bluuebunny/crossref_metadata_2025 huggingface dataset:
Use of pre-sowing soil microbiological analysis to predict the spread of sugar beet root rot
Authors: Kyselov Dmytro , Zmiievska Olena
Published: June 2024

Aphanomyces cochlioides and Rhizoctonia solani are two of the main soil phytopathogens of sugar beet, which lead to substantial losses in yield and quality. Since disease control capabilities are complex and pathogen monitoring is important for predicting risks, it is of great importance in rural production to create available methods for preliminary field assessment. The purpose of the study was to introduce a predictive methodology for assessing the potential of soils for their suitability for growing sugar beet in the system of short-rotation crop rotations. As an indicator plant, sugar beet seeds were used, which are not characterised by genetic resistance against these diseases. The possibility of using the pre-growing disease index (PPDI), which has a gradation from 0 to 100 and covariance with the actual yield, sugar content and gross sugar yield per hectare, is tested. The pre-sowing PPDI value is compared with the actual yield from each specific field to really assess the possibility of using the PPDI index to characterise yield losses on production crops. It is determined that with an increase in the PPDI value, the gross yield of sugar beet, sugar content, and gross sugar yield decreased. The results of studies show that one unit of PPDI causes a loss of gross yield at the level of 0.24 t/ha and a decrease in the sugar harvest by 0.018 t/ha. That is why, to manage the risks of growing sugar beet, it is necessary to assess the phytopathogenic load of the soil. It is established that the most harmful and permanently identified phytopathogens are Rhizoctonia solani and Fusarium ssp, which indicates the need to select hybrids that are characterised by resistance or high tolerance to these pathogens. The information obtained can be used for timely identification of infection risks, development of effective management strategies, and improvement of agricultural techniques for growing sugar beet to reduce crop losses and increase the efficiency of agricultural products
Knowledge Regarding HIV & AIDS among Opioid Substitution Client of Banke, Nepal
Authors: Ghimire Nisha
Published: June 2024

The issue of HIV and AIDS in substance and drug users is of significant concern, necessitating interventions to improve knowledge about the disease among individuals undergoing opioid substitution therapy. This study aimed to assess the existing knowledge of HIV and AIDS among opioid substitution therapy clients in the Banke District of Nepal. A descriptive, cross-sectional study was conducted among 50 respondents selected using non-probability purposive sampling techniques from the Methadone Maintenance Treatment Program at Bheri Zonal Hospital in Nepal. Data was collected using a semi-structured interview schedule and analyzed using both descriptive and inferential statistics. The findings indicated that 58.0% of respondents recognized HIV and AIDS as a communicable disease, and all respondents identified unsafe sexual contact and intravenous drug use as the primary modes of transmission. Additionally, 96.0% of respondents identified multiple sex partners as a high-risk group, and 100% and 98.0% of respondents recognized that avoiding sharing needles and using condoms during sex, respectively, could prevent transmission. The study also found that the primary source of information for respondents was peer groups. The findings indicate that respondents had a moderate level of knowledge about HIV and AIDS and its treatment. The study also revealed that there were misconceptions and insufficient knowledge regarding HIV and AIDS transmission, prevention, and treatment among intravenous drug users.
Stroke is Prevalent among South Asians, whether Living in Their home Country or Abroad
Authors: Fatima Andaleeb
Published: June 2024

Background and Purpose: Every year, 15 million people worldwide suffer from an acute stroke, with one-third dying due to the incident. South Asians have a greater stroke mortality rate than the rest of the world. The causes of South Asians' increased risk of cerebrovascular illness remain unknown. The following study seeks to examine current stroke knowledge comprehensively and systematically in South Asian populations, particularly identifying distinctive aspects of stroke epidemiology in this demography. Summary of Review: Stroke is a common occurrence among South Asians, which may be due to inadequate metabolic and glycemic responses. Furthermore, hyperglycemia and stress, early predictors of long-term stroke mortality, appear to predict stroke-related death. Socioeconomic circumstances additionally serve as contributory factors. Conclusion: Given their greater incidence of heart disease, stress, diabetes, and the need for specific healthcare techniques, this study emphasizes the urgency of more significant stroke research among the South Asian population.
Major AspeMajor Aspects of Genetic Dyslipidemiascts of Genetic Dyslipidemias
Authors: Leme da Rocha Martinez Tania
Published: June 2024

This work addresses some dyslipidemias with known genetic conditioning and presents aspects related to genetic markers that have been pointed out as risk indicators of development of obstructive arterial coronary disease. Among all the anomalies related to lipid metabolism, with well-defined genetic conditioning, familial hypercholesterolemia is the one that has been most studied. The gene that informs the LDL-c receptor is located on the short arm of chromosome 19 and houses 18 exons. About 150 mutations in the LDL-c receptor gene, resulting from the replacement, addition or loss of a base (point mutation) or consequent to the loss or addition of more than one nucleotide (insertions and deletions), have already been identified. It results from mutations involving the gene that conditions the formation of Apo E. Apo E has several allelic forms, of which E3 is the most common and it is believed that the other forms (E2 and E4) have originated by mutations occurring in E3: a substitution of arginine for cysteine at position 112 of the amino acid sequence differentiates E4 from E3, and the same substitution at position 158 gives rise to E2. The identification of the type of mutation is therefore important for the genetic counseling of individuals.
Medical Ozone Advantage effects as Complementary Treatment to the Antiretroviral Therapy in HIV Patients
Authors: Martínez-Sánchez Gregorio
Published: June 2024

Background/Aim: Oxidative stress (OS) has been demonstrated previously in HIV. Medical ozone (O3) has shown clinical efficacy in different diseases where OS is pathophysiological involved. This study characterizes the O3 effects as complementary treatment to antiretroviral therapy (ART) in HIV Cuban patients. Material and Methods: Prospective quasi-experimental study was carried out, with blood extraction before and after the application of one O3 cycle by rectal insufflation during 5 weeks in 20 HIV patients under ART. The clinical response of the patients was evaluated by comparing the final values of the virological, immunological, hematological, biochemical and OS indexes respect to the baseline values, also were compared to a supposedly healthy volunteer (SHV). Results: No significant differences were observed in the hematological and biochemical parameters evaluated (p>0.05) in the treated group at baseline and end of the study, with the exception of erythrocyte sedimentation rate. At initial significant differences (p<0.05) were observed for malondialdehyde, advanced oxidation protein product (AOPP), peroxidation potential, hydroperoxide (HPO), glutathione, catalase (CAT), superoxide dismutase (SOD) and nitric oxide with respect to SHV. After the O3 cycle the AOPP, HPO, CAT and SOD median values, did not show significant differences (p>0.05) respect to SHV. All the redox parameters improved significantly (p>0.05) at 8th weeks in relation to the baseline values of the group, also CD4+ T cells increased (p<0.05). Conclusions: The beneficial effects of medical ART-ozone combination, in terms of OS, were demonstrated in the studied patients, without hematologic or blood toxic influence, no pharmacological interactions and non-adverse reactions was observed.
Edebî Sistematik ve Belâgatin Perspektifinden Türk Müziğindeki Bestelerarası İlişkilerin Analizi
Authors: Tığlıoğlu Musa Kazım
Published: June 2024

Sanatta özgünlük esas olsa da her sanatçı, eserlerinde eslâfın eserlerinden etkilenir ve bilerek ya da bilmeyerek bu eserlerdeki bazı unsurları eserlerinde yeniden işler. Bu durum, husûsiyetle de bir an’aneye bağlı olan sanatlarda eserlerin oluşturulması sırasında birtakım benzerliklerin ortaya çıkmasına neden olur. Rastlanılan bu benzerlikler, Doğu ve Batı edebiyatlarında olduğu gibi Batı müziği müzikolojisi sahasında da tanımlanmış ve sınıflandırılmıştır. Ancak Türk müziği literatüründe benzer bir sınıflandırma eksikliği bulunmaktadır. Türk müziği üzerine çalışan araştırmacıların, bu tür benzerlikleri genellikle “nazîre”, “melodik-ritmik benzerlik”, “gönderme”, “çeşitleme”, “ezgi atfı”, “bestekârlık meşki” gibi terimlerle tanımlamakta olduğu, ancak, kullanılan terimin kavramla her zaman uyumlu olmadığı ve farklı terimlerin aynı mefhumlar için kullanıldığı gözlemlenmiştir. Makalede Klasik Türk edebiyatı belâgat terminolojisinden yola çıkılarak, literatürdeki bu kavram kargaşasına bir çözüm önerisi sunulmuş, Türk müziğindeki bestelerarası ilişkilerin tanımlanması ve açıklanmasında kullanılabilecek yeni terimler önerilmiştir. Türk edebiyat ve belâgat sanatlarında nazîre ve serikât-ı şi’riyye başlıkları altında yer alan ve metinlerarası ilişkileri tanımlayan terimler incelenmiş, bunlardan bazıları olan nazîre, tazmîn, iktibâs, irsâl-i mesel, tehzîl, tevârüd, selh, ilmâm, mesh, iğâre, nesh, intihâl, akd ve hâll terimleri ile Türk müziğindeki bestelerarası ilişkilerin tarif ve tasnifine yönelik yeni bir öneride bulunulmuştur. Adı geçen her bir terim Türk müziğinin önde gelen bestekârlarından örneklerle açıklanmıştır. Bu bağlamda Dede Efendi, III. Selim, Şakir Ağa, Zekâî Dede ve bazı yakın dönem bestekârlarının eserlerinden örnekler kullanılmıştır. Bu makalede ayrıca daha geniş bir düzeyde, sanatçıların seleflerinin eserlerinden nasıl yararlandıklarını ve neden bu yönteme başvurdukları irdelenerek bunun gelenek/tradisyon oluşumuna nasıl bir etkisi olduğu açıklanmaktadır. Önceki eserlerden malzemelerin ne şekilde ve neden kullanıldığı, ortaya çıkan sonucun kalitesine göre adlandırmanın nasıl değişeceği edebiyat terimleri ile farkları gösterilerek îzâh edilmiştir. Tesbit edilebildiği kadarıyla bu çalışma, sahasında bir ilk olma özelliği taşımaktadır. Batı müziğindeki bestelerarası ilişkiler Burkholder tarafından “müzikal ödünç” kavramı altında 14 maddeye ayrılarak sınıflandırmaktadır. Onun bu tasnifi yaparken kullandığı terimlerin çoğunlukla edebiyat mahreçli olması, çalışmanın ilham kaynaklarından biri olmuştur.
Peningkatan Mutu Pendidik di Sekolah Alam Prasasti Sukatenang Bekasi
Authors: Prasmoro Alloysius Vendhi , Supratman Jasan , Spalanzani Widya
Published: June 2024

Sekolah Alam Prasasti, located in Piket Village, Sukatenang Village, Sukawangi District, is a free educational institution founded by a couple of activists and culture lovers. The subjects taught are character building, academic logic, leadership, entrepreneurship, and conservation and the environment. The many levels of education from kindergarten to high school taught by teachers at these schools, makes teachers experience difficulties in teaching subjects to their students. The need for competence in the field of soft skills such as informative teaching methods in the form of the basics of communication, public speaking and microteaching is very necessary. Therefore, assistance and training are needed in making learning media for inscription natural school teachers in order to improve teacher competence. The purpose of the activity and focus in this service is to meet the needs of the Alam Prasasti school, namely micro teaching training, good teaching methods, how to increase educational insight, educational psychology of teaching, IT education and development which includes mastery of Microsoft Office, graphic design, digital marketing , public speaking, curriculum making, human people intelligence, children's intelligence standards which are also an urgency for basic knowledge needs for teachers. The proposed activity plan is in the form of increasing teacher competence, competency-based integrity programs, training on the preparation of tools, educational supervision programs, soft skill-based training, educational observation and evaluation training.
Pelatihan Digital Marketing untuk Produk Wirausaha Mahasiswa Masa Pandemi Covid-19
Authors: Wijaya Andy Arya Maulana , Sa’ban L.M Azhar , Sadat Anwar , Nastia  , Riniati Waode
Published: June 2024

Baubau City in the future need for labor is more competitive, estimating the growth of the need for employment and the workforce in the next few years has implications for the need for creative innovation to be able to work. This community service activity aims to provide education for business actors at the University Muhammadiyah Buton. The method of carrying out activities using socialization and FGD to students with a digital marketing approach, external activities directed at creating content uploaded on YouTube to be disseminated. The result of the activation process is that student business actors have practiced digital marketing patterns, mainly through social media posts, but in content management and display are not optimal. With the implementation of digital marketing training, business students can optimize social media for marketing, create easy-to- remember account names, post regularly and regularly, use hashtags, as well as active social media interactions to better respond to consumen. In addition, training assignments are carried out through the creation of video content and have been uploaded via YouTube.
Revitalisasi Fasilitas PAUD Pelangi Guna Meningkatkan Kualitas Pendidikan Usia Dini
Authors: Sabilah Ade Irpan
Published: June 2024

Many schools are trying to improve infrastructure and facilities at inadequate costs so that the school can survive. Revitalization is carried out to seek quality in learning activities not to decline. Revitalization of educational infrastructure and facilities needs to be done because there are several problems that need to be reorganized and fundamentally changed. Rainbow PAUD in its daily educational operations comes from self-help from the Rainbow PAUD management itself with the help of sub-district parties and the surrounding community who care about education in the area, but in reality it is still felt that good educational standards cannot be met due to facilities and infrastructure. to support activities, the quality of education is still not said to be good or in other words it is still inadequate. With this, the team's goal is to carry out community service activities, namely revitalizing teaching and learning facilities and infrastructure, especially student classrooms, adding learning media such as reading books, writing exercise books and adding material in learning at Pelangi PAUD Education so that the learning process becomes comfortable and has high motivation.
Model Pendampingan Pembelajaran Daring saat Pandemi Covid-19
Authors: Khosyi’in Muhammad , Budisusila Eka Nuryanto
Published: June 2024

The government's appeal regarding the Covid-19 pandemic to carry out online learning through video conferences, digital documents and other online means is not without problems. Lack of knowledge about media use, especially the use of Information and Communication Technology, is the biggest problem. The program organized to solve these obstacles is to carry out online learning mentoring activities. The mentoring program began by holding an online Forum Group Discussion to obtain information on the needs and constraints of teachers in conducting online learning. The action continued with filling out questionnaires about the implementation of online learning to get information on online learning models carried out by teachers. From the questionnaire, ten teachers were identified who later became participants in learning assistance. Scheduled mentoring is carried out online for three days with the Zoom material for Video Conference, the use of the classroom for online classes, and google forms to create simple quizzes. Unscheduled mentoring is carried out from before the training until all teachers can implement the online learning model provided. The results of the mentoring show that these activities are beneficial and have been implemented in the online learning process. The Zoom application is the most widely used platform in online learning. The problem faced by the participants were related to data connections and internet network infrastructure.
Automatización de los procesos de cobro de agua potable en los sectores rurales de la Provincia de Chimborazo-Ecuador, utilizando Software Libre
Authors:   Instituto Tecnológico Superior San Gabriel Riobamba, Ecuador, Huilca Loyola Ángel Polivio , Sauce Tene Luis Fredy
Published: June 2024

La automatización de los procesos para el cobro de agua potable en los sectores rurales de la provincia de Chimborazo, Ecuador mediante el uso de software libre es un proyecto que busca mejorar la eficiencia y la transparencia en la gestión de los recursos hídricos. El propósito es reemplazar los procesos manuales de cobro por un sistema automatizado que utilice software libre. El sitio web de cobro de agua potable fue desarrollado a través de la metodología de Proceso Unificado, en el lenguaje PHP con framework Laravel y gestor de base de datos MySQL. La aplicación permitirá leer el valor del medidor, calcular el monto a pagar según el consumo y generar una factura para el usuario. El objetivo es mejorar el acceso y la calidad de los servicios básicos de agua potable en las zonas rurales. Además, el proyecto es administrado por una junta que está conformada por los mismos comuneros de la zona, lo que garantiza una gestión participativa y democrática de los recursos hídricos.
Chronology of the Messianic Ministry of the Lord Jesus Christ, Calculated in Accordance with the Old Testament Holidays
Authors: Мушкетова Александра монахиня
Published: June 2024

Бог повелел иудеям чтить Им установленные праздники, которые, как показало исследование, прообразовали будущие праздники Евангельской истории. Они были даны народу в Законе Моисея. Разработана методика и произведён расчёт календарных дат евангельских событий в их сезонной близости к ветхозаветным, с привлечением конвертирования дат с еврейского на юлианский календарь. Полученные результаты легли в основу построения Хронологии мессианского служения Господа Иисуса Христа от Зачатия и Рождества Богородицы Марии до Распятия, Воскресения и Вознесения Господа, и далее до Успения Божией Матери. Параллельный анализ ветхозаветных и новозаветных событий в одной таблице–хронике уточняет годы и подтверждает правильность датировки Евангельских праздников Святой Православной Церковью.

God commanded the Jews to honor the holidays He had established, which had prototypical significance for Gospel history. They were programmed in the Law of Moses. A methodology has been developed to calculate the calendar dates of the Gospel events in their seasonal proximity to those of the Old Testament, involving the conversion of dates from the Hebrew calendar to the Julian calendar. The results obtained formed the basis for constructing the Chronology of the Messianic ministry of the Lord Jesus Christs from the Conception and Nativity of the Virgin Mary to the Crucifixion, Resurrection and Ascension of the Lord, and further until the Dormition of the Mather of God. A parallel analysis of Old Testament and New Testament events in one chronological table clarifies the years and confirms the correctness of the dating of the Gospel holidays by the Holy Orthodox Church. Calculation of calendar dates according to the proposed methodology opens up new possibilities in the study and interpretation of Holy Scripture.
ANALISA PERFORMANCE MESIN ICE MAKER MENGGUNAKAN OUTDOOR AC BERKAPASITAS 7 KG
Authors: Sunanto  , Budhy Darmawan Dwikie
Published: June 2024

AC merupakan sebuah mesin penyejuk udara yang banyak digunakan di rumah ataupun perkantoran. Ternyata, selain menyejukan ruangan, AC juga bisa digunakan untuk membuat es batu. Mesin yang digunakan berupa unit outdoor AC split..tujuan dari penelitian ini menganilasa performansi kerja mesin ice maker berdasarkan besarnya nilai COP 9 Dari hasil penelitian tersebut dapat disimpulkan sebagaimana berikut, COPcarnot sebesar 4,276 dan efisiensi 77,6 %, daya listrik 352 Watt, dan biaya listrik perbulan Rp 356.910.
ANALISIS PENGARUH VARIASI KADAR GARAM TERHADAP PROSES PEMBEKUAN PADA MESIN ES BATU 40 L DENGAN MENGGUNAKAN KOMPRESOR 1 PK
Authors: Pangripto Pramudantoro Triaji , Sunanto  , Wulan
Published: June 2024

Es batu merupakan bahan pelengkap yang berasal dari air yang dibekukan di dalam lemari pendingin. Dengan menggunakan mesin AC 1 pk pembuatan es batu bisa dilakukan dengan proses pendinginan udara dan juga bisa dilakukan pendinginan dengan media air garam (brine). Hal ini bertujuan untuk mengetahui pengaruh variasi kadar air garam terhadap performansi mesin pembuat es batu. Dengan pengujian sebanyak 3 kali yaitu dengan konsentrasi kadar garam 30, 40, dan 50% dalam air sebanyak 40 liter pada pengujian selama 4 jam menggunakan refrijeran R22. Kesimpulan dari hasil penelitian ini, percobaan pengaruh kadar garam terhadap pembekuan es batu dengan menggunakan kadar garam 50 % lebih baik dibandingkan dengan kadar garam 30% dan 40 %. Dapat dilihat nilai COP aktual yaitu 4,5 dan COP carnotnya yaitu 8,1 sehingga memiliki nilai effisiensi lebih tinggi dengan nilai 55 %. Sedangkan pada kadar garam 30 % memiliki nilai COP aktual 3,2 dan COP carnot 7,4 sehingga didapatkan nilai effisiensi nya 43% dan kadar garam 40 % memiliki nilai COP aktual 3,7 dan COP carnot 7 sehingga didapatkan nilai effisiensi nya 53 %. Dari hasil di atas dapat diketahui bahwa semakin banyak persentase kadar garam pada sistem mesin pembekuan es batu, maka semakin rendah hasil suhu kabin yang didapatkan sehingga mempercepat pada proses pembekuan es batu.
ANALISIS EFISIENSI DAN KEAMANAN KONFIGURASI WEB PROXY DALAM MENGELOLA TRAFIK INTERNET DI LINGKUNGAN PENDIDIKAN
Authors: Rahmat Dadan , Muharraran Zahara , Agustian M Abil
Published: June 2024

Internet use in educational settings is increasing, but can cause problems such as access to inappropriate content, the spread of malware, and misuse of bandwidth. Web proxies can be a solution for managing internet traffic efficiently and safely. This article analyzes the efficiency and security of web proxy configurations in managing internet traffic in educational environments.
The efficiency of web proxy configuration is influenced by the type of web proxy, cache configuration, and bandwidth configuration. The security of a web proxy configuration is affected by authentication, content filtration, and software updates.
Proper web proxy configuration can increase the efficiency and security of internet access for users in educational environments.
IMPLEMENTASI METODE NORMALIZE DIFFERENCE DROUGHT INDEX (NDDI) TERHADAP PEMANTAUAN PRODUKTIVITAS PERTANIAN TANAMAN PADI (STUDI KASUS: KECAMATAN JONGGOL TAHUN 2019-2022)
Authors: Firdaus Rizky Awaludin , Hermawan Erwin , Kamilah Nurul
Published: June 2024

Pentingnya sektor pertanian padi dalam perkembangan ekonomi tidak dapat diabaikan, mengingat bahwa padi menjadi sumber utama makanan bagi sebagian besar masyarakat di Indonesia. Padi merupakan salah satu komoditas dalam sektor tanaman pangan sebagai penghasil beras. Kecamatan Jonggol merupakan salah satu sentra produksi beras di Kabupaten Bogor yang beberapa tahun ini mengalami penurunan produktivitas. Salah satu faktor yang mempengaruhi hasil produksi padi adalah tingkat kekeringan lahan pertanian, serangan hama, penggunaan benih, kesuburan tanah, dan perubahan cuaca. Penelitian ini bertujuan untuk melihat hubungan antara nilai indeks kekeringan (NDDI) terhadap produktivitas padi di Kecamatan Jonggol. Penelitian ini menggunakan teknologi penginderaan jarak jauh melalui platfrom Google Earth Engine dengan memanfaatkan data citra satelit Sentinel-2A dari Tahun 2019-2022. Metode yang digunakan dalam penelitian ini adalah Normalize Difference Drogught Indeks (NDDI). Klasifikasi kekeringan dibagi menjadi lima klasifikasi, yaitu normal, kekeringan ringan, kekeringan sedang, kekeringan berat, dan kekeringan sangat berat. Berdasarkan Hasil analisis didapatkan nilai koefisien determinasi R2 sebesar 0,2627 atau 26,27% dan koefisien korelasi sebesar -0,513. Hal ini menandakan korelasi  sedang antara NDDI dengan produktivitas, dimana semakin meningkatnya NDDI akan menurunkan hasil produktivitas padi. Output dari penelitian ini berupa informasi dearah mana saja yang terdampak oleh kekeringan dan terjadi penurunan produktivitas di Kecamatan Jonggol berbasis WebGIS
METODE AGILE DEVELOPMENT DALAM PERANCANGAN UNDANGAN DIGITAL MENGGUNAKAN APLIKASI IONIC MOBILE DAN ANGULAR FRAMEWORKS
Authors: Heriyanto  , Ika Kurniawati  , Fachri Amsury  , Hernawati
Published: June 2024

Covid-19 pandemic has made people compete to create new digital-based business models, one of which is digital invitations. With the digital invitation, it is expected to reduce waste from paper and plastic produced from conventional invitations in general. In building the application, the author uses the Agile Development Method because this method can provide values faster with better quality and predictions. The Agile Development method in building this application also allows changing needs in the middle of the application Development process, because one of the properties of this method is flexibility. The author uses the Ionic Framework and Elementor in the application Development process because this Framework can produce applications that are easy, fast and have an attractive appearance. We develop this digital invitation application with the hope that people who want to organize events can take advantage of existing technology with digital invitations, instead of using conventional invitations which increase paper and plastic waste. In addition to this, the author's goal in building this application is to create business opportunities, namely by pioneering information technology companies/startups. The results of this study are a Mobile-based digital invitation application that can be downloaded on the Google Play Store which can be used by smartPhone users to create digital invitations
Mathematical Critical Thinking: Analysis of Middle School Students' Thinking Processes in Solving Trigonometry Problems
Authors: Tajuddin Annas Tasyah , Sujadi Imam , Slamet Isnandar , Hendriyanto Agus
Published: June 2024

Kemampuan berpikir kritis siswa dalam matematika saat ini masih lemah. Penelitian ini bertujuan untuk mengidentifikasi karakteristik kemampuan berpikir kritis matematis siswa dalam menyelesaikan masalah trigonometri. Metode penelitian yang digunakan adalah studi kualitatif dengan desain fenomenologi, melibatkan peneliti sebagai instrumen utama. Penelitian ini menggunakan tes (masalah trigonometri), pedoman wawancara, dan observasi sebagai instrumen non-tes. Subjek penelitian terdiri dari tiga siswa kelas X yang dipilih dengan teknik purposive sampling. Uji keabsahan dilakukan melalui triangulasi metode dan teori, serta analisis data menggunakan teknik induktif. Hasil penelitian menunjukkan bahwa siswa dengan kemampuan berpikir kritis cenderung lebih efektif dan cepat dalam menyelesaikan masalah trigonometri. Mereka memiliki pendekatan unik dalam memecahkan masalah dan fokus pada pencarian jawaban. Pemikiran kritis matematis juga mempengaruhi kemampuan siswa dalam memahami dan menghubungkan informasi yang ada dalam soal. Selain itu, pemikiran kritis matematis berdampak pada pemikiran logis dan daya ingat yang baik, sehingga siswa lebih mudah dalam menentukan formula pemecahan masalah.
Students' critical thinking skills in mathematics are currently still weak. This study aims to identify the characteristics of students' mathematical critical thinking abilities in solving trigonometry problems. The research method used is a qualitative study with a phenomenological design involving researchers as the main instrument. This study uses tests (trigonometry problems), interview guidelines, and observation as non-test instruments. The research subjects consisted of three class X students selected by purposive sampling technique. The validity test was carried out through method and theory triangulation and data analysis using inductive techniques. The results showed that students with critical thinking skills tended to be more effective and faster in solving trigonometry problems. They have a unique approach to solving problems and focus on finding answers. Mathematical critical thinking also affects students' ability to understand and relate the information contained in the problem. In addition, mathematical critical thinking impacts logical thinking and good memory, so students find it easier to determine problem-solving formulas.
Improving Junior High School Students' Ability to Ask Mathematical Problems through the Use of Geogebra-Based Learning Media
Authors: Puspitasari Nitta , Sofyan Deddy , Handriani Ratrianing Tias Sri , Maharani Renita Putri
Published: June 2024

Penelitian ini dilatarbelakangi oleh pentingnya mengembangkan kemampuan mengajukan masalah, dan meningkatkan kualitas pembelajaran melalui pemanfaatan aplikasi geogebra. Tujuan dari penelitian adalah untuk mengetahui apakah kemampuan mengajukan masalah siswa yang menggunakan media pembelajaran berbasis geogebra lebih baik dibandingkan yang berbasis power point, ditinjau (a) secara umum, dan (b) setiap indikator kemampuan mengajukan masalah. Penelitian ini menggunakan penelitian kuantitatif dengan metode komparatif. Sampel dipilih secara acak kelas, yaitu siswa kelas VIII J sebanyak 31 siswa yang pembelajarannya menggunakan media berbasis power point, dan VIII K sebanyak 32 siswa berbasis geogebra Analisis data menggunakan uji parametrik untuk membandingkan kemampuan pengajuan masalah. Hasil penelitian ini adalah kemampuan mengajukan masalah matematik siswa yang menggunakan media pembelajaran berbasis geogebra lebih baik dibandingkan dengan berbasis power point, ditinjau secara umum, dan setiap indikator kemampuan mengajukan masalah.  Simpulan dari penelitian ini adalah penggunaan media pembelajaran berbasis geogebra dapat meningkatkan kemampuan mengajukan masalah.
This research is motivated by the importance of developing problem posing abilities and improving the quality of learning through the utilization of GeoGebra applications. The aim of the research is to determine whether the problem posing abilities of students who use GeoGebra-based learning media are better compared to those based on PowerPoint, both (a) in general, and (b) for each problem posing ability indicator. This research employs quantitative research with a comparative method. Samples were randomly selected classes, namely class VIII J consisting of 31 students whose learning used PowerPoint-based media, and class VIII K consisting of 32 students using GeoGebra-based media. Data analysis used parametric tests to compare problem posing abilities. The results of this research indicate that the mathematical problem posing abilities of students using GeoGebra-based learning media are better compared to those based on PowerPoint, both (a) in general, and (b) for each problem posing ability indicator. The conclusion drawn from this research is that the use of GeoGebra-based learning media can enhance problem posing abilities.
Enhancing Wind Turbine Efficiency Within the Eolic Cell: A Metamodel-Driven Approach
Authors: Baca Giusep , Calle Alfredo R. , Gonzales Salome
Published: June 2024

In the pursuit of sustainable energy solutions, wind power emerges as a pivotal contender. This research pioneers the integration of a Horizontal Axis Wind Turbine (HAWT) into the Eolic Cell—a modular wind energy system designed for augmented wind speed and efficiency. Our primary objective is the holistic optimization of HAWT performance, considering five distinct Tip Speed Ratios (TSR) to account for varying conditions. To optimize turbine performance, we manipulate three key parameters: pitch angles of turbine blades along the radius, the First-Grade coefficient, the Second-Grade coefficient, and the NACA profile chord. A novel Metamodel of Optimal Prognosis (MOP) methodology is introduced, streamlining computational efficiency and facilitating gradient-based optimization across the chosen TSRs. This research marks a significant stride in advancing wind energy solutions for distributed generation, focusing on practical efficiency enhancements. It leverages innovative approaches in wind power generation, laying the groundwork for a sustainable energy future. This article signifies the initial phase of our exploration into harnessing the potential of Eolic Cells as a transformative solution for distributed energy generation, with future research endeavors aimed at validating its practicality.
TEG Heat Sink Heat Exchange Performance Evaluation and Validation Utilizing Thermographic Phosphor
Authors: Kang Seongmin , Seo Myungjin , Lee Kyungjun , Hideo Mori , Jeong Jae-Ho
Published: June 2024

Utilized thermographic phosphor to evaluate the heat exchange performance of the heat transfer fins. Designed a wind tunnel chamber to evaluate the heat exchange performance of TEG’s heat transfer fins. Preliminary experiments were conducted utilizing an infrared camera to compare results with those taken with a regular CMOS camera. The calibration chamber also designed to determine the phosphors luminescence property to real surface temperature. CFD flow analysis was performed under the same conditions to match the specifications of the experimental device to verify feasibility.
Experimental Analysis of a Diesel-Engine Generator Fueled with Syngas and EGR in Dual Fuel Modes
Authors: Sutheerasak Ekkachai , Pirompugd Worachest , Sanitjai Surachai , Chuepeng Sathaporn
Published: June 2024

Syngas produced from biomass fuels is studied for renewable energy in combustion engines. Syngas used in dual fuel modes can reduce diesel consumption in diesel engines, but exhaust products are increased. Exhaust gas recirculation (EGR) can increase fuel efficiency and decrease exhaust emissions. Therefore, the research aims to study the performance and emission of a diesel-engine generator at 3,000 rpm and various loads, fueled with dual fuel modes by adding syngas, air, and EGR. Syngas was generated from wood pellet by a downdraft gasifier. Flow rates of syngas and air were added at 93 lpm and 86 lpm, respectively. EGR was expanded from 0.36 to 1.92 lpm. The best engine performance in dual fuel modes was found at 3.82 kW. The increase of syngas, air, and EGR flow rates led to the changes of engine performance and exhaust products. Regular diesel combined with syngas-air-EGR blend by increasing syngas, air, and EGR at 93 lpm, 86 lpm, and 0.84 lpm led to the addition of engine performance and the reduction of exhaust emissions. Outstandingly, carbon dioxide, carbon monoxide, nitric oxides, and particulate matter were decreased by 2.98%, 10.08%, 12.64%, and 2.60%, respectively. The regular diesel saving was raised by 43.33% compared with the mode of only regular diesel.
Multistage Planning Model with Photovoltaic Distributed Generation in Low Voltage Networks of Rural Electrical Systems
Authors: Quispe Anccasi Carlos
Published: June 2024

In an emerging electricity market in which concepts of energy transition, energy security, quality and efficiency are included, it is essential to incorporate renewable energies as a fundamental factor for the development and sustainability of electricity systems. The evolution of demand requires the electrical system to guarantee quality and efficiency, in this aspect planning is fundamental, therefore, the current research proposes a multistage planning model with photovoltaic distributed generation in low voltage networks of rural electrical systems for cost optimization. In the first stage, this model uses clustering optimization methods, approximate analysis methods of the low voltage network, simultaneity factors by demand blocks, and 10x10x4x3 factorial experimental design, which allow the location and capacity of distributed generation to be able to be established. In addition, the trend and econometric methods determined that the annual demand growth rate is 4.99%. For the technical assessment were established two alternatives, on the one hand with distributed generation and, on the other hand without this one, In the first case, the outcomes of the load flows with sum of currents methods, the monthly energy lost is 59,517 kWh, 149,898 kWh and 285,278 kWh for the years 2027, 2033 and 2043, respectively as well as the reduction of voltage drops in average percentage is 0.68%, 0.88% and 1.06% for the years 2027, 2033 and 2044, respectively. Finally, the minimum cost with distributed generation is US$ 134,120.47, NPV of 678,519.07, and IRR of 50.86%.
Performance Optimization of Double-Absorber Perovskite Solar Cell: Numerical Calculations
Authors: Yasin Shadi , Moustafa Mohamed , Waar Ziad Abu
Published: June 2024

In this study, we designed and simulated a new double absorber perovskite solar cell device by performing numerical analysis using SCAPS-1D. The architecture of the solar cell device consists of Glass/FTO/C2N/CsSnGeI3/CsSnI3. Optimizing the core parameters of CsSnGeI3 implied to an encouraging solar cell performance with a remarkable power conversion efficiency of 28.61%. The results show that increasing the thickness of CsSnGeI3 to 1000 nm enhances the solar cell performance. The simulations show that increasing the absorber layer thickness is desirable to promote the spectrum absorption process, thus accelerating the generation rate of the charge carriers. Increasing the doping density in CsSnGeI3 implied to inconsistent impact on the solar cell performance. The solar cell displayed the optimal performance at low and high doping level, while at intermediate doping level, the solar cell efficiency depreciates to 23.18%. This result is ascribed to creation unstable depletion regions at this doping level, which prevent the charge carriers from reaching the metal back contact. Additionally, increasing the defect density in CsSnGeI3 yielded a sharp continuous degradation in the device performance. The power conversion efficiency decreased to 15.22%. Finally, increasing the operating temperature showed a harsh impact on the solar cell performance, and the optimal performance occurs at 300 K. It is believed that the simulated model represents an added value and a great potential in the field of solar cells research and fabrication.
NMC Lithium-Ion Batteries SOH Estimation Using CNN-LSTM Neural Network
Authors: Toughzaoui Yassine , Hammou Abdelilah , Petrone Raffael , Gualous Hamid , Diallo Demba
Published: June 2024

Lithium-ion batteries have gained more place in the energy storage market thanks to their different advantages. However, their performance and safety decrease with ageing. Hence, the monitoring of their internal states is a mandatory condition to optimize their operations. The State of Health (SoH) of lithium-ion batteries is commonly quantified by the fade of the cell capacity. This paper presents a hybrid artificial neural network model for SoH estimation for electric vehicle applications. The estimation method combines the Long Short-Term Memory (LSTM) combined with the Convolutional Neural Networks (CNN) to estimate the SoH of NMC lithium-ion cells from voltage measurements. The model was trained and tested based on experimental data obtained from the cycling of four NMC cells. The cells are cycled with a dynamic current profile under a controlled temperature of 35 °C. The diagnosis model was tested for each cell using the Leave One Out Cross Validation (LOOCV) approach to evaluate the robustness against the cell’s inconsistency.
Efficiency Improvement of Class E Capacitive Power Transfer System Using State Feedback Controller
Authors: Saat S. , Alhattami A. , Yusop Y. , Husin S.H. , Awal M.R. , Shapri A.H.M.
Published: June 2024

This paper addresses the enhancement of efficiency in Class E Capacitive Power Transfer (CPT) systems by using a state feedback controller. Efficient operation is a critical concern in CPT systems due to their sensitivity to parameter variations, notably changes in coupling capacitance and load conditions. Variations in these parameters can substantially reduce the overall system efficiency. Therefore, this paper aims to develop a state feedback controller that can bolster system efficiency even in the presence of parameter variations. To be specific, this study begins by modelling the Class E CPT system using a combination of Generalized State-Space Averaging (GSSA) and Frequency-Domain Harmonic Analysis (FHA) techniques. Subsequently, a Lyapunov function is employed to devise the state feedback controller. The problem is then formulated using Linear Matrix Inequalities (LMIs) and tackled through the utilization of Yalmip. The efficacy of the proposed solution is validated through simulation work. The simulation results demonstrate that the proposed controller is capable of maintaining the CPT system’s output efficiency at a level exceeding 98%, even when subjected to a maximum of 30% variation in load conditions.
Development of electroslag remelting technology for obtaining multilayer billets
Authors: Matveeva M. A.
Published: June 2024

The paper analyzes the methods of external influence on the electroslag remelting process in order to obtain multilayer ingots. The method of electroslag remelting with rotation of the consumable electrode is proposed, which leads to the appearance of centrifugal force that affects the heat pattern in the metal bath by changing the place of delivery of electrode metal droplets and form the crystallization front, providing greater crystalline homogeneity in the axial direction. Application of the electrode rotation technology allows to obtain multilayer ingots with a minimum transition zone between layers of different chemical composition. For realization of this method it is necessary to give the electrode unidirectional or reversible rotation around its axis or the axis of the bath at asymmetric location of the electrode. The rotation speed of the electrode depends on its diameter. For electrodes with a diameter of 40–250 mm it is 30–90 rpm. Rotation of the consumable electrode has a complex positive effect on remelting performance: it increases productivity without increasing the suitable power for the slag bath; it increases refining capacity; it changes the place of electrode metal delivery into the metal bath and forms the crystallization front, providing greater crystalline homogeneity in the axial direction. Application of the technology of rotation of the consumable electrode makes it possible to introduce chemical composition-correcting additives into the liquid metal bath from the ingot surface by applying a coating consisting of filler material and water-based non-stick paint to the remelting electrode.
Eminence and Contributions of the Companions in the Development and Teaching of the Qur’ān in the First Hijri Century
Authors: Alias Norazman , Yusof Nor Hafizi bin
Published: June 2024

The process of Qur’ānic teaching in the Islamic world began during the Era of Revelation. Islamic history proves that the Qur’ān was inherited through talaqqī bi al-Mushāfahah (direct oral transmission) from teacher (murshid) to student, passing through a chain of teachers until it reaches the source of its revelation that is Prophet Muḥammad. The companions of the Prophet played a significant role in spreading the message of Islam across the world during their time by teaching the Qur’ān to the Ummah (Muslim community). A significant number of modern Muslims don't have much knowledge about Islamic history, including the vital roles played by the companions in shaping and disseminating the teachings of the Qur’an. This research aims to provide a brief overview of the early history of the development and teaching of the Qur’ān in the first century of the Hijri and explored the scholarship of the companions involved. The study utilised a literary method and a historiographical approach. Each historical fact recorded was analysed through the process based on inductive (taḥlīli), deductive (istinbāṭ), and comparative (muqāranah) methods, while relying on the historical references as primary sources authored by the Islamic scholars. The findings revealed that a significant number of companions, not only Muslim men but also women, played an essential role in disseminating the Qur’ān during the first century of the Hijri calendar.
Anti-adhesion barriers in operative gynecology
Authors:   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation, Gudz' O.V. , Sulima A.N. ,   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation, Glazkov I.S. ,   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation,   Simferopol Clinical Maternity Hospital No. 2, Simferopol, Russian Federation, Rumyantseva Z.S. ,   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation, Miklin O.P. ,   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation, Ermachkova P.A. ,   V.I. Vernadskiy Crimean State University, Simferopol, Russian Federation
Published: June 2024

This paper provides a comprehensive study and detailed description of the state-of-the-art of the issue of postoperative adhesions, methods to prevent this complication, and factors that contribute to reducing the risk of adhesions. Adhesions are one of the most common complications of surgical interventions. Abdominal and pelvic surgery can provoke chronic pain, infertility, intestinal obstruction, and other complications. Despite the availability and active use of high-tech medical equipment, adhesions can complicate every surgical procedure. Extensive research has now led to a better understanding of the process of adhesion formation; cellular hypoxia is hypothesized to play a crucial role. A deeper understanding of the factors that provoke adhesions will improve technologies and the development of novel methods of prevention and treatment of adhesions This will result in a clinically relevant improvement of current approaches employed to prevent postoperative adhesions The gold standard for the prevention of adhesions is a qualified surgical technique and care to minimize tissue trauma, particularly to the peritoneum. In the future, drugs for the prevention of adhesions and measures to reduce their severity will become increasingly important KEYWORDS: adhesions, anti-adhesion barriers, laparoscopy, gynecology, prevention, postoperative adhesions. FOR CITATION: Gudz' O.V., Sulima A.N., Glazkov I.S., Rumyantseva Z.S., Miklin O.P., Ermachkova P.A. Anti-adhesion barriers in operative gynecology. Russian Journal of Woman and Child Health. 2024;7(2):144–149 (in Russ.). DOI: 10.32364/2618-8430-2024-7-2-9.