Miracle-dz/UniFAR-FTUs huggingface dataset:
Time-stepping stability of continuous and discontinuous finite-element methods for 3-D wave propagation

We analyse the time-stepping stability for the 3-D acoustic wave equation, discretized on tetrahedral meshes. Two types of methods are considered: mass-lumped continuous finite elements and the symmetric interior-penalty discontinuous Galerkin method. Combining the spatial discretization with the leap-frog time-stepping scheme, which is second-order accurate and conditionally stable, leads to a fully explicit scheme. We provide estimates of its stability limit for simple cases, namely, the reference element with Neumann boundary conditions, its distorted version of arbitrary shape, the unit cube that can be partitioned into six tetrahedra with periodic boundary conditions and its distortions. The Courant–Friedrichs–Lewy stability limit contains an element diameter for which we considered different options. The one based on the sum of the eigenvalues of the spatial operator for the first-degree mass-lumped element gives the best results. It resembles the diameter of the inscribed sphere but is slightly easier to compute. The stability estimates show that the mass-lumped continuous and the discontinuous Galerkin finite elements of degree 2 have comparable stability conditions, whereas the masslumped elements of degree one and three allow for larger time steps.
Improving maternal health:Women’s attitude to antenatal care utilization is crucial

The World Health Organisation in her 2018 release recommends that all women must have access to high quality care before, during and after childbirth to optimize maternal health. Women’s attitude towards antenatal care is crucial to her ability to access the requisite care. Findings reveal that women who do not receive care during pregnancy have worse pregnancy outcomes and risk maternal death. We advocate for more sensitization to change the attitude of pregnant women towards antenatal and intrapartum care. Correspondence to: Rosemary Ogu, Department of Obstetrics and Gynecology, Faculty of Clinical Sciences, College of Health Sciences, University of Port Harcourt, East West Road, Port Harcourt, Rivers State, Nigeria, Tel: +2348033129937; E-mail: rosemary.ogu@uniport.edu. ng
The Relationship of Self-control, Procrastination, Motivational Interference and Regret with School Grades and Life Balance

Abstract In this study, self-control, procrastination, motivational interference, and regret are regarded as determinants of school grades and of life balance (defined as the experience of a subjectively balanced life). Dealing with tasks in the academic field and in various other life arenas is typical for adolescents. The predictors are regarded as relevant for handling multiple alternative activities. Selfcontrol is seen as a resource associated with positive outcomes in people’s lives. The other variables are seen as tightly associated with handling multiple alternative activities in goal conflicts. The sample consisted of 348 tenth graders who completed a questionnaire during regular school lessons. Results of regression analyses showed that self-control was a significant predictor of school grades and life balance, while procrastination was only related to school grades, and that motivational interference as well as regret were associated with life balance. The significance of this differential pattern for adolescents’ lives is discussed. Keywords: School grades, life balance, self-control, procrastination, motivational interference ----- Der Zusammenhang von Selbstkontrolle, Prokrastination, motivationaler Interferenz und Bedauern mit Schulnoten und Lebensbalance Zusammenfassung Eine typische Herausforderung fur Jugendliche ist die Bewaltigung von Aufgaben im akademischen Bereich und verschiedenen anderen Lebensbereichen. Die vorliegende Arbeit betrachtet Selbstkontrolle, Prokrastination, motivationale Interferenz und Bedauern nach einer getroffenen Entscheidung als Determinanten von Schulnoten und Lebensbalance. Diese Pradiktoren werden fur die Bewaltigung multipler Handlungsalternativen als relevant angesehen. Wahrend Selbstkontrolle als generelle Ressource betrachtet wird, die mit verschiedensten positiven Ergebnisvariablen in Verbindung steht, werden die anderen drei Determinanten in Zusammenhang mit dem Umgang mit Konflikten bei multiplen Handlungsalternativen gesehen. An der Studie nahmen 348 Zehntklassler teil, die wahrend der regularen Unterrichtszeit einen Fragebogen ausfullten. Die Ergebnisse der Regressionsanalyse zeigten, dass Selbstkontrolle ein signifikanter Pradiktor fur Schulnoten und Lebensbalance war, wohingegen Prokrastination nur mit Schulnoten zusammenhing und motivationale Interferenz sowie Bedauern mit Lebensbalance verknupft waren. Die Bedeutung dieses differenziellen Musters wird im Hinblick auf die Lebensbewaltigung von Jugendlichen diskutiert. Schlagworter: Schulnoten, Lebensbalance, Selbstkontrolle, Prokrastination, motivationale Interferenz
GENOTYPE X ENVIRONMENT INTERACTIONS AND STABILITY ANALYSIS IN ELITE LINES OF GARLIC (ALLIUM SATIVUM L.)

Genotype response to changeable environmental factors as ex-pressed through genotype x environment interaction offers important information to growers as end users . Twenty five genotypes of garlic (Allium sativum L) were evaluated for their stability, with respect to yield and its contributing traits, in three different nutritional environments created with respect to different fertility levels for two consecutive years. The pooled analysis of variance indicated that genotype x environment interactions were highly significant for the characters viz., number of leaves per plant, length of leaf, yield per plant (weight of bulb), number of cloves per bulb, diameter of clove and average weight of clove and these characters were subjected to stability analysis. Linear as well as non-linear component of GxE interactions were found to be significant for these characters indicating that response of genotypes varied in different environments. In general, all the genotypes did not show any uniform stability and linear pattern for all the traits. Genotypes Bombay White Garlic (27.48,1.0934 and -0.0427), Dholi Garlic-1 (11.50, 1.3196 and -0.4346), Surajgarha Garlic Pink (23.87, 1.2118 and-0.5042) and Munger Garlic White (22.28,0.6110 and -0.1628) had high mean value over population mean, closer to one regression coefficient (b i ) and low and non-significant deviation from regression and was highly stable for yield per plant. These genotypes are likely to perform well in all the six environments.
Modelling the impacts of trade on employment and development: A structuralist CGE-model for the analysis of TTIP and other trade agreements

In recent years, a number of studies have been put forth to assess the potential economic effects of the EU-US trade agreement - the Transatlantic Trade and Investment Partnership (TTIP). Most studies report gains for the TTIP-member states. However, the commonly applied CGE models contain questionable assumptions such as full employment. In this report, we present a structuralist CGE-model for the assessment of TTIP with fundamentally different key assumptions with regard to the determination of output, income and employment. These distinct closures are applied within the standard trade liberalization setting including the reduction of tariffs and non-tariff barriers. Importantly, the model delivers results with regard to (i) macroeconomic effects including employment and wages, (ii) sectoral (20 Sectors) and (iii) regional (11 countries/regions) effects. Even though small but positive income effects are reported, the diverging results among TTIP-members, negative effects for real wages for low skill labor and the rest of the world, in particular developing countries, should be highlighted. An extensive sensitivity analysis confirms potential risks associated with TTIP.
Increasing returns to scale without sorting or agglomeration economies

Economic explanations for the urban wage premium (UWP) fall in two categories: sorting of more productive individuals into larger cities, or agglomeration externalities. We present a third hitherto neglected mechanism: a statistical artifact arising from sampling lognormally distributed wages. We show how this artificial UWP emerges, systematically and predictably, when the variance of log-wages is larger than twice the log-size of workers sampled in the smallest city. We present an analytic derivation of this connection between lognormals and increasing returns to scale using extreme value theory. We validate our results analyzing simulated data and real data on more than six million real Colombian wages across more than five hundred municipalities. We find that when taking random samples of $1\%$, or less, of all Colombian workers the estimated real and artificial UWP are both $7\%$, and become statistically indistinguishable, yet both significantly larger than zero. This highlights the importance of working with large samples of workers. We propose a method to tell whether an estimate of UWP is real or an artifact.
Development of an Integrated Framework to Investigate Enterprise Information Systems Adoption: Managers’ Insights

This study attempts to isolate the factors contributing to successful adoption of EIS by gathering the perspectives of senior professionals working with such systems. This paper uniquely uses dimensional analysis to find that organizations require correctly and completely implemented systems that are widely accepted by the end users and result in significant process improvements. These process improvements are likely to be controlled by various organizational factors and should be regularly assessed in terms of performance indicators for growing or changing needs of the organization.
THE USE OF ALOE CONSTITUENTS IN SELF-ADMINISTERED CANCER TREATMENT

Complementary and alternative medicines (CAMs) include many different biologic substances that may be ingested or applied topically in an effort to mitigate disease. One source of such substances is the Aloe, a plant that has been used since antiquity to treat a multitude of conditions, and which is now being touted as a potential natural aid in the fight against cancer. There are many different classes of nutrient and modulatory chemicals isolated from Aloe, and some have now been investigated for their anticancer activities. This review will focus on the anticancer properties of four main Aloe components – aloe-emodin, aloin, acemannan and b-sitosterol – in relation to their activities against cells in human cancers and potential abilities to interfere with conventional chemotherapeutics. We build upon this background to consider the validity for Aloe in cancer care. It is evident, after considering both in vitro and in vivo findings, that there needs to be further independent studies examining the safety and efficacy of ingestion of Aloe products for human use, proper standardization of product content, and systematic identification and characterization of the wide variety of Aloe constituents. Aloe is a genus of perennial succulent plants that thrive in hot, dry climates (Choi et al., 2002; Molassiotis et al., 2005). As with many plants, its cosmetic and health-related potentials have been explored since antiquity, and it finds current use in a multitude of cosmetic, dermatologic and other healthcare products (Reynolds and Dweck, 1999; Ulbricht et al., 2007). However, more recently it has fallen into that group of biologics that have found favour in the popular view as a natural remedy for chronic diseases such as cancer. In this review we explore the emerging issue of ‘natural medicines’, the anticancer activities reported for Aloe itself, and provide a perspective on whether Aloe has a place in rational support of the cancer patient. Keywords: Natural products, alternative medicine, aloe, aloe-emodin, aloin, acemannan, cancer. Proceedings of the Nova Scotian Institute of Science (2012) Volume 47, Part 1, pp. 59-89
Experiential Pedagogy and Shared Vision: A Focus on Identification of Business Opportunities by Nigerian University Students

The goal of this study was to determine the effects of entrepreneurship pedagogy on students’ shared vision and identification of business opportunities. The study adopted quantitative approach with a descriptive research design to describe the effects of entrepreneurship on university students based on the objective of the study. Survey was be used as quantitative research method which enhanced the determination of statistically significant results. The population of this study included all students in the four selected universities in Nigeria. Data was analyzed with the use of Statistical Package for Social Sciences (SPSS). Hierarchical multiple regression was used as statistical tool of analysis to show the distinctive predictive effect of students’ shared vision over and above the effects of entrepreneurship pedagogy on students’ identification of business opportunities. The findings of the study revealed that the pedagogical approach adopted can stimulate a shared vision in students to identify business opportunities. Thus it was recommended that experiential pedagogical approach can be used to stimulate business opportunity identification potentials in entrepreneurship students.
Bronchial Hyperresponsiveness in Farmers: Severity and Work- Relatedness

Abstract OBJECTIVE: To evaluate the prevalence of respiratory symptoms, lung function and bronchial hyperresponsiveness in farmers, with emphasize to their severity and work-relatedness due occupational risk factors and farming characteristics. METHODS: A cross-sectional survey was performed including 60 cow breeders aged 21 to 65 years, compared to an equal number of agricultural farmers matched by age, job exposure duration, and smoking status. We have used a questionnaire to record the chronic respiratory symptoms, detailed work history, specific farming activities and tasks performed, and smoking history. Evaluation of examined subjects also included lung function spirometry tests, and bronchial hyperresponsiveness testing. RESULTS: We found higher prevalence of work related respiratory symptoms in the last 12 months in cow breeders with significant difference for phlegm (P = 0.039), and wheezing (P = 0.026). Mean values of all spirometric parameters were lower in cow breeders, reaching significance for MEF50 (P = 0.001) and MEF75 (P = 0.000). Significant difference was found for mild bronchial hyperresponsiveness among cow breeders with job exposure of more than 15 years. The risk of developing work-related respiratory symptoms increased significantly with full-time farming, exposure to gases and vapors, and keeping more than 10 cows. CONCLUSION: Our data suggest that workplace exposure in farmers may cause respiratory impairment which is closely related to its duration, characteristics, and intensity. The results suggest that cow breeders in general have higher rates of work-related respiratory symptoms and bronchial hyperresponsiveness than agricultural farmers, whereas their severity increases with an increase in frequency and duration of animal contact
Comparison of nitric oxide measurements in the mesosphere and lower thermosphere from ACE-FTS, MIPAS, SCIAMACHY, and SMR

Abstract. We compare the nitric oxide measurements in the mesosphere and lower thermosphere (60 to 150 km) from four instruments: the Atmospheric Chemistry Experiment–Fourier Transform Spectrometer (ACE-FTS), the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY), and the Sub-Millimetre Radiometer (SMR). We use the daily zonal mean data in that altitude range for the years 2004–2010 (ACE-FTS), 2005–2012 (MIPAS), 2008–2012 (SCIAMACHY), and 2003–2012 (SMR). We first compare the data qualitatively with respect to the morphology, focussing on the major features, and then compare the time series directly and quantitatively. In three geographical regions, we compare the vertical density profiles on coincident measurement days. Since none of the instruments delivers continuous daily measurements in this altitude region, we carried out a multi-linear regression analysis. This regression analysis considers annual and semi-annual variability in the form of harmonic terms and inter-annual variability by responding linearly to the solar Lyman-α radiation index and the geomagnetic Kp index. This analysis helps to find similarities and differences in the individual data sets with respect to the inter-annual variations caused by geomagnetic and solar variability. We find that the data sets are consistent and that they only disagree on minor aspects. SMR and ACE-FTS deliver the longest time series in the mesosphere, and they agree with each other remarkably well. The shorter time series from MIPAS and SCIAMACHY also agree with them where they overlap. The data agree within 30 % when the number densities are large, but they can differ by 50 to 100 % in some cases.
THE RELATIONSHIP AMONG TRAIT EMOTIONAL INTELLIGENCE , BIG FIVE PERSONALITY TRAITS AND THE ACADEMIC SUCCESS OF EFL LEARNERS

This study aims to determine the associations among Trait Emotional Intelligence (TEI), Big Five Personality Traits (BFPT) and the academic success of the students in four language skills namely reading, writing, listening and speaking in English and overall academic success in EFL university students from different majors and having one-year intensive English education. The participants of the study are randomly selected 211 university students attending the School of Foreign Languages in 2013-2014 academic year. In this study, a descriptive and quantitative method was applied. One of the instruments of the study is Schutte Emotional Intelligence Scale (1998) revised by Austin, Saklofske, Huang, and McKenney (2004). Tok, Moralı, and Tatar (2005) adapted the scale for Turkish population. The other instrument is the Short Form Five Factor Personality Inventory developed by Tatar (2005). For the data analysis, the Pearson correlation coefficient and ANOVA analyses were applied. The findings of the study show that there is a significant negative relationship between BFPT and TEI of the language learners. Also, BFPT and TEI have certain levels of correlation with academic success in language skills and with their grade point averages (GPA). However, the variable of major is insignificant in the success of language learners. In the light of the findings of this study, it can be indicated that TEI and BFPT, as individual differences, are worth taking into account in language classrooms so as to improve the academic success, and thus the quality of the language learning and teaching.
Alternative hypotheses of cross-country convergence. A non-parametric analysis of manufacturing sectors

I adopt the distribution dynamics framework to study labor productivity convergence, in the period 1980-1995, among 28 developed and developing countries, in different manufacturing sub-sectors, identifled, as according their technological content into Resource Based, Low Technology, Medium Technology and High Technology. I flnd that, exception made for High Technology and Manufacturing as a whole, all subcompartments are predicted to converge within small groups, validating the so-called club-convergence hypothesis. Thus, as high tech sectors are the ones opening the best growth-equity prospects, developing countries should target these kind of productions.
STUDENTS’ MOTIVATION TOWARDS SCIENCE LEARNING (SMTSL) OF STEM STUDENTS OF UNIVERSITY OF BATANGAS, LIPA CITY

The main purpose of the study is to identify the levels of motivation of STEM (Science, Technology, Engineering, and Mathematics) students in University of Batangas, Lipa City (UBLC). It is necessary as motivation serves as a foundation for better understanding of concepts in an academic setting. The respondents are 111 grade 11 students who are enrolled during the Academic Year 2016-2017. The researchers assess the levels of motivation of students across four (4) sections of STEM strand. The research utilized a questionnaire SMTSL (Students Motivation Towards Science Learning), a survey questionnaire developed by Tuan, Chin, & Shieh (2005) which is composed of questions which is divided into six (6) domains of motivation namely, self-efficacy, active learning strategies, science learning value, performance goal, achievement goal and learning environment stimulation. Results showed that achievement goal ranked first (1st) among the six (6) domains. This suggests that students have satisfaction in every time they increase their competence in attaining achievements during science class. On the other hand, the data recognizes the performance goal as the least factor. However, the data shows that students do not agree nor disagree whether their goals towards science learning are to compete with other or simply get attention from the teacher. Based on these findings, it is recommended that UBLC considers factors of motivation in implementing science curriculum. This research will not only help students in understanding their motivation but will also help the institution to promote a better environment for learning. Additionally, the study will serve as a foundation for future researches related in assessment of motivation of students towards learning.
A Tale of Beauties and Beasts: Testing the Optimal Disclosure Hypothesis

According to the cost-of-capital hypothesis, increased voluntary disclosure should reduce information asymmetries, lower the cost of capital, and increase firm value. The optimal-disclosure hypothesis, however, predicts that costs related to voluntary disclosure lead to the existence of an interior optimum of disclosure that maximizes firm value. These hypotheses are empirically tested using a previously unexplored database that covers disclosure rankings for listed Swedish firms between 2007 and 2012 (rendering around 1000 firm-years). The evidence is consistent with the optimal-disclosure hypothesis. I find a robust quadratic relationship between Tobin’s Q and the level of disclosure in annual reports. I find no significant relationship, however, between Tobin’s Q and disclosure in quarterly reports or web-based reporting.
Heterogeneous Quality Firms and Trade Costs

There is increasing empirical evidence that vertical product differentiation is an important determinant of international trade. However, the economic literature so far has solely focused on the case in which quality trade stems from differences between countries. No studies investigate the role of quality trade between similar economies. This paper first develops a simple theoretical trade model that includes vertical product differentiation in a heterogeneous-firm framework. The model yields three main predictions for trade between similar economies. First, exported goods are of higher quality than goods sold on the domestic market. Second, larger economies have on average higher export qualities compared with smaller economies. Third, with increasing trade costs higher quality goods are exchanged. For all three effects, strong empirical support is found using detailed export trade data of the United States and 15 European Union countries.
Zero-Point Energy and the Emergence of Gravity: Two Hypotheses

Building on the results of experiments and speculations arising from his earlier collaborations as well as proposals from the theoretical work of others, the author suggests that gravity emerges as a result of the interaction of zero-point energy with matter. The results of experiments suggest that light, through its interaction with zero-point energy causes changes in the weight of test masses. These experimental results are interpreted as being due to changes in the spectral [Note 1] content surrounding massive bodies. Two hypotheses therefore emerge. Further experiments are planned to test the findings from earlier experiments.