Miracle-dz/UniFAR-FTUs huggingface dataset:
The LX-T, LX-σ, and σ-T Relations for Groups and Clusters of Galaxies

While in the hierarchical model of structure formation, groups of galaxies are believed to be a scaled-down version of clusters of galaxies, a similarity break in the fundamental laws may occur on the group scale, reflecting a transition between galaxy-dominated and intracluster-medium-dominated properties. In this paper we present an extensive study of the relations between the X-ray luminosity (LX), the temperature (T) of hot diffuse gas, and the velocity dispersion (σ) of galaxies for groups and clusters of galaxies, based on the largest sample of 66 groups and 274 clusters drawn from the literature. Our best-fit LX-T and LX-σ relations for groups are given by LX ∝ T5.57±1.79 ∝ σ2. 35±0.21, which deviates remarkably from those for clusters: LX ∝ T2.79±0.08 ∝ σ5. 30±0.21. The significance of these correlations has been justified by both the co-consistency test and the Kendall τ statistics. We have thus confirmed the existence of a similarity break in the LX-T and LX-σ relations between groups and clusters as claimed in previous work, although the best-fit σ-T relations remain roughly the same in the two systems: σ ∝ T0.64. Alternatively, the significant disagreement between the observationally fitted LX-T and LX-σ relations for groups and those expected from a perfect hydrostatic equilibrium hypothesis indicates that the X-ray emission of individual galaxies and the nongravitational heating must play a potentially important role in the dynamical evolution of groups. Therefore, reasonable caution should be exercised in the cosmological applications of the dynamical properties of groups.
The Search for Quantum Gravity Signals

We give an overview of ongoing searches for effects motivated by the study of the quantum‐gravity problem. We describe in greater detail approaches which have not been covered in recent “Quantum Gravity Phenomenology” reviews. In particular, we outline a new framework for describing Lorentz invariance violation in the Maxwell sector. We also discuss the general strategy on the experimental side as well as on the theoretical side for a search for quantum gravity effects. The role of test theories, kinematical and dymamical, in this general context is emphasized. The present status of controlled laboratory experiments is described, and we also summarize some key results obtained on the basis of astrophysical observations.
Stomatos39 ingles.indd

Purpose: One of the major challenges encountered in treatment of curved canals is maintaining their original features. This study aimed to examine whether the type of system used with NRT® rotary instruments might infl uence the occurrence of deviation in the apical region. Methods: Twenty simulated curved canals were divided into two experimental groups. In Group 1, canal preparation was performed with the pneumatic hand piece, using constant speed, but without torque control. In Group 2, an electric motor with constant speed and torque control was used. The simulated blocks were photographed before and after preparation using a platform to maintain the same position in both photographs. Images were manipulated in Adobe Photoshop® to evaluate deviation at 1 mm and 3 mm from the working length (WL). The t test was used for statistical analysis of data. The signifi cance level was set at 1%. Results and Conclusion: Group 2 (electric motor) had lower values for deviation at both locations analyzed (1 mm and 3 mm from the WL). In both groups, sites 3 mm from the WL had lower mean deviation than sites 1 mm from WL.
Management of bacterial wilt of tomato through consortium of biocontrol agents

Bacterial wilt of tomato, caused by Ralstonia solanacearum , is a very serious disease of tomato which causes huge economic losses year after year. R. solanacearum is a phytopathogenic bacterium that colonizes the xylem vessels of host plants leading to a lethal wilt disease. Bacterial wilt disease is very difficult to manage through traditional disease management practices. In the present study, three biocontrol agents namely Bacillus subtilis , Pseudomonas flourescens and Trichoderma viride , either alone or in combination, were used to study their effect for the management of bacterial wilt disease in sick pots of pathogen. It was found that application of consortium of both B. subtilis and T. viride along with neem cake and molasses completely hold off the disease and no disease incidence was observed. It was followed by application of Bacillus subtilis as seedling dip with foliar spray after 7 days of transplanting with 35.55 per cent disease incidence compared to 82.22 per cent disease incidence in untreated control. Maximum plant weight of 1.5 g observed with application of consortium of biocontrol agents before transplanting and application of Bacillus subtilis as seedling dip with foliar spray after 7 days of transplanting. However, maximum plant height of 19.0 cm was observed with application of consortium as drenching after five days of transplanting.
ANTIBACTERIAL EFFICACY OF HERBAL EXTRACTS & ESSENTIAL OILS FROM TRADITIONAL MEDICINAL PLANTS AGAINST BACTEROIDES FRAGILIS GROUP ISOLATED FROM CLINICAL SPECIMEN

Introduction : B fragilis group is one of the most frequently isolated anaerobic pathogens with the highest antibiotic resistance. They also exist as normal flora in the human gut and female genital tract. Due to empirical treatment and lack of monitoring, the incidence of drug resistant strains has increased and treatment has become challenging. The emergence of these resistant strains has created the demand for alternative drugs. Aim and objectives : To evaluate the antimicrobial efficacy of various medicinal herbal extracts against B fragilis group. Materials and Methods : A total of 58 strains of B fragilis group were isolated from various clinical samples and identified according to standard procedures. The essential oils from medicinal plants were extracted using Neo-Clevenger apparatus and alcohol extracts by Soxhlet apparatus. Screening of the antimicrobial activity of herbal products was performed by employing disc diffusion technique. Minimum inhibitory concentration was determined by agar dilution method. Results : Essential oils (lemongrass, cinnamon, nutmeg, clove bud, ginger, garlic) and Kokum extract (aqueous and alcohol) were tested for their antibacterial efficacy. Essential oils of Cinnamon, clove and lemongrass were very active to these organisms with a percentage of 98.2%, 96.5%, 89.6% respectively. The MIC ranges from 5µg/ml to 0. 156µg/ml for cinnamon oil. Conclusion : The present study has demonstrated that herbal products exhibit good in vitro antimicrobial action against B fragilis group. The results suggest that they have high potential to open new avenues in the development of alternate therapeutic options.
FSV experience in support of the GT-MHR reactor physics, fuel performance, and graphite

The Fort St. Vrain (FSV) power plant was the most recent operating graphite-moderated, helium-cooled nuclear power plant in the United States. Many similarities exist between the FSV design and the current design of the GT-MHR. Both designs use graphite as the basic building blocks of the core, as structural material, in the reflectors, and as a neutron moderator. Both designs use hexagonal fuel elements containing cylindrical fuel rods with coated fuel particles. Helium is the coolant and the power densities vary by less than 5%. Since material and geometric properties of the GT-MHR core am very similar to the FSV core, it is logical to draw upon the FSV experience in support of the GT-MHR design. In the Physics area, testing at FSV during the first three cycles of operation has confirmed that the calculational models used for the core design were very successful in predicting the core nuclear performance from initial cold criticality through power operation and refueling. There was excellent agreement between predicted and measured initial core criticality and control rod positions during startup. Measured axial flux distributions were within 5% of the predicted value at the peak. The isothermal temperature coefficient at zero power was in agreement more » within 3%, and even the calculated temperature defect over the whole operating range for cycle 3 was within 8% of the measured defect. In the Fuel Performance area, fuel particle coating performance, and fission gas release predictions and an overall plateout analysis were performed for decommissioning purposes. A comparison between predicted and measured fission gas release histories of Kr-85m and Xe-138 and a similar comparison with specific circulator plateout data indicated good agreement between prediction and measured data. Only I-131 plateout data was overpredicted, while Cs-137 data was underpredicted. « less
工作 负 荷 对员 工 满 意度的 实证 影响:工作 环 境的中介

The purpose of this study is to analyze the influence of workload on job satisfaction, and the extent to which work environment mediates the impact of workload on job satisfaction. The research data was collected by a questionnaire through the survey method. The sample consists of 81 employees randomly selected. Data analysis uses Partial Least Square supported by descriptive statistics and correlation. The results show that workload has no direct effect on job satisfaction, while work environment mediates the effect of workload on job satisfaction. Managers who intend to enhance employee job satisfaction should focus on creating a conducive work environment in the Sugar Industry. The study is an important landmark in highlighting the relationship of workload to employee job satisfaction in the Malang sugar industry that is examined for the first time, after reviewing the literature. This model will facilitate leaders to make plans of action to design workloads to increase employee job satisfaction through a conducive work environment.
Antecedents and Impacts of Electronic Procurement Usage among Jordanian Large Firms

E-procurement usage enables the organization to reduce business cost, access wider market and streamlining purchasing processes. Despite these benefits, the Ministry of Information and Communications technology in Jordan reported showed only 27.6% of the firms in Jordan use the e-procurement system, therefore the e-procurement usage among Jordanian firms still in early stage. This study employed a self-administered questionnaire survey for data collection purpose. The research model was validated based on the responses from 221 large firms in Jordan. Making an overall 40% response rate, and were analyzed using Partial Least Squares Structural Equation Modelling (PLS-SEM). The outcomes of this study show all technological, organizational and environmental factors used in this study were found to have influenced e-procurement usage among businesses. Furthermore, a significant positive association existed between e-procurement usage and firm performance. To conclude, this study has provided important insights to the government which could assist in designing and initiating suitable policies and programs to enhance the level of diffusion.
Palm kernel and shell separator.

Based on relevant physical properties of palm kernels and shells, a separator was designed to remove the palm kernels from the shells. The separator has two sections: one to remove and collect the shells; and a second to collect the kernels. The separator is power-driven and can reciprocate at three different crank speeds of 93, 120 and 200 min -1 and five crank radii of 20, 25, 35, 40 and 45 mm. At the crank speed of 93 min -1 and crank radius of 35 mm, kernel purity was 82%, kernel recovery 86.2% and separation efficiency 82.1%. The capacity of the separator is 446 kg h - 1 against a manual hand-picking rate of 60 kg h - 1 that characterize the dry method of separation in local palm kernel oil mills in Nigeria.
“Unerroric” of multistage discrete Fourier transform of digital signal without arithmetic operations of multiplication

There are the issues related to improving the quality of the spectral analysis of a polyharmonic signal by recurrent methods of the multistage discrete Fourier transform (DFT) based on differential digital filtering, which does not require multiplication. The concept of “unerroric” of this DFT of a digital signal is introduced only by addition and shift operations. The philosophical aspect of it is described. The aim of the study is to find a solution to the problem of improving the quality of spectral analysis of polyharmonic signal by recursive methods of multistage discrete Fourier transform based on differential digital filtering without performing arithmetic multiplication operations. Methods of research are the following: directed search and comparative analysis of results of multistage discrete Fourier transform on the basis of difference digital filtering of different orders at integer coefficients of this filtering. The study of the philosophical aspect of "unerroric" of digital methods of spectral analysis of a polyharmonic
FRACTIONATION AND KINETICS OF in vitro RUMINAL FERMENTATION OF THE CARBOHYDRATES OF FIVE SUGAR CANE VARIETIES

The objective of this study was to determine the chemical composition, the carbohydrates fractionation and the kinetics of in vitro ruminal fermentation of fibrous and non-fibrous carbohydrates of five sugar cane varieties. Variety SP79-1011 presented the highest value of total digestible nutrients (65.9%), followed by the varieties Java, RB72454, SP80-1842 and RB765418. The accumulated gas in the dry matter, at 48 and 96 hours of in vitro incubation was higher for the variety SP79-1011, showing significant difference in comparison with the varieties RB765418, RB72454 and SP80-1842, excepting the variety Java that did not show any difference in relation to the first one. The dry matter partitioning factor decreased with the incubation time, and there was no difference among the evaluated varieties. The characteristics of the production cycle influenced the in vitro ruminal fermentation of the evaluated varieties, being the varieties of precocious cycle (SP80-1842 and RB765418) the ones with the worst results. Amongst the varieties tested, SP79-1011 and Java presented the best results of gas production kinetics and total digestible nutrients.
The Hot Hand in Professional Darts

This paper examines whether a hot hand in professional darts exists or the people’s belief in players performing better after experiencing recent success is a fallacy. By the means of five hot hand statistics, tested in an individual and pooled player analysis, I have found substantial evidence for the existence of the hot hand for the great majority of players. Players hit more often after previous hits than misses, their throw outcomes are clustered and hit streaks appear more often and are longer than expected. Concluding from these results, the economic relevance of the hot hand fallacy should be reconsidered.
The Link between Fiscal Decentralization and Ethnolinguistic Fragmentation of the Population in OECD Countries 1

In this paper, authors propose a unique merged index of the ethnolinguistic fragmentation of the population to examine the relationship between fiscal decentralization and ethnolinguistic fragmentation. The initial hypothesis, based on the Decentralization Theorem, assumes a positive relationship. The basic dynamic panel data model covers a sample of 35 OECD countries in period 2000 – 2017, the reduced sample covers 26 OECD countries, excluding countries with the lowest income inequalities. Here the stronger effect of ethnolinguistic fragmentation on fiscal decentralization is expected. The research in-volves different types of fiscal decentralization (spending, revenue and tax de-centralization). Estimation results are confronted with estimations employing alternative indices of ethnic and linguistic fragmentation, previously used in researches. Findings support the initial hypothesis in the case of the spending decentralization on both samples. The confrontation with indices of ethnic or linguistic fragmentation shows significant effect of ethnic fragmentation. In the case of the reduced sample, results do not support the expectation of stronger effect of ethnolinguistic fragmentation on fiscal decentralization.
Genetic and Phenotypic Features of Blood and Genital Viral Populations of Clinically Asymptomatic and Antiretroviral-Treatment-Naive Clade A Human Immunodeﬁciency Virus Type 1-Infected Women (cid:1)

In the present study, we assessed whether human immunodeﬁciency virus type 1 (HIV-1) genetic compartmentalization was associated with phenotypic CCR5 (R5) or CXCR4 (X4) coreceptor usage differences between the systemic and the genital viral populations. Four clinically asymptomatic and treatment-naı¨ve clade A HIV-1-infected patients were selected from a cohort of 274 African women, because they were free of all the biological cofactors known to modify the kinetics of viral production in the genital tract. HIV RNA envelope sequences (V1 to V3) derived from plasma and cervicovaginal secretions (CVS) were ampliﬁed, subcloned, and sequenced. CCR5 or CXCR4 coreceptor usage was determined by production of recombinant viral particles, followed by single-cycle infection assays of indicator cell lines, using the tropism recombinant test. In these four selected patients, CVS-derived sequences appeared to be genetically distinct from blood-derived sequences ( P < 0.001). Two patients were found to harbor virus populations with only the R5 phenotype in both compartments, whereas viruses using CXCR4 in addition to CCR5 were detected in two other patients. In particular, one woman harbored genital virus populations with mixed R5 and X4 phenotypes associated with peripheral blood populations with only the R5 phenotype. These results demonstrate genetic compartmentalization of HIV between the plasma and genital secretions of clinically asymptomatic, treatment-naı¨ve, clade A-infected women. Also, for one patient, we report phenotypic coreceptor usage differences between the systemic (R5) and genital (R5/X4) viral populations. These features may be critical for the development of further mucosal vaccines, therapies, or new preventive strategies to block heterosexual transmission.
Isometric Strength of Upper Limb Muscles in Children and Adolescents using Hand-Held and Hand-Grip Dynamometry

Guillermo Mendez-Rebolledo (  guillermomendezre@santotomas.cl ) Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás Arturo Ruiz-Gutierrez Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás Sebastian Salas-Villar Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás Eduardo Guzman-Muñoz Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás Sergio Sazo-Rodriguez Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás Eric Urbina-Santibáñez Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás
Electronic Structure of AlB 2 -type U-Si Binary Intermetallic Compounds by Hybrid Density Functional Calculations

: In this paper the electronic structure of AlB 2 -type USi 2 has been explored using DFT, DFT+U and hybrid functional (HSE) methods. It reveals that c/a has great effect on the electronic structure, particularly the f orbitals, and there exists strong hybridization between the Si- p and U- d orbitals in AlB 2 -type USi 2 . These calculations uncover that there exists similarities on the crystal structure and the electronic structure between AlB 2 -type USi 2 and U 3 Si 5 . Present calculations provide a further insight on the U 3 Si 5 , a heavy-fermion system.
Interannual to decadal variability of the Kuroshio shelf intrusion and associated changes in the East China Sea

A westward shift of the Kuroshio toward the continental shelf in the East China Sea (ECS) contributes an exchange of different water masses between the western boundary current and the shelf region, and plays a key role in the regional ecosystem and climate over the ECS. The Kuroshio shelf intrusion (KSI) is known to occur during winter associated with the weakening of the Kuroshio east of Taiwan. This study reveals that interannual to decadal variability of the KSI is as significant as the seasonal variability, and investigates the long-term KSI associated changes in the ECS by analyzing various datasets including 25-year-long satellite altimetry, high-resolution ocean reanalysis products, surface drifters, etc. A series of composite analysis confirms that the KSI is related to the strengthening of the northeasterly wind, increase of the upward heat flux and overall surface warming in the ECS. Subsurface temperature, however, decreases in the shallow shelf region during the KSI events, possibly due to the topographic effect. Sub-mesoscale eddy kinetic energy (EKE) exhibits increase in the shelf region during the KSI, whereas the mesoscale EKE does not show significant changes associated with the KSI.
Toxicological and Protective Effect of Aqueous Stem Bark Extract of Khaya senegalensis (ASBEKS) on Liver of Experimental Rat

The use of medicinal plant to prevent and or cure liver problems is a practice not peculiar to developing countries. This research work evaluated oral LD 50 and hepatoprotective properties of aqueous stem bark extract of Khaya senegalensis (ASBEKS) in rats. The rats were grouped into six groups (GI – GVI) of six rats each. GI served as normal control, GII served as CCl 4 control, GIII was administered with only ASBEKS at a dose of 2.10 g/kg body weight per day for two weeks, while GIV, GV and GVI were administered with the extract at a dose of 1.05 g/kg, 2.10 g/kg and 3.15 g/kg respectively for two weeks. At the end of the first week, three rats from each group were selected and rats in groups II, IV, V and VI were attempted to be induced with liver damage using 120 mg of CCl 4 administered subcutaneously. The animals were euthanized after 24 hours of CCl 4 administration and liver function indices (ALT, AST, ALP, total protein, Albumin and Bilirubin) were assayed. The treatment was continued for the remaining three animals from each group, and at the end of second week of extract administration, liver damage was induced to groups II, IV, V and VI using 120 mg of CCl 4 as above. The oral LD 50 of ASBEKS was found to be 4200 mg/kg body weight, which is slightly toxic according to standard scale of toxicity. A significant decrease (p<0.05) was observed in the mean serum ALT, AST and ALP of GROUP IV animals treated for one week when compared to GII. This shows that ASBEKS at a dose of 1.05 g/kg daily for one week may protect hepatocytes against CCl 4 hepatotoxicity. Contrary observation was recorded at higher doses of the extract for one week and two weeks of administration. A significant increase in liver function indices was recorded in GV and GVI as compared to GII in one and two weeks of extract administration, it may therefore speculate the aggravating effects of the extract to CCl 4 hepatotoxicity. The finding of the study reaffirmed the LD 50 established and conclusion. The hepatoprotective and hepatotoxicity effects of the plant could be due to its secondary metabolites contents and it should be used with caution in the management/ treatment of aliments.
Discrete Fourier Transforms of Fractional Processes

Discrete Fourier transforms (dft's) of fractional processes are studied and an exact representation of the dft is given in terms of the component data. The new representation gives the frequency domain form of the model for a fractional process, and is particularly useful in analyzing the asymptotic behavior of the dft and periodogram in the nonstationary case when the memory parameter d >= 1/2. Various asymptotic approximations are suggested. It is shown that smoothed periodogram spectral estimates remain consistent for frequencies away from the origin in the nonstationary case provided the memory parameter d