bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comorbidity between personality disorders and depressive symptomatology in women: A cross‐sectional study of three different transitional life stages
Authors: Enfoux Aurore , Courtois Robert , Duijsens Inge , Reveillere Christian , Senon Jean Louis , Magnin Guillaume , Voyer Melanie , Montmasson Helene , Camus Vincent , El‐Hage Wissam 
Published: March 2013

ABSTRACTThis study assessed the prevalence of personality disorders (PDs), according to DSM‐IV criteria, in relation to depressive symptomatology at three different periods of life in female subjects.Depressive symptoms and personality disorders were assessed in a sample of 568 women from three different transitional stages: 134 students, 314 primiparous women after childbirth and 120 women diagnosed with breast cancer. Depressive symptoms were assessed by the Hospital Depression and Anxiety Scale in the first and third groups and by the Edinburgh Post‐natal Depression Scale in the second group, whereas PDs were assessed by the French version of the Vragenlijst voor Kenmerken van de Persoonlijkheid.Depressive symptomatology and rates of PD (20.4% and 6.3%) were equivalent in the three groups. The prevalence of PD was higher in the depressed group compared with the non‐depressed group, with more paranoid, borderline, avoidant, obsessive–compulsive, schizotypal, antisocial, dependent and histrionic PD.Our findings support the hypothesis that PDs are more frequently associated with depressive symptoms. Borderline and avoidant PDs were more prevalent among young women. All cluster C PD (dependent, avoidant and obsessive–compulsive) co‐occurred significantly with depressive symptoms. Copyright © 2013 John Wiley & Sons, Ltd.
New insight into the binding mode of peptides at urotensin‐II receptor by Trp‐constrained analogues of P5U and urantide
Authors: Carotenuto Alfonso , Auriemma Luigia , Merlino Francesco , Limatola Antonio , Campiglia Pietro , Gomez‐Monterrey Isabel , di Villa Bianca Roberta d'Emmanuele , Brancaccio Diego , Santicioli Paolo , Meini Stefania , Maggi Carlo Alberto , Novellino Ettore , Grieco Paolo 
Published: March 2013

Urotensin II (U‐II) is a disulfide bridged peptide hormone identified as the ligand of a G‐protein‐coupled receptor. Human U‐II (H‐Glu‐Thr‐Pro‐Asp‐c[Cys‐Phe‐Trp‐Lys‐Tyr‐Cys]‐Val‐OH) has been described as the most potent vasoconstrictor compound identified to date.We have recently identified both a superagonist of human U‐II termed P5U (H‐Asp‐c[Pen‐Phe‐Trp‐Lys‐Tyr‐Cys]‐Val‐OH) and the compound termed urantide (H‐Asp‐c[Pen‐Phe‐d‐Trp‐Orn‐Tyr‐Cys]‐Val‐OH), which is the most potent UT receptor peptide antagonist described to date.In the present study, we have synthesized four analogues of P5U and urantide in which the Trp7 residue was replaced by the highly constrained l‐Tpi and d‐Tpi residues. The replacement of the Trp7 by Tpi led to active analogues. Solution NMR analysis allowed improving the knowledge on conformation–activity relationships previously reported on UT receptor ligands. Copyright © 2013 European Peptide Society and John Wiley & Sons, Ltd.
Migration, Development and the ‘Migration and Development Nexus’
Authors: Geiger Martin , Pécoud Antoine 
Published: March 2013

ABSTRACTThis paper provides an overview of current debates questioning the relationship between migration and development. A key argument is that mainstream academic and policy discussions often remain within a non‐critical paradigm that sees the relationship between migration and development as natural, and development as something that can be achieved through direct or indirect policy initiatives. The contributions to this special issue challenge this perspective by showing that the connection between migration and development is the product of a political and scientific construction. They demonstrate that both migration and development policies are embedded in imbalanced power relations and north–south divide. This calls for building upon the findings of critical development studies to rethink the so‐called ‘migration and development nexus’. Copyright © 2013 John Wiley & Sons, Ltd.
Dynamics of a magnetic vortex driven by an out‐of‐plane spin‐polarized current in a point‐contact geometry with lateral confinement
Authors: Liu Yan , Li Huanan , Hu Yong , Du An 
Published: March 2013

AbstractWe report the dynamical behaviors of a magnetic vortex driven by an out‐of‐plane spin‐polarized current in a point‐contact geometry using a micromagnetic simulation method. Polarity, chirality, and polarity plus chirality‐switching diagrams are presented corresponding to different current states. Besides vortex core gyrotropic motion, polarity switching, chirality switching, and polarity plus chirality switching, we also observe non‐switching and partial switching behaviors in some cases. Investigations of these switching behaviors find that polarity is switched by nucleation and annihilation of the vortex–antivortex pair for the polarity‐switching only regime, and chirality reversal is realized by moving, nucleation, and annihilation of vortices in the disk for lower current density, but by propagating of spin waves for higher current density. Moreover, the reversal of chirality is always accompanied by polarity switching, and the accompanied polarity switching for the higher current density case is realized by the expansion and compression of the vortex core, not the traditional vortex–antivortex pair‐mediated mechanism.
High speed in spin‐torque‐based magnetic memory using magnetic nanocontacts
Authors: Sbiaa R. , Piramanayagam S. N. , Liew T. 
Published: March 2013

AbstractMagnetization switching by a spin‐polarized current in perpendicular anisotropy devices with magnetic nanocontact (NC) is investigated using a micromagnetic formalism. The critical switching current (icr) and switching time (τ0) can be reduced when a soft layer is exchange coupled to the NC. The study reveals that devices with fewer NCs have smaller icr compared to those with a large number. Furthermore, τ0 for nanoconstricted devices is almost constant with anisotropy field (Hk), in contrast to devices without NCs that show an exponential increase with Hk. This suggests that nanoconstricted devices could be used to improve thermal stability, while reducing icr and τ0. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Resilience in Disaster Management and Public Policy: A Case Study of the Tohoku Disaster
Authors: Shimizu Mika 
Published: March 2013

AbstractThe Tohoku Disaster has had wide ranging and interconnected effects on social, environmental, and economic systems. Because Japan was arguably one of the world's most prepared nations in dealing with natural disasters, experts and policy makers have been struggling to answer questions like “How could Japan have been more resilient?” and “How could Japan have been better prepared?” This paper seeks to address two key gaps related to the integration of resilience into disaster management and public policy: (i) Few studies have provided an overarching analytical or structural framework for the inclusion of resilience into public policy and disaster management and (ii) few institutions have provided guidance as to the specific operational components of resilience and how to implement it. The paper outlines an analytical framework and an overarching structure for resilience‐based disaster management and public policy, focusing on the structure and components of resilience. Then, it examines how resilience can be incorporated into actionable disaster management policies, drawing on analyses of the experiences and lessons from the Tohoku Disaster.
Increasing Adaptive Capacity: What Is the Role of Local Institutions?
Authors: Malakar Yuwan 
Published: March 2013

AbstractThe need for strengthening adaptive capacity for the vulnerable has been overwhelmingly discussed in the discourse of climate change. This paper examines the roles and constraints of local institutions for increasing adaptive capacity. The role of institutions is analyzed under two broad headings: capacity building and participatory decision making. The constraints of institutions are analyzed based on the ability to learn and act. Participatory assessments were undertaken in the Meghauli and Devchuli Village Development Committees of Nepal to generate data for the assessment. Local government, Civil Society Organisations (CSOs), and social groups were considered for investigation. The findings demonstrate that local government is guided by political influences that contribute to disparity in decision making. The CSOs' role is comparatively satisfactory in capacity building of social groups, but there are questions on coordination and integration with local government. Within institutions, two prime constraints that hinder the ability to learn and act are lack of knowledge and attitude. The paper concludes that the role of local institutions is still very limited in increasing the adaptive capacity of vulnerable people. The scope of their work requires further expansion, backed with technical knowledge, appropriate policies, and effective coordination among all institutions.
Global Climate Change Perception, Local Risk Awareness, and Community Disaster Risk Reduction: A Case Study of Cartago City, Costa Rica
Authors: Hori Tsuneki , Shaw Rajib 
Published: March 2013

AbstractCartago City, Costa Rica has observed an increase in the damages and losses due to floods and landslides in recent decades. The city faces a challenge to enhance disaster risk management (DRM) capacity in order to reduce increasing disaster risk. This research identifies factors that enhance local DRM capacity in the context of increasing climate‐related events, focusing on the ability of communities that can complement local government's DRM initiative. The study involved 240 household surveys in four high flood risk communities in Cartago and found positive outcomes stemming from communities' perception of global climate change and awareness of local climate‐related disaster risk. Furthermore, the study identified two factors that increase awareness. Despite the communities' higher local climate‐related disaster risk awareness, however, the study found that communities take few disaster risk reduction (DRR) actions. Hence, the study identified three factors for promoting greater community DRR action.
High‐gain observer with higher order sliding mode for state and unknown disturbance estimations
Authors: Zhou Y. , Soh Y.C. , Shen J.X. 
Published: March 2013

SUMMARYIn this paper, we consider the estimation problem of a class of single‐input–single‐output nonlinear Lipschitz systems with nonmatching uncertainty or disturbance, where the distribution vector may include the unknown states. A hybrid nonlinear observer structure that combines a high‐gain feedback with higher order sliding mode term is proposed. The high‐gain feedback works to constrain the estimation error to within an invariant set, and the sliding mode term will asymptotically track the uncertainty if the system satisfies strict structure assumptions. Furthermore, with the higher order sliding mode, the chattering effect will be effectively attenuated without sacrificing robustness, and the system uncertainty can be recovered without filtering effect. Copyright © 2013 John Wiley & Sons, Ltd.
Experimental shift allowance in the deconvolution of SIMS depth profiles
Authors: Yunin Pavel Andreevich , Drozdov Yurii Nikolaevich , Drozdov Mikhail Nikolaevich 
Published: March 2013

AbstractWe study the deconvolution of the secondary ion mass spectrometry (SIMS) depth profiles of silicon and gallium arsenide structures with doped thin layers. Special attention is paid to allowance for the instrumental shift of experimental SIMS depth profiles. This effect is taken into account by using Hofmann's mixing‐roughness‐information depth model to determine the depth resolution function. The ill‐posed inverse problem is solved in the Fourier space using the Tikhonov regularization method. The proposed deconvolution algorithm has been tested on various simulated and real structures. It is shown that the algorithm can improve the SIMS depth profiling relevancy and depth resolution. The implemented shift allowance method avoids significant systematic errors of determination of the near‐surface delta‐doped layer position. Copyright © 2013 John Wiley & Sons, Ltd.
Learning to Argue and Arguing to Learn: Argument‐Driven Inquiry as a Way to Help Undergraduate Chemistry Students Learn How to Construct Arguments and Engage in Argumentation During a Laboratory Course
Authors: Walker Joi Phelps , Sampson Victor 
Published: March 2013

AbstractThis study examines whether students enrolled in a general chemistry I laboratory course developed the ability to participate in scientific argumentation over the course of a semester. The laboratory activities that the students participated in during the course were designed using the Argument‐Driven Inquiry (ADI) an instructional model. This model gives a more central place to argumentation and the role of argument in the social construction of scientific knowledge. The development of the students' ability to construct a scientific argument and to participate in scientific argumentation was tracked over time using three different data sources. These data sources included a performance task, which was administered at the beginning, middle, and end of the course, video recording of the students participating in episodes of argumentation, and the lab reports the students wrote as part of each lab activity. As time was the independent variable in this study, a repeated measure ANOVA was used to evaluate changes in the ways students performed on each task over the course of the semester. The results of the analysis indicate that there was significant growth in the quality of the students' written arguments and nature of their oral argumentation. There also was a significant correlation between written and oral arguments. These results suggest that the use of an integrated instructional model that places emphasis on argument and argumentation can have a positive impact on the quality of the arguments students include in their investigation reports, the argumentation they engage in during lab activities, and their overall performance on tasks that require them to develop and support a valid conclusion with genuine evidence. © 2013 Wiley Periodicals, Inc. J Res Sci Teach 50: 561–596, 2013
Cognition and art: the current interdisciplinary approach
Authors: Zaidel Dahlia W. 
Published: March 2013

AbstractFor decades discussions of cognition and art were anchored in psychological and perceptual theories alone and were focused primarily on pictorial art, but in recent years a major conceptual shift has altered the discussions. Now, insights, concepts, and findings from archaeology, anthropology, brain evolution, biology, genetics, neurology, and neuroscience together with psychology and perception are leading into deeper scholarly explorations of the topic than was done previously. The implication is that the relationship between cognition and art can be fully grasped only when scholarship from all these disciplines is included in the discussions. We now emphasize that the diverse art forms practiced ubiquitously in human societies have a communicative value with deep biological roots and that art is another expression of the symbolic cognition that is the hallmark of the human brain, but that early societal‐type organization played a pivotal role in the enduring practice of art. Moreover, neurological evidence from artists with brain damage suggests that the communicative nature of art is neuronally damage‐resistant, much more so than language. Rather than placing pictorial art center stage, as was done previously, the current interdisciplinary approach includes all the arts, points to sociocultural triggers for art practice, to the demographic conditions that prevailed in art's early beginnings, and to the interplay of these evolutionarily adaptive factors with deep biological motivations in the artist.WIREs Cogn Sci2013, 4:431–439. doi: 10.1002/wcs.1236This article is categorized under:Cognitive Biology > Evolutionary Roots of CognitionNeuroscience > Behavior
Synthesis, Characterization, Crystal Structure, and Biological Activities of Transition Metal Complexes with 1‐Phenyl‐3‐methyl‐5‐hydroxypyrazole‐4‐methylene‐8′‐quinolineimine
Authors: Cheng Xiao‐Ying , Wang Ming‐Fang , Yang Zheng‐Yin , Li Yong , Liu Zeng‐Chen , Zhou Qiao‐Xia 
Published: March 2013

AbstractThe Schiff base ligand, 1‐phenyl‐3‐methyl‐5‐hydroxypyrazole‐4‐methylene‐8′‐quinolineimine, and its CuII, ZnII, and NiII complexes were synthesized and characterized. The crystal structure of the ZnII complex was determined by single‐crystal X‐ray diffraction, indicating that the metal ions and Schiff base ligand can form mononuclear six‐coordination complexes with 1:1 metal‐to‐ligand stoichiometry at the metal ions as centers. The binding mechanism and affinity of the ligand and its metal complexes to calf thymus DNA (CT DNA) were investigated by UV/Vis spectroscopy, fluorescence titration spectroscopy, EB displacement experiments, and viscosity measurements, indicating that the free ligand and its metal complexes can bind to DNA via an intercalation mode with the binding constants at the order of magnitude of 105–106 M–1, and the metal complexes can bind to DNA more strongly than the free ligand alone. In addition, antioxidant activities of the ligand and its metal complexes were investigated through scavenging effects for hydroxyl radical in vitro, indicating that the compounds show stronger antioxidant activities than some standard antioxidants, such as mannitol. The ligand and its metal complexes were subjected to cytotoxic tests, and experimental results indicated that the metal complexes show significant cytotoxic activity against lung cancer A 549 cells.
Household Survey in Sierra Leone Reveals High Prevalence of Surgical Conditions in Children
Authors: Groen Reinou S. , Samai Mohamed , Petroze Robin T. , Kamara Thaim B. , Cassidy Laura D. , Joharifard Shahrzad , Yambasu Sahr , Nwomeh Bennedict C. , Kushner Adam L. 
Published: March 2013

AbstractBackgroundAlthough great efforts are being undertaken to reduce child morbidity and mortality globally, there is limited knowledge about the need for pediatric surgical care. Some data on surgical need is available from hospital registries, but it is difficult to interpret for countries with limited surgical capacity.MethodsA cross‐sectional two‐stage cluster‐based sample survey was undertaken in Sierra Leone, using the Surgeons OverSeas Assessment of Surgical Need tool. Data were collected and analyzed on numbers of children needing surgical care and pediatric deaths that may have been averted if surgical care had been available.ResultsA total of 1,583 children out of 3,645 individuals (43.3 %) were interviewed. Most (64.0 %, n = 1,013) participants lived in rural areas. At the time of interview, 279 (17.6; 95 % confidence interval (95 % CI): 15.7–19.5 %) had a possible surgical condition in need of a consultation. Children in the northern and eastern provinces of Sierra Leone were much more likely to report a surgical problem than those in the urban‐west.ConclusionsThere is a high need for surgical care in the pediatric population of Sierra Leone. While additional resources should be allocated to address that need, more research is needed. Ideally, questions on surgically treatable conditions should be added to the frequently performed health care surveys on the pediatric population.
A survey on automatic techniques for enhancement and analysis of digital photography
Authors: Cavalcanti Claudio S. V. C. , Gomes Herman Martins , De Queiroz José Eustáquio Rangel 
Published: March 2013

Abstract
The fast growth in the consumer digital photography industry during the past decade has led to the acquisition and storage of large personal and public digital collections containing photos with different quality levels and redundancy, among other aspects. This naturally increased the difficulty in selecting or modifying those photos. Within the above context, this survey focuses on systematically reviewing the state-of-art on techniques for the enhancement and analysis of digital photos. Nevertheless, it is not within the scope of this survey to review image quality metrics for evaluating degradation due to compression, digital sensor noise, and affine issues. Assuming the photos have good quality in those aspects, this review is centered on techniques that might be useful to automate the task of selecting photos from large collections or to enhance the visual aspect of imperfect photos by using some perceptual measure.
The effects of acute doxorubicin treatment on proteome lysine acetylation status and apical caspases in skeletal muscle of fasted animals
Authors: Dirks-Naylor Amie J. , Tran Ngan T. K. , Yang Sendra , Mabolo Raean , Kouzi Samir A. 
Published: March 2013

BackgroundDoxorubicin treatment is known to cause muscular weakness. However, the cellular mechanisms have not been elucidated. We aimed to determine the effects of acute doxorubicin treatment on proteome lysine acetylation status, an indication of the apoptotic and inflammatory environment, and the expression and activation of various apical caspases involved in the initiation of apoptosis.MethodsSix‐week‐old male F344 rats were injected intraperitoneally with 20 mg/kg of doxorubicin or saline. Once the treatment was administered, both groups of animals were fasted with no food or water until sacrifice 24 h posttreatment.ResultsDoxorubicin treatment affected neither the proteome lysine acetylation status nor the expression of sirtuin 1, sirtuin 3, SOD1, or SOD2 in soleus of fasted animals. Doxorubicin treatment also did not affect the expression or activation of procaspase‐1, procaspase‐8, procaspase‐9, or procaspase−12.ConclusionWe suggest that doxorubicin does not exert a direct effect on these catabolic parameters in skeletal muscle in vivo.
Hydration lubrication
Authors: Klein Jacob 
Published: March 2013

AbstractThe hydration lubrication paradigm, whereby hydration layers are both strongly held by the charges they surround, and so can support large pressures without being squeezed out, and at the same time remain very rapidly relaxing and so have a fluid response to shear, provides a framework for understanding, controlling, and designing very efficient boundary lubrication systems in aqueous and biological media. This review discusses the properties of confined water, which—unlike organic solvents—retains its fluidity down to molecularly thin films. It then describes lubrication by hydrated ions trapped between charged surfaces, and by other hydrated boundary species including charged and zwitterionic polymer brushes, surfactant monolayers, liposomes, and biological macromolecules implicated in synovial joint lubrication. Finally, challenges and prospects for future development of this new boundary lubrication approach are considered.
Frictional behavior of nanostructured carbon films
Authors: Diao Dongfeng , Wang Chao , Fan Xue 
Published: March 2013

Abstract
We propose a new path for preparing nanostructured carbon films (NCFs) by using electron cyclotron resonance (ECR) plasma sputtering with ion-electron hybrid irradiation for controlling the frictional behavior. The frictional behavior of the NCF was measured by using a pin-on-disk tribometer with a nanoprobe displacement sensor, and the transition curves of the friction coefficient and microdisplacement of the NCFs were examined. The friction mechanism was discussed by transmission electron microscopy (TEM) observation on the wear track. From the results, we found a new method to prepare NCFs, which has the potential to achieve low friction at the early stage of sliding contact. In addition, the technology of ECR plasma with ion-electron hybrid irradiation provides a new vision to rebuild a nanostructured surface from an original surface for controlling the frictional behavior.