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Distribution of Hot Springs Blawan-Ijen Based on Geoelectrical Resistivity Data Ika Karlina Laila Nur Suciningtyas; Sukir Maryanto; Arif Rachmansyah
Natural B, Journal of Health and Environmental Sciences Vol 2, No 2 (2013)
Publisher : Natural B, Journal of Health and Environmental Sciences

Geothermal energy is a source of heat that occurs naturally in the subsurface. One of the geothermal potential in East Java is in the Blawan that known as geothermal Blawan - Ijen. To find a geothermal potential of an area we have to do some research on subsurface conditions. Research using geoelectric resistivity method has been performed to estimate the distribution of hot springs. The study, conducted in May 2013 showed that there are 21 hot springs manifestations in Blawan - Ijen. Each of these hot springs have a temperature less than 50 °C. Data of geoelectric resistivity divided into 3 parts, resistivity values less than 40 ohm.meter indicated by the color blue , the color green for the resistivity value between 40-1280 ohm.meter and the color orange for values more than 1280 ohm.meter. Geothermal distribution that contained in Blawan is diffused follow existing fracture. Direction of hot springs are heading to the Northeast that following the river flow. The heat carrier layer is permeable layer that have resistivity values less than 40 ohm.meter.

Preliminary Study on the Determination of Volcanic Tremor Epicenter Using Semblance Method (Case Study of Sakurajima Volcano) Ratri Andinisari; Sukir Maryanto; Ahmad Nadhir
Natural B, Journal of Health and Environmental Sciences Vol 2, No 2 (2013)
Publisher : Natural B, Journal of Health and Environmental Sciences

Volcanic tremor is one of the most important volcanic activities due its strong connection to magma movement and impeding eruption. Therefore, the determination of volcanic tremor epicenter becomes very important. The absence of apparent P and S wave arrival of volcanic tremor is the main constraint of its epicenter determination. The use of semblance method is required because semblance method requires no information about P and S wave arrival in epicenter determination. A preliminary application of semblance method has been done to determine the epicenter of 100 s length volcanic tremor of Sakurajima volcano. In this research we use the recorded seismic signal from 5 different volcano observatories, which are KOM, KAB, HIK, ARI, and HAR. The recorded tremor signal is then analyzed by using semblance method. The analysis is carried out by calculated semblance coefficient in every 30 s moving window along the signal. The resulting semblance coefficient varied from 0,25 to 0,42. The epicenter of observed volcanic tremor is located in the north-east part of Minamidake crater by -18,66o to 54,10o of azimuth counted from the east, while the epicentral distance of the observed volcanic tremor varied from 608,28 to 948,68 m from Minamidake crater.

Effects of Turmeric (Curcuma domestica) in Maintaining Reduced Raw Cattle Protein Levels Unggul P Juswono; Johan A E Noor; Avika Dyah Respati
Natural B, Journal of Health and Environmental Sciences Vol 2, No 2 (2013)
Publisher : Natural B, Journal of Health and Environmental Sciences

A biological tissue that exposed by gamma radiation is known to be ionized that cause heavily damage due to the presence of free radicals. One of the damage may occured in the protein molecules which cause decreaseing of protein level of the beef so it needs a research on the effect of turmeric yellow (as antioxidant) in the maintaining of the protein level of the beef. In this research, the sample were meats without added turmeric as a control and the other were meats added with turmeric and then irradiated using radioactive elements Cs-137 and Co-60. Protein levels were tested using the standart method to analyze the levels of soluble protein. The results showed that the addition of turmeric had an influence to keep the protein value of beef. This situation suggests that turmeric is an antioxidant that is very good in counteracting free radicals.

Drought Resistance Variation of Mutant of Kenaf KR11 Based on Prolin Accumulation Rahmi Marsita; Estri Laras Arumingtyas
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

Kenaf is a fiber plants of the family Malvaceae. KR 11 is a high yielding kenaf variety which is resistant to drought stress. Mutations by EMS at several species known to increase resistance to drought stress by accumulation of osmolite. In this research, physiological testing on 5 mutants to determine the effect of the mutation on the drought stress response of kenaf KR 11was conducted. Experiment were done by comparing the physiological accumulation of proline in normal and drought stress conditions. The plants were watered every 3 days for 14 days with 100% of field capacity as normal conditions and 25% field capacity as drought stress. The results showeddifferences inthe pattern ofprolineaccumulationbetweencontrolandmutant in normal and drought stress condition. While control KR11 increased the accumulation on drought condition, mutants showed decreasedprolin content under conditions of stresswith varying decreasing levels. The mostsignificant pattern ofproline accumulationcompared with control, is shownby themutant4and5. Prolin accumulation pattern is controlled by the proline metabolism control genes, P5CS and ProDH and its feedback regulation. Alteration of this pattern is most likely an effect of mutation induction on the mutant sample.

Morphological Variation Interest on Several Varieties of Chrysanthemum morifolium Ramat Hery Purnobasuki; Anika Sindhya Dewi; Dwi Kusuma Wahyuni
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

The aim of this research was to know the morphological variety of flower in Chrysanthemum morifolium Ramat through visual observation which use digital camera and then was analyzed descriptively. Varieties of Chrysanthemum morifolium Ramat in this research were C. morifolium var reagen pink, C. morifolium var puma purple, C. morifolium var evergreen, C. morifolium var boris becker, C. morifolium var stroika, C. morifolium var tiger, C. morifolium var remix purple, C. morifolium var jaguar red, C. morifolium var rhino white, C. morifolium var pasopati, C. morifolium var towntalk. From those 11 varieties showed the morphological differences of the flowers, which are the color of ray floret, the quantity of ray floret, the quantity of ray floret layers, the shape of ray floret, the tip of ray floret, the quantity of disk floret, the position of disk floret, the diameter of flower, the length of ray floret, the width of ray floret, the diameter of involucrum and the disk shape. However, this research also look the similarities between the varieties, which are the edge of ray floret (flat), the color of involucrum is green, the adhering of inter-involucrum (star like), the tip of involucrum (dull), transparent coating involucrum, the quantity of involucrum layers (2 layers), the color of the corolla tubes(yellow), the branched and yellow pistil, and yellow anther. From the results it can be concluded that Chrysanthemum morifolium Ramat has multiple the morphological differences and similarities of the flower morphology between the varieties.

Modeling of Food Insecurity and Poverty with Geographically Weighted Multivariate Linear Model in Kabupaten Sampang Yusrina Nur Dianati; Ni Wayan Surya Wardhani; Rahma Fitriani
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

The problem of food insecurity has long been the focus of attention and is very closely related to the problem of poverty in which the two are interrelated phenomena that have a causal relationship. Food insecurity and poverty is a package that is always the problem faced by the government both central and local government, especially in Sampang. Spatial regression models that have been described in general a univariate spatial model, in which the observations have only one response variable that depends on the location of the observation. Geographically Weighted Multivariat Linier Model a multivariate regression models were used to spatially resolve the influence of spatial heterogeneity caused by differences in the conditions of the location with another location. The purpose of this study was to establish Geographically Weighted Multivariat Linier Model (GWMLM) with a weighted cross – variogram gaussian on the problem of food insecurity and poverty in Sampang. Food insecurity and poverty is a phenomenon of spatial heterogeneity. Based on the 10 sampled villages gained influence the percentage of households without access to electricity (X1), the percentage of main roads are adequate (X2) , the number of health facilities (X3) , and the percentage of malnutrition children (X4) against food insecurity and poverty differently in each location.

Determination of Magnetic Properties of Drugs and Balanced Wastes Based on the Fluorescence Resonance Energy Transfer (FRET) Phenomenon Dina A Chusniyah; Djoko H. Santjojo; Chomsin S. Widodo
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

Along with population growth, the need for clean water is increasing. The availability of clean water is starting to decrease due to the decline in quality and quantity of water in the environment. Water quality degradation can be caused by water pollution from industrial waste disposal. One of the parameters to measure the level of pollution is the biochemical oxygen demand (BOD). Beside titration, biosensor method is a method developed to measure the BOD. The purpose of this study is to design a microorganism-based biosensor that can be used to measure levels of Biochemical Oxygen Demand (BOD5) using a microelectrode transducer with Pseudomonas putida and Pseudomonas fluorescents as bioreceptor on phenol wastes. BOD concentration was controlled by adding phenol in water with concentration of 0 mg/L, 50 mg/L, 100 mg/L, 150 mg/L, 200 mg/L and 250 mg/L. BOD concentration as measured by using titration method and developed biosensor. Experimental result shows that the potential of the biosensor linearly correlated to the concentration of BOD in water. Membrane surface area does not contribute any effect to the output potential of the biosensor. We can conclude that both Pseudomonas putida and Pseudomonas fluorescents can be use as material for measuring BOD concentration in water.

Refugia Block Influence on Insect Pattern Visiting Polinator at Poncokusumo Apples Plantation, Malang Arif Mustakim; Amin Setyo Laksono; Zaenal Kusuma
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

Pollination service in agroecosystems depends on several factors, including the land management systems used by farmers. The using of variety of wild plans as refugia area are expected to be an alternative habitat for pollinators insect in plants: Ageratum conyzoides, Ageratum hostionum, Commelina difussa and Capsicum frutescens This research aims to know the composition of pollinators insect visit of refuge block and analyze their patterns in apple plantation Poncokusumo village Malang. Direct observations of insect pollinators diversity, community structure insect pollinators and abiotic factors in Poncokusumo village. were conducted on August 2012 to December 2013. Sampling was taken in each refuge block in four times observation at 07.00, 09.00, 12.00 a.m. and 3.00 p.m. Analysis of potential insect pollinators of apple blossoms as obtained from the importance and value of diversity index (Shannon-Wiener). Bray Curtis Index was noted diversity index value of insect pollinators was 1,26. The similarity between refuge block was noted with Bray Curtis index of 0,93 %. Community structure of insect pollinators in refuge block dominated from genus Syrphidae (40) and Tabanidae (22). Analysis of environmental factors of temperature, humidity and light intensity on the abundance of insect pollinators showed a negative correlation with the R-square value of 64,7 %.

Determination of Optimum Anti Protein Specific Concentration of 208 kDa Milk Cow on QCM Sensor Nur Chabibah; Setyawan P. Sakti; Masdiana Ch. Padaga; Johan A. E. Noor; Fenny Irawati; Farida Wahyuni
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

The purpose of the research is to detect optimum concentration of immobilization of anti protein cow’s milk with 208 kDa molecular weight’s (anti PSS 208 kDa) by utilizing QCm (Quartz Crystal Microbalance) sensor. The purpose of research is to detect optimum concentration of immobilization of specific anti protein cow’s milk with 208 kDa molecular weight’s (anti PSS 208 kDa) by utilizing QCM (Quartz Crystal Microbalance) sensor. QCM sensor had been coated by polystiren solution of 5% which is heated until 200 ◦C. During measurement, QCM sensor place on data accuisition and QCM-Box measurement. 30 µL Anti PSS 208 kDa with concentration varied between 200 mg/L up to 1400 mg/L was dropped to QCM sensors. Frequency changes were recorded as a function of concentration of anti PSS 208 kDa. The frequency changes due to presence of anti PSS 208 kDa deposited on the surface of QCM sensor were not spontaneous, but takes time to reach steady state. As the concentration of anti PSS 208 kDa increased, so is the frequency change until it reaches saturation point at 1000 mg/L. The mass percentage of anti PSS 208 kDa deposited on QCM sensor surface is decreased with increasing anti PSS 208 kDa concentration. Therefore optimum immobilization concentration of anti PSS 208 kDa is define on frequency changes at first saturation point, that is at 1000 mg/L concentration namely 267 ± 5 Hz

Anatomical Variation on Some Wood Collected from Meru Betiri National Park Serafinah Indriyani
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

Some plants that have wood economically value are found at Meru Betiri National Park, such as nyampuh (Litsea monopetala (Roxb.) Pers.), bayur (Pterospermum javanicum Jungh.), gempol kethek (Lophopetalum javanicum (Zoll.) Turcz.), suren (Toona sureni Merr.), sapen (Pomentia tomentosa T. & B.), manting (Eugenia cymosa Lamk.), pluncing (Spondias pinnata (L.F.) Kurz.), mahoni (Swietenia macrophylla King), and bungur (Lagerstoemia speciosa Pers.). Anatomically, wood has specific and unique structure. Wood is a secondary xylem that consist of tracheary elements such as vessel and tracheid, fibers such as fiber-tracheid and libriform fiber, and parenchyma cells (ray system). The pattern of wood section is affected by intrinsic factors. Wood was sectioned in 2X1 cm² in measurement and then it was boiled during 1 hour, after that it was immersed in mixed solution glycerin and absolute alcohol (1:1) during several weeks until the wood smooth adequately to sliced. Wood was sliced by sliding microtome 20-25 µm in thickness, and then it was placed on the objectglass that contain glycerin and covered by coverglass, after that it was observed by microscope. There was anatomically variation of wood samples that observed, involved trachea and tracheid width, also schlerenchyme fiber length. Vessel of nyampuh is the biggest in diameter (35±4.7 µm), and parenchyma ray of suren is the longest in length (70±9.3 µm) among other species.

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Contact Name
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Journal Mail Official
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Location
Kota malang,

Jawa timur

INDONESIA