bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimating the economic value of hydropeaking externalities in regulated rivers
Authors: Ruokamo Enni , Juutinen Artti , Ashraf Faisal , Haghighi Ali Torabi , Hellsten Seppo , Huuki Hannu , Karhinen Santtu , Kopsakangas-Savolainen Maria , Marttila Hannu , Pongracz Eva , Romakkaniemi Atso , Vermaat Jan E.
Published: October 2022

Hydropower is a flexible form of electricity generation providing both baseload and balancing power to accommodate intermittent renewables in the energy mix. However, hydropower also generates various externalities. This study investigates individuals’ preferences for policies aiming to reduce short-term regulations (i.e., hydropeaking in regulated rivers) while accounting for associated externalities with a discrete choice experiment. This is the first valuation study focusing on hydropeaking that considers both negative and positive externalities. The results imply that most individuals prefer stronger restrictions on short-term regulations to mitigate local environmental impacts. Individuals especially value improvements in recreational use, fish stocks, and the ecological state. On the other hand, potential increases in CO2 emissions are linked with a clear disutility. The estimated benefits obtained from an improved state of the river environment due to such restrictions probably exceed the disutility caused by increased CO2 emissions. The results also reveal unobserved preference heterogeneity among individuals, which should be accounted for in the willingness-to-pay (WTP) estimation using a model specification with correlated utility coefficients. Overall, the findings can inform policy-makers and environmental managers on the economic value of hydropeaking externalities and further guide the sustainable management of rivers regulated for hydropower generation.
Spatial Spillover Effects of Agricultural Agglomeration on Agricultural Non-Point Source Pollution in the Yangtze River Basin of China
Authors: Zhu Yangyang , Yu Qiuyue , Huang Dayong
Published: October 2022

Studying the impact of agricultural agglomeration (AGG) on agricultural non-point source pollution (NPS) is important for reconciling the resource environment and agricultural economic growth.The paper is based on the panel data of 89 prefecture-level cities in the main agricultural production areas of the Yangtze River basin from 2000 to 2020, measuring the level of AGG and NPS emissions in each area and employing spatial analysis techniques and spatial econometric models to empirically investigate the spatial and temporal distribution characteristics and spatial spillover effects of AGG and NPS.The results show that there are differences in temporal changes, spatial distribution, spatial association and spatial evolutionary trends between AGG and agricultural surface pollution, and the changes in the upper, middle and lower basin show non-equilibrium characteristics;NPS has a positive spatial spillover effect, and AGG has a positive direct impact effect and a negative spatial spillover effect on NPS, and there are a differences in the direct impact effect and spatial spillover effect between upper, middle and lower basin;Agricultural production conditions and the share of livestock and poultry industry have a positive direct effect and a negative spatial spillover effect on NPS, while agricultural population size has a positive direct effect and spatial spillover effect;The urbanization rate exacerbates the emission of NPS, while the industrial structure reduces the emission of NPS, but neither has a spatial spillover effect.The fndings of this paper cannot only provide a theoretical basis and practice reference for NPS and AGG evaluation but also beneft more focused policy-making of the Green and sustainable development of agriculture in Yangtze River Basin.
Socio-economic factors strongly determine megafauna biomass in African savanna protected areas
Authors: Thornley Reece , Buitenwerf Robert , Vogel Susanne , Pearcy Ashley , Smit Izak , Hempson Gareth , Gaylard Angela , Chala Desalegn , Svenning Jens-Christian
Published: October 2022

The persistence of African megafauna (herbivores >10 kg) in savannas is at risk from anthropogenic pressures including land–use change, bush–meat hunting and poaching. The mitigation of these risks, while still ensuring socio-economic improvement, is a crucial challenge to megafauna conservation and sustainable development across Africa. Protected areas are designed to diminish these risks, yet evidence from individual protected areas and countries suggests that megafauna populations within protected areas are increasingly affected by negative human influence. However, on the continental scale, it remains unclear to what degree megafauna in African savanna protected areas are affected by human influences relative to natural drivers. We quantified the relative influence of human and natural drivers on biomass from 47 megafauna species, estimated from aerial surveys across 296 survey areas in 12 African countries, spanning 550,452 km2 of protected savanna. The Human Development Index (HDI) emerged as the strongest predictor of megafauna biomass within protected areas across Africa, exceeding the importance of the main natural drivers (natural savanna habitat, water availability) and other human–related drivers (roads, environmental governance, and livestock density). Importantly, our findings show that megafauna biomass is suppressed to <= 3600 kg km-2 at low HDI (0.50), compared to 6800 kg km-2 at higher HDI (> 0.50). This indicates that improving socioeconomic conditions surrounding savanna protected areas could substantially enhance megafauna conservation across the continent, while addressing numerous sustainable development goals for local communities.
Milling Force Prediction of Inclined Rib with Low Rigidity in Milling Process of Hollow Thin-Walled Structural Parts
Authors: Zhang Shengfang , Ma Jiaheng , Wang Shuai , Wang Ziguang , Ma Fujian , Sha Zhihua
Published: October 2022

In order to improve the prediction accuracy of low rigidity inclined rib milling force model in the milling process of hollow thin-walled structural parts, the static deformation of low rigidity inclined rib was solved by means of numerical analysis and finite element simulation method, moreover, the deformation mixed prediction model was established by combining General Regression Neural Network with Fruit Fly Optimization Algorithm and Cross Validation Algorithm to efficiently predict the dynamic deformation of low rigidity inclined rib under different parameters. Thereafter, based on this model, the dynamic feed per tooth solving model was established to predict the dynamic milling force, and it was verified by experiments. The results show that under the processing conditions of 6000r/min, 0.14mm/z and 4mm cutting width, the theoretical values of the maximum milling forces in X, Y, Z directions at the right diagonal rib position are 361N, 788N, 229N respectively, and the experimental values are 398N, 802N, 218N respectively. Under the processing conditions of 7000r/min, 0.14mm/z and 3.5mm cutting width, the theoretical values of the maximum milling forces in X, Y, Z directions at the right diagonal rib position are 361N, 788N, 229N respectively, and the experimental values are 398N, 802N, 218N respectively. The increase of cutting width leads to the increase of Y-direction force, besides, the increase of feed speed will lead to the increase of X-direction forces and Z-direction forces. The range of X-direction prediction error rate is 8.45% − 16.15%, Y-direction prediction error rate is 1.50% − 4.85%, Z-direction prediction error rate is 10.5% − 15.65%, and the milling force prediction error is kept below 16%.
Early Changes in Clinical and Laboratory Parameters in Patients Died of COVID-19
Authors: Bakhtiyarova K. S. , Papoyan A. O. , Alekseev A. V. , Vishnyakov D. S. , Grazhdankin A. A. , Gilyazova I. R. , Nasibullina A. Kh. , Kislitsyna M. V. , Vakhitova A. A. , Zolotukhin K. N. , Kabirov I. R. , Pavlov V. N.
Published: October 2022

261,435,768 COVID-19 infections were detected worldwide, of them 5,207,634 deaths were registered. Identifying markers of the patient severity early in the course of the disease can facilitate the assessment of the risk of adverse outcome.

The objective: To compare values of laboratory parameters and their changes during treatment of patients with a complicated course of COVID-19 infection.

Subjects and Methods. 56 patients were included in the study, all of them were hospitalized to COVID Hospital of the Clinic of Bashkir State Medical University, Russian Ministry of Health, from September 30, 2021 to November 15, 2021, and their complicated course of the disease necessitated transfer to the intensive care unit (ICU). The laboratory evaluation included the following: a general blood and urine counts, blood chemistry including urea and creatinine, liver transaminases, and blood coagulogram (prothrombin time (PTT), prothrombin index (PTI), thrombin time, fibrinogen, and blood clotting time).

Results. In the group of patients with a fatal outcome on the day of transfer to ICU, lymphocytopenia, eosinopenia, elevated values of creatinine, total bilirubin, transaminases, C-reactive protein, D-dimer, and ferritin were noted. Also on this day, microscopic hematuria, proteinuria and cylindruria were detected in the urine tests of most patients in this group during treatment.

Conclusion. Critical deviations in the results of hematological and biochemical tests were revealed. Particular attention should be paid to such parameters as the level of erythrocytes, lymphocytes, eosinophils, glucose, urea, creatinine, total bilirubin, aspartate aminotransferase, alanine aminotransferase, creatine kinase, C-reactive protein, D-dimer, and ferritin.
A LITERATURE REVIEW ON QURANIC LINGUISTICS AS A PSYCHOSPIRITUAL THERAPY MEDIUM
Authors:   Research Centre for Arabic Language and Islamic Civilization, Faculty of Islamic Studies, UniversitiKebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia., Azman Wan Mohammad Wan , Zailani Hj Ahmad Suhaila ,   Research Centre for Arabic Language and Islamic Civilization, Faculty of Islamic Studies, UniversitiKebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia., Abu Bakar Kaseh ,   Research Centre for Arabic Language and Islamic Civilization, Faculty of Islamic Studies, UniversitiKebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
Published: October 2022

Quranic therapy is an approach practiced by individuals who suffer from psychospiritual problems to self-heal. Al-Quran possesses spiritual values which can assist in treatment. This approach indirectly involves linguistic elements as the therapeutic basic medium by engaging in recovery and treatment activities such as reading, recitation and teaching the meaning of al-Quran. However, non-holistic implementation of linguistic element in Quranic therapy practice reduced the effect of patients psychological and spiritual recovery due to the lack of understanding of and appreciation to the messages of al-Quran. Therefore, this study is aimed at examining the relation of linguistic elements to the Quranic message being conveyed and revealing the importance of al-Quran as a psychospiritual therapy medium. This study is a qualitative research work using content and thematic analysis. Content analysis was classified according to themes based on the linguistic aspects of al-Quran (phonology, morphology and semantics). It was found that phonology (sound) reinforced appreciation of the message of al-Quran through mental effects of Al-Quran reciter and listener. Morphology (word structure) of al-Quran was also identified as the foundation to the meaning or interpretation of al-Quran. Meanwhile, comprehension and appreciation of all messages being conveyed in al-Quran require a mastery in semantics (meaning) because the meaning of al-Quran is influenced by various factors. In short, the linguistic aspects are closely linked in influencing the message being delivered besides having the role of reinforcing the understanding and appreciation of content of al-Quran that enables patient recovery from the psychospiritual problems. This study carries an implication towards the role of the Quranic language in complementing psychospiritual therapy.
HYPERPROLACTINEMIA AND ITS COMPARISION WITH HYPOTHYROIDISM IN INFERTILE WOMEN
Authors:   Biochemist., a Srilalitha , Kumar Ravi ,   Laboratory Director, Pathologist., Ravi Kumar Vani ,   Senior Pathologist and Vice President., b Santosh ,   Senior Pathologist.
Published: October 2022

Introduction :Human infertility is a complex global health problem. It has multiple social consequences which are especially profound for thyroid hormones in infertility with the aim of determining the degree of association of thyroid hormones with hyper prolactinemia in our population. Materials and method:In this study, we investigated women who were casesof infertility, who attended the Biochemistry Department, RV Metropolis, Bangalore, India, for hormonal evaluations. Thirty fertile women with similar ages were enrolled as the controls. The status of the thyroid dysfunction and the levels of serum prolactin were reviewed in infertile women and in the controls. The serum Prolactin and the thyroid stimulating hormone levels were measured by using Roche reagents in COBAS 8000 Instruments. Results: In our study, the serum prolactin levels in the infertile group were found to be high as compared to those in the control group and they were highly significant (p<0.0001). The serum TSH levels in the infertile group were found to be high, as compared to those of control group and they were highly significant (p<0.0001). Conclusion: It is therefore Concluded that hyperprolactinemia with thyroid dysfunction may be major contributory hormonal factor in infertility among infertile women and as such , estimation of prolactin and thyroid stimulating hormone should be included in the work up for infertile especially those with hyperprolactinemia.
Implementasi kebijakan keolahragaan dan peran pemangku kepentingan dalam peningkatan prestasi atlet
Authors: Sirait Juniar , Noer Khaerul Umam
Published: October 2022

Keberhasilan dalam pencapaian peningkatan prestasi atlet tidak dapat dilepaskan dari kebijakan keolahragaan di suatu daerah. Tulisan ini berfokus pada bagaimana implementasi kebijakan keolahragaan dan bagaimana peran para pemangku kepentingan dalam upaya peningkatan prestasi atlet di Kota Tangerang Selatan. Dengan menggunakan metode penelitian kualitatif melalui pengamatan, wawancara dan diskusi kelompok terpumpun, ditemukan bahwa implementasi kebijakan keolahragaan oleh Dinas Pemuda dan Olahraga dan pemangku kepentingan lain belum berjalan secara optimal, antara lain terlihat dengan minimnya anggaran yang diberikan, kurangnya dukungan dari industri olahraga dalam peningkatan prestasi atlet, sehingga kegiatan keolahragaan belum berhasil secara signifikan terhadap peningkatan atlet-atlet berprestasi, untuk itu perlunya kerjasama dengan beberapa pihak yang terkait dalam peningkatan keolahragaan baik dari pendanaan ataupun sarana dan prasarana olahraga. The implementation of sports policies and the role of stakeholders in improving athlete achievement AbstractThe success in achieving athlete performance improvement cannot be separated from sports policies. This paper focuses on how the implementation of sports policies and how the role of stakeholders in efforts to improve athlete achievement in the City of Tangerang Selatan. By using qualitative research methods through observation, interviews, and group discussion, it was found that the implementation of sports policies by the Department of Youth and Sports and other stakeholders was not running optimally, among others evident from the lack of budget provided, the lack of support from the sports industry in improving performance athletes, so that sporting activities have not been significantly successful in increasing the achievement of athletes, for this reason, the need for cooperation with several parties involved in improving sports both from funding or sports facilities and infrastructure.
Survei aktivitas fisik untuk anak overweight di sekolah dasar
Authors: Primasoni Nawan
Published: October 2022

Masalah overweight selalu meningkat dari tahun ke tahun. Penyakit noninfeksi (Non Communicable Diseases) yang sekarang ini banyak terjadi di negara-negara maju maupun negara-negara sedang berkembang diduga kuat diawali dengan kondisi overweight. Aktivitas fisik memegang peranan penting dalam menjaga komposisi tubuh anak. Aktivitas fisik akan memberikan banyak dampak bagi kesehatan. Overweight di usia muda akan  berpengaruh diusia remaja jika tidak ditanggulangi. Guru Pendidikan jasmani olahraga dan kesehatan  merupakan salah satu  personil yang mempunyai peran penting dalam aktivitas fisik. Tujuan dari penelitian ini adalah untuk mengetahui gambaran kegiatan aktivitas fisik yang dilakukan di sekolah untuk anak-anak overweight. Pengumpulan data dengan cara wawancara para guru pendidikan jasmani olahraga dan kesehatan yang mengajar di sekolah dasar. Berdasarkan hasil penelitian dapat disimpulkan: (1) Pentingnya aktivitas fisik bagi anak-anak sekolah dasar , (2) Aktivitas fisik efisien untuk menurunkan berat badan, (3) Aktivias fisik berdampak pada usia remaja (4) Belum ada panduan aktivitas fisik di sekolah, (5) Perlu dibuat panduan aktivitas fisik untuk anak overweight, (6) Diperlukan aktivitas fisik untuk menurunkan berat badan berbasis bermain. Physical activity survey for overweight children in elementary school AbstractThe problem of overweight always increases from year to year. Non-communicable diseases that currently occur in many developed and developing countries are strongly suspected to begin with overweight conditions. Physical activity plays an important role in maintaining the child's body composition. Physical activity plays an important role in maintaining the child's body composition. Physical activity will have a lot of health impacts. Overweight at a young age will have an effect on adolescence if not addressed. Physical education teachers sports and health is one of the personnel who have an important role in physical activity. The purpose of this study is to find out an overview of physical activity performed in schools for overweight children. Data collection by interviewing physical education teachers of sports and health who teach in elementary schools. Based on the results of the study can be concluded: (1) The importance of physical activity for elementary school children, (2) efficient physical activity to lose weight, (3) Physical activity impacts on adolescence (4) there is no physical activity guide in school, (5) it is necessary to create physical activity guidelines for overweight children, (6) Physical activity is required to lose weight based on play.
PENGEMBANGAN INSTRUMEN TES KETERAMPILAN DASAR BOLATANGAN BAGI MAHASISWA
Authors: Sridadi Sridadi , Utama AM Bandi
Published: October 2022

AbstractThis study aims to: (1) Develop basic skills test instruments handball, (2) Determine the validity and reliability ofestimating basic test instruments handball, (3) Creating a grain basic test instruments handball valid. The researchmethod uses research and development. The subjects were 30 students of sixth semester, PJKR’s student. Datacollection instruments such as observation sheets and questionnaires. The instrument used to obtain informationexpert (expert judgment). Number judge involved three people. Validity determined by content validity and reliabilityof the instrument using the correlation Inter Rater. The results of the correlation coeffcient calculation, it is knownthat the rater score 1 = 0.999, 2 = 0.996 rater score, and score rater 3 = 0.991. The results estimated by the reliabilitycalculation of rxx Alpha coeffcient = 0.994. The result of the development of the form of instrument tests basicskills handball for students produce three (3) types of test are: (1) The test of skills passing the target wall (time:30 seconds), (2) Tests dribbling skills (time: 30 seconds) (3) test skill shot ﬂying perform three shots from threepositions: left, center and right.Key Words : instrument development, handball basic skill, student.AbstrakPenelitian ini bertujuan: (1) Mengembangkan instrumen tes keterampilan dasar bola tangan, (2) Mengetahuivaliditas dan mengestimasi reliabilitas instrumen tes dasar bola tangan, (3) Menciptakan butir-butir instrumentes dasar bola tangan yang valid. Metode penelitian menggunakan research and development. Subjek penelitianadalah 30 mahasiswa semester VI, prodi PJKR FIK UNY. Instrumen pengumpulan data berupa lembar observasidan kuesioner. Instrumen digunakan untuk mendapatkan informasi ahli (expert judgement). Jumlah judge yangterlibat 3 orang. Validitas diketahui dengan validitas isi dan reliabilitas instrumen menggunakan korelasi Inter Rater.Hasil penghitungan koefsien korelasi, diketahui bahwa skor rater 1 = 0,999, skor rater 2 = 0,996, dan skor rater 3= 0,991. Hasil penghitungan reliabilitas diestimasi dengan Koefsien Alpha sebesar rxx =0,994. Hasil pengembanganberupa instrumen tes keterampilan dasar bola tangan bagi mahasiswa menghasilkan 3 (tiga) jenis tes yaitu: (1) Tesketerampilan passing dengan sasaran ke tembok ( waktu: 30 detik), (2) Tes keterampilan dribbling (waktu: 30 detik),(3) Tes keterampilan ﬂyingshot melakukan 3 kali tembakan dari tiga posisi: kiri, tengah, dan kanan.Kata kunci: Pengembangan instrumen, keterampilan dasar, bola tangan, mahasiswa.
Peningkatan kemampuan gerak dasar atletik dengan menggunakan metode sirkuit pada siswa Sekolah Dasar
Authors: Hidayat Arif , Pratama Riyan , Hardiono Bayu
Published: October 2022

Penelitian ini merupakan Penelitian Tindakan Kelas. Penelitian ini menggunakan 2 siklus, dimana masing-masing siklus terdiri atas: 1) perencanaan; 2) pelaksanaan tindakan; 3) pengamatan; 4) refleksi. Penelitian yang dilakukan mencakup 3 ranah yaitu ranah psikomotorik, ranah afektif dan ranah kognitif. Selain itu dilakukan pengamatan terhadap pengelolaan pembelajaran, aktifitas guru dan siswa dalam mengikuti pembelajaran gerak dasar atletik kelas V melalui metode sirkuit di Sekolah Dasar Negeri 07 Tanjung Raja. Hasil penelitian menunjukan bahwa hasil pembelajaran gerak dasar atletik dengan menggunakan metode sirkuit di kelas V Sekolah Dasar Negeri 07 Tanjung Raja Kecamatan Tanjung Raja Kabupaten Ogan Ilir berdampak positif, hal ini terlihat pada hasil ketuntasan belajar yang mengalami peningkatan yaitu pada kegiatan pembelajaran pra siklus sebesar 28% yang kemudian meningkat pada kegiatan siklus 1 sebesar 68% dan meningkat lagi pada kegiatan siklus 2 sebesar 84%. Dapat disimpulkan bahwa dengan metode sirkuit dapat meningkatkan hasil pembelajaran gerak dasar atletik kelas V di Sekolah Dasar Negeri 07 Tanjung Raja Kecamatan Tanjung Raja Kabupaten Ogan Ilir. Increased basic motion capability of athletics using circuit method of elementary school students  AbstractThis research is a classroom action research. This study uses two cycles, wherein each cycle consists of: 1) planning; 2) implementation of the action; 3) observation; 4) reflection. Research carried out includes three domains, namely domains psychomotor, affective and cognitive. Moreover carried out observations of managing learning, the activities of teachers and students in participating in learning basic movements V class athletics through methods circuit at State Elementary School 07 Tanjung Raja. The results showed that the learning outcomes of basic motion athletic using the circuit in a class V State Elementary School 07 Tanjung Raja Village, Tanjung Raja Ogan Ilir positive impact, as seen in the results of mastery learning which has risen on learning activities pre-cycle by 28% which then increases in cycle 1 activity by 68% and increased again in the second cycle of activities by 84%. It can be concluded that the circuit method can improve learning outcomes basic motion athletic class V in the State Elementary School 07 Tanjung Raja Village, Tanjung Raja Ogan Ilir.
Peningkatan karakter kepedulian dan kerjasama dalam pembelajaran mata kuliah atletik
Authors: Triansyah Andika , Atmaja Nur Moh Kusuma , Abdurrochim Muhammad , Bafadal Muhammad Fachrurrozi
Published: October 2022

Penelitian ini bertujuan untuk mengetahui hasil peningkatan karakter kepedulian dan kerjasama melalui cooperative learning tipe Teams Game Tournament pada mata kuliah atletik dan meningkatkan hasil belajar pada mata kuliah atletik. Metode penelitian yang digunakan adalah penelitian tindakan kelas. Data dianalisis dengan teknik deskriptif kualitatif dan kuantitatif. Dari hasil penelitian diperoleh nilai kepedulian dan kerjasama mahasiswa pada mata kuliah atletik meningkat, dengan data nilai kepedulian pra siklus 14 point (37%), siklus I 21 point (55%), dan siklus II 31 point (82%). Nilai kerjasama menunjukan hasil pada pra siklus 13 point (34%), siklus I 21 point (55%) dan siklus II 33 point (87%), hasil positif terjadi karena peningkatan karakter kepedulian dan kerjasama terus menerus dilakukan secara sadar selama proses pembelajaran sehingga menanamkan kebiasaan (habituation) pada mahasiswa. Hasil belajar mahasiswa juga meningkat pada mata kuliah atletik, dengan data kelulusan pada pra siklus 11 orang (29%) dengan nilai rata-rata 50 atau kategori D, siklus I 32 orang (84%) dengan nilai rata-rata 68 atau kategori C dan siklus II 38 orang (100%) dengan nilai rata-rata 92 atau kategori A, hasil belajar yang meningkat terjadi karena lingkungan belajar kondusif dan mahasiswa saling mengingatkan serta menguatkan selama proses belajar, yang merupakan dampak dari peningkatan karakter kepedulian dan kerjasama. Increasing character of caring and cooperation learning athletic subject AbstractThis study aims to determine the results of the increasing of the character of caring and cooperation through cooperative learning type Teams Game Tournament in athletic subjects and improve learning outcomes in athletic subjects. The research method used was classroom action research. Data were analyzed with qualitative and quantitative descriptive techniques. The results showed that the value of student care and cooperation in athletic subjects increased with pre-cycle care scores of 14 points (37%), cycle I 21 points (55%), and cycle II 31 points (82%). The value of cooperation shows the data at the pre cycle 13 points (34%), cycle I 21 points (55%) and cycle II 33 points (87%), positive results occur because the increasing character of care and cooperation is continuously carried out consciously during the learning process so that instilling habits (habituation) in students. While student learning outcomes improved in athletic subjects, with pre-cycle data of 11 people (29%), the average value of 50 or category D, cycle I 32 people (84%), the average value of 68 or category C and the second cycle of 38 people (100%) an average score of 92 or category A, improved learning outcomes occur because the learning environment is conducive and students remind and reinforce each other during the learning process, which is the impact of increasing the character of caring and cooperation.
Fenomena siswa pasif kelas X dalam pembelajaran renang di SMA Negeri 1 Majenang Jawa Tengah
Authors: Handaka Riky Dwi , Ginanjar Afan , Utami Nur Sita
Published: October 2022

Pembelajaran renang merupakan salah satu materi pembelajaran Pendidikan Jasmani Olahraga dan Kesehatan pada jenjang sekolah menengah. Penelitian ini bertujuan untuk mengetahui latar belakang alasan siswa kelas X bersikap pasif dalam pembelajaran renang di SMA N 1 Majenang. Jenis penelitian ini merupakan penelitian deskriptif kualitatif dengan desain fenomenologi. Penentuan subjek dengan teknik purposive sampling. Subjek dalam penelitian ini yaitu 20 siswa pasif kelas X, 6 siswa aktif kelas X, dan 1 Guru PJOK. Teknik pengumpulan data menggunakan observasi, wawancara, dan dokumentasi. Teknik analisis data dengan cara reduksi data, penyajian data, dan penarikan kesimpulan. Keabsahan data menggunakan teknik triangulasi sumber. Hasil penelitian menunjukkan bahwa faktor internal yang mempengaruhi siswa kelas X bersikap pasif dalam pembelajaran renang, yaitu: kemampuan gerak renang kurang baik; Pengalaman buruk; motivasi rendah; kesehatan kurang baik. Berdasarkan faktor internal, terdapat 3 tipe siswa pasif, yaitu: pasif yang sopan; pasif terselubung; pasif disengaja. Faktor eksternal yang mempengaruhi siswa kelas X bersikap pasif dalam pembelajaran renang, yaitu:komunikasi kurang baik; pengaruh teman dan orang tua; tugas lebih dipilih; fasilitas kolam renang kurang mendukung; kurang penggunaan alat bantu. Berdasarkan faktor eksternal, terdapat 1 tipe siswa pasif yaitu pasif yang disengaja. The phenomenon of passive class X students in learning swimming at public SMA 1 Majenang, Central Java AbstractSwimming learning is one of the physical education learning materials for sports and health at the high school level. This study aims to find out the background of the reasons for Grade X students choosing to be passive in swimming learning at SMAN 1 Majenang. This was a qualitative descriptive study with a phenomenological design. The research subjects were selected using the purposive sampling technique. The subjects in this study were 20 passive class X students, 6 active class X students, and 1 PJOK teacher. Data collection techniques using observation, interviews, and documentation. Data analysis techniques by means of data reduction, data presentation, and drawing conclusions. The validity of the data used source triangulation technique. The results showed that the internal factors that influenced class X students to be passive in learning swimming, namely: poor swimming ability; Bad experience; low motivation; ill health. Based on internal factors, there are 3 types of passive students, namely: polite passive; veiled passive; deliberate passivity. External factors that influence class X students to be passive in learning swimming, namely: poor communication; influence of friends and parents; preferred task; swimming pool facilities are less supportive; less use of tools. Based on external factors, there is 1 type of passive student, namely deliberate passive.
Analisis indeks Aiken untuk mengukur validitas isi instrumen komitmen tugas bermain sepakbola
Authors: Yuliarto Hari
Published: October 2022

Tujuan penelitian ini untuk mengetahui validitas isi instrumen komitmen tugas bermain sepakbola melalui analisis indeks Aiken. Subjek penelitian ini adalah dosen dan pelatih siswa SSO Real Madrid Fakultas Universitas Negeri Yogyakarta. Instrumen yang digunakan adalah instrumen pengukuran komitmen tugas bermain sepakbola yang terdiri dari lima indikator, yaitu: 1) kapasitas untuk mendalami teknik dalam sepakbola yang ditekuni; 2) ketekunan menjalani pelatihan sesuai dengan program latihan; 3) daya tahan mental dalam berlatih dan berlaga; 4) keyakinan diri mampu; dan 5) dorongan untuk berprestasi. Pengukuran validitas instrumen menggunakan analisis Aiken yang melibatkan enam (6) orang rater sebagai penilai. Hasil penelitian adalah: 1) diperoleh validitas isi instrumen  pengukuran komitmen tugas bermain sepakbola pada aspek kapasitas teknik diperoleh nilai terendah 0.83 dan tertinggi 0.88; pada aspek ketekunan  diperoleh nilai terendah 0.83 dan tertinggi 0.88; pada aspek daya tahan mental diperoleh nilai terendah 0.83 dan tertinggi 0.88; pada aspek dorongan berprestasi diperoleh nilai terendah 0.83 dan tertinggi 0.88; dan pada aspek kapasitas teknik diperoleh nilai terendah 0.83 dan tertinggi 0.92. Aiken index analysis to measure the validity of the content of the soccer-playing task commitment instrument AbstractThe research intends to determine the content validity of the task commitment of playing football through an analysis of the Aiken index. Research subjects were lecturers and trainers of SSO Real Madrid students of the Faculty of Sport Sciences Universitas Negeri Yogyakarta. The instrument used was by measurement instrument of the commitment of playing football consisting of five indicators: (1) the capacity to explore the techniques in football that are occupied; (2) perseverance following training in accordance with the training program; (3) mental endurance in practising and competing; (4) confidence of being able; and (5) encouragement for achievement. Measurement of instrument validity used Aiken analysis involving six (6) raters as assessors. The research results are: (1) is obtained the content validity of the instrument measuring the task commitment of playing football on technique capacity aspect that is taken the lowest value 0.83 and the highest 0.88; in the perseverance aspect, the lowest value is 0.83 and the highest 0.88; in the mental endurance aspect, the lowest value is 0.83 and the highest 0.88; on the achievement encouragement aspects, the lowest value is 0.83 and the highest 0.88; and on the technique capacity aspect, the lowest value is 0.83 and the highest 0.92.
Pemenuhan kebutuhan aktivitas fisik peserta didik selama pandemi Covid-19
Authors: Basuki Basuki , Rahman Taufik , Prakoso Bayu Budi , Bayu Wahyu Indra
Published: October 2022

Tujuan penelitian ini adalah: (1) mengidentifikasi bagaimana guru pendidikan jasmani memberikan materi terkait aktivitas fisik; (2) memastikan sumber belajar yang digunakan oleh guru pendidikan jasmani dalam memberikan materi kepada peserta didik; dan (3) memahami hambatan dan tantangan dari pengamalam oleh guru pendidikan jasmani selama pandemic Covid-19. Penelitian survei dengan menggunakan non-structural questionnaire yang telah disiapkan untuk diisi oleh guru pendidikan jasmani di beberapa Kota (Sidoarjo, Jombang, Sumenep, dan Palembang). Hasil penelitian dari 31 guru pendidikan jasmani (L = 24; P = 7) dengan masa kerja rata-rata 7-8 tahun, menunjukkan mayoritas responden berasal dari sekolah tingkat dasar (SD/MI) sebesar 58,06%, SMP/MTs sebesar 19,35%, dan SMA/SMK/MA sebesar 22,58%. Responden juga ditanya apakah selama pandemi Covid-19 mereka dapat memberikan pembelajaran pendidikan jasmani, sebagian besar responden menjawab “Ya” sebesar 87,10%, “Tidak” sebesar 9,68%, dan “Mungkin” 3,23%. Aktivitas peserta didik mengalami penurunan dari 2-4 jam/minggu, menjadi 1-2 jam/minggu selama pandemi Covid-19. Sehingga dapat disimpulkan bahwa pandemi Covid-19 menyebabkan penurunan yang signifikat terkait dengan pemenuhan aktivitas fisik peserta didik serta memberikan tantangan kepada guru pendidikan jasmani untuk tetap dapat memberikan materi pembelajaran pendidikan jasmani yang baik dan benar. Abstract: The objectives of this study are: (1) to identify how physical education teachers provide material related to physical activity; (2) ensure the learning resources used by physical education teachers in providing material to students; and (3) understand the barriers and challenges of experience by physical education teachers during the Covid-19 pandemic. Survey research using a non-structural questionnaire that has been prepared to be filled out by physical education teachers in several cities (Sidoarjo, Jombang, Sumenep, and Palembang). The results of the study of 31 physical education teachers (L = 24; P = 7) with an average working period of 7-8 years, showed that the majority of respondents came from elementary school level of 58.06%., primary school level by 19.35%, and high school level by 22.58%. Respondents were also asked whether during the Covid-19 pandemic they could provide physical education lessons, most of the respondents answered "Yes" by 87.10%, "No" by 9.68%, and "Maybe" 3.23%. Student activity has decreased from 2-4 hours/week, to 1-2 hours/week during the Covid-19 pandemic. So it can be concluded that the Covid-19 pandemic caused a significant decrease in terms of fulfilling the physical activity of students and provided challenges for physical education teachers to deliver good and correct physical education learning materials.
Meningkatkan kemampuan smash sepak takraw melalui media bola gantung siswa kelas X SMK Negeri 6 Luwu
Authors: Kahar Irsan , Jalil Rasyidah , Ahmad Ahmad , Hidayat Muh. , Hairati Mifta
Published: October 2022

Penelitian ini bertujuan untuk mendeskripsikan penerapan metode pembelajaran dalam peningkatan kemampuan smash dalam permainan sepak takraw melalui media bola gantung pada SMK Negeri 6 Luwu, pada penelitian ini terdapat 16 siswa yang menjadi sampel penelitian, hasil penelitian ini adalah melalui media bola gantung diterapkan kepada siswa dapat meningkatkan hasil kemampuan smash di SMK Negeri 6 Luwu. Hal ini ditujukan dengan hasil dari pra siklus sehingga siklus kedua memiliki peningkatan ketuntasan pada kemampuan smash sepak takraw sebanyak 100%. Hal ini menunjukkan bahwa metode melalui media bola gantung dapat meningkatkan kemampuan smash siswa. The purpose of this study was to determine the improvement of smash ability in the game of sepak takraw through hanging ball media for class X SMKN 6 Luwu. This study uses a qualitative approach and uses psychomotor data. The population in this study were 16 students. The result of this study is that through the hanging ball media applied to students, it can improve the results of smash abilities at SMK Negeri 6 Luwu. This is indicated by the results of the pre-cycle so that the second cycle has an increase in completeness in the sepak takraw smash ability as much as 100%. This shows that the method through the hanging ball media can improve students' smash abilities.
Motivasi Belajar Siswa Pendidikan Jasmani Sebagai Hasil Determinan Dalam Gaya Mengajar
Authors: Mawarti Sri , Rohmansyah Nur Azis , Hiruntrakul Ashira
Published: October 2022

Tujuan dari penelitian ini adalah untuk menyelidiki efek gaya mengajar berpusat pada guru dibandingkan dengan gaya mengajar yang berpusat pada siswa pada respon motivasi kognitif dan afektif siswa dalam pelajaran pendidikan jasmani. Empat guru mengajar sembilan puluh dua siswa yang direkam dengan menggunakan gaya mengajar yang berbeda-beda mengadopsi dari Mosston dan Ashworth yaitu gaya komando, gaya resiprokal, dan gaya penemuan terbimbing. Sistem pengkodean yang diadopsi dari Ames digunakan untuk mengukur gaya mengajar. Tanggapan kognitif dan afektif siswa diukur dalam kelompok. Hasil penelitian menunjukkan bahwa gaya penemuan terbimbing dan timbal balik lebih baik dalam hal penguasaan dan perilaku dalam mengajar yang kurang focus serta tanggapan kognitif dan afektif dari siswa yang lebih baik dari pada gaya komando. The aim of this study was to investigate the effect of teacher-centered teaching versus student-centered teaching styles on students' cognitive and affective motivational responses in physical education lessons. Four teachers taught ninety-two students who recorded using different teaching styles adopted from Mosston and Ashworth namely the command style, reciprocal style, and guided discovery style. The coding system adopted from Ames is used to measure teaching style. Students' cognitive and affective responses were measured in groups. The results showed that the guided and reciprocal discovery style was better in terms of mastery and less focused teaching behavior and the students' cognitive and affective responses were better than the command style.
Development of Teacher Guidelines on Non-Locomotor Movement Learning for Student with Autism
Authors: Kurniawan Rama , Pambudi Satya , Heynoek Febrita Paulina
Published: October 2022

Penelitian ini bertujuan untuk mengembangkan pedoman mengajar pembelajaran materi gerak non lokomotor untuk guru kelas III SDLB autis. Pedoman mengajar dibuat dilengkapi dengan panduan gerakan, gambar dan video terintegrasi melalui link dan QR Code dapat diakses melalui internet. Model penelitian dan pengembangan mengadaptasi model ADDIE (analysis, design, develop, implement, and evaluate). Metode penelitian pengembangan menggunakan pendekatan deskriptif kuantitatif, dengan teknik pengumpulan data melalui angket analisis kebutuhan dan instrumen penilaian validasi. Subjek penelitian yaitu 3 peserta didik dan 6  guru Autis Laboratorium Universitas Negeri Malang dan 9 peserta didik serta 12 guru SLB C Autis Negeri Tuban. Hasil ujicoba kelompok memperlihatkan presentase 78% pada kelompok kecil dan sebesar 95% pada kelompok besar. Berdasarkan data tersebut, disimpulkan bahwa pedoman mengajar guru materi gerak non lokomotor untuk siswa kelas III SDLB Autis sangat valid untuk digunakan dalam pembelajaran. This study aimed to develop non-locomotor movement learning teaching guidelines for teachers of 3rd-grade students of SDLB with autism. The teaching guidelines were completed with instructions, pictures, and movement videos that can be accessed from the link and Qr Code via the internet. This research and development used ADDIE as the model. The method used in this research was a mixed method that combined qualitative and quantitative approachs. Data were collected through needs analysis questionnaires and judgement experts. This study involved 6 teachers and 3 students from SLB Autism Universitas Negeri Malang and 12 teachers and 9 students from SLB C Autism Tuban as the research subjects. The result of the study from small group and large group revealed the validation of teaching guidelines feasibility increased from 78% to 96% with very valid information. In conclusion, the non-locomotor movement learning teacher’s handbook for teachers of 3rd-grade students of SDLB with autism could be used in the learning and teaching process.
Модификация материала катода вокруг центров взрывной электронной эмиссии в искровой стадии вакуумного пробоя
Authors: Нефедцев Е.В. , Онищенко С.А.
Published: October 2022

On the basis of numerical calculations estimates for the fields of mechanical stresses around the explosive electron emission centers of the cathode during the development of pulsed vacuum breakdown are given. Expansion of material due to conduction loss was taken into account. It is shown that the sizes of regions with broken crystalline structure is much larger than the corresponding of explosive emission centers.
The Incidence and Effect of Adverse Events Due to COVID-19 Vaccines on Breakthrough Infections: Decentralized Observational Study With Underrepresented Groups
Authors: Gabashvili Irene S
Published: October 2022

Background

Despite continuing efforts to improve the inclusion of underserved groups in clinical research, gaps in diversity remain. Participation of special populations is especially important when facing problems of unprecedented complexity such as the COVID-19 pandemic. A better understanding of factors associated with the immune response in diverse populations would advance future preventive and curative approaches.

Objective

The objective of this study was to investigate the factors potentially responsible for adverse events following COVID-19 immunization. The study population included adults from rural areas, transitional countries, and those with medically understudied conditions, across a broad age range.

Methods

The study evolved from peer support networks developed during the COVID-19 pandemic. Participants were recruited digitally through online neighborhood and health communities. Some of the participants volunteered as study investigators assisting with offline recruitment and safety monitoring. Individuals who consented to participate were asked to share their vaccination experiences either using constantly evolving web-based surveys or via one-on-one communication. Inferential statistical analysis to estimate differences between study groups was performed using parametric and nonparametric tests.

Results

Of 1430 participants who shared their vaccination experiences, 648 had outcome measures at their 1.5-year follow-up. Significant differences were found between age groups, types of vaccine adverse events (VAEs), incidences of breakthrough infections, and health conditions linked to the microbiome. Pairwise comparisons showed that VAEs interfering with daily activities were significantly higher in both younger (18-59 years) and older age groups (80-100 years, P<.001) than in the 60-79–year age group. Short-term VAEs were associated with lower incidence of breakthrough COVID-19 infections relative to those who reported either minimal or long-term adverse events (P<.001). A genetic origin was suggested for some adverse reactions.

Conclusions

The findings of this study demonstrate that vaccine adverse reactions in older individuals are being overlooked, and the incidence of VAEs impairing immunity may be higher than previously perceived. Better preventive measures are needed for all those at risk for life-threatening and long-term adverse events due to vaccination. Supportive community-based studies focusing on these populations could add important data to the current body of knowledge. Further and more comprehensive studies should follow.

Trial Registration

ClinicalTrials.gov NCT04832932; https://clinicaltrials.gov/ct2/show/NCT04832932

International Registered Report Identifier (IRRID)

RR2-10.1101/2021.06.28.21256779
Ứng dụng công nghệ IoT và mạng cảm biến trong giải pháp quản lý môi trường và nâng cao hiệu quả mô hình lúa tôm ở huyện An Biên tỉnh Kiên Giang
Authors: Trương Minh Thái , Dương Nhựt Long
Published: October 2022

Mô hình lúa - tôm là mô hình canh tác truyền thống của nông dân huyện An Biên, tỉnh Kiên Giang, hoạt động khai thác mô hình chủ yếu từ kinh nghiệm dân gian, hiệu quả kinh tế thấp. Công nghệ IoT và mạng cảm biến được ứng dụng trong quản lý môi trường trong mô hình canh tác lúa - tôm ở huyện An Biên tỉnh Kiên Giang nhằm xây dựng hoàn thiện quy trình kỹ thuật vận hành mô hình, nâng cao lợi nhuận cho người canh tác lúa tôm. Trong thực nghiệm, hệ thống quan trắc ứng dụng công nghệ IoT và mạng cảm biến được dùng để thu thập, giám sát và quản lý dữ liệu của các yếu tố môi trường (độ mặn, pH, NH4, DO, nhiệt độ) trong mô hình canh tác lúa - tôm ở 4 xã của huyện thuộc huyện An Biên đã được triển khai thiết kế, lắp đặt và vận hành. Hệ thống này giúp cho nông dân chủ động quyết định thời gian phù hợp để cấp nước thêm cho ruộng tạo sự ổn định của chất lượng nước trong ruộng nuôi, nâng được tỷ lệ sống của tôm,...
Ảnh hưởng của nước muối lên khả năng tăng trọng và năng suất sữa của dê
Authors: Nguyễn Thiết , Trương Văn Khang , Nguyễn Trọng Ngữ , Sumpun Thammacharoen
Published: October 2022

Mục tiêu của thí nghiệm là đánh giá ảnh hưởng của nước muối lên khả năng tăng trọng và năng suất sữa của dê. Thí nghiệm được bố trí hoàn toàn ngẫu nhiên với 04 nghiệm thức (NT) và 05 lần lập lại trên 20 dê thịt lai Boer (thí nghiệm 1) và 20 dê sữa lai Saanen (thí nghiệm 2) gồm: NT đối chứng (ĐC, nước ngọt), 3 nghiệm thức nước mặn là các nồng độ nước biển pha loãng: 0,50; 1,00 và 1,50% (NT5, NT10 và NT15). Kết quả thí nghiệm 1 cho thấy lượng thức ăn tiêu thụ (DMI) giảm và lượng nước uống (WI) tăng dần khi tăng dần nồng độ muối trong nước uống. Trọng lượng, tăng trọng, tần số hô hấp và nhiệt độ trực tràng của dê không có sự khác biệt giữa các nghiệm thức (P>0,05). Tuy nhiên, ở thời điểm 15:00 giờ, dê ở NT15 giảm tần số hô hấp và tăng nhiệt độ trực tràng so với NT ĐC. Kết quả thí nghiệm 2 cho thấy DMI, trọng lượng, năng suất sữa không khác biệt giữa các NT (P>0,05). WI của dê tăng khi uống nước muối có nồng độ...
Vai trò của liên kết sản xuất trong nông nghiệp ở Đồng bằng sông Cửu Long
Authors: Trần Thanh Dũng , Lê Thanh Sơn , Phạm Văn Trọng Tính
Published: October 2022

Liên kết sản xuất chính là điều kiện tiên quyết để thực hiện việc ứng dụng các tiến bộ khoa học kỹ thuật vào sản xuất, tạo lợi thế so sánh cho sản phẩm nông nghiệp Việt Nam trên đấu trường quốc tế. Nghiên cứu này được thực hiện thông qua phỏng vấn ngẫu nhiên kết hợp phân tầng 180 quan sát mẫu bao gồm những nông dân trồng lúa có và không tham gia cánh đồng lớn, những nông dân trồng nhãn có và không tham gia mô hình kiểu mẫu, những nông dân trồng cam xoàn có và không tham gia hợp tác xã. Thông qua kiểm định từng cặp T-test ở mức ý nghĩa 5% và mô hình Binary Logistic bởi phần mềm SPSS, nghiên cứu này đã minh chứng hiệu quả của liên kết sản xuất của nông dân như tạo cơ hội nâng cao kỹ thuật sản xuất, tạo điều kiện nâng cấp chuỗi cung ứng vật tư, nâng cấp chuỗi giá trị nông sản, mang lại hiệu quả kinh tế cao và có tầm nhìn chiến lược cho nền nông nghiệp công nghệ cao bền vững.