The researcher has analyzed the effect of temperature, time, and electrical current of electroplating process on tensile strength, bending strength and hardness of low carbon steel. The aim of this research is to know the effect of temperature, time, and electrical current as the parameters of electroplating process on tensile strength, bending strength and hardness of low carbon steel plate material treated using nickel and chrome coating materials. Coating process was operated with variations in temperature of 50 ° C, 55 ° C, 60 ° C; coating time of 5 minutes, 10 minutes, 15 minutes; and electrical currents of 4 A, 5 A, 6 A. Tensile strength and buckling tests were conducted using a versatile test machine (Universal Testing Machine) and hardness test with Vickers method. The tensile strength test results show that the higher temperature, time and electrical current during the coating process, give the greater of tensile strength value (from 307 N / m 2 to 376 N /m 2), as well as buckling strength testing.The smaller of buckling strength value from 11.5 kg / m 2 to 7.5 kg / mm 2. Hardness test results indicate a significant increase in the value of hardness in the temperature variation, time, and the electrical current coating, where the hardness value is from 89.3 HV to 100 HV.

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Highlight:1. One of the major causes of morbidity and mortality in diabetes mellitus patients is coronary heart disease (CHD).2. The risk factors for coronary heart disease in type 2 diabetes mellitus patients were observed.3. The risk factors of CHD more commonly found in T2DM patients were high-risk age, male sex, hypertension and dyslipidemia.Abstract:Background: Diabetes mellitus is a metabolic syndrome that becomes a concern in almost all countries in the world, particularly developing countries. Changes in lifestyle and genetic factors are causing the incidence of this disease to continue to increase every year. Nowadays, type 2 diabetes mellitus (T2DM) caused by insulin resistance is the most common kind. One of its complications known as a major cause of morbidity and mortality in patients with diabetes is coronary heart disease (CHD). Insulin resistance can lead to the atherosclerosis process that is the basis of coronary heart disease. It is said that conditions of hyperglycemia, hypercoagulable state, and high cholesterol can induce the process of atherosclerosis. Besides diabetes mellitus, the other risk factors that increase the incidence of CHD are sex, age, family history, dyslipidemia, smoking, hypertension, and obesity. Objective: The purpose of this study was to describe the risk factors for coronary heart disease in patients with type 2 diabetes mellitus in Dr. Soetomo General Academic Hospital, Surabaya, Indonesia. Materials and Methods: A cross-sectional study of diabetes mellitus patients with coronary heart disease was conducted in Dr. Soetomo General Academic Hospital from 1 January 2014 to 31 December 2014. Data were taken from medical records at the Department of Internal Medicine. Incomplete medical records were not included in this study. Risk factors analyzed were age, sex, history of hypertension and dyslipidemia. Results of this study were presented in a frequency distribution table. Results: Based on the data of 70 samples, risk factors of CHD in T2DM patients are found as follows: 44 (62.9%) samples were male, 56 (80%) high-risk aged group, 48 (68.6%) with dyslipidemia, and 50 (71.4%) with hypertension, while 24 (34.3%) samples had three risk factors at once. Conclusion: High-risk aged, male sex, hypertension, and dyslipidemia are more commonly found in T2DM patients with CHD. The more risk factors that one may have will increase the occurrence of cardiovascular disease within 10 years forward.

Online saat ini merupakan pembelajaran yang sering digunakan para dosen di masa pandemi COVID-19, namun belum diketahui secara akurat mengenai kelebihan dan kekurangannya bagi proses pembelajaran pendidikan jasmani di tingkat Universitas. Jenis pendekatan dalam penelitian ini adalah kualitatif. Partisipasi dalam penelitian ini adalah mahasiswa PJKR (n=15, 10 laki-laki, 5 perempuan) dari Universitas Suryakancana. Teknik pengumpulan data dilakukan melalui wawancara via whatsApp dan zoom meeting. Aspek-aspek yang ditanyakan dalam wawancara adalah: apakah mahasiswa PJKR memiliki sarana dan prasarana untuk melaksanakan pembelajaran online, apakah pelaksanaan pembelajaran online dapat memutus mata rantai penyebaran COVID-19 dikalangan mahasiswa PJKR dan bagaimana persepsi mahasiswa PJKR mengenai pembelajaran online. Analisis data penelitian dilakukan melalui tiga tahapan, yaitu pengumpulan data/informasi, mengelompokan hasil wawancara dan membuat kesimpulan. Hasil wawancara menunjukan bahwa para mahasiswa PJKR dari tingkat I hingga IV rata-rata memiliki sarana dan prasarana, seperti smartphone dan laptop untuk melaksanakan pembelajaran online, pembelajaran online menjadi cara efektif untuk memutus rantai COVID-19 dikalangan mahasiswa dan dosen, dan pembelajaran online pada mata kuliah pendidikan jasmani memiliki kelebihan maupun kekurang ketika digunakan di era COVID-19.  Dengan demikian pembelajaran online dapat memfasilitasi pembelajaran tanpa adanya kontak langsung antara mahasiswa dengan dosen dan dapat dilakukan kapan dan di mana saja, sehingga bisa menjadi rujukan dan informasi bagi dosen untuk melaksanakan proses pembelajaran pendidikan jasmani. Analysis of the advantages and disadvantages of online learning during the covid-19 pandemic  Abstract: Online is currently a lesson that is often used by lecturers during the COVID-19 pandemic, but it is not known accurately about the advantages and disadvantages for the physical education learning process at the university level. The type of approach in this research is qualitative. Participation in this study was PJKR students (n = 15, 10 male, 5 female) from Suryakancana University. Data collection techniques were carried out through interviews via WhatsApp and zoom meetings. The aspects that were asked in the interview were: do PJKR students have the facilities and infrastructure to carry out online learning, whether the implementation of online learning can break the chain of spreading COVID-19 among PJKR students and how the perceptions of PJKR students about online learning. The research data analysis was carried out in three stages, namely collecting data/information, classifying the results of the interviews and making conclusions. The results of the interview showed that PJKR students from level I to IV on average had facilities and infrastructure, such as smartphones and laptops to carry out online learning, online learning is an effective way to break the COVID-19 chain among students and lecturers and online learning in physical education courses has both advantages and disadvantages when used in the COVID-19 era. Thus online learning can facilitate learning without direct contact between students and lecturers and can be done anytime and anywhere so that it can be a reference and information for lecturers to carry out the physical education learning process.