bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of the Application of Ultrasound to Homogenize Milk and the Subsequent Pasteurization by Pulsed Electric Field, High Hydrostatic Pressure, and Microwaves
Authors: Astráin-Redín Leire , Skipnes Dagbjørn , Cebrián Guillermo , Álvarez-Lanzarote Ignacio , Rode Tone Mari
Published: March 2023

The efficacy of applying ultrasound (US) as a system to homogenize emulsions has been widely demonstrated. However, research has not yet shown whether the effect achieved by homogenizing milk with US is modified by subsequent pasteurization treatments that use new processing technologies such as pulsed electric fields (PEF), microwaves (MW), and high hydrostatic pressure (HPP). The aim of this study was, therefore, to optimize the application of US for milk homogenization and to evaluate the effect of PEF, HPP, and MW pasteurization treatments on the sensorial, rheological, and microbiological properties of milk throughout its shelf life. To homogenize whole milk, a continuous US system (20 kHz, 0.204 kJ/mL, 100%, 40 °C) was used, and different ultrasonic intensities (0.25, 0.5, and 1.0 kJ/mL) were evaluated. The optimal ultrasonic treatment was selected on the basis of fat globule size distribution and pasteurization treatments by MW (5800 W, 1.8 L/min), PEF (120 kJ/kg, 20 kV/cm) and HPP (600 MPa, 2 min, 10 °C) was applied. The ultrasound intensity that achieved the highest reduction in fat globule size (0.22 ± 0.02 µm) and the most homogeneous distribution was 1.0 kJ/mL. Fat globule size was smaller than in commercial milk (82% of volume < 0.5 µm for US milk versus 97% of volume < 1.2 µm for commercial milk). That size was maintained after the application of the different pasteurization treatments, and the resulting milk had better emulsion stability than commercial milk. After 28 days of storage, no differences in viscosity (4.4–4.9 mPa s) were observed. HPP pasteurization had the greatest impact on color, leading to higher yellowness values than commercial milk. Microbial counts did not vary significantly after 28 days of storage, with counts below 102 CFU/mL for samples incubated at 15 °C and at 37 °C. In summary, the homogenization of milk obtained by US was not affected by subsequent pasteurization processes, regardless of the technology applied (MW, PEF, or HPP). Further research is needed to evaluate these procedures’ effect on milk’s nutritional and functional properties.
Effects of Incorporating Alkaline Hydrogen Peroxide Treated Sugarcane Fibre on The Physical Properties and Glycemic Potency of White Bread
Authors: Binte Abdul Halim Fatin Natasha , Taheri Afsaneh , Abdol Rahim Yassin Zawanah , Chia Kai Feng , Goh Kelvin Kim Tha , Goh Suk Meng , Du Juan
Published: March 2023

The consumption of dietary fibres can affect glycemic power and control diabetes. Sugarcane fibre (SCF) is known as insoluble dietary fibre, the properties of which can be affected by physical, chemical, and enzymatic treatments. In this study, alkaline hydrogen peroxide (AHP) treatments were conducted over time (0.5, 1, 3, and 5 h) at 12.6% (w/v) SCF and the effects on the physicochemical and structural properties of the SCF were evaluated. After making dough and bread with the SCF, with and without AHP treatments, the glycemic responses of the bread samples were evaluated. Shorter durations of AHP treatment (0.5 and 1 h) reduced lignin effectively (37.3 and 40.4%, respectively), whereas AHP treatment at 1 and 3 h duration was more effective in increasing particle sizes (50.9 and 50.1 μm, respectively). The sugar binding capacity, water holding capacity (from 2.98 to 3.86 g water/g SCF), and oil holding capacity (from 2.47 to 3.66 g oil/g SCF) increased in all AHP samples. Results from Fourier-transform infrared spectroscopy (FTIR) confirmed the polymorphism transition of cellulose (cellulose I to cellulose II). The morphology of SCF detected under scanning electron microscopy (SEM) indicated the conversion of the surface to a more porous, rough structure due to the AHP treatment. Adding SCF decreased dough extensibility but increased bread hardness and chewiness. All SCF-incorporated bread samples have reduced glycemic response. Incorporation of 1, 3, and 5 h AHP-treated SCF was effective in reducing the glycemic potency than 0.5 h AHP-treated SCF, but not significantly different from the untreated SCF. Overall, this study aims to valorize biomass as AHP is commonly applied to bagasse to produce value-added chemicals and fuels.
A Ratiometric Fluorescent Sensor Based on Silicon Quantum Dots and Silver Nanoclusters for Beef Freshness Monitoring
Authors: Sun Yue , Zhai Xiaodong , Zou Xiaobo , Shi Jiyong , Huang Xiaowei , Li Zhihua
Published: March 2023

A ratiometric fluorescent sensor with hydrogen sulfide (H2S) and methanthiol (CH3SH) sensitivity was developed to real-time monitor beef freshness. A silicon quantum dots (SiQD) and silver nanoclusters (AgNC) complex, namely SiQD-AgNC, was used as the dual emission fluorescence materials. Due to the fluorescence resonance energy transfer (FRET) effect between SiQD and AgNC, when the fluorescence of AgNC (610 nm) was quenched by H2S or CH3SH, the fluorescence of SiQD (468 nm) recovered, resulting in an increase of the fluorescent intensity ratio (I468/I610). I468/I610 showed a linear relationship with the H2S concentration within the concentration range of 1.125–17 μM, with a limit of detection (LOD) value of 53.6 nM. Meanwhile, I468/I610 presented two linear relationships with the CH3SH concentration within the concentration range of 1.125–17 μM and 23.375–38.25 μM, respectively, with a LOD value of 56.5 nM. The SiQD-AgNC complex was coated on a polyvinylidene fluoride (PVDF) film to form a portable SiQD-AgNC/PVDF film sensor. This film showed purplish red-to-cyan color changes in response to H2S and CH3SH, with LOD values of 224 nM and 233 nM to H2S and CH3SH, respectively. When the film was used to monitor beef freshness at 4 °C, its fluorescent color gradually changed from purplish red to cyan. Hence, this study presented a new ratiometric fluorescent sensor for intelligent food packaging.
Utility of Osteoarthritis as an Indicator of Age in Human Skeletal Remains: Validating the Winburn and Stock (2019) Method
Authors: Strasheim Ariana N. , Winburn Allysha P. , Stock Michala K.
Published: March 2023

In forensic anthropology, and biological anthropology more broadly, age estimation is a crucial element of the biological profile. The development of osteoarthritis (OA) is correlated with age and, in 2019, Winburn and Stock published a method of estimating age in a sample of 408 white American individuals using OA presence/absence. The current study expanded the original study by testing its accuracy on a more diverse sample, including black, indigenous, and people of color (BIPOC). This served to test whether embodied inequity from lived experiences may preclude the ability of the OA presence/absence method to estimate age at death. This study’s results demonstrated both that the original methodology was validated, and that the approach was accurate at estimating the age of death of BIPOC individuals. Furthermore, this study revealed that the hip and shoulder were highly consistent and reliable and are recommended for use as the strongest indicators of age at death, while the TMJ and ankle performed poorly and should not be used for age estimation.
Finite-Time Synchronization for Fractional Order Fuzzy Inertial Cellular Neural Networks with Piecewise Activations and Mixed Delays
Authors: Liu Yihong , Sun Yeguo
Published: March 2023

This paper investigates a class of finite-time synchronization problems of fractional order fuzzy inertial cellular neural networks (FFICNNs) with piecewise activations and mixed delays. First, the Caputo FFICNNs are established. A suitable transformation variable is constructed to rewrite FFICNNs with mixed delays into a first-order differential system. Secondly, some new effective criteria are constructed on the basis of the finite-time stability theory and Lyapunov functionals to realize the synchronization of the drive-response system. Finally, two numerical simulation examples show that the proposed method is effective.
Subordination Principle for Generalized Fractional Zener Models
Authors: Bazhlekova Emilia , Bazhlekov Ivan
Published: March 2023

The fractional Zener constitutive law is frequently used as a model of solid-like viscoelastic behavior. In this work, a class of linear viscoelastic models of Zener type, which generalize the fractional Zener model, is studied by the use of Bernstein functions technique. We prove that the corresponding relaxation moduli are completely monotone functions under appropriate thermodynamic restrictions on the parameters. Based on this property, we study the propagation function and establish the subordination principle for the corresponding Zener-type wave equation, which provides an integral representation of the solution in terms of the propagation function and the solution of a related classical wave equation. The analytical findings are supported by numerical examples.
Implementation of Analytical Techniques for the Solution of Nonlinear Fractional Order Sawada–Kotera–Ito Equation
Authors: Shah Rasool , Mofarreh Fatemah , Tag ElSayed M. , Ghamry Nivin A.
Published: March 2023

This article uses the Yang transform decomposition method and the homotopy perturbation transform method to study the seventh-order time-fractional Sawada–Kotera–Ito equation. The fractional derivative is taken into account in the Caputo sense. We used the Yang transform with the Adomian decomposition process and homotopy perturbation procedure on the time-fractional Sawada–Kotera–Ito problem to obtain the solution. We looked at a single case and contrasted it with the actual result to validate the methodologies. These techniques create recurrence relations representing the proposed problem’s solution. We then produced graphical representations that allowed us to visually check all of the outcomes in the proposed case for various fractional order values. The results of applying the current methodologies revealed strong connections to the precise resolution of the problem under investigation. The present study also illustrates error analysis. The numerical results obtained using the suggested techniques show that the methods are both simple and have excellent computational merit.
Solving Some Physics Problems Involving Fractional-Order Differential Equations with the Morgan-Voyce Polynomials
Authors: Srivastava Hari Mohan , Adel Waleed , Izadi Mohammad , El-Sayed Adel A.
Published: March 2023

In this research, we present a new computational technique for solving some physics problems involving fractional-order differential equations including the famous Bagley–Torvik method. The model is considered one of the important models to simulate the coupled oscillator and various other applications in science and engineering. We adapt a collocation technique involving a new operational matrix that utilizes the Liouville–Caputo operator of differentiation and Morgan–Voyce polynomials, in combination with the Tau spectral method. We first present the differentiation matrix of fractional order that is used to convert the problem and its conditions into an algebraic system of equations with unknown coefficients, which are then used to find the solutions to the proposed models. An error analysis for the method is proved to verify the convergence of the acquired solutions. To test the effectiveness of the proposed technique, several examples are simulated using the presented technique and these results are compared with other techniques from the literature. In addition, the computational time is computed and tabulated to ensure the efficacy and robustness of the method. The outcomes of the numerical examples support the theoretical results and show the accuracy and applicability of the presented approach. The method is shown to give better results than the other methods using a lower number of bases and with less spent time, and helped in highlighting some of the important features of the model. The technique proves to be a valuable approach that can be extended in the future for other fractional models having real applications such as the fractional partial differential equations and fractional integro-differential equations.
Network Externalities and Downstream Collusion under Asymmetric Costs: A Note
Authors: Lee Jen-Yao , Fan Chen-Chia , Tsai Chien-Shu
Published: March 2023

This paper considers the collusive stability of downstream competition in a vertical market with network externalities and cost asymmetry. A dynamic collusion game is constructed, and backward induction is employed to solve the subgame perfect Nash equilibrium. We show that larger network externalities lead to less collusive incentive for an inefficient firm, while for an efficient firm, this depends on the efficiency gap. An increase in network externalities will destabilize the downstream collusion when the cost asymmetry is large and network externalities are relatively weak.
Chromosomal Microarray in Patients with Non-Syndromic Autism Spectrum Disorders in the Clinical Routine of a Tertiary Hospital
Authors: Sandoval-Talamantes Ana Karen , Mori María Ángeles , Santos-Simarro Fernando , García-Miñaur Sixto , Mansilla Elena , Tenorio Jair Antonio , Peña Carolina , Adan Carmen , Fernández-Elvira María , Rueda Inmaculada , Lapunzina Pablo , Nevado Julián
Published: March 2023

Autism spectrum disorders (ASD) comprise a group of neurodevelopmental disorders (NDD) characterized by deficits in communication and social interaction, as well as repetitive and restrictive behaviors, etc. The genetic implications of ASD have been widely documented, and numerous genes have been associated with it. The use of chromosomal microarray analysis (CMA) has proven to be a rapid and effective method for detecting both small and large deletions and duplications associated with ASD. In this article, we present the implementation of CMA as a first-tier test in our clinical laboratory for patients with primary ASD over a prospective period of four years. The cohort was composed of 212 individuals over 3 years of age, who met DSM-5 diagnostic criteria for ASD. The use of a customized array-CGH (comparative genomic hybridization) design (KaryoArray®) found 99 individuals (45.20%) with copy number variants (CNVs); 34 of them carried deletions (34.34%) and 65 duplications (65.65%). A total of 28 of 212 patients had pathogenic or likely pathogenic CNVs, representing approximately 13% of the cohort. In turn, 28 out of 212 (approximately 12%) had variants of uncertain clinical significance (VUS). Our findings involve clinically significant CNVs, known to cause ASD (syndromic and non-syndromic), and other CNVs previously related to other comorbidities such as epilepsy or intellectual disability (ID). Lastly, we observed new rearrangements that will enhance the information available and the collection of genes associated with this disorder. Our data also highlight that CMA could be very useful in diagnosing patients with essential/primary autism, and demonstrate the existence of substantial genetic and clinical heterogeneity in non-syndromic ASD individuals, underscoring the continued challenge for genetic laboratories in terms of its molecular diagnosis.
Chronic Stress Alters Hippocampal Renin-Angiotensin-Aldosterone System Component Expression in an Aged Rat Model of Wolfram Syndrome
Authors: Punapart Marite , Reimets Riin , Seppa Kadri , Kirillov Silvia , Gaur Nayana , Eskla Kattri-Liis , Jagomäe Toomas , Vasar Eero , Plaas Mario
Published: March 2023

Biallelic mutations in the gene encoding WFS1 underlie the development of Wolfram syndrome (WS), a rare neurodegenerative disorder with no available cure. We have previously shown that Wfs1 deficiency can impair the functioning of the renin-angiotensin-aldosterone system (RAAS). The expression of two key receptors, angiotensin II receptor type 2 (Agtr2) and bradykinin receptor B1 (Bdkrb1), was downregulated both in vitro and in vivo across multiple organs in a rat model of WS. Here, we show that the expression of key RAAS components is also dysregulated in neural tissue from aged WS rats and that these alterations are not normalized by pharmacological treatments (liraglutide (LIR), 7,8-dihydroxyflavone (7,8-DHF) or their combination). We found that the expression of angiotensin II receptor type 1a (Agtr1a), angiotensin II receptor type 1b (Agtr1b), Agtr2 and Bdkrb1 was significantly downregulated in the hippocampus of WS animals that experienced chronic experimental stress. Treatment-naïve WS rats displayed different gene expression patterns, underscoring the effect of prolonged experiment-induced stress. Altogether, we posit that Wfs1 deficiency disturbs RAAS functioning under chronic stressful conditions, thereby exacerbating neurodegeneration in WS.
Using Motivation Theory to Design Equity-Focused Learning Analytics Dashboards
Authors: Aguilar Stephen J.
Published: March 2023

Learning Analytics applications, and their associated dashboards, are frequently used in post-secondary settings; yet, there has been limited work exploring the motivational implications of their deployment, especially for under-served student populations that are more susceptible to (perceived) negative messages about their academic performance. In this paper, I argue that Situated Expectancy-Value Theory (EVT) is well-positioned to serve as a useful lens when developing and evaluating learning analytics dashboard designs and their future development. Used in this way, SEVT can help the learning analytics community to ensure that student experiences with learning analytics are adaptively motivating, both in general and for underserved student populations more specifically.
Comprehensive Analysis of Hydrological Processes in a Programmable Environment: The Watershed Modeling Framework
Authors: Velásquez Nicolás , Vélez Jaime Ignacio , Álvarez-Villa Oscar D. , Salamanca Sandra Patricia
Published: March 2023

Distributed hydrological modeling has increased its popularity in the community, leading to the development of multiple models with different approaches. However, the rapid growth has also opened a gap between models, interfaces, and advanced users. User interfaces help to set up and pre-process steps. Nevertheless, they also limit the implementation of more complex experiments. This work presents the Watershed Modeling Framework (WMF) as a step forward in closing the interface–usage gap. WMF is a Fortran-Python module designed to provide tools to perform hydrological analysis and modeling that conceptualizes the watershed as an object with a defined topology, properties, and functions. WMF has a built-in hydrological model, geomorphological analysis functions, and a QGIS plugin. WMF interacts with other popular Python modules, making it dynamic and expandible. In this work, we describe the structure of WMF and its capabilities. We also provide some examples of its implementation and discuss its future development.
A Case of Oral-Vancomycin-Induced Rash in a Patient with Acute Kidney Injury
Authors: Cardozo Milena , Parmar Angadbir S. , Rueda Prada Libardo , Shweta Fnu
Published: March 2023

Clostridioides difficile infection (CDI) is one of the most common hospital-acquired infections. Its incidence has increased during the last decade in the community among individuals with no previous risk factors; however, morbidity and mortality are still considered high in elderly patients. Oral Vancomycin and Fidaxomicin are the first lines of treatment for CDI. The systemic bioavailability of oral Vancomycin is thought to be undetectable due to its poor absorption in the gastrointestinal tract; therefore, routine monitoring is not warranted. Only 12 case reports were found in the literature that described adverse reactions associated with oral Vancomycin and its related risk factors. We present a case of a 66-year-old gentleman with severe CDI and acute renal failure who was started on oral Vancomycin upon admission. On day five of treatment, he developed leukocytosis associated with neutrophilia, eosinophilia, and atypical lymphocytes, with no evidence of active infection. Three days later, he developed a pruritic maculopapular rash in more than 50% of his body surface area. Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) was ruled out since the patient only had three inclusion criteria for this diagnosis. No clear inciting agent was found. Oral Vancomycin was stopped and supportive treatment was supplied for a presumed Vancomycin-induced allergic reaction. The patient had an excellent response, with complete resolution of the rash and leukocytosis in less than 48 h. By reporting this case, we want to raise awareness among clinicians to remember that, albeit rare, oral Vancomycin can be the cause of adverse drug reactions in patients with severe illnesses.
A Principal Investigator as a PrEP-Using Peer Change Agent for HIV Prevention among Black Gay and Bisexual Men: An Autoethnography
Authors: Dangerfield Derek T.
Published: March 2023

HIV pre-exposure prophylaxis (PrEP) use remains suboptimal among Black gay and bisexual men (GBM). Multilevel factors such as medication costs, intersectional stigma, patient-clinician communication, medical mistrust, side effect concerns, and low perceived HIV risk (PHR) are well-established PrEP initiation barriers for this group. Peer change agents (PCAs) are culturally congruent interventionists who can circumvent multilevel PrEP barriers among Black GBM. I led an intervention as a PrEP-using PCA to improve PHR and PrEP willingness among 69 Black GBM from 2019–2022 and conducted an autoethnography to better understand multilevel barriers and identify the personal/professional challenges of being an in-group HIV interventionist serving Black SMM. Findings provide novel perspectives regarding PrEP barriers, the role of cultural homophily in behavior change interventions, and how interpersonal dynamics can impact staff fatigue, protocol fidelity, and research participation. Recommendations to prepare and support culturally congruent research staff are also provided.
Sleep Debt Mediates the Relationship between Work-Related Social Factors, Presenteeism, and Well-Being in Japanese Workers
Authors: Takano Yuta , Iwano Suguru , Ando Takeshi , Okajima Isa
Published: March 2023

Sleep debt is associated with presenteeism and mental health; however, the association of sleep debt with presenteeism and well-being in the context of work-related social factors (commuting time, workdays, and working hours) has not been fully elucidated. This study aimed to examine whether work-related social factors are associated with presenteeism and well-being via sleep debt. The participant group comprised 872 full-time and 526 part-time workers (mean age: 44.65 ± 12.37 and 48.47 ± 12.93 years, respectively). For both the full-time and part-time workers, increased sleep debt was significantly associated with presenteeism (β = −0.171; β = −0.160) and low well-being (β = −0.135; β = −0.153). Notably, commuting time was significantly associated with increased sleep debt in full-time workers (β = 0.09). In contrast, the number of workdays was significantly associated with increased sleep debt in part-time workers (β = −0.102). Working hours were not significantly associated with sleep debt for both full- and part-time workers. These results reveal that sleep debt might lead to various risks among workers, elucidating the work-related social factors related to sleep debt. They also highlight the importance of considering work-related social factors when addressing sleep debt.
Environmental Consciousness, Purchase Intention, and Actual Purchase Behavior of Eco-Friendly Products: The Moderating Impact of Situational Context
Authors: Kim Nayeon , Lee Kyungtag
Published: March 2023

Recently, environmental issues have become major social concerns, and consumers are becoming increasingly aware of environmental matters; however, they remain hesitant to purchase eco-friendly products. This study examined consumers’ environmental consciousness as a factor influencing the purchase of eco-friendly products, and investigated situational factors that induce hesitancy in purchasing eco-friendly products. We studied the moderating effects of these factors with regard to ease of purchase and eco label credibility. Our research model is validated using data from 220 consumers with experience in purchasing eco-friendly products in Korea. For the data analysis, we used SPSS 22.0 and AMOS 22.0 to perform confirmatory factor analysis and SEM. The specific verification results are as follows. First, environmental interest did not significantly impact the purchase intention of eco-friendly products. Second, consumers’ environmental knowledge and consumer effectiveness perception both had a significant impact on the purchase intention of eco-friendly products. Third, the intention to purchase eco-friendly products significantly impacted the purchase behavior of eco-friendly products. In addition, the results of this study show that ease of purchase and eco label credibility have moderating effects on the relationship between purchase intention and purchase behavior. This study results contribute to the eco-friendly consumption literature by explaining the intention–behavior gap. This study also show that eco-friendly consumption can be stimulated through raising eco label credibility and ease of purchase. The findings have theoretical implications for understanding the factors that affect consumers’ intentions of and behavior toward eco product purchases, and practical implications for how to stimulate environmental consumer behavior.
A Descriptive Qualitative Study of the Perceptions of Regulatory Authorities, Parents, and School Canteen Owners in the South of Ecuador about the Challenges and Facilities Related to Compliance with the National Regulation for School Canteens
Authors: Cabrera-Ledesma Belén , Abril-Ulloa Victoria , Pinos-Vélez Verónica , Carpio-Arias Valeria
Published: March 2023

The prevalence of overweight and obesity in the Ecuadorian school population continues to increase. An important factor in children’s nutrition is the food offered in school canteens. The objective of this study was to explore the perceptions of the challenges faced by and facilities of school canteens in the provinces of southern Ecuador in terms of complying with national regulations. For this qualitative descriptive study, semi-structured interviews were conducted in 2021 with six school canteen owners, six school directors, five health experts, and seven parents of children attending school from three provinces, Cañar, Azuay, and Morona Santiago, in Ecuador. The data were transcribed and subsequently analyzed in ATLAS ti. The participants indicated several challenges to comply with the regulations of school canteens, such as the expenses generated by them, the lack of control of street food vendors in the surroundings of the schools, and the lack of trained personnel. Regarding the facilities, they highlighted that the regulation for cleaning and hygiene are more easily fulfilled. Standards and control of the food stipend in school canteens are required to ensure a supply of healthy food for the children. Multiple challenges and strategies are proposed to improve the eating habits of the school population and to improve the nutrition of schoolchildren.
An Analysis of the Prevalence and Factors Influencing Food Insecurity among University Students Participating in Alcohol Consumption in KwaZulu-Natal Province
Authors: Jilajila Senelisiwe Penelope , Ngidi Mjabuliseni Simon Cloapas , Hlatshwayo Simphiwe Innocentia , Ojo Temitope Oluwaseun
Published: March 2023

Food insecurity among the student population is a prominent issue in South African university institutions. However, personal experiences and the myriad of underlying factors contributing to the issue remain poorly documented. Among other factors, these universities are characterized by the admission of a majority of their student population from poor backgrounds with limited financial capabilities, and this affects their food security status. The purpose of this study was to view the patterns of food insecurity among students, with a focus on alcohol consumption as one of the various factors influencing student food security status. Data were collected from 156 student respondents from the University of KwaZulu-Natal, Durban University of Technology, Mangosuthu University of Technology, and the University of Zululand. The Household Food Insecurity Access Scale revealed that from the total sample, only 21.79% reported themselves as food secure, whilst the remainder reported varying levels of food insecurity with 17.31% of students being food insecure, 16.03% mildly food insecure, and 44.87% severely food insecure. On the other hand, a prevalence of 73.08% (n = 114) of alcohol consumption was found among the sampled students. Ordered probit models results suggested that students’ alcohol consumption prevalence was determined by gender, level of study, exercise/playing sport, marital status, and distance to campus, which all had statistically significant effects on students’ alcohol consumption. Most crucially, gender, institution and campus positively affected students’ food security status, while the income variable made a negative significant contribution towards student food security status. Therefore, a link between students’ finances and food insecurity was evident. However, further research is required to delve into the link between the level and impact of students’ alcohol consumption and its implications on their financial status, and thus food security status. This is crucial information which will help policymakers understand these underlying factors and experiences and thus find solutions for issues related with food insecurity.
Geographical Disparity in Cardiorespiratory Fitness among 3,189,540 Japanese Children and Adolescents before and during the Coronavirus 2019 Pandemic: An Ecological Study
Authors: Kidokoro Tetsuhiro
Published: March 2023

This ecological study aimed to use nationally representative physical fitness (PF) data to investigate the geographical disparities in cardiorespiratory fitness (CRF) among Japanese children across prefectures before and during the coronavirus 2019 (COVID-19) pandemic. The publicly available descriptive PF data of children from Grade 5 (10–11 years; n = 1,946,437) and adolescents from Grade 8 (13–14 years; n = 1,243,103) at the prefecture level (47 prefectures) were obtained from the annual census PF survey in 2019 (before the pandemic) and 2021 (during the pandemic). The 20 m shuttle run performance was used as a measure of CRF. Geographical disparity was evaluated using the coefficient of variation (CV) for CRF across prefectures. There were significant negative relationships between the magnitude of infections (evaluated as the number of confirmed cases) and changes in CRF at the prefecture level (r ≤ −0.293, p < 0.05). This study also found a substantial increase in CVs of CRF across prefectures for Grade 8 students, suggesting that COVID-19-related restrictions had widened the geographical disparity in CRF among Japanese adolescents. Adolescents’ CRF is an important marker for current and future health; hence, the findings of widening geographical disparities in CRF are suggestive of widening geographical disparities in health among the Japanese population.
Predicting the HIV/AIDS Knowledge among the Adolescent and Young Adult Population in Peru: Application of Quasi-Binomial Logistic Regression and Machine Learning Algorithms
Authors: Aybar-Flores Alejandro , Talavera Alvaro , Espinoza-Portilla Elizabeth
Published: March 2023

Inadequate knowledge is one of the principal obstacles for preventing HIV/AIDS spread. Worldwide, it is reported that adolescents and young people have a higher vulnerability of being infected. Thus, the need to understand youths’ knowledge towards HIV/AIDS becomes crucial. This study aimed to identify the determinants and develop a predictive model to estimate HIV/AIDS knowledge among this target population in Peru. Data from the 2019 DHS Survey were used. The software RStudio and RapidMiner were used for quasi-binomial logistic regression and computational model building, respectively. Five classification algorithms were considered for model development and their performance was assessed using accuracy, sensitivity, specificity, FPR, FNR, Cohen’s kappa, F1 score and AUC. The results revealed an association between 14 socio-demographic, economic and health factors and HIV/AIDS knowledge. The accuracy levels were estimated between 59.47 and 64.30%, with the random forest model showing the best performance (64.30%). Additionally, the best classifier showed that the gender of the respondent, area of residence, wealth index, region of residence, interviewee’s age, highest educational level, ethnic self-perception, having heard about HIV/AIDS in the past, the performance of an HIV/AIDS screening test and mass media access have a major influence on HIV/AIDS knowledge prediction. The results suggest the usefulness of the associations found and the random forest model as a predictor of knowledge of HIV/AIDS and may aid policy makers to guide and reinforce the planning and implementation of healthcare strategies.
Mediating Effects of Trait Anxiety and State Anxiety on the Effects of Physical Activity on Depressive Symptoms
Authors: Kikkawa Masayuki , Shimura Akiyoshi , Nakajima Kazuki , Morishita Chihiro , Honyashiki Mina , Tamada Yu , Higashi Shinji , Ichiki Masahiko , Inoue Takeshi , Masuya Jiro
Published: March 2023

Background: Previous studies have reported that physical activity can prevent the onset of depression and reduces anxiety. In the present study, the hypothesis that total physical activity time influences depressive symptoms via state and trait anxiety was tested by a path analysis. Methods: Self-administered questionnaires were used to survey 526 general adult volunteers from April 2017 to April 2018. Demographic information, physical activity, and state and trait anxiety were investigated. Results: The association between physical activity time and depressive symptoms was expressed as a U-shape curve. The results of the covariance structure analysis showed that differences from the optimal physical activity time (DOT) had direct positive effects on state and trait anxiety. DOT affected depressive symptoms only via trait anxiety, and this was a complete mediation model. Conclusion: The present study suggests that an optimal physical activity time exists for depressive symptoms. The path model demonstrated an association between the three factors of optimal physical activity time, trait anxiety, and depressive symptoms, and the effect was fully mediated by trait anxiety.
Psychological Distress in the Republic of Serbia, the Association of Social Characteristics and Substance Use on a National Representative Sample of Serbia
Authors: Tadic Milica , Terzic-Supic Zorica , Todorovic Jovana , Kilibarda Biljana , Santric-Milicevic Milena , Dusanovic-Pjevic Marija , Milicevic Srboljub
Published: March 2023

This study examined the association between social characteristics, substance use, and psychological distress in a national representative sample of adults in Serbia. It was a secondary analysis of the National Survey on Lifestyles in Serbia: Substance Abuse and Gambling 2018. The study included a total of 2000 participants aged 18 to 65 from the general population in Serbia. Psychological distress was examined using the Kessler 6 questionnaire. There were a total of 945 male participants (47.3%) and 1055 (52.8%) female participants. The average age was 37.83 ± 13.61 years. The prevalence of a high risk of psychological distress was 5.2% (103/2000), while the prevalence of moderate risk of psychological distress was 15.2% (303/2000). Multivariate logistic regression analysis showed that being male, having poor self-rated health, having poor subjective financial status, binge drinking in the past year, and lifetime use of any illicit drug were associated with a higher likelihood of having a high risk of psychological distress. One in six adults in Serbia has a high risk of psychological distress, while one in twenty has a moderate risk. The findings of this study urge targeted actions to protect and improve the health of people in psychological distress and drug and alcohol users.
Medication Assessment in an Older Population during Acute Care Hospitalization and Its Effect on the Anticholinergic Burden: A Prospective Cohort Study
Authors: Espaulella-Ferrer Mariona , Molist-Brunet Nuria , Espaulella-Panicot Joan , Sevilla-Sánchez Daniel , Puigoriol-Juvanteny Emma , Otero-Viñas Marta
Published: March 2023

(1) Background: Anticholinergic and sedative drugs (ASDs) contribute to negative health outcomes, especially in the frail population. In this study, we aimed to assess whether frailty increases with anticholinergic burden and to evaluate the effects of medication reviews (MRs) on ASD regimens among patients attending an acute care for the elderly (ACE) unit. (2) Methods: A cohort study was conducted between June 2019 and October 2020 with 150 consecutive patients admitted to our ACE unit. Demographic, clinical, and pharmacological data were assessed. Frailty score was determined using the Frail-VIG index (FI-VIG), and ASD burden was quantified using the drug burden index (DBI). In addition, the MR was performed using the patient-centered prescription (PCP) model. We used a paired T-test to compare the DBI pre- and post-MR and univariate and multivariate regression to identify the factors associated with frailty. (3) Results: Overall, 85.6% (n = 128) of participants showed some degree of frailty (FI-VIG > 0.20) and 84% (n = 126) of patients received treatment with ASDs upon admission (pre-MR). As the degree of frailty increased, so did the DBI (p < 0.001). After the implementation of the MR through the application of the PCP model, a reduction in the DBI was noted (1.06 ± 0.8 versus 0.95 ± 0.7) (p < 0.001). After adjusting for covariates, the association between frailty and the DBI was apparent (OR: 11.42, 95% (CI: 2.77–47.15)). (4) Conclusions: A higher DBI was positively associated with frailty. The DBI decreased significantly in frail patients after a personalized MR. Thus, MRs focusing on ASDs are crucial for frail older patients.
Lifestyle, Nutrition, and Environmental Factors Influencing Health Benefits
Authors: Serio Francesca , De Donno Antonella , Valacchi Giuseppe
Published: March 2023

Food is the plants and animals we consume, and nutrition is the way in which food influences bodily wellness [...]
“Step by Step We Were Okay Now”: An Exploration of the Impact of Social Connectedness on the Well-Being of Congolese and Iraqi Refugee Women Resettled in the United States
Authors: Bletscher Caitlin , Spiers Sara
Published: March 2023

Little is known about the gendered impacts of the displacement and resettlement process. Women are known to struggle more with feelings of belonging and the creation of social networks to access essential information, resources, and social and emotional support to enhance their overall health and well-being. The purpose of the present study was to qualitatively explore female refugee perceptions of belongingness and social connectedness post-resettlement into their U.S. host community. Conducted between January and June of 2016, through the partnership of multiple governmental, nonprofit, and community-based organizations, two female focus groups were conducted among Congolese (n = 6) and Iraqi (n = 6) U.S. resettled refugees. Descriptive surveys were distributed to participants, providing valuable insights into participant demographics and indicators that could impact the integration process (i.e., age, language, country of origin, ethnicity, education, length of time spent in the U.S., housing). Participants discussed the social connections (individuals, communities, organizations) that acted as facilitators or inhibitors of developing social capital. The importance of building strong transformational bonding (family members, other refugees) and bridging (host community) relationships, alongside transactional ties with linking agencies (resettlement social services), was critical for a positive resettlement experience. The strength of their network ties among these social connections contributed to their perceptions of belongingness and well-being post-resettlement into their host community.
Translating and Validating the Vietnamese Version of the Health Sciences Evidence-Based Practice Questionnaire
Authors: Nguyen Quyen Thao , Yeh Mei-Ling , Ngo Ly Thi Hai , Chen Chiehfeng
Published: March 2023

No validated instrument is available for assessing the evidence-based practice capacity of Vietnamese health professionals. This study aimed to translate and validate the Health Sciences Evidence-Based Practice questionnaire (HS-EBP) from English to Vietnamese and ascertain its psychometric properties. Data were collected from two obstetric hospitals in Vietnam. Participants: A total of 343 midwives were randomly selected. The HS-EBP questionnaire was translated by a group of bilingual experts into Vietnamese (HS-EBP-V). Content validity was assessed by two experts. Internal consistency and test–retest reliabilities were assessed using Cronbach’s α and intraclass correlation (ICC), respectively. Construct validity was assessed using the contrasted groups approach. As a result, the content validity index of the HS-EBP-V reached 1.0. For the individual subscales, Cronbach’s α was 0.92–0.97 and ICC was between 0.45 and 0.66. The validity of the contrasted-groups approach showed discrimination by a significant difference in the subscale scores among diploma holders compared with bachelor’s degree holders (p < 0.001). The validation of the HS-EBP questionnaire indicated satisfactory psychometric properties. The results indicate that the HS-EBP is a reliable and valid instrument which assesses the competencies of as well as facilitators of and barriers to the five steps of EBP among midwives. The HS-EBP-V was deemed a reliable and validated tool for assessing the competency and application of EBP among Vietnamese healthcare professionals.
Influence of High-Intensity Interval Training on IGF-1 Response, Brain Executive Function, Physical Fitness and Quality of Life in Sedentary Young University Women—Protocol for a Randomized Controlled Trial
Authors: Jiménez-Roldán Manuel-Jesús , Sañudo Borja , Carrasco Páez Luis
Published: March 2023

Sedentary lifestyles have become a social problem, mainly among women. A sedentary lifestyle has been associated with poorer health in this population, negatively affecting physical and mental health. Physical exercise, in particular high-intensity interval training (HIIT), has been shown to be a neuroprotective tool. The present study provides a protocol design for a parallel-group Randomized Controlled Trial (RCT), whose aim will be to compare the effect of two physical interventions, HIIT and physical activity (increasing daily steps), on Insulin Growth Factor-1 (saliva IGF-1 concentrations), executive functions, quality of life, body composition, physical fitness, and physical activity in young sedentary women. At least 77 women will be recruited and randomly assigned to either a HIIT group (12-week exercise HIIT intervention, 3 sessions/week), the HIIT + PA group (12-week exercise HIIT intervention, 3 sessions/week, plus 10,000 steps/day), or a control group (usual care). The primary outcome measure will the chronic change in IGF-1 concentration levels measured in saliva. Secondary outcome measures will be: (i) executive functions; (ii) body composition; (iii) physical fitness; (iv) physical activity; and (v) quality of life. All outcomes will be assessed at the beginning of the study, after the intervention, and after three months of follow-up. After this intervention, we will be able to determine whether HIIT together with increased physical activity could be more effective than HIIT alone in IGF-1 stimulation. Furthermore, by comparing both intervention groups, we will be able to determine the differential effects on numerous health-related variables. Consequently, the conclusions of this study could help better understand the effects of a training program on IGF-1 concentration levels and executive functions. In addition, various strategies could be proposed through physical exercise to improve cognition in this age group, as well as to improve the health status of this sedentary population.
Correction: Suzuki et al. Cross-Country Student Perceptions about Online Medical Education during the COVID-19 Pandemic. Int. J. Environ. Res. Public Health 2022, 19, 2840
Authors: Suzuki Tomoya , Murayama Anju , Kotera Yasuhiro , Bhandari Divya , Senoo Yuki , Tani Yuta , Harada Kayo , Kawamoto Ayumu , Sato Satomi , Sawano Toyoaki , Miyata Yasushi , Tsubokura Masaharu , Tanimoto Tetsuya , Ozaki Akihiko
Published: March 2023

In the published publication, there was an error regarding the affiliation for “Tomoya Suzuki” [...]
Overreaction in a Frontier Market: Evidence from the Ho Chi Minh Stock Exchange
Authors: Truong Loc Dong , Cao Giang Ngan , Friday H. Swint , Doan Nhien Tuyet
Published: March 2023

The purpose of the study is to investigate the overreaction hypothesis in relation to the Ho Chi Minh Stock Exchange (HOSE). The data used in this study consist of a monthly price series of 392 stocks traded on the HOSE, covering the period starting on 5 January 2004 through to 30 June 2021. The findings derived from the tests examining the differences in excess returns across the winner and loser portfolios confirm that the overreaction phenomenon exists in the HOSE. More specifically, following the creations of the portfolios, the loser portfolio outperformed the winner portfolio by 1.80% and 2.17% in the second and third month, respectively. In addition, the differences in cumulative abnormal returns between the loser and winner portfolios were significantly positive for almost all tracking periods. These findings support the hypothesis that the Vietnam stock market is inefficient in its weak form. Based on these results, we suggest that investors can earn abnormal returns by using contrarian trading strategies in the Vietnam stock market.