Miracle-dz/UniFAR-FTUs huggingface dataset:
Has the current global financial crisis significantly affected momentum profitability?

Abstract In this study, we examine the behavior of stock price changes in an emerging market to search for possible momentum incidents. Our findings indicate that the existence of momentum can be characterized by the state of the economy, which is significantly correlated with the down market. We argue that this is due to investors, who have diminishing marginal utility of wealth and, in turn, behave in a risk-averse manner, resulting in loser portfolios being responsible for the vast majority of the observed momentum profitability. Furthermore, we find that momentum profitability is stronger with longer formation and holding periods, despite few cases of winners’ return reversals. Our findings remain robust after controlling for size and book-to-market and earnings-to-market ratios.
Design of Outer-Rotor Permanent-Magnet-Assisted Synchronous Reluctance Motor for Electric Vehicles

Today’s automotive industry has focused its studies on electric vehicles (EVs) or hybrid electric vehicles (HEVs) rather than gasoline-powered vehicles. For this reason, more investment has been made in electric motors with high efficiency, high torque density, and high-power factor to be used in both EVs and HEVs. In this study, an outer-rotor permanent-magnet-assisted synchronous reluctance motor (PMaSynRM) with a new rotor topology was designed for use in an EV. The design has a transversally laminated anisotropic (TLA) rotor structure. In addition, neodymium-iron-boron (NdFeB) magnets were used in rotor topology. The stator slots were designed as distributed windings, so torque ripples are minimized. At the same time, the maximum electromagnetic torque was achieved. The analysis of the designed motor was carried out using the finite element method (FEM). Optimal values of motor parameters were obtained by improving the rotor geometry of the three-phase PMaSynRM in order to obtain maximum torque and minimum torque ripple in the design. The motor is in a 48/8 slot/pole combination, a speed of 750 rpm and a power of 1 kW. The simulation results showed that the design achieved maximum torque and minimum torque ripple.
Ring-shaped corona proteins influence the toxicity of engineered nanoparticles to yeast

Engineered nanoparticles (ENPs) have found applications in different fields varying from medical science to electronics. The increasing interest in these materials, fuelled by the potential benefits of their use, has not as yet been matched by a concerted effort to gain a full understanding of potential negative effects they may have on the environment and on human health. In a biological environment, ENPs become coated by a so-called “protein corona”, the structure of which defines their biological identity. The present research set out to characterize the interaction between cadmium sulphide quantum dots (QDs) and yeast cells, isolating and identifying the set of proteins which were adsorbed on the QD surface using liquid chromatography-mass spectrometry followed by an in silico protein analysis. Ring-shaped proteins were particularly prone to binding, and electrostatic and hydrophobic interactions were central for this interaction. QDs strongly increased the transcript levels of genes encoding the major hard corona proteins indicating a mechanism of genetic compensation in response to the “physical sequestration” of these proteins in the QD corona in vivo. The toxicological implications of the protein corona formation were explored using yeast mutant strains carrying deletions in genes encoding the corona proteins. Interestingly, these mutants were tolerant to doses of QDs that were lethal to wild type cells. These results reveal that the hard protein corona mediates the toxicity of QDs in yeast and a major resolution of this interaction at the molecular level is crucial for a better understanding of the in vivo response of ENPs.
Ab initio Calculations of the Electronic Properties of CuIn(S,Se)2 and other Materials for Photovoltaic Applications

In the first chapter of this thesis, we will present the principle of PV solar cells with a special emphasis on the CIS absorber. In the second and third chapter, we will describe the methods we used to treat the many body problem. Finally, in the last chapter, we will apply methods presented in chapter 2 and 3 to CIS and pay a particular attention to the dependence of the bandgap on the anion displacement and the concentration of defects.
Determination of mRNA Expression of Typical Proteins of Tight Junctions in the Intestinal Mucosa of Broilers (Gallus gallus domesticus)

Tight junctions are mainly formed by two types of proteins; claudins and occludin, both of which are fundamental to maintain the integrity and barrier function of the intestinal epithelium. This barrier function allows for the absorption of nutrients, mainly by transcytosis; however, in birds, 90% of the substances are absorbed by paracellular mechanisms. Despite this, claudins present in the different parts of the intestinal tract of adult chickens are not known, much less their functional role. This study aimed to determine the presence of mRNA of claudins 1, 2, 3, 5, 10, 12, 16 and occludin, in the different regions of the intestine (duodenum, jejunum, ileum, cecum, and rectum) in chickens (Gallus gallus domesticus) through RT-PCR. To meet this goal, 7 weeks old roosters destined for slaughter and chicken embryos of 16 days of incubation (positive control) were used. For all the processed samples, amplicons of the expected size were obtained; claudin 1 (662 pb), claudin 2 (162 pb), claudin 3 (185 pb), claudin 5 (224 pb), claudin 10 (687 pb), claudin 12 (738 pb), claudin 16 (191 pb) and occludin (430 pb). To corroborate these findings, obtained amplicons were sequenced and, subsequently, a basic alignment was performed on the NCBI, obtaining a correlation of 100% with the original sequences in all analyzed samples. To our knowledge, the present work represents the first written report regarding the presence of mRNA of the main proteins involved in tight junction formation throughout the intestinal tract of domestic chickens of 7 weeks of age. These findings will allow elucidating the specific function of each of the reported proteins in the process of paracellular absorption in chickens.
Determine Augmented Risk Association Between Health Problems and Screen Exposure to Electronic Gadgets in University Students, Islamabad During COVID-19 Pandemic

Now a day, frequency of health problems like myopia, headache, insomnia, dry-itchy eyes and wrist/neck or back pain due to bad posture in young people is increasing day by day. Therefore, this study determine the level of augmented risk association between screen-time exposure on electronic gadgets and development of ophthalmic, postural, psychological and neurological health harms in air university (AU) students of Islamabad, Pakistan in context of South Asian culture. A cross-sectional quantitative study design was selected for a period of 11 months to collects data using an online questionnaire. After that data was analyzed on SPSS 23 to check percentages, frequencies, means, standard deviation and chi-square test. High risk of development of back-pain, redness or burning sensation in eyes, difficulty in decision making and depression was found significant association with usage of electronic gadgets of more than 6 hours per day in students (p<0.05). In what manner does the electronic-device was close or far from students’ eye also showed strong relationship with forgetfulness and dementia (p<0.05). Therefore, students who are continuously exposed to gadgets ‘screens presented with various ill health problems which in later life turns into more bigger physical and psychological issues that increases the disease burden of Pakistan.
Knowledge and attitude among outpatient women visiting a healthcare center in northern Iran regarding breast self-examination: a cross-sectional study

PurposeBreast cancer is one of the most prevalent malignancies worldwide. This study aimed to compare the level of knowledge and attitude of females regarding Breast cancer and to determine the role of knowledge, attitude and barriers in performing regular self-examination.Design/methodology/approachNon-physician females aged 18 years old or above were enrolled in this cross-sectional study in two groups of usual clients and healthcare staff from January 2018 to January 2019 from a healthcare center in Sari, a major city in the northern district of Iran. A questionnaire was used to score the participants’ knowledge and attitude levels using questions about the participants' knowledge and attitude towards Breast cancer along with their status on Breast self-examination and barriers. Mean scores were used for statistical analysis using SPSS V25. p < 0.05 was considered significant.FindingsA final dataset of 279 females were collected. A significant difference in the knowledge and attitude regarding breast cancer was found between the two study groups (p < 0.001). The practice of BSE was significantly lower in the usual clients compared to non-physician healthcare staff (p < 0.001). The most frequent barriers for not performing a regular BSE were fear of finding a mass in usual clients (17.8%) and lack of confidence in healthcare staff (3.8%). Research limitations/implicationsLimitations include single-centered sample selection.Practical implicationsGiven the importance of early detection in breast cancer prevention and the general taboo regarding breast cancer screening methods in certain parts of the world, leading to poor results in early detection and prevention, the authors believe that it is of superior importance to address and promote positive attitudes in general population towards breast self-examination.Originality/valueGiven the importance of early detection in breast cancer prevention, and the general taboo regarding breast cancer screening methods in certain parts of the world, leading to poor results in early detection and prevention, the authors believe that it is of superior importance to address and promote positive attitudes in general population toward breast self-examination. The authors of this study believe that the manuscript represents honest and original work.
Causal Relationships Among Tourism, International Trade, Pollution, and Economic Growth: Evidence from Central Asian Countries

This study investigates the cointegration and causality among environmental quality (CO2 emissions), international trade, economic growth, and tourism of five Central Asian Republic States (CARS-5), namely Azerbaijan, Tajikistan, Kazakhstan, the Kyrgyz Republic, and Uzbekistan, for 1992–2018. To this end, we employed the Johansen cointegration approach, modified Wald tests, and the Toda & Yamamoto (1995) approach. The empirical results showed that the variables were cointegrated in the long run, and the Granger causality test results revealed the existence of causality in the series. Furthermore, the empirical results validated both the export-led and the tourism-led growth hypotheses for Tajikistan and Kazakhstan. These findings suggest that the CARS-5 should develop appropriate and prudent public policies to stimulate sustainable economic development.
Integrated Analysis of the Gene Expression Profiling and Copy Number Aberration of the Ovarian Cancer

Objective: DNA copy number alterations and difference expression are frequently observed in ovarian cancer. The purpose of this way was to pinpoint gene expression change that was associated with alterations in DNA copy number and could therefore enlighten some potential oncogenes and stability genes with functional roles in cancers, and investigated the bioinformatics significance for those correlated genes. Method: We obtained the DNA copy number and mRNA expression data from the Cancer Genomic Atlas and identified the most statistically significant copy number alteration regions using the GISTIC. Then identified the significance genes between the tumor samples within the copy number alteration regions and analyzed the correlation using a binary matrix. The selected genes were subjected to bioinformatics analysis using GSEA tool. Results: GISTIC analysis results showed there were 45 significance copy number amplification regions in the ovarian cancer, SAM and Fisher’s exact test found there have 40 genes can affect the expression level, which located in the amplification regions. That means we obtained 40 genes which have a correlation between copy number amplification and drastic up- and down-expression, which p-value ere overlapped with the several published studies which were focused on the gene study of tumorigenesis. Conclusion: The use of statistics and bioinformatics to analyze the microarray data can found an interaction network involved. The combination of the copy number data and expression has provided a short list of candidate genes that are consistent with tumor driving roles. These would offer new ideas for early diagnosis and treat target of ovarian cancer.
Analysing factors influencing fire frequency in Hwange National Park

ABSTRACT Detection of key factors driving fire frequency, especially in protected areas, is important for effective management of ecosystems. In this study, we used Generalized Linear Models to test the contribution of natural (NDVI, wind speed, dry matter productivity, soil moisture, percentage tree cover, elevation and temperature) and anthropogenic (distance from settlements) factors as predictors of fire frequency in Hwange National Park and adjacent areas. We used the Akaike Information Criterion (AIC) to evaluate the variable contribution to fire frequency. The model results indicated that all the variables that were used contributed significantly to fire recurrence (p < 0.05). Distance from settlements contributed the most to the model whilst dry matter productivity and annual average temperature were second and third respectively. Removal of distance from settlements from the model increased the AIC value to 1411.2 while removal of dry matter productivity and temperature resulted in AICs of 1269.9 and 1265.8 respectively. Results showed that settlements which are found in the vicinity of the protected area influence the recurrence of fires. Findings from this study can be used for strategic fire management and for the development of effective measures to minimize fire recurrence in a protected area.
Competencias directivas de la gestión del cambio en Institutos de Educación Superior Tecnológico Público

The purpose of this research was to determine the relationship between managerial competencies and change management of Institutes of Higher Technological Public Education, La Libertad Region, 2020. Methodology, basic type research, quantitative approach, non-experimental design, hypothetical-deductive method, a stratified probability sample of 112 participants. The survey technique with high reliability was used through Cronbach's Alpha of 0.988, for change management of 0.995. Results, it was determined that Kendall's Tau-b test = 0.561 and Spearman's Rho coefficient = 0.754 (high positive relationship), with a significance level of less than 1%. Conclusion, it was found that managerial competencies are directly and very significantly related to the management of change in Public Technological Higher Education Institutes, La Libertad Region, 2020, consequently, the research hypothesis is accepted. The development of managerial skills based on workshops is proposed; using specific and appropriate techniques to achieve the development of skills.
Evaluation of gum elastic bougie guided Proseal laryngeal mask airway insertion technique

Introduction: Endotracheal Intubation (ETI) is highest quality level for airway organization. LMA ProSeal™ (PLMA) insertion utilizing Gum Elastic Bougie (GEB) guidance, which has got 100% first attempt success rate, also requires laryngoscopy, hence nullifying its advantage of being a supraglottic airway device. We aimed to compare the hemodynamic responses associated with laryngoscopy assisted GEB guided PLMA placement with that of conventional endotracheal intubation. Method: Hundred normotensive ASA1 or 2 patients of either sex (age 18 to 40yrs) undergoing general anesthesia for elective surgery included and evaluated for pressor response. Following a uniform premedication and standard anesthesia technique (thiopentone + vecuronium), either of airway was placed and pulse rate, (beats/min); Mean blood pressure, MAP (mmHg) (at Tb = base line, T0 = just before laryngoscopy and PLMA/ETT placement, T1 = 1min, T3 = 3min, T5 = 5 min, T7 = 7 min after placement). Results: Patients demographics between the PLMA and ETT groups were similar. Following laryngoscopy and PLMA\ETT placement, both were associated with statistically significant increase in HR and MAP with respect to its basal value. Although it was less marked in case of PLMA Group, when comparison was made within individual Group. Duration of laryngoscopy and time of placement were longer in PLMA Group as compared to ETT Group (35.71 and 12.69 sec. vs 21.30 and 10.76 sec. respectively). ETT insertion was related with higher incidence of cough (p 0.05). Conclusion: Hence GEB guided PLMA method must be used as a reinforcement method in cases where standard insertion methods fall ineffective and in ineffectual tracheal intubation where the bougie is incidentally embedded into throat and quick control of the airway route is essential. Key words: Gum elastic bougie; Laryngeal Mask Airway; Hemodynamics; Pressor response Abbreviations: LMA – laryngeal mask airway; ETI – Endotracheal Intubation; GEB – Gum Elastic Bougie; ETT –Endotracheal tube; PLMA – Laryngeal Mask Airway ProSeal Citation: Upadhyay MK, Kumar G, Chaurasia A, Narang D. Evaluation of gum elastic bougie guided Proseal laryngeal mask airway insertion technique. Anaesth. pain intensive care 2021;25(3):338–344. DOI: doi.org/10.35975/apic.v25i3. 1531 Received: March 20, 2021; Reviewed: April 11, 2021; Accepted: May 11, 2021
Cellulose-Derived Carbon Fibers with Improved Carbon Yield and Mechanical Properties

The manufacture of high mechanical strength cellulose-based carbon fibers (CFs) is accomplished in a continuous process at comparably low temperatures and with high carbon yields. Applying a sulfur-based carbonization agent, i.e., ammonium tosylate (ATS), carbon yields of 37% (83% of theory), and maximum tensile strengths and Young's moduli up to 2.0 and 84 GPa are obtained already at 1400 °C. For comparison, the use of the well-known carbonization aid ammonium dihydrogenphosphate ((NH4)H2PO4), ADHP, is also investigated. Both the precursor and the CFs are characterized via elemental analysis, wide-angle X-ray scattering, Raman spectroscopy, scanning electron microscopy, and tensile testing. Thermogravimetric analysis coupled with mass spectrometry/infrared spectroscopy discloses differences in structure formation between ATS and ADHP-derived CFs during pyrolysis.
Resolution of Spike Overlapping by Biogeography-Based Optimization

There are many cases in which the separation of different sources from single channel recordings is important, for example, in fluorescence spectral overlap compensation, electrical impedance signaling, intramuscular electromyogram decomposition or in the case of spike sorting of neuron potentials from microelectrode arrays (MEA). Focusing on the latter, the problem can be faced by identifying spikes emerging from the background and clustering into different groups, indicating the activity of different neurons. Problems are found when more spikes are superimposed in overlapped waveforms. We discuss the application of Biogeography-Based Optimization (BBO) to resolve this specific problem. Our algorithm is compared with three spike-sorting methods (SpyKING Circus, Common Basis Pursuit and Klusta), showing statistically better performance (in terms of F1 score, True Positive Rate—TPR and Positive Predictive Value—PPV) in resolving overlaps in realistic, simulated data. Specifically, BBO showed median F1, TPR and PPV of 100%, 100% and about 75%, respectively, considering a simulated noise with the same spectral density as the experimental one and a similar power with highly statistically significant improvements of at least two performance indexes over each of the other three tested algorithms.
A Prospective Study of Mental Health, Well-Being, and Substance Use During the Initial COVID-19 Pandemic Surge

The COVID-19 pandemic has dramatically altered everyday life worldwide, and some individuals may be at increased risk for pandemic-related distress. In a U.S. community sample (N = 236, 64% female; 78% White; mean age = 30.3 years) assessed before COVID-19 and during the initial surge, we examined, prospectively, whether pandemic disruptions and a history of adverse childhood experiences (ACEs) were associated with changes in depressive symptoms, stress, sleep, relationship satisfaction, and substance use over time and with concurrent anxiety and peritraumatic distress. Negative pandemic-related events were associated with significantly higher depressive symptoms and stress and lower satisfaction over time as well as higher concurrent anxiety and peritraumatic distress. ACEs were associated with more negative pandemic-related events, which, in turn, associated with higher peripandemic depressive symptoms, stress, anxiety, and peritraumatic distress. Findings underscore that COVID-19 disruptions are associated with greater distress and that childhood trauma is a key axis of differential risk.
Exploring the Nitrogen Reservoir of Biodegradable Household Garbage and its Potential in Replacing Chemical Fertilizers in China

Biodegradable household garbage contains a large amount of nitrogen which could be used as organic fertilizers to produce organic foods, thus mitigating environmental pollution at the root. However, due to the complex composition of household garbage and its uneven distributions from urban to rural areas, it is not clear how large the biomass nitrogen reservoir is in a certain country or region. Here we took China as a case, systematically analyzed the amount of biodegradable household garbage resources and their nitrogen reservoirs. It was noted that the biodegradable household garbage mainly included food waste, waste paper and wood chips, with the amounts being 31.56, 29.55, and 6.45 million t·a− 1, respectively. Accordingly, the nitrogen reservoirs were 65.31×104, 6.80×104, and 3.81×104 t·a− 1 in China. Regardless of provinces or provincial capital cities, there were significant positive linear correlations between the gross domestic product and the amounts of foods wasted, indicating that China’s fast economic development was at the cost of huge food waste. However, if the food waste were used as organic fertilizers, chemical nitrogen fertilizers would have been greatly reduced. We found that food waste nitrogen reservoir accounted for 86% of the total, with its nitrogen reservoir being equivalent to 11% of the amount of actual absorption for synthetic nitrogen fertilizers (6.20 million t·a− 1) by agriculture plants in the country. Our findings provided a scientific basis for the classification and utilization of biodegradable household garbage, ensuring food security, and eliminating environmental pollution.