WorldWideScience

Sample records for macaws ara chloropterus

  1. Comparative electrocardiography in four species of macaws (genera Anodorhynchus and Ara).

    Science.gov (United States)

    Casares, M; Enders, F; Montoya, J A

    2000-06-01

    Electrocardiograms (ECGs) were recorded during isoflurane anaesthesia from 52 macaws of four species of the genera Anodorhynchus and Ara in order to establish electrocardiographic reference values. The birds examined were clinically healthy macaws of the following species: hyacinth macaw (HM; Anodorhynchus hyacinthinus, n = 14); green-winged macaw (GWM; Ara chloroptera, n = 11); blue-throated macaw (BTM; Ara glaucogularis, n = 15); and red-fronted macaw (RFM; Ara rubrogenys, n = 12). All ECGs were recorded using a paper speed of 50 mm/s and a calibration of 10 mm = 1 mV. Significant differences were determined between species for the heart rate, duration and amplitude of the P wave, amplitude of the T wave, and amplitude of the QRS complex, specially comparing the RFM to the other macaw species. No significant differences were found between two species of similar body weight: the HM and the GWM.

  2. Complete mitochondrial genome of Blue-and-yellow Macaw (Ara ararauna): the species morphologically similar to Blue-throated Macaw (Ara glaucogularis).

    Science.gov (United States)

    Urantowka, Adam Dawid; Mackiewicz, Paweł; Strzała, Tomasz

    2017-05-01

    Six genera of the Arini tribe form morphologically diverse group termed as Macaws. The presence of bare facial area distinguishes them from other members of the tribe. Genera and species of Macaw group differ in pattern of this bare skin as well as in body size. The genus Ara contains eight extant species. Two of them are classified as medium-sized Macaws and other six species are classified as large Macaws. Based on morphological similarities and differences, large Macaw species can be segregated into three pairs according to their plumage coloration. So far, representative mitochondrial genomes were sequenced only for Ara glaucogularis (blue and yellow coloration), Ara macao (predominantly red/scarlet) and Ara militaris (predominantly green) species. Ara ararauna is the second of two Ara species with predominant blue and yellow plumage. Hitherto, close phylogenetic relation of these two species was shown using only ND2 genes or incomplete combined COI/Cytb/ND2 sequences. Therefore, Ara ararauna mitogenome, which was sequenced in this study, will be indispensable to refine the phylogenetic relationships within Macaws group.

  3. Complete mitochondrial genome of Military Macaw (Ara militaris): its comparison with mitogenomes of two other Ara species.

    Science.gov (United States)

    Dawid Urantowka, Adam

    2016-09-01

    The Military Macaw is one of the eight species of the genus Ara. The genus is one of six genera, which form morphologically diverse group termed as Macaws. Parrots of this group differ in body size on demand of the genus and species. Six of Ara species are classified as large Macaws. Based on morphological similarities and differences, these species can be segregated into three pairs according to their plumage coloration. Representative mitochondrial genomes were sequenced only for A. glaucogularis (blue and yellow coloration) and A. macao (predominantly red/scarlet). Ara militaris is one of two predominantly green species and full mitochondrial genome of considered species was sequenced in this study. It's comparison with A. glaucogularis and A. macao mitogenomes revealed higher degree of identity between militaris and macao sequences than between militaris and glaucogularis mtDNAs. Ara militaris mitogenome will be indispensable to refine the phylogenetic relationships within Macaw group.

  4. Bilateral Uveitis and Hyphema in a Catalina Macaw (Ara ararauna x Ara macao) Associated with Multicentric Lymphoma

    Science.gov (United States)

    A 20-year-old, female Catalina macaw (Ara ararauna x Ara macao) presented with bilateral uveitis and hyphema. No other initial clinical signs were present and the results of the complete blood count, biochemical profile, and serum protein electrophoresis were unremarkable. Improvement in the hyphema...

  5. Scarlet Macaw, Ara macao, (Psittaciformes: Psittacidae diet in Central Pacific Costa Rica

    Directory of Open Access Journals (Sweden)

    Christopher Vaughan

    2006-09-01

    Full Text Available From 1993 to 1997, we observed Scarlet Macaw (Ara macao feeding behavior in Central Pacific Costa Rica. Feeding data acquired in this study were not collected systematically, but opportunistically whenever macaws were observed feeding. To supplement feeding observations, we conducted interviews with local residents. Scarlet Macaws fed on seeds, fruits, leaves, flowers and/or bark of 43 plant species. Various plant parts eaten by macaws from several tree species contain secondary compounds toxic to humans, and additional species included in their diet are nonnative, introduced for agricultural purposes. Important macaw feeding tree species are Ceiba pentandra, Schizolobium parahybum, and Hura crepitans; these species are also crucial to this macaw population because of nest cavities they provide. The results of this study contribute to the conservation of Scarlet Macaws in Central Pacific Costa Rica through promoting protection of individual trees, and through local elementary school reforestation programs focusing on tree species that macaws use for feeding and/or nesting. Scarlet Macaw conservation is extremely important, as numerous population pressures have caused significant declines in macaw numbers in Costa Rica. Rev. Biol. Trop. 54 (3: 919-926. Epub 2006 Sept. 29.Entre 1993-97, observamos el comportamiento de alimentación de la lapa roja (Ara macao en el Pacifico Central de Costa Rica. La lapa roja se alimentó de semillas, frutas, hojas, flores y corteza de 43 especies de plantas. Varias partes de las plantas comidas por las lapas contienen compuestos secundarios tóxicos al ser humano, y especies adicionales incluidas en la dieta son exóticas; introducidas por razones agrícolas, forestales o estéticas. Especies de árboles importantes como alimento de la lapa roja incluyen: Ceiba pentandra, Schizolobium parahybum, y Hura crepitans; también son criticas para la población de la lapa roja debido a proveen cavidades para anidaci

  6. First record of Paratanaisia bragai (Digenea: Eucotylidae in blue and gold macaw (Ara ararauna

    Directory of Open Access Journals (Sweden)

    Tarcísio Macedo Silva

    2016-03-01

    Full Text Available Abstract The aim of this study was to provide the first report on a new host for the digenean Paratanaisia bragai in the caninde macaw Ara ararauna along with the pathological aspects of the infection in the new host. The microscopic findings revealed the presence of granulomatous interstitial nephritis. This study contributes towards knowledge of parasitism by P. bragai in A. ararauna, and emphasizes the need to use best practices in wildlife conservation parks.

  7. Proventricular dilatation disease associated with Avian bornavirus in a scarlet macaw (Ara macao).

    Science.gov (United States)

    Keller, Dominique L; Honkavuori, Kirsi S; Briese, Thomas; Lipkin, W Ian; Muthuswamy, Anantharaman; Steinberg, Howard; Sladky, Kurt K

    2010-11-01

    A case of proventricular dilatation disease is described in a scarlet macaw (Ara macao) from clinical presentation to diagnosis with molecular methods. The initial clinical signs were depression progressing to head pressing over several days. A leukocytosis with toxic heterophil changes, hypoalbuminemia, and increased serum activity of aspartate aminotransferase and creatine kinase were present. Lead and zinc assays were within reference ranges, and results from Chlamydophila and polyomavirus testing were negative. Contrast-enhanced fluoroscopy revealed normal gastrointestinal transit times and motility as well as the presence of 2 small metallic foreign bodies in the ventriculus. The macaw was treated with antimicrobials, analgesics, vitamins E and B complex, force-feeding, and fluid administration with little improvement. Euthanasia was elected, and histologic examination of brain tissue revealed a perivascular lymphoplasmacytic infiltration, while the lungs had evidence of a fungal pneumonia. Tissue samples from the brain and proventriculus tested positive for the presence of Avian bornavirus genotype 2, while serology confirmed Avian bornavirus infection.

  8. Clostridium perfringens type A enteritis in blue and yellow macaw (Ara ararauna).

    Science.gov (United States)

    Guimarães, Marta Brito; Torres, Luciana Neves; Mesquita, Ramon Gomes; Ampuero, Fernanda; Cunha, Marcos Paulo Vieira; Ferreira, Thais Sebastiana Porfida; Ferreira, Antonio José Piantino; Catão-Dias, José Luiz; Moreno, Andrea Micke; Knöbl, Terezinha

    2014-12-01

    This study describes an outbreak of necrotic enteritis caused by Clostridium perfringens type A in captive macaws (Ara ararauna). Two psittacine birds presented a history of prostration and died 18 hr after manifestation of clinical signs. The necropsy findings and histopathologic lesions were indicative of necrotic enteritis. Microbiologic assays resulted in the growth of large gram-positive bacilli that were identified as C. perfringens. PCR was used to identify clostridium toxinotypes and confirmed the identification of isolated strains as C pefringens type A, positive to gene codifying beta 2 toxin. The infection source and predisposing factors could not be ascertained.

  9. Scanning electron microscopic study on the tongue in the scarlet macaw (Ara macao).

    Science.gov (United States)

    Emura, Shoichi; Okumura, Toshihiko; Chen, Huayue

    2012-01-01

    The dorsal lingual surface of scarlet macaw (Ara macao) was examined by scanning electron microscopy. Macroscopically, the lingual apex of the scarlet macaw had a lip-like shape. Three parts were distinguished in the dorsal surface of the tongue: the apex, body, and root of the tongue. The surface of the lingual apex had many grooves toward lingual root. The surface of the lingual apex was relatively smooth. The central surface of the papillary layer in the lingual apex after removal of the epithelium consisted of numerous dermal papillae, but the papillae were not observed in the lateral region. A pair of openings of the lingual glands was observed in the posterolateral region of the lingual body. The opening of the lingual gland after removal of the epithelium showed more clear structure than before removal. Many conical papillae in the posterior region of the lingual body were observed. The structure of the tongue of the scarlet macaw was different from that of the rainbow lorikeet.

  10. Comparative analysis of microsatellite variability in five macaw species (Psittaciformes, Psittacidae: application for conservation

    Directory of Open Access Journals (Sweden)

    Flavia T. Presti

    2011-01-01

    Full Text Available Cross-amplification was tested and variability in microsatellite primers (designed for Neotropical parrots compared, in five macaw species, viz., three endangered blue macaws (Cyanopsitta spixii [extinct in the wild], Anodorhynchus leari [endangered] and Anodorhynchus hyacinthinus [vulnerable], and two unthreatened red macaws (Ara chloropterus and Ara macao. Among the primers tested, 84.6% successfully amplified products in C. spixii, 83.3% in A. leari, 76.4% in A. hyacinthinus, 78.6% in A. chloropterus and 71.4% in A. macao. The mean expected heterozygosity estimated for each species, and based on loci analyzed in all the five, ranged from 0.33 (A. hyacinthinus to 0.85 (A. macao. As expected, the results revealed lower levels of genetic variability in threatened macaw species than in unthreatened. The low combined probability of genetic identity and the moderate to high potential for paternity exclusion, indicate the utility of the microsatellite loci set selected for each macaw species in kinship and population studies, thus constituting an aid in planning in-situ and ex-situ conservation.

  11. Forensic species identification of large macaws using DNA barcodes and microsatellite profiles.

    Science.gov (United States)

    Abe, Hideaki; Hayano, Azusa; Inoue-Murayama, Miho

    2012-01-01

    Using mitochondrial and nuclear markers species identification was conducted in the case of seized feathers. Earlier, we had sequenced cytochrome c oxidase subunit I (COI) both from 10 seized specimens and 43 validation specimens from captive macaws belonging to 4 Ara species (A. macao, A. chloropterus, A. ararauna, and A. ambiguus) and identified 19 haplotypes based on COI sequences. Species-level identification using Barcode of Life Data Systems showed that seized feathers shared the highest similarity with scarlet macaws (A. macao), and this result was supported by the tree-base identification with high bootstrap values. Moreover, microsatellite profiles in AgGT17 locus showed that patterns of allelic distribution in the seized feathers were apparently distinct from those of red-and-green macaw (A. chloropterus), but were overlapped with those of A. macao, suggesting that all of seized feathers were derived from several individuals of A. macao. We also determined the parentage of hybrid macaws by the combination of COI barcodes and microsatellite profiles. The technique presented here will contribute to forensic identification and future conservation of large macaws that have been lost due to deforestation.

  12. Morfologia e biometria do timo em araras dos gêneros Ara e Anodorhynchus Morphology and biometry of the thymus gland in macaw of Ara and Anodorhynchus genera

    Directory of Open Access Journals (Sweden)

    R.Z. Lima

    2013-02-01

    Full Text Available Foram utilizados 12 exemplares de Ara ararauna - seis fêmeas e seis machos -, cinco exemplares de Ara chloropterus (uma fêmea e quatro machos e dois exemplares de Anodorhynchus hyacinthinus - uma fêmea e um macho -, todos adultos, doados por criadouro particular, após óbito natural. Os lobos foram dissecados e medidos com paquímetro - comprimento x largura x espessura - e analisados quanto ao peso, à topografia e à morfologia individual. Independentemente do gênero, foram identificados, em 17 casos (89,5%, lobos tímicos nos antímeros cervicais esquerdo e direito, e em oito casos (42,1%, lobos na cavidade celomática. Os lobos apresentaram formatos alongados - 52,6% -, arredondados - 21,1% - ou ovalados - 15,8% -, posicionados preferencialmente ventromedialmente ao longo do plexo vasculoneural do pescoço, com número médio de cinco lobos por antímero, tamanho médio de 0,49cm de comprimento, 0,12cm de largura e 0,05cm de espessura e peso médio de 0,076g.Twelve samples of Ara ararauna - six females and six males -, five samples of Ara chloropterus (one female and four males and two samples of Anodorhynchus hyacinthinus (one female and one male, all adults from a Breeding Park, were used after natural death. The lobes were dissected and measured with electronic calliper (length x width x thickness and analyzed taking their weight, topography and individual morphology into account. Regardless of gender, 89.5% of the cases presented timic lobes in the left and right cervical antimere, and 42.1% of the cases presented lobes in the celomatic cavity. The lobes were shown in shapes - long (52.6%, round (21.1% or oval (15.8%, positioned mostly ventromedially, along the neurovascular plexus of the neck, with an average of five lobes per antimere, and an average size of 0.49cm length, 0.12cm width, and 0.05cm thick and average weight of 0.076g.

  13. Origin, distribution, and insertion of the brachial plexus nerves in Blue-and-yellow Macaws (Ara ararauna, Linnaeus, 1758

    Directory of Open Access Journals (Sweden)

    Kamal Achôa Filho

    2014-09-01

    Full Text Available Brazil has about 80 species of parrots cataloged, and five of them are identified as Macaws. As the vast majority of birds, Macaws use flight as their primary means of locomotion. However, the strength and power generated during the cycle of beating wings require a mechanism of active neuromuscular control and specialized adaptations of muscles responsible for flight, which are innervated by the brachial plexus. This study aims to describe the origin and distribution of peripheral nerves that make up the brachial plexus in Blue-and-yellow Macaw (Ara ararauna, Linnaeus, 1758, in order to aid the veterinarian to recognize and locate neuromuscular lesions in this species. We used five dead bodies, obtained from the Screening Center for Wild Animals in Paraíba, Brazil, in which the nerves were identified by direct dissection. Four nerve roots were viewed, originating three nerve trunks, which stem from the intervertebral spaces between the tenth cervical vertebra and the second thoracic vertebra. Nerves from the dorsal cord innervated extensor muscles, while ventral cord nerves innervated flexor muscles of the wing, in addition to the pectoral branches, responsible to innervate the superficial thoracic and shoulder muscles.

  14. A multi-platform draft de novo genome assembly and comparative analysis for the Scarlet Macaw (Ara macao).

    Science.gov (United States)

    Seabury, Christopher M; Dowd, Scot E; Seabury, Paul M; Raudsepp, Terje; Brightsmith, Donald J; Liboriussen, Poul; Halley, Yvette; Fisher, Colleen A; Owens, Elaine; Viswanathan, Ganesh; Tizard, Ian R

    2013-01-01

    Data deposition to NCBI Genomes: This Whole Genome Shotgun project has been deposited at DDBJ/EMBL/GenBank under the accession AMXX00000000 (SMACv1.0, unscaffolded genome assembly). The version described in this paper is the first version (AMXX01000000). The scaffolded assembly (SMACv1.1) has been deposited at DDBJ/EMBL/GenBank under the accession AOUJ00000000, and is also the first version (AOUJ01000000). Strong biological interest in traits such as the acquisition and utilization of speech, cognitive abilities, and longevity catalyzed the utilization of two next-generation sequencing platforms to provide the first-draft de novo genome assembly for the large, new world parrot Ara macao (Scarlet Macaw). Despite the challenges associated with genome assembly for an outbred avian species, including 951,507 high-quality putative single nucleotide polymorphisms, the final genome assembly (>1.035 Gb) includes more than 997 Mb of unambiguous sequence data (excluding N's). Cytogenetic analyses including ZooFISH revealed complex rearrangements associated with two scarlet macaw macrochromosomes (AMA6, AMA7), which supports the hypothesis that translocations, fusions, and intragenomic rearrangements are key factors associated with karyotype evolution among parrots. In silico annotation of the scarlet macaw genome provided robust evidence for 14,405 nuclear gene annotation models, their predicted transcripts and proteins, and a complete mitochondrial genome. Comparative analyses involving the scarlet macaw, chicken, and zebra finch genomes revealed high levels of nucleotide-based conservation as well as evidence for overall genome stability among the three highly divergent species. Application of a new whole-genome analysis of divergence involving all three species yielded prioritized candidate genes and noncoding regions for parrot traits of interest (i.e., speech, intelligence, longevity) which were independently supported by the results of previous human GWAS studies. We

  15. A multi-platform draft de novo genome assembly and comparative analysis for the Scarlet Macaw (Ara macao.

    Directory of Open Access Journals (Sweden)

    Christopher M Seabury

    Full Text Available Data deposition to NCBI Genomes: This Whole Genome Shotgun project has been deposited at DDBJ/EMBL/GenBank under the accession AMXX00000000 (SMACv1.0, unscaffolded genome assembly. The version described in this paper is the first version (AMXX01000000. The scaffolded assembly (SMACv1.1 has been deposited at DDBJ/EMBL/GenBank under the accession AOUJ00000000, and is also the first version (AOUJ01000000. Strong biological interest in traits such as the acquisition and utilization of speech, cognitive abilities, and longevity catalyzed the utilization of two next-generation sequencing platforms to provide the first-draft de novo genome assembly for the large, new world parrot Ara macao (Scarlet Macaw. Despite the challenges associated with genome assembly for an outbred avian species, including 951,507 high-quality putative single nucleotide polymorphisms, the final genome assembly (>1.035 Gb includes more than 997 Mb of unambiguous sequence data (excluding N's. Cytogenetic analyses including ZooFISH revealed complex rearrangements associated with two scarlet macaw macrochromosomes (AMA6, AMA7, which supports the hypothesis that translocations, fusions, and intragenomic rearrangements are key factors associated with karyotype evolution among parrots. In silico annotation of the scarlet macaw genome provided robust evidence for 14,405 nuclear gene annotation models, their predicted transcripts and proteins, and a complete mitochondrial genome. Comparative analyses involving the scarlet macaw, chicken, and zebra finch genomes revealed high levels of nucleotide-based conservation as well as evidence for overall genome stability among the three highly divergent species. Application of a new whole-genome analysis of divergence involving all three species yielded prioritized candidate genes and noncoding regions for parrot traits of interest (i.e., speech, intelligence, longevity which were independently supported by the results of previous human GWAS

  16. Caso clínico. Aspergiloma traqueal en guacamayo azul y amarillo (Ara ararauna - Tracheal aspergilloma in a Blue and Gold Macaw (Ara ararauna.

    Directory of Open Access Journals (Sweden)

    Dra. Rossana Raineri

    2011-04-01

    Full Text Available ResumenEl presente artículo expone el caso clínico de un Guacamayo azul y amarillo (Ara ararauna atendido como emergencia por un cuadro de disnea intensa estableciéndose una metodología de atención por etapas, logrando la estabilización inicial de los signos vitales del ave en un primer tiempo para luego determinar la causa y extirpar por mínimo acceso, gracias a la endoscopía, un gran fragmento de aspergiloma que obstruía la traquea, lográndose la confirmación del diagnostico por métodos de laboratorio e indicándose un tratamiento especifico para este tipo de patologías.Summaryin this paper we present a clinical case of a Blue and Gold Macaw (Araararauna treated in emergency with symptoms of severe dyspnea. Weapproached the case achieving the stabilization of vital signs of the bird in a first time. Then we determined the cause of dyspnea by minimal access, by endo-tracheal endoscopic examination, and we removed a large aspergilloma that was obstructing the trachea. We obtained the confirmation of the diagnosis by laboratory methods and decided a specific treatment for the disease.

  17. Identification and comparison of marbofloxacin metabolites from the plasma of ball pythons (Python regius) and blue and gold macaws (Ara ararauna).

    Science.gov (United States)

    Hunter, R P; Koch, D E; Coke, R L; Carpenter, J W; Isaza, R

    2007-06-01

    Marbofloxacin is a veterinary only, synthetic, broad spectrum fluoroquinolone antimicrobial agent. In mammals, approximately 40% of the oral dose of marbofloxacin is excreted unchanged in the urine; the remaining is excreted via the bile as unchanged drug in the feces. The Vd ranges from 1.1 (cattle) to 1.3 (dog, goat, swine) L/kg. Because of extra-label use of marbofloxacin in birds and reptiles, this study was designed to determine the profile of metabolites in plasma and compare the circulating metabolite profile between a reptile and an avian species. Six adult ball pythons (Python regius) and 10 blue and gold macaws (Ara ararauna) were used in this study. The macaws were dosed both i.v. and p.o. with a single 2.5 mg/kg administration where as the pythons received a single 10 mg/kg dose both i.v. and p.o. The metabolite profiles of marbofloxacin in the plasma of these species were determined using a high performance liquid chromatography system with a mass spectrometer for detection (LC/MS/MS). Mass spectra data generated from the snake and bird plasma samples were compared with previously reported LC/MS/MS mass spectral data. Evidence does not suggest differences due to route of administration (i.v. vs. p.o.) in either species. Four chromatographic peaks with resulting daughter spectrum were identified and represent 12 possible metabolite structures. All of the proposed metabolites, except for the N-oxide, appear to be unique to macaws. The potential metabolites identified in macaws appear to be very different than those reported for chickens.

  18. Computed tomographic anatomy of the heads of blue-and-gold macaws (Ara ararauna), African grey parrots (Psittacus erithacus), and monk parakeets (Myiopsitta monachus).

    Science.gov (United States)

    Veladiano, Irene A; Banzato, Tommaso; Bellini, Luca; Montani, Alessandro; Catania, Salvatore; Zotti, Alessandro

    2016-12-01

    OBJECTIVE To create an atlas of the normal CT anatomy of the head of blue-and-gold macaws (Ara ararauna), African grey parrots (Psittacus erithacus), and monk parakeets (Myiopsitta monachus). ANIMALS 3 blue-and-gold macaws, 5 African grey parrots, and 6 monk parakeets and cadavers of 4 adult blue-and-gold macaws, 4 adult African grey parrots, and 7 monk parakeets. PROCEDURES Contrast-enhanced CT imaging of the head of the live birds was performed with a 4-multidetector-row CT scanner. Cadaveric specimens were stored at -20°C until completely frozen, and each head was then sliced at 5-mm intervals to create reference cross sections. Frozen cross sections were cleaned with water and photographed on both sides. Anatomic structures within each head were identified with the aid of the available literature, labeled first on anatomic photographs, and then matched to and labeled on corresponding CT images. The best CT reconstruction filter, window width, and window level for obtaining diagnostic images of each structure were also identified. RESULTS Most of the clinically relevant structures of the head were identified in both the cross-sectional photographs and corresponding CT images. Optimal visibility of the bony structures was achieved via CT with a standard soft tissue filter and pulmonary window. The use of contrast medium allowed a thorough evaluation of the soft tissues. CONCLUSIONS AND CLINICAL RELEVANCE The labeled CT images and photographs of anatomic structures of the heads of common pet parrot species created in this study may be useful as an atlas to aid interpretation of images obtained with any imaging modality.

  19. Plasma osmolality reference values in African grey parrots (Psittacus erithacus erithacus), Hispaniolan Amazon parrots (Amazona ventralis), and red-fronted macaws (Ara rubrogenys).

    Science.gov (United States)

    Beaufrère, Hugues; Acierno, Mark; Mitchell, Mark; Guzman, David Sanchez-Migallon; Bryant, Heather; Tully, Thomas N

    2011-06-01

    Birds are routinely presented to veterinarians for dehydration. Success with these cases ultimately depends on providing replacement fluids and re-establishing fluid homeostasis. Few studies have been done to determine reference ranges for plasma osmolality in birds. The goals of this study were to determine reference values for plasma osmolality in 3 species of parrots and to provide recommendations on fluid selection for replacement therapy in these species. Blood samples were collected from 21 adult Hispaniolan Amazon parrots (Amazona ventralis), 21 Congo African grey parrots (Psittacus erithacus erithacus), and 9 red-fronted macaws (Ara rubrogenys), and were placed into lithium heparin containers. Plasma osmolality was measured in duplicate with a freezing point depression osmometer. Summary statistics were computed from the average values. Reference ranges, calculated by using the robust method, were 288-324, 308-345, and 223-369 mOsm/kg in African grey parrots, Hispaniolan Amazon parrots, and red-fronted macaws, respectively. The mean +/- SD values were 306 +/- 7, 327 +/- 7, and 304 +/- 18 mOsm/kg in African grey parrots, Hispaniolan Amazon parrots, and red-fronted macaws, respectively. Comparisons with osmolality values in mammals and values previously reported for psittacine bird species suggest that plasma osmolality is slightly higher in parrots than in mammals, species-specific differences exist, and differences between reported values occur. Overall, fluids with an osmolarity close to 300-320 mOsm/L, such as Normosol-R, Plasmalyte-R, Plasmalyte-A, and NaCl 0.9%, can be recommended in parrots for fluid replacement therapy when isotonic fluids are required.

  20. Predicted metabolizable energy density and amino acid profile of the crop contents of free-living scarlet macaw chicks (Ara macao).

    Science.gov (United States)

    Cornejo, J; Dierenfeld, E S; Bailey, C A; Brightsmith, D J

    2012-12-01

    Hand rearing of neonates is a common practice for the propagation of psittacines. However, nutritional requirements for their growth and development are not well understood, and malnutrition is common. We analysed the amino acid (AA) profile of the crop contents of 19 free-living scarlet macaw (Ara macao) chicks, 19-59 days old. Predicted metabolizable energy (PME) density was 16.9 MJ/kg DM and true protein (total AA protein) 8.3 g/MJ PME. Crude protein (CP) was 10.0 g/MJ PME, lower than the requirements of 0- to 12-week-old leghorn chicks but not different than the requirements of growing budgerigars (Melopsittacus undulatus) and lovebirds (Agapornis spp.). The mean concentrations of leucine, isoleucine, threonine, lysine (Lys) and methionine on a PME basis were below the minimum requirements of 0- to 12-week-old leghorn-type chicks. The calculated PME density of the samples did not vary with age. However, there was a significant negative correlation between the average age of the chicks and the Lys concentration. We conclude that the lower CP and AA densities compared with poultry could result from a combination of (i) differences in the essential AA composition of the body tissues, (ii) adaptations that allow the birds to grow on low-protein food sources and (iii) suboptimal nutrition of these free-ranging chicks. © 2011 Blackwell Verlag GmbH.

  1. Coccidia of New World psittaciform birds (Aves: Psittaciformes): Eimeria ararae n. sp. (Apicomplexa: Eimeriidae) from the blue-and-yellow macaw Ara ararauna (Linnaeus).

    Science.gov (United States)

    do Bomfim Lopes, Bruno; Berto, Bruno Pereira; de Carvalho Balthazar, Lianna Maria; Coelho, Cleide Domingues; Neves, Daniel Medeiros; Lopes, Carlos Wilson Gomes

    2014-06-01

    In the New World, the avian order Psittaciformes comprises 142 species, yet to date only 3 (2%) of the species have been examined for coccidia, and from these only four species of Eimeria Schneider, 1875 have been described. In this study, a new coccidian species (Protozoa: Apicomplexa: Eimeriidae) obtained from the blue-and-yellow macaw Ara ararauna (Linnaeus) is reported from Brazil. Oöcysts of Eimeria ararae n. sp. are ovoidal, measure 28.7 × 20.2 μm and have a smooth, bi-layered wall c.1.1 μm thick. Both micropyle and oöcyst residuum are absent, but polar granules are present. Sporocysts are ovoidal and measure 17.0 × 8.3 µm, with knob-like, prominent Stieda body and sporocyst residuum is composed of granules; sub-Stieda body is absent. Sporozoites are vermiform with one refractile body and a nucleus. This is the fifth description of an eimerid coccidian infecting a New World psittaciform bird.

  2. DNA sequence analysis to guide the release of blue-and-yellow macaws (Ara ararauna, Psittaciformes, Aves) from the illegal trade back into the wild.

    Science.gov (United States)

    Fernandes, Gislaine A; Caparroz, Renato

    2013-03-01

    The illegal wildlife trade is one of the major threats to Brazil's biodiversity. Approximately 80 % of illegally captured animals are birds, and 4 % of those are parrots. Although many seized birds do not survive, those that are recovered may be returned to the wild. The release of seized individuals into the wild should be conducted with caution, as local populations may suffer adverse effects if genetically different individuals are introduced. In this study, we evaluated the genetic relationships between 13 illegally captured blue-and-yellow macaws selected for release in northeastern Goiás, Brazil, and previously studied Brazilian macaw populations. We identified the seized macaws that were genetically similar to those from northwestern Goiás and that were therefore most suitable for release in that area. The genetic relationship was evaluated by sequence analysis of 403 bp of mitochondrial DNA control region. Relationships between mitochondrial haplotypes were computed via a median-joining network. Only six of the seized macaws were closely related to the macaws of northeastern Goiás, indicating that those macaws were potential candidates for release in that area. However, the release of these birds should follow all technical recommendations required by the Brazilian environmental authorities.

  3. Ara

    Science.gov (United States)

    Murdin, P.

    2000-11-01

    (the Altar; abbrev. Ara, gen. Arae; area 237 sq. deg.) A southern constellation that lies between Scorpius and Apus, and culminates at midnight in early June. It is said to represent the altar upon which in Greek mythology the gods swore allegiance before their battle against the Titans, and that upon which Chiron, the centaur, is about to sacrifice Lupus, the wolf (which was a neighboring conste...

  4. Ampliación de la distribución y presencia de una colonia reproductiva de la guacamaya verde (Ara militaris en el alto Balsas de Guerrero, México Range expansion and reproductive colony of the Military Macaw (Ara militaris in the upper Balsas basin, Guerrero, México

    Directory of Open Access Journals (Sweden)

    Víctor H. Jiménez-Arcos

    2012-09-01

    Full Text Available Se registra una población y colonia reproductora de guacamaya verde (Ara militaris en el alto Balsas de Guerrero. La colonia se ubica en el bosque tropical seco de la localidad de Papalutla, al margen del río Atoyac, en el extremo noreste del estado. A lo largo de 4 años de conteos (n= 20, se registró una abundancia de 22.7 ± 2.8 individuos. Este registro confirma que la guacamaya verde aún se reproduce en Guerrero y amplía en aproximadamente 100 km hacia el extremo noreste del estado su distribución conocida.We report a new population of green macaw (Ara militaris to the Mexican state of Guerrero. The colony is located besides the Atoyac River, in the dry tropical forest of Papalutla, in the far northeast corner of the state. Along 4 years of counts (n= 20, an abundance of 22.7 ± 2.8 individuals has been registered. This report is relevant because it is the first record of a resident colony of green macaw in the upper Balsas basin, extending its known distribution range to the northwestern limit of Guerrero.

  5. Effects of food processing and fibre content on the digestibility, energy intake and biochemical parameters of Blue-and-gold macaws (Ara ararauna L. - Aves, Psittacidae).

    Science.gov (United States)

    Veloso, R R; Sakomura, N K; Kawauchi, I M; Malheiros, E B; Carciofi, A C

    2014-04-01

    Considering the increased incidence of obesity and metabolic diseases in caged psittacines, the effect of fibre and food processing was evaluated in the Blue-and-gold macaw. Four food formulations (0%, 7%, 14% and 21% of sugarcane fibre) processed by pelleting or extrusion were studied, resulting in eight diets. To study digestibility, 48 macaws housed in pairs in cages was used in a block design. Subsequently, diets containing 0% or 21% sugarcane fibre, pelleted or extrude was fed for 4 months to evaluate energy intake and blood metabolites. A 2 × 2 × 2 (two fibre levels, two food processing methods and two genders) factorial arrangement with subplots (beginning and end) was used. When differences were detected in anova's F test, data were submitted to polynomial contrasts in the first experiment and to orthogonal contrasts in the second experiment (p food processing. Pelleted foods presented higher dry matter digestibility and food metabolisable energy (ME) than the extruded ones (p processing did not change ME ingestion (p > 0.05). The macaws gained body weight (p 0.05), but females fed with the high-fibre diets did not gain weight (p > 0.05), suggesting a low food ME (12.5 kJ/g).The substitution of the original diet (sunflower seeds, fruits and cooked maize) by the experimental foods decreased the basal (12-h fast) concentrations of glucose, cholesterol and triglycerides (p < 0.001). The consumption of pelleted diets reduced serum glucose and cholesterol (p < 0.05). Results suggest that the pelleted diets were more beneficial and can be used to reduce blood metabolites related to metabolic disorders that are commonly observed in macaws.

  6. Parâmetros de bioquímica sérica de machos, fêmeas e filhotes de Araras canindé (Ara ararauna saudáveis mantidas em cativeiro comercial Serum biochemical parameters of healthy male, female and young blue-and-yellow macaws (Ara ararauna bred in captivity

    Directory of Open Access Journals (Sweden)

    Stella de Faria Valle

    2008-06-01

    , totaling nearly 80 species. The blue-and-yellow macaw (Ara ararauna, the most representative species of the Psittaciformes order, lives in the forest areas of different Brazilian regions. IBAMA, Brazilian environmental protection agency, has authorized the trade of wild animals raised in breeding facilities; consequently, their use as household pets has increased ever since. Currently, too little is known about clinical and laboratory parameters of wild species bred in captivity. The aim of the present study was to determine the serum biochemical parameters of healthy blue-and-yellow macaws (Ara ararauna of different sexes and ages reared in a commercial breeding facility under controlled and standardized feeding and management practices. Blood samples were collected from 35 blue-and-yellow macaws (11 fledglings and 24 adults and sent to the Laboratory of Veterinary Clinical Pathology of Universidade de Passo Fundo (UPF for measurement of the following biochemical parameters: uric acid (UA, albumin (Alb, aspartate aminotransferase (AST, calcium (Ca, cholesterol (Chol, creatine kinase (CK, alkaline phosphatase (AP, inorganic phosphorus (iP, fructosamine (Fru, gamma-glutamyl transferase (GGT, total protein (TP and urea nitrogen (Ur. There were significant differences among adult macaws with regard to CK levels (higher in males and to Ca and UA levels (higher in females. Differences were noted among adults and fledglings with respect to UA, Ca, Alb, Chol, AP, iP and Fru. Most of the findings can be ascribed to the different feeding regimens and ages of the birds analyzed. The data obtained herein can be used as reference parameters for Brazilian blue-and-yellow macaws.

  7. Veterinární problematika v chovu Ara chloroptera a Ara macao. (rešeršní práce)

    OpenAIRE

    Jandová, Ivana

    2012-01-01

    Red and green Macaw (Ara chloroptera) and Scarlet Macaw (Ara macao) belong to the most bred big parrots in our country. They are resistant species, however, in breeding they can suffer from different illnesses. The aim of this work was to deal with the existing knowledge of their veterinary problems. The work is divided into several main parts according to the qualities of illnesses. There are infectious and invasive diseases, genetic disorders, tumoral diseases or veterinary problems caused ...

  8. Early procurement of scarlet macaws and the emergence of social complexity in Chaco Canyon, NM.

    Science.gov (United States)

    Watson, Adam S; Plog, Stephen; Culleton, Brendan J; Gilman, Patricia A; LeBlanc, Steven A; Whiteley, Peter M; Claramunt, Santiago; Kennett, Douglas J

    2015-07-07

    High-precision accelerator mass spectrometer (AMS) (14)C dates of scarlet macaw (Ara macao) skeletal remains provide the first direct evidence from Chaco Canyon in northwestern New Mexico that these Neotropical birds were procured from Mesoamerica by Pueblo people as early as ∼ A.D. 900-975. Chaco was a prominent prehistoric Pueblo center with a dense concentration of multistoried great houses constructed from the 9th through early 12th centuries. At the best known great house of Pueblo Bonito, unusual burial crypts and significant quantities of exotic and symbolically important materials, including scarlet macaws, turquoise, marine shell, and cacao, suggest societal complexity unprecedented elsewhere in the Puebloan world. Scarlet macaws are known markers of social and political status among the Pueblos. New AMS (14)C-dated scarlet macaw remains from Pueblo Bonito demonstrate that these birds were acquired persistently from Mesoamerica between A.D. 900 and 1150. Most of the macaws date before the hypothesized apogeal Chacoan period (A.D. 1040-1110) to which they are commonly attributed. The 10th century acquisition of these birds is consistent with the hypothesis that more formalized status hierarchies developed with significant connections to Mesoamerica before the post-A.D. 1040 architectural florescence in Chaco Canyon.

  9. Notas acerca de las guacamayas (Psittacidae : Ara) introducidas en el municipio de Medellín, Colombia

    NARCIS (Netherlands)

    Lara-Vásquez, C.E.; Castaño-Rivas, A.M.; Jonker, R.M.V.

    2015-01-01

    In the 90s, organizations in charge of wildlife management in Medellín, released macaws (Psittacidae: Ara) in the city. We report Ara severa, A. chloroptera and A. macao in the city. A group of eight individuals, belonging to the latter two species was observed flocking together in the urban area of

  10. Philornis sp. bot fly larvae in free living scarlet macaw nestlings and a new technique for their extraction.

    Science.gov (United States)

    Olah, George; Vigo, Gabriela; Ortiz, Lizzie; Rozsa, Lajos; Brightsmith, Donald J

    2013-09-01

    Bot fly larvae (Philornis genus) are obligate subcutaneous blood-feeding parasites of Neotropical birds including psittacines. We analyze twelve years of data on scarlet macaw (Ara macao) nestlings in natural and artificial nests in the lowland forests of southeastern Peru and report prevalence and intensity of Philornis parasitism. Bot fly prevalence was 28.9% while mean intensity was 5.0 larvae per infected chick. Prevalence in natural nests (11%, N=90 nestlings) was lower than in wooden nest-boxes (39%, N=57) and PVC boxes (39%, N=109). We describe a new technique of removing Philornis larvae using a reverse syringe design snake bite extractor. We compare this new technique to two other methods for removing bots from macaw chicks and find the new method the most suitable.

  11. Positive reinforcement training facilitates the voluntary participation of laboratory macaws with veterinary procedures.

    Science.gov (United States)

    Daugette, Kelsey F; Hoppes, Sharman; Tizard, Ian; Brightsmith, Donald

    2012-12-01

    Psittacine birds are challenging laboratory subjects, as they are typically long-lived, very social, highly intelligent, and easily stressed. The benefits of positive reinforcement techniques in animal management have been well documented for mammalian species; however, there are few publications on such programs for birds. To demonstrate the practicality of positive reinforcement training of laboratory birds to cooperate with research procedures involving direct manipulation of individuals, 9 adult macaws (Ara species; 5 individuals and 2 pairs) were trained in 10-minute sessions, twice a day for 8 weeks. The trained behaviors were: target, stay, accept liquids from a syringe, step onto a perch, step onto a scale, allow pressing a syringe to the pectoral area (surrogate for an intramuscular injection), and step onto a towel. All individually housed birds reliably targeted, stayed, and accepted a syringe, and 4 of the 5 stepped onto a perch. One bird performed all of the behaviors. Paired birds learned advanced techniques significantly faster when trained by 2 trainers versus 1 trainer. All behaviors that were mastered during the initial phase of training were successfully transferred so that the birds would reliably perform for the husbandry staff. We conclude that positive reinforcement techniques provide an effective, practical way to train laboratory macaws in behaviors useful for veterinary practice and research. Positive reinforcement used to evoke voluntary participation in procedures will help reduce stress associated with capture and restraint and improve welfare for laboratory parrots.

  12. Morfologia e biometria do timo em araras dos gêneros Ara e Anodorhynchus

    Directory of Open Access Journals (Sweden)

    R.Z. Lima

    2013-02-01

    Full Text Available Foram utilizados 12 exemplares de Ara ararauna - seis fêmeas e seis machos -, cinco exemplares de Ara chloropterus (uma fêmea e quatro machos e dois exemplares de Anodorhynchus hyacinthinus - uma fêmea e um macho -, todos adultos, doados por criadouro particular, após óbito natural. Os lobos foram dissecados e medidos com paquímetro - comprimento x largura x espessura - e analisados quanto ao peso, à topografia e à morfologia individual. Independentemente do gênero, foram identificados, em 17 casos (89,5%, lobos tímicos nos antímeros cervicais esquerdo e direito, e em oito casos (42,1%, lobos na cavidade celomática. Os lobos apresentaram formatos alongados - 52,6% -, arredondados - 21,1% - ou ovalados - 15,8% -, posicionados preferencialmente ventromedialmente ao longo do plexo vasculoneural do pescoço, com número médio de cinco lobos por antímero, tamanho médio de 0,49cm de comprimento, 0,12cm de largura e 0,05cm de espessura e peso médio de 0,076g.

  13. Multi-center Airborne Coherent Atmospheric Wind Sensor (MACAWS)

    Science.gov (United States)

    Rhothermel, Jeffry; Jones, W. D.; Dunkin, J. A.; Mccaul, E. W., Jr.

    1993-01-01

    This effort involves development of a calibrated, pulsed coherent CO2 Doppler lidar, followed by a carefully-planned and -executed program of multi-dimensional wind velocity and aerosol backscatter measurements from the NASA DC-8 research aircraft. The lidar, designated as the Multi-center Airborne Coherent Atmospheric Wind Sensor (MACAWS), will be applicable to two research areas. First, MACAWS will enable specialized measurements of atmospheric dynamical processes in the planetary boundary layer and free troposphere in geographic locations and over scales of motion not routinely or easily accessible to conventional sensors. The proposed observations will contribute fundamentally to a greater understanding of the role of the mesoscale, helping to improve predictive capabilities for mesoscale phenomena and to provide insights into improving model parameterizations of sub-grid scale processes within large-scale circulation models. As such, it has the potential to contribute uniquely to major, multi-institutional field programs planned for the mid 1990's. Second, MACAWS measurements can be used to reduce the degree of uncertainty in performance assessments and algorithm development for NASA's prospective Laser Atmospheric Wind Sounder (LAWS), which has no space-based instrument heritage. Ground-based lidar measurements alone are insufficient to address all of the key issues. To minimize costs, MACAWS is being developed cooperatively by the lidar remote sensing groups of the Jet Propulsion Laboratory, NOAA Wave Propagation Laboratory, and MSFC using existing lidar hardware and manpower resources. Several lidar components have already been exercised in previous airborne lidar programs (for example, MSFC Airborne Doppler Lidar System (ADLS) used in 1981,4 Severe Storms Wind Measurement Program; JPL Airborne Backscatter Lidar Experiment (ABLE) used in 1989,90 Global Backscatter Experiment Survey Missions). MSFC has been given responsibility for directing the overall

  14. The Multi-Center Airborne Coherent Atmospheric Wind Sensor, MACAWS

    Science.gov (United States)

    Rothermel, Jeffry; Cutten, Dean R.; Hardesty, R. Michael; Menzies, Robert T.; Howell, James; Johnson, Steven C.; Tratt, David M.; Olivier, Lisa D.; Banta, Robert M.

    1997-01-01

    In 1992 the atmospheric lidar remote sensing groups of the NASA Marshall Space Flight Center, NOAA Environmental Technology Laboratory, and Jet Propulsion Laboratory began a joint collaboration to develop an airborne high-energy Doppler laser radar (lidar) system for atmospheric research and satellite validation and simulation studies. The result is the Multi-center Airborne Coherent Atmospheric Wind Sensor, MACAWS, which has the capability to remotely sense the distribution of wind and absolute aerosol backscatter in the troposphere and lower stratosphere. A factor critical to the programmatic feasibility and technical success of this collaboration has been the utilization of existing components and expertise which were developed for previous atmospheric research by the respective institutions. The motivation for the MACAWS program Is three-fold: to obtain fundamental measurements of sub-synoptic scale processes and features which may be used as a basis to improve sub-grid scale parameterizations in large-scale models; to obtain similar datasets in order to improve the understanding and predictive capabilities on the mesoscale; and to validate (simulate) the performance of existing (planned) satellite-borne sensors. Examples of the latter include participation in the validation of the NASA Scatterometer and the assessment of prospective satellite Doppler lidar for global tropospheric wind measurement. Initial flight tests were made in September 1995; subsequent flights were made in June 1996 following improvements. This paper describes the MACAWS instrument, principles of operation, examples of measurements over the eastern Pacific Ocean and western United States, and future applications.

  15. HEMOGRAMA E BIOQUÍMICA CLÍNICA SANGUÍNEA DE ARARAS (Ara sp. MANTIDAS EM SÍTIOS ECOLÓGICOS NO ESTADO DA BAHIA

    Directory of Open Access Journals (Sweden)

    Débora Malta Gomes

    2011-12-01

    Full Text Available This research aimed to establish reference values for hemogram and clinical biochemistry, aiming at to evaluating the liver function of healthy macaws (Ara sp., with the influence of species on the blood constituents, in order to contribute to the health monitoring of this species kept in ecological farms in the state of Bahia (Brazil. We used forty-five blood samples from three distinct species: green-winged macaw (Ara chloroptera, blue-and-yellow macaw (Ara ararauna and scarlet macaws (Ara macao. A total of 3.5 mL of blood was collected from the ulnar vein of each bird: 1.5 mL was placed in tubes containing EDTA, to carry out the hemogram, and 2.0 mL of blood without anticoagulant was used to obtain serum, for the biochemical analysis. The averages obtained for the blood of the genus Ara were PCV: 2.74 ± 0.48 x106/μL; VG: 36.8 ± 5.56%; Hb: 15.4 ± 2.42 g/dL; thrombocytes:9,580 ± 2,850 x103/μL; leukocyte count: 5,340 ± 3,580/μL; lymphocytes: 1,408.8 ± 1,020.7/μL; heterophils: 3,252.0 ± 2,026.3/μL; monocytes: 169.1 ± 227.5/μL; basophils: 34.2 ± 72.3/μL; eosinophils: 186.9 ± 183.9/μL. The results of the serum biochemical parameters were activity of the enzymes AST 67.6 ± 12.8 IU/L; CK 77.9 ± 44.6 IU/L; LDH 240.1 ± 85.6 IU/L; cholesterol 160.3 ± 34.8 mg/dL; triglycerides 111.8 ± 58.6 mg/dL; glucose 228.5 ± 38.1 mg/dL and total proteins: 3.37 ± 0.8 g/dL. Significant differences (p <0.05 influenced by species were detected for the values of number of PCV, GV, number of leukocytes and the concentration of cholesterol and glucose.

  16. Presence of avian bornavirus RNA and anti-avian bornavirus antibodies in apparently healthy macaws.

    Science.gov (United States)

    De Kloet, Siwo R; Dorrestein, Gerry M

    2009-12-01

    Recently a novel avian bornavirus has been described that has been suggested to be the possible etiological agent for proventricular dilatation disease or macaw wasting disease. This article describes two macaws that shed avian bornaviral RNA sequences and demonstrated anti-avian bornavirus antibodies as revealed by reverse transcriptase polymerase chain reaction (RT-PCR), enzyme-linked immunosorbent assay (ELISA), and Western blot, yet are free of outward clinical signs of the disease.

  17. Adolescent Relationship Abuse (ARA) Toolkit

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Adolescent Relationship Abuse (ARA) Toolkit provides information and strategies on how to: incorporate abuse prevention into programming; conduct staff training;...

  18. Karyotype description of two Neotropical Psittacidae species: the endangered Hyacinth Macaw, Anodorhynchus hyacinthinus, and the Hawk-headed Parrot, Deroptyus accipitrinus (Psittaciformes: Aves, and its significance for conservation plans

    Directory of Open Access Journals (Sweden)

    Vitor de Oliveira Lunardi

    2003-01-01

    Full Text Available Neotropical parrots are among the most threatened groups of birds in the world, and many species are facing extinction in a near future. At the same time, the taxonomic position of many species remains unclear. Karyotype analysis has been used to elucidate the phylogenetic status of many bird groups, also providing important information for both in situ and ex situ conservation plans. The objective of the present study was to describe for the first time the karyotypes of the endangered Hyacinth Macaw, Anodorhynchus hyacinthinus, and of the Hawk-headed Parrot, Deroptyus accipitrinus. A diploid number of 2n = 70 and a karyotype similar to the main pattern previously found for the genera Ara, Cyanopsitta, Aratinga, Propyrrhura, Pionites, Pionopsitta, Nandayus, and Guaruba were found for both species. These karyotype descriptions can be a starting point for the genetic monitoring of these two declining species.

  19. Hematological parameters of blue-headed macaw Primolius couloni L. (Psittacidae) in captivity

    OpenAIRE

    Solari, Giovanna; Patronato del Parque de las Leyendas Felipe Benavides Barreda, Lima; Tribeño, David; Patronato del Parque de las Leyendas Felipe Benavides Barreda, Lima; Navarro, Zoila; Patronato del Parque de las Leyendas Felipe Benavides Barreda, Lima; Alvis, Rafael; Laboratorio de Reproducción y Biología del Desarrollo, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú; Pino, José; Laboratorio de Reproducción y Biología del Desarrollo, Instituto de Investigación de Ciencias Biológicas Antonio Raimondi, Facultad de Ciencias Biológicas Universidad Nacional Mayor de San Marcos (UNMSM). Lima – Perú

    2011-01-01

    The Blue-headed macaw (Primolius couloni) is considered a New World endangered parrot. Blood samples were collected from 13 captive blue-headed macaws (7 male, 6 female) housed in the Las Leyendas Zoological Park in Lima, Peru to establish hematologic reference values. Mean values for erythrocytes and leukocytes were 2608 x 103/ml and 10.11 x 103/ml respectively; hematocrit was 50.15% and mean corpuscular volume was 200 fl. The differential leukocyte count showed 64.7 and 25.3% of heterophils...

  20. 78 FR 2239 - Endangered and Threatened Wildlife and Plants; Listing the Blue-Throated Macaw

    Science.gov (United States)

    2013-01-10

    ... life history of blue-throated macaws; it also has local, commercial, and ecosystem importance (Kyle... introduced to Bolivia in the 1600s. After the Second World War, cattle ranching and the associated burning of... neglect), exposure to cold temperatures, or flooding (Kyle 2007a, pp. 1-10). If parents do not have access...

  1. Armenian Astronomical Society (ArAS) activities

    Science.gov (United States)

    Mickaelian, A. M.

    2016-09-01

    A review on the activities and achievements of Armenian Astronomical Society (ArAS) and Armenian astronomy in general during the last years is given. ArAS membership, ArAS electronic newsletters (ArASNews), ArAS webpage, Annual Meetings, Annual Prize for Young Astronomers (Yervant Terzian Prize) and other awards, international relations, presence in international organizations, local and international summer schools, science camps, astronomical Olympiads and other events, matters related to astronomical education, astronomical heritage, amateur astronomy, astronomy outreach and ArAS further projects are described and discussed.

  2. Dormancy breaking in macaw palm [Acrocomia aculeata (Jacq.) Loddiges ex Mart.] seeds

    OpenAIRE

    Rubio Neto,Aurélio; Silva,Fabiano Guimarães; Sales,Juliana de Fátima; Reis,Edésio Fialho dos; Silva,Lailla Queiroz; Campos,Rafael Cândido

    2014-01-01

    This study was performed to improve the speed of and standardize the process for the germination of macaw palm seeds. The effect of mechanical scarification (removal of the tegument in the hilum region), thermal scarification (imbibition of seeds in water at approximately 100ºC for two or four minutes) and chemical scarification (98% sulfuric acid treatment for two or four minutes) were compared to a control (no scarification) in both a germination chamber and a greenhouse, representing trial...

  3. Development of agroclimatic zoning model to delimit the potential growing areas for macaw palm (Acrocomia aculeata)

    Science.gov (United States)

    Falasca, Silvia; Ulberich, Ana; Pitta-Alvarez, Sandra

    2016-07-01

    The growing biodiesel production requires the use of new technologies and alternative feedstocks to maintain the growing demand of this biofuel. The macaw (Acrocomia aculeata) is a palm native to Argentina whose fruits present high oil content. Due to its tolerance to prolonged drought, it is a promising crop for biodiesel and biokerosene production. The aim of this work was to design an agroclimatic zoning model to define the potential growing areas from macaw in Argentina. To define the agroclimatic suitability to produce oil, it was necessary to identify the requirements, limits, and biometeorological tolerance for this palm. In order to define the agroclimatic fitness of this crop in Argentina, the meteorological data corresponding to the period 1981-2010 were employed. The agroclimatic indices were integrated in a Geographic Information System. The maps were superimposed and the overlapping regions delineated the agroclimatic zoning. The agroclimatic zonation classified zones with homogeneous characteristics responding to bioclimatic requirements of this species, resulting in optimal, very suitable, suitable, and nonsuitable areas for macaw cultivation. The authors designed an agroclimatic zoning model based on bibliography. This model can be used in any part of the world, employing the same agroclimatic indices presented in this work.

  4. Development of agroclimatic zoning model to delimit the potential growing areas for macaw palm ( Acrocomia aculeata)

    Science.gov (United States)

    Falasca, Silvia; Ulberich, Ana; Pitta-Alvarez, Sandra

    2017-08-01

    The growing biodiesel production requires the use of new technologies and alternative feedstocks to maintain the growing demand of this biofuel. The macaw ( Acrocomia aculeata) is a palm native to Argentina whose fruits present high oil content. Due to its tolerance to prolonged drought, it is a promising crop for biodiesel and biokerosene production. The aim of this work was to design an agroclimatic zoning model to define the potential growing areas from macaw in Argentina. To define the agroclimatic suitability to produce oil, it was necessary to identify the requirements, limits, and biometeorological tolerance for this palm. In order to define the agroclimatic fitness of this crop in Argentina, the meteorological data corresponding to the period 1981-2010 were employed. The agroclimatic indices were integrated in a Geographic Information System. The maps were superimposed and the overlapping regions delineated the agroclimatic zoning. The agroclimatic zonation classified zones with homogeneous characteristics responding to bioclimatic requirements of this species, resulting in optimal, very suitable, suitable, and nonsuitable areas for macaw cultivation. The authors designed an agroclimatic zoning model based on bibliography. This model can be used in any part of the world, employing the same agroclimatic indices presented in this work.

  5. IgE cross-reactivity between the major peanut allergen Ara h 2 and the non-homologous allergens Ara h 1 and Ara h 3

    Science.gov (United States)

    Ara h 1, a vicilin, Ara h 2, a 2S albumin, and Ara h 3, a legumin, are major33 peanut allergens. Ara h 2 is an important predictor of clinical reactivity to peanut, but co-sensitization to all three allergens is correlated with the severity of patients’ symptoms. We investigated whether co-sensitiza...

  6. Pharmacokinetic characteristics of L-valyl-ara-C and its implication on the oral delivery of ara-C

    Institute of Scientific and Technical Information of China (English)

    Eun-pa CHEON; Hyo-kyung HAN

    2007-01-01

    Aim: To evaluate the pharmacokinetic characteristics of L-valyl-ara-C, a peptidomimetic prodrug of ara-C. Methods: After the synthesis of L-valyl-ara-C, the in vitro stability of L-valyl-ara-C was examined in various biological media. Plasma phannacokinetic profiles of ara-C and L-valyl-ara-C were also evaluated in rats. Results: The degradation of L-valyl-ara-C was negligible in fresh plasma and also in the presence of plasmin over a 2 h incubation period. Furthermore, L-valyl-ara-C appeared to be stable in the leukemia cell homogenates, and subsequently, it was far less cytotoxic than the parent, ara-C in AML2 and L1210cells. The chemical hydrolysis of L-valyl-ara-C was rather accelerated in acidic pH. Following an oral administration of L-valyl-ara-C, the appearance of ara-Cwas observed in plasma although the systemic exposure of the prodrug was much higher than that of ara-C. The bioavailability of ara-C was about 4% via prodrug administration. Conclusion: The amide bond of L-valyl-ara-C was stable against the enzymatic hydrolysis, and the utility of L-valyl-ara-C as an oral delivery sys-tem of ara-C appeared to be limited by its low metabolic conversion to ara-C in rats.

  7. Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management

    Science.gov (United States)

    Berkunsky, Igor; Daniele, Gonzalo; Kacoliris, Federico P.; Díaz-Luque, José A.; Silva Frias, Carmen P.; Aramburu, Rosana M.; Gilardi, James D.

    2014-01-01

    Rediscovered in the wild twenty years ago, the breeding biology of wild Blue-throated Macaws remains largely unexplored, yet is essential to its effective conservation and recovery. Here, we analyse reproductive parameters in an intensively managed wild population of Blue-throated Macaws, providing the first data on the breeding biology of this critically endangered species. During the six-year study period, 2007–2012, the number of active breeding pairs either remained constant or decreased, depending on the site, and no new breeding pairs were discovered despite extensive searching. We documented nesting attempts in natural cavities in dead palms or live hardwoods, and artificial nest boxes. Egg-laying was concentrated during the end of dry season and the beginning of the wet season, August through December. Hatching failure was the greatest cause of egg losses. Half of the breeding attempts of Blue-throated Macaws produced at least one fledging, on average two, after a 85 days nestling period. An average of 4.3 nestlings per year fledged from all known wild nests combined. Each pair lost roughly 65% of its initial reproductive investment at each nesting attempt. In most successful nesting attempts of individualized pairs, a new nesting attempt was not detected the following year. All monitored breeding pairs showed high nest site fidelity, reusing hardwood-tree cavities and nest boxes. Our findings will aid conservation efforts by refining current actions and prompting new approaches towards the conservation and recovery of the Blue-throated Macaw. PMID:24941317

  8. Reproductive parameters in the critically endangered Blue-throated Macaw: limits to the recovery of a parrot under intensive management.

    Directory of Open Access Journals (Sweden)

    Igor Berkunsky

    Full Text Available Rediscovered in the wild twenty years ago, the breeding biology of wild Blue-throated Macaws remains largely unexplored, yet is essential to its effective conservation and recovery. Here, we analyse reproductive parameters in an intensively managed wild population of Blue-throated Macaws, providing the first data on the breeding biology of this critically endangered species. During the six-year study period, 2007-2012, the number of active breeding pairs either remained constant or decreased, depending on the site, and no new breeding pairs were discovered despite extensive searching. We documented nesting attempts in natural cavities in dead palms or live hardwoods, and artificial nest boxes. Egg-laying was concentrated during the end of dry season and the beginning of the wet season, August through December. Hatching failure was the greatest cause of egg losses. Half of the breeding attempts of Blue-throated Macaws produced at least one fledging, on average two, after a 85 days nestling period. An average of 4.3 nestlings per year fledged from all known wild nests combined. Each pair lost roughly 65% of its initial reproductive investment at each nesting attempt. In most successful nesting attempts of individualized pairs, a new nesting attempt was not detected the following year. All monitored breeding pairs showed high nest site fidelity, reusing hardwood-tree cavities and nest boxes. Our findings will aid conservation efforts by refining current actions and prompting new approaches towards the conservation and recovery of the Blue-throated Macaw.

  9. Reproductive parameters in the critically endangered Blue-throated Macaw: limits to the recovery of a parrot under intensive management.

    Science.gov (United States)

    Berkunsky, Igor; Daniele, Gonzalo; Kacoliris, Federico P; Díaz-Luque, José A; Silva Frias, Carmen P; Aramburu, Rosana M; Gilardi, James D

    2014-01-01

    Rediscovered in the wild twenty years ago, the breeding biology of wild Blue-throated Macaws remains largely unexplored, yet is essential to its effective conservation and recovery. Here, we analyse reproductive parameters in an intensively managed wild population of Blue-throated Macaws, providing the first data on the breeding biology of this critically endangered species. During the six-year study period, 2007-2012, the number of active breeding pairs either remained constant or decreased, depending on the site, and no new breeding pairs were discovered despite extensive searching. We documented nesting attempts in natural cavities in dead palms or live hardwoods, and artificial nest boxes. Egg-laying was concentrated during the end of dry season and the beginning of the wet season, August through December. Hatching failure was the greatest cause of egg losses. Half of the breeding attempts of Blue-throated Macaws produced at least one fledging, on average two, after a 85 days nestling period. An average of 4.3 nestlings per year fledged from all known wild nests combined. Each pair lost roughly 65% of its initial reproductive investment at each nesting attempt. In most successful nesting attempts of individualized pairs, a new nesting attempt was not detected the following year. All monitored breeding pairs showed high nest site fidelity, reusing hardwood-tree cavities and nest boxes. Our findings will aid conservation efforts by refining current actions and prompting new approaches towards the conservation and recovery of the Blue-throated Macaw.

  10. Guacamaya: símbolo de temporalidad y fertilidad en dos ejemplos de pintura mural The Macaw: a Symbol of Temporality and Fertility in Two Examples from Mural Painting

    Directory of Open Access Journals (Sweden)

    María de Lourdes Navarijo Ornelas

    2012-01-01

    Full Text Available En el pensamiento prehispánico, la guacamaya (Ara macao y Ara militaris ocupó un lugar preferente, como lo atestigua su imagen plasmada en los murales creados por diferentes pueblos, como el maya, el zapoteca, el teotihuacano, o como se ve en Cacaxtla. Esto no es una coincidencia, por lo que este estudio tiene por objeto analizar y reconocer la identidad taxonómica de los individuos recreados, además de argumentar su presencia en el lenguaje pictórico como un medio de expresión gráfica irrefutable. Para este fin se trabaja con la pintura mural de dos sitios arqueológicos: el mural 1, Los pájaros, de la Estructura 86 en Xelhá, situado en la zona norte de Quintana Roo; y el mural oriente del Templo Rojo en Cacaxtla, Tlaxcala. De acuerdo con las modalidades de representación gráfica y bajo los criterios de integración temática se aborda la lectura de las escenas considerando a los otros elementos iconográficos que las integran. El resultado es una propuesta de participación simbólica de las guacamayas enfocada en la abstracción del tiempo a partir de la conducta diaria y estacional de esta especie de psitácido ruidosa (y de plumaje llamativo y sugerente; también se considera la asociación de estos animales con los conceptos de vida, movimiento y temporalidad, y con el Sol y el agua (este último como el elemento primordial vinculado con la fertilidad.In pre-Hispanic thought, Macaw (Ara macao and Ara militaris occupy a place of honour, as witness its image captured in the murals created by different peoples, such as the Maya, the Zapotec, the ancient inhabitants of Teotihuacan and Cacaxtla. This is not a coincidence, which is why this study aims to analyze and recognize the taxonomic identity of recreated individuals, as well as argue their presence in the pictorial language as a mean of irrefutable graphic expression. To this end works with mural paintings from two archaeological sites are analyzed: the mural 1 "The birds" of

  11. SUBSTRATE, LIME, PHOSPHORUS AND TOPDRESS FERTILIZATION IN MACAW PALM SEEDLING PRODUCTION

    Directory of Open Access Journals (Sweden)

    Leonardo Duarte Pimentel

    2016-04-01

    Full Text Available ABSTRACT The macaw palm [Acrocomia aculeata (Jacq. Lood. ex Mart] has been domesticated to subsidize biodiesel production programs in Brazil. However, little is known about the seedling production of this species. This study aimed to evaluate substrate mixtures, limestone and phosphorus rates for substrate amendment and topdressing frequency in macaw palm seedlings. Three trials were conducted in a greenhouse up to six months of nursery cultivation. Trial 1: determination of percent mineral and organic fractions of seven substrate mixtures. Trial 2: evaluation of four limerates for soil amendment versus four phosphorus rates. Trial 3: evaluation of N, K and Mg topdressing frequency. Significant differences were found in the three trials for most of the variables (plant height, leaf number, shoot dry mass, root dry mass, vigor and bulb diameter. The main results obtained were as follow: Trial1 - the best seedling growth was observed in substrates with at least 25% organic matter. Trial2 -lime rates ranging from 0.50 to 1.25 kg associated with 3 to 4 kg of single superphosphate per m3 of substrate provided the best seedling growth. Trial 3 - topdressing fertilization provided better development of seedlings regardless of frequency.

  12. Enzyme activity and reserve mobilization during Macaw palm ( Acrocomia aculeata seed germination

    Directory of Open Access Journals (Sweden)

    Elisa Monteze Bicalho

    2016-01-01

    Full Text Available ABSTRACT Reserve mobilization in seeds occurs after visible germination, which is marked by the protrusion of the radicle or cotyledonary petiole, as in species of Arecaceae. Acrocomia aculeata (macaw palm, usually produces hard seeds whose endosperm has mannan-rich cell walls. We investigated the composition of storage compounds in macaw palm seed and the roles of two enzymes (endo-β-mannanase, α-galactosidase during and after germination. The seeds were firstly submitted to pre-established protocol to overcome dormancy and promote germination. Enzyme activity in both embryo and endosperm were assayed from the initiation of germinative activities until leaf sheath appearance, and the status of seed structures and reserve compounds were evaluated. Protein content of the embryo decreased with the initiation of imbibition while the lipid content began decreasing six days after removal of the operculum. Increases in enzyme activity and starch content were both observed after visible germination. We suggest that endo-β-mannanase and α-galactosidase become active immediately at germination, facilitating haustorium expansion and providing carbohydrates for initial seedling development. Protein is the first storage compound mobilized during early imbibition, and the observed increase in the starch content of the haustorium was related to lipid degradation in that organ and mannan degradation in the adjacent endosperm.

  13. Do the structures of macaw palm fruit protect seeds in a fire-prone environment?

    Directory of Open Access Journals (Sweden)

    Elisa Monteze Bicalho

    Full Text Available ABSTRACT Fire is an abiotic disturbance that regulates vegetation structure and biodiversity. Some plant species have adapted to fire prone environments by evolving protective structures. Acrocomia aculeata (macaw palm is widely distributed throughout tropical America, and is found in environments continuously influenced by anthropogenic fire. We aimed to determine whether the fruit characteristics of A. aculeata enable seeds to resist the effects of fire and also the consequent effects of fire on fruit biometric traits and embryo viability. After a fire event in a region of pasture-forest transition, we marked 30 individuals of A. aculeata. The trees were separated by UPGMA analysis into 5 groups according to fire exposure, ranging from trees with no exposure to trees with fruit completely exposed to fire. Fruit exposure to high temperatures led to lower values in fruit fresh weight, length, density, and processable mass.Fire had no significant effect on seed biometric variables, because of the structures of the fruit, including its lignified endocarp and its insulating and mucilaginous mesocarp. These structures helped to maintain the embryos viability by preventing oxidative damage. In conclusion, the fruit structure of the macaw palm may facilitate seed persistence, even when subject to increasingly frequent fire events.

  14. Control of macaw palm seed germination by the gibberellin/abscisic acid balance.

    Science.gov (United States)

    Bicalho, E M; Pintó-Marijuan, M; Morales, M; Müller, M; Munné-Bosch, S; Garcia, Q S

    2015-09-01

    The hormonal mechanisms involved in palm seed germination are not fully understood. To better understand how germination is regulated in Arecaceae, we used macaw palm (Acrocomia aculeata (Jacq.) Lodd. Ex Mart.) seed as a model. Endogenous hormone concentrations, tocopherol and tocotrienol and lipid peroxidation during germination were studied separately in the embryo and endosperm. Evaluations were performed in dry (D), imbibed (I), germinated (G) and non-germinated (NG) seeds treated (+GA3 ) or not treated (control) with gibberellins (GA). With GA3 treatment, seeds germinated faster and to a higher percentage than control seeds. The +GA3 treatment increased total bioactive GA in the embryo during germination relative to the control. Abscisic acid (ABA) concentrations decreased gradually from D to G in both tissues. Embryos of G seeds had a lower ABA content than NG seeds in both treatments. The GA/ABA ratio in the embryo was significantly higher in G than NG seeds. The +GA3 treatment did not significantly affect the GA/ABA ratio in either treatment. Cytokinin content increased from dry to germinated seeds. Jasmonic acid (JA) increased and 1-aminocyclopropane-1-carboylic acid (ACC) decreased after imbibition. In addition, α-tocopherol and α-tocotrienol decreased, while lipid peroxidation increased in the embryo during germination. We conclude that germination in macaw palm seed involves reductions in ABA content and, consequently, increased GA/ABA in the embryo. Furthermore, the imbibition process generates oxidative stress (as observed by changes in vitamin E and MDA).

  15. Ara h 6 complements Ara h 2 as an important marker for IgE reactivity to peanut.

    Science.gov (United States)

    Koid, Audrey E; Chapman, Martin D; Hamilton, Robert G; van Ree, Ronald; Versteeg, Serge A; Dreskin, Stephen C; Koppelman, Stef J; Wünschmann, Sabina

    2014-01-08

    The similarities of two major peanut allergens, Ara h 2 and Ara h 6, in molecular size, amino acid sequence, and structure have made it difficult to obtain natural Ara h 6 free of Ara h 2. The objectives of this study were to purify natural Ara h 6 that is essentially free of Ara h 2 and to compare its IgE reactivity and potency in histamine release assays to Ara h 2. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of the highly purified allergen (basophil histamine release assays than Ara h 2. Purified Ara h 6 will be useful for diagnostic IgE antibody assays as well as molecular and cellular studies to investigate the immunological mechanisms of peanut allergy.

  16. Osteossíntese de tibiotarso com miniplaca de titânio em Arara Canindé (Ara ararauna

    Directory of Open Access Journals (Sweden)

    I.S. Dal-Bó

    2011-08-01

    Full Text Available Among the surgical problems of birds, fractures are the most prevalent, and the long bones of the wings and pelvic limbs are the most frequently affected. The success of orthopedic surgery in birds is directly related to the techniques used to undo the mechanical forces of a fracture. At the veterinary teaching hospital a psitacid from the Ara ararauna (blue-and-yellow-macaw species with a clinical history of trauma in the cage was treated. Craniocaudal and lateral radiographs of the left limb demonstrated a mid-diaphyseal fracture of the tibiotarsus. The bird was sent to surgery. The patient was anesthetized with isufluorane and for the pre-anesthesic medicacion methadone was administrated. A medial surgical approach to the tibiotarsus was made and fracture reduction was performed. The fracture was stabilized through a titanium miniplate (system 2mm fixed medially on the tibiotarsus with 6 cortical miniscrews, being 3 proximal and 3 distal to the fracture site. In this case, there was no complication in placing the miniplate and miniscrews, resulting in a satisfactory alignment of the fragments and causing an efficient reduction of the diaphyseal fracture of tibiotarsus with functional return of the limb and bone consolidation.

  17. Comparison between MACAW and T_Lohi protocols for underwater networks.

    Directory of Open Access Journals (Sweden)

    Erik Ortiz Guerra

    2011-02-01

    Full Text Available The development of underwater networks presents great challenges, most of which are related to the complexity of the communication channel. The main difficulties to face in the underwater channel are the restricted bandwidth and the low propagation speed. Due to these difficulties, it is necessary the development of new and more competent communication protocols in order to obtain higher performance and minimize the energy consumption. Therefore, this paper presents a comparative evaluation between two medium access controls (MAC: MACAW and T_Lohi. Both protocols are based on random access mechanism, the first uses request to send (RTS; clear to send (CTS and acknowledgement (ACK messages to regulate transmissions while the second uses short duration tones which can be detected instantaneously. Thus, this study focuses on the performance, collisions and efficiency of these protocols in order to reserve the communication channel, whereby it highlights the advantages and deficiencies of each protocol in the underwater communication networks.

  18. Children with peanut allergy recognize predominantly Ara h2 and Ara h6, which remains stable over time

    NARCIS (Netherlands)

    Flinterman, A.E.; Hoffen, E. van; Hartog Jager, C.F. den; Koppelman, S.; Pasmans, S.G.; Hoekstra, M.O.; Bruijnzeel-Koomen, C.A.; Knulst, A.C.; Knol, E.F.

    2007-01-01

    Background: In peanut-allergic adults, IgE is mainly directed to Ara h1 and Ara h2. More recently, a role for Ara h6 has been suggested. In contrast to adults, IgE in children can fluctuate over time. Therefore, children may have a more dynamic reactivity to peanut. Objective: To examine the IgE rea

  19. A phase 1 study of heat/phenol‐killed, E. coli‐encapsulated, recombinant modified peanut proteins Ara h 1, Ara h 2, and Ara h 3 (EMP‐123) for the treatment of peanut allergy

    National Research Council Canada - National Science Library

    Wood, R. A; Sicherer, S. H; Burks, A. W; Grishin, A; Henning, A. K; Lindblad, R; Stablein, D; Sampson, H. A

    2013-01-01

    .... This was a phase 1 trial of EMP-123, a rectally administered suspension of recombinant Ara h 1, Ara h 2, and Ara h 3, modified by amino acid substitutions at major IgE-binding epitopes, encapsulated...

  20. Development of immunoaffinity chromatographic method for Ara h 2 isolation.

    Science.gov (United States)

    Wu, Zhihua; Zhang, Ying; Zhan, Shaode; Lian, Jun; Zhao, Ruifang; Li, Kun; Tong, Ping; Li, Xin; Yang, Anshu; Chen, Hongbing

    2017-03-01

    Ara h 2 is considered a major allergen in peanut. Due to the difficulty of separation, Ara h 2 had not been fully studied. Immunoaffinity chromatography (IAC) column can separate target protein with high selectivity, which made it possible to purify Ara h 2 from different samples. In this study, IAC method was developed to purify Ara h 2 and its effect was evaluated. By coupling polyclonal antibody (pAb) on CNBr-activated Sepharose 4B, the column for specific extraction was constructed. The coupling efficiency of the IAC column was higher than 90%, which made the capacity of column reached 0.56 mg per 0.15 g medium (dry weight). The recovery of Ara h 2 ranged from 93% to 100% for different concentrations of pure Ara h 2 solutions in 15 min. After using a column 10 times, about 88% of the column capacity remained. When applied to extract Ara h 2 from raw peanut protein extract and boiled peanut protein extract, the IAC column could recovery 94% and 88% target protein from the mixture. SDS-PAGE and Western blotting analysis confirmed the purified protein was Ara h 2, its purity reached about 90%. Significantly, the IAC column could capture dimer of Ara h 2, which made it feasible to prepared derivative of protein after processing. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Ulcerative dermatitis and valvular endocarditis associated with Staphylococcus aureus in a hyacinth macaw (Anadorhynchus hyacinthinus).

    Science.gov (United States)

    Huynh, Minh; Carnaccini, Silvia; Driggers, Todd; Shivaprasad, H L

    2014-06-01

    An 18-yr-old male hyacinth macaw (Anadorhynchus hyacinthinus) was found dead in his aviary with no preexisting signs. The bird had a chronic history of feather damaging behavior, with severe ulcerative dermatitis. Pathologic findings revealed a vegetative valvular endocarditis, myocarditis, septicemia, chronic severe glomerulonephritis, and thyroid dysplasia. Staphylococcus aureus was isolated from the valve, the liver, and the skin. Repeated trauma and low-rate bacteriemia may have contributed to the development of endocarditis. Translocation of S. aureus skin infection in the bloodstream may lead to subacute endocarditis in humans and such mechanism is suspected in this case. This case suggests that endocarditis associated with S. aureus septicemia is a potential complication of feather damaging behavior. This case also reports a systemic complication of ulcerative dermatitis secondary to feather damaging behavior. Endocarditis has been poorly reported in psittacine species, and such medical complication of feather damaging behavior has never been reported to our knowledge. Furthermore, S. aureus is a bacteria of public health concern and should be integrated into the differential when pet parrots with dermatitis are in proximity to owners.

  2. Seed dispersal and predation of Buchenavia tomentosa Eichler (Combretaceae in a Cerrado sensu stricto, midwest Brazil

    Directory of Open Access Journals (Sweden)

    J. Farias

    Full Text Available Abstract The ecology of seed dispersal is critical to understand the patterns of distribution and abundance of plant species. We investigated seed dispersal aspects associated with the high abundance of Buchenavia tomentosa in the Serra Azul State Park (PESA. We estimated fruit production and conducted fruit removal experiments. We carried out diurnal and nocturnal observations on frugivory as well as germination tests. Fruiting occurred in the dry season and totaled 1,365,015 ± 762,670 fruits.ha–1. B. tomentosa fruits were utilized by eight animal species. The lowland tapir (Tapirus terrestris was considered the main seed disperser. Leafcutter ants (Atta laevigata and Atta sexdens participated in the seed cleaning and occasionally dispersed seeds. The beetle Amblycerus insuturatus, blue-and-yellow macaw (Ara ararauna and red-and-green macaw (Ara chloropterus were considered pre-dispersal seed predators. The seeds manually cleaned presented higher germination rate (100% and speed index (4.2 seeds.d–1 than that of seeds with pulp. Germination of seeds found in tapirs’feces was 40%, while for the seeds without pulp it was 25%. The high abundance of B. tomentosa in the cerrado of PESA may be due to massive fruit production, low rates of seed predation, and efficient seed dispersal by tapirs, occurring before the rains which promote germination and recruitment of this species.

  3. Seed dispersal and predation of Buchenavia tomentosa Eichler (Combretaceae) in a Cerrado sensu stricto, midwest Brazil.

    Science.gov (United States)

    Farias, J; Sanchez, M; Abreu, M F; Pedroni, F

    2015-11-01

    The ecology of seed dispersal is critical to understand the patterns of distribution and abundance of plant species. We investigated seed dispersal aspects associated with the high abundance of Buchenavia tomentosa in the Serra Azul State Park (PESA). We estimated fruit production and conducted fruit removal experiments. We carried out diurnal and nocturnal observations on frugivory as well as germination tests. Fruiting occurred in the dry season and totaled 1,365,015 ± 762,670 fruits.ha-1. B. tomentosa fruits were utilized by eight animal species. The lowland tapir (Tapirus terrestris) was considered the main seed disperser. Leafcutter ants (Atta laevigata and Atta sexdens) participated in the seed cleaning and occasionally dispersed seeds. The beetle Amblycerus insuturatus, blue-and-yellow macaw (Ara ararauna) and red-and-green macaw (Ara chloropterus) were considered pre-dispersal seed predators. The seeds manually cleaned presented higher germination rate (100%) and speed index (4.2 seeds.d-1) than that of seeds with pulp. Germination of seeds found in tapirs'feces was 40%, while for the seeds without pulp it was 25%. The high abundance of B. tomentosa in the cerrado of PESA may be due to massive fruit production, low rates of seed predation, and efficient seed dispersal by tapirs, occurring before the rains which promote germination and recruitment of this species.

  4. Study on the progress of purification and identification methodsof allergen Ara h1 and Ara h2 from peanut%花生致敏蛋白 Ara h1和 Ara h2纯化鉴定方法研究进展

    Institute of Scientific and Technical Information of China (English)

    田阳; 饶欢; 陶莎; 薛文通

    2016-01-01

    The specific extraction and purification processes as well as the identification method of allergen Ara h1 and Ara h2 from peanut were introduced.%对主要花生过敏蛋白 Ara h1和 Ara h2的提取纯化方法以及纯化后 Ara h1、Ara h2的鉴定方法进行了综述。

  5. ARA290 : a novel treatment for neuropathic pain in sarcoidosis

    NARCIS (Netherlands)

    Heij, L.

    2016-01-01

    The general aim of this thesis is to investigate small fiber neuropathy in sarcoidosis and to asses whether ARA290 is a possible new agent to treat the neuropathic complaints in sarcoidosis population. The results of the various ARA290 trials in painful sarcoidosis are discussed. Painful neuropathy

  6. Distribución actual y potencial de la guacamaya verde en Michoacán, México Present and potential distribution of the military macaw in Michoacán, Mexico

    Directory of Open Access Journals (Sweden)

    Tiberio C. Monterrubio-Rico

    2011-12-01

    nicho para estimar la distribución real y potencial de la especie.The military macaw (Ara militaris is an endangered species in Mexico, it has disappeared from states on the south Pacific. However, actual studies providing distribution information on the different states are inexistent. The main objective of this study was to provide information concerning its actual distribution on Michoacán. We evaluated 215 localities from 3 physiographic regions that present suitable ecological conditions during the 2002-2008 period. Its actual distribution was analyzed using geographic information systems, and its potential distribution was obtained with the genetic algorithm for rule set prediction (GARP. We evaluated the coincidence between field records and the distribution of suitable ecological conditions (elevation, vegetation for the species, generated by ecological niche modeling. We confirmed its presence on the Municipalities of La Huacana, Churumuco, and Arteaga, confirming its distribution on 2 359 km² from the region known as the lower Balsas basin. In addition, we obtained records on the Sierra Madre del Sur, however there are large areas from this region that require field confirmation, and the distribution for this region can still be considered as potential. The military macaw inhabited the Michoacán coast in 1980, today the species its been extirpated from an estimated area of 1 303 km². Considering the extent of the confirmed distribution, and the extent of the area with suitable ecological conditions that require field confirmation, we assume that the species may have 8 285 km² of distribution on the state. Additionally we localized 7 roosting and nesting areas of the species. The area known as Chorros del Varal, in the municipality of Los Reyes is important because is on the border limits with Jalisco state and could be a contact area between macaw populations of the 2 states. This is the first state level study in the country that combines actual field

  7. Boiling peanut Ara h 1 results in the formation of aggregates with reduced allergenicity

    NARCIS (Netherlands)

    F. Blanc; Y.M. Vissers; K. Adel-Patient; N.M. Rigby; A.R. Mackie; A.P. Gunning; N.K. Wellner; P.S. Skov; L. Przybylski-Nicaise; B. Ballmer-Weber; L. Zuidmeer-Jongejan; Z. Szepfalusi; J. Ruinemans-Koerts; A.P.H. Jansen; H. Bernard; J.M. Wal; H.F.J. Savelkoul; H.J. Wichers; E.N.C. Mills

    2011-01-01

    Scope: Roasting rather than boiling and Maillard modifications may modulate peanut allergenicity. We investigated how these factors affect the allergenic properties of a major peanut allergen, Ara h 1. Methods and results: Ara h 1 was purified from either raw (N-Ara h 1) or roasted (R-Ara h 1) peanu

  8. Peanut allergen Ara h 3: Isolation from peanuts and biochemical characterization.

    NARCIS (Netherlands)

    Koppelman, S.J.; Knol, E.F.; Vlooswijk, R.A.A.; Wensing, M.; Knulst, A.C.; Hefle, S.L.; Gruppen, H.; Piersma, S.R.

    2003-01-01

    Background: Peanut allergen Ara h 3 has been the subject of investigation for the last few years. The reported data strongly depend on recombinant Ara h 3, since a purification protocol for Ara h 3 from peanuts was not available. Methods: Peanut allergen Ara h 3 (glycinin), was purified and its post

  9. Specific IgE to peanut 2S albumin Ara h 7 has a discriminative ability comparable to Ara h 2 and 6.

    Science.gov (United States)

    Blankestijn, Mark A; Otten, Henny G; Suer, Waltraud; Weimann, Alf; Knol, Edward F; Knulst, André C

    2017-09-14

    Little is known on the clinical relevance of peanut 2S albumin Ara h 7. To investigate the discriminative ability of Ara h 7 in peanut allergy and assess the role of cross-reactivity between Ara h 2, 6 and Ara h 7 isoforms. Sensitization to recombinant peanut storage proteins Ara h 1, 2, 3, 6 and 7 was assessed using a line blot in sera from 40 peanut tolerant and 40 peanut allergic patients, based on food challenge outcome. A dose-dependent ELISA inhibition experiment was performed with recombinant Ara h 2, 6 and Ara h 7 isoforms. For Ara h 7.0201 an area under the ROC curve was found of 0.83, comparable to Ara h 2 (AUC 0.81) and Ara h 6 (AUC 0.85). Ara h 7 intensity values strongly correlated with those from Ara h 2 and 6 (rs =0.81). Of all patients sensitized to 2S albumins Ara h 2, 6 or 7, the majority was co-sensitized to all three (n=24, 68%), although mono-sensitization to either 2S albumin was also observed in selected patients (Ara h 2: n=6, 17%; Ara h 6: n=2, 6%; Ara h 7: n=2, 6%). Binding to Ara h 7.0101 could be strongly inhibited by Ara h 7.0201, but not the other way around. Specific IgE against Ara h 7.0201 has a predictive ability for peanut allergy similar to Ara h 2 and 6, and possesses unique IgE epitopes as well as epitopes shared between the other Ara h 7 isoform and Ara h 2 and 6. While co-sensitization to all three 2S albumins is most common, mono-sensitization to either Ara h 2, 6 or 7 occurs in selected patients, leading to a risk of misdiagnosis when testing for a single 2S albumin. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  10. Boiling peanut Ara h 1 results in the formation of aggregates with reduced allergenicity.

    Science.gov (United States)

    Blanc, Fany; Vissers, Yvonne M; Adel-Patient, Karine; Rigby, Neil M; Mackie, Alan R; Gunning, A Patrick; Wellner, Nikolaus K; Skov, Per S; Przybylski-Nicaise, Laetitia; Ballmer-Weber, Barbara; Zuidmeer-Jongejan, Laurian; Szépfalusi, Zsolt; Ruinemans-Koerts, Janneke; Jansen, Ad P H; Bernard, Hervé; Wal, Jean-Michel; Savelkoul, Huub F J; Wichers, Harry J; Mills, E N Clare

    2011-12-01

    Roasting rather than boiling and Maillard modifications may modulate peanut allergenicity. We investigated how these factors affect the allergenic properties of a major peanut allergen, Ara h 1. Ara h 1 was purified from either raw (N-Ara h 1) or roasted (R-Ara h 1) peanuts. Boiling (100°C 15 min; H-Ara h 1) resulted in a partial loss of Ara h 1 secondary structure and formation of rod-like branched aggregates with reduced IgE-binding capacity and impaired ability to induce mediator release. Glycated Ara h 1 (G-Ara h 1) formed by boiling in the presence of glucose behaved similarly. However, H- and G-Ara h1 retained the T-cell reactivity of N-Ara h 1. R-Ara h 1 was denatured, comprised compact, globular aggregates, and showed no evidence of glycation but retained the IgE-binding capacity of the native protein. Ara h 1 aggregates formed by boiling were morphologically distinct from those formed by roasting and had lower allergenic activity. Glycation had no additional effect on Ara h 1 allergenicity compared with heating alone. Taken together with published data on the loss of Ara h 2/6 from boiled peanuts, this supports the hypothesis that boiling reduces the allergenicity of peanuts. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  11. Standardization of RP-HPLC methods for the detection of the major peanut allergens Ara h 1, Ara h 2 and Ara h 3

    Science.gov (United States)

    Crude peanut extract (CPE) was analyzed for three major allergens (Ara h 1, h 2, and h 3) using a C12 and a C18 column at two wavelengths (280 and 220 nm) and under different solvent conditions. HPLC profiles were compared for retention time, resolution, and peak heights. CPE samples were spiked wit...

  12. Religion and Cult in the ara Pacis Augustae

    Directory of Open Access Journals (Sweden)

    José A. Delgado Delgado

    2016-11-01

    Full Text Available The ara Pacis Augustae, in all its magnificence as a work of art and all its powerful political implications as a creation of the imperial power, was essentially an altar, i.e. an official place of cult subject to certain religious rules and having a specific ceremonial calendar. Accordingly, this research topic has come about and been developed to present, discuss and try to provide a response to the problems that the ara Pacis poses as a place of cult. The debate is organized and is part of the broader context of the nature of the arae in the Roman cultic practice and is predicated on the analysis of the textual tradition of the ara Pacis and the archaeological evidence itself. As a result, we present the process of ‘foundation’ of the ara Pacis Augustae to its full extent and complexity, both in its own ritual aspects themselves as well as in its physical representation as a monument.

  13. Effect of roasting on the allergenicity of major peanut allergens Ara h 1 and Ara h 2/6: the necessity of degranulation assays

    DEFF Research Database (Denmark)

    Vissers, Y. M.; Iwan, M.; Adel-Patient, K.;

    2011-01-01

    process on the allergenicity of Ara h 1 and a mix of 2S albumins from peanut (Ara h 2/6). Methods Ara h 1 and Ara h 2/6 were purified from raw peanuts and heated in a dry form for 20 min at 145 degrees C in the presence (R + g) or absence (R - g) of glucose, and soluble proteins were then extracted. Sera...... obtained from 12 well-characterized peanut-allergic patients were used to assess the IgE binding and degranulation capacities of the allergens. Results Extensive heating at low moisture resulted in the hydrolysis of both Ara h 1 and Ara h 2/6. However, in contrast to Ara h 2/6, soluble R + g Ara h 1 formed...... large aggregates. Although the IgE-binding capacity of R + g and R - g Ara h 1 was decreased 9000- and 3.6-fold, respectively, compared with native Ara h 1, their capacity to elicit mediator release was increased. Conversely, both the IgE-binding capacity and the degranulation capacity of R - g Ara h 2...

  14. Arañas argentinas : una introducción

    OpenAIRE

    Gualtieri, Ariel Félix (Ph.D.)

    2015-01-01

    El libro pretende brindar un recorrido inicial a través de la fauna de arañas de la Argentina. Está organizado en veintiún capítulos. En el primero de ellos se presentan características generales de las arañas. Cada uno de los capítulos siguientes corresponde a una familia distinta. Se exponen aspectos morfológicos, fisiológicos y etológicos, entre otros. Las arañas de interés sanitario presentes en el país se encuentran incluidas. El libro cuenta con más de 120 fotografías, todas fueron real...

  15. Production of recombinant peanut allergen Ara h 2 using Lactococcus lactis

    DEFF Research Database (Denmark)

    Glenting, J.; Poulsen, Lars K.; Kato, K.;

    2007-01-01

    of the major allergens in peanut have been described. However, for therapeutic usage more information about the individual allergenic components is needed. In this paper we report recombinant production of the Ara h 2 peanut allergen using L. lactis. Results: A synthetic ara h 2 gene was cloned into an L....... lactis expression plasmid containing the P170 promoter and the SP310mut2 signal sequence. Flask cultures grown overnight showed secretion of the 17 kDa Ara h 2 protein. A batch fermentation resulted in 40 mg/ L recombinant Ara h 2. Purification of Ara h 2 from the culture supernatant was done...... by hydrophobic exclusion and size separation. Mass spectrometry and N- terminal analysis showed a recombinant Ara h 2 of full length and correctly processed by the signal peptidase. The immunological activity of recombinant Ara h 2 was analysed by ELISA using antibodies specific for native Ara h 2...

  16. Penal Innovation in New Zealand: He Ara Hou.

    Science.gov (United States)

    Newbold, Greg; Eskridge, Chris

    1994-01-01

    Explores prison history/development in New Zealand, focusing on recent implementation of progressive prison operation/management program, He Ara Hou. Notes extremely positive results of program, such as higher administrative efficiency; greatly decreased levels of internal disorder; competent, stable workforce; and human product whose senses of…

  17. Mixed antibody and T cell responses to peanut and the peanut allergens Ara h 1, Ara h 2, Ara h 3 and Ara h 6 in an oral sensitization model

    NARCIS (Netherlands)

    Wijk, F. van; Hartgring, S.; Koppelman, S.J.; Pieters, R.; Knippels, L.M.J.

    2004-01-01

    Background: Peanut allergy is known for its severity and persistence through life. Several peanut proteins have been identified as allergenic and are indicated as Ara h 1-7. Very little is known about the mechanisms that underlie sensitization to peanut proteins. Objective: The purpose of the presen

  18. Mixed antibody and T cell responses to peanut and the peanut allergens Ara h 1, Ara h 2, Ara h 3 and Ara h 6 in an oral sensitization model

    NARCIS (Netherlands)

    Wijk, F. van; Hartgring, S.; Koppelman, S.J.; Pieters, R.; Knippels, L.M.J.

    2004-01-01

    Background: Peanut allergy is known for its severity and persistence through life. Several peanut proteins have been identified as allergenic and are indicated as Ara h 1-7. Very little is known about the mechanisms that underlie sensitization to peanut proteins. Objective: The purpose of the presen

  19. Crystal structure of peanut (Arachis hypogaea) allergen Ara h 5

    Science.gov (United States)

    Profilins from numerous species are known to be allergens, including food allergens, such as peanut (Arachis hypogaea) allergen Ara h 5, and pollen allergens, such as birch allergen Bet v 2. Patients with pollen allergy can also cross-react to peanut. Structural characterization of allergens will al...

  20. Penal Innovation in New Zealand: He Ara Hou.

    Science.gov (United States)

    Newbold, Greg; Eskridge, Chris

    1994-01-01

    Explores prison history/development in New Zealand, focusing on recent implementation of progressive prison operation/management program, He Ara Hou. Notes extremely positive results of program, such as higher administrative efficiency; greatly decreased levels of internal disorder; competent, stable workforce; and human product whose senses of…

  1. Evaluation of Bioequivalency and Toxicological Effects of Three Sources of Arachidonic Acid (ARA) in Domestic Piglets

    OpenAIRE

    2011-01-01

    Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are routinely added to infant formula to support growth and development. We evaluated the bioequivalence and safety of three ARA-rich oils for potential use in infant formula using the neonatal pig model. The primary outcome for bioequivalence was brain accretion of ARA and DHA. Days 3 to 22 of age, domestic pigs fed one of three formulas, each containing ARA at ~0.64% and DHA at ~0.34% total fatty acids (FA). Control diet ARA was provided...

  2. Pacheco's parrot disease in macaws of the Lisbon's Zoological Garden. Description of an outbreak, diagnosis and management, including vaccination.

    Science.gov (United States)

    Barão Da Cunha, M; Correia, J J; Fagulha, T; Fevereiro, M; Peleteiro, M C; Vollrath, G; Kaleta, E F

    2007-11-01

    The Lisbon's Zoological Garden, Portugal, has maintained for many years a large collection of psittacine birds without any serious health problems. Unexpectedly, in April 1999, a total of nine macaws died after a short period of illness. Clinical signs consisted mainly of anorexia, ruffled feathers and yellowish droppings. A herpesvirus was isolated from brain, trachea, lung, liver, spleen, kidney and intestine of each of the examined dead birds, confirming that all animals succumbed during viraemia. Serotyping of the isolate in cross neutralization tests with reference sera prove that the outbreak was caused by serotype 3 of Pacheco's parrot disease herpesviruses. An autogenous, formalin-inactivated vaccine with adjuvant (aluminium hydroxid gel) was prepared from one of the isolates and injected intramuscularly 14 days and six weeks after the onset of mortality in an attempt to protect the remaining psittacine birds in the zoo from the disease. The autogenous vaccine was well tolerated and was able to rapidly stop virus spread and morbidity and mortality among the psittacine birds. Follow-up studies demonstrate that all nine blood samples from vaccinated birds obtained nine month' after the second vaccination contain neutralizing antibodies. Twenty five month' after vaccination two out of four serum samples were still antibody positive. No herpesvirus was isolated from faecal samples nine and twenty five months after the onset of the outbreak. These data prove that the autogenous vaccine played a major role in containing a severe outbreak of Pacheco's parrot disease in a large collection of psittacine birds.

  3. Ara h 6 sensitization in peanut allergy: friend, foe or innocent bystander?

    Science.gov (United States)

    Tontini, C; Marinangeli, L; Maiello, N; Abbadessa, S; Villalta, D; Antonicelli, L

    2017-01-01

    The clinical role of Ara h 6 sensitization in peanut allergy is a current matter of debate. We investigated the role of Ara h 6 sensitization patterns in a sample of young adults from different Italian cities. Sera of 33 patients with specific IgE against Ara h 6 were selected. According to clinical symptoms upon peanut ingestion, patients were divided into severe reaction (SR) and mild-tolerant (MT) subgroups. While the SR group mainly showed sensitization patterns involving Ara h 2 and other major allergenic components, a previously undescribed association between Ara h 6 and Ara h 9 was found in the MT group. This pattern seems to be clustered in Mediterranean Italy and associated with Pru p 3 sensitization. This finding might shed a new light on the role of Ara h 6 sensitization in peanut allergy.

  4. Affordable Resins and Adhesives From Optimized Soybean Varieties (ARA Program)

    Energy Technology Data Exchange (ETDEWEB)

    Dr. Richard WOol; Dr. X. Susan Sun; Rich Chapas

    2004-04-21

    The Mission of the ARA Program was to develop the Corporate Infrastructure to mass-produce new bio-based materials from Soybeans. The resins were integrated with the bio-fuels program. (1) to research, develop, and commercialize low cost adhesives and resins from soy oil and protein, the co-products of the soy bio-diesel process. (2) to study structure-functionality of soy oil and proteins at molecular and genomic levels

  5. Un ara dedicada a los dracones hallada en Saguntum (Valencia)

    OpenAIRE

    Aranegui Gascó, Carmen; Hernández Hervás, Emilia

    2014-01-01

    Presentación de la primera dedicación votiva a los dragones de la epigrafía latina hispánica inscrita sobre una pequeña ara romana de Saguntum e hipótesis de interpretación de la misma. We present the first votive dedication to the dragons in the Hispanic Latin epigraphy, engraved on a small Roman altar found in Saguntum, and give some interpretations.

  6. Curious Variables Experiment (CURVE). Three Periodicities of BF Ara

    CERN Document Server

    Olech, A; Schwarzenberg-Czerny, A

    2008-01-01

    We report CCD photometry of the dwarf nova BF Ara throughout fifteen consecutive nights in quiescence. Light curve in this interval is dominated by a large amplitude around 0.8 mag modulation consisting two periods. Higher amplitude signal is characterized by period of 0.082159(4) days, which was increasing at the rate of dotP/Psh = 3.8(3)* 10^{-5}. Weaker and stable signal has period of 0.084176(21) days. Knowing the superhump period of BF Ara determined by Kato et al. (2003) and equal to 0.08797(1) days, the first modulation is interpreted as quiescent negative superhump arising from retrograde precesion of titled accretion disk and the latter one as an orbital period of the binary. The respective period excess and defect are epsilon_+ = 4.51% +/- 0.03% and epsilon_- = -2.44% +/- 0.02%. Thus BF Ara is yet another in-the-gap nova with mass ratio q of around 0.21.

  7. Notas sobre Algunas Arañas de Antioquia.

    Directory of Open Access Journals (Sweden)

    H. Daniel

    1940-09-01

    Full Text Available Las arañas son animales del grupo de los artrópodos, que se caracterizan por la presencia de dos partes marcadamente distintas del cuerpo, la anterior, denominada cefalotórax, de la cual se desprenden las patas en número de cuatro pares, y la posterior o abdomen, que es relativamente prominente, en cuya terminación, por la parte inferior, se halla el opérculo anal rodeado generalmente de seis pequeños mamelones o hileras que son el órgano esencial para la fabricación de la tela. Por regla general, los arácnidos están provistos de glándulas secretoras de substancias tóxicas. El estudio de estos venenos y su acción en los organismos vivos y en especial en el hombre, constituye lo que se llama el araneísmo. Las arañas que hacen sus telas en los rincones de las habitaciones no presentan importancia a este respecto, pues cuando por una rara circunstancia algunas de estas arañas han picado a alguno, dicha no tiene trascendencia de ninguna especie; su presencia puede ser más bien útil, pues destruyen zancudos, polillas, etc., de modo que si no fuera por el singular adorno de sus .telas que dan aspecto de suciedad a una habitación, podría hasta conservárselas.

  8. Ara-C cytokinetic studies in normal tissues in vivo

    Energy Technology Data Exchange (ETDEWEB)

    Pallavicini, M.G.; Gray, J.W.

    1982-01-01

    The importance of including normal tissues in the design of cytokinetic-based chemotherapeutic schedules is becoming increasingly apparent. However, the lack of rapid analytical techniques to obtain quantitative cytokinetic data on target subpopulations in heterogenous normal tissues, such as the gastrointestinal and hematopoietic system, has limited the inclusion of these tissues in therapy design. Once target subpopulations are identified and/or discriminated, flow cytometry in conjunction with radioactivity measurements by liquid scintillation counting can be used to rapidly obtain quantitative cytokinetic data during drug therapy. The present paper reviews our current cytokinetic techniques and the applications and limitations of these techniques in the analysis of Ara-C induced perturbations in the small intestine and hematopoetic system. Cell cycle information both prior to and 30 hrs following a single Ara-C treatment was obtained in the intestinal crypts and femoral marrow population using radioactive precursor uptake and flow cytometric techniques. In addition, the relationship between crypt cell survival and animal lethality following Ara-C treatment was determined to better understand the impact of a damage to a regenerative population on the ''clinical endpoint'' of animal survival. Understanding the principles behind the normal tissue toxicity which occurs during multidose treatment will hopefully allow modulation of this toxicity through the rational design of optimal chemotherapeutic schedules.

  9. Ara-C cytokinetic studies in normal tissues in vivo.

    Science.gov (United States)

    Pallavicini, M G; Gray, J W

    1982-01-01

    The importance of including normal tissues in the design of cytokinetic-based chemotherapeutic schedules is becoming increasingly apparent. However, the lack of rapid analytical techniques to obtain quantitative cytokinetic data on target subpopulations in heterogenous normal tissues, such as the gastrointestinal and hematopoietic system, has limited the inclusion of these tissues in therapy design. Once target subpopulations are identified and/or discriminated, flow cytometry in conjunction with radioactivity measurements by liquid scintillation counting can be used to rapidly obtain quantitative cytokinetic data during drug therapy. The present paper reviews our current cytokinetic techniques and the applications and limitations of these techniques in the analysis of Ara-C-induced perturbations in the small intestine and hematopoietic system. Cell cycle information both prior to and 30 hrs following a single Ara-C treatment was obtained in the intestinal crypts and femoral marrow population using radioactive precursor uptake and flow cytometric techniques. In addition, the relationship between crypt cell survival and animal lethality following Ara-C treatment was determined to better understand the impact of a damage to a regenerative population on the "clinical endpoint" of animal survival. Understanding the principles behind the normal tissue toxicity which occurs during multidose treatment will hopefully allow modulation of this toxicity through the rational design of optimal chemotherapeutic schedules.

  10. Production of alkyl esters from macaw palm oil by a sequential hydrolysis/esterification process using heterogeneous biocatalysts: optimization by response surface methodology.

    Science.gov (United States)

    Bressani, Ana Paula P; Garcia, Karen C A; Hirata, Daniela B; Mendes, Adriano A

    2015-02-01

    The present study deals with the enzymatic synthesis of alkyl esters with emollient properties by a sequential hydrolysis/esterification process (hydroesterification) using unrefined macaw palm oil from pulp seeds (MPPO) as feedstock. Crude enzymatic extract from dormant castor bean seeds was used as biocatalyst in the production of free fatty acids (FFA) by hydrolysis of MPPO. Esterification of purified FFA with several alcohols in heptane medium was catalyzed by immobilized Thermomyces lanuginosus lipase (TLL) on poly-hydroxybutyrate (PHB) particles. Under optimal experimental conditions (mass ratio oil:buffer of 35% m/m, reaction temperature of 35 °C, biocatalyst concentration of 6% m/m, and stirring speed of 1,000 rpm), complete hydrolysis of MPPO was reached after 110 min of reaction. Maximum ester conversion percentage of 92.4 ± 0.4% was reached using hexanol as acyl acceptor at 750 mM of each reactant after 15 min of reaction. The biocatalyst retained full activity after eight successive cycles of esterification reaction. These results show that the proposed process is a promising strategy for the synthesis of alkyl esters of industrial interest from macaw palm oil, an attractive option for the Brazilian oleochemical industry.

  11. Standardization of RP-HPLC methods for the detection of the major peanut allergens Ara h 1, Ara h 2 and Ara h 3.

    Science.gov (United States)

    Singh, Harmit; Cantoria, Mary Jo; Malave, Poonam; Saputra, Denny; Maleki, Soheila

    2016-03-01

    Crude peanut extract (CPE) was analyzed for three major allergens (Ara h 1, h 2, and h 3) using a C12 and a C18 column at two wavelengths (280 and 220nm) and under different solvent conditions. HPLC profiles were compared for retention time, resolution, and peak heights. CPE samples were spiked with pure allergens to identify the peaks corresponding to allergens. The HPLC fractions of corresponding allergens were collected and freeze-dried in order to perform SDS-PAGE and immunoblotting tests. The best method was identified the one with a shorter retention time, better resolution, and greater peak height as compared with the other methods. In general, the peak heights were greater at 220nm than at 280nm. The major disadvantage of the C12 column was the need for two sets of conditions to identify the allergens as compared to the C18 column where all three allergens could be identified in one run.

  12. Acadesine: AICA riboside, ARA 100, arasine, GP 1 110.

    Science.gov (United States)

    2008-01-01

    Acadesine is an adenosine receptor agonist (ARA) in development for the treatment of ischaemia-reperfusion injury and chronic lymphocytic leukaemia. Schering-Plough is developing the compound as a cardioprotective agent in ischaemia-reperfusion injury. Avancell and Protherics are co-developing acadesine for the treatment of B-cell chronic lymphocytic leukaemia (B-CLL). Clinical development is underway for both indications. In January 2005, PeriCor Therapeutics obtained a sublicense for the worldwide rights to acadesine and three additional ARA compounds from Dr Mangano who was a founder of the company. Dr Mangano acquired the license of worldwide rights for acadesine from Metabasis in November 2000.Previously, in December 1997, all intellectual property rights and data covering acadesine and related ARAs for cardiovascular and cerebrovascular disorders were transferred from the original developer, Gensia Sicor (SICOR), to Metabasis Therapeutics in an asset-liability transfer agreement.Schering-Plough intends to conduct a randomized, placebo-controlled phase III trial, which is required for regulatory approval. The trial will further evaluate acadesine in patients deemed to be at high risk of ischaemic heart disorders. Patients will have either undergone coronary artery bypass graft surgery, or have a history of cardiovascular events (heart attack or stroke). Protherics presented 2-year mortality results from a study of acadesine, investigating long-term mortality after perioperative myocardial infarction, at the 55th Scientific Session of the American College of Cardiology in 2006.Previously, Gensia Sicor conducted clinical trials of acadesine in Canada, the EU and the US; results of these trials were inconclusive. Acadesine has been shown to selectively cause the death of B-cells, whilst sparing T-cells when administered to blood samples taken from patients with B-CLL. Orphan drug status has been granted for acadesine in the EU for the treatment of B-cell chronic

  13. AraPath: a knowledgebase for pathway analysis in Arabidopsis

    Science.gov (United States)

    Lai, Liming; Liberzon, Arthur; Hennessey, Jason; Jiang, Gaixin; Qi, Jianli; Mesirov, Jill P.; Ge, Steven X.

    2012-01-01

    Summary: Studying plants using high-throughput genomics technologies is becoming routine, but interpretation of genome-wide expression data in terms of biological pathways remains a challenge, partly due to the lack of pathway databases. To create a knowledgebase for plant pathway analysis, we collected 1683 lists of differentially expressed genes from 397 gene-expression studies, which constitute a molecular signature database of various genetic and environmental perturbations of Arabidopsis. In addition, we extracted 1909 gene sets from various sources such as Gene Ontology, KEGG, AraCyc, Plant Ontology, predicted target genes of microRNAs and transcription factors, and computational gene clusters defined by meta-analysis. With this knowledgebase, we applied Gene Set Enrichment Analysis to an expression profile of cold acclimation and identified expected functional categories and pathways. Our results suggest that the AraPath database can be used to generate specific, testable hypotheses regarding plant molecular pathways from gene expression data. Availability: http://bioinformatics.sdstate.edu/arapath/ Contact: gexijin@gmail.com Supplementary Information: Supplementary data are available at Bioinformatics online. PMID:22760305

  14. Teaching remote observation using telescopes at Aras de los Olmos

    Science.gov (United States)

    Ballesteros, F. J.; Gutiérrez-Soto, J.

    2015-05-01

    The Observatorio de Aras de los Olmos (OAO) is the observation station of the Astronomical Observatory of the University of Valencia. It is located in the town of Aras de los Olmos on top of the Muela de Santa Catalina mountain, one of the few dark places in the Valencian Community. The OAO has three remotely operable telescopes, with sizes of 40, 50 and 60 cm. As a general purpose observatory and due to its variety in the available instrumentation, the OAO offers a great flexibility in its observations. Among other activities, the OAO telescopes becomes a top-rated first-class teaching resource. In this contribution we present the remote observation system of the OAO telescopes. This system allows direct interaction with telescopes for a large number of students, from the classroom or from their homes. Experience during 2013--14 academic year at the Valencian International University was very satisfactory. The Observatory is now considering offering this service to other universities.

  15. AraPheno: a public database for Arabidopsis thaliana phenotypes

    Science.gov (United States)

    Seren, Ümit; Grimm, Dominik; Fitz, Joffrey; Weigel, Detlef; Nordborg, Magnus; Borgwardt, Karsten; Korte, Arthur

    2017-01-01

    Natural genetic variation makes it possible to discover evolutionary changes that have been maintained in a population because they are advantageous. To understand genotype–phenotype relationships and to investigate trait architecture, the existence of both high-resolution genotypic and phenotypic data is necessary. Arabidopsis thaliana is a prime model for these purposes. This herb naturally occurs across much of the Eurasian continent and North America. Thus, it is exposed to a wide range of environmental factors and has been subject to natural selection under distinct conditions. Full genome sequencing data for more than 1000 different natural inbred lines are available, and this has encouraged the distributed generation of many types of phenotypic data. To leverage these data for meta analyses, AraPheno (https://arapheno.1001genomes.org) provide a central repository of population-scale phenotypes for A. thaliana inbred lines. AraPheno includes various features to easily access, download and visualize the phenotypic data. This will facilitate a comparative analysis of the many different types of phenotypic data, which is the base to further enhance our understanding of the genotype–phenotype map. PMID:27924043

  16. Allergen Ara h 1 occurs in peanuts as a large oligomer rather than as a trimer

    NARCIS (Netherlands)

    Boxtel, E.L. van; Beers, M.M.C. van; Koppelman, S.J.; Broek, L.A.M. van den; Gruppen, H.

    2006-01-01

    Ara h 1, a major peanut allergen, is known as a stable trimeric protein. Nevertheless, upon purification of native Ara h 1 from peanuts using only size exclusion chromatography, the allergen appeared to exist in an oligomeric structure, rather than as a trimeric structure. The oligomeric structure w

  17. Allergen Ara h 1 Occurs in Peanuts as a Large Oligomer Rather Than as a Trimer

    NARCIS (Netherlands)

    Boxtel, van E.L.; Beers, van M.M.C.; Koppelman, S.J.; Broek, van den L.A.M.; Gruppen, H.

    2006-01-01

    Ara h 1, a major peanut allergen, is known as a stable trimeric protein. Nevertheless, upon purification of native Ara h 1 from peanuts using only size exclusion chromatography, the allergen appeared to exist in an oligomeric structure, rather than as a trimeric structure. The oligomeric structure w

  18. Renoprotective capacities of non-erythropoietic EPO derivative, ARA290, following renal ischemia/reperfusion injury

    NARCIS (Netherlands)

    van Rijt, Willem G; Nieuwenhuijs-Moeke, Gertrude J; van Goor, Harry; Ottens, Petra J; Ploeg, Rutger J; Leuvenink, Henri G D

    2013-01-01

    Background: ARA290 is a non-erythropoietic EPO derivative which only binds to the cytoprotective receptor complex (EPOR2-beta cR(2)) consisting of two EPO-receptors (EPOR) and two beta common receptors (beta cR). ARA290 is renoprotective in renal ischemia/reperfusion (I/R). In a renal I/R model we f

  19. Boiling and Frying Peanuts Decreases Soluble Peanut (Arachis Hypogaea Allergens Ara h 1 and Ara h 2 But Does Not Generate Hypoallergenic Peanuts.

    Directory of Open Access Journals (Sweden)

    Sarah S Comstock

    Full Text Available Peanut allergy continues to be a problem in most developed countries of the world. We sought a processing method that would alter allergenic peanut proteins, such that allergen recognition by IgE from allergic individuals would be significantly reduced or eliminated. Such a method would render accidental exposures to trace amounts of peanuts safer. A combination of boiling and frying decreased recovery of Ara h 1 and Ara h 2 at their expected MWs. In contrast, treatment with high pressures under varying temperatures had no effect on protein extraction profiles. Antibodies specific for Ara h 1, Ara h 2, and Ara h 6 bound proteins extracted from raw samples but not in boiled/fried samples. However, pre-incubation of serum with boiled/fried extract removed most raw peanut-reactive IgE from solution, including IgE directed to Ara h 1 and 2. Thus, this method of processing is unlikely to generate a peanut product tolerated by peanut allergic patients. Importantly, variability in individual patients' IgE repertoires may mean that some patients' IgE would bind fewer polypeptides in the sequentially processed seed.

  20. ARA 290 relieves pathophysiological pain by targeting TRPV1 channel: Integration between immune system and nociception.

    Science.gov (United States)

    Zhang, Wenjia; Yu, Guanling; Zhang, Mengyuan

    2016-02-01

    ARA 290 is an erythropoietin-derived polypeptide that possesses analgesic and tissue protective effect in many diseases such as diabetes and cancer. The analgesic effect of ARA 290 is mediated by its anti-inflammatory and immunomodulatory functions, or more specifically, by targeting the innate repair receptor (IRR) to down-regulate inflammation to alleviate neuropathic pain. However, whether other mechanisms or pathways are involved in ARA 290-mediated analgesic effect remains elusive. In this study, we are particularly interested in whether ARA 290 could directly target peripheral nociceptors by blocking or influencing receptors in pain sensation. Using calcium imaging, cell culture and behavioral tests, we demonstrated that ARA 290 was able to specifically inhibit TRPV1 channel activity, and relieve the mechanical hypersensitivity induced by capsaicin. Our study suggested that ARA 290 could potentially function as a novel antagonist for TRPV1 channel. This finding would not only contribute to the development of new pain treatment using ARA 290, but also help to improve our understanding of the integration between the immune system and the peripheral nervous system.

  1. Detection and structural characterization of natural Ara h 7, the third peanut allergen of the 2S albumin family.

    Science.gov (United States)

    Schmidt, Hendrik; Krause, Susanne; Gelhaus, Christoph; Petersen, Arnd; Janssen, Ottmar; Becker, Wolf-Meinhard

    2010-07-02

    In recent years, several novel relevant peanut allergens have been identified. Among those, a new member of the conglutin family was cloned by a phage display approach and initially annotated as Ara h 7.0101. Later, however, recloning of Ara h 7 revealed an alternate isoform, termed Ara h 7.0201. Because the natural Ara h 7 counterpart had not been found at the protein level in peanut extracts, the aim of the present study was to search for authentic natural Ara h 7 protein(s). To this end, enriched low molecular mass proteins (amylase/trypsin inhibitors.

  2. Purification, crystallization and initial crystallographic characterization of peanut major allergen Ara h 3

    Energy Technology Data Exchange (ETDEWEB)

    Jin, Tengchuan; Howard, Andrew; Zhang, Yu-Zhu, E-mail: zhangy@iit.edu [Department of Biology, Illinois Institute of Technology, Chicago, IL 60616 (United States)

    2007-10-01

    The crystallization of peanut allergen Ara h 3 is reported. The peanut is a significant food source, but is responsible for many cases of anaphylaxis. The peanut 11S legumin-like seed storage protein Ara h 3 is one of the best characterized allergens. In this study, Ara h 3 was extracted from peanut kernels and purified by sequential anion-exchange, hydrophobic interaction and gel-filtration chromatography to very high purity to facilitate crystallization and structural studies. Well diffracting single crystals were obtained by the vapor-diffusion method. A molecular-replacement structural solution has been obtained and refinement of the structure is currently under way.

  3. Digested Ara h 1 Loses Sensitizing Capacity When Separated into Fractions

    DEFF Research Database (Denmark)

    Bøgh, Katrine Lindholm; Barkholt, Vibeke; Rigby, Neil M.

    2012-01-01

    The major peanut allergen Ara h 1 is an easily digestible protein under physiological conditions. The present study revealed that pepsin digestion products of Ara h 1 retained the sensitizing potential in a Brown Norway rat model, while this sensitizing capacity was lost by separating the digest...... into fractions by gel permeation chromatography. Protein chemical analysis showed that the peptide composition as well as the aggregation profiles of the fractions of Ara h 1 digest differed from that of the whole pool. These results indicate that the sensitizing capacity of digested Ara h 1 is a consequence...... of the peptides being in an aggregated state resembling the intact molecule or that most peptides of the digests need to be present in the same solution, having a synergistic or adjuvant effect and thereby augmenting the immune response against other peptides....

  4. Production of Recombinant Peanut Allergen Ara h 2 using Lactococcus lactis

    Directory of Open Access Journals (Sweden)

    Frøkiær Hanne

    2007-08-01

    Full Text Available Abstract Background Natural allergen sources can supply large quantities of authentic allergen mixtures for use as immunotherapeutics. However, such extracts are complex, difficult to define, vary from batch to batch, which may lead to unpredictable efficacy and/or unacceptable levels of side effects. The use of recombinant expression systems for allergen production can alleviate some of these issues. Several allergens have been tested in high-level expression systems and in most cases show immunereactivity comparable to their natural counterparts. The gram positive lactic acid bacterium Lactococcus lactis is an attractive microorganism for use in the production of protein therapeutics. L. lactis is considered food grade, free of endotoxins, and is able to secrete the heterologous product together with few other native proteins. Hypersensitivity to peanut represents a serious allergic problem. Some of the major allergens in peanut have been described. However, for therapeutic usage more information about the individual allergenic components is needed. In this paper we report recombinant production of the Ara h 2 peanut allergen using L. lactis. Results A synthetic ara h 2 gene was cloned into an L. lactis expression plasmid containing the P170 promoter and the SP310mut2 signal sequence. Flask cultures grown overnight showed secretion of the 17 kDa Ara h 2 protein. A batch fermentation resulted in 40 mg/L recombinant Ara h 2. Purification of Ara h 2 from the culture supernatant was done by hydrophobic exclusion and size separation. Mass spectrometry and N-terminal analysis showed a recombinant Ara h 2 of full length and correctly processed by the signal peptidase. The immunological activity of recombinant Ara h 2 was analysed by ELISA using antibodies specific for native Ara h 2. The recombinant Ara h 2 showed comparable immunereactivity to that of native Ara h 2. Conclusion Recombinant production of Ara h 2 using L. lactis can offer high yields

  5. The interstellar medium towards the Ara OB1 region

    CERN Document Server

    Henderson, Christopher D; Hearnshaw, John B

    2008-01-01

    We present high resolution (R ~ 4 km/s) absorption measurements of the interstellar NaI and CaII lines measured towards 14 early-type stars of distance 123 pc - 1650 pc, located in the direction of the Ara OB1 stellar cluster. The line profiles can broadly be split into four distinct groupings of absorption component velocity, and we have attempted to identify an origin and distance to each of these interstellar features. For gas with absorption covering the velocity range -10 km/s < V_helio < +10 km/s, we can identify the absorbing medium with local gas belonging to the Lupus-Norma interstellar cavity located between 100 and 485 pc in this galactic direction. Gas with velocities spanning the range -20 km/s < V_helio < +20 km/s is detected towards stars with distances of 570-800 pc. We identify a wide-spread interstellar feature at V_helio ~ -15 km/s with the expanding HI shell called GSH 337+00-05, which is now placed at a distance of ~530 pc.

  6. Robustness Improvement of ARA Kevlar Holddown Restraint Cables

    Science.gov (United States)

    Bongers, E.; Koning, J.; Konink, T.

    2013-09-01

    Dutch Space has developed a Hold Down and Release System based on Kevlar Restraint cables and Thermal Knife release in the early nineties of the previous century. The system has been qualified for application in the company's solar array families ARA and FRED for GEO, LEO, MEO and scientific deep space missions comprising solar panel stacks ranging from 2 to 6 panels. Beside solar arrays, derivatives of the HDRS have been used for antenna, cooler and experiment cover hold down and release. Over 500 HDRS units have performed with 100% success in space.Today's missions do not differ much in nominal conditions but more extreme failure modes are specified resulting in more extreme temperatures. The restraint cables, which are exposed directly to these limits of the thermal environment, have been upgraded to cope with the new requirements. An extended life time acceleration test program has been defined and executed to demonstrate their robustness.The qualified upper temperature of the system, the most critical one concerning loads, has been increased from 105°C to 125°C.The paper will describe problems experienced at high temperatures, the new design, supporting engineering tests, the measurement of tension distribution in the cables with Raman spectroscopy, and the accelerated test program and its results.Kevlar cables according to this new design are now baseline for solar arrays of the ESA programs Sentinel- 1, Sentinel-2, Galileo FOC, EarthCARE and Aeolus.

  7. AMEC GEOMATRIX/ARA GROUNDWATER REMEDIAITON TRIP REPORT

    Energy Technology Data Exchange (ETDEWEB)

    SIMMONS SA

    2008-08-07

    City of Rialto, Well No.3 Demonstration System Integration Project, and Baldwin Park Operable Unit, Baldwin Park, California. The groundwater remediation contractors are AMEC Geomatrix and ARA. The sites were visited on July 22, 2008. Fluor Hanford and the U.S. Department of Energy are currently looking at a variety of alternatives to capture carbon tetrachloride, nitrates, and other COCs from 200-ZP-l groundwater. A few of the more important objectives of our visits were to: (1) Evaluate the treatment systems being used by AMEC Geomatrix to address VOCs, perchlorate, NDMA, 1,4,-Dioxane, and 1,2,3 TCP in a drinking water source; (2) Evaluate how effective these treatment methods have been; (3) Determine the types of problems they have encountered with these treatment systems and how they addressed these problems; (4) Determine the types of secondary wastes being generated by the system; (5) Determine how clean of an operation these companies run; and (6) Determine if the site is worth being visited by DOE-RL at a later date.

  8. Orbital solutions to the HD160691 (mu Arae) Doppler signal

    CERN Document Server

    Gozdziewski, K; Maciejewski, A J; Gozdziewski, Krzysztof; Konacki, Maciej; Maciejewski, Andrzej J.

    2004-01-01

    We perform a dynamical analysis of the recently updated set of the radial velocity (RV) measurements of the HD160691 (mu Arae). The kinematic, 2-Keplerian model of the measurements leads to the best-fit solution in which the eccentricity of the outer planet is about 0.7 and its semi-major axis is about 4AU. The parameters of the inner planet are well determined. The eccentricity is about 0.3 and the semi-major axis is about 1.65AU. The best 2-Keplerian model leads to a catastrophically unstable configuration, self disrupting in less than 20,000yr. To derive dynamically stable configurations which are simultaneously consistent with the RV data, we use the so called GAMP (Genetic Algorithm with MEGNO Penalty). Using this method, we derive meaningful limits on the parameters of the outer planet which provide a stable behavior of the system. The best-fit solutions are located in a shallow valley of Chi^2, in the (a_c,e_c)-plane, extending over 2AU (for the formal 1sigma confidence interval of the best fit). We fi...

  9. 76 FR 62016 - Endangered and Threatened Wildlife and Plants; Red-Crowned Parrot

    Science.gov (United States)

    2011-10-06

    ... (Prosopeia splendens), great green macaw (Ara ambiguus), grey-cheeked parakeet (Brotogeris pyrrhoptera... haematuropygia), red-crowned parrot (Amazona viridigenalis), scarlet macaw (Ara macao), white cockatoo (Cacatua... distinguished by bright yellow-green cheek areas, bright red on the crown (top of head) and lores (area...

  10. Dormancy breaking in macaw palm [Acrocomia aculeata (Jacq. Loddiges ex Mart.] seeds doi: 10.4025/actasciagron.v36i1.13220

    Directory of Open Access Journals (Sweden)

    Aurélio Rúbio Neto

    2014-01-01

    Full Text Available This study was performed to improve the speed of and standardize the process for the germination of macaw palm seeds. The effect of mechanical scarification (removal of the tegument in the hilum region, thermal scarification (imbibition of seeds in water at approximately 100°C for two or four minutes and chemical scarification (98% sulfuric acid treatment for two or four minutes were compared to a control (no scarification in both a germination chamber and a greenhouse, representing trials one and two, respectively. The effect of imbibition speed (fast or slow and different concentrations of gibberellic acid (0, 100 or 200 mg L-1 on the germination percentage and index of germination velocity were evaluated during a third trial. Mechanical scarification to remove the seed tegument in the hilum region enhanced the germination of the seeds in the germination chamber and seedling emergence in the greenhouse, and this type of scarification should be recommended for breaking dormancy in this species. Not obtained increase in seed germination with gibberellic acid, regardless of the application form in the seeds.

  11. Testing the antidepressant properties of the peptide ARA290 in a human neuropsychological model of drug action

    DEFF Research Database (Denmark)

    Cerit, Hilâl; Veer, Ilya M; Dahan, Albert

    2015-01-01

    , parallel-group design. Neural and cognitive effects were assessed one week after administration. Primary outcome measures were the neural processing of fearful vs happy faces and the behavioral recognition of emotional facial expressions. ARA290-treated individuals displayed lower neural responses to happy...... faces in the fusiform gyrus. ARA290 tended to lower the recognition of happy and disgust facial expressions. Although ARA290 was not associated with a better memory for positive words, it was associated with faster categorization of positive vs negative words. Finally, ARA290 increased attention towards...

  12. Heat processing of peanut seed enhances the sensitization potential of the major peanut allergen Ara h 6

    Science.gov (United States)

    Guillon, Blanche; Bernard, Hervé; Drumare, Marie‐Françoise; Hazebrouck, Stéphane

    2016-01-01

    1 Scope Processing of food has been shown to impact IgE binding and functionality of food allergens. In the present study, we investigated the impact of heat processing on the sensitization capacity of Ara h 6, a major peanut allergen and one of the most potent elicitors of the allergic reaction. 2 Methods and results Peanut extracts obtained from raw or heat‐processed peanut and some fractions thereof were biochemically and immunochemically characterized. These extracts/fractions, purified Ara h 6, or recombinant Ara h 6 including Ara h 6 mutants lacking disulfide bridges were used in in vitro digestion tests and mouse models of experimental sensitization. Peanut roasting led to the formation of complexes of high molecular weight, notably between Ara h 6 and Ara h 1, which supported the induction of IgE specific to native Ara h 6. On the contrary, a fraction containing free monomeric 2S albumins or purified native Ara h 6 displayed no intrinsic allergenicity. In addition to complex formation, heat denaturation and/or partial destabilization enhanced Ara h 6 immunogenicity and increased its sensitivity to digestion. 3 Conclusion These results suggest that sensitization potency and IgE binding capacity can be supported by different structures, modified and/or produced during food processing in interaction with other food constituents. PMID:27374416

  13. Heat processing of peanut seed enhances the sensitization potential of the major peanut allergen Ara h 6.

    Science.gov (United States)

    Guillon, Blanche; Bernard, Hervé; Drumare, Marie-Françoise; Hazebrouck, Stéphane; Adel-Patient, Karine

    2016-12-01

    Processing of food has been shown to impact IgE binding and functionality of food allergens. In the present study, we investigated the impact of heat processing on the sensitization capacity of Ara h 6, a major peanut allergen and one of the most potent elicitors of the allergic reaction. Peanut extracts obtained from raw or heat-processed peanut and some fractions thereof were biochemically and immunochemically characterized. These extracts/fractions, purified Ara h 6, or recombinant Ara h 6 including Ara h 6 mutants lacking disulfide bridges were used in in vitro digestion tests and mouse models of experimental sensitization. Peanut roasting led to the formation of complexes of high molecular weight, notably between Ara h 6 and Ara h 1, which supported the induction of IgE specific to native Ara h 6. On the contrary, a fraction containing free monomeric 2S albumins or purified native Ara h 6 displayed no intrinsic allergenicity. In addition to complex formation, heat denaturation and/or partial destabilization enhanced Ara h 6 immunogenicity and increased its sensitivity to digestion. These results suggest that sensitization potency and IgE binding capacity can be supported by different structures, modified and/or produced during food processing in interaction with other food constituents. © 2016 The Authors. Molecular Nutrition & Food Research published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  14. Toxicological evaluation of arachidonic acid (ARA)-rich oil and docosahexaenoic acid (DHA)-rich oil.

    Science.gov (United States)

    Lewis, Kara D; Huang, Weifeng; Zheng, Xiaohui; Jiang, Yue; Feldman, Robin S; Falk, Michael C

    2016-10-01

    The safety of DHA-rich oil from Schizochytrium sp. and ARA-rich oil from Mortierella alpina was separately evaluated by testing for gene mutations, clastogenicity, and aneugenicity, and by conducting 28-day and 90-day dietary studies in Wistar rats. The results of all genotoxicity tests were negative. The 28-day and 90-day studies involved dietary exposure to 1000, 2500, and 5000 mg per kg bw of the DHA-rich and ARA-rich oils and two control diets: water and corn oil (vehicle control). There were no treatment-related effects of either the DHA-rich or ARA-rich oils on clinical observations, body weight, food consumption, behavior, hematology, clinical chemistry, coagulation, urinalysis parameters, or necropsy findings. Increases in cholesterol and triglyceride levels were considered related to a high oil diet and non-adverse. The no observable adverse effect level (NOAEL) for both the DHA-rich and ARA-rich oils was 5000 mg per kg bw, the highest dose tested. The results confirm that these oils possess toxicity profiles similar to those of other currently marketed oils and support the safety of DHA-rich oil from Schizochytrium sp. and ARA-rich oil from Mortierella alpina for their proposed uses in food.

  15. Acidic polysaccharides from Psidium cattleianum (Araçá

    Directory of Open Access Journals (Sweden)

    Lúcia Cristina Vriesmann

    2009-04-01

    Full Text Available The aim of this work was to study the acidic polysaccharides of Psidium cattleianum. Pectic fractions were obtained by successive extractions with water, EDTA and sodium carbonate (4 and 25ºC. Monosaccharide composition, total carbohydrates, uronic acids and protein contents were determined for each fraction. The yield of water and EDTA-soluble fractions and high content of uronic acid were consistent with the presence of pectins probably arising from the middle lamellae. On the other hand, sodium carbonate-soluble pectins had a higher neutral sugar content, indicating highly branched polysaccharides in these fractions, consistent with pectins from cell wall.Psidium cattleianum, árvore nativa do sul do Brasil, produz frutos popularmente conhecidos como araçá e que muitas vezes não são colhidos e estragam nos campos. Neste trabalho, os frutos de P. cattleianum foram utilizados como fonte de polissacarídeos ácidos. Frações de pectinas foram obtidas por extrações seqüenciais com água, agente quelante (EDTA e carbonato de sódio (4 e 25ºC. A composição monossacarídica, os teores de açúcar total, ácidos urônicos e proteínas foram determinados para cada fração. O rendimento das frações solúveis em água e EDTA e o elevado teor de ácidos urônicos são consistentes com a presença de pectinas oriundas provavelmente da lamela média. Por outro lado, as pectinas solúveis em carbonato de sódio têm o maior teor de açúcares neutros, indicando a presença de polissacarídeos altamente ramificados nestas frações, consistentes com pectinas da parede celular.

  16. Sensitive and selective magnetoimmunosensing platform for determination of the food allergen Ara h 1

    Energy Technology Data Exchange (ETDEWEB)

    Montiel, V. Ruiz-Valdepeñas, E-mail: victor_lega90@hotmail.com [Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Campuzano, S., E-mail: susanacr@quim.ucm.es [Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Pellicanò, A., E-mail: alessandro.pellicano@unimi.it [Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, Via Celoria 2, 20133 Milan (Italy); Torrente-Rodríguez, R.M., E-mail: rebeca.magnolia@gmail.com [Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Reviejo, A.J., E-mail: reviejo@quim.ucm.es [Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Cosio, M.S., E-mail: stella.cosio@unimi.it [Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, Via Celoria 2, 20133 Milan (Italy); Pingarrón, J.M., E-mail: pingarro@quim.ucm.es [Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain)

    2015-06-23

    Highlights: • First amperometric magnetoimmunosensor for Ara h 1 determination. • Sensitive and selective detection of Ara h 1 in 2 h. • LOD of 6.3 ng mL{sup −1}. • Determinations in food extracts and saliva. • Potential applicability in food safety and consumer protection. - Abstract: A highly sensitive disposable amperometric immunosensor based on the use of magnetic beads (MBs) is described for determination of Ara h 1, the major peanut allergen, in only 2 h. The approach uses a sandwich configuration involving selective capture and biotinylated detector antibodies and carboxylic acid-modified MBs (HOOC-MBs). The MBs bearing the immunoconjugates are captured by a magnet placed under the surface of a disposable screen-printed carbon electrode (SPCE) and the affinity reactions are monitored amperometrically at −0.20 V (vs a Ag pseudo-reference electrode) in the presence of hydroquinone (HQ) as electron transfer mediator and upon addition of H{sub 2}O{sub 2} as the enzyme substrate. The developed immunosensor exhibits a wide range of linearity between 20.8 and 1000.0 ng mL{sup −1} Ara h 1, a detection limit of 6.3 ng mL{sup −1}, a great selectivity, a good reproducibility with a RSD of 6.3% for six different immunosensors and a useful lifetime of 25 days. The usefulness of the immunosensor was demonstrated by determining Ara h 1 in different matrices (food extracts and saliva). The results correlated properly with those provided by a commercial ELISA method offering a reliable and promising analytical screening tool in the development of user-friendly devices for on-site determination of Ara h 1.

  17. [Effect of salidroside on apoptosis of bone marrow mesenchymal stem cells induced by ara-C].

    Science.gov (United States)

    Wei, Yu-Ping; Bai, Hai; Sun, Yan-Qing; Bao, Shen; Xi, Rui; Liu, Lin

    2013-12-01

    The purpose of this study was to investigate the effect of salidroside on human bone marrow mesenchymal stem cell (hBMMSC) apoptosis induced by cytarabine C (Ara-C) and its mechanism, hBMMSC were cultured in vitro and isolated by Fircoll density gradient centrifugation; cell surface antigens were measured by flow cytometry; the osteogenic and adipogenic differentiation of MSC was tested and evaluated by specific staining methods. The proliferation and apoptosis of cells exposed to Ara- C were detected by MTT and flow cytometry respectively. The experiments were divided into 4 groups: control group, Ara-C group, salidroside group and Ara-C+salidroside group. The mRNA expression of BCL-2 and BAX was assayed by RT-PCR. The results showed that the adherent cells displayed spindle and fibroblast cell-like shape; the hBMMSC expressed CD44, CD71 and HLA-ABC, not expressed CD34, CD45 and HLA-DR; the hBMMSC successfully differentiated into osteogenic and adipogenic lineages, which showed mineralization with von Kossa staining. Furthermore, liquid vacuoles were detected by oil red O staining; Ara- C exhibited a less inhibitory effect on the proliferation of hBMMSC treated with salidroside. The apoptosis of hBMMSC treated with salidroside were significantly higher as compared with control group (P Salidroside significantly inhibited the apoptosis of MSC and reversed the mRNA expression of BCL-2 and BAX. It is concluded that salidroside can inhibit the apoptosis of hBMMSC induced by Ara-C, its mechanism may be related with the regulation of BCL-2/BAX expression.

  18. Las arañas en agroecosistemas: bioindicadores terrestres de calidad ambiental

    OpenAIRE

    Miguel Simó; Álvaro Laborda; Carolina Jorge; Manuel de Castro

    2011-01-01

    Las arañas son predadores generalistas en ecosistemas terrestres, ampliamente utilizadas en estudios de biodiversidad. En el último siglo, el paisaje de Uruguay se transformó en un mosaico de áreas formadas por ambientes naturales y agroecosistemas. ¿Qué nivel de cambio se espera hallar en la comunidad de arañas si las áreas de estudio están próximas? ¿Qué porcentaje de especies nativas serán reemplazadas con la plantación? ¿Cómo afecta esto a la biodiversidad local? Se realizó un estudio en ...

  19. Androgen receptor coregulator ARA267-α interacts with death receptor-6 revealed by the yeast two-hybrid

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    ARA267-αis a newly identified androgen receptor coactivator.In order to further elucidate its precise role in cells,using the ARA267- α fragment containing four PHD and one SET conserved domains as bait we revealed an ARA267-α-PHD-SET-interacting protein,death receptor-6(DR6),in the yeast two-hybrid screening.DR6 is the member of TNF receptor family and has a death domain in its intracellular cytoplasmic portion(DR6cp)to mediate the cell apoptosis.The interaction between ARA267-α-PHD-SET and DR6cp was confirmed in vitro and in vivo.Our finding implied that androgen signaling pathway might cross talk with apoptosis signaling pathway through the interaction between ARA267-α and DR6.

  20. Peanut allergen Ara h 1 interacts with proanthocyanidins into higher molecular weight complexes

    NARCIS (Netherlands)

    Boxtel, E.L. van; Broek, L.A.M. van den; Koppelman, S.J.; Vincken, J.-P.; Gruppen, H.

    2007-01-01

    Mildly extracted peanut allergen Ara h 1 was previously reported to occur as an oligomeric complex. In this paper we describe how the protein in this oligomeric complex interacts noncovalently with phenolic compounds of the proanthocyanidin type. These interactions are being disrupted during anion e

  1. IgE epitopes of intact and digested Ara h 1

    DEFF Research Database (Denmark)

    Bøgh, Katrine Lindholm; Nielsen, H.; Madsen, Charlotte Bernhard;

    2012-01-01

    epitopes have been suggested to be of great importance. ObjectiveThe aim of this study was to identify IgE specific epitopes of intact and digested Ara h 1, and to compare epitope patterns between humans and rats. MethodsSera from five peanut allergic patients and five Brown Norway rats were used...... to identify intact and digested Ara h 1-specific IgE epitopes by competitive immunoscreening of a phage-displayed random hepta-mer peptide library using polyclonal IgE from the individual sera. The resulting peptide sequences were mapped on the surface of a three-dimensional structure of the Ara h 1 molecule...... to mimic epitopes using a computer-based algorithm. ResultsPatients as well as rats were shown to have individual IgE epitope patterns. All epitope mimics were conformational and found to cluster into three different areas of the Ara h 1 molecule. Five epitope motifs were identified by patient IgE, which...

  2. PHYSICAL, CHEMICAL, AND LIPID COMPOSITION OF JUÇARA (EUTERPE EDULIS MART. PULP

    Directory of Open Access Journals (Sweden)

    Paula Porrelli Moreira da SILVA

    2013-01-01

    Full Text Available Juçara palm (Euterpe edulis Martius is native to the Brazilian Atlantic Forest and is an endangered species due to intensive exploration to produce hearts of palm. In the last few years, juçara plantation has been implemented for fruit production and pulp extraction, similar to açaí (Euterpe oleracea Mart.. The objective of this study was to assess the physical, chemical, and lipid composition of juçara pulp, in order to establish the exact measures of its quality aiming to demonstrate the product potential for commercialization. Our results revealed high content of essential minerals, such as magnesium, copper, zinc, iron, and manganese, antioxidant compounds (anthocyanins, and high quality fatty acids (palmitic, oleic and linoleic, indicating the importance and functionality of the product for human consumption. Due to the high content of dark pigments found in juçara pulp, this product can also be used as a natural food dye, not only producing an attractive appearance, but also adding beneficial compounds for human health.

  3. Operation ARA: A Computerized Learning Game that Teaches Critical Thinking and Scientific Reasoning

    Science.gov (United States)

    Halpern, Diane F.; Millis, Keith; Graesser, Arthur C.; Butler, Heather; Forsyth, Carol; Cai, Zhiqiang

    2012-01-01

    Operation ARA (Acquiring Research Acumen) is a computerized learning game that teaches critical thinking and scientific reasoning. It is a valuable learning tool that utilizes principles from the science of learning and serious computer games. Students learn the skills of scientific reasoning by engaging in interactive dialogs with avatars. They…

  4. Metformin and Ara-a Effectively Suppress Brain Cancer by Targeting Cancer Stem/Progenitor Cells

    Science.gov (United States)

    Mouhieddine, Tarek H.; Nokkari, Amaly; Itani, Muhieddine M.; Chamaa, Farah; Bahmad, Hisham; Monzer, Alissar; El-Merahbi, Rabih; Daoud, Georges; Eid, Assaad; Kobeissy, Firas H.; Abou-Kheir, Wassim

    2015-01-01

    Background: Gliomas and neuroblastomas pose a great health burden worldwide with a poor and moderate prognosis, respectively. Many studies have tried to find effective treatments for these primary malignant brain tumors. Of interest, the AMP-activated protein kinase (AMPK) pathway was found to be associated with tumorigenesis and tumor survival, leading to many studies on AMPK drugs, especially Metformin, and their potential role as anti-cancer treatments. Cancer stem cells (CSCs) are a small population of slowly-dividing, treatment-resistant, undifferentiated cancer cells that are being discovered in a multitude of cancers. They are thought to be responsible for replenishing the tumor with highly proliferative cells and increasing the risk of recurrence. Methods: Metformin and 9-β-d-Arabinofuranosyl Adenine (Ara-a) were used to study the role of the AMPK pathway in vitro on U251 (glioblastoma) and SH-SY5Y (neuroblastoma) cell lines. Results: We found that both drugs are able to decrease the survival of U251 and SH-SY5Y cell lines in a 2D as well as a 3D culture model. Metformin and Ara-a significantly decreased the invasive ability of these cancer cell lines. Treatment with these drugs decreased the sphere-forming units (SFU) of U251 cells, with Ara-a being more efficient, signifying the extinction of the CSC population. However, if treatment is withdrawn before all SFUs are extinguished, the CSCs regain some of their sphere-forming capabilities in the case of Metformin but not Ara-a treatment. Conclusion: Metformin and Ara-a have proved to be effective in the treatment of glioblastomas and neuroblastomas, in vitro, by targeting their cancer stem/progenitor cell population, which prevents recurrence. PMID:26635517

  5. Metformin and Ara-a Effectively Suppress Brain Cancer by Targeting Cancer Stem/Progenitor Cells

    Directory of Open Access Journals (Sweden)

    Tarek H. Mouhieddine

    2015-11-01

    Full Text Available Background: Gliomas and neuroblastomas pose a great health burden worldwide with a poor and moderate prognosis, respectively. Many studies have tried to find effective treatments for these primary malignant brain tumors. Of interest, the AMP-activated protein kinase (AMPK pathway was found to be associated with tumorigenesis and tumor survival, leading to many studies on AMPK drugs, especially Metformin, and their potential role as anti-cancer treatments. Cancer stem cells (CSCs are a small population of slowly-dividing, treatment-resistant, undifferentiated cancer cells that are being discovered in a multitude of cancers. They are thought to be responsible for replenishing the tumor with highly proliferative cells and increasing the risk of recurrence. Methods: Metformin and 9-β-d-Arabinofuranosyl Adenine (Ara-a were used to study the role of the AMPK pathway in vitro on U251 (glioblastoma and SHSY-5Y (neuroblastoma cell lines.Results: We found that both drugs are able to decrease the survival of U251 and SH-SY5Y cell lines in a 2D as well as a 3D culture model. Metformin and Ara-a significantly decreased the invasive ability of these cancer cell lines. Treatment with these drugs decreased the sphere-forming units (SFU of U251 cells, with Ara-a being more efficient, signifying the extinction of the CSC population. However, if treatment is withdrawn before all SFUs are extinguished, the CSCs regain some of their sphere-forming capabilities in the case of Metformin but not Ara-a treatment. Conclusion: Metformin and Ara-a have proved to be effective in the treatment of glioblastomas and neuroblastomas, in vitro, by targeting their cancer stem/progenitor cell population, which prevents recurrence.

  6. Changes in the physicochemical and microbiological properties of frozen araça pulp during storage

    Directory of Open Access Journals (Sweden)

    Clarissa Damiani

    2013-02-01

    Full Text Available Araça belongs to the Myrtaceae family and is popularly known as araçá-comum, araçá-azedo, or araçá-do-campo. Frozen fruit pulp is of great importance for the food industry, which can produce it at the time of harvest, store it, and use it according to the demand of the consumer market and/or as an ingredient in the formulation of products such as yogurt, candies, and ice creams among others. The aim of this study was to evaluate the physical, chemical, and microbiological stability of frozen araça pulp during 12 months of frozen storage. It was observed that the levels of moisture (90.55-88.75%, ash (0.34-0.26% total soluble sugars (7.11-6.62%, sucrose (3.55-1.39%, soluble pectin (0.24-0.23%, total pectin (0.5-0.46%, pH (3.82-2.31%, organic acids (698.12-122.25 µg.g-1 citric acid, and phenolic compounds (6.22-0.00 mg GAE.100 g-1 decreased during storage, whereas the levels of protein (0.61-0.83%, lipids (0.14-0.38%, total carbohydrates (8.36-9.78%, calorific value (37.14-45.86 kcal.100 g-1, reducing sugars (3.51-5.21%, soluble solids (5.17-6.0%, total antioxidant capacity (6.89-35.13%, and color parameters (L*49.75-50.67; a*0.79-1.82 and b*22.5-25.19 increased over the one-year storage period. According to the chemical and microbiological parameters assessed, the product can be stored for 12 months without loss of quality with addition of citric acid as a preservative.

  7. Hic-5/ARA55 inhibits the growth of Lovo cells by up-regulating the expression of P27%Hic-5/ARA55抑制大肠癌细胞生长的实验研究

    Institute of Scientific and Technical Information of China (English)

    武颖超; 汪欣; 刘玉村; 万远廉; 朱静

    2008-01-01

    Objective To investigate the effects of Hic-5/ARA55 on the growth of the human colorectal cancer cells(Lovo cells)and its mechanism.Method Flow cytometry(FCM)was used to study the cell cycle of Lovo cells(Lovo group),Lovo cells stably transfected with empty vector(Lovo-Vector group)and the Lovo cells stably transfected with vector containing Hic-5/ARA55(Lovo-Hic-5/ARA55group).Western blot assay was used to detect the principal cyclins in the three groups,and Luciferase assay was used to study the mechanism between Hic-5/ARA55 and the only target cyclin. The cells from the three groups were inoculated subcutaneously into 7 nude micef Babl/c nu/nu)respectively to observe the effects of Hic-5/ARA55 on the growth of the cells in vivo.Seven weeks later,the subcutaneous tumors were harvested and weighed.Then immunohistochemistrical assay was used to detect Hic-5/ARA55 and the target cyclin in the tumors.Results The cell cycle was obviously delayed from G0/G1 to S stage in Lovo-Hic-5/ARA55 cells.A significantly higher expression of P27 was found in Lovo-Hic-5/ARA55 cells than in the other two groups.The weight of the subcutaneous tumors of Lovo-Hic-5/ARA55 cells,Lovo cells and Lovo-Vector cells were(0.33±0.23)g,(1.20±0.39)g and(1.30 ±0.49)g,respectively;the tumors of Lovo-Hic-5/ARA55 cells was significantly lighter than those ofthe other two groups(P<0.05).Hic-5/ARA55 and P27 were beth over-expressed in implanted tumors of Lovo-Hic-5/ARA55 cells,while were both expressed lower or not expressed in the other two groups.And the expressions of Hic-5/ARA55 and P27 were highly positive correlated(r=0.816,P<0.05).Conclusion Hic-5/ARA55 could inhibit the growth of Lovo cells both in vitro and in vlvo bv up-regulating the transcription of P27.%目的 研究Hic-5/ARA55对大肠癌细胞生长的影响及其机制.方法 流式细胞仪检测已稳定转染Hic-5/ARA55的大肠癌细胞系(Lovo-Hic-5/ARA55组)的细胞周期,用未转染质粒(Lovo组)和转染空质粒

  8. Modelado de la tela de araña y análisis de su comportamiento frente a impacto

    OpenAIRE

    Teus Fernández, Jaime

    2012-01-01

    Este proyecto se centra en los aspectos menos estudiados hasta la fecha de la tela de araña, los relacionados con la respuesta estructural de la tela, e intenta esclarecer la función que desempeñan los diferentes tipos de hilo, la topología estructural y las propiedades mecánicas de la seda de araña en su respuesta frente a cargas impulsivas, intentando esclarecer la funcionalidad y comportamiento de algunos aspectos de la estructura de la tela de araña. El objetivo que se plantea en este pro...

  9. Modelado de la tela de araña y análisis de su comportamiento frente a impacto

    OpenAIRE

    Teus Fernández, Jaime

    2012-01-01

    Este proyecto se centra en los aspectos menos estudiados hasta la fecha de la tela de araña, los relacionados con la respuesta estructural de la tela, e intenta esclarecer la función que desempeñan los diferentes tipos de hilo, la topología estructural y las propiedades mecánicas de la seda de araña en su respuesta frente a cargas impulsivas, intentando esclarecer la funcionalidad y comportamiento de algunos aspectos de la estructura de la tela de araña. El objetivo que se plantea en este pro...

  10. Subenxertia da goiabeira 'Paluma' com araçazeiros resistentes a Meloidogyne enterolobii (sin. M. mayaguensis

    Directory of Open Access Journals (Sweden)

    Renata Rodrigues Robaina

    2012-09-01

    Full Text Available Estudos anteriores demonstraram resistência ou imunidade ao nematoide Meloidogyne enterolobii em araçazeiros (Psidium cattleyanum Sabine, mas não foi encontrada essa resistência em goiabeiras. O objetivo deste trabalho foi avaliar a subenxertia entre a goiabeira 'Paluma' e araçazeiros, como um meio de obter goiabeiras resistentes ao nematoide. Oitenta plântulas da goiabeira 'Paluma', produzidas por estaquia, foram conduzidas em vasos de 5 litros (uma por vaso até que atingissem 8 mm à altura de 10 cm do colo para serem subenxertadas. Os subenxertos (acessos dos araçazeiros 115; 116; 117 e goiabeira foram produzidos por mudas seminíferas. Ao lado de cada muda de goiabeira 'Paluma' (copa, foram transplantadas duas mudas seminíferas de araçazeiros ou de goiabeiras. A subenxertia foi feita por um corte em bisel e introdução do subenxerto de uma das plantas laterais sob a casca da goiabeira 'Paluma'. A outra planta lateral foi despontada na mesma época e utilizada como uma testemunha. Foram efetuadas avaliações a cada 20 dias quanto ao crescimento em diâmetro do caule (da copa, do subenxerto e da testemunha. O pegamento na subenxertia da goiabeira 'Paluma' com os araçazeiros foi inferior ao pegamento observado quando o subenxerto utilizado foi a própria goiabeira. Após o pegamento, em muitos casos, a conexão vascular não foi estabelecida com sucesso e não houve estabelecimento de conexões vasculares funcionais entre alguns subenxertos produzidos com araçazeiros ou com a própria goiabeira, o que foi comprovado pela baixa sobrevivência da copa após o corte de seu sistema radicular. A subenxertia deve ser mais bem investigada para a introdução de um porta-enxerto à goiabeira.

  11. Production of recombinant peanut allergen Ara h 2 using Lactococcus lactis

    DEFF Research Database (Denmark)

    Glenting, J.; Poulsen, Lars K.; Kato, K.;

    2007-01-01

    Background: Natural allergen sources can supply large quantities of authentic allergen mixtures for use as immunotherapeutics. However, such extracts are complex, difficult to define, vary from batch to batch, which may lead to unpredictable efficacy and/ or unacceptable levels of side effects....... The use of recombinant expression systems for allergen production can alleviate some of these issues. Several allergens have been tested in high- level expression systems and in most cases show immunereactivity comparable to their natural counterparts. The gram positive lactic acid bacterium Lactococcus...... of the major allergens in peanut have been described. However, for therapeutic usage more information about the individual allergenic components is needed. In this paper we report recombinant production of the Ara h 2 peanut allergen using L. lactis. Results: A synthetic ara h 2 gene was cloned into an L...

  12. Observation of Reconstructable Radio Waveforms from Solar Flares with the Askaryan Radio Array (ARA)

    Science.gov (United States)

    Clark, Brian; Askaryan Radio Array Collaboration

    2017-01-01

    The Askaryan Radio Array (ARA) is an ultra-high energy (>1017 eV) neutrino detector in phased construction at the South Pole. The full detector will consist of 37 autonomous stations of antennas which search for the radio pulses produced by neutrino interactions in the Antarctic ice. Three of the proposed detectors have been installed at up to 200m depth, with an additional two slated for deployment in Austral summer 2017. A prototype of the detector was deployed in January 2011, in time to serendipitously observe the relatively active solar month of February. In this talk, we will present preliminary results from an analysis of radio waveforms associated with an X-class solar flare observed in this prototype station. These are the first reconstructable events of natural origin seen by ARA, and could potentially be a powerful calibration source for the array.

  13. ARA290, a Specific Agonist of Erythropoietin/CD131 Heteroreceptor, Improves Circulating Endothelial Progenitors' Angiogenic Potential and Homing Ability.

    Science.gov (United States)

    Hache, Guillaume; Garrigue, Philippe; Bennis, Youssef; Stalin, Jimmy; Moyon, Anais; Cerami, Anthony; Brines, Michael; Blot-Chabaud, Marcel; Sabatier, Florence; Dignat-George, Francoise; Guillet, Benjamin

    2016-10-01

    Alternate erythropoietin (EPO)-mediated signaling via the EPOR/CD131 heteromeric receptor exerts the tissue-protective actions of EPO in a wide spectrum of injuries, especially ischemic diseases. Circulating endothelial progenitor cells contribute to endothelial repair and post-natal angiogenesis after chronic ischemic injury. This work aims to investigate the effects of ARA290, a specific agonist of EPOR/CD131 complex, on a subpopulation of endothelial progenitor cells named endothelial colony-forming cells (ECFCs) and to characterize its contribution to ECFCs-induced angiogenesis after peripheral ischemia. ARA290 effects on ECFCs properties were studied using cell cultures in vitro. We injected ARA290 to mice undergoing chronic hindlimb ischemia (CLI) in combination with ECFC transplantation. The homing of transplanted ECFC to ischemic tissue in vivo was assessed by SPECT/CT imaging. In vitro, ARA290 enhanced the proliferation, migration, and resistance to H2O2-induced apoptosis of ECFCs. After ECFC transplantation to mice with CLI, a single ARA290 injection enhanced the ischemic/non-ischemic ratio of hindlimb blood flow and capillary density after 28 days and the homing of radiolabeled transplanted cells to the ischemic leg 4 h after transplantation. Prior neutralization of platelet-endothelial cell adhesion molecule-1 (CD31) expressed by the transplanted cells inhibited ARA290-induced improvement of homing. ARA290 induces specific improvement of the biological activity of ECFCs. ARA290 administration in combination with ECFCs has a synergistic effect on post-ischemic angiogenesis in vivo. This potentiation appears to rely, at least in part, on a CD31-dependent increase in homing of the transplanted cells to the ischemic tissue.

  14. Cultura dell’accoglienza e ospitalità diffusa. Conversazione con Giancarlo Dall'Ara

    Directory of Open Access Journals (Sweden)

    Silvia Mantovani

    2015-11-01

    Full Text Available The conversation highlights the features of a new and original Italian model of hospitality: the Albergo Diffuso (Widespread Hotel. Giancarlo Dall'Ara, professor of Tourism Marketing and founder of the National Association of Widespread Hotels, illustrates this new “reception culture”, grounded on some basic assumptions: no new buildings, integration with place identity, genuine experience, presence of a hosting community living in the place, preserved environment.

  15. Tratamentos pré-germinativos em sementes de araçá-boi (Eugenia stipitata

    Directory of Open Access Journals (Sweden)

    Angela Maria da Silva Mendes

    2012-09-01

    Full Text Available O araçá-boi (Eugenia stipitata é uma fruteira nativa com grande potencial agroindustrial. Suas sementes são intolerantes ao dessecamento e apresentam dormência, o que dificulta sua propagação. O objetivo do trabalho foi analisar as características de germinação das sementes de araçá-boi submetidas a diferentes tratamentos pré-germinativos: retirada parcial do tegumento, lixiviação e fracionamento. A germinação das sementes intactas e com retirada parcial do tegumento foi realizada em dois ambientes: casa de vegetação e viveiro telado com sombrite de 50%. Para a lixiviação, as sementes foram colocadas em balde e submetidas à lixiviação, em água corrente, por até 90 dias, com intervalos de 10 dias. O fracionamento das sementes foi realizado de acordo com a posição da zona meristemática de protrusão da raiz e parte aérea (fracionamento transversal e longitudinal. A retirada parcial do tegumento das sementes de araçá-boi diminui o tempo médio de germinação de 91 para 48 dias, com 100% de emergência. As sementes de araçá-boi mantidas submersas em água corrente por até 50 dias mantêm a viabilidade e o vigor. As frações de sementes que apresentam a protuberância meristemática formam plântulas normais, com as mesmas características de germinação das sementes intactas, porém os diferentes tipos de fracionamento não aceleraram nem uniformizaram a germinação das sementes.

  16. ARAS: an automated radioactivity aliquoting system for dispensing solutions containing positron-emitting radioisotopes

    OpenAIRE

    2016-01-01

    Background Automated protocols for measuring and dispensing solutions containing radioisotopes are essential not only for providing a safe environment for radiation workers but also to ensure accuracy of dispensed radioactivity and an efficient workflow. For this purpose, we have designed ARAS, an automated radioactivity aliquoting system for dispensing solutions containing positron-emitting radioisotopes with particular focus on fluorine-18 (18F). Methods The key to the system is the combina...

  17. The G-Hilbert scheme for 1/r(1,a,r-a)

    CERN Document Server

    Kedzierski, Oskar

    2010-01-01

    Following Craw, Maclagan, Thomas and Nakamura work on Hilbert schemes for abelian groups we give an explicit description of the G-Hilbert scheme for G equal to a cyclic group of order r, acting on C^3 with weights 1,a,r-a. We describe how the combinatorial properties of the fan of G-Hilbert scheme relates to the Euclidean algorithm for b and r-b, where b is an inverse of a modulo r.

  18. The Near-Contact Binary FU Ara: New Observations, a Photometric Study and Preliminary Elements

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    A new CCD (V) light curve is presented for'the semi-detached binary system FU Ara. The light curve, obtained in 2007, is the first one since the last 50 years. With our data we were able to determine six new times of minimum light and refined the period of the system to 0.8645049 days. A Wilson-Devinney analysis leads to a solution of a semi-detached configuration, composed of a main-sequence primary component of spectral type F5, fractionally smaller than its Roche lobe, and an evolved secondary component of spectral type K I which fills its Roche lobe, and which is overluminous and oversized as compared with the main-sequence. The two components of FU Ara differ considerably in effective temperature. It is classified as an FO Virginis type of near-contact binary system. Assuming a reasonable value for the mass of the primary component, an estimate of the absolute elements of FU Ara has been made, on the assumption that the primary has a mass corresponding to its spectral type according to Svechnikov & Taidakova.

  19. El cúmulo abierto NGC 6167 en la Asociación Ara OB1

    Science.gov (United States)

    Folatelli, G.; Morrell, N. I.; Barbá, R. H.

    We have carried out a spectrophotometric study of the central region of the open cluster NGC 6167. We were motivated to do so by the fact that this cluster could have had a main role in the star formation history of Ara OB1 Association (Arnal et al., 1987, A&A 174, 78), though it had not been thoroughly studied. Particularly, there was no previous research based on CCD data, and even the existence of the cluster itself had been discussed by some authors. By means of CCD photometry and intermediate resolution spectroscopy on images obtained at the Complejo Astronómico El Leoncito (CASLEO, San Juan) we have obtained B and V magnitudes down to V=19 in the central region of the cluster, along with spectral types and radial velocities for 85 stars. This information allowed us to determine for NGC 6167 a distance modulus of 10.5 ± 0.3 and a mean radial velocity of -39 ± 14 km s-1, which are in agreement with the values corresponding to the open cluster NGC 6193 and with the Ara OB1 Association as a whole. We discuss the role of NGC 6167 in the context of Ara OB1.

  20. AraUTP-Affi-Gel 10: a novel affinity absorbent for the specific purification of DNA polymerase alpha-primase.

    Science.gov (United States)

    Izuta, S; Saneyoshi, M

    1988-10-01

    For the specific purification of eukaryotic DNA-dependent DNA polymerase alpha, we prepared two novel affinity resins bearing 5-(E)-(4-aminostyryl) araUTP as a ligand. One of them was araUTP-Sepharose 4B which was coupled directly with the ligand and the other was araUTP-Affi-Gel 10 which was coupled with the ligand through a spacer. No DNA polymerase alpha-primase activity from cherry salmon (Oncorhynchus masou) testes was bound on the araUTP-Sepharose 4B in all cases examined. On the other hand, the araUTP-Affi-Gel 10 retains this enzyme activity when poly(dA) or poly(dA)-oligo(dT)12-18 is present. The retained enzyme activity was sharply eluted around 100-mM KCl concentrations as a single peak, and this fraction showed a specific activity of about 170,000 units/mg as alpha-polymerase activity. The highly purified DNA polymerase alpha-primase isolated using the araUTP-Affi-Gel 10 contained only three polypeptides, which showed Mr values of 120,000, 62,000, and 58,000, respectively, as judged using sodium dodecyl sulfate-polyacrylamide gel electrophoresis.

  1. AraPPISite: a database of fine-grained protein-protein interaction site annotations for Arabidopsis thaliana.

    Science.gov (United States)

    Li, Hong; Yang, Shiping; Wang, Chuan; Zhou, Yuan; Zhang, Ziding

    2016-09-01

    Knowledge about protein interaction sites provides detailed information of protein-protein interactions (PPIs). To date, nearly 20,000 of PPIs from Arabidopsis thaliana have been identified. Nevertheless, the interaction site information has been largely missed by previously published PPI databases. Here, AraPPISite, a database that presents fine-grained interaction details for A. thaliana PPIs is established. First, the experimentally determined 3D structures of 27 A. thaliana PPIs are collected from the Protein Data Bank database and the predicted 3D structures of 3023 A. thaliana PPIs are modeled by using two well-established template-based docking methods. For each experimental/predicted complex structure, AraPPISite not only provides an interactive user interface for browsing interaction sites, but also lists detailed evolutionary and physicochemical properties of these sites. Second, AraPPISite assigns domain-domain interactions or domain-motif interactions to 4286 PPIs whose 3D structures cannot be modeled. In this case, users can easily query protein interaction regions at the sequence level. AraPPISite is a free and user-friendly database, which does not require user registration or any configuration on local machines. We anticipate AraPPISite can serve as a helpful database resource for the users with less experience in structural biology or protein bioinformatics to probe the details of PPIs, and thus accelerate the studies of plant genetics and functional genomics. AraPPISite is available at http://systbio.cau.edu.cn/arappisite/index.html .

  2. Araçatuba Formation: palustrine deposits from the initial sedimentation phase of the Bauru Basin

    Directory of Open Access Journals (Sweden)

    Luiz A. Fernandes

    2003-06-01

    Full Text Available The Bauru Basin (Upper Cretaceous accumulated an essentially sandy continental sedimentary sequence. In a first desertic phase the basaltic substratum was covered by a widespread and homogeneous aeolian sand unit with minor loess intercalations. The substratum relief favored the formation of an endorheic drainage system under semi-arid climate, a process that started the development of the Araçatuba Paleoswamp. The palustrine deposits (Araçatuba Formation comprise siltstone and tipically greenish gray narrow tabular strata of sandstone cemented by carbonate. Moulds and gypsite and dolomite pseudomorphs were identified. The moulds seem to be genetically associated with desiccation cracks, root marks and climbing ripple lamination levels, that, on the whole, indicate calm shallow saline waters undergoing phases of subaerial exposition. At the boundaries of the study area, sand units may exhibit sigmoidal features and convolute bedding structure, which is characteristic of marginal deltaic deposits. The Araçatuba Formation is enclosed in and later overlaid by the aeolian deposits of the Vale do Rio do Peixe Formation.A Bacia Bauru (Cretáceo Superior, acumulou uma seqüência sedimentar continental essencialmente arenosa. Numa fase inicial desértica, o seu substrato basáltico foi soterrado por extensa e monótona cobertura de areias eólicas com intercalações subordinadas de depósitos de loesse. O relevo original do substrato favoreceu a formação de uma drenagem regional endorrêica, sob clima semi-árido, propiciando assim condições de formação do Paleopantanal Araçatuba. Os depósitos paludiais (Formação Araçatuba constituem estratos tabulares de siltitos e arenitos de cor cinza claro esverdeado típica, eventualmente cimentados por carbonato de cálcio. Moldes e pseudomorfos de cristais de gipsita e dolomita foram identificados na unidade. Aparentemente, estão associados com gretas de ressecação, marcas de raízes e

  3. Effect of heating and glycation on the allergenicity of 2S albumins (Ara h 2/6 from peanut.

    Directory of Open Access Journals (Sweden)

    Yvonne M Vissers

    Full Text Available BACKGROUND: Peanut allergy is one of the most common and severe food allergies, and processing is known to influence the allergenicity of peanut proteins. We aimed to establish the effect of heating and glycation on the IgE-binding properties and biological activity of 2S albumins (Ara h 2/6 from peanut. METHODOLOGY/PRINCIPAL FINDINGS: Native Ara h 2/6 was purified from raw peanuts and heated in solution (15 min, 110°C in the presence or absence of glucose. Ara h 2 and 6 were also purified from roasted peanut. Using PBMC and sera from peanut-allergic patients, the cellular proliferative potency and IgE reactivity (reverse EAST inhibition and functionality (basophil degranulation capacity of allergens were assessed. Heating Ara h 2/6 at 110°C resulted in extensive denaturation, hydrolysis and aggregation of the protein, whilst Ara h 2 and 6 isolated from roasted peanut retained its native conformation. Allergen stimulation of PBMC induced proliferation and Th2 cytokine secretion which was unaffected by thermal processing. Conversely, IgE reactivity and functionality of Ara h 2/6 was decreased by heating. Whilst heating-glycation further reduced the IgE binding capacity of the proteins, it moderated their loss of histamine releasing capacity. Ara h 2 and 6 purified from roasted peanut demonstrated the same IgE reactivity as unheated, native Ara h 2/6. CONCLUSIONS/SIGNIFICANCE: Although no effect of processing on T-cell reactivity was observed, heat induced denaturation reduced the IgE reactivity and subsequent functionality of Ara h 2/6. Conversely, Ara h 2 and 6 purified from roasted peanut retained the structure and IgE reactivity/functionality of the native protein which may explain the allergenic potency of this protein. Through detailed molecular study and allergenicity assessment approaches, this work then gives new insights into the effect of thermal processing on structure/allergenicity of peanut proteins.

  4. Effect of Heating and Glycation on the Allergenicity of 2S Albumins (Ara h 2/6) from Peanut

    Science.gov (United States)

    Skov, Per Stahl; Johnson, Phil E.; Rigby, Neil M.; Przybylski-Nicaise, Laetitia; Bernard, Hervé; Wal, Jean-Michel; Ballmer-Weber, Barbara; Zuidmeer-Jongejan, Laurian; Szépfalusi, Zsolt; Ruinemans-Koerts, Janneke; Jansen, Ad P. H.; Savelkoul, Huub F. J.; Wichers, Harry J.; Mackie, Alan R.; Mills, Clare E. N.; Adel-Patient, Karine

    2011-01-01

    Background Peanut allergy is one of the most common and severe food allergies, and processing is known to influence the allergenicity of peanut proteins. We aimed to establish the effect of heating and glycation on the IgE-binding properties and biological activity of 2S albumins (Ara h 2/6) from peanut. Methodology/Principal Findings Native Ara h 2/6 was purified from raw peanuts and heated in solution (15 min, 110°C) in the presence or absence of glucose. Ara h 2 and 6 were also purified from roasted peanut. Using PBMC and sera from peanut-allergic patients, the cellular proliferative potency and IgE reactivity (reverse EAST inhibition) and functionality (basophil degranulation capacity) of allergens were assessed. Heating Ara h 2/6 at 110°C resulted in extensive denaturation, hydrolysis and aggregation of the protein, whilst Ara h 2 and 6 isolated from roasted peanut retained its native conformation. Allergen stimulation of PBMC induced proliferation and Th2 cytokine secretion which was unaffected by thermal processing. Conversely, IgE reactivity and functionality of Ara h 2/6 was decreased by heating. Whilst heating-glycation further reduced the IgE binding capacity of the proteins, it moderated their loss of histamine releasing capacity. Ara h 2 and 6 purified from roasted peanut demonstrated the same IgE reactivity as unheated, native Ara h 2/6. Conclusions/Significance Although no effect of processing on T-cell reactivity was observed, heat induced denaturation reduced the IgE reactivity and subsequent functionality of Ara h 2/6. Conversely, Ara h 2 and 6 purified from roasted peanut retained the structure and IgE reactivity/functionality of the native protein which may explain the allergenic potency of this protein. Through detailed molecular study and allergenicity assessment approaches, this work then gives new insights into the effect of thermal processing on structure/allergenicity of peanut proteins. PMID:21901150

  5. ARA LDPC码在深空测控通信系统中的应用%Applications of ARA LDPC Codes in Deep Space TT&C Systems

    Institute of Scientific and Technical Information of China (English)

    丁溯泉

    2009-01-01

    介绍了CCSDS推荐的应用于深空通信的低密度校验(LDPC)码,根据码字的原型图对这类累积重复累积(ARA)码的特性进行了讨论.ARA码不仅具有良好的性能,同时其编码复杂度低,译码器具备有效的并行实现结构,此外码字具有很好的系列性.结合我国"嫦娥一号"卫星测控通信系统的设计讨论了LDPC码的应用问题,采用LDPC码能够获得更大的编码增益,在我国深空测控通信系统中具有广阔的应用前景.

  6. Cellular intrinsic mechanism affecting the outcome of AML treated with Ara-C in a syngeneic mouse model.

    Directory of Open Access Journals (Sweden)

    Wenjun Zhao

    Full Text Available The mechanisms underlying acute myeloid leukemia (AML treatment failure are not clear. Here, we established a mouse model of AML by syngeneic transplantation of BXH-2 derived myeloid leukemic cells and developed an efficacious Ara-C-based regimen for treatment of these mice. We proved that leukemic cell load was correlated with survival. We also demonstrated that the susceptibility of leukemia cells to Ara-C could significantly affect the survival. To examine the molecular alterations in cells with different sensitivity, genome-wide expression of the leukemic cells was profiled, revealing that overall 366 and 212 genes became upregulated or downregulated, respectively, in the resistant cells. Many of these genes are involved in the regulation of cell cycle, cellular proliferation, and apoptosis. Some of them were further validated by quantitative PCR. Interestingly, the Ara-C resistant cells retained the sensitivity to ABT-737, an inhibitor of anti-apoptosis proteins, and treatment with ABT-737 prolonged the life span of mice engrafted with resistant cells. These results suggest that leukemic load and intrinsic cellular resistance can affect the outcome of AML treated with Ara-C. Incorporation of apoptosis inhibitors, such as ABT-737, into traditional cytotoxic regimens merits consideration for the treatment of AML in a subset of patients with resistance to Ara-C. This work provided direct in vivo evidence that leukemic load and intrinsic cellular resistance can affect the outcome of AML treated with Ara-C, suggesting that incorporation of apoptosis inhibitors into traditional cytotoxic regimens merits consideration for the treatment of AML in a subset of patients with resistance to Ara-C.

  7. Guacamaya: símbolo de temporalidad y fertilidad en dos ejemplos de pintura mural The Macaw: a Symbol of Temporality and Fertility in Two Examples from Mural Painting

    OpenAIRE

    María de Lourdes Navarijo Ornelas

    2012-01-01

    En el pensamiento prehispánico, la guacamaya (Ara macao y Ara militaris) ocupó un lugar preferente, como lo atestigua su imagen plasmada en los murales creados por diferentes pueblos, como el maya, el zapoteca, el teotihuacano, o como se ve en Cacaxtla. Esto no es una coincidencia, por lo que este estudio tiene por objeto analizar y reconocer la identidad taxonómica de los individuos recreados, además de argumentar su presencia en el lenguaje pictórico como un medio de expresión gráfica irref...

  8. Ara h2 levels in dust from homes of individuals with peanut allergy and individuals with peanut tolerance.

    Science.gov (United States)

    Shroba, Jodi; Barnes, Charles; Nanda, Maya; Dinakar, Chitra; Ciaccio, Christina

    2017-05-01

    Approximately 1% of the U.S. population has a peanut allergy. Previous studies that measured peanut protein in house dust support the hypothesis that household peanut consumption may lead to clinical sensitization through transdermal exposure. The aim of this pilot study was to characterize Ara h2 levels in house dust from homes with and without individuals with peanut allergy. Household dust was obtained from homes with an individual with peanut allergy and from homes with no individual with peanut allergy. Ara h2 levels were determined by using a monoclonal antibody-based immunoassay with a level of determination of 150 ng per gram of dust. Peanut consumption information was obtained by questionnaire. A total of 85 dust samples were collected: 38 from homes with a individual with peanut allergy and 47 from control homes. The median Ara h2 level in homes with an individual with peanut allergy was 1236 ng/g (interquartile range [IQR], 256-1342 ng/g), whereas the median Ara h2 level in homes without an individual with peanut allergy was 650 ng/g (IQR, 163-2201 ng/g). Ara h2 levels in dust from homes of individuals with peanut allergy were not significantly lower than in dust from control homes. Of the homes with an individual with peanut allergy, 15 reported complete avoidance of peanut in the home (39%). Ara h2 levels in homes that completely avoided peanuts were not significantly lower than Ara h2 levels in homes that did not restrict peanuts (p = 0.531). Although families may restrict peanuts and peanut products in the home, there was still detectable Ara h2 levels found in homes. Each subject's definition of restriction may vary, there seemed to be peanut protein entering the home, although the protein origin is not known. Possibilities include cross-reactivity with another antigen or transport into the home on some vector. Further investigation of hypotheses regarding cross-reactivity and environmental exposure to Ara h2 is necessary.

  9. Endurance Exercise Increases Intestinal Uptake of the Peanut Allergen Ara h 6 after Peanut Consumption in Humans

    Directory of Open Access Journals (Sweden)

    Lonneke M. JanssenDuijghuijsen

    2017-01-01

    Full Text Available Controlled studies on the effect of exercise on intestinal uptake of protein are scarce and underlying mechanisms largely unclear. We studied the uptake of the major allergen Ara h 6 following peanut consumption in an exercise model and compared this with changes in markers of intestinal permeability and integrity. Ten overnight-fasted healthy non-allergic men (n = 4 and women (n = 6 (23 ± 4 years ingested 100 g of peanuts together with a lactulose/rhamnose (L/R solution, followed by rest or by 60 min cycling at 70% of their maximal workload. Significantly higher, though variable, levels of Ara h 6 in serum were found during exercise compared to rest (Peak p = 0.03; area under the curve p = 0.006, with individual fold changes ranging from no increase to an increase of over 150-fold in the uptake of Ara h 6. Similarly, uptake of lactulose (2–18 fold change, p = 0.0009 and L/R ratios (0.4–7.9 fold change, p = 0.04 were significantly increased which indicates an increase in intestinal permeability. Intestinal permeability and uptake of Ara h 6 were strongly correlated (r = 0.77, p < 0.0001 for lactulose and Ara h 6. Endurance exercise after consumption may lead to increased paracellular intestinal uptake of food proteins.

  10. Endurance Exercise Increases Intestinal Uptake of the Peanut Allergen Ara h 6 after Peanut Consumption in Humans

    Science.gov (United States)

    JanssenDuijghuijsen, Lonneke M.; van Norren, Klaske; Grefte, Sander; Koppelman, Stef J.; Lenaerts, Kaatje; Keijer, Jaap; Witkamp, Renger F.; Wichers, Harry J.

    2017-01-01

    Controlled studies on the effect of exercise on intestinal uptake of protein are scarce and underlying mechanisms largely unclear. We studied the uptake of the major allergen Ara h 6 following peanut consumption in an exercise model and compared this with changes in markers of intestinal permeability and integrity. Ten overnight-fasted healthy non-allergic men (n = 4) and women (n = 6) (23 ± 4 years) ingested 100 g of peanuts together with a lactulose/rhamnose (L/R) solution, followed by rest or by 60 min cycling at 70% of their maximal workload. Significantly higher, though variable, levels of Ara h 6 in serum were found during exercise compared to rest (Peak p = 0.03; area under the curve p = 0.006), with individual fold changes ranging from no increase to an increase of over 150-fold in the uptake of Ara h 6. Similarly, uptake of lactulose (2–18 fold change, p = 0.0009) and L/R ratios (0.4–7.9 fold change, p = 0.04) were significantly increased which indicates an increase in intestinal permeability. Intestinal permeability and uptake of Ara h 6 were strongly correlated (r = 0.77, p < 0.0001 for lactulose and Ara h 6). Endurance exercise after consumption may lead to increased paracellular intestinal uptake of food proteins. PMID:28117717

  11. Purification and characterization of natural Ara h 8, the Bet v 1 homologous allergen from peanut, provides a novel isoform.

    Science.gov (United States)

    Riecken, Susanne; Lindner, Buko; Petersen, Arnd; Jappe, Uta; Becker, Wolf-Meinhard

    2008-04-01

    The peanut allergen Ara h 8 is an important allergen for birch pollen allergic patients because of the cross-reactivity to the homologous Bet v 1. As the existence of Ara h 8 has been shown at the cDNA level so far (AY328088) and the allergen has indirectly been detected as natural protein, it was the aim of our study to identify natural Ara h 8 in peanut extract and to develop a purification strategy. This was achieved using a unique combination of purification steps, including optimized extraction conditions, size exclusion and ion exchange chromatography and treatment of the interfering contaminants with iodoacetic acid. A characterization of the protein by microsequencing showed discrepancies to the deduced amino acid sequence of AY328088. For this reason, we cloned and expressed a new Ara h 8 isoform from cDNA (EU046325). This IgE-reactive protein corresponds to the results of microsequencing, ESI-FTICR-MS and trypsin fingerprinting analysis of the authentic and purified nAra h 8. Apart from the ultimate use of recombinant allergens for diagnostic procedures, there is also a scientific need for the natural counterpart, as it represents an excellent reference point by which to compare protein characteristics and to standardize diagnostic and therapeutic allergens.

  12. Las arañas en agroecosistemas: bioindicadores terrestres de calidad ambiental

    Directory of Open Access Journals (Sweden)

    Miguel Simó

    2011-12-01

    Full Text Available Las arañas son predadores generalistas en ecosistemas terrestres, ampliamente utilizadas en estudios de biodiversidad. En el último siglo, el paisaje de Uruguay se transformó en un mosaico de áreas formadas por ambientes naturales y agroecosistemas. ¿Qué nivel de cambio se espera hallar en la comunidad de arañas si las áreas de estudio están próximas? ¿Qué porcentaje de especies nativas serán reemplazadas con la plantación? ¿Cómo afecta esto a la biodiversidad local? Se realizó un estudio en cuatro áreas vecinas en INIA Las Brujas, Canelones: un bosque ribereño, un bosque de “Espinillo”, una plantación de Eucalyptus globulus y una pradera artificial de Trifolium pratense y Avena sativa. Las arañas fueron capturadas con trampas de caída, trampas de tronco, segado, batido de follaje y colecta manual nocturna. Un total de 3.023 adultos fueron colectados. La mayor abundancia y riqueza de especies se observó en el bosque ribereño. A pesar de la proximidad de los sitios estudiados, se observó un alto reemplazo de especies, especialmente entre áreas naturales y agroecosistemas. Los protocolos de colecta utilizados podrían ser útiles para evaluar el impacto de agroecosistemas con diferentes tipos de manejos sobre la biodiversidad local y su aplicación en la certificación de calidad ambiental.

  13. [Combination induction of cell differentiation of HL-60 cells by daidzein (S86019) and BC-4 or Ara-C].

    Science.gov (United States)

    Jing, Y K; Han, R

    1993-01-01

    Experiments demonstrated that the cell differentiation of HL-60 cells induced by low concentrations of daidzein (S86019), BC-4 (active principle of Boswellia carterii Birdw) and Ara-C was not impressive. However, when they were used in combination 80% of HL-60 cells exhibited NBT reduction and 82% of the cells showed phagocytosis after four days exposure to daidzein and BC-4. When HL-60 cells were exposed to daidzein and Ara-c, 70% of the cells exhibited NBT reduction and phagocytosis. Flow cytometry indicated that the majority of the cells were blocked at G1 phase under the induction of combination of daidzein with BC-4 or Ara-C.

  14. Comunidad de arañas (Arachnida, Araneae del cultivo de alfalfa (Medicago sativa en Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Andrea Armendano

    2010-06-01

    Full Text Available En las últimas décadas se ha dado un interés creciente en el uso de enemigos naturales para controlar plagas de insectos, como arañas. Se estudió una comunidad de arañas en Argentina mediante un muestreo cada dos semanas durante el periodo 2004-2006 en lotes de una hectárea. En el estrato del suelo las arañas fueron colectadas con redes de arrastre y trampas de caída. Se recolecto un total de 6 229 ejemplares (15 familias y 50 especies. Siete familias se encuentran en el estrato herbáceo, las más abundantes fueron: Thomisidae (n=2 012, 32.30%, Araneidae (n=1 516, 24.33% y Oxyopidae (n=604, 9.70%. El suelo habían 14 familias, principalmente: Lycosidae (n=629, 10.10% y Linyphiidae (n=427, 6.85%. Predominaron las arañas cazadoras: por emboscadas (32.99%, al acecho (11.77%, corredoras de suelo (10.84% y tejedoras orbiculares (27.56%. Los índices de diversidad fueron: H´=2.97, Dsp=0.11 y J=0.79, evidenciando una comunidad de arañas moderadamente diversa, con predominio de Misumenops pallidus, Oxyopes salticus, Lycosa poliostoma and L. erythrognatha. Las arañas estuvieron presentes durante el desarrollo fenológico del cultivo con picos de abundancia en primavera y verano.

  15. Purification of Recombinant Peanut Allergen Ara h 1 and Comparison of IgE Binding to the Natural Protein

    Directory of Open Access Journals (Sweden)

    Barry K. Hurlburt

    2014-12-01

    Full Text Available Allergic reactions to food are on the rise worldwide and there is a corresponding increase in interest to understand the molecular mechanisms responsible. Peanut allergies are the most problematic because the reaction often persists into adulthood and can be as severe as anaphylaxis and death. The purpose of the work presented here was to develop a reproducible method to produce large quantities of pure recombinant Ara h 1(rAra h 1 that will enable standardization of immunological tests for patients and allow structural and immunological studies on the wild type and mutagenized forms of the protein. Ara h 1 is initially a pre-pro-protein which, following two endoproteolytic cleavages, becomes the mature form found in peanut. The mature form however has flexible regions that make it refractory to some structural studies including crystallography. Therefore, independent purification of the mature and core regions was desirable. Expression constructs were synthesized cDNA clones for each in a pET plasmid vector without tags. Codons were optimized for expression in E. coli. High-level expression was achieved in BL21 strains. Purification to near homogeneity was achieved by a combination of ammonium sulfate precipitation and ion exchange chromatography. The purified rAra h 1 was then compared with natural Ara h 1 for IgE binding. All patients recognized both the folded natural and rAra h 1, but the IgE binding to the rArah1 was significantly reduced in comparison to the natural allergen, which could potentially make it useful for immunotherapeutic purposes.

  16. Chemical abundance analysis of symbiotic giants. RW Hya, SY Mus, BX Mon, and AE Ara

    CERN Document Server

    Galan, Cezary; Hinkle, Kenneth H; Schmidt, Miroslaw R; Gromadzki, Mariusz

    2014-01-01

    Symbiotic stars are the long period, binary systems of strongly interacting stars at the final stages of evolution which can be useful tool to understand the chemical evolution of the Galaxy and the formation of stellar populations. Knowledge of the chemical composition of the symbiotic giants is essential to advancing our understanding of these issues but unfortunately reliably determinations exist only in a few cases. We perform a program for detailed chemical composition analysis in over 30 symbiotic giants, based on the high resolution, near-IR spectra, obtained with Phoenix/Gemini South spectrometer. The methods of the standard LTE analysis is used to obtain photospheric abundances of CNO and elements around iron peak. Here we present results obtained for four objects: RW Hya, SY Mus, BX Mon, and AE Ara. Our analysis revealed a significantly sub-solar metallicity (Me/H ~ -0.75) for RW Hya, a slightly sub-solar metallicities (Me/H ~ 0.2-0.3) in BX Mon and AE Ara, and a near-solar metallicity in SY Mus. 12...

  17. Kitle iletişim araçları ve suç olgusu

    OpenAIRE

    dilber, fadime

    2014-01-01

    İletişim, zamana paralel olarak hızlı değişim ve gelişmeler göstermiştir. Bu gelişme günümüzde o kadar hızlı bir şekilde devam etmektedir. Küreselleşen dünyamızda bireyler her bilgiye çok kısa bir sürede ulaşma imkânına kavuşmaktadırlar. Özellikle iletişimin kitleselleşmesi bilgiye ulaşmayı kolaylaştıran en önemli unsurlardan biri olmuştur. Kitle iletişimi, kitlesel özellik taşıyan araçlarla, televizyon, gazete, radyo, internet, sinema vb. araçlarla gerçekleştirilen iletişimdir. Kişilerin gün...

  18. Caiçaras, caboclos and natural resources: rules and scale patterns Caiçaras, caboclos e recursos naturais: regras e padrões de escala

    Directory of Open Access Journals (Sweden)

    Alpina Begossi

    1999-12-01

    Full Text Available One important question concerning the sustainability of local or native populations refers to their interaction with local and global institutions. We should expect that populations with capacity to interact economically and politically with institutions, might show a better chance for their ecological and cultural continuity, as well as for their system of trade and subsistence. The level of ecological and social interaction of local populations, following concepts from ecology, occurs on different scales: for example, from the territories of individual fishermen on the Atlantic Forest coast to organizations of community Extractive Reserves in the Amazon. The scale of organization (individual/family/community may influence the capacity to deal with institutions. This study analyses how Brazilian native populations, especially caiçaras of the Atlantic Forest coast, and caboclos from the Amazon, have interacted with regional, national and global institutions, concerning environmental demands. Concepts such as common management, natural capital, resilience and sustainability are useful to understand these illustrative cases.Uma questão importante da sustentabilidade de populações locais ou nativas se refere à interação com as instituições locais e globais. Podemos esperar que populações que demonstrem capacidade de interagir de forma econômica e política com as instituições apresentem também uma chance maior de continuidade cultural e ecológica, assim como de seus sistemas de troca e subsistência. O nível da interação ecológica e social das populações locais, seguindo conceitos da ecologia, ocorrem sob escalas diferentes: por exemplo, dos territórios individuais de pescadores da Mata Atlântica às organizações de comunidades em Reservas Extrativistas, na Amazônia. A escala organizacional (individual/familiar/comunitária pode influenciar a capacidade de lidar com as instituições.Esse estudo analisa como popula

  19. Lactobacillus buchneri S-layer as carrier for an Ara h 2-derived peptide for peanut allergen-specific immunotherapy.

    Science.gov (United States)

    Anzengruber, Julia; Bublin, Merima; Bönisch, Eva; Janesch, Bettina; Tscheppe, Angelika; Braun, Matthias L; Varga, Eva-Maria; Hafner, Christine; Breiteneder, Heimo; Schäffer, Christina

    2017-05-01

    Peanut allergy is an IgE-mediated severe hypersensitivity disorder. The lack of a treatment of this potentially fatal allergy has led to intensive research on vaccine development. Here, we describe the design and initial characterization of a carrier-bound peptide derived from the most potent peanut allergen, Ara h 2, as a candidate vaccine. Based on the adjuvant capability of bacterial surface (S-) layers, a fusion protein of the S-layer protein SlpB from Lactobacillus buchneri CD034 and the Ara h 2-derived peptide AH3a42 was produced. This peptide comprised immunodominant B-cell epitopes as well as one T cell epitope. The fusion protein SlpB-AH3a42 was expressed in E. coli, purified, and tested for its IgE binding capacity as well as for its ability to activate sensitized rat basophil leukemia (RBL) cells. The capacity of Ara h 2-specific IgG rabbit-antibodies raised against SlpB-AH3a42 or Ara h 2 to inhibit IgE-binding was determined by ELISA inhibition assays using sera of peanut allergic patients sensitized to Ara h 2. IgE specific to the SlpB-AH3a42 fusion protein was detected in 69% (25 of 36) of the sera. Despite the recognition by IgE, the SlpB-AH3a42 fusion protein was unable to induce β-hexosaminidase release from sensitized RBL cells at concentrations up to 100ng per ml. The inhibition of IgE-binding to the natural allergen observed after pre-incubation of the 20 sera with rabbit anti-SlpB-AH3a42 IgG was more than 30% for four sera, more than 20% for eight sera, and below 10% for eight sera. In comparison, anti-Ara h 2 rabbit IgG antibodies inhibited binding to Ara h 2 by 48% ±13.5%. Our data provide evidence for the feasibility of this novel approach towards the development of a peanut allergen peptide-based carrier-bound vaccine. Our experiments further indicate that more than one allergen-peptide will be needed to induce a broader protection of patients allergic to Ara h 2.

  20. Comportamiento termo-higro-mecánico de las fibras de seda de araña

    OpenAIRE

    Plaza Baonza, Gustavo Ramón

    2011-01-01

    Las fibras de seda de araña constituyen un material enormemente atractivo. Su elevada resistencia y deformabilidad les permite almacenar gran cantidad de energía de deformación, que pueden después disipar, de modo que son especialmente apropiadas para absorber impactos. Este atractivo ha hecho que se hayan dedicado elevadas sumas de dinero a intentar producir fibras de proteínas similares a las de la seda de araña mediante ingeniería gen ética. El estudio de las propiedades de las fibras de s...

  1. Mobil Cihaz Temelli Araç Hız Uyarı Sistemi

    Directory of Open Access Journals (Sweden)

    Gül Fatma TÜRKER

    2016-04-01

    Full Text Available Artan araç sayısının neden olduğu trafik yoğunluğu sürücülerin güvenli bir ulaşım sağlaması için daha dikkatli olmasını gerektirmiştir. Gelişen teknoloji içerisinde mobil cihazlar özellikle görüntüleme ve kablosuz haberleşme yetenekleri ile akıllı trafik uygulamalarında kullanılmaya başlanmıştır. Örneğin, karayolu ulaşımında trafik akışının sağlanması, sürücülerin olası kazalara karşı yol, trafik ve çevre hakkında önceden bilgilendirilmesi, araç hakkında bilgilerin paylaşılması gibi uygulamalar yer almaktadır. Bu çalışmada, iPhone ile bir aracın network bilgisine erişim sağlanarak, sürücüyü bilgilendirme ve uyarma amaçlı bir uygulama geliştirilmiştir. Araçlarda kullanılan veri yollarından biri olan CAN (Controller Area Network veri yolu üzerinden ELM327 cihazı ile hız verileri alınarak mobil bir uygulama üzerinde izlenmiştir. iPhone ile araç veri trafiğine erişim sağlamak için wi-fi teknoloji ile desteklenen diagnostik cihazı  seçilmiştir. Ayrıca mobil cihaz üzerinde  yer alan GPS (Global Positioning System sensörü ile konum verileri uygulamada sürücü bilgilendirme amaçlı kullanılmıştır. Karayollarında hız sınırı gerektiren durumlarda seçilen değerin aşılması ile sürücünün uyarılması sağlanmıştır. Trafikte araçların anlık değişken verilerinin paylaşıma açık olması ile Trafik Yönetim ve Denetim (TMS-Traffic Management System sistemlerine katkı sağlayacağı öngörülmüştür.

  2. The value of fludarabine in addition to ARA-C and G-CSF in the treatment of patients with high-risk myelodysplastic syndromes and AML in elderly patients.

    NARCIS (Netherlands)

    Ossenkoppele, G.J.; Graveland, W.J.; Sonneveld, P.; Daenen, S.M.G.J.; Biesma, D.H.; Verdonck, L.F.; Schaafsma, M.R.; Westveer, P.H.; Peters, G.J.; Noordhuis, P.; Muus, P.; Selleslag, D.; Holt, B. van der; Delforge, M.; Lowenberg, B.; Verhoef, G.E.

    2004-01-01

    Fludarabine in addition to cytosine-arabinoside (ARA-C) increases the accumulation of ARA-C-5'-triphosphate (ARA-CTP), which is responsible for the cytotoxic effect in leukemic blasts. In a randomized phase 3 trial, patients with high-risk myelodysplastic syndrome (MDS) (n = 91) or elderly patients

  3. The value of fludarabine in addition to ARA-C and G-CSF in the treatment of patients with high-risk myelodysplastic syndromes and AML in elderly patients

    NARCIS (Netherlands)

    Ossenkoppele, GJ; Graveland, WJ; Sonneveld, P; Daenen, SMGJ; Biesma, DH; Verdonck, LF; Schaafsma, R; Westveer, PHM; Peters, F; Noordhuis, P; Muus, P; van der Holt, R; Delforge, M; Lowenberg, B; Verhoef, GEG

    2004-01-01

    Fludarabine in addition to cytosine-arabinoside (ARA-C) increases the accumulation of ARA-C-5'-triphosphate (ARA-CTP), which is responsible for the cytotoxic effect in leukemic blasts. In a randomized phase 3 trial, patients with high-risk myelodysplastic syndrome (MDS) (n = 91) or elderly patient's

  4. Hunting and use of terrestrial fauna used by Caiçaras from the Atlantic Forest coast (Brazil

    Directory of Open Access Journals (Sweden)

    Alves Rômulo RN

    2009-11-01

    Full Text Available Abstract Background The Brazilian Atlantic Forest is considered one of the hotspots for conservation, comprising remnants of rain forest along the eastern Brazilian coast. Its native inhabitants in the Southeastern coast include the Caiçaras (descendants from Amerindians and European colonizers, with a deep knowledge on the natural resources used for their livelihood. Methods We studied the use of the terrestrial fauna in three Caiçara communities, through open-ended interviews with 116 native residents. Data were checked through systematic observations and collection of zoological material. Results The dependence on the terrestrial fauna by Caiçaras is especially for food and medicine. The main species used are Didelphis spp., Dasyprocta azarae, Dasypus novemcinctus, and small birds (several species of Turdidae. Contrasting with a high dependency on terrestrial fauna resources by native Amazonians, the Caiçaras do not show a constant dependency on these resources. Nevertheless, the occasional hunting of native animals represents a complimentary source of animal protein. Conclusion Indigenous or local knowledge on native resources is important in order to promote local development in a sustainable way, and can help to conserve biodiversity, particularly if the resource is sporadically used and not commercially exploited.

  5. COUPLING OF THE ANTIVIRAL DRUG ARA-AMP TO LACTOSAMINATED ALBUMIN LEADS TO SPECIFIC UPTAKE IN RAT AND HUMAN HEPATOCYTES

    NARCIS (Netherlands)

    JANSEN, RW; KRUIJT, JK; VANBERKEL, TJC; MEIJER, DKF

    1993-01-01

    We covalently coupled 9-beta-D-arabinofuranosyladenine 5'-monophosphate (ara-AMP) to the carrier molecule lactosaminated human serum albumin using a water-soluble carbodiimide with a two-step conjugation method (pH 4.5 and pH 7.5) instead of the commonly used single-step conjugation at pH 7.5. This

  6. Enfermedad por arañazo de gato: Presentación de un caso

    OpenAIRE

    Ileana Alvarez Lam; Jorge Ponce Bittar; Roberto Silva

    2003-01-01

    La enfermedad por arañazo de gato (EAG) es un proceso infeccioso benigno, relativamente frecuente en niños y adolescentes producido por Bartonella henselae. La manifestación más frecuente de la enfermedad es la presencia de una lesión de inoculación seguida de linfadenopatía regional con presencia de fiebre u otros síntomas generales o sin estos. Se reporta el caso de un paciente de 13 años de edad que la afección se inició con adenopatía axilar izquierda y cuadro febril de 37,5 °C - 38,5...

  7. Doppler imaging of the double-lined active binary V824 Ara

    CERN Document Server

    Kriskovics, Levente; Kővári, Zsolt; Garcia-Alvarez, David; Oláh, Katalin

    2013-01-01

    We introduce an iterative spectral disentangling technique combined with Doppler imaging in order to recover surface temperature maps for both components of double-lined active binary systems. Our method provides an opportunity to separate spectra of the active components while minimizing the unwanted disturbances on the given line profile from the other component. The efficiency of the method is demonstrated on real data of the double-lined RS CVn-type binary V824 Ara. The resulting Doppler images reveal cool spots on the polar regions as well as low-latitude features on both of the stars. Moreover, both components have hot spots, that are facing each other. This may indicate interconnection between the stellar magnetic fields.

  8. Microbiota conjuntival de cães sadios da cidade de Araçatuba (SP)

    OpenAIRE

    Andrade Alexandre Lima de; Stringhini Graciele; Bonello Fábio Luis; Marinho Márcia; Perri Silvia Helena Venturoli

    2002-01-01

    Objetivo: Identificar os microrganismos da conjuntiva ocular de cães clinicamente sadios na região de Araçatuba (SP), no verão e no inverno. Métodos: Foram utilizados quarenta cães, machos e fêmeas, com idade variando entre 2 e 5 anos. Após limpeza ocular com água tratada, foram realizadas colheitas de material do saco conjuntival inferior com auxílio de swabs estéreis, para posterior isolamento e identificação de bactérias aeróbicas, anaeróbicas e fungos. Resultados: As bactérias de maior oc...

  9. Kefir Mikroflorası Üzerinde Araştırma

    OpenAIRE

    Ergüllü, Erol; Üçüncü, Mustafa

    2015-01-01

      Çalışmada, çeşitli yörelerden sağlanmış 7 kefir örneğinin mikroflorası araştırılmış ve elde edilen bulgulara göre, kefir mikroflorasında süt asidi bakterileri (Streptokok ve Laktobasiller) ile mayaların çoğunlukta olduğu belirlenmiştir. Bu bakteri türlerinden her birinin kefir oluşumunda ayrı bir yeri bulunmaktadır. Süt asidi bakterileri sütü pıhtılaştırmakta ve bunlardan bazıları da ayrıca uçucu asitler oluşturarak, kefirin tat ve kokusunun meydana gelmesine katkıda bulunmaktadırlar. Mayal...

  10. Kefir Mikroflorası Üzerinde Araştırma

    OpenAIRE

    Ergüllü, Erol; Üçüncü, Mustafa

    2014-01-01

      Çalışmada, çeşitli yörelerden sağlanmış 7 kefir örneğinin mikroflorası araştırılmış ve elde edilen bulgulara göre, kefir mikroflorasında süt asidi bakterileri (Streptokok ve Laktobasiller) ile mayaların çoğunlukta olduğu belirlenmiştir. Bu bakteri türlerinden her birinin kefir oluşumunda ayrı bir yeri bulunmaktadır. Süt asidi bakterileri sütü pıhtılaştırmakta ve bunlardan bazıları da ayrıca uçucu asitler oluşturarak, kefirin tat ve kokusunun meydana gelmesine katkıda bulunmaktadırlar. Mayal...

  11. Cloning, expression and characterization of glycoside hydrolase family 11 endoxylanase from Bacillus pumilus ARA.

    Science.gov (United States)

    Qu, Wei; Shao, Weilan

    2011-07-01

    An endoxylanase gene, xynA, was cloned from Bacillus pumilus ARA and expressed in Escherichia coli. The open reading frame of the xynA gene was 687 bp encoding a signal peptide and a mature xylanase with a molecular mass of 23 kDa. The enzyme was categorized as a glycosyl hydrolase family 11 member based on the sequence analysis of the putative catalytic domain. The recombinant XynA (Bpu XynA) was purified to homogeneity by Ni-NTA and ion exchange chromatography on DEAE-Sepharose FF. The enzyme exhibited highest activity at pH 6.6 and 50°C. The purified Bpu XynA was stable for at least 2 h at 45°C, and retained over 50% residual activity after being incubated at 60°C for 1 h. The activity of the xylanase was not significantly affected by metal ions and EDTA. The K ( m ) and K ( cat ) /K ( m ) of Bpu XynA for oat-spelt xylan were 5.53 mg/ml and 10.14 ml/mg s at 50°C and pH 6.6. The main product of hydrolysis by Bpu XynA was xylooligosaccharide. The results revealed that the consumption of grass xylan by B. pumilus ARA depended on the synergistic reactions of Bpu XynA and Bpu arabinosidase, and that a typical GH11 xylanase e.g. Tla XynA had capability to remove the side chain of xylan. The properties Bpu XynA make it promising for application in the production of Bifidobacterium growth-promoting factors and in feed industry.

  12. Evaluating the metallic pollution of riverine water and sediments: a case study of Aras River.

    Science.gov (United States)

    Nasehi, F; Hassani, A H; Monavvari, M; Karbassi, A R; Khorasani, N

    2013-01-01

    Metallic pollution caused by elements Zn, Cu, Fe, Pb, Ni, Cd, and Hg in water and sediments of Aras River within a specific area in Ardabil province of Iran is considered. Water and sediment samples were collected seasonally and once respectively from the five selected stations. Regarding WHO published permissible values, only Ni concentration in spring and summer water samples has exceeded the acceptable limit up to four times greater than the limit. The concentration of metals Ni, Pb, and Fe in river water shows a direct relationship with river water discharge and the amount of precipitation. Enhanced soil erosion, bed load dissolution, and runoffs may play a key role in remarkable augmentation of metallic ions concentration. Furthermore, excessive use of pesticides which contain a variety of metallic ions (mainly Cu) in spring and summer may also result in an increase in the metals' concentration. The potential risk of Ni exposure to the water environment of the study area is assigned to juice, dairy products, edible oil, and sugar cane factories as well as soybean crop lands which are located within the sub-basin of Aras River in the study area. Regarding the sediment samples, the bioavailable metal concentrations indicate an ascending order from the first station towards the last one. In comparison with earth crust, sedimental and igneous rocks the reported metallic concentration values, except for Cd, lie within the low-risk status. Regarding Cd, the reported values in some stations (S2, S4, and S5) are up to ten times greater than that of shale which may be considered as a remarkable risk potential. The industrial and municipal wastewater generated by Parsabad moqan industrial complex and residential areas, in addition to the discharges of animal husbandry centers, may be addressed as the key factors in the sharp increase of metallic pollution potential in stations 4 and 5.

  13. Dietary Changes over Time in a Caiçara Community from the Brazilian Atlantic Forest

    Directory of Open Access Journals (Sweden)

    Priscila L. MacCord

    2006-12-01

    Full Text Available Because they are occurring at an accelerated pace, changes in the livelihoods of local coastal communities, including nutritional aspects, have been a subject of interest in human ecology. The aim of this study is to explore the dietary changes, particularly in the consumption of animal protein, that have taken place in Puruba Beach, a rural community of caiçaras on the São Paulo Coast, Brazil, over the 10-yr period from 1992-1993 to 2002-2003. Data were collected during six months in 1992-1993 and during the same months in 2002-2003 using the 24-hr recall method. We found an increasing dependence on external products in the most recent period, along with a reduction in fish consumption and in the number of fish species eaten. These changes, possibly associated with other nonmeasured factors such as overfishing and unplanned tourism, may cause food delocalization and a reduction in the use of natural resources. Although the consequences for conservation efforts in the Atlantic Forest and the survival of the caiçaras must still be evaluated, these local inhabitants may be finding a way to reconcile both the old and the new dietary patterns by keeping their houses in the community while looking for sources of income other than natural resources. The prospect shown here may reveal facets that can influence the maintenance of this and other communities undergoing similar processes by, for example, shedding some light on the ecological and economical processes that may occur within their environment and in turn affect the conservation of the resources upon which the local inhabitants depend.

  14. Targeted deletion of the ara operon of Salmonella typhimurium enhances L-arabinose accumulation and drives PBAD-promoted expression of anti-cancer toxins and imaging agents.

    Science.gov (United States)

    Hong, Hyun; Lim, Daejin; Kim, Geun-Joong; Park, Seung-Hwan; Sik Kim, Hyeon; Hong, Yeongjin; Choy, Hyon E; Min, Jung-Joon

    2014-01-01

    Tumor-specific expression of antitumor drugs can be achieved using attenuated Salmonella typhimurium harboring the PBAD promoter, which is induced by L-arabinose. However, L-arabinose does not accumulate because it is metabolized to D-xylulose-5-P by enzymes encoded by the ara operon in Salmonellae. To address this problem, we developed an engineered strain of S. typhimurium in which the ara operon is deleted. Linear DNA transformation was performed using λ red recombinase to exchange the ara operon with linear DNA carrying an antibiotic-resistance gene with homology to regions adjacent to the ara operon. The ara operon-deleted strain and its parental strain were transformed with a plasmid encoding Renilla luciferase variant 8 (RLuc8) or cytolysin A (clyA) under the control of the PBAD promoter. Luciferase assays demonstrated that RLuc8 expression was 49-fold higher in the ara operon-deleted S. typhimurium than in the parental strain after the addition of L-arabinose. In vivo bioluminescence imaging showed that the tumor tissue targeted by the ara operon-deleted Salmonella had a stronger imaging signal (~30-fold) than that targeted by the parental strain. Mice with murine colon cancer (CT26) that had been injected with the ara operon-deleted S. typhimurium expressing clyA showed significant tumor suppression. The present report demonstrates that deletion of the ara operon of S. typhimurium enhances L-arabinose accumulation and thereby drives PBAD-promoted expression of cytotoxic agents and imaging agents. This is a promising approach for tumor therapy and imaging.

  15. Estratigrafia do Grupo Araí: registro de rifteamento paleoproterozoico no Brasil Central

    Directory of Open Access Journals (Sweden)

    Maria Luiza Nascentes Tanizaki

    Full Text Available O Grupo Araí, composto por um conjunto de rochas metassedimentares e metavulcânicas, de baixo grau metamórfico, sobreposto à Suíte Aurumina e à Formação Ticunzal, constitui uma sucessão depositada em uma bacia do tipo rifte intracontinental, cuja evolução iniciou antes de 1,77 Ga no Paleoproterozoico. Esse grupo foi subdividido, classicamente, em Formação Arraias (sequência continental e Formação Traíras (sequência marinha. Entretanto, a análise, compilação e integração dos dados geológicos no que tange à geologia sedimentar e à tectono-estratigrafia mostraram a necessidade de subdividi-lo em quatro unidades: Água Morna, Arraias, Caldas e Traíras. A Formação Água Morna representa um sistema deposicional fluvial entrelaçado, instituído em uma bacia do tipo SAG-intracontinental, no contexto tectônico da fase pré-rifte, representando a Tectonossequência Água Morna submetida a processos de subsidência termal. A Formação Arraias constitui um espesso pacote de sedimentos continentais, subdividida nos membros Cubículo (leques aluviais, Prata (fluvial entrelaçado, Mutum (eólico, Ventura (lacustre e Buracão (vulcânicas e piroclásticas, que representam a Tectonossequência Arraias e constituem os tratos de sistema da fase ritfe relacionados essencialmente com a subsidência mecânica da bacia. A Formação Caldas compõe a sequência deposicional transicional do Grupo Araí, subdividida em dois membros que constituem um sistema de praia: membro inferior (backshoreeforeshore e membro superior (shoreface. A Formação Traíras representa a sequência marinha, subdividida nos membros Boqueirão (plataforma siliciclástica dominada por marés, Rio Preto (plataforma siliciclástica dominada por marés e Rosário (plataforma mista dominada por marés, que constitui a Tectonossequência Traíras desenvolvida no decurso da subsidência flexural. Essa proposta estratigráfica se mostrou bastante funcional, permitindo a

  16. Facebook’ta Bulunma Amacı ve Facebook Reklamlarına Duyulan İlgi Arasındaki İlişki

    OpenAIRE

    Ay, Arş. Grv. Ufuk

    2014-01-01

    Bu araştırmada Facebook’ta bulunma amaçları ile Facebook reklamlarına duyulan ilgi arasında bir ilişki olup olmadığı ölçülmüştür. Bu amaçla internet üzerinden 283 kişiye anket uygulanmıştır. Araştırmanın bulguları Facebook’ta bulunma amaçları olarak tanımlanan “sosyal arama” ve “sosyal tarama” değişkenleriyle Facebook reklamlarına duyulan ilgi arasında anlamlı ilişkiler olduğunu destekler niteliktedir.

  17. Facebook’ta Bulunma Amacı ve Facebook Reklamlarına Duyulan İlgi Arasındaki İlişki

    OpenAIRE

    Ay, Arş. Grv. Ufuk

    2014-01-01

    Bu araştırmada Facebook’ta bulunma amaçları ile Facebook reklamlarına duyulan ilgi arasında bir ilişki olup olmadığı ölçülmüştür. Bu amaçla internet üzerinden 283 kişiye anket uygulanmıştır. Araştırmanın bulguları Facebook’ta bulunma amaçları olarak tanımlanan “sosyal arama” ve “sosyal tarama” değişkenleriyle Facebook reklamlarına duyulan ilgi arasında anlamlı ilişkiler olduğunu destekler niteliktedir.

  18. Facebook’ta Bulunma Amacı ve Facebook Reklamlarına Duyulan İlgi Arasındaki İlişki

    OpenAIRE

    Ay, Arş. Grv. Ufuk

    2016-01-01

    Bu araştırmada Facebook’ta bulunma amaçları ile Facebook reklamlarına duyulan ilgi arasında bir ilişki olup olmadığı ölçülmüştür. Bu amaçla internet üzerinden 283 kişiye anket uygulanmıştır. Araştırmanın bulguları Facebook’ta bulunma amaçları olarak tanımlanan “sosyal arama” ve “sosyal tarama” değişkenleriyle Facebook reklamlarına duyulan ilgi arasında anlamlı ilişkiler olduğunu destekler niteliktedir.

  19. Ekonomija vatrogasnih pjenila, pjena i mobilnih sustava gašenja požara pjenom prema europskim normama

    OpenAIRE

    Regent, Aleksandar

    2016-01-01

    Europske norme za pjene, pjenila i sustave pjene postoje već dugi niz godina. Zbog njihove složenosti, vatrogasna zajednica i struka zaštite od požara ih ne poznaje dobro niti ih u dovoljnoj mjeri koristi, iako su one primjenjive na fiksne i na mobilne sustave pjene. Analizirani su zahtjevi za gustoćom primjene i vremenom djelovanja mobilnih sustava pjene pri gašenju požara lokve površine do 400 m2. Gustoća primjene značajno ovisi o klasi pjenila, što dalje određuje količinu pjenila potrebnog...

  20. A fotografia em Campanha: Paulino Ara?jo entre retratos e vistas constituindo mem?rias (1907-1970).

    OpenAIRE

    Reis, Raquel de F?tima dos

    2013-01-01

    Este trabalho investiga a trajet?ria de Paulino Ara?jo a partir da mem?ria material e simb?lica em torno da sua atua??o como fot?grafo na cidade de Campanha no Sul de Minas Gerais durante seis d?cadas do s?culo XX. Busca-se entender o circuito social da fotografia, a demanda social por imagens e a pr?tica que o fot?grafo desenvolveu, registrando pessoas e paisagens. Discute-se tamb?m acerca da Cole??o Paulino Ara?jo, sua caracteriza??o, temas e limita??es e se estabelece uma an?lise acerca da...

  1. Homology modeling and validation of SAS2271 transcriptional regulator of AraC family in Staphylococcus aureus

    Directory of Open Access Journals (Sweden)

    Money Gupta

    2013-02-01

    Full Text Available Objective: To predict three dimensional structure of AraC Family transcription regulator protein in staphylococcus aureus involved in causing virulence. Methods: Evolutionary dynamics of S. aureus reveled that several mutations preceding virulence lead to truncated proteins that plays an important role in virulence. The Structural templates are identified using homology search and then homology modelling is used to get the 3-D structure of the protein. Results: The 3-D structure of SAS2271 transcriptional factor of AraC family in MSSA476 strain of S. aureus was modelled and validated using the Ramachandran plot. Conclusions: The knowledge of 3-D structure of the protein will be helpful in identifying its biochemical function along with its regulatory mechanism in causing virulence.

  2. Yatırım Araçları Tercihlerinin Markov Analizi ile Yorumlanması

    Directory of Open Access Journals (Sweden)

    Ersoy Öz

    2008-07-01

    Full Text Available Bu çalışmada İstanbul ilinde Bilgi-İşlem sektöründe çalışan 189 kişiye düzenlenen ankete göre kişilerin tercih ettikleri yatırım araçları ile ilgili bir değerlendirme yapılmıştır. Yatırım araçları arasında gelecekte tercih edilecek yatırım aracının halen kullandıkları yatırım aracı ile olan ilişkileri "Markov Zincirleri" kullanılarak belirlenmiştir. Markov Zincirlerinin temel özelliklerinden olan uzun dönem denge vektörü kullanılarak anket sonuçları için yatırım araçlarının uzun dönem denge durumları hesaplanmıştır. Ayrıca, ankette yer alan her bir durumun diğer durumlara ulaşabilmesi için gerekli olan adım (periyod sayısı bulunmuştur. Markov Zincirleri için matris hesaplamalarında ve grafik çizimlerinde MATLAB7.5 ve WINQSB uygulama programları kullanılmıştır.

  3. Characterization of fruits from the savanna: Araça (Psidium guinnensis Sw. and Marolo (Annona crassiflora Mart.

    Directory of Open Access Journals (Sweden)

    Clarissa Damiani

    2011-09-01

    Full Text Available The objective of this work was to characterize fruits from the Brazilian savanna by means of physical and chemical analyses. The results obtained for araça peel, araça pulp and marolo pulp, respectively, were: moisture (77.03, 80.41 and 70.56 g.100 g-1, ash (0.65, 0.44 and 0.54 g.100 g-1, protein (1.39, 1.87 and 1.99 g.100 g-1, lipids (0.32, 0.33 and 2.36 g.100 g-1, total carbohydrates (90.88 , 78.25 and 24.55 g.100 g-1, total soluble sugars (8.45, 9.99 and 127.4 g.100 g-1, pH (3.76, 3.99 and 4.49, soluble solids (11° Brix, 8.8 °Brix and 21.4 °Brix and antioxidant potential (16.33, 12.75 and 34.29 discoloration DPPH/100 mL. Calcium was the predominant mineral in araça (490 mg.kg-1 peel and 485 mg.kg-1 pulp while magnesium was in marolo (350 mg.kg-1. Citric acid was the predominant organic acid in araça (3125 μg.g-1 peel and 881.25 μg.g-1 pulp and Malic acid was predominant in marolo (76.68 μg.g-1. Therefore, given their nutrient contents, the consumption of these fruits from the savanna should be encouraged.

  4. IgE Sensitization to the Nonspecific Lipid-Transfer Protein Ara h 9 and Peanut-Associated Bronchospasm

    Directory of Open Access Journals (Sweden)

    Peter D. Arkwright

    2013-01-01

    Full Text Available Allergen component analysis is now available in many laboratories. The aim of this study was to examine the possible association between peanut allergen IgE components and severity of clinical reactions in patients with a history of peanut allergy. Data and sera collected from 192 patients within the Manchester Allergy Research Database and Serum Bank were used in this retrospective study. Sensitization to peanut specific IgE and Ara h 1, 2, 3, and 8 peanut IgE components, as measured by fluoroenzyme immunoassay, was not associated with anaphylaxis. In contrast, sensitization to the lipid-transfer protein Ara h 9 was significantly more prevalent in patients with peanut-associated bronchospasm (26% versus 9% of patients, even after adjusting for potential confounding effects of age, gender, and severity of concomitant chronic atopic diseases. Patients who were sensitized to Ara h 9 were more likely to have ingested rather than just have had skin contact with peanut and have a more rapid onset of symptoms. These results are consistent with observations that sensitization to heat and protease resistant lipid-transfer protein components of hazelnut, grains, and fruit is predictive of anaphylaxis.

  5. Microbiota conjuntival de cães sadios da cidade de Araçatuba (SP

    Directory of Open Access Journals (Sweden)

    Andrade Alexandre Lima de

    2002-01-01

    Full Text Available Objetivo: Identificar os microrganismos da conjuntiva ocular de cães clinicamente sadios na região de Araçatuba (SP, no verão e no inverno. Métodos: Foram utilizados quarenta cães, machos e fêmeas, com idade variando entre 2 e 5 anos. Após limpeza ocular com água tratada, foram realizadas colheitas de material do saco conjuntival inferior com auxílio de "swabs" estéreis, para posterior isolamento e identificação de bactérias aeróbicas, anaeróbicas e fungos. Resultados: As bactérias de maior ocorrência foram o Staphylococcus aureus e o Staphylococcus beta-haemolyticus. O fungo de maior ocorrência foi Penicilium sp. Conclusão: Pôde-se concluir que houve variação da microbiota conjuntival normal em função da estação do ano. Dos microrganismos isolados, o único que apresentou diferença estatística significativa quanto à incidência sazonal foi o Staphylococcus beta-haemolyticus, que foi isolado apenas no inverno.

  6. ALERGENUL ARA H3, GLOBULINA DE REZERVĂ 11S DIN SEMINŢELE DE ARAHIDE 1. PROTEOLIZA LIMITATĂ CU PAPAINĂ

    Directory of Open Access Journals (Sweden)

    Ala CHERDIVARĂ

    2017-07-01

    Full Text Available Proteoliza globulinei de rezervă 11S din seminţele de arahide, Ara h3, cu papaină începe cu cuscindarea secvenței C-terminale extinse a α-catenelor, care cuprinde regiunea α-helixurilor. Clivarea ulterioară a buclei dintre β-strendurile E' şi F' din partea centrală a β-barrelui din α-catene duce la formarea fragmentelor, legate cu β-catenele intacte prin legătură disulfidică, precum şi reţinute în molecula globulinei 11S parţial hidrolizată prin interacţiuni necovalente. Conform scenariului proteolizei descrise, acţiunea iniţială a papainei distruge regiunea C-terminală a α-catenelor, în care sunt prezenţi trei din cei patru determinanţi antigenici (epitopii IgE, identificaţi în globulina 11S din arahide. Astfel, gradul de alergenicitate a Ara h3 poate fi substanțial redus prin proteoliza sa limitată cu papaină.ALLERGEN ARA H3, STORAGE 11S GLOBULIN FROM PEANUT SEEDS 1. PAPAIN LIMITED PROTEOLYSISPapain proteolysis of the storage 11S globulin Ara h3 from peanut seeds starts from the detachment of an extended a-chain C-terminal sequence covering the region of a-helices. Further cleavage of a loop between b-strands E’ and F’ inside the central part of a-chain b-barrel occurs generating fragments connected with intact b-chains via a disulfide bond and those retained inside the molecule of partially hydrolyzed 11S globulin due to non-covalent interactions. In accordance with the described proteolysis scenario, the C-terminal a-chain region containing three of the four antigen determinants (IgE epitopes identified in the peanut 11S globulin is destroyed during the initial papain action. Therefore, the level of Ara h3 allergenicity can be decreased via papain limited proteolysis.

  7. Recycling of resting cells in the JB-1 ascites tumour after treatment with 1-beta-D-arabinofuranosylcytosine (ara-C).

    Science.gov (United States)

    Dombernowsky, P; Bichel, P

    1976-01-01

    Resting cells in tumours present a major problem in cancer chemotherapy. In the plateau phase of grwoth of the murine JB-1 ascites tumour (i.e. 10 days after 2-5 X 10(6) cells i.p.) large fractions of non-cycling cells with G1 and G2 DNA content (Q1 and Q2 cells) are present, and the fate of these resting cells was investigated after treatment with 1-beta-D-arabinofuranosylcytosine (Ara-C). The experimental work of growth curves, percentage of labelled mitoses curves after continuous labelling with 3H-TdR, and cytophotometric determination of single-cell DNA content in unlabelled tumour cells. Treatment with an i.p. single injection of Ara-C 200 mg/kg in the plateau JB-1 tumour resulted in a significant reduction in the number of tumour cells 1 and 2 days later as compared with untreated controls, while no difference in the number of tumour cells was observed after 3 days. In tumours prelabelled with 3H-TdR 24 hr before Ara-C treatment, a significant decrease in the percentage of labelled mitoses was observed 6-8 hr later followed by a return to the initial value after 12 hr, and a new pronounced fall from 20 hr after Ara-C. The second fall in the percentage of labelled mitoses disappeared when the labelling with 3H-TdR was continued also after Ara-C treatment. Cytophotometry of unlabelled tumour cells prelabelled for 24 hr with 3H-TdR before Ara-C treatment showed 20 hr after Ara-C a pronounced decrease in the fraction of Q1 cells paralleled by an increase in the fraction of unlabelled cells with S DNA content. The results indicate recycling of resting cells first with G2 and later with G1 DNA content, which contribute to the regrowth of the tumours.

  8. TMF/ARA160 Governs the Dynamic Spatial Orientation of the Golgi Apparatus during Sperm Development.

    Science.gov (United States)

    Elkis, Yoav; Bel, Shai; Rahimi, Roni; Lerer-Goldstein, Tali; Levin-Zaidman, Smadar; Babushkin, Tatiana; Shpungin, Sally; Nir, Uri

    2015-01-01

    TMF/ARA160 is known to be a TATA element Modulatory Factor (TMF). It was initially identified as a DNA-binding factor and a coactivator of the Androgen receptor. It was also characterized as a Golgi-associated protein, which is essential for acrosome formation during functional sperm development. However, the molecular roles of TMF in this intricate process have not been revealed. Here, we show that during spermiogenesis, TMF undergoes a dynamic change of localization throughout the Golgi apparatus. Specifically, TMF translocates from the cis-Golgi to the trans-Golgi network and to the emerging vesicles surface, as the round spermatids develop. Notably, lack of TMF led to an abnormal spatial orientation of the Golgi and to the deviation of the trans-Golgi surface away from the nucleus of the developing round spermatids. Concomitantly, pro-acrosomal vesicles derived from the TMF-/- Golgi lacked targeting properties and did not tether to the spermatid nuclear membrane thereby failing to form the acrosome anchoring scaffold, the acroplaxome, around the cell-nucleus. Absence of TMF also perturbed the positioning of microtubules, which normally lie in proximity to the Golgi and are important for maintaining Golgi spatial orientation and dynamics and for chromatoid body formation, which is impaired in TMF-/- spermatids. In-silico evaluation combined with molecular and electron microscopic analyses revealed the presence of a microtubule interacting domain (MIT) in TMF, and confirmed the association of TMF with microtubules in spermatogenic cells. Furthermore, the MIT domain in TMF, along with microtubules integrity, are required for stable association of TMF with the Golgi apparatus. Collectively, we show here for the first time that a Golgi and microtubules associated protein is crucial for maintaining proper Golgi orientation during a cell developmental process.

  9. TMF/ARA160 Governs the Dynamic Spatial Orientation of the Golgi Apparatus during Sperm Development.

    Directory of Open Access Journals (Sweden)

    Yoav Elkis

    Full Text Available TMF/ARA160 is known to be a TATA element Modulatory Factor (TMF. It was initially identified as a DNA-binding factor and a coactivator of the Androgen receptor. It was also characterized as a Golgi-associated protein, which is essential for acrosome formation during functional sperm development. However, the molecular roles of TMF in this intricate process have not been revealed. Here, we show that during spermiogenesis, TMF undergoes a dynamic change of localization throughout the Golgi apparatus. Specifically, TMF translocates from the cis-Golgi to the trans-Golgi network and to the emerging vesicles surface, as the round spermatids develop. Notably, lack of TMF led to an abnormal spatial orientation of the Golgi and to the deviation of the trans-Golgi surface away from the nucleus of the developing round spermatids. Concomitantly, pro-acrosomal vesicles derived from the TMF-/- Golgi lacked targeting properties and did not tether to the spermatid nuclear membrane thereby failing to form the acrosome anchoring scaffold, the acroplaxome, around the cell-nucleus. Absence of TMF also perturbed the positioning of microtubules, which normally lie in proximity to the Golgi and are important for maintaining Golgi spatial orientation and dynamics and for chromatoid body formation, which is impaired in TMF-/- spermatids. In-silico evaluation combined with molecular and electron microscopic analyses revealed the presence of a microtubule interacting domain (MIT in TMF, and confirmed the association of TMF with microtubules in spermatogenic cells. Furthermore, the MIT domain in TMF, along with microtubules integrity, are required for stable association of TMF with the Golgi apparatus. Collectively, we show here for the first time that a Golgi and microtubules associated protein is crucial for maintaining proper Golgi orientation during a cell developmental process.

  10. Evolutionary adaptation of an AraC-like regulatory protein in Citrobacter rodentium and Escherichia species.

    Science.gov (United States)

    Tan, Aimee; Petty, Nicola K; Hocking, Dianna; Bennett-Wood, Vicki; Wakefield, Matthew; Praszkier, Judyta; Tauschek, Marija; Yang, Ji; Robins-Browne, Roy

    2015-04-01

    The evolution of pathogenic bacteria is a multifaceted and complex process, which is strongly influenced by the horizontal acquisition of genetic elements and their subsequent expression in their new hosts. A well-studied example is the RegA regulon of the enteric pathogen Citrobacter rodentium. The RegA regulatory protein is a member of the AraC/XylS superfamily, which coordinates the expression of a gene repertoire that is necessary for full pathogenicity of this murine pathogen. Upon stimulation by an exogenous, gut-associated signal, namely, bicarbonate ions, RegA activates the expression of a series of genes, including virulence factors, such as autotransporters, fimbriae, a dispersin-like protein, and the grlRA operon on the locus of enterocyte effacement pathogenicity island. Interestingly, the genes encoding RegA homologues are distributed across the genus Escherichia, encompassing pathogenic and nonpathogenic subtypes. In this study, we carried out a series of bioinformatic, transcriptional, and functional analyses of the RegA regulons of these bacteria. Our results demonstrated that regA has been horizontally transferred to Escherichia spp. and C. rodentium. Comparative studies of two RegA homologues, namely, those from C. rodentium and E. coli SMS-3-5, a multiresistant environmental strain of E. coli, showed that the two regulators acted similarly in vitro but differed in terms of their abilities to activate the virulence of C. rodentium in vivo, which evidently was due to their differential activation of grlRA. Our data indicate that RegA from C. rodentium has strain-specific adaptations that facilitate infection of its murine host. These findings shed new light on the development of virulence by C. rodentium and on the evolution of virulence-regulatory genes of bacterial pathogens in general.

  11. Purification and immune identification of peanut allergen Ara h2%花生致敏蛋白Arah2提取纯化及免疫分析

    Institute of Scientific and Technical Information of China (English)

    田阳; 饶欢; 陶莎; 薛文通

    2016-01-01

    The specific extraction and purification processes as well as the immune identification of peanut allergen Ara h2 were explored. An effective purification method was established to isolate Ara h2 from whole peanut seed.%对花生致敏蛋白 Ara h2的提取纯化方法进行探究以及对纯化后的花生致敏蛋白 Ara h2的免疫特性进行鉴定,以建立得率较高、操作简单的蛋白纯化方法。

  12. "Vos sos la mujer araña, que atrapa a los hombres en su tela" : La construcción de la identidad feminina en El beso de la Mujer araña, de Manuel Puig.

    OpenAIRE

    Eriksson, Lisa

    2013-01-01

    La novela El beso de la mujer araña del escritor argentino Manuel Puig es una novela que trata dedos presos en una cárcel bonaerense durante la dictadura militar argentina. Esta tesina se centrará enla identidad femenina de Molina. El objetivo de esta tesina es examinar la celebración de lafemineidad de Molina, y su construcción de una identidad femenina. Esta identidad se conectarácon la idea de la identidad femenina como socialmente construida, opuesto a la noción de génerocomo algo innato....

  13. Abrogation of Chk1-mediated S/G2 checkpoint by UCN-01 enhances ara-C-induced cytotoxicity in human colon cancer cells

    Institute of Scientific and Technical Information of China (English)

    Rong-guang SHAO; Chun-Xia CAO; Yves POMMIER

    2004-01-01

    AIM: To investigate whether 7-hydroxystaurosporine (UCN-01) affects cell cycle progression in arabinosylcytosine (ara-C) treated human colon carcinoma HT-29 cells. METHODS: Cytotoxicity, DNA synthesis, cell cycle distribution,protein level, and kinase activity were determined by clonogenic assay, flow cytometry, DNA synthesis assay,immunoblotting, and kinase assays, respectively. RESULTS: UCN-01 abrogated an S/G2-phase checkpoint in HT29 cells treated with ara-C. When UCN-01 was added after treatment with ara-C, the rate of recovery of DNA synthesis was enhanced and colony-forming ability diminished. Thus, premature recovery of DNA synthesis was associated with increased cytotoxicity. Measurements of cyclin A and B protein levels, Cdk2 and Cdc2 kinase activities, Cdc25C phosphorylation, and Chkl kinase activity were consistent with UCN-01-induced abrogation of the S/G2-phase checkpoint in ara-C treated cells. CONCLUSION: The abrogation of the S/G2 checkpoint may be due to inhibition of Chkl kinase by UCN-01. The enhanced cytotoxicity produced when UCN-01 was combined with ara-C suggested a rationale for the use of this drug combination for tumors that might be susceptible to cell cycle checkpoint abrogation.

  14. Using genome-wide CRISPR library screening with library resistant DCK to find new sources of Ara-C drug resistance in AML.

    Science.gov (United States)

    Kurata, Morito; Rathe, Susan K; Bailey, Natashay J; Aumann, Natalie K; Jones, Justine M; Veldhuijzen, G Willemijn; Moriarity, Branden S; Largaespada, David A

    2016-11-03

    Acute myeloid leukemia (AML) can display de novo or acquired resistance to cytosine arabinoside (Ara-C), a primary component of induction chemotherapy. To identify genes capable of independently imposing Ara-C resistance, we applied a genome-wide CRISPR library to human U937 cells and exposed to them to Ara-C. Interestingly, all drug resistant clones contained guide RNAs for DCK. To avoid DCK gene modification, gRNA resistant DCK cDNA was created by the introduction of silent mutations. The CRISPR screening was repeated using the gRNA resistant DCK, and loss of SLC29A was identified as also being capable of conveying Ara-C drug resistance. To determine if loss of Dck results in increased sensitivity to other drugs, we conducted a screen of 446 FDA approved drugs using two Dck-defective BXH-2 derived murine AML cell lines and their Ara-C sensitive parental lines. Both cell lines showed an increase in sensitivity to prednisolone. Guide RNA resistant cDNA rescue was a legitimate strategy and multiple DCK or SLC29A deficient human cell clones were established with one clone becoming prednisolone sensitive. Dck-defective leukemic cells may become prednisolone sensitive indicating prednisolone may be an effective adjuvant therapy in some cases of DCK-negative AML.

  15. Using genome-wide CRISPR library screening with library resistant DCK to find new sources of Ara-C drug resistance in AML

    Science.gov (United States)

    Kurata, Morito; Rathe, Susan K.; Bailey, Natashay J.; Aumann, Natalie K.; Jones, Justine M.; Veldhuijzen, G. Willemijn; Moriarity, Branden S.; Largaespada, David A.

    2016-01-01

    Acute myeloid leukemia (AML) can display de novo or acquired resistance to cytosine arabinoside (Ara-C), a primary component of induction chemotherapy. To identify genes capable of independently imposing Ara-C resistance, we applied a genome-wide CRISPR library to human U937 cells and exposed to them to Ara-C. Interestingly, all drug resistant clones contained guide RNAs for DCK. To avoid DCK gene modification, gRNA resistant DCK cDNA was created by the introduction of silent mutations. The CRISPR screening was repeated using the gRNA resistant DCK, and loss of SLC29A was identified as also being capable of conveying Ara-C drug resistance. To determine if loss of Dck results in increased sensitivity to other drugs, we conducted a screen of 446 FDA approved drugs using two Dck-defective BXH-2 derived murine AML cell lines and their Ara-C sensitive parental lines. Both cell lines showed an increase in sensitivity to prednisolone. Guide RNA resistant cDNA rescue was a legitimate strategy and multiple DCK or SLC29A deficient human cell clones were established with one clone becoming prednisolone sensitive. Dck-defective leukemic cells may become prednisolone sensitive indicating prednisolone may be an effective adjuvant therapy in some cases of DCK-negative AML. PMID:27808171

  16. A juçara vai à escola: aprendizagem entre pessoas, coisas e instituições

    Directory of Open Access Journals (Sweden)

    Marcelo Gules Borges

    2015-12-01

    Full Text Available ResumoEste artigo é resultado de uma etnografia sobre materialidade, educação e aprendizagem realizada no contexto de uma rede local de educadoras ambientais atuantes em escolas públicas de ensino fundamental no litoral norte do Rio Grande do Sul, no Brasil. Tivemos por objetivo seguir as linhas que constituem o protagonismo da palmeira juçara, Euterpe edulis, espécie botânica conhecida popularmente como açaí da Mata Atlântica. Estivemos atentos aos seus usos nas práticas de alimentação e educação ambiental desenvolvidas pelas educadoras da Teia (Teia de Educação Ambiental da Mata Atlântica. Desde nossa perspectiva, a juçara é um outro não humano que participa de uma trama de relações sociais e materiais, entrelaçando pessoas, coisas e instituições e está no centro de um feixe de processos de aprendizagem individuais, sociais e ambientais. Dialogamos com uma noção de aprendizagem pensada a partir dos modos pelos quais experiências educativas são vividas nos termos de uma sintonia fina e dos laços de copertencimento com a dimensão não humana do ambiente, estabelecendo laços produtivos com outros humanos e não humanos. Nesse sentido, descrevemos a convivência entre as educadoras e a juçara como oportunidade para compreender formas de aprendizagem escolar e não escolar em uma comunidade rural no Rio Grande do Sul que, como qualquer outra, é constituída por um mundo mais que humano.

  17. RANKING OF COMPANIES ACCORDING TO THE INDICATORS OF CORPORATE SOCIAL RESPONSIBILITY BASED ON SWARA AND ARAS METHODS

    Directory of Open Access Journals (Sweden)

    Darjan Karabasevic

    2016-05-01

    Full Text Available Corporate sector and companies have recognized the importance of implementation of strategy of corporate social responsibility in order to increase the company's image and responsibility towards society and the communities where they operate. Multinational companies in their everyday activities and operations pay more attention to sustainable models of corporate social responsibility. The focus of this paper is to identify the indicators of corporate social responsibility and to rank companies according to the indicators. Proposed framework for evaluation and ranking is based on the SWARA and the ARAS methods. The usability and efficiency of the proposed framework is shown on an illustrative example.

  18. Konstrukcija i dizajn kontejnerskog vozila za gašenje požara vodom i pjenom

    OpenAIRE

    Župančić, Igor

    2011-01-01

    Kontejnerska vozila predstavljaju novitet među vatrogasnim vozilima. Osnovna karakteristika ovih vozila je u tome da se vatrogasni kontejner postavlja na specijalno podvozje pomoću trajno ugrađenog hidrauličnog krana. Tako se vatrogascima omogućuje efikasna zašita ili gašenje požara sa samo jednim podvozjem i s nekoliko specijalnih kontejnera u vatrogasnoj postrojbi. Broj i vrsta kontejnera koji se mogu «navlačiti « na isto podvozje ograničeni su samo nosivošću podvozja i «navlakača», a odr...

  19. Efecto del enriquecimiento ambiental en un grupo de monos araña (Ateles geoffroyi) en cautiverio

    OpenAIRE

    Alejandra Márquez-Arias; Ana María Santillán-Doherty; Rita Virginia Arenas-Rosas; Marco Polo Gasca-Matías; Jairo Muñoz-Delgado; Javier Villanueva-Valle

    2014-01-01

    Los animales que viven en cautiverio padecen problemas relacionados con el estrés y la falta de estimulación. El enriquecimiento ambiental (EA) proporciona a los animales en esta situación un conjunto de actividades que los alienta a presentar conductas típicas de su especie. El objetivo de este trabajo fue analizar el efecto de un programa de EA en la conducta de una colonia de siete monos araña (Ateles geoffroyi). Se esperaba que la agresión, la coprofilia y las estereotipias fueran menos f...

  20. Gravitational quantization of exoplanet orbits in HD 40307, $\\mu$ Ara, Kepler-26, Kepler-62, and Kepler-275: Comparing predicted orbits

    CERN Document Server

    Geroyannis, Vassilis S

    2015-01-01

    According to the so-called "global polytropic model", hydrostatic equilibrium for a planetary system leads to the Lane-Emden differential equation. Solving this equation in the complex plane, we obtain polytropic spherical shells defined by succesive roots of the real part $\\mathrm{Re}(\\theta)$ of the Lane-Emden function $\\theta$. Such shells provide hosting orbits for the members of a planetary system. Within the framework of the global polytropic model, we study the exoplanet systems HD 40307, $\\mu$ Ara, Kepler-26, Kepler-62, and Kepler-275. We give emphasis on comparing our results with observations, and with orbit predictions derived from the "generalized Titius-Bode relation".

  1. Distribuidor de tránsito «La Araña» (Venezuela

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1965-12-01

    Full Text Available The location of Caracas city, the road system that converges on it, and the rapid growth of the town in a particular direction due to the special topography of the neighborhood, have led to very considerable traffic difficulties. To guide this traffic correctly it has been necessary to build a traffic distributor; called «the spider», at which traffic crosses at four different levels. Obviously, serious technical problems have had to be faced to overcome the low strength of the soil, and its difficult contours. Owing to the large size and extension of the project, the precasting of many special units has been a most important factor. The girders and structural columns are of prestressed concrete, and the foundations, which rest on a variety of piles, are of reinforced concrete. The project has been financed by the Ministry of Public Works, and is now in an advanced state of completion, but the final stage is yet to be done. The total budget for this project is about 600 m. pesetas. The present article describes the total work and gives some brief details on the methods of calculation and execution that were adopted.La situación de Caracas y el sistema vial que concurre en su casco urbano, junto con la expansión de la ciudad en una dirección determinada, provocada por condiciones topográficas locales, han creado un problema de encauzamiento del tránsito que culmina en la necesidad de construir un distribuidor de tráfico, denominado «La Araña», en el que se cruzan las calzadas a cuatro niveles distintos. Como es lógico, se han tenido que afrontar serios problemas técnicos para vencer accidentes locales y terrenos de apoyo de pobre capacidad de sustentación. Dado el gran volumen, variedad y dispersión de obras, la prefabricación de elementos básicos ha sido imperiosa. Las vigas y entramados estructurales son de hormigón pretensado, y los cimientos, con bases apoyadas sobre pilotes de distintos tipos, de hormigón armado ordinario

  2. Enfermedad por arañazo de gato: Presentación de un caso

    Directory of Open Access Journals (Sweden)

    Ileana Alvarez Lam

    2003-12-01

    Full Text Available La enfermedad por arañazo de gato (EAG es un proceso infeccioso benigno, relativamente frecuente en niños y adolescentes producido por Bartonella henselae. La manifestación más frecuente de la enfermedad es la presencia de una lesión de inoculación seguida de linfadenopatía regional con presencia de fiebre u otros síntomas generales o sin estos. Se reporta el caso de un paciente de 13 años de edad que la afección se inició con adenopatía axilar izquierda y cuadro febril de 37,5 °C - 38,5 °C de 3 días de evolución con aparición más tardía de lesión similar en región interescapular, en la cual se planteaba la posibilidad de un proceso linfoproliferativo. Una vez esclarecida la historia clinicoepidemiológica del paciente se realizaron un grupo de exámenes complementarios y se indicó practicar exéresis de la lesión inicial. El estudio histopatológico mostró una linfadenitis crónica con focos pionecrotizantes compatibles con EAG. Se indicó tratamiento con eritromicina oral durante 10 días con resolución total del cuadro adénico.The cat-scratch disease (CSD is a bening infectious process, relatively common in children and adolescents, produced by Bartonella henselae.The most frequent manifestations of the disease is the presence of an innoculation injury followed by regional lymphoadenopathy with fever or other general symptoms, or without them. A case of a 13-year-old male patient, whose affection began with left axillary adenopathy and febrile picture of 37.5°C-38.5°C of 3 days of evolution with the later appearance of a similar injury in the interscapular region, where a lymphoproliferative process may occur, is presented. Once the clinicoepidemiological history of the patient was determined, a series of complementary tests was made and the exeresis of the initial injury was indicated. The histopathological study showed a chronic lymphadenitis with pyonecrotizing focuses compatible with the cat-scratch disease

  3. Ateroskleroz ile il-1α (interleukin-1α -889 c/t gen polimorfizmi arasındaki ilişkinin araştırılması

    Directory of Open Access Journals (Sweden)

    Hasan Başçil

    2014-06-01

    Full Text Available Amaç. Genetik ve çevresel faktörler arasındaki ilişki sonucu ortaya çıkan kardiyovasküler hastalıkların gelişiminde inflamasyon anahtar rol oynamaktadır. İnterlökin-1α (IL-1α nın proinflamasyon regülasyonunda önemli rolü vardır. Bu çalışmada IL-1α-889 C/T polimorfizmi ile ateroskleroz arasındaki ilişkinin araştırılması amaçlanmıştır. Yöntem. Bu çalışma popülasyonu 117 hasta (Grup I ve 117 sağlıklı (Grup II bireyden oluşmuştur. Grup I ve Grup II deki bireylerin genomik DNA’sı izole edildi. IL-1α genotipleri rastgele seçilen örneklerden direkt dizi analizi yapılarak doğrulandı. Bulgular. Grup I 78 erkek ve 39 kadın bireyden, Grup II ise 49 erkek ve 68 kadın bireyden oluşmaktadır. Grup I bireylerin yaş ortalaması 61,06; Grup II bireylerin yaş ortalaması ise 59,47’dir. Grup I’de 43 bireyde, Grup II’de ise 28 bireyde yüksek kolesterol (total kolesterol>200 mg/dL bulundu. Grup I’de 62 bireyde, Grup II’de 51 bireyde sigara içiciliği bulundu. Grup I’de 81 bireyde yüksek tansiyon ( sistolik kan basıncı>140 mmHg ve/veya diyastolik kan basıncı >90 mmHg, 42 bireyde diyabet, Grup II’de 32 bireyde yüksek tansiyon, 41 bireyde diyabet bulundu. Aterosklerotik Grup I’de CC genotip taşıyan bireyler grubun %54,70’ini, CT genotip taşıyan bireyler %35,04’nü ve TT genotip taşıyan bireyler ise %10,25’ini oluşturmaktadır. Grup II’de ise bu oranlar CC genotip taşıyanlarda %59,82; CT genotip taşıyanlarda %30,76 ve TT genotip taşıyanlarda %9,40 olarak saptanmıştır. IL-1α polimorfizmi için C allel frekansı Grup II’de %75,21 ve Grup I’de %72,22’dir. T allel frekansı dağılımı Grup II’de %24,78 ve Grup I’de ise %27,77’dir. Sonuç. Koroner Arter hastalığı olan Grup I ile, kontrol grubu olan Grup II arasında yaş, cinsiyet dağılımı, hipertansiyon ve hiperkolesterolemi açısından istatistiksel olarak anlamlı bir ilişki saptanm

  4. Stres ve İnternet Kullanımı İlişkisi: Türkiye’deki Üniversite Öğrencileri Arasında Bir Alan Araştırması

    Directory of Open Access Journals (Sweden)

    Birol GÜLNAR

    2016-10-01

    Full Text Available Türkiye’de ve dünyada son yıllarda büyük artış gösteren internet kullanımı, yeni iletişim biçimleri ve bunların sosyal ve psikolojik etkilerini gündeme getirmiştir. İnternet kullanımı ile depresyon, yalnızlık ve stres gibi modern toplumun psikolojik sorunları arasındaki ilişkiye dair, gerek kitle iletişim araçlarında gerekse akademik çevrelerde sıkça tartışmalar yaşanmaktadır. Bu araştırma, Türk üniversite öğrencilerinin bir ruh sağlığı göstergesi olarak stres düzeylerini ve internet kullanım tiplerini (iletişim, eğlence ve bilgilenme ve bu değişkenler arasındaki ilişkiyi ortaya koymayı amaçlamaktadır. Tüm Türkiye’ye konumlanmış, yirmi altı (26 üniversitede, toplam iki bin sekiz yüz altı (2806 öğrenci arasında bir alan alaştırması gerçekleştirilmiştir. Tüm Türkiye’deki üniversiteleri ve öğrencileri temsil etmek amacıyla, küme, amaçlı ve olasılıklı örneklem teknikleri kullanılmıştır. Stres, internet kullanım tipleri ve bireysel farklılıklar gibi alt ölçekleri içeren bir soru formu aracılığıyla veri toplanmıştır. Sonuçlar, katılımcıların % 68.5’inin stres altında olduğunu ortaya koymuştur. Ayrıca, katılımcıların günlük ortalama internet kullanım süreleri 118 dakikadır. Öğrenciler interneti daha çok iletişim ve eğlence amaçlı kullanırken, daha az sıklıkta bilgilenme amaçlı kullanmaktadırlar. Buna ek olaral internet kullanım boyutları ile stres pozitif anlamlı ilişkilidir.

  5. Catálogo de las arañas (Araneae de la Comunidad de Madrid

    Directory of Open Access Journals (Sweden)

    Ferrández, M. A.

    2006-05-01

    Full Text Available In this catalogue we seek to compile information about spiders in Comunidad de Madrid in order to evaluate the level of our knowledge in the context of the Iberian fauna as well as to promote studies leading to their conservation. For this catalogue we have compiled information coming from both published and unpublished mentions from university thesis, classified specimens from the collections of the Museo Nacional de Ciencias Naturales and the results of a specific sampling carried out by M. A. Ferrández and H. Fernández de Céspedes in the San Agustín de Guadalix area. The nomenclature is based on Platnick’s world catalogue (2005 as well as on Morano’s work on the ibero-balearic fauna (2005 both available on the net. For each species we include: locality of record, UTM coordinates, original publication name and bibliographical references or museum where the material is kept. Madrid’s fauna of spiders has 261 species at present, belonging to 133 genera from 36 different families, 52% of which are cited from first time (marked with *. The general conclusion is that there is very little data about most species, those that do exist are often outdated and they lack relevant information about biological cycles, ecology, etc. There are still great many species to be recorded in the fauna of Madrid and estimates range between 350 and 400 species in total. It must be pointed that 24 out of 261 total species are endemic species from the Iberian Peninsula, some only collected very recently: Ozyptila umbraculorum (2002, Clubiona aducta, Parachtes teruelis (2005 and Amphiledorus balnearicus (in this paper.

    Con la confección del presente catálogo se pretende recopilar la información faunística disponible sobre las arañas de la Comunidad de Madrid, valorar el grado de conocimiento en el contexto de la fauna ibérica, así como impulsar los estudios encaminados a su conservación. Para su elaboración se han

  6. Combination of interferon alpha with either Ara-C or ATRA in vitro reduces the selective action of interferon against CML CFU-GM.

    Science.gov (United States)

    Marley, S B; Davidson, R J; Goldman, J M; Gordon, M Y

    2000-08-01

    Although interferon (IFN)-alpha has no specific inhibitory effect on the plating efficiency of granulocyte-macrophage colony-forming cells (CFU-GM) from patients with chronic myeloid leukaemia (CML), it does selectively inhibit the replating ability (secondary colony formation) of CML CFU-GM. Thus, amplification of CFU-GM may be a target for IFN-alpha and other agents used in the treatment of CML. Here we examined whether cytarabine (Ara-C) or all-trans retinoic acid (ATRA) exert similar effects and whether they might in combination with IFN-alpha enhance its efficacy. We found that Ara-C preferentially inhibits the formation of CML CFU-GM compared to normal CFU-GM, but this inhibition was not increased by addition of IFN-alpha. When Ara-C was added to cultures containing IFN-alpha, the inhibition of replating by CML progenitors was abrogated. ATRA increased significantly the plating efficiency of normal CFU-GM. The addition of IFN-alpha to ATRA had no effect on CML or normal colony numbers. However, addition of ATRA to cultures containing IFN-alpha reversed the selective inhibition of CML CFU-GM replating seen in cultures containing IFN-alpha alone. In four IFN-alpha/Ara-C experiments, secondary CML patient-derived colonies were examined by fluorescence in situ hybridisation (FISH). All of them were Ph chromosome positive. No significant effects on CFU-GM production were observed when CML primitive haemopoietic progenitor cells were investigated in a delta (delta) assay. Thus we conclude that combining IFN-alpha with Ara-C or ATRA neutralises the effect of IFN-alpha on CML CFU-GM. This observation provides a rationale for treating patients with alternating courses of IFN-alpha and Ara-C or ATRA, rather than giving either of these two agents in combination with IFN-alpha.

  7. Chemical abundance analysis of symbiotic giants - II. AE Ara, BX Mon, KX TrA, and CL Sco

    Science.gov (United States)

    Gałan, Cezary; Mikołajewska, Joanna; Hinkle, Kenneth H.

    2015-02-01

    Knowledge of the elemental abundances of symbiotic giants is essential to address the role of chemical composition in the evolution of symbiotic binaries, to map their parent population, and to trace their mass transfer history. However, there are few symbiotic giants for which the photospheric abundances are fairly well determined. This is the second in a series of papers on chemical composition of symbiotic giants determined from high-resolution (R ˜ 50 000) near-IR spectra. Results are presented for the late-type giant star in the AE Ara, BX Mon, KX TrA, and CL Sco systems. Spectrum synthesis employing standard local thermal equilibrium (LTE) analysis and stellar atmosphere models were used to obtain photospheric abundances of CNO and elements around the iron peak (Sc, Ti, Fe, and Ni). Our analysis resulted in sub-solar metallicities in BX Mon, KX TrA, and CL Sco by [Fe/H] ˜ -0.3 or -0.5 depending on the value of microturbulence. AE Ara shows metallicity closer to solar by ˜ 0.2 dex. The enrichment in 14N isotope found in all these objects indicates that the giants have experienced the first dredge-up. In the case of BX Mon first dredge-up is also confirmed by the low 12C/13C isotopic ratio of ˜ 8.

  8. Reliability of internet sources in geography: Case study of mountains Studena and Žaračka, Serbia

    Directory of Open Access Journals (Sweden)

    Lukić Tamara

    2015-01-01

    Full Text Available Jovan Cvijić said that geography is learned on foot. Besides fieldwork, the modern studies imply the usage of various software packages, as well as the data sources available from the Internet. All the data acquired from the Internet need to be carefully checked, unless they are retrieved from the websites of the established formal institutions (Government, Institutes, and Offices. Very often the Internet information may be in the form of data which should be additionally processed by using mathematical and statistics methods. Possibilities for Internet usage will be shown through presentation of the relief characteristics of the mountains Studena and Žaračka, which belong to Kopaonik system. They make a connection between Mt. Goč and Mt. Stolovi in the north and the massif of Mt. Željin and Mt. Kopaonik in the south. Taking into consideration that Mt. Studena and Mt. Žaračka were not previously studied by geographers, this paper is the contribution to the knowledge on these mountains. [Projekat Ministarstva nauke Republike Srbije, br. 176020

  9. Characterization and effect of clarified araçá (Psidium guineenses Sw. juice on postprandial glycemia in healthy subjects

    Directory of Open Access Journals (Sweden)

    Diully Mata Balisteiro

    2013-02-01

    Full Text Available Brazilian native fruits are excellent sources of bioactive compounds of phenolic nature. Some of these compounds are able to inhibit carbohydrate- metabolizing enzymes (in vitro, α-amylase and α-glucosidase, delaying carbohydrate digestion. This study aimed to evaluate the effect of clarified araçá (Psidium guineenses Sw. juice on postprandial glycemia in humans after consumption of 25 g of available carbohydrates (approximately 50 g of white bread and characterize the phenolic compounds and in vitro antioxidant capacity of araçá juice and pulp. The results showed that the clarified juice had a positive effect on postprandial glycemia reducing the total amount of glucose absorbed, lengthening the time to reach maximum blood glucose concentration, reducing glucose incremental velocity, and decreasing glucose incremental percentage. Both frozen pulp and clarified juice had high amounts of phenolic compounds, antioxidant capacity, and proanthocyanidins, among which oligomers (monomers to tetramers, pentamers, hexamers, heptamers, octamers, nonamers, decamers, and polymers were detected, and they are probably associated with in vivo effects.

  10. Design of an ectoine-responsive AraC mutant and its application in metabolic engineering of ectoine biosynthesis.

    Science.gov (United States)

    Chen, Wei; Zhang, Shan; Jiang, Peixia; Yao, Jun; He, Yongzhi; Chen, Lincai; Gui, Xiwu; Dong, Zhiyang; Tang, Shuang-Yan

    2015-07-01

    Advanced high-throughput screening methods for small molecules may have important applications in the metabolic engineering of the biosynthetic pathways of these molecules. Ectoine is an excellent osmoprotectant that has been widely used in cosmetics. In this study, the Escherichia coli regulatory protein AraC was engineered to recognize ectoine as its non-natural effector and to activate transcription upon ectoine binding. As an endogenous reporter of ectoine, the mutated AraC protein was successfully incorporated into high-throughput screening of ectoine hyper-producing strains. The ectoine biosynthetic cluster from Halomonas elongata was cloned into E. coli. By engineering the rate-limiting enzyme L-2,4-diaminobutyric acid (DABA) aminotransferase (EctB), ectoine production and the specific activity of the EctB mutant were increased. Thus, these results demonstrated the effectiveness of engineering regulatory proteins into sensitive and rapid screening tools for small molecules and highlighted the importance and efficacy of directed evolution strategies applied to the engineering of genetic components for yield improvement in the biosynthesis of small molecules.

  11. A functional single-nucleotide polymorphism in the human cytidine deaminase gene contributing to ara-C sensitivity.

    Science.gov (United States)

    Yue, Lijie; Saikawa, Yutaka; Ota, Kazuhisa; Tanaka, Motohiro; Nishimura, Ryosei; Uehara, Takahiro; Maeba, Hideaki; Ito, Takashi; Sasaki, Takuma; Koizumi, Shoichi

    2003-01-01

    To test the hypothesis that analyses of drug targets for polymorphism will help to establish gene-based information for the treatment of cancer patients, we investigated the functional single-nucleotide polymorphisms in the human cytidine deaminase (HDCA) gene. The cDNAs from 52 leukaemia/lymphoma samples and 169 control blood samples were direct-sequenced and analysed for the polymorphisms. Three different polymorphisms (A79C, G208A and T435C) were identified in the coding region of the HDCA gene and displayed allelic frequencies of 20.1%, 4.3% and 70.1%, respectively. No association with susceptibility to disease was observed. A novel polymorphism, G208A produced an alanine to threonine substitution (A70T) within the conserved catalytic domain. By introduction of the polymorphic HCDA genes into the yeast CDA-null mutants, the HCDA-70T showed 40% and 32% activity of prototype for cytidine and ara-C substrates, respectively (P HCDA-70T was 757 +/- 33 micromol and was significantly lower (P < 0.01) than that of prototype (941 +/- 58 micromol). This study demonstrated a population characterized with 208A genotype for, which potentially leads one more sensitive to ara-C treatment than prototype. Accumulation of polymorphisms in the genes responsible for drug metabolism and determination of polymorphism-induced biological variations could provide the additional therapeutic strategies in risk-stratified protocols for the treatment of childhood malignancies.

  12. Propagação de araçazeiro e goiabeira via miniestaquia de material juvenil

    Directory of Open Access Journals (Sweden)

    Jalille Amim Altoé

    2011-01-01

    Full Text Available Este trabalho foi realizado com o objetivo de avaliar a viabilidade da técnica de miniestaquia no enraizamento de material juvenil de araçazeiro (Psidium guineense e Psidium cattleyanum e goiabeira (Psidium guajava, e no crescimento das mudas após a repicagem e na produtividade das minicepas em sucessivas coletas. Foram instalados três experimentos em delineamento de blocos casualizados utilizando-se três espécies diferentes e quatro repetições. Sessenta e dois dias após o estaqueamento, verificou-se que em P. guineense, P. cattleyanum e P. guajava houve enraizamento de 96%; 92% e 100% respectivamente. Em P. guajava o diâmetro mínimo do caule era de oito milímetros aos 110 dias após a repicagem e em P. guineense e P. cattleyanum, o diâmetro do caule estava próximo a sete milímetros aos 140 dias após a repicagem. Foi verificado aumento do potencial de produção de miniestacas ao longo das sucessivas coletas de brotações. Com base nesses resultados, conclui-se que a técnica da miniestaquia é viável para multiplicação do araçazeiro e da goiabeira.

  13. Cloning of araA Gene Encoding L-Arabinose Isomerase from Marine Geobacillus stearothermophilus Isolated from Tanjung Api, Poso, Indonesia

    Directory of Open Access Journals (Sweden)

    DEWI FITRIANI

    2010-06-01

    Full Text Available L-arabinose isomerase is an enzyme converting D-galactose to D-tagatose. D-tagatose is a potential sweetener-sucrose substitute which has low calorie. This research was to clone and sequence araA gene from marine bacterial strain Geobacillus stearothermophilus isolated from Tanjung Api Poso Indonesia. The amplified araA gene consisted of 1494 bp nucleotides encoding 497 amino acids. DNA alignment analysis showed that the gene had high homology with that of G. stearothermophilus T6. The enzyme had optimum activity at high temperature and alkalin condition.

  14. Canine rabies epidemiology in Araçatuba and neighborhood, Northwestern São Paulo State - Brazil Epidemiologia da raiva canina na região de Araçatuba, Noroeste do Estado de São Paulo - Brasil

    Directory of Open Access Journals (Sweden)

    Luzia Helena Queiroz da Silva

    2004-03-01

    Full Text Available Epidemiological characteristics of canine rabies in the northwest region of São Paulo State (Araçatuba region, Brazil, from 1993 to 1997 are presented. Out of 1,984 dogs, a total of 351 (17.7% were positive for rabies diagnosis; 89% (312/351 of these occurred in urban areas and 85% (266/312 of the urban positive cases were among owned dogs. The mean age of the rabid dogs was 34 months and 61% were male. Aggressive behavior was observed in 77% of rabid dogs, followed by lack of coordination and paralysis (42% and 48% of these dogs were responsible biting people or other animals. Information about vaccination status was obtained from 182 records and 51% of rabid dogs were non-vaccinated. The number of unvaccinated rabid dogs indicates a low vaccination index and this factor added to the high dog/man ratio must have contributed to the canine rabies epizootic observed in the studied area.São apresentadas algumas características epidemiológicas da raiva canina na região de Araçatuba, no período de 1993 a 1997. Dentre 1.984 cães submetidos ao diagnóstico de raiva, 351 foram positivos sendo que 89% dos casos (312/351 ocorreram na zona urbana e destes, 85% (266/312 eram de animais com proprietário. As informações sobre sexo estavam presentes em 83% das fichas e destas 61% eram de machos. A média de idade dos cães positivos foi de 34 meses. A agressividade foi um dos sintomas mais comumente observado (77%, seguido por incoordenação motora e/ou paralisia (42% e 48% dos cães positivos haviam agredido pessoas ou outros animais. Das 182 fichas epidemiológicas que possuíam dados de vacinação, 51% (92/182 dos cães não eram vacinados. Aponta-se como possíveis razões para o aparecimento da epidemia no município de Araçatuba a baixa cobertura vacinal demonstrada pelo índice de cães não vacinados que adquiriram a doença aliado à elevada relação cão/homem (1:3,5 revelada em estudo anterior.

  15. Caracterização fisico-química e sensorial de geleia de mamão com araçá-boi Physicochemical and sensorial characterization of papaya and araça boi jelly

    Directory of Open Access Journals (Sweden)

    Eliseth de Souza Viana

    2012-12-01

    Full Text Available Foram elaboradas quatro formulações de geleia com as seguintes proporções de mamão (Carica papaya (M e araçá-boi (Eugenia stipitata (AB: F1 (70% M: 30% AB, F2 (60% M: 40% AB, F3 (40%M : 60% AB e F4 (30% M : 70% AB. Todas as formulações apresentaram proporção final de polpa e açúcar de 1:1, com 0,5% de pectina e teor de 65% de sólidos solúveis. As geleias foram analisadas quanto às características físico-químicas e sensoriais (teste de aceitação e preferência. O teste de aceitação foi realizado por 50 consumidores, por meio de escala hedônica de 7 pontos, avaliando-se os atributos: aparência, cor, aroma, sabor e textura. A acidez titulável variou entre 0,77 e 1,72 g de ácido cítrico100 g-1, estando dentro da faixa de acidez determinada para diferentes geleias de frutas. O teor de açúcares redutores foi mais elevado na formulação F4. As formulações apresentaram índice de aceitação acima de 90% para os atributos aparência, cor, aroma e textura. As formulações F1 e F2, com menores concentrações de araçá-boi, apresentaram maior aceitação para os atributos sensoriais cor e sabor. Entretanto, a formulação F1 apresentou elevada intenção de compra e foi considerada pelo mapa de preferência interno a mais aceita para todos os atributos avaliados, sendo, portanto, a mais adequada para a industrialização e consumo.Four formulations of jelly were prepared with the following proportions of papaya (Carica papaya (P and araçá-boi (Eugenia stipitata (AB: F1 (70% P: 30% AB, F2 (60% P: 40% AB, F3 (40% P: 60% AB and F4 (30% P: 70% AB. Each formulation showed a final proportion of pulp and sugar of 1:1, 0.5% of pectin and 65 ºBrix of soluble solids content. The jellies were analyzed by the physicochemical and sensorial characteristics (acceptance and preference. The sensorial acceptance was performed by 50 consumers using a 7-point hedonic scale, evaluating the following attributes: general appearance, color

  16. Conteúdo polifenólico e atividade antioxidante dos frutos da palmeira Juçara (Euterpe edulis Martius Polyphenolic content and antioxidant capacity of fruits of Juçara (Euterpe edulis Martius palm tree

    Directory of Open Access Journals (Sweden)

    C.P Lima

    2012-01-01

    Full Text Available O conteúdo polifenólico e a atividade antioxidante do extrato do fruto de Euterpe edulis Martius foram avaliados. Esta espécie é uma palmeira conhecida como Juçara, nativa da Mata Atlântica e utilizada para a extração de palmito. O processo de extração do palmito acarreta a morte da planta, uma vez que esta apresenta estipe único. A elevada demanda ocasionou a escassez deste recurso natural. Muitas espécies da Mata Atlântica podem ser utilizadas pelo manejo sustentável para a preservação e exploração econômica pelas comunidades locais. O fruto da palmeira Juçara pode ser uma das alternativas de manejo sustentável dos recursos naturais da Mata Atlântica. A capacidade antioxidante do fruto pode ser utilizada como justificativa para a aplicação como alimento nutricional. O conteúdo polifenólico do fruto foi determinado pelo método de Folin-Ciocalteau e os resultados obtidos foram: 10,31 ± 0,25%, 12,42 ± 0,89%, 12,75 ± 0,94%, para o extrato bruto, fração acetato de etila e fração remanescente, respectivamente. A atividade antioxidante foi determinada pelos métodos de redução do complexo fosfomolibdênico e DPPH. O extrato bruto e as frações acetato de etila e remanescente apresentaram atividade antioxidante, sendo que as duas últimas demonstraram maior atividade indicando que o conteúdo polifenólico pode ser responsável por esta atividade.The polyphenolic content and the antioxidant activity of Euterpe edulis Martius fruit extract were assessed. This species is a Palm tree known as Juçara, native to Atlantic Forest and used for palm heart extraction. The process of palm heart extraction leads to the death of the plant since the latter has one single stem. The high demand has resulted in the depletion of this natural resource. Many species from Atlantic Forest can be used by means of sustainable management for the preservation and economic exploration by local communities. The fruit of Juçara palm can be

  17. Minimal processing of juçara´s heart palm packed in brine acidifiedProcessamento mínimo de palmito juçara embalado em salmoura acidificada

    Directory of Open Access Journals (Sweden)

    Paula Fernanda Souza Aoki

    2012-04-01

    Full Text Available The juçara’s palm (Euterpe edulis, native to the Atlantic Forest is one of the palms most exploited for the removal of heart palm and the tree was removed in large areas. The aim of this study was to examine the feasibility of the methodology of "minimally processed" in juçara’s palm. The raw material was obtained by COOPERÁGUA, Sete Barras (SP through a Sustainable Management Plan culminating in a permit issued by IBAMA, Forestry Foundation and DPRN. The process began with the withdrawal of external sheaths and cut, with subsequent immersion in a solution of sodium metabisulphite (Na2S2O5– 200 ppm, sanitize with a chlorine solution and soak in brine acidified to wait until the filling. The cuttings were placed in polyethylene bags containing acidified solution at concentrations A 0.225%, B 0.375%, C 0.6%, D 0.825% determined by titration curve. The staining became clearer in treatments C and D, due to more acidity, resulting in higher inactivation of enzymes. Even with these positive results, were concluded that minimal processing of juçara is not effective due to the blackout, preventing its commercialization. To stop it requires the bleaching step, which does not characterize it as minimally processed.A palmeira juçara (Euterpe edulis, nativa da Mata Atlântica, é uma das mais exploradas para retirada do palmito; tratando-se de produto importante no bioma, a palmeira foi eliminada em vastas áreas. O objetivo deste trabalho foi analisar a viabilidade da metodologia “minimamente processados” para o palmito de juçara. A matéria-prima foi obtida através de Plano de Manejo Sustentável licenciado pelo IBAMA, Fundação Florestal e DPRN. O processamento iniciou-se com a retirada das bainhas externas e corte do palmito, com posteriores imersão em solução de metabissulfito de sódio (Na2S2O5 na concentração 200 ppm, higienização com solução clorada e imersão em salmoura acidificada de espera até o envase. Os toletes

  18. DETERMINAÇÃO DO VALOR D10 PARA ESCHERICHIA COLI EM POLPA DE JUÇARA IRRADIADA

    Directory of Open Access Journals (Sweden)

    Paula Porrelli Moreira da SILVA

    2011-04-01

    Full Text Available A aplicação de tratamentos não térmicos tem se mostrado efi ciente na inibição de bactérias como Escherichia coli. Sua presença em alimentos processados é considerada uma indicação útil de contaminação pós sanitização ou pós processo (principalmente no caso da pasteurização, evidenciando práticas de higiene e sanitização inadequados para o processamento de alimentos. A irradiaçãoéum métodoefi cientede conservação de alimentos, por reduzir o número de micro-organismos patogênicos e deteriorantes, sem que as características sensoriais e nutricionais do alimento sejam alteradas signifi cativamente. A juçara (Euterpe edulis é palmeira nativa da Mata Atlântica, que além do palmito, produz frutos comestí- veis similares ao açaí, possuindo interesse econômico. Os objetivos desta pesquisa foram determinar o valor D10 de Escherichia coli inoculada em polpa de juçara (E. edulis irradiada, recomendando-se uma dose de radiação para ser aplicada a esse alimento a fi m de torná-lo seguro frente a este micro-organismo. O valor D10 foi calculado a partir da curva de sobreviventes dessa bactéria em polpa de ju- çara, após ter sido exposta às doses de 0kGy (controle; 0,5kGy; 1,0kGy; 1,5kGy e 2,0kGy. O valor D10 obtido foi 0,404kGy, sendo que a dose de radiação recomendada para reduzir sete ciclos logarítmicos de E. coli, a fi m de garantir a segurança higiênico-sanitária do produto, foi de 2,83kGy.

  19. Fatal proventricular dilatation disease in captive native psittacines in Brazil.

    Science.gov (United States)

    Donatti, Rogério Venâncio; Resende, Maurício; Ferreira, Francisco Carlos Júnior; Marques, Marcus Vinícius Romero; Ecco, Roselene; Shivaprasad, H L; de Resende, José Sérgio; Martins, Nelson Rodrigo da Silva

    2014-03-01

    An outbreak of proventricular dilatation disease (PDD), a fatal inflammatory disease of psittacines (Aves: Psittaciformes), is described in native Brazilian psittacines. Twenty captive psittacines that died of suspected PDD were necropsied and 10 were submitted to histopathology, reverse transcriptase PCR (RT-PCR), and immunohistochemistry (IHC) for avian bornavirus (ABV). Examined species were one pileated parrot (Pionopsitta pileata), three vinaceous-breasted parrots (Amazona vinacea), two blue-winged macaws (Primolius maracana), one scarlet macaw (Ara macao), one chestnut-fronted macaw (Ara severa), one scaly-headed parrot (Pionus maximiliani), and one red-browed Amazon parrot (Amazona rhodocorytha). Gross examination and histopathology revealed typical PDD lesions in all birds. The presence of ABV was confirmed in four psittacines including one red-browed Amazon parrot, one blue-winged macaw, one scarlet macaw, and one chestnut-fronted macaw. In the red-browed Amazon parrot and in one blue-winged macaw, IHC demonstrated ABV antigens in the nucleus and cytoplasm of cells in various organs. This is the first description of PDD by ABV in Brazilian psittacines and indicates the necessity for adopting a strategic control plan for reducing its impact in native birds.

  20. Effect of Maillard reaction on biochemical properties of peanut 7S globulin (Ara h 1) and its interaction with a human colon cancer cell line (Caco-2)

    NARCIS (Netherlands)

    Teodorowicz, M.; Fiedorowicz, E.; Kostyra, H.; Wichers, H.J.; Kostyra, E.

    2013-01-01

    Purpose The purpose of this study was to determine the influence of Maillard reaction (MR, glycation) on biochemical and biological properties of the major peanut allergen Ara h 1. Methods Three different time/temperature conditions of treatment were applied (37, 60, and 145 °C). The extent of MR wa

  1. Determination of pepsin-susceptible and pepsin-resistant epitopes in native and heat-treated peanut allergen Ara h 1

    NARCIS (Netherlands)

    Boxtel, E.L. van; Koppelman, S.J.; Broek, L.A.M. van den; Gruppen, H.

    2008-01-01

    This study was aimed at the determination of the pepsin-susceptible and pepsin-resistant epitopes in native and heat-treated Ara h 1, a major allergen from peanuts. Both the oligomeric structure and the trimeric structure of the allergen were investigated. Under the in vitro conditions applied, olig

  2. The major peanut allergen Ara h 1 and its cleaved-off N-terminal peptide; possible implications for peanut allergen detection

    NARCIS (Netherlands)

    Wichers, H.J.; Beijer, de T.; Savelkoul, H.F.J.; Amerongen, van A.

    2004-01-01

    Ara h 1 was purified from raw peanuts (Arachis hypogaea L.) in the presence or absence of protease inhibitors. N-Terminal amino acid sequences were determined after western blotting. Both purification procedures proved to be very consistent and resulted in identical chromatographic and electrophoret

  3. RECOVERY OF MURINE MYELOPOIESIS AFTER CYTOSTATIC REDUCTION BY ARA-C - EFFECT OF BACITRACIN-INDUCED CHANGES IN THE INTESTINAL MICROFLORA AND INFLUENCE OF TIMING

    NARCIS (Netherlands)

    DAENEN, S; GORIS, H; DEBOER, F; HALIE, MR; VANDERWAAIJ, D

    1991-01-01

    The influence of intestinal flora modulation by oral bacitracin on the recovery of myelopoiesis after Ara-C was studied in C3H/Law mice. Bacitracin resulted in a 3-5 log increase of Gram-negative bacteria and a 10-fold increase of the intestinal endotoxin concentration. Initiation of bacitracin befo

  4. Effect of Maillard reaction on biochemical properties of peanut 7S globulin (Ara h 1) and its interaction with a human colon cancer cell line (Caco-2)

    NARCIS (Netherlands)

    Teodorowicz, M.; Fiedorowicz, E.; Kostyra, H.; Wichers, H.J.; Kostyra, E.

    2013-01-01

    Purpose The purpose of this study was to determine the influence of Maillard reaction (MR, glycation) on biochemical and biological properties of the major peanut allergen Ara h 1. Methods Three different time/temperature conditions of treatment were applied (37, 60, and 145 °C). The extent of MR wa

  5. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira

    Directory of Open Access Journals (Sweden)

    Maicon Bisognin

    2013-02-01

    Full Text Available O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei, amoreira‑preta (Rubus spp., araçazeiro (Psidium cattleyanum e pitangueira (Eugenia uniflora. O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC, umidade relativa (70±10% e fotófase (12 horas, para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o ciclo biológico em todos hospedeiros estudados, embora os frutos nativos (pitanga e araçá ofereçam melhores condições para seu desenvolvimento. Os parâmetros biológicos determinados para as fases imaturas foram semelhantes nos quatro hospedeiros. Insetos criados em pitanga e araçá apresentam, na fase adulta, maior período de oviposição, fecundidade e longevidade de fêmeas, em comparação aos criados em mirtilo e amora‑preta. O ritmo diário de oviposição é mais prolongado e uniforme nos insetos criados em araçá e pitanga, o que mostra que A. fraterculus está mais bem adaptada a estas frutas, nativas da região Sul.

  6. The transcriptional activators AraR and XlnR from Aspergillus niger regulate expression of pentose catabolic and pentose phosphate pathway genes

    NARCIS (Netherlands)

    Battaglia, Evy; Zhou, M.; de Vries, Ronald P; van den Brink, J.

    2014-01-01

    The pentose catabolic pathway (PCP) and the pentose phosphate pathway (PPP) are required for the conversion of pentose sugars in fungi and are linked via d-xylulose-5-phosphate. Previously, it was shown that the PCP is regulated by the transcriptional activators XlnR and AraR in Aspergillus niger. H

  7. Lactococcal aminotransferases AraT and BcaT are key enzymes for the formation of aroma compounds from amino acids in cheese

    NARCIS (Netherlands)

    Rijnen, L.; Yvon, M.; Kranenburg, van R.; Courtin, P.; Verheul, A.; Chambellon, E.; Smit, G.

    2003-01-01

    Amino acid catabolism plays a major role in cheese aroma development. Previously, we showed that the lactococcal aminotransferases AraT and BcaT initiate the conversion of aromatic amino acids, branched-chain amino acids and methionine to aroma compounds. In this study, we evaluated the importance o

  8. IgE versus IgG4 epitopes of the peanut allergen Ara h 1 in patients with severe allergy

    DEFF Research Database (Denmark)

    Bøgh, Katrine Lindholm; Nielsen, H.; Eiwegger, T.

    2014-01-01

    , suffering from severe allergic reaction to peanuts, including anaphylaxis, were used to analyse the IgE and IgG4 epitope recognition patterns of the major peanut allergen Ara h 1. Epitope identification was conducted by competitive immuno-screening of a phage-displayed random heptamer peptide library...

  9. Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)

    Science.gov (United States)

    Yin, Congfei; Karim, Sazzad; Zhang, Hongsheng; Aronsson, Henrik

    2017-01-01

    Arabidopsis small GTPase RabF1 (ARA6) functions in endosomal vesicle transport and may play a crucial role in recycling and degradation of molecules, thus involved in stress responses. Here we have reported that complementary overexpression lines RabF1OE (overexpression), GTPase mutants RabF1Q93L (constitutively active) and RabF1S47N (dominant negative) lines show longer root growth than wild-type, rabF1 knockout and N-myristoylation deletion (Δ1−29, N-terminus) complementary overexpression mutant plants under salt induced stress, which indicates that N-myristoylation of RabF1 is indispensable for salt tolerance. Moreover, RabF1 is highly expressed during senescence and RabF1OE lines were more tolerant of dark-induced senescence (DIS) than wild-type and rabF1. PMID:28157156

  10. La propuesta de un nuevo concepto de lo humano en El beso de la mujer araña

    Directory of Open Access Journals (Sweden)

    Jorge Ruiz Luna

    1999-02-01

    Full Text Available Este trabajo pretende demostrar que en la novela El beso de la mujer araña (1976, del argentino Manuel Puig, se muestra simbólicamente la desigual relación entre la mujer y el hombre en la androcéntrica sociedad latinoamericana contemporánea, y cómo esa relación de dominio que deshumaniza a ambos elementos, puede llegar a convertirse en una relación de igualdad. Los personajes centrales de la novela, Luis Molina y Valentín Arregui, prueban que el camino para esa nueva humanidad debe pasar por una educación liberadora y una práctica consecuente.

  11. Perceptions on hospitality when visiting secluded communities of guaranis, caiçaras e quilombolas in Paraty region

    Directory of Open Access Journals (Sweden)

    Luis Alberto Beares

    2008-10-01

    Full Text Available Tourism in secluded communities puts different cultures in contact with each other and must be handled carefully not to cause environmental damage as well as cultural loss which might jeopardize the local development and create hostile relationships. The proposal of in sito tourism, considering the local memory and patrimony as a hospitality potential, was observed during technical visitations to three communities located in the Paraty region and surroundings: Guarani, Caiçara (fishermen and Quilombola(African slaves descendants. Through field work involving visitations to communities and interviews with locals, information regarding cultural differences and the importance of the land occupation in the history of each of the communities was assessed. The common link in the history of these peoples is the struggle for the right of land possession. During visits when people shared their territory various forms of hospitality in each community were verified, issued from different cultures and cultural values.

  12. Marine shell hoard from the Late Neolithic site of Čepin-Ovčara (Slavonia, Croatia

    Directory of Open Access Journals (Sweden)

    Boban Tripković

    2016-12-01

    Full Text Available The focus of this paper is the ornament hoard from the Sopot culture site of Čepin-Ovčara in eastern Slavonia (the Republic of Croatia. The hoard contained pendants and beads made of shells of marine clam Spondylus gaederopus and scaphopod Antalis vulgaris. The paper analyses the context and use wear of the objects in the hoard. The results form a basis for: the reconstruction of the role of some of the items and the ways in which they were worn; the premise that the dynamics and mechanisms of acquisition of ornaments made of the two Mediterranean mollusc species could have differed; and the identification of a cross-cultural pattern of deposition of ornament hoards.

  13. Genetik Epidemiyolojide Kullanılan Bazı Araştırma Tasarımları

    Directory of Open Access Journals (Sweden)

    Esra PAMUKÇU

    2012-01-01

    Full Text Available Genetik epidemiyoloji, insan toplumunda ve onların aileden miras kalan özelliklerinde, hastalığa yol açan gen ve çevresel faktörlerin etkileşimini inceleyen bir bilim dalıdır. Son yıllarda kullanılmaya başlanılan tüm-genom çaplı araştırmalar, geniş hasta ve kontrol gruplarının, kısa sürede ve yüksek çözünürlükle analiz edilmesini mümkün kılarak genetik çalışmalara ivme kazandırmış, kalıtsal hastalıklara genetik bakışı farklılaştırmış ve yeni kavramlar yüklemiştir. Böylece genetiğin sadece basit, yüzeysel ve nadir karakteristiklerin kalıtımı ile ilgilendiği düşüncesi, günümüzde hayatın temel şekillenme süresinde genlerin oynadığı rolün anlaşılması şekline dönüşmüştür. Türkiye'de halk sağlığı çalışmalarında epidemiyolojik yöntemler sık olarak kullanılırken, genetik faktörlerin halk sağlığı üzerindeki olası etkilerinin incelenmesine duyulan ihtiyaç nedeniyle, bu alanda çalışan klinisyenlerin, genetik epidemiyoloji konusundaki ilgisinin arttığı gözlemlenmektedir. Epidemiyoloji, genellikle toplum tabanlı örneklemeyi kullanarak akraba olmayan kişiler üzerinde çalışırken; genetik epidemiyoloji, hastalıkla alakalı bir aile öyküsüne sahip, genetik olarak yüksek risk grubunda ve akraba olan belirli kişiler üzerine yoğunlaşmaktadır. Bu nedenle genetik çalışmalarda kullanılan çalışma tasarımları da epidemiyolojide kullanılan genel tasarımlardan belirli şekillerde farklılıklar gösterebilmektedir. Bu derlemenin amacı, epidemiyolojik araştırmalarda kullanılan olgu kontrol ve kohort araştırma tasarımlarının, hastalıkların genetik yapı ve çevre ile olan ilişkisini incelerken nasıl kullanıldığı, bu tür araştırmaların planlama ve analizinde dikkat edilmesi gereken konuları açıklamak amacıyla literatürde var olan bazı makalelerin ve kitapların incelenmesi ve elde edilen bilgilerin özetlenmesidir.

  14. Caracterización de las Propiedades Dinámicas de la Seda de Araña

    OpenAIRE

    Alencastre Miranda, Jorge

    2016-01-01

    El término Biomimética se ha hecho común en los medios científicos, se refiere al trabajo de diversos científicos (ingenieros, químicos, físicos, biólogos, etc.) que tratan de copiar los procesos biológicos y aplicarlos en distintas áreas tecnológicas y científicas. En este campo científico, uno de los productos naturales que llama más la atención es la telaraña. Numerosos científicos en todo el mundo tratan de copiar las propiedades de la seda que produce la araña, y lo más interesante es qu...

  15. Irradiated Interfaces in the Ara OB1, Carina, Eagle Nebula, and Cyg OB2 Massive Star Formation Regions

    CERN Document Server

    Hartigan, P; Cleeves, L I

    2013-01-01

    Regions of massive star formation offer some of the best and most easily-observed examples of radiation hydrodynamics. Boundaries where fully-ionized H II regions transition to neutral/molecular photodissociation regions (PDRs) are of particular interest because marked temperature and density contrasts across the boundaries lead to evaporative flows and fluid dynamical instabilities that can evolve into spectacular pillar-like structures. When detached from their parent clouds, pillars become ionized globules that often harbor one or more young stars. H2 molecules at the interface between a PDR and an H II region absorb ultraviolet light from massive stars, and the resulting fluoresced infrared emission lines are an ideal way to trace this boundary independent of obscuring dust. This paper presents H2 images of four regions of massive star formation that illustrate different types of PDR boundaries. The Ara OB1 star formation region contains a striking long wall that has several wavy structures which are pres...

  16. Disiplinler Arası Bir Disiplin Olarak Türkçe Eğitimi Turkish Education as an Interdisciplinary Discipline

    Directory of Open Access Journals (Sweden)

    Namık Kemal ŞAHBAZ

    2012-09-01

    , grammarteaching, first reading and writing teaching, children’s literature,training Turkish teachers and historical development of Turkisheducation. Disiplinler arasılık, günümüz sosyal bilimleri için bir gerekliliktir. Çoğu kez, herhangi bir soruna bir tek disiplinin çerçevesinden bakmak yetersiz olabilir. Disiplinler arası araştırmalar, bilgiye farklı bakış açıları sunar. Bu çalışmada görece yeni bir bilimsel disiplin olan Türkçe eğitiminin disiplinler arası niteliği gerek kuramsal gerek de uygulama boyutuyla betimlenmeye çalışılmıştır. Bu amaçla öncelikle Türkçe eğitiminin araştırma alanları (Okuma eğitimi, konuşma eğitimi, yazma eğitimi, dinleme eğitimi, dil bilgisi öğretimi, ilk okuma ve yazma öğretimi, çocuk edebiyatı, Türkçe öğretmeni yetiştirme, Türkçe eğitimi tarihi açıklanmış, daha sonra Türkçe eğitiminin disiplinler arası araştırmalara neden gereksinim duyduğu tartışılmıştır. Çalışmada, araştırılması amaçlanan olgu ve olgular hakkında bilgi içeren yazılı materyallerin analizini kapsayan doküman inceleme yöntemi kullanılmıştır. Türkçe eğitimi ile eğitim bilimleri, dilbilim, yazınbilim, sosyoloji, psikoloji, tarih ve tıp disiplinleri arasındaki disiplinler arası ilişkiler irdelenmiştir. Bilimsel bir disiplin olarak ele alınmasa da kişisel gelişim konularıyla (ikna, etkili iletişim, yapay zekâ, duygusal zekâ, NLP Türkçe eğitimi arasındaki etkileşim, bu çalışmada açıklanmaya çalışılmıştır. Bu çalışma, Türkçe eğitimi alanında yapılacak yeni araştırmalara farklı bir boyut ve bir bakış açısı kazandıracak olması nedeniyle önemlidir. Araştırmanın sonuçları itibariyle hâlihazırda Türkçe eğitimine yönelik disiplinler arası çalışmalar yapılmaktadır. Ancak okuma eğitimi, konuşma eğitimi, yazma eğitimi, dinleme eğitimi, dil bilgisi öğretimi, ilkokuma ve yazma öğretimi, çocuk edebiyatı, Türkçe

  17. Influencia de la radiación ultravioleta en el comportamiento mecánico y en la microestructura de las fibras de seda de araña

    OpenAIRE

    Perea Abarca, Gracia Belén

    2010-01-01

    Resumen Las fibras de seda de araña constituyen un material enormemente atractivo. Su elevada resistencia y deformabilidad lo convierten en el material con mayor trabajo de fractura de todos los conocidos. Esta singular propiedad ha justificado que se hayan dedicado importantes esfuerzos a intentar producir fibras inspiradas en la seda de araña, ya que las particularidades de las arañas hacen inviable la recolección del material natural en cantidad industrial, tal y como se realiza con el gus...

  18. The southern Araçuaí belt and the Dom Silvério Group: geologic architecture and tectonic significance

    Directory of Open Access Journals (Sweden)

    Guilherme G. Peres

    2004-12-01

    Full Text Available The Araçuaí belt corresponds to the external portion of the western half of the Araçuaí-West Congo Neopro-terozoic orogen. TheAraçuaí belt fringes the São Francisco craton to east and is separated from the crystalline core of the orogen by the Abre Campo geophysical discontinuity. The southern Araçuaí belt involves four major lithologic units: the Archean and Paleoproterozoic gneisses of the Mantiqueira Complex, the Pedra Dourada Charnockite, the Paleoproterozoic Borrachudos Granitoid, and the metavolcanosedimentary rocks of the Dom Silvério Group. The Dom Silvério Group occurs in a NNE-SSW striking belt and consists of a thick package of metapelitic rocks with intercalations of quartzites, amphibolites, meta-ultramafics, banded iron formations, gondites and marbles. All units of the southern Araçuaí belt underwent four syn-metamorphic phases of deformation in the course of the Brasiliano event. The first phase, synchronous to a regional amphibolite facies metamorphism, was associated to a general tectonic transport towards north along the left-lateral Dom Silvério shear zone and its low angle segment. The second and third phases represent progressive stages of a west directed shortening, which led to the development of local thrusts and pervasive folds in several scales. The fourth phase is extensional and reflects the collapse of the orogen.A Faixa Araçuaí corresponde à porção ocidental externa do orógeno neoproterozóico Araçuaí-Congo Ocidental. Margeia a borda leste do Cráton do São Francisco e é separada do núcleo cristalino do orógeno pela descontinuidade geofísica de Abre Campo. A porção meridional da Faixa Araçuaí envolve quatro unidades litológicas principais: os ortognaisses arqueanos e paleoproterozóicos do Complexo Mantiqueira, os charnoquitos Pedra Dourada, os granitóides paleoproterozóicos da Suíte Borrachudos e as rochas metavulcanossedimentares do Grupo Dom Silvério. O Grupo Dom Silv

  19. The Ediacaran Rio Doce magmatic arc revisited (Araçuaí-Ribeira orogenic system, SE Brazil)

    Science.gov (United States)

    Tedeschi, Mahyra; Novo, Tiago; Pedrosa-Soares, Antônio; Dussin, Ivo; Tassinari, Colombo; Silva, Luiz Carlos; Gonçalves, Leonardo; Alkmim, Fernando; Lana, Cristiano; Figueiredo, Célia; Dantas, Elton; Medeiros, Sílvia; De Campos, Cristina; Corrales, Felipe; Heilbron, Mônica

    2016-07-01

    Described half a century ago, the Galiléia tonalite represents a milestone in the discovery of plate margin magmatic arcs in the Araçuaí-Ribeira orogenic system (southeastern Brazil). In the 1990's, analytical studies on the Galiléia tonalite finally revealed the existence of a Late Neoproterozoic calc-alkaline magmatic arc in the Araçuaí orogen. Meanwhile, the name Rio Doce magmatic arc was applied to calc-alkaline plutons found in the Araçuaí-Ribeira boundary. After those pioneer studies, the calc-alkaline plutons showing a pre-collisional volcanic arc signature and age between 630 Ma and 585 Ma have been grouped in the G1 supersuite, corresponding to the Rio Doce arc infrastructure. Here, we revisit the Rio Doce arc with our solid field knowledge of the region and a robust analytical database (277 lithochemical analyses, and 47 U-Pb, 53 Sm-Nd, 25 87Sr/86Sr and 7 Lu-Hf datasets). The G1 supersuite consists of regionally deformed, tonalitic to granodioritic batholiths and stocks, generally rich in melanocratic to mesocratic enclaves and minor gabbroic to dioritic plutons. Gabbroic to dioritic enclaves show evidence of magma mixing processes. The lithochemical and isotopic signatures clearly reveal a volcanic arc formed on a continental margin setting. Melts from a Rhyacian basement form the bulk of the magma produced, whilst gabbroic plutons and enclaves record involvement of mantle magmas in the arc development. Tonalitic stocks (U-Pb age: 618-575 Ma, εNd(t): -5.7 to -7.8, Nd TDM ages: 1.28-1.68 Ga, 87Sr/86Sr(t): 0.7059-0.7118, and εHf(t): -5.2 to -11.7) form the northernmost segment of the Rio Doce arc, which dies out in the ensialic sector of the Araçuaí orogen. At arc eastern and central zones, several batholiths (e.g., Alto Capim, Baixo Guandu, Galiléia, Muniz Freire, São Vítor) record a long-lasting magmatic history (632-580 Ma; εNd(t): -5.6 to -13.3; Nd TDM age: 1.35-1.80 Ga; 87Sr/86Sr(t): 0.7091-0.7123). At arc western border, the magmatic

  20. Evaluación clínica de la nefroprotección de los bloqueadores de anglotensina II (ARA II

    Directory of Open Access Journals (Sweden)

    Mariana Blanco-Uhienhaut

    2003-06-01

    Full Text Available Actualmente, los antagonistas del receptor de angiotensina II (ARA II representan el grupo de medicamentos más novedosos para el manejo de la hipertensión arterial y una posible alternativa a los inhibidores de la enzima convertidora de angiotensina (IECAS para el tratamiento de los pacientes diabéticos tipo 2. Por lo relevante y polémico del tema, la presente constituye una revisión de diversos ensayos clínicos, con el fin de identificar algún beneficio nefroprotector en los pacientes diabéticos tipo 2 con o sin HTA. Se exponen y analizan los resultados obtenidos en los estudios referidos como REENAL, IDNT, IRMA II y MARVAL. En conclusión, el efecto nefroprotector atribuido a los ARA II se refiere específicamente a los cambios en la morbilidad de la nefropatía y a "enlentecer", en algunos casos, la progresión de la enfermedad en los pacientes diabéticos; pero no se cuenta con elementos para generalizar esa cualidad a todos los fármacos del grupo. Sin embargo, sí podrían estar indicados como alternativa terapéutica a los IECAs ante problemas de tolerabilidad. Con los datos disponibles no es apropiado esperar los mismos efectos nefroprotectores de los IECAS, debido a que ningún ARA II ha disminuido la mortalidad de los pacientes con nefropatía diabética tipo 2 e HTA.The angiotensin receptor antagonists (ARA II represent the latest group of drugs in the treatment of hypertension and an alternative against angiotensin-converting-enzyme (ACE inhibitors in patients with type 2 diabetes. Because its relevance and polemic role, we reviewed severas clinical trials to identify any renoprotective effect in patients with type 2 diabetes with or without hypertension. We analized the results of REENAL, IDNT, IRMA II and MARVAL trials. In conclusion, the renoprotective effect of the ARA II drugs is related especifically to changes in nephropathy morbility and to a delay in the progression of nephropathy in diabetic patients. We do not have

  1. Serum biochemical profile of laying hens in the region of Araçatuba, SPPerfil bioquímico das galinhas poedeiras na região de Araçatuba-SP.

    Directory of Open Access Journals (Sweden)

    Paulo César Ciarlini

    2011-10-01

    Full Text Available The establishment of reference values is extremely important for successful diagnosis and treatament. Considering that in most species the serum chemistry profile is influenced by race, climate and management, we decided to determine the values of aspartate aminotransferase (AST, alanine aminotransferase (ALT, uric acid, creatinine, creatine kinase (CK, phosphatase alkaline (ALP, gamma-glutamyltransferase (GGT, total protein (TP and albumin of Dekalb hens in the region of Araçatuba - SP. All samples were processed soon after harvesting in an automatic biochemical analyzer calibrated and monitored with control serum levels I and II. The following confidence intervals were obtained: 44-65,5 U / L (AST; 18,4-21,2 U / L (ALT, 2.1-2.5 mg / dL (uric acid; 1.7 to 5.7 U / L (CK; CI 1.2-2.2 mg / dL (creatinine, 1276-1506 U / L (FA; 18-23,4 U / L (GGT; 27.12 to 29 g / L (PT, from 11.4 to 12.16 g / L (albumin.O estabelecimento de valores bioquímicos de referência é de extrema importância para o sucesso do diagnóstico e do tratamento. Considerando que na maioria das espécies o perfil bioquímico sérico sofre influência de raça, clima e manejo, decidiu-se determinar os valores de aspartato aminotransferase (AST, alanina aminotransferase (ALT, ácido úrico, creatinina, creatina quinase (CK, fostatase alcalina (FA, gama-glutamiltransferase (GGT, proteína total (PT e albumina de galinhas poedeiras da linhagem Dekalb da região de Araçatuba – SP. Todas as amostras foram processadas logo após a colheita em um analisador bioquímico automatizado previamente calibrado e monitorado com soros controles nível I e II. Obtiveram-se os seguintes intervalos de confiança: 44-65,5 U/L (AST; 18,4-21,2 U/L (ALT; 2,1–2,5 mg/dL (ácido úrico ; 1,7– 5,7 U/L (CK ; 1,2–2,2 mg/dL (creatinina; 1276–1506 U/L (FA; 18-23,4 U/L (GGT; 27,12– 29 g/L (PT; 11,4 – 12,16 g/L (albumina.

  2. Correspondencia sobre la estela romana de Araño (Rianxo conservada en el Museo de Pontevedra

    Directory of Open Access Journals (Sweden)

    Santos Fernández, Carlos

    2014-12-01

    Full Text Available The aim of this collaboration is to present a series of documents, basically letters (signed by Casto Sampedro, Eladio Oviedo Arce, Ricardo Blanco-Cicerón and others about a Roman tombstone that was found in 1907 in Araño (Rianxo, A Coruña, Spain, and at present is in the Museo de Pontevedra. The documents, which are reproduced in an appendix, come from four Galician archives (Museo do Pobo Galego, Museo de Pontevedra, Real Academia Galega, Catedral de Santiago and Instituto de Estudios Gallegos Padre Sarmiento, and they provide new data about the discovery of the stele, the laborious process for his acquisition, the admission into the Sociedad Arqueológica de Pontevedra, his exhibition in the Exposición Regional Gallega de 1909, and the fruitless negotiations on the definitive permanency of the tombstone in Santiago. The stele’s description (text, anthropomorphic decoration and architectural decoration and a bibliographical update over this gravestone precede the study of the documents and his transcription.La finalidad de esta colaboración es dar a conocer un conjunto de documentos, fundamentalmente cartas (suscritas, entre otros, por Casto Sampedro, Eladio Oviedo Arce o Ricardo Blanco-Cicerón, acerca de una estela funeraria romana (CIRG-I n.º 81 adscribible al Subgrupo Rías Baixas, hallada en 1907 en Araño (Rianxo y que actualmente se exhibe en el Museo de Pontevedra. Los documentos, que se transcriben íntegramente en el Apéndice, proceden de cinco archivos gallegos (Museo do Pobo Galego, Museo de Pontevedra, Real Academia Galega, Catedral de Santiago e Instituto de Estudios Gallegos Padre Sarmiento, y proporcionan nuevos datos sobre el descubrimiento de la estela, las laboriosas gestiones encaminadas a su adquisición, el ingreso en la Sociedad Arqueológica de Pontevedra, su exhibición en la Exposición Regional Gallega de 1909 y las infructuosas negociaciones encaminadas a que la pieza quedara definitivamente en Santiago

  3. Ruminant beslemede kullanılan bazı yemlerin in vivo ve in vitro sindirebilirlikleri arasındaki ilişkiler

    OpenAIRE

    1994-01-01

    Bu araştırma, Türkiye'de yetiştirilen bazı ruminant yemlerinin "in vivo" ve "in vitro" yöntemleri kullanmak suretiyle organik madde ve kuru madde sindirilebilirliklerini, bunlar arasındaki ilişkileri ve yemlerin metabolik enerji değerlerini belirlemek amacıyla yürütülmüştür. "in vivo" yöntem (naylon torba yöntemi) ve "in vitro" yöntemler (kesif yemler yöntemi vesellülaz yöntemi) uygulanarak, kaba yemler (yonca kuru otu ve buğday samanı) 48 saat, kesif yemler 24 saat inkübasyona bırak...

  4. An Integrated MCDM Model for Conveyor Equipment Evaluation and Selection in an FMC Based on a Fuzzy AHP and Fuzzy ARAS in the Presence of Vagueness.

    Science.gov (United States)

    Nguyen, Huu-Tho; Dawal, Siti Zawiah Md; Nukman, Yusoff; Rifai, Achmad P; Aoyama, Hideki

    2016-01-01

    The conveyor system plays a vital role in improving the performance of flexible manufacturing cells (FMCs). The conveyor selection problem involves the evaluation of a set of potential alternatives based on qualitative and quantitative criteria. This paper presents an integrated multi-criteria decision making (MCDM) model of a fuzzy AHP (analytic hierarchy process) and fuzzy ARAS (additive ratio assessment) for conveyor evaluation and selection. In this model, linguistic terms represented as triangular fuzzy numbers are used to quantify experts' uncertain assessments of alternatives with respect to the criteria. The fuzzy set is then integrated into the AHP to determine the weights of the criteria. Finally, a fuzzy ARAS is used to calculate the weights of the alternatives. To demonstrate the effectiveness of the proposed model, a case study is performed of a practical example, and the results obtained demonstrate practical potential for the implementation of FMCs.

  5. A comparison of clofarabine with ara-C, each in combination with daunorubicin as induction treatment in older patients with acute myeloid leukaemia

    DEFF Research Database (Denmark)

    Burnett, A K; Russell, N H; Hills, R K

    2017-01-01

    .02 (0.83-1.24), P=0.9) or overall survival (23% vs 22%; HR 1.08 (0.93-1.26), P=0.3). Clofarabine 20 mg/m(2) given for 5 days with daunorubicin is not superior to ara-C+daunorubicin as induction for older patients with AML/high-risk MDS.Leukemia advance online publication, 30 September 2016; doi:10.1038...

  6. Complete genome sequence of Haloferax gibbonsii strain ARA6, a potential producer of polyhydroxyalkanoates and halocins isolated from Araruama, Rio de Janeiro, Brasil.

    Science.gov (United States)

    Pinto, Leonardo H; D'Alincourt Carvalho-Assef, Ana Paula; Vieira, Ricardo P; Clementino, Maysa M; Albano, Rodolpho M

    2015-10-20

    Haloferax gibbonsii strain ARA6 is a haloarchaea isolated from saline saltern samples from Vermelha lake, located in Araruama region, Rio de Janeiro, Brazil. Its genome displays 66,2% G+C content and is composed by one circular chromosome of 2,945,391 bp and four circular plasmids comprising 993,063 bp. This genomic information shows H. gibbonsii's potential for biotechnological applications and can also contribute to assign evolutionary traits in the genus Haloferax.

  7. AraC/XylS family stress response regulators Rob, SoxS, PliA, and OpiA in the fire blight pathogen Erwinia amylovora.

    Science.gov (United States)

    Pletzer, Daniel; Schweizer, Gabriel; Weingart, Helge

    2014-09-01

    Transcriptional regulators of the AraC/XylS family have been associated with multidrug resistance, organic solvent tolerance, oxidative stress, and virulence in clinically relevant enterobacteria. In the present study, we identified four homologous AraC/XylS regulators, Rob, SoxS, PliA, and OpiA, from the fire blight pathogen Erwinia amylovora Ea1189. Previous studies have shown that the regulators MarA, Rob, and SoxS from Escherichia coli mediate multiple-antibiotic resistance, primarily by upregulating the AcrAB-TolC efflux system. However, none of the four AraC/XylS regulators from E. amylovora was able to induce a multidrug resistance phenotype in the plant pathogen. Overexpression of rob led to a 2-fold increased expression of the acrA gene. However, the rob-overexpressing strain showed increased resistance to only a limited number of antibiotics. Furthermore, Rob was able to induce tolerance to organic solvents in E. amylovora by mechanisms other than efflux. We demonstrated that SoxS from E. amylovora is involved in superoxide resistance. A soxS-deficient mutant of Ea1189 was not able to grow on agar plates supplemented with the superoxide-generating agent paraquat. Furthermore, expression of soxS was induced by redox cycling agents. We identified two novel members of the AraC/XylS family in E. amylovora. PliA was highly upregulated during the early infection phase in apple rootstock and immature pear fruits. Multiple compounds were able to induce the expression of pliA, including apple leaf extracts, phenolic compounds, redox cycling agents, heavy metals, and decanoate. OpiA was shown to play a role in the regulation of osmotic and alkaline pH stress responses.

  8. The transcriptional activators AraR and XlnR from Aspergillus niger regulate expression of pentose catabolic and pentose phosphate pathway genes.

    Science.gov (United States)

    Battaglia, Evy; Zhou, Miaomiao; de Vries, Ronald P

    2014-09-01

    The pentose catabolic pathway (PCP) and the pentose phosphate pathway (PPP) are required for the conversion of pentose sugars in fungi and are linked via d-xylulose-5-phosphate. Previously, it was shown that the PCP is regulated by the transcriptional activators XlnR and AraR in Aspergillus niger. Here we assessed whether XlnR and AraR also regulate the PPP. Expression of two genes, rpiA and talB, was reduced in the ΔaraR/ΔxlnR strain and increased in the xylulokinase negative strain (xkiA1) on d-xylose and/or l-arabinose. Bioinformatic analysis of the 1 kb promoter regions of rpiA and talB showed the presence of putative XlnR binding sites. Combining all results in this study, it strongly suggests that these two PPP genes are under regulation of XlnR in A. niger.

  9. [Intravascular large B-cell lymphoma with pontine involvement successfully treated with R-hyper-CVAD/R-MTX-Ara-C regimen].

    Science.gov (United States)

    Nakazato, Tomonori; Suzuki, Kazuhito; Mihara, Ai; Sanada, Yukinari; Yoshida, Sachiko; Kakimoto, Tsunayuki

    2010-02-01

    A 47-year-old woman was admitted to our hospital complaining of persistent fever and dry cough in June 2007. CT scan showed hepatosplenomegaly. Laboratory data revealed pancytopenia and increased levels of LDH and soluble interleukin-2 receptor. Malignant lymphoma was suspected, but histological diagnosis was difficult because superficial lymph nodes could not be palpated. Histological examination of the bone marrow biopsy specimen demonstrated the proliferation of large atypical lymphoid cells positive for CD20 and CD79a in the small capillaries, leading to the diagnosis of intravascular large B-cell lymphoma (IVLBCL). Although the results of neurological examination and CSF analysis were normal, head MRI showed a T2-hyperintense lesion in the pons. We chose R-hyper-CVAD/R-MTX-Ara-C alternating therapy with MTX intrathecal injection because CNS involvement in IVLBCL was highly suspected, and she responded well. Head MRI showed the disappearance of the abnormal signal in the pons after one cycle of R-hyper-CVAD. Five cycles of R-hyper-CVAD/R-MTX-Ara-C were performed and complete remission was obtained. R-hyper-CVAD/R-MTX-Ara-C alternating therapy was effective in an IVLBCL patient with CNS involvement.

  10. Effects of ara A and fresh medium on chromosome damage and DNA double-strand break repair in X-irradiated stationary cells

    Energy Technology Data Exchange (ETDEWEB)

    Bryant, P.E. (GSF-Abteilung fuer Biophysikalische Strahlenforschung, Frankfurt am Main (Germany, F.R.))

    1984-01-01

    The detailed kinetics of repair of dsb in Ehrlich ascites tumour cells over long repair intervals have been studied and compared under conditions simulating procedures known to cause large changes in cell survival, i.e. holding cells in stationary phase for 7 h after x-radiation, transference of cells to fresh growth medium immediately after x-radiation, and treatment with the DNA synthesis inhibitor 9-..beta..-D-arabinofuranosyladenine (ara A) for 30 min before, during and for 7 h after x-irradiation. These conditions have also been investigated for their effects on frequencies of chromosome abnormalities (anaphase bridges and fragments). Conditions leading to both an inhibition of dsb repair (in the presence of ara A) as well as an acceleration of dsb repair (by fresh growth medium) led to higher frequencies of chromosome abnormalities compared with those for cells under stationary conditions for 7 h after irradiation. Holding dsb open for long periods with ara A may maximize the probability of formation of aberrations, however, the data for fresh medium treatment showed it is not merely the rate at which dsb repair which determines the aberration frequency, and indicated the presence of other biochemical mechanisms in the cell determining the frequency of conversion of dsb into chromosome aberrations.

  11. Description of a PCR-based technique for DNA splicing and mutagenesis by producing 5' overhangs with run through stop DNA synthesis utilizing Ara-C

    Directory of Open Access Journals (Sweden)

    Silverman Mel

    2005-09-01

    Full Text Available Abstract Background Splicing of DNA molecules is an important task in molecular biology that facilitates cloning, mutagenesis and creation of chimeric genes. Mutagenesis and DNA splicing techniques exist, some requiring restriction enzymes, and others utilize staggered reannealing approaches. Results A method for DNA splicing and mutagenesis without restriction enzymes is described. The method is based on mild template-dependent polymerization arrest with two molecules of cytosine arabinose (Ara-C incorporated into PCR primers. Two rounds of PCR are employed: the first PCR produces 5' overhangs that are utilized for DNA splicing. The second PCR is based on polymerization running through the Ara-C molecules to produce the desired final product. To illustrate application of the run through stop mutagenesis and DNA splicing technique, we have carried out splicing of two segments of the human cofilin 1 gene and introduced a mutational deletion into the product. Conclusion We have demonstrated the utility of a new PCR-based method for carrying out DNA splicing and mutagenesis by incorporating Ara-C into the PCR primers.

  12. Internet kullanicilarinin demografik özellikleri ile önde gelen web arama motorlari tercihleri arasindaki ilişki üzerine bir araştirma

    Directory of Open Access Journals (Sweden)

    Evren AYRANCI

    2010-10-01

    Full Text Available Günümüzde milyarlarca insan interneti farklı amaçlar için kullanmaktadır. Web arama motorları internet kullanıcıları arasında, ihtiyaç duyulan bilgiyi bulmak için çok popülerdir. Bu makale, internet kullanıcılarının bazı demografik özellikleri ile önde gelen web arama motorları tercihleri arasında bir ilişkinin olup olmadığını anlamak için yapılan bir araştırmayı içermektedir. Elde edilen sonuçlara göre demografik özelliklerin çoğu önde gelen web arama motorları tercihleri ile bir takım bağlantılara sahiptir.

  13. Internet kullanicilarinin demografik özellikleri ile önde gelen web arama motorlari tercihleri arasindaki ilişki üzerine bir araştirma

    OpenAIRE

    Evren AYRANCI

    2010-01-01

    Günümüzde milyarlarca insan interneti farklı amaçlar için kullanmaktadır. Web arama motorları internet kullanıcıları arasında, ihtiyaç duyulan bilgiyi bulmak için çok popülerdir. Bu makale, internet kullanıcılarının bazı demografik özellikleri ile önde gelen web arama motorları tercihleri arasında bir ilişkinin olup olmadığını anlamak için yapılan bir araştırmayı içermektedir. Elde edilen sonuçlara göre demografik özelliklerin çoğu önde gelen web arama motorları tercihleri ile bir takım bağla...

  14. Sensory descriptive quantitative analysis of unpasteurized and pasteurized juçara pulp (Euterpe edulis) during long-term storage.

    Science.gov (United States)

    da Silva, Paula Porrelli Moreira; Casemiro, Renata Cristina; Zillo, Rafaela Rebessi; de Camargo, Adriano Costa; Prospero, Evanilda Teresinha Perissinotto; Spoto, Marta Helena Fillet

    2014-07-01

    This study evaluated the effect of pasteurization followed by storage under different conditions on the sensory attributes of frozen juçara pulp using quantitative descriptive analysis (QDA). Pasteurization of packed frozen pulp was performed by its immersion in stainless steel tank containing water (80°C) for 5 min, followed by storage under refrigerated and frozen conditions. A trained sensory panel evaluated the samples (6°C) on day 1, 15, 30, 45, 60, 75, and 90. Sensory attributes were separated as follows: appearance (foamy, heterogeneous, purple, brown, oily, and creamy), aroma (sweet and fermented), taste (astringent, bitter, and sweet), and texture (oily and consistent), and compared to a reference material. In general, unpasteurized frozen pulp showed the highest score for foamy appearance, and pasteurized samples showed highest scores to creamy appearance. Pasteurized samples remained stable regarding brown color development while unpasteurized counterparts presented increase. Color is an important attribute related to the product identity. All attributes related to taste and texture remained constant during storage for all samples. Pasteurization followed by storage under frozen conditions has shown to be the best conservation method as samples submitted to such process received the best sensory evaluation, described as foamy, slightly heterogeneous, slightly bitter, and slightly astringent.

  15. Computer-Based Annotation of Putative AraC/XylS-Family Transcription Factors of Known Structure but Unknown Function

    Directory of Open Access Journals (Sweden)

    Andreas Schüller

    2012-01-01

    Full Text Available Currently, about 20 crystal structures per day are released and deposited in the Protein Data Bank. A significant fraction of these structures is produced by research groups associated with the structural genomics consortium. The biological function of many of these proteins is generally unknown or not validated by experiment. Therefore, a growing need for functional prediction of protein structures has emerged. Here we present an integrated bioinformatics method that combines sequence-based relationships and three-dimensional (3D structural similarity of transcriptional regulators with computer prediction of their cognate DNA binding sequences. We applied this method to the AraC/XylS family of transcription factors, which is a large family of transcriptional regulators found in many bacteria controlling the expression of genes involved in diverse biological functions. Three putative new members of this family with known 3D structure but unknown function were identified for which a probable functional classification is provided. Our bioinformatics analyses suggest that they could be involved in plant cell wall degradation (Lin2118 protein from Listeria innocua, PDB code 3oou, symbiotic nitrogen fixation (protein from Chromobacterium violaceum, PDB code 3oio, and either metabolism of plant-derived biomass or nitrogen fixation (protein from Rhodopseudomonas palustris, PDB code 3mn2.

  16. PSICOLOGIA AMBIENTAL: UM ESTUDO ACERCA DA RESISTÊNCIA FRENTE À MINERAÇÃO EM IÇARA, SC

    Directory of Open Access Journals (Sweden)

    Rosa Nadir Teixeira Jerônimo

    2015-04-01

    Full Text Available O presente estudo insere-se no âmbito da Psicologia Ambiental, o qual investiga a resistência dos moradores das comunidades de Santa Cruz e Esperança (Içara/SC à abertura de uma mineradora de carvão. Realizou-se um estudo de caso por meio de entrevistas semiestruturadas com seis sujeitos de duas famílias destas comunidades, abrangendo três gerações. Buscou-se compreender os significados psicossocioambientais que os agricultores das comunidades de Santa Cruz e Esperança atribuem às possíveis ameaças das atividades da mineradora no local. Os resultados inferem que resistir à mineradora em tais comunidades significa preservar a identidade cultural e de lugar. Os sujeitos demonstram uma identificação com a comunidade e com o trabalho que desenvolvem, a agricultura familiar aponta como um elo entre as gerações, que influencia na construção da identidade social destes, e por fim, permite compreender o seu sentimento de pertença e a luta pela preservação do seu lugar.

  17. [Reseña: La temporalidad estremecida] Araújo, A. (2013. Todos los tiempos, el tiempo. Montevideo: Psicolibros

    Directory of Open Access Journals (Sweden)

    Ana Luisa Hounie

    2014-05-01

    Full Text Available Corrientes muy diversas del pensamiento que procuran dar luz al problema de la percepción humana de la experiencia del mundo (desde Wilfrid Sellars (1962 a Edgar Morin (2001 -por situar dos filósofos que se encuentran en el origen de concepciones epistemológicas bien distintas- coinciden en un punto: de lo que se trata es de entender de qué forma las cosas, en el sentido más amplio posible, se componen juntas. El texto de Ana María Araújo fortifica esta idea doblemente, pues esta composición resulta precisamente el fundamento epistémico que le da lugar y al mismo tiempo el principio que sostiene el riguroso método que lo hace posible. En otras palabras, desde el comienzo hasta el final, la autora produce una respuesta en acto a la pregunta por el tiempo que guía su inquietud investigativa.

  18. Chandra X-ray Observations of the Young Stellar Cluster NGC 6193 in the Ara OB1 Association

    CERN Document Server

    Skinner, S L; Palla, F; Barbosa, C L D R

    2005-01-01

    A 90 ks Chandra HETG observation of the young stellar cluster NGC 6193 in the southern Ara OB1 association detected 43 X-ray sources in a 2' x 2' core region centered on the young O stars HD 150135 (O6.5V) and HD 150136 (O3+O6V). The cluster is dominated by exceptionally bright X-ray emission from the two O stars, which are separated by only 10 arcsecs. The X-ray luminosity of HD 150136 is log Lx = 33.39 (ergs/s), making it one of the most luminous O-star X-ray sources known. All of the fainter X-ray sources in the core region have near-IR counterparts, but JHK photometry provides little evidence for near-IR excesses. These core sources have typical mean photon energies of 2 keV and about one-third are variable. It is likely that some are young low-mass stars in the cluster, but cluster membership remains to be determined. Grating spectra show that the X-ray properties of HD 150135 and HD 150136 are similar, but not identical. Both have moderately broadened unshifted emission lines and their emission is domin...

  19. Diversidad de arañas (Arachnida: Araneae en hábitats antropogénicos Diversity of spiders (Arachnida: Araneae in anthropogenic habitats

    Directory of Open Access Journals (Sweden)

    Marco Antonio Desales-Lara

    2013-03-01

    Full Text Available La construcción de ciudades constituye la transformación más drástica, fundamental e irreversible de los sistemas naturales, reemplazando todo componente biótico y abiótico original del lugar. Entre los artrópodos que han podido adaptarse a los ambientes urbanos se encuentran las arañas. Se encontraron 41 especies en el interior de 12 casas de 2 niveles de la ciudad de Toluca, ubicadas en 4 ambientes con diferente grado de urbanización, durante el periodo de septiembre del 2009 a agosto del 2010. Por primera vez se empleó un método sistematizado para recolecta de arañas en el interior de las viviendas. La diversidad de arañas fue diferente en cada uno de los ambientes muestreados; el índice de Shannon (H' mostró que la diversidad de arañas es mayor en las casas que presentan jardín en el ambiente urbano, por lo que no se apoya la hipótesis del disturbio intermedio. El número de arañas encontradas fue mayor en el primer nivel de las viviendas que en el segundo, por lo que se proponen 3 hipótesis para explicar esta diferencia. Se propone la prueba de Olmstead-Tukey para determinar los 4 niveles de sinantropismo (N. S., ya que la prueba engloba valores utilizados en los índices de densidad e infestación (ocupación.City-building is the most drastic, fundamental and irreversible transformation of natural environments, replacing all original biotic and abiotic components of the site. Spiders are among the arthropods that have become adapted to urban environments. We found 41 species within 12 two-story houses of the city of Toluca, located in 4 environments with different degrees of urbanization, during the period September 2009-August 2010. For the first time a systematic method was used to collect spiders inside houses with even collecting efforts. The diversity of spiders is different in each of the sampled environments, the Shannon index (H ' indicated that the diversity of spiders was higher in houses with gardens in the

  20. Etnoecologia e etnobotânica da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, São Paulo Ethnoecology and ethnobotany of the juçara palm (Euterpe edulis Martius in "quilombola" communities of the Ribeira River Valley, São Paulo

    Directory of Open Access Journals (Sweden)

    Renata Moreira Barroso

    2010-06-01

    Full Text Available As comunidades quilombolas são consideradas comunidades negras rurais formadas por descendentes de africanos escravizados. No Vale do Ribeira, uma das regiões mais pobres do estado de São Paulo, estas comunidades vivem da agricultura de subsistência e principalmente da coleta do palmito juçara para complemento da renda familiar. A palmeira juçara possui importante papel ecológico e econômico para a Floresta Atlântica e para as comunidades rurais locais. O objetivo geral deste trabalho foi investigar aspectos etnoecológicos e etnobotânicos da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, SP. A investigação se deu em sete comunidades quilombolas através da aplicação de 25 entrevistas semi-estruturadas e da realização de uma oficina de identificação dos animais consumidores de frutos da palmeira. Também foram realizadas coletas e identificação de visitantes florais. Os quilombolas entrevistados demonstraram um detalhado conhecimento ecológico local sobre a palmeira juçara, principalmente a relação da biodiversidade animal associada à espécie. Neste trabalho a etnoecologia e a etnobotânica mostram-se ferramentas importantes no levantamento participativo do conhecimento ecológico local do E. edulis que pode ser considerado no manejo e na conservação da espécie na Floresta Atlântica."Quilombola" communities are distributed all over Brazil. They are composed of the descendents of African slaves. In the Ribeira River Valley, one of the poorest regions in São Paulo state, they practice subsistence agriculture and extract plant resources from the environment, especially the juçara palm (Euterpe edulis Martius, a species that contributes to "quilombola" income. The juçara palm has special ecological and economic importance for "quilombolas". The main aim of this study was to investigate ethnobotanical and ethnoecological aspects of the juçara palm in "quilombola" communities

  1. Zihin Kuramı ve Dil Arasındaki İlişki: Bir Derleme

    Directory of Open Access Journals (Sweden)

    Bahar Keçeli Kaysılı

    2014-08-01

    Full Text Available Diğerlerinin duygularını, düşüncelerini ve isteklerini anlama yani zihin kuramı başarılı bir iletişim için gereklidir. Bu derleme çalışmasında normal gelişen çocuklarda zihin kuramı ve dil ilişkisi ele alınmıştır. Zihin kuramı kazanımını açıklayan teorilerden biri sözdizimi ve zihinsel durum ifade eden eylemlerin, yanlış inancın temsiline olanak sağladığını belirterek bu ilişkiyi incelemektedir. Bu varsayım dil ile zihin kuramı arasındaki ilişkinin doğasını tanımladığı için önemli görülmektedir. Alanyazından derlenen bu çalışmanın çocukların iletişim ve dil gelişimlerini desteklemede, öğretmenlere yol göstereceği düşünülmektedir. Understanding of others’ feelings, thoughts and wishes or a ‘theory of mind’ is essential for competent communication. This study described how language and theory of mind development are related in typically developing children. One of the hypothesis that explains the acquisition of theory of mind, proposed that syntax and mental states verbs provides children to understand representational thoughts like false belief. Because this hypothesis aimed to identify more specifically the nature of this role it is thought to be important. This review of selected literature will help teachers enhance children’s communication and language development.

  2. Age, provenance and tectonic setting of the high-grade Jequitinhonha Complex, Araçuaí Orogen, eastern Brazil

    Directory of Open Access Journals (Sweden)

    Tatiana Gonçalves Dias

    Full Text Available ABSTRACT: The Jequitinhonha Complex of the northeastern Araçuaí orogen is an extensive sedimentary unit metamorphosed in the amphibolite-granulite facies transition around 580-545 Ma. The unit consists of Al-rich (kinzigitic paragneisses with decametric intercalations of graphite gneisses and quartzites, and centimetric to metric lenses of calcsilicate rocks. A new detrital zircon U-Pb age spectrum is reported for a sample of quartzite, and whole-rock geochemical (major and trace elements, 9 samples and Sm-Nd isotope data (10 samples for Jequitinhonha Complex paragneiss. Together with published data these show that: (1 the geochemistry of paragneiss samples of the Jequitinhonha Complex are similar to those of passive margin sedimentary protoliths; (2 detrital zircon data yield U-Pb age populations between ca. 0.9 and 2.5 Ga; and (3 Sm-Nd TDM model ages range from 1.6 to 1.8 Ga and εNd(575 Ma around -7.5. The data reveal a mixture of Cryogenian to Mesoproterozoic rift-related igneous rocks with the Palaeoproterozoic-Archaean basement rocks of the São Francisco-Congo palaeocontinent as the main source areas, and also support the correlation between the Jequitinhonha Complex and the passive margin units of the upper Macaúbas Group, constituting the precursor basin of the orogen. Our results, with the absence of ophiolites in the Jequitinhonha Complex, reinforce the interpretation that the São Francisco-Congo palaeocontinent was not divided to the north of the focused region, suggesting an ensialic termination of a gulf during the Neoproterozoic.

  3. Physico-chemical study of the ancient and recent accumulations of a braided system (Ara river. Central Pyrenees, Spain

    Directory of Open Access Journals (Sweden)

    Rubio, V.

    1997-12-01

    Full Text Available The physico-chemical and mineralogical study of the Ara river sediments, in the Central Pyrenees (Spain, allows to recognize the genesis and evolution of its basin. The minerals of the sand fraction, the ones corresponding to the clay fraction and the minority elements, reveal certain processes and associations that, in addition to the identification of the fluvial terraces, fans, glacis and even morainic deposits, contribute to explain the geological history of the Central Pyrenees, the main objective of this work. The application of a multivariate factorial analysis to the data with BMDP-4M program was very helpful for the interpretation of the results. The more resistant minerals are found in the thinner textural fractions, whereas the more alterable are located in the thicker fractions. The cones and glacis, composed by materials of the flysch, reveal an alteration of the carbonated materials which is shown by the formation of feldspars and anphybols. The formation of iron and manganese metal oxides, of different crystallinity degrees, associated with chrome, lead and nickel, is also observed. The morainic deposits, mainly composed by silicate materials, bring along the formation of illite associated with copper and zinc. Finally, the fluvial terraces have a combination of both alteration processes previously described.

    [es] El estudio físico-químico y mineralógico de los sedimentos del río Ara, en el Pirineo Central (España, permite reconocer la génesis y evolución de su cuenca. Los minerales de la fracción arena, los correspondientes a la fracción arcilla y los elementos minoritarios, delatan ciertos procesos y asociaciones que, junto con la identificación de terrazas fluviales, conos, glacis e incluso depósitos morrénicos, ayudan a explicar la historia geológica del Pirineo Central, principal objetivo de este trabajo. La aplicación al conjunto de datos de un análisis factorial multivariante mediante el programa BMDP

  4. What Characteristics Confer Proteins the Ability to Induce Allergic Responses? IgE Epitope Mapping and Comparison of the Structure of Soybean 2S Albumins and Ara h 2

    Directory of Open Access Journals (Sweden)

    Youngshin Han

    2016-05-01

    Full Text Available Ara h 2, a peanut 2S albumin, is associated with severe allergic reactions, but a homologous protein, soybean 2S albumin, is not recognized as an important allergen. Structural difference between these proteins might explain this clinical discrepancy. Therefore, we mapped sequential epitopes and compared the structure of Ara h 2, Soy Al 1, and Soy Al 3 (Gly m 8 to confirm whether structural differences account for the discrepancy in clinical responses to these two proteins. Commercially synthesized peptides covering the full length of Ara h 2 and two soybean 2S albumins were analyzed by peptide microarray. Sera from 10 patients with peanut and soybean allergies and seven non-atopic controls were examined. The majority of epitopes in Ara h 2 identified by microarray are consistent with those identified previously. Several regions in the 2S albumins are weakly recognized by individual sera from different patients. A comparison of allergenic epitopes on peanut and soybean proteins suggests that loop-helix type secondary structures and some amino acids with a large side chain including lone electron pair, such as arginine, glutamine, and tyrosine, makes the peptides highly recognizable by the immune system. By utilizing the peptide microarray assay, we mapped IgE epitopes of Ara h 2 and two soybean 2S albumins. The use of peptide microarray mapping and analysis of the epitope characteristics may provide critical information to access the allergenicity of food proteins.

  5. An altered immune response, but not individual cationic antimicrobial peptides, is associated with the oral attenuation of Ara4N-deficient Salmonella enterica serovar Typhimurium in mice.

    Directory of Open Access Journals (Sweden)

    Kristi L Strandberg

    Full Text Available Salmonella enterica serovar Typhimurium (S. Typhimurium uses two-component regulatory systems (TCRS to respond to stimuli in the local microenvironment. Upon infection, the Salmonella TCRSs PhoP-PhoQ (PhoPQ and PmrA-PmrB (PmrAB are activated by environmental signals in the intestinal lumen and within host cells. TCRS-mediated gene expression results in lipopolysaccharide (LPS modification and cationic antimicrobial peptide resistance. The PmrA-regulated pmrHFIJKLM operon mediates 4-amino-4-deoxy-L-arabinose (Ara4N production and attachment to the lipid A of LPS. A ΔpmrF S. Typhimurium strain cannot produce Ara4N, exhibits increased sensitivity to cationic antimicrobial peptide (CAMP-mediated killing, and attenuated virulence in mice upon oral infection. CAMPs are predicted to play a role in elimination of Salmonella, and may activate PhoPQ and PmrAB in vivo, which could increase bacterial resistance to host defenses. Competition experiments between wild type (WT and ΔpmrF mutant strains of S. Typhimurium indicated that selection against this mutant first occurs within the intestinal lumen early during infection. However, CRAMP and active cryptdins alone are not responsible for elimination of Ara4N-deficient bacteria in vivo. Investigation into the early immune response to ΔpmrF showed that it differed slightly from the early immune response to WT S. Typhimurium. Further investigation into the early immune response to infection of Peyer's patches suggests a role for IL-13 in the attenution of the ΔpmrF mutant strain. Thus, prominent CAMPs present in the mouse intestine are not responsible for the selection against the ΔpmrF strain in this location, but limited alterations in innate immune induction were observed that affect bacterial survival and virulence.

  6. Evaluación clínica de la nefroprotección de los bloqueadores de anglotensina II (ARA II

    Directory of Open Access Journals (Sweden)

    Mariana Blanco-Uhienhaut

    2003-06-01

    Full Text Available Actualmente, los antagonistas del receptor de angiotensina II (ARA II representan el grupo de medicamentos más novedosos para el manejo de la hipertensión arterial y una posible alternativa a los inhibidores de la enzima convertidora de angiotensina (IECAS para el tratamiento de los pacientes diabéticos tipo 2. Por lo relevante y polémico del tema, la presente constituye una revisión de diversos ensayos clínicos, con el fin de identificar algún beneficio nefroprotector en los pacientes diabéticos tipo 2 con o sin HTA. Se exponen y analizan los resultados obtenidos en los estudios referidos como REENAL, IDNT, IRMA II y MARVAL. En conclusión, el efecto nefroprotector atribuido a los ARA II se refiere específicamente a los cambios en la morbilidad de la nefropatía y a "enlentecer", en algunos casos, la progresión de la enfermedad en los pacientes diabéticos; pero no se cuenta con elementos para generalizar esa cualidad a todos los fármacos del grupo. Sin embargo, sí podrían estar indicados como alternativa terapéutica a los IECAs ante problemas de tolerabilidad. Con los datos disponibles no es apropiado esperar los mismos efectos nefroprotectores de los IECAS, debido a que ningún ARA II ha disminuido la mortalidad de los pacientes con nefropatía diabética tipo 2 e HTA.

  7. Tratamiento de una sesión de la fobia específica a las arañas en niños

    Directory of Open Access Journals (Sweden)

    Graciela Bermúdez-Ornelas

    2008-01-01

    Full Text Available Este estudio se propuso explorar el efecto del tratamiento de una sesión conductual de la fobia específica, diseñado por Öst, sobre las conductas de acercamiento y manipulación de las arañas por parte de niños con diagnóstico de fobia específica y su ansiedad, según la percepción de sus padres, una semana, tres y seis meses después del tratamiento. El estudio cuasiexperimental empleó un diseño de serie temporal interrumpida simple. Se aplicó la intervención en forma individual a 10 niños, entre 7 y 12 años, diagnosticados con fobia específica a las arañas. Se evaluó, antes, una semana después del tratamiento, tres y seis meses después, la respuesta de aproximación de los niños a las arañas y su ansiedad/depresión de acuerdo con el informe de sus padres. Se observaron mejoras estadística y clínicamente significativas después del tratamiento y tres meses después en todos los niños. La mejoría se mantuvo a los seis meses después del tratamiento para seis de los siete niños que terminaron el estudio. Los hallazgos se discuten a la luz de su relevancia clínica. Se repiten los resultados de estudios anteriores sobre la eficacia del tratamiento de una sesión en niños latinoamericanos.

  8. El contorno del fantasma: La huella de la historia en el Beso de la Mujer Araña, de Manuel Puig

    Directory of Open Access Journals (Sweden)

    Graciela Beatriz Goldchluk

    1996-11-01

    Full Text Available El artículo se inscribe dentro de la investigación geneticista del proceso de escritura de El beso de la mujer araña [novela] de Manuel Puig. A partir de la confrontación de distintos manuscritos, presentamos una hipótesis sobre la inscripción de la historia argentina en los procesos de escritura. Se incluye la edición facsimilar de la primera página del comienzo de la novela y de un pre-texto que contiene el plan de la novela, ambos manuscritos

  9. Análisis de la topología de la tela de araña en su comportamiento frente a impacto

    OpenAIRE

    2013-01-01

    En el presente proyecto se estudiará la tela de araña “orb web”, debido a que es la forma más conocida y presenta características estructurales universales que están conservadas entre las especies, lo que sugiere que se ha beneficiado de la selección natural a lo largo de su evolución (Aoyanagi 2010). La topología tan definida que tiene se presta a una modelización ideal más sencilla, observando una imagen se pueden identificar los elementos que la constituyen. Con esto se crea...

  10. Evaluación clínica de la nefroprotección de los bloqueadores de anglotensina II (ARA II)

    OpenAIRE

    Mariana Blanco-Uhienhaut; Desirée Sáenz-Campos

    2003-01-01

    Actualmente, los antagonistas del receptor de angiotensina II (ARA II) representan el grupo de medicamentos más novedosos para el manejo de la hipertensión arterial y una posible alternativa a los inhibidores de la enzima convertidora de angiotensina (IECAS) para el tratamiento de los pacientes diabéticos tipo 2. Por lo relevante y polémico del tema, la presente constituye una revisión de diversos ensayos clínicos, con el fin de identificar algún beneficio nefroprotector en los pacientes diab...

  11. Disclosing the Paleoarchean to Ediacaran history of the São Francisco craton basement: The Porteirinha domain (northern Araçuaí orogen, Brazil)

    Science.gov (United States)

    Silva, Luiz Carlos da; Pedrosa-Soares, Antonio Carlos; Armstrong, Richard; Pinto, Claiton Piva; Magalhães, Joana Tiago Reis; Pinheiro, Marco Aurélio Piacentini; Santos, Gabriella Galliac

    2016-07-01

    This geochronological and isotopic study focuses on one of the Archean-Paleoproterozoic basement domains of the São Francisco craton reworked in the Araçuaí orogen, the Porteirinha domain, Brazil. It also includes a thorough compilation of the U-Pb geochronological data related to the adjacent Archean and Rhyacian terranes from the São Francisco craton and Araçuaí orogen. The main target of this study is the TTG gneisses of the Porteirinha complex (Sample 1). The gneiss dated at 3371 ± 6 Ma unraveled a polycyclic evolution characterized by two metamorphic overprinting episodes, dated at 3146 ± 24 Ma (M1) and ca. 600 Ma (M2). The former (M1) is so far the most reliable evidence of the oldest metamorphic episode ever dated in Brazil. The latter (M2), in turn, is endemic in most of the exposed eastern cratonic margin within the Araçuaí orogen. Whole-rock Sm-Nd analysis from the gneiss provided a slightly negative εNd(t3370) = - 0.78 value, and a depleted mantle model (TDM) age of 3.5 Ga, indicating derivation mainly from the melting of a ca. 3.5 Ga tholeiitic source. Sample 2, a K-rich leuco-orthogneiss from the Rio Itacambiriçu Complex, was dated at 2657 ± 25 Ma and also presents a ca. 600 Ma M2 overprinting M2 age. The other two analyses were obtained from Rhyacian granitoids. Sample 3 is syn-collisional, peraluminous leucogranite from the Tingui granitic complex, showing a crystallization age of 2140 ± 14 Ma and strong post-crystallization Pb*-loss, also ascribed to the Ediacaran overprinting. Accordingly, it is interpreted as a correlative of the late Rhyacian (ca. 2150-2050 Ma) collisional stage of the Mantiqueira orogenic system/belt (ca. 2220-2000 Ma), overprinted by the Ediacaran collage. Sample 4 is a Rhyacian post-orogenic (post-collisional), mixed-source, peralkaline, A1-type suite, with a crystallization age of 2050 ± 10 Ma, presenting an important post-crystallization Pb*-loss related to Ediacaran collision. The focused region records some

  12. "Örgüt Kültürü” Ve “Liderlik” türlerine ilişkin algılamalar ile yöneticilerin demografik özellikleri arasındaki ilişki: Bir alan araştırması

    OpenAIRE

    İsmail BAKAN

    2008-01-01

    Literatürde, liderliğin örgütün etkinliği ve örgütsel kültürün oluşumu ve değişiminde önemli rol oynadığı ileri sürülmektedir. Bu nedenle, bu araştırmada, liderlik ve örgüt kültürü kavramları çalışmanın temel değişkenleri olarak kullanılmıştır. Bu çalışmada farklı “liderlik” ve “örgüt kültürü” türlerine ilişkin yöneticilerin algılamaları ile demografik özellikleri arasındaki ilişkiler incelenmiştir. Araştırma verileri, Kahramanmaraş’ta faaliyette bulunan 12 firmada çalışan yöneticilere uygula...

  13. IgE vs IgG4 epitopes of the peanut allergen Ara h 1 in patients with severe allergy

    DEFF Research Database (Denmark)

    Bøgh, Katrine Lindholm; Nielsen, H.; Eiwegger, T.;

    2013-01-01

    Background: Development and maintenance of tolerance to food allergens may be associated with increased levels of specific IgG4. It has been suggested that co-localisation of IgG4 and IgE binding epitopes may be of great significance for the tolerance, where IgG4 may act by blocking IgE binding...... to the allergen. However, recent studies have demonstrated the very importance of the IgG4-epitope affinity for the blocking ability. Studies comparing IgE and IgG4 binding epitopes mainly focus on the identification of linear epitopes. Peanut allergy is one of the most severe and persistent forms of food allergy....... The importance of conformational epitopes, of the major peanut allergen Ara h 1, has been demonstrated. The aim of this study was to compare Ara h 1-specific epitope patterns for IgE and IgG4 in patients with severe peanut allergy applying a method suitable to identify both linear and conformational epitopes...

  14. Improving the extraction of Ara h 6 (a peanut allergen) from a chocolate-based matrix for immunosensing detection: Influence of time, temperature and additives.

    Science.gov (United States)

    Alves, Rita C; Pimentel, Filipa B; Nouws, Henri P A; Silva, Túlio H B; Oliveira, M Beatriz P P; Delerue-Matos, Cristina

    2017-03-01

    The extraction of Ara h 6 (a peanut allergen) from a complex chocolate-based food matrix was optimized by testing different temperatures, extraction times, and the influence of additives (NaCl and skimmed milk powder) in a total of 36 different conditions. Analyses were carried out using an electrochemical immunosensor. Three conditions were selected since they allowed the extraction of the highest levels of Ara h 6. These extractions were performed using 2g of sample and 20ml of Tris-HNO3 (pH=8) containing: a) 0.1M NaCl and 2g of skimmed milk powder at 21°C for 60min; b) 1M NaCl and 1g of skimmed milk powder at 21°C for 60min; and c) 2g of skimmed milk powder at 60°C for 60min. Recoveries were similar or higher than 94.7%. This work highlights the importance to adjust extraction procedures regarding the target analyte and food matrix components. Copyright © 2016 Elsevier Ltd. All rights reserved.

  15. Human and canine visceral leishmaniasis in an emerging focus in Araçuaí, Minas Gerais: spatial distribution and socio-environmental factors.

    Science.gov (United States)

    Ursine, Renata Luiz; Dias, João Victor Leite; Morais, Harriman Aley; Pires, Herton Helder Rocha

    2016-07-01

    This study aimed to analyse the spatial distribution of human (2007-2013) and canine (2013) visceral leishmaniasis (VL) in the city of Araçuaí, Minas Gerais, Brazil, and identify the socio-environmental factors related to their occurrence. The spatial distribution of human and canine cases was analysed by kernel density estimation (KDE) and the K function. The KDE values were analysed for correlation between human and canine LV and for normalised difference vegetation index (NDVI). Socio-environmental aspects of household structures and surroundings were evaluated. The spatial distribution of human and canine VL cases exhibited a significant aggregated pattern in distances greater than 350 and 75 m, respectively. The higher occurrence of human and canine infection occurred in the central area of the city. A positive correlation between the densities of human and canine cases was observed, as well as a negative correlation between NDVI and densities of human and canine cases. Socio-environmental analysis revealed that the large amount of animals, organic material from trees and deficiencies in environmental sanitation are possibly contributing to the continuation of the transmission cycle of Leishmania infantum in Araçuaí. These results can contribute to the planning by competent agencies to reduce the incidence of infection in the city.

  16. Study of Mechanisms for Development and Strengthening of Water User Cooperatives (Case Study of Aras River Basin: Application of AHP Method

    Directory of Open Access Journals (Sweden)

    Rohallah maghabl

    2014-06-01

    Full Text Available Water user cooperatives were formed due to consideration to people's empowerment and participation in water investment and management. The purpose of this study was to investigate the mechanisms of development and strengthening of water user cooperatives in the Aras River Basin. The study population consisted of the management board members of the water user cooperatives in the Aras Basin in the year 2012. Respondents were selected by purposeful stratified sampling method. Having the data collected by interviews and questionnaires, the Analytic Hierarchy Process (through the software Expert Choice 11 was used to prioritize mechanisms for the development and strengthening of water user cooperatives. Based on the final weights, criterias including supportive strategies, education - extension, policy, communications and legal mechanisms, were prioritized, respectively. The results of the sensitivity analysis showed that sub-criterias including reallocation of credit to change the traditional irrigation to drip and sprinkler irrigation, holding extension and educational courses purposed at promoting farmers’knowledge about their responsibilities for the formation and management of water user cooperatives collaborated with the department of Jihad Agricultural Organization (JKO, the department of Cooperatives and Regional Water Organization; credit and investment provision to improve the processing and package industries, modeling appropriate cropping systems based on the area capacity were the most influential sub-criterias in developing and strengthening water user cooperatives.

  17. Bibliometric Analysis of Anatolia Turizm Araştırmaları Dergisi: An Analysis of Research Subjects and Institutional Collabration through Social Network Analysis

    Directory of Open Access Journals (Sweden)

    Deniz Karagöz

    2014-03-01

    Full Text Available Research subjects and collaboration between universities are important knowledge fields about forms of knowledge networks structures in a scientific community and flow of knowledge traffic. The aims of this study revealed to tourism knowledge network structure and institutional collaboration and examined to the roles of research subjects and collaboration into tourism network structure based on published articles in Anatolia Turizm Araştırmaları Dergisi. The data was collected from refereed articles in Anatolia Turizm Araştırmaları Dergisi between years of 1997-2010. Social Network Analysis is used to define network structure and to examine links between structures. For that purpose, UCINET and Netdraw programs were utilized. At the end of this study, tourism knowledge structure generally has central structure rather than interdisciplinary structure. Management, marketing, economy, education, accounting-finance, health and transportation research subjects are to be linked with each other rather than other research subjects. In this research, institutional collaborations are determined in low degree. In addition important roles are determined of University of Dokuz Eylül, University of Gazi and University of Mersin at institutional collaboration and separation of knowledge to other universities.

  18. Conhecimento e uso de plantas em uma comunidade caiçara do litoral sul do Estado do Rio de Janeiro, Brasil Knowledge and use of plants in a Caiçara community located on the southern coast of Rio de Janeiro State, Brazil

    Directory of Open Access Journals (Sweden)

    Rodrigo Borges

    2009-09-01

    Full Text Available A Área de Proteção Ambiental de Cairuçu (APA localiza-se no município de Paraty, RJ. É uma unidade de conservação de uso sustentável e dispõe-se a proteger o ambiente natural e as comunidades caiçaras da região. O objetivo deste estudo foi realizar um inventário etnobotânico das plantas conhecidas e utilizadas pela comunidade caiçara que habita a praia de Martim de Sá. Moram no local 30 pessoas das quais 10 foram entrevistadas. As informações etnobotânicas foram obtidas através da observação participante e entrevistas semi-estruturadas. O material botânico coletado foi depositado no Herbário do Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (RB. Foram identificadas 76 espécies pertencentes a 59 gêneros e 30 famílias botânicas consideradas úteis pelos caiçaras. As três espécies mais citadas foram: Sloanea obtusifolia (Sapopema, Scherolobium denudatum (Ingá-ferro e Balizia pedicelaris (Timbuíba. Utilizou-se o Índice de Shannon (H' = 1,81 - base 10 para a análise da diversidade de espécies. O registro sobre o uso dos recursos vegetais na comunidade estudada fornece informações que podem ser utilizadas para programas de conservação baseados no conhecimento local do ambiente.The Cairuçu Environmental Protection Area (APA was created to help assure the protection of the natural environment and its sustainable use by the caiçara communities in the region. This work presents an ethnobotanical inventory of the plants known and used by the caiçara community living on Martim de Sá beach in Paraty municipality, RJ. Thirty people live in the locality and ten of them were interviewed. Ethnobotanical information was obtained through participatory observations and semi-structured interviews with the local residents. All botanical material collected was deposited in the herbarium of the Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (RB. A total of 76 species belonging to 59 genera and 30

  19. Influencia de la radiación UV en las propiedades mecánicas y en el comportamiento en fractura de un polimero artificial bioinspirado en la seda de araña

    OpenAIRE

    Perea Abarca, Gracia Belén; Guinea Tortuero, Gustavo V.; Pérez Rigueiro, José; Plaza Baonza, Gustavo Ramón; Karatzas, C.; Elices Calafat, Manuel

    2011-01-01

    En el presente trabajo se estudia la influencia de la radiación UV sobre las propiedades mecánicas y las superficies de fractura de un polímero artificial bioinspirado en la seda de araña. Las fibras de seda de araña constituyen un material enormemente atractivo ya que su elevada resistencia y deformabilidad lo convierten en el material con mayor trabajo hasta rotura de los conocidos hasta el momento. Además se ha encontrado que posee una elevada biocompatibilidad y un comportamiento biod...

  20. Efecto de las arañas (Arachnida: Araneae como depredadoras de insectos plaga en cultivos de alfalfa (Medicago sativa (Fabaceae en Argentina

    Directory of Open Access Journals (Sweden)

    Andrea Armendano

    2011-12-01

    Full Text Available Effect of spiders (Arachnida: Araneae as predators of insect pest in alfalfa crops (Medicago sativa (Fabaceae in Argentina. Spiders are predators that reduce insect pest populations in agroecosystems. Trials were conducted to measure the selectivity against different insect preys, the daily consumption, effect of predators alone and together with a known number of preys, and the indirect effect of predators on vegetation. For this, experimental units (1x1m were used covered with a fine plastic mesh. Misumenops pallidus, Oxyopes salticus and Araneus sp. were used as generalist predators, and aphids, weevils, locusts, chrysomelids and Lepidoptera larvae as their potential preys. Among the preys offered, the spiders preferred Lepidoptera larvae compared to the other two pests groups (weevils and aphids. The maximum consumption rate was of 93.33% for Lepidoptera larvae, 25.33% for aphids and 11.67% for weevils. The Q Index values for the three species of spiders showed a positive selectivity only for defoliating larvae. O. salticus showed the highest values of consumption rates while Rachiplusia nu was the most consumed. The maximum value of consumption in 24 hours was showed by O. salticus on R. nu (C=2.8. The association of several species of predatory spiders increased the total number of insects captured, and also showed that the addition of spiders caused a decrease in the number of leaves damaged by the effect of lepidopterous larvae. Rev. Biol. Trop. 59 (4: 1651-1662. Epub 2011 December 01Las arañas son depredadoras capaces de reducir las poblaciones de insectos plaga en agroecosistemas. Para medir la selectividad frente a distintas presas, se realizaron ensayos de consumo diario, efecto de los depredadores aisladamente y en conjunto sobre el número de presas y efecto indirecto de los depredadores sobre la vegetación; se utilizaron jaulas experimentales de 1x1m cubiertas con una fina malla plástica. Misumenops pallidus, Oxyopes salticus y

  1. Repetibilidade de caracteres de fruto em araçazeiro e pitangueira Repeatability traits of strawberry guava and surinam cherry fruits

    Directory of Open Access Journals (Sweden)

    Moeses Andrigo Danner

    2010-10-01

    Full Text Available O objetivo deste trabalho foi estimar a repetibilidade de carateres de fruto em araçazeiro e pitangueira. Foram avaliados, em quatro ciclos produtivos, os caracteres peso, diâmetro, sólidos solúveis totais e produção de frutos em 10 seleções de araçazeiro e peso, diâmetro e sólidos solúveis totais em nove seleções de pitangueira, do Banco de Germoplasma da Embrapa Clima Temperado, em Pelotas-RS. O coeficiente de repetibilidade, o número de medições necessárias e o coeficiente de determinação foram estimados pelos métodos de análise de variância, componentes principais e análise estrutural. O coeficiente de repetibilidade foi mais eficientemente estimado pelo método dos componentes principais, com base na matriz de covariâncias. O caractere peso de fruto é mais adequado para ser utilizado na seleção fenotípica em araçazeiro e pitangueira. É necessária apenas uma medição para predizer o valor de peso de fruto de genótipos de araçazeiro, com 90% de acurácia. Com quatro anos de avaliação, é possível inferir o valor real com confiabilidade acima de 80% para todos os caracteres. Isso facilita a seleção fenotípica para esses caracteres em programas de melhoramento de araçazeiro e pitangueira.The aim of this research was to estimate the repeatability traits of strawberry guava and surinam cherry fruits. It was evaluated in four productive cycles, the traits weight, diameter, total soluble solids and fruit production in ten selection of strawberry guava and weight, diameter and total soluble solids in nine selection of surinam cherry from the Germplasm Bank of the Embrapa Clima Temperado, in Pelotas-RS, Brazil. The repeatability coefficient, minimum observations number and determination coefficient were estimated by analysis of variance, principal components analysis and structural analysis. The repeatability coefficient was better estimated by the method of principal components analysis, based on covariance

  2. Changes in the physicochemical and microbiological properties of frozen araça pulp during storage Alterações físico-químicas e microbiológicas de polpa congelada de araçá durante a estocagem

    Directory of Open Access Journals (Sweden)

    Clarissa Damiani

    2013-02-01

    Full Text Available Araça belongs to the Myrtaceae family and is popularly known as araçá-comum, araçá-azedo, or araçá-do-campo. Frozen fruit pulp is of great importance for the food industry, which can produce it at the time of harvest, store it, and use it according to the demand of the consumer market and/or as an ingredient in the formulation of products such as yogurt, candies, and ice creams among others. The aim of this study was to evaluate the physical, chemical, and microbiological stability of frozen araça pulp during 12 months of frozen storage. It was observed that the levels of moisture (90.55-88.75%, ash (0.34-0.26% total soluble sugars (7.11-6.62%, sucrose (3.55-1.39%, soluble pectin (0.24-0.23%, total pectin (0.5-0.46%, pH (3.82-2.31%, organic acids (698.12-122.25 µg.g-1 citric acid, and phenolic compounds (6.22-0.00 mg GAE.100 g-1 decreased during storage, whereas the levels of protein (0.61-0.83%, lipids (0.14-0.38%, total carbohydrates (8.36-9.78%, calorific value (37.14-45.86 kcal.100 g-1, reducing sugars (3.51-5.21%, soluble solids (5.17-6.0%, total antioxidant capacity (6.89-35.13%, and color parameters (L*49.75-50.67; a*0.79-1.82 and b*22.5-25.19 increased over the one-year storage period. According to the chemical and microbiological parameters assessed, the product can be stored for 12 months without loss of quality with addition of citric acid as a preservative.O araçá pertence à família Myrtaceae, sendo conhecido popularmente como araçá-comum, araçá-azedo ou araçá-do-campo. Polpas de frutas congeladas têm grande importância para a indústria de alimentos, que podem produzi-las na época de safra, armazená-las e utilizá-las conforme a demanda do mercado consumidor e/ou como parte da formulação de produtos como iogurtes, doces, gelados comestíveis, entre outros. Objetivou-se avaliar a estabilidade física, química e microbiológica de polpa de araçá durante o período de 12 meses de armazenamento sob

  3. Dini Sosyalleşme: Etki Kaynakları ve Araçların Etkileri Religious Socialization Sources of Influence and Influences of Agency

    Directory of Open Access Journals (Sweden)

    Darren Sherkat

    2013-03-01

    zneleriyle etkileşim içinde olurlar vebu bireyler, organizasyonlar ve tecrübe kanalları inanç ve anlayışları kionlar da dini tercihleri oluştururlar ve bu tercihler diniorganizasyonlara sorumluluklarını gösterme adına yardım ederler. Eğersosyalleşme kaynakları güvenilir ve değerli bağlantı sağlıyorsasosyalleşme araçları bireyleri etkiler ve eğer kaynakların dini inançlarıbelirgin ise yaşantılar da dini anlayışları pekiştirir. Bireylersosyalleşmenin baskısını reddetmek ve hangi araçların dini tecrübelere(tercihlere rehberlik ettiğini seçmek için ciddi araçlara sahiptirler.Sosyalizasyon ajanları ile temasın zamansal sıralaması da açıkçaönemlidir. Bireylerin dini sosyalleşmesinde aile, okul, din kurumları(cami, kilise, arkadaş grubu ve medya etkili faktörler olarak öneçıkmaktadır. Bu çalışmada yazar öncelikle dini sosyalleşme ve dini etkiçalışmalarının teorik temellerilerine dikkatle eğilerek başlıyor. Ardındanözellikle dini tercihlerin niteliğini ve bu tercihlerdeki değişikliğin iç vedış dinamiklerini sosyal hareketler ve din sosyolojisi konusundakiçağdaş kuram ve araştırmaları üzerine bir çerçeve çizerek devam ediyor.Sosyal araştırma ve din araştırmaları alanındaki bağlar çok ideolojikolarak yapılandırılmış kollektif eyleme doğru sosyalleşme üstündebütüncül bir perspektif elde etmek için çok önemlidir. Daha sonrayazar, alanla ilgili yapılan çalışmalarda değişik sosyalleşme araçlarınınetkisini gözden geçiriyor. Nihayet, gelecekte sosyalleşme üzerineyapılacak çalışmalar için konuya ilişkin bakış açılarının geneldeğerlendirmesini ve onların din sosyolojisindeki önemli teorikçalışmalar içinde nereye oturacağına dair fikirler ileri sürüyor.

  4. Çocuklar İçin Felsefe Eğitimi Üzerine Nitel Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Nihan Akkocaoğlu Çayır

    2016-04-01

    Full Text Available Çocuklar için felsefe çocukların, bir metin, öykü ya da örnek olaydan yola çıkarak bilgi, doğru, gerçek, güzel, adalet gibi felsefi kavramları bir yetişkin rehberliğinde tartışmalarıdır. Bu araştırma çocuklar için felsefe eğitiminin, ilkokul üçüncü sınıf öğrencilerini bilişsel, duyuşsal ve sosyal alanlarda nasıl etkilediğini tespit etmek amacıyla on dört hafta toplam yirmi sekiz saat sürecinde nitel araştırma yöntemi kullanılarak yürütülmüştür. Çocuklarla felsefe yapmak üzere hazırlanan ders planları iki ayrı sınıfta, kırk sekiz öğrenciye, iki öğretmen tarafından uygulanmıştır. Süreç sonunda öğrencilerde bilişsel alanda, felsefe, felsefe soruları ve filozofların özelliklerini anlama, kavramlar arası ilişki kurma, kavramları günlük hayatla ilişkilendirme, düşünme hatalarını kavrama, düşünmeye yönelme, farklı açılardan düşünme gibi değişimler gözlemlenmiştir. Duyuşsal alanda ise filozoflardan, felsefeden hoşlanma ve kavramlara yönelik farkındalıklar söz konusu olmuştur. Sosyal alanda ise öğrencilerin sorun çözme ve birbirlerini tanımaları noktasında değişimler yaşanmıştır. Çocuklar için felsefe, okul öncesinden liseye kadar farklı yaş düzeylerindeki pek çok dersin programlarıyla bütünleştirilebilir ya da ayrı bir ders olarak okutulabilir.

  5. Genetic Interaction of Aspergillus nidulans galR, xlnR and araR in Regulating D-Galactose and L-Arabinose Release and Catabolism Gene Expression

    NARCIS (Netherlands)

    Kowalczyk, Joanna E; Gruben, Birgit S; Battaglia, Evy; Wiebenga, Ad; Majoor, Eline; de Vries, Ronald P

    2015-01-01

    In Aspergillus nidulans, the xylanolytic regulator XlnR and the arabinanolytic regulator AraR co-regulate pentose catabolism. In nature, the pentose sugars D-xylose and L-arabinose are both main building blocks of the polysaccharide arabinoxylan. In pectin and arabinogalactan, these two monosacchari

  6. Örgütsel İmaj ve Örgüt Kültürü: Öğretmen Adayı Örnekleminde Nedensel Bir Araştırma

    OpenAIRE

    BEKTAŞ, FATİH

    2010-01-01

    Bu araştırmada örgütsel imajın örgüt kültürüne olan etkisinin öğretmen adayı algılarına dayalı olarak belirlenmesi amaçlanmıştır. Bu nedenle araştırma nedensel desen kullanılarak tasarlanmıştır. Araştırmanın evreni, 2009-2010 öğretim yılı bahar yarıyılında Atatürk Üniversitesi Kazım Karabekir Eğitim Fakültesinde öğrenim gören öğretmen adaylarından oluşmaktadır. Araştırmanın örneklemi, ilgili fakültenin ilköğretim bölümü sınıf, ilköğretim matematik, okul öncesi, fen bilgisi ve sosyal bilg...

  7. Research Methods Used in Library and Information Science Theses: An Evaluation Kütüphanecilik ve Bilgi Bilim Tezlerinde Kullanılan Bilimsel Araştırma Yöntemleri : Bir Değerlendirme

    Directory of Open Access Journals (Sweden)

    S. Serap Kurbanoğlu

    1996-12-01

    Full Text Available A literature analysis and an evaluation are made on the findings of researches which examine the research methods employed in library science and information science dissertations. The data suggest some changes regarding to research methods used in library science dissertations. Separate examinations of library science dissertations and information science dissertations suggest that there are differences as much assimilarities between these sister disciplines. Kütüphanecilik ve bilgi bilim tezlerinde kullanılan araştırma yöntemleri konusunda yapılan araştırmaların bulguları üzerine bir literatür çalışması ve bir değerlendirme yapılmıştır. Bulgular kütüphanecilik tezlerinde kullanılan araştırma yöntemleri konusunda zaman içinde bir çeşitlenme olduğunu göstermektedir. Kütüphanecilik ve bilgi bilim tezleri üzerinde ayrı ayrı yürütülen incelemeler ise bu iki kardeş disiplin arasında benzerlikler kadar farklılıklar da olduğunu ortaya koymaktadır.

  8. Annelerin Ebeveynlik Öz Yeterlik Algıları ile Gelişimi Risk Altında Olan Bebeklerin Gelişimleri Arasındaki İlişkiyi İnceleyen Araştırmalara Bir Bakış

    Directory of Open Access Journals (Sweden)

    Veysel Aksoy

    2009-01-01

    Full Text Available Bu çalışmanın amacı, ebeveynlerin (özellikle annelerin öz yeterlik düzeyleri ile çocuklarının erken çocukluk dönemindeki gelişimleri arasındaki ilişkiyi inceleyen araştırmaları gözden geçirmektir. Bu amaçla betimsel alan yazın taraması yapılmıştır. Ele alınan makalelerdeki bulgular, annelerin sahip olduğu ebeveyn öz yeterlik algısının düzeyi ile çocukların bilişsel, sosyal ve dil gelişimleri arasında ilişki olduğunu göstermektedir. Ayrıca ebeveynlik öz yeterlik düzeyleri sosyo-ekonomik durum, sosyal destekler, bekâr anne olma ve annelik yaşı gibi değişkenlerden etkilenmektedir. Annelerin öz yeterlikleriyle çocuğun problem davranışları, annelik depresyonu ve stresi gibi değişkenler arasında da ilişkiler olduğu çalışmalarda rapor edilmiştir. The purpose of this study is to overview studies on relationship between the parental self-efficacy levels (especially mothers’ self-efficacy and development of their young children. For this purpose, a narrative literature review was carried out. Based on the review of the literature, it is observed that there are relationships between the parental self-efficacy and children’s cognitive, social and language development. Moreover, parental self-efficacy level is affected by some variables such as socio-economical condition, social supports, being a single mother and mother’s age. Also, studies pointed out that there is a relationship between selfefficacy levels of mothers and child’s problem behaviors, maternal depression and stress.

  9. Observação da germinação de sementes de araçá-pêra (Psidium acutangillum D. C.)

    OpenAIRE

    Ferreira,Sidney Alberto do Nascimento

    1982-01-01

    Resumo Este ensaio tem por objetivo apresentar dados referentes ao. período de germinação de sementes de araçá-pêra (Psidium acutangulum D.C.) ao mesmo tempo em que compara a utilização de diferentes substratos: areia, terriço e serragem. O delineamento estatístico foi de experimento inteiramente casualizado com três repetições. Os parâmetros avaliados foram: início e estabilização da germinação; porcentagem fina! de germinação; índice de velocidade de germinação; e altura total das plântulas...

  10. Morfologia e sedimentologia da plataforma continental brasileira adjacente a São Bento do Norte e Caiçara do Norte-RN/NE-Brasil

    OpenAIRE

    Tabosa, Werner Farkatt

    2006-01-01

    Esta dissertação apresenta os resultados de uma pesquisa desenvolvida na região de São Bento do Norte e Caiçara do Norte, litoral setentrional do Estado do Rio Grande do Norte, durante o período de Junho de 2000 a Agosto de 2001, no âmbito dos projetos MAMBMARÉ (CNPq/CTPETRO) e PROBRAL (CAPES/DAAD). O objetivo principal da pesquisa foi a caracterização da dinâmica sedimentar do litoral em questão, com base em dados relativos à dinâmica costeira (ventos, correntes, ondas e marés), levantamento...

  11. Türkiye’de 1980-2014 Yılları Arasında Görülen Depremlerin Ekonomik Etkileri

    OpenAIRE

    Şahin, İsmail; Kılınç, Tuğba

    2016-01-01

    Türkiye jeopolitik konumu itibari ile birçok afete maruz kalmaktadır. Bunlar başta deprem olmak üzere sel, heyelan toprak kayması, çığ gibi afetlerdir. Türkiye’de en kötü etki bırakan afet depremlerdir. Topraklarının %93’ü, nüfusunun ise %98’i çeşitli derecelerde deprem etkisi altında olan ülkemizde, depremler can ve mal kayıplarına sebep olmakla beraber ülke ekonomisini oldukça etkilemektedir. Bu çalışmada Türkiye’nin depremselliği ve 1980 ile 2014 yılları arasında görülen depremlerin ekonom...

  12. 1.65 Å resolution structure of the AraC-family transcriptional activator ToxT from Vibrio cholerae.

    Science.gov (United States)

    Li, Jiaqin; Wehmeyer, Graham; Lovell, Scott; Battaile, Kevin P; Egan, Susan M

    2016-09-01

    ToxT is an AraC-family transcriptional activator protein that controls the expression of key virulence factors in Vibrio cholerae, the causative agent of cholera. ToxT directly activates the expression of the genes that encode the toxin-coregulated pilus and cholera toxin, and also positively auto-regulates its own expression from the tcp promoter. The crystal structure of ToxT has previously been solved at 1.9 Å resolution (PDB entry 3gbg). In this study, a crystal structure of ToxT at 1.65 Å resolution with a similar overall structure to the previously determined structure is reported. However, there are distinct differences between the two structures, particularly in the region that extends from Asp101 to Glu110. This region, which can influence ToxT activity but was disordered in the previous structure, can be traced entirely in the current structure.

  13. Two cryptic anatectic events within a syn-collisional granitoid from the Araçuaí orogen (southeastern Brazil): Evidence from the polymetamorphic Carlos Chagas batholith

    Science.gov (United States)

    Melo, M. G.; Stevens, G.; Lana, C.; Pedrosa-Soares, A. C.; Frei, D.; Alkmim, F. F.; Alkmin, L. A.

    2017-04-01

    From the earliest (ca. 630 Ma) pre-collisional plutons to the latest (ca. 480 Ma) post-collisional intrusions, the Araçuaí orogen (SE Brazil) records an outstanding succession of granite production events in space and time. The Carlos Chagas batholith (CCB) is the largest ( 14,000 km2) granitic body ascribed to the collisional plutonism (G2 supersuite) in the back-arc region of the Araçuaí orogen, to the east of the Rio Doce magmatic arc. A wide range of monazite and zircon ages (> 725 Ma to ca. 490 Ma) have been found in CCB granites, recording a rich history of crustal recycling and inheritance, magmatic crystallization and anatexis. The CCB includes a dominant granite richer in garnet than in biotite, in which three mineral assemblages can be identified: 1) Qz + Pl + Kfs + Bt + Grt + Ilm ± Rt; 2) Qz + Pl + Kfs + Bt + Grt + Ilm + Sil; and 3) Qz + Pl + Kfs + Bt + Grt + Ilm + Sil + Spl. Rocks which contain mineral assemblage 2 and 3 all contain two generations of garnet. Textural evidence for the presence of former melt, recognized in all studied CCB samples, includes: silicate melt inclusions in poikiloblastic garnet, pseudomorphed thin films of melt surrounding both generations of garnet, pseudomorphed melt pools adjacent to garnet and biotite, and plagioclase and quartz with cuspate-lobate shapes occurring among matrix grains. Both generations of garnet crystals (Grt1 and Grt2) are unzoned in terms of major element concentration, contain small rounded inclusions of Ti-rich biotite and, in addition, the Grt2 crystals also contain inclusions of remnant sillimanite needles. Microstructural evidence, in combination with mineral chemistry, indicates that the garnet crystals grew during two distinct metamorphic-anatectic events, as the peritectic products of fluid-absent melting reactions which consumed biotite, quartz and plagioclase, in the case of Grt1, and which consumed biotite, quartz, plagioclase and sillimanite in the case of Grt2. P-T pseudosections

  14. Efecto de la Longitud de onda de la radiación UV sobre la seda de araña

    OpenAIRE

    Perea Abarca, Gracia Belén; Pérez Rigueiro, José; Plaza Baonza, Gustavo Ramón; Guinea Tortuero, Gustavo V.; Elices Calafat, Manuel

    2010-01-01

    En el presente trabajo se continúa el análisis de la influencia de la radiación UV sobre las propiedades mecánicas de las fibras de seda de araña. Para ello se ha empleado la seda producida por la glándula ampollácea mayor de la especie Argiope trifasciata y se ha estudiado el comportamiento en tracción simple de fibras de seda sometidas a diferentes tiempos de irradiación con luz UV de longitudes de onda de 254, 312 y 365 nm. Se ha encontrado que la radiación ultravioleta disminuye la te...

  15. A formação salinas da faixa Araçuaí, MG: acervo estrutural e significado tectônico.

    OpenAIRE

    Santos, Reginato Fernandes dos

    2007-01-01

    A Formação Salinas, unidade supracrustal mais jovem até o presente encontrada no Orógeno Araçuaí, tem como principal área de ocorrência as vizinhanças da cidade homônima no norte de Minas Gerais. Naquela região, está exposta em uma faixa de orientação meridiana e largura média de 25 km, jaz em discordância sobre rochas do Grupo Macaúbas situadas a oeste e é intrudida por corpos graníticos das Suítes G4 e G5, a leste. Tendo como objetivos a caracterização do acervo estrutural e da históri...

  16. Una huella de Rogier Van der Weyden en la obra de Bernart de Aras, “pintor vecino de la ciudat de Huesca”

    Directory of Open Access Journals (Sweden)

    Martens, Didier

    2008-03-01

    Full Text Available In 1461, the Aragonese painter Bernart de Aras was commissioned to paint an altarpiece for the small church of Pompién (Huesca. This altarpiece, completed two years later, could still be seen in its original location in 1936. Today, only four panels from the retable are preserved in the storerooms of the Museu d’Art de Catalunya in Barcelona. The central panel consists of a Madonna Enthroned with Child. Both of these figures clearly reflect the artist’s familiarity with the Madonna Durán, one of Rogier van der Weyden’s (1399/ 1400-1464 most famous pictures, now hanging in the Museo Nacional del Prado in Madrid. Therefore, it can be claimed that Rogier’s work was already known in Spain during his lifetime.

    En 1461, el pintor aragonés Bernart de Aras recibe el encargo de realizar un retablo para la pequeña iglesia de Pompién (Huesca. Terminado en 1463, este retablo, que se mantenía todavía en su emplazamiento original en 1936 y del que una parte se conserva actualmente en el Museu Nacional d’Art de Catalunya en Barcelona, presentaba, en la tabla central, una Virgen entronizada con el Niño. Estas dos figuras no constituyen una creación del artista, sino que las tomó de una obra famosa de Rogier van der Weyden (1399/1400-1464: la Madona Durán, hoy conservada en el Museo Nacional del Prado. Esta tabla del pintor bruselense era, por lo tanto, ya conocida en la Península Ibérica en 1461-1463, es decir, en vida del artista.

  17. Üniversite Öğrencilerinin Bilgi Okuryazarlığı Becerilerindeki Zorlanma Düzeyleri Üzerine Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Coşkun Polat

    2005-12-01

    Full Text Available Information Literacy is the set of skills needed to fnd, retrieve, analyze, and use Information from a variety of sources. Educational institutions have the primary responsibility for providing the students with these skills. In this regard universities have to develop Information literacy programs to equip students with the Information and skills reauired. This study examines the challenges that the students faced in terms of Information literacy related issues. A questionnaire was applied to 262 post graduate students of Hacettepe University in order to collect the data for this study. Collected data were analyzed by using "t-test" and "one-way variant analysis" methods. Bilgi okuryazarlığı, değişik formatlardaki bilginin bulunması, erişilmesi, değerlendirilmesi, kullanılması ve iletilmesi becerileridir. Bu becerilerin kazandırılmasında eğitim kurumları öncelikli sorumludurlar. Üniversiteler de bu becerileri öğrencilere kazandırmak için bilgi okuryazarlığı programları geliştirmelidirler. Bu çalışmada üniversite öğrencilerinin bilgi okuryazarlığına ilişkin konulardaki zorlanma düzeyleri araştırılmıştır. Araştırma kapsamında Hacettepe Üniversitesi (HÜ 'nde 2003-2004 öğretim yılı itibariyle yüksek lisans öğrenimlerine devam eden 262 kişiye anket uygulanmıştır. Verilerin değerlendirilimesinde "t testi" ve "varyans analizi" kullanılmıştır.

  18. Cartas y dibujos acerca de una inscripción romana desaparecida: el ara de Trabanca (Vilagarcía de Arousa

    Directory of Open Access Journals (Sweden)

    Santos Fernández, Carlos

    2016-12-01

    Full Text Available Edition and study of five documents (three letters and two drawings signed by Juan Fernández Gil y Casal, 1909 - 1917, reveal the complete text, the physical characteristics as well as the circumstances of the discovery of a Roman altar that was found in 1890 in Trabanca da Torre (Vilagarcía de Arousa, Pontevedra, that disappeared before 1909. This early disappearance leads some researchers to question their existence, and it also explains the news that were published in the twentieth century about the altar which have been limited to tangential references or incomplete transcriptions, without any attention to the physical characteristics of the piece. The only aim of this collaboration, which excludes reviews or textual interpretations, is to present the five documents (four that are not still published and another one that has been recently published in 2012 which are preserved in Museo do Pobo Galego, Real Academia Galega and Museo de Pontevedra, documents that can serve as an indirect source for the study of Trabanca’s altar stone until its recovery as we hope.Edición y estudio de cinco documentos (tres cartas y dos dibujos firmados por Juan Fernández Gil y Casal entre 1909 y 1917 que proporcionan el texto íntegro, las características del soporte y las circunstancias del hallazgo del ara de Trabanca da Torre (Vilagarcía de Arousa, Pontevedra, encontrada hacia 1890 y que en 1909 ya se consideraba perdida. La temprana desaparición del ara –que indujo a algunos investigadores a poner en duda su existencia–, explica que lo publicado a lo largo del siglo XX acerca de esta pieza se limite a referencias tangenciales (la de García de la Riega, en 1904, para apuntalar su tesis helenística en la polémica entre celtófobos y celtómanos, o a lecturas parciales y sin atención a las características del soporte. La única finalidad de esta colaboración, al margen de relecturas epigráficas o interpretaciones del texto, es dar a conocer

  19. Ders çalışma becerileri ile akademik risk alma arasındaki ilişkinin kanonik korelasyon ile incelenmesi [An investigation of the relationship between study skills and academic risk taking with canonical correlation

    Directory of Open Access Journals (Sweden)

    Mustafa İLHAN

    2013-10-01

    Full Text Available Bu araştırmada ders çalışma becerileri ile akademik risk alma arasındaki ilişkinin incelenmesi amaçlanmıştır. Bu amaca uygun olarak araştırmada ilişkisel tarama modeli kullanılmıştır. Araştırmanın çalışma grubunu, 2011-2012 Öğretim Yılı Güz Dönemi’nde Siirt Üniversitesi Eğitim Fakültesi’nde öğrenim gören 221 üniversite öğrencisi oluşturmaktadır. Araştırmada öğrencilerin ders çalışma becerilerini ölçmek için Bay, Tuğluk ve Gençdoğan (2004 tarafından geliştirilen “Ders Çalışma Becerileri Ölçeği” kullanılmıştır. Öğrencilerin akademik risk alma davranışlarını ölçmek amacıyla ise Clifford (1991 tarafından geliştirilen ve Korkmaz (2002 tarafından Türkçe’ye uyarlanan “Akademik Risk Alma Ölçeği” kullanılmıştır. Araştırmada motivasyon, zaman yönetimi ve sınava hazırlanma-sınav kaygısı yönetimi değişkenlerinden oluşan ders çalışma becerileri veri seti ile başarısızlık sonrası olumsuzluk eğilimi, güç işlemleri tercih etme eğilimi, başarısızlık sonrası yeniden toparlanma ve etkin olma eğilimi ve ödev yapmama eğilimi değişkenlerinden oluşan akademik risk alma veri seti arasındaki ilişki kanonik korelasyon analizi ile incelenmiştir. Kanonik korelasyon analizi sonucunda, ders çalışma becerileri ve akademik risk alma arasında anlamlı ilişki tespit edilmiş ve veri setleri arasında paylaşılan ortak varyansın % 29.5 olduğu saptanmıştır.

  20. Kişilik ve Şiddet İlişkisi Üzerine Bir Psikolojik Araştırma

    Directory of Open Access Journals (Sweden)

    Mustafa ULU

    2016-12-01

    Full Text Available Şiddet konusu üzerine yapılan araştırmaların ortak vurgusu şiddetin son derece karmaşık ve çok boyutlu bir olgu olduğudur. Bu çalışma ile de şiddete ilişkin boyutlardan birisi olduğu varsayılan kişilik özellikleri üzerinde durulacaktır. Bu anlamda ilk olarak şiddet kavramı ortaya konulmaya çalışılacak ve literatür değerlendirmesine yer verilecektir. Sonrasında ise kişilik konusuna değinilecek ve kişilik konusunda ortaya çıkan yaklaşımlar tartışılacaktır. Daha sonra her iki değişken arasındaki ilişki üzerine gerçekleştirilen araştırmaya ilişkin istatistiksel analizler ve sonuçlarına yer verilecektir. Son olarak ise araştırma verilerinin değerlendirildiği sonuç bölümü ile çalışma tamamlanacaktır. Bu çalışma da lise düzeyinde öğrenim gören gençler arasında şiddet ile kişilik özellikleri arasında bir ilişki olup olmadığını ve eğer böyle bir ilişki söz konusu ise kişilik grupları arasında şiddete en yatkın grubun belirlenmesini amaçlamaktadır. Araştırmada Kayseri ilindeki devlet okullarında öğrenim gören 587 Lise öğrencisi üzerinde anket yöntemi ile veri toplanmıştır. Şiddete eğilimin ölçülmesinde Haskan ve Yıldırım (2012 tarafından geliştirilen ‘Şiddet Eğilimi Ölçeği’; kişilik özelliklerinin belirlenmesinde ise ‘Beş Etmen Teorisi’ kullanılmıştır. Verilerin çözümlenmesinde ve analiz edilmesinde bağımsız örneklem t testi kullanılmıştır. Ayrıca ortalamalar arasında anlamlılık seviyesinde ilişkilerin olup olmadığının belirlenmesi için Tek yönlü ANOVA tekniğine başvurulmuştur. Introduction and Purpose of the Study Despite the rules established to allow people and societies to coexist and live in a system and the predictions of "reducing the incidence of violence" with the development of civilizations and societies, injustice, murder, violence and terror continue to exist even at different

  1. Caracterização fisico-química e sensorial de geleia de mamão com araçá-boi

    Directory of Open Access Journals (Sweden)

    Eliseth de Souza Viana

    2012-12-01

    Full Text Available Foram elaboradas quatro formulações de geleia com as seguintes proporções de mamão (Carica papaya (M e araçá-boi (Eugenia stipitata (AB: F1 (70% M: 30% AB, F2 (60% M: 40% AB, F3 (40%M : 60% AB e F4 (30% M : 70% AB. Todas as formulações apresentaram proporção final de polpa e açúcar de 1:1, com 0,5% de pectina e teor de 65% de sólidos solúveis. As geleias foram analisadas quanto às características físico-químicas e sensoriais (teste de aceitação e preferência. O teste de aceitação foi realizado por 50 consumidores, por meio de escala hedônica de 7 pontos, avaliando-se os atributos: aparência, cor, aroma, sabor e textura. A acidez titulável variou entre 0,77 e 1,72 g de ácido cítrico100 g-1, estando dentro da faixa de acidez determinada para diferentes geleias de frutas. O teor de açúcares redutores foi mais elevado na formulação F4. As formulações apresentaram índice de aceitação acima de 90% para os atributos aparência, cor, aroma e textura. As formulações F1 e F2, com menores concentrações de araçá-boi, apresentaram maior aceitação para os atributos sensoriais cor e sabor. Entretanto, a formulação F1 apresentou elevada intenção de compra e foi considerada pelo mapa de preferência interno a mais aceita para todos os atributos avaliados, sendo, portanto, a mais adequada para a industrialização e consumo.

  2. İnternet’ten İzlenen Dizi ve Seriyallerin “Araç İletidir” ve “Kullanımlar Doyumlar” Bağlamında İncelenmesi

    OpenAIRE

    ÇÖTELİ, Sami

    2016-01-01

    Televizyon izleme pratikleri arasında önemli yere sahip olan dizi film ve seriyallerin İnternet ortamından izlenebilir olması beraberinde akla şu soruyu getiriyor: “İnternet, dizi film ve seriyallerin izlenmesi bakımından doğru bir medya mıdır?” Dizi film ve seriyallerin İnternet üzerinden izlenmesi ile yayın aracına müdahale edilmiş olur ve araçlar bozuma uğrar. Oysaki dizi ve seriyallerin anlatı yapısında bölümü dorukta sonlandırma, izleyiciyi meraklandırma ve gündelik sohbetlere konu olma ...

  3. Toplu Beslenme Yapan Kurumlarda Ekmek Tüketimi, Atımı ve İsrafın Önlenmesi Konusunda Alınacak Önlemlerle İlgili bir Araştırma

    OpenAIRE

    Arslan, Perihan; Yüksel, Aşkın

    2014-01-01

    Araştırma Mart 1984 tarihinde Ankara il sınırları içinde bulunan maden Tetkik ve Araştırma Enstitüsünde (M.T.A.) yemek yiyen 193 memur ve 107 işçi olmak üzere toplam 300 kişi üzerinde yapılmıştır. Kurumada günde 630 kg ekmek alınmaktadır. Bu ekmeğin personelde servis edilemeden artan miktarı günde ortalama olarak %11.1 olarak bulunmuştur.

  4. La cúpula de la iglesia cartujana de Ara Christi (El Puig, Valencia. Génesis, evolución y artífices de su construcción

    Directory of Open Access Journals (Sweden)

    Ferrer Orts, Albert

    2005-03-01

    Full Text Available The author offers a detailed account of the construction of the cupola of the Carthusian monastery of Ara Cristi in El Puig (Valencia from its conception in the sixteenth century through the various restorations it underwent in the seventeenth, and includes specific information on the artisans responsible for the distinct stages of construction.

    Se ofrece un pormenorizado relato de la construcción de la cúpula de la cartuja de Ara Christi, desde su concepción hasta las diversas reparaciones de las que fue objeto en el siglo xvii y se especifican los artífices de las diversas fases de su construcción.

  5. İzmir Körfezi'nde Hamsi (Engraulis encrasicolus L., 1758'nin Yaş ve Büyüme Özellikleri Üzerine Araştırmalar.

    Directory of Open Access Journals (Sweden)

    Dilek Uçkun

    2015-12-01

    Full Text Available Bu araştırmada, Ocak 1997-Aralık 1997 tarihleri arasında İzmir Körfezi’nden gırgır tekneleriyle avlanan balıkçılardan temin edilen 1161 adet hamsi (Engraulis encrasicolus, L., 1758 bireyi incelenmiştir. Örneklerin çatal boyları 6.2-14.0 cm ile ağırlıkları 1.46-22.47 g arasında değişmiştir. Dişi:erkek oranı 1:0.33 ve maksimum yaş III olarak tespit edilmiştir. En fazla bireye I yaş grubunda rastlanmıştır. Tüm bireyler için boy ve ağırlığa göre von Bertalanffy büyüme denklemleri Lt=14.93(1-e-0.628(t-0.710 Wt=26.17 (1-e-0.628(t-0.710değerleri dişi bireylerde 0.449-0.839, erkek bireylerde ise 0.550-0.864 arasında tespit edilmiştir. olarak bulunmuştur. Boy-ağırlık ilişkisi denklemi W=0.0057*L3.130 olarak hesaplanmıştır. Kondisyon faktörü

  6. The Qâdiriyya and The lineages of Qâdirî Shayikhs among the Kurds / Kadiriyye ve Kürtler Arasında Kadiriyye Kolları

    Directory of Open Access Journals (Sweden)

    Hür Mahmut YÜCER

    2013-03-01

    Full Text Available Bu makale, günümüzde Kuzey Irak, Güney Batı İran ve Türkiye'nin Doğu ve güneydoğusunda yerleşmiş bulunan Kürtler arasında Kadiriyye tarikatının yayılışı, kadiri kollarını incelemekdir.

  7. Cytoreductive treatment with clofarabine/ara-C combined with reduced-intensity conditioning and allogeneic stem cell transplantation in patients with high-risk, relapsed, or refractory acute myeloid leukemia and advanced myelodysplastic syndrome.

    Science.gov (United States)

    Buchholz, Stefanie; Dammann, Elke; Stadler, Michael; Krauter, Juergen; Beutel, Gernot; Trummer, Arne; Eder, Matthias; Ganser, Arnold

    2012-01-01

    The combination of cytoreductive chemotherapy with reduced-intensity conditioning (RIC) is a highly effective antileukemic therapy. Purpose of this retrospective analysis was to evaluate the antileukemic efficacy and toxicity of clofarabine-based chemotherapy followed by RIC and allogeneic stem cell transplantation (SCT) for high-risk, relapsed, or refractory acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). From May 2007 until October 2009, a total of 27 patients underwent allogeneic SCT after treatment with clofarabine and ara-C for 5d and RIC (4Gy TBI/cyclophosphamide/ATG). Prophylaxis of graft-versus-host disease (GvHD) consisted of cyclosporine and mycophenolate mofetil. Unmanipulated G-CSF mobilized PBSC (n=26) or bone marrow cells (n=1) were transplanted from unrelated (n=21) or matched related (n=6) donors. Non-hematological toxicities of this regimen mainly affected liver and skin and were all reversible. Seven patients relapsed within a median time of 5.7 months. The overall survival (OS) and relapse-free survival rates were 56% and 52% at 2 yr, respectively. In this cohort of patients, cytoreduction with clofarabine/ara-C (ClAraC) followed by RIC allogeneic SCT was well tolerated and showed good antileukemic efficacy even in patients with high-risk AML or MDS, with engraftment and GvHD-incidence comparable to other RIC regimens.

  8. Maddi Olmayan Varlıklar ve İşletme İçinde Yaratılan Maddi Olmayan Varlıklar ile İlgili Bir Araştırma

    OpenAIRE

    Ulusan, Hikmet

    2005-01-01

    Bu çalışmada, MOV’lar hakkında bilgi verilmeye ve MOV’ların sınıflandırılması, değerlemesi ve ölçümü ile kayıtlanması ve raporlanması konuları özetlenmeye çalışılmıştır. Ayrıca, işletme içinde yaratılan MOV’lar ile ilgili Kayseri’de faaliyet gösteren ve Türkiye’nin ilk 500 büyük şirketi arasına giren işletmeler üzerinde yapılan araştırmanın sonuçlarından da bahsedilmiştir. Bu araştırmada, işletmelerin MOV’ların ölçümü, kayıtlanması ve raporlanmasına pek önem vermedikleri sonucuna varılmıştır....

  9. Genetic Interaction of Aspergillus nidulans galR, xlnR and araR in Regulating D-Galactose and L-Arabinose Release and Catabolism Gene Expression.

    Science.gov (United States)

    Kowalczyk, Joanna E; Gruben, Birgit S; Battaglia, Evy; Wiebenga, Ad; Majoor, Eline; de Vries, Ronald P

    2015-01-01

    In Aspergillus nidulans, the xylanolytic regulator XlnR and the arabinanolytic regulator AraR co-regulate pentose catabolism. In nature, the pentose sugars D-xylose and L-arabinose are both main building blocks of the polysaccharide arabinoxylan. In pectin and arabinogalactan, these two monosaccharides are found in combination with D-galactose. GalR, the regulator that responds to the presence of D-galactose, regulates the D-galactose catabolic pathway. In this study we investigated the possible interaction between XlnR, AraR and GalR in pentose and/or D-galactose catabolism in A. nidulans. Growth phenotypes and metabolic gene expression profiles were studied in single, double and triple disruptant A. nidulans strains of the genes encoding these paralogous transcription factors. Our results demonstrate that AraR and XlnR not only control pentose catabolic pathway genes, but also genes of the oxido-reductive D-galactose catabolic pathway. This suggests an interaction between three transcriptional regulators in D-galactose catabolism. Conversely, GalR is not involved in regulation of pentose catabolism, but controls only genes of the oxido-reductive D-galactose catabolic pathway.

  10. Periodontal hastalıklar ile erken yaşlarda görülen ateroskleroza bağlı koroner hastalıklar arasındaki ilişkinin değerlendirilmesi

    OpenAIRE

    KARAGÖZ, Şükran

    2011-01-01

    Bu çalışmada erken yaşta (?50 yaş) koroner arter hastalığı (KAH) tanısı almış olan kişilerle aterosklerotik kardiyovasküler hastalığı olmayanlar arasında bazı periodontal parametreler ve bazı kan tahlili parametreleri bakımından kıyaslama yaparak, periodontal hastalık gibi enflamatuvar bir durumun erken yaşlarda ortaya çıkışı ile erken yaşlarda KAH gelişimi arasındaki olası ilişkinin değerlendirilmesi amaçlanmıştır.Çalışmamızda KAH tanısı almış, yaşları 31-50 arasında (or...

  11. Genetic Interaction of Aspergillus nidulans galR, xlnR and araR in Regulating D-Galactose and L-Arabinose Release and Catabolism Gene Expression.

    Directory of Open Access Journals (Sweden)

    Joanna E Kowalczyk

    Full Text Available In Aspergillus nidulans, the xylanolytic regulator XlnR and the arabinanolytic regulator AraR co-regulate pentose catabolism. In nature, the pentose sugars D-xylose and L-arabinose are both main building blocks of the polysaccharide arabinoxylan. In pectin and arabinogalactan, these two monosaccharides are found in combination with D-galactose. GalR, the regulator that responds to the presence of D-galactose, regulates the D-galactose catabolic pathway. In this study we investigated the possible interaction between XlnR, AraR and GalR in pentose and/or D-galactose catabolism in A. nidulans. Growth phenotypes and metabolic gene expression profiles were studied in single, double and triple disruptant A. nidulans strains of the genes encoding these paralogous transcription factors. Our results demonstrate that AraR and XlnR not only control pentose catabolic pathway genes, but also genes of the oxido-reductive D-galactose catabolic pathway. This suggests an interaction between three transcriptional regulators in D-galactose catabolism. Conversely, GalR is not involved in regulation of pentose catabolism, but controls only genes of the oxido-reductive D-galactose catabolic pathway.

  12. The influence of Aspergillus niger transcription factors AraR and XlnR in the gene expression during growth in D-xylose, L-arabinose and steam-exploded sugarcane bagasse.

    Science.gov (United States)

    de Souza, Wagner Rodrigo; Maitan-Alfenas, Gabriela Piccolo; de Gouvêa, Paula Fagundes; Brown, Neil Andrew; Savoldi, Marcela; Battaglia, Evy; Goldman, Maria Helena S; de Vries, Ronald P; Goldman, Gustavo Henrique

    2013-11-01

    The interest in the conversion of plant biomass to renewable fuels such as bioethanol has led to an increased investigation into the processes regulating biomass saccharification. The filamentous fungus Aspergillus niger is an important microorganism capable of producing a wide variety of plant biomass degrading enzymes. In A. niger the transcriptional activator XlnR and its close homolog, AraR, controls the main (hemi-)cellulolytic system responsible for plant polysaccharide degradation. Sugarcane is used worldwide as a feedstock for sugar and ethanol production, while the lignocellulosic residual bagasse can be used in different industrial applications, including ethanol production. The use of pentose sugars from hemicelluloses represents an opportunity to further increase production efficiencies. In the present study, we describe a global gene expression analysis of A. niger XlnR- and AraR-deficient mutant strains, grown on a D-xylose/L-arabinose monosaccharide mixture and steam-exploded sugarcane bagasse. Different gene sets of CAZy enzymes and sugar transporters were shown to be individually or dually regulated by XlnR and AraR, with XlnR appearing to be the major regulator on complex polysaccharides. Our study contributes to understanding of the complex regulatory mechanisms responsible for plant polysaccharide-degrading gene expression, and opens new possibilities for the engineering of fungi able to produce more efficient enzymatic cocktails to be used in biofuel production.

  13. FREQUÊNCIA DE OCORRÊNCIA E CARACTERÍSTICAS MORFOLÓGICAS EXTERNOS DE PEIXES MARINHOS DE CAIÇARA DO NORTE, RIO GRANDE DO NORTE, BRASIL

    Directory of Open Access Journals (Sweden)

    Marcelo Moreira Carvalho

    2014-08-01

    Full Text Available O litoral de Caiçara do Norte é considerado uma área de maior produção pesqueira artesanal do Rio Grande do Norte, Brasil. O objetivo deste estudo foi verificar a frequência de ocorrência, as características morfológicos externos de peixes marinhos de Caiçara do Norte, RN. Durante o período de julho de 2012 a agosto de 2013, foi registrada a ocorrência de cinco ordens (Beloniformes, Clupeiformes, Mugiliformes, Perciformes, Siluriformes, 13 famílias (Ariidae, Exocoetidae, Carangidae, Clupeidae, Coryphaenidae, Haemulidae, Hemiramphidae, Istiophoridae, Lutjanidae, Mugilidae, Sparidae, Serranidae,  Scombridae e 29 espécies de peixes marinhos. Os resultados do presente trabalho podem enriquecer o conhecimento da ictiofauna das águas costeiras de Caiçara do Norte, além de fornecer informações para o futuro planejamento da gestão e conservação dos recursos pesqueiros do litoral do Rio Grande do Norte, Brasil. Palavras chave: Águas costeiras; pesca artesanal; recursos pesqueiros; litoral norte do RN. DOI: http://dx.doi.org/10.18561/2179-5746/biotaamazonia.v4n2p55-63

  14. Drosophila Fed ARA and EPA Yields Eicosanoids, 15S-Hydroxy-5Z,8Z, 11Z, 13E-Eicosatetraenoic Acid, and 15S-Hydroxy-5Z,8Z,11Z,13E,17Z-Eicosapentaenoic Acid.

    Science.gov (United States)

    Tan, Liangliang; Xin, Xiaoxuan; Zhai, Liang; Shen, Lirong

    2016-04-01

    Drosophila melanogaster has been a widely used as a model system for its powerful genetic tools. However, it remains to be illustrated if Drosophila can be used to examine the biochemical and physiological metabolism of eicosanoids. Thus, the analysis on the metabolism of C20 polyunsaturated fatty acids (PUFA) in Drosophila was implemented with high performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). Fatty acid (FA) analysis of the whole body, head, and thorax-abdomen in Drosophila showed C20 PUFA could only be found in Drosophila fed diets supplemented with eicosapentaenoic acid (EPA) and arachidonic acid (ARA), but not in Drosophila fed base diets. The C20 PUFA were found in abundance in the head. Drosophila fed ARA- and EPA-supplemented diets yielded 15S-hydroxy-5Z,8Z,11Z,13E-eicosatetraenoic acid [15(S)-HETE] and 15S-hydroxy-5Z,8Z,11Z,13E,17Z-eicosapentaenoic acid [15(S)-HEPE], respectively, while other sampled eicosanoids could not be detected. Similar results were obtained by incubating fly tissue supplemented with ARA or EPA. Furthermore, a genome sequence scan indicated that no gene encoding the key enzymes synthesizing eicosanoids were found in Drosophila. These findings demonstrate that Drosophila may possess a special lipid metabolic system, which is different from mammals.

  15. 2-5 Yaş Arası Çocuklarda Erken Çocukluk Çürüklerine Neden Olan Risk Faktörleri

    OpenAIRE

    PATIR MÜNEVVEROĞLU, Asli; KORUYUCU, Mine; Seymen, Figen

    2014-01-01

    Amaç: Bu çalışmanın amacı 2-5 yaş arası çocuklarda erken çocukluk çürükleri (EÇÇ) ile beslenme alışkanlıkları ve sosyoekonomik durum arasındaki ilişkinin karşılaştırılmasıdır. Gereç ve Yöntem: Toplam 200 çocuk (2-5 yaş arası) cinsiyet, dmft, dmfs, beslenme ve fırçalama alışkanlıkları, biberon ile beslenme süresi ve biberon içeriği, ailede ki birey sayısı, anne ve babanın eğitim düzeyi ve iş durumu ile ailenin sosyoekonomik durumu gibi parametreler açısından değerlendirilmiştir. İstatistiksel ...

  16. Estudo anatômico comparativo da casca do caule do araçá-amarelo e araçá-vermelho, Psidium cattleianum Sabine, Myrtaceae Comparative anatomy study of stem bark of yellow strawberry-guava and red strawberry-guava, Psidium cattleianum Sabine, Myrtaceae

    Directory of Open Access Journals (Sweden)

    Ledyane Dalgallo Rocha

    2008-12-01

    Full Text Available Psidium cattleianum, conhecido popularmente como araçá-amarelo e araçá-vermelho, pertence à família Myrtaceae. Esta família possui muitos problemas taxonômicos, e por este motivo, é considerada uma das mais complexas quanto à identificação de suas espécies. Com o propósito de esclarecer estas dificuldades, alguns estudos alternativos vêm sendo realizados, como a anatomia da casca, ferramenta que contribui para a compreensão de problemas taxonômicos, embora atualmente ainda seja pouco explorada. No presente estudo, a estrutura da casca caulinar do araçá-amarelo e do araçá-vermelho foi analisada, verificando se as diferenças existentes na sua anatomia correspondem à hipótese de que os mesmos se tratam de dois táxons para a espécie. Para tanto, foram coletadas amostras de três indivíduos de cada morfotipo, sendo processadas de acordo com o procedimento recomendado para análises estruturais. As diferenças entre os morfotipos podem ser observadas na periderme, no arranjo das células parenquimáticas e, de modo geral, na organização do floema colapsado. Os resultados obtidos nesta pesquisa demonstraram que os morfotipos de P. cattleianum, ainda que sejam considerados o mesmo táxon, exibem diferenças no que se refere a organização estrutural da casca do caule.Psidium cattleianum, known as yellow strawberry-guava and red strawberry-guava, belongs to the Myrtaceae family. This family has many taxonomy problems, and for this reason, is considered one of most complicated the identification of their species. With the intention to clarify these difficulties, some alternative studies are being developed, such as the anatomy of bark, tool that contributes to the understanding of taxonomic problems; however, it is a tool currently few explored. In the present study, the structure of the stem bark of yellow strawberry-guava and red strawberry-guava was analyzed and compared, in order to verify the hypothesis of two taxons for

  17. Characterization and effect of clarified araçá (Psidium guineenses Sw. juice on postprandial glycemia in healthy subjects Caracterização e efeito do suco de araçá (Psidium guineenses Sw. clarificado na glicemia pós-prandial em indivíduos saudáveis

    Directory of Open Access Journals (Sweden)

    Diully Mata Balisteiro

    2013-02-01

    Full Text Available Brazilian native fruits are excellent sources of bioactive compounds of phenolic nature. Some of these compounds are able to inhibit carbohydrate- metabolizing enzymes (in vitro, α-amylase and α-glucosidase, delaying carbohydrate digestion. This study aimed to evaluate the effect of clarified araçá (Psidium guineenses Sw. juice on postprandial glycemia in humans after consumption of 25 g of available carbohydrates (approximately 50 g of white bread and characterize the phenolic compounds and in vitro antioxidant capacity of araçá juice and pulp. The results showed that the clarified juice had a positive effect on postprandial glycemia reducing the total amount of glucose absorbed, lengthening the time to reach maximum blood glucose concentration, reducing glucose incremental velocity, and decreasing glucose incremental percentage. Both frozen pulp and clarified juice had high amounts of phenolic compounds, antioxidant capacity, and proanthocyanidins, among which oligomers (monomers to tetramers, pentamers, hexamers, heptamers, octamers, nonamers, decamers, and polymers were detected, and they are probably associated with in vivo effects.Frutas nativas brasileiras são excelentes fontes de compostos bioativos de natureza fenólica. Alguns destes compostos são capazes de inibir in vitro as enzimas do metabolismo de carboidratos, α-amilase e α-glicosidase, o que retarda o tempo de digestão de carboidratos. Neste trabalho, objetivou-se avaliar o efeito do suco de araçá (Psidium guineenses Sw. clarificado sobre a glicemia pós-prandial em humanos, após consumo de 25 g de carboidratos disponíveis provenientes de pão branco (aproximadamente 50 g de pão francês, e caracterizar o suco e a polpa de araçá quanto aos compostos fenólicos e capacidade antioxidante in vitro. Os resultados mostraram que o suco clarificado apresenta efeito positivo sobre a glicemia pós-prandial, causando redução da quantidade total de glicose absorvida

  18. Study of the shelf-life of a mixed araça (Psidium guineensis Sw. and marolo (Annona crassiflora Mart. jam Estudo da vida útil de geleia mista de araçá (Psidium guineensis Sw. e marolo (Annona crassiflora Mart.

    Directory of Open Access Journals (Sweden)

    Clarissa Damiani

    2012-06-01

    Full Text Available The objective of this study was to add value to araça and marolo fruits by developing jams and verifying changes in their physical, chemical, and microbiological parameters during storage. The analyses were carried out every 2 months. From the results, it was shown that the levels of moisture (35.89 - 26.34%, lipids (0.43 - 0.27%, sucrose (30.62 - 28.98%, total pectin (0.83 - 0.50%, soluble pectin (0.52 - 0.38%, total phenolic compounds (180.31 - 135.52 mg.GAE 100 g-1, and organic acids (401.1 - 68.5 µg.g-1 citric acid decreased during storage. However, the levels of protein (0.83 - 0.95%, carbohydrate (62.52 - 72.5%, calories (257,11 - 295,931 kcal, fiber (0.72 - 1.4%, total soluble sugar (62.52 - 70.44%, reducing sugar (32.05 - 41.41%, soluble solids (68.4 - 72.18 °Brix, consistency (0.33 - 0.44 N, total antioxidant potential (11.3 - 22.63%, and color (a* 7.56 - 9.49, and b* 8.63 - 10.49 increased during 1-year storage. The quality of the fruit jams studied was in accordance with the microbiological standards established by the Brazilian legislation. It was concluded that the mixed araça and marolo jam can be stored for 1 year without the addition of additives.O objetivo do trabalho foi agregar valor ao araçá e marolo com o desenvolvimento de geleias e verificar as mudanças ocorridas em variáveis físicas, químicas e microbiológicas, durante o seu armazenamento. As análises foram realizadas, a cada 2 meses. Pelos resultados observados, verificou-se que os teores de umidade (35,89 - 26,34%, lipídios (0,43 - 0,27%, sacarose (30,62 - 28,98%, pectina total (0,83 - 0,50%, pectina solúvel (0,52 - 0,38%, compostos fenólicos totais (180,31 - 135,52 mg.EAG 100 g-1 e ácidos orgânicos (401.1 - 68.5 µg.g-1 de ácido cítrico reduziram durante o armazenamento. Contudo os teores de proteínas (0,83 - 0,95%, carboidratos (62,52 - 72,5%, valor calórico (257,11 - 295,931 kcal, teores de fibras (0,72 - 1,4%, açúcar solúvel total (62,52 - 70

  19. VERIFICATION OF THE HYPOTHESIS REGARDING THE HOMOGENEITY OF GEOTECHNICAL MEDIUMS AT THE "SOOT FACTORY / ČAĐARA" LOCATION IN KUTINA

    Directory of Open Access Journals (Sweden)

    Vladimir Jurak

    2006-12-01

    Full Text Available A great deal of data which determine the characteristics of engineering soils was collected in the course of geotechnical explorations conducted for the purpose of building two industrial objects near Kutina (Tvornica umjetnih gnojiva / Artificial fertilizer factory II and Soot Factory II/ Čađara II. Wishing to familiarize ourselves with the condition of homogeneity/heterogeneity underneath the object, we decided to check the hypothesis regarding the homogeneity of the a priori acquired geotechnical mediums and their geotechnical similarity. The relationship of the two mediums under observation is superpositional, they are lithologically similar but genetically different. They are represented through an engineering geological model reaching the depth of forty meters. Following the basic statistical data analysis for identification, geotechnical parameters and the use of several statistical tests, we were able to reach an engineering judgment on the basis of statistical conclusions. We realized that, from a statistical point of view, both geotechnical mediums are mostly homogenous or, speaking from the engineering point of view, ''quasi-homogenous''. The comparison of these two mediums showed that there is no statistically significant difference according to certain geotechnical parameters of geotechnical parameters. It follows, therefore, that the unification of the superpositioned mediums in a physically united halfspace located under the object is acceptable (the paper is published in Croatian.

  20. „Þetta er bara öðruvísi“: Skynjun og upplifun kayakræðara á náttúrunni

    OpenAIRE

    Sigríður Thorsteinson 1970

    2017-01-01

    Ritgerð þessi er 10 eininga lokaverkefni og hluti af Baccalaureus Scientiarum (BS) gráðu í Ferðamálafræði við Háskóla Íslands. Markmið ritgerðarinnar var að kanna hvernig kayakræðarar með hreyfingu sinni upplifa og skynja landslagið. Rannsóknarniðurstöður byggja á greiningu hálfstaðlaðra viðtala við sjö reynda kayakræðara sem flestir róa allan ársins hring. Viðtölin voru tekin á tímabilinu frá mars til apríl 2015. Niðurstöður leiða í ljós að upplifun frá sjó getur verið talsvert öflugri heldu...

  1. „Þetta er bara öðruvísi": Upplifun og skynjun kayakræðara á náttúrunni

    OpenAIRE

    Sigríður Perla Thorsteinson 1970

    2017-01-01

    Ritgerð þessi er 10 eininga lokaverkefni og hluti af Baccalaureus Scientiarum (BS) gráðu í Ferðamálafræði við Háskóla Íslands. Markmið ritgerðarinnar var að kanna hvernig kayakræðarar með hreyfingu sinni upplifa og skynja landslagið. Rannsóknarniðurstöður byggja á greiningu hálfstaðlaðra viðtala við sjö reynda kayakræðara sem flestir róa allan ársins hring. Viðtölin voru tekin á tímabilinu frá mars til apríl 2015. Niðurstöður leiða í ljós að upplifun frá sjó getur verið talsvert öflugri heldu...

  2. Determination of Ara-AMP by Ion Pair HPLC%单磷酸阿糖腺苷的离子对色谱法测定

    Institute of Scientific and Technical Information of China (English)

    徐明全; 曾凡

    2001-01-01

    A HPLC method was established for the determination of Ara-AMP, using Novapak C18 column (150×3.9 mm,4 μm), with the mobile phase of methanol-water (containing 10 mmol/L tetrabutylammonium hydroxide and 10 mmol/L KH2PO4) (15∶85). The flow rate was 1 ml/min and the UV detection wavelength was 258 nm. The calibration curve was linear in the range of 20~50 μg/ml (r=0.9998). The average recovery was 99.97% (RSD=0.63%).%采用离子对色谱法测定单磷酸阿糖腺苷的含量。采用Novapak C18(150×3.9 mm, 4 μm)反相柱,流动相为甲醇-水(含10 mmol/L氢氧化四丁基铵和10 mmol/L KH2PO4)(15∶85),检测波长258 nm。本方法的平均回收率为99.97%,RSD为0.63%。

  3. Arañas (Arachnida : Araneae de un muestreo estival en el Robledal de Orgi, Valle de Ultzama (Navarra, Norte se España

    Directory of Open Access Journals (Sweden)

    A. de Castro, A. Barriuso

    2004-01-01

    Full Text Available Se ha realizado un análisis faunístico de las arañas capturadas en el Robledal de Orgi durante un muestreo estival del año 2002. Los métodos de captura utilizados fueron : batido de la vegetación, trampas de intercepción de suelo, bandeja de color y captura directa. En total se capturaron 350 individuos adultos y se determinaron 100 especies repartidas en 23 familias. Se encontraron 6 nuevas citas para la Peninsula Ibérica. La diversidad taxonómica del robledal fue alta compararda con otros bosques europeos, aunque no se muestreó de forma sistemática durante un ciclo anual completo y no se abarcó toda la heterogeneidad del bosque. La composición faunística presentó baja proporción de especies con preferencias forestales y alta de amplia distribución geográfica.

  4. PRODUCEREA ŞI COMERCIALIZAREA BĂUTURILOR ALCOOLICE ÎN ORAŞELE DIN RZECZPOSPOLITA ŞI ŢARA MOLDOVEI (SEC.XVI-XVII

    Directory of Open Access Journals (Sweden)

    Nicolae DUDNICENCO

    2016-12-01

    Full Text Available Articolul vizează producerea, comercializarea şi consumul băuturilor alcoolice în oraşele din Rzeczpospolita (a berii, a votcii, a miedului şi din Ţara Moldovei (a vinului, a rachiului, a berii, a brăgii în sec. XVI-XVII. Se investighează mo­dul de producere, comercializare, precum şi taxele care se percepeau pentru băuturile alcoolice în oraşele din teri­toriul dat. Producerea băuturilor alcoolice aducea venituri mari economiei oraşelor din spaţiul indicat supra.PRODUCTION AND COMMERCIALISATION OF ALCOHOLIC DRINKS IN RZECZPOSPOLITA AND MOLDOVA PRINCIPALITY CITIES (XVI-XVII C.The article targeting the production, marketing and consumption of alcoholic drinks in the cities from Rzeczpospolita (beer, vodka, mead and from Moldova (wine, spirits, beer, braga in the XVI-XVII c. It have been investigated the mode of production, sell and taxes at which were subjected the alcoholic drinks in the cities on that territory. Production of alcoholic drinks brought substantial revenues to the economy of the cities from the indicated area.

  5. Analysis of Japanese Patients Treated with or without Long-Term Epirubicin Plus Ara-C Intravesical Instillation Therapy for Low-Grade Superficial Bladder Cancer

    Directory of Open Access Journals (Sweden)

    Tomonori Kato

    2015-01-01

    Full Text Available The high incidence of tumor recurrence following transurethral resection (TUR represents a major problem encountered in the management of bladder cancer. This study examined the efficacy of intravesical chemotherapy in superficial bladder cancer. We retrospectively analyzed 90 Japanese cases with low-grade superficial transitional cell carcinoma (stage T1, grades 1 and 2 who were rendered tumor-free by TURBT (TUR of bladder tumor and who thereafter were treated with or without intravesical chemotherapy. Among them, instillation was terminated in 2 patients due to adverse effects (severe but reversible chemical cystitis. Remaining 88 patients were divided into 2 groups according to therapy: the TURBT-only group (n=46, defined as patients treated with TURBT alone, and the Instillation group (n=42, defined as patients treated with weekly intravesical instillation therapies using epirubicin plus Ara-C. Recurrence-free rate was significantly higher in the Instillation group than in the TURBT-only group (p=0.02, HR = 0.457. The 5-year recurrence-free rate was 58.5% for the Instillation group and 38.6% for the TURBT-only group. Our instillation schedule represents the most intensive regimen among previously reported therapies and resulted in a 54.3% decrease in incidence of tumor recurrence. We believe that the results of this study could provide useful information on management of bladder cancer.

  6. Meat quality attributes of the Longissimus lumborum muscle of the Kh'ara genotype of llama (Lama glama) reared extensively in northern Chile.

    Science.gov (United States)

    Mamani-Linares, L W; Gallo, C B

    2013-05-01

    Twenty male llama of the Kh'ara genotype, reared extensively in the north of Chile, were slaughtered at ages between 2 and 4 permanent teeth (2 to 3.5years) and analyses were carried out on the Longissimus lumborum muscle, including composition (moisture, fat, protein, ash, cholesterol, amino acids, fatty acid profile and collagen content) and meat quality parameters (pH, color, water holding capacity and Warner-Bratzler shear-force). Llama meat was characterized by a low cholesterol (39.04mg/100g) and intramuscular fat (1.56%) content, a total collagen content of 6.28mg/g, of which 20.28% was soluble collagen. Amino acid composition and fatty acid profile were similar to those found for beef finished on forage. Llama meat showed a low n-6/n-3 (4.69) and hypocholesterolemic/hypercholesterolemic (1.55) ratio and acceptable values of DFA (65.78%). Quality parameters in llama Longissimus muscle were within the ranges reported for more traditional meats such as beef and lamb.

  7. Inhibition of poly (ADP-ribose) polymerase as a protective effect of nicaraven in ionizing radiation- and ara-C-induced cell death.

    Science.gov (United States)

    Watanabe, Michiko; Akiyama, Nobutake; Sekine, Hiroshi; Mori, Mariko; Manome, Yoshinobu

    2006-01-01

    Nicaraven is a drug used for patients with a subarachnoid hemorrhage. It crosses the blood-brain barrier and has potent antivasospastic and brain-protective effects. While nicaraven scavenges the hydroxyl radical, the mechanism of its protection remains obscure. In addition to the hydroxyl radical scavenging effect, nicaraven also exhibits inhibitory action on poly (ADP-ribose) polymerase (PARP). The mechanism of the pharmacological action of nicaraven has not yet been clarified. Human myeloid HL-525 cells were exposed to ionizing radiation or hydrogen peroxide and the effect of nicaraven on the activation of the Egr-1 promoter was measured. Next, the action of the drug on DNA fragmentation and inhibition of thymidine uptake caused by the genotoxic stimulation of ionizing radiation or cytosine B-D-arabinofuranoside (ara-C) were assessed. Finally, direct inhibition of the PARP enzyme by nicaraven was measured. Nicaraven did not inhibit the activation of the Egr-1 promoter caused by H2O2 and the activation caused by ionizing radiation. However, the drug repressed DNA fragmentation and increased thymidine uptake dose-dependently. Nicaraven had a direct inhibitory effect on PARP. The effect of nicaraven on the Egr-1 promoter was different from that of another free-radical scavenger, N-acetyl cysteine. Nicaraven demonstrated similar protection of the PARP inhibitors including 3-aminobenzamide. Since nicaraven directly inhibits the PARP enzyme, the drug might be useful in oncology as well as in studying tissue-damaging conditions characterized by increased PARP activity.

  8. X- Işınlarının Odontogenesis üzerinde etkileri; deneysel araştırma

    OpenAIRE

    Erseven, Gülçin

    2013-01-01

    I. GİRİŞ:X ışınlarının keşfinden sonra, bu ışınlar çeşitli amaçlarla kullanılmaya başlanmış ve zamanla bazı zararlı etkileri görülmüştür. Aşağı yukarı yüzyılımızın başından beri amphibialar, balıklar, memeliler üzerinde araştırmalar yapılmıştır. Bu deneylerde değişik dozlar kullanılmış ve çeşitli anomaliler bulunmuştur. Çalışmalar giderek geliştirildi. Özel organlar, dokular ve hücreler ele alındı. Hemopoietik sistem ya da öbür organlar (örneğin karaciğer, akciğer gibi) üzerinde geniş çalışma...

  9. Effect of drying and soaking fruits and seeds on germination of macaw palm (Acrocomia aculeata [Jacq.] Loddiges ex MART.=Efeito da secagem e embebição de frutos e sementes na germinação de macaúba (Acrocomia aculeata [Jacq.] Loddiges ex MART.

    Directory of Open Access Journals (Sweden)

    Marcus Vinícius Vieira da Silva

    2012-04-01

    Full Text Available This study evaluated mechanisms of the dehydration and rehydration of fruits and seeds on the resulting embryo viability of the macaw palm, Acrocomia aculeata (Jacq. Loddiges ex Mart. Dehydration was performed in a forced-air oven at 37 ± 2°C for 0, 3, 6, 9, 12 or 15 days, and after these periods, the embryo viability was evaluated by the tetrazolium test. The effect of hydration on the germination percentage and velocity index was evaluated by the imbibition of seeds with distilled water in a germinator at 30 ± 2°C for 0, 2, 4, 6, 8 or 10 days. The seeds were then treated with fungicide and maintained in a Mangelsdorf germinator at 30 ± 2°C. Drying caused a progressive water loss in the fruits and facilitated the extraction of the seeds. Fruits subjected to drying for up to nine days had no loss of vigor; however, after dehydration for 15 days, a loss in seed viability was observed. Simple linear regression estimated the seed water content based on the fruit water content. Seed imbibition in distilled water favored an increase in dead by fungally contaminated seeds.Objetivou-se com esse estudo elucidar os mecanismos de desidratação e hidratação de frutos e sementes na viabilidade de embriões de macaúba Acrocomia aculeata (Jacq. Loddiges ex Mart. A desidratação foi realizada em estufa de circulação de ar, ajustada a 37 ± 2°C por 0, 3, 6, 9, 12 e 15 dias, após esses períodos, foi avaliada a viabilidade dos embriões pelo teste de tetrazólio. O efeito da hidratação na porcentagem e velocidade de germinação foi avaliado pela embebição das sementes em água destilada em germinador com temperatura a 30 ± 2°C por 0, 2, 4, 6, 8 e 10 dias. As sementes foram tratadas com fungicida e mantidas em germinador do tipo Mangelsdorf. A secagem promoveu perda pregressiva no conteúdo de água dos frutos e facilitou a extração das sementes. Quando os frutos foram secos por nove dias não há perda de vigor, no entanto, depois de 15

  10. Testing for salmonella spp. In released parrots, wild parrots, and domestic fowl in lowland peru.

    Science.gov (United States)

    Butron, Oscar; Brightsmith, Donald J

    2010-07-01

    Wild animal populations face threats from pathogens from both intentionally released captive animals and domestic animals that accompany human settlements. From December 2004 through August 2005, we studied free living macaws and parrots in the Tambopata National Reserve in the Peruvian Amazon and semicaptive domestic fowl in human settlements adjacent to the reserve. In 1992-1993, large macaws (Aras spp.) that were serologically positive for Salmonella Pullorum were released into this reserve, which hosts dense populations of free-living parrots and macaws. We collected cloacal swabs from 64 birds and cultured for Salmonella spp. via standard laboratory methods. All 35 psittacines tested were culture negative for Salmonella spp., while 31% of 29 domestic fowl were culture positive. Our findings suggest that the domestic fowl that accompany human settlement in this region carry and shed Salmonella spp. that could threaten wild bird populations in and around the reserve.

  11. A research on the levels of conscious consumerism of the sport consumerSpor tüketicilerinin bilinçli tüketicilik düzeyleri üzerine bir araştırma

    Directory of Open Access Journals (Sweden)

    Hakan Ünal

    2014-04-01

    Full Text Available This research was conducted to determine conscious consumerism levels of 370 sport consumers.Conscious Consumer scale, which adapted to Turkish by Halil İbrahim Sağlam works was used in the research. The reliability score was found as .74. In the research based on simple random sampling method, the number of persons in the population as (N=700, sample diameter was defined as (n = 370.As a result; it was determined that there is a positive relationship (medium level between conscious consumerism point, consumer responsibility point quality, consciousness point and budget-price point. A significant relationship (strong level was found between conscious consumerism point and quality consciousness point and budget-price analysis point. Also a positive significant relationship (weak level was found between conscious consumerism point, quality consciousness point and budget-price analysis point. It was determined that there is no statistical difference between male and female participants in terms of conscious consumerism, consumer responsibility consciousness, quality consciousness, and budget-price consciousness. ÖzetBu araştırma, 370 spor tüketicisinin, bilinçli tüketicilik düzeylerinin araştırılması amacıyla yapılmıştır.Araştırmada, Halil İbrahim Sağlam tarafından geçerlilik ve güvenirlik çalışması yapılan bilinçli tüketicilik ölçeği kullanılmıştır. Ölçeğin güvenirlik değeri (crombach alfa .74 olarak bulunmuştur. Basit rastgele örnekleme yöntemi uygulanarak yapılan çalışmada, kitledeki kişi sayısı (N=700 olarak alındığında, örneklem çapı (n = 370 olarak belirlenmiştir.Sonuç olarak; spor tüketicilerinin, bilinçli tüketicililik düzeyleri ile kalite bilinci ve bütçe-fiyat bilinçleri arasında orta düzeyli bir ilişki; bilinçli tüketicililik düzeyi ile tüketici sorumluluğu bilinci arasında kuvvetli bir ilişki olduğu; tüketici sorumluluğu bilinci ile kalite bilinci ve b

  12. Açık Dergi Yayıncılığında Örnek Bir Uygulama: Tarih Kültür ve Sanat Araştırmaları Dergisi

    Directory of Open Access Journals (Sweden)

    Sinan YILMAZ

    2012-03-01

    Full Text Available Karabük Üniversitesi Tarih Kültür ve Sanat Araştırmaları Merkezi bünyesinde kurulan Tarih Kültür ve Sanat Araştırmaları Dergisi, Mart 2012 sayısıyla yayın hayatına başladı. Dergimiz, merkezin kuruluş amaçları doğrultusunda sosyal bilimlerin tüm alt branşlarına yönelik hizmet verecektir. Yılda 4 kez yayımlanacak olan derginin Türkçe, İngilizce, Fransızca ve Arapça ara yüzleri sayesinde bu dillerin her birinde dergiye erişim mümkün olacaktır. Dergide yayımlanan makalelerin dört farklı dilde özetleri bulunacaktır. Tarih Kültür ve Sanat Araştırmaları Dergisi Açık Dergi Sistemlerine Arapça dil eklentisi ekleyerek bu konuda bir ilki gerçekleştirmiştir. Ayrıca derginin Türkçe ara yüzünde bulunan pek çok problem de titiz bir çalışmayla giderilmiştir. Açık Dergi Sistemlerini kullanan Türkiye’deki kullanıcıların talep etmeleri halinde yapmış olduğumuz çalışmaları kendileriyle paylaşmamız mümkündür. Sistemin Türkçe ara yüzünü daha da geliştirmek için çalışmalarımız devam etmektedir. Ayrıca Arapça ara yüzünde de halen pek çok eksiklik bulunmaktadır. Bu çalışmalarımız tamamlanınca Public Knowledge Project web sitesine gönderilerek tüm kullanıcıların bu çalışmalardan faydalanmaları sağlanacaktır. Bu yazıda, Açık Dergi Sistemleri kullanılarak bir derginin nasıl kurulacağı ve dergimizin bu konuda yapmış olduğu yenilik ve geliştirmeler ele alınmıştır.

  13. Arañas sociales de la Amazonía ecuatoriana, con notas sobre seis especies sociales no descritas previamente Social spiders of the Ecuadorian Amazonia, with notes on six previously undescribed social species

    Directory of Open Access Journals (Sweden)

    LETICIA AVILÉS

    2001-09-01

    Full Text Available La Amazonía ecuatoriana posee una excepcional diversidad y abundancia de arañas sociales. En esta zona están presentes tres de los cuatro tipos de sociabilidad descritos para arañas, incluyendo representantes de 10 géneros y siete familias diferentes. En este artículo revisamos brevemente la historia natural de las catorce especies con algún tipo de sociabilidad que hemos identificado en esta área, incluyendo seis especies ­Cyclosa sp., Plesiometa sp., Tapinillus sp. 2, Achaearanea cf. mundula, una especie de la familia Pholcidae y otra de la familia Sparassidae­ cuya sociabilidad no ha sido descrita previamente. En la introducción revisamos los distintos tipos de sociabilidad en arañas, anotando características únicas que les diferencian de los insectos sociales. En particular, notamos que las arañas sociales no han desarrollado castas reproductivas y que en las especies de sociabilidad más avanzada los grupos sociales son también poblaciones relativamente aisladas unas de otras. En la discusión consideramos cómo las arañas sociales de la Amazonía ecuatoriana, en particular aquellas recientemente descubiertas, contribuyen a nuestro entendimiento de la evolución del comportamiento social en arañas. Discutimos también ciertos problemas evolutivos y ecológicos que las arañas sociales pueden ayudar a esclarecer, tales como la evolución de la proporción de sexos, los niveles de selección, y los patrones de crecimiento, extinción y recolonización de poblaciones locales en una metapoblación. Apéndice (English .The Ecuadorian Amazon region is exceptionally rich in terms of the number and variety of social spiders it contains. In this area there are representatives of three of the four forms of social behavior described for spiders, comprising species in 10 genera and seven families. Here we review the natural history of the fourteen species from this area that we have identified as having some form of social behavior

  14. Petrography and Geochemistry of the Aimorés Charnockitic Complex: An Example of Post-orogenic Plutonism of the Araçuaí/Ribeira Belt

    Directory of Open Access Journals (Sweden)

    Fernando Machado de Mello

    2011-04-01

    Full Text Available The Aimorés Complex is an inversely zoned multistage ring-like structure which crops out over about 150 km2 and wasintruded approximately 500 Ma years ago, during the post-collision event related to Araçuai-Ribeira Fold Belt. This complexconsists of a monzodioritic core with hypersthene, and a charnockitic intermediary ring encircled by granodiorites. Thecontact between core and rim is marked by a mingled/mixed zone, where small occurrences of garnet-granite were also found.Abundant enclaves of different shapes and sizes occur showing circular, diffuse and sharp contacts with the groundmass. Thecontact with the country rocks is sharp and sub-vertical, varying from concordant to discordant and presenting dips toward theintrusion. The enclosing rocks are orthogneiss, which have experienced high-amphibolite to granulite-facies metamorphism.Most of the facies of the complex are metaluminous, except for the large enclaves embedded in the inner portion, which areperaluminous. The aluminium saturation index is approximately 1 and the agpaitic index ((Na+K/Al ranges from 0.45 to0.77. The negative correlation of CaO, MgO, Fe2O3, TiO2 e P2O5 in the Harker diagram can be explained by pyroxene andfeldspar fractionation. The MgO/TiO2 ratio close to 1 and the tectonic discrimination diagrams are compatible with postcollisionalgranitoids, as well as the sum of Zr, Nb, Ce and Y (500 - 1.000 ppm. The Ba/Sr, Sr/Rb, Ba/Rb and Zn/MgO ratiosindicate that there was initially fractionation by pyroxene and plagioclase, followed later by fractionation by amphibole, biotiteand K-feldspar. Geochemical data probably reflects the combination of crystal fractionation and/or crustal contamination andmagma mingling/mixing processes.

  15. High toxicity and specificity of the saponin 3-GlcA-28-AraRhaxyl-medicagenate, from Medicago truncatula seeds, for Sitophilus oryzae

    Directory of Open Access Journals (Sweden)

    Da Silva Pedro

    2012-07-01

    Full Text Available Abstract Background Because of the increasingly concern of consumers and public policy about problems for environment and for public health due to chemical pesticides, the search for molecules more safe is currently of great importance. Particularly, plants are able to fight the pathogens as insects, bacteria or fungi; so that plants could represent a valuable source of new molecules. Results It was observed that Medicago truncatula seed flour displayed a strong toxic activity towards the adults of the rice weevil Sitophilus oryzae (Coleoptera, a major pest of stored cereals. The molecule responsible for toxicity was purified, by solvent extraction and HPLC, and identified as a saponin, namely 3-GlcA-28-AraRhaxyl-medicagenate. Saponins are detergents, and the CMC of this molecule was found to be 0.65 mg per mL. Neither the worm Caenorhabditis elegans nor the bacteria E. coli were found to be sensitive to this saponin, but growth of the yeast Saccharomyces cerevisiae was inhibited at concentrations higher than 100 μg per mL. The purified molecule is toxic for the adults of the rice weevils at concentrations down to 100 μg per g of food, but this does not apply to the others insects tested, including the coleopteran Tribolium castaneum and the Sf9 insect cultured cells. Conclusions This specificity for the weevil led us to investigate this saponin potential for pest control and to propose the hypothesis that this saponin has a specific mode of action, rather than acting via its non-specific detergent properties.

  16. Ortaçağ ve Sonrası Muş İli Yüzey Araştırması -2008- Malazgirt

    Directory of Open Access Journals (Sweden)

    Bülent Nuri KILAVUZ

    2013-03-01

    Full Text Available AbstractThe research was carried out with the permissions of General Directorate of Monuments and Museums, Culture and Tourism Ministry of Turkish Republic, between 22 July to 6 August 2008 at Malazgirt town of Muş Province and dependent villages.Some cultural assets composed of monumental architectural structures such as Mosques, Churches, Inns, Bridges, cemeteries and grave stones were identifiedA mosque, ruins of an Inn, two bridges at the center of Malazgirt, a house and a rock church,at Uzgörür village of Bulanık County, twelve cemeteries at Malazgirt town and two cemeteries at Uzgörür village were investigated..Memorial monuments and tombstones vary in terms of materials, forms and style according to region and periods. A small number of identified works belong to Seljuk period and afterwards (XI-XV. Century, and most of the others usually belong to the Ottoman (XVI-XIX centuries period.The searched cemeteries were found to be different from each other. It is important to demonstrate the richness of the geography of Muş. Some of the motifs over the Headstones indicate differences, especially compared to other provinces in the region.Historical graves in the cemetery are rapidly destroyed by natural and human factors actually. In addition, all new burials in cemeteries today increase the destruction.ÖzetT.C. Kültür ve Turizm Bakanlığı, Kültür Varlıkları ve Müzeler Genel Müdürlüğü’nün izinleri ile 22 Temmuz- 06 Ağustos 2008 tarihleri arasında Muş ilinin Malazgirt ilçesinde ve köylerinde yüzey araştırması gerçekleştirilmiştir.Cami, Kilise, Han, Köprü, ve Ev’den oluşan anıtsal mimari yapılar ile mezarlıklar ve mezar taşlarından oluşan kültür varlıkları tespit edilmiştir. Araştırmanın son günlerinde Bulanık ilçesinin köylerine de girilmiştir.Araştırmada; Malazgirt merkezde iki, Dirimpınar Köyü’nde bir han kalıntısı, bir mescit ve bir cami, iki köprü, Bulanık ilçesi Uzg

  17. Cambro-Ordovician magmatism in the Araçuaí Belt (SE Brazil): Snapshots from a post-collisional event

    Science.gov (United States)

    De Campos, Cristina P.; de Medeiros, Silvia R.; Mendes, Julio C.; Pedrosa-Soares, Antonio C.; Dussin, Ivo; Ludka, Isabel P.; Dantas, Elton L.

    2016-07-01

    The focus of the present work is the rebound of the magmatism at the late stages of orogenic collapse in the Araçuaí Belt, in Brazil. At the end of the orogen bimodal inversely zoned plutons were emplaced along a tectonic corridor following the Atlantic coast of Brazil. This event culminates around 500 Ma. We review geology, petrography, geochemistry and geochronology of these plutonic structures in the region of Espírito Santo. New geochemical modeling of trace element data together with new whole rock Sm-Nd and Rb-Sr isotopic data depict a gradual process of mantle contamination during different stages of the orogen. In the post-orogenic stage contamination reaches extreme values. Basic rocks reach εNd(0.5Ga) values below -10. Gabbros to peridotites are more enriched in Ba, Zr, LREE and Sr than the surrounding metasediments. Four new U-Pb data sets from determinations in zircon and monazite crystals, (central northern part of the belt) confirm peak magma production around 500 ± 15 Ma, ranging up to 525 ± 3 Ma in one of the structures. Based on the pictured data, we discuss the significance of this magmatism and present a possible model: a process of gradational delamination of the subcontinental lithospheric mantle and adjacent deep continental crust through underplating. As a consequence, an already enriched mantle was dramatically further contaminated. At the end of this event the intrusion of alkaline melts, with less negative εNd (-5) and further enrichment in incompatible elements, point towards a new input of deeper juvenile mantle magma. Our data suggest the possible onset of a hotspot due to the destabilization of the asthenospheric mantle after orogenic collapse.

  18. Bilgisayar Destekli Hikaye Anlatımı Yöntemi: Alanyazın Araştırması

    Directory of Open Access Journals (Sweden)

    Gökben Turgut

    2015-04-01

    Full Text Available ÖzHikaye anlatım yöntemi, eğitimin bir çok alanında, neredeyse tüm kademelerinde geçmişten günümüze en sık kullanılan yöntemlerden birisi olmuştur. Bunun en büyük nedenlerinden birisi hikayelerin eğlenceli bir tarafının bulunması olarak gösterilebilir. Bunun yanında hikayeler, bireylerin problem çözme becerilerini, hayal güçlerini geliştirmekte ve yaratıcılıklarını desteklemekte, dil ve sosyal gelişimlerini olumlu yönde etkilemektedir. Teknolojinin hızla gelişmesi ile birlikte hikaye kullanımında "dijital hikaye/öykü" isimli yeni bir kavram ortaya çıkmıştır. Dijital hikaye anlatma; interaktif dijital bir ortamda, ses, resim, grafik, hareketli grafik, görüntü, müzik ve metne dayalı anlatımın sunulması süreci olarak tanımlanmaktadır. Dijital hikaye, sanal ortamları kullanarak öğrencilerin birer hikaye yapılandırıcısı, hikaye anlatıcısı olmalarını sağlamaktır. Böylelikle, bir konu hakkında kendi hikayesini yazan bir birey sentez-değerlendirme gibi üst düzey bilişsel etkinlikler içerisinde yer alarak daha kalıcı bir öğrenme gerçekleştirebilir. Bu potansiyeli ile dijital hikaye kavramı eğitim içerisinde daha büyük bir öneme sahip olması gereken bir alan olarak görülmelidir. Araştırmanın amacı; bilgisayar destekli hikaye anlatımı yöntemini konu alan çalışmaları incelemektir. Araştırmanın yöntemi döküman incelemesi olarak belirlenmiştir. Doküman incelemesi; araştırılan konu hakkında bilgilerin yer aldığı yazılı materyallerin analizini ifade etmektedir. Bu amaç doğrultusunda konu üzerinde son yedi yılda (2007-2014 yapılan çalışmalara elektronik veritabanları kullanılarak ulaşılmaya çalışılmıştır. Alanyazın taraması kapsamında 21 çalışma incelenmiş, makale seçiminde dijital öyküleme yönteminin kullanıldığı uygulama örneklerini içeriyor olması kriter olarak belirlenmiştir. Yapılan ara

  19. Inhibitory effect of polyunsaturated fatty acids on apoptosis induced by etoposide, okadaic acid and AraC in Neuro2a cells

    Directory of Open Access Journals (Sweden)

    Tomizawa,Kazuhito

    2007-06-01

    Full Text Available Neuronal apoptosis is involved in neurodegenerative diseases such as Alzheimer's disease and Parkinson.s disease. An efficient means of preventing it remains to be found. Some n-3 polyunsaturated fatty acids (PUFAs such as docosahexaenoic acid (DHA, 22 : 6n-3 and eicosapentaenoic acid (EPA, 20 : 5n-3 have been reported to be protective against the neuronal apoptosis and neuronal degeneration seen after spinal cord injury (SCI [1]. However, it is unclear which kinds of PUFAs have the most potent ability to inhibit neuronal apoptosis and whether the simultaneous treatment of PUFAs inhibits the apoptosis. In the present study, we compared the abilities of various n-3- and n-6- PUFAs to inhibit the apoptosis induced after the administration of different apoptotic inducers, etoposide, okadaic acid, and AraC, in mouse neuroblastoma cells (Neuro2a. Preincubation with DHA (22 : 6n-3, eicosapentaenoic acid (EPA, 20 : 5n-3, alpha-linolenic acid (alpha-LNA, 18 : 3n-3, linoleic acid (LA, 18 : 2n-6, arachidonic acid (AA, 20 : 4n-3, and gamma-linolenic acid (gamma-LNA, 18 : 3n-6 significantly inhibited caspase-3 activity and LDH leakage but simultaneous treatment with the PUFAs had no effect on the apoptosis of Neuro2a cells. There were no significant differences of the anti-apoptotic eff ect among the PUFAs. These results suggest that PUFAs may not be effective for inhibiting neuronal cell death after acute and chronic neurodegenerative disorders. However, dietary supplementation with PUFAs may be beneficial as a potential means to delay the onset of the diseases and/or their rate of progression.

  20. opraktan izole edilen Bacillus türlerinin tanımlanması ve biyolojik özelliklerinin araştırılması

    Directory of Open Access Journals (Sweden)

    Hatice Katı

    2016-08-01

    Full Text Available Bu çalışmada, Giresun adasından toplanan toprak örneklerinden Bacillus izolasyonu yapılmıştır. Bu izolatlar morfolojik, biyokimyasal ve moleküler olarak tanımlanmıştır. Tanımlanan Bacillus’larda bazı ekstrasellüler enzimlerinin varlığı kalitatif olarak incelenmiştir. Ayrıca Bacillus izolatlarının bazı bakterilere karşı antibakteriyal aktiviteleri agar difüzyon metoduna göre araştırılmıştır. Sonuç olarak 38 izolat B. cereus grubu üyesi, 7 izolat B. thuringiensis, 10 izolat B. megaterium, 6 izolat B. pumilus ve 12 izolat Bacillus sp. olarak tanımlanmıştır. Bacillus izolatlarının ekstrasellüler enzim aktivite sonuçları değerlendirildiğinde 38 izolatın amilaz, 53 izolatın lipaz/esteraz, 16 izolatın kitinaz, 7 izolatın ksilanaz, 2 izolatın pektinaz, 73 izolatın proteaz ve 35 izolatın selülaz enzim aktivitesi pozitif olarak bulunmuştur. Çalışmada kullanılan Bacillus izolatları test edilen mikroorganizmaların gelişmelerini değişik oranlarda engellemiştir. Dokuz izolat yüksek antibakteriyal aktivite göstermiştir.

  1. O gabinete do doutor Edelvito Campelo D'Araújo: a Penitenciária Pedra Grande como espaço de construção de um saber (1933-1945 The office of doctor Edelvito Campelo D'Araújo: Pedra Grande Penitentiary as a space for building knowledge (1933-1945

    Directory of Open Access Journals (Sweden)

    Fernanda Rebelo

    2007-12-01

    Full Text Available Discute a instalação do modelo penitenciário na cidade de Florianópolis, em Santa Catarina, na década de 1930, sob a ótica do pensamento médico-higienista, e suas interfaces com o pensamento jurídico. Analisa também os discursos que, na época, eram aceitos ou considerados com valor científico. Edelvito Campelo D'Araújo, diretor da Penitenciária Pedra Grande entre 1935 e 1945, realizou uma reforma na instituição tanto administrativa, com o aumento e especialização do funcionalismo e a criação de novas seções, como física, isto é, na estrutura do prédio. Essa reforma tinha um duplo objetivo: além de implementar uma administração mais racional e moderna, de acordo com o ideário positivista da República Nova, buscava realizar um estudo científico, elaborado pelo próprio diretor, no intuito de conhecer a fundo o 'fenômeno crime' e as motivações dos criminosos.The article discusses the introduction of the penitentiary model in the city of Florianópolis, Santa Catarina, in the 1930s, from the perspective of hygienism and its interfaces with legal thought. It also analyzes the discourses that were accepted or deemed of scientific value at that time. Edelvito Campelo D'Araújo, director of the Pedra Grande Penitentiary from 1935 to 1945, enacted an administrative and physical reform that boosted staff numbers and increased their specialization while also adding new sections to the building structure. The reform had a twofold goal: it was meant to introduce a more rational, modern administration, in tune with the positivist thinking of the New Republic, and to conduct an in-depth scientific study, designed by the director himself, of the 'crime phenomenon' and of perpetrators' motives.

  2. A research about the effects of personality traits over tourism management department preferencesKişilik özelliklerinin turizm bölümleri tercihlerine etkileri üzerine bir araştırma

    Directory of Open Access Journals (Sweden)

    Ümit Şengel

    2016-07-01

    Full Text Available Tourism industry maintains its rapid growing rate both in the world and Turkey in recent years. Since tourism industry is service-driven, human resource is considerably important. Therefore a great number of qualified labour force is needed and the importance of educational institutions that are aim to train labour force for tourism industry is increased. The purpose of the study is to determine the relationship between the reason to prefer tourism department and personality traits of tourism students In this study, examining the relation between personality -the term that is related to human’s psychological and physiological structure- and department preference enhances its importance. Survey form technique has been used as data collecting tool. Obtained data was analysed by using SPSS and LISREL Soft wares. Regression analysis shows personality traits explains 32% of career opportunities, 17% of professional convenience and 28% sectoral attractiveness among the reason to prefer tourism department.   Özet Turizm endüstrisi son yıllarda hem dünya genelinde hem de Türkiye’de hızlı bir büyüme seyri göstermektedir. Turizm, hizmet ağırlıklı bir endüstri olması nedeni ile turizmde insan kaynağı oldukça önem taşımaktadır. Bu durum da çok sayıda yetişmiş elemana ihtiyacı ortaya çıkarmaktadır. Bu nedenle turizm endüstrisine eleman yetiştirmeye yönelik eğitim veren kurumların da önemi son yıllarda artmıştır. Bu Araştırmada turizm eğitimi alan öğrencilerin turizm bölümünü tercih etme nedenleri ile kişilik özellikleri arasındaki ilişkinin belirlenmesi amaçlanmıştır. Bu araştırmada insanın psikolojik veya fizyolojik yapısı ile ilgili bir kavram olan kişiliğin bölüm tercihi ile ilişkisinin incelenmesi araştırmayı literatür açısından önemli hale getirmektedir. Araştırmanın veri toplamasında anket tekniği tercih edilmiştir. Kolayda örnekleme yöntemi ile belirlenen 285

  3. Prevalence and incidence of systemic sclerosis in southern Sweden: population-based data with case ascertainment using the 1980 ARA criteria and the proposed ACR-EULAR classification criteria.

    Science.gov (United States)

    Andréasson, K; Saxne, T; Bergknut, C; Hesselstrand, R; Englund, M

    2014-10-01

    To estimate the prevalence and incidence of systemic sclerosis (SSc) in southern Sweden. In Skåne, the southernmost region of Sweden (total population 1.2 million), healthcare provided is registered in the Skåne Healthcare Register. We identified all Skåne residents who had received an International Classification of Diseases 10 diagnosis of SSc (M34) or Raynaud's phenomenon (I73.0) between 1998 and 2010. Every single case was ascertained by review of medical records in reference to the 1980 American Rheumatism Association preliminary classification criteria for SSc and the proposed American College of Rheumatology (ACR)-European League Against Rheumatism (EULAR) classification criteria presented at the ACR/Association of Rheumatology Health Professionals Annual Meeting 2012. We calculated the point prevalence by the end of 2010 by linkage with the population register to exclude deceased persons and we also estimated the mean annual cumulative incidence for 2006-2010. Using the 1980 ARA criteria, the adult prevalence and annual incidence of SSc in the Skåne region were 235 and 14 per 1 million inhabitants respectively. Applying the proposed ACR-EULAR criteria, the corresponding figures were 305 and 19 per 1 million inhabitants. A majority (82%) of the prevalent cases had the limited cutaneous SSc subtype. The prevalence and incidence of SSc in southern Sweden, based on the 1980 ARA criteria, are higher than previously reported in northern Europe and do not support the concept of a north-south gradient of SSc occurrence in Europe. Application of the proposed ACR-EULAR classification criteria in this population results in about 30-40% higher estimates of SSc prevalence and incidence compared to the 1980 ARA criteria. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  4. Reservoir quality in the A2C-Stringer interval of the late Neoproterozoic Ara-Group of the South Oman Salt Basin. Diagenetic relationships in space and time

    Energy Technology Data Exchange (ETDEWEB)

    Becker, S. [RWTH Aachen (Germany). LuFG Reservoir Petrology; Reuning, L.; Kukla, P.A. [RWTH Aachen (Germany). Geological Inst.; Abe, S.; Li, Shiyan; Urai, J.L. [RWTH Aachen (Germany). Structural Geology, Tectonics and Geomechanics; Farqani, S.; Lopes Cardozo, G.; Rawahi, Z. [Petroleum Development Oman (Oman)

    2013-08-01

    The Ediacaran-Early Cambrian Ara Group of the South Oman Salt Basin consists of six carbonate to evaporite (rock salt, gypsum) sequences. These Ara Group carbonates are termed A0C to A6C from the bottom towards the top of the basin. Differential loading of locally 5 km thick Cambrian to Ordovician clastics onto the mobile rock salt of the Ara Group caused growth of isolated salt diapirs, which resulted in strong fragmentation and faulting of the carbonate intervals into several isolated so-called 'stringers'. These carbonate stringers represent a unique intra-salt petroleum system, which has been successfully explored in recent years. However, some of the stringers failed to produce at significant rates due to the complex diagenetic history from the shallow to the deep burial realm. The goal of this study is twofold. Firstly, to unravel the complex diagenesis and its relative timing and link them to the burial history of the salt basin. Secondly, to detect spatial distribution patterns of diagenetic phases and their effect on reservoir properties. Mineralogy, rock fabrics, paragenetic relationships and geochemistry of {proportional_to} 400 samples from several petroleum wells from the late Neoproterozoic A2C interval were analyzed and combined with pre-existing data. The spatial distribution of diagenetic phases and petrophysical characteristics will be displayed in field-scale distribution maps. These maps comprise crucial information for better prediction of reservoir quality in the analyzed fields, planning of new exploration wells and better volumetric calculations. An integration of the paragenetic sequence derived from thin-section analysis with results from finite element and discrete element models further helps to constrain the effect of salt tectonics on fracture formation and fluid evolution within the stringers.

  5. Formação sócio-espacial da região de Araçatuba na primeira metade do século XX

    Directory of Open Access Journals (Sweden)

    Danton Leonel de Camargo Bini

    2010-08-01

    Full Text Available Nesse trabalho se apresenta a história da ocupação do espaço geográfico regional de Araçatuba (SP na primeira metade do século XX a partir das imposições realizadas pelas forças políticas e econômicas hegemônicas vigorantes nos momentos das anexações das terras agrícolas pelos circuitos espaciais de produção cafeeiro, algodoeiro e pecuário

  6. TiN KAPLANMIŞ KESİCİ TAKIMLARDA GERİLME ANALİZİ VE TAKIM-TALAŞ ARA YÜZEYİNDEKİ SÜRTÜNME KATSAYISININ ETKİSİ

    Directory of Open Access Journals (Sweden)

    Kubilay ASLANTAŞ

    2003-02-01

    Full Text Available Kaplanmış takımlar günümüz metal işleme endüstrisinde yaygın olarak kullanılmaktadır. Çünkü, ince ve sert kaplamalar takım aşınmasını azaltırken, takım ömrünü ve verimliliği de arttırabilmektedir. Bu tür kaplamalar daha düşük takım aşınmaları ve azalan kesme kuvvetleri nedeniyle, işleme ekonomisine ve kesici takım performansına önemli katkıda bulunmaktadırlar. Özellikle TiN kaplamalar yüksek mukavemet ve düşük sürtünme katsayılarına sahiptir. Kesme esnasında sürtünme katsayısının düşük olması, kesici takımda meydana gelebilecek hasarları da en aza indirecektir. Bununla birlikte kaplama ile kaplanan malzeme ara yüzeyinde meydana gelen maksimum gerilmeler de daha düşük düzeyde meydana gelecektir. Bu çalışmada, TiN kaplanmış HSS (Yüksek Hız Çeliği kesici takımlar için iki boyutlu gerilme analizi yapılmıştır. Takım ve talaş arasındaki sürtünme katsayının kesici yüzeyinde ve ara yüzeyde meydana gelen gerilmeler üzerindeki etkisi araştırılmıştır. Bununla birlikte, kesici takımda muhtemel hasar oluşum bölgeleri tespit edilmeye çalışılmıştır. Problemin çözümünde sonlu elemanlar metodu kullanılmış ve nümerik çözümleme için FRANC2D sonlu elemanlar paket programı seçilmiştir.

  7. Service Quality Research as a Marketing Tool for a University Library Üniversite Kütüphanesinde Bir Pazarlama Aracı Olarak Hizmet Kalitesi Araştırması

    OpenAIRE

    1999-01-01

    In this study the attitudes of library users were solicited using SERVQUAL, a marketing research technique. As the management spent all its resources for the development of the library, the impact of this policy on the service quality has been measured. At this stage the evaluation of faculty with regard to those items on the questionnaire dealing with quality of service has been tested statistically and the results evaluated accordingly. Bu çalışma için bir pazarlama araştırması tekniği olan...

  8. Terapêutica prévia com aras vs iecas : impacto no prognóstico do AVC isquémico agudo e relação com a terapêutica fibrinolítica endovenosa

    OpenAIRE

    Fonseca, Liliana Cecília Martins

    2014-01-01

    Introdução Os Inibidores da Enzima Conversora da Angiotensina (IECAs) e os Antagonistas dos Receptores da Angiotensina II (ARAs) são fármacos efectivos na prevenção primária e secundária do Acidente Vascular Cerebral isquémico (AVCi). Postula-se que a protecção vascular resultará não apenas das propriedades anti-hipertensoras mas também de um potencial efeito vasoprotector e modulador do sistema fibrinolítico destas classes de fármacos. Este trabalho tem como objectivo avaliar o impa...

  9. Comparación de la Resistencia mecánica y disipación de energía de la seda de seguridad y de la seda víscida de araña

    OpenAIRE

    Plaza Baonza, Gustavo Ramón; Musa, A.; Pérez Rigueiro, José; Pons, A.; Perea Abarca, Gracia Belén; Elices Calafat, Manuel; Guinea Tortuero, Gustavo V.

    2008-01-01

    Las fibras de seda son materiales biológicos estructurales que presentan excelentes propiedades mecánicas. Las fibras de seda del hilo de seguridad producido por las arañas presentan unas propiedades mecánicas sólo superadas –en algunas propiedades– por las fibras sintéticas de altas prestaciones. Estas excelentes propiedades, y el hecho de que la biotecnología permite en la actualidad producir fibras bioinspiradas, fundamentan el interés de estudiar las propiedades de diferentes sedas, relac...

  10. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira Biology of South American fruit fly in blueberry, blackberry, strawberry guava, and Surinam cherry crops

    Directory of Open Access Journals (Sweden)

    Maicon Bisognin

    2013-02-01

    Full Text Available O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei, amoreira‑preta (Rubus spp., araçazeiro (Psidium cattleyanum e pitangueira (Eugenia uniflora. O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC, umidade relativa (70±10% e fotófase (12 horas, para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o ciclo biológico em todos hospedeiros estudados, embora os frutos nativos (pitanga e araçá ofereçam melhores condições para seu desenvolvimento. Os parâmetros biológicos determinados para as fases imaturas foram semelhantes nos quatro hospedeiros. Insetos criados em pitanga e araçá apresentam, na fase adulta, maior período de oviposição, fecundidade e longevidade de fêmeas, em comparação aos criados em mirtilo e amora‑preta. O ritmo diário de oviposição é mais prolongado e uniforme nos insetos criados em araçá e pitanga, o que mostra que A. fraterculus está mais bem adaptada a estas frutas, nativas da região Sul.The objective of this work was to describe the biology of Anastrepha fraterculus in blueberry (Vaccinium ashei, blackberry (Rubus spp., strawberry guava (Psidium cattleyanum and Surinam cherry (Eugenia uniflora fruits. The experiment was carried out in laboratory under controlled conditions of temperature (25±2ºC, relative humidity (70±10%, and photophase (12 hours to determine insect biological parameters in immature and adult development stages. Anastrepha fraterculus finishes its biological cycle in all studied hosts; however, the Brazilian native fruits (strawberry guava and Surinam cherry provide better conditions for development of the insect. Biological parameters determined for immature development stadium were similar in the four hosts. Insects reared in Surinam cherry and strawberry guava showed, in the

  11. Akut spinal kord yaralanması sonrasi erken cerrahi dekompresyonun korpus kavernozum ve motor fonksiyon üzerine olan etkilerinin araştırılması

    Directory of Open Access Journals (Sweden)

    Okay Bulut

    2013-03-01

    Full Text Available Amaç. Akut spinal kord yaralanması sonrasi erken cerrahi dekompresyonun korpus kavernozum ve motor fonksiyon üzerine olan etkilerinin araştırılması. Yöntem. Yirmi bir adet 9-12 aylık Yeni Zelanda tipi, erişkin erkek tavşan kullanıldı. Denekler kontrol grubu (n=5, laminektomi grubu (n=6, 15 saniye kompresyon grubu (n=5 ve 60 sn kompresyon grubu (n=5 olmak üzere 4 gruba ayrıldı. Laminektomi grubuna sadece laminektomi işlemi yapıldı. Kompresyon gruplarına 60 g kapama gücü olan anevrizma klipsi ile 15 ve 60 saniye kompresyon uygulandı. 1, 3, 5 ve 7. günler Modifiye Tarlov skoru ile motor değerlendirme yapıldı. 7 gün sonunda bütün denekler sakrifiye edilerek spinal kordlarından histopatolojik çalışma ile beraber izole korpus kavernozum dokularından in vitro organ banyosunda kasılma ve gevşeme yanıtları incelendi. Bulgular. Modifiye Tarlov skoruna bakıldığında gruplar arası fark anlamlı bulundu (p0,05. Her 4 grupta da pD2 değerleri benzerdi (p>0,05. Sonuç. Akut spinal kord yaralanmasında erken cerrahi dekompresyonun etkinliğini araştırdığımız bu model ile spinal kord yaralanmasında seksüel disfonksiyonunun tedavisinde kullanılması düşünülen ilaçların in vitro ortamda ayrıntılı olarak araştırılması mümkün olabilir. Akut spinal kord yaralanmasında erken cerrahi dekompresyon motor iyileşme yönünden faydalı olabilir ve korpus kavernozum fonksiyonları açısından olumlu etkiler yapabilir. Ayrıca, akut spinal kord yaralanması geçiren hastalarda erektil disfonksiyon fosfodiesteraz tip V inhibitörleri ile çözülebilir.

  12. The examination of relationship between human values and moral maturity in adolescenceErgenlerde insani değerler ve ahlaki olgunluk arasındaki ilişkinin incelenmesi

    Directory of Open Access Journals (Sweden)

    Hakan Sarıçam

    2014-06-01

    Full Text Available This study was aim to examine both human values and moral maturity of adolescence within gender and age variables and the relationship between human values and moral maturity in adolescence. The study was conducted with 341 adolescences[N=108  (32% male, 233’ü (68% female]  attending to Agrı high schools in 2011 -2012 school year in and their age ranged from 13 to 18.  All adolescences were chosen in this study randomly. In this study The Moral Maturity Scale (Dilmaç, 2007 and The Human Values Scale (Selçuk ve Kaya, 2008 were used.  As a result of the study it was found that female adolescences got significantly higher score than male adolescences in human values and in moral maturity level  (p<.05. Moreover adolescences with 16-18 age got significantly higher score than adolescences with 13-15 age (p<.01. In this study it was also found that all gender were at Kohlberg conventional moral level. Moreover human values and its sub constructs are significantly correlated with moral maturity and five sub construct except forbearance explain 24 % variance of moral maturity  (p<.01. The findings of this research were discussed in the light of the literature and some recommendations and suggestions were presented for the further research. ÖzetBu çalışmanın amacı ergenlerdeki insani değerleri ve ahlaki olgunluğu yaş ve cinsiyet bağlamında değerlendirmektir ve beraberinde ergenlerdeki insani değerler ile ahlaki olgunluk arasındaki ilişkiyi incelemektir. Araştırma 2011-2012 eğitim öğretim döneminde Ağrı lise öğrenimine devam eden tesadüfî yöntemle seçilmiş yaşları 13 ile 18 yaş arasında değişen 341 ergen üzerinde [N=108’si (32% erkek, 233’ü (68% kız öğrenci] yürütülmüştür. Araştırmada İnsani Değerler Ölçeği (Dilmaç, 2007 Ahlaki Olgunluk Ölçeği (Şengül ve Kaya 2008 kullanılmıştır. Araştırmanın sonucunda kız öğrencilerin ahlaki olgunluk düzeyleri erkek öğrencilere g

  13. Comparación de la Resistencia mecánica y disipación de energía de la seda de seguridad y de la seda víscida de araña

    OpenAIRE

    Plaza Baonza, Gustavo Ramón; Musa, A.; Pérez Rigueiro, José; Pons, A.; Perea Abarca, Gracia Belén; Elices Calafat, Manuel; Guinea Tortuero, Gustavo V.

    2008-01-01

    Las fibras de seda son materiales biológicos estructurales que presentan excelentes propiedades mecánicas. Las fibras de seda del hilo de seguridad producido por las arañas presentan unas propiedades mecánicas sólo superadas –en algunas propiedades– por las fibras sintéticas de altas prestaciones. Estas excelentes propiedades, y el hecho de que la biotecnología permite en la actualidad producir fibras bioinspiradas, fundamentan el interés de estudiar las propiedades de diferentes sedas, relac...

  14. Magmatic garnet in the Cordilleran-type Galiléia granitoids of the Araçuaí belt (Brazil): Evidence for crystallization in the lower crust

    Science.gov (United States)

    Narduzzi, F.; Farina, F.; Stevens, G.; Lana, C.; Nalini, H. A.

    2017-06-01

    Magmatic garnet, together with epidote, is a rare mineral association in cordilleran-I-type granitoids and of special petrogenetic significance. The metaluminous to slightly peraluminous (ASI = 0.97-1.07) Galiléia batholith (Brazil) is a large (ca. 30,000 km2), Neoproterozoic (ca. 632-570 Ma) weakly foliated calc-alkaline granitoid body, characterized by the widespread occurrence of garnet (grossular 25-43 mol%) and epidote (pistacite 9.3-22.7 mol%). Field, petrographic and mineral chemical evidence indicates that garnet, epidote, biotite as well as white mica crystals (low-Si phengite), are magmatic. There is no difference in bulk rock major and trace element composition between the Galiléia granitoids and other garnet-free cordilleran-type granitoids worldwide. This evidence strongly suggests that the origin of the uncommon garnet + epidote parageneses is related to the conditions of magma crystallization, such as pressure, temperature and water content. Comparison between the mineral assemblages and mineral compositions from this study and those recorded in crystallization experiments on metaluminous calc-alkaline magmas, as well as within garnet-bearing metaluminous volcanic rocks and granitoids, indicates that the supersolidus coexistence of grossular-rich garnet, epidote and white mica is consistent with magma crystallization at pressures greater than 0.8 GPa (above 25 km depth) and at temperatures below 700 °C, i.e. near the water saturated solidus. Furthermore, resorption textures around garnet (plagioclase ± quartz coronas) and epidote suggest that these minerals have been partially consumed prior to complete crystallization. These findings demonstrate that at 630 Ma the crust underneath the Araçuaí Orogen was already at least 25-30 km thick and relatively cool. However, this contrasts with the marked high heat flow registered from the neighbour Carlos Chagas Batholith located 50 km to the east. In fact such granitoids record granulite

  15. Las arañas del bosque mesófilo de montaña de la Reserva de la Biosfera Volcán Tacaná, Chiapas, México Spiders of the cloud montane forest of the Biosphere Reserve Volcán Tacaná, Chiapas, Mexico

    OpenAIRE

    Guillermo Ibarra-Núñez; Julieta Maya-Morales; David Chamé-Vázquez

    2011-01-01

    Se realizó un estudio para conocer la fauna de arañas del suelo y del sotobosque en 2 sitios de bosque mesófilo de montaña de la Reserva de la Biosfera Volcán Tacaná. Las arañas del suelo se recolectaron con trampas de caída y mediante el procesamiento de hojarasca en embudos de Berlese; para las arañas del sotobosque se realizaron recolectas directas, por golpeo (red y manta) y con trampas de refugio. En total se registraron 32 familias, 99 géneros y 151 especies, que representan 32.5% de la...

  16. Diversidad de arañas (Araneae, Araneomorphae en la selva de montaña: un caso de estudio en las Yungas Argentinas

    Directory of Open Access Journals (Sweden)

    Rubio, Gonzalo D.

    2015-12-01

    Full Text Available The spider diversity from yungas vegetation in northwestern Argentina is studied, integrating two levels: local (α diversity, community structures and a projection at regional level of diversity (β diversity. Twenty six sites in Salta Province were sampled, representing different ambient/altitudinal strata of yungas sensu stricto (SP= pedemontane rainforest, SM= montane rainforest and BM= montane forest, yungas sensu lato (Cc-s= yungas central and southern sectors connectivity areas, YT= transitional yungas, and Chaco Serrano sites (ChS as contrast. The sampling was carried out seasonally for one year taking 10 samples of vegetation with G-Vac method. A total of 6412 spiders, 188 species and 34 families were obtained (only yungas. Theridiidae, Anyphaenidae and Linyphiidae were dominant. The highest richness was observed in Araneidae, Salticidae and Theridiidae. >em>Chibchea salta (Pholcidae, Dubiaranea msp111 (Linyphiidae and Mysmena msp110 (Mysmenidae were dominant species. Relevant differences in species composition and abundance highlighted two groups of environment (Cc-s+SP+YT+ChS vs. (SM+BM. Dictynidae, Oxyopidae and Philodromidae are associated with lower altitudinal floors (Cc-s, YT, ChS. The greatest species richness and diversity were recorded in SP and YT. The highest similarity was recorded in SM and BM; the major differences were observed in Cc-s and ChS compared with the other ambient, except with SP. Complementarity and similarity indices and coefficients revealed high β diversity in the region. Thus, it is suggested that besides reinforcing protection in transitional levels Yungas (the most disturbed and diverse habitats for spiders, conservation management in the area should be directed towards promoting natural spatial heterogeneity of Yungas, giving special emphasis to habitat mosaics that constitute each different stratum.Se estudia la diversidad de arañas de vegetación de las yungas del noroeste argentino, integrando dos

  17. The Use of Thermal Analysis and Photoacoustic Spectroscopy in the Evaluation of Maltodextrin Microencapsulation of Anthocyanins from Juçara Palm Fruit (Euterpe edulis Mart. and Their Application in Food

    Directory of Open Access Journals (Sweden)

    Ana Paula da Silva dos Passos

    2015-01-01

    Full Text Available Anthocyanins extracted from the pulp of the fruit of juçara palm (Euterpe edulis Mart. were microencapsulated with maltodextrin in order to stabilise them. Photoacoustic spectroscopy was used to investigate the photostability of the microencapsulated samples. Complementary differential scanning calorimetry and scanning electron microscopy measurements were also performed. Lyophilised extract had 14 340.2 mg/L of total anthocyanins, and the microencapsulation effi ciency of 93.6 %. Temperature analysis showed that maltodextrin conferred protection up to 70 °C for 120 min. Scanning electron microscopy showed that the microencapsulated particles had a flake-like morphology with a smooth surface, characteristic of lyophilisation processes. In addition, when added to yogurt, a red colourant was predominant in the samples at pH from 1.5 up to 5.0. Thermal analysis showed a weak interaction between the sample and the encapsulating agent, and photoacoustic data indicated the photostability of the matrix when exposed to light. Yogurts containing microencapsulated anthocyanins showed a more intense pink colour than yogurts treated with pure dye, and sensory analysis demonstrated that they can have good acceptance on the market. Microencapsulation enabled the innovative application of anthocyanins from juçara palm fruit, and complementary techniques allied to the photoacoustic spectroscopy were effective tools for its evaluation.

  18. Örgütlerde Çalışanların Yöneticilere Yönelik Güveni ve Konuyla İlgili Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Evren AYRANCI

    2008-04-01

    Full Text Available Bu araştırmada, öncelikle örgüt içindeki güven konusu ele alınmış ve konu ile ilgili çeşitli güncel araştırmalardan bahsedilmiştir. Ardından da, İstanbul-Merter'de bulunan tekstil firmalarında yapılan görüşme ve anketlerin sonuçları değerlendirilmiştir. Amaç, bu fırmalardaki çalışanların kendi bir üst amirlerine ve tepe yöneticilerine değişik konular bakımından ne kadar güvendiklerini bulmaktır. Çalışanların yöneticilerine güven duymaları, örgütlerin başarılı olmaları açısından önemlidir.

  19. Kefir Kültürünün Beyaz Peynir Yapımında Kullanılması Üzerine bir Araştırma

    OpenAIRE

    Yaygın, Hasan; Kılıç, Sevda

    1991-01-01

    Beyaz peynir yapımında kullanılacak saf kültürde yer alması gereken mikroorganizmaları saptamak amacı ile bazı çalışmalar yapılmıştır. Araştırıcıların çoğunluğu saf kültürde S. lactis, S. cremoris ve L. casei’ nin bulunması gerektiğini belirtmişlerdir. Bu çalışmada beyaz peynir yapımında saf kültür olarak kefir kültürü kullanılmıştır. Kefir kültüründe söz konusu bakterilerle beraber bazı maya ve bakteriler de bulunmaktadır. Araştırma sonuçları kefir kültürü katılan sütten yapılan beyaz pey...

  20. Label-free Protein Detection Based on the Heat-Transfer Method--A Case Study with the Peanut Allergen Ara h 1 and Aptamer-Based Synthetic Receptors.

    Science.gov (United States)

    Peeters, Marloes; van Grinsven, Bart; Cleij, Thomas J; Jiménez-Monroy, Kathia Lorena; Cornelis, Peter; Pérez-Ruiz, Elena; Wackers, Gideon; Thoelen, Ronald; De Ceuninck, Ward; Lammertyn, Jeroen; Wagner, Patrick

    2015-05-20

    Aptamers are an emerging class of molecules that, because of the development of the systematic evolution of ligands by exponential enrichment (SELEX) process, can recognize virtually every target ranging from ions, to proteins, and even whole cells. Although there are many techniques capable of detecting template molecules with aptamer-based systems with high specificity and selectivity, they lack the possibility of integrating them into a compact and portable biosensor setup. Therefore, we will present the heat-transfer method (HTM) as an interesting alternative because this offers detection in a fast and low-cost manner and has the possibility of performing experiments with a fully integrated device. This concept has been demonstrated for a variety of applications including DNA mutation analysis and screening of cancer cells. To the best our knowledge, this is the first report on HTM-based detection of proteins, in this case specifically with aptamer-type receptors. For proof-of-principle purposes, measurements will be performed with the peanut allergen Ara h 1 and results indicate detection limits in the lower nanomolar regime in buffer liquid. As a first proof-of-application, spiked Ara h 1 solutions will be studied in a food matrix of dissolved peanut butter. Reference experiments with the quartz-crystal microbalance will allow for an estimate of the areal density of aptamer molecules on the sensor-chip surface.

  1. Elma (Malus domestica Borkh.) Tohumlarında Katlama Süresince Bünyesel Büyümeyi Düzenleyici Maddelerin Değişimi Üzerine Bir Araştırma

    OpenAIRE

    BOZHÜYÜK, Mehmet Ramazan; GÜLERYÜZ, Muharrem

    2016-01-01

    Bu çalışma 2009–2011 yılları arasında Erzurum Atatürk Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü’nde yürütülmüştür. Elma tohumlarında katlama süresince bünyesel büyümeyi düzenleyici maddelerdeki değişimi belirleyebilmek amacıyla yürütülen bu araştırmada, yulaf koleoptil testleri kullanılmıştır. Katlama süresince engelleyici maddelerin düzenli bir şekilde azalma gösterdiği, büyütücü maddelerin ise katlamanın son haftalarında önemli artışlar gösterdiği belirlenmiştir. Bünyesel büyütüc...

  2. 20-25 Yaş Arası Sağlıklı Gençlerde Gri ve Beyaz Cevher Hacimlerinin İncelenmesi: Planimetrik Çalışma

    OpenAIRE

    ÇAMURDANOĞLU, Niyazi ACER - Tolga ERTEKİN - Ayşegül KÜ

    2008-01-01

    Amaç: İnsan beyninde cinsiyete ilişkin varyasyonlar birçok araştırıcı tarafından incelenmiştir. Bu çalışmaların çoğunda erkek beyin hacminin bayanlardan daha büyük olduğu bildirilmektedir. Bu çalışmanın amacı MR görüntüleri üzerinde beyaz ve gri cevher ölçümleri planimterik yöntem ile değerlendirmektir. Gereç ve Yöntemler: Bu çalışmada beyaz ve gri cevher hacimleri 20-25 yaş arası sağlıklı gençlerde incelenmiştir. T2 ağırlıklı MR görüntüleri 12 kişi üzerinde elde edilmiş, kadın ve erkeklerde ...

  3. Mathematics Anxiety and Attitudes of Secondary School Students in Rural Area: A Correlational Research [Kırsal Bölgelerdeki Ortaokul Öğrencilerinin Matematik Kaygı ve Tutumları: Korelasyonel Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Engin Karadag

    2014-12-01

    Full Text Available Correlation between mathematics anxiety and attitude of children who are educated in rural areas were analyzed in this research. Research was premeditated as a correlational design because it was presumed that there was correlation between two main variables. The population of the study was consisted of secondary school students who were educated in a region called rural areas in the central district of Meram/Konya in the school year of 2012-2013. 726 students who were educated in five secondary schools comprised of research sample which was designated as stratified sampling method according to educational regions. Research data were collected by the Mathematics Anxiety Scale, and Mathematics Attitude Scale. Correlation and multiple regression analyses were used to examine data. Findings show that correlation between anxiety and attitude of secondary school students from rural area is in negative direction. [Bu araştırmada, kırsal bölgelerde öğrenim gören ortaokul öğrencilerinin matematik kaygı ve tutumları arasındaki ilişki incelendi. Araştırma, iki temel değişken arasında bir ilişki olabileceği düşüncesinden hareketle ilişkisel desende tasarlandı. Araştırmanın evreni, 2012-2013 öğretim yılında Konya ili Meram ilçesi sınırlarında bulunan ve kırsal diye nitelendirilen ortaokullarda öğrenim gören öğrencilerden oluşmaktadır. Eğitim bölgeleri temelinde tabakalı örneklemeyle belirlenen beş ortaokulda öğrenim gören toplam 726 öğrenci araştırma örneklemini oluşturdu. Araştırma verileri, Matematik Kaygı Ölçeği ve Matematik Tutum Ölçeği kullanılarak elde edildi. Verilerin çözümlenmesinde korelasyon ve çoklu regresyon analizi kullanıldı. Bulgular kırsal bölgelerde öğrenim gören ortaokul öğrencilerinin, matematik kaygı ve tutumları arasında negatif yönde ilişki olduğunu ortaya koydu.

  4. Kadın öğretmenlerin kariyer engelleri ile iş doyum düzeyleri arasındaki ilişki / Effect of career barriers facing women teachers on their level of job satisfaction

    Directory of Open Access Journals (Sweden)

    Yusuf İNANDI

    2012-12-01

    Full Text Available ÖZETBu çalışmada, kadın öğretmenlerin kariyer engellerinin, onların iş doyum düzeyleriyle ilişkisini ve yordama düzeyini belirlemek amaçlanmaktadır. Araştırmanın çalışma grubunu Türkiye’deki 21 ilin kent merkezlerindeki ilköğretim okullarında görev yapan 1.070 kadın öğretmen oluşturmaktadır. Betimsel nitelikte olan araştırmada, veriler ‘Kadınların Kariyer Engelleri Ölçeği’ (KKEÖ ve ‘İş Doyum Ölçeği’ (İDÖ ile toplanmıştır. Araştırma sonuçları, kadınların kariyer engelleri ile iş doyum düzeyleri arasında güçlü bir ilişki ortaya koymamaktadır. Yine araştırma sonuçlarına göre kadınların kariyer engelleri, iş doyumunun alt boyutları üzerinde sınırlı etkiye sahiptir. Kadın öğretmenlerin kariyer engelleri, iş doyumunun, sırasıyla, ‘iletişim’, ‘sosyal haklar’, ‘işin yapılma şekli’, ‘çalışma koşulları’, ‘maaş’, ‘işin yapısı’, ‘ilk amirle ilişkiler’, ‘yönetim’ ve ‘çalışma arkadaşları’ alt boyutlarını etkilemektedir. Kadın öğretmenlerin iş doyumları, en fazla, ‘toplumdaki cinsiyete ilişkin kalıp yargıları, ailevi durumlar ve kadınların kendi bakış açıları’ kaynaklı engellerden etkilenmektedir. Kadın öğretmenlerin kariyer engellerinin, onların iş doyumlarını düşük düzeyde yordaması, kadınların ve erkeklerin, kadınların yönetim süreçlerinde az olma durumlarını içselleştirmelerinden kaynaklanmış olabilir.

  5. Geometria e evolução do feixe de zonas de cisalhamento Manhuaçu - Santa Margarida, Orógeno Araçuaí, MG Geometry and evolution of the Manhuaçu-Santa Margarida shear zone system, Araçuai Orogen, MG

    Directory of Open Access Journals (Sweden)

    Cláudio Maurício Teixeira da Silva

    2009-03-01

    Full Text Available Feixe de Zonas de Cisalhamento Manhuaçu-Santa Margarida de orientação geral NS estende-se por, aproximadamente, 300 km na região leste de Minas Gerais. Como uma das principais estruturas do núcleo cristalino do Orógeno Araçuaí, é constituído por um conjunto de zonas de cisalhamento dúcteis, que, em mapa, mostram traços sigmoidais. O seu segmento norte é composto por zonas de cisalhamento reversas que promovem o transporte de material em direção a oeste e, subordinadamente, por zonas transcorrentes dextrais. Os segmentos central e sul são dominados por zonas transcorrentes dextrais. O desenvolvimento do feixe deu-se em quatro fases deformacionais neoproterozóicas. A primeira fase promoveu a nucleação do conjunto de zonas reversas, que ficaram parcialmente preservadas no segmento norte do feixe. Durante a segunda fase, as zonas preexistentes experimentaram, de norte para sul, uma rotação progressiva para a vertical e para a direção NE-SW, além de intensa reativação transcorrente dextral. A terceira fase gerou zonas de cisalhamento normais de ocorrência restrita ao segmento norte. Na quarta fase, formaram-se falhas transversais e juntas. Em sua terminação sul, o feixe, dominado por zonas transcorrentes dextrais, rotaciona-se até confundir-se com as estruturas da porção NW da Faixa Ribeira. Tal fato implica que as estruturas dessa porção do feixe são de mesma idade, ou algo mais velhas que as transcorrências dextrais, que marcam o quadro tectônico do segmento NW da Faixa Ribeira.The N-S trending Manhuaçu-Santa Margarida shear zone system extends for ca. 300 km in eastern Minas Gerais. As one of the main structures of the crystalline core of the Neoproterozoic Araçuaí Orogen, the Manhuaçu-Santa Margarida system is made up of a series of ductile shear zones, which show a sigmoidal trace in map view. The northern segment of the system mainly consists of west-verging thrusts and subordinate dextral strike

  6. Estudo descritivo da estrutura populacional canina da área urbana de Araçatuba, São Paulo, Brasil, no período de 1994 a 2004 A descriptive profile of the canine population in Araçatuba, São Paulo State, Brazil, from 1994 to 2004

    Directory of Open Access Journals (Sweden)

    Andréa Maria Andrade

    2008-04-01

    Full Text Available No período de 1994 a 2004, a população canina de Araçatuba, São Paulo, Brasil, registrou duas importantes zoonoses: a raiva e a leishmaniose visceral. Analisaram-se as mudanças ocorridas nessa população durante esse período, utilizando resultados de censos caninos e de coletas censitárias de sangue realizados em 1994, 1999 e 2004. A relação cão/10 habitantes variou significativamente, passando de 1,7 em 1994 para 2,0 em 1999 e para 1,8 em 2004. A porcentagem de cães com até um ano de idade passou de 20% para 32,5% e o número de eutanásias realizadas também aumentou após 1999, com a introdução da leishmaniose visceral. O número de cães e a estrutura etária variaram nos diversos setores do município e aqueles com maior porcentagem de animais com até dois anos de idade apresentaram maior ocorrência de casos de leishmaniose visceral humana e canina. Tais resultados decorrem de ações de controle adotadas nos setores com casos humanos de leishmaniose visceral, porém, o aumento da população canina mais jovem pode resultar em aumento da susceptibilidade destes cães à doença, favorecendo a manutenção da mesma na área.From 1994 to 2004, the canine population in Araçatuba, São Paulo State, Brazil, suffered two major canine zoonoses: rabies and visceral leishmaniasis. Changes in the dog population during this period were evaluated using canine census data from 1994 and 2004 and the results of blood samples for diagnosis of canine visceral leishmaniasis in 1999. The ratio of dogs per 10 inhabitants varied from 1.7 in 1994 to 2.0 in 1999 and 1.8 in 2004. The percentage of puppies less than 1 year of age increased from 20% to 32.5%, and the number of euthanized dogs also increased after 1999, when visceral leishmaniasis began to appear. The number of dogs and percentage of puppies varied between different areas of the city, and neighborhoods with a higher percentage of young animals showed more cases of both human and

  7. Reproductive aspects of the spider crab Libinia dubia under laboratory conditions Aspectos reproductivos del cangrejo araña Libinia dubia bajo condiciones de laboratorio

    Directory of Open Access Journals (Sweden)

    Claudia Carmona-Osalde

    2012-04-01

    Full Text Available The present study documents some aspects of the reproductive biology of the spider crab Libinia dubia (H. Milne Edwards, 1834 in conditions of captivity. Forty males and 43 ovigerous females were collected with traps and transported to the laboratory, where they were kept in seawater tanks. Average egg count per female was 20,637 (±SD 12,683.33, with an 81% (±SD 4.62 viability until hatching. Males were larger and heavier than females. On average, females measured 69 mm in length × 59 mm in width. The equation for the linear relationship between female weight (W and number of eggs produced per female was: Y = -10,290.03 + 242.89 X (r² = 0.866. Egg development at a temperature of 24 ± 1 °C occurred in five stages based on coloration: stage 1 (day 1-10, bright orange; stage 2 (day 11-24, orange; stage 3 (day 25-29, gray; stage 4 (day 30-34, light gray; and stage 5 (35-37, white, visible larvae. Females spawned at least twice and were receptive to males after each spawning event, although no spermatophore transfer was observed. The adaptive capacity of L. dubia to captivity makes its use feasible in breeding under controlled conditions, suggesting that it has potential for aquaculture.El presente estudio documenta algunos aspectos acerca de la biología reproductiva del cangrejo araña Libinia dubia (H. Milne Edwards, 1834 en condiciones de cautiverio. Cuarenta machos y 43 hembras ovígeras fueron recolectados con trampas y transportados al laboratorio, donde se les mantuvo en estanques de agua marina. El promedio de huevos por hembra fue de 20,637 (±SD 12,683.33, con un 81% (±SD 4.62% de viabilidad hasta el momento de la eclosión. Los machos fueron más grandes y pesados que las hembras. Estas registraron una talla promedio de 69 mm de longitud × 59 mm de ancho. La ecuación para la regresión linear entre el peso de las hembras y el número de huevos producido por hembra fue: Y = -10,290.03 + 242.89 X (r² = 0.866. El desarrollo de los

  8. Desenvolvimento de tecnologia para a fabricação de doce em massa com araçá-pêra (Psidium acutangulum D. C. para o pequeno produtor Development of a technology for the processing of araça pera jam for small producers

    Directory of Open Access Journals (Sweden)

    Grace Maria Ferreira C. Wille

    2004-12-01

    Full Text Available O cultivo do araçá-pêra, (Psidium acutangulum D. C., fruto nativo da região Amazônica, tem despertado interesse de pesquisadores do sul do Brasil, pela possibilidade de representar uma nova oportunidade de sustento para os habitantes do litoral paranaense. O fruto apresenta boa proporção de polpa e suculência (rendimento em polpa 75,67%; porém, é excessivamente ácido para o consumo "in natura" (pH 2,77 e acidez livre 2,67%, tem aroma agradável e casca fina e amarga, sendo resistente ao corte. Possui valores de vitamina C de 60,98 mg/100g e fibra dietética de 9,6%. Objetivou-se com o presente trabalho desenvolver uma tecnologia e uma formulação para a fabricação de doce em massa do araçá pêra, que fosse simples e de fácil aplicação pelo pequeno produtor da região. Três formulações foram desenvolvidas com diferentes graus de redução da acidez do fruto. Na formulação A, foi utilizado um fruto neutro (chuchu 7% para essa finalidade, nas formulações B e C, a redução da acidez deu-se pela adição de citrato de sódio nas proporções de 65% e 40% p/p da acidez livre do fruto, respectivamente. No intuito de diminuir o tempo de cozimento da massa, foi acrescentada pectina cítrica comercial (1,5% às formulações B e C, não necessitando de sua adição na formulação A. O rendimento dos doces foi de 77,3% após cozimento da massa por 5 minutos em temperatura constante. Os doces apresentaram valores de pH / acidez de: (A: 3,1/1, 16, (B 3,57/1,62 e (C 3,36/1,70. Os doces foram submetidos às análises físico-química, microbiológica e sensorial, mostrando bom potencial para industrialização, com tecnologia facilmente aplicável pelo pequeno produtor.Araça Pera (Psidium acutangulum D.C., Myrtaceae is a native plant from the Amazon region. The fruit is very pulpy (yields 75.67% after peeling and seedling, has a delicate, pleasant flavor, a peel like fine leather, which has to be taken off for it is bitter. It

  9. Ortaçağ ve Sonrası Muş İli Yüzey Araştırması -2010- Varto

    Directory of Open Access Journals (Sweden)

    Bülent Nuri KILAVUZ

    2013-03-01

    Full Text Available AbstractThe research carried out with the permission of General Directorate of Monuments and Museums, Culture and Tourism Ministry of Turkish Republic, between 9 to 26 July 2010 in the center of Muş, Varto, Korkut and Hasköy towns.In the research, cultural assets which were three churches, a store, a fountain, monument consisting of six houses and thirteen cemeteries were identified and examined.The houses in the center of Muş are generally made of mud brick with two-storey. The houses at Minaret, the castle and the River districts are disappearing rapidly, because they remain in the center of the city. They indicate the characteristic feature of Muş especially with front-side arrangements.The tombstones found in Varto district are noteworthy with human and animal figure forms. The tombstones identified in villages of Hasköy and Korkut towns stand with the sword and shield motifs.Memorial monuments and tombstones vary in terms of materials, forms and style according to region and periods. The works identified usually belong to the Ottoman (XVI-XIX centuries period.The searched cemeteries were found to be different from each other. It is important to demonstrate the richness of the geography of Muş. Some of the motifs over the Headstones indicate differences, especially compared to other provinces in the region.Historical graves in the cemetery are rapidly destroyed by natural and human factors gradually. In addition, all new burials in cemeteries today increase the destruction.ÖzetT.C. Kültür ve Turizm Bakanlığı, Kültür Varlıkları ve Müzeler Genel Müdürlüğü’nün izinleri ile 09-26 Temmuz 2010 tarihleri arasında Muş merkez, Varto, Korkut ve Hasköy ilçelerinin köylerinde gerçekleştirilmiştir.Araştırmada; üç kilise, bir depo, bir çeşme, altı evden oluşan anıt eser ve on üç mezarlıktan oluşan kültür varlıkları tespit edilerek incelenmiştir.Muş merkezdeki evler genellikle kerpiç malzemeli ve iki

  10. Temel Tepki Öğretimi-TTÖ (Pivotal Response Treatment-PRT İle Gerçekleştirilen Etkililik Araştırmalarının Betimsel Analizi

    Directory of Open Access Journals (Sweden)

    Özlem TOPER-KORKMAZ

    2013-01-01

    Full Text Available Temel Tepki Öğretimi (TTÖ Amerika Ulusal Otizm Merkezi (NAC, 2009 tarafından yayınlanmış olan Ulusal Standartlar Raporun’da otizmli çocukların eğitimde kullanılan bilimsel dayanaklı uygulamalardan bir tanesi olarak kabul edilmektedir. TTÖ hem uygulamalı davranış analizi ilkelerine dayanan hem de doğal bir öğretim yöntemidir. Yöntem öğrenci merkezli ve aile eğitimi esaslı olup çocuklara belli temel davranışları kazandırmayı ve buna bağlı olarakta hedeflenmeyen başka alanlarda da ilerlemeler sağlanacağını savunur. Bu çalışmada TTÖ’ne yönelik bir alan yazın çalışması amaçlanmış ve bu amaçla 1995 ile 2011 yılları arasında TTÖ ile gerçekleştirilmiş olan 16 etkililik araştırmasına ulaşılarak bu araştımalar betimsel olarak analiz edilmiştir. Elde edilen bulgular TTÖ’nün okul öncesi ve ilköğretim dönemindeki otizm spektrum bozukluğu gösteren çocuklara ifade edici dil becerilerinin kazandırılmasında, sosyal becerilerin ve oyun becerilerinin öğretiminde etkili olduğunu göstermektedir Pivotal Response Treatment (PRT is one of evidence based treatments identified in the US National Autism Center's National Standards Report published in 2009. PRT is a comprehensive instructional model based on developmental approach and applied behavior analysis principles to provide learning opportunities for supporting children in their natural environments. PRT is a student-centered and parent-training based procedure and advocates that if children achieve some pivotal behaviors, it provides positive effects on untargeted behaviors and also if these pivotal behaviors are achieved once, results will be common and generalizable. The purpose of this study is, by using descriptive analysis, to review the sixteen effectiveness studies of PRT published in 1995-2011. Results of review showed that PRT is an effective procedure on language skills, social skills and play skills of preschool and

  11. Diversidad de arañas (Arachnida: Araneae asociadas con viviendas de la ciudad de México (Zona Metropolitana Spider diversity (Arachnida: Araneae associated with houses in México city (Metropolitan area

    Directory of Open Access Journals (Sweden)

    César Gabriel Durán-Barrón

    2009-04-01

    Full Text Available La ecología urbana es un área de investigación relativamente reciente. Los ecosistemas urbanos son aquellos definidos como ambientes dominados por el hombre. Con el proceso de urbanización, insectos y arácnidos silvestres aprovechan los nuevos microhábitats que las viviendas humanas ofrecen. Se revisaron arañas recolectadas dentro de 109 viviendas durante los años de 1985 a 1986, 1996 a 2001 y 2002 a 2003. Se cuantificaron 1 196 organismos , los cuales se determinaron hasta especie. Se obtuvo una lista de 25 familias, 52 géneros y 63 especies de arañas sinantrópicas. Se utilizaron 3 índices (ocupación, densidad y estacionalidad y un análisis de intervalos para sustentar la siguiente clasificación: accidentales (índice de densidad de 0-0.9, ocasionales (1-2.9, frecuentes (3.0-9.9 y comunes (10 en adelante. Se comparan las faunas de arañas sinantrópicas de 5 países del Nuevo Mundo.Urban ecology is a relatively new area of research, with urban ecosystems being defined as environments dominated by humans. Insects and arachnids are 2 groups that successfully exploit the habitats offered by human habitations. We analyzed the occurrence and densities of spiders found in houses in México City. We used material collected between 1985 and 2003. We recorded 1 196 spiders from 109 houses. The list includes 25 families, 52 genera and 63 species of synanthropic spiders. Indices of ocupation, density and seasonality, as well as rank analyses were used to make the following classification of synanthropism: accidental (density index 0-0.9, occasional (1-2.9, frequent (3.0-9.9 and common (10 or more. The synanthropic spider faunas of 5 New World countries are compared.

  12. Öğretmen algılarına göre ilk ve ortaokul yöneticilerinin demokratik tutumları ile okul kültürü arasındaki ilişki [The relationship between democratic attitudes of primary and secondary school managers and school culture as measured by teachers’ perceptions

    Directory of Open Access Journals (Sweden)

    Durdağı AKAN

    2014-10-01

    Full Text Available Bu araştırmanın amacı, öğretmen algılarına göre ilk ve ortaokul yöneticilerinin demokratik tutumları ile okul kültürü arasındaki ilişkiyi belirlemektir. Çalışma ilişkisel tarama modelinde tasarlanmıştır. Araştırmada bulundukları okulda en az üç yıl görev yapan 180 ilk ve ortaokul öğretmenine yanıtlamaları için Demokratik Tutum Ölçeği ve Örgüt Kültürü Ölçeği yöneltilmiştir. Elde edilen verilerin analizinde Aritmetik Ortalama, Standart Sapma, Pearson Momentler Çarpımı Korelasyonu ve Basit Doğrusal Regresyon Analizinden yararlanılmıştır. Bulgular, öğretmenlerin algıladıkları okul yöneticilerinin demokratik tutumları ile okul kültürü arasında istatistiksel olarak pozitif yönde anlamlı bir ilişkinin bulunduğunu göstermektedir.

  13. Ormancılık Hizmet Binalarının Tertibinde Gözönünde Tutulacak Esaslar Üzerine Araştırmalar (Investigations On The Principles To Be Considered In Designing The Forestry Administration Buildings)

    OpenAIRE

    1991-01-01

    Ormancılık Hizmet Binalarının Tertibinde Gözönünde Tutulacak Esaslar Üzerine Araştırmalar (Investigations On The Principles To Be Considered In Designing The Forestry Administration Buildings)

  14. Öğretmen adaylarının öğretmenlik mesleğine yönelik tutumları ile öğretme motivasyonları arasındaki ilişki [The relationship between pre-service teachers’ attitudes towards the teaching profession and their motivation to teach

    Directory of Open Access Journals (Sweden)

    Ahmet AYIK

    2014-04-01

    Full Text Available Bu araştırmanın amacı öğretmen adaylarının öğretmenlik mesleğine yönelik tutumları ile öğretme motivasyonları arasındaki ilişkiyi belirlemektir. Çalışmada ilişkisel tarama modeli kullanılmıştır. Araştırma, 2012-2013 eğitim öğretim yılında Atatürk Üniversitesi Kazım Karabekir Eğitim Fakültesinde öğrenim gören öğrenciler üzerinde gerçekleştirilmiştir. Araştırmanın örneklemi, basit seçkisiz örnekleme tekniği ile belirlenen 294 öğrenciden oluşmaktadır. Araştırma verileri Öğretme Motivasyonu Ölçeği ve Öğretmenlik Mesleğine Yönelik Tutum Ölçeği ile toplanmıştır. Araştırmanın amacına dayalı olarak, aritmetik ortalama, standart sapma, Pearson çarpım momentler korelasyon analizi ve çoklu regresyon analizi yöntemleri uygulanmıştır. Çalışmada elde edilen sonuçlara göre, öğretmen adaylarının öğretme motivasyonu ile öğretmenlik mesleğine yönelik tutumları arasında pozitif yönde, orta düzeyde ve anlamlı bir ilişki vardır. Diğer taraftan, öğretmen adaylarının öğretmenlik mesleğine yönelik tutumu öğretmen adaylarının öğretme motivasyonlarının, içsel ve dışsal motivasyonlarının anlamlı bir yordayıcısıdır.

  15. Firmaların uyguladığı pazarlama stratejilerinin ihracat performansları üzerindeki etkileri: Bursa ilindeki ihracat yapan tekstil firmaları üzerine bir araştırma

    OpenAIRE

    Bilgin, Hacer Nuray

    2012-01-01

    Globalleşmenin unsurlarından olan iletişim ve ulaşımdaki ilerleme ile toplumlar ürettikleri değerleri birbirleriyle iletişim kurarak ve her türlü ulaşım imkanlarını kullanarak küresel boyutta pazarlama olanaklarına kavuşmuşlardır. Bu durum, özellikle, yurtdışı piyasalara yatırım yapmak isteyen ülkelerin en çok tercih ettiği, en kolay yurtdışı pazarlara girilebilen bir yöntem olmuştur.'İşte, bu araştırma, özellikle gelişmekte olan ülkeleri cezbeden, onların ekonomilerini geliştiren, uluslarara...

  16. Hemşirelik Fakültesi Öğrencilerinin Sosyal Ağ Sitelerini Kullanma Amacı ile İletişim Becerileri Arasındaki İlişkinin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Hatice Kaya

    2015-08-01

    Full Text Available Amaç: Araştırma, hemşirelik öğrencilerinin sosyal ağ sitelerini kullanma amacı ile iletişim becerileri arasındaki ilişkiyi belirlemeye yönelik tanımlayıcı ve ilişki arayıcı türde planlandı.Yöntem: Araştırmanın evrenini, bir Hemşirelik Fakültesi’nin 2011-2012 eğitim-öğretim yılında öğrenim gören tüm öğrenciler, örneklemini ise tabakalı rastgele örnekleme yöntemi ile belirlenen 238 öğrenci oluşturdu. Kurumdan yazılı, öğrencilerden sözlü bilgilendirilmiş onam alındı. Veriler Yapılandırılmış Soru Formu, Sosyal Ağ Siteleri Kullanım Amacı Ölçeği ve İletişim Becerileri Ölçeği (İBÖ ile toplandı. Verilerin analizinde; frekans, yüzde, aritmetik ortalama, standart sapma, Independent t testi, Spearman’s rho korelasyon testleri kullanıldı.Bulgular: Yaş ortalamasının 20.67±2.67 %78.2’sinin kız, %59.7’sinin bilgisayar kullandığı, %98.3’ünün internet, %86.1’inin sosyal ağ kullandığı, sosyal ağ sitelerini kullanan öğrencilerin %47.9’unun myspace, %26.1’inin twitter, %18’inin ise facebook’u tercih ettikleri saptandı. Öğrencilerin Sosyal Ağ Siteleri Kullanım Amacı Ölçeği toplam puan ortalamasının 38.69±17.49, İBÖ toplam puan ortalamasının 104.00±19.26 olduğu görüldü. Sosyal ağ sitelerini kullanan öğrencilerin İBÖ toplam puanı arasında anlamlı bir fark bulunmazken (p>0.05, İBÖ davranışsal alt boyutunda istatistiksel açıdan anlamlı bir fark saptandı (p<0.001.Sonuçlar: Öğrencilerin iletişim becerileri orta düzeydedir. Sosyal ağ sitelerini hem iletişim, hem kendini tanıtma, hem de eğitim amaçlı kullanmaktadırlar. Sosyal ağ sitelerini etkin kullanan öğrenciler, iletişim becerilerini davranışlarına yansıtabilmektedirler. 

  17. Monitoramento costeiro das praias de São Bento do Norte e Caiçara do Norte RN: implicações para o pólo petrolífero de Guamaré

    OpenAIRE

    Tabosa, Werner Farkatt

    2002-01-01

    Esta dissertação apresenta os resultados de uma pesquisa desenvolvida na região de São Bento do Norte e Caiçara do Norte, litoral setentrional do Estado do Rio Grande do Norte, durante o período de Junho de 2000 a Agosto de 2001, no âmbito dos projetos MAMBMARÉ (CNPq/CTPETRO) e PROBRAL (CAPES/DAAD). O objetivo principal da pesquisa foi a caracterização da dinâmica sedimentar do litoral em questão, com base em dados relativos à dinâmica costeira (ventos, correntes, ondas e marés), levant...

  18. Yerli ve yabancı indirimli süpermarket zincirleri müşterilerinin bu marketleri değerlemeleri üzerine bir pilot araştırma

    OpenAIRE

    Yıldırım, Hüseyin Hakan; KURTULUŞ, Sema

    2008-01-01

    Perakendecilik sektörü dünyada ve Türkiye’de hızla gelişmektedir. Sektör geliştikçe geleneksel perakendecilik yerini modern perakendeciliğe bırakmaktadır. Gıda perakendeciliği içerisinde önemi gittikçe artan indirimli süpermarketler, ulusal veya global boyutlarda bulunmaktadır. Bu çalışmada perakendecilik ve gıda perakendeciliği kavramları, dünyada ve ülkemizdeki gelişimi, indirimli süpermarketler ve ülkemizdeki indirimli süpermarketler hakkında bilgi verilmiştir. Araştırmada yerli ve yabancı...

  19. Geocronologia U-Pb (SHRIMP) e Sm-Nd de xistos verdes basálticos do orógeno araçuaí: implicações para a idade do grupo macaúbas.

    OpenAIRE

    Babinski,Marly; Soares, Antônio Carlos Pedrosa; Gradim, Rafael Jaude; Alkmim, Fernando Flecha de; Noce, Carlos Maurício; Liu, Dunyi

    2005-01-01

    No vale do Rio Preto, setor ocidental do Orógeno Araçuaí (ca. 60 km a NE de Diamantina), ocorrem xistos verdes de filiação basáltica, cuja idade e posição estratigráfica foram motivo de controvérsia, pois os autores dividiram-se naqueles que os atribuíram ao Grupo Macaúbas (Neoproterozóico) e naqueles que os correlacionaram ao Supergrupo Espinhaço inferior (ca. 1,7 Ga). Entretanto, estudos detalhados demonstram que os xistos verdes representam derrames basálticos submarinos, sedimentação vulc...

  20. The effect of digital marketing tools on the export of the Turkish SMEsDijital pazarlama araçlarının KOBİ’lerin ihracatına etkisi

    Directory of Open Access Journals (Sweden)

    İsmail Metin

    2016-11-01

    Full Text Available Companies who want to enter the global markets apply to many methods in order to find customers. In international markets, there are modern customer finding methods in addition to the traditional ones. At this point, with the development of internet, and information and communication technologies, digital marketing tools are used in international markets with the purpose of upsizing the exporting market. In this study, a questionnaire has been made on the use of digital marketing tools in export by 162 SMEs who are a member of Ege (Aegean Exporters Association General Secretariat. As a result, it has been depicted that the SMEs give importance to digital international marketing activities in addition to the traditional international marketing activities and that they use especially Google Adwords and B2B e-market places with the purpose of exporting, online promotion and foreign market research. In this concept, the study preserves the aim of making a contribution to the literature in Turkey on this subject via both theoretical investigations and researching the situation in SMEs.   Özet İhracat yaparak küresel pazarlara açılmak isteyen işletmeler, müşteri bulabilmek için birçok yönteme başvurmaktadır. Uluslararası pazarlarda geleneksel müşteri bulma yöntemlerinin yanı sıra modern yöntemler de bulunmaktadır. Bu noktada, internet ve bilgi iletişim teknolojilerinin ilerlemesiyle dijital pazarlama araçları uluslararası pazarlarda ihracat pazarını büyütme amacıyla kullanılmaktadır. Bu çalışmada Ege İhracatçı Birlikleri Genel Sekreterliği’ne üye 162 küçük ve orta büyüklükteki işletmenin (KOBİ’nin ihracatta dijital pazarlama araçlarının kullanımı üzerine bir anket çalışması yapılmıştır. Sonuç olarak, KOBİ’lerin geleneksel uluslararası pazarlama faaliyetlerinin yanı sıra dijital uluslararası pazarlama faaliyetlerine önem verdikleri ve ihracat, online tanıtım ve dış pazar

  1. Isırgan otu (Urtica dioica) ekstresinin kolon kanseri hücre serileri üzerindeki apoptotik, antiproliferatif ve antioksidan etkilerinin araştırılması

    OpenAIRE

    KORKMAZ, Fettah

    2010-01-01

    Antioksidan ve flavonoidler bakımından zengin olan Türkiye‘de ve dünyada geleneksel tedavide, kanserden korunmada, kanser tedavisinde tamamlayıcı ve destekleyici olarak sıkça kullanılan bir bitki olan Urtica dioica üzerine literatürde bilimsel olarak in vivo ve in vitro pek çok çalıĢma olmasına karĢın, kolon kanseri üzerine etkilerini araĢtıran in vivo ve in vitro çalıĢmaların olmadığı görülmektedir.Bu tez çalıĢmasında ısırgan otunun, insan kolon kanseri HCT 116 hücre serileri üzerin...

  2. Köpeklerde üriner sistem enfeksiyonunda ultrasonografik muayene sonuçları ile idrar analiz sonuçları arasındaki ilişkiler

    OpenAIRE

    CINGI, Cenker Çağrı

    2007-01-01

    Bu çalışmada; idrar muayenesi ile ÜSE belirlenen köpeklerde idrarın fiziksel, kimyasal, mikroskobik ve mikrobiyolojik bulguları, ÜSE’den sorumlu bakteriler ve antibiyotik duyarlılıkları ile bu hastalarda üriner sistemdeki ultrasonografik bulguların yorumlanması amaçlanmıştır. Bu araştırma Ankara Üniversitesi Veteriner Fakültesi İç Hastalıkları Anabilim Dalı Kliniğine getirilen, üriner sistem enfeksiyonu olabileceği düşünülen ve idrar örnek...

  3. La explotación económica del Campo Arañuelo y la economía rural de la Tierra de Plasencia a mediados del siglo XV

    Directory of Open Access Journals (Sweden)

    Clemente Ramos, Julián

    2009-06-01

    Full Text Available The ‘Campo Arañuelo’, district of the Plasencia's land, until final of the century XV bill with a scarce population and abundant grasses. Neighbors of La Vera, the area Almonte-Tajo or of other districts of the term they move with their livestocks or they establish a second vicinity in her. The concession of Plasencia to Pedro of Stúñiga in 1442, the existence of numerous seignorials estates in the term of Plasencia and a joint of demographic and agrarian growth will originate very important disputes on its use and exploitation by the middle of the XV century. This conflict will allow to have very important information on the trade of the cereal, the cattle cabins or the seasonal displacements in the term of Plasencia.

    El Campo Arañuelo, comarca de la tierra de Plasencia, contaba hasta finales del siglo XV con una escasa población y abundantes pastos. Vecinos de La Vera, la zona Almonte-Tajo o de otras comarcas del término se desplazan con sus ganados o establecen una segunda vecindad en ella. La concesión de Plasencia a Pedro de Estúñiga en 1442, la existencia de numerosos señoríos en el término placentino y una coyuntura de crecimiento demográfico y agrario van a originar disputas muy importantes sobre su aprovechamiento y explotación a mediados del siglo XV. Esta conflictividad nos permitirá disponer de información muy importante sobre el comercio del cereal, las cabañas ganaderas o los desplazamientos estacionales en el término de Plasencia.

  4. Yapay Sinir Ağları ile Çok Aşamalı Fiyat Tahmini: BIST30 Senetleri Üzerine Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Mehmet Özçalıcı

    2016-12-01

    Full Text Available Zaman serileri tahmini literatürde ilgi gören bir konudur. Hisse senedi fiyatları da zaman serisi oluşturmaktadır ve hisse senedi fiyat tahmininin birçok avantajlı tarafı mevcuttur. Literatürde hisse senedi fiyat tahmini üzerine yapılan çalışmalarda genellikle bir gün sonraki fiyatların veya eğilimin tahmin edildiği görülmektedir. Bu çalışmada literatürden farklı olarak 1 gün sonraki, 2 gün sonraki ve 20 gün sonraki hisse senedi kapanış fiyatları tahmin edilmiştir. Veri seti olarak Borsa Istanbul 30 endeksinde listelenen hisse senetlerinin Ocak 2010 ile Kasım 2015 tarihleri arasındaki fiyat ve hacim bilgileri kullanılmış ve girdi olarak teknik göstergeler hesaplanmıştır. Çalışmada tahmin yöntemi olarak yapay sinir ağları kullanılmıştır. Sonuçta hisse senetlerindeki fiyat hareketleri %72.88 e varan oranda 20 gün önceden doğru bir şekilde tahmin edilebilmiştir. Araştırmada elde edilen bulgular, orta dönemli fiyat tahminlerinin de derinlemesine inceleme gerektiren önemli bir potansiyele sahip olduğu sonucunu ortaya çıkarmaktadır.

  5. : İşlevi Kaçma Yoluyla Olumsuz Pekiştirme Olan Problem Davranışların Yer Aldığı Araştırmaların incelenmesi

    Directory of Open Access Journals (Sweden)

    Şerife Yücesoy

    2002-07-01

    Full Text Available Problem davranış/ar özürlü ve özürlü olmayan bireylerde oldukça sık görülmektedir. Problem davranışlar bireyler tarafından istendik bir sonuca ulaşmak için gerçekleştirilirler ve belirli bir işleve hizmet ederler. Bu çalışmada, işlevi kaçma yoluyla olumsuz pekiştirilen problem davranışlara ilişkin gerçekleştirilmiş çalışmalar denek, ortam, süre, problem davranış, veri toplama, test oturumları, araştırma modeli, güvenirlik, bulgular ve davranış değiştirme teknikleri açısından incelenmiştir. Buna ek olarak, ileri araştırmalara yönelik öneriler sunulmuştur. Individuals with and without disabilities display problem behaviors frequently. Problem behaviors are displayed in order to reach and expected result, and serve a specific function. This study examines the research conducted on problem behaviors, whose function is escape in terms of subjects, settings, duration, problem behaviors, data collection, test conditions, research model, reliability, results and behavior changing techniques. In addition. some suggestions regarding future studies are provided as well.

  6. Kuş Gölü (Bandırma Makrobentik Omurgasız Faunası Hakkında Bir Ön Araştırma.

    Directory of Open Access Journals (Sweden)

    Süleyman Balık

    2015-12-01

    Full Text Available Kuş Gölü’nün makrobentik omurgasız faunasını belirlemek amacıyla 1987 ve 1988 yılları arasında aylık periyotlar halinde, bir yıl süre ile 5 istasyonda arazi çalışması yapılmıştır. Ekman grab ile alınan çamur örnekleri 500 μm göz açıklığındaki elekten geçirilmiş ve örnekler %4’lük formaldehit solüsyonunda tespit edilmiştir. Araştırma sonucunda, Oligochaeta sınıfından 10, Chironomidae familyasından 5 ve Ceratopogonidae familyasından 1 olmak üzere toplam 16 takson tespit edilmiştir. Kuş gölü’nde metrekarede ortalama 6759 birey tespit edilmiş, grupların oransal dağılımında %81,94 ile Oligochaeta bireylerinin en baskın grubu oluşturduğu, bu grubu Chironomidae (%17,90 ve Ceratopogonidae (%0,16 larvalarının takip ettiği saptanmıştır. Tespit edilen grupların istasyonlara göre oransal dağılımlarında ise, 1. istasyonun en zengin (%28,71, 4. istasyonun en fakir (%12,77 istasyon olduğu gözlenmiştir

  7. Conservação pós-colheita de frutos de araçá-vermelho em função do estádio de maturação e temperatura de armazenamento

    Directory of Open Access Journals (Sweden)

    Amanda Maria Furtado Drehmer

    2008-06-01

    Full Text Available O presente trabalho objetivou estudar os efeitos do estádio de maturação e temperatura de armazenamento sobre a fisiologia de araçá-vermelho. Frutos colhidos nos estádios de maturação verde (coloração vermelha da epiderme 50% foram armazenados nas temperaturas de 0; 5; 10; 20 e 30ºC (UR de 85-90% para a quantificação das taxas respiratórias e alterações na coloração da epiderme (L='lightness' e hº=ângulo 'hue'. Houve aumento substancial na taxa respiratória com o aumento na temperatura de armazenamento de 0 a 30ºC, com Q10 @ 2,7. Frutos colhidos no estádio de maturação verde apresentaram, em relação a frutos colhidos no estádio maduro, sensível redução na qualidade, caracterizada pelo menor teor de sólidos solúveis e maior acidez, porém melhor retenção de firmeza e de coloração da epiderme (com menor alteração na coloração de verde para vermelho, especialmente quando armazenados a 0ºC, e menor incidência de podridões. Frutos de araçá-vermelho devem ser colhidos no estádio maduro e imediatamente armazenados a temperaturas próximas de 0ºC, visando a prolongar a sua conservação, já que apresentam elevadas taxas respiratórias e rápido amadurecimento à temperatura ambiente (20ºC.

  8. Domestication of the high-sugar-tolerant Mortierella alpina on arachidonic acid (ARA) production%花生四烯酸产生菌高山被孢霉的高糖驯化研究

    Institute of Scientific and Technical Information of China (English)

    曾思钰; 凌雪萍; 张长杰; 卢英华

    2012-01-01

    [目的]提高花生四烯酸(Arachidonic acid,ARA)产量,克服ARA产生菌高山被孢霉(Mortierella alpina)在长期的保存及使用过程中易受到外界条件影响发生退化,从而导致菌种耗糖量降低、影响菌种摄入营养的能力和不利于工业化生产的缺点.[方法]首先采用固体培养基驯化,将菌种逐级涂布于梯度高糖PDA平板(含糖量分别为2%、5%、7%、10%和15%)培养,挑选经固体驯化后能耐受10%高糖浓度平板的菌种,转接到两种含不同氮源的梯度高糖(含糖量分别为3%、4%、5%和6%)液体培养基中进行驯化,最后对驯化后的菌种进行2L发酵罐放大实验.[结果]当培养基中以酵母粉为氮源时,驯化后菌体的最高耗糖量由3 g/(L·d)提高到12 g/(L·d);当培养基中以玉米浆为氮源时,驯化后菌体的最高耗糖量由7 g/(L·d)提高到12 g/(L·d).摇瓶驯化实验结果表明以玉米浆为氮源驯化的菌种发酵效果较好,发酵罐实验结果显示菌体生物量为50 g/L,总油脂为18 g/L,目的产物ARA产量为8g/L.相比未驯化之前的发酵结果,生物量和总油脂含量提高了近3倍,ARA产量提高了近4倍.[结论]经过高糖驯化,菌种的耗糖能力得到提高,生物量、总油脂及ARA的产量也都有所增加,从而可以使菌种在保存和使用过程中不易退化,保持稳定.%[Objective] In order to improve arachidonia acid (ARA) production, and prevent the degeneration of ARA-producing strain Mortierella alpina in long-term culture preservation and cultivation, which could lead to low consumption rate of substrates like carbon source. [Methods] Mortierella alpina strain was first domesticated in high-sugar PDA plate with gradient sugar content (2%, 5%, 7%, 10% and 15%). The strain which grew better in the solid medium containing 10% sugar was then selected and transferred to two liquid high-sugar media with different nitrogen sources to domesticate. The gradient sugar

  9. Batman’da Yeni Bir Keşif: Deraser (Arık Mağara Resimleri A New Discovery In Batman Province: Prehistoric Cave Paintings Of Deraser (Arik

    Directory of Open Access Journals (Sweden)

    Ersoy SOYDAN

    2013-07-01

    kurulmuştur.Tarihi yerleşim birimlerinden biri de bugün Batman ilinin Gercüşilçesine bağlı Deraser (Arık mezrasıdır. Burada çok sayıda tarihi kalıntıbulunmaktadır. Gercüş ilçesine yaklaşık 20 kilometre uzaklıktabulunan ve Dicle nehrine hakim bir noktada kurulan Deraser (Arıkmezrasında çeşitli yapı kalıntıları, kayalara oyulmuş mezarlar vemağara duvarlarına çizilmiş tarihöncesi olduğu tahmin edilen resimlerbulunmaktadır. Anadolu’da kayalara çizilmiş tarihöncesi resimlerebirçok yerde rastlanmaktadır ancak kırmızı ve siyah boyayla freskotekniğiyle yapılmış resimler nadir olarak görülmektedir. Bu nedenleDeraser’deki (Arık Berha Nivisandi (Yazılı Mağara olarak adlandırılantoprak ya da kök boyayla yapılmış kırmızı ve siyah renkli resimlerinbulunması önemli bir gelişmedir. Buradaki mağara resimlerindegenellikle evcil hayvan tasvirleri, vahşi hayvan mücadeleleri ve kadınlıerkeklişenlik sahneleri bulunmaktadır. Dünyanın pek çok yerindebulunan tarihöncesi mağara resimleri ile tematik olarak benzeşmeklebirlikte çizim tekniği bakımından özgün bir biçime sahiptir.Çalışmamızda daha önce bölgede çalışan araştırmacılar tarafındançeşitli nedenlerle farkına varılamayan Deraser (Arık mağaralardanderlenmiş resimlere ve bu resimlerle ilgili olarak yapılan araştırmasonuçlarına yer verilecektir.

  10. Manoel Ferreira de Araújo Guimarães, a Academia Real Militar do Rio de Janeiro e a definição de um gênero científico no Brasil em inícios do século XIX Manoel Ferreira de Araújo Guimarães, the Royal Military Academy of Rio de Janeiro and the definition of a scientific genre in Brazil in the early 19th century

    Directory of Open Access Journals (Sweden)

    Luís Miguel Carolino

    2012-12-01

    Full Text Available Na sequência da transferência da Corte portuguesa para o Rio de Janeiro, em 1807/1808, foi fundada a Academia Real Militar do Rio de Janeiro, em 1810, com o objetivo de formar a elite técnico-científica do Estado joanino. Orientada por tais objetivos educativos, essa escola superior de ensino técnico instituiu, no Brasil, um modelo de ciência e de ensino científico de matriz politécnica. A astronomia foi um exemplo dessa tendência. Num período em que a astronomia esférica se ia tornando crescentemente uma disciplina autônoma, Manoel Ferreira de Araújo Guimarães, professor de astronomia na Academia Real Militar do Rio de Janeiro, decidiu orientar o seu curso para esse ramo aplicado da astronomia e escreveu aquele que viria a tornar-se um dos primeiros manuais de astronomia esférica, um gênero maior da literatura científica do século XIX.Following the transfer of the Portuguese court to Rio de Janeiro in 1807-8, the Royal Military Academy of Rio de Janeiro was created in 1810 to train the state's technical and scientific elite. Guided by its educational aims, this higher education technical school institutionalized a polytechnic model of science and science teaching in Brazil. Astronomy is a case in point. In a period when spherical astronomy was becoming an autonomous discipline, Manoel Ferreira de Araújo Guimarães, professor of astronomy at the Royal Military Academy of Rio de Janeiro, decided to orient his course to this applied branch of astronomy and authored what was to become one of the first textbooks on spherical astronomy, a major genre of scientific literature in the nineteenth century.

  11. Türkçe Öğretmenlerinin Okuma Yöntem-Tekniklerini ve Araç-Gereçlerini Kullanma Durumları The Using Conditions Of In Reading Methods-Techniques And Materials Of The Turkish Teachers'

    Directory of Open Access Journals (Sweden)

    Fulya TOPÇUOĞLU ÜNAL

    2013-07-01

    questions methods are almost at the same rate; reading methods such as verbal choir, reading theatre and memorizing are used less frequently.Additionally, teachers use the teachers’ guidebook with 93% and the course book with 92%. Usage rates of spelling dictionary and dictionaries are very close to each other between the rates of 88-83%; and use of extracurricular reading books remains at 75%. Meanwhile, it was identified that participants do not use the technology in the reading field of Turkish language course, as the rate of use is marked at 67%.Silent and oral reading method emerges as the most used methods for male participants. While oral reading is also the most used method for female participants, association with text emerges as the second most used method. Reading Theater and memorizing methods are the two least used methods for both male and female participants. Türkçe dersi çok yönlü bir derstir. Bu bakımdan, bu dersle ilgili çalışmalar sırasında birden çok değişik yöntem ve tekniğe başvurulması hem doğal, hem de zorunludur. Türkçe Dersi Öğretim Programı’nda okuma, diğer becerilerin geliştirilmesi için temel olarak görülmüştür.Öğrenmenin etkili ve kalıcı olabilmesi için, öğrendiklerimiz birçok duyumuza hitap etmelidir. Bu anlamda okuma alanındaki yöntem-teknik ve araç-gereçler; analiz yapan, sorgulayan, sınıflayan, üreten bireyler olarak yetiştirilmemiz için kullanılmalıdır. Türkçe öğretimi, yalnızca dilsel metinlerle yürütülen bir süreç olmaktan çıkarılıp görsel, işitsel metinlerle de desteklenerek yürütülmelidir.Bu araştırmanın amacı, Türkçe öğretmenlerinin 7 ve 8. sınıf Türkçe öğretim programında yer alan okuma alanında kullanılması önerilen yöntem-teknikleri ve araç-gereçleri kullanma durumlarının belirlenmesidir. Araştırma tarama modelindedir. Araştırmanın örneklemi Bursa il merkezinde görev yapan 298 öğretmenden oluşmaktadır. Örnekleme y

  12. Estudio comparativo de las comunidades de arañas (Araneae en cultivos de algodón convencional y transgénico en el departamento del Tolima, Colombia

    Directory of Open Access Journals (Sweden)

    Flórez Daza Eduardo

    2005-07-01

    Full Text Available Los cultivos son agroecosistemas que actúan como reservorio de una gran diversidad de fauna en la que se incluyen las arañas. La importancia de su estudio radica en la necesidad de conocer más sobre su biología y relaciones ecológicas con el medio, para así aprovecharla como herramienta en el control biológico de plagas. Como una herramienta adicional, el control genético que consiste en la modificación de la información genética para conseguir unos rasgos deseados, ha tomado
    fuerza en la última década, generando un aumento en la producción a nivel nacional. La variedad de algodón Bt (Bollgard de la compañía Monsanto, produce una proteína para el control de insectos (Cry1Ac derivada de la bacteria Bacillus thuringiensis subsp. kurstaki, utilizada para el control de insectos plaga, especialmente lepidópteros. Estas proteínas han demostrado ser específicas para las plagas a las cuales están dirigidas y parecen no tener efectos nocivos para organismos benéficos. En vista de la necesidad de evaluar el efecto de esta variedad mejorada de algodón sobre la araneofauna, se llevó a cabo el presente estudio, haciendo una comparación anivel de comunidades. Para esto se llevó a cabo una fase inicial de campo, en la granja Los Marañones entre los meses de mayo y julio de 2004 cubriendo las etapas de formación de estructuras florales y maduración de un cultivo de algodón convencional y un cultivo de algodón genéticamente
    modificado (Bollgard en el municipio de Espinal, departamento del Tolima, Colombia. Se colectaron un total de 2.764 arañas; 1.259 fueron colectadas en el algodón convencional y 1.505 en el algodón Bt. Se registraron 83 morfoespecies en 17 familias para el algodón convencional y 86 morfoespecies en 20 familias para el algodón Bt. Las familias más abundantes fueron Theridiidae y Linyphiidae para los dos cultivos. No hubo diferencias estadísticamente significativas entre las diversidades de los

  13. Öğretmen adaylarının eğitsel internet kullanım becerileri ile bilgi edinme becerileri arasındaki ilişki düzeyi [The relationship between teacher candidates’ educational internet-use skills and their knowledge acquisition skills

    Directory of Open Access Journals (Sweden)

    Ahmet KAYA

    2014-04-01

    Full Text Available Bu çalışmanın amacı, öğretmen adaylarının eğitsel internet kullanım becerileri ile bilgi edinme becerileri arasındaki ilişkiyi belirlemektir. Araştırma, tarama modelinde desenlenmiştir. Çalışmada veriler, geçerlik ve güvenirliği sağlanmış iki ölçek kullanılarak toplanmıştır. Araştırmanın çalışma evrenini, 2012-2013 eğitim öğretim yılında Harran Üniversitesi Pedagojik Formasyon Programına kayıtlı 185 öğretmen adayı oluşturmuştur. Araştırmada, öğretmen adaylarının eğitsel internet kullanım becerilerinin yeterli düzeyde, bilgi edinme düzeylerinin ise orta düzeyde olduğu belirlenmiştir. Öğretmen adaylarının eğitsel internet kullanım düzeyleri cinsiyete göre, erkekler lehinde anlamlı düzeyde farklılık gösterirken; bilgi edinme beceri düzeyleri ise, interneti kullanma amacına göre, interneti araştırma amaçlı olarak kullananların lehinde anlamlı düzeyde farklılık göstermiştir. Son olarak, öğretmen adaylarının eğitsel internet kullanma becerileri ile bilgi edinme becerileri arasında pozitif yönde orta düzeyde bir ilişkinin olduğu belirlenmiştir.

  14. Eğitim yöneticilerinin hizmetkâr liderlik yeterlikleri ile farklılıkları yönetme becerileri arasındaki ilişki [The relationship between servant leadership competences and diversity management skills among education managers

    Directory of Open Access Journals (Sweden)

    Refik BALAY

    2014-04-01

    Full Text Available Bu çalışmanın amacı, öğretmen ve yönetici görüşlerine göre eğitim kurumlarında görev yapan yöneticilerin hizmetkâr liderlik yeterlikleri ile farklılıkları yönetme becerileri arasındaki ilişkiyi belirlemektir. Araştırma, tarama modelinde desenlenmiştir. Çalışmada veriler, Hizmetkâr Liderlik Ölçeği (HLÖ ve Farklılıkların Yönetimi Ölçeği (FYÖ ile toplanmıştır. Araştırmanın örneklemi 90 yönetici ve 172 öğretmen olmak üzere 262 kişiden oluşmaktadır. Araştırmada, yöneticilerin hizmetkâr liderlik yeterlikleri ile farklılıkları yönetme becerilerinin orta düzeyde olduğu belirlenmiştir. Araştırma sonucunda katılımcı algılarına göre, eğitim yöneticilerinin hizmetkâr liderlik yeterliklerinin, görev türü ve yaş değişkenlerine göre anlamlı düzeyde farklılık gösterdiği; farklılıkları yönetme becerilerinin ise cinsiyet, görev türü, yaş, mesleki hizmet yılı ve kurumda bulunan çalışan sayısı değişkenlerine göre anlamlı düzeyde farklılık gösterdiği tespit edilmiştir. Son olarak, yöneticilerin hizmetkâr liderlik yeterlikleri ile farklılıkları yönetme becerileri arasında ortanın üstünde, yüksek düzeye yakın pozitif yönde bir ilişkinin olduğu belirlenmiştir.

  15. The relationship between job satisfaction of teachers and their perception of transformational leadership characteristics for their school administratorsÖğretmenlerin iş doyumu ile yöneticileri için algıladıkları dönüşümcü liderlik özellikleri arasındaki ilişki

    Directory of Open Access Journals (Sweden)

    Türkay Nuri Tok

    2013-04-01

    teachers pleased of their job, doing their job fondly and loving their jobs more than others. Özet Bu araştırmanın amacı, öğretmenlerin iş doyumları (İD ile yöneticilerinin dönüşümcü liderlik (DL stilleri arasındaki ilişkiyi incelemektir. Araştırmada tarama modeli kullanılmıştır. Araştırmada üç bölümden (Kişisel Bilgiler, Dönüşümcü Liderlik Anketi, İş Doyum Anketi oluşan veri toplama aracı kullanılmıştır. Araştırma için kullanılan anket, Denizli İli Merkezi’nde, Milli Eğitim Bakanlığı’na bağlı ilköğretim okulları arasından örneklem olarak alınan 19 okulda uygulanmıştır. Bu okullarda 328 öğretmene uygulanan veri toplama aracı değerlendirmeye alınmıştır. Araştırmada elde edilen sonuçlar frekans, ortalama değer ve standart sapma ile demografik sorulardan elde edilen yanıtlar ise yüzde ve frekans dağılımları ile sunulmuştur. Öğretmenlerin ölçeklerden elde ettikleri puanların cinsiyet, branş ve eğitim durumu özelliklerine göre farklılık gösterip göstermediği t-testi ile kıdem ve yaş özelliklerine göre farklılık gösterip göstermediği ise One–Way ANOVA ve The Kruskall-Wallis H Testi ile test edilmiştir. One–Way ANOVA Varyans Analizi sonrasında, kategoriler arasında farklılık görülmemiştir. The Kruskall-Wallis H Testisonrasında ise, farklılığın hangi kategorilerde arasında belirlemek amacıyla Mann–Whitney U testi kullanılmıştır.DL ile İD arasındaki ilişkiyi belirlemek amacıyla Spearman Korelasyon Testi kullanılmıştır. Araştırma sonucunda okul yöneticilerinin DL özellikleri ile ilköğretim okullarında görev yapan öğretmenlerin İD arasında, düşük düzeyde ilişki olduğu belirlenmiştir. Bu araştırmadaki öğretmen görüşlerine göre, okul yöneticilerinin DL davranışlarını gerçekleştirmede yeterli olmaları, bu liderlik davranışlarını sıklıkla sergilemeleri; öğretmenlerin işlerinden memnun olmalarını, i

  16. Tüketicilerin Helal Tüketim Davranışlarının Belirleyicileri: Planlı Davranış Teorisi Çerçevesinde Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Abdülkadir ÖZTÜRK

    2016-11-01

    Full Text Available Özet Bu çalışmanın amacı, tüketicilerin helal kavramını nasıl algıladıkları ve tüketicilerin helal özellikli ürünleri satın alma davranışlarını incelemektir. Sosyal bilimlerde insan davranışlarını incelemede sıklıkla kullanılan Planlı Davranış Teorisi (PDT çerçevesinde araştırma yürütülmüştür. Tüketicilerin helal ürünlere yönelik tutumları, çevrelerindeki insanların tepkileri ve algılanan davranışsal kontrolün davranışsal niyet ve fiili davranış üzerindeki etkileri araştırılmıştır. Ayrıca tüketicilerin helal ürün kavramını nasıl tanımladıkları ve farklı ürün gruplarına göre bu tanımlamaların değişip değişmediği incelenmiştir. Bu amaçlar kapsamında helal tüketim ile ilgili sosyal medya üzerinde oluşturulmuş bir grubun üyelerine yönelik online olarak bir anket hazırlanmış ve gerekli veriler toplanmıştır. 202 tüketiciden elde edilen veriler üzerinde analizler yapılmıştır. PDT esas alınarak geliştirilen araştırma modelinde yer alan değişkenlerin tüketicilerin helal ürün satın almaya yönelik niyetlerini ve davranışlarını açıkladığı tespit edilmiştir. Davranışsal niyet üzerinde tüketicilerin geliştirdikleri tutum, fiili davranış üzerinde ise niyetlerin en belirleyici değişkenler oldukları tespit edilmiştir. Gıda, kozmetik ve temizlik ürün gruplarında katılımcıların en çok gıda ürünlerinin helal özelliği taşıması konusunda hassasiyet taşıdıkları gözlemlenmiştir. Helal ürünlerin, İslam dininin kurallarına uygun olarak üretilmiş olmasının yanında tüketiciler tarafından güvenilir, sağlıklı ve temiz olarak algılandığı tespit edilmiştir. Anahtar Kelimeler: Helal tüketim, Planlı Davranış Teorisi.

  17. Intelligent Information Retrieval Needs Smart Tools and Supporting Standards = Akıllı Bilgi Erişim, Akıllı Araçlar ve Onları Destekleyen Standartlar İster

    Directory of Open Access Journals (Sweden)

    Gilchrist, Alan

    2010-04-01

    Full Text Available "World-wide-web"de Google, etkin ve popüler bir arama motorudur. Fakat birçoğu Web'de bile olmayan bilgilere erişme ve onları paylaşma açılarından ortaya çıkan büyük ve gittikçe büyüyen sorunun varlığıyla, kişileri körleştirme etkisine sahip olmaya başlamıştır. Bu sorunla etkin bir şekilde baş etmek istiyorsak, geniş bir bilgi süreçleme standardına ve araçlarına ihtiyacımız vardır. Bu anlayışı örneksemek üzere, çalışmada, kendi arasında işlemlenebilen ve yapısallaştırılmış sözcük dağarına ilişkin yeni Britanya Standartları'na ve ortaya konulmaya başlanan Uluslararası Standartlara ve ayrıca uygulama ve geliştirme yolları açık olan bazı sistemlere kısa değinmeler yapılmaktadır. Though Google is an eff ective and popular search engine for locating information on the World Wide Web, it has tended to have the eff ect of blinding people to the enormous and growing problem of accessing and sharing digital information, much of which is not even available on the Web. If we are to eff ectively tackle this problem we will need a range of information processing standards and tools. To illustrate this belief, brief mention is made of the new British Standards and emerging International Standards dealing with structured vocabularies and interoperability; and of some systems which are leading the way in their application and development.

  18. 款冬花多糖硫酸化修饰条件的优化%Optimization of the sulfated modification of polysaccharides from Tussilago f ar f ara

    Institute of Scientific and Technical Information of China (English)

    张琳; 张善文; 赵鹏

    2013-01-01

    Objective To optimize the sulfated modification conditions of Tussilago farfara polysaccharides (TFPs) and to study the antioxidant activity .Methods Polysaccharides from Tussilago f ar f ara was sulfated by chlorosulfonic acid-pyridine method . According to the degree of substitution ,response surface methodology was adopted to optimize the sulfated modification process . The effects of sulfated Tussilago f arf ara polysaccharides (TFPsS) on scavenging DPPH · was determined .Results The result showed that 3 .6 volume ratio of pyridine and chlorosulfonic acid ,95 ℃ ,2 .4 h were the optimal conditions .Compared with TFPs ,the effect of TFPsS on scavenging DPPH · was improved .Conclusion The chlorosulfonic acid-pyridine method was effec-tive and TFPsS of scavenging DPPH · was improved .%目的对款冬花多糖(T FPs )进行硫酸酯化修饰最优化工艺的研究,并初步探讨其抗氧化活性。方法采用氯磺酸-吡啶法,制备款冬花硫酸酯化多糖(T FPsS );以取代度为指标,采用响应面法对制备工艺条件进行优化;并进行 T FPsS清除自由基DPPH ·实验,研究其体外抗氧化活性。结果最佳酯化条件为:酯化试剂体积比为3.6,反应温度为95℃,时间为2.4 h。T FPsS具有较好的清除能力;与T FPs相比,清除羟自由基的能力显著提高。结论氯磺酸-吡啶法适用于款冬花多糖的硫酸酯化修饰,对其进行硫酸酯化修饰有助于提高抗氧化能力。

  19. Gruplar arası temas, kaygı ve yanlılığın sosyal mesafeye etkisi: Türk ve Kürt kökenli gruplar üzerine bir çalışma

    OpenAIRE

    GÜLER, Meltem

    2013-01-01

    Son altmış yıldır gruplar arasındaki ilişkiler incelenmektedir. Allport (1954), Amir (1969), Şerif (1966), LeVine ve Campbell (1972) ve Tajfel ve Turner (1979) gruplararası ilişkilere yoğunlaşan ilk isimler olmuştur. 1980’lerde Tajfel ve Turner (1979) Sosyal Kimlik Kuramını ve izleyen yıllarda Turner ve arkadaşları (1987) Kendini Sınıflandırma Kuramını ortaya koyarak gruplar arasındaki ilişkileri daha geniş bir bakış açısından ele alınmasını sağlamıştır. Sosyal Kimlik Kuramı, sosyal ...

  20. Tropînota (Epicometïs ) Hırta (Poda ) (Coleoptera , Scarabeıdae) ’Nin Tokat Ve Çevresindeki Konukçuları, Yayılışı, Zarar Düzeyi, Bazı Biyolojik Özellikleri Üzerine Araştırmalar

    OpenAIRE

    KARA, Kenan

    1995-01-01

    Bu çalışmada Tokat ve çevresinde meyve ağaçlarının çiçeklerini yiyerek zarar yapan Tropinota (Epicometis) hirta( Poda) (Coieoptera, Scarabeidae)’nm konukçuları, zarar düzeyi ve bazı biyolojik özellikleri üzerinde araştırmalar yapılmıştır. Tropinota hirtaerginlerinin Tokat merkez ve Kazova’da başta armut olmak üzere elma, kiraz, idris ve şeftali ağaçlarında zarar yaptığı, böceğin armut bahçelerindeki zararı oramnm % 90-100 arasında değiştiği saptanmiştır. Laboratuvarda yapılan çalışmalarda d...

  1. Kahramanmaraş İli Badem Ağaçlarında Bakla Zınnı (Epicometis Hirta (Poda, 1761)) (Coleoptera: Scarabaeidae)’nın Farklı Tuzaklarla Yakalanması Üzerine Araştırma

    OpenAIRE

    ASLAN, Özcan; Aslan, Mahmut

    2016-01-01

    Özet: Kahramanmaraş ili Dulkadiroğlu ilçesine bağlı Karacasu Yöresi sınırları içerisinde bulunan 172 dekar Ferraduel çeşidi badem (Prunus amygdalus Batsch) bahçesinde Şubat 2015 ile Haziran 2015 tarihleri arasında farklı tuzak tipleri ile Epicometis hirta (Poda, 1761)’nın yakalanma etkinliğinin araştırılması üzerine yapılan çalışmayla, farklı tipteki tuzakların etkisi ortaya konulmuştur. Çalışmada 4 tuzak tipi kullanılmıştır. Toplam 35 tuzakla yapılan 12 sayım sonucunda 8.762 adet Epicometis ...

  2. Molecular markers for population genetic analyses in the family Psittacidae (Psittaciformes, Aves

    Directory of Open Access Journals (Sweden)

    Patrícia J. Faria

    2006-01-01

    Full Text Available The selection of molecular markers for population studies is an important tool for biodiversity conservation. The family Psittacidae contains many endangered and vulnerable species and we tested three kinds of molecular markers for their potential use in population studies of five psitacid species: 43 hyacinth macaws (Anodorhynchus hyacinthinus, 42 blue-and-yellow macaws (Ara ararauna, 23 red-and-green macaws (Ara chloroptera, 19 red-spectacled amazons (Amazona pretrei; and 18 red-tailed amazons (Amazona brasiliensis. We tested 21 clones from a genomic library of golden conure (Guarouba guarouba minisatellites and 12 pairs of microsatellite primers developed for the domestic chicken (Gallus gallus and A. hyacinthinus. We also tested seven tetranucleotide repeat primers for their ability to amplify regions between microsatellite loci (inter simple sequence repeats, ISSRs. We were able to select seven markers that were variable in different degrees for three species (A. hyacinthinus, A. chloroptera and A. ararauna. The mini and microsatellites produced more polymorphic patterns than the ISSRs. The genetic variability of the species studied seems to be correlated with their endangered status.

  3. Okul Müdürlerinin İletişim Becerileri İle Öğretmenlerin Genel ve Örgütsel Sinizm Tutumları Arasındaki İlişkilerin İncelenmesi

    OpenAIRE

    2016-01-01

    Bu çalışmada, öğretmen görüşlerine göre okul müdürlerinin iletişim becerileri ile öğretmenlerin genel ve örgütsel sinizm tutumları arasındaki ilişkilerin incelenmesi amaçlanmıştır. Araştırmanın evrenini, 2014–2015 eğitim öğretim yılı, Giresun il merkezinde MEB’e bağlı okullarda çalışan 1206 öğretmen oluşturmaktadır. Araştırmada,Wiemann (1977) tarafından geliştirilen “İletişim Becerileri Ölçeği”, Brandes, Dharwadkar ve Dean (1999) tarafından geliştirilen “Örgütsel Sinizm Ölçeği” ve Wrightsman ...

  4. Cis-2,6-bis(2-klorofenil-3,3-dimetilpiperidin-4-one bileşiği üzerine yapısal, spektroskopik, elektronik ve doğrusal olmayan optiksel araştırmalar

    Directory of Open Access Journals (Sweden)

    Ömer Tamer

    2016-12-01

    Full Text Available Piperidin, heterosiklik moleküller arasında en iyi bilinen yapılardan biridir. Güncel çalışmalar bu tür bileşiklerin yapı-doğrusal olmayan optiksel performans ilişkisine odaklanmaktadır. Doğrusal olmayan optik malzemelerin fiber optik iletişim ve optik sinyal işlemlerinde hayati öneme sahip oldukları bilinmektedir. Bu çalışmada, bir piperidin türevi olan cis-2,6-bis(2-klorofenil-3,3-dimetilpiperidin-4-one (2C3DMPO bileşiğinin yapısal, spektroskopik, elektronik ve doğrusal olmayan optik özellikleri analiz edilmiştir. 2C3DMPO için elde edilen teorik sonuçlar deneysel değerler ile iyi bir uyum içindedirler. NMR spektrumunda, elektronegatif O atomundan dolayı, C4 atomu aşağı alanda sinyal vermiştir. HOMO ve LUMO arasındaki küçük enerji aralığı, bağ ve antibağ yörüngeleri arasındaki yoğun etkileşmeler yüksek doğrusal olmayan optik özelliklerin göstergesidir.

  5. An analysis of the relationship between systematic thinking skills and academic achievement of middle school studentsOrtaokul öğrencilerinde sistemik düşünme becerilerileri ile akademik başarı arasındaki ilişkinin incelenmesi

    Directory of Open Access Journals (Sweden)

    Başak Büşra Özyurt Soytürk

    2016-03-01

    Araştırmada belirlenen konularda sistemik düşünme hiyerarşisine göre hazırlanan etkinliklerin kullanılarak öğretilmesinin mevcut fen öğretime göre öğrenci başarısını olumlu yönde etkilediği tespit edilmiştir. Ayrıca  deney grubu öğrencilerinin büyük bir çoğunluğunun üst düzey sistemik düşünme basamağına ulaştığı belirlenmiştir. Araştırmanın sonucunda öğretmenlere, araştırmacılara ve program hazırlayıcılara önerilerde bulunulmuştur.

  6. El Colegio de Araújo (1890-1924 y la formación política del joven Jorge Eliécer Gaitán

    Directory of Open Access Journals (Sweden)

    Steven Navarrete Cardona

    2013-12-01

    Full Text Available Este artículo ofrece una explicación sociológica de la participación política de Jorge Eliécer Gaitán como sujeto de diversos procesos de socialización en su adolescencia, queacompañaron y facilitaron su inmersión en el campo político colombiano. También muestra algunas de las desconocidas dimensiones del Colegio Simón Araújo, donde Gaitánculminó su bachillerato. Dicho colegio funcionó durante las últimas décadas del siglo XIX y principios del siglo XX y formó a muchos de los líderes del Partido Liberal. Su ambiente político ejerció una fuerte influencia psicoafectiva en el joven Gaitán, tanto en su personalidad como en su visión del mundo

  7. Tüketici Etnik Kökenciliği Eğilimi Ölçeği (CETSCALE): İstanbul İli Tüketicileri Üzerine Bir Pilot Araştırma

    OpenAIRE

    ÇİLİNGİR, Zuhal

    2014-01-01

    Tüketicilerin yerli ve yabancı ürünlere yönelik davranış ve tutumlarının değerlendirilmesi uluslararası pazarlama yöneticileri kadar pazarlama akademisyenlerinin de ilgi odağı haline gelmiş bir konudur. Tüketici etnik kökencilik eğilimi ölçeği (CETSCALE), söz konusu davranış ve tutumların ölçülmesinde yaygın kullanım alanına sahip bir araçtır. Bu çalışmanın amacı, CETSCALE’in, İstanbul örnekleminde geçerliliğini ve güvenilirliğini test ederek, Türk tüketicilerin etnik kökencilik eğilim düzeyl...

  8. Service Quality Research as a Marketing Tool for a University Library Üniversite Kütüphanesinde Bir Pazarlama Aracı Olarak Hizmet Kalitesi Araştırması

    Directory of Open Access Journals (Sweden)

    Sekine Karakaş

    1999-09-01

    Full Text Available In this study the attitudes of library users were solicited using SERVQUAL, a marketing research technique. As the management spent all its resources for the development of the library, the impact of this policy on the service quality has been measured. At this stage the evaluation of faculty with regard to those items on the questionnaire dealing with quality of service has been tested statistically and the results evaluated accordingly. Bu çalışma için bir pazarlama araştırması tekniği olan SERVQUAL yöntemi ile kütüphane kullanıcılarını? izlenimleri alınmıştır. Bir fakülte yönetiminin kaynaklarını çoğunlukla kütüphaneye yöneltmesi ile gelinen aşamada, öğretim elemanlarının hizmet kalitesi ile ilgili maddeleri nasıl derecelendirdikleri istatiksel olarak test edilmiş, alınan sonuçlar değerlendirilmiştir.

  9. A Geostatistical Approach to Reducing Uncertainty in Rainfall Estimates Using Terrain Characteristics: A Case Study in the Central-North Regional Water Administration of Mozambique (ARA Centro-Norte)

    Science.gov (United States)

    Raheem, Y. T.; Freyberg, D. L.

    2012-12-01

    Many data-sparse regions, such as southern Africa, will likely face significant changes in water resources availability and timing in the future due land use change, climate change and population growth. Improved estimates of rainfall and streamflow are necessary to improve water resources decision-making, risk management, and uncertainty quantification. In this study, we use a universal kriging framework to associate various watershed terrain characteristics with gauged rainfall data to improve the estimation of monthly rainfall fields. We focus on available gauge data because other precipitation data sources, such as satellite precipitation products, are unavailable over historic periods of interest and exhibit bias in our context of streamflow estimation. Our study area is the 185,000 sq km Central-North Regional Water Administration of Mozambique (ARA Centro-Norte), which is predominantly rural tropical savanna. We use fifty years of spatially and temporally sparse monthly rainfall observations from 316 rainfall gauges. Most of the watershed terrain characteristics we use are derived from the 90m HydroSHEDS Digital Elevation Model dataset. These include elevation, aspect, slope, distance to large water bodies, distance to ridges, and distance to watershed rainfall maximum. We quantify the importance of these characteristics for reducing uncertainty in rainfall estimates using the Bayes information criterion (BIC) approach. Future work includes using these rainfall estimates to drive the semi-distributed monthly time-step Pitman rainfall-runoff model, in order to reduce uncertainty in streamflow estimates in gauged and ungauged basins.

  10. Investigation of the relationship between athlete identity perception, courage and self-confidenceSporcu kimlik algısı ile cesaret ve özgüven duyguları arasındaki ilişkilerin incelenmesi

    Directory of Open Access Journals (Sweden)

    Yusuf Can

    2016-12-01

    Full Text Available The aim of this research was to examine the relationship between courage and self-confidence together with an athlete identity perception. In the study, it was also tested whether there were differences in athlete identity perception, courage and self-esteem in terms of age, gender, sport year, sports field and education level. A total of 156 athletes (79 male and 77 female, selected by random sampling methods accepted to participate voluntarily in the research. Athletic Identity Perception Scale, Courage Scale and Self-Confidence Scale were used as a research tool. According to the results of the research, a strong positive correlation was found between sense of athlete identity, courage and inner self-esteem. However, there was no significant relationship between sense of athlete identity and external self-esteem. On the other hand, while no significant difference was determined between courageand internal self-confidence in terms of gender (p>0,05, significant difference was determined in external self-confidence in terms of gender (p 0,05, dış özgüven duygusunda cinsiyet açısından anlamlı bir fark bulunmuştur (p<0,05. Araştırma sonuçları, kadın sporcuların erkek sporculardan daha yüksek dış özgüven duygusuna sahip olduklarını göstermektedir.

  11. Monitoramento de águas de superfície densamente poluídas - O córrego Pirajuçara - localizado na Região Metropolitana de São Paulo

    Directory of Open Access Journals (Sweden)

    Nilce Ortiz

    2008-01-01

    Full Text Available Os córregos urbanos são sistemas dinâmicos, de elevada complexidade, que sofrem, continuamente, impactos dos despejos de indústrias e descargas domésticas, como o córrego Pirajuçara, localizado na região metropolitana de São Paulo. Este trabalho alia as medidas dos aspectos físicos, químicos e biológicos para avaliação da qualidade de água de córregos urbanos com eventos de enchente, que atravessa cidades com densa população. Para essa avaliação, desenvolveu-se um material adsorvente, que ficou imerso em águas urbanas poluídas, e foi submetido a uma série de análises que permitiram observar compostos tóxicos equivalentes aos existentes nos córregos analisados, principalmente quanto à presença de metais tóxicos, compostos orgânicos e eutrofização da água. Os resultados obtidos servem de apoio para estudos de outros rios, córregos, lagos e reservatórios densamente poluídos, localizados em áreas metropolitanas, como os córregos Aricanduva, Tamanduateí e tantos outros.

  12. Niğde İlinde Satışa Sunulan Koyun-Keçi Sütü ve Peynirlerinde Brucella melitensis ve Biyotiplerinin Araştırılması

    OpenAIRE

    KARADAL, Fulden; ERTAŞ ONMAZ, Nurhan; BAĞCI, Cemalettin; YILDIRIM, Yeliz; AL, Serhat; ABAY, Seçil

    2016-01-01

    Bu çalışma Niğde ilinde satışa sunulan çiğ koyun ve keçi sütleri ile çiğ sütten yapılmış koyun ve keçi peynirlerindekiBrucella melitensis varlığını araştırmak amacıyla yapıldı. Bu amaçla, Niğde’nin çeşitli köy ve pazarlarındantoplanan 57 çiğ koyun sütü, 43 çiğ keçi sütü ve 50 koyun- keçi peyniri olmak üzere toplam 150 örnek materyal olarakkullanıldı. B. melitensis’in izolasyonunda Farrell yöntemi, şüpheli izolatların identifikasyonunda polimeraz zincir reaksiyonu(PZR) uygulandı. Çalışmada inc...

  13. Uso de terapia VAC® para tratamiento de heridas por mordedura de araña reclusa café Vacuum-Assisted Closure therapy® for treatment of brown recluse spider bite

    Directory of Open Access Journals (Sweden)

    R. Menéndez Arzac

    2011-09-01

    Full Text Available Las mordeduras producidas por la araña reclusa café pueden causar una ulcera necrótica de crecimiento progresivo, tradicionalmente tratada en forma expectante, con antinflamatorios y con cirugía reconstructiva tardía. En este trabajo presentamos 2 casos clínicos tratados de forma exitosa por medio del dispositivo para el cierre asistido por presión negativa (VAC®. Creemos que este dispositivo es un elemento importante para el manejo de esta patología, ya que la terapia por presión negativa ayuda a limitar la necrosis cutánea y a disminuir el tamaño de la ulcera y por lo tanto, acelera el proceso de recuperación del paciente.The brown recluse spider bite can cause an enlarging necrotic skin wound, traditionally treated with expectant management, anti-inflammatory drugs and late reconstructive surgery. In this paper we report 2 cases where we used Vacuum-Assisted Closure therapy (VAC® for the successful management of these wounds. We believe that VAC® therapy is very effective in reducing wound size and skin necrosis, and also in accelerating patient recovery time.

  14. Pulmoner emboli tanısında D-dimer düzeyleri ile ventilasyon/perfüzyon sintigrafisindeki bulgular arasındaki ilişki

    Directory of Open Access Journals (Sweden)

    Zekiye Hasbek

    2014-09-01

    Full Text Available Amaç. Pulmoner emboli (PE ölüm riskinin yüksek olması ve PE kuşkusu ile başlanan antikoagülan tedavinin yüksek kanama riski taşıması, tanının en kısa sürede doğrulanmasını ya da dışlanmasını gerektiren kardiovasküler hastalıktır. Ventilasyon/perfüzyon (V/P sintigrafisi PE şüphesinde yaygın kullanılan testlerden biridir. D-dimer fibrin yıkımının bir ürünüdür. Ancak akut trombozlar için spesifik değildir. Bu çalışmada amacımız, D-dimer düzeyleri ile ventilasyon/perfüzyon sintigrafisindeki perfüzyon defekt sayısı arasındaki ilişkiyi araştırmaktı. Yöntem. Çalışmamızda, PE ön tanısı ile takip edilen 100 olgunun D-dimer düzeyleri ile V/P sintigrafileri arasındaki ilişki araştırıldı. Hastaların sintigrafik bulguları perfüzyon defekti açısından; “perfüzyon defekti yok”, “subsegmenter tutulum”, “bir segment tutulum”, “iki segment tutulum”, “üç segment tutulum” ve “üçten fazla segment tutulum” şeklinde altı gruba; pulmoner emboli olasılığı açısından ise “pulmoner emboli yok”, “düşük olasılıklı”, “orta olasılıklı” ve “yüksek olasılıklı” şeklinde dört gruba ayrıldı. D-dimer düzeyi referans aralığı 0,00-0,50 µg/mL idi. Bulgular. Çalışmaya alınan 100 hastanın 52’si erkek 48’i kadındı. Pulmoner emboli olmayan 65 hastada D-dimer: 4,39 ± 9 µg/mL; düşük olasılıklı 20 hastada D-dimer: 4,57 ± 4 µg/mL; orta olasılıklı olan 9 hastada D-dimer: 6,38 ± 6 µg/mL; yüksek olasılıklı olan 6 hastada D-dimer: 8.0±8µg/mL olarak bulundu (p>0,05. Perfüzyon defekti izlenen segment sayısına göre; perfüzyon defekti olmayan 22 hastada D-dimer: 3,01 ± 4 µg/mL; subsegmenter defekti olan 8 hastada D-dimer: 3,62 ± 3 µg/mL; 1 segment defekti olan 14 hastada D-dimer: 10,7 ± 18 µg/mL; 2 segment defekti olan 11 hastada D-dimer: 3,16 ± 2 µg/mL; 3 segment defekti olan 10 hastada D-dimer: 3,86 ± 3

  15. Heavy metal concentration of river sediment in the light of the environmental quality standard value of Japan from the river in and around the Tokyo Japan: A case study at the Tama, Tsurumi, Edo and Ara rivers

    Science.gov (United States)

    Watanabe, K.; Matsumoto, I.

    2008-12-01

    The river sediment is basically composed of clastic materials derived from the surface of the Earth. Purpose of our study is clarify the quantitative estimation of ratio of influence given to river sediment of nature and human activity by using of heavy metals. We show the geochemical and geological characteristics of stream sediments from the Tama, Tsurumi, Edo and Ara Rivers that flow in Tokyo bay, Japan. We show research results of the degree of contamination in above four rivers that are the relativery polluted river in Japan. Sediment samples collected from various points along the upper and lower streams were subjected to content analysis and elution analysis (using liquate (flow) out test) on the heavy metals like Cd, CN, Pb, Cr(6+), As and Hg from the river sediment for the purpose of environment assessment. Content of Cd, CN, Pb, Cr(6+), As, and Hg except Pb was above the environmental quality limit in few locations of the Tsurumi river. However, in the down-river part (mouth region) Pb-concentration was 10 times higher than at the source regions as the result of human impact; for Hg the same tendency was detected at the all rivers. This study is the first research that investigated river sediment in the light of the envirnomental quality standard in Tokyo area, Japan.

  16. Öğretim Elemanlarının Kişilik Özellikleri ile Örgütsel Bağlılık Düzeyleri Arasındaki İlişki The Relationship Between Instructors' Personality Traits And Organizational Commitment

    Directory of Open Access Journals (Sweden)

    Ergün RECEPOĞLU

    2013-07-01

    Full Text Available This study seeks to explore the relationships between instructors'personality traits and organizational commitment. This is a descriptiveresearch in the correlational survey model. A total of 154 instructorsemployed in Gazi University Gazi Faculty of Education participated inthe study. More than half of the instructors were research assistants.The Big Five Inventory (FFPI originally developed by John, Donahueand Kentle (1991 and adapted into Turkish by Alkan (2007 andOrganizational Commitment Scale originally developed by Meyer andAllen (1991 and adapted into Turkish by Wasti (2000 were used togather research data. SPSS 13 statistical program was used in dataanalysis. Pearson product-moment correlation coefficient was computedto determine the relationships between variables and regressionanalysis was conducted to determine to what extent independentvariables predict dependent variables. Results mirrored that the mostrated personality trait was agreeableness while neuroticism was theleast. Results also indicated that there were significant relationshipsbetween instructors' personality traits and organizational commitment.Openness to experience sub-scale of personality traits was not found tobe associated with sub-scales of organizational commitment.Furthermore, results illustrated that conscientiousness was the onlysignificant predictor of both affiliative and normative commitment.Results of the study were discussed in the light of related literature. Bu araştırmanın amacı, öğretim elemanlarının kişilik özellikleri ile örgütsel bağlılık düzeyleri arasındaki ilişkinin incelenmesidir. Bu araştırma ilişkisel tarama modelinde betimsel bir çalışmadır. Araştırmaya Gazi Üniversitesi Gazi Eğitim Fakültesi'nde görev yapan 154 öğretim elemanı katılmıştır. Katılımcıların yarısından fazlası araştırma görevlisidir. Araştırmada veri toplamak amacıyla John, Donahue ve Kentle (1991 tarafından geliştirilen ve

  17. Okul Müdürlerinin İletişim Becerileri İle Öğretmenlerin Genel ve Örgütsel Sinizm Tutumları Arasındaki İlişkilerin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Tevfik UZUN

    2016-08-01

    Full Text Available Bu çalışmada, öğretmen görüşlerine göre okul müdürlerinin iletişim becerileri ile öğretmenlerin genel ve örgütsel sinizm tutumları arasındaki ilişkilerin incelenmesi amaçlanmıştır. Araştırmanın evrenini, 2014–2015 eğitim öğretim yılı, Giresun il merkezinde MEB’e bağlı okullarda çalışan 1206 öğretmen oluşturmaktadır. Araştırmada,Wiemann (1977 tarafından geliştirilen “İletişim Becerileri Ölçeği”, Brandes, Dharwadkar ve Dean (1999 tarafından geliştirilen “Örgütsel Sinizm Ölçeği” ve Wrightsman (1992 tarafından geliştirilen “Genel Sinizm Ölçeği” kullanılmıştır. Verilerin analizinde yüzde, frekans, aritmetik ortalama, standart sapma, korelasyon ve regresyon analizleri kullanılmıştır. Öğretmen görüşlerine göre okul müdürlerin iletişim becerileri, “iyi” düzeydedir. Araştırma sonuçlarına göre, öğretmenlerin genel sinizm düzeyleri “kararsızım” aralığında orta düzeyde bulunmuştur. Öğretmenlerin duyuşsal, davranışsal boyut ve alt boyutlar toplamında örgütsel sinizm düzeyleri “katılmıyorum” aralığında düşük düzeyde, bilişsel boyutta ise “kısmen katılıyorum” aralığında orta düzeyde bulunmuştur. Öğretmenlerin genel sinizm tutumları ile örgütsel sinizm tutumları arasında düşük düzeyde potizif yönde bir ilişki bulunmaktadır. Ayrıca; öğretmenlerin okul müdürlerinin iletişim becerilerine ilişkin görüşleri ile örgütsel sinizm tutumları arasında orta düzeyde negatif yönde anlamlı bir ilişki olduğu tespit edilmiştir. Öğretmenlerin okul müdürlerinin iletişim becerilerine ilişkin görüşleri ile öğretmenlerin genel sinizm tutumları arasında düşük düzeyde negatif yönde anlamlı bir ilişki bulunmaktadır. Anahtar Kelimeler: Okul müdürü, iletişim, öğretmen, örgütsel sinizm.

  18. Okul Müdürlerinin İletişim Becerileri İle Öğretmenlerin Genel ve Örgütsel Sinizm Tutumları Arasındaki İlişkilerin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Tevfik UZUN

    2016-08-01

    Full Text Available Bu çalışmada, öğretmen görüşlerine göre okul müdürlerinin iletişim becerileri ile öğretmenlerin genel ve örgütsel sinizm tutumları arasındaki ilişkilerin incelenmesi amaçlanmıştır. Araştırmanın evrenini, 2014–2015 eğitim öğretim yılı, Giresun il merkezinde MEB’e bağlı okullarda çalışan 1206 öğretmen oluşturmaktadır. Araştırmada,Wiemann (1977 tarafından geliştirilen “İletişim Becerileri Ölçeği”, Brandes, Dharwadkar ve Dean (1999 tarafından geliştirilen “Örgütsel Sinizm Ölçeği” ve Wrightsman (1992 tarafından geliştirilen “Genel Sinizm Ölçeği” kullanılmıştır. Verilerin analizinde yüzde, frekans, aritmetik ortalama, standart sapma, korelasyon ve regresyon analizleri kullanılmıştır. Öğretmen görüşlerine göre okul müdürlerin iletişim becerileri, “iyi” düzeydedir. Araştırma sonuçlarına göre, öğretmenlerin genel sinizm düzeyleri “kararsızım” aralığında orta düzeyde bulunmuştur. Öğretmenlerin duyuşsal, davranışsal boyut ve alt boyutlar toplamında örgütsel sinizm düzeyleri “katılmıyorum” aralığında düşük düzeyde, bilişsel boyutta ise “kısmen katılıyorum” aralığında orta düzeyde bulunmuştur. Öğretmenlerin genel sinizm tutumları ile örgütsel sinizm tutumları arasında düşük düzeyde potizif yönde bir ilişki bulunmaktadır. Ayrıca; öğretmenlerin okul müdürlerinin iletişim becerilerine ilişkin görüşleri ile örgütsel sinizm tutumları arasında orta düzeyde negatif yönde anlamlı bir ilişki olduğu tespit edilmiştir. Öğretmenlerin okul müdürlerinin iletişim becerilerine ilişkin görüşleri ile öğretmenlerin genel sinizm tutumları arasında düşük düzeyde negatif yönde anlamlı bir ilişki bulunmaktadır. Anahtar Kelimeler: Okul müdürü, iletişim, öğretmen, örgütsel sinizm.

  19. Ortaöğretim Öğretmenlerinin Örgüt içi Bilgi Paylaşımı, Örgütsel Öğrenme ve Entelektüel Sermaye Düzeyleri Arasındaki İlişki

    Directory of Open Access Journals (Sweden)

    Gündüz GÜNGÖR

    2016-12-01

    Full Text Available Öz: Bu araştırmanın amacı ortaöğretim öğretmenlerinin örgüt içi bilgi paylaşım düzeyleri, örgütsel öğrenme düzeyleri ve entelektüel sermaye düzeyleri arasındaki ilişkinin belirlenmesi ve entelektüel sermayeye ilişkin regresyon modelinin oluşturulmasıdır. İlişkisel tarama modelindeki bu araştırmanın örneklemini İstanbul ili Bağcılar İlçesi ortaöğretim kurumlarında çalışan 408 öğretmen oluşturmaktadır. Verilerin analiz edilmesinde aritmetik ortalama, standart sapma, t-testi, tek yönlü ANOVA, korelasyon ve regresyon test teknikleri kullanılmıştır. Araştırma sonuçlarına göre, öğretmenlerin entelektüel sermaye düzeyi ile okul türü ve mesleki kıdem değişkenleri arasında; öğretmenlerin bilgi paylaşım düzeyi ile okul türü, cinsiyet ve kıdem değişkenleri arasında anlamlı farklılık bulunmuştur Örgütsel öğrenme ile demografik değişkenler arasında ise anlamlı farklılık bulunmamıştır. Örgüt içi bilgi paylaşımı ve örgütsel öğrenme değişkenleri birlikte, entelektüel sermayedeki toplam varyansın yaklaşık %68’ini açıklamaktadır. Bu sonuç örgütsel öğrenme ve örgüt içi bilgi paylaşımının entelektüel sermayenin önemli yordayıcıları olduğunu göstermektedir.Anahtar Kelimeler: Entelektüel sermaye, bilgi paylaşımı, örgütsel öğrenme

  20. Composición y distribución espacio-temporal de las comunidades de arañas (Arachnida: Araneae en el sistema de cultivo maíz-soya de la altillanura plana colombiana, municipio de Puerto López, Meta

    Directory of Open Access Journals (Sweden)

    Flórez Daza Eduardo

    2004-12-01

    Full Text Available Actualmente la región de los Llanos Orientales de Colombia, la cual pertenece al sistema de importancia mundial de Sabanas Tropicales, ha sido escenario de la expansión agrícola en las últimas décadas debido al desarrollo de plantas genéticamente modificadas tolerantes al aluminio y a la política del Ministerio de Agricultura de suplir las necesidades internas de maíz y soya con producción nacional. Con los cambios que se están generando en esta zona y por la evidencia que la araneofauna puede actuar como reguladora de las poblaciones de insectos plaga, se planteó el presente trabajo cuyo objetivo principal fue determinar la composición
    y dinámica espacio-temporal de la fauna de arañas en el sistema de cultivo maíz-soya en el municipio de Puerto López, departamento del Meta. Para lo anterior se seleccionó una finca con producción comercial maíz-soya donde se efectuaron seis muestreos en diferentes épocas: soya-desarrollo vegetativo, soya-precosecha, maíz-fructificación, maíz-precosecha y soya-fructificación, entre octubre de 2001 y diciembre de 2002. Para efectuar los muestreos se diseñó una cuadrícula con un total de 70 sitios de lectura, distanciados entre si 175 m; estos
    puntos fueron georreferenciados respecto a un origen arbitrario en los lotes. La cuadrícula se centró en los cultivos de interés (maíz-soya e incorporó lecturas en los siguientes ecosistemas aledaños: bosque de sabana, morichal, sabana nativa y sabana introducida. Los métodos
    de captura empleados fueron trampas de caída (Pitfall y aspirador entomológico (Dvac. Se estimó la abundancia, diversidad (Shannon-Weaver y Simpson y riqueza en cada una de las etapas del cultivo y en cada uno de los ecosistemas. Además, esta información fue analizada
    por medio de técnicas geoestadísticas, con las que se evaluó la dinámica espacio-temporal de los gremios de la araneofauna colectada. En total se colectaron 1.653 ara

  1. Coding-complete sequencing classifies parrot bornavirus 5 into a novel virus species.

    Science.gov (United States)

    Marton, Szilvia; Bányai, Krisztián; Gál, János; Ihász, Katalin; Kugler, Renáta; Lengyel, György; Jakab, Ferenc; Bakonyi, Tamás; Farkas, Szilvia L

    2015-11-01

    In this study, we determined the sequence of the coding region of an avian bornavirus detected in a blue-and-yellow macaw (Ara ararauna) with pathological/histopathological changes characteristic of proventricular dilatation disease. The genomic organization of the macaw bornavirus is similar to that of other bornaviruses, and its nucleotide sequence is nearly identical to the available partial parrot bornavirus 5 (PaBV-5) sequences. Phylogenetic analysis showed that these strains formed a monophyletic group distinct from other mammalian and avian bornaviruses and in calculations performed with matrix protein coding sequences, the PaBV-5 and PaBV-6 genotypes formed a common cluster, suggesting that according to the recently accepted classification system for bornaviruses, these two genotypes may belong to a new species, provisionally named Psittaciform 2 bornavirus.

  2. Nuevos registros de aves para el Estado de México New records of birds for the State of Mexico

    Directory of Open Access Journals (Sweden)

    Fernando Urbina-Torres

    2012-12-01

    Full Text Available Se informa por primera vez sobre la presencia en el Estado de México del halcón guaco (Herpetotheres cachinnans, el halcón enano (Falco rufigularis, la guacamaya verde (Ara militaris, el cuclillo manglero (Coccyzus minor, la titira enmascarada (Tityra semifasciata y la golondrina sinaloense (Progne sinaloae. Estos registros fueron realizados en el Parque Natural Sierra Nanchititla. Ara militaris y P. sinaloae se encuentran clasificadas como especies en riesgo, de acuerdo con criterios nacionales e internacionales.We report for the first time the presence of Laughing Falcon (Herpetotheres cachinnans, Bat Falcon (Falco rufigularis, Military Macaw (Ara militaris, Mangrove Cuckoo (Coccyzus minor, Masked Tityra (Tityra semifasciata, and Sinaloa Martin (Progne sinaloae in the State of México. These records were made in the Parque Natural Sierra Nanchititla. A. militaris and P. sinaloae are considered at risk in accordance with national and international criteria.

  3. Fauna de arañas del suelo de una comunidad árida-tropical en Baja California Sur, México Ground surface spider fauna in an arid tropical community in Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    María Luisa Jiménez

    2010-08-01

    Full Text Available Se describe la temporalidad y diversidad de arañas del suelo del matorral sarcocaule en la región del Cabo en Baja California Sur. Durante 1991-1992 se realizaron colectas semanales por medio de trampas de caída. Se capturaron 4 322 ejemplares de 53 especies. Las familias con mayor abundancia fueron Miturgidae (42.2%, Oonopidae (23.5%, Caponiidae (8.0% y Gnaphosidae (7.9%. Las especies más abundantes fueron Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8% y Tarsonops sternalis Chamberlin (5.2%, que constituyeron el 63.7% del total de individuos. Gnaphosidae fue la más rica en especies (11, seguida por Salticidae (7. La riqueza de especies fue constante durante todo el año, con un ligero ascenso en el verano (29 y una ligera disminución en el invierno (24. La diversidad por estación del año se mantuvo en un intervalo de H'= 3.3 -3.7. La abundancia relativa se incrementó en primavera y otoño. La mayor riqueza específica se encontró en otoño. La abundancia relativa y la diversidad de arañas se pueden considerar altas, a pesar del fuerte dominio de la familia Miturgidae. En la mayoría de las especies, la distribución mostró una marcada estacionalidad.Seasonal distribution, specific richness, and diversity of xeric shrub ground spiders were studied at a site in the Cape Region. Weekly collections of spiders were made in 1991-1992 using pit-fall traps. We captured 4 322 specimens in 53 families. Families with the highest number of individuals were: Miturgidae (42% Oonopidae (23.5%, Caponiidae (8.0%, and Gnaphosidae (7.9%. The most abundant species were Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8%, and Tarsonops sternalis Chamberlin (5.2%, representing 63.7% of the total specimens captured. Gnaphosidae was the richest in species (11 followed by Salticidae (7. Species richness was nearly constant during all the year, with a small increase in

  4. Applications and limitations of thermobarometry in migmatites and granulites using as an example rocks of the Araçuaí Orogen in southern Bahia, including a discussion on the tectonic meaning of the current results

    Directory of Open Access Journals (Sweden)

    Renato Moraes

    Full Text Available In southern Bahia, there are outcrops of migmatites and granulites in the Jequitinhonha Complex, which is part of the northern portion of the Araçuaí Orogen. Migmatites (garnet-cordierite diatexite dominate the metamorphic rocks and host lenses and layers of felsic garnet granulite. The conditions of temperature and pressure of metamorphism were calculated using conventional thermobarometry and the software THERMOCALC. Values around 850 °C and 7 kbar were obtained with THERMOCALC. The calculations for the garnet-cordierite diatexite were made considering aH2O equal to 1, but the best results of calculations for the granulites are obtained with aH2O values of 0.3. Pressure values obtained with GAPES resulted in consistent values with THERMOCALC, but the pair garnet-orthopyroxene always produces low values for temperature and high ones for pressure. The results are consistent with the presence of the pair garnet and cordierite in diatexite and orthopyroxene in felsic granulite. From the tectonic point of view, the setting in which metamorphism of these rocks occurred requires high heat flow with a thermal anomaly in mid continental crust, as indicated by values of 7 kbar. Recent studies have favored the closure of a back-arc basin for this tectonic setting, but it does not solve the problem that the time span between metamorphic peak and the end of granite intrusions, involving large bodies of charnockite, is more than 80 million years. The model of tectonic switching is suggested here as it can explain the maintenance of high temperatures for a more extended interval of time.

  5. Kültür Mantarlarının Muhafazası ve Kalite Özellikleri Üzerine Yapılan Araştırmalar

    Directory of Open Access Journals (Sweden)

    Ömür Dündar

    2016-03-01

    Full Text Available Bu çalışmada Dünya ve Türkiye genelinde yetiştirilmekte olan yemeklik kültür mantarlarının muhafazası ve kalite özellikleri üzerine yapılan araştırmalar incelenmiştir. Mantarlar, demir, bakır, magnezyum, kalsiyum, fosfor ve potasyum gibi çeşitli mineraller içerirler ve folate, thiamine, riboflavin ve niacin B, C ve D vitaminlerinin yanı sıra, karbonhidrat ve protein kaynağıdırlar. Sağlık bakımından da önemli olan mantarlara hasattan sonra, raf ömrünü uzatmak için ön soğutma, uygun sıcaklıkta depolama, farklı polietilen poşetlerle paketleme, modifiye atmosfer poşet kullanımı, nitrik oksit ve ultraviyole ışık kullanımı gibi uygulamalar yapılmıştır. Bu uygulamaların, muhafaza ve raf ömrü sırasında, mantarlarda ağırlık kaybı, sertlik, şapka çapı ve açılımı, sap çapı, kahverengileşme, renk, solunum hızı, enzimatik reaksiyonlar, toplam fenoller, toplam şekerler, amino asit içeriği gibi fiziksel ve kimyasal özellikleri üzerine etkisi incelenmiştir.

  6. Ortaçağ ve Sonrası Muş İli Yüzey Araştırması -2008- Malazgirt / A Survey on Medieval and Later Periods of Malazgirt, Muş (2008

    Directory of Open Access Journals (Sweden)

    Bülent Nuri KILAVUZ

    2013-03-01

    Full Text Available Abstract The research was carried out with the permissions of General Directorate of Monuments and Museums, Culture and Tourism Ministry of Turkish Republic, between 22 July to 6 August 2008 at Malazgirt town of Muş Province and dependent villages. Some cultural assets composed of monumental architectural structures such as Mosques, Churches, Inns, Bridges, cemeteries and grave stones were identified A mosque, ruins of an Inn, two bridges at the center of Malazgirt, a house and a rock church,at Uzgörür village of Bulanık County, twelve cemeteries at Malazgirt town and two cemeteries at Uzgörür village were investigated.. Memorial monuments and tombstones vary in terms of materials, forms and style according to region and periods. A small number of identified works belong to Seljuk period and afterwards (XI-XV. Century, and most of the others usually belong to the Ottoman (XVI-XIX centuries period. The searched cemeteries were found to be different from each other. It is important to demonstrate the richness of the geography of Muş. Some of the motifs over the Headstones indicate differences, especially compared to other provinces in the region. Historical graves in the cemetery are rapidly destroyed by natural and human factors actually. In addition, all new burials in cemeteries today increase the destruction. Özet T.C. Kültür ve Turizm Bakanlığı, Kültür Varlıkları ve Müzeler Genel Müdürlüğü’nün izinleri ile 22 Temmuz- 06 Ağustos 2008 tarihleri arasında Muş ilinin Malazgirt ilçesinde ve köylerinde yüzey araştırması gerçekleştirilmiştir. Cami, Kilise, Han, Köprü, ve Ev’den oluşan anıtsal mimari yapılar ile mezarlıklar ve mezar taşlarından oluşan kültür varlıkları tespit edilmiştir. Araştırmanın son günlerinde Bulanık ilçesinin köylerine de girilmiştir. Araştırmada; Malazgirt merkezde iki, Dirimpınar Köyü’nde bir han kalıntısı, bir mescit ve bir cami, iki köprü, Bulanık il

  7. Diversity and Distribution of Heavy Metal-Resistant Bacteria in Polluted Sediments of the Araça Bay, São Sebastião (SP), and the Relationship Between Heavy Metals and Organic Matter Concentrations.

    Science.gov (United States)

    Zampieri, Bruna Del Busso; Pinto, Aline Bartelochi; Schultz, Leonardo; de Oliveira, Marcos Antonio; de Oliveira, Ana Julia Fernandes Cardoso

    2016-10-01

    Heavy metals influence the population size, diversity, and metabolic activity of bacteria. In turn, bacteria can develop heavy metal resistance mechanisms, and this can be used in bioremediation of contaminated areas. The purpose of the present study was to understand how heavy metals concentration influence on diversity and distribution of heavy metal-resistant bacteria in Araça Bay, São Sebastião, on the São Paulo coast of Brazil. The hypothesis is that activities that contribute for heavy metal disposal and the increase of metals concentrations in environment can influence in density, diversity, and distribution of heavy metal-resistant bacteria. Only 12 % of the isolated bacteria were sensitive to all of the metals tested. We observed that the highest percentage of resistant strains were in areas closest to the São Sebastião channel, where port activity occurs and have bigger heavy metals concentrations. Bacterial isolated were most resistant to Cr, followed by Zn, Cd, and Cu. Few strains resisted to Cd levels greater than 200 mg L(-1). In respect to Cr, 36 % of the strains were able to grow in the presence of as much as 3200 mg L(-1). Few strains were able to grow at concentrations of Zn and Cu as high as 1600 mg L(-1), and none grew at the highest concentration of 3200 mg L(-1). Bacillus sp. was most frequently isolated and may be the dominant genus in heavy metal-polluted areas. Staphylococcus sp., Planococcus maritimus, and Vibrio aginolyticus were also isolated, suggesting their potential in bioremediation of contaminated sites.

  8. Y Kuşağı Turistlerin Destinasyon İmaj Algıları Üzerine Bir Araştırma A Research On Generation Y Tourists Perceptions Of Destination Image

    Directory of Open Access Journals (Sweden)

    Aslı ALBAYRAK

    2013-07-01

    şağı turistlerin tatil yerlerine karar vermeleri üzerine destinasyon imajını oluşturan faktörlerin etkisini saptamak ve Y kuşağı turistlerin yapısal özellikleri ile destinasyon algıları arasındaki ilişkiyi inceleyerek söz konusu kuşak için destinasyon pazarlamasına ilişkin önerilerde bulunmak amacıyla yapılmıştır.Çalışmada nicel araştırma yöntemlerinden anket tekniğinden yararlanılmış, İstanbul’da bu kuşağı temsil eden ve kota örnekleme yöntemiyle belirlenen 384 kişiyle yüz yüze anket çalışması yapılmıştır. Elde elde verilerin analizinde betimsel istatistik, t-testi ve Anova Analizi kullanılmıştır.Araştırmanın sonuçlarına göre destinasyon imajı katılımcıların cinsiyetlerine, eğitim durumlarına ayrıca gelir düzeylerine göre farklılık göstermektedir. Diğer yandan, Y Kuşağı turistlerinin dinlenme, eğlenme ve yeni yerler görme isteği ile hareket ettikleri, kalite ve lüks bir tatili uygun fiyata arayan bireylerden oluştuğu söylenebilir.Turistik satın alma süreci birçok faktörün etkisiyle şekillenmektedir. Bu süreci etkileyen faktörlerden birisi de destinasyon imajıdır. En genel tanımıyla destinasyon imajı bireylerin bir yer hakkındaki genel algılarıdır ve bu algılar yaş, eğitim, gelir, kültür gibi bir çok faktörden etkilenmektedir. Geçmişte turistlerin destinasyon tercihleri ile ilgili çeşitli çalışmalar yapılmış ve bu çalışmalarda genel olarak turistlerin yaş, eğitim, kültür, gelir gibi özelliklerinin destinasyon imaj algıları üzerine etkileri incelenmiştir ancak farklı kuşakların destinasyon imaj algıları ile ilgili herhangi bir çalışmaya rastlanmamıştır. Bu nedenle bu çalışma sonucunda elde edilen sonuçların turizm pazarlamacılarına katkı sağlayabileceği düşünülmüştür.

  9. Public Relations In Strategic Management: The Case Of Metropolitan Municipalities In Turkey Stratejik Yönetimde Halkla İlişkiler: Türkiye Büyükşehir Belediyeleri Araştırması

    Directory of Open Access Journals (Sweden)

    Hasan GÜLLÜPUNAR

    2013-07-01

    ından hazırlanan stratejik planlarbağlamında ele alınmıştır. Onaltı büyükşehir belediyesinin stratejikplanları halkla ilişkiler yaklaşımı bakımından içerik analize yöntemi ileincelenmiştir.Çalışma stratejik planlama sürecinde halkla ilişiklerin kabuledilen bir gerçek olduğunu ancak bunun etkin bir uygulamayadönüşmediğini ortaya koymuştur. Halkla ilişkiler birimi ve diğerdepartmanlar arasında yeterli bir koordinasyonun olmaması, kaliteninyükseltilmesi ve hizmetlerde etkililik bakımından halkla ilişkilerbirimiyle koordineli bir çalışma kültürünün bulunmaması ve stratejikyönetimin amaç ve hedeflerinde halkla ilişkiler birimine görev vesorumluluklar verilmemesi uygulamada ortaya çıkan önemli eksikliklerolarak düşünülebilir.Çalışmada Türkiye’deki halkla ilişkilerin önemini ve rolünüanlamak için büyükşehir belediyelerinin stratejik planları analizedilmektedir. Dolayısıyla bu araştırma stratejik planlama sürecindehalkla ilişkilerin öneminin ve rolünün anlaşılmasına katkısağlamaktadır. Çünkü bu çalışma, halkla ilişkilere odaklanarakstratejik planlama ile ilgili Türkiye’de yapılan ilk çalışmalardan biridir.Araştırma bulguları Türkiye’deki büyükşehir belediyelerinin stratejikplanlama sürecinde halkla ilişkilerin yerini ortaya koymaktadır.

  10. Bağımsız Seyahat Eden Yerli Gezginlerin Profili ve Seyahat Alışkanlıkları Üzerine Bir Araştırma A Research On Profile And Trip-Related Characteristics Of Turkish Independent Travellers

    Directory of Open Access Journals (Sweden)

    Serhat HARMAN

    2013-07-01

    Full Text Available Number of Turkish citizens taking abroad and domestic trips isincreasing every year. Independent travellers constitute an importantsegment in World travel market. But there has been no research onprofile and trip-related characteristics of Turkish independenttravellers. In this study, profile and trip-related characteristics ofTurkish independent travellers’ were tried to be determined via asurvey. Survey was implemented through website between 15September 2012 and 15 May 2013, and 163 Turkish independenttravellers participated to the survey. Findings of the research indicatedthat more than half of the participants are male; most of them aresingle and holding bachelor degree at least. It is understood that 34percent of participants taking their trips alone while 42 percentsgenerally taking their trips with friends. Number of international tripstaken in last three years varies between 1 and 20 with average 4international trips. On the other hand, number of domestic trips takenby participants varies between 1 and 30; average number of domestictrips was calculated as 6. It was found that intercity buses, plains,train, autos are most preferred transportation vehicles by participants.Also, it was found that travellers stay over averagely 7,65 days in theirdomestic trips in Turkey while 15 days in their trips abroad. Study endswith suggestions both for the tourism establishments and publicauthorities. Yurtiçi ve yurtdışı seyahate çıkan Türk vatandaşı sayısı her geçen yıl artmaktadır. Bağımsız seyahat eden gezginler Dünya seyahat pazarı içinde önemli bir pazar bölümünü oluşturmaktadır. Ancak, yurtiçi turizm alan yazında bağımsız seyahat eden yerli gezginlerin profilleri ve seyahat alışkanları üzerine herhangi bir araştırma bulunmamaktadır. Bu çalışmada, bağımsız seyahat eden yerli gezginlerin profilleri ve seyahat alışkanlıkları tarama tipinde tasarlanan bir alan araştırması belirlenmeye çal

  11. Yöneticilerin Liderlik Tarzları ile Çalışanların İşyerindeki Politik Davranışları Arasındaki İlişkinin İncelenmesine Yönelik Bir Araştırma(A Study on the Correlation of Leadership Styles and the Political Behaviours of Employees in Workplaces

    Directory of Open Access Journals (Sweden)

    Mustafa Erdem

    2016-04-01

    Full Text Available Bu çalışmanın temel amacı işletmelerde çalışan personelin yöneticilerinin liderlik tarzlarını nasıl algıladıkları, bu algı çerçevesinde herhangi bir politik davranış sergileyip sergilemediklerini ortaya koymak ve bu iki kavram arasındaki ilişkiyi incelemektedir. Çalışmada ‘Türkiye Ortamında Liderlik Özellikleri’ isimli ölçek çalışmasından istifade edilerek çalışanların, yöneticilerinin davranışlarını nasıl algıladıkları ve bu algıya istinaden ortaya koymuş oldukları politik davranışlar tespit edilmiştir. Bu bağlamda yöneticilerin liderlik tarzları; takım kuran ve paylaşan, hiyerarşik ve işe odaklı, takip ve kontrol eden ve babacan olarak, politik davranışlar ise; tavizci davranmak, ikiyüzlü davranmak, göze girmeye çalışmak, koalisyon kurmak, karşılıklı çıkar gözetmek, üst yönetime yaranmaya çalışmak şeklinde ele alınmıştır. Çalışmada farklı sektörlerde faaliyet gösteren işletmelerde toplam 123 kişi ile anket çalışması yapılmıştır. Çalışanlara uygulanan anket verilerinin analizi sonucunda elde edilen bulgular çerçevesinde, yöneticilerin liderlik tarzları ile çalışanların işyerindeki politik davranışları arasındaki ilişki tespit edilmeye çalışılmıştır. Abstract The main objective of this study is to exhibit how the employees in a workplace perceive the leadership styles of their executives, how they reflect a political behaviour regarding their perception and to examine the association between these two notions. The study made use of the scale experiment “Leadership Characteristics in Environment of Turkey” for determining how the employees perceive the behaviours of executives and which political behaviours the employees reflect regarding this perception. In this context the leadership styles of executives are handled as team setter and participant, hierarchical and work-oriented, monitor and controller and

  12. Freqüência e variáveis associadas ao aleitamento materno em crianças com até 12 meses de idade no município de Araçatuba, São Paulo, Brazil Frequency and associated variables to breastfeeding among infant up to 12 months of age in Araçatuba, State of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Nemre Adas Saliba

    2008-12-01

    Full Text Available OBJETIVOS: avaliar a prevalência do aleitamento materno em crianças assistidas em Araçatuba, São Paulo, Brasil; verificar a associação com variáveis materno-infantis e o conhecimento das mães sobre a relação da amamentação com saúde bucal. MÉTODOS: estudo transversal. Os dados foram coletados durante a Campanha Nacional de Vacinação, em 2005. Foram entrevistadas 100 mães de crianças com até 12 meses de idade. A freqüência do aleitamento foi estimada por meio da análise de sobrevivência, e foram realizadas análises estatísticas para verificação da associação entre aleitamento e variáveis independentes. RESULTADOS: a prevalência do aleitamento aos 6 e 12 meses foi de 22,2% (exclusivo e 65% (total. A duração mediana da amamentação exclusiva foi de 3,65 meses. As variáveis associadas ao desmame foram uso de mamadeira (χ2=9,537; p=0,002 e chupeta (χ2= 14,667; p=0,001. Poucas mães (33 demonstraram saber a influência do aleitamento sobre a saúde bucal de seus filhos, sendo o cirurgião-dentista o profissional mais citado como responsável por essa informação. CONCLUSÕES: a prevalência da amamentação foi satisfatória, porém foram baixas as taxas de aleitamento exclusivo, e como fatores determinantes destacaram-se o uso de mamadeiras e chupetas associado ao desmame. É dever de órgãos governamentais, meios de comunicação e profissionais de saúde compactuarem ações efetivas em prol do aleitamento.OBJECTIVES: to evaluate the prevalence of breastfeeding among infants receiving care in Araçatuba, in the State of São Paulo, Brazil; to assess associated variables relating to mother and child and the mother's knowledge regarding the relationship between breastfeeding and oral health. METHODS: cross-sectional study. Data was collected during the National Immunization Campaign, in 2005. One hundred mothers of children up to 12 months of age were interviewed. The frequency of breastfeeding was estimated

  13. Productividad de una plantación de espárrago verde (Asparagus officinalis var. altilis L. con diferentes tamaños de “arañas” y densidades, en su séptimo año

    Directory of Open Access Journals (Sweden)

    A. M. Castagnino

    2012-12-01

    Full Text Available El espárrago es un cultivo rústico que tradicionalmente se ha iniciado mediante el sistema tradicional de “arañas”. El presente ensayo tuvo como objetivo evaluar la productividad total y comercial de una plantación de espárrago verde al séptimo año desde la plantación. El ensayo de 1.728 m2 está ubicado en la Chacra Experimental de la Facultad de Agronomía de la UNCPBA (36º 48’ latitud Sur y 59º 51’ longitud Occidental, en Azul, Argentina. La plantación, iniciada el 12/09/2003, se evaluó en el período 17/09/2010-01/11/2010. Las variables estudiadas fueron: tamaños de “arañas” grandes (AG > 200 g, medianas (AM 100-200 g y pequeñas (AP 0,05. El rendimiento general del ensayo fue PFT: 19.758 y PFN: 10.018 kg/ha; mientras que NTT: 483.425 y NTC: 477.200. En PFT se observaron diferencias significativas (p 0,05, siendo la media en PFN: 9.910 kg/ha. En densidad y en tamaño de “arañas” los resultados difirieron de los encontrados 2 años anteriores en los que se destacaron mayor densidad y tamaño grande; efectos atribuibles a la competencia intraespecífica.

  14. Euro ve ABD Doları Kurları ile Pay Senedi Endeksleri Arasındaki İlişkinin İncelenmesi: Borsa İstanbul Verileri Üzerine Ampirik Bir Çalışma(Examining the Relationship between Euro/TL, USD/TL and Equity Indexes: An Empirical Study on Borsa İstanbul

    Directory of Open Access Journals (Sweden)

    Hicabi Ersoy

    2016-03-01

    Full Text Available Bu çalışmada Türkiye’de pay senetleri fiyatları ile döviz kurları arasındaki ilişki, VAR metodu (vektör oto regresyon modeli kullanılarak araştırılmıştır. Döviz kurları ve pay senedi fiyatlarından oluşan değişkenler arasında doğrusal bir bağıntı olup olmadığının tespiti amacıyla bu model kullanılmıştır. Bu amaçla, döviz kurları, BİST Banka ve BİST Sınai endeksleri ele alınmıştır. Veriler Ocak 2011’den Aralık 2014’e kadar olan döneme ait günlük değişmeleri içermektedir. Türkiye’de en fazla işlem yapılan döviz kurları ABD doları ve Euro olduğu için, bu kurlar tercih edilmiştir.  This paper examines the linkages between the exchange rates and equity indexes including the diversity of sector. We use VAR model (the vector auto regression model which is an econometric model used to capture the linear interdependencies among variables, exchange rates and equity indexes. The sample of the study consists of USD/TL, Euro/TL, BIST Bank and BIST Industry. The data of the study includes the January 2011 and December 2014with daily data range.

  15. Productividad de una plantación de espárrago verde (Asparagus officinalis var. altilis L. con diferentes tamaños de “arañas” y densidades, en su séptimo año

    Directory of Open Access Journals (Sweden)

    J. Marina

    2012-01-01

    Full Text Available El espárrago es un cultivo rústico que tradicionalmente se ha iniciado mediante el sistema tradicional de “arañas”. El presente ensayo tuvo como objetivo evaluar la productividad total y comercial de una plantación de espárrago verde al séptimo año desde la plantación. El ensayo de 1.728 m2 está ubicado en la Chacra Experimental de la Facultad de Agronomía de la UNCPBA (36º 48’ latitud Sur y 59º 51’ longitud Occidental, en Azul, Argentina. La plantación, iniciada el 12/09/2003, se evaluó en el período 17/09/2010-01/11/2010. Las variables estudiadas fueron: tamaños de “arañas” grandes (AG > 200 g, medianas (AM 100-200 g y pequeñas (AP 0,05. El rendimiento general del ensayo fue PFT: 19.758 y PFN: 10.018 kg/ha; mientras que NTT: 483.425 y NTC: 477.200. En PFT se observaron diferencias significativas (p 0,05, siendo la media en PFN: 9.910 kg/ha. En densidad y en tamaño de “arañas” los resultados difirieron de los encontrados 2 años anteriores en los que se destacaron mayor densidad y tamaño grande; efectos atribuibles a la competencia intraespecífica.

  16. Doğrudan Sermaye Yatırımları, Ticari Dışa Açıklık ve Ekonomik Büyüme Arasındaki İlişki: Türkiye ve BRICS Ülkeleri Örneği

    Directory of Open Access Journals (Sweden)

    Nurgün TOPALLI

    2016-03-01

    Full Text Available Doğrudan sermaye yatırımları ve ekonomik büyüme ilişkisi gelişmiş ve gelişmekte olan ülkeler için tartışılan bir konudur. Bu çalışmanın amacı, BRICS ülkelerinde ve Türkiye’de 1982-2013 döneminde doğrudan sermaye yatırımları, ticari dışa açıklık ve ekonomik büyüme arasındaki ilişkiyi incelemektir. İlişkiyi incelemek amacıyla CADF birim kök testi ve Emirmahmutoğlu ve Köse (2011 nedensellik testi kullanılmıştır. Sonuçlar ekonomik büyümeden doğrudan yabancı yatırımlara doğru tek yönlü nedensellik olduğunu göstermiştir. Ayrıca ekonomik büyüme ve ticari dışa açıklık arasında çift yönlü nedensellik ilişkisi olduğu tespit edilmiştir. Doğrudan yabancı yatırımlar ve ticari dışa açıklık arasında çift yönlü nedensellik ilişkisi saptanmıştır. Bireysel ülke sonuçlarına göre ise karma bulgular elde edilmiştir.

  17. The relationship between Turkish junior national judo team athletes’ social values beliefs and self-esteem levelsTürk genç milli judo takım sporcularının sosyal değer inançları ile özsaygı seviyeleri arasındaki ilişki

    Directory of Open Access Journals (Sweden)

    Hande Baba Kaya

    2016-03-01

    Full Text Available The purpose of this study was to investigate the relationship between the self-esteem and the social value size of national youth judo team athletes. Data were collected by Coopersmith Self-Esteem Inventory adapted to Turkish by Özoğlu (1988 and Multidimensional Social Values Scale developed by Yavuz Bolat (2013 with a questionnaire developed by the researchers to gather personal information. Working group of the research consist of Turkish youths (15-19 years old are struggling in national judo team between 2015-2016 year in a total 118 athletes including 58 women and 60 men. Data were analysed by using SPSS 20 statistical programme, with oneway anova test. Results showed that there is a positive relation between the selfesteem and the social value size that family values, religious values, traditional values, scientific values but political values  have not found a significant relationship between self-esteem. As a result of that social value perceptions effect on self-esteem levels of young national judoka and that correlates positively with each other.   Özet Bu araştırmanın amacı genç milli judo takım sporcularının sahip oldukları sosyal değer boyutları ile özsaygı düzeyleri arasındaki ilişkiyi incelemektir. Katılımcıların sosyal değer boyutlarının ve özsaygı düzeylerini belirlemek için araştırmacılar tarafından geliştirilen Kişisel Bilgi Formu ve Coopersmith (1959 tarafından geliştirilen, ülkemizde Özoğlu (1988 tarafından geçerlilik ve güvenilirlik çalışması yapılan ‘Benlik Saygısı Envanteri (Coopersmith Self-Esteem Inventory ve Yavuz Bolat (2013 tarafından geliştirilen Çok Boyutlu Sosyal Değerler Ölçeği (Multidimensional Social Values Scale uygulanmıştır. Araştırmanın çalışma grubunu 2015-2016 yılları arasında Türk genç (15-19 yaş arası milli judo takımında mücadele eden 58 kadın 60 erkek olmak üzere toplam 118 sporcu oluşturmaktadır. Ara

  18. Öğretmenlerin Akademik Erteleme Davranışı İle Teknoloji Kullanım Özellikleri Arasındaki İlişki The Relationship Between Academic Procrastination And Technology Usage Of Teachers

    Directory of Open Access Journals (Sweden)

    Gonca KIZILKAYA CUMAOĞLU

    2012-12-01

    Full Text Available There are a lot of factors that affect the professional developmentof teachers. The academic procrastination and technology is the subjectof this research. The purpose of this research is identifying thetechnology usage and academic procrastination levels and investigatingthe relationship of technology usage and academic procrastination. Thisdescriptive study is conducted with teachers (115 of two schools inIstanbul by survey method. Data are collected with two tools for thestudy. One is procrastination scale which is developed by Aitken (1982and adapted to Turkish by Balkıs (2006 and the other is technologyquestionnaire (12 questions. SPSS 16.0 programmer was used inanalyzing the data. Pearson correlational analysis was used toidentifying the relationship of variables and t test, ANOVA was used inidentifying the significant difference between the variables. Determiningthe answers of teachers on questionnaire items mean and standarddeviation are used. The academic procrastination levels of teachers wasfound in middle level ( X =52,63 and there is no significant differencewas found between gender, branch, course load and academicprocrastination while their procrastination level was differentiaterespect to following agenda (p Öğretmenlerin mesleki gelişimlerini etkileyen pek çok etmenbulunmaktadır. Bu etmenlerden teknoloji kullanımı ve akademikerteleme davranışı bu araştırmanın konusudur. Bu araştırmanın amacıöğretmenlerin akademik erteleme ve teknoloji kullanım düzeylerininbelirlenmesi ve akademik erteleme davranışı ile teknoloji kullanımıarasındaki ilişkinin incelenmesidir. Betimsel çalışma olan bu araştırma,tarama (survey modeli ile İstanbul ilinde bulunan iki okulda çalışan115 kişilik bir öğretmen grubu üzerinde yürütülmüştür. Araştırmanınverileri Aitken (1982 tarafından geliştirilen, Balkıs (2006 tarafındanTürkçe’ye uyarlaması yapılan Erteleme Eğilimi Ölçeği (α = .89 ve 12

  19. 4. Sınıf Öğrencilerinin Üstbilişsel Okuma Stratejilerini Kullanma Durumları ve Bu Stratejilerle Okuduğunu Anlama Arasındaki İlişki 4th Grade Students' Using Metacognitive Reading Strategies Conditions and between the Relationship Reading Comprehension and Using These Strategies

    Directory of Open Access Journals (Sweden)

    Mustafa BAŞARAN

    2013-09-01

    Full Text Available Aim of this study is to determine that 4th grade students' usingmetacognitive reading strategies conditions and the relationshipbetween reading comprehension rates and using these strategies ratesin this grade. The Research method of this study is relational scan thatis a descriptive method. The universe of the study is 4th grade students,who attend state elementary schools in the center of Kütahya provincein 2012-2013 academic season. The sample of study is 89 4th gradestudents, who were selected from this universe. The study consists offour parts. In the first chapter, Metacognition and metacognitive readingstrategies are discussed. The method of study is explained in the secondchapter. The findings and the comments are available in the thirdsection. In the last chapter, there are the results of the study and thediscussing of results. According to the results of study, 4th gradestudents’ use often before reading, during reading and after readingmetacognitive reading strategies but students use fewer strategies forremembering. The gender of students has no significant effect on usingmetacognitive reading strategies However, the branch has significanteffect on the rate of use metacognitive reading strategies. According tothe results of the research there is not a significant relationshipbetween using metacognitive reading strategies rates andunderstanding. Bu araştırmada 4. sınıf öğrencilerinin üstbilişsel okuma stratejilerini kullanma durumlarının ve bu sınıf seviyesindeki öğrencilerin üstbilişsel okuma stratejilerini kullanma oranı ile okuduğunu anlamaları arasındaki ilişkinin tespiti amaçlanmıştır. Araştırmanın yöntemi, betimsel yöntemlerden, ilişkisel taramadır. Araştırmanın çalışma evreni 2012-2013 eğitim öğretim yılında Kütahya il merkezindeki ilkokullarda öğrenimine devam eden 4. sınıf öğrencileridir. Araştırmanın örneklemini ise bu evrenden rastgele seçilen bir devlet okulunun

  20. İstanbul'da vitamin kullanım alışkanlıkları ve bu alışkanlıkları etkileyen faktörler üzerine bir araştırma

    Directory of Open Access Journals (Sweden)

    Fatma Çoşkun

    2010-01-01

    Full Text Available Bu araştırmada İstanbul'da 4 farklı sosyo-kültürel grubu temsil eden 1000 kişilik denek grubunun vitamin kullanım alışkanlıkları ve tercihlerini etkileyen faktörlerin belirlenmesine çalışıldı. Araştırmaya katılan denekler tesadüfi örnekleme yöntemi ile seçildi ve yüz yüze görüşülerek kendilerinden konu ile ilgili soruları yanıtlamaları istendi. Araştırma sonucu elde edilen veriler, genel olarak ve aynı zaman da genel içerisindeki gruplara göre değerlendirilerek, grafik ve % oran olarak verildi. Araştırma sonucuna göre; kişilerin büyük bir çoğunluğunun düzensiz olarak vitamin kullanım alışkanlığına sahip olduğu, daha çok kendilerini iyi hissetmek, hastalıklara karşı dirençli olmak amacıyla vitamin kullanmayı tercih ettikleri tespit edildi. Daha iyi yaşam koşullarına ulaşmak için beslenmelerinde ki düzensizlik ve gıdalara olan güven kaygısı da kişileri vitamin kullanmaya yöneltmektedir. Bu noktada; vitamin tercihlerini nasıl yaptıkları ve yeterli bilince sahip olup olmadıkları incelendiğinde, sosyo- kültürel grupların birbirinden farklı olduğu tespit edildi. Kişiler beslenme ve vitamin kullanımı konusunda bilinçlendirilmelidir. Kişiler ayni zamanda, vitamin kullanımı ile ilgili tercih yaparken konusunda uzman kişilerden yardım almalıdırlar.

  1. Manuel Puig, El beso de la mujer araña : Francia, ALLCA XX, Université Paris X, 2002, edición crítica y coordinación: José Amícola y Jorge Panesi, colección Archivos 42, 805 páginas

    OpenAIRE

    Mancini, Adriana

    2003-01-01

    La edición crítica de El beso de la mujer araña de la colección Archivos preparada por los profesores José Amícola y Jorge Panesi atraviesa desde distintas perspectivas el controvertido universo literario de Manuel Puig. La elección de esta novela para dar cuenta de la estética del autor, siempre incómoda y por demás atractiva, queda ampliamente justificada después de un recorrido por las distintas partes del texto y el CD–Rom que la componen.

  2. Türkçe Öğretmen Adaylarının Öğrenme Stilleri ve Öğrenme Stratejileri Arasındaki İlişki The Relationship Between Learning Styles And Learning Strategies of Turkish Teacher Candidates

    Directory of Open Access Journals (Sweden)

    Erhan DURUKAN

    2013-03-01

    sonradan kazanılan ve kullanılan öğrenme biçimlerine dayanmaktadır. Bu nedenle öğrenme stilleri ile öğrenme stratejileri arasında bir ilişkinin olması beklenmektedir. Alan yazınında farklı disiplinlerde bu yönde çalışmaların bulunduğu fakat Türkçe eğitimi alanında bu yönde araştırmanın yer almadığı görülmüştür. Bu çalışmanın amacı Türkçe öğretmen adaylarının öğrenme stilleri ile öğrenme stratejileri arasındaki ilişkiyi belirlemektir. Araştırma Karadeniz Teknik Üniversitesi Fatih Eğitim Fakültesi Türkçe Eğitimi Bölümünde okuyan 256 öğrenci (1, 2, 3 ve 4. sınıflar üzerinde yürütülmüştür. Araştırmada öğrencilerin öğrenme stilleri Kolb Öğrenme Stilleri Ölçeği (KÖSE ile, öğrenme stratejileri ise Özdemir ve Güven tarafından geliştirilen Öğrenme Stratejilerini Belirleme Ölçeği (ÖSBÖ ile toplanmıştır. Araştırma ilişkisel tarama modelinde yapılmıştır. Öğrencilerin öğrenme stilleri ve öğrenme stratejilerine ilişkin bilgiler frekans ve yüzdelerle belirtilmiş; öğrenme stilleri ve öğrenme stratejileri arasındaki ilişki SPSS 16 programında Tek Yönlü ANOVA ile analiz edilmiştir. Araştırma sonunda öğrencilerin sırasıyla özümseyen, ayrıştıran, değiştiren ve yerleştiren öğrenme stiline sahip oldukları ve kullandıkları öğrenme stratejilerinin öğrenme stillerine göre farklılaştığı sonucuna varılmıştır. Elde edilen sonuçlar alan yazınında yer alan araştırmaların çoğunluğunun sonuçları ile benzerlik göstermiştir. Sonuçlardan hareketle öğretmen adaylarının öğrenme stillerinden haberdar olması ve buna uygun öğrenme stratejilerini kullanması yönünde önerilerde bulunulmuştur.

  3. The Relationship between Mathematics Achievement, Self-Regulated Learning Strategies, Epistemological Beliefs and Academic Self-Concept [Öz-düzenleyici Öğrenme Stratejileri, Epistemolojik İnançlar ve Akademik Benlik Kavramı ile Matematik Başarısı Arasındaki İlişki

    Directory of Open Access Journals (Sweden)

    Zeynep Dursun Sürmeli

    2017-04-01

    Full Text Available In this study, the correlation between math achievement and self-regulating learning strategies, epistemological beliefs, academic self-concept of 9th grade student was examined. In 2013-2014 academic year, the study was performed on 630 students of 9th grade that receive education in high schools chosen from the institution of secondary education in European side of İstanbul through random cluster sampling. In study of correlational survey model, the sub-scales of “Self-regulation” and “The Cognitive Strategy Use”, as “The Motivated Strategies for Learning Questionnaire”, was used. The epistemological beliefs of students were evaluated through “The Mathematics-Oriented Epistemological Beliefs Scale”. To evaluate the academic self-concept of students, “Academics Self-concepts Scale” was used. The math achievement of the students was evaluated by grade that they obtained from math achievement test. In the direction of the study purpose, the relation between regressive variables and regressing variables was examined by regression analysis techniques. The result of this study proved that there was statistically a meaningful correlation between the use of cognitive strategy, academics self-concept and the math achievement. In addition, it was shown that the math achievement was not present any statistical meaningful correlation with self-regulation and epistemological beliefs. In the result of this study, it was shown that the math achievement was significantly predicted (10% by the variable of academics self-concept whereas it was not significantly predicted by variables of self-regulating learning strategies and epistemological beliefs.[Bu araştırmada, dokuzuncu sınıf öğrencilerinin öz-düzenleyici öğrenme stratejileri, epistemolojik inançları ve akademik benlik kavramları ile matematik başarısı arasındaki ilişki incelenmiştir. Araştırma, 2013-2014 eğitim öğretim yılında İstanbul Avrupa yakas

  4. An investigation of the relationship between positive and negative perfectionism and study skills with canonical correlationOlumlu ve olumsuz mükemmeliyetçilik ile ders çalışma becerileri arasındaki ilişkinin kanonik korelasyon ile incelenmesi

    Directory of Open Access Journals (Sweden)

    Mustafa İlhan

    2013-01-01

    Full Text Available Abstract The aim of this research was to investigate the relationships between positive and negative perfectionism and study skills. Relational screening model was used in this study with this aim. Workgroup of the investigation consists of 207 students receiving study in three high schools in Battalgazi District of Malatya City, in the spring semester of 2011-2012 school year. 105 (50.72% of the students in the workgroup are female and 102 (50.28% of whom are male. In the research, “The Positive and Negative Perfectionism Scale” developed by Kırdök (2004 has been used to determine the perfectionism characteristics of the students and “The Study Skills Scale” developed by Mr. Bay, Tuğluk and Gençdoğan (2004 has been used to test the study skills of the students. In the research, the relationship between the perfectionism data set composing of positive perfectionism and negative perfectionism variables; and study skills data set composing of motivation, time management, and exam preparation-test anxiety management variables has been investigated by canonical correlation analysis. The results of canonical correlation analysis demonstrated that there were significant relationships between positive and negative perfectionism and study skills. Common variance that the positive and negative perfectionism and study skills data sets share has been calculated as 35.59%. ÖzetBu araştırmada, olumlu ve olumsuz mükemmeliyetçilik ile ders çalışma becerileri arasındaki ilişkinin incelenmesi amaçlanmıştır. Bu amaca uygun olarak araştırmada ilişkisel tarama modeli kullanılmıştır. Araştırmanın çalışma grubu, 2011-2012 Öğretim Yılı Bahar Dönemi’nde Malatya ili Battalgazi İlçesindeki üç lisede öğrenim gören 105’i (%50.72 bayan, 102’si (%50.28 ise erkek olmak üzere toplam 207 öğrenciden oluşmaktadır. Araştırmada öğrencilerin mükemmeliyetçilik özelliklerinin belirlenmesinde Kırdök (2004 taraf

  5. İnovasyon Faaliyetlerinde Kullanıcının Yeri ve Çevrimiçi Kullanıcı İnovasyon Araçları(Role of Users in Innovation Activities and Web Based User Innovation Tools

    Directory of Open Access Journals (Sweden)

    Burcu İLTER

    2016-04-01

    Full Text Available Ekonominin birçok alanında, hem kullanıcı temelli inovasyonun hem de açık inovasyonun, geleneksel olarak firmaların kendi bünyelerinde gerçekleştirdikleri inovasyon faaliyetleri ile rekabet ettiğini ve onun yerini alabileceğini gösteren örnekler giderek artmaktadır. Bu durum göz önüne alındığında, kullanıcıların inovasyon sürecine dahil edilmesinin önemi anlaşılmaktadır. Bu süreçte, geleneksel araçların yanı sıra, çevrimiçi araçların da şirketler tarafından sıklıkla kullanıldığı görülmektedir. Ülkemizde yapılmış olan çalışma sayısının yetersiz olması ve konunun inovasyon çalışmalarının geleceği açısından önem taşıdığının düşünülmesi sebebiyle bu çalışmada, çevrimiçi kullanıcı inovasyon araçları hakkında detaylı bir literatür araştırmasına yer verilmiş ve Fortune ilk 500 Türkiye listesinde yer alan şirketlerin, kullanıcılarını inovasyon süreçlerine dahil ederken söz konusu araçları ne ölçüde kullandıkları belirlenmiştir. Bulgular, kullanıcılardan daha çok ürün fikri geliştirme aşamasında faydalanıldığını, şikayet kutuları, pazar istihbarat hizmetleri ve dilek öneri kutularının, firmalar tarafından en çok kullanılan çevrimiçi araçlar olduğunu ve çevrimiçi şikayet kutusu ve inovasyon araç takımları kullanımının sektörler arasında farklılık gösterdiği göstermektedir. Bu çalışmanın ülkemizde çevrimiçi kullanıcı inovasyon araçlarına yönelik farkındalığı arttırması beklenmektedir. Considering the examples illustrating the fact that both user innovation and open innovation compete and substitute innovation undertaken by producers, the importance of user integration into innovation process becomes obvious. Throughout this process, along with traditional methods, firms also benefit from web based user innovation tools. Regarding the gap of number of researches on web based user

  6. Avaliação da resposta tecidual em ratos, a microrganismos anaeróbios e facultativos inativados associados a soluções preparadas com extratos vegetais aquoso e hidroalcoólico de Araçá (Psidium cattleianum): análise edemogênica e microscópica

    OpenAIRE

    Ruviére, Denise Belucio [UNESP

    2008-01-01

    O objetivo do presente estudo foi avaliar, in vivo, a resposta biológica imediata e tardia de soluções aquosa e hidroalcoólica preparadas com extrato vegetal de Araçá (Psidium cattleianum) associadas a microrganismos inativados. O controle utilizado foi soro fisiológico associado aos microrganismos inativados. Foi utilizado 0,1mL de uma suspensão contendo Porphyromonas gingivalis ATCC 33277, Prevotella intermedia ATCC 25611, Fusobacterium nucleatum ATCC 25586, Enterococcus faecalis ATCC 29212...

  7. Örgütsel Bağlılık ile Örgütsel Sinizm ve Örgütsel Muhalefet Arasındaki İlişki The Relationship Between Organizational Commitment and Organizational Cynicism and Organizational Dissent

    Directory of Open Access Journals (Sweden)

    Kaya YILDIZ

    2013-07-01

    örülmektedir. Örgütsel sinizm ve örgütsel muhalefet bu değişkenlerden biridir. Son yıllarda örgütsel sinizm ve örgütsel muhalefet örgütsel davranış disiplininin ilgilendiği yeni konular içerisinde yer almaktadır. Öğretmenlerin örgütsel bağlılık düzeylerini etkileyen sinizm ve muhalefet algılarının bilinmesi önemli görülmüştür. Bu araştırmanın amacı; İlkokullarda görev yapan öğretmenlerin örgütsel bağlılık ile örgütsel sinizm ve örgütsel muhalefet algıları arasındaki ilişkiyi saptamaktır. Araştırmanın çalışma evrenini, 2012-2013 öğretim yılında Bolu ili merkez ilçe sınırlarında bulunan ilkokullarda görev yapan 219 sınıf öğretmeni oluşturmaktadır. Araştırma verileri, ölçeklerle toplanmıştır. Araştırma verileri öğretmenlerden Meyer ve Allen (1984 tarafından geliştirilen ve Boylu, Pelit ve Güçer (2007 tarafından Türkçe’ye uyarlanan “Örgütsel Bağlılık Ölçeği”, Brandes, Dharwadkar ve Dean (1999 tarafından geliştirilen Kalağan (2009 tarafından Türkçeye uyarlanan “Örgütsel Sinizm Ölçeği” ve Özdemir (2010 tarafından geliştirilen Örgütsel Muhalefet ölçeğinin “Muhalif Davranışlar Alt Ölçeği” ile toplanmıştır. Araştırmada veriler; SPSS 16.0 paket programında frekans, yüzde, aritmetik ortalama, standart sapma ve korelasyon gibi betimsel istatistiksel işlemlerle analiz edilmiştir. Araştırmada İlkokullarda görev yapan öğretmenlerin örgütsel bağlılık ile örgütsel sinizm ve örgütsel muhalefet algıları arasında bir ilişki olduğu sonucuna ulaşımıştır. Öğretmenlerin örgütsel bağlılık ile örgütsel sinizm algıları arasında yüksek düzeyde negatif, örgütsel muhalefet algıları ile ise orta düzeyde negatif bir ilişki olduğu sonucuna ulaşılmıştır.

  8. Kullanımlar ve Doyumlar Yaklaşımı Çerçevesinde Facebook Uygulamalarının İncelenmesi: Yaşar Üniversitesi Öğrencileri Üzerine Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Özlem Alikılıç

    2014-02-01

    Full Text Available   Kullanımlar ve doyumlar kuramı, gençlerin Facebook uygulamalarını kullanma, eğilim ve amaçlarını anlamaya yönelik bir yol ve teorik altyapı sağlamaktadır. Bu çalışma, Yaşar Üniversitesi öğrencilerinin sosyal ağlardaki kullanım ve doyumlar motivasyonlarını incelemektedir. Bununla beraber, Facebook’taki uygulamaların kullanıcı motivasyonlarını araştırırken, bu motivasyonlar ile kullanıcıların etkileşimlerini destekleyici uygulamaların özellikleri arasındaki ilişkiye de ışık tutmaya çalışmaktadır.Ankete katılan öğrencilerin (n= 406 çoğunun Facebook’u eski bağları kurmak / güçlendirmek, ardından temel faydalar doğrultusunda, üçüncü olarak zevkli vakit geçirme motivasyonları ile kullandıkları saptanmıştır. Ayrıca üniversite öğrencilerinin Facebook uygulamaları arasında, eğlence uygulamalarını, daha sonra arkadaş ve aile uygulamalarını, üçüncü olarak da yaşam tarzı uygulamalarını kullandıkları bulunmuştur. Araştırma, gelecekteki çalışmalara ışık tutacak olan öneriler kısmı ile tartışılmıştır.

  9. An Empirical Investigation on International Journals of Tourism, Travel, Recreation and Leisure Dünya Genelinde "Turizm", "Rekreasyon" ve "Boş Zamanlar ve Değerlendirilmesi" Alanlarında Yayımlanmakta Olan Akademik Dergiler Üzerinde Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Nazmi Kozak

    1999-03-01

    Full Text Available This study presents the results of an empirical research carried out amongst tourism, travel, recreation and leisure journals published, internationally. The findings of previous research were used for the development of the questionnaire instrument. The questionnaire was mailed to the Chief-Editors of 115 journals. A total of 33 usable questionnaires were returned yielding a 29 Chief-Editors of 115 journals. A total of 33 usable questionnaires were returned yielding a 29 percent response rate. SPSS for Macintosh was used for the analysis of data. Findings were analysed on the basis of three groups entitled general issues 'review process of manuscripts' and 'publication of manuscripts'. The study revealed that the journals were in an attempt to be consistent with the manuscript review and publication guidelines recognised, in the international academia. Bu çalışma, uluslararası boyutta yayımlanmakta olan "Turizm", Rekreasyon" ve "Boş Zamanlar ve Değerlendirilmesi" alanlarındaki akademik dergiler üzerinde yürütülen araştırmanın verileri baz alınarak hazırlanmıştır. Araştırma, daha önce bu alanda gerçekleştirilmiş çalışmaların bulgularından yararlanılarak hazırlanan sorular ile yürütülmüştür. Adresleri saptanan 115 derginin editörüne postayla gönderilerilen araştırma sorularına 33 derginin editöründen yanıt alınmıştır. Elde edilen bulguların SPPS for Mackintosh istatistik paket programında analiz edilmesiyle, dergilerle ilgili "genel", "makale denetleme" ve makale yayımlama" uygulamalarına ilişkin çeşitli bulgulara ulaşılmıştır. Araştırmada sonuç olarak, genel itibariyle dergilerin dünya genelinde geçerliliği kabul edilmiş makale denetleme ve yayımlama kurallarına uyma çabası içerisinde olduğu ortaya çıkarılmıştır.

  10. Examining the relationship between university students’ lifelong learning tendencies and their self-efficacy perceptionsÜniversite öğrencilerinin yaşam boyu öğrenme eğilimleri ile özyeterlik algıları arasındaki ilişkinin belirlenmesi

    Directory of Open Access Journals (Sweden)

    Aşkın Karaduman

    2017-02-01

    zyeterlik algıları arasındaki ilişkiyi belirlemektir. Araştırma ilişkisel bir tarama modelidir. Araştırmanın çalışma grubunu 2014-2015 akademik yılında Bartın Üniversitesi'nin farklı fakültelerinde/ yüksekokulunda lisans programlarına devam eden 1. ve 4. sınıf öğrencilerinden toplam 470 katılımcı oluşturmaktadır. Araştırmada veri toplama aracı olarak Yaşam Boyu Öğrenme Eğilimlerini Belirme Ölçeği (Coşkun, 2009 ile Genellenmiş Öz-yetkinlik Beklentisi Ölçeği (Jerusalem ve Schwarzer, 1979 kullanılmıştır. Araştırma sonuçlarına göre üniversite öğrencilerinin yaşam boyu öğrenme eğilimleri yüksek düzeydedir. Yaşam boyu öğrenme eğilimi araştırmanın demografik değişkenleri açısından incelendiğinde cinsiyet, baba mesleği ve serbest zaman etkinlikleri içerisinde yer alan kitap okuma ve televizyon izleme etkinliklerinde anlamlı bir farklılık bulunmuştur. Bu anlamlı farklılığın kızların, babası muhasebeci olanların, kitap okuyan ve televizyon izlemeyen üniversite öğrencileri lehine olduğu görülmüştür. Araştırma sonuçlarına göre üniversite öğrencilerinin özyeterlik algılarının da yüksek düzeyde olduğu tespit edilmiştir. Özyeterlik algıları araştırmanın demografik değişkenleri açısından incelendiğinde cinsiyet, fakülte/yüksekokul ve serbest zaman etkinlikleri içerisinde yer alan kitap okumama ve sinemaya gitme etkinliklerinde anlamlı bir farklılık bulunmuştur.  Anlamlı farklılığın erkeklerin,  Beden Eğitimi ve Spor Yüksekokulu öğrencilerinin, kitap okumayan ve sinemaya giden üniversite öğrencilerinin lehine olduğu görülmüştür.  Üniversite öğrencilerinin yaşam boyu öğrenme eğilimleri ile özyeterlik algıları arasında pozitif yönde anlamlı bir ilişkinin olduğu tespit edilmiştir.

  11. Ocorrência de larva migrans na areia de áreas de lazer das escolas municipais de ensino infantil, Araçatuba, SP, Brasil Presence of larva migrans in sand boxes of public elementary schools, Brazil

    Directory of Open Access Journals (Sweden)

    Cáris M Nunes

    2000-12-01

    Full Text Available A areia das áreas de lazer de escolas podem constituir vias de transmissão para várias zoonoses parasitárias, representando risco potencial para as crianças que brincam nesses locais. Foi avaliada a ocorrência de agentes de larva migrans em 28 escolas municipais de ensino infantil de Araçatuba, SP. Foram colhidas 535 amostras de areia das áreas de lazer dessas escolas nos meses de janeiro (verão e julho (inverno de 1997 para estabelecimento da freqüência de isolamento de larvas e/ou ovos de Ancylostoma spp. e de ovos de Toxocara spp., pelos métodos de centrífugo-flutuação e de Baermann, respectivamente. A presença de larvas de Ancylostoma spp. foi observada, em pelo menos uma das amostras, em 35,7% (10/28 das amostras da primeira colheita (verão e em 46,4% (13/28 quando da segunda colheita (inverno. Ovos de Toxocara spp. não foram encontrados e a presença de ovos de Ancylostoma spp. foi observada em 0,56% (3/535 das amostras.There are sandboxes in public elementary school playground areas in Brazil, which can be harmful to children. They are at risk of cutaneous and visceral larva migrans infection caused by Ancylostoma spp. and Toxocara spp., respectively. The study was designed to investigate contamination by Toxocara spp. and/or their eggs and Ancylostoma spp. larvae in sand samples collected from the schools' sandboxes. Five hundred and thirty-five sand samples from 28 public elementary schools were collected during summer and winter and analyzed by both Baermann´s method and centrifugal flotation technique. Ancylostoma spp. larvae were found in 35.7% (10/28 schools in summer time and in 46.4% (13/28 schools in the winter time. Eggs of Toxocara spp. could not be recovered from the samples analyzed and eggs from Ancylostoma spp. were seen in 0.56% (3/535 of the samples.

  12. Global Markaların Sosyal Medyada Gündem Belirlemesi: Markaların 2.0 Gündemi Üzerine Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Emre Ş. Aslan

    2016-10-01

    Full Text Available Markaların milyonlarca dolar harcayarak gerçekleştirdikleri tüm iletişim çalışmalarının ana amacı tüketicilerin satın alma davranışlarını kendilerinden yana olacak şekilde değiştirmektir. Bunun için de onların gündemlerine girebilmeye ve stratejiye ihtiyaç duymaktadırlar. Günümüzde bunun en maliyetsiz ve en kolay yolu ise web 2.0 olarak da ifade edilen sosyal medyadır. Bu çalışma çerçevesinde medya, kamu ve siyasal olmak üzere üç gündem evresinden oluşan gündem belirleme çalışmalarına yeni bir gündem evresinin yani marka gündeminin eklenmesi gerektiği üzerinde durulmaktadır. Bu çalışmanın ana konusunu, global markaların sosyal medyada hedef kitleyi olumlu yönde etkileyebilmek için onların gündemlerine nasıl girmeye çalıştıkları, sosyal medyada gündemi belirleyebilmek için hangi marka stratejilerinden yararlandıkları oluşturmaktadır. Bu bağlamda, bu çalışma, global markaların sosyal medya aracılığıyla gündemi nasıl belirlediklerini ve yönettiklerini analiz etmeyi amaçlamaktadır.  Bu çalışmada içerik analizi ve online anket (survey olmak üzere iki farklı araştırma yöntemine başvurulmuştur. 

  13. Influência do sombreamento sobre os teores de carboidratos e fenóis em estacas semilenhosas de araçazeiro Influence of shading on the carbohydrates and phenols in cattley guava cutting

    Directory of Open Access Journals (Sweden)

    João Guilherme Casagrande Junior

    1999-12-01

    Full Text Available O presente trabalho teve por objetivo avaliar a influência do sombreamento sobre os teores de carboidratos não-estruturais e fenóis solúveis totais em folhas e caules de estacas de plantas matrizes de araçazeiro (Psidium cattleyanum Sabine. Foram coletadas estacas semilenhosas em novembro de 1996, de plantas mantidas sob diferentes níveis de sombreamento (utilizou-se sombrite com malha comercial de 30, 50 e 70% de redução da luz e de plantas mantidas a pleno sol. Os teores de carboidratos solúveis totais, redutores, amido e fenóis solúveis totais foram determinados nas folhas e no caule de cada estaca. Com o aumento do sombreamento, observou-se uma elevação dos teores de amido e uma redução nos teores de carboidratos redutores nas folhas e no caule e, apenas no caule, uma redução dos carboidratos solúveis totais. Os compostos fenólicos foram reduzidos significativamente nas folhas, à medida que se aumentou a porcentagem de sombreamento, ao passo que nos caules verificou-se uma redução, mas pouco pronunciada, ratificando a afirmação de que plantas submetidas a condições de baixa radiação solar alteram seus teores de compostos de reserva e fenóis.The present work proposed to evaluate the influence of shading on the non-structural carbohydrates and total soluble phenols in leaves and stem of cutting, collected from cattley guava (Psidium cattleyanum Sabine stock plant. The half-wood cuttings were collected in November of 1996, in plants kept under different shading levels (30, 50 e 70% of reducing light and plants kept full sun. The content of total and reducing soluble carbohydrates, starch and total soluble phenols were determined on the leaves and on the stem of each cutting. It was observed that with the increase of shading, there was a raise on starch content and a decrease on reducing carbohydrates content both on leaves and stems. Only on the stem a decrease on total soluble carbohydrates content was observed

  14. Aras Mhuire Nursing Facility, Beechgrove, Drogheda, Louth.

    LENUS (Irish Health Repository)

    Kennedy, Harry G

    2011-09-01

    This series of rating \\'ladders\\' is intended to allow a quantitative and qualitative analysis of the use of restrictive and intrusive interventions as part of the therapeutic management of violence and aggression in psychiatric hospital settings. This is an evolving handbook. The ladders are currently organised to facilitate a behavioural analysis. Context, antecedents, behaviour, interventions, consequences are conceptualised as a series of events organised in temporal sequence so that causes, interactions and effects can be considered. The complexity of analysis possible is limited by the statistical power of the numbers of cases and events available. \\r\

  15. Aras Ghaoth Dobhair, Meenaniller, Derrybeg, Donegal.

    LENUS (Irish Health Repository)

    Kane, Bridget

    2009-08-01

    This paper provides an analysis of the collaborative work conducted at a multidisciplinary medical team meeting, where a patient’s definitive diagnosis is agreed, by consensus. The features that distinguish this process of diagnostic work by consensus are examined in depth. The current use of technology to support this collaborative activity is described, and experienced deficiencies are identified. Emphasis is placed on the visual and perceptual difficulty for individual specialities in making interpretations, and on how, through collaboration in discussion, definitive diagnosis is actually achieved. The challenge for providing adequate support for the multidisciplinary team at their meeting is outlined, given the multifaceted nature of the setting, i.e. patient management, educational, organizational and social functions, that need to be satisfied.

  16. Turistlerin destinasyon seçiminde rol oynayan bir etken olarak yerel mutfaklar: İzmir Yarımadası’nı ziyaret eden turistlerin algılamaları üzerine bir araştırma

    OpenAIRE

    ZAĞRALI, Egem; AKBABA, Atilla

    2015-01-01

    Bu çalışmada İzmir Yarımada örneği üzerinde yerel yemeklerin turistler açısından ne derecede çekicilik unsuru oluşturduğu araştırılmıştır. Çalışma kapsamında İzmir Yarımadası’nı ziyaret eden yerli ve yabancı turistler üzerinde (n=430) bir alan araştırması yapılarak, turistlerin düşünceleri ve algılamaları çerçevesinde ortaya çıkan veriler irdelenmiştir. Çalışma sonucunda turistlerin Yarımada’yı tercihlerinde yerel yemeklerin belirleyici bir rol oynamadığı, ancak yerel yemekleri beğendikleri v...

  17. Artvin yöresinde bazı kurakçıl karakterli türlerle yapılan ağaçlandırma çalışmasında dikim başarısının araştırılması

    OpenAIRE

    Yaşar Balaban, Işık

    2011-01-01

    Bu çalışmada, Artvin Yöresi, Hamamlı mevkiindeki bir erozyon kontrol alanına dikilen kokulu ardıç (Juniperus foetidissima), karaçam (Pinus nigra), peruka çalısı (Cotinus coggyria), fıstıkçamı (Pinus pinea), nar (Punica granatum), kızılçam (Pinus brutia) gibi kurakçıl türlerin yaşama yüzdeleri, fidanların kök boğaz çapı ve boylarına göre başarı durumu belirlenmeye çalışılmıştır. Ayrıca ince odun talaşı ve kalın odun talaşı kullanılarak yapılan malçlama işleminin etkisi araştırılmıştır. Araştır...

  18. Türkçe Öğretmeni Adaylarının Farklı Türlerdeki Cümlelerde Vurgulu Sözcükleri Belirleyebilme Becerilerine Yönelik Bir Araştırma Investigation On Skills Of Turkish Teacher Candidates For Determination Of Stressed Words In Different Types Of Sentences

    Directory of Open Access Journals (Sweden)

    Burak TÜFEKÇİOĞLU

    2013-07-01

    Full Text Available In relation to comprehensible and fluent speaking skills, the professional qualifications, which Turkish teacher candidates need to improve, also include emphatic speaking/reading. In professional sense, particularly Turkish teacher candidates engaged in improving speaking/reading skills of primary school second stage students are required to be aware of their above-mentioned primary duty. Therefore, the subject of our investigation comprises the skills of Turkish teacher candidates for determining the words need to be stressed in different types of sentences. This investigation was conducted on 30 teacher candidates studying in Turkish Language Department, Teacher Training Faculty of Mersin University. As a result of this investigation, it has been demonstrated that the participants do not predominantly stress the words, theoretically deemed as stressed words, in Turkish language, and focus stress on semantically related last phrase in elliptical sentence, and further focus stress mostly on prepositions, conjunctions and exclamations in the sentences, and that the ratios of the participants who are able to determine stressed words in loud readings are ranked low, and that in the cases that the words theoretically required to be stressed are proper names, the ratios of the listeners who are able to determine stressed words both in sentences and in loud readings increase. Anlaşılır ve akıcı konuşma becerisine bağlı olarak vurgulu konuşma/okuma Türkçe öğretmeni adaylarının kazanması gereken mesleki nitelikleri arasındadır. Bu nedenle araştırma konumuzu, Türkçe öğretmeni adaylarının farklı türlerdeki cümlelerde vurgulu söylenmesi gereken sözcükleri belirleyebilme becerileri oluşturmaktadır. Araştırma, 2010 – 2011 eğitim-öğretim yılında Mersin Üniversitesi Eğitim Fakültesi Türkçe Eğitimi Bölümünde okuyan 31 öğretmen adayı üzerinde gerçekleştirilmiştir. Katılımcıların Türkiye T

  19. Trakya Yöresinde Yetiştirilen Sığırların Sütlerinde Brucella Türlerinin Varlığının Bakteriyolojik ve Moleküler Yöntemlerle Karşılaştırılmalı Olarak Araştırılması

    OpenAIRE

    ABDELKAREEM, Ali A.; İKİZ, Serkan; Seyyal AK

    2011-01-01

    Trakya yöresinde Brucella etkenlerinin varlığının araştırıldığı bu çalışmada, farklı ilçe, köy ve işletmelerde yetiştirilen Brucella aşısı uygulanmamış, sütleri kullanımda olan 75 ineğe ait süt örnekleri tesadüfi olarak toplandı. Örneklerde, Brucella türleri ve Brucella spesifik DNA' sı araştırıldı. İzolasyon için süt örneklerinden Brucella selektif besiyerlerine ekimler yapıldı. Sütte spesifik DNA'nın saptanması için PCR kullanıldı. Bakteriyolojik çalışmaların sonucunda, 75 süt örn...

  20. Trakya Yöresinde Yetiştirilen Sığırların Sütlerinde Brucella Türlerinin Varlığının Bakteriyolojik ve Moleküler Yöntemlerle Karşılaştırılmalı Olarak Araştırılması

    OpenAIRE

    ABDELKAREEM, Ali A.; İKİZ, Serkan; Seyyal AK

    2011-01-01

    Trakya yöresinde Brucella etkenlerinin varlığının araştırıldığı bu çalışmada, farklı ilçe, köy ve işletmelerde yetiştirilen Brucella aşısı uygulanmamış, sütleri kullanımda olan 75 ineğe ait süt örnekleri tesadüfi olarak toplandı. Örneklerde, Brucella türleri ve Brucella spesifik DNA' sı araştırıldı. İzolasyon için süt örneklerinden Brucella selektif besiyerlerine ekimler yapıldı. Sütte spesifik DNA'nın saptanması için PCR kullanıldı. Bakteriyolojik çalışmaların sonucunda, 75 süt örneğinin üç ...

  1. İ.Ü. Orman Fakültesi Araştırma Ormanı’nda Eylül 2007-Ağustos 2009 Dönemi Güncel Polen Dağılımı

    OpenAIRE

    Karlıoğlu, Nurgül; Akkemik, Ünal

    2012-01-01

    ÖzetÇalışma, İ.Ü. Orman Fakültesi Araştırma Ormanı’nda vejetasyonun çeşitlilik gösterdiği 3 örnek alanda (orman içi, orman kenarı ve açık alan) 2007-2009 yılları arasında toprağa düşen odunsu ve otsu bitki polen yoğunluğunu (cm2/ay) incelemek ve polen yoğunluğu değerlerinin önemli meteorolojik parametrelerle olan ilişkisini ortaya koymak amacıyla gerçekleştirilmiştir. Üç ayrı örnek alana Tauber tipi polen tuzakları yerleştirilmiş ve aylık olarak değiştirilmiştir. 2007-2008 yılına ait odunsu b...

  2. Relationship between stigma levels of teachers and teacher’s organizational justice perceptionsÖğretmenlerin damgalama düzeyleri ile örgütsel adalet algıları arasındaki ilişki

    Directory of Open Access Journals (Sweden)

    Murat Önk

    2016-03-01

    Full Text Available The purpose of this study was to determine the relationship between stigma levels of teachers and teachers’ organizational justice perceptions. Relational survey model was used in research. Teachers’ opinions on stigma level and organizational justice were reviewed. A total of 204 public school teachers (elemantary and high employed in Ankara participated in the study. The "Stigma Scale” developed by Yaman and Güngör (2013 and "Organizational Justice Scale”developed by Hoy and Tarter (2004 were used to gather data. The data was analyzed by using Pearson Product-Moment Correlation Coefficient, Descriptive Statistics (frequency, percentage, arithmetic average, standard deviation, and multiple regression analysis techniques. Results indicated that teachers’ stigma scores were high in prejudice and psychological health  and the participants had positive perceptions about organizational justice at public schools. There was meaningful negative relationship between stigma levels of teachers and organizational justice perceptions of teachers. Consequently, stigma level is one of the factors that affect organizational justice negatively in schools.   Özet Bu araştırmanın amacı, Ankara Büyükşehir Belediyesi sınırları içerisinde bulunan merkez ilçelerdeki resmi ilköğretim ve ortaöğretim kurumlarında görev yapan öğretmenlerin görüşlerine göre, öğretmenlerin damgalama düzeyleri ile örgütsel adalet algıları arasındaki ilişkiyi saptamaktır. Araştırma, ilişkisel tarama modelindedir. Araştırma modelinde, biri bağımsız/dışsal (öğretmenlerin damgalama düzeyi, biri bağımlı/içsel (öğretmenlerin örgütsel adalet algıları olmak üzere iki değişken bulunmaktadır. Araştırmanın örneklemini, Ankara Büyükşehir Belediyesi sınırları içerisinde bulunan merkez ilçelerdeki resmi ilköğretim ve ortaöğretim kurumlarında görev yapan toplam 204 öğretmen oluşturmaktadır. Araştırmada veri

  3. Proventricular dilatation disease: an emerging exotic disease of parrots in Australia.

    Science.gov (United States)

    Doneley, R J T; Miller, R I; Fanning, T E

    2007-03-01

    Proventricular dilatation disease is a viral disease seen as a segmental neuropathy in parrots. It has always been believed to be a disease exotic to Australia, with the only reported case being a legally imported Green Wing Macaw (Ara chloroptera) in 1993. This paper reports a cluster of cases seen in south-east Queensland in 2005 to 2006. Clinical signs, autopsy findings and histopathological findings are described. No pattern or common source for these cases could be identified. The implications for Australian aviculture and avifauna are discussed.

  4. Mobilizing preconsciousness social messages: A mixed research on teaching staffBilinç öncesi sosyal mesajların harekete geçirilmesi: Öğretim elemanları üzerine karma araştırma

    Directory of Open Access Journals (Sweden)

    Süreyya Karsu

    2016-03-01

    Full Text Available The purpose of the study is to reveal whether the preconscious messages which are given as social messages to teaching staff, will cause any change in their physical activity habits. And to suggest social marketing strategies which are required to be developed in that direction. The mixed research method and triangulation  model were both used in the study. The teaching staff of AİBÜ Gölköy Campus were the main mass and the study was conducted around 15th January 2015- 25th May 2015. Convenience sampling method was utilized from non-random sampling methods.  According to findings of mix research, “both experimental and control groups had awareness on physical activity and they were both affected to valuate themselves on physical activity levels” were concluded. Beside these, another major conclusion was; the preconscious messages which are given to affect control groups’ physical activity habits had negative impact on control group.   Özet Çalışmanın amacı, öğretim elemanlarına sosyal mesaj olarak verilen bilinç öncesi mesajların fiziksel aktivite alışkanlıkları üzerinde değişim yaratıp yaratmayacağını ortaya koymak, bu yönde gerekli sosyal pazarlama stratejilerinin geliştirilmesinde önerilerde bulunmaktır. Araştırmada, karma araştırma yöntemi ve çeşitleme modelinden yararlanılmıştır. Araştırmada tesadüfi olmayan örnekleme yöntemlerinden, kolayda örnekleme yöntemi kullanılmıştır. Araştırma AİBÜ Gölköy Yerleşkesi’nde 15 Ocak 2015-25 Mayıs 2015 tarihlerinde yürütülmüştür. Uygulanan karma araştırma yöntemi sonucunda hem deney, hem kontrol grubu için fiziksel aktivite konusunda farkındalık ve katılımcıların kendilerini fiziksel aktivite düzeyleri konusunda değerlendirmeleri açısından etki yarattığı sonucuna ulaşılmıştır. Önemli bir diğer sonuç da bilinç öncesi mesajların fiziksel aktivite alışkanlığını etkileme boyutunda deney grubu

  5. Investigation of relationship between pedagogical formation program students’ personality traits and attitudes towards teaching professionPedagojik formasyon öğrencilerinin kişilik özellikleri ve öğretmenlik mesleğine yönelik tutumları arasındaki ilişkinin incelenmesi

    Directory of Open Access Journals (Sweden)

    Mustafa Uslu

    2013-09-01

    Full Text Available The aim of this study is assessment of the relationship between pedagogical formation program students’ attitudes personality traits and towards teaching profession. For this purpose, in order to determine students’ personality characteristics is used Adjective Based Personality Scale (ABPT which is developed by Bacanlı, İlhan ve Aslan (2009, in order to determine pedagogical formation program students’ attitudes towards teaching profession is used Attitude Scale of Teaching Profession which is developed by Çetin (2006. The working group containing 220 female and 137 male totally 357 students is composed of graduated students attending the pedagogic formation education in Selcuk University in the academic year of fall and spring in 2012-2013. According to the analyzed of the research is found a relationship between students ‘attitudes towards teaching profession and personality traits in terms of openness to experience, extraversion, agreeableness and conscientiousness, there is a meaningful and positive relation the level of .05. Özet Bu araştırmanın amacı; pedagojik biçimlenme programı öğrencilerinin kişilik özellikleri ile mesleğe yönelik tutumları arasındaki ilişkinin incelenmesidir. Bu amaç doğrultusunda öğrencilerin kişilik özelliklerini belirlemek için Bacanlı, İlhan ve Aslan (2009 tarafından geliştirilen “Sıfatlara Dayalı Kişilik Testi (SDKT”, formasyon öğrencilerinin mesleğe yönelik tutumlarını belirlemek amacı için ise, Çetin (2006 tarafından geliştirilen “Öğretmenlik Mesleğine Yönelik Tutum Ölçeği (ÖMTÖ” kullanılmıştır. Araştırma örneklemi Selçuk Üniversitesinde pedagojik formasyon eğitimine devam eden, 357 öğrenciden oluşmuştur (220 bayan, 137 erkek. Veriler 2012-2013 bahar ve güz döneminde, toplanmış ve analiz edilmiştir. Araştırmada yapılan istatistiksel analizler sonucunda kişilik özellikleri ve mesleğe yönelik tutum arasında d

  6. Examination of relationship between communication skills, burnout levels and life satisfaction levels of football coaches Futbol antrenörlerinin iletişim becerileri, tükenmişlik düzeyleri ve yaşam tatminleri arasındaki ilişkinin incelenmesi

    Directory of Open Access Journals (Sweden)

    Yakup Akif Afyon

    2013-06-01

    Full Text Available The purpose of this study is to examine the relationship between burnout levels, communication skills and life satisfaction levels of football coaches. A survey was applied to 120 football coaches who attended to Football Coach Development Seminar that was held in July 2012 in Muğla and 80 surveys were evaluated after removing 40 incorrect surveys. As a result, a negative relationship (r=-.293, p<,05 was determined between communication skills and emotional burnout levels of football coaches. A positive relationship (r=.280, p<,05 was found between coaches' life satisfaction levels and the variable of age and a negative relationship (r=-.275, p<,05 was found between coaches' life satisfaction levels and their education levels. In addition, a negative relationship (r=-.295, p<,05 was observed between football coaches' communication skills and life satisfaction levels. These results show us that the higher communication skills of coaches decrease their occupational burnout levels but increase their life satisfaction levels. Özet Bu çalışmanın amacı, futbol antrenörlerinin tükenmişlik düzeyleri, iletişim becerileri ve yaşam tatminleri arasındaki ilişkinin incelenmesidir. Muğla ilinde 2012 Temmuz ayında düzenlenen Futbol Antrenör Gelişim Seminerine katılan 120 antrenöre, anket uygulaması yapılmış, hatalı 40 anket çıkartılarak, 80 anket değerlendirmeye alınmıştır. Sonuç olarak; futbol antrenörlerinin iletişim becerileri ile duygusal tükenmişlik düzeyleri arasında negatif (r=-.293, p<,05 bir ilişki saptanmıştır. Antrenörlerin yaşam tatmin düzeyleri ile yaş değişkeni arasında pozitif (r=.280, p<,05, eğitim durumları arasında ise negatif bir ilişki (r=-.275, p<,05 bulunmuştur. Ayrıca futbol antrenörlerinin iletişim becerileri ile yaşam tatmin düzeyleri arasında negatif (r=-.295, p<,05 bir ilişki vardır. Bu sonuçlar bize, antrenörlerin iletişim becerilerinin yükseldikçe mesleki t

  7. Ankara’daki Üniversite ve Halk Kütüphanelerinde Çalışan Kütüphanecilerin İş Doyumları Üzerine Bir Araştırma =A Research on Job Satisfaction of Librarians Employed at University and Public Libraries in Ankara

    Directory of Open Access Journals (Sweden)

    Yılmaz, Bülent

    2010-04-01

    Full Text Available Kişinin yaptığı işten hoşnut olması anlamına gelen iş doyumu genelde ve kütüphanecilik alanı açısından işteki başarı ve verimliliği etkileyen, aynı zamanda insanın yaşamdan doyum almasına önemli katkıda bulunan çok boyutlu bir olgudur. Bu çalışmada, öncelikle iş doyumu hakkında genel ve kütüphanecilik temelli kuramsal bilgi verilmiştir. Daha sonra yapılan araştırma sonuçları değerlendirilmiş ve konu ile ilgili öneriler sunulmuştur. Bu çalışmaya konu olan araştırma Ankara'da bulunan üniversite ve halk kütüphanelerinde çalışan kütüphaneciler üzerinde gerçekleştirilmiştir. Ankara'daki on üniversite kütüphanesinden 69, altı halk kütüphanesinden 20 olmak üzere toplam 89 kütüphaneciye Mayıs 2009 tarihinde anket uygulanmıştır. Anket için Spector'un "İş Doyumu Ölçeği" temel alınmıştır. Araştırmada elde edilen sonuçlara göre, üniversite ve halk kütüphanelerinde çalışan kütüphanecilerin genelde iş doyumları arasında istatistiksel olarak anlamlı bir fark bulunmadığı, ancak, bazı unsurlar arasında anlamlı farklılıklar olduğu saptanmıştır.Job satisfaction, which signifi es an individual's happiness in his/her occupation, is a multidimensional case that aff ects success and productivity at work, in general terms and in the fi eld of librarianship. This article off ers primarily general information on job satisfaction and librarianship-based theoretical information. It also evaluates the conclusions of a questionnaire and off ers related suggestions. The research focused on the librarians employed at university and public libraries in Ankara. A questionnaire was administered in May 2009 to 69 university librarians and 20 others employed by public libraries, bringing the total to 89 professional men and women. The questionnaire has been based on the Spector's "Job Satisfaction Survey". According to the conclusions that may be derived from the research

  8. Bilgi Liderliğinin Verimlilik Üzerine Etkisi: Sağlık Sektöründe Bir Araştırma / The Effect of Knowledge Leadership on Productivity: A Research on Health Sector

    Directory of Open Access Journals (Sweden)

    Karahan, Atilla

    2009-04-01

    Full Text Available Bilgiyi sistematik bir biçimde yöneten ve katma değer elde eden işletmeler rekabet avantajı sağlayacak ve rekabeti karşılayacaktır. İşletmelerde bilginin elde edilmesi, saklanması, paylaşılması ve kullanılmasına, diğer bir deyişle bilgi yönetiminin etkin ve başarılı bir şekilde gerçekleşmesine etki eden faktörler bulunmaktadır. Araştırmanın temel amacı küresel ekonomide bilgi liderliğinin verimlilik üzerine etkisinin araştırılmasıdır. Çalışma, bilgiyi üretme ve kullanmada en başarılı örnekleri sergileyen araştırma hastanelerinde görev yapan yöneticiler üzerinde gerçekleştirilmiştir. Araştırmanın kapsamına Afyon Kocatepe Üniversitesi, Isparta Süleyman Demirel Üniversitesi, Konya Selçuk Üniversitesi, Kütahya Dumlupınar Üniversitesi ve Eskişehir Osmangazi Üniversitesi hastanelerinde görev yapan başhekimler, başhekim yardımcıları, hastane müdürleri, müdür yardımcıları, başhemşireler ve başhemşire yardımcılarından oluşan toplam 120 yönetici dahil edilmiştir. Bu araştırmanın sonucunda ise bilgi liderliğinin verimlilik üzerine olumlu etkisi olduğu sonucuna varılmıştır.Organisations, which manage knowledge systematically, would have competitive advantage. In this respect, some factors like collecting, saving, using and sharing knowledge should be subjected under consideration. The main objective of the present research is to examine the knowledge leadership in a global economy. Empirical study was performed on managers of Research Hospitals, who were known with their success in producing and using knowledge. Included in the empirical investigation were hospital managers, managerial assistants, head nurses and assistant head nurses of Afyon Kocatepe University, Isparta Süleyman Demirel University, Konya Selçuk University, Kütahya Dumlupınar University and Eskişehir Osmangazi University hospitals. The results revealed a positive effect of knowledge

  9. The study of the relationships between social appearance anxiety, self-esteem and loneliness level among university studentsÜniversite öğrencilerinin sosyal görünüş kaygıları ile benlik saygıları ve yalnızlık düzeyleri arasındaki ilişkinin incelenmesi

    Directory of Open Access Journals (Sweden)

    Mehmet Kılıç

    2016-09-01

      Özet Bu araştırmanın temel amacı, üniversite öğrencilerinin sosyal görünüş kaygıları ile benlik saygıları ve yalnızlık düzeyleri arasındaki ilişkinin incelenmesidir. Tarama modelindeki bu araştırmaya 2013-2014 Eğitim Öğretim Yılında Karadeniz Teknik Üniversitesi İktisadi ve İdari Bilimler Fakültesi, Mühendislik Fakültesi, Eğitim Fakültesi, Sağlık Bilimleri Fakültesi, Hukuk Fakültesi, Fen Fakültesi, Edebiyat Fakültesi Tıp Fakültesi, İlahiyat Fakültesi, İletişim Fakültesi, Diş Hekimliği Fakültesi, Eczacılık Fakültesi, Mimarlık Fakültesi, Orman Fakültesi ve Turizm Otelcilik Meslek Yüksek Okulu’ nda öğrenim gören toplam  1386 (629 kadın, 756 erkek öğrenci katılmıştır. Araştırmada veri toplama araçları olarak; “Kişisel Bilgi Formu”,  “Sosyal Görünüş Kaygısı Ölçeği”, “Rosenberg Benlik Saygısı Ölçeği” ve “Ucla Yalnızlık Ölçeği” kullanılmıştır. Verilerin analizinde SSPS 16.0 paket programından yararlanılmıştır.Verilerin analizinde betimsel istatistiklerden; yüzde, frekans,aritmetik ortalama ve standart sapma teknikleri kullanılmıştır. Ayrıca araştırmada bağımsız gruplar için t-Testi, bağımsız gruplar için tek yönlü varyans analizi (ANOVAve farkın kaynağına bakmak amacıyla da Tukey testine başvurulmuştur. Bağımlı değişkenler arasındaki ilişkileri belirlemek için korelasyon ve regresyon analizleri yapılmıştır. Araştırmada üniversite öğrencilerinin, sosyal görünüş kaygısı ölçeğinden elde ettikleri ortalamalar açısından sosyal görünüş kaygı düzeylerinin düşük olduğu bulunmuştur. Bunun yanında öğrencilerin sosyal görünüş kaygısı puanlarıyla; cinsiyet, aile yapısı, hayatının önemli bir kısmını geçirdiği yer, kilosundan memnun olma durumu, boyundan memnun olma durumu ve marka giyinme değişkenleri açısından yapılan karşılaştırmalarda ise anlamlı bir farkl

  10. Vanilla spice and investigation on areas of usageVanilya baharatı ve kullanım alanları üzerine bir araştırma

    Directory of Open Access Journals (Sweden)

    Bilal Deveci

    2016-12-01

    ım alanlarına ve vanilinin nasıl üretildiğine, vanilya ve vanilin arasındaki farklılığa yer verilecektir.

  11. Reproductive biology of the spider crab Leucippa pentagona (Decapoda: Epialtidae, in Bustamante Bay, Argentina Biología reproductiva del cangrejo araña Leucippa pentagona (Decapoda: Epialtidae, en Bahía Bustamante, Argentina

    Directory of Open Access Journals (Sweden)

    Martín Varisco

    2011-11-01

    Full Text Available Sizes at maturity, breeding period, and fecundity of the spider crab Leucippa pentagona in Bustamante Bay, Argentina (45.11°S, 66.56°W were analyzed. Specimens were collected monthly between May 2006 and February 2008. The size at morphometric maturity was determined based on relative changes in cheliped length for males and abdomen width for females. The presence of spermatophores in the male deferent ducts and of eggs in the female abdomens were the criteria used to determine physiological maturity. The temporal variation of the proportion of ovigerous females was analyzed. Oocyte sizes in ovigerous females were measured to evaluate the occurrence of multiple spawnings. In males, the sizes at morphometric and physiological maturity were 28.05 and 16.7 mm carapace length (CL, respectively. In females, the size at morphological maturity was 18.5 mm CL, whereas size at physiological maturity was 18.25 CL. Ovigerous females were found between June and February in both years. Ovigerous females were found to have oocytes with advanced vitellogenesis. Fecundity was similar in both years and varied between 645 and 7114 eggs. The extended breeding period and the presence of vitellogenic oocytes in ovigerous females suggest the occurrence of two or more spawnings per reproductive season. Finally, the distribution range of this species in the Atlantic Ocean was extended from 43.3° to 45.11°S.Se analizó las tallas de madurez sexual, el periodo de ocurrencia de hembras ovígeras y la fecundidad del cangrejo araña Leucippapentagona en Bahía Bustamante, Argentina (45,11°S, 66,56°W. Los ejemplares fueron muestreados mensualmente entre mayo 2006 y febrero 2008. La determinación de la talla de madurez morfométrica se basó en cambios relativos en la longitud del quelípedo y el ancho del abdomen para machos y hembras, respectivamente. La presencia de espermatóforos en el conducto deferente de los machos y de huevos en las hembras fueron los

  12. Accounting education and quality dimensions: A field research in TurkeyMuhasebe eğitimi ve kalite boyutları: Türkiye alan araştırması

    Directory of Open Access Journals (Sweden)

    Mehmet Yücenurşen

    2016-01-01

    ı, Türkiye’de yapılmış muhasebe eğitimi ve kalite kapsamında süreli yayınlar incelenerek muhasebe eğitim kalitesi üzerine literatüre katkı sağlanmasıdır. Türkiye’de yapılmış çalışmalarda öğrencilerin ve işletmelerin muhasebe eğitiminden beklentileri, üniversitelerin sahip olduğu öğretim üyesi, ders süreleri, ve fiziki imkanlar gibi kalite boyutlarının araştırıldığı görülmektedir.

  13. Bazı Yoğurt Sularının Farklı Sürelerdeki Antibakteriyal Aktiviteleri Üzerine Bir Araştırma

    Directory of Open Access Journals (Sweden)

    Ayşegül DURSUN

    2014-07-01

    Full Text Available Bu çalışmanın materyalini, Diyarbakır yöresinden sağlanan inek, keçi, koyun sütlerinin fermente edilmesiyle elde edilen yoğurt ile üretici bir firmanın hazır inek yoğurdunun suyu oluşturmaktadır. Deney grupları; Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa türlerinin elde edilen yoğurt sularına, kontrol grupları ise aynı bakteri türlerinin serum fizyolojik (SF içine ekilmesiyle oluşturulmuştur. Daha sonra deney ve kontrol gruplarındaki kültürler inkübatörde 37ï‚°C sıcaklıkta 24, 48, 72 saat süreyle inkübasyona bırakılmıştır. Ekim işlemi; deney ve kontrol gruplarından 0.1 cc alınarak içinde Agar besiyeri bulunan petri kutularına inoküle edilmesiyle yapılmıştır. Bu kültürler inkübatörde 37ï‚°C sıcaklıkta 24 saat süreyle inkübasyona bırakılmıştır. Sürenin sonunda, petri kutularındaki BA yüzeyinde bakteri koloni sayımı yapılmıştır. Deneysel çalışma 3 kez tekrarlanmıştır. Aynı işlemler 48, 72 saat süreyle inkübasyona bırakılan deney ve kontrol grupları için de yapılmıştır. Çalışmanın sonunda veriler, Student's t testi ile analiz edilmiştir. Elde edilen sonuçlarda, deney ve kontrol gruplarındaki bakteri koloni sayıları arasında büyük fark olduğu tespit edilmiştir. 24, 48, 72 saat süre sonunda kontrol gruplarındaki bakteri koloni sayısı çok yoğun olmasına rağmen, deney gruplarında bu sayının bakteri türüne, yoğurt çeşidine, zamana bağlı olarak değiştiği ve kontrol grubuna göre oldukça büyük oranda düşüş gösterdiği saptanmıştır.

  14. A research for visitors’ perceptions towards Pamukkale destination Ziyaretçilerin Pamukkale destinasyonunu algılamalarına yönelik bir araştırma

    Directory of Open Access Journals (Sweden)

    Serkan Bertan

    2013-07-01

    çilerdir. Ziyaretçilerin Pamukkale destinasyonunu yönelik tutumlarına; ülke, cinsiyet, öğrenim ve gelir durumlarının etkisinin araştırılması için t testi ve tek yönlü varyans analizi uygulanmıştır. Ziyaretçilerin ülke, cinsiyet, öğrenim ve gelir durumlarının, Pamukkale destinasyonuna yönelik algılamalarına etkisi incelendiğinde anlamlı farklılıklar ortaya çıkmıştır. Varyans analizinde sonucunun anlamlı çıkmasından dolayı Scheffe testi uygulanmıştır.

  15. Türkiye’de İç Denetim Mesleğinin Güncel Durumu: Bir Araştırma(The Current Position of Internal Auditing Profession in Turkey: A Research

    Directory of Open Access Journals (Sweden)

    Burak ÖZDOĞAN

    2016-04-01

    ortaya koymak ve gelişim ihtiyacı duyulan alanların tespitini sağlamak amaçlanmıştır. Çalışmada yer alan araştırma bulguları ve değerlendirmeleri ışığında sonuç olarak, işletmenin en önemli güvencelerinden olan iç denetim birimlerinin, işletme içerisinde doğru şekilde yapılandırılması, en az varlığı kadar büyük önem arz ettiği ortaya konmuştur.

  16. Ortaçağ ve Sonrası Muş İli Yüzey Araştırması -2010- Varto / A Survey on Medieval and Later Periods of Varto, Muş (2010

    Directory of Open Access Journals (Sweden)

    Bülent Nuri KILAVUZ

    2013-03-01

    Full Text Available Abstract The research carried out with the permission of General Directorate of Monuments and Museums, Culture and Tourism Ministry of Turkish Republic, between 9 to 26 July 2010 in the center of Muş, Varto, Korkut and Hasköy towns. In the research, cultural assets which were three churches, a store, a fountain, monument consisting of six houses and thirteen cemeteries were identified and examined. The houses in the center of Muş are generally made of mud brick with two-storey. The houses at Minaret, the castle and the River districts are disappearing rapidly, because they remain in the center of the city. They indicate the characteristic feature of Muş especially with front-side arrangements. The tombstones found in Varto district are noteworthy with human and animal figure forms. The tombstones identified in villages of Hasköy and Korkut towns stand with the sword and shield motifs. Memorial monuments and tombstones vary in terms of materials, forms and style according to region and periods. The works identified usually belong to the Ottoman (XVI-XIX centuries period. The searched cemeteries were found to be different from each other. It is important to demonstrate the richness of the geography of Muş. Some of the motifs over the Headstones indicate differences, especially compared to other provinces in the region. Historical graves in the cemetery are rapidly destroyed by natural and human factors gradually. In addition, all new burials in cemeteries today increase the destruction. Özet T.C. Kültür ve Turizm Bakanlığı, Kültür Varlıkları ve Müzeler Genel Müdürlüğü’nün izinleri ile 09-26 Temmuz 2010 tarihleri arasında Muş merkez, Varto, Korkut ve Hasköy ilçelerinin köylerinde gerçekleştirilmiştir. Araştırmada; üç kilise, bir depo, bir çeşme, altı evden oluşan anıt eser ve on üç mezarlıktan oluşan kültür varlıkları tespit edilerek incelenmiştir. Muş merkezdeki evler genellikle kerpiç malzemeli

  17. Ortaçağ ve Sonrası Muş İli Yüzey Araştırması -2009- Bulanık

    Directory of Open Access Journals (Sweden)

    Bülent Nuri KILAVUZ

    2013-03-01

    Full Text Available AbstractThe research was carried out with the permission of General Directorate of Monuments and Museums, Culture and Tourism Ministry of Turkish Republic, between 20 July to 3 August 2009 at Bulanık town of Muş Province and dependent villages.Some monumental works consisting three churches, an inn, a cupola, four open tombs, a tomb, a bridge and three houses, also cultural assets composed of eighteen cemeteries in Bulanık town were identified.Memorial monuments and tombstones vary in terms of materials, forms and style according to region and periods. Architectural monuments and gravestones in close Settlements; Günbatmaz, Mollakent and Esenlik villages which seem to have cultural interactions are similar to each other and the ones in Ahlat which is not far from the region.The oldest cultural assets belong to Islamic period were found in this region. A small number of identified works belong to Seljuk period and afterwards (XI-XV. Century, and most of the others usually belong to the Ottoman (XVI-XIX centuries period.The searched cemeteries were found to be different from each other. It is important to demonstrate the richness of the geography of Muş. Some of the motifs over the Headstones indicate differences, especially compared to other provinces in the region.Historical graves in the cemetery are rapidly destroyed by natural and human factors actually. In addition, all new burials in cemeteries today increase the destruction.ÖzetT.C. Kültür ve Turizm Bakanlığı, Kültür Varlıkları ve Müzeler Genel Müdürlüğü’nün izinleri ile 20 Temmuz- 03 Ağustos 2009 tarihleri arasında Muş ilinin Bulanık ilçesinde ve köylerinde gerçekleştirilmiştir.Araştırmada; üç kilise, bir han, bir kümbet, dört açık türbe, bir türbe, bir köprü ve üç evden oluşan anıtsal eserler; Bulanık ilçesinin köylerinde on sekiz mezarlıktan oluşan kültür varlıkları tespit edilerek incelenmiştir.Anıt eserler ve mezar ta

  18. A draft de novo genome assembly for the northern bobwhite (Colinus virginianus reveals evidence for a rapid decline in effective population size beginning in the Late Pleistocene.

    Directory of Open Access Journals (Sweden)

    Yvette A Halley

    Full Text Available Wild populations of northern bobwhites (Colinus virginianus; hereafter bobwhite have declined across nearly all of their U.S. range, and despite their importance as an experimental wildlife model for ecotoxicology studies, no bobwhite draft genome assembly currently exists. Herein, we present a bobwhite draft de novo genome assembly with annotation, comparative analyses including genome-wide analyses of divergence with the chicken (Gallus gallus and zebra finch (Taeniopygia guttata genomes, and coalescent modeling to reconstruct the demographic history of the bobwhite for comparison to other birds currently in decline (i.e., scarlet macaw; Ara macao. More than 90% of the assembled bobwhite genome was captured within 14,000 unique genes and proteins. Bobwhite analyses of divergence with the chicken and zebra finch genomes revealed many extremely conserved gene sequences, and evidence for lineage-specific divergence of noncoding regions. Coalescent models for reconstructing the demographic history of the bobwhite and the scarlet macaw provided evidence for population bottlenecks which were temporally coincident with human colonization of the New World, the late Pleistocene collapse of the megafauna, and the last glacial maximum. Demographic trends predicted for the bobwhite and the scarlet macaw also were concordant with how opposing natural selection strategies (i.e., skewness in the r-/K-selection continuum would be expected to shape genome diversity and the effective population sizes in these species, which is directly relevant to future conservation efforts.

  19. A draft de novo genome assembly for the northern bobwhite (Colinus virginianus) reveals evidence for a rapid decline in effective population size beginning in the Late Pleistocene.

    Science.gov (United States)

    Halley, Yvette A; Dowd, Scot E; Decker, Jared E; Seabury, Paul M; Bhattarai, Eric; Johnson, Charles D; Rollins, Dale; Tizard, Ian R; Brightsmith, Donald J; Peterson, Markus J; Taylor, Jeremy F; Seabury, Christopher M

    2014-01-01

    Wild populations of northern bobwhites (Colinus virginianus; hereafter bobwhite) have declined across nearly all of their U.S. range, and despite their importance as an experimental wildlife model for ecotoxicology studies, no bobwhite draft genome assembly currently exists. Herein, we present a bobwhite draft de novo genome assembly with annotation, comparative analyses including genome-wide analyses of divergence with the chicken (Gallus gallus) and zebra finch (Taeniopygia guttata) genomes, and coalescent modeling to reconstruct the demographic history of the bobwhite for comparison to other birds currently in decline (i.e., scarlet macaw; Ara macao). More than 90% of the assembled bobwhite genome was captured within 14,000 unique genes and proteins. Bobwhite analyses of divergence with the chicken and zebra finch genomes revealed many extremely conserved gene sequences, and evidence for lineage-specific divergence of noncoding regions. Coalescent models for reconstructing the demographic history of the bobwhite and the scarlet macaw provided evidence for population bottlenecks which were temporally coincident with human colonization of the New World, the late Pleistocene collapse of the megafauna, and the last glacial maximum. Demographic trends predicted for the bobwhite and the scarlet macaw also were concordant with how opposing natural selection strategies (i.e., skewness in the r-/K-selection continuum) would be expected to shape genome diversity and the effective population sizes in these species, which is directly relevant to future conservation efforts.

  20. Lise Öğrencilerinin Edebiyatla İlgili Algılarının Metaforlar Yoluyla Belirlenmesi Üzerine Bir Araştırma A Research On Determining High School Students’ Perceptions About Literature Through Metaphors

    Directory of Open Access Journals (Sweden)

    Salim PİLAV

    2013-09-01

    Full Text Available In this research, which aims at determining students’ perceptionsabout concept of literature through metaphors, a qualitative researchmethod, phenomenology (design is adopted. The study group iscomposed of 276 students from 4 different high schools of the Ministryof National Education. Of the students who participated in the studyand who were able to produce valid metaphors, 97 students are from9th grade; 58 from 10th grade; 73 from 11th grade and 58 from 12thgrade. Data is collected by a form containing a single question preparedwith ‘fill-in-the-blank’ method. The students are asked to develop ametaphor related to literature and to write its comparative aspect aswell. The students take the literature class and they face the concept ofliterature for the first time in high school. This research is made inorder to determine these student’s perception of the concept ofliterature and in order to make diagnosis about education of literacytaking into account this perception. Descriptive analysis techniques areused in anayzing the data. Metaphors developed by students aredetermined seperately at class level and then they are classified undersix headings in accordance with their comparative qualities. Thereseach reveals that students are making comparisons while developingmetaphors and they can think creatively. When six groups of metaphorsare considered, it can be concluded that students are aware of theliterature’s relation with humanbeing and daily life. As studentsdeveloped metaphors relating to the importance and the necessity ofliterature, it is thought that literature classes reached their goals. Thestudy is also important as it sheds light on the sources of negativemetaphors for literature. Ortaöğretim öğrencilerinin edebiyat kavramıyla ilgili algılarının metaforlar yoluyla belirlenmeye çalışıldığı bu araştırmada nitel araştırma yöntemlerinden olgubilim (Fenomenoloji deseni kullanılmıştır. Çalışma grubunu K

  1. Comunidades de arañas (Arachnida:Araneae asociadas al dosel de bosques de tierra firme e igapó en la Estación Biológica Mosiro Itájura (Caparú, Vaupés, Amazonia Colombiana

    Directory of Open Access Journals (Sweden)

    Flórez Daza Eduardo

    2004-12-01

    Full Text Available El dosel de los bosques es estructuralmente complejo, por lo cual actúa como reservorio de una gran diversidad de artrópodos que pueden ser residentes permanentes y por lo tanto explotan los microhábitats disponibles (follaje, acumulaciones de liquen y hojarasca, epífitas, corteza, lianas y bejucos asociados, como sitio de vivienda o  alimentación. Se considera que los artrópodos de dosel conforman un componente importante en la cadena trófica de este estrato como fuente de alimentación para otros animales o como controladores naturales de insectos y demás artrópodos. En Colombia no se han realizado estudios encaminados al conocimiento de la araneofauna de dosel; por lo tanto el presente estudio constituye un primer aporte en este campo. Se efectuaron muestreos entre marzo y abril de 2003, a final de la época seca, en bosques de tierra firme e Igapó (inundable en la zona del bajo río Apaporis, Vaupés, Amazonia colombiana. Se seleccionaron 10 árboles en cada bosque a los cuales se accedió usando la técnica de cuerda simple. Las colectas se realizaron entre 18 y 23 m de altura en cada árbol, empleando los siguientes métodos: barrido con red entomológica (50 pases dobles, colecta de epífitas y revisión manual de hojarasca. Se colectó un total de 1.333 arañas, de las cuales se logró determinar hasta familia y separar a morfoespecie el 64%, que equivale a 850 individuos
    de 182 morfoespecies y 40 familias. En el bosque de Igapó se colectaron 560 arañas y se separó a nivel de morfoespecie 393 individuos, pertenecientes a 164 morforespecies y 29 familias. De las 773 arañas colectadas en el bosque de tierra firme se separaron 457 arañas pertenecientes a 162 morfoespecies y 32 familias. En el bosque de Igapó las familias con mayor número de especies resultaron ser Araneidae, Salticidae y Anyphaenidae, en tanto que las más abundantes fueron Salticidae, Pisauridae y Araneidae. En el bosque de tierra firme las familias

  2. THE FLOOD PULSE AND ITS RELATIONSHIP WITH REPRODUCTION OF Hoplias malabaricus (BLOCH, 1794 (CHARACIFORMES, ERYTHRINIDAE IN THE CAIÇARA BAYS SYSTEM, NORTH PANTANAL, MATO GROSSO STATE, BRAZIL = A RELAÇÃO DO PULSO DE INUNDAÇÃO COM A REPRODUÇÃO DE Hoplias malabaricus (BLOCH, 1794 (CHARACIFORMES, ERYTHRINIDAE NO SISTEMA DAS BAÍAS CAIÇARA DO PANTANAL NORTE, ESTADO DE MATO GROSSO, BRASIL

    Directory of Open Access Journals (Sweden)

    Jéssica Rodrigues de Oliveira

    2014-10-01

    Full Text Available This work had as objective to study the reproductive aspect of Hoplias malabaricus (traíra in the Caiçara bays system, North Pantanal, state of Mato Grosso; establishing the seasonal standards of spawning of this fish species. Were captured 380 individuals with a mesh made by plastic material, net of drag and casting nets of different sizes and heights between September of 2005 to September of 2007, in the different seasonal period. After collected, they was fixed in formalin 4% for 72 hours and conserved in alcohol solution with 70% and verified its length standard (Ls, total weight (Wt, sexed and analyzed the stadium of gonadal maturation. The beginning of the reproduction occurred in the flood period, extending until the full period, time with bigger volume of water in the studied environment. The months with higher abundance had coincided with dry period, having also had predominance of adult and male individuals. Fishes of various lengths had been captured, indicating that the marginal lake of the main channel of the river presents conditions favorable to the development of this species. = Este trabalho teve como objetivo estudar a reprodução de Hoplias malabaricus (traíra em um sistema de baías do Pantanal Norte, em Mato Grosso que mantêm conexão com o rio Paraguai durante os períodos hidrológicos distintos deste complexo, descrevendo os padrões sazonais de desova da espécie. Foram estudados 380 indivíduos capturados com tela de material plástico, rede de arrasto e tarrafas de diferentes malhagens e alturas entre setembro de 2005 a setembro de 2007, englobando os diferentes períodos sazonais pantaneiros. O material biológico foi fixado em formalina a 4% por 72 horas e conservado em solução de álcool 70% e verificado seu comprimento padrão (Ls, peso total (Wt e determinado o sexo e estádio de maturação gonadal. O início da reprodução ocorreu no período de enchente, se estendendo até o período de cheia,

  3. Las arañas del bosque mesófilo de montaña de la Reserva de la Biosfera Volcán Tacaná, Chiapas, México Spiders of the cloud montane forest of the Biosphere Reserve Volcán Tacaná, Chiapas, Mexico

    Directory of Open Access Journals (Sweden)

    Guillermo Ibarra-Núñez

    2011-12-01

    Full Text Available Se realizó un estudio para conocer la fauna de arañas del suelo y del sotobosque en 2 sitios de bosque mesófilo de montaña de la Reserva de la Biosfera Volcán Tacaná. Las arañas del suelo se recolectaron con trampas de caída y mediante el procesamiento de hojarasca en embudos de Berlese; para las arañas del sotobosque se realizaron recolectas directas, por golpeo (red y manta y con trampas de refugio. En total se registraron 32 familias, 99 géneros y 151 especies, que representan 32.5% de la araneofauna del estado de Chiapas. Se encontraron 7 registros nuevos de géneros y 12 de especies para México, así como de 6 géneros y 9 especies para el estado de Chiapas. Las familias con mayor riqueza fueron Theridiidae, Linyphiidae, Anyphaenidae, Araneidae y Salticidae. En el suelo se registraron 75 especies, 57 géneros y 26 familias mientras que en el sotobosque se encontraron 112 especies, 74 géneros y 22 familias; 36 especies fueron comunes a los 2 estratos, en tanto que 39 fueron exclusivas del suelo y 76 del sotobosque. La complementariedad entre los 2 estratos fue de 76.2%.A spider inventory from forest floor and understory in 2 sites of the cloud montane forest of the Biosphere Reserve Volcán Tacaná, Chiapas was undertaken. Soil spiders were collected using pitfall traps and processing litter in Berlese funnels; understory spiders were captured by hand collecting, sweeping, beating, and with shelter traps. Collected specimens correspond to 32 families, 99 genera and 151 species, which represent 32.5% of the spiders recorded for the state of Chiapas. There are 7 new records of genera and 12 of species for Mexico and 6 genera and 9 species for Chiapas. The families with most species richness were Theridiidae, Linyphiidae, Anyphaenidae, Araneidae and Salticidae. In the forest floor were recorded 75 species, 57 genera and 26 families and in the understory 112 species, 74 genera and 22 families. Both strata shared 36 species, and 39

  4. Complete Genome Sequence of Avian Bornavirus Genotype 1 from a Macaw with Proventricular Dilatation Disease

    OpenAIRE

    Mirhosseini, Negin; Gray, Patricia L.; Tizard, Ian; Payne, Susan

    2012-01-01

    Avian bornaviruses (ABV) were first detected and described in 2008. They are the etiologic agents of proventricular dilatation disease (PDD), a frequently fatal neurologic disease of captive parrots. Seven ABV genogroups have been identified worldwide from a variety of sources, and that number may increase as surveillance for novel bornaviruses continues. Here, we report the first complete sequence of a genogroup 1 avian bornavirus (ABV1).

  5. Complete genome sequence of avian bornavirus genotype 1 from a Macaw with proventricular dilatation disease.

    Science.gov (United States)

    Mirhosseini, Negin; Gray, Patricia L; Tizard, Ian; Payne, Susan

    2012-06-01

    Avian bornaviruses (ABV) were first detected and described in 2008. They are the etiologic agents of proventricular dilatation disease (PDD), a frequently fatal neurologic disease of captive parrots. Seven ABV genogroups have been identified worldwide from a variety of sources, and that number may increase as surveillance for novel bornaviruses continues. Here, we report the first complete sequence of a genogroup 1 avian bornavirus (ABV1).

  6. 78 FR 61208 - Endangered and Threatened Wildlife and Plants; Listing the Blue-throated Macaw

    Science.gov (United States)

    2013-10-03

    ... their ecological suitability to the microclimate. Motac is not only vital to the life history of blue... Bolivia in the 1600s. After the Second World War, cattle ranching and the associated burning of pastures... of food or parental neglect, exposure to cold temperatures, or flooding (Kyle 2007a, pp. 1-10). If...

  7. 77 FR 40221 - Endangered and Threatened Wildlife and Plants; Listing the Scarlet Macaw

    Science.gov (United States)

    2012-07-06

    ... Sistema Nacional de Areas de Conservacion 2012, unpaginated), and Panama (Fundaci n de Parques Nacionales... Special Concern in Honduras) (Secretaria de Recursos Naturales y Ambiente. 2008, p. 62), and Nicaragua's... (Nicaragua Ministerio del Ambiente y Los Recursos Naturales 2010, entire). In South America, the species...

  8. 77 FR 39965 - Endangered and Threatened Wildlife and Plants; Listing the Hyacinth Macaw

    Science.gov (United States)

    2012-07-06

    ... nongovernmental organizations, Rede Cerrado, has been established to promote local sustainable-use practices for natural resources (Klink and Machado 2005, p. 710). Rede Cerrado provided the Brazilian Ministry of the...

  9. Non-invasive genetic sampling for molecular sexing and microsatellite genotyping of hyacinth macaw (Anodorhynchus hyacinthinus

    Directory of Open Access Journals (Sweden)

    Flavia T. Presti

    2013-01-01

    Full Text Available Molted feather sampling is a useful tool for genetic analyses of endangered species, but it is often very laborious due to the low quality and quantity of the DNA obtained. In the present study we show the parts of feathers that resulted in better yield of DNA. In descending order these were: blood clot outside the umbilicus, umbilicus (without blood clot, tip, inner membrane, and small calamus. Compared to DNA extracted from blood samples, DNA extracted from feathers produced microsatellite alleles of poorer quality and had to be processed immediately after extraction. As expected due to the level of DNA degradation, molecular sexing protocols that result in shorter PCR products were more efficient.

  10. 77 FR 40171 - Endangered and Threatened Wildlife and Plants; Two Foreign Macaw Species

    Science.gov (United States)

    2012-07-06

    ... development (University of Texas, Brownsville, unpaginated). Activities conducted by the research station have... southward into Ecuador, Peru, Colombia, Venezuela, Bolivia, and the southern tip of Argentina (see Figure 1... Colombia was estimated to be 156 individuals (Fl rez and Sierra 2004, p. 3). This species may have occurred...

  11. Non-invasive genetic sampling for molecular sexing and microsatellite genotyping of hyacinth macaw (Anodorhynchus hyacinthinus)

    Science.gov (United States)

    Presti, Flavia T.; Meyer, Janaína; Antas, Paulo T.Z.; Guedes, Neiva M.R.; Miyaki, Cristina Y.

    2013-01-01

    Molted feather sampling is a useful tool for genetic analyses of endangered species, but it is often very laborious due to the low quality and quantity of the DNA obtained. In the present study we show the parts of feathers that resulted in better yield of DNA. In descending order these were: blood clot outside the umbilicus, umbilicus (without blood clot), tip, inner membrane, and small calamus. Compared to DNA extracted from blood samples, DNA extracted from feathers produced microsatellite alleles of poorer quality and had to be processed immediately after extraction. As expected due to the level of DNA degradation, molecular sexing protocols that result in shorter PCR products were more efficient. PMID:23569419

  12. Investigating the relationship between gender inequality and happiness of OECD countries using classical and robust canonical correlation analysesOECD ülkelerinde cinsiyet eşitsizliği ve mutluluk arasındaki ilişkinin klasik ve dayanıklı kanonik korelasyon analizleri ile incelenmesi

    Directory of Open Access Journals (Sweden)

    Selay Giray

    2016-12-01

    Full Text Available Gender equality corrresponds to equal rights and opportunities of individuals based on their gender. However, gender inequality refers mostly  lack of women’s  economic and political empowerment. Socially constructed different gender roles can be observed mostly in daily life.  Gender inequality  which can be perceived as an important social dynamic affects the happiness of individuals and hence  happiness of society. In this study, the relationship between the sub indicators of Gender Inequality Index and Happines Index for OECD countries have been investigated using canonical correlation analysis based on both pearson correlation matrix and  MM  covariance estimator. As is known, canonical correlation analysis explores the relationships between two multivariate sets of variables. Findings indicate that there is a strong correlation between Gender Inequality Index and Happines Index.   Özet Toplumsal cinsiyet eşitliği kadınların ve erkeklerin, kız ve erkek çocuklarının eşit hak, sorumluluk ve fırsatlardan yararlanma hakkına sahip oldukları anlamına gelmektedir. Daha çok kadına yönelik cinsiyet eşitsizliği olarak yansıyan cinsiyet eşitsizliği ise kaynaklara ve fırsatlara ulaşmada eşitsizlik, iş hayatı ve siyasette kadının sınırlı olarak yer alması şeklinde tanımlanabilir. Cinsiyet eşitsizliğinin gündelik yaşamdaki yansıması en iyi çiftler arasındaki ilişkilerde ve toplumsal kültürel yapıda gözlenebilmektedir. Toplumsal dinamik olarak önemli bir faktör olan cinsiyet eşitsizliği doğrudan bireylerin mutluluğu ve dolayısıyla toplumun mutluluğu üzerinde oldukça etkilidir. Bu çalışmada OECD ülkelerine ait Cinsiyet eşitsizliği indeksi bileşenleri  ve mutluluk indeksi bileşenleri arasındaki ilişki Pearson korelasyon matrisi ve dayanıklı (robust MM kovaryans tahmincisine dayalı kanonik korelasyon analizleri ile incelenmiştir. Bilindiği gibi kanonik korelasyon analizi, de

  13. Üniversite öğrencilerinin teknolojiye hazır bulunuşluk düzeyi ve kişilik özellikleri arasındaki ilişki: Erciyes Üniversitesi örneği

    OpenAIRE

    Sönmez, Ebru; Akgül, Hanife

    2015-01-01

    Bu çalışmanın amacı, üniversite öğrencilerinin teknolojiye hazır bulunuşluk düzeyi ile kişilik tipleri arasındaki ilişkiyi incelemektir. Öğrencilerinin teknolojiye hazır bulunuşluk düzeylerini ölçmek üzere, Parasuraman tarafından geliştirilen Teknolojiye Hazır Bulunuşluk İndeksini (TRI) temel alarak Yen’in uyarlamış olduğu 18 ifadeden oluşan TRI kullanılmıştır. Bu indekste teknolojiye hazır bulunuşluk düzeyleri “yenilikçilik”, “güvensizlik”, “huzursuzluk” ve “iyimserlik” ol...

  14. Prospecção de locos microssatélite e análise da variabilidade genética em uma população do Mato Grosso do Sul, visando a conservação da Arara Vermelha, Ara chloroptera (Psittacidae, Aves)

    OpenAIRE

    Julia Mara Martins

    2007-01-01

    Certas espécies de psitacídeos possuem uma série de características normalmente associadas ao risco de extinção, como grande tamanho corporal, pequena diversidade de itens alimentares, alta especificidade de hábitat, pequena taxa de crescimento populacional e distribuição geográfica restrita, como o gênero Ara. Estudos genéticos são importantes ferramentas para auxiliar a conservação de espécies sob risco de extinção. Um dos marcadores moleculares mais utilizados é o microssatélite, o qual...

  15. Yenidoğan Buzağılarda ve Annelerinde Infectıous Bovıne Rhınotracheıtıs (Ibr) ve Bovıne Vıral Dıarrhoea (Bvd) Enfeksiyonlarının Serolojik Olarak Araştırılması

    OpenAIRE

    2008-01-01

    Bu çalısmada, Afyonkarahisar ilinde Bovine Viral Diarrhoea Virus (BVDV) ve Bovine Herpesvirus type 1 (BHV1) enfeksiyonlarının insidenslerinin arastırılması amaçlandı. Toplam 162 inek ve prekostral yavruları örneklendi, organize sürülerden örneklenen ineklerin sayısı 155 iken aile tipi isletmelerden 7 inek kullanıldı. Toplam 324 serum Virus Nötralizasyon test ile kontrol edildi. Organize sürülerdeki sığırlarda BVDV spesifik antikor oranlarının %77.7 ile %100 arasında değiºtiğ...

  16. An empirical research about the effect of intercultural communication on education processKültürlerarası iletişimin eğitim sürecine etkisine yönelik ampirik bir araştırma

    Directory of Open Access Journals (Sweden)

    Deniz Keba Ekinci

    2016-02-01

    , multicultural education in higher education institutions by enabling the formation of cultural environment they are to create awareness have been observed. In addition, this educational environments, with the acquisitions of intercultural communication and competence, bias by getting rid of the molds, are expected to develop awareness of the coexistence of different cultures.   Özet Kültürlerarası iletişim, farklı kültürlere mensup insanlar arasında iletişim, kültürel farklılıkların ortaya çıkması ve korunması, yabancının algılanması gibi konuları inceleyen disiplinler arası bir bilim dalıdır. Küreselleşme ile birlikte; ülkeler arasındaki sınırların yapaylaştığı, kültürel farklılıkların ortaya çıktığı, kültürlerarası iletişim ve etkileşimin arttığı görülmektedir. Böyle bir ortamda; çokkültürlülük, kültürlerarası iletişim süreci ve kültürlerarası iletişim yeterliliği olguları önem kazanmaktadır. Çokkültürlülük, çoğulcu toplumlarda farklı kültürlerin varlığını ifade etmektedir. Kültürlerarası iletişim, farklı kültürler arasındaki iletişim ve etkileşimi göstermektedir. Kültürlerarası yeterlilik ise, farklılıkların kabulü ve birlikte yaşama isteği ile gerçekleşmektedir. Bu bağlamda; ülkeler arasındaki birliktelikler ve kültürel anlaşmalar sonucunda, Yüksek Öğretim Kurumlar’ı arasında, çeşitli uluslararası öğrenci programları gerçekleşmektedir. Bu eğitim programlarının görüldüğü, Yüksek Öğretim Kurumları’ndaki uygulamaları çalışmanın temelini oluşturmaktadır. Farklı progra