bluuebunny/crossref_metadata_2025 huggingface dataset:
The Difficulties of Translating English Phrasal Verbs into Arabic,”The Case of Libyan EFL Graduate Translation Students at the Libyan Academy”
Authors: A. Rafah Alzahraa , A. Elraggas Abdelsalam
Published: August 2024

Translating English phrasal verbs into Arabic represents a challenging task for Arabic EFL graduate translation students as it triggers a large number of difficulties. Consequently, this study seeks to explore the difficulties encountering Libyan EFL graduate translation students at the Libyan Academy while translating such verbs into Arabic. As research tools for collecting data, the researchers used a questionnaire, a translation test and multiple-choice questions in order to investigate  students' background knowledge of English phrasal verbs, the reasons behind the difficulties of translating these phrasal verbs into Arabic, the difficulties that they face while translating these verbs into Arabic and their possible solutions. The results revealed that the majority of the participants had no difficulties in translating English phrasal verbs into Arabic, particularly the idiomatic ones since the context mostly provided hints about their meanings. However, some students were not familiar with the two of the four used semi-idiomatic phrasal verbs and dealt with them idiomatically. Therefore, they provided irrelevant translations to the source phrasal verbs. In addition, most students committed a large number of grammatical errors in their Arabic translations. Consequently, it is recommended to include Arabic as a compulsory course for MA translation students at the Libyan Academy for Postgraduate Studies. Moreover, since these grammatical errors were committed by most of the participants, it is recommended for Arabic MA translation students who are going to write their dissertations to discuss Arabic grammatical errors and their effects in Translation.
Influence of annealing on Si-Ge thin films with high concentration of tellurium and zinc
Authors: A. Saleh Ibrahim
Published: August 2024

The elements are distinguished via the basis of energy band gap. Two configurations Si10Ge10Te80 and Si10Ge10Zn80 multilayers were annealed under vacuum at eutectic temperature of 400 °C to form alloys between the deposited layers.  The two samples were studied at different temperatures to improve the physical properties of the thin films. Kinetics of the two configurations Si10Ge10Te80 and Si10Ge10Zn80 were studied in the temperature range 308- 673 oK.  The results revealed that the crystallization of the thin film of multilayer for the samples increases with increasing the annealing temperature and increasing the zinc content. The influence of annealing on the structure and stability of the samples has been studied by X- ray diffraction.  The optical and electrical measurements were carried out after annealing. The electrical conductivity of the two samples was measured as a function of temperature and annealing time. It was found that the electrical conductivity for Si10Ge10Zn80 increases, and the optical gap decrease due to the crystallization effects that occurs only in Ge matrix and with increasing zinc content at high concentration.
Analyzing English Speaking Proficiency and Challenges Among ESL Students in Libya: A Quantitative Survey Study
Authors: A.I.Hamad Hakim , Saad Mohammad , Saed Fadal
Published: August 2024

The aim of this study is to analyze the English speaking proficiency and challenges faced by students studying English as a second language in Libya. The study focuses on demographics, duration of study, self-assessed proficiency, challenges encountered in speaking English, and methods used for improvement. Survey data from 43 students were collected using both closed-ended and open-ended questions. Descriptive statistics and thematic analysis were employed to interpret the findings. Results indicate that the majority of students are females under 25 years old, with intermediate English proficiency being most common. Challenges such as lack of vocabulary, fear of making mistakes, and difficulty understanding native speakers contribute to communication difficulties and anxiety. Common practice methods include watching English movies/TV shows and using online tutorials/videos. The study underscores the need for structured speaking practice and supportive environments to enhance English proficiency among students in Libya.
Tachinus of Japan (Coleoptera: Staphylinidae: Tachyporinae): new records, a new synonym, and a new species
Authors: Hashizume Takuto , SCHÜLKE Michael , Maruyama Munetoshi
Published: August 2024

A total of 23 species of the genus Tachinus Gravenhorst, 1802 (Coleoptera: Staphylinidae: Tachyporinae) in Japan are identified from collections around the world. They are listed with detailed collecting data. Tachinus (Tachinus) dujieae sp. nov. is described from Japan: Honshu: Nagano Prefecture, illustrated, and compared with its relative, T. (Tachinus) rishirianus Watanabe & Shibata, 1965. Tachinus (Tachinoderus) aokii Hayashi & Yoshida, 2016 is synonymized with T. (Tachinoderus) diminutus Sharp, 1888. Tachinus (Tachinus) kabakovi Veselova, 1990 is recorded from Japan for the first time from. We also record some species from islands where they were previously unrecorded for the first time: T. (Tachinoderus) kobensis Cameron, 1933 from Hokkaido, Izu-shotô, and Gotô-rettô, T. (Tachinoderus) yamato (Hayashi, 2003) from Shikoku and Kyushu, T. (Tachinus) bidens Sharp, 1888 from Rishiri-tô, and T. (Tachinus) nakanei Ullrich, 1975 from Tsushima.
A new species of ant-attended Balcanocerus from Bulgaria (Hemiptera: Cicadellidae: Eurymelinae)
Authors: Gjonov Ilia
Published: August 2024

A new ant-attended species, Balcanocerus agapetomyrmices sp. nov. (Hemiptera: Cicadellidae: Eurymelinae), is described from Bulgaria. The only known host plant is Pyrus amygdaliformis Villars, 1807 (Rosaceae). Both the adults and the nymphs often form small aggregations of 4–6 individuals that are frequently visited by Lasius bombycina Seifert & Galkowski, 2016 (Hymenoptera: Formicidae) that feed on the excreted honeydew. The new species is close to B. balcanicus (Horváth, 1903), but differs in colouration, and male and female genitalia. A short overview of all Balcanocerus species with comments on their distribution and host plants and a key to the European species are provided.
The genus Pteremis (Diptera: Sphaeroceridae) in the West Palaearctic area, with description of four new species
Authors: ROHÁČEK Jindřich
Published: August 2024

are revised, including the type species of the genus and its synonyms. A total of six species are recognized, four of them new – Pteremis fenestralis (Fallén, 1820) (type species, wing polymorphic), P. apterina sp. nov. (apterous, Portugal: Azores), P. canaria (Papp, 1977), P. ferreus sp. nov. (Spain: Canary Is.: El Hierro I.), P. pulliceps sp. nov. (Portugal: Madeira) and P. tenebricus sp. nov. (Spain, male only). In addition, Paraspelobia vlasovi (Duda, 1938) from Turkmenistan is re-examined and transferred to the genus Pteremis as Pteremis vlasovi (Duda, 1938), comb. nov., and the genus Paraspelobia Duda, 1938, syn. nov., is synonymized with Pteremis. All these species are described or redescribed in detail including illustrations of their male and female terminalia. Lectotypes of Borborus nivalis Haliday, 1833 and Pteremis subapterus Frey, 1947 (both being brachypterous forms of P. fenestralis) are designated. The genus Pteremis is newly taxonomically delimited, redefined and redescribed, with discussion of its relationships. A new key to West Palaearctic species of Pteremis is constructed and their relationships, biology and distribution are discussed.
Morphology of mature larva, bionomics and life cycle of Attalus (Attalus) elongatulus (Coleoptera: Malachiidae)
Authors: Asano Makoto , Yasuda Kohei , Yoshitomi Hiroyuki
Published: August 2024

The morphological structure of mature larvae of Attalus (Attalus) elongatulus
Lewis, 1895 as well as its bionomics and life cycle are described for the first time. In the family Malachiidae, an univoltine life cycle is newly disclosed, and the sclerites on the larval abdominal tergites are discovered for the first time in this study. The microhabitat of
A. elongatulus remains insufficiently explored, although the adults were found on the plants of cliff-lined coasts such as Pittosporaceae and Lauraceae. Two overwintering mature larvae were found on the rocks on the seashore. It is suggested that this species locally inhabits the warm microclimatic zones with a rich flora along cliff-lined coasts dispersed within the temperate zone of Japan.
Pygolampis amamiko (Hemiptera: Heteroptera: Reduviidae), a new assassin bug species from the Amami Islands, Japan
Authors: Okuda Kyosuke , Yoshikawa Akahiro , Ishikawa Tadashi
Published: August 2024

A new species of the assassin bug of the genus Pygolampis Germar, 1817 (Hemi-
ptera: Heteroptera: Reduviidae: Stenopodainae), P. amamiko sp. nov., collected from the Amami Islands, Japan, is described and its morphological characters, including the genital structures, are illustrated. A key to the Japanese species of the genus is provided.
THE USE OF CRYOTHERAPY AND HEAT IN THE RECOVERY OF TENDON INJURIES IN RUNNING ATHLETES AUTHORED
Authors:   Ministry of Education, Najaf Governorate Education, Iraq, Jabbar Ayed Wahid
Published: August 2024

Tendon injuries are a common problem among running athletes, as they can disrupt their sports activities and reduce their physical performance. Tendons play a vital role in movement by connecting muscles to bones, so any injury to them can be painful and require a long period of treatment and rehabilitation. Effective recovery from these injuries depends on appropriate medical intervention and appropriate therapeutic techniques, among which are heat treatments, specifically cryotherapy, and heat therapy. Cryotherapy and thermotherapy are two methods widely used to treat sports injuries. Cryotherapy reduces inflammation and pain in the early stages of injury by constricting blood vessels and reducing blood flow to the affected area.
REGIONAL STRATEGIC BALANCE AND IRANIAN POLITICAL IMPACT ON IRAQI NATIONAL SECURITY SINCE 2003
Authors:   Lect., Technical Institute, Najaf, Iraq, Jassim Ibtisam Kadhim
Published: August 2024

After 2003, the region adjacent to Iraq entered a new case that differed from its previous era. The occupation of Iraq in 2003 and the waging of war against it created a unique situation in the Middle East and the regional surrounding Iraq. The balances that prevailed were disturbed, and all the relations of the active powers entered from within the region. With a kind of chaos and instability, those countries were not able to predict the outcome of matters or their developments, which led to creating a state of anticipation and confusion and waiting for the situation in the region and the decided results and repercussions of the war on Iraq and the occupation.
Pengaruh Cashless Society dan Literasi Keuangan terhadap Perilaku Konsumtif Gen Z di Kota Padang
Authors: Rahmatika  , Ariani Fatma , Susanti Rini
Published: August 2024

The purpose of this quantitative research is to understand how the cashless society that has emerged in recent years and financial literacy influence the consumptive behavior of generation z, especially in Padang, West Sumatra. The population chosen was generation z students from Universitas Putra Indonesia YPTK Padang and Politeknik Negeri Padang with a total of 178 respondents. This research applies descriptive statistical analysis techniques through classical assumption tests, multiple linear regression, coefficient of determination, and hypothesis testing. Based on the results of the study, it can be seen that cashless society and financial literacy, both partially and simultaneously, are able to influence the consumptive behavior of generation z.
The Influence of Promotion and Perceived Trust on Purchase Intention in Beauty Product E-Commerce
Authors: Thamanda Dhea Rusli , Mariam Siti , Ramli Abdul Haeba
Published: August 2024

This study is a quantitative study to determine the direct influence between promotion, attitude, perception of trust, perception of ease of use, perception of usefulness on purchase intention on Sociolla e-commerce. Data collection in this study was conducted through a survey with a questionnaire in the form of a google form. The population in this study were Sociolla e-commerce consumers who live in the province of DKI Jakarta, have made transactions more than twice and are 17 years of age and over. The questionnaires collected amounted to 135 respondents using the formula (Hair et al., 2020). Sampling used a purposive sampling technique, then the data was processed using a multiple regression analysis method. Based on the results of the study, from the 5 hypotheses accepted, namely promotion has a positive effect on purchase intention, attitude has a positive effect on purchase intention, perception of trust has a positive effect on purchase intention, perception of ease of use has a positive effect on purchase intention, perception of benefits does not have a positive effect on purchase intention. The results of this study are expected to provide input for beauty product e-commerce to better understand customer needs and continue to develop better digital sales strategies to help consumers in their shopping activities.
Keywords: Promotion, Attitude, Perceived Trust, Perceived Ease of Use, Perceived Usefulness, Purchase Intention.
Perception of Undergraduates on Government Interventions in Environmental Issues in Southwest, Nigeria
Authors: Akinlade B. K
Published: August 2024

This study examined the perception of undergraduates on government interventions in environmental issues in Southwest, Nigeria. This study further examined the differences in the perception of undergraduates on government interventions in environmental issues in Southwest, Nigeria based on gender and ownership of University. Descriptive survey research design was adopted for the study. The population of the study comprised all university undergraduates in Southwest, Nigeria. A sample of 1752 male and female Undergraduates in Federal, State and Private Universities were used for the study. Multistage sampling procedure was employed for the sample selection. Questionnaire on Perception of Undergraduates on Government Interventions in Environmental Issues {QPUGIEI) was used in this study. The validity of the instrument was ensured through face and content validity procedures and the reliability of the QPUGIEI was established using Cronbach Alpha method and the alpha value of 0.74 was obtained. The data generated for this study were analysed using descriptive and inferential statistics. The descriptive statistics of frequency counts, mean and percentages were used to provide answers to the research question while inferential statistics of t-test and Analysis of Variance (ANOVA) were used to test the hypotheses at 0.05 level of significance. The finding of the study showed that university undergraduates had favourable perception of government interventions in environmental issues in Southwest, Nigeria, there was a significant difference in the perception of male and female undergraduates towards government interventions in environmental issues, there was a significant difference in the perception of undergraduates towards government interventions in environmental issues based on the ownership of University. Based on the findings of this study, it was recommended that irrespective of the gender of undergraduates and ownership of the university government should intensify effort on environmental education programmes such that all undergraduates will have same favourable perception on government interventions in environmental issues.
Assessing The Effectiveness of Risk Management and Mitigation Strategies Employed by Oil Companies in Bonny and Ogba/Egbema/Ndoni Local Government Area of Rivers State, Nigeria
Authors: Sule Obaje Philip , Ovwromoh Stephen Emuejevoke
Published: August 2024

This study assessed the emergency and risk drivers in oil exploration activities in Bonny Local Government Area, Rivers State, Nigeria. The descriptive research survey design was adopted for the study. Five research questions were raised to guide the study. The data for the study were collected using a five-point likert scale questionnaire containing a total of 25-items and utilized as a major instrument for the study. In all, three hundred and sixty (360) respondents made up the sample for the study. Arithmetic mean and standard deviation were the major statistical tools used for the data analysis. The results of the study reveal that the risk management and mitigation strategies employed by the oil companies in the study areas are grossly ineffective. Findings of the study also revealed that putting in place a comprehensive scientific rehabilitating programme for the people, diversification of sources of income, adequate compensation for people affected by oil spill, government and other stakeholders in the oil industry provision of grants and soft loan to affected persons and the adoption of long distance farming and fishing are potentials for alternative livelihood for the people. Finally, findings of the study showed that strict adherence to regulations and safety procedures, routine inspections and maintenance of oil equipment and infrastructures, comprehensive training and education, emergency preparedness by oil companies and the use of advanced technology are possible recommendations that could improve the safety and risks reduction strategies in oil explorations. Based on the above findings, the study recommended among other things, that oil exploration should be operated within stringent regulations designed to safeguard the welfare of employees, the environment, and nearby communities, oil companies operating in the areas should ensure regular monitoring and maintenance of their equipment and facilities so as to reduce the occurrence of pollution due to faulty oil and gas facilities, that oil companies should formulate and practice clearly defined emergency response strategies to manage potential incidents like oil spills or fires effectively. Lastly, conduct routine drills to ensure all staff are adept at promptly and efficiently executing these plans.
Influence of the Economic Status of Families on the Academic Achievement of Junior Secondary Students in English in Umuahia South Local Government Area of Abia State, Nigeria
Authors: Ngwoke Raphael Iroabuchi , Obeka Ngozi Ohakamike , Okonkwo Adaobi Fidelia , Chukwu Chukwuma Ogbonnaya
Published: August 2024

The study focused on Influence of the Economic Status of Families on the Academic Achievement of Junior Secondary Students in English in Umuahia South Local Government Area of Abia State, Nigeria. Descriptive survey was used to study a population of 9,550 families. A sample size of 350 parents was selected for the study through simple random sampling technique. The instrument for data collection was a structured questionnaire entitled “Influence of Family Economy on Students’ Academic Achievement (IFESAA). Instrument for data analysis were mean and standard deviation. Findings revealed that family economic status and polygamy influenced students’ academic achievement between the year 2018 and 2022 in Umuahia South Local Government Area of Abia State. Based on the findings, it was recommended that the voting populace should be properly educated on their voting rights, and the need to use their voting power to install governments that would pay attention to education which is one of the commonest social services any government can give to her citizens; and that the Abia State Orientation Agency should be properly positioned to carry out grass root orientation on the negative economic impact of breeding too many children than one can maintain.
Sociological reading of the impact of nepotistic tribalism on political and socio-economic sustainable development in Africa
Authors: Munyangeyo Théophile
Published: August 2024

This study examines the portrayal of the manifestation and impact of nepotistic tribalism on political and socio-economic sustainable development in Africa. It is argued that tribal affiliation is an enriching cultural identity when it does not infringe on rights and liberties. However, colonial powers historically exploited tribal divisions to maintain control, resulting in weakened institutions in post-independent African nations. This exploitation fostered favouritism, corruption, and lack of accountability. In contexts of scarce resources, tribalism drives nepotistic solidarity through political allegiances based on tribal identities. The resulting divisive politics undermine equal access limited opportunities. Through a sociological reading of social structures and power, aligned with postcolonial theory, anthropological theories of identity and culture, political economy and development theories, and critical discourse analysis, the study analyses the complex portrayal of tribalism in Francophone African narratives. It concludes that nepotistic tribalism is a major hindrance to the sustainable development and requires a reimagining.
The Contributory Pension Scheme in Delta State: Understanding The Failures of Government and The Challenges of the Pension Administrators
Authors: Ekezue Henry Maduabuchuku , Okereka Onofere Princewill , Mukoro Akpomuvire
Published: August 2024

The study examined the contributory pension scheme in Delta State, with a focus on understanding the failure of government and the challenges of the Pension Administrators. The study adopted the historical methods involving a critical analysis of secondary data. The findings revealed amongst other things that compliance with the provisions of the law has been more in breach than in practice for the MDAs in Delta State. This breach is however not limited to Delta State alone but to other states in the country including the Federal government. In particular, it was discovered that only twelve (12) states had migrated to the contributory pension scheme. This represents 33.3% of the population. This record is abysmal given the huge mess the pension system had been enmeshed before the emergence of the contributory pension. It was also observed that most most MDA’s in Delta state and private sector tiers did not procure life insurance covers for workers in accordance with provisions of the law. For other states of the federation, It was revealed that only four (4) states, from among those that have passed the pension law, secured life insurance policies for its workers. It could be argued that part of the reasons for poor compliance records in Delta State and at the Federal and State tiers of the pension market could not be unconnected with the recession that hit the nation, beginning in 2016. This arguably affected the revenue profile of both the national and sub-national governments, given its dependence on oil revenue. As revenue dwindled, salaries were not paid and so contributions to RSAs were not made. Based on these findings, it is recommended that in order to reverse the current dismal compliance record, actions are required at three levels, namely, individual, labour and regulatory. Individual worker should monitor the state of his RSA by demanding and receiving monthly statement of accounts as provided for by the law. This will help him identify early failure signals to remit contributions. Second, leadership of workers union should engage employers on the need for regular remittance of contributions and procurement of appropriate insurance covers. This is with a view to ensuring that the future financial security of its members is guaranteed. Since insurance cover is an annual contract, it is proper for labour leadership to monitor the renewal status of insurance policies for its members. Finally, the pension regulator should not only closely monitor compliance but must push for a review of the penalty for default in remittance. A penalty provision that will make compliance more compelling is here recommended.
Analysing the Policy and Governance of the Government of National Unity in South Africa by Assessing the Ministerial Expediency Concerning Educational Credentials and Experience: Drawing Insights from Global Comparative Perspectives
Authors: Matebese Hlalele
Published: August 2024

This paper explores the policy and governance of the Government of National Unity (GNU) in South Africa, particularly concerning education qualification and experience prerequisites for ministerial positions. The study examines the influence of ministerial backgrounds on policy outcomes and the efficacy of governance by conducting an extensive literature review employing qualitative research methods. The research also outlines a conceptual framework and strategic directives for the GNU, arguing that appointments to key government positions should be merit-based, across party lines, and regarding the nation’s best interests. This paper advocates that education and experience play a vital role in improving the abilities of ministers in policymaking and governance. It recommends reassessing the current practices of ministerial appointments in South Africa and considering the importance of hiring politically untainted technocrats to fill competency voids. This research contributes to the current literature on efficient governance in transitional democracies. Moreover, it offers practical strategies for enhancing the performance excellence of ministers and policies within the South African GNU.
Pengaruh Perbedaan Ukuran dan Massa Adsorben Pelepah Sawit Teraktivasi dalam Pemurnian Minyak Jelantah Menggunakan Metode Shaker
Authors: Fithry Dwi Annisa , Bode Haryanto  , Naia Salsa Billah  , Astrina Hutabarat  , Hidayat Prayogo
Published: August 2024

Used oil more commonly referred to as used cooking oil is household waste that contains carcinogenic compounds which are very dangerous if consumed by the human, so that it does not become waste in the community can be used as raw material for making biodiesel. Used cooking oil processing can be done with the use of adsorbents so that used cooking oil becomes clear and its quality can be maintained. Palm Oil has the potential to be used as carbon which functions as an Adsorbent in the refining of used cooking oil. In this study, palm fronds were carbonized using pyrolysis with a temperature of 3500C then mashed and sifted with mesh sizes of 50, 70, and 100 mesh. Followed by the activation process using 0.1 M sulfuric acid solution (H2SO4) for 3 hours and then dried using an oven. The results of the study showed that the best turbidity was an adsorbent measuring 100 mesh with a mass of 4.5 grams, the final turbidity obtained with a value of 15.9 NTU with a total turbidity reduction of 108.6 NTU.
Perancangan Alat Pembersihan Isi Usus Ayam pada Pembuatan Keripik Usus di UKM Bu Ayu Jombang
Authors: Kusuma Dimas Fajar , Satoto Handy Febri
Published: August 2024

The UKM Keripik Usus Bu Ayu is a chicken intestine chip production industry located in Sambirejo Village, Jombang. The production output of chicken intestine chips ranges from 50 to 100 kg per day. Due to the limited manpower for cleaning chicken intestines, the process takes a long time, affecting production efficiency. It takes 30 to 45 minutes to clean one kilogram of chicken intestines. Anthropometric calculations are conducted to determine the dimensions of tools that will be designed to work more ergonomically and reduce fatigue. Anthropometric data measurements at UKM Keripik Usus Ibu Ayu involve 10 workers. To fulfill the needs of anthropometric data analysis, direct measurements are carried out to obtain data that will serve as the basis for determining the dimensions of the ergonomic chicken intestine cutter tool. Body dimensions such as Standing Elbow Height (TSB) and Hand Reach (JT) are used in designing the ergonomic chicken intestine cleaning tool. Two-dimensional anthropometric measurement data is adjusted to the 50th and 5th percentiles as required for tool dimensions to facilitate employee operations. The process of cleaning chicken intestines with a single-phase electric motor dynamo system at Bu Ayu's chicken intestine chip SME enables rapid and efficient processing of chicken intestine contents. The new chicken intestine cleaning machine system equipped with rollers reduces fatigue and increases time efficiency by 70.17% compared to manual cleaning.
Monitoring Arus dan Temperature Discharge Kompresor Berbasis IoT (Internet of Things) untuk Kebutuhan Preventive Maintenance di PT. Mekar Armada Jaya
Authors: Damar Romansdani  , Pudin Apip , Budi Mursanto Wahyu
Published: August 2024

Preventive maintenance monitoring of current and compressor discharge temperature is essential to prevent damage to the machine and to assess the performance of each component. It helps to determine whether they are working properly or not. It also improves safety and reduces the risk of production downtime. The study focuses on developing and testing an IoT-based preventive maintenance monitoring system at PT. Mekar Armada Jaya. The system uses a thermocouple type K sensor for temperature discharge monitoring, a PZEM-004T module for current parameter readings, and a relay to interrupt the power flow in case of overheating. In addition, an ESP-8266 device processes the data from the sensors and displays it via the Blynk interface. The average measurement difference percentages for the current test on the resistor bank were as follows Phase R = 0.10%, Phase S = 0.40%, and Phase T = 0.67%. When testing the thermocouple type K sensors for hot water temperatures, the average percentages of reading measurement difference is 0.2% with an average difference of 0.08°C. The overheat relay test performed well, interrupting system flow when the reading reached 105°C.
REVIEW ARTICLE: NANOHERBAL AS A NATURAL SOLUTION FOR BACTERIAL DIARRHEA PROBLEMS
Authors: Embas Saraswati Dewa Ayu , Jafar Garnadi , Sulaiman Agus , Mulyani Yani
Published: August 2024

Diarrhea is a global health problem that is often caused by bacterial infections, including Escherichia coli and Staphylococcus aureus. The use of conventional antibiotics in treating diarrhea often faces challenges, such as drug resistance and adverse side effects. As an alternative, current research interest is focused on the use of nanoparticles from herbal ingredients as potential antibacterial agents in the treatment of diarrhea. This review article aims to present the latest developments in the use of herbal nanoparticles as an anti-bacterial therapy for diarrhea. The literature search method was carried out via PubMed, Science Direct, and Google Scholar using relevant keywords. Selected articles must meet inclusion criteria, such as originality, language, period, and availability of full text. After the selection process, articles that meet the criteria will be reviewed to identify findings related to the use of herbal nanoparticles in treating diarrhea. Data analysis was conducted to compare the findings of each article and draw appropriate conclusions. Therefore, this review article aims to provide a comprehensive understanding of the potential use of nanoparticles from herbal ingredients as an effective and safe solution to treat diarrhea problems, while also highlighting interesting research possibilities to be carried out in the future. effectiveness and bioavailability in the treatment of diarrhea. By increasing absorption and penetration into bacterial cells, this therapy can serve as an effective and sustainable antibacterial agent ...
PENERAPAN MODEL PEMBELAJARAN TEAM GAMES TOURNAMNET UNTUK MENINGKATKAN KEAKTIFAN SISWA PADA MATERI DHCP SERVER
Authors: Palada Sri Widya , Mulyanto Arip , Rohandi Manda , Kadim Ahmad Azhar
Published: August 2024

Pada saat proses pembelajaran administrasi sistem jaringan khususnya materi DHCP Server siswa kurang aktif dalam proses belajar mengajar, sebagian besar disebabkan  siswa kurang mengerti tentang materi sehingga membuat siswa takut untuk bertanya ataupun memberikan pendapat.Tujuan penelitian ini adalah menerapkan model pembelajaran team games tournament untuk meningkatkan keaktifan siswa pada mata pelajaran Administrasi Sistem Jaringan di kelas XI TKJ.B. Metode penelitian yang digunakan adalah PTK (Penelitian Tindakan Kelas). Penelitian ini di laksanakan di SMK Negeri 1 Suwawa dengan subjek penelitian kelas XI TKJ.B. Hasil penelitian meningkatnya keaktifan siswa dapat dilihat dari tiap siklus yang dilaksanakan, siklus 1 memperoleh presentase sebesar 53,7% dan siklus 2 memperoleh presentase sebesar 85,5%. Dari hasil penelitian ini dapat disimpulkan bahwa model pembelajaran Team Games tournament dapat meningkatkan keaktifan siswa pada mata pelajaran Administrasi Sistem Jaringan di SMK Negeri 1 Suwawa khususnya kelas XI TKJ.B.
Pengembangan Media Pembelajaran Berbasis Multimedia Interaktif Pada Materi Keragaman Komunikasi Di SMKN 2 Limboto
Authors: Putri Muthiah , Latief Mukhlisulfatih , Yassin Rochmad Mohammad Thohir , Muthia Muthia
Published: August 2024

Berdasarkan observasi awal di kelas XI TKJ di SMKN 2 Limboto pada mata materi Keragaman Komunikasi belum memenuhi standar KKM yaitu 80. Jumlah siswa di kelas XI TKJ yaitu 29 orang siswa, dari 29 siswa tersebut, terdapat 10 isiswa (34,4%) yang mencapai ketuntasan dan 19 siswa (65,5%) lainnya belum mencapai ketuntasan. Rendahnya hasil belajar siswa pada mata materi Keragaman Komunikasi di SMKN 2 Limboto biasanya mengingat fakta bahawa banyak materi Keragaman Komunikasi yang dinamis sehingga siswa memerlukan presepsi untuk mendapatkan kejelasan tentang materi yang mereka amati. Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis multimedia interaktif pada materi Keragaman Komunikasi serta mengukur kelayakan juga kepraktisan media pembelajaran yang dikembangkan. Metode penelitian yang digunakan adalah metode penelitian pengembangan (Research and Development) menggunakan model Borg and Gall. Sebelum di uji cobakan pada pengguna (siswa), media pembelajaran telah di validasi oleh ahli media dan juga ahli materi. Teknik pengumpulan data yang digunakan peneliti dalam penelitian untuk mendapatkan data para ahli media, ahli materi dan siswa terhadap penggunaan media pembelajaran menggunakan angket. Hasil penelitian : (1) validasi ahli media tahap 1 mendapatkan skor 90 (94,7%), dan validasi ahli media tahap 2 mendapatkan skor 93 (97,8%), (2) hasil validasi ahli materi tahap 1 mendapatkan skor 101 (84,1%), dan validasi ahli materi tahap 2 mendapatkan skor 120 (97,5%). Setelah melakukan serangkaian validasi ahli media dan ahli materi kemudian media pembelajaran di uji cobakan kepada penggguna. Hasil dari uji coba media pembelajaran multimedia interaktif di kelas XI TKJ SMKN 2 Limboto memperoleh skor 1692 (89,76%). Dapat disimpulkan media pembelajaran layak digunakan sebagai alternatif guru ketika mengajarkan materi Keragaman Komunikasi.Kata kunci: Multimedia Interaktif, Kelayakan, Keragaman Komunikasi.
Perancangan Prototype Sistem Presensi Berbasis Mikrokontroler WEMOS di SMA Negeri 1 Paguat
Authors: Djanun Soeharyono , Lahinta Agus , Bouty Abd. Aziz , Pakaja Jemmy , A Hermila
Published: August 2024

Penelitian ini bertujuan untuk mengembangkan sistem presensi berbasis mikrokontroler untuk memudahkan monitoring siswa SMA Negeri 1 Paguat. Peneltian ini termasuk jenis penelitian pengembangan, metode pengembangan yang digunakan adalah waterfall. Proses pengambilan data dan penelitian skripsi ini dilakukan dalam kurun April hingga Juli 2022. Teknik pengambilan data skripsi dilakukan secara verbatim dan wawancara kualitatif kepada narasumber terkait masalah kedisiplinan siswa. Prototype sistem presensi berbasis mikrokontroler yang menggunakan fitur RFID dan face recognition berhasil dibuat dengan dan telah melalui uji coba dengan hasil yang mana RFID dapat menerima data dan mengirimkannya ke server dan juga smsgateway kepada orang tua juga bisa mengirimkan laporan, tetapi tidak untuk face recognition yang masih mengalami kendala dalam pengolahan data gambar. Alat yang dibuat juga berhasil untuk mencatat kehadiran siswa berdasarkan ID tag dengan mencatat waktu kedatangan serta menit terlambat dan kepulangan siswa meskipun hanya menggunakan RFID.
Pengembangan Media Pembelajaran berbasis Gaya Belajar pada Mata Pelajaran Produktif kelas x Multimedia di SMK Negeri 1 Kaidipang
Authors: Usup Rima Melati , Amali Lanto Ningrayati , Rohandi Manda
Published: August 2024

Berdasarkan observasi awal yang dilaksanakan di SMK Negeri 1 Kaidipang ditemukan beberapa masalah yaitu dalam proses belajar siswa tidak dapat menyerap atau memahami materi yang diberikan oleh guru dengan baik pada mata pelajaran Produktif di kelas X Multimedia yang menjadi penyebab berkurangnya minat belajar siswa. Hal ini disebabkan oleh proses pembelajaran yang masih bersifat konvensional serta guru sangat jarang menggunakan media pembelajaran. Selain itu, guru juga tidak mengetahui gaya belajar dari siswanya sehingga proses belajar mengajar lebih terasa membosankan. Metode penelitian yang digunakan yaitu RD dengan model ADDIE yang terdiri dari 5 tahapan diantaranya analisis (Analysis), Perancangan (Design), Pengembangan (Development), Implementasi (Implementation), dan Evaluasi (Evaluation). Pada Analisis gaya belajar siswa menggunakan model gaya belajar felder silverman. Hasil analisis gaya belajar siswa terdapat 6 macam gaya belajar yang ada di kelas X Multimedia yaitu (1) Aktif, Sensorik, Verbal, Global, (2) Aktif, Intuitif, verbal, sekuensial, (3) Aktif, Intuitif, verbal, global, (4) Aktif, sensorik, visual, global, (5) Reflektif, Sensorik, visual, sekuensial, (6) Reflektif, sensorik, verbal, global. Dengan gaya belajar dominan yaitu Aktif, Sensorik, Verbal, Global. Hasil uji Kalayakan media pada kategori uji validitas oleh ahli media mendapatkan skor 91% yang termasuk ke dalam kategori “sangat layak” dan pada ahli materi mendapatkan skor 93% dengan kategori “sangat layak”. Selanjutnya hasil uji kalayakan media pada kategori kepraktisan mendapatkan skor 94% yang termasuk kedalam kategori “sangat layak”. Uji kelayakan terakhir yaitu kategori kefektifan yang diperoleh dari nilai pretest – posttest siswa pada analisis uji t menunjukan nilai signifikansi 2 – tailed 0,000 0,05 yang berarti bahwa terdapat pengaruh yang signifikan dalam penerapan media pembelajaran berbasis gaya belajar. Hal tersebut juga di perkuat oleh skor rata – rata N-Gain dari hasil pretest dan posttest yaitu 0,7. Nilai tersebut menandakan bahwa N – Gain  berada di posisi “Sedang” yakni rentang nilai 0.3 0.7.
Mixed Amine Absorbent based on Hollow Fiber Membrane Contactor Removes CO2 from Flue Gas
Authors: Abdullah Maysoon Anwar
Published: August 2024

The application of membrane gas absorption for the synthesis of carbon dioxide from exhaust gases is specifically explored in connection to the combined supply of heat and carbon dioxide to greenhouses. Novel absorption liquids perform better than monoethanolamine when used with easily available, reasonably priced polyolefin membranes from the market in terms of system stability and mass transfer. In this paper, the PTFE (Polytetrafluoroethylene) hollow fiber membrane contactor was decarbonized by three mixed amine absorbents, MDEA-PG, MDEA-PZ, and MDEA-MEA, focusing on optimizing the CO2 removal process. The order of CO2 membrane absorption performance of amine absorbent is MDEA-MEA> MDEA-PG> MDEA-PZ. The reasonable mass concentration range of the mixed amine absorption liquid is 30% to 35%. In addition, MEA, MDEA-PG, and MDEA-PZ have the highest CO2 removal rate when the solute ratio is 1:0.6, which are 43.15%, 32.36%, and 30.55%, respectively. These results indicate significant enhancements in CO2 capture compared to traditional single-amine solutions.
Application of Machine Learning to Forecast Solar Photovoltaic Output Power
Authors: Bakht Muhammad Paend , Haji Mohd Mohd Norzali , Sheikh Usman Ullah , Khan Nuzhat , Gul Mehr
Published: August 2024

Due to the intermittent behaviour of the sun, accurate prediction of solar photovoltaic (PV) power is crucial for efficient and reliable operation of solar power plants. This paper presents state of the art approach for PV panels power prediction using machine learning (ML) method. Two ML models, namely Random Forest (RF) and Support Vector Machine (SVM) are trained and tested using input data of solar irradiance, ambient temperature, wind speed, humidity, precipitation and PV output power. The case study is presented for the grid tied PV system installed at University Tun Hussein Onn campus Batu Pahat Malaysia. The results indicated regression predictions reasonably fit the actual data, proving good potential of ML for PV power prediction. Besides, the predictive performance of RF and SVM was compared based on three evaluation metrics: coefficient of determination (R2), root mean squared error (RMSE) and mean absolute error (MAE). Both ML models showed comparable predictive power with RF performing slightly better than SVM. The R2 value for RF was 0.850 compared to 0.832 for SVM, indicating that RF was able to explain more of the variability in the data. Additionally, RF had lower values for both RMSE and MAE, indicating that it was better able to predict values of the solar PV power output. The conclusion from this study imparts the importance of ML methods to predict PV power which could be useful for optimizing the efficiency and reliability of solar energy systems.
A Numerical Investigation on Boundary Layer Flow of MHD Tangent Hyperbolic Fluid Flow over a Stretching Sheet with Slip Boundary Conditions
Authors: Reddy Banda Narsimha , Dodda Ramya , Reddy Borra Shashidar
Published: August 2024

This investigation addresses the flow of hyperbolic tangential magnetohydrodynamic (MHD) fluids across a stretching sheet, discussing its thermophysical properties and observing the boundary conditions for velocity and thermal slip. The mathematical model converts coupled non-linear PDEs to ordinary differential equations with the aid of local similarity variables. In order to fix the derived ordinary differential equations, the Keller box method is utilized. This paper summarizes quantitative and qualitative effects of various flow regulating parameters which modify concentrations, temperatures, and velocities. In addition, the behavior near the stretched sheet is examined by computing the wall friction factor and the local Nusselt number. Both computational and conceptual computations of the wall friction factor and local Nusselt number are compared, and the findings show a strong agreement, giving credibility to the numerical results.
The Enhancement of Performance Coefficient by Spraying Water on the Condenser of the Compression Cooling Cycle
Authors: Zaidan Maki Haj , Alkumait Aadel Abdul Razzaq , Abdullah Ahmed Qays , Ibrahim Thamir Khalil
Published: August 2024

During hot and dry summer months in hot regions or deserts, compression refrigeration cycles that utilize modern, environmentally friendly refrigerants operate at high gas pressures, particularly when the ambient temperature exceeds 40°C. These systems will consume more energy in the summer, leading to a lower coefficient of performance (COP) compared to cooling systems that do not utilize this type of refrigerant gas. In this study, both theoretical and experimental analyses were undertaken to explore an effective solution for enhancing the performance of the cooling system. This involved reducing the air temperature before it enters the compression cooling cycle condenser by passing it through a water spray. The process of water evaporation absorbs the latent heat of evaporation from the air, consequently lowering its temperature. The air temperature drops by about 10 degrees Celsius below the ambient temperature before it enters the compression cooling condenser. This improvement increases the compression cooling capacity of the cycle by up to 19% and boosts the coefficient of performance (COP) by 18%. The proposed method of spraying water on the air inlet of the compression cooling cycle condenser improves its performance and increases its cooling capacity.
Model of Selectivity of Membrane Processes and Dissolution of Impurities in a Membrane Pore in a Medium with Surface-Active Micelles
Authors: Satayev Marat , Azimov Abdugani , Brener Arnold , Alekseeva Nina , Shakiryanova Zulfia
Published: August 2024

It is shown that concentration polarization affects the size of the Knudsen layer and the mechanism of mass transfer in the Knudsen layer is established. Based on the analysis of the selectivity patterns of ultrafiltration membranes, an equation was obtained for calculating the total probability of particle drift through the boundary diffusion layer and penetration into the Knudsen layer region and an equation for calculating the diffusion coefficient determined by the value of the derivative of the chemical potential in concentration. An equation is derived for determining the flow of particles to the membrane surface in the Knudsen layer by its thickness using the free path length of particles, the average velocity of thermal motion of molecules, the average residence time of particles in the Knudsen layer. The probability of particles passing through the pore is estimated, taking into account the influence of the activation energy for the passage of the solvent and the ratio of the interparticle distance in the pore to the free path length, and the selectivity of the membrane is estimated. An equation is obtained for calculating the length of the dissolution front in a micellar solution inside a membrane pore. An equation is obtained for calculating the kinetic factor in a micellar solution inside a membrane pore, taking into account the mass transfer coefficient along the interface, the diffusion coefficient, as well as the concentration of micelles in the medium and the solubilization rate constant. An effective design of a membrane apparatus for water purification is proposed.
Performance Evaluation of a Triangular-Prism Solar Still using Bagasse as a Porous Medium in the Malaysian Climate
Authors: Zakaria Muhammad Hafizzullah , Md Yusop Azdiana , Muhammad Zaini Jamal Zaim , Mohd Jahari@Johari Ahmad Nizam , Sulaiman Noor Asyikin
Published: August 2024

The Solar Still System is a technology that applies fundamental concepts of water evaporation and condensation, making it easier to turn unclean or salty water into potable water through solar heat energy. This study focuses on Triangular-Prism Solar Still (TPSS), which has a distinctive physical structure that uses large surface areas on both sides to promote the retention of high temperatures inside the Solar Still area. The difference in internal and external temperatures of the Solar Still will encourage the formation of clean water droplets and, with the inclination of each side wall, help collect clean water. This experiment uses a Galvanized Steel tray to act as Phase Change Material (PCM); 100ml was produced within 4 to 5 hours of the operation. Using sugarcane bagasse as porous material results in a 2% improvement in overall performance. With the help of Thermo Electric components, two units of Peltier improved the significant result by increasing the 5% TPSS humidity. This study also showed better performance when using clean water than dirty water.
Examination and Improvement of the Taguchi-Based Nanofluids Impact on CO2 Absorption using Al2O3 Nanoparticles
Authors: Shakir Safa Waleed , Hussein Saif Saleh , Khazaal Shaymaa Hasan , Al-Naseri Hyder Akram , Ahmed Ahmed Mohammed , Hachim Rana Najah , Al-Dahhan Muthanna Hikmat
Published: August 2024

In this study, a batch absorption reactor was used to evaluate the nanofluid of a binary aqueous solution of monoethanolamine and 2-amino-2-methyl-1-propanol (MEA/AMP) with nanoparticles of aluminium oxide (Al2O3) as a solvent used to remove carbon dioxide (CO2) from simulated flue gas. Furthermore, the application of the Taguchi experiment design method determined the optimal conditions for the absorption process. This research focuses on the CO2 absorption process and the optimal conditions related to nanoparticle addition. The main effects of using nanofluid were investigated. The concentration of nanoparticles, nanoparticle size, and stirrer speeds were the evaluated factors. It found that the best conditions for using nanofluids in the absorption process were 0.00293 g/s, which is suitable for industrial applications using nanofluids.