bluuebunny/crossref_metadata_2025_split huggingface dataset:
Air-assisted atomization of liquid jets in varying levels of turbulence
Authors: Kourmatzis A. , Masri A. R. 
Published: December 2014

AbstractAir-assisted primary atomization is investigated in a configuration where liquid is injected in a turbulent gaseous jet flow both within as well as outside of the potential core. Cases are studied where the injection point is moved within the flow to maintain a range of constant gaseous mean velocities but changing local fluctuating velocity root-mean-square (r.m.s.) levels. Over a range of mean conditions, this allows for a systematic understanding of both the effects of gas-phase turbulence and mean shear on primary break-up independently. Extensive data is obtained and analysed from laser Doppler anemometry/phase Doppler anemometry, high-speed microscopic backlit imaging and advanced image processing. It is found that the ratio of the turbulent Weber number $\mathit{We}^{\prime }$ to the mean Weber number $\mathit{We}$ is a relevant parameter as is the turbulence intensity. The primary break-up length is found to be heavily influenced not only by the mean velocity, but also by the turbulence level and the mass fuel to air ratio. Above a particular threshold intensity level the break-up time changes in proportion to the change in the integral time scale of the flow. In addition, it is found that regardless of diameter and turbulent flow conditions at the liquid jet, the final size of ligaments converges to a value which is of the order of the measured primary instability wavelength (${\it\lambda}_{1}$). In contrast, cases of different turbulence intensity show the mean of droplet sizes diverging as the spray is advected downstream and this is because droplets are generated from ligaments, the latter of which are subjected both to Rayleigh–Taylor instabilities and turbulent fluctuations. This contribution, for the first time, examines the theoretical applicability of the Rayleigh–Taylor instability in flows where the turbulence is substantial with respect to the mean flow. It is shown that for high turbulence intensities a full theoretical reconstruction of the measured final droplet size distribution is possible from a probability density function of model Rayleigh–Taylor wavelengths (${\it\lambda}_{RT}$). In agreement with the literature (Varga et al. J. Fluid Mech., vol. 497, 2003, pp. 405–434), mean droplet sizes are found to be equal to a mean theoretical Rayleigh–Taylor wavelength normalized by a particular constant value. This, however, is only true for local turbulence intensities less than ${\sim}25\,\%$, or for ratios of the turbulent Weber number to mean Weber number ($\mathit{We}^{\prime }/\mathit{We}$) of less than ${\sim}6\,\%$. Above this, the normalization value is no longer constant, but increases with $\mathit{We}^{\prime }/\mathit{We}$. Finally, the instability wavelengths can be used as part of an approximation that estimates the total number of objects formed after break-up, where the object number is found to be dictated by a balance of both mean flow conditions and local turbulence.
The linear stability of a Stokes layer subjected to high-frequency perturbations
Authors: Thomas Christian , Blennerhassett P. J. , Bassom Andrew P. , Davies Christopher 
Published: December 2014

AbstractQuantitative results for the linear stability of planar Stokes layers subject to small, high-frequency perturbations are obtained for both a narrow channel and a flow approximating the classical semi-infinite Stokes layer. Previous theoretical and experimental predictions of the critical Reynolds number for the classical flat Stokes layer have differed widely with the former exceeding the latter by a factor of two or three. Here it is demonstrated that only a 1 % perturbation, at an appropriate frequency, to the nominal sinusoidal wall motion is enough to result in a reduction of the theoretical critical Reynolds number of as much as 60 %, bringing the theoretical conditions much more in line with the experimentally reported values. Furthermore, within the various experimental observations there is a wide variation in reported critical conditions and the results presented here may provide a new explanation for this behaviour.
Effect of crotamine, a cell-penetrating peptide, on blastocyst production and gene expression of in vitro fertilized bovine embryos
Authors: Campelo Iana S. , Pereira Alexsandra F. , Alcântara-Neto Agostinho S. , Canel Natalia G. , Souza-Fabjan Joanna M.G. , Teixeira Dárcio I.A. , Camargo Luiz S.A. , Melo Luciana M. , Rádis-Baptista Gandhi , Salamone Daniel F. , Freitas Vicente J.F. 
Published: December 2014

SummaryThe present study investigated the effects of crotamine, a cell-penetrating peptide from rattlesnake venom, at different exposure times and concentrations, on both developmental competence and gene expression (ATP1A1, AQP3, GLUT1 and GLUT3) of in vitro fertilized (IVF) bovine embryos. In Experiment 1, presumptive zygotes were exposed to 0.1 μM crotamine for 6, 12 or 24 h and control groups (vehicle and IVF) were included. In Experiment 2, presumptive zygotes were exposed to 0 (vehicle), 0.1, 1 and 10 μM crotamine for 24 h. Additionally, to visualize crotamine uptake, embryos were exposed to rhodamine B-labelled crotamine and subjected to confocal microscopy. In Experiment 1, no difference (P > 0.05) was observed among different exposure times and control groups for cleavage and blastocyst rates and total cells number per blastocyst. Within each exposure time, mRNA levels were similar (P > 0.05) in embryos cultured with or without crotamine. In Experiment 2, concentrations as high as 10 μM crotamine did not affect (P > 0.05) the blastocyst rate. Crotamine at 0.1 and 10 μM did not alter mRNA levels when compared with the control (P > 0.05). Remarkably, only 1 μM crotamine decreased both ATP1A1 and AQP3 expression levels relative to the control group (P < 0.05). Also, it was possible to visualize the intracellular localization of crotamine. These results indicate that crotamine can translocate intact IVF bovine embryos and its application in the culture medium is possible at concentrations from 0.1–10 μM for 6–24 h.
An infant with out-of-hospital cardiac arrest secondary to enteroviral myocarditis surviving up to cardiac transplantation
Authors: McGovern Eimear , Ryan Ethel , McMahon Colin J. 
Published: December 2014

AbstractWe report the case of a 13-day-old infant with enteroviral myocarditis surviving an out-of-hospital cardiac arrest. She underwent orthotopic cardiac transplantation three months later. A year after the transplantation, she is alive and well. Enteroviral infection is common in neonates with high mortality in cases of enteroviral myocarditis. Cardiac transplantation is a treatment option for infants who fail to recover and remain dependent on inotropic support. This is the first report of an infant with out-of-hospital cardiac arrest secondary to enteroviral myocarditis surviving up to cardiac transplantation.
Accessing pension resources: the right to equality inside and out of the labour market
Authors: Strauss Kendra 
Published: December 2014

AbstractPensions constitute an important link, in many welfare regimes, between processes of social categorisation and labour market segmentation over the life-course. Pensions also reveal how socio-economic rights are defined in relation to normative and ideological categories (such as gender, class and race), how (and for whom) the state prioritises their distribution, and what these processes reveal about notions of equality and their political and legal institutionalisation. In this paper, I argue that pensions, especially but not only occupational pensions, therefore fall within the ambit of a broad conception of labour law; they should be of interest to feminist legal scholars not solely because of their linkages to paid employment, however, but because of their relationship with the organisation of both production and social reproduction – and the evolution of norms of equality across these domains.
Assessing the Stability of Psychopathic Traits: Adolescent Outcomes in a Six-Year Follow-Up
Authors: López-Romero Laura , Romero Estrella , Villar Paula 
Published: December 2014

AbstractPrevious research has shown the relevance of psychopathic traits as predictors of severe and persistent antisocial behavior. Given that personality traits refer to developmental constructs, the main purposes of this study were to analyze the stability of psychopathic traits from childhood to adolescence, and to examine differential outcomes derived from distinctive pathways of stability and change. Data was collected in a Spanish sample of 138 children aged 6–11 at the onset of the study (T1), and 12–17 in the subsequent follow-up conducted 6 years later (T2). The stability of psychopathic traits was assessed in terms of differential continuity (rank-order), absolute stability (mean-level) and individual-level change (Reliable Change Index). Results confirmed that psychopathic traits remained moderately to highly stable from childhood to adolescence (p < .001). There were, however, some differences depending on the informant (parents vs. teachers) and the particular assessment method used (rank order vs. mean-level and RCI). A stable high and an increasing developmental pattern of psychopathic traits were related with severe adolescent behavioral and psychosocial problems (ŋ² = .10–.36). These results support the usefulness of youth psychopathic personality as a developmental construct, and highlight its relevance as a predictor of long-lasting maladjustment, with relevant implications in terms of prevention and treatment.
New simulation model for bone formation markers in osteoporosis patients treated with once-weekly teriparatide
Authors: Tanaka Sakae , Adachi Taiji , Kuroda Tatsuhiko , Nakamura Toshitaka , Shiraki Masataka , Sugimoto Toshitsugu , Takeuchi Yasuhiro , Saito Mitsuru , Bilezikian John P 
Published: December 2014

AbstractDaily 20-μg and once-weekly 56.5-μg teriparatide (parathyroid hormone 1–34) treatment regimens increase bone mineral density (BMD) and prevent fractures, but changes in bone turnover markers differ between the two regimens. The aim of the present study was to explain changes in bone turnover markers using once-weekly teriparatide with a simulation model. Temporary increases in bone formation markers and subsequent decreases were observed during once-weekly teriparatide treatment for 72 weeks. These observations support the hypothesis that repeated weekly teriparatide administration stimulates bone remodeling, replacing old bone with new bone and leading to a reduction in the active remodeling surface. A simulation model was developed based on the iterative remodeling cycle that occurs on residual old bone. An increase in bone formation and a subsequent decrease were observed in the preliminary simulation. For each fitted time point, the predicted value was compared to the absolute values of the bone formation and resorption markers and lumbar BMD. The simulation model strongly matched actual changes in bone turnover markers and BMD. This simulation model indicates increased bone formation marker levels in the early stage and a subsequent decrease. It is therefore concluded that remodeling-based bone formation persisted during the entire treatment period with once-weekly teriparatide.
Comparative metagenomic and metatranscriptomic analyses of microbial communities in acid mine drainage
Authors: Chen Lin-xing , Hu Min , Huang Li-nan , Hua Zheng-shuang , Kuang Jia-liang , Li Sheng-jin , Shu Wen-sheng 
Published: December 2014

Abstract
The microbial communities in acid mine drainage have been extensively studied to reveal their roles in acid generation and adaption to this environment. Lacking, however, are integrated community- and organism-wide comparative gene transcriptional analyses that could reveal the response and adaptation mechanisms of these extraordinary microorganisms to different environmental conditions. In this study, comparative metagenomics and metatranscriptomics were performed on microbial assemblages collected from four geochemically distinct acid mine drainage (AMD) sites. Taxonomic analysis uncovered unexpectedly high microbial biodiversity of these extremely acidophilic communities, and the abundant taxa of Acidithiobacillus, Leptospirillum and Acidiphilium exhibited high transcriptional activities. Community-wide comparative analyses clearly showed that the AMD microorganisms adapted to the different environmental conditions via regulating the expression of genes involved in multiple in situ functional activities, including low-pH adaptation, carbon, nitrogen and phosphate assimilation, energy generation, environmental stress resistance, and other functions. Organism-wide comparative analyses of the active taxa revealed environment-dependent gene transcriptional profiles, especially the distinct strategies used by Acidithiobacillus ferrivorans and Leptospirillum ferrodiazotrophum in nutrients assimilation and energy generation for survival under different conditions. Overall, these findings demonstrate that the gene transcriptional profiles of AMD microorganisms are closely related to the site physiochemical characteristics, providing clues into the microbial response and adaptation mechanisms in the oligotrophic, extremely acidic environments.
Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides
Authors: Drees Y. , Li Z. W. , Ricci A. , Rotter M. , Schmidt W. , Lamago D. , Sobolev O. , Rütt U. , Gutowski O. , Sprung M. , Piovano A. , Castellan J. P. , Komarek A. C. 
Published: December 2014

AbstractThe magnetic excitations in the cuprate superconductors might be essential for an understanding of high-temperature superconductivity. In these cuprate superconductors the magnetic excitation spectrum resembles an hour-glass and certain resonant magnetic excitations within are believed to be connected to the pairing mechanism, which is corroborated by the observation of a universal linear scaling of superconducting gap and magnetic resonance energy. So far, charge stripes are widely believed to be involved in the physics of hour-glass spectra. Here we study an isostructural cobaltate that also exhibits an hour-glass magnetic spectrum. Instead of the expected charge stripe order we observe nano phase separation and unravel a microscopically split origin of hour-glass spectra on the nano scale pointing to a connection between the magnetic resonance peak and the spin gap originating in islands of the antiferromagnetic parent insulator. Our findings open new ways to theories of magnetic excitations and superconductivity in cuprate superconductors.
Magnetic structure and Magnetic transport Properties of Graphene Nanoribbons With Sawtooth Zigzag Edges
Authors: Wang D. , Zhang Z. , Zhu Z. , Liang B. 
Published: December 2014

AbstractThe magnetic structure and magnetic transport properties of hydrogen-passivated sawtooth zigzag-edge graphene nanoribbons (STGNRs) are investigated theoretically. It is found that all-sized ground-state STGNRs are ferromagnetic and always feature magnetic semiconductor properties, whose spin splitting energy gap Eg changes periodically with the width of STGNRs. More importantly, for the STGNR based device, the dual spin-filtering effect with the perfect (100%) spin polarization and high-performance dual spin diode effect with a rectification ratio about 1010 can be predicted. Particularly, a highly effective spin-valve device is likely to be realized, which displays a giant magnetoresistace (MR) approaching 1010%, which is three orders magnitude higher than the value predicted based on the zigzag graphene nanoribbons and six orders magnitude higher than previously reported experimental values for the MgO tunnel junction. Our findings suggest that STGNRs might hold a significant promise for developing spintronic devices.
A Bayesian framework for de novo mutation calling in parents-offspring trios
Authors: Wei Qiang , Zhan Xiaowei , Zhong Xue , Liu Yongzhuang , Han Yujun , Chen Wei , Li Bingshan 
Published: December 2014

Abstract
Motivation: Spontaneous (de novo) mutations play an important role in the disease etiology of a range of complex diseases. Identifying de novo mutations (DNMs) in sporadic cases provides an effective strategy to find genes or genomic regions implicated in the genetics of disease. High-throughput next-generation sequencing enables genome- or exome-wide detection of DNMs by sequencing parents-proband trios. It is challenging to sift true mutations through massive amount of noise due to sequencing error and alignment artifacts. One of the critical limitations of existing methods is that for all genomic regions the same pre-specified mutation rate is assumed, which has a significant impact on the DNM calling accuracy.
Results: In this study, we developed and implemented a novel Bayesian framework for DNM calling in trios (TrioDeNovo), which overcomes these limitations by disentangling prior mutation rates from evaluation of the likelihood of the data so that flexible priors can be adjusted post-hoc at different genomic sites. Through extensively simulations and application to real data we showed that this new method has improved sensitivity and specificity over existing methods, and provides a flexible framework to further improve the efficiency by incorporating proper priors. The accuracy is further improved using effective filtering based on sequence alignment characteristics.
Availability and implementation: The C++ source code implementing TrioDeNovo is freely available at https://medschool.vanderbilt.edu/cgg.
Contact: bingshan.li@vanderbilt.edu
Supplementary information: Supplementary data are available at Bioinformatics online.
Globalization, Financial Development and Income Inequality
Authors: Daisaka Hiroshi , Furusawa Taiji , Yanagawa Noriyuki 
Published: December 2014

AbstractWe analyse the effect of financial development and globalization (i.e. the reduction of trade costs) on income distribution when a financial institution is imperfect. Financial imperfection creates income inequality, by benefiting borrowers (entrepreneurs) and harming lenders through its effect of lowering the capital rental rate. We show that globalization changes income for both borrowers and lenders in the same direction. However, the poorer is the financial institution, the greater its effect for entrepreneurs and the smaller for lenders. We also examine the effect of financial development and globalization in an enriched model where individuals are different in their abilities as well as their capital endowments. We show that financial development mitigates capital misallocation while the reduction of trade costs will not improve efficiency.
A Novel Method for the Photographic Recovery of Fingermark Impressions from Ammunition Cases Using Digital Imaging
Authors: Porter Glenn , Ebeyan Robert , Crumlish Charles , Renshaw Adrian 
Published: December 2014

AbstractThe photographic preservation of fingermark impression evidence found on ammunition cases remains problematic due to the cylindrical shape of the deposition substrate preventing complete capture of the impression in a single image. A novel method was developed for the photographic recovery of fingermarks from curved surfaces using digital imaging. The process involves the digital construction of a complete impression image made from several different images captured from multiple camera perspectives. Fingermark impressions deposited onto 9‐mm and 0.22‐caliber brass cartridge cases and a plastic 12‐gauge shotgun shell were tested using various image parameters, including digital stitching method, number of images per 360° rotation of shell, image cropping, and overlap. The results suggest that this method may be successfully used to recover fingermark impression evidence from the surfaces of ammunition cases or other similar cylindrical surfaces.
Fat and fibre behaviour questionnaire: Reliability, relative validity and responsiveness to change in Australian adults with type 2 diabetes and/or hypertension
Authors: Reeves Marina M. , Winkler Elisabeth A.H. , Eakin Elizabeth G. 
Published: December 2014

AbstractAimThe aim of this study was to assess the test–retest reliability, relative validity and responsiveness to change of a 20‐item fat and fibre behaviour questionnaire (FFBQ) compared with a semi‐quantitative food frequency questionnaire (FFQ).MethodsFour hundred thirty‐four primary care patients with type 2 diabetes and/or hypertension were randomised to lifestyle intervention or usual care. Data (FFBQ and FFQ) were collected at baseline and 4 months follow‐up. A subset of usual care participants (n = 27) completed the FFBQ 2 weeks after baseline. FFQ‐measured nutrients included total and saturated fat (percentage of energy; energy‐adjusted grams) and fibre (crude grams; energy‐adjusted grams). The FFBQ was scored as a total, fat and fibre index. Test–retest reliability was assessed by intra‐class correlations (ICCs); relative validity by Pearson's correlations between the FFBQ and FFQ; and responsiveness (mean change in intervention group divided by SD of usual care group change).ResultsTest–retest ICCs (95% CI) were 0.87 (0.62, 0.95) for total index, 0.87 (0.69, 0.95) for fat index and 0.89 (0.69, 0.95) for fibre index. Pearson's correlations for fat index ranged from −0.50 to −0.54, and for fibre index from 0.42 to 0.56. Total index had correlations of 0.5–0.6 (or −0.5 to −0.6) with all FFQ‐measured nutrients except crude fibre. The fat index showed similar responsiveness compared with FFQ‐measured fat intake while the fibre index was significantly more responsive than FFQ‐measured fibre.ConclusionsThe FFBQ may provide a suitable alternative or adjunct to FFQs for use in intervention trials in adults with chronic diseases, because of its ability to detect changes in dietary behaviours.
Evaluation of Nutrition and Dietetic programs in Turkey as perceived by stakeholders
Authors: Aksoydan Emine , Mizikaci Fatma 
Published: December 2014

AbstractAimUniversities responsive to social changes can change rapidly and correctly and reflect these changes in the programs and institutions that are intertwined with society. Program development, in accordance with the requirements of the profession, is integrated with program evaluation studies. The objective of the present study is to evaluate expectations and needs of stakeholders of Nutrition and Dietetic programs in Turkey.MethodsThirty‐four Nutrition and Dietetics programs in Turkey were analysed qualitatively in terms of their historical background, present status, program structure, and knowledge and skills offered through courses. After identification of the stakeholders (participants) of the programs, they were given questionnaires and interviews to provide their opinions about the program. The total number of participants in the present study was 408; 34.3% are students, 22.1% are dietitians, 17.2% are patients and clients, 13% are instructors, 12.2% are cooks and waiters, and 1.2% are managers.ResultsThere was a statistically significant difference (P < 0.05) among students, dietitians and instructors in evaluating the programs' competency providing basic qualifications aimed through theory, practice and extra field courses. The same difference occurred for the degree they find important skills and knowledge for the profession. Majority of the stakeholders agreed the programs should include more practice courses on work‐related knowledge and skills.ConclusionsPrograms should be reviewed in accordance with the needs and expectations of stakeholders. Segments of society affected by the program should actively participate in future program studies.