Miracle-dz/UniFAR-FTUs huggingface dataset:
Evaluation of the Managerial Effectiveness of School Administrators by the Views of Teachers

The aim of this research is to reflect the description of teachers working in the secondary schools of TRNC on the managerial effectiveness skills of school administrators from the same schools and to identify whether their managerial effectiveness skills vary significantly on the basis of some variables. The research was conducted on a study group (sample) comprised of 369 teachers from 10 secondary schools. The study is a descriptive research conducted through screening with quantitative method. The Scale for Evaluation of the Effectiveness of School Administrators developed by Kocak and Helvaci (2011) was used as the data collection tool for this study with 3/5 dimensions. The research data were analysed through SPSS 23.0 software; and descriptive statistical processes were utilised as one-way analysis of variance (ANOVA) was performed to identify whether the effectiveness of school administrators under three parameters vary with regard to the service period based on the views of teachers; and t-test whether vary with regard to their genders. Pursuant to the research findings, the effectiveness levels under the culture of school and climate was found as 3.86 as the highest and 3.80 as the lowest for their effectiveness levels during the educational leadership. Consequently, the managerial effectiveness skills of school administrators were found at sufficient levels.
AN INTRODUCTORY DISCUSSION OF THE STRUCTURE OF SINGLE-WALLED CARBON NANOTUBES AND THE RELATION BETWEEN CARBON NANOTUBE STRUCTURE AND THEIR ELECTRONIC PROPERTIES

This paper introduces the carbon nanotube (CNT). After a brief overview of its history, the structure of a CNT is examined at length. The sensitivity of the CNT’s electrical properties to its structural geometry is discussed, touching on the band gap properties of graphene and how these differ from those of CNTs. The discussion is rounded off with brief consideration of a developing application of CNTs, the field-effect transistor (CNTFET).
A risk - based approach for the economic impact of climate change assessment

This paper contributes to shed light on the economic impacts of changes in water availability due to climate change on small-scale agriculture. We provide an hydro-economic modelling framework that captures the socio-economic effects of water shocks on smallholder at river basin scale. This approach link a farm risk-based economic optimization model and a hydrologic simulation model specified for the basin. Large differences in the economic impacts across the studied farm types are found. In this context, the smallest farmers will be most negatively affected by the change in water availability. These results suggest large distributional consequences of climate change for the economy of the small-scale farmers in the basin, challenging the public policy to generate reliable tools to cope with climate change small-scale farmers’ vulnerability
Gut perturbation and probiotics in neonatology

Recent studies suggest that foetal colonisation begins prior to birth. There are other major determinants for neonatal gut colonisation other than that of a possible prenatal transfer of maternal bacteria to the foetus, including the delivery and feeding mode, as well as perinatal antibiotic exposure. Generally, vaginally born infants are first colonised by bacteria from the maternal vagina, whereas the gut microbiota of infants born by caesarean section (CS) more often resembles that of maternal skin and oral microbiota. Indeed, CS delivered babies seem to have a higher incidence of obesity, type 1 diabetes and asthma. The mode of feeding also plays an important role in influencing early intestinal microbiota. A more eubiotic microbiota composition is conferred to breastfed infants than to their formula-fed counterparts. Nowadays, we have evidence of antibiotic induced intestinal dysbiosis, which is, in turn, associated to an increased risk of developing overweight/obesity, as well as asthma, wheezing and/or inflammatory bowel disease, later in life. Overall, the early gut dysbiosis may have long-term negative effects on an infant’s healthy immunological, hormonal and metabolic development. There has been extensive evaluation of how probiotic supplementation early in life may re-establish gut eubiosis and reduce the negative long-term effects of early dysbiosis. The most commonly used and studied probiotic strains and species include Lactobacilli , Bifidobacteria and S. boulardii . Accumulated evidence in neonatology suggests that some probiotic strains may be effective in preventing antibiotic associated diarrhea, necrotizing enterocolitis in premature infants and/or eczema. L. reuteri may also be effective in treating infantile colic.
The Simulation of Terahertz Wave Radar System

From the system simulation perspective, the thesis is about testing the coming multi frequency multiplexing Terahertz radar system and take the 340GHz as the example to design and analyze the system. With the adoption of 21.6 GHz Bandwidth and the foundation of the Matlab/Simulink, the Frequency multiplication module, Mixing module and Quadrature demodulation module, etc., are designed so as to build the Terahertz radar system. Then, the three target points are taken as the example for simulation, and the spectrum charts of radar signal at every phase are obtained. The range image, range image position and resolution of the three target points are consistent with the theoretical value. The detection error and existing problem are analyzed in the end.
Perceived Family Functioning in Relation to Energy Intake in Adolescent Girls with Loss of Control Eating

Family functioning is hypothesized to influence the development, maintenance, and treatment of obesity and eating disorders. However, there are limited data examining family functioning in relation to energy intake in the laboratory among youth at high-risk for eating disorders and excess weight gain. Therefore, we examined the relationship between perceived family functioning and energy intake during a laboratory test meal designed to model a binge episode. We performed hierarchical multiple regression analyses among 108 adolescent girls in an excess weight gain prevention trial. Participants were at high-risk for eating disorders and excess weight gain due to reports of loss of control eating (LOC) and high body mass index (BMI). Participants completed the Family Adaptability and Cohesion Scale III to assess family adaptability and cohesion. Following an overnight fast, girls consumed lunch from a laboratory test meal. Poorer family adaptability, but not cohesion, was associated with lower percentage of total energy intake from protein and greater percentage of total energy intake from carbohydrates. Neither adaptability nor cohesion were significantly associated with total intake. We conclude that among girls with LOC eating and high BMI, poor reported family adaptability is associated with greater consumption of obesity-promoting macronutrients during binge episodes. Directionality and temporality of this association between unhealthy consumption and family rigidity requires further study.
STATUS EPILEPTICUS

Status epilepticus (SE) is a medical emergency. It requires prompt diagnosis and treatment since delay is associated with worse outcome and a higher likelihood of poor response to treatment. Lorazepam is well established as first-line therapy. Rectal diazepam or nasal or buccal midazolam should be given if IV access is not immediately available. This is usually followed by phenytoin or fosphenytoin. SE may be either convulsive or nonconvulsive; the nonconvulsive form remains underdiagnosed. Urgent EEG is indicated in any patient with fluctuating or unexplained alteration of behavior or mental status, and after convulsive seizures or SE if the patient does not rapidly awaken. For refractory SE, continuous IV midazolam and propofol, separately or in combination, are rapidly effective.
Evaluation of the anthelmintic activity of pumpkin seeds (Cucurbita maxima) in mice naturally infected with Aspiculuris tetraptera

The aim of this study was to investigate the anthelmintic effect of pumpkin seeds (Cucurbita maxima) against Aspiculuris tetraptera in naturally infected mice. For this purpose, the natural infection was determined by the cellophane tape (on the anal region), and the centrifugal flotation methods of stool samples in approximately 150 male Swiss albino mice (27 to 35 g). The infected mice (29 animals) were divided into four groups. The animals in the first (G1) and second groups (G2) received water and ethanol extracts of pumpkin seeds orally at the dose suggested for human for 7 days, respectively. The mice in the positive control group (G3) were treated with ivermectin intramuscularly at a dose of 0.2 mg/kg body weight. The mice in fourth groups (G4) received the same amount of serum physiologic orally. The mice were housed in clean polypropylene cages and maintained under standard laboratory conditions at an ambient temperature of 20±2°C with 45% relative humidity and a 12 h light dark cycle. At the eighth day of the study, all animals were killed humanly following inhalation anaesthesia. After euthanasia, the number of parasites in the intestine was counted. Data obtained from the treatment groups were compared using one-way ANOVA. The percentage efficacy of the drugs was calculated. The results of the study showed that the efficacies for water (G1) or ethanol (G2) extracts of pumpkin seed and ivermectin were 81, 85 and 91% compared with the negative control, respectively. These results revealed that pumpkin seed has high anthelmintic activity against nematodes as well as its continued use in traditional medicine for the treatment of helminthiasis. Key words: Aspiculuris tetraptera, mice, anthelmintic effect, efficacy, Cucurbita maxima.
Transition numérique et dynamiques intra- et inter-organisations

Les études menées sur la transition numérique s’intéressent principalement aux grandes entreprises, écartant les problématiques qui se posent dans les PME. Leurs spécificités structurelles doivent en effet être prises en considération pour étudier comment elles peuvent adapter la transition numérique à leur activité. Pour cela, nous avons opté pour une approche qualitative exploratoire afin de rencontrer des dirigeants de PME et comprendre comment s’articulent les nouveaux outils numériques aux frontières intraet inter-organisationnelles dans les PME françaises ? Nous étudions plus spécifiquement deux formes d’intégration : l’intégration technologique (Simondon, 1969) (les outils numériques déployés) en interne et dans leurs interactions avec leurs clients et fournisseurs, ainsi que l’intégration gestionnaire (De Vaujany, 2006) qui doit faciliter l’action collective pour le fonctionnement organisationnel. Nos résultats montrent que si les PME s’engagent progressivement dans la transition numérique, elles y parviennent principalement à travers l’intégration de nouvelles technologies sans qu’une réflexion sur les aspects gestionnaires ne soient systématiquement appliquée.
Parkinson’s Disease and the “sunshine” vitamin

Accrued evidence suggesting that hypovitaminosis D acts as a risk factor for developing Parkinson’s disease (PD) remains controversial. Herein we evaluated existing results, and outline several biological mechanisms by which the hypovitaminosis D-PD relationship may occur. We performed a meta-analysis, using data obtained from a search of PubMed from July 2002 to July 2012, for studies reporting serum vitamin D levels in PD and control patients.We found that in comparison to healthy individuals, those with PD had lower levels of serum vitamin D. Furthermore, we explore a number of potential associated biological mechanisms, including the actions of reactive nitrogen species (RNS), glutathione (GSH), and glial-derived neurotrophic factor (GDNF) in the brain. We also examine the roles of Nurr1 and VDR genes in PD. Although a unifying hypothesis remains challenging, there is evidence to demonstrate that supplementation with the vitamin can to have a positive effect on PD pathobiology. We surmise that hypovitaminosis D does act as a risk factor in the development of PD. However, the need for new epidemiological studies and further research around vitamin D metabolism is highlighted. Urgent efforts to correct vitamin D deficiency through supplementation are warranted as they may improve either motor and/or non-motor symptoms in PD.
Motion of the Ginzburg-Landau vortices for the mixed flow with convective forcing

We consider the mixed Ginzburg-Landau flow that is supplemented with convective derivatives of the unknown function. We show that the associated vortex motion law is the mixed flow of the renormalized energy with new nonlinear forcing terms. These terms are uniquely determined by the extra terms in the initial PDE. Our proof relies on the assumption that the initial data are close to optimal.
Teacher Motivation and Perception of Effectiveness of Curriculum

Teacher motivation is a point of concern for educationists, education planners and school managers. There are several theories dealing with teacher motivation from different viewpoints. The present paper is a short survey concerning the kind of opinion that motivated teachers have regarding the effectiveness of curriculum. The survey was conducted in a private CBSE-based school of Patna. The survey showed a medium positive correlation of 0.35 between teacher motivation and teachers' perception of effectiveness of curriculum. This implies that while it is true that motivated teachers in general have a positive opinion about their curriculum being effective, it is not so always. A small number are not very confident. This might be because they might be looking towards further possible improvements.
Simplified Space Vector PWM Algorithm for a Three Level Inverter

Abstract — The Space vector based PWM strategies have broader choice of switching sequences to generate the required reference vector than triangle comparison based PWM techniques for three-level inverters. However, Space Vector based PWM technique involves various steps which are computationally exhaustive. In order to reduce this complexity, a simplified algorithm is proposed here. This work aims at reducing of harmonic distortion in high-power drives, which have low switching frequencies. In this paper, Conventional Space Vector based PWM (CSVPWM) algorithm and Modified Space Vector based PWM (MSVPWM) algorithm are presented. Index Terms — multilevel inverter, computational efforts, Conventional Space Vector based PWM, Modified Space Vector based PWM
A novel authoring tool for augmented books

Augmented Reality (AR) has been studied from different application fields since the early 60s. Different research works in the educational field have been recently conducted, particularly based on a versatile AR application called Augmented Book. This paper focuses on a novel authoring tool for this kind of books. Our approach allows the possibility of adding virtual contents to any existing printed book. The application was implemented following a framework-based approach, making easy to extend with new features. Informal evaluations and observations by academics of different fields were conducted obtaining promising results.
Identification of riverine, estuarine, and coastal contingents of Hudson River striped bass based upon otolith elemental fingerprints

Elemental fingerprints of otoliths from Hudson River striped bass Morone saxatilis were used to define resident, estuarine, and ocean migratory contingents, which had previously been de- termined by otolith microprobe analysis of Sr:Ca. Using solution-based inductively coupled plasma mass-spectrometry, 7 metals were quantified in whole otoliths. Discriminant analysis of elements showed a high degree of separation among the 3 migratory contingents. Barium was significantly higher in otoliths from the freshwater resident group, while Sr and Na were significantly lower in comparison to mesohaline and ocean contingents. Identification of contingents by the bulk chemistry method indicated that divergent migratory patterns persist over lifetimes for Hudson River striped bass.
The Earnings/Price Risk Factor in Capital Asset Pricing Models

This article integrates the ideas from two major lines of research on cost of equity and asset pricing: multi-factor models and ex ante accounting models. The earnings/price ratio is used as a proxy for the ex ante cost of equity, in order to explain realized returns of Brazilian companies within the period from 1995 to 2013. The initial finding was that stocks with high (low) earnings/price ratios have higher (lower) risk-adjusted realized returns, already controlled by the capital asset pricing model's beta. The results show that selecting stocks based on high earnings/price ratios has led to significantly higher risk-adjusted returns in the Brazilian market, with average abnormal returns close to 1.3% per month. We design asset pricing models including an earnings/price risk factor, i.e. high earnings minus low earnings, based on the Fama and French three-factor model. We conclude that such a risk factor is significant to explain returns on portfolios, even when controlled by size and market/book ratios. Models including the high earnings minus low earnings risk factor were better to explain stock returns in Brazil when compared to the capital asset pricing model and to the Fama and French three-factor model, having the lowest number of significant intercepts. These findings may be due to the impact of historically high inflation rates, which reduce the information content of book values, thus making the models based on earnings/price ratios better than those based on market/book ratios. Such results are different from those obtained in more developed markets and the superiority of the earnings/price ratio for asset pricing may also exist in other emerging markets.
Good or bad rangeland? Hybrid knowledge, science, and local understandings of vegetation dynamics in the Kalahari

Using data from field studies in the Kalahari rangelands of Southern Africa, the relationships between ‘scientific’ and ‘land user’ interpretations of land degradation and change in nonequilibrium savanna ecosystems are explored. Scientific and land‐user views are often regarded as distinct, and even opposed, knowledges. We contest that a more constructive view can be taken through the concept of hybrid knowledge, whereby value is attached to both approaches and through which a more useful and meaningful assessment of environmental change, and its implications for development and natural resource use, can be made. We find that in both the southwestern and northwestern Kalahari, pastoralists have a complex understanding of the patchiness of ecosystem variability, and that they utilise elements of this patchiness of change, notably dimensions of bush encroachment and grass species change that have commonly been regarded as degradation in scientific understandings, within livestock management strategies, especially at times of environmental stress. We urge caution in the application of the term degradation, and a more widespread recognition of the multifaceted dimensions, including benefits, of change within the scientifically recognized variability of nonequilibrium rangelands. Copyright © 2004 John Wiley & Sons, Ltd.
Optimal trading under non-negativity constraints using approximate dynamic programming

Abstract In this paper, we develop an extended dynamic programming (DP) approach to solve the problem of minimising execution cost in block trading of securities. To make the problem more practical, we add non-negativity constraints to the model and propose a novel approach to solve the resulting DP problem to near-optimal results. We also include time lags in the problem state to account for the autoregressive behaviour of most financial securities as a way of increasing problem sensitivity to variability of prices and information. The computation times achieved for the proposed algorithm are fast and allow for the possibility of live implementation. We demonstrate the benefits offered by the new approach through numerical analysis and simulation runs in comparison to the classic model without the non-negativity constraints.
Investment strategies and hidden variables

Abstract. The present study shows how the information on `hidden' market variables effects optimal investment strategies. We take the point of view of two investors, one who has access to the hidden variables and one who only knows the quotes of a given asset. Following Kelly's theory on investment strategies, the Shannon information and the doubling investment rate are quantified for both investors. Thanks to his privileged knowledge, the first investor can follow a better investment strategy. Nevertheless, the second investor can extract some of the hidden information looking at the past history of the asset variable. Unfortunately, due to the complexity of his strategy, this investor will have computational difficulties when he tries to apply it. He will than follow a simplified strategy, based only on the average sign of the last l quotes of the asset. This results have been tested with some Monte Carlo simulations.
AN EVALUATION OF COLOR SIFT DESCRIPTORS FOR UNDERWATER IMAGES

This paper presents the evaluation of color SIFT in underwater image feature matching. Due to the absorption and scattering of light, underwater image suffer from low contrast and blur. The selection of color spaces is needed to overcome these problems. This paper conducts the evaluation of several color spaces on Scale Invariant Feature Transform (SIFT) descriptor. Using our underwater stereo images dataset collected from Karimunjawa Island Indonesia, we demonstrate that HSV-SIFT performs the best to extract matching point, while RGB-SIFT has better performance to extract many number of keypoints.
FORWARD IMPLIED VOLATILITY EXPANSION IN TIME-DEPENDENT LOCAL VOLATILITY MODELS ∗, ∗∗, ∗∗∗

We introduce an analytical approximation to efficiently price f orward start options on eq- uity in time-dependent local volatility models as the forward start date, the maturity or the volatility coefficient are small. We use a conditional expectation argument to represent the price as an expecta- tion of a Black-Scholes formula computed with a stochastic implied volatility depending on the value of the equity at the forward date. Then we perform a volatility expansion to derive an analytical approximation of the forward implied volatility with a precise error estimate. We also illustrate the accuracy of the formula with some numerical experiments. Some results and tools of this work were presented at the conference SMAI 2013 in the mini-symposium "Methodes asymptotiques en finance". Resume. Nous introduisons une approximation analytique afin d'´evaluer efficacement les options ` depart differe dites forward start dans les modelesvolatilite locale qui depend du temps quand la date forward, la maturite ou le coefficient de volatilite sont petits. Nous utilisons un argument d'esperance conditionnelle pour representer le prix comme l'esperance d'une formule de Black-Scholes calculee avec une volatilite implicite stochastique qui depend de la valeur de l'actionla date forward. Ensuite, nous effectuons un developpement en volatilite pour obtenir une approximation analytique de la volatilite implicite forward avec une estimation precise de l'erreur. Nous illustronsla precision de notre formule avec quelques experiences numeriques. Certains resultats et outils de ce travail onte presentes au congres SMAI 2013 dans le mini-symposium "Methodes asymptotiques en finance".
Global existence for the defocusing mass-critical nonlinear fourth-order Schrödinger equation below the energy space

In this paper, we consider the defocusing mass-critical nonlinear fourth-order Schrodinger equation. Using the $I$-method combined with the interaction Morawetz estimate, we prove that the problem is globally well-posed in $H^\gamma(\mathbb{R}^d), 5\leq d \leq 7$ with $\gamma(d)<\gamma<2$, where $\gamma(5)=\frac{8}{5}, \gamma(6)=\frac{5}{3}$ and $\gamma(7)=\frac{13}{7}$.