Miracle-dz/UniFAR-FTUs huggingface dataset:
PDF4LHC recommendations for LHC Run II

We provide an updated recommendation for the usage of sets of parton distribution functions (PDFs) and the assessment of PDF and PDF+$\alpha_s$ uncertainties suitable for applications at the LHC Run II. We review developments since the previous PDF4LHC recommendation, and discuss and compare the new generation of PDFs, which include substantial information from experimental data from the Run I of the LHC. We then propose a new prescription for the combination of a suitable subset of the available PDF sets, which is presented in terms of a single combined PDF set. We finally discuss tools which allow for the delivery of this combined set in terms of optimized sets of Hessian eigenvectors or Monte Carlo replicas, and their usage, and provide some examples of their application to LHC phenomenology.
Structural aspects of the zygotic embryogenesis of Acca sellowiana (O. Berg) Burret (Myrtaceae)

Acca sellowiana apresenta ovulos anatropos, bitegumentados e crassinucelados. Os tegumentos externo e interno sao constituidos por duas camadas de celulas, exceto na regiao da micropila em que tem maior numero de camadas; a micropila apresenta-se em ziguezague. O aparelho oosferico ocupa a regiao micropilar com sinergides apresentando aparato fibrilar conspicuo. Na regiao calazal, as tres antipodas estao presentes antes da ocorrencia da dupla fecundacao. O zigoto e formado 21 dias apos a polinizacao controlada, e o endosperma do tipo nuclear ja esta presente. O zigoto sofre a primeira divisao mitotica no 24o dia. Embrioes nas fases globular, cordiforme e torpedo foram observados no 30o, 45o e 60o dia apos a polinizacao, respectivamente. O embriao maduro, caracterizado pela presenca de um eixo hipocotilo-radicular bem desenvolvido e com dois cotiledones carnosos e dobrados, foi observado apos 120 dias da polinizacao. As sementes sao exospermicas e com um unico embriao do tipo espiral, caracteristico de Myrtinae. Os estudos da embriogenese zigotica de A. sellowiana mostram que esta especie apresenta caracteristicas embriologicas que se adequam ao conhecido para Myrtaceae (Myrteae, Myrtinae), e ampliam o conhecimento sobre a reproducao sexual dessa especie nativa, cujo cultivo comercial tem sido incrementado.
Quality of Work Life: an evaluation of Walton model with analysis of structural equations

The aim of this study was to analyze the consistency of an instrument for quality of work life evaluation proposed by Walton (1973), based on adequate and fair compensations, working conditions, use of capacities, opportunities, social integration and constitutionalism at work, occupied space by work in the life, and social relevance and importance of work dimensions. Thus, a field research was conducted through a survey with 518 higher education institution employees in a town of Minas Gerais state. So, an analysis of structural equations was performed using the partial least squares method (PLS). The results showed that adequate and fair compensations, working conditions, constitutionalism and occupied space by work in the life dimensions are suited for the analysis presented.
EFFECT OF CARBOHYDRATE (STARCH) LEVEL IN PURIFIED DIETS ON THE GROWTH OF PENAEUS INDICUS

Four purified diets were formulated using casein, gelatin, starch, fish oil, groundnut oil, vitainins, minerals and cellulose. The carbohydrate in the dietsi was increased from 10 to 40% Tay varying the starch content to study the effect of dietary carbohydrate level on the growth, survival and food conversion of the prawn Penaeus indicus The protein and the lipid contents were kept constant in all the diets. Feeding experiments conducted in the laboratory on the juvenile P. indicus indicated that the growth of prawn increased with increase in the dietary carbohydrate level from 10 to 40% (P <; 0.01). The food-conversion efliciency and the rate of Sfurvival improved with the increase of carbohydrate level in the diet. The growth also increased with the increase of carbohydrate calorie ratio, while it was better with lower protein carbohydrate ratio of the diets.
Heavy metal uptake in foraminiferal calcite: results of multi-element culture experiments

Abstract The incorporation of heavy metals into the test of the shallow water benthic foraminifer Ammonia tepida was investigated under controlled laboratory conditions. Except forthe concentrations of the trace elements, all other culture conditions such as pH, tem- 5 perature and salinity were kept constant. In the experiments, the concentrations ofNi, Cu and Mn were 5, 10, and 20 times higher than those in natural North Sea water,whereas in a control experiment foraminifera were cultured in ﬁltered natural North Seawater. Concentrations of Cu and Ni from newly grown chambers were determined bymeans of both µ -synchrotron XRF and laser ablation inductively coupled plasma mass 10 spectroscopy (LA-ICP-MS). Both independent analytical approaches agreed within theanalytical uncertainty intervals. The calculated partition coeﬃcients were 0.17±0.09and 1.3±0.7 for Cu and Ni, respectively. Potential toxic and / or chemical competitioneﬀectsmighthaveleadtoadecreasingincorporationrateofCuandNiintothecalciteofthe specimens of the tank with the highest chemical concentrations. Mn showed great
Prevalence of Back Pain and Associated Factors among Bank Staff in Selected Banks in Kigali, Rwanda: A Cross Sectional Study

Background: Banking has made people run and develop their businesses well, use of computers is a revolution in which work is made easier in banks, it has however been revealed to cause musculoskeletal pain. Computer use requires prolonged sitting or improper body alignment which strains the vertebral column causing back pain. Objectives: The study aimed at determining the prevalence and factors associated with back pain among bank staff in Kigali, Rwanda. Methods: This was a descriptive cross sectional study employing a quantitative approach. A total of 144 employees from two banks constituted the sample size for the study through random sampling and interviewed using a pre-tested structured questionnaire. Chi-square test (p<0.05) and odds ratio with corresponding 95% confidence interval were computed to establish the association between back pain and independent variables. Binary logistic regression model was used to identify variables independently associated with back pain. Results: The prevalence of back pain among the bank staff was found to be 45.8%. Multiple logistic regression revealed that having no break off during working time {AOR=3.96; 95% CI=1.71-9.20; p<0.001}, sitting in a back bent position {AOR=9.20; 95% CI=2.41-35.17; p=0.001} and sitting in back twisted position {AOR=25.87; 95% CI=6.71-99.65; p<0.001} were predictors of back pain. Conclusion: This study shows that there is a high prevalence of back pain among bank staff and factors like sitting in back bent, back twisted, and having no break off during working time are independently associated with back pain among bank staff. Therefore, it is recommended that break offs and proper ergonomics to avoid back twists and back bents are needed to prevent back pain.
Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe3O4 for selective extraction of hexavalent uranium

A selective and reliable method for the extraction of trace quantities of U(VI) by the use of a magnetic U(VI) ion-imprinted polymer (IIP) was developed. In this study, oleic acid (OA) coated magnetite nano-particles were incorporated into the cross-linked polymeric matrix of the selective sorbent, in order to gain the physical advantages of separating the polymers. Many physico-chemical factors influence the adsorption process; uranyl ion uptake ability based on these parameters was investigated. The optimum parameters obtained were sample pH 4,50 mg of the magnetic polymer, a contact time of 45 min and an initial U(VI) concentration of 2 mg·l -1 . The adsorption capacities for the magnetic NIP and IIP were found to be 0.95 mg·g 1 and 1.21 mg·g -1 , respectively. The adsorption behaviour of U(VI) in the presence of other competing metal ions onto the cross-linked magnetic polymers was also examined in binary mixtures and the order of selectivity was found to be U(VI) > Pb(VI) > Ni(II). The resulting magnetic nano-composite polymers were found to be stable up to the sixth cycle of use and reuse. The Freundlich adsorption model was used for the mathematical description of the adsorption equilibrium and the adsorption kinetic data fitted the pseudo-first-order model with R2 > 0.92. Keywords: Bulk, magnetic imprinted polymers, oleic acid, uranium
Pose insensitive Face Recognition Using Feature Transformation

Summary Face recognition has diverse applications especially as an identification solution which can meet the crying needs in security areas. Pose problem is a big challenge applying this technology under real world conditions. Appearance based approach was proposed. Face recognition was implemented by reconstructing frontal view features using linear transformation. Experiments on popular FERET database proved that the proposed method can cope with the head rotation roughly within half profile view. Compared with algorithms model based approaches, feature transformation method is not dependent on heavy computation and has merit of easy implementing in live conditions. Popular feature extractions, least square (LS) and total least square (TLS) solution in calculating were compared as well as.
Self-regulation capacity is linked to wellbeing and burnout in physicians and medical students: Implications for nurturing self-help skills

Self-regulation capacity relates to important self-help skills allowing individuals to effectively manage their thoughts, feelings, and actions to attain goals while mastering a demanding environment. The purpose of this study was to investigate the relationship between self- regulation capacity, psychological wellbeing, and burnout in 37 Canadian medical students and 25 physicians. Regression analyses showed that self-regulation capacity positively predicted psychological wellbeing and negatively predicted burnout for both groups. Concerning the dimensions of purpose in life and environmental mastery, the benefits of self-regulatory capacity were particularly pronounced for physicians. Implications for developing self-regulation competence to maintain optimal mental health are discussed.
Regeneration and spatial distribution of seedling populations in Sudanian dry forests in relation to conservation status and human pressure.

Effects of conservation status and human population pressure on species composition, density and spatial distribution of seedling populations in Sudanian dry forests of Burkina Faso were studied. Data were collected from protected and unprotected forests at two sites differing in human population densities. A total of 62 species were recorded, representing 23 families and 48 genera, and the dominant families were Combretaceae and Caesalpiniaceae. Population pressure influenced significantly the species richness, but not conservation status. There were moderately significant differences in seedling densities between protected and unprotected forests at each site. The mature-juvenile relationships were generally weak in all cases (r 2 < 50%). The spatial distribution of the seedlings was mainly clumped, reflecting the dominance of clonal propagation. The protection provided by the present conservation status was inefficient in promoting regeneration. As most species have few seedlings, expediting the natural regeneration process inside and outside the forest reserve is recommended.
The EU-US total factor productivity gap : An industry perspective

This paper uses the EU KLEMS database to explore the industry specific determinants of the EU-US total factor productivity (TFP) growth gap which started to emerge in the mid-1990s. The bulk of this TFP gap is explained by the US's better performance in a handful of market service industries (most notably retail and wholesale trade) and ICT-producing manufacturing, whilst the EU exhibits a considerably stronger performance with respect to a number of network utilities. Our analysis of the determinants of TFP growth across countries and industries shows that, as found in previous analyses (e.g., Nicoletti and Scarpetta (2003), Griffith, Redding, and Van Reenen (2004), Inklaar, Timmer and Van Ark (2008)), TFP growth appears to be driven by catching-up phenomena associated with the gradual adoption of new-vintage technologies. Compared with previous analyses, our paper suggests that TFP growth is also significantly driven by developments taking place at the “technological frontier”, and that these "frontier" effects are becoming stronger since the mid-1990's compared with the catching-up drivers of TFP. Industries with higher R&D expenditures and higher adoption rates for ICT-intensive technologies appear to exhibit higher TFP growth rates, other things being equal. R&D is a crucial determinant of TFP growth in ICT-producing manufacturing. With respect to the link between regulation and TFP, the paper suggests that product market regulations are related to reduced TFP growth but only in market services, most notably in the network utilities. Finally, in the retail & wholesale trade industry, cyclical consumption dynamics which permit a better exploitation of scale economies are a highly significant determinant of TFP growth.
Expertise, university Infrastructure and cognitive logic: Assessing students who start ventures

The present study explores how and why student entrepreneurs choose causal or effectual cognitive logic during venture creation and what role the university entrepreneurial infrastructure plays in this choice. We contribute to the existing literature on the contextual understanding of entrepreneurial decision-making by examining the role of business experience of student entrepreneurs in venture cognitive logic. Using the Global University Entrepreneurial Spirit Students' Survey (GUESS), the study involves a sample of 2,324 student entrepreneurs from 26 countries. Our findings indicate that favorable university entrepreneurial environments and students' involvement in networking and coaching are positively associated with a reliance on causal logic with inexperienced student entrepreneurs. With experienced student entrepreneurs, favorable university environments and participation in entrepreneurship courses, networking and coaching offerings are positively related to the proclivity towards effectual logic. Evidence is produced that effectuation and causation are orthogonal constructs that are intertwined and can unfold simultaneously.
Day-care patients and inpatients have similar visual acuity

Cataract is a cause of avoidable blindness and its prevalence increases with age. Cataract surgery is the only possible therapeutic modality for improving visual function in cataract patients. The rising numbers of cataract patients require a type of cataract surgery with minimal side effects and without hospitalization. In this connection the day care cataract surgery has been introduced, with excellent results. Therefore the aim of the present study was to compare the visual acuity of day-care patients and inpatients after extracapsular cataract extraction (ECCE). A comparative observational study was carried out on 30 mature senile cataract patients with regard to type of care after ECCE surgery. The study subjects were allocated to two groups of 15 subjects each, i.e. the day-care group and the in-patient group. The patients were observed postoperatively on the first day, first week, fourth week, and eighth week. They subsequently were corrected for best visual acuity. Hypothesis testing was done using independent t-test and the Mann-Whitney test. The study results indicated that the visual acuity of the subjects after the eighth postoperative week did not differ significantly between both groups (p>0.05). There was no significant difference in outcome or risk of postoperative complications between day care and in-patient cataract surgery.This study therefore presents evidence that both post-ECCE day-care as well as post-ECCE inpatients had similar visual acuity levels.
Perspectives of LIS academics and post graduates on standards-based and socially-constructed metadata approaches

With the aim of developing a conceptual metadata framework that takes into account user-driven metadata, this paper presents the perspectives of library and information science (LIS) academics and postgraduates on optimality of standards-based versus socially-constructed metadata approaches. Based on analysis of data collected through eleven in-depth interviews, three broad metadata approaches are identified: standardsbased, socially-constructed and mixed-metadata approaches. In relation to standardsbased approaches, the paper discusses the obsolescence of the OPAC in comparison to contemporary web search engines and the limitations of standards in addressing the changing user needs, expectations and evolving vocabularies. The paper also discusses the roles ascribed to Web 2.0 and Linked Data technologies in libraries, and the importance of enriching information objects with metadata that better conveys the various perspectives of users. The paper suggests a mixed-metadata approach that includes the strengths of the standards-based metadata approaches and the social space of metadata that comes from socially-constructed metadata approaches.
Ices on (90377) Sedna: confirmation and compositional constraints

We report measurements of reflectances of 90377 Sedna at $\lambda > 2.5$ μ m using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. Sedna orbits well beyond even the Kuiper Belt, with a perihelion distance of 76 AU, and is therefore very faint as viewed from Earth, despite its relatively large size. Previously published near-infrared spectra show possible signatures of CH 4 and N 2 at ~2.3 and ~2.15 μ m, respectively. These and other ices also exhibit much stronger absorptions at $\lambda > 2.5~\mu$m, providing the motivation for the present work. We detected flux from Sedna at 3.6 and 4.5 μ m, but not at 5.8 or 8.0 μ m. The measured IRAC fluxes are converted to geometric albedos and combined with previous measurements of the visible and near-infrared spectra. Strong absorption at both 3.6 and 4.5 μ m (relative to the 2.0–2.5 μ m region) is readily apparent, confirming the presence of ices on the surface of Sedna. Spectral modeling of the full wavelength range (0.4–4.5 μ m) provides further constraints. We find that CH 4 is required to fit the new data points, but that these new data points can not be adequately described with models containing CH 4 and N 2 as the only ices. We suggest that H 2 O ice is also present. Several characteristics of the spectrum of Sedna suggest an absence of atmospheric volatile transport, in contrast to the large objects Eris and 2005 FY 9 .
Monte Carlo Top Quark Mass Calibration

The most precise top quark mass measurements use kinematic reconstruction methods, determining the top mass parameter of a Monte Carlo event generator, $m_t^{\rm MC}$. Due to the complicated interplay of hadronization and parton shower dynamics in Monte Carlo event generators relevant for kinematic reconstruction, relating $m_t^{\rm MC}$ to field theory masses is a non-trivial task. In this talk we report on a calibration procedure to determine this relation using hadron level QCD predictions for 2-Jettiness in $e^+e^-$ annihilation, an observable which has kinematic top mass sensitivity and a close relation to the invariant mass of the particles coming from the top decay. The theoretical ingredients of the QCD prediction are reviewed. Fitting $e^+e^-$ 2-Jettiness calculations at NLL/NNLL order to PYTHIA 8.205, we find that $m_t^{\rm MC}$ agrees with the MSR mass $m_{t,1\,{\rm GeV}}^{\rm MSR}$ within uncertainties. At NNLL we find $m_t^{\rm MC} = m_{t,1\,{\rm GeV}}^{\rm MSR} + (0.18 \pm 0.22)\,{\rm GeV}$. $m_t^{\rm MC}$ can differ from the pole mass $m_t^{\rm pole}$ by up to $600\,{\rm MeV}$, and using the pole mass generally leads to larger uncertainties. At NNLL we find $m_t^{\rm MC} = m_t^{\rm pole} + (0.57 \pm 0.28)\,{\rm GeV}$ as the fit result. In contrast, converting $m_{t,1\,{\rm GeV}}^{\rm MSR}$ obtained at NNLL to the pole mass gives a result for $m_t^{\rm pole}$ that is substantially larger and incompatible with the fit result. We also explain some theoretical aspects relevant for employing the C-parameter as an alternative calibration observable.
A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

The objective of the current study was to separate saturated fatty acids (SFAs) from high free fatty acid crude palm oil fatty acid mixture using the methanol crystallisation method. The development of methanol crystallisation method procedure was based on various parameters. The fatty acid composition was determined by using gas chromatography-flame ionisation detector (GC-FID) as Fatty Acid Methyl Esters. The highest percentage of SFAs was more than 89% with the percentage yield of 48.9% under the optimal conditions of the fatty acids-to-methanol ratio of 1:15 (w/v), the crystallisation temperature of −15 °C, and the crystallisation time of 24 hours, respectively. After a double crystallisation, the composition of separated SFAs contains 90% of palmitic acid (C 16:0 ) as a major component and 5.8% of stearic acid (C 18:0 ), respectively. Moreover, almost 4.2% of oleic acid (C 18:1 ) was observed in the saturated solid product. Based on the results, the use of methanol as a crystallisation solvent is recommended because of its high efficiency, low cost, stability, obtainability, and comparative ease of recovery.
Thermal comfort, physiological responses and performance during exposure to a moderate temperature drift

SUMMARY The objective of this research was to study the effects of a moderate temperature drift on human thermal comfort, physiological responses, productivity and performance. A dynamic thermophysiological model was used to examine the possibility of simulating human thermal responses and thermal comfort under moderate transient conditions. To examine the influence of a moderate temperature ramp, a climate room set-up with experimental subjects was used. Eight subjects visited the climate room on two occasions: 1) exposure to a transient condition (a moderate temperature ramp) and 2) a steady temperature corresponding with a neutral thermal sensation (control situation). During the experiments both physiological responses and thermal sensation were measured. Productivity and performance were assessed with a ‘Remote Performance Measurement’ (RPM) method. Physiological and thermal sensation data indicate significant differences between the transient condition and the control situation. Productivity and performance tests show no significant changes between the two situations. Simulations obtained with the thermophysiological model were in good agreement with the measurements. Possible improvements of the performance and productivity tests and the thermophysiological model will be discussed.
Audit Quality and Earnings Management in the Tunisian Context

In this study, we test the effect of the implementation of the financial security law (n° 2005-96) and the audit quality (Big 4 auditors, auditor industry specialization and audit tenure) on constraining the extent of real and accruals based earnings management in the Tunisian context. Using 319 firm-year observations during the period 2000-2010, our results suggest that auditor industry specialization and Big 4 auditors associated with lower levels of accruals earnings management. We also find that the Big 4 auditors enhance the extent of real earnings management (REM). Further, we document that longer auditor tenure is not associated with greater real and accruals earnings management. Finally, our findings suggest that the adoption of the financial securities law of 2005 is not effective on reducing earnings management in the