bluuebunny/crossref_metadata_2025_split huggingface dataset:
Faculty readiness for online teaching at Imam Abdulrahman Bin Faisal University during the COVID-19 crisis: a cross-sectional study
Authors: Almahasheer Muneerah B. , Al Rubaish Abdullah , Alkadi Abdullah , Abdellatif Mahmoud A. , Ravinayagam Vijaya , Wael Fateh Assaf, , Marimuthu Palanivel Rubavathi , Alomair Nuhad A. 
Published: January 2022

Background: The outbreak of the COVID-19 pandemic has affected the education sector around the world. In order to control the spread of the virus, eLearning practice has been introduced in Saudi higher education. Such online communication has become an important tool to narrow the teaching practice gap. This study assessed the characteristics of eLearning and distance learning and the inclination of Imam Abdulrahman BinFaisal University (IAU) faculty members in terms of skills, and managing classes and tests using online learning tools. Methods: A QuestionPro questionnaire with 22 questions on eLearning experience, training experience, and skills and knowledge in the educational process of IAU teaching faculty was conducted through the online university e-mail domain. The questionnaire was sent to the IAU’s teaching faculty. The questionnaire’s reliability was studied using Cronbach’s a coefficient. The criterion value was statistically studied using the KMO (Kaiser-Meyer-Olkin) and Bartlett’s test. The variables associated with the present survey model were analysed using Structural Equation Modelling (SEM). Results: The study showed positive responses and readiness (skills and abilities) and the effectiveness of IAU’s faculty members to perform e-learning activities during COVID-19. IAU faculty received a strong positive response, and the respondents were also impressed with and agreed on trainer knowledge, session management, communication and expertise on training topics. Conclusions: The positive response indicates the readiness of IAU to provide the necessary support (tools, information and updates) required for a successful online educational process.
Decision Forest: A Nonparametric Approach to Modeling Irrational Choice
Authors: Chen Yi-Chun , Mišić Velibor V. 
Published: January 2022

Customer behavior is often assumed to follow weak rationality, which implies that adding a product to an assortment will not increase the choice probability of another product in that assortment. However, an increasing amount of research has revealed that customers are not necessarily rational when making decisions. In this paper, we propose a new nonparametric choice model that relaxes this assumption and can model a wider range of customer behavior, such as decoy effects between products. In this model, each customer type is associated with a binary decision tree, which represents a decision process for making a purchase based on checking for the existence of specific products in the assortment. Together with a probability distribution over customer types, we show that the resulting model—a decision forest—is able to represent any customer choice model, including models that are inconsistent with weak rationality. We theoretically characterize the depth of the forest needed to fit a data set of historical assortments and prove that with high probability, a forest whose depth scales logarithmically in the number of assortments is sufficient to fit most data sets. We also propose two practical algorithms—one based on column generation and one based on random sampling—for estimating such models from data. Using synthetic data and real transaction data exhibiting nonrational behavior, we show that the model outperforms both rational and nonrational benchmark models in out-of-sample predictive ability. This paper was accepted by Chung Piaw Teo, optimization.
Managing Social Responsibility in Multitier Supply Chains
Authors: Huang Lu , Song Jing-Sheng , Swinney Robert 
Published: January 2022

Problem definition: We study the management of social responsibility in a three-tier supply chain with a tier 2 supplier selling to a tier 1 supplier, in turn selling to a tier 0 buyer. The tier 2 supplier may violate social and environmental standards, resulting in harm to all firms in the supply chain; we analyze the equilibrium allocation of costly effort by each firm to improve responsibility in tier 2. We also examine how pressure from external stakeholders (consumers, nongovernmental organizations, and governments) influences the optimal level of responsibility. Academic/practical relevance: Recently, there have been numerous serious responsibility violations in tiers 2+ of multinational supply chains, leading to significant negative consequences for firms and society; understanding how best to manage such violations is of practical importance to multiple stakeholders. Methodology: We employ a game theoretic model wherein each firm in the supply chain optimizes its responsibility efforts to maximize its own profit and study the implications of this decentralized optimization for the overall supply chain. Results: Under the conditions of our model, the buyer’s optimal strategy is one of extremes, consisting of direct control (only tier 0 works with tier 2), delegation (only tier 1 works with tier 2), or no effort (neither firm works with tier 2); we determine when each is optimal and discuss key drivers of the optimality of these extreme strategies. We further find that increasing some types of external pressure can backfire, leading to a lower level of responsibility. Managerial implications: For firms using multitier supply chains, we show how to manage risk by choosing between different responsibility management strategies. For external stakeholders seeking to encourage responsibility, we provide insights on how to achieve this while avoiding “backfiring.” For researchers, we provide a modeling framework to study responsibility and risk management problems in multitier supply chains. History: This paper has been accepted for the Manufacturing & Service Operations Management Special Section on Responsible Research in Operations Management. Supplemental Material: The online supplement is available at https://doi.org/10.1287/msom.2021.1063 .
Nano-antenna array for high efficiency sunlight harvesting
Authors: Midrio Michele , Pierantoni Luca , Boscolo Stefano , Truccolo Davide , Mencarelli Davide 
Published: January 2022

Solar rectennas are promising devices for energy harvesting. Capability of rectennas to convert incident light into useful energy depends on the antenna efficiency, that is the ratio between the power transferred to the load vs the incoming power. In this work, we first emphasize that for the efficiency to be calculated accurately, antennas need to be treated as receiving devices, not as transmitting ones. Then, we propose an arrangement of antennas that differs from those published so far in three respects: (1) the proposed arrangement is formed by an array of nano-antennas with sub-wavelength inter-element spacing, (2) it comprises a reflecting mirror, and (3) it allows for dual polarization operation. Through numerical simulations, we show that the small lattice pitch we use is responsible for frequency flattening of the lattice impedance over the whole solar spectrum, eventually allowing for excellent matching with the antennas’ loads. Also, the small pitch allows for a smooth dependence of the receiving efficiency on the angle of incidence of sunlight. Finally, we show numerically that the reflecting mirror also allows for an almost complete cancellation of light scattered by the receiving antennas. The final result is a polarization insensitive receiving theoretical efficiency larger than 70% over the whole 300-3000 nm spectral range, with a less than 10% energy wasting due to back-scattering of sunlight.
Hospitalization costs for COVID-19 in Ethiopia: Empirical data and analysis from Addis Ababa’s largest dedicated treatment center
Authors: Memirie Solomon Tessema , Yigezu Amanuel , Zewdie Samuel Abera , Mirkuzie Alemnesh H. , Bolongaita Sarah , Verguet Stéphane 
Published: January 2022

Background
The COVID-19 pandemic has caused profound health, economic, and social disruptions globally. We assessed the full costs of hospitalization for COVID-19 disease at Ekka Kotebe COVID-19 treatment center in Addis Ababa, the largest hospital dedicated to COVID-19 patient care in Ethiopia.

Methods and findings
We retrospectively collected and analysed clinical and cost data on patients admitted to Ekka Kotebe with laboratory-confirmed COVID-19 infections. Cost data included personnel time and salaries, drugs, medical supplies and equipment, facility utilities, and capital costs. Facility medical records were reviewed to assess the average duration of stay by disease severity (either moderate, severe, or critical). The data collected covered the time-period March-November 2020. We then estimated the cost per treated COVID-19 episode, stratified by disease severity, from the perspective of the provider. Over the study period there were 2,543 COVID-19 cases treated at Ekka Kotebe, of which, 235 were critical, 515 were severe, and 1,841 were moderate. The mean patient duration of stay varied from 9.2 days (95% CI: 7.6–10.9; for moderate cases) to 19.2 days (17.9–20.6; for critical cases). The mean cost per treated episode was USD 1,473 (95% CI: 1,197–1,750), but cost varied by disease severity: the mean cost for moderate, severe, and critical cases were USD 1,266 (998–1,534), USD 1,545 (1,413–1,677), and USD 2,637 (1,788–3,486), respectively.

Conclusions
Clinical management and treatment of COVID-19 patients poses an enormous economic burden to the Ethiopian health system. Such estimates of COVID-19 treatment costs inform financial implications for resource-constrained health systems and reinforce the urgency of implementing effective infection prevention and control policies, including the rapid rollout of COVID-19 vaccines, in low-income countries like Ethiopia.
Views of medical residents on a research training program: A qualitative study
Authors: Abi Khalil Pamela , Honein-Abou Haidar Gladys , El Achi Dina , Al-Hakim Lara , Tamim Hani , Akl Elie A. 
Published: January 2022

Introduction
The American University of Beirut Medical Center (AUBMC) developed the Fellowship and Residency Research Program (FRRP) to provide residents and clinical fellows with a supervised and structured research experience. The objective of this study was to explore the views of FRRP participants about the training program and how to enhance it.

Methods
In 2018, we conducted a qualitative study targeting residents where we invited potential participants through email and via snowball sampling. We continued the data collection until we reached data saturation with 21 participants (N = 21) and used thematic analysis to identify emerging themes.

Results
Thematic analysis generated four emerging themes: one related to the expectations of residents, while the remaining three themes related to how the program is working to meet those expectations, specifically: coordination, mentorship, and capacity building. For these three latter themes, we discussed the strengths and challenges related to each. In terms of coordination, few residents complained that the deadlines to submit deliverables are not evenly distributed across the years. In terms of mentorship, participants appreciated the flexibility in choosing the mentor. In terms of capacity building activities, participants found the lecture series, both real time and virtual, to be helpful. Finally, participants pointed out that the FRRP program should be mandatory.

Discussion
To provide residents and clinical fellows with a supervised and structured research experience, we have built on our findings to introduce several changes to our program such as ensuring the availability and commitment of faculty mentors, and providing capacity building activities to the program participants.
The epidemiology, treatment patterns, healthcare utilizations and costs of Acute Myeloid Leukaemia (AML) in Taiwan
Authors: Huang Huai-Hsuan , Chen Chieh-Min , Wang Chen-Yu , Hsu William Wei-Yuan , Chen Ho-Min , Ko Bor-Sheng , Hsiao Fei-Yuan 
Published: January 2022

Backgrounds
An increasing incidence of Acute Myeloid Leukaemia (AML) has been reported in several Western countries. However, the epidemiology of AML in Asia is very limited. According to the National Comprehensive Cancer Network (NCCN) guideline of AML, a range of conventional therapy options is available to AML patients. Nevertheless, different treatment strategies may result in diverse healthcare utilization and costs. Understanding the treatment patterns, healthcare utilization and costs of AML would thus be essential for clinicians and policymakers to optimize the treatment strategies of AML.

Objectives
The objective of this study was to investigate the incidence, treatment patterns, healthcare utilization and costs of AML in Taiwan using a nationwide population database.

Methods
We retrospectively identified AML patients diagnosed from 2006 to 2015 from the Taiwan Cancer Registry Database (TCRD) and estimated the epidemiology of AML in Taiwan. The TCRD was linked to National Health Insurance Research Database (NHIRD) to collect the treatment patterns and health care utilization. Patients diagnosed with AML from 2011 to 2015 were further identified to analyze treatment patterns, healthcare utilization and costs.

Results
The crude annual incidence of AML increased from 2.78 to 3.21 cases per 100,000 individuals from 2006 to 2015. However, the age-standardized rate (ASRs) of AML slightly declined from 2.47 to 2.41 cases per 100,000 individuals in the same period. Among 2,179 AML patients who received induction therapy (median age: 56 years), most of them (n = 1744; 80.04%) received standard-dose cytarabine (SDAC) regimen. The remaining 162 patients received high dose cytarabine (HDAC) and 273 patients received non-standard dose cytarabine (N-SDAC) regimen as the induction therapy. The median medical costs in our study for patients treated with chemotherapy alone was $42,271 for HDAC, $36,199 for SDAC and $36,250 for N-SDAC. For those who received hematopoietic stem cell transplantation (HSCT) after induction therapy, their median medical costs were $78,876 for HDAC, $78,593 for SDAC and $79,776 for N-SDAC.

Conclusions
This study is the first population-based study conducted in Asia to provide updated and comprehensive information on epidemiology, treatment patterns and healthcare resource utilization and costs of AML.
The last stretch: Barriers to and facilitators of full immunization among children in Nepal’s Makwanpur District, results from a qualitative study
Authors: Paul Alicia M. , Nepal Shraddha , Upreti Kamana , Lohani Jeevan , Rimal Rajiv N. 
Published: January 2022

Background
Approximately 35% of Nepal’s children have not received all recommended vaccines, and barriers to immunization exist on both the demand- (i.e., access, affordability, acceptance) and supply- (i.e., logistics, infrastructure) sides.

Objective
This article describes a formative study to understand the barriers to and facilitators of immunization in Makwanpur, Nepal from both the demand- and supply-sides.

Methods
Through in-depth interviews, key informant interviews, and focus group discussions (N = 76), we assessed knowledge, attitudes, and experiences with immunization; social norms related to immunization; perceptions of local health facilities; and descriptions of client-provider relationships. Data were analyzed using an iterative, grounded theory approach.

Results
Three major themes emerged, including positive demand of vaccines, lack of mutual trust between service seekers and service providers, and internal and external motivators of vaccine supply. On the demand-side, caregivers reported high levels of immunization-related awareness, knowledge, and acceptance, largely perceived to be due to a generational shift. On the supply-side, providers expressed passion for their work despite lack of support from local authorities and a desire for more training. Between caregivers and providers, lack of mutual trust emerged as a prominent barrier, revealing a cycle of positive service bias.

Conclusions
We identified mutual trust as a key pathway toward reaching full immunization coverage in Nepal and we recommend future interventions adopt an approach which focuses on removing social barriers (i.e., distrust) and structural barriers (i.e., opening hours, neglected infrastructure) to immunization.
The effectiveness and characteristics of mHealth interventions to increase adolescent’s use of Sexual and Reproductive Health services in Sub-Saharan Africa: A systematic review
Authors: Onukwugha Franklin I. , Smith Lesley , Kaseje Dan , Wafula Charles , Kaseje Margaret , Orton Bev , Hayter Mark , Magadi Monica 
Published: January 2022

Background
mHealth innovations have been proposed as an effective solution to improving adolescent access to and use of Sexual and Reproductive Health (SRH) services; particularly in regions with deeply entrenched traditional social norms. However, research demonstrating the effectiveness and theoretical basis of the interventions is lacking.

Aim
Our aim was to describe mHealth intervention components, assesses their effectiveness, acceptability, and cost in improving adolescent’s uptake of SRH services in Sub-Saharan Africa (SSA).

Methods
This paper is based on a systematic review. Twenty bibliographic databases and repositories including MEDLINE, EMBASE, and CINAHL, were searched using pre-defined search terms. Of the 10, 990 records screened, only 10 studies met the inclusion criteria. The mERA checklist was used to critically assess the transparency and completeness in reporting of mHealth intervention studies. The behaviour change components of mHealth interventions were coded using the taxonomy of Behaviour Change Techniques (BCTs). The protocol was registered in the ‘International Prospective Register for Systematic Reviews’ (PROSPERO-CRD42020179051).

Results
The results showed that mHealth interventions were effective and improved adolescent’s uptake of SRH services across a wide range of services. The evidence was strongest for contraceptive use. Interventions with two-way interactive functions and more behaviour change techniques embedded in the interventions improved adolescent uptake of SRH services to greater extent. Findings suggest that mHealth interventions promoting prevention or treatment adherence for HIV for individuals at risk of or living with HIV are acceptable to adolescents, and are feasible to deliver in SSA. Limited data from two studies reported interventions were inexpensive, however, none of the studies evaluated cost-effectiveness.

Conclusion
There is a need to develop mHealth interventions tailored for adolescents which are theoretically informed and incorporate effective behaviour change techniques. Such interventions, if low cost, have the potential to be a cost-effective means to improve the sexual and reproductive health outcomes in SSA.
Uterine prolapse and associated factors among reproductive-age women in south-west Ethiopia: A community-based cross-sectional study
Authors: Badacho Abebe Sorsa , Lelu Mengistu Auro , Gelan Zegeye , Woltamo Deginesh Dawit 
Published: January 2022

Background
Uterine prolapse is an important but neglected public health problem that causes maternal morbidity and mortality in women of reproductive age in low- and middle-income countries, including Ethiopia. However, little data are available concerning uterine prolapse in Ethiopia. The objective of this study was to assess the prevalence of and factors associated with uterine prolapse in women of reproductive age in Ethiopia.

Methods
A community-based cross-sectional study was conducted in Loma Woreda, Dawro, south-west Ethiopia, in November and December 2019. Four hundred and twenty-two randomly selected women of reproductive age participated in the study. Face-to-face interviews with a pre-structured questionnaire collected data, and diagnoses were made clinically. Epi Data v3.2.1 and SPSS v24 were used for data entry, processing, and analysis. Binary logistic regression was used to determine associations between dependent and independent variables. Variables with P-values less than 0.25 in bivariate logistic regression were further examined using multivariate logistic regression to investigate associations between the dependent variable and independent variables.

Results
The mean age of respondents was 35.4 ±7.994 years. The prevalence of symptomatic and anatomical uterine prolapse was 6.6% (28) and 5.9% (25), respectively. The prevalence of anatomical prolapse was used as a reference when determining associated factors. Age at first marriage (Adjusted Odd Ratio (AOR): 0.25, 95%CI 0.07, 0.89), place of delivery (AOR: 3.33, 95%CI 1.21, 9.13), birth attendant-assisted delivery (AOR 0.21; 95%CI 0.06, 0.71), and history of abortion (AOR: 2.94, 95%CI 1.08, 7.97) were found significantly and independently associated with the prevalence of uterine prolapse.

Conclusion
Uterine prolapse is common in women of reproductive age. Age at first marriage, place of delivery, birth attendant-assisted delivery, and history of abortion were independent predictors of the prevalence of uterine prolapse. We recommend that the health system link primary health care to hospital-set for uterine prolapse treatment programs. Health institution delivery should be encouraged by the local government. Early marriage and unwanted pregnancy need to be prevented through appropriate strategies.
Pregnancy Risk Assessment Monitoring System for Dads: A piloted randomized trial of public health surveillance of recent fathers’ behaviors before and after infant birth
Authors: Garfield Craig F. , Simon Clarissa D. , Stephens Fay , Castro Román Patricia , Bryan Michael , Smith Ruben A. , Kortsmit Katherine , Salvesen von Essen Beatriz , Williams Letitia , Kapaya Martha , Dieke Ada , Barfield Wanda , Warner Lee 
Published: January 2022

BackgroundBecoming a father impacts men’s health and wellbeing, while also contributing to the health and wellbeing of mothers and children. There is no large-scale, public health surveillance system aimed at understanding the health and behaviors of men transitioning into fatherhood. The purpose of this study was to describe piloted randomized approaches of a state-based surveillance system examining paternal behaviors before and after their infant’s birth to better understand the health needs of men and their families during the transition to parenthood.MethodsDuring October 2018–July 2019, 857 fathers in Georgia were sampled 2–6 months after their infant’s birth from birth certificates files and surveyed via mail, online or telephone, in English or Spanish, using two randomized approaches: Indirect-to-Dads and Direct-to-Dads. Survey topics included mental and physical health, healthcare, substance use, and contraceptive use.FindingsWeighted response rates (Indirect-to-Dads, 33%; Direct-to-Dads, 31%) and population demographics did not differ by approach. Respondents completed the survey by mail (58%), online (28%) or telephone (14%). Among 266 fathers completing the survey, 55% had a primary care physician, and 49% attended a healthcare visit for themselves during their infant’s mother’s pregnancy or since their infant’s birth. Most fathers were overweight or had obesity (70%) while fewer reported smoking cigarettes (19%), binge drinking (13%) or depressive symptoms (10%) since their infant’s birth.ConclusionsThis study tests a novel approach for obtaining population-based estimates of fathers’ perinatal health behaviors, with comparable response rates from two pragmatic approaches. The pilot study results quantify a number of public health needs related to fathers’ health and healthcare access.