bluuebunny/crossref_metadata_2025 huggingface dataset:
La Planificación Estratégica y su Relación con las Estrategias de Promoción en la Panadería Celendín en la Ciudad de Moyobamba, Periodo 2017
Authors: Ojanama Ishuiza Lloysi Marlene , Robledo Alberca Dolis
Published: January 2024

Esta investigación se llevó a cabo mediante la aplicación de encuestas centradas en la planificación estratégica y las estrategias de promoción en la Panadería Celendín de Moyobamba. Su objetivo principal fue determinar la conexión entre la planificación estratégica y las estrategias de promoción en esta panadería durante el año 2017. Se empleó un enfoque de investigación aplicada, con un nivel correlacional y un diseño no experimental de tipo transversal. La muestra consistió en 56 clientes. La recopilación de datos se efectuó mediante encuestas, utilizando la metodología de correlación de Pearson, que arrojó un coeficiente de 0.725. Este resultado indica una correlación positiva media entre las variables "Planificación estratégica" y "Estrategias de promoción". Además, se observó que el valor de significancia fue de 0.023, siendo inferior a 0.05. Esto implica que ambas variables están significativamente relacionadas. Es decir, se concluyó que la planificación estratégica guarda una relación del 52.56% con las estrategias de promoción, confirmando la hipótesis de investigación (H1) que afirmaba la conexión directa entre la planificación estratégica y las estrategias de promoción en la Panadería Celendín de Moyobamba durante el periodo 2017.
ЕНИСЕЙСКАЯ РУНИЧЕСКАЯ ПИСЬМЕННОСТЬ И СВОЕОБРАЗИЕ СИБИРСКО-ТЮРКСКОГО МАНИХЕЙСТВА
Authors: Кызласов Игорь Леонидович
Published: January 2024

Рисунки, а затем лично-фамильные тамги и молитвенные надписи средневековья не нарушают петроглифы былых времен, соответственно, сохранялись горные культы. Курганы VI–VIII вв. продолжают кладбища II в. до н. э. – V в. н. э., что свидетельствует о том, что осознавались кровные связи с предками. В VIII в. монументальный манихейский храм возвели в долине, где по ХХ в. оставались нетронутыми 14 скульптур и около 15 менгиров. Храм действовал среди языческих идолов, ближайшие были от него в 100–140 м. Достигнув Енисея, манихейство включило в свою религиозную практику руническую письменность, а вместе с нею и комплекс мировоззрения, сохранявшего почитание памятников предков. Скопления наскальных молитвенных надписей указывают на места былого расположения манихейских монастырей, состоявших из легких, не оставивших следов построек. На алтайской скале рунами написано наименование одного такого монастыря. Енисейская эпитафия из Суджи (Монголия, Е 47) – подлинный внутренний источник Древнехакасского государства – повествует о сооружении монастыря для 100 послушников, возглавлявшихся манихейским вероучителем-маром. Сибирские и центральноазиатские миссионеры в IХ–X вв. принесли манихейский обычай молитвенного письма на скалах на земли современного Кыргызстана и южного Казахстана. Енисейские надписи в кельях обнаружили приход манихейских паломников в пещерные монастыри Восточного Туркестана. Взаимное проникновение новых и местных верований сформировало особое религиозное направление – северное, сибирско-тюркское манихейство, отличительными признаками которого являются три названных типа монастырско-храмовых комплексов и енисейские рунические надписи. Рядом с привнесенной культовой архитектурой продолжает бытовать сохранение традиционных горных культов. 

Благодарность: Работа выполнена в рамках Государственного задания Института археологии РАН № НИОКТР 122011200266-3
Animal-based metaphors in Igbo
Authors: Chinyere Onyedikachi , Onwukwe Orji Chimaobi , Onukawa Edith Ngozi
Published: January 2024

The study examined animal-based metaphors in Igbo with a focus on their cultural and contextual meanings and interpretations. It adopted the pragmatic methodological approach involving interviews with 20 participants drawn from various Igbo culture areas to collect animal-based metaphors as well as their meanings and interpretations. Introspection also featured in data collection as the authors are native speakers of Igbo. The study revealed that animal-based metaphors are used to describe human personality, conduct or behavior. This is essentially by the process of associating some features or attributes of the animals with human conduct and personality. The study further identified that some metaphors could be used in dual metaphorical sense, i.e., derogatory/negative, and commendatory/ positive, and these depend on the cultural connotations as well as contextual meanings and interpretations of the referents. The study concludes that animalbased metaphors in the Igbo language and culture reflect and represent the description of a person, conduct or behavior, as well as beliefs and realities among the Igbo.
Assessment of the clinical effectiveness and safety of immune checkpoint inhibitors for glioblastoma: A systematic review
Authors:   Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Calvin Nicholas , Octo Fridoline Sharon ,   Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
Published: January 2024

Glioblastoma (GBM) is a malignant primary brain tumor which is commonly found in humans. Conventional therapeutic approaches for GBM offer only a short median overall survival (MOS), thereby accentuating its poor clinical outcome. Despite the promising potential shown by use of immune checkpoint inhibitor (ICI) in animal models to treat GBM, human trials result remains inconclusive. This systematic review evaluated the safety and clinical efficacy of ICIs in GBM patients. A literature search from Embase and MEDLINE (Ovid) was completed in October 2023. A total of 10 suitable articles, which encompass 168 patients (164 recurrent and 4 newly-diagnosed GBM), are taken into account. 3 studies assessed the OS, 7 studies assessed the PFS and/or response assessment in neuro-oncology (RANO) criteria and 8 studies assessed the safety, tolerability and/or adverse events. These studies show that the range of MOS of ICI treatments was between 2.6-10.4 months (MOS using current standard treatment for recurrent GBM = 3.5-12.5 months). The median PFS and the median period until patients reach partial response score based on RANO criteria are ranging from 1.5 months to 4.6 months (PFS using current standard treatment is 5.5 months). In conclusion, ICIs are safe in patients with GBM. Reported adverse effects only include mild fatigue, headache, hyperglycemia, and diarrhea. However, ICIs display suboptimal clinical efficacy compared to conventional GBM treatments. Therefore, further research is needed in order to improve the clinical efficacy of ICIs.
Impacts of Gold Mining on the Social, Cultural, and Economic Structures of Kotabunan Village, East Bolaang Mongondow Regency
Authors: Ambarak Faisal , Niode Burhan , Goni Shirley Y. V. I.
Published: January 2024

One of the natural riches that our country has is gold. In managing wealth in a small way, many problems are faced. The problems that are most in the spotlight are related to the social life of communities around mining areas. This research was conducted to analyze the existence of gold mining companies in the social life of the community in Kotabunan Village, Kotabunan District, East Bolaang Mongondow Regency. The research design used is qualitative. Data was collected through interviews, observation and searching for documents related to the problem object. The research findings show that the existence of a gold mining company in Kotabunan Village, Kotabunan District, East Bolaang Mongondow Regency has brought about changes in people's lives, both positive and negative impacts which can be seen in the aspects of Social Structure, Cultural Structure and Economic Structure. Changes in Cultural Structure can be seen in changes in cultural structure. Changes in economic structure have greatly influenced people's lives, especially with the existence of corporate social responsibility (CSR) from gold mining companies, enabling people through training, basic food assistance, and changing professions as miners or managing businesses.
Improving Government and Community Synergy in Rabies Control and Overcoming in Tomohon City: Study at the Health and Agriculture Department
Authors: Lelet Nina Elisabet , Tulusan Femmy M. G. , Waleleng Grace J.
Published: January 2024

Rabies, known as mad dog disease, is an acute infectious disease that can attack humans. To date, many people have been affected by rabies, including those in Tomohon City. This research was conducted to analyze the synergy between the government and the community in controlling rabies in Tomohon City. The research design used is qualitative. Research findings show that Tomohon City is one of the cities in Indonesia that is not yet free from rabies. The policies set by the Tomohon City Government have not been able to suppress rabies cases. Weak communication and coordination from related agencies and lack of community support are the main causes. The strategy that needs to be implemented is related to problem solving, the role of government and communication networks. Therefore, it is necessary to strengthen border area control over the traffic of animals that transmit rabies, carry out direct outreach and education to the public about the prevention, control and management of rabies, impose sanctions on market traders who still sell meat from animals that transmit rabies without health documents and increase cooperation and coordination between the Subdistrict Government, Subdistrict Government, and related Government Agencies as well as with the Community.
The Effect of Attractions, Amenities and Accessibility on Visiting Decisions during the Covid-19 Pandemic in the Malino Area, Gowa Regency
Authors: Klasum ER Ummi , Nurjannah Nurjannah , Simatupang Violetha
Published: January 2024

During the COVID-19 Pandemic, tourists certainly require the protection in minimizing the transmission of the COVID-19 virus during travel activities in the Malino Region, Gowa Regency. With the hope of gaining back the public trusts. As it is believed that tourism activities will be achieved if these activities are equipped with tourist travel facilities. This study aims to analyse the effects of Attraction (X1), Amenity (X2) and Accessibility (X3) on Visiting Decisions (Y) during the COVID- 19 Pandemic in the Malino Region, Gowa Regency. This study uses quantitative methods by processing data obtained from the research location. The population in this study were all respondents who had visited Malino during the COVID-19 pandemic as many as 71,288 people and the number of samples selected was 398 individuals using a research questionnaire as a research instrument which was then processed using SPSS software version 23. From the results of the study, it indicates that the partial test results on Attractions (X1) have a significant effect on Visiting Decisions (Y), Amenity (X2) does not have a significant effect on Visiting Decisions (Y) and Accessibility (X3) has a significant effect on Visiting Decisions (Y) and simultaneous testing that Attractions (X1), Amenity (X2) and Accessibility (X3) have a significant effect on visiting decisions (Y).
The Influence of the Synergy of Pentahelix Elements and Compensation on the Welfare of Hotels’s Employees During the Covid – 19 Pandemic in the City of Makassar
Authors: Nasir Muh. Ersyad , Sabur Atang , Sutanto Leo
Published: January 2024

This study aims to analyze the synergy of the pentahelix elements, compensation and welfare of hotel employees as well as the effect of the synergy of pentahelix elements and compensation on the welfare of hotel employees during the Covid-19 pandemic in the city of Makassar. This study uses a quantitative descriptive method by processing data obtained from the research location. The population in this study were all hotel employees in the city of Makassar as many as 14,248 people and the number of samples selected was 389 people, using a questionnaire as a research instrument which was then processed using SPSS software version 22 and using Likert scale analysis, partial (t test), simultaneous (F test), multiple linear regression, and the coefficient of determination. The results of the study indicate that the synergy of the pentahelix elements, compensation and welfare of hotel employees affected by the Covid-19 pandemic in Makassar City is considered good. The pentahelix element synergy variable (X1) does not significantly affect the welfare of hotel employees (Y). While the compensation variable (X2) has a positive and significant effect on the welfare of hotel employees (Y). However, simultaneously, the synergy of the pentahelix and compensation elements has a positive and significant impact on the welfare of hotel employees during the Covid-19 pandemic in the city of Makassar.
Bifurcation analysis of phytoplankton-fish model through parametric control by fish mortality rate and food transfer efficiency
Authors: Das Kalyan , Madhusudanan V. , Srinivas M. N. , Kabir Md Humayun , Gani Md Osman , Islam Sardar M. N.
Published: January 2024

An Algae-zooplankton fish model is studied in this article. First the proposed model is evaluated for positive invariance and boundedness. Then,the Routh-Hurwitz parameters and the Lyapunov function are used to determine the presence of a positive interior steady state and the criteria for plankton model stability (both local and global). Taylor’s sequence is also used to discuss Hopf bifurcation and the stability of bifurcated periodic solutions. The model’s bifurcation analysis reveals that Hopf-bifurcation can occur when mortality rate and food transfer efficiency are used as bifurcation parameters. Finally, we use numerical simulation to validate the analytical results.
Dynamical Behavior in Prey-Predator Model with Mutualistic Protection for Prey
Authors: Putri Laras Kinanti , Savitri Dian , Abadi Abadi
Published: January 2024

This article reconstructs the model of predator-prey mutualistic protection based on a journal written by Revilla and Krivan (2022). The predator-prey model considers mutualistic protection for the prey. The model focuses on the analysis of equilibrium points and combines an adaptive model to study the influence of both models on predator-prey dynamics. This research continues the stability analysis and numerical simulations of the predator-prey model with mutualistic protection to examine the impact of mutualistic protection on prey dynamics in the model. The research process begins with a literature review, reconstructing the predator-prey model, determining equilibrium points, analyzing stability at the equilibrium points, conducting numerical simulations including bifurcation diagrams and phase portraits of the model solutions, and drawing conclusions. The analysis yields three equilibrium points: the unstable co-extinction of both populations, predator extinction, and the conditionally stable coexistence of both populations. Based on the analysis results, there are changes in the system solutions, with the originally stable E3 becoming unstable. There is also a change in E2 from being unstable to stable. Through numerical continuation with variations in the parameter representing the mutualistic protector’s preference for prey resources (u), a transcritical bifurcation (Branch Point) is obtained at u = 0.888889. The simulation results demonstrate that (u) can influence the stability of predator and prey populations.
Kepraktisan E-Modul Flip Materi Lingkaran Berbasis Problem Based Learning
Authors: Limalo Sri Agustin , Abbas Nurhayati , Panigoro Hasan S.
Published: January 2024

This study aims to test the practicality of the problem-based mathematics e-module based on circle material. The type of research used is comparative descriptive research. The subjects of this study were teachers and students of class IX at SMP Negeri 2 Tilamuta. The results showed that the assessment of using Problem Based Learning -based mathematics e-modules received positive responses from teachers with an average percentage of 87.23% and positive responses from students with an average percentage of 78.45%. The average percentage of teacher and student responses is in the very good category, the module meets the practical criteria. Based on the study result, it can be concluded that the Problem Base Learning -based mathematics e-module, Circle material, fulfils practicality so it is suitable for use in learning.
Pengembangan E-Modul Berbasis Flip Book Berdasarkan Model Plomp Materi Segi Empat
Authors: Yunus Silvani , Abbas Nurhayati , Djakaria Ismail
Published: January 2024

This research aims to develop a flip book-based e-module for mathematics learning media on rectangular material. This is a research and development aiming to produce a product using the Plomp development model. The subjects of this research are the students in grade VII of SMP Negeri 2 Kwandang. The finding shows that the validity assessment by the material expert and media validators for the e-module obtains an average score of 4,25 and 4,43 respectively. In addition, the assessment of teachers and students on flip book-based e-module on rectangular material obtains positive responses with an average percentage from teachers of 85,39% and from students of 79,85%. The average percentage of positive responses from teachers and student assessment in the very good category, so the e-module can be concluded that the flip book-based e-module for mathematics on rectangular material meets the validity and practicality criteria so that it is suitable for use in learning.
Kemampuan Berpikir Kreatif Matematis Ditinjau dari Self-Esteem pada Model PBL dengan Pendekatan STEAM
Authors: Fitria Khoirin Nida , Dwijanto Dwijanto , Dewi Nuriana Rachmani
Published: January 2024

The mathematical creative thinking ability of students at Duta Aswaja Kudus Junior High School is still low. Learning in the classroom will be more effective if teachers pay attention not only to cognitive aspects but also affective aspects, especially students' self-esteem. Thus, a learning model that can improve students' creative thinking skills and self-esteem is needed. One of the learning models that facilitates students' creative thinking skills and self-esteem is the PBL model with STEAM approach. The method used is a mix method type of sequential explanatory design.  The population in this study were 8th grade students of Duta Aswaja Kudus Junior High School. Population and sample collection for quantitative research using random sampling techniques and for qualitative research using purposive sampling techniques. Students of class VIII A as the experimental class and class VIII C as the control class are 35 students each. The findings in this article are that the PBL model with STEAM approach is effective in learning mathematics, and has a good contribution in improving mathematical creative thinking skills when compared to expository learning. The achievement of mathematical creative thinking ability of high self-esteem students fulfills all four indicators of fluency, flexibility, originality, and elaboration. Students with moderate self-esteem can use their own language, new ways, and unique or in other words fluency is achieved by students. As for flexibility, originality, and elaboration, they are different. Students with low self-esteem are able to understand what is presented in the problem but the four indicators of fluency, flexibility, originality, and elaboration have not been met.
Numerical Analysis of the Phase Change Material Impact on the Functionality of a Hybrid Photovoltaic Thermal Solar System in Transient Conditions
Authors: Mohamed Bouzelmad  , Youssef Belkassmi  , A. S. Abdelrazik  , Abdelhadi Kotri  , Mohamed Gounzari  , Mustapha Sahal
Published: January 2024

Combining phase change material with a hybrid photovoltaic thermal system can be a reasonable solution for excessive temperature distributions and inadequate heat control in traditional photovoltaic thermal modules. This work proposes a mathematical model to assess the transient processes of a hybrid photovoltaic thermal solar system with phase change materials in comparison to a conventional photovoltaic panel. The studied hybrid module is composed of (the cover glass, photovoltaic plate, absorber plate, phase transition materials layer, and water in the tubing). The employed system parameters were selected on an energy-saving basis in the different system layers. The differential equations determining energy exchange between the different parts in both systems were numerically solved using the Finite Difference Method applied to MATLAB software. The transient model's validity is first tested by comparing the prediction temperatures of each layer of the photovoltaic thermal system with those numerical and experimental studies in literature in which the maximum discrepancy is less than 1.5°C. Then, the results of the transient model are investigated in real outdoor weather conditions using meteorological data. The results illustrated that the hybrid module diminishes the temperature of the photovoltaic layer by roughly 21.9°C compared to the standalone photovoltaic panel, leading to a 1.95 % enhancement in electrical performance.
Convective Boundary Layer Flow of Williamson Hybrid Ferrofluid over a Moving Flat Plate with Viscous Dissipation
Authors: Wan Muhammad Hilmi Wan Rosli  , Muhammad Khairul Anuar Mohamed  , Norhafizah Md Sarif  , Huei Ruey Ong
Published: January 2024

Specifically, the oxide ferroparticles in ferrofluid has low thermal conductivity thus limiting its potential in the application of heat transfer. Increasing the volume fraction ferroparticles is one of the ways to increase the efficiency but this will cause clogging in the flow system. The present research investigated the convective boundary layer flow of a Williamson hybrid ferrofluid over a moving flat plate with viscous dissipation effects. Magnetite (Fe3O4) and copper (Cu), taken as hybrid ferroparticles, are suspended in Williamson fluid represented by human blood are believed to improve the heat transfer capabilities of the ferrofluid. The governing equations in the form of partial differential equations are reduced to ordinary differential equations by using the similarity transformation. The Runge-Kutta-Fehlberg (RKF45) method is used to numerically solve the transformed equations obtained. The effects of the magnetic parameter, the Williamson fluid parameter, the moving plate parameter, and the Eckert number on the velocity profiles, the temperature profiles as well as the reduced skin friction coefficient and the reduced Nusselt number are analyzed and discussed. It is revealed that Williamson hybrid ferrofluid has higher heat transfer capabilities and lower skin friction compared to the Williamson ferrofluid at the same volume fraction. In addition, the magnetic parameter increases the skin friction while the moving plate parameter increases the reduced Nusselt number.
Production of Hydrogen from Rice Straw through Enzymatic Hydrolysis by Optimally Prepared Crude Cellulase Mixture Followed by Fermentation and Its Hydrodynamic Study
Authors: Arief Widjaja  , Nadiem Anwar  , Tantular Nurtono  , Sugeng Winardi
Published: January 2024

Production of hydrogen from rice straw was conducted through alkaline pretreatment, enzymatic hydrolysis, and fermentation. The hydrodynamic study was performed to investigate the effect of mixing to hydrogen gas produced during the heterogenous mixture in the fermentation tank. 2 % NaOH was found effective in reducing the lignin content in rice straw as evidenced from quantitative data and confirmed by the SEM image. Based on the optimum values of pH and temperature as well as the stability of enzyme, the hydrolysis was performed at pH 5.5 and 40 oC. The mixture of crude cellulases was able to give higher conversion than cellulase from one source of fungi and also higher than the conversion using pure commercial cellulase from Aspergilus niger. A unit activity ratio of 1 U A. niger cellulase to 2 U Trichoderma reesei cellulase was able to increase the reducing sugar concentration by 16%. Hydrogen fermentation was affected by the stirring speed in which increasing the stirring speed from 46 to 165 rpm increased the hydrogen recovery from 0.025 to 0.085 mol H2/mol glucose. Simulations showed that the intensity of turbulence was greatest in the impeller area. By increasing rotational speed, the intensity of turbulence in all parts of the reactor will be more evenly distributed which can increase the diffusion of the substrate to the cell surface and increase the rate of biogas leaving out the solution. Furthermore, by increasing the stirring speed, the volume fraction of biogas at the bottom of the reactor is getting smaller which indicates more gas has risen to the surface and left the reactor. The study was the first report to study the hydrodynamic of hydrogen production from lignocellulose during the heterogenous fermentation mixture.
The Development of Hybrid Cooling Photovoltaic Panel by using Active and Passive Cooling System
Authors: Irwan Yusoff  , Swee Yi Jun  , Mohd Hafizuddin Mat  , Muhammad Irwanto Misrun  , Leow Wai Zhe  , Safwati Ibrahim  , Nurul Husna Abd Wahab
Published: January 2024

Photovoltaic (PV) panel are crucial in the conversion of solar irradiance into electrical energy. However, the efficiency of PV panel is indirectly influenced by the surface temperature of the panels. According to typical PV module standards, the effect of panel temperature on efficiency is -0.47 %/°C, which indicates that a rise of 1°C reduces the PV panel's efficiency by 0.47 %. The efficiency of the PV panel achieves its maximum value when the panel temperature reaches 25 ℃, which is the standard test condition (STC). Moreover, a high working temperature can also reduce the lifetime of the PV panel. Based on the limitations that have been highlighted above, this project aims to design and develop a hybrid cooling PV panel by using active and passive cooling system with Arduino UNO R3. In this project, 100 W monocrystalline photovoltaic panel has been selected to analyze the result before and after installation of hybrid cooling system. Active cooling system is a water sprinkler system which is applied in front of the PV panel. Meanwhile, the passive cooling system is a combination of hydrogel beads and the heat-sink cooling system which will be installed behind the PV panel. In result, the average power output of PV panel without cooling was 30.59 W while the average power output of PV panel with hybrid cooling was 34.66 W. Moreover, the average power increased due to cooling was 13.31 %. In a nutshell, the proposed project has the ability to develop a hybrid cooling system to improve the performance and efficiency of the PV panel in order to increase the power output of the panel.
Advancing Interceptor Design: Analyzing the Impact of Extended Stern Form on Deep-V Planing Hulls
Authors: Samuel Samuel  , Rizal Kurnia Praja  , Deddy Chrismianto  , Muhammad Luqman Hakim  , Ahmad Fitriadhy  , Aldias Bahatmaka
Published: January 2024

The deep-v planing hull is designed to operate at high speeds because most of the hull’s weight is supported by the hydrodynamic lift acting on the hull base. Planing hull form characteristics such as deadrise angle, chines, and extended stern significantly affect the ship’s hydrodynamic performance. The addition of the interceptor is an innovation to reduce the total resistance of the ship by controlling the trim angle. However, the form of the ship’s stern is not always the same; thus, it needs to be studied based on the form of the ship’s stern. The extended stern form refers to modifying the hull geometry at the rear, particularly the stern extension beyond its conventional length. This research aimed to analyze the hydrodynamic performance of the interceptor at the extended stern angle. Furthermore, Computational Fluid Dynamics (CFD) simulations were performed to analyze the effect of the extended stern form. A numerical model of the deep-V planing hull with variations of the stern extension was developed, and the flow behavior around the hull was analyzed using CFD techniques. Simulations were conducted under various operating conditions, including different speeds and interceptor strokes. The results indicated that the extended stern's different forms could affect the ship's resistance, trim, and heave. The reduction in resistance was seen at moderate speeds, thereby reducing steep trim angles. The greater the extended stern angle, the more significant the reduction in ship resistance at Fr 0.58 by 26%. Likewise, the combination of interceptor and extended stern experienced a decrease in resistance in the semi-displacement phase with a percentage of 33% resistance, 66% trim, and 47% heave. The interceptor stroke (d) depended on the boundary layer (h). The extended stern with angles of 10°, 20°, and 30° were found to have d/h ratios of 0.38, 0.37, and 0.34. However, it should be noted that extending the stern without interceptors and with interceptors at high speeds could result in a dangerous increase in resistance on high-speed vessel.
Dufour and Soret Influence on MHD of an Oldroyd-B Fluid over a Stretching Sheet with Nanoparticles
Authors: abdelmgid sidahmed
Published: January 2024

In this study, the heat and mass transfer characteristics of a two-dimensional incompressible Oldroyd-B fluid over a stretching sheet in the presence of Soret, Dufour, and nanoparticles are investigated. The effects of elasticity and magnetohydrodynamics on flow are being studied. The transport equations contain Brownian motion and thermophoresis. The governing partial differential equations and associated boundary conditions are dimension less using sufficient similarity variables. The resulting ordinary differential equations are solved using the successive linearization method. It has been quantitatively measured and explored how different embedded thermophysical characteristics affect fluid velocity, temperature, concentration, Nusselt number, and Sherwood number. The temperature and concentration distribution increase when the values of Du and Sr rise. As Nb estimations rise, Nusselt number estimates fall. It should be emphasized that the influence is shown to be quite modest as a retardation time is increased. A comparison of one instance of our findings with those previously published in the literature reveals a very strong agreement.
Current energy recycling technology for agricultural waste in Malaysia
Authors: Hui Ming Yow  , Amir Abdul Razak  , Adel Aboulqasim Alheemar
Published: January 2024

This article examines the production and use of biomass as a renewable energy source in Malaysia, focusing on the agricultural processing industry. Malaysia produces approximately 168 million tonnes of biomass, including palm oil waste, rice husks, coconut debris, sugar cane waste, urban waste, and forestry waste. The abundance of biomass resources provides a competitive advantage over other renewable energy sources. However, the industry faces restrictions and challenges, such as high disposal costs, high electricity consumption, and related expenses. To address these issues, it is crucial to study the types of biomass available, current technology for biomass energy production (waste-to-energy), and relevant environmental motivations, initiatives, and legislation. This paper analyses the agricultural waste available for energy generation, existing technologies for converting waste into energy, and the role of environmental policies in the agricultural processing business. Energy recycling, which involves utilizing agricultural waste to generate electricity and thermal energy, is proposed as a viable solution. Several technologies are explored, including anaerobic digestion, gasification, incineration/combustion, and pyrolysis, each with advantages and disadvantages. Thermochemical processes are highlighted for their effectiveness, requiring minimal pre-treatment, shorter reaction times, and adaptability to various biomass feedstocks and climatic conditions. The implementation of incentives, initiatives, and policies by the Malaysian government serves as guidelines for the agricultural processing industry to adopt energy recycling practices. By emphasising energy sustainability and promoting green building initiatives, the industry can contribute to a more sustainable and environmentally friendly energy landscape.
DEVELOPMENT OF DAG BLOCKCHAIN MODEL
Authors: Tokhmetov Akylbek , Lee Vyacheslav , Tanchenko Liliya
Published: January 2024

In this study the authors present an innovative approach to resolving scalability and efficiency challenges in blockchain technology through the integration of Directed Acyclic Graphs (DAGs). This approach helps to overcome the limitations of traditional blockchain systems, particularly in transaction processing. The classic blockchain has some problems as slow transaction processing and poor scalability. The authors offer Directed Acyclic Graph (DAG) as a scalable and energy-efficient alternative. The paper outlines the development of a DAG-based blockchain model, utilizing Python and Flask alongside the Ed25519 cryptographic curve. It conducts a comparative analysis of DAG with traditional consensus mechanisms like Proof of Work and Proof of Stake, underscoring the efficiency and security benefits of employment of DAG. The research methodology includes an extensive literature review and the construction of a practical model to demonstrate DAG's applicability in blockchain networks. Particularly notable is the exploration of DAG's potential in Internet of Things (IoT) ecosystems, addressing critical issues such as energy inefficiency and network communication challenges in existing consensus algorithms. The authors calculated the performance of the model and compared it with similar models on several evaluation criteria. The simulation results of our proposed model show an improvement in performance and security by minimizing end-to-end delay, time cost, energy consumption, and throughput. The model eliminates the limitations of classic blockchain systems, such as high latency and low scalability. It structures transactions and blocks as a DAG, which provides fast validation and high scalability without compromising security. The research demonstrates the transformative implications of DAG for advancing blockchain technology.
Training and Assistance in Digital Marketing Strategies for Managing SMEs Business at Melasti Beach in Ungasan Village
Authors: Eka Saputra Upayana Wiguna , Reyes Alma Pia Garcia , Riyasa Ida Ayu Putri Widiasuari , Dewi Nyoman Indah Kusuma , Wirga I Wayan
Published: January 2024

The problem faced by the MSMES group (Local Culinary) is their inability to utilize digital media to promote the culinary culture of the community in Ungasan Village, Kuta Selatan Sub-district, and Badung Regency. The purpose of this activity is to provide social media training to the MSMES group (Local Culinary) to enable them to use digital media professionally. The expected benefits are that the MSMES group (Local Culinary) will be able to increase their product sales online and expand their market share. The methodology of this activity includes providing digital marketing training and giving an understanding of all the activities that can be done by the MSMES group (Local Culinary), from creating photo and video content with captions to making content calendars and using them. Advertising through social media and email to promote their business. The results of this activity are the creation of professional product image and video content, planned content calendars, and the use of advertisements to promote their products. This activity also benefits Politeknik Negeri Bali as the implementing institution by sharing knowledge with the wider community.
Sosialisasi Hukum Pencegahan Tindak Kekerasaan dan Perilaku Bullying Pada Anak di TK ABA Samarinda
Authors: Yulianingrum Aullia Vivi , Suryaningsi Suryaningsi , Alfina Alfina , Kalsela Wanda Frisilia
Published: January 2024

Mengurangi penindasan (bullying) di sekolah merupakan perhatian utama para pendidik, orang tua, dan legislator. Kekerasan terwujud dalam berbagai cara, dan semakin banyak bukti yang menunjukkan bahwa bentuk-bentuk kekerasan tingkat rendah atau mendasar mempunyai dampak yang besar terhadap lingkungan belajar di sekolah. Pengabdian ini menggunakan metode ceramah dan pendampingan penanganan kasus secara face to face yang meliputi identifikasi kasus, sosialisasi, pemberian materi, pendampingan hukum, solusi, diskusi serta mediasi. Tujuan dari pengabdian adalah menyelesaikan sengketa antara orang tua/wali murid terhadap tindakan bullying oleh siswa penyandang pendampingan psikolog serta memberikan solusi damai antar para pihak yang mengalami konflik. Pengabdian ini menghasilkan bahwa pada kenyataannya bentuk perilaku bullying disertai kekerasan paling umum terjadi di sekolah saat ini dan jika tidak ditangani dapat menyebabkan bentuk kekerasan yang lebih serius. Oleh karena itu, aspek penting dalam pencegahan kekerasan di sekolah adalah identifikasi dan penerapan intervensi ataupun strategi yang dirancang untuk mencegah atau mengurangi intimidasi di sekolah. Strategi pencegahan intimidasi praktis yang menargetkan berbagai tingkat (yaitu, individu, ruang kelas, dan sekolah) disediakan, dan pedoman praktik terbaik untuk menerapkan program pencegahan intimidasi di sekolah dengan banyak melakukan sosialisasi hukum dan parenting.
Adição de microfibra de vidro e superplastificante para melhorar as propriedades do concreto f'c=280 kg/cm2 para pavimentos rígidos
Authors: Dávila Billy Waldir Carbajal , Oscanoa Javier Reynoso , Tamariz Aldair Enrique Sandoval , Pereda Fiorela Yselina Perez
Published: January 2024

Na pesquisa intitulada "Addition of glass microfibre and superplasticiser to improve the properties of concrete f'c=280 kg/cm2 for rigid pavements" (Adição de microfibra de vidro e superplastificante para melhorar as propriedades do concreto f'c=280 kg/cm2 para pavimentos rígidos). O objetivo principal é avaliar a incidência da adição de microfibra de vidro e superplastificante para melhorar as propriedades do concreto nas proporções de 0,70% FV + 0,85% SP, 1,20% FV + 1,15% SP, 0,70% FV + 1,15% SP e 1,20% FV + 0. 85% SP em substituição ao agregado miúdo e ao cimento, por outro lado, a metodologia utilizada para a execução do estudo foi do tipo aplicada, também foi utilizado um delineamento experimental, além disso, foi utilizado o método hipotético dedutivo de investigação, também, foram obtidos os seguintes resultados: Na resistência à compressão o concreto padrão obteve uma resistência de 323. 57 kg/cm2, enquanto os GE 1, GE 2, GE 3, GE 4 obtiveram resistência de 319,13 kg/cm2, 368,87 kg/cm2, 372,37 kg/cm2 e 353,13 kg/cm2, respectivamente; na resistência à flexão, o concreto padrão obteve resistência de 59,20 kg/cm2, enquanto os GE 1, GE 2, GE 3, GE 4 obtiveram resistência de 55,97 kg/cm2, 62,67 kg/cm2, 55,70 kg/cm2 e 62. 03 kg/cm2 respectivamente, no abatimento o concreto padrão obteve um abatimento de 3", enquanto o GE 1, GE 2, GE 3, GE 4 obtiveram um abatimento de 2 2/3", 3 2/3", 2/3" e 2 2 2/3" respectivamente e no peso unitário o concreto padrão obteve uma densidade de 2680 kg/m3, enquanto o GE 1, GE 2, GE 3, GE 4 obtiveram uma densidade de 2611 kg/m3, 2613 kg/m3, 2573 kg/m3 y 2605 kg/m3.
Cinzas de folhas de coca como substituição parcial do cimento para otimizar as propriedades do concreto f'c=420 kg/cm2
Authors: Rojas Ingrid Marylin Ccahuana , Oscanoa Javier Reynoso , Tamariz Aldair Enrique Sandoval , Pereda Fiorela Yselina Perez
Published: January 2024

A presente pesquisa intitula-se: "A cinza de folha de coca como substituição parcial do cimento para otimizar as propriedades do concreto f'c=420 kg/cm2", na qual, o objetivo do estudo é avaliar a incidência da cinza de folha de coca como substituição parcial do cimento nas propriedades do concreto; Sua metodologia é a de um estudo aplicado de nível explicativo, e seu delineamento é experimental, além de apresentar uma abordagem quantitativa, também, esta pesquisa baseou-se na avaliação da resistência à compressão e à flexão de misturas de concreto com f'c = 420 kg/cm2 pela adição de cinza de folha de coca como substituição parcial do cimento, das quais foram propostas as seguintes porcentagens 0%, 1. 5%, 2,5%, 2,5% e 3,5% e, consequentemente, foram obtidos os seguintes resultados: no teste de tensão de compressão, foram obtidos 427,73 kg/cm2, 430,50 kg/cm2, 415,70 kg/cm2 e 396,33 kg/cm2; no teste de tensão de flexão, foram obtidos 58,70 kg/cm2, 56,87 kg/cm2, 55,03 kg/cm2 e 51,50 kg/cm2; e no teste de abatimento, foram obtidos 4", 3 ⅓", 3" e 2 1/6".
Embracing the Data-Driven Paradigm: A Comprehensive Framework for Effective Teaching and Learning in Higher Education
Authors: Sepeng Percy , Moleko Matshidiso M.
Published: January 2024

The present study investigated the pragmatic implementation and efficacy of data-driven instructional approaches. The complete framework is underpinned by stated objectives, a robust data infrastructure, adaptive practises, and ongoing collaboration. The present study adopted a mixed-methods research design, incorporating qualitative interviews with both academics and students, alongside quantitative evaluations of outcomes from Learning Management Systems (LMS). The objective of this study was to examine the complex correlation between instructional practises and data analytics. This study provided evidence of the potential of data-driven methodologies to significantly enhance customised learning and inform timely pedagogical decisions. Nevertheless, the efficacy of these interventions is contingent upon comprehensive training, endorsement from relevant parties, and ongoing enhancement. This study contributes to the current scholarly discourse on the correlation between data analytics and teaching. The argument posits the importance of a strategic integration that considers both technological and human-centric considerations.

Keywords: Data-driven Pedagogy, Data Literacy, Learning Management Systems
TeV Neutrinos and Hard X-Rays from Relativistic Reconnection in the Corona of NGC 1068
Authors: Fiorillo Damiano F. G. , Petropoulou Maria , Comisso Luca , Peretti Enrico , Sironi Lorenzo
Published: January 2024

The recent discovery of astrophysical neutrinos from the Seyfert galaxy NGC 1068 suggests the presence of nonthermal protons within a compact “coronal” region close to the central black hole. The acceleration mechanism of these nonthermal protons remains elusive. We show that a large-scale magnetic reconnection layer, of the order of a few gravitational radii, may provide such a mechanism. In such a scenario, rough energy equipartition between magnetic fields, X-ray photons, and nonthermal protons is established in the reconnection region. Motivated by recent 3D particle-in-cell simulations of relativistic reconnection, we assume that the spectrum of accelerated protons is a broken power law, with the break energy being constrained by energy conservation (i.e., the energy density of accelerated protons is at most comparable to the magnetic energy density). The proton spectrum is

dn

p

/

dE

p

∝

E

p

−
1

below the break and

dn

p

/

dE

p

∝

E

p

−
s

above the break, with IceCube neutrino observations suggesting s ≃ 3. Protons above the break lose most of their energy within the reconnection layer via photohadronic collisions with the coronal X-rays, producing a neutrino signal in good agreement with the recent observations. Gamma rays injected in photohadronic collisions are cascaded to lower energies, sustaining the population of electron–positron pairs that makes the corona moderately Compton thick.
On the Source Contribution to the Galactic Diffuse Gamma Rays above 398 TeV Detected by the Tibet ASγ Experiment
Authors: Kato S. , Chen D. , Huang J. , Kawashima T. , Kawata K. , Mizuno A. , Ohnishi M. , Sako T. , Sako T. K. , Takita M. , Yokoe Y.
Published: January 2024

Potential contribution from gamma-ray sources to the Galactic diffuse gamma rays observed above 100 TeV (sub-PeV energy range) by the Tibet ASγ experiment is an important key to interpreting recent multimessenger observations. This paper reveals a surprising fact: none of the 23 Tibet ASγ diffuse gamma-ray events above 398 TeV within the Galactic latitudinal range of ∣b∣ < 10° come from the 43 sub-PeV gamma-ray sources reported in the 1LHAASO catalog, which proves that these sources are not the origins of the Tibet ASγ diffuse gamma-ray events. No positional overlap between the Tibet ASγ diffuse gamma-ray events and the sub-PeV LHAASO sources currently supports the diffusive nature of the Tibet ASγ diffuse gamma-ray events, although their potential origin in the gamma-ray sources yet unresolved in the sub-PeV energy range cannot be ruled out.
Modelling of Diffusion Process in Vacuum Drying of Propellants
Authors: Bui Thanh Phan , Dobšáková Lenka , Horák Vladimír
Published: January 2024

One crucial step in the propellant-making process that takes a lot of time and energy is drying. The study of inert propellants' vacuum drying behaviours – which mimics those of real propellants – is the main focus of this work. This study presents the development of analytical and numerical models for the vacuum drying of inert pro-pellants, which were validated through an in-house vacuum drying experiment. The calculation of effective diffusivity, a crucial parameter characterising the rate of solvent vapour transfer during the vacuum drying of inert propellant samples, is one of the outcomes of this work. It involves removing liquid solvents from the texture of a propellant. Conclusions and suggestions for technical practice are developed based on the studyʼs findings.
Species diversity and major host/substrate associations of the genus Akanthomyces (Hypocreales, Cordycipitaceae)
Authors: Wang Yao , Wang Zhi-Qin , Luo Run , Souvanhnachit Sisommay , Thanarut Chinnapan , Dao Van-Minh , Yu Hong
Published: January 2024

Akanthomyces, a group of fungi with rich morphological and ecological diversity in Cordycipitaceae (Ascomycota, Hypocreales), has a wide distribution amongst diverse habitats. By surveying arthropod-pathogenic fungi in China and Southeast Asia over the last six years, nine Akanthomyces spp. were found and identified. Five of these were shown to represent four known species and an undetermined species of Akanthomyces. Four of these were new species and they were named A. kunmingensis and A. subaraneicola from China, A. laosensis from Laos and A. pseudonoctuidarum from Thailand. The new species were described and illustrated according to the morphological characteristics and molecular data. Akanthomyces araneogenus, which was isolated from spiders from different regions in China, Thailand and Vietnam, was described as a newly-recorded species from Thailand and Vietnam. The phylogenetic positions of the nine species were evaluated, based on phylogenetic inferences according to five loci, namely, ITS, nrLSU, TEF, RPB1 and RPB2. In this study, we reviewed the research progress achieved for Akanthomyces regarding its taxonomy, species diversity, geographic distribution and major host/substrate associations. The morphological characteristics of 35 species in Akanthomyces, including four novel species and 31 known taxa, were also compared.
Well-posedness for heat conducting non-Newtonian micropolar fluid equations
Authors: Wang Changjia , Duan Yuxi
Published: January 2024

In this paper, we consider the first boundary value problem for a class of steady non-Newtonian micropolar fluid equations with heat convection in the three-dimensional smooth and bounded domain $ \Omega $. By using the fixed-point theorem and introducing a family of penalized problems, under the condition that the external force term and the vortex viscosity coefficient are appropriately small, the existence and uniqueness of strong solutions of the problem are obtained.