bluuebunny/crossref_metadata_2025 huggingface dataset:
Multidrug resistance of Acinetobacter baumannii in Ladoke Akintola University Teaching Hospital, Osogbo, Nigeria
Authors: Odewale G. , Adefioye O. J. , Ojo J. , Adewumi F. A. , Olowe O. A.
Published: September 2016

Acinetobacter baumannii is a ubiquitous pathogen that has emerged as a major cause of healthcare-associated infections at Ladoke Akintola University Teaching Hospital. Isolates were assayed according to standard protocol. The isolates were subjected to molecular techniques to detect blaOXA, blaTEM, blaCTX-M, and blaSHV genes in strains of the A. baumannii isolates.

The prevalence of A. baumannii was 8.5% and was most prevalent among patients in the age group 51–60 (36%); the male patients (63.6%) were more infected than their female counterparts. Patients (72.7%) in the intensive care unit (ICU) were most infected with this organism. The isolates showed 100% resistance to both amikacin and ciprofloxacin and 90.9% to both ceftriaxone and ceftazidime, while resistance to the other antibiotics used in this study were: piperacillin (81.8%), imipenem (72.7%), gentamycin (72.2%), and meropenem (63.6%). None of the isolates was, however, resistant to colistin. PCR results showed that blaOXA, blaTEM, and blaCTX-M genes were positive in some isolates, while blaSHV was not detected in any of the isolates.

This study has revealed that the strains of A. baumannii isolated are multiple drug resistant. Regular monitoring, judicious prescription, and early detection of resistance to these antibiotics are, therefore, necessary to check further dissemination of the organism.
IN VITRO GROWTH RATE OF Kappaphycus alvarezii MICROPROPAGULE AND EMBRYO BY ENRICHMENT MEDIUM WITH SEAWEED EXTRACT
Authors: Suryati Emma , Rosmiati Rosmiati , Parenrengi Andi , Tenriulo Andi
Published: September 2016

The development of micropropagule and embryo of seaweed depend on nutrient and fertilizer used. Seaweed has been reported contain hormone regulators such as auxine, cytokinine, gibbereline, and various minerals applied in stimulating the growth ocra plant and wheat culture. The objectives of this study were to determine the potential of Kappaphycus alvarezii extract and its optimal concentration in accelerating of Kappaphycus alvarezii micropropagule and embryo growth. Micropropagule and embryo produced through callus induction were planted into PES 1/20 liquid medium supplemented with seaweed extract at the concentrations of 0 (control), 25, 50, 75, and 100 μL in 10 mL of medium. The results showed that medium enrichment with 50 μL of seaweed extract had the highest survival rate and growth of thallus. In addition, this concentration was also resulted in a good performance of K. alvarezii thallus with the lighter color. The advantage of this study for seaweed cultivation in Indonesia, among others, seaweed can be used as fertilizer, especially in the maintenance of seaweed seed, so that cultivation can be better develop.
THE EFFECTS OF CRUDE RECOMBINANT VIRAL PROTEIN VACCINES AGAINST GROUPER SLEEPY DISEASE IRIDOVIRUS (GSDIV) ON HUMPBACK GROUPER (Cromileptes altivelis)
Authors: Mahardika Ketut , Mastuti Indah
Published: September 2016

Infection of Megalocytivirus cause serious mass mortality in marine fish in South East Asian countries. The aim of this study was to produce recombinant of GSDIV capsid protein and its protection to humpback grouper Cromileptes altivelis against grouper sleepy disease iridovirus (GSDIV). A major capsid protein (MCP) was selected for use as a crude subunit vaccines. This gene target (MCP) was inserted to the protein expression system vector of pET SUMO and cloned in cells bacteria Escherichia coli strain BL-21. The MCP was succeded to be induced using 1 mM of IPTG. Results of protein analysis using MALDI TOF-TOF indicated that the MCP has measurement of 49.566 kDa with PI index of 6.00, and contained 453 amino acids. BLAST homology analysis exhibited that the amino acid sequence of the MCP showed high similarity with MCP of Red Sea Bream Iridovirus (RSIV). E. coli expressing MCP protein was inactivated using 0.03% formalin overnight and washed using PBS. The inactivated E. coli as a crude subunit vaccine was then injected intramuscularly to humpback grouper juveniles. Subsequently, the juveniles were challenged tested with GSDIV. The juveniles vaccinated with the MCP recombinant bacteria showed significantly higher survival rates than control those vaccinated with PBS. Thus, the MCP fusion protein is considered as a potential vaccine against GSDIV infections in grouper.
DINAMIKA EKOLOGI LAUT SULAWESI (WPP 716) SEBAGAI DAYA DUKUNG TERHADAP PERIKANAN MALALUGIS (Decapterus macarellus Cuvier, 1833)
Authors: Rahmadi Puji , Puspasari Reny
Published: September 2016

Ikan Malalugis adalah ikan pelagis kecil yang merupakan hasil tangkapan utama nelayan di perairan Laut Sulawesi. Pada tahun 2012 dilaporkan bahwa perikanan pelagis kecil menjadi salah satu hasil perikanan yang penting, dan hasil tangkapan yang dominan dari perikanan pelagis kecil tersebut adalah ikan malalugis biru (Decapterus macarellus). Jenis ikan malalugis memiliki sifat bermigrasi dan membentuk gerombolan kecil yang mana sangat dipengaruhi oleh kondisi lingkungannya. Tipe arus pasut di Teluk Manado (Laut Sulawesi) merupakan arus pasut bolak balik (reversing current). Banyaknya arus yang begitu aktif merupakan salah satu faktor yang mendukung habitat ikan malalugis. Diduga kekhasan sifat distribusi arus di daerah laut Sulawesi ini yang membuat kelimpahan ikan malalugis relatif tinggi di perairan Sulawesi Utara dibandingkan dengan daerah perairan lainnya di Indonesia. Kelimpahan ikan malalugis yang tinggi mendorong ikan ini menjadi komoditas penting dalam sektor perikanan di Laut Sulawesi. Meski demikian pada tahun 2012 dilaporkan bahwa tingkat produksi ikan malalugis mengalami penurunan. Hal ini diduga karena terlalu tingginya tingkat eksploitasi atau diakibatkan oleh adanya perubahan dalam kondisi ekosistem ikan tersebut di Laut Sulawesi. Oleh karena itu studi ini dilakukan untuk mengkaji tingkat daya dukung lingkungan terhadap keberlangsungan sumberdaya perikanan malalugis di wilayah perairan Laut Sulawesi.

Malalugis fish is a small pelagic fish that constitute the main catch of fishermen in the waters of North Celebes Sea. In 2012 it was reported that small pelagic fishery became one of the important fishery products and it was dominated by the species of Malalugis (Decapterus macarellus). This species has a typical behavior which was highly mobility and forming fish schooling and strongly influenced by environmental conditions. The type of tidal current in North Sulawesi coast is reversing current. This kind of current could make a very active current in the water which is suitable for the habitat of Malalugis. This distinctiveness of current was considered as a trigger for relatively high abundance of Malalugis in this area compared to its abundance in other water body of Indonesian territory. In 2012, total catch of this species has been reported to be decreased; thismay caused by either high level of exploitation nor changing on its habitat or even both. This study was conducted to investigate the capability of ecosystem and habitat of Malalugis to support its sustainability.
PRODUKSI PERIKANAN TUNA HASIL TANGKAPAN RAWAI TUNA YANG BERBASIS DI PELABUHAN BENOA, BALI
Authors: Jatmiko Irwan , Setyadji Bram , Novianto Dian
Published: September 2016

Perikanan tuna merupakan salah satu primadona perikanan di Indonesia dengan total produksi mencapai 1.297 ton dari tahun 2004 hingga 2011. Penelitian ini bertujuan untuk mengetahui produksi dan kisaran panjang hasil tangkapan tuna dari kapal rawai tuna yang berbasis di Pelabuhan Benoa, Bali. Pengumpulan data dilakukan dengan metode sampling pada 16 unit perusahaan pengolahan ikan tuna di Pelabuhan Benoa pada periode 2010-2014. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dimana penelitian ini ditujukan untuk menggambarkan fenomena yang terjadi pada perikanan rawai tuna dan hasil tangkapannya. Total sebanyak 4.406 kapal tuna longline yang melakukan pendaratan hasil tangkapannya di Pelabuhan Benoa, Bali pada periode 2010-2014. Rata-rata persentase ekspor tertinggi adalah jenis ikan tuna mata besar sebesar 68% diikuti oleh madidihang (52%) dan tuna sirip biru selatan (31%). Ukuran panjang ikan madidihang berfluktuasi dengan rata-rata 130 cm dan kisaran panjang antara 121-135 cm. Panjang tuna mata besar cenderung stagnan dengan rata-rata 122 cm dan kisaran panjang antara 119-126 cm. Sedangkan panjang rata-rata tuna sirip biru selatan cenderung menurun dengan rata-rata 167 cm dan kisaran panjang 162-171 cm. Ketiga spesies ini rata-rata telah melakukan pemijahan sebelum ditangkap. Hal ini baik untuk menjaga stok tuna karena ikan yang tertangkap telah melakukan pemijahan sehingga dapat mendukung kelestarian sumberdaya tuna di Samudera Hindia. Tuna fishery is one of the important fisheries in Indonesia with total production reached 1,297 tons from 2004 to 2011. This study aims to determine the production and length frequencies of tuna catches from tuna longline vessels based in Benoa Port, Bali. Data collection was conducted using enumeration method in the 16 units of tuna fish processing company in Benoa Port in the period 2010-2014. The method used in this research is descriptive method in which the research is intended to describe the phenomenon that occurs in longline tuna fishery and the catch. A total of 4,406 tuna longline vessels were landed their catch in Benoa Port, Bali in the period 2010-2014. The highest average percentage for catch export is big eye tuna with 68% followed by yellowfin tuna (52%) and southern bluefin tuna (31%). The length of yellowfin tuna were fluctuated with average 130 cm and range from 121-135 cm. The length of bigeye tuna tends to stagnant with average 122 cm and range from 119-126 cm. While the length of the southern bluefin tuna tends to decrease with an average length of 167 cm and the range of 162-171 cm. All three species were assumed to have spawned before being caught. It is assure to keep stock of fish on the save level because maintain the regeneration to support the sustainable of tuna resources in the Indian Ocean.
KARAKTERISTIK UPAYA DAN DAERAH PENANGKAPAN PUKAT CINCIN PELAGIS BESAR YANG BERPANGKALAN DI PPS BITUNG
Authors: Wibowo Sandi , Suryanto Suryanto , Nugroho Duto
Published: September 2016

Pelabuhan Perikanan Samudra Bitung berperan penting dalam mendukung operasi armada perikanan pukat cincin pelagis besar yang ditujukan untuk memanfaatkan sumberdaya ikan tuna di WPPNRI 714, 715, 716 dan 717 yang mewakili perairan kepulauan, ZEEI dan laut lepas. Analisis deskriptif terhadap data logbook 2011-2013 perikanan pukat cincin pelagis besar ditujukan untuk mendapatkan karakteristik armada, sebaran daerah dan aktivitas penangkapan pukat cincin yang berpangkalan di PPS Bitung. Karakteristik upaya ditekankan pada rerata dimensi dan ukuran panjang kapal pukat cincin pelagis besar yang beroperasi memberikan informasi bahwa armada yang beroperasi pada 2013 berukuran rata-rata panjang 22,9 m (dengan kisaran 12,7 – 33,5) dengan ukuran bobot kapal 69,6 GT (18-200) serta kekuatan mesin sebesar 317,5 DK (80-1200). Operasional penangkapan menggambarkan kisaran jarak dan durasi antar tawur pada rumpon. Hasil analisis memberikan indikasi bahwa dari 106 unit kapal pukat cincin yang beroperasi 49% diantaranya aktif menangkapi 1 WPP, 41% di 2 WPP, dan 10% di 3 WPP, tidak ditemukan kapal yang beroperasi di empat WPP. Sebaran aktivitas penangkapan tertinggi pada 2013 ditemukan di WPP 715 sebesar 1828 tawur sedangkan terendah ditemukan di laut lepas sejumlah 9 tawur. Laju tangkap tertinggi pada 2013 (20,9 ton/tawur) terdapat di WPP 714 sedangkan hasil tangkapan per tawur terendah (6,11 ton/tawur) ditemukan di WPP 716. Musim penangkapan yang diwakili oleh frekuensi upaya tawur bulanan tidak menggambarkan adanya perbedaan yang nyata. Ocean fishing port of Bitung has an essential role provides fishing operation needs of tuna and skipjack purse seine fishery that operating their fleets in four Fisheries Management Areas (FMAs) 714, 715, 716 and 717 represent archipelagic, IZEE and high seas waters. Fisheries logbook and Vessel Monitoring System (VMS) data were collected during the port performance research program in 2014.  Exploratory data analyses were applied to data of 2011 to 2013. The objective of this study is to describe the purse seine fleet characteristics, distribution of fishing grounds including estimate of catch rates. Integrating VMS data and logbook were explored to estimate range of distance and duration between fishing activities. The average length over all (LOA) of active vessels in 2013 was 22.9 m (12.7 – 33.5 m) with tonnage of 69.6 GT (18-200 GT) and engine power of 317.5 HP (80-1200 HP). Descriptive analysis indicates that 49% of 106 vessels operate only in one FMA, 41% in two FMAs and the last 10% operate in three FMAs, no fleet operate in four FMAs. The highest fishing activities in 2013 found in FMA 715 with 1828 hauls while the lowest are found on the high seas with 9 hauls. The highest catch per unit effort in 2013 was found on FMA 714 (20.9 tons/setting) while the lowest was found in FMA 716 (6.11 tons/setting). Fishing season is represented by frequency of gear setting indicated that there is no significantly seasonal difsference.
The Paris Agreement: Consequences for the EU and Carbon Markets?
Authors: Andresen Steinar , Skjærseth Jon Birger , Jevnaker Torbjørg , Wettestad Jørgen
Published: September 2016

Most observers argue that this agreement is a step in the right direction. However, we do not know how effective it will be in terms of reducing emissions. We therefore discuss its potential effectiveness regarding EU climate policies and carbon markets. We argue that the Paris Agreement may have a positive effect but uncertainties abound.
Predicting Paris: Multi-Method Approaches to Forecast the Outcomes of Global Climate Negotiations
Authors: Sprinz Detlef F. , Bueno de Mesquita Bruce , Kallbekken Steffen , Stokman Frans , Sælen Håkon , Thomson Robert
Published: September 2016

We examine the negotiations held under the auspices of the United Nations Framework Convention of Climate Change in Paris, December 2015. Prior to these negotiations, there was considerable uncertainty about whether an agreement would be reached, particularly given that the world’s leaders failed to do so in the 2009 negotiations held in Copenhagen. Amid this uncertainty, we applied three different methods to predict the outcomes: an expert survey and two negotiation simulation models, namely the Exchange Model and the Predictioneer’s Game. After the event, these predictions were assessed against the coded texts that were agreed in Paris. The evidence suggests that combining experts’ predictions to reach a collective expert prediction makes for significantly more accurate predictions than individual experts’ predictions. The differences in the performance between the two different negotiation simulation models were not statistically significant.
Editorial to the Issue on Climate Governance and the Paris Agreement
Authors: Hovi Jon , Skodvin Tora
Published: September 2016

This thematic issue of Politics and Governance serves as a Festschrift in honor of Professor Dr. Philos. Arild Underdal on his 70th birthday. In this editorial, the guest editors summarize a few of Professor Underdal’s many academic merits and achievements. They also provide a synopsis of each of the ten contributions to the Festschrift, which focuses on climate governance in general and the 2015 Paris Agreement in particular.
Padronização de metodologia para desinfecção microbiana do chorume.
Authors: NOE Monise Campanaro , SILIANO Priscila Reina
Published: September 2016

O chorume é um dos grandes problemas dos aterros sanitários devido a enorme quantidade produzida diariamente e sua alta capacidade poluidora, podendo causar danos ao meio ambiente e a saúde pública. O objetivo deste trabalho foi identificar uma metodologia eficiente para inertizar os micro-organismos encontrados no chorume e assim desinfectá-lo, de modo que não seja outra fonte poluidora. Para isso foram realizados alguns testes de desinfecção usando: ultravioleta, fervura, congelamento, ácido clorídrico, água oxigenada, jarra anaeróbia e hipoclorito de sódio, em amostras de chorume retiradas de composteira doméstica. Na analise microbiológica foram observadas uma quantidade muito grande de bactérias e fungos, com predominância de bactérias do gênero Citrobacter. As análises realizadas mostraram a ineficiência dos métodos de desinfecção com exceção do teste com hipoclorito de sódio que possuiu ação desinfectante. O cloro, elemento bactericida, é o método mais indicado para a desinfecção de efluentes, pois oxida irreversivelmente os componentes das células dos microrganismos
A Comparação da Quantidade de Sódio e Gordura Trans em Alimentos Convencionais, Light e Diet pelos Dados Informados em Rotulagem de Produtos
Authors: UYEDA Mari , JUNQUEIRA Vanessa Aparecida de Souza
Published: September 2016

Apesar do crescente aumento do consumo de produtos diet e light pela população, muitas das pessoas acabam consumindo os produtos sem conhecer o conceito e qual a correta finalidade. O objetivo da presente pesquisa foi de avaliar o grau de conhecimento, compreensão e dúvidas mais freqüentes, dos alunos do Núcleo Básico de Saúde do Centro Universitário Amparense – UNIFIA, em relação aos produtos diet, light e convencionais, e suas respectivas quantidades de sódio e gordura trans de acordo com a rotulagem. No total 64 alunos participaram da pesquisa, respondendo a um questionário com 19 questões. Apesar de os entrevistados demonstrarem o consumo destes produtos como hábito, e procurarem visualizar a rotulagem, (78,13%), principalmente a tabela nutricional (39,06%), como fator que influencia o ato da compra e realizarem a comparação com os produtos convencionais, por acreditarem que os componentes variem de uma marca para outra (71,88%), principalmente em relação às quantidades de sódio e gorduras trans (56,25%), que são considerados pelos entrevistados fatores preocupantes, por estarem relacionadas à DCNT mesmo assim, ainda apresentam dificuldade para relacionar os conceitos e sua devida compreensão. É de extrema importância o esclarecimento de todas as dúvidas para que o consumo destes produtos se torne um aliado à população, desde que saibam em que situação utilizar
Terapia gênica: uma novidade científica a favor da saúde
Authors: COELHO Raissa Peres , RODRIGUES Aline Gritti , SILVA Joyce Beira Miranda da
Published: September 2016

O presente artigo, por meio de levantamento bibliográfico de livros e artigos científicos, objetiva uma abordagem clara e explicativa sobre os aspectos gerais da terapia gênica, cujo conceito baseia-se na inserção da cópia de um gene funcional ao genoma do indivíduo, para corrigir ou prevenir anormalidades genéticas adquiridas ou hereditárias. Esse método de tratamento e prevenção, embora ainda novo, já ultrapassou as barreiras experimentais e continua a apresentar grande potencial, provocando impacto considerável na medicina tradicional
Remote sensing of aerosol in the terrestrial atmosphere from space: new missions
Authors: Milinevsky G. , Yatskiv Ya. , Degtyaryov O. , Syniavskyi I. , Ivanov Yu. , Bovchaliuk A. , Mishchenko M. , Danylevsky V. , Sosonkin M. , Bovchaliuk V.
Published: September 2016

The distribution and properties of atmospheric aerosols on a global scale are not well known in terms of determination of their effects on climate. This mostly is due to extreme variability of aerosol concentrations, properties, sources, and types. Aerosol climate impact is comparable to the effect of greenhouse gases, but its influence is more difficult to measure, especially with respect to aerosol microphysical properties and the evaluation of anthropogenic aerosol effect. There are many satellite missions studying aerosol distribution in the terrestrial atmosphere, such as MISR/Terra, OMI/Aura, AVHHR, MODIS/Terra and Aqua, CALIOP/CALIPSO. To improve the quality of data and climate models, and to reduce aerosol climate forcing uncertainties, several new missions are planned. The gap in orbital instruments for studying aerosol microphysics has arisen after the Glory mission failed during launch in 2011. In this review paper, we describe several planned aerosol space missions, including the Ukrainian project Aerosol-UA that obtains data using a multi-channel scanning polarimeter and wide-angle polarimetric camera. The project is designed for remote sensing of the aerosol microphysics and cloud properties on a global scale.
Uso da cinza de biomassa na agricultura: efeitos sobre atributos do solo e resposta das culturas
Authors: De Arruda Jandeilson Alves , De Azevedo Thiago Anderson Oliveira , Freire José Lucínio De Oliveira , Bandeira Lucas Bochartt , Estrela José Wellington De Medeiros , Santos Sebastiana Joelma De Azevedo
Published: September 2016

Essa revisão de literatura objetiva identificar os efeitos da aplicação de cinza de biomassa vegetal sobre atributos do solo e sobre o crescimento e produção de espécies vegetais. A cinza de biomassa tem sido gerada por diversas atividades industriais e agroindustriais, sendo produzidas grandes quantidades de resíduo. A utilização agrícola desse material é uma alternativa ecologicamente correta e economicamente viável. A composição das cinzas é variável, sendo assim as modificações causadas no solo e resposta das culturas também variável. As principais alterações químicas resultantes da aplicação de cinza de biomassa, são elevação no pH e nos teores de Ca, Mg, K e P, além da redução dos teores de Al3+. A elevação do pH causado pela cinza estimula a atividade biológica favorecendo a decomposição de matéria orgânica e a atividade de algumas enzimas. A cinza pode elevar a retenção de água. A aplicação de cinza de biomassa tem elevado a altura das plantas, o seu diâmetro, número de folhas, massa seca da parte aérea e raízes, bem como o teor foliar de clorofila e nutrientes em diversas espécies, tanto olerícolas, como anuais e perenes, a exemplo da alface, azevém, aveia, milho, sorgo, algodão, girassol, mamona, café, bananeira, campins,  pinus e eucalipto.
Diagnóstico do cumprimento da NR-18, pelas empresas construtoras da grande João Pessoa, vinte anos após sua revisão
Authors: Medeiros Mirela Oliveira , Da Silva Meryhelen Rosas , De Souza Gabriella Cavalcante , Araújo Nelma Mirian Chagas
Published: September 2016

A NR-18 é a primeira norma específica criada para uma indústria. Essa norma visa a melhoria das condições de trabalho na indústria da construção, tendo por objetivos a promoção da saúde e a melhoria da qualidade de vida do trabalhador e a prevenção de acidentes de trabalho. O artigo em foco é resultado de uma pesquisa exploratória descritiva que teve como objetivo elaborar um diagnóstico quanto ao cumprimento da NR-18 pelas empresas construtoras da grande João Pessoa, vinte anos após sua revisão. O universo da pesquisa foi composto pelas empresas construtoras de edificações verticais cadastradas junto ao Sindicato da Indústria da Construção Civil de João Pessoa (Sinduscon-JP). Já a amostra, esta foi composta por dezesseis empresas construtoras que aceitaram participar da pesquisa e que possuíam, no momento da pesquisa, canteiros de obras na grande João Pessoa. Os resultados revelam que as empresas construtoras têm buscado o efetivo cumprimento das disposições que compõem a NR-18 nos seus canteiros de obras. Constata-se que os canteiros pesquisados possuem nota média igual a 9, sendo a menor nota obtida 8,45, e que a interpretação da norma, para alguns itens, ainda é realizada de forma distinta pela fiscalização e pelos gestores.
Utilização de cartuchos de polietileno reforçado com resíduo de toner para desenvolvimento de compósitos poliméricos
Authors: Boery Mirella Nagib De Oliveira , Caldas Luiz Henrique , José Nádia Mamede , D’ Ávila Marcos Akira
Published: September 2016

A inovação e a sustentabilidade caracterizam os principais critérios a serem considerados na gestão dos Resíduos de Equipamentos Eletroeletrônicos (REEE). O descarte inadequado dos REEE tem fomentado discussões no âmbito político e técnico por duas razões principais: o impacto negativo da contaminação ambiental por metais e o consumo energético ao longo de sua vida útil, que demandam uma busca pelo desenvolvimento de soluções otimizadas e de baixo custo. A Política Nacional de Resíduos Sólidos – Lei 12.305 –, em agosto de 2010, estabelece uma responsabilidade compartilhada pelo ciclo de vida dos produtos, abrangendo desde os fabricantes, consumidores e responsáveis pelos serviços públicos de limpeza urbana e manejo de resíduos sólidos. Entre esses resíduos, os plásticos de comodittes têm despertado grande interesse da população, sendo o polietileno de alta densidade (PEAD) um dos materiais que se encontra em maior proporção volumétrica nos resíduos sólidos urbanos. Foram preparados compósitos poliméricos à base de PEAD reciclado e virgem,
reforçados com resíduo de toner e negro de fumo. Os materiais foram caracterizados através do DRX, TGA e DSC. Observou-se que os reforços poderão conferir diferentes características – tais como a possível elevação
da estabilidade térmica com o negro de fumo –, enquanto o toner não afeta significativamente as propriedades do PEAD.
A Strategy for Incorporating Learning Analytics into the Design and Evaluation of a K-12 Science Curriculum
Authors: Monroy Carlos , Snodgrass Rangel Virginia , Whitaker Reid
Published: September 2016

In this paper, we discuss a scalable approach for integrating learning analytics into an online K–12 science curriculum. A description of the curriculum and the underlying pedagogical framework is followed by a discussion of the challenges to be tackled as part of this integration. We include examples of data visualization based on teacher usage data along with a methodology for examining an inquiry-based science program. With more than one million students and fifty thousand teachers using the curriculum, a massive and rich dataset is continuously updated. This repository depicts teacher and student usage, and offers exciting opportunities to leverage data to improve both teaching and learning. In this paper, we use data from a medium-sized school district, comprising 53 schools, 1,026 teachers, and nearly one-third of a million curriculum visits during the 2012–2013 school year. This growing dataset also poses technical challenges such as data storage, complex aggregation, and analyses with broader implications for pedagogy, big data, and learning.
Temporal Learning Analytics for Adaptive Assessment
Authors: Papamitsiou Zacharoula , Economides Anastasios A.
Published: September 2016

Accurate and early predictions of students’ performance could significantly affect interventions during teaching and assessment, which gradually could lead to improved learning outcomes. In our research work, we seek to identify and formalize temporal parameters as predictors of performance (“temporal learning analytics”-TLA) and examine students' temporal behaviour (i.e. in terms of time-spent) during testing. The goal is to specify a functional set of parameters that will be embedded in an adaptive assessment system in order to contribute to personalization of feedback services. We adopted the Partial Least-Squares (PLS) analysis method for formulating the causal dependencies between latent variables and the relations to their indicators. In this paper we present the motivation and rationale of our work, along with the followed methodology, initial results and contributions so far, and our plans on future work.
Learning Analytics Research, Theory and Practice: Widening the Discipline
Authors: Pardo Abelardo , Teasley Stephanie
Published: September 2016

This article introduces the special issue presenting five papers from SoLAR’s Learning Analytics and Knowledge 2014 conference. The authors of these papers were invited to expand their original papers to provide a more in-depth view of their work and one that would reach out to a broad audience. The papers included here provide a view into the diversity of LA research presented at LAK 14 and demonstrate exciting new avenues by which the field is expanding. We believe that the papers presented here move the field ahead by contributing to a wider discourse about how we can effectively and ethically utilize “big data” to inform learning research and theory, and the resulting practices that support learning.
Labour Market Driven Learning Analytics
Authors: Kobayashi Vladimer Birondo , Mol Stefan , Kismihok Gabor
Published: September 2016

This paper briefly outlines a project about integrating labour market information in a goal-setting learning analytics application that provides guidance to students in their transition from education to employment.
Statistical Discourse Analysis: A method for modeling online discussion processes
Authors: Chiu MIng Ming , Fujita Nobuko
Published: September 2016

Online forums (synchronous and asynchronous) offer exciting data opportunities to analyze how people influence one another through their interactions. However, researchers must address several analytic difficulties involving the data (missing values, nested structure [messages within individuals within topics], non-sequential messages), outcome variables (discrete outcomes, rare instances, multiple outcome variables, similarities among nearby messages), and explanatory variables (sequences of explanatory variables, indirect mediation effects, false positives, and robustness of results). We explicate a method that addresses these difficulties (Statistical Discourse Analysis or SDA) and illustrate it on 1,330 asynchronous messages written and self-coded by 17 students during a 13-week online educational technology course. Both individual characteristics and message attributes were linked to participants’ online messages. Men wrote more messages about their theories than women did. Moreover, some sequences of messages were more likely to precede other messages. For example, opinions were often followed by elaborations, which were often followed by theorizing.
Curricular Design Analysis: A Data-Driven Perspective
Authors: Mendez Gonzalo , Ochoa Xavier , Chiluiza Katherine , De Wever Bram
Published: September 2016

Learning analytics has been as used a tool to improve the learning process mainly at the micro-level (courses and activities).  However, another of the key promises of Learning Analytics research is to create tools that could help educational institutions at the meso- and macro-level to gain a better insight of the inner workings of their programs, in order to tune or correct them. This work presents a set of simple techniques that applied to readily available historical academic data could provide such insights. The techniques described are real course difficulty estimation, course impact on the overall academic performance of students, curriculum coherence, dropout paths and load/performance graph. The usefulness of these techniques is validated through their application to real academic data from a Computer Science program. The results of the analysis are used to obtain recommendations for curriculum re-design.
AMMI and GGE biplot analysis of multi environment yield trial of soybean in North Western Himalayan state Uttarakhand of India
Authors: Bhartiya* Anuradha , Aditya J.P. , Singh Kamendra , . Pushpendra , Purwar J.P. , Agarwal Anjuli
Published: September 2016

The investigation was carried out to study Genotype × Environment (G×E) interaction for seed yield in 36 soybean genotypes including check PS1092 over 3 diverse environments represented by different altitudes in Uttarakhand. Grain yield performances of soybean genotypes were evaluated during Kharif 2013 season using a randomized complete block design. The AMMI analysis indicated that environment, genotypes and genotype by environment interactions had significantly affected seed yield and accounted for 9.76, 28.97 and 47.55% of the total variation, respectively. GGE biplot clearly displayed interrelationships between test locations as well as genotypes and facilitated visual comparisons based on Principal Component Analysis (PCA). The first two principal components PCI and PCII were used to create a two-dimensional GGE biplot that accounted for 45.68 and 38.88% variations respectively and based on discriminating and representative ability, E2 (Majhera) was most suitable location for selecting generally adapted genotypes. Soybean genotype C1 (PS1539) was identified as ideal genotype with high yield and low G×E interaction i.e. high stability.
Technological and extension yield gaps in Greengramin Pali district of Rajasthan, India
Authors: Meena M. L. , Singh Dheeraj
Published: September 2016

The technological gap between existing and recommended technologies of greengram crop was studied during 2012, 2013 and 2014. The study in total 40 frontline demonstrations was conducted on farmers’ fields in five adopted villages. The findings of the study revealed that improved technology recorded a mean yield of 982 kg/ha which was 35.5% higher than obtained with farmers’ practice (755 kg/ha). The study exhibited mean extension gap of 267 kg/ha, technology gap of 368 kg/ha with mean technology index of 27.3%. An additional investment of Rs. 1470 /ha coupled with recommended nutrient, water management, plant protection measures, scientific monitory and non-monetary factors resulted in additional mean returns of Rs.10970/ha. Higher mean net income of Rs. 46030/ha with a Benefit: Cost ratio of 4.3 was obtained with improved technologies in comparison to farmers’ practices (Rs. 38775/ha).The frontline demonstrations conducted on greengram at the farmers’ field revealed that the adoption of improved technologies significantly increased the yield as well as yield attributing traits of crop and also the net returns to the farmers.
Effect of tillage, mulching and weed management practices on the performance and economics of chickpea
Authors: Kumar* B.R. Manjith , Angadi1 S.S.
Published: September 2016

A field experiment was conducted to study the effect of tillage, mulching and weed management practices on growth, yield and uptake of nutrients by chickpea during rabi 2010 and 2011 at MARS, UAS Dharwad, Karnataka. Conventional tillage increased various growth, yield parameters and chickpea yield and also nutrient uptake and nitrogen use efficiency over minimum and zero tillage practices. Significantly higher gross return, net return and B:C ratio were recorded in conventional tillage as compared to minimum and zero tillage practices. Mulching practice showed higher growth, yield and yield parameters of chickpea and also nutrient uptake and economics over minimum and zero tillage practices. Significantly higher growth, chickpea yield and yield parameters, nutrient uptake, gross return, net return and B:C ratio were recorded in application of pendimethalin as compared to other weed management practices.
Artists and Multiple Job Holding—Breadwinning Work as Mediating Between Bohemian and Entrepreneurial Identities and Behavior
Authors: Lindström Sofia
Published: September 2016

Artists are known to manage low income and work insecurity by holding multiple jobs. Through an analysis of interview data, this study explores the narratives of 20 visual artists in Sweden regarding breadwinning work. Positive and negative experiences of such work are analyzed in relation to the artists’ work behavior and identity as either ‘bohemian’ or ‘entrepreneurial.’ Breadwinning work may be seen by artists as either enabling autonomy from the market or hindering the construction of a professional identity, depending on these behaviors/identities. However, conditions such as low wage, temporary contracts, and low control over work hours ultimately decides artist’s experiences of breadwinning work. This article adds to the existing knowledge on artistic labour markets by highlighting the role of multiple job holding in mediating between an understanding of the bohemian art for art’s sake artist role and the entrepreneurial role of the artist.
Malignant Transformation of a Giant Cell Tumor of Bone Treated with Denosumab
Authors: Park Andrew , Cipriano Cara A. , Hill Kirk , Kyriakos Michael , McDonald Douglas J.
Published: September 2016

Case:

Giant cell tumor (GCT) of bone was first described almost 200 years ago, but the optimal treatment continues to evolve. We present a patient with a pelvic GCT who was treated with embolization, 20 months of denosumab therapy, and resection. Histologically, the tumor consisted of degenerated GCT, bone, and fibrous tissue. After 7 months, the patient was found to have osteosarcoma at the site of the initial lesion as well as pulmonary metastases.

Conclusion:

The apparent malignant transformation of a GCT of bone treated initially with denosumab indicates that close follow-up is warranted.
An Intramedullary Osteolipoma of the Upper Thoracic Spinal Cord
Authors: Kojima Kota , Iwanami Akio , Mikami Shuji , Ishii Ken , Matsumoto Morio , Nakamura Masaya
Published: September 2016

Case:

We present a rare case of an intramedullary osteolipoma without any extramedullary connections or coexisting spinal dysraphism. A 48-year-old woman presented with back pain and pain around the lateral aspect of the left thigh. Magnetic resonance imaging (MRI) revealed a heterogeneous hyperintense and hypointense region on T1 and T2-weighted imaging. A cavernous hemangioma was suspected, and the patient was admitted for surgical resection. The histological diagnosis was an intramedullary osteolipoma.

Conclusion:

MRI with fat suppression and computed tomography are recommended for the diagnosis of an intramedullary osteolipoma, but a definitive diagnosis requires histological examination.
Respons Pertumbuhan Tanaman Jeruk Keprok Batu 55 pada Beberapa Interstock Melalui Metode Top Working
Authors: Sugiyatno Agus , Setyobudi Lilik , Maghfoer M D , Supriyanto Arry
Published: September 2016

Pengembangan jeruk keprok berwarna kuning dapat dilakukan dengan menanam benih baru atau menerapkan metode top working yaitu metode mengganti suatu varietas tanaman yang ada dengan varietas baru sesuai selera konsumen. Metode top working dapat dilakukan pada batang bawah tanaman atau pada batang atas tanaman yang berfungsi sebagai batang antara atau interstock. Tujuan penelitian ini ialah untuk mengetahui respons pertumbuhan tanaman jeruk keprok Batu 55 pada beberapa interstock melalui metode top working. Penelitian dilaksanakan di Kebun Percobaan Tlekung, Balai Penelitian Tanaman Jeruk dan Buah Subtropika (Balitjestro), Batu, Jawa Timur (950 m dpl.), mulai Bulan April sampai Oktober 2012. Penelitian menggunakan rancangan acak kelompok dengan 10 perlakuan yaitu kombinasi antara interstock (pamelo, jeruk manis, jeruk siam, jeruk purut), dan kontrol (batang bawah Japansche Citroen) pada metode top working cara okulasi dan sambung kulit. Penelitian diulang sembilan kali. Hasil penelitian menunjukkan bahwa perlakuan KB/P/JC-Ok (keprok Batu 55/interstock pamelo/Japansche Citroen-okulasi), KB/M/JC-SK (keprok Batu 55/interstock jeruk manis/Japansche Citroen-sambung kulit), dan KB/M/JC-Ok (keprok Batu 55/ interstock jeruk manis/Japansche Citroen-okulasi) menghasilkan persentase sambungan jadi 100%. Perlakuan KB/JC-Ok (keprok Batu 55/Japansche Citroen-okulasi) menghasilkan pecah tunas paling cepat, sedangkan perlakuan KB/S/JC-Ok (keprok Batu 55/ interstock jeruk siam/Japansche Citroen-okulasi) menghasilkan pertumbuhan terbaik pada pertambahan tinggi tunas dan jumlah daun. Kombinasi perlakuan interstock-top working mempunyai rasio C/N lebih tinggi jika dibandingkan dengan tanaman jeruk muda (pembanding). Hasil penelitian ini untuk memberikan rekomendasi kepada petani tentang penggunaan interstock melalui metode top working pada tanaman jeruk keprok Batu 55.
Pengaruh Benzilaminopurin dan Boron Terhadap Pembungaan, Viabilitas Serbuk Sari, Produksi, dan Mutu Benih Bawang Merah di Dataran Rendah
Authors: Rosliani Rini , Palupi Endah Retno , Hilman Yusdar
Published: September 2016

Biji botani atau TSS (true shallots seed) merupakan salah satu sumber benih bawang merah yang potensial untuk dikembangkan sebagai bahan perbanyakan. Selama ini produksi TSS dilakukan di dataran tinggi. Dataran rendah dengan suhu yang tinggi tidak sesuai untuk menghasilkan pembungaan, namun ada indikasi bahwa dataran rendah menghasilkan pembentukan dan mutu benih TSS yang lebih baik dibandingkan dataran tinggi. Penelitian dilakukan untuk memproduksi benih bawang merah (TSS) di dataran rendah melalui peningkatan pembungaan dan viabilitas serbuk sari menggunakan BAP dan boron. Penelitian dilakukan  di Kebun Percobaan Wera, Subang, Jawa Barat (ketinggian 100 m dpl.), dari Bulan Maret sampai dengan Juni 2012. Rancangan percobaan yang digunakan yaitu acak kelompok faktorial dengan tiga ulangan. Perlakuan terdiri atas dua faktor, yaitu aplikasi benzilaminopurin atau BAP (0, 50, 100, 150, dan 200 ppm) dan boron (0, 1, 2, 3, dan 4 kg/ha). Aplikasi BAP diberikan tiga kali pada umur 1, 3, dan 5 minggu setelah tanam (MST), dan boron pada umur 3, 5, dan 7 MST. Hasil penelitian menunjukkan bahwa pemberian BAP dapat meningkatkan pembungaan dan viabilitas serbuk sari bawang merah, tetapi tidak meningkatkan produksi dan mutu benih TSS di dataran rendah Subang. Aplikasi BAP konsentrasi 50 ppm yang diaplikasikan pada umur 1, 3, dan 5 MST cukup memadai untuk meningkatkan pembungaan bawang merah di dataran rendah Subang. Sementara boron tidak memperbaiki tingkat pembungaan maupun produksi dan mutu benih TSS. Boron 4 kg/ha hanya dapat memperbaiki viabilitas serbuk sari bawang merah. Hasil penelitian ini memberikan informasi bahwa ada peluang untuk memperbaiki tingkat pembungaan yang lebih tinggi di dataran rendah, sedangkan tantangannya ialah peningkatan pembentukan kapsul/buah dan biji TSS.
Pengaruh Ketinggian Tempat Terhadap Pembungaan, Produksi, dan Mutu Benih Botani Bawang Merah
Authors: Hilman Yusdar , Rosliani Rini , Palupi Endah Retno
Published: September 2016

Kendala produksi benih bawang merah (Allium cepa var. ascalonicum) asal biji atau TSS di dataran rendah adalah rendahnya persentase pembungaan dan pembentukan biji (seed-set.).Untuk meningkatkan pembentukan biji, bawang merah memerlukan suhu 17–19oC. Di Indonesia, suhu udara tersebut hanya terdapat di dataran tinggi>1.000 m dpl.. Percobaan dilaksanakan di Kebun Percobaan Balai Penelitian Tanaman Sayuran (Balitsa) Lembang (1.250 m dpl.) dan di Kebun Percobaan Paseh Subang (100 m dpl.) yang sekaligus merupakan perlakuan percobaan. Penelitian dimulai dari bulan Agustus 2011 sampai Agustus 2012. Tujuan penelitian adalah untuk mempelajari pembungaan, viabilitas serbuk sari, produksi, dan mutu benih TSS di dataran tinggi dan dataran rendah. Pengujian viabilitas serbuk sari serta mutu benih dilakukan di Laboratorium Benih Balitsa Lembang. Hasil penelitian menunjukkan bahwa tingkat pembungaan dan produksi biji di dataran tinggi lebih besar daripada di dataran rendah, sebaliknya mutu benih yang dihasilkan di dataran rendah lebih baik daripada di dataran tinggi. Implikasi penelitian ini adalah dataran tinggi sangat potensial untuk pengembangan produksi biji bawang merah, di mana biji bawang merah dapat menghasilkan umbi bibit yang jauh lebih baik daripada umbi bibit yang beredar di pasar.
Teknik Aplikasi Benzilaminopurin dan Pemeliharaan Jumlah Umbel Per Tanaman untuk Meningkatkan Produksi dan Mutu Benih Botani Bawang Merah (True Shallot Seed) di Dataran Tinggi
Authors: Rosliani Rini , Sinaga Risma , Hilman Yusdar , Hidayat Iteu Margaret
Published: September 2016

Pembungaan dan pembentukan biji merupakan kendala dalam produksi benih true shallot seed (TSS) di Indonesia. Aplikasi benzilaminopurin (BAP) dan boron dapat meningkatkan pembungaan, viabilitas serbuk sari maupun produksi, dan mutu benih TSS. Teknik aplikasi BAP yang efisien belum diketahui, sementara jumlah umbel dalam satu tanaman diduga dapat menyebabkan terjadinya persaingan dalam pembentukan kapsul dan biji. Tujuan penelitian yaitu untuk mendapatkan teknik pemberian BAP dan pemeliharaan jumlah umbel yang efisien dalam meningkatkan produksi dan mutu benih TSS di dataran tinggi. Penelitian dilaksanakan di dataran tinggi Lembang (1.250 m dpl.), pada bulan Maret sampai dengan September 2013 menggunakan rancangan acak kelompok faktorial dengan tiga ulangan. Faktor pertama yaitu aplikasi BAP 37,5 ppm melalui (1) teknik penyiraman BAP tiga kali, (2) kombinasi teknik aplikasi BAP dengan perendaman + penyiraman dua kali, dan (3) teknik perendaman umbi bibit sebelum tanam, sedangkan faktor kedua yaitu pemeliharaan jumlah umbel per tanaman dengan perlakuan (1) pemeliharaan semua umbel, (2) pemeliharaan tiga umbel pada bunga ke-1 sampai dengan ke-3, (3) pada bunga ke-2 sampai dengan ke-4, dan (4) pada bunga ke-3 sampai dengan ke-5. Hasil penelitian menunjukkan bahwa teknik aplikasi BAP melalui perendaman saja dan perendaman + penyiraman dua kali umur 1 dan 3 minggu setelah tanam (MST) menghasilkan produksi kapsul dan produksi TSS lebih efisien daripada teknik penyiraman tiga kali pada umur 1, 3, dan 5 MST. Teknik aplikasi BAP melalui perendaman + penyiraman dua kali umur 3 dan 5 MST 30% lebih efisien dan 60% lebih efektif dalam memproduksi TSS daripada teknik penyiraman tiga kali pada umur 1, 3, dan 5 MST. Namun daya berkecambah pada teknik perendaman + penyiraman lebih rendah daripada penyiraman tiga kali maupun perendaman saja. Pemeliharaan tiga umbel ke-1 sampai dengan ke-3 menghasilkan produksi dan mutu setara dengan pemeliharaan semua umbel. Implikasi penelitian ini adalah teknik produksi TSS yang efisien di dataran tinggi akan mudah dikembangkan oleh pengguna (petani/penangkar benih).
Repelensi Minyak Atsiri Tehadap Hama Gudang Bawang
Authors: Hasyim Ahsol , Setiawati Wiwin , Jayanti Hadis , Krestini E H
Published: September 2016

Minyak atsiri yang berasal dari tanaman adalah salah satu bahan yang dapat berfungsi seperti fumigan dan mempunyai prospek untuk digunakan dalam melindungi produk yang disimpan di gudang penyimpanan. Minyak atsiri harus mempunyai kemampuan untuk mengusir serangga hama agar serangga tidak masuk ke dalam umbi bawang merah yang disimpan. Penelitian bertujuan untuk mengetahui pengaruh minyak atsiri terhadap aktivitas biologi serangga dewasa dan larva hama gudang bawang Ephestia cautella. Penelitian dilaksanakan di Laboratorium Balai Penelitian Tanaman Sayuran, Lembang dari bulan Juni sampai dengan Desember 2012 pada temperatur 27± 2C dan kelembaban 75–80%. Penelitian dilaksanakan dalam empat tahapan kegiatan. Penelitian pertama untuk mengetahui repelensi minyak atsiri terhadap serangga dewasa E. cautella, penelitian kedua untuk mengetahui pengaruh minyak atsiri terhadap penghambatan peneluran imago betina E. cautella, penelitian ketiga untuk mengetahui repelensi larva E. cautella terhadap minyak atsiri, dan penelitian keempat untuk mengetahui pengaruh atsiri terhadap indeks nutrisi larva E. cautella instar-3. Rancangan percobaan yang digunakan ialah rancangan acak kelompok terdiri atas enam perlakuan dan diulang empat kali. Metode penelitian yang digunakan ialah metode pencelupan (dipping methods). Hasil pengamatan menunjukkan bahwa minyak eucalyptus memiliki persentase repelensi imago E. cautella tertinggi mencapai 46% pada 24 jam setelah aplikasi. Penghambatan peneluran E. cautella pada semua perlakuan minyak atsiri menunjukkan persentase lebih dari 75% dan tidak berbeda nyata tetapi minyak atsiri kayu manis memiliki nilai persentase penghambatan peneluran tertinggi mencapai 85,23%. Perlakuan minyak atsiri akar wangi pada pengamatan repelensi larva E. cautella menunjukkan persentase tertinggi (50%) dengan kelas repelensi 3. Pengaruh minyak atsiri jeruk purut terhadap indeks nutrisi larva E.cautella menunjukkan bahwa minyak atsiri ini dibandingkan dengan minyak atsiri lainnya, mampu menghambat penyerapan nutrisi larva sehingga dapat mengganggu pertumbuhan larva, dengan nilai laju pertumbuhan relatif (RGR) 0,11 mg/mg/hari. Manfaat penelitian ini adalah dapat menambah informasi tentang kemampuan minyak atsiri dari bahan eucalyptus, serai wangi, akar wangi, kayu manis, dan jeruk purut sebagai sumber insektisida alami yang dapat digunakan secara aman, murah, dan ramah lingkungan dalam upaya pengendalian hama gudang bawang merah E. cautella. 