bluuebunny/crossref_metadata_2025 huggingface dataset:
Pilot randomized controlled trial of a complex intervention for diabetes self-management supported by volunteers, technology, and interprofessional primary health care teams
Authors: Agarwal Gina , Gaber Jessica , Richardson Julie , Mangin Dee , Ploeg Jenny , Valaitis Ruta , Reid Graham J. , Lamarche Larkin , Parascandalo Fiona , Javadi Dena , O’Reilly Daria , Dolovich Lisa
Published: October 2019

Background

Most health care for people with diabetes occurs in family practice, yet balancing the time and resources to help these patients can be difficult. An intervention empowering patients, leveraging community resources, and assisting self-management could benefit patients and providers. Thus, the feasibility and potential for effectiveness of “Health Teams Advancing Patient Experience, Strengthening Quality through Health Connectors for Diabetes Management” (Health TAPESTRY-HC-DM) as an approach supporting diabetes self-management was explored to inform development of a future large-scale trial.

Methods

Four-month pilot randomized controlled trial (RCT), sequential explanatory qualitative component. Participants—patients of an interprofessional primary care team—were over age 18 years, diagnosed with diabetes and hypertension, and had Internet access and one of the following: uncontrolled HbA1c, recent diabetes diagnosis, end-stage/secondary organ damage, or provider referral. The Health TAPESTRY-HC-DM intervention focused on patient health goals/needs, integrating community volunteers, eHealth technologies, interprofessional primary care teams, and system navigation. Pilot outcomes included process measures (recruitment, retention, program participation), perceived program feasibility, benefits and areas for improvement, and risks or safety issues. The primary trial outcome was self-efficacy for managing diabetes. There were a number of secondary trial outcomes.

Results

Of 425 eligible patients invited, 50 signed consent (11.8%) and 35 completed the program (15 intervention, 20 control). Volunteers (n = 20) met 28 clients in 234 client encounters (home visits, phone calls, electronic messages); 27 reports were sent to the interprofessional team. At 4 months, controlling for baseline, most outcomes were better in the intervention compared to control group; physical activity notably better. The most common goal domains set were physical activity, diet/nutrition, and social connection. Clients felt the biggest impact was motivation toward goal achievement. They struggled with some of the technologies. Several participants perceived that the program was not a good fit, mostly those that felt they were already well-managing their diabetes.

Conclusions

Health TAPESTRY-HC-DM was feasible; a large-scale randomized controlled trial seems possible. However, further attention needs to be paid to improving recruitment and retention. The intervention was well received, though was a better fit for some participants than others.

Trial registration

ClinicalTrials.gov, NCT02715791. Registered 22 March 2016—retrospectively registered.
Preface
Authors: Karm Mari , Poom-Valickis Katrin
Published: October 2019

Eesti Haridusteaduste Ajakirja erinumbris tutvustatakse võimalusi rakendada tegevusuuringut eesmärgiga arendada õpetamist. Kuna hariduse kvaliteet sõltub õpetamise kvaliteedist, võimaldab tegevusuuring süstemaatiliselt analüüsida enda õpetamistavasid. Analüüsi tulemusena saab õpetamises teha muudatusi ja seeläbi eesmärgipäraselt toetada õppijate õppimist. Erinumbri artiklites tutvustatavad tegevusuuringud on tehtud eri õpikeskkondades (kool, kutsekool, ülikool), otsides lahendusi eritahulistele probleemidele. Raamatututvustus on aga pühendatud John Hattie ja Gregory Yatesi raamatule "Nähtav õppimine ja teadus sellest, kuidas me õpime".
More efficient engineering education through supporting implicit ability beliefs
Authors: Petjärv Britt , Aus Kati , Arro Grete
Published: October 2019

Tööturustatistika kohaselt on inseneride nappus Eestis suur probleem. Uurides kõrgkoolist väljalangemust, selgub paraku, et just tehnilist kõrgharidust omandavate üliõpilaste seas on väljalangemus kõige suurem. Uuringud näitavad, et vaimse võimekusega seotud juurdekasvuuskumuste toetamine parandab õppijate edasijõudmist matemaatikas ning et tehnikavaldkonna üliõpilaste implitsiitsed võimekususkumused mõjutavad kõrgkooliõpingutes edasijõudmist, sealhulgas väljalangemist. Siinses artiklis võetakse vaatluse alla Tallinna Tehnikakõrgkooli esimese õppeaasta üliõpilaste (N = 270) uskumused võimekuse muudetavuse kohta ning muud motivatsiooni ja õpipädevusega seotud tegurid. Uuringu eesmärk on hinnata, millised õppimisega seotud aspektid ennustavad edasijõudmist inseneriõppes. Samuti uuritakse, kas lühiajalise sekkumisega on võimalik muuta õppijate mõtteviisi juurdekasvuuskumuste suunas. Eksperimentaalsest sekkumisuuringust ühe õppekava alusel õppivate esmakursuslaste seas (N = 37) ilmneb, et sekkumisrühma üliõpilaste mõtteviisi muutus oli positiivne ehk jäävususkumused võimekuse muudetavuse kohta muutusid nõrgemaks. See osutab vajadusele toetada õppimisprotsessi puudutavaid arusaamu süsteemselt, õpetamismetoodikasse integreerituna ning kavandada õppejõudude õpetamis- ja õppimisalaste teadmiste arendamiseks asjakohaseid koolitusi.
 Summary
Developing students’ academic literacies via Wikipedia-based tasks
Authors: Reinsalu Riina , Zupping Sirli , Voolaid Ene
Published: October 2019

Üliõpilaste akadeemilise kirjaoskuse arendamine on üks ülikooliõpingutele seatud eesmärke, kuid selle täitmist võivad takistada mitmesugused tegurid, sh üli õpilaste vähene huvi kirjutamisülesande vastu. Üks võimalus suurendada üliõpilaste huvi on asendada traditsiooniline referaat või essee veebis vabalt kättesaadava vikiartikliga. Siinses uurimuses on seatud eesmärgiks välja selgitada vikiülesande võimalused toetada üliõpilaste akadeemilise kirjaoskuse arengut. Tartu Ülikooli väljendusõpetuse kursuste õppejõudude, õppeassistentide ja üliõpilastega tehtud fookusrühma intervjuudest ilmneb, et vikiartikli ülesande kaudu saab peale kirjutamisoskuse muu hulgas arendada üliõpilaste digi- ja infopädevust, uurimis- ja analüüsioskust. Ühtlasi on Vikipeediasse kui avalikku veebientsüklopeediasse kirjutamine tugev motivaator, mis sunnib üliõpilasi pingutama, kuid see võib osa üliõpilaste jaoks olla ka stressiallikas, sest nad tunnevad suurt vastutust loodud artikli eest.
 Summary
Integration of the theory of vocational didactics with school practice: observations of vocational teacher students
Authors: Liivik Reeli , Rekkor Sirje , Sirk Meidi
Published: October 2019

Kutseõppedidaktikas keskendutakse kutseõppe ja töömaailma sidususest lähtudes väljundipõhise õppe planeerimisele, rakendamisele ja hindamisele ning kutseõppedidaktikal on oluline koht kutseõpetajakoolituses ja igapäevatöös. Uurimustest ilmneb, et õpetajad ei mõtesta sageli kutseõppedidaktikat teoreetilise kontseptsioonina ning väljundipõhise kutseõppe põhimõtted ei ole kutsehariduses täielikult juurdunud. Artikli eesmärk on selgitada kutseõpetajakoolituse üliõpilaste oskust seostada omandatud kutseõppedidaktika teoreetilisi teadmisi koolitegelikkusega. Rakendatav kvalitatiivne temaatiline analüüs põhineb 12 üliõpilase praktika vaatlusülesandes esile toodud tähelepanekutel ja seostel kutseõppedidaktika teooriaga. Uurimistulemused näitavad, et üliõpilaste tähelepanekud kirjeldavad lihtsustatult kutseõppedidaktika teooria ilmnemist koolitegelikkuses ja vaatluste tõlgendused seostuvad tugevamalt vaatlusperioodil omandatud teoreetiliste teadmistega kutseõppedidaktika kohta.
 Summary
Lecturer’s and assistant’s views on collaborative teaching at the university
Authors: Lõhmus Eleri , Narits Henry , Ugur Kadri
Published: October 2019

Märksõna koostöö on kõrghariduse võlu- ja võtmesõna, mis aitab toime tulla piiratud ressursside ning kasvava konkurentsiga. Ühise õpetamise vorme on kõrgkoolides kasutusel palju, alates loengute jagamisest eri õppejõudude vahel kuni õpetamiseni võrdselt vastutavate ja panustavate partneritena dialoogi pidades. Artiklis kirjeldatakse ja analüüsitakse Eleri Lõhmuse ja Henry Naritsa koosõpetamise kogemust audiovisuaalse produktsiooni praktilisel kursusel Tartu Ülikooli ühiskonnateaduste instituudis 2018. aasta sügissemestril. Artikkel põhineb autoetnograafiliselt dokumenteeritud materjalil, mida Lõhmus ja Narits kogusid ühistöö käigus. Artikli kolmas autor tegi intervjuud üliõpilastega, et lisada autoetnograafilistele tähelepanekutele õppija vaatepunkt. Kogutud empiirilise materjali analüüs osutab, et koosõpetamine kõrgkoolis on efektiivne ja arendav kõigile osalistele, aga õppetöö õnnestumine sõltub planeerimis- ja refleksioonioskustest ning vajab praegusest rohkem formaalset tuge.
 Summary
BAKTERI ENTOMOPATOGEN SEBAGAI AGEN BIOKONTROL TERHADAP LARVA Spodoptera litura (F.)
Authors: Zulfiana Deni , Krishanti Ni Putu Ratna Ayu , Wikantyoso Bramantyo , Zulfitri Apriwi
Published: October 2019

Spodoptera litura (F.) (Lepidoptera: Noctuidae) is one of the agricultural pests that attacking almost all kinds of herbaceous plants, especiallyvegetables. Insect control using entomopathogenic bacteria is an alternative strategy that is effective and has a lower environmental impact than the use of synthetic insecticides. The purpose of this research was to explore entomopathogenic bacteria that have insecticidal activity against S. litura larvae at various stages of instars. The result showed that 25% of total number of isolated bacteria have potency as entomopathogenic bacteria. Isolate Staphylococcus sciuri strain BLSP-3 and isolate Serratia sp. strain BLSP-4 showed the highest larvicidal activity against the first and second instar larvae of S. litura 83% and 86%, respectively. The activity against on the third instar larvae however was only by 40%. However, the mortality caused by both isolates was lower than that of Bacillus thuringiensis (more than 90% mortality to the first and second instars and 80 % of the third instar larvae). It is suggested that both of isolates are potential to be developed further as a biocontrol agent to control S. litura population.
PENINGKATAN PERTUMBUHAN PADI VAR CIHERANG SETELAH DIINOKULASI DENGAN Azospirillum MUTAN MULTIFUNGSI PENAMBAT N2, PELARUT P DAN PENGHASIL FITOHORMON INDOLE ACETIC ACID (IAA).
Authors: Riyanti Eny Ida , Listanto Edy
Published: October 2019

Modern agriculture rellies on the application of fertilizer to enhanched plant growth. Excessive application of chemical fertilizers in the long term will decrease soil fertility, therefore the use of biological fertilizers is expected to reduce the negative impact. The aim of this study was to determine the effect of multi-functional Azospirillum for N2-fixation, phosphate solubilizerÂ  and producing phytohormone Indole Acetic Acid (IAA) on the growth of rice plants Ciherang in the pot experiment conducted in the BB Biogenâ€™s greenhouse. Two treatments were tested: types of inoculation (not inoculated, were inoculated with the wildtype AjB 6.4.1.2 and inoculated with mutant isolates AJM 3.7.1.14), and 4 levels of fertilizer application (not fertilized, a quarter dose of paddy fertilizer recommendations, a half dose of fertilizer rice in the rice fields, and the appropriate dose of fertilizer in paddy fields). Azospirillum used is wildtype isolate AjB 6.4.1.2 and mutant isolate AJM 3.7.1.14 isolated and and mutated in BB Biogen. Ciherang rice seed inoculated with Azospirillum on the cell density of 106 cells / ml at the different seedlings tub. After the age of 14 days after planting, the seedlings were transferred into pots with three plants per pot. Parameters measured were: plant height, number of tillers, number of panicles per clump, fresh weight and dry panicles per clump, weight of 100 grains, and the content of N and P stover. Results show that inoculantion, affect significantly on the number of panicles per hill, grain weight per panicle and the dry weight of grains per panicle.
KARAKTERISASI PISANG REJANG TETRAPLOID HASIL INDUKSI DENGAN ORYZALIN
Authors: Poerba Yuyu Suryasari , Handayani T , Witjaksono Witjaksono
Published: October 2019

Triploid banana cultivar is the most desirable cultivar in banana industry because of its higher yield compared to its diploid cultivar.  The  triploid cultivar can be produced by crossing tetraploid with diploid cultivar.  However, tetraploid banana cultivar is rarely existed naturally.  Induced tetraploid of Pisang Rejang was produced using oryzalin. The present research was conducted to characterize tetraploid Pisang Rejang (Musa acuminata, AAAA genome) induced by in-vitro oryzalin treatment from diploid Pisang Rejang. Ploidy level, molecular and morphotaxonomic characters were observed.  Ploidy identification of induced Pisang Rejang was conducted using Flowcytometer.  Molecular characterization was done using RAPD and ISSR markers. Morphology characters were observed based on UPOV (2010). The results showed that tetraploid plants have similar genetic properties with their diploid controls as shown by genetic identity of 0.9901 – 0.9935. The tetraploids were differed from their diploid plants in plan habit and diameter of fruit.  The tetraploid plants produce fewer suckers, drooping leaves and broader fruits compared to its diploid control.
KEANEKARAGAMAN KEONG DI PULAU ENGGANO, BENGKULU UTARA
Authors: Heryanto Heryanto
Published: October 2019

Research on the diversity of snails in Enggano, Central Bengkulu was held on 16 April 2015 to 5 May 2015 by taking three sampling sites that are north-western part of Enggano (Kampung Bendung at Desa Banjarsari and Desa Meok), the centralpart of Enggano (Desa  Malakoni) and the south-easternpart of Enggano (Desa Kaana). Sampling was conducted using purposive sampling while the analysis using graphical method and statistical cluster and t-test. This study found 722 specimens of snails which consists of 24 species from 17 families. Most of the snails found are in small size. Land snails in the forest dominates the north-easternpart as much as 88.2%. compared to  freshwater snails (11.8%). Terrestrial and freshwater snails share amount 50% each in the forest of the central, while terrestrial snails still dominate in the forest of south-eastern part (land snails: snail freshwater = 71.4%: 28.6% ). The existence of land snails and freshwater can not be separated from the state forests themselves besides the condition of the soil and surface water as a result of the topography of the island
KUALITAS SEMEN BEKU DOMBA GARUT (Ovis aries) PENAMBAHAN SUKROSA DALAM PENGENCER SEMEN KUNING
Authors: Suharman Herdis
Published: October 2019

The objective of this research was to examine the effect of sucrose in improving the quality of the plasma membrane intact and sperm motility of frozen semen of Garut ram. Semen was collected using artificial vagina weekly from six mature garut rams.   Immediately after initial evaluation, fresh semen was divided into four parts and diluted with Tr s extender without sucrose (T0), Tris extender + sucrose 0.2g/100 ml (T1), Tris extender + sucrose 0.4g/100 ml (T2) and Tris extender + sucrose 0.6g/100 ml (T3), respectively.  Results of this research showed that the percentage of sperm motility after thawing in T2 (49.00 ± 5.48%)  was significantly (P<0.05) higher than T0 (42.00 ± 2.74%) but was not significantly difference (P>0.05) than T1 (46.00 ± 4.18%)and T3 (48.00 ± 4.47%).   Evaluation of plasma membrane intact showed that T1 (62.33 ± 6.51%) was s gnificantly different (P <0.05) w h T0 (49.40 ± 2.19%) but was not significantly different (P> 0.05) than T2 (58.50 ± 4.97%) and T3 (56.40 ± 5.90%).  In conclusion, he addition of sucrose in semen extender  improved the quality of frozen semen of Garut ram.  Concentration of 0.2g / 100 ml is the op ma dose to improve the quality of the plasma membrane intact and motility of spermatozoa during the freezing process.
FAUNA IKAN AIR TAWAR DI PERAIRAN KAWASAN GUNUNG SAWAL, JAWA BARAT, INDONESIA
Authors: Haryono Haryono
Published: October 2019

This study aimed to assess fish diversity and its related aspects in the Sawal Mountain Region, the watershed Citanduy in Ciamis, West Java, Indonesia. The study was conducted by grouping into four zones based on forest condition and the order of the river. The fisheswere sampled by using elektrofishing. This study recorded 12 species which Barbodes binotatus is the most abundant and widely local distributed, i.e. 20.09 individu/station and occupied 78.60 % of the area. Based on species status, as much as 75% species have wide geography distribution (common species) and the rest was introduced species. As much as 50% (6 species) have the potency as consumption fish, 25% (3 species) as ornamental fish, 17% (2 species) both as ornamental and consumption, and 8% (1 species) is stil unknown for the benefit.
C0-CULTURE OF AMYLOLYTIC FUNGI Aspergillus niger AND OLEAGINOUS YEAST Candida orthopsilosis ON CASSAVA WASTE FOR LIPID ACCUMULATION
Authors: Kanti Atit , Sudiana I Made
Published: October 2019

The objective of study was to evaluate the effectiveness of co-culture between amylolytic fungi  Aspergillus niger and lipid accumulating yeast Candida orthopsilosis for lipid accumulation on cassava waste. When grown in 5 % starch medium, all microbes was able to grow, but best growth was observed on Aspergillus niger, other microbes grew slower. Moderate growth was observed  on Saccharomycopsis fibuliger.  The two isolates were then selected for further studies. Aspergillus niger and Saccharomycopsis fibuliger were amylolytic microbes. The amylolytic activities were affected by temperature, pH and nitrogen sources.  Optimum temperature and pH for enzyme production were 30°C and 7.0 respectively. Both yeast extract and sodium nitrate were good nitrogen sources for amylase production. On cassava waste, the highest biomass and total lipid content were obtained by co-culture of Aspergillus niger and lipid accumulating yeast Candida orthopsilosis. Major lipid composition was oleic acids and strearic acids. The ability of co-culture of Aspergillus niger and lipid accumulating yeast Candida orthopsilosis grew and accumulated lipid on cassava waste would suggest that these culture were candidate for biofuel production.
PERBANYAKAN VEGETATIF BIDARA UPAS (Merremia mammosa (Lour.) Hallier f) KEBUN RAYA BOGOR
Authors: Cahyaningsih Ria , Hidayat Syamsul , Hidayat Endang
Published: October 2019

Bidara upas (Merremia mammosa (Lour.) Hall.f.) is a medicinal plant, , that traditionaly use by Indonesian and Malaysian people. Regarding Indonesia Biodiversity Strategy and Action Plan released by The National Development Planning Agency, it is included in the extinct medicinal plant list (2003). As the center for plant conservation, Bogor botanical garden conducted vegetative propagation study on this plant by air layering, cutting, and tuber cutting. The aim to this study is to find effective for bidara upas which method is vegetative propagation. Air layering and cutting propagation modified by Rootone-F did not give any result, whereas tuber cutting propagation with GA3 gave positive result. Principally, propagation by tuber cutting modified by 50 ppm of GA3 dose gave the most rapid and highest uniformity on shoot emergence, the best on growing variables, namely average height of shoot growing, the number of secondary roots, the number and length of the primary roots. It cannot be concluded yet that propagation by tuber cutting modified by GA3 was the most effective. Hence, it is necessary to conduct another propagation studies of air layering and cuttings with more variants of treatments, especially Rootone-F dose.
LUMUT SEJATI DI HUTAN ALAM PAMEUNGPEUK, TAMAN NASIONAL GUNUNG HALIMUN SALAK, JAWA BARAT
Authors: Windadri Florentina Indah
Published: October 2019

Halimun Salak National Park is one of the remaining conservation areas left in West Java. Research on diversity of Bryophytes had previously been conducted at  Halimun Mount, Kendeng Mount and  the lowland forest surrounding Cikaniki-Citalahab, while this present  study was aimed to  record the diversity of mosses at Pameungpeuk primary forest. There were 78 species  of mosses including in 47 genera and 20 families. Syrrhopodon spiculosus Hook. & Grev. was a dominant species in the research area. Twenty seven species were new record for Halimun Salak National Park, one of which (Rhizogonium lamii Reimers) was a new record for Java and seven species were new record for Indonesia.
PATOGENISITAS ISOLAT BAKTERI Xanthomonas oryzae pv. oryzae DAN PEMANTAUAN PENYAKIT HAWAR DAUN BAKTERI PADA PADI GALUR ISOGENIK
Authors: Suryadi Yadi , Kadir Triny Suryani
Published: October 2019

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is an important rice disease due to its high intensity that and  the mereased durability of its resistant variety. This study was aimed  to determine the pathogenicity of Xoo isolates, which obtained from four regions/districts in West Java on three rice near isogenic lines (NILs) containing a single resistance (R) gene; and  to study reaction of rice NILs/ differential genotypes containing mixture of resistant genes to Xoo population under endemic areas. Out of 22 Xoo isolates have been collected and further determined by ELISA assay. Ten Xoo isolates were selected and inoculated to identify their pathogenicity on three NILs i.e., IRBB5 (xa5), IRBB7 (Xa7) and IRBB21 (Xa21). Pathogenicity test showed that most of isolates produced large lesion, and four virulence groups were identified. Phylogenetic analysis suggested that the dominant virulent isolates were widely distributed at several district in West Java. It was shown that 11 NILs exhibited high levels of resistant reaction to the predominant Xoo pathotypes in Cianjur, while 10 lines were susceptible. The single R gene (IRBB7, IRBB21 and Java14) exhibited lower BLB severity. The IRBB50, IRBB51, IRBB52, IRBB53 lines (carrying two R genes), IRBB56, IRBB57 (carrying three R genes); IRBB64 (carrying four R genes), and IRBB66 (carrying five R genes) showed lower severity and thus produced higher resistance to Xoo. This study may implied further work to deploy effective R genes against certain Xoo pathotypes in differ  region.
KEANEKARAGAMAN JENIS POHON DI KAWASAN CAGAR ALAM DUNGUS IWUL, JASINGA, BOGOR
Authors: Polosakan Ruddy , Alhamd Laode
Published: October 2019

Dungus Iwul Nature Reserve is one of the remaining conservation areas in Java and has an unique vegetation. Study on tree biodiversity was carried out in one hectare permanent plot. The results showed that there were 78 species of 35 families and 63 genera with 1219 trees per hectare. The species of Orania sylvicola was very dominating the region, with high distribution (Frequency = 100%) and the total basal area (basal area relative; BA = 50.96%). Species of O. sylvicola (Important Value; IV = 129.48%) highly covered the area, followed by Mischocarpus sundaicus (IV = 19.93%), Diospyros frutescens (IV = 9.67%), Ficus variegata (IV = 9.38%) and Knema laurina (IV = 8.51%). Family with largest number of species was Euphorbiaceae (11 species), followed by Lauraceae (7 species) and 4 species of Fabaceae, Meliaceae and Rubiaceae.
Pellacalyx Symphiodiscus STAFP FROM LONG BAGUN, MAHAKAM HULU: MORPHOLOGICAL CHARACTERIZATION AND ITS DISTRIBUTION
Authors: Astuti Inggit Puji , Susandarini Ratna , Sari Rismita
Published: October 2019

Pellacalyx is one of the genera in Rhizophoraceae, distributed from Myanmar, South China, Indonesia, Malaysia and the Philippines. In Indonesia, Pellacalyx can be found in the island of Sumatra, Kalimantan and Sulawesi. Eight species of Pellacalyx have been found  in Indonesia, four of which them were from Kalimantan, i.e. P. axillaris, P. cristatus, P. lobbii and P. symphiodiscus. These four species generally grow in the primary and secondary forest, from lowland to an altitude of 1300 m above sea level. Information of Pellacalyx in Indonesia is still very limited , and rarely found in the wild. The last information of Pellacalyx found in West Sumatra was reported by an expedition team of the Center for Plant Conservation Bogor Botanical Garden in 2006.  The Expert Team of the Khatulistiwa Expedition in Long Bagun, West Kutai, East Kalimantan on May 26–June 2, 2012 found a species of Pellacalyx. Morphological characterization was then conducted based on the herbarium specimen for identification. The identification was carried out in Bogor Botanic Gardens, Center for Biological Research, Indonesian Institute of Sciences and The National Herbarium Leiden, Netherland. The results show that Pellacalyx specimen from Long Bagun is Pellacalyx symphiodiscus.
HERITABILITAS DAN PEROLEHAN GENETIK PADA BOBOT IKAN NILA HASIL SELEKSI
Authors: Nugroho Estu , Mayadi Lalu , Budileksono Sigit
Published: October 2019

Directional-individual selection on tilapia growth had been conducted in West Nusa Tenggara Province. The base population had been constructed through di allele crossing between six tilapia strains i.e. NIRWANA, BEST, SULTANA, Citralada, JATIMBULAN and White Sleman. A total of 150 brood stock pairs were used for spawning with the ratio of female and male parent 1: 1 in net with size of 1x1x1 m. Two hundred larvae  produced from each spawn pairs were communally reared in a pond for three months. Directional-individual selection was conducted at the size of > 50 grams. The cut-off for minimum selected fish was based on the lowest individual weight of 10% top population. The average value of heritability on body weight was 0.251 for males and 0.258 for the female population. The total value of genetic gain of body weight for four generations was 51.68% for male population and 56.78% for the female population.
STUDI BIOMETRI BERDASARKAN MERISTIK DAN MORFOMETRIK IKAN GURAMI GALUR BASTAR DAN BLUESAFIR
Authors: Radona Deni , Nafiqoh Nunak , Arifin Otong Zenal , Arifin Otong Zenal
Published: October 2019

Identification of Gouramy is required to obtain phenotype characteristics information of the population for sustainable aquaculture  practices. In this study phenotype diversity of giant gouramy strain bastar and bluesafir was analyzed based on  meristic and morphometric measurement. Sample, are taken from 30 individuals of each population. The result showed that there were differences in colour patterns between the two populations, bastar population had yellowish brown body and red fins, whilst bluesafir population had brown blackish brown body and fins. The canonical function of truss morphometric analysis on 21 characteristics showed the measurement distribution of that both populations were in different quadrants. The intrapopulation similarity index showed that population of strain bluesafir had higher genetic similarity (80%) with interpopulation similarity index of 23.3%, while the intrapopulation similarity index of strain bastar was 76.7%.
VARIASI GENETIK Lactobacillus fermentum Beijerink ASAL SAYUR ASIN BERDASARKAN ANALISIS RFLP 16S-23S rDNA ISR, RAPD-PCR DAN ERIC-PCR
Authors: Sulistiani Sulistiani , Mangunwardoyo Wibowo , Abinawanto Abinawanto , Sukara Endang , Dinoto Achmad , Salamah Andi
Published: October 2019

Molecular analysis of Lactobacillus fermentum isolates is essential to understand their genetic variation in relations to their roles in sayur asin fermentation process. Combination of three molecular techniques which is restriction fragment length polymorphism (RFLP) of 16S23S rDNA intergenic spacer region (ISR), random amplified polymorphic DNA (RAPD-PCR) and an enterobacterial repetitive intergenic consensus (ERIC-PCR) analysis were performed to discriminate 19 representative isolates of L. fermentum isolated from sayur asin. The result showed that L. fermentum strain D11 is distantly related to other isolates based on RFLP using HhaI restriction enzyme and RAPDPCR analyses. In addition, both of RAPD-PCR and ERIC-PCR successfully determined the genetic variation among L. fermentum strains by exhibiting distinct 4-8 bands (800-2080 bp) and 4-10 bands (280-3050 bp), respectively. A dendogram generated from UPGMA cluster analysis of both RAPD-PCR and ERIC-PCR data showed two distinct genotypic groups exist among L. fermentum isolated from sayur asin in Indonesia.
PENGARUH PENAMBAHAN GLISEROL PADA PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN NILA (Oreochromis niloticus)
Authors: Suryaningrum Lusi Herawati , Mulyasari Mulyasari , Samsudin Reza
Published: October 2019

The aim of this research was to determine the optimum percentage of glycerol addition into the diets of  Nile Tilapia (Oreochromis niloticus) on growth performance, feed convertion ratio, and survival rate. The research was conducted using 15 aquaria with the size of 60 x 50 x 45 cm3, each containing 25 O. niloticus with average initial weight of 4.63 ± 0.15 g. The experiment was conducted using a complete random design with five treatments and three replications. Isonitrogenous (31%) and isocaloric (17 MJ.kg-1) diets were provided for 60 days of rearing period. Five diets were formulated with glycerol content of 0% (G0); 5% (G5); 10% (G10); 15% (G15), and 20% (G20). Fish were fed twice daily with experimental diet at satiation level. The result showed that addition of 10% glycerol in the diet (G10) presented the highest values for weight gain (105.85 ± 0.40%), specific growth rate (3.44 ± 0.01%), protein retention (27.75 ± 0.02%), protein efficiency ratio (2.53 ± 0.15%), lipid retention (60.44 ± 0.03%), and feed convertion ratio (1.59 ± 0.01%) (P < 0.05). Survival rate was not affected by dietary containing glycerol (P > 0.05). Therefore, addition of 10% glycerol into the diet gave a significant increase on growth performance and feed convertion ratio without adverse effect on survival rate of Nile Tilapia.
KARAKTERISASI ENZIM PROTEASE DARI BAKTERI Stenotrophomonas sp. ASAL GUNUNG BROMO, JAWA TIMUR
Authors: Soeka Yati Sodaryati , Sulistiani Sulistiani
Published: October 2019

Protease is an enzyme that can hydrolyze protein into simpler compounds, i.e peptides and amino acids. Microbial Proteases have the  potency to be applied in industries such as detergents, skins, silver recovery, dairy, baking, beverages and pharmaceutical industries. These hydrolytic enzyme are efficiently involved in the food industry to increase the nutritional value, digestibility, palatability, flavour and reducing allergenic compounds as well as in the management of domestic and industrial wastes. The purpose of this study was to investigate the ability of Stenotrophomonas sp. isolated from Mount Bromo, East Java in producing protease. Protease activity of the bacterial isolate was qualitatively determined by formation of a clear zone surrounded their colonies on media containing skim milk (1%). We analyzed its  proteolic activity against some effects of the incubation period, pH, temperatures and addition of monovalent and divalent metal ionsquantitatively using a spectrophotometer at ? 280 nm.The results showed that the optimum activity after incubation for two days was 315.88 U/ mL. The enzyme has continued to its activity at pH 8 (419.68 U/mL) and maintained its stability at 398.22 U/mL with activities decreased to 94.87%, while its activity at 60°C was 519.86 U/mL and could maintain its stability at 419.58 U/ mL, the activity decreased to 74.75%. The addition of Ca2+ could activated its enzyme activity at the amount of 424.33U/mL, while without addition of the ion its activity was 400.29 U/mL. The addition with ion Mn²+, K+, Na+ and Cu 2+ could act as inhibitors that might reduced the activity of the enzyme.
KOMPOSISI DAN DOMINASI PATOTIPE Xanthomonas oryzae pv. oryzae, PENYEBAB PENYAKIT HAWAR DAUN BAKTERI PADA TANAMAN PADI DENGAN SISTEM PENGAIRAN BERBEDA DI KABUPATEN KARAWANG
Authors: Yuliani Dini , Natasuwirya Sudir
Published: October 2019

Bacterial leaf blight (BLB) is the major disease of rice caused by the bacteria Xanthomonas oryzae pv. oryzae (Xoo), that has various pathotypes making it difficult to control. This research was aimed to determine Xoo pathotype group in irrigated paddy fields with different of planting time based on differences of irrigation system in Jatiluhur Reservoir. The research was conducted in Karawang District the wet season (WS) of 2013/2014 and dry season (DS) of 2014 through survey and sampling of infected rice leaves of BLB. Isolation of Xoo bacte-ria was done in the laboratory by using dilution methods. Xoo pathotype test was carried out by inoculating Xoo isolate on five different varieties in Indonesian Center for Rice Research’s green house, West Java. Observation of disease severity was done by measuring symp-toms of the disease that appeared at two and four weeks after inoculation. The disease severity of ?11% was classified as resistant (R), and for the disease severity of >11% was classified as susceptible (S). The results obtained a total of 602 Xoo isolates from rice plant samplings of irrigated rice fields in Karawang with irrigation systems I, II, III, and IV. At WS 2013/2014 was obtained 448 Xoo isolates consists of 29.69% of pathotype III; 40.85% of pathotype IV, and 29.46% of pathotype VIII. While, at DS 2014 was obtained 154 Xoo isolates consists of 1.95% of pathotype III, 53.25% of pathotype IV, and 44.80% of pathotype VIII. The areas with Type I of irrigation systems were domi-nated by Xoo pathotype IV in two cropping seasons. The areas with Type II of irrigation system dominated by Xoo pathotype IV in the wet season, while the dry season was dominated by Xoo pathotype VIII. The areas with Type III of irrigation system were dominated by Xoo pathotype III in the wet season, whereas during dry season was dominated by Xoo pathotype IV. The areas with Type IV of irrigation sys-tem were dominated by Xoo pathotype IV during wet season. Over all, in the dry season, Xoo pathotype IV was the dominant pathotype especially in irrigation systems Type I and IV. The dominance of Xoo pathotype can determine the resistant varieties that grown in the areas with different planting times on different irrigation systems.
KAJIAN ETNOBOTANI PERUBAHAN FUNGSI LAHAN, SOSIAL DAN INISIATIF KONSERVASI MASYARAKAT PULAU ENGGANO
Authors: Royyani Mohammad Fathi , Lestari Vera Budi , Efendy Oscar
Published: October 2019

This research aims to see the land use change within ethnobotanical perspective. According to observation, interview, and Participatory Rural Appraisal (PRA) it was known that land in Enggano Island have been changed, even the sacred forest transformed, into kebun/garden and ladang/field. The changes of land use was related with demography, economic, and socio-cultural changes in society. Social change affected the species that were planted by the community. The species with a high economic value and a quick harvest and did not need extra treatment planted by local people to replace the previous plants. The other impact that arises is the exixtence of local initiative to restore areas that should functioned as a forest.
STRATIFIKASI SIMPANAN KARBON DIATAS PERMUKAAN TANAH PADA LAHAN GAMBUT PASANG SURUT DAN LEBAK
Authors: Zakiah Siti Nur , Wakhid Nur , Nursyamsi Dedi
Published: October 2019

The carbon stored in peatlands is huge not only from soil but also from vegetation. Carbon stocks can decrease when there are human activities such as land use changes. Measuring and monitoring carbon stocks are necessary as the basis for assessment of the impact of land management technology applications to conservation and carbon emissions associated with sustainable management system of peatland. The purpose of this study was to determine the stratification of above ground C-stock in tidal peatland and fresh water swampland. Above ground C-stock stratification based on the types of vegetation. The stratification was conducted to distinguish vegetation conditions based on the volume of biomass and carbon content in an observation plot. The measurement of above ground C-stock was carried out by destructive and non destructive refers to Hairiah K and Rahayu (2007), after that the estimation of carbon stockswas conducted on tidal peatland (land use rubber + pineapple, rubber folk and shrubs) and peat in fresh water swampland (land use rubber 4-5 years and 2-3 years). The results showed that the types of vegetation, plant density and management affect of carbon stocks. Carbon stocks in tree vegetation are higher than shrubs. The high of plant density affects the sunlight used for photosynthesis, through photosynthesis, CO2 is absorbed and converted by plants into organic carbon in the form of biomass. Arrangement and maintenance of the plant affects the storage of carbon in a land use.
SINOPSIS Begonia LIAR DI SUMATERA BARAT
Authors: Girmansyah Deden
Published: October 2019

The diversity of wild Begonia in West Sumatra is not well understood, while the habitat of Begonia has continuedly decreased by human activity or natural disaster. Therefore, some species are seriously undert hreat. Examinations of Begonia spp. were carried out using herbarium specimens from Andalas University Herbarium (ANDA), Herbarium Bogoriense (BO) and some field works in West Sumatra were conducted. A total of 33 species of Begonia were collected and identified as species level and could be used for identied Begonia species from West Sumatra.
CATATAN BEBERAPA JAMUR MAKRO DARI PULAU ENGGANO: DIVERSITAS DAN POTENSINYA
Authors: Susan Dewi , Retnowati Atik
Published: October 2019

A Thirty one species of macro fungi which belong to phylum Basidiomycota and Ascomycota were found from three villages in Enggano Island. Among those, nine species are new records for Sumatera, namely Phellinus gilvus, Fomitella supina, Flaviporus liebmannii, Coriolopsis polyzona, Flabellophora sp., Trichaptum byssogenum, Stecherrinum sp., Stereum cf. pergameneum dan Trametes cf. villosa, whilst other two species, namely Cookeina cremeirosea and Fomitella supina are new for Indonesia. One species, Phellinus gilvus, has been known as a harmful parasite on rubber plantation. Six are recognized as edible mushrooms, namely Pleurotus ostreatus, Volvariella volvacea, Schizophyllum commune, Auricularia auricula-judae, Lentinus sajor-caju, and Panus neostrigosus. Two species, Favolus grammocephalus and Panus neostrigosus are therapeutic agents, and two others, Earliella scabrosa and Pycnoporus sanguineus are potential species as color degradation agents.
REPRODUCTIVE BIOLOGY OF STRIPED SNAKEHEAD (Channa striata Bloch, 1973) IN BOGOR AND BEKASI, WEST JAVA
Authors: Saputra Adang , Ath-thar Muhamad Hunaina Fariduddin , Samsudin Reza , Putri Fera Permata , Prakoso Vitas Atmadi
Published: October 2019

Striped snakehead is one of the potential local species, however, its production in Indonesia still comes from capture fisheries. Over exploitation had decrease the population in nature. Domestication is one of promising tool to solve the problems faced. In order to breed the domesticated species, the information of their reproduction was needed. This study aimed to describe relationship between length and weight, length and fecundity, weight – fecundity and gonad weight – fecundity of the striped snakehead from West Java. A total of 19 mature female specimens were collected from Parung (Bogor), and seven mature female specimens were collected from Babelan (Bekasi). The results showed that the determinant value (R2), the first for Parung and the second for Babelan, between weight and fecundity were 0.599 and 0.843, length-fecundity were 0.541 and 0.841; gonad weight – fecundity 1.00 and 0.846 Gonadosomatic Index (GSI) ranged from 0.67 to 9.94% and 2.03 to 8.17%. Gonad Index ranged from 6.17 – 76.73 and 18.48 – 76.77, respectively. The data indicated that growth pattern was allometric. Length and body weight has linear relationship with gonads and fecundity. Fecundity has higher correlation to the weight rather than length. Gonad weight and fecundity has a strong relationship.
Two-Phase Expander Approach for Next Generation of Heat Recovery Systems
Authors: Panesar Angad S , Bernagozzi Marco
Published: October 2019

This study presents the numerical adaptations to the semi-empirical expander model in order to examine the feasibility of piston expanders under off-design and two-phase scenarios. This expander model considers supply valve pressure drop, condensation phenomena, heat losses, leakage losses and friction losses. Using Aspen HYSYS©, the expander model is utilised in simulating the next generation of integrated engine cooling and exhaust heat recovery system for future heavy-duty engines. The heat recovery system utilises water-propanol working fluid mixture and consists of independent high pressure (HP) and low pressure (LP) expander. The results of off‑design and two-phase operation are presented in terms of expander efficiency and the different sources of loss, under two distinctive engine speed-load conditions. The heat recovery system, operating with the LP expander at two-phase and the HP expander at superheated condition, represented the design point condition. At the design point, the system provided 15.9 kW of net power, with an overall conversion efficiency of 11.4%, representing 10% of additional engine crankshaft power. At the extreme off-design condition, the two-phase expander operation improved the system performance as a result of the nullification of leakage losses due to the much denser working fluid. The optimised two-phase operation of the LP expander (x=0.55) and the HP expander (x=0.9) at the extreme-off design condition improved the system power by nearly 50% (17.4 vs. 11.7 kW) compared to the reference state. Finally, adapting piston air motors as two-phase expanders for experimental evaluation and reduction in frictional losses was a recommended research direction. ©2019. CBIORE-IJRED. All rights reserved
Gasification of Pelletized Corn Residues with Oxygen Enriched Air and Steam
Authors: Sittisun Poramate , Tippayawong Nakorn , Shimpalee Sirivatch
Published: October 2019

This work studied generation of producer gas using oxygen-enriched air and steam mixture as gasifying medium. Corn residues consisting of cobs and stover were used as biomass feedstock. Both corn residues were pelletized and gasified separately with normal air, oxygen enriched air and steam mixture in a fixed bed reactor. Effects of oxygen concentration in enriched air (21-50%), equivalence ratio (0.15-0.35), and steam to biomass ratio (0-0.8) on the yield of product gas, the combustible gas composition such as H2, CO, and CH4, the lower heating value (LHV), and the gasification efficiency were investigated. It was found that the decrease in nitrogen dilution in oxygen enriched air increased proportion of combustible gas components, improved the LHV of producer gas, but gasification efficiency was not affected. The increase in equivalence ratio favoured high product gas yield but decreased combustible gas components and LHV. It was also observed that introduction of steam enhanced H2 production but excessive steam degraded fuel gas quality and decreased gasification efficiency. The highest gasification efficiency of each oxygen concentration was at equivalence ratio of 0.3 and steam to biomass ratio of 0.58 for cob, and 0.22 and 0.68 for stover, respectively. ©2019. CBIORE-IJRED. All rights reserved
Microgrids for rural schools: An energy-education accord to curb societal challenges for sustainable rural developments
Authors: Chatterjee Abhi , Brent Alan , Rayudu Ramesh , Verma Piyush
Published: October 2019

Quality education and schools have a key role to play in the sustainable development of society. Unfortunately, many remote communities in developing countries fail to enjoy access to quality education due to a lack of electricity, thereby interrupting regular school services in the villages. The main objective of the paper contributes to understanding the importance of the energy-education accord, and aims to curb the social challenges prevailing in the villages. Specifically, the paper suggests a technical intervention by designing a hybrid renewable energy system for such schools. The approach is demonstrated through a case study with a load demand of approximately 4 kWh/d, comprising a class size of 40 students. A techno-economic evaluation of the energy system reveals the levelized cost of energy of the system at USD 0.22 per kWh, which may be affordable considering number of other aspects, outlined in this paper, to enable a larger uptake of such systems in developing countries. ©2019. CBIORE-IJRED. All rights reserved
Agro-residues and weed biomass as a source bioenergy: Implications for sustainable management and valorization of low-value biowastes
Authors: Deb Utsab , Bhuyan Nilutpal , Bhattacharya Satya Sundar , Kataki Rupam
Published: October 2019

Biomass resources are gaining increasing importance world over due to their ease of conversion to various energy product in the face of depleting fossil fuel store and increasing environmental concerns over their use. The present work elucidates different physico-chemical properties of three biomasses, paddy straw (PS)- an agricultural residue, spent paddy straw obtained after mushroom cultivation (SS), and a noxious weed (Parthenium hysterophorus; PR) to understand their properties and to explore the feasibility of using them as feedstocks in different biomass to bioenergy conversion routes. In addition to physico-chemical analysis, biochemical analysis of these biomasses along with XRD, thermogravimetric analysis, FTIR and SEM analysis have been carried out. Present study suggests that PS is a better choice as feedstock compared to both PR and SS. The calorific value to ash content ratio is more in PS (1.13) as compared to PR (1.06) and SS (0.84). Thus, it may be inferred that the biomasses in question are at par with commonly used bio-energy feedstocks like sugarcane bagasse and corn cob. ©2019. CBIORE-IJRED. All rights reserved
Anaerobic Co-Digestion of Water Hyacinth (E. crassipes)  with Ruminal Slaughterhouse Waste for Biogas Production
Authors: Omondi Erick Auma , Njuru Peter Gikuma , Ndiba Peter Kuria
Published: October 2019

The use of biomass as renewable energy source is of interest in reducing dependence on fossil fuels and associated impacts of climate change. Water hyacinth (WH), an invasive aquatic plant of environmental concern has large biomass that is available for biogas production. Co-digestion of this largely lignocellulose biomass with other substrates may correlate process parameters and improve biogas production. This study evaluated co-digestion of WH biomass with various mix proportions of ruminal slaughterhouse waste (RSW) at 24, 32 and 37°C in order to assess the optimum proportion and temperature. The rate of biomethanation increased with temperature from 0.23 at 24ºC to 0.75 and 0.96 at 32ºC and 37ºC, respectively, and similarly methane yield improved from 14 at 24ºC to 40 and 52 L/kg air dried water hyacinth at 32ºC and 37ºC respectively. A WH: RSW ratio of 30% showed optimum acclimatization and methane yield in a residence time of 60 days. The duration of the initial drop in pH that indicates hydrolysis stage decreased with increase in proportion of RSW, indicating faster hydrolysis and fermentation processes. Longer and stable latter alkaline pH zone suggested improved biomethanation and greater biogas production. Co-digestion with 30% RSW at 24ºC improved biogas yield by 75% from 8.05 to 14.09L/Kg biomass, methane component of biogas by 9% from 59 to 68% and reduced the retention time for substrate by 36%, suggesting synergy in co-digestion with respect to biogas quality. Changing the temperature from 24 to 32ºC increased the yield by 186% and reduced retention time by 73%. The results demonstrated synergy in co-digestion of the two substrates and the process dynamics that are useful in a possible process commercialization. ©2019. CBIORE-IJRED. All rights reserved