bluuebunny/crossref_metadata_2025 huggingface dataset:
Meta-Analisis: Pengaruh Terapi Murotal terhadap Penurunan Tekanan Darah pada Penderita Hipertensi
Authors: Rejo Rejo , Yuniarti Tri , Daryanto Daryanto , Nurhayati Isnani , Widiyanto Aris , Atmojo Joko Tri , Mubarok Ahmad Syauqi
Published: May 2024

Hipertensi adalah penyakit seumur hidup, dan pasien hipertensi harus terus memantau tekanan darahnya. Terapi murotal terhadap pembacaan Al-quran diwujudkan dengan perubahan arus listrik pada otot, perubahan sirkulasi darah, perubahan detak jantung, dan perubahan konsentrasi darah di kulit. Tujuan dari penelitian ini adalah untuk mengestimasi dan menganalisis seberapa efektif terapi murotal terhadap penurunan tekanan darah pada penderita hipertensi. Penelitian ini merupakan penelitian sys¬te¬ma¬tic review dan meta-analysis denagn menggunakan diagram PRISMA. Pencarian artikel dilakukan berdasarkan kriteria kela¬yakan Model PICO. P= Penderita hipertensi; I= Terapi murotal; C= Tidak terapi murotal; O= Tekanan darah. Artikel yang digunakan berasal dari database, yaitu: Google Scholar. Dengan kata kunci antara lain "Tekanan darah" AND " Hipertensi" AND “Terapi murotal” AND “randomized controlled trial”. Menggunakan artikel dari tahun 2015-2022. Artikel dianalisis menggunakan digram PRISMA dan aplikasi Review Manager 5.3. Proses pencarian awal, yang menghasilkan 101 artikel. Setelah proses penghapusan artikel, 41 artikel terpublikasi, dengan 20 di antaranya memenuhi syarat untuk revisi full text sebanyak 5 artikel dengan de¬sain studi randomized controlled trial yang akan digu¬nakan sebagai sumber meta-analisis pengaruh terapi murotal terhadap penurunan tekanan darah pada penderita hipertensi. menunjukkan bahwa terapi murotal menurunkan tekanan darah sistolik pada penderita hipertensi. Terapi murotal menurunkan tekanan darah sistolik sebesar -13.35 kali dibandingkan dengan penderita hipertensi yang tidak terapi murotal (SMD= -13.35; CI 95%= -20.96 hingga -5.74; p=0.006), dan hasilnya signifikan secara statistik. Selain itu, plot hutan menunjukkan peningkatan heterogenitas estimasi efek antar studi (I2 = 88%; p = 0.006). Funnel plot menunjukkan bahwa bias publikasi sering melebihkan efek yang sebenarnya.
Modeling the Normal Contact Characteristics between Components Joined in Multi-Bolted Systems
Authors: Grzejda Rafał
Published: May 2024

This article is concerned with the modeling and calculation of the contact layer between components joined in a multi-bolted system for assembly conditions. The physical model of the multi-bolted connection is based on a system consisting of an elastic flange component, which is joined to an elastic support using a rigid-body bolt model. The contact layer between the joined components is described by a non-linear Winkler model. A model of the contact joint with consideration of the experimental normal elastic characteristics is presented. Examples of normal contact pressure distributions are included.
Study of a Diseased Volterra Type Population Model featuring Prey Refuge and Fear Influence
Authors: Sundari N. Mohana Sorubha , Geetha S. P.
Published: May 2024

In order to study the local stability characteristics of a predator-prey dynamical model, this work proposes a Volterra-type model that takes into account the fear influence of prey resulting from predator domination. Because of an outbreak of disease in the prey species, the prey gets classified as either healthy or diseased. Both predator and prey species compete for their resources. In addition, the prey sought refuge against the predator. All these factors are addressed when setting up the mathematical model. The biological validity of the model is ensured by testing its boundedness. The equilibrium points have been identified. The short-term behavior of the system is analyzed at all equilibrium points. Routh Hurwitz conditions are employed to examine the local stability property.
Education For Women in The Global Era of Islamic Perspectives
Authors: Junaidi Mahbub , Mahmutarom Mahmutarom , Ekaningrum Ifada Retno , Suryani Khotimah
Published: May 2024

Some civilizations consider women second-class human beings compared to men; others view women and men as equal and equal. The first creates a negative stigma for women who are socially active, resulting in restrictions on access to education. The second view gives rise to an excessive attitude that women must be the same as men. This research aims to explore, study, and discuss Islamic views on the position of women. The Islamic view in question was based on the texts of the Al-Qur’an and hadith, in which classical and contemporary Muslim intellectuals gave adequate explanations or interpretations. This study was a type of library research where the researcher used a descriptive-analytical method by adopting Maudlu’i interpretation in the study of the Al-Qur’an and hadith with a hermeneutical approach. The researcher's procedure was to start the study with a historical study of women’s education in various world cultures and civilizations, continue with women’s Islamic perspective, and continue with studies on the position of women in Islam and women’s education from an Islamic perspective. An in-depth analysis of women's education's global relevance and implications was conducted. This research concluded that Islam views women as having the same dignity and worth as men. Many verses of the Al-Qur’an and hadiths of the Prophet Muhammad SAW explain the position of women and that there was no discrimination in them, as well as in matters of education. No verses in the Al-Qur’an or Hadith of the Prophet Muhammad SAW specifically specified education for men only and excluded women.
Challenges of Implementing Character Education Based on Islamic Values in the Independent Campus Learning Curriculum (MBKM)
Authors: Iqbal Muhammad , Najmuddin Najmuddin , Rizal Muhammad , Zahriyanti Zahriyanti
Published: May 2024

Character education based on Islamic values ​​in the higher education curriculum is increasingly becoming an interesting topic of debate in contemporary education. This article aims to determine the challenges and opportunities faced in implementing character education based on Islamic values ​​in higher education, using qualitative methods through literature studies and searches. This research explores the concept of Islamic-based character education, analyzes the challenges faced in its implementation, and identifies opportunities to strengthen this approach in higher education curricula. The results of the analysis show that although there are various challenges, such as integrating Islamic values ​​into the secular curriculum, public perception of Islamic education, and limited resources, there are also significant opportunities, such as increasing awareness of the importance of character-based on Islamic values. education, support from Islamic educational institutions, and the important role of universities in shaping students' personalities and morals. These findings imply the need for a holistic and integrated approach to overcoming challenges and seizing opportunities to strengthen character education based on Islamic values ​​in higher education environments.
Types Complexity of Idioms Meaning in Arabic Language Learning Materials
Authors: Ahmadi Ahmadi
Published: May 2024

One must choose a meaningful word or sentence to reveal the intended meaning and purpose. The wrong choice of words in an idiom can be fatal. Therefore, studying and understanding several types of meanings of an idiom in the language is necessary. This study aims to provide a theoretical map of the types of expressions with different meanings in Arabic. This study uses a library research method that examines sources of information related to the idiom model in Arabic. The results of this study indicate that in Bahasa Indonesia, there are approximately twelve types of utterance meanings. The twelve types of meaning will help the language speakers determine the right choice of words to express the desired meaning. Meanwhile, in Arabic, there are approximately twelve types, including Lexical Meaning, Grammatical Meaning, Contextual Meaning, Referential Meaning, Denotative Meaning, Connotative Meaning, Conceptual Meaning, Associative Meaning, Word Meaning, Term Meaning, Idiom Meaning, and finally the meaning of proverbs.
E-Learning as A Learning Media Innovation Islamic Education
Authors: Hoerudin Cecep Wahyu , Syafruddin Syafruddin , Mayasari Annisa , Arifudin Opan , Lestari Sisca
Published: May 2024

The use of technology in the digital era is an alternative way to maximize learning for students, especially distance learning. E-learning is a new model of learning in the digital era. This research aims to determine the extent of implementing e-learning based learning in Islamic religious education lessons in SKI learning at MAN Purwakarta. This type of research is a type of qualitative research with descriptive methods. The results of this research show that there are three functions of E-Learning as a learning medium: Additional Function, Complementary Function, and Substitute Function. Then, in the Islamic religious education learning process, the use of e-learning has three stages, namely the planning, implementation, and evaluation stages. The existence of E-learning makes it easier and faster to convey Islamic religious lessons even though there are still shortcomings. Human efforts to adapt to a learning system that continues to change is a concrete step in building an adaptive generation in every era.
Development of a Learning Tool using the Cooperative Integrated Reading and Composition (CIRC) Model Based on Thunkable
Authors: Mailani Elvi , Tarigan Daitin , Sitanggang Andri Kristanto
Published: May 2024

This study aims to develop a Thunkable-based cooperative, integrated reading and composition (CIRC) model for mathematics instructional development in Unimed's PGSD program. Classroom observations revealed that current teaching practices inadequately engage students in fostering reading interest and substantive discussions for mathematical understanding. The study seeks to enhance pedagogical practices by integrating reading diversification through a Thunkable-based instructional framework. The research's overarching objective is to craft a CIRC-guided learning apparatus, utilizing Thunkable for the mathematics instructional development course in Unimed's PGSD program. Following Sugiyono's four-D model, the study employs a Research and Development approach encompassing the Define, Design, Develop, and Disseminate stages. Anticipated outcomes include obligatory deliverables like a comprehensive report, indexed proceedings publication, research proposal copyright, and publication in an accredited national journal. Supplementary outputs comprise an ISBN-endowed book, potential copyright or patent, and international journal publication. This research advances mathematics pedagogy within Unimed's PGSD program by integrating cooperative learning and technology-enhanced reading practices via Thunkable. Such an approach aligns with the progressive paradigm of educational development, fostering a conducive environment for comprehensive learning experiences and meaningful academic discourse.
Strengthening the Disciplinary Character Education of Santri through Discipline Development in Islamic Boarding Schools
Authors: Anirah Andi , Naima Naima , Retoliah Retoliah , Nursyam Nursyam , Erniati Erniati
Published: May 2024

Strengthening disciplinary character education through disciplinary development is an inseparable part of Islamic boarding schools. As traditional Islamic educational institutions, Islamic boarding schools have broader goals than simply transmitting religious knowledge. One of the main goals of Islamic boarding schools is to form an Islamic character in students. Discipline is a means of creating attitudes and behaviors that are contrary to the teachings of the Islamic religion, including obedience, patience, and responsibility. This research aims to find and explain discipline development activities in strengthening character education in Islamic boarding schools. The research method used was descriptive qualitative with a field focus at the Al-Istiqamah Ngatabaru Modern Islamic Boarding School, Central Sulawesi. Data collection methods are carried out through interviews, observation, and documentation. The data analysis method uses data reduction techniques, presentation, verification, and conclusions. The research found that strengthening disciplinary character education and developing disciplinary character were two important activities at the Al-Istiqamah Ngatabaru Modern Islamic Boarding School, South Sulawesi. Through these two activities, the disciplined character of students can be realized to support various religious activities in Islamic boarding schools. From this disciplined character in participating in religious activities, students become individuals who master a lot of religious knowledge and always behave well in everyday life.
Development of a Traditional Game Module to Improve Children's Self-Control Character Skills
Authors: Liswantiani Ester , Wibowo Setiawan Edi , Nugrahanta Gregorius Ari
Published: May 2024

This research intends to guide teachers in developing self-control in children aged 9-12 through traditional games. The research method used was Research and Development (R&D) with the ADDIE framework (Analyze, Design, Develop, Implement, and Evaluate) involving six teachers, seven module validators, and six children. The research findings are as follows: The module received a "very good" rating with a score of 3.40 from one lecturer and five teachers. The surface and content validity tests received a "very good" rating of 3.50 and 3.55, respectively. 3) The application of the module has a positive effect on the self-control of children aged 9-12 years, with a high level of effectiveness of 88.70%. The research results showed that after using the module, the average posttest score (M = 0.9217) was higher than the pretest score (M = 0.6650). This difference is significant, with a value of tt(5) = 4.122, p = 0.009 (p <0.05). This module also has quite a big influence, with an effect size (r) of 0.88 or the equivalent of around 77.26%. In other words, the module has a fairly large role, contributing 77.26% to increasing self-control. The effectiveness of implementing the module is further proven by the N-gain score of 88.7073%, which shows a high level of effectiveness. Thus, this research provides a strong empirical basis for developing better educational programs, especially in improving self-control in children aged 9-12 through a traditional game approach.
Internal Quality Management Model in Islamic Boarding School-Based Madrasah
Authors: Frandani Muhammad , Tamam Abas Mansur , Ahmad Ahmad
Published: May 2024

This research aims to (1) analyze the need for an internal quality management model and (2) design an internal quality management model in Islamic boarding school-based madrasas. This research uses the Research and Development (R&D) method using ADDIE (Analysis, Design, Develop, Implement, Evaluate) procedures and steps. The research results show that the Pesantren-Based Madrasah Quality Assurance Team must receive full support from the Islamic boarding school leadership. The Ministry of Religion's version of the Madrasah Self-Evaluation Instrument (EDM) must be developed to accommodate educational evaluations in Islamic boarding schools. Islamic boarding school-based madrasa's internal quality management model consists of four stages. First, the planning stage which consists of (1) mission alignment, (2) SWOT analysis, (3) EDM gap analysis, and (4) preparation of a quality plan. Second, the quality fulfillment stage consists of (1) determining the person responsible for the program, (2) funding allocation, and (3) reporting on quality implementation. Third, the quality evaluation stage consists of (1) formative evaluation, (2) summative evaluation, (3) preparation of evaluation instruments, (4) data collection, and (5) analysis and preparation of recommendations. Fourth is the quality follow-up stage, which consists of (1) follow-up improvement and (2) follow-up standardization of changes.
The Effect of Capital Market on Industrial Development of Nigeria
Authors: Irejeh Enaikpobomene Mina , Markwe Henry Somayina , Okoro Longlife Owei
Published: May 2024

The study examined the effect of capital market on industrial development in Nigeria for the period of 33 years spanning from 1990-2022. The independent variable employed in study are; market capitalization (MCAP), Industrial loan (INDL), Total volume (TV) and GFCF (Gross fixed capital formation), and industrial development proxy Industrial Output (INDOPT). Data were collected from the CBN Statistical Bulletin and World Bank data for 1990-2022. Data set was described using descriptive statistics, correlation analysis ARDL with the help of E-VIEW version 9.0. The study concluded that MCAP, TV have significant relationship with INDOPT both on the short & long run respectively, meanwhile GFCF has significant relationship with INDOPT only on the long run. The study thereby recommends that positive impact of total volumes calls for proper policies to be implemented so as to attract more investors to invest in the market. There is also need to relax some stringent registration and operating procedures to enable more people and organizations to participate in the market. There is also need to institute policies that will further increase the value of market transaction in the market.
Outsourcing Accounting Functions and the Quality of Financial Reporting for SMEs in Lagos State
Authors: Adekoya Olufemi , Ojediran Sunday
Published: May 2024

This study delves into the outsourcing of accounting functions and its impact on the quality of financial reporting of Small and Medium-sized Enterprises (SMEs) in Lagos State, Nigeria. The study used a survey research design, and a questionnaire was adopted as a research instrument to elicit information from SMEs located within the Lagos metropolis. The population of the study consisted of 300 registered SMEs in Lagos State as of December 2022. Among them, 268 were located within the Lagos metropolitan area, representing the core focus of the study, while the remaining 32 were situated outside the metro region. Simple percentages were adopted to analyse the respondents' responses, while linear regression statistics were used to test the hypotheses formulated. The study found that there is a significant effect of outsourcing bookkeeping services on the financial reporting quality of SMEs in Lagos State; there is a substantial effect of outsourcing internal audit services on the financial reporting quality of SMEs in Lagos State; and also that there is a significant effect of outsourcing tax reporting services on the financial reporting quality of SMEs in Lagos state. The study concludes businesses should focus on their core competencies and entrust accounting preparation to professional accountants. As companies expand, outsourcing should be viewed as optimising productivity and business performance. The study recommended establishing a regulatory framework by the Financial Reporting Council of Nigeria (FRCN) to facilitate professional accountants' outsourcing of accounting functions and financial services, thus enhancing public confidence. SMEs are encouraged to embrace outsourcing of accounting functions to mitigate excessive costs and streamline operations, ultimately contributing to cost savings and efficiency improvements.
Nuevas Estrategias para la Minimización de Costos Totales de Inventario: El Caso de la Droguería San Victorino
Authors: Osso Porras Engellis Natalia , Ramírez Zarta Jorge Bernardo , Martínez Orrego José Eduardo
Published: May 2024

La pesquisa tuvo como propósito el diseño e implementación de nuevas estrategias para minimizar los costos totales de inventario dentro de la droguería San Victorino por medio del modelo EOQ. Para su desarrollo, se tuvo en cuenta el enfoque cuantitativo, de tipo deductivo - no experimental. Se buscó la optimización de los costos de pedido dentro de la droguería San Victorino, tomando como muestra dos productos: el Electrolic y la Leche Similac1 Kid 1+, los cuales tienen una demanda estable, pero a su a vez no generan una rentabilidad de la mima. De acuerdo con lo anterior, se debe tener en cuenta que el modelo a utilizar se inició desde cero con el modelo original hasta lograr una fórmula propia, donde se asignara a cada producto una fórmula exacta y así poder obtener los resultados que se esperaban para la optimización de costos, adaptando el modelo a las necesidades que tiene la droguería. Para lograr lo que anteriormente se mencionó, se utilizó el modelo determinístico y estocástico teniendo en cuenta la fluctuación de demanda y las condiciones dadas por la droguería respecto a los productos, con el fin de lograr mayor control en el sistema de inventario, para que, de esta forma, establecer confiabilidad con los productos faltantes y en stock. De esta forma, la formulación, medición y análisis de variables pueden indicar una situación de peligro a la hora de agotarse el inventario en la droguería o también en el aumento de demanda y costos.
Design of Water Quality Monitoring System Based on Internet of Things Technology
Authors: Norsuzila Yaacob  , Nur Syaza Zainali  , Amirul Asraf Abdul Rahman  , Azita Laily Yusof  , Murizah Kassim  , Ahmad Shazri Nazif Salehudin
Published: May 2024

Water quality is an assessment of how appropriate water is for a certain use or purpose, taking into consideration various physical, chemical, and biological factors that can affect its suitability. These factors can include pH, turbidity, dissolved oxygen, temperature, and the presence of pollutants or pathogens. The outdated method has been used by scientists and researchers to monitor the quality of water from the sources. The objective of this project is to create an efficient Internet of Things (IoT) system that can various sensors to continuously monitor water quality. The system is implemented using Arduino as the microcontroller, and sensors. A real-time monitoring system that is IoT-based was done to improve the examination process of the water sample. The system device is containing a NodeMCU ESP8266 microcontroller, pH, temperature, and turbidity sensors and uses the Blynk application. The system experiment results show that the device can show different readings based on the variety of water samples from different water bodies.
Block-scale Oil Palm Yield Prediction Using Machine Learning Approaches Based on Landsat and MODIS Satellite Data
Authors: Yuhao Ang  , Helmi Zulhaidi Mohd Shafri  , Yang Ping Lee  , Shahrul Azman Bakar  , Haryati Abidin  , Shaiful Jahari Hashim  , Mohd Na’aim Samad  , Nik Norasma Che’ya  , Mohd Roshdi Hassan  , Hwee San Lim  , Rosni Abdullah  , Yusri Yusup  , Syahidah Akmal Muhammad  , Teh Sin Yin  , Mohamed Barakat A. Gibril
Published: May 2024

Due to environmental threats and weather uncertainty concerns, oil palm yield prediction is crucial for sustaining crop production. This can be achieved through machine learning and utilising remotely sensed data to predict crop yield. However, the comparative studies on remotely sensed data in adopting the machine learning models are still limited due to the data accessibility. Therefore, we compare and evaluate the prediction accuracy between different satellites, namely MODIS and Landsat-7, using machine learning algorithms and the topology of deep neural networks. Random forest and stacking outperformed linear regression, ridge regression, and lasso regression for both Landsat-7 NDVI (R2= 0.78–0.80; RMSE=1.00- 1.26 tonnes per hectare; MAE=0.77- 0.79 tonnes per hectares; MAPE=0.03-0.04 tonnes per hectare) and MODIS NDVI (R2= 0.60–0.65 tonnes per hectares; RMSE= 2.72–2.81 tonne per hectares; MAE= 1.42-1.55, MAPE= 1.01- 1.02 tonnes per hectares). The Landsat-7 NDVI revealed that neural networks with a deeper network topology (R2= 0.85; RMSE= 1.42 tonnes per hectare; MAE=0.57 tonnes per hectares; MAPE=0.06 tonnes per hectare) outperformed neural networks with a baseline and broader network topologies in terms of performance. In contrast, MODIS-NDVI revealed that the neural network with a wider network topology had the highest overall prediction accuracy and the lowest prediction error (R2= 0.75; RMSE= 2.81 tonnes per hectare; MAE=2.27 tonnes per tonnes; MAPE= 0.13). Because of its higher spatial resolution in comparison to MODIS, landsat-7 NDVI used in neural networks with a deep network topology provided the best model performance. Although the use of NDVI as a single input factor may cause uncertainty in some extents, it is an efficient and reliable method for improving yield estimation with the use of medium-resolution satellites, which has important implications for early warning towards the reduction in yield production.
Experimental and Theoretical Assessment of Inverter-Operated Split Air Conditioner with Low GWP Alternative Refrigerants
Authors: Ashish Shivkumar Utage  , Kundlik Vitthal Mali  , Heramb C. Phadake
Published: May 2024

This article presents experimental evaluation and comparative analysis of low GWP alternative refrigerants, namely HC-290 (propane), HC-1270 (propylene), HC/HC-1270 blend, and HFC-32 (difluoro methane) as drop-in replacements for HCFC-22 (Chloro difluoro methane) in a typical 1.5 TR capacity inverter operated split type air conditioner (SAC). The experimental setup consisted of retrofitting an original HCFC-22 test unit following the soft optimization of the SAC system for each alternative refrigerant, followed by testing under controlled operating conditions as per the IS 1391, Part-1 standard at the half capacity and the rated capacity of inverter SAC. The results obtained were compared against the baseline HCFC-22 test unit. The optimized SAC gave EERIS (Indian Seasonal Energy Efficiency Ratio) of 4.63 for HC-290, 4.71 for HC-1270 and 4.87 for HC-290/HC-1270 blend, respectively increased by 8.94 %, 10.82 % and 14.58 % compared to HCFC-22. HFC-32 delivered the maximum cooling capacity of 6.78 kW, 3.67 % higher than baseline unit at the rated capacity. HC-290/HC-1270 blend exhibited the lowest power consumption and discharge temperature amongst all the refrigerants considered. The charge of flammable refrigerants has been optimized below LFL satisfying EN378 standard for the safety of inverter SAC in domestic applications.
Impact of Insulation using Bio-sourced Materials on the Thermal and Energy Performance of a Typical Residential Building in Morocco
Authors: Hicham Kaddouri  , Abderrahim Abidouche  , Mohamed Saidi Hassani Alaoui  , Ismael Driouch  , Said Hamdaoui
Published: May 2024

Among the measures to be taken to design and construct buildings with envelopes that are more energy-efficient, sustainable, and environmentally friendly is thermal insulation using a very wide range of insulating materials, either synthetic or of natural origin or derived from biomass. The present work represents a thermal and energy study aimed at improving the thermal comfort levels and energy requirements of a typical residential building located in the city of Al-Hoceima, Morocco. To this end, a series of numerical simulations were carried out using TRNSYS software to assess the impact of applying three bio-based insulation materials, namely hemp wool, wood fiber, and expanded cork, in the wall layer of the building. Different insulation scenarios were studied to make a choice that would ensure optimum comfort in the building with low energy demand. The results of this study show that insulating the roof with 8 cm of hemp wool contributes to energy savings of up to 36.7% and 35.2% for cooling and heating demand respectively. In thermal terms, improvements in the temperature inside the building have been achieved: in January, the maximum temperature recorded is 20.94°C, while in July, the maximum temperature is around 26.80°C.
Thermal Performance Study on Coconut Husk and Kenaf Fibre as Thermal Insulation Materials
Authors: Nik Kechik Mujahidah Nik Abdul Rahman  , Syamimi Saadon  , Raja Eizzuddin Shah Raja Muhammad Azhan Shah  , Abd Rahim Abu Talib  , Ezanee Gires  , Hanim Salleh  , Nasser Abdellatif
Published: May 2024

Waste heat accounts for 20-50% of industrial energy use, with Southeast Asia processing 40 million tonnes of oil equivalent. Heat losses especially in engines can reduce efficiency, leading to extensive studies to reduce heat loss and improve thermal performance. Heat recovery systems are being studied for recovering lower-grade energy, but not many of them are suitable and economically effective for low temperature waste heat. The objectives of this study are to develop low thermal conductivity agricultural-based material for thermal insulation and investigate the agricultural-based materials' impact on heat transfer rate. The agricultural-based materials that were used in this experiment were coconut husk and kenaf fibre due to their practically low thermal conductivity. The specimens were prepared using two different methods which were needle felting method and fibre-resin blending method. The experiment revealed that coconut husk fibre reinforced with resin (CHER) has the lowest thermal conductivity value of 0.0410 W/m.K and the lowest overall heat transfer rate of 2.85 W, making it an ideal thermal insulation material to be used for low-temperature applications.
Analysis of Sound Propagation Behaviors for Supersonic Jet on Far Field Region by Computational Aero-Acoustics (CAA) Simulation
Authors: Yudi Maulana  , Bukhari Manshoor  , Amir Khalid  , Izzuddin Zaman  , Djamal Hissein Didane  , Reazul Haq Abdul Haq  , Kamarul-Azhar Kamarudin  , Syahreen Nurmutia  , Abdul Rafeq Saleman  , Rio Marco Rathje  , Christin Rothe  , Mohd Nizam Ibrahim
Published: May 2024

Noise emission is an essential issue for the aviation industry, as it harms health and induces various physiological responses. The noise generated by supersonic jets is very intense. It will cause fatigue and even damage the human hearing system in the surrounding area of jet operation. Besides, the experimental and prototyping cost for the jet model is prohibitive, and it is a vast project and process that takes a lot of time to run. The purpose of this study is to determine the sound propagation behaviours of a supersonic jet in the far-field region and to analyse the consequences of the velocity of a supersonic jet on sound propagation of supersonic jet by using computational fluid dynamics (CFD) and computational aeroacoustics (CAA) simulations. This study focused on the perspective of observing the distance of the receiver when receiving the sound propagation of a supersonic jet, the observed angle of the receiver when receiving the sound propagation of a supersonic jet, and the velocity of the supersonic jet. The CFD and CAA analyses were performed in transient state simulation and the 2-inch Acoustics Reference Nozzle (ARN2). The result shows that the overall SPL throughout the frequency is proportional to the jet velocity of the supersonic jet. However, the distance and angle of the receiver gave different results in sound propagation behaviour. The results also conclude that as the distance between the receiver and jet nozzle exit increases, the overall SPL trend will decrease throughout the frequency increase. As the vertical distance between the receiver and the axisymmetric line of the jet nozzle increases, the frequency of the receiver starts to observe will decrease.
Experimental Investigation on Thermal Performance of Solar Air Heater using Nano-PCM
Authors: Muntadher Mohammed Ali Saeed  , Hassanain Ghani Hameed  , Hayder Azeez Neamah Diabil
Published: May 2024

Herein, the performance of a solar air heater (SAH) is experimentally investigated, utilising an array of tubes as the absorbent part. The study evaluates the impact of incorporating Al2O3-paraffin wax as a non-PCM storage medium in comparison to a traditional flat-plate solar air heater, specifically under Najaf-Iraq climate conditions. The SAH is positioned at an inclination of 32.1 degrees with respect to the horizon, allowing it to align optimally with the solar direction. The results reveal notable differences in thermal performance characteristics among the various models. The highest thermal efficiency values are observed for distinct configurations: the proposed model achieves about 55.2%, the wax-supported model reaches 55.9%, and the nano-PCM-reinforced model attains 57.7%, while the traditional model lags at 48.2%. Furthermore, an analysis of different air mass flow rates highlights a crucial finding. Specifically, an air mass flow rate of 0.01 kg/s results in a higher temperature exiting from the system compared to a flow rate of 0.02 kg/s. This is attributed to the extended interaction time between the passing air and the absorbing surface, facilitating enhanced heat exchange. Consequently, the system's thermal efficiency experiences an increase. The study underscores the superior thermal performance and efficiency of the tube array nano-PCM collector type under Najaf city-Iraq climate conditions.
On the Development of a Threat Driven Model for Campus Network
Authors: Owolafe Otasowie , F. Thompson Aderonke , Oronti Adewale , A. Ayeni Olaniyi , O. Abereowo Oladimeji , Ogunlola Yetunde , K. Alese Boniface
Published: May 2024

Technology as the foundation of almost every aspect of our lives has come to stay and moving with the trend is now the order of the day. Educational institutions are not left out in the advancement struggle. The use of these technologies in educational institutes comes with its attendant evil including but not limited to ransomware attack, denial of service attack, phishing attack, malware attack and the likes. This research therefore, aims to model the different attack types common to campus network. The traffic used for modelling the attack was collected from universities in the western part of Nigeria and the STRIDE and DREAD models were employed. The analysis showed that DoS (fail to auth to VPN to lock out user accounts) had the highest risk score (43) while DoS (complex search queries, CPU exhaustion) had the lowest score (26).
Provision of Coaching and Mentoring Experiences: Narratives of Public Elementary School Teachers
Authors: MEMORIAL RIZAL
Published: May 2024

This study narrated the lived experiences of public elementary school teachers who have undergone coaching and mentoring, shedding light on their coping strategies for addressing weaknesses and their insights into educational learning. This employed qualitative phenomenological research. Ten participants, recipients of coaching and mentoring, provided rich narratives that coalesced around three primary themes: engagement in professional development, adequacy of training resources, and the demands of the work environment. Concurrently, coping strategies for the challenges associated with coaching revealed three major themes: establishing teaching competence, demonstrating collaborative practices, and embracing reflective practices. Furthermore, the study identified two overarching learning insights derived from teachers' lived experiences: a dedication to being work-oriented and motivated. School leaders must recognize the transformative potential of coaching and mentoring in enhancing teaching practices. Teachers, in turn, should actively embrace and participate in any technical assistance provided. The Department of Education officials are urged to leverage the study's findings to develop a centralized professional development program that aligns with teachers' competencies and needs. Finally, students are encouraged to actively engage in classroom activities to foster a meaningful and holistic educational outcome.
EFFECT ON OBSTETRIC RESULTS OF POLYCYSTIC OVARY SYNDROME
Authors: Ulubaşoğlu Hasan , Kuru Pekcan Meryem , Yılmaz Gamze , Özakşit Gülnur , Moraloğlu Tekin Özlem
Published: May 2024

Aim: The aim of this study is to investigate the effect of polycystic ovarian syndrome (PCOS) on obstetric and neonatal outcomes.
Materials and Method: The:This study was conducted as a randomized controlled prospective at Ankara City Hospital obstetric clinic between 2020-2021.Total included a total of 200 pregnant women (18-45 years), of whom 101 had PCOS and 99 were healthy controls.Demographic characteristics of the groups were analyzed. The systolic blood pressure, diastoic blood pressure,insulin resistance , ovulation induction, insemination and newborn admission rates of the pregnant group were evaluated. Maternal age, fetal birth weight, gravidity, parity, BMI, gestational age, gestational age according to ultrasound, women height, weight, (BMI), weight gained during pregnancy, hemoglobin values were were compared between both groups.
Results:In terms of the rates of ovulation induction, insemination, and admission to the neonatal unit for follow-up in pregnant women with PCOS were significant different found.Pregnant women with PCOS had higher rates of ovulation induction, insemination, and admission to the neonatal unit for follow-up.It was observed that cesarean section rates were higher in pregnant women with PCOS.
Conclusion:It should be consıdered that pregnant pregnants wıth PCOS are more lıkely to have a cesarıan sectıon and theır newborn's are more lıkely to be admıtted to the newborn unıt for follow-up .This situation should be taken into consideration in the management of pregnant women.
GRB Afterglows with Energy Injections in AGN Accretion Disks
Authors: Huang Bao-Quan , Liu Tong , Li Xiao-Yan , Wei Yun-Feng
Published: May 2024

Active galactic nucleus (AGN) disks are widely considered potential hosts for various high-energy transients, including gamma-ray bursts (GRBs). The reactivation of GRB central engines can provide additional energy to shocks formed during the interaction of the initially ejected GRB jets with the circumburst material, commonly referred to as energy injections. In this paper, we study GRBs occurring in AGN disks within the context of energy injections. We adopt the standard external forward shock (EFS) model and consider both short- and long-duration GRB scenarios. Light curves for two types of radiation, namely, the radiation from the heated disk material (RHDM) and GRB afterglows, are computed. We find that the energy injection facilitates the EFS to break out from the photosphere of the low-density AGN disk at relativistic velocity. Moreover, the energy injection almost does not affect the RHDM but significantly enhances the peak flux of the GRB afterglows.
Detection of a 2.85 μm Feature on Five Spinel-rich Asteroids from JWST
Authors: Gomez Barrientos Jonathan , de Kleer Katherine , Ehlmann Bethany L. , Tissot Francois L. H. , Mueller Jessica
Published: May 2024

Ground-based observations of “Barbarian” L-type asteroids at 1–2.5 μm indicate that their near-infrared spectra are dominated by the mineral spinel, which has been attributed to a high abundance of calcium-aluminum inclusions (CAIs)—the first solids to condense out of the protoplanetary disk during the formation of the solar system. However, the spectral properties of these asteroids from 2.5–5 μm, a wavelength region that covers signatures of hydrated minerals, water, and organics, have not yet been explored. Here, we present 2–5 μm reflectance spectra of five spinel-rich asteroids obtained with the NIRSpec instrument on the James Webb Space Telescope. All five targets exhibit a ∼2.85 μm absorption feature with a band depth of 3%–6% that appears correlated in strength with that of the 2 μm spinel absorption feature. The shape and position of the 2.85 μm feature are not a good match to the 2.7 μm feature commonly seen in carbonaceous CM meteorites or C-type asteroids. The closest spectral matches are to the Moon and Vesta, suggesting commonalities in aqueous alteration across silicate bodies, infall of hydrated material, and/or space weathering by solar wind H implantation. Lab spectra of CO/CV chondrites, CAIs, as well as the minerals cronstedtite and spinel, also show a similar feature, providing clues into the origin of the 2.85 μm feature.
Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars: Paper I—HD 35548 and HD 89822
Authors: Monier Richard
Published: May 2024

The weak line of Hg ii located at 5677.10 Å is used to measure the mercury abundance in two mercury rich stars, HD 35548 and HD 89822. The synthesis of this line, using the current atomic parameters available in NIST, confirms that mercury is very abundant in both stars. The abundance derived from this line is in very good agreement with the abundance derived from the commonly used line at 3983.93 Å for HD 35548 but it is smaller for HD 89822.
Pharmacological prophylaxis and functional restoration of the lower limb in total knee arthroprosthesis
Authors: Vakrilova Becheva Maria Stamova , Kirkova-Bogdanova Angelina Georgieva , Ivanova Stefka Аchkova , Kazalakova Krasimira Milcheva
Published: May 2024

The complexity of the movements of the bones of the knee joint requires an anatomical study to construct a knee prosthesis. The reasons for knee replacement are related to wear of the articular cartilage, which leads to pain, deformation, and limitation of movements. The consequences of the surgical intervention allow functional restoration of the knee joint and the supporting function of the lower limb. Kinesitherapy begins the day after surgery and aims to reduce pain, restore mobility of the knee joint, actively lock the knee during extension, increase and maintain muscle strength, and ensure the functional independence of patients. To a large extent, the volume of movement is restored, and the pain symptoms are reduced. Patients have the comfort of everyday movements and the possibility of participating in certain sports activities—swimming, cycling, and golf. The paper deals with pharmacological prophylaxis, the kinesitherapeutic program, and total knee arthroprosthesis.
Telemental Health Assessment and Implications for Intimate Partner Violence in Rural Settings
Authors: O'Briant Deb , Clements Paul Thomas
Published: May 2024

Violence and abuse in rural America are exacerbated by limited access to support services for victims of intimate partner violence (IPV) due to family connections with people in positions of authority, geographic isolation, transportation barriers, stigma of abuse, lack of available shelters and affordable housing, poverty as a barrier to care, and other challenges. Victims of abuse who live in small communities may be well-acquainted with local health care providers and often voter-elected law enforcement officers. Individuals may fear being seen walking into a mental health clinic, with subsequent (and reality-based) fear that deter them from seeking help. Thus, advances in technology are becoming a much-needed option. Although telehealth has been used for some time in rural health settings, only in more recent years has there been an increase toward quality trauma-informed care. With increasing focus on the impact of social determinants of health, agencies continue to shift to telehealth to provide virtual support. Specifically, telehealth visits can potentially extend the reach of the limited number of primary care and mental health providers to those who are significantly in need of services. [
Journal of Psychosocial Nursing and Mental Health Services, 62
(10), 25–30.]
Purinergic P2X7R expressed on regulatory T cells potentially links molecular mimicry to autoimmune responses
Authors: Hasan Djo
Published: May 2024

The immune system is meant to protect against invading microbes. Although this system is effective against many microbes, some can use molecular mimicry to turn the immune system against the host and activate autoimmune responses. The resulting autoimmunity has significant implications for public health and healthcare costs. It is well known that regulatory T cells (Tregs) are crucial for self-tolerance and that their function is impaired after exposure to self-antigens or antigens with molecular mimicry, leading to the activation of autoimmune responses. How molecular mimicry disrupts Tregs in this manner remains under debate. This review contributes to the field of the pathogenesis of autoimmunity by proposing that purinergic signaling in the lymph nodes, with extracellular ATP, ADP, and adenosine as ligands, plays a pivotal role in this process. Repeated or high-dose microbial infection causes the release of large amounts of extracellular ATP sufficient to reach the threshold of extracellular ATP levels for activating P2X7 purinergic receptors (P2X7Rs) on dendritic cells and Tregs. This hampers the ability of Tregs to suppress autoimmune responses. Crucially, P2X7Rs are activated at very high extracellular ATP levels, thus only after repeated or high-dose infection with microbes. Arguably, in contrast to the rapid elimination of microbes with foreign antigens, the clearance of invading microbes that employ molecular mimicry requires the activation of P2X7Rs at the expense of self-tolerance. Because all processes required to activate autoimmune responses occur in secondary lymphoid organs, this article hypothesizes that, contrary to current convention, microbes do not need to enter organs to initiate autoimmunity. However, some types of microbes can prevent P2X7R-induced Treg disruption by converting extracellular ATP to adenosine, mitigating autoimmune responses resulting in chronic diseases with less severe inflammation. The proposed hypothesized mechanism has potential implications for the understanding and treatment of autoimmune disorders.
Spatial twisted central configuration for Newtonian ($ 2N $+1)-body problem
Authors: Ding Liang , Wang Jinrong , Wei Jinlong
Published: May 2024

For a spatial twisted central configuration of the Newtonian ($ 2N $+1)-body problem where $ 2N $ masses are at the vertices of two paralleled regular $ N $-polygons with distance $ h > 0 $, and the twist angle between the two regular $ N $-polygons is $ 0\leq\theta < 2\pi $, we study the sufficient and necessary conditions for the existence of the spatial twisted central configuration. Additionally, we obtain the uniqueness of the spatial twisted central configuration.
Optimality conditions associated with new controlled extremization models
Authors: Saeed Tareq
Published: May 2024

Applying a parametric approach, in this paper we studied a new class of multidimensional extremization models with data uncertainty. Concretely, first, we derived the robust conditions of necessary optimality. Thereafter, we established robust sufficient optimality conditions by employing the various forms of convexity of the considered functionals. In addition, we formulated an illustrative example to validate the theoretical results.
An improved sampled-data control for a nonlinear dynamic positioning ship with Takagi-Sugeno fuzzy model
Authors: Zheng Minjie , Su Yulai , Chen Guoquan
Published: May 2024

This article considered the sampled-data control issue for a dynamic positioning ship (DPS) with the Takagi-Sugeno (T-S) fuzzy model. By introducing new useful terms such as second-order term of time, an improved Lyapunov-Krasovskii function (LKF) was constructed. Additionally, the reciprocally convex method is introduced to bound the derivative of LKF. According to the constructed LKF, the sampling information during the whole sampling period was fully utilized, and less conservatism was obtained. Then, the stability condition, robust performance, mode uncertainty and sampled-data controller design were analyzed by means of the linear matrix inequality (LMI). Finally, an example was given to demonstrate the effectiveness of the proposed method.