Miracle-dz/UniFAR-FTUs huggingface dataset:
Estimation of burnout status of women employees of health centers of Tehran city community

Background & Aim : Burnout is an important reason behind reduced performance, which is not only related to employees’ mental health but also their productivity. Thus, identifying the factors affecting it can significantly prevent it and promote the level of services provided. The goal of this research was to assess burnout among female employees of Tehran’s urban community health centers. Methods & Materials: In this descriptive-analytic study, 239 female employees were selected through stratified clustered sampling from a statistical population. Demographic information was collected by a researcher – made questionnaire and the 22-item Maslach Burnout Inventory (MBI). The data were analyzed using descriptive and analytical statistical tests. Results : Based on the results, 11.3% of the employees experienced high levels of emotional exhaustion, 2.5% experienced high levels of depersonalization, and 5.4% experienced a reduced personal accomplishment. There were significant associations between the dimensions of burnout (p<0.05). Emotional exhaustion was significantly associated with place of service; depersonalization was significantly associated with age, number of births, physical activity and husband’s occupation; and lack of personal accomplishment was significantly associated with age, type of occupation, numbers of pregnancies and numbers of births (p<0.05). Conclusions : The high level of reduced personal accomplishment, as opposed to the status of the other dimensions of burnout was considerable. Given that some of the factors affecting it are changeable, the execution of certain programs for professional promotion in employed individuals and improvement of workplace conditions can play important roles in reducing the resultant harm of burnout.
An endometrial histomorphometric study of CD 56 + natural killer cells in women with unexplained infertility

51 SAJOG • September 2017, Vol. 23, No. 2 Background. The number of peripheral blood and endometrial natural killer cells varies greatly during implantation and the first trimester of pregnancy and is thought to play a role in the maintenance of a healthy pregnancy. However, the role of endometrial CD56+ natural killer (NK) cells as an immunological mechanism in unexplained infertility is yet unknown. Objectives. The study aimed to enumerate the concentrations of CD56+ NK cells in endometrial samples, and to statistically compare these numbers between fertile and infertile women. Methods. A histomorphometric analysis was conducted using haematoxylin and eosin staining and an immunohistochemical approach was used for quantifying cell numbers. Results. Fifty samples were collected in equal parts between a study group of infertile female subjects (mean (standard deviation) age 35 (4), range 26 42 years) and a control group of multiparous fertile individuals (mean (SD) age 43.4 (6.3), range 30 55). The mean number of CD56+ NK cells present at different depths for both the study and control groups did not differ significantly. Age and group (study or control) were not significantly related to the mean number of CD56+ NK cells. However, for the late secretory phase the mean number of CD56+ NK cells was significantly higher than for the early phase. Conclusion. Our findings could not identify a statistically significant correlation between the number of CD56+ NK cells and infertility.
THE ART OF FRAME THEORY

The theory of frames for a Hilbert space plays a fundamental role in signal processing, image processing, data compression, sampling theory and more, as well as being a fruitful area of research in abstract mathematics. In this “tutorial” on abstract frame theory, we will try to point out the major directions of research in abstract frame theory and give some sample techniques from each of the areas. We will also bring out some of the important open questions, discuss some of the limitations of the existing theory, and point to some new directions for research.
Credit Risk Assessment Using Survival Analysis For Progressive Right-Censored Data: A Case Study in Jordan

In credit risk management, the Basel Committee provides a choice of three approaches for financial institutions to calculate the required capital; standardized approach, Internal Ratings-Based (IRB) approach, and Advanced IRB approach. The IRB approach is usually preferred compared to the standard approach due to its higher accuracy and lower capital charges. The objective of this study is to use several parametric models (exponential, log-normal, gamma, Weibull, log-logistic, Gompertz) and non-parametric models (Kaplan-Meier, Nelson-Aalen) to estimate the probability of default which can be used for evaluating the performance of a sample of credit risk portfolio. The models are fitted to a sample data of credit portfolio obtained from a bank in Jordan for the period of January 2010 until December 2014. The best parametric and non-parametric models are selected using several goodness-of-fit criteria, namely MSE, AIC and BIC for parametric models and SE and MAD for non-parametric models. The estimated default probability is then applied to forecast the credit risk of a corporate portfolio at 99.9% confidence level and several time horizons (3 months, 6 months, 9 months, 1 year). The results show that the Gompertz distribution is the best parametric model, whereas the Nelson-Aalen estimator is the best non-parametric model for predicting the probability of default of the credit portfolio.
The rate of type Ia Supernovae and the star formation history

The scaling of the rate of type Ia Supernovae (SNIa) with the parent galaxies' color provides information on the distribution of the delay times (DTD) of the SNIa progenitors. We show that this information appears to depend on the photometric bands used to trace the stellar age distribution and mass-to-light ratio in the parent galaxies. Using both (U-V) and (B-K) colors to constrain the star formation history, we model the SNIa rate as a function of morphological galaxy type for different DTDs. The comparison with the observed rate per unit B and K band luminosity yields consistent results, although the large error bars allow us to exclude only very flat and very narrow DTDs. The number of SNIa from one stellar generation results of ~ 2, 3 events every 1000 Mo of stars formed.
D-Rex, a program for calculation of seismic anisotropy due to crystal lattice preferred orientation in the convective upper mantle

SUMMARY Models of development of lattice preferred orientation (LPO) of crystals aggregates in convec- tive flow are necessary to interpret the anisotropic seismic signature of the Earth's upper mantle. For that purpose we previously developed a model of LPO evolution in olivine aggregates by plastic deformation and dynamic recrystallization by subgrain rotation and grain-boundary migration. This paper presents a refined version of that model, called D-Rex (for dynamic recrystallization-induced LPO), a public version of which is made available on our web site. The code displays two new features: (1) enstatite is incorporated in the aggregates and (2) grain-boundary sliding (GBS) of small grains is taken into account. Enstatite is incorporated on the assumption of no direct interaction with olivine. The fast (a-)axis of enstatite grains tend to be parallel to the slow (c-)axis of olivine, which dilutes the total anisotropy. Grain boundary sliding is included using a threshold dimensionless volume fraction χ , defined as the ratio of the initial size of the grains over the size for which GBS is the dominant mechanism of deformation. Grains with a dimensionless volume smaller than χ do not rotate by plastic deformation and their strain energy is set to zero. Comparison with torsion experiments at very large strain constrains the threshold dimensionless volume to 0.3 ± 0.1. The incorporation of grain-boundary sliding prevents the LPO from becoming singular at large strains and yields more realistic predictions. Our kinematic formalism and the model's semi-analytical character insures that it is fast, robust and stable. It can be applied efficiently to arbitrary 3-D convective flows.
PSEUDO-LIKELIHOOD INFERENCE FOR REGRESSION MODELS WITH MISCLASSIFIED AND MISMEASURED VARIABLES

This paper investigates the use of a pseudo-likelihood approach for infer- ence in regression models with covariates affected by measurement errors. The max- imum pseudo-likelihood estimator is obtained through a Monte Carlo expectation- maximization type algorithm and its asymptotic properties are described. The fi- nite sample performance of the pseudo-likelihood approach is investigated through simulation studies, and compared to a full likelihood approach and to regression calibration under different measurement error structures, as well as continuous or discrete covariates. In contrast to the full likelihood approach, our method is computationally fast while remaining competitive from an inferential perspective. Satisfactory results are also provided over regression calibration. Pseudo-likelihood and the competing methods are finally applied to the analysis of two data sets.
Evaluation of Surface Tension of Molten Slag in Multi-component Systems

A thermodynamic model for determining the surface tension of molten ionic mixtures, derived by considering the ionic radii of the components, was extended to multi-component slag systems. The composition dependence of the surface tension in 6-component systems of the type CaO–SiO2–Al2O3–MgO–Na2O–CaF2 was evaluated with the present model using information based on the surface tension and molar volume of the pure oxide components, and on the anionic and cationic radii. The evaluated results for the surface tension agree well with literature data.
Segmentation d'images couleur par classification de pixels dans des espaces d'attributs colorimétriques adaptés : application à l'analyse d'images de football

Dans le cadre de l'analyse d'images de football, nous proposons une methodologie originale de segmentation d'images couleur en regions qui exploite les proprietes colorimetriques des pixels pour extraire de l'image les joueurs a suivre. Les pixels de chaque image sont affectes a differentes classes selon qu'ils representent le terrain, un joueur de l'une des deux equipes, un des deux gardiens de but ou un arbitre en utilisant des methodes classiques de classification de donnees multidimensionnelles fondees sur un apprentissage supervise. La couleur de chaque pixel est usuellement representee sur la base des trois composantes trichromatiques rouge, verte et bleue, mais peut etre codee dans d'autres systemes de representation que nous avons regroupes par familles en fonction de leurs differentes proprietes. L'originalite de notre approche consiste a construire un espace couleur hybride en selectionnant les composantes couleur les mieux adaptees aux classes de pixels a retrouver et pouvant etre issues de differents systemes. Pour cela, nous utilisons une methode d'analyse discriminante associee a des criteres informationnels de discrimination. Cette approche est generalisee en considerant qu'un pixel est represente par des attributs colorimetriques evalues a son voisinage. Il est ainsi possible de proposer une liste d'attributs calcules pour chacune des composantes couleur des systemes de representation. Le voisinage dans lequel sont calcules ces attributs colorimetriques permet de definir une texture couleur et de restituer ainsi les relations de connexite entre les pixels voisins. Les attributs colorimetriques les plus discriminants sont regroupes au sein d'un espace d'attributs colorimetriques adapte a la classification.
Comparison of PCR and bacterial culture methods for diagnosis of dairy cattle's subclinical mastitis caused by Staphylococcus aureus

To compare PCR and bacterial culture methods for diagnosis of subclinical mastitis caused by Staphylococcus aureus, 100 milk samples from cattle with subclinical mastitis and 20 samples from healthy cattle were collected and tested. The samples were cultured on selective blood agar and bacteria were identified by standard methods. DNA extracted from samples was subjected to PCR reaction with species specific primers and PCR products were analyzed by agarose gel electrophoresis. Based on the PCR results the prevalence of subclinical mastitis due to S. aureus was 25%. In the bacteriological culture of single milk sampling, S. aureus was isolated from the same samples being positive in PCR. A correlation of 100% was found between PCR and single milk sampling culture method by Mc Nemar test. All of the CMT negative samples were also negative in culture and PCR methods. The results of this study indicate that the PCR reaction is sensitive and specific for diagnosis of S. aureus in subclinical mastitis and can detect this pathogen in milk samples at species level in few hours.
Rumen-protected choline for dairy cows: the in situ evaluation of a commercial source and literature evaluation of effects on performance and interactions between methionine and choline metabolism

The interactions were investigated between methionine and choline metabolism due to interchangeable methyl groups. Feeding trials on dairy cows with choline administration were re-evaluated with a focus on methionine balance and the possible effects of supplementary choline on methionine metabolism. In addition, in situ ruminal stability was estimated for a commercial choline supplement. We examined six experiments that included 11 dietary treatments. The Cor- nell net carbohydrate and protein system was used to estimate nutrient supply and requirements as well as methionine balance; further methionine supply was assessed according to the ideal pro- tein concept. The re-evaluation of feeding trials confirmed the positive effects of supplementary abomasally available choline on milk yield and health of dairy cows. Although these effects were mainly attributed to an elevated export of triglycerides from the liver, beneficial effects may be fur- ther caused by an exoneration of methionine metabolism by sparing S-adenosylmethionine. There- fore, the effects on milk yield or other response variables of additional, abomasally available choline could serve as an indicator of methyl group deficiency and thus methionine shortage. Since from theoretical considerations the demand for methyl groups in dairy cows is related to the stage of lactation, requirements for methionine and methyl groups should be taken as separate entities and the latter should be expressed in relation to energy balance or days in milk. Our in situ data indi- cate that Reashure choline was effectively protected against ruminal degradation because at least 600 g·kg −1 of choline were in a rumen-protected form. In conclusion, (I) supplementary choline may improve the yield of dairy cows by elevating the export of triglycerides from the liver and by sparing methionine as a methyl donor, and (II) the demand for methyl groups still lacks adequate consideration in the design of diets for dairy cows.
Relative volume comparison theorems in Finsler geometry and their applications

We establish some relative volume comparison theo- rems for extremal volume forms of Finsler manifolds under suitable curvature bounds. As their applications, we obtain some results on curvature and topology of Finsler manifolds. Our results remove the usual assumption on S-curvature that is needed in the litera- ture.
Polymorphism in DRB3 exon 2 by PCR-RFLP and its association with mastitis in Murrah buffaloes

Murrah buffaloes (n=25) were used to explore the genetic polymorphism in DRB3 exon 2 by PCR-RFLP and to find out the association with mastitis. The gDNA was isolated from whole blood samples as per standard protocol and a 304 bp PCR was amplified. When 304 bp product of exon 2 of DRB3 gene was digested with RsaI, it revealed 10 alleles (a, b, c, f, g, i, l, o, s & t) with 12 different genotypes (a/a, b/b, c/c, f/f, i/i, o/o, s/s, t/t, o/g, i/f, l/t, & i/s). HaeIII revealed 5 alleles (a, b, d, e & i) and 8 genotypes (a/a, e/e, d/d, b/b, a/e, a/b, a/d & b/i). On digestion with PstI, only 4 alleles (x, y, z & s) with 7 different genotypes (x/x, y/y, z/z, x/y, x/z, s/z & y/z) were observed. The following genotypes a/a, c/c, and f/f (RsaI); b/b, d/d, e/e, and b/I (HaeIII); x/x, y/y, x/y, and y/z (PstI) were observed only in healthy animals. These results revealed that the DRB3.2 gene was more polymorphic in the healthy animals than mastitis cases.
Handbook of Corynebacterium glutamicum

Part I: History A Short History of the Birth of the Amino Acid Industry in Japan, S. Kinoshita Part II: Taxonomy Corynebacterium Taxonomy, W. Liebl Part III: Genome, Plasmids and Gene Expression The Genomes of Amino Acid-producing Corynebacteria, J. Kalinowski Native Plasmids of Amino Acid-producing Corynebacteria, A. Tauch Regulation of Gene Expression, M. Patek Proteomics, S. Schaffer and A. Burkovski Part IV: Transport The Cell Envelope of Corynebacteria, M. Daffe Genomic Analyses of Transporter Proteins in Corynebacterium glutamicum and Corynebacterium efficiens, B. Winnen, J. Felce, and M. H. Saier, Jr. Export of Amino Acids and Other Solutes, L. Eggeling Part V: Physiology and Regulation Central Metabolism: Sugar Uptake and Conversion, A. Yokota and N.D. Lindley Central Metabolism: Tricarboxylic Acid Cycle and Anaplerotic Reactions, B. Eikmanns Metabolic Flux Analysis in Corynebacterium glutamicum, C. Wittmann and A.A. De Graaf Respiratory Energy Metabolism, M. Bott and A. Niebisch Nitrogen Metabolism and Its Regulation, A. Burkovski Sulfur Metabolism and Regulation, H. -S. Lee Phosphorus Metabolism, V.F. Wendisch and M. Bott Vitamin Synthesis: Carotenoids, Biotin, and Pantothenate, G. Sandmann and H. Yukawa Osmoregulation, S. Morbach and R. Kramer Part VI: Synthesis and Production L-Glutamate Production, E. Kimura L-Lysine Production, R. Kelle, T. Hermann, and B. Bathe L-Tryptophan Production, M. Ikeda Synthesis of L-Threonine and Branched Chain Amino Acids, L.B. Willis, P. A. Lessard, and A. J. Sinskey Part VII: Experiments Experiments
Forecasting Electricity Prices

This is a review paper documenting the main issues and recent research on modeling and forecasting electricity prices. The special market microstructure of electricity is described, as an explanation of the extraordinary stochastic properties of electricity price time series. The research literature deriving from the application of models adapted from financial assets, for both spot and forward prices, is reviewed and criticised. Final emphasis is placed upon the virtues of computationally intensive structural modeling.
Computing the flow past a cylinder with hemispherical ends

A novel application of a spectral element method with a Fourier expansion in the third dimension is used to compute the flow past a cylinder with hemispherical ends. This cylinder is useful as it is a sphere at the small length ratio limit, while approaching a straight circular cylinder as the length ratio is increased. Measurements of the Strouhal frequency and mean drag are presented, and results of a grid independence study show that 128 Fourier planes were required to resolve the flow to an accuracy better than 1%. With 64 planes, forces were predicted accurate to 2%, but Strouhal frequencies were over predicted by approximately 8%. The measured Strouhal frequencies provide useful benchmark data for future low Reynolds number studies of the flow past short cylinders.
Some effects of simultaneous administration of crude aqueous extracts of Mangifera indica leaves and tetracyline on the liver of adults wistar rats

This study was designed to determine the simultaneous effect of Mangifera indica crude aqueous extract and the therapeutic dose of tetracycline on some hepatic enzymes (ALT and AST) and histology of the liver of adult wistar rats. 25 wistar rats were divided into 5 groups: Group A was untreated and served as control group, group B was treated with only 2mL of mango leaves decoction, group C was treated with only 5.4mg/kg of tetracycline, group D was treated with 1mL of mango leaves decoction and 4.8mg/kg of tetracycline and group E was treated with 3mL of mango leaves decoction and 7.7mg/kg of tetracycline simultaneously. The administration period lasted for only 14 days which was given gavagely and the rats were sacrificed on the 15th day by cervical dislocation. The liver was removed, fixed in 10% formal saline and stained in H and E. The transaminase enzymes (the AST and ALT) were measured to determine possible changes in their hepatic leaves. The result shows that the crude aqueous extract of mango levels has adverse effect on the morphology and some hepatic enzyme (ALT and AST) of the liver (such as enlargement of the central vein, reduction in the size of sinusoids), the therapeutic dose of the tetracycline have no detrimental effect on the morphology and the hepatic enzymes of the liver. In conclusion, the extract of mango leaves decoction has adverse effect on the liver histology and the therapeutic dosage of tetracycline has no adverse effect on the histology of the liver. Keywords : Mango leaves, Tetracycline, Liver histology, Liver enzymes (AST and ALT)
Incentives, Job Satisfaction and Performance: Empirical Evidence in Italian Social Enterprises

The paper offers a contribution to the understanding of the relations between incentives, satisfaction and performance of employees in social enterprises. It starts by criticizing the general hypotheses of the principal-agent theory and especially that employee satisfaction is determined exclusively by the level of salary received. These criticisms are explained both by looking to the organizational definition of job satisfaction by Locke and by taking a behavioural economics perspective. Job satisfaction is thus assumed to derive from a composed mix of incentives received on the job, equity perceived and employee motivations. It is no longer possible to assume that the wage is the sole (not even the most important) variable influencing worker performance. This claim is especially valid in social enterprises, where worker performance is difficult to monitor and evaluate, while high intrinsic motivations can better explain job satisfaction. The empirical analysis helps to shed light on the determinants of job satisfaction and individual performance. Data was collected on 4,134 employees working in 320 Italian social cooperatives. The paper introduces the methodologies of categorical principal components analysis, factor analysis, and Rasch models to group the items of intrinsic and extrinsic satisfaction, motivations and fairness. The data was then analysed by means of linear regression where the dependent variables are not only the stated degree of job satisfaction, but also satisfaction with extrinsic and intrinsic aspects of the job. The models come to demonstrate the particular relevance of employee motivations and fairness perceived in explaining job satisfaction and its sub-dimensions. Furthermore, organizational perceptions and the work environment are found to be significant as are individual perceptions and motivations.