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All Journal Edumatsains Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Matematika Sains dan Teknologi Inteligensi : Jurnal Ilmu Pendidikan
Anna Ratnaningsih, Anna
Universitas Terbuka
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Other

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KONSENTRASI TIMBAL (Pb) PADA PERAIRAN DI SEKITAR TELUK JAKARTA Rumanta, Maman; Latief, Amril; Rahayu, Ucu; Ratnaningsih, Anna; Nurdin, Gusti
Jurnal Matematika Sains dan Teknologi Vol 9 No 1 (2008)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

he purpose of this study is to get information about river that has the greatest contribution to cause Pb pollution in the Jakarta Bay. Nine (9) of 13 rivers flowing into Jakarta Bay were chosen. They were Citarum, Bekasi, Cilincing, Marunda, Ciliwung, Sunter, Cideng, Angke, and Cisadane. Sampling were taken in two periods of times, rainy and dry season of 2006 with triple repeatations. pH and temperature of samples as proponent data were measured insitu. Pb concentration in the water of the river was measured by using AAS flame in the laboratory of Balai Penelitian Tanah Bogor. Data was analyzed statistically (one way ANOVA and t-test) by using SPSS 11.5 software. It was shown that Pb concentration of estuary water surrounding Jakarta Bay has been exceeding threshold level. There was a tendency that Pb concentrations of water in rainy season are lower than that in dry season except in Ciliwung River. The anomaly of Ciliwung River was probably caused by some industries which throw their wastes into Ciliwung River in the rainy season. It was concluded that all of 9 rivers have a significant contribution to Pb pollution in Jakarta Bay, and the most was from Ciliwung River.
ANALISIS KANDUNGAN BORAKS PADA MAKANAN: STUDI KASUS DI WILAYAH KECAMATAN PAMULANG, TANGERANG SELATAN Rumanta, Maman; Iryani, Krisna; Ratnaningsih, Anna
Jurnal Matematika Sains dan Teknologi Vol 17 No 1 (2016)
Publisher : LPPM Universitas Terbuka

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Abstract

This study aimed to analyze borax content in food and the effects of food processing on the content of borax in food. This research adopted a survey method. Food samples were obtained from the traditional and modern markets, elementary schools, and supermarkets available in the region of Pamulang Subdistrict. Sampling was done by using a purposive technique. Each sample was qualitatively analyzed for its borax content using a borax test kit. The detected food was then analyzed by using a qualitative analysis (i.e., there are four categories of data); one sample per category was taken to be analyzed quantitatively using the HPLC method in the Laboratorium of Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. The treatment of food containing the highest level of borax) was conducted by boiling them during a certain period of time (i.e., 5 minutes, 15 minutes, and 30 minutes) and then frying them until well cooked (was not burnt). The collected data were then analyzed descriptively. The results showed that 54% of the samples obtained from the Elementary Schools positively contained borax; as much as 74% of the food samples obtained from traditional markets contained borax positively; while all samples coming from the supermarkets did not contain borax. The content of borax in the detected food in this research ranged between 560 mg/kg up to 17,640 mg/kg. The highest content of borax found in yellow wet noodles (17,640 mg/kg) was far above the maximum level specified by EFSA (2013), that is as much as 4,000 mg/kg. The boiling process was quite effective in lowering the level of borax in food, while the frying process did not actually reduce the level of borax in food. Penelitian ini bertujuan untuk menganalisis kandungan boraks pada makanan dan pengaruh pengolahan makanan terhadap kandungan boraks pada makanan. Penelitian ini dilakukan dengan metode survei. Jenis makanan yang dijadikan sampel dalam penelitian ini adalah jenis makanan yang diperoleh dari pasar tradisional dan modern, sekolah dasar, dan supermarket di wilayah Kecamatan Pamulang. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Setiap sampel dianalisis kandungan boraksnya secara kualitatif menggunakan test kit boraks. Selanjutnya, makanan yang telah terdeteksi oleh analisis kualitatif (ada empat kategori data), diambil satu sampel per kategori untuk dianalisis secara kuantitatif menggunakan metode HPLC di Laboratorium Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. Makanan yang terdeteksi mengandung boraks paling tinggi diperlakukan dengan cara direbus dalam beberapa rentang waktu (5 menit, 15 menit, dan 30 menit) dan digoreng sampai matang (tidak sampai gosong). Data yang dikumpulkan dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa 54% dari sampel makanan yang diperoleh dari Sekolah Dasar positif mengandung boraks; sebanyak 74% dari sampel makanan yang diperoleh dari pasar tradisional positif mengandung boraks; sementara semua sampel berasal dari supermarket tidak terdeteksi mengandung boraks. Kandungan boraks dalam makanan yang terdeteksi dalam penelitian ini berkisar antara 560 mg/kg sampai dengan 17.640 mg/kg. Kandungan tertinggi ditemukan dalam mie basah kuning (17.640 mg/kg) jauh di atas kadar maksimum yang ditentukan EFSA (2013) sebanyak 4.000 mg/kg. Proses perebusan cukup efektif dalam menurunkan kadar boraks dalam makanan, sedangkan proses penggorengan tidak mengurangi kadar boraks dalam makanan.
Pengaruh Kadmium terhadap Gangguan Patologik pada Ginjal Tikus Percobaan Ratnaningsih, Anna
Jurnal Matematika Sains dan Teknologi Vol 5 No 1 (2004)
Publisher : LPPM Universitas Terbuka

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Abstract

Once of environmental pollution is heavy metal cadmium that causes toxic effect to the human and animal life. This research is to identify the effect of cadmium on kidney function. Cadmium was administered by adding it in drinking water. This study was performed by using four cadmium’s concentrations on drinking water which are 0 mg/L (control); 0.06 mg/L; 6.60 mg/L and 66.00 mg/L. Observation was conducted during 0 week; 2 week; 4 week; 6 week and 8 week. The failure of kidney function is indicated by accumulation of cadmium on the kidney and protein contens in the urin of Wistar rats. The result showed that the exposure of cadmium through drinking water caused pathophysiology effect in rats such as increasing of proteinuria and accumulation of cadmium in kidney. Pathological effect such as cell degeneration of kidney was also observed.
ANALISIS KANDUNGAN BORAKS PADA MAKANAN: STUDI KASUS DI WILAYAH KECAMATAN PAMULANG, TANGERANG SELATAN Maman Rumanta; Krisna Iryani; Anna Ratnaningsih
Jurnal Matematika Sains dan Teknologi Vol. 17 No. 1 (2016)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jmst.v17i1.186.2016

Abstract

This study aimed to analyze borax content in food and the effects of food processing on the content of borax in food. This research adopted a survey method. Food samples were obtained from the traditional and modern markets, elementary schools, and supermarkets available in the region of Pamulang Subdistrict. Sampling was done by using a purposive technique. Each sample was qualitatively analyzed for its borax content using a borax test kit. The detected food was then analyzed by using a qualitative analysis (i.e., there are four categories of data); one sample per category was taken to be analyzed quantitatively using the HPLC method in the Laboratorium of Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. The treatment of food containing the highest level of borax) was conducted by boiling them during a certain period of time (i.e., 5 minutes, 15 minutes, and 30 minutes) and then frying them until well cooked (was not burnt). The collected data were then analyzed descriptively. The results showed that 54% of the samples obtained from the Elementary Schools positively contained borax; as much as 74% of the food samples obtained from traditional markets contained borax positively; while all samples coming from the supermarkets did not contain borax. The content of borax in the detected food in this research ranged between 560 mg/kg up to 17,640 mg/kg. The highest content of borax found in yellow wet noodles (17,640 mg/kg) was far above the maximum level specified by EFSA (2013), that is as much as 4,000 mg/kg. The boiling process was quite effective in lowering the level of borax in food, while the frying process did not actually reduce the level of borax in food. Penelitian ini bertujuan untuk menganalisis kandungan boraks pada makanan dan pengaruh pengolahan makanan terhadap kandungan boraks pada makanan. Penelitian ini dilakukan dengan metode survei. Jenis makanan yang dijadikan sampel dalam penelitian ini adalah jenis makanan yang diperoleh dari pasar tradisional dan modern, sekolah dasar, dan supermarket di wilayah Kecamatan Pamulang. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Setiap sampel dianalisis kandungan boraksnya secara kualitatif menggunakan test kit boraks. Selanjutnya, makanan yang telah terdeteksi oleh analisis kualitatif (ada empat kategori data), diambil satu sampel per kategori untuk dianalisis secara kuantitatif menggunakan metode HPLC di Laboratorium Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. Makanan yang terdeteksi mengandung boraks paling tinggi diperlakukan dengan cara direbus dalam beberapa rentang waktu (5 menit, 15 menit, dan 30 menit) dan digoreng sampai matang (tidak sampai gosong). Data yang dikumpulkan dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa 54% dari sampel makanan yang diperoleh dari Sekolah Dasar positif mengandung boraks; sebanyak 74% dari sampel makanan yang diperoleh dari pasar tradisional positif mengandung boraks; sementara semua sampel berasal dari supermarket tidak terdeteksi mengandung boraks. Kandungan boraks dalam makanan yang terdeteksi dalam penelitian ini berkisar antara 560 mg/kg sampai dengan 17.640 mg/kg. Kandungan tertinggi ditemukan dalam mie basah kuning (17.640 mg/kg) jauh di atas kadar maksimum yang ditentukan EFSA (2013) sebanyak 4.000 mg/kg. Proses perebusan cukup efektif dalam menurunkan kadar boraks dalam makanan, sedangkan proses penggorengan tidak mengurangi kadar boraks dalam makanan.
KONSENTRASI TIMBAL (Pb) PADA PERAIRAN DI SEKITAR TELUK JAKARTA Maman Rumanta; Amril Latief; Ucu Rahayu; Anna Ratnaningsih; Gusti Nurdin
Jurnal Matematika Sains dan Teknologi Vol. 9 No. 1 (2008)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.911 KB)

Abstract

he purpose of this study is to get information about river that has the greatest contribution to cause Pb pollution in the Jakarta Bay. Nine (9) of 13 rivers flowing into Jakarta Bay were chosen. They were Citarum, Bekasi, Cilincing, Marunda, Ciliwung, Sunter, Cideng, Angke, and Cisadane. Sampling were taken in two periods of times, rainy and dry season of 2006 with triple repeatations. pH and temperature of samples as proponent data were measured insitu. Pb concentration in the water of the river was measured by using AAS flame in the laboratory of Balai Penelitian Tanah Bogor. Data was analyzed statistically (one way ANOVA and t-test) by using SPSS 11.5 software. It was shown that Pb concentration of estuary water surrounding Jakarta Bay has been exceeding threshold level. There was a tendency that Pb concentrations of water in rainy season are lower than that in dry season except in Ciliwung River. The anomaly of Ciliwung River was probably caused by some industries which throw their wastes into Ciliwung River in the rainy season. It was concluded that all of 9 rivers have a significant contribution to Pb pollution in Jakarta Bay, and the most was from Ciliwung River.
Pengaruh Kadmium terhadap Gangguan Patologik pada Ginjal Tikus Percobaan Anna Ratnaningsih
Jurnal Matematika Sains dan Teknologi Vol. 5 No. 1 (2004)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (74.674 KB)

Abstract

Once of environmental pollution is heavy metal cadmium that causes toxic effect to the human and animal life. This research is to identify the effect of cadmium on kidney function. Cadmium was administered by adding it in drinking water. This study was performed by using four cadmium’s concentrations on drinking water which are 0 mg/L (control); 0.06 mg/L; 6.60 mg/L and 66.00 mg/L. Observation was conducted during 0 week; 2 week; 4 week; 6 week and 8 week. The failure of kidney function is indicated by accumulation of cadmium on the kidney and protein contens in the urin of Wistar rats. The result showed that the exposure of cadmium through drinking water caused pathophysiology effect in rats such as increasing of proteinuria and accumulation of cadmium in kidney. Pathological effect such as cell degeneration of kidney was also observed.
PENGARUH KADMIUM TERHADAP GANGGUAN PATOLOGIK PADA HATI TIKUS PERCOBAAN Anna Ratnaningsih
Jurnal Matematika Sains dan Teknologi Vol. 4 No. 1 (2003)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.44 KB)

Abstract

Cadmium is a toxic heavy metal which causes of environmental pollution and toxic effect to the human and animal life. The specific objectives of the research were 1) to analyze cadmium content of rice and 2) to identify the effect of cadmium on liver function. The failure of liver’s function is indicated by accumulation of cadmium on liver, SGOT value and SGPT value in the serum of Wistar rats. Cadmium was administered by adding it in drinking water. The levels were composed based on highest level of cadmium found in rice. This study was performed by using four cadmium’s concentrations on drinking water which are 0 mg/L (control); 0,06 mg/L; 6,6 mg/L and 66 mg/L. Observation was conducted during 0 week; 2 weeks; 4 weeks; 6 weeks and 8 weeks. The result showed that the exposure of cadmium through drinking water caused pathophysiology effect in rats such as increasing of enzymes SGPT & SGOT and accumulation of cadmium in liver. Pathological effects such as cell degeneration of liver were also observed.
Profil Komunikasi dan Profil Kerjasama Lulusan Program Studi Pendidikan Biologi Universitas Terbuka Dyah Aniza Kismiati; Leonard R. Hutasoit; Anna Ratnaningsih
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 2 (2023): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i2.4453

Abstract

The success of a study program in a university can be seen from the quality of the graduates. If the quality and performance of graduates are good, the study program can be said to be successful. This is also true in remote collegesuch as the Universitas Terbuka. In order to know this, this study was conducted which aimed to determine the performance of graduates of the Biology Education Study Program, especially on the profile of communication ability and the ability to work with graduates. The sample of this study was 35 graduate users. This sample was obtained from a random sampling technique. Data is obtained through questionnaires and interviews conducted with graduates and graduate users. Next, the data are analyzed descriptively. The results showed that the profile of communication ability and cooperation of graduates was considered very good both of from the self-reflection of graduates and from graduate users. This is based on descriptive data analysis where graduates and graduate users strongly agree and agree with all statements in the profile of communication and cooperation skills.
PROFIL ETIKA DAN KOMPETENSI ALUMNI PROGRAM STUDI PENDIDIKAN BIOLOGI Leonard R. Hutasoit; Dyah Aniza Kismiati; Anna Ratnaningsih; Tri Wahyuningsih; Nurhasanah Nurhasanah; Gusti Nurdin
Inteligensi : Jurnal Ilmu Pendidikan Vol 6, No 1 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/ilg.v6i1.4577

Abstract

Research related to alumni in a study program is often carried out to determine the quality of a university. It is no exception in distance universities such as Universitas Terbuka (UT). This study aims to determine how the ethical profile and competency profile in the field of biology education in alumni of the Biology Education study program, Faculty of Teacher Training and Education, Universitas Terbuka. This survey study was conducted using the alumni user population of UT Biology Education students with a research sample of 35 people. There are five indicators to measure the ethical profile of alumni and five indicators related to competency profile. The five ethical indicators include respect, not looking down on others, respecting the opinions of others, behaving politely, and helping others. Alumni competency indicators consist of providing opportunities for students to master the material, carry out learning according to the curriculum, analyze student learning outcomes, play an active role in various activities, and prepare learning materials. The alumni users include the principals and vice principals of the schools where alumni teach. The sample is acquired based on the random sampling techniques. Data was obtained through interviews and questionnaires given to alumni users.  Next, the data is analyzed descriptively. The result, informed us about the average ethical profile of biology education alumni was 89.57 while the average profile of competence or expertise in the field of science was 84.71. Thus, the ethical profile and competence of alumni of Biology Education at the Open University are high
Bioacoustic Analysis for Help Identify Andestimate Distribution of Anura Due to the Effects of Ecotourism in the CA-TWA Region of Telaga Warna tri wahyuningsih; Rusna Ristasa A.; Maman Rumanta; Anna Ratnaningsih
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3798

Abstract

Indonesia is a country with very high biodiversity and is known as Mega Biodiversity. In Indonesia found about 450 species of Anura representing about 11% of all species in the world, and 28 species ofwhich 28 live in West Java.  Anura animals have a pattern of calling behavior that is essential for mating: males produce call-up behavior that attracts females and, in some species, represents the extent of their territory. Research on frogs and toads is considered necessary considering the absence of more detailed data on the bioacoustics of these frogs, especially in the West Java area, so that variations and patterns of anura sounds are known in the Telaga Warna Nature Reserve and Nature Park (CA-TWA) area and can make scientific contributions in information on variations and sound patterns owned by anura animals in terms of anura conservation in Indonesia.  This research was conducted from month March-December 2018, located in Telaga Warna Nature Reserve and Nature Park, Bogor, West Java.  Call the recording every 6:00 p.m. to 11:00 p.m. each night during the sampling period.  The number of anura species in the villa and swamp areas is more abundant than the lake area, and the presence of Pearl maroon frogs (nyctixalus margaritifer) found in the villa and lake areas, while the Bufo melanotictus type that likes to live in the lake area. It can be seen that the villa and swamp areas are still maintained vegetation by looking at the medium density of the canopy. Steeper slope conditions help the flow of nutrients from the soil due to the erosion process and settle in flat to gentle areas. The density of the canopy in the area helps maintain the surface temperature of the land with a stable land surface temperature ranging from 15 – 21 0C.
Co-Authors Amril Latief Gusti Nurdin Gusti Nurdin Kismiati, Dyah Aniza Krisna Iryani Krisna Iryani, Krisna Latief, Amril Leonard R. Hutasoit Leonard Raden Hutasoit Maman Rumanta Nurhasanah Nurhasanah Rusna Ristasa A. Tri Wahyuningsih Ucu Rahayu