Miracle-dz/UniFAR-FTUs huggingface dataset:
Рroperties of Bioactive Thin-Films Based on System SiO2-P2O5-CаO and SiO2-P2O5-СаO-Na2O Obtained by Sol-Gel Method

Thin films were synthesized from alcohol film-forming solutions based on tethraethoxysilane, phosphoric acid, calcium chloride and sodium chloride using sol-gel method. Thin films were produced on the single-crystal silicon substrates (model substrate) by extraction at a velocity of 5 mm/s following by heat treatment at a temperature of 60°С for 20 minutes and at a temperature of 600°С for 1 hour. During the experiment it was established that film-forming solutions are usable only for 2 to 7 days from the moment of preparation. Using thermal and infra-red – spectroscopic analysis main stages of oxide system formation were retraced. According to data from x-ray phase analysis phases CaClH2PO4∙H2O, Ca (H2PO4)2∙H2O, CaHPO4∙2H2O, Ca2SiO4∙H2O, Ca5(PO4)3Cl и CaSiO3,NaCl, CaCl2, H2PO4·H2O, Ca5(PO4)3Cl, SiO2 are being registered in the sample. Biological activity of the received material was evaluated in SBF environment. Presence of the sodium oxide in the system leads to the increase in the bioactivity of the material. Such material intensively exchanges with solution in calcium ions and phosphate-ions; silanol groups fix calcium ions, furthering the formation of the layer of amorphous calcium phosphates gradually crystallizing in hydroxyapatite, and other calcium phosphates.
Ubuntu and the Perceptions of Unethical Leader Conduct: A Case Study of Public Secondary School Leaders in Kenya

This paper extends and complements previous research on unethical leader behavior by examining the social and cultural perspectives that inform the understanding of objectional conduct among secondary school leaders in Kenya. The study used a social constructivist theoretical framework, and qualitative case study, and semi-structured interviews with school boards of governors, principals, and heads of department and school bursars. The findings revealed that cultural beliefs underpinned by the ubuntu ethic informed the school leaders' perceptions of unethical leadership behavior in the Kenyan secondary school contexts. Four sub-themes highlight acts that contradict the ubuntu values of altruism, humanness, care, and solidarity. They include disregard for community interests, neglect of care for one's kin, disregard for harmony, and elders' respect. The study concluded that western universal perspectives and definitions could not solely be relied upon to describe unethical leadership behavior in schools in non-Euro western contexts. The study contributes to the literature on unethical and ethical leadership by proposing a potential benefit in recognizing and incorporating non-western perspectives in exploring and defining the unethical leadership construct.
The educational journey of former foster youth: A dream deferred

This qualitative study explored the educational needs and experiences of 27 adults who were between the ages of 30 and 50 but emancipated from foster care as youth. This study employed an interpretive phenomenological approach to understanding the narratives of the participants to gain deeper insight into the supports and barriers in obtaining a post-secondary education. Key findings from this study are that the majority of emancipated youth desire to obtain a post-secondary education but developmental difficulties such as an incomplete transition into emerging adulthood, lack of knowledge about post-secondary education, and lack of financial resources prevent matriculation into higher education. However, later in life, many emancipated youths are able to return to a post-secondary institution and graduate with a bachelor’s degree or higher. The primary supportive factor is a positive relationship and additional developmental maturity afforded by time. Implications of these findings are that those serving emancipating youth need to employ a developmental biopsychosocial perspective in assisting these youth. Both ensuring their healthy development and maturation but also helping to remove logistical barriers to ensure the ability of these youth to obtain a post-secondary education.
Structure Property Relationships of Proton Exchange Membranes

The major challenge of the research was to characterize and develop concepts for establishing structure/property relationships between the functionality of the polymer backbone, the states of water and the membrane transport properties. Most of the hydrocarbon based random copolymers reported in the literature show reduced proton conductivity at low water content. This was attributed to the formation of an isolated morphology. Over the last few years our group has synthesized thermally stable multiblock copolymers with varying chemical structures and compositions. Block copolymers consist of two or more incompatible polymers (i.e. blocks) that are chemically conjoined in the same chain. The transport properties of the multiblock copolymers showed a strong dependence on the morphology in contrast to the random copolymers. Irrespective of the nature of the backbone, the transport properties scaled with the block lengths of the copolymers. An increase in block length for a given series of block copolymer was associated with improved proton conduction, particularly under partially hydrated conditions compared to the random copolymers. The structureproperty relationship of the proton conductivity and self-diffusion coefficient of water was obtained as a function of the volume fraction of water for all the random and block copolymers. At a given volume fraction, the block copolymers displayed both higher self-diffusion coefficients of water and proton conductivities relative to the random
IMPACTS OF FINANCIAL LEVERAGE ON STOCK RETURNS: EVIDENCE FROM VIETNAM LISTED FIRMS

Received: 16/4/2021 The paper examined the effects of financial leverage on the stock return of listed firms in Vietnam during 2014-2019. The paper employed regression models including Pooled Ordinary Least Squared, Randomeffect Model and Fixed-effect Model at first, and then applied The Breusch Pagan Lagrangian multiplier test, Modified Ward test and Hausman test to select the suitable model among the three, finally used Robust test to fix the defect in model. The finding shows that leverage in total had a negative and significant impact on the return of stock, but the two factors of total leverage which are short-term debt and long-term debt both resulted in positive effect to stock return. In addition, the firm performance variables such as growth and return on assets delivered good signal to stock return, while the size of firm showed the opposite. From these results, listed firms in Vietnam know how to bring value to investors and stock investors also have a wide view of company basis to make decisions. Other stakeholders such as stock market entities or the government gain suggestions to improve trading market. Revised: 17/5/2021
Lags in phenological acclimation of mountain grasslands after recent warming

In the current biodiversity crisis, one of the crucial questions is how quickly plant communities can acclimate to climate warming and longer growing seasons to buffer the impairment of community functioning. Answering this question is pivotal especially for mountain grasslands that experience harsh conditions but provide essential ecosystem services to people. We conducted a reciprocal transplant experiment along an elevation gradient (1,920 m vs. 2,450 m) in the French Alps to test the ability of plant species and communities to acclimate to warming and cooling. For 3 years, we measured weekly the timing of phenological events (e.g. start of flowering or greening) and the length of phenological stages linked to demographic performance (e.g. lengths of flowering or greening periods). We found that warming (and cooling) changed the timing of phenological events strongly enough to result in complete acclimation for graminoids, for communities in early and mid‐season, but not at all for forbs. For example, warming resulted in later greening of communities and delayed all phenophases of graminoids. Lengths of phenological stages did not respond strongly enough to climate change to acclimate completely, except for graminoids. For example, warming led to an acclimation lag in the community's yearly productivity and had a strong negative impact on flowering of forbs. Overall, when there was an acclimation failure, responses to cooling were mostly symmetric and confirmed slow acclimation in mountain grasslands. Synthesis. Our study highlights that phenological plasticity cannot prevent disruption of community functioning under climate warming in the short term. The failures to acclimate after 3 years of warming signals that species and communities underperform and are probably at high risk of being replaced by locally better‐adapted plants.
IPAQ-L and CPET Usefulness in a North-Eastern Romanian Population Undergoing Cardiac Rehabilitation

(1) Background: Current guidelines emphasize the importance of regular moderate and/or high intensity aerobic exercises in cardiovascular disease prevention. Our study aimed to evaluate the utility of the International Physical Activity Questionnaire Long Form (IPAQ-L) for its physical activity (PA) quantification in patients with heart failure with reduced ejection fraction. (2) Methods: We conducted a cross-sectional study of 110 patients aged between 34 and 69 years admitted to the Cardiovascular Rehabilitation Clinic. All patients underwent a clinical examination, blood tests, a cycle ergometer exercise stress test and individual assessment of their weekly PA level using the IPAQ-L. (3) Results: Obesity, hypertension and type 2 diabetes were highly prevalent in our study group but did not influence the IPAQ-L results. In terms of physical performance, moderate intensity was the most common level of intensity found in our study group. Regarding the data on the relationship between the IPAQ-L questionnaire and cardiopulmonary exercise testing (CPET) parameters, vigorous PA was correlated with predicted maximal oxygen uptake (p = 0.025) and moderate PA, in addition to walking, were correlated with heart rate reserve (p = 0.005 and p = 0.009, respectively). (4) Conclusions: IPAQ-L can be used for the evaluation of individual PA levels within a cardiovascular rehabilitation program, but cannot substitute for the importance and utility of CPET.
The Effectiveness of Nursing Delivered Interventions on Readmission Rate among Patients Post Coronary Artery Bypass Graft Surgery; a Systematic Review

Introduction: Despite that hospital readmission after CABG surgery became an international concern, fewstudies have focused on nurse’s role in the reduction of the readmission rate.The purpose: This reviewaims to assess the effectiveness of nursing interventions that are reported to reduce patient’s readmissionpost CABG surgery. Methods: a systematic review following the PRISM Aprotocol was operated. Relevantstudies were retrieved from two main electronic databases. Results: Eight studies met the inclusion criteria.The retrieved studies were conducted to identify the effectiveness of nursing interventions on readmissionrate among patients post CABG surgery. Different types of nursing interventions were identified andgenerally, it decreased the readmission rate among patients in most of the studies. Conclusion: Differentnursing interventions have been reported to reduce readmission rate after coronary artery bypass graftsurgery. However, a better reporting of these nursing interventions and linking it with nursing staff trainingand qualification is recommended.This review is registered at PROSPERO; the registration number is: CRD42020143206
SRPS-deep-learning-based photometric stereo using superresolution images

This paper introduces a novel deep-learning-based photometric stereo method that uses superresolution (SR) images: SR photometric stereo. Recent deep-learning-based SR algorithms have yielded great results in terms of enlarging images without mosaic effects. Supposing that the SR algorithms successfully enhance the feature and colour information of original images, implementing SR images using the photometric stereo method facilitates the use of considerably more information on the object than existing photometric stereo methods. We built a novel deep-learning-based network for the photometric stereo technique to optimize the input–output of SR image inputs and normal map outputs. We tested our network using the most widely used benchmark dataset and obtained better results than existing photometric stereo methods.
I am not the parent I should be: Cross-sectional and prospective associations between parental self-discrepancies and parental burnout

ABSTRACT Because research has shown systematic associations between self-discrepancies and several psychological disorders, self-discrepancy is considered as a transdiagnostic factor in psychopathology. The current research contributes to the literature by testing both cross-sectionally and longitudinally the role of self-discrepancies in parental burnout, an exhaustion disorder in the parenting domain where standards are high and prescriptions numerous. In three studies (including a prospective one; N1 = 109, N2 = 1689, N3 Third measurement time = 553 parents), we showed that self-discrepancies are strongly associated with parental burnout, and Study 3 showed that they even predict rank-order increases in such burnout. These results have implications for research on self-discrepancies, parental burnout and psychopathology more broadly.
Deep Learning based Cell Classification in Imaging Flow Cytometer

Deep learning is an idea technique for image classification. Imaging flow cytometer enables high throughput cell image acquisition and some have integrated with real-time cell sorting. The combination of deep learning and imaging flow cytometer has changed the landscape of high throughput cell analysis research. In this review, we focus on deep learning technologies applied in imaging flow cytometer for cell classification and real-time cell sorting. This article describes some recent research, challenges and future trend in this area.
Learning Spatiotemporal Dynamics in Wholesale Energy Markets with Dynamic Mode Decomposition

Energy markets facilitate the balancing of electricity generation (supply) and demand while ensuring non-discriminatory access. Understanding energy market dynamics is essential to improving grid efficiency and resilience and optimizing the development of new energy conversion and storage technologies. Accurate energy price forecasts are essential for many energy storage technologies to be profitable from price arbitrage. In this paper, we apply the novel spatial-temporal dimensionality reduction method of Dynamic Mode Decomposition (DMD) to forecast 6587 locational marginal prices in the California Independent System Operator (CAISO) on the Day-Ahead Market (DAM). DMD is a promising equation-free modeling technique in systems with inherent periodic tendencies in time such as financial markets and fluid dynamics. Yet we show, for the first time, that DMD cannot reliably forecast day-ahead energy prices due to the so-called standing wave problem. Instead, we find Augmented DMD (ADMD) overcomes these limitations is a fast and accurate price forecaster. We benchmark DMD, ADMD, and backcasting forecasting methods for optimal price arbitrage with an energy storage system. We find, using ADMD, a market-connected energy storage system can capture up to 92% of allowable revenues in rolling horizon simulations. Lastly, we show ADMD is up to 1000-times faster than time-series forecasting methods (i.e., ARIMA) which requires orders of magnitude less data than deep/machine learning techniques.
Continuity of care and its determinants of routine maternal and newborn health visits in Nepal: Evidence from a nationally representative household survey

Resham Bahadur Khatri (  rkchettri@gmail.com ) Health Social Science and Development Research Institute, Kathmandu Rajendra Karkee School of Public Health and Community Medicine, BP Koirala Institute of Health Sciences, Dharan, Jo Durham School of Public Health and Social Work, Queensland University of Technology, Brisbane Yibeltal Assefa School of Public Health, Faculty of Medicine, University of Queensland, Brisbane
Why the future of rock mass classification systems requires revisiting their empirical past

Despite recent efforts, digitization in rock engineering still suffers from the difficulty in standardizing and statistically analysing databases that are created by a process of quantification of qualitative assessments. Indeed, neither digitization nor digitalization have to date been used to drive changes to the principles upon which, for example, the geotechnical data-collection process is founded, some of which have not changed in several decades. There is an empirical knowledge gap that cannot be bridged by the use of technology alone. In this context, this paper presents the results of what the authors call a rediscovery of rock mass classification systems, and a critical review of their definitions and limitations in helping engineers to integrate these methods and digital acquisition systems. This discussion has significant implications for the use of technology as a tool to directly determine rock mass classification ratings and for the application of machine learning to address rock engineering problems. Thematic collection: This article is part of the Digitization and Digitalization in engineering geology and hydrogeology collection available at: https://www.lyellcollection. org/cc/digitization-and-digitalization-in-engineering-geology-and-hydrogeology
Excess dietary fructose does not alter gut microbiota or permeability in humans: A pilot randomized controlled study

Abstract Introduction: Non-alcoholic fatty liver disease (NAFLD) is an increasing cause of chronic liver disease that accompanies obesity and the metabolic syndrome. Excess fructose consumption can initiate or exacerbate NAFLD in part due to a consequence of impaired hepatic fructose metabolism. Preclinical data emphasized that fructose-induced altered gut microbiome, increased gut permeability, and endotoxemia play an important role in NAFLD, but human studies are sparse. The present study aimed to determine if two weeks of excess fructose consumption significantly alters gut microbiota or permeability in humans. Methods: We performed a pilot double-blind, cross-over, metabolic unit study in 10 subjects with obesity (body mass index [BMI] 30–40 mg/kg/m2). Each arm provided 75 grams of either fructose or glucose added to subjects’ individual diets for 14 days, substituted isocalorically for complex carbohydrates, with a 19-day wash-out period between arms. Total fructose intake provided in the fructose arm of the study totaled a mean of 20.1% of calories. Outcome measures included fecal microbiota distribution, fecal metabolites, intestinal permeability, markers of endotoxemia, and plasma metabolites. Results: Routine blood, uric acid, liver function, and lipid measurements were unaffected by the fructose intervention. The fecal microbiome (including Akkermansia muciniphilia), fecal metabolites, gut permeability, indices of endotoxemia, gut damage or inflammation, and plasma metabolites were essentially unchanged by either intervention. Conclusions: In contrast to rodent preclinical findings, excess fructose did not cause changes in the gut microbiome, metabolome, and permeability as well as endotoxemia in humans with obesity fed fructose for 14 days in amounts known to enhance NAFLD.
Associations of percent energy intake from total, animal and plant protein with overweight/obesity and underweight among adults in Addis Ababa, Ethiopia.

OBJECTIVE This study investigated associations between types and food sources of protein with overweight/obesity and underweight in Ethiopia. DESIGN We conducted a cross-sectional dietary survey using a non-quantitative food frequency questionnaire. Linear regression models were used to assess associations between percent energy intake from total, animal, and plant protein and body mass index (BMI). Logistic regression models were used to examine associations of percent energy intake from total, animal, and plant protein and specific protein food sources with underweight and overweight/obesity. SETTING Addis Ababa, Ethiopia. PARTICIPANTS 1,624 Ethiopian adults (992 women and 632 men) aged 18-49 years in selected households sampled using multi-stage random sampling from five sub-cities of Addis Ababa, Ethiopia. RESULTS Of the surveyed adults, 31% were overweight or obese. The majority of energy intake was from carbohydrate with only 3% from animal protein. In multivariable-adjusted linear models, BMI was not associated with percent energy from total, plant or animal protein. Total and animal protein intake were both associated with lower odds of overweight/obesity (Odds Ratio [OR] per 1% energy increment of total protein 0.92; 95% CI: 0.86, 0.99; P=0.02; OR per 1% energy increment of animal protein 0.89; 95% CI: 0.82, 0.96; P=0.004) when substituted for carbohydrate and adjusted for sociodemographic covariates. CONCLUSIONS Increasing proportion of energy intake from total protein or animal protein in place of carbohydrate could be a strategy to address overweight and obesity in Addis Ababa; longitudinal studies are needed to further examine this potential association.
MCMV-based vaccine vectors expressing full-length viral proteins provide long-term humoral immune protection upon a single-shot vaccination

Global pandemics caused by influenza or coronaviruses cause severe disruptions to public health and lead to high morbidity and mortality. There remains a medical need for vaccines against these pathogens. CMV (cytomegalovirus) is a β-herpesvirus that induces uniquely robust immune responses in which remarkably large populations of antigen-specific CD8 + T cells are maintained for a lifetime. Hence, CMV has been proposed and investigated as a novel vaccine vector for expressing antigenic peptides or proteins to elicit protective cellular immune responses against numerous pathogens. We generated two recombinant murine CMV (MCMV) vaccine vectors expressing hemagglutinin (HA) of influenza A virus (MCMV HA ) or the spike protein of severe acute respiratory syndrome coronavirus 2 (MCMV S ). A single injection of MCMVs expressing either viral protein induced potent neutralizing antibody responses, which strengthened over time. Importantly, MCMV HA -vaccinated mice were protected from illness following challenge with the influenza virus, and we excluded that this protection was due to the effects of memory T cells. Conclusively, we show here that MCMV vectors induce not only long-term cellular immunity but also humoral responses that provide long-term immune protection against clinically relevant respiratory pathogens.
Victimisation of Married Pakistani Women from Three Types of Aggression Perpetrated by their Mother-in-Law, and Mental Health Concomitants

The aim of the study was to investigate victimisation of married women from aggression perpetrated by the mothers-in-law, and its psychological concomitants. A questionnaire was completed by 569 married women in Pakistan. The mean age was 31.4 years (SD 9.1). Mothers-in-law perpetrated more verbal and indirect aggression than physical aggression against their daughters-in-law. Anxiety, depression, obsessive compulsive symptoms, and somatisation were all associated with aggression perpetrated by the mothers-in-law. The mothers-in-law had significantly more often than the husbands perpetrated indirect aggression against the daughters-in-law, while the husbands had perpetrated both physical and verbal aggression against their wife significantly more often than the mothers-in-laws. It was concluded that aggression perpetrated by mothers-in-law is a significant problem and associated with mental health problems in married Pakistani women.