Coronavirus disease (COVID-19) was firstly identified in Wuhan, China. By 23rd January 2020, China’s Government made a decision to execute lockdown policy in Wuhan due to the rapid transmission of COVID-19. It is essential to investigate the land surface temperature (LST) dynamics due to changes in level of anthropogenic activities. Therefore, this study aims (1) to investigate mean LST differences between during, i.e., December 2019 to early March 2020, and before the emergence of COVID-19 in Wuhan; (2) to conduct spatio-temporal analysis of mean LST with regards to lockdown policy; and (3) to examine mean LST differences for each land cover type. MODIS data consist of MOD11A2 and MCD12Q1 were employed. The results showed that during the emergence of COVID-19 with lockdown policy applied, the mean LST was lower than the mean LST of the past three years on the same dates. Whereas, during the emergence of COVID-19 without lockdown policy applied, the mean LST was relatively higher than the mean LST of the past three years. In addition, the mean LST of built-up areas experienced the most significant differences between during the emergence of COVID-19 with lockdown policy applied in comparison to the average of the past three years.
Nadiem Makarim as Minister of Education and Culture of Indonesia explained his ideas about #MerdekaBelajar. One of the points is the replacement of the National Standard School Examination (USBN) into a Minimum Competency Assessment and Character Survey. There are three components which are assessed namely literacy, numeracy and character. This concept needs to be explored by linking it with preexisting education concepts in order to be assessed about their conceptual and praxis. Through qualitative research library research shows the concept of #Merdeka Belajar is very consistent with Ibn Sina's view of education. Ibn Sina in his writings and concepts also emphasizes the importance of reading, mathematics and science and noble morals. The concept of #MerdekaBelajar and Ibn Sina's thinking in harmony and complementary. Although there are differences in the importance of developing physical aspects that have not been discussed in the Minimum Competency Assessment and Character Survey in Indonesia.
This study aimed to determine the effect of prostaglandin F2α (PGF2α) administration on improving semen quality and testosterone levels on Bali cattle. This study used 3 Bali cattle aged 2, 3.5, and 5 years old. The sample used in this study was Bali cattle semen. In this study, the Latin Square Design was used with three different treatments were administered over three time periods. The treatments performed were P1 (5 mL physiological NaCl), P2 (25 mg prostaglandin), and P3 (37.5 mg prostaglandin) while treatment period was three weeks of treatment administration, which were 1st. 2nd, and 3rd week. Blood collected through coccygea vein 30 minutes after treatment to measure testosterone levels using enzyme-linked immunosorbent assay (ELISA) technique. Statistical analysis showed that PGF2α administration at a dose of 25 mg and PGF2α at a dose of 37.5 mg had no effect (P0.05) on volume, color, pH, consistency, concentration, and motility of Bali cattle spermatozoa. The volume of semen obtained from P1; P2; and P3 were 6.5±0.9; 6.3±0.6; and 6.2±1.2 mL, respectively. The color of the semen in P1, P2, and P3 were beige and milky white. The pH in groups P1; P2; and P3 were 6.7±0.6; 7.1±0.2; and 6.5±0.2, respectively. Spermatozoa concentration in P1; P2; and P3 were 1,328±96.43 x 106 cells/mL; 1,354±102.19 x 106 cells/mL; and 1,353.3±88.55 x 106 cells/mL, respectively. Spermatozoa motility in P1; P2; and P3 were 73.3±2.8%; 71.6±2.8%; and 73.3±2.8%, respectively. Testosterone levels in P1 and P3 were 5.05±0.22 and 6.74±1.38 ng/mL, respectively (P0.05). Based on the results of this study, it was concluded that the administration of PGF2α does not affect semen quality but can increase the level of testosterone on Bali cattle.
Background:The coronavirus disease 2019 (COVID-19) pandemic has impacted the health-related quality of life (HRQoL) and mental health worldwide. However, its impact on medical students in Indonesia has not been well documented. This study aimed to evaluate HRQoL and mental health in 729 Indonesian medical students during the COVID-19 pandemic. Material/Methods:We conducted a cross-sectional study from 31 August to 30 September 2021. The study instrument was an online questionnaire that was distributed via social media platforms. The 12-item short form version 2 (SF12v2) was used to measure HRQoL, and the 21-item Depression, Anxiety, and Stress Scale (DASS-21) was used to measure mental health. Results:From 729 Indonesian medical students included in the analyses, 37.3% had impaired physical component and 66.9% had impaired mental component of HRQoL. The determinants were medical students' island of residence, history of hospitalization, and family member's hospitalization and death due to COVID-19. Concerning mental health, the prevalence of reported symptoms of depression, anxiety, and stress were 45.4%, 65.2%, and 60.9%, respectively. Sex, study method, grade, previous COVID-19 disease severity, comorbidities, previous learning experience, and history of family isolation were identified as the determinants of mental health. Conclusions:This study highlights the adverse effects of COVID-19 on HRQoL and mental health in Indonesian medical students. The results identified key associations, including SARS-CoV-2 infection and comorbidities experienced by the students, the health of their families, including grief following bereavement, and the effects of social isolation during the pandemic.
The junior high school students almost every day activities of the school to get an extra snack energy after a long day at school. However, snack food in schools and surrounding areas can not be secured, including the safety of additives. To avoid students from the negative impact of food additives, the needed knowledge about the additives. Knowledge of these additives have an important role in shaping the attitude of the selection of snack food. This study aim to determine correlation between knowledge of additives and attitude about selection of snack food students at SMPN 74 Jakarta. The research was conducted at SMPN 74 Jakarta on April-May 2016. The method of this study was descriptive method with survey techniques through correlational studies. The sample of this study was 166 students. Prerequisite test results showed that the data was normally distributed and homogeneous. Regression model Ŷ= 127.35 + 2.23X that was significant and had a linear correlation. Based on hypothesis testing, the value of the correlation coefficient of 0.76 and a coefficient of determination of 58%. Based on these results, it can be concluded that there was a positive correlation between knowledge about additives and attitude about selection of snack food students at SMPN 74 Jakarta and knowledge about additives contributed 58% to attitude about selection of snack food students at SMPN 74 Jakarta. Keywords : Additives, attitude, knowledge, selection of snack food PENDAHULUANPada umumnya, anak-anak usia sekolah menghabiskan sepertiga sampai setengah dari waktunya untuk beraktivitas di luar rumah antara lain di sekolah, tempat les atau bermain di sekitar rumah. Aktivitas yang tinggi ini menyebabkan mereka cepat merasa lapar sehingga mendorong mereka untuk membeli makanan jajanan yang ada di sekitarnya.Makanan jajanan adalah makanan dan minuman yang diolah oleh produsen makanan di tempat penjualan dan disajikan sebagai makanan siap santap untuk dijual bagi masyarakat umum (Menteri Keseharan RI, 2003). Secara umum, makanan jajanan yang disukai adalah makanan yang memenuhi selera atau cita rasa yaitu dalam hal rupa, warna, bau, rasa, suhu, dan tekstur (Almatsier, 2013). Jenis makanan jajanan yang menjadi favorit bagi sebagian besar anak-anak yaitu cokelat, permen, jeli, biskuit, snack, es teh, dan es sirup (Nuraini, 2007). Agar BIOSFER: JURNAL PENDIDIKAN BIOLOGI (BIOSFERJPB)2016, Volume 9 No 2, 45-53
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