Analisa Ketangguhan Dan Perubahan Struktur Mikro Patahan Akibat Heat Treatment Dan Variasi Sudut Impact Pada Baja ST 60

Tujuan dalam penelitian ini adalah untuk menganalisa: (1) Ketangguhan baja St 60 akibat heat treatment dengan suhu 600 °C dan dengan variasi sudut α = 90° dan α = 120°. (2) Ketangguhan baja St 60 akibat heat treatment dengan suhu 900 °C dan dengan variasi sudut α = 90° dan α = 120°. (3) Bentuk patahan baja St 60 setelah mengalami perlakuan panas dan uji ketangguhan dengan variasi sudut α = 90° dan α = 120°. Desain penelitiannya adalah penelitian eksperimental yang dilakukan di laboratorium. Teknik analisis data menggunakan analisis deskriptif. Hasil penelitian adalah baja St 60 setelah dipanaskan, ketangguhan baja akan meningkat. Serta pada struktur mikro patahan baja St 60 terjadi fenomena ductile to brittle transition, salah satu penyebab fenomena ini adalah laju regangan tinggi. awalnya merupakan material ulet tetapi mengalami patah getas. Transisinya juga bisa diamati dari permukaan patahan, akan tampak serabut-serabut pada patahan yang benar-benar bersifat ulet, dan tampak butiran-butiran kecil yang terlihat mengkilap pada patahan yang benar-benar bersifat getas

Pengenalan Computational Thinking untuk Guru-guru di Kabupaten Purwakarta

COMPUTATIONAL THINKING INTRODUCTION FOR TEACHERS IN PURWAKARTA. The changing needs of the industrial world must always be responded quickly by the world of education. The needs of the industrial world change along with technological developments. Currently, the industry has entered the 4.0 era or better known as the digital industry. Today's society only views computers only as tools, not as a science to educate, even negative when viewed from media notifications that report many cases of technology abuse. This causes parents to tend to limit their children's use of technology. If children who incidentally are the future of the nation are limited or even prohibited from using technology, of course Indonesia will not be able to compete in the digital era of industry. This mindset must be straightened out, that the computer is not only a tool but also a benchmark for thinking patterns. Community service activities will take place in Purwakarta district in the form of counseling and learning Computational Thinking. Beginning with a face-to-face seminar with lecture learning methods, and questions and answers. After the teachers received counseling, then we facilitated their students to test their computational thinking skills through the Bebras Challenge, in collaboration with the NBO Bebras Indonesia

Risk Factor of Mortality Among Covid-19 Infected Doctor in East Java, Indonesia

Introduction: The report of doctors who died with COVID-19 in Indonesia was high and influenced by several factors. This study examined COVID-19 infected doctors and mortality risk factors in East Java. Material and Methods: This observational cohort study was conducted among doctors infected with COVID-19 in East Java during March 2020-September 2021 and collected the COVID-19 infected doctors' deaths report. Doctors received a questionnaire on the status of COVID-19, history of covid-19 infection, age, sex, type of doctor, type of specialization and resident, pregnancy, underlying disease and nutritional status. All data were described and potential risk factors' association was analyzed. Results: We reported 2041 doctors infected with COVID-19. Majority of them (52,5%) was male, 162 doctors were more than 59 years old, 162 doctors (7,9%) were died and 41,4% was general practitioner. The odds ratio in each risk factor for mortality was older age doctors 15,468 (95% CI 10,587-22,601), male 6,128 (95% CI 3,906-9,614), general practitioner 2,461 (95% CI 1,769-3,423), doctors with underlying disease 39,842 (95% CI 23,077-68,798), Type II diabetes mellitus 82,504 (95% CI 42,767-159,162), cardiovascular disease 50,152 (95% CI 16,672-150,866), hypertension 19,425 (95% CI 10,528-35,840), Chronic Obstructive Pulmonary Disease 5,52 (95% CI 0,610-49,992), Asthma 2,091 (95% CI 0,626-6,986), Obesity 30.750 (95% CI 15,293-61,828) and Pregnant doctors 43.013 (95% CI 10.986-168.414) (p<0,05). Conclusion: Older age, male, general practitioner, doctors with underlying disease, cardiovascular disease, Type II diabetes mellitus, hypertension, chronic obstructive pulmonary disease, asthma, obesity, pregnant doctors had been mortality risk factors among COVID-19 infected doctors