Miracle-dz/UniFAR-FTUs huggingface dataset:
Interactions of urocanic acid with bovine serum albumin and the influence of pH on binding affinities: a docking simulation study

In the present study, the interactions of urocanic acid (UA) with bovine serum albumins (BSA) at pH 5.0 and 7.4 were investigated by means of docking simulations. The binding modes of trans- and cis-UA to BSA at pH 5.0 and 7.4 were analysed. In addition, the theoretically predicted binding abilities of zwitterion and anion of UA with BSA are in good agreement with the experimental results. Through comparison with the binding patterns, we revealed that the stronger interactions of UA anion with BSA relative to the zwitterion primarily result from: (1) the increased number of hydrogen bonds between UA anion and BSA; (2) the attractive electrostatic interaction between the deprotoned carboxyl group in UA anion and Arg433 in comparison with the repulsion between the imidazole moiety in zwitterion and the same residue in BSA. This provides a rational explanation for the experimental finding that the binding of UA to BSA at pH 7.4 is much stronger than at pH 5.0.
Soil Properties Controlling the Adsorption of Dissolved Organic Carbon to Mineral Soils

Dissolved organic C (DOC) is the most reactive and mobile component of soil C and can be retained within mineral soils by adsorption. We determined the adsorption characteristics for 52 mineral soil samples from 17 temperate and boreal soil profiles, using a modified Langmuir equation. The DOC solution used for batch experiments was derived from the organic horizons of a Spodosol. We analyzed the extent to which soil properties, such as the sum of poorly crystalline Fe and Al (Fe pc + Al pc ), texture, and soil C, are related to DOC adsorption to mineral soils. Sorption characteristics including the maximum adsorption capacity (Q max ), and the null point (np), where adsorption equals desorption, were best explained by Fe pc + Al pc (R 2 = 0.55 and 0.28, respectively). The Al pc exerted a stronger influence than Fe pc on Q max . A simple method for estimating Q max was developed whereby the change in pOH after treatment with NaF is well correlated to Fe pc + Al pc (R 2 = 0.71, P < 0.0001) and Q max (R 2 = 0.50, P < 0.0001). The influence of clay content on Q max was of secondary importance and was largely masked by the dominant influence of Fe pc + Al pc . Soil C did not have any influence on Q max , but a slight negative influence on np. The B horizons of Spodosols and volcanic soils had the greatest Q max , while large levels of soil C in Spodosols produced a high desorption potential. Results from this study emphasize the importance of considering the adsorption potential in conjunction with the desorption potential for better prediction of changes to the size of mineral soil C pools and DOC export to aquatic systems.
Importance of Dataspace Embeddings when Evaluating Text Clustering Methods

Fair evaluation of text clustering methods needs to clarify the relations between 1)pre-processing, resulting in raw term occurrence vectors, 2)data transformation, and 3)method in the strict sense. We have tried to empirically compare a dozen well-known methods and variants in a protocol crossing three contrasted open-access corpora in a few tens transformed dataspaces. We compared the resulting clusterings to their supposed "ground-truth" classes by means of four usual indices. The results show both a confirmation of well-established implicit combinations, and good performances of unexpected ones, mostly in spectral or kernel dataspaces. The rich material resulting from these some 600 runs includes a wealth of intriguing facts, which needs further research on the specificities of text corpora in relation to methods and dataspaces.
Revisiting the School-Based Management Recent Studies

This paper aims to review the School-Based Management in recent studies. As the research method, the researcher follows the systematic procedures for literature review articles such as collecting data, reviewing, categorizing, and presentation. This paper answers the three questions: (A) definition of SBM, (B) factors considered to implement SBM, and (C) the roles of practitioners. Data is based mainly on secondary data, published papers in international journals in particular. In the findings, the researcher presents a certain definition of SBM defined by prior researchers, authority sharing, facility and infrastructure management, budget management, autonomy, transparency as well as the roles of school players, in-depth and breadth. Eventually, the recommendations are also appointed for further studies to promote the School-Based Management literature.
An Efficient Scheme for Fault Tolerance in Cloud Environment

A DCell network topology is designed to support infrastructure data center, and operations routing, anddecision-making are a challenge for network designers routing the data packet from the source node tothe target node, and selecting the shortest path. In this paper propose a new algorithm to address failures(Node, Link, Rack) The algorithm has three parts, part one: using the routing resolution to address linkfailure, selecting the average number of random paths for the server and selecting the shortest alternativepath (time), delay, and throughput. To find out the adjacent nodes we use point to point. Part two:Handling Node Failure by finding the shortest two paths (disjoint). After reverting to the previous node,routing, checking and jumping to the alternate path protocol. Part Three: Addressing Rack Failure analternative path is chosen for the same node level from the failed Rack1 to another Rack2 shortest path.When comparing the proposed algorithm with the algorithms used, it has excelled (transmissionefficiency, high throughput, less time, less delay, bandwidth 100Mbps, fault tolerance).
Mercury in Hair of Mammoth and Other Prehistorical Mammals as a Proxy of Hg Level in the Environment Associated with Climate Changes

The paper presents the first results of Hg determination in the hair of prehistorical animals (woolly mammoth, steppe bison, and woolly rhino). Hair of prehistorical mammals can be used as an archive that preserves changes of environmental pollution at the paleoscale. The aim of our study was to assess the levels of Hg exposure of ancient animals and to understand whether Hg concentration in hair could be used as a proxy indicating changes of mercury levels in the environment following global climate changes. We assessed changes of Hg exposure recorded in hairs of seven specimens of mammoth fauna mammals that inhabited the Yakutia region in the period from 45 to 10 ka yr BP. Hg concentrations in hair varied from 0.017 to 0.177 µg/g; the lowest Hg concentration were determined in older specimens (45–33 kyr yr BP). The two highest concentrations belonged sample from the Last Glacial Maximum and the Karginian interstadial (57–24 kyr BP) periods. Our hypothesis is the increase of Hg concentrations in hair reflecting environmental Hg level might be forced by high dust load in cold periods and thawing permafrost in warm climatic periods. Long-term variations of Hg level recovered from Ice Age animals’ hair correlate with Hg profiles of concentration and deposition reconstructed from the Antarctica ice core.
Lower urinary tract symptoms in rheumatoid arthritis and spondyloarthritis male patients versus controls

Abstract Background. We aimed to evaluate the severity of lower urinary tract symptoms (LUTS) in rheumatoid arthritis (RA) and spondyloarthritis (SpA) male patient versus control, then to determine the relation of LUTS with rheumatic diseases (RD) characteristics and with erectile dysfunction (ED). Methods. We conducted a cross-sectional case control study including 50 men with RA or SpA and 50 healthy controls. LUTS were evaluated by the International Prostate Symptom Score (IPSS). LUTS bother was evaluated by the Quality of life (QoL) score, which ranges from 0 to 6. LUTS bother was considered if QoL score exceeded 2. Moreover, erectile function was assessed by the International Index of Erectile Function-5 (IIEF5) (ED if score < 21). Results. LUTS were significantly more severe in RD patients than controls (p = 0.03). However, there was no difference between the two groups in LUTS bother (QoL) (p = 0.2). Comparing RA and SpA showed no difference as to the severity of LUTS or effect of bother on QoL (p = 0.13, p = 0.5). The prevalence of ED in RD patients was not significantly higher than controls (80% versus 70%; p = 0.2). There were also no differences either between RA and SpA groups (p = 0.74). The severity of LUTS for patients with RD (RA and SpA) was significantly associated with age (p = 0.001), age at disease onset (p = 0.002) and ED (p = 0.008). Conclusion. According to our study, men with RD seem to be exposed to more severe LUTS than controls. Also, the severity of LUTS was associated with ED, age of patients and the age of disease onset.
Novel Schemes for Cauchy-Riemann System of Equations with Cauchy Conditions

This communication deals with the analytical solutions of Cauchy problem for Cauchy-Riemann system of equations which is basically unstable according to Hadamard but its solution exists if its initial data is analytic. Here, we used the Vectorial Adomian Decomposition (VAD) method, Vectorial Variational Iteration (VVI) method, and Vectorial Modi ed Picard's Method (VMP) method to get the convergent series solution. These suggested schemes give analytical approximation in an in nite series form without using discretization. These methods are e ectual and reliable which is demonstrated through six model problems having variety of source terms and analytic initial data.
The microwave spectrum of the methoxy radical CH3O

The pure rotational spectrum of the methoxy radical in the 2E ground electronic state was observed in the mm‐wave region using a source‐frequency modulation microwave spectrometer with a 1 m long free space absorption cell. The methoxy radical was produced in the cell by the reaction of methanol with 2450 MHz discharge products of CF4. Each rotational transition was found to split into fine and hyperfine components. A Hamiltonian was derived which includes the spin‐orbit interaction, the vibronic Coriolis interaction, the (2,−1) and (2,2) rovibronic interactions, and the hyperfine interaction. It was successfully applied to explain the detailed feature of the observed spectrum and to derive molecular constants therefrom. The hyperfine coupling constants of the proton nuclei were determined for the first time. When the C–H bond length was assumed to be 1.0937 A, the observed A and B rotational constants led to the C–O bond length of 1.376 A, considerably shorter than the values hitherto accepted.
Role of Reductants in the Enhanced Desorption and Transformation of Chloroaliphatic Compounds by Modified Fenton's Reactions

The mechanism for enhanced desorption of chloroaliphatic compounds from a silty loam soil by modified Fenton's reagent was investigated using a series of probe compounds of varying hydrophobicities. Hexachloroethane, which has negligible reactivity with hydroxyl radicals, was transformed more rapidly in modified Fenton's reactions (≥0.3 M hydrogen peroxide) than it was lost by gas-purge desorption, suggesting the existence of a non-hydroxyl radical mechanism. The addition of excess 2-propanol to scavenge hydroxyl radicals slowed, but did not stop, the desorption and degradation of hexachloroethane. In the presence of the reductant scavenger chloroform, hexachloroethane did not desorb and was not degraded, indicating that a reductive pathway in vigorous Fenton-like reactions is responsible for enhanced contaminant desorption. Fenton-like degradation of hexachloroethane yielded the reduced product pentachloroethane, confirming the presence of a reductive mechanism. In the presence of excess 2-propanol, tolu.
Novel Hybrid MIMO Detector for Spatial Multiplexed MIMO System

The need of data transmission has recently increased dramatically and the promising MIMO technology has been employed to preserve reliability. It can achieve exceptionally enhanced spectral proficiencies by adopting several antennas both at the source and the receiver. However, complexity of several detection schemes escalates because of tremendous increasing of customers and antennas. This paper proposes novel hybrid MIMO detection (NHMD) method to compromise the complexity and the hardware design challenges. The key objective is to develop a less-complex hybrid detection system to enhance hardware execution suitability without negotiating the performance of the bit error rate. The proposed NHMD method combines conventional linear detectors such as zero-force (ZF) and minimum mean square error (MMSE) with the K-best detector for quality enhancement. It introduces an optimal differential evolution (ODE) algorithm that selects detector using multiple constraints. Moreover, this method uses parallelism process to reduce the number of arithmetic logics. The proposed NHMD method has been done for different antenna configurations (2×2, 4×4) and implemented on Xilinx tool with different FPGA families. The simulation results confirm that NHMD method consumes less hardware’s, power and higher throughput without affecting BER performance.
3D side-scattering imaging flow cytometer and convolutional neural network for label-free cell analysis

Compared with conventional fluorescence biomarker labeling, the classification of cell types based on their stain-free morphological characteristics enables the discovery of a new biological insight and simplifies the traditional cell analysis workflow. Most artificial intelligence aided image-based cell analysis methods primarily use transmitted bright-field images or holographic images. Here, we present the first study of the convolutional neural network (CNN) analysis on three-dimensional (3D) side-scattering cell images out of a unique 3D imaging flow cytometer study. Human cancer cell lines and leukocyte classifications were performed to investigate the information carried by the spatial distribution of side-scattering imaging of single cells. We achieved a balanced accuracy of 98.8% for cancer cell line classification and 92.3% for leukocyte classification. The results demonstrate that the side-scattering signals can not only produce general information about cell granularity following the common belief but also carry rich information about the properties and functions of cells, which can be uncovered by the availability of a side-scattering imaging flow cytometer and the application of CNN. Thereby, we have opened up a new avenue for cell phenotype analysis in biomedical and clinical research.
Hydrogen elimination as a key step for the formation of polymerlike hydrocarbon films

Recent experiments using H and CH3 radical beams as a model system for plasma deposition of C:H films revealed that CH3 adsorption at dangling bonds at the film surface is an important step for film formation. CH3 adsorption onto dangling bonds, which are created by hydrogen abstraction from incoming H, implies a net incorporation of two hydrogen atoms per carbon atom during steady state growth, although the H/C ratio of the deposited layers is only ∼1. Therefore, a reaction step of hydrogen elimination is essential to describe C:H film formation consistently. This hydrogen elimination is investigated by exposing polymerlike C:H films to quantified radical beams of CH3 and H. The resulting C:H film formation is monitored by in situ ellipsometry and infrared reflection spectroscopy. Based on experimental data, a model is developed to describe hydrogen elimination via a two step process: (i) first abstraction of surface bonded hydrogen from incoming H, followed by (ii) the recombination of dangling bonds vi.
The Relationship between Nordic Hamstring Test and Isokinetic Dynamometry in Football and Track and Field Student Athletes: a Cross-Sectional Study

LEVEL OF EVIDENCE: 3B SUMMARY Background. Nordic hamstring test is a field-based test to estimate the hamstrings’ injury risk. The aim of this study was to investigate the relationship between Nordic hamstring test and isokinetic dynamometry in football and track and field student athletes. Methods. Knee flexor eccentric peak torque of hamstring, optimum length, and muscle balance indices were obtained in two seated and lying positions in 22 footballs and 22 track and field student athletes. The Nordic break point angle was also measured. Results. There were significant correlations between isokinetic dynamometry indices and breakpoint angles (P=0.000). Best predictors of break point angle were muscle balance indices and eccentric hamstring peak torques in lying position (P < 0.05). Conclusions. It seems that Nordic hamstring test is related to isokinetic dynamometry. This relationship is also dependent on the hip joint positioning. These findings may have implications in the assessment of athletic performance.
The influence of distributive justice on the organizational citizenship behavior in Libyan Telecommunication Industry

This paper investigates the linkage between distributive justice and organizational citizenship behaviour in Libyan telecommunication industry. The cross-sectional approach is used to tests the impact of the distributive justice on the organizational citizenship behaviour. 377 respondents’ managers in the middle management level and employees in the operational management level from different telecommunication companies are selected. The result of this study confirms a significant and positive impact of distributive justice on the organizational citizenship behaviour. It recommends that Libyan telecommunication companies should promote the organizational citizenship behaviour at workplace by providing training to employees on stress management, positive attitude and time management.
Using Electromyography to Assess Postural Load in Dentistry: A Literature Review

This study sought to perform a review of the literature on the use of electromyography to assess postural load in dental work. The literature used in this review was obtained from databases and only articles published published between 1991 and 2019 were considered. The main keywords were “electromyography,” "working posture”, “ergonomics” and “muscle activity”. Each abstract was read to determine whether the information in the article included discussions on the use of electromyography to assess postural load in dental work (n=27). It was found that electromyography is beneficial to assess the influence of different devices used in dental work, however, as it has limitations, researchers must be aware of them to seek alternatives to circumvent them.
Analysis on Cognitive Behaviors and Prevention of Human Errors of Coalmine Hoist Drivers

Human errors are commonplace among hoist drivers in the hoisting task of coalmines. To reduce these errors and prevent accidents, it is necessary to identify the features of cognitive behaviors and main cognitive errors of the hoist drivers. This paper analyzes the accident cases and operating flow of coalmine hoist, and establishes a cognitive process model of coalmine hoist drivers. Further, the cognitive behaviors and functions of the drivers were analyzed stage by stage, revealing the distributions of their main cognitive behaviors and functions. It is learned that most coalmine hoist accidents concentrate in two stages: lifting, and operation monitoring. The operating processes in the two stages were further deliberated. The specific operations were extracted as the influencing factors of human errors, and the importance of each index was calculated through analytic hierarchy process (AHP). The research results provide a theoretical reference for identifying the key factors affecting the human errors of the operations by coalmine hoist drivers, and shed new light on how to prevent such errors.
An Efficient Outsourced Oblivious Transfer Extension Protocol and Its Applications

Oblivious transfer (OT) is a cryptographic primitive originally used to transfer a collection of messages from the sender to the receiver in an oblivious manner. OT extension protocol reduces expensive asymmetric operations by running a small number of OT instances first and then cheap symmetric operations. While most earlier works discussed security model or communication and computation complexity of OT in general case, we focus on concrete application scenarios, especially where the sender in the OT protocol is a database with less computation and limited interaction capability. In this paper, we propose a generic outsourced OT extension protocol ( O Tex ) that outsources all the asymmetric operations of the sender to a semihonest server so as to adapt to specific scenarios above. We give O Tex a standard security definition, and the proposed protocol is proven secure in the semihonest model. In O Tex , the sender works on the fly and performs only symmetric operations locally. Whatever the number of rounds OT to be executed and the length of messages in OT to be sent, our protocol realizes optimal complexity. Besides, O Tex can be used to construct high-level protocols, such as private membership test (PMT) and private set intersection (PSI). We believe our O Tex construction may be a building block in other applications as well.
Examining the effects of chieftaincy disputes in Funsi traditional area in the Upper West of Ghana

The study examines the effects of the Chieftaincy Dispute in the Funsi structured and key informant interviews, and content analysis. Inadequate documentation on succession route, noncompliance with tradition, mistrust, poverty, and politicization fueled the dispute. The socio-cultural effects of the dispute include injuries and deaths, trauma, collapse of social ties, and difficulty to access social services. Moreover, dwindling food production, price hikes in goods, low sales, difficulty in accessing transport to travel, soaring unemployment, loss of labour force, and increase of middlemen in business were the economic and political effects. Lastly, supernatural arbitration, the use of legal system, and dialogue and capacity building were the nonviolent conflict resolution mechanisms whilst the use of security forces was a violent mechanism. The study found that non-violent mechanisms were more appropriate for resolving the dispute in the Funsi Traditional area. The study recommends that the Wa East District Assembly, Upper West Regional House of Chiefs and the Ministry of Chieftaincy should synchronize and codify the customary laws with the constitutional and legal instruments on the succession route to the Funsi Chieftaincy Title.
The relationship between collectivism and green product purchase intention: The role of attitude, subjective norms, and willingness to pay a premium.

Environmental degradation caused by the unsustainable consumption behavior of consumers puts a strain on the environment and is hindering sustainable development. One approach is to reduce or change consumption from traditional products to green products to avoid this negative impact and encourage a more sustainable economy. This paper examines the impact of culture over the consumer’s green purchase intention in Jordan by examining the collectivism cultural dimension to the Jordanian consumer and applying attitudes towards green products, subjective norms towards green products and willingness to pay a premium. A conceptual model is developed in this research by linking collectivism with green product purchase intention and applying the effect of attitude toward green products, subjective norms towards green products and WPP to see if these mediators affect the direct relation between collectivism and green product purchase intention. By contacting data from 143 consumers, the result of this study revealed that collectivism plays a significant role in enhancing green product purchase intention and that such a relationship is mediated by attitude toward green products, subjective norms towards green products, and willingness to pay premium.