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Sample records for non-ostariophysan convict cichlids

  1. Male convict cichlid 11-ketotestosterone levels throughout the reproductive cycle: an exploratory profile study in laboratory and field populations

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    Natalie April van Breukelen

    2015-05-01

    Full Text Available The convict cichlid (Amatitlania nigrofasciata has been extensively examined in relation to many behavioral topics, such as courtship, pair-bonding, bi-parental care, and territoriality. Recently, this model species has been utilized in studies on genetics, endocrinology, and neuroanatomy, with an ultimate goal of connecting behavior with its underlying mechanisms. The goal of this study was two-fold: (1 profile the circulating levels of plasma 11KT in the male convict cichlid at multiple points during the reproductive cycle and (2 generally compare the hormonal profiles of the widely used laboratory populations and those of a free-living population in the streams of Costa Rica. The results of the field experiment showed that male convict cichlids had higher levels of circulating 11KT during courtship and lower during the parental care and non-breeding phases. The profile of the laboratory population was similar to the profile of the free-living individuals, with significantly higher levels of 11KT occurring during courtship than during parental care, though the level of 11KT during non-breeding phase was elevated in the laboratory. The high levels of 11KT during courtship and low levels of 11KT during parental care found in both the field and the laboratory is similar to what has been reported in other species of teleosts, and may suggest an important function of 11KT in the expression of courtship behavior and the subsequent onset of parental behaviors in this model species.

  2. Lateralized behaviour of a non-social cichlid fish (Amatitlania nigrofasciata) in a social and a non-social environment.

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    Moscicki, Michele K; Reddon, Adam R; Hurd, Peter L

    2011-09-01

    Cerebral lateralization, the partitioning of cognitive function preferentially into one hemisphere of the brain, is a trait ubiquitous among vertebrates. Some species exhibit population level lateralization, where the pattern of cerebral lateralization is the same for most members of that species; however, other species show only individual level lateralization, where each member of the species has a unique pattern of lateralized brain function. The pattern of cerebral lateralization within a population and an individual has been shown to differ based on the stimulus being processed. It has been hypothesized that sociality within a species, such as shoaling behaviour in fish, may have led to the development and persistence of population level lateralization. Here we assessed cerebral lateralization in convict cichlids (Amatitlania nigrofasciata), a species that does not shoal as adults but that shoals briefly as juveniles. We show that both male and female convict cichlids display population level lateralization when in a solitary environment but only females show population level lateralization when in a perceived social environment. We also show that the pattern of lateralization differs between these two tasks and that strength of lateralization in one task is not predictive of strength of lateralization in the other task. Copyright © 2011 Elsevier B.V. All rights reserved.

  3. Mutational changes of intraspecific agressiveness in the convict cichlid (Cichlasoma nigrofasciatum Guenther) after irradiation of parental spermatogonia and oogonia with different doses of X-rays

    International Nuclear Information System (INIS)

    Juerges, U.; Schroeder, J.H.; Sund, M.

    1984-01-01

    The agonistic behavior of mated convict cichlids (Cichlasoma nigrofasciatum) derived from gonial germ cells which were exposed to 0 (controls), 250, 500, 1,000, or 2,000 R of X-rays was determined by counting the attacks delivered to subadult conspecifics during the first eight days after spawning. While no day effects and no interactions with sex and radiation dose were found, males were significantly more aggressive in the treatment groups than the corresponding females. The highest aggressivness appeared in F 1 pairs derived from parental gonia irradiated with 250 R, and the lowest aggressiveness occurred in the 500-F 1 group. These two treatment groups differed significantly from each other, whereas no further significant differences could be detected. F 1 males derived from gonial X-irradiation with 750 R could not be mated successfully because they killed their own females. The changes of male aggressiveness reflect reversely the previously published results of changes in social cohesiveness of the individual cichlid fish. (author)

  4. Effect of mate size on maternal reproductive effort in the convict cichlid Amatitlania siquia

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    Ashley R. ROBART

    2012-01-01

    The differential allocation hypothesis predicts individuals will increase their reproductive investment when mated to a high quality partner.In many species of fish with biparental care females prefer large males due to the males' greater ability to raise more offspring to independence.I examined the relationship between mate quality,parental care and number of offspring in a natural population of convict cichlids Amatitlania siquia.The frequency of frontal displays by females was positively correlated with male standard length.Additionally,as males increased in length relative to their mate,females increased the frequency of chases towards predators,while males decreased the number of displays towards brood predators.This trade-off in parental effort within a pair due to mate quality is a key prediction of differential allocation.The number of offspring was correlated with male,but not female,standard length.These results support the differential allocation hypothesis in that females offered more parental care to offspring of a larger male,while their mates decreased the amount of care they provided.Additionally,females benefited in terms of number of offspring by pairing with higher quality mates.Increased female investment may provide an incentive to ensure male care and maintain pair bonding,which could lead to greater reproductive success through increased offspring survival [Current Zoology 58 (1):66-72,2012].

  5. Effect of mate size on maternal reproductive effort in the convict cichlid Amatitlania siquia

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    Ashley R. ROBART

    2012-02-01

    Full Text Available The differential allocation hypothesis predicts individuals will increase their reproductive investment when mated to a high quality partner. In many species of fish with biparental care females prefer large males due to the males’ greater ability to raise more offspring to independence. I examined the relationship between mate quality, parental care and number of offspring in a natural population of convict cichlids Amatitlania siquia. The frequency of frontal displays by females was positively correlated with male standard length. Additionally, as males increased in length relative to their mate, females increased the frequency of chases towards predators, while males decreased the number of displays towards brood predators. This trade-off in parental effort within a pair due to mate quality is a key prediction of differential allocation. The number of offspring was correlated with male, but not female, standard length. These results support the differential allocation hypothesis in that females offered more parental care to offspring of a larger male, while their mates decreased the amount of care they provided. Additionally, females benefited in terms of number of offspring by pairing with higher quality mates. Increased female investment may provide an incentive to ensure male care and maintain pair bonding, which could lead to greater reproductive success through increased offspring survival [Current Zoology 58 (1: 66–72, 2012].

  6. Gross morphology and histology of the alimentary tract of the convict cichlid Amatitlania nigrofasciata.

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    Hopperdietzel, C; Hirschberg, R M; Hünigen, H; Wolter, J; Richardson, K; Plendl, J

    2014-11-01

    The primary objectives of this study were to document the macroscopic and histological structure of the alimentary tract (AT) of the convict cichlid Amatitlania nigrofasciata, because there are no data available for this omnivorous freshwater fish of the family Cichlidae. The morphology of the AT of A. nigrofasciata resembles that of related species. While having morphological criteria of the AT typical of most omnivorous fishes, such as a blind sac stomach and medium length intestine, A. nigrofasciata also has some structural peculiarities: the oesophagus is lined by a uniform stratified squamous epithelial layer with interspersed goblet cells along its entire length. Additionally, it has well-developed layers of the tunica muscularis including muscle fibre bundles that ascend into its mucosal folds. Occasionally, taste buds are present. In the transitional area between oesophagus and stomach, a prominent torus-like closure device is present. The mucosa of the stomach cannot be divided into different regions according to mucosal and morphological properties. The simple pattern of intestinal loops of A. nigrofasciata has few variations, irrespective of sex, mass and length of the individual fish. The first segment of the intestine is characterized by the largest mucososerosal ratio and the most complex mucosal surface architecture. A distinction of midgut and hindgut was not possible in A. nigrofasciata due to lack of defining structural components as described for other fish species. © 2014 The Fisheries Society of the British Isles.

  7. Antipredator responses by native mosquitofish to non-native cichlids: An examination of the role of prey naiveté

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    Rehage, Jennifer S.; Dunlop, Katherine L.; Loftus, William F.

    2009-01-01

    The strong impact of non-native predators in aquatic systems is thought to relate to the evolutionary naiveté of prey. Due to isolation and limited dispersal, this naiveté may be relatively high in freshwater systems. In this study, we tested this notion by examining the antipredator response of native mosquitofish, Gambusia holbrooki, to two non-native predators found in the Everglades, the African jewelfish,Hemichromis letourneuxi, and the Mayan cichlid, Cichlasoma urophthalmus. We manipulated prey naiveté by using two mosquitofish populations that varied in their experience with the recent invader, the African jewelfish, but had similar levels of experience with the longer-established Mayan cichlid. Specifically, we tested these predictions: (1) predator hunting modes differed between the two predators, (2) predation rates would be higher by the novel jewelfish predator, (3) particularly on the naive population living where jewelfish have not invaded yet, (4) antipredator responses would be stronger to Mayan cichlids due to greater experience and weaker and/or ineffective to jewelfish, and (5) especially weakest by the naive population. We assayed prey and predator behavior, and prey mortality in lab aquaria where both predators and prey were free-ranging. Predator hunting modes and habitat domains differed, with jewelfish being more active search predators that used slightly higher parts of the water column and less of the habitat structure relative to Mayan cichlids. In disagreement with our predictions, predation rates were similar between the two predators, antipredator responses were stronger to African jewelfish (except for predator inspections), and there was no difference in response between jewelfish-savvy and jewelfish-naive populations. These results suggest that despite the novelty of introduced predators, prey may be able to respond appropriately if non-native predator archetypes are similar enough to those of native predators, if prey rely

  8. Complete mitochondrial DNA sequences of the threadfin cichlid (Petrochromis trewavasae and the blunthead cichlid (Tropheus moorii and patterns of mitochondrial genome evolution in cichlid fishes.

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    Christoph Fischer

    Full Text Available The cichlid fishes of the East African Great Lakes represent a model especially suited to study adaptive radiation and speciation. With several African cichlid genome projects being in progress, a promising set of closely related genomes is emerging, which is expected to serve as a valuable data base to solve questions on genotype-phenotype relations. The mitochondrial (mt genomes presented here are the first results of the assembly and annotation process for two closely related but eco-morphologically highly distinct Lake Tanganyika cichlids, Petrochromis trewavasae and Tropheus moorii. The genomic sequences comprise 16,588 bp (P. trewavasae and 16,590 bp (T. moorii, and exhibit the typical mitochondrial structure, with 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a non-coding control region. Analyses confirmed that the two species are very closely related with an overall sequence similarity of 96%. We analyzed the newly generated sequences in the phylogenetic context of 21 published labroid fish mitochondrial genomes. Consistent with other vertebrates, the D-loop region was found to evolve faster than protein-coding genes, which in turn are followed by the rRNAs; the tRNAs vary greatly in the rate of sequence evolution, but on average evolve the slowest. Within the group of coding genes, ND6 evolves most rapidly. Codon usage is similar among examined cichlid tribes and labroid families; although a slight shift in usage patterns down the gene tree could be observed. Despite having a clearly different nucleotide composition, ND6 showed a similar codon usage. C-terminal ends of Cox1 exhibit variations, where the varying number of amino acids is related to the structure of the obtained phylogenetic tree. This variation may be of functional relevance for Cox1 synthesis.

  9. Temporal diversification of Central American cichlids

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    Hulsey C Darrin

    2010-09-01

    Full Text Available Abstract Background Cichlid fishes are classic examples of adaptive radiation because of their putative tendency to explosively diversify after invading novel environments. To examine whether ecological opportunity increased diversification (speciation minus extinction early in a species-rich cichlid radiation, we determined if Heroine cichlids experienced a burst of diversification following their invasion of Central America. Results We first reconstructed the Heroine phylogeny and determined the basal node to use as the root of Central American Heroine diversification. We then examined the influence of incomplete taxon sampling on this group's diversification patterns. First, we added missing species randomly to the phylogeny and assessed deviations from a constant rate of lineage accumulation. Using a range of species numbers, we failed to recover significant deviations from a pure-birth process and found little support for an early burst of diversification. Then, we examined patterns of lineage accumulation as nodes were increasingly truncated. We assumed that as we removed more recently diverged lineages that sampling would become more complete thereby increasing the power to detect deviations from a pure-birth model. However, truncation of nodes provided even less support for an early burst of diversification. Conclusions Contrary to expectations, our analyses suggest Heroine cichlids did not undergo a burst of diversification when they invaded from South America. Throughout their history in Central America, Heroine cichlids appear to have diversified at a constant rate.

  10. Evolutionary history of Lake Tanganyika's scale-eating cichlid fishes.

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    Koblmüller, Stephan; Egger, Bernd; Sturmbauer, Christian; Sefc, Kristina M

    2007-09-01

    Although Lake Tanganyika is not the most species-rich of the Great East African Lakes it comprises by far the greatest diversity of cichlid fishes in terms of morphology, ecology, and breeding styles. Our study focuses on the Tanganyikan cichlid tribe Perissodini, which exhibits one of the most peculiar feeding strategies found in cichlids-scale-eating. Their evolutionary history was reconstructed from 1416 bp DNA sequence of two mitochondrial genes (ND2 and partial control region) and from 612 AFLP markers. We confirm the inclusion of the zooplanktivorous genus Haplotaxodon in the tribe Perissodini, and species status of Haplotaxodon trifasciatus. Within the Perissodini, the major lineages emerged within a short period roughly 1.5-2 MYA, which makes their radiation slightly younger than that of other Tanganyikan cichlid tribes. Most scale-eaters evolved in deep-water habitat, perhaps associated with the previously documented radiations of other deep-water dwelling cichlid lineages, and colonized the shallow habitat only recently.

  11. Lake Tanganyika--a 'melting pot' of ancient and young cichlid lineages (Teleostei: Cichlidae?

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    Juliane D Weiss

    Full Text Available A long history of research focused on the East Africa cichlid radiations (EAR revealed discrepancies between mtDNA and nuclear phylogenies, suggesting that interspecific hybridisation may have been significant during the radiation of these fishes. The approximately 250 cichlid species of Lake Tanganyika have their roots in a monophyletic African cichlid assemblage, but controversies remain about the precise phylogenetic origin and placement of different lineages and consequently about L. Tanganyika colonization scenarios. 3312 AFLP loci and the mitochondrial ND2 gene were genotyped for 91 species representing almost all major lacustrine and riverine haplotilapiine east African cichlid lineages with a focus on L. Tanganyika endemics. Explicitly testing for the possibility of ancient hybridisation events, a comprehensive phylogenetic network hypothesis is proposed for the origin and diversification of L. Tanganyika cichlids. Inference of discordant phylogenetic signal strongly suggests that the genomes of two endemic L. Tanganyika tribes, Eretmodini and Tropheini, are composed of an ancient mixture of riverine and lacustrine lineages. For the first time a strong monophyly signal of all non-haplochromine mouthbrooding species endemic to L. Tanganyika ("ancient mouthbrooders" was detected. Further, in the genomes of early diverging L. Tanganyika endemics Trematocarini, Bathybatini, Hemibatini and Boulengerochromis genetic components of other lineages belonging to the East African Radiation appear to be present. In combination with recent palaeo-geological results showing that tectonic activity in the L. Tanganyika region resulted in highly dynamic and heterogeneous landscape evolution over the Neogene and Pleistocene, the novel phylogenetic data render a single lacustrine basin as the geographical cradle of the endemic L. Tanganyika cichlid lineages unlikely. Instead a scenario of a pre-rift origin of several independent L. Tanganyika precursor

  12. Genetic Evidence for Multiple Sources of the Non-Native Fish Cichlasoma urophthalmus (Günther; Mayan Cichlids) in Southern Florida

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    Harrison, Elizabeth; Trexler, Joel C.; Collins, Timothy M.; Vazquez-Domínguez, Ella; Razo-Mendivil, Ulises; Matamoros, Wilfredo A.; Barrientos, Christian

    2014-01-01

    The number and diversity of source populations may influence the genetic diversity of newly introduced populations and affect the likelihood of their establishment and spread. We used the cytochrome b mitochondrial gene and nuclear microsatellite loci to identify the sources of a successful invader in southern Florida, USA, Cichlasoma urophthalmus (Mayan cichlid). Our cytochrome b data supported an introduction from Guatemala, while our microsatellite data suggested movement of Mayan Cichlids...

  13. Genetic evidence for multiple sources of the non-native fish Cichlasoma urophthalmus (Günther; Mayan Cichlids in southern Florida.

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    Elizabeth Harrison

    Full Text Available The number and diversity of source populations may influence the genetic diversity of newly introduced populations and affect the likelihood of their establishment and spread. We used the cytochrome b mitochondrial gene and nuclear microsatellite loci to identify the sources of a successful invader in southern Florida, USA, Cichlasoma urophthalmus (Mayan cichlid. Our cytochrome b data supported an introduction from Guatemala, while our microsatellite data suggested movement of Mayan Cichlids from the upper Yucatán Peninsula to Guatemala and introductions from Guatemala and Belize to Florida. The mismatch between mitochondrial and nuclear genomes suggests admixture of a female lineage from Guatemala, where all individuals were fixed for the mitochondrial haplotype found in the introduced population, and a more diverse but also relatively small number of individuals from Belize. The Florida cytochrome b haplotype appears to be absent from Belize (0 out of 136 fish screened from Belize had this haplotype. Genetic structure within the Florida population was minimal, indicating a panmictic population, while Mexican and Central American samples displayed more genetic subdivision. Individuals from the Upper Yucatán Peninsula and the Petén region of Guatemala were more genetically similar to each other than to fish from nearby sites and movement of Mayan Cichlids between these regions occurred thousands of generations ago, suggestive of pre-Columbian human transportation of Mayan Cichlids through this region. Mayan Cichlids present a rare example of cytonuclear disequilibrium and reduced genetic diversity in the introduced population that persists more than 30 years (at least 7-8 generations after introduction. We suggest that hybridization occurred in ornamental fish farms in Florida and may contribute their establishment in the novel habitat. Hybridization prior to release may contribute to other successful invasions.

  14. Genetic evidence for multiple sources of the non-native fish Cichlasoma urophthalmus (Günther; Mayan Cichlids) in southern Florida.

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    Harrison, Elizabeth; Trexler, Joel C; Collins, Timothy M; Vazquez-Domínguez, Ella; Razo-Mendivil, Ulises; Matamoros, Wilfredo A; Barrientos, Christian

    2014-01-01

    The number and diversity of source populations may influence the genetic diversity of newly introduced populations and affect the likelihood of their establishment and spread. We used the cytochrome b mitochondrial gene and nuclear microsatellite loci to identify the sources of a successful invader in southern Florida, USA, Cichlasoma urophthalmus (Mayan cichlid). Our cytochrome b data supported an introduction from Guatemala, while our microsatellite data suggested movement of Mayan Cichlids from the upper Yucatán Peninsula to Guatemala and introductions from Guatemala and Belize to Florida. The mismatch between mitochondrial and nuclear genomes suggests admixture of a female lineage from Guatemala, where all individuals were fixed for the mitochondrial haplotype found in the introduced population, and a more diverse but also relatively small number of individuals from Belize. The Florida cytochrome b haplotype appears to be absent from Belize (0 out of 136 fish screened from Belize had this haplotype). Genetic structure within the Florida population was minimal, indicating a panmictic population, while Mexican and Central American samples displayed more genetic subdivision. Individuals from the Upper Yucatán Peninsula and the Petén region of Guatemala were more genetically similar to each other than to fish from nearby sites and movement of Mayan Cichlids between these regions occurred thousands of generations ago, suggestive of pre-Columbian human transportation of Mayan Cichlids through this region. Mayan Cichlids present a rare example of cytonuclear disequilibrium and reduced genetic diversity in the introduced population that persists more than 30 years (at least 7-8 generations) after introduction. We suggest that hybridization occurred in ornamental fish farms in Florida and may contribute their establishment in the novel habitat. Hybridization prior to release may contribute to other successful invasions.

  15. Monogeneans in introduced and native cichlids in México: evidence for transfer.

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    Jiménez-García, M I; Vidal-Martínez, V M; López-Jiménez, S

    2001-08-01

    We examined 2 cichlid fish species native to México, Cichlasoma callolepis and C. fenestratum, and 2 introduced African cichlids, Oreochromis aureus and O. niloticus, from 3 localities in southeastern México for monogeneans. Six monogenean species infected the African cichlids: Cichlidogyrus haplochromii, C. dossoui, C. longicornis longicornis, C. sclerosus, C. tilapiae, and Enterogyrus malmbergi. We found all these parasite species, except C. haplochromii and C. dossoui, on the native C. fenestratum and C. callolepis. Prevalences of Cichlidogyrus spp. were 3-10% and abundances ranged from 0.03 +/- 0.2 to 0.1 +/- 0.3 for native cichlids. We only recovered a single E. malmbergi from 1 C. callolepis. We found Sciadicleithrum bravohollisae, a monogenean of native Cichlasoma spp., on the gills of the introduced O. aureus from Lake Catemaco (prevalence 3%, abundance 0.03 +/- 0.2). Although prevalence and abundance in atypical hosts were fairly low, the present findings provide evidence of monogenean transfer from African to American cichlids and vice versa. This is the first record of exotic monogeneans in the genus Cichlidogyrus and Enterogyrus infecting native American cichlid fish. It is also the first record from southeastern México of a native American monogenean infecting introduced African cichlids.

  16. Body size diversity and frequency distributions of Neotropical cichlid fishes (Cichliformes: Cichlidae: Cichlinae.

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    Sarah E Steele

    Full Text Available Body size is an important correlate of life history, ecology and distribution of species. Despite this, very little is known about body size evolution in fishes, particularly freshwater fishes of the Neotropics where species and body size diversity are relatively high. Phylogenetic history and body size data were used to explore body size frequency distributions in Neotropical cichlids, a broadly distributed and ecologically diverse group of fishes that is highly representative of body size diversity in Neotropical freshwater fishes. We test for divergence, phylogenetic autocorrelation and among-clade partitioning of body size space. Neotropical cichlids show low phylogenetic autocorrelation and divergence within and among taxonomic levels. Three distinct regions of body size space were identified from body size frequency distributions at various taxonomic levels corresponding to subclades of the most diverse tribe, Geophagini. These regions suggest that lineages may be evolving towards particular size optima that may be tied to specific ecological roles. The diversification of Geophagini appears to constrain the evolution of body size among other Neotropical cichlid lineages; non-Geophagini clades show lower species-richness in body size regions shared with Geophagini. Neotropical cichlid genera show less divergence and extreme body size than expected within and among tribes. Body size divergence among species may instead be present or linked to ecology at the community assembly scale.

  17. Directional selection has shaped the oral jaws of Lake Malawi cichlid fishes

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    Albertson, R. Craig; Streelman, J. Todd; Kocher, Thomas D.

    2003-01-01

    East African cichlid fishes represent one of the most striking examples of rapid and convergent evolutionary radiation among vertebrates. Models of ecological speciation would suggest that functional divergence in feeding morphology has contributed to the origin and maintenance of cichlid species diversity. However, definitive evidence for the action of natural selection has been missing. Here we use quantitative genetics to identify regions of the cichlid genome responsible for functionally ...

  18. The Development and Dissemination of Council of Europe Policy on Education about Religions and Non-Religious Convictions

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    Jackson, Robert

    2014-01-01

    This article, written from an insider perspective, and in a personal capacity (the author has been involved with the Council of Europe's work on religion and education since its inception in 2002), gives an account of the developing interest in the study of religions (and latterly non-religious convictions) in publicly funded schools by the…

  19. Lake Malawi cichlid evolution along a benthic/limnetic axis.

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    Hulsey, C D; Roberts, R J; Loh, Y-H E; Rupp, M F; Streelman, J T

    2013-07-01

    Divergence along a benthic to limnetic habitat axis is ubiquitous in aquatic systems. However, this type of habitat divergence has largely been examined in low diversity, high latitude lake systems. In this study, we examined the importance of benthic and limnetic divergence within the incredibly species-rich radiation of Lake Malawi cichlid fishes. Using novel phylogenetic reconstructions, we provided a series of hypotheses regarding the evolutionary relationships among 24 benthic and limnetic species that suggests divergence along this axis has occurred multiple times within Lake Malawi cichlids. Because pectoral fin morphology is often associated with divergence along this habitat axis in other fish groups, we investigated divergence in pectoral fin muscles in these benthic and limnetic cichlid species. We showed that the eight pectoral fin muscles and fin area generally tended to evolve in a tightly correlated manner in the Lake Malawi cichlids. Additionally, we found that larger pectoral fin muscles are strongly associated with the independent evolution of the benthic feeding habit across this group of fish. Evolutionary specialization along a benthic/limnetic axis has occurred multiple times within this tropical lake radiation and has produced repeated convergent matching between exploitation of water column habitats and locomotory morphology.

  20. Evolution of cichlid vision via trans-regulatory divergence

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    O’Quin Kelly E

    2012-12-01

    Full Text Available Abstract Background Phenotypic evolution may occur through mutations that affect either the structure or expression of protein-coding genes. Although the evolution of color vision has historically been attributed to structural mutations within the opsin genes, recent research has shown that opsin regulatory mutations can also tune photoreceptor sensitivity and color vision. Visual sensitivity in African cichlid fishes varies as a result of the differential expression of seven opsin genes. We crossed cichlid species that express different opsin gene sets and scanned their genome for expression Quantitative Trait Loci (eQTL responsible for these differences. Our results shed light on the role that different structural, cis-, and trans-regulatory mutations play in the evolution of color vision. Results We identified 11 eQTL that contribute to the divergent expression of five opsin genes. On three linkage groups, several eQTL formed regulatory “hotspots” associated with the expression of multiple opsins. Importantly, however, the majority of the eQTL we identified (8/11 or 73% occur on linkage groups located trans to the opsin genes, suggesting that cichlid color vision has evolved primarily via trans-regulatory divergence. By modeling the impact of just two of these trans-regulatory eQTL, we show that opsin regulatory mutations can alter cichlid photoreceptor sensitivity and color vision at least as much as opsin structural mutations can. Conclusions Combined with previous work, we demonstrate that the evolution of cichlid color vision results from the interplay of structural, cis-, and especially trans-regulatory loci. Although there are numerous examples of structural and cis-regulatory mutations that contribute to phenotypic evolution, our results suggest that trans-regulatory mutations could contribute to phenotypic divergence more commonly than previously expected, especially in systems like color vision, where compensatory changes in the

  1. Characterization of V1R receptor (ora) genes in Lake Victoria cichlids.

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    Ota, Tomoki; Nikaido, Masato; Suzuki, Hikoyu; Hagino-Yamagishi, Kimiko; Okada, Norihiro

    2012-05-15

    Although olfaction could play a crucial role in underwater habitats by allowing fish to sense a variety of nonvolatile chemical signals, the importance of olfaction in species-rich cichlids is still controversial. In particular, examining whether cichlids rely on olfaction for reproduction is of primary interest to understand the mechanisms of speciation. In the present study, we explored the V1R (also known as ora) genes, which are believed to encode reproductive pheromone receptors in fish, in the genomes of Lake Victoria cichlids. By screening a bacterial artificial chromosome library, we identified all six intact V1R genes (V1R1 to V1R6) that have been reported in other teleost fish. Furthermore, RT-PCR and in situ hybridization analyses showed that all of the V1R genes were expressed in the olfactory epithelium, indicating that these receptors are functional in cichlids. These observations indicate that cichlids use V1R-mediated olfaction in some ways for their social behaviors. Copyright © 2012 Elsevier B.V. All rights reserved.

  2. Transcriptomics of morphological color change in polychromatic Midas cichlids.

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    Henning, Frederico; Jones, Julia C; Franchini, Paolo; Meyer, Axel

    2013-03-13

    Animal pigmentation has received much attention in evolutionary biology research due to its strong implications for adaptation and speciation. However, apart from a few cases the genetic changes associated with these evolutionary processes remain largely unknown. The Midas cichlid fish from Central America are an ideal model system for investigating pigmentation traits that may also play a role in speciation. Most Midas cichlids maintain their melanophores and exhibit a grayish (normal) color pattern throughout their lives. A minority of individuals, however, undergo color change and exhibit a distinctive gold or even white coloration in adulthood. The ontogenetic color change in the Midas cichlids may also shed light on the molecular mechanisms underlying pigmentation disorders in humans. Here we use next-generation sequencing (Illumina) RNAseq analyses to compare skin transcriptome-wide expression levels in three distinct stages of color transformation in Midas cichlids. cDNA libraries of scale tissue, for six biological replicates of each group, were generated and sequenced using Illumina technology. Using a combination of three differential expression (DE) analyses we identified 46 candidate genes that showed DE between the color morphs. We find evidence for two key DE patterns: a) genes involved in melanosomal pathways are up-regulated in normally pigmented fish; and b) immediate early and inflammatory response genes were up-regulated in transitional fish, a response that parallels some human skin disorders such as melanoma formation and psoriasis. One of the DE genes segregates with the gold phenotype in a genetic cross and might be associated with incipient speciation in this highly "species-rich" lineage of cichlids. Using transcriptomic analyses we successfully identified key expression differences between different color morphs of Midas cichlid fish. These differentially expressed genes have important implications for our understanding of the molecular

  3. Directional selection has shaped the oral jaws of Lake Malawi cichlid fishes.

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    Albertson, R Craig; Streelman, J Todd; Kocher, Thomas D

    2003-04-29

    East African cichlid fishes represent one of the most striking examples of rapid and convergent evolutionary radiation among vertebrates. Models of ecological speciation would suggest that functional divergence in feeding morphology has contributed to the origin and maintenance of cichlid species diversity. However, definitive evidence for the action of natural selection has been missing. Here we use quantitative genetics to identify regions of the cichlid genome responsible for functionally important shape differences in the oral jaw apparatus. The consistent direction of effects for individual quantitative trait loci suggest that cichlid jaws and teeth evolved in response to strong, divergent selection. Moreover, several chromosomal regions contain a disproportionate number of quantitative trait loci, indicating a prominent role for pleiotropy or genetic linkage in the divergence of this character complex. Of particular interest are genomic intervals with concerted effects on both the length and height of the lower jaw. Coordinated changes in this area of the oral jaw apparatus are predicted to have direct consequences for the speed and strength of jaw movement. Taken together, our results imply that the rapid and replicative nature of cichlid trophic evolution is the result of directional selection on chromosomal packages that encode functionally linked aspects of the craniofacial skeleton.

  4. Temporal patterns of diversification across global cichlid biodiversity (Acanthomorpha: Cichlidae.

    Directory of Open Access Journals (Sweden)

    Caleb D McMahan

    Full Text Available The contrasting distribution of species diversity across the major lineages of cichlids makes them an ideal group for investigating macroevolutionary processes. In this study, we investigate whether different rates of diversification may explain the disparity in species richness across cichlid lineages globally. We present the most taxonomically robust time-calibrated hypothesis of cichlid evolutionary relationships to date. We then utilize this temporal framework to investigate whether both species-rich and depauperate lineages are associated with rapid shifts in diversification rates and if exceptional species richness can be explained by clade age alone. A single significant rapid rate shift increase is detected within the evolutionary history of the African subfamily Pseudocrenilabrinae, which includes the haplochromins of the East African Great Lakes. Several lineages from the subfamilies Pseudocrenilabrinae (Australotilapiini, Oreochromini and Cichlinae (Heroini exhibit exceptional species richness given their clade age, a net rate of diversification, and relative rates of extinction, indicating that clade age alone is not a sufficient explanation for their increased diversity. Our results indicate that the Neotropical Cichlinae includes lineages that have not experienced a significant rapid burst in diversification when compared to certain African lineages (rift lake. Neotropical cichlids have remained comparatively understudied with regard to macroevolutionary patterns relative to African lineages, and our results indicate that of Neotropical lineages, the tribe Heroini may have an elevated rate of diversification in contrast to other Neotropical cichlids. These findings provide insight into our understanding of the diversification patterns across taxonomically disparate lineages in this diverse clade of freshwater fishes and one of the most species-rich families of vertebrates.

  5. Morphology and Efficiency of a Specialized Foraging Behavior, Sediment Sifting, in Neotropical Cichlid Fishes

    Science.gov (United States)

    Willis, Stuart; Watkins, Crystal; Honeycutt, Rodney L.; Winemiller, Kirk O.

    2014-01-01

    Understanding of relationships between morphology and ecological performance can help to reveal how natural selection drives biological diversification. We investigate relationships between feeding behavior, foraging performance and morphology within a diverse group of teleost fishes, and examine the extent to which associations can be explained by evolutionary relatedness. Morphological adaptation associated with sediment sifting was examined using a phylogenetic linear discriminant analysis on a set of ecomorphological traits from 27 species of Neotropical cichlids. For most sifting taxa, feeding behavior could be effectively predicted by a linear discriminant function of ecomorphology across multiple clades of sediment sifters, and this pattern could not be explained by shared evolutionary history alone. Additionally, we tested foraging efficiency in seven Neotropical cichlid species, five of which are specialized benthic feeders with differing head morphology. Efficiency was evaluated based on the degree to which invertebrate prey could be retrieved at different depths of sediment. Feeding performance was compared both with respect to feeding mode and species using a phylogenetic ANCOVA, with substrate depth as a covariate. Benthic foraging performance was constant across sediment depths in non-sifters but declined with depth in sifters. The non-sifting Hypsophrys used sweeping motions of the body and fins to excavate large pits to uncover prey; this tactic was more efficient for consuming deeply buried invertebrates than observed among sediment sifters. Findings indicate that similar feeding performance among sediment-sifting cichlids extracting invertebrate prey from shallow sediment layers reflects constraints associated with functional morphology and, to a lesser extent, phylogeny. PMID:24603485

  6. Morphology and efficiency of a specialized foraging behavior, sediment sifting, in neotropical cichlid fishes.

    Directory of Open Access Journals (Sweden)

    Hernán López-Fernández

    Full Text Available Understanding of relationships between morphology and ecological performance can help to reveal how natural selection drives biological diversification. We investigate relationships between feeding behavior, foraging performance and morphology within a diverse group of teleost fishes, and examine the extent to which associations can be explained by evolutionary relatedness. Morphological adaptation associated with sediment sifting was examined using a phylogenetic linear discriminant analysis on a set of ecomorphological traits from 27 species of Neotropical cichlids. For most sifting taxa, feeding behavior could be effectively predicted by a linear discriminant function of ecomorphology across multiple clades of sediment sifters, and this pattern could not be explained by shared evolutionary history alone. Additionally, we tested foraging efficiency in seven Neotropical cichlid species, five of which are specialized benthic feeders with differing head morphology. Efficiency was evaluated based on the degree to which invertebrate prey could be retrieved at different depths of sediment. Feeding performance was compared both with respect to feeding mode and species using a phylogenetic ANCOVA, with substrate depth as a covariate. Benthic foraging performance was constant across sediment depths in non-sifters but declined with depth in sifters. The non-sifting Hypsophrys used sweeping motions of the body and fins to excavate large pits to uncover prey; this tactic was more efficient for consuming deeply buried invertebrates than observed among sediment sifters. Findings indicate that similar feeding performance among sediment-sifting cichlids extracting invertebrate prey from shallow sediment layers reflects constraints associated with functional morphology and, to a lesser extent, phylogeny.

  7. Morphology and efficiency of a specialized foraging behavior, sediment sifting, in neotropical cichlid fishes.

    Science.gov (United States)

    López-Fernández, Hernán; Arbour, Jessica; Willis, Stuart; Watkins, Crystal; Honeycutt, Rodney L; Winemiller, Kirk O

    2014-01-01

    Understanding of relationships between morphology and ecological performance can help to reveal how natural selection drives biological diversification. We investigate relationships between feeding behavior, foraging performance and morphology within a diverse group of teleost fishes, and examine the extent to which associations can be explained by evolutionary relatedness. Morphological adaptation associated with sediment sifting was examined using a phylogenetic linear discriminant analysis on a set of ecomorphological traits from 27 species of Neotropical cichlids. For most sifting taxa, feeding behavior could be effectively predicted by a linear discriminant function of ecomorphology across multiple clades of sediment sifters, and this pattern could not be explained by shared evolutionary history alone. Additionally, we tested foraging efficiency in seven Neotropical cichlid species, five of which are specialized benthic feeders with differing head morphology. Efficiency was evaluated based on the degree to which invertebrate prey could be retrieved at different depths of sediment. Feeding performance was compared both with respect to feeding mode and species using a phylogenetic ANCOVA, with substrate depth as a covariate. Benthic foraging performance was constant across sediment depths in non-sifters but declined with depth in sifters. The non-sifting Hypsophrys used sweeping motions of the body and fins to excavate large pits to uncover prey; this tactic was more efficient for consuming deeply buried invertebrates than observed among sediment sifters. Findings indicate that similar feeding performance among sediment-sifting cichlids extracting invertebrate prey from shallow sediment layers reflects constraints associated with functional morphology and, to a lesser extent, phylogeny.

  8. Algal dermatitis in cichlids.

    Science.gov (United States)

    Yanong, Roy P E; Francis-Floyd, Ruth; Curtis, Eric; Klinger, Ruth Ellen; Cichra, Mary E; Berzins, Ilze K

    2002-05-01

    Three varieties of a popular African cichlid aquarium species, Pseudotropheus zebra, from 2 tropical fish farms in east central Florida were submitted for diagnostic evaluation because of the development of multifocal green lesions. The percentage of infected fish in these populations varied from 5 to 60%. Fish were otherwise clinically normal. Microscopic examination of fresh and fixed lesions confirmed algal dermatitis, with light invasion of several internal organs in each group. A different alga was identified from each farm. Fish from farm A were infected with Chlorochytrium spp, whereas fish from farm B were infected with Scenedesmus spp. Because of the numbers of fish involved, bath treatments to remove the algae from affected fish from farm B were attempted, with different dosages of several common algaecides including copper sulfate pentahydrate, diuron, and sodium chloride. However, none of these treatments were successful, possibly because of the location of the algae under the scales and within the dermis, and also because of the sequestering effect of the granulomatous response. To our knowledge, this is the first report of algal dermatitis in ornamental cichlids, as well as the first report of Scenedesmus spp infection in any fish.

  9. A pharyngeal jaw evolutionary innovation facilitated extinction in Lake Victoria cichlids.

    Science.gov (United States)

    McGee, Matthew D; Borstein, Samuel R; Neches, Russell Y; Buescher, Heinz H; Seehausen, Ole; Wainwright, Peter C

    2015-11-27

    Evolutionary innovations, traits that give species access to previously unoccupied niches, may promote speciation and adaptive radiation. Here, we show that such innovations can also result in competitive inferiority and extinction. We present evidence that the modified pharyngeal jaws of cichlid fishes and several marine fish lineages, a classic example of evolutionary innovation, are not universally beneficial. A large-scale analysis of dietary evolution across marine fish lineages reveals that the innovation compromises access to energy-rich predator niches. We show that this competitive inferiority shaped the adaptive radiation of cichlids in Lake Tanganyika and played a pivotal and previously unrecognized role in the mass extinction of cichlid fishes in Lake Victoria after Nile perch invasion. Copyright © 2015, American Association for the Advancement of Science.

  10. Accelerated Evolution and Functional Divergence of the Dim Light Visual Pigment Accompanies Cichlid Colonization of Central America.

    Science.gov (United States)

    Hauser, Frances E; Ilves, Katriina L; Schott, Ryan K; Castiglione, Gianni M; López-Fernández, Hernán; Chang, Belinda S W

    2017-10-01

    Cichlids encompass one of the most diverse groups of fishes in South and Central America, and show extensive variation in life history, morphology, and colouration. While studies of visual system evolution in cichlids have focussed largely on the African rift lake species flocks, Neotropical cichlids offer a unique opportunity to investigate visual system evolution at broader temporal and geographic scales. South American cichlid colonization of Central America has likely promoted accelerated rates of morphological evolution in Central American lineages as they encountered reduced competition, renewed ecological opportunity, and novel aquatic habitats. To investigate whether such transitions have influenced molecular evolution of vision in Central American cichlids, we sequenced the dim-light rhodopsin gene in 101 Neotropical cichlid species, spanning the diversity of the clade. We find strong evidence for increased rates of evolution in Central American cichlid rhodopsin relative to South American lineages, and identify several sites under positive selection in rhodopsin that likely contribute to adaptation to different photic environments. We expressed a Neotropical cichlid rhodopsin protein invitro for the first time, and found that while its spectral tuning properties were characteristic of typical vertebrate rhodopsin pigments, the rate of decay of its active signalling form was much slower, consistent with dim light adaptation in other vertebrate rhodopsins. Using site-directed mutagenesis combined with spectroscopic assays, we found that a key amino acid substitution present in some Central American cichlids accelerates the rate of decay of active rhodopsin, which may mediate adaptation to clear water habitats. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  11. The 1% of the population accountable for 63% of all violent crime convictions.

    Science.gov (United States)

    Falk, Orjan; Wallinius, Märta; Lundström, Sebastian; Frisell, Thomas; Anckarsäter, Henrik; Kerekes, Nóra

    2014-04-01

    Population-based studies on violent crime and background factors may provide an understanding of the relationships between susceptibility factors and crime. We aimed to determine the distribution of violent crime convictions in the Swedish population 1973-2004 and to identify criminal, academic, parental, and psychiatric risk factors for persistence in violent crime. The nationwide multi-generation register was used with many other linked nationwide registers to select participants. All individuals born in 1958-1980 (2,393,765 individuals) were included. Persistent violent offenders (those with a lifetime history of three or more violent crime convictions) were compared with individuals having one or two such convictions, and to matched non-offenders. Independent variables were gender, age of first conviction for a violent crime, nonviolent crime convictions, and diagnoses for major mental disorders, personality disorders, and substance use disorders. A total of 93,642 individuals (3.9%) had at least one violent conviction. The distribution of convictions was highly skewed; 24,342 persistent violent offenders (1.0% of the total population) accounted for 63.2% of all convictions. Persistence in violence was associated with male sex (OR 2.5), personality disorder (OR 2.3), violent crime conviction before age 19 (OR 2.0), drug-related offenses (OR 1.9), nonviolent criminality (OR 1.9), substance use disorder (OR 1.9), and major mental disorder (OR 1.3). The majority of violent crimes are perpetrated by a small number of persistent violent offenders, typically males, characterized by early onset of violent criminality, substance abuse, personality disorders, and nonviolent criminality.

  12. Tol2 transposon-mediated transgenesis in the Midas cichlid (Amphilophus citrinellus) - towards understanding gene function and regulatory evolution in an ecological model system for rapid phenotypic diversification.

    Science.gov (United States)

    Kratochwil, Claudius F; Sefton, Maggie M; Liang, Yipeng; Meyer, Axel

    2017-11-23

    The Midas cichlid species complex (Amphilophus spp.) is widely known among evolutionary biologists as a model system for sympatric speciation and adaptive phenotypic divergence within extremely short periods of time (a few hundred generations). The repeated parallel evolution of adaptive phenotypes in this radiation, combined with their near genetic identity, makes them an excellent model for studying phenotypic diversification. While many ecological and evolutionary studies have been performed on Midas cichlids, the molecular basis of specific phenotypes, particularly adaptations, and their underlying coding and cis-regulatory changes have not yet been studied thoroughly. For the first time in any New World cichlid, we use Tol2 transposon-mediated transgenesis in the Midas cichlid (Amphilophus citrinellus). By adapting existing microinjection protocols, we established an effective protocol for transgenesis in Midas cichlids. Embryos were injected with a Tol2 plasmid construct that drives enhanced green fluorescent protein (eGFP) expression under the control of the ubiquitin promoter. The transgene was successfully integrated into the germline, driving strong ubiquitous expression of eGFP in the first transgenic Midas cichlid line. Additionally, we show transient expression of two further transgenic constructs, ubiquitin::tdTomato and mitfa::eGFP. Transgenesis in Midas cichlids will facilitate further investigation of the genetic basis of species-specific traits, many of which are adaptations. Transgenesis is a versatile tool not only for studying regulatory elements such as promoters and enhancers, but also for testing gene function through overexpression of allelic gene variants. As such, it is an important first step in establishing the Midas cichlid as a powerful model for studying adaptive coding and non-coding changes in an ecological and evolutionary context.

  13. Adaptive phenotypic plasticity in the Midas cichlid fish pharyngeal jaw and its relevance in adaptive radiation

    Directory of Open Access Journals (Sweden)

    Salzburger Walter

    2011-04-01

    Full Text Available Abstract Background Phenotypic evolution and its role in the diversification of organisms is a central topic in evolutionary biology. A neglected factor during the modern evolutionary synthesis, adaptive phenotypic plasticity, more recently attracted the attention of many evolutionary biologists and is now recognized as an important ingredient in both population persistence and diversification. The traits and directions in which an ancestral source population displays phenotypic plasticity might partly determine the trajectories in morphospace, which are accessible for an adaptive radiation, starting from the colonization of a novel environment. In the case of repeated colonizations of similar environments from the same source population this "flexible stem" hypothesis predicts similar phenotypes to arise in repeated subsequent radiations. The Midas Cichlid (Amphilophus spp. in Nicaragua has radiated in parallel in several crater-lakes seeded by populations originating from the Nicaraguan Great Lakes. Here, we tested phenotypic plasticity in the pharyngeal jaw of Midas Cichlids. The pharyngeal jaw apparatus of cichlids, a second set of jaws functionally decoupled from the oral ones, is known to mediate ecological specialization and often differs strongly between sister-species. Results We performed a common garden experiment raising three groups of Midas cichlids on food differing in hardness and calcium content. Analyzing the lower pharyngeal jaw-bones we find significant differences between diet groups qualitatively resembling the differences found between specialized species. Observed differences in pharyngeal jaw expression between groups were attributable to the diet's mechanical resistance, whereas surplus calcium in the diet was not found to be of importance. Conclusions The pharyngeal jaw apparatus of Midas Cichlids can be expressed plastically if stimulated mechanically during feeding. Since this trait is commonly differentiated - among

  14. Adaptive phenotypic plasticity in the Midas cichlid fish pharyngeal jaw and its relevance in adaptive radiation.

    Science.gov (United States)

    Muschick, Moritz; Barluenga, Marta; Salzburger, Walter; Meyer, Axel

    2011-04-30

    Phenotypic evolution and its role in the diversification of organisms is a central topic in evolutionary biology. A neglected factor during the modern evolutionary synthesis, adaptive phenotypic plasticity, more recently attracted the attention of many evolutionary biologists and is now recognized as an important ingredient in both population persistence and diversification. The traits and directions in which an ancestral source population displays phenotypic plasticity might partly determine the trajectories in morphospace, which are accessible for an adaptive radiation, starting from the colonization of a novel environment. In the case of repeated colonizations of similar environments from the same source population this "flexible stem" hypothesis predicts similar phenotypes to arise in repeated subsequent radiations. The Midas Cichlid (Amphilophus spp.) in Nicaragua has radiated in parallel in several crater-lakes seeded by populations originating from the Nicaraguan Great Lakes. Here, we tested phenotypic plasticity in the pharyngeal jaw of Midas Cichlids. The pharyngeal jaw apparatus of cichlids, a second set of jaws functionally decoupled from the oral ones, is known to mediate ecological specialization and often differs strongly between sister-species. We performed a common garden experiment raising three groups of Midas cichlids on food differing in hardness and calcium content. Analyzing the lower pharyngeal jaw-bones we find significant differences between diet groups qualitatively resembling the differences found between specialized species. Observed differences in pharyngeal jaw expression between groups were attributable to the diet's mechanical resistance, whereas surplus calcium in the diet was not found to be of importance. The pharyngeal jaw apparatus of Midas Cichlids can be expressed plastically if stimulated mechanically during feeding. Since this trait is commonly differentiated--among other traits--between Midas Cichlid species, its plasticity

  15. Range expansion of the Mayan cichlid, cichlasoma urophthalmus (pisces, cichlidae), above 28°N in Florida

    Science.gov (United States)

    Paperno, R.; Ruiz-Carus, R.; Krebs, J.M.; McIvor, C.C.

    2008-01-01

    Introduced exotic species are a well-recognized problem in Florida's subtropical ecosystems. The presence of the exotic Mayan cichlid (Cichlasoma urophthalmus) was first confirmed in Florida in 1983, when numerous individuals were found in the northeastern Florida Bay. Since then, this species has continued to expand its range northward. The capture, beginning in October 2004 to present, of large numbers of Mayan cichlids from central Florida's east- and west-coast mangrove systems north of 28°N latitude is documented here. Mayan cichlids in a wide range of sizes (estimated ages 0-7 years) at both east- and west-coast sites were collected. In addition, macroscopic examination of gonads showed the presence of developing eggs. The occurrence of multiple age-classes, maturing individuals, cichlid nests, and juveniles, plus repeated collections over a four-year period, indicates that the Mayan cichlid is successfully reproducing and surviving the average winter temperatures in some estuarine waters in central Florida.

  16. Biological Diversity and Resilience: Lessons from the Recovery of Cichlid Species in Lake Victoria

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    Alex O. Awiti

    2011-03-01

    Full Text Available A fundamental feature of the Anthropocene is the inexorable erosion of the self-repairing capacity or adaptive renewal of natural systems because of natural perturbation, exploitation, or management failure. The concept of resilience offers a systematic framework for understanding the dynamics and variables that govern response dynamics of ecosystems. Resilience of haplochromine cichlids is assessed using limnological and biodiversity changes in Lake Victoria, the world's second largest freshwater lake, over the last five decades. The review explores the resurgence of the haplochromine cichlids using Holling's adaptive renewal cycle and attempts to illustrate how resilience-based management approaches might learn from an inadvertent management experiment. The introduction in the 1980s of the Nile perch (Lates niloticus, a fecund and voracious predator of the endemic phytoplankton feeding haplochromine cichlids, anthropogenic eutrophication, and deep water hypoxia have combined in a synergistic way to increase the vulnerability of the lake ecosystem to perturbations that were hitherto absorbed. However, the upsurge in commercial Nile perch fishing appears to be enabling the resurgence of the haplochromine cichlids. The resurgence of haplochromine cichlids is characterized by phenotypic plasticity, ecological and life history traits and demonstrates the critical role of response diversity in the maintenance of systems resilience. Resilience of the haplochromine cichlids resides in the requisite functional response diversity and habitat diversity that provide the resources for renewal and regeneration. This paper concludes that management of Nile perch fisheries and control of nutrient loading into Lake Victoria could halt or reverse eutrophication, hence offer the best promise for a diverse, productive, and resilient social-ecological system.

  17. The Integrated Genomic Architecture and Evolution of Dental Divergence in East African Cichlid Fishes (Haplochromis chilotes x H. nyererei

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    C. Darrin Hulsey

    2017-09-01

    Full Text Available The independent evolution of the two toothed jaws of cichlid fishes is thought to have promoted their unparalleled ecological divergence and species richness. However, dental divergence in cichlids could exhibit substantial genetic covariance and this could dictate how traits like tooth numbers evolve in different African Lakes and on their two jaws. To test this hypothesis, we used a hybrid mapping cross of two trophically divergent Lake Victoria species (Haplochromis chilotes × Haplochromis nyererei to examine genomic regions associated with cichlid tooth diversity. Surprisingly, a similar genomic region was found to be associated with oral jaw tooth numbers in cichlids from both Lake Malawi and Lake Victoria. Likewise, this same genomic location was associated with variation in pharyngeal jaw tooth numbers. Similar relationships between tooth numbers on the two jaws in both our Victoria hybrid population and across the phylogenetic diversity of Malawi cichlids additionally suggests that tooth numbers on the two jaws of haplochromine cichlids might generally coevolve owing to shared genetic underpinnings. Integrated, rather than independent, genomic architectures could be key to the incomparable evolutionary divergence and convergence in cichlid tooth numbers.

  18. Moralization Through Moral Shock: Exploring Emotional Antecedents to Moral Conviction.

    Science.gov (United States)

    Wisneski, Daniel C; Skitka, Linda J

    2017-02-01

    The current research tested whether exposure to disgusting images increases moral conviction and whether this happens in the presence of incidental disgust cues versus disgust cues relevant to the target of moralization. Across two studies, we exposed participants to one of the four sets of disgusting versus control images to test the moralization of abortion attitudes: pictures of aborted fetuses, animal abuse, non-harm related disgusting images, harm related disgusting images, or neutral pictures, at either sub- or supraliminal levels of awareness. Moral conviction about abortion increased (compared with control) only for participants exposed to abortion-related images at speeds slow enough to allow conscious awareness. Study 2 replicated this finding, and found that the relationship between attitudinally relevant disgust and moral conviction was mediated by disgust, and not anger or harm appraisals. Findings are discussed in terms of their relevance for intuitionist theories of morality and moral theories that emphasize harm.

  19. Kidnapping: a criminal profile of persons convicted 1979-2001.

    Science.gov (United States)

    Soothill, Keith; Francis, Brian; Ackerley, Elizabeth

    2007-01-01

    Kidnapping has been a neglected crime in criminological research. In fact, there has been a dramatic increase in the yearly numbers of police recorded kidnapping offences in England and Wales in the last 25 years, but this has not been matched by a similar increase in convictions. This study focuses on the official criminal histories of the 7042 males and 545 females who were convicted at least once for kidnapping between 1979 and 2001. Of these, 3.9% of the males and 2.6% of the females had convictions for kidnapping on more than one occasion. We examined two subgroups to ensure long observation periods for prior and subsequent convictions. Of those convicted of kidnapping in 2001, around one-half (51.1%) of the males and around one-third (36.6%) of the females had previous convictions. The previous convictions consist of a wide range of offences, with the most common being theft and violent offences. A 20-year follow-up of those convicted in 1979-81 showed that three in five males and one in three females are subsequently convicted on at least one more occasion for a standard-list offence. An examination of convictions for other offences brought to court at the same time as the kidnap offence enabled a typology of kidnaps to be proposed. Those kidnaps with co-convictions of an acquisitive nature declined over the period, whereas other types, including sexual and violent, showed rises. Changing shifts in the nature of kidnaps have important policy implications.

  20. Individuality in Fish Behavior: Ecology and Comparative Psychology

    OpenAIRE

    Budaev, Dr. Sergey; Zworykin, Dr. Dmitry

    2002-01-01

    This work is a brief review of a series of studies of the phenotypic organization and ecological significance of individual differences in fish behavior. The following species were studied: guppy Poecilia retuculata, lion-headed cichlid Steatocranus cassuarius, and the convict cichlid Archocentrus nigrofasciatum. We developed methods for the analysis of individual differences in fish behavior and studied their structure, development, and ecological and evolutionary significance.

  1. Class I mhc genes of cichlid fishes: identification, expression, and polymorphism.

    Science.gov (United States)

    Sato, A; Klein, D; Sültmann, H; Figueroa, F; O'hUigin, C; Klein, J

    1997-01-01

    Cichlid fishes of the East African Rift Valley lakes constitute an important model of adaptive radiation. Explosive speciation in the Great Lakes, in some cases as recently as 12 400 years ago, generated large species flocks that have been the focus of evolutionary studies for some time. The studies have, however, been hampered by the paucity of biochemical markers for phylogenetic reconstruction. Here, we describe a set of markers which should help to alleviate this problem. They are the class I genes of the major histocompatibility complex. We provide evidence for the existence of at least 17 class I loci in cichlid fishes, and for extensive polymorphism of three of these loci. Since the polymorphism has a trans-species character, it will be possible to use it in investigating the founding events of the individual species. The sequences of the cichlid class I fishes support the monophyly of actinopterygian fish on the one hand, and of tetrapods on the other.

  2. Retroposition of the AFC family of SINEs (short interspersed repetitive elements) before and during the adaptive radiation of cichlid fishes in Lake Malawi and related inferences about phylogeny.

    Science.gov (United States)

    Takahashi, K; Nishida, M; Yuma, M; Okada, N

    2001-01-01

    Lake Malawi is home to more than 450 species of endemic cichlids, which provide a spectacular example of adaptive radiation. To clarify the phylogenetic relationships among these fish, we examined the presence and absence of SINEs (short interspersed repetitive elements) at orthologous loci. We identified six loci at which a SINE sequence had apparently been specifically inserted by retroposition in the common ancestor of all the investigated species of endemic cichlids in Lake Malawi. At another locus, unique sharing of a SINE sequence was evident among all the investigated species of endemic non-Mbuna cichlids with the exception of Rhamphochromis sp. The relationships were in good agreement with those deduced in previous studies with various different markers, demonstrating that the SINE method is useful for the elucidation of phylogenetic relationships among cichlids in Lake Malawi. We also characterized a locus that exhibited transspecies polymorphism with respect to the presence or absence of the SINE sequence among non-Mbuna species. This result suggests that incomplete lineage sorting and/or interspecific hybridization might have occurred or be occurring among the species in this group, which might potentially cause misinterpretation of phylogenetic data, in particular when a single-locus marker, such as a sequence in the mitochondrial DNA, is used for analysis.

  3. Rapid and Parallel Adaptive Evolution of the Visual System of Neotropical Midas Cichlid Fishes.

    Science.gov (United States)

    Torres-Dowdall, Julián; Pierotti, Michele E R; Härer, Andreas; Karagic, Nidal; Woltering, Joost M; Henning, Frederico; Elmer, Kathryn R; Meyer, Axel

    2017-10-01

    Midas cichlid fish are a Central American species flock containing 13 described species that has been dated to only a few thousand years old, a historical timescale infrequently associated with speciation. Their radiation involved the colonization of several clear water crater lakes from two turbid great lakes. Therefore, Midas cichlids have been subjected to widely varying photic conditions during their radiation. Being a primary signal relay for information from the environment to the organism, the visual system is under continuing selective pressure and a prime organ system for accumulating adaptive changes during speciation, particularly in the case of dramatic shifts in photic conditions. Here, we characterize the full visual system of Midas cichlids at organismal and genetic levels, to determine what types of adaptive changes evolved within the short time span of their radiation. We show that Midas cichlids have a diverse visual system with unexpectedly high intra- and interspecific variation in color vision sensitivity and lens transmittance. Midas cichlid populations in the clear crater lakes have convergently evolved visual sensitivities shifted toward shorter wavelengths compared with the ancestral populations from the turbid great lakes. This divergence in sensitivity is driven by changes in chromophore usage, differential opsin expression, opsin coexpression, and to a lesser degree by opsin coding sequence variation. The visual system of Midas cichlids has the evolutionary capacity to rapidly integrate multiple adaptations to changing light environments. Our data may indicate that, in early stages of divergence, changes in opsin regulation could precede changes in opsin coding sequence evolution. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  4. The ecological and genetic basis of convergent thick-lipped phenotypes in cichlid fishes.

    Science.gov (United States)

    Colombo, Marco; Diepeveen, Eveline T; Muschick, Moritz; Santos, M Emilia; Indermaur, Adrian; Boileau, Nicolas; Barluenga, Marta; Salzburger, Walter

    2013-02-01

    The evolution of convergent phenotypes is one of the most interesting outcomes of replicate adaptive radiations. Remarkable cases of convergence involve the thick-lipped phenotype found across cichlid species flocks in the East African Great Lakes. Unlike most other convergent forms in cichlids, which are restricted to East Africa, the thick-lipped phenotype also occurs elsewhere, for example in the Central American Midas Cichlid assemblage. Here, we use an ecological genomic approach to study the function, the evolution and the genetic basis of this phenotype in two independent cichlid adaptive radiations on two continents. We applied phylogenetic, demographic, geometric morphometric and stomach content analyses to an African (Lobochilotes labiatus) and a Central American (Amphilophus labiatus) thick-lipped species. We found that similar morphological adaptations occur in both thick-lipped species and that the 'fleshy' lips are associated with hard-shelled prey in the form of molluscs and invertebrates. We then used comparative Illumina RNA sequencing of thick vs. normal lip tissue in East African cichlids and identified a set of 141 candidate genes that appear to be involved in the morphogenesis of this trait. A more detailed analysis of six of these genes led to three strong candidates: Actb, Cldn7 and Copb. The function of these genes can be linked to the loose connective tissue constituting the fleshy lips. Similar trends in gene expression between African and Central American thick-lipped species appear to indicate that an overlapping set of genes was independently recruited to build this particular phenotype in both lineages. © 2012 Blackwell Publishing Ltd.

  5. 41 CFR 105-74.615 - Conviction.

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Conviction. 105-74.615 Section 105-74.615 Public Contracts and Property Management Federal Property Management Regulations System...-GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 105-74.615 Conviction...

  6. Reasoning, emotions, and delusional conviction in psychosis.

    Science.gov (United States)

    Garety, Philippa A; Freeman, Daniel; Jolley, Suzanne; Dunn, Graham; Bebbington, Paul E; Fowler, David G; Kuipers, Elizabeth; Dudley, Robert

    2005-08-01

    The aim of the study was to elucidate the factors contributing to the severity and persistence of delusional conviction. One hundred participants with current delusions, recruited for a treatment trial of psychological therapy (PRP trial), were assessed at baseline on measures of reasoning, emotions, and dimensions of delusional experience. Reasoning biases (belief inflexibility, jumping to conclusions, and extreme responding) were found to be present in one half of the sample. The hypothesis was confirmed that reasoning biases would be related to delusional conviction. There was evidence that belief inflexibility mediated the relationship between jumping to conclusions and delusional conviction. Emotional states were not associated with the reasoning processes investigated. Anxiety, but not depression, made an independent contribution to delusional conviction. Copyright (c) 2005 APA, all rights reserved.

  7. Indidivual differences in the behaviour of fishes

    OpenAIRE

    Budaev, Dr. Sergey

    2000-01-01

    This is the official printed Russian summary of PhD Thesis, describing a series of studies of the phenotypic organization and ecological significance of individual differences in fish behavior. The following species were studied: guppy Poecilia retuculata, lion-headed cichlid Steatocranus cassuarius, convict cichlid Archocentrus nigrofasciatum, wrasses Symphodus ocellatus, S. tinca, and two species of sturgeons Acipenser stellatus and A. gueldenstaedti. In this Thesis, I developed methods for...

  8. Convergence of gut microbiotas in the adaptive radiations of African cichlid fishes.

    Science.gov (United States)

    Baldo, Laura; Pretus, Joan Lluís; Riera, Joan Lluís; Musilova, Zuzana; Bitja Nyom, Arnold Roger; Salzburger, Walter

    2017-09-01

    Ecoevolutionary dynamics of the gut microbiota at the macroscale level, that is, in across-species comparisons, are largely driven by ecological variables and host genotype. The repeated explosive radiations of African cichlid fishes in distinct lakes, following a dietary diversification in a context of reduced genetic diversity, provide a natural setup to explore convergence, divergence and repeatability in patterns of microbiota dynamics as a function of the host diet, phylogeny and environment. Here we characterized by 16S rRNA amplicon sequencing the gut microbiota of 29 cichlid species from two distinct lakes/radiations (Tanganyika and Barombi Mbo) and across a broad dietary and phylogenetic range. Within each lake, a significant deviation between a carnivorous and herbivorous lifestyle was found. Herbivore species were characterized by an increased bacterial taxonomic and functional diversity and converged in key compositional and functional community aspects. Despite a significant lake effect on the microbiota structure, this process has occurred with remarkable parallels in the two lakes. A metabolic signature most likely explains this trend, as indicated by a significant enrichment in herbivores/omnivores of bacterial taxa and functions associated with fiber degradation and detoxification of plant chemical compounds. Overall, compositional and functional aspects of the gut microbiota individually and altogether validate and predict main cichlid dietary habits, suggesting a fundamental role of gut bacteria in cichlid niche expansion and adaptation.

  9. Women convicted of promoting prostitution of a minor are different from women convicted of traditional sexual offenses: a brief research report.

    Science.gov (United States)

    Cortoni, Franca; Sandler, Jeffrey C; Freeman, Naomi J

    2015-06-01

    Some jurisdictions have legally decreed that certain nonsexual offenses (e.g., promoting prostitution of a minor, arson, burglary) can be considered sexual offenses. Offenders convicted of these crimes can be subjected to sexual offender-specific social control policies such as registration, as well as be included in sexual offender research such as recidivism studies. No studies, however, have systematically examined differences and similarities between this new class of sexual offenders and more traditional sexual offenders. The current study used a sample of 94 women convicted of sexual offenses to investigate whether women convicted of promoting prostitution of a minor differed on demographic and criminogenic features from those convicted of more traditional sexual offenses. Results show that women convicted of promoting prostitution offenses have criminal histories more consistent with general criminality and exhibit more general antisocial features than women convicted of traditional sexual offenses. These results support the notion that the inclusion of legally defined sexual offenders with traditional ones obscures important differences in criminogenic features among these women. © The Author(s) 2014.

  10. Decreased re-conviction rates of DUI offenders with intensive supervision and home confinement.

    Science.gov (United States)

    Barta, William D; Fisher, Virginia; Hynes, Patrick

    2017-11-01

    In some jurisdictions, persons who are convicted of driving under the influence of alcohol (DUI) are allowed to serve some portion of their prison sentence under home confinement as part of Intensive Supervision Programs (ISPs) which include pre-release psycho-education and close post-release supervision. Test the hypothesis that persons convicted of DUI offenses who have spent some portion of their sentence under home confinement, as compared to a historical comparison group, will exhibit a relatively low re-conviction rate. Using administrative data for 1,410 repeat DUI offenders (302 members of the historical comparison group, 948 ISP members, and 160 persons who appear in both groups at different points in time), with a follow-up period of up to 3 years and 10 months, a marginal Cox model was employed to compare conviction rates of persons who experienced intensive supervision and home confinement with historical comparison group members. Persons with ISP + home confinement experience a re-conviction rate that is less than half that observed in the comparison group. Age, ethnicity (white vs. non-white), and gender are also significant predictors of re-conviction. Home confinement, in conjunction with psycho-education and other program elements, is one means of reducing the costs of incarceration. The results of this study suggest that, in addition to cost savings, states may realize a public safety benefit in the form of a reduction in DUI offense rates.

  11. Evolutionary history of the Lake Tanganyika cichlid tribe Lamprologini (Teleostei: Perciformes) derived from mitochondrial and nuclear DNA data

    OpenAIRE

    Sturmbauer, Christian; Salzburger, Walter; Duftner, Nina; Schelly, Robert; Koblmueller, Stephan

    2010-01-01

    Lake Tanganyika comprises a cichlid species flock with substrate-breeding and mouthbrooding lineages. While sexual selection via mate choice on male mating color is thought to boost speciation rates in mouthbrooding cichlids, this is not the case in substrate-breeding lamprologines, which mostly form stable pairs and lack sexual dichromatism. We present a comprehensive reconstruction of the evolution of the cichlid tribe Lamprologini, based upon mtDNA sequences and multilocus nuclear DNA (AFL...

  12. Prison and young convicts

    Directory of Open Access Journals (Sweden)

    Krzysztof Linowski

    2013-06-01

    Full Text Available Penalty, including imprisonment comprises one of the basic forms of reaction to crime. It differs from other possible penalties in the degree of discomfort and in the legal consequences. There are also different goals in case of criminal penalty as a legal and social consequence of a crime or misconduct. Imprisonment aims at taking different actions which consequently, should lead to the situation where the criminal does not return to committing crimes. It is so called penitentiary rehabilitation which is a multidimensional phenomenon and it should be considered from the modern society point of view. Its range includes correction of inadequate individual’s behavior and his or her adaptation of norms and values shared by the general public, as well as taking and being persistent in the process of designing oneself, own personality and consistent implementation of the self- vision in the future, organized hierarchically for the given time periods. Therefore, different means and action are taken under the implementation of imprisonment. Moreover, convicted prisoners are divided into different groups in penitentiaries. One of the groups is the group of young convicts. The goal of this article is to examine and describe the opinion of the young convicts on the penitentiary as a penal and rehabilitation institution. To perform the study, sixty young convicts were selected. In the test method, the diagnostic survey was applied. The original authoring questionnaire was used in the study. The study was performed in the Penitentiary in Radom, in December 2012.

  13. Success of cuckoo catfish brood parasitism reflects coevolutionary history and individual experience of their cichlid hosts

    Science.gov (United States)

    Polačik, Matej; Smith, Carl; Honza, Marcel; Reichard, Martin

    2018-01-01

    Obligate brood parasites manipulate other species into raising their offspring. Avian and insect brood parasitic systems demonstrate how interacting species engage in reciprocal coevolutionary arms races through behavioral and morphological adaptations and counteradaptations. Mouthbrooding cichlid fishes are renowned for their remarkable evolutionary radiations and complex behaviors. In Lake Tanganyika, mouthbrooding cichlids are exploited by the only obligate nonavian vertebrate brood parasite, the cuckoo catfish Synodontis multipunctatus. We show that coevolutionary history and individual learning both have a major impact on the success of cuckoo catfish parasitism between coevolved sympatric and evolutionarily naïve allopatric cichlid species. The rate of cuckoo catfish parasitism in coevolved Tanganyikan hosts was 3 to 11 times lower than in evolutionarily naïve cichlids. Moreover, using experimental infections, we demonstrate that parasite egg rejection in sympatric hosts was much higher, leading to seven times greater parasite survival in evolutionarily naïve than sympatric hosts. However, a high rejection frequency of parasitic catfish eggs by coevolved sympatric hosts came at a cost of increased rejection of their own eggs. A significant cost of catfish parasitism was universal, except for coevolved sympatric cichlid species with previous experience of catfish parasitism, demonstrating that learning and individual experience both contribute to a successful host response.

  14. THE BEHAVIOUR AND BRAIN FUNCTION OF THE CICHLID FISH ...

    African Journals Online (AJOL)

    male and female conspecifics on a visual basis. ... Brain Function, Teleost, telencephalon, Cichlid fish behaviour, limbic system, hippocampus. ...... The effects of forebrain ablations on the behaviour of H. philander cannot be satisfactorily.

  15. New record of a fossil haplotilapiine cichlid from Central Kenya

    Directory of Open Access Journals (Sweden)

    Stefanie B. R. Penk

    2015-11-01

    Full Text Available African freshwater cichlids (Cichlidae: Pseudocrenilabrinae are well known for their exceptionally great diversity and their capability of rapid speciation as well as diverse adaptations. The extant Pseudocrenilabrinae can be grouped into 27 tribes, with more than 2000 species harbored in the Great Lakes and surrounding water bodies of the East African Rift System. However, this unique diversity is not reflected in the fossil record because fossil cichlids were predominantly reported based on isolated teeth and bones. Moreover, the few articulated specimens that are known have not been analyzed sufficiently with regard to their systematic position due to lack of comparative material. Here we present a new extraordinarily well-preserved cichlid fish fossil from the Middle Miocene (c. 12.5 Ma Lagerstaette Kabchore, which was recovered during recent fieldwork in the Tugen Hills (Baringo County, Central Kenya Rift. Based on the evidence of tricuspid teeth, the Kabchore fossil can be assigned to the subclade of the Haplotilapiines within the Pseudocrenilabrinae. The multivariate analysis of a large meristic data set, derived from 1014 extant specimens (encompassing all main lineages of Haplotilapiines and usage of available osteological data suggest that this fossil is most likely related to one of the three haplotilapiine tribes Tilapiini, Haplochromini or Oreochromini. Moreover, the fossil specimen closely resembles the extinct cichlid Oreochromis martyni (Van Couvering, 1982, previously described as species of Sarotherodon from the Middle Miocene alkaline Kapkiamu Lake in the Tugen Hills. The analysis of the greatly preserved fossil fish specimen from Kabchore definitely supplements the fragmentary fossil record of Africa’s Cichlidae and will afford new insights into its evolutionary history. We also expect that this fossil will be useful as calibration point for new divergence-time estimates.

  16. Ancestral and derived attributes of the dlx gene repertoire, cluster structure and expression patterns in an African cichlid fish

    Directory of Open Access Journals (Sweden)

    Renz Adina J

    2011-01-01

    Full Text Available Abstract Background Cichlid fishes have undergone rapid, expansive evolutionary radiations that are manifested in the diversification of their trophic morphologies, tooth patterning and coloration. Understanding the molecular mechanisms that underlie the cichlids' unique patterns of evolution requires a thorough examination of genes that pattern the neural crest, from which these diverse phenotypes are derived. Among those genes, the homeobox-containing Dlx gene family is of particular interest since it is involved in the patterning of the brain, jaws and teeth. Results In this study, we characterized the dlx genes of an African cichlid fish, Astatotilapia burtoni, to provide a baseline to later allow cross-species comparison within Cichlidae. We identified seven dlx paralogs (dlx1a, -2a, -4a, -3b, -4b, -5a and -6a, whose orthologies were validated with molecular phylogenetic trees. The intergenic regions of three dlx gene clusters (dlx1a-2a, dlx3b-4b, and dlx5a-6a were amplified with long PCR. Intensive cross-species comparison revealed a number of conserved non-coding elements (CNEs that are shared with other percomorph fishes. This analysis highlighted additional lineage-specific gains/losses of CNEs in different teleost fish lineages and a novel CNE that had previously not been identified. Our gene expression analyses revealed overlapping but distinct expression of dlx orthologs in the developing brain and pharyngeal arches. Notably, four of the seven A. burtoni dlx genes, dlx2a, dlx3b, dlx4a and dlx5a, were expressed in the developing pharyngeal teeth. Conclusion This comparative study of the dlx genes of A. burtoni has deepened our knowledge of the diversity of the Dlx gene family, in terms of gene repertoire, expression patterns and non-coding elements. We have identified possible cichlid lineage-specific changes, including losses of a subset of dlx expression domains in the pharyngeal teeth, which will be the targets of future functional

  17. Discovery of the invasive Mayan Cichlid fish "Cichlasoma" urophthalmus (Günther 1862) in Thailand, with comments on other introductions and potential impacts

    Science.gov (United States)

    Nico, Leo G.; Beamish, William H.; Musikasinthorn, Prachya

    2007-01-01

    We report on the occurrence and possible establishment of a non-native cichlid fish in a brackish-water system in the lower Chao Phraya River delta region, Thailand. Although, the possibility of some degree of introgressive hybridization can not be ruled out, Thailand specimens agree best with Mayan Cichlid “Cichlasoma” urophthalmus (Günther 1862). Our collections represent the first records of this New World, highly-invasive, euryhaline fish from Thailand and coincides with recent collections from Singapore. Positive identification of specimens as “C.” urophthalmus requires caution due to the diversity of the Cichlidae (>1,300 species), widespread introduction of many family members, variation within species, extensive interspecific overlap in characters, and proliferation of artificial cichlid hybrids (e.g., Flowerhorns). We first became aware of the Thailand population in 2005 when “C.” urophthalmus began appearing in the catches of local fishermen. We visited the site in November 2006 and obtained and examined voucher specimens. The abundance and wide size range of juveniles and adults in local ponds and an adjacent canal is evidence of natural reproduction. Because water bodies throughout the Chao Phraya delta are interconnected and subject to flooding, it is likely that “C.” urophthalmus is already established and is dispersing, but surveys and monitoring are needed to determine their exact geographic range. The Thailand population is compared to “C.” urophthalmus introduced into Florida (USA). Based on what is known about Florida “C.” urophthalmus, it is predicted that this cichlid will further invade coastal and inland waters in Thailand and elsewhere in Southeast Asia. This cichlid has a long history in the aquarium trade in Europe. However, there are no records from the wild in European waters and, because of the colder climate, the possibility of establishment in that region is relatively low.

  18. 48 CFR 52.222-3 - Convict Labor.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Convict Labor. 52.222-3... Labor. As prescribed in 22.202, insert the following clause: Convict Labor (JUN 2003) (a) Except as... union central bodies or similar labor union organizations have been consulted; (iii) Such paid...

  19. Genetic sex determination in Astatotilapia calliptera, a prototype species for the Lake Malawi cichlid radiation

    Science.gov (United States)

    Peterson, Erin N.; Cline, Maggie E.; Moore, Emily C.; Roberts, Natalie B.; Roberts, Reade B.

    2017-06-01

    East African cichlids display extensive variation in sex determination systems. The species Astatotilapia calliptera is one of the few cichlids that reside both in Lake Malawi and in surrounding waterways. A. calliptera is of interest in evolutionary studies as a putative immediate outgroup species for the Lake Malawi species flock and possibly as a prototype ancestor-like species for the radiation. Here, we use linkage mapping to test association of sex in A. calliptera with loci that have been previously associated with genetic sex determination in East African cichlid species. We identify a male heterogametic XY system segregating at linkage group (LG) 7 in an A. calliptera line that originated from Lake Malawi, at a locus previously shown to act as an XY sex determination system in multiple species of Lake Malawi cichlids. Significant association of genetic markers and sex produce a broad genetic interval of approximately 26 megabases (Mb) using the Nile tilapia genome to orient markers; however, we note that the marker with the strongest association with sex is near a gene that acts as a master sex determiner in other fish species. We demonstrate that alleles of the marker are perfectly associated with sex in Metriaclima mbenjii, a species from the rock-dwelling clade of Lake Malawi. While we do not rule out the possibility of other sex determination loci in A. calliptera, this study provides a foundation for fine mapping of the cichlid sex determination gene on LG7 and evolutionary context regarding the origin and persistence of the LG7 XY across diverse, rapidly evolving lineages.

  20. B chromosomes have a functional effect on female sex determination in Lake Victoria cichlid fishes.

    Directory of Open Access Journals (Sweden)

    Kohta Yoshida

    2011-08-01

    Full Text Available The endemic cichlid fishes in Lake Victoria are a model system for speciation through adaptive radiation. Although the evolution of the sex-determination system may also play a role in speciation, little is known about the sex-determination system of Lake Victoria cichlids. To understand the evolution of the sex-determination system in these fish, we performed cytogenetic analysis in 11 cichlid species from Lake Victoria. B chromosomes, which are present in addition to standard chromosomes, were found at a high prevalence rate (85% in these cichlids. In one species, B chromosomes were female-specific. Cross-breeding using females with and without the B chromosomes demonstrated that the presence of the B chromosomes leads to a female-biased sex ratio in this species. Although B chromosomes were believed to be selfish genetic elements with little effect on phenotype and to lack protein-coding genes, the present study provides evidence that B chromosomes have a functional effect on female sex determination. FISH analysis using a BAC clone containing B chromosome DNA suggested that the B chromosomes are derived from sex chromosomes. Determination of the nucleotide sequences of this clone (104.5 kb revealed the presence of several protein-coding genes in the B chromosome, suggesting that B chromosomes have the potential to contain functional genes. Because some sex chromosomes in amphibians and arthropods are thought to be derived from B chromosomes, the B chromosomes in Lake Victoria cichlids may represent an evolutionary transition toward the generation of sex chromosomes.

  1. BioCichlid: central dogma-based 3D visualization system of time-course microarray data on a hierarchical biological network.

    Science.gov (United States)

    Ishiwata, Ryosuke R; Morioka, Masaki S; Ogishima, Soichi; Tanaka, Hiroshi

    2009-02-15

    BioCichlid is a 3D visualization system of time-course microarray data on molecular networks, aiming at interpretation of gene expression data by transcriptional relationships based on the central dogma with physical and genetic interactions. BioCichlid visualizes both physical (protein) and genetic (regulatory) network layers, and provides animation of time-course gene expression data on the genetic network layer. Transcriptional regulations are represented to bridge the physical network (transcription factors) and genetic network (regulated genes) layers, thus integrating promoter analysis into the pathway mapping. BioCichlid enhances the interpretation of microarray data and allows for revealing the underlying mechanisms causing differential gene expressions. BioCichlid is freely available and can be accessed at http://newton.tmd.ac.jp/. Source codes for both biocichlid server and client are also available.

  2. [Feeding habits of cichlid species (Perciformes: Cichlidae) in Caobas lake, Quintana Roo, Mexico].

    Science.gov (United States)

    Valtierra-Vega, M T; Schmitter-Soto, J J

    2000-01-01

    Feeding habits of seven cichlid species (Archocentrus octofasciatus, A. spilurus, "Cichlasoma" robertsoni, "C." synspilum, "C." urophthalmus, Petenia splendida, Thorichthys meeki) in Lake Caobas, southern Yucatan Peninsula, were studied. Samples were taken with enclosure and cast nets during the dry and rainy seasons of 1995 (day and night). The environment was characterized by measuring temperature, conductivity and pH. All individuals were below 41 mm SL (N = 281). Frequency of occurrence and prey abundance were analyzed. Main prey items were chironomids, mites, copepods, cladocerans, and ostracods. The cichlids fed mainly on zooplankton, with the partial exceptions of P. splendida (piscivore), "C." synspilum and A. spilurus (herbivores). A cluster analysis showed that the most similar trophic spectra were those of T. meeki, "C." robertsoni and "C." salvini, which were also the least diverse. "C." synspilum and A. spilurus had an intermediate distance between their diets and those of other species. The species with the most distinctive feeding composition were P. splendida (with the most diverse and equitable diet) and the omnivore A. octofasciatus (whose diet was the richest one). T. meeki showed quantitative diel, ontogenetic, and seasonal diet changes, but none between sexes. "C." robertsoni, "C." salvini and "C." synspilum differ in food habits in Caobas and in other localities, a fact that underscores the trophic adaptability of cichlids. Trophic overlap between cichlids in Caobas could imply absence of competition, perhaps because resources are abundant in the ecosystem.

  3. The behaviour and brain function of the Cichlid fish ...

    African Journals Online (AJOL)

    ... the teleost forebrain houses a primitive limbic system the main functions of which would be general arousal and the selection of appropriate responses to the incoming external and endogenous (motivational) stimuli. Keywords: Brain Function, Teleost, telencephalon, Cichlid fish behaviour, limbic system, hippocampus ...

  4. Adaptive responses to environmental changes in Lake Victoria cichlids

    NARCIS (Netherlands)

    Rijssel, Jacobus Cornelis van (Jacco)

    2014-01-01

    Lake Victoria cichlids show the fastest vertebrate adaptive radiation known which is why they function as a model organism to study evolution. In the past 40 years, Lake Victoria experienced severe environmental changes including the boom of the introduced, predatory Nile perch and eutrophication.

  5. 8 CFR 1003.41 - Evidence of criminal conviction.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Evidence of criminal conviction. 1003.41 Section 1003.41 Aliens and Nationality EXECUTIVE OFFICE FOR IMMIGRATION REVIEW, DEPARTMENT OF JUSTICE... that indicates the existence of a conviction; (4) Minutes of a court proceeding or a transcript of a...

  6. Brain structure evolution in a basal vertebrate clade: evidence from phylogenetic comparative analysis of cichlid fishes

    Directory of Open Access Journals (Sweden)

    Kolm Niclas

    2009-09-01

    structures are evolving in a modular fashion, with a small but non-negligible influence of concerted evolution in cichlid fishes. Interestingly, one of the structures presenting distinct evolutionary patterns within cichlids, the olfactory bulbs, has also been shown to evolve differently from other structures in mammals. Hence, our results for a basal vertebrate clade also point towards a conserved developmental plan for all vertebrates.

  7. Adolescent Substance Misusers with and without Delinquency: Death, Mental and Physical Disorders, and Criminal Convictions from Age 21 to 45.

    Science.gov (United States)

    Larm, Peter; Silva, Teresa C; Hodgins, Sheilagh

    2015-12-01

    Little is known about adult outcomes of males who as adolescents sought treatment for alcohol misuse or drug use, and who additionally were engaging or not engaging in other forms of delinquency. Since the rates of negative outcomes vary in the general population, the study determined whether the sub-groups of clinic attendees fared differently as compared to males of the same age who had not sought treatment for substance misuse from age 21 to 45. Adolescent males who consulted the only substance misuse clinic in a Swedish city between 1968 and 1971 were divided into four groups: ALCOHOL no drug use, no criminal offending (n=52); ALCOHOL+D no drug use, plus criminal offending (n=105); DRUG use, no criminal offending (n=92); and DRUG+D plus criminal offending (n=474). These four groups were compared to a general population sample (GP) of males matched on age and birthplace, who did not seek treatment for SM in adolescence. National Swedish registers provided data on death, hospitalizations for substance misuse (SM), mental and physical disorders, and criminal convictions. Compared to the GP, and after controlling for co-occurring adult outcomes, ALCOHOL showed elevated risks for SM hospitalization and convictions for violent crimes, and DRUG showed elevated risks for SM hospitalization, convictions for non-violent crimes, and hospitalization for psychosis. ALCOHOL+D and DRUG+D showed increased risk for SM hospitalization, violent and non-violent convictions, and DRUG+D additionally, for death, and hospitalizations for psychosis and physical illness. Misuse of alcohol without drug use or other delinquency in adolescence was associated with increased risk for convictions for violent crimes during the subsequent 25 years, in addition to SM, while adolescent drug use without other forms of delinquency was associated with increased risks for convictions for non-violent crimes, hospitalizations for SM, and non-affective psychosis. Cannabis use, with and without

  8. Successful Conviction of Intoxicated Drivers at a Level I Trauma Center

    Directory of Open Access Journals (Sweden)

    James F. Holmes

    2014-07-01

    Full Text Available Introduction: Conviction rates for drivers driving under the influence (DUI and in motor vehicle collisions (MVC presenting to trauma centers are based primarily on data from the 1990s. Our goal was to identify DUI conviction rates of intoxicated drivers in MVCs presenting to a trauma center and to identify factors associated with the failure to obtain a DUI conviction. Methods: Retrospective study of adults (>18 years presenting to a trauma center emergency department (ED in 2007. Eligible subjects were drivers involved in a MVC with an ED blood alcohol level (BAL ≥ 80mg/dL. Subjects were matched to their Department of Motor Vehicle (DMV records to identify DUI convictions from the collision, the legal blood alcohol concentration (BAC, and arresting officer’s impression of the driver’s sobriety. We entered potential variables predictive of failure to obtain a DUI conviction into a regression model. Results: The 241 included subjects had a mean age of 34.1 ± 12.8 years, and 185 (77% were male. Successful DUI convictions occurred in 142/241 (58.9%, 95% CI 52.4, 65.2% subjects. In a regression model, Injury Severity Score > 15 (odds ratio = 2.70 (95% CI 1.06, 6.85 and a lower ED BAL from 80 to 200mg/dL (odds ratio = 5.03 (95% CI 1.69, 14.9 were independently associated with a failure to obtain a DUI conviction. Conclusion: Slightly more than half of drivers who present to an ED after a MVC receive a DUI conviction. The most severely injured subjects and those with lower BALs are least likely to be convicted of a DUI.

  9. Continental cichlid radiations: functional diversity reveals the role of changing ecological opportunity in the Neotropics.

    Science.gov (United States)

    Arbour, Jessica Hilary; López-Fernández, Hernán

    2016-08-17

    Adaptive radiations have been hypothesized to contribute broadly to the diversity of organisms. Models of adaptive radiation predict that ecological opportunity and ecological release, the availability of empty ecological niches and the response by adapting lineages to occupy them, respectively, drive patterns of phenotypic and lineage diversification. Adaptive radiations driven by 'ecological opportunity' are well established in island systems; it is less clear if ecological opportunity influences continent-wide diversification. We use Neotropical cichlid fishes to test if variation in rates of functional evolution is consistent with changing ecological opportunity. Across a functional morphological axis associated with ram-suction feeding traits, evolutionary rates declined through time as lineages diversified in South America. Evolutionary rates of ram-suction functional morphology also appear to have accelerated as cichlids colonized Central America and encountered renewed opportunity. Our results suggest that ecological opportunity may play an important role in shaping patterns of morphological diversity of even broadly distributed lineages like Neotropical cichlids. © 2016 The Author(s).

  10. Mechanisms of rapid sympatric speciation by sex reversal and sexual selection in cichlid fish.

    Science.gov (United States)

    Lande, R; Seehausen, O; van Alphen, J J

    2001-01-01

    Mechanisms of speciation in cichlid fish were investigated by analyzing population genetic models of sexual selection on sex-determining genes associated with color polymorphisms. The models are based on a combination of laboratory experiments and field observations on the ecology, male and female mating behavior, and inheritance of sex-determination and color polymorphisms. The models explain why sex-reversal genes that change males into females tend to be X-linked and associated with novel colors, using the hypothesis of restricted recombination on the sex chromosomes, as suggested by previous theory on the evolution of recombination. The models reveal multiple pathways for rapid sympatric speciation through the origin of novel color morphs with strong assortative mating that incorporate both sex-reversal and suppressor genes. Despite the lack of geographic isolation or ecological differentiation, the new species coexists with the ancestral species either temporarily or indefinitely. These results may help to explain different patterns and rates of speciation among groups of cichlids, in particular the explosive diversification of rock-dwelling haplochromine cichlids.

  11. Species-specific differences in adaptive phenotypic plasticity in an ecologically relevant trophic trait: hypertrophic lips in Midas cichlid fishes.

    Science.gov (United States)

    Machado-Schiaffino, Gonzalo; Henning, Frederico; Meyer, Axel

    2014-07-01

    The spectacular species richness of cichlids and their diversity in morphology, coloration, and behavior have made them an ideal model for the study of speciation and adaptive evolution. Hypertrophic lips evolved repeatedly and independently in African and Neotropical cichlid radiations. Cichlids with hypertrophic lips forage predominantly in rocky crevices and it has been hypothesized that mechanical stress caused by friction could result in larger lips through phenotypic plasticity. To test the influence of the environment on the size and development of lips, we conducted a series of breeding and feeding experiments on Midas cichlids. Full-sibs of Amphilophus labiatus (thick-lipped) and Amphilophus citrinellus (thin-lipped) each were split into a control group which was fed food from the water column and a treatment group whose food was fixed to substrates. We found strong evidence for phenotypic plasticity on lip area in the thick-lipped species, but not in the thin-lipped species. Intermediate phenotypic values were observed in hybrids from thick- and thin-lipped species reared under "control" conditions. Thus, both a genetic, but also a phenotypic plastic component is involved in the development of hypertrophic lips in Neotropical cichlids. Moreover, species-specific adaptive phenotypic plasticity was found, suggesting that plasticity is selected for in recent thick-lipped species. © 2014 The Author(s). Evolution © 2014 The Society for the Study of Evolution.

  12. Race, law, and health: Examination of 'Stand Your Ground' and defendant convictions in Florida.

    Science.gov (United States)

    Ackermann, Nicole; Goodman, Melody S; Gilbert, Keon; Arroyo-Johnson, Cassandra; Pagano, Marcello

    2015-10-01

    Previous analyses of Stand Your Ground (SYG) cases have been primarily descriptive. We examine the relationship between race of the victim and conviction of the defendant in SYG cases in Florida from 2005 to 2013. Using a regression analytic approach, we allow for simultaneous examination of multiple factors to better understand existing interrelationships. Data was obtained from the Tampa Bay Times SYG database (237 cases) which was supplemented with available online court documents and/or news reports. After excluding cases which were, still pending as of January 2015; had multiple outcomes (because of multiple suspects); and missing information on race of victim and weapon of victim, our final analytic sample has 204 cases. We chose whether the case resulted in a conviction as the outcome. We develop logistic regression models using significant bivariate predictors as candidates. These include race of the victim (White, non-White), whether the defendant could have retreated from the situation, whether the defendant pursued the victim, if the victim was unarmed, and who was the initiator of the confrontation. We find race of the victim to be a significant predictor of case outcome in this data set. After controlling for other variables, the defendant is two times (OR = 2.1, 95% CI [1.07, 4.10]) more likely to be convicted in a case that involves White victims compared to those involving non-White victims. Our results depict a disturbing message: SYG legislation in Florida has a quantifiable racial bias that reveals a leniency in convictions if the victim is non-White, which provides evidence towards unequal treatment under the law. Rather than attempting to hide the outcomes of these laws, as was done in Florida, other states with SYG laws should carry out similar analyses to see if their manifestations are the same as those in Florida, and all should remediate any injustices found. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. Embryonic and larval development in the Midas cichlid fish species flock (Amphilophus spp.): a new evo-devo model for the investigation of adaptive novelties and species differences.

    Science.gov (United States)

    Kratochwil, Claudius F; Sefton, Maggie M; Meyer, Axel

    2015-02-26

    Central American crater lake cichlid fish of the Midas species complex (Amphilophus spp.) are a model system for sympatric speciation and fast ecological diversification and specialization. Midas cichlids have been intensively analyzed from an ecological and morphological perspective. Genomic resources such as transcriptomic and genomic data sets, and a high-quality draft genome are available now. Many ecologically relevant species-specific traits and differences such as pigmentation and cranial morphology arise during development. Detailed descriptions of the early development of the Midas cichlid in particular, will help to investigate the ontogeny of species differences and adaptations. We describe the embryonic and larval development of the crater lake cichlid, Amphilophus xiloaensis, until seven days after fertilization. Similar to previous studies on teleost development, we describe six periods of embryogenesis - the zygote, cleavage, blastula, gastrula, segmentation, and post-hatching period. Furthermore, we define homologous stages to well-described teleost models such as medaka and zebrafish, as well as other cichlid species such as the Nile tilapia and the South American cichlid Cichlasoma dimerus. Key morphological differences between the embryos of Midas cichlids and other teleosts are highlighted and discussed, including the presence of adhesive glands and different early chromatophore patterns, as well as variation in developmental timing. The developmental staging of the Midas cichlid will aid researchers in the comparative investigation of teleost ontogenies. It will facilitate comparative developmental biological studies of Neotropical and African cichlid fish in particular. In the past, the species flocks of the African Great Lakes have received the most attention from researchers, but some lineages of the 300-400 species of Central American lakes are fascinating model systems for adaptive radiation and rapid phenotypic evolution. The availability

  14. A hybrid genetic linkage map of two ecologically and morphologically divergent Midas cichlid fishes (Amphilophus spp.) obtained by massively parallel DNA sequencing (ddRADSeq).

    Science.gov (United States)

    Recknagel, Hans; Elmer, Kathryn R; Meyer, Axel

    2013-01-01

    Cichlid fishes are an excellent model system for studying speciation and the formation of adaptive radiations because of their tremendous species richness and astonishing phenotypic diversity. Most research has focused on African rift lake fishes, although Neotropical cichlid species display much variability as well. Almost one dozen species of the Midas cichlid species complex (Amphilophus spp.) have been described so far and have formed repeated adaptive radiations in several Nicaraguan crater lakes. Here we apply double-digest restriction-site associated DNA sequencing to obtain a high-density linkage map of an interspecific cross between the benthic Amphilophus astorquii and the limnetic Amphilophus zaliosus, which are sympatric species endemic to Crater Lake Apoyo, Nicaragua. A total of 755 RAD markers were genotyped in 343 F(2) hybrids. The map resolved 25 linkage groups and spans a total distance of 1427 cM with an average marker spacing distance of 1.95 cM, almost matching the total number of chromosomes (n = 24) in these species. Regions of segregation distortion were identified in five linkage groups. Based on the pedigree of parents to F(2) offspring, we calculated a genome-wide mutation rate of 6.6 × 10(-8) mutations per nucleotide per generation. This genetic map will facilitate the mapping of ecomorphologically relevant adaptive traits in the repeated phenotypes that evolved within the Midas cichlid lineage and, as the first linkage map of a Neotropical cichlid, facilitate comparative genomic analyses between African cichlids, Neotropical cichlids and other teleost fishes.

  15. The genetic and developmental basis of an exaggerated craniofacial trait in East African cichlids.

    Science.gov (United States)

    Concannon, Moira R; Albertson, R Craig

    2015-12-01

    The evolution of an exaggerated trait can lead to a novel morphology that allows organisms to exploit new niches. The molecular bases of such phenotypes can reveal insights into the evolution of unique traits. Here, we investigate a rare morphological innovation in modern haplochromine cichlids, a flap of fibrous tissue that causes a pronounced projection of the snout, which is limited to a single genus (Labeotropheus) of Lake Malawi cichlids. We compare flap size in our focal species L. fuelleborni (LF) to homologous landmarks in other closely related cichlid species that show a range of ecological overlap with LF, and demonstrate that variation in flap size is discontinuous among Malawi cichlid species. We demonstrate further that flap development in LF begins at early juvenile stages, and scales allometrically with body size. We then used an F2 hybrid mapping population, derived via crossing LF to a close ecological competitor that lacks this trait, Tropheops "red cheek" (TRC), to identify quantitative trait loci (QTL) that underlie flap development. In all, we identified four loci associated with variation in flap size, and for each the LF allele contributed to a larger flap. We next cross-referenced our QTL map with population genomic data, comparing natural populations of LF and TRC, to identify divergent polymorphisms within each QTL interval. Candidate genes for flap development are discussed. Together, these data indicate a relatively simple and tractable genetic basis for this morphological innovation, which is consistent with its apparently sudden and saltatory evolutionary history. J. Exp. Zool. (Mol. Dev. Evol.) 324B: 662-670, 2015. © 2015 Wiley Periodicals, Inc. © 2015 Wiley Periodicals, Inc.

  16. Reticulate phylogeny of gastropod-shell-breeding cichlids from Lake Tanganyika – the result of repeated introgressive hybridization

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    Blanc Michel

    2007-01-01

    Full Text Available Abstract Background The tribe Lamprologini is the major substrate breeding lineage of Lake Tanganyika's cichlid species flock. Among several different life history strategies found in lamprologines, the adaptation to live and breed in empty gastropod shells is probably the most peculiar. Although shell-breeding arose several times in the evolutionary history of the lamprologines, all obligatory and most facultative shell-breeders belong to the so called "ossified group", a monophyletic lineage within the lamprologine cichlids. Since their distinctive life style enables these species to live and breed in closest vicinity, we hypothesized that these cichlids might be particularly prone to accidental hybridization, and that introgression might have affected the evolutionary history of this cichlid lineage. Results Our analyses revealed discrepancies between phylogenetic hypotheses based on mitochondrial and nuclear (AFLP data. While the nuclear phylogeny was congruent with morphological, behavioral and ecological characteristics, several species – usually highly specialized shell-breeders – were placed at contradicting positions in the mitochondrial phylogeny. The discordant phylogenies strongly suggest repeated incidents of introgressive hybridization between several distantly related shell-breeding species, which reticulated the phylogeny of this group of cichlids. Long interior branches and high bootstrap support for many interior nodes in the mitochondrial phylogeny argue against a major effect of ancient incomplete lineage sorting on the phylogenetic reconstruction. Moreover, we provide morphological and genetic (mtDNA and microsatellites evidence for ongoing hybridization among distantly related shell-breeders. In these cases, the territorial males of the inferred paternal species are too large to enter the shells of their mate, such that they have to release their sperm over the entrance of the shell to fertilize the eggs. With sperm

  17. Are sympatrically speciating Midas cichlid fish special? Patterns of morphological and genetic variation in the closely related species Archocentrus centrarchus.

    Science.gov (United States)

    Fruciano, Carmelo; Franchini, Paolo; Raffini, Francesca; Fan, Shaohua; Meyer, Axel

    2016-06-01

    Established empirical cases of sympatric speciation are scarce, although there is an increasing consensus that sympatric speciation might be more common than previously thought. Midas cichlid fish are one of the few substantiated cases of sympatric speciation, and they formed repeated radiations in crater lakes. In contrast, in the same environment, such radiation patterns have not been observed in other species of cichlids and other families of fish. We analyze morphological and genetic variation in a cichlid species (Archocentrus centrarchus) that co-inhabits several crater lakes with the Midas species complex. In particular, we analyze variation in body and pharyngeal jaw shape (two ecologically important traits in sympatrically divergent Midas cichlids) and relate that to genetic variation in mitochondrial control region and microsatellites. Using these four datasets, we analyze variation between and within two Nicaraguan lakes: a crater lake where multiple Midas cichlids have been described and a lake where the source population lives. We do not observe any within-lake clustering consistent across morphological traits and genetic markers, suggesting the absence of sympatric divergence in A. centrarchus. Genetic differentiation between lakes was low and morphological divergence absent. Such morphological similarity between lakes is found not only in average morphology, but also when analyzing covariation between traits and degree of morphospace occupation. A combined analysis of the mitochondrial control region in A. centrarchus and Midas cichlids suggests that a difference between lineages in the timing of crater lake colonization cannot be invoked as an explanation for the difference in their levels of diversification. In light of our results, A. centrarchus represents the ideal candidate to study the genomic differences between these two lineages that might explain why some lineages are more likely to speciate and diverge in sympatry than others.

  18. 22 CFR 51.61 - Denial of passports to certain convicted drug traffickers.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Denial of passports to certain convicted drug... Denial, Revocation, and Restriction of Passports § 51.61 Denial of passports to certain convicted drug... felony conviction for a Federal or state drug offense, if the individual used a U.S. passport or...

  19. Not a simple case - A first comprehensive phylogenetic hypothesis for the Midas cichlid complex in Nicaragua (Teleostei: Cichlidae: Amphilophus).

    Science.gov (United States)

    Geiger, Matthias F; McCrary, Jeffrey K; Schliewen, Ulrich K

    2010-09-01

    Nicaraguan Midas cichlids from crater lakes have recently attracted attention as potential model systems for speciation research, but no attempt has been made to comprehensively reconstruct phylogenetic relationships of this highly diverse and recently evolved species complex. We present a first AFLP (2793 loci) and mtDNA based phylogenetic hypothesis including all described and several undescribed species from six crater lakes (Apoyeque, Apoyo, Asososca Leon, Masaya, Tiscapa and Xiloá), the two great Lakes Managua and Nicaragua and the San Juan River. Our analyses demonstrate that the relationships between the Midas cichlid members are complex, and that phylogenetic information from different markers and methods do not always yield congruent results. Nevertheless, monophyly support for crater lake assemblages from Lakes Apoyeque, Apoyo, A. Leon is high as compared to those from L. Xiloá indicating occurrence of sympatric speciation. Further, we demonstrate that a 'three species' concept for the Midas cichlid complex is inapplicable and consequently that an individualized and voucher based approach in speciation research of the Midas cichlid complex is necessary at least as long as there is no comprehensive revision of the species complex available. Copyright 2010 Elsevier Inc. All rights reserved.

  20. A novel molecular marker for the study of Neotropical cichlid phylogeny.

    Science.gov (United States)

    Fabrin, T M C; Gasques, L S; Prioli, S M A P; Prioli, A J

    2015-12-22

    The use of molecular markers has contributed to phylogeny and to the reconstruction of species' evolutionary history. Each region of the genome has different evolution rates, which may or may not identify phylogenetic signal at different levels. Therefore, it is important to assess new molecular markers that can be used for phylogenetic reconstruction. Regions that may be associated with species characteristics and are subject to selective pressure, such as opsin genes, which encode proteins related to the visual system and are widely expressed by Cichlidae family members, are interesting. Our aim was to identify a new nuclear molecular marker that could establish the phylogeny of Neotropical cichlids and is potentially correlated with the visual system. We used Bayesian inference and maximum likelihood analysis to support the use of the nuclear opsin LWS gene in the phylogeny of eight Neotropical cichlid species. Their use concatenated to the mitochondrial gene COI was also tested. The LWS gene fragment comprised the exon 2-4 region, including the introns. The LWS gene provided good support for both analyses up to the genus level, distinguishing the studied species, and when concatenated to the COI gene, there was a good support up to the species level. Another benefit of utilizing this region, is that some polymorphisms are associated with changes in spectral properties of the LWS opsin protein, which constitutes the visual pigment that absorbs red light. Thus, utilization of this gene as a molecular marker to study the phylogeny of Neotropical cichlids is promising.

  1. The needs, practice and effectiveness of education and professional training of convicts

    Directory of Open Access Journals (Sweden)

    Jovanić Goran

    2017-01-01

    Full Text Available With the implementation of a prison sentence as a separate sentence, the need has arisen for finding treatment methods of convicts that will contribute to the basic tendency - not to commit new criminal offenses. The aim of this paper was to describe the implementation of education in prison, convicts' needs for education, forms and theoretical basis on which the educational practice has been developed, and the assessment of educational activities effectiveness for convicts. There has been a constant search for the educational model that will meet the needs for education of a specific convict, and on the other hand, the needs of society and the labor market that a convict will join after release from prison. It is necessary for a convict, on the basis of the quality and level of acquired knowledge in prison, to take his place in the world of labor and in legal ways for obtaining subsistence goods in the free world. Parallel expectations of convicts' educational processes are directed towards their regimentation in prison during serving a sentence. Prison is primarily the penalty. An additional factor of modulation is the rationalization of costs of budgetary allocations in order to achieve a better result with the minimum resources spent. Two centuries of such search may seem a long period. However, the practice of punishment has been lasting for thousands of years. In this relatively short time period, in different penal systems, a range of forms of convicts' training has been recorded. They were more or less successful. There is still no irrefutable agreement that basic endeavor has been achieved. The data on the impact of education on reducing recidivism of convicts and the quality of post-penal reintegration are inconsistent. The search still continues.

  2. Homology of the Fifth Epibranchial and Accessory Elements of the Ceratobranchials among Gnathostomes: Insights from the Development of Ostariophysans

    Science.gov (United States)

    Carvalho, Murilo; Bockmann, Flávio Alicino; de Carvalho, Marcelo Rodrigues

    2013-01-01

    Epibranchials are among the main dorsal elements of the gill basket in jawed vertebrates (Gnathostomata). Among extant fishes, chondrichthyans most resemble the putative ancestral condition as all branchial arches possess every serially homologous piece. In osteichthyans, a primitive rod-like epibranchial 5, articulated to ceratobranchial 5, is absent. Instead, epibranchial 5 of many actinopterygians is here identified as an accessory element attached to ceratobranchial 4. Differences in shape and attachment of epibranchial 5 in chondrichthyans and actinopterygians raised suspicions about their homology, prompting us to conduct a detailed study of the morphology and development of the branchial basket of three ostariophysans (Prochilodus argenteus, Characiformes; Lophiosilurus alexandri and Pseudoplatystoma corruscans, Siluriformes). Results were interpreted within a phylogenetic context of major gnathostome lineages. Developmental series strongly suggest that the so-called epibranchial 5 of actinopterygians does not belong to the epal series because it shares the same chondroblastic layer with ceratobranchial 4 and its ontogenetic emergence is considerably late. This neomorphic structure is called accessory element of ceratobranchial 4. Its distribution among gnathostomes indicates it is a teleost synapomorphy, occurring homoplastically in Polypteriformes, whereas the loss of the true epibranchial 5 is an osteichthyan synapomorphy. The origin of the accessory element of ceratobranchial 4 appears to have occurred twice in osteichthyans, but it may have a single origin; in this case, the accessory element of ceratobranchial 4 would represent a remnant of a series of elements distally attached to ceratobranchials 1–4, a condition totally or partially retained in basal actinopterygians. Situations wherein a structure is lost while a similar neomorphic element is present may lead to erroneous homology assessments; these can be avoided by detailed morphological and

  3. Morphology, molecules, and monogenean parasites: an example of an integrative approach to cichlid biodiversity.

    Directory of Open Access Journals (Sweden)

    Maarten Van Steenberge

    Full Text Available The unparalleled biodiversity of Lake Tanganyika (Africa has fascinated biologists for over a century; its unique cichlid communities are a preferred model for evolutionary research. Although species delineation is, in most cases, relatively straightforward, higher-order classifications were shown not to agree with monophyletic groups. Here, traditional morphological methods meet their limitations. A typical example are the tropheine cichlids currently belonging to Simochromis and Pseudosimochromis. The affiliations of these widespread and abundant cichlids are poorly understood. Molecular work suggested that genus and species boundaries should be revised. Moreover, previous morphological results indicated that intraspecific variation should be considered to delineate species in Lake Tanganyika cichlids. We review the genera Simochromis and Pseudosimochromis using an integrative approach. Besides a morphometric study and a barcoding approach, monogenean Cichlidogyrus (Platyhelminthes: Ancyrocephalidae gill parasites, often highly species-specific, are used as complementary markers. Six new species are described. Cichlidogyrus raeymaekersi sp. nov., C. muterezii sp. nov. and C. banyankimbonai sp. nov. infect S. diagramma. Cichlidogyrus georgesmertensi sp. nov. was found on S. babaulti and S. pleurospilus, C. franswittei sp. nov. on both S. marginatus and P. curvifrons and C. frankwillemsi sp. nov. only on P. curvifrons. As relatedness between Cichlidogyrus species usually reflects relatedness between hosts, we considered Simochromis monotypic because the three Cichlidogyrus species found on S. diagramma belonged to a different morphotype than those found on the other Simochromis. The transfer of S. babaulti, S. marginatus, S. pleurospilus and S. margaretae to Pseudosimochromis was justified by the similarity of their Cichlidogyrus fauna and the intermediate morphology of S. margaretae. Finally parasite data also supported the synonymy between S

  4. Aggression and welfare in a common aquarium fish, the Midas cichlid.

    Science.gov (United States)

    Oldfield, Ronald G

    2011-01-01

    Many species of fishes are aggressive when placed in small aquaria. Aggression can negatively affect the welfare of those individuals toward whom it is directed. Animals may behave aggressively in order to defend resources such as food, shelter, mates, and offspring. The decision to defend depends on the distribution of resources and on ecological factors such as number of competitors, amount of available space, and amount of habitat complexity. This study tested the effects of these factors on aggression in a common aquarium fish, the Midas cichlid (Amphilophus citrinellus). The study found that time spent behaving aggressively was not associated with small-scale differences in group size or available space. Aggression was significantly lower in a large aquarium with a complex habitat. Aquaria of sizes typically used in the companion animal (pet) hobby did not provide optimal welfare for cichlids housed with aggressive conspecifics. The public should be aware that this and similar species require larger aquaria with complex habitat, which elicit more natural behavior.

  5. Correlated evolution of short wavelength sensitive photoreceptor sensitivity and color pattern in Lake Malawi cichlids

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    Michael J. Pauers

    2016-02-01

    Full Text Available For evolutionary ecologists, the holy grail of visual ecology is to establish an unambiguous link between photoreceptor sensitivity, the spectral environment, and the perception of specific visual stimuli (e.g., mates, food, predators, etc.. Due to the bright nuptial colors of the males, and the role female mate choice plays in their evolution, the haplochromine cichlid fishes of the African great lakes are favorite research subjects for such investigations. Despite this attention, current evidence is equivocal; while distinct correlations among photoreceptor sensitivity, photic environment, and male coloration exist in Lake Victorian haplochromines, attempts to find such correlations in Lake Malawian cichlids have failed. Lake Malawi haplochromines have a wide variability in their short-wavelength-sensitive photoreceptors, especially compared to their mid- and long-wavelength-sensitive photoreceptors; these cichlids also vary in the degree to which they express one of three basic color patterns (vertical bars, horizontal stripes, and solid patches of colors, each of which is likely used in a different form of communication. Thus, we hypothesize that, in these fishes, spectral sensitivity and color pattern have evolved in a correlated fashion to maximize visual communication; specifically, ultraviolet sensitivity should be found in vertically-barred species to promote ‘private’ communication, while striped species should be less likely to have ultraviolet sensitivity, since their color pattern carries ‘public’ information. Using phylogenetic independent contrasts, we found that barred species had strong sensitivity to ultraviolet wavelengths, but that striped species typically lacked sensitivity to ultraviolet light. Further, the only variable, even when environmental variables were simultaneously considered, that could predict ultraviolet sensitivity was color pattern. We also found that, using models of correlated evolution, color

  6. Rapid sympatric ecological differentiation of crater lake cichlid fishes within historic times

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    Harrod Chris

    2010-05-01

    Full Text Available Abstract Background After a volcano erupts, a lake may form in the cooled crater and become an isolated aquatic ecosystem. This makes fishes in crater lakes informative for understanding sympatric evolution and ecological diversification in barren environments. From a geological and limnological perspective, such research offers insight about the process of crater lake ecosystem establishment and speciation. In the present study we use genetic and coalescence approaches to infer the colonization history of Midas cichlid fishes (Amphilophus cf. citrinellus that inhabit a very young crater lake in Nicaragua-the ca. 1800 year-old Lake Apoyeque. This lake holds two sympatric, endemic morphs of Midas cichlid: one with large, hypertrophied lips (~20% of the total population and another with thin lips. Here we test the associated ecological, morphological and genetic diversification of these two morphs and their potential to represent incipient speciation. Results Gene coalescence analyses [11 microsatellite loci and mitochondrial DNA (mtDNA sequences] suggest that crater lake Apoyeque was colonized in a single event from the large neighbouring great lake Managua only about 100 years ago. This founding in historic times is also reflected in the extremely low nuclear and mitochondrial genetic diversity in Apoyeque. We found that sympatric adult thin- and thick-lipped fishes occupy distinct ecological trophic niches. Diet, body shape, head width, pharyngeal jaw size and shape and stable isotope values all differ significantly between the two lip-morphs. The eco-morphological features pharyngeal jaw shape, body shape, stomach contents and stable isotopes (δ15N all show a bimodal distribution of traits, which is compatible with the expectations of an initial stage of ecological speciation under disruptive selection. Genetic differentiation between the thin- and thick-lipped population is weak at mtDNA sequence (FST = 0.018 and absent at nuclear

  7. Genetic isolation and morphological divergence mediated by high-energy rapids in two cichlid genera from the lower Congo rapids

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    Stiassny Melanie LJ

    2010-05-01

    Full Text Available Abstract Background It is hypothesized that one of the mechanisms promoting diversification in cichlid fishes in the African Great Lakes has been the well-documented pattern of philopatry along shoreline habitats leading to high levels of genetic isolation among populations. However lake habitats are not the only centers of cichlid biodiversity - certain African rivers also contain large numbers of narrowly endemic species. Patterns of isolation and divergence in these systems have tended to be overlooked and are not well understood. Results We examined genetic and morphological divergence among populations of two narrowly endemic cichlid species, Teleogramma depressum and Lamprologus tigripictilis, from a 100 km stretch of the lower Congo River using both nDNA microsatellites and mtDNA markers along with coordinate-based morphological techniques. In L. tigripictilis, the strongest genetic break was concordant with measurable phenotypic divergence but no morphological disjunction was detected for T. depressum despite significant differentiation at mtDNA and nDNA microsatellite markers. Conclusions The genetic markers revealed patterns of philopatry and estimates of genetic isolation that are among the highest reported for any African cichlid species over a comparable geographic scale. We hypothesize that the high levels of philopatry observed are generated and maintained by the extreme hydrology of the lower Congo River.

  8. Integrated Moral Conviction Theory of Student Cheating: An Empirical Test

    Science.gov (United States)

    Roberts, Foster; Thomas, Christopher H.; Novicevic, Milorad M.; Ammeter, Anthony; Garner, Bart; Johnson, Paul; Popoola, Ifeoluwa

    2018-01-01

    In this article, we develop an "integrated moral conviction theory of student cheating" by integrating moral conviction with (a) the dual-process model of Hunt-Vitell's theory that gives primacy to individual ethical philosophies when moral judgments are made and (b) the social cognitive conceptualization that gives primacy to moral…

  9. Risk Factors for first time Drink-Driving Convictions among Young Males

    DEFF Research Database (Denmark)

    Christoffersen, Mogens; Soothill, Keith; Francis, Brian

    2008-01-01

    -driving conviction increased substantially in rural areas compared to metropolitan areas. The study concludes that disadvantages during adolescence, including parental substance abuse, having a teenage mother, and domestic violence, are associated with a first-time drink-driving conviction....

  10. Eyewitness Testimony, False Confession, and Human Performance Technology: An Examination of Wrongful Convictions

    Science.gov (United States)

    Johnson, Terry L.

    2013-01-01

    Wrongful criminal convictions have come to the attention of the public and the criminal justice community in recent decades as a result of DNA evidence that has proven innocence after conviction. Research has suggested that as many as 3% to 5% of people currently imprisoned did not, in fact, commit the crimes for which they were convicted. A…

  11. The interaction of economic rewards and moral convictions in predicting attitudes toward resource use.

    Science.gov (United States)

    Bastian, Brock; Zhang, Airong; Moffat, Kieren

    2015-01-01

    When people are morally convicted regarding a specific issue, these convictions exert a powerful influence on their attitudes and behavior. In the current research we examined whether there are boundary conditions to the influence of this effect. Specifically, whether in the context of salient economic rewards, moral convictions may become weaker predictors of attitudes regarding resource use. Focusing on the issue of mining we gathered large-scale samples across three different continents (Australia, Chile, and China). We found that moral convictions against mining were related to a reduced acceptance of mining in each country, while perceived economic rewards from mining increased acceptance. These two motivations interacted, however, such that when perceived economic benefit from mining was high, the influence of moral conviction was weaker. The results highlight the importance of understanding the roles of both moral conviction and financial gain in motivating attitudes towards resource use.

  12. The interaction of economic rewards and moral convictions in predicting attitudes toward resource use.

    Directory of Open Access Journals (Sweden)

    Brock Bastian

    Full Text Available When people are morally convicted regarding a specific issue, these convictions exert a powerful influence on their attitudes and behavior. In the current research we examined whether there are boundary conditions to the influence of this effect. Specifically, whether in the context of salient economic rewards, moral convictions may become weaker predictors of attitudes regarding resource use. Focusing on the issue of mining we gathered large-scale samples across three different continents (Australia, Chile, and China. We found that moral convictions against mining were related to a reduced acceptance of mining in each country, while perceived economic rewards from mining increased acceptance. These two motivations interacted, however, such that when perceived economic benefit from mining was high, the influence of moral conviction was weaker. The results highlight the importance of understanding the roles of both moral conviction and financial gain in motivating attitudes towards resource use.

  13. Individual psychological features of law enforcement officers convicted of crimes

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    Lyutykh V.A.

    2016-06-01

    Full Text Available The relevance of this topic is caused by a significant number of crimes committed by law enforcement officers and the necessity of active prevention. The aim of the study was to determine the individual psychological characteristics of law enforcement officers convicted of intentional crimes. The hypothesis was suggested that the main difference of individual psychological characteristics of law enforcement officers convicted of intentional crimes from individual psychological characteristics of law-abiding law enforcement officers is the difference between the principal values of the person both the main motives of activity adopted by an individual and the structure and the hierarchy of these values. This article describes the progress and results of empirical research conducted on the materials of psychodiagnostic examination of: employees who have been convicted of intentional crimes; law-abiding employees; people entering an internal affairs agency. Test subjects - men 18-46 years old, 90 people. Recommendations for practical psychologist of internal affairs agencies on detection of individual psychological personality features typical for law enforcement officers convicted of intentional crimes are formulated based on the obtained results.

  14. Divergent mating preferences and nuptial coloration in sibling species of cichlid fish

    NARCIS (Netherlands)

    Sluijs, Inke van der

    2008-01-01

    Mate choice by female cichlid fish from Lake Victoria plays an important role in speciation and the maintenance of species. Females are expected to select against males that are intermediate in their phenotype during the process of speciation driven by sexual selection. To test this, we hybridized

  15. Does Wrongful Conviction Lower Deterrence?

    DEFF Research Database (Denmark)

    Lando, Henrik

    2004-01-01

    lowerthe threat of being sanctioned for a crime one commits, if two sanctions are not twiceas threatening as one. Second, if wrongful conviction halts further investigations thatmay lead to the true offender, and third, if a potential offender thinks that if he or shedoes not take advantage of a crime...

  16. Salinity effects on behavioural response to hypoxia in the non-native Mayan cichlid Cichlasoma urophthalmus from Florida Everglades wetlands.

    Science.gov (United States)

    Schofield, P J; Loftus, W F; Fontaine, J A

    2009-04-01

    This study quantified the hypoxia tolerance of the Mayan cichlid Cichlasoma urophthalmus over a range of salinities. The species was very tolerant of hypoxia, using aquatic surface respiration (ASR) and buccal bubble holding when oxygen tensions dropped to <20 mmHg (c. 1.0 mg l(-1)) and 6 mmHg, respectively. Salinity had little effect on the hypoxia tolerance of C. urophthalmus, except that bubble holding was more frequent at the higher salinities tested. Levels of aggression were greatest at the highest salinity. The ASR thresholds of C. urophthalmus were similar to native centrarchid sunfishes from the Everglades, however, aggression levels for C. uropthalmus were markedly higher.

  17. Rapid adaptation to a novel light environment: The importance of ontogeny and phenotypic plasticity in shaping the visual system of Nicaraguan Midas cichlid fish (Amphilophus citrinellus spp.).

    Science.gov (United States)

    Härer, Andreas; Torres-Dowdall, Julián; Meyer, Axel

    2017-10-01

    Colonization of novel habitats is typically challenging to organisms. In the initial stage after colonization, approximation to fitness optima in the new environment can occur by selection acting on standing genetic variation, modification of developmental patterns or phenotypic plasticity. Midas cichlids have recently colonized crater Lake Apoyo from great Lake Nicaragua. The photic environment of crater Lake Apoyo is shifted towards shorter wavelengths compared to great Lake Nicaragua and Midas cichlids from both lakes differ in visual sensitivity. We investigated the contribution of ontogeny and phenotypic plasticity in shaping the visual system of Midas cichlids after colonizing this novel photic environment. To this end, we measured cone opsin expression both during development and after experimental exposure to different light treatments. Midas cichlids from both lakes undergo ontogenetic changes in cone opsin expression, but visual sensitivity is consistently shifted towards shorter wavelengths in crater lake fish, which leads to a paedomorphic retention of their visual phenotype. This shift might be mediated by lower levels of thyroid hormone in crater lake Midas cichlids (measured indirectly as dio2 and dio3 gene expression). Exposing fish to different light treatments revealed that cone opsin expression is phenotypically plastic in both species during early development, with short and long wavelength light slowing or accelerating ontogenetic changes, respectively. Notably, this plastic response was maintained into adulthood only in the derived crater lake Midas cichlids. We conclude that the rapid evolution of Midas cichlids' visual system after colonizing crater Lake Apoyo was mediated by a shift in visual sensitivity during ontogeny and was further aided by phenotypic plasticity during development. © 2017 John Wiley & Sons Ltd.

  18. Parental Investment and sexual immune dimorphism in cichlids ans syngnathids

    OpenAIRE

    Keller, Isabel Salome

    2017-01-01

    I investigated how the interrelationship between parental investment and sexual immune dimorphism shape the evolution of parental care strategies within the cichlids and syngnathids. To understand why parental investment is displayed in such diversity in the animal kingdom, I assessed evolutionary and provisioning costs of parental investment in male pregnancy, biparental and maternal mouthbrooding. Additionally, to address the importance of parental investment, I tested for maternal effects ...

  19. Assessment of Mercury Bioaccumulation in Zebra Cichlid (Cichlasoma Nigrofasciatum Exposed to Sublethal Concentrations of Permethrin

    Directory of Open Access Journals (Sweden)

    Mahdi Banaee

    2014-12-01

    Full Text Available Background: Aquatic ecosystems are frequently subjected to contamination by toxic heavy metals and pesticides, yet very little is known about the influence of pesticides on bioaccumulation of heavy metals in aquatic organisms. Mercury is a toxic metal with no known biological benefit to organisms. Bioavailability of mercury in aquatic environments depends on biological and non-biological parameters including other pollutants. Therefore, the objectives of this research were to determine the effects of permethrin on bioaccumulation of mercury in zebra cichlid. Methods: Acute toxicity (LC50 of permethrin and mercury chloride was evaluated by estimating mortality in Probit Model in SPSS (version 19.0 IBM. In sub-lethal toxicity, zebra cichlid (Cichlasoma nigrofasciatum was exposed to various concentrations of permethrin (0.0, 0.40, 0.80, 1.20 and 1.60 µg.L-1 combined with 20 µg.L-1 mercury chloride for 15 days. At the end of the experiment, mercury concentrations were measured using ICP-OES-Perkin elmer (optima 7300-DV. Results: 96 h LC50 values of permethrin and mercury for C. nigrofasciatum were calculated to be 17.55 µg.L-1 and 140.38 µg.L-1, respectively. Our results clearly showed that the bioaccumulation of mercury in the specimens increased with increasing concentrations of permethrin to 1.20 and 1.60 µg.L-1. Conclusion: Increasing the concentration of permethrin had synergistic effects on the bioaccumulation of mercury in fish.

  20. Labeling and intergenerational transmission of crime: The interaction between criminal justice intervention and a convicted parent.

    Directory of Open Access Journals (Sweden)

    Sytske Besemer

    Full Text Available Labeling theory suggests that criminal justice interventions amplify offending behavior. Theories of intergenerational transmission suggest why children of convicted parents have a higher risk of offending. This paper combines these two perspectives and investigates whether labeling effects might be stronger for children of convicted parents. We first investigated labeling effects within the individual: we examined the impact of a conviction between ages 19-26 on self-reported offending behavior between 27-32 while controlling for self-reported behavior between 15-18. Our results show that a conviction predicted someone's later self-reported offending behavior, even when previous offending behavior was taken into account. Second, we investigated whether having a convicted parent influenced this association. When we added this interaction to the analysis, a labeling effect was only visible among people with convicted parents. This supports the idea of cumulative disadvantage: Labeling seems stronger for people who are already in a disadvantaged situation having a convicted parent.

  1. Divergent hormonal responses to social competition in closely related species of haplochromine cichlid fish

    NARCIS (Netherlands)

    Dijkstra, Peter D.; Verzijden, Machteld N.; Groothuis, Ton G. G.; Hofmann, Hans A.

    The diverse cichlid species flocks of the East African lakes provide a classical example of adaptive radiation. Territorial aggression is thought to influence the evolution of phenotypic diversity in this system. Most vertebrates mount hormonal (androgen, glucocorticoid) responses to a territorial

  2. 17 CFR 14.5 - Criminal conviction.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Criminal conviction. 14.5 Section 14.5 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION RULES RELATING TO... felony or of a misdemeanor involving fraud or involving moral turpitude in matters related to the...

  3. When concealed handgun licensees break bad: criminal convictions of concealed handgun licensees in Texas, 2001-2009.

    Science.gov (United States)

    Phillips, Charles D; Nwaiwu, Obioma; McMaughan Moudouni, Darcy K; Edwards, Rachel; Lin, Szu-hsuan

    2013-01-01

    We explored differences in criminal convictions between holders and nonholders of a concealed handgun license (CHL) in Texas. The Texas Department of Public Safety (DPS) provides annual data on criminal convictions of holders and nonholders of CHLs. We used 2001 to 2009 DPS data to investigate the differences in the distribution of convictions for these 2 groups across 9 types of criminal offenses. We calculated z scores for the differences in the types of crimes for which CHL holders and nonholders were convicted. CHL holders were much less likely than nonlicensees to be convicted of crimes. Most nonholder convictions involved higher-prevalence crimes (burglary, robbery, or simple assault). CHL holders' convictions were more likely to involve lower-prevalence crimes, such as sexual offenses, gun offenses, or offenses involving a death. Our results imply that expanding the settings in which concealed carry is permitted may increase the risk of specific types of crimes, some quite serious in those settings. These increased risks may be relatively small. Nonetheless, policymakers should consider these risks when contemplating reducing the scope of gun-free zones.

  4. Uncertainty about the release and postpenal treatment for convict women

    OpenAIRE

    Marussig, Špela

    2017-01-01

    Postpenal treatment is, as of yet, a poorly researched concept in Slovenia. It deals with aiding and supporting convicts during their sentence and after their release from prison. This entails assis-tance in arranging accommodation, finding employment, psychological counselling for the convict as well as support for his family. Using qualitative research, I intend to explore how the postpenal treatment process takes place in practice. The research relates exclusively to the female populati...

  5. Complementary description of Ergasilus arthrosis Roberts, 1969 (Copepoda: Poecilostomatoida: Ergasilidae), a new parasite of cichlid teleosts in southeast Mexico.

    Science.gov (United States)

    Jiménez-García, María Isabel; Suárez-Morales, Eduardo

    2017-01-01

    During a parasitological survey of the ichthyofauna of Lake Catemaco, a freshwater system in the Mexican State of Veracruz, the widespread copepod Ergasilus arthrosis Roberts, 1969 was recovered from two cichlid teleosts, Mayaheros urophthalmus (Günther) and Oreochromis sp. This is the first confirmed record of this copepod species outside of the United States and from Mexico; its finding as a parasite of cichlids represents an expansion of the known host range for this copepod. The local prevalence and intensity of infection of E. arthrosis was highest in M. urophthalmus. The infection prevalence of E. arthrosis on M. urophthalmus (60%) was higher than that known for other ergasilids on cichlids. Ergasilus arthrosis can be distinguished from its closest congener E. lizae Krøyer, 1863 by the morphometry of the antennary segments, the ventral ornamentation of the thoracic sclerites and by details of the antennulary setation, but also by its habitat and host preferences. Taxonomic illustrations and morphological details of the specimens examined are also provided together with comments on the variability of this species.

  6. Testing the carotenoid trade-off hypothesis in the polychromatic Midas cichlid, Amphilophus citrinellus.

    Science.gov (United States)

    Lin, Susan M; Nieves-Puigdoller, Katherine; Brown, Alexandria C; McGraw, Kevin J; Clotfelter, Ethan D

    2010-01-01

    Many animals use carotenoid pigments derived from their diet for coloration and immunity. The carotenoid trade-off hypothesis predicts that, under conditions of carotenoid scarcity, individuals may be forced to allocate limited carotenoids to either coloration or immunity. In polychromatic species, the pattern of allocation may differ among individuals. We tested the carotenoid trade-off hypothesis in the Midas cichlid, Amphilophus citrinellus, a species with two ontogenetic color morphs, barred and gold, the latter of which is the result of carotenoid expression. We performed a diet-supplementation experiment in which cichlids of both color morphs were assigned to one of two diet treatments that differed only in carotenoid content (beta-carotene, lutein, and zeaxanthin). We measured integument color using spectrometry, quantified carotenoid concentrations in tissue and plasma, and assessed innate immunity using lysozyme activity and alternative complement pathway assays. In both color morphs, dietary carotenoid supplementation elevated plasma carotenoid circulation but failed to affect skin coloration. Consistent with observable differences in integument coloration, we found that gold fish sequestered more carotenoids in skin tissue than barred fish, but barred fish had higher concentrations of carotenoids in plasma than gold fish. Neither measure of innate immunity differed between gold and barred fish, or as a function of dietary carotenoid supplementation. Lysozyme activity, but not complement activity, was strongly affected by body condition. Our data show that a diet low in carotenoids is sufficient to maintain both coloration and innate immunity in Midas cichlids. Our data also suggest that the developmental transition from the barred to gold morph is not accompanied by a decrease in innate immunity in this species.

  7. Abortion foe convicted and sentenced for murders of women's health clinic workers.

    Science.gov (United States)

    1996-03-22

    On March 18, after deliberating for approximately nine hours over two days, a Dedham, Massachusetts, jury found John Salvi guilty of two counts of first-degree murder for the December 1994 shooting deaths of Shannon Lowney and Lee Ann Nichols, receptionists at two Brookline, Massachusetts, women's health care clinics. Salvi was also convicted of five counts of assault with intent to murder (see RFN IV/1). Almost immediately, Norfolk Superior Court Judge Barbara Dortch-Okara ordered Salvi to serve the maximum sentence--two consecutive life terms in prison without parole--for the murders and an additional 90-100 years for the five assaults. Under Massachusetts law, the first-degree murder convictions will be automatically appealed. In reaching their verdict, the jury of six men and six women rejected Salvi's plea of not guilty by reason of insanity. The five-week trial included testimony from more than 100 witnesses. In the past two years, two other men have been convicted for the first-degree murders of abortion providers: Michael Griffin, who was convicted of murdering Dr. David Gunn in March 1994, is now serving a life sentence; and Paul Hill, who was convicted of murdering Dr. John Britton and James Barrett in November 1995, is on Florida's death row while his sentence is pending mandatory appeal (see RFN III/19, 22). full text

  8. 77 FR 62213 - Information Collection Request; Representations Regarding Felony Conviction and Tax Delinquent...

    Science.gov (United States)

    2012-10-12

    ... Conviction and Tax Delinquent Status for Corporate Applicants and Awardees AGENCY: Office of the Chief... associated with Representations Regarding Felony Conviction and Tax Delinquent Status for Corporate... alternative means for communication (Braille, large print, audio tape, etc) should contact the USDA Target...

  9. The Growing Acknowledgement of Wrongful Conviction – The Australian Response Within an International Context

    Directory of Open Access Journals (Sweden)

    Lynne Weathered

    2013-12-01

    Full Text Available The wrongful conviction of innocent people is being acknowledged in an increasing number of countries around the world. The problem of wrongful conviction is now framed as an international human rights issue. More attention is being given to whether criminal justice systems are providing sufficient measures for the effective review and rectification of wrongful convictions and whether international obligations in that regard are being met. England, Wales, Northern Ireland, Scotland, Norway, Canada and the United States have substantial new mechanisms in place to better identify and correct wrongful convictions but Australia has been slower to respond. While some Australian states have introduced reforms such as DNA innocence testing and a new appeal avenue, many issues remain as highlighted in recent debates as to whether Australia should establish a Criminal Cases Review Commission.

  10. Hidden biodiversity in an ancient lake: phylogenetic congruence between Lake Tanganyika tropheine cichlids and their monogenean flatworm parasites.

    Science.gov (United States)

    Vanhove, Maarten P M; Pariselle, Antoine; Van Steenberge, Maarten; Raeymaekers, Joost A M; Hablützel, Pascal I; Gillardin, Céline; Hellemans, Bart; Breman, Floris C; Koblmüller, Stephan; Sturmbauer, Christian; Snoeks, Jos; Volckaert, Filip A M; Huyse, Tine

    2015-09-03

    The stunning diversity of cichlid fishes has greatly enhanced our understanding of speciation and radiation. Little is known about the evolution of cichlid parasites. Parasites are abundant components of biodiversity, whose diversity typically exceeds that of their hosts. In the first comprehensive phylogenetic parasitological analysis of a vertebrate radiation, we study monogenean parasites infecting tropheine cichlids from Lake Tanganyika. Monogeneans are flatworms usually infecting the body surface and gills of fishes. In contrast to many other parasites, they depend only on a single host species to complete their lifecycle. Our spatially comprehensive combined nuclear-mitochondrial DNA dataset of the parasites covering almost all tropheine host species (N = 18), reveals species-rich parasite assemblages and shows consistent host-specificity. Statistical comparisons of host and parasite phylogenies based on distance and topology-based tests demonstrate significant congruence and suggest that host-switching is rare. Molecular rate evaluation indicates that species of Cichlidogyrus probably diverged synchronically with the initial radiation of the tropheines. They further diversified through within-host speciation into an overlooked species radiation. The unique life history and specialisation of certain parasite groups has profound evolutionary consequences. Hence, evolutionary parasitology adds a new dimension to the study of biodiversity hotspots like Lake Tanganyika.

  11. Genetic, comparative genomic, and expression analyses of the Mc1r locus in the polychromatic Midas cichlid fish (Teleostei, Cichlidae Amphilophus sp.) species group.

    Science.gov (United States)

    Henning, Frederico; Renz, Adina Josepha; Fukamachi, Shoji; Meyer, Axel

    2010-05-01

    Natural populations of the Midas cichlid species in several different crater lakes in Nicaragua exhibit a conspicuous color polymorphism. Most individuals are dark and the remaining have a gold coloration. The color morphs mate assortatively and sympatric population differentiation has been shown based on neutral molecular data. We investigated the color polymorphism using segregation analysis and a candidate gene approach. The segregation patterns observed in a mapping cross between a gold and a dark individual were consistent with a single dominant gene as a cause of the gold phenotype. This suggests that a simple genetic architecture underlies some of the speciation events in the Midas cichlids. We compared the expression levels of several candidate color genes Mc1r, Ednrb1, Slc45a2, and Tfap1a between the color morphs. Mc1r was found to be up regulated in the gold morph. Given its widespread association in color evolution and role on melanin synthesis, the Mc1r locus was further investigated using sequences derived from a genomic library. Comparative analysis revealed conserved synteny in relation to the majority of teleosts and highlighted several previously unidentified conserved non-coding elements (CNEs) in the upstream and downstream regions in the vicinity of Mc1r. The identification of the CNEs regions allowed the comparison of sequences from gold and dark specimens of natural populations. No polymorphisms were found between in the population sample and Mc1r showed no linkage to the gold phenotype in the mapping cross, demonstrating that it is not causally related to the color polymorphism in the Midas cichlid.

  12. Morphological Diversity and the Roles of Contingency, Chance and Determinism in African Cichlid Radiations

    Science.gov (United States)

    Young, Kyle A.; Snoeks, Jos; Seehausen, Ole

    2009-01-01

    Background Deterministic evolution, phylogenetic contingency and evolutionary chance each can influence patterns of morphological diversification during adaptive radiation. In comparative studies of replicate radiations, convergence in a common morphospace implicates determinism, whereas non-convergence suggests the importance of contingency or chance. Methodology/Principal Findings The endemic cichlid fish assemblages of the three African great lakes have evolved similar sets of ecomorphs but show evidence of non-convergence when compared in a common morphospace, suggesting the importance of contingency and/or chance. We then analyzed the morphological diversity of each assemblage independently and compared their axes of diversification in the unconstrained global morphospace. We find that despite differences in phylogenetic composition, invasion history, and ecological setting, the three assemblages are diversifying along parallel axes through morphospace and have nearly identical variance-covariance structures among morphological elements. Conclusions/Significance By demonstrating that replicate adaptive radiations are diverging along parallel axes, we have shown that non-convergence in the common morphospace is associated with convergence in the global morphospace. Applying these complimentary analyses to future comparative studies will improve our understanding of the relationship between morphological convergence and non-convergence, and the roles of contingency, chance and determinism in driving morphological diversification. PMID:19270732

  13. The gut microbial community of Midas cichlid fish in repeatedly evolved limnetic-benthic species pairs.

    Science.gov (United States)

    Franchini, Paolo; Fruciano, Carmelo; Frickey, Tancred; Jones, Julia C; Meyer, Axel

    2014-01-01

    Gut bacterial communities are now known to influence a range of fitness related aspects of organisms. But how different the microbial community is in closely related species, and if these differences can be interpreted as adaptive is still unclear. In this study we compared microbial communities in two sets of closely related sympatric crater lake cichlid fish species pairs that show similar adaptations along the limnetic-benthic axis. The gut microbial community composition differs in the species pair inhabiting the older of two crater lakes. One major difference, relative to other fish, is that in these cichlids that live in hypersaline crater lakes, the microbial community is largely made up of Oceanospirillales (52.28%) which are halotolerant or halophilic bacteria. This analysis opens up further avenues to identify candidate symbiotic or co-evolved bacteria playing a role in adaptation to similar diets and life-styles or even have a role in speciation. Future functional and phylosymbiotic analyses might help to address these issues.

  14. Molecular phylogeny and biogeography of the Neotropical cichlid fish tribe Cichlasomatini (Teleostei: Cichlidae: Cichlasomatinae)

    Czech Academy of Sciences Publication Activity Database

    Musilová, Zuzana; Říčan, Oldřich; Janko, Karel; Novák, J.

    2008-01-01

    Roč. 46, - (2008), s. 659-672 ISSN 1055-7903 R&D Projects: GA MŠk LC06073 Grant - others:GA UK(CZ) 182/2004/B-BIO; GA UK(CZ) 139407 Institutional research plan: CEZ:AV0Z50450515 Keywords : molecular phylogeny * Cichlids * south America Subject RIV: EG - Zoology Impact factor: 3.871, year: 2008

  15. How Justice System Officials View Wrongful Convictions

    Science.gov (United States)

    Smith, Brad; Zalman, Marvin; Kiger, Angie

    2011-01-01

    The wrongful conviction of factually innocent people is a growing concern within the United States. Reforms generated by this concern are predicated in part on the views of justice system participants. The authors surveyed judges, police officials, prosecutors, and defense lawyers in Michigan regarding their views of why wrongful convictions…

  16. Correlated evolution of body and fin morphology in the cichlid fishes.

    Science.gov (United States)

    Feilich, Kara L

    2016-10-01

    Body and fin shapes are chief determinants of swimming performance in fishes. Different configurations of body and fin shapes can suit different locomotor specializations. The success of any configuration is dependent upon the hydrodynamic interactions between body and fins. Despite the importance of body-fin interactions for swimming, there are few data indicating whether body and fin configurations evolve in concert, or whether these structures vary independently. The cichlid fishes are a diverse family whose well-studied phylogenetic relationships make them ideal for the study of macroevolution of ecomorphology. This study measured body, and caudal and median fin morphology from radiographs of 131 cichlid genera, using morphometrics and phylogenetic comparative methods to determine whether these traits exhibit correlated evolution. Partial least squares canonical analysis revealed that body, caudal fin, dorsal fin, and anal fin shapes all exhibited strong correlated evolution consistent with locomotor ecomorphology. Major patterns included the evolution of deep body profiles with long fins, suggestive of maneuvering specialization; and the evolution of narrow, elongate caudal peduncles with concave tails, a combination that characterizes economical cruisers. These results demonstrate that body shape evolution does not occur independently of other traits, but among a suite of other morphological changes that augment locomotor specialization. © 2016 The Author(s). Evolution © 2016 The Society for the Study of Evolution.

  17. Intergenerational effects of parental substance-related convictions and adult drug treatment court participation on children's school performance.

    Science.gov (United States)

    Gifford, Elizabeth J; Sloan, Frank A; Eldred, Lindsey M; Evans, Kelly E

    2015-09-01

    This study examined the intergenerational effects of parental conviction of a substance-related charge on children's academic performance and, conditional on a conviction, whether completion of an adult drug treatment court (DTC) program was associated with improved school performance. State administrative data from North Carolina courts, birth records, and school records were linked for 2005-2012. Math and reading end-of-grade test scores and absenteeism were examined for 5 groups of children, those with parents who: were not convicted on any criminal charge, were convicted on a substance-related charge and not referred by a court to a DTC, were referred to a DTC but did not enroll, enrolled in a DTC but did not complete, and completed a DTC program. Accounting for demographic and socioeconomic factors, the school performance of children whose parents were convicted of a substance-related offense was worse than that of children whose parents were not convicted on any charge. These differences were statistically significant but substantially reduced after controlling for socioeconomic characteristics; for example, mother's educational attainment. We found no evidence that parent participation in an adult DTC program led to improved school performance of their children. While the children of convicted parents fared worse on average, much--but not all--of this difference was attributed to socioeconomic factors, with the result that parental conviction remained a risk factor for poorer school performance. Even though adult DTCs have been shown to have other benefits, we could detect no intergenerational benefit in improved school performance of their children. (c) 2015 APA, all rights reserved).

  18. The relationship between criminal conviction and interrogative suggestibility among delinquent boys.

    Science.gov (United States)

    Gudjonsson, G H; Singh, K K

    1984-03-01

    This study investigates the relationship between interrogative suggestibility, as measured by the Gudjonsson Suggestibility Scale (GSS), and number of previous convictions among 35 delinquent boys. The GSS measures two independent aspects of suggestibility. First, the extent to which subjects give in to suggestive questions. Second, the extent to which subjects give in to interpersonal pressure given in the form of critical feedback about test performance. The number of convictions were found to correlate negatively with the latter aspect of interrogative suggestibility, but not significantly with the former.

  19. Phylogeography, colonization and population history of the Midas cichlid species complex (Amphilophus spp. in the Nicaraguan crater lakes

    Directory of Open Access Journals (Sweden)

    Meyer Axel

    2010-10-01

    Full Text Available Abstract Background Elucidation of the mechanisms driving speciation requires detailed knowledge about the phylogenetic relationships and phylogeography of the incipient species within their entire ranges as well as their colonization history. The Midas cichlid species complex Amphilophus spp. has been proven to be a powerful model system for the study of ecological specialization, sexual selection and the mechanisms of sympatric speciation. Here we present a comprehensive and integrative phylogeographic analysis of the complete Midas Cichlid species complex in Nicaragua (> 2000 individuals covering the entire distributional range, using two types of molecular markers (the mitochondrial DNA control region and 15 microsatellites. We investigated the majority of known lake populations of this species complex and reconstructed their colonization history in order to distinguish between alternative speciation scenarios. Results We found that the large lakes contain older and more diverse Midas Cichlid populations, while all crater lakes hold younger and genetically less variable species assemblages. The large lakes appear to have repeatedly acted as source populations for all crater lakes, and our data indicate that faunal exchange among crater lakes is extremely unlikely. Despite their very recent (often only a few thousand years old and common origin from the two large Nicaraguan lakes, all crater lake Midas Cichlid radiations underwent independent, but parallel, evolution, and comprise distinct genetic units. Indeed several of these crater lakes contain multiple genetically distinct incipient species that most likely arose through sympatric speciation. Several crater lake radiations can be traced back to a single ancestral line, but some appear to have more than one founding lineage. The timing of the colonization(s of each crater lake differs, although most of them occurred more (probably much more recently than 20,000 years ago. Conclusion The

  20. Phylogeography, colonization and population history of the Midas cichlid species complex (Amphilophus spp.) in the Nicaraguan crater lakes.

    Science.gov (United States)

    Barluenga, Marta; Meyer, Axel

    2010-10-26

    Elucidation of the mechanisms driving speciation requires detailed knowledge about the phylogenetic relationships and phylogeography of the incipient species within their entire ranges as well as their colonization history. The Midas cichlid species complex Amphilophus spp. has been proven to be a powerful model system for the study of ecological specialization, sexual selection and the mechanisms of sympatric speciation. Here we present a comprehensive and integrative phylogeographic analysis of the complete Midas Cichlid species complex in Nicaragua (> 2000 individuals) covering the entire distributional range, using two types of molecular markers (the mitochondrial DNA control region and 15 microsatellites). We investigated the majority of known lake populations of this species complex and reconstructed their colonization history in order to distinguish between alternative speciation scenarios. We found that the large lakes contain older and more diverse Midas Cichlid populations, while all crater lakes hold younger and genetically less variable species assemblages. The large lakes appear to have repeatedly acted as source populations for all crater lakes, and our data indicate that faunal exchange among crater lakes is extremely unlikely. Despite their very recent (often only a few thousand years old) and common origin from the two large Nicaraguan lakes, all crater lake Midas Cichlid radiations underwent independent, but parallel, evolution, and comprise distinct genetic units. Indeed several of these crater lakes contain multiple genetically distinct incipient species that most likely arose through sympatric speciation. Several crater lake radiations can be traced back to a single ancestral line, but some appear to have more than one founding lineage. The timing of the colonization(s) of each crater lake differs, although most of them occurred more (probably much more) recently than 20,000 years ago. The genetic differentiation of the crater lake populations

  1. Contrasting parasite communities among allopatric colour morphs of the Lake Tanganyika cichlid Tropheus.

    Science.gov (United States)

    Raeymaekers, Joost A M; Hablützel, Pascal I; Grégoir, Arnout F; Bamps, Jolien; Roose, Anna K; Vanhove, Maarten P M; Van Steenberge, Maarten; Pariselle, Antoine; Huyse, Tine; Snoeks, Jos; Volckaert, Filip A M

    2013-02-14

    Adaptation to different ecological environments is thought to drive ecological speciation. This phenomenon culminates in the radiations of cichlid fishes in the African Great Lakes. Multiple characteristic traits of cichlids, targeted by natural or sexual selection, are considered among the driving factors of these radiations. Parasites and pathogens have been suggested to initiate or accelerate speciation by triggering both natural and sexual selection. Three prerequisites for parasite-driven speciation can be inferred from ecological speciation theory. The first prerequisite is that different populations experience divergent infection levels. The second prerequisite is that these infection levels cause divergent selection and facilitate adaptive divergence. The third prerequisite is that parasite-driven adaptive divergence facilitates the evolution of reproductive isolation. Here we investigate the first and the second prerequisite in allopatric chromatically differentiated lineages of the rock-dwelling cichlid Tropheus spp. from southern Lake Tanganyika (Central Africa). Macroparasite communities were screened in eight populations belonging to five different colour morphs. Parasite communities were mainly composed of acanthocephalans, nematodes, monogeneans, copepods, branchiurans, and digeneans. In two consecutive years (2011 and 2012), we observed significant variation across populations for infection with acanthocephalans, nematodes, monogeneans of the genera Gyrodactylus and Cichlidogyrus, and the copepod Ergasilus spp. Overall, parasite community composition differed significantly between populations of different colour morphs. Differences in parasite community composition were stable in time. The genetic structure of Tropheus populations was strong and showed a significant isolation-by-distance pattern, confirming that spatial isolation is limiting host dispersal. Correlations between parasite community composition and Tropheus genetic differentiation were

  2. 42 CFR 1002.230 - Notification of State or local convictions of crimes against Medicaid.

    Science.gov (United States)

    2010-10-01

    ... crimes against Medicaid. 1002.230 Section 1002.230 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE... MEDICAID Notification to OIG of State or Local Convictions of Crimes Against Medicaid § 1002.230 Notification of State or local convictions of crimes against Medicaid. (a) The State agency must notify the OIG...

  3. Incipient speciation driven by hypertrophied lips in Midas cichlid fishes?

    Science.gov (United States)

    Machado-Schiaffino, Gonzalo; Kautt, Andreas F; Torres-Dowdall, Julian; Baumgarten, Lukas; Henning, Frederico; Meyer, Axel

    2017-04-01

    Sympatric speciation has been debated in evolutionary biology for decades. Although it has gained in acceptance recently, still only a handful of empirical examples are seen as valid (e.g. crater lake cichlids). In this study, we disentangle the role of hypertrophied lips in the repeated adaptive radiations of Nicaraguan crater lake cichlid fish. We assessed the role of disruptive selection and assortative mating during the early stages of divergence and found a functional trade-off in feeding behaviour between thick- and thin-lipped ecotypes, suggesting that this trait is a target of disruptive selection. Thick-lipped fish perform better on nonevasive prey at the cost of a poorer performance on evasive prey. Using enclosures in the wild, we found that thick-lipped fish perform significantly better in rocky than in sandy habitats. We found almost no mixed pairs during two breeding seasons and hence significant assortative mating. Genetic differentiation between ecotypes seems to be related to the time since colonization, being subtle in L. Masaya (1600 generations ago) and absent in the younger L. Apoyeque (<600 generations ago). Genome-wide differentiation between ecotypes was higher in the old source lakes than in the young crater lakes. Our results suggest that hypertrophied lips might be promoting incipient sympatric speciation through divergent selection (ecological divergence in feeding performance) and nonrandom mating (assortative mating) in the young Nicaraguan crater lakes. Nonetheless, further manipulative experiments are needed in order to confirm the role of hypertrophied lips as the main cue for assortative mating. © 2017 John Wiley & Sons Ltd.

  4. Developmental finite element analysis of cichlid pharyngeal jaws: Quantifying the generation of a key innovation

    Science.gov (United States)

    Müller, Gerd B.

    2018-01-01

    Advances in imaging and modeling facilitate the calculation of biomechanical forces in biological specimens. These factors play a significant role during ontogenetic development of cichlid pharyngeal jaws, a key innovation responsible for one of the most prolific species diversifications in recent times. MicroCT imaging of radiopaque-stained vertebrate embryos were used to accurately capture the spatial relationships of the pharyngeal jaw apparatus in two cichlid species (Haplochromis elegans and Amatitlania nigrofasciata) for the purpose of creating a time series of developmental stages using finite element models, which can be used to assess the effects of biomechanical forces present in a system at multiple points of its ontogeny. Changes in muscle vector orientations, bite forces, force on the neurocranium where cartilage originates, and stress on upper pharyngeal jaws are analyzed in a comparative context. In addition, microCT scanning revealed the presence of previously unreported cement glands in A. nigrofasciata. The data obtained provide an underrepresented dimension of information on physical forces present in developmental processes and assist in interpreting the role of developmental dynamics in evolution. PMID:29320528

  5. Developmental finite element analysis of cichlid pharyngeal jaws: Quantifying the generation of a key innovation.

    Directory of Open Access Journals (Sweden)

    Tim Peterson

    Full Text Available Advances in imaging and modeling facilitate the calculation of biomechanical forces in biological specimens. These factors play a significant role during ontogenetic development of cichlid pharyngeal jaws, a key innovation responsible for one of the most prolific species diversifications in recent times. MicroCT imaging of radiopaque-stained vertebrate embryos were used to accurately capture the spatial relationships of the pharyngeal jaw apparatus in two cichlid species (Haplochromis elegans and Amatitlania nigrofasciata for the purpose of creating a time series of developmental stages using finite element models, which can be used to assess the effects of biomechanical forces present in a system at multiple points of its ontogeny. Changes in muscle vector orientations, bite forces, force on the neurocranium where cartilage originates, and stress on upper pharyngeal jaws are analyzed in a comparative context. In addition, microCT scanning revealed the presence of previously unreported cement glands in A. nigrofasciata. The data obtained provide an underrepresented dimension of information on physical forces present in developmental processes and assist in interpreting the role of developmental dynamics in evolution.

  6. The conviction of self-efficacy and midwives’ education

    Directory of Open Access Journals (Sweden)

    Justyna Krysa

    2018-04-01

    Full Text Available Abstract The interest in scientific research of the self-efficacy phenomenon provides new data and reveals further relationships between this phenomenon and the functioning of the individual in the society. The Albert Bandura’s socio-cognitive theory presents its important and the most popular theoretical construct - self-efficacy, which is a part of the cognitive components of personality. It is an assessment of the individual's competences, its conviction about the possibility of managing planned activities in a given field. Studies on the relationship between coping with the learning process and self-efficacy seem to be particularly interesting. In the analysis of the problem, there are a number of personality variables that could be important for undertaking and continuing education and training in adulthood, which is particularly important among people performing medical professions, including midwives. Motivation, conscientiousness, conviction about self-efficacy or cognitive abilities are mentioned in literature of the subject.

  7. The role of rare morph advantage and conspicuousness in the stable gold-dark colour polymorphism of a crater lake Midas cichlid fish.

    Science.gov (United States)

    Torres-Dowdall, Julián; Golcher-Benavides, Jimena; Machado-Schiaffino, Gonzalo; Meyer, Axel

    2017-09-01

    Genetically based stable colour polymorphisms provide a unique opportunity to study the evolutionary processes that preserve genetic variability in the wild. Different mechanisms are proposed to promote the stability of polymorphisms, but only few empirical examples have been documented, resulting in an incomplete understanding of these mechanisms. A remarkable genetically determined stable colour polymorphism is found in the Nicaraguan Midas cichlid species complex (Amphilophus cf. citrinellus). All Midas cichlids start their life with a dark-grey coloration (dark morph), but individuals carrying the dominant "gold" allele (c. 10%) lose their melanophores later in life, revealing the underlying orange coloration (gold morph). How this polymorphism is maintained remains unclear. Two main hypotheses have been proposed, both suggesting differential predation upon colour morphs as the proximate mechanism. One predicts that the conspicuous gold morph is more likely to be preyed upon, but this disadvantage is balanced by their competitive dominance over the dark morph. The second hypothesis suggests a rare morph advantage where the rarer gold morph experiences less predation. Empirical evidence for either of these mechanisms is still circumstantial and inconclusive. We conducted two field experiments in a Nicaraguan crater lake using wax models simulating both morphs to determine predation pressure upon Midas cichlid colour morphs. First, we tested the interaction of coloration and depth on attack rate. Second, we tested the interaction of fish size and coloration. We contrasted the pattern of attacks from these experiments to the predicted predation patterns from the hypotheses proposed to explain the colour polymorphism's stability. Large models imitating colour morphs were attacked at similar rates irrespectively of their position in the water column. Yet, attacks upon small models resembling juveniles were directed mainly towards dark models. This resulted in a

  8. Bentho-pelagic divergence of cichlid feeding architecture was prodigious and consistent during multiple adaptive radiations within African rift-lakes.

    Directory of Open Access Journals (Sweden)

    W James Cooper

    2010-03-01

    Full Text Available How particular changes in functional morphology can repeatedly promote ecological diversification is an active area of evolutionary investigation. The African rift-lake cichlids offer a calibrated time series of the most dramatic adaptive radiations of vertebrate trophic morphology yet described, and the replicate nature of these events provides a unique opportunity to test whether common changes in functional morphology have repeatedly facilitated their ecological success.Specimens from 87 genera of cichlid fishes endemic to Lakes Tanganyka, Malawi and Victoria were dissected in order to examine the functional morphology of cichlid feeding. We quantified shape using geometric morphometrics and compared patterns of morphological diversity using a series of analytical tests. The primary axes of divergence were conserved among all three radiations, and the most prevalent changes involved the size of the preorbital region of the skull. Even the fishes from the youngest of these lakes (Victoria, which exhibit the lowest amount of skull shape disparity, have undergone extensive preorbital evolution relative to other craniofacial traits. Such changes have large effects on feeding biomechanics, and can promote expansion into a wide array of niches along a bentho-pelagic ecomorphological axis.Here we show that specific changes in trophic anatomy have evolved repeatedly in the African rift lakes, and our results suggest that simple morphological alterations that have large ecological consequences are likely to constitute critical components of adaptive radiations in functional morphology. Such shifts may precede more complex shape changes as lineages diversify into unoccupied niches. The data presented here, combined with observations of other fish lineages, suggest that the preorbital region represents an evolutionary module that can respond quickly to natural selection when fishes colonize new lakes. Characterizing the changes in cichlid trophic

  9. Species-specific relationships between water transparency and male coloration within and between two closely related Lake Victoria cichlid species

    NARCIS (Netherlands)

    Castillo Cajas, Ruth F; Selz, Oliver M; Ripmeester, Erwin A P; Seehausen, Ole; Maan, Martine E

    2012-01-01

    Environmental variation in signalling conditions affects animal communication traits, with possible consequences for sexual selection and reproductive isolation. Using spectrophotometry, we studied how male coloration within and between populations of two closely related Lake Victoria cichlid

  10. Adaptive landscape and functional diversity of Neotropical cichlids: implications for the ecology and evolution of Cichlinae (Cichlidae; Cichliformes).

    Science.gov (United States)

    Arbour, J H; López-Fernández, H

    2014-11-01

    Morphological, lineage and ecological diversity can vary substantially even among closely related lineages. Factors that influence morphological diversification, especially in functionally relevant traits, can help to explain the modern distribution of disparity across phylogenies and communities. Multivariate axes of feeding functional morphology from 75 species of Neotropical cichlid and a stepwise-AIC algorithm were used to estimate the adaptive landscape of functional morphospace in Cichlinae. Adaptive landscape complexity and convergence, as well as the functional diversity of Cichlinae, were compared with expectations under null evolutionary models. Neotropical cichlid feeding function varied primarily between traits associated with ram feeding vs. suction feeding/biting and secondarily with oral jaw muscle size and pharyngeal crushing capacity. The number of changes in selective regimes and the amount of convergence between lineages was higher than expected under a null model of evolution, but convergence was not higher than expected under a similarly complex adaptive landscape. Functional disparity was compatible with an adaptive landscape model, whereas the distribution of evolutionary change through morphospace corresponded with a process of evolution towards a single adaptive peak. The continentally distributed Neotropical cichlids have evolved relatively rapidly towards a number of adaptive peaks in functional trait space. Selection in Cichlinae functional morphospace is more complex than expected under null evolutionary models. The complexity of selective constraints in feeding morphology has likely been a significant contributor to the diversity of feeding ecology in this clade. © 2014 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2014 European Society For Evolutionary Biology.

  11. The relation between emotional intelligence and criminal behavior: A study among convicted criminals

    Directory of Open Access Journals (Sweden)

    Neelu Sharma

    2015-01-01

    Full Text Available Background: Lack of emotional intelligence (EI may lead to maladjustment and inability to achieve desired goals. A relationship between low levels of EI and crime has been proposed. Aim: The aim was to assess the relationship between EI and criminal behavior. Materials and Methods: Study sample consisted of 202 subjects, in whom 101 subjects were convicted offenders, and 101 were matched normal controls. Offender group comprised of individuals convicted for different crimes such as murder, rape, and robbery, selected from Birsa Munda Central Jail, Hotwar, Ranchi, Jharkhand, India based on purposive sampling. Sample of the normal control group was taken from Ranchi and nearby areas. All subjects gave informed consent for participating in the study. Both the groups were matched on age, gender, education, occupation, and marital status. All participants were assessed on General Health Questionnaire-12 and Mangal Emotional Intelligence Inventory (MEII. The results were analyzed using statistical package SPSS-version 20. Results: The group of convicted offenders obtained significantly lower scores on all the domains of MEII such as intrapersonal awareness (own emotions, interpersonal awareness (others emotions, intrapersonal management (own emotions and interpersonal management (others emotions, and aggregate emotional quotient in comparison to their normal counterparts. Conclusion: The convicted offenders group had significantly lower EI compared to normal subjects. Starting EI enhancement program in prison can help the inmates better understand their feelings and emotions.

  12. How many species of cichlid fishes are there in African lakes?

    Science.gov (United States)

    Turner, G F; Seehausen, O; Knight, M E; Allender, C J; Robinson, R L

    2001-03-01

    The endemic cichlid fishes of Lakes Malawi, Tanganyika and Victoria are textbook examples of explosive speciation and adaptive radiation, and their study promises to yield important insights into these processes. Accurate estimates of species richness of lineages in these lakes, and elsewhere, will be a necessary prerequisite for a thorough comparative analysis of the intrinsic and extrinsic factors influencing rates of diversification. This review presents recent findings on the discoveries of new species and species flocks and critically appraises the relevant evidence on species richness from recent studies of polymorphism and assortative mating, generally using behavioural and molecular methods. Within the haplochromines, the most species-rich lineage, there are few reported cases of postzygotic isolation, and these are generally among allopatric taxa that are likely to have diverged a relatively long time in the past. However, many taxa, including many which occur sympatrically and do not interbreed in nature, produce viable, fertile hybrids. Prezygotic barriers are more important, and persist in laboratory conditions in which environmental factors have been controlled, indicating the primary importance of direct mate preferences. Studies to date indicate that estimates of alpha (within-site) diversity appear to be robust. Although within-species colour polymorphisms are common, these have been taken into account in previous estimates of species richness. However, overall estimates of species richness in Lakes Malawi and Victoria are heavily dependent on the assignation of species status to allopatric populations differing in male colour. Appropriate methods for testing the specific status of allopatric cichlid taxa are reviewed and preliminary results presented.

  13. 49 CFR 1515.5 - Appeal of Initial Determination of Threat Assessment based on criminal conviction, immigration...

    Science.gov (United States)

    2010-10-01

    ... Assessment based on criminal conviction, immigration status, or mental capacity. 1515.5 Section 1515.5... criminal conviction, immigration status, or mental capacity. (a) Scope. This section applies to applicants... the immigration status requirements as described in 49 CFR 1572.105. (3) TSA has determined that an...

  14. 20 CFR 410.250 - Effect of conviction of felonious and intentional homicide on entitlement to benefits.

    Science.gov (United States)

    2010-04-01

    ... intentional homicide on entitlement to benefits. 410.250 Section 410.250 Employees' Benefits SOCIAL SECURITY... conviction of felonious and intentional homicide on entitlement to benefits. An individual who has been finally convicted by a court of competent jurisdiction of the felonious and intentional homicide of a...

  15. Overconfidence in psychosis: The foundation of delusional conviction?

    Directory of Open Access Journals (Sweden)

    Ryan P. Balzan

    2016-12-01

    Full Text Available A number of recent studies have identified an “overconfidence effect” in psychosis, whereby people with schizophrenia are overconfident in errors while simultaneously slightly underconfident when accurate. This effect may have implications for why delusions, which are based on inaccurate inferences, perceptions and judgements, are typically held with high conviction. Given the importance the overconfidence effect may have in accounting for delusional conviction, the current narrative review aims to summarise and critique the recent evidence for the effect within schizophrenia. People with schizophrenia were consistently found to be overconfident in errors and slightly underconfident in correct appraisals, and this effect appears not to be an artefact of poor task performance. While the overconfidence effect has been linked to delusion-proneness in the general population, there was less direct evidence linking overconfidence to delusional symptoms in clinical populations. Future studies need to adopt longitudinal designs and include additional measures of overconfidence to investigate this association more appropriately, and to also investigate possible mediators of this postulated relationship, such as dopaminergic activity.

  16. An analysis of OWI arrests and convictions in Iowa.

    Science.gov (United States)

    2011-07-01

    The primary goal of the project was to document the demographic profile of OWI offenders in Iowa. The study is based on both aggregate and case-level data. The case level data produced a final sample of 118,675 OWI convictions. That occurred from 200...

  17. Convicted by a bite mark, Ted Bundy (1946-1989).

    Science.gov (United States)

    Riaud, Xavier

    2014-01-01

    The identification of a murderer and the eventual conviction was largely due to forensic dentistry and in particular the use of bite marks on the victim compared with casts of the teeth of the accused. The Bundy case has become notorious in American legal circles.

  18. Diet and food consumption of the pearl cichlid Geophagus brasiliensis (Teleostei: Cichlidae: relationships with gender and sexual maturity

    Directory of Open Access Journals (Sweden)

    Rodrigo F. Bastos

    Full Text Available Despite the importance of the pearl cichlid Geophagus brasiliensis for the aquarium fish trade worldwide and its wide distribution, many aspects of its biology, such as the relationships between its feeding ecology and reproductive behavior, are not fully understood in natural conditions on its native habitat. In this paper, we investigated its diet focusing on how differences in diet and food consumption are related to differences in gender and sexual maturity. The digestive tract of each individual was dissected and had its content analyzed, whereas each gonad was microscopically analyzed to determine gender (male/female and sexual maturity (immature/mature. A total of 28 females and 31 males were analyzed. Mature individuals were more common than immature specimens both for males (64.50% and females (64.30%. The analysis of 52 individuals with non-empty digestive tracts revealed a diet comprised of 27 items. According to the Index of Alimentary importance (%IAi, the most important food items in the diet were Gastropoda (37.30%, fragments of vascular plants (15.16%, detritus (10.14%, Amphipoda (9.24%, and fish scales (6.29%. Mature males had more empty stomachs (65.00% when compared to immature males (27.27% and immature (55.56% and mature females (40.00%. Also, mature females seemed to have more food consumption (greater mean values of total volume in their digestive tracts than mature males. Some hypotheses are proposed in order to distinguish if this gender-based difference in food consumption in mature individuals of the pearl cichlid could be associated with the development of primary and secondary sexual characteristics or with asymmetrical time invested in parental care activities.

  19. Repeated trans-watershed hybridization among haplochromine cichlids (Cichlidae) was triggered by Neogene landscape evolution.

    Science.gov (United States)

    Schwarzer, Julia; Swartz, Ernst Roelof; Vreven, Emmanuel; Snoeks, Jos; Cotterill, Fenton Peter David; Misof, Bernhard; Schliewen, Ulrich Kurt

    2012-11-07

    The megadiverse haplochromine cichlid radiations of the East African lakes, famous examples of explosive speciation and adaptive radiation, are according to recent studies, introgressed by different riverine lineages. This study is based on the first comprehensive mitochondrial and nuclear DNA dataset from extensive sampling of riverine haplochromine cichlids. It includes species from the lower River Congo and Angolan (River Kwanza) drainages. Reconstruction of phylogenetic hypotheses revealed the paradox of clearly discordant phylogenetic signals. Closely related mtDNA haplotypes are distributed thousands of kilometres apart and across major African watersheds, whereas some neighbouring species carry drastically divergent mtDNA haplotypes. At shallow and deep phylogenetic layers, strong signals of hybridization are attributed to the complex Late Miocene/Early Pliocene palaeohistory of African rivers. Hybridization of multiple lineages across changing watersheds shaped each of the major haplochromine radiations in lakes Tanganyika, Victoria, Malawi and the Kalahari Palaeolakes, as well as a miniature species flock in the Congo basin (River Fwa). On the basis of our results, introgression occurred not only on a spatially restricted scale, but massively over almost the whole range of the haplochromine distribution. This provides an alternative view on the origin and exceptional high diversity of this enigmatic vertebrate group.

  20. A sensory bias has triggered the evolution of egg-spots in cichlid fishes.

    Directory of Open Access Journals (Sweden)

    Bernd Egger

    Full Text Available Although, generally, the origin of sex-limited traits remains elusive, the sensory exploitation hypothesis provides an explanation for the evolution of male sexual signals. Anal fin egg-spots are such a male sexual signal and a key characteristic of the most species-rich group of cichlid fishes, the haplochromines. Males of about 1500 mouth-brooding species utilize these conspicuous egg-dummies during courtship--apparently to attract females and to maximize fertilization success. Here we test the hypothesis that the evolution of haplochromine egg-spots was triggered by a pre-existing bias for eggs or egg-like coloration. To this end, we performed mate-choice experiments in the basal haplochromine Pseudocrenilabrus multicolor, which manifests the plesiomorphic character-state of an egg-spot-less anal fin. Experiments using computer-animated photographs of males indeed revealed that females prefer images of males with virtual ('in-silico' egg-spots over images showing unaltered males. In addition, we tested for color preferences (outside a mating context in a phylogenetically representative set of East African cichlids. We uncovered a strong preference for yellow, orange or reddish spots in all haplochromines tested and, importantly, also in most other species representing more basal lines. This pre-existing female sensory bias points towards high-quality (carotenoids-enriched food suggesting that it is adaptive.

  1. A COMPARATIVE-STUDY OF STIMULUS SELECTION IN THE FILIAL FOLLOWING RESPONSE OF FRY OF SUBSTRATE SPAWNING CICHLID FISH

    NARCIS (Netherlands)

    BAERENDS, GP

    This paper reports on experimental research undertaken to analyse the information processing mechanism by which the fry of substrate spawning cichlid fish visually recognise their guarding parent(s), already from the earliest time they are able to swim. The study is inspired by LORENZ' concept of

  2. 38 CFR 38.618 - Findings concerning commission of a capital crime where a person has not been convicted due to...

    Science.gov (United States)

    2010-07-01

    ... commission of a capital crime where a person has not been convicted due to death or flight to avoid... of a capital crime where a person has not been convicted due to death or flight to avoid prosecution... committed a Federal or State capital crime of which he or she was not convicted due to death or flight to...

  3. Age, growth, and mortality of the Mayan cichlid (Cichlasoma urophthalmus) from the southeastern Everglades

    OpenAIRE

    Faunce, Craig H.; Patterson, Heather M.; Lorenz, Jerome J.

    2002-01-01

    Mayan cichlids (Cichlasoma urophthalmus) were collected monthly from March 1996 to October 1997 with hook-and-line gear at Taylor River, Florida, an area within the Crocodile Sanctuary of Everglades National Park, where human activities such as fishing are prohibited. Fish were aged by examining thin-sectioned otoliths, and past size-at-age information was generated by using back-calculation techniques. Marginal increment analysis showed that opaque growth zones were annuli deposited between ...

  4. New science, old convictions - Texas Senate Bill 344: identifying further necessary reform in forensic science.

    Science.gov (United States)

    Soni, Naina

    2015-02-01

    In June 2013, Texas Senate Bill 344 (SB 344) was signed into law after strong Innocence Project support. SB 344 has since transformed the Texan judicial landscape. Known as the 'Junk Science Writ', SB 344 enables the court to grant habeas corpus relief based on scientific evidence that '(1) was not available to be offered by a convicted person at the convicted person's trial; or (2) contradicts scientific evidence relied on by the state at trial'. Inmates, such as the 'San Antonio Four', whose convictions were based upon what is now considered 'faulty' medical and forensic testimony, have been released under SB 344. Yet, science, as a field dependent on innovation, is inherently prone to debunking the scientific and forensic methods the law has relied upon to convict individuals. This commentary identifies policy behind SB 344, how SB 344 may influence the perception of science in the courtroom, and how 'junk science' is defined and/or limited. Furthermore, this commentary concludes that to achieve justice in the legal system through habeas relief based on 'junk science', it is necessary to revitalize and standardize forensic science.

  5. Current status and future challenges of programs for men convicted of gender violence in Spain

    Directory of Open Access Journals (Sweden)

    Pablo Carbajosa

    2013-08-01

    Full Text Available Programmes involving men convicted of intimate partner violence are subject to a wide range of discussions these days. There are numerous international debates regarding programmes aimed at men convicted of intimate partner violence. Some of the most controversial issues are: a intervention approaches, b the possibility of performing specific treatments according to the offender's characteristics, or c the need to take account of external factors such as institutional coordination or the specifics of the therapeutical process (context, therapeutical alliance, motivation of the convict, and the therapist. The aim of this article is to review the main themes that are the focus of this international debate and weigh their impact on the research and the principal programmes that exist in Spain for men convicted of gender violence. The conclusions show that research in Spain is gradually incorporating the topics identified internationally such as the efficacy of programmes in different contexts, the existence of typologies, motivational aspects, analysis of dropouts, risk factors, cultural aspects, or offenders' addictions problems. Nevertheless, it appears necessary to more closely align the programmes with the characteristics of the aggressor.

  6. Drunk Driving Conviction Not Sufficient to Dismiss Tenured Teacher.

    Science.gov (United States)

    Flygare, Thomas J.

    1983-01-01

    Recounts the case of "Turk v. Franklin Special School District" in Tennessee, in which the board's dismissal of a teacher was reversed by the Tennessee Supreme Court because the board failed to follow its own dismissal procedures and because the particular drunk driving conviction did not warrant dismissal. (RW)

  7. A profile of adolescent drivers convicted of felony drunk driving

    Science.gov (United States)

    1996-01-01

    This study investigates, in case study format, all underage drivers in Michigan convicted of operating under the influence of liquor and causing a death (OUIL-death) during the two years following the enactment of this felony crime. All eight underag...

  8. Can moral convictions motivate the advantaged to challenge social inequality? Extending the social identity model of collective action

    NARCIS (Netherlands)

    Van Zomeren, M.; Postmes, T.; Spears, R.; Bettache, K.

    This article examines whether and how moral convictions, defined as strong and absolute stances on moralized issues, motivate advantaged group members to challenge social inequality. Specifically, we propose that violations of moral convictions against social inequality motivate collective action

  9. Intelligence, previous convictions and interrogative suggestibility: a path analysis of alleged false-confession cases.

    Science.gov (United States)

    Sharrock, R; Gudjonsson, G H

    1993-05-01

    The main purpose of this study was to investigate the relationship between interrogative suggestibility and previous convictions among 108 defendants in criminal trials, using a path analysis technique. It was hypothesized that previous convictions, which may provide defendants with interrogative experiences, would correlate negatively with 'shift' as measured by the Gudjonsson Suggestibility Scale (Gudjonsson, 1984a), after intelligence and memory had been controlled for. The hypothesis was partially confirmed and the theoretical and practical implications of the findings are discussed.

  10. A new fossil cichlid from the Middle Miocene in the East African Rift Valley (Tugen Hills, Central Kenya: First record of a putative Ectodini

    Directory of Open Access Journals (Sweden)

    Melanie Altner

    2015-11-01

    Full Text Available Identification of fossil cichlids is difficult, because the currently used diagnostic morphological characters for living cichlids are mostly soft tissue based and such characters are hardly preserved in fossils. During our recent fieldwork in the Central Kenya Rift (E-Africa, we discovered several exceptionally well-preserved fossil cichlids, which can be assigned to different lineages among the African Pseudocrenilabrinae. Here we present one of those new specimens. Its most conspicuous character is a lateral line divided into three segments. This specimen was found in the lacustrine sediments of the Middle Miocene site Waril, Tugen Hills, Kenya. The site represents the deposits of an ancient freshwater lake ca. 9-10 million years ago. Previous work on fossil leaves from the same site allow for the reconstruction of open vegetation surrounding the lake and pronounced dry seasons. Among the main further characteristics of the new fossil cichlid is a lachrimal with six lateral line canals, big cycloid scales and a low number of dorsal fin spines (XIII. The latter two characters are traceable in several members of tribes within the Pseudocrenilabrinae. However, a lachrimal with six lateral line canals is exclusively found in certain tribes of the EAR (East African Radiation within the Pseudocrenilabrinae. Moreover, the unique lateral line pattern is solely present in two genera of the EAR tribe Ectodini. However, the fossil shows cycloid scales, while modern Ectodini have ctenoid scales. Taken all evidence together, this fossil may perhaps represent an ancient lineage related to the Ectodini. Up to date, there is no definite fossil record of the members of the EAR. Our fossil may represent the first reliable calibration point for this group, which would be consistent with the previously reconstructed diversification time of the H-lineage (EAR tribes, except Boulengerochromini, Bathybatini, Trematocarini and Lamprologini and the Lamprologini ca

  11. Hedgehog signaling mediates adaptive variation in a dynamic functional system in the cichlid feeding apparatus.

    Science.gov (United States)

    Hu, Yinan; Albertson, R Craig

    2014-06-10

    Adaptive variation in the craniofacial skeleton is a key component of resource specialization and habitat divergence in vertebrates, but the proximate genetic mechanisms that underlie complex patterns of craniofacial variation are largely unknown. Here we demonstrate that the Hedgehog (Hh) signaling pathway mediates widespread variation across a complex functional system that affects the kinematics of lower jaw depression--the opercular four-bar linkage apparatus--among Lake Malawi cichlids. By using a combined quantitative trait locus mapping and population genetics approach, we show that allelic variation in the Hh receptor, ptch1, affects the development of distinct bony elements in the head that represent two of three movable links in this functional system. The evolutionarily derived allele is found in species that feed from the water column, and is associated with shifts in anatomy that translate to a four-bar system capable of faster jaw rotation. Alternatively, the ancestral allele is found in species that feed on attached algae, and is associated with the development of a four-bar system that predicts slower jaw movement. Experimental manipulation of the Hh pathway during cichlid development recapitulates functionally salient natural variation in craniofacial geometry. In all, these results significantly extend our understanding of the mechanisms that fine-tune the craniofacial skeletal complex during adaptation to new foraging niches.

  12. New science, old convictions − Texas Senate Bill 344: identifying further necessary reform in forensic science

    Science.gov (United States)

    Soni, Naina

    2015-01-01

    In June 2013, Texas Senate Bill 344 (SB 344) was signed into law after strong Innocence Project support. SB 344 has since transformed the Texan judicial landscape. Known as the ‘Junk Science Writ’, SB 344 enables the court to grant habeas corpus relief based on scientific evidence that ‘(1) was not available to be offered by a convicted person at the convicted person's trial; or (2) contradicts scientific evidence relied on by the state at trial’. Inmates, such as the ‘San Antonio Four’, whose convictions were based upon what is now considered ‘faulty’ medical and forensic testimony, have been released under SB 344. Yet, science, as a field dependent on innovation, is inherently prone to debunking the scientific and forensic methods the law has relied upon to convict individuals. This commentary identifies policy behind SB 344, how SB 344 may influence the perception of science in the courtroom, and how ‘junk science’ is defined and/or limited. Furthermore, this commentary concludes that to achieve justice in the legal system through habeas relief based on ‘junk science’, it is necessary to revitalize and standardize forensic science. PMID:27774192

  13. ‘A Very Fair Statement of His Past Life’: Transported Convicts, Former Lives and Previous Offences

    Directory of Open Access Journals (Sweden)

    Helen Rogers

    2015-10-01

    Full Text Available As mass digitization brings new opportunities for analysing criminal and convict records, this article considers how we can recover the personal histories of the convicted. It proposes ‘intimate reading’ as a complementary approach to large-scale data mining and distant reading methods currently being developed to analyse large prison cohorts. Immersive reading, integrating quantitative and qualitative analysis of multiple sources, permits investigation of specific individuals, their interaction with others, and their engagement – however unequal – with the record-makers. It helps us detect the agency of those who have left few traces of personal testimony but whose lives were captured in abstract information garnered by officialdom. The article focuses on male convicts who served time at Great Yarmouth in the 1830s and 1840s and were transported to Van Diemen’s Land where arrivals were interrogated on their offending histories, occupations and family ties, and their bodies inspected for distinguishing characteristics. Comparing convict records with other documentation on their former lives allows us to explore what exiles revealed and concealed from the authorities about their past. Social profiling of this group exposes patterns in employment, family and social networks that are not so readily apparent when reading fragmentary evidence of individual lives. Small-scale data analysis enables us to decode the more personal testimony unwittingly preserved by the penal authorities when they transcribed the convicts’ tattoos. The article concludes with an intimate reading of the elaborate tattoos of one Yarmouth convict that spectacularly depicted the man he felt himself to be.

  14. Schizophrenia and Crime: How Predictable Are Charges, Convictions and Violence?

    Science.gov (United States)

    Heinrichs, R. Walter; Sam, Eleanor P.

    2012-01-01

    The schizophrenia-crime relationship was studied in 151 research participants meeting DSM-IV criteria for schizophrenia or schizoaffective disorder and with histories positive or negative for criminal charges, convictions and offences involving violence. These crime-related variables were regressed on a block of nine predictors reflecting…

  15. Personality disorder in convicted Jamaican murderers.

    Science.gov (United States)

    Hickling, F W; Walcott, G

    2013-01-01

    To establish the aetiology and historical prevalence of personality disorder in violent homicidal men in Jamaica. Examination and analysis of primary data from the psychosocial case study interviews of 36 convicted murderers from the Jamaican Government Barnett Commission of Enquiry in 1976. The disaggregated social and clinical data were analysed using a Chi-square statistical analysis. The mean age at time of arrest for the male convicted murderers was 24.26 ± 8.48 years. Twenty-three (66%) of the subjects had loving relationships with mothers, particularly in those men reared in the rural areas. Twenty-one (59%) cases showed marked paternal rejection and absence of integrated family life. Twenty-four (69%) of the cases experienced severe parental disciplinary methods, and two-thirds were illiterate or barely literate. Twenty-nine (83%) were from very poor socio-economic conditions. Thirty (86%) of all the murder victims were adult males. There were significant differences between the urban reared murderers (URM) and rural reared murderers (RRM). Sixteen (94%) of the victims of the URM ensued from robbery and police confrontation, while 13 (72%) of the victims of the RRM resulted from domestic disputes (p < 0.00). Seventeen (49%) of the men had normal personalities; 18 (51%) were diagnosed as having antisocial and inadequate personalities. Diagnosis of primary data using Diagnostic and Statistical Manual of Mental Disorders fourth edition, text revision (DSM-IV-TR) criteria revealed 23 (66%) men with Antisocial Personality Disorder (APD). There were significantly more APD in the URM than the RRM (p < 0.01). Antisocial personality disorder as an aetiological precursor of homicidal violence represents a major public health problem in contemporary Jamaica.

  16. Cichlid Fishes in the Angolan Headwaters Region: Molecular Evidence of the Ichthyofaunal Contact between the Cuanza and Okavango-Zambezi Systems

    Science.gov (United States)

    Musilová, Zuzana; Kalous, Lukáš; Petrtýl, Miloslav; Chaloupková, Petra

    2013-01-01

    The headwaters of five large African river basins flow through the Bié Plateau in Angola and still remain faunistically largely unexplored. We investigated fish fauna from the Cuanza and Okavango-Zambezi river systems from central Angola. We reconstructed molecular phylogenies of the most common cichlid species from the region, Tilapia sparrmanii and Serranochromis macrocephalus, using both mitochondrial and nuclear markers. We found evidence for ichthyofaunal contact and gene flow between the Cuanza and Okavango-Zambezi watersheds in the Bié Plateau in central Angola. Waterfalls and rapids also appeared to restrict genetic exchange among populations within the Cuanza basin. Further, we found that the Angolan Serranochromis cichlid fishes represent a monophyletic lineage with respect to other haplochromines, including the serranochromines from the Congo and Zambezi rivers. This study represents an important initial step in a biodiversity survey of this extremely poorly explored region, as well as giving further understanding to species distributions and gene flow both between and within river basins. PMID:23724120

  17. Discordant genetic diversity and geographic patterns between Crassicutis cichlasomae (Digenea: Apocreadiidae) and its cichlid host, "Cichlasoma" urophthalmus (Osteichthyes: Cichlidae), in Middle-America.

    Science.gov (United States)

    Razo-Mendivil, Ulises; Vázquez-Domínguez, Ella; de León, Gerardo Pérez-Ponce

    2013-12-01

    Genetic analyses of hosts and their parasites are key to understand the evolutionary patterns and processes that have shaped host-parasite associations. We evaluated the genetic structure of the digenean Crassicutis cichlasomae and its most common host, the Mayan cichlid "Cichlasoma" urophthalmus, encompassing most of their geographical range in Middle-America (river basins in southeastern Mexico, Belize, and Guatemala together with the Yucatan Peninsula). Genetic diversity and structure analyses were done based on 167 cytochrome c oxidase subunit 1 sequences (330 bp) for C. cichlasomae from 21 populations and 161 cytochrome b sequences (599 bp) for "C." urophthalmus from 26 populations. Analyses performed included phylogenetic tree estimation under Bayesian inference and maximum likelihood analysis, genetic diversity, distance and structure estimates, haplotype networks, and demographic evaluations. Crassicutis cichlasomae showed high genetic diversity values and genetic structuring, corresponding with 4 groups clearly differentiated and highly divergent. Conversely, "C." urophthalmus showed low levels of genetic diversity and genetic differentiation, defined as 2 groups with low divergence and with no correspondence with geographical distribution. Our results show that species of cichlids parasitized by C. cichlasomae other than "C." urophthalmus, along with multiple colonization events and subsequent isolation in different basins, are likely factors that shaped the genetic structure of the parasite. Meanwhile, historical long-distance dispersal and drought periods during the Holocene, with significant population size reductions and fragmentations, are factors that could have shaped the genetic structure of the Mayan cichlid.

  18. New science, old convictions ? Texas Senate Bill 344: identifying further necessary reform in forensic science

    OpenAIRE

    Soni, Naina

    2015-01-01

    In June 2013, Texas Senate Bill 344 (SB 344) was signed into law after strong Innocence Project support. SB 344 has since transformed the Texan judicial landscape. Known as the ?Junk Science Writ?, SB 344 enables the court to grant habeas corpus relief based on scientific evidence that ?(1) was not available to be offered by a convicted person at the convicted person's trial; or (2) contradicts scientific evidence relied on by the state at trial?. Inmates, such as the ?San Antonio Four?, whos...

  19. 78 FR 9766 - Individuals With Certain Criminal Convictions as Representative Payees

    Science.gov (United States)

    2013-02-11

    ...-800-325-0778, or visit our Internet site, Social Security Online, at http://www.socialsecurity.gov... Act prohibits from serving as representative payees persons convicted of Social Security fraud \\1\\ and... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0076] Individuals With Certain Criminal...

  20. Moral Convictions and Culling Animals: A Survey in the Netherlands

    NARCIS (Netherlands)

    Cohen, N.E.; Brom, F.W.A.; Stassen, E.N.

    2012-01-01

    In this paper the results are presented of a national survey in the Netherlands. The aim was to identify and describe the convictions about animals that people have in Dutch society and the role of these in judgments on the culling of healthy animals during an animal disease epidemic. A total of

  1. Risk of being convicted of theft and other crimes in anorexia nervosa and bulimia nervosa: A prospective cohort study in a Swedish female population.

    Science.gov (United States)

    Yao, Shuyang; Kuja-Halkola, Ralf; Thornton, Laura M; Norring, Claes; Almqvist, Catarina; D'Onofrio, Brian M; Lichtenstein, Paul; Långström, Niklas; Bulik, Cynthia M; Larsson, Henrik

    2017-09-01

    We examined epidemiological associations between anorexia nervosa (AN) and bulimia nervosa (BN) and risks of committing theft and other crimes in a nationwide female population. Females born in Sweden during 1979-1998 (N = 957,106) were followed from age 15 for up to 20 years using information on clinically diagnosed AN and BN (exposures), convictions of theft and other crimes (outcomes), psychiatric comorbidities, and familial relatedness from Swedish national registers. We estimated hazard ratios (HRs) of criminality in exposed versus unexposed females using Cox proportional hazards regressions and explored how comorbidities and unmeasured familial factors explained the associations. The cumulative incidence of convictions of theft (primarily petty theft) and other crimes was higher in exposed females (AN: 11.60% theft, 7.39% other convictions; BN: 17.97% theft, 13.17% other convictions) than in unexposed females (∼5% theft, ∼6% other convictions). The significantly increased risk of being convicted of theft in exposed females (AN: HR = 2.51, 95% confidence interval = [2.29, 2.74], BN: 4.31 [3.68, 5.05]) was partially explained by comorbidities; unmeasured familial factors partially explained the association with convictions of theft in BN but not in AN. Females with BN had a doubled risk of convictions of other crimes, which was partially explained by comorbidities. Individuals with eating disorders had increased risk for convictions of theft and potentially other crimes. Results underscore the importance of regular forensic screening and encourage research on mechanisms underlying the relation between crime and eating disorder psychopathology and efforts to determine how best to address such relation in treatment. © 2017 Wiley Periodicals, Inc.

  2. Drink-driving convictions and the effect of lowering the BAC levels

    DEFF Research Database (Denmark)

    Christoffersen, Mogens

    .g. disadvantages during adolescence, severe psychological problems, prior criminal history, living in rural vs. metropolitan area, and their present social position, e.g. educational background). In order to evaluate the effect of changed legislation on the incidence of first-time drink-driving convictions among...

  3. The effects of social isolation on steroid hormone levels are modulated by previous social status and context in a cichlid fish.

    Science.gov (United States)

    Galhardo, L; Oliveira, R F

    2014-01-01

    Social isolation is a major stressor which impacts the physiology, behaviour and health of individuals in gregarious species. However, depending on conditional and contextual factors, such as social status and group composition, social isolation may be perceived differently by different individuals or even by the same individuals at different times. Here we tested the effects of social status (territorial vs. non-territorial) and previous group composition (i.e. type of social group: mixed sex group with two territorial males, TT vs. mixed sex group with one territorial and one non-territorial male, TnT) on the hormonal response (androgens and cortisol) to social isolation in a cichlid fish (Oreochromis mossambicus). The different steroid hormones measured responded differentially to social isolation, and their response was modulated by social factors. Social isolation elicited a decrease of 11-keto formation only in territorial males, whereas non-territorial males present a non-significant trend for increasing KT levels. Testosterone did not respond to social isolation. Cortisol only increased in isolated individuals from TnT groups irrespective of social status (i.e. both in territorials and non-territorials). These results suggest that it is the perception of social isolation and not the objective structure of the situation that triggers the hormonal response to isolation. © 2013.

  4. Sea-change or Atrophy? The Australian Convict Inheritance

    Directory of Open Access Journals (Sweden)

    Cynthia vanden Driesen

    2011-03-01

    Full Text Available This paper is an offshoot of a larger project which explored the possibility for the erstwhile settler-colonizer undergoing the sea-change into settler-indigene emergent through a study of selected novels of Patrick White. It became apparent to me that the convict figure, who played an ancillary role in these works, could lay claim to the status of white indigene well ahead of the main protagonist. Robert Hughes (in The Fatal Shore discredits the idea of any bonding between the convict and the Aborigine but acknowledges examples of “white blackfellas”—white men who had successfully been adopted into Aboriginal societies. Martin Tucker’s nineteenth century work, Ralph Rashleigh, offers surprising testimony of a creative work which bears this out in a context where Australian literature generally reflected the national amnesia with regard to the Aborigine and barely accorded them human status. Grenville’s The Secret River (2005, based broadly on the history of her own ancestor, appears to support Hughes’ original contention but is also replete with ambivalences that work against a simple resolution. This paper will explore some of the ambivalences, the ‘food for thought’ on aspects of the Australian experience highlighted by these literary texts, and glances briefly also at variations on the theme in Carey’s Jack Maggs and the The True Story of the Kelly Gang.

  5. Distribution and status of five non-native fish species in the Tampa Bay drainage (USA), a hot spot for fish introductions

    Science.gov (United States)

    Lawson, Katelyn M.; Tuckett, Quenton M.; Ritch, Jared L.; Nico, Leo; Fuller, Pam; Matheson, Richard E.; Hill, Jeffrey E.

    2017-01-01

    The Tampa Bay region of Florida (USA) is a hot spot for non-native freshwater fishes. However, published information on most non-native fishes in the basin is not current. Systematic sampling efforts targeting non-native fishes in the region were conducted from 2013–2015 by the University of Florida Tropical Aquaculture Laboratory. Data from these recent surveys were analyzed, along with historic and new data from published and unpublished sources, to assess current fish distributions and determine status. We focus on five of the non-native species sampled: pike killifish Belonesox belizanus Kner, 1860, green swordtail Xiphophorus hellerii Heckel, 1848, southern platyfish Xiphophorus maculatus (Günther, 1866), Mayan cichlid Mayaheros urophthalmus (Günther, 1862), and Jack Dempsey Rocio octofasciata (Regan, 1903). All five were found to have reproducing populations in the basin, each showing broader distributions than previously indicated. Non-native populations of four of the species have persisted in the Tampa Bay region since at least the 1990s. In contrast, the presence of Mayan cichlid in the basin was not confirmed until 2004. Based on numbers, distributions, and years of persistence, these five species all maintain established populations. Pike killifish and Mayan cichlid are established and spreading throughout multiple habitat types, while green swordtail, southern platyfish, and Jack Dempsey are localized and found primarily in more marginal habitats (e.g., small ditches and first order tributary streams). Factors affecting continued existence and distributions likely include aquaculture, biotic resistance, and thermal and salinity tolerances. We also clarify non-native species status determination using a multi-agency collaborative approach, and reconcile differences in terminology usage and interpretation.

  6. Community genetics reveal elevated levels of sympatric gene flow among morphologically similar but not among morphologically dissimilar species of Lake Victoria cichlid fish

    NARCIS (Netherlands)

    Konijnendijk, N.; Joyce, D.A.; Mrosso, H.D.J.; Egas, M.; Seehausen, O.

    2011-01-01

    We examined genetic structure among five species of Lake Victoria haplochromine cichlids in four island communities, using a full factorial sampling design that compared genetic differentiation between pairs of species and populations of varying morphological similarity and geographical proximity.

  7. Parsing parallel evolution: ecological divergence and differential gene expression in the adaptive radiations of thick-lipped Midas cichlid fishes from Nicaragua.

    Science.gov (United States)

    Manousaki, Tereza; Hull, Pincelli M; Kusche, Henrik; Machado-Schiaffino, Gonzalo; Franchini, Paolo; Harrod, Chris; Elmer, Kathryn R; Meyer, Axel

    2013-02-01

    The study of parallel evolution facilitates the discovery of common rules of diversification. Here, we examine the repeated evolution of thick lips in Midas cichlid fishes (the Amphilophus citrinellus species complex)-from two Great Lakes and two crater lakes in Nicaragua-to assess whether similar changes in ecology, phenotypic trophic traits and gene expression accompany parallel trait evolution. Using next-generation sequencing technology, we characterize transcriptome-wide differential gene expression in the lips of wild-caught sympatric thick- and thin-lipped cichlids from all four instances of repeated thick-lip evolution. Six genes (apolipoprotein D, myelin-associated glycoprotein precursor, four-and-a-half LIM domain protein 2, calpain-9, GTPase IMAP family member 8-like and one hypothetical protein) are significantly underexpressed in the thick-lipped morph across all four lakes. However, other aspects of lips' gene expression in sympatric morphs differ in a lake-specific pattern, including the magnitude of differentially expressed genes (97-510). Generally, fewer genes are differentially expressed among morphs in the younger crater lakes than in those from the older Great Lakes. Body shape, lower pharyngeal jaw size and shape, and stable isotopes (δ(13)C and δ(15)N) differ between all sympatric morphs, with the greatest differentiation in the Great Lake Nicaragua. Some ecological traits evolve in parallel (those related to foraging ecology; e.g. lip size, body and head shape) but others, somewhat surprisingly, do not (those related to diet and food processing; e.g. jaw size and shape, stable isotopes). Taken together, this case of parallelism among thick- and thin-lipped cichlids shows a mosaic pattern of parallel and nonparallel evolution. © 2012 Blackwell Publishing Ltd.

  8. JURISPRUDENTIAL EXAMINATION REGARDING BIOLOGICAL SAMPLING IN THE CASE OF CONVICTED PERSONS

    Directory of Open Access Journals (Sweden)

    Gabriela\tNEMŢOI

    2015-12-01

    Full Text Available Objectives: The research devotes particular attention to the timing of biological sampling in the case of convicted persons. The main idea of the research is the factual situation regarding the criminal case law, which is not unified; problematic that prevents the formation of the National System of Judicial Genetic Data. Materials and Methods: The study focuses on evaluating the two opinions of jurisprudence on the implementation of the text of the law (Law no. 76/2008. Results: The carried research on different cases has shown that legal text is not mandatory, but its application is arbitrary, at the discretion of the court, but, nevertheless, the biological sampling in the case of convicted persons disregards the form for penalty. Conclusions: In the context of the creation of the National System of Judicial Genetic Data is a control condition on the typology of criminal profiling, we believe that biological sampling should be a priority to ensure safety of the individual.

  9. 24 CFR 1000.152 - How is the recipient to use criminal conviction information?

    Science.gov (United States)

    2010-04-01

    ... the criminal conviction information described in § 1000.150 only for applicant screening, lease... need for the information and who is an authorized officer, employee, or representative of the recipient...

  10. Gonad development in Midas cichlids and the evolution of sex change in fishes.

    Science.gov (United States)

    Oldfield, Ronald G

    2011-01-01

    Some fishes mature and function as one sex and later transform to the other sex in response to social interactions. Previous evidence suggested that a change in developmental timing may be involved in the evolution of adult sex change in fishes. The most recent support for this idea came from reports that sex in the Midas cichlid, Amphilophus citrinellus, was determined by social conditions experienced at the juvenile stage. Differentiation as a male was reported to be dependent on large body size relative to group-mates, and thought to be mediated through aggressive interactions. Here I demonstrate that socially controlled sex determination does not occur as was originally reported. Previously, I found that sex was not associated with body size in juveniles either in nature or in captivity. Similarly, I found no association between aggressive behavior and sex in juveniles. I later demonstrated that socially controlled sex determination does not typically occur in the Midas cichlid and closely related species and supported an alternative mechanism to explain large body size in adult males. Finally, in the current study I analyze gonad histology of fish from the same population used by the original authors and lay to rest the idea of socially controlled sex determination in this species. Recent observations of socially controlled sex determination in juveniles of species that typically change sex at the adult stage are examples of phenotypic plasticity, not genetic variation. Therefore, juvenile socially controlled sex determination does not support a theory that a change in developmental timing is involved in the evolution of adult sex change in fishes. © 2011 Wiley Periodicals, Inc.

  11. A new cryptogonimid (Digenea) from the Mayan cichlid, Cichlasoma urophthalmus (Osteichthyes: Cichlidae), in several localities of the Yucatán Peninsula, Mexico.

    Science.gov (United States)

    Razo-Mendivil, Ulises; Rosas-Valdez, Rogelio; Pérez-Ponce de León, Gerardo

    2008-12-01

    Oligogonotylus mayae n.sp. is described from the intestine of the Mayan cichlid Cichlasoma urophthalmus (Günther) in Ría Lagartos, Ría Celestún, and Estero Progreso, Yucatán State. This is the second species described for Oligogonotylus Watson, 1976, the other being O.manteri Watson, 1976. The new species is readily distinguished from O. manteri by the anterior extension of the vitelline follicles. In O. Manteri, Vitelline follicles are found entirely in the hindbody, extending posteriorly to mid-testicular level. Vitelline follicles in the new species extend from teh anterior margin of posterior testis to the region between the bentral sucker and the pharynx. comparison of approximately 1,850 bases of ribosomal DNA (ITS1, ITS2, 5.8S, and 28S), and 400 bases of cytochrome c oxidase subunit I (cox1) strongly supports the status of O. mayae as a new species, as compared to O. manteri collected from cichlids in other localities of Mexico, Belize, and Guatemala.

  12. Use of "um" in the Deceptive Speech of a Convicted Murderer

    Science.gov (United States)

    Villar, Gina; Arciuli, Joanne; Mallard, David

    2012-01-01

    Previous studies have demonstrated a link between language behaviors and deception; however, questions remain about the role of specific linguistic cues, especially in real-life high-stakes lies. This study investigated use of the so-called filler, "um," in externally verifiable truthful versus deceptive speech of a convicted murderer. The data…

  13. Tolerance of nonindigenous cichlid fishes (Cichlasoma urophthalmus, Hemichromis letourneuxi) to low temperature: laboratory and field experiments in south Florida

    Science.gov (United States)

    Schofield, Pamela J.; Loftus, William F.; Kobza, Robert M.; Cook, Mark I.; Slone, Daniel H.

    2010-01-01

    The cold tolerance of two non-native cichlids (Hemichromis letourneuxi and Cichlasoma urophthalmus) that are established in south Florida was tested in the field and laboratory. In the laboratory, fishes were acclimated to two temperatures (24 and 28°C), and three salinities (0, 10, and 35 ppt). Two endpoints were identified: loss of equilibrium (11.5–13.7°C for C. urophthalmus; 10.8–12.5°C for H. letourneuxi), and death (9.5–11.1°C for C. urophthalmus; 9.1–13.3°C for H. letourneuxi). In the field, fishes were caged in several aquatic habitats during two winter cold snaps. Temperatures were lowest (4.0°C) in the shallow marsh, where no fish survived, and warmest in canals and solution-holes. Canals and ditches as shallow as 50 cm provided thermal refuges for these tropical fishes. Because of the effect on survival of different habitat types, simple predictions of ultimate geographic expansion by non-native fishes using latitude and thermal isoclines are insufficient for freshwater fishes.

  14. 24 CFR 21.225 - What actions must I take concerning employees who are convicted of drug violations in the workplace?

    Science.gov (United States)

    2010-04-01

    ... calendar days of learning about an employee's conviction, you must either— (1) Take appropriate personnel... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false What actions must I take concerning employees who are convicted of drug violations in the workplace? 21.225 Section 21.225 Housing and Urban...

  15. THE LANGUAGE AND IDEOLOGY OF CAPITAL PUNISHMENT FOR DRUG CONVICTS FOUND IN SELECTED OPINIONS IN THE JAKARTA POST

    Directory of Open Access Journals (Sweden)

    Arina Isti’anah

    2016-02-01

    Full Text Available This research is an investigation into the language use in peoples opinions of capital punishment for drug convicts in The Jakarta Post. Capital punishment was executed to six drug convicts on January 18th , 2015. Controversy about this action has risen before and after the execution. People give their opinions in social media, such as Facebook, Twitter, blogs, and newspapers. The Jakarta Post is a well-known English newspaper in Indonesia which has a lot of readers. People choose this newspaper to convey their ideas so that their opinions will be read by people around the world. As the issue about capital punishment is popular recently, this research attempts at finding out peoples ideology about capital punishment for drug convicts. Critical discourse analysis was conducted in this research as an approach to figure out how language use by the people can reveal their ideology of capital punishment. This research focused on observing four opinions of capital punishment for drug convicts in The Jakarta Post. The analysis shows that material processes dominate the opinions, followed by relational, mental and verbal processes. The ideologies revealed in the opinions are power, pessimism, and criticism. Before the execution, pessimism dominates the opinions, while after the execution criticism appears most in the opinions.

  16. Department of Transportation vs self-reported data on motor vehicle collisions and driving convictions for stroke survivors: do they agree?

    Science.gov (United States)

    Finestone, Hillel M; Guo, Meiqi; O'Hara, Paddi; Greene-Finestone, Linda; Marshall, Shawn C; Hunt, Lynn; Jessup, Anita; Biggs, Jennifer

    2011-08-01

    Research on stroke survivors' driving safety has typically used either self-reports or government records, but the extent to which the 2 may differ is not known. We compared government records and self-reports of motor vehicle collisions and driving convictions in a sample of stroke survivors. The 56 participants were originally recruited for a prospective study on driving and community re-integration post-stroke; the study population consisted of moderately impaired stroke survivors without severe communication disorders who had been referred for a driving assessment. The driving records of the 56 participants for the 5 years before study entry and the 1-year study period were acquired with written consent from the Ministry of Transportation of Ontario (MTO), Canada. Self-reports of collisions and convictions were acquired via a semistructured interview and then compared with the MTO records. Forty-three participants completed the study. For 7 (13.5%) the MTO records did not match the self-reports regarding collision involvement, and for 9 (17.3%) the MTO records did not match self-reports regarding driving convictions. The kappa coefficient for the correlation between MTO records and self-reports was 0.52 for collisions and 0.47 for convictions (both in the moderate range of agreement). When both sources of data were consulted, up to 56 percent more accidents and up to 46 percent more convictions were identified in the study population in the 5 years before study entry compared to when either source was used alone. In our population of stroke survivors, self-reports of motor vehicle collisions and driving convictions differed from government records. In future studies, the use of both government and self-reported data would ensure a more accurate picture of driving safety post-stroke.

  17. Antisocial Propensity, Adolescent School Outcomes, and the Risk of Criminal Conviction

    Science.gov (United States)

    Savolainen, Jukka; Hughes, Lorine A.; Mason, W. Alex; Hurtig, Tuula M.; Ebeling, Hanna; Moilanen, Irma K.; Kivivuori, Janne; Taanila, Anja M.

    2012-01-01

    Data from the 1986 Northern Finland Birth Cohort Study (n = 4,645) were used to examine the influence of mid-adolescent (age 15) school outcomes on late-adolescent (ages 17-19) risk of criminal conviction. Consistent with social-developmental theories of offending, we found that poor academic performance and reduced school attachment increase the…

  18. Separated by sand, fused by dropping water: habitat barriers and fluctuating water levels steer the evolution of rock-dwelling cichlid populations in Lake Tanganyika.

    Science.gov (United States)

    Koblmüller, Stephan; Salzburger, Walter; Obermüller, Beate; Eigner, Eva; Sturmbauer, Christian; Sefc, Kristina M

    2011-06-01

    The conditions of phenotypic and genetic population differentiation allow inferences about the evolution, preservation and loss of biological diversity. In Lake Tanganyika, water level fluctuations are assumed to have had a major impact on the evolution of stenotopic littoral species, though this hypothesis has not been specifically examined so far. The present study investigates whether subtly differentiated colour patterns of adjacent Tropheus moorii populations are maintained in isolation or in the face of continuous gene flow, and whether the presumed influence of water level fluctuations on lacustrine cichlids can be demonstrated in the small-scale population structure of the strictly stenotopic, littoral Tropheus. Distinct population differentiation was found even across short geographic distances and minor habitat barriers. Population splitting chronology and demographic histories comply with our expectation of old and rather stable populations on steeper sloping shore, and more recently established populations in a shallower region. Moreover, population expansions seem to coincide with lake level rises in the wake of Late Pleistocene megadroughts ~100 KYA. The imprint of hydrologic events on current population structure in the absence of ongoing gene flow suggests that phenotypic differentiation among proximate Tropheus populations evolves and persists in genetic isolation. Sporadic gene flow is effected by lake level fluctuations following climate changes and controlled by the persistence of habitat barriers during lake level changes. Since similar demographic patterns were previously reported for Lake Malawi cichlids, our data furthermore strengthen the hypothesis that major climatic events synchronized facets of cichlid evolution across the East African Great Lakes. © 2011 Blackwell Publishing Ltd.

  19. The role of conviction and narrative in decision-making under radical uncertainty

    Science.gov (United States)

    Tuckett, David; Nikolic, Milena

    2017-01-01

    We propose conviction narrative theory (CNT) to broaden decision-making theory in order to better understand and analyse how subjectively means–end rational actors cope in contexts in which the traditional assumptions in decision-making models fail to hold. Conviction narratives enable actors to draw on their beliefs, causal models, and rules of thumb to identify opportunities worth acting on, to simulate the future outcome of their actions, and to feel sufficiently convinced to act. The framework focuses on how narrative and emotion combine to allow actors to deliberate and to select actions that they think will produce the outcomes they desire. It specifies connections between particular emotions and deliberative thought, hypothesising that approach and avoidance emotions evoked during narrative simulation play a crucial role. Two mental states, Divided and Integrated, in which narratives can be formed or updated, are introduced and used to explain some familiar problems that traditional models cannot. PMID:28804217

  20. The role of conviction and narrative in decision-making under radical uncertainty.

    Science.gov (United States)

    Tuckett, David; Nikolic, Milena

    2017-08-01

    We propose conviction narrative theory (CNT) to broaden decision-making theory in order to better understand and analyse how subjectively means-end rational actors cope in contexts in which the traditional assumptions in decision-making models fail to hold. Conviction narratives enable actors to draw on their beliefs, causal models, and rules of thumb to identify opportunities worth acting on, to simulate the future outcome of their actions, and to feel sufficiently convinced to act. The framework focuses on how narrative and emotion combine to allow actors to deliberate and to select actions that they think will produce the outcomes they desire. It specifies connections between particular emotions and deliberative thought, hypothesising that approach and avoidance emotions evoked during narrative simulation play a crucial role. Two mental states, Divided and Integrated, in which narratives can be formed or updated, are introduced and used to explain some familiar problems that traditional models cannot.

  1. Induced cytochrome P450 1A activity in cichlid fishes from Guandu River and Jacarepagua Lake, Rio de Janeiro, Brazil

    International Nuclear Information System (INIS)

    Parente, Thiago E.M.; Oliveira, Ana C.A.X. de; Paumgartten, Francisco J.R.

    2008-01-01

    The induction of cytochrome P4501A-mediated activity (e.g. ethoxyresorufin-O-deethylation, EROD) has been used as a biomarker for monitoring fish exposure to AhR-receptor ligands such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and polychlorinated dibenzo-dioxins/furans (PCDD/Fs). In this study we found that hepatic EROD is induced in fish ('Nile tilapia', Oreochromis niloticus and 'acara', Geophagus brasiliensis) from the Guandu River (7-17-fold) and Jacarepagua Lake (7-fold), Rio de Janeiro, Brazil. Since both cichlid fish are consumed by the local population and the Guandu River is the main source of the drinking water supply for the greater Rio de Janeiro metropolitan area, pollution by cytochrome P4501A-inducing chemicals is a cause for concern and should be further investigated in sediments, water and biota. We additionally showed that EROD activity in the fish liver post-mitochondrial supernatant-simpler, cheaper and less time consuming to prepare than the microsomal fraction-is sufficiently sensitive for monitoring purposes. - Increased EROD activity in the liver of cichlid fishes indicated that Guandu River, the source of drinking water supply for Rio de Janeiro is polluted by CYP1A-inducing chemicals

  2. Reducing Delusional Conviction Through a Cognitive-Based Group Training Game: A Multicentre Randomised Controlled Trial

    Directory of Open Access Journals (Sweden)

    Yasser eKhazaal

    2015-04-01

    Full Text Available AbstractObjective: Michael’s Game is a card game targeting the ability to generate alternative hypotheses to explain a given experience. The main objective was to evaluate the effect of MG on delusional conviction as measured by the primary study outcome: the change in scores on the conviction subscale of the Peters Delusions Inventory (PDI-21. Other variables of interest were the change in scores on the distress and preoccupation subscales of the PDI-21, the Brief Psychiatric Rating Scale, the Beck Cognitive Insight Scale, and belief flexibility assessed with the Maudsley Assessment of Delusions Schedule. Methods: We performed a parallel, assessor-blinded, randomised controlled superiority trial comparing treatment as usual plus participation in Michael’s Game (MG with treatment as usual plus being on a waiting list (TAU in a sample of adult outpatients with psychotic disorders and persistent positive psychotic symptoms at inclusion. Results: The 172 participants were randomised, with 86 included in each study arm. Assessments were performed at inclusion (T1: baseline, at 3 months (T2: post-treatment, and at 6 months after the second assessment (T3: follow-up. At T2, a positive treatment effect was observed on the primary outcome, the PDI-21 conviction subscale (p=0.005. At T3, a sustained effect was observed for the conviction subscale (p=0.002. Further effects were also observed at T3 on the PDI-21 distress (p=0.002 and preoccupation subscales (p=0.001, as well as on one of the MADS measures of belief flexibility (anything against the belief (p=0.001. Conclusions: The study demonstrated some significant beneficial effect of MG. http://www.controlled-trials.com/ISRCTN37178153/Funding: Swiss National Science Foundation Grant 32003B-121038

  3. 46 CFR 5.35 - Conviction for a dangerous drug law violation, use of, or addiction to the use of dangerous drugs.

    Science.gov (United States)

    2010-10-01

    ..., or addiction to the use of dangerous drugs. 5.35 Section 5.35 Shipping COAST GUARD, DEPARTMENT OF... Definitions § 5.35 Conviction for a dangerous drug law violation, use of, or addiction to the use of dangerous... complaint will allege conviction for a dangerous drug law violation or use of dangerous drugs or addiction...

  4. Evolution of opercle shape in cichlid fishes from Lake Tanganyika - adaptive trait interactions in extant and extinct species flocks.

    Science.gov (United States)

    Wilson, Laura A B; Colombo, Marco; Sánchez-Villagra, Marcelo R; Salzburger, Walter

    2015-11-20

    Phenotype-environment correlations and the evolution of trait interactions in adaptive radiations have been widely studied to gain insight into the dynamics underpinning rapid species diversification. In this study we explore the phenotype-environment correlation and evolution of operculum shape in cichlid fishes using an outline-based geometric morphometric approach combined with stable isotope indicators of macrohabitat and trophic niche. We then apply our method to a sample of extinct saurichthyid fishes, a highly diverse and near globally distributed group of actinopterygians occurring throughout the Triassic, to assess the utility of extant data to inform our understanding of ecomorphological evolution in extinct species flocks. A series of comparative methods were used to analyze shape data for 54 extant species of cichlids (N = 416), and 6 extinct species of saurichthyids (N = 44). Results provide evidence for a relationship between operculum shape and feeding ecology, a concentration in shape evolution towards present along with evidence for convergence in form, and significant correlation between the major axes of shape change and measures of gut length and body elongation. The operculum is one of few features that can be compared in extant and extinct groups, enabling reconstruction of phenotype-environment interactions and modes of evolutionary diversification in deep time.

  5. The effect of light intensity on prey detection behavior in two Lake Malawi cichlids, Aulonocara stuartgranti and Tramitichromis sp.

    Science.gov (United States)

    Schwalbe, Margot A B; Webb, Jacqueline F

    2015-04-01

    Two sand-dwelling cichlids from Lake Malawi (Aulonocara stuartgranti, Tramitichromis sp.) that feed on benthic invertebrates, but have different lateral line phenotypes, use lateral line and/or visual cues to detect prey under light versus dark conditions. The current study examined how ecologically relevant variation in light intensity [0-800 lux (lx)] influences detection of prey (mobile, immobile) in each species by analyzing six behavioral parameters. Both species fed at light intensities ≥1 lx and trends in behavior among light intensities were informative. However, prey type and/or time of day (but not light intensity) predicted all four parameters analyzed with generalized linear mixed models in A. stuartgranti, whereas the interaction of light intensity and time of day predicted three of these parameters in Tramitichromis sp. Data suggest that the critical light intensity is 1-12 lx for both species, that the integration of visual and lateral line input explains differences in detection of mobile and immobile prey and behavioral changes at the transition from 1 to 0 lx in A. stuartgranti, and that Tramitichromis sp. likely uses binocular vision to locate prey. Differences in the sensory biology of species that exploit similar prey will have important implications for the trophic ecology of African cichlid fishes.

  6. Explanatory and Predictor Relationships Between Forgiving Behaviors, Social Anxiety Levels and Values of Convict-Prisoners in Penal Institutions

    Directory of Open Access Journals (Sweden)

    Sidika Isler

    2016-05-01

    Full Text Available The purpose of the present research is revealing the correlations between social anxiety, forgiveness and values among convict-prisoners in penal institutions. Relational screening model was adopted in the present research. Relational screening is used to reveal the relationships between two or more variables, and cause-and-effect relationships. The universe of the present research consists of convicts and prisoners in Konya penal institutions in 2013-2014 years. The work group of the present research consists of 680 volunteer convicts and prisoners selected randomly among these. The data collection tool in research value scale, the scale of forgiveness and social anxiety scale was used. The results obtained from this study; The findings of the present research showed that the most important independent variable that affected values was forgiveness, In addition, the most important variable that affects social anxiety in the tested model is values variable and Additionally, second most important variable that affects social anxiety indirectly in the tested model is forgiveness variable.

  7. Differences between health and ethical vegetarians. Strength of conviction, nutrition knowledge, dietary restriction, and duration of adherence.

    Science.gov (United States)

    Hoffman, Sarah R; Stallings, Sarah F; Bessinger, Raymond C; Brooks, Gary T

    2013-06-01

    Little research has been published concerning the differences between health oriented and ethically oriented vegetarians. The present study compared differences in conviction, nutrition knowledge, dietary restriction, and duration of adherence to vegetarianism between the two groups. Subjects completed an online survey and were grouped by original reason for becoming vegetarian (n=292, 58 health, 234 ethical), and current reason for remaining vegetarian (n=281, 49 health, 232 ethical). Whether grouped by current or original motivation, ethical vegetarians scored higher on the conviction instrument than health vegetarians and exhibited somewhat greater dietary restriction (significant when grouped by current motivation) and had been vegetarian for longer (significant when grouped by original motivation). Nutrition knowledge did not differ between the two groups. The results suggest that ethical vegetarians could experience stronger feelings of conviction and consume fewer animal products than health vegetarians, and may remain vegetarian longer. More research is necessary to understand how vegetarians' eating behaviors are influenced by their motivational profiles. Copyright © 2013 Elsevier Ltd. All rights reserved.

  8. Self-reported sexual assault in convicted sex offenders and community men.

    Science.gov (United States)

    Widman, Laura; Olson, Michael A; Bolen, Rebecca M

    2013-05-01

    Although self-reported sexual assault perpetrated by men against women has been well documented among college men, less is known about self-reported perpetration among convicted sex offenders and community men. This study provides unique descriptive and comparative information on sexual assaults in these understudied populations. Participants were 40 convicted sex offenders and 49 demographically comparable community men who completed the Sexual Experiences Survey (SES; Abbey, Parkhill, & Koss, 2005; Koss, Gidycz, & Wisniewski, 1987) and other surveys to capture the promiscuous sex and hostile masculinity pathways posited by the confluence model (Malamuth, 2003). We found notably few differences between sex offenders and community men in the rate and severity of sexual assault perpetration and the tactics used to obtain unwanted sexual contact. Specifically, 68% of sex offenders and 59% of community men acknowledged they had perpetrated sexual assault. Both groups used guilt and anger as the most frequent tactics to obtain unwanted sexual activity from their female victims. Consistent with the confluence model, an impersonal orientation toward sexual relationships was associated with sexual assault for both sex offenders and community men. Future directions for research on sexual assault perpetration and violence prevention efforts are discussed in light of these findings.

  9. South Africa: ANC Youth League President issues apology following conviction for hate speech.

    Science.gov (United States)

    Thomas, Shalini

    2011-10-01

    In June 2011, fifteen months after he had been found guilty of hate speech and discrimination, African National Congress (ANC)Youth President Julius issued a formal apology and agreed to pay a R50,000 (CAN$7,120) fine that was part of the conviction.

  10. Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae

    Directory of Open Access Journals (Sweden)

    William G. R. Crampton

    Full Text Available The discus fishes of the genus Symphysodon are popular ornamental cichlids that occur in floodplain lakes and flooded forests of the lowland Amazon Basin. These habitats are characterized by extreme seasonal fluctuations in the availability of food, shelter and dissolved oxygen, and also the densities of predators and parasites. Most aspects of discus biology are influenced by these fluctuating conditions. This paper reports an autoecological study of the western Amazonian discus S. haraldi (until recently classified as S. aequifasciatus. This species feeds predominantly on algal periphyton, fine organic detritus, plant matter, and small aquatic invertebrates. At high water it forages alone or in small groups in flooded forests. At low water it forms large aggregations in fallen tree crowns along lake margins. Breeding occurs at the beginning of the flood season, ensuring that the progeny are well grown before the next low water period. Symphysodon haraldi is an iteroparous partial spawner, reaches reproductive maturity within a year, and undertakes parental care of its eggs and larvae. The timing of spawning events, and/or the rate of brood survival, may be influenced by fluctuations in the flood level, resulting in a non-unimodal distribution of size classes for the subsequent 1+ cohort.

  11. Trends in drink driving accidents and convictions in Denmark

    DEFF Research Database (Denmark)

    Bernhoft, Inger Marie; Hels, Tove; Hansen, Allan Steen

    2008-01-01

    have been divided into subgroups by age and gender. The database of convicted drivers has been linked to databases with information about age, gender and various socio- demographic variables, such as education and employment. Per capita rates have been used to describe the changes in the road safety...... primary school education or workmen, unemployed drivers and drivers who use their car for work. Conclusion. Strategies against drink driving should bear in mind that a differentiation between men and women, young people and middle aged people is necessary, that education and occupation plays an important...

  12. Association of criminal convictions between family members : effects of siblings, fathers and mothers

    NARCIS (Netherlands)

    Rakt, M. van de; Nieuwbeerta, P.; Apel, R.

    2009-01-01

    Background Crime runs in families. Previous research has shown the existence of intergenerational transmission of criminal behaviour. Aim The aim of the present study was to investigate the extent to which variation in criminal convictions may be explained by the criminality of siblings and by the

  13. Induced cytochrome P450 1A activity in cichlid fishes from Guandu River and Jacarepagua Lake, Rio de Janeiro, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Parente, Thiago E.M.; Oliveira, Ana C.A.X. de [Laboratorio de Toxicologia Ambiental, Escola Nacional de Saude Publica - FIOCRUZ, Av Brasil 4036, Predio de Expansao do Campus, Rio de Janeiro, RJ 21041-361 (Brazil); Paumgartten, Francisco J.R. [Laboratorio de Toxicologia Ambiental, Escola Nacional de Saude Publica - FIOCRUZ, Av Brasil 4036, Predio de Expansao do Campus, Rio de Janeiro, RJ 21041-361 (Brazil)], E-mail: paum@ensp.fiocruz.br

    2008-03-15

    The induction of cytochrome P4501A-mediated activity (e.g. ethoxyresorufin-O-deethylation, EROD) has been used as a biomarker for monitoring fish exposure to AhR-receptor ligands such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and polychlorinated dibenzo-dioxins/furans (PCDD/Fs). In this study we found that hepatic EROD is induced in fish ('Nile tilapia', Oreochromis niloticus and 'acara', Geophagus brasiliensis) from the Guandu River (7-17-fold) and Jacarepagua Lake (7-fold), Rio de Janeiro, Brazil. Since both cichlid fish are consumed by the local population and the Guandu River is the main source of the drinking water supply for the greater Rio de Janeiro metropolitan area, pollution by cytochrome P4501A-inducing chemicals is a cause for concern and should be further investigated in sediments, water and biota. We additionally showed that EROD activity in the fish liver post-mitochondrial supernatant-simpler, cheaper and less time consuming to prepare than the microsomal fraction-is sufficiently sensitive for monitoring purposes. - Increased EROD activity in the liver of cichlid fishes indicated that Guandu River, the source of drinking water supply for Rio de Janeiro is polluted by CYP1A-inducing chemicals.

  14. Virtual reality in the treatment of persecutory delusions: randomised controlled experimental study testing how to reduce delusional conviction

    Science.gov (United States)

    Freeman, Daniel; Bradley, Jonathan; Antley, Angus; Bourke, Emilie; DeWeever, Natalie; Evans, Nicole; Černis, Emma; Sheaves, Bryony; Waite, Felicity; Dunn, Graham; Slater, Mel; Clark, David M.

    2016-01-01

    Background Persecutory delusions may be unfounded threat beliefs maintained by safety-seeking behaviours that prevent disconfirmatory evidence being successfully processed. Use of virtual reality could facilitate new learning. Aims To test the hypothesis that enabling patients to test the threat predictions of persecutory delusions in virtual reality social environments with the dropping of safety-seeking behaviours (virtual reality cognitive therapy) would lead to greater delusion reduction than exposure alone (virtual reality exposure). Method Conviction in delusions and distress in a real-world situation were assessed in 30 patients with persecutory delusions. Patients were then randomised to virtual reality cognitive therapy or virtual reality exposure, both with 30 min in graded virtual reality social environments. Delusion conviction and real-world distress were then reassessed. Results In comparison with exposure, virtual reality cognitive therapy led to large reductions in delusional conviction (reduction 22.0%, P = 0.024, Cohen's d = 1.3) and real-world distress (reduction 19.6%, P = 0.020, Cohen's d = 0.8). Conclusion Cognitive therapy using virtual reality could prove highly effective in treating delusions. PMID:27151071

  15. Conviction Offense and Prison Violence: A Comparative Study of Murderers and Other Offenders

    Science.gov (United States)

    Sorensen, Jon; Cunningham, Mark D.

    2010-01-01

    The characteristics of, and 2003 disciplinary data on, 51,527 inmates in the Florida Department of Corrections, including 9,586 inmates who had been convicted of some degree of homicide, were examined for rates and correlates of prison misconduct and violence. Disciplinary misconduct and institutional acts of violence committed by an admissions…

  16. The Employment-Crime Association for Individuals Convicted of a Sexual Offense in Their Youth

    NARCIS (Netherlands)

    van den Berg, C.J.W.; Mesters, Geert

    2017-01-01

    Objective We study the bi-directional relationship between employment and crime for individuals convicted for a sexual offense in their youth (JSO) and investigate the moderating influences of age and employment duration. Method A bi-variate dynamic binary choice model is developed to allow for

  17. Unruly Plebeians and the Forzado System: Convict Transportation between New Spain and the Philippines during the Seventeenth Century

    OpenAIRE

    Mawson, Stephanie

    2013-01-01

    This article examines the phenomenon of convict transportation between Mexico and the Philippines during the 17th century. Utilising sources located within the Archivo General de la Nación (México) and the Archivo General de Indias (Sevilla), I argue that was this convict transportation both helped the Spanish extend their power within the Pacific and functioned as a criminal justice measure in response to the emergence of an unruly and disobedient plebeian underclass in the cities and along ...

  18. The thermal regime and species composition of fish and invertebrates in Kelly Warm Spring, Grand Teton National Park, Wyoming

    Science.gov (United States)

    Harper, David; Farag, Aida

    2017-01-01

    We evaluated the thermal regime and relative abundance of native and nonnative fish and invertebrates within Kelly Warm Spring and Savage Ditch, Grand Teton National Park, Wyoming. Water temperatures within the system remained relatively warm year-round with mean temperatures >20 °C near the spring source and >5 °C approximately 2 km downstream of the source. A total of 7 nonnative species were collected: Convict/Zebra Cichlid (Cichlasoma nigrofasciatum), Green Swordtail (Xiphophorus hellerii), Tadpole Madtom (Noturus gyrinus), Guppy (Poecilia reticulata), Goldfish (Carassius auratus), red-rimmed melania snail (Melanoides tuberculata), and American bullfrog tadpoles (Lithobates catesbeianus). Nonnative fish (Zebra Cichlids and Green Swordtails), red-rimmed melania snails, and bullfrog tadpoles dominated the upper 2 km of the system. Abundance estimates of the Zebra Cichlid exceeded 12,000 fish/km immediately downstream of the spring source. Relative abundance of native species increased movingdownstream as water temperatures attenuated with distance from the thermally warmed spring source; however, nonnative species were captured 4 km downstream from the spring. Fish diseases were prevalent in both native and nonnative fish from the Kelly Warm Spring pond. Clinostomum marginatum, a trematode parasite, was found in native species samples, and the tapeworm Diphyllobothrium dendriticum was present in samples from nonnative species. Diphyllobothrium dendriticum is rare in Wyoming. Salmonella spp. were also found in some samples of nonnative species. These bacteria are associated with aquarium fish and aquaculture and are generally not found in the wild.

  19. Who is most at risk of becoming a convicted rapist?

    DEFF Research Database (Denmark)

    Francis, Brian; Soothill, Keith; Christoffersen, Mogens

    2005-01-01

    The conventional response to the atrocious crime of rape is punishment. However, the aim of criminal justice organizations should be to prevent the behaviour occurring in the first place. Using results from a prospective study of all boys born in 1966 in Denmark where those convicted of rape (N~9....... The fact that the risk factors for future violence are similar to those for rape endorses the point that rape is essentially a violence offence rather than a sex offence. It further demonstrates that prevention programmes for rape will have associated benefits....

  20. The Transportation of Convicts from County Tipperary to Australia 1836-1853

    OpenAIRE

    Butler, Patrick

    2005-01-01

    The aims and objectives of this work are to consider the socio-economic conditions prevailing in county Tipperary during the period in question. The affects on those residing within the county, both rural and urban, and to try and understand how socioeconomic conditions had such an influence in the perpetration of crime and the resulting cases of transportation. The investigation of why, when and how convicts were transported to Australia from the late eighteenth up to the midd...

  1. Paternity of subordinates raises cooperative effort in cichlids.

    Directory of Open Access Journals (Sweden)

    Rick Bruintjes

    Full Text Available In cooperative breeders, subordinates generally help a dominant breeding pair to raise offspring. Parentage studies have shown that in several species subordinates can participate in reproduction. This suggests an important role of direct fitness benefits for cooperation, particularly where groups contain unrelated subordinates. In this situation parentage should influence levels of cooperation. Here we combine parentage analyses and detailed behavioural observations in the field to study whether in the highly social cichlid Neolamprologus pulcher subordinates participate in reproduction and if so, whether and how this affects their cooperative care, controlling for the effect of kinship.We show that: (i male subordinates gained paternity in 27.8% of all clutches and (ii if they participated in reproduction, they sired on average 11.8% of young. Subordinate males sharing in reproduction showed more defence against experimentally presented egg predators compared to subordinates not participating in reproduction, and they tended to stay closer to the breeding shelter. No effects of relatedness between subordinates and dominants (to mid-parent, dominant female or dominant male were detected on parentage and on helping behaviour.This is the first evidence in a cooperatively breeding fish species that the helping effort of male subordinates may depend on obtained paternity, which stresses the need to consider direct fitness benefits in evolutionary studies of helping behaviour.

  2. 44 CFR 17.635 - Reporting of and employee sanctions for convictions of criminal drug offenses.

    Science.gov (United States)

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Reporting of and employee sanctions for convictions of criminal drug offenses. 17.635 Section 17.635 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND SECURITY GENERAL GOVERNMENTWIDE...

  3. NL-Netherlands: Court applies Google Spain: no right to be forgotten for convicted criminal

    NARCIS (Netherlands)

    Breemen, V.

    2014-01-01

    On 18 September 2014, the Amsterdam Court handed down the first national application of the EU Court of Justice’s Google Spain judgment. The case was initiated by a convicted criminal after Google had not fully granted his online removal requests. The court rejected the claim, but it should be noted

  4. Water-level fluctuations and metapopulation dynamics as drivers of genetic diversity in populations of three Tanganyikan cichlid fish species.

    Science.gov (United States)

    Nevado, B; Mautner, S; Sturmbauer, C; Verheyen, E

    2013-08-01

    Understanding how genetic variation is generated and maintained in natural populations, and how this process unfolds in a changing environment, remains a central issue in biological research. In this work, we analysed patterns of genetic diversity from several populations of three cichlid species from Lake Tanganyika in parallel, using the mitochondrial DNA control region. We sampled populations inhabiting the littoral rocky habitats in both very deep and very shallow areas of the lake. We hypothesized that the former would constitute relatively older, more stable and genetically more diverse populations, because they should have been less severely affected by the well-documented episodes of dramatic water-level fluctuations. In agreement with our predictions, populations of all three species sampled in very shallow shorelines showed traces of stronger population growth than populations of the same species inhabiting deep shorelines. However, contrary to our working hypothesis, we found a significant trend towards increased genetic diversity in the younger, demographically less stable populations inhabiting shallow areas, in comparison with the older and more stable populations inhabiting the deep shorelines. We interpret this finding as the result of the establishment of metapopulation dynamics in the former shorelines, by the frequent perturbation and reshuffling of individuals between populations due to the lake-level fluctuations. The repeated succession of periods of allopatric separation and secondary contact is likely to have further increased the rapid pace of speciation in lacustrine cichlids. © 2013 John Wiley & Sons Ltd.

  5. Allometric shape change of the lower pharyngeal jaw correlates with a dietary shift to piscivory in a cichlid fish

    Science.gov (United States)

    Hellig, Christoph J.; Kerschbaumer, Michaela; Sefc, Kristina M.; Koblmüller, Stephan

    2010-07-01

    The morphological versatility of the pharyngeal jaw of cichlid fishes is assumed to represent a key factor facilitating their unparalleled trophic diversification and explosive radiation. It is generally believed that the functional design of an organism relates to its ecology, and thus, specializations to different diets are typically associated with distinct morphological designs, especially manifested in the cichlids’ pharyngeal jaw apparatus. Thereby, the lower pharyngeal jaw (LPJ) incorporates some of the most predictive features for distinct diet-related morphotypes. Thus, considering that piscivorous cichlids experience an ontogenetic dietary shift from typically various kinds of invertebrates to fish, concomitant morphological changes in the LPJ are expected. Using Lepidiolamprologus elongatus, a top predator in the shallow rocky habitat of Lake Tanganyika, as model, and applying geometric and traditional morphometric techniques, we demonstrate an allometric change in ontogenetic LPJ shape development coinciding with the completion of the dietary shift toward piscivory. The piscivorous LPJ morphotype is initiated in juvenile fish by increasing elongation and narrowing of the LPJ and—when the fish reach a size of 80-90 mm standard length—further refined by the elongation of the posterior muscular processes, which serve as insertion for the fourth musculus levator externus. The enlarged muscular processes of the fully mature piscivorous morphotype provide for the construction of a powerful lever system, which allows the large individuals to process large prey fish and rely on exclusive piscivory.

  6. 75 FR 38603 - State Responsibility for the Timely Reporting and Posting of Certain Convictions and...

    Science.gov (United States)

    2010-07-02

    ..., Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) (Pub. L. 109-59). In preparing this... personnel understand the importance of timely conviction reporting. FMCSA evaluates compliance of the SDLA... OIG report and to ensure compliance by using available electronic reporting and manual auditing...

  7. Duration of memory of dominance relationships in a group living cichlid

    Science.gov (United States)

    Hotta, Takashi; Takeyama, Tomohiro; Jordan, Lyndon Alexander; Kohda, Masanori

    2014-09-01

    Animal contests are costly and tend to escalate when rivals have similar competitive abilities. Individuals that remember dominance relationships with rivals may avoid repeated agonistic interactions and hence avoid the costs of repeated escalation of contests. However, it can be difficult to experimentally disentangle the effects of memory from those of loser effects (losers behaving subordinately due to prior defeats). Here, we test whether loser effects or individual memory mediate contest behaviour in the African cichlid, Julidochromis transcriptus. We find that on days 3 and 5 after initial contests, losers display subordinate behaviour to contest winners but not to novel contestants. However, this effect disappears after 7 days, at which time losers do not display subordinate behaviour to either rival. These results show that (1) this fish can recall a previously dominant contestant for up to 5 days and (2) as no subordinate displays were shown to the novel contestant, there are no evidences for loser effects in this species. Such short-term memory of past interactions may have broad significance in social species with repeated interactions.

  8. Changes in the acoustic environment alter the foraging and sheltering behaviour of the cichlid Amititlania nigrofasciata.

    Science.gov (United States)

    McLaughlin, Kirsty Elizabeth; Kunc, Hansjoerg P

    2015-07-01

    Anthropogenic noise can affect behaviour across a wide range of species in both terrestrial and aquatic environments. However, behaviours might not be affected in isolation. Therefore, a more holistic approach investigating how environmental stressors, such as noise pollution, affect different behaviours in concert is necessary. Using tank-based noise exposure experiments, we tested how changes in the acoustic environment affect the behaviour of the cichlid Amatitlania nigrofasciata. We found that exposure to anthropogenic noise affected a couple of behaviours: an increase in sheltering was accompanied by a decrease in foraging. Our results highlight the multiple negative effects of an environmental stressor on an individual's behaviour. Copyright © 2015 Elsevier B.V. All rights reserved.

  9. A three-dimensional stereotaxic MRI brain atlas of the cichlid fish Oreochromis mossambicus.

    Science.gov (United States)

    Simões, José M; Teles, Magda C; Oliveira, Rui F; Van der Linden, Annemie; Verhoye, Marleen

    2012-01-01

    The African cichlid Oreochromis mossambicus (Mozambique tilapia) has been used as a model system in a wide range of behavioural and neurobiological studies. The increasing number of genetic tools available for this species, together with the emerging interest in its use for neurobiological studies, increased the need for an accurate hodological mapping of the tilapia brain to supplement the available histological data. The goal of our study was to elaborate a three-dimensional, high-resolution digital atlas using magnetic resonance imaging, supported by Nissl staining. Resulting images were viewed and analysed in all orientations (transverse, sagittal, and horizontal) and manually labelled to reveal structures in the olfactory bulb, telencephalon, diencephalon, optic tectum, and cerebellum. This high resolution tilapia brain atlas is expected to become a very useful tool for neuroscientists using this fish model and will certainly expand their use in future studies regarding the central nervous system.

  10. The features of family relationship experience, style of parental bonding and relationship with family members of convicts

    Directory of Open Access Journals (Sweden)

    Daiva Karkockienė

    2016-01-01

    Full Text Available The aim of this article is to reveal the features of family relationship, style of parental bonding and relationship with family members of convicts. The tasks of the research: 1 to analyse the relationships experienced in families of convicts and the subjectively perceived style of parental bonding in their childhood; 2 to assess the relationships of convicts (men and women with their families; 3 to compare the attachment styles of convicts analysing different close relationships (with parents, relatives, partner or a close friend. The research was carried out in Panevėžys Correctional Facility and Lukiškės Remand Prison – Closed Prison. In total, the research involved 63 subjects, out of whom 33 were men and 30 women. The female subjects were 18–64 years old, males – 18–45 years old. The following tools were used: Parental Bonding Instrument (Parker G. et al., 1997, Familial Relationship Quality Measure (Ryan & Willits, 2007, Experiences in Close Relationships-Revised (ECR – RS; Fraley, Waller, & Brennan, 2000 and demographic questionnaire. The findings have showed that were no statistically significant differences with regard to gender were established assessing the subjectively perceived style of parental bonding, satisfaction with familial relationships and the attachment style in different close relationships. Both male and female subjects attributed the subjectively perceived upbringing style of a father to “overprotection”, that of a mother – to “care”. The attachment style of males characterised as “avoidance” is insignificantly higher than females, whereas the “anxiety” style of attachment in samples of males and females showed almost no differences. A positive relationship was established between the satisfaction with experienced familial relationships and the “caring” style of upbringing of both parents. Satisfaction with familial relationships positively correlates with the importance of

  11. Dietary habits of juveniles of the Mayan cichlid, Cichlasoma urophthalmus, in mangrove ponds of an offshore islet in Belize, Central America

    OpenAIRE

    Vaslet, Amandine; France, Christine; Baldwin, Carole C.; Feller, Ilka C.

    2012-01-01

    Foraging habitats of juveniles of the Mayan cichlid, Cichlasoma urophthalmus (Günther, 1862), were investigated in two mangrove ponds located in Twin Cays offshore islet in Belize: Sink Hole pond (SH) and Hidden Lake pond (HL). Sink Hole pond is a semiclosed body of water, whereas Hidden Lake pond is connected by a channel to adjacent seagrass beds that surround the islet. Gut contents of 21 juvenile C. urophthalmus (9.8-13.2 cm total length) were analyzed, and five prey taxa were identified....

  12. Empathic capacity of delinquent convicted minors

    Directory of Open Access Journals (Sweden)

    Milojević Sonja

    2014-01-01

    Full Text Available The psychological approach to juvenile delinquency introduced in recent years postulates “empathy impairment” as one of the origins of youth criminal behaviour. This means that in order to be cruel, people need to be unable to imagine the pain their victims experience. To test that hypothesis, we compare a group of convicted juvenile offenders (N=43 with a control group of adolescents (N=47 on self-report and ability measures of cognitive empathy (Interpersonal Reactivity Index and Reading the Mind in the Eyes Test, respectively. Discriminant Analysis reveals a significant difference between the two groups, most notably in the dimensions of personal distress, RMET score, and perspective taking. However, after the control for age and education, only the differences in measures of cognitive empathy remain. Although delinquents perceive themselves as less capable of taking the vantage point of another person and, when tested, prove themselves to be inferior in perceiving emotions and facial expressions, there are no differences in self-report scores of the affective component of empathy. On the basis of these findings, we draw several practical implications concerning everyday work with delinquents. [Projekat Ministarstva nauke Republike Srbije, br. 179018 i br. 47011

  13. Legislative responses to wrongful conviction: Do partisan principals and advocacy efforts influence state-level criminal justice policy?

    Science.gov (United States)

    Kent, Stephanie L; Carmichael, Jason T

    2015-07-01

    The number of discovered wrongful criminal convictions (and resulting exonerations) has increased over the past decade. These cases erode public confidence in the criminal justice system and trust in the rule of law. Many states have adopted laws that aim to reduce system errors but no study has examined why some states appear more willing to provide due process protections against wrongful convictions than others. Findings from regression estimates suggest that states with a Republican controlled legislature or more Republican voters are less likely to pass these laws while the presence of advocacy organizations that are part of the 'innocence movement' make legislative change more likely. We thus identify important differences in the political and social context between U.S. states that influence the adoption of criminal justice policies. Copyright © 2015 Elsevier Inc. All rights reserved.

  14. 20 CFR 725.228 - Effect of conviction of felonious and intentional homicide on entitlement to benefits.

    Science.gov (United States)

    2010-04-01

    ... intentional homicide on entitlement to benefits. 725.228 Section 725.228 Employees' Benefits EMPLOYMENT... intentional homicide on entitlement to benefits. An individual who has been convicted of the felonious and intentional homicide of a miner or other beneficiary shall not be entitled to receive any benefits payable...

  15. 25 CFR 11.902 - Non-criminal proceedings.

    Science.gov (United States)

    2010-04-01

    ... BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAW AND ORDER COURTS OF INDIAN OFFENSES AND LAW AND ORDER CODE Children's Court § 11.902 Non-criminal proceedings. No adjudication upon the status of any minor in the jurisdiction of the children's court shall be deemed criminal or be deemed a conviction of...

  16. Nuclear markers reveal that inter-lake cichlids' similar morphologies do not reflect similar genealogy.

    Science.gov (United States)

    Kassam, Daud; Seki, Shingo; Horic, Michio; Yamaoka, Kosaku

    2006-08-01

    The apparent inter-lake morphological similarity among East African Great Lakes' cichlid species/genera has left evolutionary biologists asking whether such similarity is due to sharing of common ancestor or mere convergent evolution. In order to answer such question, we first used Geometric Morphometrics, GM, to quantify morphological similarity and then subsequently used Amplified Fragment Length Polymorphism, AFLP, to determine if similar morphologies imply shared ancestry or convergent evolution. GM revealed that not all presumed morphological similar pairs were indeed similar, and the dendrogram generated from AFLP data indicated distinct clusters corresponding to each lake and not inter-lake morphological similar pairs. Such results imply that the morphological similarity is due to convergent evolution and not shared ancestry. The congruency of GM and AFLP generated dendrograms imply that GM is capable of picking up phylogenetic signal, and thus GM can be potential tool in phylogenetic systematics.

  17. 12 CFR 585.40 - What convictions or agreements to enter into pre-trial diversions or similar programs are covered...

    Science.gov (United States)

    2010-01-01

    ..., breach of trust, or money laundering. Convictions do not cover arrests, pending cases not brought to... for a criminal offense involving dishonesty, breach of trust or money laundering. A pretrial diversion...

  18. A Comparison of the Social Context for Alcohol Consumption of College Students and Convicted DWI Offenders

    Science.gov (United States)

    Beck, Kenneth H.; Summons, Terry G.

    1985-01-01

    Surveyed college students (N=272) and convicted DWI offenders (N=261). The results revealed that DWI offenders tend to drink in their own home, alone, and to relieve stress; whereas college students are more likely to drink at a party, for the enjoyment of taste, and to get drunk. (JAC)

  19. The first record of the invasive Asian fish tapeworm (Schyzocotyle acheilognathi from an endemic cichlid fish in Madagascar

    Directory of Open Access Journals (Sweden)

    Scholz T.

    2018-03-01

    Full Text Available The Asian fish tapeworm, Schyzocotyle acheilognathi (Yamaguti, 1934 (Cestoda: Bothriocephalidea, is an invasive parasite of freshwater fishes that have been reported from more than 200 freshwater fish worldwide. It was originally described from a small cyprinid, Acheilognathus rombeus, in Japan but then has spread, usually with carp, minnows or guppies, to all continents including isolated islands such as Hawaii, Puerto Rico, Cuba or Sri Lanka. In the present account, we report the first case of the infection of a native cichlid fish, Ptychochromis cf. inornatus (Perciformes: Cichlidae, endemic to Madagascar, with S. acheilognathi. The way of introduction of this parasite to the island, which is one of the world’s biodiversity hotspots, is briefly discussed.

  20. Non bis in idem : De ontwikkeling van een beginsel

    NARCIS (Netherlands)

    van Hattum, W.F.

    2012-01-01

    Non bis in idem. The development of a principle The double jeopardy rule forbids a second prosecution for the same offence. The rule is applicable after irrevocable judgments: condemnations as well as acquittals. If a conviction is subsequently found to be wrong, it is annulled. But what if an

  1. Dietary habits of juveniles of the Mayan cichlid, Cichlasoma urophthalmus, in mangrove ponds of an offshore islet in Belize, Central America

    Directory of Open Access Journals (Sweden)

    Amandine Vaslet

    Full Text Available Foraging habitats of juveniles of the Mayan cichlid, Cichlasoma urophthalmus (Günther, 1862, were investigated in two mangrove ponds located in Twin Cays offshore islet in Belize: Sink Hole pond (SH and Hidden Lake pond (HL. Sink Hole pond is a semiclosed body of water, whereas Hidden Lake pond is connected by a channel to adjacent seagrass beds that surround the islet. Gut contents of 21 juvenile C. urophthalmus (9.8-13.2 cm total length were analyzed, and five prey taxa were identified. In both mangrove ponds, C. urophthalmus were opportunistic carnivores and consumed primarily crustaceans. Plant material and detritus present in gut contents were most likely ingested incidentally when the fish foraged on small invertebrates. Carbon isotopic values of fish specimens from the two ponds were similar (mean ± SD of -19.2 ± 0.4‰ in SH and -19.4 ± 0.4‰ in HL, and were close to those of mangrove prey (mean ± SD = -20.2 ± 1.5‰, suggesting that this fish species forages in this habitat. Mixing models showed a higher contribution of mangrove food sources to the fish diet than seagrass food sources. This study reveals that young Mayan cichlids, inhabiting two Belize mangrove ponds, are generalists and opportunistic carnivores that forage on mangrove food sources and do not appear to move to adjacent seagrass beds to complement their diets. Understanding trophic linkages between aquatic consumers and food resources may contribute to better management of threatened coastal ecosystems.

  2. 20 CFR 10.18 - Can a beneficiary who is incarcerated based on a felony conviction still receive benefits?

    Science.gov (United States)

    2010-04-01

    ... WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL EMPLOYEES' COMPENSATION ACT CLAIMS FOR COMPENSATION UNDER THE FEDERAL EMPLOYEES' COMPENSATION ACT, AS AMENDED General Provisions Rights and Penalties... correctional facility due to a State or Federal felony conviction, he or she forfeits all rights to...

  3. Development of digestive enzymes in larvae of Mayan cichlid Cichlasoma urophthalmus.

    Science.gov (United States)

    López-Ramírez, G; Cuenca-Soria, C A; Alvarez-González, C A; Tovar-Ramírez, D; Ortiz-Galindo, J L; Perales-García, N; Márquez-Couturier, G; Arias-Rodríguez, L; Indy, J R; Contreras-Sánchez, W M; Gisbert, E; Moyano, F J

    2011-03-01

    The development of digestive enzymes during the early ontogeny of the Mayan cichlid (Cichlasoma urophthalmus) was studied using biochemical and electrophoretic techniques. From yolk absorption (6 days after hatching: dah), larvae were fed Artemia nauplii until 15 dah, afterward they were fed with commercial microparticulated trout food (45% protein and 16% lipids) from 16 to 60 dah. Several samples were collected including yolk-sac larvae (considered as day 1 after hatching) and specimens up to 60 dah. Most digestive enzymes were present from yolk absorption (5-6 dah), except for the specific acid proteases activity (pepsin-like), which increase rapidly from 8 dah up to 20 dah. Three alkaline proteases isoforms (24.0, 24.8, 84.5 kDa) were detected at 8 dah using SDS-PAGE zymogram, corresponding to trypsin, chymotrypsin and probably leucine aminopeptidase enzymes, and only one isoform was detected (relative electromobility, Rf = 0.54) for acid proteases (pepsin-like) from 3 dah onwards using PAGE zymogram. We concluded that C. urophthamus is a precocious fish with a great capacity to digest all kinds of food items, including artificial diets provided from 13 dah.

  4. Occurrence of Sciadicleithrum mexicanum Kritsky, Vidal-Martinez et Rodríguez-Canul, 1994 (Monogenea: Dactylogyridae) in the Cichlid Cichlasoma urophthalmus from a flooded quarry in Yucatan, Mexico

    OpenAIRE

    Mendoza-Franco,E. F.; Vidal-Martínez,V.; Simá-Álvarez,R.; Rodríguez-Canul,R.; Vivas-Rodríguez,C.; Scholz,T.

    1995-01-01

    Cichlids, Cichlasoma urophthalmus, collected in a flooded quarry in the Yucatan Peninsula, Mexico, from January through June 1992, had high levels of infection with the ancyrocephaline Sciadicleithrum mexicanum (Monogena: Dactylogyridade) in all montlhly samples. Neither occurrence nor maturation of the worms eshibited any pronounced monthly fluctuation. The infection rate was found to be sizedependent, greater in longer fish. The worms occurred on primary lamellae of gill filaments of all ar...

  5. Growth and social behavior in a cichlid fish are affected by social rearing environment and kinship

    Science.gov (United States)

    Hesse, Saskia; Thünken, Timo

    2014-04-01

    Living in groups is a widespread phenomenon in many animal taxa. The reduction of predation risk is thought to be an important cause for the formation of groups. Consequently, grouping behavior is particularly pronounced during vulnerable life stages, i.e., as juveniles. However, group living does not only provide benefits but also imposes costs on group members, e.g., increased competition for food. Thus, benefits of grouping behavior might not be evident when predation risk is absent. The adaptive significance of living and also developing in a group independent from predation risk has received relatively little attention although this might have important implications on the evolution and maintenance of group living. The first aim of the present study was to examine whether the social environment affects juvenile performance in the cichlid fish Pelvicachromis taeniatus and, secondly, whether kinship affects social behavior. Kin selection theory predicts benefits from grouping with kin. Here, we demonstrate that juveniles reared in a group grow on average faster compared to juveniles reared in isolation under standardized laboratory conditions without predation risk. Furthermore, we found significant differences in social behavior between juveniles reared in a group and reared in isolation. Fish reared in isolation were significantly more aggressive and less willing to shoal than group-reared fish. As expected, genetic relatedness influenced social behavior in group-reared fish as well: dyads of juveniles consisting of kin showed increased group cohesiveness compared to non-kin dyads. We discuss the potential benefits of group living in general and living with kin in particular.

  6. Explanations for Child Sexual Abuse Given by Convicted Offenders in Malawi: No Evidence for "HIV Cleansing"

    Science.gov (United States)

    Mtibo, Charles; Kennedy, Neil; Umar, Eric

    2011-01-01

    Objective: A commonly cited, but unproven reason given for the rise in reported cases of child sexual abuse in Sub-Saharan Africa is the "HIV cleansing myth"--the belief that an HIV infected individual can be cured by having sex with a child virgin. The purpose of this study was to explore in Malawi the reasons given by convicted sex…

  7. Referral to the Hospital And Emergency Ambulance Service Uses Patterns of the Inmates and Convicts

    Directory of Open Access Journals (Sweden)

    Emine Oncu

    2014-03-01

    Full Text Available Aim: The purpose of this study was to determine the reasons for referral to the hospital and 112 emergency ambulance service uses patterns of the inmates and convicts in an E type prison. Material and Method: In this descriptive study, it was evaluated the prison records associated with referral to the hospital and 112 emergency ambulance service uses for one year in 2010- 2011. Of the statistical analysis, descriptive statistics, chi-square test and Fisher%u2019s Exact Test were used. Results: All inmates and convicts were man, the median of age was 30,0 (min 18- max 68 years and substance use was 34,5%. The number of prisoners were referred to the hospital 815, total referrals were 1491; (referrals ranged from one to six and most common in January; and according to frequency, reasons of the referral were eyes problems, musculoskeletal disorders and psychological problems. Emergency medical service was used for in medical causes (78,3%, accident, trauma and injuries (16,4%, suicide (5,3%. Discussion: Findings from the study show that prisoners are more likely to have suffered physical and mental health problems that compared to the rest of society and have significantly high substance use rates.

  8. Animal serial killing: The first criminal conviction for animal cruelty in Brazil.

    Science.gov (United States)

    Salvagni, Fernanda Auciello; de Siqueira, Adriana; Fukushima, Andre Rinaldi; Landi, Marina Frota de Albuquerque; Ponge-Ferreira, Heidi; Maiorka, Paulo Cesar

    2016-10-01

    Animal cruelty is a known behavior of psychopaths, and although the serial killing of humans is widely acknowledged worldwide, this type of crime against animals is seldom discussed. This report describes the necropsy and toxicological findings of 37 dogs and cats, which were found dead in plastic bags in Sao Paulo, Brazil. The animals had all been in the care of an alleged animal rescuer and were to be referred for adoption before being found dead. In the necropsy, the animals showed varying degrees of putrefaction, indicating different periods of death, as well as single or multiple perforations on the thorax. The perforations reached the heart, lungs or large thoracic vessels, culminating in hemopericardium and hemothorax that led to death by circulatory failure and cardiac tamponade. Blood from the heart and thoracic cavity was analyzed by gas chromatography coupled with mass spectrometry (GC-MS) and tested positive for ketamine, a dissociative anesthetic. The suspect declared that she had killed only five of the animals and that they had all been fatally sick. The necropsy proved that all 37 animals were killed in the same way, that none of the animals had any terminal diseases and that a restricted drug was used. The suspect was sentenced to 12 years, 6 months and 14days of prison for the killing of the 37 animals. This was the first conviction for the crime of animal cruelty in Brazil. The combined role of police, forensic veterinary pathologists and prosecutors were essential to the conviction, which was a great historical occasion in the fight against animal cruelty. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  9. Differential Survival between Visual Environments Supports a Role of Divergent Sensory Drive in Cichlid Fish Speciation.

    Science.gov (United States)

    Maan, Martine E; Seehausen, Ole; Groothuis, Ton G G

    2017-01-01

    Identifying the selective forces that initiate ecological speciation is a major challenge in evolutionary biology. Sensory drive has been implicated in speciation in various taxa, largely based on phenotype-environment correlations and signatures of selection in sensory genes. Here, we present a reciprocal transplant experiment revealing species differences in performance in alternative visual environments, consistent with speciation by divergent sensory drive. The closely related cichlids Pundamilia pundamilia and Pundamilia nyererei inhabit different visual environments in Lake Victoria and show associated differences in visual system properties. Mimicking the two light environments in the laboratory, we find a substantial reduction in survival of both species when reared in the other species' visual environment. This implies that the observed differences in Pundamilia color vision are indeed adaptive and substantiates the implicit assumption in sensory drive speciation models that divergent environmental selection is strong enough to drive divergence in sensory properties.

  10. Evolution of body shape in differently coloured sympatric congeners and allopatric populations of Lake Malawi's rock-dwelling cichlids.

    Science.gov (United States)

    Husemann, M; Tobler, M; McCauley, C; Ding, B; Danley, P D

    2014-05-01

    The cichlid fishes of Lake Malawi represent one of the most diverse adaptive radiations of vertebrates known. Among the rock-dwelling cichlids (mbuna), closely related sympatric congeners possess similar trophic morphologies (i.e. cranial and jaw structures), defend overlapping or adjacent territories, but can be easily distinguished based on male nuptial coloration. The apparent morphological similarity of congeners, however, leads to an ecological conundrum: theory predicts that ecological competition should lead to competitive exclusion. Hence, we hypothesized that slight, yet significant, ecological differences accompanied the divergence in sexual signals and that the divergence of ecological and sexual traits is correlated. To evaluate this hypothesis, we quantified body shape, a trait of known ecological importance, in populations of Maylandia zebra, a barred, widespread mbuna, and several sympatric nonbarred congeners. We found that the barred populations differ in body shape from their nonbarred sympatric congeners and that the direction of shape differences was consistent across all barred vs. nonbarred comparisons. Barred populations are generally deeper bodied which may be an adaptation to the structurally complex habitat they prefer, whereas the nonbarred species have a more fusiform body shape, which may be adaptive in their more open microhabitat. Furthermore, M. zebra populations sympatric with nonbarred congeners differ from populations where the nonbarred phenotype is absent and occupy less morphospace, indicating potential ecological character displacement. Mitochondrial DNA as well as published AFLP data indicated that the nonbarred populations are not monophyletic and therefore may have evolved multiple times independently. Overall our data suggest that the evolution of coloration and body shape may be coupled as a result of correlational selection. We hypothesize that correlated evolution of sexually selected and ecological traits may have

  11. Capillaria (Hepatocapillaria) cichlasomae (Nematoda: Capillariidae) from the liver of the cichlid fish Cichlasoma urophthalmus from Yucatan, Mexico.

    Science.gov (United States)

    Moravec, F; Scholz, T; Mendoza Franco, E

    1995-01-01

    Capillaria (Hepatocapillaria) cichlasomae sp. n., parasitic in the liver of the cichlid Cichlasoma urophthalmus (Günther) from a small freshwater lake ("aguada") Xpoc in Yucatan, Mexico, is described. The parasite is characterized mainly by its small body size (male 1.8 mm, female 4.5 mm), the structure of the stichosome (markedly short stichocytes in one row) and the male (the presence of a pair of small subventral postanal papillae) and female (anus distinctly subterminal) caudal ends, and by the size and structure of the spicule (spicule 0.068-0.085 mm long, with marked transverse grooves on surface) and eggs (size 0.053-0.058 x 0.023 mm, with protruding polar plugs). This is the second known Capillaria species from the liver of fish and the first one from the liver of a freshwater fish.

  12. Male mate choice scales female ornament allometry in a cichlid fish

    Directory of Open Access Journals (Sweden)

    Kullmann Harald

    2010-10-01

    Full Text Available Abstract Background Studies addressing the adaptive significance of female ornamentation have gained ground recently. However, the expression of female ornaments in relation to body size, known as trait allometry, still remains unexplored. Here, we investigated the allometry of a conspicuous female ornament in Pelvicachromis taeniatus, a biparental cichlid that shows mutual mate choice and ornamentation. Females feature an eye-catching pelvic fin greatly differing from that of males. Results We show that allometry of the female pelvic fin is scaled more positively in comparison to other fins. The pelvic fin exhibits isometry, whereas the other fins (except the caudal fin show negative allometry. The size of the pelvic fin might be exaggerated by male choice because males prefer female stimuli that show a larger extension of the trait. Female pelvic fin size is correlated with individual condition, suggesting that males can assess direct and indirect benefits. Conclusions The absence of positive ornament allometry might be a result of sexual selection constricted by natural selection: fins are related to locomotion and thus may be subject to viability selection. Our study provides evidence that male mate choice might scale the expression of a female sexual ornament, and therefore has implications for the understanding of the relationship of female sexual traits with body size in species with conventional sex-roles.

  13. CHILD PORNOGRAPHY ON THE INTERNET – DETERMNINATS OF CONVICTED OFFENDERS

    Directory of Open Access Journals (Sweden)

    Lucija Vejmelka

    2017-07-01

    Full Text Available Harmful activities by means of modern technology also include detrimental contacts when abchild is targeted and chosen as a victim by another child or adult person. The paper deals with presentation of preliminary research results concerning the group of harmful contacts that pertain to the involvement in activities related to the Internet child pornography. The research analyzed the probation service documentation of 76 cases of convicted perpetrators of child exploitation for purposes of the Internet pornography. The presentation of the results includes information on the perpetrators and type of offenses, in addition to other data which will contribute to better understanding of criminal offenses that harm children and juveniles through child pornography and electronic violence. The presentation of the results aims at objectives analysis but also contributes to the sparse field of research.

  14. Reproductive-tactic-specific variation in sperm swimming speeds in a shell-brooding cichlid.

    Science.gov (United States)

    Fitzpatrick, J L; Desjardins, J K; Milligan, N; Montgomerie, R; Balshine, S

    2007-08-01

    Theory predicts that males experiencing elevated levels of sperm competition will invest more in gonads and produce faster-swimming sperm. Although there is ample evidence in support of the first prediction, few studies have examined sperm swimming speed in relation to sperm competition. In this study, we tested these predictions from sperm competition theory by examining sperm characteristics in Telmatochromis vittatus, a small shell-brooding cichlid fish endemic to Lake Tanganyika. Males exhibit four different reproductive tactics: pirate, territorial, satellite, and sneaker. Pirate males temporarily displace all other competing males from a shell nest, whereas sneaker males always release sperm in the presence of territorial and satellite males. Due to the fact that sneakers spawn in the presence of another male, sneakers face the highest levels of sperm competition and pirates the lowest, whereas satellites and territorials experience intermediate levels. In accordance with predictions, sperm from sneakers swam faster than sperm from males adopting the other reproductive tactics, whereas sperm from pirates was slowest. Interestingly, we were unable to detect any variation in sperm tail length among these reproductive tactics. Thus, sperm competition appears to have influenced sperm energetics in this species without having any influence on sperm size.

  15. Public Perceptions of GPS Monitoring for Convicted Sex Offenders: Opinions on Effectiveness of Electronic Monitoring to Reduce Sexual Recidivism.

    Science.gov (United States)

    Budd, Kristen M; Mancini, Christina

    2017-09-01

    In the United States, electronic monitoring (EM) and global positioning systems (GPS) are new applications that are used to extensively monitor and track convicted sex offenders. What is unclear though are public perceptions of this strategy. This research examines public perceptions of a national sample of Americans on the use of GPS/EM with convicted sex offenders as a method to reduce their sexual recidivism. Using a multinomial regression model, we analyze the effects of sex offender myths and parental status on public perceptions that sex offender GPS/EM is very effective in reducing sexual recidivism. Findings suggest that public perceptions of effectiveness are partially driven by myths and also that parents are unsure of this strategy. The analysis contributes to the growing body of knowledge on public perceptions of GPS/EM to manage sex offenders in communities. Implications of the study and areas for future research are discussed in light of the findings.

  16. Reductions in access to HIV prevention and care services are associated with arrest and convictions in a global survey of men who have sex with men.

    Science.gov (United States)

    Santos, Glenn-Milo; Makofane, Keletso; Arreola, Sonya; Do, Tri; Ayala, George

    2017-02-01

    Men who have sex with men (MSM) are disproportionately impacted by HIV. Criminalisation of homosexuality may impede access to HIV services. We evaluated the effect of the enforcement of laws criminalising homosexuality on access to services. Using data from a 2012 global online survey that was published in a prior paper, we conducted a secondary analysis evaluating differences in perceived accessibility to health services (ie, 'how accessible are ____' services) between MSM who responded 'yes'/'no' to: 'have you ever been arrested or convicted for being gay/MSM?' Of the 4020 participants who completed the study and were included in the analysis, 8% reported ever being arrested or convicted under laws relevant to being MSM. Arrests and convictions were most common in sub-Saharan Africa (23.6% (58/246)), Eastern Europe/Central Asia (18.1% (123/680)), the Caribbean (15% (15/100)), Middle East/North Africa (13.2% (10/76)) and Latin America (9.7% (58/599)). Those arrested or convicted had significantly lower access to sexually transmitted infection treatment (adjusted OR (aOR)=0.81; 95% CI 0.67 to 0.97), condoms (aOR=0.77; 95% CI 0.61 to 0.99) and medical care (aOR=0.70; 95% CI 0.54 to 0.90), compared with other MSM, while accounting for clustering by country and adjusting for age, HIV status, education and country-level income. Arrests and convictions under laws relevant to being MSM have a strong negative association with access to HIV prevention and care services. Creating an enabling legal and policy environment, and increasing efforts to mitigate antihomosexuality stigma to ensure equitable access to HIV services are needed, along with decriminalisation of homosexuality, to effectively address the public health needs of this population. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  17. Autism and Convictions for Violent Crimes: Population-Based Cohort Study in Sweden.

    Science.gov (United States)

    Heeramun, Ragini; Magnusson, Cecilia; Gumpert, Clara Hellner; Granath, Sven; Lundberg, Michael; Dalman, Christina; Rai, Dheeraj

    2017-06-01

    Recent systematic reviews have highlighted that the relationship between autism and violent offending is still unclear, but some cases have received extensive media scrutiny. We investigated whether autism is associated with convictions for violent crimes, and studied the associated risk and protective factors. We analyzed data from the Stockholm Youth Cohort, a total population-based record-linkage cohort in Stockholm County comprising 295,734 individuals followed up between 15 and 27 years of age. Of these, 5,739 individuals had a recorded autism diagnosis. The main outcome measure was a conviction for violent crimes identified using the Swedish National Crime Register. Individuals with autism, particularly those without intellectual disability, initially appeared to have a higher risk of violent offending (adjusted relative risk = 1.39, 95% CI = 1.23-1.58). However, these associations markedly attenuated after co-occurring attention-deficit/hyperactivity disorder (ADHD) or conduct disorder were taken into account (adjusted relative risk = 0.85, 95% CI = 0.75-0.97). Among individuals with autism, male sex and psychiatric conditions were the strongest predictors of violent criminality, along with parental criminal and psychiatric history and socioeconomic characteristics. There was some evidence that a delayed diagnosis of autism was associated with a greater risk of violent crime. Better school performance and intellectual disability appeared to be protective. An initially observed association between autism and violent crimes at a population level was explained by comorbidity with ADHD and conduct disorder. Better understanding and management of comorbid psychopathology in autism may potentially help preventive action against offending behaviors in people with autism. Copyright © 2017 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc. All rights reserved.

  18. Attributing Responsibility, Sexist Attitudes, Perceived Social Support, and Self-Esteem in Aggressors Convicted for Gender-Based Violence.

    Science.gov (United States)

    Guerrero-Molina, Mónica; Moreno-Manso, Juan Manuel; Guerrero-Barona, Eloísa; Cruz-Márquez, Beatriz

    2017-06-01

    This work analyzes how the assumption of responsibility by aggressors convicted for gender-based violence is related to sexist attitudes, self-esteem and perceived functional social support. Similarly, the predictive capacity of these variables is studied with respect to the aggressors' minimization of the harm done and a lack of attributing responsibility to themselves. The participants in the research were males condemned to prison sentences for crimes related with gender-based violence in Spain. The instruments applied were the Attribution of Responsibility and Minimization of Harm Scale, the Ambivalent Sexism Inventory (ASI), the Rosenberg Self-Esteem Scale (RSE), the Functional Social Support Questionnaire (FSSQ), and the Social Desirability Scale (SDS). The study concludes that sexist attitudes are related with a greater lack of attribution of responsibility, as well as with a greater tendency to minimize the harm done by the aggression. In addition, the aggressors with low self-esteem use self-defense as a strategy to justify the violence. Similarly, the presence of an adequate social support network for the aggressor increases the attribution of responsibility on the part of those convicted for gender-based violence.

  19. Infection by anisakid nematodes contracaecum spp. in the Mayan cichlid fish 'Cichlasoma (Nandopsis)' urophthalmus (Gunther 1862).

    Science.gov (United States)

    Bergmann, Gaddy T; Motta, Philip J

    2004-04-01

    Larval nematodes that parasitize the Mayan cichlid fish 'Cichlasoma (Nandopsis)' urophthalmus (Günther 1862) in southern Florida were identified as Contracaecum spp. (Nematoda: Anisakidae, Anisakinae). The objective of this study was to determine whether infection intensity and prevalence of these parasites differ between a brackish water and freshwater habitat or through ontogeny in the freshwater habitat only. The nematodes were removed from the abdominal cavity of the fishes and counted. Infection intensity was compared between habitats using analysis of covariance and evaluated through ontogeny using Spearman rank order correlation. Prevalence was compared between habitats and between adults and juveniles from the freshwater habitat using a z-test. Although infection intensity did not differ between habitats, infection prevalence was greater at the freshwater site (FWS). Both the prevalence and intensity of nematode infection increased through ontogeny at the FWS, and no nematode was found in fishes that were smaller than 93 mm standard length. Thus, the parasites appear to accumulate during the lifetime of the fishes.

  20. PREDICTING SUCCESS INDICATORS OF AN INTERVENTION PROGRAMME FOR CONVICTED INTIMATE-PARTNER VIOLENCE OFFENDERS: THE CONTEXTO PROGRAMME

    Directory of Open Access Journals (Sweden)

    Enrique Gracia

    2013-01-01

    Full Text Available Recent legal changes in Spain have led to an important increase in the number of men court-mandated to community-based partner violence offender intervention programmes. However, just a few of those interventions have been systematically examined. This study aims to predict success indicators of an intervention programme for convicted intimate-partner violence offenders. The sample consisted of 212 convicted intimate-partner violence offenders who participated in the Contexto Programme. Three “intervention gains” or target criteria were established (increasing the perceived severity of violence, increasing the responsibility assumption for one’s actions, and reducing the risk of recidivism. A structural equations model was tested, fitting data appropriately. Participants with major gain in recidivism risk were those who presented lower levels of alcohol consumption, shorter sentences, lower impulsivity, and a higher degree of life satisfaction. The largest gain in perceived severity was found in younger participants, participants with shorter sentences, lower alcohol consumption, higher life satisfaction, higher participation in their community, and higher self-esteem. And, finally, participants with the highest gains in responsibility assumption were older participants, participants who presented higher intimate support, higher anxiety, higher sexism, lower anger control, higher depression, higher impulsivity and higher self-esteem.

  1. A high-resolution map of the Nile tilapia genome: a resource for studying cichlids and other percomorphs

    Science.gov (United States)

    2012-01-01

    Background The Nile tilapia (Oreochromis niloticus) is the second most farmed fish species worldwide. It is also an important model for studies of fish physiology, particularly because of its broad tolerance to an array of environments. It is a good model to study evolutionary mechanisms in vertebrates, because of its close relationship to haplochromine cichlids, which have undergone rapid speciation in East Africa. The existing genomic resources for Nile tilapia include a genetic map, BAC end sequences and ESTs, but comparative genome analysis and maps of quantitative trait loci (QTL) are still limited. Results We have constructed a high-resolution radiation hybrid (RH) panel for the Nile tilapia and genotyped 1358 markers consisting of 850 genes, 82 markers corresponding to BAC end sequences, 154 microsatellites and 272 single nucleotide polymorphisms (SNPs). From these, 1296 markers could be associated in 81 RH groups, while 62 were not linked. The total size of the RH map is 34,084 cR3500 and 937,310 kb. It covers 88% of the entire genome with an estimated inter-marker distance of 742 Kb. Mapping of microsatellites enabled integration to the genetic map. We have merged LG8 and LG24 into a single linkage group, and confirmed that LG16-LG21 are also merged. The orientation and association of RH groups to each chromosome and LG was confirmed by chromosomal in situ hybridizations (FISH) of 55 BACs. Fifty RH groups were localized on the 22 chromosomes while 31 remained small orphan groups. Synteny relationships were determined between Nile tilapia, stickleback, medaka and pufferfish. Conclusion The RH map and associated FISH map provide a valuable gene-ordered resource for gene mapping and QTL studies. All genetic linkage groups with their corresponding RH groups now have a corresponding chromosome which can be identified in the karyotype. Placement of conserved segments indicated that multiple inter-chromosomal rearrangements have occurred between Nile tilapia

  2. Homens apenados e mulheres presas: estudo sobre mulheres de presos Convicted men and imprisoned women: a study on the wives of prisoners

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    Cristian Fabiano Guimarães

    2006-12-01

    Full Text Available Esta pesquisa teve por objetivo conhecer as mulheres de um grupo de apenados e identificar as discriminações que elas sofrem, incluindo as de gênero. Buscamos identificar os possíveis estigmas relacionados à situação de aprisionamento e as estratégias de resistência utilizadas por estas mulheres no cotidiano. A metodologia da pesquisa é qualitativa e as informações foram obtidas por meio de observação participante e de grupos focais com mulheres de presos albergados em um presídio de uma cidade da Região Metropolitana de Porto Alegre-RS, em regime semi-aberto. As mulheres dos apenados se submetem a situações de controle, baseadas nos sistemas de dominação de classe e de gênero. O estigma em relação a este grupo social apareceu nas entrelinhas dos depoimentos, porém as mulheres resistem ativamente às violências, apoiando-se em redes de parentesco e de vizinhança. A precariedade de redes de apoio social e a falta de informação e acesso ao mercado de trabalho contribuem para a marginalização do apenado e de sua família, deixando clara a importância de estudos que busquem a inclusão deste grupo social.The objective of this research was to know the wives of a group of convicted men, serving their time partially at home, and to identify the discriminations they had to go through, including those of gender. We searched to identify the possible labeling for having a convicted relative and the strategies of resistance that these women use in everyday life. The research method is qualitative and information was obtained by means of participation-observation and focal groups with the wives of convicts in a prison facility in the metropolitan region of Porto Alegre, RS, in a semi-open regime. The wives of convicts submit themselves to situations of control, based on the systems of class and gender domination. From our analysis, the labeling in relation to this social group was found in-between the lines, in other words

  3. If You Want to Convict a Domestic Violence Batterer, List Multiple Charges in the Police Report

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    Eric L. Nelson

    2014-01-01

    Full Text Available Problem: Even though reforms in the past 40 years mandated police response to domestic violence (DV crime, and in many states also mandated arrest, never-the-less baseline rates of DV prosecution remain low. Background: The nature of prosecution is reviewed, noting that nearly all criminal cases are resolved through plea bargaining in state and federal cases. Thus, the nature of plea bargaining is examined from a perspective of negotiable currency. Past research demonstrates that if multiple crimes are described and listed in the first responding police officer’s written report, there is a substantially greater odds that the suspect will be prosecuted and found guilty. Those extra charges can be dropped by prosecutors in exchange for a plea of guilt. Purpose: This empirical study examines a discretionary best practices crime investigation method that can be operationalized by first responding police officers, in situ, to determine whether its use leads to a significant increase in rates of prosecution and criminal conviction for DV crime. The methodology is the choice to thoroughly investigate each DV crime to uncover concurrent and also past-but-still-chargeable crimes. This optional work is time-consuming because children, neighbors, the 911 caller, and others must be contacted and interviewed. Method: Randomly selected police reports (n = 366 were found to contain 22 combinations of crime codes listed as violations, for DV and other concurrent crimes. The reports were evaluated on a number of prosecutorial outcomes. Frequency statistics were calculated, and logistic regression was used to confirm key relationships. Results: Only one third of all submitted reports listed more than one crime. For those investigations that did lead to prosecution, 97% resolved through plea bargaining. Most single charge misdemeanor DV police reports were found to be “dead upon arrival” at the prosecutor’s office, with only 29% resulting in any type of

  4. Partial characterisation of digestive proteases of the Mayan cichlid Cichlasoma urophthalmus.

    Science.gov (United States)

    Cuenca-Soria, C A; Álvarez-González, C A; Ortiz-Galindo, J L; Nolasco-Soria, H; Tovar-Ramírez, D; Guerrero-Zárate, R; Castillo-Domínguez, A; Perera-García, M A; Hernández-Gómez, R; Gisbert, E

    2014-06-01

    The characterisation of digestive proteases in native freshwater fish such as the Mayan cichlid Cichlasoma urophthalmus provides scientific elements that may be used to design balanced feed that matches with the digestive capacity of the fish. The purpose of this study was to characterise the digestive proteases, including the effect of the pH and the temperature on enzyme activity and stability, as well as the effect of inhibitors using multienzymatic extracts of the stomach and intestine of C. urophthalmus juveniles. Results showed that the optimum activities of the acid and alkaline proteases occurred at pH values of 3 and 9, respectively, whereas their optimum temperatures were 55 and 65 °C, respectively. The acid proteases were most stable at pH values of 2–3 and at temperatures of 35–45 °C, whereas the alkaline proteases were most stable at pH values of 6–9 and at 25–55 °C. The inhibition assays recorded a residual activity of 4% with pepstatin A for the acid proteases. The inhibition of the alkaline proteases was greater than 80% with TPCK, TLCK, EDTA and ovalbumin, and of 60 and 43.8% with PMSF and SBT1, respectively. The results obtained in this study make it possible to state that C. urophthalmus has a sufficiently complete digestive enzyme machinery to degrade food items characteristic of an omnivorous fish species, although specimens showed a tendency to carnivory.

  5. 45 CFR 61.8 - Reporting Federal or State criminal convictions related to the delivery of a health care item or...

    Science.gov (United States)

    2010-10-01

    ... address of the reporting entity; and (xiv) The name, title and telephone number of the responsible official submitting the report on behalf of the reporting entity. (c) Entities described in paragraph (a... 45 Public Welfare 1 2010-10-01 2010-10-01 false Reporting Federal or State criminal convictions...

  6. Redirected aggression as a conflict management tactic in the social cichlid fish Julidochromis regani.

    Science.gov (United States)

    Ito, Munehiko H; Yamaguchi, Motoomi; Kutsukake, Nobuyuki

    2018-01-31

    Conflict management consists of social behaviours that reduce the costs of conflict among group members. Redirected aggression-that is, when a recently attacked individual attacks a third party immediately after the original aggression-is considered a conflict management tactic, as it may reduce the victim's probability of being the object of further aggression. Redirected aggression has been reported in many vertebrates, but few quantitative studies have been conducted on this behaviour in fishes. We examined the function of redirected aggression in Julidochromis regani , a social cichlid fish. Behavioural experiments showed that redirected aggression functioned to divert the original aggressor's attention towards a third party and to pre-empt an attack towards the victim by the third-party individual, specifically among females. We found, however, that redirected aggression did not delay the recurrence of aggression by the original aggressor. These results suggest that a primary function of redirected aggression is to maintain the dominance of its actor against a subordinate occupying an adjacent rank. This study provides, to our knowledge, the first evidence that redirected aggression functions to manage conflict in social fish. © 2018 The Author(s).

  7. Abnormal illness behavior and Internet addiction severity: The role of disease conviction, irritability, and alexithymia

    Science.gov (United States)

    Scimeca, Giuseppe; Bruno, Antonio; Crucitti, Manuela; Conti, Claudio; Quattrone, Diego; Pandolfo, Gianluca; Zoccali, Rocco Antonio; Muscatello, Maria Rosaria Anna

    2017-01-01

    Background and aims While the association between health anxiety and maladaptive Internet use is a well-established finding, no studies have been performed to examine the possible effect of abnormal illness behavior (AIB). AIB is a maladaptive manner of experiencing, evaluating, or acting in response to health and illness that is disproportionate to evident pathology. The aim of this study was to investigate the association between AIB and Internet addiction (IA) severity in a sample of Italian University students. The possible effect of alexithymia, anxiety, and depression was also taken into account. Methods Participants were 115 men and 163 women (mean age = 23.62 ± 4.38 years); AIB was measured via the Illness Behavior Questionnaire (IBQ), and IA severity by the Internet Addiction Test (IAT). Results The most powerful IBQ factor predicting IA severity scores was disease conviction. Irritability was the only emotional IBQ factor associated with IA severity. Nevertheless, disease conviction and alexithymia remained the only significant predictors of IAT scores when hierarchical regression analysis was executed. Discussion and conclusions Our results support previous findings showing that those characterized by health anxiety are more prone to an excessive and maladaptive use of Internet. Moreover, this study showed that irritability was the only emotional aspect of AIB predicting IA severity. This finding is consistent with the cognitive model of hypochondria, which states that cognitive factors (dysfunctional beliefs and assumptions) play a major role in the explanation of this psychopathological condition. PMID:28245678

  8. Abnormal illness behavior and Internet addiction severity: The role of disease conviction, irritability, and alexithymia.

    Science.gov (United States)

    Scimeca, Giuseppe; Bruno, Antonio; Crucitti, Manuela; Conti, Claudio; Quattrone, Diego; Pandolfo, Gianluca; Zoccali, Rocco Antonio; Muscatello, Maria Rosaria Anna

    2017-03-01

    Background and aims While the association between health anxiety and maladaptive Internet use is a well-established finding, no studies have been performed to examine the possible effect of abnormal illness behavior (AIB). AIB is a maladaptive manner of experiencing, evaluating, or acting in response to health and illness that is disproportionate to evident pathology. The aim of this study was to investigate the association between AIB and Internet addiction (IA) severity in a sample of Italian University students. The possible effect of alexithymia, anxiety, and depression was also taken into account. Methods Participants were 115 men and 163 women (mean age = 23.62 ± 4.38 years); AIB was measured via the Illness Behavior Questionnaire (IBQ), and IA severity by the Internet Addiction Test (IAT). Results The most powerful IBQ factor predicting IA severity scores was disease conviction. Irritability was the only emotional IBQ factor associated with IA severity. Nevertheless, disease conviction and alexithymia remained the only significant predictors of IAT scores when hierarchical regression analysis was executed. Discussion and conclusions Our results support previous findings showing that those characterized by health anxiety are more prone to an excessive and maladaptive use of Internet. Moreover, this study showed that irritability was the only emotional aspect of AIB predicting IA severity. This finding is consistent with the cognitive model of hypochondria, which states that cognitive factors (dysfunctional beliefs and assumptions) play a major role in the explanation of this psychopathological condition.

  9. Unruly Plebeians and the Forzado System: Convict Transportation between New Spain and the Philippines during the Seventeenth Century

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    Mawson, Stephanie

    2013-12-01

    Full Text Available This article examines the phenomenon of convict transportation between Mexico and the Philippines during the 17th century. Utilising sources located within the Archivo General de la Nación (México and the Archivo General de Indias (Sevilla, I argue that was this convict transportation both helped the Spanish extend their power within the Pacific and functioned as a criminal justice measure in response to the emergence of an unruly and disobedient plebeian underclass in the cities and along the highways of New Spain.Este artículo examina el fenómeno del transporte de soldados forzados entre México y las Filipinas durante el siglo XVII. Utilizando fuentes del Archivo General de la Nación (México y del Archivo General de Indias (Sevilla, sostengo que este tipo de transporte forzado ayudó a los españoles a ampliar su poder en el Pacífico. Así mismo, actuó como una medida de justicia penal en respuesta a la aparición de plebeyos rebeldes y desobedientes dentro las ciudades y en las carreteras de la Nueva España.

  10. A gene expression study of dorso-ventrally restricted pigment pattern in adult fins of Neolamprologus meeli, an African cichlid species

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    Ehsan Pashay Ahi

    2017-01-01

    Full Text Available Fish color patterns are among the most diverse phenotypic traits found in the animal kingdom. Understanding the molecular and cellular mechanisms that control in chromatophore distribution and pigmentation underlying this diversity is a major goal in developmental and evolutionary biology, which has predominantly been pursued in the zebrafish model system. Here, we apply results from zebrafish work to study a naturally occurring color pattern phenotype in the fins of an African cichlid species from Lake Tanganyika. The cichlid fish Neolamprologus meeli displays a distinct dorsal color pattern, with black and white stripes along the edges of the dorsal fin and of the dorsal half of the caudal fin, corresponding with differences in melanophore density. To elucidate the molecular mechanisms controlling the differences in dorsal and ventral color patterning in the fins, we quantitatively assessed the expression of 15 candidate target genes involved in adult zebrafish pigmentation and stripe formation. For reference gene validation, we screened the expression stability of seven widely expressed genes across the investigated tissue samples and identified tbp as appropriate reference. Relative expression levels of the candidate target genes were compared between the dorsal, striped fin regions and the corresponding uniform, grey-colored regions in the anal and ventral caudal fin. Dorso-ventral expression differences, with elevated levels in both white and black stripes, were observed in two genes, the melanosome protein coding gene pmel and in igsf11, which affects melanophore adhesion, migration and survival. Next, we predicted potential shared upstream regulators of pmel and igsf11. Testing the expression patterns of six predicted transcriptions factors revealed dorso-ventral expression difference of irf1 and significant, negative expression correlation of irf1 with both pmel and igsf11. Based on these results, we propose pmel, igsf11 and irf1 as

  11. Substance misuse subtypes among women convicted of homicide.

    Science.gov (United States)

    de Melo Nunes, Adriana; Baltieri, Danilo Antonio

    2013-01-01

    The proportion of women incarcerated is growing at a faster pace than that for men. The reasons for this important increase have been mainly attributed to drug-using lifestyle and drug-related offenses. About half of female inmates have history of substance misuse and one third demonstrate high impulsiveness levels. The objectives of this study were to (a) identify subtypes of alcohol and drug problems and impulsiveness among women convicted of homicide, and (b) examine the association between psychosocial and criminological features and the resulting clusters. Data come from 158 female inmates serving a sentence for homicide in the Penitentiary of Sant'Ana in São Paulo State, Brazil. Latent class analysis was used to group participants into substance misuse and impulsiveness classes. Two classes were identified: nonproblematic (cluster 1: 54.53%, n = 86) and problematic (cluster 2: 45.57%, n = 72) ones. After controlling for several psychosocial and criminological variables, cluster 2 inmates showed an earlier beginning of criminal activities and a lower educational level than their counterparts. To recognize the necessities of specific groups of female offenders is crucial for the development of an adequate system of health politics and for the decrease of criminal recidivism among those offenders who have shown higher risk.

  12. Alcohol use, alcohol-related aggression and intimate partner abuse: A cross-sectional survey of convicted versus general population men in Scotland.

    Science.gov (United States)

    Gilchrist, Elizabeth Allison; Ireland, Lana; Forsyth, Alasdair; Godwin, Jon; Laxton, Tim

    2017-01-01

    Scotland has a particular problem with alcohol, and the links between intimate partner abuse (IPA) and alcohol appear stronger here than elsewhere across Europe. This study explored differences in alcohol use, related aggression and relationship conflict across a number of groups: men convicted for intimate partner abuse, men convicted of general offences and men recruited from community sports teams. Participants (n = 64) completed three questionnaires exploring their experiences of alcohol use (Alcohol Use Disorders Identification Test, AUDIT); alcohol and aggression (Alcohol Related Aggression Questionnaire, ARAQ-28), and relationship conflict (Revised Conflict Tactics Scale, CTS-2). There were significant differences across the groups in terms of AUDIT and ARAQ-28 scores, IPA and general offenders scored higher than the community sample. CTS-2 scores showed significant differences: both offender groups reported more use of negotiation and psychological abuse, than the community men, and IPA offenders reported causing more physical harm than either general offenders or the community sample. ARAQ-28 scores correlated with psychological abuse for general offenders. Alcohol use was very high across all groups, but the community group did not endorse an aggression-precipitating view of alcohol and did not report high IPA. Discussed is the need for cross-cultural research to explore putative mediators and moderators in the relationship between alcohol, aggressiveness and IPA. [Gilchrist EA, Ireland L, Forsyth A, Godwin J, Laxton T. Alcohol use, alcohol-related aggression and intimate partner abuse: A cross-sectional survey of convicted versus general population men in Scotland. Drug Alcohol Rev 2017;36:20-23]. © 2017 Australasian Professional Society on Alcohol and other Drugs.

  13. Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania

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    Marnix de Zeeuw

    2013-01-01

    Full Text Available Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania, are described and illustrated. These species closely resemble each other. Their affinities to other zooplanktivorous haplochromines from Lake Victoria are discussed. Haplochromis argens sp. n., which featured under nicknames (mainly H. “argens” in more than 50 papers, was caught both in the Mwanza Gulf and the Emin Pasha Gulf, whereas H. goldschmidti sp. n. was only found in the Emin Pasha Gulf. Of the latter species only males are available, but it seems unlikely that it represents a case of male colour polymorphism as several presumably unrelated characters differ in sympatry between the two species, suggesting that there is no gene flow. Statistical analysis revealed that the overall difference between the two species is greater than that between the populations from the two locations. Body depth of the two species in sympatry in the Emin Pasha Gulf was more similar than that of H. goldschmidti sp. n. and the allopatric population of H. argens sp. n. from the Mwanza Gulf, which may indicate an overall environmental effect. However, several measurements related to the width of snout and mouth differed more between the populations of the two species in sympatry than between the allopatric populations. In contrast to a group of zooplanktivorous species that recovered successfully after environmental changes in the lake, H. argens sp. n. is among a group that became extremely rare and probably is in danger of extinction; the conservation status of H. goldschmidti sp. n. is currently unknown.

  14. Social regulation of male reproductive plasticity in an African cichlid fish.

    Science.gov (United States)

    Maruska, Karen P; Fernald, Russell D

    2013-12-01

    Social interactions with the outcome of a position in a dominance hierarchy can have profound effects on reproductive behavior and physiology, requiring animals to integrate environmental information with their internal physiological state; but how is salient information from the animal's dynamic social environment transformed into adaptive behavioral, physiological, and molecular-level changes? The African cichlid fish, Astatotilapia burtoni, is ideally suited to understand socially controlled reproductive plasticity because activity of the male reproductive (brain-pituitary-gonad) axis is tightly linked to social status. Males form hierarchies in which a small percentage of brightly colored dominant individuals have an active reproductive axis, defend territories, and spawn with females, while the remaining males are subordinate, drably colored, do not hold a territory, and have a suppressed reproductive system with minimal opportunities for spawning. These social phenotypes are plastic and quickly reversible, meaning that individual males may switch between dominant and subordinate status multiple times within a lifetime. Here, we review the rapid and remarkable plasticity that occurs along the entire reproductive axis when males rise in social rank, a transition that has important implications for the operational sex ratio of the population. When males rise in rank, transformations occur in the brain, pituitary, circulation, and testes over short time-scales (minutes to days). Changes are evident in overt behavior, as well as modifications at the physiological, cellular, and molecular levels that regulate reproductive capacity. Widespread changes triggered by a switch in rank highlight the significance of external social information in shaping internal physiology and reproductive competence.

  15. Niche divergence facilitated by fine-scale ecological partitioning in a recent cichlid fish adaptive radiation.

    Science.gov (United States)

    Ford, Antonia G P; Rüber, Lukas; Newton, Jason; Dasmahapatra, Kanchon K; Balarin, John D; Bruun, Kristoffer; Day, Julia J

    2016-12-01

    Ecomorphological differentiation is a key feature of adaptive radiations, with a general trend for specialization and niche expansion following divergence. Ecological opportunity afforded by invasion of a new habitat is thought to act as an ecological release, facilitating divergence, and speciation. Here, we investigate trophic adaptive morphology and ecology of an endemic clade of oreochromine cichlid fishes (Alcolapia) that radiated along a herbivorous trophic axis following colonization of an isolated lacustrine environment, and demonstrate phenotype-environment correlation. Ecological and morphological divergence of the Alcolapia species flock are examined in a phylogenomic context, to infer ecological niche occupation within the radiation. Species divergence is observed in both ecology and morphology, supporting the importance of ecological speciation within the radiation. Comparison with an outgroup taxon reveals large-scale ecomorphological divergence but shallow genomic differentiation within the Alcolapia adaptive radiation. Ancestral morphological reconstruction suggests lake colonization by a generalist oreochromine phenotype that diverged in Lake Natron to varied herbivorous morphologies akin to specialist herbivores in Lakes Tanganyika and Malawi. © 2016 The Author(s). Evolution published by Wiley Periodicals, Inc. on behalf of The Society for the Study of Evolution.

  16. Stress axis regulation during social ascension in a group-living cichlid fish.

    Science.gov (United States)

    Culbert, Brett M; Gilmour, Kathleen M; Balshine, Sigal

    2018-06-19

    Animals living in groups often form social hierarchies, with characteristic behaviours and physiologies associated with rank. However, when social opportunities arise and a subordinate ascends into a dominant position, quick adjustments are necessary to secure this position. Such periods of social transition are typically associated with elevated glucocorticoid production, but the precise regulation of the stress axis during these occasions is not well understood. Using the group-living cichlid, Neolamprologus pulcher, the effects of social ascension on the stress axis were assessed. Ascenders rapidly filled experimentally created vacancies, adopting a dominant behavioural phenotype within 72 h-elevating aggression, activity, and workload, while receiving high rates of affiliative behaviours from their group members. Despite assuming behavioural dominance within their groups, ascenders displayed higher cortisol levels than dominants three days post-ascension. Additionally, compared to subordinates, ascenders had increased transcript abundance of steroidogenic acute regulatory protein (star) and cytochrome p450 side-chain cleavage enzyme (p450scc) in the head kidney, indicating activation of the stress axis. Cortisol levels were lowest in ascenders that displayed low rates of aggression, potentially reflecting the reestablishment of social stability in these groups. Increased transcript abundance of both glucocorticoid receptors (gr1 and gr2) in the brain's preoptic area (POA) of ascenders compared to dominants suggested an enhanced capacity for cortisol regulation via negative feedback. Our results reveal a regulatory cascade of behavioural and physiological interactions and highlight the importance of investigating the underlying mechanisms regulating the stress axis. Copyright © 2018. Published by Elsevier Inc.

  17. Conflitos de convicções em bioética clínica (Conflict of convictions on Clinical Bioethics - DOI: 10.5752/P.2175-5841.2013v11n30p607

    Directory of Open Access Journals (Sweden)

    Márcio Fabri dos Anjos

    2013-06-01

    Full Text Available O conflito de convicções traz consigo frequentes interrogações éticas em diferentes esferas das relações sociais. As convicções religiosas não são as únicas nesse sentido. Este ensaio usa um método interdisciplinar em vista de esclarecer alguns conceitos e critérios subjacentes ao tema, que podem ajudar no discernimento ético de tais conflitos. A Bioética Clínica é aqui uma particularização temática que ajuda uma concentração do discurso, ao mesmo tempo em que permite o aproveitamento desta reflexão para outras esferas. Ajuda também a perceber a estreita relação das convicções pessoais com a esfera pública em torno de questões vitais. Entre seus resultados, este ensaio ressalta que os conflitos de convicções podem ser fonte de benefícios para a convivência na sociedade plural. Seus desafios éticos se concentram na necessária abertura das convicções ao diálogo com os diferentes. No exercício do diálogo, a reflexão da Bioética se distingue da Biopolítica e sugere que as convicções subjetivas por vezes se vejam contraditadas por ordenamentos jurídicos, antes que se amadureçam consensos sobre critérios éticos. Palavras-chave: Convicções – Bioética Clínica – Conflitos éticos   Abstract the conflict of convictions brings frequent ethical questions in different spheres of social relations. Religious convictions are not the only in this sense. This essay uses an interdisciplinary method in order to clarify some concepts and criteria underlying this issue, which can help in ethical discernment of such conflicts. Clinical Bioethics is a particularization theme here that helps a concentration of discourse, while allowing the use of this reflection to other spheres. It also helps to understand the close relationship of personal convictions with the public sphere around vital issues. Among their results, this paper points out that conflicts of convictions can be a source of benefits to living in a

  18. Experimental Infection of the Mayan Cichlid Cichlasoma urophthalmus with the Oomycete Aphanomyces invadans.

    Science.gov (United States)

    Aguirre-Ayala, Daniel; Vidal-Martínez, Víctor Manuel

    2015-08-01

    This study aimed to determine the susceptibility of the Mayan cichlid Cichlasoma urophthalmus to infection with the fungus Aphanomyces invadans (also known as epizootic ulcerative syndrome [EUS]). A total of 27 C. urophthalmus were exposed to the original A. Invadans 2006/86/EC strain by intramuscularly injecting the fish with 25,000 zoospores/ml or exposing the fish to a suspension of 25,000 zoospores/ml in 6-L aquaria for 30 days. To assess the infectious capacity of A. invadans, 3 golden barbs (Puntius semifasciolatus) were infected intramuscularly with 200,000 zoospores/ml. A second experiment using 100 C. urophthalmus was performed for 60 days with 50 fish in each treatment group. A polymerase chain reaction (PCR)-based diagnostic method was used; muscle and gills were the target tissues. In the first experiment, none of the exposed C. urophthalmus developed skin lesions related to A. invadans infection. However, PCR analysis revealed that infection had occurred. For the intramuscular treatment, there were significant differences between the controls and the muscle samples (Fisher's exact test; P 0.05). All golden barbs became infected, as indicated by PCR, and developed skin lesions typical of A. invadans infection. We concluded that C. urophthalmus was infected with A. invadans but was an asymptomatic carrier because skin lesions did not develop. In the second experiment, all fish were negative, suggesting that the fish had cleared the infection by the end of the experiment.

  19. Evolution of feeding specialization in Tanganyikan scale-eating cichlids: a molecular phylogenetic approach

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    Nishida Mutsumi

    2007-10-01

    Full Text Available Abstract Background Cichlid fishes in Lake Tanganyika exhibit remarkable diversity in their feeding habits. Among them, seven species in the genus Perissodus are known for their unique feeding habit of scale eating with specialized feeding morphology and behaviour. Although the origin of the scale-eating habit has long been questioned, its evolutionary process is still unknown. In the present study, we conducted interspecific phylogenetic analyses for all nine known species in the tribe Perissodini (seven Perissodus and two Haplotaxodon species using amplified fragment length polymorphism (AFLP analyses of the nuclear DNA. On the basis of the resultant phylogenetic frameworks, the evolution of their feeding habits was traced using data from analyses of stomach contents, habitat depths, and observations of oral jaw tooth morphology. Results AFLP analyses resolved the phylogenetic relationships of the Perissodini, strongly supporting monophyly for each species. The character reconstruction of feeding ecology based on the AFLP tree suggested that scale eating evolved from general carnivorous feeding to highly specialized scale eating. Furthermore, scale eating is suggested to have evolved in deepwater habitats in the lake. Oral jaw tooth shape was also estimated to have diverged in step with specialization for scale eating. Conclusion The present evolutionary analyses of feeding ecology and morphology based on the obtained phylogenetic tree demonstrate for the first time the evolutionary process leading from generalised to highly specialized scale eating, with diversification in feeding morphology and behaviour among species.

  20. Incipient sympatric speciation in Midas cichlid fish from the youngest and one of the smallest crater lakes in Nicaragua due to differential use of the benthic and limnetic habitats?

    Science.gov (United States)

    Kautt, Andreas F; Machado-Schiaffino, Gonzalo; Torres-Dowdall, Julian; Meyer, Axel

    2016-08-01

    Understanding how speciation can occur without geographic isolation remains a central objective in evolutionary biology. Generally, some form of disruptive selection and assortative mating are necessary for sympatric speciation to occur. Disruptive selection can arise from intraspecific competition for resources. If this competition leads to the differential use of habitats and variation in relevant traits is genetically determined, then assortative mating can be an automatic consequence (i.e., habitat isolation). In this study, we caught Midas cichlid fish from the limnetic (middle of the lake) and benthic (shore) habitats of Crater Lake Asososca Managua to test whether some of the necessary conditions for sympatric speciation due to intraspecific competition and habitat isolation are given. Lake As. Managua is very small (Midas cichlids, Amphilophus tolteca. We found that fish from the limnetic habitat were more elongated than fish collected from the benthic habitat, as would be predicted from ecomorphological considerations. Stable isotope analyses confirmed that the former also exhibit a more limnetic lifestyle than the latter. Furthermore, split-brood design experiments in the laboratory suggest that phenotypic plasticity is unlikely to explain much of the observed differences in body elongation that we observed in the field. Yet, neutral markers (microsatellites) did not reveal any genetic clustering in the population. Interestingly, demographic inferences based on RAD-seq data suggest that the apparent lack of genetic differentiation at neutral markers could simply be due to a lack of time, as intraspecific competition may only have begun a few hundred generations ago.

  1. Biology of Crassicutis cichlasomae, a parasite of cichlid fishes in Mexico and Central America.

    Science.gov (United States)

    Scholz, T; Pech-Ek, M C; Rodriguez-Canul, R

    1995-03-01

    Field study on the biology of Crassicutis cichlasomae Manter, 1936 (Digenea: Homalometridae) was carried out in a small swamp in a limestone factory near Mérida, Yucatán, Mexico. Aquatic snails, Littorina (Littoridinopis) angulifera, harbouring C. cichlasomae rediae, cercariae and metacercariae, served both as the first and second intermediate hosts. Feeding experiments confirmed the conspecificity of metacercariae from naturally infected snails with adults from naturally infected fish. Gravid C. cichlasomae worms were obtained from experimentally infected fish 19 days post exposure at 22-24 degrees C. Examination of fish from the swamp in Mitza and other localities in the Yucatan Peninsula showed that the cichlids Cichlasoma urophthalmus and C. meeki were definitive hosts of C. cichlasomae. There was no pronounced preference of C. cichlasomae adults for the site of their location in the intestine of the definitive host; a slightly higher proportion (41%) of worms was only found in the anterior third of the gut. The time of miracidium development varied from 18.5 to 27.5 days; different temperature (20.1-35.7 degrees C) or light/darkness regimes influenced only slightly the rate of embryonic development, with shorter development times at higher temperature (34.8-35.7 degrees C) and constant darkness and/or light. With the exception of the sporocyst, all developmental stages are described and figured.

  2. 22 CFR 140.9 - Other non-governmental entities and individuals.

    Science.gov (United States)

    2010-04-01

    ... been involved in drug trafficking or may have been convicted of a narcotics offense. Procedures set... in drug trafficking, as defined in this part, shall be subject to refund or recall. (c... years, they have not been convicted of a narcotics offense, have not been engaged in drug trafficking...

  3. Smooth criminal: convicted rule-breakers show reduced cognitive conflict during deliberate rule violations.

    Science.gov (United States)

    Jusyte, Aiste; Pfister, Roland; Mayer, Sarah V; Schwarz, Katharina A; Wirth, Robert; Kunde, Wilfried; Schönenberg, Michael

    2017-09-01

    Classic findings on conformity and obedience document a strong and automatic drive of human agents to follow any type of rule or social norm. At the same time, most individuals tend to violate rules on occasion, and such deliberate rule violations have recently been shown to yield cognitive conflict for the rule-breaker. These findings indicate persistent difficulty to suppress the rule representation, even though rule violations were studied in a controlled experimental setting with neither gains nor possible sanctions for violators. In the current study, we validate these findings by showing that convicted criminals, i.e., individuals with a history of habitual and severe forms of rule violations, can free themselves from such cognitive conflict in a similarly controlled laboratory task. These findings support an emerging view that aims at understanding rule violations from the perspective of the violating agent rather than from the perspective of outside observer.

  4. Defendant's or convict's competency to stand trial - forensic psychiatric evaluation.

    Science.gov (United States)

    Cynkier, Przemysław N

    2017-01-01

    The purpose of this paper was to draw attention to particularly important aspects of pronouncing forensic psychiatric judgment regarding the accused or convicted individuals' competency to stand trial. The level of a person's mental capacity should be established using a structured psychiatric interview concerning a variety of aspects of a trial. Emphasis should be placed on evaluating the defendant's consciousness of the charges, knowledge of the potential punishment, ability to make significant decisions and be engaged in defense, knowledge about the role that particular people present in the courtroom play, understanding of the meaning of the evidence gathered in the case, the risk of aggression. The analysis should take into account the specificity of the mental disorder, the influence of proceedings on the course of disorder, as well as the presence of reactive disorders. Using testing tools by the expert can facilitate the process of evaluation to a certain degree. Forensic psychiatric evaluations can give rise to difficulties for the experts, what with the changing legal regulations and their interpretations. It would be justified to develop the standards of evaluation in this kind of cases, which would on the one hand apply to experts but which would also be respected by the judicial organ.

  5. Acquisition of Lateralized Predation Behavior Associated with Development of Mouth Asymmetry in a Lake Tanganyika Scale-Eating Cichlid Fish.

    Directory of Open Access Journals (Sweden)

    Yuichi Takeuchi

    Full Text Available The scale-eating cichlid Perissodus microlepis with asymmetric mouth is an attractive model of behavioral laterality: each adult tears off scales from prey fishes' left or right flanks according to the direction in which its mouth is skewed. To investigate the development of behavioral laterality and mouth asymmetry, we analyzed stomach contents and lower jaw-bone asymmetry of various-sized P. microlepis (22 ≤ SL<115 mm sampled in Lake Tanganyika. The shapes of the pored scales found in each specimen's stomach indicated its attack side preference. Early-juvenile specimens (SL<45 mm feeding mainly on zooplankton exhibited slight but significant mouth asymmetry. As the fish acquired scale-eating (45 mm ≤ SL, attack side preference was gradually strengthened, as was mouth asymmetry. Among size-matched individuals, those with more skewed mouths ate more scales. These findings show that behavioral laterality in scale-eating P. microlepis is established in association with development of mouth asymmetry which precedes the behavioral acquisition, and that this synergistic interaction between physical and behavioral literalities may contribute to efficient scale-eating.

  6. Usefulness of indirect alcohol biomarkers for predicting recidivism of drunk-driving among previously convicted drunk-driving offenders: results from the recidivism of alcohol-impaired driving (ROAD) study.

    Science.gov (United States)

    Maenhout, Thomas M; Poll, Anneleen; Vermassen, Tijl; De Buyzere, Marc L; Delanghe, Joris R

    2014-01-01

    In several European countries, drivers under the influence (DUI), suspected of chronic alcohol abuse are referred for medical and psychological examination. This study (the ROAD study, or Recidivism Of Alcohol-impaired Driving) investigated the usefulness of indirect alcohol biomarkers for predicting drunk-driving recidivism in previously convicted drunk-driving offenders. The ROAD study is a prospective study (2009-13) that was performed on 517 randomly selected drivers in Belgium. They were convicted for drunk-driving for which their licence was confiscated. The initial post-arrest blood samples were collected and analysed for percentage carbohydrate-deficient transferrin (%CDT), transaminsase activities [alanine amino transferase (ALT), aspartate amino transferase (AST)], gamma-glutamyltransferase (γGT) and red cell mean corpuscular volume (MCV). The observation time for each driver was 3 years and dynamic. A logistic regression analysis revealed that ln(%CDT) (P drunk-driving. The ROAD index (which includes ln(%CDT), ln(γGT), -ln(ALT) and the sex of the driver) was calculated and had a significantly higher area under the receiver operator characteristic curve (0.71) than the individual biomarkers for drunk-driving recidivism. Drivers with a high risk of recidivating (ROAD index ≥ 25%; third tertile) could be distinguished from drivers with an intermediate risk (16% ≤ ROAD index drunk-driving. The association with gamma-glutamyltransferase, alanine amino transferase and the sex of the driver could have additional value for identifying drunk-drivers at intermediate risk of recidivism. Non-specific indirect alcohol markers, such as alanine amino transferase, gamma-glutamyltransferase, aspartate amino transferase and red cell mean corpuscular volume have minimal added value to % carbohydrate-deficient transferrin for distinguishing drunk drivers with a low or high risk of recidivism. © 2013 Society for the Study of Addiction.

  7. Self-Generated Motives for Not Gambling Among Young Adult Non-gamblers.

    Science.gov (United States)

    Rash, Christina L; McGrath, Daniel S

    2017-09-01

    Motivational models have been shown to usefully describe reasons for engaging in addictive behaviors including gambling disorder. Although most scales designed to measure motives have been derived statistically, self-generated open-ended responses have also shown utility for identifying unique motives for gambling. While the motivational structure for gambling disorder has been extensively explored, there has been a paucity of research examining motives for choosing not to gamble. This is not the case for other addictive behaviors such as alcohol use where motives for abstaining from drinking have been well defined. The primary goal of this study was to qualitatively explore and identify motives for not gambling in a sample of young adult non-gamblers using open-ended responses. A sample (N = 196) of undergraduate current non-gamblers, defined as no gambling activity over the previous 12 months, completed a series of questionnaires on demographics, gambling behavior, and alcohol consumption. Furthermore, they were asked to provide their top three reasons for not gambling in rank order. The results revealed eight specific motives for why participants chose not to gamble: 'financial reasons and risk aversion'; 'disinterest and other priorities'; 'personal and religious convictions'; 'addiction concerns'; 'influence of others' values'; 'awareness of the odds'; 'lack of access, opportunity, or skill'; and 'emotional distress'. Personal and religious convictions reasons were also related to lifetime non-drinking, suggesting that these motives are associated with decreased addictive behaviors in general. Ultimately, these results may help to inform the design of prevention strategies for gambling disorder.

  8. The Morality of Men Convicted of Domestic Violence: How It Supports the Maintenance of the Moral Self-Concept.

    Science.gov (United States)

    Marzana, Daniela; Vecina, María L; Alfieri, Sara

    2016-12-01

    The phenomenon of abuse toward women is a prevalent social problem in most societies. In the present work, we take into consideration the abusive man's point of view with particular reference to the sphere of their morality and set as aims: (a) to show that high levels of self-deception are mediating between an extreme moral worldview, called moral absolutism, and a functional high moral self-concept, (b) to analyze the relation of the five moral foundations (Harm, Fairness, Ingroup, Authority, and Purity) with this moral absolutism, and (c) to test a comprehensive model of the relationships between the individuated variables in the preceding hypotheses. Participants are 264 men convicted of domestic violence offenses, who, having begun court-mandated psychological treatment lasting 12 weeks, have filled out a self-report questionnaire during the second meeting. The results reveal that (a) self-deception is as a full mediator between moral absolutism and moral self-concept in men convicted of domestic violence and in such a way that the more they felt right about their moral beliefs, the more they deceived themselves, and the more they felt good about themselves, (b) the moral foundations could be explaining moral absolutism understood as a rigid moral vision of the world, and (c) the tested model produces satisfying fit indices. Finally, we discuss the applied implications, for example, a key role can be played by the family and the school: Moral socialization begins within the family and there finds the first push that will accompany it the rest of life.

  9. The role of otolith size in hearing – Insights from cichlid fishes

    Directory of Open Access Journals (Sweden)

    Tanja Schulz-Mirbach

    2015-10-01

    Full Text Available Otolithic end organs in fishes function as accelerometers and are involved in the senses of balance and hearing (e.g. Popper et al. 2005. Otolith mass and shape are likely decisive factors influencing otolith motion, but while it is largely unknown how different shapes affect otolith movement relative to the sensory epithelium (Popper et al. 2005, greater otolith mass is predicted to result in enhanced stimulation of sensory hair cells and improved hearing (Lychakov and Rebane 2005. What few studies exist on this topic, however, yielded contradicting results in that they did or did not find a correlation between increased otolith mass and enhanced hearing (see Kéver et al. 2014. We investigated the relationship between otolith morphology (including 3D-models of otoliths based on high-resolution microCT imaging and otolith weight and hearing abilities in cichlids while comparing three species (Etroplus maculatus, Hemichromis guttatus, Steatocranus tinanti with different swimbladder morphology and hearing abilities (Schulz-Mirbach et al. 2014. We predicted Etroplus maculatus—the species that displays the best hearing sensitivities—to possess larger/heavier otoliths. As swimbladder extensions in this species are connected to the lagena, we further predicted to find heavier lagenar otoliths. Compared to H. guttatus and S. tinanti, E. maculatus showed the heaviest saccular otoliths, while lagenar otoliths were significantly thinner and lighter than in the former two species, apparently contradicting the hypothesis that the lagena and its otolith are primarily involved in improved hearing abilities. Our results support the idea that there is no ‘simple’ relationship between otolith weight, ancilliary auditory structures and hearing abilities. 3D-models of inner ears and otoliths may be ideally suited for future studies modeling complex otolith motion and thus, may provide a better understanding of how otolith morphology contributes to inner

  10. Non-native fishes of the central Indian River Lagoon

    Science.gov (United States)

    Schofield, Pamela J.; Loftus, William F.; Reaver, Kristen M.

    2018-01-01

    We provide a comprehensive review of the status of non-native fishes in the central Indian River Lagoon (from Cape Canaveral to Grant-Valkaria, east of I-95) through literature review and field surveys. Historical records exist for 17 taxa (15 species, one hybrid, one species complex). We found historical records for one additional species, and collected one species in our field survey that had never been recorded in the region before (and which we eradicated). Thus, we evaluate 19 total taxa herein. Of these, we documented range expansion of four salt-tolerant cichlid species, extirpation of six species that were previously recorded from the area and eradication of three species. There was no noticeable change in geographic range for one widespread species and the records for one species are doubtful and may be erroneous. Currently, there is not enough information to evaluate geographic ranges for four species although at least one of those is established.

  11. Male courtship preferences demonstrate discrimination against allopatric colour morphs in a cichlid fish.

    Science.gov (United States)

    Zoppoth, P; Koblmüller, S; Sefc, K M

    2013-03-01

    Whether premating isolation is achieved by male-specific, female-specific or sex-independent assortative preferences often depends on the underlying evolutionary processes. Here we test mate preferences of males presented with females of different allopatric colour variants of the cichlid fish Tropheus sp., a Lake Tanganyika endemic with rich geographical colour pattern variation, in which the strength of sexual isolation varies between populations. We conducted two-way mate choice experiments to compare behaviour of males of a red-bodied morph (population Moliro) towards females from their own population with behaviour towards females from four allopatric populations at different stages of phylogenetic and phenotypic divergence. Males courted same-population females significantly more intensely than females of other populations, and reduced their heteromorphic courtship efforts both with increasing genetic and increasing phenotypic distinctness of the females. In particular, females of a closely related red-bodied population received significantly more courtship than either genetically distinct, similarly coloured females ('Kirschfleck' morph) or genetically related, differently coloured females ('yellow-blotch' morph), both of which were courted similarly. Genetically and phenotypically distinct females (Tropheus polli) were not courted at all. Consistent with previous female-choice experiments, female courtship activity also decreased with increasing genetic distance from the males' population. Given successful experimental and natural introgression between colour morphs and the pervasive allopatry of related variants, we consider it unlikely that assortative preferences of both sexes were driven by direct selection during periods of secondary contact or, in turn, drove colour pattern differentiation in allopatry. Rather, we suggest that sexual isolation evolved as by-product of allopatric divergence. © 2012 The Authors. Journal of Evolutionary Biology © 2012

  12. Complete mitochondrial DNA sequences of the Victoria tilapia (Oreochromis variabilis) and Redbelly Tilapia (Tilapia zilli): genome characterization and phylogeny analysis.

    Science.gov (United States)

    Kinaro, Zachary Omambia; Xue, Liangyi; Volatiana, Josies Ancella

    2016-07-01

    The Cichlid fishes have played an important role in evolutionary biology, population studies and aquaculture industry with East African species representing a model suited for studying adaptive radiation and speciation for cichlid genome projects in which closely related genomes are fast emerging presenting questions on phenotype-genotype relations. The complete mitochondrial genomes presented here are for two closely related but eco-morphologically distinct Lake Victoria basin cichlids, Oreochromis variabilis, an endangered native species and Tilapia zilli, an invasive species, both of which are important economic fishes in local areas. The complete mitochondrial genomes determined for O. variabilis and T. zilli are 16 626 and 16,619 bp, respectively. Both the mitogenomes contain 13 protein-coding genes, 22 tRNAs, 2 rRNAs and a non-coding control region, which are typical of vertebrate mitogenomes. Phylogenetic analyses of the two species revealed that though both lie within family Cichlidae, they are remotely related.

  13. Mitochondrial molecular clocks and the origin of the major Otocephalan clades (Pisces: Teleostei)

    DEFF Research Database (Denmark)

    Peng, Zuogang; He, Shunping; Wang, Jun

    2006-01-01

    The Otocephala, a clade including ostariophysan and clupeomorph teleosts, represents about a quarter of total fish species diversity, with about 1000 genera and more than 7000 species. A series of recent papers have defended that the origin of this clade and of its major groups may be significantly...... otophysans could have originated before the splitting of the Pangean supercontinent is of extreme importance, since otophysan fishes are among the most useful animal groups for the determination of historical continental relationships. In the present work we examined divergence times for each major...... otocephalan group by an analysis of complete mtDNA sequences, in order to investigate if these divergence times support the hypotheses advanced in recent studies. The complete mtDNA sequences of nine representative non-otocephalan fish species and of twenty-one representative otocephalan species was compared...

  14. Enhanced solid waste management by understanding the effects of gender, income, marital status, and religious convictions on attitudes and practices related to street littering in Nablus - Palestinian territory

    International Nuclear Information System (INIS)

    Al-Khatib, Issam A.; Arafat, Hassan A.; Daoud, Raeda; Shwahneh, Hadeel

    2009-01-01

    Litter is recognized as a form of street pollution and a key issue for solid waste managers. Nablus district (West Bank, Palestinian Territory), which has an established network of urban and rural roads, suffers from a wide-spread litter problem that is associated with these roads and is growing steadily with a well-felt negative impact on public health and the environment. The purpose of this research was to study the effects of four socio-economic characteristics (gender, income, marital status, and religious convictions) of district residents on their attitudes, practices, and behavior regarding street litter generation and to suggest possible remedial actions. All four characteristics were found to have strong correlations, not only with littering behavior and practices, but also with potential litter prevention strategies. In particular, the impact of religious convictions of the respondents on their littering habits and attitudes was very clear and interesting to observe

  15. Swimming with multiple propulsors: measurement and comparison of swimming gaits in three species of neotropical cichlids.

    Science.gov (United States)

    Feilich, Kara L

    2017-11-15

    Comparative studies of fish swimming have been limited by the lack of quantitative definitions of fish gaits. Traditionally, steady swimming gaits have been defined categorically by the fin or region of the body that is used as the main propulsor and named after major fish clades (e.g. carangiform, anguilliform, balistiform, labriform). This method of categorization is limited by the lack of explicit measurements, the inability to incorporate contributions of multiple propulsors and the inability to compare gaits across different categories. I propose an alternative framework for the definition and comparison of fish gaits based on the propulsive contribution of each structure (body and/or fin) being used as a propulsor relative to locomotor output, and demonstrate the effectiveness of this framework by comparing three species of neotropical cichlids with different body shapes. This approach is modular with respect to the number of propulsors considered, flexible with respect to the definition of the propulsive inputs and the locomotor output of interest, and designed explicitly to handle combinations of propulsors. Using this approach, gait can be defined as a trajectory through propulsive space, and gait transitions can be defined as discontinuities in the gait trajectory. By measuring and defining gait in this way, patterns of clustering corresponding to existing categorical definitions of gait may emerge, and gaits can be rigorously compared across categories. © 2017. Published by The Company of Biologists Ltd.

  16. Yolk-sac larval development of the substrate-brooding cichlid Archocentrus nigrofasciatus in relation to temperature.

    Science.gov (United States)

    Vlahos, Nikolaos; Vasilopoulos, Michael; Mente, Eleni; Hotos, George; Katselis, George; Vidalis, Kosmas

    2015-09-01

    In order to conserve and culture the cichlid fish Archocentrus nigrofasciatus, more information about its reproductive biology and its larval behavior and morphogenesis is necessary. Currently, temperatures ranging from 21 to 27 °C are used in ornamental aquaculture hatcheries. Lower temperatures are preferred to reduce the costs of water heating, and 23 °C is usually the selected temperature. However, there is limited information on culturing protocols for ornamental species and most of the information generated on this topic remains scarce. Thus, the present study examines the morphological development of Archocentrus nigrofasciatus during the yolk-sac period up to the age of 100 h post-hatching in relation to 2 temperature regimes used in ornamental aquaculture: a temperature of 27 °C (thermal optimum) and a decreased temperature of 23 °C (thermal tolerance). The results of this study suggest that the 27 °C temperature generates intense morphological changes in yolk-sac development in a shorter period. This has advantages as it reduces the time of yolk-sac larval development, and, thus, minimizes the transition phase to exogenous feeding and maximizes the efficiency at which yolk is converted into body tissues. The present paper provides necessary information to produce freshwater ornamental fish with better practices so as to increase larval survival and capitalize on time for growth. © 2015 International Society of Zoological Sciences, Institute of Zoology/Chinese Academy of Sciences and Wiley Publishing Asia Pty Ltd.

  17. Penal stress and its manifestations in the convicts, suspects and accused persons

    Directory of Open Access Journals (Sweden)

    Melnikova D.V.

    2015-08-01

    Full Text Available The paper is devoted to penal stress and its manifestations at the convicts, suspects and accused persons. This topic has been poorly studied. It is necessary to identify the groups of people especially most in need of prevention and correction of stress state and to define the target effects. The paper presents a theoretical analysis of the concepts of biological and psychological stress. Our theoretical work is mainly devoted to phenomenon of penal stress and factors affecting its formation. We suggested the definition of penal stress concept on the basis of the analyzed literature. The sample included 69 male persons (31 from predetention center, 38 from penal colony, aged 19 to 47 years old. Experimental psychological method of research was mainly used. In the practical part of the paper presents data on the prevalence of the penal stress in predetention centers and penal colonies. In addition, we have studied the relationship of penal stress with punishment stage, the crime characteristics of subjects, individual psychological characteristics, current state. The study allows us to reveal the groups of people in need of the prevention and correction of the penal stress state. We identified some target corrective action also.

  18. Induced cytochrome P450 1A activity in cichlid fishes from Guandu River and Jacarepaguá Lake, Rio de Janeiro, Brazil.

    Science.gov (United States)

    Parente, Thiago E M; De-Oliveira, Ana C A X; Paumgartten, Francisco J R

    2008-03-01

    The induction of cytochrome P4501A-mediated activity (e.g. ethoxyresorufin-O-deethylation, EROD) has been used as a biomarker for monitoring fish exposure to AhR-receptor ligands such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and polychlorinated dibenzo-dioxins/furans (PCDD/Fs). In this study we found that hepatic EROD is induced in fish ("Nile tilapia", Oreochromis niloticus and "acará", Geophagus brasiliensis) from the Guandu River (7-17-fold) and Jacarepaguá Lake (7-fold), Rio de Janeiro, Brazil. Since both cichlid fish are consumed by the local population and the Guandu River is the main source of the drinking water supply for the greater Rio de Janeiro metropolitan area, pollution by cytochrome P4501A-inducing chemicals is a cause for concern and should be further investigated in sediments, water and biota. We additionally showed that EROD activity in the fish liver post-mitochondrial supernatant-simpler, cheaper and less time consuming to prepare than the microsomal fraction-is sufficiently sensitive for monitoring purposes.

  19. Cognitive-psychology expertise and the calculation of the probability of a wrongful conviction.

    Science.gov (United States)

    Rouder, Jeffrey N; Wixted, John T; Christenfeld, Nicholas J S

    2018-05-08

    Cognitive psychologists are familiar with how their expertise in understanding human perception, memory, and decision-making is applicable to the justice system. They may be less familiar with how their expertise in statistical decision-making and their comfort working in noisy real-world environments is just as applicable. Here we show how this expertise in ideal-observer models may be leveraged to calculate the probability of guilt of Gary Leiterman, a man convicted of murder on the basis of DNA evidence. We show by common probability theory that Leiterman is likely a victim of a tragic contamination event rather than a murderer. Making any calculation of the probability of guilt necessarily relies on subjective assumptions. The conclusion about Leiterman's innocence is not overly sensitive to the assumptions-the probability of innocence remains high for a wide range of reasonable assumptions. We note that cognitive psychologists may be well suited to make these calculations because as working scientists they may be comfortable with the role a reasonable degree of subjectivity plays in analysis.

  20. [Socio-demographic Characterization of Psychosexual Development and Crime in Men Convicted of Sexual Crimes Imprisoned in the Manizales Penitentiary Center].

    Science.gov (United States)

    Rivera, Adriana Arcila; Ramírez, Mauricio Castaño; Montoya, Dulcinea Osorio; Quiroz, Germán

    2013-03-01

    This article introduces the socio-demographic characteristics of psychosexual development and sexual crimes in men deprived of liberty for such crimes who are doing time in a Manizales prison (Colombia) in 2011. It also describes the differences between abusers of individuals under 12 years of age or who are 12 years old, and abusers of individuals over that age. This is a descriptive, retrospective study performed by simple random sampling. It consisted of semi-structured interviews in which socio-demographic characteristics, psychosexual development, characteristics of crime, and prevalence of mental disorders were analyzed in a sample of 80 inmates convicted of sexual offenses at the Medium-security Pentientiary center in the city of Manizales. Univariate and bivariate analysis were performed using the χ(2) test and the logistic regression analysis with variables showing statistical significance in the bivariate analysis. It was found that convicted sex offenders belong to lower socioeconomic levels, have low educational levels, and did not receive any sexual education. Such findings become more relevant when the crimes in questions are committed against 12-year-olders or children under this age. The lack of sexual education, low educational levels and lower socioeconomic levels are associated factors in the case of sexual offenses. It is important for society (particularly health-care institutions) to find additional measures for the criminalization of such behaviors in order to achieve a better control of the problem. Copyright © 2013 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  1. Insane defendants and forensic convicts: before and after the onset of the new forensic psychiatry network and the criminal justice system reform in Chile.

    Science.gov (United States)

    Cid, Rodrigo D

    2010-09-01

    Like other Latin American democratic societies, Chile is supposed to respect legal rights of mentally ill people who are in trouble with the law, and provide them protection, treatment and welfare. Therefore, in this decade, the Chilean Criminal Justice and Mental Health System has undergone significant changes. Because this article is related to the recent social features that involve different areas such as justice, mental health assistance and forensic psychiatry systems, and thereby the nonexistence of current literature that reviews this matter from a global perspective and its implications for the mental health population involved in the justice system, its review and analysis seems to be interesting. The 'New Forensic Psychiatry Network' (NFPN) has been putting in relevant efforts to offer proper treatment and forensic assessment taking into account the civil rights of mentally insane people, and the 'Criminal Justice System Reform' (CJSR) is making possible legal conditions for better justice ensuring a more just resolution of insane defendants' and mentally ill convicts' lawsuits. From the author's viewpoint, all these changes are leading to a deep cultural impact on a Chilean's mind, changing their vision of justice and how society should respect insane defendants' and mentally ill convicts' legal rights.

  2. The reproductive biology of an open-water spawning Lake Malawi ...

    African Journals Online (AJOL)

    The reproductive biology of an open-water spawning Lake Malawi cichlid, Copadichromis chrysonotus. Lance W. Smith. Abstract. Copadichromis chrysonotus is a zooplanktivorous cichlid member of the diverse fish community inhabiting Lake Malawi's rocky, littoral habitat. Like most Lake Malawi cichlids, this species' ...

  3. Occurrence of Sciadicleithrum mexicanum Kritsky, Vidal-Martinez et Rodríguez-Canul, 1994 (Monogenea: Dactylogyridae in the Cichlid Cichlasoma urophthalmus from a flooded quarry in Yucatan, Mexico

    Directory of Open Access Journals (Sweden)

    E. F. Mendoza-Franco

    1995-06-01

    Full Text Available Cichlids, Cichlasoma urophthalmus, collected in a flooded quarry in the Yucatan Peninsula, Mexico, from January through June 1992, had high levels of infection with the ancyrocephaline Sciadicleithrum mexicanum (Monogena: Dactylogyridade in all montlhly samples. Neither occurrence nor maturation of the worms eshibited any pronounced monthly fluctuation. The infection rate was found to be sizedependent, greater in longer fish. The worms occurred on primary lamellae of gill filaments of all arches, with lower numbers of parasites attached to the fourth gill arch. Otherwise, there was no significant site preference of worms. Only minor histopathological changes were found at the sites of attachment, and these were restricted to the epithelial cells of the primary lamellae of thegill filaments. The lack of seasonal periodicity in this tropical monogenean is compared to seasonal cycles typical of temperate species.

  4. The Freedom of the Judge to Express his Personal Opinions and Convictions under the ECHR

    Directory of Open Access Journals (Sweden)

    Sietske Dijkstra

    2017-01-01

    Full Text Available The freedom of the judge to express his personal opinions and convictions is limited by his special position. The question arises where these limits lie: what are the possibilities for judges to express their personal views on religious, political or other subjects, whether it is through speech, writing, wearing religious symbols or membership of an association or church? In this article the limits of the freedom of the judge will be studied as they appear from the case law of the ECtHR. Two types of cases from this case law are relevant for this subject: cases based on complaints from judges about a violation of their rights under Article 9-11 ECHR and cases based on complaints from litigants and suspects about a violation of their right to a fair trial under Article 6(1 ECHR. The question is asked how the limits of judicial freedom are defined in the case law of the ECtHR and where these limits lie.

  5. Money Now, Money Later: Linking Time Discounting and Criminal Convictions in the Cambridge Study in Delinquent Development.

    Science.gov (United States)

    Piquero, Alex R; Farrington, David P; Jennings, Wesley G

    2018-04-01

    Two prominent criminological theories offer time discounting, or the preference for an immediate reward over a later one, as a central part of understanding involvement in criminal activity. Yet, there exist only a few studies investigating this issue, and they are limited in a few respects. The current study extends prior work in this area by using multiple measures of time discounting collected at three different periods of the life course to examine the link to criminal offending into late middle adulthood in the Cambridge Study in Delinquent Development. Results show that greater time discounting is positively related to a higher number of criminal convictions by late middle adulthood, and this effect remains after controlling for early life-course individual and environmental risk in a multivariate framework. Study limitations and implications are also discussed.

  6. The Probation Service in the Context of European Integration. The Supervision of Convicts in the Community. Critical Observations

    Directory of Open Access Journals (Sweden)

    Ion RUSU

    2010-11-01

    Full Text Available The purpose of the appliance of non-custodial penalties, completed by the necessity of respecting the measures of surveillance and/or certain obligations imposed by the court, is to ensure the re-socialization and reintegration into the community to which they belong. In this context, at the European Union’s level it was adopted 2008/947/JHA Framework Decision of the Council on 27 November 2008 regarding the appliance of mutual recognition principle in the case of judgments and probation decisions for supervising the probation measures and alternative sanctions. The most important criterion under which judicial decision can be transmitted to another Member State is referring to the convicted person residency, considering that adopting such a measure the chances of social reintegration of the sentenced person will increase, allowing them to preserve the family, linguistic, cultural links. The probation service has a critical role for community supervision of the measures and obligations imposed by the Romanian court to the sentenced person. This institution has a number of specific tasks even when the Romanian court sends the legal judgment accompanied by the certificate in another Member State, seeking its recognition and enforcement. These responsibilities relate in particular to the cooperation activity that needs to be carried out with similarauthority of the executing Member State, since it can always intervene the possibility of restoring the competence of executing the decision of the Romanian court. The critical observations relate to the legislative act both European and our internal law.

  7. Temporal variation of Mexiconema cichlasomae (Nematoda: Daniconematidae) in the Mayan cichlid fish Cichlasoma urophthalmus and its intermediate host Argulus yucatanus from a tropical coastal lagoon.

    Science.gov (United States)

    May-Tec, A L; Pech, D; Aguirre-Macedo, M L; Lewis, J W; Vidal-Martínez, V M

    2013-03-01

    The aim of the present investigation was to determine whether temporal variation in environmental factors such as rainfall or temperature influence long-term fluctuations in the prevalence and mean abundance of the nematode Mexiconema cichlasomae in the cichlid fish Cichlasoma uropthalmus and its crustacean intermediate host, Argulus yucatanus. The study was undertaken in a tropical coastal lagoon in the Yucatan Peninsula (south-eastern Mexico) over an 8-year period. Variations in temperature, rainfall and monthly infection levels for both hosts were analysed using time series and cross-correlations to detect possible recurrent patterns. Infections of M. cichlasomae in A. yucatanus showed annual peaks, while in C. urophthalmus peaks were bi-annual. The latter appear to be related to the accumulation of several generations of this nematode in C. urophthalmus. Rainfall and temperature appear to be key environmental factors in influencing temporal variation in the infection of M. cichlasomae over periods longer than a year together with the accumulation of larval stages throughout time.

  8. Problem-solving mental flexibility in individuals who were convicted for murder / Flexibilidade mental na resolução de problemas em indivíduos que cumprem pena por homicídio qualificado

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    Viviane Del Pino

    2008-01-01

    Full Text Available This study aimed at assessing problem-solving mental flexibility in individuals who were convicted for qualified murder, and confined in a medium-security prison within the Metropolitan Area of Porto Alegre, Brazil. The quantitative cross-research study had a convenience sample (n=60 including 30 homicides, paired by gender, age, schooling and social class to 30 individuals who had no criminal records. Assessment instruments used were Wisconsin Card Sorting Test; Stroop Color and Word Test, WAIS-III Block Design, Digit-Symbol Coding and Vocabulary subtests, a Mini-International Psychiatric Interview and a socio-demographic datasheet. In the WCST categories and in the Stroop Test, the group of homicides showed lower scores than the control group with a statistically significant difference (p<0,05. It is concluded that individuals convicted for qualified murder show lower problem-solving flexibility, than the individuals having no criminal records.

  9. Parental investment matters for maternal and offspring immune defense in the mouthbrooding cichlid Astatotilapia burtoni.

    Science.gov (United States)

    Keller, Isabel S; Salzburger, Walter; Roth, Olivia

    2017-12-20

    Parental care, while increasing parental fitness through offspring survival, also bears cost to the care-giving parent. Consequentially, trade offs between parental care and other vitally important traits, such as the immune system seem evident. In co-occurring phases of parental care and immunological challenges negative consequences through a resource allocation trade off on both the parental and the offspring conditions can be predicted. While the immune system reflects parental stress conditions, parental immunological investments also boost offspring survival via the transfer of immunological substances (trans-generational immune priming). We investigated this relationship in the mouthbrooding East African cichlid Astotatilapia burtoni. Prior to mating, females were exposed to an immunological activation, while others remained immunologically naïve. Correspondingly, the immunological status of females was either examined directly after reproduction or after mouthbrooding had ceased. Offspring from both groups were exposed to immunological challenges to assess the extent of trans-generational immune priming. As proxy for immune status, cellular immunological activity and gene expression were determined. Both reproducing and mouthbrooding females allocate their resources towards reproduction. While upon reproduction the innate immune system was impeded, mouthbrooding females showed an attenuation of inflammatory components. Juveniles from immune challenged mouthbrooding females showed downregulation of immune and life history candidate genes, implying a limitation of trans-generational plasticity when parents experience stress during the costly reproductive phase. Our results provide evidence that both parental investment via mouthbrooding and the rise of the immunological activity upon an immune challenge are costly traits. If applied simultaneously, not only mothers seem to be impacted in their performance, but also offspring are impeded in their ability to

  10. Demography and genome divergence of lake and stream populations of an East African cichlid fish.

    Science.gov (United States)

    Egger, Bernd; Roesti, Marius; Böhne, Astrid; Roth, Olivia; Salzburger, Walter

    2017-10-01

    Disentangling the processes and mechanisms underlying adaptive diversification is facilitated by the comparative study of replicate population pairs that have diverged along a similar environmental gradient. Such a setting is realized in a cichlid fish from southern Lake Tanganyika, Astatotilapia burtoni, which occurs within the lake proper as well as in various affluent rivers. Previously, we demonstrated that independent lake and stream populations show similar adaptations to the two habitat regimes. However, little is known about the evolutionary and demographic history of the A. burtoni populations in question and the patterns of genome divergence among them. Here, we apply restriction site-associated DNA sequencing (RADseq) to examine the evolutionary history, the population structure and genomic differentiation of lake and stream populations in A. burtoni. A phylogenetic reconstruction based on genome-wide molecular data largely resolved the evolutionary relationships among populations, allowing us to re-evaluate the independence of replicate lake-stream population clusters. Further, we detected a strong pattern of isolation by distance, with baseline genomic divergence increasing with geographic distance and decreasing with the level of gene flow between lake and stream populations. Genome divergence patterns were heterogeneous and inconsistent among lake-stream population clusters, which is explained by differences in divergence times, levels of gene flow and local selection regimes. In line with the latter, we only detected consistent outlier loci when the most divergent lake-stream population pair was excluded. Several of the thus identified candidate genes have inferred functions in immune and neuronal systems and show differences in gene expression between lake and stream populations. © 2017 John Wiley & Sons Ltd.

  11. Hierarchical structure of ecological and non-ecological processes of differentiation shaped ongoing gastropod radiation in the Malawi Basin.

    Science.gov (United States)

    Van Bocxlaer, Bert

    2017-09-13

    Ecological processes, non-ecological processes or a combination of both may cause reproductive isolation and speciation, but their specific roles and potentially complex interactions in evolutionary radiations remain poorly understood, which defines a central knowledge gap at the interface of microevolution and macroevolution. Here I examine genome scans in combination with phenotypic and environmental data to disentangle how ecological and non-ecological processes contributed to population differentiation and speciation in an ongoing radiation of Lanistes gastropods from the Malawi Basin. I found a remarkable hierarchical structure of differentiation mechanisms in space and time: neutral and mutation-order processes are older and occur mainly between regions, whereas more recent adaptive processes are the main driver of genetic differentiation and reproductive isolation within regions. The strongest differentiation occurs between habitats and between regions, i.e. when ecological and non-ecological processes act synergistically. The structured occurrence of these processes based on the specific geographical setting and ecological opportunities strongly influenced the potential for evolutionary radiation. The results highlight the importance of interactions between various mechanisms of differentiation in evolutionary radiations, and suggest that non-ecological processes are important in adaptive radiations, including those of cichlids. Insight into such interactions is critical to understanding large-scale patterns of organismal diversity. © 2017 The Author(s).

  12. Citations and Convictions: One Community’s Coordinated Response to Intimate Partner Violence & Efforts toward Offender Accountability

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    Kerry Beldin

    2015-05-01

    Full Text Available In 1996, a coordinated community response (CCR was formally established in a mid-sized Midwestern city to improve the criminal justice response to intimate partner violence (IPV. Data for this study included all IPV-related incidents to which the local police department responded since the establishment of the CCR for a fourteen year period. Effective CCRs provide for IPV offender accountability through citation and prosecution of IPV-related crimes. Concerns about demographic variables affecting citation and prosecution rates have been identified in the literature. Compared to national statistics, gender differences were consistent but higher citation and conviction rates were identified in this community. While differences related to race were found, they were small in size. Although lack of data available from the time prior to the implementation of the CCR model for comparison precludes a definitive conclusion about the effectiveness of the CCR, our findings suggest there is benefit to having one.

  13. The evolution of cooperative breeding in the African cichlid fish, Neolamprologus pulcher.

    Science.gov (United States)

    Wong, Marian; Balshine, Sigal

    2011-05-01

    The conundrum of why subordinate individuals assist dominants at the expense of their own direct reproduction has received much theoretical and empirical attention over the last 50 years. During this time, birds and mammals have taken centre stage as model vertebrate systems for exploring why helpers help. However, fish have great potential for enhancing our understanding of the generality and adaptiveness of helping behaviour because of the ease with which they can be experimentally manipulated under controlled laboratory and field conditions. In particular, the freshwater African cichlid, Neolamprologus pulcher, has emerged as a promising model species for investigating the evolution of cooperative breeding, with 64 papers published on this species over the past 27 years. Here we clarify current knowledge pertaining to the costs and benefits of helping in N. pulcher by critically assessing the existing empirical evidence. We then provide a comprehensive examination of the evidence pertaining to four key hypotheses for why helpers might help: (1) kin selection; (2) pay-to-stay; (3) signals of prestige; and (4) group augmentation. For each hypothesis, we outline the underlying theory, address the appropriateness of N. pulcher as a model species and describe the key predictions and associated empirical tests. For N. pulcher, we demonstrate that the kin selection and group augmentation hypotheses have received partial support. One of the key predictions of the pay-to-stay hypothesis has failed to receive any support despite numerous laboratory and field studies; thus as it stands, the evidence for this hypothesis is weak. There have been no empirical investigations addressing the key predictions of the signals of prestige hypothesis. By outlining the key predictions of the various hypotheses, and highlighting how many of these remain to be tested explicitly, our review can be regarded as a roadmap in which potential paths for future empirical research into the

  14. Criminal history and future offending of juveniles convicted of the possession of child pornography.

    Science.gov (United States)

    Aebi, Marcel; Plattner, Belinda; Ernest, Melanie; Kaszynski, Katie; Bessler, Cornelia

    2014-08-01

    Most child pornography is distributed online. It is estimated that 3% to 15% of child pornography consumers are juveniles. The present study analyzed a consecutive sample of 54 male juveniles convicted of the possession of child pornography. Demographic characteristics, criminal history, and subsequent offending were assessed from criminal files and official reports. Juvenile possessors of child pornography were compared to three different groups of juveniles: Juvenile possessors of other illegal pornography (n = 42), juveniles who committed a sexual contact offense against a child (n = 64), and juveniles who committed a sexual contact offense against a peer or adult (n = 104). Juvenile possessors of child pornography were found to have downloaded the illegal material more frequently and over a longer time period than juvenile possessors of other illegal pornography. Furthermore, juvenile possessors of child pornography differed from juveniles who had committed a sexual contact offense in terms of demographics and showed fewer previous and subsequent offending than juveniles who sexually offended against a peer or adult. We conclude that juvenile possessors of child pornography need a specific target intervention focusing on dysfunctional Internet use and sexually deviant arousal. © The Author(s) 2013.

  15. Fish embryo and juvenile size under hypoxia in the mouth-brooding African cichlid Pseudocrenilabrus multicolor

    Institute of Scientific and Technical Information of China (English)

    E.E.REARDON; L.J.CHAPMAN

    2012-01-01

    We used a field survey and a laboratory rearing experiment to (a) examine response (size and survival) to life-long hypoxia in offspring of the African maternal mouth-brooding cichlid Pseudocrenilabrus multicolor victoriae (Seegers) and (b) explore the degree to which developmental response can be environmentally-induced.Embryo size metrics were quantified in 9 field populations across a range of dissolved oxygen (DO) concentrations.In the laboratory,first generation (F1) broods of low-DO origin were reared under high or low DO.Brooding period was quantified for the mothers; and egg size,egg metabolic rate and juvenile size-at-release were quantified in their (F2) offspring.The F2 offspring were split and grown for 3 months post-release under high or low DO,and juvenile size and survival were quantified.In the field survey,across stages,embryos from low-DO field populations were shorter and weighed less than embryos from high-DO populations.In the laboratory experiment,F2 eggs and juveniles-at-release from mother's mouth did not differ in mass,length,survival regardless of development DO environment.However,juveniles diverged in size after leaving mother's mouth,exhibiting smaller size when grown under low DO.Size differences in embryo size across field populations and divergence in embryo size after release from the mother's mouthsupport predictions for smaller body size under hypoxia.There was no evidence for negative effects on survival of juveniles after 3 months.Brooding period was 16% shorter in females reared under low DO suggesting that hypoxia may accelerate embryo development.This work provides insights into how bearer fishes respond to hypoxic stress relative to fishes with no post-spawning parental care; a shorter brooding interval and smaller body size may provide an optimal solution to parent and embryo survival under hypoxia in brooding fishes.

  16. Measuring and evaluating morphological asymmetry in fish: distinct lateral dimorphism in the jaws of scale-eating cichlids.

    Science.gov (United States)

    Hata, Hiroki; Yasugi, Masaki; Takeuchi, Yuichi; Takahashi, Satoshi; Hori, Michio

    2013-11-01

    The left-right asymmetry of scale-eating Tanganyikan cichlids is described as a unilateral topographical shift of the quadratomandibular joints. This morphological laterality has a genetic basis and has therefore been used as a model for studying negative frequency-dependent selection and the resulting oscillation in frequencies of two genotypes, lefty and righty, in a population. This study aims were to confirm this laterality in Perissodus microlepis Boulenger and P. straeleni (Poll) and evaluate an appropriate method for measuring and testing the asymmetry. Left-right differences in the height of the mandible posterior ends (HMPE) and the angle between the neurocranium and vertebrae of P. microlepis and P. straeleni were measured on skeletal specimens. Snout-bending angle was also measured using a dorsal image of the same individuals following a previous method. To define which distribution model, fluctuating asymmetry (FA), directional asymmetry (DA), or antisymmetry (AS), best fit to the lateral asymmetry of the traits, we provided an R package, IASD. As a result, HMPE and neurocranium-vertebrae angle of both species were best fitted to AS, suggesting that P. microlepis and P. straeleni showed a distinct dimorphism in these traits, although snout-bending angle of P. microlepis was best fitted to FA. Measurement error was low for HMPE comparing the snout-bending angle in P. microlepis, indicating that measuring HMPE is a more accurate method. The scale-eating tribe Perissodini showed distinct antisymmetry in the jaw skeleton and neurocranium-vertebrae angle, and this laterality remains a valid marker for further evolutionary studies.

  17. AFLP genome scans suggest divergent selection on colour patterning in allopatric colour morphs of a cichlid fish.

    Science.gov (United States)

    Mattersdorfer, Karin; Koblmüller, Stephan; Sefc, Kristina M

    2012-07-01

    Genome scan-based tests for selection are directly applicable to natural populations to study the genetic and evolutionary mechanisms behind phenotypic differentiation. We conducted AFLP genome scans in three distinct geographic colour morphs of the cichlid fish Tropheus moorii to assess whether the extant, allopatric colour pattern differentiation can be explained by drift and to identify markers mapping to genomic regions possibly involved in colour patterning. The tested morphs occupy adjacent shore sections in southern Lake Tanganyika and are separated from each other by major habitat barriers. The genome scans revealed significant genetic structure between morphs, but a very low proportion of loci fixed for alternative AFLP alleles in different morphs. This high level of polymorphism within morphs suggested that colour pattern differentiation did not result exclusively from neutral processes. Outlier detection methods identified six loci with excess differentiation in the comparison between a bluish and a yellow-blotch morph and five different outlier loci in comparisons of each of these morphs with a red morph. As population expansions and the genetic structure of Tropheus make the outlier approach prone to false-positive signals of selection, we examined the correlation between outlier locus alleles and colour phenotypes in a genetic and phenotypic cline between two morphs. Distributions of allele frequencies at one outlier locus were indeed consistent with linkage to a colour locus. Despite the challenges posed by population structure and demography, our results encourage the cautious application of genome scans to studies of divergent selection in subdivided and recently expanded populations. © 2012 Blackwell Publishing Ltd.

  18. Infection of the muscle tissue of the filter-feeding cichlid, Chaetobranchopsis orbicularis Steindachner, 1875, by Kudoa orbicularis (Myxozoa: Multivalvulidae on Marajó Island in the Brazilian Amazon region

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    J.L. Sindeaux-Neto

    Full Text Available ABSTRACT This study describes aspects of infections caused by the myxosporidian Kudoa orbicularis in filter-feeding cichlids, Chaetobranchopsis orbicularis, caught in the Arari River in the municipality of Cachoeira do Arari, on Marajó Island, Pará, Brazil. The parasite forms pseudocysts scattered throughout the striated epaxial and hypaxial muscles. Samples embedded in paraffin were analyzed histologically using hematoxylin-eosin, Gömöri, Ziehl-Neelsen, and Giemsa staining. Necropsy of the C. orbicularis specimens revealed that 100% (50/50 were infected with K. orbicularis. The specimens presented grossly abnormal muscle texture, resulting in extensive inconsistencies and weakness. Progressive softening of the muscles was observed during necropsy, indicating the rapid enzymatic autolysis of the tissue. The parasite found in the muscle tissue of C. orbicularis was identified as K. orbicularis, with clinical signs of disease being observed in the fish. The necropsy revealed extensive damage to the host organism, with well-established fibrocystic infections in the muscle fibers, associated with post mortem myoliquefaction.

  19. Alternative reproductive tactics in snail shell-brooding cichlids diverge in energy reserve allocation.

    Science.gov (United States)

    von Kuerthy, Corinna; Tschirren, Linda; Taborsky, Michael

    2015-05-01

    Life history theory predicts that the amount of resources allocated to reproduction should maximize an individual's lifetime reproductive success. So far, resource allocation in reproduction has been studied mainly in females. Intraspecific variation of endogenous energy storage and utilization patterns of males has received little attention, although these patterns may vary greatly between individuals pursuing alternative reproductive tactics (ARTs). ARTs are characterized by systematic variation of behavioral, physiological, and often morphological traits among same-sex conspecifics. Some individuals may rely on previously accumulated reserves, because of limited foraging opportunities during reproduction. Others may be able to continue foraging during reproduction, thus relying on reserves to a lesser extent. We therefore predicted that, if male tactics involve such divergent limitations and trade-offs within a species, ARTs should correspondingly differ in energy reserve allocation and utilization. To test this prediction, we studied short-term and long-term reserve storage patterns of males in the shell-brooding cichlid Lamprologus callipterus. In this species, bourgeois males investing in territory defense, courtship, and guarding of broods coexist with two distinct parasitic male tactics: (1) opportunistic sneaker males attempting to fertilize eggs by releasing sperm into the shell opening when a female is spawning; and (2) specialized dwarf males attempting to enter the shell past the spawning female to fertilize eggs from inside the shell. Sneaker males differed from other male types by showing the highest amount of accumulated short-term and long-term fat stores, apparently anticipating their upcoming adoption of the nest male status. In contrast, nest males depleted previously accumulated energy reserves with increasing nest holding period, as they invest heavily into costly reproductive behaviors while not taking up any food. This conforms to a capital

  20. Comparative support for the expensive tissue hypothesis: Big brains are correlated with smaller gut and greater parental investment in Lake Tanganyika cichlids.

    Science.gov (United States)

    Tsuboi, Masahito; Husby, Arild; Kotrschal, Alexander; Hayward, Alexander; Buechel, Séverine D; Zidar, Josefina; Løvlie, Hanne; Kolm, Niclas

    2015-01-01

    The brain is one of the most energetically expensive organs in the vertebrate body. Consequently, the energetic requirements of encephalization are suggested to impose considerable constraints on brain size evolution. Three main hypotheses concerning how energetic constraints might affect brain evolution predict covariation between brain investment and (1) investment into other costly tissues, (2) overall metabolic rate, and (3) reproductive investment. To date, these hypotheses have mainly been tested in homeothermic animals and the existing data are inconclusive. However, there are good reasons to believe that energetic limitations might play a role in large-scale patterns of brain size evolution also in ectothermic vertebrates. Here, we test these hypotheses in a group of ectothermic vertebrates, the Lake Tanganyika cichlid fishes. After controlling for the effect of shared ancestry and confounding ecological variables, we find a negative association between brain size and gut size. Furthermore, we find that the evolution of a larger brain is accompanied by increased reproductive investment into egg size and parental care. Our results indicate that the energetic costs of encephalization may be an important general factor involved in the evolution of brain size also in ectothermic vertebrates. © 2014 The Author(s). Evolution © 2014 The Society for the Study of Evolution.

  1. A sex-specific trade-off between mating preferences for genetic compatibility and body size in a cichlid fish with mutual mate choice.

    Science.gov (United States)

    Thünken, Timo; Meuthen, Denis; Bakker, Theo C M; Baldauf, Sebastian A

    2012-08-07

    Mating preferences for genetic compatibility strictly depend on the interplay of the genotypes of potential partners and are therein fundamentally different from directional preferences for ornamental secondary sexual traits. Thus, the most compatible partner is on average not the one with most pronounced ornaments and vice versa. Hence, mating preferences may often conflict. Here, we present a solution to this problem while investigating the interplay of mating preferences for relatedness (a compatibility criterion) and large body size (an ornamental or quality trait). In previous experiments, both sexes of Pelvicachromis taeniatus, a cichlid fish with mutual mate choice, showed preferences for kin and large partners when these criteria were tested separately. In the present study, test fish were given a conflicting choice between two potential mating partners differing in relatedness as well as in body size in such a way that preferences for both criteria could not simultaneously be satisfied. We show that a sex-specific trade-off occurs between mating preferences for body size and relatedness. For females, relatedness gained greater importance than body size, whereas the opposite was true for males. We discuss the potential role of the interplay between mating preferences for relatedness and body size for the evolution of inbreeding preference.

  2. Pleistocene to holocene expansion of the black-belt cichlid in Central America, Vieja maculicauda (Teleostei: Cichlidae.

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    Caleb D McMahan

    Full Text Available The distributions of many Northern Hemisphere organisms have been influenced by fluctuations in sea level and climatic conditions during Pleistocene interglacial periods. These cycles are associated with range contraction and refugia for northern-distributed organisms as a response to glaciers. However, lower sea levels in the tropics and sub-tropics created available habitat for expansion of the ranges of freshwater organisms. The goal of this study was to use ecological niche modeling to test the hypothesis of north to south range expansion of Vieja maculicauda associated with Pleistocene glacial cycles. Understanding the biogeography of this widespread species may help us better understand the geology and interconnectivity of Central American freshwaters. Occurrence data for V. maculicauda was based on georeferencing of all museum records of specimens recovered from FishNet2. General patterns of phylogeographic structure were assessed with mtDNA. Present day niche models were generated and subsequently projected onto paleoclimatic maps of the region during the Last Interglacial, Last Glacial Maximum, and mid-Holocene. Phylogenetic analysis of mtDNA sequence data showed no phylogeographic structure throughout the range of this widespread species. Present day niche models were congruent with the observed distribution of V. maculicauda in Central America. Results showed a lack of suitable freshwater habitat in northern Central America and Mexico during the Last Interglacial, with greatest range expansion during the Last Glacial Maximum and mid-Holocene. Results support the hypothesis of a north to south range expansion of V. maculicauda associated with glacial cycles. The wide distribution of this species compared to other closely related cichlids indicates the latter did not respond to the degree of V. maculicauda in expansion of their distributions. Future work aimed at comparisons with other species and modeling of future climatic scenarios

  3. The evaluation of violent thinking in adult offenders and non-offenders using the Maudsley Violence Questionnaire.

    Science.gov (United States)

    Walker, Julian; Bowes, Nicola

    2013-04-01

    The Maudsley Violence Questionnaire (MVQ) was designed to measure explicit rules and beliefs associated with violence. Previous studies with young people and offenders with mental disorder found the MVQ to be a valid and reliable measure of violent thinking. This study explores the use of the MVQ with a 'normal' (non-offender) population and an offender population without mental illness in order to evaluate how the MVQ's subscales related to violence within these groups. The MVQ was given to 78 adult male participants along with a measure of self-reported violence; demographic information and criminal history were also recorded. Thirty-five of the participants were convicted adult male offenders resident of an adult male closed prison in South Wales; 43 were volunteers from the staff group in the same prison. The MVQ factors were compared with self-reported violence and with officially recorded violent convictions. Although both subscales of the MVQ related to self-reported violence, 'Machismo' showed a stronger relationship to both self-reported and officially recorded violence. Violent thinking, specifically beliefs measured by the Machismo subscale of the MVQ, was robustly associated with self-reported and officially recorded violence in this study with offender and non-offender adults. The MVQ is a valid and feasible measure for use with adult populations. Violent thinking (specifically Machismo thinking styles) should be included in the assessments of violent offenders. Work on violent thinking and reducing 'macho' thinking could be a useful adjunct to anger management work with violent offenders. Copyright © 2013 John Wiley & Sons, Ltd.

  4. Spatial and temporal repeatability in parasite community structure of tropical fish hosts.

    Science.gov (United States)

    Vidal-Martínez, V M; Poulin, R

    2003-10-01

    An assessment is made of the repeatability of parasite community structure in space for a marine fish, and in space and time for a freshwater fish from south-eastern Mexico. The marine fish species was the red grouper, Epinephelus morio (collected from 9 localities), and the freshwater species was the cichlid, Cichlasoma urophthalmus (collected from 6 localities: including monthly at 2 localities for 1 year, and bimonthly at 1 locality in 1990 and 1999). Pairwise interspecific associations and analyses of nested patterns in the distributions of parasite species among hosts were used in both fish species, with comparisons over time made only with the cichlid. Positive interspecific associations, and nested patterns were noted in some localities for both fish species, and/or at some sampling times for the cichlid fish. However, non-random patterns in the structure of parasite communities in these 2 host species only were observed sporadically. When present, nestedness in both fish species was apparently linked with a positive association between total infection intensities and fish size. Additionally, adjacent localities were more likely to display similar parasite community structure than distant ones. This preliminary result suggests that distance between localities is an important determinant of predictability in parasite community structure.

  5. The height of Tennessee convicts: another piece of the "antebellum puzzle".

    Science.gov (United States)

    Sunder, Marco

    2004-03-01

    Average height of the free population in the United States born in the mid-1830s began to decline despite growing per capita incomes. Explanations for this "antebellum puzzle" revolve around a possibly deteriorating disease environment promoted by urban agglomeration and increases in the relative price of protein-rich foods. However, several groups were immune to the effect, including members of the middle class, whose income was high enough, and increased enough to overcome the adverse developments and maintain their nutritional status. Although at the opposite end of the social spectrum, the height of male slaves also increased, as it was in their owners' interest to raise their slaves' food allotments. The height of Tennessee convicts, analyzed in this article, also increased in the late-1830s, being the third exception to the "antebellum puzzle." Mid-19th century Tennessee was integrated into interstate commerce in cotton and tobacco and experienced considerable movement of people who would have brought with them diseases from elsewhere, hence, it would have been integrated into the US disease pool, and the fact that heights did not decline in the 1830s is therefore an indication that the antebellum puzzle cannot be explained exclusively by the spread of diseases. Yet, Tennessee's economy was quite different to that of the rest of the country. Although it did export live swine to the South, these exports did not increase during the antebellum decades. Hence, Tennessee remained self-sufficient in pork, and consumption of pork did not decline. Thus, the evidence presented here is consistent with the economic interpretation of the "antebellum puzzle": self-sufficiency in protein production protected even the members of the lower-classes of Tennessee from the negative externalities associated with the onset of industrialization.

  6. Fish embryo and juvenile size under hypoxia in the mouth- brooding African cichlid Pseudocrenilabrus multicolor

    Directory of Open Access Journals (Sweden)

    E.E. REARDON, L.J. CHAPMAN

    2012-06-01

    Full Text Available We used a field survey and a laboratory rearing experiment to (a examine response (size and survival to life-long hypoxia in offspring of the African maternal mouth-brooding cichlid Pseudocrenilabrus multicolor victoriae (Seegers and (b explore the degree to which developmental response can be environmentally-induced. Embryo size metrics were quantified in 9 field populations across a range of dissolved oxygen (DO concentrations. In the laboratory, first generation (F1 broods of low-DO origin were reared under high or low DO. Brooding period was quantified for the mothers; and egg size, egg metabolic rate and juvenile size-at-release were quantified in their (F2 offspring. The F2 offspring were split and grown for 3 months post-release under high or low DO, and juvenile size and survival were quantified. In the field survey, across stages, embryos from low-DO field populations were shorter and weighed less than embryos from high-DO populations. In the laboratory experiment, F2 eggs and juveniles-at-release from mother’s mouth did not differ in mass, length, survival regardless of development DO environment. However, juveniles diverged in size after leaving mother’s mouth, exhibiting smaller size when grown under low DO. Size differences in embryo size across field populations and divergence in embryo size after release from the mother’s mouth support predictions for smaller body size under hypoxia. There was no evidence for negative effects on survival of juveniles after 3 months. Brooding period was 16% shorter in females reared under low DO suggesting that hypoxia may accelerate embryo development. This work provides insights into how bearer fishes respond to hypoxic stress relative to fishes with no post-spawning parental care; a shorter brooding interval and smaller body size may provide an optimal solution to parent and embryo survival under hypoxia in brooding fishes [Current Zoology 58 (3: 401-412, 2012].

  7. A new cichlid fish in the Sahara: The Ounianga Serir lakes (Chad), a biodiversity hotspot in the desert.

    Science.gov (United States)

    Trape, Sébastien

    In the rare perennial bodies of water of the Sahara desert, only a few fish species have survived to increasing aridification since the end of the last humid period at the Holocene, approximately 5000 years BP. Here, I report the occurrence of an undescribed haplochomine cichlid fish in Lake Boukou, one of the seven Ounianga Serir lakes (Chad). These lakes are located in one of the most arid areas of the Sahara desert, but they persist by virtue of subsurface inflow of fresh groundwater from a large fossil aquifer. Astatotilapia tchadensis sp. nov. is characterized by a black bar between eye and corner of mouth, rounded orange spots on anal fin, scales ctenoid, lower limb of first gill arch with 7-8 gill rackers, dorsal fin with 13-14 spines and 9-11 soft rays, anal fin with 3 spines and 8-9 soft rays, 29 or 30 lateral line scales, and lower pharyngeal dentition with enlarged molariform teeth. The new species is easily distinguished from A. desfontainii and A. flaviijosephii, the northernmost haplochromine species currently isolated from its other group members, and appears close to an unnamed species of Lake Chad basin. Ounianga Serir lakes and especially Lake Boukou present a remarkable diversity of fish, the highest known in the Sahara desert with a total of at least six fish species belonging to six genera and three families. They also constitute an exceptional natural landscape inscribed on the UNESCO world heritage list in 2012 and a biodiversity hotspot for desert vertebrate species. Copyright © 2016 Académie des sciences. Published by Elsevier SAS. All rights reserved.

  8. Experimentally increased temperature and hypoxia affect stability of social hierarchy and metabolism of the Amazonian cichlid Apistogramma agassizii.

    Science.gov (United States)

    Kochhann, Daiani; Campos, Derek Felipe; Val, Adalberto Luis

    2015-12-01

    The primary goal of this study was to understand how changes in temperature and oxygen could influence social behaviour and aerobic metabolism of the Amazonian dwarf cichlid Apistogramma agassizii. Social hierarchies were established over a period of 96h by observing the social interactions, feeding behaviour and shelter use in groups of four males. In the experimental environment, temperature was increased to 29°C in the high-temperature treatment, and oxygen lowered to 1.0mg·L(-1)O2 in the hypoxia treatment. Fish were maintained at this condition for 96h. The control was maintained at 26°C and 6.6mg·L(-1)O2. After the experimental exposure, metabolism was measured as routine metabolic rate (RMR) and electron transport system (ETS) activity. There was a reduction in hierarchy stability at high-temperature. Aggression changed after environmental changes. Dominant and subdominant fish at high temperatures increased their biting, compared with control-dominant. In contrast, hypoxia-dominant fish decreased their aggressive acts compared with all other fish. Shelter use decreased in control and hypoxic dominant fish. Dominant fish from undisturbed environments eat more than their subordinates. There was a decrease of RMR in fish exposed to the hypoxic environment when compared with control or high-temperature fish, independent of social position. Control-dominant fish had higher RMR than their subordinates. ETS activity increased in fish exposed to high temperatures; however, there was no effect on social rank. Our study reinforces the importance of environmental changes for the maintenance of hierarchies and their characteristics and highlights that most of the changes occur in the dominant position. Copyright © 2015 Elsevier Inc. All rights reserved.

  9. Adolescents Murderers: Abuse and Adversity in Childhood.

    Science.gov (United States)

    Hill-Smith, Andrew J.; Hugo, Pippa; Hughes, Patricia; Fonagy, Peter; Hartman, David

    2002-01-01

    This study examines a group of 21 imprisoned males, convicted of murder whilst aged 18 years or less, and compares them on a range of psychosocial variables to 21 convicted non-violent burglars. Results showed that lower socio-economic status, harsh parenting, and exclusion from school were significantly more common for murderers. Confirms that…

  10. Similar levels of diversity and population Structure in superflock and ...

    African Journals Online (AJOL)

    superflock cichlid fishes from Lake Victoria, Africa. ... Tropical Freshwater Biology ... We use DNA microsatellite loci to estimate neutral genetic diversity and the level of gene flow among populations of two cichlid species from southern Lake Victoria, ...

  11. From molecule to behavior: Brain aromatase (cyp19a1b) characterization, expression analysis and its relation with social status and male agonistic behavior in a Neotropical cichlid fish.

    Science.gov (United States)

    Ramallo, Martín R; Morandini, Leonel; Birba, Agustina; Somoza, Gustavo M; Pandolfi, Matías

    2017-03-01

    The enzyme aromatase, responsible for the conversion of C19 androgens to C18 estrogens, exists as two paralogue copies in teleost fish: Cyp19a1a mostly expressed in the gonads, referred as gonadal aromatase, and Cyp19a1b, mostly expressed in the brain, accordingly known as brain aromatase. The neural localization of Cyp19a1b is greatly contained within the social behavior network and mesolimbic reward system in fish, suggesting a strong role of estrogen synthesis in the regulation of social behavior. In this work we aimed to analyze the variation in cyp19a1b expression in brain and pituitary of males of a highly social cichlid, Cichlasoma dimerus (locally known as chanchita), and its relation with inter-individual variability in agonistic behavior in a communal social environment. We first characterized chanchita's cyp19a1b mRNA and deduced amino acid sequence, which showed a high degree of conservation when compared to other teleost brain aromatase sequences, and its tissue expression patterns. Within the brain, Cyp19a1b was solely detected at putative radial glial cells of the forebrain, close to the brain ventricles. We then studied the relative expression levels of cyp19a1b by Real Time PCR in the brain and pituitary of males of different social status, territorial vs. non-territorial, and its relationship with an index of agonistic behavior. We found that even though, brain aromatase expression did not differ between types of males, pituitary cyp19a1b expression levels positively correlated with the index of agonistic behavior. This suggests a novel role of the pituitary in the regulation of social behavior by local estrogen synthesis. Copyright © 2017 Elsevier Inc. All rights reserved.

  12. NON - OPERATIVE TREATMENT OF NON - CAVITATED APPROXIMAL CARIOUS LESIONS OF PERMANENT CHIDREN’S TEETH.

    Directory of Open Access Journals (Sweden)

    Rossiza I. Kabakchieva

    2014-10-01

    Full Text Available Aim: To apply and follow up in clinical conditions the success rate of microinvasive technique of infiltration with low viscosity resin ICON® (DMG of non cavitated approximal caries lesions of permanent children's teeth for a period of one year. Material and methods: The study included 18 children aged 7-16 years. They were divided into two groups - children with medium and high caries risk. The survey include 20 teeth with approximal non-cavitated enamel lesions up to the outer third of dentin (E1, E2, D1 – according to the manufacturer’s instructions of ICON®. The size of the lesions was determined using bitewing radiographs and the activity - by Papilla Bleeding Index. The clinical application of the infiltr+ant (ICON® Caries Infiltrant Proximal, DMG was conducted according to the manufacturer's instructions. Bitewing radiographs were made at 6 and 12 months after infiltration in order to evaluate the success of the method. A test of the difference between two relative proportions and alternative test for analysis of the results were used. Results: Our study confirm the hypothesis that this method of infiltration is equally successful for permanent teeth in patients with moderate caries risk as well as those at high caries risk. Conclusion: This study is the first survey regarding the success of the application of ICON® for treatment of non-cavitated approximal carious lesions in permanent dentition of children in the country. Research in this direction should continue in order to increase the conviction that caries can be controlled and arrested in its earliest stages.

  13. Complete and rapid reversal of the body color pattern in juveniles of the convict surgeonfish Acanthurus triostegus at Moorea Island (French Polynesia)

    Science.gov (United States)

    Besson, Marc; Salis, Pauline; Laudet, Vincent; Lecchini, David

    2018-03-01

    Color polymorphism is widespread in animals and can be associated with temporary adjustments to environmental variables (phenotypic plasticity). In teleost fishes, one of the most remarkable examples of color plasticity is background adaptation in flatfishes. However, such rapid and complete changes in body color and pattern remain relatively unreported in other species. The convict surgeonfish Acanthurus triostegus is a gregarious species whose body color pattern consists of black vertical bars on a whitish body. Here, we describe an entirely reverse body color pattern (white vertical bars on a blackish body) that we observed in some A. triostegus juveniles in a nursery area at Moorea Island, French Polynesia. In aquaria, we determined that change from one color pattern to the other is rapid, reversible, and corresponds to phenotypic plasticity associated with aggressive behavior.

  14. Lateralized Feeding Behavior is Associated with Asymmetrical Neuroanatomy and Lateralized Gene Expressions in the Brain in Scale-Eating Cichlid Fish

    Science.gov (United States)

    Lee, Hyuk Je; Schneider, Ralf F; Manousaki, Tereza; Kang, Ji Hyoun; Lein, Etienne; Franchini, Paolo

    2017-01-01

    Abstract Lateralized behavior (“handedness”) is unusual, but consistently found across diverse animal lineages, including humans. It is thought to reflect brain anatomical and/or functional asymmetries, but its neuro-molecular mechanisms remain largely unknown. Lake Tanganyika scale-eating cichlid fish, Perissodus microlepis show pronounced asymmetry in their jaw morphology as well as handedness in feeding behavior—biting scales preferentially only from one or the other side of their victims. This makes them an ideal model in which to investigate potential laterality in neuroanatomy and transcription in the brain in relation to behavioral handedness. After determining behavioral handedness in P. microlepis (preferred attack side), we estimated the volume of the hemispheres of brain regions and captured their gene expression profiles. Our analyses revealed that the degree of behavioral handedness is mirrored at the level of neuroanatomical asymmetry, particularly in the tectum opticum. Transcriptome analyses showed that different brain regions (tectum opticum, telencephalon, hypothalamus, and cerebellum) display distinct expression patterns, potentially reflecting their developmental interrelationships. For numerous genes in each brain region, their extent of expression differences between hemispheres was found to be correlated with the degree of behavioral lateralization. Interestingly, the tectum opticum and telencephalon showed divergent biases on the direction of up- or down-regulation of the laterality candidate genes (e.g., grm2) in the hemispheres, highlighting the connection of handedness with gene expression profiles and the different roles of these brain regions. Hence, handedness in predation behavior may be caused by asymmetric size of brain hemispheres and also by lateralized gene expressions in the brain. PMID:29069363

  15. Neuropeptide Y in the forebrain of the adult male cichlid fish Oreochromis mossambicus: distribution, effects of castration and testosterone replacement.

    Science.gov (United States)

    Sakharkar, Amul J; Singru, Praful S; Sarkar, Koustav; Subhedar, Nishikant K

    2005-08-22

    We studied the organization of the neuropeptide Y (NPY)-immunoreactive system in the forebrain of adult male cichlid fish Oreochromis mossambicus and its response to castration and testosterone replacement by using morphometric methods. Immunoreactivity for NPY was widely distributed in the forebrain, and the pattern generally resembled that in other teleosts. Whereas immunoreactivity was conspicuous in the ganglia of nervus terminalis (NT; or nucleus olfactoretinalis), a weak reaction was detected in some granule cells in the olfactory bulb and in the cells of area ventralis telencephali pars lateralis (Vl). Moderately to intensely immunoreactive cells were distinctly seen in the nucleus entopeduncularis (NE), nucleus preopticus (NPO), nucleus lateralis tuberis (NLT), paraventricular organ (PVO), and midbrain tegmentum (MT). NPY fibers were widely distributed in the forebrain. Castration for 10/15 days resulted in a drastic loss of immunoreactivity in the cells of NE (P<0.001) and a significant decrease (P<0.01) in their cell nuclear size. However, cell nuclei of the NT neurons showed a significant increase in size. A highly significant reduction in the NPY-immunoreactive fiber density (P<0.001) was observed in several areas of the forebrain. Although testosterone replacement reversed these changes, fibers in some areas showed supranormal responses. Immunoreactive cells in Vl, NPO, NLT, PVO, and MT and fiber density in some other areas did not respond to castration. We suggest that the NPY-immunoreactive elements that respond to castration and testosterone replacement may serve as the substrate for processing the positive feedback action of the steroid hormone. (c) 2005 Wiley-Liss, Inc.

  16. Redescription of Neoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado, 1978 (Acanthocephala: Neoechinorhynchidae) and description of a new species from freshwater cichlids (Teleostei: Cichlidae) in Mexico.

    Science.gov (United States)

    Salgado-Maldonado, Guillermo

    2013-05-01

    A redescription of Neoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado (An Inst Biol Univ Nal Autón Méx, Ser Zool 49:35-47, 1978) is presented, based on adult specimens collected from the type host Paraneetroplus fenestratus from the type location, the Lago de Catemaco lake, Veracruz state, Mexico, and its presence is recorded in other cichlids. Detailed studies of N. (N.) golvani using light microscopy revealed some taxonomically important, previously unreported features, such as the size and shape of fully developed adult males and females, and the structure of the eggs. Morphological variability in N. (N.) golvani is described. Based on these data, the geographic distribution of this species is documented. Neoechinorhynchus (Neoechinorhynchus) panucensis n. sp. is described from Herichthys labridens (Pellegrin), Amatitlania nigrofasciata (Günther), and Herichthys cyanoguttatus Baird and Girard (all of them Cichlidae), collected in the Río Atlapexco, a tributary to the upper Río Panuco basin, Hidalgo State, Mexico. This new species stand up alone because of its minute proboscis (♂ 50 × 60, ♀ 42-55 (48.5) × 48-63 (57.7)) and anterior hooks (♂ 27-30 (28.8) × 3-5 (4), ♀ 28-32 (30) × 5 (5)). A key to the species of Neoechinorhynchus recorded from freshwater fishes in Central and South America is included.

  17. Adult-onset offenders: Is a tailored theory warranted?

    Science.gov (United States)

    Beckley, Amber L.; Caspi, Avshalom; Harrington, Honalee; Houts, Renate M.; Mcgee, Tara Renae; Morgan, Nick; Schroeder, Felix; Ramrakha, Sandhya; Poulton, Richie; Moffitt, Terrie E.

    2016-01-01

    Purpose To describe official adult-onset offenders, investigate their antisocial histories and test hypotheses about their origins. Methods We defined adult-onset offenders among 931 Dunedin Study members followed to age 38, using criminal-court conviction records. Results Official adult-onset offenders were 14% of men, and 32% of convicted men, but accounted for only 15% of convictions. As anticipated by developmental theories emphasizing early-life influences on crime, adult-onset offenders’ histories of antisocial behavior spanned back to childhood. Relative to juvenile-offenders, during adolescence they had fewer delinquent peers and were more socially inhibited, which may have protected them from conviction. As anticipated by theories emphasizing the importance of situational influences on offending, adult-onset offenders, relative to non-offenders, during adulthood more often had schizophrenia, bipolar disorder, and alcohol-dependence, had weaker social bonds, anticipated fewer informal sanctions, and self-reported more offenses. Contrary to some expectations, adult-onset offenders did not have high IQ or high socioeconomic-status families protecting them from juvenile conviction. Conclusions A tailored theory for adult-onset offenders is unwarranted because few people begin crime de novo as adults. Official adult-onset offenders fall on a continuum of crime and its correlates, between official non-offenders and official juvenile-onset offenders. Existing theories can accommodate adult-onset offenders. PMID:27134318

  18. Volunteering in adolescence and young adulthood crime involvement: a longitudinal analysis from the add health study.

    Science.gov (United States)

    Ranapurwala, Shabbar I; Casteel, Carri; Peek-Asa, Corinne

    2016-12-01

    Experiences in adolescence may have a lasting impact on adulthood. The objective of this study is to evaluate the association between adolescent (12-18 years of age) volunteerism with the incidence of illegal behaviors, arrests, and convictions in adulthood (>18 years of age). We conducted a retrospective cohort study using secondary data from the National Longitudinal Study of Adolescent to Adult Health. Students from grades 7-12 were recruited in 1994-1995 (n = 20,745), and then followed in 2001-2002 (n = 14,322) and in 2008-2009 (n = 12,288). In 2000-2001, participants were retrospectively asked about their volunteering experience from 12 to 18 years of age. Consequently, participants were divided into non-volunteers, self-volunteers, adult-required volunteers, and court-ordered volunteers. Groups were compared for rates of illegal behaviors, arrest, and convictions in adulthood (>18 years of age) using weighted generalized linear mixed negative binomial models while accounting for sampling design. Relative to non-volunteers, self-volunteers reported 11 % fewer illegal behaviors (RR: 0.89, 95 % CI: 0.80, 0.99), 31 % fewer arrests (RR: 0.69, 95 %: 0.57, 0.85), and 39 % fewer convictions (RR: 0.61, 95 % CI: 0.47, 0.79) by age 18-28 years, and 28 % fewer illegal behaviors, 53 % fewer arrests, and 36 % fewer convictions by age 24-34. In comparison the adult-required volunteers also reported fewer arrests and convictions; however, they reported more illegal behaviors than the non-volunteers. The court-ordered volunteers reported higher rates of criminal involvement than the non-volunteers, throughout. This study suggests that volunteering in adolescence may reduce crime involvement in adulthood.

  19. Taking cognizance of mental illness in schizophrenics and its association with crime and substance-related diagnoses

    DEFF Research Database (Denmark)

    Munkner, R; Haastrup, S; Jørgensen, T

    2003-01-01

    with schizophrenia born after November 1, 1963, data on criminality, substance-related diagnoses and contacts with the psychiatric hospital system were analysed. RESULTS: Compared with the non-convicted schizophrenics the convicted were older on first contact with the psychiatric hospital system and older when...... are aware of possible psychotic symptoms in criminal and abusing individuals to enable earlier detection and treatment....

  20. Predator avoidance in extremophile fish.

    Science.gov (United States)

    Bierbach, David; Schulte, Matthias; Herrmann, Nina; Zimmer, Claudia; Arias-Rodriguez, Lenin; Indy, Jeane Rimber; Riesch, Rüdiger; Plath, Martin

    2013-02-06

    Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P. sulphuraria that either live in hydrogen sulfide-rich (sulfidic) springs or cave habitats, both of which are known to have impoverished piscine predator regimes. Focal fishes that inhabited sulfidic springs showed slightly weaker avoidance reactions when presented with several naturally occurring predatory cichlids, but strongest differences to populations from non-sulfidic habitats were found in a decreased shoaling tendency with non-predatory swordtail (Xiphophorus hellerii) females. When comparing avoidance reactions between P. mexicana from a sulfidic cave (Cueva del Azufre) and the adjacent sulfidic surface creek (El Azufre), we found only slight differences in predator avoidance, but surface fish reacted much more strongly to the non-predatory cichlid Vieja bifasciata. Our third experiment was designed to disentangle learned from innate effects of predator recognition. We compared laboratory-reared (i.e., predator-naïve) and wild-caught (i.e., predator-experienced) individuals of P. mexicana from a non-sulfidic river and found no differences in their reaction towards the presented predators. Overall, our results indicate (1) that predator avoidance is still functional in extremophile Poecilia spp. and (2) that predator recognition and avoidance reactions have a strong genetic basis.

  1. Predator Avoidance in Extremophile Fish

    Science.gov (United States)

    Bierbach, David; Schulte, Matthias; Herrmann, Nina; Zimmer, Claudia; Arias-Rodriguez, Lenin; Indy, Jeane Rimber; Riesch, Rüdiger; Plath, Martin

    2013-01-01

    Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P. sulphuraria that either live in hydrogen sulfide-rich (sulfidic) springs or cave habitats, both of which are known to have impoverished piscine predator regimes. Focal fishes that inhabited sulfidic springs showed slightly weaker avoidance reactions when presented with several naturally occurring predatory cichlids, but strongest differences to populations from non-sulfidic habitats were found in a decreased shoaling tendency with non-predatory swordtail (Xiphophorus hellerii) females. When comparing avoidance reactions between P. mexicana from a sulfidic cave (Cueva del Azufre) and the adjacent sulfidic surface creek (El Azufre), we found only slight differences in predator avoidance, but surface fish reacted much more strongly to the non-predatory cichlid Vieja bifasciata. Our third experiment was designed to disentangle learned from innate effects of predator recognition. We compared laboratory-reared (i.e., predator-naïve) and wild-caught (i.e., predator-experienced) individuals of P. mexicana from a non-sulfidic river and found no differences in their reaction towards the presented predators. Overall, our results indicate (1) that predator avoidance is still functional in extremophile Poecilia spp. and (2) that predator recognition and avoidance reactions have a strong genetic basis. PMID:25371337

  2. Short- and long-term effects of imprisonment on future felony convictions and prison admissions.

    Science.gov (United States)

    Harding, David J; Morenoff, Jeffrey D; Nguyen, Anh P; Bushway, Shawn D

    2017-10-17

    A substantial contributor to prison admissions is the return of individuals recently released from prison, which has come to be known as prison's "revolving door." However, it is unclear whether being sentenced to prison itself has a causal effect on the probability of a subsequent return to prison or on criminal behavior. To examine the causal effect of being sentenced to prison on subsequent offending and reimprisonment, we leverage a natural experiment using the random assignment of judges with different propensities for sentencing offenders to prison. Drawing on data on all individuals sentenced for a felony in Michigan between 2003 and 2006, we compare individuals sentenced to prison to those sentenced to probation, taking into account sentence lengths and stratifying our analysis by race. Results show that being sentenced to prison rather than probation increases the probability of imprisonment in the first 3 years after release from prison by 18 percentage points among nonwhites and 19 percentage points among whites. Further results show that such effects are driven primarily by imprisonment for technical violations of community supervision rather than new felony convictions. This suggests that more stringent postprison parole supervision (relative to probation supervision) increases imprisonment through the detection and punishment of low-level offending or violation behavior. Such behavior would not otherwise result in imprisonment for someone who had not already been to prison or who was not on parole. These results demonstrate that the revolving door of prison is in part an effect of the nature of postprison supervision.

  3. Preliminary gut content and dentition analysis reveal subtle resource ...

    African Journals Online (AJOL)

    The trophic relationships between six haplochromine cichlids of Lake Kanyaboli, a satellite lake of Lake Victoria that has not been infested by the Nile perch (Lates niloticus), were studied as a first step towards understanding the cichlid community structure in this threatened wetland ecosystem. Coefficient of similarity ...

  4. Lateralized Feeding Behavior is Associated with Asymmetrical Neuroanatomy and Lateralized Gene Expressions in the Brain in Scale-Eating Cichlid Fish.

    Science.gov (United States)

    Lee, Hyuk Je; Schneider, Ralf F; Manousaki, Tereza; Kang, Ji Hyoun; Lein, Etienne; Franchini, Paolo; Meyer, Axel

    2017-11-01

    Lateralized behavior ("handedness") is unusual, but consistently found across diverse animal lineages, including humans. It is thought to reflect brain anatomical and/or functional asymmetries, but its neuro-molecular mechanisms remain largely unknown. Lake Tanganyika scale-eating cichlid fish, Perissodus microlepis show pronounced asymmetry in their jaw morphology as well as handedness in feeding behavior-biting scales preferentially only from one or the other side of their victims. This makes them an ideal model in which to investigate potential laterality in neuroanatomy and transcription in the brain in relation to behavioral handedness. After determining behavioral handedness in P. microlepis (preferred attack side), we estimated the volume of the hemispheres of brain regions and captured their gene expression profiles. Our analyses revealed that the degree of behavioral handedness is mirrored at the level of neuroanatomical asymmetry, particularly in the tectum opticum. Transcriptome analyses showed that different brain regions (tectum opticum, telencephalon, hypothalamus, and cerebellum) display distinct expression patterns, potentially reflecting their developmental interrelationships. For numerous genes in each brain region, their extent of expression differences between hemispheres was found to be correlated with the degree of behavioral lateralization. Interestingly, the tectum opticum and telencephalon showed divergent biases on the direction of up- or down-regulation of the laterality candidate genes (e.g., grm2) in the hemispheres, highlighting the connection of handedness with gene expression profiles and the different roles of these brain regions. Hence, handedness in predation behavior may be caused by asymmetric size of brain hemispheres and also by lateralized gene expressions in the brain. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

  5. Evolutionary relationships in the sand-dwelling cichlid lineage of lake tanganyika suggest multiple colonization of rocky habitats and convergent origin of biparental mouthbrooding.

    Science.gov (United States)

    Koblmüller, Stephan; Salzburger, Walter; Sturmbauer, Christian

    2004-01-01

    The cichlid species flock of Lake Tanganyika is comprised of seven seeding lineages that evolved in step with changes of the lake environment. One seeding lineage diversified into at least six lineages within a short period of time. Our study focuses on the diversification of one of these lineages, the Ectodini, comprising highly specialized, sand- and rock-dwelling species. They display two distinct breeding styles: maternal and biparental mouthbrooding. By analyzing three mtDNA gene segments in 30 species representing all 13 described genera, we show that the Ectodini rapidly diversified into four clades at the onset of their radiation. The monotypic genus Grammatotria is likely to represent the most ancestral split, followed by the almost contemporary origin of three additional clades, the first comprising the benthic genus Callochromis, the second comprising the benthic genera Asprotilapia, Xenotilapia, Enantiopus, and Microdontochromis, and the third comprising the semi-pelagic genera Ophthalmotilapia, Cardiopharynx, Cyathopharynx, Ectodus, Aulonocranus, Lestradea, and Cunningtonia. Our study confirms the benthic and sand-dwelling life-style as ancestral. Rocky habitats were colonized independently in the Xenotilapia- and Ophthalmotilapia-clade. The Xenotilapia-clade comprises both maternal and biparental mouthbrooders. Their mode of breeding appears to be highly plastic: biparental mouthbrooding either evolved once in the common ancestor of the clade, to be reverted at least three times, or evolved at least five times independently from a maternally mouthbrooding ancestor. Furthermore, the genera Xenotilapia, Microdontochromis, Lestradea, and Ophthalmotilapia appeared paraphyletic in our analyses, suggesting the need of taxonomic revision.

  6. The effect of inmates' self-reported childhood and adolescent animal cruelty: motivations on the number of convictions for adult violent interpersonal crimes.

    Science.gov (United States)

    Hensley, Christopher; Tallichet, Suzanne E

    2008-04-01

    Few researchers have investigated the potentially predictive power of motives for childhood and adolescent animal cruelty as it is associated with interpersonal violence in adulthood. Based on a sample of 261 inmates at medium- and maximum-security prisons in a southern state, the present study examines the relationship among several retrospectively reported motives (anger, fun, dislike, and imitation) for animal cruelty and violent crime convictions (assault, rape, and murder). Almost half reported abusing animals out of anger, whereas more than one third did so for fun. Dislike for the animal and imitation were less frequently occurring motives. Participants who abused animals at an earlier age and those who did so out of anger or for fun were more likely to repeat the offense. Regression analyses revealed that abusing an animal out of fun in their youth was the most statistically salient motive for predicting later interpersonal violence as adults.

  7. Correlates of admitted sexual interest in children among individuals convicted of child pornography offenses.

    Science.gov (United States)

    Seto, Michael C; Eke, Angela W

    2017-06-01

    Recent research on a risk assessment tool for child pornography offending suggests that admission of sexual interest in children is a risk factor for any sexual recidivism. Admission is easily vulnerable to lying, however, or to refusals to respond when asked about sexual interests. This may become a particular issue when individuals are concerned about the potential impact of admission of sexual interest on sentencing and other risk-related decisions. In this study, we identified the following behavioral correlates (coded yes/no) of admission of sexual interest in children in the risk tool development sample of 286 men convicted of child pornography offenses: (a) never married (54% of sample), (b) child pornography content included child sexual abuse videos (64%), (c) child pornography content included sex stories involving children (31%), (d) evidence of interest in child pornography spanned 2 or more years (55%), (e) volunteered in a role with high access to children (7%), and (f) engaged in online sexual communication with a minor or officer posing as a minor (10%). When summed, the average score on this Correlates of Admission of Sexual Interest in Children (CASIC) measure was 2.21 (SD = 1.22, range 0-6) out of a possible 6, and the CASIC score was significantly associated with admission of sexual interest in children, area under the curve (AUC) = .71, 95% CI [ .65, .77]. The CASIC had a stronger relationship with admission in a small cross-validation sample of 60 child pornography offenders, AUC = .81, 95% CI [.68, .95]. CASIC scores may substitute for admission of sexual interest in risk assessment involving those with child pornography offenses. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  8. OVER CAPACITY NARAPIDANA DI LEMBAGA PEMASYARAKATAN, FAKTOR PENYEBAB, IMPLIKASI NEGATIF, SERTA SOLUSI DALAM UPAYA OPTIMALISASI PEMBINAAN NARAPIDANA

    Directory of Open Access Journals (Sweden)

    Angkasa Angkasa

    2010-09-01

    Full Text Available Overcapacity happened because growth rate dweller of ill assorted prison with dwelling medium of prison. Besides seems there are some other impeller factors to the happening of the paradigm overcapacity or law factors of itself which tend to oriented institutional crime (prison. Overcapacity tend to to have negative implication to some matters for example the lowering of security storey;level / observation and also the happening of prisonization. Solution of overcapacity convict in prison in the effort optimalization construction of convict in the effort optimalization construction of convict for example with a few actions having the character of non-institutional in the form of conditional crime, probation, suspended, compensation, restitution and also usage of restorative justice.

  9. A national Swedish longitudinal twin-sibling study of criminal convictions from adolescence through early adulthood.

    Science.gov (United States)

    Kendler, Kenneth S; Lönn, Sara Larsson; Maes, Hermine H; Morris, Nancy A; Lichtenstein, Paul; Sundquist, Jan; Sundquist, Kristina

    2015-06-01

    Prior twin and adoption studies have demonstrated the importance of both genetic and shared environmental factors in the etiology of criminal behavior (CB). However, despite substantial interest in life-course theories of CB, few genetically informative studies have examined CB in a developmental context. In 69,767 male-male twin pairs and full-sibling pairs with ≤ 2 years' difference in age, born 1958-1976 and ascertained from the Swedish Twin and Population Registries, we obtained information on all criminal convictions from 1973 to 2011 from the Swedish Crime Register. We fitted a Cholesky structural model, using the OpenMx package, to CB in these pairs over three age periods: 15-19, 20-24, and 25-29. The Cholesky model had two main genetic factors. The first began at ages 15-19 and declined in importance over development. The second started at ages 20-24 and was stable over time. Only one major shared environmental factor was seen, beginning at ages 15-19. Heritability for CB declined from ages 15-29, as did shared environmental effects, although at a slower rate. Genetic risk factors for CB in males are developmentally dynamic, demonstrating both innovation and attenuation. These results are consistent with theories of adolescent-limited and life-course persistent CB subtypes. Heritability for CB did not increase over time as might be predicted from active gene-environmental correlation. However, consistent with expectation, the proportion of variability explained by shared environmental effects declined slightly as individuals aged and moved away from their original homes and neighborhoods.

  10. Indagação e convicção: fronteiras entre a ciência e a ideologia Inquiry and conviction: frontiers between science and ideology

    Directory of Open Access Journals (Sweden)

    Zaia Brandão

    2010-12-01

    Full Text Available Ensaio em que se defende a necessidade de o pesquisador estar atento para as diferenças entre a indagação e a convicção. Ciência e ideologia situam-se em domínios distintos - o da indagação e o da convicção - o da produção do conhecimento e o da ação política. No âmbito das Ciências Sociais e Humanas, as fronteiras entre esses dois planos são frequentemente problematizadas, seja para negar, seja para afirmar a sua pertinência. Admitindo as dificuldades de traçar essas fronteiras, o ensaio defende a procedência de se procurar preservar o distanciamento entre os dois âmbitos. No campo científico, a curiosidade e a indagação, o escrutínio racional da realidade são os móveis legítimos do ofício. Após indicar algumas questões derivadas do trânsito entre ideologia e ciência na pesquisa em educação, finaliza indicando problemas que decorrem das políticas acadêmicasThis essay defends the researcher's need to be attentive to the differences between inquiry and conviction. Science and ideology are situated in different domains - those of inquiry (production of knowledge and those of conviction (political action. In the Social and Human Sciences the frontiers between these two planes are frequently questioned, either by denying them or by affirming them. Assuming the difficulty in drawing these frontiers, this essay defends the need to preserve the distance between the two domains. In the scientific field, curiosity and inquiry - the rational scrutiny of reality - are the researcher's legitimate motive. After indicating some questions that result from the transit between ideology and science in educational research, the essay ends by indicating problems that derive from present academic policies

  11. Comunidad de parásitos metazoarios de la charra Cichlasoma trimaculatum en la laguna de Tres Palos, Guerrero, México Metazoan parasite community in the three-spot cichlid Cichlasoma trimaculatum from Tres Palos Lagoon, Guerrero, Mexico

    Directory of Open Access Journals (Sweden)

    Juan Violante-González

    2008-12-01

    Full Text Available Entre abril de 2000 y noviembre de 2002 se examinó la composición de la comunidad de parásitos metazoarios de la charra, Cichlasoma trimaculatum a partir de muestras temporales. Fueron recuperadas 12 especies de parásitos (40 969 individuos de 231 hospederos examinados; 10 helmintos: Ascocotyle (Phagicola longa, Austrodiplostomum compactum, Cladocystis trifolium, Clinostomum complanatum, Crassicutis cichlasomae, Posthodiplostomum minimum, Pseudoacanthostomum panamense, Neoechinorhynchus golvani, Southwellina hispida y Contracaecum sp., y 2 crustáceos: Argulus sp. y Ergasilus sp. La comunidad se caracterizó por un número mayor de parásitos generalistas y pocos especialistas de cíclidos, además por ser pobre en especies. De las 5 especies comunes dentro de la comunidad, 4 presentaron variación temporal en su dinámica de infección a lo largo del tiempo, la cual fue asociada con cambios ambientales generados durante las temporadas de secas y lluvias. La variación en la dinámica de infección de las especies comunes fue capaz de generar cambios en la estructura, tanto en el nivel de componente como en el de infracomunidad; sin embargo, no se observó un patrón claro, lo que indica que la comunidad puede ser poco predecible, como se sugiere para otras comunidades de parásitos de peces dulceacuícolas.We analyzed metazoan parasite community composition in the three-spot cichlid Cichlasoma trimaculatum using seasonal samples taken between April 2000 and November 2002 from the Tres Palos Lagoon, Guerrero, Mexico. A total of 231 hosts were examined. Of the 12 parasite species recovered (40,969 individuals, 10 were helminths: Ascocotyle (Phagicola longa, Austrodiplostomum compactum, Cladocystis trifolium, Clinostomum complanatum, Crassicutis cichlasomae, Posthodiplostomum minimum, Pseudoacanthostomum panamense, Neoechinorhynchus golvani, Southwellina hispida, and Contracaecum sp. The remaining 2 were the crustaceans Argulus sp. and

  12. Selection towards different adaptive optima drove the early diversification of locomotor phenotypes in the radiation of Neotropical geophagine cichlids.

    Science.gov (United States)

    Astudillo-Clavijo, Viviana; Arbour, Jessica H; López-Fernández, Hernán

    2015-05-01

    Simpson envisaged a conceptual model of adaptive radiation in which lineages diversify into "adaptive zones" within a macroevolutionary adaptive landscape. However, only a handful of studies have empirically investigated this adaptive landscape and its consequences for our interpretation of the underlying mechanisms of phenotypic evolution. In fish radiations the evolution of locomotor phenotypes may represent an important dimension of ecomorphological diversification given the implications of locomotion for feeding and habitat use. Neotropical geophagine cichlids represent a newly identified adaptive radiation and provide a useful system for studying patterns of locomotor diversification and the implications of selective constraints on phenotypic divergence in general. We use multivariate ordination, models of phenotypic evolution and posterior predictive approaches to investigate the macroevolutionary adaptive landscape and test for evidence of early divergence of locomotor phenotypes in Geophagini. The evolution of locomotor phenotypes was characterized by selection towards at least two distinct adaptive peaks and the early divergence of modern morphological disparity. One adaptive peak included the benthic and epibenthic invertivores and was characterized by fishes with deep, laterally compressed bodies that optimize precise, slow-swimming manoeuvres. The second adaptive peak resulted from a shift in adaptive optima in the species-rich ram-feeding/rheophilic Crenicichla-Teleocichla clade and was characterized by species with streamlined bodies that optimize fast starts and rapid manoeuvres. Evolutionary models and posterior predictive approaches favoured an early shift to a new adaptive peak over decreasing rates of evolution as the underlying process driving the early divergence of locomotor phenotypes. The influence of multiple adaptive peaks on the divergence of locomotor phenotypes in Geophagini is compatible with the expectations of an ecologically driven

  13. The third review conference of the parties to the Treaty on the non-proliferation of nuclear weapons

    International Nuclear Information System (INIS)

    1985-01-01

    The Third Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons was held in Geneva from 27 August to 21 September 1985, with a view to assuring that the purposes and provisions of the Treaty were being realized. The Conference ended with the adoption by consensus of a Final Declaration, by which the States parties, among other things, solemnly declared their conviction that the Treaty was essential to international peace and security and expressed their support for its objectives. This Fact Sheet provides information on the preparations for the Conference, developments at the Conference and the main features of the Final Declaration. Te text of the Treaty is reproduced in Disarmament Fact Sheet No. 33, and its historical background is contained in Fact Sheet No. 41

  14. A test of genetic association among male nuptial coloration, female mating preference, and male aggression bias within a polymorphic population of cichlid fish

    Directory of Open Access Journals (Sweden)

    Inke van der SLUIJS, Peter D. DIJKSTRA, Charlotte M. LINDEYER et al.

    2013-04-01

    Full Text Available Both inter- and intrasexual selection have been implicated in the origin and maintenance of species-rich taxa with diverse sexual traits. Simultaneous disruptive selection by female mate choice and male-male competition can, in theory, lead to speciation without geographical isolation if both act on the same male trait. Female mate choice can generate discontinuities in gene flow, while male-male competition can generate negative frequency-dependent selection stabilizing the male trait polymorphism. Speciation may be facilitated when mating preference and/or aggression bias are physically linked to the trait they operate on. We tested for genetic associations among female mating preference, male aggression bias and male coloration in the Lake Victoria cichlid Pundamilia. We crossed females from a phenotypically variable population with males from both extreme ends of the phenotype distribution in the same population (blue or red. Male offspring of a red sire were significantly redder than males of a blue sire, indicating that intra-population variation in male coloration is heritable. We tested mating preferences of female offspring and aggression biases of male offspring using binary choice tests. There was no evidence for associations at the family level between female mating preferences and coloration of sires, but dam identity had a significant effect on female mate preference. Sons of the red sire directed significantly more aggression to red than blue males, whereas sons of the blue sire did not show any bias. There was a positive correlation among individuals between male aggression bias and body coloration, possibly due to pleiotropy or physical linkage, which could facilitate the maintenance of color polymorphism [Current Zoology 59 (2: 221-229, 2013].

  15. Distribution and female reproductive state differences in orexigenic and anorexigenic neurons in the brain of the mouth brooding African cichlid fish, Astatotilapia burtoni.

    Science.gov (United States)

    Porter, Danielle T; Roberts, David A; Maruska, Karen P

    2017-10-01

    Integration of reproduction and metabolism is necessary for species survival. While the neural circuits controlling energy homeostasis are well-characterized, the signals controlling the relay of nutritional information to the reproductive axis are less understood. The cichlid fish Astatotilapia burtoni is ideal for studying the neural regulation of feeding and reproduction because females cycle between a feeding gravid state and a period of forced starvation while they brood developing young inside their mouths. To test the hypothesis that candidate neuropeptide-containing neurons known to be involved in feeding and energy homeostasis in mammals show conserved distribution patterns, we performed immunohistochemistry and in situ hybridization to localize appetite-stimulating (neuropeptide Y, NPY; agouti-related protein, AGRP) and appetite-inhibiting (cocaine and amphetamine-regulated transcript, CART; pro-opiomelanocortin, pomc1a) neurons in the brain. NPY, AGRP, CART, and pomc1a somata showed distribution patterns similar to other teleosts, which included localization to the lateral tuberal nucleus (NLT), the putative homolog of the mammalian arcuate nucleus. Gravid females also had larger NPY and AGRP neurons in the NLT compared to brooding females, but brooding females had larger pomc1a neurons compared to gravid females. Hypothalamic agrp mRNA levels were also higher in gravid compared to brooding females. Thus, larger appetite-stimulating neurons (NPY, AGRP) likely promote feeding while females are gravid, while larger pomc1a neurons may act as a signal to inhibit food intake during mouth brooding. Collectively, our data suggest a potential role for NPY, AGRP, POMC, and CART in regulating energetic status in A. burtoni females during varying metabolic and reproductive demands. © 2017 Wiley Periodicals, Inc.

  16. How Can Men Convicted of Violence Against Women Feel Moral While Holding Sexist and Violent Attitudes? A Homeostatic Moral Model Based on Self-Deception.

    Science.gov (United States)

    Vecina, María L

    2018-05-01

    A moral model is proposed to understand how men convicted of violence against the partner can feel moral in spite of their past violent behavior and their current violent and sexist attitudes. Because of its appeal to the role of self-deception and its relationship to psychological well-being, it was hypothesized that a rigid conception about what is right and wrong (moral absolutism) is associated with ambivalent outcomes that keep their psychological system in homeostasis. The relationships were specified a priori and tested using path analysis. Several fit indices supported the adequacy of the model and showed that moral absolutism was indirectly related to both psychological well-being and a good moral self-conceptualization through self-deception. At the same time, moral absolutism was related to sexist and violent attitudes and a poor moral self-conceptualization. Future interventions could include strategies to reduce the resistances to change based on the reduction of moral absolutism and self-deception.

  17. Serotonergic outcome, stress and sexual steroid hormones, and growth in a South American cichlid fish fed with an L-tryptophan enriched diet.

    Science.gov (United States)

    Morandini, Leonel; Ramallo, Martín Roberto; Moreira, Renata Guimarães; Höcht, Christian; Somoza, Gustavo Manuel; Silva, Ana; Pandolfi, Matías

    2015-11-01

    Reared animals for edible or ornamental purposes are frequently exposed to high aggression and stressful situations. These factors generally arise from conspecifics in densely breeding conditions. In vertebrates, serotonin (5-HT) has been postulated as a key neuromodulator and neurotransmitter involved in aggression and stress. The essential amino acid L-tryptophan (trp) is crucial for the synthesis of 5-HT, and so, leaves a gateway for indirectly augmenting brain 5-HT levels by means of a trp-enriched diet. The cichlid fish Cichlasoma dimerus, locally known as chanchita, is an autochthonous, potentially ornamental species and a fruitful laboratory model which behavior and reproduction has been studied over the last 15years. It presents complex social hierarchies, and great asymmetries between subordinate and dominant animals in respect to aggression, stress, and reproductive chance. The first aim of this work was to perform a morphological description of chanchita's brain serotonergic system, in both males and females. Then, we evaluated the effects of a trp-supplemented diet, given during 4weeks, on brain serotonergic activity, stress and sexual steroid hormones, and growth in isolated specimens. Results showed that chanchita's brain serotonergic system is composed of several populations of neurons located in three main areas: pretectum, hypothalamus and raphe, with no clear differences between males and females at a morphological level. Animals fed with trp-enriched diets exhibited higher forebrain serotonergic activity and a significant reduction in their relative cortisol levels, with no effects on sexual steroid plasma levels or growth parameters. Thus, this study points to food trp enrichment as a "neurodietary'' method for elevating brain serotonergic activity and decreasing stress, without affecting growth or sex steroid hormone levels. Copyright © 2015 Elsevier Inc. All rights reserved.

  18. Parental and perinatal risk factors for sexual offending in men: a nationwide case-control study.

    Science.gov (United States)

    Babchishin, K M; Seto, M C; Sariaslan, A; Lichtenstein, P; Fazel, S; Långström, N

    2017-01-01

    Prior studies suggest parental and perinatal risk factors are associated with later offending. It remains uncertain, however, if such risk factors are similarly related to sexual offending. We linked socio-demographic, family relations, and perinatal (obtained at birth) data from the nationwide Swedish registers from 1973 to 2009 with information on criminal convictions of cases and control subjects. Male sex offenders (n = 13 773) were matched 1:5 on birth year and county of birth in Sweden to male controls without sexual or non-sexual violent convictions. To examine risk-factor specificity for sexual offending, we also compared male violent, non-sexual offenders (n = 135 953) to controls without sexual or non-sexual violent convictions. Predictors included parental (young maternal or paternal age at son's birth, educational attainment, violent crime, psychiatric disorder, substance misuse, suicide attempt) and perinatal (number of older brothers, low Apgar score, low birth weight, being small for gestational age, congenital malformations, small head size) variables. Conditional logistic regression models found consistent patterns of statistically significant, small to moderate independent associations of parental risk factors with sons' sexual offending and non-sexual violent offending. For perinatal risk factors, patterns varied more; small for gestational age and small head size exhibited similar risk effects for both offence types whereas a higher number of older biological brothers and any congenital malformation were small, independent risk factors only for non-sexual violence. This nationwide study suggests substantial commonalities in parental and perinatal risk factors for the onset of sexual and non-sexual violent offending.

  19. Death penalty support for special offender populations of legally convicted murderers: juveniles, the mentally retarded, and the mentally incompetent.

    Science.gov (United States)

    Boots, Denise Paquette; Heide, Kathleen M; Cochran, John K

    2004-01-01

    The U.S. Supreme Court recently re-examined the constitutionality of the death penalty in the context of two of three special offender populations of murderers (juveniles, mentally retarded, and mentally incompetent). The Court reaffirmed the imposition of the death penalty for juveniles 16 and 17, while reversing itself on the mentally retarded. In reaching its decision, the Court relied on society's "evolving standards of decency." Using Likert-type items, this study is the first to have prospective jurors assess support for the death penalty for these specific offender groups. The public's support for the execution of each of the groups is then compared with existing case law. Descriptive statistics and regression analyses indicate that, as expected, the levels of support for the applicability of capital punishment to the various special offender populations are much lower than that for the general adult offender. Moreover, these findings are congruent with the holdings of the Court with one notable exception: a slight majority of respondents supported executing the mentally incompetent. Reasons for the public's apparent departure from the Supreme Court holding prohibiting the execution of mentally incompetent convicted murderers are discussed. The Court's continued role in protecting marginalized populations from "cruel and unusual punishment" is explored in the context of strong public sentiment demanding justice and finality despite changes in offenders' mental capacity. Copyright 2003 John Wiley & Sons, Ltd.

  20. TEORÍA Y PRACTICA DE LA ACCIÓN DE REVISION EN EL NUEVO CÓDIGO PROCESAL PENAL, CAUSAL LETRA D DEL ARTÍCULO 473 THEORY AND PRACTICE OF WRONGFUL CONVICTION CLAIM IN THE NEW CÓDIGO PROCESAL PENAL, PROVISION LETTER D ARTICLE 473

    Directory of Open Access Journals (Sweden)

    José Manuel Fernández Ruiz

    2009-01-01

    Full Text Available El artículo analiza la revisión de las sentencias condenatorias firmes, restringiéndose principalmente a la causal letra d del artículo 473 del Código Procesal Penal. Sobre la base tanto de un estudio conceptual relativo a la regulación legal vigente, como empírico a la luz de la aplicación de la disposición que se comenta, los autores dan cuenta de dos tipos generales de problemas: de diseño legislativo y de interpretación jurisprudencial. Se destaca la necesidad de diferenciar adecuadamente los requisitos que hacen procedente la acción de revisión, proponiéndose cual debe ser la interpretación correcta.The article analyzes the wrongful conviction claim, primarily the provision letter d article 473 of the Chilean Code of Criminal Procedure. On the basis of a conceptual study concerning the current legal regulation, and a empirical study in light of the application of the provision discussed, the authors account for two general kinds of problems: of legislative design and judicial interpretation. It stresses the need to properly differentiate the requirements of the wrongful conviction procedure, proposing an interpretation that should be deemed correct.

  1. Flexibilidade mental na resolução de problemas em indivíduos que cumprem pena por homicídio qualificado Problem-solving mental flexibility in individuals who were convicted for murder

    Directory of Open Access Journals (Sweden)

    Viviane Del Pino

    2008-01-01

    Full Text Available Este estudo teve como objetivo avaliar a flexibilidade mental na resolução de problemas em indivíduos que cumprem pena por homicídio qualificado em penitenciária de média segurança na região metropolitana de Porto Alegre. O estudo foi quantitativo de tipo transversal. A amostra (n=60 foi localizada por conveniência, contou com 30 indivíduos homicidas pareados quanto a sexo, idade, escolaridade e classe social com 30 sujeitos sem antecedentes criminais. Os instrumentos utilizados foram: Teste Wisconsin de Classificação de Cartas - WCST, Teste Stroop de Cores e Palavras, os subtestes Cubos, Códigos e Vocabulário do WAIS-III, a Mini-International Psychiatric Interview e uma ficha de dados sócio-demográficos. Nas categorias do WCST e no Teste Stroop o grupo de homicidas apresentou escores inferiores ao grupo controle com diferença estatisticamente significativa (pThis study aimed at assessing problem-solving mental flexibility in individuals who were convicted for qualified murder, and confined in a medium-security prison within the Metropolitan Area of Porto Alegre, Brazil. The quantitative cross-research study had a convenience sample (n=60 including 30 homicides, paired by gender, age, schooling and social class to 30 individuals who had no criminal records. Assessment instruments used were Wisconsin Card Sorting Test; Stroop Color and Word Test, WAIS-III Block Design, Digit-Symbol Coding and Vocabulary subtests, a Mini-International Psychiatric Interview and a socio-demographic datasheet. In the WCST categories and in the Stroop Test, the group of homicides showed lower scores than the control group with a statistically significant difference (p<0,05. It is concluded that individuals convicted for qualified murder show lower problem-solving flexibility, than the individuals having no criminal records.

  2. The reconstruction of revocation againts the rights to vote or to be voted in public post for those who are found guilty in corruption case in Indonesia from a progressive legal perspective

    Science.gov (United States)

    Tinambunan, HSR.; Widodo, H.; Ahmad, GA.

    2018-01-01

    Revocation of the right to vote and elected in public office for corruption convicted by the court is absolutely necessary, but in view of the limitations amongst them, the judge shall state how long the right is revoked, and provide a detailed reason why the relevant person shall be subject to an additional penalty of revocation, the non-regulation of the criteria of corruption convicts as to which additional crimes of impunity may be imposed and elected in public office in law. The removal of the right to vote and to be elected in public post is coherent with the progressive law conception that promotes the integration of law and the values of justice in society. The progressive step by the judge in the revocation of the right to vote and elected to the corruption convicts is absolutely necessary, with the legal pluralism approach to encourage pro justice and progressive law enforcement. Revision to the Criminal Code and Law no. 31 of 1999, especially regarding the criteria of what corruption convicts who can be sentenced to additional revocation of the right to vote and be elected is a necessity.

  3. Magadi tilapia ecological specialization: filling the early gap in the speciation continuum.

    Science.gov (United States)

    Pinho, Catarina; Faria, Rui

    2016-04-01

    Cichlid fish are well known for their high speciation rates, which are usually accompanied by spectacular and rapid diversification in eco-morphological and secondary sexual traits. This is best illustrated by the famous repeated explosive radiations in the African Great Lakes Tanganyika, Malawi and Victoria, each lake harbouring several hundreds of mostly endemic species. Correspondingly, cichlids diversified very rapidly in many other lakes across their range. Although the larger radiations, unparalleled in vertebrates, are certainly the most intriguing, they are also the most intricate and difficult to address because of their complex nature. This is where smaller, simpler systems may prove to be the most useful. In this issue of Molecular Ecology, Kavembe et al. (2016) report very recent genetic diversification accompanied by ecological specialization in cichlids of the small and ecologically extreme Lake Magadi, in Kenya. Combining geometric morphometrics, stable isotope analysis, population genomics using RADSeq data and coalescent-based modelling techniques, the authors characterize the eco-morphological differences between genetically distinct populations of Magadi tilapia (Alcolapia grahami), which are consistent with the different environmental conditions they experience, and infer their history of divergence. The simplicity of the focal system and the use of a multidisciplinary approach make this work particularly important for our understanding of the early stages of speciation, in both cichlids and other organisms. © 2016 John Wiley & Sons Ltd.

  4. Cardiac response and anxiety levels in psychopathic murderers

    OpenAIRE

    Serafim,Antonio de Pádua; Barros,Daniel Martins de; Valim,André; Gorenstein,Clarice

    2009-01-01

    OBJECTIVE: To compare the emotional response and level of anxiety of psychopathic murderers, non-psychopathic murderers, and nonpsychopathic non-criminals. METHOD: 110 male individuals aged over 18 years were divided into three groups: psychopathic murderers (n = 38); non-psychopathic murderers (n = 37) serving sentences for murder convictions in Maximum Security Prisons in the State of Sao Paulo; and non-criminal, non-psychopathic individuals (n = 35) according to the Psychopathy Checklist-R...

  5. Lessons from the conviction of the L'Aquila seven: The standard probabilistic earthquake hazard and risk assessment is ineffective

    Science.gov (United States)

    Wyss, Max

    2013-04-01

    An earthquake of M6.3 killed 309 people in L'Aquila, Italy, on 6 April 2011. Subsequently, a judge in L'Aquila convicted seven who had participated in an emergency meeting on March 30, assessing the probability of a major event to follow the ongoing earthquake swarm. The sentence was six years in prison, a combine fine of 2 million Euros, loss of job, loss of retirement rent, and lawyer's costs. The judge followed the prosecution's accusation that the review by the Commission of Great Risks had conveyed a false sense of security to the population, which consequently did not take their usual precautionary measures before the deadly earthquake. He did not consider the facts that (1) one of the convicted was not a member of the commission and had merrily obeyed orders to bring the latest seismological facts to the discussion, (2) another was an engineer who was not required to have any expertise regarding the probability of earthquakes, (3) and two others were seismologists not invited to speak to the public at a TV interview and a press conference. This exaggerated judgment was the consequence of an uproar in the population, who felt misinformed and even mislead. Faced with a population worried by an earthquake swarm, the head of the Italian Civil Defense is on record ordering that the population be calmed, and the vice head executed this order in a TV interview one hour before the meeting of the Commission by stating "the scientific community continues to tell me that the situation is favorable and that there is a discharge of energy." The first lesson to be learned is that communications to the public about earthquake hazard and risk must not be left in the hands of someone who has gross misunderstandings about seismology. They must be carefully prepared by experts. The more significant lesson is that the approach to calm the population and the standard probabilistic hazard and risk assessment, as practiced by GSHAP, are misleading. The later has been criticized as

  6. Religious Conviction, Morality and Social Convention among Finnish Adolescents

    Science.gov (United States)

    Vainio, Annukka

    2011-01-01

    The assumptions of Kohlberg, Turiel and Shweder regarding the features of moral reasoning were compared empirically. The moral reasoning of Finnish Evangelical Lutheran, Conservative Laestadian and non-religious adolescents was studied using Kohlberg's Moral Judgment Interview and Turiel Rule Transgression Interview methods. Religiosity and choice…

  7. Actual innocence: is death different?

    Science.gov (United States)

    Acker, James R

    2009-01-01

    Supreme Court jurisprudence relies heavily on the premise that "death is different" from other criminal sanctions, and that capital cases entail commensurately demanding standards of reliability. Although invoked most frequently with respect to sentencing, both precedent and logic suggest that heightened reliability applies as well to guilt determination in capital trials. Nevertheless, recurrent and highly visible wrongful convictions in capital cases have affected public opinion, contributed to a precipitous decline in new death sentences, and led to calls for reforms designed to guard against the risk of executing innocent persons. This article examines the implications of the "death is different" doctrine for the problem of wrongful convictions in both capital and non-capital cases. It argues that innovations designed to enhance reliability in the special context of death-penalty prosecutions are important in their own right, but relevant new safeguards also should extend to criminal cases generally, where innocent people are similarly at risk and wrongful convictions are far more prevalent. (c) 2009 John Wiley & Sons, Ltd.

  8. Gender differences in alcohol-related non-consensual sex; cross-sectional analysis of a student population

    Directory of Open Access Journals (Sweden)

    Gunby Clare

    2012-03-01

    Full Text Available Abstract Background Sexual offences are a global public health concern. Recent changes in the law in England and Wales have dramatically altered the legal landscape of sexual offences, but sexual assaults where the victim is voluntarily intoxicated by alcohol continue to have low conviction rates. Worldwide, students are high consumers of alcohol. This research aimed to compare male and female students in relation to their knowledge and attitudes about alcohol and sexual activity and to identify factors associated with being the victim of alcohol-related non-consensual sex. Methods 1,110 students completed an online questionnaire. Drinking levels were measured using the Alcohol Use Disorder Identification Test. Non-consensual sexual experiences were measured using the Sexual Experience Survey. Univariate and multivariate analyses were undertaken using chi square and backwards stepwise logistic regression respectively. Results A third of respondents had experienced alcohol-related non-consensual sex. Male and female students differed in the importance they gave to cues in deciding if a person wished to have sex with them and their understanding of the law of consent. 82.2% of women who had experienced alcohol-related non-consensual sex were hazardous drinkers compared to 62.9% who drank at lower levels (P Conclusions Alcohol-related coerced sexual activity is a significant occurrence among students; attitudinal and knowledge differences between males and females may explain this. Educational messages that focus upon what is deemed acceptable sexual behaviour, the law and rape myths are needed but are set against a backdrop where drunkenness is commonplace.

  9. Sampling genetic diversity in the sympatrically and allopatrically speciating Midas cichlid species complex over a 16 year time series

    Directory of Open Access Journals (Sweden)

    Bunje Paul ME

    2007-02-01

    Full Text Available Abstract Background Speciation often occurs in complex or uncertain temporal and spatial contexts. Processes such as reinforcement, allopatric divergence, and assortative mating can proceed at different rates and with different strengths as populations diverge. The Central American Midas cichlid fish species complex is an important case study for understanding the processes of speciation. Previous analyses have demonstrated that allopatric processes led to species formation among the lakes of Nicaragua as well as sympatric speciation that is occurring within at least one crater lake. However, since speciation is an ongoing process and sampling genetic diversity of such lineages can be biased by collection scheme or random factors, it is important to evaluate the robustness of conclusions drawn on individual time samples. Results In order to assess the validity and reliability of inferences based on different genetic samples, we have analyzed fish from several lakes in Nicaragua sampled at three different times over 16 years. In addition, this time series allows us to analyze the population genetic changes that have occurred between lakes, where allopatric speciation has operated, as well as between different species within lakes, some of which have originated by sympatric speciation. Focusing on commonly used genetic markers, we have analyzed both DNA sequences from the complete mitochondrial control region as well as nuclear DNA variation at ten microsatellite loci from these populations, sampled thrice in a 16 year time period, to develop a robust estimate of the population genetic history of these diversifying lineages. Conclusion The conclusions from previous work are well supported by our comprehensive analysis. In particular, we find that the genetic diversity of derived crater lake populations is lower than that of the source population regardless of when and how each population was sampled. Furthermore, changes in various estimates of

  10. Religious convictions in patients with epilepsy-associated affective disorders

    DEFF Research Database (Denmark)

    Vaaler, Arne E; Kondziella, Daniel; Morken, Gunnar

    2015-01-01

    Patients with epilepsy often have different mood symptoms and behavioral trait characteristics compared to the non-epileptic population. In the present prospective study, we aimed to assess differences in behavioral trait characteristics between acutely admitted, psychiatric in-patients with epil...... characteristics at admission or in clinical history should alert the psychiatrist and lead to closer examination for a possible convulsive disorder....

  11. The intergenerational transmission of violent offending

    NARCIS (Netherlands)

    van de Weijer, S.G.A.; Bijleveld, C.C.J.H.; Blokland, A.A.J.

    2014-01-01

    The current study examines the intergenerational transmission and concentration of violent offending using conviction data of 3,440 persons from three consecutive generations from the Dutch Transfive study. Violent offending is more concentrated within nuclear families than non-violent offending,

  12. Condom acceptability for prevention of HIV infection amongst male inmates in a convict prison in north western Nigeria: A Qualitative Research Report

    Directory of Open Access Journals (Sweden)

    Audu Onyemocho

    2014-01-01

    Full Text Available There is a general recognition of homosexuality being responsible for the high prevalence of HIV/AIDS among inmates in Nigerian prisons. However, the use of condoms which is an evidenced-based preventive measure is critical in the prison setting because of socio-cultural reasons. Due to the dynamic nature of the prison population, interventions targeting the prisons will have a significant effect on the general population. This study assessed condom acceptability for the prevention of HIV infection among male inmates in a convict prison in north-western, Nigeria in order to provide supplementary information that will corroborate some findings from quantitative methods. A qualitative study was conducted in Zaria prison between 18th December, 2012 and 8th January, 2013. Purposive sampling identified 48 inmates who had Focused Group Discussions (FGDs and In-depth Interviews (IDIs. Common trends and variations in the responses were identified and reflected as appropriate and presented as narratives with relevant quotations. Majority of the respondents agreed that homosexuality exists among the inmates, but all the inmates scowled at the distribution of condoms to inmates in prison. Majority were of the opinion that condom distribution will promote homosexuality which is prohibited by Nigerian laws and controlling HIV transmissions in Nigeria prisons can be effectively done through behavioral modifications that are geared towards total abstinence.

  13. Condom acceptability for prevention of HIV infection amongst male inmates in a convict prison in north western Nigeria: A Qualitative Research Report

    Directory of Open Access Journals (Sweden)

    Audu Onyemocho

    2014-09-01

    Full Text Available There is a general recognition of homosexuality being responsible for the high prevalence of HIV/AIDS among inmates in Nigerian prisons. However, the use of condoms which is an evidenced-based preventive measure is critical in the prison setting because of socio-cultural reasons. Due to the dynamic nature of the prison population, interventions targeting the prisons will have a significant effect on the general population. This study assessed condom acceptability for the prevention of HIV infection among male inmates in a convict prison in north-western, Nigeria in order to provide supplementary information that will corroborate some findings from quantitative methods. A qualitative study was conducted in Zaria prison between 18th December, 2012 and 8th January, 2013. Purposive sampling identified 48 inmates who had Focused Group Discussions (FGDs and In‐depth Interviews (IDIs. Common trends and variations in the responses were identified and reflected as appropriate and presented as narratives with relevant quotations. Majority of the respondents agreed that homosexuality exists among the inmates, but all the inmates scowled at the distribution of condoms to inmates in prison. Majority were of the opinion that condom distribution will promote homosexuality which is prohibited by Nigerian laws and controlling HIV transmissions in Nigeria prisons can be effectively done through behavioral modifications that are geared towards total abstinence.

  14. CLARIFICAREA PRINCIPIULUI NON BIS IN IDEM ÎN CAZURI DE CONDAMNARE A PERSOANELOR PENTRU CRIMELE CONTRA UMANITĂŢII

    Directory of Open Access Journals (Sweden)

    George LAZĂR

    2016-03-01

    Full Text Available Problema ştiinţifică de importanţă majoră abordată în cadrul acestui mesaj ştiinţific rezidă în identificarea particu­la­ri­tăţilor aplicării principiului non bis in idem în cadrul urmăririi penale, extrădării şi pedepsirii persoanelor care au comis crime împotriva umanităţii.Pentru a obţine un răspuns clar şi exhaustiv la acest subiect, urmează să ne aprofundăm în analiza doctrinei procesual penale generale ale principiului non bis in idem, precum şi a unor surse ştiinţifice speciale consacrate problemelor de aplicare a acestui principiu în cazul crimelor contra umanităţii. Clarification concerning the principle of non bis in idem in the cases of persons’ conviction for crimes against humanity The major scientific problem which has been analyzed in the realm of this scientific research is considered to be identification of the peculiarities of the principle non bis in idem in the process of criminal prosecution, extradition and criminal punishment of the persons who have committed crimes against humanity.In order to obtain a clear answer regarding this problem we have to be involved in the doctrinaire analysis of the criminal procedure theory of non bis in idem principle, as well as of some special scientific problems of its application in the cases of crimes against humanity.

  15. Analysis of fatigue resistance of continuous and non-continuous welded rectangular frame intersections by finite element method

    International Nuclear Information System (INIS)

    McCoy, M. L.; Moradi, R.; Lankarani, H. M.

    2011-01-01

    Agricultural and construction equipment are commonly implemented with rectangular tubing in their structural frame designs. A typical joining method to fabricate these frames is by welding and the use of ancillary structural plating at the connections. This aids two continuous members to pass through an intersection point of the frame with some degree of connectivity, but the connections are highly unbalanced as the tubing centroids exhibit asymmetry. Due to the practice of welded continuous member frame intersections in current agricultural equipment designs, a conviction may exist that welded continuous member frames are superior in structural strength over that of structural frame intersections implementing welded non-continuous members where the tubing centroids lie within two planes of symmetry, a connection design that would likely fabricating a more fatigue resistant structural frame. Three types of welded continuous tubing frame intersections currently observed in the designs of agricultural equipment were compared to two non-continuous frame intersection designs. Each design was subjected to the same loading condition and then examined for stress levels using the Finite Element Method to predict fatigue life. Results demonstrated that a lighter weight, non-continuous member frame intersection design was two magnitudes superior in fatigue resistance than some current implemented frame designs when using Stress-Life fatigue prediction methods and empirical fatigue strengths for fillet welds. Stress-Life predictions were also made using theoretical fatigue strength calculations for the fatigue strength at the welds for comparison to the empirical derived weld fatigue strength

  16. Anabolic androgenic steroids and violent offending: confounding by polysubstance abuse among 10,365 general population men.

    Science.gov (United States)

    Lundholm, Lena; Frisell, Thomas; Lichtenstein, Paul; Långström, Niklas

    2015-01-01

    Anabolic androgenic steroid (AAS) use is associated with aggressive and violent behaviour, but it remains uncertain if this relationship is causal in humans. We examined the link between AAS use and violent crime while controlling for polysubstance abuse and additional suggested risk factors for violence. Cross-sectional study of a population-based sample. In 2005, all Swedish-born male twins aged 20-47 years were invited to participate in the Swedish Twin Adults: Genes and Environment (STAGE) survey of the Swedish Twin Register (response rate = 60%). A total of 10,365 male survey participants with information on AAS use. Data on self-reported use of AAS, alcohol and other substances, attention deficit hyperactivity disorder (ADHD) and personality disorder symptoms were linked to nation-wide, longitudinal register information on criminal convictions, IQ, psychological functioning and childhood socio-economic status (SES) covariates. Any life-time use of AAS was associated strongly with conviction for a violent crime [2.7 versus 0.6% in convicted and non-convicted men, respectively; odds ratio (OR) = 5.0, 95% confidence interval (CI) = 2.7-9.3]. However, this link was substantially reduced and no longer significant when controlling for other substance abuse (OR = 1.6, 95% CI = 0.8-3.3). Controlling for IQ, psychological functioning, ADHD, personality disorder symptoms and childhood SES did not reduce the risk further. In the general population, co-occurring polysubstance abuse, but not IQ, other neuropsychological risks or socio-economic status, explains most of the relatively strong association between any anabolic androgenic steroid use and conviction for a violent crime. © 2014 Society for the Study of Addiction.

  17. A new genus and species of Heroini (Perciformes: Cichlidae from the early Eocene of southern South America

    Directory of Open Access Journals (Sweden)

    Patricia Alano Perez

    Full Text Available The Lumbrera Formation is the uppermost unit of the Salta Group, which crops out in northwestern Argentina. The paleoenvironment of the Lumbrera Formation is interpreted as a perennial lake deposited under temperate climatic conditions during the early to middle Eocene. Its fossil content is made up of palynomorphs, insects, crocodiles, turtles, lizards, and mammals, besides an ichthyofauna formed by cichlids, poeciliids and dipnoans. †Plesioheros chauliodus is described based on a single individual from this formation, which was fossilized as a lateral view impression (missing anal and caudal fins. It can be distinguished from other cichlids by a moderately deep body, enlarged anterior dentary teeth bearing subapical cusp, a low abdominal vertebral count (10, five canal openings in the dentary, and XI + 12 dorsal-fin rays. A phylogenetic analysis, using the matrix by Kullander (1998, recovered †Plesioheros within Heroini. This species was recovered most closely related to Australoheros and to the deep-bodied South American heroins. The occurrence of an Eocene Heroini, as well as of other cichlid lineages in the same stratigraphical level, is evidence of an ancient diversification in this family. This ancient age supports the hypothesis that the Cichlidae originated on Gondwana.

  18. Radiation-induced mutations in fish

    International Nuclear Information System (INIS)

    Schroeder, J.H.

    1980-01-01

    X-ray-induced mutations in teleostean fish were studied from the point of social behavior. A significant reduction in male aggression was found in the postirradiated F 1 generation after the irradiation of parental oogonia and spermatogonia, with 2 x 500 R (24 hr apart) of x-rays, but did not alter the aggression of F 1 females. A study on backcross generation of irradiated line fitted with a two-factor model of dominant genetic factors, high- and low-aggressive, which co-acted additively in repressing the male aggression. Social cohesiveness was compared between F 1 convict cichlides (C. nigrofasciatum) exposed by 0, 250, 500, 750, 1000, and 2000 R of x-rays. The best response was observed in males with 500 R and in females with 750 R. While an increase in cohesiveness was observed in F 1 males with 500 R, the cohesiveness of F 1 females decreased with 750 and 200 R, suggesting that the increase in male was associated with a reduction of inter-male aggression. A new ''guppy male courtship activity test'' was carried out in the offsprings of irradiated guppy, maintained in seawater and in freshwater. The mean values of both the frequency and the duration of four behavioral traits of the male guppy increased in postirradiated F 1 generation of the seawater substrain but were unchanged in that of freshwater's. In F 2 generation the mean values of the same behavioral characters decreased in both seawater and freshwater substrains. (Nakanishi, T.)

  19. Reexamining the domain of hypochondriasis: comparing the Illness Attitudes Scale to other approaches.

    Science.gov (United States)

    Fergus, Thomas A; Valentiner, David P

    2009-08-01

    The present study examined utility of the Illness Attitudes Scale (IAS; [Kellner, R. (1986). Somatization and hypochondriasis. New York: Praeger Publishers]) in a non-clinical college sample (N=235). Relationships among five recently identified IAS dimensions (fear of illness and pain, symptom effects, treatment experience, disease conviction, and health habits) and self-report measures of several anxiety-related constructs (health anxiety, body vigilance, intolerance of uncertainty, anxiety sensitivity, and non-specific anxiety symptoms) were examined. In addition, this study investigated the incremental validity of the IAS dimensions in predicting medical utilization. The fear of illness and pain dimension and the symptom effects dimension consistently shared stronger relations with the anxiety-related constructs compared to the other three IAS dimensions. The symptom effects dimension, the disease conviction dimension, and the health habits dimension showed incremental validity over the anxiety-related constructs in predicting medical utilization. Implications for the IAS and future conceptualizations of HC are discussed.

  20. Antidepressant use and violent crimes among young people: a longitudinal examination of the Finnish 1987 birth cohort.

    Science.gov (United States)

    Hemminki, Elina; Merikukka, Marko; Gissler, Mika; Wahlbeck, Kristian; Savolainen, Jukka; Ristikari, Tiina; Aaltonen, Mikko

    2017-01-01

    The use of antidepressants, especially selective serotonin reuptake inhibitors (SSRIs), has been questioned due to poor efficacy and safety. We examined whether young violent offenders were more likely antidepressant users prior to their first violent offence than other young persons. The study is a follow-up of children born in Finland in 1987 (n=59 120), linking national registers to each other using personal identity codes. Data on psychotropic drug use came from a register of reimbursed drugs and data on crimes from a register on court convictions (after the age of 14 years). Participants were followed until the age of 18 years, and for some analyses until the end of the follow-up (mean 21 years). To adjust for differences in background characteristics, regression analyses for antidepressant use were made, using the no-conviction group as the reference. Proportions of young people convicted by the age of 18 years were: 5% of boys (1.7% for violent crimes) and 1% (0.5%) of girls. Antidepressant use (both overall and for SSRIs) prior to violent crime was more common among those convicted than among those without convictions. Among boys with repeated violent crimes, it was also more common than among boys with non-violent crimes. Adjustment for differences in background characteristics decreased the associations between antidepressant use and violent crime, but did not eliminate them. The results add further evidence for caution in prescribing antidepressants among young persons. It also calls for a reanalysis of violence measures in the original trial data. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  1. Predator-induced changes of female mating preferences: innate and experiential effects

    Directory of Open Access Journals (Sweden)

    Indy Jeane

    2011-07-01

    Full Text Available Abstract Background In many species males face a higher predation risk than females because males display elaborate traits that evolved under sexual selection, which may attract not only females but also predators. Females are, therefore, predicted to avoid such conspicuous males under predation risk. The present study was designed to investigate predator-induced changes of female mating preferences in Atlantic mollies (Poecilia mexicana. Males of this species show a pronounced polymorphism in body size and coloration, and females prefer large, colorful males in the absence of predators. Results In dichotomous choice tests predator-naïve (lab-reared females altered their initial preference for larger males in the presence of the cichlid Cichlasoma salvini, a natural predator of P. mexicana, and preferred small males instead. This effect was considerably weaker when females were confronted visually with the non-piscivorous cichlid Vieja bifasciata or the introduced non-piscivorous Nile tilapia (Oreochromis niloticus. In contrast, predator experienced (wild-caught females did not respond to the same extent to the presence of a predator, most likely due to a learned ability to evaluate their predators' motivation to prey. Conclusions Our study highlights that (a predatory fish can have a profound influence on the expression of mating preferences of their prey (thus potentially affecting the strength of sexual selection, and females may alter their mate choice behavior strategically to reduce their own exposure to predators. (b Prey species can evolve visual predator recognition mechanisms and alter their mate choice only when a natural predator is present. (c Finally, experiential effects can play an important role, and prey species may learn to evaluate the motivational state of their predators.

  2. Phylogeny and biogeography of 91 species of heroine cichlids (Teleostei: Cichlidae) based on sequences of the cytochrome b gene.

    Science.gov (United States)

    Pérez, Gustavo A Concheiro; Rícan, Oldrich; Ortí, Guillermo; Bermingham, Eldredge; Doadrio, Ignacio; Zardoya, Rafael

    2007-04-01

    Heroini constitute the second largest tribe of Neotropical cichlids and show their greatest diversity in Mesoamerica. Although heroine species are morphologically and ecologically very diverse, they were all historically assigned to one single genus, Cichlasoma that was never formally revised from a phylogenetic point of view. Here, we present the most comprehensive molecular phylogeny of the tribe Heroini to date, based on the complete DNA sequence of the mitochondrial gene cytochrome b, and the analysis of 204 individuals representing 91 species. Phylogenetic analyses did not support the monophyly of heroines because the genus Pterophyllum was placed as the sister group of all remaining heroines plus cichlasomatines. However, the recovered relative position of Pterophyllum was without strong statistical support. Within the remaining heroines, Hyspelecara and Hoplarchus are recovered with low support in a basal position with respect to a clade that includes Heros, Uaru, Mesonauta, and Symphysodon, and the circumamazonian (CAM) heroines. The first clade is restricted to South America. The largest clade of heroines, the CAM heroines, include more than 85% of the species within the tribe. This clade is mostly Mesoamerican, but also contains four species found in the Greater Antilles (Nandopsis), and three genera found in South America (the 'Heros' festae group, Australoheros, and Caquetaia). Up to eight major lineages can be recovered within the CAM heroines, but the phylogenetic relationships among them remain unresolved. Two large suprageneric groups can be distinguished, the amphilophines and the herichthyines. The amphilophines include Amphilophus, Archocentrus, Hypsophrys, Neetroplus, Parachromis, Petenia, and five additional unnamed genera (the 'Heros' istlanus group, the 'Amphilophus' calobrensis group, the 'Heros' urophthalmus group, the 'Heros' wesseli group, and the 'Heros' sieboldii group). The herichthyines include the crown-group herichthyines

  3. The correlation between subordinate fish eye colour and received attacks: a negative social feedback mechanism for the reduction of aggression during the formation of dominance hierarchies.

    Science.gov (United States)

    Miyai, Caio A; Carretero Sanches, Fábio H; Costa, Tânia M; Colpo, Karine Delevati; Volpato, Gilson L; Barreto, Rodrigo E

    2011-12-01

    Eye darkening has been linked to social status in fish. The subordinate's eyes darken, while the eyes of the dominant fish become pale. Although this phenomenon has been described in salmonid fishes and in the African cichlid Nile tilapia Oreochromis niloticus, it is unclear whether eye darkening correlates with a reduction in aggressive behaviour. Thus, we evaluated the link between social status and eye darkening. We evaluated whether the eye colours of subordinate fish correlate with the frequency of received attacks in a neotropical fish, the pearl cichlid Geophagus brasiliensis. We paired pearl cichlids and quantified both the aggressive behaviour and the eye darkening of each fish. As has been described for Nile tilapia and Atlantic salmon, a clear-cut hierarchical relationship formed, where dominance and subordination were associated with pale and dark eye colours, respectively. Initially, eye colour darkening was positively correlated with the frequency of received attacks; however, a negative association occurred following eye darkening, in which the intensity of aggressive interactions decreased. Thus, fish that initially received a high number of attacks signalled subordination more rapidly and intensely (rapid and dramatic eye darkening), thereby inducing a negative social feedback mechanism that led to reduced aggression. Copyright © 2011 Elsevier GmbH. All rights reserved.

  4. Defensive zeal and the uncertain self: what makes you so sure?

    Science.gov (United States)

    McGregor, Ian; Marigold, Denise C

    2003-11-01

    In Studies 1-3, undergraduates with high self-esteem (HSEs) reacted to personal uncertainty-threats with compensatory conviction about unrelated issues and aspects of the self. In Study 1 HSEs reacted to salience of personal dilemmas with increased implicit conviction about self-definition. In Study 2 they reacted to the same uncertainty-threat with increased explicit conviction about social issues. In Study 3, HSEs (particularly defensive HSEs, i.e., with low implicit self-esteem; C. H. Jordan, S. J. Spencer, & M. P. Zanna, 2003) reacted to uncertainty about a personal relationship with compensatory conviction about social issues. For HSEs in Study 4, expressing convictions about social issues decreased subjective salience of dilemma-related uncertainties that were not related to the social issues. Compensatory conviction is viewed as a mode of repression, akin to reaction formation, that helps keep unwanted thoughts out of awareness.

  5. Felonious or violent criminal activity that prohibits gun ownership among prior purchasers of handguns: incidence and risk factors.

    Science.gov (United States)

    Wright, Mona A; Wintemute, Garen J

    2010-10-01

    Federal law prohibits firearm possession by felons and certain others. Little is known about criminal activity resulting in new ineligibility to possess firearms among persons who have previously purchased them. Cohort study of handgun purchasers ages 21 to 49 in California in 1991, 2,761 with a non-prohibiting criminal history at the time of purchase and 4,495 with no prior criminal record, followed for up to 5 years. The primary outcome measures were the incidence and relative risk of conviction for a felony or violent misdemeanor resulting in ineligibility to possess firearms under (a) California law or (b) federal law. Secondary measures were the incidence and relative risk of conviction for murder, forcible rape, robbery, or aggravated assault; and of arrest for any crime. A new conviction for a felony or violent misdemeanor leading to ineligibility to possess firearms under federal law was identified for 0.9% of subjects with no prior criminal history and 4.5% of those with 1 or more prior convictions (hazard ratio, 5.1; 95% confidence interval, 3.3-7.7). Risk was related inversely to age and directly to the extent of the prior criminal history; incidence rates varied by a factor of 200 or more among subgroups based on these characteristics. Among legal purchasers of handguns, the incidence of new felonious and violent criminal activity resulting in ineligibility to possess firearms is low for those with no prior criminal history but is substantially higher for those with a prior criminal record and is affected by demographic characteristics.

  6. Virtual Peace Education

    Science.gov (United States)

    Firer, Ruth

    2008-01-01

    This article is based on the convictions that peace education is the basis for any sustainable non-violent relations between parties in a conflict, and that virtual peace education is almost the only feasible way to practise peace education in an open violent conflict as is the current Israeli/Palestinians one. Moreover, virtual peace education…

  7. The culture of honor as the best explanation for the high rates of criminal homicide in Pernambuco: A comparative study with 160 convicts and non-convicts

    Directory of Open Access Journals (Sweden)

    Monica Gomes Teixeira Campello de Souza

    2016-01-01

    Full Text Available The present work aimed to investigate the propensity towards criminal homicide using a broad approach, encompassing theories based on socioeconomic frustration, decision-making processes, emotional attachment, testosterone, moral development, moral values, and the culture of honor. A total of 160 adult Brazilian men completed a questionnaire, various psychological tests, and right-hand digit ratio measurements. The findings discarded all theories tested, except the culture of honor. It is concluded that, in the region, public policies for the reduction of the rate of homicides must be specific to that crime and address cultural issues regarding honor and moral satisfaction.

  8. MEMBANGUN POLITIK KRIMINAL PADA PERTAMBANGAN BATUBARA YANG MENYEJAHTERAKAN MASYARAKAT MELALUI SARANA NON-PENAL

    Directory of Open Access Journals (Sweden)

    Arif Firmansyah

    2016-04-01

    Full Text Available In Article 33 paragraph (3 of the Constitution of 1945, states earth water and natural resources contained therein controlled by the state and used for the welfare of the people. The realization of such mastery by delegating the authority to manage the natural resources of the state to the company is to provide state Mining Permit or Special Mining Permit. In protecting and overseeing the company that is engaged in coal mining government passed Law Number 4 of 2009 on Mineral and Coal Mining. In Article 162 of Law Number 4 of 2009 states that every person who impede or interfere mining activities from business license holders of mining and business permit of the mining specifically penalized by fines or imprisonment. The article shows a process of criminalization an action (criminal policy, which aim to protect the companies that already have a Mining Permit, but the criminal policy is contrary to the purpose of the criminal policy is an effort for the welfare of society and policies the protection of society, the existence of Article 162 of Law Minerals coal and coal mining communities can impede convicted. In the case of the counteraction form caused they want to protect the environment or their ancestral lands from exploration activities. So it is activity is not uncommon form of criminal policy by means of criminal law that gives rise to new conflicts. Therefore the criminal policy should be shifted from penal facilities to non-penal policy more accommodating community participation, so that the purpose of the criminal policy, namely the welfare of society and protect the community can be realized.Keywords: Political Criminal, Mining, Non-Penal

  9. Mondialisation et réforme des sommets internationaux

    International Development Research Centre (IDRC) Digital Library (Canada)

    Plus inquiétant encore, la guerre aurait très bien pu se déclencher, non parce que ... Il m'apparaissait de plus en plus clairement que la gouvernance mondiale, dans ... plus que quiconque, peuvent concrétiser les choses ; je partage cette conviction. ..... Troisièmement, on pourrait ignorer les organisations existantes, et de ...

  10. Genetic variation and demographic history of the Haplochromis laparogramma group of Lake Victoria-An analysis based on SINEs and mitochondrial DNA.

    Science.gov (United States)

    Mzighani, Semvua I; Nikaido, Masato; Takeda, Miyuki; Seehausen, Ole; Budeba, Yohana L; Ngatunga, Benjamin P; Katunzi, Egid F B; Aibara, Mitsuto; Mizoiri, Shinji; Sato, Tetsu; Tachida, Hidenori; Okada, Norihiro

    2010-01-15

    More than 500 endemic haplochromine cichlid species inhabit Lake Victoria. This striking species diversity is a classical example of recent explosive adaptive radiation thought to have happened within the last approximately 15,000 years. In this study, we examined the population structure and historical demography of 3 pelagic haplochromine cichlid species that resemble in morphology and have similar niche, Haplochromis (Yssichromis) laparogramma, Haplochromis (Y.) pyrrhocephalus, and Haplochromis (Y.) sp. "glaucocephalus". We investigated the sequences of the mitochondrial DNA control region and the insertion patterns of short interspersed elements (SINEs) of 759 individuals. We show that sympatric forms are genetically differentiated in 4 of 6 cases, but we also found apparent weakening of the genetic differentiation in areas with turbid water. We estimated the timings of population expansion and species divergence to coincide with the refilling of the lake at the Pleistocene/Holocene boundary. We also found that estimates can be altered significantly by the choice of the shape of the molecular clock. If we employ the nonlinear clock model of evolutionary rates in which the rates are higher towards the recent, the population expansion was dated at around the event of desiccation of the lake ca. 17,000 YBP. Thus, we succeeded in clarifying the species and population structure of closely related Lake Victoria cichlids and in showing the importance of applying appropriate clock calibrations in elucidating recent evolutionary events.

  11. 77 FR 60922 - Criminal History Check Requirements for AmeriCorps State/National, Senior Companions, Foster...

    Science.gov (United States)

    2012-10-05

    ... prohibited individuals convicted of murder from serving in covered positions. The SAA also required that... Positions (Sec. 2522.200) The SAA amended the NCSA to prohibit an individual convicted of murder, as defined... individuals convicted of murder, as defined under 18 U.S.C. 1111, from serving in a covered position. Congress...

  12. A game of two? Gene expression analysis of brain (cyp19a1b) and gonadal (cyp19a1a) aromatase in females of a Neotropical cichlid fish through the parental care period and removal of the offspring.

    Science.gov (United States)

    Ramallo, Martín R; Honji, Renato M; Birba, Agustina; Morandini, Leonel; Varela, María L; Genovese, Griselda; Moreira, Renata G; Somoza, Gustavo M; Pandolfi, Matías

    2017-10-01

    For many species parental behavior is essential for the survival of the offspring. While the ultimate causes of teleost parental behavior have been widely studied, comparatively little is known about its proximate causes. The aim of this study was to analyze the yet unexplored, potential dual role of brain and gonadal aromatases, the enzymes responsible for the conversion of androgens to estrogens in the brains and gonads of teleosts, respectively, on the different stages of the maternal care period of the biparental cichlid Cichlasoma dimerus, locally known as chanchita. By immunohistochemistry we analyzed the neural distribution of brain aromatase and observed it exclusively within the forebrain, including areas involved in the regulation of parental behavior. We next analyzed the gene expression of brain aromatase in the brain, and gonadal aromatase in the ovary, of female chanchitas through the parental care period. To further characterize the physiological environment associated to maternal care, we also evaluated sex steroid levels (17β-estradiol, testosterone and 11-ketotestoterone) and ovarian follicle percentage. The onset of parental behavior specifically downregulated sex steroids synthesis and the rate of ovarian maturation, as denoted by a more than 10-fold decrease in steroid levels and delayed detection of mature follicles in females with offspring, compared to females which eggs were removed. Gene expression levels of both aromatases were independent of maternal care at the evaluated time points, even though they varied during the parental care period. Copyright © 2017 Elsevier Inc. All rights reserved.

  13. Microplastics have a more profound impact than elevated temperatures on the predatory performance, digestion and energy metabolism of an Amazonian cichlid.

    Science.gov (United States)

    Wen, Bin; Zhang, Nan; Jin, Shi-Rong; Chen, Zai-Zhong; Gao, Jian-Zhong; Liu, Ying; Liu, Han-Peng; Xu, Zhe

    2018-02-01

    Knowledge on the impacts of microplastics (MPs) pollution on freshwater environments and biota remains limited. Meanwhile, freshwater ecosystems have been threatened by elevated temperatures caused by climate change. To date, no information exists on how MPs-especially under elevated temperature conditions-affect predatory performance, digestive processes and metabolic pathways in freshwater organisms. Here, we examined MPs, elevated temperature and their combined effects on juveniles (0+ group) of an Amazonian cichlid, the discus fish (Symphysodon aequifasciatus). For 30 days, fish were exposed to ambient or elevated temperatures (i.e., 28 or 31 °C) in the absence or presence of MPs (i.e., 0 or 200 μg/L). The following metrics were quantified: MPs accumulation; predatory performance; and biomarkers involved in neurotransmission, digestion and energy production. The results showed that survival rate and body length were not affected by MPs, elevated temperatures or their combination. Elevated temperatures resulted in an increase in MP concentrations in fish bodies. Exposure to MPs decreased the post-exposure predatory performance (PEPP) at ambient temperatures but not at elevated temperatures. Elevated temperatures, however, had no effect on the PEPP but antagonistically interacted with MPs, leading to similar predatory performances under present and future conditions. Acetylcholinesterase (AChE) activity was only affected by MPs and decreased in the presence of MPs, indicating adverse effects in nervous and neuromuscular function and, thus, potentially in predatory performance. Trypsin activity was only influenced by MPs and decreased during exposure to MPs. Elevated temperatures or MPs alone increased the amylase activity but interacted antagonistically. Lipase activity was not influenced by either of the two stressors. In contrast, alkaline phosphatase (ALP) activity was affected by MPs or elevated temperatures alone and decreased with both stressors

  14. Job Displacement and Crime

    DEFF Research Database (Denmark)

    Bennett, Patrick; Ouazad, Amine

    We use a detailed employer-employee data set matched with detailed crime information (timing of crime, fines, convictions, crime type) to estimate the impact of job loss on an individual's probability to commit crime. We focus on job losses due to displacement, i.e. job losses in firms losing...... a substantial share of their workers, for workers with at least three years of tenure. Displaced workers are more likely to commit offenses leading to conviction (probation, prison terms) for property crimes and for alcohol-related traffic violations in the two years following displacement. We find no evidence...... that displaced workers' propensity to commit crime is higher than non-displaced workers before the displacement event; but it is significantly higher afterwards. Displacement impacts crime over and above what is explained by earnings losses and weeks of unemployment following displacement....

  15. [Social characteristics of patients in penitentiaries++].

    Science.gov (United States)

    Sannikov, A L; Kuznetsov, A A

    1998-01-01

    Three hundred and forty five convicted patients with tuberculosis underwent sociohygienic examinations. Among the examinees, the disease was first detected in 74.2% in a reformatory, in 25.8% in an investigating cell. The persons who fell ill with tuberculosis in places of confinement were mainly young, their ages ranged from 20 to 39 years. Only every 4 patients with tuberculosis are condemned for the first time, more than half the patients have over 3 convictions and every 5 patients have over 5 convictions. The most socially disadapted individuals fall ill with tuberculosis in the reformatory; among the examinees, 7.6% were homeless before conviction. The overwhelming majority of the convicts had no social contacts: 52.2% were never married. The study ascertained that in addition to the negative social environment, some criminogenic, personal, and behavioral factors of this contingent predispose to tuberculosis.

  16. Attrition and Rape Case Characteristics: A Profile and Comparison of Female Sex Workers and Non-Sex Workers.

    Science.gov (United States)

    Lea, Susan J; Callaghan, Lynne; Grafton, Iain; Falcone, M Aurora; Shaw, Steve

    2016-07-01

    The attrition of rape cases from the criminal justice system (CJS) remains high and there is a paucity of research in relation to marginalized groups. Sex workers (SWs) are vulnerable to sexual violence due to the nature of their work. They are also unlikely to report such violence to police for a range of reasons. Two stages of research sought to describe the victim, perpetrator, and offense characteristics of SW rape and to examine the attrition of these cases. All rapes and attempted rapes (N = 1,146) reported to police in a large city in the South West of England over a 21-year period were examined; 67 cases involved SWs. Data were extracted from police files in line with the variables of interest. Secondary analysis of the total number of SW rapes (n = 67) resulted in a profile of these cases. A matched pairs study revealed significant differences in victim, perpetrator, and assault characteristics between SW (n = 62) and non-sex-worker (NSW) samples (n = 62). Although no significant difference was found in terms of attrition from the CJS, SW cases were observed to secure more convictions for rape than NSW cases. The implications of the findings for practice and future research are discussed. © The Author(s) 2015.

  17. Browse Title Index

    African Journals Online (AJOL)

    Items 151 - 200 of 719 ... South American Dwarf Cichlids: A-numbers, Habitat, Care and Reproduction ... The Tilapia Trail — the life story of a fish biologist ... acid signatures indicate changes in phytobenthos composition on an artificial substrate?

  18. STUDY REGARDING THE LEGAL OR JUDICIAL REHABILITATION OF PERSONS ENGAGED IN ECONOMIC ACTIVITIES

    Directory of Open Access Journals (Sweden)

    Amelia MIHAELA DIACONESCU

    2018-03-01

    Full Text Available The consequences derived from any sentence pronounced for a crime committed by a major person, pertains to the constitutional law, administrative law, civil law, family law labor law or commercial law and consist in legal effects of criminal or extra-criminal nature, perpetual or long term ones which result from the fact of the criminal conviction itself and put the convict in a disadvantageous situation. Having a legal tool character by which the legal consequences resulting from a conviction cease or, in a larger sense, a legal tool character by which the ex-convicts are legally reintegrated in the society, its effects consist in the same.

  19. Reforming Scottish Criminal Procedure: In Search of Process Values

    Directory of Open Access Journals (Sweden)

    Pamela R. Ferguson

    2017-01-01

    Full Text Available Recent proposals to reform Scottish criminal procedure are motivated by considerations of efficiency and accurate fact-finding, and there is little attempt to offer a normative account. This paper describes these proposals and contends that their emphasis on finding ‘the truth’ is misplaced on two distinct bases: (1 it equates erroneous acquittals to wrongful convictions, thus fails to uphold a fundamental tenet of criminal procedure, namely the particular importance of protecting the innocent against wrongful conviction; and (2 it fails to recognise the importance of non-instrumental process values which are at the heart of the adversarial criminal trial.  The paper suggests that it is only by adhering to these process values that the state maintains – and demonstrates that it maintains – its moral authority to condemn and punish offenders. Key notes: Return Directive, entry ban, illegal migrant, criminal law sanctions, crimmigration, expulsion.

  20. Taking cognizance of mental illness in schizophrenics and its association with crime and substance-related diagnoses.

    Science.gov (United States)

    Munkner, R; Haastrup, S; Jørgensen, T; Andreasen, A H; Kramp, P

    2003-02-01

    To analyse how committed crimes and substance-related diagnoses are associated with the age on the first contact with the psychiatric hospital system and the age at diagnosing of schizophrenia among schizophrenics. In a register-based study including all Danes diagnosed with schizophrenia born after November 1, 1963, data on criminality, substance-related diagnoses and contacts with the psychiatric hospital system were analysed. Compared with the non-convicted schizophrenics the convicted were older on first contact with the psychiatric hospital system and older when the diagnosis of schizophrenia was first given. In contrast, having a substance-related diagnosis was associated with a younger age on first contact but did not influence the age at which the diagnosis of schizophrenia was given. It is important that both psychiatrists and the judicial system are aware of possible psychotic symptoms in criminal and abusing individuals to enable earlier detection and treatment.

  1. Coevolutionary patterning of teeth and taste buds

    Science.gov (United States)

    Bloomquist, Ryan F.; Parnell, Nicholas F.; Phillips, Kristine A.; Fowler, Teresa E.; Yu, Tian Y.; Sharpe, Paul T.; Streelman, J. Todd

    2015-01-01

    Teeth and taste buds are iteratively patterned structures that line the oro-pharynx of vertebrates. Biologists do not fully understand how teeth and taste buds develop from undifferentiated epithelium or how variation in organ density is regulated. These organs are typically studied independently because of their separate anatomical location in mammals: teeth on the jaw margin and taste buds on the tongue. However, in many aquatic animals like bony fishes, teeth and taste buds are colocalized one next to the other. Using genetic mapping in cichlid fishes, we identified shared loci controlling a positive correlation between tooth and taste bud densities. Genome intervals contained candidate genes expressed in tooth and taste bud fields. sfrp5 and bmper, notable for roles in Wingless (Wnt) and bone morphogenetic protein (BMP) signaling, were differentially expressed across cichlid species with divergent tooth and taste bud density, and were expressed in the development of both organs in mice. Synexpression analysis and chemical manipulation of Wnt, BMP, and Hedgehog (Hh) pathways suggest that a common cichlid oral lamina is competent to form teeth or taste buds. Wnt signaling couples tooth and taste bud density and BMP and Hh mediate distinct organ identity. Synthesizing data from fish and mouse, we suggest that the Wnt-BMP-Hh regulatory hierarchy that configures teeth and taste buds on mammalian jaws and tongues may be an evolutionary remnant inherited from ancestors wherein these organs were copatterned from common epithelium. PMID:26483492

  2. Coevolutionary patterning of teeth and taste buds.

    Science.gov (United States)

    Bloomquist, Ryan F; Parnell, Nicholas F; Phillips, Kristine A; Fowler, Teresa E; Yu, Tian Y; Sharpe, Paul T; Streelman, J Todd

    2015-11-03

    Teeth and taste buds are iteratively patterned structures that line the oro-pharynx of vertebrates. Biologists do not fully understand how teeth and taste buds develop from undifferentiated epithelium or how variation in organ density is regulated. These organs are typically studied independently because of their separate anatomical location in mammals: teeth on the jaw margin and taste buds on the tongue. However, in many aquatic animals like bony fishes, teeth and taste buds are colocalized one next to the other. Using genetic mapping in cichlid fishes, we identified shared loci controlling a positive correlation between tooth and taste bud densities. Genome intervals contained candidate genes expressed in tooth and taste bud fields. sfrp5 and bmper, notable for roles in Wingless (Wnt) and bone morphogenetic protein (BMP) signaling, were differentially expressed across cichlid species with divergent tooth and taste bud density, and were expressed in the development of both organs in mice. Synexpression analysis and chemical manipulation of Wnt, BMP, and Hedgehog (Hh) pathways suggest that a common cichlid oral lamina is competent to form teeth or taste buds. Wnt signaling couples tooth and taste bud density and BMP and Hh mediate distinct organ identity. Synthesizing data from fish and mouse, we suggest that the Wnt-BMP-Hh regulatory hierarchy that configures teeth and taste buds on mammalian jaws and tongues may be an evolutionary remnant inherited from ancestors wherein these organs were copatterned from common epithelium.

  3. A Swedish national twin study of criminal behavior and its violent, white-collar and property subtypes.

    Science.gov (United States)

    Kendler, K S; Maes, H H; Lönn, S L; Morris, N A; Lichtenstein, P; Sundquist, J; Sundquist, K

    2015-08-01

    We sought to clarify the etiological contribution of genetic and environmental factors to total criminal behavior (CB) measured as criminal convictions in men and women, and to violent (VCB), white-collar (WCCB) and property criminal behavior (PCB) in men only. In 21 603 twin pairs from the Swedish Twin Registry, we obtained information on all criminal convictions from 1973 to 2011 from the Swedish Crime Register. Twin modeling was performed using the OpenMx package. For all criminal convictions, heritability was estimated at around 45% in both sexes, with the shared environment accounting for 18% of the variance in liability in females and 27% in males. The correlation of these risk factors across sexes was estimated at +0.63. In men, the magnitudes of genetic and environmental influence were similar in the three criminal conviction subtypes. However, for violent and white-collar convictions, nearly half and one-third of the genetic effects were respectively unique to that criminal subtype. About half of the familial environmental effects were unique to property convictions. The familial aggregation of officially recorded CB is substantial and results from both genetic and familial environmental factors. These factors are moderately correlated across the sexes suggesting that some genetic and environmental influences on criminal convictions are unique to men and to women. Violent criminal behavior and property crime are substantially influenced respectively by genetic and shared environmental risk factors unique to that criminal subtype.

  4. The impact of the biotechnology in the sustainable development of the agriculture in the Latin America and Caribbean region: The Andean countries as model

    International Nuclear Information System (INIS)

    Artunduaga Salas, Rodrigo

    2001-01-01

    In accordance with the premise that the base of the sustainable agricultural development is based on the conviction that it is possible to increase the agricultural production without affecting the natural resources non-renewable, the author makes a conceptual mark of the technological revolution in Latin America, he makes an analysis of the environment and the paper of the different organisms of the state inside this field

  5. Forensic Medicine in South Africa: Associations between Medical Practice and Legal Case Progression and Outcomes in Female Murders

    Science.gov (United States)

    Abrahams, Naeemah; Jewkes, Rachel; Martin, Lorna J.; Mathews, Shanaaz

    2011-01-01

    Background Forensic medicine has been largely by-passed by the tide of health systems research and evidence based medicine. Murder victims form a central part of forensic medical examiners' case load, and women murdered by intimate partners are an important subgroup, representing the most severe form and consequence of intimate partner violence. Our aim was to describe the epidemiology of female murder in South Africa (by intimate and non-intimate partners); and to describe and compare autopsy findings, forensic medical management of cases and the contribution of these to legal outcomes. Methods We did a retrospective national study in a proportionate random sample of 25 medico-legal laboratories to identify all homicides in 1999 of women aged 14 years and over. Data were abstracted from the mortuary file and autopsy report, and collected from a police interview. Findings In 21.5% of cases the perpetrator was convicted. Factors associated with a conviction for the female murders included having a history of intimate partner violence 1.18 (95%CI: 0.16–2.20), weapon recovered 1.36 (95% CI:0.58–2.15) and a detective visiting the crime scene 1.57 (95% CI:0.14–3.00). None of the forensic medical activities increased the likelihood of a conviction. Conclusion The findings raise important questions about the role of forensic medicine in these cases. PMID:22194868

  6. Forensic medicine in South Africa: associations between medical practice and legal case progression and outcomes in female murders.

    Directory of Open Access Journals (Sweden)

    Naeemah Abrahams

    Full Text Available BACKGROUND: Forensic medicine has been largely by-passed by the tide of health systems research and evidence based medicine. Murder victims form a central part of forensic medical examiners' case load, and women murdered by intimate partners are an important subgroup, representing the most severe form and consequence of intimate partner violence. Our aim was to describe the epidemiology of female murder in South Africa (by intimate and non-intimate partners; and to describe and compare autopsy findings, forensic medical management of cases and the contribution of these to legal outcomes. METHODS: We did a retrospective national study in a proportionate random sample of 25 medico-legal laboratories to identify all homicides in 1999 of women aged 14 years and over. Data were abstracted from the mortuary file and autopsy report, and collected from a police interview. FINDINGS: In 21.5% of cases the perpetrator was convicted. Factors associated with a conviction for the female murders included having a history of intimate partner violence 1.18 (95%CI: 0.16-2.20, weapon recovered 1.36 (95% CI:0.58-2.15 and a detective visiting the crime scene 1.57 (95% CI:0.14-3.00. None of the forensic medical activities increased the likelihood of a conviction. CONCLUSION: The findings raise important questions about the role of forensic medicine in these cases.

  7. The UK National DNA Database: Implementation of the Protection of Freedoms Act 2012.

    Science.gov (United States)

    Amankwaa, Aaron Opoku; McCartney, Carole

    2018-03-01

    In 2008, the European Court of Human Rights, in S and Marper v the United Kingdom, ruled that a retention regime that permits the indefinite retention of DNA records of both convicted and non-convicted ("innocent") individuals is disproportionate. The court noted that there was inadequate evidence to justify the retention of DNA records of the innocent. Since the Marper ruling, the laws governing the taking, use, and retention of forensic DNA in England and Wales have changed with the enactment of the Protection of Freedoms Act 2012 (PoFA). This Act, put briefly, permits the indefinite retention of DNA profiles of most convicted individuals and temporal retention for some first-time convicted minors and innocent individuals on the National DNA Database (NDNAD). The PoFA regime was implemented in October 2013. This paper examines ten post-implementation reports of the NDNAD Strategy Board (3), the NDNAD Ethics Group (3) and the Office of the Biometrics Commissioner (OBC) (4). Overall, the reports highlight a considerable improvement in the performance of the database, with a current match rate of 63.3%. Further, the new regime has strengthened the genetic privacy protection of UK citizens. The OBC reports detail implementation challenges ranging from technical, legal and procedural issues to sufficient understanding of the requirements of PoFA by police forces. Risks highlighted in these reports include the deletion of some "retainable" profiles, which could potentially lead to future crimes going undetected. A further risk is the illegal retention of some profiles from innocent individuals, which may lead to privacy issues and legal challenges. In conclusion, the PoFA regime appears to be working well, however, critical research is still needed to evaluate its overall efficacy compared to other retention regimes. Copyright © 2018 Elsevier B.V. All rights reserved.

  8. Crusius et la certitude métaphysique en 1762 Crusius and metaphysical certainty in 1762

    Directory of Open Access Journals (Sweden)

    Tinca Prunea-Bretonnet

    2011-12-01

    Full Text Available L’article se propose d’analyser le rôle joué par la pensée de Christian August Crusius dans la genèse et l’articulation de la Preisschrift kantienne de 1762. Décidément anti-wolffien, Kant opte pour la méthode analytique comme seule capable d’assurer la scientificité de la philosophie. Dans un double mouvement de rapprochement et de prise de distance par rapport à certaines thèses crusiennes centrales, il entend démontrer que la certitude atteignable en métaphysique est suffisante pour la conviction, qu’elle est toute aussi « sûre » et « complète » que la certitude mathématique. Ne pouvant fonder cette certitude sur une simple conviction subjective, selon le principe de Crusius, Kant s’éloignera définitivement de ce dernier, non sans avoir intégré dans sa propre doctrine des éléments crusiens fondamentaux.This article aims to discuss the role played by Crusius’ thought in the genesis and the structure of Kant’s Preisschrift of 1762. Definitely opposed to Wolffian philosophy, Kant argues for the analythical method as the only method capable of ensuring a scientific status for philosophy. Simultaneously embracing and criticizing some central Crusian principles, he intends to demonstrate the possibility of a “sure” and “complete” metaphysical certainty, which would be as sufficient for conviction as the mathematical certainty. Kant refuses, however, to base metaphysical certainty on a simply subjective conviction, as Crusius suggests. That is why he ultimately rejects his predecessor’s philosophy, although not without making some fundamental Crusian elements part of his own doctrine.

  9. Comparison of parasitic helminth infection between the different age ...

    African Journals Online (AJOL)

    AJL

    tropical catfish species for aquaculture in West Africa. (Clay ... infection of fish species from the same reservoir. Similar .... emphasis on its role as a predator of cichlids. ... tentative de selection et d' adaptation de quelques especes a l'etang.

  10. Legal consequences of kleptomania.

    Science.gov (United States)

    Grant, Jon E; Odlaug, Brian L; Davis, Andrew A; Kim, Suck Won

    2009-12-01

    Although studies have examined clinical characteristics of kleptomania, no previous studies have examined the legal consequences of kleptomania. From 2001 to 2007, 101 adult subjects (n = 27 [26.7%] males) with DSM-IV kleptomania were assessed on sociodemographics and clinical characteristics including symptom severity, comorbidity, and legal repercussions. Of 101 subjects with kleptomania, 73.3% were female. Mean age of shoplifting onset was 19.4 +/- 12.0 years, and subjects shoplifted a mean of 8.2 +/- 11.0 years prior to meeting full criteria for kleptomania. Co-occurring depressive, substance use, and impulse control disorders were common. Sixty-nine subjects with kleptomania (68.3%) had been arrested, 36.6% had been arrested but not convicted, 20.8% had been convicted and incarcerated after conviction, while only 10.9% had been convicted and not incarcerated after conviction. Kleptomania is associated with significant legal repercussions. The findings emphasize the need for rigorous treatment approaches to target kleptomania symptoms and prevent re-offending.

  11. Genetic alterations as determined by quantitative morphological, viability and social behavioral traits in postirradiation generations of an inbred strain of the platyfish, Xiphophorus maculatus (Guenther)(Pisces: Poecliidae), induced by 1000 R of X-rays to spermatogonia and oogonia

    Energy Technology Data Exchange (ETDEWEB)

    Schroeder, J.H.; Heinrich, W. (Gesellschaft fuer Strahlen- und Umweltforschung m.b.H. Muenchen, Neuherberg (Germany, F.R.))

    Spermatogonia and oogonia were X-irradiated with 258 mC/kg in neonatal platyfish. This procedure corresponds to an exposure of immature spermatogonia and oogonia. The postirradiation (PI) F/sub 2/ generation was compared with controls of the same origin regarding viability characters (brood size, postnatal mortality, and sex ratio), quantitative morphological (number of vertebrae, body proportions) and social behavioral traits (cohesiveness of both sexes, male sexual and agonistic behavior patterns). Each of 5 pairs of F/sub 2/ fish were used as the founders for a one-year lasting population experiment in which the fish had been subjected to either mutation pressure through derivation from irradiated spermatogonia and oogonia as mentioned above or to selection pressure through predation by the convict cichlid, Cichlasoma nigrofasciatum, or to a combination of both in order to compare the outcome of this experiment with that of a control population. The PI F/sub 2/ exhibited a higher mortality rate than the controls. A unidirectional shift of the mean values of the quantitative morphological characters towards a more compact fish was observed in the postirradiation generations. The social cohesiveness of PI F/sub 2/ was higher than that of the controls. Male sexual activity was enhanced in PI F/sub 2/, and there was a similar trend to higher intraspecific aggressiveness among PI F/sub 2/ males. The single effects of mutation and selection pressures were beneficial in so far as the number of individuals and the biomass were enhanced, while a combination of both was deleterious endangering the population to extinction. Contrary to expectation, the coefficient of variation for the quantitative morphological traits was higher in the controls than in the Pi F/sub 2/.

  12. Fulltext PDF

    Indian Academy of Sciences (India)

    2012-10-30

    Oct 30, 2012 ... cichlids, a high-valued food fish endemic to peninsular India and Sri Lanka. The Vembanad lake ... during parental care, the growth rate of the mature fish is poor in pond rearing conditions. ... women Self-Help Groups. 5.

  13. Up close and personal: lesbian sub-culture in the female factories of Van Diemen's Land.

    Science.gov (United States)

    Nolan, Bláthnaid

    2013-01-01

    This article focuses on how the sexuality of convict women transported in the first half of the nineteenth century to Van Diemen's Land (Tasmania) was monitored by the British establishment. A series of Victorian enquiries into the convict system were set up to report on the efficacy of transportation. I argue that the anxious discussion and ensuing policies used to observe, curtail, punish, and "correct" convict women's bodies reveal the processes by which Victorian gender, class, and race regimes were socially constructed. Further, the article argues that convict women used various tools of resistance and defiance, one of which was the formation of lesbian sub-cultures as the embodiment of sexual dissidence.

  14. Nuclear-weapon-free zones in the Asia Pacific region

    International Nuclear Information System (INIS)

    Yamada, Eiji

    1997-01-01

    The Review and Extension Conference of the Parties to the Non-Proliferation Treaty decided on the indefinite extension of the Treaty, and adopted two documents 'principles and Objectives for Nuclear Non-Proliferation and Disarmament' and 'Strengthening the Review Process for the Treaty'. In the former document, the Conference encourages the establishment of nuclear-weapon-free zones, on the conviction that such zones will enhance global and regional peace and security. Besides the Rarotonga Treaty, ASEAN countries plan to establish a nuclear-weapon-free zone in the South-East Asia

  15. Lipoescultura no tumescente Non tumescent liposculpture

    Directory of Open Access Journals (Sweden)

    E.R. Cahuana Salinas

    2006-03-01

    Full Text Available En este trabajo, debido a los serios cuestionamientos que tenemos con el “dogma” de la “Tumescencia” como requisito para hacer la liposucción convencional, planteamos como alternativa una nueva técnica denominada por nosotros “lipoescultura no tumescente” que se basa en dos principios: 1 uso de solución vasoconstrictora 2A, 2 Técnica de infiltración suprafascial. Nuestro trabajo es de tipo prospectivo y es el producto de 18 meses de observación, análisis y puesta en marcha de una hipótesis que finalmente confirmó nuestras sospechas: reducción muy importante de los riesgos de una lipoescultura, resultados estéticos de mejor calidad y convicción de lo innecesario y poco racional que, a nuestro juicio, resulta la tumescencia en la lipoescultura; por lo tanto creemos que su vigencia está seriamente cuestionada en estos momentos. Sin embargo debemos reconocer la importancia que tuvo en tanto no hubo un cuestionamiento serio y una alternativa razonable.In this work, due to the serious questions that we have with the “dogma” of “Tumescencia” as a requirement to make the conventional liposuction, we suggest as an alternative a new technique named by us “non tumescent liposcultpture”, based in two principles: 1 use of solution 2A, 2 suprafascial infiltration. Our work is prospective and it is the result of 18 months observation, analysis and development of a hypothesis that has finally confirmed our suspicions: very important reduction of the risks of a liposculture, aesthetic results of better quality and the conviction about how unnecessary and not very rational “tumescencia” can be in the liposculture; therefore we believe that its validity is seriously questioned now, however we should recognize the importance that it had as long as there were not serious questions nor a reasonable alternative.

  16. Variation in Assemblages of Small Fishes and Microcrustaceans After Inundation of Rarely Flooded Wetlands of the Lower Okavango Delta, Botswana

    Science.gov (United States)

    Siziba, Nqobizitha; Chimbari, Moses J.; Masundire, Hillary; Mosepele, Ketlhatlogile; Ramberg, Lars

    2013-12-01

    Water extraction from floodplain river systems may alter patterns of inundation of adjacent wetlands and lead to loss of aquatic biodiversity. Water reaching the Okavango Delta (Delta), Botswana, may decrease due to excessive water extraction and climate change. However, due to poor understanding of the link between inundation of wetlands and biological responses, it is difficult to assess the impacts of these future water developments on aquatic biota. Large floods from 2009 to 2011 inundated both rarely and frequently flooded wetlands in the Delta, creating an opportunity to examine the ecological significance of flooding of wetlands with widely differing hydrological characteristics. We studied the assemblages of small fishes and microcrustaceans, together with their trophic relationships, in temporary wetlands of the lower Delta. Densities of microcrustaceans in temporary wetlands were generally lower than previously recorded in these habitats. Microcrustacean density varied with wetland types and hydrological phase of inundation. High densities of microcrustaceans were recorded in the 2009 to 2010 flooding season after inundation of rarely flooded sites. Large numbers of small fishes were observed during this study. Community structure of small fishes differed significantly across the studied wetlands, with poeciliids predominant in frequently flooded wetlands and juvenile cichlids most abundant in rarely flooded wetlands (analysis of similarity, P < 0.05). Small fishes of <20 mm fed largely on microcrustaceans and may have led to low microcrustacean densities within the wetlands. This result matched our prediction that rarely flooded wetlands would be more productive; hence, they supported greater populations of microcrustaceans and cichlids, which are aggressive feeders. However, the predominance of microcrustaceans in the guts of small fishes (<20 mm) suggests that predation by fishes may also be an important regulatory mechanism of microcrustacean

  17. [Ethnic differences in forensic psychiatry: an exploratory study at a Dutch forensic psychiatric centre].

    Science.gov (United States)

    van der Stoep, T

    Compared to the percentage of ethnic minorities in the general population, ethnic minorities are overrepresented in forensic psychiatry. If these minorities are to be treated successfully, we need to know more about this group. So far, however, little is known about the differences between mental disorders and types of offences associated with patients of non-Dutch descent and those associated with patients of Dutch descent. AIM: To take the first steps to obtain the information we need in order to provide customised care for patients of non-Dutch descent. METHOD: It proved possible to identify differences between patients of Dutch and non-Dutch descent with regard to treatment, diagnosis and offences committed within a group of patients who were admitted to the forensic psychiatric centre Oostvaarderskliniek during the period 2001 - 2014. RESULTS: The treatment of patients of non-Dutch descent lasted longer than the treatment of patients of Dutch descent (8.5 year versus 6.6 year). Furthermore, patients from ethnic minority groups were diagnosed more often with schizophrenia (49.1% versus 21.4%), but less often with pervasive developmental disorders or sexual disorders. Patients of non-Dutch descent were more often convicted for sexual crimes where the victim was aged 16 years or older, whereas patients of Dutch descent were convicted of sexual crimes where the victim was under 16. CONCLUSION: There are differences between patients of Dutch and non-Dutch descent with regard to treatment duration, diagnosis and offences they commit. Future research needs to investigate whether these results are representative for the entire field of forensic psychiatry and to discover the reasons for these differences.

  18. Interspecific competition, predation, and the coexistence of three closely related neotropical armoured catfishes (Siluriformes - Callichthyidae)

    NARCIS (Netherlands)

    Mol, J.H.A.

    1995-01-01

    Tropical ecosystems are renowned for their high biodiversity with many closely related species living together. Alpha diversity of tropical freshwater fishes is also extremely high, as exemplified by the cichlid fauna of the Great African lakes and the neotropical characins. Since

  19. Predation risk drives social complexity in cooperative breeders

    NARCIS (Netherlands)

    Groenewoud, Frank; Frommen, Joachim Gerhard; Josi, Dario; Tanaka, Hirokazu; Jungwirth, Arne; Taborsky, Michael

    2016-01-01

    Predation risk is a major ecological factor selecting for group living. It is largely ignored, however, as an evolutionary driver of social complexity and cooperative breeding, which is attributed mainly to a combination of habitat saturation and enhanced relatedness levels. Social cichlids neither

  20. African Zoology - Vol 35, No 2 (2000)

    African Journals Online (AJOL)

    The reproductive biology of an open-water spawning Lake Malawi cichlid, Copadichromis chrysonotus · EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Lance W. Smith, 151-164. http://dx.doi.org/10.1080/15627020.2000.11657086 ...

  1. Asymmetric interspecific territorial competition over food resources ...

    African Journals Online (AJOL)

    The rock-dwelling cichlids in Lake Malawi comprise the most diverse freshwater fish community in the world. Individuals frequently interact with heterospecifics through feeding territoriality. Underwater observations and experiments were conducted to examine interspecific variation in the frequencies of territorial behaviour ...

  2. Convergent evolution of complex brains and high intelligence.

    Science.gov (United States)

    Roth, Gerhard

    2015-12-19

    Within the animal kingdom, complex brains and high intelligence have evolved several to many times independently, e.g. among ecdysozoans in some groups of insects (e.g. blattoid, dipteran, hymenopteran taxa), among lophotrochozoans in octopodid molluscs, among vertebrates in teleosts (e.g. cichlids), corvid and psittacid birds, and cetaceans, elephants and primates. High levels of intelligence are invariantly bound to multimodal centres such as the mushroom bodies in insects, the vertical lobe in octopodids, the pallium in birds and the cerebral cortex in primates, all of which contain highly ordered associative neuronal networks. The driving forces for high intelligence may vary among the mentioned taxa, e.g. needs for spatial learning and foraging strategies in insects and cephalopods, for social learning in cichlids, instrumental learning and spatial orientation in birds and social as well as instrumental learning in primates. © 2015 The Author(s).

  3. Fish Inner Ear Otolith Growth Under Real Microgravity (Spaceflight) and Clinorotation

    Science.gov (United States)

    Anken, Ralf; Brungs, Sonja; Grimm, Dennis; Knie, Miriam; Hilbig, Reinhard

    2016-06-01

    Using late larval stages of cichlid fish ( Oreochromis mossambicus) we have shown earlier that the biomineralization of otoliths is adjusted towards gravity by means of a neurally guided feedback loop. Centrifuge experiments, e.g., revealed that increased gravity slows down otolith growth. Microgravity thus should yield an opposite effect, i.e., larger than normal otoliths. Consequently, late larval cichlids (stage 14, vestibular system operational) were subjected to real microgravity during the 12 days FOTON-M3 spaceflight mission (OMEGAHAB-hardware). Controls were kept at 1 g on ground within an identical hardware. Animals of another batch were subsequently clinorotated within a submersed fast-rotating clinostat with one axis of rotation (2d-clinostat), a device regarded to simulate microgravity. Temperature and light conditions were provided in analogy to the spaceflight experiment. Controls were maintained at 1 g within the same aquarium. After all experiments, animals had reached late stage 21 (fish can swim freely). Maintenance under real microgravity during spaceflight resulted in significantly larger than normal otoliths (both lapilli and sagittae, involved in sensing gravity and the hearing process, respectively). This result is fully in line with an earlier spaceflight study in the course of which otoliths from late-staged swordtails Xiphophorus helleri were analyzed. Clinorotation resulted in larger than 1 g sagittae. However, no effect on lapilli was obtained. Possibly, an effect was present but too light to be measurable. Overall, spaceflight obviously induces an adaptation of otolith growth, whereas clinorotation does not fully mimic conditions of microgravity regarding late larval cichlids.

  4. PENGARUH PENERAPAN FAIR VALUE NON CURRENT ASSET DAN MANAJEMEN PAJAK ATAS ASSET PERUSAHAAN TERHADAP FEE AUDIT

    Directory of Open Access Journals (Sweden)

    R Nelly Nur Apandi

    2016-12-01

    Full Text Available Abstract. The implementation of international accounting standards has increased fair value implementation in financial reporting. The benefit is that fair value represents the true economic condition of an entity. On the other hand, this concept also causes problem related to its measurement subjectivity, especially on non current asset. It makes the auditor do a greater effort to gain a sufficient conviction over the fairness of non current asset. This implicates a greater audit fee. This study aims to seek the effect of fair value of non current asset on audit fee. This study also aims to seek any moderation from tax management of companies asset that affects the relationship between fair value implementation and audit fee. By using OLS regression, this study examines companies listed in Indonesia Stock Exchange from 2012 to 2014, with a sample of 114 companies. The result show that fair value implementation affects audit fee and this study is able to prove that fair value implementation moderated by tax management of company asset affects audit fee. Keywords: Fair Value Non Current Asset; Tax Management; Audit Fee   Abstrak. Penerapan standar akuntansi internasional telah meningkatkan penerapan nilai wajar dalam pelaporan keuangan. Manfaatnya adalah bahwa nilai wajar merupakan kondisi ekonomi sebenarnya dari suatu entitas. Di sisi lain, konsep ini juga menyebabkan masalah yang berkaitan dengan subjektivitas pengukurannya, terutama pada aset tidak lancar. Hal ini membuat auditor melakukan upaya yang lebih besar untuk mendapatkan keyakinan yang memadai atas kewajaran aset tidak lancar. Ini berimplikasi pada biaya audit yang lebih besar. Penelitian ini bertujuan untuk mengetahui pengaruh nilai wajar aktiva tidak lancar terhadap biaya audit. Penelitian ini juga bertujuan untuk mencari moderasi dari pengelolaan pajak aset perusahaan yang mempengaruhi hubungan antara penerapan nilai wajar dan biaya audit. Dengan menggunakan regresi OLS

  5. Competition of Dynamic Self-Confidence and Inhomogeneous Individual Influence in Voter Models

    Directory of Open Access Journals (Sweden)

    Fei Xiong

    2013-12-01

    Full Text Available In social systems, agents often have different ability to persuade neighbors to adopt their opinions. In this paper, we aim to investigate how the location and heterogeneity of influencers in social networks can improve convergence. We propose a voter model with dynamic self-conviction and heterogeneous individual influence which is related to the underlying network topology. An agent may keep its current opinion according to personal conviction, or otherwise, it may preferentially choose the opinion of the neighbor that has a great influence. Individual conviction evolves during the dynamic process, and can be strengthened by social recognition. Simulations indicate our model has three nontrivial results. First, the conservation of average magnetization in the voter model is broken under the effect of individual conviction and influence, and the system evolves to an ordered state in which one opinion is dominant, but total consensus is prevented by extremists. Furthermore, individual influence has a subtle action on opinion evolution. The heterogeneity of individual influence accelerates the relaxation process, but, with the action of dynamic conviction, more heterogeneous influence does not mean the average magnetization will be more ordered. In addition, when competing with agents’ conviction, more heterogeneous individual influence plays a more significant role in agents’ decisions. These results are helpful for understanding some aspects of collective phenomena that occur on online social media.

  6. Genetic characterization of fin fish species from the Warri River at ...

    African Journals Online (AJOL)

    A study to evaluate the genetic similarities and differences among 11 specimens of cichlids and four specimens of mudcatfishes obtained from Warri River was carried out through DNA fingerprinting analysis using random amplified polymorphic DNA (RAPD)-PCR amplification with seven decamer primers and dendrograms ...

  7. On the management of a tropical reservoir fishery

    NARCIS (Netherlands)

    Pet, J.S.

    1995-01-01

    The major factor in the development of Sri Lankan inland fisheries was the introduction, in 1952, of the exotic cichlid Oreochromis mossambicus (Peters) which dominated the catch ever since. The most important water bodies for the inland fisheries are the larger

  8. Introgression in Lake Malaŵi

    DEFF Research Database (Denmark)

    Stauffer, Jay R.; Madsen, Henry; Rollinson, David

    2014-01-01

    with the indigenous strain of S. haematobium, which ultimately produced via introgression a strain that can use both B. globosus and B. nyassanus as intermediate hosts. This actively evolving situation involving intermediate snail-host switching and decline of Trematocranus placodon, a natural cichlid snail predator...

  9. Den uformelle straf og velfærdsstaten

    DEFF Research Database (Denmark)

    Tranæs, Torben

    2008-01-01

    Informal punishment consists of the difference between a criminal’s life circumstances after conviction and punishment, and that which he or she would have experienced without conviction and punishment. Despite a long debate, it remains unclear whether a well-developed welfare state with a high...... level of social security prevents or promotes crime among ex-convicts via its influence on informal economic punishment. The current article has two purposes: First, to examine whether, and by what means, social security support - in this case, as provided in Denmark - has any measurable impact...... on the informal punishment experienced by ex-convicts; and, second, to quantify informal economic punishment as experienced with and without this social security support, i.e., inclusion of unemployment insurance benefits and other welfare payments. Internationally, there have been few attempts to quantify...

  10. Checklist of the fish parasitic genus Cichlidogyrus (Monogenea ...

    African Journals Online (AJOL)

    Current knowledge of the 85 species in the genus Cichlidogyrus, collected worldwide, including their hosts, localities and authors, is summarised in a table. Although these parasites occur mainly in Africa, representatives have been recorded on cichlids in Mexico. Their distribution and host specificity are commented on.

  11. An overview of the Gyrodactylus (Monogenea: Gyrodactylidae) species parasitizing African catfishes, and their morphological and molecular diversity

    Czech Academy of Sciences Publication Activity Database

    Přikrylová, I.; Blažek, Radim; Vanhove, M. P. M.

    2012-01-01

    Roč. 110, č. 3 (2012), s. 1185-1200 ISSN 0932-0113 R&D Projects: GA MŠk LC522 Institutional research plan: CEZ:AV0Z60930519 Keywords : Monogenea * South Africa * Lake Tanganyika * Cichlid fishes Subject RIV: EG - Zoology Impact factor: 2.852, year: 2012

  12. The cost of poor land use practices in Lake Nakivale Wetland in ...

    African Journals Online (AJOL)

    GREG

    2006-09-15

    Sep 15, 2006 ... land degradation, wetland encroachment, loss of wildlife habitats and crucial wetland resources. Based on a research ... species of birds, two of the endangered cichlid fish species ... rectly reflect the conservation cost the rural people incur ..... adjacent land use on wetland species richness and community.

  13. The structuring process of the macroparasite community of an experimental population of cichlasoma urophthalmus through time

    Science.gov (United States)

    Vidal-Martinez; Kennedy; Aguirre-Macedo

    1998-09-01

    The structuring process of the macroparasite community of caged Cichlasoma urophthalmus was studied over time using sentinel fish. Three thousand uninfected cichlids were stocked in floating cages introduced into a quarry in which a wild population of the same species was present. Caged and wild cichlids were sampled monthly over 6 and 7 months, respectively. Seventeen macroparasite species were found in the wild C. urophthalmus population, ten of which were detected in the caged population after 6 months. Early infections were by those species that were more frequent and abundant in the wild population, while helminths with a low prevalence and abundance in the wild appeared later in the caged fish population. The results suggested that the structuring process of the macroparasite community of caged C. urophthalmus followed a predictable pattern, in which those species that were most frequent and abundant in the wild were the first to establish in sentinel fish.

  14. 19 CFR 112.48 - Revocation or suspension of identification cards.

    Science.gov (United States)

    2010-04-01

    ... director for any of the following grounds: (1) Such card was obtained through fraud or the misstatement of a material fact; (2) The holder of such card is convicted of a felony, or convicted of a misdemeanor...

  15. Forensic DNA evidence and the death penalty in the Philippines.

    Science.gov (United States)

    De Ungria, M C A; Sagum, M S; Calacal, G C; Delfin, F C; Tabbada, K A; Dalet, M R M; Te, T O; Diokno, J I; Diokno, M S I; Asplen, C A

    2008-09-01

    The death penalty remains a contentious issue even though it has been abolished in countries such as Australia, New Zealand, Canada, European Union member nations and some Asian countries such as Cambodia, East Timor and Nepal. Many argue that the irrevocability of the death penalty, in the face of potential erroneous convictions, can never justify its imposition. The Philippines, the first Asian country that abolished the death penalty in 1987, held the record for the most number of mandatory death offenses (30 offenses) and death eligible offenses (22 offenses) after it was re-imposed in 1994. Majority of death penalty convictions were decided based on testimonial evidence. While such cases undergo automatic review by the Supreme Court, the appellate process in the Philippines is not structured to accept post-conviction evidence, including DNA evidence. Because of the compelling nature of post-conviction DNA evidence in overturning death penalty convictions in the United States, different groups advocated its use in the Philippines. In one such case, People v Reynaldo de Villa, the defendant was charged with raping his 13-year-old niece that supposedly led to birth of a female child, a situation commonly known as 'criminal paternity'. This paper reports the results of the first post-conviction DNA test using 16 Short Tandem Repeat (STR) DNA markers in a criminal paternity case (People v Reynaldo de Villa) and discusses the implications of these results in the Philippine criminal justice system.

  16. PIDANA PENCABUTAN KEMERDEKAAN JANGKA PENDEK DITINJAU DARI TUJUAN PEMIDANAAN DAN RESOSIALISASI NARAPIDANA

    Directory of Open Access Journals (Sweden)

    Ahmad Basuki

    2006-10-01

    Full Text Available Crime is reaction given by State to someone which have proven to make a mistake to conduct doing an injustice. As an instrument, crime dropped pursuant to and considerations of purpose selected so that will bring benefit for punished by self and for society. Therefore construction of crime person have to be given in execution of crime in institute of community. But the effort do not always in line with crime direction. Appearance of Inmate Subculture in convict community and also given by negative stigma is society is reality in life of diffraction convict become trigger of prisonisasi for convict. Side ejects execution crime in institute of community require to get special attention for convict repeal of freedom short-range. So that crime which isn’t it effective correct reach the target of expected crime, not on the contrary.

  17. Philometra mirabilis sp. n. (Nematoda: Philometridae), a new gonad-infecting parasite from the freshwater fish Cichla mirianae (Cichlidae) in Brazilian Amazon

    Czech Academy of Sciences Publication Activity Database

    Moravec, František; Diggles, B.

    2015-01-01

    Roč. 114, č. 5 (2015), s. 1929-1932 ISSN 0932-0113 R&D Projects: GA ČR GBP505/12/G112 Institutional support: RVO:60077344 Keywords : parasitic nematode * Dracunculoidea * cichlid fish * ovary * Amazon River basin * Brazil Subject RIV: EG - Zoology Impact factor: 2.027, year: 2015

  18. Modeling the effects of multicontextual physics instruction on learner expectations and understanding of force and motion systems

    Science.gov (United States)

    Deese Becht, Sara-Maria Francis

    1999-11-01

    The purpose of this study is two-fold involving both practical and theoretical modeling components. The practical component, an experiential-learning phase, investigated a study population for effects that increasing levels of multicontextual physics activities have on student understanding of Newtonian systems of motion. This contextual-learning model measured learner convictions and non-response gaps and analyzed learner response trends on context, technology, challenge, growth, and success. The theoretical component, a model-building phase, designed a dynamic-knowing model for learning along a range of experiential tasks, from low to high context, monitored for indicators of learning in science and mathematics: learner academic performance and ability, learner control and academic attitude, and a learner non- response gap. This knowing model characterized a learner's process-of-knowing on a less to more expert- like learner-response continuum using performance and perspective indices associated with level of contextual- imagery referent system. Data for the contextual-learning model were collected on 180 secondary subjects: 72 middle and 108 high, with 36 physics subjects as local experts. Subjects were randomly assigned to one of three experimental groups differing only on context level of force and motion activities. Three levels of information were presented through context-based tasks: momentum constancy as inertia, momentum change as impulse, and momentum rate of change as force. The statistical analysis used a multi-level factorial design with repeated measures and discriminate analysis of response-conviction items. Subject grouping criteria included school level, ability level in science and mathematics, gender and race. Assessment criteria used pre/post performance scores, confidence level in physics concepts held, and attitude towards science, mathematics, and technology. Learner indices were computed from logit- transforms applied to learner outcomes

  19. Amygdala dysfunction attenuates frustration-induced aggression in psychopathic individuals in a non-criminal population.

    Science.gov (United States)

    Osumi, Takahiro; Nakao, Takashi; Kasuya, Yukinori; Shinoda, Jun; Yamada, Jitsuhiro; Ohira, Hideki

    2012-12-15

    Individuals with psychopathy have an increased tendency toward certain types of aggression. We hypothesized that successful psychopaths, who have no criminal convictions but can be diagnosed with psychopathy in terms of personality characteristics, are skilled at regulating aggressive impulses, compared to incarcerated unsuccessful psychopaths. In this block-designed functional magnetic resonance imaging (fMRI) study, we sought to clarify the neural mechanisms underlying differences in frustration-induced aggression as a function of psychopathy in non-criminal populations. Twenty male undergraduate students who completed a self-report psychopathy questionnaire were scanned while they completed a task in which they either could or could not punish other individuals who made unfair offers of monetary distribution. Individuals with high psychopathic tendencies were less likely to make a decision to inflict costly punishment on people proposing unfair offers. During this decision-making, psychopathy was associated with less amygdala activity in response to the unfairness of offers. Moreover, the amygdala dysfunction in psychopathic individuals was associated with reduced functional connectivity with dopaminergic-related areas, including the striatum, when punishment was available compared to when it was unavailable. The possibility that levels of psychopathic traits in a regular population were milder than in incarcerated populations cannot be ruled out. The findings indicate that amygdala dysfunction underlies affective deficits of psychopathy. We propose that the insensitivity of the amygdala to the affective significance of social stimuli contributes to an increased risk of violation of social norms, but enhances the ability to attenuate impulses toward maladaptive aggression in successful psychopaths. Copyright © 2012 Elsevier B.V. All rights reserved.

  20. The development of non-essentialist concepts of ethnicity among children in a multicultural London community.

    Science.gov (United States)

    Woods, Ruth

    2017-11-01

    Ethnic constancy, the belief that a person cannot change ethnicity, is an important component of ethnic essentialism, the conviction that members of ethnic groups share an immutable underlying essence. Most children in previous research viewed ethnicity as increasingly immutable with age. However, some evidence suggests that children growing up in communities, which define ethnicity primarily in terms of changeable features (e.g., lifestyle) rather than fixed features (e.g., ancestry), may not follow this trajectory. This study examined ethnic constancy development in a community which defined ethnicity primarily in terms of changeable features. It was hypothesized that older children would view ethnicity as more changeable than younger children, but that because of personal investment which increases with age, children would view their own ethnicity as more stable than a peer's ethnicity, entailing a significant interaction between age and self-other. Ninety-two children in three age groups (mean ages 7, 9, and 11 years) from a multicultural school in London were interviewed individually. Their ethnicities were 45% Indian, 16% English, 7% Pakistani, 7% Somali, 2% unknown, and 25% other. Children's explanations were analysed thematically. All hypotheses were supported. Children's conceptions of others' ethnicity as changeable were supported by definitions focusing on religion, and by the concept of freedom of choice. This suggests that in a community in which ethnicity is primarily defined in terms of attributes which are seen as mutable (in this case, religion), children may not essentialize ethnicity. Still, ethnic change may rarely occur in practice due to an emotional commitment to one's own ethnic group. Statement of contribution What is already known on this subject? Most research finds that children develop concept of ethnicity as fixed and essential; But limited evidence of non-essentialist developmental pathways for ethnicity For gender, children assert

  1. Awareness Trainings and Detecting Jihadists among Asylum Seekers: A Case Study from the Netherlands

    NARCIS (Netherlands)

    van Wijk, J.; Bolhuis, M.P.

    2017-01-01

    Dutch frontline professionals who work with asylum seekers receive awareness training to assist them in identifying possible signs of jihadist convictions. During these training sessions, they are provided with a complex, ambiguous, and multi-interpretable advice on how to detect such convictions.

  2. 78 FR 40092 - Inviting Rural Business Enterprise Grant Program Applications for Grants To Provide Technical...

    Science.gov (United States)

    2013-07-03

    ... corporate felony convictions and corporate Federal tax delinquencies, applicants that are not delinquent on... result in a zero-point score for that criterion and will impact the overall evaluation of the application... Felony Convictions and Corporate Felony Tax Delinquencies Applications from corporate applicants...

  3. 75 FR 81849 - Office of the Attorney General; Applicability of the Sex Offender Registration and Notification Act

    Science.gov (United States)

    2010-12-29

    ... offender's history of recidivism. Offenders in different tiers are treated differently under SORNA's... on the basis of juvenile delinquency adjudications than on the basis of adult convictions. Juvenile delinquency adjudications count as ``convictions'' that trigger SORNA's requirements only if the juvenile is...

  4. 8 CFR 1003.103 - Immediate suspension and summary disciplinary proceedings; duty of practitioner to notify EOIR of...

    Science.gov (United States)

    2010-01-01

    ... Procedures § 1003.103 Immediate suspension and summary disciplinary proceedings; duty of practitioner to notify EOIR of conviction or discipline. (a) Immediate Suspension— (1) Petition. The EOIR disciplinary... disciplinary proceedings; duty of practitioner to notify EOIR of conviction or discipline. 1003.103 Section...

  5. Dynamics of Indian Ocean Slavery Revealed through Isotopic Data from the Colonial Era Cobern Street Burial Site, Cape Town, South Africa (1750-1827)

    OpenAIRE

    Kootker, Lisette M.; Mbeki, Linda; Morris, Alan G.; Kars, Henk; Davies, Gareth R.

    2016-01-01

    The Dutch East India Company (VOC) intended the Cape of Good Hope to be a refreshment stop for ships travelling between the Netherlands and its eastern colonies. The indigenous Khoisan, however, did not constitute an adequate workforce, therefore the VOC imported slaves from East Africa, Madagascar and Asia to expand the workforce. Cape Town became a cosmopolitan settlement with different categories of people, amongst them a non-European underclass that consisted of slaves, exiles, convicts a...

  6. How jurors use and misuse character evidence.

    Science.gov (United States)

    Hunt, Jennifer S; Budesheim, Thomas Lee

    2004-04-01

    The Federal Rules of Evidence allow defendants to offer testimony about their good character, but that testimony can be impeached with cross-examination or a rebuttal witness. It is assumed that jurors use the defense's character evidence (CE) to form guilt and conviction judgments but use impeachment evidence only to assess the character witness's credibility. Two experiments tested these assumptions by presenting mock jurors with various forms of CE and impeachment. Participants made trait ratings for the character witness and defendant and guilt and conviction judgments. Positive CE did not affect guilt or conviction judgments, but cross-examination caused a backlash in which judgments were harsher than when no CE was given. Using path analysis, the authors tested a model of the process by which CE and impeachment affect defendant and witness impressions and guilt and conviction judgments. Implications for juror decision making are discussed.

  7. Mara River and Associated Wetland as a Refuge of Threatened ...

    African Journals Online (AJOL)

    A study was carried out in Mara River and Lake Kirumi in January/February, 2005 to investigate the importance oJ. the wetland as a refuge site for indigenous cichlids particularly tilapiines which have either disappeared from Lake Victoria or threatened. Fish samples were obtained using experimental gillnets whose ...

  8. Genetic diversity within the genus Cynotilapia and its phylogenetic ...

    African Journals Online (AJOL)

    Cynotilapia's unicuspid teeth, a unique character used to delineate it from all other mbuna genera, leaves evolutionary biologists wondering which is the closest relative to this genus among mbuna cichlids. This genus has only two described species out of the 10-13 species/taxa, whereby the undescribed taxa are either ...

  9. Deviant behavior variety scale: development and validation with a sample of Portuguese adolescents

    Directory of Open Access Journals (Sweden)

    Cristina Sanches

    2016-01-01

    Full Text Available Abstract This study presents the development and analysis of the psychometric properties of the Deviant Behavior Variety Scale (DBVS. Participants were 861 Portuguese adolescents (54 % female, aged between 12 and 19 years old. Two alternative models were tested using Confirmatory Factor Analysis. Although both models showed good fit indexes, the two-factor model didn’t presented discriminant validity. Further results provided evidence for the factorial and the convergent validity of the single-factor structure of the DVBS, which has also shown good internal consistency. Criterion validity was evaluated through the association with related variables, such as age and school failure, as well as the scale’s ability to capture group differences, namely between genders and school retentions, and finally by comparing a sub-group of convicted adolescents with a group of non-convicted ones regarding their engagement in delinquent activities. Overall, the scale presented good psychometric properties, with results supporting that the DBVS is a valid and reliable self-reported measure to evaluate adolescents’ involvement in deviance.

  10. 77 FR 74164 - Submission for OMB Review; Comment Request

    Science.gov (United States)

    2012-12-13

    ... and clearance under the Paperwork Reduction Act of 1995, Public Law 104-13. Comments regarding (a... Collection Request; Representations Regarding Felony Conviction and Tax Delinquent Status for Corporate...), which prevents agencies from doing business with corporations that (1) have been convicted, or had an...

  11. Drinking driver and traffic safety project. Volume 1

    Science.gov (United States)

    1972-05-01

    This is the final report of a four-year study of drinking drivers. On the basis of analyses of over 4,000 cases (approximately 1400 of whom were driver's license applicants who had no convictions for drunk-driving, and the remainder had been convicte...

  12. Die godsdiensneutraliteitsbeginsel van die Amerikaanse demokrasie - implikasie vir onderwys in die RSA

    Directory of Open Access Journals (Sweden)

    J.G. van Staden

    1995-03-01

    Full Text Available The principle of religious neutrality in the American democracy - implications for education in the RSA In a changing, democratic educational dispensation the accommodation of various religious convictions and religious needs of the heterogenous South African population is a matter that has to be dealt with with great circumspection. Valuable lessons that can prevent distress and disruption may be learnt from the way in which the American hyper-democracy has handled the situation. Democracy is the American's predominant pre-occupation. Any attempt of any group (e.g. a religious group to grant a monopoly in state schools to religious values in special learning content and religious ceremonies and practices has always been opposed. This approach has eventually led to total neutrality as regards traditional religious convictions and practices in American state schools, resulting in the establishment of another conviction (secular humanism in state schools. Thus it seems that neutrality as regards religious convictions is not possible. Absolutism of the principle of neutrality as regards traditional religions has resulted in a degeneration of moral values. If all the religious convictions cannot be accommodated in the South African public education system, it may for South Africa, as bastion of Christian civilization, be a danger sign as has been the case in the USA.

  13. Second-to-fourth digit ratio and impulsivity: a comparison between offenders and nonoffenders.

    Science.gov (United States)

    Hanoch, Yaniv; Gummerum, Michaela; Rolison, Jonathan

    2012-01-01

    Personality characteristics, particularly impulsive tendencies, have long been conceived as the primary culprit in delinquent behavior. One crucial question to emerge from this line of work is whether impulsivity has a biological basis. To test this possibility, 44 male offenders and 46 nonoffenders completed the Eysenck Impulsivity Questionnaire, and had their 2D∶4D ratio measured. Offenders exhibited smaller right hand digit ratio measurements compared to non-offenders, but higher impulsivity scores. Both impulsivity and 2D∶4D ratio measurements significantly predicted criminality (offenders vs. nonoffenders). Controlling for education level, the 2D∶4D ratio measurements had remained a significant predictor of criminality, while impulsivity scores no longer predicted criminality significantly. Our data, thus, indicates that impulsivity but not 2D∶4D ratio measurements relate to educational attainment. As offenders varied in their number of previous convictions and the nature of their individual crimes, we also tested for differences in 2D∶4D ratio and impulsivity among offenders. Number of previous convictions did not correlate significantly with the 2D∶4D ratio measurements or impulsivity scores. Our study established a link between a biological marker and impulsivity among offenders (and lack thereof among non-offenders), which emphasise the importance of studying the relationship between biological markers, impulsivity and criminal behavior.

  14. On the dynamics of exploited fish populations

    National Research Council Canada - National Science Library

    Beverton, R. J. H; Holt, Sidney J

    1993-01-01

    ...-brooding cichlids, and viviparity in many sharks and toothcarps. Moreover, fish are of considerable importance to the survival of the human species in the form of nutritious, delicious and diverse food. Rational exploitation and management of our global stocks of fishes must rely upon a detailed and precise insight of their biology. The...

  15. Enigmatic tissue in the orobranchial chamber of cardinalfishes of the ...

    African Journals Online (AJOL)

    An unusual tissue covering the tongue and occasionally part of the gill chamber of many species of the Indo-Pacific cardinalfish genus Siphamia is described and compared with an earlier description of a similar tissue found in the cichlid species Alcolapia grahami inhabiting lakes of the African Rift Valley. Species of both ...

  16. The status of fish diversity and fisheries of the Keta lagoon, Ghana ...

    African Journals Online (AJOL)

    The fish and fisheries of three fish landing sites around the Keta lagoon in Ghana have been studied. A total of 18 fish species belonging to 13 families were encountered in the study. Four of the species were found to be commercially important notably, the cichlids (Tilapia guineensis and Sarotherodon melanotheron), the ...

  17. The price of morality. An analysis of personality, moral behaviour, and social rules in economic terms

    NARCIS (Netherlands)

    Goessling, T.

    2003-01-01

    The focus of the present study was the rationality of moral behaviour and moral conviction. Assumptions like "morality pays" or "good ethics is good business" are not a priori right. Whether morality as personal conviction is also economically rational or not depends in large part on the

  18. 22 CFR 140.6 - Foreign government entities.

    Science.gov (United States)

    2010-04-01

    ... narcotics offense convictions and drug trafficking of proposed assistance recipients under this section and... a narcotics offense or has been engaged in drug trafficking shall be made by the Assistant Secretary... drug trafficking, regardless of whether there has been a conviction. (2) Factors that may support a...

  19. 38 CFR 14.629 - Requirements for accreditation of service organization representatives; agents; and attorneys.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false Requirements for... General Counsel is a final agency action for purposes of review under the Administrative Procedure Act, 5...: Conviction of a felony, conviction of a misdemeanor involving fraud, bribery, deceit, theft, or...

  20. 'Courage of conviction with compassion'.

    Science.gov (United States)

    Haidrani, Layla

    2017-08-30

    What is your job? I am chief executive officer (CEO) of Woking and Sam Beare Hospices, Surrey. The charity delivers specialist palliative care services to more than 1,400 patients and their families across six boroughs, and has recently moved into a brand new state-of-the-art hospice. My role includes the financial and business running of the hospice, along with fundraising, retail, governance and clinical services.

  1. 8 CFR 204.309 - Factors requiring denial of a Form I-800A or Form I-800.

    Science.gov (United States)

    2010-01-01

    ... arrest, conviction, or history of substance abuse, sexual abuse or child abuse, and/or family violence... additional member of the household concerning the arrest, conviction, or history of substance abuse, sexual abuse, child abuse, and/or family violence, or any other criminal history as an offender; the fact that...

  2. Common Purpose Liability versus Joint Enterprise: A Practical View on the ICC's Hierarchy of Liability Theories

    NARCIS (Netherlands)

    Cupido, M.

    2016-01-01

    On 7 March 2014, Trial Chamber II of the International Criminal Court (ICC) convicted Germain Katanga for war crimes and crimes against humanity. Katanga's conviction is based on the concept of common purpose liability as regulated in Article 25(3)(d) of the Rome Statute. This liability theory

  3. (Insecurity in prison

    Directory of Open Access Journals (Sweden)

    Jovanić Goran

    2014-01-01

    Full Text Available The main aim of this research was to determine the level of security deprivation in convicted persons in different types of correctional institutions, and to determine the relation between deprivation and demographic, socio-psychological, criminal and penal characteristics. Another goal of this research was to obtain scientific information about the quality and intensity of security deprivation, as one of the consequences of imprisonment and perception differences of different categories of convicted persons. The sample consisted of 183 male convicts serving their sentence in Correctional institution for juvenile delinquents and young adults in Valjevo, Correctional institution Padinska Skela, Correctional Institution Požarevac, and County prison in Pančevo. The examinees were questioned by means of a general questionnaire for collecting data on the variables related to basic criminal, penal, and socio-psychological information, and by the Scale for testing security deprivation - SIG (Radovanović, 1992, consisting of 34 questions following the principle of the Likert scale (Cronbach's α=0,952. Research results indicate that about 15% of the examinees express low level of deprivation, about 56% increased level, and about 28% high level of deprivation. Security deprivation is significantly related to age (r=0,163; p=0,028, in a way that the level of deprivation increases with age. There is no correlation with other tested independent variables. Such situation raises questions about respecting the rules related to categorization of prisons, placing convicts in prisons, special protection of old people in prison, separating aggressive and dangerous convicts, monitoring their behavior, controlling informal groups of convicts, and similar problems related to imprisonment.

  4. Metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae in Patos lagoon, extreme south of Brazil

    Directory of Open Access Journals (Sweden)

    Gabriela Lopes Rassier

    Full Text Available Abstract This study has evaluated the parasitic fauna of 79 pearl cichlids (Geophagus brasiliensis from the estuary of Patos Lagoon (31° 57' S and 52° 06' W, Rio Grande do Sul, Brazil, during the months of May and June in 2011 and 2012. All the hosts analyzed were infected with at least one species of parasite. A total of eleven metazoa were identified in 459 specimens collected. The trematode Austrodiplostomum compactum (34.2% and ergasilids Ergasilus lizae (32.9% and Gauchergasilus lizae (32.9% were the most prevalent species. The trematodes Thometrema overstreeti and Posthodiplostomum sp. had significantly higher prevalence in fish longer than 20 cm. The sex of the host had no effect on parasite prevalence and abundance. Pearl cichlids are registered as a new host for the trematodes Lobatostoma sp., Homalometron pseudopallidum and Thometrema overstreeti, for the ergasilids Ergasilus lizae and Gauchergasilus euripedesi and for the argulid Argulus spinolosus. The crustacean E. lizae is recorded in Rio Grande do Sul for the first time.

  5. Lower lethal temperatures for nonnative freshwater fishes in Everglades National Park, Florida

    Science.gov (United States)

    Schofield, Pam; Kline, Jeffrey L.

    2018-01-01

    Temperature is an important factor that shapes biogeography and species composition. In southern Florida, the tolerance of nonnative freshwater fishes to low temperatures is a critical factor in delineating their geographic spread. In this study, we provide empirical information on experimentally derived low-temperature tolerance limits of Banded Cichlid Heros severus and Spotfin Spiny Eel Macrognathus siamensis, two nonnative Everglades fishes that were lacking data, and African Jewelfish Hemichromis letourneuxi and Mayan Cichlid Cichlasoma urophthalmus, species for which previous results were derived from studies with small sample sizes. We also provide a literature review summarizing the current state of knowledge of low-temperature tolerances for all 17 nonnative freshwater fishes that have been found in Everglades National Park. Mean lower lethal temperature tolerances ranged from 4°C (Orinoco Sailfin Catfish Pterygoplichthys multiradiatus) to 16.1°C (Butterfly Peacock Bass Cichla ocellaris). These low-temperature limits may inform the understanding of the ecological role or influence of nonnative fishes and may lead to potential management opportunities and applications.

  6. DETERMINING MONOFILAMENT GILLNET OPTIMUM MESH SIZE TO MITIGATE Amphilophus citrinellus POPULATION OUTBREAKS IN IR.H.DJUANDA RESERVOIR

    Directory of Open Access Journals (Sweden)

    Prawira A.R.P. Tampubolon

    2015-12-01

    Full Text Available Gillnet is the most common fishing gear used by fishers in Ir. H. Djuanda Reservoir. Currently, gillnet catches are dominated by midas cichlid (Amphilophus citrinellus which is not the main target catch. To some extent, their presence is even considered intrusive by the fishers. The aim of this study is to reveal the optimum gillnet mesh size in catching this alien species, which in turn can be useful to control the fish population in Ir. H. Djuanda Reservoir. The study was conducted from August 2011 to January 2012. The mesh size of the gillnets were 1, 1.5, 2, 2.5, 3, and 3.5 inches. The total midas cichlid caught were 628 fish which were mostly caught in 1.5 inches sized gillnet. Length first mature fish is 13.31 cm. The optimum size of fish caught in the mesh of 1.5, 2, 2.5, 3, and 3.5 inches are 9.7, 12.9, 16.2, 19.4, and 22.6 cm, respectively.

  7. Multiple Forensic Interviews during Investigations of Child Sexual Abuse: A Cost-Effectiveness Analysis

    Science.gov (United States)

    Block, Stephanie D.; Foster, E. Michael; Pierce, Matthew W.; Berkoff, Molly C.; Runyan, Desmond K.

    2013-01-01

    In suspected child sexual abuse some professionals recommend multiple child interviews to increase the likelihood of disclosure or more details to improve decision-making and increase convictions. We modeled the yield of a policy of routinely conducting multiple child interviews and increased convictions. Our decision tree reflected the path of a…

  8. Theft of virtual items in online multiplayer computer games: an ontological and moral analysis

    NARCIS (Netherlands)

    Strikwerda, Litska

    2012-01-01

    In 2009 Dutch judges convicted several minors for theft of virtual items in the virtual worlds of online multiplayer computer games. From a legal point of view these convictions gave rise to the question whether virtual items should count as “objects” that can be “stolen” under criminal law. This

  9. 8 CFR 1212.3 - Application for the exercise of discretion under former section 212(c).

    Science.gov (United States)

    2010-01-01

    ... April 24, 1996. Section 440(d) of Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA) shall... Effective Death Penalty Act of 1996, with respect to a conviction if the alien pleaded guilty or nolo... 440(d) of the Antiterrorism and Effective Death Penalty Act of 1996, with respect to a conviction if...

  10. Performing “responsibility” and “conspiracy” through press ...

    African Journals Online (AJOL)

    In 2003, the Australian cricketer Shane Warne was suspected and convicted of doping. The purpose of this article was to understand how he tried to resolve the problem/dilemma of being suspected and convicted of doping through three press statements, which he delivered to the media during the 2003 Cricket World Cup ...

  11. Fish as paratenic hosts of Serpinema trispinosum (Leidy, 1852) (Nematoda: Camallanidae).

    Science.gov (United States)

    Moravec, F; Mendoza-Franco, E; Vivas-Rodríguez, C

    1998-04-01

    Third-stage larvae of the nematode Serpinema trispinosum (Leidy, 1852) were collected from the intestine of the freshwater cichlid, Cichlasoma urophthalmus (Günther), from a small lake in Yucatan, Mexico. This is the first record of Serpinema larvae from fishes, and their presence may reflect the importance of fishes as paratenic hosts of turtle parasites in this genus.

  12. Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions

    Directory of Open Access Journals (Sweden)

    Felipe Alonso

    Full Text Available In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840 [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and presents a dominance hierarchy that determines access to breeding territories among males, and to males with territories among females. Gregarious behavior associated with a pale body color, was observed before reproductive behaviors started. Afterwards, a dominance hierarchy was established through aggressive interactions. Territorial individuals had bright body color patterns and non territorial an opaque grey one. Black ventral coloration was associated with reproductive individuals. Courtship displays, which were similar to threatening displays, had the common effect of increasing the visible area of the individual. The dominant male was always the largest one suggesting that size is probably a major factor determining the hierarchy establishment and that these intra-sexually selected traits may have been reinforced by inter-sexual selection. Reproductive males had higher pituitary levels of β-follicle stimulating hormone (β-FSH and somatolactin (SL than non reproductive ones, while no differences were found among females. No differences were found among male gonadosomatic indexes. Non reproductive individuals had higher plasma cortisol levels for both sexes. It is possible that dominant reproductive individuals may be inhibiting reproduction of subordinate fish through physical contact, increasing their cortisol levels and diminishing FSH and SL pituitary content. However, this was not reflected as an inhibition at the gonadal level in our experimental design.

  13. An Analysis of the Death Penalty in Indonesia Criminal Law

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    Eddy Rifai

    2017-07-01

    Full Text Available This research uses normative juridical approach to study on the analysis of the death penalty executions and the legal policy of death executions in Indonesia. There are delays on death executions for the convicted person since they entitled to using rights namely filing a judicial review (PK/Peninjauan Kembali. Furthermore, the legal loophole in the execution of the death penalty by the publication of the Constitutional Court Number 107 / PUU-XIII / 2015 which assert that the Attorney as the executor can ask the convicted person or his family whether to use their rights or not if the convict clearly does not want to use his rights, the executions will be carried out. Legal policy on threats and the implementation of the death penalty in the draft of criminal code was agreed by draftsman of the bill with the solutions. The draftsman of the bill agrees that the death penalty will be an alternative punishment sentenced as a last resort to protect the society. The bill also regulates that the execution among others include that the execution can be delayed by ten years probations. If the public reaction on the convict is not too large or convict has regret and could fix it or the role in the crime is not very important and there is a reason to reduce punishment, the death penalty may be changed. For pregnant women and the mentally ill convicts the execution can only be carried after the birth and the person has recovered from mental illness. The existence of this solutions is still kept putting the death penalty in criminal law, whereas the effectiveness of the death penalty is scientifically still in doubt to solve crimes and to prevent crimes by the death penalty punishment.

  14. Reexamining the frequency range of hearing in silver (Hypophthalmichthys molitrix) and bighead (H. nobilis) carp

    Science.gov (United States)

    Vetter, Brooke J.; Brey, Marybeth; Meninger, Allen F.

    2018-01-01

    Silver (Hypophthalmichthys molitrix) and bighead (H. nobilis) carp (collectively bigheaded carp) are invasive fish that threaten aquatic ecosystems in the upper Midwest United States and the Laurentian Great Lakes. Controlling bigheaded carp is a priority of fisheries managers and one area of focus involves developing acoustic deterrents to prevent upstream migration. For an acoustic deterrent to be effective however, the hearing ability of bigheaded carp must be characterized. A previous study showed that bigheaded carp detected sound up to 3 kHz but this range is narrower than what has been reported for other ostariophysans. Therefore, silver and bighead carp frequency detection was evaluated in response to 100 Hz to 9 kHz using auditory evoked potentials (AEPs). AEPs were recorded from 100 Hz to 5 kHz. The lowest thresholds were at 500 Hz for both species (silver carp threshold: 80.6 ± 3.29 dB re 1 μPa SPLrms, bighead carp threshold: 90.5 ± 5.75 dB re 1 μPa SPLrms; mean ± SD). These results provide fisheries managers with better insight on effective acoustic stimuli for deterrent systems, however, to fully determine bigheaded carp hearing abilities, these results need to be compared with behavioral assessments.

  15. Agonistic and reproductive behaviors in males of red hybrid tilapia, Oreochromis niloticus (Linnaeus, 1758 x O. mossambicus (Peters, 1852 (Osteichthyes: Cichlidae

    Directory of Open Access Journals (Sweden)

    APT Medeiros

    Full Text Available The red hybrid tilapia, Oreochromis niloticus (Linnaeus, 1758 x O. mossambicus (Peters, 1852 is a fertile hybrid used in the semi-intensive level of fish culture in the Northeast of Brazil. It is a territorial cichlid and is highly aggressive towards conspecifics during the breeding season. The purpose of this study was to investigate and describe the aggressive behaviour displayed by the males of this hybrid in non-reproductive and reproductive contexts. Behavioural observations revealed that aggression displayed by the reproductive males of red hybrid tilapia included threatening, undulation, parallel, lateral and frontal attacks, chasing, escape and submission. Possession of a territory influenced male aggressiveness, which was more intense in their own territory than that observed in a neutral situation. The males built nests, irrespective of female presence. All the behavioural patterns were in accordance with those previously described for one parental species, the Nile tilapia, O. niloticus.

  16. Long-term follow-up of exhibitionists: psychological, phallometric, and offense characteristics.

    Science.gov (United States)

    Firestone, Philip; Kingston, Drew A; Wexler, Audrey; Bradford, John M

    2006-01-01

    Exhibitionism has historically been viewed as more of a nuisance than a serious criminal justice matter. Research has demonstrated that the number of exhibitionists who are detected re-offending is a significant under-representation of the number who actually re-offend. The objective of this study was to extend a previous study conducted on exhibitionists, while attempting to solve the limitations described in that study. Two hundred eight exhibitionists were assessed at a university teaching hospital between 1983 and 1996. Archival data were derived from police and medical files. Results indicated that, over a mean follow-up period of 13.24 years, 23.6, 31.3, and 38.9 percent of exhibitionists were charged with or convicted of sexual, violent, or criminal offenses, respectively. Undoubtedly, this is an under-representation of the true rate, as we have no way of knowing how many exhibitionists re-offended and did not get caught. Nevertheless, in the present investigation, sexual recidivists compared with non-recidivists were less educated, scored higher on the Michigan Alcohol Screening Test (MAST), the Psychopathy Checklist, Revised (PCL-R), and the Pedophile Index. Violent recidivists were also less educated and scored higher on the MAST, PCL-R, and the Pedophile Index, and had accumulated a greater number of prior violent or criminal charges and/or convictions. Criminal recidivists were less educated; scored higher on the MAST, Buss-Durkee Hostility Inventory (BDHI), PCL-R, and Pedophile Index; and had accumulated a greater number of prior sexual, violent, and criminal offenses. Finally, the hands-on sexual recidivists accumulated a greater number of prior violent and criminal charges and or convictions than did the hands-off sexual recidivists.

  17. Hábitos alimentarios de las mojarras (Perciformes: Cichlidae de la laguna Caobas, Quintana Roo, México

    Directory of Open Access Journals (Sweden)

    María Teresa Valtierra-Vega

    2000-06-01

    Full Text Available Se estudió la alimentación de siete especies de cíclidos (Archocentrus octofasciatus, A. spilurus, "Cichlasoma" robertsoni , "C." synspilum, "C." urophthalmus , Petenia splendida, Thorichthys meeki en la laguna Caobas, sur de la península de Yucatán. Los muestreos se llevaron a cabo durante las estaciones seca y lluviosa de 1995. Los ejemplares medían menos de 41 mm LP. Se evaluó la frecuencia de aparición y la abundancia de las presas. Los ítemes alimentarios predominantes fueron los quironómidos, ácaros, copépodos, cladóceros y ostrácodos. La mayoría de las mojarras se mostraron zooplanctófagas, con la excepción parcial de P. splendida (piscívora, "C." synspilum y A. spilurus (herbívoras. A. octofasciatus tuvo el más amplio espectro alimentario y se consideró omnívoro. Thorichthys meeki mostró cambios cuantitativos en la dieta por hora del día, talla del pez y estación del año, no así por sexo.Feeding habits of seven cichlid species (Archocentrus octofasciatus, A. spilurus, "Cichlasoma" robertsoni, "C." synspilum, "C." urophthalmus, Petenia splendida, Thorichthys meeki in Lake Caobas, southern Yucatan Peninsula, were studied. Samples were taken with enclosure and cast nets during the dry and rainy seasons of 1995 (day and night. The environment was characterized by measuring temperature, conductivity and pH. All individuals were below 41 mm SL (N=281. Frequency of occurrence and prey abundance were analyzed. Main prey items were chironomids, mites, copepods, cladocerans, and ostracods. The cichlids fed mainly on zooplankton, with the partial exceptions of P. splendida (piscivore, "C." synspilum and A. spilurus (herbivores. A cluster analysis showed that the most similar trophic spectra were those of T. meeki, "C." robertsoni and "C." salvini, which were also the least diverse. "C." synspilum and A. spilurus had an intermediate distance between their diets and those of other species. The species with the most

  18. ‘Let the Punishment Match the Offence’: Determining Sentences for Australian Terrorists

    Directory of Open Access Journals (Sweden)

    Nicola McGarrity

    2013-04-01

    Full Text Available To date, 38 men have been charged with terrorism offences in Australia. Twenty-six have been convicted. The article commences with an overview of the factual circumstances leading to these convictions. This provides important background for the following discussion of a largely unexplored issue in Australian anti-terrorism law and policy, namely, the difficulties faced by the Australian courts in adapting traditional sentencing principles to the (for the most part, preparatory terrorism offences enacted by the Commonwealth Parliament after the 9/11 terrorist attacks. Of particular interest are how the courts determine the objective seriousness of these offences and the respective weight placed upon deterrence (both specific and general and the rehabilitation of convicted terrorists.

  19. Religious Education and the Communal Shaping of a Christian Social Consciousness: The Testimony of César Chávez

    Science.gov (United States)

    Ospino, Hosffman

    2013-01-01

    At the heart of the Christian experience lies the conviction that justice and freedom are essential to build communities where God's love is authentically experienced by all. Such conviction emerges as part of an intentional process of faith formation that begins at home and must be constantly nurtured throughout the life cycle. This article…

  20. A Metabolic Murder Mystery: A Case-Based Experiment for the Undergraduate Biochemistry Laboratory

    Science.gov (United States)

    Childs-Disney, Jessica L.; Kauffmann, Andrew D.; Poplawski, Shane G.; Lysiak, Daniel R.; Stewart, Robert J.; Arcadi, Jane K.; Dinan, Frank J.

    2010-01-01

    In 1990, a woman was wrongly convicted of poisoning her infant son and was sentenced to life in prison. Her conviction was based on laboratory work that wrongly identified ethylene glycol as present in her son's blood and in the formula he drank prior to his death. The actual cause of the infant's death, a metabolic disease, was eventually…

  1. Teachers' perceptions of academic failure: Is it worth to bother about unsuccesful pupils?

    Directory of Open Access Journals (Sweden)

    Malinić Dušica

    2015-01-01

    Full Text Available We analyzed the convictions of the teachers about scholastic failure and their perception of the activities they use in work with unsuccessful pupils. The theoretical basis for our research was the belief that there is a connection between the teacher's convictions and their everyday practices. The aim was to examine: 1 the teachers' convictions about the nature of academic failure, traits of the failing students, adequacy of after-class sessions and group work in overcoming the problem of academic failure, and 2 the teachers' perception of their own responsibility and engagement in supporting failing pupils. A set of parametric statistical techniques was used to analyze the responses of 1441 elementary-school teachers to the items related to academic failure in the questionnaire about current school problems. The results show that 1 the teachers have optimistic convictions about cognitive abilities of failing pupils and see after-class sessions as a good opportunity to work with them; they state that 2 they additionally prepare classes for work with failing pupils and stimulate them during regular classes and believe that failing pupils are successful in outdoor activities; 3 they have no definite opinion about the role of the teacher and adequacy of group work in overcoming the problem. The concluding observations stress the need for a detailed analysis of the activities based on the teacher's convictions about academic failure and support to failing pupils.

  2. Neurodevelopmental marker for limbic maldevelopment in antisocial personality disorder and psychopathy.

    Science.gov (United States)

    Raine, Adrian; Lee, Lydia; Yang, Yaling; Colletti, Patrick

    2010-09-01

    Antisocial personality disorder and psychopathy have been hypothesised to have a neurodevelopmental basis, but this proposition has not been formally tested. This study tests the hypothesis that individuals with cavum septum pellucidum (CSP), a marker of limbic neural maldevelopment, will show higher levels of psychopathy and antisocial personality. Cavum septum pellucidum was assessed using anatomical magnetic resonance imaging in a community sample. Those with CSP (n = 19) were compared with those lacking CSP (n = 68) on antisocial personality, psychopathy and criminal offending. Those with CSP had significantly higher levels of antisocial personality, psychopathy, arrests and convictions compared with controls. The pervasiveness of this association was indicated by the fact that those lacking a diagnosis of antisocial personality disorder, but who were charged or convicted for an offence, had a more extensive CSP than non-antisocial controls. Results could not be attributed to prior trauma exposure, head injury, demographic factors or comorbid psychiatric conditions. Our findings appear to be the first to provide evidence for a neurodevelopmental brain abnormality in those with antisocial personality disorder and psychopathy, and support the hypothesis that early maldevelopment of limbic and septal structures predisposes to the spectrum of antisocial behaviours.

  3. Persistence of addictive disorders in a first-offender driving while impaired population.

    Science.gov (United States)

    Lapham, Sandra C; Stout, Robert; Laxton, Georgia; Skipper, Betty J

    2011-11-01

    We compared the prevalence of alcohol use and other psychiatric disorders in offenders 15 years after a first conviction for driving while impaired with a general population sample. To determine whether high rates of addictive and other psychiatric disorders previously demonstrated in this sample remain disproportionately higher compared with a matched general population sample. Point-in-time cohort study. Pacific Institute for Research and Evaluation, Albuquerque, New Mexico. We interviewed convicted first offenders using the Composite International Diagnostic Interview 15 years after referral to a screening program in Bernalillo County, New Mexico. We calculated rates of diagnoses for non-Hispanic white and Hispanic women (n = 362) and men (n = 220) adjusting for missing data using multiple imputation and compared psychiatric diagnoses with findings from the National Comorbidity Survey Replication by sex and Hispanic ethnicity. Eleven percent of non-Hispanic white women and 12.8% of Hispanic women in the driving while impaired sample reported 12-month alcohol abuse or dependence, compared with 1.0% and 1.8%, respectively, in the National Comorbidity Survey Replication (comparison) sample. Almost 12% of non-Hispanic white men and 17.5% of Hispanic men in the driving while impaired sample reported 12-month alcohol abuse or dependence, compared with to 2.0% and 1.8%, respectively, in the comparison sample. These differences were statistically significant. Rates of drug use disorders and nicotine dependence were also elevated compared with the general population sample, while rates of major depressive disorder and posttraumatic stress disorder were similar. In this sample, high rates of addictive disorders persisted over 10 years among first offenders and greatly exceeded those found in a general population sample.

  4. Threatened fishes of the world: Coptodon walteri (Thys van den Audenaerde 1968 (Perciformes: Cichlidae

    Directory of Open Access Journals (Sweden)

    Konan Felix Koffi

    2016-06-01

    Full Text Available Coptodon walteri Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed of the Cavally River. There is an immediate need for developing conservation and management plans for this species.

  5. Proof of patient information: Analysis of 201 judicial decisions.

    Science.gov (United States)

    Dugleux, E; Rached, H; Rougé-Maillart, C

    2018-05-01

    The ruling by the French Court of Cassation dated February 25, 1997 obliged doctors to provide proof of the information given to patients, reversing more than half a century of case law. In October 1997, it was specified that such evidence could be provided by "all means", including presumption. No hierarchy in respect of means of proof has been defined by case law or legislation. The present study analyzed judicial decisions with a view to determining the means of proof liable to carry the most weight in a suit for failure to provide due patient information. A retrospective qualitative study was conducted for the period from January 2010 to December 2015, by a search on the LexisNexis ® JurisClasseur website. Two hundred and one judicial decisions relating to failure to provide due patient information were selected and analyzed to study the characteristics of the practitioners involved, the content of the information at issue and the means of proof provided. The resulting cohort of practitioners was compared with the medical demographic atlas of the French Order of Medicine, considered as exhaustive. Two hundred and one practitioners were investigated for failure to provide information: 45 medical practitioners (22±3%), and 156 surgeons (78±3%) including 45 orthopedic surgeons (29±3.6% of surgeons). Hundred and ninety-three were private sector (96±1.3%) and 8 public sector (4±1.3%). Hundred and one surgeons (65±3.8% of surgeons), and 26 medical practitioners (58±7.4%) were convicted. Twenty-five of the 45 orthopedic surgeons were convicted (55±7.5%). There was no significant difference in conviction rates between surgeons and medical practitioners: odds ratio, 1.339916; 95% CI [0.6393982; 2.7753764] (Chi 2 test: p=0.49). Ninety-two practitioners based their defense on a single means of proof, and 74 of these were convicted (80±4.2%). Forty practitioners based their defense on several means of proof, and 16 of these were convicted (40±7.8%). There was

  6. Legal constraints imposed on security force personnel

    International Nuclear Information System (INIS)

    Cadwell, J.J.

    1983-01-01

    It is argued that the penalty for most mistakes made by security is the payment of money by the utility. The security personnel has only to act reasonably and not in a negligent manner. Preventing of sabotage is more important than obtaining a conviction, so it is better to search and not get a conviction than it is not to search

  7. Legal constraints imposed on security force personnel

    Energy Technology Data Exchange (ETDEWEB)

    Cadwell, J.J.

    1983-01-01

    It is argued that the penalty for most mistakes made by security is the payment of money by the utility. The security personnel has only to act reasonably and not in a negligent manner. Preventing of sabotage is more important than obtaining a conviction, so it is better to search and not get a conviction than it is not to search. (DLC)

  8. Systematic lymphadenectomy versus sampling of ipsilateral mediastinal lymph-nodes during lobectomy for non-small-cell lung cancer: a systematic review of randomized trials and a meta-analysis.

    Science.gov (United States)

    Mokhles, Sahar; Macbeth, Fergus; Treasure, Tom; Younes, Riad N; Rintoul, Robert C; Fiorentino, Francesca; Bogers, Ad J J C; Takkenberg, Johanna J M

    2017-06-01

    To re-examine the evidence for recommendations for complete dissection versus sampling of ipsilateral mediastinal lymph nodes during lobectomy for cancer. We searched for randomized trials of systematic mediastinal lymphadenectomy versus mediastinal sampling. We performed a textual analysis of the authors' own starting assumptions and conclusion. We analysed the trial designs and risk of bias. We extracted data on early mortality, perioperative complications, overall survival, local recurrence and distant recurrence for meta-analysis. We found five randomized controlled trials recruiting 1980 patients spanning 1989-2007. The expressed starting position in 3/5 studies was a conviction that systematic dissection was effective. Long-term survival was better with lymphadenectomy compared with sampling (Hazard Ratio 0.78; 95% CI 0.69-0.89) as was perioperative survival (Odds Ratio 0.59; 95% CI 0.25-1.36, non-significant). But there was an overall high risk of bias and a lack of intention to treat analysis. There were higher rates (non-significant) of perioperative complications including bleeding, chylothorax and recurrent nerve palsy with lymphadenectomy. The high risk of bias in these trials makes the overall conclusion insecure. The finding of clinically important surgically related morbidities but lower perioperative mortality with lymphadenectomy seems inconsistent. The multiple variables in patients, cancers and available treatments suggest that large pragmatic multicentre trials, testing currently available strategies, are the best way to find out which are more effective. The number of patients affected with lung cancer makes trials feasible. © The Author 2017. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

  9. Improving risk assessment in schizophrenia: epidemiological investigation of criminal history factors.

    Science.gov (United States)

    Witt, Katrina; Lichtenstein, Paul; Fazel, Seena

    2015-05-01

    Violence risk assessment in schizophrenia relies heavily on criminal history factors. To investigate which criminal history factors are most strongly associated with violent crime in schizophrenia. A total of 13 806 individuals (8891 men and 4915 women) with two or more hospital admissions for schizophrenia were followed up for violent convictions. Multivariate hazard ratios for 15 criminal history factors included in different risk assessment tools were calculated. The incremental predictive validity of these factors was estimated using tests of discrimination, calibration and reclassification. Over a mean follow-up of 12.0 years, 17.3% of men (n = 1535) and 5.7% of women (n = 281) were convicted of a violent offence. Criminal history factors most strongly associated with subsequent violence for both men and women were a previous conviction for a violent offence; for assault, illegal threats and/or intimidation; and imprisonment. However, only a previous conviction for a violent offence was associated with incremental predictive validity in both genders following adjustment for young age and comorbid substance use disorder. Clinical and actuarial approaches to assess violence risk can be improved if included risk factors are tested using multiple measures of performance. © The Royal College of Psychiatrists 2015.

  10. Relevance of medical reports in criminal investigations of cases of suspected child abuse.

    Science.gov (United States)

    Janßen, Katharina; Greif, Dominik; Rothschild, Markus A; Banaschak, Sibylle

    2017-07-01

    If a case of physical child abuse is suspected in Germany, the general feeling is often that "it does not matter whether you make a report or not" because, generally, no conviction is made anyway. This study investigates the juridical analysis of complaint cases of physical child abuse [criminal complaint parag. 225 StGB (German penal code) with filial victim]. It focuses on the doctor's role and the impact of their practice in relation to a later conviction. It is based on the analysis of 302 files of the enquiry from 2004-2009 from the department of public prosecution in Cologne, Germany. Besides general epidemiological data on the reporting person, the affected child and the presumed offender, the documents were reassessed for the relevance of medical reports for successful convictions. Only 7% (n = 21) of 302 complaints led to a conviction. In 38.1% (n = 8) of those cases, a medical report was mentioned as a piece of evidence, and just in two cases a (legal) medical report was quoted and mentioned as relevant for the conviction. 50% of the complaint cases with legal medical expertise led to a trial. In contrast, only 30.2% with a common medical report and 7.3% without a report led to a trial. The results show how a medical report existed in only a few cases. In those cases, the rate of performed trials was higher than for those without a medical report, but the report played a minor part when reasoning a verdict.

  11. Criminality in men with Klinefelter's syndrome and XYY syndrome: a cohort study.

    Science.gov (United States)

    Stochholm, Kirstine; Bojesen, Anders; Jensen, Anne Skakkebæk; Juul, Svend; Gravholt, Claus Højbjerg

    2012-01-01

    To investigate the criminal pattern in men between 15 and 70 years of age diagnosed with 47,XXY (Klinefelter's syndrome (KS)) or 47,XYY compared to the general population. Register-based cohort study comparing the incidence of convictions among men with KS and with 47,XYY with age- and calendar-matched samples of the general population. Crime was classified into eight types (sexual abuse, homicide, burglary, violence, traffic, drug-related, arson and 'others'). Denmark 1978-2006. All men diagnosed with KS (N=934) or 47,XYY (N=161) at risk and their age- and calendar-time-matched controls (N=88 979 and 15 356, respectively). The incidence of convictions was increased in men with KS (omitting traffic offenses) compared to controls with a HR of 1.40 (95% CI 1.23 to 1.59, pXYY compared to controls with a HR of 1.42 (95% CI 1.14 to 1.77, pcrime types, except drug-related crimes and traffic. Adjusting for socioeconomic variables (education, fatherhood, retirement and cohabitation) reduced the total HR for both KS and 47,XYY to levels similar to controls, while some specific crime types (sexual abuse, arson, etc) remained increased. The overall risk of conviction (excluding traffic offenses) was moderately increased in men with 47,XYY or KS; however, it was similar to controls when adjusting for socioeconomic parameters. Convictions for sexual abuse, burglary, arson and 'others' were significantly increased. The increased risk of convictions may be partly or fully explained by the poor socioeconomic conditions related to the chromosome aberrations.

  12. Neurotechnological Behavioural Treatment of Criminal Offenders

    DEFF Research Database (Denmark)

    Ryberg, Jesper; Petersen, Thomas Søbirk

    2013-01-01

    at the behaviour for which the criminal is convicted. In this article it is argued that Bomann-Larsen's analysis of the morality of offers does not provide a solid base for this conclusion and that, even if the analysis is assumed to be correct, it still does not follow that voluntary rehabilitation schemes...... targeting behaviour beyond the act for which a criminal is convicted are inappropriate....

  13. Reactivity of Acetylcholine Esterase in inner Ear Maculae of Fish after Development at Hypergravity

    Science.gov (United States)

    Feucht, I.; Hilbig, R.; Anken, R.

    It has been shown earlier that the growth of inner ear otoliths of larval fish is (among other environmental factors) guided by the gravity vector. This guidance most probably is effected by the efferent vestibular system in the brainstem, because a transection of the nervus vestibularis has been shown to effect a cessation of the supply of calcium to the otoliths. The efferent innervation of fish inner ear maculae uses the synaptic transmitter acetylcholine (ACh). Therefore, we were - in order to further assess the role of the efferent system for otolith growth - prompted to determine ACh esterase-reactivity in the sensory epithelium of the utricle and the saccule (as well as in a non-gravity relevant brain region for control) in larval cichlid fish (Oreochromis mossambicus), which had been maintained at hypergravity during their development. The respective data will be communicated at the meeting. Acknowledgement: This work was financially supported by the German Aerospace Center (DLR) (FKZ: 50 WB 9997).

  14. Penitentiary Resocialization – three conditionings of the process

    Directory of Open Access Journals (Sweden)

    Henryk Machel

    2011-12-01

    Full Text Available Penitentiary resocialization, its form, content, organization and effectiveness depends on many conditionings. Among the most important are: the penitentiary system which makes the general decisions, conditions characteristic for the particular penitentiary, including social conditions of the prison and the human material (convicts’ community which as a subject are both within the scope of interest of those conducting the resocialization and are included in the penitentiary treatment. The goal of this treatment is to yield the expected effectiveness of resocialization. That is why the penitentiary system which is the most important to produce the expected effect has to take many conditionings under consideration and, foremost, factors characteristic for the particular penitentiary and the human material (convicts’ community which is the subject of penitentiary treatment. As many research show the nature of the penitentiary doesn’t work in favour of the process of resocialization. The interaction of conflict, the subculture of the penitentiary and other factors, including troubles of penitentiary isolation, often occurring disorders between the prisoner and his family or his close relatives amount to the reduction in the influence of the resocialization. Another of the three important conditionings described here that stymie the process are certain categories of prisoners. The subject in question are the ones addicted to alcohol and drugs, showing non-psychotic personality disorders, psychopaths and those connected with organized crime, kidnappers, assassins and hit-men and terrorists. Separate category of convicts who are hard to resocialize are those convicted of sexual offences, including paedophiles. So far no effective psycho-correction methods have been formed, especially for paedophiles. Certain difficulties are also experienced when dealing with long-term convicts: sentenced for 25 years or lifetime – sometimes it is not clear

  15. Sexual offending runs in families: A 37-year nationwide study.

    Science.gov (United States)

    Långström, Niklas; Babchishin, Kelly M; Fazel, Seena; Lichtenstein, Paul; Frisell, Thomas

    2015-04-01

    Sexual crime is an important public health concern. The possible causes of sexual aggression, however, remain uncertain. We examined familial aggregation and the contribution of genetic and environmental factors to sexual crime by linking longitudinal, nationwide Swedish crime and multigenerational family registers. We included all men convicted of any sexual offence (N = 21,566), specifically rape of an adult (N = 6131) and child molestation (N = 4465), from 1973 to 2009. Sexual crime rates among fathers and brothers of sexual offenders were compared with corresponding rates in fathers and brothers of age-matched population control men without sexual crime convictions. We also modelled the relative influence of genetic and environmental factors to the liability of sexual offending. We found strong familial aggregation of sexual crime [odds ratio (OR) = 5.1, 95% confidence interval (CI) = 4.5-5.9] among full brothers of convicted sexual offenders. Familial aggregation was lower in father-son dyads (OR = 3.7, 95% CI = 3.2-4.4) among paternal half-brothers (OR = 2.1, 95% CI = 1.5-2.9) and maternal half-brothers (OR = 1.7, 95% CI = 1.2-2.4). Statistical modelling of the strength and patterns of familial aggregation suggested that genetic factors (40%) and non-shared environmental factors (58%) explained the liability to offend sexually more than shared environmental influences (2%). Further, genetic effects tended to be weaker for rape of an adult (19%) than for child molestation (46%). We report strong evidence of familial clustering of sexual offending, primarily accounted for by genes rather than shared environmental influences. Future research should possibly test the effectiveness of selective prevention efforts for male first-degree relatives of sexually aggressive individuals, and consider familial risk in sexual violence risk assessment.

  16. Epicellular Apicomplexans: Parasites “On the Way In”

    Czech Academy of Sciences Publication Activity Database

    Bartošová-Sojková, Pavla; Oppenheim, R.D.; Soldati-Favre, D.; Lukeš, Julius

    2015-01-01

    Roč. 11, č. 9 (2015), e1005080 E-ISSN 1553-7374 R&D Projects: GA ČR GAP305/12/2261; GA ČR GBP505/12/G112; GA MŠk LH12104 EU Projects: European Commission(XE) 316304 Institutional support: RVO:60077344 Keywords : host cell * cichlid fish * life cycle Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 7.003, year: 2015

  17. PRISON EDUCATION IN POLAND: SPECIFICS AND CHALLENGES

    Directory of Open Access Journals (Sweden)

    Daria Becker-Pestka

    2017-04-01

    Full Text Available The problems presented in the text refer to the education of convicts in Poland. It has been based on current Polish legal regulations, statistical data and specialist literature. The problems which refer to the education of convicts in Poland are regulated by the Act of 6th June 1997, the Executive Penal Code, the Act on the Education System and executive acts to the above-mentioned regulations. The current situation in the labour market requires people to acquire education and to improve their qualifications. People without education, who are excluded from the access to professional development and in-service training, find themselves in an extremely difficult situation. The lack of qualification and vocational skills usually leads to exclusion from the labour market. People who serve their sentences in prisons find themselves in a particularly difficult situation, because their lack of education may push them back into crime. A very positive tendency that may be observed in Poland is a growing demand for prison education. Convicts may acquire knowledge and raise their qualifications at various levels and in various fields. They may follow the curricula at the level of a primary or secondary school; they may pass their Matura certificate and, after the consent of relevant authorities, they can continue their education at the university level. Convicts may also learn a new profession, change their professional qualifications or acquire new additional skills during specialist courses. The qualifications acquired in this way shall meet current demand in the labour market, and convicts may find employment after they leave prisons. Education allows them to improve their self-esteem and self-reliance, to catch up with any deficiencies and to work on their self-discipline. At the same time, education offers opportunities to expand knowledge, to return to the society and to the labour market. It is important for convicts to obtain opportunities for

  18. Non-typical Quantity of Financial Crimes%论金融犯罪中的罪数不典型

    Institute of Scientific and Technical Information of China (English)

    王韬

    2011-01-01

    According to Article 196(3) "Whoever steals a credit card and uses it shall be convicted and punished in accordance with the provisions in Article 264 of this Law.",such act belongs to imaginative joinder of offenses.In Article 171(3) applies to assimilating instead of implicating crime.But whoever forges or alters treasury certificates or any other negotiable securities issued by the State,and commits fraud with the forged negotiable securities shall be convicted as implicated offence,the implication of purposeful behavior and means behavior.Article 197 is actually concerning the implication and coincidence of articles,rather than combinative crime.Moreover,it deserves reconsideration that crimes worth heavier punishment is taken as implicated crimes.%《刑法》第196条第3款规定的"盗窃信用卡并使用的,依照本法第264条规定定罪处罚"属于想象竞合犯。《刑法》第171条第3款属于吸收犯的情况,不属于牵连关系。行为人自己伪造、变造国库券或者国家发行的其他有价证券,然后用自己伪造的有价证券进行诈骗活动的,应成立牵连犯,属于目的行为和手段行为的牵连。《刑法》第197条的规定实质上是一个牵连关系和一个法条竞合关系,而不是结合犯。另外,将从重情节也理解为结合犯的观点是值得商榷的。

  19. Fiction and Conviction | Blackburn | Philosophical Papers

    African Journals Online (AJOL)

    I claim that there is nothing so unusual in the interleaving of myth or fiction and history that Williams finds in Herodotus. I also reflect on the difficulty of separating acceptance of truth from acceptance of myth, metaphor, and model, not only in history but also in science. Philosophical Papers Vol.32(3) 2003: 243-260 ...

  20. Understanding Masculinity Ideology in Convicted Rapists

    OpenAIRE

    Pandey, Madhumita

    2016-01-01

    While violence against women has gained prominence in India, there is still a dearth of literature addressing these issues in the society. Amongst available research, the focus has primarily been on victims; judiciary and policing systems while, there are minimum efforts in understanding the alleged offenders. Masculinity originally emerged as concept opposite to femininity (Constantinople, 1973), was later developed into an independent personality characteristic (Bem, 1974) and is now being ...

  1. PARAMETER POPULASI IKAN LOHAN (Cichlasoma trimaculatum, Günther 1867 DI WADUK SEMPOR, JAWA TENGAH

    Directory of Open Access Journals (Sweden)

    Dimas Angga Hedianto

    2016-03-01

    Full Text Available Waduk Sempor di Kabupaten Kebumen, Jawa Tengah dengan luas 270 ha merupakan waduk serbaguna yang berfungsi untuk pembangkit listrik tenaga air (PLTA, pariwisata, irigasi dan perikanan. Aktivitas perikanan yang berkembang di waduk ini adalah perikanan tangkap meskipun saat ini mengalami penurunan sebagai akibat dari berkurangnya hasil tangkapan ikan ekonomis yang digantikan oleh jenis ikan asing invasif yang bernilai ekonomis rendah. Jenis ikan asing invasif yang mendominasi adalah ikan lohan (Cichlasoma trimaculatum, Günther, 1867. Tujuan penelitian ini adalah untuk mengkaji beberapa parameter populasi yakni hubungan panjang berat, parameter pertumbuhan, mortalitas dan laju eksploitasi ikan lohan di Waduk Sempor. Pengambilan sampel ikan lohan dilakukan menggunakan alat tangkap jaring insang berbagai ukuran mata jaring selama periode Maret sampai Desember 2012. Sebanyak 1.962 ekor sampel ikan lohan yang tertangkap dianalisis untuk menghitung parameter populasinya. Estimasi parameter pertumbuhan, mortalitas dan laju eksploitasi dihitung menggunakan paket program FiSAT II. Hasil penelitian menunjukkan bahwa pola pertumbuhan ikan lohan bersifat isometrik dengan estimasi parameter pertumbuhan sebagai berikut: L∞ = 20,5 cmTL, K = 0,37 tahun-1, to = -0,4955 tahun dan tmax = 8,11 tahun. Laju mortalitas total (Z sebesar 1,29 tahun-1, mortalitas alami (M sebesar 1,05 tahun-1, mortalitas penangkapan (F sebesar 0,24 tahun-1 dengan laju eksploitasi (E sebesar 0,18 yang menunjukkan laju eksploitasi yang rendah. Sempor reservoir at Kebumen Regency, Central Java with a waters surface area of 270 ha is a multi-purpose reservoir for hydroelectric power generation, tourism, irrigation and fisheries. Currently, capture fisheries activity developed in the reservoir tend to decrease as a result of decreasing economical fish yield which was replaced by invasive alien species of low economic value. The dominant invasive alien species catches was three spot cichlid

  2. “They Know, But Do Not Tell”: Examining the Link Between Animal Cruelty and Other Criminal Offences in British Columbia

    OpenAIRE

    Hinz, Jessica Marie

    2016-01-01

    Animal cruelty is a significantly under researched topic in Criminology. An exploratory study was undertaken to determine whether there is a link between cruelty offences and other crimes in British Columbia (BC). Data were compiled using open source websites to identify convicted animal cruelty offenders and examine any further criminal convictions. Using the frameworks of the graduation hypothesis and generalized deviance theory, criminal offending patterns and timing of offences were analy...

  3. THE POTENTIAL AND LIMITATIONS OF TRUTH AND RECONCILIATION COMMISSIONS IN GENERATING JUDICIAL AND NON-JUDICIAL EFFECTS. THE PRESIDENTIAL COMMISSION FOR THE ANALYSIS OF THE COMMUNIST DICTATORSHIP IN ROMANIA.

    Directory of Open Access Journals (Sweden)

    Bianca Elena RADU

    2017-05-01

    Full Text Available The transition periods that succeed totalitarian regimes are characterized by the efforts of new governments to recognize the violations of human rights that were committed in the past, to implement legitimate mechanisms to clarify the causes but also the consequences of the violation of human rights by the previous regimes, both at the individual and community level. The truth commissions represent one of these mechanisms, concentrating on the testimonies of the victims and on the recognition of their suffering. Depending on the case, the recommendations of the truth commissions have the role of generating judicial and non-judicial effects, of contributing and completing the bringing into effect of the penal justice, of facilitating the processes of restoration, of preventing the re-iteration of new abuses. The present paper proposes to analyse the limitations and the transformative potential of the recommendations included in the report done by the Presidential Commission for the analysis of the communist dictatorship in Romania. We will analyse whether the information contained in this report has been useful in the judicial procedures (prosecutorial indictment and judges’ motivation which resulted in the conviction of Ioan Ficior and Alexandru Vișinescu, but also on other two civil sentences. The research approach imposes the use of a content analysis of the official and public documents, a comparative analysis and a historic analysis.

  4. Reduced host-specificity in a parasite infecting non-littoral Lake Tanganyika cichlids evidenced by intraspecific morphological and genetic diversity

    Czech Academy of Sciences Publication Activity Database

    Kmentová, N.; Gelnar, M.; Mendlová, M.; Van Steenberge, M.; Koblmüller, Stephan; Vanhove, M. P. M.

    2016-01-01

    Roč. 6, č. 39605 (2016), č. článku 39605. ISSN 2045-2322 R&D Projects: GA ČR(CZ) GBP505/12/G112 Institutional support: RVO:68081766 Keywords : Monogenean parasites * Ancyrocephalidae * adaptive radiation * statistical tests * population growth * DNA polymorphism * fish families * Teleostei * phylogeny Subject RIV: EG - Zoology Impact factor: 4.259, year: 2016

  5. Self-governance, control and loss of control amongst drink-drivers

    DEFF Research Database (Denmark)

    Järvinen, Margaretha; Fynbo, Lars

    2011-01-01

    This paper analyses driving under the influence of alcohol and drugs (DUI) from a governmentality perspective. The paper is based on qualitative interviews with 25 persons, convicted of drink-driving and at the time of the interviews participating in Alcohol/Traffic courses in Denmark (mandatory...... feelings of control loss; and occasional drinkers or drug users with limited experience of drink-driving. The paper analyses drink-driving as a form of “failed self-governance” and shows how some of the convicted drink-drivers negotiate quilt and blame by either justifying their DUI (they were “in full...... courses for DUI-convicted people). Four drink-driver profiles are identified: regular heavy drinkers who regard themselves as addicted; regular drinkers who claim they are in control of both their alcohol use and their drink-driving; occasional multi-substance users who associate their DUI with strong...

  6. Biogeography of the Mesoamerican Cichlidae (Teleostei: Heroini): Colonization through the GAARlandia land bridge and early diversification

    OpenAIRE

    Rica, Olrich; Piálek, Lubomír.; Zardoya, Rafael; Doadrio, Ignacio; Zrzavý, Jan

    2012-01-01

    Aim: We present a molecular phylogenetic and biogeographical analysis of the Mesoamerican cichlid fishes (Cichlidae: Cichlasomatinae: Heroini), a dominant part of the freshwater biodiversity of the region. Based on these analyses we investigate the spatial and temporal origins and diversification of the group. Location: Mesoamerica. Methods: Model-based phylogenetic methods (MrBayes) using seven molecular markers with a virtually complete species-level taxon sampling, together with the Bayesi...

  7. Neurodevelopmental marker for limbic maldevelopment in antisocial personality disorder and psychopathy

    Science.gov (United States)

    Raine, Adrian; Lee, Lydia; Yang, Yaling; Colletti, Patrick

    2010-01-01

    Background Antisocial personality disorder and psychopathy have been hypothesised to have a neurodevelopmental basis, but this proposition has not been formally tested. Aims This study tests the hypothesis that individuals with cavum septum pellucidum (CSP), a marker of limbic neural maldevelopment, will show higher levels of psychopathy and antisocial personality. Method Cavum septum pellucidum was assessed using anatomical magnetic resonance imaging in a community sample. Those with CSP (n = 19) were compared with those lacking CSP (n = 68) on antisocial personality, psychopathy and criminal offending. Results Those with CSP had significantly higher levels of antisocial personality, psychopathy, arrests and convictions compared with controls. The pervasiveness of this association was indicated by the fact that those lacking a diagnosis of antisocial personality disorder, but who were charged or convicted for an offence, had a more extensive CSP than non-antisocial controls. Results could not be attributed to prior trauma exposure, head injury, demographic factors or comorbid psychiatric conditions. Conclusions Our findings appear to be the first to provide evidence for a neurodevelopmental brain abnormality in those with antisocial personality disorder and psychopathy, and support the hypothesis that early maldevelopment of limbic and septal structures predisposes to the spectrum of antisocial behaviours. PMID:20807962

  8. Minnesota multiphasic personality inventory-2-restructured form (MMPI-2-RF) predictors of violating probation after felonious crimes.

    Science.gov (United States)

    Tarescavage, Anthony M; Luna-Jones, Lynn; Ben-Porath, Yossef S

    2014-12-01

    We compared Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) scores of 25 individuals convicted of felonies who violated probation within 1 year of sentencing with those of 45 similarly sentenced defendants who completed probation successfully. The sample (51 males, 19 females) ranged in age from 18 to 81 years (M = 35.2, SD = 13.8) and had 8 to 16 years of education (M = 11.7, SD = 2.1). The majority were Caucasian (85.7%), but African Americans were also represented (14.3%). Individuals in the sample were primarily convicted of mid-level felonies (F-1: 2.9%; F-2: 14.3%; F-3: 22.9%; F-4: 31.4%; F-5: 12.9%). As hypothesized, moderate to large statistically significant differences between probation completers and violators were found on several MMPI-2-RF scales, including Behavioral/Externalizing Dysfunction, Antisocial Behavior, Juvenile Conduct Problems, Substance Abuse, Aggression, Activation, and Disconstraint. Relative risk ratio analyses indicated that probationers who produced elevated scores on these scales were up to 3 times more likely to violate probation than were those with non-elevated scores. Implications of these results and limitations of our findings are discussed. (c) 2014 APA, all rights reserved.

  9. Violent crime runs in families: a total population study of 12.5 million individuals.

    Science.gov (United States)

    Frisell, T; Lichtenstein, P; Långström, N

    2011-01-01

    Etiological theory and prior research with small or selected samples suggest that interpersonal violence clusters in families. However, the strength and pattern of this aggregation remains mostly unknown. We investigated all convictions for violent crime in Sweden 1973-2004 among more than 12.5 million individuals in the nationwide Multi-Generation Register, and compared rates of violent convictions among relatives of violent individuals with relatives of matched, non-violent controls, using a nested case-control design. We found strong familial aggregation of interpersonal violence among first-degree relatives [e.g. odds ratio (OR)sibling 4.3, 95% confidence interval (CI) 4.2-4.3], lower for more distant relatives (e.g. OR cousin 1.9, 95% CI 1.9-1.9). Risk patterns across biological and adoptive relations provided evidence for both genetic and environmental influences on the development of violent behavior. Familial risks were stronger among women, in higher socio-economic strata, and for early onset interpersonal violence. There were crime-specific effects (e.g. OR sibling for arson 22.4, 95% CI 12.2-41.2), suggesting both general and subtype-specific familial risk factors for violent behavior. The observed familiality should be accounted for in criminological research, applied violence risk assessment, and prevention efforts.

  10. The effects of collateral consequences of criminal involvement on employment, use of Temporary Assistance for Needy Families, and health

    OpenAIRE

    Sheely, Amanda; Kneipp, Shawn M.

    2015-01-01

    Criminal convictions are often associated with collateral consequences that limit access to the forms of employment and social services on which disadvantaged women most frequently rely – regardless of the severity of the offense. These consequences may play an important role in perpetuating health disparities by socioeconomic status and gender. We examined the extent to which research studies to date have assessed whether a criminal conviction might influence women’s health by limiting acces...

  11. Ethical dimensions in assessing technical risks

    International Nuclear Information System (INIS)

    Birnbacher, D.

    1991-01-01

    Contrary to the present tendency of partially impact-independent technology assessment, the author does not see a difference between a risk-benefit analysis and an ethical technology assessment. As long as the risk-benefit analysis is truly comprehensive, both fall together. This does not mean that convictions of those who have their doubts about some new technologies, independently of impact assessments, may be disregarded in purely consequential risk evaluations. On the contrary, qualms of representatives of these principles, just as any other stable non-acceptance, have to be included as aggravating negative elements in technology assessments. (orig./HSCH) [de

  12. [Assisted reproductive technologies and ethics].

    Science.gov (United States)

    Belaisch-Allart, Joëlle

    2014-01-01

    Since the first birth after in vitro fertilization more than 5 million of IVF babies are born in the world. Assisted reproductive technologies captivate the public, they allow maternity without ovary (oocyte donation), without uterus (surrogate mother), paternity without spermatozoids (sperm donation), parentality without limits of age, parentality after death and homoparentality. These technologies arise a lot of ethics questions, the problem is that the answers are not the same all-round the world, laws are based on morals, beliefs, faiths, and convictions. Theses variations arise themselves questions on the value of these non-universal answers.

  13. Inheritance patterns of morphological laterality in mouth opening of zebrafish, Danio rerio.

    Science.gov (United States)

    Hata, Hiroki; Hori, Michio

    2012-01-01

    The inheritance patterns of asymmetry in mouth opening in zebrafish were investigated using crossing experiments. Zebrafish exhibit asymmetric laterality in mouth opening, with each individual having either a leftward (righty) or rightward (lefty) bias. All righty incrosses produced only righty F(1), whereas all lefty incrosses resulted in an F(1) L:R ratio of 2:1. All test crosses between lefty and righty individuals resulted in an F(1) L:R=1:1. These results were consistent with the hereditary pattern for Japanese medaka, three Tanganyikan cichlids, and a Japanese riverine goby. The pattern suggests a one-locus two-allele Mendelian model of inheritance, with the lefty allele being dominant over righty and the dominant homozygote being lethal. To determine the reason for the absence of lefty homozygotes, the survival rates of the offspring were examined according to developmental stage. Survival did not differ among combinations of parent laterality. Thus the mechanism underlying the lethality of the dominant homozygote remains unclear. This study showed that the mouth-opening laterality of zebrafish is genetically determined and that the direction follows a Mendelian inheritance pattern that is shared among cypriniform zebrafish, beloniform medaka, perciform cichlids, and a goby, suggesting a common genetic background in mouth-opening laterality among these species.

  14. A Book Review of Life After Death Row: Exonerees' Search for Community and Identity by Saundra D. Westervelt and Kimberly J. Cook.

    Directory of Open Access Journals (Sweden)

    Frank R. Baumgartner

    2013-06-01

    Full Text Available Saundra Westervelt and Kimberly Cook have done a great service by asking this question and by exploring the multiple dimensions of tragedy, irony, paradox, and pain that confront those wrongfully convicted of crimes, confronted with death row, and later found to be innocent. These are, of course, the "lucky ones" -- the mistakes associated with their wrongful convictions were discovered. But how lucky are they? All struggle with multiple concerns, practical, social, and psychological.

  15. Was Trafficking in Persons Really Criminalised?

    Directory of Open Access Journals (Sweden)

    Kristiina Kangaspunta

    2015-04-01

    Full Text Available This paper examines the successes and setbacks in the criminal justice response to trafficking in persons. While today, the majority of countries have passed specific legislation criminalising human trafficking in response to the United Nations Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children, there are still very few convictions of trafficking. Using currently available knowledge, this paper discusses four possible reasons for low conviction rates. Further, the paper suggests that due to the heavy dependency on victim testimonies when prosecuting trafficking in persons crimes, members of criminal organisations that are easily identifiable by victims may face criminal charges more frequently than other members of the criminal group, particularly those in positions of greater responsibility who profit the most from the criminal activities. In this context, the exceptionally high number of women among convicted offenders is explored.

  16. Using Behavior Sequence Analysis to Map Serial Killers' Life Histories.

    Science.gov (United States)

    Keatley, David A; Golightly, Hayley; Shephard, Rebecca; Yaksic, Enzo; Reid, Sasha

    2018-03-01

    The aim of the current research was to provide a novel method for mapping the developmental sequences of serial killers' life histories. An in-depth biographical account of serial killers' lives, from birth through to conviction, was gained and analyzed using Behavior Sequence Analysis. The analyses highlight similarities in behavioral events across the serial killers' lives, indicating not only which risk factors occur, but the temporal order of these factors. Results focused on early childhood environment, indicating the role of parental abuse; behaviors and events surrounding criminal histories of serial killers, showing that many had previous convictions and were known to police for other crimes; behaviors surrounding their murders, highlighting differences in victim choice and modus operandi; and, finally, trial pleas and convictions. The present research, therefore, provides a novel approach to synthesizing large volumes of data on criminals and presenting results in accessible, understandable outcomes.

  17. [Improving treatment adherence in kidney transplantation: a major challenge].

    Science.gov (United States)

    Kessler, Michèle

    2014-06-01

    The kidney transplant recipient is faced not only with the perspective of taking immunosuppressive drugs lifelong, but also the possibility of other long-term treatments prescribed for preexisting conditions, complications, or side effects. Proper management, and most importantly patient adherence, can become a complex challenge. Here we recall current definitions and describe methods for measuring treatment adherence, followed by a discussion on the prevalence of non-adherence in kidney transplant recipients, its effect on graft survival, and factors predictive of non-adherence. Ways of improving adherence are examined, leading to the conviction that helping patients take their medications regularly would probably have a greater impact on graft survival than marketing a new immunosuppressive agent. Copyright © 2014 Association Société de néphrologie. Published by Elsevier SAS. All rights reserved.

  18. Risk factors for violent crime in Schizophrenia: a national cohort study of 13,806 patients.

    Science.gov (United States)

    Fazel, Seena; Grann, Martin; Carlström, Eva; Lichtenstein, Paul; Långström, Niklas

    2009-03-01

    To determine risk factors for and prevalence of violent crime in patients with schizophrenia, and in particular, to explore the contribution of familial risk factors. We designed a cohort study that followed up patients with 2 or more hospitalizations for schizophrenia (ICD-8, ICD-9, and ICD-10 criteria) and investigated the risk for a violent conviction using Cox proportional hazards models. All 13,806 patients with 2 hospital discharge diagnoses of schizophrenia from January 1, 1973, through December 31, 2004, in Sweden were followed until violent conviction, emigration, death, or end of follow-up (December 31, 2004), and associations with sociodemographic, individual (substance abuse comorbidity, and previous violence), and familial (parental violent crime and parental alcohol abuse) factors were examined. Over an average follow-up period of 12 years, 17.1% (N = 1519) of the men and 5.6% (N = 273) of the women with 2 or more hospitalizations for schizophrenia had a violent conviction after discharge from hospital. Familial risk factors had moderate effects, increasing the risk for violent convictions by 50% to 150%. After adjustment for sociodemographic and individual risk factors, the associations between parental violent crime and risk of violent convictions remained in men (adjusted hazard ratio [HR] = 1.65, 95% CI = 1.33 to 2.04) and in women (adjusted HR = 1.83, 95% CI = 1.11 to 3.01), whereas parental alcohol abuse was no longer significantly associated with violent crime. Parental violent crime had moderate associations with violent crime in male and female offspring with at least 2 hospitalizations for schizophrenia, which were mostly stronger than the better documented sociodemographic risk factors. This suggests that familial (genetic or early environmental) risk factors have an important role in the etiology of violent offending among individuals with schizophrenia and should be considered in violence risk assessment. ©Copyright 2009 Physicians

  19. Development of digestive enzymes in larvae of Mayancichlid Cichlasoma urophthalmus

    OpenAIRE

    López Ramírez, G.; Cuenca Soria, C.A.; Álvarez González, C.A.; Tovar Ramírez, D.; Ortiz Galindo, José Luis; Perales García, N.; Márquez Couturier, G.; Arias Rodríguez, L.; Indy, J.R.; Contreras Sánchez, W.M.; Gisbert, E.; Moyano, F.J.

    2011-01-01

    The development of digestive enzymes during the early ontogeny of the Mayan cichlid (Cichlasoma urophthalmus) was studied using biochemical and electrophoretic techniques. From yolk absorption (6 days after hatching: dah), larvae were fed Artemia nauplii until 15 dah, afterward they were fed with commercial microparticulated trout food (45% protein and 16% lipids) from 16 to 60 dah. Several samples were collected including yolk-sac larvae (considered as day 1 after hatching) and specimens up ...

  20. Mental Health Professionals' Attitudes Toward Offenders With Mental Illness (Insanity Acquittees) in Ghana.

    Science.gov (United States)

    Adjorlolo, Samuel; Abdul-Nasiru, Inusah; Chan, Heng Choon Oliver; Bambi, Laryea Efua

    2018-02-01

    Mental health professionals' attitudes toward offenders with mental illness have significant implications for the quality of care and treatment rendered, making it imperative for these professionals to be aware of their attitudes. Yet, this topical issue has received little research attention. Consequently, the present study investigates attitudes toward offenders with mental illness (insanity acquittees) in a sample of 113 registered mental health nurses in Ghana. Using a cross-sectional survey and self-report methodology, the participants respond to measures of attitudes toward offenders with mental illness, attitudes toward mental illness, conviction proneness, and criminal blameworthiness. The results show that mental health nurses who reportedly practiced for a longer duration (6 years and above) were more likely to be unsympathetic, while the male nurses who were aged 30 years and above were more likely to hold offenders with mental illness strictly liable for their offenses. Importantly, the nurses' scores in conviction proneness and criminal blameworthiness significantly predict negative attitudes toward the offenders even after controlling for their attitudes toward mental illness. Yet, when the nurses' conviction proneness and criminal blameworthiness were held constant, their attitudes toward mental illness failed to predict attitudes toward the offenders. This initial finding implies that the nurses' views regarding criminal blameworthiness and conviction may be more influential in understanding their attitudes toward offenders with mental illness relative to their attitudes toward mental illness.