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Search Results: 1 - 10 of 303 matches for " Dafita Dwi Lestari "
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Socrative in Teaching Tenses: Indonesian Students and Lecturers’ Perceptions  [PDF]
Maslawati Mohamad, Dafita Dwi Lestari, Azizah Mohd Zahidi, Mohd Effendi Mohd Matore
Creative Education (CE) , 2019, DOI: 10.4236/ce.2019.101010
Abstract:
Mastering a language not only involves four language skillslistening, speaking, reading, and writingbut also mastering the grammar and vocabulary of the language. This research was intended to investigate the perceptions of Indonesian undergraduates and their lecturers at the Islamic University of Riau toward the use of Socrative in grammar class specifically tenses. This study employed a quantitative research design. The respondents were 34 sixth-semester undergraduates who were randomly chosen and two grammar lecturers at the English Department of Islamic University of Riau in the academic year 2016/2017. The questionnaire was adapted from the technology acceptance model (TAM) by Davis, which consists of two specific variables: Perceived usefulness and perceived ease of use. Before the questionnaire was employed in this study, a pilot study was carried out to ensure the validity and reliability of the instrument. The findings of the research show the majority of respondents have positive perceptions toward Socrative. The students and lecturers provide positive responses with regard to “perceived usefulness and ease of use” of Socrative in grammar class. It is hoped that this tool not only could be used in grammar class but also in all aspects of English language learning. It is also expected that this research could assist Indonesian educators to teach more creatively.
POLA PENCARIAN PENGOBATAN DI INDONESIA: Analisis Data Susenas 2001
Lestari Handayani,Siswanto Siswanto,Nirmala Ahmad Ma'ruf,Dwi Hapsari
Bulletin of Health Research , 2012,
Abstract: POLA PENCARIAN PENGOBATAN DI INDONESIA: Analisis Data Susenas 2001
Effect of Heavy Metals Pollution to Seawater Quality and Fishery Resources (Case Study on Fish Death in Jakarta Bay)
Lestari,Edward
Makara Seri Sains , 2004,
Abstract: Observation on heavy metals content in sea water were carried out in Jakarta Bay waters in May 2004. Heavy metals observed were Hg, Pb, Cd, Cu, Zn and Ni. This observation is conducted with fishes total death in this waters. Observation is done in Ancol beach 1 (3 stations), Ancol beach 2 (4 stations), Cilincing (3 stations), and Dadap River estuary (4 Station). The results showed that the average concentration of Hg, Cd and Cu in Ancol beach 1 were <0.001 ppm respectively, Pb is 0.001 ppm, Zn is 0.004 ppm, and Ni is 0.001 ppm. In Ancol beach 2 the average concentration of Hg, Cd, and Zn were <0.001 ppm, Pb is 0.002 ppm, Cu is 0.001 ppm and Ni 0.0017 ppm. In Cilincing the average concentration of Hg, Cd, and Zn were <0.001 ppm respectively, Pb and Cu were 0.002 ppm, and Ni was 0.0045 ppm. In Dadap River Estuary the average concentration of Hg and Cd were 0.001 ppm, Pb and Zn were 0.0027 ppm, Cu was 0.001 ppm, and Ni between 0.0012 ppm. The concentration of that sixth heavy metals in Ancol beach 1, 2, Cilincing, and Dadap River estuary still lower compared to the Threshold Value (TV) stated by The Office of State Ministry for Life Environment (2004) for sea biota namely 0.001 ppm for Hg and Cd, 0.008 ppm for Pb and Cd, 0.05 ppm for Zn and Ni. That way the concentration of Hg, Pb, Cd, Cu, Zn, and Ni in Ancol beach 1, 2, Clilincing and Dadap estuary not danger for sea biota, while in Ancol beach 3, the average concentration of Hg, Pb, and Cd has danger for sea biota. Thereby total death of fishes in this waters not caused by heavy metals, but by others factors, one of that factors is blooming toxic phytoplankton which produced toxin where sea water change to be red, and this phenomena known as red tide.
MENGENAL "FOSHU" JEPANG
Lestari Handayani
Media of Health Research and Development , 2012,
Abstract: Foshu (Food for Specific Health Use) is processed by the ingredients of some functions in a well balanced body. The effectiveness and safety of each item is scientifically tested on human and animal. The Ministry of Health and Welfare of Japan has the authority to approve Foshu and monitor them strictly to make sure that the consumer get highest quality product. Foshu's purpose is to maintain and improve health in such way i.e. adjusting constipation, lowering cholesterol level, permit greater absorption of mineral, lowering blood pressure, prevent tooth decay and adjust the blood sugar level. Up to April 1998, 100 approval items have been already sold in the Japan market.
Time Step Issue in Unit Hydrograph for Improving Runoff Prediction in Small Catchments  [PDF]
Dyah Indriana Kusumastuti, Dwi Jokowinarno
Journal of Water Resource and Protection (JWARP) , 2012, DOI: 10.4236/jwarp.2012.48079
Abstract: Unit hydrograph is a very practical tool in runoff prediction which has been used since decades ago and to date it remains useful. Unit hydrograph method is applied in Way Kuala Garuntang, an ungauged catchment in Lampung Province, Indonesia. To derive an observed unit hydrograph it requires rainfall and water level data with fine time scale which are obtained from automatic gauges. Observed unit hydrograph has an advantage that it is possible to derive it for various time steps including those with time step less than an hour. In order to get a more accurate unit hydrograph, it is necessary to derive a unit hydrograph with small time step for a small catchment such as those used in this study. The study area includes Way Kuala Garuntang and its tributaries, i.e. Way Simpur, Way Awi with areas are 60.52 km2, 3.691 km2, and 9.846 km2 respectively. The results of this study highlight the importance of time step selection on unit hydrograph, which are shown to have a significant impact on the resulting unit hydrograph’s variables such as peak discharge and time to peak.
Reconstruction of Paleoceanography Significance in the Western Pacific and Atlantic Oceans during the Neogene Based on Calcareous Nannofossil Productivity and Size Variations, Related to the Global Tectonic Events  [PDF]
Santi Dwi Pratiwi, Tokiyuki Sato
Open Journal of Geology (OJG) , 2016, DOI: 10.4236/ojg.2016.68070
Abstract: We investigated the calcareous nannofossils in the western Pacific and Bahama Bank of Caribbean Sea to reconstruct the paleoceanography and correlate with the global events. The absolute abundant of coccolith (number/g) are gradually increased from NN6 throughout NN19 Zone, while the relative abundance of Discoaster is decreased at Sites 782 in the western Pacific Ocean. The changes of the modal and maximum size of Reticulofenestra which are strongly reflected the collapse of sea surface stability, show four times in 8.8 Ma, 6.4 Ma, 5.4 Ma and 3.75 Ma at Site 782. On the basis of relationship between the changes of maximum sizes of Reticulofenestra and nutrient condition, these eutrophication events are clearly traceable to the western Pacific, Bahama Bank, northwestern Pacific Ocean and to the Indian Ocean. Two paleoceanographic events found in 8.8 Ma and 3.75 Ma are interpreted as change to high nutrient condition resulted in the intensification of Asian Monsoon and closure of Panama Isthmus.
The Interactional Approach to the Teaching of Writing and Its Implications for Second Language Acquisition
Lies Amin Lestari
TEFLIN Journal , 2008,
Abstract: Writing is a language skill which is relatively difficult to acquire. A number of efforts have been made to develop the students' writing skill, among others is by applying different approaches to the teaching of writing. This article discusses the interactional approach to the teaching of writing and its implications for second language acquisition.
English Classroom Culture Reformation: How Can It be Done?
Lies Amin Lestari
TEFLIN Journal , 1999,
Abstract: People say that the teaching of English in Indonesia is unsuccessful. Senor High School graduates, after having been studying English for six years, are unable to use the language in daily communication. One of the causes of the failure, in my opinion, is our classroom a€ culture' that is not conducive to the learning process. In the classroom students are supposed to sit nicely, listen to the teacher attentively and are obedient to him. The teacher is the only one who is supposed to know everything and therefore becomes the one who dominates the classroom. If this culture, especially during the English class, is not reformed, I think, whatever efforts under
The Interactional Approach to The Teaching Of Writing and Its Implications for Second Language Acquisition
Lies Amin Lestari
TEFLIN Journal , 2006,
Abstract: Writing is a language skill which is relatively difficult to acquire. A number of efforts have been made to develop the studentsa€ writing skill, among others is by applying different approaches to the teaching of writing. This article discusses the interactional approach to the teaching of writing and its implications for second language acquisition.
A Sociolinguistic Analysis of "Greeting" and "Introducing": A Preliminary Study of Texts in English Textbooks Used at Junior High School
Lies Amin Lestari
TEFLIN Journal , 1997,
Abstract: : The introduction of the 1994 Curriculum and its meaningfulness approach (Pendekatan Kebermaknaan) encourages textbook writers and publishers to publish textbooks in order to meet the needs of both teachers and students for the learning process. That is why at present textbooks of any subjects, including English, are flooding the market. There are some criteria that need to be considered before choosing a textbook for an English class; among others are the authenticity of the language as it is used by the native speakers and its cultural appropriateness (flicker, 1975). This article attempts to analyze three textbooks which are widely used at junior high schools in Surabaya and its nearby towns from the sociolinguistic point of view. The findings show that there are some words or sentences that are sociolinguistically inappropriate and unacceptable eventhough as a whole the textbooks are good and can be used for teaching.
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