bluuebunny/crossref_metadata_2025 huggingface dataset:
Hydrodynamic Cavitation as Pretreatment for Removal of Hardness From Reverse Osmosis Reject Water
Authors: Medina Collana Juan Taumaturgo , Hurtado Denis Gabriel , Ramirez David Mitma , Gonzales Juan Pedro Sanchez , Jimeenz Santiago Rubiños , Huamani Jimmy Aurelio Rosales , Tasso Ulises Humala , Llanos Segundo Alberto Vásquez
Published: June 2023

In the present investigation, the treatment of reverse osmosis reject water hardness by hydrodynamic cavitation with the addition of sodium bicarbonate was studied. Hydrodynamic cavitation (HC), which is formed as a result of fluid pressure and velocity variation, has attracted great attention in industrial wastewater treatment due to its simple design and ease of operation. The influence of wastewater recirculation flow rate and the number of holes in the metal plate on the percentage removal of calcium hardness was studied. The study used a two-factor factorial design with three levels, plates with( 3, 5 and 9 holes)and a recirculation flow rate of (0.6, 1 and 1.5 L/min) with a treatment time of 60 minutes. Calcium hardness, total dissolved solids, pH and liquid temperature were evaluated as a function of time. The results show that as the flow rate and the number of orifices increase, the percentage of hardness removal increases. A linear correlation of hardness removal with respect to flow rate and number of orifices in the metal plate is also observed. For the recirculation flow rate of 1.5 L/min and a plate with 9 holes, a maximum removal rate of 66.76 % was achieved. It was also observed that the temperature increases as a function of time, reaching up to 75°C, while pH and total dissolved solids decrease during the treatment time. Hydrodynamic cavitation represents an environmentally friendly mechanical treatment technology and, considering that the removal efficiency is higher than 60%, it is an alternative as a pretreatment for the removal of water hardness.
Covid-19 Media Coverage and Stock Return
Authors: Obeidat G. , Almasarwah Dr. Adel , Almaharmeh Dr. Mohammad , Ata Dr. Baha Eddin Bani
Published: June 2023

This study empirically investigates the influence of news coverage related to COVID-19 and UK-wide stock market returns. A robust regression model is applied, and demonstrates the asymmetric dependence between stock market data and coverage of COVID-19 including media items, fake news and contagion. The study findings point to the benefits of utilising appropriate communications channels more strongly to minimise financial disruptions related to COVID-19. This particular research appears to be amongst the first research to consider both Covid-19 media coverage and stock return. Our data is limited for only a single country. More clarification for Covid-19 need qualitative understandings into UK market. The control variables fundamentally partial in this topic
Undamped, Damped and Forced Motion, Physical Simulation with the Geogebra Tool
Authors: Saravia Reynaldo Campos , Chávez José Antonio Manco , Arroyo Nicolas Silver Manco , Olivares Jorge Antonio Crisóstomo , Carhuatocto Jeannina Del Alva Huaman , Montenegro Luz Petronila Blas , Hinostroza Mary Rosaura Diaz , Puga Nancy Barazorda
Published: June 2023

Currently due to the pandemic situation that has affected the world community without distinction of languages, customs and creeds, technology was incorporated massively to achieve the continuity of progress in research, and development of culture and academic education, through this progress. As an introduction we can mention that this research is achieved by the need to do physics using other tools easy to manipulate with basic programming knowledge, likewise in the repositories there are many other studies that applied computationally the development of simulations of different physical phenomena. The method to use is the GeoGebra tools applying the basic syntax that is obtained by entering the equations in the input bar of the GeoGebra software already preset, being these equations calculated many times by students using differential equations, which obtains the solution equation dependent on mass and time, in this way the simulation, undamped, damped and forced motion are achieved, with the aim to show in this research that physics can be done using tools for academic use, due to this software is not exactly a research tool, but it can simulate phenomena that have already been shown in experimental and computational laboratories. The results obtained are very interesting since they present an originality in its simulation in an objective way showing dynamically the oscillation and the appearance of the functions that correspond to it in the development of the movement of the spring mass system.
Analysis on Value of 12 Verses Gurindam by Raja Ali Haji in the Context of Learning Islam in Early Childhood (PAUD)
Authors: Fauziddin Mohammad , Lestari Gunarti Dwi , Mariana Neni , . Hendratno , Sukartiningsih Wahyu
Published: June 2023

The phenomenon that occurs today is that many children have smart academic problems but few children have not reflected akhlakul karimah to the surrounding environment which will have a negative impact when children grow up later. Islamic religious learning in early childhood education is the most basic thing that needs to be introduced to early childhood. One of the local wisdoms that can be applied in fostering children's Islamic religious education is Gurindam 12 by Raja Ali Haji. The purpose of this research is to analyze the value of Gurindam 12 by Raja Ali Haji in the context of Islamic religious learning in early childhood (PAUD). Systematic literature revuew (SLR) in this study by reviewing references regarding the value of gurindam 12 couplets through google scholar. The results show that the values obtained in Gurindam 12 are Islamic values, faith values, social and ethical values, starting to do useful things, ethical values and leadership values and leadership systems.
Teaching Dutch as a Foreign Language in Sociology: Insights into Challenges and Best Practices
Authors: Arnado Alvic A. , Aperloo Josephine L.
Published: June 2023

This study aimed to investigate the challenges and best practices in teaching the Dutch language in undergraduate Sociology courses at Caraga State University in the Philippines. The research employed a descriptive correlational research design and gathered data on demographics, motivation, perceptions, effectiveness of teaching methods and strategies, cultural competencies, and critical thinking skills using a survey questionnaire. The results revealed that most participants were female and were motivated to learn Dutch for academic or professional reasons. Although the students had a positive perception of learning Dutch, they faced significant challenges such as limited resources and materials, qualified and trained instructors, limited student interest, and difficulty in learning the language. The study highlights the importance of changes in language policies to promote multilingualism and linguistic diversity, considering learners' linguistic backgrounds and needs in language education, and using practical and effective teaching strategies to facilitate language learning. Future research should investigate the efficacy of different teaching methods and strategies. This study offers valuable insights into the challenges and best practices in teaching foreign languages in undergraduate Sociology courses in the Philippines and can contribute to the development of language education policies and practices
Elementary School Teachers’ Proficiency: Philippine Professional Standards under Flexible Teaching Modality
Authors: Maloloy-on Melisa C , Arnado Alvic A
Published: June 2023

The study evaluated the teaching proficiency of elementary school teachers in Nasipit, Agusan del Norte, Philippines, under flexible teaching and learning modality based on the Philippine Professional Standard for Teachers (PPST) using a descriptive-correlational research design and stratified random sampling. The research aimed to investigate the teachers' proficiency in fostering education for sustainable development by applying its principles to teaching and learning activities. The study found a significant relationship between teachers' proficiency level based on the PPST and their teaching performance. Regression analysis revealed that Content Knowledge Pedagogy, Diversity of Learners, and Professional Growth and Professional Development are significant predictors of teaching performance. These findings are consistent with previous studies emphasizing the importance of teachers' subject matter knowledge, pedagogical content knowledge, and multicultural education in promoting student learning and improving the quality of education. Ongoing professional development can enhance teachers' effectiveness in the classroom, as demonstrated by the significant contribution of Professional Growth and Professional Development to teaching performance
Mechanical Resistance and Thermal Conductivity of Adobes for the Walls of Rural Dwellings in Extreme Minimum Climatic Conditions
Authors: Quispe Germán Belizario- , Mendoza Alfredo Pelayo Calatayud- , Ramos Edilberto Huaquisto- , Betancur Heber Nehemías Chui- , Ruelas Eliseo Pelagio Fernández- , Gutiérrez Ángel Canales-
Published: June 2023

The aim was to determine the mechanical resistance and thermal conductivity of adobe bricks in extreme minimum weather conditions, which serve two physical functions: greater compression strength and lower thermal conductivity for the construction of rural housing walls in the Peruvian highlands. The study was experimental, where the soil texture class was determined using the Bouyoucos hydrometer. An experiment was designed with 58 adobe bricks with different composition percentages: clay soil, sand, sheep manure, and chilligua. The compression strength was measured with a hydraulic press and the thermal property was measured using a thermal conductivity meter for construction materials. Then, a polynomial regression model was estimated for the behavior of the compression strength and thermal conductivity of each adobe brick, and finally, classical optimization techniques were employed. The optimal adobe brick mixture resulted from the combination of inputs in the following proportions: 83.0% clay soil, 7.1% sand, 7.5% sheep manure, and 2.4% chilligua. This mixture generates greater compression strength of 31.85 kg/cm2 per unit of thermal conductivity in W/m·°K.
Achieving School-Based Management Level III: Practice, Experiences, and Challenges Among Key Players
Authors: Silabay Annie C. , Alegre Emybel M.
Published: June 2023

The study examined the levels of practice, experiences, and challenges in achieving School-Based Management Level III among key players in the Division of Agusan del Sur. It used quantitative research methodology. There were 133 participants in the study who were randomly chosen. The study used survey questionnaires that gathered data on the professional profile of the participants, level of SBM practices, experiences, and challenges in achieving SBM Level 3. It used frequency count, percentages, weighted mean, and multiple regression analysis. The study revealed that the SBM practice showed a clear school leadership, governance structure, and work arrangement. The schools also practiced being protective of all learners through inclusive, safe, equitable, involvement of parents, and professionally developed teachers. There was a needed focus on some SBM essential practices, namely leadership networking, critical and creative teaching methods, accountability assessment criteria, and monitoring and evaluation. Some positive experiences with SBM Level III were increased participation, collaboration, support, trust, and confidence with and among school stakeholders. Data shows improved transparency of fund utilization. Challenges surfaced in the implementation that includes instructional materials and equipment, minimal school stakeholders’ capacity to support schools, and lack of school facilities. Provisions of relevant training would sustain the positive SBM practices is suggested. Also, pursuing higher education and ensuring gender-balanced SBM leadership structures and increasing the length of designations of SBM key players would increase SBM level of practices of schools.
Distribution and Export Logistics: Commercial Development of the Millenary Product Chenopodium Quinoa
Authors: Carazas Rafael Romero- , Cabe Robinson Bernardino Almanza- , Soto Fabiola Cruz Navarro , Jiménez Juan Carlos Guevara , Castañeda Doris Rosario Yaya , Cristobal Yta Zunilda Olortegui , Jilaja Dometila Mamani- , Casa-Coila Manuela Daishy
Published: June 2023

The objective of this article was the commercial development of the millenary product Chenopodium Quinoa from a perspective of distribution and export logistics. Methodologically, it was a documentary research that used content analysis as a strategy for the review of the texts, which were retrieved through the following databases: a) Scopus, b) Scielo, c) Web of Science - WoS and, d) Google Scholar, and selected based on the criteria: (a) original or review scientific articles, (b) published in Spanish or English language, (c) temporal delimitation to the last eight years (2015-2022), (d) citable documents, resulting in a total of fourteen reviewed articles (n=14). The bibliographic analysis allowed discriminating from an analytical point of view the supply chain from the quinoa production source, markets and logistic corridors to its export point. This literature review demonstrated that the creation of a more efficient supply chain (distribution logistics) would be beneficial for all parties involved, as it would expedite the circulation of the product, improve responsiveness to customer needs and encourage creative problem solving in the service of distribution and export, validating it from a documentary and bibliographic perspective.
Using Reigeluth’s Model to Increase Achievement and Mathematical Literacy Self-Efficacy for Eleventh Grade Students
Authors: Elsayed Abdelkader Mohamed , Albaraami Yussef Ahmed
Published: June 2023

Although mathematical literacy self-efficacy (belief that one can do mathematics) is essential to success in learning mathematics, it is not explicitly addressed in many educational institutions. The current paper used Reigeluth’s Model of increasing achievement and self-efficacy for mathematical literacy. It is one of the educational models that depend on the constructivist theory that contributes to helping the student to link his or her previous information with his or her new experiences. The sample consisted of 141 male and female students in the eleventh grade from Al Nahda School in Dhofar region, Oman. Students in the experimental group (N = 70) received instruction according to the Reigeluth model, and students in the control group (N = 71) received instruction in the traditional way. Students achievement and self-efficacy in mathematical literacy increased significantly more for the experimental group. There was relationship between achievement and self-efficacy on mathematical literacy for the student sample. It is recommended that the mathematics curriculum for all courses of education be prepared according to the Reigeluth model, and that mathematics teachers be trained in modern models for developing the achievement and self-effectiveness of their students’ mathematical literacy.
Development and Validation of Motivational Manipulative Learning Materials (MMLMs) for the Least-Learned Competencies of Grade 9 Trigonometry
Authors: Tagupa Eubert R. , Arnado Alvic A.
Published: June 2023

This study presents the development and validation of Motivational Manipulative Learning Materials (MMLMs) aimed at improving the least-learned competencies in Grade 9 trigonometry. The study focuses on enhancing mathematics performance, addressing teaching challenges, and emphasizing real-life applications of trigonometry. Specifically, the competencies identified as least developed include effectively illustrating the six trigonometric ratios and accurately determining the trigonometric ratios of special angles. The study utilizes the combined Mean Percentage Score (MPS) to identify the least-learned skill and to inform the creation of the MMLMs. The developed MMLMs, named "Wheel of the Trigonometric Values," undergo validation by usability and content experts. The content validity criteria, including alignment and organization, demonstrate high mean scores, indicating the suitability of the MMLMs for Grade 9 Math. Similarly, the usability validation criteria, such as "other factors" and "expenses," receive positive mean scores. The evaluations from the experts suggest that the MMLMs are highly suitable and appropriate for enhancing the teaching and learning experience in Grade 9 Math. The findings of this study contribute to the field of mathematics education by providing educators with effective tools to address the least-learned competencies in trigonometry, promoting student engagement and understanding. Future research can explore the implementation and impact of the MMLMs in classroom settings to further assess their effectiveness in improving trigonometry learning outcomes.
Leadership and Service in the Police Context_A Qualitative Study
Authors: Purbiyantari Wahyu , Zauhar Soesilo , . Suryadi , Hermawan Romy , Riyadi Bambang Slamet
Published: June 2023

This research aims to explore the leadership and service in the Indonesian National Police. This research is very significant for improving police policy due at the ontological level and sociological level. The problem is very interesting to be explored by conducting qualitative research method.  Data were collected through in-depth interview, documentation and observation. Data were analyzed by using data reduction, data display and data verification and supported by triangulation. The results are categorized into several themes. Based on these results as per ontological level and sociological level are useful for improving police policy and practice and providing information to stakeholders related as inputs for making better regulation on police policy as well as for public officials and practitioners.
Richard Lovelace's Selected Animal Fables and the Transformation of the Emblem Tradition
Authors: Ismail Araz
Published: June 2023

It is difficult, if not impossible to give a comprehensive, cogent definition of the ‘emblem’ to accommodate its diversity as a genre, a definition that covers all the works produced under the name emblem during the sixteenth and seventeenth centuries. It is, therefore, neither necessary nor possible here to discuss definitions for such a large and eclectic field like the emblem tradition. Soon after its emergence, the emblem became an accepted form and exercised a vast influence over literature, art, and decoration of the period.  Many writers were fascinated by it, including English poet Richard Lovelace (1616-1657), who used strategies of emblem books in his representation of creatures by integrating pictures and texts in a genre. This paper is an attempt to read Lovelace's poems The Grasshopper, A Fly Caught in a Cobweb, The Ant, The Snayl ‘The Snail’, and The Falcon in the light of the emblem tradition, showing how Lovelace uses the tradition. Focusing on his animal fables, the paper illustrates the different ways in which Lovelace employs or transforms the strategies of emblem books. Various references will be made to the poems to explain how the poet capitalises on the emblem heritage, while at the same time adapting it by rewriting the original story behind the emblem to channel his staunch political views in favour of the Royalists. The paper contends that, without referring to the emblem legacy accessible to Lovelace, certain aspects of his poetry would remain ambiguous.
The Effect of Using the QR Technique In Teaching the Skill of Dribbling in Basketball to Healthy and Deaf Students During COVID-19
Authors: El-Saleh Majed Saleem , Alghazo Emad M. , Alkhalaileh Mohannad S. , Abusini Bushra S.
Published: June 2023

This study aimed to identify the effect of using the QR technique in teaching the skill of dribbling in basketball to deaf healthy students during the Corona pandemic, as well as to identify the differences between the use of the QR technique and the traditional method, depending on the condition variable. The researchers used the experimental method in this study, and a deliberate sample of (24) healthy and deaf students was chosen, who were distributed equally into two experimental and control groups, and two measures were made, before and after, of the skill level of the sample, during which they applied the program, which lasted for a month, three days a week. per group. After collecting the data and using the necessary statistical treatments, it was found that there is an effective effect of using the QR technique, and there are statistically significant differences between the two measurements in favor of the post-measurement for both groups. As for the differences between the two groups, the development was in the level of skill performance in favor of the experimental group. The results also indicated that there were no statistically significant differences due to the variable of the type of students. In light of the results, the researchers recommended the need to provide the research results to each of the Ministry of Education, the Olympic Committee and the Basketball Association, and the adoption of technology as an educational guide for teachers and coaches in anticipation of any future emergency, and the need to hold specialized courses for university professors, teachers and trainers to train on creating content using the QR technology, and to conduct Similar studies to compare deaf and healthy people and extend them to include both sexes and in other games.
Effect of Dietary Patterns on Gastrointestinal Symptoms among Children with Autistic Spectrum Disorder
Authors: Al-Joburi Lina N Sajad , Hasan Abdul Mahdi A Hasan , Al-Aaraji Ameera Jasim
Published: June 2023

Objective(s): to determine the effect of   dietary pattern on gastrointestinal symptoms among children with autistic spectrum disorder. Methodology: A descriptive correlational study designed to determine the effect of   dietary pattern on gastrointestinal symptoms among children with autistic spectrum disorder for the period of October 20th 2021 to May 15th 2023. A nonprobability, purposive , sample of (150) parent of children with autistic spectrum disorder is selected for the purpose of the study. All parents have signed consent form for their agreement to participate in the study and to ensure confidentiality, as well as to confirm the ethical considerations. A developed questionnaire is used for the purpose of the current study. The questionnaire is comprised of (4) parts that include: parents’ socio-demographic characteristics (15) item; children’s socio-demographic characteristics (12) item; dietary patterns (16) item and gastrointestinal symptoms (14) item. Content validity of the questionnaire is determined through panel of (20) expert in the fields of Pediatric Nursing, Pediatric Medicine and Community Health Nursing. Internal consistency reliability of the questionnaire is obtained through the use of split-half technique. Cronbach alpha correlation coefficient is computed for such reliability; (r=0.81) for dietary patterns and (r=0.78) for gastrointestinal symptoms. Data are collected through the use of the study questionnaire. Data are analyzed through the use of the descriptive statistical data analysis approach of frequency, percent, mean, standard deviation, total scores and range and inferential statistical data analysis approach of multiple linear regressions. Results: The study findings indicate that children have experienced problems with their dietary patterns and such patterns have highly significant effect on gastrointestinal symptoms among children with autistic spectrum disorder evidenced by highly significant p-value of (0.001). Conclusion: The study confirms that there is highly significant effect between dietary patterns and gastrointestinal symptoms among children with autistic spectrum disorder.
Strategy for Accelerating Regional Development Reached Through Digital Governance
Authors: Sutrisno Edy , Kurniawati Nila , Reza Izzul Fatchu , Nugroho Alih Aji , Khaerunisa Devina
Published: June 2023

Regional areas in developing countries was trapped in high poverty rates. Previous studies have shown that the use of ICT can indirectly increase the productivity access of the poor. Aim: This study aims to formulate a digital governance strategy to support accelerated regional development in Lebak and Central Lombok districts, Indonesia. Materials: This study using a descriptive method with a mixed approach. Data was collected through interviews, documentation studies, and also distributing questionnaires to carry out weighting in the framework of strategy formulation. Data analysis was carried out through IFAS and EFAS analysis as well as matching through Internal External and SWOT matrices. Results: Research result and analysis shows that Lebak Regency and Central Lombok Regency are included in the average internal and external position and are in cell V. Conclusions: the development of Lebak and Central Lombok Regency in development through digital governance can be carried out by maintaining and maintaining existing strategies, expanding and developing regional potential through digital governance.
Lean Production for Reducing Wastes in Convex Lens Production Process
Authors: Kiatcharoenpol Tossapol , Rattanapakdee Wanchai , Klongboonjit Sakon
Published: June 2023

This research aimed to investigate the waste generated during the production of traditional convex lens. The study proposed a method to eliminate such waste by utilizing value stream mapping (VSM) as a tool for data collection and waste identification throughout the entire production process. Through the analysis of data using VSM, three specific types of waste were identified. These included losses resulting from ineffective utilization of the oven machine during the polymerization process, inefficiencies in personnel performance, and inappropriate working procedures. To address these waste issues, the task employed the work study method to optimize machine utilization, develop efficient work processes for personnel, and improve inappropriate procedures to enhance overall efficiency. The ECRS method was utilized to improve the process of waste elimination. The research findings demonstrated substantial reductions in waste within the production process. Specifically, the total throughput time decreased from 661.07 minutes to 480.68 minutes, representing a reduction of 27.29%. Furthermore, the total production lead time decreased from 1.20 days to 0.94 days, indicating a reduction of 21.67%. In terms of personnel, the workforce decreased from 42 employees per shift to 29 employees, reflecting a decrease of 30.95%. Finally, the number of oven machinery units required for all three shifts decreased from 3 ovens to 2 ovens, resulting in a reduction of 33.33%.
Analysis of Presentation of Statistical Data in University Reports
Authors: Verastegui Benjamin David Carril , Soto Carlos Enrique Garcia Soto , Cavero Francisco Rafael León , Virhuez Nil Edinson Mendoza , Huaman Jose Cayetano Vergaray
Published: June 2023

Considering the current trends in presenting scientific information through academic papers, scientific articles, and professional reports, it is pertinent to know the relevance of data presentation. In this sense, this paper has developed a documentary review on the display of statistical data in university reports, showing the best visual strategies to present information interestingly and globally. For this purpose, many documents from different open-access sources have been analyzed, and the most commonly used methods that offer the best results have been selected. Finally, the importance of data presentation in university papers and its relevance for the argumentation of scientific information and the display of results is presented
Thermal Conductivity of Buckled and Puckered Arsenene: An Equilibrium Molecular Dynamics (EMD) Simulation
Authors: Calo Ferdinand Michael , Lazarte Jessa Mae , Bedrijo D’Lanor Rose
Published: June 2023

This study aims to calculate the thermal conductivity of buckled and puckered arsene using Molecular Dynamics simulation through Large-scale Atomic/Molecular Massively Parallel Simulation (LAMMPS). Arsenene is the monolayer of arsenic, that belongs to one of its allotropes, the gray metallic arsenic. The temperature varied from 100K, 300K, 500K, and 700K with a fixed dimension of 10nm x 50nm. Also, the length of the material varied from 10nm, 20nm, and 30nm. 40nm and 50nm at a fixed temperature of 300 K with constant width of 10nm. Results show that the main contributor to the increase of thermal conductivity is due to the phonon means free path. As the length increases, the thermal conductivity also increases because of its long mean free path. Moreover, the decreasing thermal conductivity as to the increase in temperature is due to phonon mean free path shrinking, resulting in a reduction in thermal conductivity. At room temperature, the thermal conductivity of buckled and puckered arsenene is found to be 1.8 W/mK and 1.3 W/mK, respectively. This study will provide fresh insight into the thermal properties of buckled and puckered arsenene, which will be useful for nanoelectronics applications.
Monte Carlo Simulation Study on the Optimal Neutron Energy and Boron Concentration for SARS-COV-2 Inactivation through BNCT
Authors: Auxtero Eulogio, Jr , Lazarte Jessa Mae , Payac Orneth
Published: June 2023

Researchers have been exploring various radiation therapies to treat COVID-19 patients ranging from mild to severe. One technique that has shown promise is Boron Neutron Capture Therapy (BNCT). This therapy involves administering of 10B isotope to the targeted area, which is then exposed to chargeless neutrons. These neutrons can be absorbed by areas with high concentrations of 10B. When the neutrons react with the 10B (10B + n?7Li + 4He reaction), it results in the transfer of highly ionizing energy, causing confined lethality and destroying the targeted area. In this study, we used the Particle and Heavy Ion Transport Code System simulation to evaluate whether Boron Neutron Capture Therapy could be effective as an anti-viral therapy. The study involves creating a model of the SAR-COV-2 target phantom's geometry and defining its chemical composition to collect data. It was found out that when tested at different neutron energies and concentrations (30 ppm, 50 ppm, and 100 ppm), a sufficient amount of dose to cause biological damage to the Sars-CoV-2 enveloped protein could be achieved with 30 ppm boron concentration and a neutron energy of 1.0x10-10 MeV.
A Novel LoRa-Based Platform for Remote Monitoring of Large-Scale Rice Fields
Authors: Doan Thanh-Nghi
Published: June 2023

The utilization of wireless sensor networks is widespread across numerous industries, including smart agriculture, where the need to remotely monitor agricultural production environments on a large scale is imperative for improving farm product quality and preserving the ecosystem. In this paper, a novel and efficient wireless sensor network framework is presented, which employs LoRa technology to facilitate remote environmental monitoring during agricultural cultivation. Our proposed network framework possesses the capability of long-range data transmission, secure data transfer from source nodes to gateway, high reliability, and easy deployment for large-scale farm monitoring applications. The effectiveness of our model was evaluated in An Giang province, Vietnam, with monitoring indicators encompassing temperature, air humidity, soil moisture, pH of water, CH4, and NH3. The findings reveal that the wireless sensor network model for remote monitoring of the rice cultivation environment fulfills the requirements of good and complete data transmission, high data network security, and a long signal transmission distance of up to 3.5 km at a reasonable cost.
Composition and Biological Activity of Fetoplacental Tissues-Derived Cryoextracts Being Differently Obtained
Authors:   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Repin Mykola , Chizh Yuliia ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Marchenko Larysa ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine, Govorukha Tetyana ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine, Narozhnyy Stanislav ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Published: June 2023

The protein-peptide composition of fetal tissues (FTCEs) and placenta (PCE) cryoextracts of rats was investigated by gel permeation chromatography. Cryoextracts were derived from tissue homogenates using the freeze-warming modes: 1 – single (–20°С); 2 – double (–20; –196°С) and 3 – triple (–20; –196; –196°С) ones. The biological activity of cryoextracts was in vitro evaluated by the phagocytic activity of neutrophil granulocytes (NG) of the blood of intact rats after incubation with an inactivated culture of Staphylococcus aureus (2 × 109 cells/ml) for 45 and 120 min for the concentrations of extracts in the incubation medium: 1.6; 3.1; 6 mg/ml in terms of dry substance. The use of mode 3 ensured a greater yield of total protein and low molecular weight compounds of a protein-peptide nature in the composition of cryoextracts. The content of low-molecular-weight fractions in FTCE exceeded that in PCE, regardless of the obtaining mode. Incubation of NG with cryoextracts did not significantly increase the number of neutrophils which entered into phagocytosis. However, all the samples of PCE and FTCE were characterized by a dose-dependent rise in the NG absorption activity during the 45-minute incubation compared to the control.
Optimization of gastroesophageal reflux disease treatment with concomitant obesity: new approaches and perspectives.
Authors:   Kharkiv National Medical University, Oparin O.A. , Kashyrtseva O.M. ,   Kharkiv National Medical University
Published: June 2023

In recent decades, there has been a rapid increase in obesity among the working-age population. Excess weight is associated with an elevated risk of developing gastrointestinal pathology, including gastroesophageal reflux disease (GERD). The aim of this study was to investigate the effectiveness and rationale for the addition of tyrosine-2-alanylglycyl-phenylalanyl-leucyl-arginine diacetate (dalarin) to the standard GERD treatment regimen. Materials and Methods: A total of 110 study participants were divided into two groups: 40 patients with GERD without concomitant obesity and 70 patients with GERD and grade I obesity. One group received the standard treatment protocol, while the other group received dalarin as an additional medication. Disease progression was assessed after a three-week period using clinical, laboratory, and instrumental examinations. Results: The results of clinical, laboratory, and instrumental examinations provide evidence that combined treatment with the inclusion of dalarin surpasses the effectiveness of the standard treatment protocol in both the isolated GERD group and the GERD group with concomitant obesity.
Experience of using the platform of virtual clinical cases CASUS during the training of students at the department of internal medicine.
Authors:   Kharkiv National Medical University, Zhuravlyova L.V. , Oliinyk M.O. ,   Kharkiv National Medical University, Fedorov V.O. ,   Kharkiv National Medical University, Sikalo Y.K. ,   Kharkiv National Medical University
Published: June 2023

The development of medicine places increased demands on the quality of medical services. The quality of medical care and the quality of life of patients should be the basis for evaluating the professional performance of doctors. It is obvious that modern medical education must also correspond to the development of technologies and changes in the surrounding information environment. High requirements for the development of practical skills by medical students, the relevance of educational material and the approximation of the educational environment to the environment of practical medicine make virtual technologies a key direction in the development of medical education. The purpose of our study was to investigate the student’s attitude to work with virtual patients on the CASUS platform, to evaluate the quality of perception of this type of training and the degree of assistance in the process of forming clinical thinking skills. Materials and methods. Students were surveyed about their impressions of using the platform and the effectiveness of CASUS in improving clinical thinking. The survey was conducted using a Google form, which contained 10 questions. The questionnaire was available in Ukrainian and English languages. The results. Students answered questions about their attitude to working with virtual patients, as well as the positive and negative aspects of working on the CASUS platform. According to the interviewed students, the positive moments in working with virtual patients were: the format of a real dialogue with the patient, the availability of the latest research methods, instant feedback from experts, the convenience of the interface, the variety of clinical cases, the development of clinical thinking, and most importantly, the opportunity to test yourself as a doctor from the beginning of the dialogue with the patient to the diagnosis. Conclusions. Based on our experience and the obtained results of the conducted research, we found a significant positive effect of virtual patient technology in undergraduate medical education, the obvious advantages of using a virtual patient for the formation and improvement of clinical and diagnostic decisionmaking competencies have been identified.
Benefits of a therapeutic classic dry massage without lubricants.
Authors:   Ukrainian Institute of Arts and Sciences, Yalovyk A.V. , Butkevych V.V. ,   Ukrainian Institute of Arts and Sciences
Published: June 2023

The article discusses a long-standing historical discussion between specialists in massage practice regarding the feasibility, advantages and disadvantages of performing therapeutic classical massage with a dry method without the use of lubricants. An analysis of the scientific works of predecessors and contemporaries on the stated issues was carried out. The features of the structure and physiology of the skin and the effect of dry massage on it are revealed. Its advantages are described for both the patient and the massage therapist. The main reservations and contraindications to dry massage are determined. The main functions of the skin are given. It is noted that to ensure the permeability of substances and at the same time maintain the protective function of the skin, special conditions are necessary, which are ideally created by the water-lipid acid mantle of the skin on the stratum corneum of the epidermis. It has been established that maintaining the water-lipid acid mantle in an appropriate state is very important, because it forms a barrier that provides mechanical, chemical and microbial resistance of the skin, prevents the loss of moisture from the epidermis, promotes free breathing of the skin, makes it whole, smooth, healthy. kind. Given this, it is determined that an important aspect of skin health is its hygiene. Irregular skin care can cause skin diseases, but frequent washing with alkaline substances or cleansing with alcohols, ethers can destroy the water-lipid acid mantle and lead to undesirable consequences. Considering that healthy skin under normal conditions does not need additional lubricants, because they cannot reproduce the full range of properties of natural leather lubricant, but rather create an additional load: they slow down the process of peeling the stratum corneum, seal the sebaceous and sweat glands, cause allergic reactions. , inflammation, inhibit respiratory function, change the pH balance, destroy the water-lipid acid mantle, the issue of diversity in the practice of therapeutic massage requires special attention. That is why, in the context of this, the problem of studying the advantages of conducting therapeutic classical massage with a dry method without lubricants is actualized.
Perceived Disability-Based Discrimination in Health Care for Children With Medical Complexity
Authors: Ames Stefanie G. , Delaney Rebecca K. , Houtrow Amy J. , Delgado-Corcoran Claudia , Alvey Justin , Watt Melissa H. , Murphy Nancy
Published: June 2023

BACKGROUND AND OBJECTIVES

Disability-based discrimination in health care can lead to low quality of care, limited access to care, and negative health consequences. Yet, little is known regarding the experiences of disability-based discrimination in health care for children with medical complexity and disability. An understanding of disability-based discrimination in pediatrics is needed to drive change and improve care.

METHODS

We conducted in-depth, semistructured interviews with caregivers of children with medical complexity and disability. Participants were purposefully recruited through national advocacy and research networks. Interviews were conducted via video conferencing, recorded, and transcribed. Data collection and analysis occurred iteratively. An inductive thematic analysis approach with constant comparison methods was used to identify themes that form a conceptual framework of disability-based discrimination in health care.

RESULTS

Thirty participants from diverse backgrounds were interviewed. Six themes emerged, forming a conceptual framework of disability-based discrimination in health care. Three themes described drivers of discrimination: lack of clinician knowledge, clinician apathy, and clinician assumptions. Three themes described manifestations of discrimination: limited accessibility to care, substandard care, and dehumanization.

CONCLUSIONS

Children with medical complexity may face disability-based discrimination in health care. Themes describing the drivers and manifestations of discrimination offer a conceptual framework of disability-based discrimination. Understanding the drivers and acknowledging perceived manifestations can provide insight into improving patient care for children with disabilities.
Estimation of soil losses due to water erosion in the Dagua River Basin, Colombia
Authors: Martinez López Carolina , Menjivar Flóres Juan Carlos , Calero Mosquera Daniela
Published: June 2023

The Dagua river basin, in Colombia, is the most important source of water for the Valle del Cauca ecosystem, however, due to poor agricultural practices, it has been affected by water erosion. This study aimed at estimating soil erosion in the Dagua river basin, using the universal soil loss equation (USLE). The results show that most of the area presents erosivities that are between 1000-5000 MJ.mm.ha-1, corresponding to low and very low categories. On the other hand, erodibility ranged from 0.143 to 0.842 t. ha.h. MJ-1 mm-1 ha-1, which is framed in the categories from weak to extremely erodable, where the low to medium category predominates. Regarding soil losses due to erosion, it was found that more than 20% of each of the municipalities of Dagua, Restrepo, La Cumbre, and Vijes, showed high and very high erosion, particularly in the areas with bare soils and crops such as pineapple, contribute strongly, sometimes reaching over 1000 t ha-1 yr-1. Therefore, it is important to promote practices such as contour or contour planting, integrated crop cover management, land uses that integrate trees, and in more critical cases to consider ecological restoration processes.
Spatial distribution of porphyry copper deposits in Dehaj terrain: Implications for exploration
Authors: Habibkhah Narges , Hasani Hossein , Maghsoudi Abbas , Honarmand Mehdi
Published: June 2023

Magmatism is triggered and controlled by tectonic systems, and thus these processes play an irrefutable role in the deposition and emplacement of hydrothermal mineral systems. It is, therefore, paramount to recognize the tectonic processes that are genetically associated with hydrothermal mineral systems. This study seeks to address this caveat by recognizing the main tectonic processes that have controlled the distribution of porphyry copper deposits in Dehaj terrain, Central Iran. For this purpose, the spatial association of 31 known porphyry copper deposits, faults, and fractures were evaluated by fry, fractal, and distance-distribution analyses. The results of fry analysis revealed that mineralization has distributed through three different trends, namely NE, NW, and NS, which shows a clear association with the fault systems presented in the area. Also, the fractal method applied demonstrated that structural controls on mineralization have operated on two different scales, regional and local scales. Distance-Distribution analysis was further used to assess the spatial correlation between known porphyry Cu deposits and fault traces, supplementing the results of fry and fractal analyses by quantitative measurements. The synthesis of the results of these three methods shows that the NW-trending faults have plausibly controlled the magmatism at a regional scale; nevertheless, NE- and N-trending faults have probably operated at local scales controlling the channeling and emplacement of mineral-bearing fluids.
Sedimentological characteristics and their relationship with landsliding in the Bhilangana Basin, Garhwal Himalaya, India
Authors: Pandey Vijendra , Sharma Milap Chand
Published: June 2023

Every year during the Indian Summer Monsoon, large landslides occur in the Lesser and the Greater Himalayan rock formations, triggered by intense rainfall episodes coupled with physiography and anthropogenic activities. The present study investigates the slope failure mechanism's relationship with slope material compositions. Hence, sediment samples of 25 landslides were collected along the road corridors. These samples were collected from the Lesser and Greater Himalayan ranges and rock formations. The sediment was collected from the active landslides to understand particle size, clay content, moisture content, mineral composition, crystallographic structures, and the influence of geomorphic processes on the landslide failure processes. The samples were analyzed using a sieve, X-ray Diffractometry (XRD), and Scanning electron microscopy (SEM) to accomplish the study's objectives. The analysis indicates that the Lesser Himalayan meta-sedimentary rock formations have a high composition of fine and medium-size particles, lesser quartz mineral compositions with calcite, and a highly crushed and fractured presence, conchoidal fractures types of morphological features. Micrographs obtained from the schist and phyllite rock of the Lesser Himalayan origin shows highly sheared and crushing, crystal overgrowth; and, in turn, have a higher susceptibility to landslides. The relationship between slope materials and instability has shown a definite pattern in the study area. The debris flow and slump have a comparatively higher percentage of clay and silt compared to debris fall, debris slide, and rockfall. The particle size composition of sediment collected from the slip zone is significantly related to the types of landslides. The present study is helpful in understanding the sediment composition and slope failure mechanism.