bluuebunny/crossref_metadata_2025_split huggingface dataset:
Forebrain circuits underlying the social modulation of vocal communication signals
Authors: Matheson Laura E. , Sun Herie , Sakata Jon T. 
Published: May 2015

ABSTRACTAcross vertebrate species, signalers alter the structure of their communication signals based on the social context. For example, male Bengalese finches produce faster and more stereotyped songs when directing song to females (female‐directed [FD] song) than when singing in isolation (undirected [UD] song), and such changes have been found to increase the attractiveness of a male's song. Despite the importance of such social influences, little is known about the mechanisms underlying the social modulation of communication signals. To this end, we analyzed differences in immediate early gene (EGR‐1) expression when Bengalese finches produced FD or UD song.Relative to silent birds, EGR‐1 expression was elevated in birds producing either FD or UD song throughout vocal control circuitry, including the interface nucleus of the nidopallium (NIf), HVC, the robust nucleus of the arcopallium (RA), Area X, and the lateral magnocellular nucleus of the anterior nidopallium (LMAN).Moreover, EGR‐1 expression was higher in HVC, RA, Area X, and LMAN in males producing UD song than in males producing FD song, indicating that social context modulated EGR‐1 expression in these areas. However, EGR‐1 expression was not significantly different between males producing FD or UD song in NIf, the primary vocal motor input into HVC, suggesting that context‐dependent changes could arisede novoin HVC. The pattern of context‐dependent differences in EGR‐1 expression in the Bengalese finch was highly similar to that in the zebra finch and suggests that social context affects song structure by modulating activity throughout vocal control nuclei.© 2015 Wiley Periodicals, Inc. Develop Neurobiol 76: 47–63, 2016
Can changes in the distributions of resident birds in China over the past 50 years be attributed to climate change?
Authors: Wu Jianguo , Zhang Guobin 
Published: May 2015

AbstractThe distributions of bird species have changed over the past 50 years in China. To evaluate whether the changes can be attributed to the changing climate, we analyzed the distributions of 20 subspecies of resident birds in relation to climate change. Long‐term records of bird distributions, gray relational analysis, fuzzy‐set classification techniques, and attribution methods were used. Among the 20 subspecies of resident birds, the northern limits of over half of the subspecies have shifted northward since the 1960s, and most changes have been related to the thermal index. Driven by climate change over the past 50 years, the suitable range and latitude or longitude of the distribution centers of certain birds have exhibited increased fluctuations. The northern boundaries of over half of the subspecies have shifted northward compared with those in the 1960s. The consistency between the observed and predicted changes in the range limits was quite high for some subspecies. The changes in the northern boundaries or the latitudes of the centers of distribution of nearly half of the subspecies can be attributed to climate change. The results suggest that climate change has affected the distributions of particular birds. The method used to attribute changes in bird distributions to climate change may also be effective for other animals.
Syntheses, Spectroscopy, and Structural Analyses of Dinuclear Chiral‐at‐Metal μ‐Aqua‐tetrakis[(R or S)‐N‐1‐(Ar)ethylsalicylaldiminato]di‐Λ‐ or ‐Δ‐nickel(II) Complexes
Authors: Enamullah Mohammed , Quddus Mohammad Abdul , Hasan Mohammad Rezabul , Pescitelli Gennaro , Berardozzi Roberto , Reiß Guido J. , Janiak Christoph 
Published: May 2015

AbstractEnantiopure dinuclear μ‐aqua‐tetrakis[(R or S)‐N‐1‐(Ar)ethylsalicylaldiminato]di‐Λ‐ or ‐Δ‐nickel(II) [Ar = C6H5 (R‐1/S‐1), p‐MeOC6H4 (R‐2/S‐2), p‐ClC6H4 (R‐3/S‐3), p‐BrC6H4 (R‐4)] complexes have been synthesized from the reaction between (R or S)‐N‐1‐(Ar)ethylsalicylaldimine and nickel(II) acetate. Their CD spectra demonstrate chirality transfer from the ligands to the metal ions and a mirror‐image relationship for the enantiomeric pair R‐3/S‐3 in thf. DSC analyses show that the complexes exhibit an irreversible dissociation to the mononuclear species, which in turn undergo decomposition. The 1H NMR spectra reveal the presence of four salicylaldiminates, one aqua ligand, and two molecules of methanol in each dinuclear complex. They also confirm the existence of a dinuclear‐bridged aqua bis‐octahedral NiII complex in solution. The IR spectra in CH2Cl2 show a very strong band at around 2306 cm–1 due to the νO–H of the bridged aqua ligand. The X‐ray structures of R‐2, S‐2, R‐3, and S‐3 confirm the formation of dinuclear compounds comprising two nickel ions, four salicylaldiminates, and one aqua ligand with two molecules of methanol (or water in S‐2). Each nickel ion is surrounded by two N,O‐chelating salicylaldiminates, a bridging salicyl‐O atom from the neighboring nickel ion, and a bridging aqua ligand in a distorted octahedral polyhedron. Analyses of the absolute structures reveal a diastereomeric induction of the R or S ligand giving a Λ or Δ configuration at the nickel atoms in R‐2/3 or S‐2/3 that is independent of the ligand substituents.
Peptide‐Catalyzed Desymmetrization of an Achiral Ferrocenyl Compound To Induce Planar Chirality
Authors: Akagawa Kengo , Akiyama Midori , Kudo Kazuaki 
Published: May 2015

AbstractSelective monohydrogenation of an achiral ferrocenebis(enal) was achieved with a resin‐supported peptide catalyst to afford an enantioenriched planar‐chiral product. It was also demonstrated that the reaction was followed by a kinetic resolution through cyclization of the product.
Label‐Free Electrochemical Aptasensor for Determination of Chloramphenicol Based on Gold Nanocubes‐Modified Screen‐Printed Gold Electrode
Authors: Bagheri Hashkavayi Ayemeh , Bakhsh Raoof Jahan , Ojani Reza , Hamidi Asl Ezat 
Published: May 2015

AbstractAn ultrasensitive label‐free electrochemical aptasensor was developed for selective detection of chloramphenicol (CAP). The aptasensor was made using screen‐printed gold electrode modified with synthesized gold nanocube/cysteine. The interactions of CAP with aptamer were studied by cyclic voltammetry, square wave voltammetry (SWV) and electrochemical impedance spectroscopy. Under optimized conditions, two linear calibration curves were obtained for CAP determination using SWV technique, from 0.03 to 0.10 µM and 0.25–6.0 µM with a detection limit of 4.0 nM. The aptasensor has the advantages of good selectivity and stability and applied to the determination of CAP in human blood serum sample.
Electrochemical Modulation of the Fluorescence of Cyanine Dye Cy5
Authors: Zhang Min , Jiang Junguang , Cai Mingjun , Wang Hongda 
Published: May 2015

AbstractOrganic fluorescent dyes are widely used in single molecule localization microscopy, where their performances are determined by the photophysical properties. Herein, we utilized a sensitive method to modulate the fluorescence of organic dyes by external potentials using a combination of electrochemical cell and super‐resolution fluorescent microscopy. Cy5 (cyanine dye) was chosen as a model molecule considering its wide application and commercial availability. We applied different potentials on the Au electrode to change the Coulombic charge microenvironment of Cy5. When the electrode potential was adjusted negatively, Cy5 displayed a better photostability. This method is proved effective in adjusting the fluorescence of organic dyes.
The Functional Significance of Shyness in Anorexia Nervosa
Authors: Winecoff Amy A. , Ngo Lawrence , Moskovich Ashley , Merwin Rhonda , Zucker Nancy 
Published: May 2015

AbstractThe defining features of anorexia nervosa (AN) include disordered eating and disturbance in the experience of their bodies; however, many women with AN also demonstrate higher harm avoidance (HA), lower novelty seeking, and challenges with interpersonal functioning. The current study explored whether HA and novelty seeking could explain variation in disordered eating and social functioning in healthy control women ( n = 18), weight‐restored women with a history of AN (n = 17), and women currently‐ill with AN (AN; n = 17). Our results indicated that clinical participants (AN + weight‐restored women) reported poorer social skills than healthy control participants. Moreover, the relationship between eating disorder symptoms and social skill deficits was mediated by HA. Follow‐up analyses indicated that only the ‘shyness with strangers’ factor of HA independently mediated this relationship. Collectively, our results suggest a better understanding of shyness in many individuals with eating disorders could inform models of interpersonal functioning in AN. Copyright © 2015 John Wiley & Sons, Ltd and Eating Disorders Association.
Optimization of intermittent microwave–convective drying using response surface methodology
Authors: Aghilinategh Nahid , Rafiee Shahin , Hosseinpour Soleiman , Omid Mahmoud , Mohtasebi Seyed Saeid 
Published: May 2015

AbstractIn this study, response surface methodology was used for optimization of intermittent microwave–convective air drying (IMWC) parameters with employing desirability function. Optimization factors were air temperature (40–80°C), air velocity (1–2 m/sec), pulse ratio) PR ((2–6), and microwave power (200–600 W) while responses were rehydration ratio, bulk density, total phenol content (TPC), color change, and energy consumption. Minimum color change, bulk density, energy consumption, maximum rehydration ratio, and TPC were assumed as criteria for optimizing drying conditions of apple slices in IMWC. The optimum values of process variables were 1.78 m/sec air velocity, 40°C air temperature, PR 4.48, and 600 W microwave power that characterized by maximum desirability function (0.792) using Design expert 8.0. The air temperature and microwave power had significant effect on total responses, but the role of air velocity can be ignored. Generally, the results indicated that it was possible to obtain a higher desirability value if the microwave power and temperature, respectively, increase and decrease.
Effect of nano‐composite and Thyme oil (Tymus Vulgaris L) coating on fruit quality of sweet cherry (Takdaneh Cv) during storage period
Authors: Nabifarkhani Naser , Sharifani Mehdi , Daraei Garmakhany Amir , Ganji Moghadam Ebrahim , Shakeri Alireza 
Published: May 2015

AbstractSweet cherry is one of the most appreciated fruit by consumers since it is an early season fruit and has an excellent quality. In this study effect of active nano composite formed from chitosan (as a matrix material), nano cellulose fiber (1% concentration) and Thyme oils (Tymus Vulgaris L) at 1% concentration on fruits quality was investigated. Treated fruits were stored at 1°C for 5 weeks and changes of different qualities attributes including weight loss, total acidity, TSS, anthocyanin, total sugar and malic acid content (by high performance liquid chromatography (HPLC) method) were measured each week. Results showed that nano composite and Thyme oil significantly affect fruit's water retention and so decrease fruit weight loss and preserve anthocyanin (P < 0.05). None of applied treatments had any significant effects in comparison with control in regard to acidity while total sugar content and TSS significantly affected by treatment compared to control samples. Result of HPLC analysis showed that there was no significant difference between different treatment and control sample in term of malic acid concentrations during storage period but increase storage time lead to increase malic acid concentration in all treatments. For conclusion it can be Saied that fruits coating with nano‐composite, lead to increase fruit shelf life, better appearance and prevents fungal growth that may be due to creation of an active packaging by these compounds.
Medical examiner and coroner reports: uses and limitations in the epidemiology and prevention of late‐life suicide
Authors: Cheung Gary , Merry Sally , Sundram Frederick 
Published: May 2015

ObjectiveLate‐life suicide is a growing public health concern in many parts of the world. Understanding the contributory factors to completed suicide is essential to inform the development of effective suicide risk assessment and management. The aim of this study is to synthesise the findings in studies that used coroner or medical examiner records to determine these contributory factors.MethodsThe databases of Scopus (from 1960), MEDLINE (from 1946) and PsychINFO (from 1806) were searched in August 2013, to identify studies that used coroner or medical examiner records for investigating the epidemiological, sociodemographic characteristics and clinical aspects of late‐life suicide.ResultsIn total, 25 studies were identified. There was a lack of standardisation of variables assessed between studies leading to incomplete datasets in some work. However, a diagnosis of depression was found in 33%, and depressive mood/symptoms in 47% of cases. About 55% had a physical health problem. Terminal illness was associated with a smaller proportion (7.1%) of the cases. Older people were more likely to have had contact with primary care rather than mental health services prior to suicide.ConclusionsDespite their limitations, coroner and medical examiner records provide an opportunity for examining suicide epidemiology. Targeting primary care providers where late‐life depression and physical illness can be detected and treated is a potential strategy to address late‐life suicide. Copyright © 2015 John Wiley & Sons, Ltd.
Medicare Managed Care Spillovers and Treatment Intensity
Authors: Callison Kevin 
Published: May 2015

SummaryEvidence suggests that the share of Medicare managed care enrollees in a region affects the costs of treating traditional fee‐for‐service (FFS) Medicare beneficiaries; however, little is known about the mechanisms through which these ‘spillover effects’ operate. This paper examines the relationship between Medicare managed care penetration and treatment intensity for FFS enrollees hospitalized with a primary diagnosis of AMI. I find that increased Medicare managed care penetration is associated with a reduction in both the costs and the treatment intensity of FFS AMI patients. Specifically, as Medicare managed care penetration increases, FFS AMI patients are less likely to receive surgical reperfusion and mechanical ventilation and to experience an overall reduction in the number of inpatient procedures. Copyright © 2015 John Wiley & Sons, Ltd.
Capital Inflows and Economic Growth: Does the Role of Institutions Matter?
Authors: Slesman Ly , Baharumshah Ahmad Zubaidi , Wohar Mark E. 
Published: May 2015

AbstractRecent evidence shows that institutions figure prominently in explaining the ‘Lucas paradox’. Using a threshold regression model, we extend this evidence to a situation where institutions index the relationship between foreign capital inflows and economic growth. We find strong and robust evidence that portfolio equity (including foreign direct investment) and debt inflows have positive effects on growth only in countries with high‐quality institutions. Countries that fall below the threshold level of institutional quality record either insignificant or negative effects. This paper provides a possible explanation on the so‐called Lucas paradox. Copyright © 2015 John Wiley & Sons, Ltd.
Purification, Partial Characterizations, and N‐Terminal Amino Acid Sequence of a Procoagulant Protein FV‐2 from Daboia Russelli Siamensis (Myanmar) Venom
Authors: Zhu Weiwei , Wu Zheng , Shen Shuhao , Liu Jun , Xiang Nanlin , Liao Yunjian , Lin Xi , Chen Lixin , Chen Qi 
Published: May 2015

ABSTRACTIn this study, we purified and characterized the procoagulant protein FV‐2 from Daboia russelli siamensis (Myanmar) venom using ion‐exchange chromatography on CM‐Sephadex C‐50 and gel filtration on SuperdexTM G‐75 column. The activation of factor X and prothrombin was determined, respectively, by specific chromogenic substrates. The fibrinogen‐clotting activity, thermal stability, and pH stability were also determined. The N‐treminal sequence was determined by the National Center of Biomedical Analysis of China. In the end, FV‐2 was achieved with a molecular weight of 13,608.0 Da. It could activate factor X, but did not affect prothrombin or fibrinogen. The suitable pH was 6.5–7.5, and the suitable temperature ranged from 25 to 60°C. The N‐terminal sequence was Asn‐Phe‐Phe‐Gln‐Phe‐Ala‐Glu‐Met‐Ile‐Val‐Lys‐Met‐Thr‐Gly‐Lys. Taken together, our studies suggest that FV‐2 is a factor X–activating enzyme, which can activate factor X to factor Xa, but it has no effect on prothrombin and fibrinogen.
Psychological Inflexibility and Psychopathology in 9‐1‐1 Telecommunicators
Authors: Lilly Michelle M. , Allen Christy E. 
Published: May 2015

AbstractMental health in 9‐1‐1 telecommunicators has been understudied in comparison to other emergency responders. This study enrolled a sample of telecommunicators from across the United States (N = 808). As measured by self‐report, the prevalence of current probable posttraumatic stress disorder (PTSD) was 17.6% to 24.6%; it was 23.9% for probable major depression. Structural equation modeling revealed a significant direct effect of psychological inflexibility on psychopathology (path coefficient = .32) when considered among duty‐related distress and dissociation, neuroticism, anger, and emotion dysregulation. The results provided further evidence of the adverse psychological effects of duty‐related trauma exposure, including exposure that is vicarious in nature. The results indicate a need for prevention and intervention in this population, with psychological inflexibility as a potential target in these efforts.
Nonrigid groupwise registration for motion estimation and compensation in compressed sensing reconstruction of breath‐hold cardiac cine MRI
Authors: Royuela‐del‐Val Javier , Cordero‐Grande Lucilio , Simmross‐Wattenberg Federico , Martín‐Fernández Marcos , Alberola‐López Carlos 
Published: May 2015

PurposeCompressed sensing methods with motion estimation and compensation techniques have been proposed for the reconstruction of accelerated dynamic MRI. However, artifacts that naturally arise in compressed sensing reconstruction procedures hinder the estimation of motion from reconstructed images, especially at high acceleration factors. This work introduces a robust groupwise nonrigid motion estimation technique applied to the compressed sensing reconstruction of dynamic cardiac cine MRI sequences.Theory and MethodsA spatio‐temporal regularized, groupwise, nonrigid registration method based on a B‐splines deformation model and a least squares metric is used to estimate and to compensate the movement of the heart in breath‐hold cine acquisitions and to obtain a quasistatic sequence with highly sparse representation in temporally transformed domains.ResultsShort axis in vivo datasets are used for validation, both original multicoil as well as DICOM data. Fully sampled data were retrospectively undersampled with various acceleration factors and reconstructions were compared with the two well‐known methods k‐t FOCUSS and MASTeR. The proposed method achieves higher signal to error ratio and structure similarity index for medium to high acceleration factors.ConclusionsReconstruction methods based on groupwise registration show higher quality reconstructions for cardiac cine images than the pairwise counterparts tested. Magn Reson Med 75:1525–1536, 2016. © 2015 Wiley Periodicals, Inc.
Cylindrical spirals associated with severe congenital muscle weakness and epileptic encephalopathy
Authors: Malfatti Edoardo , Chaves Marcelo , Bellance Remi , Viou Mai Thao , Sarrazin Elisabeth , Fardeau Michel , Romero Norma B. 
Published: May 2015

ABSTRACTIntroduction: Cylindrical spirals are characteristic muscular inclusions consisting of spiraling double‐laminated membranes. They are found in heterogeneous clinical conditions. Methods: We obtained muscle biopsies from 2 young sisters with severe congenital hypotonia, muscle weakness, and epileptic encephalopathy, and identified cylindrical spirals. Results: We found an association between congenital encephalomyopathy and cylindrical spirals. Conclusions: In this morphological and ultrastructural study, we speculate on the origin of these peculiar structures. Muscle Nerve 52: 895–899, 2015
On the understanding of cyclic interaction mechanisms in an energy pile group
Authors: Suryatriyastuti M.E. , Burlon S. , Mroueh H. 
Published: May 2015

SummaryIntegrating ground heat exchanger elements into concrete piles is now considered as an efficient energy solution for heating/cooling of buildings. In addition to the static load of buildings, the concrete piles also undergo a cycle of thermal deformation. In the case of single energy pile, calculation methods already exist and permit to perform a proper geotechnical design. In the case of energy pile group, the thermo‐mechanical interactions within the group are more complex. Very few experimental results on the energy pile group are available so that numerical analysis can be an interesting way to provide complementary results about their behavior. This paper deals with a numerical analysis including a comparison between a single energy pile and an energy pile group with different boundary conditions at the pile head. In order to take into account the stress reversal induced by the thermal expansions and contractions, a cyclic elastoplastic constitutive model is introduced at the soil–pile interface. The analysis aims to give some insights about the long‐term cyclic interaction mechanisms in the energy pile group. Based on this qualitative study, some guidance can be brought for the design of energy piles in the case where group effects should be considered. Copyright © 2015 John Wiley & Sons, Ltd.
Modified modulus‐based matrix splitting iteration methods for linear complementarity problems
Authors: Xu Wei‐wei 
Published: May 2015

SummaryFor solving the large sparse linear complementarity problems, we establish modified modulus‐based matrix splitting iteration methods and present the convergence analysis when the system matrices are H+‐matrices. The optima of parameters involved under some scopes are also analyzed. Numerical results show that in computing efficiency, our new methods are superior to classical modulus‐based matrix splitting iteration methods under suitable conditions. Copyright © 2015 John Wiley & Sons, Ltd.
Mixed‐mode delamination in 2D layered beam finite elements
Authors: Škec Leo , Jelenić Gordan , Lustig Nikola 
Published: May 2015

SummaryIn this work, a 2D finite element (FE) formulation for a multi‐layer beam with arbitrary number of layers with interconnection that allows for mixed‐mode delamination is presented. The layers are modelled as linear beams, while interface elements with embedded cohesive‐zone model are used for the interconnection. Because the interface elements are sandwiched between beam FEs and attached to their nodes, the only basic unknown functions of the system are two components of the displacement vector and a cross‐sectional rotation per layer. Damage in the interface is modelled via a bi‐linear constitutive law for a single delamination mode and a mixed‐mode damage evolution law. Because in a numerical integration procedure, the damage occurs only in discrete integration points (i.e. not continuously), the solution procedure experiences sharp snap backs in the force‐displacements diagram. A modified arc‐length method is used to solve this problem. The present model is verified against commonly used models, which use 2D plane‐strain FEs for the bulk material. Various numerical examples show that the multi‐layer beam model presented gives accurate results using significantly less degrees of freedom in comparison with standard models from the literature. Copyright © 2015 John Wiley & Sons, Ltd.