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Atle Selberg

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education. Atle Selberg. Articles written in Resonance – Journal of Science Education. Volume 1 Issue 12 December 1996 pp 81-91 Reflections. Reflections Around the Ramanujan Centenary-A page from Ramanujan's Notebook · Atle Selberg · More Details Fulltext PDF ...
Functional analysis of AtlA, the major N-acetylglucosaminidase of Enterococcus faecalis.

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Eckert, Catherine; Lecerf, Maxime; Dubost, Lionel; Arthur, Michel; Mesnage, Stéphane

2006-12-01

The major peptidoglycan hydrolase of Enterococcus faecalis, AtlA, has been identified, but its enzyme activity remains unknown. We have used tandem mass spectrometry analysis of peptidoglycan hydrolysis products obtained using the purified protein to show that AtlA is an N-acetylglucosaminidase. To gain insight into the regulation of its enzyme activity, the three domains of AtlA were purified alone or in combination following expression of truncated forms of the atlA gene in Escherichia coli or partial digestion of AtlA by proteinase K. The central domain of AtlA was catalytically active, but its activity was more than two orders of magnitude lower than that of the complete protein. Partial proteolysis of AtlA was detected in vivo: zymograms of E. faecalis extracts revealed two catalytically active protein bands of 62 and 72 kDa that were both absent in extracts from an atlA null mutant. Limited digestion of AtlA by proteinase K in vitro suggested that the proteolytic cleavage of AtlA in E. faecalis extracts corresponds to the truncation of the N-terminal domain, which is rich in threonine and glutamic acid residues. We show that the truncation of the N-terminal domain from recombinant AtlA has no impact on enzyme activity. The C-terminal domain of the protein, which contains six LysM modules bound to highly purified peptidoglycan, was required for optimal enzyme activity. These data indicate that AtlA is not produced as a proenzyme and that control of the AtlA glucosaminidase activity is likely to occur at the level of LysM-mediated binding to peptidoglycan.
Functional Analysis of AtlA, the Major N-Acetylglucosaminidase of Enterococcus faecalis▿

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Eckert, Catherine; Lecerf, Maxime; Dubost, Lionel; Arthur, Michel; Mesnage, Stéphane

2006-01-01

The major peptidoglycan hydrolase of Enterococcus faecalis, AtlA, has been identified, but its enzyme activity remains unknown. We have used tandem mass spectrometry analysis of peptidoglycan hydrolysis products obtained using the purified protein to show that AtlA is an N-acetylglucosaminidase. To gain insight into the regulation of its enzyme activity, the three domains of AtlA were purified alone or in combination following expression of truncated forms of the atlA gene in Escherichia coli or partial digestion of AtlA by proteinase K. The central domain of AtlA was catalytically active, but its activity was more than two orders of magnitude lower than that of the complete protein. Partial proteolysis of AtlA was detected in vivo: zymograms of E. faecalis extracts revealed two catalytically active protein bands of 62 and 72 kDa that were both absent in extracts from an atlA null mutant. Limited digestion of AtlA by proteinase K in vitro suggested that the proteolytic cleavage of AtlA in E. faecalis extracts corresponds to the truncation of the N-terminal domain, which is rich in threonine and glutamic acid residues. We show that the truncation of the N-terminal domain from recombinant AtlA has no impact on enzyme activity. The C-terminal domain of the protein, which contains six LysM modules bound to highly purified peptidoglycan, was required for optimal enzyme activity. These data indicate that AtlA is not produced as a proenzyme and that control of the AtlA glucosaminidase activity is likely to occur at the level of LysM-mediated binding to peptidoglycan. PMID:17041059
Functional analysis of AtlA, the major N-acetylglucosaminidase of Enterococcus faecalis.

OpenAIRE

Eckert , Catherine; Lecerf , Maxime; Dubost , Lionel; Arthur , Michel; Mesnage , Stéphane

2006-01-01

International audience; The major peptidoglycan hydrolase of Enterococcus faecalis, AtlA, has been identified, but its enzyme activity remains unknown. We have used tandem mass spectrometry analysis of peptidoglycan hydrolysis products obtained using the purified protein to show that AtlA is an N-acetylglucosaminidase. To gain insight into the regulation of its enzyme activity, the three domains of AtlA were purified alone or in combination following expression of truncated forms of the atlA ...
Defense AT&L (Volume 35, Number 3, May-June 2006)

Science.gov (United States)

2006-06-01

purchasing, and will also result in better stew - ardship of taxpayer dollars. 29 Defense AT&L: May-June 2006 The authors welcome comments and questions. They...Quality Individual or Team Award • Naval Air Depot Cherry Point Environmental Manage- ment System Team (Edward Childs, Wesley Lamb , James Byrd, Billy...program, congratulated the winners in a naval message saying, “I am proud that you are working hard to achieve superior environmental stew - ardship while
Membrane-localized ubiquitin ligase ATL15 functions in sugar-responsive growth regulation in Arabidopsis.

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Aoyama, Shoki; Terada, Saki; Sanagi, Miho; Hasegawa, Yoko; Lu, Yu; Morita, Yoshie; Chiba, Yukako; Sato, Takeo; Yamaguchi, Junji

2017-09-09

Ubiquitin ligases play important roles in regulating various cellular processes by modulating the protein function of specific ubiquitination targets. The Arabidopsis Tóxicos en Levadura (ATL) family is a group of plant-specific RING-type ubiquitin ligases that localize to membranes via their N-terminal transmembrane-like domains. To date, 91 ATL isoforms have been identified in the Arabidopsis genome, with several ATLs reported to be involved in regulating plant responses to environmental stresses. However, the functions of most ATLs remain unknown. This study, involving transcriptome database analysis, identifies ATL15 as a sugar responsive ATL gene in Arabidopsis. ATL15 expression was rapidly down-regulated in the presence of sugar. The ATL15 protein showed ubiquitin ligase activity in vitro and localized to plasma membrane and endomembrane compartments. Further genetic analyses demonstrated that the atl15 knockout mutants are insensitive to high glucose concentrations, whereas ATL15 overexpression depresses plant growth. In addition, endogenous glucose and starch amounts were reciprocally affected in the atl15 knockout mutants and the ATL15 overexpressors. These results suggest that ATL15 protein plays a significant role as a membrane-localized ubiquitin ligase that regulates sugar-responsive plant growth in Arabidopsis. Copyright © 2017 Elsevier Inc. All rights reserved.
Processing of the major autolysin of E. faecalis, AtlA, by the zinc-metalloprotease, GelE, impacts AtlA septal localization and cell separation.

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Emily K Stinemetz

Full Text Available AtlA is the major peptidoglycan hydrolase of Enterococcus faecalis involved in cell division and cellular autolysis. The secreted zinc metalloprotease, gelatinase (GelE, has been identified as an important regulator of cellular function through post-translational modification of protein substrates. AtlA is a known target of GelE, and their interplay has been proposed to regulate AtlA function. To study the protease-mediated post-translational modification of AtlA, monoclonal antibodies were developed as research tools. Flow cytometry and Western blot analysis suggests that in the presence of GelE, surface-bound AtlA exists primarily as a N-terminally truncated form whereas in the absence of GelE, the N-terminal domain of AtlA is retained. We identified the primary GelE cleavage site occurring near the transition between the T/E rich Domain I and catalytic region, Domain II via N-terminal sequencing. Truncation of AtlA had no effect on the peptidoglycan hydrolysis activity of AtlA. However, we observed that N-terminal cleavage was required for efficient AtlA-mediated cell division while unprocessed AtlA was unable to resolve dividing cells into individual units. Furthermore, we observed that the processed AtlA has the propensity to localize to the cell septum on wild-type cells whereas unprocessed AtlA in the ΔgelE strain were dispersed over the cell surface. Combined, these results suggest that AtlA septum localization and subsequent cell separation can be modulated by a single GelE-mediated N-terminal cleavage event, providing new insights into the post-translation modification of AtlA and the mechanisms governing chaining and cell separation.
Processing of the major autolysin of E. faecalis, AtlA, by the zinc-metalloprotease, GelE, impacts AtlA septal localization and cell separation.

Science.gov (United States)

Stinemetz, Emily K; Gao, Peng; Pinkston, Kenneth L; Montealegre, Maria Camila; Murray, Barbara E; Harvey, Barrett R

2017-01-01

AtlA is the major peptidoglycan hydrolase of Enterococcus faecalis involved in cell division and cellular autolysis. The secreted zinc metalloprotease, gelatinase (GelE), has been identified as an important regulator of cellular function through post-translational modification of protein substrates. AtlA is a known target of GelE, and their interplay has been proposed to regulate AtlA function. To study the protease-mediated post-translational modification of AtlA, monoclonal antibodies were developed as research tools. Flow cytometry and Western blot analysis suggests that in the presence of GelE, surface-bound AtlA exists primarily as a N-terminally truncated form whereas in the absence of GelE, the N-terminal domain of AtlA is retained. We identified the primary GelE cleavage site occurring near the transition between the T/E rich Domain I and catalytic region, Domain II via N-terminal sequencing. Truncation of AtlA had no effect on the peptidoglycan hydrolysis activity of AtlA. However, we observed that N-terminal cleavage was required for efficient AtlA-mediated cell division while unprocessed AtlA was unable to resolve dividing cells into individual units. Furthermore, we observed that the processed AtlA has the propensity to localize to the cell septum on wild-type cells whereas unprocessed AtlA in the ΔgelE strain were dispersed over the cell surface. Combined, these results suggest that AtlA septum localization and subsequent cell separation can be modulated by a single GelE-mediated N-terminal cleavage event, providing new insights into the post-translation modification of AtlA and the mechanisms governing chaining and cell separation.
ATL with strategy contexts: Expressiveness and Model Checking.

OpenAIRE

Da Costa , Arnaud; Laroussinie , François; Markey , Nicolas

2010-01-01

We study the alternating-time temporal logics ATL and ATL* extended with strategy contexts: these make agents commit to their strategies during the evaluation of formulas, contrary to plain ATL and ATL* where strategy quantifiers reset previously selected strategies. We illustrate the important expressive power of strategy contexts by proving that they make the extended logics, namely ATLsc and ATLsc*, equally expressive: any formula in ATLsc* can be translated into an equivalent, linear-...
Identification and characterization of an autolysin gene, atlA, from Streptococcus criceti.

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Tamura, Haruki; Yamada, Arisa; Kato, Hirohisa

2012-10-01

AtlA of Streptococcus mutans is a major autolysin and belongs to glycoside hydrolase family 25 with cellosyl of Streptomyces coelicolor. The autolysin gene (atlA) encoding AtlA was identified from S. criceti. AtlA of S. criceti comprises the signal sequence in the N-terminus, the putative cell-wall-binding domain in the middle, and the catalytic domain in the C-terminus. Homology modeling analysis of the catalytic domain of AtlA showed the resemblance of the spatial arrangement of five amino acids around the predicted catalytic cavity to that of cellosyl. Recombinant AtlA and its four point mutants, D655A, D747A, W831A, and D849A, were evaluated on zymogram of S. criceti cells. Lytic activity was destroyed in the mutants D655A and D747A and diminished in the mutants W831A and D849A. These results suggest that Asp655 and Asp747 residues are critical for lytic activity and Trp831 and Asp849 residues are also associated with enzymatic activity.
Enterococcus faecium biofilm formation: identification of major autolysin AtlAEfm, associated Acm surface localization, and AtlAEfm-independent extracellular DNA Release.

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Paganelli, Fernanda L; Willems, Rob J L; Jansen, Pamela; Hendrickx, Antoni; Zhang, Xinglin; Bonten, Marc J M; Leavis, Helen L

2013-04-16

Enterococcus faecium is an important multidrug-resistant nosocomial pathogen causing biofilm-mediated infections in patients with medical devices. Insight into E. faecium biofilm pathogenesis is pivotal for the development of new strategies to prevent and treat these infections. In several bacteria, a major autolysin is essential for extracellular DNA (eDNA) release in the biofilm matrix, contributing to biofilm attachment and stability. In this study, we identified and functionally characterized the major autolysin of E. faecium E1162 by a bioinformatic genome screen followed by insertional gene disruption of six putative autolysin genes. Insertional inactivation of locus tag EfmE1162_2692 resulted in resistance to lysis, reduced eDNA release, deficient cell attachment, decreased biofilm, decreased cell wall hydrolysis, and significant chaining compared to that of the wild type. Therefore, locus tag EfmE1162_2692 was considered the major autolysin in E. faecium and renamed atlAEfm. In addition, AtlAEfm was implicated in cell surface exposure of Acm, a virulence factor in E. faecium, and thereby facilitates binding to collagen types I and IV. This is a novel feature of enterococcal autolysins not described previously. Furthermore, we identified (and localized) autolysin-independent DNA release in E. faecium that contributes to cell-cell interactions in the atlAEfm mutant and is important for cell separation. In conclusion, AtlAEfm is the major autolysin in E. faecium and contributes to biofilm stability and Acm localization, making AtlAEfm a promising target for treatment of E. faecium biofilm-mediated infections. IMPORTANCE Nosocomial infections caused by Enterococcus faecium have rapidly increased, and treatment options have become more limited. This is due not only to increasing resistance to antibiotics but also to biofilm-associated infections. DNA is released in biofilm matrix via cell lysis, caused by autolysin, and acts as a matrix stabilizer. In this study
Processing of the major autolysin of E. faecalis, AtlA, by the zinc-metalloprotease, GelE, impacts AtlA septal localization and cell separation

OpenAIRE

Stinemetz, Emily K.; Gao, Peng; Pinkston, Kenneth L.; Montealegre, Maria Camila; Murray, Barbara E.; Harvey, Barrett R.

2017-01-01

AtlA is the major peptidoglycan hydrolase of Enterococcus faecalis involved in cell division and cellular autolysis. The secreted zinc metalloprotease, gelatinase (GelE), has been identified as an important regulator of cellular function through post-translational modification of protein substrates. AtlA is a known target of GelE, and their interplay has been proposed to regulate AtlA function. To study the protease-mediated post-translational modification of AtlA, monoclonal antibodies were ...
AtlA functions as a peptidoglycan lytic transglycosylase in the Neisseria gonorrhoeae type IV secretion system.

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Kohler, Petra L; Hamilton, Holly L; Cloud-Hansen, Karen; Dillard, Joseph P

2007-08-01

Type IV secretion systems require peptidoglycan lytic transglycosylases for efficient secretion, but the function of these enzymes is not clear. The type IV secretion system gene cluster of Neisseria gonorrhoeae encodes two peptidoglycan transglycosylase homologues. One, LtgX, is similar to peptidoglycan transglycosylases from other type IV secretion systems. The other, AtlA, is similar to endolysins from bacteriophages and is not similar to any described type IV secretion component. We characterized the enzymatic function of AtlA in order to examine its role in the type IV secretion system. Purified AtlA was found to degrade macromolecular peptidoglycan and to produce 1,6-anhydro peptidoglycan monomers, characteristic of lytic transglycosylase activity. We found that AtlA can functionally replace the lambda endolysin to lyse Escherichia coli. In contrast, a sensitive measure of lysis demonstrated that AtlA does not lyse gonococci expressing it or gonococci cocultured with an AtlA-expressing strain. The gonococcal type IV secretion system secretes DNA during growth. A deletion of ltgX or a substitution in the putative active site of AtlA severely decreased DNA secretion. These results indicate that AtlA and LtgX are actively involved in type IV secretion and that AtlA is not involved in lysis of gonococci to release DNA. This is the first demonstration that a type IV secretion peptidoglycanase has lytic transglycosylase activity. These data show that AtlA plays a role in type IV secretion of DNA that requires peptidoglycan breakdown without cell lysis.
Strategic Planning through Model Checking of ATL Formulae

NARCIS (Netherlands)

Jamroga, W.J.; Rutkowski, L.; Siekmann, J.; Tadeusiewicz, R.; Zadeh, L.A.

2004-01-01

Model checking of temporal logic has already been proposed for automatic planning. In this paper, we introduce a simple adaptation of the ATL model checking algorithm that returns a strategy to achieve given goal. We point out that the algorithm generalizes minimaxing, and that ATL models generalize
Impact of peptidoglycan O-acetylation on autolytic activities of the Enterococcus faecalis N-acetylglucosaminidase AtlA and N-acetylmuramidase AtlB.

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Emirian, Aurélie; Fromentin, Sophie; Eckert, Catherine; Chau, Françoise; Dubost, Lionel; Delepierre, Muriel; Gutmann, Laurent; Arthur, Michel; Mesnage, Stéphane

2009-09-17

Autolysins are potentially lethal enzymes that partially hydrolyze peptidoglycan for incorporation of new precursors and septum cleavage after cell division. Here, we explored the impact of peptidoglycan O-acetylation on the enzymatic activities of Enterococcus faecalis major autolysins, the N-acetylglucosaminidase AtlA and the N-acetylmuramidase AtlB. We constructed isogenic strains with various O-acetylation levels and used them as substrates to assay E. faecalis autolysin activities. Peptidoglycan O-acetylation had a marginal inhibitory impact on the activities of these enzymes. In contrast, removal of cell wall glycopolymers increased the AtlB activity (37-fold), suggesting that these polymers negatively control the activity of this enzyme.
Effects of oxygen on biofilm formation and the AtlA autolysin of Streptococcus mutans.

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Ahn, Sang-Joon; Burne, Robert A

2007-09-01

The Streptococcus mutans atlA gene encodes an autolysin required for biofilm maturation and biogenesis of a normal cell surface. We found that the capacity to form biofilms by S. mutans, one of the principal causative agents of dental caries, was dramatically impaired by growth of the organism in an aerated environment and that cells exposed to oxygen displayed marked changes in surface protein profiles. Inactivation of the atlA gene alleviated repression of biofilm formation in the presence of oxygen. Also, the formation of long chains, a characteristic of AtlA-deficient strains, was less evident in cells grown with aeration. The SMu0629 gene is immediately upstream of atlA and encodes a product that contains a C-X-X-C motif, a characteristic of thiol-disulfide oxidoreductases. Inactivation of SMu0629 significantly reduced the levels of AtlA protein and led to resistance to autolysis. The SMu0629 mutant also displayed an enhanced capacity to form biofilms in the presence of oxygen compared to that of the parental strain. The expression of SMu0629 was shown to be under the control of the VicRK two-component system, which influences oxidative stress tolerance in S. mutans. Disruption of vicK also led to inhibition of processing of AtlA, and the mutant was hyperresistant to autolysis. When grown under aerobic conditions, the vicK mutant also showed significantly increased biofilm formation compared to strain UA159. This study illustrates the central role of AtlA and VicK in orchestrating growth on surfaces and envelope biogenesis in response to redox conditions.
The adhesive properties of the Staphylococcus lugdunensis multifunctional autolysin AtlL and its role in biofilm formation and internalization.

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Hussain, Muzaffar; Steinbacher, Tim; Peters, Georg; Heilmann, Christine; Becker, Karsten

2015-01-01

Although it belongs to the group of coagulase-negative staphylococci, Staphylococcus lugdunensis has been known to cause aggressive courses of native and prosthetic valve infective endocarditis with high mortality similar to Staphylococcus aureus. In contrast to S. aureus, only little is known about the equipment of S. lugdunensis with virulence factors including adhesins and their role in mediating attachment to extracellular matrix and plasma proteins and host cells. In this study, we show that the multifunctional autolysin/adhesin AtlL of S. lugdunensis binds to the extracellular matrix and plasma proteins fibronectin, fibrinogen, and vitronectin as well as to human EA.hy926 endothelial cells. Furthermore, we demonstrate that AtlL also plays an important role in the internalization of S. lugdunensis by eukaryotic cells: The atlL-deficient mutant Mut17 adheres to and becomes internalized by eukaryotic cells to a lesser extent than the isogenic wild-type strain Sl253 and the complemented mutant Mut17 (pCUatlL) shows an increased internalization level in comparison to Mut17. Thus, surface localized AtlL that exhibits a broad binding spectrum also mediates the internalization of S. lugdunensis by eukaryotic cells. We therefore propose an internalization pathway for S. lugdunensis, in which AtlL plays a major role. Investigating the role of AtlL in biofilm formation of S. lugdunensis, Mut17 shows a significantly reduced ability for biofilm formation, which is restored in the complemented mutant. Thus, our data provide evidence for a significant role for AtlL in adherence and internalization processes as well as in biofilm formation of S. lugdunensis. Copyright © 2014 Elsevier GmbH. All rights reserved.
Refining and Delegating Strategic Ability in ATL

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Dimitar P. Guelev

2014-04-01

Full Text Available We propose extending Alternating-time Temporal Logic (ATL by an operator F to express that agent i can distribute its powers to a set of sub-agents G in a way which satisfies ATL condition f on the strategic ability of the coalitions they may form, possibly together with others agents. We prove the decidability of model-checking of formulas whose subformulas with this operator as the main connective have the form ... f, with no further occurrences of this operator in f.
The atlA operon of Streptococcus mutans: role in autolysin maturation and cell surface biogenesis.

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Ahn, Sang-Joon; Burne, Robert A

2006-10-01

The Smu0630 protein (AtlA) was recently shown to be involved in cell separation, biofilm formation, and autolysis. Here, transcriptional studies revealed that atlA is part of a multigene operon under the control of at least three promoters. The morphology and biofilm-forming capacity of a nonpolar altA mutant could be restored to that of the wild-type strain by adding purified AtlA protein to the medium. A series of truncated derivatives of AtlA revealed that full activity required the C terminus and repeat regions. AtlA was cell associated and readily extractable from with sodium dodecyl sulfate. Of particular interest, the surface protein profile of AtlA-deficient strains was dramatically altered compared to the wild-type strain, as was the nature of the association of the multifunctional adhesin P1 with the cell wall. In addition, AtlA-deficient strains failed to develop competence as effectively as the parental strain. Mutation of thmA, which can be cotranscribed with atlA and encodes a putative pore-forming protein, resulted in a phenotype very similar to that of the AtlA-deficient strain. ThmA was also shown to be required for efficient processing of AtlA to its mature form, and treatment of the thmA mutant strain with full-length AtlA protein did not restore normal cell separation and biofilm formation. The effects of mutating other genes in the operon on cell division, biofilm formation, or AtlA biogenesis were not as profound. This study reveals that AtlA is a surface-associated protein that plays a critical role in the network connecting cell surface biogenesis, biofilm formation, genetic competence, and autolysis.
Satisfiability of ATL with strategy contexts

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François Laroussinie

2013-07-01

Full Text Available Various extensions of the temporal logic ATL have recently been introduced to express rich properties of multi-agent systems. Among these, ATLsc extends ATL with strategy contexts, while Strategy Logic has first-order quantification over strategies. There is a price to pay for the rich expressiveness of these logics: model-checking is non-elementary, and satisfiability is undecidable. We prove in this paper that satisfiability is decidable in several special cases. The most important one is when restricting to turn-based games. We prove that decidability also holds for concurrent games if the number of moves available to the agents is bounded. Finally, we prove that restricting strategy quantification to memoryless strategies brings back undecidability.

Arab Teens Lifestyle Study (ATLS): objectives, design, methodology and implications.

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Al-Hazzaa, Hazzaa M; Musaiger, Abdulrahman O

2011-01-01

There is a lack of comparable data on physical activity, sedentary behavior, and dietary habits among Arab adolescents, which limits our understanding and interpretation of the relationship between obesity and lifestyle parameters. Therefore, we initiated the Arab Teens Lifestyle Study (ATLS). The ATLS is a multicenter collaborative project for assessing lifestyle habits of Arab adolescents. The objectives of the ATLS project were to investigate the prevalence rates for overweight and obesity, physical activity, sedentary activity and dietary habits among Arab adolescents, and to examine the interrelationships between these lifestyle variables. This paper reports on the objectives, design, methodology, and implications of the ATLS. The ATLS is a school-based cross-sectional study involving 9182 randomly selected secondary-school students (14-19 years) from major Arab cities, using a multistage stratified sampling technique. The participating Arab cities included Riyadh, Jeddah, and Al-Khobar (Saudi Arabia), Bahrain, Dubai (United Arab Emirates), Kuwait, Amman (Jordan), Mosel (Iraq), Muscat (Oman), Tunisia (Tunisia) and Kenitra (Morocco). Measured variables included anthropometric measurements, physical activity, sedentary behavior, sleep duration, and dietary habits. The ATLS project will provide a unique opportunity to collect and analyze important lifestyle information from Arab adolescents using standardized procedures. This is the first time a collaborative Arab project will simultaneously assess broad lifestyle variables in a large sample of adolescents from numerous urbanized Arab regions. This joint research project will supply us with comprehensive and recent data on physical activity/inactivity and eating habits of Arab adolescents relative to obesity. Such invaluable lifestyle-related data are crucial for developing public health policies and regional strategies for health promotion and disease prevention.
Arab Teens Lifestyle Study (ATLS: objectives, design, methodology and implications

Directory of Open Access Journals (Sweden)

Musaiger AO; ATLS Research Group

2011-12-01

Full Text Available Hazzaa M Al-Hazzaa1,2, Abdulrahman O Musaiger3, ATLS Research Group1Exercise Physiology Laboratory, Department of Physical Education and Movement Sciences, College of Education, King Saud University, 2Scientific Board, Obesity Research Chair, King Saud University, Riyadh, Saudi Arabia; 3Arab Center for Nutrition, Manama, Bahrain, and Nutrition and Health Studies Unit, Deanship of Scientific Research, University of Bahrain, BahrainBackground: There is a lack of comparable data on physical activity, sedentary behavior, and dietary habits among Arab adolescents, which limits our understanding and interpretation of the relationship between obesity and lifestyle parameters. Therefore, we initiated the Arab Teens Lifestyle Study (ATLS. The ATLS is a multicenter collaborative project for assessing lifestyle habits of Arab adolescents. The objectives of the ATLS project were to investigate the prevalence rates for overweight and obesity, physical activity, sedentary activity and dietary habits among Arab adolescents, and to examine the interrelationships between these lifestyle variables. This paper reports on the objectives, design, methodology, and implications of the ATLS.Design/Methods: The ATLS is a school-based cross-sectional study involving 9182 randomly selected secondary-school students (14–19 years from major Arab cities, using a multistage stratified sampling technique. The participating Arab cities included Riyadh, Jeddah, and Al-Khobar (Saudi Arabia, Bahrain, Dubai (United Arab Emirates, Kuwait, Amman (Jordan, Mosel (Iraq, Muscat (Oman, Tunisia (Tunisia and Kenitra (Morocco. Measured variables included anthropometric measurements, physical activity, sedentary behavior, sleep duration, and dietary habits.Discussion: The ATLS project will provide a unique opportunity to collect and analyze important lifestyle information from Arab adolescents using standardized procedures. This is the first time a collaborative Arab project will
Defense AT&L (Volume 36, Number 3, May-June 2007)

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2007-06-01

recruit from the heritage community; their recruits are known by their MOS [Military Occupational Specialty] “09 Limas ”—es- sentially interpreters...Defense AT&L: May-June 2007 Acquisition & Logistics Excellence Defense AT&L: May-June 2007 86 Acquisition & Logistics Excellence at Huntington Beach , Calif...programs in endangered species protection, historic preservation, waste reduction, environmental cleanup, and pollution prevention. Installation
VCP and ATL1 regulate endoplasmic reticulum and protein synthesis for dendritic spine formation.

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Shih, Yu-Tzu; Hsueh, Yi-Ping

2016-03-17

Imbalanced protein homeostasis, such as excessive protein synthesis and protein aggregation, is a pathogenic hallmark of a range of neurological disorders. Here, using expression of mutant proteins, a knockdown approach and disease mutation knockin mice, we show that VCP (valosin-containing protein), together with its cofactor P47 and the endoplasmic reticulum (ER) morphology regulator ATL1 (Atlastin-1), regulates tubular ER formation and influences the efficiency of protein synthesis to control dendritic spine formation in neurons. Strengthening the significance of protein synthesis in dendritic spinogenesis, the translation blocker cyclohexamide and the mTOR inhibitor rapamycin reduce dendritic spine density, while a leucine supplement that increases protein synthesis ameliorates the dendritic spine defects caused by Vcp and Atl1 deficiencies. Because VCP and ATL1 are the causative genes of several neurodegenerative and neurodevelopmental disorders, we suggest that impaired ER formation and inefficient protein synthesis are significant in the pathogenesis of multiple neurological disorders.
The atlA Operon of Streptococcus mutans: Role in Autolysin Maturation and Cell Surface Biogenesis

OpenAIRE

Ahn, Sang-Joon; Burne, Robert A.

2006-01-01

The Smu0630 protein (AtlA) was recently shown to be involved in cell separation, biofilm formation, and autolysis. Here, transcriptional studies revealed that atlA is part of a multigene operon under the control of at least three promoters. The morphology and biofilm-forming capacity of a nonpolar altA mutant could be restored to that of the wild-type strain by adding purified AtlA protein to the medium. A series of truncated derivatives of AtlA revealed that full activity required the C term...
AtlA Mediates Extracellular DNA Release, Which Contributes to Streptococcus mutans Biofilm Formation in an Experimental Rat Model of Infective Endocarditis.

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Jung, Chiau-Jing; Hsu, Ron-Bin; Shun, Chia-Tung; Hsu, Chih-Chieh; Chia, Jean-San

2017-09-01

Host factors, such as platelets, have been shown to enhance biofilm formation by oral commensal streptococci, inducing infective endocarditis (IE), but how bacterial components contribute to biofilm formation in vivo is still not clear. We demonstrated previously that an isogenic mutant strain of Streptococcus mutans deficient in autolysin AtlA (Δ atlA ) showed a reduced ability to cause vegetation in a rat model of bacterial endocarditis. However, the role of AtlA in bacterial biofilm formation is unclear. In this study, confocal laser scanning microscopy analysis showed that extracellular DNA (eDNA) was embedded in S. mutans GS5 floes during biofilm formation on damaged heart valves, but an Δ atlA strain could not form bacterial aggregates. Semiquantification of eDNA by PCR with bacterial 16S rRNA primers demonstrated that the Δ atlA mutant strain produced dramatically less eDNA than the wild type. Similar results were observed with in vitro biofilm models. The addition of polyanethol sulfonate, a chemical lysis inhibitor, revealed that eDNA release mediated by bacterial cell lysis is required for biofilm initiation and maturation in the wild-type strain. Supplementation of cultures with calcium ions reduced wild-type growth but increased eDNA release and biofilm mass. The effect of calcium ions on biofilm formation was abolished in Δ atlA cultures and by the addition of polyanethol sulfonate. The VicK sensor, but not CiaH, was found to be required for the induction of eDNA release or the stimulation of biofilm formation by calcium ions. These data suggest that calcium ion-regulated AtlA maturation mediates the release of eDNA by S. mutans , which contributes to biofilm formation in infective endocarditis. Copyright © 2017 American Society for Microbiology.
Comparison of HTLV-I Proviral Load in Adult T Cell Leukemia/Lymphoma (ATL), HTLV-I-Associated Myelopathy (HAM-TSP) and Healthy Carriers.

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Akbarin, Mohammad Mehdi; Rahimi, Hossein; Hassannia, Tahereh; Shoja Razavi, Ghazaleh; Sabet, Faezeh; Shirdel, Abbas

2013-03-01

Human T Lymphocyte Virus Type one (HTLV-I) is a retrovirus that infects about 10-20 million people worldwide. Khorasan province in Iran is an endemic area. The majority of HTLV-I-infected individuals sustain healthy carriers but small proportion of infected population developed two progressive diseases: HAM/TSP and ATL. The proviral load could be a virological marker for disease monitoring, therefore in the present study HTLV-I proviral load has been evaluated in ATL and compared to HAM/TSP and healthy carriers. In this case series study, 47 HTLV-I infected individuals including 13 ATL, 23 HAM/TSP and 11 asymptomatic subjects were studied. Peripheral blood mononuclear cells (PBMCs) were investigated for presence of HTLV-I DNA provirus by PCR using LTR and Tax fragments. Then in infected subjects, HTLV-I proviral load was measured using real time PCR TaqMan method. The average age of patients in ATL was 52±8, in HAM/TSP 45.52±15.17 and in carrier's 38.65±14.9 years which differences were not statistically significant. The analysis of data showed a significant difference in mean WBC among study groups (ATL vs HAM/TSP and carriers P=0.0001). Moreover, mean HTLV-I proviral load was 11967.2 ± 5078, 409 ± 71.3 and 373.6 ± 143.3 in ATL, HAM/TSP and Healthy Carriers, respectively. The highest HTLV-I proviral load was measured in ATL group that had a significant correlation with WBC count (R=0.495, P=0.001). The proviral load variations between study groups was strongly significant (ATL vs carrier P=0.0001; ATL vs HAM/TSP P= 0.0001 and HAM/TSP vs carriers P< 0.05). Conclusion : The present study demonstrated that HTLV-I proviral load was higher in ATL group in comparison with HAM/TSP and healthy carriers. Therefore, HTLV-I proviral load is a prognostic factor for development of HTLV-I associated diseases and can be used as a monitoring marker for the efficiency of therapeutic regime.
Avifauna em fragmentos da Mata Atlântica

OpenAIRE

Dário,Fábio Rossano; De Vincenzo,Maria Cristina Veiga; Almeida,Álvaro Fernando de

2002-01-01

O estudo foi realizado em área localizada na Serra do Mar, no domínio da Mata Atlântica, na formação florestal denominada Floresta Ombrófila Densa Atlântica, no Município de Paraibuna, Estado de São Paulo, Brasil (localizado entre 23º31? e 23º33? de latitude Sul, 45º39? e 45º42? de longitude Oeste, e entre 944 a 1,136m de altitude). Foram estudados três fragmentos de vegetação natural de 47, 26 e 4 hectares, e uma área de plantio de eucaliptos adjacente, sendo a vegetação dos fragmentos compo...
Analyzing Flowgraphs with ATL

Directory of Open Access Journals (Sweden)

Valerio Cosentino

2013-11-01

Full Text Available This paper presents a solution to the Flowgraphs case study for the Transformation Tool Contest 2013 (TTC 2013. Starting from Java source code, we execute a chain of model transformations to derive a simplified model of the program, its control flow graph and its data flow graph. Finally we develop a model transformation that validates the program flow by comparing it with a set of flow specifications written in a domain specific language. The proposed solution has been implemented using ATL.
Antibodies to adult T-cell leukemia-virus-associated antigen (ATLA) in sera from patients with ATL and controls in Japan: a nation-wide sero-epidemiologic study.

Science.gov (United States)

Hinuma, Y; Komoda, H; Chosa, T; Kondo, T; Kohakura, M; Takenaka, T; Kikuchi, M; Ichimaru, M; Yunoki, K; Sato, I; Matsuo, R; Takiuchi, Y; Uchino, H; Hanaoka, M

1982-06-15

A nation-wide sero-epidemiologic survey of adult T-cell leukemia virus (ATLV), detected es anti-ATLA (ATLV-associated antigen), was made in Japan. Sera from adult donors in 15 different locations were screened for anti-ATLA. High incidences (6 to 37%) of antibody-positive donors were found in seven regions, one in northern Japan, and the others in southwestern regions. These areas are ATLV-endemic areas corresponding to ATL-endemic areas. Examination of sera from healthy donors aged 6 to 80 years in ATL-endemic areas showed an age-dependent increase of seropositive donors with a maximum of about 30% at 40 years of age. Anti-ATLA was found in all but two of 142 patients with ATL. Anti-ATLA-positive patients with ATL were mainly found in ATLV-endemic areas, and only a few in ATL-nonendemic areas. Six patients with cutaneous T-cell lymphoma in ATLV-nonendemic areas gave a negative reaction for anti-ATLA. The geometric mean titer of anti-ATLA of patients with ATL was higher than that of healthy donors.
Contribution of the Staphylococcus aureus Atl AM and GL murein hydrolase activities in cell division, autolysis, and biofilm formation.

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Jeffrey L Bose

Full Text Available The most prominent murein hydrolase of Staphylococcus aureus, AtlA, is a bifunctional enzyme that undergoes proteolytic cleavage to yield two catalytically active proteins, an amidase (AM and a glucosaminidase (GL. Although the bifunctional nature of AtlA has long been recognized, most studies have focused on the combined functions of this protein in cell wall metabolism and biofilm development. In this study, we generated mutant derivatives of the clinical S. aureus isolate, UAMS-1, in which one or both of the AM and GL domains of AtlA have been deleted. Examination of these strains revealed that each mutant exhibited growth rates comparable to the parental strain, but showed clumping phenotypes and lysis profiles that were distinct from the parental strain and each other, suggesting distinct roles in cell wall metabolism. Given the known function of autolysis in the release of genomic DNA for use as a biofilm matrix molecule, we also tested the mutants in biofilm assays and found both AM and GL necessary for biofilm development. Furthermore, the use of enzymatically inactive point mutations revealed that both AM and GL must be catalytically active for S. aureus to form a biofilm. The results of this study provide insight into the relative contributions of AM and GL in S. aureus and demonstrate the contribution of Atl-mediated lysis in biofilm development.
Contribution of the Staphylococcus aureus Atl AM and GL murein hydrolase activities in cell division, autolysis, and biofilm formation.

Science.gov (United States)

Bose, Jeffrey L; Lehman, McKenzie K; Fey, Paul D; Bayles, Kenneth W

2012-01-01

The most prominent murein hydrolase of Staphylococcus aureus, AtlA, is a bifunctional enzyme that undergoes proteolytic cleavage to yield two catalytically active proteins, an amidase (AM) and a glucosaminidase (GL). Although the bifunctional nature of AtlA has long been recognized, most studies have focused on the combined functions of this protein in cell wall metabolism and biofilm development. In this study, we generated mutant derivatives of the clinical S. aureus isolate, UAMS-1, in which one or both of the AM and GL domains of AtlA have been deleted. Examination of these strains revealed that each mutant exhibited growth rates comparable to the parental strain, but showed clumping phenotypes and lysis profiles that were distinct from the parental strain and each other, suggesting distinct roles in cell wall metabolism. Given the known function of autolysis in the release of genomic DNA for use as a biofilm matrix molecule, we also tested the mutants in biofilm assays and found both AM and GL necessary for biofilm development. Furthermore, the use of enzymatically inactive point mutations revealed that both AM and GL must be catalytically active for S. aureus to form a biofilm. The results of this study provide insight into the relative contributions of AM and GL in S. aureus and demonstrate the contribution of Atl-mediated lysis in biofilm development.
Effects of Oxygen on Biofilm Formation and the AtlA Autolysin of Streptococcus mutans▿

OpenAIRE

Ahn, Sang-Joon; Burne, Robert A.

2007-01-01

The Streptococcus mutans atlA gene encodes an autolysin required for biofilm maturation and biogenesis of a normal cell surface. We found that the capacity to form biofilms by S. mutans, one of the principal causative agents of dental caries, was dramatically impaired by growth of the organism in an aerated environment and that cells exposed to oxygen displayed marked changes in surface protein profiles. Inactivation of the atlA gene alleviated repression of biofilm formation in the presence ...
A combinaison of UV curing technology with ATL process

Science.gov (United States)

Balbzioui, I.; Hasiaoui, B.; Barbier, G.; L'hostis, G.; Laurent, F.; Ibrahim, A.; Durand, B.

2017-10-01

In order to reduce the time and the cost of manufacturing composite, UV curing technology combined with automated tape placement process (ATL) based on reverse approach by working with a fixed head was studied in this article. First, a brief description of the developed head placement is presented. Mechanical properties are then evaluated by varying process parameters, including compaction force and tape placement speed. Finally, a parametric study is carried out to identify suitable materials and process parameters to manufacture a photo composite material with high mechanical performances. The obtained results show that UV curing is a very good alternative for thermal polymerization because of its fast cure speed due to less dependency on temperature.
¿Qué pasa con el Pacífico Negro en el Atlántico Negro?. El Atlántico Negro de Paul Gilroy frente a los acontecimientos (afrocolombianos

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Lioba Rossbach de Olmos

2009-01-01

Full Text Available El presente artículo presenta una critica al Atlántico Negro ("The Black Atlantic" y a Paul Gilroy como representante de los estudios culturales desde un punto de vista antropológico y empírico usando como ejemplo la reciente dinámica política de Colombia. Especialmente en el "Pacífico Negro" colombiano se están constituyendo (nuevas identidades étnicas negras. La nueva constitución de 1991 y una serie de disposiciones legales favorables contribuyen a que el "Pacifico Negro" se presenta como antítesis del Atlántico Negro de Gilroy.
ATL9, a RING zinc finger protein with E3 ubiquitin ligase activity implicated in chitin- and NADPH oxidase-mediated defense responses.

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Marta Berrocal-Lobo

2010-12-01

Full Text Available Pathogen associated molecular patterns (PAMPs are signals detected by plants that activate basal defenses. One of these PAMPs is chitin, a carbohydrate present in the cell walls of fungi and in insect exoskeletons. Previous work has shown that chitin treatment of Arabidopsis thaliana induced defense-related genes in the absence of a pathogen and that the response was independent of the salicylic acid (SA, jasmonic acid (JA and ethylene (ET signaling pathways. One of these genes is ATL9 ( = ATL2G, which encodes a RING zinc-finger like protein. In the current work we demonstrate that ATL9 has E3 ubiquitin ligase activity and is localized to the endoplasmic reticulum. The expression pattern of ATL9 is positively correlated with basal defense responses against Golovinomyces cichoracearum, a biotrophic fungal pathogen. The basal levels of expression and the induction of ATL9 by chitin, in wild type plants, depends on the activity of NADPH oxidases suggesting that chitin-mediated defense response is NADPH oxidase dependent. Although ATL9 expression is not induced by treatment with known defense hormones (SA, JA or ET, full expression in response to chitin is compromised slightly in mutants where ET- or SA-dependent signaling is suppressed. Microarray analysis of the atl9 mutant revealed candidate genes that appear to act downstream of ATL9 in chitin-mediated defenses. These results hint at the complexity of chitin-mediated signaling and the potential interplay between elicitor-mediated signaling, signaling via known defense pathways and the oxidative burst.
Interceptação das chuvas em um fragmento de floresta da Mata Atlântica na Bacia do Prata, Recife, PE Rainfall interception in an Atlantic Forest fragment in the Prata Basin, Recife, PE

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Albert Einstein Spindola Saraiva de Moura

2009-06-01

Full Text Available A mata de Dois Irmãos é uma das poucas áreas remanescentes da Floresta Atlântica no Estado de Pernambuco. Nela estão inseridos os açudes do Meio, do Prata e Dois Irmãos que compõem a bacia hidrográfica do Prata. Este trabalho teve como objetivo estudar a partição das chuvas em um fragmento de Floresta Atlântica na Bacia do Prata em Recife, PE. Para obtenção dos dados de precipitação sob florestas, foram instalados 24 interceptômetros e selecionadas 20 árvores do estrato superior, e 10 árvores do sub-bosque foram escolhidas para obter os dados de escoamento pelo tronco. Encontraram-se perdas por interceptação de 208,3 mm, precipitação efetiva de 1.431,7 mm, precipitação interna de 1.392,4 mm, escoamento pelo tronco das árvores do estrato superior de 6,6 mm e escoamento pelo sub-bosque de 32,8 mm, correspondendo a 12,7%, 87,3%, 84,9%, 0,4% e 2%, respectivamente, do total precipitado de 1.464 mm.The Dois Irmãos forest is one of the few remaining areas of the Atlantic Forest in the State of Pernambuco. The dams of Meio, Prata and Dois Irmãos, which belong to the Prata Basin, are in it. The objective of this work was to study the rainfall partitioning in a fragment of the Atlantic forest in the Prata basin, in Recife, PE. 24 raingouges were installed in the interior of the forest to measure the throughfall and 20 trees of superior extract and 10 of the sub-forest were selected to determine the stemflow. The results showed values of loss interception of 208,3 mm, net precipitation of 1431,7 mm, throughfall of 1392,4 mm, stemflow by superior stratum of 6,6 mm and stemflow by sub-forest of 32,8 mm, corresponding to 12,7%, 87,3%, 84,9%, 0,4% and 2%, respectively.
Ilhas Crioulas: o significado plural da mestiçagem cultural na África Atlântica

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Roquinaldo Ferreira

2006-12-01

Full Text Available O objetivo deste artigo é analisar a interação cultural na África Atlântica, principalmente em Angola. O caso angolano é comparado com outras regiões da África, tais como a Senegâmbia, Costa do Ouro, Benin e Baía de Biafra. Tanto quanto Angola, estas regiões foram afetadas pelo tráfico de escravos, integrando de forma diferenciada as redes de comércio Atlânticas. Em Angola, a mestiçagem cultural alcançou níveis mais intensos do que no restante da África Atlântica, em virtude da maior intensidade e duração do tráfico, assim como do processo de "interiorização" de interesses luso-africanos na região do hinterland de Luanda, na primeira metade do século XIX.
Defense AT&L (Volume 34, Number 5, September-October 2005)

Science.gov (United States)

2005-10-01

swings open and a squat , cylindrical object negotiates itself over the threshold and then trundles into the officer’s quar- ters. In a metallic...nology. Defense AT&L: September-October 2005 50 U.S. Army Spc . Paul Miller, from the 9th Area Medical Laboratory at Aberdeen Proving Ground, Md., loads
Defense AT&L (Volume 34, Number 4, July-August 2005)

Science.gov (United States)

2005-08-01

login /login.jsp>. Mem- bers of the AT&L workforce, industry partners, and the general public now have a single place to register for their respective DAU... Emerald Coast Conference Center, Fort Wal- ton Beach, Fla. This year’s theme will be “Precision Strike Capabilities for the Future Battlefield.” Exhibit

Relaciones entre identidad atlética y personalidad en el deporte de competición

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T\\u00FAlia Cabrita

2014-01-01

Full Text Available En el estudio de la configuración de la identidad personal y la influencia que tiene la práctica deportiva en ella, Brewer, Van Raalte y Linder (1993, sugieren la importancia del estudio de la personalidad del deportista para la comprensión de la identidad atlética. El objetivo de este artículo se centra en el estudio de la influencia de los cinco grandes rasgos de la personalidad, en relación con el rol del deportista y su género, edad y nivel competitivo. La muestra se compone de un total de 215 participantes de varias modalidades deportivas y de distintos niveles, siendo evaluados mediante el AIMS-plus, para la identidad atlética, el NEO-FFI-20, para la personalidad, y un cuestionario sociodemográfico construído ad hoc. Los resultados muestran relaciones significativas entre la extraversión y el nível competitivo, con la identidade atlética. Se discuten los resultados y se presentan futuras líneas de investigación.
A model of ATL ground motion for storage rings

International Nuclear Information System (INIS)

Wolski, Andrzej; Walker, Nicholas J.

2003-01-01

Low emittance electron storage rings, such as those used in third generation light sources or linear collider damping rings, rely for their performance on highly stable alignment of the lattice components. Even if all vibration and environmental noise sources could be suppressed, diffusive ground motion will lead to orbit drift and emittance growth. Understanding such motion is important for predicting the performance of a planned accelerator and designing a correction system. A description (known as the ATL model) of ground motion over relatively long time scales has been developed and has become the standard for studies of the long straight beamlines in linear colliders. Here, we show how the model may be developed to include beamlines of any geometry. We apply the model to the NLC and TESLA damping rings, to compare their relative stability under different conditions
Escenarios climáticos para temporadas con alto y bajo número de huracanes en el Atlántico

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Eric J. Alfaro

2007-06-01

Full Text Available Se estudió la relación entre la variación de la actividad anual de los ciclones tropicales en el Atlántico y las variaciones decadales e interanuales de la Temperatura Superficial del Mar (TSM. Utilizando el análisis de tabla de contingencia se asignaron las probabilidades condicionales para los escenarios bajo, dentro y arriba de lo normal en la actividad anual de los ciclones tropicales dado un escenario bajo, dentro y arriba de lo normal en distintos índices de TSM para el periodo 1944-2004 (61 años. La actividad anual de los ciclones se estudió en función de la comparación normalizada de la TSM en el Atlántico y el Pacífico tropical. Se observó que años con pocos huracanes estaban acompañados de condiciones más frías (cálidas que el promedio en el Atlántico Tropical Norte (Pacífico Ecuatorial del Este, una mayor cortante vertical del viento en el Atlántico Tropical Norte pero menor en el Pacífico Ecuatorial del Este cerca de Centroamérica y una presión media a nivel del mar mayor (menor en el Atlántico Tropical Norte (Pacífico Ecuatorial del Este. Años con una alta actividad de huracanes mostraron, en términos generales, patrones opuestos en el campo de las anomalías a los descritos anteriormente para las regiones estudiadas.
Accuracy of qPCR for quantifying Leishmania kDNA in different skin layers of patients with American tegumentary leishmaniasis.

Science.gov (United States)

Sevilha-Santos, L; Dos Santos Júnior, A C M; Medeiros-Silva, V; Bergmann, J O; da Silva, E F; Segato, L F; Arabi, A Y M; de Paula, N A; Sampaio, R N R; Lima, B D; Gomes, C M

2018-05-03

Superficial swab sampling of American tegumentary leishmaniasis (ATL) lesions shows higher amounts of Leishmania than those from biopsy. Subcutaneous involvement is also important in ATL, but parasite quantification according to lesion depth has not been evaluated. We aim to present the best depth at which sampling should be performed for molecular exams of ATL. Patients with a clinical presentation compatible with ATL were allocated to ATL and control groups. Qualitative and quantitative qPCR assays were performed using SYBR Green and primers amplifying the kDNA minicircle of Leishmania spp. in different skin layers, including the epidermis, the superior dermis, the inferior dermis, and the hypodermis. Fifty-nine patients were included in this study, including 40 who had been diagnosed with ATL and 19 controls. The number of parasites was greater in samples of the epidermis and superior dermis (159.1 × 10 6 , range 4.0-781.7, and 75.4 × 10 6 , range 8.0-244.5, mean Leishmania parasite equivalents per μg of tissue DNA, respectively) than those in samples of the inferior dermis and hypodermis (54.6, range 8.0-256.6, and 16.8 × 10 6 , range 8.0-24.1, mean Leishmania parasite equivalents per μg of tissue DNA, respectively). The best diagnostic accuracy was achieved in the superior dermis (77.9%) and was significantly greater than that in the hypodermis (63.3%; p 0.039). We conclude that superficial sampling can retrieve a greater quantity of parasites. Future studies of the role of transepidermal elimination as a mechanism of host defence in ATL must be performed as there is a considerable quantity of Leishmania kDNA in the epidermis. Copyright © 2018 European Society of Clinical Microbiology and Infectious Diseases. Published by Elsevier Ltd. All rights reserved.
Diversidade de abelhas (Hymenoptera, Apidae) ao longo de um gradiente latitudinal na Mata Atlântica

OpenAIRE

Gonçalves,Rodrigo Barbosa; Brandão,Carlos Roberto Ferreira

2008-01-01

A Mata Atlântica é um dos ambientes mais ricos e ameaçados do mundo, o que deveria ter estimulado em muito o estudo e a conservação do Bioma, mas a fauna de Hymenoptera permanece ainda relativamente pouco conhecida. Em especial, a fauna de abelhas da floresta ombrófila densa é pouco estudada em comparação à fauna das áreas abertas brasileiras. O projeto temático "Biodiversidade de Hymenoptera e Isoptera: riqueza e diversidade ao longo de um gradiente latitudinal na Mata Atlântica - a floresta...
Barriers to accessing ATLS provider course for junior doctors at a ...

African Journals Online (AJOL)

Barriers to accessing ATLS provider course for junior doctors at a major university hospital in South Africa. ... South African Journal of Surgery ... Subgroup analysis comparing the reasons for PGY1s vs PGY2s demonstrated that not being able to secure a place on course was more common among PGY2s [19% vs 33%, ...
Historia Económica e Historia atlántica: algunas reflexiones sobre publicaciones recientes

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Santiago de Luxán Meléndez

2013-10-01

Full Text Available En el presente trabajo tratamos de contribuir a la apertura atlántica de la historiografía canaria, haciéndonos eco de diversas investigaciones que pueden englobarse bajo el paraguas de esta denominación. De este modo, desde la perspectiva general de la historia del azúcar, hemos atendido al Proyecto “Atlántica” Canarias-Madeira; a la renovación historiográfica española con relación a Cuba en el momento decisivo de los grandes cambios del mercado de este producto, entre 1875-1895; y al nacimiento de una potente historiografía brasileña del azúcar, ejemplificado en una de las últimas tesis doctorales realizadas en aquel país. El tabaco ha sido, en segundo lugar, el hilo conductor de tres grandes aportaciones en este terreno: la difusión del tabaco en España, la fiscalidad del tabaco y el nacimiento y funcionamiento de una fábrica de cigarros. Por último, nos hemos ocupado de las bases de la Expansión atlántica, con la presentación de una tesis realizada en nuestra Universidad, a propósito de la sociedad sevillana bajomedieval y de un libro colectivo editado por la Junta de Andalucía, sobre un producto, como es la sal, que también tuvo un cierto protagonismo en el comercio de ida y vuelta entre ambas vertientes del Atlántico.This paper tries to contribute to the Atlantic open up of Canarian historiography, gathering several studies that can be brought together under this denomination. Therefore, an overall perspective of the sugar history has been attended, taking care of the Canary-Madeira´s “Atlántica” Project, the Spanish renewed historiographic approach and its relation with Cuba in a time of dramatic changes in the market for this product among 1875-1895, and the Brazilian growing and powerful sugar historiography, illustrated by one of the latest doctoral thesis carried out in that country. Tobacco has been the thread of three main contributions in this field: tobacco circulation in Spain, its taxation
Streptococcus mutans autolysin AtlA is a fibronectin-binding protein and contributes to bacterial survival in the bloodstream and virulence for infective endocarditis.

Science.gov (United States)

Jung, Chiau-Jing; Zheng, Quan-Hau; Shieh, Ya-Hsiung; Lin, Chi-Shuan; Chia, Jean-San

2009-11-01

Streptococcus mutans, a commensal of the human oral cavity, can survive in the bloodstream and cause infective endocarditis (IE). However, the virulence factors associated with this manifestation of disease are not known. Here, we demonstrate that AtlA, an autolysin of S. mutans is a newly identified fibronectin (Fn) binding protein and contributes to bacterial resistance to phagocytosis and survival in the bloodstream. Interestingly, prior exposure to plasma at low concentrations was sufficient to enhance bacterial survival in the circulation. Calcium ions at physiological plasma concentrations induced maturation of AtlA from the 104-90 kDa isoform resulting in increased Fn binding and resistance to phagocytosis. An isogenic mutant strain defective in AtlA expression exhibited reduced survival and virulence when tested in a rat model of IE compared with the wild-type and complemented strains. The data presented suggest that plasma components utilized by S. mutans enhanced survival in the circulation and AtlA is a virulence factor associated with infective endocarditis.
Arab Teens Lifestyle Study (ATLS): objectives, design, methodology and implications

OpenAIRE

Al-Hazzaa, Hazzaa M; Musaiger, Abdulrahman O

2011-01-01

Hazzaa M Al-Hazzaa1,2, Abdulrahman O Musaiger3, ATLS Research Group1Exercise Physiology Laboratory, Department of Physical Education and Movement Sciences, College of Education, King Saud University, 2Scientific Board, Obesity Research Chair, King Saud University, Riyadh, Saudi Arabia; 3Arab Center for Nutrition, Manama, Bahrain, and Nutrition and Health Studies Unit, Deanship of Scientific Research, University of Bahrain, BahrainBackground: There is a lack of comparable data on physical acti...
ATLS Hypovolemic Shock Classification by Prediction of Blood Loss in Rats Using Regression Models.

Science.gov (United States)

Choi, Soo Beom; Choi, Joon Yul; Park, Jee Soo; Kim, Deok Won

2016-07-01

In our previous study, our input data set consisted of 78 rats, the blood loss in percent as a dependent variable, and 11 independent variables (heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure, pulse pressure, respiration rate, temperature, perfusion index, lactate concentration, shock index, and new index (lactate concentration/perfusion)). The machine learning methods for multicategory classification were applied to a rat model in acute hemorrhage to predict the four Advanced Trauma Life Support (ATLS) hypovolemic shock classes for triage in our previous study. However, multicategory classification is much more difficult and complicated than binary classification. We introduce a simple approach for classifying ATLS hypovolaemic shock class by predicting blood loss in percent using support vector regression and multivariate linear regression (MLR). We also compared the performance of the classification models using absolute and relative vital signs. The accuracies of support vector regression and MLR models with relative values by predicting blood loss in percent were 88.5% and 84.6%, respectively. These were better than the best accuracy of 80.8% of the direct multicategory classification using the support vector machine one-versus-one model in our previous study for the same validation data set. Moreover, the simple MLR models with both absolute and relative values could provide possibility of the future clinical decision support system for ATLS classification. The perfusion index and new index were more appropriate with relative changes than absolute values.
Arabidopsis Tóxicos en Levadura 78 (AtATL78) mediates ABA-dependent ROS signaling in response to drought stress

DEFF Research Database (Denmark)

Suh, Ji Yeon; Kim, Soo Jin; Oh, Tae Rin

2016-01-01

concentrations of Ca(2+), a down-stream signaling molecule of ABA signaling pathway, atatl78 mutant plants successfully closed the pores. Furthermore, AtATL78 protein indirectly associated with catalases and the deficiency of AtATL78 led the reduction of catalase activity and H2O2, implying the function of At...
SPS data on tunnel displacements and the ATL law

International Nuclear Information System (INIS)

Shiltsev, V.

1993-09-01

In this article we analyze data from long-term measurements of quadrupole displacements in the Super Proton Synchrotron ring at CERN. The variance of displacement can be approximated by ATL law with coefficient A = (0.1--0.4) * 10 -4 μm 2 /s/m, with T the time interval between measurements and L the distance between two points of the tunnel. The shape of the distribution function is found to be close to Gaussian. The results of the analysis are compared with other data on slow ground motion
El asentamiento al aire libre de La Fontanilla (Conil de la Frontera, Cádiz). Nuevas aportaciones para el estudio de las comunidades de cazadores-recolectores especializados en la banda atlántica de Cádiz

OpenAIRE

Ramos Muñoz, José; Castañeda Fernández, Vicente

2009-01-01

RESUMEN: Presentamos de forma sucinta el asentamiento de La Fontanilla en la Banda Atlántica de Cádiz. Analizamos la estratigrafía del depósito y su posición geomorfológica. Aportamos un balance de la tecnología y tipología de las industrias líticas que permiten una definición en el tecnocomplejo Solutrense Superior y Solutreogravetiense. Indicamos la fauna asociada y planteamos un enmarque histórico con los asentamientos sincrónicos. Trabajamos en la definición de los modos de vida y de trab...
Creencias sobre voto, democracia y funciones de un alcalde en municipios del departamento del Atlántico

OpenAIRE

Marcela Navia Núñez; Leonardo Antonio Di Mare Pareja

2012-01-01

Abstract This research paper shows the results of a study aimed at knowing the policy-related beliefs among likely-to-vote inhabitants of municipalities in the department of Atlántico (Colombia). 2.200 people were interviewed using the free associations technique for the phrases “voting” and “democracy”, they were also asked about the major functions of the city mayor. As a result, “voting” was related to “election”, and “democracy” and “freedom”, in like manner, answers about the function...
Presentación de Atlánticas. Revista Internacional de Estudios Feministas

Directory of Open Access Journals (Sweden)

Rosa Cobo Bedia

2016-12-01

Full Text Available El Centro de Estudios de Género y Feministas ha puesto en marcha Atlánticas. Revista Internacional de Estudios Feministas con el apoyo de la Universidade da Coruña. Con esta publicación digital queremos contribuir, junto a revistas de otras universidades españolas, a la difusión de la teoría feminista y los estudios de género. Las señas de identidad de esta revista son el rigor intelectual y la pluralidad ideológica. Atlánticas, sin embargo, tiene la vista puesta no solo en la universidad sino también en la sociedad civil, pues sabemos que las reflexiones feministas solo son posibles si existe un movimiento feminista activo, crítico y plural. Consideramos que la teoría y la práctica política son inseparables. En el mismo sentido, esta revista no se dirige solo a la comunidad académica y a la sociedad civil española y portuguesa sino también a espacios universitarios y sociales de América Latina, Centroamérica y el Caribe.
Presenten l'Atles global de justícia ambiental

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Martínez Alier, Joan

2014-01-01

Un equip internacional d'experts coordinat per investigadors de l'Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) ha presentat a la Delegació del Programa de les Nacions Unides per al Medi Ambient (Brussel·les) l'Atles Global de Justícia Ambiental, una plataforma interactiva de mapes que analitza la trajectòria de més d'un miler de conflictes ecològics i espais de resistència a nivell mundial. El projecte vol arribar a dos mil casos el 2015....
International Cooperation in Acquisition, Technology and Logistics (IC in AT&L) Handbook

Science.gov (United States)

2012-05-01

to think of the hierarchy of relationships as a pyramid as illustrated in Figure 1-2. Even though IC in AT&L programs form the capstone, it does...negotiation Czech Republic RDT&E Agreement Egypt TRDP Agreement Finland RDT&E Agreement in final national staffing France RDT&E Agreement Germany RDT&E...Act Australia Luxembourg Belgium Netherlands Canada Norway Egypt Portugal Denmark Spain France Sweden Germany Switzerland Greece Turkey Israel
Pictorial Superiority Effect

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Nelson, Douglas L.; And Others

1976-01-01

Pictures generally show superior recognition relative to their verbal labels. This experiment was designed to link this pictorial superiority effect to sensory or meaning codes associated with the two types of symbols. (Editor)
Diversidade dos Belytinae (Hymenoptera: Diaprioidea: Diapriidae) ao longo de um gradiente latitudinal de Mata Atlântica Ombrófila Densa

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Alex Leite Quadros

2015-01-01

Os principais objetivos deste trabalho foram conhecer a distribuição da riqueza dos Hymenoptera parasitoides Diapriidae Belytinae ao longo de um gradiente latitudinal da Mata Atlântica e explicar as causas do padrão de riqueza encontrado por comparação com os padrões descritos para outros grupos. Os Belytinae exercem papel chave na regulação natural de populações de muitas espécies de Mycetophilidae e Sciaridae (Diptera) e o conhecimento sobre a diversidade desta subfamília no bioma Mata Atlâ...
Oral administration of an HSP90 inhibitor, 17-DMAG, intervenes tumor-cell infiltration into multiple organs and improves survival period for ATL model mice

International Nuclear Information System (INIS)

Ikebe, E; Kawaguchi, A; Tezuka, K; Taguchi, S; Hirose, S; Matsumoto, T; Mitsui, T; Senba, K; Nishizono, A; Hori, M; Hasegawa, H; Yamada, Y; Ueno, T; Tanaka, Y; Sawa, H; Hall, W; Minami, Y; Jeang, K T; Ogata, M; Morishita, K; Hasegawa, H; Fujisawa, J; Iha, H

2013-01-01

In the peripheral blood leukocytes (PBLs) from the carriers of the human T-lymphotropic virus type-1 (HTLV-1) or the patients with adult T-cell leukemia (ATL), nuclear factor kappaB (NF-κB)-mediated antiapoptotic signals are constitutively activated primarily by the HTLV-1-encoded oncoprotein Tax. Tax interacts with the I κB kinase regulatory subunit NEMO (NF-κB essential modulator) to activate NF-κB, and this interaction is maintained in part by a molecular chaperone, heat-shock protein 90 (HSP90), and its co-chaperone cell division cycle 37 (CDC37). The antibiotic geldanamycin (GA) inhibits HSP90's ATP binding for its proper interaction with client proteins. Administration of a novel water-soluble and less toxic GA derivative, 17-dimethylaminoethylamino-17-demethoxygeldanamycin hydrochloride (17-DMAG), to Tax-expressing ATL-transformed cell lines, C8166 and MT4, induced significant degradation of Tax. 17-DMAG also facilitated growth arrest and cellular apoptosis to C8166 and MT4 and other ATL cell lines, although this treatment has no apparent effects on normal PBLs. 17-DMAG also downregulated Tax-mediated intracellular signals including the activation of NF-κB, activator protein 1 or HTLV-1 long terminal repeat in Tax-transfected HEK293 cells. Oral administration of 17-DMAG to ATL model mice xenografted with lymphomatous transgenic Lck-Tax (Lck proximal promoter-driven Tax transgene) cells or HTLV-1-producing tumor cells dramatically attenuated aggressive infiltration into multiple organs, inhibited de novo viral production and improved survival period. These observations identified 17-DMAG as a promising candidate for the prevention of ATL progression

Soledad (Atlántico

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Rafael Tuesca Molina

2007-01-01

Full Text Available Objetivo: Identificar los hábitos de salud en escolares de una institución pública en el municipio de Soledad (Atlántico. Material y Métodos: Estudio descriptivo transversal con una muestra de 576 escolares estratificados por grados de enseñanza. Se aplicó un cuestionario español que mide hábitos de salud adaptado a nuestra región. La tabulación se realizó en SPSS versión 13 en español. Resultados: En los varones a medida que aumenta el estadio de la adolescencia disminuye la actividad física, aumenta el consumo de tabaco, alcohol, sustancias psicoactivas, se protegen menos en sus relaciones sexuales, y se exponen a riesgos para accidentabilidad (no uso del casco en motos, no utilizan el puente peatonal y participación en actos violentos. En las mujeres se observa que al avanzar el estadio de su adolescencia desayunan menos, consumen más alcohol, se protegen menos en sus relaciones sexuales y se exponen también a riesgos de accidentabilidad como los hombres. Conclusiones: El estadio de la adolescencia se relaciona con conductas de riesgos y pobres hábitos saludables. Es importante adaptar en la estrategia de Escuelas Saludables los determinantes de riesgos en esta población, a fin de transformar y favorecer potencialidades dentro y fuera de la escuela, mediante el apoyo multisectorial (academia, servicios y comunidad.
Do Adults with Mental Retardation Show Pictorial Superiority Effects in Recall and Recognition?

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Cherry, Katie E.; Applegate, Heather; Reese, Celinda M.

2002-01-01

A study examined memory for pictures and words in 16 adults with mental retardation and 24 controls. Pictorial superiority effects occurred in free recall and recognition for both intelligence-level groups. Correlational analyses indicated working memory span was primarily related to recall performance, irrespective of stimulus format. (Contains…
El proceso de autoevaluación y autoregulación de la Sede del Atlántico de la Universidad de Costa Rica: Una mirada a la opinión de sus participantes tres años después

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Susan Francis Salazar

2002-01-01

Full Text Available El autoestudio y la autovaloración como estrategias evaluativas para los diferentes sistemas de educación superior han creado la necesidad de abrir espacios para la revisión y análisis de experiencias vividas; como es la que desarrolló la Sede del Atlántico, en 1996, como parte del Programa Cre-Columbus y patrocinado por la Vicerrectoría de Docencia. Este trabajo intenta hacer una revisión y análisis de las opiniones de los participantes del proceso de Autoevaluación y Autorregulación vivido en la Sede durante los años 1996-1997 y la implementación de los proyectos que se originaron como parte del Plan de Acción, generando así una serie de consideraciones importantes dentro de los procesos de evaluación en la educación superior
O Brasil e a cooperação em defesa: a construção de uma identidade regional no Atlântico Sul

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Adriana Erthal Abdenur

2014-01-01

Full Text Available O artigo analisa a cooperação que o Brasil vem desenvolvendo ao longo do Atlântico Sul, mostrando que o País vem desempenhando o papel de region-builder na construção de uma identidade sul-atlântica com posição de destaque para si. Tais esforços começam a ser contestados por outros atores de dentro e fora da região.
ATLes: the strategic application of Web-based technology to address learning objectives and enhance classroom discussion in a veterinary pathology course.

Science.gov (United States)

Hines, Stephen A; Collins, Peggy L; Quitadamo, Ian J; Brahler, C Jayne; Knudson, Cameron D; Crouch, Gregory J

2005-01-01

A case-based program called ATLes (Adaptive Teaching and Learning Environments) was designed for use in a systemic pathology course and implemented over a four-year period. Second-year veterinary students working in small collaborative learning groups used the program prior to their weekly pathology laboratory. The goals of ATLes were to better address specific learning objectives in the course (notably the appreciation of pathophysiology), to solve previously identified problems associated with information overload and information sorting that commonly occur as part of discovery-based processes, and to enhance classroom discussion. The program was also designed to model and allow students to practice the problem-oriented approach to clinical cases, thereby enabling them to study pathology in a relevant clinical context. Features included opportunities for students to obtain additional information on the case by requesting specific laboratory tests and/or diagnostic procedures. However, students were also required to justify their diagnostic plans and to provide mechanistic analyses. The use of ATLes met most of these objectives. Student acceptance was high, and students favorably reviewed the online ''Content Links'' that made useful information more readily accessible and level appropriate. Students came to the lab better prepared to engage in an in-depth and high-quality discussion and were better able to connect clinical problems to underlying changes in tissue (lesions). However, many students indicated that the required time on task prior to lab might have been excessive relative to what they thought they learned. The classroom discussion, although improved, was not elevated to the expected level-most likely reflecting other missing elements of the learning environment, including the existing student culture and the students' current discussion skills. This article briefly discusses the lessons learned from ATLes and how similar case-based exercises might be
Sentence processing in anterior superior temporal cortex shows a social-emotional bias.

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Mellem, Monika S; Jasmin, Kyle M; Peng, Cynthia; Martin, Alex

2016-08-01

The anterior region of the left superior temporal gyrus/superior temporal sulcus (aSTG/STS) has been implicated in two very different cognitive functions: sentence processing and social-emotional processing. However, the vast majority of the sentence stimuli in previous reports have been of a social or social-emotional nature suggesting that sentence processing may be confounded with semantic content. To evaluate this possibility we had subjects read word lists that differed in phrase/constituent size (single words, 3-word phrases, 6-word sentences) and semantic content (social-emotional, social, and inanimate objects) while scanned in a 7T environment. This allowed us to investigate if the aSTG/STS responded to increasing constituent structure (with increased activity as a function of constituent size) with or without regard to a specific domain of concepts, i.e., social and/or social-emotional content. Activity in the left aSTG/STS was found to increase with constituent size. This region was also modulated by content, however, such that social-emotional concepts were preferred over social and object stimuli. Reading also induced content type effects in domain-specific semantic regions. Those preferring social-emotional content included aSTG/STS, inferior frontal gyrus, posterior STS, lateral fusiform, ventromedial prefrontal cortex, and amygdala, regions included in the "social brain", while those preferring object content included parahippocampal gyrus, retrosplenial cortex, and caudate, regions involved in object processing. These results suggest that semantic content affects higher-level linguistic processing and should be taken into account in future studies. Copyright © 2016. Published by Elsevier Ltd.
Acceso y permanencia a la Educación Superior de mujeres indígenas mayangnas, URACCAN Las Minas, 2009 – 2010

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Sorayda Del Carmen Herrera Siles

2012-10-01

Full Text Available Se ha descrito el acceso y permanencia en la Educación Superior de mujeres indígenas mayangnas en el Recinto URACCAN Las Minas, período 2000-2009, en las comunidades de Wasakín y el Cuarto Territorio Indígena Mayangna (Mayangna Sauni Arunka, ubicadas en los municipios de Rosita y Bonanza, Región Autónoma del Atlántico Norte (RAAN. Se realizó en el marco en una perspectiva cualitativa, a partir del enfoque etnográfico con el apoyo de la observación y la entrevista. La diferencia cultural y la pobreza que implica la falta de recursos monetarios en efectivo, han sido los principales obstáculos que limita a las jóvenes indígenas al acceso y permanencia de la Educación Superior. Las mujeres indígenas no tienen la posibilidad de ejercer plenamente sus derechos ciudadanos en igualdad de condiciones, carecen de oportunidades para desarrollar sus capacidades y talentos. Los embarazos han sido la causa principal por la cual la mayoría de las mujeres indígenas abandonen sus estudios superiores. Se destaca asimismo, que solamente la URACCAN hace presencia en el territorio Mayangna Sauni Arunka y la comunidad Wasakín para promover el acceso y la permanencia de las mujeres a la Educación Superior por medio de un sistema de becas.
Variação intraespecífica do lenho de Eugenia uniflora L. em duas diferentes fitofisionomias do complexo vegetacional atlântico

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Priscila Alves Marques

Full Text Available Myrtaceae está entre as principais famílias lenhosas da Floresta Atlântica, destacando-se Eugenia L. como o gênero de maior riqueza de espécies na família. Eugenia uniflora L. apresenta grande representatividade em áreas de restinga, seu ambiente natural, e é amplamente cultivada em outras regiões em função da sua importância econômica. Este estudo investigou a anatomia do lenho de E. uniflora, crescendo em duas fitofisionomias do complexo vegetacional atlântico no Estado do Rio de Janeiro. Dezesseis parâmetros anatômicos foram analisados e revelaram que os elementos celulares dos indivíduos de restinga apresentam maior frequência e são mais curtos e mais largos, e os raios mais baixos e largos do que os dos indivíduos crescendo na Floresta Ombrófila Densa. Os resultados mostraram como as condições ambientais influenciam a estrutura anatômica da madeira e indicam variações intraespecíficas da espécie e de seus mecanismos de adaptação e de sobrevivência no complexo Mata Atlântica.
Contribution of the autolysin AtlA to the bactericidal activity of amoxicillin against Enterococcus faecalis JH2-2.

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Bravetti, Anne-Lise; Mesnage, Stéphane; Lefort, Agnès; Chau, Françoise; Eckert, Catherine; Garry, Louis; Arthur, Michel; Fantin, Bruno

2009-04-01

The bactericidal activity of amoxicillin was investigated against Enterococcus faecalis JH2-2 and against an isogenic mutant deficient in the production of the N-acetylglucosaminidase AtlA. Comparison of the two strains indicated that this autolysin contributes to killing by amoxicillin both in vitro and in a rabbit model of experimental endocarditis.
Prevalencia de obesidad en adultos del municipio de Soledad (Atlántico, Colombia), 2010

OpenAIRE

Edgar Navarro Lechuga; Rusvelt Vargas Moranth

2012-01-01

Objetivo: Determinar la prevalencia de obesidad en adultos del municipio de Soledad (Atlántico, Colombia) según diferentes consensos de clasificación. Materiales y métodos: Estudio descriptivo, transversal. Se calculó una muestra de 790 individuos (N=103731; prevalencia esperada: 22%; error: 3%; nivel de confianza: 95%). Previo consentimiento informado, se aplicó una encuesta sobre factores de riesgo cardiovascular, y a los individuos también se les tomó el peso, la talla y el perímetro de ci...
Equações de volume e de taper para quantificar multiprodutos da madeira em Floresta Atlântica Volume and taper equations for wood multiproducts quantification in Floresta Atlantica-Brazil

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José Franklin Chichorro

2003-12-01

Full Text Available Este estudo foi conduzido com o objetivo de ajustar uma equação de volume, a partir do modelo logaritmizado de Schumacher & Hall (1933, para estimar o volume comercial, e uma equação de afilamento (taper, a partir do modelo de Demaerschalk (1972, para estimar a quantidade de multiprodutos de madeira de espécies da Floresta Atlântica. Os dados foram coletados na Gleba C da Floresta Nacional do Rio Preto - IBAMA, no município de Conceição da Barra-ES. Foram mensuradas 165 árvores em pé, subdivididas em dez classes de diâmetro, com qualidade de fuste QF1 e pertencentes às espécies com maior VI e, ou, espécies de valor comercial. Essas árvores reuniram 62 espécies e 38 famílias. A equação de volume ajustou-se bem aos dados, com 2 igual a 0,9815 e resíduos normalmente distribuídos. A equação de taper também ajustou-se bem aos dados, com 2 igual a 0,9346 e distribuição gráfica dos resíduos normal. Pelo teste F (Graybill, 1976, constatou-se que houve igualdade entre os diâmetros observados e os diâmetros estimados pela equação de taper. A partir de transformações algébricas da equação de taper, foram estimados a altura para um determinado diâmetro superior d e o volume do tronco ou de parte dele. Em seguida, podem ser estimados o número de toras e o respectivo volume, em função do comprimento da tora, do diâmetro superior d mínimo e do uso desejado, o que permite avaliar a árvore em pé.This study was carried out to estimate a volume equation from a logarithmic model of Schumacher & Hall (1933 for comercial volume determination and a taper equation from the model of Demaerschalk (1972, to estimate wood multiproducts yield in Floresta Atlântica. Data were collected in Gleba C (C Glebe, with 289.5 hectares, owned by Floresta Nacional do Rio Preto (Rio Preto National Forest, under the administration of IBAMA, located in Conceição da Barra - Espírito Santo, Brazil. A total of 165 standing trees were measured
Relationship between the occlusal plane corresponding to the lateral borders of the tongue and ala-tragus line in edentulous patients.

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Ghosn, Carole Abi; Zogheib, Carla; Makzoumé, Joseph E

2012-09-01

Definitions of the ala-tragus line (ATL) cause confusion, because the exact points of reference for this line do not agree. This study determined the relationship between the prosthetic occlusal plane (OP) corresponding to the lateral borders of the tongue and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL 1), (2) the tip (ATL 2) and (3) the inferior border of the tragus (ATL 3). Neutral zone moldings using phonation and autopolymerizing acrylic resin were recorded and leveled with the lateral borders of the tongue. Lateral cephalometric radiographs were taken of each subject by a standard method. Tracings were obtained on acetate paper to show the prosthetic OP and the three ATLs. The relationship between the prosthetic OP and each of ATL was measured for each subject. Mean and standard deviation values were then calculated for the relationship. Statistical analysis was performed using repeated measure analysis of variance followed by Bonferroni pairwise comparisons and Student's t-test (α = 0.05). Significant difference was found between the three mean angles (p = 0.001). There was no significant difference between the mean angle (5.00° ± 4.38) formed by OP and ATL 2, and the mean angle (4.90° ± 3.50) formed by OP and ATL 3 (p = 1.00) which revealed the smallest. The findings of this study indicated that ATLs, extending from the inferior border of the ala of the nose to (1) the tip of the tragus of the ear, and (2) the inferior border of the tragus presented the closest relationship to the prosthetic OP corresponding to the lateral borders of the tongue. When the ATL is used for orientation of the OP in denture construction, it would seem preferable to define it as running from the inferior border of the ala of the nose to the tip or to the inferior border of the tragus of the ear.
Cogestión de recursos naturales en la Región Atlántica de Colombia

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Zulma Martínez Rodríguez

2004-01-01

Full Text Available La gestión de los recursos naturales constituye un problema transfronterizo e interdisciplinario que ha estado en la base de muchos conflictos. Abarca no sólo el campo biológico sino el social, económico y político. La ineficiencia de la gestión de los recursos naturales en Colombia es hoy en día crítica, particularmente en la Región de la Costa Atlántica, como se muestra en el presente artículo. Desde una perspectiva histórica, multidisciplinar y de análisis de actores en los entornos local, nacional e internacional, la autora examina esta problemática, aplicando los conceptos de biodiversidad, ecoturismo y áreas protegidas (parques naturales. Centrándose en una estrategia de coecoturismo, como una opción efectiva para el mejoramiento de la gestión de los recursos naturales, analiza el proceso de participación y fortalecimiento (empowerment de las comunidades de la Costa Atlántica en el proceso de gestión de áreas protegidas, mediante la canalización de recursos financieros y técnicos de organismos internacionales en interacción con instituciones del Estado y comunidades locales.
Added diagnostic benefit of 16-row whole-body spiral CT in patients with multiple trauma differentiated by region and injury severity according to the ATLS registered concept

International Nuclear Information System (INIS)

Maurer, M.H.; Knopke, S.; Schroeder, R.J.

2008-01-01

Purpose: to determine the added diagnostic benefit of using MS-CT in multiple trauma patients differentiated by severity of injury and affected body region. Materials and methods: a retrospective analysis was performed of the 16-row whole-body spiral CT findings in 275 multiple trauma patients (73% men, 27% women; age 39.6 ± 18.9 years) with regard to additional findings and new findings obtained with CT compared to the findings obtained by conventional projection radiography and abdominal ultrasound in the emergency room. The additional and new findings were differentiated by body region (head, face, chest, pelvis, abdomen, spine) and the degree of severity according to the three classes of injuries distinguished by the ATLS registered concept (class 1: simple injury, class 2: potentially life threatening, class 3: immediately life threatening). Results: a total of 921 additional findings (findings potentially relevant for further diagnosis and therapy in addition to the findings obtained by conventional radiography or ultrasound) were obtained by MS-CT in all patients. The distribution by number of patients and body region was as follows: 22 neck, 76 face, 125 chest, 112 abdomen, 50 pelvis, and 91 spine. Most additional findings were categorized as potentially life threatening (ATLS class 2). In addition, there were 439 completely new findings, involving the head in 128 patients (mostly ATLS class 3), the face in 18, the chest in 47, the abdomen in 26, and the spine in 9 patients. Most new findings involving the face, abdomen, and spine were ATLS class 2 injuries. (orig.)
AtlA Functions as a Peptidoglycan Lytic Transglycosylase in the Neisseria gonorrhoeae Type IV Secretion System▿

OpenAIRE

Kohler, Petra L.; Hamilton, Holly L.; Cloud-Hansen, Karen; Dillard, Joseph P.

2007-01-01

Type IV secretion systems require peptidoglycan lytic transglycosylases for efficient secretion, but the function of these enzymes is not clear. The type IV secretion system gene cluster of Neisseria gonorrhoeae encodes two peptidoglycan transglycosylase homologues. One, LtgX, is similar to peptidoglycan transglycosylases from other type IV secretion systems. The other, AtlA, is similar to endolysins from bacteriophages and is not similar to any described type IV secretion component. We chara...
[Advanced Trauma Life Support (ATLS) in the emergency room. Is it suitable as an SOP?].

Science.gov (United States)

Shafizadeh, S; Tjardes, T; Steinhausen, E; Balke, M; Paffrath, T; Bouillon, B; Bäthis, H

2010-08-01

There is clinical evidence that a standardized management of trauma patients in the emergency room improves outcome. ATLS is a training course that teaches a systematic approach to the trauma patient in the emergency room. The aims are a rapid and accurate assessment of the patient's physiologic status, treatment according to priorities, and making decisions on whether the local resources are sufficient for adequate definitive treatment of the patient or if transfer to a trauma center is necessary. Above all it is important to prevent secondary injury, to realize timing as a relevant factor in the initial treatment, and to assure a high standard of care. A standard operating procedure (SOP) exactly regulates the approach to trauma patients and determines the responsibilities of the involved faculties. An SOP moreover incorporates the organizational structure in the treatment of trauma patients as well as the necessary technical equipment and staff requirements. To optimize process and result quality, priorities are in the fields of medical fundamentals of trauma care, education, and fault management. SOPs and training courses increase the process and result quality in the treatment of the trauma patient in the emergency room. These programs should be based on the special demands of the physiology of the trauma as well as the structural specifics of the hospital. ATLS does not equal an SOP but it qualifies as a standardized concept for management of trauma patients in the emergency room.
Biochemical comparison of two Hypostomus populations (Siluriformes, Loricariidae from the Atlântico Stream of the upper Paraná River basin, Brazil

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Kennya F. Ito

2009-01-01

Full Text Available Two syntopic morphotypes of the genus Hypostomus - H. nigromaculatus and H. cf. nigromaculatus (Atlântico Stream, Paraná State - were compared through the allozyme electrophoresis technique. Twelve enzymatic systems (AAT, ADH, EST, GCDH, G3PDH, GPI, IDH, LDH, MDH, ME, PGM and SOD were analyzed, attributing the score of 20 loci, with a total of 30 alleles. Six loci were diagnostic (Aat-2, Gcdh-1, Gpi-A, Idh-1, Ldh-A and Mdh-A, indicating the presence of interjacent reproductive isolation. The occurrence of few polymorphic loci acknowledge two morphotypes, with heterozygosity values He = 0.0291 for H. nigromaculatus and He = 0.0346 for H. cf. nigromaculatus. F IS statistics demonstrated fixation of the alleles in the two morphotypes. Genetic identity (I and distance (D of Nei (1978 values were I = 0.6515 and D = 0.4285. The data indicate that these two morphotypes from the Atlântico Stream belong to different species.
Ex vivo lung perfusion with adenosine A2A receptor agonist allows prolonged cold preservation of lungs donated after cardiac death.

Science.gov (United States)

Wagner, Cynthia E; Pope, Nicolas H; Charles, Eric J; Huerter, Mary E; Sharma, Ashish K; Salmon, Morgan D; Carter, Benjamin T; Stoler, Mark H; Lau, Christine L; Laubach, Victor E; Kron, Irving L

2016-02-01

Ex vivo lung perfusion has been successful in the assessment of marginal donor lungs, including donation after cardiac death (DCD) donor lungs. Ex vivo lung perfusion also represents a unique platform for targeted drug delivery. We sought to determine whether ischemia-reperfusion injury would be decreased after transplantation of DCD donor lungs subjected to prolonged cold preservation and treated with an adenosine A2A receptor agonist during ex vivo lung perfusion. Porcine DCD donor lungs were preserved at 4°C for 12 hours and underwent ex vivo lung perfusion for 4 hours. Left lungs were then transplanted and reperfused for 4 hours. Three groups (n = 4/group) were randomized according to treatment with the adenosine A2A receptor agonist ATL-1223 or the dimethyl sulfoxide vehicle: Infusion of dimethyl sulfoxide during ex vivo lung perfusion and reperfusion (DMSO), infusion of ATL-1223 during ex vivo lung perfusion and dimethyl sulfoxide during reperfusion (ATL-E), and infusion of ATL-1223 during ex vivo lung perfusion and reperfusion (ATL-E/R). Final Pao2/Fio2 ratios (arterial oxygen partial pressure/fraction of inspired oxygen) were determined from samples obtained from the left superior and inferior pulmonary veins. Final Pao2/Fio2 ratios in the ATL-E/R group (430.1 ± 26.4 mm Hg) were similar to final Pao2/Fio2 ratios in the ATL-E group (413.6 ± 18.8 mm Hg), but both treated groups had significantly higher final Pao2/Fio2 ratios compared with the dimethyl sulfoxide group (84.8 ± 17.7 mm Hg). Low oxygenation gradients during ex vivo lung perfusion did not preclude superior oxygenation capacity during reperfusion. After prolonged cold preservation, treatment of DCD donor lungs with an adenosine A2A receptor agonist during ex vivo lung perfusion enabled Pao2/Fio2 ratios greater than 400 mm Hg after transplantation in a preclinical porcine model. Pulmonary function during ex vivo lung perfusion was not predictive of outcomes after transplantation. Copyright �
Creencias sobre voto, democracia y funciones de un alcalde en municipios del departamento del Atlántico

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Marcela Navia Núñez

2012-01-01

Full Text Available Abstract This research paper shows the results of a study aimed at knowing the policy-related beliefs among likely-to-vote inhabitants of municipalities in the department of Atlántico (Colombia. 2.200 people were interviewed using the free associations technique for the phrases “voting” and “democracy”, they were also asked about the major functions of the city mayor. As a result, “voting” was related to “election”, and “democracy” and “freedom”, in like manner, answers about the functions of a mayor were oriented to his/her job. The most common answer regarding to mayor was “to work for the people, needs and their living conditions.” These results constitute the framework of beliefs with which voters then evaluate city management and adjust their own participation in the electoral process. Depending on the evaluation results, cognitive dissonance may arise. Resumen El presente artículo de investigación muestra los resultados de un trabajo orientado a conocer las creencias relacionadas con la política entre habitantes de municipios del departamento del Atlántico (Colombia, con intención de votar. Se entrevistaron 2200 personas con la técnica de asociación libre para los términos voto y democracia; también se preguntó por las funciones de un alcalde. Los resultados indican que el término voto se identificó con elección, democracia y libertad, en tanto que las funciones de un alcalde se encaminaron a sus obras. Entre estas, las más frecuentes fueron: trabajar por las necesidades del pueblo y las condiciones de vida. Estos resultados se constituyen en el marco de creencias con el que luego los electores evaluarán la gestión y su propia participación en el proceso electoral. Dependiendo de esa evaluación, aparecerá o no la disonancia cognitiva.
Kompetisi Stasiun Televisi Swasta Nasional Berdasarkan Superiority Direction dan Superiority Magnitude

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Anastasia Winanti Riesardhy

2013-11-01

Full Text Available Abstract: Uses and gratification theory is employed particularly as the teoritical frame of the research to examine the extent to which ten national television stations compete to satisfy Indonesian audiences. In particular, two main concepts of that theory namely audiences â€œgratification sought and gratifications obtained, are broken down and counted based on superiority direction and superiority magnitude. In general, the findings show that those televisions have satisfied their audiences, although in terms of gratifications to dispersal motives, they havenâ€™t satisfied as much as it was expected. Significant competition occurs between TRANSTV and TRANS7, RCTI and SCTV, and TVONE and METROTV. TVONE become the most satisfiyng television station. Abstrak: Teori Uses & Gratification menjadi dasar penelitian ini untuk mengukur bagaimana kompetisi yang terjadi di antara sepuluh stasiun televisi yang bersiaran secara nasional di Indonesia. Aplikasi dari teori tersebut dimunculkan dalam konsep kepuasan yang diharapkan dan kepuasan yang diperoleh ketika menonton acara televisi dan didasarkan pada penghitungan superiority direction dan superiority magnitude. Sepuluh stasiun televisi yang diteliti telah dapat memuaskan audiensnya, meskipun untuk kepuasan atas motif pengalihan masih belum dapat melampaui kepuasan yang diharapkan. Kompetisi yang signifikan terjadi antara TRANSTV dengan TRANS7, RCTI dengan SCTV serta TVONE dengan METROTV. TVONE menjadi stasiun televisi yang menduduki peringkat pertama dalam memberikan kepuasan tertinggi kepada audiens.

Double elevator weakening for unilateral congenital superior oblique palsy with ipsilateral superior rectus contracture and lax superior oblique tendon.

Science.gov (United States)

Khan, Arif O

2012-06-01

In unilateral congenital superior oblique palsy, a large hypertropia is sometimes associated with ipsilateral contracture of the superior rectus muscle and apparent overaction of the contralateral superior oblique. Ipsilateral double elevator weakening is one surgical approach; however, this procedure could compromise supraduction. We report a series of three consecutive patients who underwent ipsilateral superior rectus and inferior oblique recessions for unilateral superior oblique palsy. Intraoperatively, all three patients were found to have a lax ipsilateral superior oblique tendon. Postoperatively, all three patients had satisfactory correction of the hypertropia and abnormal head position with minimal supraduction defect. This procedure seems to be an acceptable initial surgical option for treating congenital superior oblique muscle palsy with ipsilateral contracture of the superior rectus muscle, even when the ipsilateral superior oblique tendon is lax. Copyright © 2012 American Association for Pediatric Ophthalmology and Strabismus. Published by Mosby, Inc. All rights reserved.
Uma Revisão dos Processos de Interação Oceano-Atmosfera em Regiões de Intenso Gradiente Termal do Oceano Atlântico Sul Baseada em Dados Observacionais

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Luciano Ponzi Pezzi

Full Text Available Resumo De um modo geral, a interação do oceano com a atmosfera em regiões de intensa atividade da mesoescala oceânica (frentes oceanográficas, meandros e turbilhões de escalas espaciais típicas de cerca de 100-500 km e escalas temporais de cerca de 2-3 meses apresenta uma correlação positiva entre a temperatura da superfície do mar (TSM e variáveis meteorológicas tais como a estabilidade da Camada Limite Atmosférica Marinha (CLAM, a intensidade do vento e os fluxos de calor, de momentum e de gases entre o oceano e a atmosfera. Isto sugere que o oceano força a atmosfera nas escalas espaciais e temporais relacionados à mesoescala oceânica. Principalmente com base em dados observacionais, porém não exclusivamente, este trabalho apresenta uma breve revisão científica sobre o impacto das estruturas de mesoescala presentes no Oceano Atlântico Sudoeste em alguns componentes do sistema acoplado oceano-atmosfera que, em certos aspectos, impactam o tempo e o clima da regiões continentais adjacentes na América do Sul. Inclui-se neste artigo também uma breve revisão do estado da arte do conhecimento sobre a parte oceânica da Zona de Convergência do Atlântico Sul. Este artigo apresenta as características oceanográficas gerais da área de estudo, incluindo alguns aspectos sobre a circulação do Atlântico Sul e a variabilidade. Lembrando do fato que o Atlântico Sudoeste e Sul são regiões consideradas como trilha de tempestade, este trabalho também discute os impactos dos gradientes de TSM do Oceano Atlântico Sul Ocidental sobre os sistemas atmosféricos transientes que atravessam frequentemente esta região. Além disso, o artigo discute novos indícios de que os processos oceanográficos que ocorrem no litoral sul do Brasil no inverno tem um forte impacto sobre a modulação CLAM sobre a plataforma continental do sul do Brasil. O artigo aponta também índicos passados e presentes que os processos ecológicos causados pela
Similaridade florística das florestas superomontanas no domínio Atlântico, Brasil

OpenAIRE

Amanda Koche Marcon; Ana Carolina da Silva; Pedro Higuchi; Francieli de Fátima Missio; Tiago de Souza Ferreira; Bruna Salami; Angelica Dalla Rosa; Marco Antonio Bento; Fernando Buzzi Júnior

2014-01-01

Este estudo teve como objetivos avaliar a similaridade florística do componente arbóreo de 39 remanescentes de florestas superomontanas no domínio atlântico, Brasil, e analisar a influência de variáveis geográficas e climáticas sobre os padrões observados. Foi utilizada uma matriz binária de presença e ausência das espécies arbóreas compiladas dos 39 levantamentos florísticos e fitossociológicos. Para conhecer a relação da composição florística das áreas com variáveis ambientais e espaciais, ...
Turismo y Metabolismo Social: Efectos ambientales de la actividad turística en la región Atlántico/Caribe. 1970-2011

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Edgar Eduardo Blanco Obando

2015-11-01

Full Text Available Durante el período de estudio se evidencia que la actividad turística en la región Atlántico/Caribe mantuvo un metabolismo sustentable, debido a condiciones específicas que presentó la expansión del turismo en dicha región.
Flebotomíneo em fragmentos de Mata Atlântica na Região Metropolitana do Recife, PE

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Silva,Dílvia Ferreira; Vasconcelos,Simão Dias

2005-01-01

Foi realizada uma investigação sobre a distribuição da fauna flebotomínica em 4 fragmentos da Mata Atlântica na Região Metropolitana do Recife. Consistiu na captura de insetos adultos com auxilio de armadilhas luminosas CDC. 1.173 espécimes distribuídos em 11 espécies de Lutzomyia: Lutzomyia evandroi, Lutzomyia choti, Lutzomyia walkeri, Lutzomyia umbratilis, Lutzomyia brasiliensis, Lutzomyia sordellii, Lutzomyia claustrei, Lutzomyia wellcomei, Lutzomyia fluviatilis, Lutzomyia furcata e Lutzom...
Movement patterns of stream-dwelling fishes from Mata Atlântica, Southeast Brazil

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Rosana Mazzoni

2012-12-01

Full Text Available The identification of mechanisms of spatial-temporal variation, obtained from the quantification of natural populations, is a central topic of ecological research. Despite its importance to life-history theory, as well as to conservation and management of natural populations, no studies concerning movement patterns and home range of small stream-dwelling fishes from Brazilian rain forests are known. In the present study we aimed to describe the longitudinal pattern of long distance movement as well as local patterns of short movement (daily home-range of fishes from a Mata Atlântica stream from Southeast Brazil. We gathered information about movement dynamic in order to discuss the relationship between swimming ability, fish morphology and home range. Long distance movement data were obtained in a mark-recapture experiment held in the field between June and September - 2008, on five sites along the Ubatiba stream. For this study, we had one day to mark fishes, on June-19, and 14 events for recapture. Considering the ten species that inhabit the study area, our study showed that four species: Astyanax janeiroensis, Astyanax hastatus, Parotocinclus maculicauda and Pimelodella lateristriga, moved at least 6 000m in 60 days. The other six species did not present long distance movements, as they were recaptured in the same site 90 days after being marked. For short distance study, movement data were obtained in one mark-recapture experiment held in a 100m long site subdivided into five 20m stretches where fishes were marked with different elastomer colours. We marked 583 specimens that after recapture showed two groups of different movement patterns. The first group was called “Long Movement Group” and the second one was called “Short Movement Group”. The Long Movement Group showed, on average, 89.8% of moving fishes and 10.2% of non moving fishes, against 21.3% and 78.7%, respectively, for the Short Movement Group. It was concluded that
Evolución del potencial atlético en la provincia de Mendoza (Argentina durante los años 1973 - 2001 = The evolution of athletic potential in the province of Mendoza from 1973 to 2001

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Ana María Destefanis

2013-03-01

Full Text Available Estudio exploratorio descriptivo con diseño no experimental, longitudinal, retrospectivo que analiza los cambios producidos en el potencial atlético mendocino desde 1973 hasta 2001. Los resultados obtenidos por la aplicación de la prueba estadística “t” student, significativamente inferiores entre la media del potencial atlético entre el 2000-2001, respecto de la década del 80 (prueba “t” 80/00 = 0,0423. No sucedió lo mismo al compararlos con las décadas del 70 y 90 que registraron entre sí valores similares en sus rendimientos atléticos (“t” 70/00 = 0,3995 y “t” 90/00 = 0,2013. Se concluyó que la diferencia significativa en el rendimiento atlético provincial se produjo al comparar la década del 80 con los años 2000 y 2001. Por lo tanto se rechazó la Hi y se aceptó la H alternativa. Se midieron las variables que influyeron sobre la evolución de este potencial, concluyendo que su disminución tiene relación con el estado que presentan las pistas en uso, insuficientes elementos atléticos, escasa cantidad de profesores especialistas, déficit en la administración de recursos físicos y humanos de los responsables del atletismo federado y falta de proyectos que canalicen la cantidad de jóvenes que compiten en instancias escolares y no ingresan al circuito federado.-------------------------------------------------------------------------Descriptive exploratory study with non experimental longitudinal retrospective design that analyzes the changes in the athletic potential of Mendoza’s population from 1973 to 2001. The results obtained by the application of the "t" student statistic test are significantly lower for the average athletic potential between 2000 and 2001, compared with the decade of the 80s (t-test 80/00 = 0.0423. It was not the same when compared to the decades of 1970 and 1990, which showed similar values to each other in their athletic performance ("t" 70/00 = 0.3995 and t = 0.2013 90/00. The
Análisis comparativo entre las cadenas productivas del sector textil-confecciones de la provincia de Jiangsu-China y el departamento del Atlántico-Colombia Comparative analysis between the chain of textile-apparelin of Jiangsu Province in China and the department of the Atlántico-Colombia

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Hugo José Mercado Cervera

2011-12-01

Full Text Available En este artículo de investigación se presentan los resultados referentes al análisis comparativo de las cadenas productivas del sector textil-confecciones de la provincia de Jiangsu-China y el departamento del Atlántico-Colombia, identificando inicialmente las diferentes variables y categorías asociadas con las cadenas productivas, seguido de un análisis comparativo utilizando modelos de distritos industriales, modelos clúster y redes empresariales, lo que finalmente permitió establecer las diferencias de producción existentes entre las cadenas productivas del sector textil-confecciones del departamento del Atlántico y el de la provincia de Jiangsu en la República China, dos regiones que, aunque disímiles en muchos aspectos, muestran algunos puntos parecidos en materia de desarrollo de textiles y confecciones, particularmente en lo que tiene que ver con infraestructura operativa y formación de recurso humano. La evaluación de estas diferencias permitió establecer estrategias y lineamientos que pueden generar efectos positivos vía el mejoramiento de la competitividad y establecer mejores estrategias para la competencia.In this research paper presents the results concerning the comparative analysis of the textile production chain-garment of Jiangsu Province, China and the Department of Atlántico, Colombia, initially identifying the different variables and categories associated with the production chains followed by a comparative analysis using models of industrial districts, cluster models and enterprise networks, which eventually led to establishing the differences in production between production chains in the textile-clothing sector of the Atlantic Department and Jiangsu Province in the Republic China, two regions that, although dissimilar in many respects, displays some similarities in the development of textiles and garments, particularly as it has to do with operational infrastructure and human resource training. The
Briófitas: estado do conhecimento e vulnerabilidade na Floresta Atlântica Nordestina

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Mercia Patricia Pereira Silva

2014-10-01

Full Text Available Com ênfase na Floresta Atlântica Nordestina, é fornecido um diagnóstico do estado da arte do conhecimento sobre a brioflora e, para os últimos dez anos, uma análise por área temática da briologia, estado da região, Instituição executora dos autores e gargalos de conhecimento. No período analisado, foram publicados 60 artigos em periódicos nacionais e internacionais, sendo que a maioria enfoca a linha de pesquisa Florística e Taxonomia, com destaque para o estado da Bahia que apresenta mais de 50% da produção desta linha. A consolidação deste conhecimento pode ser atribuída, em grande parte, à existência de pesquisadores e de Programas de Pós-graduação atuantes na região. A brioflora regional é composta por 788 spp., correspondendo a 58% do total conhecido para o Domínio Floresta Atlântica, onde novas espécies têm sido descritas e táxons vulneráveis, de distribuição rara e bioindicadores evidenciados. A Bahia é o estado de maior riqueza brioflorística, com 483 spp., seguida por Pernambuco, 323 spp. A vulnerabilidade da brioflora regional é acessada mediante endemismo, raridade de distribuição e caráter bioindicador de qualidade ambiental dos táxons. Modelos de distribuição potencial produzidos para vários desses táxons contribuem ao evidenciar novas áreas de exploração, a necessidade de proteção mais eficiente de habitats específicos e a criação de Unidades de Conservação. Para dirimir as lacunas ainda existentes no conhecimento fazem-se necessárias a continuidade de estudos, a intensificação na formação de recursos humanos e nas cooperações científicas.
Prospectiva estratégica, vigilancia tecnológica e inteligencia competitiva en el Instituto Tecnológico de Soledad Atlántico

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Jorge Isaac Lechuga Cardozo

2015-11-01

Full Text Available El caso presenta una re exión de lo que se entiende en el Instituto Tecnológico de Soledad Atlántico (ITSA por prospectiva estratégica, desde un acercamiento teórico conceptual apoyado por entrevistas. Se identi ca como problema la pérdida de competitividad de las organizaciones que no tienen un enfoque prospectivo. El caso tiene por objetivo describir un problema y abrir la discusión respecto a la importancia de la prospectiva estratégica, vigilancia tecnológica e inteligencia competitiva. Se concluye que el Instituto emprende una importante travesía hacia el futuro, pero no de manera ciega sino guiada por la luz poderosa del mañana que le permite iluminar las acciones del presente, la prospectiva estratégica determina el rumbo a lo que será su área de influencia entre los años 2015-2020, de cara a la acreditación y la excelencia institucional. This case show a re ection of what knows the Instituto Tecnológico de Soledad Atlántico (ITSA by Strategic foresight since a theoretical conceptual approach supported at interviews. Identifying like problem the loss of competitiveness of the organizations there are not prospective approach. The case aims to describe the problem and open discussion about the importance of strategic foresight, technological surveillance and competitive intelligence. We concluded that the Institute undertakes an important journey to the future, but not blindly, but guided by the powerful light of morning light that allows the actions of this, strategic foresight sets course to what will be its area of in uence between the years 2015-2020, in the face of accreditation and institutional excellence.
Los paisajes agrarios de España. La evolución de la nueva horticultura y cultivos especializados frente a la agricultura tradicional en la España Atlántica

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Ángel Miramontes

2014-06-01

Full Text Available En este trabajo se analiza el paisaje de una de las áreas agrarias españolas donde los cambios y evolución de una agricultura tradicional a una agricultura especializada han sido más significativos. Además se le presta atención a este paisaje agrario atlántico como patrimonio cultural, pues es producto de la explotación económica del potencial ecológico realizado por las distintas sociedades agrarias y grupos humanos que a lo largo de la historia han ocupado, aprovechado y organizado los campos. Este trabajo se apoya en material gráfico y fotográfico para mostrar el patrimonio agrario de la España Atlántica.
Fútbol, etnicidad y otredad: el Club Atlético Atlanta de Buenos Aires

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Raanan Rein

2014-06-01

While most historians would agree as to the centrality of soccer in Latin American societies, very little has been written on ethnicity and sports in such immigrant societies as Argentina and Brazil. This article focuses on the Club Atlético Atlanta, located in the neighborhood of Villa Crespo. Although populated by various ethnic groups, Villa Crespo has long been considered a Jewish neighborhood. During the second half of the 20th century, there has been a conspicuous Jewish presence among the fans, administrators and presidents of the Atlanta soccer club, to the extent that fans of rival teams often chant anti-Semitic slogans during matches. For the first immigrant generation, belonging to this club was a way of becoming Argentines. For the next generation, it was a way of maintaining ethnic Jewish identity, while for the third it has become a family tradition.
Persistent left superior vena cava with absent right superior vena cava: image findings

International Nuclear Information System (INIS)

Araujo Junior, Cyrillo Rodrigues de; Carvalho, Tarcisio Nunes; Fraguas Filho, Sergio Roberto; Costa, Marlos Augusto Bitencourt; Jacob, Beatriz Mahmud; Machado, Marcio Martins; Teixeira, Kim-Ir-Sen Santos; Ximenes, Carlos Alberto

2003-01-01

Persistent left superior vena cava absent right superior vena cava is a rare anomaly, with less than 150 cases reported in the literature. Congenitally persistent left superior vena cava is the most common variant of systemic venous return to the heart, resulting embryologically from failure of the left anterior cardinal vein to become obliterated. Its incidence varies from 0.3% in patients with otherwise normal heart to 4.3% in patients with congenital heart disease. In the majority of the patients, a right superior vena cava is present as well, but rarely the right anterior cardinal vein degenerates resulting in the absence of the normal right superior vena cava. The blood from the right side is carried by the persistent left superior vena cava to the right atrium through the coronary sinus. We report the case of a patient with a persistent left superior vena cava and absence of right superior vena cava identified by chance during a chest radiograph and computed tomography examination for investigation of chronic pulmonary obstructive disease. The patient had no congenital heart disease and the blood from the right side was drained by the persistent left superior vena cava into the right atrium through the coronary sinus. (author)
The discovery and geophysical response of the Atlántida Cu-Au porphyry deposit, Chile

Science.gov (United States)

Hope, Matthew; Andersson, Steve

2016-03-01

The discovery of the Atlántida Cu-Au-Mo porphyry deposit, which is unconformably overlain by 25-80 m of gravels, is a recent example of exploration success under cover in a traditional mining jurisdiction. Early acquisition of geophysics was a key tool in the discovery, and in later guiding further exploration drilling throughout the life of the project. Detailed review of the geophysical response of the deposit, with respect to the distribution of lithologies and alteration, coupled with their petrophysical properties has allowed full characterisation, despite no exposure at the surface of host rock nor porphyry-style mineralisation. Data acquired over the project include induced polarisation, magnetotellurics, ground and airborne magnetics, ground-based gravimetry, and petrophysical sampling. The distribution of the key geological features of the deposit has been inferred via acquisition of petrophysical properties and interpretation of surface geophysical datasets. Magnetic susceptibility is influenced strongly by both alteration and primary lithology, whilst density variations are dominated by primary lithological control. Several studies have shown that electrical properties may map the footprint of the hydrothermal system and associated mineralisation, via a combination of chargeability and resistivity. These properties are observed in geophysical datasets acquired at surface and allow further targeting and sterilisation at the deposit and project scale. By understanding these geophysical characteristics in a geological context, these data can be used to infer distribution of lithological units, depth to exploration targets and the potential for high grade mineralisation. Future exploration will likely be increasingly reliant on the understanding of the surface manifestations of buried deposits in remotely acquired data. This review summarises the application and results of these principles at the Atlántida project of northern Chile. Geophysical data can be
Veia cava superior esquerda anômala com ausência de veia cava superior direita: achados de imagem Persistent left superior vena cava with absent right superior vena cava: image findings

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Cyrillo Rodrigues de Araújo Júnior

2003-10-01

Full Text Available A persistência da veia cava superior esquerda com ausência da veia cava superior direita é uma anomalia rara, com menos de 150 casos descritos na literatura. A não-obliteração e regressão da veia cardinal anterior esquerda durante o desenvolvimento embriológico promove uma variação sistêmica de retorno venoso ao coração, com persistência da veia cava superior esquerda. Sua incidência varia de 0,3% em pacientes sem alterações cardíacas congênitas concomitantes a 4,3% naqueles com cardiopatias. Na maioria das vezes coexiste a veia cava superior direita, porém se houver regressão e degeneração da veia cardinal anterior direita, implicará a sua ausência e a drenagem venosa para o coração será feita pela veia cava superior esquerda ao átrio direito, através do seio coronariano. Mostramos um caso de um paciente submetido a radiografia de tórax e tomografia computadorizada para avaliação de doença pulmonar obstrutiva crônica, tendo como achado a persistência da veia cava superior esquerda com ausência da direita, sem qualquer cardiopatia associada e com a drenagem cardíaca sendo feita, através do seio coronariano, para o átrio direito.Persistent left superior vena cava with absent right superior vena cava is a rare anomaly, with less than 150 cases reported in the literature. Congenitally persistent left superior vena cava is the most common variant of systemic venous return to the heart, resulting embryologically from failure of the left anterior cardinal vein to become obliterated. Its incidence varies from 0.3% in patients with otherwise normal heart to 4.3% in patients with congenital heart disease. In the majority of the patients, a right superior vena cava is present as well, but rarely the right anterior cardinal vein degenerates resulting in the absence of the normal right superior vena cava. The blood from the right side is carried by the persistent left superior vena cava to the right atrium through the
Detection of adult T-cell leukemia virus (ATLV) bearing lymphocytes in concentrated red blood cells derived from ATL associated antibody (ATLA-Ab) positive donors.

Science.gov (United States)

Morishima, Y; Ohya, K; Ueda, R; Fukuda, T

1986-01-01

Adult T cell leukemia associated antibody (ATLA-Ab) positive persons were screened by indirect immunofluorescence (IF) testing. Their lymphocytes were collected from concentrated red blood cells (CRC), and cultured in vitro with and without phytohemagglutinin (PHA) for 10 days. The expression of ATL virus (ATLV) positive lymphocytes during the in vitro culture was then analyzed by IF assay using mouse monoclonal antibody ATL-19 reactive to p19 core protein of ATLV. 97% of ATLA-Ab positive CRC (36 cases) demonstrated ATLV positive lymphocytes after being cultured for more than 10 days with PHA, whereas, none of ATLA-Ab negative CRC (22 cases) demonstrated ATLV positive lymphocytes. All of the 10 ATLA-Ab positive CRC that were stored for 2, 4, and 7 days contained lymphocytes which expressed ATLV after in vitro culture, while 7 of 10 CRC stored for 14 days and only 1 of 10 CRCs stored for 20 days, expressed ATLV positive lymphocytes. This data indicates that almost all of the ATLA-Ab positive blood contained ATLV positive lymphocytes, and that the in vitro appearance of these ATLV positive lymphocytes was reduced by storing the CRC for more than 14 days.
Detecção de proteínas imunorreativas de Rickettsia sp. cepa Mata Atlântica

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Caroline S. Oliveira

Full Text Available RESUMO: A Febre Maculosa Brasileira (FMB é uma doença infecciosa, transmitida por carrapatos ao homem. Uma nova riquetsiose humana foi descrita como causadora de Febre Maculosa no Estado de São Paulo, sendo denominada de Rickettsia sp. cepa Mata Atlântica. O presente trabalho teve como objetivo detectar e identificar proteínas com potencial de estimular o sistema imune de hospedeiro mamífero, desta nova cepa descrita. Para tanto, foi realizado a extração proteica total de Rickettsia sp. cepa Mata Atlântica. As proteínas extraídas foram fracionadas por eletroforese. As bandas proteicas foram transferidas para membranas de nitrocelulose por migração elétrica e submetidas à técnica de Western-blot, para detecção proteica. Ao todo sete proteínas imunorreativas foram detectadas. Duas proteínas apresentaram maior abundancia, com peso molecular, de 200 e 130 kDa respectivamente. Através da comparação de mapas proteômicos existentes e pelo peso molecular que estas proteínas apresentaram, sugere-se que as duas proteínas detectadas representem rOmpA (200 kDa e rOmpB (130 kDa. As demais proteínas detectadas apresentaram menor ocorrência e peso molecular inferior a 78 kDa, podendo representar membros da família de antígenos de superfície celular (Sca - Surface cell antigen. As proteínas detectadas poderão servir como base de estudo na elaboração de métodos diagnósticos sensíveis e específicos, no desenvolvimento de vacinas, além de possibilitarem novos estudos para terapias mais eficazes.
Moluscos Poliplacóforos del litoral atlántico del sur de la Península Ibérica

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Carmona Zalvide, M. P.

2000-12-01

Full Text Available In this paper, an updated check-list of the polyplacophoran species from Sagres (Portugal to Strait of Gibraltar is present. Twenty taxa are recorded in this area: Lepidopleurus cajetanus, Leptochiton cancellatus, Leptochiton algesirensis, Leptochiton scabridus, Callochiton septemvalvis, Callochiton euplaeae, Lepidochitona cinerea, Lepidochitona corrugata, Lepidochitona canariensis, Lepidochitona monterosatoi, Lepidochitona kaasi, Lepidochitona severianoi, Chaetopleura angulata, Ischnochiton rissoi, Chiton olivaceus, Chiton corallinus, Chiton phaesolinus, Acanthochitona fascicularis and Acanthochitona crinita. From these species, Lepidochitona canariensis, L simrothi, Callochiton septemvalvis and Lepidochitona monterosatoi amplify their geographical distribution to Southern Atlantic coast of southern Iberian Peninsula.

Se aporta el catálogo de los Moluscos Poliplacóforos de las costas atlánticas del sur de la Península Ibérica, desde Sagres (Portugal hasta Gibraltar. Se cita un total de 20 taxones (Lepidopleurus cajetanus, Leptochiton cancellatus, Leptochiton algesirensis, Leptochiton scabridus, Callochiton septemvalvis, Callochiton euplaeae, Lepidochitona cinerea, Lepidochitona corrugata, Lepidochitona canariensis, Lepidochitona monterosatoi, Lepidochitona kaasi, Lepidochitona severianoi, Chaetopleura angulata, Ischnochiton rissoi, Chiton olivaceus, Chiton corallinus, Chiton phaesolinus, Acanthochitona fascicularis y Acanthochitona crinita todos ellos pertenecientes al dominio litoral. La captura de Lepidochitona canariensis y L. simrothi en aguas atlánticas ibéricas constituye la primera cita para el suratlántico ibérico. A su vez se amplía la distribución a esta zona de Callochiton septemvalvis y de Lepidochitona monterosatoi.
La Región Autónoma del Atlántico Norte de Nicaragua: lo que no queremos ver

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Mauro Rodríguez Peralta

2011-06-01

Full Text Available Una región conflictiva, históricamente relegada, multicultural, con problemas estructurales, pero con intención de cambio, de lucha, de reivindicación, y de pelear por sus derechos: la Costa Atlántica de Nicaragua. Nuestra mirada gira hacia una de las regiones más desfavorecidas de Latinoamérica con la intención de descifrar sus costuras en toda su complejidad, que no es poca. Caminamos hacia una zona con sus propias y distintas identidades, que conviven y buscan su espacio teniendo en cuenta que no son esencias residuales, estáticas o ancladas en el pasado. Todo lo contrario, nos topamos con entidades dinámicas y en constante redefinición y construcción.Palabras clave: Nicaragua, Región Atlántico Norte, Cooperación al Desarrollo___________________________Abstract:It is a controversial region, historically left out, multicultural, with structural problems, but with the intention of change, of fight and recognition of their rights: the Atlantic Cost of Nicaragua. Our look turns into one of the most underprivileged regions of Latin America with the purpose of figure out the seam in all it complexity, that is a lot. We are walking toward to a zone with its own and different identities, that lives together and searches the space considering that these identities aren?t residuals or static essence, anchored in the past. Quite the opposite, we run into dynamic entities, in a constant redefinition and construction.Keywords: Nicaragua, North Atlantic Region, coperation development
Estrutura de taxocenose de lagartos em um fragmento de floresta atlântica no nordeste do Brasil

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Laranjeiras, Daniel Orsi

2012-01-01

Foi investigada a contribuição dos fatores ecológicos e históricos, na determinação dos padrões de estruturação da taxocenose de lagartos de um fragmento de floresta atlântica, analisando parâmetros de utilização do espaço, composição da dieta e morfometria das espécies. A coleta dos lagartos foi realizada através da utilização de armadilhas e de procura visual ativa. Foram registradas 16 espécies pertencentes a 8 famílias. A análise de componentes principais revelou um agrupamento no espaço ...

Diseño de un instrumento musical de viento a partir de la gaita hembra de la costa atlántica colombiana

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Rincón Gómez, Ana María; Mesa Trujillo, Daniel

2007-01-01

Los instrumentos musicales autóctonos de la costa atlántica, así como de cualquier región Colombiana, son un importante legado de nuestros antepasados. Los conocimientos acerca de su elaboración y su interpretación se han ido transmitiendo a través de las generaciones, conservando su tradición. Muchos de los procesos de fabricación de estos instrumentos no han sido industrializados y siguen siendo netamente artesanales.
Movement patterns of stream-dwelling fishes from Mata Atlântica, Southeast Brazil.

Science.gov (United States)

Mazzoni, Rosana; Iglesias-Rios, Ricardo

2012-12-01

The identification of mechanisms of spatial-temporal variation, obtained from the quantification of natural populations, is a central topic of ecological research. Despite its importance to life-history theory, as well as to conservation and management of natural populations, no studies concerning movement patterns and home range of small stream-dwelling fishes from Brazilian rain forests are known. In the present study we aimed to describe the longitudinal pattern of long distance movement as well as local patterns of short movement (daily home-range) of fishes from a Mata Atlântica stream from Southeast Brazil. We gathered information about movement dynamic in order to discuss the relationship between swimming ability, fish morphology and home range. Long distance movement data were obtained in a mark-recapture experiment held in the field between June and September - 2008, on five sites along the Ubatiba stream. For this study, we had one day to mark fishes, on June-19, and 14 events for recapture. Considering the ten species that inhabit the study area, our study showed that four species: Astyanax janeiroensis, Astyanax hastatus, Parotocinclus maculicauda and Pimelodella lateristriga, moved at least 6 000m in 60 days. The other six species did not present long distance movements, as they were recaptured in the same site 90 days after being marked. For short distance study, movement data were obtained in one mark-recapture experiment held in a 100m long site subdivided into five 20m stretches where fishes were marked with different elastomer colours. We marked 583 specimens that after recapture showed two groups of different movement patterns. The first group was called "Long Movement Group" and the second one was called "Short Movement Group". The Long Movement Group showed, on average, 89.8% of moving fishes and 10.2% of non moving fishes, against 21.3% and 78.7%, respectively, for the Short Movement Group. It was concluded that fish movement could explain
Movement patterns of stream-dwelling fishes from Mata Atlântica, Southeast Brazil

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Rosana Mazzoni

2012-12-01

Full Text Available The identification of mechanisms of spatial-temporal variation, obtained from the quantification of natural populations, is a central topic of ecological research. Despite its importance to life-history theory, as well as to conservation and management of natural populations, no studies concerning movement patterns and home range of small stream-dwelling fishes from Brazilian rain forests are known. In the present study we aimed to describe the longitudinal pattern of long distance movement as well as local patterns of short movement (daily home-range of fishes from a Mata Atlântica stream from Southeast Brazil. We gathered information about movement dynamic in order to discuss the relationship between swimming ability, fish morphology and home range. Long distance movement data were obtained in a mark-recapture experiment held in the field between June and September - 2008, on five sites along the Ubatiba stream. For this study, we had one day to mark fishes, on June-19, and 14 events for recapture. Considering the ten species that inhabit the study area, our study showed that four species: Astyanax janeiroensis, Astyanax hastatus, Parotocinclus maculicauda and Pimelodella lateristriga, moved at least 6 000m in 60 days. The other six species did not present long distance movements, as they were recaptured in the same site 90 days after being marked. For short distance study, movement data were obtained in one mark-recapture experiment held in a 100m long site subdivided into five 20m stretches where fishes were marked with different elastomer colours. We marked 583 specimens that after recapture showed two groups of different movement patterns. The first group was called “Long Movement Group” and the second one was called “Short Movement Group”. The Long Movement Group showed, on average, 89.8% of moving fishes and 10.2% of non moving fishes, against 21.3% and 78.7%, respectively, for the Short Movement Group. It was concluded that
Para além do Atlântico Negro: problematizações sobre antirracismo e transnacionalismo no Brasil (1978-2010 = Beyond the Black Atlantic problematizations about antiracism and transnationalism in Brazil (1978-2010

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Trapp, Rafael Petry

2012-01-01

Full Text Available A partir da Conferência de Durban, em 2001, os movimentos antirracismo no Brasil sofreram significativa reestruturação, pois a participação do país nessa conferência propiciou uma nova perspectiva de ação política. Desde o final da década de 1970, o Movimento Negro tem exercido forte influência nas lutas antirracistas, ao adotar uma política não apenas denunciadora do racismo, mas propositiva, apontando para a urgência da revisão das posturas do Estado frente à chamada questão racial. Com a Conferência de Durban, o Brasil passou a se inserir no quadro transnacional do antirracismo, instituindo-se politicamente no espaço do Atlântico Negro, conceito de Paul Gilroy largamente utilizado para pensar o trânsito do pensamento intelectual afrodescendente no eixo África-América-Europa. Ao problematizar o Brasil no âmbito do Atlântico Negro, inquirimos as especificidades das relações étnicas na formação histórica do Brasil, que podem tensionar a utilização dessa categoria no contexto brasileiro. Durban, assim como o Atlântico Negro, instituem o internacionalismo no antirracismo no Brasil, provocando um debate sobre o particularismo da história nacional e o transnacionalismo
Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear

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Marcelo Novelino Simão

Full Text Available Abstract Objective: The objective of this study was to determine the incidence of a "meniscoid" superior labrum. Materials and Methods: This was a retrospective analysis of 582 magnetic resonance imaging examinations of shoulders. Of those 582 examinations, 110 were excluded, for a variety of reasons, and the final analysis therefore included 472 cases. Consensus readings were performed by three musculoskeletal radiologists using specific criteria to diagnose meniscoid labra. Results: A meniscoid superior labrum was identified in 48 (10.2% of the 472 cases evaluated. Arthroscopic proof was available in 21 cases (43.8%. In 10 (47.6% of those 21 cases, the operative report did not include the mention a superior labral tear, thus suggesting the presence of a meniscoid labrum. In only one of those cases were there specific comments about a mobile superior labrum (i.e., meniscoid labrum. In the remaining 11 (52.4%, surgical correlation demonstrated superior labral tears. Conclusion: A meniscoid superior labrum is not an infrequent finding. Depending upon assumptions and the requirement of surgical proof, the prevalence of a meniscoid superior labrum in this study was between 2.1% (surgically proven and 4.8% (projected. However, superior labral tears are just as common and are often confused with meniscoid labra.
Lei da Mata Atlântica: Retrocesso ambiental

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Roberto Varjabedian

2010-01-01

Full Text Available A Lei Federal n.11.428/06 e o Decreto Federal n.6.660/08, quando comparados ao Decreto Federal n.750/93, contêm várias alterações ambientalmente nocivas, configurando um retrocesso para a proteção da Mata Atlântica. Quanto à Lei n.11.428, verifica-se, por exemplo, que o estágio médio de regeneração recebeu um tratamento distinto em relação à vegetação primária e em estágio avançado, tendo sua proteção desguarnecida; e que os artigos 30 e 31, associados aos artigos 11, 12 e 17, abrem novas possibilidades para supressão de vegetação nativa de florestas tanto em estágio avançado como em estágio médio de regeneração. O Decreto n.6.660 permite, por exemplo, a exploração de madeira e lenha em propriedades rurais sem controle dos órgãos competentes.The Federal Law n.11.428/06 and the Federal Decree n.6.660/08 compared to the Federal Decree n.750/93 contain some environmentally harmful flexibilities and changes, configuring a setback for the Atlantic Rainforest protection. In the Law n.11.428, it's verified, for example, a different treatment for Rainforest in intermediate stage of regeneration in relation to advanced stage or climax, and the Articles 30 and 31, associated with Articles 11, 12 and 17, open new possibilities for deforestation, both forest in an advanced stage, as in the intermediate stage of regeneration. The Decree n.6.660 allows, for example, the eventual exploration of timber and firewood in rural properties without control of the competent agencies.
Degradação ambiental em fragmento de Mata Atlântica: floresta urbana Mata do Janga em Paulista/PE

OpenAIRE

Oliveira, Paulo Cabral de

2015-01-01

A Mata do Janga é um fragmento de Mata Atlântica que se localiza na cidade do Paulista, município inserido na RMR (Região Metropolitana do Recife) capital do Estado de Pernambuco. Encontra-se protegida por lei como uma Unidade de Conservação (UC) estadual e parte dela constitui-se uma Reserva Ecológica e recategorizada como Floresta Urbana (FURB). Com uma área de 132,24 hectares, a mata vem sofrendo fortes pressões antrópicas. Em virtude de sua importância biológica objetivou-se compreender a...
Spatial vision is superior in musicians when memory plays a role.

Science.gov (United States)

Weiss, Atalia H; Biron, Tali; Lieder, Itay; Granot, Roni Y; Ahissar, Merav

2014-08-21

Musicians' perceptual advantage in the acoustic domain is well established. Recent studies show that musicians' verbal working memory is also superior. Additionally, some studies report that musicians' visuospatial skills are enhanced although others failed to find this enhancement. We now examined whether musicians' spatial vision is superior, and if so, whether this superiority reflects refined visual skills or a general superiority of working memory. We examined spatial frequency discrimination among musicians and nonmusician university students using two presentation conditions: simultaneous (spatial forced choice) and sequential (temporal forced choice). Musicians' performance was similar to that of nonmusicians in the simultaneous condition. However, their performance in the sequential condition was superior, suggesting an advantage only when stimuli need to be retained, i.e., working memory. Moreover, the two groups showed a different pattern of correlations: Musicians' visual thresholds were correlated, and neither was correlated with their verbal memory. By contrast, among nonmusicians, the visual thresholds were not correlated, but sequential thresholds were correlated with verbal memory scores, suggesting that a general working memory component limits their performance in this condition. We propose that musicians' superiority in spatial frequency discrimination reflects an advantage in a domain-general aspect of working memory rather than a general enhancement in spatial-visual skills. © 2014 ARVO.
Agenesia de cava superior associada a bloqueio atrioventricular de 3º grau Agenesis of the right superior vena cava associated with total heart block

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Gustavo J. Ventura Couto

2008-03-01

Full Text Available A persistência de veia cava superior esquerda com ausência da veia cava superior é uma anomalia rara, principalmente quando associada a bloqueio atrioventricular de 3º grau. Relatamos o caso de uma paciente, na qual durante implante de marca-passo definitivo, para a correção de bloqueio atrioventricular total, foi detectada presença de veia cava superior esquerda com suspeição de ausência de veia cava superior, o que levou ao emprego de técnica diferenciada para fixação do eletrodo ventricular. Para confirmação da provável agenesia, foram realizados diversos exames complementares de imagem, demonstrando-se a dificuldade no diagnóstico da síndrome aqui descrita.The superior left vena cava with the absent superior vena cava is a rare abnormality, especially when associated with total heart block. We report a case of a patient in which the presence of superior left vena cava and the absence of the superior vena cava was detected during the implantation of a pacemaker for the correction of a total heart block, which led us to use a different technique for the fixation of the ventricular electrode. To confirm the supposed absence, several image exams were made showing the difficulty on the diagnosis of the described syndrome.
Prensa literaria en Andalucía, RevistAtlántica de Poesía como paradigma de publicación multicultural (1991-1998

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Lic. Aurora Labio Bernal

1999-01-01

Full Text Available Para difundir ese mensaje universal que es la poesía nace en 1991 RevistAtlántica de poesía. Sus fundadores, José Ramón Ripoll y Jesús Fernández Palacios, inician desde Cádiz esta publicación en la que dan cabida a escritores de todo el mundo, contribuyendo desde sus páginas a conjugar todas las tendencias y estilos en un modelo de publicación multicultural.
Abelhas Euglossini (Apidae de áreas de Mata Atlântica: abundância, riqueza e aspectos biológicos Euglossine bees (Apidae from Atlantic Forest sites: abundance, richness, and biological aspects

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Rui Carlos Peruquetti

1999-01-01

Full Text Available Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804. At Viçosa, 10 species were sampled, E. nigrita was the predominant one. Methyl salicylate attracted no males at both sites, in spite of large numbers of species and individuals sampled using this bait in other regions. The majority of species and individuals were collected in the rainy season. Only 0,58% of sampled males carried orchid pollinia (Catasetum Richard, Cycnoches Lindley and Coryanthes Hook on their bodies. Emergence data of four species of Euglossa Latreille, 1802 reared from trap nests suggest that sex ratio in Euglossini is not a constant within the tribe. A list of 57 euglossine species now known to occur in Mata Atlântica are offered.
Waldenstrom macroglobulinemia involving the superior rectus muscle

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J.B. Hellman

2018-06-01

Full Text Available Purpose: We present the first reported case of Waldenstrom macroglobulinemia in the right superior rectus causing diplopia. Observations: A 72-year-old man with a 6-month history of untreated asymptomatic Waldenstrom macroglobulinemia presented with 2 years of diagonal binocular diplopia that was previously thought to be due to ocular myasthenia gravis. Examination showed mild right proptosis and right hypotropia, and MRI revealed a focal lesion of the right superior rectus muscle. Orbital biopsy was performed, and histopathology showed lymphoplasmacytic infiltration among the skeletal muscle fibers of the rectus muscle. Immunostaining confirmed a B-cell preponderance, along with more extensive staining for IgM than IgG, and in situ hybridization confirmed lambda restriction. These findings corresponded with those of his previous bone marrow biopsy, confirming Waldenstrom macroglobulinemia as the etiology for the extraocular muscle mass. Conclusions and Importance: Lymphoma of an extraocular muscle is a rare manifestation of orbital lymphoma, and the tumors are usually mucosa-associated lymphoid tissue (MALT lymphomas (i.e. extranodal marginal zone lymphomas. There are 4 previous reports of lymphoplasmacytic lymphoma of an extraocular muscle; however this is the first reported case of such a lesion in a patient with concurrent Waldenstrom macroglobulinemia at the time of diagnosis. Keywords: Waldenstrom's macroglobulinemia, Lymphoma, Superior rectus, Diplopia
Patrones temporales de comportamiento táctico en carreras atléticas de 5.000 metros

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Daniel Lapresa Ajamil

2012-09-01

Full Text Available El comportamiento táctico en carreras atléticas de fondo ha sido residualmente estudiado. En el presente trabajo, en el seno de la metodología observacional, se ha construido un instrumento de observación que permite detectar patrones temporales de comportamiento táctico –mediante el software Theme, versión 5.0.–, en el muestreo observacional correspondiente a las finales de: Campeonatos Mundiales París 2003 y Berlín 2009; Olimpiadas de Atenas 2004 y Pekín 2008; Campeonatos Europeos de Goteborg 2006 y Barcelona 2010, en la modalidad de 5000 metros –categoría masculina–. Los resultados obtenidos muestran pautas comportamentales relevantes, relativas, fundamentalmente, al ritmo de la prueba y a la interacción del atleta ganador con sus competidores.
The picture superiority effect in associative recognition.

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Hockley, William E

2008-10-01

The picture superiority effect has been well documented in tests of item recognition and recall. The present study shows that the picture superiority effect extends to associative recognition. In three experiments, students studied lists consisting of random pairs of concrete words and pairs of line drawings; then they discriminated between intact (old) and rearranged (new) pairs of words and pictures at test. The discrimination advantage for pictures over words was seen in a greater hit rate for intact picture pairs, but there was no difference in the false alarm rates for the two types of stimuli. That is, there was no mirror effect. The same pattern of results was found when the test pairs consisted of the verbal labels of the pictures shown at study (Experiment 4), indicating that the hit rate advantage for picture pairs represents an encoding benefit. The results have implications for theories of the picture superiority effect and models of associative recognition.
Sueño y asignación de tiempo entre los estudiantes universitarios: el caso de la Universidad del Atlántico

OpenAIRE

Trujillo Lora, Juan Carlos; Iglesias Pinedo, Wilman

2010-01-01

Un debate actual en la economía sostiene que el tiempo dedicado a dormir responde a incentivos económicos. En este artículo se investiga la demanda de sueño en una muestra de 88 estudiantes de pregrado de la Universidad del Atlántico en Barranquilla (Colombia). Se examina cómo estos estudiantes asignan su tiempo para diferentes actividades, qué factores determinan las horas que dedican a dormir y qué factores afectan su productividad asociada con su promedio académico. Los resultados revelan ...
Precipitação efetiva e interceptação das chuvas por floresta de Mata Atlântica em uma microbacia experimental em Cunha - São Paulo

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Arcova Francisco Carlos Soriano

2003-01-01

Full Text Available São apresentados os resultados de pesquisa que quantificaram a precipitação efetiva e a interceptação das chuvas pelo dossel da floresta secundária de Mata Atlântica na "microbacia experimental B", do Laboratório de Hidrologia Florestal Walter Emmerich, em Cunha-SP. No período de um ano foram medidos a precipitação no aberto, a precipitação interna e o escoamento pelo tronco das árvores, totalizando 54 coletas. Um pluviômetro em área aberta e 16 no interior da floresta foram utilizados para quantificação dos dois primeiros processos, respectivamente. Para determinação do escoamento pelo tronco foram instalados dispositivos de espuma de poliuretano em 38 árvores. A água interceptada foi estimada pela diferença entre a precipitação no aberto e a precipitação efetiva. Concluiu-se que, em média, 18,6% da precipitação foi interceptada pela floresta, retornando à atmosfera na forma de vapor. Um montante de 81,2% alcançou o piso como precipitação interna e apenas 0,2% como escoamento pelo tronco. Os fluxos de precipitação interna e escoamento pelo tronco foram maiores no período caracterizado como chuvoso. Os porcentuais de interceptação foram superiores no período pouco chuvoso.
El Caribe reflejado en el Carnaval de Cádiz con el Atlántico como espejo

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ANA MARÍA BARCELÓ CATALAYUD

2017-01-01

Full Text Available El carnaval es la fiesta más peculiar de Cádiz y una de las manifestaciones más singulares de su modalidad en el mundo. Un fenómeno que se basa principalmente en las coplas, en el ingenio de sus letras y en la variedad de las músicas, cada año nuevas y diferentes; el Carnaval de Cádiz se inspira en la vida real, en las imágenes arquetípicas de la tradición, el teatro y el cine, en leyendas, óperas o zarzuelas. Otra de sus especificidades es el disfraz, que en Cádiz se conoce como tipo, que es algo más que un conjunto de prendas: es la materialización del carácter representado por cada agrupación. La evolución del tipo, que está en relación directa con el tema de su repertorio, ha discurrido en paralelo a la sucesión de hechos reales, hitos literarios, artísticos, sociales, cinematográficos, televisivos y otros. El Carnaval de Cádiz ha ido adoptando estilos innovadores procedentes de su propia evolución y otros adquiridos de distintos carnavales. En este sentido, ha sido fundamental la situación geoestratégica de la ciudad, al sur de Europa y próxima a África, pero, sobre todo, de su puerto, nodo de comunicaciones marítimas entre las dos orillas del Atlántico. El intercambio de mercaderías y pasajeros acarrea la introducción de usos y costumbres y del propio carnaval, a través de los comerciantes genoveses que establecieron en la ciudad sus negocios, o los ritmos africanos aportados por los esclavos en su paso desde África hacia las nuevas tierras americanas. En el ir y venir por el océano Atlántico, las coplas regresaron con cadencias habaneras y otros compases antillanos que se sumaron a los cantes de la tierra. Aunque su aparición es muy anterior, fue la asunción de su organización a finales del siglo XIX, por parte de la autoridad municipal, la que deja huella documental de cómo esta fiesta ha ido conformando un estilo propio de Cádiz en el que las coplas, unión de letras rimadas con músicas, cada a
Herpetofauna em um fragmento de Floresta Atlântica no Estado da Paraíba, Região Nordeste do Brasil

OpenAIRE

Gindomar Gomes Santana; Washington L. S. Vieira; Gentil A. Pereira-Filho; Fagner R. Delfim; Yuri C. Lima; Kleber S. Vieira

2008-01-01

http://dx.doi.org/10.5007/2175-7925.2008v21n1p75A herpetofauna de um fragmento urbano de Floresta Atlântica foi estudada quanto à riqueza de espéciese à utilização do habitat. A coleta de espécimes foi realizada através de procura visual limitada por tempo e armadilhas de interceptação e queda. Foram registradas quatorze espécies de anfíbios anuros pertencentes às famílias Bufonidae, Brachycephalidae, Hylidae, Leptodactylidae, Leiuperidae, Microhylidae e Ranidae. Os répteis foram representad...
Role of N-acetylglucosaminidase and N-acetylmuramidase activities in Enterococcus faecalis peptidoglycan metabolism.

Science.gov (United States)

Mesnage, Stéphane; Chau, Françoise; Dubost, Lionel; Arthur, Michel

2008-07-11

Identification of the full complement of peptidoglycan hydrolases detected by zymogram in Enterococcus faecalis extracts led to the characterization of two novel hydrolases that we named AtlB and AtlC. Both enzymes have a similar modular organization comprising a central catalytic domain fused to two LysM peptidoglycan-binding modules. AtlB and AtlC displayed N-acetylmuramidase activity, as demonstrated by tandem mass spectrometry analyses of peptidoglycan fragments generated by the purified enzymes. The genes encoding AtlB and AtlC were deleted either alone or in combination with the gene encoding AtlA, a previously described N-acetylglucosaminidase. No autolytic activity was detected in the triple mutant indicating that AtlA, AtlB, and AtlC account for the major hydrolytic activities in E. faecalis. Analysis of cell size distribution by flow cytometry showed that deletion of atlA resulted in the formation of long chains. Thus, AtlA digests the septum and is required for cell separation after cell division. We found that AtlB could act as a surrogate for AtlA, although the enzyme was less efficient at septum digestion. Deletion of atlC had no impact on cell morphology. Labeling of the peptidoglycan with N-[14C]acetylglucosamine revealed an unusually slow turnover as compared with model organisms, almost completely dependent upon the combined activities of AtlA and AtlB. In contrast to atlA, the atlB and atlC genes are located in putative prophages. Because AtlB and AtlC were produced in the absence of cell lysis or production of phage progeny, these enzymes may have been hijacked by E. faecalis to contribute to peptidoglycan metabolism.
Designing Pareto-superior demand-response rate options

International Nuclear Information System (INIS)

Horowitz, I.; Woo, C.K.

2006-01-01

We explore three voluntary service options-real-time pricing, time-of-use pricing, and curtailable/interruptible service-that a local distribution company might offer its customers in order to encourage them to alter their electricity usage in response to changes in the electricity-spot-market price. These options are simple and practical, and make minimal information demands. We show that each of the options is Pareto-superior ex ante, in that it benefits both the participants and the company offering it, while not affecting the non-participants. The options are shown to be Pareto-superior ex post as well, except under certain exceptional circumstances. (author)

O Brasil, a África e o Atlântico no século XIX

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Alberto da Costa e Silva

1994-08-01

Full Text Available Até o último quartel do século XIX, a presença européia na África reduzia-se a poucos pontos litorâneos. Em toda a sua grande extensão, a África era governada por africanos. O continente dividia-se em impérios, reinos e cidades-estado. Do lado do Atlântico, havia intensas relações entre essas estruturas políticas e o Brasil. O que se passava num lado do oceano repercutia no outro. A cruzada anti-escravagista desembocou num novo imperialismo europeu. A ocupação da África pelas potências européias não logrou destruir muitas dessas estruturas de poder, algumas das quais serviram de intermediárias entre o colonizador e os africanos enquanto que outras persistiram na clandestinidade. A ocupação colonial ocasionou o quase completo corte das antigas e fortes relações com o Brasil.
Writing superiority in cued recall

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Carina eFueller

2013-10-01

Full Text Available In list learning paradigms with free recall, written recall has been found to be less susceptible to intrusions of related concepts than spoken recall when the list items had been visually presented. This effect has been ascribed to the use of stored orthographic representations from the study phase during written recall (Kellogg, 2001. In other memory retrieval paradigms, either better recall for modality-congruent items or an input-independent writing superiority effect have been found (Grabowski, 2005. In a series of four experiments using a paired associate (PA learning paradigm we tested (a whether output modality effects on verbal recall can be replicated in a paradigm that does not involve the rejection of semantically related intrusion words, (b whether a possible superiority for written recall was due to a slower response onset for writing as compared to speaking in immediate recall, and (c whether the performance in PA word recall was correlated with performance in an additional episodic memory task. We found better written recall in the first half of the recall phase, irrespective of the modality in which the material was presented upon encoding. An explanation based on longer response latencies for writing and hence more time for retrieval could be ruled out by showing that the effect persisted in delayed response versions of the task. Although there was some evidence that stored additional episodic information may contribute to the successful retrieval of associate words, this evidence was only found in the immediate response experiments and hence is most likely independent from the observed output modality effect. In sum, our results from a PA learning paradigm suggest that superior performance for written versus spoken recall cannot be (solely explained in terms of additional access to stored orthographic representations from the encoding phase. Our findings rather suggest a general writing-superiority effect at the time of memory
El asentamiento al aire libre de La Fontanilla (Conil de la Frontera, Cádiz. Nuevas aportaciones para el estudio de las comunidades de cazadores-recolectores especializados en la banda atlántica de Cádiz

Directory of Open Access Journals (Sweden)

José RAMOS MUÑOZ

2009-12-01

Full Text Available RESUMEN: Presentamos de forma sucinta el asentamiento de La Fontanilla en la Banda Atlántica de Cádiz. Analizamos la estratigrafía del depósito y su posición geomorfológica. Aportamos un balance de la tecnología y tipología de las industrias líticas que permiten una definición en el tecnocomplejo Solutrense Superior y Solutreogravetiense. Indicamos la fauna asociada y planteamos un enmarque histórico con los asentamientos sincrónicos. Trabajamos en la definición de los modos de vida y de trabajo y en la fijación de movilidades organizadas en el territorio del suroeste peninsular de las comunidades de cazadores-recolectores especializados.ABSTRACT: In this work, we make a summary of the settlement of «La Fontanilla» in the Atlantic Band of Cádiz. Its stratigraphy and its geomorfology are analized to present a balance of the technology and typology in the lithic industries, which allow us to give a definition in the Solutreogravettian. Also we study bones and expound a historical context with the synchronic settlements. We work to define ways of life and ways of work in the huntered-gathered organized movilities in the South-West of Spain.
A ambos lados del Atlántico con García Márquez

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Conrado Zuluaga

2014-03-01

Full Text Available El español, lengua materna de unos quinientos millones de personas en veintiún países, es uno de los idiomas más hablados en el mundo y, aunque conserva una considerable homogeneidad, presenta una gran variedad de acentos y vocablos. Si bien los hispanohablantes de ambos lados del Atlántico comparten cerca del noventa por ciento del vocabulario, los regionalismos, modismos o coloquialismos locales prestan a confusión, y es posible que una misma palabra tenga numerosos y diferentes significados, según el país o la región en donde se emplean. En su discurso inaugural del Primer Congreso Internacional de la Lengua Española, en Zacatecas (1997, titulado Botella al mar para el dios de las palabras, García Márquez afirma que “el español tiene un ámbito propio de 19 millones de kilómetros cuadrados [...] Con razón un maestro de letras hispánicas en Estados Unidos ha dicho que sus horas de clase se le van en servir de intérprete entre latinoamericanos de distintos países”.
MAXILLOFACIAL TRAUMA MANAGEMENT IN POLYTRAUMATIZED PATIENTS – THE USE OF ADVANCED TRAUMA LIFE SUPPORT (ATLS PRINCIPLES.

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Elitsa G. Deliverska

2013-03-01

Full Text Available Management of the multiply injured patient requires a co-ordinated multi-disciplinary approach in order to optimise patients’ outcome. A working knowledge of the sort of problems these patients encounter is therefore vital to ensure that life-threatening injuries are recognised and treated in a timely pattern and that more minor associated injuries are not omitted. This article outlines the management of polytraumatized patients using the Advanced Trauma Life Support (ATLS principles and highlights the areas of specific involvement of the engaged medical team. Advanced Trauma Life Support is generally regarded as the gold standard and is founded on a number of well known principles, but strict adherence to protocols may have its drawbacks when facial trauma co-exists. These can arise in the presence of either major or minor facial injuries, and oral and maxillofacial surgeons need to be aware of the potential problems.
Superior facet syndrome

International Nuclear Information System (INIS)

Kubo, Yoshichika; Igarashi, Seishi; Koyama, Tsunemaro

1985-01-01

Sciatica caused by root entrapment in the lateral recess was named superior facet syndrome by Epstein in 1972. Few reports on this subject based on large numbers of cases have been documented to date. Of the patients with sciatica, 32 patients were diagnosed to have root entrapment at the lateral recess L 5 or/and S 1 lumbar spine. Out of 32 patients, 20 patients were operated on and the lateral entrapment was recognized in all of surgical cases. Neuroradiological findings, especially of metrizamide CT (met. CT), were documented in detail. Thirty two patients were classified in three types according to radiological findings. They were congenital or developmental, degenerative, and combined type, respectively, Fourteen cases belonged to the congenital type, 13 to the degenerative and 5 to the combined type. Each group had the mean ages of 23.4, 53.8, and 36.8 years old, respectively. Of 32 cases the entrapment occured in 47 L 5 roots and 11 S 1 roots. There was no remarkable laterality. In operation the unroofing of the lateral recess were done and the sciatica subsided postoperatively in all of surgical cases. Met. CT revealed extreme medial protrusion of the superior articular joint in 18 of 24 cases(75%) and none filling of the root in the lateral recess in 21 of 24 cases (87.5%). In the degenerative type, met. CT showed some degenerative changes that were hypertrophy or deformity of the articular joints and spur formation of the vertebral body. In contrast to met. CT, metrizamide myelography revealed only slight changes, which were poor filling of the root before it turned out the pedicle of lateral compression of the root. In plain films or lumbar spine articular joints at Lsub(4/5) were formed in coronal plane in 69% of cases of the L 5 root entrapment. Met. CT using ReView technique was of great diagnostic value in superior facet syndrome. (author)
Alternating-time temporal logic with finite-memory strategies

DEFF Research Database (Denmark)

Vester, Steen

2013-01-01

on finite-memory strategies. One where the memory size allowed is bounded and one where the memory size is unbounded (but must be finite). This is motivated by the high complexity of model-checking with perfect recall semantics and the severe limitations of memoryless strategies. We show that both types...... of semantics introduced are different from perfect recall and memoryless semantics and next focus on the decidability and complexity of model-checking in both complete and incomplete information games for ATL/ATL*. In particular, we show that the complexity of model-checking with bounded-memory semantics...... is Delta_2p-complete for ATL and PSPACE-complete for ATL* in incomplete information games just as in the memoryless case. We also present a proof that ATL and ATL* model-checking is undecidable for n >= 3 players with finite-memory semantics in incomplete information games....
Tratamento da síndrome da veia cava superior Treatment of superior vena cava syndrome

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Luís Marcelo Inaco Cirino

2005-12-01

Full Text Available A veia cava superior é formada pela união das duas veias inominadas, direita e esquerda, e localiza-se no mediastino médio, à direita da artéria aorta e anteriormente à traquéia. A síndrome da veia cava superior representa um conjunto de sinais (dilatação das veias do pescoço, pletora facial, edema de membros superiores, cianose e sintomas (cefaléia, dispnéia, tosse, edema de membro superior, ortopnéia e disfagia decorrentes da obstrução do fluxo sanguíneo através da veia cava superior em direção ao átrio direito. A obstrução pode ser causada por compressão extrínseca, invasão tumoral, trombose ou por dificuldade do retorno venoso ao coração secundária a doenças intra-atriais ou intraluminais. Aproximadamente 73% a 97% dos casos de síndrome da veia cava superior ocorrem durante a evolução de processos malignos intratorácicos. A maioria dos pacientes com a síndrome secundária a neoplasias malignas é tratada sem necessidade de cirurgia, através de radioterapia ou quimioterapia, ou através da colocação de stents endoluminais. Quando a síndrome é de etiologia benigna, o tratamento é feito através de medidas clínicas (anticoagulação, elevação da cabeça, etc. ou, em casos refratários, através de angioplastia, colocação de stents endoluminais e cirurgia.The superior vena cava is formed by the union of the right and left brachiocephalic veins. It is located in the middle mediastinum, to the right of the aorta and anterior to the trachea. Superior vena cava syndrome consists of a group of signs (dilation of the veins in the neck, facial swelling, edema of the upper limbs, and cyanosis and symptoms (headache, dyspnea, cough, orthopnea and dysphagia caused by the obstruction of blood flow through the superior vena cava to the right atrium. This obstruction can be caused by extrinsic compression, tumor invasion or thrombosis. Such obstruction may also occur as a result of insufficient venous return
Superior mesenteric artery syndrome following initiation of cisplatin-containing chemotherapy: a case report

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Ushiki Atsuhito

2012-01-01

Full Text Available Abstract Introduction Superior mesenteric artery syndrome is a rare cause of upper intestinal obstruction resulting from compression of the duodenum by the superior mesenteric artery and abdominal aorta. Case presentation We describe a case of superior mesenteric artery syndrome in a 61-year-old Japanese man with non-small cell lung cancer who had been treated with cisplatin-containing chemotherapy and had lost 7 kg in weight. The diagnosis was confirmed by the typical findings of abdominal computed tomography showing distended stomach resulting from compression of the third portion of the duodenum and reduction of an aortomesenteric distance and aortomesenteric angle. Conclusions This case highlights the importance of considering the possibility of superior mesenteric artery syndrome in patients treated with chemotherapy, especially those presenting with a low body mass index and showing weight loss during chemotherapy.
A novel small molecule FL118 that selectively inhibits survivin, Mcl-1, XIAP and cIAP2 in a p53-independent manner, shows superior antitumor activity.

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Xiang Ling

Full Text Available Drug/radiation resistance to treatment and tumor relapse are major obstacles in identifying a cure for cancer. Development of novel agents that address these challenges would therefore be of the upmost importance in the fight against cancer. In this regard, studies show that the antiapoptotic protein survivin is a central molecule involved in both hurdles. Using cancer cell-based survivin-reporter systems (US 7,569,221 B2 via high throughput screening (HTS of compound libraries, followed by in vitro and in vivo analyses of HTS-derived hit-lead compounds, we identified a novel anticancer compound (designated FL118. FL118 shows structural similarity to irinotecan. However, while the inhibition of DNA topoisomerase 1 activity by FL118 was no better than the active form of irinotecan, SN-38 at 1 µM, FL118 effectively inhibited cancer cell growth at less than nM levels in a p53 status-independent manner. Moreover, FL118 selectively inhibited survivin promoter activity and gene expression also in a p53 status-independent manner. Although the survivin promoter-reporter system was used for the identification of FL118, our studies revealed that FL118 not only inhibits survivin expression but also selectively and independently inhibits three additional cancer-associated survival genes (Mcl-1, XIAP and cIAP2 in a p53 status-independent manner, while showing no inhibitory effects on control genes. Genetic silencing or overexpression of FL118 targets demonstrated a role for these targets in FL118's effects. Follow-up in vivo studies revealed that FL118 exhibits superior antitumor efficacy in human tumor xenograft models in comparison with irinotecan, topotecan, doxorubicin, 5-FU, gemcitabine, docetaxel, oxaliplatin, cytoxan and cisplatin, and a majority of mice treated with FL118 showed tumor regression with a weekly × 4 schedule. FL118 induced favorable body-weight-loss profiles (temporary and reversible and was able to eliminate large tumors. Together
Information Superiority through Data Warehousing

National Research Council Canada - National Science Library

Warner, Neil

2001-01-01

.... A precursor to a knowledge edge is Information Superiority. Within most current Command Support Systems minimal integration and fusion of data is undertaken to provide the basis of information superiority...
Dinâmica espaço-temporal em uma guilda de borboletas frugívoras no limite norte da Floresta Atlântica Nordestina

OpenAIRE

Barbosa, José Elieudo Dias

2009-01-01

Um dos hotspots da biodiversidade mundial, a Mata Atlântica encontra-se reduzida a apenas 7% de sua área original. Ainda assim, apresenta uma das mais ricas faunas de borboletas do mundo. Borboletas são usadas com freqüência em avaliação ambiental, pois mostram forte associação com plantas hospedeiras, microclima e padrões de disponibilidade de recursos, sendo bons indicadores de diversidade e integridade ambiental. Este trabalho descreve a diversidade, composição e riqueza de espécies de bor...
Plant Composition, Feeding Preferences and Abundance of Biblidinae (Lepidoptera: Nymphalidae) in a Tropical Dry Forest Fragment in the Department of Atlántico, Colombia

OpenAIRE

María Angélica Vargas-Zapata; Carlos José Boom-Urueta; Leidys Isabel Seña-Ramos; Alba Lucia Echeverry-Iglesias; Neis José Martínez Hernández

2015-01-01

Se analizó la variación espacio-temporal de la abundancia de las mariposas de la subfamilia Biblidinae (Lepidoptera: Nymphalidae) en un fragmento de Bs-T en la Reserva Campesina La Montaña (RCM), Atlántico, Colombia; desde enero hasta agosto de 2011. Se marcaron cuatro puntos dentro del área de estudio, donde se ubicaron trampas Van Someren–Rydon cebadas con calamar en descomposición, fruta fermentada y con una mezcla de los anteriores cebos. Adicionalmente, se realizó una caracterización de ...
Exploraciones arqueológicas en la Costa Atlántica y Valle del Magdalena: Sitios Precerámicos y Tipologías Líticas

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Correal Urrego Gonzalo

1977-06-01

Full Text Available El presente trabajo corresponde a una síntesis de los sitios Precerámicos descritos en el estudio "Exploraciones Arqueológicas en la Costa Atlántica y Valle del Magdalena", estudio en el cual son presentados en extenso (cinco tomos, junto con los hallazgos de industrias líticas, los resultados obtenidos en nuevos sitios cerámicos y arte rupestre en el país, junto con los datos geográficos, geológicos y etnohistóricos de las áreas investigadas.
The picture superiority effect in patients with Alzheimer's disease and mild cognitive impairment.

Science.gov (United States)

Ally, Brandon A; Gold, Carl A; Budson, Andrew E

2009-01-01

The fact that pictures are better remembered than words has been reported in the literature for over 30 years. While this picture superiority effect has been consistently found in healthy young and older adults, no study has directly evaluated the presence of the effect in patients with Alzheimer's disease (AD) or mild cognitive impairment (MCI). Clinical observations have indicated that pictures enhance memory in these patients, suggesting that the picture superiority effect may be intact. However, several studies have reported visual processing impairments in AD and MCI patients which might diminish the picture superiority effect. Using a recognition memory paradigm, we tested memory for pictures versus words in these patients. The results showed that the picture superiority effect is intact, and that these patients showed a similar benefit to healthy controls from studying pictures compared to words. The findings are discussed in terms of visual processing and possible clinical importance.
Reproduction of superior sagittal sinus animal model by bypass transplantation of biomaterial graft

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Qing-yong LUO

2011-03-01

Full Text Available Objective To establish the beagles model of superior sagittal sinus bypass graft,and explore the feasibility of reconstruction of superior sagittal sinus with biomaterials using this model.Methods Eight adult male beagles(weight: 12.5-22.0kg were involved in the present study.The superior sagittal sinus was exposed and blocked via bone window,and then anastomosed side-to-end to the biomaterial graft under the dedicated microscope of neurosurgery surgery,expectant treatment such as anti-inflammatory was given for the animals.The digital subtraction venography(DSV and color Doppler flow imaging(CDFI of superior sagittal sinus were performed in 1,2,4 and 8 weeks after the operation.Eight weeks after the operation,all the animals were sacrificed and the material graft was examined histologically.Results The DSV and CDFI of superior sagittal sinus showed that the stomas of 2 beagles were with slight stenosis and high flow velocity,of 1 beagle with small leakage and low flow velocity,while of other 5 beagles were normal.The histological examination showed endothelial cells were growing on the graft and superior sagittal sinus,and crawling toward the lumen of graft 8 weeks after the operation.Conclusion The beagles model of superior sagittal sinus bypass graft was established successfully.The short-term effect of the model was satisfactory,while further work should be performed to determine the long-term effects.
Accommodation and convergence palsy caused by lesions in the bilateral rostral superior colliculus.

Science.gov (United States)

Ohtsuka, Kenji; Maeda, Sachie; Oguri, Naomi

2002-03-01

To report a patient who developed accommodation and convergence palsy caused by lesions in the bilateral rostral superior colliculus. Observational case report. A 30-year-old right-handed man experienced sudden onset of diplopia and blurred vision at near vision. The patient showed accommodation and convergence palsy. Magnetic resonance imaging revealed lesions located in the bilateral rostral superior colliculus. These findings suggest that the rostral superior colliculus is involved in the control of accommodation and vergence eye movements.
Burlington Northern Taconite Transshipment Facility, Duluth-Superior Harbor, Superior Wisconsin. Environmental Assessment Report.

Science.gov (United States)

1975-03-01

the Federal Government declared the Duluth- Superior area to be economically depressed . The reason given was the "consistant and chronic unemployment...include dogwood, sumac, arrowwood, blueberry, highbush cranberry , elderberry, wild grape, buttonbrush, snowberry and partridgeberry. Aquatic and...water for the proposed greenbelt areas and as dust sup- pression spray. 10.003 The depressed economy of the Duluth-Superior area would benefit by the
Isolated abscess in superior rectus muscle in a child

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Sushank Ashok Bhalerao

2015-01-01

Full Text Available Pyomyositis is a primary bacterial infection of striated muscles nearly always caused by Staphylococcus aureus. Development of the intramuscular abscess involving the extra-ocular muscles (EOMs remains an extremely rare process. We herein present a case of isolated EOM pyomyositis involving superior rectus muscle in a 2-year male child who was referred with complaints of swelling in left eye (LE and inability to open LE since last 1-month. Orbital computed tomography (CT scan showed a well-defined, hypo-dense, peripheral rim-enhancing lesion in relation to left superior rectus muscle suggestive of left superior rectus abscess. The abscess was drained through skin approach. We concluded that pyomyositis of EOM should be considered in any patient presenting with acute onset of orbital inflammation and characteristic CT or magnetic resonance imaging features. Management consists of incision and drainage coupled with antibiotic therapy.
Don’t words come easy?A psychophysical exploration of word superiority

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Randi eStarrfelt

2013-09-01

Full Text Available Words are made of letters, and yet sometimes it is easier to identify a word than a single letter. This word superiority effect (WSE has been observed when written stimuli are presented very briefly or degraded by visual noise. We compare performance with letters and words in three experiments, to explore the extents and limits of the WSE. Using a carefully controlled list of three letter words, we show that a word superiority effect can be revealed in vocal reaction times even to undegraded stimuli. With a novel combination of psychophysics and mathematical modelling, we further show that the typical WSE is specifically reflected in perceptual processing speed: single words are simply processed faster than single letters. Intriguingly, when multiple stimuli are presented simultaneously, letters are perceived more easily than words, and this is reflected both in perceptual processing speed and visual short term memory capacity. So, even if single words come easy, there is a limit to the word superiority effect.

Morfologia e estabilidade de agregados superficiais de um argissolo vermelho-amarelo sob diferentes manejos de longa duração e mata atlântica secundária

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Clério Hickmann

2011-12-01

Full Text Available Experimentos de longa duração submetidos a diferentes manejos de solo fornecem importantes informações quando as alterações nas propriedades físicas, químicas e biológicas são avaliadas e comparadas às das condições originais do solo. Este estudo teve como objetivo avaliar a morfologia externa e a estabilidade de agregados superficiais de um Argissolo Vermelho-Amarelo sob diferentes tipos de manejo em experimento de longa duração e nas condições sob Mata Atlântica secundária. Foram coletadas amostras de solo deformadas e indeformadas na camada de 0-5 cm, em dois tipos de manejo de solo: plantio direto (PD e preparo com arado de disco + grade pesada (AD + GP. Também foi avaliada, como referência do estado de agregação original do solo, uma área de Mata Atlântica secundária (MS adjacente ao experimento. As amostras indeformadas foram impregnadas com resina de poliéster e, na sequência, lâminas delgadas com 30 µm de espessura foram confeccionadas. Posteriormente, as lâminas foram examinadas em microscópio óptico, acoplado à câmera digital, para obtenção de imagens fotográficas mediante seleção aleatória de campos nas lâminas. As imagens geradas foram processadas pelo programa de computador Adobe Photoshop CS3 para análise de parâmetros relacionados à morfologia externa de agregados (perímetro, área, comprimento do maior eixo, comprimento do menor eixo, diâmetro de Feret, alongamento e arredondamento, que visam fornecer informações sobre o tamanho, a forma e a rugosidade dos agregados. Para as amostras deformadas, além da estabilidade dos agregados em água em classes de tamanho 4-2; 2-1; 1-0, 5; 0,5-0,25; 0,25-0,105; e < 0,105 mm de diâmetro, foi determinado o C orgânico total (COT. Foram calculados: diâmetro médio ponderado (DMP, diâmetro médio geométrico (DMG e índice de estabilidade de agregados (IEA. Houve predomínio da classe de agregados de 4-2 mm nos dois tipos de manejo e na MS
Superior oblique luxation and trochlear luxation as new concepts in superior oblique muscle weakening surgery

NARCIS (Netherlands)

Mombaerts, I.; Koornneef, L.; Everhard-Halm, Y. S.; Hughes, D. S.; Maillette de Buy Wenniger-Prick, L. J.

1995-01-01

We used superior oblique luxation and trochlear luxation as new surgical procedures to treat acquired Brown's syndrome and superior oblique muscle overaction. We studied nine patients (11 eyes) who underwent trochlear surgery between 1988 and 1993. Four patients had acquired Brown's syndrome and
Endemic and threatened tetrapods in the restingas of the biodiversity corridors of Serra do Mar and of the central da Mata Atlântica in Eastern Brazil

OpenAIRE

Rocha, C. F. D; Van Sluys, M; Bergallo, H. G.; Alves, M. A. S.

2005-01-01

Biodiversity corridors comprise a mosaic of land uses connecting fragments of natural forest across a landscape. Two such corridors have been established along the eastern coast of Brazil: the Serra do Mar and the Central da Mata Atlântica corridors, along which most of the coastal plains are restinga areas. In this study, we analyze the present status of the endemic and endangered terrestrial vertebrates of both corridors. We sampled 10 restingas in both corridors, recording species of amphi...
Mechanism of the superior mechanical strength of nanometer-sized metal single crystals revealed

KAUST Repository

Afify, N. D.

2013-10-01

Clear understanding of the superior mechanical strength of nanometer-sized metal single crystals is required to derive advanced mechanical components retaining such superiority. Although high quality studies have been reported on nano-crystalline metals, the superiority of small single crystals has neither been fundamentally explained nor quantified to this date. Here we present a molecular dynamics study of aluminum single crystals in the size range from 4.1 nm to 40.5 nm. We show that the ultimate mechanical strength deteriorates exponentially as the single crystal size increases. The small crystals superiority is explained by their ability to continuously form vacancies and to recover them. © 2013 Published by Elsevier B.V.
Papaya Development Model As A Competitive Local Superior Commodity

Directory of Open Access Journals (Sweden)

Reny Sukmawani

2014-12-01

Full Text Available The aim of this research is to study the comparative advantage and papaya competitive and to design its development model by using the approach of local base agriculture development. This research uses survey method. The resulting research shows that papaya is a base commodity that has comparative advantage and competitive. The development papaya in the district of Sukabumi is quite good bases on eight superior creations. But in order to be the main sector in economic development and has a competition, the development of papaya must concern to its influence factors. In supporting papaya development as a competitive local superior commodity, it needs to be done some efforts are as follows: (1 increase a skillful worker; (2 improve business management; (3 increase papaya productivity by using technology and study papaya planted technology in specific local superior commodity; (4 develop the involvement of the business relation; (5 provide market information and information technology network; and (6 improve infrastructures.
Alternate superior Julia sets

International Nuclear Information System (INIS)

Yadav, Anju; Rani, Mamta

2015-01-01

Alternate Julia sets have been studied in Picard iterative procedures. The purpose of this paper is to study the quadratic and cubic maps using superior iterates to obtain Julia sets with different alternate structures. Analytically, graphically and computationally it has been shown that alternate superior Julia sets can be connected, disconnected and totally disconnected, and also fattier than the corresponding alternate Julia sets. A few examples have been studied by applying different type of alternate structures
Tecnología de herramientas rotativas durante el Bronce Final Atlántico. El depósito de Villena

Directory of Open Access Journals (Sweden)

Armbruster, Barbara R.

1994-12-01

Full Text Available The analysis of the Villena goldhoard bracelets is the starting point for a team research which has showed the existence of a technological stage which was more developed than we thought for the Atlantic Bronze Age in the Iberian Peninsula. The use of a complex lost wax casting gold technique and the existence of a horizontal rotary axis lathe are demonstrated. Finally we put forward an explanation for this important hoard and we stablish a chronological frame work framework for a series of gold finds coming from the southwest of the Iberian Peninsula.

El estudio de los brazaletes del tesoro de Villena es el punto de partida de una investigación en equipo que ha tenido como resultado la constatación de un estadio tecnológico más avanzado del que hasta ahora se pensaba para la metalurgia del Bronce Atlántico en la Península Ibérica. Se demuestra la práctica de una sofisticada técnica de fundición a la cera perdida en oro y la existencia del torno de eje horizontal. Finalmente planteamos un modelo interpretativo para este importante depósito y situamos en un marco de cronología relativa toda una serie de hallazgos de orfebrería del suroeste peninsular que hasta la fecha se encontraban descontextualizados.
Diversidade de espécies e ecologia da comunidade de lagartos de um fragmento de Mata Atlântica no nordeste do Brasil

OpenAIRE

Silva, Ubiratan Gonçalves da

2008-01-01

Neste estudo foram investigadas a diversidade, a composição, e as diferenças no uso do espaço (hábitat e microhábitat) e do alimento em uma comunidade de lagartos habitantes da serapilheira de um fragmento de Mata Atlântica, do Estado de Alagoas, Brasil. Para a observação e/ou coleta dos espécimes, foram utilizados os métodos de busca ativa e armadilhas de queda (pit-fall traps) sem cerca-guia. Para análises de diversidade e da existência de diferenças de diversidade entre os hábitats e micro...
Distribuição espacial e abundância de carrapatos (Acari: Ixodidae) em remanescente de Mata Atlântica, Nordeste do Brasil

OpenAIRE

Fonseca, Cristina F. da; Lima, Débora C.V. de; Souza, Dênisson da S. e; Silva, Silvia G.N. da; Lima, Jaciara R.B. de; Oliveira, Jaqueline B. de; Moura, Geraldo J.B. de; Aléssio, Filipe M.

2017-01-01

RESUMO: A distribuição espacial e a abundância de carrapatos em estágio de vida livre foram examinadas em fragmentos de Mata Atlântica no Nordeste do Brasil. O estudo foi realizado em Unidades de Conservação de Proteção Integral Mata do Tapacurá e Mata do Camucim, localizadas no município de São Lourenço da Mata, Pernambuco. Os carrapatos foram capturados pelo método da bandeira de flanela em seis parcelas de 200m2, sendo três parcelas estabelecidas em uma borda de mata adjacente a uma matriz...
Anarquistas y policías en el atlántico sudamericano: una red transnacional, 1890-1910

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Martín Albornoz

Full Text Available Este artículo analiza la emergencia de mecanismos de cooperación policial para la vigilancia y expulsión de anarquistas en el atlántico sudamericano. Buscando ampliar las aproximaciones más corrientes sobre el tema, en su mayoría enfocadas en los efectos de las políticas represivas dentro de las fronteras nacionales, propone un recorte geográfico que abarca las conexiones entre las policías de Buenos Aires, Montevideo y diversas ciudades portuarias brasileñas. A partir de la reconstrucción de intercambios epistolares y de una abundante circulación de telegramas se esboza una cartografía específica para repensar rutas de la represión y del destierro, con foco en la dinámica que las expulsiones de extranjeros provocaron en los puertos de la región. Aunque sean centrales para este estudio, el análisis no se ciñe únicamente a las fuentes policiales, incorporando documentos de la prensa comercial y relatos de los propios anarquistas.
Correlation of clinical predictions and surgical results in maxillary superior repositioning.

Science.gov (United States)

Tabrizi, Reza; Zamiri, Barbad; Kazemi, Hamidreza

2014-05-01

This is a prospective study to evaluate the accuracy of clinical predictions related to surgical results in subjects who underwent maxillary superior repositioning without anterior-posterior movement. Surgeons' predictions according to clinical (tooth show at rest and at the maximum smile) and cephalometric evaluation were documented for the amount of maxillary superior repositioning. Overcorrection or undercorrection was documented for every subject 1 year after the operations. Receiver operating characteristic curve test was used to find a cutoff point in prediction errors and to determine positive predictive value (PPV) and negative predictive value. Forty subjects (14 males and 26 females) were studied. Results showed a significant difference between changes in the tooth show at rest and at the maximum smile line before and after surgery. Analysis of the data demonstrated no correlation between the predictive data and the surgical results. The incidence of undercorrection (25%) was more common than overcorrection (7.5%). The cutoff point for errors in predictions was 5 mm for tooth show at rest and 15 mm at the maximum smile. When the amount of the presurgical tooth show at rest was more than 5 mm, 50.5% of clinical predictions did not match the clinical results (PPV), and 75% of clinical predictions showed the same results when the tooth show was less than 5 mm (negative predictive value). When the amount of presurgical tooth shown in the maximum smile line was more than 15 mm, 75% of clinical predictions did not match with clinical results (PPV), and 25% of the predictions had the same results because the tooth show at the maximum smile was lower than 15 mm. Clinical predictions according to the tooth show at rest and at the maximum smile have a poor correlation with clinical results in maxillary superior repositioning for vertical maxillary excess. The risk of errors in predictions increased when the amount of superior repositioning of the maxilla increased
Anthropogenic climate change has altered primary productivity in Lake Superior.

Science.gov (United States)

O'Beirne, M D; Werne, J P; Hecky, R E; Johnson, T C; Katsev, S; Reavie, E D

2017-06-09

Anthropogenic climate change has the potential to alter many facets of Earth's freshwater resources, especially lacustrine ecosystems. The effects of anthropogenic changes in Lake Superior, which is Earth's largest freshwater lake by area, are not well documented (spatially or temporally) and predicted future states in response to climate change vary. Here we show that Lake Superior experienced a slow, steady increase in production throughout the Holocene using (paleo)productivity proxies in lacustrine sediments to reconstruct past changes in primary production. Furthermore, data from the last century indicate a rapid increase in primary production, which we attribute to increasing surface water temperatures and longer seasonal stratification related to longer ice-free periods in Lake Superior due to anthropogenic climate warming. These observations demonstrate that anthropogenic effects have become a prominent influence on one of Earth's largest, most pristine lacustrine ecosystems.
The picture superiority effect in patients with Alzheimer’s disease and mild cognitive impairment

Science.gov (United States)

Ally, Brandon A.; Gold, Carl A.; Budson, Andrew E.

2009-01-01

The fact that pictures are better remembered than words has been reported in the literature for over 30 years. While this picture superiority effect has been consistently found in healthy young and older adults, no study has directly evaluated the presence of the effect in patients with Alzheimer’s disease (AD) or mild cognitive impairment (MCI). Clinical observations have indicated that pictures enhance memory in these patients, suggesting that the picture superiority effect may be intact. However, several studies have reported visual processing impairments in AD and MCI patients which might diminish the picture superiority effect. Using a recognition memory paradigm, we tested memory for pictures versus words in these patients. The results showed that the picture superiority effect is intact, and that these patients showed a similar benefit to healthy controls from studying pictures compared to words. The findings are discussed in terms of visual processing and possible clinical importance. PMID:18992266
Dinâmica reprodutiva e parasitária de quatro espécies de peixes das águas costeiras do Sudoeste do Oceano Atlântico, Brasil

OpenAIRE

Lima, José Ticiano Arruda Ximenes de

2008-01-01

O presente trabalho investigou a dinâmica reprodutiva e parasitária de quatro espécies de peixes marinhos: serra, Scomberomorus brasiliensis, tibiros, Oligoplites saurus e O. palometa e palombeta, Chloroscombrus chrysurus, durante os messes de agosto de 2005 a julho de 2007, nas águas costeiras do Sudoeste do Oceano Atlântico, Brasil. Os peixes foram medidos, pesados, dissecados, as gônadas pesadas e examinadas para separação do sexo. Foram avaliados o índice gonadossomática (IGS)...
Isolation and Biochemical Characterization of Apios Tuber Lectin

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Eri Kenmochi

2015-01-01

Full Text Available Apios tuber lectin, named ATL, was isolated from Apios americana Medikus by two chromatography steps, hydrophobic chromatography and anion-exchange chromatography. The minimum concentration required for the hemagglutination activity toward rabbit erythrocytes of ATL was 4 μg/mL. ATL was composed of a homodimer of 28.4 kDa subunits. The amino acid sequence of ATL was similar to those of other legume lectins. The lectin showed moderate stability toward heating and acidic pH, and the binding affinity against several monosaccharides, such as D-glucosamine and D-galactosamine. ATL also bound to desialylated or agalactosylated glycoproteins such as asialo and agalacto transferrin. ATL decreased the transepithelial electrical resistance across human intestinal Caco-2 cell monolayers, suggesting the effect on the tight junction-mediated paracellular transport.
Superior Hiking Trail

Data.gov (United States)

Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...
Duas espécies novas de membracídeos (Hemiptera, Membracidae da Mata Atlântica do Estado de São Paulo, Brasil Two new species of treehopper (Hemiptera, Membracidae from the Atlantic Forest of São Paulo State, Brazil

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Albino M. Sakakibara

2009-01-01

Full Text Available Duas espécies são descritas da Mata Atlântica do Estado de São Paulo: uma pertencente ao gênero Antonae Stål (Smiliinae-Ceresini, Antonae brasiliensis sp. nov. e outra a Hypheodana Metcalf (Darninae-Darnini, Hypheodana gargionei sp. nov., ambas de Campos do Jordão, São Paulo. O gênero Antonae é registrado pela primeira vez no Brasil e Hypheodana, por outro lado, para a Mata Atlântica.Two species are described: one belonging to the genus Antonae Stål (Smiliinae, Ceresini, Antonae brasiliensis sp. nov., and another to Hypheodana Metcalf (Darninae-Darnini, Hypheodana gargionei sp. nov., both from Campos do Jordão, São Paulo. The genus Antonae Stål is recorded for the first time in Brazil, and Hypheodana, on the other hand, in the Atlantic Forest.
A Revolução Haitiana e o Atlântico Negro: o Constitucionalismo em face do Lado Oculto da Modernidade / The Haitian Revolution and the Black Atlantic: Constitutionalism in face of the Dark Side of Modernity

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Evandro Charles Piza Duarte

2017-01-01

Full Text Available Resumo: O presente artigo pretende ser um duplo movimento de reflexão sobre as categorias utilizadas para tratar da história do constitucionalismo moderno. Primeiramente, apresentará a categoria de “Atlântico Negro” e suas respectivas contribuições para uma “reperiodização” da modernidade, especificamente quanto aos movimentos sociais de reivindicação de direitos. Em seguida toma um evento particular desse Atlântico Negro, a Revolução Haitiana, como prisma hermenêutico e metodológico para pensar as disputas constitucionais. Busca-se, desse modo, adotar o ponto de vista de uma filosofia da história que lide, de maneira integrada, com a modernidade e o colonialismo. Por fim, tecerá breves comentários sobre como esse duplo movimento poderá contribuir para a reflexão sobre o direito constitucional contemporâneo. Abstract: The present paper aims to be a double movement of reflection about the history of modern constitutionalism. Firstly, it introduces the “Black Atlantic” category and its respective contributions to perform a “re-periodization” of modernity, specifically in relation to social movements of human rights. Then, it takes one particular event of this Black Atlantic, the Haitian Revolution, to be a methodological and hermeneutical prism to think the constitutional struggles. Thereby, the paper intends to embrace a point of view of the philosophy of history that deals with modernity and colonialism in an integrated manner. Lastly, it shows how this double displacement can contribute to the contemporary constitutional thought.
Endemic and threatened tetrapods in the restingas of the biodiversity corridors of Serra do Mar and of the Central da Mata Atlântica in eastern Brazil.

Science.gov (United States)

Rocha, C F D; Van Sluys, M; Bergallo, H G; Alves, M A S

2005-02-01

Biodiversity corridors comprise a mosaic of land uses connecting fragments of natural forest across a landscape. Two such corridors have been established along the eastern coast of Brazil: the Serra do Mar and the Central da Mata Atlântica corridors, along which most of the coastal plains are restinga areas. In this study, we analyze the present status of the endemic and endangered terrestrial vertebrates of both corridors. We sampled 10 restingas in both corridors, recording species of amphibians, reptiles, birds, and mammals. Some restingas harbor a relatively large number of endemic species,and two main regions of endemism can be identified along the restingas of both corridors: the coastal restingas from northern Espirito Santo State to southern Bahia State (between Linhares, ES, and Tarancoso, BA), and the coastal region between the restingas of Maricá and Jurubatiba, Rio de Janeiro State. Six species of terrestrial vertebrates considered threatened with extinction are found in the restingas of Serra do Mar and Central da Mata Atlântica biodiversity corridors (Liolaemus lutzae, Formicivora littoralis, Mimus gilvus, Schistochlamys melanopis, and Trinomys eliasi). The region located between the restinga of Maricá and that of Jurubatiba is of special relevance for the conservation of vertebrate species of the restingas of the corridors because a considerable number of threatened species of terrestrial vertebrates are found there. We strongly recommend efforts to develop checklists of threatened faunas for the States of Espirito Santo and Bahia.
Busca ativa de casos de leishmaniose cutânea em humanos e cães em área periférica do município de Campo Mourão - PR, Brasil Active search of cutaneous leishmaniasis in humans and canines in the peripherical area of Campo Mourão - PR - Brazil

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Luís Antonio Sangioni

2007-10-01

Full Text Available Foi realizada uma busca ativa de casos de leishmaniose cutânea em humanos e cães, em área periférica da cidade de Campo Mourão - PR. No período de 01 a 30 de junho de 2004, uma equipe multidisciplinar visitou todas as residências e estabelecimentos comerciais situadas até 150m da margem superior e inferior do rio 119, que delimita o município. Todos os casos humanos suspeitos de Leishmaniose Tegumentar Americana (LTA foram encaminhados para o Posto de Saúde de referência para receberem os devidos tratamentos e orientação profilática. Foram encontrados 6 (seis casos de pessoas suspeitas de LTA, sendo que 04 (quatro resultaram em diagnóstico negativo e 02 (dois em diagnóstico positivo. Nenhum cão apresentou lesão suspeita de LTA.An active search was done to identify cases of leishmaniasis in humans and dogs in a peripherical area of Campo Mourão, PR, Brazil. From the first to thirtieth June of 2004, a multidisciplinary professional team visited all residences located within 150 meters from the superior and inferior margins of the river 119, which delimits the city. All human cases of American Tegumentary Leishmaniasis (ATL were directed to reference health care center for the appropriated treatment and prophylactic orientation. Six cases of persons suspected of ATL were found; four patients resulted in a negative diagnosis while two cases were positive. No dogs demonstrated lesions that were suggestive of ATL.

Anterior temporal face patches: A meta-analysis and empirical study

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Rebecca J. Von Der Heide

2013-02-01

Full Text Available Studies of nonhuman primates have reported face sensitive patches in the ventral anterior temporal lobes (ATL. In humans, ATL resection or damage causes an associative prosopagnosia in which face perception is intact but face memory is compromised. Some fMRI studies have extended these findings using famous and familiar faces. However, it is unclear whether these regions in the human ATL are in locations comparable to those reported in non-human primates, typically using unfamiliar faces. We present the results of two studies of person memory: a meta-analysis of existing fMRI studies and an empirical fMRI study using optimized imaging parameters. Both studies showed left-lateralized ATL activations to familiar individuals while novel faces activated the right ATL. Activations to famous faces were quite ventral, similar to what has been reported in monkeys. These findings suggest that face memory-sensitive patches in the human ATL are in the ventral/polar ATL.
Picture superiority in free recall: the effects of normal aging and primary degenerative dementia.

Science.gov (United States)

Rissenberg, M; Glanzer, M

1986-01-01

A key factor in the decline of memory with age may be a breakdown of communication in the information network involved in memory and cognitive processing. A special case of this communication is assumed to underlie the picture superiority effect in recall. From this hypothesis it follows that the picture superiority effect should lessen with age. In Experiment 1, three groups of adults (young, old normal, and old memory-impaired) were tested in free recall of pictures and word lists. As predicted, the picture superiority effect declined with age. Experiment 2 replicated these findings and showed, moreover, that the picture superiority effect can be reestablished in normal old adults by instructing them to verbalize overtly during item presentation.
The picture superiority effect in conceptual implicit memory: a conceptual distinctiveness hypothesis.

Science.gov (United States)

Hamilton, Maryellen; Geraci, Lisa

2006-01-01

According to leading theories, the picture superiority effect is driven by conceptual processing, yet this effect has been difficult to obtain using conceptual implicit memory tests. We hypothesized that the picture superiority effect results from conceptual processing of a picture's distinctive features rather than a picture's semantic features. To test this hypothesis, we used 2 conceptual implicit general knowledge tests; one cued conceptually distinctive features (e.g., "What animal has large eyes?") and the other cued semantic features (e.g., "What animal is the figurehead of Tootsie Roll?"). Results showed a picture superiority effect only on the conceptual test using distinctive cues, supporting our hypothesis that this effect is mediated by conceptual processing of a picture's distinctive features.
Hypomethylation of the Treg-Specific Demethylated Region in FOXP3 Is a Hallmark of the Regulatory T-cell Subtype in Adult T-cell Leukemia.

Science.gov (United States)

Shimazu, Yayoi; Shimazu, Yutaka; Hishizawa, Masakatsu; Hamaguchi, Masahide; Nagai, Yuya; Sugino, Noriko; Fujii, Sumie; Kawahara, Masahiro; Kadowaki, Norimitsu; Nishikawa, Hiroyoshi; Sakaguchi, Shimon; Takaori-Kondo, Akifumi

2016-02-01

Adult T-cell leukemia (ATL) is an aggressive T-cell malignancy caused by human T-cell leukemia virus type 1. Because of its immunosuppressive property and resistance to treatment, patients with ATL have poor prognoses. ATL cells possess the regulatory T cell (Treg) phenotype, such as CD4 and CD25, and usually express forkhead box P3 (FOXP3). However, the mechanisms of FOXP3 expression and its association with Treg-like characteristics in ATL remain unclear. Selective demethylation of the Treg-specific demethylated region (TSDR) in the FOXP3 gene leads to stable FOXP3 expression and defines natural Tregs. Here, we focus on the functional and clinical relationship between the epigenetic pattern of the TSDR and ATL. Analysis of DNA methylation in specimens from 26 patients with ATL showed that 15 patients (58%) hypomethylated the TSDR. The FOXP3(+) cells were mainly observed in the TSDR-hypomethylated cases. The TSDR-hypomethylated ATL cells exerted more suppressive function than the TSDR-methylated ATL cells. Thus, the epigenetic analysis of the FOXP3 gene identified a distinct subtype with Treg properties in heterogeneous ATL. Furthermore, we observed that the hypomethylation of TSDR was associated with poor outcomes in ATL. These results suggest that the DNA methylation status of the TSDR is an important hallmark to define this heterogeneous disease and to predict ATL patient prognosis. ©2015 American Association for Cancer Research.
An auditory analog of the picture superiority effect.

Science.gov (United States)

Crutcher, Robert J; Beer, Jenay M

2011-01-01

Previous research has found that pictures (e.g., a picture of an elephant) are remembered better than words (e.g., the word "elephant"), an empirical finding called the picture superiority effect (Paivio & Csapo. Cognitive Psychology 5(2):176-206, 1973). However, very little research has investigated such memory differences for other types of sensory stimuli (e.g. sounds or odors) and their verbal labels. Four experiments compared recall of environmental sounds (e.g., ringing) and spoken verbal labels of those sounds (e.g., "ringing"). In contrast to earlier studies that have shown no difference in recall of sounds and spoken verbal labels (Philipchalk & Rowe. Journal of Experimental Psychology 91(2):341-343, 1971; Paivio, Philipchalk, & Rowe. Memory & Cognition 3(6):586-590, 1975), the experiments reported here yielded clear evidence for an auditory analog of the picture superiority effect. Experiments 1 and 2 showed that sounds were recalled better than the verbal labels of those sounds. Experiment 2 also showed that verbal labels are recalled as well as sounds when participants imagine the sound that the word labels. Experiments 3 and 4 extended these findings to incidental-processing task paradigms and showed that the advantage of sounds over words is enhanced when participants are induced to label the sounds.
Total variation superiorized conjugate gradient method for image reconstruction

Science.gov (United States)

Zibetti, Marcelo V. W.; Lin, Chuan; Herman, Gabor T.

2018-03-01

The conjugate gradient (CG) method is commonly used for the relatively-rapid solution of least squares problems. In image reconstruction, the problem can be ill-posed and also contaminated by noise; due to this, approaches such as regularization should be utilized. Total variation (TV) is a useful regularization penalty, frequently utilized in image reconstruction for generating images with sharp edges. When a non-quadratic norm is selected for regularization, as is the case for TV, then it is no longer possible to use CG. Non-linear CG is an alternative, but it does not share the efficiency that CG shows with least squares and methods such as fast iterative shrinkage-thresholding algorithms (FISTA) are preferred for problems with TV norm. A different approach to including prior information is superiorization. In this paper it is shown that the conjugate gradient method can be superiorized. Five different CG variants are proposed, including preconditioned CG. The CG methods superiorized by the total variation norm are presented and their performance in image reconstruction is demonstrated. It is illustrated that some of the proposed variants of the superiorized CG method can produce reconstructions of superior quality to those produced by FISTA and in less computational time, due to the speed of the original CG for least squares problems. In the Appendix we examine the behavior of one of the superiorized CG methods (we call it S-CG); one of its input parameters is a positive number ɛ. It is proved that, for any given ɛ that is greater than the half-squared-residual for the least squares solution, S-CG terminates in a finite number of steps with an output for which the half-squared-residual is less than or equal to ɛ. Importantly, it is also the case that the output will have a lower value of TV than what would be provided by unsuperiorized CG for the same value ɛ of the half-squared residual.
Superior versus inferior Ahmed glaucoma valve implantation.

Science.gov (United States)

Pakravan, Mohammad; Yazdani, Shahin; Shahabi, Camelia; Yaseri, Mehdi

2009-02-01

To compare the efficacy and safety of Ahmed glaucoma valve (AGV) (New World Medical Inc., Rancho Cucamonga, CA) implantation in the superior versus inferior quadrants. Prospective parallel cohort study. A total of 106 eyes of 106 patients with refractory glaucoma. Consecutive patients with refractory glaucoma underwent AGV implantation in the superior or inferior quadrants. Main outcome measures included intraocular pressure (IOP) and rate of complications. Other outcome measures included best corrected visual acuity (BCVA), number of glaucoma medications, and success rate (defined as at least 30% IOP reduction and 5glaucoma surgery, phthisis bulbi, or loss of light perception. Of a total of 106 eyes, 58 and 48 eyes underwent AGV implantation in the superior and inferior quadrants, respectively. Baseline characteristics were comparable in the study groups, except for preoperative IOP, which was higher in the superior group (P = 0.01). Patients were followed for a mean period of 10.6+/-8.49 months and 10.58+/-6.75 months in the superior and inferior groups, respectively (P = 0.477). BCVA was comparable between the groups at all postoperative visits (P>0.122). After 1 year, statistically significant but comparable IOP reduction from baseline (Pglaucoma medications was comparable after 1 year (1.3+/-1.2 vs. 1.9+/-0.8 for superior and inferior implants, respectively, P = 0.256). Success rates were also similar at 1 year: 27 eyes (81.8%) versus 20 eyes (95.2%) for superior and inferior implants, respectively (P = 0.227). However, the overall rate of complications, such as implant exposure necessitating removal, cosmetically unappealing appearance, and endophthalmitis, was higher in the inferior group: 12 eyes (25%) versus 3 eyes (5.2%) for superior and inferior groups, respectively, (P = 0.004). Superior and inferior AGV implants have similar intermediate efficacy in terms of IOP reduction, decrease in number of glaucoma medications, and preservation of vision. However
Identification and Characterization of an Autolysin-Encoding Gene of Streptococcus mutans

OpenAIRE

Shibata, Yukie; Kawada, Miki; Nakano, Yoshio; Toyoshima, Kuniaki; Yamashita, Yoshihisa

2005-01-01

We identified a gene (atlA) encoding autolytic activity from Streptococcus mutans Xc. The AtlA protein predicted to be encoded by atlA is composed of 979 amino acids with a molecular weight of 107,279 and has a conserved β-1,4-N-acetylmuramidase (lysozyme) domain in the C-terminal portion. Sodium dodecyl sulfate extracts of strain Xc showed two major bacteriolytic bands with molecular masses of 107 and 79 kDa, both of which were absent from a mutant with inactivated atlA. Western blot analysi...
Diversidade e aspectos ecológicos de fungos gasteróides (Basidiomycota) em quatros áreas de Mata Atlântica no Estado de Pernambuco, Brasil

OpenAIRE

Trierveliler Pereira, Larissa

2011-01-01

Os fungos gasteróides são caracterizados principalmente pelo basidioma angiocárpico e liberação passiva dos basidiosporos. Até o momento, 232 espécies de fungos gasteróides estão registradas para o Brasil, sendo que o conhecimento do grupo vem aumentando desde o início do século XXI. Com o objetivo de conhecer melhor estes organismos no Brasil, a diversidade e aspectos ecológicos de fungos gasteróides foram investigados em quatro remanescentes de Mata Atlântica no estado de Per...
False memories in highly superior autobiographical memory individuals

Science.gov (United States)

Patihis, Lawrence; Frenda, Steven J.; LePort, Aurora K. R.; Petersen, Nicole; Nichols, Rebecca M.; Stark, Craig E. L.; McGaugh, James L.; Loftus, Elizabeth F.

2013-01-01

The recent identification of highly superior autobiographical memory (HSAM) raised the possibility that there may be individuals who are immune to memory distortions. We measured HSAM participants’ and age- and sex-matched controls’ susceptibility to false memories using several research paradigms. HSAM participants and controls were both susceptible to false recognition of nonpresented critical lure words in an associative word-list task. In a misinformation task, HSAM participants showed higher overall false memory compared with that of controls for details in a photographic slideshow. HSAM participants were equally as likely as controls to mistakenly report they had seen nonexistent footage of a plane crash. Finding false memories in a superior-memory group suggests that malleable reconstructive mechanisms may be fundamental to episodic remembering. Paradoxically, HSAM individuals may retrieve abundant and accurate autobiographical memories using fallible reconstructive processes. PMID:24248358
Absent right superior caval vein in situs solitus

DEFF Research Database (Denmark)

Lytzen, Rebekka; Sundberg, Karin; Vejlstrup, Niels

2015-01-01

Introduction In up to 0.07% of the general population, the right anterior cardinal vein obliterates and the left remains open, creating an absent right superior caval vein and a persistent left superior caval vein. Absent right superior caval vein is associated with additional congenital heart...... disease in about half the patients. We wished to study the consequences of absent right superior caval vein as an incidental finding on prenatal ultrasonic malformation screening. Material and methods This is a retrospective case series study of all foetuses diagnosed with absent right superior caval vein...... no postnatal complications. All children were found to have healthy hearts at follow-up. CONCLUSIONS: In all cases, the findings proved to be a benign condition with no clinical manifestations or complications. Although isolated absent right superior caval vein does not seem to affect the outcome, associated...
Superior mesenteric artery compression syndrome - case report

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Paulo Rocha França Neto

2011-12-01

Full Text Available Superior mesenteric artery syndrome is an entity generally caused by the loss of the intervening mesenteric fat pad, resulting in compression of the third portion of the duodenum by the superior mesenteric artery. This article reports the case of a patient with irremovable metastatic adenocarcinoma in the sigmoid colon, that evolved with intense vomiting. Intestinal transit was carried out, which showed important gastric dilation extended until the third portion of the duodenum, compatible with superior mesenteric artery syndrome. Considering the patient's nutritional condition, the medical team opted for the conservative treatment. Four months after the surgery and conservative measures, the patient did not present vomiting after eating, maintaining previous weight. Superior mesenteric artery syndrome is uncommon and can have unspecific symptoms. Thus, high suspicion is required for the appropriate clinical adjustment. A barium examination is required to make the diagnosis. The treatment can initially require gastric decompression and hydration, besides reversal of weight loss through adequate nutrition. Surgery should be adopted only in case of clinical treatment failure.A síndrome da artéria mesentérica superior é uma entidade clínica causada geralmente pela perda do tecido adiposo mesentérico, resultando na compressão da terceira porção do duodeno pela artéria mesentérica superior. Esse artigo relata o caso clínico de uma paciente portadora de adenocarcinoma de cólon sigmoide metastático irressecável, que evoluiu com vômitos incoercíveis. Realizou-se, então, trânsito intestinal que evidenciou dilatação gástrica importante, que se prolongava até a terceira porção duodenal, quadro radiológico compatível com pinçamento da artéria mesentérica superior. Diante da condição nutricional da paciente, foi optado por iniciar medidas conservadoras (porções alimentares pequenas e mais frequentes, além de dec
Role for protein geranylgeranylation in adult T-cell leukemia cell survival

International Nuclear Information System (INIS)

Nonaka, Mizuho; Uota, Shin; Saitoh, Yasunori; Takahashi, Mayumi; Sugimoto, Haruyo; Amet, Tohti; Arai, Ayako; Miura, Osamu; Yamamoto, Naoki; Yamaoka, Shoji

2009-01-01

Adult T-cell leukemia (ATL) is a fatal lymphoproliferative disease that develops in human T-cell leukemia virus type I (HTLV-I)-infected individuals. Despite the accumulating knowledge of the molecular biology of HTLV-I-infected cells, effective therapeutic strategies remain to be established. Recent reports showed that the hydroxyl-3-methylglutaryl (HMG)-CoA reductase inhibitor statins have anti-proliferative and apoptotic effects on certain tumor cells through inhibition of protein prenylation. Here, we report that statins hinder the survival of ATL cells and induce apoptotic cell death. Inhibition of protein geranylgeranylation is responsible for these effects, since simultaneous treatment with isoprenoid precursors, geranylgeranyl pyrophosphate or farnesyl pyrophosphate, but not a cholesterol precursor squalene, restored the viability of ATL cells. Simvastatin inhibited geranylgeranylation of small GTPases Rab5B and Rac1 in ATL cells, and a geranylgeranyl transferase inhibitor GGTI-298 reduced ATL cell viability more efficiently than a farnesyl transferase inhibitor FTI-277. These results not only unveil an important role for protein geranylgeranylation in ATL cell survival, but also implicate therapeutic potentials of statins in the treatment of ATL
Endemic and threatened tetrapods in the restingas of the biodiversity corridors of Serra do Mar and of the central da Mata Atlântica in Eastern Brazil

Directory of Open Access Journals (Sweden)

C. F. D Rocha

Full Text Available Biodiversity corridors comprise a mosaic of land uses connecting fragments of natural forest across a landscape. Two such corridors have been established along the eastern coast of Brazil: the Serra do Mar and the Central da Mata Atlântica corridors, along which most of the coastal plains are restinga areas. In this study, we analyze the present status of the endemic and endangered terrestrial vertebrates of both corridors. We sampled 10 restingas in both corridors, recording species of amphibians, reptiles, birds, and mammals. Some restingas harbor a relatively large number of endemic species, and two main regions of endemism can be identified along the restingas of both corridors: the coastal restingas from northern Espírito Santo State to southern Bahia State (between Linhares, ES, and Trancoso, BA, and the coastal region between the restingas of Maricá and Jurubatiba, Rio de Janeiro State. Six species of terrestrial vertebrates considered threatened with extinction are found in the restingas of Serra do Mar and Central da Mata Atlântica biodiversity corridors (Liolaemus lutzae, Formicivora littoralis, Mimus gilvus, Schistochlamys melanopis, and Trinomys eliasi. The region located between the restinga of Maricá and that of Jurubatiba is of special relevance for the conservation of vertebrate species of the restingas of the corridors because a considerable number of threatened species of terrestrial vertebrates are found there. We strongly recommend efforts to develop checklists of threatened faunas for the States of Espírito Santo and Bahia.
The role of the temporal pole in modulating primitive auditory memory.

Science.gov (United States)

Liu, Zhiliang; Wang, Qian; You, Yu; Yin, Peng; Ding, Hu; Bao, Xiaohan; Yang, Pengcheng; Lu, Hao; Gao, Yayue; Li, Liang

2016-04-21

Primitive auditory memory (PAM), which is recognized as the early point in the chain of the transient auditory memory system, faithfully maintains raw acoustic fine-structure signals for up to 20-30 milliseconds. The neural mechanisms underlying PAM have not been reported in the literature. Previous anatomical, brain-imaging, and neurophysiological studies have suggested that the temporal pole (TP), part of the parahippocampal region in the transitional area between perirhinal cortex and superior/inferior temporal gyri, is involved in auditory memories. This study investigated whether the TP plays a role in mediating/modulating PAM. The longest interaural interval (the interaural-delay threshold) for detecting a break in interaural correlation (BIC) embedded in interaurally correlated wideband noises was used to indicate the temporal preservation of PAM and examined in both healthy listeners and patients receiving unilateral anterior temporal lobectomy (ATL, centered on the TP) for treating their temporal lobe epilepsy (TLE). The results showed that patients with ATL were still able to detect the BIC even when an interaural interval was introduced, regardless of which ear was the leading one. However, in patient participants, the group-mean interaural-delay threshold for detecting the BIC under the contralateral-ear-leading (relative to the side of ATL) condition was significantly shorter than that under the ipsilateral-ear-leading condition. The results suggest that although the TP is not essential for integrating binaural signals and mediating the PAM, it plays a role in top-down modulating the PAM of raw acoustic fine-structure signals from the contralateral ear. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.
Superior mesenteric artery syndrome causing growth retardation

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Halil İbrahim Taşcı

2013-03-01

Full Text Available Superior mesenteric artery syndrome is a rare and lifethreateningclinical condition caused by the compressionof the third portion of the duodenum between the aortaand the superior mesenteric artery’s proximal part. Thiscompression may lead to chronic intermittent, acute totalor partial obstruction. Sudden weight-loss and the relateddecrease in the fat tissue are considered to be the etiologicalreason of acute stenosis. Weight-loss accompaniedby nausea, vomiting, anorexia, epigastric pain, andbloating are the leading complaints. Barium radiographs,computerized tomography, conventional angiography,tomographic and magnetic resonance angiography areused in the diagnosis. There are medical and surgical approachesto treatment. We hereby present the case ofa patient with superior mesenteric artery syndrome withdelayed diagnosis.Key words: superior mesenteric artery syndrome, nausea-vomiting, anorexia
Portfolio Evaluation Based on Efficient Frontier Superiority Using Center of Gravity

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Omar Samat

2010-01-01

Full Text Available Investing in portfolio of assets is the best way to reduce the investment risk. The most desired portfolio can be obtained when investors chose to invest in the portfolios that lay on the portfolio’s efficient frontier. However, the superiorities of the portfolios are difficult to differentiate especially when the efficient frontier curves are overlapping. This paper proposed the portfolio’s efficient frontier center of gravity (CoG and Euclidean distance to identify its superiority. A sample of 49 stocks of large-cap and small-cap were used to construct two hypothetical portfolios and its efficient frontiers. The Euclidean distance showed that the large-cap portfolio is superior and having wider feasible solutions compared to the small-cap portfolio. The results of new tool introduced are consistent with the conventional methods. Here the theoretical and practical implications are provided in light of the findings.
A Revolução Haitiana e o Atlântico Negro: o Constitucionalismo em face do Lado Oculto da Modernidade / The Haitian Revolution and the Black Atlantic: Constitutionalism in face of the Dark Side of Modernity

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Evandro Charles Piza Duarte

2017-01-01

Full Text Available Resumo: O presente artigo pretende ser um duplo movimento de reflexão sobre as categorias utilizadas para tratar da história do constitucionalismo moderno. Primeiramente, apresentará a categoria de “Atlântico Negro” e suas respectivas contribuições para uma “reperiodização” da modernidade, especificamente quanto aos movimentos sociais de reivindicação de direitos. Em seguida toma um evento particular desse Atlântico Negro, a Revolução Haitiana, como prisma hermenêutico e metodológico para pensar as disputas constitucionais. Busca-se, desse modo, adotar o ponto de vista de uma filosofia da história que lide, de maneira integrada, com a modernidade e o colonialismo. Por fim, tecerá breves comentários sobre como esse duplo movimento poderá contribuir para a reflexão sobre o direito constitucional contemporâneo. Abstract: The present paper aims to be a double movement of reflection about the history of modern constitutionalism. Firstly, it introduces the “Black Atlantic” category and its respective contributions to perform a “re-periodization” of modernity, specifically in relation to social movements of human rights. Then, it takes one particular event of this Black Atlantic, the Haitian Revolution, to be a methodological and hermeneutical prism to think the constitutional struggles. Thereby, the paper intends to embrace a point of view of the philosophy of history that deals with modernity and colonialism in an integrated manner. Lastly, it shows how this double displacement can contribute to the contemporary constitutional thought.
Hallazgo de Symplectoscyphus bathyalis Vervoort, 1972 (Cnidaria, Hydrozoa en el Cañón de La Gaviera (Golfo de Vizcaya, España, Atlántico nordeste

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ALTUNA, A.

2012-01-01

Full Text Available Durante una campaña de muestreo en el Cañón de La Gaviera (Golfo de Vizcaya, España, Atlántico nordeste, se ha obtenido el hidrozoo Symplectoscyphus bathyalis Vervoort, 1972 (Cnidaria, Hydrozoa en dos estaciones a 700 m y 790 m de profundidad. Las colonias tienen gonosoma y son polisifónicas. La especie se ilustra y describe, actualizándose su distribución geográfica y batimétrica. Es el hallazgo realizado a menor profundidad en aguas europeas. La especie es nueva para la Península Ibérica.
Síndromes de dispersão de sementes em estágios sucessionais de mata ciliar, no extremo sul da Mata Atlântica, Arroio do Padre, RS, Brasil

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Tiago Schuch Venzke

2014-06-01

Full Text Available A síndrome de dispersão de sementes está relacionada à migração das espécies e colonização de novos locais adequados para sobrevivência e reprodução. Foram estudados três estágios sucessionais de mata ciliar no domínio da Mata Atlântica (capoeira = cinco anos de regeneração; secundária = 45 anos de regeneração; e floresta madura = sem intervenção há 35 anos. As espécies foram classificadas nas síndromes de zoocoria, anemocoria e autocoria. A zoocoria predominou nos três estágios da sucessão da mata ciliar, com percentuais variáveis de 82% até 93% das espécies e 47% até 92% dos indivíduos. A segunda síndrome de dispersão mais comum foi a anemocoria, prevalecendo com elevada abundância relativa na capoeira (25% dos indivíduos. A autocoria ocorreu no sub-bosque da floresta madura com indivíduos da espécie Gymnanthes concolor. Aparticipação da zoocoria nos três estágios da sucessão demonstra que a relação planta-animal tem elevada importância para a sucessão florestal em ambiente ciliar na região do extremo sul da Mata Atlântica.

Competitividad en el Sector Automotriz en el Departamento del Atlantico // Competitiveness in the Automotive Sector in Departamento del Atlantico // Competitividade no Sector Automóvel no Departamento del Atlântico

Directory of Open Access Journals (Sweden)

jorge cervera cardenas

2017-01-01

Full Text Available Este artículo busca reflejar el comportamiento de crecimiento o decrecimiento del sector automotriz en el Atlántico y su relación con el mercado global. Se maneja el concepto de intrafirma para la expresión de la integración internacional de la producción, como resultado de las decisiones de las empresas transnacionales acerca de la localización de sus actividades productivas y el cuasimonopolio que indica el grado de interrelación con las empresas multinacionales. Metodológicamente se procedió a partir de los datos del SIREM (Sistema de Información y Reporte Empresarial en el departamento del Atlántico, para la identificación de los componentes principales que regula la actividad del sector en relación con los otros departamentos. Se tiene como resultado los componentes importantes para visualizar si el sector se encuentra en crecimiento o decrecimiento según los principales componentes entre los que están activos, pasivos y patrimonio de las empresas del sector, el cual se compara con otros componentes para realizar un análisis más profundo del comportamiento y así determinar el estado económico de las empresas según los resultados obtenidos para la toma de decisiones de estrategias a implementar por las empresas.
Cyclin-dependent kinase 9 is a novel specific molecular target in adult T-cell leukemia/lymphoma.

Science.gov (United States)

Narita, Tomoko; Ishida, Takashi; Ito, Asahi; Masaki, Ayako; Kinoshita, Shiori; Suzuki, Susumu; Takino, Hisashi; Yoshida, Takashi; Ri, Masaki; Kusumoto, Shigeru; Komatsu, Hirokazu; Imada, Kazunori; Tanaka, Yuetsu; Takaori-Kondo, Akifumi; Inagaki, Hiroshi; Scholz, Arne; Lienau, Philip; Kuroda, Taruho; Ueda, Ryuzo; Iida, Shinsuke

2017-08-31

Cyclin-dependent kinase 9 (CDK9), a subunit of the positive transcription elongation factor b (P-TEFb) complex, regulates gene transcription elongation by phosphorylating the C-terminal domain (CTD) of RNA polymerase II (RNAPII). The deregulation of CDK9/P-TEFb has important implications for many cancer types. BAY 1143572 is a novel and highly selective CDK9/P-TEFb inhibitor currently being investigated in phase 1 studies. We evaluated the therapeutic potential of BAY 1143572 in adult T-cell leukemia/lymphoma (ATL). As a result of CDK9 inhibition and subsequent inhibition of phosphorylation at serine 2 of the RNAPII CTD, BAY 1143572 decreased c-Myc and Mcl-1 levels in ATL-derived or human T-cell lymphotropic virus type-1 (HTLV-1)-transformed lines and primary ATL cells tested, leading to their growth inhibition and apoptosis. Median inhibitory concentrations for BAY 1143572 in ATL-derived or HTLV-1-transformed lines (n = 8), primary ATL cells (n = 11), and CD4 + cells from healthy volunteers (n = 5) were 0.535, 0.30, and 0.36 μM, respectively. Next, NOG mice were used as recipients of tumor cells from an ATL patient. BAY 1143572-treated ATL-bearing mice (once daily 12.5 mg/kg oral application) demonstrated significantly decreased ATL cell infiltration of the liver and bone marrow, as well as decreased human soluble interleukin-2 receptor levels in serum (reflecting the ATL tumor burden), compared with untreated mice (n = 8 for both). BAY 1143572-treated ATL-bearing mice demonstrated significantly prolonged survival compared with untreated ATL-bearing mice (n = 7 for both). Collectively, this study indicates that BAY 1143572 showed strong potential as a novel treatment of ATL. © 2017 by The American Society of Hematology.
Memory for Pictorial Information and the Picture Superiority Effect.

Science.gov (United States)

Maisto, Albert A.; Queen, Debbie Elaine

1992-01-01

The performance of 53 younger adults (mean age 20.7) and 52 older adults (mean age 68.3) was compared in a memory task involving pictures, words, and pictures-plus-words. Results showed (1) significantly higher recall scores for younger adults; (2) equivalent picture superiority effect for both groups; and (3) decline in older adults' performance…
A Multifactorial Mechanism in the Superior Antimalarial Activity of α-C-GalCer

Directory of Open Access Journals (Sweden)

John Schmieg

2010-01-01

Full Text Available We have previously shown that the C-glycoside analog of α-galactosylceramide (α-GalCer, α-C-GalCer, displays a superior inhibitory activity against the liver stages of the rodent malaria parasite Plasmodium yoelii than its parental glycolipid, α-GalCer. In this study, we demonstrate that NK cells, as well as IL-12, are a key contributor for the superior activity displayed by α-C-GalCer. Surprisingly, the diminished production of Th2 cytokines, including IL-4, by α-C-GalCer has no affect on its superior therapeutic activity relative to α-GalCer. Finally, we show that the in vivo administration of α-C-GalCer induces prolonged maturation of dendritic cells (DCs, as well as an enhanced proliferative response of mouse invariant Vα14 (Vα14i NKT cells, both of which may also contribute to some degree to the superior activity of α-C-GalCer in vivo.
Análise comparativa da ecologia de Cnemidophorus ocellifer (Squamata: Teiidae) e Tropidurus hispidus (Squamata: Tropiduridae) em ambientes de Floresta Atlântica, Caatinga e Restinga do Nordeste brasileiro

OpenAIRE

Albuquerque, Ralph Lacerda de

2012-01-01

Variações ecológicas podem ser observadas ao longo da distribuição geográfica dos Squamata como consequência de diferentes pressões causadas por cada ambiente. Três populações de Tropidurus hispidus e Cnemidophorus ocellifer (em ambientes de Caatinga, restinga e Mata Atlântica) tiveram o uso de microhábitat, atividade, temperatura, dieta, dados morfométricos e reprodutivos comparados, a fim de testar a hipótese de que essas características respondem a variações ambientais, em vez de serem exp...
Facilitating Effects of Emotion on the Perception of Biological Motion: Evidence for a Happiness Superiority Effect.

Science.gov (United States)

Lee, Hannah; Kim, Jejoong

2017-06-01

It has been reported that visual perception can be influenced not only by the physical features of a stimulus but also by the emotional valence of the stimulus, even without explicit emotion recognition. Some previous studies reported an anger superiority effect while others found a happiness superiority effect during visual perception. It thus remains unclear as to which emotion is more influential. In the present study, we conducted two experiments using biological motion (BM) stimuli to examine whether emotional valence of the stimuli would affect BM perception; and if so, whether a specific type of emotion is associated with a superiority effect. Point-light walkers with three emotion types (anger, happiness, and neutral) were used, and the threshold to detect BM within noise was measured in Experiment 1. Participants showed higher performance in detecting happy walkers compared with the angry and neutral walkers. Follow-up motion velocity analysis revealed that physical difference among the stimuli was not the main factor causing the effect. The results of the emotion recognition task in Experiment 2 also showed a happiness superiority effect, as in Experiment 1. These results show that emotional valence (happiness) of the stimuli can facilitate the processing of BM.
False memories in highly superior autobiographical memory individuals

OpenAIRE

Patihis, Lawrence; Frenda, Steven J.; LePort, Aurora K. R.; Petersen, Nicole; Nichols, Rebecca M.; Stark, Craig E. L.; McGaugh, James L.; Loftus, Elizabeth F.

2013-01-01

The recent identification of highly superior autobiographical memory (HSAM) raised the possibility that there may be individuals who are immune to memory distortions. We measured HSAM participants' and age- and sex-matched controls' susceptibility to false memories using several research paradigms. HSAM participants and controls were both susceptible to false recognition of nonpresented critical lure words in an associative word-list task. In a misinformation task, HSAM participants showed hi...
Superiority in value and the repugnant conclusion

DEFF Research Database (Denmark)

Jensen, Karsten Klint

2007-01-01

superiority does not amount to a radical value difference at all. I then spell out the consequences of these results for different interpretations of Griffin's suggestion regarding population ethics. None of them comes out very successful, but perhaps they nevertheless retain some interest.......James Griffin has considered a weak form of superiority in value a possible remedy to the Repugnant Conclusion. In this paper, I demonstrate that, in a context where value is additive, this weaker form collapses into a stronger form of superiority. And in a context where value is non-additive, weak...
Superior Hiking Trail Facilities

Data.gov (United States)

Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...
Prevalencia de obesidad en adultos del municipio de Soledad (Atlántico, Colombia, 2010

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Edgar Navarro Lechuga

2012-01-01

Full Text Available Objetivo: Determinar la prevalencia de obesidad en adultos del municipio de Soledad (Atlántico, Colombia según diferentes consensos de clasificación. Materiales y métodos: Estudio descriptivo, transversal. Se calculó una muestra de 790 individuos (N=103731; prevalencia esperada: 22%; error: 3%; nivel de confianza: 95%. Previo consentimiento informado, se aplicó una encuesta sobre factores de riesgo cardiovascular, y a los individuos también se les tomó el peso, la talla y el perímetro de cintura. Como criterios de obesidad se tuvieron en cuenta: índice de masa corporal >29,9Kg/m2, perímetros de cintura > = 102cm (ATP III y 90cm (IDF en hombres, y 88cm (ATP III y 80cm (IDF en mujeres, según consensos internacionales. Resultados: Prevalencia de obesidad: autorreferida: 53,2%, por índice de masa corporal: 24,6%, abdominal: 72,3% (International Diabetes Federation y 45,2% (Adult Treatment Panel III. Porcentajes de obesidad significativamente mayores en mujeres (p<0,05. Se encontró asociación estadística entre obesidad e hipertensión, tanto en hombres como en mujeres. Conclusión: Se encontró una prevalencia de obesidad mayor empleando los criterios de la International Diabetes Federation. La población estudiada está expuesta a factores de riesgo que pueden potenciar el efecto negativo de la obesidad sobre su estado de salud.
Mata Atlântica, paleoterritórios e história ambiental Brazilian atlantic coastal forest, paleoterritories, and environmental history

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Rogério Ribeiro de Oliveira

2007-12-01

Full Text Available Este artigo trata da Mata Atlântica e das interferências antrópicas que este bioma sofreu no tempo, tendo por objetivo incluir o legado da atividade humana como parte das suas condições ecológicas. Como forma de análise dos processos sucessionais, é proposto o resgate dos paleoterritórios, aqui entendidos como as resultantes ecológicas decorrentes do uso dos ecossistemas por populações passadas na busca de suas condições de existência.This article deals with the Atlantic Rainforest and the anthropic interferences imposed on this biome throughout time. Its goal is to include the legacy of human activity as part of the explanation for its ecological state. As a way to analyze the sucessional processes, the concept of paleo-territory recovery is proposed in order to understand the ecological resultants due to the use of the ecosystems by traditional populations for means of existence.
Uso de lenha como combustível doméstico: padrões, impactos e perspectivas futuras para conservação da floresta atlântica ao norte do Rio São Francisco

OpenAIRE

Specht, Maria Joana da Silva

2012-01-01

O uso da lenha por populações rurais está associado a três principais aspectos: econômicos, sociais e ambientais. Este trabalho teve como objetivo principal identificar os fatores socioeconômicos determinantes do consumo de lenha por habitantes rurais do Centro de Endemismo Pernambuco (CEPE) , situado na Floresta Atlântica do nordeste do Brasil e avaliar o potencial da sustentabilidade da retirada de biomassa florestal por esta atividade. Foram aplicados 208 entrevistas semiest...
A Layer-specific Corticofugal Input to the Mouse Superior Colliculus.

Science.gov (United States)

Zurita, Hector; Rock, Crystal; Perkins, Jessica; Apicella, Alfonso Junior

2017-07-05

In the auditory cortex (AC), corticofugal projections arise from each level of the auditory system and are considered to provide feedback "loops" important to modulate the flow of ascending information. It is well established that the cortex can influence the response of neurons in the superior colliculus (SC) via descending corticofugal projections. However, little is known about the relative contribution of different pyramidal neurons to these projections in the SC. We addressed this question by taking advantage of anterograde and retrograde neuronal tracing to directly examine the laminar distribution, long-range projections, and electrophysiological properties of pyramidal neurons projecting from the AC to the SC of the mouse brain. Here we show that layer 5 cortico-superior-collicular pyramidal neurons act as bandpass filters, resonating with a broad peak at ∼3 Hz, whereas layer 6 neurons act as low-pass filters. The dissimilar subthreshold properties of layer 5 and layer 6 cortico-superior-collicular pyramidal neurons can be described by differences in the hyperpolarization-activated cyclic nucleotide-gated cation h-current (Ih). Ih also reduced the summation of short trains of artificial excitatory postsynaptic potentials injected at the soma of layer 5, but not layer 6, cortico-superior-collicular pyramidal neurons, indicating a differential dampening effect of Ih on these neurons. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.
Audiovisual speech integration in the superior temporal region is dysfunctional in dyslexia.

Science.gov (United States)

Ye, Zheng; Rüsseler, Jascha; Gerth, Ivonne; Münte, Thomas F

2017-07-25

Dyslexia is an impairment of reading and spelling that affects both children and adults even after many years of schooling. Dyslexic readers have deficits in the integration of auditory and visual inputs but the neural mechanisms of the deficits are still unclear. This fMRI study examined the neural processing of auditorily presented German numbers 0-9 and videos of lip movements of a German native speaker voicing numbers 0-9 in unimodal (auditory or visual) and bimodal (always congruent) conditions in dyslexic readers and their matched fluent readers. We confirmed results of previous studies that the superior temporal gyrus/sulcus plays a critical role in audiovisual speech integration: fluent readers showed greater superior temporal activations for combined audiovisual stimuli than auditory-/visual-only stimuli. Importantly, such an enhancement effect was absent in dyslexic readers. Moreover, the auditory network (bilateral superior temporal regions plus medial PFC) was dynamically modulated during audiovisual integration in fluent, but not in dyslexic readers. These results suggest that superior temporal dysfunction may underly poor audiovisual speech integration in readers with dyslexia. Copyright © 2017 IBRO. Published by Elsevier Ltd. All rights reserved.
The CT appearance of the superior intercostal veins

International Nuclear Information System (INIS)

Lund, G.

1982-01-01

The CT appearance of the superior intercostal veins is described. The veins are more frequently seen on the right side. The right superior intercostal vein should not be misinterpreted as a paraspinal mass when it is large or bulges into the contour of the right lung. A case of stenosis of the left brachiocephalic vein is shown, where the left superior intercostal vein serves as a collateral. (orig.)
A cost-effective process to prepare VO2 (M) powder and films with superior thermochromic properties

International Nuclear Information System (INIS)

Xiao, Xiudi; Zhang, Hua; Chai, Guanqi; Sun, Yaoming; Yang, Tao; Cheng, Haoliang; Chen, Lihua; Miao, Lei; Xu, Gang

2014-01-01

Graphical abstract: Combining codeposition and short time post annealing, VO 2 (M) with high quality and excellent phase transition performance is obtained. After mixing the VO 2 powder with acrylic resin, the composite films deposited on glass show superior visible transmission and solar modulation, which can be used as an excellent candidate of low cost smart window in energy saving field. - Highlights: • The VO 2 powder obtained by short time thermolysis method is high purity and crystallinity with superior phase transition performance. • The maximum decreasing efficiency of phase transition temperature is about −30 K/at% with w = 0.4 at%. • After mixing VO 2 powder with acrylic resin, the maximal visible transmission of the composite films is 48% and the transmission modulation at 2000 nm is 37.3% with phase transition temperature of 66.2 °C. • Though the phase transition performance is weakened by tungsten doping, the film prepared by 1.3 at% tungsten doped VO 2 still show superior transmission modulation about 26.4%, which means that it is a potential candidate as smart windows. - Abstract: VO 2 powder with superior phase transition performance was prepared by convenient thermolysis method. The results illustrated that VO 2 powder show high purity and crystallinity. VO 2 particles are transformed from cluster to quasi-sphere with the increase of annealing temperature. The DSC analysis proves that VO 2 show superior phase transition performance around 68 °C. The phase transition temperature can be reduced to 33.5 °C by 1.8 at% tungsten doping. The maximum decreasing efficiency of phase transition temperature is about −30 K/at% with w = 0.4 at%. After mixing VO 2 powder with acrylic resin, the maximal visible transmission of the composite thin films on glass is 48% and the transmission modulation at 2000 nm is 37.3% with phase transition temperature of 66.2 °C. Though the phase transition performance is weakened by tungsten doping, the film
El mundo funerario del Bronce Final en la fachada atlántica de la Península Ibérica. I Análisis de la documentación

Directory of Open Access Journals (Sweden)

Belén, María

1991-12-01

Full Text Available One of the most important characteristics of all the Atlantic part of the Iberian Peninsula during the final phase of the Later Bronze Age is the absence of burials. In fact, this characteristic is shared by all the Atlantic areas in Westem Europe. This phenomenon gets progressively older as one moves northward. Attempts have been made to fill this void with various discoveries. In this paper we deal with those graves considered as belonging to the Later Bronze Age and it has been demonstrated that they have been wrongly attributed to that date and that they are not true burials. As a result, the absence of burials must be explained by using hypothesis different from the search for cemeteries as traditionally understood.

La fachada atlántica de la Península Ibérica se caracteriza durante la fase final de la Edad del Bronce por una marcada ausencia de sepulturas. Esto es en realidad una norma común al mundo atlántico de toda Europa occidental, donde la desaparición de tumbas después del Bronce Medio es más antigua conforme más al norte. En el presente trabajo se aborda el estudio de las sepulturas consideradas del Bronce Final, y se llega a demostrar que se trata de atribuciones que no resisten una revisión critica profunda. En consecuencia, la ausencia de enterramientos debe explicarse elaborando hipótesis distintas a la búsqueda de necrópolis entendidas al estilo tradicional.
75 FR 28542 - Superior Resource Advisory Committee

Science.gov (United States)

2010-05-21

... Self-Determination Act (Pub. L. 110-343) and in compliance with the Federal Advisory Committee Act. The purpose of the meeting is to orient the new Superior Resource Advisory Committee members on their roles... following business will be conducted: Overview of the roles and responsibilities of the Superior Resource...
Superiority of Bessel function over Zernicke polynomial as base ...

Indian Academy of Sciences (India)

Abstract. Here we describe the superiority of Bessel function as base function for radial expan- sion over Zernicke polynomial in the tomographic reconstruction technique. The causes for the superiority have been described in detail. The superiority has been shown both with simulated data for Kadomtsev's model for ...
Bathymetry of Lake Superior

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Superior has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

A clausura feminina no mundo ibero atlântico: Pernambuco e Portugal nos séculos XVI ao XVIII

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Suely Creusa Cordeiro de Almeida

2012-01-01

Full Text Available Garantir a proteção da prole feminina sempre foi uma preocupação das famílias no mundo ibero-atlântico do Antigo Regime. Quando não era possível casar as moças com pessoas de qualidade, buscar o abrigo das casas de clausura para dar-lhes um estado foi uma opção e, em muitos casos, uma demonstração de afeto dos genitores. Os espaços de clausura assumiram múltiplas funções, pois tanto permitiam a almejada proteção e honra como possibilitavam uma vida devota para aquelas que tinham vocação. Mas, contraditoriamente, se constituíram em espaços de prisão para aquelas que de alguma forma romperam as fronteiras dentro das quais era permitido às mulheres se movimentarem. Assim, neste artigo tentamos demonstrar como as instituições de clausura fizeram parte do cotidiano das mulheres e das famílias fidalgas da sociedade do Antigo Regime.
Thyroid-Associated Orbitopathy with Superior Oblique Muscle Involvement: A Case Report

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Horng-Jiun Wu

2004-02-01

Full Text Available A 29-year-old male with a 5-year-history of hyperthyroidism complained of diplopia and proptosis. After subtotal thyroidectomy, he still had diplopia in a certain gaze. Computerized tomography showed inferior rectus muscle enlargement in the right eye and inferior rectus, medial rectus, and superior oblique muscle enlargement in the left eye. Ocular examination with the cover and uncover test revealed hyperphoria and exophoria in the left eye. The upward gaze of the right eye was more limited than that of the left eye. Since superior oblique muscle involvement in patients with thyroid orbitopathy is quite rare, we discuss its effect on ocular motility in patients with thyroid-associated orbitopathy.
Lignin-based carbon fibers: Carbon nanotube decoration and superior thermal stability

KAUST Repository

Xu, Xuezhu; Zhou, Jian; Jiang, Long; Lubineau, Gilles; Payne, Scott A.; Gutschmidt, David

2014-01-01

and the properties of the resultant products were studied and compared. The CF–CNT hybrid structure produced at 850 °C using a palladium catalyst showed the highest thermal stability, i.e., 98.3% residual weight at 950 °C. A mechanism for such superior thermal
The neural basis of human social values: evidence from functional MRI.

Science.gov (United States)

Zahn, Roland; Moll, Jorge; Paiva, Mirella; Garrido, Griselda; Krueger, Frank; Huey, Edward D; Grafman, Jordan

2009-02-01

Social values are composed of social concepts (e.g., "generosity") and context-dependent moral sentiments (e.g., "pride"). The neural basis of this intricate cognitive architecture has not been investigated thus far. Here, we used functional magnetic resonance imaging while subjects imagined their own actions toward another person (self-agency) which either conformed or were counter to a social value and were associated with pride or guilt, respectively. Imagined actions of another person toward the subjects (other-agency) in accordance with or counter to a value were associated with gratitude or indignation/anger. As hypothesized, superior anterior temporal lobe (aTL) activity increased with conceptual detail in all conditions. During self-agency, activity in the anterior ventromedial prefrontal cortex correlated with pride and guilt, whereas activity in the subgenual cingulate solely correlated with guilt. In contrast, indignation/anger activated lateral orbitofrontal-insular cortices. Pride and gratitude additionally evoked mesolimbic and basal forebrain activations. Our results demonstrate that social values emerge from coactivation of stable abstract social conceptual representations in the superior aTL and context-dependent moral sentiments encoded in fronto-mesolimbic regions. This neural architecture may provide the basis of our ability to communicate about the meaning of social values across cultural contexts without limiting our flexibility to adapt their emotional interpretation.
Prosopomorphic vessels from Moesia Superior

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Nikolić Snežana

2008-01-01

Full Text Available The prosopomorphic vessels from Moesia Superior had the form of beakers varying in outline but similar in size. They were wheel-thrown, mould-made or manufactured by using a combination of wheel-throwing and mould-made appliqués. Given that face vessels are considerably scarcer than other kinds of pottery, more than fifty finds from Moesia Superior make an enviable collection. In this and other provinces face vessels have been recovered from military camps, civilian settlements and necropolises, which suggests that they served more than one purpose. It is generally accepted that the faces-masks gave a protective role to the vessels, be it to protect the deceased or the family, their house and possessions. More than forty of all known finds from Moesia Superior come from Viminacium, a half of that number from necropolises. Although tangible evidence is lacking, there must have been several local workshops producing face vessels. The number and technological characteristics of the discovered vessels suggest that one of the workshops is likely to have been at Viminacium, an important pottery-making centre in the second and third centuries.
The Development of the Picture-Superiority Effect

Science.gov (United States)

Whitehouse, Andrew J. O.; Maybery, Murray T.; Durkin, Kevin

2006-01-01

When pictures and words are presented serially in an explicit memory task, recall of the pictures is superior. While this effect is well established in the adult population, little is known of the development of this picture-superiority effect in typical development. This task was administered to 80 participants from middle childhood to…
The Neuropsychology of Familiar Person Recognition from Face and Voice

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Guido Gainotti

2014-05-01

Full Text Available Prosopagnosia has been considered for a long period of time as the most important and almost exclusive disorder in the recognition of familiar people. In recent years, however, this conviction has been undermined by the description of patients showing a concomitant defect in the recognition of familiar faces and voices as a consequence of lesions encroaching upon the right anterior temporal lobe (ATL. These new data have obliged researchers to reconsider on one hand the construct of ‘associative prosopagnosia’ and on the other hand current models of people recognition. A systematic review of the patterns of familiar people recognition disorders observed in patients with right and left ATL lesions has shown that in patients with right ATL lesions face familiarity feelings and the retrieval of person-specific semantic information from faces are selectively affected, whereas in patients with left ATL lesions the defect selectively concerns famous people naming. Furthermore, some patients with right ATL lesions and intact face familiarity feelings show a defect in the retrieval of person-specific semantic knowledge greater from face than from name. These data are at variance with current models assuming: (a that familiarity feelings are generated at the level of person identity nodes (PINs where information processed by various sensory modalities converge, and (b that PINs provide a modality-free gateway to a single semantic system, where information about people is stored in an amodal format. They suggest, on the contrary: (a that familiarity feelings are generated at the level of modality-specific recognition units; (b that face and voice recognition units are represented more in the right than in the left ATLs; (c that in the right ATL are mainly stored person-specific information based on a convergence of perceptual information, whereas in the left ATLs are represented verbally-mediated person-specific information.
O uso de tecnologias móveis no ensino de ciências: uma experiência sobre o estudo dos ecossistemas costeiros da mata atlântica sul capixaba

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Guilherme Augusto Maciel Ribeiro

2016-12-01

Full Text Available O uso das tecnologias de informação e comunicação (TICs é objeto de discussão por grande parte dos educadores brasileiros. Se por um lado é reconhecido como potencial recurso em favor dos processos ensino-aprendizagem, por outro, desperta grandes polêmicas no contexto escolar. Dessa forma, a partir de uma sequência didática fundamentada nos Três Momentos Pedagógicos de Delizoikov et al. (2002, o presente trabalho teve por objetivo promover uma discussão sobre o uso das tecnologias móveis no estudo dos ecossistemas costeiros de Mata Atlântica com alunos de uma escola pública municipal de Marataízes/ ES. Como fonte de obtenção de dados, realizou-se pesquisas bibliográficas em fontes de papel e virtuais, por intermédio smartphones. Além disso, promoveu-se uma aula de campo nos ecossistemas costeiros de Mata Atlântica situados na área geoescolar, ocasião em que as tecnologias móveis atuaram como instrumentos para identificação da fauna e flora mediante o uso de aplicativo, além de servir para o registro audiovisual que, posteriormente, foi transformado em objetos educativos que foram expostos para a comunidade escolar. Foi diagnosticado o grande interesse dos estudantes em utilizar as tecnologias móveis em situações de aprendizagem, o que sinaliza para a importância do uso das TICs como ferramentas educacionais, reforçando a potencial articulação dos recursos tecnológicos nos processos de ensino e aprendizagem em Ciências.
Optimal decision procedures for satisfiability in fragments of alternating-time temporal logics

DEFF Research Database (Denmark)

Goranko, Valentin; Vester, Steen

2014-01-01

We consider several natural fragments of the alternating-time temporal logics ATL*and ATL with restrictions on the nesting between temporal operators and strate-gicquantifiers. We develop optimal decision procedures for satisfiability in these fragments, showing that they have much lower complexi...
Explaining the high voice superiority effect in polyphonic music: evidence from cortical evoked potentials and peripheral auditory models.

Science.gov (United States)

Trainor, Laurel J; Marie, Céline; Bruce, Ian C; Bidelman, Gavin M

2014-02-01

Natural auditory environments contain multiple simultaneously-sounding objects and the auditory system must parse the incoming complex sound wave they collectively create into parts that represent each of these individual objects. Music often similarly requires processing of more than one voice or stream at the same time, and behavioral studies demonstrate that human listeners show a systematic perceptual bias in processing the highest voice in multi-voiced music. Here, we review studies utilizing event-related brain potentials (ERPs), which support the notions that (1) separate memory traces are formed for two simultaneous voices (even without conscious awareness) in auditory cortex and (2) adults show more robust encoding (i.e., larger ERP responses) to deviant pitches in the higher than in the lower voice, indicating better encoding of the former. Furthermore, infants also show this high-voice superiority effect, suggesting that the perceptual dominance observed across studies might result from neurophysiological characteristics of the peripheral auditory system. Although musically untrained adults show smaller responses in general than musically trained adults, both groups similarly show a more robust cortical representation of the higher than of the lower voice. Finally, years of experience playing a bass-range instrument reduces but does not reverse the high voice superiority effect, indicating that although it can be modified, it is not highly neuroplastic. Results of new modeling experiments examined the possibility that characteristics of middle-ear filtering and cochlear dynamics (e.g., suppression) reflected in auditory nerve firing patterns might account for the higher-voice superiority effect. Simulations show that both place and temporal AN coding schemes well-predict a high-voice superiority across a wide range of interval spacings and registers. Collectively, we infer an innate, peripheral origin for the higher-voice superiority observed in human
Characteristics of neuronal lipofuscin in the superior temporal gyrus in Alzheimer's disease do not differ from non-diseased controls: a comparison with disease-related changes in the superior frontal gyrus.

Science.gov (United States)

Mountjoy, Christopher Q; Dowson, Jonathan H; Harrington, Charles; Cairns, Mary R; Wilton-Cox, Helen

2005-05-01

Neuronal lipofuscin characteristics in the superior temporal gyrus from 21 patients with Alzheimer's disease (AD) and from 18 age-matched non-diseased subjects were compared with previously reported findings from the superior frontal gyrus. A discriminant function analysis of lipofuscin characteristics in the superior temporal gyrus did not provide a significant predictive level for cases whose diagnoses were correctly classified (56.4%, P=0.63). In contrast, AD-related decrease in the number of smaller lipofuscin regions in the neurons of the frontal gyrus was confirmed, and the same analysis of lipofuscin characteristics in this region gave a significant predictive level for membership of the AD group of 86.6% (P<0.001). The findings indicate that changes in neuronal lipofuscin related to AD, which may reflect an increased rate of lipofuscin formation, show differences between neocortical regions. This study provides additional information on the distribution of neuropathological characteristics in AD.
Focos de Calor na Mata Atlântica do Estado do Rio de Janeiro

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Sara dos Santos Clemente

Full Text Available Resumo O estudo avaliou a ocorrência de focos de calor nos remanescentes da Mata Atlântica no estado do Rio de Janeiro, sob o aspecto climático. As informações obtidas da base de dados BDQueimadas, do período de junho de 1998 a dezembro de 2015, sofreram estatística descritiva, exploratória e paramétrica. As maiores ocorrências de focos de calor foram registradas nos meses de agosto, setembro e outubro e, os anos com os maiores registros foram nos ciclos 2010/2011 (16,06% e 2014/2015 (41, 24%, ambos somaram 57,30% da série temporal, referente a La Niña e El Niño nas categorias forte e fraco. O teste paramétrico mostrou uma repetição dos meses de abril e junho nos anos avaliados na série temporal de focos de calor. As regiões de Governo Centro-Sul Fluminense e Médio Paraíba registraram os maiores registros de focos de calor, segundo a avaliação espacial. Nossos resultados demonstram que o acesso a uma base gratuita de dados permite a prevenção de danos causados pelas queimadas e incêndios. Com a evolução dos sensores de temperatura e de algoritmos de tratamento de dados, será possível diferenciar os focos de calor que representam incêndios e queimadas daqueles que indicam, por exemplo, atividade de indústrias.
Superior vena thrombosis with peripartum dilated cardiomyopathy

International Nuclear Information System (INIS)

Munir, R.; Hussain, S.; Kayani, A.M.

2014-01-01

A 30 years multiparous female with history of emergency caesarean section 10 days back was referred to us with cough, severe breathlessness at rest, orthopnea with pain in neck and arms. Clinical examination revealed signs of heart failure. Echocardiography showed ejection fraction of 15%, with no right ventricular strain. A diagnosis of peripartum cardiomyopathy was made. Doppler ultrasound of neck veins showed bilateral internal jugular vein thrombosis. Subsequent multislice CT examination showed thrombosis of superior vena cava and both internal jugular veins (with collateral formation) and pulmonary embolism. There were no mediastinal abnormalities on the CT scan. Her thrombophilia screen and CT scan brain was normal. She was managed in collaboration with cardiologist. Following treatment with subcutaneous enoxaparin therapy and warfarin her symptoms of upper limb pain improved. She responded very well to medical therapy for heart failure with marked improvement of NYHA functional class. (author)
Superior semicircular canal dehiscence in relation to the superior petrosal sinus: a potential cause of pulsatile tinnitus

International Nuclear Information System (INIS)

Liu, Z.; Bi, W.; Li, J.; Li, Q.; Dong, C.; Zhao, P.; Lv, H.; Wang, Z.

2015-01-01

Aim: To examine the association between superior semicircular canal dehiscence (SSCD) and pulsatile tinnitus (PT). Materials and methods: Two SSCD groups included 408 unilateral persistent PT patients, and 511 controls undergoing head and neck dual-phase contrast-enhanced computed tomography (DP-CECT) for reasons other than PT. The prevalence of type I (no the superior petrosal sinus running through the dehiscence) and type II (superior semicircular canal dehiscence in relation to the superior petrosal sinus) SSCD was analysed using chi-square test. Results: SSCD was identified in 5.1% (21/408) of PT ears, significantly different from 2% (8/408) of non-PT ears and 0.7% (7/1022) of controls. There was no significant difference in SSCD prevalence between non-PT ears in the PT group and controls. In the PT group, 15/21 ears were type II SSCD; 6/21 ears were type I. Fifteen combined non-PT and control ears with SSCD included two type II and 13 type I SSCD. The prevalence of type II SSCD in PT ears was significantly higher than that of non-PT ears in both groups, and the prevalence of type I SSCD in PT ears was similar to that of non-PT ears in both groups. Conclusion: Compared with type I SSCD, there may be a causal relationship between type II SSCD and PT. -- Highlights: •The prevalence of type II SSCD in PT ears was significantly higher than that in non-PT ears in both the PT group and controls. •The prevalence of type I SSCD was similar among the PT ears and non-PT ears. •The superior petrosal sinus running through the dehiscence may be essential for SSCD to induce PT. •Venous phase CT images with bone window settings is the modality method to differentiate type II from type I SSCD
Cabo Verde, «Pousada» nos Caminhos do Atlântico. Interinfluências culturais num arquipélago miscigenado / Cape Verde, the «Pousada» of the Atlantico routes - cultural interinfluences in an interbred archipelago

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José Silva Évora

2014-12-01

Full Text Available Descoberto entre 1460 e 1462, o Arquipélago de Cabo Verde, situado no Oceano Atlântico, constituiu ao longo de vários séculos, escala obrigatória dos navios que faziam as ligações atlânticas entre os portos das Américas, da Europa e da África Graças a sua situação privilegiada, o espaço cabo-verdiano não foi um mero ponto de reabastecimento, mas também um importante ponto de cruzamento de culturas e de raças. Pretende-se, neste texto, abordar o papel que Cabo Verde teve no Atlântico incidindo, particularmente, na dimensão cultural resultante do contacto entre povos e culturas provenientes de diferentes paragens que se fixaram no arquipélago ou que por aqui passaram. Procurar-se-á evidenciar não só a importância que Cabo Verde teve enquanto ponto de passagem obrigatória mas, sobretudo, as contribuições que mais marcadamente se denunciaram, isto é, os apports culturais que mais se acentuaram em Cabo Verde, como processos recebidos dos estrangeiros que por estas ilhas se cruzaram.The Archipelago of Cape Verde, discovered between 1460 and 1462, and situated in the Atlantic Ocean, had been considered for centuries one of the mandatory harbours of the ships that sailed across the Atlantic to the ports of America, Europe and Africa. Because of its strategic location, Cape Verdean anchorage was considered not only the supplying point, but also an important melting pot of races and cultures. It is intended to highlight the role of Cape Verde in the Atlantic focusing particularly on the cultural aspect, as a result of the influence of cultures and origins of people who had settled in or had passed by the archipelago. It is also aimed to underline the importance of Cape Verde as a mandatory gateway but, above all, to underline the remarkable contributions, such as the cultural “apports” by which Cape Verde were gripped, like processes brought by the foreigners who crossed these islands.
Estrutura fitossociológica, diamétrica e hipsométrica da comunidade arbórea de um fragmento de floresta atlântica no Município de Moreno, Pernambuco, Brasil

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Anderson Pedro Bernardina Batista

2013-04-01

Full Text Available Este trabalho teve como objetivo caracterizar a estrutura fitossociológica da comunidade arbórea da borda de um fragmento de floresta atlântica no município de Moreno, Pernambuco. O estudo foi desenvolvido em um fragmento de Mata Atlântica com área de aproximadamente 9 ha, pertencente à Fazenda Haras Casa Branca, localizado no município de Moreno, Pernambuco. Foram alocadas sistematicamente 10 parcelas de 10 x 25 m, equidistante em 20 m, distribuída em 2 linhas, a distância entre as linhas foi de 25 m, cada linha foi composta por 5 parcelas, totalizando 2500 m². As analises foram estabelecidas, com base no nível de inclusão com circunferência a altura do peito a 1,30 m do solo (CAP ≥ 15 cm e, os dados de altura (H através de estimativaspara o estudo fitossociológico. Para avaliar a diversidade florística em nível de espécie, utilizou-se o índice de Shannon (H’. No total, foram amostrados 247 indivíduos arbóreos, pertencentes a 23 famílias botânicas, 30 gêneros e 43 espécies. A Artocarpus heterophyllus Lam. e a Tapirira guianensis Aubl., foram as duas espécies que apresentaram o maior valor de importância respectivamente.
Have the Guests Perceived Superior Value?

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Levyda Levyda

2017-11-01

Full Text Available This research aimed to describe guests’ perceived value by using a multidimensional approach. From previous research, guests’ perceived value consisted of some functional value, emotional value, and social value. Based on guest experience, and functional value consisted of physical evidence, guest room, food and beverage, hotel staff, and price. This research was conducted in four-star hotels in Jakarta. The respondents were the guests who had stayed in four-star hotels. The number of the respondent was 405. The data were obtained by using self-administered questionnaires. This research shows that guests have not perceived superior value. Some of the values and the necessary efforts need to be improved.
Acute superior vena caval syndrome with airway obstruction following elective mediastinoscopy.

LENUS (Irish Health Repository)

Power, C K

2012-02-03

A 47-year-old female patient had a subclinical superior vena caval syndrome which developed into the \\'full blown\\' acute condition when she was placed into the left lateral position after mediastinoscopy. She developed airway obstruction requiring urgent re-intubation and subsequent admission to the intensive care unit. This subclinical condition might have been suspected pre-operatively if closer attention had been paid to the history, physical examination and review of the computerised axial tomography scan: she had a history of intermittent dysponea, wheeze and cough which was worse on waking and improved as the day progressed, she had a positive Pemberton\\'s sign and the computerised axial tomography scan showed that the lesion was encroaching on the superior vena cava.
Ileocolic Arteriovenous Fistula with Superior Mesenteric Vein Aneurism: Endovascular Treatment

International Nuclear Information System (INIS)

Gregorio, Miguel Angel de; Gimeno, Maria Jose; Medrano, Joaquin; Schoenholz, Caudio; Rodriguez, Juan; D'Agostino, Horacio

2004-01-01

We report a case of a venous aneurysm secondary to an acquired ileocolic arteriovenous fistula in a 64-year-old woman with recurrent abdominal pain and history of appendectomy. The aneurysm was diagnosed by ultrasound and computed tomography. Angiography showed an arteriovenous fistula between ileocolic branches of the superior mesenteric artery and vein. This vascular abnormality was successfully treated with coil embolization
Motor mechanisms of vertical fusion in individuals with superior oblique paresis.

Science.gov (United States)

Mudgil, Ananth V; Walker, Mark; Steffen, Heimo; Guyton, David L; Zee, David S

2002-06-01

We wanted to determine the mechanisms of motor vertical fusion in patients with superior oblique paresis and to correlate these mechanisms with surgical outcomes. Ten patients with superior oblique paresis underwent 3-axis, bilateral, scleral search coil eye movement recordings. Eye movements associated with fusion were analyzed. Six patients had decompensated congenital superior oblique paresis and 4 had acquired superior oblique paresis. All patients with acquired superior oblique paresis relied predominantly on the vertical rectus muscles for motor fusion. Patients with congenital superior oblique paresis were less uniform in their mechanisms for motor fusion: 2 patients used predominantly the oblique muscles, 2 patients used predominantly the vertical recti, and 2 patients used predominantly the superior oblique in the hyperdeviated eye and the superior rectus in the hypodeviated eye. The last 2 patients developed the largest changes in torsional eye alignment relative to changes in vertical eye alignment and were the only patients to develop symptomatic surgical overcorrections. There are 3 different mechanisms for vertical fusion in individuals with superior oblique paresis, with the predominant mechanism being the vertical recti. A subset of patients with superior oblique paresis uses predominantly the superior oblique muscle in the hyperdeviated paretic eye and the superior rectus muscle in the fellow eye for fusion. This results in intorsion of both eyes, causing a large change in torsional alignment. The consequent cyclodisparity, in addition to the existing vertical deviation, may make fusion difficult. The differing patterns of vertical fusional vergence may have implications for surgical treatment.

Marketing at Superior: Theory meets application in the field

International Nuclear Information System (INIS)

Jeffrey, S.

1992-01-01

The field marketing practices of Superior Propane in rural Ontario are illustrated. In the Smithville area, Superior's customer base consists of agricultural, industrial, commercial, and residential customers, plus a large market for auto propane. A 6,900 ft 2 showroom presents a representative selection of the wide range of appliances using propane. Superior's Smithville branch is one of the top five in Canada, in terms of volume. To expand business beyond its traditional branch structures, Superior has an Independent Partners Program which is aimed at all phases of business including independent sales agents, conversions, propane fuel stops, appliance installations, and building contractors. In Keswick, located in the summer resort region on the south shore of Lake Simcoe, Superior's base load is 40% commercial and 20% each agricultural, residential, and automotive. A new 4,100 ft 2 showroom was recently constructed with separate display units for each appliance. The new building has brought increases in auto propane and appliance sales. The different branches of Superior Propane are able to tailor their marketing programs according to local needs by choosing the appropriate programs from those available at head office. 5 figs
Neurocognitive decrements are present in intellectually superior schizophrenia

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Anja eVaskinn

2014-05-01

Full Text Available Data suggests that individuals with schizophrenia (SZ and superior intelligence can present without specific neurocognitive deficits. However, neurocognitive decrements, defined as worse cognition than expected, have been reported in practically all schizophrenia cases. This study investigated if neurocognitive decrements are present in intellectually superior SZ by comparing the neuropsychological profile of SZ cases with IQ-matched healthy controls (HC across intellectual level. Participants with SZ and HCs were stratified into three IQ-groups; intellectually low (IQ 80-95; SZ n = 65 & HC n = 13, intellectually normal (IQ = 100-115; SZ n = 111 & HC n = 115 and intellectually superior (IQ > 120; SZ n = 20 & HC n = 50. A repeated measures multivariate analysis of co-variance compared performance on eight selected neuropsychological tests across IQ-strata and diagnostic group. Differences in clinical characteristics and social functioning in SZ across IQ-strata were investigated with multivariate and univariate analyses of variance. Intellectually superior SZ participants scored within normal limits, but had neurocognitive decrements compared to superior HCs. Decrements were of the same magnitude as in the low and normal IQ-strata. Levels of functional impairments and clinical characteristics in participants with SZ did not differ significantly across IQ-strata. Results indicate that neurocognitive decrements are present in intellectually superior SZ to the same extent as in intellectually low and intellectually normal SZ, supporting the notion that SZ is a neurocognitive disorder. Similar levels of social functional deficits and clinical symptoms suggest similar disease processes in SZ across intellectual level.
O impacto do ENSO e do dipolo do Atlântico no nordeste do Brasil

Directory of Open Access Journals (Sweden)

1998-01-01

Full Text Available IMPACT DANS LE NORDESTE DU BRÉSIL DE LENSO ET DU DIPÔLE DE LATLANTIQUE. Nous avons tout dabord passé rapidement en revue les phénomènes El Niño/Oscillation du Sud et dipôle de lAtlantique en fonction de leur impact au Brésil et surtout dans la partie septentrionale du Nordeste du Brésil. Les anomalies de précipitations sont surtout provoquées par les variations de la SST dans les océans Atlantique tropical et Pacifique équatorial. On montre la réponse de latmosphère tropicale pour les circulations méridionales (Hadley et zonales (Walker, qui saffaiblissent anormalement les années sèches, alors que les déplacements verticaux saccélèrent les années humides. Hors des latitudes tropicales, des phénomènes de blocage, associés à des trains dondes de Rossby dans le Pacifique changent la puissance et la trajectoire des jet-stream dans les deux hémisphères, modifiant également la trajectoire et lintensité des systèmes de fronts froids et provoquent des pluies torrentielles et des inondations dans le Sud-est et le Sud du Brésil. Se ha realizado una breve revisión de los fenómenos El Niño Oscilación del Sur y el Dipolo Atlántico con relación a sus impactos en Brasil, especialmente en la parte noreste del Noreste de Brasil (NEB. Las anomalías en las lluvias son causadas por las variaciones del Temperatura Superficial del Mar (SST en los Atlántico Tropical y Pacífico Ecuatorial. La respuesta atmosférica tropical se muestra como cambios en la circulación meridional (Hadley y zonal (Walker con un descenso anómalo en los años secos y un acelerado movimiento vertical durante los años con exceso de precipitación. En las latitudes extra-tropicales, un fenómeno de bloqueo asociado con un séquito de ondas de Rossby desde el Pacífico cambia la magnitud y trayectoria de las Corrientes en Chorro en ambos hemisferios, también cambiando la trayectoria e intensidad de los sistemas frontales fr
High-yielding Wheat Varieties Harbour Superior Plant Growth Promoting-Bacterial Endophytes

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Mehwish Yousaf

2017-06-01

Full Text Available Background and Objective: The purpose of this study was to compare the endophytic microbial flora of different wheat varieties to check whether a better yielding variety also harbours superior plant growth promoting bacteria. Such bacteria are helpful in food biotechnology as their application can enhance the yield of the crop.Material and Methods: Three wheat varieties (Seher, Faisalabad and Lasani were selected, Seher being the most superior variety. endophytic bacteria were isolated from the histosphere of the leaves and roots at different growth phases of the plants. The isolates were analyzed for plant growth promoting activities. Isolates giving best results were identified through 16S rRNA gene sequencing. Statistical analysis was done using Microsoft Excel 2013. All the experiments were conducted in triplicates.Results and Conclusion: The endophytes of Seher variety showed maximum plant growth promoting abilities. Among the shoot endophytes, the highest auxin production was shown by Seher isolate SHHP1-3 up to 51.9μg ml-1, whereas in the case of root endophytes, the highest auxin was produced by SHHR1-5 up to 36 μg ml-1. The bacteria showing significant plant growth promoting abilities were identified by 16S rRNA sequencing. Bacillus, Proteobacteria and Actinobacteria species were the dominant bacteria showing all the traits of plant growth promotion. It can be concluded that Seher variety harbours superior plant growth promoting endophytes that must be one of the reasons for its better growth and yield as compared to the other two varieties. The investigated results support possible utilization of the selected isolates in wheat growth promotion with respect to increase in agro-productivity. The application of such bacteria could be useful to enhance wheat yield and can help in food biotechnology.Conflict of interest: The authors declare no conflict of interest.
Duplication of Inferior Gluteal Artery and Course of Superior Gluteal Artery Through the Lumbosacral Trunk

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Satheesha Nayak B

2017-07-01

Full Text Available Internal iliac artery (IIA shows great deal of variations in its branching pattern. The knowledge of its variant branches is required for successful surgical, orthopedic, plastic surgery and radiological procedures. We observed variations of some of the branches of right IIA in an adult male cadaver. The iliolumbar artery originated from the main trunk of the IIA. After this, IIA divided into anterior and posterior divisions. The posterior division gave lateral sacral and superior gluteal arteries. Superior gluteal artery pierced the lumbosacral trunk before leaving the pelvis. The anterior division further divided into anterior and posterior trunks. Anterior trunk gave rise to superior vesical, inferior vesical, middle rectal and obturator arteries. The posterior trunk gave two inferior gluteal arteries and an internal pudendal artery.
Why do employees follow their superiors' instructions? Identification of the reasons to comply with superiors' will in a group of Polish employees.

Science.gov (United States)

Wójcik, Aleksandra; Merecz-Kot, Dorota; Andysz, Aleksandra

2015-01-01

Managers influence the way organization works as well as the functioning of subordinates - in the context of their work life but non-professional functioning as well e.g., attitude towards work-life balance or taking care of health. We focused on the superior-subordinate relation, referring to social power bases theory by Raven. We identified the reasons why subordinates decide to follow their superiors' orders and determined specific styles of compliance with superiors' will. Understanding why employees listen to their superiors may be valuable in the context of supporting healthy organizational climate and atmosphere of co-operation or communicating values - for example, as regards taking care of own health. We discussed the results referring to the issue of influencing employees in the context of their health behavior. The research involved 100 Polish employees, aged 28 years old on average, who filled in the Interpersonal Power Inventory by Raven et al. for subordinates in a Polish adaptation by Zaleski. The questionnaire includes 11 subscales referring to power bases. Based on the cluster analysis results, we recognized people who complied because of: all kinds of power bases (typical for 46% of the respondents); the respect for superiors' professionalism (34%); and formal/objective reasons (20%). Employees differ in terms of their styles of compliance. Their motives to comply with superiors' instructions constitute compilations of power bases. The superiors' awareness of the reasons why their employees decide to follow orders is necessary for successful management. It may motivate employees to work but also to take care of their own health. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.
Superior vesical fissure concealed by giant omphalocele: A case report

OpenAIRE

Hayek, Danial; Massanyi, Eric; Mancuso, Melissa; Krepkovich, Katherine; Garrison, Aaron

2016-01-01

Omphalocele is an abdominal wall defect characterized by exteriorization of abdominal viscera that is covered by a membrane. Omphalocele has a well-known association with chromosome abnormalities. Here we present a case of a superior vesical fissure (SVF) initially disguised as a giant omphalocele in a newborn with trisomy 18. We also show unique prenatal imaging and discuss the importance and limitations of prenatal genetic testing.
The role of hyperthyroidism as the predisposing factor for superior sagittal sinus thrombosis.

Science.gov (United States)

Hwang, Jong-Uk; Kwon, Ki-Young; Hur, Jin-Woo; Lee, Jong-Won; Lee, Hyun-Koo

2012-09-01

Superior sagittal sinus thrombosis (SSST) is an uncommon cause of stroke, whose symptoms and clinical course are highly variable. It is frequently associated with a variety of hypercoagulable states. Coagulation abnormalities are commonly seen in patients with hyperthyroidism. To the best of our knowledge, there are few reports on the association between hyperthyroidism and cerebral venous thrombosis. We report on a 31-year-old male patient with a six-year history of hyperthyroidism who developed seizure and mental deterioration. Findings on brain computed tomography (CT) showed multiple hemorrhages in the subcortical area of both middle frontal gyrus and cerebral digital subtraction angiography (DSA) showed irregular intra-luminal filling defects of the superior sagittal sinus. These findings were consistent with hemorrhagic transformation of SSST. Findings on clinical laboratory tests were consistent with hyperthyroidism. In addition, our patient also showed high activity of factors IX and XI. The patient received treatment with oral anticoagulant and prophylthiouracil. His symptoms showed complete improvement. A follow-up cerebral angiography four weeks after treatment showed a recanalization of the SSS. In conclusion, findings of our case indicate that hypercoagulability may contribute to development of SSST in a patient with hyperthyroidism.
An in-depth cognitive examination of individuals with superior face recognition skills.

Science.gov (United States)

Bobak, Anna K; Bennetts, Rachel J; Parris, Benjamin A; Jansari, Ashok; Bate, Sarah

2016-09-01

Previous work has reported the existence of "super-recognisers" (SRs), or individuals with extraordinary face recognition skills. However, the precise underpinnings of this ability have not yet been investigated. In this paper we examine (a) the face-specificity of super recognition, (b) perception of facial identity in SRs, (c) whether SRs present with enhancements in holistic processing and (d) the consistency of these findings across different SRs. A detailed neuropsychological investigation into six SRs indicated domain-specificity in three participants, with some evidence of enhanced generalised visuo-cognitive or socio-emotional processes in the remaining individuals. While superior face-processing skills were restricted to face memory in three of the SRs, enhancements to facial identity perception were observed in the others. Notably, five of the six participants showed at least some evidence of enhanced holistic processing. These findings indicate cognitive heterogeneity in the presentation of superior face recognition, and have implications for our theoretical understanding of the typical face-processing system and the identification of superior face-processing skills in applied settings. Copyright © 2016 Elsevier Ltd. All rights reserved.
When the Wedding March becomes sad: Semantic memory impairment for music in the semantic variant of primary progressive aphasia.

Science.gov (United States)

Macoir, Joël; Berubé-Lalancette, Sarah; Wilson, Maximiliano A; Laforce, Robert; Hudon, Carol; Gravel, Pierre; Potvin, Olivier; Duchesne, Simon; Monetta, Laura

2016-12-01

Music can induce particular emotions and activate semantic knowledge. In the semantic variant of primary progressive aphasia (svPPA), semantic memory is impaired as a result of anterior temporal lobe (ATL) atrophy. Semantics is responsible for the encoding and retrieval of factual knowledge about music, including associative and emotional attributes. In the present study, we report the performance of two individuals with svPPA in three experiments. NG with bilateral ATL atrophy and ND with atrophy largely restricted to the left ATL. Experiment 1 assessed the recognition of musical excerpts and both patients were unimpaired. Experiment 2 studied the emotions conveyed by music and only NG showed impaired performance. Experiment 3 tested the association of semantic concepts to musical excerpts and both patients were impaired. These results suggest that the right ATL seems essential for the recognition of emotions conveyed by music and that the left ATL is involved in binding music to semantics. They are in line with the notion that the ATLs are devoted to the binding of different modality-specific properties and suggest that they are also differentially involved in the processing of factual and emotional knowledge associated with music.
Factores de riesgo del comportamiento y preparación de aficionados inscritos a carreras atléticas de fondo de 18 a 64 años en Bogotá, Colombia, 2014

OpenAIRE

Ramírez-Góngora, María del Pilar; Prieto-Alvarado, Franklyn Edwin

2016-01-01

La participación en carreras atléticas de calle ha aumentado; esto requiere detectar riesgos previos al esfuerzo físico. El objetivo fue identificar factores de riesgo del comportamiento y preparación física de inscritos a una carrera. Estudio transversal en aficionados de 18-64 años. Encuesta digital con módulos de IPAQ, Par-Q+ y STEPwise. Muestreo aleatorio sistemático con n = 510, para una inactividad física esperada de 35% (±5%). Se evaluó nivel de actividad física, consumo de alcohol (pe...
Influência antrópica em três ecótonos floresta/campo da Floresta Atlântica do Sudeste do Brasil: análise de micropartículas carbonizadas em solos superficiais

OpenAIRE

De Oliveira, Paulo Eduardo; Passacantili, Maria da Glória Silva Bispo

2010-01-01

Através da quantificação de micropartículas carbonizadas em solos superficiais, determinou-se a intensidade de incêndios recentes em três áreas da Floresta Atlântica com mosaico floresta/campo: duas na Serra do Mar, São Paulo e uma na Reserva Natural Vale do Rio Doce, Linhares, Espírito Santo. As micropartículas foram quantificadas em três classes de tamanho: 51 µm. Os dados mostram que as três áreas estiveram recentemente sujeitas a incêndios. Os campos da Reserva ...
Aging and the Picture Superiority Effect in Recall.

Science.gov (United States)

Winograd, Eugene; And Others

1982-01-01

Compared verbal and visual encoding using the picture superiority effect. One experiment found an interaction between age and type of material. In other experiments, the picture superiority effect was found in both age groups with no interaction. Performing a semantic-orienting task had no effect on recall. (Author/RC)
Fatal pericardial tamponade after superior vena cava stenting.

NARCIS (Netherlands)

Ploegmakers, M.J.M.; Rutten, M.J.C.M.

2009-01-01

We discuss a fatal complication of percutaneous superior vena cava (SVC) self-expandable stent placement in a patient with superior vena cava syndrome (SVCS). The SVCS was caused by a malignant mediastinal mass with total occlusion of the SVC. Twenty-four hours after the procedure, the patient died
Relação entre a precipitação no setor leste do nordeste do Brasil e a temperatura da superfície nos oceanos Atlântico e Pacífico Relationship between the rainfall in eastern Northeast Brazil and the sea surface temperature in the Atlantic and Pacific oceans

Directory of Open Access Journals (Sweden)

Geber Barbosa de A. Moura

2000-01-01

Full Text Available Objetivou-se, com este estudo, relacionar a precipitação no setor leste do Nordeste do Brasil (NEB com a Temperatura da Superfície do Mar (TSM nos oceanos Atlântico (área do Dipolo e Pacífico, no período de 1945 a 1985. Através dessa análise pode-se ter uma idéia de como os episódios com anomalias de TSM influenciam na pluviometria da costa leste do NEB (que se estende do Rio Grande do Norte à Bahia. Os resultados mais significativos foram os seguintes: em anos com gradiente de temperatura negativo no Atlântico, aqui também chamado gradiente desfavorável, as chuvas ocorreram abaixo da média de longo período nos estados do Rio Grande do Norte (84% e Paraíba (74%; em anos com gradiente de temperatura neutro, as chuvas foram normais ou acima do normal na Paraíba (73%; em anos com gradiente de temperatura positivo no Atlântico, aqui também chamado gradiente favorável, as chuvas ocorreram na média e acima da média de longo período, nos Estados de Alagoas (73%, Sergipe (73% e Bahia (73%.The main purpose of this study was to relate the rainfall in eastern Northeast Brazil (NEB with the sea surface temperature (SST in the Atlantic (Dipole area and Pacific oceans during the 1945-1985 period. This analysis shows how anomalous SST events influence precipitation in the eastern part of NEB, from the states of Rio Grande do Norte through to Bahia. The main significant results were: in years with a negative temperature gradient in the Atlantic, the rainfall was below the long term mean in Rio Grande do Norte (84% and Paraíba (74%; in years with neutral gradient, the rainfall was normal or above normal in Paraíba (73%; in years with positive temperature gradient (south minus north, hereby called favorable gradient, the rainfall was above the long term mean, in Alagoas (73%, Sergipe (73% and Bahia (73%.
Perturbation resilience and superiorization of iterative algorithms

International Nuclear Information System (INIS)

Censor, Y; Davidi, R; Herman, G T

2010-01-01

Iterative algorithms aimed at solving some problems are discussed. For certain problems, such as finding a common point in the intersection of a finite number of convex sets, there often exist iterative algorithms that impose very little demand on computer resources. For other problems, such as finding that point in the intersection at which the value of a given function is optimal, algorithms tend to need more computer memory and longer execution time. A methodology is presented whose aim is to produce automatically for an iterative algorithm of the first kind a 'superiorized version' of it that retains its computational efficiency but nevertheless goes a long way toward solving an optimization problem. This is possible to do if the original algorithm is 'perturbation resilient', which is shown to be the case for various projection algorithms for solving the consistent convex feasibility problem. The superiorized versions of such algorithms use perturbations that steer the process in the direction of a superior feasible point, which is not necessarily optimal, with respect to the given function. After presenting these intuitive ideas in a precise mathematical form, they are illustrated in image reconstruction from projections for two different projection algorithms superiorized for the function whose value is the total variation of the image
Tratamento endovascular da síndrome da veia cava superior: relato de caso e revisão da literatura Endovascular treatment of superior vena cava syndrome: case report and review of the literature

Directory of Open Access Journals (Sweden)

Marco Aurélio Cardozo

2006-12-01

Full Text Available Relatamos o caso de uma paciente portadora de síndrome da veia cava superior sintomática de origem benigna tratada pela técnica endovascular. A angiorressonância magnética pré-angioplastia evidenciou extensa trombose do tronco braquiocefálico esquerdo, da veia subclávia esquerda e obstrução da veia cava superior junto ao tronco braquiocefálico direito. A paciente realizou mastectomia radical 2 anos antes, associada à quimioterapia e radioterapia do tórax. Foram realizados angioplastia venosa e implante de stent expansível por balão. O resultado foi satisfatório, com alívio imediato dos sintomas devido à recanalização da veia cava superior e do tronco braquiocefálico direito. Foi instituída anticoagulação oral. A paciente permanece sem recidiva dos sintomas após 8 meses de acompanhamento. O tratamento endovascular é uma alternativa terapêutica com baixa morbidade e resultado satisfatório a médio prazo que pode ser oferecida aos pacientes portadores de síndrome da veia cava superior.We report a case of a patient with symptomatic benign superior vena cava syndrome treated by the endovascular technique. The angiographic resonance before angioplasty showed extensive thrombosis of the left brachiocephalic trunk, left subclavian vein and superior vena cava obstruction close to the right brachiocephalic trunk. The patient underwent radical mastectomy 2 years ago with adjuvant chemotherapy and chest radiotherapy. Venous angioplasty and balloon-expandable stenting were performed. Satisfactory result was obtained with immediate relief of symptoms due to recanalization of the right brachiocephalic trunk and superior vena cava. Oral anticoagulation was initiated. The patient is still asymptomatic after 8 months of follow-up. The endovascular treatment is a therapeutic alternative with low morbidity and satisfactory mid-term results that can be offered to patients with superior vena cava syndrome.
The anterior-ventrolateral temporal lobe contributes to boosting visual working memory capacity for items carrying semantic information.

Science.gov (United States)

Chiou, Rocco; Lambon Ralph, Matthew A

2018-04-01

Working memory (WM) is a buffer that temporarily maintains information, be it visual or auditory, in an active state, caching its contents for online rehearsal or manipulation. How the brain enables long-term semantic knowledge to affect the WM buffer is a theoretically significant issue awaiting further investigation. In the present study, we capitalise on the knowledge about famous individuals as a 'test-case' to study how it impinges upon WM capacity for human faces and its neural substrate. Using continuous theta-burst transcranial stimulation combined with a psychophysical task probing WM storage for varying contents, we provide compelling evidence that (1) faces (regardless of familiarity) continued to accrue in the WM buffer with longer encoding time, whereas for meaningless stimuli (colour shades) there was little increment; (2) the rate of WM accrual was significantly more efficient for famous faces, compared to unknown faces; (3) the right anterior-ventrolateral temporal lobe (ATL) causally mediated this superior WM storage for famous faces. Specifically, disrupting the ATL (a region tuned to semantic knowledge including person identity) selectively hinders WM accrual for celebrity faces while leaving the accrual for unfamiliar faces intact. Further, this 'semantically-accelerated' storage is impervious to disruption of the right middle frontal gyrus and vertex, supporting the specific and causative contribution of the right ATL. Our finding advances the understanding of the neural architecture of WM, demonstrating that it depends on interaction with long-term semantic knowledge underpinned by the ATL, which causally expands the WM buffer when visual content carries semantic information. Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.
Guilt-selective functional disconnection of anterior temporal and subgenual cortices in major depressive disorder.

Science.gov (United States)

Green, Sophie; Lambon Ralph, Matthew A; Moll, Jorge; Deakin, John F W; Zahn, Roland

2012-10-01

Proneness to overgeneralization of self-blame is a core part of cognitive vulnerability to major depressive disorder (MDD) and remains dormant after remission of symptoms. Current neuroanatomical models of MDD, however, assume general increases of negative emotions and are unable to explain biases toward emotions entailing self-blame (eg, guilt) relative to those associated with blaming others (eg, indignation). Recent functional magnetic resonance imaging (fMRI) studies in healthy participants have shown that moral feelings such as guilt activate representations of social meaning within the right superior anterior temporal lobe (ATL). Furthermore, this area was selectively coupled with the subgenual cingulate cortex and adjacent septal region (SCSR) during the experience of guilt compared with indignation. Despite its psychopathological importance, the functional neuroanatomy of guilt in MDD is unknown. To use fMRI to test the hypothesis that, in comparison with control individuals, participants with remitted MDD exhibit guilt-selective SCSR-ATL decoupling as a marker of deficient functional integration. Case-control study from May 1, 2008, to June 1, 2010. Clinical research facility. Twenty-five patients with remitted MDD (no medication in 16 patients) with no current comorbid Axis I disorders and 22 controls with no personal or family history of MDD. Between-group difference of ATL coupling with a priori SCSR region of interest for guilt vs indignation. We corroborated the prediction of a guilt-selective reduction in ATL-SCSR coupling in MDD vs controls (familywise error-corrected P=.001 over the region of interest) and revealed additional medial frontopolar, right hippocampal, and lateral hypothalamic areas of decoupling while controlling for medication status and intensity of negative emotions. Lower levels of ATL-SCSR coupling were associated with higher scores on a validated measure of overgeneralized self-blame (67-item Interpersonal Guilt Questionnaire
Superior vesical fissure concealed by giant omphalocele: A case report

Directory of Open Access Journals (Sweden)

Danial Hayek

2016-11-01

Full Text Available Omphalocele is an abdominal wall defect characterized by exteriorization of abdominal viscera that is covered by a membrane. Omphalocele has a well-known association with chromosome abnormalities. Here we present a case of a superior vesical fissure (SVF initially disguised as a giant omphalocele in a newborn with trisomy 18. We also show unique prenatal imaging and discuss the importance and limitations of prenatal genetic testing.

Globalització i internacionalització en l'ensenyament superior

OpenAIRE

de Wit, J.W.M (Hans)

2011-01-01

La internacionalització és un fenomen cada cop més important i generalitzat en l'ensenyament superior en els àmbits institucional, nacional i internacional. La globalització de les nostres economies i societats ha tingut un impacte en l'ensenyament superior dels últims vint-i-cinc anys, i el mateix ensenyament superior s'ha convertit en un actor en l'economia de coneixement global, en la recerca i en altres àrees que impliquen aspectes com la c...
Efeito do extrativismo seletivo de espécies arbóreas da Floresta Atlântica de Tabuleiros na matéria orgânica e outros atributos do solo

OpenAIRE

Kindel,A.; Barbosa,P. M. S.; Pérez,D. V.; Garay,I.

1999-01-01

Pesquisas comparativas em fragmentos florestais que visem avaliar o efeito de diferentes impactos antrópicos sobre o solo são praticamente inexistentes. Assim, o objetivo principal deste trabalho foi caracterizar e comparar os horizontes orgânicos do solo em relação a algumas variáveis pedológicas sob mata primária e sob capoeira de idade avançada, com mais de 40 anos, resultado da seleção e extração de indivíduos arbóreos de valor comercial. Para isso, foram estudadas duas áreas de Mata Atlâ...
Mamíferos terrestres em um remanescente de Mata Atlântica, Paraná, Brasil

Directory of Open Access Journals (Sweden)

Márcia Regina Wolfart

2013-10-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2013v26n4p111 O grau de ameaça e a importância ecológica dos mamíferos terrestres evidenciam a necessidade da constante realização de pesquisas com o intuito de acrescentar informações ao conhecimento atual sobre esse tema. Este estudo teve por objetivo fornecer uma lista de espécies de mamíferos terrestres em um remanescente de Mata Atlântica localizado no sudoeste do estado do Paraná. A riqueza de espécies e a frequência de ocorrência foram estudadas de abril a outubro de 2009, utilizando dois métodos: observação direta e registro de vestígios. Foram registrados 20 táxons distribuídos em sete ordens: Artiodactyla, Carnivora, Didelphimorphia, Lagomorpha, Primates, Rodentia e Xenarthra. Dentre estes, quatro táxons foram registrados tanto por observação direta quanto pelo registro de vestígios e os demais foram registrados somente por meio de vestígios. As espécies com ocorrência mais frequente foram Didelphis sp. (30,6% e Cerdocyon thous (25,6%. Dos 20 táxons registrados, Leopardus pardalis, Leopardus tigrinus e Cuniculus paca constam como vulneráveis no Livro Vermelho da Fauna Ameaçada no Estado do Paraná. Apesar de pequena, a área de estudo deve auxiliar na disponibilidade de alimento e abrigo para a mastofauna, representando um importante elemento da paisagem regional.
Superior voice recognition in a patient with acquired prosopagnosia and object agnosia.

Science.gov (United States)

Hoover, Adria E N; Démonet, Jean-François; Steeves, Jennifer K E

2010-11-01

Anecdotally, it has been reported that individuals with acquired prosopagnosia compensate for their inability to recognize faces by using other person identity cues such as hair, gait or the voice. Are they therefore superior at the use of non-face cues, specifically voices, to person identity? Here, we empirically measure person and object identity recognition in a patient with acquired prosopagnosia and object agnosia. We quantify person identity (face and voice) and object identity (car and horn) recognition for visual, auditory, and bimodal (visual and auditory) stimuli. The patient is unable to recognize faces or cars, consistent with his prosopagnosia and object agnosia, respectively. He is perfectly able to recognize people's voices and car horns and bimodal stimuli. These data show a reverse shift in the typical weighting of visual over auditory information for audiovisual stimuli in a compromised visual recognition system. Moreover, the patient shows selectively superior voice recognition compared to the controls revealing that two different stimulus domains, persons and objects, may not be equally affected by sensory adaptation effects. This also implies that person and object identity recognition are processed in separate pathways. These data demonstrate that an individual with acquired prosopagnosia and object agnosia can compensate for the visual impairment and become quite skilled at using spared aspects of sensory processing. In the case of acquired prosopagnosia it is advantageous to develop a superior use of voices for person identity recognition in everyday life. Copyright © 2010 Elsevier Ltd. All rights reserved.
A influência dos gases estufa no oceano Atlântico Sul: estudo climatológico The effect of greenhouse gases on South Atlantic Ocean: a climatological study

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Andréa S. Taschetto

2003-01-01

Full Text Available O presente trabalho tem como objetivo analisar os impactos climáticos no oceano Atlântico Sul causados pela industrialização e conseqüente aumento da emissão de gases estufa para a atmosfera. Para isso utilizou-se o modelo numérico acoplado National Center for Atmospheric Research - Community Climate System Model, sob duas condições climáticas: a primeira para o período pré-industrial e, a segunda, para o pós-industrial. Os resultados mostraram aquecimento da superfície do mar na climatologia do período pós-industrial em relação ao pré-industrial, principalmente durante a primavera quando alcança 2,5°C ao sul do continente sulamericano. O comportamento climatológico do transporte barotrópico e da pressão ao nível do mar também mostraram diferenças significativas de um período para o outro, sugerindo a intensificação da Alta Subtropical, Giro Subtropical e Corrente Circumpolar Antártica. Sazonalmente, as diferenças no transporte barotrópico foram maiores no outono, exibindo valores superiores a 25 Sv, em torno de 0°E, 55°S. A pressão atmosférica ao nível do mar foi levemente fortalecida no verão e outono, com intensificação máxima de 2mbar, e enfraquecida no inverno do período pré-industrial para a simulação do presente.The purpose of this study is to analyze the impact of the increase in greenhouse gases caused by the industrialization in the climate of the South Atlantic Ocean. We used the National Center for Atmospheric Research - Community Climate System Model. Two climate conditions were used to force the model, one relative to the pre-industrial levels of greenhouse gases emissions and the other to the levels of the present days. The results have shown a significant sea surface warming in pos-industrial climatology in relation to the pre-industrial one, mainly during the spring season when it reaches 2.5°C south of South America. The climatological behavior of the barotropic streamfunction and
Superior Mesenteric Artery Syndrome: An Infrequent Complication of Scoliosis Surgery

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Metin Keskin

2014-01-01

Full Text Available Superior mesenteric artery syndrome is a rare condition that causes a proximal small intestinal obstruction due to contraction of the angle between the superior mesenteric artery and the aorta. Scoliosis surgery is one of the 15 reasons for superior mesenteric artery syndrome, which can present with acute or chronic manifestations. Although conservative treatment is usually possible, surgical treatment is required in certain cases that cannot be treated using conservative methods. In this paper, we describe a patient who developed superior mesenteric artery syndrome after scoliosis surgery and was treated with duodenojejunostomy due to failure and complications of conservative treatment.
Análise multivariada de Argissolos da faixa atlântica brasileira Multivariate analysis of Argisols of the Brazilian Atlantic coast

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Waldir de Carvalho Junior

2008-10-01

Full Text Available A faixa atlântica brasileira possui extrema diversidade ambiental, onde é expressiva a ocorrência de Argissolos, descritos e identifcados em diversos estudos, sem que tenham sido exauridas as possibilidades de interpretações. O objetivo deste estudo foi avaliar, por meio da análise multivariada, as principais diferenças nos atributos físicos e químicos de Argissolos da faixa atlântica brasileira. Foram analisados 91 perfis de solos oriundos de levantamentos pedológicos realizados pelo Projeto RADAMBRASIL, agrupados em três domínios geomorfológicos distintos: Planaltos Soerguidos, Planaltos Rebaixados e Tabuleiros Costeiros, por meio da análise de componentes principais e análise de função discriminante. Para isso, foram selecionadas 14 variáveis para identificar as peculiaridades de cada grupo geomorfológico e suas principais diferenças. A análise dos componentes principais demonstrou que os cinco primeiros componentes respondem por aproximadamente 70 % da variação dos dados. A análise integrada confirmou que os Argissolos dos Planaltos Soerguidos são mais rasos, associando maiores taxas de erosão com menor espessura dos horizontes Bt, e são quimicamente pobres, embora mais rejuvenescidos e rasos. Já os Argissolos nos Planaltos Rebaixados, submetidos a um clima mais seco e, ou, sazonal que os situados nos Planaltos Soerguidos e Tabuleiros Costeiros, mostram-se menos intemperizados e com maior CTC. As análises realizadas (componentes principais e análise discriminante permitem melhor entender as relações geomorfopedológicas dos Argissolos nos diferentes domínios estudados.The Brazilian Atlantic coast have has extreme environmental diversity, where is expressive the occurrence of Argisols, described and identified in several studies, that do not have exhausted the possibilities of interpretations. The objective of this study was to evaluate the main differences in the physical and chemical properties of Argisols
Caracterización de la población del corregimiento de Salgar (Atlántico, Colombia) como fase preliminar para la implementación de un Modelo de Atención Primaria en Salud, 2014

OpenAIRE

Hernando Baquero-Latorre; Ana Liliana Ríos-García

2015-01-01

Objetivo:Caracterizar la población del corregimiento de Salgar (Atlántico) como fase pre-liminar para la implementación de un Modelo de Atención Primaria en Salud. Materiales y método: Investigación descriptiva transversal de ámbito comunitario. Fuente primaria, se recolectó con tarjeta familiar en el lugar de residencia. Se realizaron intervenciones en salud con docentes y estudiantes de medicina y enfermería, con base en riesgos identificados.Resultados:Se caracterizó a 418 familias, 7...
Caracterización de la población del corregimiento de Salgar (Atlántico, Colombia) como fase preliminar para la implementación de un Modelo de Atención Primaria en Salud, 2014

OpenAIRE

Baquero-Latorre, Hernando; Ríos-García, Ana Liliana

2015-01-01

Objetivo: Caracterizar la población del corregimiento de Salgar (Atlántico) como fase preliminar para la implementación de un Modelo de Atención Primaria en Salud. Materiales y método: Investigación descriptiva transversal de ámbito comunitario. Fuente primaria, se recolectó con tarjeta familiar en el lugar de residencia. Se realizaron intervenciones en salud con docentes y estudiantes de medicina y enfermería, con base en riesgos identificados. Resultados: Se caracterizó a 418 familias, 78.9...
Superior dislocation hip with anterior column acetabular fracture ...

African Journals Online (AJOL)

Superior variety of anterior dislocation of the hip is a rare injury. Its occurrence with acetabular fractures has been documented infrequently. We report a case of superior dislocation of the hip with anterior column acetabular fracture. Open reduction of the hip and internal fixation of the fracture was carried out using a twin ...
Superior mesenteric artery syndrome: case report | Jani | East ...

African Journals Online (AJOL)

Superior Mesenteric Artery Syndrome (SMAS) is caused by trapping of the third part of the duodenum between Superior Mesenteric Artery (SMA) and aorta as result of narrowing of the angle between the two vessels due to acute loss of mesenteric fat which is secondary to rapid weight loss. A fifteen year old caucasian ...
EFFECTS OF INDIVIDUAL CHARACTERISTICS AND ORGANIZATIONAL CONTEXT ON SUPERIORS' USE OF CONFLICT STYLES AND SUBORDINATES' SATISFACTION WITH SUPERVISION

Directory of Open Access Journals (Sweden)

Lee Kim Lian

2008-01-01

Full Text Available Data from 139 respondents from major industries showed that subordinates were more satisfied with their superiors' supervision through the exercise of integrating, compromising and obliging styles. On the contrary, subordinates who perceived their superiors as primarily using dominating and avoiding styles viewed them as incompetent in supervision and thus lowering their level of satisfaction with supervision. Among the conflict handling styles, integrating was most correlated with organic structure. The organic structure was found to be positively correlated with subordinates' satisfaction. These results implied that organic structure can be a potent force in maintaining organizational stability. The exercise of dominating style was found to be only marginally correlated with superior's age. Superior rank in lower hierarchy level was found to have a negative impact, albeit marginally on the exercise of dominating style. The present results also seemed to suggest that subordinates tend to be less satisfied with superiors with wider span of control.
Mondini-like malformation mimicking otosclerosis and superior semicircular canal dehiscence.

Science.gov (United States)

Karlberg, M; Annertz, M; Magnusson, M

2006-05-01

In 2003, it was reported that superior semicircular canal dehiscence can mimic otosclerosis because of low-frequency bone conduction hearing gain and dissipation of air-conducted acoustic energy through the dehiscence. We report the case of a 17-year-old girl with left-sided combined hearing loss thought to be due to otosclerosis. Bone conduction thresholds were -10 dB at 250 and 500 Hz and she had a 40 dB air-bone gap at 250 Hz. When a tuning fork was placed at her ankle she heard it in her left ear. Acoustic reflexes and vestibular evoked myogenic potentials could be elicited bilaterally. Imaging of the temporal bones showed no otosclerosis, superior semicircular canal dehiscence or large vestibular aqueduct, but a left-sided, Mondini-like dysplasia of the cochlea with a modiolar deficiency could be seen. Mondini-like cochlear dysplasia should be added to the causes of inner-ear conductive hearing loss.
[Neuromolecular mechanism of the superiority illusion].

Science.gov (United States)

Yamada, Makiko

2014-01-01

The majority of individuals evaluate themselves as above average. This is a cognitive bias called "the superiority illusion". This illusory self-evaluation helps us to have hopes for the future, and has been central to the process of human evolution. Possessing this illusion is also important for mental health, as depressed people appear to have a more realistic perception of themselves, dubbed "depressive realism". Our recent study revealed the spontaneous brain activity and central dopaminergic neurotransmission that generate this illusion, using resting-state fMRI and PET. A functional connectivity between the frontal cortex and striatum, regulated by inhibitory dopaminergic neurotransmission, determines individual levels of the superiority illusion. We further revealed that blocking the dopamine transporter, which enhanced the level of dopamine, increased the degree of the superiority illusion. These findings suggest that dopamine acts on striatal dopamine receptors to suppress fronto-striatal functional connectivity, leading to disinhibited, heuristic, approaches to positive self-evaluation. These findings help us to understand how this key aspect of the human mind is biologically determined, and will suggest treatments for depressive symptoms by targeting specific molecules and neural circuits.
Biomechanical Effects of Acromioplasty on Superior Capsule Reconstruction for Irreparable Supraspinatus Tendon Tears.

Science.gov (United States)

Mihata, Teruhisa; McGarry, Michelle H; Kahn, Timothy; Goldberg, Iliya; Neo, Masashi; Lee, Thay Q

2016-01-01

Acromioplasty is increasingly being performed for both reparable and irreparable rotator cuff tears. However, acromioplasty may destroy the coracoacromial arch, including the coracoacromial ligament, consequently causing a deterioration in superior stability even after superior capsule reconstruction. The purpose of this study was to investigate the effects of acromioplasty on shoulder biomechanics after superior capsule reconstruction for irreparable supraspinatus tendon tears. The hypothesis was that acromioplasty with superior capsule reconstruction would decrease the area of subacromial impingement without increasing superior translation and subacromial contact pressure. Controlled laboratory study. Seven fresh-frozen cadaveric shoulders were evaluated using a custom shoulder testing system. Glenohumeral superior translation, the location of the humeral head relative to the glenoid, and subacromial contact pressure and area were compared among 4 conditions: (1) intact shoulder, (2) irreparable supraspinatus tendon tear, (3) superior capsule reconstruction without acromioplasty, and (4) superior capsule reconstruction with acromioplasty. Superior capsule reconstruction was performed using the fascia lata. Compared with the intact shoulder, the creation of an irreparable supraspinatus tear significantly shifted the humeral head superiorly in the balanced muscle loading condition (without superior force applied) (0° of abduction: 2.8-mm superior shift [P = .0005]; 30° of abduction: 1.9-mm superior shift [P = .003]) and increased both superior translation (0° of abduction: 239% of intact [P = .04]; 30° of abduction: 199% of intact [P = .02]) and subacromial peak contact pressure (0° of abduction: 308% of intact [P = .0002]; 30° of abduction: 252% of intact [P = .001]) by applying superior force. Superior capsule reconstruction without acromioplasty significantly decreased superior translation (0° of abduction: 86% of intact [P = .02]; 30° of abduction: 75
Mixed cultures of Kimchi lactic acid bacteria show increased cell ...

African Journals Online (AJOL)

ufuoma

anaerobic organisms that are highly resistant to salts. Probiotic cultures for use in ... kimchi have a superior ability to decompose and utilize nutrients, and show ... citrate, 5 g sodium acetate, 1 g Tween, 2 g K2HPO4, 0.2 g. MgSO4•7H2O, 0.2 g ...
Ligation of superior mesenteric vein and portal to splenic vein anastomosis after superior mesenteric-portal vein confluence resection during pancreaticoduodenectomy - Case report.

Science.gov (United States)

Tang, Jianlin; Abbas, Jihad; Hoetzl, Katherine; Allison, David; Osman, Mahamed; Williams, Mallory; Zelenock, Gerald B

2014-12-01

62 year old Caucasian female with pancreatic head mass abutting the superior mesenteric vein (SMV) presented with fine needle aspiration biopsy confirmed diagnosis of ductal adenocarcinoma. CT scan showed near complete obstruction of portal vein and large SMV collateral development. After 3 months of neoadjuvant therapy, her portal vein flow improved significantly, SMV collateral circulation was diminished. Pancreaticoduodenectomy (PD) and superior mesenteric portal vein (SMPV) confluence resection were performed; A saphenous vein interposition graft thrombosed immediately. The splenic vein remnant was distended and adjacent to the stump of the portal vein. Harvesting an internal jugular vein graft required extra time and using a synthetic graft posed a risk of graft thrombosis or infection. As a result, we chose to perform a direct anastomosis of the portal and splenic vein in a desperate situation. The anastomosis decompressed the mesenteric venous system, so we then ligated the SMV. The patient had an uneventful postoperative course, except transient ascites. She redeveloped ascites more than one year later. At that time a PET scan showed bilateral lung and right femur metastatic disease. She expired 15 months after PD. The lessons we learned are (1) Before SMPV confluence resection, internal jugular vein graft should be ready for reconstruction. (2) Synthetic graft is an alternative for internal jugular vein graft. (3) Direct portal vein to SMV anastomosis can be achieved by mobilizing liver. (4) It is possible that venous collaterals secondary to SMV tumor obstruction may have allowed this patient's post-operative survival.
Firm-specific information, analysts’ superiority and investment value

Institute of Scientific and Technical Information of China (English)

Lu; Li; Erjia; Yang; Tusheng; Xiao

2014-01-01

Using a sample of Chinese security analysts’recommendations from 2005 to2010,we examine the source of analysts’superiority and the investment value of their recommendations.Using a calendar-time portfolio approach,we find that,on average,analysts’recommendations are valuable and that analysts are better at analyzing and transferring firm-specific information than market-wide or industry-level information.In addition,we show that the investment value of recommendations increases as firm-specific information becomes more important in stock pricing.Our empirical results are useful in guiding investors and helping brokerage houses to evaluate the output of research departments.
Novel anammox bacteria and nitrogen loss from Lake Superior

DEFF Research Database (Denmark)

Crowe, Sean A.; Treusch, Alexander H.; Forth, Michael

2017-01-01

and diversity of anammox bacteria in the world's largest freshwater lake - Lake Superior. We found that anammox performed by previously undiscovered bacteria is an important contributor to sediment N2 production. We observed striking differences in the anammox bacterial populations found at different locations...... within Lake Superior and those described from other locations. Our data thus reveal that novel anammox bacteria underpin N-loss from Lake Superior, and if more broadly distributed across inland waters would play an important role in continental N-cycling and mitigation of fixed nitrogen transfer from...
Caminhos atlânticos memória, patrimônio e representações da escravidão na Rota dos Escravos Atlantic routes memory, heritage and slave representations on the Slave Route

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Ana Lucia Araújo

2009-06-01

Full Text Available O artigo examina as diferentes representações da escravidão e do tráfico atlântico presentes na Rota dos Escravos da cidade de Ajudá, na atual República do Benim. Busca-se entender como estas representações exprimem e reconstroem diferentes memórias do passado escravista atlântico. Tenta-se mostrar que a Rota dos Escravos é um lugar construído, onde se percebem duas imagens do escravo, a da vítima absoluta e a do resistente. O percurso proposto sugere dois níveis de leitura: de um lado, os monumentos constituem uma encenação, cujo objetivo é emocionar os descendentes da diáspora (principalmente os norteamericanos, que têm recursos financeiros para fazer turismo em países estrangeiros; de outro lado, as estátuas concebidas pelo artista Cyprien Tokoudagaba e os templos existentes na Rota dos Escravos posicionam o visitante no cruzamento de diferentes memórias e diferentes histórias da escravidão, onde a vitimização dá lugar à afirmação cultural que valoriza a arte, as religiões e as culturas africanas.This paper examines the different representations of slavery and the slave trade found on the Slaves Route in Ouidah, present Republic of Benin. It aims at understanding how these representations express and reconstruct different memories of the Atlantic slave past. The paper shows that Ouidah's Slaves Route is a constructed space, where we can find two different images of enslaved Africans: the absolute victim and the resister. The proposed itinerary suggests two levels of interpretation: on the one hand, the monuments staging the past aim at emotionally move the diaspora (especially African Americans who have the financial resources to travel abroad; on the other hand, the statues conceived by Cyprien Tokoudagaba and the existing vodun temples on the Slaves Route place the visitor at the crossing position between different memories and different histories of slavery, where victimization is replaced by cultural

Abastecendo plantations: A inserção do charque fabricado em Pelotas (RS no comércio atlântico das carnes e a sua concorrência com os produtores platinos (século XIX

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Jonas Moreira VARGAS

2014-12-01

Full Text Available O charque (carne-seca constituiu alimento fundamental na dieta dos escravos das plantations açucareiras e cafeeiras e das populações pobres das cidades litorâneas do Brasil. O artigo analisa a inserção do charque fabricado em Pelotas (Rio Grande do Sul no mercado atlântico, assim como a concorrência com os produtores uruguaios e argentinos e como as guerras travadas na região da fronteira sul afetaram o comércio da mercadoria. Durante a segunda metade do século XIX, a carne-seca rio-grandense foi perdendo espaço no comércio atlântico para o produto platino, mais saboroso e de preço mais acessível. Na busca de novos mercados consumidores para além do Brasil e de Cuba, tanto os rio-grandenses quanto os produtores do Rio da Prata não conseguiram penetrar no mercado britânico, em que o paladar era mais exigente e se associava o charque à comida de escravos. Com o tempo, os argentinos conseguiram modernizar sua indústria com remessa de carne congelada para a Europa, ao passo que os rio-grandenses sucumbiram diante dessa nova concorrência e das exigências dos consumidores, não resistindo à derradeira crise que afetou o setor na década de 1880.
Screening local Lactobacilli from Iran in terms of production of lactic acid and identification of superior strains

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Fatemeh Soleimanifard

2015-12-01

Full Text Available Introduction: Lactobacilli are a group of lactic acid bacteria that their final product of fermentation is lactic acid. The objective of this research is selection of local Lactobacilli producing L (+ lactic acid. Materials and methods: In this research the local strains were screened based on the ability to produce lactic acid. The screening was performed in two stages. The first stage was the titration method and the second stage was the enzymatic method. The superior strains obtained from titration method were selected to do enzymatic test. Finally, the superior strains in the second stage (enzymatic which had the ability to produce L(+ lactic acid were identified by biochemical tests. Then, molecular identification of strains was performed by using 16S rRNA sequencing. Results: In this study, the ability of 79 strains of local Lactobacilli in terms of production of lactic acid was studied. The highest and lowest rates of lactic acid production was 34.8 and 12.4 mg/g. Superior Lactobacilli in terms of production of lactic acid ability of producing had an optical isomer L(+, the highest levels of L(+ lactic acid were with 3.99 and the lowest amount equal to 1.03 mg/g. The biochemical and molecular identification of superior strains showed that strains are Lactobacillus paracasei. Then the sequences of 16S rRNA of superior strains were reported in NCBI with accession numbers KF735654، KF735655، KJ508201and KJ508202. Discussion and conclusion: The amounts of lactic acid production by local Lactobacilli were very different and producing some of these strains on available reports showed more products. The results of this research suggest the use of superior strains of Lactobacilli for production of pure L(+ lactic acid.
Investigation on Superior Performance by Fractional Controller for Cart-Servo Laboratory Set-Up

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Ameya Anil Kesarkar

2014-01-01

Full Text Available In this paper, an investigation is made on the superiority of fractional PID controller (PI^alpha D^beta over conventional PID for the cart-servo laboratory set-up. The designed controllers are optimum in the sense of Integral Absolute Error (IAE and Integral Square Error (ISE. The paper contributes in three aspects: 1 Acquiring nonlinear mathematical model for the cart-servo laboratory set-up, 2 Designing fractional and integer order PID for minimizing IAE, ISE, 3 Analyzing the performance of designed controllers for simulated plant model as well as real plant. The results show a significantly superior performance by PI^alpha D^beta as compared to the conventional PID controller.
Silencing of human T-cell leukemia virus type I gene transcription by epigenetic mechanisms

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Mueller Nancy

2005-10-01

Full Text Available Abstract Background Human T-cell leukemia virus type I (HTLV-I causes adult T-cell leukemia (ATL after a long latent period. Among accessory genes encoded by HTLV-I, the tax gene is thought to play a central role in oncogenesis. However, Tax expression is disrupted by several mechanims including genetic changes of the tax gene, deletion/hypermethylation of 5'-LTR. To clarify the role of epigenetic changes, we analyzed DNA methylation and histone modification in the whole HTLV-I provirus genome. Results The gag, pol and env genes of HTLV-I provirus were more methylated than pX region, whereas methylation of 5'-LTR was variable and 3'-LTR was not methylated at all. In ATL cell lines, complete DNA methylation of 5'-LTR was associated with transcriptional silencing of viral genes. HTLV-I provirus was more methylated in primary ATL cells than in carrier state, indicating the association with disease progression. In seroconvertors, DNA methylation was already observed in internal sequences of provirus just after seroconversion. Taken together, it is speculated that DNA methylation first occurs in the gag, pol and env regions and then extends in the 5' and 3' directions in vivo, and when 5'-LTR becomes methylated, viral transcription is silenced. Analysis of histone modification in the HTLV-I provirus showed that the methylated provirus was associated with hypoacetylation. However, the tax gene transcript could not be detected in fresh ATL cells regardless of hyperacetylated histone H3 in 5'-LTR. The transcription rapidly recovered after in vitro culture in such ATL cells. Conclusion These results showed that epigenetic changes of provirus facilitated ATL cells to evade host immune system by suppressing viral gene transcription. In addition, this study shows the presence of another reversible mechanism that suppresses the tax gene transcription without DNA methylation and hypoacetylated histone.
Dotyophycus pacificum I. A. Abbott (Liagoraceae, Rhodophyta a new record for the Atlantic Ocean Dotyophycus pacificum Abbott (Liagoraceae, Rhodophyta nova referência para o oceano Atlântico

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José Marcos de Castro Nunes

2011-03-01

Full Text Available Specimens of Dotyophycus pacificum I. A. Abbott were found during a survey of Rhodophyta on the coast of Bahia state. The samples were taken from 23-36 meters depth and the specimens found were studied in detail and compared to other morphologically similar species. This is the first time that the genus Dotyophycus is cited for the Atlantic Ocean.Durante estudo sobre as rodofíceas do litoral do estado da Bahia foram encontrados exemplares de Dotyophycus pacificum Abbott em coletas realizadas a 23-36 metros de profundidade. Os espécimes foram estudados detalhadamente e comparados a espécies morfologicamente semelhantes. Esta é a primeira ocorrência de D. pacificum para o oceano Atlântico.
Influência antrópica em três ecótonos floresta/campo da Floresta Atlântica do Sudeste do Brasil: análise de micropartículas carbonizadas em solos superficiais

OpenAIRE

De Oliveira,Paulo Eduardo; Passacantili,Maria da Glória Silva Bispo

2010-01-01

Através da quantificação de micropartículas carbonizadas em solos superficiais, determinou-se a intensidade de incêndios recentes em três áreas da Floresta Atlântica com mosaico floresta/campo: duas na Serra do Mar, São Paulo e uma na Reserva Natural Vale do Rio Doce, Linhares, Espírito Santo. As micropartículas foram quantificadas em três classes de tamanho: < 25 µm, de 26 a 5 0µm e > 51 µm. Os dados mostram que as três áreas estiveram recentemente sujeitas a incêndios. Os campos da Reser...
Recovery from emotion recognition impairment after temporal lobectomy

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Francesca eBenuzzi

2014-06-01

Full Text Available Mesial temporal lobe epilepsy (MTLE can be associated with emotion recognition impairment that can be particularly severe in patients with early onset seizures (1-3. Whereas there is growing evidence that memory and language can improve in seizure-free patients after anterior temporal lobectomy (ATL (4, the effects of surgery on emotional processing are still unknown. We used functional magnetic resonance imaging (fMRI to investigate short-term reorganization of networks engaged in facial emotion recognition in MTLE patients. Behavioral and fMRI data were collected from six patients before and after ATL. During the fMRI scan, patients were asked to make a gender decision on fearful and neutral faces. Behavioral data demonstrated that two patients with early-onset right MTLE were impaired in fear recognition while fMRI results showed they lacked specific activations for fearful faces. Post-ATL behavioral data showed improved emotion recognition ability, while fMRI demonstrated the recruitment of a functional network for fearful face processing. Our results suggest that ATL elicited brain plasticity mechanisms allowing behavioral and fMRI improvement in emotion recognition.
Prenatal VPA exposure and changes in sensory processing by the superior colliculus

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Georgia eDendrinos

2011-10-01

Full Text Available Disorders involving dysfunctional sensory processing are characterized by an inability to filter sensory information, particularly simultaneously arriving multimodal inputs. We examined the effects of prenatal exposure to valproic acid (VPA, a teratogen linked to sensory dysfunction, on the behavior of juvenile and adult rats, and on the anatomy of the superior colliculus, a critical multisensory integration center in the brain. VPA-exposed rats showed deficits in colliculus-dependent behaviors including startle response, prepulse inhibition and nociceptive responses. Some deficits reversed with age. Stereological analyses revealed that colliculi of VPA-treated rats had significantly fewer parvalbumin-positive neurons, a subset of GABAergic cells. These results suggest that prenatal VPA treatment affects the development of the superior colliculus and leads to persistent anatomical changes evidenced by aberrant behavior in tasks that require sensory processing.
Superior intellectual ability in schizophrenia: neuropsychological characteristics.

Science.gov (United States)

MacCabe, James H; Brébion, Gildas; Reichenberg, Abraham; Ganguly, Taposhri; McKenna, Peter J; Murray, Robin M; David, Anthony S

2012-03-01

It has been suggested that neurocognitive impairment is a core deficit in schizophrenia. However, it appears that some patients with schizophrenia have intelligence quotients (IQs) in the superior range. In this study, we sought out schizophrenia patients with an estimated premorbid Intelligence Quotient (IQ) of at least 115 and studied their neuropsychological profile. Thirty-four patients meeting diagnostic criteria for schizophrenia or schizoaffective disorder, as defined by the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV), with mean estimated premorbid IQ of 120, were recruited and divided into two subgroups, according to whether or not their IQ had declined by at least 10 points from their premorbid estimate. Their performance on an extensive neuropsychological battery was compared with that of 19 IQ-matched healthy controls and a group of 16 "typical" schizophrenia patients with estimated premorbid IQ Schizophrenia patients whose estimated premorbid and current IQ both lay in the superior range were statistically indistinguishable from IQ-matched healthy controls on all neurocognitive tests. However, their profile of relative performance in subtests was similar to that of typical schizophrenia patients. Patients with superior premorbid IQ and evidence of intellectual deterioration had intermediate scores. Our results confirm the existence of patients meeting DSM-IV diagnostic criteria for schizophrenia who have markedly superior premorbid intellectual level and appear to be free of gross neuropsychological deficits. We discuss the implications of these findings for the primacy of cognitive deficits in schizophrenia.
Right superior vena cava draining into the left atrium

Energy Technology Data Exchange (ETDEWEB)

Calcagni, Giulio; Sidi, Daniel; Bonnet, Damien [University Rene Descartes-Paris 5, Department of Paediatric Cardiology, Hopital Necker-Enfants Malades, Paris (France); Batisse, Alain [Institut de Puericulture et de Perinatalogie, Paris (France); Vouhe, Pascal [University Rene Descartes-Paris 5, Department of Paediatric Cardiac Surgery, Hopital Necker-Enfants Malades, Paris (France); Ou, Phalla [University Rene Descartes-Paris 5, Department of Paediatric Cardiology, Hopital Necker-Enfants Malades, Paris (France); University Rene Descartes-Paris 5, Department of Pediatric Radiology, Hopital Necker-Enfants Malades, Paris (France)

2008-08-15

The right superior vena cava draining into the left atrium is a rare malformation causing cyanosis and clubbing in patients in whom no other signs of congenital heart defect are present. Diagnosis may be difficult as cyanosis may be mild and the anomaly is not always easily detectable by echocardiography. For this reason we report a 13-month-old male in whom we confirmed the clinical and echocardiographic suspicion of anomalous drainage of the right superior vena cava using multidetector CT. This allowed successful surgical reconnection of the right superior vena cava to the right atrium. (orig.)
Right superior vena cava draining into the left atrium

International Nuclear Information System (INIS)

Calcagni, Giulio; Sidi, Daniel; Bonnet, Damien; Batisse, Alain; Vouhe, Pascal; Ou, Phalla

2008-01-01

The right superior vena cava draining into the left atrium is a rare malformation causing cyanosis and clubbing in patients in whom no other signs of congenital heart defect are present. Diagnosis may be difficult as cyanosis may be mild and the anomaly is not always easily detectable by echocardiography. For this reason we report a 13-month-old male in whom we confirmed the clinical and echocardiographic suspicion of anomalous drainage of the right superior vena cava using multidetector CT. This allowed successful surgical reconnection of the right superior vena cava to the right atrium. (orig.)
Ecocardiografia transesofágica e diagnóstico intraoperatório de veia cava superior esquerda persistente Ecocardiografía transesofágica y diagnóstico intraoperatorio de vena cava superior izquierda persistente Transesophageal echocardiography and intraoperative diagnosis of persistent left superior vena cava

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Alexander Alves da Silva

2009-12-01

persistent left superior vena cava has an incidence of 0.5% in the normal population, but in patients with congenital cardiopathy its incidence ranges from 3% to 10%. The objective of this report was to present a case of intraoperative diagnosis with transesophageal echocardiography and to emphasize the importance of its routine use in surgical procedures for correction of congenital cardiopathies. CASE REPORT: This is a 16-year old male patient, ASA II, with a diagnosis of superior sinus venosus interatrial communication (IAC with partial anomalous drainage of the pulmonary veins scheduled for the surgical correction of the cardiopathy. After induction of general anesthesia, transesophageal echocardiography (TEE showed initially a dilation of the right cardiac chambers, a 17-mm superior sinus venosus IAC, anomalous drainage of the right superior pulmonary vein draining into the right superior vena cava (SVC, and dilation of the coronary sinus raising the possibility of persistent left superior vena cava. To confirm this suspicion, 10 mL of NS (works as a contrast in echocardiography were injected in the venous access of the left arm, and microbubbles crossing the coronary sinus were observed immediately afterwards confirming the diagnosis of persistent left superior vena cava. CONCLUSIONS: Routine intraoperative transesophageal echocardiography in patients with congenital cardiopathy is a fundamental auxiliary method, not only for the surgeon, often having direct influence on the surgical technique used, but also for the anesthesiologist, who can get useful information for the hemodynamic management of the patient.
Eutrophication monitoring for Lake Superior's Chequamegon ...

Science.gov (United States)

A priority for the Lake Superior CSMI was to identify susceptible nearshore eutrophication areas. We developed an integrated sampling design to collect baseline data for Lake Superior’s Chequamegon Bay to understand how nearshore physical processes and tributary loading relate to observed chlorophyll concentrations. Sampling included ship-based water samples combined with vertical CTD casts, continuous in situ towing and data collected from an autonomous underwater glider. Sampling was conducted during June, July and September. The glider collected regional data as part of three extended missions in Lake Superior over the same periods. During the study, two significant storm events impacted the western end of Lake Superior; the first occurred during July 11-12, with 8-10 inches of rain in 24hrs, and the second on July 21 with winds in excess of 161 km/h. Using GIS software, we organized these diverse temporal data sets along a continuous time line with temporally coincident Modis Satellite data to visualize surface sediment plumes in relation to water quality measurements. Preliminary results suggest that both events impacted regional water quality, and that nearshore physical forces (upwelling and currents) influenced the spatial variability. Results comparing in situ measures with remotely sensed images will be discussed. not applicable
La educación superior como eje del desarrollo

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Benjamín Afanador Vargas

2003-11-01

Full Text Available Este documento analiza cómo ha sido la interacción entre la política educativa y las estrategiasde desarrollo en Colombia, a lo largo del siglo XX. Se presenta una revisión del estadoactual de la educación en Colombia, tanto a nivel de educación básica y media, como de laeducación superior. Para ello se toman tres criterios básicos que son la cobertura, la calidady la equidad en el acceso a la educación. Para el caso de la educación superior, se comparala oferta de cupos con la demanda existente, se clasifican los distintos segmentos en que sedivide la educación superior y se hace una breve reseña sobre el recurso humano con que secuenta en la educación superior colombiana. Así mismo, se expone una conceptualización delos retos que enfrenta la educación superior, sobretodo para lograr una cohesión de la sociedad,evitando que algunos de sus integrantes sean excluidos y permitiendo que todos losestamentos de la sociedad puedan compartir los mismos ideales y los consideren asequibles.Finalmente, se presentan unas conclusiones que se derivan del estudio y se proponen algunasrecomendaciones de política .
Self and Superior Assessment.

Science.gov (United States)

1986-06-01

model of the self-evaluation process as it differs from the evaluation process used by superiors. Symbolic Interactionism One view of self assessment is...supplied by the symbolic interactionists (Cooley, 1902; Head, 1934), who state that self perceptions are generated largely from individuals...disagreements remained even immediately after an appraisal interview in which a great deal of feedback was given. Research on the symbolic interactionist
14 CFR 385.7 - Exercise of authority by superiors.

Science.gov (United States)

2010-01-01

... PROCEEDINGS) ORGANIZATION STAFF ASSIGNMENTS AND REVIEW OF ACTION UNDER ASSIGNMENTS General Provisions § 385.7 Exercise of authority by superiors. Any assignment of authority to a staff member other than the Chief... be made, severally, to each such staff member's respective superiors. In accordance with the...
Radiotherapy of superior vena cava syndrome

International Nuclear Information System (INIS)

Kawanami, Shoko; Imada, Hajime; Terashima, Hiromi; Nakata, Hajime

1996-01-01

The records of 38 patients with superior vena cava syndrome (SVC syndrome) due to malignancy and who received radiation therapy were retrospectively reviewed. The majority were lung cancers, constituting 28 of the 38 cases (73.7%). All patients were treated with conventional radiation doses ranging from 20 to 70 Gy and good symptomatic response was observed in 31 cases (81.6% ). The response appeared within 1.7±0.9 weeks on average (3 days-4 weeks;, and performance status also improved in 50% of the patients. The median survival was 6.6 months. Long term survivors were seen mostly in patients with thymoma, and only one patient ever showed a recurrence of SVC syndrome. We conclude that radiotherapy can be an effective therapeutic modality for SVC syndrome and that it improves the quality of life in most patients. (author)
¿Rumores, miedo o epidemia? La peste de 1913 y 1914 en la costa atlántica de Colombia

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Jorge Márquez Valderrama

2001-06-01

Full Text Available A fines del siglo XIX, el comercio internacional y la navegación a vapor facilitaron la tercera pandemia de peste bubónica que comenzó en China en 1891 y llegó al continente americano en 1898. Este flagelo parece haber tocado las costas colombianas entre 1913 y 1915, en pleno auge de la medicina pasteriana. Las deficiencias del aparato científico-sanitario estatal colombiano, basado en la bacteriología y la epidemiología nacientes no le permitieron al Estado y al cuerpo médico responder al miedo y a los rumores de epidemia que lograron afectar negativamente el comercio. Tampoco pudieron las autoridades enfrentar el problema con medidas apropiadas para el diagnóstico, el tratamiento de pacientes, el saneamiento urbano y el aislamiento de los lugares contaminados. Estas dificultades provocaron una confrontación entre el Estado y el cuerpo médico, suscitando una discusión sobre la real existencia de la peste. Esta discusión fue zanjada por la medicina oficial norteamericana que, en su veredicto, dio preferencia a los intereses comerciales de Estados Unidos, ignorando las urgencias sanitarias de la costa atlántica colombiana.
¿Rumores, miedo o epidemia? La peste de 1913 y 1914 en la costa atlántica de Colombia

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Márquez Valderrama Jorge

2001-01-01

Full Text Available A fines del siglo XIX, el comercio internacional y la navegación a vapor facilitaron la tercera pandemia de peste bubónica que comenzó en China en 1891 y llegó al continente americano en 1898. Este flagelo parece haber tocado las costas colombianas entre 1913 y 1915, en pleno auge de la medicina pasteriana. Las deficiencias del aparato científico-sanitario estatal colombiano, basado en la bacteriología y la epidemiología nacientes no le permitieron al Estado y al cuerpo médico responder al miedo y a los rumores de epidemia que lograron afectar negativamente el comercio. Tampoco pudieron las autoridades enfrentar el problema con medidas apropiadas para el diagnóstico, el tratamiento de pacientes, el saneamiento urbano y el aislamiento de los lugares contaminados. Estas dificultades provocaron una confrontación entre el Estado y el cuerpo médico, suscitando una discusión sobre la real existencia de la peste. Esta discusión fue zanjada por la medicina oficial norteamericana que, en su veredicto, dio preferencia a los intereses comerciales de Estados Unidos, ignorando las urgencias sanitarias de la costa atlántica colombiana.
Over-activation in bilateral superior temporal gyrus correlated with subsequent forgetting effect of Chinese words.

Science.gov (United States)

Chen, Tzu-Ching; Kuo, Wen-Jui; Chiang, Ming-Chang; Tseng, Yi-Jhan; Lin, Yung-Yang

2013-08-01

We evaluated the subsequent memory and forgotten effects for Chinese using event-related fMRI. Sixteen normal subjects were recruited and performing incidental memory tasks where semantic decision was required during memory encoding. Consistent with previous studies, our results showed bilateral frontal regions as the main locus for the subsequent memory effect. However, contrast between miss and hit responses revealed larger activation in bilateral superior temporal gyrus. We proposed that larger activation in the superior temporal gyrus may reflect alteration of self-monitoring process which resulted in unsuccessful memory encoding for the miss items. Copyright © 2013 Elsevier Inc. All rights reserved.

Superior Canal Dehiscence Syndrome: Lessons from the First 20 Years

Directory of Open Access Journals (Sweden)

Bryan K. Ward

2017-04-01

Full Text Available Superior semicircular canal dehiscence syndrome was first reported by Lloyd Minor and colleagues in 1998. Patients with a dehiscence in the bone overlying the superior semicircular canal experience symptoms of pressure or sound-induced vertigo, bone conduction hyperacusis, and pulsatile tinnitus. The initial series of patients were diagnosed based on common symptoms, a physical examination finding of eye movements in the plane of the superior semicircular canal when ear canal pressure or loud tones were applied to the ear, and high-resolution computed tomography imaging demonstrating a dehiscence in the bone over the superior semicircular canal. Research productivity directed at understanding better methods for diagnosing and treating this condition has substantially increased over the last two decades. We now have a sound understanding of the pathophysiology of third mobile window syndromes, higher resolution imaging protocols, and several sensitive and specific diagnostic tests. Furthermore, we have a treatment (surgical occlusion of the superior semicircular canal that has demonstrated efficacy. This review will highlight some of the fundamental insights gained in SCDS, propose diagnostic criteria, and discuss future research directions.
Aneurysm of the superior mesenteric artery

Energy Technology Data Exchange (ETDEWEB)

Gebauer, A

1984-11-01

This is a report about 4 patients with aneurysms of the superior mesenteric artery of arteriosclerotic, mycotic and probably congenital etiology together with a review of the literature as to the etiology, diagnostic possibilities and therapy. Arteriography is the method of choice even though a diagnosis may be possible by sonography or CT in special cases. Even though an aneurysm of the superior mesenteric artery is rare, it has to be considered in the differential diagnosis of persisting abdominal problems of unknown origin. This is especially true for patients with a predisposing history such as previous or existing endocarditis, sepsis, arteriosclerosis and hypertension. Because of the possibility of rupture followed by life threating bleeding an adequate diagnostic step such as arteriography has to be considered finally.
Spawning Cisco investigations in Canada waters of Lake Superior during 2007

Science.gov (United States)

Yule, Daniel L.; Evrard, Lori M.; Cholwek, Gary A.; Addison, Peter A.; Cullis, Ken I.

2008-01-01

Cisco Coregonus artedi form pre-spawning aggregations in Lake Superior during November with the bulk of spawning occurring during late November through early December (Dryer and Beil 1964). Eggs are broadcast into open water (Smith 1956) with fertilized eggs settling to the lakebed (Dryer and Beil 1964). Peak hatching occurs the following May (United States Geological Survey – Great Lakes Science Center, GLSC, unpublished data). Interannual variability in year class strength is high, but tends to be synchronous across different regions of Lake Superior (Bronte et al. 2003). November 2005 sampling of Thunder Bay showed 14 year-classes were present with the oldest fish being from the 1984 year-class (Yule et al. 2008). The ciscoes sampled were predominantly from five year classes that hatched during 1988, 1989, 1990, 1998, and 2003. These same strong year-classes were found in the western arm of Lake Superior during November 2006 (GLSC, unpublished data). Growth is rapid in the first few years of life with minimal growth after age-8 (Yule et al. 2008). Ciscoes exceeding 250 mm total length (TL) are typically sexually mature (Yule et al. 2006b, 2008). Thunder Bay ciscoes have high annual survival with rates for females and males averaging 0.80 and 0.75, respectively; females have higher rates of fishing-induced mortality compared to males but lower rates of natural mortality (Yule et al. 2008). Some Lake Superior stocks are currently commercially fished with the bulk of harvest occurring during November when fishers target females for their roe. The bulk of fish are harvested from Thunder Bay using suspended gillnets with mesh sizes ranging from 79-89 mm stretch measure. Ciscoes younger then age-5 make up a very small proportion (<0.1%) of the harvest (Yule, et al. 2008).
Air Power's First Among Equals: Why Air Superiority Still Matters

National Research Council Canada - National Science Library

Slawson, Andrew T

2008-01-01

.... History is replete with examples of successful or failed air superiority campaigns. This paper details air superiority's role in both the Battle of Britain, and the 1967 Six Day War's Operation MOKED...
Factores de riesgo total en familias migrantes en Soledad, Atlántico

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Dora Cecilia Sánchez Isaza

2016-01-01

Full Text Available Introducción: Colombia vive hoy por hoy uno de sus más grandes problemas sociales como es la migración de familias a nivel inter-municipales e inter-departamentales, lo que hace necesario la caracterización del factor de riesgo total en estas familias para su intervención. Materiales y Métodos: Estudio cuantitativo descriptivo transversal donde se seleccionaron 70 familias migrantes constituidas por 344 individuos, que viven aledaños a un barrio del municipio de Soledad, y se utilizó el instrumento Riesgo Familiar total (RFT 5-33 de Pilar Amaya, con las categorías: socio-demográfico, factores de riesgo y riesgo total. Resultados: Dentro de todos los factores de riesgo familiar que pone en un riesgo alto a estas familias migrantes son: condiciones de vivienda y vecindario con un 59%, situación económica con un 24% y condiciones afectivas con un 14%, menor frecuencia se da en servicios y practica de salud con un 10% y manejo de menores con 10%. Discusión: La problemática que viene afectando a las poblaciones rurales, aun cuando el gobierno viene desarrollando planes direccionados hacia las familias migrantes, los problemas de infraestructura de las viviendas y la situación socio-económica en ellos se refleja en su salud. Y más aun cuando algunas investigaciones han demostrado como se les ha venido vulnerando sus derechos. Conclusiones: Sobre el predominio de las familias migrantes con riesgo alto, se aprecia que estadísticamente los componentes de estas variables son independientes, pero el comportamiento observado puede ser el resultado de efectos causales similares. Cómo citar este artículo: Sánchez DC, Cataño N. Factores de riesgo total en familias migrantes en Soledad, Atlántico. Rev Cuid. 2016; 7(1: 1152-62. http://dx.doi.org/10.15649/cuidarte.v7i1.174
Aging and the picture superiority effect in recall.

Science.gov (United States)

Winograd, E; Smith, A D; Simon, E W

1982-01-01

One recurrent theme in the literature on aging and memory is that the decline of memory for nonverbal information is steeper than for verbal information. This research compares verbal and visual encoding using the picture superiority effect, the finding that pictures are remembered better than words. In the first experiment, an interaction was found between age and type of material; younger subjects recalled more pictures than words while older subjects did not. However, the overall effect was small and two further experiments were conducted. In both of these experiments, the picture superiority effect was found in both age groups with no interaction. In addition, performing a semantic orienting task had no effect on recall. The finding of a picture superiority effect in older subjects indicates that nonverbal codes can be effectively used by subjects in all age groups to facilitate memory performance.
Progressive gray matter reduction of the superior temporal gyrus during transition to psychosis.

Science.gov (United States)

Takahashi, Tsutomu; Wood, Stephen J; Yung, Alison R; Soulsby, Bridget; McGorry, Patrick D; Suzuki, Michio; Kawasaki, Yasuhiro; Phillips, Lisa J; Velakoulis, Dennis; Pantelis, Christos

2009-04-01

Longitudinal magnetic resonance imaging studies have shown progressive gray matter reduction in the superior temporal gyrus during the earliest phases of schizophrenia. It is unknown whether these progressive processes predate the onset of psychosis. To examine gray matter reduction of the superior temporal gyrus over time in individuals at risk for psychosis and in patients with first-episode psychosis. Cross-sectional and longitudinal comparisons. Personal Assessment and Crisis Evaluation Clinic and Early Psychosis Preventions and Intervention Centre. Thirty-five ultrahigh-risk individuals (of whom 12 later developed psychosis [UHRP] and 23 did not [UHRNP]), 23 patients with first-episode psychosis (FEP), and 22 control subjects recruited from the community. Volumes of superior temporal subregions (planum polare, Heschl gyrus, planum temporale, and rostral and caudal regions) were measured at baseline and follow-up (mean, 1.8 years) and were compared across groups. In cross-sectional comparisons, only the FEP group had significantly smaller planum temporale and caudal superior temporal gyrus than other groups at baseline, whereas male UHRP subjects also had a smaller planum temporale than controls at follow-up. In longitudinal comparison, UHRP and FEP patients showed significant gray matter reduction (approximately 2%-6% per year) in the planum polare, planum temporale, and caudal region compared with controls and/or UHRNP subjects. The FEP patients also exhibited progressive gray matter loss in the left Heschl gyrus (3.0% per year) and rostral region (3.8% per year), which were correlated with the severity of delusions at follow-up. A progressive process in the superior temporal gyrus precedes the first expression of florid psychosis. These findings have important implications for underlying neurobiologic features of emerging psychotic disorders and emphasize the importance of early intervention during or before the first episode of psychosis.
Growth and production of new superior rice varieties in the shade intensity

Science.gov (United States)

Alridiwirsah; Harahap, E. M.; Akoeb, E. N.; Hanum, H.

2018-02-01

Shade intensity is one of the most important requirements for plant growth, affecting growth, development, survival, and crop productivity. This study aims to evaluate the growth and productiom of New Superior Rice Varieties In The shade Intensity. This study was conducted in Balai Pengkajian Teknologi Pertanian, Pagar Merbau, Deli Serdang, North Sumatra. The research used completely randomized design with twofactors. The shade intensity (N) were 25%, 50% and no shade intensity as a control. Whereas new superior rice varieties were V1: Inpara 2, V2: Suluttan Unsrat 2, V3: Inpari Mugibat, V4: Inpari Sidenuk, V5: Mekongga, V6: Ciherang, V7:Inpari 10, V8: Inpari 3, V9: Inpari 4, V10: Inpari 30, dan V11: Cibogo. The result indicated that new superior rice varietiesshowedsignificant effectonthe growth and productionvariablesuch as leaf area, where Inpari Sidenuk variety was the highest among the varieties. Total chorophyll, the highest was found on Inpari variety. Number of tillers and plant height where the highest was found on Ciherang variety. The shade intensity showed significant effect on leaf area, where 25% shade intensity was the highest. Total chlorophyll, the highest was found on 50% shade intensity, number of tillers, the highest was found on no shade intensity.
Tunable preparation of ruthenium nanoparticles with superior size-dependent catalytic hydrogenation properties

Energy Technology Data Exchange (ETDEWEB)

Zhao, Yuan; Luo, Yaodong; Yang, Xuan; Yang, Yaxin; Song, Qijun, E-mail: qsong@jiangnan.edu.cn

2017-06-15

Highlights: • A facile and efficient strategy is firstly developed for the synthesis of Ru NPs. • Ru NPs are stable and uniform with the controllable sizes from 2.6 to 51.5 nm. • Ru NPs exhibit size-dependent and superior catalytic hydrogenation activity. - Abstract: Ruthenium (Ru) featured with an unusual catalytic behavior is of great significance in several heterogeneous and electro-catalytic reactions. The preparation of tractable Ru nanocatalysts and the building of highly active catalytic system at ambient temperature remains a grand challenge. Herein, a facile strategy is developed for the controllable preparation of Ru nanoparticles (NPs) with the sizes ranging from 2.6 to 51.5 nm. Ru NPs show superior size-dependent catalytic performance with the best kinetic rate constant as high as −1.52 min{sup −1}, which could far surpass the other traditional noble metals. Ru NPs exert exceedingly efficient low-temperature catalytic activity and good recyclability in the catalytic reduction of nitroaromatic compounds (NACs) and azo dyes. The developed catalytic system provides a distinguishing insight for the artificial preparation of Ru NPs with desired sizes, and allows for the development of rational design rules for exploring catalysts with superior catalytic performances, potentially broadening the applications of metallic NP-enabled catalytic analysis.
Temporal lobe epilepsy and surgery selectively alter the dorsal, not the ventral, default-mode network

Directory of Open Access Journals (Sweden)

Gaelle Eve Doucet

2014-03-01

Full Text Available The default-mode network (DMN is a major resting-state network. It can be divided in 2 distinct networks: one is composed of dorsal and anterior regions (referred to as the dorsal DMN, dDMN, while the other involves the more posterior regions (referred to as the ventral DMN, vDMN. To date, no studies have investigated the potentially distinct impact of temporal lobe epilepsy (TLE on these networks. In this context, we explored the effect of TLE and anterior temporal lobectomy (ATL on the dDMN and vDMN. We utilized 2 resting-state fMRI sessions from left, right TLE patients (pre-/post-surgery and normal controls (NCs, sessions 1/2. Using independent component analysis, we identified the 2 networks. We then evaluated for differences in spatial extent for each network between the groups, and across the scanning sessions. The results revealed that, pre-surgery, the dDMN showed larger differences between the three groups than the vDMN, and more particularly between right and left TLE than between the TLE patients and controls. In terms of change post-surgery, in both TLE groups, the dDMN also demonstrated larger changes than the vDMN. For the vDMN, the only changes involved the resected temporal lobe for each ATL group. For the dDMN, the left ATL group showed post-surgical increases in several regions outside the ictal temporal lobe. In contrast, the right ATL group displayed a large reduction in the frontal cortex. The results highlight that the 2 DMNs are not impacted by TLE and ATL in an equivalent fashion. Importantly, the dDMN was the more affected, with right ATL having a more deleterious effects on the dDMN than left ATL. We are the first to highlight that the dDMN more strongly bears the negative impact of TLE than the vDMN, suggesting there is an interaction between the side of pathology and DM subnetwork activity. Our findings have implications for understanding the impact TLE and subsequent ATL on the functions implemented by the distinct
The course of language functions after temporal lobe epilepsy surgery: a prospective study.

Science.gov (United States)

Giovagnoli, A R; Parente, A; Didato, G; Manfredi, V; Deleo, F; Tringali, G; Villani, F

2016-12-01

Anterior temporal lobectomy (ATL) within the language-dominant hemisphere can impair naming. This prospective study examined the pre-operative to post-operative course of different language components, clarifying which changes are relevant within the short-term and long-term outcome of language. Patients with drug-resistant temporal lobe epilepsy (TLE) were evaluated using the Token, Boston Naming and Word Fluency tests assessing sentence comprehension and word-finding on visual, semantic or phonemic cues. A total of 106 patients were evaluated before and 6 months, 1 and 2 years after ATL; 60 patients were also evaluated after 5 years and 38 controls were assessed at baseline. Seizure outcome was comparable between the left and right TLE patients. Before surgery, naming and word fluency were impaired in the left and right TLE patients, whereas sentence comprehension was normal. After left or right ATL, word fluency progressively improved, naming showed early worsening and late improvement after left ATL and progressive improvement after right ATL, and sentence comprehension did not change. At the 5-year follow-up, naming improvement was clinically significant in 31% and 71% of the left and right TLE patients, respectively. Pre-operative naming, ATL laterality, schooling, and post-operative seizure frequency and number of antiepileptic drugs predicted post-operative naming. Pre-operative word fluency and schooling predicted post-operative word fluency. Left or right TLE can impair word-finding but not sentence comprehension. After ATL, word-finding may improve for a long time, depending on TLE laterality, seizure control and mental reserve. These findings may clarify prognosis prior to treatment. © 2016 EAN.
Happy Face Superiority Effect in Change Detection Paradigm

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Domagoj Švegar

2013-09-01

Full Text Available The aim of the present study was to investigate which affective component guides cognitive processing of emotional facial expressions. According to the threat hypothesis, processing of angry faces is prioritized by the human cognitive system, because rapid detection of threat has a large adaptive value. The negativity hypothesis presumes that distressing emotional experiences of other people attract attention, regardless of whether they represent danger or not. The emotionality hypothesis proposes that positive emotional facial expressions can capture attention as effective as negative ones, while the happy face superiority hypothesis predicts that happy faces are prioritized. In the present study, which was conducted on 24 participants, change detection paradigm was used, because that procedure enables insight into the later stage of information processing. The results obtained show that happy facial expressions are heavily prioritized by the human cognitive system. In explanation of these results, that clearly support the happy face superiority hypothesis, we propose that angry expressions are initially prioritized by our cognitive system, because we benefit from early detection of potential threat in the environment, but in later cognitive processing, happy expressions are given the priority, because smiling is a valuable mechanism for forming and maintaining cooperative relationships. Besides the theoretical relevance, the present study is also valuable methodologically, because we demonstrated that change detection paradigm can be efficiently used for the research of emotional facial expressions processing.
The Distinct Role of the Amygdala, Superior Colliculus and Pulvinar in Processing of Central and Peripheral Snakes.

Directory of Open Access Journals (Sweden)

Inês Almeida

Full Text Available Visual processing of ecologically relevant stimuli involves a central bias for stimuli demanding detailed processing (e.g., faces, whereas peripheral object processing is based on coarse identification. Fast detection of animal shapes holding a significant phylogenetic value, such as snakes, may benefit from peripheral vision. The amygdala together with the pulvinar and the superior colliculus are implicated in an ongoing debate regarding their role in automatic and deliberate spatial processing of threat signals.Here we tested twenty healthy participants in an fMRI task, and investigated the role of spatial demands (the main effect of central vs. peripheral vision in the processing of fear-relevant ecological features. We controlled for stimulus dependence using true or false snakes; snake shapes or snake faces and for task constraints (implicit or explicit. The main idea justifying this double task is that amygdala and superior colliculus are involved in both automatic and controlled processes. Moreover the explicit/implicit instruction in the task with respect to emotion is not necessarily equivalent to explicit vs. implicit in the sense of endogenous vs. exogenous attention, or controlled vs. automatic processes.We found that stimulus-driven processing led to increased amygdala responses specifically to true snake shapes presented in the centre or in the peripheral left hemifield (right hemisphere. Importantly, the superior colliculus showed significantly biased and explicit central responses to snake-related stimuli. Moreover, the pulvinar, which also contains foveal representations, also showed strong central responses, extending the results of a recent single cell pulvinar study in monkeys. Similar hemispheric specialization was found across structures: increased amygdala responses occurred to true snake shapes presented to the right hemisphere, with this pattern being closely followed by the superior colliculus and the pulvinar
Superior facet syndrome. Findings on metrizamide CT myelography

Energy Technology Data Exchange (ETDEWEB)

Kubo, Yoshichika; Igarashi, Seishi; Koyama, Tsunemaro

1985-02-01

Sciatica caused by root entrapment in the lateral recess was named superior facet syndrome by Epstein in 1972. Few reports on this subject based on large numbers of cases have been documented to date. Of the patients with sciatica, 32 patients were diagnosed to have root entrapment at the lateral recess L5 or/and S1 lumbar spine. Out of 32 patients, 20 patients were operated on and the lateral entrapment was recognized in all of surgical cases. Neuroradiological findings, especially of metrizamide CT (met. CT), were documented in detail. Thirty two patients were classified in three types according to radiological findings. They were congenital or developmental, degenerative, and combined type, respectively. Fourteen cases belonged to the congenital type, 13 to the degenerative and 5 to the combined type. Each group had the mean ages of 23.4, 53.8, and 36.8 years old, respectively. Of 32 cases the entrapment occured in 47 L5 roots and 11 S1 roots. There was no remarkable laterality. In operation the unroofing of the lateral recess were done and the sciatica subsided postoperatively in all of surgical cases. Met. CT revealed extreme medial protrusion of the superior articular joint in 18 of 24 cases(75%) and none filling of the root in the lateral recess in 21 of 24 cases (87.5%). In the degenerative type, met. CT showed some degenerative changes that were hypertrophy or deformity of the articular joints and spur formation of the vertebral body. In contrast to met. CT, metrizamide myelography revealed only slight changes, which were poor filling of the root before it turned out the pedicle of lateral compression of the root. In plain films or lumbar spine articular joints at Lsub(4/5) were formed in coronal plane in 69% of cases of the L5 root entrapment. Met. CT using ReView technique was of great diagnostic value in superior facet syndrome.
Noise management to achieve superiority in quantum information systems.

Science.gov (United States)

Nemoto, Kae; Devitt, Simon; Munro, William J

2017-08-06

Quantum information systems are expected to exhibit superiority compared with their classical counterparts. This superiority arises from the quantum coherences present in these quantum systems, which are obviously absent in classical ones. To exploit such quantum coherences, it is essential to control the phase information in the quantum state. The phase is analogue in nature, rather than binary. This makes quantum information technology fundamentally different from our classical digital information technology. In this paper, we analyse error sources and illustrate how these errors must be managed for the system to achieve the required fidelity and a quantum superiority.This article is part of the themed issue 'Quantum technology for the 21st century'. © 2017 The Author(s).
Noise management to achieve superiority in quantum information systems

Science.gov (United States)

Nemoto, Kae; Devitt, Simon; Munro, William J.

2017-06-01

Quantum information systems are expected to exhibit superiority compared with their classical counterparts. This superiority arises from the quantum coherences present in these quantum systems, which are obviously absent in classical ones. To exploit such quantum coherences, it is essential to control the phase information in the quantum state. The phase is analogue in nature, rather than binary. This makes quantum information technology fundamentally different from our classical digital information technology. In this paper, we analyse error sources and illustrate how these errors must be managed for the system to achieve the required fidelity and a quantum superiority. This article is part of the themed issue 'Quantum technology for the 21st century'.
Effector Regulatory T Cells Reflect the Equilibrium between Antitumor Immunity and Autoimmunity in Adult T-cell Leukemia.

Science.gov (United States)

Ureshino, Hiroshi; Shindo, Takero; Nishikawa, Hiroyoshi; Watanabe, Nobukazu; Watanabe, Eri; Satoh, Natsuko; Kitaura, Kazutaka; Kitamura, Hiroaki; Doi, Kazuko; Nagase, Kotaro; Kimura, Hiromi; Samukawa, Makoto; Kusunoki, Susumu; Miyahara, Masaharu; Shin-I, Tadasu; Suzuki, Ryuji; Sakaguchi, Shimon; Kimura, Shinya

2016-08-01

The regulatory T cells (Treg) with the most potent immunosuppressive activity are the effector Tregs (eTreg) with a CD45RA(-)Foxp3(++)CCR4(+) phenotype. Adult T-cell leukemia (ATL) cells often share the Treg phenotype and also express CCR4. Although mogamulizumab, a monoclonal antibody to CCR4, shows marked antitumor effects against ATL and peripheral T-cell lymphoma, concerns have been raised that it may induce severe autoimmune immunopathology by depleting eTregs. Here, we present case reports for two patients with ATL who responded to mogamulizumab but developed a severe skin rash and autoimmune brainstem encephalitis. Deep sequencing of the T-cell receptor revealed that ATL cells and naturally occurring Tregs within the cell population with a Treg phenotype can be clearly distinguished according to CADM1 expression. The onset of skin rash and brainstem encephalitis was coincident with eTreg depletion from the peripheral blood, whereas ATL relapses were coincident with eTreg recovery. These results imply that eTreg numbers in the peripheral blood sensitively reflect the equilibrium between antitumor immunity and autoimmunity, and that mogamulizumab might suppress ATL until the eTreg population recovers. Close monitoring of eTreg numbers is crucial if we are to provide immunomodulatory treatments that target malignancy without severe adverse events. Cancer Immunol Res; 4(8); 644-9. ©2016 AACR. ©2016 American Association for Cancer Research.
Frontal and superior temporal auditory processing abnormalities in schizophrenia.

Science.gov (United States)

Chen, Yu-Han; Edgar, J Christopher; Huang, Mingxiong; Hunter, Michael A; Epstein, Emerson; Howell, Breannan; Lu, Brett Y; Bustillo, Juan; Miller, Gregory A; Cañive, José M

2013-01-01

Although magnetoencephalography (MEG) studies show superior temporal gyrus (STG) auditory processing abnormalities in schizophrenia at 50 and 100 ms, EEG and corticography studies suggest involvement of additional brain areas (e.g., frontal areas) during this interval. Study goals were to identify 30 to 130 ms auditory encoding processes in schizophrenia (SZ) and healthy controls (HC) and group differences throughout the cortex. The standard paired-click task was administered to 19 SZ and 21 HC subjects during MEG recording. Vector-based Spatial-temporal Analysis using L1-minimum-norm (VESTAL) provided 4D maps of activity from 30 to 130 ms. Within-group t-tests compared post-stimulus 50 ms and 100 ms activity to baseline. Between-group t-tests examined 50 and 100 ms group differences. Bilateral 50 and 100 ms STG activity was observed in both groups. HC had stronger bilateral 50 and 100 ms STG activity than SZ. In addition to the STG group difference, non-STG activity was also observed in both groups. For example, whereas HC had stronger left and right inferior frontal gyrus activity than SZ, SZ had stronger right superior frontal gyrus and left supramarginal gyrus activity than HC. Less STG activity was observed in SZ than HC, indicating encoding problems in SZ. Yet auditory encoding abnormalities are not specific to STG, as group differences were observed in frontal and SMG areas. Thus, present findings indicate that individuals with SZ show abnormalities in multiple nodes of a concurrently activated auditory network.
Aneurysm of the superior mesenteric artery

International Nuclear Information System (INIS)

Gebauer, A.

1984-01-01

This is a report about 4 patients with aneurysms of the superior mesenteric artery of arteriosclerotic, mycotic and probably congenital etiology together with a review of the literature as to the etiology, diagnostic possibilities and therapy. Arteriography is the method of choice even though a diagnosis may be possible by sonography or CT in special cases. Even though an aneurysm of the superior mesenteric artery is rare, it has to be considered in the differential diagnosis of persisting abdominal problems of unknown origin. This is especially true for patients with a predisposing history such as previous or existing endocarditis, sepsis, arteriosclerosis and hypertension. Because of the possibility of rupture followed by life threating bleeding an adequate diagnostic step such as arteriography has to be considered finally. (orig.) [de
Los orígenes de las revoluciones de independencia de América Latina en perspectiva atlántica = The origins of the Latin American revolutions of independence in atlantic perspective

Directory of Open Access Journals (Sweden)

Rinke, Stefan

2010-01-01

Full Text Available Às vésperas das Independências da América Latina, os vínculos atlânticos possibilitaram a circulação de conhecimentos sobre ideias da Ilustração, das revoluções da América do Norte e da França. Apesar de as razões internas, como as Reformas Bourbônicas e Pombalinas, terem levado às Independências, foi o intercâmbio do saber que fundamentou suas bases. O caso do Haiti, símbolo da abolição violenta da escravidão, mostra que o intercâmbio de conhecimento não teve uma direção única

Enlarged right superior temporal gyrus in children and adolescents with autism.

Science.gov (United States)

Jou, Roger J; Minshew, Nancy J; Keshavan, Matcheri S; Vitale, Matthew P; Hardan, Antonio Y

2010-11-11

The superior temporal gyrus has been implicated in language processing and social perception. Therefore, anatomical abnormalities of this structure may underlie some of the deficits observed in autism, a severe neurodevelopmental disorder characterized by impairments in social interaction and communication. In this study, volumes of the left and right superior temporal gyri were measured using magnetic resonance imaging obtained from 18 boys with high-functioning autism (mean age=13.5±3.4years; full-scale IQ=103.6±13.4) and 19 healthy controls (mean age=13.7±3.0years; full-scale IQ=103.9±10.5), group-matched on age, gender, and handedness. When compared to the control group, right superior temporal gyral volumes was significantly increased in the autism group after controlling for age and total brain volume. There was no significant difference in the volume of the left superior temporal gyrus. Post-hoc analysis revealed a significant increase of the right posterior superior temporal gyral volume in the autism group, before and after controlling for age and total brain volume. Examination of the symmetry index for the superior temporal gyral volumes did not yield statistically significant between-group differences. Findings from this preliminary investigation suggest the existence of volumetric alterations in the right superior temporal gyrus in children and adolescents with autism, providing support for a neuroanatomical basis of the social perceptual deficits characterizing this severe neurodevelopmental disorder. Copyright © 2010 Elsevier B.V. All rights reserved.
Superior refining performance beyond 2000 -- Breaking traditional paradigms

International Nuclear Information System (INIS)

Tassel, B. van

1995-01-01

Over the last 5 years, refining companies have not performed well financially, generating returns below the cost of capital. Environmental regulations have caused the industry to invest significant amounts of capital, and while new regulations will cause the shutdown of between 500 thousand and 1.2 million barrels per day of capacity, the industry structure will remain poor and financial returns for the average player will likely be volatile, cyclical, and below the cost of capital. Based on this industry outlook, refining companies seeking superior performance will have to break the traditional paradigms and adopt world-class practices used in other industries. Changes required to significantly improve financial returns will include shifts in business strategy to accommodate growth, and development of nontraditional services, as well as initiates to dramatically reshape cost structure and improve profitability. Making the changes to become a superior performer in the refining business will require a clear vision and strong leadership at multiple levels in the organization. The transformation will also require changes in company culture and incentive plans that encourage managers to act as owners. In addition, superior performers will push accountability for results to low levels in the organization. Given the herd mentality of the oil industry, superior performers must take decisive, preemptive action to generate a substantial, competitive advantage
Superior refining performance beyond 2000 -- Breaking traditional paradigms

Energy Technology Data Exchange (ETDEWEB)

Tassel, B. van [McKinsey and Co., Inc., Houston, TX (United States)

1995-09-01

Over the last 5 years, refining companies have not performed well financially, generating returns below the cost of capital. Environmental regulations have caused the industry to invest significant amounts of capital, and while new regulations will cause the shutdown of between 500 thousand and 1.2 million barrels per day of capacity, the industry structure will remain poor and financial returns for the average player will likely be volatile, cyclical, and below the cost of capital. Based on this industry outlook, refining companies seeking superior performance will have to break the traditional paradigms and adopt world-class practices used in other industries. Changes required to significantly improve financial returns will include shifts in business strategy to accommodate growth, and development of nontraditional services, as well as initiates to dramatically reshape cost structure and improve profitability. Making the changes to become a superior performer in the refining business will require a clear vision and strong leadership at multiple levels in the organization. The transformation will also require changes in company culture and incentive plans that encourage managers to act as owners. In addition, superior performers will push accountability for results to low levels in the organization. Given the herd mentality of the oil industry, superior performers must take decisive, preemptive action to generate a substantial, competitive advantage.
Impactos do sistema agrícola itinerante sobre os solos de remanescente de Mata Atlântica com uso e ocupação por comunidades quilombolas no Vale do Ribeira (São Paulo, Brasil)

OpenAIRE

Alexandre Antunes Ribeiro Filho

2015-01-01

Esta tese é um estudo de Ecologia Humana realizado no contexto de duas comunidades remanescentes de quilombo da região do Vale do Ribeira (Médio Ribeira, SP). Portanto, avalia as interações socioambientais entre as comunidades humanas e as biológicas que constituem o bioma Mata Atlântica na região. Especificamente, esta interação é investigada a partir da dinâmica da fertilidade dos solos, a qual é um subsídio fundamental para o estabelecimento e a manutenção da atividade agrícola quilombola ...
Ligation of superior mesenteric vein and portal to splenic vein anastomosis after superior mesenteric-portal vein confluence resection during pancreaticoduodenectomy – Case report

Science.gov (United States)

Tang, Jianlin; Abbas, Jihad; Hoetzl, Katherine; Allison, David; Osman, Mahamed; Williams, Mallory; Zelenock, Gerald B.

2014-01-01

62 year old Caucasian female with pancreatic head mass abutting the superior mesenteric vein (SMV) presented with fine needle aspiration biopsy confirmed diagnosis of ductal adenocarcinoma. CT scan showed near complete obstruction of portal vein and large SMV collateral development. After 3 months of neoadjuvant therapy, her portal vein flow improved significantly, SMV collateral circulation was diminished. Pancreaticoduodenectomy (PD) and superior mesenteric portal vein (SMPV) confluence resection were performed; A saphenous vein interposition graft thrombosed immediately. The splenic vein remnant was distended and adjacent to the stump of the portal vein. Harvesting an internal jugular vein graft required extra time and using a synthetic graft posed a risk of graft thrombosis or infection. As a result, we chose to perform a direct anastomosis of the portal and splenic vein in a desperate situation. The anastomosis decompressed the mesenteric venous system, so we then ligated the SMV. The patient had an uneventful postoperative course, except transient ascites. She redeveloped ascites more than one year later. At that time a PET scan showed bilateral lung and right femur metastatic disease. She expired 15 months after PD. Conclusion The lessons we learned are (1) Before SMPV confluence resection, internal jugular vein graft should be ready for reconstruction. (2) Synthetic graft is an alternative for internal jugular vein graft. (3) Direct portal vein to SMV anastomosis can be achieved by mobilizing liver. (4) It is possible that venous collaterals secondary to SMV tumor obstruction may have allowed this patient's post-operative survival. PMID:25568802
Persistencia de la vena cava superior izquierda: Diagnóstico e importancia prenatal Persistency of the left superior caval vein: Diagnosis and its prenatal importance

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Juan F Jaramillo

2010-04-01

Full Text Available Durante un ultrasonido obstétrico de rutina se deben realizar ciertos planos del corazón en los cuales no es complejo identificar un grupo de anomalías como la persistencia de la vena cava superior izquierda. Cuando se identifica una vena cava superior izquierda aislada, sin otras anomalías del corazón fetal, no existe ninguna repercusión perinatal. Su importancia radica en que un grupo considerable de estos casos se acompaña de cardiopatías congénitas y anomalías anatómicas y cromosómicas. En este artículo se describen nueve casos de vena cava superior izquierda persistente, al igual que las anomalías del corazón asociadas, como también las alteraciones extracardiacas encontradas.Certain heart fetal planes must be realized during a routine obstetric ultrasound in order to identify a group of anomalies such as the persistency of the left superior caval vein. When an isolated left superior venal vein is identified without any other anomaly of the fetal heart, it does not have any perinatal repercussion. Its importance lies in the fact that a considerable number of these cases are associated with a high incidence of congenital heart diseases and anatomic and chromosomal abnormalities. This article reports nine cases of persistency of the left superior caval vein as well as the associated heart abnormalities and the extra-cardiac alterations found.
Transformação da paisagem e o uso dos recursos florestais na agricultura familiar: um estudo de caso em área de Mata Atlântica

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Gisele Garcia Alarcon

2011-06-01

Full Text Available São Bonifácio está localizado na região das serras do leste catarinense, no bioma Mata Atlântica. A agricultura e a pecuária leiteira, praticadas na pequena propriedade, compõem o setor responsável por garantir ocupação da maior parte da população. Este estudo tem como objetivo analisar a relação entre agricultores familiares e os recursos florestais da paisagem. O estímulo a práticas produtivas que não valorizam a floresta associado à ausência de políticas de incentivo para o manejo florestal de espécies nativas, foram determinantes para a redução das áreas florestadas em São Bonifácio nas últimas cinco décadas.
5 CFR 531.212 - Superior qualifications and special needs pay-setting authority.

Science.gov (United States)

2010-01-01

... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Superior qualifications and special needs... Appointment Or Position Changes § 531.212 Superior qualifications and special needs pay-setting authority. (a) Agency authority. (1) An agency may use the superior qualifications and special needs pay-setting...
Anatomical relation between S1 sacroiliac screws' entrance points and superior gluteal artery.

Science.gov (United States)

Zhao, Yong; You, Libo; Lian, Wei; Zou, Dexin; Dong, Shengjie; Sun, Tao; Zhang, Shudong; Wang, Dan; Li, Jingning; Li, Wenliang; Zhao, Yuchi

2018-01-18

To conduct radiologic anatomical study on the relation between S1 sacroiliac screws' entry points and the route of the pelvic outer superior gluteal artery branches with the aim to provide the anatomical basis and technical reference for the avoidance of damage to the superior gluteal artery during the horizontal sacroiliac screw placement. Superior gluteal artery CTA (CT angiography) vascular imaging of 74 healthy adults (37 women and 37 men) was done with 128-slice spiral CT (computed tomography). The CT attendant-measuring software was used to portray the "safe bony entrance area" (hereinafter referred to as "Safe Area") of the S1 segment in the standard lateral pelvic view of three-dimensional reconstruction. The anatomical relation between S1 sacroiliac screws' Safe Area and the pelvic outer superior gluteal artery branches was observed and recorded. The number of cases in which artery branches intersected the Safe Area was counted. The cases in which superior gluteal artery branches disjointed from the Safe Area were identified, and the shortest distance between the Safe Area and the superior gluteal artery branch closest to the Safe Area was measured. Three cases out of the 74 sample cases were excluded from this study as they were found to have no bony space for horizontal screw placement in S1 segment. Among the remaining 71 sample cases, there are 32 cases (45.1%) where the deep superior branch of superior gluteal artery passes through the Safe Area of S1 entrance point. There was no distinguishing feature and rule on how the deep superior branches and the Safe Area overlapped. In the 39 cases in which superior gluteal artery branches disjointed from the Safe Area, the deep superior branches of superior gluteal artery were the branches closest to the Safe Area and the part of the branch closest to the Safe Area was located in front of the widest part of the Safe Area. The shortest distance between the deep superior branch and the Safe Area is 0.86�
Vena cava superior syndrome associated with sarcoidosis

International Nuclear Information System (INIS)

Wurm, K.; Walz, M.; Reidemeister, J.C.; Donhuijsen, K.

1988-01-01

We report the first observation of clinical manifestations of vena cava superior syndrome (VCSS) associated with sarcoidosis. Twenty-four years after the first signs of the disease had been noted, mediastinal lymphomas penetrating the wall of the vena cava superior caused complete obstruction. It is most unusual for the vessel wall to be destroyed in this way, which explains why VCSS is often missed in sarcoidosis. The obstructed vessel was resected and successfully replaced by a Gore-Tex prosthesis. The importance of VCSS for the differential diagnosis is pointed out. Two further peculiarities are the simultaneous occurrence of elevated intraocular pressure and VCSS, and the familial incidence. (orig.) [de
Memory for Pictures, Words, and Spatial Location in Older Adults: Evidence for Pictorial Superiority.

Science.gov (United States)

Park, Denise Cortis; And Others

1983-01-01

Tested recognition memory for items and spatial location by varying picture and word stimuli across four slide quadrants. Results showed a pictorial superiority effect for item recognition and a greater ability to remember the spatial location of pictures versus words for both old and young adults (N=95). (WAS)
Superior temporal gyrus thickness correlates with cognitive performance in multiple sclerosis.

Science.gov (United States)

Achiron, Asaf; Chapman, Joab; Tal, Sigal; Bercovich, Eran; Gil, Hararai; Achiron, Anat

2013-07-01

Decreased cortical thickness that signifies gray matter pathology and its impact on cognitive performance is a research field with growing interest in relapsing-remitting multiple sclerosis (RRMS) and needs to be further elucidated. Using high-field 3.0 T MRI, three-dimensional T1-FSPGR (voxel size 1 × 1 × 1 mm) cortical thickness was measured in 82 regions in the left hemisphere (LH) and right hemisphere (RH) in 20 RRMS patients with low disease activity and in 20 age-matched healthy subjects that in parallel underwent comprehensive cognitive evaluation. The correlation between local cortical atrophy and cognitive performance was examined. We identified seven regions with cortical tissue loss that differed between RRMS and age-matched healthy controls. These regions were mainly located in the frontal and temporal lobes, specifically within the gyrus rectus, inferior frontal sulcus, orbital gyrus, parahippocampal gyrus, and superior temporal gyrus, with preferential left asymmetry. Increased cortical thickness was identified in two visual sensory regions, the LH inferior occipital gyrus, and the RH cuneus, implicating adaptive plasticity. Correlation analysis demonstrated that only the LH superior temporal gyrus thickness was associated with cognitive performance and its thickness correlated with motor skills (r = 0.65, p = 0.003), attention (r = 0.45, p = 0.042), and information processing speed (r = 0.50, p = 0.025). Our findings show that restricted cortical thinning occurs in RRMS patients with mild disease and that LH superior temporal gyrus atrophy is associated with cognitive dysfunction.
Radioimmunodetection of human leukemia with anti-interleukin-2 receptor antibody in severe combined immunodeficiency mice

International Nuclear Information System (INIS)

Hosono, Makoto; Takaori-Kondo, Akifumi; Zheng-Sheng, Yao; Kobayashi, Hisataka; Hosono, Masako N.; Sakahara, Harumi; Imada, Kazunori; Okuma, Minoru; Uchiyama, Takashi; Konishi, Junji

1995-01-01

Anti-Tac monoclonal antibody recognizes human interleukin-2 receptor, which is overexpressed in leukemic cells of most adult T-cell leukemia (ATL) patients. To examine the potency of anti-Tac for targeting of ATL, biodistributions of intravenously administered 125 I- and 111 In-labeled anti-Tac were examined in severe combined immunodeficiency (SCID) mice inoculated with ATL cells. Significant amounts of radiolabeled anti-Tac were found in the spleen and thymus. The trafficking of ATL cells in SCID mice was detected using 111 In-oxine-labeled ATL cells. These results were coincident with the histologically confirmed infiltration of ATL cells. The radiolabeled anti-Tac seemed potent for targeting of ATL
Buscando la Historia en los Bosques: el papel de los macrovestigios y de la vegetación en la Mata Atlántica

Directory of Open Access Journals (Sweden)

Adi Estela Lazos Ruíz

2017-04-01

Full Text Available El paisaje de hoy es un reflejo de usos sobrepuestos a lo largo del tiempo, cada época va dejando huellas. Los bosques suelen tomar parte de esas transformaciones y están por lo tanto marcados por la historia. En este trabajo recopilamos evidencias de usos pasados dentro del bosque de Mata Atlántica del sureste brasileño a través de macrovestigios (e.g. ruinas, caminos antiguos, etc. y del estudio de la configuración de la vegetación (e.g. identificando especies y su estado sucesional. Utilizando la metodología de lectura del paisaje, asociamos estos elementos presentes en el bosque actual con su contexto histórico y ofrecemos una posible interpretación. De esta manera, los macrovestigios y la vegetación resultan ser particularmente útiles como “documentos” para los paisajes sin historia. El reconocimiento del valor histórico del bosque es importante para fortalecer la identidad de los pueblos y para incluirlo en medidas de gestión y conservación de los recursos.
Studies on Phlebotominae (Diptera: Psychodidae) in the campus FIOCRUZ mata Atlântica, Jacarepaguá, in the City of Rio de Janeiro, Brazil.

Science.gov (United States)

Souza, Nataly Araujo de; Silva, Juliana Bastos da; Godoy, Rodrigo Espíndola; Souza, Filipe Jonas Mattos de; Andrade-Coelho, Cláudia Alves de; Silva, Vanderlei Campos; Azevedo, Alfredo Carlos Rodrigues de; Rangel, Elizabeth Ferreira

2015-01-01

The presence of American cutaneous leishmaniasis (ACL) in the communities of the Campus FIOCRUZ Mata Atlântica (CFMA) in the City of Rio de Janeiro initiated the investigation of the Phlebotominae fauna in the Atlantic Forest to determine the occurrence of putative ACL vectors associated with the enzootic cycle. For 24 consecutive months, sand flies were captured inside the forest and in the border area near the communities. The following sand fly species were identified: Brumptomyia brumpti, Brumptomyia cunhai, Brumptomyia nitzulescui, Lutzomyia edwardsi, Lutzomyia pelloni, and Lutzomyia quinquefer. Other identified sand fly vectors, such as Lutzomyia intermedia (the predominant species), Lutzomyia migonei, Lutzomyia whitmani, Lutzomyia fischeri, and Lutzomyia hirsuta hirsuta, are associated with ACL transmission, and the vector for American visceral leishmaniases (AVL), Lutzomyia longipalpis, was also found. All sand fly vectors were found in both studied environments except for Lutzomyia whitmani, which was only identified in the forest. This study represents the first identification of Lutzomyia longipalpis in the CFMA, and the epidemiological implications are discussed.
Temporal Bone Fracture Causing Superior Semicircular Canal Dehiscence

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Kevin A. Peng

2014-01-01

Full Text Available Importance. Superior semicircular canal dehiscence (SCD is a third window lesion of the inner ear causing symptoms of vertigo, autophony, tinnitus, and hearing loss. A “two-hit” hypothesis has traditionally been proposed, whereby thinly developed bone overlying the superior canal is disrupted by a sudden change in intracranial pressure. Although the symptoms of SCD may be precipitated by head injury, no previous reports have described a temporal bone fracture directly causing SCD. Observations. Two patients sustained temporal bone fractures after closed head trauma, and developed unilateral otologic symptoms consistent with SCD. In each instance, computed tomography imaging revealed fractures extending through the bony roof of the superior semicircular canal. Conclusions and Relevance. Temporal bone fractures, which are largely treated nonoperatively, have not previously been reported to cause SCD. As it is a potentially treatable entity, SCD resulting from temporal bone fracture must be recognized as a possibility and diagnosed promptly if present.
Conocimientos, actitudes y prácticas relacionados con el consumo de sustancias psicoactivas en estudiantes de enfermería de una universidad del departamento del Atlántico (Colombia

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Julio Melina Castrillo

2012-01-01

Full Text Available Objetivo: Establecer los conocimientos, actitudes y prácticas relacionados con el consumo de sustancias psicoactivas en estudiantes de enfermería de una universidad del departamento del Atlántico. Materiales y métodos: Estudio descriptivo transversal; población diana: estudiantes de primero a octavo semestre de enfermería de una universidad del departamento del Atlántico (Colombia. Fuente de información primaria, instrumento utilizado: encuesta de 37 preguntas validada. La información se procesó en el software SPSS, se tabuló en tablas de frecuencia y asociación, gráficas de barras y sectores, la información resumida se manejó en frecuencias relativas, medidas de tendencia central y se determinó significancia estadística mediante proporciones. Resultados: El 71,5% tiene conocimiento sobre la composición de las sustancias psicoactivas. El 45% está totalmente en desacuerdo con el consumo de sustancias psicoactivas para relacionarse fácilmente con la gente. El 37,2% está totalmente en desacuerdo con consumir sustancias psicoactivas para divertirse. El 90,7% está de acuerdo con la inversión de recursos económicos en programas de rehabilitación, seguimiento de la población afectada por el consumo de drogas. El 55,5 % consumé alcohol, el 22,2% consume éxtasis y el 22,2 restante consume marihuana y bazuco. Conclusiones: Se encontró un balance negativo en cuanto al consumo de sustancias psicoactivas en los estudiantes de enfermería, debido a que la gran mayoría ha consumido sustancias psicoactivas. Además de encontrarse deficiencia relacionada al conocimientos de las mismas, y en cuanto a las actitudes, se concluyó que la mayoría de los sujetos estudiados tiene actitudes favorables relacionadas con la legalización de las sustancias psicoactivas.
Ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock: Case report

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Kerem Seref Corbacioglu

2016-03-01

Full Text Available Pseudoaneurysm of the superior gluteal artery (SGA is very rare and the most common causes are blunt or penetrating pelvic traumas. Although pseudoaneurysm can be asymptomatic at the time of initial trauma, it can be symptomatic weeks, months, even years after initial trauma. We present a case of a ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock twenty days after a bomb injury in the Syria civil war. In addition, we review the anatomy of the SGA, clinical presentation and pitfalls of pseudoaneurysm, and imaging and treatment options. Keywords: Pseudoaneurysm, Superior gluteal artery, Pitfall, Angiography
A network biology approach evaluating the anticancer effects of bortezomib identifies SPARC as a therapeutic target in adult T-cell leukemia cells

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Yu Zhang

2008-10-01

Full Text Available Junko H Ohyashiki1, Ryoko Hamamura2, Chiaki Kobayashi2, Yu Zhang2, Kazuma Ohyashiki21Intractable Immune System Disease Research Center, Tokyo Medical University, Tokyo, Japan; 2First Department of Internal Medicine, Tokyo Medical University, Tokyo, JapanAbstract: There is a need to identify the regulatory gene interaction of anticancer drugs on target cancer cells. Whole genome expression profiling offers promise in this regard, but can be complicated by the challenge of identifying the genes affected by hundreds to thousands of genes that induce changes in expression. A proteasome inhibitor, bortezomib, could be a potential therapeutic agent in treating adult T-cell leukemia (ATL patients, however, the underlying mechanism by which bortezomib induces cell death in ATL cells via gene regulatory network has not been fully elucidated. Here we show that a Bayesian statistical framework by VoyaGene® identified a secreted protein acidic and rich in cysteine (SPARC gene, a tumor-invasiveness related gene, as a possible modulator of bortezomib-induced cell death in ATL cells. Functional analysis using RNAi experiments revealed that inhibition of the expression SPARC by siRNA enhanced the apoptotic effect of bortezomib on ATL cells in accordance with an increase of cleaved caspase 3. Targeting SPARC may help to treat ATL patients in combination with bortezomib. This work shows that a network biology approach can be used advantageously to identify the genetic interaction related to anticancer effects.Keywords: network biology, adult T cell leukemia, bortezomib, SPARC
Comparison of the Keratometric Corneal Astigmatic Power after Phacoemulsification: Clear Temporal Corneal Incision versus Superior Scleral Tunnel Incision

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Yongqi He

2009-01-01

Full Text Available Objective. This is prospective randomized control trial to compare the mean keratometric corneal astigmatism diopter power (not surgical induced astigmatism among preop and one-month and three-month postop phacoemulcification of either a clear temporal corneal incision or a superior scleral tunnel Incision, using only keratometric astigmatic power reading to evaluate the difference between the two cataract surgery incisions. Methods. 120 patients (134 eyes underwent phacoemulcification were randomly assigned to two groups: Group A, the clear temporal corneal incision group, and Group B, the superior scleral tunnel incision group. SPSS11.5 Software was used for statistical analysis to compare the postsurgical changes of cornea astigmatism on keratometry. Results. The changes of corneal astigmatic diopter in Groups A and B after 3 month postop from keratometric reading were 1.04 + 0.76 and 0.94 + 0.27, respectively (=.84>.05, which showed no statistic significance difference. Conclusion. The incision through either temporal clear cornea or superior scleral tunnel in phacoemulcification shows no statistic difference in astigmatism change on keratometry 3-month postop.

Superior vena cava obstruction caused by radiation induced venous fibrosis

NARCIS (Netherlands)

Van Putten, JWG; Schlosser, NJJ; Vujaskovic, Z; Van der Leest, AHD; Groen, HJM

Superior vena cava syndrome is most often caused by lung carcinoma. Two cases are described in whom venous obstruction in the superior mediastinum was caused by local vascular fibrosis due to radiotherapy five and seven years earlier. The development of radiation injury to greater vessels is
The Penokean orogeny in the Lake Superior region

Science.gov (United States)

Schulz, K.J.; Cannon, W.F.

2007-01-01

The Penokean orogeny began at about 1880 Ma when an oceanic arc, now the Pembine-Wausau terrane, collided with the southern margin of the Archean Superior craton marking the end of a period of south-directed subduction. The docking of the buoyant craton to the arc resulted in a subduction jump to the south and development of back-arc extension both in the initial arc and adjacent craton margin to the north. A belt of volcanogenic massive sulfide deposits formed in the extending back-arc rift within the arc. Synchronous extension and subsidence of the Superior craton resulted in a broad shallow sea characterized by volcanic grabens (Menominee Group in northern Michigan). The classic Lake Superior banded iron-formations, including those in the Marquette, Gogebic, Mesabi and Gunflint Iron Ranges, formed in that sea. The newly established subduction zone caused continued arc volcanism until about 1850 Ma when a fragment of Archean crust, now the basement of the Marshfield terrane, arrived at the subduction zone. The convergence of Archean blocks of the Superior and Marshfield cratons resulted in the major contractional phase of the Penokean orogeny. Rocks of the Pembine-Wausau arc were thrust northward onto the Superior craton causing subsidence of a foreland basin in which sedimentation began at about 1850 Ma in the south (Baraga Group rocks) and 1835 Ma in the north (Rove and Virginia Formations). A thick succession of arc-derived turbidites constitutes most of the foreland basin-fill along with lesser volcanic rocks. In the southern fold and thrust belt tectonic thickening resulted in high-grade metamorphism of the sediments by 1830 Ma. At this same time, a suite of post-tectonic plutons intruded the deformed sedimentary sequence and accreted arc terranes marking the end of the Penokean orogeny. The Penokean orogen was strongly overprinted by younger tectonic and thermal events, some of which were previously ascribed to the Penokean. Principal among these was a
Virtual dissection and comparative connectivity of the superior longitudinal fasciculus in chimpanzees and humans

Science.gov (United States)

Hecht, Erin E.; Gutman, David A.; Bradley, Bruce A.; Preuss, Todd M.; Stout, Dietrich

2015-01-01

Many of the behavioral capacities that distinguish humans from other primates rely on fronto-parietal circuits. The superior longitudinal fasciculus (SLF) is the primary white matter tract connecting lateral frontal with lateral parietal regions; it is distinct from the arcuate fasciculus, which interconnects the frontal and temporal lobes. Here we report a direct, quantitative comparison of SLF connectivity using virtual in vivo dissection of the SLF in chimpanzees and humans. SLF I, the superior-most branch of the SLF, showed similar patterns of connectivity between humans and chimpanzees, and was proportionally volumetrically larger in chimpanzees. SLF II, the middle branch, and SLF III, the inferior-most branch, showed species differences in frontal connectivity. In humans, SLF II showed greater connectivity with dorsolateral prefrontal cortex, whereas in chimps SLF II showed greater connectivity with the inferior frontal gyrus. SLF III was right-lateralized and proportionally volumetrically larger in humans, and human SLF III showed relatively reduced connectivity with dorsal premotor cortex and greater extension into the anterior inferior frontal gyrus, especially in the right hemisphere. These results have implications for the evolution of fronto-parietal functions including spatial attention to observed actions, social learning, and tool use, and are in line with previous research suggesting a unique role for the right anterior inferior frontal gyrus in the evolution of human fronto-parietal network architecture. PMID:25534109
Sedimentation rates and depositional processes in Lake Superior from 210Pb geochronology

International Nuclear Information System (INIS)

Evans, J.E.; Johnson, T.C.; Alexander, E.C. Jr.; Lively, R.S.; Eisenreich, S.J.

1981-01-01

Sedimentation rates range from 0.01 to 0.32 cm/yr in 17 sediment box cores from Lake Superior, as determined by 210 Pb geochronology. Shoreline erosion and resuspension of nearshore sediments causes moderate to high (0.05-0.11 cm/yr) sedimentation rates in the western arm of Lake Superior. Sedimentation rates are very high (> 0.15 cm/yr) in marginal bays adjoining Lake Superior; and moderate to very high (0.07-0.19 cm/yr) in open lake regions adjacent to marginal bays. Resuspension of nearshore and shoal top sediments in southern and southeastern Lake Superior by storms is responsible for depositional anomalies in 210 Pb profiles corresponding to 1905, 1916-1918, and 1940 storms. Sedimentation rates are very low (0.01-0.03 cm/yr) in the central basins due to isolation from sediment sources. These data indicate that sedimentation rates and processes vary significantly in different regions of Lake Superior. The sedimentation rates provided by this study, in conjunction with previously-reported sedimentation rates, yield a better understanding of the Lake Superior depositional environment
Superior haptic-to-visual shape matching in autism spectrum disorders.

Science.gov (United States)

Nakano, Tamami; Kato, Nobumasa; Kitazawa, Shigeru

2012-04-01

A weak central coherence theory in autism spectrum disorder (ASD) proposes that a cognitive bias toward local processing in ASD derives from a weakness in integrating local elements into a coherent whole. Using this theory, we hypothesized that shape perception through active touch, which requires sequential integration of sensorimotor traces of exploratory finger movements into a shape representation, would be impaired in ASD. Contrary to our expectation, adults with ASD showed superior performance in a haptic-to-visual delayed shape-matching task compared to adults without ASD. Accuracy in discriminating haptic lengths or haptic orientations, which lies within the somatosensory modality, did not differ between adults with ASD and adults without ASD. Moreover, this superior ability in inter-modal haptic-to-visual shape matching was not explained by the score in a unimodal visuospatial rotation task. These results suggest that individuals with ASD are not impaired in integrating sensorimotor traces into a global visual shape and that their multimodal shape representations and haptic-to-visual information transfer are more accurate than those of individuals without ASD. Copyright © 2012 Elsevier Ltd. All rights reserved.
Alencastro, Luiz Felipe de, O trato dos viventes: Formação do Brasil no Atlântico Sul, séculos XVI e XVII, (São Paulo: Companhia das Letras, 2000, 525 p.)

OpenAIRE

Guzmán, Décio de Alencar

2005-01-01

O Brasil no contexto do Atlântico Sul. Esta é a escala de análise do livro de Luiz Felipe de Alencastro, professor de História do Brasil na Universidade de Paris-Sorbonne. A tese paradoxal do livro é a de que "o Brasil formou-se fora do Brasil". Como explicar isto? A explicação do professor Alencastro para este paradoxo não parte da formação do território colonial português na América do Sul, tal como tem praticado a historiografia brasileira para explicar a história colonial do país. Ela par...
Composição e distribuição espacial e sazonal de anfíbios em unidade de conservação da Mata Atlântica, Alfredo Chaves, Espírito Santo

OpenAIRE

Dantas, Roberto de Barros

2009-01-01

Este estudo objetivou determinar a composição e distribuição espacial e sazonal de anfíbios anuros da Reserva Particular do Patrimônio Natural Oiutrem, fragmento de Mata Atlântica, região de montanha, Alfredo Chaves, Espírito Santo, Brasil, bem como testar a correlação das variáveis climáticas sobre a atividade de vocalização dessas espécies. As amostragens ocorreram de janeiro de 2008 a fevereiro de 2009, empregando-se os métodos de busca ativa e armadilhas de interceptação e queda (pitfalls...
The Dynamic Character of a Psychological Contract between the Superior and the Employee (According to Empirical Research

Directory of Open Access Journals (Sweden)

Anna ROGOZIŃSKA-PAWEŁCZYK

2015-12-01

Full Text Available This article analyses the dynamic character of relationships between superiors and employees in the context of a psychological contract. One of the assumptions is that superiors and employees’ shared understanding of their mutual obligations and expectations underpins the performance of the psychological contract. The article explains the concept of a psychological contract and addresses possible breaches thereto as well as their impact on the shape of relationships between superiors and employees. Information necessary to carry out the analysis was obtained from surveys conducted with 178 representatives of large and medium-sized firms based in Poland and with 800 of their employees. In addition to determining the state and contents of a psychological contract as felt by superiors and employees, the article provides also a description and the rankings of their mutual expectations and obligations related to a psychological contract. The degree of similarity between the opinions of the surveyed superiors and employees on each other’s obligations and expectations was assessed with a specially constructed index (an opinion coincidence index, OCI. the results of the surveys and the direction and amount of OCI’s deviation from show that while employees and superiors frequently differ in the perceptions of their expectations and obligations, there are also areas where their opinions are identical. It has also been found that employees’ perception of the contents of a psychological contract depends on their age and the number of years they have worked in the organisation. This fact points to the dynamic character of a psychological contract.
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Comparison of Cultivars and Seasonal Variation in Blueberry (Vaccinium Species) Leaf Extract on Adult T-Cell Leukemia Cell Line Growth Suppression.

Science.gov (United States)

Kai, Hisahiro; Fuse, Takuichi; Kunitake, Hisato; Morishita, Kazuhiro; Matsuno, Koji

2014-06-30

The inhibitory effects of blueberry leaves on the proliferation of adult T-cell leukemia (ATL) cell lines have previously been reported. A comparison of blueberry leaf extracts from different cultivars and seasonal variation were investigated regarding their effects on ATL cell line proliferation. The inhibitory effects of 80% ethanol leaf extracts from different blueberry cultivars collected from April to December in 2006 or 2008 were evaluated using two ATL cell lines. The bioactivities of leaf extracts of rabbit-eye blueberry ( Vaccinium virgatum Aiton; RB species), southern highbush blueberry ( V. spp.; SB species), northern highbush blueberry ( V. corymbosum L.; NB species), and wild blueberry ( V. bracteatum Thunb.; WB species) were compared. Of these, leaves of the RB species collected in December showed a significantly stronger inhibitory effect in both cell lines than the SB, NB, or WB species. These results suggest elevated biosynthesis of ATL-preventative bioactive compounds in the leaves of the RB species before the defoliation season.
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Limiar anaerÃ³bico: comparaÃ§Ã£o entre os mÃ©todos directos e indirectos em nadadores de alta competiÃ§Ã£o Portugueses(+(+ Trabalho apresentado sob forma de comunicaÃ§Ã£o oral no II Congresso Hispano-Luso de Pneumologia. Sevilha, 21 de Abril de 1993 econcorrente ao PrÃ©mio ThomÃ© Villar 1993 (SecÃ§Ã£o B. da SPPR.

Directory of Open Access Journals (Sweden)

CecÃlia Longo

1995-01-01

resultados do nosso trabalho levam-nos a concluir que, ou o valor do ATL Ã© superior ao convencionado classicamente em indivÃduos treinados, ou entÃ£o nÃ£o hÃ¡ sobreposiÃ§Ã£o entre o ATL e o ATV. ABSTRACT: We compare the ventililtory threshold (ATV with a 4Â mmol/1 of the lactatemie (ATL during a progressive maximal shedule. Lactates were determined by the enzymatic method. ATV determination was done by two independent observers.We studied 23 portuguese elite swimmers, with an average training of 15 hours/week; 16 were male and 7 female. Mean age was 15.8Â Â±2.5Â years old. When we compared cardiorespiratory parameters and load at the level of ATL and ATV, we found statistical significance in the following parameters:â¢ p<0.01: the total load, the load/ kg of weight, heart frequency andâ¢ p<0.05: the minute ventilation, the VCO2, the relation of VO2 at AT and VO2 maximum in pourcentage, the respiratory ratio (QR.We conclude that in trained swimmers there are no superposition between ATL and ATV. Key-words: lactates, anaerobic threshold, ventilatory threshold, swimmers, Palavras-chave: lactatos, limiar anaerÃ³bico, limiar ventilatÃ³rio, nadadores
The clinical application of the implantation of retrievable filters in superior vena cava

International Nuclear Information System (INIS)

Tian Yulong; Zhang Xitong; Hong Duo

2011-01-01

Objective: To investigate the safety of the placement of Tulip retrievable filter in superior vena cava and to discuss the prevention of pulmonary embolism (PE). Methods: Implantation of Tulip retrievable filter in superior vena cava was performed in ten patients (6 males and 4 females, aged 42-60 years) with acute or subacute deep venous thrombosis in upper extremity or cephalo-cervical region. After the placement of filter, the local via-catheter thrombolysis was conducted. The clinical results, such as the improvement of venous obstructed symptoms at upper extremity or cephalo-cervical region, were recorded. The filter's shape and location were checked. The possible occurrence of pulmonary embolism was observed. Results: The filter was successfully implanted in supper vena cava in all patients, and the deep venous thrombosis at upper extremity and cephalo-cervical region responded well to the local via-catheter thrombolysis. The filters showed no displacement or tilting. The swelling at upper extremity and cephalo-cervical region was markedly faded away. No symptomatic pulmonary embolism occurred. the filter was successfully retrieved via the femoral vein in four patients. Conclusion: Tulip filter can be safety implanted in superior vena cava and can be smoothly retrieved. The occurrence of pulmonary embolism can be effectively prevented if corresponding local via-catheter thrombolysis is carried out. (authors)
Computed tomography imaging for superior semicircular canal dehiscence syndrome

International Nuclear Information System (INIS)

Dobeli, Karen

2006-01-01

Superior semicircular canal dehiscence is a newly described syndrome of sound and/or pressure induced vertigo. Computed tomography (CT) imaging plays an important role in confirmation of a defect in the bone overlying the canal. A high resolution CT technique utilising 0.5 mm or thinner slices and multi-planar reconstructions parallel to the superior semicircular canal is required. Placement of a histogram over a suspected defect can assist CT diagnosis
The reproduction of lake trout in southern Lake Superior

Science.gov (United States)

Eschmeyer, Paul H.

1955-01-01

The principal spawning grounds of lake trout (Salvelinus namaycush namaycush) in United States waters of southern Lake Superior are on rocky shoals at depths of less than 20 fathoms. Most spawning occurs in October and early November. Of the mature fish collected on or near the spawning grounds, 60 to 69 percent were males. Among mature fish the average length of females was greater than that of males; few males less than 24 inches or females less than 26 inches in total length were caught. Recoveries of lake trout tagged on the spawning grounds showed that some males remained in the immediate area for a period of several weeks during the spawning season. Marked fish showed a tendency to return during later years to spawning grounds on which they had been tagged, even though many of them ranged long distances between spawning seasons.
Incidence of dehiscence of the bony roof of the superior semicircular canal by CT imaging

International Nuclear Information System (INIS)

Watanabe, Akira

2003-01-01

Dehiscence of the bony roof of the superior semicircular canal (SSCC) is rare, but it has been recognized by otologists since Minor et al first described superior canal dehiscence syndrome (SCDS). In this study, dehiscence of the bony roof of SSCC was incidentally detected in three patients with benign paroxysmal positional vertigo out of 49 serial patients with vertigo and dizziness by multi-slice computed tomography. Although detection of dehiscence of the SSCC by ultra-high-resolution CT imaging of the temporal bones has been required for a diagnosis of SCDS, this study showed that dehiscence of the bony roof of the SSCC can be an incidental finding and therefore is not specific for SCDS. (author)
Superior Administrative Court Baden-Wuerttemberg. Judgement of March 30, 1982 (Wyhl)

International Nuclear Information System (INIS)

Anon.

1983-01-01

Presentation and discussion of the leading statements of the decision delivered by the Mannheim Superior Administrative Court on March 30, 1982 concerning the Wyhl nuclear power plant, unit 1. With this decision, covering 548 pages, the Superior Administrative Court changed the decision of the Freiburg Administrative Court of the year 1977 and finally dismissed the action for annulment of the construction licence. The Superior Administrative Court acted upon the appeal brought in by the Land and the plant operator, Kernkraftwerksgesellschaft. (CB) [de
Sex differences in emotion recognition: Evidence for a small overall female superiority on facial disgust.

Science.gov (United States)

Connolly, Hannah L; Lefevre, Carmen E; Young, Andrew W; Lewis, Gary J

2018-05-21

Although it is widely believed that females outperform males in the ability to recognize other people's emotions, this conclusion is not well supported by the extant literature. The current study sought to provide a strong test of the female superiority hypothesis by investigating sex differences in emotion recognition for five basic emotions using stimuli well-calibrated for individual differences assessment, across two expressive domains (face and body), and in a large sample (N = 1,022: Study 1). We also assessed the stability and generalizability of our findings with two independent replication samples (N = 303: Study 2, N = 634: Study 3). In Study 1, we observed that females were superior to males in recognizing facial disgust and sadness. In contrast, males were superior to females in recognizing bodily happiness. The female superiority for recognition of facial disgust was replicated in Studies 2 and 3, and this observation also extended to an independent stimulus set in Study 2. No other sex differences were stable across studies. These findings provide evidence for the presence of sex differences in emotion recognition ability, but show that these differences are modest in magnitude and appear to be limited to facial disgust. We discuss whether this sex difference may reflect human evolutionary imperatives concerning reproductive fitness and child care. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
Exploring the word superiority effect using TVA

DEFF Research Database (Denmark)

Starrfelt, Randi

Words are made of letters, and yet sometimes it is easier to identify a word than a single letter. This word superiority effect (WSE) has been observed when written stimuli are presented very briefly or degraded by visual noise. It is unclear, however, if this is due to a lower threshold for perc...... simultaneously we find a different pattern: In a whole report experiment with six stimuli (letters or words), letters are perceived more easily than words, and this is reflected both in perceptual processing speed and short term memory capacity....... for perception of words, or a higher speed of processing for words than letters. We have investigated the WSE using methods based on a Theory of Visual Attention. In an experiment using single stimuli (words or letters) presented centrally, we show that the classical WSE is specifically reflected in perceptual...
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Coastal geology and recent origins for Sand Point, Lake Superior

Science.gov (United States)

Fisher, Timothy G.; Krantz, David E.; Castaneda, Mario R.; Loope, Walter L.; Jol, Harry M.; Goble, Ronald J.; Higley, Melinda C.; DeWald, Samantha; Hansen, Paul

2014-01-01

Sand Point is a small cuspate foreland located along the southeastern shore of Lake Superior within Pictured Rocks National Lakeshore near Munising, Michigan. Park managers’ concerns for the integrity of historic buildings at the northern periphery of the point during the rising lake levels in the mid-1980s greatly elevated the priority of research into the geomorphic history and age of Sand Point. To pursue this priority, we recovered sediment cores from four ponds on Sand Point, assessed subsurface stratigraphy onshore and offshore using geophysical techniques, and interpreted the chronology of events using radiocarbon and luminescence dating. Sand Point formed at the southwest edge of a subaqueous platform whose base is probably constructed of glacial diamicton and outwash. During the post-glacial Nipissing Transgression, the base was mantled with sand derived from erosion of adjacent sandstone cliffs. An aerial photograph time sequence, 1939–present, shows that the periphery of the platform has evolved considerably during historical time, infl uenced by transport of sediment into adjacent South Bay. Shallow seismic refl ections suggest slump blocks along the leading edge of the platform. Light detection and ranging (LiDAR) and shallow seismic refl ections to the northwest of the platform reveal large sand waves within a deep (12 m) channel produced by currents fl owing episodically to the northeast into Lake Superior. Ground-penetrating radar profi les show transport and deposition of sand across the upper surface of the platform. Basal radiocarbon dates from ponds between subaerial beach ridges range in age from 540 to 910 cal yr B.P., suggesting that Sand Point became emergent during the last ~1000 years, upon the separation of Lake Superior from Lakes Huron and Michigan. However, optically stimulated luminescence (OSL) ages from the beach ridges were two to three times as old as the radiocarbon ages, implying that emergence of Sand Point may have begun
THE HUMAN SUBJECTIVITY BETWEEN THE SUPERIOR AND INFERIOR TYPES A SUBJETIVIDADE HUMANA ENTRE OS TIPOS SUPERIORES E INFERIORES

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Vagner Silva

2011-12-01

Full Text Available This article attempts to solve the following contradiction of Nietzsche's thought: man has a subjective drive constitution, these drives, however, are individuals, and its being (the being of the drives, is constituted for more power fight (the will to power. Nietzsche's superior man (educated and cultivated man is that one, in which there is harmony in the drives, who can give greater freedom to its most terrible drives, without, however, loses the control over them. That is the contradiction: if man has to control the drives, they are not harmonics. There is incompatibility between harmony and control. In other words, the superior man is indeed the man of culture and cultivated man of Nietzsche? If the answer to this question is yes, then, in this man, reigns the drives harmony. If, on the other hand, the answer is no, then, for this man does not become a barbarian destroyer, dangerous to himself and to others it is necessary that a drive dominates the others. However it is not possible to escape the contradiction: either there is harmony in human drive or control.Este artigo busca resolver a seguinte contradição do pensamento de Nietzsche: o homem possui uma constituição subjetiva pulsional, estas pulsões, porém, são individuais, e o seu ser, o das pulsões, constitui-se da luta por mais poder (vontade de poder. O homem superior de Nietzsche (homem culto e cultivado é aquele no qual há harmonia nas pulsões, aquele que pode dar mais liberdade às suas mais terríveis pulsões, sem, no entanto, perder o controle sobre elas. Eis a contradição: se o homem superior exerce controle sobre as pulsões então elas não são harmônicas. Há, aqui, a incompatibilidade entre harmonia e controle. Em outros termos: o homem superior é de fato o homem culto e cultivado de Nietzsche? Se a resposta para esta pergunta for sim, então neste homem reina a harmonia pulsional. Se, por outro lado, a resposta for não, então, para que este homem n
The impact of configural superiority on the processing of spatial information.

Science.gov (United States)

Bratch, Alexander; Barr, Shawn; Bromfield, W Drew; Srinath, Aparna; Zhang, Jack; Gold, Jason M

2016-09-01

The impact of context on perception has been well documented for over a century. In some cases, the introduction of context to a set of target features may produce a unified percept, leading to a quicker and more accurate classification; a configural superiority effect (Pomerantz, Sager, & Stoever, 1977). Although this effect has been well characterized in terms of the stimulus features that produce the effect, the specific impact context has on the spatial strategies adopted by observers when making perceptual judgments remains unclear. Here, we sought to address this question by using the methods of response classification and ideal observer analysis. In our main experiment, we used a stimulus set known to produce the configural superiority effect and found that although observers were faster in the presence of context, they were actually less efficient at extracting stimulus information. This surprising result was attributable to the use of a spatial strategy in which observers relied on redundant, noninformative features in the presence of context. A control experiment ruled out the possibility that the mere presence of added context led to these strategic shifts. Our results support previous notions about the nature of the perceptual shifts that are induced by the configural superiority effect. However, they also show that configural processing is more nuanced than originally thought: Although observers may be faster at making judgments when context induces the percept of a configural whole, there appears to be a hidden cost in terms of the efficiency with which information is used. (PsycINFO Database Record (c) 2016 APA, all rights reserved).
A Unique T-Cell Receptor Amino Acid Sequence Selected by Human T-Cell Lymphotropic Virus Type 1 Tax301-309-Specific Cytotoxic T Cells in HLA-A24:02-Positive Asymptomatic Carriers and Adult T-Cell Leukemia/Lymphoma Patients.

Science.gov (United States)

Ishihara, Yuko; Tanaka, Yukie; Kobayashi, Seiichiro; Kawamura, Koji; Nakasone, Hideki; Gomyo, Ayumi; Hayakawa, Jin; Tamaki, Masaharu; Akahoshi, Yu; Harada, Naonori; Kusuda, Machiko; Kameda, Kazuaki; Ugai, Tomotaka; Wada, Hidenori; Sakamoto, Kana; Sato, Miki; Terasako-Saito, Kiriko; Kikuchi, Misato; Kimura, Shun-Ichi; Tanihara, Aki; Kako, Shinichi; Uchimaru, Kaoru; Kanda, Yoshinobu

2017-10-01

We previously reported that the T-cell receptor (TCR) repertoire of human T-cell lymphotropic virus type 1 (HTLV-1) Tax 301-309 -specific CD8 + cytotoxic T cells (Tax 301-309 -CTLs) was highly restricted and a particular amino acid sequence motif, the PDR motif, was conserved among HLA-A*24:02-positive (HLA-A*24:02 + ) adult T-cell leukemia/lymphoma (ATL) patients who had undergone allogeneic hematopoietic cell transplantation (allo-HSCT). Furthermore, we found that donor-derived PDR + CTLs selectively expanded in ATL long-term HSCT survivors with strong CTL activity against HTLV-1. On the other hand, the TCR repertoires in Tax 301-309 -CTLs of asymptomatic HTLV-1 carriers (ACs) remain unclear. In this study, we directly identified the DNA sequence of complementarity-determining region 3 (CDR3) of the TCR-β chain of Tax 301-309 -CTLs at the single-cell level and compared not only the TCR repertoires but also the frequencies and phenotypes of Tax 301-309 -CTLs between ACs and ATL patients. We did not observe any essential difference in the frequencies of Tax 301-309 -CTLs between ACs and ATL patients. In the single-cell TCR repertoire analysis of Tax 301-309 -CTLs, 1,458 Tax 301-309 -CTLs and 140 clones were identified in this cohort. Tax 301-309 -CTLs showed highly restricted TCR repertoires with a strongly biased usage of BV7, and PDR, the unique motif in TCR-β CDR3, was exclusively observed in all ACs and ATL patients. However, there was no correlation between PDR + CTL frequencies and HTLV-1 proviral load (PVL). In conclusion, we have identified, for the first time, a unique amino acid sequence, PDR, as a public TCR-CDR3 motif against Tax in HLA-A*24:02 + HTLV-1-infected individuals. Further investigations are warranted to elucidate the role of the PDR + CTL response in the progression from carrier state to ATL. IMPORTANCE ATL is an aggressive T-cell malignancy caused by HTLV-1 infection. The HTLV-1 regulatory protein Tax aggressively promotes the

Ajuste de un modelo VARMA para los campos de anomalías de precipitación en Centroamérica y los índices de los océanos Pacífico y Atlántico Tropical

OpenAIRE

Alfaro Martínez, Eric J.; Cid Serrano, Luis Ramón

2001-01-01

Artículo científico -- Universidad de Costa Rica. Centro de Investigaciones Geofísicas, 2001 Diversos estudios han mostrado que condiciones anómalas de la temperatura superficial del mar (ATSM) de los océanos Pacífico y Atlántico Tropical, afectan la intensidad y duración de la estación lluviosa sobre Centroamérica. Con el fin de identificar en la región las estaciones pluviométricas con curvas de anomalías similares entre sí, 72 estaciones de precipitación de la región fueron sometidas a ...
La cultura escrita en el Mundo Atlántico colonial: Brasil y América del norte. Claves historiográficas, retos y perspectivas

Directory of Open Access Journals (Sweden)

González Sánchez, Carlos Alberto

2013-12-01

Full Text Available This article seeks a critical assessment on Written Culture of colonials Brazil and North America. Its aim is to set out historiographic balance that allows us a comparative prospect with the rest of the American Continent. As a last resort it wants to provide new study perspectives relating to the need for a common history of the Americas. Perhaps this objective can go beyond the topics and disparate underestandings that distort Atlantic World History.Este artículo pretende hacer una valoración crítica de la investigación sobre la cultura escrita de Brasil y Norteamérica coloniales, con el fin de plantear un balance historiográfico que nos permita una perspectiva comparativa con los estudios realizados sobre el resto del continente americano. En última instancia, intenta ofrecer unas nuevas perspectivas de estudio fundamentadas en la necesidad de una historia común de las Américas, que puedan superar los tópicos y concepciones dispares que deforman la historia del Mundo Atlántico.
Age-related audiovisual interactions in the superior colliculus of the rat.

Science.gov (United States)

Costa, M; Piché, M; Lepore, F; Guillemot, J-P

2016-04-21

It is well established that multisensory integration is a functional characteristic of the superior colliculus that disambiguates external stimuli and therefore reduces the reaction times toward simple audiovisual targets in space. However, in a condition where a complex audiovisual stimulus is used, such as the optical flow in the presence of modulated audio signals, little is known about the processing of the multisensory integration in the superior colliculus. Furthermore, since visual and auditory deficits constitute hallmark signs during aging, we sought to gain some insight on whether audiovisual processes in the superior colliculus are altered with age. Extracellular single-unit recordings were conducted in the superior colliculus of anesthetized Sprague-Dawley adult (10-12 months) and aged (21-22 months) rats. Looming circular concentric sinusoidal (CCS) gratings were presented alone and in the presence of sinusoidally amplitude modulated white noise. In both groups of rats, two different audiovisual response interactions were encountered in the spatial domain: superadditive, and suppressive. In contrast, additive audiovisual interactions were found only in adult rats. Hence, superior colliculus audiovisual interactions were more numerous in adult rats (38%) than in aged rats (8%). These results suggest that intersensory interactions in the superior colliculus play an essential role in space processing toward audiovisual moving objects during self-motion. Moreover, aging has a deleterious effect on complex audiovisual interactions. Copyright © 2016 IBRO. Published by Elsevier Ltd. All rights reserved.
A new Nitinol stent for use in superior vena cava syndrome

DEFF Research Database (Denmark)

Andersen, Poul Erik; Midtgaard, Annette; Brenøe, Anne-Sofie

2015-01-01

AIM: The aim of the study was to assess the early clinical experience with the Zilver Vena stent in treating patients with malignant superior vena cava syndrome. METHODS: Demographic, procedural, and follow-up data of 12 patients (seven women; mean age 69 years) treated for superior vena cava...... syndrome with in all 21 Zilver Vena stents between March 2012 and October 2013 were retrospectively reviewed. All cavographies and contrast enhanced CT related to the treatment and during follow-up were evaluated and the patients had clinical follow-up until dead. They were all in terminal state...... at the time of stent deployment. RESULTS: All patients had superior vena cava obstruction and clinical superior vena cava syndrome caused by malignant expansive mediastinal disease (eight patients non-small cell lung cancer and four small cell lung cancer). The technical success with deployment of the stents...
Superior Cross-Species Reference Genes: A Blueberry Case Study

Science.gov (United States)

Die, Jose V.; Rowland, Lisa J.

2013-01-01

The advent of affordable Next Generation Sequencing technologies has had major impact on studies of many crop species, where access to genomic technologies and genome-scale data sets has been extremely limited until now. The recent development of genomic resources in blueberry will enable the application of high throughput gene expression approaches that should relatively quickly increase our understanding of blueberry physiology. These studies, however, require a highly accurate and robust workflow and make necessary the identification of reference genes with high expression stability for correct target gene normalization. To create a set of superior reference genes for blueberry expression analyses, we mined a publicly available transcriptome data set from blueberry for orthologs to a set of Arabidopsis genes that showed the most stable expression in a developmental series. In total, the expression stability of 13 putative reference genes was evaluated by qPCR and a set of new references with high stability values across a developmental series in fruits and floral buds of blueberry were identified. We also demonstrated the need to use at least two, preferably three, reference genes to avoid inconsistencies in results, even when superior reference genes are used. The new references identified here provide a valuable resource for accurate normalization of gene expression in Vaccinium spp. and may be useful for other members of the Ericaceae family as well. PMID:24058469
Superior cross-species reference genes: a blueberry case study.

Directory of Open Access Journals (Sweden)

Jose V Die

Full Text Available The advent of affordable Next Generation Sequencing technologies has had major impact on studies of many crop species, where access to genomic technologies and genome-scale data sets has been extremely limited until now. The recent development of genomic resources in blueberry will enable the application of high throughput gene expression approaches that should relatively quickly increase our understanding of blueberry physiology. These studies, however, require a highly accurate and robust workflow and make necessary the identification of reference genes with high expression stability for correct target gene normalization. To create a set of superior reference genes for blueberry expression analyses, we mined a publicly available transcriptome data set from blueberry for orthologs to a set of Arabidopsis genes that showed the most stable expression in a developmental series. In total, the expression stability of 13 putative reference genes was evaluated by qPCR and a set of new references with high stability values across a developmental series in fruits and floral buds of blueberry were identified. We also demonstrated the need to use at least two, preferably three, reference genes to avoid inconsistencies in results, even when superior reference genes are used. The new references identified here provide a valuable resource for accurate normalization of gene expression in Vaccinium spp. and may be useful for other members of the Ericaceae family as well.
Histological evaluation of levator palpebralis superior muscle in patients with congenital blepharoptosis

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Sevda Söker

2011-03-01

Full Text Available The aim of this study was to examine levator palpebralis superior muscle histologically in patients with congenital blepharoptosis and to investigate the relationship between these findings and age, sex and degree of blefaroptosis in this patient group.Materials and methods: Levator muscle of 13 patients with congenital ptosis, who had applied to Dicle University Medical Faculty Ophthalmology Clinic and had undergone levator palpebralis superior muscle resection between january 2009-january 2010, has been examined histopathologically in Histology and Embriology Deparment. During preoperative period, ptosis amount, levator function (LF, tear functions, Bell’s phenomenon and jaw-winking phenomenon were evaluated. All patients underwent resection of levator palpebralis superior muscle. Received postoperative levator muscle was examined by light microscopy.Results: The average age of 9 (69.2% male and 4 (30.8% female cases were 10.61 ± 4.77 (4- 19 years. In histological examination, the quality and quantity of the levator muscle fibrils have been assessed. There was no relationship detected between histological features of levator palpebralis superior muscle and patient’s age and gender (p>0.05. Patients with weak levator palpebralis superior muscle were detected to have fatty degeneration histologically. The higher the levator palpebralis superior muscle function revealed decreased fatty degeneration and increased skeletal muscle fibrils.Conclusion: More ultrastructural studies in larger populations are needed to support the relationship between structure and function of levator palpebralis superior muscle in patients with congenital blepharoptosis.
Forest Structure and the Species Composition of the Parque Estadual Mata Atlântica, Located in Goiás State, Brazil

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Ismael Martins Pereira

2018-01-01

Full Text Available The Parque Estadual Mata Atlântica (PEMA, Goiás state, Brazil, is an Atlantic Forest reserve which has not been studied yet. The aims were to investigate plant biodiversity and characterize the flora to support the management plan. We adopt the point-centered quarter method to inventory the tree-shrub and lianas with the diameter at breast height more than or equal to 5 cm. The study was performed through 1.86 km of transect with 187 sampled points. We sampled 748 individuals and identified 109 species, 82 genera, and 51 families. The Shannon-Wiener diversity index (H′ was 3.97, and Pielou’s evenness (J was 0.846, both considered high. The Fabaceae family was the most diverse with 20 species. Aspidosperma polyneuron, an endangered tree species, had greater relative dominance and importance value. The floristic similarity analysis indicated that the PEMA vegetation belongs to the seasonal forest, currently very fragmented and degraded. Due to several anthropogenic threats, we suggest the following recommendations: prevent the exploitation of species, avoid hunting, control invasive grasses, prevent forest fires, and promote environmental education. This study demonstrates the importance of PEMA for species conservation. Therefore, this study is essential for the development of management plan and the conservation of PEMA biodiversity.
Effect of Advanced Trauma Life Support program on medical interns' performance in simulated trauma patient management.

Science.gov (United States)

Ahmadi, Koorosh; Sedaghat, Mohammad; Safdarian, Mahdi; Hashemian, Amir-Masoud; Nezamdoust, Zahra; Vaseie, Mohammad; Rahimi-Movaghar, Vafa

2013-01-01

Since appropriate and time-table methods in trauma care have an important impact on patients'outcome, we evaluated the effect of Advanced Trauma Life Support (ATLS) program on medical interns' performance in simulated trauma patient management. A descriptive and analytical study before and after the training was conducted on 24 randomly selected undergraduate medical interns from Imam Reza Hospital in Mashhad, Iran. On the first day, we assessed interns' clinical knowledge and their practical skill performance in confronting simulated trauma patients. After 2 days of ATLS training, we performed the same study and evaluated their score again on the fourth day. The two findings, pre- and post- ATLS periods, were compared through SPSS version 15.0 software. P values less than 0.05 were considered statistically significant. Our findings showed that interns'ability in all the three tasks improved after the training course. On the fourth day after training, there was a statistically significant increase in interns' clinical knowledge of ATLS procedures, the sequence of procedures and skill performance in trauma situations (P less than 0.001, P equal to 0.016 and P equal to 0.01 respectively). ATLS course has an important role in increasing clinical knowledge and practical skill performance of trauma care in medical interns.
Impaired expression of GABA transporters in the human Alzheimer's disease hippocampus, subiculum, entorhinal cortex and superior temporal gyrus.

Science.gov (United States)

Fuhrer, Tessa E; Palpagama, Thulani H; Waldvogel, Henry J; Synek, Beth J L; Turner, Clinton; Faull, Richard L; Kwakowsky, Andrea

2017-05-20

Gamma-aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the brain and plays an important role in regulating neuronal excitability. GABA reuptake from the synapse is dependent on specific transporters - mainly GAT-1, GAT-3 and BGT-1 (GATs). This study is the first to show alterations in the expression of the GATs in the Alzheimer's disease (AD) hippocampus, entorhinal cortex and superior temporal gyrus. We found a significant increase in BGT-1 expression associated with AD in all layers of the dentate gyrus, in the stratum oriens of the CA2 and CA3 and the superior temporal gyrus. In AD there was a significant decrease in GAT-1 expression in the entorhinal cortex and superior temporal gyrus. We also found a significant decrease in GAT-3 immunoreactivity in the stratum pyramidale of the CA1 and CA3, the subiculum and entorhinal cortex. These observations indicate that the expression of the GATs shows brain-region- and layer-specific alterations in AD, suggesting a complex activation pattern of different GATs during the course of the disease. Copyright © 2017 IBRO. Published by Elsevier Ltd. All rights reserved.
Os cursos superiores de tecnologia no contexto de expansão da educação superior no Brasil: a retomada da ênfase na educação profissional

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Juliana Favretto

2013-06-01

Full Text Available O artigo analisa a expansão e o comportamento da oferta dos cursos superiores de tecnologia no âmbito da educação superior brasileira. Resgata a origem da educação profissional, das legislações e ações públicas que constituíram o processo de desenvolvimento da educação superior tecnológica no Brasil. Apresenta evidências da estrutura da oferta de cursos superiores de tecnologia, em nível de categoria acadêmica, administrativa e distribuição regional, no período de 2000 a 2010, um recorte de dados secundários extraídos do banco de dados do Inep/MEC. Os dados revelam que houve uma expansão substancial dos cursos superiores de tecnologia no período analisado, quando comparados aos demais cursos de graduação, com maior ênfase no setor privado e no âmbito acadêmico das universidades.
Identification and characterization of an autolysin-encoding gene of Streptococcus mutans.

Science.gov (United States)

Shibata, Yukie; Kawada, Miki; Nakano, Yoshio; Toyoshima, Kuniaki; Yamashita, Yoshihisa

2005-06-01

We identified a gene (atlA) encoding autolytic activity from Streptococcus mutans Xc. The AtlA protein predicted to be encoded by atlA is composed of 979 amino acids with a molecular weight of 107,279 and has a conserved beta-1,4-N-acetylmuramidase (lysozyme) domain in the C-terminal portion. Sodium dodecyl sulfate extracts of strain Xc showed two major bacteriolytic bands with molecular masses of 107 and 79 kDa, both of which were absent from a mutant with inactivated atlA. Western blot analysis revealed that the 79-kDa band was derived from the 107-kDa peptide by cleavage of its N-terminal portion. The inactivation of atlA resulted in a marked decrease in autolysis and the formation of very long chains of cells compared to the case for the parent strain. Although both the parent and mutant strains formed biofilms in the presence of sucrose, the biofilms formed by the mutant had a sponge-like architecture with large gaps and contained 30% less biomass than those formed by the parent strain. Furthermore, strain Xc formed glucose-dependent, loose biofilms in the absence of sucrose, but the mutant lost this ability. These results suggest that AtlA may play an important role in biofilm formation by S. mutans. The antibody produced against the C-terminal peptide containing the beta-1,4-N-acetylmuramidase domain drastically inhibited the autolytic activity of strain Xc. This inhibition was specific among the oral streptococci to S. mutans. These results indicate that the catalytic domain of AtlA is located at the C terminus, suggesting that further characterization of this domain may provide a means to control cariogenic dental plaque formation.
Parahippocampectomy as a New Surgical Approach to Mesial Temporal Lobe Epilepsy Caused By Hippocampal Sclerosis: A Pilot Randomized Comparative Clinical Trial.

Science.gov (United States)

Alonso-Vanegas, Mario Arturo; Freire Carlier, Iván D; San-Juan, Daniel; Martínez, Alma Rosa; Trenado, Carlos

2018-02-01

The parahippocampal gyrus plays an important role in the epileptogenic pathways of mesial temporal lobe epilepsy caused by hippocampal sclerosis (mTLE-HS); its resection could prevent epileptic seizures with fewer complications. This study evaluates the initial efficacy and safety of anterior temporal lobectomy (ATL), selective amygdalohipppocampectomy (SAH), and parahippocampectomy (PHC) surgical approaches in mTLE-HS. A randomized comparative pilot clinical trial (2008-2011) was performed that included patients with mTLE-HS who underwent ATL, trans-T3 SAH, and trans-T3 PHC. Their sociodemographic characteristics, visual field profiles, verbal and visual memory profiles, and Engel scale outcome at baseline and at 1 and 5 years are described, using descriptive statistics along with parametric and nonparametric tests. Forty-three patients with a mean age of 35.2 years (18-56 years), 65% female, were analyzed: 14 underwent PHC, 14 ATL, and 15 SAH. The following percentages refer to those patients who were seizure free (Engel class IA) at 1-year and 5-year follow-up, respectively: 42.9% PHC, 71.4% ATL, and 60% SAH (P = 0.304); 28.6% PHC, 50% ATL, and 53.3% SAH (P = 0.353). Postoperative visual field deficits were 0% PHC, 85.7% ATL, and 46.7% SAH (P = 0.001). Verbal and/or visual memory worsening were present in 21.3% PHC, 42.8% ATL, and 33.4% SAH (P = 0.488) and preoperative and postoperative visual memory scores were significantly different in the SAH group only (P = 0.046). PHC, ALT, and SAH show a preliminary similar efficacy in short-term seizure-free rates in patients with mTLE-HS. However, PHC efficacy in the long-term decreases compared with the other surgical techniques. PHC does not produce postoperative visual field deficits. Copyright © 2017 Elsevier Inc. All rights reserved.
Lactococcus lactis Metabolism and Gene Expression during Growth on Plant Tissues

Science.gov (United States)

Golomb, Benjamin L.

2014-01-01

Lactic acid bacteria have been isolated from living, harvested, and fermented plant materials; however, the adaptations these bacteria possess for growth on plant tissues are largely unknown. In this study, we investigated plant habitat-specific traits of Lactococcus lactis during growth in an Arabidopsis thaliana leaf tissue lysate (ATL). L. lactis KF147, a strain originally isolated from plants, exhibited a higher growth rate and reached 7.9-fold-greater cell densities during growth in ATL than the dairy-associated strain L. lactis IL1403. Transcriptome profiling (RNA-seq) of KF147 identified 853 induced and 264 repressed genes during growth in ATL compared to that in GM17 laboratory culture medium. Genes induced in ATL included those involved in the arginine deiminase pathway and a total of 140 carbohydrate transport and metabolism genes, many of which are involved in xylose, arabinose, cellobiose, and hemicellulose metabolism. The induction of those genes corresponded with L. lactis KF147 nutrient consumption and production of metabolic end products in ATL as measured by gas chromatography-time of flight mass spectrometry (GC-TOF/MS) untargeted metabolomic profiling. To assess the importance of specific plant-inducible genes for L. lactis growth in ATL, xylose metabolism was targeted for gene knockout mutagenesis. Wild-type L. lactis strain KF147 but not an xylA deletion mutant was able to grow using xylose as the sole carbon source. However, both strains grew to similarly high levels in ATL, indicating redundancy in L. lactis carbohydrate metabolism on plant tissues. These findings show that certain strains of L. lactis are well adapted for growth on plants and possess specific traits relevant for plant-based food, fuel, and feed fermentations. PMID:25384484
Análise comparativa de carteiras com práticas de governança corporativa inferiores e superiores Stock performance of companies with superior and inferior practices of corporate governance

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Sérgio Soares Teixeira Rabelo

2007-01-01

Full Text Available Para os investidores em carteiras de ações, a criação de um clima de negócios mais saudável, obtido por meio de melhores práticas de governança corporativa, pode assegurar sobremaneira o recurso investido, diminuindo assim o risco dos retornos. Este trabalho objetiva investigar se um investidor com uma carteira de ações de empresas que possuem práticas de governança corporativa superiores (Tipo I apresenta melhor performance do que outro investidor com uma carteira de ações de empresas que possuem práticas de governança corporativa inferiores (Tipo II. Para tanto, aplicou-se um estudo de carteiras, construídas aleatoriamente e avaliadas pelo Índice de Sharpe (IS. Foi constatado que a carteira ótima de Tipo I possui maior IS do que a carteira ótima de Tipo II, e que existe uma probabilidade de 56,49% de as carteiras de Tipo I superarem o retorno da Taxa SELIC no período, enquanto essa probabilidade, para as carteiras de Tipo II, é de 55,20%. Apesar de pouco significativos, os resultados mostram indícios de que é vantajoso para um investidor formar carteiras apenas de ações de empresas que possuem práticas de governança corporativa superiores.For investors who own stock portfolios, a healthier business climate brought about by superior corporate governance may better safeguard investments. An investigation was made to determine if a portfolio of stocks of companies with superior corporate governance (Type I had a better performance than one of companies with inferior governance (Type II. Randomly assembled portfolios were evaluated by the Sharpe Index (IS and showed that the Type I portfolio had a higher IS and a higher probability of return above the SELIC rate, 56.49%, than the Type II portfolio where this probability was less, 55.20%. Although not highly significant, results pointed to an advantage for the stock portfolio of companies with the superior corporate governance
COSEE Superior Creates Passion for Science

Science.gov (United States)

COSEE was a transformative educational experience that has changed the way I teach. In July, I participated in the COSEE Lake Superior Shipboard and Shoreline Science program. I spent a week on the US EPA’s R/V Lake Guardian with 14 other teachers and a crew of sailors and scient...
Dossier: El catolicismo hispanoamericano en perspectiva atlántica. Redes, debates y actores de primera mitad del siglo XX. Hispano-American Catholicism from an Atlantic Perspective. Networks, Debates and Actors of First Half of the 20th Century

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Miranda Lida

2017-10-01

Full Text Available El presente dossier procura bucear en una temática poco explorada: las redes transnacionales atlánticas que cementan y solidifican los movimientos católicos hispanoamericanos de la primera mitad del siglo XX. Cuando se habla del movimiento católico, es ineludible prestarle atención a los vínculos con la Santa Sede, naturalmente, pero suele ser escaso el cuidado que se le presta a otros vínculos transnacionales, ya sea con movimientos católicos europeos, norteamericanos, de diferentes países latinoamericanos o bien alguna combinación entre todos ellos.
Superior sagittal sinus thrombosis: a rare complication of nephrotic syndrome.

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Tullu M

1999-10-01

Full Text Available A two and half year-old-male child, known case of steroid responsive nephrotic syndrome presented with fever and vomiting of acute onset. He was diagnosed to have superior sagittal sinus thrombosis on a contrast computerised tomographic scan of brain. Recovery was complete without anticoagulant therapy. Superior sagittal sinus thrombosis is an extremely rare complication of nephrotic syndrome.
Partial anomalous pulmonary venous connection to the superior vena cava.

Science.gov (United States)

Aramendi, José I; Rey, Estibaliz; Hamzeh, Gadah; Crespo, Alejandro; Luis, Maite; Voces, Roberto

2011-04-01

We describe the surgical technique of reimplantation of the right superior pulmonary vein into the left atrium in 2 patients with partial anomalous pulmonary venous connection to the superior vena cava without atrial septal defect. A right axillary minithoracotomy is done through the fourth intercostal space. The pulmonary vein is detached from its origin in the superior vena cava. This is sutured with 6-0 reabsorbable polydioxanone suture (Ethicon, Somerville, NJ). A lateral clamp is applied to the left atrium, and the pulmonary vein is reimplanted. The patient is extubated in the operating room. Neither cardiopulmonary bypass nor blood transfusion was required. It is simple, safe, and reproducible. Copyright © 2011 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.
Contingent Valuation Method and the beta model: an accounting economic vision for environmental damage in Atlântico Sul Shipyard

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Silvana Karina de Melo Travassos

2018-02-01

Full Text Available ABSTRACT The objective of this paper is to apply the beta model as an alternative to the Valuation Method in order to estimate the environmental asset Willingness to Pay (WTP so that the Tribunal de Contas do Estado de Pernambuco (TCE/PE can supervise the Atlântico Sul Shipyard (ASS as a negative environmental externality, which is discussed here from an accounting perspective. Our methodology is exploratory, and the beta regression model was used in the contingent valuation to estimate the environmental asset. The results allowed estimating the value of the Ipojuca mangrove at US$ 134,079,793.50, and the value of the environmental damage caused by the shipyard to the public asset was valued at US$ 61,378,155.37. This latter value is object of interest to the inspection body. However, the final estimated value of the Ipojuca mangrove prompts a discussion about the implications from an accounting point of view, such as the attribution of monetary value to a public asset that does not have a financial value, problems regarding the conceptualization and valuation of public assets for governmental patrimony. It is concluded that the beta regression model to estimate the WTP for contingent valuation will serve as a contribution to the research on accounting measurement techniques for public assets.

Effect of neck position during radionuclide superior cavography. Its value in the diagnosis of superior vena cava obstruction due to retrosternal goiter

International Nuclear Information System (INIS)

Vincken, W.; Roels, P.; Soenstaboe, R.; DeGreve, J.; Bossuyt, A.; Jonckheer, M.

1983-01-01

In five patients with substernal goiter, three of whom presented with superior vena cava (SVC) syndrome, and in five normal subjects, radionuclide superior cavography (RNSC) was performed with extension and flexion of the neck during tracer administration (simultaneous bilateral injection of Tc- 99 m pertechnetate). When the tracer was injected during neck extension, venous flow pattern was abnormal in four of five patients, and transit time (TT) prolonged in three of five patients. In this posture, mean TT +/- 1 standard deviation (SD) was 6.3 +/- 2.6 s (range 3.5 to 9 s) for the five patients and 3.5 +/- 0.7 s (range 2.5 to 4.5 s) for a group of five control subjects. When the tracer was injected during neck flexion, all five patients showed abnormal flow patterns and prolonged TT (mean +/- 1 SD 10.1 +/- 4.1 s; range 4.4 to 16 s), in contrast to the control group where a slight decrease in TT was found (mean +/- 1 SD 3 +/- 0.6 s; range 2 to 3.5 s). In the presence of a substernal goiter, or any mobile mass at the thoracic inlet, impairment of venous flow through the SVC system appears to be a common occurrence, readily detectable by RNSC. RNSC should be performed with neck flexion during tracer injection, since in this posture its ability to detect compromised venous flow through the SVC system is enhanced, even in patients without a clinically apparent SVC syndrome
Influence of superior cervical ganglionectomy on hippocampal neurogenesis and learning and memory in adult rats

Institute of Scientific and Technical Information of China (English)

Yanping Ding; Baoping Shao; Shiyuan Yu; Shanting Zhao; Jianlin Wang

2009-01-01

BACKGROUND: Studies have shown that neurogenesis in the dentate gyrus plays an important role in learning and memory. However, studies have not determined whether the superior cervical ganglion or the sympathetic nerve system influences hippocampal neurogenesis or learning and memory in adult rats. OBJECTIVE: To observe differences in dentate gyrus neurogenesis, as well as learning and memory, in adult rats following superior cervical ganglionectomy. DESIGN, TIME AND SETTING: A randomized, controlled, animal study was performed at the Immunohistochemistry Laboratory of the School of Life Sciences in Lanzhou University from July 2006 to July 2007.MATERIALS: Doublecortin polyclonal antibody was provided by Santa Cruz Biotechnology, USA;avidin-biotin-peroxidase complex was purchased from Zhongshan Goldenbride Biotechnology, China;Morris water maze was bought from Taimeng Technology, China. METHODS: A total of 20 adult, male, Wistar rats were randomly divided into surgery and control groups, with 10 rats in each group. In the surgery group, the bilateral superior cervical ganglions were transected. In the control group, the superior cervical ganglions were only exposed, but no ganglionectomy was performed. MAIN OUTCOME MEASURES: To examine distribution, morphology, and number of newborn neurons in the dentate gyrus using doublecortin immunohistochemistry at 36 days following surgical procedures. To examine ability of learning and memory in adult rats using the Morris water maze at 30 days following surgical procedures. RESULTS: Doublecortin immunohistochemical results showed that a reduction in the number of doublecortin-positive neurons in the surgery group compared to the control group (P＜0.05), while the distribution of doublecortin-positive neurons was identical in the two groups. The surgery group exhibited significantly worse performance in learning and spatial memory tasks compared to the control group (P＜0.05). CONCLUSION: Superior cervical ganglionectomy
(Mis)placed central venous catheter in the left superior intercostal vein

International Nuclear Information System (INIS)

Padovan, Ranka Stern; Paar, Maja Hrabak; Aurer, Igor

2010-01-01

Chest X-ray is routinely performed to check the position of the central venous catheter (CVC) inserted through the internal jugular or subclavian vein, while the further evaluation of CVC malfunction is usually performed by contrast venography. In patients with superior vena cava obstruction, the tip of the catheter is often seen in collateral mediastinal venous pathways, rather than in the superior vena cava. In such cases detailed knowledge of thoracic vessel anatomy is necessary to identify the exact location of the catheter. We report a case of 32-year-old female patient with relapsing mediastinal lymphoma and previous superior vena cava obstruction with collateral azygos-hemiazygos venous pathways. The patient had CVC inserted through the left subclavian vein and its position was detected by CT to be in the dilated left superior intercostal vein and accessory hemiazygos vein. Considering that dilated accessory hemiazygos vein can tolerate infusion, the CVC was left in place and the patient had no complaints related to CVC (mal)position. Furthermore, we present anatomical and radiological observations on the azygos-hemiazygos venous system with the special emphasis on the left superior intercostal vein. Non-contrast CT scans can be a valuable imaging tool in the detection of the CVC position, especially in patients with renal insufficiency and contrast media hypersensitivity
The pygmy whitefish, Coregonus coulteri, in Lake Superior

Science.gov (United States)

Eschmeyer, Paul H.; Bailey, Reeve M.

1955-01-01

Bottom trawling by the U. S. Fish and Wildlife Service motor vessel Cisco in Lake Superior in 1952–1953 revealed a large population of a tiny whitefish, Coregonus (Prosopium) coulteri, which has been reported previously only from northwestern North America. The hiatus in range, from Lake Superior to the Columbia River basin, is the greatest known for a North American freshwater fish. Although minor structural differences characterize the disjunct populations of the pygmy whitefish, these are not deemed worthy of nomenclatorial recognition. Comparisons with related species indicate that the pygmy whitefish is distinctive in the small size, large scales, few vertebrae, few pyloric caeca, and in other characters.
Hacia una educación superior inclusiva en Colombia

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Sandra Lucia Arizabaleta Dominguez

2016-12-01

Full Text Available En este artículo se analizan concepciones teórico-conceptuales básicas que subyacen a la educación superior inclusiva, en el marco de los Lineamientos de la Política de Educación Superior Inclusiva del Ministerio de Educación Nacional de Colombia (men. Además, se plantean los desafíos que deben asumir las instituciones de educación superior (ies en la identificación de barreras de aprendizaje de su población estudiantil y la promoción de estrategias que garanticen la accesibilidad, permanencia, pertinencia académica y la graduación. Esta situación lleva a las ies a reflexionar y repensarse a partir de los procesos de autoevaluación institucional para crear estrategias participativas que promuevan la gestión inclusiva en un sistema educativo equitativo, pertinente y de calidad
INFORMATION ASSURANCE - INTELLIGENCE - INFORMATION SUPERIORITY RELATIONSHIP WITHIN NATO OPERATIONS

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Gheorghe BOARU, Ioan-Mihai ILIEŞ

2011-01-01

Full Text Available There is a tight relationship between information assurance, the intelligence cycle and information superiority within NATO operations. The intelligence cycle has a discrete architecture and provides on-time and relevant intelligence products to the joint force commanders and to other authorized users in a specifi c joint area of operations. The intelligence cycle must follow the evolution of the operation. A permanent intelligence estimate will be performed during the military decision making process and operations execution. Information superiority is one of the most powerful intelligence cycle achievements. and decisively infuences the success of NATO joint operations. Information superiority must be preserved and enhanced through information assurance. Information assurance is an information operation that must be planned by the military in charge of operation security or by non-military experts, executed by all personnel during the entire intelligence cycle life time and employed during the planning and execution of NATO joint operations.
Development of technology for fuel alcohol. ; Searching and breeding of superior bacteria. Nenryoyo alcohol gijutsu kaihatsu. ; Yushukin no kensakuter dot ikushu

Energy Technology Data Exchange (ETDEWEB)

1990-10-01

In order to develop superior ethanol fermenting bacteria which would directly transform fibers into ethanol, which would lead to the utilization of unused waste industrial agricultural and forestry products, separation of potential strains from extensive collections of microbe resources from in and out of this country and adding of salt resistance, alcohol resistance, cellulose digestion properties using bio-technology were conducted. In searching for superior bacteria, some cells used in the sugar test plant showed no decrease in fermentation yields in 0.4% CaCl{sub 2}, 0.25 MgCl{sub 2} cultures, and some showed no decrease even with 1% KCl. In the breeding of superior bacteria, zymomonus with 4 times CMCase (a component enzyme of a cellulose degrading enzyme) activity, zymomonus which could grow in maltose cultures, zymomonus which had xylose isomerase genes linked to pyruvate carboxylase promoters, zymomonus resistant to 7% ethanol and 1% KCl, thermophilic and anaerobic cellulose degrading bacteria were developed. 1 tab.
Fenologia reprodutiva de Syagrus romanzoffiana (Cham. Glassman (Arecaceae em Floresta Atlântica no sul do Brasil

Directory of Open Access Journals (Sweden)

Romualdo Morelatto Begnini

2013-08-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2013v26n4p53 Este estudo avaliou a fenologia reprodutiva de Syagrus romanzoffiana em área de vegetação secundária de Floresta Atlântica no Parque Municipal da Lagoa do Peri, Florianópolis, Santa Catarina, Brasil. As avaliações foram feitas a cada 30 dias, em 39 palmeiras reprodutivas, de junho de 2006 a julho de 2008. Dois eventos de floração foram registrados, um de novembro de 2006 a fevereiro de 2007 e outro de outubro de 2007 a março de 2008, com maior intensidade em dezembro de 2006 (média±dp (0,38±0,63 inflorescências/planta e janeiro de 2008 (0,59±0,55. A frutificação foi contínua, com frutos verdes presentes em todos os 26 meses e maior intensidade em março de 2008 (1,64±1,11 infrutescências/planta. Os frutos maduros estiveram presentes de forma descontínua, podendo ocorrer entre março e novembro, com as maiores intensidades em julho de 2006 (0,56±0,50 e em julho de 2008 (0,51±0,51. As médias mensais de inflorescências e de infrutescências maduras por planta apresentaram correlações significativas com o fotoperíodo, a precipitação e a temperatura dos meses correntes do período de estudo. Syagrus romanzoffiana apresentou variações na intensidade reprodutiva entre 2006 e 2008, com períodos de maior e de menor intensidade.
Residual symptoms after surgery for unilateral congenital superior oblique palsy.

Science.gov (United States)

Caca, Ihsan; Sahin, Alparslan; Cingu, Abdullah; Ari, Seyhmus; Akbas, Umut

2012-01-01

To establish the surgical results and residual symptoms in 48 cases with unilateral congenital superior oblique muscle palsy that had surgical intervention to the vertical muscles alone. Myectomy and concomitant disinsertion of the inferior oblique (IO) muscle was performed in 38 cases and myectomy and concomitant IO disinsertion and recession of the superior rectus muscle in the ipsilateral eye was performed in 10 cases. The preoperative and postoperative vertical deviation values and surgical results were compared. Of the patients who had myectomy and concomitant IO disinsertion, 74% achieved an "excellent" result, 21% a "good" result, and 5% a "poor" result postoperatively. The difference in deviation between preoperative and postoperative values was statistically significant (P < .001). Of the patients who had myectomy and concomitant inferior oblique disinsertion and ipsilateral superior rectus recession, 50% achieved an "excellent" result, 20% a "good" result, and 30% a "poor" result postoperatively. The difference in deviation between preoperative and postoperative values was statistically significant (P < .001). Both procedures are effective and successful in patients with superior oblique muscle palsy, but a secondary surgery may be required. Copyright 2012, SLACK Incorporated.
Ancient bacteria show evidence of DNA repair

DEFF Research Database (Denmark)

Johnson, Sarah Stewart; Hebsgaard, Martin B; Christensen, Torben R

2007-01-01

-term survival of bacteria sealed in frozen conditions for up to one million years. Our results show evidence of bacterial survival in samples up to half a million years in age, making this the oldest independently authenticated DNA to date obtained from viable cells. Additionally, we find strong evidence...... geological timescales. There has been no direct evidence in ancient microbes for the most likely mechanism, active DNA repair, or for the metabolic activity necessary to sustain it. In this paper, we couple PCR and enzymatic treatment of DNA with direct respiration measurements to investigate long...... that this long-term survival is closely tied to cellular metabolic activity and DNA repair that over time proves to be superior to dormancy as a mechanism in sustaining bacteria viability....
Utility of extended FAST in blunt chest trauma: is it the time to be used in the ATLS algorithm?

Science.gov (United States)

Abdulrahman, Yassir; Musthafa, Shameel; Hakim, Suhail Y; Nabir, Syed; Qanbar, Ahad; Mahmood, Ismail; Siddiqui, Tariq; Hussein, Wafaa A; Ali, Hazim H; Afifi, Ibrahim; El-Menyar, Ayman; Al-Thani, Hassan

2015-01-01

The clinical significance of extended Focused Assessment with Sonography for Trauma (EFAST) for diagnosis of pneumothorax is not well defined. To investigate the utility of EFAST in blunt chest trauma (BCT) patients. A single blinded, prospective study. All patients admitted with BCT (2011-2013). Level 1 trauma center in Qatar. Patients were screened by EFAST and results were compared to the clinical examination (CE) and chest X-ray (CXR). Chest-computed tomography (CT) scoring system was used to confirm and measure the pneumothorax. Diagnostic accuracy of diagnostic modalities of pneumothorax was measured using sensitivity, specificity, predictive values (PVs), and likelihood ratio. A total of 305 BCT patients were included with median age of 34 (18-75). Chest CT was positive for pneumothorax in 75 (24.6 %) cases; of which 11 % had bilateral pneumothorax. Chest CT confirmed the diagnosis of pneumothorax in 43, 41, and 11 % of those who were initially diagnosed by EFAST, CE, and CXR, respectively. EFAST was positive in 42 hemithoraces and its sensitivity (43 %) was higher in comparison to CXR (11 %). Positive and negative PVs of EFAST were 76 and 92 %, respectively. The frequency of missed cases by CXR was higher in comparison to EFAST and CE. The lowest median score of missed pneumothorax was observed by EFAST. EFAST can be used as an efficient triaging tool in BCT patients to rule out pneumothorax. Based on our analysis, we would recommend EFAST as an adjunct in ATLS algorithm.
77 FR 35857 - Safety Zone, Fireworks Display, Lake Superior; Duluth, MN

Science.gov (United States)

2012-06-15

... 1625-AA00 Safety Zone, Fireworks Display, Lake Superior; Duluth, MN AGENCY: Coast Guard, DHS. ACTION... of Lake Superior during the Duluth Fourth Fest fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with fireworks displays. DATES: This...
Bifactor Models Show a Superior Model Fit: Examination of the Factorial Validity of Parent-Reported and Self-Reported Symptoms of Attention-Deficit/Hyperactivity Disorders in Children and Adolescents.

Science.gov (United States)

Rodenacker, Klaas; Hautmann, Christopher; Görtz-Dorten, Anja; Döpfner, Manfred

2016-01-01

Various studies have demonstrated that bifactor models yield better solutions than models with correlated factors. However, the kind of bifactor model that is most appropriate is yet to be examined. The current study is the first to test bifactor models across the full age range (11-18 years) of adolescents using self-reports, and the first to test bifactor models with German subjects and German questionnaires. The study sample included children and adolescents aged between 6 and 18 years recruited from a German clinical sample (n = 1,081) and a German community sample (n = 642). To examine the factorial validity, we compared unidimensional, correlated factors and higher-order and bifactor models and further tested a modified incomplete bifactor model for measurement invariance. Bifactor models displayed superior model fit statistics compared to correlated factor models or second-order models. However, a more parsimonious incomplete bifactor model with only 2 specific factors (inattention and impulsivity) showed a good model fit and a better factor structure than the other bifactor models. Scalar measurement invariance was given in most group comparisons. An incomplete bifactor model would suggest that the specific inattention and impulsivity factors represent entities separable from the general attention-deficit/hyperactivity disorder construct and might, therefore, give way to a new approach to subtyping of children beyond and above attention-deficit/hyperactivity disorder. © 2016 S. Karger AG, Basel.
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File list: NoD.Neu.20.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

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Superior H2 production by hydrophilic ultrafine Ta2O5 engineered covalently on graphene

International Nuclear Information System (INIS)

Mao, Lin; Zhu, Shenmin; Shi, Dian; Chen, Yixin; Yin, Chao; Li, Yao; Zhang, Di; Ma, Jun; Chen, Zhixin

2014-01-01

A H 2 O 2 -mediated hydrothermal method was developed for the fabrication of hydrophilic Ta 2 O 5 /graphene composite. The composite shows a superior H 2 productivity, up to 30 mmol g −1 h −1 when used as a photocatalyst for water splitting, corresponding to an apparent quantum efficiency of 33.8% at 254 nm. This superior performance is due to the hydrophilic nature of the composite and more importantly due to the ultrafine Ta 2 O 5 nanoparticles (about 4.0 ± 1.5 nm) which are covalently bonded with the conductive graphene. The hydrophilic property of the composite is attributed to the use of H 2 O 2 in the hydrothermal process. The ultrafine size of the Ta 2 O 5 particles which are covalently bonded with the graphene sheets is attributed to the use of sonication in the synthesis process. Furthermore, the hydrophilic Ta 2 O 5 /Gr composite is durable, which is beneficial to long term photocatalysis. The strategy reported here provides a new approach to designing photocatalysts with superior performance for H 2 production. (papers)
Response Surface Methodology Optimization of Ultrasonic-Assisted Extraction of Acer Truncatum Leaves for Maximal Phenolic Yield and Antioxidant Activity.

Science.gov (United States)

Yang, Lingguang; Yin, Peipei; Fan, Hang; Xue, Qiang; Li, Ke; Li, Xiang; Sun, Liwei; Liu, Yujun

2017-02-04

This study is the first to report the use of response surface methodology to improve phenolic yield and antioxidant activity of Acer truncatum leaves extracts (ATLs) obtained by ultrasonic-assisted extraction. The phenolic composition in ATLs extracted under the optimized conditions were characterized by UPLC-QTOF-MS/MS. Solvent and extraction time were selected based on preliminary experiments, and a four-factors-three-levels central composite design was conducted to optimize solvent concentration ( X ₁), material-to-liquid ratio ( X ₂), ultrasonic temperature ( X ₃) and power ( X ₄) for an optimal total phenol yield ( Y ₁) and DPPH• antioxidant activity ( Y ₂). The results showed that the optimal combination was ethanol:water ( v : v ) 66.21%, material-to-liquid ratio 1:15.31 g/mL, ultrasonic bath temperature 60 °C, power 267.30 W, and time 30 min with three extractions, giving a maximal total phenol yield of 7593.62 mg gallic acid equivalent/100 g d.w. and a maximal DPPH• antioxidant activity of 74,241.61 μmol Trolox equivalent/100 g d.w. Furthermore, 22 phenolics were first identified in ATL extract obtained under the optimized conditions, indicating that gallates, gallotannins, quercetin, myricetin and chlorogenic acid derivatives were the main phenolic components in ATL. What's more, a gallotannins pathway existing in ATL from gallic acid to penta- O -galloylglucoside was proposed. All these results provide practical information aiming at full utilization of phenolics in ATL, together with fundamental knowledge for further research.
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Caracterización de la población del corregimiento de Salgar (Atlántico, Colombia como fase preliminar para la implementación de un Modelo de Atención Primaria en Salud, 2014

Directory of Open Access Journals (Sweden)

Hernando Baquero-Latorre

2015-01-01

Full Text Available Objetivo:Caracterizar la población del corregimiento de Salgar (Atlántico como fase pre-liminar para la implementación de un Modelo de Atención Primaria en Salud. Materiales y método: Investigación descriptiva transversal de ámbito comunitario. Fuente primaria, se recolectó con tarjeta familiar en el lugar de residencia. Se realizaron intervenciones en salud con docentes y estudiantes de medicina y enfermería, con base en riesgos identificados.Resultados:Se caracterizó a 418 familias, 78.9 % de estrato uno; 76 % originarias del corregimiento; 62 % están conformadas por cuatro personas o más; el 92,5 % están afiliadas al sistema de salud. Se encontró baja asistencia a controles de salud en adultos jóvenes (9 % y adolescentes (16 %; en menores de 10 años los porcentajes fueron superiores a 80 %. Asistencia a control odontológico en los últimos seis meses, 50 % en niños de 1 a 9 años y 42 % en adolescentes. Con respecto a los problemas cardiovasculares, 6 de cada 10 familias reportaron por lo menos un miembro con estas patologías, y 1 de cada 5 familias reportó antecedentes de enfermedades metabólicas. Conclusiones:En cuanto a determinantes individuales, cabe destacar que se encontraron los siguientes comportamientos de riesgo para eventos cardiovasculares: 8.3 % de las personas entre 20 y 59 años son fumadores y un 34 % de la misma población consume alcohol, lo cual cuadriplica la cifra promedio nacional (7.6 % (Encuesta Nacional de Salud. Ambos factores se encuentran ampliamente descritos como asociados a enfermedades crónicas no trasmisibles. En cuanto a los determinantes ambientales, se encontró que existe contamina-ción ambiental (37 %, escasa infraestructura y áreas verdes que posibiliten actividad física (34 % y ruido ambiental (30 %.
QUAL DEMOCRATIZAÇÃO DO ENSINO SUPERIOR?

Directory of Open Access Journals (Sweden)

François Dubet

Full Text Available Esse artigo, resultante de uma conferência, discute traços do processo de democratização do ensino superior. Procura distinguir analiticamente várias dimensões da democratização, baseadas, por sua vez, em concepções diferentes da justiça: igualdade de oportunidades, meritocracia, utilidades e equidade dos procedimentos. Cada sociedade constrói modelos de democratização desse ensino. A massificação do ensino superior desempenhou papel democrático objetivo, favorável aos grupos sociais antes excluídos. Mas massificação não equivale à democratização. Todas as categorias sociais não se beneficiam da mesma forma da massificação. A democratização do acesso ao ensino superior não depende apenas das famílias. Depende também da estrutura geral do sistema educativo. A meritocracia acadêmica constrói uma hierarquia de competências que é também social, com forte impacto reprodutivo. As desigualdades de utilidade das diferentes formações têm impacto sobre o conjunto das desigualdades sociais. Os sistemas educativos implementam distintos procedimentos de seleção, de concessão de gratuidades, bolsas e auxílios, que podem ser considerados como mais ou menos equitativos segundo as normas de justiça que mobilizam.
Superior serial memory in the blind: a case of cognitive compensatory adjustment.

Science.gov (United States)

Raz, Noa; Striem, Ella; Pundak, Golan; Orlov, Tanya; Zohary, Ehud

2007-07-03

In the absence of vision, perception of space is likely to be highly dependent on memory. As previously stated, the blind tend to code spatial information in the form of "route-like" sequential representations [1-3]. Thus, serial memory, indicating the order in which items are encountered, may be especially important for the blind to generate a mental picture of the world. In accordance, we find that the congenitally blind are remarkably superior to sighted peers in serial memory tasks. Specifically, subjects heard a list of 20 words and were instructed to recall the words according to their original order in the list. The blind recalled more words than the sighted (indicating better item memory), but their greatest advantage was in recalling longer word sequences (according to their original order). We further show that the serial memory superiority of the blind is not merely a result of their advantage in item recall per se (as we additionally confirm via a separate recognition memory task). These results suggest the refinement of a specific cognitive ability to compensate for blindness in humans.
Effect of bilateral superior oblique split lengthening on torsion

Directory of Open Access Journals (Sweden)

Jitendra Jethani

2015-01-01

Full Text Available Introduction: Superior oblique split lengthening (SOSL is done for weakening of superior oblique. It corrects the superior oblique overaction (SOOA and A pattern. Its effect on the torsion of the eye is not known. We present our data on the effect of this particular procedure on torsion. Materials and Methods: We did a study of 16 patients (32 eyes who underwent bilateral SOSL and compared the disc foveal angle (DFA preoperatively and postoperatively. The split lengthening was done from 4 mm to 7 mm depending upon the overaction of superior oblique. Results: The mean age was 15.3 ± 8.4 years. Mean preoperative DFA in the right eye (RE was −3.9° and in the left eye (LE was −2.9°. Mean postoperative DFA in RE was 0.2° and in LE was 0.9°. The mean change in the DFA for RE was 4.1° ± 1.3° and for LE was 3.8° ± 1.2°. All the patients were aligned horizontally within 6 prism diopter and no pattern and no diplopia postoperatively. The A pattern was corrected in all the patient postsurgery. For each mm of surgery, an improvement of 0.8° was seen in the DFA. Conclusion: We report the effect of SOSL on torsion. The SOSL reduces intorsion postsurgery and is, therefore, a valuable procedure in SOOA where both pattern and in torsion needs to be corrected.
Turbidity in extreme western Lake Superior. [contamination of Duluth, Minnesota water intake

Science.gov (United States)

Sydor, M.

1975-01-01

Data were obtained from ERTS images for western Lake Superior for 1972-74. Data examination showed that for easterly winds the turbidity originating along the Wisconsin shore and the resuspension areas are transported northward then out along a N.E. path where it disperses, and often, for large storms, contaminates the Duluth water intake. Contaminants such as dredging fines anywhere along these paths would likewise find their way to the intake areas in concentrations comparable to the relative red clay concentration.
Selective amygdalohippocampectomy via trans-superior temporal gyrus keyhole approach.

Science.gov (United States)

Mathon, Bertrand; Clemenceau, Stéphane

2016-04-01

Hippocampal sclerosis is the most common cause of drug-resistant epilepsy amenable for surgical treatment and seizure control. The rationale of the selective amygdalohippocampectomy is to spare cerebral tissue not included in the seizure generator. Describe the selective amygdalohippocampectomy through the trans-superior temporal gyrus keyhole approach. Selective amygdalohippocampectomy for temporal lobe epilepsy is performed when the data (semiology, neuroimaging, electroencephalography) point to the mesial temporal structures. The trans-superior temporal gyrus keyhole approach is a minimally invasive and safe technique that allows disconnection of the temporal stem and resection of temporomesial structures.
Frequency of the superior rectus muscle overaction/contracture syndrome in unilateral fourth nerve palsy.

Science.gov (United States)

Molinari, Andrea; Ugrin, Maria Cristina

2009-12-01

Superior oblique palsy is accompanied in most cases by overaction of the muscle's ipsilateral antagonist, the inferior oblique muscle. Overaction and contracture of the ipsilateral superior rectus muscle in patients with unilateral fourth (trochlear) nerve palsy is seldom discussed in the literature. The purpose of this study is to evaluate the frequency of superior rectus muscle overaction/contracture syndrome in patients with unilateral trochlear nerve palsy. The records of 198 patients with unilateral trochlear nerve palsy examined by the authors between July 1987 and July 2008 were reviewed retrospectively. All patients underwent complete eye examination with measurement of the deviation in the 9 positions of gaze and with the head tilted to both sides in all cooperative patients. Selection criteria for superior rectus muscle overaction/contracture syndrome in these patients were as follows: vertical deviation of 15(Delta) or larger in primary position, equal or larger hypertropia with the ipsilateral forced tilt test than with the eyes looking straight ahead, more than 5(Delta) hypertropia of the affected eye in horizontal gaze to the same side, hypertropia in all upgazes, and overaction of the contralateral superior oblique muscle. Of 198 patients, 33 (16.6%) met the selection criteria for superior rectus muscle overaction/contracture syndrome. Superior rectus muscle overaction/contracture syndrome frequently occurs in unilateral superior oblique palsy.
O estudo desenvolvimentista da percepção de competência atlética, da orientação motivacional, da competência motora e suas relações em crianças de escolas públicas

OpenAIRE

Gabriela de Medina Coeli Villwock

2005-01-01

O foco desta pesquisa desenvolvimental, de delineamento transversal, foi investigar a relação entre a percepção de competência atlética, a orientação motivacional e a competência motora de crianças. Especificamente, verificou-se também a relação entre gêneros e idades nas três variáveis. A amostra desta pesquisa foi aleatória, composta por 298 crianças (50% meninos e 50% meninas) com idade entre 8 e 10 anos, estudantes de escolas estaduais da cidade de São Leopoldo-RS. Como instrumentos utili...
The significance of routine thoracic computed tomography in patients with blunt chest trauma.

Science.gov (United States)

Çorbacıoğlu, Seref Kerem; Er, Erhan; Aslan, Sahin; Seviner, Meltem; Aksel, Gökhan; Doğan, Nurettin Özgür; Güler, Sertaç; Bitir, Aysen

2015-05-01

The purpose of this study is to investigate whether the use of thoracic computed tomography (TCT) as part of nonselective computed tomography (CT) guidelines is superior to selective CT during the diagnosis of blunt chest trauma. This study was planned as a prospective cohort study, and it was conducted at the emergency department between 2013 and 2014. A total of 260 adult patients who did not meet the exclusion criteria were enrolled in the study. All patients were evaluated by an emergency physician, and their primary surveys were completed based on the Advanced Trauma Life Support (ATLS) principles. Based on the initial findings and ATLS recommendations, patients in whom thoracic CT was indicated were determined (selective CT group). Routine CTs were then performed on all patients. Thoracic injuries were found in 97 (37.3%) patients following routine TCT. In 53 (20%) patients, thoracic injuries were found by selective CT. Routine TCT was able to detect chest injury in 44 (16%) patients for whom selective TCT would not otherwise be ordered based on the EP evaluation (nonselective TCT group). Five (2%) patients in this nonselective TCT group required tube thoracostomy, while there was no additional treatment provided for thoracic injuries in the remaining 39 (15%). In conclusion, we found that the nonselective TCT method was superior to the selective TCT method in detecting thoracic injuries in patients with blunt trauma. Furthermore, we were able to demonstrate that the nonselective TCT method can change the course of patient management albeit at low rates. Copyright © 2014 Elsevier Ltd. All rights reserved.
Tullio phenomenon in superior semicircular canal dehiscence syndrome.

Science.gov (United States)

Basura, Gregory J; Cronin, Scott J; Heidenreich, Katherine D

2014-03-18

Tullio phenomenon refers to eye movements induced by sound.(1) This unusual examination finding may be seen in superior semicircular canal dehiscence (SSCD) syndrome.(2) This disorder is due to absent bone over the superior semicircular canal (figure). Patients complain of dizziness triggered by loud sound, aural fullness, autophony, and pulsatile tinnitus. When Tullio phenomenon exists in SSCD syndrome, the patient develops a mixed vertical-torsional nystagmus in which the slow phase rotates up and away from the affected ear (video on the Neurology® Web site at Neurology.org). This pattern of nystagmus aligns in the plane of the dehiscent semicircular canal and is due to excitation of its afferent nerves.
Programa de Formação Interdisciplinar Superior: um novo caminho para a educação superior

Directory of Open Access Journals (Sweden)

Cibele Y. Andrade

Full Text Available Apresenta o Programa de Formação Interdisciplinar Superior (ProFIS, curso de nível superior implantado na Universidade Estadual de Campinas (Unicamp em 2011. Primeiramente, são citados os objetivos e as diretrizes que nortearam a criação do curso - aumento do ingresso de alunos de escolas públicas na universidade e a adoção de um programa de formação geral - e, em seguida, descritos, em linhas gerais, o novo curso, seu currículo e o processo de transferência dos alunos concluintes do ProFIS para os cursos de graduação da Unicamp. Conclui apresentando uma análise sobre o critério de seleção adotado, bem como alguns dados estatísticos que revelam que os propósitos de inclusão social foram plenamente alcançados pela primeira turma matriculada no programa.
Information Superiority: Outsourcing an Air Force Core Competency?

National Research Council Canada - National Science Library

McTerman, Hugh

1997-01-01

.... This thesis explores the perceived relationship between the core competency requirements for information superiority and the tasks defined for the Air Force communication, computer, and information career field...
Aging memory for pictures: Using high-density event-related potentials to understand the effect of aging on the picture superiority effect

OpenAIRE

Ally, Brandon A.; Waring, Jill D.; Beth, Ellen H.; McKeever, Joshua D.; Milberg, William P.; Budson, Andrew E.

2007-01-01

High-density event-related potentials (ERPs) were used to understand the effect of aging on the neural correlates of the picture superiority effect. Pictures and words were systematically varied at study and test while ERPs were recorded at retrieval. Here, the results of the word-word and picture-picture study-test conditions are presented. Behavioral results showed that older adults demonstrated the picture superiority effect to a greater extent than younger adults. The ERP data helped to e...
Superior Mesenteric Vein Thrombosis Associated with Hormonal Contraceptive Use

Directory of Open Access Journals (Sweden)

Nobuatsu Koyama

2016-06-01

Full Text Available A 44-year-old woman was admitted with a 7-day history of lower abdominal pain and nausea. Physical examination demonstrated tenderness in the lower abdomen without signs of peritonitis. There were no specific findings in the laboratory evaluation. She had a history of dysmenorrhea for 15 years and was taking a combined hormonal contraceptive containing 0.02 mg ethinyl estradiol and 3 mg drospirenone for 19 months. Contrast-enhanced computed tomography showed superior mesenteric vein thrombosis (SMVT. Systemic anticoagulant infusion was immediately administered and the symptoms disappeared within 2 days. The thrombus disappeared after 3 months. This case report suggests that early diagnosis of SMVT and immediate systemic anticoagulant therapy may reduce the rate of intestinal infarction.
Superiority illusion arises from resting-state brain networks modulated by dopamine.

Science.gov (United States)

Yamada, Makiko; Uddin, Lucina Q; Takahashi, Hidehiko; Kimura, Yasuyuki; Takahata, Keisuke; Kousa, Ririko; Ikoma, Yoko; Eguchi, Yoko; Takano, Harumasa; Ito, Hiroshi; Higuchi, Makoto; Suhara, Tetsuya

2013-03-12

The majority of individuals evaluate themselves as superior to average. This is a cognitive bias known as the "superiority illusion." This illusion helps us to have hope for the future and is deep-rooted in the process of human evolution. In this study, we examined the default states of neural and molecular systems that generate this illusion, using resting-state functional MRI and PET. Resting-state functional connectivity between the frontal cortex and striatum regulated by inhibitory dopaminergic neurotransmission determines individual levels of the superiority illusion. Our findings help elucidate how this key aspect of the human mind is biologically determined, and identify potential molecular and neural targets for treatment for depressive realism.
Mycotic aneurysm of the superior mesenteric artery after septic embolism; Entwicklung eines mykotischen Aneurysmas der A. mesenterica superior nach septischer Embolie

Energy Technology Data Exchange (ETDEWEB)

Schmidt, F.; Dinkel, H.P. [Institut fuer Diagnostische Radiologie, Inselspital, Universitaetsklinik Bern (Switzerland)

2002-07-01

Mycotic aneurysms of the aorta and the visceral arteries are life-threatening diseases, due to potential rupture and organ or limb ischemia. They occur in endocarditis, immunodeficiency, bacteremia and fungemia, and have a poor prognosis.We report on a case of a 54-year-old male patient suffering from abdominal angina after mitral valve replacement for septic mycotic endocarditis. In presence of a mycotic-embolic occlusion of the left popliteal artery and multiple septic organ infarctions a mycotic aneurysm of the superior mesenteric artery was found in abdominal spiral-CT.Based on sequential spiral-CT examinations, this case demonstrates the development of a septic aneurysm of the superior mesenteric artery. (orig.) [German] Mykotische Aneurysmen der Aorta und ihrer Aeste stellen wegen Rupturgefahr und moeglicher Minderperfusion von Organen und Extremitaeten eine lebensgefaehrliche Erkrankung mit unguenstiger Prognose dar. Beguenstigende Faktoren sind geschwaechte Immunabwehr, Endokarditis, Bakteriaemie und Fungaemie.Wir berichten ueber einen 54-jaehrigen Patienten, der nach einem Mitralklappenersatz bei mykotischer Endokarditis zunehmende abdominelle Beschwerden im Sinne einer Angina abdominalis entwickelte. Die abdominelle Spiralcomputertomographie zeigte ein mykotisches Aneurysma der A. mesenterica superior. Daneben bestanden ein mykotischer Verschluss der linken A. poplitea und multiple septische Organinfarkte.Der Fall demonstriert anhand sequentieller Computertomographien eindrucksvoll die Entwicklung eines septischen Viszeralarterienaneurysmas. (orig.)
El valor de la experimentación en la enseñanza de las ciencias naturales. el taller de ciencias para niños de la sede del atlántico de la universidad de costa rica: una experiencia para compartir

OpenAIRE

María Elena Arce Urbina

2002-01-01

Desde el año 1997, se viene desarrollando en la Sede del Atlántico de la Universidad de Costa Rica, el proyecto didáctico-recreativo denominado Taller de Ciencias para Niños de Segundo Ciclo, el cual tiene como objetivo principal, permitir el acercamiento de los niños y de las niñas a un sistema diferente de enseñanza de las ciencias naturales, a través de un método más atrayente y efectivo, basado en la experimentación. Se parte del principio de que es en ciencias ...

Precipitação na bacia amazônica e sua associação à variabilidade da temperatura da superfície dos oceanos Pacífico e Atlântico: uma revisão

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Leila Limberger

2016-12-01

Full Text Available Estudos sobre variabilidade climática caracterizam-se como de grande importância para os estudos geográficos já que os extremos climáticos afetam diretamente as condições socioambientais. O presente estudo visa apresentar pesquisas já desenvolvidas sobre a variabilidade climática da chuva na bacia amazônica brasileira, dos oceanos adjacentes e sobre a inter-relação entre eles, com o objetivo de apresentar o estado da arte acerca do tema e contribuir para o desenvolvimento de estudos da área na ciência geográfica. O principal fenômeno que afeta a variabilidade da chuva na bacia amazônica é o ENOS, contribuindo para períodos mais secos quando da sua fase quente e períodos mais úmidos quando de sua fase fria. Também o Atlântico desempenha papel importante na variabilidade da precipitação, especialmente por modular o posicionamento da ZCIT e o transporte de umidade para a bacia amazônica. Artigos apresentados destacam também a importância de se compreender a retroalimentação entre os fenômenos que se desenvolvem no Pacífico e Atlântico, demonstrando que se trata de processos altamente acoplados e de grande complexidade, tanto no seu funcionamento quanto nos efeitos que causam na hidrologia da bacia amazônica. Pode-se concluir que as teleconexões entre a temperatura da superfície do mar e a variabilidade das chuvas na bacia amazônica constituem um tema de grande pertinência e que várias lacunas do conhecimento ainda precisam ser preenchidas.
Identification of Novel Alleles Conferring Superior Production of Rose Flavor Phenylethyl Acetate Using Polygenic Analysis in Yeast

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Bruna Trindade de Carvalho

2017-11-01

Full Text Available Flavor compound metabolism is one of the last areas in metabolism where multiple genes encoding biosynthetic enzymes are still unknown. A major challenge is the involvement of side activities of enzymes having their main function in other areas of metabolism. We have applied pooled-segregant whole-genome sequence analysis to identify novel Saccharomyces cerevisiae genes affecting production of phenylethyl acetate (2-PEAc. This is a desirable flavor compound of major importance in alcoholic beverages imparting rose- and honey-like aromas, with production of high 2-PEAc levels considered a superior trait. Four quantitative trait loci (QTLs responsible for high 2-PEAc production were identified, with two loci each showing linkage to the genomes of the BTC.1D and ER18 parents. The first two loci were investigated further. The causative genes were identified by reciprocal allele swapping into both parents using clustered regularly interspaced short palindromic repeat (CRISPR/Cas9. The superior allele of the first major causative gene, FAS2, was dominant and contained two unique single nucleotide polymorphisms (SNPs responsible for high 2-PEAc production that were not present in other sequenced yeast strains. FAS2 encodes the alpha subunit of the fatty acid synthetase complex. Surprisingly, the second causative gene was a mutant allele of TOR1, a gene involved in nitrogen regulation. Exchange of both superior alleles in the ER18 parent strain increased 2-PEAc production 70%, nearly to the same level as in the best superior segregant. Our results show that polygenic analysis combined with CRISPR/Cas9-mediated allele exchange is a powerful tool for identification of genes encoding missing metabolic enzymes and for development of industrial yeast strains generating novel flavor profiles in alcoholic beverages.
Vertebrados marinos del neógeno del suroeste de la Península Ibérica

OpenAIRE

Toscano Grande, Antonio

2016-01-01

Esta Tesis Doctoral aborda el estudio de los vertebrados marinos presentes en las formaciones del Mioceno y Plioceno del SO de la Cuenca del Guadalquivir en la provincia de Huelva, sus aspectos evolutivos e implicaciones paleoecológicas. Los resultados obtenidos permiten definir con mayor resolución la evolución de los ecosistemas litorales y marinos del SO de la Península Ibérica durante el Neógeno superior. Durante esta época, las dos principales vías de comunicación entre el océano Atlánti...
Primeiro registro de Aedes albopictus em área da Mata Atlântica, Recife, PE, Brasil First report of Aedes albopictus in areas of rain forest in Brazil

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Cleide MR de Albuquerque

2000-06-01

Full Text Available Pela primeira vez é registrada a presença do Aedes albopictus em remanescentes de Mata Atlântica, localizada em área urbana em Recife (Pernambuco, Brasil. As coletas foram realizadas em isca humana e em criadouros de formas jovens (ocos de árvores, bambus, bromélias e pneu. A presença de Ae. albopictus na região metropolitana do Recife representa um risco potencial do inter-relacionamento dessa espécie de mosquito com a população.This is the first report of the presence of Aedes albopictus in the native rain forest, near the urban area of Recife (State of Pernambuco, Brazil. Adult female mosquitoes were collected using human bait. Mosquitoes in aquatic stages were looked for in treeholes, bamboos, bromeliads and old tires. The existence of Ae. albopictus in the metropolitan area of Recife poses a potential risk for the interaction of this mosquito species with the urban human population.
Selective activation of the superior frontal gyrus in task-switching: an event-related fNIRS study.

Science.gov (United States)

Cutini, Simone; Scatturin, Pietro; Menon, Enrica; Bisiacchi, Patrizia Silvia; Gamberini, Luciano; Zorzi, Marco; Dell'Acqua, Roberto

2008-08-15

In the task-switching paradigm, reaction time is longer and accuracy is worse in switch trials relative to repetition trials. This so-called switch cost has been ascribed to the engagement of control processes required to alternate between distinct stimulus-response mapping rules. Neuroimaging studies have reported an enhanced activation of the human lateral prefrontal cortex and the superior frontal gyrus during the task-switching paradigm. Whether neural activation in these regions is dissociable and associated with separable cognitive components of task switching has been a matter of recent debate. We used multi-channel near-infrared spectroscopy (fNIRS) to measure brain cortical activity in a task-switching paradigm designed to avoid task differences, order predictability, and frequency effects. The results showed a generalized bilateral activation of the lateral prefrontal cortex and the superior frontal gyrus in both switch trials and repetition trials. To isolate the activity selectively associated with the task-switch, the overall activity recorded during repetition trials was subtracted from the activity recorded during switch trials. Following subtraction, the remaining activity was entirely confined to the left portion of the superior frontal gyrus. The present results suggest that factors associated with load and maintenance of distinct stimulus-response mapping rules in working memory are likely contributors to the activation of the lateral prefrontal cortex, whereas only activity in the left superior frontal gyrus can be linked unequivocally to switching between distinct cognitive tasks.
Deep neural networks show an equivalent and often superior performance to dermatologists in onychomycosis diagnosis: Automatic construction of onychomycosis datasets by region-based convolutional deep neural network.

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Seung Seog Han

Full Text Available Although there have been reports of the successful diagnosis of skin disorders using deep learning, unrealistically large clinical image datasets are required for artificial intelligence (AI training. We created datasets of standardized nail images using a region-based convolutional neural network (R-CNN trained to distinguish the nail from the background. We used R-CNN to generate training datasets of 49,567 images, which we then used to fine-tune the ResNet-152 and VGG-19 models. The validation datasets comprised 100 and 194 images from Inje University (B1 and B2 datasets, respectively, 125 images from Hallym University (C dataset, and 939 images from Seoul National University (D dataset. The AI (ensemble model; ResNet-152 + VGG-19 + feedforward neural networks results showed test sensitivity/specificity/ area under the curve values of (96.0 / 94.7 / 0.98, (82.7 / 96.7 / 0.95, (92.3 / 79.3 / 0.93, (87.7 / 69.3 / 0.82 for the B1, B2, C, and D datasets. With a combination of the B1 and C datasets, the AI Youden index was significantly (p = 0.01 higher than that of 42 dermatologists doing the same assessment manually. For B1+C and B2+ D dataset combinations, almost none of the dermatologists performed as well as the AI. By training with a dataset comprising 49,567 images, we achieved a diagnostic accuracy for onychomycosis using deep learning that was superior to that of most of the dermatologists who participated in this study.
Deep neural networks show an equivalent and often superior performance to dermatologists in onychomycosis diagnosis: Automatic construction of onychomycosis datasets by region-based convolutional deep neural network.

Science.gov (United States)

Han, Seung Seog; Park, Gyeong Hun; Lim, Woohyung; Kim, Myoung Shin; Na, Jung Im; Park, Ilwoo; Chang, Sung Eun

2018-01-01

Although there have been reports of the successful diagnosis of skin disorders using deep learning, unrealistically large clinical image datasets are required for artificial intelligence (AI) training. We created datasets of standardized nail images using a region-based convolutional neural network (R-CNN) trained to distinguish the nail from the background. We used R-CNN to generate training datasets of 49,567 images, which we then used to fine-tune the ResNet-152 and VGG-19 models. The validation datasets comprised 100 and 194 images from Inje University (B1 and B2 datasets, respectively), 125 images from Hallym University (C dataset), and 939 images from Seoul National University (D dataset). The AI (ensemble model; ResNet-152 + VGG-19 + feedforward neural networks) results showed test sensitivity/specificity/ area under the curve values of (96.0 / 94.7 / 0.98), (82.7 / 96.7 / 0.95), (92.3 / 79.3 / 0.93), (87.7 / 69.3 / 0.82) for the B1, B2, C, and D datasets. With a combination of the B1 and C datasets, the AI Youden index was significantly (p = 0.01) higher than that of 42 dermatologists doing the same assessment manually. For B1+C and B2+ D dataset combinations, almost none of the dermatologists performed as well as the AI. By training with a dataset comprising 49,567 images, we achieved a diagnostic accuracy for onychomycosis using deep learning that was superior to that of most of the dermatologists who participated in this study.
Mammographic varicosities indicative of a superior mediastinal ...

African Journals Online (AJOL)

In addition, an abnormal calibre of the superficial veins can reflect not only underrying breast pathology, but a collateral venous return resulting from an upper mediastinal obstruction. A case mammographically demonstrating mammary varicosities resulting from a superior mediastinal syndrome is described. S. Afr. Med.
Síndrome de Deiscência de Canal Semicircular Superior Superior Canal Dehiscence Syndrome

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Suzane da Cunha Ferreira

2006-06-01

Full Text Available A Síndrome de Deiscência de Canal Semicircular Superior (SDCSS, primeiramente descrita em 1998 por Minor et al., caracteriza-se por vertigem associada à presença de nistagmo, relacionados à exposição a estímulos sonoros intensos ou a modificações de pressão dentro da orelha média ou intracraniana. Disacusia, em sua maioria de padrão condutivo à audiometria tonal, também pode estar presente. Nesta revisão da literatura objetivou-se abordar a SDCSS, com seus principais sinais e sintomas, achados diagnósticos e tratamento, assim como enfatizar a importância de sua inclusão dentre as causas de vertigem, visto tratar-se de acometimento ainda pouco conhecido até mesmo entre especialistas. O diagnóstico correto, além de possibilitar seu tratamento, impede que abordagens diagnósticas e terapêuticas inapropriadas sejam realizadas.The Superior Canal Dehiscence Syndrome (SCDS was first reported by Minor at. Al. (1998, and has been characterized by vertigo and vertical-torsional eye movements related to loud sounds or stimuli that change middle ear or intracranial pressure. Hearing loss, for the most part with conductive patterns on audiometry, may be present in this syndrome. We performed a literature survey in order to to present symptoms, signs, diagnostic and therapeutic approaches to the SCDS, also aiming at stressing the great importance of including this syndrome among the tractable cause of vertigo. We should emphasize that this is a recent issue, still unknown by some specialists. The Correct SCDS diagnosis, besides enabling patient treatment, precludes misdiagnosis and inadequate therapeutic approaches.
Magnetic resonance imaging in congenital superior oblique palsy

International Nuclear Information System (INIS)

Sato, Miho; Kondo, Nagako; Awaya, Shinobu; Nomura, Hideki; Yagasaki, Teiji.

1996-01-01

MRI examinations were carried out on the defined congenital superior oblique palsy in order to distinguish the congenital and acquired palsies. Subjects were 19 patients diagnosed as congenital and their MRI images of 3 or 5 mm-thick coronary slice were taken. The volume of the oblique muscle was calculated from the images and a comparison was made between the diseased and healthy normal sides. The oblique muscle volume at the diseased side was found reduced in most of congenital superior oblique palsy patients. The reduction was observed even at childhood and was thus considered to be a malformation. Further, it is conceivable that the palsy could be caused by the abnormality in the central nervous system as well as by the present anatomical abnormality. (K.H.)
Percutaneous stenting of the superior mesenteric artery for the treatment of chronic mesenteric ischemia

International Nuclear Information System (INIS)

Gweon, Hye Mi; Suh, Sang Hyun; Won, Jong Yun; Lee, Do Yun; Kim, Sam Soo

2008-01-01

We wanted to evaluate the effectiveness of stent placement on the superior mesenteric artery as a treatment for chronic mesenteric ischemia. Seven patients (mean age: 55 years, age range: 43-66 years) with chronic mesenteric ischemia were enrolled between March 2000 and September 2003. All the patients underwent pre-procedure contrast enhanced computerized tomography to evaluate for occlusion or stenosis of the mesenteric arteries and they then underwent an angiographic procedure. A balloon-expandable metal stent was placed in the superior mesenteric artery, and this was combined with balloon angioplasty and thrombolysis. We evaluated the angiographic and procedural success after the procedures. Angiographic and procedural success was obtained in 100% of the patients and the clinical symptoms improved in 100% of the patients. The patency at 6-months and 1-year was 85% and 71%, respectively. The mean follow-up period was 12 months (range: 1-25 months). During the follow-up period, ischemic symptoms recurred in 2 patients, and restenosis in a stent was confirmed with angiography; one patient was successfully treated by stent placement in the celiac artery and the other patient died due to extensive mesenteric thrombosis. For the treatment of chronic mesenteric ischemia, percutaneous stent placement on the superior mesenteric artery showed a favorable result and it was an effective alternative to surgery for the high-risk patients
Status of the shortjaw cisco (Coregonus zenithicus) in Lake Superior

Science.gov (United States)

Hoff, Michael H.; Todd, Thomas N.

2004-01-01

The shortjaw cisco (Coregonus zenithicus) was historically found in Lakes Huron, Michigan, and Superior, but has been extirpated in Lakes Huron and Michigan apparently as the result of commercial overharvest. During 1999-2001, we conducted an assessment of shortjaw cisco abundance in five areas, spanning the U.S. waters of Lake Superior, and compared our results with the abundance measured at those areas in 1921-1922. The shortjaw cisco was found at four of the five areas sampled, but abundances were so low that they were not significantly different from zero. In the four areas where shortjaw ciscoes were found, abundance declined significantly by 99% from the 1920s to the present. To increase populations of this once economically and ecologically important species in Lake Superior, an interagency rehabilitation effort is needed. Population monitoring is recommended to assess population trends and to evaluate success of rehabilitation efforts.
Graded representations of emotional expressions in the left superior temporal sulcus

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Christopher P Said

2010-03-01

Full Text Available Perceptual categorization is a fundamental cognitive process that gives meaning to an often graded sensory environment. Previous research has subdivided the visual pathway into posterior regions that processes the physical properties of a stimulus, and frontal regions that process more abstract properties such as category information. The superior temporal sulcus (STS is known to be involved in face and emotion perception, but the nature of its processing remains unknown. Here, we used targeted fMRI measurements of the STS to investigate whether its representations of facial expressions are categorical or noncategorical. Multivoxel pattern analysis showed that even though subjects were performing a categorization task, the left STS contained graded, noncategorical representations. In the right STS, representations showed evidence for both stimulus-related gradations and a categorical boundary.
Correlation between intra-abdominal pressure and pulmonary volumes after superior and inferior abdominal surgery

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Roberto de Cleva

2014-07-01

Full Text Available OBJECTIVE:Patients undergoing abdominal surgery are at risk for pulmonary complications. The principal cause of postoperative pulmonary complications is a significant reduction in pulmonary volumes (FEV1 and FVC to approximately 65-70% of the predicted value. Another frequent occurrence after abdominal surgery is increased intra-abdominal pressure. The aim of this study was to correlate changes in pulmonary volumes with the values of intra-abdominal pressure after abdominal surgery, according to the surgical incision in the abdomen (superior or inferior.METHODS:We prospectively evaluated 60 patients who underwent elective open abdominal surgery with a surgical time greater than 240 minutes. Patients were evaluated before surgery and on the 3rd postoperative day. Spirometry was assessed by maximal respiratory maneuvers and flow-volume curves. Intra-abdominal pressure was measured in the postoperative period using the bladder technique.RESULTS:The mean age of the patients was 56±13 years, and 41.6% 25 were female; 50 patients (83.3% had malignant disease. The patients were divided into two groups according to the surgical incision (superior or inferior. The lung volumes in the preoperative period showed no abnormalities. After surgery, there was a significant reduction in both FEV1 (1.6±0.6 L and FVC (2.0±0.7 L with maintenance of FEV1/FVC of 0.8±0.2 in both groups. The maximum intra-abdominal pressure values were similar (p= 0.59 for the two groups. There was no association between pulmonary volumes and intra-abdominal pressure measured in any of the groups analyzed.CONCLUSIONS:Our results show that superior and inferior abdominal surgery determines hypoventilation, unrelated to increased intra-abdominal pressure. Patients at high risk of pulmonary complications should receive respiratory care even if undergoing inferior abdominal surgery.
Correlation between intra-abdominal pressure and pulmonary volumes after superior and inferior abdominal surgery.

Science.gov (United States)

Cleva, Roberto de; Assumpção, Marianna Siqueira de; Sasaya, Flavia; Chaves, Natalia Zuniaga; Santo, Marco Aurelio; Fló, Claudia; Lunardi, Adriana C; Jacob Filho, Wilson

2014-07-01

Patients undergoing abdominal surgery are at risk for pulmonary complications. The principal cause of postoperative pulmonary complications is a significant reduction in pulmonary volumes (FEV1 and FVC) to approximately 65-70% of the predicted value. Another frequent occurrence after abdominal surgery is increased intra-abdominal pressure. The aim of this study was to correlate changes in pulmonary volumes with the values of intra-abdominal pressure after abdominal surgery, according to the surgical incision in the abdomen (superior or inferior). We prospectively evaluated 60 patients who underwent elective open abdominal surgery with a surgical time greater than 240 minutes. Patients were evaluated before surgery and on the 3rd postoperative day. Spirometry was assessed by maximal respiratory maneuvers and flow-volume curves. Intra-abdominal pressure was measured in the postoperative period using the bladder technique. The mean age of the patients was 56 ± 13 years, and 41.6% 25 were female; 50 patients (83.3%) had malignant disease. The patients were divided into two groups according to the surgical incision (superior or inferior). The lung volumes in the preoperative period showed no abnormalities. After surgery, there was a significant reduction in both FEV1 (1.6 ± 0.6 L) and FVC (2.0 ± 0.7 L) with maintenance of FEV1/FVC of 0.8 ± 0.2 in both groups. The maximum intra-abdominal pressure values were similar (p=0.59) for the two groups. There was no association between pulmonary volumes and intra-abdominal pressure measured in any of the groups analyzed. Our results show that superior and inferior abdominal surgery determines hypoventilation, unrelated to increased intra-abdominal pressure. Patients at high risk of pulmonary complications should receive respiratory care even if undergoing inferior abdominal surgery.
Acute Bilateral Superior Branch Vestibular Neuropathy

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Dario A. Yacovino

2018-05-01

Full Text Available The rapid onset of a bilateral vestibular hypofunction (BVH is often attributed to vestibular ototoxicity. However, without any prior exposure to ototoxins, the idiopathic form of BVH is most common. Although sequential bilateral vestibular neuritis (VN is described as a cause of BVH, clinical evidence for simultaneous and acute onset bilateral VN is unknown. We describe a patient with an acute onset of severe gait ataxia and oscillopsia with features compatible with acute BVH putatively due to a bilateral VN, which we serially evaluated with clinical and laboratory vestibular function testing over the course of 1 year. Initially, bilateral superior and horizontal semicircular canals and bilateral utricles were impaired, consistent with damage to both superior branches of each vestibular nerve. Hearing was spared. Only modest results were obtained following 6 months of vestibular rehabilitation. At a 1-year follow-up, only the utricular function of one side recovered. This case is the first evidence supporting an acute presentation of bilateral VN as a cause for BVH, which would not have been observed without critical assessment of each of the 10 vestibular end organs.
DEMANDA E POLÍTICAS PÚBLICAS PARA O ENSINO SUPERIOR NOS BRICS

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Simon Schwartzman

Full Text Available Este artigo analisa a expansão do ensino superior nos países chamados BRICS. A aspiração crescente pelo ensino superior obriga os governos a gerir os custos de funcionamento desse sistema. As respostas de cada país variam com sua história, cultura e regime político. Todos eles enfrentam problemas semelhantes, como escassez de recursos e o poder político de atores do sistema de ensino superior e fora dele. Cinco dilemas se apresentam aos países: 1 expansão, igualdade de acesso e diversificação das matrículas, taxas de participação, o número e os tipos de instituições; 2 limitações financeiras; 3 regulação do ensino superior privado; 4 como fazer com que as instituições de ensino superior prestem mais contas a seus alunos, funcionários e à sociedade como um todo; e 5 qualidade e relevância social da aprendizagem e pesquisa em instituições de ensino superior. Utilizando dados e evidências das pesquisas mais recentes, o artigo mostra respostas comuns, com algumas exceções em cada caso: diversificação institucional; políticas de ação afirmativa; crescimento das matrículas nas ciências sociais, humanidades, profissões sociais e Educação; pouco sucesso nas políticas de internacionalização.
T Cell Receptor Vβ Staining Identifies the Malignant Clone in Adult T cell Leukemia and Reveals Killing of Leukemia Cells by Autologous CD8+ T cells.

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Aileen G Rowan

2016-11-01

Full Text Available There is growing evidence that CD8+ cytotoxic T lymphocyte (CTL responses can contribute to long-term remission of many malignancies. The etiological agent of adult T-cell leukemia/lymphoma (ATL, human T lymphotropic virus type-1 (HTLV-1, contains highly immunogenic CTL epitopes, but ATL patients typically have low frequencies of cytokine-producing HTLV-1-specific CD8+ cells in the circulation. It remains unclear whether patients with ATL possess CTLs that can kill the malignant HTLV-1 infected clone. Here we used flow cytometric staining of TCRVβ and cell adhesion molecule-1 (CADM1 to identify monoclonal populations of HTLV-1-infected T cells in the peripheral blood of patients with ATL. Thus, we quantified the rate of CD8+-mediated killing of the putative malignant clone in ex vivo blood samples. We observed that CD8+ cells from ATL patients were unable to lyse autologous ATL clones when tested directly ex vivo. However, short in vitro culture restored the ability of CD8+ cells to kill ex vivo ATL clones in some donors. The capacity of CD8+ cells to lyse HTLV-1 infected cells which expressed the viral sense strand gene products was significantly enhanced after in vitro culture, and donors with an ATL clone that expressed the HTLV-1 Tax gene were most likely to make a detectable lytic CD8+ response to the ATL cells. We conclude that some patients with ATL possess functional tumour-specific CTLs which could be exploited to contribute to control of the disease.
Widening of mediastinum with persistent left superior Vena cava - CT diagnosis

International Nuclear Information System (INIS)

Neuwirth, J.; Kolar, J.

1992-01-01

Described in this paper are radiographic findings recorded from a case of persistent left superior vena cava which grew manifest by widening of the left contour of the upper mediastinal region. Contrast-enhanced computed tomography (CT) was undertaken to clear up suspicion of mediastinal tumour and revealed double superior vena cava. The diagnosis was then confirmed by digital subtraction venography. (orig.) [de
Sensory neuropathy with bone destruction due to a mutation in the membrane-shaping atlastin GTPase 3.

Science.gov (United States)

Kornak, Uwe; Mademan, Inès; Schinke, Marte; Voigt, Martin; Krawitz, Peter; Hecht, Jochen; Barvencik, Florian; Schinke, Thorsten; Gießelmann, Sebastian; Beil, F Timo; Pou-Serradell, Adolf; Vílchez, Juan J; Beetz, Christian; Deconinck, Tine; Timmerman, Vincent; Kaether, Christoph; De Jonghe, Peter; Hübner, Christian A; Gal, Andreas; Amling, Michael; Mundlos, Stefan; Baets, Jonathan; Kurth, Ingo

2014-03-01

Many neurodegenerative disorders present with sensory loss. In the group of hereditary sensory and autonomic neuropathies loss of nociception is one of the disease hallmarks. To determine underlying factors of sensory neurodegeneration we performed whole-exome sequencing in affected individuals with the disorder. In a family with sensory neuropathy with loss of pain perception and destruction of the pedal skeleton we report a missense mutation in a highly conserved amino acid residue of atlastin GTPase 3 (ATL3), an endoplasmic reticulum-shaping GTPase. The same mutation (p.Tyr192Cys) was identified in a second family with similar clinical outcome by screening a large cohort of 115 patients with hereditary sensory and autonomic neuropathies. Both families show an autosomal dominant pattern of inheritance and the mutation segregates with complete penetrance. ATL3 is a paralogue of ATL1, a membrane curvature-generating molecule that is involved in spastic paraplegia and hereditary sensory neuropathy. ATL3 proteins are enriched in three-way junctions, branch points of the endoplasmic reticulum that connect membranous tubules to a continuous network. Mutant ATL3 p.Tyr192Cys fails to localize to branch points, but instead disrupts the structure of the tubular endoplasmic reticulum, suggesting that the mutation exerts a dominant-negative effect. Identification of ATL3 as novel disease-associated gene exemplifies that long-term sensory neuronal maintenance critically depends on the structural organisation of the endoplasmic reticulum. It emphasizes that alterations in membrane shaping-proteins are one of the major emerging pathways in axonal degeneration and suggests that this group of molecules should be considered in neuroprotective strategies.

WRN-targeted therapy using inhibitors NSC 19630 and NSC 617145 induce apoptosis in HTLV-1-transformed adult T-cell leukemia cells

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R. Moles

2016-11-01

Full Text Available Abstract Background Human T-cell leukemia virus type 1 (HTLV-1 infection is associated with adult T-cell leukemia/lymphoma (ATLL, a lymphoproliferative malignancy with a dismal prognosis and limited therapeutic options. Recent evidence shows that HTLV-1-transformed cells present defects in both DNA replication and DNA repair, suggesting that these cells might be particularly sensitive to treatment with a small helicase inhibitor. Because the “Werner syndrome ATP-dependent helicase” encoded by the WRN gene plays important roles in both cellular proliferation and DNA repair, we hypothesized that inhibition of WRN activity could be used as a new strategy to target ATLL cells. Methods Our analysis demonstrates an apoptotic effect induced by the WRN helicase inhibitor in HTLV-1-transformed cells in vitro and ATL-derived cell lines. Inhibition of cellular proliferation and induction of apoptosis were demonstrated with cell cycle analysis, XTT proliferation assay, clonogenic assay, annexin V staining, and measurement of mitochondrial transmembrane potential. Results Targeted inhibition of the WRN helicase induced cell cycle arrest and apoptosis in HTLV-1-transformed leukemia cells. Treatment with NSC 19630 (WRN inhibitor induces S-phase cell cycle arrest, disruption of the mitochondrial membrane potential, and decreased expression of anti-apoptotic factor Bcl-2. These events were associated with activation of caspase-3-dependent apoptosis in ATL cells. We identified some ATL cells, ATL-55T and LMY1, less sensitive to NSC 19630 but sensitive to another WRN inhibitor, NSC 617145. Conclusions WRN is essential for survival of ATL cells. Our studies suggest that targeting the WRN helicase with small inhibitors is a novel promising strategy to target HTLV-1-transformed ATL cells.
Axial compartmentation of descending and ascending thin limbs of Henle's loops.

Science.gov (United States)

Westrick, Kristen Y; Serack, Bradley; Dantzler, William H; Pannabecker, Thomas L

2013-02-01

In the inner medulla, radial organization of nephrons and blood vessels around collecting duct (CD) clusters leads to two lateral interstitial regions and preferential intersegmental fluid and solute flows. As the descending (DTLs) and ascending thin limbs (ATLs) pass through these regions, their transepithelial fluid and solute flows are influenced by variable transepithelial solute gradients and structure-to-structure interactions. The goal of this study was to quantify structure-to-structure interactions, so as to better understand compartmentation and flows of transepithelial water, NaCl, and urea and generation of the axial osmotic gradient. To accomplish this, we determined lateral distances of AQP1-positive and AQP1-negative DTLs and ATLs from their nearest CDs, so as to gauge interactions with intercluster and intracluster lateral regions and interactions with interstitial nodal spaces (INSs). DTLs express reduced AQP1 and low transepithelial water permeability along their deepest segments. Deep AQP1-null segments, prebend segments, and ATLs lie equally near to CDs. Prebend segments and ATLs abut CDs and INSs throughout much of their descent and ascent, respectively; however, the distal 30% of ATLs of the longest loops lie distant from CDs as they approach the outer medullary boundary and have minimal interaction with INSs. These relationships occur regardless of loop length. Finally, we show that ascending vasa recta separate intercluster AQP1-positive DTLs from descending vasa recta, thereby minimizing dilution of gradients that drive solute secretion. We hypothesize that DTLs and ATLs enter and exit CD clusters in an orchestrated fashion that is important for generation of the corticopapillary solute gradient by minimizing NaCl and urea loss.
Evaluation of the Superior Gluteal Nerve During Proximal Femoral Nailing

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Mehmet Sonmez

2017-05-01

Full Text Available Aim: The superior gluteal nerve may be compromised during hip surgery. We retrospectively evaluated the patients who underwent proximal femoral nailing for unstable trochanteric fractures in order to investigate the presence of superior gluteal nerve injury and its clinical findings. Material and Method: Twenty five patients (14 women, 11 men were included in the study who had femoral nailing between January 2004 and March 2010 at Hamidiye Sisli Etfal Training and Research Hospital Department of Orthopaedics. Two different types of nails which have similar designs and surgical techniques were used for fracture fixation. Patients who had a history of cerebrovascular disease, electromyography findings of polyneuropathy, or degenerative vertebral disease were excluded from the study. Patients were evaluated clinically and radiologically. Findings related to acute denervation in the gluteus medius muscle and motor unit action potential changes were accepted as signs of superior gluteal nerve injury. Results: Eight patients were using support during walking and three of these patients had positive Trendelenburg sign, but only one patient had acute denervation signs of the superior gluteal nerve. Discussion: Based on the present study the incidence of iatrogenic nerve injury is a rare complication of proximal femoral nailing. Elderly patients, regardless of whether they have nerve injury, may limp and need to use a walking support.
Superior pre-attentive auditory processing in musicians.

Science.gov (United States)

Koelsch, S; Schröger, E; Tervaniemi, M

1999-04-26

The present study focuses on influences of long-term experience on auditory processing, providing the first evidence for pre-attentively superior auditory processing in musicians. This was revealed by the brain's automatic change-detection response, which is reflected electrically as the mismatch negativity (MMN) and generated by the operation of sensoric (echoic) memory, the earliest cognitive memory system. Major chords and single tones were presented to both professional violinists and non-musicians under ignore and attend conditions. Slightly impure chords, presented among perfect major chords elicited a distinct MMN in professional musicians, but not in non-musicians. This demonstrates that compared to non-musicians, musicians are superior in pre-attentively extracting more information out of musically relevant stimuli. Since effects of long-term experience on pre-attentive auditory processing have so far been reported for language-specific phonemes only, results indicate that sensory memory mechanisms can be modulated by training on a more general level.
Laparoscopic management of superior mesentric artery syndrome: A case report and review of literature

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Makam Ramesh

2008-01-01

Full Text Available Superior mesentric artery syndrome is a rare cause of high small bowel obstruction, caused by compression of the transverse part of the duodenum in between the superior mesentric artery and aorta. Patients present with chronic abdominal pain, vomiting and weight loss. We report a case of superior mesenteric artery syndrome, managed laparoscopically with laparoscopic duodenojejunostomy.
A Inclusão de Pessoas com Necessidades Especiais no Ensino Superior

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Ronaldo Queiroz de OLIVEIRA

Full Text Available RESUMO: trata-se de uma revisão integrativa que objetivou analisar a produção científica sobre a educação inclusiva no ensino superior. Os dados foram coletados nas bases de dados Lilacs, Scielo, Cochrane, Medline e PubMed, entre os anos 2005 e 2014, utilizando-se os descritores controlados Special Education, Education Higher, Mainstreaming Education e Disabled Personse e os descritores não controlados Educação Especial, Educação Superior, Inclusão Educacional e Pessoas com Deficiência; Educación Superior, Propensíon Educación, Personas com Discapacidad. A amostra constituiu em 16 artigos. As publicações sobre a educação inclusiva no ensino superior têm sido tênues, demonstrando que ainda há muito a avançar nesse assunto. Conclui-se que o tema educação inclusiva é mais estudado em relação às crianças; as atenções dos estudiosos em relação a pessoas adultas com necessidades especiais envolvem mais a assistência em saúde e não a educação inclusiva no ensino superior.
Damage to the superior gluteal nerve after the Hardinge approach to the hip.

LENUS (Irish Health Repository)

Ramesh, M

2012-02-03

We studied prospectively 81 consecutive patients undergoing hip surgery using the Hardinge (1982) approach. The abductor muscles of the hip in these patients were assessed electrophysiologically and clinically by the modified Trendelenburg test. Power was measured using a force plate. We performed assessment at two weeks, and at three and nine months after operation. At two weeks we found that 19 patients (23%) showed evidence of damage to the superior gluteal nerve. By three months, five of these had recovered. The nine patients with complete denervation at three months showed no signs of recovery when reassessed at nine months. Persistent damage to the nerve was associated with a positive Trendelenburg test.
Outcome of patients with HTLV-1-associated adult T-cell leukemia/lymphoma after SCT: a retrospective study by the EBMT LWP.

Science.gov (United States)

Bazarbachi, A; Cwynarski, K; Boumendil, A; Finel, H; Fields, P; Raj, K; Nagler, A; Mohty, M; Sureda, A; Dreger, P; Hermine, O

2014-10-01

Adult T-cell leukemia/lymphoma (ATL) carries a dismal prognosis. Experience with allo-SCT for ATL appears encouraging but is limited to Japanese series. This retrospective analysis of the EBMT registry revealed 21 HTLV-I seropositive ATL including 7 acute and 12 lymphoma subtypes. Four patients received auto-SCT and rapidly died from ATL. Out of 17 allo-SCT (4 myeloablative, 13 reduced intensity), 6 are still alive (4 were in CR1 at SCT). Eleven patients died within 2 years, eight from relapse/progression and three from transplant toxicity. Six of seven informative patients who lived >12 months had chronic GVHD. Overall these results indicate that allo-SCT but not auto-SCT may salvage a subset of ATL patients, supporting the existence of graft vs ATL effect also in non-Japanese patients.
La coca en el intercambio mercante Atlántico-Mediterráneo

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Ortega Villoslada, Antonio

2008-06-01

Full Text Available One approaches the passage of the coca to the Mediterranean and its relevancy in the medieval navigation. Superiority determined by the rudder of sternpost, know generically by the sailors of the mediterranean basin as bayonés, that is to say, of the Gulf of Biscay, whose skippers will arrive regularly to Majorca.

Se aborda el paso de la coca al Mediterráneo y su relevancia en la náutica medieval. Primacía determinada por el timón de codaste, conocido genéricamente por los marinos de la cuenca mediterránea como bayonés, es decir, del Golfo de Vizcaya, cuyos patrones arribarán regularmente a Mallorca.
Gray matter changes in right superior temporal gyrus in criminal psychopaths. Evidence from voxel-based morphometry.

Science.gov (United States)

Müller, Jürgen L; Gänssbauer, Susanne; Sommer, Monika; Döhnel, Katrin; Weber, Tatjana; Schmidt-Wilcke, Tobias; Hajak, Göran

2008-08-30

"Psychopathy" according to the PCL-R describes a specific subgroup of antisocial personality disorder with a high risk for criminal relapses. Lesion and imaging studies point towards frontal or temporal brain regions connected with disturbed social behavior, antisocial personality disorder (APD) and psychopathy. Morphologically, some studies described a reduced prefrontal brain volume, whereas others reported on temporal lobe atrophy. To further investigate whether participants with psychopathy according to the Psychopathy Checklist-Revised Version (PCL-R) show abnormalities in brain structure, we used voxel-based morphometry (VBM) to investigate region-specific changes in gray matter in 17 forensic male inpatients with high PCL-R scores (PCL-R>28) and 17 male control subjects with low PCL-R scores (PCLright superior temporal gyrus. This is the first study to show that psychopathy is associated with a decrease in gray matter in both frontal and temporal brain regions, in particular in the right superior temporal gyrus, supporting the hypothesis that a disturbed frontotemporal network is critically involved in the pathogenesis of psychopathy.
Mechanism of the superior mechanical strength of nanometer-sized metal single crystals revealed

KAUST Repository

Afify, N. D.; Salem, H. G.; Yavari, A.; El Sayed, Tamer S.

2013-01-01

Clear understanding of the superior mechanical strength of nanometer-sized metal single crystals is required to derive advanced mechanical components retaining such superiority. Although high quality studies have been reported on nano
Information Superiority generated through proper application of Geoinformatics

Science.gov (United States)

Teichmann, F.

2012-04-01

Information Superiority generated through proper application of Geoinformatics Information management and especially geoscience information delivery is a very delicate task. If it is carried out successfully, geoscientific data will provide the main foundation of Information Superiority. However, improper implementation of geodata generation, assimilation, distribution or storage will not only waste valuable resources like manpower or money, but could also give rise to crucial deficiency in knowledge and might lead to potentially extremely harmful disasters or wrong decisions. Comprehensive Approach, Effect Based Operations and Network Enabled Capabilities are the current buzz terms in the security regime. However, they also apply to various interdisciplinary tasks like catastrophe relief missions, civil task operations or even in day to day business operations where geo-science data is used. Based on experience in the application of geoscience data for defence applications the following procedure or tool box for generating geodata should lead to the desired information superiority: 1. Understand and analyse the mission, the task and the environment for which the geodata is needed 2. Carry out a Information Exchange Requirement between the user or customer and the geodata provider 3. Implementation of current interoperability standards and a coherent metadata structure 4. Execute innovative data generation, data provision, data assimilation and data storage 5. Apply a cost-effective and reasonable data life cycle 6. Implement IT security by focusing of the three pillar concepts Integrity, Availability and Confidentiality of the critical data 7. Draft and execute a service level agreement or a memorandum of understanding between the involved parties 8. Execute a Continuous Improvement Cycle These ideas from the IT world should be transferred into the geoscience community and applied in a wide set of scenarios. A standardized approach of how to generate, provide
The Picture Superiority Effect and Biological Education.

Science.gov (United States)

Reid, D. J.

1984-01-01

Discusses learning behaviors where the "picture superiority effect" (PSE) seems to be most effective in biology education. Also considers research methodology and suggests a new research model which allows a more direct examination of the strategies learners use when matching up picture and text in efforts to "understand"…
Three-Dimensional Printed Prosthesis for Repair of Superior Canal Dehiscence.

Science.gov (United States)

Kozin, Elliott D; Remenschneider, Aaron K; Cheng, Song; Nakajima, Hideko Heidi; Lee, Daniel J

2015-10-01

Outcomes following repair of superior canal dehiscence (SCD) are variable, and surgery carries a risk of persistent or recurrent SCD symptoms, as well as a risk of hearing loss and vestibulopathy. Poor outcomes may occur from inadequate repair of the SCD or mechanical insult to the membranous labyrinth. Repair of SCD using a customized, fixed-length prosthesis may address current operative limitations and improve surgical outcomes. We aim to 3-dimensionally print customized prostheses to resurface or occlude bony SCD defects. Dehiscences were created along the arcuate eminence of superior semicircular canals in cadaveric temporal bones. Prostheses were designed and created using computed tomography and a 3-dimensional printer. The prostheses occupied the superior semicircular canal defect, reflected in postrepair computed tomography scans. This novel approach to SCD repair could have advantages over current techniques. Refinement of prosthesis design and materials will be important if this approach is translated into clinical use. © American Academy of Otolaryngology-Head and Neck Surgery Foundation 2015.
Superior cervical gangliectomy induces non-exudative age-related macular degeneration in mice

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Hernán H. Dieguez

2018-02-01

Full Text Available Non-exudative age-related macular degeneration, a prevalent cause of blindness, is a progressive and degenerative disease characterized by alterations in Bruch's membrane, retinal pigment epithelium, and photoreceptors exclusively localized in the macula. Although experimental murine models exist, the vast majority take a long time to develop retinal alterations and, in general, these alterations are ubiquitous, with many resulting from non-eye-specific genetic manipulations; additionally, most do not always reproduce the hallmarks of human age-related macular degeneration. Choroid vessels receive sympathetic innervation from the superior cervical ganglion, which, together with the parasympathetic system, regulates blood flow into the choroid. Choroid blood flow changes have been involved in age-related macular degeneration development and progression. At present, no experimental models take this factor into account. The aim of this work was to analyze the effect of superior cervical gangliectomy (also known as ganglionectomy on the choroid, Bruch's membrane, retinal pigment epithelium and retina. Adult male C57BL/6J mice underwent unilateral superior cervical gangliectomy and a contralateral sham procedure. Although superior cervical gangliectomy induced ubiquitous choroid and choriocapillaris changes, it induced Bruch's membrane thickening, loss of retinal pigment epithelium melanin content and retinoid isomerohydrolase, the appearance of drusen-like deposits, and retinal pigment epithelium and photoreceptor atrophy, exclusively localized in the temporal side. Moreover, superior cervical gangliectomy provoked a localized increase in retinal pigment epithelium and photoreceptor apoptosis, and a decline in photoreceptor electroretinographic function. Therefore, superior cervical gangliectomy recapitulated the main features of human non-exudative age-related macular degeneration, and could become a new experimental model of dry age
Subjective qualities of memories associated with the picture superiority effect in schizophrenia.

Science.gov (United States)

Huron, Caroline; Danion, Jean-Marie; Rizzo, Lydia; Killofer, Valérie; Damiens, Annabelle

2003-02-01

Patients with schizophrenia (n = 24) matched with 24 normal subjects were presented with both words and pictures. On a recognition memory task, they were asked to give remember, know, or guess responses to items that were recognized on the basis of conscious recollection, familiarity, or guessing, respectively. Compared with normal subjects, patients exhibited a lower picture superiority effect selectively related to remember responses. Unlike normal subjects, they did not exhibit any word superiority effect in relation to guess responses; this explains why the overall picture superiority effect appeared to be intact. These results emphasize the need to take into account the subjective states of awareness when analyzing memory impairments in schizophrenia.
Persistency of the left superior caval vein. Diagnosis and its prenatal importance

International Nuclear Information System (INIS)

Jaramillo, Juan F; Estrada Perea, Mercy H; Muriel, Yina Y

2010-01-01

Certain heart fetal planes must be realized during a routine obstetric ultrasound in order to identify a group of anomalies such as the persistency of the left superior caval vein. When an isolated left superior venal vein is identified without any other anomaly of the fetal heart, it does not have any perinatal repercussion. Its importance lies in the fact that a considerable number of these cases are associated with a high incidence of congenital heart diseases and anatomic and chromosomal abnormalities. This article reports nine cases of persistency of the left superior caval vein as well as the associated heart abnormalities and the extra-cardiac alterations found.
La macdonalización de la educación superior

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Enrique Javier Díez Gutiérrez

2011-01-01

Full Text Available l neoliberalismo se ha convertido en el “telón de fondo” de los ajustes de la política en la educación superior a nivel mundial, que no se limitan ya al recorte en la asignación de recursos o a su privatización, sino que afectan básicamente a los núcleos centrales del ideario educativo y a las políticas pedagógicas. Los conflictos que se dirimen en la educación superior no son más que una parte de la crisis más general de la política y de la ciudadanía en el capitalismo global. Con el argumento de que la educación superior debe atender a las demandas sociales, se hace una interpretación claramente reduccionista de qué sea la sociedad, poniendo a la universidad al exclusivo servicio de las empresas y se centra la formación en preparar exclusivamente el tipo de trabajadores y trabajadoras solicitados por éstas. Las inversiones en la educación superior y los currículos deben ser pensados de acuerdo con las exigencias del mercado y como preparación al mercado de trabajo. El papel público de la educación superior como campo de entrenamiento para la democracia y para la ciudadanía democrática se ha pasado a considerar como un despilfarro del gasto público, siendo reemplazado por el punto de vista que la empresa privada tiene de la función de la enseñanza superior: un campo de entrenamiento para atender las necesidades de las empresas. La persona trabajadora “flexible” y “polivalente” constituye así la referencia del nuevo ideal pedagógico. El problema de fondo es el marco global en el que se inscribe y la filosofía que orienta esta reforma y que parece desplegar un funcionamiento mercantil de la educación en Europa. Porque esta reforma no parece tratar de poner la universidad al servicio de la sociedad para hacerla más justa, más sabia, más universal, más equitativa, más comprensiva, sino de adaptar la universidad al mercado, una parte muy concreta de la sociedad, cuyas finalidades no se orientan
Usos políticos del Santo Oficio portugués en el Atlántico (Brasil y África Occidental. El período filipino

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Guilherme Feitler, Bruno

2007-06-01

Full Text Available This paper studies the role that the Portuguese Inquisition should have played according to the King’s atlantic policy. This is revealed by the analysis of three diferent situations: the intent of creating an inquisitional court in Bahia, the use of the Holy Office in the repression of smuggling in Guinea, both in the 1620’s, and in the intent of establishing a Court in Rio de Janeiro in 1639, in order to stop the damages caused by the paulistas in the Missions of the River Plate.En este trabajo nos centramos en el papel que el rey pretendió dar a la Inquisición portuguesa en su política atlántica, estudiando sobre todo tres momentos reveladores: el intento de crear un tribunal inquisitorial en Bahía, la utilización del Santo Oficio en la represión del contrabando en Guinea, ambos en los años 1620, y en la tentativa de instaurar un tribunal en Río de Janeiro en 1639, con el objetivo de frenar los daños causados por los paulistas en las misiones del río de la Plata.
Don't words come easy? A psychophysical exploration of word superiority

DEFF Research Database (Denmark)

Starrfelt, Randi; Petersen, Anders; Vangkilde, Signe Allerup

2013-01-01

Words are made of letters, and yet sometimes it is easier to identify a word than a single letter. This word superiority effect (WSE) has been observed when written stimuli are presented very briefly or degraded by visual noise. We compare performance with letters and words in three experiments, ...... and visual short term memory capacity. So, even if single words come easy, there is a limit to the word superiority effect....

As áreas naturais protegidas e a responsabilidade social e ambiental das empresas: o caso do Mosaico da Mata Atlântica Central Fluminense e do Comperj

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Gian Mario Giuliani

2007-01-01

Full Text Available The article thinks about the pressures that defy the “protected areas” in order to sustain their politics of conservation in the case that the territory had been chose for setting an enormous industrial complex. We refer to the construction of the Complexo Petroquímico do Rio de Janeiro (Comperj by the Petrobras Company at a very short distance from the Mosaico da Mata Atlântica Central Fluminense - MMACF (a whole of 22 protected areas and, particularly, from the Apa de Guapimirím,that is the last original haven of the mangrove system of the Guanabara Bay. It is reasonable to preview that the protected areas will suffer strong environmental and social impacts. We wont to make evident that the social and environmental responsibility flaunted by Petrobras is not preventive, in the sense of planning the actions anticipating their consequences and conceiving its project in order to avoid risks. Its social and environmental responsibility bases on attitudes that only aim at the containment of the principal predicted problems and at the compensation for the caused damages.
Concept typicality responses in the semantic memory network.

Science.gov (United States)

Santi, Andrea; Raposo, Ana; Frade, Sofia; Marques, J Frederico

2016-12-01

For decades concept typicality has been recognized as critical to structuring conceptual knowledge, but only recently has typicality been applied in better understanding the processes engaged by the neurological network underlying semantic memory. This previous work has focused on one region within the network - the Anterior Temporal Lobe (ATL). The ATL responds negatively to concept typicality (i.e., the more atypical the item, the greater the activation in the ATL). To better understand the role of typicality in the entire network, we ran an fMRI study using a category verification task in which concept typicality was manipulated parametrically. We argue that typicality is relevant to both amodal feature integration centers as well as category-specific regions. Both the Inferior Frontal Gyrus (IFG) and ATL demonstrated a negative correlation with typicality, whereas inferior parietal regions showed positive effects. We interpret this in light of functional theories of these regions. Interactions between category and typicality were not observed in regions classically recognized as category-specific, thus, providing an argument against category specific regions, at least with fMRI. Copyright © 2016 Elsevier Ltd. All rights reserved.
The Sport Expert's Attention Superiority on Skill-related Scene Dynamic by the Activation of left Medial Frontal Gyrus: An ERP and LORETA Study.

Science.gov (United States)

He, Mengyang; Qi, Changzhu; Lu, Yang; Song, Amanda; Hayat, Saba Z; Xu, Xia

2018-05-21

Extensive studies have shown that a sports expert is superior to a sports novice in visually perceptual-cognitive processes of sports scene information, however the attentional and neural basis of it has not been thoroughly explored. The present study examined whether a sport expert has the attentional superiority on scene information relevant to his/her sport skill, and explored what factor drives this superiority. To address this problem, EEGs were recorded as participants passively viewed sport scenes (tennis vs. non-tennis) and negative emotional faces in the context of a visual attention task, where the pictures of sport scenes or of negative emotional faces randomly followed the pictures with overlapping sport scenes and negative emotional faces. ERP results showed that for experts, the evoked potential of attentional competition elicited by the overlap of tennis scene was significantly larger than that evoked by the overlap of non-tennis scene, while this effect was absent for novices. The LORETA showed that the experts' left medial frontal gyrus (MFG) cortex was significantly more active as compared to the right MFG when processing the overlap of tennis scene, but the lateralization effect was not significant in novices. Those results indicate that experts have attentional superiority on skill-related scene information, despite intruding the scene through negative emotional faces that are prone to cause negativity bias toward their visual field as a strong distractor. This superiority is actuated by the activation of left MFG cortex and probably due to self-reference. Copyright © 2018 The Authors. Published by Elsevier Ltd.. All rights reserved.
Redes de colaboración en Educación Superior

OpenAIRE

Solano Fernández, Isabel Mª

2012-01-01

Redes de colaboración para la Educación Superior. Se analiza el modelo pedagógico constructivista social, y dentro de este el método colaborativo. Posteriormente analiza las posibilidades de las redes, redes sociales y medios sociales, para la Educación. Presentación realizada para realizar el taller "redes de colaboración en Educación Superior" en el Seminario de innovación docente Organizado por el Centro de Desarrolo Docente (CDDOC) de la Universidad Católica de Chile.
Ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock: Case report.

Science.gov (United States)

Corbacioglu, Kerem Seref; Aksel, Gokhan; Yildiz, Altan

2016-03-01

Pseudoaneurysm of the superior gluteal artery (SGA) is very rare and the most common causes are blunt or penetrating pelvic traumas. Although pseudoaneurysm can be asymptomatic at the time of initial trauma, it can be symptomatic weeks, months, even years after initial trauma. We present a case of a ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock twenty days after a bomb injury in the Syria civil war. In addition, we review the anatomy of the SGA, clinical presentation and pitfalls of pseudoaneurysm, and imaging and treatment options.
THE GENERAL CONTEXTUAL FRAME FOR PLACING SUPERIOR STUDIES GRADUATES IN THE WORK MARKET

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FELICIA ANDRIONI

2013-12-01

Full Text Available Integration in a workplace is an interaction rapport between the individual and the environment. The process of professional integration is strongly linked to the professional aspiration, individual expectations, motivation, and work satisfaction. Placing young graduates of superior studies on the labour market is a challenge for contemporary society. Identifying a suitable work place as well as the certainty of the attained work place are very important elements for young superior studies graduates in the current context of economic crysis. The difficulties in getting a job for superior studies graduates are most frequently associated with lacks in what regards the speciality practical skills and generally, insertion in the work market is achived by getting a position in fields that are related or even different from the speciality field. In an extremely unstable social and economic context, people’s ability to quickly adapt to the requirements of the labour market is fundamental. In this respect, education and professional training have an important role, contributing to the update of knowledge, skills and qualifications of superior studies graduates or future superior studies graduates, eventually allowing them to stay active, flexible, adapted to the situations and requirements of the labour market.
LA EDUCACIÓN SUPERIOR CUBANA: LOGROS Y PERSPECTIVAS

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Acela Cantero Zayas

2004-01-01

Full Text Available El impetuoso desarrollo de la ciencia y la técnica contemporáneo en general y muy específicamente en la realidad cubana, está dirigido a satisfacer las necesidades creciente de nuestra sociedad, lo que conlleva a un continuo perfeccionamiento de todo el sistema educativo en correspondencia con las exigencias, demandas y necesidades de nuestro pueblo. En tal sentido, para comprender los resultados que exhibe la Educación cubana y dentro de ella la Educación Superior, se precisa de toda una reflexión histórica, como soporte lógico y metodológico del hecho educativo cubano. En la actualidad, el mayor impacto de nuestra Educación Superior, desde los puntos de vista social, político, económico y en especial formativo, lo constituye, el diseño e implementación del modelo de Universalización, el cual tiene como objetivo supremo la extensión de la Universidad a los distintos municipios del país, con la finalidad de irradiar cultura y saber, que son las únicas modalidades de garantizar un hombre libre y de hecho una sociedad independiente. En el presente trabajo se muestra una panorámica de la Educación Superior en Cuba, partiendo del elemento histórico hasta la contemporaneidad y en ésta, los nuevos retos impuestos por el contexto socio-político a escala mundial.
The picture superiority effect in a cross-modality recognition task.

Science.gov (United States)

Stenbert, G; Radeborg, K; Hedman, L R

1995-07-01

Words and pictures were studied and recognition tests given in which each studied object was to be recognized in both word and picture format. The main dependent variable was the latency of the recognition decision. The purpose was to investigate the effects of study modality (word or picture), of congruence between study and test modalities, and of priming resulting from repeated testing. Experiments 1 and 2 used the same basic design, but the latter also varied retention interval. Experiment 3 added a manipulation of instructions to name studied objects, and Experiment 4 deviated from the others by presenting both picture and word referring to the same object together for study. The results showed that congruence between study and test modalities consistently facilitated recognition. Furthermore, items studied as pictures were more rapidly recognized than were items studied as words. With repeated testing, the second instance was affected by its predecessor, but the facilitating effect of picture-to-word priming exceeded that of word-to-picture priming. The finds suggest a two- stage recognition process, in which the first is based on perceptual familiarity and the second uses semantic links for a retrieval search. Common-code theories that grant privileged access to the semantic code for pictures or, alternatively, dual-code theories that assume mnemonic superiority for the image code are supported by the findings. Explanations of the picture superiority effect as resulting from dual encoding of pictures are not supported by the data.
Visual search for emotional expressions: Effect of stimulus set on anger and happiness superiority.

Science.gov (United States)

Savage, Ruth A; Becker, Stefanie I; Lipp, Ottmar V

2016-01-01

Prior reports of preferential detection of emotional expressions in visual search have yielded inconsistent results, even for face stimuli that avoid obvious expression-related perceptual confounds. The current study investigated inconsistent reports of anger and happiness superiority effects using face stimuli drawn from the same database. Experiment 1 excluded procedural differences as a potential factor, replicating a happiness superiority effect in a procedure that previously yielded an anger superiority effect. Experiments 2a and 2b confirmed that image colour or poser gender did not account for prior inconsistent findings. Experiments 3a and 3b identified stimulus set as the critical variable, revealing happiness or anger superiority effects for two partially overlapping sets of face stimuli. The current results highlight the critical role of stimulus selection for the observation of happiness or anger superiority effects in visual search even for face stimuli that avoid obvious expression related perceptual confounds and are drawn from a single database.
An MRI Study of Superior Temporal Gyrus Volume in Women With Schizotypal Personality Disorder

OpenAIRE

Dickey, Chandlee C.; McCarley, Robert William; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Demeo, Susan; Frumin, Melissa; Shenton, Martha Elizabeth

2003-01-01

Objective: An abnormal superior temporal gyrus has figured prominently in schizophrenia research, and left superior temporal gyrus volume has been shown to be smaller in male subjects with schizotypal personality disorder. This is the first structural magnetic resonance imaging study to examine a group of female subjects with schizotypal personality disorder. Method: The superior temporal gyrus was drawn on coronal images acquired from female subjects recruited from the community (schizotypal...
Recognition Memory and Source Memory in Autism Spectrum Disorder: A Study of the Intention Superiority and Enactment Effects

Science.gov (United States)

Grainger, Catherine; Williams, David M.; Lind, Sophie E.

2017-01-01

It is well established that neurotypical individuals generally show better memory for actions they have performed than actions they have observed others perform or merely read about, a so-called "enactment effect." Strikingly, research has also shown that neurotypical individuals demonstrate superior memory for actions they…
Superior cervical gangliectomy induces non-exudative age-related macular degeneration in mice.

Science.gov (United States)

Dieguez, Hernán H; Romeo, Horacio E; González Fleitas, María F; Aranda, Marcos L; Milne, Georgia A; Rosenstein, Ruth E; Dorfman, Damián

2018-02-07

Non-exudative age-related macular degeneration, a prevalent cause of blindness, is a progressive and degenerative disease characterized by alterations in Bruch's membrane, retinal pigment epithelium, and photoreceptors exclusively localized in the macula. Although experimental murine models exist, the vast majority take a long time to develop retinal alterations and, in general, these alterations are ubiquitous, with many resulting from non-eye-specific genetic manipulations; additionally, most do not always reproduce the hallmarks of human age-related macular degeneration. Choroid vessels receive sympathetic innervation from the superior cervical ganglion, which, together with the parasympathetic system, regulates blood flow into the choroid. Choroid blood flow changes have been involved in age-related macular degeneration development and progression. At present, no experimental models take this factor into account. The aim of this work was to analyze the effect of superior cervical gangliectomy (also known as ganglionectomy) on the choroid, Bruch's membrane, retinal pigment epithelium and retina. Adult male C57BL/6J mice underwent unilateral superior cervical gangliectomy and a contralateral sham procedure. Although superior cervical gangliectomy induced ubiquitous choroid and choriocapillaris changes, it induced Bruch's membrane thickening, loss of retinal pigment epithelium melanin content and retinoid isomerohydrolase, the appearance of drusen-like deposits, and retinal pigment epithelium and photoreceptor atrophy, exclusively localized in the temporal side. Moreover, superior cervical gangliectomy provoked a localized increase in retinal pigment epithelium and photoreceptor apoptosis, and a decline in photoreceptor electroretinographic function. Therefore, superior cervical gangliectomy recapitulated the main features of human non-exudative age-related macular degeneration, and could become a new experimental model of dry age-related macular degeneration, and
Facile synthesis of carbon dots with superior sensing ability

Science.gov (United States)

Jin, Lin; Li, Jingguo; Liu, Liyun; Wang, Zhenling; Zhang, Xingcai

2018-04-01

Carbon dots (CDs) have various applications in biomedical and environmental field, such as bio-imaging, bio-sensing and heavy metal detection. In this study, a novel class of CDs were synthesized using a one-step hydrothermal method. The fabricated CDs displayed stable photoluminescence, good water solubility, and photo stability. Moreover, the functional groups (carboxylic acid moieties and hydroxyls) on the surface of the obtained CDs enable it with superior sensing ability (e.g., very low detectable concentration for Pb2+: 5 nmol/L). With superior detection sensitivity, excellent fluorescent properties and facile fabrication method, the as-obtained CDs can find practical applications as cost-effective and sensitive chemo-sensors in water and food safety field.
Superior cold recycling : The score project

OpenAIRE

LESUEUR, D; POTTI, JJ; SOUTHWELL, C; WALTER, J; CRUZ, M; DELFOSSE, F; ECKMANN, B; FIEDLER, J; RACEK, I; SIMONSSON, B; PLACIN, F; SERRANO, J; RUIZ, A; KALAAJI, A; ATTANE, P

2004-01-01

In order to develop Environmentally Friendly Construction Technologies (EFCT) and as part of the 5th Framework Program of Research and Development, the European Community has decided to finance a research project on cold recycling, entitled SCORE "Superior COld REcycling based on benefits of bituminous microemulsions and foamed bitumen. A EFCT system for the rehabilitation and the maintenance of roads". This research project gathers organizations from all over Europe, from industrial partners...
Generando vinculación académica en el IPN entre el nivel medio superior y superior en unidades de aprendizaje de básicas

OpenAIRE

Gil Balderrama, Sara Beatríz; Pérez Bussó, Carlos Eduardo

2016-01-01

El Instituto Politécnico Nacional (IPN) en el estado de Guanajuato presenta, como muchas instituciones educativas un enorme filtro de abandono y deserción en los primeros semestres del nivel superior. En este trabajo, presentamos una experiencia docente en el CECyT 174, una escuela del nivel medio superior del I.P.N. en la ciudad de León, Guanajuato, México. Este reporte es el trabajo desarrollado por los autores intentando que la labor académica contribuya a reducir la brecha existente entre...
Superior creep strength of a nickel-based superalloy produced by selective laser melting

Energy Technology Data Exchange (ETDEWEB)

Pröbstle, M., E-mail: martin.proebstle@fau.de [Department of Materials Science & Engineering Institute I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 5, D-91058 Erlangen (Germany); Neumeier, S.; Hopfenmüller, J.; Freund, L.P. [Department of Materials Science & Engineering Institute I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 5, D-91058 Erlangen (Germany); Niendorf, T. [Institut für Werkstofftechnik (Materials Engineering), Universität Kassel, Mönchebergstr. 3, D-34125 Kassel (Germany); Schwarze, D. [SLM Solutions GmbH, Roggenhorster Straße 9c, D-23556 Lübeck (Germany); Göken, M. [Department of Materials Science & Engineering Institute I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 5, D-91058 Erlangen (Germany)

2016-09-30

The creep properties of a polycrystalline nickel-based superalloy produced via selective laser melting were investigated in this study. All heat treatment conditions of the additively manufactured material show superior creep strength compared to conventional cast and wrought material. The process leads to a microstructure with fine subgrains. In comparison to conventional wrought material no Niobium rich δ phase is necessary to control the grain size and thus more Niobium is available for precipitation hardening and solid solution strengthening resulting in improved creep strength.
USAF Warrior Studies: Air Superiority in World War 2 and Korea,

Science.gov (United States)

1983-01-01

cal aiMr. and lO\\\\ dild air s.uperiority. lit in. in the latle 1940s!? Did our- emphasis onl str~ateiC’c and nuclear air power do us harm .’ Did It...cmim l t~ ilc ItI-, t.- tha \\i,’IC t I I.t. 1 4 1, h AIR SUPERIORITY to as operational masturbation . I have always felt the B-52s were to a large
Superiorized algorithm for reconstruction of CT images from sparse-view and limited-angle polyenergetic data

Science.gov (United States)

Humphries, T.; Winn, J.; Faridani, A.

2017-08-01

Recent work in CT image reconstruction has seen increasing interest in the use of total variation (TV) and related penalties to regularize problems involving reconstruction from undersampled or incomplete data. Superiorization is a recently proposed heuristic which provides an automatic procedure to ‘superiorize’ an iterative image reconstruction algorithm with respect to a chosen objective function, such as TV. Under certain conditions, the superiorized algorithm is guaranteed to find a solution that is as satisfactory as any found by the original algorithm with respect to satisfying the constraints of the problem; this solution is also expected to be superior with respect to the chosen objective. Most work on superiorization has used reconstruction algorithms which assume a linear measurement model, which in the case of CT corresponds to data generated from a monoenergetic x-ray beam. Many CT systems generate x-rays from a polyenergetic spectrum, however, in which the measured data represent an integral of object attenuation over all energies in the spectrum. This inconsistency with the linear model produces the well-known beam hardening artifacts, which impair analysis of CT images. In this work we superiorize an iterative algorithm for reconstruction from polyenergetic data, using both TV and an anisotropic TV (ATV) penalty. We apply the superiorized algorithm in numerical phantom experiments modeling both sparse-view and limited-angle scenarios. In our experiments, the superiorized algorithm successfully finds solutions which are as constraints-compatible as those found by the original algorithm, with significantly reduced TV and ATV values. The superiorized algorithm thus produces images with greatly reduced sparse-view and limited angle artifacts, which are also largely free of the beam hardening artifacts that would be present if a superiorized version of a monoenergetic algorithm were used.
Spontaneous Activity Associated with Delusions of Schizophrenia in the Left Medial Superior Frontal Gyrus: A Resting-State fMRI Study.

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Bin Gao

Full Text Available Delusions of schizophrenia have been found to be associated with alterations of some brain regions in structure and task-induced activation. However, the relationship between spontaneously occurring symptoms and spontaneous brain activity remains unclear. In the current study, 14 schizophrenic patients with delusions and 14 healthy controls underwent a resting-state functional magnetic resonance imaging (RS-fMRI scan. Patients with delusions of schizophrenia patients were rated with Positive and Negative Syndrome Scale (PANSS and Characteristics of Delusional Rating Scale (CDRS. Regional homogeneity (ReHo was calculated to measure the local synchronization of the spontaneous activity in a voxel-wise way. A two-sample t-test showed that ReHo of the right anterior cingulate gyrus and left medial superior frontal gyrus were higher in patients, and ReHo of the left superior occipital gyrus was lower, compared to healthy controls. Further, among patients, correlation analysis showed a significant difference between delusion scores of CRDS and ReHo of brain regions. ReHo of the left medial superior frontal gyrus was negatively correlated with patients' CDRS scores but not with delusional PANSS scores. These results suggested that altered local synchronization of spontaneous brain activity may be related to the pathophysiology of delusion in schizophrenia.
Spontaneous Activity Associated with Delusions of Schizophrenia in the Left Medial Superior Frontal Gyrus: A Resting-State fMRI Study.

Science.gov (United States)

Gao, Bin; Wang, Yiquan; Liu, Weibo; Chen, Zhiyu; Zhou, Heshan; Yang, Jinyu; Cohen, Zachary; Zhu, Yihong; Zang, Yufeng

2015-01-01

Delusions of schizophrenia have been found to be associated with alterations of some brain regions in structure and task-induced activation. However, the relationship between spontaneously occurring symptoms and spontaneous brain activity remains unclear. In the current study, 14 schizophrenic patients with delusions and 14 healthy controls underwent a resting-state functional magnetic resonance imaging (RS-fMRI) scan. Patients with delusions of schizophrenia patients were rated with Positive and Negative Syndrome Scale (PANSS) and Characteristics of Delusional Rating Scale (CDRS). Regional homogeneity (ReHo) was calculated to measure the local synchronization of the spontaneous activity in a voxel-wise way. A two-sample t-test showed that ReHo of the right anterior cingulate gyrus and left medial superior frontal gyrus were higher in patients, and ReHo of the left superior occipital gyrus was lower, compared to healthy controls. Further, among patients, correlation analysis showed a significant difference between delusion scores of CRDS and ReHo of brain regions. ReHo of the left medial superior frontal gyrus was negatively correlated with patients' CDRS scores but not with delusional PANSS scores. These results suggested that altered local synchronization of spontaneous brain activity may be related to the pathophysiology of delusion in schizophrenia.

Estado Y Prospectiva De Las Posibilidades De Adaptación Al Cambio Climático En La Región Atlántica Colombiana

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Leonardo Fabio P

2014-01-01

El artículo plantea el abordaje conceptual sobre la adaptación al cambio climático en los contextos internacional, regional y local; se analizan e interpretan las acciones realizadas en la región Costa Atlántica, para determinar la capacidad de adaptación que permita afrontar las situaciones derivadas de dicho cambio y se indagan las posibilidades en materia de adaptación. Abstract Climate change is a reality facing humanity, a subject of the present and the future, is not a prediction, it is perhaps the greatest challenge that mankind is facing in its efforts to continue living in this world, without distinction between countries poor nor rich, nor between social classes. Given this reality, the most effective adaptation to counteract the effects of this phenomenon, which requires the development of institutional and social capabilities that enable joint efforts of government, as social and economic actors, arises. The article presents the conceptual approach on adaptation to climate change at the international, regional and local contexts; analyzed and interpreted the actions in the Atlantic Coast region, to determine the adaptability which to cope with situations arising from the change and investigate possibilities for adaptation.
Surgical Treatment of A Dissecting Aneurysm of the Superior Cerebellar Artery: Case Report

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Stefanescu Florin

2014-10-01

Full Text Available Dissecting aneurysm located in the peripheral region of the superior cerebellar artery is very rare. There is little experience regarding their surgical or endovascular treatment. We present the case of a peripheral dissecting superior cerebellar artery aneurysm treated by surgical clipping.
Unbalanced inflammatory reaction could increase tissue destruction and worsen skin infectious diseases - a comparative study of leishmaniasis and sporotrichosis.

Science.gov (United States)

Morgado, F N; de Carvalho, L M V; Leite-Silva, J; Seba, A J; Pimentel, M I F; Fagundes, A; Madeira, M F; Lyra, M R; Oliveira, M M; Schubach, A O; Conceição-Silva, F

2018-02-13

The clinical presentations of skin diseases produced by different pathogens, as American tegumentary leishmaniasis (ATL) and sporotrichosis can be similar and possibly influenced by the skin immune system (SIS). The aim of the study was to understand the underlying mechanisms of skin inflammation produced by different pathogens. We used immunohistochemistry to analyze 96 patients: a- localized cutaneous leishmaniasis (LCL-ATL); b- sporotrichoid cutaneous leishmaniasis (SCL-ATL); c-lymphocutaneous (LC-SP); d- fixed (F-SP) sporotrichosis. LCL-ATL and SCL-ATL had a significantly higher percentage of CD8, FasL and NOS2 than sporotrichosis. In contrast, LC-SP had a substantially higher percentage of CD4, BCl2 and neutrophils than ATL lesions. These results indicated some differences in the profile of the in situ immune response suggesting that SIS is a complex, adaptable system capable of different responses to intracellular or extracellular pathogens. However, regardless of the etiological agents, the inflammatory reaction and clinical manifestations can be similar. SCL-ATL and LC-SP presented similarities in both clinical presentation and in situ inflammatory profile (CD3, CD22, neutrophils, macrophages). The clinical presentation of ATL and sporotrichosis could be explained by a combination of factors both of the host SIS and the etiological agent. The unbalanced host parasite relationship could result in atypical manifestations of skin disease.
Anti-ATLA (antibody to adult T-cell leukemia-lymphoma virus-associated antigen)-negative adult T-cell leukemia-lymphoma.

Science.gov (United States)

Shimoyama, M; Minato, K; Tobinai, K; Nagai, M; Setoya, T; Watanabe, S; Hoshino, H; Miwa, M; Nagoshi, H; Ichiki, N; Fukushima, N; Sugiura, K; Funaki, N

1983-01-01

Five cases of adult T-cell leukemia-lymphoma (ATL) having typical clinicohematologic and morphologic features but negative for anti-ATLA [antibody to ATL virus (ATLV)-associated antigen (ATLA)] are presented. Some differences in immunologic, epidemiologic, and serologic data between anti-ATLA-positive and -negative ATLs are also described. Expression of ATLA in early primary cultured leukemic cells was found to be negative in three patients tested (Cases 1, 2 and 4), however, a long-term cultured cell line, ATL-6A, derived from peripheral blood leukemia cells from Case 1, was found to express ATLA. Mother of Case 1 and a daughter of Case 2 were anti-ATLA negative. These results indicate that ATLV was involved in certain anti-ATLA-negative ATL patients, at least in Case 1, and that the patient had no detectable immune response against ATLV and ATLA. However, in other cases in which no ATLA reactivity of serum and no ATLA expression in cultured leukemic cells were observed, another possibility such as activation of an unknown cellular oncogene specific for ATL without ATLV involvement may be considered. In order to prove these possibilities definitely, it is necessary to elucidate whether or not proviral DNA of ATLV is integrated into chromosomal DNA of ATL cells and to find a cellular oncogene specific for ATL in the future.
Superior accuracy of model-based radiostereometric analysis for measurement of polyethylene wear

DEFF Research Database (Denmark)

Stilling, M; Kold, S; de Raedt, S

2012-01-01

The accuracy and precision of two new methods of model-based radiostereometric analysis (RSA) were hypothesised to be superior to a plain radiograph method in the assessment of polyethylene (PE) wear.......The accuracy and precision of two new methods of model-based radiostereometric analysis (RSA) were hypothesised to be superior to a plain radiograph method in the assessment of polyethylene (PE) wear....
Eficacia educativa: avances de un modelo para la educación superior

Directory of Open Access Journals (Sweden)

Rafael Hernández-González

2008-01-01

Full Text Available Se analizó un modelo de eficacia educativa que permite al controlar el factor socioeconómico, determinar el valor agregado que las instituciones del Subsistema de Universidades Tecnológicas proporcionan a sus estudiantes. Es un estudio multinivel, longitudinal con resultados de 8,522 estudiantes de 38 universidades en 19 estados que sustentaron el examen nacional de ingreso a la educación superior (EXANI-II y el examen para el egreso de técnico superior universitario- Sistemas Informáticos (EGETSU-SI del Centro Nacional de Evaluación para la Educación Superior [CENEVAL] durante 2000-2006. El modelo identifica la eficacia de las instituciones y facilita la construcción de indicadores de calidad educativa.
Educação inclusiva no ensino superior: um novo desafio

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Marian A. L. Dias Ferrari

Full Text Available O crescente ingresso de alunos com necessidades educacionais especiais na rede regular de ensino torna necessário um aprofundamento na reflexão sobre a educação inclusiva. Este artigo tem por objetivo discutir os desafios da educação inclusiva no ensino superior. Com essa finalidade, retomamos a história da Universidade, verificamos seus objetivos e características principais, suas determinações nas instituições de ensino superior brasileiras e analisamos o percurso da educação inclusiva no cenário mundial e nacional. A partir daí, levantamos questões específicas da educação inclusiva no ensino superior e identificamos três níveis de desafios a serem enfrentados: a tomada de posição das instituições sobre os objetivos e a elegibilidade dos alunos para seus cursos, a necessidade de formação pedagógica dos professores do ensino superior para a educação inclusiva e, por fim, uma prática educativa que propicie a participação de alunos e professores no reconhecimento das diferenças e na criação de estratégias para a superação das dificuldades que surgirem.
The Role of Perceived In-group Moral Superiority in Reparative Intentions and Approach Motivation

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Zsolt P. Szabó

2017-05-01

Full Text Available Three studies examined how members of a national group react to in-group wrongdoings. We expected that perceived in-group moral superiority would lead to unwillingness to repair the aggression. We also expected that internal-focused emotions such as group-based guilt and group-based shame would predict specific, misdeed-related reparative intentions but not general approach motivation toward the victim groups. In Study 1, facing the in-group’s recent aggression, participants who believed that the Hungarians have been more moral throughout their history than members of other nations, used more exonerating cognitions, experienced less in-group critical emotions and showed less willingness to provide reparations for the members of the victim group. Study 2 and Study 3 confirmed most findings of Study 1. Perceived in-group moral superiority directly or indirectly reduced willingness to provide either general or specific reparations, while internally focused in-group critical emotions predicted specific misdeed-related reparative intentions but not general approach motivation. The role of emotional attachment to the in-group is considered.
The Role of Perceived In-group Moral Superiority in Reparative Intentions and Approach Motivation.

Science.gov (United States)

Szabó, Zsolt P; Mészáros, Noémi Z; Csertő, István

2017-01-01

Three studies examined how members of a national group react to in-group wrongdoings. We expected that perceived in-group moral superiority would lead to unwillingness to repair the aggression. We also expected that internal-focused emotions such as group-based guilt and group-based shame would predict specific, misdeed-related reparative intentions but not general approach motivation toward the victim groups. In Study 1, facing the in-group's recent aggression, participants who believed that the Hungarians have been more moral throughout their history than members of other nations, used more exonerating cognitions, experienced less in-group critical emotions and showed less willingness to provide reparations for the members of the victim group. Study 2 and Study 3 confirmed most findings of Study 1. Perceived in-group moral superiority directly or indirectly reduced willingness to provide either general or specific reparations, while internally focused in-group critical emotions predicted specific misdeed-related reparative intentions but not general approach motivation. The role of emotional attachment to the in-group is considered.
Superiority of legendre polynomials to Chebyshev polynomial in ...

African Journals Online (AJOL)

In this paper, we proved the superiority of Legendre polynomial to Chebyshev polynomial in solving first order ordinary differential equation with rational coefficient. We generated shifted polynomial of Chebyshev, Legendre and Canonical polynomials which deal with solving differential equation by first choosing Chebyshev ...
Superior ophthalmic vein enlargement and increased muscle index in dysthyroid optic neuropathy.

Science.gov (United States)

Lima, Breno da Rocha; Perry, Julian D

2013-01-01

To compare superior ophthalmic vein diameter and extraocular muscle index in patients with thyroid eye disease with or without optic neuropathy. High-resolution CT scan images of 40 orbits of 20 patients with history of thyroid eye disease (with or without optic neuropathy), who underwent orbital decompression surgery from January 2007 to November 2009, were retrospectively reviewed. Superior ophthalmic vein diameter was measured in coronal and axial planes. Extraocular muscle index was calculated according to the method proposed by Barrett et al. The clinical diagnosis of optic neuropathy was based on characteristic signs that included afferent pupillary defect, decreased visual acuity, visual field defects, and dyschromatopsia. Orbits were divided in 2 groups based on presence or absence of optic neuropathy. Superior ophthalmic vein diameter was significantly higher in orbits with concomitant optic neuropathy (mean 2.4 ± 0.4mm, p optic neuropathy (mean 57.9% ± 5.7%, p = 0.0002). Muscle index greater than 50% was present in all patients with dysthyroid optic neuropathy. This study suggests that patients with thyroid eye disease with enlarged superior ophthalmic vein and increased extraocular muscle index are more likely to have concomitant optic neuropathy.
Prólogo

OpenAIRE

Alta Hooker

2013-01-01

Este volumen No. 11 presenta una compilación estructurada en 6 secciones temáticas las cuales comprenden 9 artículos. La primera sección en Educación, presenta los artículos: Métodos de enseñanza de Física en la modalidad a distancia en el instituto sabatino “Esperanza”,en el municipio de Siuna; y, Comportamiento disciplinario en la escuela “Niño Jesús”, Siuna, Región Autónoma Atlántico Norte, 2011. La segunda sección, titulada Educación Superior en la Costa Caribe Nicaragüense presenta los a...
CT evaluation of decrease in attenuation in the superior segment of the left lower lobe

International Nuclear Information System (INIS)

Inaoka, Tsutomu; Takahashi, Koji; Ono, Hidetoshi

2003-01-01

We occasionally see decrease in attenuation in the superior segment of the left lower lobe on normal chest CT and notice that this finding could be seen in elder population. Then, we assessed the frequency, age distribution and cause of decrease in attenuation in the superior segment of the left lower lobe. Chest CT scans of 246 patients without lung or cardiac disorders were retrospectively reviewed. Segmental low attenuation area in the superior segment of the left lower lobe was identified in 12 patients (4.9%), which were 65-92 years old with mean age of 77.2 years old. In all of them, chest CT demonstrated that the tortuous descending aorta compressed directly the superior segmental bronchus of the left lower lobe. It is concluded that the lateral tortuousity of the descending aorta could cause decrease in attenuation in the superior segment of the left lower lobe. (author)
Cooperation of the ER-shaping proteins atlastin, lunapark, and reticulons to generate a tubular membrane network.

Science.gov (United States)

Wang, Songyu; Tukachinsky, Hanna; Romano, Fabian B; Rapoport, Tom A

2016-09-13

In higher eukaryotes, the endoplasmic reticulum (ER) contains a network of membrane tubules, which transitions into sheets during mitosis. Network formation involves curvature-stabilizing proteins, including the reticulons (Rtns), as well as the membrane-fusing GTPase atlastin (ATL) and the lunapark protein (Lnp). Here, we have analyzed how these proteins cooperate. ATL is needed to not only form, but also maintain, the ER network. Maintenance requires a balance between ATL and Rtn, as too little ATL activity or too high Rtn4a concentrations cause ER fragmentation. Lnp only affects the abundance of three-way junctions and tubules. We suggest a model in which ATL-mediated fusion counteracts the instability of free tubule ends. ATL tethers and fuses tubules stabilized by the Rtns, and transiently sits in newly formed three-way junctions. Lnp subsequently moves into the junctional sheets and forms oligomers. Lnp is inactivated by mitotic phosphorylation, which contributes to the tubule-to-sheet conversion of the ER.
Traumatic superior orbital fissure syndrome: assessment of cranial nerve recovery in 33 cases.

Science.gov (United States)

Chen, Chien-Tzung; Wang, Theresa Y; Tsay, Pei-Kwei; Huang, Faye; Lai, Jui-Pin; Chen, Yu-Ray

2010-07-01

Superior orbital fissure syndrome is a rare complication that occurs in association with craniofacial trauma. The characteristics of superior orbital fissure syndrome are attributable to a constellation of cranial nerve III, IV, and VI palsies. This is the largest series describing traumatic superior orbital fissure syndrome that assesses the recovery of individual cranial nerve function after treatment. In a review from 1988 to 2002, 33 patients with superior orbital fissure syndrome were identified from 11,284 patients (0.3 percent) with skull and facial fractures. Severity of cranial nerve injury and functional recovery were evaluated by extraocular muscle movement. Patients were evaluated on average 6 days after initial injury, and average follow-up was 11.8 months. There were 23 male patients. The average age was 31 years. The major mechanism of injury was motorcycle accident (67 percent). Twenty-two received conservative treatment, five were treated with steroids, and six patients underwent surgical decompression of the superior orbital fissure. After initial injury, cranial nerve VI suffered the most damage, whereas cranial nerve IV sustained the least. In the first 3 months, recovery was greatest in cranial nerve VI. At 9 months, function was lowest in cranial nerve VI and highest in cranial nerve IV. Eight patients (24 percent) had complete recovery of all cranial nerves. Functional recovery of all cranial nerves reached a plateau at 6 months after trauma. Cranial nerve IV suffered the least injury, whereas cranial nerve VI experienced the most neurologic deficits. Cranial nerve palsies improved to their final recovery endpoints by 6 months. Surgical decompression is considered when there is evidence of bony compression of the superior orbital fissure.
Morfologia da artéria cerebelar superior do macaco prego (Cebus apella L., 1766: divisões e anastomoses Morphology of the superior cerebellar artery of the “macaco prego” (Cebus paella L., 1766: divisions and anastomoses

Directory of Open Access Journals (Sweden)

Rosimeire Alves da Silva

2002-04-01

Full Text Available Dando continuidade a estudos já existentes na área de mapeamento da vascularização cerebral do Cebus apella e considerando a semelhança desse animal com outros primatas descritos, inclusive os humanos, estudou-se a morfologia das artérias cerebelares superiores, que destinam a irrigar a superfície superior do cerebelo. 57 hemisférios cerebelares foram injetados com látex corado e fixados em solução de formol a 10%, dissecados sob mesoscopia de luz com microdissecações. As artérias cerebelares superiores são simétricas em 84,21% e assimétricas em 7,01%, ramificam-se em 4 ramos: sendo 1 para o mesencéfalo e 3 troncos principais para a superfície superior do cerebelo e regiões anterior dessa superfície. Estas artérias terminam na fissura póstero-superior ou pós-semilunar após emitir vários ramos colaterais de hierarquia decrescente de calibreIn order to continue studies already done in the area of mapping the cerebral vascularization of Cebus paella and taking into consideration the resemblance of this animal with other primates described, humans included, we studied the morphology of the superior cerebellar arteries determined to perfuse the superior surface of the cerebellum. Fifty-seven cerebellar hemispheres were injected with stained latex, fixed in 10% formol solution and dissected under light mesoscopy. The superior cerebellar arteries are symmetrical in 84,21% and asymmetrical in 7,01%, and give off four branches, one to the mesencephalon and three mains branches to the upper surface of the cerebellum and its anterior portion. These arteries end in the posterior superior or post-semilunar fissure, after giving off many collaterals of decreasing diameter
DIGITAL STORYTELLING, EDUCAÇÃO SUPERIOR E LITERACIA DIGITAL

Directory of Open Access Journals (Sweden)

Josias Ricardo Hack

2013-04-01

Full Text Available O texto revisa e dialoga com autores de artigos e livros em Língua Inglesa e Língua Portuguesa sobre fundamentos técnicos da produção audiovisual, como o Digital Storytelling, a ser utilizada na educação superior e produzida pelos próprios interlocutores do processo de aprendizagem. O intuito é refletir sobre algumas características necessárias para se desenvolver uma experiência contextualizada com curtas histórias audiovisuais pessoais na aprendizagem de adultos. A metodologia de investigação é pautada em pesquisa bibliográfica nas bases de dados da Nottingham Trent University (Inglaterra e da Universidade Federal de Santa Catarina (Brasil. Os resultados do estudo apontam que certas habilidades, como a capacidade de construir uma narrativa e editar imagem, vídeo e som são requeridas dos envolvidos em educação superior em razão da inserção de múltiplas tecnologias digitais no cotidiano. Assim, a experiência prática de produção audiovisual educativa pode trazer a possibilidade de literacia digital pela realização de peças audiovisuais no processo de aprendizagem colaborativa de adultos. Palavras-chave: Histórias digitais. Digital Storytelling. Educação superior. Literacia digital. Aprendizagem de adultos.
[Aedes aegypti larval infestation index and identification of awareness, attitudes and practices related to Dengue in tire shops in Atlántico, Colombia].

Science.gov (United States)

Maestre-Serrano, Ronald; Pacheco-Lugo, Lisandro; Salcedo-Mendoza, Soraya

2015-10-01

Objective To identify the awareness, attitudes and practices related to dengue in owners and workers of tire ships, as well as the levels of mosquito infestation in tire shops in Atlántico department - Colombia. Methods We conducted a descriptive study. The variables were described as percentages and measures of central tendency and dispersion. Index of larval infestation and containers were calculated in each of the municipalities studied. We visited and inspected 111 tire shops. 26.1 % (29/111) of these were found positive for Ae. aegypti larvae. The municipalities of Piojó, Santo Tomás, Santa Lucia, Sabanagrande and Luruaco were characterized by a higher larval infestation index. Results Regarding dengue, 90.9 % of respondents considered it a problem for them and their families. 94.6 % know that is transmitted by mosquitoes. 91.1 % know the vector larvae under the name "sarapico", 3.6 % as "gusarapo". 98.2 % felt that there is a relationship between the larva and Ae. aegypti mosquito. 100 % of participantes recognized tires to be a breeding for mosquitoes. 85.7% believed fever to be the most common symptom. 83 % reported accessing the health post to cure the disease. 90.8 % throw out unusable tires as if they were garbage. Conclusion In the population studied, there is good awareness of dengue and its vector. Nevertheless, there are problems related to attitudes and prevention practices.
Estrutura de um fragmento de Floresta Atlântica em regeneração com ocorrência de Caesalpinia echinata Lam. (pau-brasil

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Liliane Baldan Zani

2012-09-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2012v25n4p75 Este trabalho teve por objetivo analisar a estrutura fitossociológica de um fragmento remanescente de Floresta Atlântica em regeneração no município de Aracruz-ES em uma floresta de tabuleiro com ocorrência natural de Caesalpinia echinata Lam. Foram instaladas 10 unidades amostrais (parcelas de 10 x 50m sendo amostrados todos os indivíduos com DAP≥5cm e <10cm. Ao todo foram amostrados 500 indivíduos distribuídos em 181 espécies. As famílias com maior riqueza foram Leguminosae (35, Sapotaceae (18 e Myrtaceae (14. As espécies mais importantes foram Caesalpinia echinata Lam., Eugenia tinguyensis Cambess. e Pterocarpus rohrii Vahl. O índice de Shannon (H’ foi de 4,89 e a equabilidade (J’ foi de 0,94. Essa área é um dos últimos fragmentos remanescentes com pau-brasil nativo do estado do Espírito Santo e a população dessa espécie encontra-se bem preservada no local, ocorrendo com grande frequência, enfatizando a importância da preservação de pequenos fragmentos florestais para conservação da biodiversidade.
A Cognitive Assessment of Highly Superior Autobiographical Memory

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LePort, Aurora K.R.; Stark, Shauna M.; McGaugh, James L.; Stark, Craig E.L.

2017-01-01

Highly Superior Autobiographical Memory (HSAM) is characterized as the ability to accurately recall an exceptional number of experiences and their associated dates from events occurring throughout much of one’s lifetime. The source of this ability has only begun to be explored. The present study explores whether other enhanced cognitive processes may be critical influences underlying HSAM abilities. We investigated whether enhanced abilities in the domains of verbal fluency, attention/inhibition, executive functioning, mnemonic discrimination, perception, visual working memory, or the processing of and memory for emotional details might contribute critically to HSAM. The results suggest that superior cognitive functioning is an unlikely basis of HSAM, as only modest advantages were found in only a few tests. In addition, we examined HSAM subjects’ memory of the testing episodes. Interestingly, HSAM participants recalled details of their own experiences far better than those experiences that the experimenter shared with them. These findings provide additional evidence that HSAM involves, relatively selectively, recollection of personal, autobiographical material. PMID:26982996

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