bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diversity and evolution of the Wolbachia endosymbionts of Bemisia (Hemiptera: Aleyrodidae) whiteflies
Authors: Bing Xiao‐Li , Xia Wen‐Qiang , Gui Jia‐Dong , Yan Gen‐Hong , Wang Xiao‐Wei , Liu Shu‐Sheng 
Published: June 2014

AbstractWolbachia is the most prevalent symbiont described in arthropods to date. Wolbachia can manipulate host reproduction, provide nutrition to insect hosts and protect insect hosts from pathogenic viruses. So far, 13 supergroups of Wolbachia have been identified. The whitefly Bemisia tabaci is a complex containing more than 28 morphologically indistinguishable cryptic species. Some cryptic species of this complex are invasive. In this study, we report a comprehensive survey of Wolbachia in B. tabaci and its relative B. afer from 1658 insects representing 54 populations across 13 provinces of China and one state of Australia. Based on the results of PCR or sequencing of the 16S rRNA gene, the overall rates of Wolbachia infection were 79.6% and 0.96% in the indigenous and invasive Bemisia whiteflies, respectively. We detected a new Wolbachia supergroup by sequencing five molecular marker genes including 16S rRNA, groEL, gltA, hcpA, and fbpA genes. Data showed that many protein‐coding genes have limitations in detecting and classifying newly identified Wolbachia supergroups and thus raise a challenge to the known Wolbachia MLST standard analysis system. Besides, the other Wolbachia strains detected from whiteflies were clustered into supergroup B. Phylogenetic trees of whitefly mitochondrial cytochrome oxidase subunit I and Wolbachia multiple sequencing typing genes were not congruent. In addition, Wolbachia was also detected outside the special bacteriocytes in two cryptic species by fluorescence in situ hybridization, indicating the horizontal transmission of Wolbachia. Our results indicate that members of Wolbachia are far from well explored.
DRIFT and Theoretical Studies of Ethylene/Ethane Separation on Flexible and Microporous [Cu2(2,3‐pyrazinedicarboxylate)2(pyrazine)]n
Authors: Kishida Keisuke , Watanabe Yumiko , Horike Satoshi , Watanabe Yoshihiro , Okumura Yoshikuni , Hijikata Yuh , Sakaki Shigeyoshi , Kitagawa Susumu 
Published: June 2014

AbstractInvited for the cover of this issue is the group of Susumu Kitagawa at Kyoto University. The cover image shows the adsorption‐based separation of ethylene from ethane by [Cu2(2,3‐pyrazinedicarboxylate)2(pyrazine)]n. The background is a view of the Oita chemical complex where cryogenic distillation of ethylene is conducted daily. Our research laboratory, belonging to Showa Denko, is located at this complex.
Simultaneous Detection of Homocysteine and Cysteine in the Presence of Ascorbic Acid and Glutathione Using a Nanocarbon Modified Electrode
Authors: Lee P. T. , Lowinsohn D. , Compton R. G. 
Published: June 2014

AbstractThe simultaneous electrochemical detection of homocysteine and cysteine using an absorbed ortho‐quinone species, catechol, at the nanocarbon modified glassy carbon electrode was achieved via 1,4‐Michael addition reaction. The detection was done in the presence and the absence of each other as well as with both glutathione and ascorbic acid present in order to investigate the selectivity of homocysteine and cysteine. A determination of homocysteine sensitivity is (0.882±0.296) nA nM−1 with a LOD of ca. 11 nM and cysteine sensitivity is (7.501±0.202) mA µM−1 with a LOD of ca. 5.0 µM within a range of 0–0.1 mM.
An Electrochemical Sensor for Reducing Sugars Based on a Glassy Carbon Electrode Modified with Electropolymerized Molecularly Imprinted Poly‐o‐phenylenediamine Film
Authors: Wang Qian , Paim Leonardo Lataro , Zhang Xiuhua , Wang Shengfu , Stradiotto Nelson Ramos 
Published: June 2014

AbstractAn electrochemical sensor based on electropolymerizing o‐phenylenediamine (o‐PD) on a glassy carbon electrode (GCE) was developed for determination of reducing sugars. The molecular imprinted sensor was tested by differential pulse voltammetry (DPV) to verify the changes in peak currents of hexacyanoferrate. Under the optimum analytical conditions, the current change was linear to the logarithm of glucose and fructose concentration from 0.25 to 25 µM. The detection limit of glucose and fructose were 0.185 µM and 0.173 µM, respectively. Besides, the applicability of the sensitive sensor has been successfully evaluated by determining reducing sugars in the samples from sugarcane industries.
Cytomorphological study of Scutellaria platystegia (Lamiaceae) in Iran
Authors: Ranjbar Massoud , Mahmoudi Chonour 
Published: June 2014

AbstractChromosome number, meiotic behaviour and morphological characters related to habit were studied in 10 populations of Scutellaria platystegia Juz. from S. sect. Lupulinaria native to Iran. All populations are diploid and has the chromosome number 2n = 2x = 22, which is consistent with the proposed base number of x = 11. This taxon displayed regular bivalent pairing and chromosome segregation at meiosis. However, some meiotic abnormalities observed included various degrees of fragmented chromosomes, laggards and bridges in anaphase I to telophase II, precocious division of centromeres in metaphase I or II, asynchronous nucleus and cytomixis. We evaluated and determined the population limits within S. platystegia, employing multivariant statistics. We found a striking association between meiotic behaviour and gross morphology. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Astragalus hakkianus a new species of Astragalus (Fabaceae) from N.W. Iran
Authors: Bagheri Ali , Rahiminejad Mohammad R. , Maassoumi Ali A. 
Published: June 2014

AbstractA new species of the genus Astragalus, namely A. hakkianus Bagheri, Maassoumi & Rahimin. is described and illustrated from NW Iran. It is most closely related to A. peresh­khoranicus Maassoumi & F. Ghahrem. and A. chehreganii Zarre & Podlech. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
A kinetic energy preserving nodal discontinuous Galerkin spectral element method
Authors: Gassner Gregor J. 
Published: June 2014

SUMMARYIn this work, we discuss the construction of a skew‐symmetric discontinuous Galerkin (DG) collocation spectral element approximation for the compressible Euler equations. Starting from the skew‐symmetric formulation of Morinishi, we mimic the continuous derivations on a discrete level to find a formulation for the conserved variables. In contrast to finite difference methods, DG formulations naturally have inter‐domain surface flux contributions due to the discontinuous nature of the approximation space. Thus, throughout the derivations we accurately track the influence of the surface fluxes to arrive at a consistent formulation also for the surface terms. The resulting novel skew‐symmetric method differs from the standard DG scheme by additional volume terms. Those volume terms have a special structure and basically represent the discretization error of the different product rules. We use the summation‐by‐parts (SBP) property of the Gauss–Lobatto‐based DG operator and show that the novel formulation is exactly conservative for the mass, momentum, and energy. Finally, an analysis of the kinetic energy balance of the standard DG discretization shows that because of aliasing errors, a nonzero transport source term in the evolution of the discrete kinetic energy mean value may lead to an inconsistent increase or decrease in contrast to the skew‐symmetric formulation. Furthermore, we derive a suitable interface flux that guarantees kinetic energy preservation in combination with the skew‐symmetric DG formulation. As all derivations require only the SBP property of the Gauss–Lobatto‐based DG collocation spectral element method operator and that the mass matrix is diagonal, all results for the surface terms can be directly applied in the context of multi‐domain diagonal norm SBP finite difference methods. Numerical experiments are conducted to demonstrate the theoretical findings. Copyright © 2014 John Wiley & Sons, Ltd.
Tones and numbers: A combined EEG–MEG study on the effects of musical expertise in magnitude comparisons of audiovisual stimuli
Authors: Paraskevopoulos Evangelos , Kuchenbuch Anja , Herholz Sibylle C. , Foroglou Nikolaos , Bamidis Panagiotis , Pantev Christo 
Published: June 2014

AbstractThis study investigated the cortical responses underlying magnitude comparisons of multisensory stimuli and examined the effect that musical expertise has in this process. The comparative judgments were based on a newly learned rule binding the auditory and visual stimuli within the context of magnitude comparisons: “the higher the pitch of the tone, the larger the number presented.” The cortical responses were measured by simultaneous MEG\EEG recordings and a combined source analysis with individualized realistic head models was performed. Musical expertise effects were investigated by comparing musicians to non‐musicians. Congruent audiovisual stimuli, corresponding to the newly learned rule, elicited activity in frontotemporal and occipital areas. In contrast, incongruent stimuli activated temporal and parietal regions. Musicians when compared with nonmusicians showed increased differences between congruent and incongruent stimuli in a prefrontal region, thereby indicating that music expertise may affect multisensory comparative judgments within a generalized representation of analog magnitude. Hum Brain Mapp 35:5389–5400, 2014. © 2014 Wiley Periodicals, Inc.
A modified POCS‐based reconstruction method for compressively sampled MR imaging
Authors: Shah Jawad , Qureshi Ijaz , Omer Hammad , Khaliq Amir 
Published: June 2014

ABSTRACTOne of the challenging tasks in the application of compressed sensing to magnetic resonance imaging is the reconstruction algorithm that can faithfully recover the MR image from randomly undersampled k‐space data. The nonlinear recovery algorithms based on iterative shrinkage start with a single initial guess and use soft‐thresholding to recover the original MR image from the partial Fourier data. This article presents a novel method based on projection onto convex set (POCS) algorithm but it takes two images and then randomly combines them at each iteration to estimate the original MR image. The performance of the proposed method is validated using the original data taken from the MRI scanner at St. Mary's Hospital, London. The experimental results show that the proposed method can reconstruct the original MR image from variable density undersampling scheme in less number of iterations and exhibits better performance in terms of improved signal‐to‐noise ratio, artifact power, and correlation as compared to the reconstruction through low‐resolution and POCS algorithms. © 2014 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 24, 203–207, 2014
Caudal vertebral body articular surface morphology correlates with functional tail use in anthropoid primates
Authors: Deane Andrew S. , Russo Gabrielle A. , Muchlinski Magdalena N. , Organ Jason M. 
Published: June 2014

ABSTRACTPrehensile tails, capable of suspending the entire body weight of an animal, have evolved in parallel in New World monkeys (Platyrrhini): once in the Atelinae (Alouatta, Ateles, Brachyteles, Lagothrix), and once in the Cebinae (Cebus, Sapajus). Structurally, the prehensile tails of atelines and cebines share morphological features that distinguish them from nonprehensile tails, including longer proximal tail regions, well‐developed hemal processes, robust caudal vertebrae resistant to higher torsional and bending stresses, and caudal musculature capable of producing higher contractile forces. The functional significance of shape variation in the articular surfaces of caudal vertebral bodies, however, is relatively less well understood. Given that tail use differs considerably among prehensile and nonprehensile anthropoids, it is reasonable to predict that caudal vertebral body articular surface area and shape will respond to use‐specific patterns of mechanical loading. We examine the potential for intervertebral articular surface contour curvature and relative surface area to discriminate between prehensile‐tailed and nonprehensile‐tailed platyrrhines and cercopithecoids. The proximal and distal intervertebral articular surfaces of the first (Ca1), transitional and longest caudal vertebrae were examined for individuals representing 10 anthropoid taxa with differential patterns of tail‐use. Study results reveal significant morphological differences consistent with the functional demands of unique patterns of tail use for all vertebral elements sampled. Prehensile‐tailed platyrrhines that more frequently use their tails in suspension (atelines) had significantly larger and more convex intervertebral articular surfaces than all nonprehensile‐tailed anthropoids examined here, although the intervertebral articular surface contour curvatures of large, terrestrial cercopithecoids (i.e., Papio sp.) converge on the ateline condition. Prehensile‐tailed platyrrhines that more often use their tails in tripodal bracing postures (cebines) are morphologically intermediate between atelines and nonprehensile tailed anthropoids. J. Morphol. 275:1300–1311, 2014. © 2014 Wiley Periodicals, Inc.
Retracted: Collective fit perceptions: A multilevel investigation of person–group fit with individual‐level and team‐level outcomes
Authors: Kristof‐Brown Amy L. , Seong Jee Young , Degeest David S. , Park Won‐Woo , Hong Doo‐Seung 
Published: June 2014

SummaryThis study describes a multilevel examination of person–group (PG) fit perceptions in a sample of 1023 individuals working in 92 teams at a private sector R&D firm. Using confirmatory factor analysis and multilevel random coefficient modeling, we provide evidence that perceptions of team‐level collective fit are unique from aggregated individual‐level PG fit perceptions at the individual and team levels. We demonstrate that collective values‐based and abilities‐based fit perceptions showed unique and positive relationships with team cohesion, team efficacy, and team performance, after accounting for aggregated individual perceptions of PG fit. Results also demonstrate that cohesion partially mediates the relationship between collective fit and team performance. Cross‐level effects were also supported, indicating that collective fit explains additional variance in individual‐level outcomes, beyond individual‐level PG fit perceptions. The usefulness of employing a multilevel approach to studying PG fit is discussed. Copyright © 2014 John Wiley & Sons, Ltd.
Peripheral nerve tractography in soft tissue tumors: A preliminary 3‐tesla diffusion tensor magnetic resonance imaging study
Authors: Kasprian Gregor , Amann Gabriele , Panotopoulos Joannis , Schmidt Manfred , Dominkus Martin , Trattnig Siegfried , Windhager Reinhard , Prayer Daniela , Nöbauer‐Huhmann Iris 
Published: June 2014

ABSTRACTIntroduction: This diffusion tensor magnetic resonance imaging (DTI) study aimed to clarify the relationship of peripheral nerves and soft tissue tumors (STTs) in 3D to optimize subsequent treatment. Methods: Twenty‐six consecutive STT patients (histologically malignant, n = 10; intermediate, n = 3; and benign, n = 13) underwent 3‐Tesla MRI using an echoplanar DTI sequence. Deterministic tractography was performed. Fractional anisotropy (FA) values were measured within peritumoral and distant regions of interest. Results: Tractography depicted the 3D course of the sciatic (n = 12), femoral (n = 2), tibial (n = 7), fibular (n = 2), median (n = 1), musculocutaneous (n = 1), and ulnar (n = 1) nerves in a regular (n = 8 of 18, 44.4%) or thinned (n = 7 of 18, 38.9%) fashion. The lowest peritumoral FA values, abrupt thinning, and/or complete discontinuity of trajectories were found in 2 cases with histologically proven tumoral nerve infiltration. Conclusions: DTI clarifies the 3D topography between major peripheral nerves and STTs and may be helpful in the assessment of peripheral nerve infiltration by malignant tumors. Muscle Nerve 51: 338–345, 2015
Low‐intensity running exercise enhances the capillary volume and pro‐angiogenic factors in the soleus muscle of type 2 diabetic rats
Authors: Kondo Hiroyo , Fujino Hidemi , Murakami Shinichiro , Tanaka Masayuki , Kanazashi Miho , Nagatomo Fumiko , Ishihara Akihiko , Roy Roland R. 
Published: June 2014

ABSTRACTIntroduction: We determined the effects of low‐intensity exercise on the three‐dimensional capillary structure and associated angiogenic factors in the soleus muscle of Goto‐Kakizaki (GK) diabetic rats. Methods: Four groups of male rats were studied: sedentary nondiabetic (Con), exercised nondiabetic control (Ex), sedentary GK, and exercised GK (GK+Ex). Rats in the Ex and GK+Ex groups were subjected to chronic low‐intensity running on a treadmill (15 m/min, 60 min/session, 5 sessions/week for 3 weeks). Results: Although mean capillary volume and diameter were lower in the GK compared with all other groups, low‐intensity exercise increased both of these measures in GK rats. Mitochondrial markers, i.e., SDH activity and PGC‐1α expression, and the levels of angiogenic factors were higher in the GK+Ex than all other groups. Exercise increased vascular endothelial growth factor (VEGF) protein levels and the VEGF‐to‐TSP‐1 ratio, an indicator of angiogenesis, in GK rats. Conclusions: Combined, the results indicate that low‐intensity exercise reduces some of the microcirculatory complications in type 2 diabetic muscles. Muscle Nerve 51: 391–399, 2015
Do we need readjustment of the biochemical parameters in first trimester combined aneuploidy screening test in women with polycystic ovary syndrome?
Authors: Karsli Mehmet Fatih , Gultekin Ismail Burak , Cakmak Bulent , Yeral Mahmut Ilkin , Seckin Kerem Doga , Alt𝚤nboga Orhan , Kucukozkan Tuncay 
Published: June 2014

What's already known about this topic?There are several clinical and experimental data suggesting an impaired decidual trophoblast invasion in pregnant women with polycystic ovary syndrome.What does this study add?The present study demonstrates significantly decreased serum levels of pregnancy‐associated plasma protein‐A and free β‐human chorionic gonadotropin in pregnant women with polycystic ovary syndrome who underwent first trimester screening test for aneuploidy.
Prenatal diagnosis and epidemiology of multicystic kidney dysplasia in Europe
Authors: Winding Louise , Loane Maria , Wellesley Diana , Addor Marie‐Claude , Arriola Larraitz , Bakker Marian K. , Bianchi Fabrizio , Calzolari Elisa , Gatt Miriam , Haeusler Martin , Lelong Nathalie , Mullaney Carmel , Scarano Gioacchino , Tucker David , Wiesel Awi , Garne Ester 
Published: June 2014

ABSTRACTObjectivesThe aim of this study is to describe the prenatal diagnosis and epidemiology of multicystic kidney dysplasia (MCKD).MethodsThe study is based on routinely collected data from a European database of major congenital anomalies including 13 registries with cases born in 1997–2006 and covering 1 458 552 births.ResultsThere were 601 MCKD cases giving an overall prevalence of 4.12 per 10 000 births with regional variation. In live births, 87% of cases had an isolated renal anomaly and 13% had associated major nonrenal anomalies (chromosomal, syndrome or other major anomalies). For the cases with isolated renal anomalies, 51/386 (11%) and 7/386 (2%) choose to terminate the pregnancy or resulted in an intrauterine fetal death, respectively. The prenatal detection rate was 88% in both unilateral and bilateral cases. Birth outcome differed with 92% of unilateral MCKD cases being liveborn compared with 33% of bilateral MCKD cases. For unilateral MCKD cases, 84% had an isolated renal anomaly compared with 51% of bilateral MCKD cases (p < 0.001).ConclusionsCases with unilateral MCKD are mainly liveborn, and only 16% have associated major malformations or a syndrome. Cases with bilateral MCKD are often associated with nonrenal major congenital anomalies or part of a syndrome, and only one third of bilateral MCKD cases in this study were liveborn. Prenatal detection rate of MCKD was high for both unilateral and bilateral cases. © 2014 John Wiley & Sons, Ltd.
Cdk5 phosphorylation of EFhd2 at S74 affects its calcium binding activity
Authors: Vázquez‐Rosa Edwin , Rodríguez‐Cruz Eva N. , Serrano Sybelle , Rodríguez‐Laureano Lucelenie , Vega Irving E. 
Published: June 2014

AbstractEFhd2 is a calcium binding protein, which is highly expressed in the central nervous system and associated with pathological forms of tau proteins in tauopathies. Previous phosphoproteomics studies and bioinformatics analysis suggest that EFhd2 may be phosphorylated. Here, we determine whether Cdk5, a hyperactivated kinase in tauopathies, phosphorylates EFhd2 and influence its known molecular activities. The results indicated that EFhd2 is phosphorylated by brain extract of the transgenic mouse CK‐p25, which overexpresses the Cdk5 constitutive activator p25. Consistently, in vitro kinase assays demonstrated that Cdk5, but not GSK3β, directly phosphorylates EFhd2. Biomass, tandem mass spectrometry, and mutagenesis analyses indicated that Cdk5 monophosphorylates EFhd2 at S74, but not the adjacent S76. Furthermore, Cdk5‐mediated phosphorylation of EFhd2 affected its calcium binding activity. Finally, a phospho‐specific antibody was generated against EFhd2 phosphorylated at S74 and was used to detect this phosphorylation event in postmortem brain tissue from Alzheimer's disease and normal‐aging control cases. Results demonstrated that EFhd2 is phosphorylated in vivo at S74. These results imply that EFhd2's physiological and/or pathological function could be regulated by its phosphorylation state.
Factors Influencing Facebook Usage and Facebook Addictive Tendency in University Students: The Role of Online Psychological Privacy and Facebook Usage Motivation
Authors: Hong Fu‐Yuan , Chiu Su‐Lin 
Published: June 2014

AbstractThere are few studies analysing the influence of personal traits and motivation factors on Facebook usage and Facebook addictive tendency as seen in university students. In this study, 225 Taiwanese university students completed a questionnaire to determine their online psychological privacy scale, Facebook usage motivation scale, Facebook usage scale and Facebook addictive tendency scale, in order to evaluate the items that can be conceptualized as the effect of university students' online psychological privacy personal trait and motive factors, and Facebook usage motivation with respect to Facebook usage and Facebook addictive tendency. The study found that a desire for more online psychological privacy correlates with a stronger motivation to use Facebook and more Facebook usage behaviour among university students who may become high‐risk groups for Facebook addictive tendency. The study found that a desire for or an acceptance of a lower online psychological privacy correlates with a stronger motivation to use Facebook among university students who may have more Facebook usage behaviour. This study can help understand university students' Facebook usage and Facebook addictive tendency and provide feature indicators for those who may become high‐risk groups for Facebook addictive tendency. Finally, this study conducts discussion and proposes relevant suggestions for future study. Copyright © 2014 John Wiley & Sons, Ltd.