Miracle-dz/UniFAR-FTUs huggingface dataset:
Reproductive biology of Angraecum eburneum subsp. superbum (Orchidaceae) under glasshouse conditions

The results of long-term observations on the reproductive biology of an epiphytic monopodial orchid, Angraecum eburneum subsp. superbum, under glasshouse conditions are provided. Experimental pollination treatments (induced autogamy/induced xenogamy) indicated that A. eburneum subsp. superbum is a self-compatible but not an autogamous orchid. The fruit set after self- and crosspollination significantly differed. Cross-pollination had positive effect on seed viability of A. eburneum subsp. superbum under glasshouse conditions. The fruit set, seed mass and seed viability were compared with respect to flower position within an inflorescence. The position of pollinated flowers within the inflorescence was found to affect the fruit and seed mass, but not seed viability. The impact of various factors, including breeding systems, pollination strategies, flowering longevity, pollinated flower position in inflorescence and resource status, upon reproductive success of the orchid studied ex situ was analyzed.
Variation morphogeometrics of Africanized honey bees (Apis mellifera) in Brazil

The morphometrics of the honey bee Apis mellifera L. , 1758 has been widely studied mainly because this species has great ecological importance, high adaptation capacity, wide distribution and capacity to effectively adapt to different regions. The current study aimed to investigate the morphometric variations of wings and pollen baskets of honey bees Apis mellifera scutellata Lepeletier, 1836 from the five regions in Brazil. We used geometric morphometrics to identify the existence of patterns of variations of shape and size in Africanized honey bees in Brazil 16 years after the classic study with this species, allowing a temporal and spatial comparative analysis using new technological resources to assess morphometrical data. Samples were collected in 14 locations in Brazil, covering the five geographical regions of the country. The shape analysis and multivariate analyses of the wing allowed to observe that there is a geographical pattern among the population of Apis mellifera in Brazil. The geographical variations may be attributed to the large territorial extension of the country in addition to the differences between the bioregions.
Search for the Signatures of a New-Born Black Hole from the Collapse of a Supra-massive Millisecond Magnetar in Short GRB Light Curves

`Internal plateau' followed by a sharp decay is commonly seen in short gamma-ray burst (GRB) light curves. The plateau component is usually interpreted as the dipole emission from a supra-massive magnetar, and the sharp decay may imply the collapse of the magnetar to a black hole (BH). Fall-back accretion onto the new-born BH could produce long-lasting activities via the Blandford-Znajek (BZ) process. The magnetic flux accumulated near the BH would be confined by the accretion disks for a period of time. As the accretion rate decreases, the magnetic flux is strong enough to obstruct gas infall, leading to a magnetically-arrested disk (MAD). Within this scenario, we show that the BZ process could produce two types of typical X-ray light curves: type I exhibits a long-lasting plateau, followed by a power-law decay with slopes ranging from 5/3 to 40/9; type II shows roughly a single power-law decay with slope of 5/3. The former requires low magnetic filed strength, while the latter corresponds to relatively high values. We search for such signatures of the new-born BH from a sample of short GRBs with an internal plateau, and find two candidates: GRB 101219A and GRB 160821B, corresponding to type II and type I light curve, respectively. It is shown that our model can explain the data very well.
Français Les) face à la culture : de l'exclusion à l'éclectisme.

En s'appuyant sur de nombreuses donnees chiffrees, l'auteur propose une analyse originale de la connaissance que les francais ont du monde des arts et de la culture et de leurs comportements ainsi qu'une description detaillee des "principaux univers culturels" identifiables a l'echelle de la population francaise.
Generalized Thermodynamic Properties of Lifshitz black holes

The generalized effective potential for motion in Lifshitz geometry (with arbitrary value of both the dynamical exponent z and f(r)) is presented. Based on this effective potential energy, we shall show that bounded orbits are forbidden for positive values of z and allowed for negative values of z. The stability of these bounded orbits are analysed in full detail. Besides, by comparison, we quote a theorem which should be very helpful in searching thermodynamical properties of these gravitational black holes. Based on this theorem, generalized thermodynamic properties of Lifshitz black holes are computed. Examples are given where the entropy still satisfies the area law. The calculated mass, temperature and entropy satisfy both the first thermodynamic principle of black holes and a Smarr formula.
The Moderating Effects of Collectivistic Orientation on Psychological Ownership and Constructive Deviant Behavior

Psychological ownership has been theorized to result in positive organizational consequences because feelings of ownership can increase an individual’s sense of responsibility and prioritize organizational interests. Previous studies have found psychological ownership to be significantly related to job satisfaction, organizational commitment, and organizational citizenship behavior; therefore, this study proposes psychological ownership to be significantly related to constructive deviant behavior because it is considered to be functional behavior that is intended to improve the organization’s well-being. Furthermore, this study investigates the moderating effects of collectivistic orientation on psychological ownership and constructive deviant behavior. The study sampled 465 Korean employees and has found psychological ownership to be significantly related to innovative constructive deviant behavior and interpersonal constructive deviant behavior. For the moderating effects, collectivistic orientation moderated the relationships between psychological ownership and organizational constructive deviant behavior and interpersonal constructive deviant behavior.
Food Faddism: Its Determinants, Prevalence and Practices among Adult University Students in Ghana

Background: Food faddism is any dietary practice that either eliminates one or more of the essential food groups, or recommends consumption of one type of food in excess at the expense of other foods for extraordinary health benefit. It is of an extreme, exploitive and dubious nature, intended to produce results more quickly. This study therefore sought to identify the determinants, prevalence and the nature of the practice of food faddism. Methods: This study was cross-sectional involving 150 university students in Ghana. WHO Stepwise questionnaires were modified to collect all information. The data were analysed using SPSS and Excel software. Results: Prevalence of various forms of food faddism was found to be 65.3%. Ethnicity (p=0.045) and occupation of household head (p=0.046) were found to be influencing factors associated with the practice. Major explanations given for the practice were detoxification (48.0%) and enhancing functions of some body parts (41.3%). Foods associated with food faddism were mostly fruits, vegetables, seeds and herbs. Conclusion: Prevalence of food faddism was found to be unacceptably high among these students of higher learning (University). It can be inferred that if the prevalence of food faddism is so high among university students, then it could be projected that worse occurrences may be happening among people of lower levels of education.
Percutaneous Management of Extrahepatic Bile Duct Stones by Papillary Balloon Dilation and Pushing Using an Occlusion Balloon

To report our experience of percutaneous elimination of extrahepatic bile duct stones by occlusion balloon pushing after papillary balloon dilation. Between May 2006 and November 2007, sixteen patients were treated percutaneously for extrahepatic bile duct stones. Thirteen patients were treated via transhepatic route, one patient via T-tube route, one patient via transcystic duct drainage route, and one patient via transhepatic gallbladder drainage route. The procedure had two main steps. The first step was dilation of the papilla of common bile duct by an angioplasty balloon, and the second step was antegradely pushing the stones into duodenum using an occlusion balloon. The diameter of extrahepatic bile duct stone was 9±2.4 mm. The number of stone was 1.4±0.9. Successful stone removal was achieved in 14 patients (87.5%). Twelve patients required one session for complete stone clearance and two patients required two sessions. Technical failure was noted in two patients. The reasons for failure were dilated lower inserted cystic duct in one patient and intolerable pain during dilation and pushing in the other patient. Seven patients felt epigastric pain after the procedure, which subsided within two days. There was no significant procedure related bleeding or clinical symptoms of acute pancreatitis. The percutaneous papillary balloon dilation and stone-push is a simple, effective and safe technique for treatment of patient with extrahepatic bile duct stones.
Energy Consumption as an Indicator of Hidden Economy: Comparative Analysis

Abstract Background: Hidden economy presents a major concern for all national economies, particularly for those of developing countries. Objectives: In this work, methods for determination of the size of hidden economy are discussed. Particular attention is devoted to the methods using electricity consumption as an indicator (the Lackó method and the Kaufmann and Kaliberda method). Methods/Approach: The modified Lackó method adapted for a single country and the sophisticated Kaufmann and Kaliberda method have been used. Results: It has been shown that such methods are effective in measurement of the hidden economy extent in small open economies exposed to severe external influences. The article presents results for Macedonia and their comparison with results for Croatia, as a good role-model for other states in Western Balkans. Conclusions: Model methods involving energy consumption are particularly efficient in determination of the size of the hidden economic sector in small open economies as those of the Western Balkan countries
Potentially inappropriate medication use among elderly patients from a Brazilian general hospital

The aim of this study was to determine the profile of the pharmacotherapy used by hospitalized elderly. A cross-sectional study was conducted at a Brazilian charitable general hospital. Drug prescriptions for hospitalized elderly patients (age≥60 years), dated from May to September 2010, were the source of data for this study and retrospectively analyzed (n=1,783). Polypharmacy (use of 5 or more drugs) and potentially inappropriate medications (PIMs – according to the Beers Criteria) were identified. Associations between sex, age, admission for cardiovascular disease or hospital stay and polypharmacy or PIM prescription were studied using univariate analysis (Pearson’s Chi-square test). The association between polypharmacy and PIM prescription was also evaluated. A total of 204 elderly were hospitalized (mean age = 75 years) during the study period. The most commonly prescribed drugs acted on the cardiovascular system (29%) and the alimentary tract and metabolism (26%). Around 90% of the elderly were submitted to polypharmacy and 59% had, at least, one prescription of PIMs. A hospital stay of five days or more was associated with polypharmacy and PIM prescription. This study revealed a worrying drug utilization profile of high PIM use and polypharmacy practice. There is a need to implement strategies to improve geriatric prescribing.
The rapid evolution of AGN feedback in brightest cluster galaxies: switching from quasar-mode to radio-mode feedback

We present an analysis of the 2–10 keV X-ray emission associated with the active galactic nuclei (AGN) in brightest cluster galaxies (BCGs). Our sample consists of 32 BCGs that lie in highly X-ray luminous cluster of galaxies (L X−ray (0.1−2.4keV)>3×10 44 ergs −1 ) in which AGN-jetted outflows are creating and sustaining clear X-ray cavities. Our sample covers the redshift range 0 < z < 0.6 and reveals strong evolution in the nuclear X-ray luminosities, such that the black holes in these systems have become on average at least 10 times fainter over the last 5 Gyr. Mindful of potential selection effects, we propose two possible scenarios to explain our results: (1) either that the AGN in BCGs with X-ray cavities are steadily becoming fainter, or more likely, (2) that the fraction of these BCGs with radiatively efficient nuclei is decreasing with time from roughly 60 per cent at z ≈ 0.6 to 30 per cent at z ≈ 0.1. Based on this strong evolution, we predict that a significant fraction of BCGs in z ≈ 1 clusters may host quasars at their centres, potentially complicating the search for such clusters at high redshift. In analogy with black hole binaries and based on the observed Eddington ratios of our sources, we further propose that the evolving AGN population in BCGs with X-ray cavities may be transiting from a canonical low/hard state, analogous to that of X-ray binaries, to a quiescent state over the last 5 Gyr.
Bitcoin and Web Search Query Dynamics: Is the Price Driving the Hype or is the Hype Driving the Price?

In many countries safety nets consist predominantly of universal subsidies on food and fuel. A key question for policy makers willing to shift to targeted safety nets is under what conditions middle-class citizens would be supportive of redistributive programs. Results from a behavioral experiment based on a nationally representative sample in Jordan reveal that increasing transparency in benefit delivery makes middle-class citizens (particularly among the youth and low-trust individuals) more willing to forgo their own welfare to benefit the poor. Moreover, increasing transparency enhances the relative support for cash-based safety nets, which have greater impact on poverty compared with in-kind transfers, but may be perceived as more prone to elite capture.
Rates of Return to Education: The View of Students in Switzerland

Wage expectations are important determinants for individual schooling decisions. However, research on individual expectations of students is scarce. The paper presents the Swiss results of a survey that was conducted in 10 European countries. Its main findings are that point estimates of wages after graduation are close to actual wages, whereas the expectations of the wage gain in the first ten years of professional experience exceed the actual wage gains significantly. While most of the deviation of individual expectations from actual wages can not be explained, we find that rates of return to education that are calculated on the base of individual wage and cost expectations as well as individual time preferences can be explained partially by the seniority of students, the self-perception of their academic performance and their subjective job perspectives. The high degree of unexplained heterogeneity in individual expectations and the differences between groups of students show the necessity to analyse the question further with bigger and more representative samples.
Can country continuously compete on cheap labor cost? A system dynamics approach to FDIpolicy analysis

This paper studies the interaction of FDI, wages and employment of workers under different policies in countries that use cheap labor cost strategies such as Thailand. The interactions are analyzed by using system dynamics modeling. The model simulation shows that FDI drives salaries up when the demand for workers reaches the limit of the working population. A higher salary, in turn, causes low labor cost seeking FDI to withdraw their investment. Government policies aimed to sustain cheap labor cost seeking FDI are examined. Policies to subsidize foreign operation such as providing tax breaks and reducing the time to set up a new firm can stimulate FDI in the short term but in the long term the foreign firms still withdraw their investments due to high salaries. An increase in the working population or a reduction in firm hiring process time, on the other hand, does not affect the volume of FDI. Thus, the country cannot rely on a low labor cost strategy on the long term.
Finance and Growth Nexus in Nigeria: Do Bank-Based and Market-Based Argument Matter?

This paper contributes to the finance and growth debate by examining the channels through which bank and market promote economic growth in Nigeria. The paper used 17 years time series data, 1992-2008, to fill this knowledge gap. The formulated models were estimated with the Ordinary Least Square regression. The growth rate of GDP per capita was adopted as the dependent variable, while bank size, bank activity, bank efficiency, market size, market activity and market efficiency were adopted as the independent variables. The regression coefficient for bank size, bank efficiency, market size and market efficiency were positive in promoting economic growth. However, the coefficient of bank activity and market activity were negative in promoting economic growth in Nigeria. The finding of the study relegates the financial structure arguments to the shadows, and recommends for favourable macroeconomic environment that will allow for the development of the financial system.
SPECIES RICHNESS AND ABUNDANCE OF LOW-TRUNK HERB EPIPHYTES IN RELATION TO HOST TREE SIZE AND BARK TYPE, EASTERN AMAZONIA

The composition and structure of the low-trunk epiphytic herb assembly as well as its vertical distribution were studied. DBH of host tree and bark type influence species richness and abundance in a nonlooded lowland tropical rainforest in Eastern Amazonia (1o57’36"S 51o36’55"W). A total of 37 epiphytic herb species were identified, among which 60% were Araceae. Species richness and abundance of epiphytic herbs showed tendency of positive correlation with host tree size and no relationships with bark type. Low positive correlation may be a by-product of the predominance of trees with smaller diameter in our sample rather than a reflection of neutral relationship. The absence of relationships with bark type may be partially explained by the large number of secondary, generalist, hemi-epiphytes and also may reflect the absence of suitable substrate in trees with smaller diameter.
Mass-scaling as a method to constrain outflows and particle acceleration from low-luminosity accreting black holes

The ‘Fundamental Plane of black hole accretion’ (FP), a relation between the radio luminosities (LR), X-ray luminosities (LX) and masses (MBH) of hard/quiescent state black hole binaries and low-luminosity active galactic nuclei, suggests some aspects of black hole accretion may be scale invariant. However, key questions still exist concerning the relationship between the inflow/outflow behaviour in the ‘classic’ hard state and quiescence, which may impact this scaling. We show that the broad-band spectra of A0620-00 and Sgr A* (the least luminous stellar mass/supermassive black holes on the FP) can be modelled simultaneously with a physically motivated outflow-dominated model where the jet power and all distances are scaled by the black hole mass. We find we can explain the data of both A0620-00 and Sgr A* (in its non-thermal flaring state) in the context of two outflow-model scenarios: (1) a synchrotron-self-Compton dominated state in which the jet plasma reaches highly sub-equipartition conditions (for the magnetic field with respect to that of the radiating particles), and (2) a synchrotron-dominated state in the fast-cooling regime in which particle acceleration occurs within the inner few gravitational radii of the black hole and plasma is close to equipartition. We show that it may be possible to further discriminate between models (1) and (2) through future monitoring of Sgr A*'s submm/infrared/X-ray emission, in particular via time lags between the variable emission in these bands.
Does technology make us poor spellers? The effects of CMC on standard spelling

In this digital era, technology has been accused of causing declining language standards. However, not much research has been put forth to support this claim. Therefore, this literature review seeks to examine current studies investigating the impact of Computer Mediated Communication (CMC) on standard spelling. Features of CMC are presented, as well as learning theories relevant for the understanding of the linguistic debate. Moreover, results from research on CMC in formal and informal contexts are addressed, followed by an examination of studies conducted on different educational levels. This review suggests that there are indeed both positive and negative aspects of CMC use, seemingly related to context and age of participants. Issues regarding methodology are discussed, as well as implications for language education. Lastly, suggestions for future research are proposed.
Child-Centered Play Therapy in Management of Somatoform Disorders

Introduction: Child-centered play therapy is a well recognized and research-supported form of child psychotherapy. Methods: Fifteen children in the age range of 5-11 years (eight girls and seven boys) with somatoform disorder were administered 25 sessions of non directive play therapy. Parents received 3 reflective counseling sessions. Children were assessed with Children’s Global Assessment Scale, Interview Schedule for Children and Adolescents, and Child Behaviour Checklist. Results: The mean scores on global functioning and social competence increased and symptom severity decreased significantly at post assessment. Conclusions: Child-centered play therapy along with reflective parent counseling is an effective intervention for somatoform
Teachers’ Utilization of School Facilities and Academic Achievement of Student Nurses in Human Biology in Schools of Nursing in Akwa Ibom State, Nigeria

The study examined the relationship between teachers’ utilization of school facilities and academic achievement of student nurses in Human Biology in schools of Nursing in Akwa Ibom State. Four (4) specific objectives, four (4) research questions and four (4) null hypotheses were formulated to guide the study. Ex-post facto survey design was adopted for the study. The research population was One Hundred and Seventy Three (173) student nurses in Preliminary Training Session (PTS) in the three (3) accredited Schools of Nursing in Akwa Ibom State. The sample size of One Hundred (100) students was selected for the study using proportionate stratified random sampling technique. The researcher developed two (2) instruments tagged ‘Teachers’ Utilization of School Facilities Questionnaire (TUSFQ)’ and ‘Students’ Achievement Test on Human Biology (SATHB)’ used in collecting data for the study. The TUSFQ and SATHB were validated through face validity by three (3) experts in the Test and Measurement unit of Faculty of Education, University of Uyo, Uyo and three (3) other experts in Directorate of Nursing Services, Ministry of Health, Uyo respectively. The reliability coefficients of 0.82 and 0.74 for TUSFQ and SATHB respectively were established using Spearman Brown Reliability Analysis. Pearson’s Product Moment Correlation (PPMC) was used for data treatment. The findings of the research revealed that there exists significant positive relationship between teachers’ utilization of school facilities (library, laboratory, information and communication technology (ICT) center and recreation center) and academic achievement of student nurses in Human Biology. Based on the findings of the study, it was recommended amongst others that teachers should make good effort in incorporating the available school facilities in their pedagogical practices to develop themselves, and thereby promoting the academic growth of learners. Keywords: Utilization, School Facilities, Academic Achievement