The Development of Student Worksheet Based on Contextual Approach about Coordination System 11th Grade Senior High School

This research in general is aimed to develop student worksheet base on contextual approach on the coordination system for senior high school in grade 11 using metode of 4-D development. The subjects of this research is one of lecturer majoring in biology at Padang State University, two teachers of SMAN 3 Padang, and 30 students in grade 12 of SMAN 3 Padang as potential users of the product. Data that used in this research is primary data. Instrument of data collection in this research is a questionnaire of validity and practicalicity filled out by expert and students. The result for validity is 91,2% that criteria is very valid. Result for practicalicity from teacher is 90,5% that criteria is very practical and from stucent is 81,3% that criteria is practical.st

PENGEMBANGAN LEMBAR KERJA SISWA (LKS) PRAKTIKUM BERBASIS INKUIRI TERBIMBING PADA MATERI LARUTAN PENYANGGA DI SMA NEGERI 4 SUNGAI RAYA

This research aimed to develop student worksheet for experiment based on guided inquiry in buffer solution at SMA Negeri 4 Sungai Raya which are valid, practical, and effective. The development of student worksheet in this research used Borg & Gall model. The results of this research showed that : (1) This student worksheet was stated as a valid result with an average score 1,00 which classified very high criteria. (2) This student worksheet was stated as a practical result with the percentage of preliminary field testing was 83,71% and 85,65% in main field testing which classified very high criteria. (3) This student worksheet was stated as an effective result with the classical completeness percentage was 76,47%. Based on the results, it can be concluded that the worksheet for experiment based on guided inquiry can be used in learning process.Keywords: Guided Inquiry, Buffer solution, Student worksheet for experiment.

FAKTOR-FAKTOR YANG MEMPENGARUHI PEMANFAATAN CATATAN ATAS LAPORAN KEUANGAN (CALK) OLEH PENGGUNA LAPORAN KEUANGAN DAERAH DI OPD KOTA PALEMBANG

ABSTRACT This research aims to examine the use of Notes to The Financial Statements to the leaders, supervisory, or agencies in regional work organization (OPD) for having a good decision function of government to obtain the valid result, so this research using three variables independent such as, education, experience, and organizational culture. The population in this research was a government agency in Palembang. Samples were selected by using purposive sampling which the criteria was the leaders, supervisory, or agencies. The results showed that the variables of education, experience, socio culture affect significantly positive on the using of Notes to The Financial Statements.

Prospective observational study to evaluate the performance of the BioSure HIV Self-Test in the hands of lay users

ObjectivesIn order to assess whether the BioSure HIV Self-Test could be reliably performed by users at home and to determine whether they were able to perform and correctly interpret the test, we carried out an evaluation study among attendees at a sexual health service.MethodsA prospective observational study of clinic attendees to determine their ability to follow the instructions, complete the test on themselves and correctly interpret the results. The evaluation included interpretation of three dummy (contrived) devices, chosen at random from a sample of 12 devices, to ensure that a sufficient number of all possible test outcomes were included.ResultsTwo hundred participants were recruited. 97.0% (95% CI 93.5 to 98.9) conducted the test so as to achieve a valid result. 99.5% correctly identified the test result. Participants correctly interpreted the result of 94.0% (95% CI 91.4 to 95.9) of 586 contrived devices.ConclusionsThe majority of participants were able to follow the instructions and perform the test in order to get a valid result. Interpretation of the test results was good and the majority of participants were able to correctly read the result of their own and contrived tests. The availability of HIV self-tests will provide another option to increase access to testing particularly for those who may not wish or are unable to access clinical services.

The Optimization of Typical Environmental Issues by LINGO Software

LINGO software with many favorable features such as convenient operation, high running speed, wide application and valid result, has been widely used in solving complicated issues in environmental fields in the past a few years. In this paper, three practical examples in environmental monitoring were introduced and resolved by LINGO software, the reliability of the results was verified and the comparison with other methods was given. The results show that, LINGO software is useful to direct funds and resources’ allocation in environmental monitoring, and it is an effective tool to improve economic benefits and obtain better environmental benefits.

Design and Analysis of Observational Studies

ABSTRACT Appropriate study design forms the basis of any successful organized research. Irrespective of the underlying rationale of the research question, inappropriate design of an experiment or execution of a study may not give a valid result. As defined, the research should have the following characteristics: it should be undertaken within the framework of a set of philosophies, should have an unbiased objective and a design comprising of methods and techniques that have been tested for their validity and reliability. These principles of research clearly emphasize the need for an appropriate study design. The current review focuses on the planning and analysis of an observational study to obtain significant and accurate findings. How to cite this article Suresh KP, Gajendragad MR, Rahman H. Design and Analysis of Observational Studies. Int J Infertil Fetal Med 2014;5(2):33-39.