Miracle-dz/UniFAR-FTUs huggingface dataset:
Obstetrics and Gynecology Emergency Department Activity during Lockdown in a Teaching Hospital, Hub Center, for COVID-19

Background The lockdown related to the SARS-CoV-2 pandemic has imposed profound changes in the interaction of the population with hospitals and emergency departments. The main aim of this research was to evaluate the impact of lockdown on the activity of obstetrics and gynecology emergency department (OGED) in a teaching hospital, hub center, for COVID-19. Methods The study considers all visits to the OGED with their different triage color codes that represent the clinical severity of each case (from the most severe to the least one: red, yellow, green, white). Data were selected through the “PSNet” triage program and collected anonymously. We analyzed frequency distributions of the variables separately for each woman and calculated mean and standard deviations for continuous variables. We then analyzed the association between factors and outcomes for categorical variables (expressed as a number and percentage of the total) using the chi-square test (χ2). The level of significance was established with p < 0.05. Statistical analysis was performed using SPSS Statistics V20.0. Given the fact that the study has a retrospective observational nature and it is based on an anonymous routine database, approval by the Local Ethics Committee was not necessary. Results The relative decrease of patients presenting to OGED in 2020 was −50.96%. The percentage of nonpregnant women was significantly lower in 2020 compared to 2019 (p ≤ 0.0001; Δ = −79.46%). Regarding the obstetric group, we saw an important decrease of visits in 2020 compared to 2019 (p < 0.0001; Δ = −40%). The prevalence of yellow codes was significantly higher in 2020 (Δ = +29.72%), while that of white (Δ = −61.58%) and green (Δ = −52.22%) codes was significantly lower (p ≤ 0.0001). Comparing the diagnoses at discharge, we could highlight significant reductions in 2020 for more than one diagnosis: bleeding (p ≤ 0.0001; Δ = −70.42%), pain (p ≤ 0.0001; Δ = −81.22%), urinary diseases (p = 0.004; Δ = −75.64%), and gastrointestinal diseases (p ≤ 0.0001; Δ = −87.50%). Conclusions An evident change emerged in relation to the dynamics between the local obstetrical and gynecological population, and OGED resources. The COVID‐19 lockdown greatly reduced the rate of admission to OGED without time-related obstetric and gynecological complications. The reduction of admissions suggests a more appropriate use of the ED by patients that may inspire future policies for the implementation of emergency services.
Giant optical birefringence in ensembles of semiconductor nanowires

Giant birefringence is demonstrated in ensembles of randomly grown, vertically aligned semiconductor nanowires. Bottom-up fabrication of epitaxial semiconductor nanowires grown using the vapor-liquid-solid mechanism yields a highly anisotropic photonic metamaterial. The birefringence in the material is shown to depend on the nanowire length. Short nanowires with a volume filling fraction around 50% exhibit the strongest birefringence, in agreement with effective medium theories. A large difference is found between the in-plane and out-of-plane refractive indices of Δn=0.8, exceeding by a factor of 75 the natural birefringence of quartz and by more than a factor of 2 that of inverted artificial materials.
Pontryagin Duality and the Structure of Locally Compact Abelian Groups

1. Introduction to topological groups 2. Subgroups and quotient groups of Rn 3. Uniform spaces and dual groups 4. Introduction to the Pontryagin-van Kampen duality theorem 5. Duality for compact and discrete groups 6. The duality theorem and the principal structure theorem 7. Consequences of the duality theorem 8. Locally Euclidean and NSS-groups 9. Non-abelian groups.
Dentin Sialoprotein/Phosphophoryn (DSP/PP) as Bio-Inductive Materials for Direct Pulp Capping

Conventional direct pulp capping, such as calcium hydroxide (Ca(OH)2) or silicate products, usually induces an inflammatory reaction to provoke pulp regeneration. Phosphophoryn (PP) and dentin sialoprotein (DSP), the two most abundant non-collagenous proteins in the dentin matrix, are responsible for dentin mineralization, pulp cell migration, and differentiation. Here we examined the PP and combined DSP/PP as bio-inductive pulp capping materials by in vitro and in vivo tests. Firstly, the effects of the PP dose on pulp cell migration and matrix protein expression were examined by an agarose bead test. Secondly, the role of recombinant DSP (recDSP) and recDSP/PP on stimulating DSP-PP transcript expression was examined by RT-PCR. DSPP mRNA was also knocked down by RNA interference (RNAi) to examine their functions on dentin matrix mineralization. Finally, we used ferret animal models to test PP and recDSP/PP acting as capping agents on in vivo pulp responses and reparative dentin formation. The result showed that intermediate-dose PP was the most effective to enhance cell migration and differentiation. RecDSP/PP strongly enhanced the DSP-PP transcript expression, while inhibition of DSPP mRNA expression by siRNAs partially or completely affected dental pulp cell mineralization. The in vivo results showed that intermediate-dose PP and recDSP/PP proteins induced less pulp inflammation and promoted reparative dentin formation. Contrarily, conventional calcium hydroxide induced severe pulp inflammation. With these findings, DSP and PP could serve as capping agents for pulp capping therapy.
Snowflake formation and its regional characteristics

Snowflake formation and its regional characteristics were studied using data obtained from past observations of snowfall phenomena, since snowflake formation contributes substantially to snowfall amount. The collision of component crystals occurred more easily if there was a high concentrations of snow crystals in the atmosphere. Snowflake formation occurred more easily with the progress of growth stages of a snow cloud. The other important parameter was the range of fall speeds. On the other hand, coalescence occurred more easily with temperature rise and with larger component crystals. There were regional characteristics in which snowflake formation become more active toward inland. The regional characteristics can be explained by the abovementioned results obtained from observations.
A Survey of Entrepreneurship Education and Its Effect on Students' Involvement in Business in School and after School

This study was undertaken to assess the extent to which the introduction of entrepreneurship education (EEd) has helped in building entrepreneurs in school and after school following the introduction of the course into Nigerian educational system more than a decade ago. The assessment was measured based on students’ involvement in entrepreneurial activities while in school and their involvement in different business activities after school. Therefore, the entrepreneurs were selected purposively considering graduates entrepreneurs from The Federal Polytechnic Offa between 2010 - 2021 who resides in Offa, from the Federal polytechnic area/ Abuja area to Olofa way area. Questionnaire was used to gather data in which 240 questionnaires were administered to the entrepreneurs, out of which 219 were successfully returned. The questionnaire returned were made up of 74 Full-Time (FT) National Diploma (ND) graduates representing 34%, 76 Part-Time (PT) ND graduate representing 35% and 69 Higher National Diploma (HND) graduates representing 32%. After collection of data which was presented in pie charts, the Z-test about proportion and binary logistic regression model were used in analyzing the data. The result of the analysis revealed that, the proportion of graduates’ involvement in business activities and changing mindset to business activities due to entrepreneurship education does not significantly varies between graduates that were involved in business while in school and graduates that were involved in business after school. A similar finding in changing mindset to do business while in school also revealed that proportions of graduated students that are participating in business activities after school and graduated students that participated in business activities while in school, that EEd in school has influenced in changing their mindset to do business are significantly the same. Also, discovered is that academic performance in EEd does not significantly determine a student involvement in business activities while in school or after school. Based on the findings, the stakeholders are advised to improve on the course content of EEd in tertiary institution for more participation and encourage those with a small- scale business venture.
Presence of Varicella Zoster Virus DNA in Saliva May Be Associated with the Severity of Ramsay Hunt Syndrome

Background: The relationship between varicella zoster virus (VZV) collected from saliva and Ramsay Hunt syndrome (RHS) remains unclear. Therefore, this study aimed to investigate whether VZV DNA in saliva alters the clinical symptoms and prognosis of RHS. Methods: To measure the severity of clinical symptoms of 100 RHS patients, the initial House–Brackmann (HB) grade and associated symptoms were evaluated. The final HB grade at the end of treatment was measured to determine the prognosis. Electroneurography (ENoG) was performed on four facial muscles, including the frontalis, oculi, nasalis, and oris. Results: Salivary VZV DNA was isolated from 72 patients with RHS. The VZV DNA-positive group was 34.023 times more likely to have severe initial HB grade than the control group (95% CI, 3.21–359.68; p = 0.003). There were no significant differences in final HB grade. All ENoG values of the VZV DNA-positive group were significantly higher than those of the control group (frontalis, p = 0.003; oculi, p = 0.001; nasalis, p < 0.001; oris, p = 0.037). Conclusions: RHS patients with salivary VZV DNA have more severe clinical symptoms than the control group. There were no differences in prognosis and associated symptoms. A VZV DNA test using saliva samples of patients with RHS can evaluate the clinical symptoms and provide early confirmation of VZV infection, enabling timely treatment in a non-invasive way.
An Approach to Blood and Blood Product Transfusion/Reactions

Objective: Transfusion of blood and blood products is life-saving in the right indication; however, it may cause serious complications that may lead to mortality. This study aimed to determine the level of knowledge of allied health personnel about blood and blood product transfusion and to raise awareness about this issue as a result. Materials and Methods: In our study, 191 assistant healthcare professionals serving the adult age group in Konya Training and Research Hospital were surveyed with 24 questions via the website. Results: The rate of correctly knowing all the symptoms related to the transfusion reaction was 31.9%, and 37.6% of the signs. After the grouping of years of service, the rate of correctly knowing transfusion symptoms and signs was similar between the groups, while the rate of knowing the right approach in case of reaction was higher in those with a service year of >20 years. The rate of recognizing the symptoms suggestive of transfusion reaction was higher in those who received transfusion training compared to those who did not receive training (39.1% - 25.3%). Conclusion: It was deduced that the training should be repeated at frequent intervals since it was determined that the rate of correct answers to the survey questions was high among those who have worked in the profession for a longer period and those who have received transfusion training.
Examining the Relationship between Work Stressors and Auditors’ Job Performance

Workplace stress is a common problem in all types of occupations, and from the highest to the lowest levels of management. Auditors are not an exception to stress, particularly for those working in audit firms. To mitigate the auditors’ stress level, it is crucial for the management to identify work stressors on their job performance. This study aims to examine the relationship between work stressors and auditors’ job performance. Specifically, this study chose five potential work stressors namely, role ambiguity, work overload, time pressure, work/family conflict and salary and compensation. Using a questionnaire-based survey of 102 auditors, this study shows that role ambiguity and salary and compensation have a significant relationship with auditors’ job performance. On the other hand, this study shows that work overload, work/family conflict, and time pressure do not have a significant relationship with auditors’ job performance. The findings in this study provide an understanding for management of the work stressors that could affect the auditors’ job performance. Understanding this would assist the auditors to manage their stress properly, which could positively improve their performance.
Timing and Splitting of Nitrogen Side-Dress Fertilization of Early Corn Hybrids for High Grain Yield

ABSTRACT Currently, most nitrogen fertilizer is side-dressed when corn is in the four (V4) to eight (V8) expanded leaf stage. However, recent studies have shown that modern hybrids take up high amounts of nitrogen during grain filling. This indicates that a late nitrogen fertilization, at the time of crop flowering, may be important to optimize corn agronomic performance. This study aimed to evaluate the effect of the timing and splitting of nitrogen side-dress application on the agronomic performance of early [. ]
Post-Acute COVID-19 Sequelae in a Working Population at One Year Follow-Up: A Wide Range of Impacts from an Italian Sample

Long COVID-19 is a term used to describe the symptomatic sequelae that develop after suffering from COVID-19. Very few studies have investigated the impact of COVID-19 sequelae on employment status. The aim of this research was to characterise sequelae of COVID-19 in a population of workers who tested positive for COVID-19, with a follow-up within one year of the acute illness, and to analyse the possible association between this and changes in the workers’ occupational status. In this retrospective cohort study, a questionnaire was administered to 155 workers; descriptive, univariate (chi-square tests), and multivariate (logistic regression model) analyses were carried out. The mean age was 46.48 years (SD ± 7.302); 76 participants were males (49.7%), and 33 participants reported being current smokers (21.3%). Overall, 19.0% of patients reported not feeling fully recovered at follow-up, and 13.7% reported a change in their job status after COVID-19. A change in occupational status was associated with being a smoker (OR 4.106, CI [1.406–11.990], p = 0.010); hospital stay was associated with age > 46 years in a statistically significant way (p = 0.025) and with not feeling fully recovered at follow-up (p = 0.003). A persistent worsening in anxiety was more common in women (p = 0.028). This study identifies smoking as a risk factor for workers not able to resume their job; furthermore, occupational physicians should monitor mental health more closely after COVID-19, particularly in female workers.
Ivermectin: A Controversial Focal Point during the COVID-19 Pandemic

The SARS-CoV-2 pandemic has confirmed the apocalyptic predictions that virologists have been making for several decades. The challenge the world is facing is that of trying to find a possible treatment, and a viable and expedient option for addressing this challenge is the repurposing of drugs. However, in some cases, although these drugs are approved for use in humans, the mechanisms of action involved are unknown. In this sense, to justify its therapeutic application to a new disease, it is ideal, but not necessary, to know the basic mechanisms of action involved in a drug’s biological effects. This review compiled the available information regarding the various effects attributed to Ivermectin. The controversy over its use for the treatment of COVID-19 is demonstrated by this report that considers the proposal unfeasible because the therapeutic doses proposed to achieve this effect cannot be achieved. However, due to the urgent need to find a treatment, an exhaustive and impartial review is necessary in order to integrate the knowledge that exists, to date, of the possible mechanisms through which the treatment may be helpful in defining safe doses and schedules of Ivermectin.
Observable consequences of a hypothetical transient deviation from Quantum Mechanics

The conflict between Quantum Mechanics (QM) and the intuitive concepts of Locality and Realism (LR) is manifest in the correlation between measurements performed in remote regions of a spatially spread entangled state. In this paper, it is hypothesized that transient deviations (from the values predicted by QM) occur if the correlation is measured in a time shorter than L/c, where L is the spatial spread of the entangled state and c is the speed of light. In this way, the conflict is solved by changing QM minimally. Under general assumptions, it is obtained a mathematical model of the process that reproduces the QM value after a time longer than L/c has elapsed. One of the predictions of this model is that oscillations of the rate of coincidences should exist, with a main frequency lower than c/4L. An experiment able to reveal these oscillations is shown to be accessible, by placing stations at about 5 Km and reaching a coincidence rate about 3E5 1/s (a value already obtained at the laboratory scale). This means a test of QM vs LR of a completely new type, with several practical and theoretical advantages.
Development of Geometry Teaching Materials Assisted Geogebra Android to Improve Mathematical Connection Ability

This research aims to develop valid, practical, and effective geometry teaching materials with the help of GeoGebra android to improve students' mathematical connection abilities. The method used in this research is research and development. The developing process of teaching materials uses the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The analysis phase includes an analysis of the needs of learning resources, curriculum, and materials. The design phase includes making a framework of teaching materials, determining reference books, and preparing teaching materials assessment instruments. The development phase includes module development, expert validation, and revision of teaching materials. The implementation phase is the testing phase of teaching materials that are validated and revised to students. The evaluation phase is to analyzes the strengths and weaknesses of the teaching materials that have been tested. The criteria of quality of teaching materials are validity, practicality, and effectiveness. This teaching material is declared valid by assessing the material and media expert with an average of 89% and 85%, respectively. In addition, the module was declared practical by the results of the student response questionnaire, with an average of 78%. Furthermore, based on the results of the student’s mathematical connection ability test, teaching materials are effective in helping students to understand geometrical material and improve their mathematical connection abilities. Based on these results, it can be concluded that the GeoGebra android-assisted teaching materials developed are valid, practical, and effective.
Modelling the star formation histories of nearby elliptical galaxies

Since Lick indices were introduced in 1994, they have been used as a source of observational data against which computer models of galaxy evolution have been compared. However, as this thesis demonstrates, observed Lick indices lead to mathematical ill-conditioning: small variations in observations can lead to very large differences in population synthesis models attempting to recreate the observed values. As such, limited reliance should be placed on any results currently or historically in the literature purporting to give the star formation history of a galaxy, or group of galaxies, where this is deduced from Lick observations taken from a single instrument, without separate verification from at least one other source. Within these limitations, this thesis also constrains the star formation histories of 21 nearby elliptical galaxies, finding that they formed 13.26 +0.09 -0.06 Gyrs ago, that all mergers are dry, and that galactic winds are formed from AGN activity (rather than being supernovae-driven). This thesis also finds evidence to support the established galaxy-formation theory of “downsizing”. An existing galactic model from the literature is examined and evaluated, and the reasons for it being unable to establish star formation histories of individual galaxies are ascertained. A brand-new model is designed, developed, tested and used with two separate data sets, corroborated for 10 galaxies by data from a third source, and compared to results from a Single Stellar Population model from the literature, to model the star formation histories of nearby elliptical galaxies.
Healthcare associated infection in maternity and pediatric hospital, Arar, Saudi Arabia

Introduction: Healthcare-associated infections (HAIs) are avoidable complications from health care of health care, result in significant patient morbidity and mortality) and prolong the duration of hospital stay and economic cost. It used as an accurate indicator of the quality of health care system. The aim of the current study was to analyze the HAIs rates, to define how many and what kind of HAIs were occurred, the causative organism, type of drugs used in treatment of infection and to identify the risk factors associated with HAIs. Method: A nested case-control study included women hospitalized for more than 48 hours at obstetrics and gynaecology wards in the maternity and pediatrics hospital. Results: Overall incidence rate of HAIs was (7.8%). Staphylococcus aureus was the most frequent isolated pathogen (26.3%) followed by, E. coli (21.6%). Urinary tract infection was the most common type (49.3%). Women hospitalization more than 7 days, exposed to indwelling urinary catheter and peripheral IV catheter, aged 35 years or above, underwent to surgical operation and diabetic were at high risk of HAIs(OR >1.5). Conclusion: A Healthcare-associated infection requires intensified monitor and implementation of various effective prevention policies to reduce the occurrence of HAIs.
Simplified Automatic Atmospheric Correction for THEMIS Infrared Data

Thermal infrared spectral data from the Thermal Emission Imaging System (THEMIS) on Mars Odyssey can provide diagnostic information to characterize Martian surface compositions. Accurately isolating the atmospheric contribution from the thermal radiance of THEMIS data is essential for surface mineralogy analysis. In this work, we present improved semi‐automatic and fully automated tools to simplify the traditional atmospheric correction method for THEMIS data. Both methods use the Thermal Emission Spectrometer surface emissivity data but in different ways. These two methods are applied to several locations that have been well documented in previous studies, to assess their capability of determining surface spectral features. The fully automatic method demonstrates its simplicity, viability, and robustness by which more consistent results have been generated for the same area across multiple THEMIS images and for areas with large topographic gradients. The tools developed in this work will broaden the utilization of THEMIS infrared spectral data to the wider planetary science community.
Pengaruh Kepemimpinan Kepala Sekolah dan Disiplin Kerja terhadap Kompetensi Profesional Guru

The purpose of this study is to test the influence of principal's leadership and work discipline on the professional competence of teachers. This research is a quantitative. The paper used questionnaire and interview sheet as instrument. The result showed that principal's leadership and work discipline both partially and simultaneously influenced the professional competence of teachers. The paper recommends to more concern on principal's leadership and work discipline where the school would change professional competence of teachers.