bluuebunny/crossref_metadata_2025 huggingface dataset:
Acceptability of a Digital Adherence Tool Among Patients With Tuberculosis and Tuberculosis Care Providers in Kilimanjaro Region, Tanzania: Mixed Methods Study (Preprint)
Authors: Mtenga Alan Elias , Maro Rehema Anenmose , Dillip Angel , Msoka Perry , Emmanuel Naomi , Ngowi Kennedy , Sumari-de Boer Marion
Published: August 2023

BACKGROUND

The World Health Organization has recommended digital adherence tools (DATs) as a promising intervention to improve antituberculosis drug adherence. However, the acceptability of DATs in resource-limited settings is not adequately studied.

OBJECTIVE

We investigated the acceptability of a DAT among patients with tuberculosis (TB) and TB care providers in Kilimanjaro, Tanzania.

METHODS

We conducted a convergent parallel mixed methods study among patients with TB and TB care providers participating in our 2-arm cluster randomized trial (REMIND-TB). The trial aimed to investigate whether the evriMED pillbox with reminder cues and adherence feedback effectively improves adherence to anti-TB treatment among patients with TB in Kilimanjaro, Tanzania. We conducted exit and in-depth interviews among patients as well as in-depth interviews among TB care providers in the intervention arm. We conducted a descriptive analysis of the quantitative data from exit interviews. Translated transcripts and memos were organized using NVivo software. We employed inductive and deductive thematic framework analysis, guided by Sekhon’s theoretical framework of acceptability.

RESULTS

Out of the 245 patients who completed treatment, 100 (40.8%) were interviewed during exit interviews, and 18 patients and 15 TB care providers were interviewed in-depth. Our findings showed that the DAT was highly accepted: 83% (83/100) expressed satisfaction, 98% (98/100) reported positive experiences with DAT use, 78% (78/100) understood how the intervention works, and 92% (92/100) successfully used the pillbox. Good perceived effectiveness was reported by 84% (84/100) of the participants who noticed improved adherence, and many preferred continuing receiving reminders through SMS text messages, indicating high levels of self-efficacy. Ethical concerns were minimal, as 85 (85%) participants did not worry about remote monitoring. However, some participants felt burdened using DATs; 9 (9%) faced difficulties keeping the device at home, 12 (12%) were not pleased with receiving daily reminder SMS text messages, and 30 (30%) reported challenges related to mobile network connectivity issues. TB care providers accepted the intervention due to its perceived impact on treatment outcomes and behavior change in adherence counseling, and they demonstrated high level of intervention coherence.

CONCLUSIONS

DATs are highly acceptable in Tanzania. However, some barriers such as TB-related stigma and mobile network connectivity issues may limit acceptance.

INTERNATIONAL REGISTERED REPORT

RR2-10.1186/s13063-019-3483-4
Study Protocol: A Randomized controlled trial the effect of 12 weeks high-calorie expenditure multimodal exercise on healthy indices in overweight women. (Preprint)
Authors: nikoukheslat saeid , Abdollahi Diba Mitra , Sari Sarraf vahid , Amirsasan Ramin
Published: August 2023

BACKGROUND

High-calorie expenditure training in endurance athletes is normal and is used as an effective strategy among people with weight loss aims. Designing training protocol by walking, running, cycling and swimming and heart rate is usual among athletes and participants in health program activities. However, there is limited research on gym-based high-calorie expenditure training interventions with multimodal training programs in quantitative methods. therefore, the aims of the making a HC training program study are to: 1) describe the methodology and designing of training programs to cover target calorie expenditure according to trainability of overweight women, 2) determine the effect of HC workouts on conditioning, glycemic variables and body composition; 3) Evaluate the implementation of the intervention and results in comparison with standard calorie expenditure (SC).

OBJECTIVE

The aim of this research protocol was to present a method of high-calorie expenditure (HC) (3000-3500 calories/week) multimodal training program with daily tasks and details for 12 weeks, and compare its effects on glycemic indexes and body composition in overweight women to standard calorie expenditure (SC) (1200-1500 calorie/week) based on American College Sports Medicine (ACSM) guideline.

METHODS

Present study is an experimental research type with a pre-test/post-test design in three groups (two intervention groups and one control group). The first group is an exercise with high energy expenditure of about 3000-3500 kcal/week in the form of five sessions per week with an intensity of 50-75% VO2max and 60-80% of the target heart rate will be done. The second group of exercises with a standard energy expenditure of around 1200 to 1500 kcal, three sessions a week with an intensity of 60-75% VO2max and the third group was the control group. Daily calories are calculated through the international physical activity questionnaire (IPAQ) and daily calories are calculated by Nutrition 4 software.

RESULTS

The results of this exercise protocol were significant weight loss in both HC and SC groups. Also, significant changes were seen in percentage, muscle percentage and BMI of HC group. (P<.05)

CONCLUSIONS

If high-calorie expenditure can cause further reduction of body fat by improving glycemic indices in safe ways without any complications from these trainings, such training sit shows that we should move from standard guidelines to new boards of calorie expenditure thresholds in overweight women by increasing of volume and intensity of daily activities by multimodal training programs to increase calorie expenditure and reaching to following favorite results.
Effects of Fiber Length and Loading on the Qualities of Fiber Reinforced Epoxy Composites from Schumannianthus Dichotomus (Murta)
Authors: Kashyap Muneesh , K. Shillargol Dr. Ranoji
Published: August 2023

Composite isn't a new word, it's a long time around. Due to its usage in several applications, it has risen in prominence over the last four to five decades. The main aim of the study is Effects of Fiber Length and Loading on the Qualities of Fiber Reinforced Epoxy Composites from Schumannianthus Dichotomus (Murta). The polymer matrix is made of Araldite AW106 epoxy resin and HV953U hardener. Bisphenol A Diglycidyl Ether with the same epoxy weight as 214 – 221 g eq-1 is included in Araldite AW106. The HV953U hardener includes 1,3-propylenediamine N-(3-dimethaminopropyl)-. Composite materials have a very adaptable component lay out above normal materials due to their clear strength, strength, and exhaustive characteristics.
The Transformation in Philippine BPO Companies: The Impact of Digital Workplace Transformation to the Front Office CSR in terms of their Work Culture
Authors: H. Bula Roey Ryan , G. Catahan Marivie , D. Enorasa Sofia
Published: August 2023

The workforce in various industries, particularly the BPO industry, experiences significant impacts from digital workplace transformation. It is affected by employee skill levels, knowledge, efficiency, and rationalization. This research aims to investigate the impact of digital workplace transformation on work culture, represented by the following variables: employee retention, motivation, and productivity. Participants in this study work as front-office customer service representatives (CSR) for business processing outsourcing (BPO) companies in the Philippines, specifically the top BPO companies on the list issued by the IT & Business Process Association of the Philippines (IBPAP). Using a mixed method approach, the researchers incorporated qualitative and quantitative data for this study, allowing them to compile all the necessary information. Using Somer's delta, the researchers identified the association between the dependent and independent variables. After analyzing the data, researchers found that the development of the digital workplace positively impacts work culture. At the same time, the shift to a digital workplace benefits worker productivity, motivation, and retention. On the contrary, with the interview results of the study conducted with the respective team leaders of these employees, the researchers discovered that despite the magnificent benefits of digital workplace transformation, it can still cause stress and work overload. In conclusion, our research findings contradicted our initial hypothesis that the digital workplace would not significantly impact work culture in BPO companies. Instead, we discovered that digital workplace transformation impacts employee retention, motivation, and productivity. The transformation to a digital workplace progressively enhances the quality of work performed by customer service representatives in BPO companies, leading to a better work experience. Researchers recommend that BPO companies focus on skills development, effective communication, work environment enhancements, and supervisor support to ensure a successful transformation.
REVIEW OF BONE SCAFFOLD DESIGN CONCEPTS AND DESIGN METHODS
Authors: Milovanović Jelena , Stojković Miloš , Trifunović Milan , Vitković Nikola
Published: August 2023

The paper brings out a review of existing, state-of-the-art approaches to designing the geometry of the scaffolds that are used for tissue engineering with a special emphasis on the macro scaffolds aimed for bone tissue recovery. Similar concepts of different authors are organized into groups. The focus of the paper is on determining the existing concepts as well as their advantages and disadvantages. Besides the review of scaffolds' geometry solutions, the analysis of the existing designs points to some serious misconceptions regarding the scaffold role within the (bone) tissue recovery. In the last section of the paper, the main requirements regarding geometry, that is, architecture and corresponding mechanical properties and permeability are reconsidered.
SPRING BASED ON FLAT PERMANENT MAGNETS: DESIGN, ANALYSIS AND USE IN VARIABLE STIFFNESS ACTUATOR
Authors: Kozakiewicz Bartłomiej , Winiarski Tomasz
Published: August 2023

Modern robot applications benefit from including variable stiffness actuators (VSA) in the kinematic chain. In this paper, we focus on VSA utilizing a magnetic spring made of two coaxial rings divided into alternately magnetized sections. The torque generated between the rings is opposite to the angular deflection from equilibrium and its value increases as the deflection grows – within a specific range of angles that we call a stable range. Beyond the stable range, the spring exhibits negative stiffness what causes problems with prediction and control. In order to avoid it, it is convenient to operate within a narrower range of angles that we call a safe range. The magnetic springs proposed so far utilize few pairs of arc magnets, and their safe ranges are significantly smaller than the stable ones. In order to broaden the safe range, we propose a different design of the magnetic spring, which is composed of flat magnets, as well as a new arrangement of VSA (called ATTRACTOR) utilizing the proposed spring. Correctness and usability of the concept are verified in FEM analyses and experiments performed on constructed VSA, which led to formulating models of the magnetic spring. The results show that choosing flat magnets over arc ones enables shaping spring characteristics in a way that broadens the safe range. An additional benefit is lowered cost, and the main disadvantage is a reduced maximal torque that the spring is capable of transmitting. The whole VSA can be perceived as promising construction for further development, miniaturization and possible application in modern robotic mechanisms.
RESEARCH ON THE FLUID-INDUCED EXCITATION CHARACTERISTICS OF THE CENTRIFUGAL PUMP CONSIDERING THE COMPOUND WHIRL EFFECT
Authors: Zhou Wenjie , Yu Dongliang , Wang Yifan , Shi Junlin , Gan Bin
Published: August 2023

In order to study the correlation mechanism between the flow characteristics and the fluid-induced force under the compound whirl motion in the centrifugal pump, the RNG k-ε model is selected in this paper to simulate a low specific speed centrifugal pump with impeller eccentricity based on the N-S equation. The changes of fluid-induced force with impeller eccentricity and the unsteady flow characteristics of the internal flow field of centrifugal pump under different flow conditions and rotation speeds are investigated, and the relationship between the fluid-induced force of the impeller and the internal flow field characteristics is discussed. The results show that the trend of fluid-induced force and the pressure coefficient is similar. When the rotation speed changes and when the flow is similar, the pressure coefficient under different rotation speeds almost coincides. With the increase of impeller speed and impeller eccentricity, the dynamic and static interferences between the impeller and the volute tongue are more significant, the uneven distribution of the pressure around the impeller makes the internal flow of centrifugal pump more disordered and increases the fluid-induced force near the volute tongue. The research results can provide important reference value for accurately grasping the internal flow excitation principle of the centrifugal pump.
NONLINEAR VIBRATION RESPONSE OF PIEZOELECTRIC NANOSENSOR: INFLUENCES OF SURFACE/INTERFACE EFFECTS
Authors: Hashemi Kachapi Sayyid H.
Published: August 2023

In the present work, surface/interface energy effects for pull-in instability analysis on dimensionless natural frequency (DNF) and nonlinear dynamics response (NDR) of piezoelectric nanosensor (PENS) subjected to nonlinear electrostatic excitation and harmonic force are studied using Gurtin–Murdoch (GM) surface/interface energy approach. To achieve this purpose, the Hamilton’s approach, assumed mode and Lagrange–Euler’s theories and also arc-length continuation and complex averaging methods are used to investigate influences of surface/interface parameters of PENS such as Lame’s constants, residual stress, piezoelectric constants and mass density for analysis of pull-in instability voltage.
IDENTIFICATION OF CHATTER VIBRATIONS AND ACTIVE VIBRATION CONTROL BY USING THE SLIDING MODE CONTROLLER ON DRY TURNING OF TITANIUM ALLOY (TI6AL4V)
Authors: Guvenc Mehmet Ali , Bilgic Hasan Huseyin , Mistikoglu Selcuk
Published: August 2023

In recent years, with the development of sensor technologies, communication platforms, cyber-physical systems, storage technologies, internet applications and controller infrastructures, the way has been opened to produce competitive products with high quality and low cost. In turning, which is one of the important processes of machining, chatter vibrations are among the biggest problems affecting product quality, productivity and cost. There are many techniques proposed to reduce chatter vibrations for which the exact cause cannot be determined. In this study, an active vibration control based on the Sliding Mode Control (SMC) has been implemented in order to reduce and eliminate chatter vibration, which is undesirable for the turning process. In this context, three-axis acceleration data were collected from the cutting tool during the turning of Ti6Al4V. Finite Impulse Response (FIR) filtering, Fast Fourier Transform (FFT) analysis and integral process were carried out in order to use the raw acceleration data collected over the system in control. The system is modeled mathematically and an active control block diagram is created. It is observed that chattering decreased significantly after the application of active vibration control. The surface quality formed by the amplitude of the graph obtained after active control has been compared and verified with the data obtained from the actual manufacturing result.
MINIMIZATION OF DEFLECTION ERROR IN FIVE AXIS MILLING OF IMPELLER BLADES
Authors: Soori Mohsen , Asmael Mohammed
Published: August 2023

The 5-axis CNC machine tools are used for manufacturing free form surfaces of sophisticated parts such as turbine blades, airfoils, impellers, and aircraft components. The virtual machining systems can be used in order to analyze and modify the 5-axis CNC machine tools operations. Cutting forces and cutting temperatures induce deflection errors in thin-walled structures such as impeller blades through machining operations. Thin-walled impeller blades' flexibility can result in machining errors such as overcutting or undercutting. So, decreasing the deflection error during machining operations of impeller blades can achieve the desired accuracy in produced parts. Optimized machining parameters can be obtained to minimize the deflection of machined impeller blades. In terms of precision and efficiency enhancement in component production processes, a virtual machining system is developed to predict and minimize deflection errors of 5-axis milling operations of impeller blades. The deflection error in machined impeller blades is calculated by using finite element analysis. The optimization methodology based on the genetic algorithm is applied to minimize the deflection error of impeller blades in machining operations. To validate the integrated virtual machining system in the study, the impeller is milled by using a 5-axis CNC machine tool. The CMM machine is used in order to measure and analyze deflection error in the machined impeller blades. As a result, by using the developed virtual machining system in the study, accuracy and efficiency in 5-axis milling operations of impellers can be increased.
FREE VIBRATION INVESTIGATION ON RVE OF PROPOSED HONEYCOMB SANDWICH BEAM AND MATERIAL SELECTION OPTIMIZATION
Authors: Safaei Babak , Chukwueloka Onyibo Emmanuel , Goren Mehmet , Kotrasova Kamila , Yang Zhicheng , Arman Samaneh , Asmael Mohammed
Published: August 2023

In this paper, free vibration, modal and stress state analyses of honeycomb sandwich structures with different boundary conditions was investigated and major factors affecting the sandwich frequencies and stiffness due to material or parameter changes were determined. The representative volume element (RVE) method used in this work were analytically and numerically validated by comparing the obtained results to those available in literature. Firstly, unit cell method was used to capture the entire effects of different parameters on the free vibration of honeycomb sandwich structure in ANSYS. This study analyzed the natural frequencies of honeycomb sandwich structures with different core materials combination. The effects of foil thickness, boundary conditions, materials selection, density and presence of crack on sandwich structure were taken into consideration and examined. The proposed core had an inbuilt shaped reinforcement with different materials for effective resonance, fatigue and deformation resistance at much higher frequency.
ELECTRO-MECHANICAL RESPONSE OF STRETCHABLE PDMS COMPOSITES WITH A HYBRID FILLER SYSTEM
Authors: Kim Haeji , Qaiser Nadeem , Hwang Byungil
Published: August 2023

With the technological development of wearable devices, there are increasing demands for stretchable conductor that have stable electro-mechanical performance. In this study, a stretchable PDMS composite electrodes using ternary systems of fillers consisting of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) / carbon nanotube (CNT) / silver nanowire (AgNW) is explored in a perspective of electro-mechanical response. PDMS matrix is mixed with binary fillers of CNT and PEDOT:PSS, which is followed by AgNW peeling-off process. The PDMS composite is mechanically reliable especially under tensile deformation, which showed a high rupture strain of ~102 % and tensile strength of ~2.7 MPa. In addition, the PDMS composites shows the stable electro-mechanical response, where high electrical conductivity is sustained even under stretchable conditions, showing an electrical resistance value of ~11.7 Ω/cm under 40% of strain. As a demonstration, a supercapacitor using the PDMS composites is demonstrated that shows reliable electrochemical performance.
FRACTAL DIMENSIONS OF A POROUS CONCRETE AND ITS EFFECT ON THE CONCRETE’S STRENGTH
Authors: He Chun-Hui , Liu Chao
Published: August 2023

All mechanical properties of a porous medium depend upon its fractal dimensions, however, how to measure the fractal dimensions is still an open issue. This paper adopts the two-scale fractal theory to calculate fast and effectively the fractal dimensions of a porous concrete. Of the concrete's properties that have been fascinating engineers and scientists, by far the most perplexing is the effects of its porosity and pore size on concrete's strength. Though there were many ad hoc empirical formulae for predicting the strength, much deviation arose for practical applications. Here a dimensionless model and the fractal theory are adopted to insight theoretically into the effects, and for the first time ever, some physically relative and mathematically reliable formulations are proposed. Additionally nano/micro particles’ size and distribution can also be used for theoretical prediction of the concrete’s strength, it shows that the boundary-induced force occurs when the particles tend to micro/nanoscales. The present theory sheds new light on the optimal design of various functional concretes.
Evaluation of DNA Damage in Lymphocytes in Percutaneous Thoracic Mass Biopsies Performed with Computed Tomography
Authors: AYYILDIZ Veysel Atilla , ASLANKOÇ Rahime , MUSTAFA Saygın , GÜNDÜZ Demet
Published: August 2023

Purpose: The increase in the medical and industrial uses of radiation in the last century has caused people to be exposed to higher doses of radiation. Although the harms of high-dose radiation on human health are known, the effects of low-dose radiation on health have not yet been fully elucidated. In this study, we aimed to investigate DNA damage in lymphocytes in patients with lung, pleura/thoracic wall masses planned for percutaneous thoracic mass biopsy with computed tomography (CT). Methods: Sixteen patients referred to the Radiology Clinic of a public institution hospital with lung, pleura/thoracic wall masses and scheduled to undergo a CT-guided percutaneous biopsy were included in the study. All the biopsies were performed with a 128-slice CT device (Definition AS, Siemens Medical Solutions, Forchheim, Germany). Lymphocytes were analyzed using the comet assay in the venous blood samples taken from the patients before and after the biopsy procedure. DNA damage was quantitatively evaluated with the imaging analysis method. Results: In the CT analysis data of the study group, the mean scan distance was found to be 19.92±3.60 sec, the mean total milliampere-seconds was 807.43±304.51, and the mean dose-length product was 765.44±278.36 mGy.cm. The mean comet score was 200.50±40.54 for the cells that migrated before the procedure and 237.37±27.85 for those migrating after the procedure. The post-procedure comet scores significantly increased compared to the pre-procedure comet scores (p=0.038). Conclusion: Post-procedure DNA damage was detected in patients who underwent CT-guided percutaneous biopsy.
Yoğun Bakımda Çalışan Hemşirelerin Yaşlı Ayrımcılığı ile İlgili Görüşlerinin İncelenmesi
Authors: ERSOY Sıddıka , PALANTÖKEN-ENGİN Sultan
Published: August 2023

Amaç: Bu çalışma, yaşlı bakımında etkin rol oynayan sağlık bakım profesyonelleri olan yoğun bakım hemşirelerinin yaşlı ayrımcılığına ilişkin tutumlarının incelenmesi amacıyla yapılmıştır.
Materyal-Metot: Yoğun bakım üniteleri hemşirelerin ve yaşlı bireylerin bir arada olduğu önemli alanlardan biridir. Araştırmanın evrenini Başakşehir Çam ve Sakura Şehir Hastanesi Yoğun Bakım Ünitelerinde çalışan hemşireler (N=149); örneklem grubunu ise çalışmaya katılmayı kabul eden ve katılma şartlarını karşılayan 136 hemşire oluşturmuştur. Araştırmanın verileri, araştırmacılar tarafından hazırlanan sosyodemografik veri formu ve Pozitif ve Negatif Yaşlı Ayrımcılığı Ölçeği (PNYAÖ) kullanılarak toplandı.
Bulgular: Yoğun bakım üniteleri hemşirelerin ve yaşlı bireylerin bir arada olduğu önemli alanlardan biridir. Araştırmanın evrenini Başakşehir Çam ve Sakura Şehir Hastanesi Yoğun Bakım Ünitelerinde çalışan hemşireler (N=149); örneklem grubunu ise çalışmaya katılmayı kabul eden ve katılma şartlarını karşılayan 136 hemşire oluşturmuştur. Araştırmanın verileri, araştırmacılar tarafından hazırlanan sosyodemografik veri formu ve Pozitif ve Negatif Yaşlı Ayrımcılığı Ölçeği (PNYAÖ) kullanılarak toplandı. Katılımcı hemşirelerin PYA tutum puanı 42,76±5,32 iken NYA tutum puanı 24,18±6,47 olarak bulunmuştur. Bu veriye dayanarak; çalışmadaki katılımcı profesyonel sağlık ekibinin üyesi olan hemşirelerin yaşı ilerlemiş bireylere yönelik tutumlarının olumlu olduğu ifade edilebilir.
Sonuç: Yaşlılara yönelik olumlu tutumların geliştirilmesine yönelik bireysel ve kurumsal stratejilerin planlanıp uygulamaya aktif olarak dahil edilmesi önerilebilir.
Programa Residência Pedagógica: contribuições para a formação inicial de professores de matemática
Authors: Costa Adriele Oliveira
Published: August 2023

Este trabalho tem como objetivo analisar a contribuição do Programa de Residência Pedagógica (PRP) para a formação inicial do professor de Matemática, em particular uma experiência vivenciada pela autora e, desse modo, compreender como se caracteriza a relação entre a instituição e escola. Esta pesquisa teve como procedimento metodológico duas fontes principais, sendo a pesquisa bibliográfica, com amparo na literatura existente sobre o PRP. E a outra parte da pesquisa, aconteceu por meio da observação participativa. Concluímos que, o PRP permite ao estagiário desenvolver a prática docente em um ambiente supervisionado, promovendo a apropriação de conteúdos teóricos, metodológicos e práticos, que estão intimamente relacionados com a construção do conhecimento sobre o ensino da matemática. Além disso, as atividades desenvolvidas no PRP promovem a reflexão do estagiário sobre sua prática de ensino, favorecendo o uso de múltiplos recursos de aprendizagem e a construção de um aprendizado significativo.
Low-Cost Resource Scheduling Framework using Collaborative Edge Fog Environment for Smart Health
Authors: Singh Kiran Deep , Singh Prabh Deep
Published: August 2023

The exponential growth in data processing and resource requirements
directly results from the widespread use of smart health applications.
Fog computing emerges as a viable paradigm, bringing cloud capabilities
to the network’s edge to meet the high computational needs. In this
research, we present a low-cost resource scheduling technique for smart
health systems that use collaborative edge fog computing to enhance
efficiency and maximize the allocation of available resources. The
proposed framework uses the network’s edge nodes to distribute computing
and storage tasks, which decreases latency, increases scalability, and
lowers infrastructure costs. Our resource allocation system dynamically
assigns tasks to fog devices and servers based on job priorities, device
capabilities, and resource consumption levels. This optimization
guarantees consistent workload distribution, resilience in the face of
errors, and swift, accurate processing of smart health data. The
experimental evaluation verifies the framework’s efficiency in
minimizing response times and optimizing resource utilization, a major
step forward in smart health. Our Low-Cost Resource Scheduling Framework
for Smart Health in a Collaborative Edge Fog Environment enables
healthcare providers to provide timely and affordable care. The
framework uses edge devices and fog servers to process health-related
data closer to data sources and end-users to improve system performance
and reduce transmission latency. The framework improves service quality
and reduces expenses by decreasing the need for cloud hosting. Edge fog
computing’s near-real-time data processing benefits users and patients,
strengthening the framework’s smart health application.
Respiratory sequelae after COVID-19 infection in Thai healthy children
Authors: Niamsanit Sirapoom , Boonjindasup Wicharn , Sritippayawan Suchada , Deerojanawong Jitladda , Prapphal Nuanchan , Harnruthakorn Chanthana , Sophonphan Jiratchaya , Niyomkarn Watit
Published: August 2023

Background and Aims: The long-term respiratory sequelae of
COVID-19 infection in children remain poorly understood and may differ
across countries. This study aims to investigate the respiratory
sequelae, including residual respiratory symptoms and pulmonary function
in Thai children. The secondary aim is to identify factors associated
with the respiratory sequelae. Materials and Methods: This is
an observational study involving 56 healthy children, aged between 7-18
years, who were diagnosed with COVID-19 infection from July 2021 to
February 2023. Clinical data relating to COVID-19 infection and
persistent symptoms after the infection were assessed after the
infection up to six months. Spirometry was performed to assess pulmonary
function. Results: Post COVID-19 symptoms were identified in 14
patients (25%), with fatigue, cough, and dyspnea being common symptoms
(28-35%). A significant correlation was found between post COVID-19
symptoms and pneumonia (OR = 6.00, 95%CI [1.54,23.33], p=0.01).
Abnormal pulmonary function was identified in 10 patients (17.8%) with
obstructive impairment being the most common. However, there were no
significant association between clinical factors and pulmonary function
impairment. Conclusion: Prolonged respiratory symptoms and
abnormal pulmonary function following COVID-19 infection are not
uncommon in children. The post COVID-19 symptoms are possibly associated
with COVID-19 pneumonia.
A Case Study of On-line Academic Achievement Prediction Model by Analyzing LMS Log Data
Authors:   Research Institute of Science Education, Seo Jin Sun , Lee Jae Kyung
Published: August 2023

The purpose of the present study was to analyze the online learning activities of students through the data log of LMS through a learning analytical approach and to find out which variables predict academic achievement. After transforming the data left by the learner into a form that can be properly analyzed, the behavior data was set as an independent variable, and the learner’s academic achievement was used as a dependent variable to develop a model for predicting academic achievement. The study subjects were conducted for 55 students who took a course in Educational Technology, a department of education at S Women’s University in Seoul, independent variable data was collected through LMS’s learner log analysis, and the dependent variable, academic achievement, is the final exam score. The research results are as follows. First, a technical statistical analysis was conducted to examine the trend of online activity data of college students. Based on result, the type, frequency, and average of learners’ learning activities and learning behaviors were found. Second, as a result of analysis related to the development of the academic performance prediction model, the number of course accesses, the number of clicks on learning materials, and the reading of posts significantly predicted academic achievement. Third, as a result of verifying the effect of online behavior in the LMS environment on academic achievement through a multiple regression analysis, the model showed 13.0% of the academic achievement. It was within the scope of predictive explanatory power. Based on these results, several suggestions for the follow-up studies were added at the end.
On approximately biprojective and approximately biflat Banach algebras
Authors: Sahami Amir , Bodaghi Abasalt
Published: August 2023

In this paper, we study the approximate biprojectivity and the approximate
biflatness of a Banach algebra A and find some relations between theses
concepts with ?-amenability and ? -contractibility, where ? is a character on
A. Among other things, we show that ?-Lau product algebra L1(G) ?? A(G) is
approximately biprojective if and only if G is finite, where L1(G) and A(G)
are the group algebra and the Fourier algebra of a locally compact group G,
respectively. We also characterize approximately biprojective and
approximately biflat semigroup algebras associated with the inverse
semigroups.
Two-parameter conformable fractional semigroups and abstract Cauchy problems
Authors: Ameziane Hassani Rachid , Blali Aziz , El Amrani Abdelkhalek , El Beldi
Published: August 2023

The goal of this work is to introduce the two-parameter conformable
fractional semigroups and provide a definition of its infinitesimal
generator. For such generators, we develop multiple results. In addition, we
show that the two-parameter conformable fractional semigroups provide a
solution for two-parameter conformable fractional abstract Cauchy problems.
Finite-dimensional exact controllability of an abstract semilinear fractional composite relaxation equation
Authors: Liang Yixing , Fan Zhenbin , Li Gang
Published: August 2023

In Hilbert space, the finite-dimensional exact controllability of an
abstract semilinear fractional composite relaxation equation is researched.
We make assumptions about the parameters in the equation and suppose that
the linear equation associated with the abstract semilinear fractional
relaxation equation is approximately controllable. We apply the variational
method, the resolvent theory and the fixed point trick to demonstrate the
finite-dimensional exact controllability of the abstract semilinear
equation. An application is given in the last paper to testify our results.
Drazin geometric quasi-mean for Lambert conditional operators
Authors: Sohrabi Morteza
Published: August 2023

In this paper we introduce the Drazin geometric quasi-mean AdO?B = ||BAd|?A|2
for bounded conditional operator A and B in L2(?), where A has closed range
and ? ? 0. In addition, we discuss some measure theoretic characterizations
for conditional operators in some operator classes. Moreover, some practical
examples are provided to illustrate the obtained results.
The quasi-Rothberger property of Pixley-Roy hyperspaces
Authors: Li Zuquan
Published: August 2023

Let PR(X) denote the hyperspace of non-empty finite subsets of a topological
space X with Pixley-Roy topology. In this paper, we investigate the
quasi-Rothberger property in hyperspace PR(X). We prove that for a space X,
the followings are equivalent: (1) PR(X) is quasi-Rothberger; (2) X
satisfies S1(?rc f?h,?wrc f?h); (3) X is separable and each co-finite subset
of X satisfies S1(?pc f?h,?wpc f?h); (4) X is separable and PR(Y) is
quasi-Rothberger for each co-finite subset Y of X. We also characterize the
quasi-Menger property and the quasi-Hurewicz property of PR(X). These answer
the questions posted in [8].
Pan-Nox inhibitor treatment improves renal function in aging murine diabetic kidneys
Authors: Park Jeong Hoon , Yoon Sung Gi , Ghee Jung Yeon , Yoo Ji Ae , Cha Jin Joo , Kang Young Sun , Han Sang Youb , Seol Yun Jae , Han Jee Young , Cha Dae Ryong
Published: August 2023

Background: Aging is a risk factor for development of chronic kidney disease and diabetes mellitus with commonly shared features of chronic inflammation and increased oxidative stress. Here, we investigated the effect of pan-Nox-inhibitor, APX-115, on renal function in aging diabetic mice. Methods: Diabetes was induced by intraperitoneal injection of streptozotocin at 50 mg/kg/day for 5 days in 52-week-old C57BL/6J mice. APX-115 was administered by oral gavage at a dose of 60 mg/kg/day for 12 weeks in nondiabetic and diabetic aging mice. Results: APX-115 significantly improved insulin resistance in diabetic aging mice. Urinary level of 8-isoprostane was significantly increased in diabetic aging mice than nondiabetic aging mice, and APX-115 treatment reduced 8-isoprostane level. Urinary albumin and nephrin excretion were significantly higher in diabetic aging mice than nondiabetic aging mice. Although APX-115 did not significantly decrease albuminuria, APX-115 markedly improved mesangial expansion, macrophage infiltration, and expression of fibrosis molecules such as transforming growth factor beta 1 and plasminogen activator inhibitor 1. Interestingly, the expression of all Nox isoforms including Nox1, Nox2, and Nox4 was significantly increased in diabetic aging kidneys, and APX-115 treatment decreased Nox1, Nox2, and Nox4 protein expression in the kidney. Furthermore, Klotho expression was significantly decreased in diabetic aging kidneys, and APX-115 restored Klotho level. Conclusion: Our results provide evidence that pan-Nox inhibition may improve systemic insulin resistance and decrease oxidative stress, inflammation, and fibrosis in aging diabetic status and may have potential protective effects on aging diabetic kidney.
Rancang Bangun Alat Penyekir Katup Otomatis Berbasis Microcontroller
Authors: Oksarianti Yuvani , Mulyono Dedi , Saputra Riko , Saputra Doni , Arif Ahmad
Published: August 2023

Leakage of the valve in the cylinder head of the combustion engine was caused by a pile of crust attached to the valve seat, so that it interferes with the compression process and reduces engine performance. Valve Grinding Automatic System Based Microcontroller is an innovation designed for valve cleaning, works by converting electrical energy into rotational motion. Using research and development methods, this tool was developed to overcome the mechanical difficulties of adjusting manual cleaning movements by hand. The variables in this study were the dynamo rotational speed and the time required for cleaning. Based on the research, Valve Grinding Automatic System Based Microcontroller provides three choices of rotational speed of 1500 rpm, 2000 rpm and 2500 rpm with each speed requiring a cleaning time of 3 minutes, 2 minutes, and 1 minute. From the results of testing using diesel fuel, it is known that the results of cleaning the valve do not leak and have met the standard.

Kebocoran katup pada cylinder head motor bakar disebabkan oleh tumpukan kerak yang melekat pada seating katup sehingga mengganggu proses kompresi dan menurunkan kinerja mesin. Alat Penyekir Katup Otomatis Berbasis Microcontroller merupakan inovasi yang dirancang untuk penyekiran katup yang bekerja dengan cara mengubah energi listrik menjadi gerak rotasi. Dengan metode research and development, alat ini dikembangkan untuk mengatasi kesulitan mekanik dalam mengatur gerakan penyekiran manual dengan tangan. Variabel dalam penelitian ini adalah kecepatan putaran dinamo dan waktu yang dibutuhkan untuk penyekiran. Berdasarkan penelitian yang dilakukan, Alat Penyekir Katup Otomatis Berbasis Microcontroller menyediakan tiga pilihan kecepatan putaran yakni 1500 rpm, 2000 rpm dan 2500 rpm dengan masing-masing kecepatan memerlukan waktu penyekiran 3 menit, 2 menit, dan 1 menit. Dari hasil pengujian dengan menggunakan solar, diketahui bahwa hasil penyekiran katup tidak mengalami kebocoran dan telah memenuhi standar.
Hubungan Motivasi Belajar Siswa XI TKRO Terhadap Hasil Belajar Pada Mata Pelajaran PKKR DI SMKN 1 Bukittinggi
Authors: Sabah Ali Jaber Al , Alwi Erzeddin , S Wakhinuddin , Dani Saputra Hendra
Published: August 2023

Tujuan studi ini adalah untuk mengetahui bagaimana hubungan antara motivasi belajar dan hasil belajar siswa TKKR pada mata pelajaran PKKR di SMKN 1 Bukittinggi. Penelitian deskriptif kuantitatif merupakan jenis penelitian yang dimaksud. Uji coba instrumen tersebut diikuti oleh 31 siswa TKRO kelas XI, validitas ditemukan peryataan tidak valid sebanyak 5 item nomor 3, 6, 25, 48, dan 54. Dan reliabilitas menggunakan rumus alpha cronbach dan klasifikasi sangat tinggi dengan indeks reliabilitas 0,964. Hasilnya, dilakukan uji instrumen penelitian menggunakan data yang valid sebanyak 70 item pernyataan. Pengujian hipotesis korelasi menghasilkan r hitung 0,585 > r tabel 0,355, dan uji-t menghasilkan thitung 7,105 > ttabel 1,696, yang menunjukkan korelasi positif antara motivasi belajar dan hasil belajar siswa.
The purpose of this study is to ascertain how XI TKRO students' learning motivation and learning outcomes in PKKR subjects at SMKN 1 Bukittinggi are related..This type of research is quantitative descriptive research. Instrument testing was carried out on 31 students of class XI TKRO. The validity of the invalid statement was found by 5 items number 3, 6, 25, 48, and 54. And the reliability used Cronbbach's alpha formula with a reliability index of 0.964 in a very high classification. Then test the research instrument using valid data as many as 70 statement items. Based on testing the correlation hypothesis obtained r count 0.585 > r table 0.355 while the t-test results t count 7.105 > t table 1.696 this shows that there is a positive connection between learning inspiration and understudy learning results.
The Musical Style of Sándor Veress’s Four Transylvanian Dances. The Synthesis of ‘Tradition’ and ‘Renewal’
Authors:   Department of Music, Faculty of Reformed Theology and Music, Babeș-Bolyai University, Cluj-Napoca, Romania. Email: fktmiklos@gmail.com., Fekete Miklós
Published: August 2023

"The paper examines the style of Sándor Veress in his first compositional period through the dance suite Four Transylvanian Dances, written for string orchestra. Throughout the musical analysis, the paper points out a few compositional principles and techniques, with which the heritage of classical and folk music can be successfully translated into an innovative and progressive contemporary musical language. Keywords: Sándor Veress, style, compositional techniques, analysis, Four Transylvanian Dances."
The Exoticism of Olivier Messiaen
Authors:   Faculty of Music, Transilvania University, Brașov, Romania. Email: m_rucsanda@unitbv.ro., Rucsanda Mădălina Dana , Karácsony Noémi ,   Faculty of Music, Transilvania University, Brașov, Romania. Email: noemi.karacsony@unitbv.ro.
Published: August 2023

"In the final decades of the 19th century and in the 20th century, exoticism and orientalism contributed greatly to the evolution and innovation of Western music composition. Using the rules and techniques of Western music, composers incorporated in their works elements pertaining to or inspired by foreign cultures and their music. The current study continues the investigations brought to attention by the authors in their previous articles: it desires to reveal and analyze the way exoticism and orientalism influenced the creation of various composers, pointing to those aspects that represented innovation brought about by the contact with the music and culture of other cultures than the Western world. The musical language of Messiaen is deeply rooted in the universal musical heritage, comprising elements belonging to the music of the Ancient Greeks, the Orient, Africa, or Europe. The present paper presents and offers examples regarding the way rhythm and melody are organized and employed by Messiaen using means that are inspired by Hindu music: the correspondence between the deçî-tâlas (Hindu rhythms) and Messiaen’s use of rhythm, as well as the similarities between the Hindu rāga and the modes of limited transposition. Apart from the Hindu influences on rhythm and melody, Messiaen was also inspired by the Japanese Gagaku, its instruments, and relation between harmony and melody, as well as Indonesian music (Balinese and Javanese), both having an important influence on the way the composer perceives and creates timbre. But apart from striving to create new means of musical expression using exotic elements, Messiaen desired to unveil certain spiritual and theological truths, mirrored in his music and the construction of his musical discourse. Keywords: exoticism, Hindu, Japanese, Bali, Messiaen"
Hide-and-Seek Between the Serial and the Modal in Anatol Vieru’s Concerti
Authors:   Faculty of Music, National University of Music, Bucharest, Romania. Email: olguta.lupu@unmb.ro., Lupu Olguța
Published: August 2023

"After first employing the 12-tone serialism, Anatol Vieru turned to folklore for inspiration and then wrote works based on artificial modes. I was interested in the possible correlations between these periods of his oeuvre. More precisely, I wished to analyze Vieru’s concerti as to their use of 12-tone structures and the relations they establish with non-serial configurations. I noticed that, even if he uses the chromatic total and respects the rules of serialism only in a first stage, Vieru very much kept in contact with it, albeit by converting it from a point of departure to a destination, the direction of a route seeming to often coincide with the obtaining of the chromatic total or with an asymptotic aspiration towards it. An interesting intersection is thus created, where the modal takes over the serial while the latter will still discreetly remain woven into the former. Keywords: Anatol Vieru, Serialism, Serial, Modes, Concerti "
Modifying Processuality of Emotions of a Musician-Performer
Authors:   Department of Bayan and Accordion, Ukrainian National Tchaikovsky Academy of Music, Kyiv, Ukraine. Email: zaetsa@ukr.net., Zaiets Vіtalіi , Zaiets Oksana ,   The Municipal Institution of Higher Education, Kyiv Regional Council, P. Chubynsky Academy of Arts, Kyiv, Ukraine. Email: oksanazaets@ukr.net.
Published: August 2023

"The essence of this research is to understand the professional and creative specifics of the emotional thinking of a musician-performer. The idea arose from the experience of performing activities, teaching and scientific research in the context of the traditions of performing arts and the theoretical opinion of experts in the field of musicology. The main task consists in substantiating the methodological and theoretical principles, methods of approach to determining the functional features of the emotional tone of a musician-performer as a tool for the formation of professional thinking of a creative personality. In such formulation of the question, it is necessary to proceed from the fact that the problem of human thinking is generally constantly active, meaning that it is in a procedural state as both, an individual person and his/her natural environment, assimilate and generate new emotions (feelings), and, therefore, directly carry out influence on the flow of mental processes. The processuality of this dual dynamic psychological modification is endless, and the disclosure of regularities here also has a timely processual and continuously renewed character. Keywords: feelings, emotions, performance tone, intuition, thinking of a musician-performer."
Analytical Aspects in Missa de Beata Virgine by Josquin des Prez
Authors:   Faculty of Reformed Theology and Music, Babeș-Bolyai University, ", Fábián Apolka ,   Gheorghe Dima",   National Academy of Music, Cluj-Napoca, Romania. Email: apolkafabian@gmail.com.
Published: August 2023

"Josquin des Prez has composed at least 20 masses. This article focuses on the presentation and analysis of compositional techniques in Missa de Beata Virgine used by Josquin des Prez. He used different techniques from the XVI. century: paraphrased cantus firmus melody, tropus, imitative and polyphonic techniques. His early style testifies to the influence of Guillaume Dufay and Jan van Ockeghem. Following his Italian experience he mastered the homophonic compositional technique, which strengthened the text-music relationship in his works. Keyword: Renaissance music, Josquin des Prez, mass, church music, cantus firmus "
Steve Reich’s Style and Componistic Concepts Reflected in Tehillim Score
Authors:   Faculty of Music, ", Belibou Alexandra ,   Transilvania",   University, Brașov, Romania. Email: alexandra_belibou@unitbv.ro.
Published: August 2023

"The present article traces the way compositional conceptions and writing style are highlighted in the creation of Tehillim belonging to one of the most prolific contemporary composers – Steve Reich. The research starts from the composer’s ideas about what the compositional journey means, continues with a musical analysis that emphasizes the ways of development of the musical data, and ends with the observation of how the principles of composing are objectified in realities and musical choices. I chose this score because it differs from the previous ones with original elements, with musical parameters that Reich did not use in his career, so it is very interesting to find the composer’s specific compositional archetypes in this specific work. Keywords: componistic concepts, style, Steve Reich, vocal music, 21st century music, Tehillim. "