bluuebunny/crossref_metadata_2025 huggingface dataset:
Very Late Presentation to HIV Care in Ho Chi Minh City: Social Support and Other Associated Factors
Authors:   Hanoi Medical University, Dao Thi Dieu Thuy , Nguyen Thi Hue ,   Hanoi Medical University, Nguyen Thu Trang ,   Hanoi Medical University, Tran Khoa ,   Hanoi Medical University, Luong Anh Ngoc ,   Hanoi Medical University, Le Minh Giang ,   Hanoi Medical University, Roselyne Vallo ,   Pathogenesis & Control of Chronic Infections, University of Montpellier, INSERM, Montpellier, France, Nicolas Nagot ,   Pathogenesis & Control of Chronic Infections, University of Montpellier, INSERM, Montpellier, France, Delphine Rapoud ,   Pathogenesis & Control of Chronic Infections, University of Montpellier, INSERM, Montpellier, France, Didier Laureillard ,   Pathogenesis & Control of Chronic Infections, University of Montpellier, INSERM, Montpellier, France
Published: June 2023

Objective: This study highlights factors associated with very late presentation for HIV care in Ho Chi Minh City (HCMC), Vietnam. Methods: Inclusion criteria were: aged≥18 years, being ART-naive, living in HCMC at least for the prior 6 months, and having either CD4<100 cells/µL (very late presentation) or CD4≥350 cells/µL (early presentation). Results: Of 698 participants, 242 (35%) were very late presenters with a median CD4 count of 35 (IQR: 15–61). In the multivariable logistic regression model, factors associated with the very late presentation were being a self-reported heterosexual male (vs. female, aOR=2.1, 95% CI: 1.3 – 3.6) and being diagnosed with HIV infection at hospitals (vs. those who were aware of their HIV risks, aOR=3.9, 95% CI: 2.6 – 6.1). Participants who had social support were less likely to present late (aOR=0.98, 95% CI: 0.97 – 0.99). Conclusions: Improving linkages to care is necessary and future studies should pay more attention to the role of social support in this linkage.
Global health officers’ competency gaps on knowledge and skills and its associated factors in Vietnam
Authors:   Hanoi Medical University, Hoang Thi Hai Van , Nguyen Phuong Linh ,   Hanoi Medical University, Pham Phuong Mai ,   Hanoi Medical University, Trinh Dinh Minh Viet ,   Hanoi Medical University, Le Minh Giang ,   Hanoi Medical University, Pham Hai Thanh ,   Hanoi Medical University Hospital
Published: June 2023

Objective: This study aimed to characterize the gaps in competencies related to global health knowledge and skills among global health officers (GHOs) in Vietnam. Methods: A cross-sectional study was conducted with the participation of 181 GHOs who engaged in global health activities in health facilities across Vietnam. The study employed a self-development questionnaire to measure the gaps in knowledge and skills among the GHOs. Results: The results showed that the domain with the highest competency gap score for global health knowledge was Social, Economic, and Environmental Determinants of Health (mean score = 5.3, SD = 6.2). Regarding global health skills, Strategic Analysis (mean score = 5.8, SD = 5.4) was the domain with the highest competency gap score. Program Management (mean score = 4.7, SD = 5.9) was the domain with the lowest competency gap score for global health knowledge. Responders gave the Ethics and Professionalism (mean score = 5.1, SD = 5.5) and Global Health Governance (mean score = 5.1, SD = 5.4) domains the lowest competency gap scores for global health skills. Furthermore, the study identified that gender, education level, working organization, and specialty were associated with the competency gaps in global health knowledge and skills among GHOs. Conclusion: The study showed significant gaps in competencies related to global health knowledge and skills among GHOs in Vietnam. The findings highlight the need for targeted training and education in specific skill areas such as: Capacity Strengthening for workforce, Ethics and Professionalism, Communication, Collaboration, and Partnership, Program Management for non-medical field GHOs to enhance their overall global health competency.
Assessing the knowledge, attitude, and practices of using household insecticides among residents and factors related to practices in Vinh Linh District, Quang Tri Province, 2022
Authors:   Quang Ninh Center for Disease Control and Prevention, Hoang Nhu Phong , Tran Thi Tuyet Hanh ,   Hanoi University of Public Health
Published: June 2023

Objectives: To describe the current status of knowledge, attitude, and practices of using household insecticides among residents and some factors related to practices in Vinh Linh District, Quang Tri Province in 2022. Methods: This was a cross-sectional study, interviewing 412 people over 18 years old in three towns and one commune in Vinh Linh District, Quang Tri Province in 2022. Results: Research results showed that 79.1% of households used spraying insecticides and 20.9% used ant-killing powder, mosquito scent, and mosquito repellant cream. 77.3%, 79.8% and 73.3% had good knowledge, positive attitude and appropriate practices for using household insecticides, respectively. When using insecticides, 86.3% of people wore masks/face coverings, 71.8% followed the instructions for use, and 53.7% did not follow the instructions when mixing chemicals. Appropriate practices of participants who had access to information about household insecticides, with appropriate knowledge and positive attitude were 2.8 times (95% CI: 1.5-5.2), 2.2 times (95% CI: 1.2-3.7), and 1.8 times (95% CI: 1.0-3.17) higher than those who did not have access to information, with inappropriate knowledge and inappropriate attitudes about using household insecticides, respectively. Conclusions: Approximately three-fourths of the people had good knowledge, positive attitude and appropriate practices for using household insecticides. Education, years of use, knowledge, attitude, and receiving information about household insecticides were related to the practice of using household insecticides. People should go to the shops selling licensed household insecticides for advice and instructions on the safe use and purchase of chemicals. It is also important to carefully read and follow the instructions for insecticide use and not buy insecticides of unknown origin. The Department of Health should strengthen the inspection and supervision at the points of sale of insecticides and communicate about the safe and effective use of household insecticides.
An ultra-lightweight detector with high accuracy and speed for aerial images
Authors: Yang Lei , Yuan Guowu , Wu Hao , Qian Wenhua
Published: June 2023

Aerial remote sensing images have complex backgrounds and numerous small targets compared to natural images, so detecting targets in aerial images is more difficult. Resource exploration and urban construction planning need to detect targets quickly and accurately in aerial images. High accuracy is undoubtedly the advantage for detection models in target detection. However, high accuracy often means more complex models with larger computational and parametric quantities. Lightweight models are fast to detect, but detection accuracy is much lower than conventional models. It is challenging to balance the accuracy and speed of the model in remote sensing image detection. In this paper, we proposed a new YOLO model. We incorporated the structures of YOLOX-Nano and slim-neck, then used the SPPF module and SIoU function. In addition, we designed a new upsampling paradigm that combined linear interpolation and attention mechanism, which can effectively improve the model's accuracy. Compared with the original YOLOX-Nano, our model had better accuracy and speed balance while maintaining the model's lightweight. The experimental results showed that our model achieved high accuracy and speed on NWPU VHR-10, RSOD, TGRS-HRRSD and DOTA datasets.
The growth or decay estimates for nonlinear wave equations with damping and source terms
Authors: Zeng Peng , Li Dandan , Li Yuanfei
Published: June 2023

The spatial decay or growth behavior of a coupled nonlinear wave equation with damping and source terms is considered. By defining the wave equations in a cylinder or an exterior region, the spatial growth and decay estimates for the solutions are obtained by assuming that the boundary conditions satisfy certain conditions. We also show that the growth or decay rates are faster than those obtained by relevant literature. This kind of spatial behavior can be extended to a nonlinear system of viscoelastic type. In the case of decay, we also prove that the total energy can be bounded by known data.
Design and stabilization analysis of luxury cruise with dynamic positioning systems based on sampled-data control
Authors: Zou Zhe , Zheng Minjie
Published: June 2023

This paper studies the sampled-data control issue for a luxury cruise (LC) with dynamic positioning system (DPS). The design method and mathematical model of LC is given. By constructing an improved time-dependent Lyapunov-Krasovskii function (LKF) by adding new useful terms, the sampling pattern is fully captured and less conservatism of the results are obtained. Based on the constructed the LKF, the new stability criterion is obtained and the sampled-data controller for LC with DPS is designed. Finally, an example is exhibited to prove that the proposed approach is valid and applicable.
Classical and Bayesian inference for the discrete Poisson Ramos-Louzada distribution with application to COVID-19 data
Authors: Alkhairy Ibrahim
Published: June 2023

The present study is based on the derivation of a new extension of the Poisson distribution using the Ramos-Louzada distribution. Several statistical properties of the new distribution are derived including, factorial moments, moment-generating function, probability moments, skewness, kurtosis, and dispersion index. Some reliability properties are also derived. The model parameter is estimated using different classical estimation techniques. A comprehensive simulation study was used to identify the best estimation method. Bayesian estimation with a gamma prior is also utilized to estimate the parameter. Three examples were used to demonstrate the utility of the proposed model. These applications revealed that the PRL-based model outperforms certain existing competing one-parameter discrete models such as the discrete Rayleigh, Poisson, discrete inverted Topp-Leone, discrete Pareto and discrete Burr-Hatke distributions.
Zero-shot learning via visual-semantic aligned autoencoder
Authors: Wei Tianshu , Huang Jinjie , Jin Cong
Published: June 2023

Zero-shot learning recognizes the unseen samples via the model learned from the seen class samples and semantic features. Due to the lack of information of unseen class samples in the training set, some researchers have proposed the method of generating unseen class samples by using generative models. However, the generated model is trained with the training set samples first, and then the unseen class samples are generated, which results in the features of the unseen class samples tending to be biased toward the seen class and may produce large deviations from the real unseen class samples. To tackle this problem, we use the autoencoder method to generate the unseen class samples and combine the semantic features of the unseen classes with the proposed new sample features to construct the loss function. The proposed method is validated on three datasets and showed good results.
Biochemical characterization of a psychrophilic and halotolerant α–carbonic anhydrase from a deep-sea bacterium, Photobacterium profundum
Authors: Somalinga Vijayakumar , Foss Emily , Grunden Amy M.
Published: June 2023

Prokaryotic α–carbonic anhydrases (α-CA) are metalloenzymes that catalyze the reversible hydration of CO2 to bicarbonate and proton. We had reported the first crystal structure of a pyschrohalophilic α–CA from a deep-sea bacterium, Photobacterium profundum SS9. In this manuscript, we report the first biochemical characterization of P. profundum α–CA (PprCA) which revealed several catalytic properties that are atypical for this class of CA's. Purified PprCA exhibited maximal catalytic activity at psychrophilic temperatures with substantial decrease in activity at mesophilic and thermophilic range. Similar to other α–CA's, Ppr9A showed peak activity at alkaline pH (pH 11), although, PprCA retained 88% of its activity even at acidic pH (pH 5). Exposing PprCA to varying concentrations of oxidizing and reducing agents revealed that N-terminal cysteine residues in PprCA may play a role in the structural stability of the enzyme. Although inefficient in CO2 hydration activity under mesophilic and thermophilic temperatures, PprCA exhibited salt-dependent thermotolerance and catalytic activity under extreme halophilic conditions. Similar to other well-characterized α–CA's, PprCA is also inhibited by monovalent anions even at low concentrations. Finally, we demonstrate that PprCA accelerates CO2 biomineralization to calcium carbonate under alkaline conditions.
Smoking and prevalence of COVID-19: Evidence from studies from January 2020 – May 2020
Authors: Butt Rafia , Sherwani Rehan Ahmad Khan , Aslam Muhammad , Albassam Mohammed
Published: June 2023

It is well-known that smoking tobacco harms the respiratory system and can lead to various health problems. Regarding COVID-19, a respiratory illness caused by the novel coronavirus SARS-CoV-2, smoking may have implications for both the risk of infection and the severity of the disease. Several studies have explored the association between smoking and COVID-19. However, findings have been somewhat inconsistent and vary from region to region for sample size. This article aims to study the prevalence of COVID-19 among those affected with their ongoing smoking history by computing pooled estimates of the published research. Fixed effect meta-analysis by following the guidelines of PRISMA has been carried out on 34 studies. The patients with confirmed RT-PCR and CT-scan were included, a total of 13,368; The studies' quality assessment was performed according to the Appraisal Checklist recommended by the Joanna Briggs Institute. The effect sizes of the published research are presented in the form of pooled estimates with their respective confidence intervals. Forest plots are used to represent the effect size graphically. Current smokers' effect sizes are 0.12 (CI = 0.11–0.12); for non-smokers, it is estimated to be 0.88 (CI = 0.88–0.89). The heterogeneity statistic I2 describes 0% of the total variation, meaning no heterogeneity among studies exists. A higher prevalence of COVID-19 among non-smokers is observed than the smokers.
Level of self-efficacy among skill-based allied health students in the University of Santo Tomas’ enriched virtual mode of learning: a cross sectional study
Authors: Manlapaz Donald G. , Versales Cristine Rose S. , Pazcoguin John Micko A. , Ching , Justin Jeremiah A. , Bartolome Marcela Joyce P. , Da Silva Samantha Lavin O. , Edquila Kertlouie Gabriel Z. , Fulo Lara Francheska A. , Male Yvonne Geisel Benezet J. , Peña Joey Patricia Y. , Pineda Ramon Miguel C.
Published: June 2023

Introduction: In virtual learning, self-efficacy expresses a learner's perception of how well they can do in the online academic setting. Although students’ academic successes can be measured by online learning self-efficacy, there is a scarcity of evidence targeted towards allied health students. The primary aim of this study was to determine the level of self-efficacy among allied health students in the University of Santo Tomas' Enriched Virtual Mode (EVM) of learning. The secondary aim was to compare the scores between Learning in an Online Environment, Time Management, and Use of Technology subscales, and the correlation of sex and program with the level of self-efficacy of allied health students.
Methods: This cross-sectional analytic study utilized the Online Learning Self-Efficacy Scale (OLSE) to determine students' level of self-efficacy via a survey conducted to students who underwent the EVM of Learning from the allied health programs with skill-based practical examination. Descriptive statistics was used to characterize the study participants, describe the level of self-efficacy, and compare the subscales of OLSE. Inferential statistics was performed using Spearman’s rho to determine the correlation of sex and program with the level of self-efficacy.
Results: A total of 117 respondents with mean age ±SD of 20.59 ± .11 years old, predominantly female (71%) were included in the study. The students from allied health programs had an online self-efficacy overall mean score of 3.83 (SD = .05; range 2.64 – 5.00). Females had a higher average OLSE score (M = 3.92, SD = .05). The Use of Technology subscales weighted the highest mean score (4.24). Correlation test showed significant correlation between OLSE scores to sex r (115) = .260, p = .005, where females tend to have higher OLSE scores than males, while no significant correlation was found between OLSE scores to the program r (115) = -.048, p = .604.
Discussion: Students of allied health programs generally have a very good level of online self-efficacy. This study assists educators in developing proactive strategies and approaches to promote students' self-confidence across all domains and encourages them to adopt a dynamic remote learning-based approach. Educational institutions should use this opportunity to assess how well they implemented remote learning to ensure educational continuity, especially in times of crisis.
Musculoskeletal risks of exergaming in adults: an observational cross-sectional study
Authors: Manlapaz Donald G. , Sicat Zyra Mae V. , Chavez Fe Therese M. , Alcoy Frances Andrea L. , Capuno Bernard Marco F. , Chow Shaniece Meredithe T. , De Guzman Jewel Gwen J. , Golingay Miguel Iñigo III Z. , Madlansacay Kirk Patrick S. , Park Hee Eun C. , Siazon Zui Francine S. , Vergara Angela Marie C.
Published: June 2023

Introduction: The past decade has seen a rapid increase in interest in using exergaming (exercise + gaming) for Physical Therapy (PT) management of adults. Exergaming utilizes an electronic device to allow participants to play a video game requiring physical movement while simultaneously receiving performance feedback on a monitor. Although potential sources of musculoskeletal risks may be present, evidence concerning musculoskeletal risks associated with exergaming is limited. The purpose of this study is to explore the body segments associated with musculoskeletal risk in exergaming among adults using the REBA tool and to assess the degree of musculoskeletal risk present using the participant’s demographic data in conjunction with REBA tool scores.
Methods: An observational, analytic cross-sectional study design was utilized. Participants from the community who had exergaming as part of their PT management were recruited. Included participants were observed and assessed for 15 minutes using Rapid Entire Body Assessment (REBA) while performing exergaming with either Aerobic or Balance exercises. Demographic characteristics were analyzed descriptively while spearman’s correlation was utilized to explore the relationship between the REBA final score and subscales.
Results: Twenty-four participants with mean age (±SD) of 27.13 (9.57) were recruited (14 (58%) female & 10 (42%) male). The Mean REBA score is 5.38. Significant correlations were found between the final REBA score and Upper arm (rs = 0.80, p < 0.001), Arm + Wrist (rs= 0.68, p = < 0.001), and Table C-partial REBA score (rs= 0.84, p = < 0.001). Demographic variables and the final REBA score were not significantly correlated.
Discussion: Moderate risk is observed in balance and aerobic exercises during exergaming which warrants further investigations. Decreasing Upper arm and Arm + Wrist arm scores may decrease the final REBA score as these scores possess greater weight due to the correlation between the scores and the final REBA score. Exergaming remains a possible alternative for simulating activities and exercises as it allows for a consistent and controlled environment while presenting with great potential to reduce the level of musculoskeletal disease risk.
Occupational safety and health practices among physical therapists in metro Manila during the COVID-19 pandemic: a qualitative descriptive study
Authors: Sicat Zyra Mae V. , Espino Paulin Grace M. , Devora Kristina B. , Budomo Richard Lemuel Q. , Abella Jewel Jace M. , Angeles Barbara Nicole Y. , Benzonan Giancarlo Philip H. , Chan Coby Jaleeyah Y. , Ignacio Erika L. , Palacio Peter Oliver G. , Tan Julia Erin G.
Published: June 2023

Introduction: The purpose of Occupational Safety and Health (OSH) is to protect workers from risks and hazards detrimental to their health and safety. The coronavirus disease 2019 (COVID19) is currently one of the most significant occupational health outcomes to physical therapists (PTs). However, minimal studies have been conducted on the experiences and OSH practices of PTs during the pandemic. This study, therefore, aims to understand the experiences of clinical PTs in Metro Manila, Philippines during the pandemic and to explore their OSH practices and responses to presenting occupational hazards.
Methods: In this qualitative descriptive study, maximum variation purposeful sampling was used in recruiting 12 participants. Data was gathered through one-to-one semi-structured online interviews, which were transcribed verbatim and recorded with audio and video. Coding was done in Google Sheets during data analysis. Emerging themes were identified using thematic inductive analysis.
Results: After identifying 98 codes through transcripts of the interviews, 3 themes emerged: Period of Uncertainty, Period of Adjustment, and Period of Hopeful Prospect.
Discussion: The Period of Uncertainty describes the time of surges of COVID-19 cases and series of lockdowns with minimal established protocols resulting in the challenges in the delivery of services and to the overall well-being of physical therapists. The Period of Adjustment was initiated by nationwide vaccination programs resulting in strengthening of OSH protocols. The Period of Hopeful Prospect describes the implications of the situation to both the PTs and the profession. The OSH practices of PTs varied with each period as changes occurred to their overall perceptions towards the pandemic and their personal health and safety. Findings can be considered in future formulation of OSH guidelines for potential outbreaks of infectious diseases within the practice of physical therapy.
Designing a content validated community needs assessment questionnaire for Barangays in Binangonan, Rizal: a psychometric study
Authors: Nava Jordan Barbra P. , Callejo-Tiuseco Archelle Jane C. , Rimando Christian Rey D. , Almeida Hannah Mae T. , Carandang John Carlo F. , Chua Anne Trisha A. , Hilario Cassiopeia Melle T. , Leongson John Eugene L. , Lozano Rafael Francisco P. , Roxas Juana Margarita M. , Tia Christianne Allyssa A.
Published: June 2023

Introduction: Needs assessment is essential before developing a community-based rehabilitation program to identify the factors that may affect the quality of life (QOL) in a community. However, no assessment tools were readily accessible and directed toward this study's target population and research locale. The study aims to develop and validate Community Assessment for Rehabilitation Enhancement (CARE), a PRECEDE-PROCEED model-based questionnaire that assesses the needs of barangays in Binangonan, Rizal.
Methods: The questionnaire items were grounded on related literature using keywords and Boolean operators across various research databases. A purposive sampling method was utilized to recruit a panel of experts to evaluate CARE’s content validity. Content validity was assessed by evaluating the tool’s grammar, choice of words, question construction, and scoring of items. The researchers then analyzed the data using content validity ratio (CVR) and content validity index (CVI).
Results: After reviewing related literature, the researchers generated 75 items for CARE, 55 of which were deemed appropriate based on the CVI. However, only one item in the questionnaire had a CVR result of at least 0.99.
Discussion: To further improve the current status of the questionnaire, additional rounds of Delphi, more panel experts, and a Filipino translation of the questionnaire may be done.
Perspectives of patients on technology-supported community-based rehabilitation: a qualitative study
Authors: Rimando, Christian Rey D. , Manlapaz Donald G. , Tangcuangco Lyle Patrick D. , Africa Samantha Kate C. , Ancheta Vincent Ronaldo T. , Fernando Jolo B. , Llave Camille Louise S. , Manlapig Jobelle M. , Paden Steven Paul O. , Ramos Camille A. , Resurreccion Reggie C.
Published: June 2023

Introduction: The study's primary aim is to explore the perspectives and experiences of patients regarding technologysupported community-based rehabilitation in the Philippines. The secondary aim is to ascertain the utilization of technologysupported community-based rehabilitation based on the participants' responses.
Methods: In this qualitative phenomenological study, purposive sampling for recruitment was utilized. Online focus group discussions were conducted with patients who have received rehabilitation in a technology-supported community-based rehabilitation setting. The recorded discussions were transcribed and coded using NVivo 12 software. The study employed an inductive approach of thematic analysis to extract significant themes. Continuous refinement and data analysis were done for data saturation.
Results: Five themes emerged using Braun and Clarke’s thematic analysis: accessibility in technology-supported community-based rehabilitation, primary device and platforms used in technologysupported community-based rehabilitation, limitations of technology-supported community-based rehabilitation, perceived usefulness of technology in community-based rehabilitation, and patient satisfaction.
Discussion: The facilitators and barriers found in the study affect the participants’ access and perceived usefulness of technology-based community-based rehabilitation which contributes to patient satisfaction. The study also found that patients perceived technology useful in community-based rehabilitation because it facilitates learning of exercises and enhances adherence to home exercise programs.
Alumni evaluation on university of Santo Tomas College of Rehabilitation Sciences physical therapy curriculum and program intended learning outcomes: a pilot descriptive quantitative study
Authors: Manlapaz Donald , Aseron Anne Marie , Andaman Maria Anastasia , Catapang Karlo Enrico , Correa Katryna Beatryze , De Guzman Margarita Regina , Go Que Jillianne Bayna , Lim Matt Bryant , Mantuano Anna Nicole , Martinez Diorella Fencine , Masakayan Lawrence Martin
Published: June 2023

Introduction: The purpose of this study was to determine the priority index of each PILO and to describe the perspective of the UST-CRS PT Alumni towards the new curriculum.
Methods: This descriptive quantitative, cross sectional study involved obtaining the perspective of the UST-CRS PT Alumni regarding the UST-CRS PILOs and curriculum through a selfmade questionnaire that underwent content validity. Qualitative questions were also included. Descriptive statistics were used to rank the PILOs, while content analysis was used to interpret the quantitative data.
Results: 18 UST-CRS PT Alumni with a mean age of 26.36 ± 16.17, responded to this pilot evaluation. Demonstrating social and professional responsibility and ethical behaviors (PILO 11) was ranked as the highest in terms of necessary skill level and importance to PT practice [SL = 4.89; Imp = 4.94] while Community-based activities as Thomasian agents of social transformation (PILO 13) was ranked as lowest in both aspects [SL = 3.78; Imp = 4.33]. Based on the priority index, PILO 11 was deemed as the highest in priority by the UST-CRS PT alumni (PI = 4.92) while PILO 13 was ranked as lowest in priority (PI = 4.06).
Discussion: Based on the evaluation of UST-CRS PT alumni, the new UST-CRS BSPT curriculum and PILOs satisfy the necessary components and competencies expected of an effective undergraduate program. Nevertheless, there is still room for improvement to ensure continuous translation of knowledge into practice. Increased time frame for comprehension, enhanced interprofessional collaboration, and inclusion of soft skills were some of the suggested improvements by the alumni.
Health promotion experiences of Filipino physical therapists
Authors: Villegas Jian Mikaela M. , Francisco Jelline L. , Ibanez Jay  Eugene R. , Dela Cruz Alic Deniel B. , Gelisanga Maribeth Anne  P.
Published: June 2023

Introduction: Health promotion is a potential solution to control and prevent non-communicable diseases, and physical therapists (PT) may be knowledgeable and skilled to be health promoters. However, there is a lack of health promotion policy in the country that can be used as a guideline for promoting health. This study aimed to describe the Filipino PTs health promotion experiences and strategies.
Methods: A descriptive phenomenological design was utilized with a self-developed interview guide used for the focus group discussion. Qualitative data was analyzed using a thematic analysis approach.
Results: Physical therapists perceive the role of health promoters as significant and should be integrated into physical therapy practice. Participants described different health-promoting strategies that they incorporate in their practice that are: client education; client-centered approach; holistic service; and interprofessional collaboration. Several facilitators and barriers to health promotion also emerged: guidelines and frameworks or lack thereof; institutional support; interprofessional collaboration;
networking; PTs interpersonal skills; client behavior; and health determinants. Participants described the determinants of health as the core factors that affect and influence the delivery of health promotion and behavior change of patients. The role of PTs as
advocates of health promotion was also emphasized.
Discussion: Filipino PTs practice health promotion in client care with several health-promoting strategies, however no specific and unifying health promotion guideline was identified among them. This suggests that our study may serve as a precursor to developing standard health promotion physical therapy practice guidelines aligned with physical therapy professional practice framework and national health promotion policies.
Development and Performance Evaluation of Hand Operated Screw Juicer for Small Scale Application
Authors: OKUSANYA Muyıwa , AGBONGİABAN Francis
Published: June 2023

Nutrients from fruits are lacking in most African diets despite their importance. This results in malnutrition and diseases. Some of the factors responsible for these dietary deficiencies are income level and technologies to address postharvest losses. A hand-operated screw juicer was developed in this technical brief to address some of the problems. The machine developed uses screw principle for fruits mastication and juice extraction. The screw juicer performance was tested based on extraction capacity, efficiency and number of runs. Bivariate linear regression was the statistical model used to understand the relationship between the explanatory variable, x (number of pass/runs) and the response variable, y (extraction capacity/efficiency). For orange, cucumber, pineapple, golden melon and watermelon, the efficiencies (%) are respectively 79.30, 48.68, 68.96, 56.41 and 56.52 at single pass. Also, the extraction capacities of the machine (L h-1) are respectively 6.38, 5.08, 9.16, 7.84 and 10.48 for the fruits. The efficiencies are higher with orange and pineapple due to fibrous nature of the fruits. Pineapple and watermelon gave higher extraction capacity due to higher water content and juicy nature, at 5 and 7 runs respectively. The model (Y = -49.29X1 + 295.71 ± 89.75) from the analysis using watermelon reveals machine extraction capacity in volume is a function of number of runs. The machine reached its highest extraction capacity of 10.48 liters in 1 hour at 7 runs. This extraction capacity makes the machine fit to meet daily dietary requirements (400 g per person, an equivalence of 380 ml) of more than 4 households if operated for one hour. The machine can be adopted for use by small scale processors as it is affordable, less stressful and easy to maintain.
Mathematically Predicting the Performance Rate of Plow-Type Trenchless Machine
Authors: GHONİMY Mohamed
Published: June 2023

This research was aimed to identify the main factors that influence the performance rate of plow-type trenchless machine and mathematically correlate these variables to predict performance rate. The mathematical analysis ended with an equation correlating the performance rate with the factors affecting it. The derived relationship was checked in various operational circumstances. The performance rate's practical experiments revealed that only for the 0.92 and 0.76 m disturbed soil depths, respectively, did the theoretical performance rate variation from the actual performance rate range from -3.0 to -0.7%. Also, for the 0.92 and 0.76 m disturbed soil depth, respectively, the field efficiency of plow type trenchless machine ranged from 49.7 to 45.4%. The novelty and innovativeness of this article is in the use of an analytical method to deduce a mathematical equation that can predict the performance rate; in determining the actual factors affecting the performance rate of plow type trenchless machine.
Performance and Cost Comparison of Photovoltaic and Diesel Pumping Systems: In Central Rift Valley of Ethiopia
Authors: DESTA Maney Ayalew , TİBBA Getachew Shunki , ISSA Mubarek Mohammed , HEYİ Wariso
Published: June 2023

Diesel pumps have extensively used for irrigation water pumping. However, this causes challenges both in terms of economic factors (fuel costs) and environmental impacts (emits air pollution). An alternative solution is using renewable energy sources. In this regard, a battery less solar PV energy system was designed and evaluated was designed and evaluated for the geographic location and metrological data of Dugda woreda, representing the central rift valley of Ethiopia. Performance testing were conducted on sunny days of April month and with time intervals of from 9:00 am to 5:00 pm, again the respective solar radiation ranges between 385.8 to 862.2 W m^(-2) h^(-1). The solar photovoltaic pumping has been evaluated with the head levels of 10, 12, 15, and 18 m. Accordingly the result showed that, PV system size can irrigate a tomato field of 0.33-0.75 ha with a mean daily water use of 8.7 and 17.4 m^3 〖day〗^(-1) at head levels of 10 and 18 meters, respectively. After evaluation, the maximum water flow rate has been at the midday day from 12:00 am to 1:00 pm. Comparative economic evaluation of the solar-powered water pump system and diesel pump devices were done using cycle cost breakdown and the cost of water per unit volume. Thus the long term economics of water pumping using solar photovoltaic and diesel pumping systems showed a cost of 1.33 〖ETB m〗^(-3) and 3 ETB m^(-3), respectively. The result demonstrated that photovoltaic water pump systems are more affordable for the long-term services of small to medium-scale farms than gasoline water pumps.
Design and Development of a Model Smart Storage System
Authors: IDAMA Omokara , EKRUYOTA Ovuakporaye Godwin
Published: June 2023

Food security has become a global major problem, due to the rapid increase in population growth. This has necessity the development of an effective agricultural products’ storage system, to alleviate the problem of food wastage. This study was embarked upon to develop a prototype of universal smart storage system for farm products, by using the internet of thing (IoT). The storage structure consists of four principal constituents which were; the power source, storage chamber, central processing system, and peripheral component interconnect (PCI) heater and PCI fan. The developed model was tested at a pre-set temperature and relative humidity of 32C and 62% RH respectively. The results revealed that the developed system had an efficiency of 85%. Though, the smart model had a failure rate of 15%, this smart prototype is a major breakthrough in the production of automated storage system for agricultural products.
Effect of Compound (NPSB) Fertilizer Type on Yield and Nutrient use Efficiency of Maize (Zea mays L.) at Beko Village in Yeki District, Southwest Ethiopia
Authors: Wedajo Mulisa Abdi , Kidanu Selamyihun , Reggasa Alemaheyu
Published: June 2023

Farmer in different parts of Ethiopia uses a similar type of fertilizer and amounts that are below the crop requirements, even the low soil fertility which limits crop production in general. To solve the over-blanket fertilizer application over different agroecology Ethiopian Soil Information System (EthioSIS) mapped the soil fertility and recommended types of fertilizer for a specific location. A NPSB type of fertilizer where recommended for Beko village, but the rate of this fertilizer type was not studied so far. So, this field experiment was conducted to determine the rate of NPSB fertilizer type and nutrient use efficiency of maize during the 2018 cropping season. A total of eight treatments with four replications were laid out in a factorial randomized complete block design. Treatments were control (zero fertilizer), previously blanket recommended nitrogen and phosphorus (92 N+ 69 P2O5) kg/ha, 150 NPSB +100 urea +100 K2O kg/ha, 200 NPSB +100 urea + 100 K2O kg/ha, 250 NPSB +100 urea +100 K2O kg/ha, 150 NPSB +150 urea +100 K2O kg/ha, 200 NPSB +150 urea +100 K2O kg/ha and 250 NPSB +150 urea +100 K2O kg/ha. Data were statistically analyzed by statistical analysis system (SAS) and mean treatment differences were compared by least significant differences (LSD). An analysis of variance indicated that application of NPSB fertilizer was not influenced plant height, ear height, ear length, cob length, number of ears per plant, thousand seed weight, harvest index, and shelling percentage as compared to the previously blanket recommended Nitrogen and Phosphorus (NP) fertilizer but grain and above-ground dry biomass were influenced except the application of 150 NPSB +100 urea. Application of 250 NPSB + 100 urea gave the highest maize grain yield (8828.2 kg/ha). Application of NPSB fertilizer improved the nitrogen and phosphorus use efficiency of maize compared to the previously blanket recommended NP. The highest N use efficiency (64.75 kg/ha) was obtained from the application of 200 NPSB +100 urea, while the lowest N use efficiency (23.89 kg/ha) was from the previously blanket recommended NP fertilizer. As economic analysis indicated that the application of 150 NPSB +100 urea is recommended for the study area.
Competence of Cow Manure as a Sustainable Feedstock for Bioenergy and Biofertilizer Production
Authors: Aremanda Ramesh Babu , Debretsion Semere , Tesfalem Samuel , Menghisteab Robiel
Published: June 2023

Livestock development sector remained conspicuous in many developed and developing countries. Nevertheless, animal manure management became an increasing concern relative to environmental and economic constraints. The daily cow manure varies between 60-85 kg per 1000 kg of body biomass. Thus, 33 to 70 % of biomass could be recovered in the form of cow dung for value added products such as bioenergy and biofertilizer. Halhale dairy farm of Eritrea has a potential to produce approximately 25 tonnes of fresh cow manure per day. Proximate analysis of Halhale dairy manure (HDM) revealed that it contains a mean value of 14.35% of total solids, which inherently composed of 64.8% of Volatile solids and 23.3% of ash content. Detailed elemental analysis using X-ray fluorescent showed that it has 43.1% of C, 0.31% of S, 0.21% of P and 1.18% of K. Hydrogen and nitrogen contents of 4.57% and 1.58% were evaluated for HDM. Thermophysical parameters such as PH, SG and lower heating value(LHV) estimated as 7.025, 1.68 and 19.97 MJ kg-1 respectively. Significant LHV values indicate the aptness of HDM for fuel substitute. In addition, estimated C/N values of 25.68-27.3, ensure their best suitability for the biogas generation. Rich organic matter and high moisture content in HDM support large number of earthworms in vermicomposting. HDM have showed excellent N:P2O5 of 3.84 to favor the growth of any crop. Higher Si content of 4.32% along with desired micronutrients of 0.043% of Zn, <0.02% of Cu and 241 ppm of Mn, were measured for HDM samples. The effect of sodicity on soil measured in terms of sodium absorption rate (SAR), and a mean value of 0.84 was estimated for HDM.
Effects of Various Hydroponic Systems in Increasing Caisim (Brassica Chinensis L.) Productivity Under LED Grow Light
Authors: Manggala Braja , Debra Malinny , Chaichana Chatchawan , Syahputra Wahyu Nukholis Hadi , Lutfi Musthofa
Published: June 2023

Hydroponics has been proven to increase crop production, particularly for leafy vegetable families, significantly. In addition, the hydroponic system can assist farmers in managing water and nutrition; as a result, this method is appropriate for sustainability as a real action to prevent further environmental damage caused by agricultural production. Several hydroponics systems have been invented; however, to get high plant yields, a selection of the system must be done by looking at the characteristics of the cultivated plants. Furthermore, artificial environmental conditions, such as light, temperature, and humidity, must be adjusted to accommodate the plant's requirements in a closed hydroponic system.  In this study, three hydroponics systems (i.e., wick technique, Nutrient Film Technique (NFT), and Deep Flow Technique (DFT)) were compared for morphology features, including the number of leaves, leaf width, plant height, wet root weight, and fresh weight. Caisim (Brassica chinensis L.) was grown on a single shelf; this design was intended to maximize land utilization in a closed area. Caisim's growing condition was under blue-red LED light for 35 days with a 16-hour illumination time at a distance of 15 and 20 cm. At harvest time, Caisim morphology utilizing the NFT approach produced a more significant (P < 0.05) result than the wick and DFT methods. Furthermore, on fresh weight, the LED at 15 cm outperformed the wick, DFT, and NFT at 20 cm by 20%, 47%, and 33%, respectively. According to the findings, the NFT approach combined with a 15 cm spacing distance or a light intensity of 250 PPFD was better and significantly impacted Caisim's shape.
Determination of Lead and Cadmium level in cattle offals, water and feed in Omdurman locality –Sudan
Authors: Joda Sahar Mohammedan , Elnasri Hind Abdelaziz
Published: June 2023

This study was carried out to determine the level of Cadmiuum (Cd) and Lead (Pb)  in cattle meat, offals, water and feed samples. The samples were obtained from Al Muwalih area (Omdurman locality- Sudan). Laboratory analysis was carried out using Atomic Absorption Spectroscopy. Usually, animals are transported from theWestern region of Sudan to the capital city Khartoum, were after few months will be slaughtered for consumption. The highest concentration of Cd and Pb was observed in kidney and liver with a mean of 0.0302 ±0.003mg/g and 0.259± 0.008mg/g respectively. High levels of Cd and Pb were also detected in water and feed samples. It is thus important to supply safe feed for animals to safeguard animal health and reduce the risk of exposure of consumers to heavy metals.
The role and functions of soil in the Information and Knowledge Society
Authors: Cioruța Bogdan Vasile , Coman Mirela Ana
Published: June 2023

Much has been written about the soil over time, from different perspectives, however, the soil as an entity, as well as its role and functions are far from being fully recorded. In the Information and Knowledge Society, soil still has a significant role to play, in terms of its functions at the community level. We set out to make some scientific remarks and examples on these issues. Also, the soil is subjected to analysis as a cosmic-telluric-biotic product, in its gradual transition from the Hunting and Agrarian Society to the Society based on technology, information, and knowledge. What we have managed to summarize is a summum of definitions of the soil, and a conglomeration of functions, carefully nuanced and delimited, which open the way for the reader from the soil seen as a resource-support of the technosphere to the soil treated as a primary scientific concern.
Uptake of some heavy metal(oid)s by sunflower
Authors:   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Petrović Stefan , Mrmošanin Jelena ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Arsić Biljana ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Pavlović Aleksandra ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Tošić Snežana ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry
Published: June 2023

Plant parts of sunflower (Helianthus annuus L.): root, stem, leaf, and seed, as well as the soil on which this plant culture was grown were analyzed for the content of As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn using Optical emission spectrometry with inductively coupled plasma (ICP-OES). The samples were prepared by wet digestion. To assess the degree of bioaccumulation in plant parts and the translocation of the examined elements from the roots to the above-ground plant parts, the Biological Concentration Factor (BCF), Mobility Ratio (MR), and Translocation Factor (TF) were calculated. BCF and MR values are less than 1 for all elements while TF (leaf/root) values for As, Cd, Cu, Fe, and Mn and TF (stem/root) values for Cu are higher than 1.
THE MOORE-PENROSE INVERSE OF TRIDIAGONAL SKEW-SYMMETRIC MATRICES. I
Authors: Hakopian Yuri R. , Manukyan Avetik H. , Mikaelyan Hamlet V.
Published: June 2023

The present work is devoted to deriving closed form expressions for the elements of the Moore-Penrose inverse of tridiagonal real skew-symmetric matrices. In the first part of the work we obtain results, concerning matrices of even order. A calculation approach for the generalized inverses of odd order matrices is provided.
LINEARITY OF $n$-ARY ASSOCIATIVE ALGEBRAS
Authors: Harutyunyan David N.
Published: June 2023

In this paper n-ary regular division associative algebras are discussed.  It is shown that every operation in n-ary regular division associative algebra will be endo-linearly represented over the same binary group. Schauffler like theorem will be proved for those algebras.