Pengaruh Pemberian Nata De Nanno Dan Nannochloropsis Oculata Terhadap Populasi Brachionus Plicatilis [Effect of Giving Nata De Nanno and Nannochloropsis Oculata on Population of Brachionus Plicatilis]

This study aims to determine the effect of Nata De Nanno and Nannochloropsis oculata for Brachionus plicatilis population. The research method used was experimental with a Completely Randomized Design (CRD) with six treatments and four replications. The treatments used were: (A) Nata de Nanno 5x109 cells/L N. oculata, (B) Nata de Nanno 4x109 cells/L N. oculata, (C) Nata de Nanno 3x109 cells/L N. oculata, (D) N. oculata 5x109 cells/L, (E) N. oculata 4x109 cells/L and (F) N. oculata 3x109 cells/L. Analysis of data using variant analysis (ANOVA) and to determine the differences between treatments performed tests Distance Regression Duncan. The results showed that administration of Nata De Nanno and Nannochloropsis oculata for Brachionus plicatilis populations exert a significantly different (p<0,05) in each treatment delivery Nata De Nanno and Nannochloropsis oculata with the highest peak population of young B. plicatilis achieved on the fifth day of treatment D (N. oculata) with a concentration of 5x109 cells/L produce a population young B. plicatilis as much as 98,5 individuals/ml. The lowest peak population of young B. plicatilis on the fifth in treatment C (Nata de Nanno) with a concentration of 3x109 cells/L N. oculata 76,75 produce a population of young B. plicatilis 76,75 individuals/ml. Water quality parameters during the study was the temperature ranges between 27-31°C, a salinity of 31 ppt, pH value 7, DO (Dissolved oxygen) ranged between 5-8 mg/L, and ammonia levels ranged from 0-0.25 mg/L

PENERAPAN LEAN ASSESSMENT TOOLS UNTUK PENGUKURAN PENCAPAIAN USAHA (Studi Kasus di Sentra Industri Perak Yogyakarta)

ABSTRACT Industri Kecil Menengah (IKM) take central and strategic part in national economic development. Craft industry included to potential creative industry category which are developed directly because able to create value added by carrying idea compact with art (Depkop, 2011). At Yogyakarta there are many kind of craft industry, one of them which have high value art is art silver industry. Although function of IKM for people is big enough but there many problems that it have to faced. Before determine appropriate strategy for development, we need to held research that identifying real condition at silver IKM. The research use Lean Assessment Tools and Participatory Action Research hoped can give input for development planning. Lean Assessment Tools is a method that help to investigate, evaluate and measure the condition of manufacturing. Whereas Participatory Action Research more focus on investigate internal and eksternal ability from manager. From theconclution in each method known condition of the industry nowdays. Based on category which are identified than the area that have low achievement are team approach, maintenance, layout/handling, industrial environment, market and marketing, also management information system. By this achievement hoped can give input to arrange strategy for amelioration and development. Keyword :IKM, Lean Assessment Tools, Participatory Action Researc

Prediction of properties for the production and application of graphene reinforced metal matrix composites

This paper presents the development of finite element analysis (FEA) modelling for the prediction of the properties of the metal matrix composites (MMCs) reinforced with graphene. Process parameters taken into consideration were matrix metal (such as Al, Mg Ti, Ni, Cu and Fe) and volume fractions (1%, 5%, 10%, 15%, and 20%) of graphene. The FEA model was developed using ANSYS 14 based on the assumptions that it is free of voids and irregularities, and that the graphene sheets are perfectly aligned. Modelling results were discussed in relation to experimental data from the literature and also verified with theoretical methods; Rule of Mixtures (ROM) and Bettie’s reciprocal theorem. The comparative study of results obtained from the analysis of composite has shown that the properties such as Young's moduli and Poisson's ratio and electrical conductivity of the material are significantly enhanced by the reinforcing graphene in the metal matrix. In particular, it was found that there is a significant increase of longitudinal Young's modulus with increasing volume fraction of graphene reinforcement. Graphene reinforced MMCs has the capability as an advanced composite material of being applied in many highly demanding advanced engineering applications in aero, auto and energy industries. In this paper, the case for application of aluminium-graphene metal matrix composite as the material of choice for power transmission lines is elaborated

Pengaruh Pemberian Minyak Atsiri Daun Bandotan (Ageratum Conyzoides) Dalam Transportasi Tertutup Benih Ikan Koi (Cyprinus Carpio) [the Effects of Bandotan Leave's (Ageratum Conyzoides) Essential Oil Within Closed System Transportation of Koi Carp (Cyprinus Carpio) ]

In the ornamental fish business, transportation has an important role to distributing fish up into the costumers. The distance between the farm and the customers location, require a transportation method which can maintain the quality and quantity of ornamental fish during the transportation. The biggest challenge in live fish closed system transportation is to reduce the stress level of fish during the process. According to Harmon (2009), fish are often exposed to multiple stressor during the transportation. Stressed fish can be seen through the increasing of tachiventilation (rapid opercula movement) and blood glucose levels (Evans and Claiborne, 2006). One of the method to reduce stress of fish during transportation is using essential oils from Bandotan's (A. conyzoides) leaves. A. conyzoides essential oils know has an analgesic activity (Okunade, 2002; Shekhar and Anju, 2012; Singh et al., 2013). A chemical compound with known analgesic effect, used in human and veterinary medicine as local analgesic dan be used to fish for the purpose of sedation, immobilization, and analgesia as well as general anaesthesia (Zahl and Samuelsen, 2012). This research was conducted to see the effect of A.conyzoides essential oils toward the survival rate, blood glucose levels, and tachyventilation of koi carp juveniles during closed system transportation. This research using completely randomized design method which consist of 5 different treatments with 4 replications. Treatment that used in this research is the variation of administration doses of A. conyzoides essential oils during the koi carp juvenile closed system transportation. The treatment such as A (5 ppm), B (10 ppm), C (15 ppm), D (20 ppm), and E (0 ppm). Main parameter of this research is survival rate, blood glucose levels, and tachyventilation of koi carp juvenile during 8 hours transportation. The result shows that A. conyzoides essential oils give a significant result toward survival rate, blood glucose levels, and tachiventilation of koi carp juvenile during transportation. There is no mortality in treatment A, B, and E, during transportation. The lowest blood glucose levels and tachiventilation found in treatment A (5 ppm)

Comparative study of analgesic effect of Moringa oleifera leaf extracts with aspirin on experimental animals

Background: Moringa oleifera is highly valued with a wide range of medicinal uses. It is abundantly available in tropical and sub-tropical countries. It has been used as an analgesic and anti-inflammatory in Indian folk medicine since centuries. The mechanism of action of analgesic effect is by the phytochemical components of its leaves which contain alkaloids, glycosides, phenols, saponins and tannin.Methods: This experiment is carried out in mice by using the thermal method of analgesiometer, that is Eddy’s Hot Plate method. Thermostatically controlled electrically heated plate is used in this method. Ethanolic and aqueous extracts of Moringa oleifera leaf extracts are compared with aspirin.Results: When the analgesic properties of the standard drug aspirin were compared to the analgesic properties of ethanolic and aqueous extracts of Moringa oleifera, the ethanolic extract showed a comparable analgesic effect with aspirin at 90min. Among these two extracts, the ethanolic extract showed a higher response than aqueous extract.Conclusions: When the analgesic properties of the standard drug aspirin were compared to the analgesic properties of ethanolic and aqueous extracts of Moringa oleifera, the ethanolic extract showed a comparable analgesic effect with aspirin at 90min. Among these two extracts, the ethanolic extract showed a higher response than aqueous extract

Effect of series resistance and interface state density on electrical characteristics of Au/SiO2/n-GaN Schottky diodes

metal-insulator-semiconductor (MIS) Schottky diodes and compared with (Au/n-GaN)metal-semiconductor (MS) Schottky diode. The effect of SiO2 on the surface preparation of n-GaN (MIS) Schottky diode is analyzed. The extracted Schottky barrier height and ideality factor of the MS Schottky diode is found to be 0.79 eV and 1.45 respectively. It is observed that the Schottky barrier height increases to 0.86 eV and ideality factor decreases to 1.3 for MIS diode. The interface state density as determined by Terman’s method is found to be 3.79 × 1012 and 3.41 × 1010 cm - 2 eV - 1 for the MS and MIS Schottky diodes, respectively. In addition, the values of series resistance (Rs) are determined using Cheung’s method. The I - V characteristics confirmed that the distribution of Nss, Rs and interfacial layer are important parameters that influence the electrical characteristics of MIS Schottky diodes. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2222

Efektivitas Probiotik Lactobacillus plantarum 2C12 dan Lactobacillus acidophilus 2B4 Sebagai Pencegah Diare pada Tikus Percobaan

The aim of this study was to evaluate the effectiveness of probiotics Lactobacillus plantarum 2C12 and Lactobacillus acidophilus 2B4 to prevent diarrhea caused by enteropathogenic Escherichia coli (EPEC). Albino rats (Rattus norvegicus) were daily orally administered by 108 cfu/ml of both probiotics without or simultaneously infected with EPEC (106 cfu/ml) for 7 days. Negative control was not infected by probiotic and EPEC while positive control was challenged with EPEC alone. After 1, 2 and 3 weeks, total of lactic acid bacteria (LAB) and E. coli of mucosa of cecum and cecum content were evaluated.  It was observed that rats administered by L. plantarum 2C12 and L. acidophilus 2B4 and challenged with EPEC had better performances when compared with the positive control for daily weight gain, feed consumption, feed efficiency rate. Diarrhea was determined by total of E. coli on cecum and watery fecal. Both probiotics could increase 1 log10 cfu/cm2 of total LAB on mucosa of cecum and also 1 log10 cfu/g of cecum content. Both probiotics also could reduce 1-3 log10 cfu/cm2 population of E.coli on mucosa of cecum and 1 log10 cfu/g of cecum content. L. plantarum 2C12 and L. acidophilus 2B4 were effective as probiotics against EPEC on rats

PENINGKATAN KADAR LOVASTATIN ANGKAK OLEH Monascuspurpureus KO-KULTUR DENGAN Endomycopsis burtontt

Lovastatin is a bioactive material of statin groups and has been used to reduce cholesterol through inhibiting HMG Co-A reductase enzyme activities. Three indigenous strains of Monascus purpureus and three mutans were used in this study produced lovastatin at the range of 0,1 - 1,42%. The objectives of this study were to increase lovastatin productions by co-cultured with several concentrations of Endomycopsis burtonii. M. purpureus (10 cfu/ml) was co-cultured with various concentrations of E. burtonii (10M0 ) cfu/ral at three different feeding times (day 2, 4, and 6). Feeding times and concentrations of E. burtonii significantly increased production of lovastatin by four strains of M. purpureus (JMBA5K, AID, JMBA and TOS). The highest production of lovastatin was achieved by M. purpureus TOS co-cultured by E. burtonii at 10 cfu/ml added at day 6. Expression of the genes that responsible for lovastatin production were analyzed by PCR and RT-PCR method. The phenotypic character of M. purpureus TOS with high lovastatin production was conformed by the high intensity of its gene expression