Miracle-dz/UniFAR-FTUs huggingface dataset:
Water-stress Screening in Blackgram [Vigna mungo (L.) Hepper] Genotypes using Polyethylene Glycol 6000 at Seedling Growth Stage

Background: Blackgram is one of the important pulse crops belongs to the Papilionaceae family. Seed germination and seedling growth are a very important step in the survival of a plant. Water stress is one of the important factors affects seedling growth. Methods: An experiment was conducted to study the effect of water stress on seedling growth in twenty-one blackgram [Vigna mungo (L.) Hepper] genotypes at the pot culture yard of Annamalai University during March 2018. The water stress was created by using Polyethylene Glycol (6000 MW) in different concentrations (0%, 10% and 20%). Different phenotypic characters were recorded such as shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight and root dry weight at two different levels of treatment and control. The experiment was laid in a completely randomized design with two replications. Result: The combined analysis of variance revealed significant differences (p less than 0.001) among genotypes, treatments and genotypes × treatments interaction. The highest stress tolerance index (STI) was recorded by the genotype ADT-5. Based on clustering and ranking, the genotypes ADT-5, KGB-28, RU-16-9, VBG-10010 and VBG-12062 were classified as drought-tolerant. Overall, pot culture screening of 21 blackgram genotypes for drought tolerance at seedling stage using various concentrations of PEG 6000 resulted in the identification of drought-tolerant genotypes, where ADT-5 showed the highest tolerance followed by KGB-28 and RU-16-9.
Evaluation of Nutrient Content of Vermicompost Made from Different Substrates at Mechara Agricultural Research Center on Station, West Hararghe Zone, Oromia, Ethiopia

The study was conducted at Mechara Agricultural Research Centre during 2016–2018 to evaluate nutrient content of vermicompost made from different substrates. The treatments were sorghum straw, maize straw, teff straw, haricot bean straw, grass straw and mixture of all straws. A red worm (Eisenia fetida) was selected to digest the substrates. The substrates was chopped and added to the worm bin volume calculated using spherical frustum formula 1/6πh (3a2+3b2+h2 in a ration 2.5:1 ration of cattle manure to crop residue in weight basis. Water was sprayed to maintain optimum moisture for worms as it needed. The vermi composting process was started by releasing 100 worms in to the substrates. Matured composite vermicompost samples were prepared and collected for laboratory analysis. The laboratory result showed that, the pH and EC values of all type of vermicompost are found in suitable range for survival of earthworms and also for plant growth. Data with regards to %OC, C: N ratio and CEC of vermicompost made from all material is excellent and promise for improvement of soil properties. Relatively the highest (4.26%) and lowest (3.04%) TN content was recorded from vermicompost made from grasses and haricot bean substrates respectively. The highest value of available P and K was also registered from vermicompost prepared from all materials. Even if the values of recorded exchangeable Ca, Mg, K and extractable micro nutrients were different, the vermicompost obtained from all substrates were rich in exchangeable cations and micro nutrients. Therefore, the nutrient content of vermicompost prepared from all substrates showed the highest values for all macro and micro plant nutrients. Thus, the vermicompost made from all materials could correct the plant nutrient imbalance and could be used for vermicompost preparation based on the accessibility of materials. Also utilizing the vermicompost for crop production and enhancing soil fertility.
The Effects of Personal, Environmental, and Genetic Factors on Epidemic of Coronavirus Disease-19: A Review of the Current Literature

Coronavirus disease (COVID)-19 is a viral disease that broke out in late 2019 in Wuhan, China. The World Health Organization has been forced to declare a public health emergency due to the global outbreak of COVID-19. The concerns about the COVID-19 disease are the rapid increase in the number of patients as well as the number of deaths compared with severe acute respiratory syndrome disease. Given that there is a remarkable variability amongst people for COVID-19 infection, there really is the possibility that there will be genetic and environmental effects, it is a need for their role to be fully clarified as soon as possible. Numerous studies have been performed on the on the stability of COVID-19 virus in different environmental conditions including temperature and humidity. In this study, we aimed to discuss in detail the benefits and effects of these factors on COVID-19. Some studies have confirmed the relationship between environmental conditions and disease transmission and others have rejected. Furthermore, not all COVID-19 exposed people are infected and not all infected patients develop severe respiratory complications. It is quite likely that these disparities are genetically mediated, in part. People who may be occupationally exposed to this virus may be due to different reasons, including lack of health, lack of knowledge and attitude, and working conditions. Reducing human-to-human contact by increasing the level of public health in the community as well as maintaining social distance plays a key role in prevention of COVID-19 disease. However, many aspects of COVID-19 are still unknown and require further and extensive studies.
The Velocity of Ascending Air Bubbles in Aqueous Solutions of a Surface Active Substance and the Life of the Bubble on the Same Solution

1) The velocity of an air bubble ascending in water is remarkably retarded by the addition of a minute amount of sodium dodecyl sulfate (SDS) or isoamyl alcohol. With an air bubble with a radius ranging from 0.03 to 0.07 cm. , the decrease in velocity is perceptible even in a 10−6 molar SDS solution, while it tends to a limiting value in 10−3 and 10−4 molar SDS solutions, where the rising velocity is about half as large as that in pure water. 2) To elucidate this retardation, the static properties of the solution, such as surface tension, density and compressibility, and the dynamic properties, such as viscosity and the change in surface tension with time, have been measured. However, no difference could be found in these properties between pure water and a 10−5 molar SDS solution to account for the retardation phenomena. 3) The rising velocity of a bubble considered to be a rigid sphere calculated by using an empirical formula fails to explain the results, since the formula does not fit our experimental c.
Tracing Possible Structural Asymmetry of Silica Gel Used for Precoating Thin-Layer Chromatography Plates

We have previously described unexpected two-dimensionality in the thin-layer chromatographic separation of pairs of enantiomers of chiral 2-arylpropionic acids (2-APA) by one-dimensional development on a chiral stationary phase prepared by impregnating silica gel layers with l-arginine. The two-dimensionality of this separation was because in planar chromatography all analytes undergo two-dimensional effective diffusion and thus - theoretically at least - can migrate in two mutually perpendicular directions, i.e. in the direction of the mobile phase flow and in a direction perpendicular to this. Demonstration (and quantification) of this striking behavior was possible by use of densitometric detection. Migration of analytes in a direction perpendicular to that of the mobile-phase certainly is not commonplace in thin-layer chromatography and, as far as we are aware, the example described in our previous paper was the first of its kind reported. It was apparently induced by the chirality of the analytes and the stationary phase. In the work discussed in this paper we demonstrated another example of deviation from the vertical of the migration tracks of the same analytes, optically pure S-(+)-ibuprofen and S-(+)-naproxen, when chromatographed on unmodified commercial precoated silica gel plates. Keeping in mind that (i) such deviations can occur only with a chiral analyte developed in an asymmetric chromatographic system, and that (ii) silicon dioxide (chemically identical with chromatographic silica gel) can crystallize as quartz (i.e. as rock crystal) in two asymmetric - left-handed and right-handed - forms, we assumed the working hypothesis that chromatographic silica gel layers can also seem to have an asymmetric microcrystalline structure responsible for deviation from the vertical of the migration tracks of chiral analytes. To verify our hypothesis we acquired circular dichroism (CD) spectra and UV absorption spectra of samples of the silica gel used for coating commercial TLC plates. The results obtained from these measurements provide convincing evidence of the correctness of our hypothesis and it seems most likely that the commercial silica gel layers are characterized by the crystalline asymmetry of the silicon dioxide particles.
Epidemio-Clinical Aspects of Closed Forearm Fractures and Functional Results after Osteosynthesis by Plate

Isolated fracture of a bone or both bones of the forearm always involves the functional prognosis of the limb. The aim of this study was to describe the epidemioclinical aspects and to analyze the functional results of fractures of the forearm having benefited from an osteosynthesis at 6 months of follow-up. This is a retrospective, descriptive and analytical study of patients undergoing an osteosynthesis by a screwed plate of a fracture of one or both bones of the forearm in the Orthopedic and Trauma Surgery Service of the University Hospital Center of Joseph RavoahangyAndrianavalona in 2015 and 2016. Thirty-six cases were observed. Men were the most affected (67%). The age group between 16 and 30 years old (33.3%) was the most represented. Sports accidents and road traffic accidents were the most represented etiologies (33.34% each). The non-dominant side was the most affected. It was mainly an isolated fracture of the radius (69.46%). The type of line most represented was the transverse line (53%) sitting at third middle in the majority of cases. All fractures have been consolidated. Forty percents of the patients followed more than 20 functional rehabilitation sessions. The functional results were satisfactory in 66.67%. Osteosynthesis by screwed plate allowed normal consolidation, but functional outcomes also depend above all on the type of fracture and functional rehabilitation.
A Shock Tube Study of the Ignition of n-Heptane, n-Decane, n-Dodecane, and n-Tetradecane at Elevated Pressures

The ignition of n-heptane, n-decane, n-dodecane, and n-tetradecane has been investigated in a heated shock tube. n-Alkane/air mixtures at Φ = 0.25, 0.5, and 1.0 were studied in reflected shock experiments at 9−58 atm and 786−1396 K. Ignition times were measured using a combination of endwall electronically excited OH emission and sidewall pressure measurements. The measured ignition times are compared to previous data, where available, with good agreement and to several kinetic modeling predictions. The current data and the combination of the current data with previous shock tube and rapid compression machine measurements show that any differences in reactivity for C7 and larger n-alkanes is slight, within the experimental uncertainties, for n-alkane/air mixtures with common carbon content at a large range of temperatures (650−1400 K) and elevated pressures. To our knowledge, the n-tetradecane measurements presented here are the first ignition measurements to be reported for this compound. The complete da.
The Infrared Characterization and Mechanism of Oxygen Adsorption in Coal

ABSTRACT The remarkable differences between the infrared spectra of oxygen adsorption and nitrogen desorption in coal have been experimentally and theoretically investigated. Density functional theory calculations were performed to better explain the mechanism of oxygen adsorption using six different molecular models of coal. In addition, the remarkable differences of infrared spectra between oxygen adsorption and nitrogen desorption was defined as the index V, which was used to classify the spontaneous combustion tendency of coal. The experimental data indicated that the spectra in the 4000–2000 cm−1 and 1250–1050 cm−1 regions exhibited significant changes. These results suggest that the mechanism of oxygen adsorption is the alteration and transfer of charge density around the activated sites, which leads to the observed changes of the infrared spectra. The V, which is related to the alteration of spectral intensity, is found to decrease with the increase of adiabatic oxidation time and the relative spontaneous combustion period of coal. This observation solidifies the connection between sample spectral intensity and oxygen chemisorption. These data suggest that the hydroxy in hydroxy and carboxyl groups on the surface of coal particles is the site of oxygen chemisorption, and the V can be used to rapidly and accurately categorize the spontaneous combustion tendency of coal.
Microwave Assisted Extraction of Essential Oil From Cymbopogon Flexuosus (Steud.) Wats.: A Parametric and Comparative Study

Microwave assisted extraction was employed for efficient and rapid extraction of essential oil from leaves of Cymbopogon flexuosus (Steud.) Wats. (lemongrass). Parametric study was carried out to examine the effect of various parameters like solid loading, volume of water, rehydration time, extraction time, and power on yield and composition of essential oil. Hydrodistillation was performed for comparative analysis. Kinetic modelling of experimental data was attempted. Microscopic analysis of treated and untreated leaves was performed to observe the surface morphology. The results obtained can further be utilized for optimization of parameters as well as designing the process.
The Impact of Socioeconomic Status on Preference for Sustainable Luxury Brands

Sustainability has become an increasing concern for many brands and companies and an increasing number of luxury brands now engage in sustainability practices. The present research examines the factors influencing the effectiveness of embedding sustainability in luxury brands. Specifically, this paper investigates how childhood socioeconomic status (SES) moderates consumer preferences for sustainable (vs. regular non-sustainable) luxury brands. Across three experimental studies with different product categories and luxury brands, this paper finds that preferences for regular (vs. sustainable) luxury goods are stronger in people with a relatively high (vs. low) childhood SES (Studies 1-3). Notably, these preference patterns are driven by differences in the perceived quality of the brand among consumers with low versus high childhood SES (Study 2). However, these divergent patterns are attenuated when consumers experience high perceived environmental threat from the COVID-19 pandemic (Study 3). Taken together, these findings provide several theoretical and managerial implications.
STOCHASTICITY MODELING AND ANALYSIS OF ELASTIC MODULUS OF RANDOMLY ORIENTED STRANDS

Randomly oriented strands (ROS) exhibit multiscale inhomogeneous and significant stochastic variations even in elastic properties because of their complex internal geometries. To quantify the variations and expand the applicability of ROS in industrial fields, a laminate analogy analytical model was developed in combination with Monte Carlo simulation-based statistical analysis to compute the mean and variance of the elastic modulus of ROS. Two semi-empirical fitting equations were formulated to calculate the mean and variance of the elastic modulus, thus reducing the need for onerous experiments. The effects of strand morphology on the stochasticity of the elastic properties are discussed in detail for the first time. The results of the analytical model showed significant applicability and good agreement with the experimental data under various conditions, and the formulated equations were able to provide satisfactory values for the mean and variance of the elastic modulus with different strand properties and strand/specimen morphologies. The role of the strand morphology (thickness, width, and length) was analyzed from a statistical perspective and the thickness ratio of the strand to the specimen was found to be the most effective factor for reducing the stochasticity of ROS.
Compost Impacts on Sodicity and Salinity In a Sandy Loam Turf Grass Soil

Compost application to turf grass may influence soil sodicity and salinity and eventually the establishment and growth of turf grass. The objectives of this study were to determine effects of compost source and application rate on soil sodicity and salinity during 29 months after a one-time application to Saint Augustine grass and Bermuda grass turf grown on a sandy loam soil. Extractable soil Na, electrical conductivity (EC), and pH did not differ among compost sources having variable Na and nutrient levels. However, compost application decreased soil Na, EC, and pH compared to unamended soil likely due to high applications of Ca, Mg, and K, which occupied cation-exchange sites on soil particles, minimizing adsorption of Na and enhancing Na leaching losses during precipitation events. Furthermore, high application of composts increased soil dissolved organic C (DOC) levels, which may have coated soil particles and limited adsorption of Na. Complexation of extractable cations with DOC, followed by potential leaching of DOC-associated cations, tended to decrease soil EC. Thus, composts may actually serve to alleviate soil sodicity and salinity problems. Seasonal variation of extractable soil Na and EC were related to growth stages of turf grass, which influenced DOC levels, and precipitation patterns, which influenced vertical movement of DOC-associated cations.
Effect of Job Characteristics on Job Performance among Employees in the General TV Channels

This study aimed to describe the level of job characteristics and job performance and to examine the relationship between job characteristics and job performance among employees in general TV channels in Syria. Data were collected from 158 members and the findings indicate that employees of TV channel have assessed that their work is designed with the motivational approach by applying the five dimensions of work which are: skill variety, task identity, task significance, autonomy and feedback. Also the findings indicated that there is a significant relationship between all job dimension and job performance but with a different levels.
A study of students’ perceptions of parental influence on students’ musical instrument learning in Beijing, China

ABSTRACT With particular reference to Beijing, China, this study adopts mixed-method research to focus on Grades Seven to Nine students’ perceptions of how parental cultural capital and support influence their musical instrument learning. Framed by Bourdieu’s theory of cultural capital, two research questions are addressed in this article: (1) How do students perceive the impact of parental support on their instrument learning? (2) What roles do parental capital and support play in facilitating students’ cultivation of musical knowledge? Based on 1672 completed questionnaires and 15 individual interviews from musical instrument learners, this study found that parental cultural capital enhanced the frequency and strategies of the parental support offered for students’ instrument learning, and may in turn enhance students’ motivation for instrument learning; and that parental cultural capital predicted their financial support for students’ instrumental learning. Most students in the study perceived their parents as providing support and strict parental control as facilitating their instrument learning. The study lends the support to Bourdieu’s theory on the intergenerational transmission of cultural capital, in terms of musical instrument learning. This study also implies that collaboration with musical instrument tutors could benefit parents who lack musical knowledge to support their children’s learning.
Anticoagulation therapy using unfractionated heparin at a therapeutic dose for coronavirus disease 2019 patients with severe pneumonia: a retrospective historical control study

Patients with severe coronavirus disease 2019 (COVID‐19) pneumonia often have complications of coagulopathy and thrombotic phenomena, which lead to high mortality. Whether administering systematic anticoagulant therapy is beneficial remains unclear. We report our experience using systemic anticoagulation with unfractionated heparin to treat severe COVID‐19.
Sorption of imidacloprid on soil clay mineral and organic components

Soil clay mineral and organic components have been shown to be responsible for sorption of many pesticides. This study assessed the influence of the different components of the clay fraction of five soils and model sorbents (montmorillonite, Fe oxide, and humic acid) and their binary and ternary associations on sorption of the insecticide imidacloprid (1-[(6-chloro -3-pyridinyl)-methyl ]-N-nitro-2-imidazolidinimine). Sorption was very high on a clay fraction containing a high content of low-laminar-charge montmorillonite and relatively high organic C content When organic matter of the soil days was reduced by H 2 O 2 , sorption decreased; however, the sorption coefficient based on organic C (K oc ) increased. The increase in K oc was greater on clays whose surface areas substantially increased after H 2 O 2 treatment. This indicates a contribution of the surfaces of mineral components of the soil clay to sorption of imidacloprid. Imidacloprid sorbed on both montmorillonite and humic acid, whereas sorption on Fe oxide was very low. The sorption distribution coefficient, K d , on montmorillonite increased from 15 to 180 when pH was decreased from 3.5 to 1.0, suggesting protonation of the -NH group of the imidazol ring. Sorption on binary and ternary associations of these model sorbents indicated that organic matter is the single most important component affecting sorption of imidacloprid, although there is some contribution of the mineral surfaces.
Thyroid Stimulating Hormone Receptor Transcripts in Correlation with Clinical Parameters in Thyroid Carcinoma Patients

BACKGROUND: Differentiated thyroid carcinomas (DTC) preserve expression of thyroid stimulating hormone receptor (TSHR). AIM: The aim of our study was to evaluate the expression of mRNA-TSHR in peripheral blood of DTC patients, then to correlate the expression with clinical features: Serum thyroglobulin (sTg) value, initial staging and findings from the whole body scan (WBS), neck ultrasound (US), and total received dose of radioiodine therapy. MATERIALS AND METHODS: Forty patients were divided into three groups according to the treatment response: Patients with incomplete structural response (TCs), incomplete biochemical response (TCb), and excellent responders (TCr). Total RNA was isolated from peripheral blood and used for two-step reverse transcriptase-PCR with appropriate primers. Relative quantification using the ΔCt and 2–ΔΔCt and method was applied. sTg levels were evaluated with chemiluminescent assay. The statistical analysis was performed with Spearman Rank Order Correlation. RESULTS: We found that TCs patients expressed mRNA-TSHR by a 5.37-fold higher level than TCr patients, TCb patients expressed TSHR by an 8.88-fold higher level than TCr patients. A significant negative correlation was detected between sTg and ΔCt (CtTSHR - CtGAPDH) value (R = −0.475; p < 0.05), and between WBS/US findings and ΔCt (R= −0.321; p < 0.05). CONCLUSION: Our data revealed higher expression of mRNA-TSHR in peripheral blood of TCs and TCb compared to TCr patients and analysis revealed a significant correlation between mRNA-TSHR and sTg and US/WBS findings. Further studies with larger number of subjects and absolute quantification are needed for understanding the real meaning of mRNA-TSHR as a biomarker in DTC.