Miracle-dz/UniFAR-FTUs huggingface dataset:
A new mode changeable full bridge dc/dc converter for wide input voltage range

Generally, a zero voltage switching (ZVS) phase shift full bridge (PSFB) converter is suitable for high power density/high efficiency application and its efficiency is maximized at 50% duty cycle. However, the steady state duty cycle is as small as approximately 30% at full load and nominal input voltage conditions which is because the PSFB must be designed to be ensure the stable operation for a wide input voltage range. Therefore, the efficiency cannot be optimized with this small duty cycle. To cope with this problem, a new mode changeable full bridge dc/dc converter is proposed in this paper. The proposed converter is operated as an asymmetrical full bridge converter during normal operation period with the duty cycle is less than 50%. But, its operation mode is changed to the active clamp full bridge converter during hold up time with the duty cycle is greater than 50%. Therefore, it can produce the stable output voltage along wide input voltage range even though the steady state duty cycle is 50% at full load condition. Moreover, ZVS of all power switches can be ensured along a wide load ranges and output current ripple is very small. Especially, since the freewheeling interval does not exist(the conduction loss is lower than that of the conventional ZVS PSFB dc/dc converter), high efficiency of the proposed converter can be achieved. The operational principles, theoretical analysis and design considerations are presented. To confirm the operation, validity and features of the proposed converter, experimental results from a 1.2kW(400Vdc/12Vdc) prototype are presented.
International Students in Counseling

The purpose of this article is to better understand why international students often do not avail themselves of support services on university campuses. Interviews were conducted with international students to learn why many often under-utilized university counseling centers. Based upon the interviews, the authors provide outreach strategies that counseling centers can use to expand the delivery of their services to international students.
Evaluating the Impact of a Cognitive-Behavioral Intervention with Depressed Latinas

Abstract A 12-session Cognitive-Behavioral Treatment (CBT) protocol for depression developed at San Francisco General Hospital was pilot tested with Latinas in New York City. Viability of the protocol and indication of treatment efficacy was sought as a rationale for more controlled investigation of the intervention on Latino urban populations in the Northeast. The pre- and post-treatment BDI scores for all five participants declined an average of 12 points (95% CI: [3, 21], p < 0.01). Given the lack of control group and small sample size, these findings must be interpreted with caution. Nevertheless, the significant before-after improvement is consistent with previous findings regarding this protocol, and the potential effectiveness of this particular treatment among this population warrants more rigorous examination. Furthermore, the feasibility of social workers evaluating the impact of their interventions is demonstrated.
360° Beam-Steering Reconfigurable Wideband Substrate Integrated Waveguide Horn Antenna

A novel beam-steering reconfigurable substrate integrated waveguide (SIW) horn antenna is presented. By employing p-i-n diodes as tuning mechanisms, the states of copper posts of the SIW horn can be electronically controlled. Accordingly, the aperture direction of the horn can be switched, and a 360° beam-scanning ability is realized. A pair of bowl-shaped reflectors is introduced for achieving a wide impedance bandwidth and good directional radiation patterns. A fully functional prototype with a 26.2% impedance bandwidth is developed and tested, demonstrating the antenna with a measured gain varying between 8 and 10 dBi and a radiation efficiency of approximately 75% over the impedance band. Moreover, owning to its symmetrical structure, the proposed antenna is capable of steering the radiation beam every 22.5° with identical radiation patterns in the H-plane.
Empirical mode decomposition to assess cardiovascular autonomic control in rats

Heart beat rate and blood pressure, together with baroreflex sensitivity, have become important tools in assessing cardiac autonomic system control and in studying sympathovagal balance. These analyses are usually performed thanks to spectral indices computed from standard spectral analysis techniques. However, standard spectral analysis and its corresponding rigid band‐pass filter formulation suffer from two major drawbacks. It can be significantly distorted by non‐stationarity issues and it proves unable to adjust to natural intra‐ and inter‐individual variability. Empirical mode decomposition (EMD), a tool recently introduced in the literature, provides us with a signal‐adaptive decomposition that proves useful for the analysis of non‐stationary data and shows a strong capability to precisely adjust to the spectral content of the analyzed data. It is based on the concept that any complicated set of data can be decomposed into a finite number of components, called intrinsic mode functions, associated with different spectral contributions. The aims of this study were twofold. First, we studied the changes in the sympathovagal balance induced by various pharmacological blockades (phentolamine, atropine and atenolol) of the autonomic nervous system in normotensive rats. Secondly, we assessed the use of EMD for the analysis of the cardiac sympathovagal balance after pharmacological injections. For this, we developed a new (EMD‐based) low frequency vs. high frequency spectral decomposition of heart beat variability and systolic blood pressure, we define the corresponding EMD spectral indices and study their relevance to detect and analyze changes accurately in the sympathovagal balance without having recourse to any a priori fixed high‐pass/low‐pass filters.
Epidermolysis bullosa acquisita

Epidermolysis bullosa acquisita (EBA) is a chronic autoimmune subepidermal bullous disease with clinical features similar to the genetic form of dystrophic epidermolysis bullosa. EBA is characterized by the presence of autoantibodies against type VII collagen which is a major component of the anchoring fibrils at the dermal‐epidermal junction. EBA can be divided into two main clinical types; mechanobullous and inflammatory EBA. Mechanobullous EBA, referred to as classic EBA, presents with skin fragility, blisters and dystrophic changes on trauma‐prone areas. Inflammatory EBA resembles other autoimmune subepidermal bullous diseases. Compelling evidence from mouse models supports a pathogenic role of autoantibodies against type VII collagen in EBA. Treatment of EBA is often unsatisfactory. The most widely used systemic treatment is corticosteroids. Colchicine and dapsone have been reported to be good treatment modalities when combined with corticosteroids. Some intractable cases of EBA have successfully been treated with intravenous immunoglobulin or rituximab.
Identifying Semantic Relations and Functional Properties of Human Verb Associations

This paper uses human verb associations as the basis for an investigation of verb properties, focusing on semantic verb relations and prominent nominal features. First, the lexical semantic taxonymy GermaNet is checked on the types of classic semantic relations in our data; verb-verb pairs not covered by GermaNet can help to detect missing links in the taxonomy, and provide a useful basis for defining non-classical relations. Second, a statistical grammar is used for determining the conceptual roles of the noun responses. We present prominent syntax-semantic roles and evidence for the usefulness of co-occurrence information in distributional verb descriptions.
Agriculture and Biology Journal of North America Profitability Analysis of All-male Tilapia Farming in Sekyere South and Bosomtwe Districts of Ashanti Region *1

All-male tilapia production is an emerging market in Ghana and a potential source of employment for the people. Despite the increase in livestock and poultry industries, the problem of protein deficiency continues unabated. The contribution of the fishing industry to solving the protein deficiency problem is important. Using data from eighty randomly sampled fish farmers in the Ashanti Region, the profitability of all-male tilapia farming was assessed and the determinants of all-male tilapia output examined. Gross margin analysis and production functions were estimated. Comparing costs and returns, a gross margin of GH¢ 5,797.56 and profit of GH¢ 2,282.17 were realized per annum. The rate of return on investment of 1.86 implies that for each Ghana cedi invested in this enterprise, a return of GH¢ 1.86 was obtained. Regression analysis revealed that all-male tilapia output was significantly determined by feeding, cost of fingerlings, pond size, sex and experience in fish farming. It is concluded that all-male tilapia production is economically rewarding and capable of creating employment, augmenting income and improving living standards of people. Government participation in all-male tilapia farming can boost the quantity of fish available for consumption in the country.
Stability of energy imageries and affect following shocks to the global energy system: the case of Fukushima

Energy debates in the public sphere are often loaded with emotions. This is especially so following energy catastrophes which call for a more thorough understanding of affective rationality in the energy context. This research contributes to this effort by carrying out an in-depth effort to capture qualitative imageries and quantitative imagery-specific affect associated with nuclear, coal, natural gas, solar, and wind energy sources. Additionally, a detailed analysis of changes to energy imageries and imagery-specific affect in the aftermath of an energy catastrophe (i.e., Fukushima nuclear accident) is carried out. Two hundred and seventy-five German young adults took part in the study between December 2010 and January 2011 (before the Fukushima incident) while 452 young adults participated in the second round of the study between May and August 2011 (after the Fukushima incident). Word associations are used to elicit mental imageries and affect toward multiple energy sources. Content-analysis of imageries and quantitative analysis of the affective evaluation of such imageries revealed several interesting findings. Results provide insights into aspects of each energy source eliciting high levels of concern/support (as indicated by imageries associated with strong negative/positive affect). The robust association of each energy source with particular imageries is found to remain persistent after the Fukushima nuclear accident. While no change in affect toward nuclear and wind imageries are observed, some changes in affect toward imageries associated with coal, natural gas and solar are found. Nevertheless, the observed stability in the majority of qualitative imageries and quantitative imagery-specific affect after the Fukushima incident suggests that affective energy imageries are deeply anchored in people’s minds and point to a potential lock-in of affective mental associations in the energy context. Implications for future research, policy, and managerial decision-makers are discussed.
Myocardial regeneration by transplantation of modified endothelial progenitor cells expressing SDF-1 in a rat model

Cell based therapy has been shown to attenuate myocardial dysfunction after myocardial infarction (MI) in different acute and chronic animal models. It has been further shown that stromal‐cell derived factor‐1α (SDF‐1α) facilitates proliferation and migration of endogenous progenitor cells into injured tissue. The aim of the present study was to investigate the role of exogenously applied and endogenously mobilized cells in a regenerative strategy for MI therapy. Lentivirally SDF‐1α‐infected endothelial progenitor cells (EPCs) were injected after 90 min. of ligation and reperfusion of the left anterior descending artery (LAD) intramyocardial and intracoronary using a new rodent catheter system. Eight weeks after transplantation, echocardiography and isolated heart studies revealed a significant improvement of LV function after intramyocardial application of lentiviral with SDF‐1 infected EPCs compared to medium control. Intracoronary application of cells did not lead to significant differences compared to medium injected control hearts. Histology showed a significantly elevated rate of apoptotic cells and augmented proliferation after transplantation of EPCs and EPCs + SDF‐1α in infarcted myocardium. In addition, a significant increased density of CD31+ vessel structures, a lower collagen content and higher numbers of inflammatory cells after transplantation of SDF‐1 transgenic cells were detectable. Intramyocardial application of lentiviral‐infected EPCs is associated with a significant improvement of myocardial function after infarction, in contrast to an intracoronary application. Histological results revealed a significant augmentation of neovascularization, lower collagen content, higher numbers of inflammatory cells and remarkable alterations of apoptotic/proliferative processes in infarcted areas after cell transplantation.
Hyperspectral face recognition using 3D Gabor wavelets

Compared to the fruitful research outputs in 2D face recognition, the research in hyperspectral face recognition is quite limited in literature. When most available works process 2D slices of hyperspectral data separately, a 3D Gabor wavelet based approach is proposed in this paper to extract features in spatial and spectrum domain simultaneously. As a result, the information contained in the 3D data can be fully exploited. Experimental results show that the proposed approach substantially outperforms the methods available in literature such as spectrum feature, PCA and 2D-PCA on the HK-PolyU Hyperspectral Face Database under the same testing protocol. When only one sample per subject is available for training, our method also achieves very robust performance.
Biophysical stimulation induces demyelination via an integrin‐dependent mechanism

Chronic nerve compression (CNC) injuries occur when peripheral nerves are subjected to sustained mechanical forces, with increasing evidence implicating Schwann cells as key mediators. Integrins, a family of transmembrane adhesion molecules that are capable of intracellular signaling, have been implicated in a variety of biological processes such as myelination and nerve regeneration. In this study, we seek to define the physical stimuli mediating demyelination and to determine whether integrin plays a role in the demyelinating response.
Dynamical Systems in Social Psychology

R.R. Vallacher and A. Nowak, The Chaos in Social Psychology. A. Nowak and M. Lewenstein, Dynamical Systems: A Tool for Social Psychology? A.J. Mandell and K.A. Selz, The New Statistical Dynamics: An Informal Look at Invariant Measures of Psychological Time Series. F.E. Schroeck, Jr., New Mathematical Techniques for Pattern Recognition. A. Tesser and J. Achee, Aggression, Love, Conformity and Other Social Psychological Catastrophes. R.M. Baron, P.G. Amazeen, and P.J. Beek, Local and Global Dynamics of Social Relations. D. Newtson, The Perception and Coupling of Behavior Waves. K.A. Selz and A.J. Mandell, A Family of Autocorrelation Graph Equivalence Classes on Symbolic Dynamics as Models of Individual Differences in Human Behavioral Style. J.R. Eiser, Toward a Dynamic Conception of Attitude Consistency and Change. B. Latane and A. Nowak, Attitudes as Catastrophes: From Dimensions to Categories with Increasing Involvement. R.R. Vallacher and A. Nowak, The Stream of Social Judgment. A. Nowak, M. Lewenstein, and R.R. Vallacher, Toward a Dynamical Social Psychology. Index.
Types of Human Age-Related Cataract and Its Relationship between Some Serum Routine Biochemical Parameters of Indian Population

Cataract is one of change in human aging process, generally the lens become clouding and disturb normal vision of every individuals. The routine biochemical analysis shows, there is significant changes in blood parameters between normal and cataract population that were reported by many previous experiments but study related to routine biochemical parameters and its phenomenon were not known among different types of cataract. Hence, a study was planned to understand the relationship among the different types cataract population among Indian ethnics to fill-up the lacuna that could facilitate the prevention of those types by simply identifying them using routine biochemical analysis. About 25 samples in each group were planned. Biochemical data were retrieved from medical records and analyzed by statistical tools, one way ANOVA followed by an ad hoc Turkey's Multiple Comparison Test (P < 0.05) to compare variances among the four experimental groups, they are Cortical, Nuclear Sclerotic, and Posterior Subcapsular and Mixed types. Results indicated that there is no characteristics significance among different types of cataract in serum biochemical parameters analyzed. This study suggest that, there is a need to identify some simple markers from blood samples and exploring the fact behind the appearance of these markers which may be useful for diagnostic and prevention systems of health care market.
When Women Deliver with No One Present in Nigeria: Who, What, Where and So What?

With the current maternal mortality ratio (MMR) of 630/100,000 live births, Nigeria ranks among the nations with the highest mortality rates in the world. The use of skilled assistants during delivery has been identified a key predictor in the reduction of mortality rates in the world over. Not only are Nigerian women predominantly using unskilled attendants, one in five births are delivered with No One Present (NOP). We assessed who, what, where and the so what of this practice using 2008 Nigeria DHS (NDHS) data. The study revealed that the prevalence of NOP is highest in the northern part of Nigeria with 94% of all observed cases. Socio-demographic factors, including, women’s age at birth, birth order, being Muslim, and region of residence, were positively associated with NOP deliveries. Mother’s education, higher wealth quintiles, urban residence, decision-making autonomy, and a supportive environment for women’s social and economic security were inversely associated with NOP deliveries. Women’s autonomy and social standing were critical to choosing to deliver with skilled attendance, which were further amplified by economic prosperity. Women’s’ economic wellbeing is entwined with their feelings of independence and freedom. Programs that seek to improve the autonomy of women and their strategic participation in sound health seeking decisions will, most likely, yield better results with improvements in women’s education, income, jobs, and property ownership. As a short term measure, the use of conditional cash transfer, proven to work in several countries, including 18 in sub-Saharan Africa, is recommended. Its use has the potential to reduce household budget constraint by lowering cost-related barriers associated with women’s ability to demand and use life-saving services. Given the preponderance of NOP in the Northern region, the study suggests that interventions to eradicate NOP deliveries must initially focus this region as priority.
Morbidity in a Population of Low-Income, Female Users of MDMA and Other Drugs

Few previous studies have reported on the overall health of drug-using women. To investigate this, 696 low-income women aged 18–31 were recruited in a cross-sectional study from gynecological care clinics in Texas between 2001 and 2003. Compared to exclusive marijuana users and non–drug users, women who used MDMA and those who used other illicit drugs but not MDMA reported more gynecological conditions, medical conditions, depressive symptoms, and physical somatic complaints. We concluded that young, low-income women who used more than one illicit drug experience significantly more physical and psychological morbidity. Generalization of this study results may be limited to young women with low income but not to other populations.
Safety, tolerability and pharmacokinetics of repeat dosing of the antibiotic GSK1322322, a peptide deformylase inhibitor: a randomized placebo-controlled study.

OBJECTIVES GSK1322322 is a potent inhibitor of peptide deformylase, an essential bacterial enzyme required for protein maturation. In this two-part, double-blind, randomized, placebo-controlled, Phase 1 study (study identifier: PDF112668), the safety, tolerability and pharmacokinetics of single and repeat oral-dose GSK1322322 (500-1500 mg) in healthy adult and elderly volunteers were evaluated. PATIENTS AND METHODS Part A included GSK1322322 doses of 500, 750, 1000 and 1500 mg in healthy adults; Part B evaluated 1000 mg of GSK1322322 in healthy elderly volunteers. Volunteers received a single morning dose of a powder-in-bottle formulation of GSK1322322 or placebo on day 1, no dosing on day 2 and twice-daily dosing on days 3-12. RESULTS Of 52 enrolled volunteers, 40 and 12 volunteers were treated with GSK1322322 and placebo, respectively. Mean plasma GSK1322322 trough concentration increased with increasing dose and reached steady-state after 2 days of repeat dosing. After single dosing of GSK1322322, maximum plasma concentration and exposure (AUC) were dose proportional from 500 to 1500 mg. However, after repeat dosing, AUC values at steady-state increased slightly more than proportionally, possibly because of a slightly longer terminal elimination t½ after repeat dosing (compared with single-dose t½) at higher doses (1000 and 1500 mg). There was no age effect or diurnal variation in the GSK1322322 pharmacokinetic profile. GSK1322322 was generally well tolerated-all adverse events were mild to moderate in intensity. CONCLUSIONS Repeat oral GSK1322322 (500-1500 mg) for 10 days was well tolerated. These data warrant further clinical investigation of GSK1322322.
A role for the host coatomer and KDEL receptor in early vaccinia biogenesis

Members of the poxvirus family have been investigated for their applications as vaccines and expression vectors and, more recently, because of concern for their potential as biological weapons. Vaccinia virus, the prototypic member, evolves through multiple forms during its replication. Here, we show a surprising way by which vaccinia hijacks coatomer for early viral biogenesis. Whereas coatomer forms COPI vesicles in the host early secretory system, vaccinia formation bypasses this role of coatomer, but instead, depends on coatomer interacting with the host KDEL receptor. To gain insight into the viral roles of these two host proteins, we have detected them on the earliest recognized viral forms. These findings not only suggest insights into early vaccinia biogenesis but also reveal an alternate mechanism by which coatomer acts.