bluuebunny/crossref_metadata_2025 huggingface dataset:
The Role Of Student Da’wah Institutions In Improving Non-academic Achievements In The Faculty Of Social And Political Sciences, Mulawarman University
Authors: Fauzi Ahmad , Abdullah Zulkifli
Published: December 2021

ABSTRACT:

This study aims to identify and describe the role of the Student Da'wah Institute of the Faculty of Social and Political Sciences, Mulawarman University in contributing to improving the non-academic achievements of FISIP Mulawarman University students and to identify and describe the supporting and inhibiting factors of the Student Da'wah Institute (LDK) FISIP Mulawarman University in improving achievement. Non-Academic. The data collection technique is purposive sampling and the data analysis used in this research is descriptive qualitative. The results of this study indicate the role of LDK FISIP Mulawarman University in improving students' non-academic achievements, has three roles, namely the role of LDK FISIP as Education (Dakwah Education), the role of LDK FISIP as a facilitator, and the role of LDK FISIP as a motivator.

 

ABSTRAK:

Penelitian ini ditujukan untuk mengetahui dan mendekskripsikan peran Lembaga Dakwah Kemahasiswaan Fakultas Ilmu Sosial dan Ilmu Politik Universitas Mulawarman dalam berkontribusi meningkatkan prestasi Non Akademik mahasiswa FISIP Universitas Mulawarman dan untuk mengetahui dan mendeskripsikan faktor pendukung dan penghambat Lembaga Dakwah Kemahasiswaan (LDK) FISIP Universitas Mulawarman dalam meningkatkan prestasi Non Akademik. Adapun Teknik pengumpulan data adalah purposive sampling dan analisis data yang di gunakan dalam penelitian ini adalah deskriptif kualitatif. Hasil penelitian ini menunjukkan peran LDK FISIP Universitas Mulawarman dalam meningkatkan prestasi Non Akademik Mahasiswa, memiliki tiga peran yaitu Peran LDK FISIP sebagai Edukasi (Pendidikan Dakwah), Peran LDK FISIP sebagai Fasilitator dan Peran LDK FISIP sebagai Motivator.
Pengaruh Dukungan Sosial dan Penerimaan Diri terhadap Orientasi Pernikahan pada Individu yang Melakukan Pernikahan Dini
Authors: Al-Muti'ah Bahjatul Khasna , Kristanto Andreas Agung , Putri Elda Trialisa
Published: December 2021

Penelitian ini memiliki tujuan untuk mengetahui pengaruh dukungan sosial dan penerimaan diri terhadap orientasi pernikahan pada individu yang melakukan pernikahan dini. Penelitian ini menggunakan pendekatan kuantitatif. Subjek penelitian ini sebanyak 70 individu yang melakukan pernikahan dini dan dipilih dengan mengguankan teknik purposive sampling. Metode pengumpulan data yang digunakan dalam penelitian ini adalah skala orientasi pernikahan, dukungan sosial dan penerimaan diri. Data yang terkumpul dianalisis dengan uji analisis regresi linear berganda dengan bantuan program Statistic Package for Social Science (SPSS) 25.0 for windows. Hasil penelitian menunjukan bahwa: (1) Terdapat pengaruh yang signifikan antara dukungan sosial dan penerimaan diri terhadap orientasi pernikahan pada individu yang melakukan pernikahan dini (2) Terdapat pengaruh yang signifikan antara dukungan sosial terhadap orientasi pernikahan pada individu yang melakukan pernikahan dini (3) Terdapat pengaruh yang signifikan antara penerimaan diri terhadap orientasi pernikahan pada individu yang melakukan pernikahan dini. This study aims to determine the effect of social support and self-acceptance on marriage orientation in individuals who perform early marriages. This study uses a quantitative approach. The subjects of this study were 70 individuals who performed early marriage and were selected using purposive sampling technique. The data collection method used was a scale of marriage orientation, social support and self-acceptance. The collected data were analyzed using multiple linear regression analysis with the help of the Statistical Package for Social Science (SPSS) 25.0 for windows program. The results showed that: (1) There was a significant influence between social support and self-acceptance on marriage orientation in individuals who performed early (2) There is a significant effect of social support on marriage orientation in individuals who perform early marriage (3) There is a significant effect of self-acceptance on marriage orientation in individuals who perform early marriage.
Pengaruh Motivasi Kerja dan Pengembangan Karir Terhadap Kinerja Karyawan
Authors: Larasati Lidia Dwi , Adriansyah Muhammad Ali , Rahmah Dian Dwi Nur
Published: December 2021

Penelitian ini bertujuan untuk mengetahui pengaruh motivasi kerja dan pengembangan karir terhadap kinerja karyawan pada tim penjualan PT. X Cabang Kota Samarinda. Penelitian ini menggunakan pendekatan kuantitatif. Subjek penelitian ini adalah 100 tim penjualan pada PT. X Cabang Kota Samarinda yang dipilih dengan teknik purposive sampling. Metode pengumpulan data menggunakan skala kinerja karyawan, motivasi kerja dan pengembangan karir dan dianalisis menggunakan uji analisis regresi linier berganda dengan bantuan program Statistical Package for Social Sciences (SPSS) 25.0 for windows. Hasil penelitian menunjukkan: (1) Terdapat pengaruh signifikan antara motivasi kerja dan pengembangan karir terhadap kinerja karyawan pada PT. X Cabang Kota Samarinda dengan nilai f hitung> f tabel (3.495> 3.09) dan nilai p = 0.034 (p< 0.05). Kontribusi pengaruh (R2) motivasi kerja dan pengembangan karir terhadap kinerja karyawan pada PT. X Cabang Kota Samarinda sebesar 0.067; (2) Terdapat pengaruh signifikan motivasi kerja terhadap kinerja karyawan pada PT. X Cabang Kota Samarinda dengan koefisien beta (β) = 0.436, serta nilai t hitung> t tabel (2.618>1.984) dan nilai p= 0.010 (p< 0.05); (3) Tidak terdapat pengaruh pengembangan karir terhadap kinerja karyawan pada PT. X Cabang Kota Samarinda dengan koefisien beta (β) =-0.242, serta t hitung < t tabel (-0.883 < 1.984) dan nilai p = 0.379 (p > 0.05).
Media Sosial dengan Sikap Pemilih Pemula
Authors: Diana Diana
Published: December 2021

Diusia muda dan terbatasnya wawasan politik, menyebabkan pemilih pemula mudah terikut arus dan mudah mengubah pilihannya. Terlebih lagi, pada saat ini penggunaan media sosial akan membuat pemilih pemula terhasut akan ujaran kebencian, hoaks, dan meme yang dapat memicu konflik dalam Pilkada. Tujuan penelitian ini ialah mengganalisis hubungan antara media sosial dengan sikap pemilih pemula. Metode penelitian ini adalah penelitian kuantitatif, adapun pendekatan yang digunakan adalah korelasi dan komparasi. Subjek dalam penelitian ini adalah mahasiswa semester I Program studi Admintrasi Negara yang berjumlah 74 orang mahasiswa. Teknik pengumpulan data dalam penelitian ini yaitu Library research dan Field Work research. Hasil Penelitian menunjukkan bahwa berdasarkan analisis pearson r correlation pada tabel 4.12 didapatkan hasil tidak terdapat hubungan antara media sosial dengan sikap pemilih pemula, dengan nilai korelasi sebesar 0.114 dan nilai Sig sebesar 0.335 (P < 0.05), yang menunjukan bahwa tidak terdapat hubungan yang kuat media sosial dengan sikap pemilih pemula. Berdasarkan hasil penelitian menunjukan bahwa tidak terdapat hubungan yang kuat media sosial dengan sikap pemilih pemula pada pemilihan gubernur Kalimantan Timur.
Hubungan Penerimaan Diri dan Dukungan Sosial Terhadap Adaptasi Sosial Pada Anak yang Menjadi Korban Perceraian Orang Tua
Authors: Maharani Devira , Adriansyah Muhammad Ali
Published: December 2021

Penelitian ini bertujuan untuk mengetahui pengaruh penerimaan diri dan dukungan sosial terhadap adaptasi sosial anak yang menjadi korban perceraian orang tua. Penelitian ini menggunakan pendekatan kuantitatif. Subjek penelitian ini sebanyak 60 orang, yang dipilih menggunakan Teknik purposive sampling. Metode pengumpulan data yang digunakan adalah skala adaptasi sosial, penerimaan diri, dan dukungan sosial. Data yang terkumpul dianalisis dengan uji analisis regresi berganda dengan menggunakan metode purposive sampling, pengumpulan data pada penelitian ini menggunakan skala adaptasi sosial, penerimaan diri dan dukungan sosial. Data yang terkumpul dianalisis dengan uji analisis regresi linear berganda. Hasil penelitian menunjukkan bahwa: (1) ada pengaruh signifikan penerimaan diri terhadap adaptasi sosial dengan koefisien nilai beta (β) = 0.579, serta nilai t hitung > t tabel ( 4.332 > 2.002) dan nilai p = 0.000 (p < 0.05); (2) ada pengaruh signifikan dukungan sosial terhadap adaptasi sosial dengan memperoleh koefisien nilai beta (β) = 0.272; t hitung > t tabel (2.261 > 2.002) dan nilai p = 0.027 (p < 0.05); (3) ada pengaruh signifikan penerimaan diri dan dukungan sosial terhadap adaptasi sosial dengan koefisien nilai beta (β) = 0.575, serta nilai f hitung > f tabel (38.535 > 2.76) dan nilai p = 0.000 (p < 0.05). This study aims to determine the effect of self-acceptance and social support on the social adaptation of children who are victims of parental divorce. This study uses a quantitative approach. The subjects of this study were 60 people, who were selected using purposive sampling technique. The data collection method used is the scale of social adaptation, self-acceptance, and social support. The collected data were analyzed by multiple regression. By using purposive sampling method, data collection in this study used a scale of social adaptation, self-acceptance and social support. The data collected was analyzed by using multiple linear regression. The results showed that: (1) there was a significant effect of self-acceptance on social adaptation with a coefficient of beta value (β) = 0.579, and t count > t table ( 4.332 > 2.002) and p value = 0.000 (p < 0.05); (2) there is a significant effect of social support on social adaptation by obtaining a beta value coefficient (β) = 0.272; t count > t table (2.261 > 2.002) and p value = 0.027 (p < 0.05); (3) there is a significant effect of self-acceptance and social support on social adaptation with a coefficient of beta (β) = 0.575, and the value of f count > f table (38,535 > 2.76) and p value = 0.000 (p < 0.05)
Persepsi Siswa Tentang Kinerja Guru Dan Kesiapa Belajar Terhadap Prestasi Belajar Siswa SMA
Authors: Fathonah Chairini , Ramadhani Ayunda
Published: December 2021

Penelitian ini bertujuan untuk mengetahui pengaruh persepsi siswa tentang kinerja guru dan kesiapan belajar siswa terhadap prestasi belajar siswa SMA Hidayatullah Bontang. Penelitian menggunakan pendekatan kuantitatif. Subjek penelitian adalah 100 siswa yang dipilih menggunakan teknik total sampling. Metode pengumpulan data adalah nilai rapor untuk prestasi belajar dan skala untuk persepsi siswa tetang kinerja guru dan kesiapan belajar. Analisis data dengan uji analisis regresi berganda menggunakan bantuan program Statistical Package for Social Sciences (SPSS) 25.0 for windows. Hasil penelitian ini menunjukkan bahwa: (1) ada pengaruh yang signifikan antara persepsi siswa tentang kinerja guru dan kesiapan belajar terhadap prestasi belajar siswa SMA dengan nilai diperoleh F hitung > F tabel (11.059 > 3.09) dan nilai p = 0.000 (p < 0.05). Kontribusi pengaruh (R2) sebesar 0.323 (32.3 persen); (2)Terdapat pengaruh signifikan persepsi siswa tentang kinerja guru terhadap prestasi belajar dengan koefisien nilai beta = 0.496, t hitung > t tabel (3.176 > 1.984) dengan nilai p = 0.000, (p < 0.05); (3) ada pengaruh signifikan kesiapan belajar dengan prestasi belajar dengan koefisien nilai beta = 0.520, t hitung > t tabel (2.102 > 1.984) dan nilai p = 0.000 (p < 0.05). This study aims to determine the effect of student perceptions of teacher performance and student learning readiness on student achievement at Hidayatullah Bontang High School. The research uses a quantitative approach. The research subjects were 100 students who were selected using total sampling technique. Data collection methods are report cards for learning achievement and a scale for students' perceptions of teacher performance and learning readiness. Data analysis using multiple regression analysis using the Statistical Package for Social Sciences (SPSS) 25.0 for windows program. The results of this study indicate that: (1) there is a significant effect between students' perceptions of teacher performance and learning readiness on high school students' learning achievement with the value obtained by F arithmetic > F tabel (11.059 > 3.09) and p value = 0.000 (p < 0.05) . The influence contribution (R2) is 0.323 (32.3 percent); (2) There is a significant effect of students' perceptions of teacher performance on learning achievement with a coefficient of beta = 0.496, t count > t tabel (3.176 > 1.984) with p value = 0.000, (p < 0.05); (3) there is a significant effect of learning readiness with learning achievement with a coefficient of beta = 0.520, t count > t tabel (2.102 > 1.984) and p value = 0.000 (p < 0.05).
Ecosystem Based Management Approach for Sea Water Management: Existing Situation in Turkey
Authors: Eyüboğlu Ömer , Eyuboglu Huri
Published: December 2021

The overall aim of the Marine Strategy Framework Directive (MSFD) is to achieve or maintain Good Environmental Status (GES) within the marine environment. Turkey is in the process of using/developing an Ecosystems-Based Management approach for governance of its marine waters, based on the European Union (EU) Marine Strategy Framework Directive. The legislative history, conceptual approach, structure and content of the Directive, as well as some of its unique regulatory features are discussed here. The implementation of the MSFD represents a demanding task in the integrative assessment of marine ecosystems. Here we describe the implementation process, and we discuss the institutional framework and the main difficulties and challenges encountered so far, with emphasis on the Turkey context. This paper will provide a review of the existing institutional and legislative structure in Turkey relevant to the future implementation of the MSFD. Over the years Turkey has developed a robust body of Environment Law in general and a complicated institutional structure. One of the key priority elements for a successful implementation of the MSFD is the establishment of an effective framework for coordination and cooperation among national, regional and local authorities.
Разработка методики ковалентной иммобилизации папаина с использованием глутарового альдегида
Authors: Olshannikova S. , Holyavka M. , Artyukhov V.
Published: December 2021

Осуществлена ковалентная иммобилизация папаина на матрице кислоторастворимых среднемолекулярного и высокомолекулярного хитозанов, проведены сополимеризация и иммобилизация в белковой пленке молекул фермента. Оптимальное соотношение содержания белка (мг на г носителя), общей активности (в ед на мл раствора) и удельной активности (в ед на мг белка) выявлено при ковалентной иммобилизации папаина на матрице среднемолекулярного хитозана с 15 % глутаровым альдегидом и высокомолекулярного хитозана с 20 % глутаровым альдегидом.
Сравнительное изучение антагонистической активности бифидо- и лактосодержащих пробиотиков
Authors: Несчисляев В. , Столбова М. , Орлова Е. , Савина А. , Белова И.
Published: December 2021

Проведен сравнительный анализ антагонистической активности пробиотических препаратов: монокомпонентных — Бифидумбактерин (Bifidobacterium bifidum), Лактобактерин (Lactobacillus plantarum); поликомпонентных пробиотиков — Бифилакт-БИЛС (L. plantarum, L. acidophilus, B. bifidum), Линекс (L. acidophilus, B. infantis, Enterococcus faecium), Бифиформ (B. longum, E. faecium); на основе сорбированных клеток — Бифидумбактерин форте (B. bifidum, сорбированный на активированном угле) и Имбикапс (B. bifidum, сорбированный на гомогенате бурых водорослей) — методом отсроченного антагонизма (в качестве тест-штамма использовали Escherichia coli 157) и экспресс-теста подавления биолюминесценции индикаторного штамма E. coli lum+. Выявлена высокая чувствительность тест-штаммов E. coli 157 и E. coli lum+ к препаратам Лактобактерин, Бифилакт-БИЛС и Имбикапс. Установлено, что экспресс-тест изменения биолюминесценции штамма E. coli lum+ позволяет оценить антагонистическую активность пробиотического препарата в целом, тогда как метод отсроченного антагонизма дает представление о потенциальных антагонистических свойствах штаммов, входящих в состав препаратов, которую они проявляют в благоприятных условиях. В экспресс-тесте также оценивается метаболитная составляющая препарата, которая играет существенную роль в реализации биологической активности пробиотика. Препараты Лактобактерин, Бифилакт-БИЛС и Имбикапс обладают определенным преимуществом по биологической активности в сравнении с аналогичными отечественными и зарубежными пробиотиками.
Отложенные полипептид класс-эффекты на модели старения эстральной функции крыс
Authors: Юдин С. , Щербакова Г. , Шарабанов А. , Осинцев А.
Published: December 2021

В модельном эксперименте старения изучено влияние экстрактов пептидной природы в виде набора пептидных экстрактов с последовательным их введением и применением технологии хронотерапии на эстральную функцию самок крыс. Проведено гистологическое исследование яичников на предмет отложенных эффектов по влиянию экстрактов пептидной природы на эстральную и репродуктивную функцию самок крыс при возрастных изменениях.
KORELASI ADVERSITY QUOTIENT DENGAN PRESTASI NILAI SKOR TOSM PADA PENGURUS OSIS SMK
Authors: Saputra Ade Machnun , Sugiarti Rini
Published: December 2021

This study aims to empirically test the influence of adversity quotient on the achievement of ToSM (test of second mathematics) scores on the student. The hypothesis proposed is the influence of adversity quotient on the accomplishment of ToSM scores on students. The subjects in this study amounted to 34 students from SMK Negeri 1 Dukuhturi, Tegal Regency. The sampling technique used is saturated sampling. The measuring instruments in this study were adversity quotient scales and Android app-based ToSM. The results of this study showed the significance of the correlation test was 0.671 > 0.05 and Pearson correlation = 0.075 < r table = 0.3246, while the linearity test explained the magnitude of the correlation value / R relationship of 0.75 of the output obtained a coefficient of determination (R Square) of 0.006, which contains the understanding that the influence of Adversity Qutotien variable on variable performance ToSM score value is 0.6%, the data can be interpreted that there is no correlation between the variables studied, these findings can also be interpreted that to increase KHDI is not enough just by relying on adversity intelligence alone need other efforts.
EMPATI DAN PERAN BYSTANDER DALAM CYBERBULLYING: FAMILY COMMUNICATION PATTERN SEBAGAI MEDIATOR
Authors: Rizkyanti Charyna Ayu , Cahyani Asti Hesti , Salsabilla Salfira , Aulia Asti
Published: December 2021

Sejak media sosial menjadi begitu berpengaruh dalam kehidupan sehari-hari remaja terutama selama kondisi tinggal di rumah dalam Pandemi Covid-19, kekhawatiran para peneliti tentang efek pengamat (cyberbystander) dalam cyberbullying tumbuh. Tujuan penelitian ini adalah untuk mengetahui peran mediator parent communication pattern dalam pengaruh empati terhadap peran sebagau cyberbystander di kalangan remaja pengguna media sosial. Sebanyak 447 remaja berusia 12-21 tahun terlibat dan menyelesaikan Cyberbullying Bystander Scale (CBS) oleh Sarmiento et al., (2019), The Basic Empathy Scale (BES) oleh Jolliffe & Farrington (2006), dan The Revised Family Communication Pattern (RFCP) oleh Koerner & Fitzpatrick (2002). Hasil penelitian menunjukkan bahwa parent communication pattern secara parsial memediasi pengaruh empati terhadap perilaku cyberbystander (B = 0,0241, LLCI = 0,0096, ULCI = 0,0403). Dapatan ini menekankan bahwa empati memiliki efek langsung yang kuat pada perilaku cyberbystander. Temuan ini juga menggarisbawahi pentingnya fungsi keluarga untuk memperkuat empati remaja agar menghindarkan mereka untuk menjadi cyberbystander.
PENGARUH EFIKASI DALAM BEKERJA DAN ORIENTASI KEWIRAUSAHAAN ORGANISASI TERHADAP KOMITMEN ORGANISASI PADA GENERASI MILENIAL DI PERUSAHAAN X
Authors: Indrawati Juni , Kurniawan Jimmy Ellya
Published: December 2021

Generasi millennial cenderung memiliki komitmen organisasi yang rendah. Komitmen diasumsikan dapat ditingkatkan dengan adanya efikasi dalam bekerja dan budaya yang berorientasi kewirausahaan. Penelitian ini menggunakan pendekatan kuantitatif, metode korelasional dengan tujuan agar mengetahui apakah ada pengaruh efikasi dalam bekerja dan orientasi kewirausahan organisasi terhadap komitmen organisasi. Pengambilan data menggunakan metode survei dengan cara menyebarkan kuesioner di Perusahaan X. Subjek penelitian adalah 157 generasi milenial yang memiliki masa kerja sekurangnya satu tahun. Dari Uji regresi linear berganda yang dilakukan dapat disimpulkan ada pengaruh antara efikasi dalam bekerja dan orientasi kewirausahaan organisasi terhdap komitmen orgnisasi. Penelitian ini juga menunjukkan bahwa dimensi efikasi dalam bekerja yang paling berpengaruh terhadap komitmen organisasi adalah occupational social self-efficacy. Sedangkan dimensi orientasi kewirausahaan organisasi yang paling mempengaruhi komitmen organisasi adalah proaktif.
Pengembangan Media Mobile Learning Dengan Pendekatan Saintifik Berbasis Keterampilan Berpikir Kritis Matematis Siswa Kelas XI MAN 2 Kota Jambi
Authors: Mariani Rini , Marzal Jefri , Zurweni Zurweni
Published: December 2021

Penelitian ini merupakan jenis penelitian pengembangan. Penelitian ini bertujuan untuk (1) mendeskripsikan bagaimana proses keterampilan berpikir kritis yang dihasilkan dari pengembangan media mobile learning menggunakan aplikasi Smart Apps Creator (SAC) 3 pada materi turunan di kelas XI MIA; (2) mendeskripsikan kelayakan media mobile learning secara teori dan praktis; (3) mendeskripsikan efektivitas dari media mobile learning. Untuk mencapai tujuan tersebut, dikembangkan media mobile learning berbasis keterampilan berpikir kritis matematis dengan model pengembangan Lee dan Owens. Media ini divalidasi oleh ahli dan dinilai oleh guru kemudian diujicobakan pada siswa kelompok kecil dan kelompok besar. Kelayakan media pembelajaran mengacu kepada tiga aspek yaitu kevalidan, kepraktisan dan keefektifan. Kelayakan secara teori diperoleh dari validasi ahli, sedangkan kelayakan secara praktis diperoleh dari ujicoba kelompok kecil dan uji coba kelompok besar dengan kriteria sangat praktis. Hasil angket penilaian guru diperoleh persentase 89%, ujicoba kelompok kecil 86% serta ujicoba kelompok besar dengan persentase 87,5%. Untuk melihat efektifitas media dilakukan pretest dan post test untuk melihat keterampilan berpikir kritis siswa sebelum dan sesudah penggunaan media. Untuk mengukur keterampilan berpikir kritis siswa digunakan uji n-gain. Berdasarkan hasil uji N-Gain diperoleh hasil dengan kategori tinggi. Berdasarkan hasil tersebut, sehingga diperoleh kesimpulan bahwa media mobile learning layak digunakan untuk meningkatkan berpikir kritis matematis siswa.
Kemampuan Penalaran Matematis Siswa dalam Memecahkan Masalah Matematika pada Saat Pembelajaran Daring
Authors: Kusumaningtyas Nastiti , Parta I Nengah , Susanto Hery
Published: December 2021

Penelitian ini bertujuan untuk mendeskripsikan kemampuan penalaran matematis siswa SMP dalam memecahkan masalah segiempat pada saat pembelajaran dilakukan secara daring. Penelitian diikuti oleh 20 siswa kelas IX C SMP Negeri 1 Kencong. Selanjutnya dipilih 6 sampel yang terdiri dari 6 subjek yaitu dua subjek yang mememiliki kemampuan matematis tinggi, dua subjek yang mempunyai kemampuan matematis sedang, serta dua subjek yang mempunyai kemamuan matematis rendah untuk kemudian dilakukan wawancara secara daring menggunakan aplikasi Whatssapp. Instrumen penelitian dalam penelitian ini adalah tes pemecahan masalah matematika segiempat dan pedoman wawancara. Hasil penelitian menunjukkan bahwa subjek dengan kemampuan matematika tinggi juga memiliki kemampuan penalaran matematis yang tinggi. Subjek yang memiliki kemampuan matematika sedang juga memiliki kemamuan penalaran matematis sedang. Siswa dengan kemampuan matematika rendah juga memiliki kemampuan penalaran matematis rendah. Selain itu, siswa dengan kemampuan penalaran matematis tinggi bisa memberikan lebih dari satu jawaban dalam memecahkan masalah.
REASONS FOR DESTRUCTION OF CONTINUOUS WELDED RAIL TRACKS
Authors:   Moscow Polytechnic University, Volgina N.I. , Gertsyk S.I. ,   Moscow Polytechnic University
Published: December 2021

The main reasons for occurrence of operational defects in continuous welded rail tracks, the main types of their destruction and causes of their occurrence are considered. The technologies for manufacture of the rails are analyzed, including heat treatment along the entire length of the rail, processing the ends of the rail, surface hardening and anti-flake treatment were analyzed.
Thermochemical synthesis of tribotechnical coatings based on molybdenum diselenide MoSe2 on structural steels
Authors:   NUST MISIS, 119049, Moscow, Russia, Lobova T.A. , Kolmakov A.G. ,   A.A.Baikov IMET RAS, 119334, Moscow, Russia, Bodnarchuk V.I. ,   Metimpex LLC, Moscow, Russia, Marchenko E.A. ,   IMASH RAN, 101990, Moscow, Russia
Published: December 2021

The study results of the influence of parameters of the process of chemical-thermal treatment in selenium vapor during the preparation of solid lubricating coatings from molybdenum diselenide on specimens of structural steels with a plasma Mo-coating are presented. An empirical mathematical model of the temperature-time parameters of the Mo selenization process is proposed, which makes possible to control the quality of the obtained coatings depending on requirements for their tribotechnical properties. An assessment of their tribotechnical characteristics in air and in vacuum in the temperature range 20—600 °С has been carried out.
EXPERIENCE OF USING THE TEST SYSTEM «GASTROPANEL» IN THE PREVENTIVE MEDICAL EXAMINATION OF WORKFORCE IN JSC RZD
Authors:   PHI«RZD-Medicine» Yuzhno-Sakhalinsk», Yuzhno-Sakhalinsk, Russia, Devyatko A.O. , Noskova T.A. , Shevchenko N.V.
Published: December 2021

Abstract: Non-invasive diagnosis of the gastric mucosa was carried out in 181 people in the preventive medical examination of workforce in JSC RZD. A set of diagnostics from Vector-Best (Novosibirsk, Russia) was used for enzyme immunoassay of pepsinogen I, pepsinogen II, and immunoglobulins for Helicobacter pylori. The prevalence of H. pylori infection in more than half of the employees, the presence of deviations of biomarkers from the norm in more than one in three employees were revealed. Laboratory signs of atrophy were detected eight times less frequently than signs of inflammation of the gastric mucosa, but when infected with H. pylori and increased with age.
DIAGNOSIS OF PSYCHO-EMOTIONAL STRESS IN PROFESSIONAL RECRUITMENT
Authors:   FSBSI «Izmerov Research Institute of Occupational Health», Moscow, Russia, Zhbankova O.V. , Yushkova O.I. , Kapustina A.V.
Published: December 2021

Abstract. Introduction. Professional selection of workers in extreme occupations associated with increased danger and responsibility is an important task of labor physiology. The study of psychomotor skills under conditions of acute stress, the assessment of the physiological reactions of the cardiovascular system will determine the professional suitability of candidates for various specialties (technical or intellectual-analytical). Purpose of work. The study of diagnostic methodological approaches to assessing the professional suitability of persons in hazardous professions in psychophysiological professional selection. Materials and methods. Psychophysiological studies included the study of psychomotor skills, psychological testing according to the MMIL and 16 FLO tests, physiological studies of hemodynamic features in candidates with different resistance to stress (calculation of stroke blood volume - SV, MC blood minute volume and peripheral resistance of PS), professional analysis of the labor activity of workers to identify the requirements that hazardous professions place on the body of workers, Research results. In candidates for engineering and technical specialties, the tension of the circulatory system reflected high values of the average dynamic pressure (105.73 ± 1.45 mm Hg), changes in the optimal hyperkinetic type of blood circulation to hypokinetic: 66.7% of those examined with low resistance to stress. In candidates for communicative specialties, a sufficient level of physical activity contributed to the stability of the indicators of the cardiovascular system. Conclusions. Informative indicators have been established for assessing the professional suitability of candidates to perform official tasks in extreme conditions: changes in handwriting signs, peculiarities of psychological status (anxiety, conformism), hemodynamic characteristics
CHRYSOTILE-RELATED ASBESTOSIS IN THE POST-EXPOSURE PERIOD. STUDY DESIGN AND PRELIMINARY RESULTS
Authors:   YMRC PHPIW of Rospotrebnadzor, Yekaterinburg, Russia, Kashanskiy S.V. , Kovalevskiy E.K. ,   FSBSI «RIOH», Moscow, Russia, Milovankina N.O.
Published: December 2021

Abstract: Abstract. A retrospective case-control study among former workers of PJSC Uralasbest has been launched to establish the main clinical features of the disease as well as causes and structure of mortality in patients with chrysotile-related asbestosis in the post-exposure period taking into cumulative dust exposure. First, we collected information about 850 asbestosis cases diagnosed in the Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers in 1946-2000. Control group of workers without asbestosis, matched by sex, duration of work, working conditions, cumulative dust exposure, social and living conditions, was set up as a control group. All primary information was entered in a specially developed database. Second, we established the vital status of the cases and the controls as of January 1, 2020. A considerable improvement of working conditions for the main jobs at PJSC Uralasbest in the second half of the 20th century leading to a statistically significant decrease in the cumulative exposure both by total dust and respirable chrysotile asbestos fibers. Improved working conditions have influenced increasing the duration of work until the development of the disease as shown by the rise in the proportion of workers with diagnosed asbestosis, mainly stage I, workers with 20 or more years after the first exposure.
COMPARATIVE EVALUATION OF THE CAUSES OF DEATH IN A COHORT OF WORKERS IN THE MINING AND ENRICHMENT OF CHRYSOTILE ASBESTOS
Authors:   FSBSI «Izmerov Research Institute of Occupational Health», Moscow, Russia, Kovalevskiy E.V. ,   I.M. Sechenov First Moscow State Medical University (Sechenov University Sechenov University), Moscow, Russia, Schüz J. ,   International Agency for Research on Cancer (IARC/WHO), Lyon, France, Kashanskiy S.V. ,   Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, Yekaterinburg,  Russia.
Published: December 2021

Abstract. A retrospective cohort study was carried out to investigate the mortality of workers occupationally exposed to dust containing chrysotile asbestos fibers. In its chemical and physical properties, it differs from the fibers of other types of asbestos and is the only type of asbestos that is currently approved for use in many countries of the world. The members of the cohort are current and former employees who have worked for at least one year at the production sites of the complex of enterprises for the mining and enrichment of chrysotile asbestos (JSC «Uralasbest», Asbest, Sverdlovsk region) in the period from 01.01.1975 to 31.12.2010. Of the 35837 members of the cohort, 12729 (35.5%) people died (2373 of them were malignant neoplasms of various localizations, including 10 mesotheliomas), 18799 (52.5%) were alive at the end of the observation period (2015), and 4309 people (12.0%) were censored by the end of 2015. The mean follow-up period was 21.7 years for men and 25.9 years for women. The average age at death was 59.4 years for men and 66.5 years for women. This paper presents a general comparative evaluation of the causes of death of cohort members. Further processing of data obtained is currently underway.
IMMUNOLOGICAL DISORDERS OF THE REPRODUCTIVE SYSTEM THAT OCCUR WHEN EXPOSED TO BENZENE, IN EMPLOYEES OF OIL-PRODUCING ENTERPRISES
Authors:   FBSI «FSC for Medical and Preventive Health Risk Management Technologies. Center of Occupational Medicine and Pathology», Perm, Russia, Leshkova I.V. , Dolgih O.V. , Ustinova O.YU.
Published: December 2021

Abstract. Introduction. The protection of the reproductive health of the working-age population is the most important direction of State policy. In 5-15% of cases, the causes of reproductive dysfunction are immunological disorders. Benzene belongs to the group of industrial reprotoxicants, however, its effect of benzene on the reproductive system has not been sufficiently studied. Objective: to study the immunological aspects of the effect of benzene on the reproductive system. Methods. We examined 50 men exposed to benzene with reproductive disorders (26-49 years old), as well as 4 workers with normal sexual function aged 53-60 years. Spontaneous and induced changes in the cellular expression of apoptosis markers were studied. For the study, the ANNEXIN V-FITC/7-AAD kit was used for the detection of cells that have undergone apoptosis. The experiment was conducted in vitro using a biological medium (ejaculate). A factor of the chemical nature was benzene. Results. According to the results of the comparative analysis, there were no significant deviations of pathogenetic tests of immunological markers in comparison with the reference level in the spontaneous expression samples, but there was an excess of expression of the CD95 + cell death receptor (p<0.05) in 30% of the samples examined, and a decrease in the number of Annexin V-FITC+7AAD negative cells (without reaching the significance level) in samples with a load of (15%). There was a difference in the expression levels of CD95+ and CD25+ CD-reception indicators by 20% and 10% in relation to the spontaneous level (p<0.05). Representatives of the chemical group of aromatic hydrocarbons realize reprotoxicity, using the mechanism of excessive induction of the membrane signaling of the cell death receptor, accelerate the natural program of cell death by approximately 20% compared to the state of reproductive cells that were not stimulated. Conclusion. At the present stage, one of the tasks of occupational medicine is to study the effect of chemicals on the processes of reproduction, to develop new approaches to assessing the risk of their impact on the reproductive health of workers.
DEVELOPMENT OF PROFOTOR CRITERIA BY HEALTH PARAMETERS FOR WORKERS OF BMZ WITH THE CALCULATION OF «SAFE EXPERIENCE»
Authors:   NJSC «Medical University of Karaganda» MH RK, Karaganda, Republic of Kazakhstan, Otarbaeva M.B. , Battakova Sh.B. , Amanbekova A.U.
Published: December 2021

Summary: This article deals with the harm to the health of workers in harmful and hazardous working conditions, which is significant and requires the immediate implementation of measures aimed at reducing the occupational risk (PR). The categorization of the PR is carried out preliminary according to the classes of working conditions during the certification of workplaces, and finally - according to the health indicators of workers. The aim of the work was to develop criteria for professional selection and professional suitability in terms of health parameters for smelters of a metallurgical enterprise with the calculation of "safe experience". Researchers have developed a new approach to a comprehensive assessment of real workloads on the health of workers - an algorithm for highlighting the final selection and aptitude of the «safe work experience» in the profession of a smelter. As a methodological basis for substantiating the «safe experience», the methodology of risk metrics was used: the dependence of the relative indicators of cases of diseases with TD were expressed by a quadratic function of the average length of service in the profession. Working conditions at the workplace of smelters at BMZ are determined by the impact of a complex of harmful production factors (class 3.1 and 3.2). The «health index» of the IZ smelters was 32.33 ± 1.33%, i.e. above the average. The dynamics of a wave-like rise and a decrease in the number of cases of diseases among smelters over the course of their service is observed. In comparison with the 1-3 year experience group, there is a probability of occurrence of RR cases of VUT, which, relative to the level in the 1-3 year experience group, gradually decreases, but in periods with 13-15 years of experience, 19-21 years has peaks of increase in the probability ZVUT up to 0.77 and up to 0.7. According to the developed algorithm, the analysis of the general morbidity in smelters was carried out and the «safe experience» was calculated as the basis for professional selection and professional suitability for medical reasons.
NEW ETIOLOGICAL FACTORS OF OCCUPATIONAL HEARING LOSS
Authors:   FGUP ", Pankova V.B. ,   All-Russian Research Institute of Transport Hygiene of Rospotrebnadzor, Moscow, Russia,   FGBU "National Medical Research Center of Otorhinolaryngology" FMBA of Russia, Moscow, Russia,   GBOU DPO Russian Medical Academy of Continuing Postgraduate Education of the Ministry of Health of the Russian Federation, Moscow, Russia, Vilk М.F.
Published: December 2021

Annotation. On the example of railway and air transport, a number of new issues of occupational hearing loss are shown, requiring study and subsequent implementation in practical health care, as new etiological factors in the development of hearing loss. This concerns the factor of labor intensity, which has a potentiating, pathogenetic significance, along with noise, in the development of hearing loss due to the formation of chronic stress, leading to additional ischemia of the vascular stria and damage to the neuroepithelium of the inner ear. There is a need, along with the development of a methodology for assessing the factor of labor intensity for SOUT of workplaces, to determine the criteria for its negative action when used for the examination of the connection between the disease of the organ of hearing and the profession. In the «List of occupational diseases» in clause 2.4.2. indicated diseases associated with exposure to infrasound (IZ), among the manifestations of which, called sensorineural hearing loss bilateral. However, IZ, as well as low-frequency noise (LFN), were not previously considered as significant adverse factors in relation to the hearing organ in mass clinical trials, therefore, there are no expert criteria for the relationship between hearing loss and their impact, which could be applied in practice, which requires accumulation of evidence base for the subsequent substantiation of an independent nosological form of a disease of the organ of hearing, associated with mechanoacoustic exposure.
CLINICAL AND PHENOTYPIC FEATURES OF STROKE IN MEN WORKING UNDER THE INFLUENCE OF HARMFUL PRODUCTION FACTORS
Authors:   FHOBO «Novosibirsk state medical University» Ministry of health of, Novosibirsk, Russia, Poteryaeva E.L. ,   FBUN "Novosibirsk Scientific Research Institute of Hygiene" of the Federal Service for Supervision of Consumer Rights Protection and Human Welfare, Novosibirsk, Russia, Yashnikova M.V. , Smirnova E.L.
Published: December 2021

Abstract: The relevance of studying the features of the course of stroke in workers of high occupational risk remains. On the basis of a comprehensive examination of persons working under conditions of exposure to harmful production factors, phenotypic features were determined. The predominance of middle age, ischemic stroke, atherothrombotic subtype of ischemic stroke was revealed. The high frequency of occurrence of the factor of smoking and alcohol abuse. Moderate stroke severity throughout the acute period. At the time of the development of the disease, adaptation reactions in the form of acute stress and pronounced neurological deficit prevailed.
ALGORITHM FOR EARLY DIAGNOSIS AND PREVENTION OF PROFESSIONAL SENSORINEURAL HEARING LOSS
Authors:   FBSI «Federal research center of hygiene them F.F Erisman» of Rospotrebnadsor, Mytishchi, Russia, Preobrazhenskaya E.A. , Sukhova A.V. , Kryuchkova E.N.
Published: December 2021

Abstract: The aim of the study is to develop an algorithm for early diagnosis and prevention of professional neurosensory hearing elasticity (PNST). A comprehensive audiological survey of 600 miners aged 37 to 58, with 10 to 35 years of experience in noise conditions above the PDU for 7-21 dBA (class 3.1-3.3) was carried out. Based on the studies, an algorithm of early diagnosis and prevention of PNST, consisting of 3 blocks: I - hygienic (assessment of working conditions and risk categorization), II - clinical diagnostic, based on modern audiological methods of hearing research with the selection of diagnostic markers of risk of PNST, III - preventive, including the development of individual hearing preservation programs. The developed algorithm allows in 65-75% of cases to identify changes in the auditory analyzer at the preclinical stage, to clarify the nature and localization of the auditory analyzer, which is important in the development of therapeutic and preventive measures.
AGE AND GENDER FEATURES OF FORMATION SOMATIC PATHOLOGIES AT INFLUENCE OF NOISE
Authors:   Ural State Medical University, Ekaterinburg, Russia, Roslaya N.A. , Bazarova E.L. ,   Private Healthcare Unit «Tirus», Verkhnyaya Salda, Russia, Osherov I.S.
Published: December 2021

Abstract: Relevance. Noise is the most common harmful factor in the production of titanium alloys. The aim of the study is to identify age and gender features of the formation of general somatic morbidity associated with the impact of industrial noise at a large metallurgical enterprise. Scope and methods. The study compared the prevalence of chronic pathology of 4681 people who have contact with noise above 80 dBA, and those who are not exposed to noise using the methodology of occupational risk analysis of the Research Institute of Occupational Medicine. academician N. F. Izmerov according to the results of a periodic medical examination The results. The formation of general somatic pathology of many systems of the body under the influence of industrial noise occurs from the first years of operation. An increased risk of developing ear pathology was identified with work experience of more than 7 years. Men under the influence of noise had a significantly higher prevalence of diseases of the ear and digestive organs than women, with higher risks compared to those who were not exposed to noise and a medium to high relationship with working conditions. Conclusion. The revealed features of the formation of general somatic pathology under the influence of industrial noise allow us to recommend the introduction of health and rehabilitation programs from the first years of working in noise, even during the period of adaptation of young workers to the production environment.
RESULTS OF PSYCHOREHABILITATIONAL CORRECTION OF PROFESSIONAL «BURNOUT» SYNDROME OF TEACHERS OF SPECIAL SCHOOLS
Authors:   FSBSI «Izmerov Research Institute of Occupational Health», Moscow, Russia, Suvorov V.G. ,   FSBEI APE «Russian Medical Academy of Continuing Professional Education of the Ministry of Health of the Russian Federation»; Moscow, Russia, Belova T.O.
Published: December 2021

Abstract. There are presented materials concerning psychological features of professional "burnout" syndrome in teachers of correctional schools working with children with intellectual disabilities, as well as the results of the conducted psychorehabilitation measures. Were examined 55 special educational needs teachers, aged 30 - 40 years with work experience from 6 to 12 years with the formed syndrome of professional «burnout». All examined were given a course of psychocorrection. To assess the effectiveness of rehabilitation measures, the MBI test technique before and after psychocorrection was used. A high level of professional "burnout" has been revealed with a predominance in its structure of emotional exhaustion and reduction of professional achievements. The results of the retest indicate the effectiveness of psychocorrectional interventions.
ASSESSMENT EXPERIENCE OF OCCUPATIONAL HEALTH RISK AT THE LEADING METALLURGICAL PLANTS OF THE SVERDLOVSK REGION
Authors:   Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers is a Research Institute of the Russian Agency for Consumers Rights Protection (Rospotrebnadzor)., Yekaterinburg, Russia, Fedoruk A. , Gurvich V.
Published: December 2021

Abstract: The assessment experience of the occupational health risk at the enterprises of mining and metallurgical complex of the Sverdlovsk region has revealed the presence of key challenges. They are related to an impartial evaluation of the predicted and realized risks. These include underestimation of factors of the working environment and process at the stage of identification, monitoring management and evaluation of results. Additionally, there is no data analysis on the health status of workers, including the estimated incidence of temporary incapacity for work. It is suggested to develop a unified preventive system (occupational health service) at the enterprises. It will be possible to form an appropriate database regarding the real situation of working conditions and the health of workers. This system will also establish cause-and-effect relationships and dose-effect dependencies of diseases. Additionally, it will be enforceable to identify the probability of occupational and industrial-related diseases at the group and individual levels.
ASSESSMENT OF PSYCHOSOCIAL FACTORS IN REPRESENTATIVES OF THE SOCIONOMIC PROFESSION IN THE CONTEXT OF THE THREAT OF CORONAVIRUS INFECTION
Authors:   Federal Budgetary Institution of Science «Nizhny Novgorod Research Institute of Hygiene and Occupational Pathology» of Rospotrebnadzor, Nizhny Novgorod, Russia, Fedotova I.V. , Vasilyeva T.N. , Nekrasova M.M.
Published: December 2021

Abstract. The article analyzes the indicators of the professional and personal spheres of social workers who worked in the situation of a new risk factor – the risk of infection with coronavirus infection. Objective: to study resilience and its impact on performance, anxiety, and depression in a group of social workers during the COVID-19 pandemic. Methods: the study involved 38 social workers, all women, among whom psychodiagnostics of indicators of professional and personal spheres was carried out using standard methods. Results: the analysis of the indicators of the professional and personal sphere of social workers revealed, against the background of reduced working capacity, compliance with the test standards of the group's average values of resilience, its components. The group of individuals with subclinically pronounced values of anxiety and depression on the HADS scale differed in low values of resilience and its "control" component from workers with moderate values of these indicators, which was an indication for recommending appropriate psychotherapeutic assistance to them.
TO THE QUESTION OF THE EPIDEMIOLOGICAL ASSESSMENT OF OCCUPATIONAL HEALTH RISK FOR THE DEVELOPMENT OF LOWER BACK PAIN SYNDROME
Authors:   YMRC PHPIW, Yekaterinburg, Russia, Shirokov V.A. , Terehov N.L. , Potaturko A.V.
Published: December 2021

Abstract: The aim of the paper was to study the influence of adverse occupational factors on the prevalence and odds ratio of the development of lower back pain syndrome. A cross-sectional epidemiological survey was performed based on the findings of a periodic medical examination of 2,915 individuals engaged in various working conditions. The greatest adverse effect on the pain syndrome development was caused by a dynamic exercise (OR 5.22 and 95 % of CI – 3.50-7.81), lifting and manual moving of the load (OR 3.01 and 95% of CI -2.41-3.75) as well as an unfavorable working posture (OR 7.10 and 95 % of CI -5.65-8.94).