Miracle-dz/UniFAR-FTUs huggingface dataset:
Faculty Members’ Awareness and Use of Online Public Access Catalog (OPAC) Services at Babcock University, Nigeria: A Study

The study investigated the awareness and use of Online Public Access Catalogue (OPAC) by Faculty Members of Babcock University, Nigeria . The study adopted descriptive survey research design. Questionnaire was distributed to 240 (60%) faculty members at various schools in August 2013 during the annual colloquium workshop. One hundred and nine-six (196) copies of the questionnaire was retrieved and used for the study. Data collected were analysed using percentage and frequency. It will be recall that prior to the introduction and use of OPAC at Babcock University Library, traditional methods of information retrieval hold sway. Also, despite its acclaimed usefulness, most faculty members tend to prefer traditional methods to OPAC. Findings revealed that majority of the respondents (71.4%) were not aware that OPAC can be used to retrieve materials before coming to the library. Also, 65.8% of the respondents were not aware that they can access/browse Babcock University library web-based OPAC with their mobile phones before coming to the library to borrow materials; while, 59.2% of the respondents were not aware that the materials available in Babcock University library can be accessed outside the library building. Only 26% of the respondents used OPAC independently to retrieve library information resources. Majority of the respondents retrieved library information resources by perusing through the shelves and seeking the assistance of library staff. It was obvious from the findings that majority of the respondents were not aware hence the need for the study. L ack of orientation from library staff/librarians also constitutes major factor that militate against awareness and use of Babcock University library OPAC. This study therefore recommends that Librarians should organize orientation and sensitization programmes in order to create awareness, and encourage the university community and especially faculty members at various schools to effectively use OPAC to ensure maximum utilization of library information resources.
iverse 2 D structures obtained by adsorption of charged ABA triblock copolymer n different surfaces

In the larger context of 2D polymeric structures, the morphologies obtained by adsorption and subsequent drying of charged, ABA type amphiphilic triblock copolymer of poly[2-(dimethylamino)ethyl metacrylate] (PDMAEMA) and poly(propylene oxide) (PPO) were investigated with atomic force microscopy and X-ray photoelectron spectroscopy as well as in situ adsorption analysis with quartz crystal microbalance with dissipation monitoring. Hydrophilic silica and hydrophobic polystyrene (PS) were used as substrates for adsorption. The structures emerging from the self-assembly of adsorbing polymer were profoundly influenced by composition of the aqueous solution and the choice of substrate. When adsorbed from dilute polymer solution where the concentration is so low that the polymer does not yet show surfaceactive behavior, the triblock copolymer unimers associated on hydrophilic silica surface forming large, irregular clustered aggregates, with sizes increasing with electrolyte concentration of the solution. On a hydrophobic PS substrate, on the other hand, unimers spread much more evenly, forming clear surface patterns. The roughness of these patterned structures was tuned with the electrolyte concentration of the solution. Adsorption from a more concentrated polymer solution, where the surface-activity of the polymer is perceptible, resulted in the formation of a smooth film with complete coverage over the hydrophilic silica substrate when the electrolyte concentration was high. On PS, on the other hand, nucleation of evenly scattered globular, disk-like micelles was induced. Besides the dry film morphology, the even distribution of the irreversibly adsorbed polymer over the PS surface was likely to serve as an optimal platform for the build-up of reversible hydrophobically bound multilayers at high electrolyte concentration. The multilayer formation was reversible because a decrease in the electrolyte concentration of the solution re-introduces strong electrostatic repulsion between the multilayered polymer coils wn of which results in breakdo
Household income as a determinant of child labor and school enrollment in Brazil: Evidence from a social security reform

This paper studies the effects of household income on labor participation and school enrollment of children aged 10 to 14 in Brazil using a social security reform as a source of exogenous variation in household income. We find that increased benefits are associated with increases in school enrollment for girls, as well as a smaller reduction in their labor participation, but find no effects for boys. We also uncover evidence that the gender of the benefit receiver matters for girls’ labor variables: only benefits received by females reduce girls’ work.
611 THE ROLE OF WORK AND LABOUR MARKET FLEXIBILITY IN WORKING LIFE PROLONGATION : CASE SLOVENIA Klemen ,

Building upon the premise that the prolongation of working life presents an adequate approach to address the fast approaching challenges of population ageing, the paper presents labour market outcomes of older workers in Slovenia in order to explore the role of social system and labour market flexibility in retirement behaviour. By applying bivariate graphic analysis and series of logistic models, paper finds that decisions of older workers (aged 50 69) of whether to retire or to continue working up to legal retirement age is being predominately shaped by the pension system parameters. Economic activity beyond this age (or when retired) on the other hand predominately correlates with flexible work arrangements and work motivation. Thus, the future policies in Slovenia aiming to prolong working careers within formal or informal sector should simultaneously do both; change pension system parameters and significantly expand the system flexibility stimulating willing and capable elderly to continue working within the formal sector.
Running head: RISK FACTORS FOR DEVELOPING BDD

Aims: To explore the combination of environmental and physical factors associated with the development of body dysmorphic disorder (BDD) related to penis size and the differences between men who are anxious about their penis size (but do not meet criteria for BDD), and men who do not report concerns about penis size. Method: Men with BDD (n = 26) were compared to those with small penis anxiety (SPA) (n = 31) and men without concerns (n = 33), by their demographic characteristics, penile measurements, Childhood Trauma, Perception of Teasing Scale, and differential experiences including past medical conditions. Multinomial logistic regression was run to find predictors of group membership. Results: There were significant differences across the groups in which emotional and physical abuse and neglect, competency and general appearance teasing, smaller penis size, older age, and higher Body Mass Index were all identified as risk factors for developing BDD compared to those in the SPA and men without concerns. Only perceived specific genitalia teasing were identified as a risk factor in both BDD and SPA groups compared to men without concerns. Conclusions: The results have implications for our understanding of the development of BDD compared to body dissatisfaction and the prevention of psychiatric morbidity. Smaller penis size was not hypothesised to increase vulnerability to developing BDD but is consistent with being “different” during adolescence and for teasing by one’s peers or a sexual partner.
A Multi-Objective Optimization Algorithm to Predict Information in Mobile Databases

Recent advances in wireless data networking, satellite services and cell connections allow us to take advantage of mobile computing systems. Here, a problem is the mobility of computing process which needs to get information from databases. In fact, system movement during the transaction interrupts the mobile network connection to server wireless systems, and the disconnection causes failing in the running transaction so the mobile system has to run the transaction again. One way to avoid transaction failure is doing prediction process until connecting to the next wireless network. The objective of this study is to use particle swarm optimization (PSO) algorithm in order to provide a solution for prediction of the information sent to the mobile system for using the memory. Generally, PSO algorithms result in the best or an acceptable solution for optimized selection and design in many scientific and technological problems. Here, the objective of PSO is to select the best information to send to the mobile system when the connection is interrupted in order to prevent transaction failures. This study focuses only on information sent to the mobile system.
The Effect of the Personalized Settings for CF-Based Recommender Systems

In this paper, we propose a new method for collaborative filtering (CF)-based recommender systems. Traditional CF-based recommendation algorithms have applied constant settings such as a reference group (neighborhood) size and a significance level to all users. In this paper we develop a new method that identifies optimal personalized settings for each user and applies them to generating recommendations for individual users. Personalized parameters are identified through iterative simulations with ‘training’ and ‘verification’ datasets. The method is compared with traditional ‘constant settings’ methods using Netflix data. The results show that the new method outperforms traditional, ordinary CF. Implications and future research directions are also discussed.
Modular Approach based Backbone Construction Using STP with CDS

In a dense environment, wireless sensor network (WSN) requires more energy to work in an effective and efficient manner. Hence, energy conservation is the main objective. In the paper, we have proposed a methodology to construct a backbone using modular antennas in combination with spanning tree protocol (STP), graph sampling, and Connecting Dominating Set (CDS) strategy. The backbone construction is based upon the modular antenna based WSNs, where the dominating sets can avoid the intermediate connection in order to reduce the hop count and energy consumption. The dominating sets have been connected using the modular transmission range of the wireless sensor networks to construct the backbone. The dominating set selection procedure to construct the WSN backbone is based upon the degree of connections of the nodes, which enables the locally centralized behavior of the connected dominating sets. The proposed methodology has been proved effective resulting in the construction of an energy efficient backbone.
El receptor de insulina como objetivo farmacogenómico: potenciando su señalización intracelular

The actions of insulin are initiated by its binding to the insulin receptor (IR), a disulfide-bonded heterotetrameric membrane protein. Insulin binds to two asymmetric sites on the extracellular α subunits and causes conformational changes that lead to autophosphorylation of the membrane-spanning β subunits and activation of the receptor’s intrinsic tyrosine kinase. Insulin receptors transphosphorylate several immediate substrates (on Tyr residues) including insulin receptor substrate (IRS) proteins. These events lead to the activation of downstream signaling Revista de Endocrinología y Nutrición 2005;13(4):180-189 MG 181 edigraphic.com molecules. The function of the receptor tyrosine kinase is essential for the biological effects of insulin. The pathogenesis of type 2 diabetes mellitus is complex, involving progressive development of insulin resistance and a defect in insulin secretion, which leads to overt hyperglycemia. The molecular basis for insulin resistance in type 2 diabetes remains poorly understood. However, the role of peripheral and hepatic insulin resistance in the pathogenesis of diabetes is undisputed. Insulin resistance can be due to multiple defects in signal transduction (such as impaired activation of insulin receptor-tyrosine kinase and reduced activation of insulin-stimulated phosphatidylinositol-3-OH kinase (PI-3K). A number of molecular targets are now being investigated as ways of enhancing insulin-mediated signal transduction. New approaches to targeting the insulin receptor itself would be to inhibit enzymes responsible for deactivation of the receptor or downstream targets in the signalling pathway (for example, IRS proteins). A number of specific protein tyrosine phosphatases (PTPs) have been identified as candidate targets, among others.
Stochastic Credit Default Swap Pricing

After US Credit Crunch (2008 Credit Crisis) market participants have became aware of importance of credit risk, its measurement and management practices once again. Most of the leading credit institutions and academicians have started to discuss the assumptions of credit risk models and the ability of models to evaluate complex structured products. It was the first time that the credit derivative instruments roll up with their huge size and measurement problem. Being the most sizable and frequently used credit derivative Credit Default Swaps (CDS) valuation is a crucial issue to asses credit risk of financial, non-financial institutions and sovereigns. Our aim is to examine the structural and intensity based credit risk models and measure the CDS prices by using the function for default obtained from the Merton model and the Cox-Ross constant barrier model.
Multifractal Turbulence at the Termination Shock

We consider the multifractal spectra of fluctuations of the interplanetary magnetic field strength before and after shock crossing by Voyager 1 near 85 and 95 AU from the Sun, correspondingly. We show that the multifractal scaling of magnetic fields is asymmetric in the outer heliosphere, in contrast to the symmetric spectrum observed in the heliosheath. Moreover, we show that the degree of multifractality of the solar wind before shock crossing is greater than that in the heliosheath, where the turbulence may become roughly monofractal.
Road User Interactions: Patterns of Road Use and Perceptions of Driving Risk

This conference paper, from the 2002 meeting of the Institution of Professional Engineers New Zealand (IPENZ) Transportation Group, describes the Road User Interactions research program. The Road User Interactions program was established to identify the human factors involved in the road transport system, including road user demographics, risk perceptions of road users, and the driving attitudes of various road user groups. The authors analyzed the 1989 and 1999 New Zealand Household Travel Surveys and identified several fundamental road user differences and consistent demographic trends over that ten-year period. Results showed that rural drivers and women drivers rated a range of driving situations as having greater risk than did the other road user groups, and they rated the high risk scenarios as being much riskier. Men indicated the greatest willingness to accept the risk in driving situations and rated their own driving skill as higher than did women. Older drivers also rated driving situations as having higher risk, and young drivers generally rated low risk situations much lower than other age-group drivers. The male drivers' rates of violations and aggressive violations were significantly higher than the women drivers' and the number of both decreased significantly with age. Both younger and older driver groups have some crash characteristics in common: a disproportionate number of crossing, turning, and maneuvering crashes at intersections in the mid-afternoon. The authors maintain the importance of determining this type of demographic, attitude, and accident information in order to better understand the human factors of the system and to reduce the negative impact of road transportation on society.
Zoning patterns of Fe and V in spinel from a type B Ca‐Al‐rich inclusion: Constraints on subsolidus thermal history

Abstract We obtained two‐dimensional concentration maps for the minor elements Fe and V in 21 spinel crystals in the Allende type B1 inclusion TS‐34 with a 4–5 μm resolution. Locally high concentrations of Fe occur along at least one edge of the spinels and decrease toward the center of the grains. Enrichment in V can also occur along edges or at corners. In general, there is no overall correlation of the Fe and V distributions, but in local regions of two grains, the V and Fe distributions are correlated, strongly suggesting a local source for both elements. In these two grains, opaque assemblages are present that appear to locally control the V distributions. This, coupled with previous work, suggests that prior to alteration, TS‐34 contained V‐rich metal. Oxidation of this metal during alteration can account for the edge/corner V enrichments, but provide only minor FeO contributions, explaining the overall lack of correlation between Fe and V. Most of the FeO appears to have been externally introduced along spinel boundaries during alteration. These alteration phases served as sources for diffusion of FeO into spinel. FeO distributions in spinel lead to a mean attenuation length of ˜8 μm and, using literature diffusion coefficients in isothermal and exponential cooling approximations for peak temperatures in the range 600–700°C, this leads to a time scale for calcium‐aluminum‐rich inclusion (CAI) alteration in the range of decades to centuries.
Deposition and Characterization of CVD-Grown Ge-Sb Thin Film Device for Phase-ChangeMemory Application

Germanium antimony (Ge-Sb) thin films with tuneable compositions have been fabricated on SiO2/Si, borosilicate glass, and quartz glass substrates by chemical vapour deposition (CVD). Deposition takes place at atmospheric pressure using metal chloride precursors at reaction temperatures between 750 and 875◦C. The compositions and structures of these thin films have been characterized by micro-Raman, scanning electron microscope (SEM) with energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD) techniques. A prototype Ge-Sb thin film phase-change memory device has been fabricated and reversible threshold and phase-change switching demonstrated electrically, with a threshold voltage of 2.2–2.5 V. These CVD-grown GeSb films show promise for applications such as phase-change memory and optical, electronic, and plasmonic switching.
Diversity of Chrysomelidae (Coleoptera) at a mountain range in the limit of the Eurosiberian region, northwest Spain: species richness and beta diversity

Chrysomelidae from the Sierra de Queixa mountains (Galicia, northwest Spain) were sampled, reporting 93 species. The estimated local species richness using several non-parametric estimators and accumulation models varies between 104 and 142 species. To compare the Chrysomelidae fauna from Sierra de Queixa with other Galician assemblages we have assessed beta diversity among inventories and we have tested the differences on the zoogeographic compositions among areas. Sierra de Queixa is grouped with other Galician mountain ranges located in the transition zone between Eurosiberian and Mediterranean regions, and it is characterised by a high proportion of Iberian endemic species, significantly higher than expected. Therefore, Chrysomelidae fauna from Sierra de Queixa represents a unique assemblage of Eurosiberian elements that reached the area due to the climatic conditions and Iberian endemic species that are present in the Iberian mountains due to its historic role as southern refugia during glaciations.
Dynamic relaxation of topological defect at Kosterlitz–Thouless phase transition

With Monte Carlo methods we study the dynamic relaxation of a vortex state at the Kosterlitz–Thouless phase transition of the two-dimensional XY model. A local pseudo-magnetization is introduced to characterize the symmetric structure of the dynamic systems. The dynamic scaling behavior of the pseudo-magnetization and Binder cumulant is carefully analyzed, and the critical exponents are determined. To illustrate the dynamic effect of the topological defect, similar analysis for the dynamic relaxation with a spin-wave initial state is also performed for comparison. We demonstrate that a limited amount of quenched disorder in the core of the vortex state may alter the dynamic universality class. Furthermore, theoretical calculations based on the long-wave approximation are presented.
Marker-Assisted Selection in Plant Breeding: From Publications to Practice

The volume of publications on the development and to a lesser extent the application of molecular markers in plant breeding has increased dramatically during the last decade. However, most of the publications result from investments from donors with a strategic science quality or biotech advocacy mandate leading to insufficient emphasis on applied value in plant breeding. Converting promising publications into practical applications requires the resolution of many logistical and genetical constraints that are rarely addressed in journal publications. This results in a high proportion of published markers failing at one or more of the translation steps from research arena to application domain. The rate of success is likely to increase due to developments in gene-based marker development, more efficient quantitative trait locus (QTL) mapping procedures, and lower cost genotyping systems. However, some fundamental issues remain to be resolved, particularly regarding complex traits, before marker-assisted selection realizes its full potential in public sector breeding programs. These include the development of high throughput precision phenotyping systems for QTL mapping, improved understanding of genotype by environment interaction and epistasis, and development of publicly available computational tools tailored to the needs of molecular breeding programs.
Comparison of Life Quality Identity Crisis Among Usual and Menopause Women

Background: One of the most critical periods of women’s life is subjected to the process of menopause. Objective: The main aim of the study was to compare the identity crisis among the menopause and usual women. A comparative-causative method was used to study the research. 60 women higher than 45 years old with early menopause symptoms due to the disease or surgery and 60 non-menopause women higher than 30 year old dwelling in Tehran cosmopolitan participated in this research. They filled the identity crisis questionnaire. Data were analyzed by the use of means comparison method and SPSS software. Results: The results indicated that there is a significant difference between the identity crisis of normal and menopause women. Only menopause and non menopause women had significant difference in terms of tradition subscale. Conclusion: Due to the obtained results of the present study, it can be concluded that the menopause has a negative impact on the identity crisis among menopause women.
The Interest of the Diversity of Perspectives and Methodologies in Evaluating the Science Laboratory Learning Environment

Background:The importance of researching the opinions of students and teachers has been pointed out concerning the improvement of teaching and learning in laboratory environments. In this regard, a study of the laboratory environment was carried out from a diversity of perspectives and methodologies.Material and methods:By means of a questionnaire it was learned that the perception of the actual laboratory environment was clearly positive, with clear similarities but also some differences among participants.Results:While the retrospective narrative has helped explain some of these differences, such as a less positive assessment by the teacher of the material environment as regards the large number of students for the limited laboratory space, the students’ assessment is highly homogeneous and does not appear to be influenced by these conditions.Conclusions:The use of a fast and simple quantitative tool has provided the participants’ general outlook, complemented by the qualitative depth of the retrospective account provided by the teacher.