bluuebunny/crossref_metadata_2025_split huggingface dataset:
Three TaFAR genes function in the biosynthesis of primary alcohols and the response to abiotic stresses in Triticum aestivum
Authors: Wang Meiling , Wang Yong , Wu Hongqi , Xu Jing , Li Tingting , Hegebarth Daniela , Jetter Reinhard , Chen Letian , Wang Zhonghua 
Published: April 2016

AbstractCuticular waxes play crucial roles in protecting plants against biotic and abiotic stresses. They are complex mixtures of very-long-chain fatty acids and their derivatives, including C20–C32 fatty alcohols. Here, we report the identification of 32 FAR-like genes and the detailed characterization of TaFAR2, TaFAR3 and TaFAR4, wax biosynthetic genes encoding fatty acyl-coenzyme A reductase (FAR) in wheat leaf cuticle. Heterologous expression of the three TaFARs in wild-type yeast and mutated yeast showed that TaFAR2, TaFAR3 and TaFAR4 were predominantly responsible for the accumulation of C18:0, C28:0 and C24:0 primary alcohols, respectively. Transgenic expression of the three TaFARs in tomato fruit and Arabidopsis cer4 mutant led to increased production of C22:0–C30:0 primary alcohols. GFP-fusion protein injection assay showed that the three encoded TaFAR proteins were localized to the endoplasmic reticulum (ER), the site of wax biosynthesis. The transcriptional expression of the three TaFAR genes was induced by cold, salt, drought and ABA. Low air humidity led to increased expression of TaFAR genes and elevated wax accumulation in wheat leaves. Collectively, these data suggest that TaFAR2, TaFAR3 and TaFAR4 encode active alcohol-forming FARs involved in the synthesis of primary alcohol in wheat leaf and the response to environmental stresses.
Enterobacter cloacae inhibits human norovirus infectivity in gnotobiotic pigs
Authors: Lei Shaohua , Samuel Helen , Twitchell Erica , Bui Tammy , Ramesh Ashwin , Wen Ke , Weiss Mariah , Li Guohua , Yang Xingdong , Jiang Xi , Yuan Lijuan 
Published: April 2016

AbstractHuman noroviruses (HuNoVs) are the leading cause of epidemic gastroenteritis worldwide. Study of HuNoV biology has been hampered by the lack of an efficient cell culture system. Recently, enteric commensal bacteria Enterobacter cloacae has been recognized as a helper in HuNoV infection of B cells in vitro. To test the influences of E. cloacae on HuNoV infectivity and to determine whether HuNoV infects B cells in vivo, we colonized gnotobiotic pigs with E. cloacae and inoculated pigs with 2.74 × 104 genome copies of HuNoV. Compared to control pigs, reduced HuNoV shedding was observed in E. cloacae colonized pigs, characterized by significantly shorter duration of shedding in post-inoculation day 10 subgroup and lower cumulative shedding and peak shedding in individual pigs. Colonization of E. cloacae also reduced HuNoV titers in intestinal tissues and in blood. In both control and E. cloacae colonized pigs, HuNoV infection of enterocytes was confirmed, however infection of B cells was not observed in ileum and the entire lamina propria in sections of duodenum, jejunum and ileum were HuNoV-negative. In summary, E. cloacae inhibited HuNoV infectivity and B cells were not a target cell type for HuNoV in gnotobiotic pigs, with or without E. cloacae colonization.
Excitation of propagating spin waves in ferromagnetic nanowires by microwave voltage-controlled magnetic anisotropy
Authors: Verba Roman , Carpentieri Mario , Finocchio Giovanni , Tiberkevich Vasil , Slavin Andrei 
Published: April 2016

AbstractThe voltage-controlled magnetic anisotropy (VCMA) effect, which manifests itself as variation of anisotropy of a thin layer of a conductive ferromagnet on a dielectric substrate under the influence of an external electric voltage, can be used for the development of novel information storage and signal processing devices with low power consumption. Here it is demonstrated by micromagnetic simulations that the application of a microwave voltage to a nanosized VCMA gate in an ultrathin ferromagnetic nanowire results in the parametric excitation of a propagating spin wave, which could serve as a carrier of information. The frequency of the excited spin wave is twice smaller than the frequency of the applied voltage while its amplitude is limited by 2 mechanisms: (i) the so-called “phase mechanism” described by the Zakharov-L’vov-Starobinets “S-theory” and (ii) the saturation mechanism associated with the nonlinear frequency shift of the excited spin wave. The developed extension of the “S-theory”, which takes into account the second limitation mechanism, allowed us to estimate theoretically the efficiency of the parametric excitation of spin waves by the VCMA effect.
A specialized face-processing model inspired by the organization of monkey face patches explains several face-specific phenomena observed in humans
Authors: Farzmahdi Amirhossein , Rajaei Karim , Ghodrati Masoud , Ebrahimpour Reza , Khaligh-Razavi Seyed-Mahdi 
Published: April 2016

AbstractConverging reports indicate that face images are processed through specialized neural networks in the brain –i.e. face patches in monkeys and the fusiform face area (FFA) in humans. These studies were designed to find out how faces are processed in visual system compared to other objects. Yet, the underlying mechanism of face processing is not completely revealed. Here, we show that a hierarchical computational model, inspired by electrophysiological evidence on face processing in primates, is able to generate representational properties similar to those observed in monkey face patches (posterior, middle and anterior patches). Since the most important goal of sensory neuroscience is linking the neural responses with behavioral outputs, we test whether the proposed model, which is designed to account for neural responses in monkey face patches, is also able to predict well-documented behavioral face phenomena observed in humans. We show that the proposed model satisfies several cognitive face effects such as: composite face effect and the idea of canonical face views. Our model provides insights about the underlying computations that transfer visual information from posterior to anterior face patches.
Social Presence Diminishes Contagious Yawning in the Laboratory
Authors: Gallup Andrew , Church Allyson M. , Miller Heather , Risko Evan F. , Kingstone Alan 
Published: April 2016

AbstractContagious yawning may be a useful measure of social psychological functioning and thus it is important to evaluate the variables influencing its expression in laboratory settings. Previous research has documented that humans yawn less frequently in crowded environments and when under direct observation, but the impact of social presence on contagious yawning remains unknown. Here we present the first study to systematically alter the degree of social presence experienced by participants in the laboratory to determine its effect on contagious yawning frequency. Our results demonstrate that both implied and actual social presence significantly diminish yawn contagion in comparison to a control condition, indicating a key social component to contagious yawning. These findings provide a framework for pursuing additional research investigating the social factors influencing contagious yawning, while also offering applications for measuring this response in laboratory settings.
Direct observations of ice seasonality reveal changes in climate over the past 320–570 years
Authors: Sharma Sapna , Magnuson John J. , Batt Ryan D. , Winslow Luke A. , Korhonen Johanna , Aono Yasuyuki 
Published: April 2016

AbstractLake and river ice seasonality (dates of ice freeze and breakup) responds sensitively to climatic change and variability. We analyzed climate-related changes using direct human observations of ice freeze dates (1443–2014) for Lake Suwa, Japan, and of ice breakup dates (1693–2013) for Torne River, Finland. We found a rich array of changes in ice seasonality of two inland waters from geographically distant regions: namely a shift towards later ice formation for Suwa and earlier spring melt for Torne, increasing frequencies of years with warm extremes, changing inter-annual variability, waning of dominant inter-decadal quasi-periodic dynamics, and stronger correlations of ice seasonality with atmospheric CO2 concentration and air temperature after the start of the Industrial Revolution. Although local factors, including human population growth, land use change, and water management influence Suwa and Torne, the general patterns of ice seasonality are similar for both systems, suggesting that global processes including climate change and variability are driving the long-term changes in ice seasonality.
Large-scale identification of small noncoding RNA with strand-specific deep sequencing and characterization of a novel virulence-related sRNA in Brucella melitensis
Authors: Zhong Zhijun , Xu Xiaoyang , Li Xinran , Liu Shiwei , Lei Shuangshuang , Yang Mingjuan , Yu Jiuxuan , Yuan Jiuyun , Ke Yuehua , Du Xinying , Wang Zhoujia , Ren Zhihua , Peng Guangneng , Wang Yufei , Chen Zeliang 
Published: April 2016

AbstractBrucella is the causative agent of brucellosis, a worldwide epidemic zoonosis. Small noncoding RNAs (sRNAs) are important modulators of gene expression and involved in pathogenesis and stress adaptation of Brucella. In this study, using a strand-specific RNA deep-sequencing approach, we identified a global set of sRNAs expressed by B. melitensis 16M. In total, 1321 sRNAs were identified, ranging from 100 to 600 nucleotides. These sRNAs differ in their expression levels and strand and chromosomal distributions. The role of BSR0441, one of these sRNAs, in the virulence of B. melitensis 16M was further characterized. BSR0441 was highly induced during the infection of macrophages and mice. The deletion mutant of BSR0441 showed significantly reduced spleen colonization in the middle and late phases of infection. The expression of the BSR0441 target mRNA genes was also altered in the BSR0441 mutant strain during macrophage and mice infection, which is consistent with its reduced intracellular survival capacity. In summary, Brucella encodes a large number of sRNAs, which may be involved in the stress adaptation and virulence of Brucella. Further investigation of these regulators will extend our understanding of the Brucella pathogenesis mechanism and the interactions between Brucella and its hosts.
Metabolomics reveals an involvement of pantothenate for male production responding to the short-day stimulus in the water flea, Daphnia pulex
Authors: Toyota Kenji , Gavin Alex , Miyagawa Shinichi , Viant Mark R. , Iguchi Taisen 
Published: April 2016

AbstractUnder favorable conditions, the micro-crustaceanDaphnia pulexproduces female offspring by parthenogenesis, whereas under unfavorable conditions, they produce male offspring to induce sexual reproduction (environmental sex determination: ESD). We recently established a suitable system for ESD studies usingD. pulexWTN6 strain, in which the sex of the offspring can be regulated by alterations in day-length; long-day and short-day conditions can induce female and male offspring, respectively. Taking advantage of this system, we have already demonstrated that methyl farnesoate (MF) synthesis is necessary for male offspring production and identified ionotropic glutamate receptors as an upstream regulator of MF signaling. Despite these findings, the molecular mechanisms associated with MF signaling have not yet been well elucidated. In this study, we analyzed the whole metabolic profiles of mother daphnids reared under long-day (female-producing) and short-day (male-producing) conditions and discovered that pantothenate (vitamin B5), a known precursor to coenzyme A, was significantly accumulated in response to the short-day condition. To confirm the innate role of pantothenate inD. pulex, this metabolite was administered to mother daphnids resulting in a significantly increased proportion of male offspring producing mothers. This study provides novel insights of the metabolic mechanisms of the ESD system inD. pulex.
Identification of critical residues in Hepatitis E virus macro domain involved in its interaction with viral methyltransferase and ORF3 proteins
Authors: Anang Saumya , Subramani Chandru , Nair Vidya P. , Kaul Sheetal , Kaushik Nidhi , Sharma Chandresh , Tiwari Ashutosh , Ranjith-Kumar CT , Surjit Milan 
Published: April 2016

AbstractHepatitis E virus (HEV) is a major cause of hepatitis in normal and organ transplant individuals. HEV open reading frame-1 encodes a polypeptide comprising of the viral nonstructural proteins as well as domains of unknown function such as the macro domain (X-domain), V, DUF3729 and Y. The macro domain proteins are ubiquitously present from prokaryotes to human and in many positive-strand RNA viruses, playing important roles in multiple cellular processes. Towards understanding the function of the HEV macro domain, we characterized its interaction partners among other HEV encoded proteins. Here, we report that the HEV X-domain directly interacts with the viral methyltransferase and the ORF3 proteins. ORF3 association with the X-domain was mediated through two independent motifs, located within its N-terminal 35aa (amino acids) and C-terminal 63-123aa. Methyltransferase interaction domain was mapped to N-terminal 30-90aa. The X-domain interacted with both ORF3 and methyltransferase through its C-terminal region, involving 66th,67th isoleucine and 101st,102nd leucine, conserved across HEV genotypes. Furthermore, ORF3 and methyltransferase competed with each other for associating with the X-domain. These findings provide molecular understanding of the interaction between the HEV macro domain, methyltransferase and ORF3, suggesting an important role of the macro domain in the life cycle of HEV.
Non-invasive screening for early Alzheimer’s disease diagnosis by a sensitively immunomagnetic biosensor
Authors: Li Shan-Shan , Lin Chih-Wen , Wei Kuo-Chen , Huang Chiung-Yin , Hsu Po-Hung , Liu Hao-Li , Lu Yu-Jen , Lin Sheng-Chi , Yang Hung-Wei , Ma Chen-Chi M. 
Published: April 2016

AbstractAmyloid-beta peptide 1–42 (Aβ42) is considered as a reliable biomarker for the early diagnosis of Alzheimer’s disease (AD). Thus, it is urgent to develop a simple and efficient method for the detection of Aβ42. In this work, a reusable biosensor based on magnetic nitrogen-doped graphene (MNG) modified Au electrode for the detection of Aβ42 has been developed. The antibodies of Aβ 1–28 (Aβab) are used as the specific biorecognition element for Aβ42 that were conjugated on the surface of MNG. In the presence of magnetic nanoparticles on MNG, the electrode coating material, the biosensor can be quickly constructed, without requiring an electrode drying process, which reduce the analysis time and is convenient for proceeding to detection. The reusable biosensor with good reproducibility and stability was linear within the range from 5 pg mL−1 to 800 pg mL−1, covering the cut-off level of Aβ42 and a detection limit of 5 pg mL−1 had been achieved. Furthermore, the fabricated biosensor for Aβ42 detection not only improves the detection performance but also reduces the cost and shortens the response time, demonstrating its potential in diagnosing applications.
Complete Coherent Control of a Quantum Dot Strongly Coupled to a Nanocavity
Authors: Dory Constantin , Fischer Kevin A. , Müller Kai , Lagoudakis Konstantinos G. , Sarmiento Tomas , Rundquist Armand , Zhang Jingyuan L. , Kelaita Yousif , Vučković Jelena 
Published: April 2016

AbstractStrongly coupled quantum dot-cavity systems provide a non-linear configuration of hybridized light-matter states with promising quantum-optical applications. Here, we investigate the coherent interaction between strong laser pulses and quantum dot-cavity polaritons. Resonant excitation of polaritonic states and their interaction with phonons allow us to observe coherent Rabi oscillations and Ramsey fringes. Furthermore, we demonstrate complete coherent control of a quantum dot-photonic crystal cavity based quantum-bit. By controlling the excitation power and phase in a two-pulse excitation scheme we achieve access to the full Bloch sphere. Quantum-optical simulations are in good agreement with our experiments and provide insight into the decoherence mechanisms.
Resting-state abnormalities in amnestic mild cognitive impairment: a meta-analysis
Authors: Lau W K W , Leung M-K , Lee T M C , Law A C K 
Published: April 2016

AbstractAmnestic mild cognitive impairment (aMCI) is a prodromal stage of Alzheimer’s disease (AD). As no effective drug can cure AD, early diagnosis and intervention for aMCI are urgently needed. The standard diagnostic procedure for aMCI primarily relies on subjective neuropsychological examinations that require the judgment of experienced clinicians. The development of other objective and reliable aMCI markers, such as neural markers, is therefore required. Previous neuroimaging findings revealed various abnormalities in resting-state activity in MCI patients, but the findings have been inconsistent. The current study provides an updated activation likelihood estimation meta-analysis of resting-state functional magnetic resonance imaging (fMRI) data on aMCI. The authors searched on the MEDLINE/PubMed databases for whole-brain resting-state fMRI studies on aMCI published until March 2015. We included 21 whole-brain resting-state fMRI studies that reported a total of 156 distinct foci. Significant regional resting-state differences were consistently found in aMCI patients relative to controls, including the posterior cingulate cortex, right angular gyrus, right parahippocampal gyrus, left fusiform gyrus, left supramarginal gyrus and bilateral middle temporal gyri. Our findings support that abnormalities in resting-state activities of these regions may serve as neuroimaging markers for aMCI.
Characterization of Drosophila CMP-sialic acid synthetase activity reveals unusual enzymatic properties
Authors: Mertsalov Ilya B. , Novikov Boris N. , Scott Hilary , Dangott Lawrence , Panin Vladislav M. 
Published: April 2016

CMP-sialic acid synthetase (CSAS) is a key enzyme of the sialylation pathway. CSAS produces the activated sugar donor, CMP-sialic acid, which serves as a substrate for sialyltransferases to modify glycan termini with sialic acid. Unlike other animal CSASs that normally localize in the nucleus, Drosophila melanogaster CSAS (DmCSAS) localizes in the cell secretory compartment, predominantly in the Golgi, which suggests that this enzyme has properties distinct from those of its vertebrate counterparts. To test this hypothesis, we purified recombinant DmCSAS and characterized its activity in vitro. Our experiments revealed several unique features of this enzyme. DmCSAS displays specificity for N-acetylneuraminic acid as a substrate, shows preference for lower pH and can function with a broad range of metal cofactors. When tested at a pH corresponding to the Golgi compartment, the enzyme showed significant activity with several metal cations, including Zn2+, Fe2+, Co2+ and Mn2+, whereas the activity with Mg2+ was found to be low. Protein sequence analysis and site-specific mutagenesis identified an aspartic acid residue that is necessary for enzymatic activity and predicted to be involved in co-ordinating a metal cofactor. DmCSAS enzymatic activity was found to be essential in vivo for rescuing the phenotype of DmCSAS mutants. Finally, our experiments revealed a steep dependence of the enzymatic activity on temperature. Taken together, our results indicate that DmCSAS underwent evolutionary adaptation to pH and ionic environment different from that of counterpart synthetases in vertebrates. Our data also suggest that environmental temperatures can regulate Drosophila sialylation, thus modulating neural transmission.
Sexual dimorphism in the osmopressor response following water ingestion
Authors: Mendonca Goncalo V. , Teodósio Carolina , Lucena Rui , Pereira Fernando D. 
Published: April 2016

There is conflicting evidence as to whether water drinking elicits a pressor response in healthy young adults. The inclusion of a variable number of women may have contributed to the discrepancies found in past research. Thus, we aimed at exploring whether the osmopressor response follows a sexually dimorphic pattern. In a randomized fashion, 31 healthy adults (16 men; 15 women, aged 18–40 years) ingested 50 and 500 ml of water before completing a resting protocol on two separate days. Arterial blood pressure, heart rate and spectral heart rate variability were measured in the seated position at pre- and post-25 min of water ingestion. Women responded to 500 ml of water with a greater proportion of change in diastolic and mean arterial pressure (MAP) (P&lt;0.05). Conversely, the percent change in systolic blood pressure (SBP) and heart rate was not different between sexes after 500 ml of water. Overall, women demonstrated lower blood pressure, but higher resting heart rate compared with men (P&lt;0.05). In contrast, heart rate variability was similar between sexes before and after ingesting either volume of water. There was a bradycardic effect of water and, irrespectively of sex; this was accompanied by increased high frequency power (HF) (P&lt;0.05). We conclude that women display a greater magnitude of pressor response than men post-water ingestion. Accordingly, we provide direct evidence of sexual dimorphism in the haemodynamic response to water intake in young healthy adults.
Management of Persistent Cognitive Symptoms After Sport-Related Concussion
Authors: Sohlberg McKay Moore , Ledbetter Alexander K. 
Published: April 2016

Purpose
This case review examines treatments speech-language pathologists at our clinic delivered to middle school, high school, and college students for the management of persistent cognitive symptoms after sport-related concussion. The goal is to examine a range of treatment options, describe clinical rationale for selecting those treatments, and report outcomes in order to identify feasible interventions for systematic evaluation through efficacy research.

Method
Review of clinic intake data identified 63 cases referred for cognitive rehabilitation over a 36-month period. Twenty-four cases (14 women and 10 men) met selection criteria, including documented sport-related concussion, postconcussion symptoms persisting at least 2 months with deleterious effect on school performance, and enrollment in secondary or postsecondary education. The authors independently coded demographics, treatment approaches, functional goal domains, and outcomes.

Results
Treatment approaches fell into 4 broad categories: direct attention training, metacognitive strategy training, training assistive technology for cognition, and psychoeducational supports. Eighty-three percent of clients achieved self-selected functional goals.

Conclusions
Research has focused primarily on return to play and provision of academic accommodations in the initial weeks following concussion. Findings from this case series suggest that speech-language pathologists can deliver individualized interventions that lead to positive clinical outcomes. The authors hope findings encourage efficacy research.