bluuebunny/crossref_metadata_2025_split huggingface dataset:
Parents’ reasons for nonadherence to referral to follow-up eye care for schoolchildren who failed school-based vision screening in Cross River State, Nigeria—A descriptive qualitative study
Authors: Lohfeld Lynne , Graham Christine , Ebri Anne Effiom , Congdon Nathan , Chan Ving Fai 
Published: November 2021

BackgroundUncorrected refractive error (URE) is a major cause of vision impairment in children worldwide. Cases are often detected through a school-based vision screening program and then treated in a follow-up appointment. This requires parents or guardians (‘parents’) to adhere to referrals for the eye exam and care plan. We aim to understand the reasons for parents’ referral non-adherence in Cross River State, Nigeria, using qualitative methods.MethodsTen focus groups were held with parents who had not adhered to the referral for a follow-up eye examination. Participants were recruited with help from staff in schools hosting the vision screening programme. Interviews were conducted using a semi-structured interview guide, audio taped and transcribed verbatim. After identifying relevant quotes, the researchers labelled each one with a descriptive code/subcode label. Then they clustered the data into categories and overarching themes.ResultsForty-four parents participated in 10 focus group discussions with 28 women and 16 men. Three themes and participated in the focus group discussions with 28 women (63%). Twelve themes were generated. The three megathemes were Modifiable Factors (with 4 themes), Contextual Factors (with 6 themes), and Recommendations (with 2 themes).ConclusionParticipants identified modifiable barriers that make it difficult for parents to adhere to a referral for a follow-up eye exam. These include not believing their child has a vision problem or the screening test, and issues with the referral letter. They also described important contextual factors such as poverty, logistical problems, parental attitudes towards their children and beliefs about appropriate care. Many of these issues could be addressed by following their recommendation to educate the public on the importance of child eye care and correct parents’ misconceptions. These themes will be used by the Nigerian government to enhance and scale up its child eye health programme.
Factors affecting weekday-to-weekend sleep differences among Korean adolescent students: Focus on extracurricular tutoring time
Authors: Noh Jin-Won , Kwon Young Dae , Cheon Jooyoung , Kim Jinseok 
Published: November 2021

Objectives
Discrepancy in weekday-weekend sleep induces negative effects on physical health, obesity, psychological disorders, and academic performance; this particularly affects adolescent students through extracurricular tutoring, including evening self-study, private tutoring, and home studies. The present research aimed to clarify sociodemographic and economic factors, including extracurricular tutoring time, associated with weekday-to-weekend sleep differences using longitudinal data.

Study design
Data from the Korean Children and Youth Panel Survey (KCYPS) data were analyzed. Weekday-to-weekend sleep differences and extracurricular tutoring, as well as other covariates, were measured using adolescent’s self-report questionnaires. Multilevel regression and structural equation modeling (SEM) of repeated measures were used to test the hypothesized relationship between variables.

Results
The time spent in weekly extracurricular tutoring was negatively associated with weekday-to-weekend sleep differences. However, increased tutoring time was positively associated with bedtime, and bedtime was in turn positively associated with differences in Korean adolescents’ weekday-to-weekend sleep patterns. The SEM analysis result showed a significant indirect effect of tutoring time on sleep differences via bedtime.

Conclusions
Limiting weekly extracurricular tutoring time is important to early bedtime and reducing weekday-to-weekend sleep pattern differences. Policymakers should develop alternatives to private tutoring to improve the sleep duration and reduce weekday-to-weekend sleep differences among adolescents.
Inhibition of endogenous ouabain by atrial natriuretic peptide is a guanylyl cyclase independent effect
Authors: Tegin Gulay , Gao Yonglin , Hamlyn John M. , Clark Barbara J. , El-Mallakh Rif S. 
Published: November 2021

BackgroundEndogenous ouabain (EO) and atrial natriuretic peptide (ANP) are important in regulation of sodium and fluid balance. There is indirect evidence that ANP may be involved in the regulation of endogenous cardenolides.MethodsH295R are human adrenocortical cells known to release EO. Cells were treated with ANP at physiologic concentrations or vehicle (0.1% DMSO), with or without guanylyl cyclase inhibitor 1,2,4 oxadiazolo[4,3-a]quinoxalin-1-one (ODQ). Cyclic guanosine monophosphate (cGMP), the intracellular second messenger of ANP, was measured by a chemiluminescent immunoassay and EO was measured by radioimmunoassay of C18 extracted samples.ResultsEO secretion is inhibited by ANP treatment, with the most prolonged inhibition (90 min vs ≤ 60 min) occurring at physiologic ANP concentrations (50 pg/mL). Inhibition of guanylyl cyclase with ODQ, also reduces EO secretion. The inhibitory effects on EO release in response to cotreatment with ANP and ODQ appeared to be additive.ConclusionsANP inhibits basal EO secretion, and it is unlikely that this is mediated through ANP-A or ANP-B receptors (the most common natriuretic peptide receptors) or their cGMP second messenger; the underlying mechanisms involved are not revealed in the current studies. The role of ANP in the control of EO synthesis and secretionin vivorequires further investigation.
Availability, prices and affordability of essential medicines: A cross-sectional survey in Hanam province, Vietnam
Authors: Nguyen Huong Thi Thanh , Dinh Dai Xuan , Nguyen Trung Duc , Nguyen Van Minh 
Published: November 2021

Objective
To measure medicines’ prices, availability, and affordability in Hanam, Vietnam.

Methods
The standardized methodology developed by the World Health Organization (WHO) and Health Action International was used to survey 30 essential medicines (EMs) in 30 public health facilities and 35 private medicine outlets in 2020. The availability of medicine was computed as the percentage of health facilities in which this medicine was found on the data-collection day. International reference prices (IRPs) from Management Sciences for Health (2015) were used to compute Median Price Ratio (MPR). The affordability of treatments for common diseases was computed as the number of days’ wages of the lowest-paid unskilled government worker needed to purchase medicines prescribed at a standard dose. Statistic analysis was done using R software version 4.1.1.

Results
The mean availability of originator brands (OBs) and lowest-priced generics (LPGs) was 0.7%, 63.2% in the public sector, and 13.7%, 47.9% in the private sector, respectively. In private medicine outlets, the mean availability of both OBs and LPGs in urban areas was significantly higher than that in rural areas (p = 0.0013 and 0.0306, respectively). In the public sector, LPGs’ prices were nearly equal to their IRPs (median MPRs = 0.95). In the private medicine outlets, OBs were generally sold at 6.24 times their IRPs while this figure for LPGs was 1.65. The affordability of LPGs in both sectors was good for all conditions, with standard treatments costing a day’s wage or less.

Conclusion
In both sectors, generic medicines were the predominant product type available. The availability of EMs was fairly high but still lower than WHO’s benchmark. A national-scale study should be conducted to provide a comprehensive picture of the availability, prices, and affordability of EMs, thereby helping the government to identify the urgent priorities and improving access to EMs in Vietnam.
Transcutaneous spinal cord stimulation and motor responses in individuals with spinal cord injury: A methodological review
Authors: Taylor Clare , McHugh Conor , Mockler David , Minogue Conor , Reilly Richard B. , Fleming Neil 
Published: November 2021

Background
Transcutaneous spinal cord stimulation (tSCS) is a non-invasive modality in which electrodes can stimulate spinal circuitries and facilitate a motor response. This review aimed to evaluate the methodology of studies using tSCS to generate motor activity in persons with spinal cord injury (SCI) and to appraise the quality of included trials.

Methods
A systematic search for studies published until May 2021 was made of the following databases: EMBASE, Medline (Ovid) and Web of Science. Two reviewers independently screened the studies, extracted the data, and evaluated the quality of included trials. The electrical characteristics of stimulation were summarised to allow for comparison across studies. In addition, the surface electromyography (EMG) recording methods were evaluated.

Results
A total of 3753 articles were initially screened, of which 25 met the criteria for inclusion. Studies were divided into those using tSCS for neurophysiological investigations of reflex responses (n = 9) and therapeutic investigations of motor recovery (n = 16). The overall quality of evidence was deemed to be poor-to-fair (10.5 ± 4.9) based on the Downs and Black Quality Checklist criteria. The electrical characteristics were collated to establish the dosage range across stimulation trials. The methods employed by included studies relating to stimulation parameters and outcome measurement varied extensively, although some trends are beginning to appear in relation to electrode configuration and EMG outcomes.

Conclusion
This review outlines the parameters currently employed for tSCS of the cervicothoracic and thoracolumbar regions to produce motor responses. However, to establish standardised procedures for neurophysiological assessments and therapeutic investigations of tSCS, further high-quality investigations are required, ideally utilizing consistent electrophysiological recording methods, and reporting common characteristics of the electrical stimulation administered.
Factors that motivate men who have sex with men in Berlin, Germany, to use or consider using HIV pre-exposure prophylaxis—A multi-methods analysis of data from a multicentre survey
Authors: Gaskins Matthew , Sammons Mary Katherine , Kutscha Frank , Nast Alexander , Werner Ricardo Niklas 
Published: November 2021

Background
While our knowledge of what motivates men who have sex with men (MSM) to use HIV pre-exposure prophylaxis (PrEP) has grown in recent years, quantitative survey-based studies have not asked MSM explicitly to name their motivations. We did so using a qualitative open-ended question and aimed to categorise the responses and explore whether these were related to where MSM were located along a conceptual continuum of PrEP care.

Methods
In a multicentre survey examining knowledge and use of PrEP among MSM in Berlin, Germany, we additionally asked an open-ended question about motivations for using or considering PrEP. Data were collected from 10/2017-04/2018. One researcher developed a thematic framework deductively from the literature and another did so inductively from the free-text data, and a merged framework was used to code responses independently. We used Fisher’s exact test to assess whether the frequency of motivations differed significantly between respondents using or considering PrEP.

Results
Of 875 questionnaires, 473 were returned and 228 contained a free-text response. Motivations in the following categories were reported: (1) Safety/protection against HIV (80.2% of participants, including general safety; additional protection to condoms), (2) Mental well-being and quality of life (23.5%, including reduced anxiety; better quality of life), (3) Condom attitudes (18.9% intent not to use condoms), (4) Expectations about sexuality (14.4%, including worry-free sex or more pleasurable sex, with explicit mention of sex or sexuality), (5) Norms/social perspectives (0.8%). The difference in frequencies of motivations between those using or considering PrEP was not statistically significant.

Conclusions
Safety and protection against HIV, particularly having additional protection if condoms fail, were the most common motivations for using or considering PrEP, followed by mental well-being and quality of life. Many respondents reported several motivations, and responses overall were heterogeneous. This suggests that approaches to increase PrEP uptake that focus exclusively on its effectiveness in preventing HIV are unlikely to be as successful as a holistic approach that emphasises multiple motivations and how these fit into the broader sexual and psychological health of MSM.
COVID-19 preventive practices during intrapartum care- adherence and barriers in Ethiopia; a multicenter cross- sectional study
Authors: Kebede Azmeraw Ambachew , Taye Birhan Tsegaw , Wondie Kindu Yinges , Tiguh Agumas Eskezia , Eriku Getachew Azeze , Mihret Muhabaw Shumye 
Published: November 2021

Background
Coronavirus disease 19 (COVID-19) is a newly emerging pandemic affecting more than 120 million people globally. Compliance with preventive practices is the single most effective method to overcome the disease. Although several studies have been conducted regarding COVID-19, data on healthcare provider’s adherence to COVID-19 preventive practices during childbirth through direct observation is limited. Therefore, this study aimed to assess healthcare provider’s adherence to COVID-19 preventive practices during childbirth in northwest Ethiopia.

Methods
A multicenter study was conducted at hospitals in northwest Ethiopia among 406 healthcare providers from November 15 /2020 to March 10 /2021. A simple random sampling technique was employed to select the study subjects. Data were collected via face-to-face interviews and direct observation using a structured questionnaire and standardized checklist respectively. EPI INFO version 7.1.2 and SPSS 25 were used for data entry and analysis respectively. Binary logistic regression analyses were undertaken to identify associated factors. The level of significance was decided based on the adjusted odds ratio (AOR) with a 95% confidence interval at a p-value of ≤ 0.05.

Results
The proportion of healthcare providers having good adherence to COVID-19 preventive practices during intrapartum care was 46.1% (95% CI: 41.2, 50.9). Healthcare providers who had job satisfaction (AOR = 3.18; 95% CI: 1.64, 6.13), had smartphone and/or computer (AOR = 2.75; 95% CI: 1.62, 4.65), ever received training on infection prevention (AOR = 3.58; 95% CI: 2.20, 5.84), earned higher monthly income (AOR = 2.15; 95% CI: 1.30, 3.57), and worked at health facility in the urban area (AOR = 1.72; 95% CI: 1.07, 2.77) had a significant association with adherence to COVID-19 preventive practices. Moreover, the most commonly mentioned barriers for not adhering to the preventive practice of COVID-19 were crowdedness of the delivery room, non-availability of personal protective equipment, and shortage of alcohol or sanitizer.

Conclusion
The healthcare provider’s adherence to COVID-19 preventive practices was low. Hence, stakeholders need to pay special attention to increase healthcare provides’ job satisfaction. In addition, the provision of continuous training on infection prevention would be helpful. Furthermore, personal protective equipment, alcohol, and sanitizer supply must be provided for healthcare providers.
The Impact of Mask Usage on COVID-19 Deaths: Evidence from US Counties Using a Quasi-Experimental Approach
Authors: Welsch David 
Published: November 2021

Abstract
I examine the relationship between mask usage and COVID-19 deaths at the county level. When examining this relationship, even the direction caused by the potential endogeneity bias is unclear. In one direction, characteristics that are known to correlate with a larger amount of potential COVID-19 deaths, such as an older population, may make people more likely to wear masks. This will cause a bias that makes mask usage look less effective than it truly is. In the other direction, areas with higher risk tolerances may have less mask usage, but may at the same time be engaging in other behavior that puts them at higher risk for contracting COVID-19. This will cause a bias that makes mask usage look more effective than it truly is. The identification approach exploits a large set of controls and employs percentage of vote for Donald Trump in the 2016 election as an instrumental variable for mask usage. The main finding is that a one percentage point increase in the number of individuals who say they often or frequently wear a mask when within six feet of people will reduce COVID-19 deaths in a county by 10.5%, or six deaths in the average county.
The Relationship between Classroom type (Single-Sex or Mixed-Sex) and the Academic Achievements in Mathematics among Students belonging to the National-Religious Society in Israel
Authors: Skital Ezri , Ţîru Laurenţiu-Gabriel 
Published: November 2021

Abstract
Many studies have indicated that single-sex classrooms promote female students’ self-confidence and achievement in various professions, including professions where their rate of employment is low, such as mathematics and other exact sciences. The purpose of the present study is to examine the relationship between single-sex classrooms and math achievements among both female and male students. The study population included 608 students learning in the fifth-ninth grades, who attended state-religious schools in the southern region of Israel and came from families who had similar socioeconomic status. The students answered a short demographic questionnaire and their math teacher filled out each student’s score achieved in the regional math summative assessment. The findings showed no relationship between classroom type and boys’ achievement in mathematics, while a significant relationship was found between learning in single-sex classroom and higher math achievements among girls in elementary school. In middle school, however, no significant difference was found.
Tacking into the Wind: How Women Entrepreneurs can Sail Through Family-to-Work Conflict to Ensure their Firms’ Entrepreneurial Orientation
Authors: De Clercq Dirk , Kaciak Eugene , Thongpapanl Narongsak (Tek) 
Published: November 2021

Abstract
When women entrepreneurs experience family-to-work conflict, it may discourage them from adopting an entrepreneurial orientation, an effect mediated by work-related emotional exhaustion and moderated by both family-to-work enrichment and family support at home. According to survey data collected among women entrepreneurs in Ghana, negative interferences of family with work can steer women entrepreneurs away from adopting an entrepreneurial orientation for their company, largely because they feel emotionally overextended by their work. However, enrichment of their work, attained through family involvement, can buffer this detrimental effect. The buffering role of family-to-work enrichment in turn is particularly effective when women entrepreneurs receive help on household tasks from other family members. This study accordingly identifies a key mechanism by which family-induced work strain can hamper bold strategic actions by women entrepreneurs—because they feel emotionally drained at work—and details when this mechanism is less prominent, namely, in the presence of relevant family resources.
Gender, Identities, and Material Culture in the Italic Peninsula: Burial Practices and Loom Weights in Perspective
Authors: Esposito Arianna , Pollini Airton 
Published: November 2021

AbstractThis paper discusses the complex relationship between material culture and gender studies from a methodological point of view, with the aim of contributing to discussions in the field of Classical archaeology. First, we provide a few historiographical benchmarks for key epistemological developments, while evidencing the methodological difficulties inherent in the variability of our interpretations of burial practices and data. Then, in a second section, a case study focuses on simple objects of daily life. Discussing approaches inspired by gender studies, and considering the place of loom weights, we wish to tackle the presumption of textile work as an eminently female activity. The aim of this paper is to suggest a more nuanced and fluid approach to gender in relation to material culture.
The Lower Vistula and Its Ice Problems
Authors: Majewski Wojciech 
Published: November 2021

Abstract
In many countries of the northern hemisphere during winter period ice forms appear on various water bodies, which results in significant changes of physical, chemical and ecological conditions. These changes are different in rivers, channels, lakes or once-through reservoirs. On the terrain of Poland ice always caused considerable problems affecting intensive inland navigation and other river use. These problems appeared especially on the Vistula River, which in 17th and 18th century was one of the most navigable rivers in Europe. The Vistula is the largest Polish river, which flows from the south in the Carpathian Mountains to the Baltic Sea in the north. It is the second largest river, after Neva, of the Baltic Sea catchment. The length of the Vistula is 1047 km and its catchment amounts to 194 thousand km2. The predominant part of the Vistula river basin (87%) is now on Polish territory and the remaining (13%) catchment is in Belarus, Ukraine and Slovakia. The course of the Vistula can be divided into three distinctly different sections: upper, middle and lower. These river sections have appropriate catchments with their tributaries. There are hydraulic structures on the main river course and on its tributaries which serve navigation, hydroenergy, flood protection, water supply and recreation. All over the Vistula catchment there are frequent floods during spring and summer time resulting from excessive precipitation but in winter caused by ice phenomena. Numerous flow problems appear especially along the lower Vistula course because of ice phenomena and they result very often in severe flood problems. The Vistula has a very variable time and spatial discharge, because of existing climate conditions over its catchment.
The aim of the paper is to present hydraulic and hydrologic characteristics of the Lower Vistula river with special emphasis on the management of this river section for navigation, hydroenergy, flood protection and water supply in view of ice phenomena appearing there. Information concerning changes of water characteristics due to various water temperatures are presented as well as on the formation of various forms of ice in flowing water. Numerous ice studies were carried out in Poland and especially on the Lower Vistula section as it was very ice prone and where many ice jams and ice-jam floods occurred. A special hydraulic situation existed at the mouth of the Vistula, which caused important floods in the 18th century and resulted in the construction of a special direct channel to the sea (Przekop Wisły) solving flood problems in this area. Information is presented on changes in open channel flow due to the appearance of ice cover and other ice forms. The paper includes ample information on the run, consequences and studies connected with a very important ice-jam-flood on the upper part of Włocławek reservoir in 1982.