bluuebunny/crossref_metadata_2025 huggingface dataset:
Continuum of care for maternal health in Uganda: A national cross-sectional study
Authors: Sserwanja Quraish , Mukunya David , Nabachenje Prossy , Kemigisa Alleluyah , Kiondo Paul , Wandabwa Julius N. , Musaba Milton W.
Published: February 2022

Introduction

A continuum of maternal care approach can reduce gaps and missed opportunities experienced by women and newborns. We determined the level of coverage and factors associated with the continuum of maternal care in Uganda.

Methods

We used weighted data from the Uganda Demographic and Health Survey (UDHS) 2016. We included 10,152 women aged 15 to 49 years, who had had a live birth within five years preceding the survey. Stratified two-stage cluster sampling design was used to select participants. Continuum of maternal care was considered when a woman had at least four antenatal care (ANC) visits, had delivered in a health facility and they had at least one postnatal check-up within six weeks. We conducted multivariable logistic regression analysis to determine factors associated with completion of the continuum of maternal care using SPSS version 25.

Results

The level of coverage of complete continuum of maternal care was 10.7% (1,091) (95% CI: 10.0–11.2). About 59.9% (6,080) (95% CI: 59.0–60.8) had four or more antenatal visits while 76.6% (7,780) (95% CI: 75.8–77.5) delivered in a health facility and 22.5% (2,280) (95% CI: 21.5–23.2) attended at least one postnatal care visit within six weeks. The following factors were associated with continuum of maternal care; initiating ANC in the first trimester (AOR 1.49, 95% CI: 1.23–1.79), having secondary level of education (AOR 1.60, 95% CI: 1.15–2.22) and tertiary level of education (AOR 2.08 95% CI: 1.38–3.13) compared to no formal education, being resident in Central Uganda (AOR 1.44, 95% CI:1.11–1.89), Northern Uganda (AOR 1.35, 95% CI: 1.06–1.71) and Western Uganda (AOR 0.61, 95% CI: 0.45–0.82) compared to Eastern Uganda, and exposure to newspapers and magazines.

Conclusion

The level of coverage of the complete continuum of maternal care was low and varied across regions. It was associated with easily modifiable factors such as early initiation of ANC, exposure to mass media and level of education. Interventions to improve utilisation of the continuum of maternal care should leverage mass media to promote services, especially among the least educated and the residents of Western Uganda.
Identification of potential interleukin-8 inhibitors acting on the interactive site between chemokine and CXCR2 receptor: A computational approach
Authors: Tran Thi-Thuy-Nga , Tran Que-Huong , Nguyen Quoc-Thai , Le Minh-Tri , Trinh Dieu-Thuong Thi , Thai Khac-Minh
Published: February 2022

Interactions between interleukin (IL)-8 and its receptors, CXCR1, and CXCR2, serve crucial roles in inflammatory conditions and various types of cancers. Inhibition of this signaling pathway has been exploited as a promising strategy in treating these diseases. However, most studies only focused on the design of allosteric antagonists-bound receptors on the intracellular side of IL-8 receptors. Recently, the first cryo-EM structures of IL-8-CXCR2-Gi complexes have been solved, revealing the unique binding and activation modes of the endogenous chemokine IL-8. Hence, we set to identify small molecule inhibitors for IL-8 using critical protein-protein interaction between IL-8 and CXCR2 at the orthosteric binding site. The pharmacophore models and molecular docking screened compounds from DrugBank and NCI databases. The oral bioavailability of the top 23 ligands from the screening was then predicted by the SwissAMDE tool. Molecular dynamics simulation and free binding energy calculation were performed for the best compounds. The result indicated that DB14770, DB12121, and DB03916 could form strong interactions and stable protein-ligand complexes with IL-8. These three candidates are potential IL-8 inhibitors that can be further evaluated by in vitro experiments in the next stage.
Africa, film theory and globalization: Reflections on the first ten years of the Journal of African Cinemas
Authors: Tomaselli Keyan G.
Published: February 2022

Achievements marked by the tenth anniversary of the Journal of African Cinemas is the focus of this retrospective on the origins and development of the publication. The key question addressed is how to ensure that the inclusion of films and film theory by resident Africans can be made integral to the re-envisioning of the whole field. In answering this question, the overview examines the journal’s initial objectives and how they have been met. Editorial board members and guest editors were canvassed for their impressions, and a numerical analysis of author locations is plotted. The findings reveal a significant African presence now in studies of African films and in the composition of the journal’s authorship and editorial boards. The geographical spread of national and regional studies across the entire continent, sometimes in translation, from Arabic northern Africa to multilingual southern Africa is a key feature of the journal’s success. The conclusions reached are that the journal has successfully integrated African-based scholarship onto the world’s stage, has enabled the study of African film to link from its previous African studies’ epistemological location to now also be considered as film studies per se and new electronic distribution facilities have catalysed post-theory approaches that transcend the Cold War binaries of ‘Third Cinema’, national cinema’, ‘national culture’ and other twentieth-century categories.
MANUFACTURING INDUSTRIES IN THE ASIAN PART OF RUSSIA: STRATEGIES AND DEVELOPMENT OPPORTUNITIES
Authors: Sokolov A. V. , Bazhanov V. A.
Published: February 2022

The article examines the state and development trends of manufacturing industries in the Asian part of the Russian Federation. The Asian part of Russia means the totality of the subjects of the federation of the Siberian and Far Eastern federal districts, as well as the Tyumen region. Manufacturing industries are presented in the article by twelve groups, corresponding to the positions in the tables of the statistical reference book «Regions of Russia: socio-economic indicators». The analysis of trends in the development of manufacturing industries was carried out according to the texts of the Strategies of socio-economic development until 2030-2035 in force at the time of writing. 22 regions of the Asian part of Russia. To analyze the trend in manufacturing output, panel data models with fixed and random effects were used. The calculation results showed a different level of development of manufacturing industries in the constituent entities of the Federation. Analysis of regional strategies revealed a commonality of intentions and opportunities for the development of processing in the Asian part of Russia, especially in terms of investment support for achieving strategic goals.
TRENDS IN THE DEVELOPMENT OF COOPERATION IN MODERN RUSSIA
Authors: Sharnina N. M.
Published: February 2022

The article presents the results of the analysis of the main trends in the development of Russian cooperation from the point of view of state statistics data, the world experience of the countries of the Asia-Pacific region, data from the website of one of the leaders of the cooperative movement — the Tatar Consumer Union.

Statistical analysis of generalizing indicators (absolute and relative indicators of dynamics, indicators of structure) and graphical representation of data were used as research methods. The available resources served as an information base: published scientific articles, data from the Russian state statistics, digital content of the Tatpotrebsoyuz website.

As a result of the analysis, the most popular areas of cooperation in the countries of the Asia-Pacific region are identified; the direction of the Russian dynamics of development in industrial cooperation (number of members), consumer cooperation (investment in fixed assets), housing and construction cooperation (commissioning of the total area of residential premises, delivery of apartments, the area of apartments rented) are outlined; detailed the development of the Tatar Consumer Union is detailed.
Phenotypic Characterization Of The Sudanese Desert Goat
Authors: Abi Ahmed
Published: February 2022

The goal of this research was to define the phenotypic characteristics of Sudanese desert goats, as well as the morphological traits of desert goats, in order to develop community-based breeding programs. Weight tape was used to take phenotypic measures of 60 desert goats on the college animal production farm. Coat color (black 31.6 percent, white 10%, brown 18.33 percent, mixture 40 percent), head profile (exerted shape100 percent), back shape (straight80 percent, curve11.6 percent), ear form (drop100 percent), horn orientation (backward97.67 percent, polled3 percent), beard (presence71.6 percent, absence28.33 percent), toggle (presence8.33 percent, absence91.6 percent), muzzle (pigment38.3 percent, absence91.6 percent) (absence100 percent ). Body weight (mean body weight 24.24), height at withers (mean height at withers 66.43), body length (mean body length 56.98), heart girth (mean heart girth 68.45), ear length (mean ear lenth19.28), rump width (mean rump width14.33), and tail length (mean tail length13.35) variables were among the quantitative traits were processed and documented. Desert goats were first discovered in the north Kordofan state, in the village of Abu Zabad. Significant variances in phenotypic measurements were found among all indigenous desert goats, and the findings of this study add to the phenotypic data of indigenous Sudanese desert goats.
Caracterización de niños y adolescentes con trastornos del espectro autista en Barranquilla, Colombia
Authors: De La Peña sanabria Ivan David , Berdejo Giovanetti Laury , Chavarriaga Ruiz Nataly , López Gulfo Diana Carolina , Rueda Manjarez Laura Marcela , Sánchez Charria Oscar Dario , Laza Nicolas
Published: February 2022

Introducción: Los trastornos del espectro autista constituyen un grupo de alteraciones del neurodesarrollo que se caracterizan por disfunción de dos dominios, según lo define el DSM V: 1) Alteración de la comunicación e interacción social y 2) Presencia de comportamientos, intereses o actividades restringidas o repetitivas. La prevalencia viene en ascenso a nivel mundial, con una frecuencia actual de 200 por cada 10 000 niños. No hay prevalencia establecida en Colombia, según la liga colombiana de autismo. La tasa de incidencia viene en ascenso, sin tener claro si el aumento está relacionado con cambios en los criterios diagnósticos, la metodología del estudio, un aumento real en la incidencia del autismo o una combinación de estos factores. Objetivo: caracterizar un grupo de pacientes con trastorno del espectro autista y reconocer cambios socioambientales que se relacionan con la población descrita. Métodos: estudio de tipo observacional descriptivo, de pacientes entre 1 y 18 años, diagnosticados clínicamente por parte de neurología y psiquiatría infantil, con trastorno del espectro autista, entre 2011 a 2017, en un centro de referencia de rehabilitación neurológica pediátrica. Resultados: se obtuvieron los datos de 253 pacientes con trastornos del espectro autista, con una edad promedio de inicio de síntomas de 22.4 meses (DE= 9.72) y edad al diagnóstico de 43.2 meses. El trastorno del espectro autista más frecuente fue de grado 1 o leve (39.5 %), siendo el síntoma más común, las estereotipias motoras (78.3 %) seguidas del déficit de  interacción y comunicación social (75.5 %). Conclusión: la importancia del reconocimiento temprano de las manifestaciones clínicas brinda un cambio en la oportunidad de diagnóstico e inicio temprano del tratamiento.
Dubravka Ugrešić. Pisarka i literatura zdeterytorializowana
Authors: Duda Maciej
Published: February 2022

Dubravka Ugrešić określa się jako pisarka transnarodowa. Jej polityczna, geograficzna i kulturowa dyslokacja stała się głównym tematem tekstów prozatorskich, które pisała w ostatnim dziesięcioleciu XX wieku. W kolejnej dekadzie tematem esejów Ugrešić stały się również kwestie związane z rynkiem literatury europejskiej. Autorka śledzi czytelnicze mody, przygląda się też kształtowi i funkcji publikacji określanych jako europejskie lub światowe bestsellery. Jako pisarka i badaczka literatury pochyla nad pojęciem transkultury. Jej wyznacznikiem uczyni doświadczanie nowego, szybszego sposobu przepływu informacji i towarów. Poetyka dzieła nie zostanie jednak naruszona/zmieniona. Podobnie jak historyczno- i krytycznoliteracka hierarchia ustanawiająca ramy kultury i w ironiczny sposób wartościująca kolejne lektury Ugrešić. Autorka-czytelniczka, która chce zrozumieć innych czytelników wielokrotnie zmieni paradygmat opisywanej przez siebie kultury. Rozpatrując relacje między autorem, dziełem i odbiorcą, ustali kulturę karaoke. Tej nie da się jednak oznaczyć jako literatura/kultura transnarodowa. W ten sam sposób nie można też określić literatury tworzonej przez Ugrešić. Rozpoznania poczynione w tekście pokazują, że w przypadku twórczości Ugrešić zamiast prefiksu «trans powinno się używać określenia «spoza». To zaś odnieść należy do kondycji pisarki. Kwalifikacja «spoza» wydaje się adekwatna dla określenia miejsca, z którego obserwuje i pisze autorka, nie dla formy jej literackiego dorobku.
Wpływ
Authors: Kraskowska Ewa
Published: February 2022

Hasło „wpływ” prezentuje krótką historię tego pojęcia oraz sposobów  jego rozumienia i stosowania w różnych dziedzinach i nurtach humanistyki.
IPS DALAM PENDEKATAN KONSTRUKTIVISME (STUDI KASUS PADA KEBUDAYAAN JAWA)
Authors: Wijayanti Tutik , Nugraha Saka Mahardika Oktav , Martanti Fitria , Sholeh Muh.
Published: February 2022

Social Sciences have a very broad scientific dimension. The scope of social studies is human social life in society. Therefore, this community is the main source of IPS. Whatever aspect of social life we ​​study, whether it be social relations, economics, culture, psychology, history, geography, or politics, comes from society. So, we need a philosophical approach that will provide modern, unconventional learning such as the constructivism approach. The method used in this research is the library study method. This research leads to the finding that teachers are no longer the only providers of knowledge. No longer the only source of learning. However, the teacher is positioned more as a facilitator who facilitates students to be able to learn and construct their knowledge. Based on observations on local wisdom and Javanese culture, the incorporation of social studies learning using a constructivist approach is expected to be able to make students democratic, responsible, and peaceful citizens of the world.

Ilmu Pengetahuan Sosial memiliki dimensi keilmuan yang sangat luas. Ruang lingkup IPS adalah kehidupan sosial manusia di masyarakat. Oleh karena itu, masyarakat inilah yang menjadi sumber utama IPS. Aspek kehidupan sosial apapun yang kita pelajari, apakah itu hubungan sosial, ekonomi, budaya, kejiwaan, sejarah, geografi, ataupun politik, bersumber dari masyarakat. Sehingga dibutuhkan suatu pendekatan filsafat yang akan memberikan suatu pembelajaran yang modern tidak konvensional seperti pendekatan konstruktivisme. Metode yang digunakan dalam penelitian ini ialah metode studi kepusatakaan. Penelitian ini bermuara pada temuan bahwa guru tidak lagi menduduki tempat sebagai satu-satunya pemberi ilmu. Tidak lagi sebagai satu-satunya sumber belajar. Namun guru lebih diposisikan sebagai fasiltator yang memfasilitasi siswa untuk dapat belajar dan mengkonstruksi pengetahuannya sendiri. Mendasarkan pengamatan pada kearifan lokal dan kebudayaan Suku Jawa, penggabungan pembelajaran IPS yang menggunakan pendekatan konstruktivisme diharapkan mampu menjadikan peserta didik menjadi warga negara yang demokratis, bertanggung jawab, serta warga dunia yang cinta damai.
Radikalisasi Makna Jihad di Era Modern: Studi Kasus Penafsiran QS. Al-Taubah: 73 Menurut Sayyid Qutb dan Abu A’la al-Maududi
Authors: Yati Nur Fadli , Kusmana Kusmana
Published: February 2022

This paper discusses the meaning of jihad in QS. At-Taubah: 73 according to two modern interpreters: Sayyid Qutub and Abul A'la Mawdudi. Their interpretation is very important because their thinking is an important reference in the current discourse of Jihad. With the descriptive-analytic method, the writing answers how the two Muslim thinkers interpreted the term jihad in the verse which supports the spirit of their respective da'wah movements in Egypt and Pakistan. This paper finds that the second author in interpreting the term jihad by the objective circumstances of their respective life contexts, Sayyid Qutb was influenced by the fact that some Muslims dealt with rulers who were considered dholim, and Egypt as a country is in a war conflict with Israel, as well as the resistance of some Muslim scholars including himself who are critical of the West. Meanwhile, Abul A'la Mawdudi was faced with the filling of the newly established Pakistani state, where he and his colleagues was founded political parties that were in the spirit of Islam. More than that, his romanticist attitude towards the early period of the Muslim community was used as a manhaj in understanding the messages of the Qur'an.
KADAR PROKSIMAT PADA TEPUNG Sargassum sp. TERFERMENTASI
Authors: Nugraha Aditiya , Mikdarullah Mikdarullah
Published: February 2022

Alga coklat (Sargassum sp.) merupakan rumput laut yang tersebar di hampir seluruh perairan Indonesia dan berprospek sebagai bahan baku pakan. Penggunaan Sargassum sp. sebagai bahan alternatif dalam formulasi pembuatan pakan ikan memerlukan pengujian. Tujuan dari kegiatan ini adalah untuk menentukan kadar air, abu, protein, lemak, serat kasar, dan BETN dari bahan baku rumput laut Sargassum sp. tanpa fermentasi dan difermentasi oleh kapang Aspergillus niger dan Rhizopus oligosporus. Pengamatan dilakukan di Laboratorium Kimia dan Laboratorium Basah Nutrisi dan Teknologi Pakan, BRPBATPP, Bogor. Alat yang digunakan adalah cawan petri, cawan porselin, blender, sudip, batang pengaduk, corong Buchner, pipet tetes, pipet mohr, bulp, gelas ukur, erlenmeyer, oven, tanur, desikator, labu kjeldahl, wadah alumunium, microfibre thimble, kaca arloji, neraca analitik, gegep, SoxtecTM 2055, Kjeltec 2100, TecatorTM Digestion, dan Jencons Digirate Pro, sedangkan bahan yang dipakai adalah Sargasum sp. yang telah difermentasi oleh R. oligosporus dan A. niger; petroleum benzena; kapas; H2SO4 1,25 %b/b; NaOH 5 %b/v; aseton; kertas saring Whatman no. 1; reagen selenium; NaOH 40%; HCl 0,2 N; H2SO4 teknis pekat; Indikator BCG-MM; dan aquades. Tepung rumput laut Sargassum sp difermentasi dengan kapang dan diinkubasi selama 7 hari kemudian dianalisis proksimat. Hasil pengamatan menunjukkan bahwa fermentasi menggunakan kapang A. niger dan R. oligosporus dapat memperbaiki kandungan nutrisi Sargassum sp.
ANALISIS ALKALINITAS DAN KESADAHAN PADA AIR LAHAN GAMBUT DI KABUPATEN MEMPAWAH, KALIMANTAN BARAT
Authors: Bayu Bayu , Sugito Slamet
Published: February 2022

Analisis alkalinitas dan kesadahan dilakukan untuk mendukung penelitian Studi Bioekologi dan Adaptasi Ikan Hias Lahan Gambut. Tujuan dari analisis ini adalah untuk mengetahui kadar alkalinitas dan kesadahan yang terkandung dalam habitat ikan hias lahan gambut. Analisis ini dilakukan in situ dan sampel uji berupa air lahan gambut di Kabupaten Mempawah (Kalimantan Barat) yaitu stasiun Sebukit dan stasiun Sawit. Analisis dilakukan dengan mengukur kadar alkalinitas dan kesadahan dengan metode spektrofotometri menggunakan instrumen spectroquant. Hasil analisis menunjukan bahwa kadar yang diperoleh yaitu Alkalinitas 30,51 ppm dan Kesadahan 2-3 ppm
PERHITUNGAN INDEKS NILAI PENTING DAN INDEKS KEANEKARAGAMAN PENUTUPAN JENIS MAKROALGA DENGAN METODE TRANSEK KUADRAT
Authors: Wiyanto Twynnugroho Hadi , Purwanti Dwi Ayu
Published: February 2022

Makroalga merupakan biota laut yang banyak ditemukan di sepanjang perairan pantai Indonesia. Informasi data kelimpahan makroalga di beberapa perairan masih sangat terbatas. Pantai Krakal yang terletak di sekitar perairan Kabupaten Gunung Kidul, Yogyakarta merupakan salah satu tempat yang banyak menghasilkan makrolaga. Kegiatan ini bertujuan untuk mengetahui indeks nilai penting dan indeks keanekaragaman penutupan jenis makroalga dengan metode transek kuadrat. Tahapan meliputi pemilihan lokasi, pembuatan petak transek kuadrat, dan dokumentasi makroalga. Petak transek kuadrat berukuran 100 cm x 100 cm dengan plot kecil berukuran 20 cm x 20 cm. Pengambilan data dilakukan sebanyak 10 kali ulangan dengan cara memasang petak transek kuadrat secara zig-zag dengan jarak antar petak transek yaitu empat meter. Pengambilan data dilakukan dengan cara mencatat semua jenis makroalga dan tutupan makroalga yang terdapat pada setiap luasan petak transek kuadrat. Data tersebut kemudian digunakan untuk menghitung kelimpahan relatif, penutupan relatif jenis, frekuensi relatif, dan indek nilai penting (INP), serta keanekaragaman penutupan jenis (HC’). Hasil yang diperoleh menunjukkan bahwa secara umum makroalga yang ditemukan di Pantai Krakal ada sembilan spesies dari filum Rhodophyta, Chlorophyta, dan Phaeophyta. Keanekaragaman makroalga di Pantai Krakal menunjukkan kategori sedang (1<H’<3) dengan nilai sebesar 1,75. Makroalga jenis Gelidium sp. merupakan jenis makroalga yang paling banyak ditemukan di lokasi kegiatan.
KUALITAS AIR PADA PEMELIHARAAN GLASS EEL DENGAN SISTEM PERBEDAAN VOLUME PERGANTIAN AIR DI INDOOR HATCHERY
Authors: Fajar Samsul , Maulana Muhammad Rizki , Supendi Supendi
Published: February 2022

Sidat merupakan salah satu komoditas hasil perikanan yang memiliki nilai ekonomis tinggi dengan tujuan ekspor. Salah satu tahapan budidaya sidat adalah kegiatan pembesaran (pendederan) larva sidat. Kegiatan ini merupakan upaya pemeliharaan dari fase glass eel menjadi fase elver (benih). Budidaya intensif dengan padat penebaran dan laju pemberian pakan yang tinggi dapat menimbulkan masalah kualitas air. Tujuan kegiatan ini adalah untuk mengetahui kondisi suhu, pH, dan oksigen terlarut pada pemeliharaan glass eel secara indoor. Metode kerja yang lakukan adalah pengukuran kualitas air secara insitu, dengan perlakuan perbedaan pergantian air, yaitu; (A) kontrol (tanpa pergantian air); (B) pergantian air 20%; (C) pergantian air 40%; dan (D) pergantian 60%. Pergantian air dilakukan setiap empat hari sekali. Secara umum hasil pengukuran kualitas air pemeliharaan glass eel untuk semua perlakuan masih berada dalam kisaran optimum yaitu suhu 26,5°C-30,1°C; pH 7,23-7,93; dan oksigen terlarut (DO) berkisar 2,51-4,58 mg/L. Perlakuan dengan pergantian air sebanyak 40% mampu memberikan nilai kualitas air yang lebih baik dibandingkan dengan perlakuan lainnya.
Increasing Knowledge of Basic Safety Tools on Boats to Teachers of Muhammadiyah Al-Amin High School in Sorong
Authors: Tjarles Lay , Gunaisah Endang , Poltak Hendra , Komboe Anjas AS , Muhfizar Muhfizar
Published: February 2022

Safety of life at sea is highly prioritized to reduce the impact of losses on humans, ships and their cargo. The purpose of this community service implementation is to provide an overview and information about marine life in the form of rules about basic safety and skills to use basic safety equipment on ships. There were 29 socialization participants who were teachers of the natural tadabbur group of SMA Muhammadiya Al-Amin Sorong. The results of the participant's observations can follow and demonstrate the practice that was done.
PRODUKSI IKAN BANDENG TANPA DURI (Chanos chanos) BAGI MASYARAKAT DESA TAMANGAPA KABUPATEN PANGKEP PROPINSI SULAWESI SELATAN
Authors: Wamnebo Muhammad Ikhsan , Kasmawati Kasmawati
Published: February 2022

Permasalahan yang dialami masyarakat petambak ikan bandeng (Chanos chanos) di Desa Tamangapa, Kabupaten Pangkep adalah rendahnya harga jual ikan bandeng yang murah. Ini disebabkan karena ikan bandeng memiliki duri yang sangat banyak sehingga masyarakat kurang menyukai, padahal ikan bandeng memiliki nilai nutrisi yang baik terutama asam lemak tak jenuh omega-3 (ω3) mencapai 14,2% dan kandungan protein 20%. Kegiatan ini bertujuan untuk meningkatkan nilai jual ikan bandeng melalui kegiatan pelatihan mencabut duri ikan bandeng. Metode yang digunakan adalah pelatihan dan pendampingan mencabut duri ikan bandeng yang diikuti oleh ibu-ibu PKK, pegawai kantor desa, dan masyarakat setempat yang memiliki keinginan untuk berwirausaha. Hasilnya adalah ikan bandeng tanpa duri dapat dijual ke konsumen atau diolah menjadi produk seperti nugget, bakso, bandeng krispi. Kesimpulannya adalah ikan bandeng tanpa duri memiliki peluang bisnis yang menguntungkan dengan kenaikan harga jual, sehingga dapat meningkatkan pendapatan masyarakat petambak ikan di Desa Tamangapa Kabupaten Pangkep.
Performa Sperma Ikan Nilem (Osteochillus vittatus) Pasca Penyimpanan Terhadap Persentase Fertilitas dan Daya Tetas Telur
Authors: Wisudyanti Dewi , Emyliana Listiowati  , Anandita Ekasanti  , Dewi Nugrayani
Published: February 2022

Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh penambahan madu dengan konsentrasi berbeda pada bahan ekstender terhadap persentase fertilitas dan daya tetas telur ikan nilem (Osteochillus vittatus) yang dibuahi sperma hasil penyimpanan. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial 2 x 4 dengan 4 ulangan. Jenis ekstender (Faktor A) terdiri atas susu kuning telur dan air kelapa, sedangkan konsentrasi madu (Faktor B) yang digunakan yaitu 0%, 3%, 6%, dan 9%. Pengamatan persentase fertilitas dan daya tetas telur dilakukan untuk mengetahui performa sperma ikan nilem. Analisis data dilakukan secara statistik menggunakan analisis statistic variansi (ANOVA) dan di uji lanjut menggunakan uji jarak berganda (Duncan). Analisis data menunjukkan adanya interaksi antara kedua faktor yang memberi pengaruh nyata terhadap persentase fertilitas dan daya tetas telur. Kombinasi ekstender susu dan kuning telur dengan konsentrasi madu 6% memberikan hasil tertinggi yaitu 61,75% untuk fertilitas dan 23,08% untuk daya tetas sementara, untuk persentase fertilitas terendah sebesar 4% pada ekstender air kelapa tanpa madu dan persentase daya tetas terendah pada ekstender susu kuning telur tanpa madu sebesar 7,51%.
Karakteristik dan Kepatuhan Unit Penangkapan Ikan Pukat Labuh di Tanjungbalai Asahan
Authors: Nababan Benardo , Hutapea Roma Yuli
Published: February 2022

Kajian terhadap pukat labuh di Tanjungbalai bertujuan untuk mengetahui karakteristik dan tingkat kepatuhannya terhadap aturan yang berlaku. Kajian karakteristik dilakukan dengan mengikuti operasi penangkapan ikan di laut pada tahun 2018, sedangkan kepatuhan dianalisis dari data hasil pengawasan Satuan PSDKP Asahan tahun 2019 dan 2020. Pukat labuh di Tanjungbalai Asahan termasuk dalam klasifikasi perangkap yang dipasang menetap di perairan dalam kurun waktu tertentu, memanfaatkan arus pasang surut perairan, dan  menggunakan 2 (dua) unit jangkar besar sebagai penahan agar pukat tidak hanyut terbawa arus. Hasil tangkapan utama adalah ikan teri, sedangkan hasil tangkapan sampingan adalah cumi-cumi, gulama, bawal dan layur. Kepatuhan pukat labuh ditinjau dari 6 (enam) aspek, yaitu : (1) kelengkapan surat izin penangkapan ikan (SIPI), (2) kesesuaian spesifikasi alat tangkap, (3) kesesuaian daerah penangkapan, (4) kesesuaian pelabuhan pangkalan, (5) kelengkapan Surat Laik Operasi (SLO), dan (6) kelengkapan Surat Persetujuan Berlayar (SPB). Kepatuhan nelayan pukat labuh di Tanjungbalai Asahan sangat baik karena telah mengikuti semua ketentuan yang berlaku.
Penerapan Teknologi Akuaponik Teknik Media Bed: Dasar Penentuan Rasio Kepadatan Ikan yang Ideal
Authors: Joni Johanda Putra  , Taufik Budhi Pramono  , Agung Cahyo Setyawan
Published: February 2022

Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan kepadatan ikan dan volume media terhadap pertumbuhan dan kelangsungan hidup ikan nila (Oreochromis niloticus) serta menentukan rasio kepadatan efektif pada pembudidayaan akuaponik teknik media bed. Penelitian ini dilakukan pengukuran parameter diantaranya adalah laju pertumbuhan spesifik ikan, rasio konversi pakan yang diberikan, kualitas air serta tingkat kelangsungan hidup (survival rate). Rancangan percobaan yang digunakan pada penelitian ini yaitu dengan rancangan acak lengkap (RAL) dengan 4 perlakuan (rasio tebar ikan 1 ekor/L media bed; 2 ekor/L media bed; 3 ekor/L media bed; dan 4 ekor/L media bed) serta dilakukan tiga kali pengulangan pada penelitian ini. Hasil penelitian menunjukan bahwa rata-rata panjang ikan akhir antara 6,5 – 9,5 cm, dan rata-rata berat ikan akhir kisaran 5 – 17 gram. Nilai kepadatan optimum dan produktivitas ikan terbaik dari penelitian ini yaitu pada P4 dengan padat tebar 20 ekor per liter air dengan hasil yang signifikan.
Analisis Margin Pemasaran Komoditas Tambak Air Payau Skala Tradisional Plus di Pasuruan, Jawa Timur
Authors: Nasikh Nasikh , Sumarsono Hadi , Sayono Joko , Ghazali Mohd Al-ikhsan , Yunani Yunani , Jayanti Lely
Published: February 2022

Kabupaten Pasuruan merupakan salah satu produsen ikan budi daya tambak air payau skala tradisional plus terbesar di Jawa Timur, Indonesia. Sistem distribusi komoditas tambak tradisional plus yang menguntungkan sangat menentukan keberhasilan petambak dalam meningkatkan pendapatannya. Tujuan penelitian untuk mengetahui pola pemasaran komoditas tambak tradisional plus dan mengetahui margin pemasaran komoditas tambak tradisional plus di Kecamatan Bangil, Kabupaten Pasuruan. Penelitian ini dilakukan kurang lebih selama tiga tahun, antara bulan Mei 2017 sampai dengan Agustus 2020. Pengambilan sampel pada penelitian ini melalui teknik snowball sampling, yaitu sebanyak 35 petambak, 8 pedagang pengumpul, 7 pedagang besar, dan 5 pedagang pengecer. Data dianalisis secara deskriptif terhadap pola margin pemasaran dan kinerja pasar. Hasil penelitian menunjukkan ada lima pola margin pemasaran komoditas tambak tradisional plus, dan pola margin pemasaran yang ketiga dinilai efisien, karena jalur pemasarannya cukup pendek dan tidak mengurangi pendapatan petambak sehingga penerimaan pendapatan petambak lebih menguntungkan dibanding dengan pola margin pemasaran lainnya. Untuk itu, diperlukan kerja sama antara pemerintah daerah Kabupaten Pasuruan, petambak, dan pedagang agar sistem pemasaran ini lebih efisien sehingga pendapatan petambak tidak menurun.Title: Marketing Margin Analysis of Traditional Plus Scale Brackish-Water Commodities in Pasuruan, East JavaPasuruan Regency is a lowland fish farming area and one of the greatest traditional plus fish farming in East Java, Indonesia. The profitable distribution system of traditional plus pond affect the successful of farmers to improve their income. This research aimed to formulate the marketing model and margin of traditional plus pond commodity in order to improve the welfare of fish farmers in Bangil Sub-District, Pasuruan Regency. This research was conducted for three years, from May 2017 until August 2020. Snowball sampling is selected to choose participants, they consisted of 35 fish farmers, 8 collector traders, 7 large traders, and 5 retailers. Data were analyzed descriptively to describe the marketing margin model and market performance. The results showed that there were five models of marketing margin of traditional plus ponds, and the third model would be the most efficient model because of its relatively short marketing path and no farmers’ income were reduced. Therefore, the model offered more profitable income for the fish farmers than the other model. In addition, it is necessary to corporate among regional government, fish farmers, and traders for more efficient marketing system, and to avoid the decrease of fish farmers’ income.
Pemanfaatan Benih Bening Lobster (BBL) untuk Kegiatan Ekonomi Masyarakat Pesisir Banyuwangi
Authors: Huda, M. Si Hakim Miftakhul , Wijaya Rizki Aprilian , Suryawati Siti Hajar , Wahyudin Rudi Alek , Koeshendrajana Sonny
Published: February 2022

Permintaan benih bening lobster (BBL) untuk keperluan budi daya baik ekspor maupun dalam negeri masih terus meningkat. Kabupaten Banyuwangi merupakan salah satu penghasil BBL di Indonesia. Penelitian ini bertujuan menganalisis karakteristik sosial ekonomi nelayan BBL dan permasalahan usaha penangkapan BBL serta mengkaji peluang pengembangan pemanfaatan BBL di Banyuwangi. Metode pengumpulan data dilakukan melalui survei pada tahun 2020 di Kabupaten Banyuwangi. Analisis data dilakukan secara deskriptif menjelaskan karakteristik sosial ekonomi dan permasalahan dalam usaha penangkapan BBL. Hasil penelitian menunjukkan bahwa nelayan BBL pada umumnya berpendidikan rendah dan mempunyai sumber mata pencaharian selain usaha penangkapan BBL. Usaha penangkapan BBL memberikan nilai manfaat ekonomi yang tinggi bagi nelayan. Saat ini, kebijakan larangan ekspor BBL berakibat pada terbatasnya pasar BBL hasil tangkapan. Pengembangan budi daya lobster secara masif diharapkan dapat mendorong pengoptimalan BBL sehingga memberikan nilai tambah yang dapat dinikmati oleh nelayan BBL maupun pembudi daya dan pelaku usaha terkait lainnya. Selanjutnya, kebijakan pemanfaatan BBL yang berkelanjutan dapat dilakukan dengan membatasi jumlah nelayan BBL yang dapat melakukan penangkapan. Sebagai salah satu bentuk manajemen pengelolaan sumber daya perikanan lobster, kebijakan open closed season penangkapan BBL bisa menjadi salah satu opsi kebijakan yang dilakukan, terutama pada saat produksi BBL rendah.Title: Utilization of Puerulus Seed for Economic Activity of Banyuwangi Coastal CommunitiesThe demand for puerulus (BBL) for export and domestic cultivation increases. Banyuwangi Regency is one of the BBL producers in Indonesia. This research aims to analyze the socio-economic characteristics of BBL fishers, analyze the problems of BBL fishing efforts, and assess development opportunities for the use of BBL in Banyuwangi. The data collection method was done through surveys conducted during 2020 in Banyuwangi Regency. Data analysis was done descriptively explaining socio-economic characteristics and issues to capture BBL. The results showed that BBL fishers are generally poorly educated and have a source of livelihood and BBL fishing efforts. Therefore, BBL capture efforts provide high economic benefit value for fishers. Currently, the BBL export ban policy results in limited BBL catchment markets. Thus, the development of massive lobster cultivation is expected to encourage BBL optimization to provide added value that can be enjoyed by BBL fishermen as well as farmers and other related business actors. Furthermore, sustainable BBL utilization policies can be done by limiting the number of BBL fishers who can make arrests. As a form of lobster fishery resource management, the BBL’s open-closed season fishing policy can be one of the policy options carried out, especially when BBL production is low.
ANALISIS FINANSIAL PERIKANAN TUNA LONG LINE DI PERAIRAN SAMUDERA HINDIA SEBELAH SELATAN JAWA (Studi Kasus KM. Trans Bahari 3)
Authors: Suharyanto Suharyanto , Sutono Dian , Ferdinant Agung , Luhulima Martin Yermias
Published: February 2022

ABSTRAKPenelitian dilaksanakan pada periode Maret - Mei 2020, berlokasi di kapal longliner yaitu Kapal Motor (KM) Trans Bahari 3 yang melakukan operasi penangkapan di Wilayah Pengelolaan Perikanan Republik Indonesia (WPP-RI) 573, Pelabuhan Perikanan Samudera (PPS) Cilacap, Jawa Tengah.  Penelitian ini bertujuan untuk menganalisis tingkat kelayakan usaha tuna longline ditinjau dari laju pancing (hook rate) dan kelayakan finansial. Selain metode survey di kapal juga dilakukan wawancara ke petugas di darat. Data yang dikumpulkan mencakup hasil tangkapan setiap setting dan hauling selama satu trip. Data juga berasal dari investasi yang ditanamkan, nilai-nilai penyusutan kapal dan peralatan, modal tetap, dan modal tidak tetap, serta hasil tangkapan beserta nilai penjualan. Hasil selama penelitian diperoleh nilai laju pancing dari 24 kali setting dan hauling rata-rata 0,54 (<2,00). Hasil indikator finansial B/C ratio sebesar 1,12; nilai Payback Periode (PP) 5,8 tahun dan Net Present Value (NPV) bernilai positif. Tingkat kelayakan usaha ditinjau dari analisis laju pancing dinyatakan kurang baik karena nilainya di bawah 2,00. Kemudian ditinjau dari analisis finansial B/C ratio menguntungkan namun sangat tipis karena mendekati angka 1 menuju titik impas. Berdasarkan alisisis PP, usaha layak untuk dikembangkan karena nilai PP <10 tahun dan berdasarkan NPV usaha dinyatakan layak karena bernilai positif (Rp2.156.002.331).ABSTRACTThe research was carried out in the period March - May 2020, located on a longliner ship, namely the Trans Bahari 3 Motor Ship (KM) which carried out a fishing operation in the Indonesian Fisheries Management Area (WPP-RI) 573, Ocean Fishery Port (PPS) Cilacap, Central Java. This study aims to analyze the feasibility level of longline tuna business in terms of hook rate and financial feasibility. Apart from the survey method on the ship, interviews were also carried out to officers on the ground. The data collected includes the catch of each setting and hauling during one trip. The data also comes from invested investments, depreciation values for vessels and equipment, fixed capital and non-fixed capital, as well as catch and sales value. The results during the study obtained the value of fishing rods from 24 times of setting and hauling an average of 0.54 (<2.00). The result of the financial indicator B / C ratio is 1.12, the Payback Period (PP) value is 5.8 years and the Net Present Value (NPV) is positive. The level of business feasibility in terms of the fishing rate analysis is stated to be not good because the value is below 2.00. Then viewed from the financial analysis the B / C ratio is profitable but very thin because it is close to number 1 towards the break-even point. Based on the PP analysis, the business is feasible to develop because the PP value is <10 years and based on the NPV the business is declared feasible because it is positive (Rp2,156,002,331).
ELEMENTAL ANALYSIS OF DISPERSED EMISSION PRODUCTS OF AN AIRCRAFT ENGINE FOR DIAGNOSING ITS PARTS EROSIVE WEAR
Authors:   JSC “UEC-Aviadvigatel”, Kozlov Aleksandr , Mukhutdinov Farit ,   JSC “UEC-Aviadvigatel”, Sazhenkov Aleksei ,   JSC “UEC-Aviadvigatel”
Published: February 2022

The study of advanced diagnostic methods and tools for aircraft engines shows that spectral elemental analysis of aerosol emission products has recently become quite widespread in the engine maintenance programs of foreign manufacturers for detecting the turbomachinery parts erosive wear. To determine the elemental composition of aerosols at the gas turbine engine (GTE) outlet, opto-emission and mass spectrometric approaches have been used in various implementations. X-ray photoelectron spectroscopy and inductively coupled plasma mass spectrometry (ICP-MS) are recognized as the most informative and accessible laboratory methods. The most common sampling method is filtration with Teflon analytical membranes. Artificial intelligence technologies are used worldwide to identify and localize the source of the elements flow (a potential area of the GTE parts erosive wear). It has been found that the main problems of applying a multi-element analysis are associated with the sampling procedure, with the potential simultaneous element flow from several engine parts having a similar chemical composition; as well as with the variability of the “background” atmospheric aerosol composition, which is an unavoidable component of atmospheric air, especially in ground-level conditions. The article also presents the first results of the elemental analysis of aerosol particle emission samples from a modern Russian aircraft engine using the X-ray fluorescence method.
ON IMPROVING THE METHODOLOGY FOR CALCULATING AIRCRAFT ROLLING BEARINGS OF THE GTE
Authors:   Perm National Research Polytechnic University, Belomyttsev Oleg
Published: February 2022

Modern methods of calculating rolling bearings in all branches of technology are based on the Lunberg – Palgrem formula, proposed more than half a century ago, L = (C/P)m, which is now overgrown with various correction factors that take into account reliability, material quality, oil viscosity, oil film thickness, the presence of particles in the oil, bearing accuracy. The methods are accompanied by a number of limitations, in particular the requirement that there is no thermal expansion in the bearing, which usually cannot be performed in a gas turbine engine, while deformations of the shaft and housing, which are hollow and tubular, are not taken into account for the distribution of load over rolling elements and stresses in contact. Global bearing manufacturers SKF and FAG have not yet offered anything new, but FAG has made an attempt to take into account the impact of the endurance limit on the calculated durability. Currently, a number of organizations in the Russian Federation are testing bearings, full-scale bearing parts and samples made of various aviation steels in order to obtain fatigue curves and determine the endurance limit. This will improve the calculation methodology of aircraft bearings with a durability of more than 25-30 thousand hours. It's time to start developing a new calculation methodology – to calculate the durability of stresses, as is done when calculating all parts in mechanical engineering. In this case, it is much more accurate to take into account the influence of various factors – the shape of the rollers, the treadmills of the rings, the external load distribution over the rolling bodies, taking into account the deformations of the bearing assembly parts, and other factors determined theoretically and experimentally.
PROSPECTS FOR DEVELOPMENT OF FLIGHT CONTROL SURFACES ACTUATORS OF CIVIL AIRCRAFT
Authors:   RnD center Technodinamika, Kuderko Dmitry , Tselischev Vladimir ,   Ufa State Aviation Technical University, Tselischev Dmitry ,   Ufa State Aviation Technical University
Published: February 2022

The main problems arising in the development of systems of actuators with remote control for promising aircraft are considered. The tasks of the fly-by-wire control system for actuators of the aircraft are determined. The directions of development of improving the mass-dimensional and dynamic characteristics, improving the design and layout of circuit solutions, control systems and improving operational characteristics, which provide an increase in the quality and safety of the aircraft operation, are given. A concept for the development of actuators for the control surfaces of a passenger aircraft has been formulated, including the main directions of scientific and experimental work carried out by technical design companies, scientific organizations and manufacturers of hydraulic units both in Russia and abroad. The improvement of weight and size characteristics is possible due to the energy perfection of actuators and ensuring synchronization of their operation, the use of autonomous actuator circuits, and pumping stations of variable capacity. The issues of improving the dynamic characteristics of actuators involve the problems of increasing speed, accuracy, stability, and controllability. When considering promising design and layout schemes of actuators, the features of the use of electrohydrostatic actuators, integrated layout, electrohydraulic control and the advantage of an autonomous electrohydraulic actuator are shown. The section devoted to control systems characterizes fly-by-wire system, the use of Load Sensing (LS)-regulation of volumetric hydraulic machines, issues of performance management and integration with an intelligent computer control system. When considering the performance characteristics of perspective actuators, the possibilities of reducing heat losses, problems of increasing reliability and resource, and features of bench testing are highlighted. New directions for the development of actuators are considered, such as the use of fiber-optic control wiring instead of electric, as well as the use of plasma technologies for control surfaces.
ASSESSMENT OF THE LOAD-BEARING CAPACITY OF A COMPOSITE AIRCRAFT STRUCTURE CONSISTING OF A METAL-POLYMER COMPOSITE MATERIAL AND A CLASSICAL METAL
Authors:   Moscow Aviation Institute (National Research University), Pechenyuk Valery , Popov Yuri ,   Moscow Aviation Institute (National Research University), Moiseeva Irina ,   MTRC AF «AFA»
Published: February 2022

The requirements for modern models of aviation equipment are constantly increasing, as a result of which it is necessary to look for new ways to solve the assigned engineering tasks through the use of new materials, new principles of manufacturing and assembly, as well as through an extraordinary approach to the design of the design of modern aircraft products. In this paper, the engineering methodology of power calculation and design of composite aircraft structures combining metal-polymer composite materials and metal materials is considered. As a composite structure under study, a fragment of an aircraft wing panel is considered, including a stringer made of a traditional structural material (metal) and a metal-polymer composite material skin attached to it. Metal- polymer composite material is a layered material consisting of metal sheets and layers of polymer composite material. Previously, in [1], the characteristics of the stress-strain state (SSS) of a single metal-polymer composite material and each layer in its package were investigated. In this paper, analytical and graphical dependences of the stress state of the elements of a composite structure on their ultimate deformations are obtained. The parameters of the composite panel of the wing, working on tension, and their effect on the stress-strain state, safety margin and load-bearing capacity are investigated. The obtained graphical dependences can be used for a preliminary assessment of the strength of an element of a composite structure at the stage of working out the design concept of an aircraft airframe assembly using a metal-polymer material.
Only Biomedicines-Meals (BM) Act as the ‘Preventive-Immunity-Booster-Community-Vaccine (PIBCV)’ Against ‘Omicron’ Enriching Global-Public-Health Forestry-Agriculture-Environment-Biodiversity-Wildlife-Conservation-Medical-Research-Science-Technology-Communication-Applications (GPHFAEBWCMRSTCA)?
Authors: Subhas Chandra Datta , Ranjan Mukherjee
Published: February 2022

Introduction: The new-easily-fast-spreading-variant of SARS-CoV-2, B.1.1.529, is designated as a ‘Variant-of-Concern (VOC)’, the ‘Omicron’, now-suddenly-rise-of-more-transmissible-surprising-form, the “Sister”, causing detrimental-COVID-19 that impacts on public health, especially breakthrough severity-of-illness due-to-reinfections-or-infections in fully-vaccinated-people, causing more-severe-illness-or-death than other-variants also. And the COVID-scientists are trying the actual reasons regarding the quick speedy transmission of the variant, intensity, and ability to evade vaccines. So, it will require COVID-vaccine-booster-doses to tackle the ‘Omicron’ as early-as-possible, and the main objectives of the present study are to find out the most suitable ‘Preventive-Immunity-Booster-Community-Biomedicines-Vaccine (PIBCBV)’. Methods: The mixing of fresh weeds-vegetables-fruits-spices-(WVFS); amaranth-okra-cowpea-cucumber-ginger-turmeric-(AOCCGT)@(10g+25g+25g+35g+4g+1g=100g) respectively are prepared the 100g (a cup) of fresh-biomedicines-booster-meal-(BMBM)/ candidate (one-year to ninety-nine years-age-groups), taking-orally-in-different-forms @ twice-or-thrice/day (with any-kinds-of-nutritious-food) against naturally-occurring-coronavirus-2 infections-or-reinfections 45-days before COVID-19-infections, and in case-of-treatment, the dose may be increased depending on the intensity-of-diseases. Results: The present-Booster-Combination-(BC) of Weeds-Vegetables-Fruits-Spices-(WVFS), the Biomedicines-Booster-Meals-(BMBM) have revealed-again that Preventive-Booster-Community-Biomedicines (PBCBM), are very-much-effective in controlling-diseases-by-boosting-natural-immunity-against coronavirus-2 with no side effects among the student’s community.