Miracle-dz/UniFAR-FTUs huggingface dataset:
The efficiency of capital multiples: Case of Mexico

Capital multiples are financial ratios widely used by financial analysts for the purpose of making in vestment decisions in shares (S) of companies listed in stock markets. The two main indicators are the share price-to-earnings (P/E) and the market value to book value (P/B). Both multiples have the market perspective with respect to the book value of net income and the total equity as a common factor. A sample of 30 companies listed on the Mexican stock exchange between 2008 and 2016 (9 years) was taken, establishing three analysis periods of 3 years each depending on the volatility of the Mexican economy measured through the index of global economic activity (IGAE for its acronym in Spanish). The first was called crisis (1), the second recovery (2), and the third expansion (3). In order to find the possible association of P/E and P/B with S, the generalized method of moments (GMM) was used for the estimations, finding that P/B presents the highest relationship with S in the 3 economic periods, while P/E only presents a significant relationship in periods (2) and (3) concluding that this measuring device is very sensitive to economic changes, whereas P/B is robust and does not lose significance in the face of economic volatility.
Is lip repositioning operation actually effective in treatment of gummy smile

Amac: Modifiye dudagin yeniden konumlandirilmasi (MDYK) operasyonu kolay uygulanabilir olmasi, cok az yan etkisinin olmasi ve yuksek hasta memnuniyeti nedeniyle hiperaktif ust dudagin sebep oldugu Gummy Smile’in (GS) tedavisinde son zamanlarda cok sik kullanilmaktadir. Bu calismanin amaci GS tedavisinde kullanilan MDYK operasyonunun 6 aylik donemde etkisinin gecip gecmedigini degerlendirmektir. Materyal ve Metot: Bu calismada gulumseme esnasinda disetinin fazla gorunmesinden sikayetci olan 16 bayan hasta MDYK operasyonu ile tedavi edildi. Operasyon oncesi ve operasyondan 3-6 ay sonra gulumseme esnasinda gorunen diseti miktarlari olculdu. Bulgular: Yapilan olcum ve analize gore operasyondan once ve operasyondan sonraki 3-6. ayda 16 hastada gulme esnasinda ortalama gorunen diseti miktari sirasiyla 4.93±0.85 mm, 1.06±0,98 mm ve 2.87±0.8 mm olarak hesaplandi. Operasyon sonrasi disetindeki ortalama azalma miktari ise operasyondan sonraki 3. ve 6. ayda sirasiyla 3.75±0.93 ve 2.06±0.68 mm olarak tespit edildi. Sonuc: Bu calismanin sonucuna dayanarak; MDYK operasyonunun gulme esnasinda gorunen diseti miktari uzerine etkisinin zamanla azaldigini soyleyebiliriz. Ancak arastirmanin az sayida hasta uzerinde yapilmis olmasi, bu konu hakkinda kesin sonuclara varmamizi engellemektedir. Biz yazarlar olarak buna benzer calismalarin hasta sayisinin fazla oldugu gruplar uzerinde yapilmasini ve operasyonun daha etkili olmasi icin, dudak hareketlerinin kisitlanmasi amaciyla operasyondan 2 hafta once ust dudagi yukari kaldiran kaslara Botulinum Toksin uygulayarak yeni calismalar yapilmasini onermekteyiz.
A vector leptoquark for the B-physics anomalies from a composite GUT

A vector leptoquark at the TeV scale, mostly coupled to the fermions of the third generation, is the preferred option to explain the hints of lepton flavor universality violation in the decays of B-mesons. It seems interesting to assume that this leptoquark belongs to the same beyond the Standard Model sector that solves the hierarchy problem, since the third generation of fermions play the leading role in the instability of the Higgs potential. We present a composite Grand Unified Theory with resonances at the TeV that contains the required vector leptoquark and develops the Higgs as a pseudo NambuGoldstone boson. We show that anarchic partial compositeness of the Standard Model fermions can accommodate the couplings of Left-handed currents required by the B-anomalies, predicting very small couplings to the Right-handed currents without any additional hypothesis. By making use of an effective theory description of the strong dynamics, in terms of weakly coupled resonances, we are able to compute the corrections to B-physics, as well as the one-loop potential for the pseudo Nambu-Goldstone bosons. The theory has a rich phenomenology and a candidate for dark matter. E-mail: ◦ daroldl@cab.cnea. gov.ar, ⋆ federico.lamagna@cab.cnea. gov.ar
Age at immigration and high school dropouts

We focus on high school dropout rate among male and female immigrant children. We consider the relationship between the dropout rate and age of arrival of the immigrants. Using repeated cross sectional data from the Israeli Labor Force Surveys of 1996-2011 we show that the share of high school dropouts among immigrant children who arrived from the Former Soviet Union during 1989-1994 is at least as double than among natives in the same age group. Further, we show that among immigrant youth there is a monotonic negative relation between age at arrival and the share of high school dropouts. To understand our results we present a theoretical framework that links between age at arrival in the host country, language proficiency, quality of education and wages.
Problems and Solutions concerning English Language Preparatory Curriculum at Higher Education in View of ELT Instructors

This study aims to explore the problems and the solutions concerning the English language preparatory curricula implemented at Eskisehir Osmangazi University, School of Foreign Languages according to ELT instructors. Participants of the study are 50 ELT instructors teaching English language in three different proficiency levels (A1, A2, B1). Case study, a qualitative research method, was adopted in the study and self-report method (written reports) was used to gather the data. Deductive, or top-down approach, was used to analyze the qualitative data. The results of the study reveal that the problems and the solutions as to the curriculum are analyzed under four themes that are objectives, teaching materials, assessment and evaluation and general structure. Concerning the objectives, lack of clarity and control of the objectives are among the problems. The problems as to course book, additional materials and writing pack are analyzed under the second category that is teaching materials while the problems regarding midterms, quizzes, project works, writing portfolios, and class performance grade are analyzed under the third category that is assessment and evaluation. Last, three sub-categories as to general structure are as follows: physical problems, problems as to number and level of students in the classrooms and administrative problems. Solutions to the problems are suggested.
Antibacterial and antioxidant activities of Physalis peruviana and Hyphaene thebaica extracts

Ethanol extract of Physalis peruviana and water extract of Hyphaene thebaica were tested for their inhibitory effects on eight bacterial strains (Escherichia coli, Proteus mirabilis, Salmonella typhimurium, Salmonella entrica , Shigella dysenteriae , Bacillus cereus, Bacillus licheniformis and Staphylococcus aureus) by using well diffusion technique. The study demonstrated that Staph. aureus was the most sensitive gram-positive strain and E. coli was the most sensitive gram-negative strain to ethanol extract of Physalis peruvianae and water extract of Hyphaene thebaica. The inhibition zone diameters near to the synthetic antibiotic (ciprofloxacin). The antioxidant activity of the both extracts was also investigated by using 2, 2 - diphenyl, 1- picrylhydrazyl (DPPH) scavenging activity and ascorbic acid as control. The results showed that the scavenging effects of both extracts on DPPH radicals increased by increasing the concentration. The ethanolic extract of Physalis peruvianae and water extract of Hyphaene thebaica were a promising source of natural antimicrobial agent, antioxidant agent and as natural preservative of processed food.
Investigating the relationship between the use of vocabulary learning strategies and English language attainment

Despite numerous irrefutable accomplishments in the field of vocabulary learning and learning strategies, it can be observed that there are still areas of research that have received only scant focus in the Polish context, and one of them is the relationship between the use of vocabulary learning strategies and attainment in the mastery of this language subsystem. Because of that, this research project attempts to contribute to the scarcity of quantitative investigations in the realm of vocabulary learning strategies by presenting the findings of a study which sought to establish the general pattern of vocabulary learning strategy use among Polish university students whose major subject was English and the relationship between their overall, categorical, and individual frequency of vocabulary strategy use and performance in vocabulary tests. As for the results, the study found that the participants’ overall vocabulary learning strategy use, on the average, was of medium-high frequency. Furthermore, Pearson’s correlation coefficients showed a positive relationship between overall and categorical application of strategic devices and vocabulary attainment. At the microlevel, the findings showed that most of the individual vocabulary learning strategy items were positively correlated with vocabulary test scores. Above all, it is hoped that the current work will contribute not only to a better understanding of the significance of vocabulary learning and vocabulary learning strategies, but will also lead to further investigations in the field. Krzysztof Kwiatkowski
IMMUNO- MORPHOLOGICAL PATTERNS OF LYMPH NODES DRAINING ORAL SQUAMOUS CELL CARCINOMA

INTRODUCTION: Head and neck cancer (HNC) is the sixth most common cancer with 500,000 cases diagnosed per year worldwide. Oral squamous cell carcinoma (OSCC) is accounting for more than 90% of total cases. Among all factors influencing the prognosis of OSCC, development of lymphatic metastasis is considered the single most important one. Morphological evaluation of the reactive patterns of regional nodes has aided in understanding the immune response to malignancy. The World Health Organization (WHO) categorized this reactive pattern into lymphocytic predominance, germinal center predominance, sinus histiocytosis, unstimulated pattern and lymphocytic depletion. Assessment of lymph nodes immuno- reactivity is an important indicator of the host response status and prognosis of OSCC. OBJECTIVES: To Assess the immuno-morphological patterns of both positive and negative lymph nodes draining OSCC and correlate these patterns with the clinical finding and the histological grading of the primary tumor. Material and Methods: Histopathological examination had been done on 30 cases of OSCC with neck dissection and immuno-morphological patterns had been detected and correlated with the grading of primary tumor. Results: A statistical analysis of the distribution of the 5 patterns of lymph nodes in 3 grades of OSCC was done using chi square test. Significance difference was revealed only in two patterns (lymphocytic depletion and normal unstimulated patterns) . other 3 patterns was found to be non-significant. CONCLUSIONS: lymphocytic depletion and unstimulated mixed patterns of draining lymph nodes was significantly correlated with the grade of the tumor and it could be used as an indicator for prognosis and early metastasis of OSCC. However, no correlation was found between the other patterns and the histological grading.
Adopting E-learning Model Based On The TAM Expansion Through Subjective Norm to Discover Intentions of Students

The aim of this research is to investigate the problems faced by students in adopting and accepting the use of e-learning in higher education institutions at the University of Technology (UOT). Many researchers have used the factors influencing the acceptance of technology for the perceived usefulness and the perceived ease of use of students' intention to use technology. These factors are used to determine their impact on the acceptance and use of e-learning model provided by the University of Technology. This study seeks to expand the model by suggesting a set of examining variables that can affect both perceived utility and perceived ease of use. In addition to testing the developed model on the use of adopting e-learning in higher education based on a sample of behavior intention of students in UOT. A questionnaire conducted to the students of two collages: computer science and software engineering departments with 258-returned recording 52.2% return rate. The collected data analyzed using SPSS 24 and Excel 2017. To evaluate the measurement and structure the model, the Structural Equation Modeling (SEM) used. The finding showed that the value of the social norm(α=0.83, p<0.05) highly predicted perceived usefulness(α=0.73, p<0.05) also highly predicts perceived ease of use, but, behavior intention(BI) was highly effective by the value of the social norm(SN), perceived usefulness, perceived of easy to use. The behavior intention highly predicts by BI (α=0.17, p<0.05). It was found that the percentage of variance for students in the intention to use e-learning was 38%.
Change of Nurr1 expression in mouse hippocampal CA3 region following excitotoxic neuronal damage

Objective(s): Nuclear receptor-related protein 1 (Nurr1), one of immediate-early genes, is a member of orphan nuclear receptor family. The aim of this study was to investigate the time-dependent change of Nurr1 protein expression in the mouse hippocampal CA3 region following kainic acid (KA)-induced excitotoxic neuronal damage. Materials and Methods: Male ICR mice were used as experimental animals, and 30 mg/kg KA was administered intraperitoneally. To confirm the KA-induced neuronal damage in the hippocampal CA3 region, Fluoro-Jade B histofluorescence staining was performed. In addition, the time-dependent change of Nurr1 protein expression was also examined using immunohistochemistry and western blot analysis. Results: Marked neuronal damage was observed in the hippocampal CA3 region at 24 hr after KA injection. In addition, both Nurr1 immunoreactivity and protein level were significantly increased at 6 hr and 12 hr after KA injection, and then decreased at 24 hr after KA injection. Conclusion: This result indicates that KA-induced alteration of Nurr1 protein expression may be associated with the neuronal degeneration in the hippocampal CA3 region after KA injection.
The Relationship Between Corporate Tax Rate and Economic Growth During the Global Financial Crisis: Evidence from a Panel VAR

This paper compares dynamic relationship between economic growth and corporate tax rate during the recent financial crisis and the non–crisis period using a panel VAR for 29 OECD countries over the period 1998-2016. The results show that corporate tax rate has a significantly negative effect on economic growth. Moreover, the recent financial crisis has had a significant effect on the endogenous interaction between corporate tax rate and economic growth. According to Granger causality test, there is only one-way causality from corporate tax rate to economic growth during the non-crisis period. Interestingly, there are not any causal relationships between corporate tax rate and economic growth during the crisis period. The results show that the recent crisis has had a significant effect on the endogenous interaction between corporate tax rate and economic growth.
Indoor thermal environment and air quality in Chinese-style 1 residential kitchens 2 3

16 This paper reviews the published literature on indoor thermal environment and air quality 17 in Chinese-style residential kitchens (CRKs). The paper first discusses typical characteristics 18 of CRKs, including kitchen layout, cooking methods and ventilation systems used. Next, the 19 paper describes the current state of the indoor thermal environment and air quality in CRKs. 20 Finally, this paper summarizes measures to control and improve the environment inside 21 CRKs. The results indicate that the indoor environment of CRKs is too hot in summer and 22 exhibits a large vertical temperature difference. No appropriate model was available for 23 accurately evaluating the thermal environment in CRKs. At the same time, CRKs are highly 24 polluted by COx, NOx, TVOC and particulate matter (PM). Although existing exhaust hoods 25 could improve the indoor environment to some extent, the use of a combined exhaust, make26 up air and air-conditioning system should be considered to provide a comfortable and healthy 27 environment in CRKs. 28 29
PARTICLE-SCALE SIMULATION OF THE SEDIMENTATION AND FILTRATION OF DRILLING FLUIDS USING THE DISCRETE ELEMENT METHOD

This paper presents the development of a computational code based on Discrete Element Method (DEM) to simulate the process of solid particles sedimentation and fluid filtration in drilling operations. For both phenomena, the adequate knowledge of the properties and characteristics of the underlying particulate systems represents an aspect of fundamental importance for the safe and efficient design of new drilling fluids and equipment. In this context, this paper presents a particle-scale simulation study, based on DEM, to describe the mechanics of cake formation and growth during the deposition of particulates. Three dimensional (3D) simulations of both processes were carried out to evaluate the proposed algorithm. The cake and the sediment properties, such as thickness, porosity and permeability were quantified and compared, qualitatively and quantitatively, to literature data. The cake properties obtained in this work showed good agreement with data found in similar conditions.
COMPARING STATURE-ESTIMATION METHODS ON MEDIEVAL INHABITANTS OF WESTERHUS, SWEDEN

In this article we compare stature estimation methods on osteological material from medieval Westerhus, Sweden. We use a recently revised anatomical technique (Raxter et al. 2006) to estimate the living stature (XSTAT) of the individuals. Other anatomical methods and various regression equations on long bone lengths are compared to XSTAT to examine their applicability to this skeletal sample and the accuracy of their estimates. We find considerable differences in estimates between techniques, especially in mean statures of tall and short stature classes based on long bone lengths. Thus we emphasize the importance of choosing the most appropriate estimation methods.
Efficacy of Cognitive Behavoural Therapy and Logotherapy in Reducing Risky Sexual Behaviour among in-School Adolescents in Benin Metropolis Edo State, Nigeria

The study investigated the efficacy of Cognitive Behaviour Therapy and Logotherapy in reducing risky sexual behaviours among in-school adolescents in Benin Metropolis, Edo State. Four research questions were raised and formulated to hypotheses to guide the study. A Quasiexperimental design, using pre-test-post-test, and non-equivalent control group was adopted. The population of the study consisted of twenty thousand, four hundred and twenty SS 2 students. The sample consisted of one hundred and thirty five participants, which was selected through multistage sampling technique. Three schools were randomly selected from thirty one mixed public Senior Secondary Schools. One school was selected from each Local Government Area that made up the Metropolis. School A served as the experimental group for Cognitive Behaviour Therapy, comprising fifty five participants. School B served as the experimental group for Logotherapy, Original Research Article Toyin and Elizabeth; JAMMR, 31(6): 1-11, 2019; Article no.JAMMR. 52002 2 comprising thirty six participants. School C served as the control group, comprising forty four participants. The Adolescent Sexual Behaviour Inventory was used for both the pre-test and posttest. The reliability coefficient of 0.926 was obtained on the instruments. The data collected were analysed, using t-test, ANOVA and did a post-hoc analysis, using the Least Significant Difference. The findings showed that Cognitive Behaviour Therapy and Logotherapy were both slightly efficacious in reducing risky sexual behaviours among in-school adolescents in Benin Metropolis. The study recommended that counselling psychologists and school counsellors should be well trained in the use of CBT and LT in addressing risky behaviours, especially among adolescents.
Milestone experiment : stratified and rotating turbulence in the Coriolis platform

Strongly stratified turbulence is a possible interpretation of oceanic and atmospheric measurements. However, this regime has never been produced in a laboratory experiment because of the two conditions of very small horizontal Froude number Fh and large buoyancy Reynolds number R which require a verily large experimental facility. We present a new attempt to study strongly stratified turbulence experimentally in the Coriolis platform. The flow is forced by a slow periodic movement of an array of six vertical cylinders of 25 cm diameter with a mesh of 75 cm. Five cameras are used for 3D-2C scanned horizontal particles image velocimetry (PIV) and stereo 2D vertical PIV. Five density-temperature probes are used to measure vertical and horizontal profiles and signals at fixed positions. We will show that we managed to produce strongly stratified turbulence at very small Fh and large R in a laboratory experiment. We will present how we used open-source and open-science methods and tools for this study.
Elevated Levels of iC3b and C4d, but Not Bb, Complement Fragments from Plasma of Persons Infected with Human T Cell Leukemia Virus (HTLV) with HTLV-I-Associated Myelopathy/Tropical Spastic Paraparesis

Plasma levels of complement (C) fragments iC3b, C4d, and Bb from human T cell leukemia virus (HTLV)-positive subjects with HTLV-I-associated myelopathy (HAM)/tropical spastic paraparesis (TSP) were analyzed by EIA. Both iC3b and C4d levels were significantly elevated in persons with HAM/TSP. These levels were similar to those in patients with human immunodeficiency virus (HIV) infection or rheumatoid arthritis (RA), who are known to have increased C fragments. Bb levels in persons with HAM/TSP were unaffected, suggesting that C activation occurred only via the classical pathway. This differed from findings in HIV-infected or RA patients, who had elevated levels of Bb. The results showed an increase in C activation in persons with HAM/TSP and activation via the classical pathway, likely mediated by virus or immune complexes. It is possible that the C activation observed in these subjects contributed to the inflammatory pathogenesis of HAM/TSP.
The Government as Shareholder and Principal-Principal Conflicts in the Brazilian Electric Power Industry

Considering that principal-principal conflicts in companies under mixed public-private ownership are substantially different from the typical agency conflict model, this paper’s objective is to analyze principal-principal conflicts in mixed ownership companies in the Brazilian electric power industry. In order to expand understanding of the phenomenon which we are studying, we have integrated the assumptions that underlie agency theory and institutional theory, using a qualitative approach and collecting data during semi structured interviews with companies’ board members. Data was analyzed and interpreted as per Bardin (2006), with the aid of ATLAS®ti software. Our main findings suggest that while a government stake in a firm’s ownership structure can provide a useful channel for the government to seek support and resources, in counterpoint, it can also create distortions and uncertainties, and exacerbate principal-principal conflicts. The development of stronger institutions and corporate governance could bring about useful options for providing checks and balances and, in the final analysis, mitigate principal-principal conflict. The article contributes to the literature by providing additional elements that are not available in public reports. Analysis of the conflict between principal and principal, together with theoretical integration, seek to broaden the understanding of this theme.