Jurnal Sumberdaya Hayati
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Keanekaragaman Musuh Alami Koloni Lepidotrigona terminata Smith (Hymenoptera: Apidae: Meliponinae): Diversity of Natural Enemies in the Colony of Lepidotrigona terminata Smith (Hymenoptera: Apidae: Meliponinae)
Get PDFThe research about types of natural enemies of stinless bees Lepidotrigona terminata had been conducted in West Java. All natural enemis were identified morphologically and their habitat. There were 687 individuals of 14 species of natural enemies obtained in this research, i.e., Pseudeuophrys sp., Heliophanus sp., Argiope versicolor, Plexippus paykuli, Marpissa sp., Parasteatoda tepidariorum, Tegenaria sp., Nasutitermes javanicus, Paratrechina sp., Polyrhachis sp., Paratrechina longicornis, Rhynchium haemorrhoidale, Hemidactylus frenatus and Hemidactylus garnotii. Based on observation, spider, ants, and lizard were the predators of stingless bee. The results are expected as data and knowledge in the conservation and cultivation of stingless bees
Profil DNA Forensik pada Barang Bukti Dua Kasus Pembunuhan di Indonesia
Get PDFDNA technology for profiling purposes has been used in many basic and applied science. One of the emerged applied science in genetics is it’s uses in solving crime cases. Homicide became one of highest crime cases in Indonesia. Solving its cases through DNA profiling technology using items of evidence as tool is needed. Here, we report the profiling of human DNA from several items of evidence available in the crime scene and the suspect. We used items of evidence from study cases no. 18098 and 18101, based on the legal permission of Indonesia’s National Police. We used 21 international standards of human STR markers, one sex-determining marker, one Y STR marker, and one independent Y marker to developed human alleles from tissue and blood stains left and/or shred on the victims, soap bottles, knifes, victim’s clothes and ropes as well as the buccal swab of the crime suspect. Our alleles identification matched between the victim and the crime suspect in both cases with the accuracy of DNA profiles compatibility at 99.99%. Detection of DNA profiling is depending on the evidence and time of storage which are influence by environment that can lead to the process of decayed and/or contaminated
Fungsi Taman Kota Untuk Mitigasi Dampak Urban Heat Island di Kota Bandung: Ecological Function of Forest Park to Mitigate Urban Heat Island in Bandung
Get PDFForest parks can take a role in mitigating negative impact of Urban Heat Island. Therefore, this study was conducted to clarify ecological function of three forest parks i.e Ganesha, Maluku, and Tegalega forest park in mitigating Urban Heat Island. Land classification and surface temperature were determined by analyzing Landsat 8 image with QGIS. Air temperature was measured by mobile station through north-south and east-west of Bandung City area. There are four types of land classification in Bandung as follows: settlements, water body, bare soil, and vegetation. In Bandung City, vegetation cover is around 20.72%; surface temperatures in the afternoon varies from 23 to 39.6°C, while during the night air temperatures varies from 20.5 to 24.9°C. Northern part of Bandung tends to have cooler air temperature due to high coverage of vegetation. Tegalega forest park can reduce temperature up to 2.6°C, while in Maluku forest park is 1.98°C and Ganesha forest park is 0.75°C. Therefore, the existence of forest parks is important in urban area because they can take a part to reduce negative impact of Urban Heat Island.
 
Keragaman Suara Tonggeret dan Jangkrik di Taman Nasional Gunung Gede Pangrango: Sound Variety of Cicada and Cricket at Gunung Gede Pangrango National Park
Get PDFIndonesia is a biodiversity country and has much of samples of bioacoustics but there are no bioacoustics data collected and saved to be referred. Bioacoustics is a study of frequency range, sound amplitudo intensity, sound fluctuation, and sound patterns. It is very useful to study more about population presumption and species determination. This insect bioacoustics research is done at Gunung Gede Pangrango National Park and aims to analyse variety of sound frequency of cicada and cricket. Methods which are used are recording the sounds, editing and analyzing the record result with Praat and Raven Lite 2.0 softwares, and analysing the environment. Analysing the sounds which is done is to find miximum frequency, minimum frequency, and average frequency. The result of the sounds analysis is compared to database in Singing Insect of North America (SINA). Environmental analysing includes temperature, air humidity, and light intensity. There are nine cicada sound recording files and twenty four cricket sound recording files. Cicada has high sound characteristic (9,168.2 Hz) and cricket has low sound characteristic (3,311.80 Hz). Comparation to Singing Insect of North America (SINA) database shows that the cicada’s sound is resemble to Tibicen marginalis and the cricket’s sound is resemble to Grylodes sigillatus.
 
Perilaku Mencit (Mus musculus) terhadap Feses Ular Kobra Jawa (Naja sputatrix): The Behavior of Mice (Mus musculus) towards Feces Stimulant from Javanese Spitting Cobra (Naja sputatrix)
Get PDFThis research aimed to confirm the predator avoidance behavior of mice from snake droppings as a stimulant. Snake droppings are obtained from snakes fed with mice that come from the same strain as the mice being tested for response. Snake droppings were diluted into three different concentrations (25%, 50%, and 75%). The results showed that male individuals tend to avoid the odor stimuli than the female, it’s shown by the higher avoidance duration in males than the females. The results also indicate that innate behavior takes role in the avoidance response since the mice have never been exposed to any presence of predator.
 
Keragaman Pangan dan Status Gizi Pada Anak Balita di Kelurahan Pasirkaliki Kota Cimahi: Dietary Diversity and Nutrional Status of Under Five Children in Pasirkaliki Ditrict, Cimahi
Get PDFDietary diversity refers to an increase in the variety of foods across and within food groups capable of ensuring adequate intake to promote a good nutritional status. The purpose of this study was to determine the relationship of food diversity with the nutritional status of children under five in Kelurahan Pasirkaliki Kota Cimahi. A cross-sectional study with a simple random sampling method was conducted among 79 households having under five age children. Individual food diversity was measured using a dietary diversity score through questionnaire from FANTA Dietary Diversity Score Indicator Guide. Nutritional status of children under five measured by anthropometric measurement with indicator z-score of WHZ, WAZ, and HAZ. The analysis was carried out by Chi square test and fisher\u27s exact. The average age of children under five is 31 months consisting of 43 boys (54.4%) and 36 (45.6%) girls. The prevalence of wasting children was 3.8%, stunting 21.5%, and underweight 10.1%. As many as 56 (70.9%) children consume diverse foods. There is no relationship between food diversity with nutritional status (p>0.05). Consumption of diverse food with appropriate amount of food portions are recommended for children under five years to get optimal nutritional status
Analisis Metabolomik pada Interaksi Padi dan Bakteri: Metabolomics Analysis on the Interaction of Rice and Bacteria
Get PDFMutualistic plant-microbe interaction can increase the availability or absorption of nutrients and affect plant metabolism. Metabolomics is the study of all metabolites contained in living beings at a specific time. This research aims to study the effect of metanotrophic bacteria (BGM 9 isolate) and nitrogen-fixing bacteria (ITJ 7 isolate) on rice plant growth and reveal the information about metabolites produced by rice plant interacting with the bacteria. Three rice plant varieties (Ciherang, Hawara Bunar, and IR64) were grown on liquid media (Yoshida solution) and were inoculated with the bacteria five weeks after planting. Metabolites in the liquid media were detected seven days after inoculation using Liquid Chromatography-Mass Spectrometry and analyzed using MassLynx v4.1. The results showed that the bacterial inoculation had significant effect on rice growth. Chromatograms resulted from LC-MS showed there are 34 unique peaks from Ciherang, 21 unique peaks from Hawara Bunar, and 30 unique peaks from IR64. The unique peaks in each variety were affected by the bacteria inoculation treatments. 
Faktor Pencetus Kejadian Alergi Pernapasan Pada Pasien Dewasa Di RSUPN Dr. Cipto Mangunkusumo: The Triggering Factors of Respiratory Allergiesin Adult Patients at the RSUPN Dr. Cipto Mangunkusumo
Get PDFAllergy is a hypersensitive reaction in human due to human body produced IgE antibody more than regullary do as a response to the presence of allergens. Asthma and rhinitis are respiratory allergies, could be caused by genetics and environmental factors. The objectives of this study was to analyze the trigger factors of asthma and rhinitis patients at the Allergy-Immunology Polyclinic, Internal Medicine Department, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo National Center General Hospital, Jakarta. The skin test using grass mix pollen, cat, dog, cockroach, and dust mites allergens were done to 90 respiratory allergy patients. History of respiratory allergy from their parents, and environmental factors such as pets, cigarette smoke, and emotional state were asked and recorded. The patients mostly women, and most respiratory allergy patients could be detected by skin test using dust mites allergens, however, their reaction did not the same for other allergens. More than 50% patients of respiratory allergy have atopy from their parents, for most of patients, their emotional state and cigarette smoke in house could trigger the symptom of respiratory allergy. 
Diversitas Serangga Penyerbuk dan Pembentukkan Buah Tanaman Kakao (Theobroma cacao L.): Diversity of Pollinator Insects and Fruit Set of Cacao ( Theobroma cacao L.)
Get PDFCocoa (Theobroma cacao L.) is an entomophilous plant which is need insects for pollination. Pollinator insects increase cocoa’s fruit set. The aim of this research were to study diversity of pollinator insects, visiting activity of fly, Forcipomyia (Diptera), and fruit set of cocoa. Observation of pollinator insects was conducted by scan sampling method. Visiting activity of Forcipomyia were observed based on duration visit per flower, number of flowers visited per minute, and duration of activity on flowers. Pollen load on body of Forcipomyia were measured. Pollination effectiveness of insect were measured from the number and size of the cocoa fruit. Result showed that 19 species of insects visitors on cocoa flowers were observed. Nine species are pollinator of cocoa’s plants i.e. Forcipomyia, Cecidomyia, Stilobezzia, Drosophila, Orimarga, Dolichoderus, Pheidole, Megachile, and Nomia. Cocoa pollination by insects produced 3% fruit higher than flowers without insect pollination. Pollination by insects produced size and weight of fruit, and number of seed per fruit were higher than pollination without insects. 
Seleksi Bakteri Asam Laktat dan Pemanfaatannya sebagai Starter pada Fermentasi Biji Sorgum: Selection of Lactic Acid Bacteria and its Application as Starter for Sorghum Grain Fermentation
Get PDFThis research aims is to find starter for sorghum fermentation and to observe its influence in fermentation process and tannin level in sorghum flour. Four isolates of Lactic Acid Bacteria were tested as starter for Numbu and Kawali sorghum grain fermentation. The criteria was the ability to produce acid and cell viability. The fermentation used four treatments in duplicates. The selected isolate was inoculated into dehulled and non-dehulled sorghum grain. The fermentation time were 0, 24, and 48 h. Analysis were pH, total acidity, total sugar, viable cell, tannin level, structure of sorghum flour, the yield of flour passed 80 mesh, and flour moisture. The results showed that E1222 was selected as a starter for Numbu sorghum grain fermentation while E5 was selected for Kawali. The starter can decrease pH value, increasing total acidity, decreasing total sugar, however there was no significant difference in viable cell in fermentation process. It decreased tannin level approximately 90% in Numbu fermented flour and 77% in Kawali. There was corrosion in starch structure of fermented flour, while the yield of flour passing through 80 mesh was increased. The best treatment was fermentation of dehulled and inoculated sorghum grain (So-St) in both of sorghum varieties.