Head and Neck Cancer Trends in Semarang: An analysis of ASR and ASCR

Background: The sustainable incidence data of Head and Neck Cancer is poorly described in Indonesia. There was no large-scale epidemiological study of head and neck cancer in Indonesia, especially in Semarang and surrounding areas. Whereas, by knowing the distribution of sex and age in the incidence data could indicate changes in patterns of cancer that occur every year. Aim: This research aim to determine the distribution of head and neck cancer based on anatomic site, age and sex by counting the Age Standardization Rates (ASR) and Age Standardization Cancer Ratio (ASCAR) score Methods : This research was a retrospective observational descriptive study using the medical records of Head and Neck Cancer Patients from Anatomical Pathology Laboratory of Kariadi Central Hospital / Medical Faculty Diponegoro University and Waspada Laboratory in 2010- 2014. Collected data were tabulated manually using Microsoft Excel and analyzed and presented descriptively in table or graphic form Result: The incidences of head and neck cancer were varies every year. The nasopharyngeal cancer seems to be the most common head and neck cancer diagnosed during 2010- 2014. ASCR and ASR in male and female were different in certain head and neck cancer cases. Generally, ASR in male was higher than in females. Conclusion: The trends of head and neck cancer mostly in men. Based on age it distributed mostly in age group 40- 44.Nasopharyngeal cancer is the most cases diagnosed in this period in both male and female and followed with the neoplasm of nasal cavity and middle ear. Age Standardization used in this research allows this research’s result to be compared with the result in another population which used the same method. Keywords Head and Neck Cancer, ASR, ASC

PENGARUH EFIKASI DIRI MATEMATIKA TERHADAP PRESTASI BELAJAR MATEMATIKA SISWA DI MASA PANDEMI COVID-19

The purpose of this study was to determine the magnitude of the effect of mathematics self-efficacy on students' mathematics learning achievement during the Covid-19 pandemic. The research method is ex-post facto quantitative research. The sample in this study was class XI high school students in Bulukumba Regency with a total of 144 students. The data analysis technique in this study is simple linear regression analysis with normality test, linearity test and hypothesis testing using SPSS 16. The results of hypothesis testing indicate that mathematics self-efficacy has a positive and significant effect on mathematics learning achievement of class XI high school students with a significant level of 0, 05 and the value of the regression coefficient of the mathematical self-efficacy variable is 0.240. The magnitude of the effect of mathematics self-efficacy on students' mathematics learning achievement is 18.6%. The conclusion of this study is that mathematics self-efficacy has a positive and significant effect on high school students' mathematics learning achievement.Tujuan dari penelitian ini adalah untuk mengetahui besarnya pengaruh efikasi diri matematika terhadap prestasi belajar matematika siswa di masa pandemi Covid-19. Metode penelitian adalah penelitian kuantitaftif ex-post facto. sampel dalam penelitian ini adalah siswa kelas XI SMA di Kabupaten Bulukumba dengan jumlah 144 siswa.  Teknik analisis data dalam penelitian ini adalah analisis regresi linier sederhana dengan uji normalitas, uji linieritas dan uji hipotesis dengan menggunakan SPSS 16. Hasil uji hipotesis menunjukkan bahwa efikasi diri matematika berpengaruh positif dan signifikan terhadap prestasi belajar matematika siswa kelas XI SMA dengan taraf siginifikan 0,05 dan nilai koefisien regresi variabel efikasi diri matematika sebesar 0,240. Besarnya pengaruh efikasi diri matematika terhadap prestasi belajar matematika siswa yaitu 18,6 %. Kesimpulan penelitian ini yaitu efikasi diri matematika berpengaruh positif dan signifikan terhadap prestasi belajar matematika siswa SM

Investigating Malay language writing proficiency level among upper secondary school students

This paper aims to present the findings of a research on writing proficiency in Malay language of upper secondary schools students in Malaysia. The research is designed to compare writing patterns of urban and rural students from four different zones. The focus of analysis is divided into three aspects, namely, language used, discourse and idea conceptualization. In language used, the focus is on sentence structure, dialect usage and punctuation while discourse looks at interesting phrases. The ideas in the writings are evaluated holistically by looking at the clarity, maturity and relevance of ideas presented. The respondents of this research are selected from five different zones; Kedah (northern zone), Kelantan (eastern zone), Negeri Sembilan (central zone), Sabah and Sarawak (East Malaysia). The total number of respondents is 1524 students. Generally, the findings of the research show that the writing proficiency of the students is at satisfactory level. However, there are differences in the students’ writing performance within the zones

Perlindungan Hukum Terhadap Konsumen dalam Perjanjian Jual Beli Sepeda Motor Bekas Oleh Showroom di Palangka Raya

Tujuan yang ingin dicapai dalam penulisan yang akan dilaksanakan antara lain yaitu: (1) Untuk mengetahui dan mengkaji proses kegiatan jual beli sepeda motor bekas melalui perjanjian jual beli yang dilaksanakan oleh Showroom Motor di Palangka Raya. (2) Untuk mengetahui latarbelakang mengapa adanya perlindungan hukum terhadap konsumen/pembeli motor bekas di Palangka Raya. (3) Untuk mengetahui dan mengkaji perlindungan hukum terhadap konsumen dalam perjanjian jual beli sepeda motor bekas berdasarkan Undang-Undang Perlindungan Konsumen. Metode penelitian ini adalah penelitian lapangan tentang proses kegiatan jual beli sepeda motor bekas di Showroom motor di Palangka Raya, objek penelitian ini adalah praktik jual beli motor bekas, subjek penelitian ini adalah para pembeli dan penjual motor bekas di Palangka Raya, data yang digunakan dalam penelitian ini adalah data primer dan data sekunder, tekhnik pengumpulan data melalui wawancara dan dokumentasi, tekhnik analisis data melalui tahapan pengumpulan data, di sajikan dan penarikan kesimpulan. Hasil penelitian bahwa proses kegiatan jual beli sepeda motor bekas melalui perjanjian jual beli yang dilaksanakan oleh showroom motor di Palangka Raya ada tidak showroom yang tidak memberikan perjanjian garansi kepada konsumen ada 4 responden dari pihak showroom dan 1 responden showroom yang memberikan garansi. Adapun latarbelakang perlunya perlindungan hukum terhadap konsumen/pembeli motor bekas di Palangka Raya, agar jika ada komplen yang tidak dapat dimusyawarahkan secara damai, maka dapat dilakukan pengajuan permohonan penyelesaian ke pengadilan konsumen. English The goal in writing that will be implemented include: (1) To identify and assess the process of buying and selling used motorcycles through a purchase agreement executed by the Motor Showroom in Palangka Raya. (2) To find out the background of why the legal protection of the consumer / buyer motorcycle used in Palangka Raya. (3) To identify and assess the legal protection of the consumer in the purchase agreement used motorcycle by the Consumer Protection Act. This research method is a field research on the process of buying and selling used motorcycles in the showroom of motorcycles in Palangka Raya, the object of this study is the practice of buying and selling second-hand motorcycle, the subject of this study is the buyers and sellers of used motorcycles in Palangka Raya, the data used in the study this is the primary data and secondary data, techniques of collecting data through interviews and documentation, data analysis techniques through the stages of data collection, in the present and conclusion. The research concludes that the process of buying and selling used motorcycles through a purchase agreement executed by motor showroom in Palangka Raya there is a showroom that does not give a warranty agreement to consumers there are 4 respondents from the showroom and one respondent dealer / showroom that provides a warranty. As for the background of the need for legal protection of the consumer / buyer motorcycle used in Palangka Raya, so if there complain that can not be discussed peacefully, then do the submission to the consumer court settlement

Properties of concrete containing recycled PET bottles as sand replacement

The modern lifestyle along with the new technologies have contributed the increasing of waste materials production. Plastic is one of the waste materials which is non-disposal and non-biodegradable material that can remain on earth without degradation. The world produces nearly 150 million tonnes of plastics per year, which is nearly 4.8 tonnes per second and a per capita production of 25 kg/year [1]. The Malaysian Plastic Industry (2012), reported that Malaysia is one of the largest plastics producers in Asia [2]. In Malaysia, extensive consumption of PET bottle is one of the contribution to the increasing growth of plastic waste disposed in landfills. Reutilization of PET wastes in concrete technology is one of the innovative solution for reduce the materials cost and solve some of the plastics waste problems .