Tingkat Kecemasan Matematika Siswa SMA Negeri 2 Kerinci Kelas X MIA Sebelum Menghadapi Tes Matematika Berdasarkan Gender dan Hubungannya dengan Hasil Belajar

This research aims to determine differences in student anxiety levels based on gender and the relationship between students\u27 anxiety levels before facing a mathematical test with achievement and then dig deeper information about the causes of anxiety in students. This research uses a mixed method with a sequential explanatory approach. The subjects of this study were students of class X MIA Kerinci Senior High School 2 totaling 100 students. The results of the research showed that students experiencing anxiety before taking a math test as the cause of anxiety is experience, intelligence, preparation, and family. Differences in levels of anxiety based on gender indicate that there is no significant difference between the level of anxiety experienced by male and female students but male students are more anxious than female students the cause is that there have been similar thoughts and goals in terms of achievement so as to make male students neither men nor women experience significant differences in anxiety levels. There is a relationship between the level of anxiety with learning outcomes of 0.43 which is in the category enough and has a positive relationship, namely the higher the level of anxiety, the higher the student learning outcomes. Descriptions of quantitative data indicate that there is no certainty for someone who has an anxiety level will get a definite value

The effects of fabric for sleepwear and bedding on sleep at ambient temperatures of 17°C and 22°C

Mirim Shin,1 Mark Halaki,1 Paul Swan,2 Angus Ireland,2 Chin Moi Chow1 1Exercise, Health and Performance Research Group, Faculty of Health Sciences, The University of Sydney, Lidcombe, 2Australian Wool Innovation Limited, The Woolmark Company, Sydney, NSW, Australia Abstract: The fibers used in clothing and bedding have different thermal properties. This study aimed to investigate the influences of textile fabrics on sleep under different ambient temperature (Ta) conditions. Seventeen healthy young participants (ten males) underwent nine nights of polysomnography testing including an adaptation night. Participants were randomized to each of the three binary factors: sleepwear (cotton vs wool), bedding (polyester vs wool), and Ta (17°C vs 22°C with relative humidity set at 60%). Skin temperature (Tsk) and core temperature (Tc) were monitored throughout the sleep period. Sleep onset latency (SOL) was significantly shortened when sleeping in wool with trends of increased total sleep time and sleep efficiency compared to cotton sleepwear. At 17°C, the proportion of sleep stages 1 (%N1) and 3 (%N3) and rapid eye movement sleep was higher, but %N2 was lower than at 22°C. Interaction effects (sleepwear × Ta) showed a significantly shorter SOL for wool than cotton at 17°C but lower %N3 for wool than cotton at 22°C. A significantly lower %N2 but higher %N3 was observed for wool at 17°C than at 22°C. There was no bedding effect on sleep. Several temperature variables predicted the sleep findings in a stepwise multiple regression analysis and explained 67.8% of the variance in SOL and to a lesser degree the %N2 and %N3. These findings suggest that sleepwear played a contributory role to sleep outcomes and participants slept better at 17°C than at 22°C.Keywords: cotton, polyester, wool, polysomnography, skin temperature, core body temperatur