Miracle-dz/UniFAR-FTUs huggingface dataset:
Spectroscopic and magnetic evidence of coordination properties of bioactive diethyl (pyridin-4-ylmethyl)phosphate ligand with chloride transition-metal ions

A series of five chloride coordination compounds of diethyl (pyridin-4-ylmethyl)phosphate (4-pmOpe) ligand, i.e. [CuCl2(4-pmOpe)2], [NiCl2(4-pmOpe)4], [CoCl2(4-pmOpe)], [ZnCl2(4-pmOpe)2], and [CdCl2(4-pmOpe)2], was prepared and studied. Stoichiometry and stereochemistry of the compounds was confirmed by spectroscopic and magnetic studies as well as by elemental analyses. The 4-pmOpe ligand has a capacity to coordinate to metal ions by means of phosphoryl oxygen and/or nitrogen of pyridine atoms. In Cu(II), Ni(II), and Zn(II) compounds, 4-pmOpe adopts the monodentate coordination mode, bonding metal centers through the pyridine nitrogen atom only. On the contrary, in Co(II) and Cd(II) compounds, 4-pmOpe acts as N,O-bridging ligand forming polynuclear structures. Magnetic studies (1.8–300 K) indicate mononuclear structure of the Co(II) and Ni(II) compounds and suggest existence of a very weak exchange coupling between metal centers in crystal lattice.
Curcumin's antioxidant effects on inflammatory diseases

There are similar inflammatory reasons behind non-contagious chronic diseases. The prevalence of these diseases increases everyday both in our country and around the world. That's why scientists have begun looking for strong antioxidants that could help prevent and treat such inflammatory diseases. Curcumin is one of those antioxidants. Curcumin is one of the components of turmeric, which belongs to the ginger family. Many studies showed that the curcuminoids in turmeric can be used to prevent and treat cardiovascular, autoimmune and endocrine diseases, cancer as well as various inflammatory diseases. With this study, we aim to interpret these recent studies conducted with curcumin.
Factors influencing the adoption of telemedicine health services during COVID-19 pandemic crisis: an integrative research model

ABSTRACT This study aims to investigate patient’s behaviour towards the adoption of telemedicine health services with the integration of three well-Known theories, namely, unified theory of acceptance and use of technology (UTAUT), the protection motivation theory (PMT) and DeLone & McLean information success model. The results of structural equation modeling indicate that altogether UTAUT, PMT and DeLone & McLean information success model explained 80.4% variance in patient attitude towards adoption of telemedicine health services. Findings suggest that health-care professional can boost patient attitude towards adoption of telemedicine health services by improving factors such as service quality, computer self-efficacy and performance expectancy.
Study on Changes in Physical and Mechanical Properties and Integrity Decay of Sandstone Subjected to Freeze–Thaw Cycling

To investigate the effects of long-term freeze–thaw cycles on the physical and mechanical properties as well as the attenuation trend of rocks, this study conducted saturated freeze–thaw tests on coarse sandstone and fine sandstone samples collected from the slopes of Muli Coal Mine in Qinghai Province. The samples underwent different numbers of freeze–thaw cycles, and their porosity, longitudinal wave velocity, and uniaxial compression strength were studied. The variations in the physical and mechanical properties of the two types of sandstone with respect to the number of freeze–thaw cycles were analyzed. Take uniaxial compressive strength (UCS) as the integrity index, and decay laws of rock integrity were analyzed based on the decay equation suggested in previous studies. We found that the decay index λ, which is commonly assumed to be constant, varies with the number of freeze–thaw cycles. Furthermore, the λ values varied between different rock types. For fine sandstone, the λ decreases with an increase in the number of freeze–thaw cycles, ranging from 0.00385 to 0.005. However, for coarse sandstone, the λ initially decreases and then increases with an increase in the number of freeze–thaw cycles. The range of λ for coarse sandstone is between 0.00376 and 0.00481. Finally, we established a relationship between the decay index, porosity, and longitudinal wave velocity in the fine sandstones. This relationship provides a more straightforward way to evaluate the integrity of fine sandstones subjected to different numbers of freeze–thaw cycles.
SPECTRAL AND TIME DEPENDENCE STUDIES OF THE ULTRA WEAK BIOLUMINESCENCE EMITTED BY THE BACTERIUM Escherichia coli

Abstract— Weak luminescence was detected using photon counting equipment, from oxygenated, liquid cultures of Escherichia coli during two stages of its growth cycle. The first period of emission occurred during the exponential phase of growth and comprised a UV(210–330 nm) band and a visible region(450–620 nm) band, the total intensity being (1.65 ± 0.12) x 103 counts s‐1. The second period of emission occurred during the stationary phase of growth and comprised only a visible region(450–620 nm) band of intensity (8.72 ± 0.15) x 103 counts s‐1. When the growth temperature was raised from 306.15 to 310.15 K, the above emission intensities were approximately halved, but the spectra were not changed significantly. No luminescence was observed at either temperature when the E. coli was grown anaerobically. The visible region luminescence was attributed to excited carbonyl groups and excited singlet O2 dimers formed during the decomposition of lipid peroxides. The UV component was tentatively assigned to oxidative side reactions accompanying the synthesis of proteins.
Effects of Robot-Assisted Rehabilitation on Hand Function of People With Stroke: A Randomized, Crossover-Controlled, Assessor-Blinded Study.

IMPORTANCE The effects of robot-assisted task-oriented training with tangible objects among patients with stroke remain unknown. OBJECTIVE To investigate the effects of robot-assisted therapy (RT) with a Gloreha device on sensorimotor and hand function and ability to perform activities of daily living (ADLs) among patients with stroke. DESIGN Randomized, crossover-controlled, assessor-blinded study. SETTING Rehabilitation clinic. PARTICIPANTS Patients (N = 24) with moderate motor and sensory deficits. INTERVENTION Patients participated in 12 RT sessions and 12 conventional therapy (CT) sessions, with order counterbalanced, for 6 wk, with a 1-mo washout period. OUTCOMES AND MEASURES Performance was assessed four times: before and after RT and before and after CT. Outcomes were measured using the Fugl-Meyer Assessment-Upper Extremity (FMA-UE), Box and Block Test, electromyography of the extensor digitorum communis (EDC) and brachioradialis, and a grip dynamometer for motor function; Semmes-Weinstein hand monofilament and the Revised Nottingham Sensory Assessment for sensory function; and the Modified Barthel Index (MBI) for ADL ability. RESULTS RT resulted in significantly improved FMA-UE proximal (p = .038) and total (p = .046) and MBI (p = .030) scores. Participants' EDC muscles exhibited higher efficacy during the small-block grasping task of the Box and Block Test after RT than after CT (p = .050). CONCLUSIONS AND RELEVANCE RT with the Gloreha device can facilitate whole-limb function, leading to beneficial effects on arm motor function, EDC muscle recruitment efficacy, and ADL ability for people with subacute and chronic stroke. WHAT THIS ARTICLE ADDS The evidence suggests that a task-oriented approach combined with the Gloreha device can facilitate engagement in whole-limb active movement and efficiently promote functional recovery.
An approach to sustainable agriculture by untangling the fate of contrasting nitrogen sources in double‐season rice grown with and without biochar

Excessive use of inorganic nitrogen (N) fertilizers is the primary anthropogenic cause of low N use efficiency and environmental damage in wetland rice agriculture. However, little is known about the performance of traditional inorganic N sources used in paddy rice production. Biochar (BC) is considered to be a climate change mitigation tool that can enhance N uptake and utilization in N‐fertilized crops. To test this hypothesis, we performed a pot experiment to study the fate of 15N‐labeled urea, ammonium nitrate, and ammonium sulfate with and without BC at tillering, heading, and maturity stages of rice in the early and late seasons of 2019. Fertilizer N leaching was significantly reduced by 75.69% and 110.32% in BC vs. non‐BC treatments across growth stages in the early and late seasons. The rate of leaching was lower for urea than for ammonium nitrate and ammonium sulfate. Furthermore, the addition of BC resulted in 55.58% and 41.33% higher soil 15N concentrations in the early and late season, respectively, indicating that BC increased N adsorption. 15N uptake by roots, stems, leaves, panicles, and grains averaged 52.39%, 37.14%, 40.86%, 36.37%, and 29.94% higher in BC‐amended pots than in BC‐free pots in both seasons. There were significant differences (p < 0.05) among N sources in terms of fertilizer N loss, residual N, and N uptake, and performance was ranked in the order urea > ammonium sulfate > ammonium nitrate. Overall, our results indicate that urea with BC is a preferable N source for double rice cropping systems compared with ammonium nitrate and ammonium sulfate.
Chromate reduction by Serratia marcescens immobilized on activated carbon

Serratia marcescens, isolated from tannery effluents, was resistant to chromate (0.5 mM) under both aerobic and anaerobic conditions. A stable biofilm was developed, using activated carbon as a support. Extracellular precipitate suggests that insoluble chromium hydroxide was formed. The strain showed an enhanced cell growth in an aerobic culture medium, although under anaerobic conditions chromate reduction was carried out more efficiently. About 95% of chromate was reduced in 4 days.
Design and Implementation of Real Time RMS Measurement System based on Wavelet Transform Using adsPIC-type Microcontroller

: This paper presents a design and implementation of Root Mean Square (RMS) measurement system based on fast discrete Wavelet using a dsPIC-type microcontroller. For data acquisition, two sensors have been used such as the voltage divider for sensing voltage and the Hall Effect sensor for sensing the current. The proposed method has the real-time calculation advantages and can be used in sinusoidal and non–sinusoidal electrical power systems. The results of calculations have been verified using MATLAB and Proteus ISIS simulations. It has been proved that the Wavelet transform measuring technique is more accurate as it takes in consideration all the harmonics in the analyzed signal and provides temporal information, which is absent in other transforms or not directly available in the Fourier transform
SAMPLE SIZE REQUIREMENTS FOR THE DETERMINATION OF CHANGES IN SOIL NUTRIENT POOLS

In long-term field studies, the number of soil samples required to detect a specified change is often determined by using the standard error of a soil property from a pilot study. When a soil property is highly variable, estimates of its standard error will also be highly variable. Therefore, it is useful to have confidence limits for the standard error in sample size calculations. We explored the empirical distribution of the standard error for several soil properties (total carbon pools, exchangeable cation pools, and forest floor element pools) using data collected from a northern hardwood forest site in central New Hampshire. We used a bootstrapping routine to simulate data sets for sample sizes ranging from 6 to 60 soil pits and computed the mean, 95%, and 98% confidence limits for the percentage change detectable by a specified number of sample observations. Using the 95% confidence limit for standard error resulted in as much as a twofold increase in the sample size requirement compared with the average standard error. For normally distributed data, the bootstrap confidence limits of standard error agree with those computed analytically. In the presence of modest nonnormality in the data, however, the analytic confidence limits do not agree with the bootstrap limits. Since the bootstrap procedure is free of parametric assumptions, it is a useful tool for general application in soil science.
In the Search of an Assessment Method for Urban Landscape Objects (ULOs): Tangible and Intangible Values, Public Participation Geographic Information Systems (PPGIS), and Ranking Approach

The effective assessment of urban space must link subjective and objective approaches. The main aim of the paper was to develop and test such a method of assessment in relation to one of the elements of the urban landscape called urban landscape objects (ULOs). The tested method fulfils the following requirements: (1) merges social and expert opinions, (2) analyzes diverse characteristics of urban space, (3) quantitatively presents the results of values assessments, and (4) features the simplicity of structure and ease of public understanding. The method was tested in relation to 34 ULOs located in three different functional sites within Lublin city (Poland). The result enables authors to answer three research questions: (1) How do people perceive ULOs located in different sites? (2) What kinds of tangible values possess different ULOs and how can they be expressed? (3) How can intangible and tangible values be merged? The general finding of the study showed that the Old Town features the highest ranked position in terms of all the values (mean aggregation index (A) ULOs = 0.64), together with the higher share of the most appreciated ULOs, whereas the Lagoon features the lowest ranked position (mean AULOs = 0.35), also statistically comparable with the Campus (mean AULOs = 0.45).
Biogas Production from Vegetables and Fruit Wastes Using Anaerobic Floating Bioreactor

Markets and supermarkets are one of the pillars of the country's economy, besides that, they are also the biggest contributors to vegetable and fruit waste which can cause various environmental problems. Therefore, the abundance of vegetable and fruit waste produced by markets and supermarkets can be utilized as environmentally friendly alternative energy, namely biogas. This study aimed to determine the effect of organic loading rate (OLR) on biogas production and gas composition in a continuous anaerobic floating bioreactor using mixed vegetable and fruit waste. A 40-l anaerobic floating bioreactor was utilized and the hydraulic retention time was 10 days; one kg of vegetable and fruit wastes at a 1:1 mass ratio was added with water to 4 l and introduced during 25 days; the daily biogas production was collected in a floating drum and measured as volume. The maximum biogas yield was 0.0452 m 3 /kg, achieved using the OLR of 0.0125 kg/l.day. The use of OLR of 0.0250, 0.0375 and 0.0500 kg/l.d reached biogas yields of 0.0435, 0.0282, and 0.0163 m 3 /kg, respectively. The composition of the maximum biogas yield was 68.17% CH 4 , 19.34% CO 2 , 1.85% H 2 S, and 0.64% NH 3 .
Participation-Focused Strategy Use Among Caregivers of Children Receiving Early Intervention

Importance: Evidence on common types of participation-focused caregiver strategies can help occupational therapy practitioners to take an evidence-based approach to designing participation-focused practice. Objective: To identify and explore types of caregiver strategies to support young children’s participation in valued occupations in the home and community. Design: Qualitative study using a subset of data collected online with the Young Children’s Participation and Environment Measure (YC–PEM). Narrative responses about strategy use were content coded to the family of Participation-Related Constructs (fPRC) framework using a deductive analytic approach to identify relevant types of participation-focused strategies used in the home and community. Responses were further analyzed within each relevant fPRC construct using an inductive analytic approach to identify the scope of strategies used for each construct. Setting: Early intervention. Participants: Caregivers (N = 106) of young children receiving early intervention. Outcomes and Measures: Caregivers’ strategies to support their child’s home and community participation, provided by the YC–PEM. Results: Caregivers most commonly adapted the child’s environment or context to support their child’s home and community participation (45.06%). The least common focus of caregiver strategies was the child’s activity competencies (11.16%). Three or more types of caregiver strategies were identified for each participation-related construct. Conclusion and Relevance: Results indicated that caregivers used a range of strategies related to each of the participation-related constructs to support their child’s participation in home and community occupations, most commonly targeting the environment. Occupational therapy practitioners can select from this range of strategies when planning participation-focused early intervention with families. What This Article Adds: This study yields new evidence on the scope of caregiver strategy use to support young children’s participation in home and community occupations. Occupational therapy practitioners can apply this evidence to anticipate common areas of caregiver strategy use in participation-focused practice with families in early intervention.
Perception to COVID-19 epidemic and acceptance of vaccination among healthcare workers in Beijing: a survey before the completion of COVID-19 vaccine phase III clinical trials

Background: Covid-19 vaccine research and development is progressing and expected to be put into use in a predictable time, we aimed to learn the awareness and acceptance of the new vaccine by healthcare workers (HCWs) in Beijing, China. Methods: A cross-sectional survey was conducted to investigate HCWs including doctors, nurses and technicians from sixty hospitals in Beijing to obtain the perception of COVID-19 epidemic and the attitudes towards vaccination before before the completion of vaccine phase III clinical trials. Multivariate analysis was applied to evaluate the associated factors with intention to get vaccination.Results: A total of 8040 HCWs was recruited. 67.1% reported they would get vaccination, others said unsure or would not. Half of the HCWs were unsure whether the outbreak in China would come back and the global epidemic would last for a long time. 67.6% agreed the epidemic can be prevented by vaccination. Positive associated factors with willingness to get vaccination were mainly included epidemic situation prognosis, perception of disease severity, self infection risk and disease can be prevented by vaccine, etc. Two positive factors of “wanted the vaccine free of charge” (OR:5.807, 95%CI:5.083-6.635, P<0.001) and “believed vaccine approved for license have been fully evaluated in clinical trials” (OR:4.485, 95%CI:3.849-5.227, P<0.001) were strongly associated with willingness to get vaccination, while two factors of “highest academic degree” (OR:0.840, 95%CI:0.772-0.914, P<0.001) and “professional ranks and titles” (OR:0.930, 95%CI:0.865-1.000, P=0.049) were negative associated . Conclusions: A little above moderate willingness to get COVID-19 vaccination was found among HCWs in Beijing before the vaccine being licensed. Free vaccination strategy should be considered to implement, effective measures should be taken to remove barriers and convey correct information through appropriate ways to enhance the acceptance of COVID-19 vaccination among HCWs in China.
Inexact basic tensor methods for some classes of convex optimization problems

ABSTRACT In this paper, we analyse the Basic Tensor Methods, which use approximate solutions of the auxiliary problems. The quality of this solution is described by the residual in the function value, which must be proportional to , where is the order of the method and ϵ is the desired accuracy in the main optimization problem. We analyse in details the auxiliary schemes for the third- and second-order tensor methods. The auxiliary problems for the third-order scheme can be solved very efficiently by a linearly convergent gradient-type method with a preconditioner. The most expensive operation in this process is a preliminary factorization of the Hessian of the objective function. For solving the auxiliary problem for the second order scheme, we suggest two variants of the Fast Gradient Methods with restart, which converge as , where k is the iteration counter. Finally, we present the results of the preliminary computational experiments.
Salt tolerance and mineral relations for celery

Abstract To invertigate the relationship between salt tolerance and plant mineral status in celery (Apium graveolens L.) growth and the concentration of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sodium (Na), and chloride (Cl) in different tissues were determined in plants grown in hydroculture with nutrient solutions containing 5 (control), 50,100, and 300 mM sodium chloride (NaCl) for four weeks. At salinity levels of 50 and 100 mM NaCl, there was a moderate, albeit significantly, reduction of growth, while a drastic decrease in both fresh and dry weight was obtained at 300 mM NaCl. Regardless of the salinity level, growth resumed promptly and completely once the stress was ceased. Sodium chloride stress reduced the accumulation of nitrate (NO3)‐N in all plant tissues, but there were no relevant effects on the concentration of reduced N and P. The concentration of K in roots and leaf petioles was unaffected by NaCl treatment, but it gradually declined with increasing salinity in leaf bla.
A fundamental optimal relationship of an endo-reversible four-reservoir chemical potential transformer

SYNOPSIS A new cyclic model of a four-reservoir endoreversible chemical potential transformer is put forward. The optimal relationship between the rate of energy pumping and the coefficient of performance (COP) as well as the maximum rate of energy pumping and the corresponding COP are derived by using thermodynamic optimisation. The optimal times of the four mass transfer processes are also obtained. Moreover, the effects of the cyclic parameters on the optimal relationship and the limits of COP and the rate of energy pumping are studied by detailed numerical examples.