Miracle-dz/UniFAR-FTUs huggingface dataset:
Linear Dynamic Viscoelasticity of Dual Cross-Link Poly(Vinyl Alcohol) Hydrogel with Determined Borate Ion Concentration

We investigated the linear dynamic viscoelasticity of dual cross-link (DC) poly(vinyl alcohol) (PVA) (DC-PVA) hydrogels with permanent and transient cross-links. The concentrations of incorporated borate ions to form transient cross-links in the DC-PVA hydrogels (CBIN) were determined by the azomethine-H method. The dynamic viscoelasticity of the DC-PVA hydrogel cannot be described by a simple sum of the dynamic viscoelasticity of the PVA gel with the same permanent cross-link concentration and the PVA aqueous solution with the same borate ion concentration (CB = CBIN) as in the DC-PVA gel. The DC-PVA hydrogel exhibited a considerably higher relaxation strength, indicating that the introduction of permanent cross-links into temporary networks increases the number of viscoelastic chains with finite relaxation times. In contrast, the relaxation frequency (ωc) (given by the frequency at the maximum of loss modulus) for the DC-PVA hydrogel was slightly lower but comparable to that for a dilute PVA solution with the same CB. This signifies that the relaxation dynamics of the DC-PVA hydrogels is essentially governed by the lifetime of an interchain transient cross-link (di-diol complex of boron). The effect of permanent cross-linking on the relaxation dynamics was observed in the finite broadening of the relaxation-time distribution in the long time region.
Multiscale dynamic mean field (MDMF) model relates resting-state brain dynamics with local cortical excitatory–inhibitory neurotransmitter homeostasis

Abstract Previous computational models have related spontaneous resting-state brain activity with local excitatory–inhibitory balance in neuronal populations. However, how underlying neurotransmitter kinetics associated with E–I balance govern resting-state spontaneous brain dynamics remains unknown. Understanding the mechanisms by virtue of which fluctuations in neurotransmitter concentrations, a hallmark of a variety of clinical conditions, relate to functional brain activity is of critical importance. We propose a multiscale dynamic mean field (MDMF) model—a system of coupled differential equations for capturing the synaptic gating dynamics in excitatory and inhibitory neural populations as a function of neurotransmitter kinetics. Individual brain regions are modeled as population of MDMF and are connected by realistic connection topologies estimated from diffusion tensor imaging data. First, MDMF successfully predicts resting-state functional connectivity. Second, our results show that optimal range of glutamate and GABA neurotransmitter concentrations subserve as the dynamic working point of the brain, that is, the state of heightened metastability observed in empirical blood-oxygen-level-dependent signals. Third, for predictive validity the network measures of segregation (modularity and clustering coefficient) and integration (global efficiency and characteristic path length) from existing healthy and pathological brain network studies could be captured by simulated functional connectivity from an MDMF model.
Self-Determination Theory and Its Relation to Organizations | Oxford Research Encyclopedia of Psychology

Self-determination theory (SDT) is a macro theory of human motivation that utilizes concepts essential for organizational psychology. Among the concepts are types and quality of motivation and basic (i.e., innate and universal) psychological needs. Further, the theory has specified social-environmental factors that affect both the satisfaction versus frustration of the basic psychological needs and the types of motivation. The social-environmental factors concern ways in which colleagues, employees’ immediate supervisors, and their higher-level managers create workplace conditions that are important determinants of the employees’ motivation, performance, and wellness. In addition, SDT highlights individual differences that also influence the degrees of basic need satisfaction and the types of motivation that the employees display. This theoretical framework has gained increasingly attention within the context of work the last 15 years, showcasing the importance of basic psychological needs and type of work motivation in explaining the relation from workplace factors to work behaviors, work attitudes and occupational health.
Structure Homogeneity in CEO Compensation

Structure Homogeneity in CEO Compensation BY Danya Mi April 2021 Committee Chairs: Douglas E. Stevens and Matthew D. DeAngelis Major Academic Unit: School of Accountancy Prior compensation literature documents and investigates trending practices in CEO incentive contracting by exploring the designs of individual contractual components (e.g., performance targets, pay type, etc.) rather than the overall contract structure. Using distance measures based on a comprehensive set of contract elements derived from firms’ proxy statements, I identify factors that are associated with a firm’s CEO compensation structure homogeneity, which describes the degree to which a firm’s CEO compensation structure is similar to industry practice. My study demonstrates that, consistent with the predictions under optimal contracting theory, a firm adopts a CEO compensation contract that is more similar to industry practice when the firm shares more common risks with its industry or when its owners share more common interests with its industry peers. However, the board of directors’ ability to communicate and obtain inside information, as well as the use of compensation consultants, also contributes to compensation homogeneity unexplained by general CEO/firm specific characteristics. Lastly, I find evidence that CEO compensation homogeneity has a negative association with shareholders’ wealth in the subsequent periods.
A nationwide study on the knowledge, awareness, and practices towards COVID-19 in Saudi Arabia

Purpose: To investigate public knowledge, awareness and practice regarding COVID-19 in Saudi Arabia.Methods: A cross-sectional descriptive study was conducted, with a 16-item self-administered questionnaire. Data was collected using social media as the platform a day after the lockdown commenced in Saudi Arabia and data collection lasted from March 25 to April 25, 2020. Chi-square test was performed to determine the association between the variables.Results: The results showed that 96 % (n = 1505) of adults were aware of the clinical symptoms of COVID-19 and 57.9 % (n = 908) correctly identified that a stuffy nose and sneezing were less common in persons infected with the virus. A majority (95.4 %, n = 1495) agreed that there was no established therapeutic treatment for COVID-19. Further, 91.7 % (n = 1437) agreed that the virus could spread via respiratory droplets and only 46.2 % (n = 724) acknowledged that wearing face mask helped prevent transmission. The results also showed that 83.2 % (n = 1299) of the participants thought that visiting crowded places increased the likelihood of transmission.Conclusion: The findings of this study reveal that adults in Saudi Arabia are cognizant of COVID-19 and maintained good attitudes and practices regarding it. Furthermore, health education programs aimed at improving awareness of the disease and appropriate control measures will be beneficial in curbing the virus pandemic. Keywords: Saudi Arabia, Coronavirus, Pandemic, COVID-19, Flu, Symptoms
What was the South Arabian Impact on the Development of Ethiopian Margins in Antiquity? Evolution of Settlement Patterns in the Wakarida Region from pre-Aksumite to Late Aksumite Periods

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. What was the South Arabian Impact on the Development of Ethiopian Margins in Antiquity? Evolution of Settlement Patterns in the Wakarida Region from pre-Aksumite to Late Aksumite Periods Anne Benoist, Iwona Gajda, Jérémie Schiettecatte, Ninon Blond, Sabina Antonini
Complications in Pregnancy in COVID-19 Positive Women

Linn Stenberg1*; Micaela Veneziano2; Donatella Mascheroni3; Matteo Bonatti4; Federica Verdi2; Monica Braghetto2; Jana Žodžika5; Martin Steinkasserer2 1Rīga Stradiņš University, Faculty of Medicine, Riga, Latvia. 2Department of Obstetrics and Gynecology, Provincial Hospital of Bolzano, Bolzano, Italy. 3Department of Neonatology and Neonatal Intensive Care, Provincial Hospital of Bolzano, Bolzano, Italy. 4Department of Radiology, Provincial Hospital of Bolzano, Bolzano, Italy. 5Rīga Stradiņš University, Faculty of Medicine, Department of Obstetrics and Gynecology, Riga, Latvia.
Preparation of Cu-ZnO/bentonite and its photocatalytic function for degrading methyl orange

The paper intends to present its study on the preparation method of Cu-Zn O / bentonite and the photocatalytic function for degrading the methyl orange as a result of enhancing the photocatalytic behavior of Zn O photocatalyst under the visible light or sunlight conditions and its regeneration capacity. For our research purpose,we have first of all managed to prepare a series of Cu- Zn O / bentonite composite photocatalysts with the sol-gel method. Secondly,we have managed to use the XRD and FTIR techniques to characterize the structure of the samples we have adopted. And,thirdly,we have made an investigation of the effects of the calcination temperature,the photocatalyst amount,the reaction time,the p H value of the methyl orange solution and the illumination condition on the photocatalytic behavior with the photocatalytic degradation of methyl orange sewage as the probe reaction. The results of our investigation show that the composition of Cu-Zn O can be obtained with the bentonite and the structure of Zn O in the composite samples is mainly hexagonal crystal system. The doped Cu2 +incorporated into the lattice structure of Zn O can partially replace Zn2 +. At the same time,part of Zn2 +in Zn O can be permeated into the interior layer of the montmorillonite instead of some Al3 +. The results of our investigation also show that the Cu- Zn O / bentonite sample calcined at 550℃ tends to behave in most active photocatalytic manner. On the condition when the initial concentration of the methyl range is 20 mg / L,the volume of the catalyst should be 1. 5 g / L,with the solution p H value being 6 and the illumination lasting for 120 min in an ultraviolet lamp,the degradation rate of methyl orange can be made to go up to 99. 25%. As compared with the Zn O / bentonite photocatalyst,it would be possible to improve the activity of Cu- doped Zn O / bentonite photocatalyst samples to a great extent. The efficiency of the photocatalytic degradation of methyl orange can also be increased to 60% under the visible light,including the sunlight. Moreover,the degradation effect is by nature very close to that under the ultraviolet light. Thus,the Cu-doped Zn O / bentonite photocatalyst samples prove to help to broaden the spectral response range of Zn O remarkably. Furthermore,the bentonite can not only be made as the carrier of Zn O but also helps to enhance the activity of the photocatalysts. In addition,it tends to be very easy to make the Cu- Zn O / bentonite composite photocatalyst settle down and recycling.However,no obvious change can be found with the sample being still very active even through a five-fold regeneration.
Creativity Training Model for Game Design

The popularity of digital games is increasing with a global market value of RM197.6 billion. However, the game produced locally still has no impact. One reason is that there is no emphasis on the game design process in the game development education program. Games designed have a problem in terms of creativity, and there is still no specific method of training creative thinking. This study aims to identify and validate game design's creativity components and develop a Creativity Training Model for Game Design (LK2RBPD Model) verified through the Game Design Document Tool (GDD Tool) prototype. This research has four main phases: the requirements planning, design, development, implementation, and testing phases. In the requirements analysis phase, the component of LK2RBPD Model was identified. The LK2RBPD Model contains elements from industry practices of game designing, creative and innovative thinking skills, creativity dimensions, Sternberg Creativity, and Cultural Activity theories. The GDD Tool prototype implementing the model was developed and tested. The LK2RBPD Model was evaluated using questionnaire survey, SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis, and verification of ideas in the GDD Tool prototype. Evaluation using a five-point Likert scale shows that GDD Tool prototype is effective in implementing 19 components. Expert verification on the results of game design ideas and creativity building using Cohen Kappa calculations is 0.94, indicating an excellent agreement. The results show that the LK2RBPD Model can be effectively used to train creativity in game design. This research's contributions are LK2RBPD Model, creative game design ideation process guideline, and GDD Tool prototype design.
Use of Pulsed-Field Gel Electrophoresis to Determine the Source of Methicillin-Resistant Staphylococcus aureus Bacteremia

Pulsed-field gel electrophoresis (PFGE) has historically been considered the gold standard in fingerprinting bacterial strains in epidemiological studies and outbreak investigations; little is known regarding its use in individual clinical cases. The current study detailed two clinical cases in which PFGE helped to determine the source of their methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Patient A was found to have MRSA bacteremia after trauma in her pelvic area. MRSA was also found in her groin but not in her nostril and rectum. PFGE was performed that showed variable bands of her MRSA isolates from blood and groin, suggestive of different strains of MRSA. Her MRSA bacteremia was determined to be unrelated to her pelvic trauma. Patient B was found to have MRSA bacteremia after colonoscopy. MRSA was also found in his nostril and rectum. PFGE was performed that showed variable bands of his MRSA isolates from blood and rectum but identical bands of MRSA isolates from his blood and nostril. His MRSA bacteremia was determined to be unrelated to his colonoscopy procedure. The current study demonstrates the use of PFGE to rule out the source of bacteremia in individual clinical cases.
Single-crystal neutron diffraction and Raman spectroscopic study of hydroxylherderite, CaBePO4(OH,F)

Abstract The crystal structure, H bonding and chemical composition of hydroxylherderite from the Bennett pegmatite, Buckfield, Oxford County, Maine, USA were investigated by single-crystal X-ray diffraction and neutron Laue diffraction, electron microprobe analysis in wavelength-dispersive mode, inductively coupled plasma-atomic emission spectrometry and polarized Raman spectroscopy [Ca(Na0.01Ca1.01)Σ1. 02 Be(Be0.98Li0.01)Σ0. 99 P(Si0.03P0.98)Σ1. 01O4(OH0.67F0.33)Σ1, Z = 4, a = 9.7856(5), b = 7.6607(5), c = 4.8025(3) Å, β = 90.02(3)°, V= 360.02(4) Å3, space group P21/a]. The neutron-structure refinement converged with fully anisotropic displacement parameters to give a final agreement index R1 = 0.0363 for 85 refined parameters and 1614 unique reflections with Fo >4σ(Fo). The structure refinement was used to determine the H position and geometry of H bonding in the structure. One H site was found on the O5 anion with an O-H interatomic distance, corrected for ‘‘riding motion’’, of 0.996(2) Å. The H bond of hydroxylherderite is bifurcated with O2 and O4 acceptors forming H bonds with O5···O2 = 3.163(1) Å, H···O2 = 2.544(2) Å and O5-H···O2 = 121.8(1)º; O5···O4 = 3.081(1) Å , H···O4 = 2.428(2) Å and O5-H···O4 = 124.4(1)°. The highly non-linear O-H···O hydrogen bonds in hydroxylherderite and in the isotypic datolite [ideally CaBSiO4(OH)] are constrained by the tetrahedral network topology. Two main O-H stretching modes were observed in the Raman spectra at 3565 and 3620 cm-1, which are attributed to the bifurcated H bond. Two additional weak bands at 3575 and 3610 cm-1 are attributed to Si-P disorder in the tetrahedral sites. Results of this study will contribute to the correlation of H-bonding geometry and O-H stretching frequencies of highly non-linear H bonds.
Potential Misdiagnosis between COVID-19 and Dengue Infection Using Rapid Serological Test

The coronavirus disease 2019 (COVID-19) pandemic that has a significant rapid transmission is an international public health concern. Several dengue-endemic countries reported similar clinical and laboratory features between COVID-19 and dengue in the early incubation period, and thus discerning the infection is difficult. As a dengue-endemic country, Indonesia also poses the same challenge during the COVID-19 outbreak. This current study analyzed the IgG and IgM profiles from COVID-19 patients by using a serological SARS-CoV-2 and dengue rapid test. In addition, 38 sera from healthy individuals (pre-COVID-19 date) were analyzed using a dengue rapid test. Among 120 samples, 4 samples indicated dengue IgG positive. However, IgM, NS1, and RT-PCR analyses showed negative results. Interestingly, regarding seropositivity of NS1 and DENV IgG from healthy individuals (pre COVID-19 infection), two samples were positive DENV IgG, while one of them was positive NS1. This suggested that in the dengue-endemic area, many people have already experienced dengue and have immunity against dengue virus. There is also the possibility of antibody cross-reactivity between COVID-19 and dengue infection. This also emphasizes the high demand for a rapid method with high sensitivity and specificity that can distinguish between SARS-CoV-2 and dengue.
Gastroenteritis Diagnosis and Management in Children: A simple Literature Review

Gastroenteritis is a common infectious disease of the gastrointestinal tract and is of particular importance in infants, children, and adolescents. The morbidity and mortality associated with dehydration can be fatal despite the recent advances in care and management. This disease can be the result of many pathogens, with rotavirus being the leading cause, followed by the bacterial causes of Campylobacter spp. and Salmonella spp. Objective: In this study, we aimed to review the literature on the diagnosis and management of gastroenteritis in children to provide a summarized, yet comprehensive review paper. Method: PubMed database was used to select articles, and the following keys were used in the MeSH ((“Gastroenteritis"[MeSH]) AND (“Evaluation"[MeSH] OR "Management"[MeSH] OR “Diagnosis"[MeSH])). Conclusion: Proper clinical assessment to rule out other causes of noninfectious gastroenteritis is the leading key management. The untreated conditions may deteriorate so quickly and patients become severely dehydrated resulting in endemic infection and serious deterioration of community health. The identification of high-risk groups including immunocompromised patients, pregnant women, and non-responsive patients by the physician is crucial as they have a higher rate of deterioration. Oral rehydration therapy is considered the first line in the treatment algorithm and should be combined with nutrient and zinc supplementation. Other options of therapy include IV hydration, antibiotics, and hospitalization in severe cases.
Assessment of UV Protection Factor of Flax, Polyester and Nylon Fabrics Treated with Zinc oxide Nanoparticles

In this study, influence of nano-zinc oxide treatment on the UV protection properties of the widely used apparel fabrics including flax, polyester, and nylon, were investigated by means of ultraviolet protection factor (UPF) assessment. Nanoparticle content of the flax, polyester, and nylon fabrics were determined to be 1.2, 0.9, and 1.5 wt%, respectively. The UPFs of non-treated fabrics were in the range of 1.5 to 2.2 in the entire UV region. An improvement in UPF was obtained after introducing the nanoparticles into the fabrics. Approximately a sixfoldincrease in UPF (11.02 ± 1.57) against UV-B was recorded for nylon. Flax and polyester fabrics had nearly the same UPF values around 2.8 against UV-B, while they were close to each other (2.71 ± 0.22 and 2.61 ± 0.28 for flax and polyester, respectively) against UV-A. SEM micrographs showed that nanoparticles agglomerated on flax and polyester in high extent, whereas they existed as dispersed particles at micro scale together with some slight agglomeration inside nylon.
Computer simulation of logarithmic transformation function to expand the range of high-precision measurements

Studies of the effect of normalized radiation fluxes on the measurement result revealed the most influential one. The value of the normalized flow F0 was shown to have a greater effect on the relative measurement error than ΔF0. This allows investigating the relationship between the controlled Fx and the normalized flow F0. Experimental studies have confirmed that by a threefold increase in the normalized flow F0 relative to the controlled flow Fx, it becomes possible to increase the measurement accuracy in a wide range. In particular, it was found that at the flux value F0=0.16×10-3 W, it becomes possible to measure the controlled flow in a wider range Fх=(0.16×10-3÷0.97×10-3) W with a relative error of thousandths of a percent. The effect of the reproduction error on the measurement result under the condition of a threefold increase in the normalized flow F0 relative to the controlled flow Fх is shown. It was found that an increase in the reproduction error of the normalized radiation fluxes by 1 order leads to a narrowing of the range in which the value of the relative error tends to zero. It is shown that in the absence of a threefold increase in the normalized flow F0, an increase in the reproduction error of the normalized flows by 1 order leads to individual cases of reduction in the relative error to small-order values. The latter, by the way, applies to cases where the ratio between the normalized F0 and controlled flow Fx, as 3 to 1, is ensured. It is shown that the reproduction error of the dark flow does not affect the measurement result.Thus, there is reason to believe that it is possible to expand the measurement range, in which the value of the relative error is thousandths of a percent, even for 1 measurement cycle