bluuebunny/crossref_metadata_2025 huggingface dataset:
Inhibition of Hepatitis C virus (HCV) Core protein- induced Cell Growth by Non-structural Protein 4A (NS4A) is Mediated by Mitochondrial Dysregulation
Authors: Selimović Denis , Hassan Mohamed
Published: May 2018

Hepatitis C virus (HCV) is a significant health problem facing the world. More than 170 million people are infected with HCV worldwide. HCV encodes a large polyprotein precursor that is processed into at least 10 distinct products including structural (core, E1 and E2) and non-structural (NS2, NS3, NS4A, NS4B, NS5A and NS5B). Besides its importance in virus replication, NS4A functions as a cofactor for NS3 and contributes to viral pathogenesis by influencing cellular functions. Here, we investigated the effect of NS4A protein on the growth rate induced by core protein in liver cells. Using our established tetracycline inducible system, we demonstrated the ability of NS4A protein to inhibit core protein-induced cell growth in Hepatoma cell line, HepG2. Induction of both core and NS4A proteins in HepG2- core/NS4A transfectants inhibited core-induced growth advantage in HepG2-core transfectants and blocked NS4A protein-induced cell growth inhibition in HepG2-NS4A transfectants. Using both immune fluorescence staining and Western blot analysis, we confirmed the localization of NS4A protein to the mitochondria in HepG2-NS4A transfectants expressing NS4A protein. Data obtained from flow cytometry analysis, using JC-1 demonstrated the loss of mitochondrial membrane potential (ΔΨ^ by the expression of NS4A protein in HepG2-NS4A transfectants, but not by the expression of core protein in HepG2-core transfectants. Whereas, the induction of the expression of both core and NS4A proteins in HepG2-core/NS4A transfectants blocked NS4A-induced loss of ΔΨm in HepG2 cells. Taken together, our data suggest an important role for mitochondria in the modulation HCV NS4A-induced inhibition of HCV core-mediated cell growth.
Postoperative Glycaemia in Patients Following the CABG Surgery
Authors: Kacila Mirsad , Tahirović Elnur , Lazović Zina
Published: May 2018

In this study we analyzed patients glucose levels taken before and after coronary artery bypass surgery. The data are taken from University of Sarajevo Clinics Centre-medical documentation of Heart Center from January 1st, 2007 to October 31st, 2007. Therefore, the entire study is done retrospectively. The patients considered in this analysis were divided into three groups. The patients in the first group were treated with peroral antidiabetics. The second group included patients treated with insulin while the third group consisted of patients without diabetes and acted as control group. All the patients had increased BMI. In the first two groups glucose levels were elevated before the surgery. Data analysis showed that three patients from the first group changed from peroral antidiabetics to insulin during postoperative period, and they were dismissed from hospital with this therapy. In the control group, peroral antidiabetis were introduced in four patients. The study results show that all the three groups have had high glycaemia on the first postoperative day. This may be caused by a number of reasons: inadequate pre-operative antidiabetic therapy, the impact of stress during surgery, inadequate pre-operative treatment of glycaemia or avoidance of the proscribed therapy by patients themselves. Stress during operation and administration of several medications after operation may also cause increased insulin resistance and distort glycaemia control.
Paroxetine in the Treatment of Post Traumatic Stress Disorder: Our Experiences
Authors: Kučukalić Abdulah , Bravo-Mehmedbašić Alma , Džubur-Kulenović Alma
Published: May 2018

Posttraumatic stress disorder can develop after individual’s exposure or witnessing of life threatening events. It is characterized by three clusters of symptoms. The course of PTSD is often chronic and impedes individual’s functioning. Studies of PTSD treatment with paroxetine provide evidence for its efficacy in reducing symptoms and its favorable profile of side-effects. The objective of this work was to determine the efficacy of paroxetine in the treatment of PTSD.The sample consisted of 30 subjects with chronic PTSD. All subjects received treatment with paroxetine in therapeutic dose range for six months. Subjects were assessed prior to therapy and following six months of treatment with paroxetine with the use of following instruments: SCL 90-R, Mississippi Questionnaire, and CGI.The results indicate statistically significant reduction on all subscales of SCL 90-R following six months of treatment, P<0,05. The difference between two assessments with Mississippi Questionnaire was statistically significant, P< 0,05. PTSD rate in our sample was reduced from 100% before treatment to 64% after treatment. Paroxetine was administered in daily dose of 20 mg in 88% of the subjects, and 40 mg in the remaining 12%. Unwanted effects were registered in 16,7% of the subjects and they were mild. Objective improvement was registered in 84% of the sample, and subjective improvement was registered in 80%. Reduction of relapse symptoms was registered in 24% of the subjects.Paroxetine proved to be efficient and safe in treatment of symptoms of PTSD in this study.
Electroporation of Aurantiochytrium limacinum (ATCC MYA-1381) v1
Authors: Rius Mariana
Published: May 2018

Electroporation strategy used in the transformation of Aurantiochytriumlimacinum(ATCC MYA-1381; Stramenopile/ Heterokont, Thraustochytrid).This protocol is following the guidance of Ono et al. 2011. US Patent # 7,888,123 B2.
56-os amerikai magyarok óhazaképe és a helyvesztés lépései
Authors: Bögre Zsuzsanna
Published: May 2018

A tanulmány a georgiai magyar „church” 56-os tagjainak élettörténeti elemzését mutatja be. Az élettörténetekből megismerhetővé vált, hogy milyen óhazaképet őriznek azok a személyek, akik egykor úgy érezték, el kell hagyniuk hazájukat. Keveset tudunk még arról, s ezt a hiánypótlást célozta meg a kutatás, hogy hogyan gondolkodnak az óhazáról egy magyar diaszpóra tagjaként az amerikai magyarok, s hogyan küzdöttek meg az óhazától való elszakadással. A kutatás módszereként az oral history élettörténetek feldolgozását alkalmaztam. Az élettörténetekből négy meghatározó időpontot választottam ki, amelyekben az óhazával kapcsolatos történeteket elemeztem. Az óhazáról való beszédmód túlmutatott a szülőföldhöz való ragaszkodáson vagy annak elutasításán. Az óhazáról szóló vélemények történetekbe ágyazva fejezik ki az elszakadás lépéseit, amelyek szükségesek az új helykötődések kialakulásához. Láthatóan azok az amerikai magyarok, akik nem tervezik hazaköltözésüket, távolságtartó módon vélekednek szülőföldjükről. Az óhaza demisztifikálása az új hazához való kötődések kialakulásában nélkülözhetetlennek bizonyult.

Az óhazával kapcsolatos helyvesztés feldolgozásában nyújt segítséget a diaszpóra mint közösség. A sorstársakkal a diskurzusok során megosztott tapasztalatokból kialakult egyfajta kollektív vélekedés és emlékezés, és a kollektív szintre emelkedett emlékek megjelentek az egyének publikus élettörténeteiben.
Notifying Neglect: Child Protection as an Application of Bureaucratic Power against Marginalized Parents
Authors: Rice James , Sigurjónsdóttir Hanna Björg
Published: May 2018

The goal of this contribution is to bring to light some systemic applications of organizational power that occur within the child protection system in Iceland. The specific focus is on the ways in which notifications are made to the child protection system concerning allegations of parental neglect on the part of parents with disabilities and a criticism of some specific mechanisms by which these notifications may contribute to unjust custody deprivation proceedings. We suggest that accusations of bias or prejudice within the child protection system need to be grounded upon the demonstration of concrete mechanisms which illustrate this bias in practice. In this contribution, we chose to focus on the power of notifications and to explore the institutional logic and practices that can result in unjust custody deprivation decisions. A critical analysis of the knowledge production of custody deprivation is required to fully understand these process as systematic applications of power and to recognize the problematic nature of child protection work that weighs heavily against marginalized parents.
Rectal resection for Schnitzler’s metastasis in a patient presenting with severe rectal stenosis: case report and review of the literature
Authors: DOĞAN Semra , Demirbaş Sezai , Samadov Elgun , Öziş Salih Erpulat , Uslu Hatim Yahya
Published: May 2018

Rectal metastasis resulting from the hematogenous spread of
gastric cancer (Schnitzler’s disease) is rarely seen. We report a case of 53-year-old female with rectal metastasis from gastic cancer who presented with
abdominal pain, tenesmus, and severe constipation. Digital rectal examination
revealed a severe stenosis 5-6 cm from the dentate line. Sigmoidoscopy showed a
narrowed lumen at 5 cm up from the dentate line. The evident radiologic finding
was circumferential stenosis of the rectum located at the same level. Very low
anterior resection and total mesorectal excision with coloanal anastomosis in
addition to protective ileostomy were performed. Pathological examination
revealed metastatic adenocarcinoma (Schnitzler’s metastasis). The patient was
discharged on the 9th postoperative day with no adverse events. It
should be kept in mind that rectal stenosis could be metastasis from gastric
carcinoma if consistent with the patient’s history.
Comparison of splint and conventional cast for treating wrist torus fractures in children (systematic review)
Authors: Alsawadi Abdulrahman , Abbas Mustafa
Published: May 2018

Wrist torus fractures in children are common. Although it might be simple and straightforward, the management of these injuries remains controversial and depends on the personal experience and preference of the treating physician. The consensus agreement, however, is that these fractures are inherently stable. Some authors argue that splints should replace the traditional method of cast immobilisation. The splints are viewed as easier to use, more convenient and do not require follow up clinics for removal. It has also been argued that splints are more cost-effective than casts. The aim of this systematic review is to examine the effectiveness and cost-effectiveness of removable splints versus casts in the treatment of torus wrist fractures of children in the current literature. This review followed the Systematic reviews and Meta-Analyses (PRISMA) statement for reporting. Comprehensive electronic database search and handsearch were conducted. Studies were considered for review if they were randomised or quasi-randomised controlled trial and compared removable splints and casts for treating torus fractures of distal radius and/or ulna in children. Four papers identified by two reviewers as potentially eligible for inclusion were appraised and two identified for inclusion were further assessed for any risk of bias. Data were narratively presented and discussed as meta-analysis would not have been possible for the identified studies. The limited available data favours the use of splint as a clinically effective and more cost-effective method of immobilisation. However, the findings of the systematic review are limited by the quality of the identified studies. It has been viewed that explanation to patients and parents and involving them in the decision, plus implementation of safety protocol to avoid under-treatment of misdiagnosed fractures and allow easy access of patients to the clinic, is an alternative way to provide safe, convenient and cost-effective treatment. 
Framing the preoperative assessment of the oncogreriatric patient. The surgeon’s point of view
Authors: Papagoras Dimitris , Kanara Maria , Ntouvli Stella
Published: May 2018

Elderly cancer patients represent a steadily rising population constituting a daily problem for any physician, who is confronted not only with medical questions but also with ethical and social dilemmas. In addition oncogeriatric patients are underrepresented or excluded from trials especially in surgery which results in a gap in practical and evidence based knowledge regarding their preoperative evaluation and treatment. Therefore the authors outline the framework a decision making process for a meaning – and success- full treatment plan has to rely on.
Observation on the Curative Effect of Madopar Combined with Pramipexole in the Treatment of Parkinson’s Diseases
Authors: Yu Yongting , Yang Min , Chen Ruihui , Chen Hongbing
Published: May 2018

Parkinson’s disease is a common neurological degenerative disease in the elderly. The clinical manifestations are static tremor, increased muscle tone, slow movement, abnormal posture gait, and severe symptoms of loss of self-care. Parkinson’s disease has become a burden to not only patient, but also to his family and to the society. Normal human brain neurotransmitter dopamine and acetylcholine are in a balanced state, the two antagonism can maintain normal body function. The pathological changes of patients with Parkinson’s disease is degeneration and apoptosis of dopaminergic neurons in striatum, resulting in a significant reduction in dopamine levels, and thus lead to an imbalance in the effects of dopamine and acetylcholine, and a decrease in dopamine resistance to acetylcholine Parkinson’s disease symptoms. As such, this article will focus on the analysis of the Madopar and pramipexole in the treatment of Parkinson’s disease symptoms.
Ambiente empresarial, posicionamento estratégico e modelo delta: um estudo de caso no segmento de transmissão de energia elétrica
Authors: Cruz Plínio Fernando da , Afonso Bruno Pellizzaro Dias , Maccari Emerson Antônio , Afonso Tarcisio
Published: May 2018

O sistema elétrico brasileiro, nascido por investimentos governamentais, manteve sua origem pública e consagrou grandes empresas estatais de energia. Após a implantação da Agência Nacional de Energia Elétrica (ANEEL), em 1998, acentuou a alternância do modelo estatal para o privado. O presente estudo buscou analisar a estratégia de uma empresa multinacional, pioneira no setor de transmissão de energia elétrica, para lidar com as mudanças na regulação da indústria e aumento de competição. Foi utilizada a metodologia qualitativa de análise, tendo como referência teórica o Modelo Delta de posicionamento estratégico. Os dados foram coletados por meio de entrevistas orientadas por questionário semiestruturado, envolvendo o corpo de diretores e gerentes da empresa, e foram interpretados utilizando a análise de conteúdo. Os resultados da pesquisa demonstraram que as estratégias adotadas pela empresa, após as mudanças de ambiente, podem ser explicadas à luz do modelo Delta de Hax & Wilde II. Concluiu-se que as estratégias adotadas pela empresa foram eficientes para mantê-la na liderança do mercado e que o Modelo Delta constituiu um importante método para a análise de posicionamento estratégico.
Investment in the stock market decisions: analysis of potential investors trust
Authors: Cunha Gustavo Rodrigues , De Lima Leonardo Andrade Motta
Published: May 2018

The number of Individual Investors Stock Market Physics has remained virtually stable since the 2008 economic crisis, remaining in a level considerably low when compared to other countries....
Editorial
Authors: Lara José Edson
Published: May 2018

EDITORIAL Estimado lector,Es con mucha satisfacción y honor que le ofrecemos este volumen 17, n ° 2 de la Revista Gestión & Tecnología. Por este periódico le ofrecemos artículos y relatos técnicos procedentes de las más diversas áreas en el vasto campo de la gestión y de la tecnología, y, especialmente, de la conjugación entre estos dos importantes segmentos del conocimiento científico y de acciones ejecutivas. Además, son contribuciones a la literatura procedentes de diversos autores vinculados a variadas instituciones de enseñanza e investigación en Brasil. Como siempre, estamos haciendo esfuerzos para la captación de artículos procedentes de otros países, como forma de proporcionar la integración de ideas, programas de investigación y publicaciones, así como de culturas científicas específicas.
Fatores determinantes para o desempenho em inovação das indústrias optantes lucro real em Santa Catarina
Authors: Zimmer Paloma , Iata Cristiane Mitsuê , Souza João Artur De , Cunha Cristiano José Castro de Almeida
Published: May 2018

Este artigo tem como objetivo apresentar as principais práticas e entraves para a inovação, e relacioná-los com o desempenho obtido em inovação em um grupo de 100 empresas. Para isso, utilizou-se como estratégia de pesquisa um survey, e para a análise dos dados estatística bi e multivariada. Esta pesquisa se caracteriza como descritiva, e de abordagem quantitativa. Os resultados do estudo comprovam que a performance em inovação, é resultado das práticas adotadas pela empresa, que vão desde a busca por novas matérias primas e processos produtivos, até o relacionamento de cooperação com fornecedores e concorrentes. Todas essas práticas tornam-se mais fluídas e efetivas para a organização, quando a mesma possui uma área formalizada para cuidar dos assuntos relacionados à Pesquisa, Desenvolvimento e Inovação – PD&I.
Governança de tecnologia da informação para reduzir problemas de agência no nível operacional
Authors: Coser Tiago
Published: May 2018

O objetivo deste estudo foi analisar como a Governança de Tecnologia da Informação (GTI) contribui para reduzir problemas de agência. A relação de agência foi delimitada entre diretores (principal) e gerentes (agente) das áreas Administrativa e Comercial. Trata-se de uma pesquisa descritiva, com abordagem qualitativa, desenvolvida por meio de um estudo de caso único em uma indústria sediada no estado do Rio Grande do Sul. Os principais resultados indicam que os problemas de agência não se limitam a informações e ações ocultas no ambiente pesquisado, mas, também, se devem a fragilidades nos recursos e fluxos de informações que suportam os processos de delegação e monitoramento de atividades. As principais contribuições da GTI para reduzir o problema de agência associam-se, prioritariamente, ao alinhamento entre a TI e os objetivos do negócio, nos processos de planejamento, construção, entrega e monitoramento de serviços de TI. Estas visando padronizar processos de negócio e reduzir a dependência humana nas etapas dos mesmos.
Editorial
Authors: Lara José Edson
Published: May 2018

Prezado Leitor, Conforme Platão (Fedón), “parece-me, pois, que se há algo belo à margem do belo em si, não será belo por nenhum outro motivo, salvo porque participa daquela beleza”. Assim, a beleza da produção científica se complementa na integridade e na integralidade da publicação científica. A identidade da produção se reflete na imagem da publicação. Entretanto, a própria publicação é dotada de identidade própria e esta reflete em sua imagem, no contexto da densidade epistemológica, teórica, morfológica, tecnológica e métrica das abordagens, manifestada na estética específica de um texto científico. Assim, o texto deve ser dotado de densidade científica e técnica, mas expressar uma estética que releve a beleza do mundo da ciência.
Impacto das tecnologias de plantio no fluxo de caixa do produtor canavieiro
Authors: Farinelli Juliana Borba de Moraes , Santos David Ferreira Lopes
Published: May 2018

As mudanças tecnológicas na produção canavieira, a fim de suprir exigências ambientais e sociais, trouxeram ao produtor rural um contexto de quedas de produtividades e no ciclo produtivo da cultura, o que aliado às oscilações do setor sucroenergético, demandam tanto do desenvolvimento de novas tecnologias produtivas como de instrumentos que auxiliem o produtor rural na tomada de decisão quanto ao emprego destas. Neste sentindo, o presente relato objetiva analisar o impacto das novas tecnologias de plantio de cana-de-açúcar sobre o fluxo de caixa de uma propriedade rural, situada no município de Jaboticabal/SP. Verificou-se, que as duas novas tecnologias de plantio analisadas apesar de proporcionarem um incremento na produtividade, somente uma apresenta resultado positivo em relação às demais modalidades de plantio. Porém, infere-se que as novas tecnologias de plantio não dão capazes de viabilizar o cultivo da cana-de-açúcar para pequenos e médios produtores da região.
Governança colaborativa para pesquisa em saúde: uma análise do desenho do Programa Pesquisa para o SUS
Authors: Pessoa Rafael Marques , Muniz Reynaldo Maia , Ckagnazaroff Ivan Beck
Published: May 2018

O Estado é um agente fundamental no direcionamento dos rumos da inovação por meio do financiamento e da execução direta de pesquisa científica, particularmente no setor da saúde. A implementação de políticas públicas de ciência, tecnologia e inovação possui riscos associados à própria natureza do processo inovativo, os quais são ampliados pela complexidade do ambiente institucional do Sistema Único de Saúde (SUS), que conta com uma diversidade de atores (governamentais e não-governamentais) e respectivos interesses, muitos deles atuando em âmbito regional. A colaboração entre tais atores torna-se, portanto, elemento chave para o alcance dos resultados de uma política pública que visa à descentralização e ao aproveitamento regional dos resultados da pesquisa em saúde. Partindo dessas asserções, a presente pesquisa objetiva analisar a formulação do Programa Pesquisa para o SUS: Gestão Compartilhada em Saúde (PPSUS) por meio da identificação dos elementos que compõem o desenho de sua governança e relacioná-los aos fatores condicionantes de resultado presentes no modelo teórico de governança colaborativa utilizado. Conclui-se que o desenho da governança do PPSUS contempla diversos elementos apontados pela literatura de governança colaborativa como boas práticas visando ao alcance de resultados, não obstante é preciso avançar na avaliação de sua implementação e de seus resultados em caráter regional.
Pengembangan Perangkat Pembelajaran Fisika Berorientasi Kemampuan Berpikir Kreatif Pada Pokok Bahasan Zat Dan Wujudnya Di SMP Negeri 15 Banjarmasin
Authors: Mentari Indah , Zainuddin Zainuddin , Misbah Misbah
Published: May 2018

Perangkat pembelajaran yang digunakan di sekolah selama ini dianggap belum mampu melatihkan kemampuan berpikir kreatif siswa. Oleh karena itu, dilakukan pengembangan perangkat pembelajaran yang memiliki tujuan khusus: (1) Mendeskripsikan validitas perangkat pembelajaran, (2) Mendeskrpsikan kepraktisan perangkat pembelajaran ditinjau dari keterlaksanaan RPP, dan (3) Mendeskripsikan efektivitas perangkat pembelajaran ditinjau dari hasil belajar. Penelitian ini merupakan penelitian pengembangan menggunakan model ADDIE. Perangkat yang dikembangkan berupa RPP, LKS, THB, dan Materi ajar. Teknik analisis data berupa validasi perangkat pembelajaran, pengamatan keterlaksanaan RPP, dab tes hasil belajar. Hasil penelitian menunjukkan: (1) Perangkat pembelajaran dinyatakan valid dengan ketegori sangat baik, (2) Kepraktisan perangkat pembelajaran terlaksana sangat baik, dan (3) Efektivitas perangkat pembelajaran termasuk pada kategori efektif/sedang. Disimpulkan bahwa perangkat pembelajaran berorientasi keterampilan berpikir kreatif yang dikembangkan layak digunakan dalam pembelajaran.
Pengembangan Perangkat Pembelajaran Berorientasi Kecerdasan Logis-Matematis Pada Pokok Bahasan Impuls Dan Momentum Dengan Menggunakan Model Direct Instruction Di SMA Muhammadiyah 1 Banjarmasin
Authors: Selvizia Nina , Zainuddin Zainuddin , M. Abdul Salam
Published: May 2018

Perangkat pembelajaran yang digunakan dalam proses pembelajaran di sekolah dinilai masih kurang layak. Hal ini berpengaruh kepada rendahnya kecerdasan logis matematis dan hasil belajar kognitif siswa. Untuk itu dilakukan pengembangan perangkat pembelajaran dengan menggunakan model direct instruction yang memiliki tujuan khusus: (1) Mendeskripsikan validitas perangkat pembelajaran, (2) Mendeskripsikan kepraktisan perangkat pembelajaran ditinjau dari keterlaksanaan RPP, dan (3) Mendeskripsikan efektivitas perangkat pembelajaran ditinjau dari hasil belajar kognitif siswa. Penelitian ini merupakan penelitian pengembangan yang mengacu pada model pengembangan Dick and Carey. Instrumen yang dikembangkan berupa RPP, LKS, THB dan Materi ajar. Teknik analisis data berupa validasi perangkat pembelajaran, pengamatan keterlaksanaan RPP dan tes hasil belajar. Hasil penelitian menunjukkan: (1) Perangkat pembelajaran yang dikembangkan dinyatakan valid dengan katagori sangat baik (2) Kepraktisan perangkat pembelajaran dinilai terlaksana sangat baik, dan (3) Efektivitas perangkat pembelajaran berkategori tinggi. Diperoleh simpulan bahwa perangkat pembelajaran menggunakan model direct instruction berorientasi kecerdasan logis matematis yang dikembangkan layak digunakan dalam pembelajaran.
Meningkatkan Pemahaman Konsep Siswa Kelas XI IPA 3 MAN 3 Banjarmasin Melalui Pengajaran Langsung Berbantuan Media Virtual
Authors: Hadijah Siti , Jamal Muhammad Arifuddin , M. Abdul Salam
Published: May 2018

Pemahaman konsep siswa yang rendah berakibat pada hasil belajar yang diperoleh juga rendah. Oleh karena itu dilakukan suatu penelitian untuk meningkatkan pemahaman konsep siswa melalui pengajaran langsung berbantuan media virtual dengan tujuan  khusus sebagai berikut: (1) mendeskripsikan keterlaksanaan RPP, (2) medeskripsikan aktivitas siswa selama pembelajaran, dan (3) mendeskripsikan pemahaman konsep siswa yang ditinjau dari tes hasil belajar siswa mencakup kategori menginterpretasi, memberi contoh, membandingkan, dan menjelaskan. Penelitian ini merupakan penelitian PTK model Hopkins. Subyek penelitian adalah siswa kelas XI IPA 3 MAN 3 Banjarmasin. Data diperoleh melalui lembar observasi keterlaksanaan RPP, lembar observasi aktivitas siswa, dan hasil tes belajar pemahaman konsep siswa. Teknik analisis data yang digunakan bersifat deskriptif. Hasil penelitian menunjukkan, (1) keterlaksanaan RPP berkategori sangat baik, (2) aktivitas siswa berkategori baik, (3) pemahaman konsep siswa pada siklus I berkategori tidak tuntas karena tidak mencapai ketuntasan klasikal yaitu sebesar 61.29% dan pada siklus II berkategori tuntas karena mencapai ketuntasan klasikal yaitu sebesar 80.64%.
Meningkatkan Hasil Belajar Melalui Model Pengajaran Langsung Dengan Metode Problem Solving Pada Pembelajaran Fisika Di Kelas XII IPA 1 SMAN 10 Banjarmasin
Authors: Orrahmah Annisa , An'nur Syubhan , M. Abdul Salam
Published: May 2018

Hasil belajar siswa masih rendah dikarenakan pembelajaran masih bersifat konvensional dengan metode ceramah dan kurang menekankan pemecahan masalah yang sistematis. Oleh karena itu dilakukan penelitian tentang meningkatkan hasil belajar siswa melalui model pengajaran langsung dengan metode problem solving. Penelitian ini bertujuan untuk mendeskripsikan: (1) keterlaksanaan RPP, (2) keterampilan prosedural, (3) hasil belajar. Penelitian ini merupakan penelitian PTK model Suharsimi Arikunto. Subyek penelitian adalah siswa kelas XII IPA 1 SMAN 10 Banjarmasin. Teknik pengumpulan data menggunakan pengamatan dan tes. Teknik analisis data menggunakan deskriptif kuntitatif dan kualitatif. Hasil penelitian menujukkan bahwa (1) Keterlaksanaan RPP siklus I diperoleh skor 3,52 dan siklus II diperoleh skor 3,84 dan berada pada kategori sangat baik, (2) keterampilan prosedural siswa mengalami peningkatan dari siklus I sebesar 50,00% (tidak tuntas) menjadi 93,33% (tuntas) pada siklus II, (3) hasil belajar siswa mengalami peningkatan sebesar 76,67% (tidak tuntas) pada siklus I menjadi 86,67% (tuntas) pada siklus II. Jadi dapat disimpulkan bahwa keterlaksanaan RPP berkategori sangat baik, keterampilan prosedural mencapai ketuntasan klasikal dan hasil belajar mencapai ketutasan klasikal.
Pengembangan Bahan Ajar Melalui Model Pembelajaran REACT Pada Materi Elastisitas
Authors: Purnamasari Pratiwi , Annur Syubhan , M. Abdul Salam
Published: May 2018

Bahan ajar yang digunakan di SMA Negeri 2 Banjarmasin selama ini masih kurang dalam mengaitkan materi yang dipelajari dengan konsep kehidupan sehari-hari. Diperlukan bahan ajar yang dapat menuntun siswa untuk menemukan dan menerapkan konsep dalam kehidupan sehari-hari, dan melatih siswa untuk aktif berpikir dan bertindak secara fisik. Oleh karena itu, dilakukan penelitian pengembangan bahan ajar fisika dengan model REACT pada materi elastisitas yang layak digunakan. Secara khusus penelitian ini bertujuan untuk mendeskripsikan: (1) validitas bahan ajar materi elastisitas yang dikembangkan, (2) kepraktisan bahan ajar materi elastisitas yang dikembangkan, (3) keefektivan bahan ajar materi elastisitas yang dikembangkan. Penelitian ini mengacu pada model pengembangan menurut Dick and Carey. Data yang diperoleh melalui lembar validasi bahan ajar, lembar pengamatan RPP, dan data hasil belajar siswa. Hasil pengembangan menunjukkan bahwa: (1) bahan ajar yang dikembangkan dinyatakan valid dengan kategori sangat tinggi yang divalidasi oleh dua validator, (2) bahan ajar yang dikembangkan dinyatakan praktis dilihat dari keterlaksanaan RPP dengan kategori sangat baik, (3) bahan ajar yang dikembangkan dinyatakan efektif dilihat dari gain score yang berada dalam kategori tinggi. Diperoleh simpulan bahwa bahan ajar pada pokok bahasan elastisitas melalui model pembelajaran REACT dinyatakan layak untuk digunakan, karena memenuhi kriteria valid, praktis, dan efektif.
Pengembangan Perangkat Pembelajaran IPA Fisika Berorientasi Keterampilan Berkomunikasi Menggunakan Model Pembelajaran Diskusi Kelas Di SMP Negeri 13 Banjarmasin
Authors: Mayangsari Pipit Puspita , Zainuddin Zainuddin , Mahardika Andi Ichsan
Published: May 2018

Perangkat pembelajaran IPA fisika yang digunakan di sekolah selama ini dianggap belum memfasilitasi siswa untuk terampil dalam berkomunikasi. Oleh karena itu, dilakukan pengembangan perangkat pembelajaran berorientasi keterampilan berkomunikasi dengan model pembelajaran diskusi kelas yang memiliki tujuan khusus: (1) Mendeskripsikan validitas perangkat pembelajaran, (2) Mendeskripsikan kepraktisan perangkat pembelajaran ditinjau dari keterlaksanaan RPP, (3) Mendeskripsikan efektivitas perangkat pembelajaran ditinjau dari hasil belajar kognitif siswa, dan (4) mendeskripsikan pencapaian keterampilan berkomunikasi. Penelitian ini merupakan penelitian pengembangan menggunakan model pengembangan ADDIE. Perangkat yang dikembangkan berupa RPP, LKS, THB dan Materi ajar. Teknik analisis data berupa validasi perangkat pembelajaran, pengamatan keterlaksanaan RPP, tes hasil belajar, dan pengamatan keterampilan berkomunikasi. Hasil penelitian menunjukkan: (1) Perangkat pembelajaran dinyatakan valid dengan katagori sangat baik (2) Kepraktisan perangkat pembelajaran terlaksana sangat baik (3) Efektivitas perangkat pembelajaran termasuk pada kategori sedang, dan (4) pencapaian keterampilan berkomunikasi dalam kategori baik. Disimpulkan bahwa perangkat pembelajaran IPA fisika berorientasi keterampilan berkomunikasi dengan model pembelajaran diskusi kelas yang dikembangkan layak digunakan dalam pembelajaran.
Pengembangan Modul Suhu dan Kalor Menggunakan Model Pembelajaran Kooperatif Tipe Somatic, Auditory, Visual, and Intellegent untuk Siswa Kelas X SMA Negeri 7 Banjarmasin
Authors: Rahmayanti Putri Riski , Wati Mustika , Mastuang Mastuang
Published: May 2018

Belum adanya modul suhu dan kalor, serta kurangnya minat belajar mandiri siswa di SMAN 7 Banjarmasin. Sehingga peneliti melakukan penelitian pengembangan modul suhu dan kalor. Pengembangan modul ini menggunakan model pembelajaran kooperatif tipe Somatic, Auditory, Visual, and Intellegent (SAVI) untuk siswa kelas X. Penelitian ini bertujuan mendeskripsikan: (1) validitas modul, (2) kepraktisan modul, dan (3) efektivitas modul suhu dan kalor yang dikembangkan. Penelitian ini mengacu pada model pengembangan desain ADDIE. Instrumen pengambilan data melalui lembar validasi modul, lembar keterlaksanaan RPP, dan tes hasil belajar siswa. Hasil penelitian menunjukkan bahwa: (1) validitas modul dikembangkan berkategori sangat baik, (2) kepraktisan modul dilihat dari keterlaksanaan RPP berkategori praktis, dan (3) efektivitas modul berkategori efektif. Kesimpulannya adalah bahwa modul suhu dan kalor menggunakan model pembelajaran kooperatif tipe SAVI ini layak digunakan dalam pembelajaran.
Pengembangan Perangkat Pembelajaran Berorientasi Lingkungan Sekitar Bantaran Sungai Barito Untuk Melatihkan Keterampilan Proses Sains
Authors: Ihsan Imam Nor , Jamal Muhammad Arifuddin , M. Abdul Salam
Published: May 2018

Pada proses perangkat pembelajaran  di sekolah dinilai masih kurang layak. Hal ini berimplikasi pada keterampilan proses sains dan hasil belajar kognitif siswa yang rendah. Untuk itu dilakukan pengembangan perangkat pembelajaran  menggunakan model inkuiri terbimbing yang memiliki tujuan khusus: (1) mendeskripsikan validitas perangkat pembelajaran, (2) mendeskripsikan kepraktisan perangkat pembelajaran yang ditinjau dari keterlaksanaan RPP, (3) Mendeskripsikan efektivitas perangkat pembelajaran yang ditinjau dari hasil belajar kognitif siswa, dan (4) mendeskripsikan pencapaian keterampilan  proses sains siswa. Pada penelitian ini  model yang digunakan model Dick and Carey. Instrumen yang dikembangkan berupa RPP, LKS, THB dan Materi ajar. Teknik pengumpulan data berupa validasi perangkat pembelajaran, pengamatan keterlaksanaan RPP, pengamatan KPS siswa, dan tes hasil belajar.  Teknik analisis data berupa deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan: (1) validitas perangkat pembelajaran berkategori valid, (2) kepraktisan perangkat pembelajaran dinilai terlaksana sangat baik, (3) efektifitas perangkat pembelajaran dinilai efektif, dan (4) pencapaian keterampilan proses sains siswa dinilai sangat baik. Diperoleh simpulan bahwa perangkat pembelajaran menggunakan model inkuiri terbimbing yang dikembangkan layak digunakan dalam pembelajaran. Learning device used in the learning process in schools is still considered less worthy. This has implications for science process skills and cognitive learning outcomes of students is low. To that made the development of the learning device by using the model of guided inquiry which has specific objectives: (1) describe the validity of the study, (2) describe the practicality of the device learning in terms of enforceability of RPP, (3) Describe the effectiveness of the learning in terms of the cognitive learning students, and (4) describe the achievement of science process skills of students. This research is a development which refers to the development model of Dick and Carey. The instrument was developed in the form of lesson plans, worksheets, THB and teaching materials. Technique data collecting device validation study, observation keterlaksanaan RPP, observations KPS students, and the achievement test. Data analysis techniques in the form of qualitative and quantitative descriptive. The results showed: (1) the validity of the learning device category is valid, (2) the practicality of the learning device rated executed very well, (3) the effectiveness of the learning device is considered effective, and (4) the achievement of science process skills of students rated as excellent. Be concluded that the device is guided inquiry learning model developed eligible for use in learning.
Pengembangan Media Pembelajaran Menggunakan Slide Presentasi 3 Dimensi Sebagai Multimedia Interaktif Pada Pokok Bahasan Kalor Untuk Siswa SMP
Authors: Widodo Oki , An'nur Syubhan , Mahardika Andi Ichsan
Published: May 2018

Penggunaan media pendidikan dapat membantu guru dalam menyampaikan materi pembelajaran. Kebanyakan kegiatan belajar disekolah termasuk di SMP Negeri 13 Banjarmasin, berdasarkan pengamatan yang dilakukan peneliti terlihat bahwa dalam memotivasi siswa dengan membawa benda atau objek yang nyata sulit  dilakukan dalam setiap pembelajaran. Hal ini menyebabkan peneliti mengembangkan media ajar slide presentasi 3 dimensi untuk mengatasi permasalahan tersebut. Tujuan penelitian ini: (1) mendeskripsikan validitas media ajar menggunakan slide presentasi 3 dimensi, (2) mendeskripsikan kepraktisan media ajar menggunakan slide presentasi 3 dimensi, (3) mendeskripsikan efektivitas media ajar menggunakan slide presentasi 3 dimensi. Penelitian ini merupakan penelitian pengembangan yang mengacu pada model pengembangan ADDIE. Subjek ujicoba adalah siswa kelas VII H di SMP Negeri 13 Banjarmasin. Data diperoleh melalui lembar validasi media, lembar keterlaksanaan , dan tes hasil belajar. Teknik analisis data menggunakan validitas, reliabilitas, dan uji gain. Hasil penelitian menunjukkan, (1) media ajar yang dinyatakan valid dengan kategori baik, (2) kepraktisan media ajar adalah terlaksana sangat baik, dan (3) efektifitas media ajar dinyatakan efektif. Simpulan penelitian adalah bahwa media ajar menggunakan slide presentasi 3 dimensi layak untuk digunakan.  Utilization of media education can help teachers to deliver lessons. Most of school learning activities included in SMP Negeri 13 Banjarmasin, based on observations conducted research revealing that in motivating students to bring a tangible object or objects hard to do in each lesson. It cause researchers to develop instructional media 3 dimensional presentation slides to overcome these problems. The purpose of this study: (1) describe the validity of instructional media using 3-dimensional presentation slides, (2) describe the practicality of teaching media using 3-dimensional presentation slides, (3) describe the effectiveness of instructional media using 3-dimensional presentation slides. This research is a development which refers to the ADDIE development model. Test subject is class of VII H SMP Negeri 13 Banjarmasin. Data obtained through the validation sheet media, sheet of feasibility, and achievement test. Data were analyzed using the validity, reliability, and gain test. The results showed, (1) instructional media to state valid by either category, (2) practicality media feasibility teaching is very good, and (3) the effectiveness of instructional media of state effective. The inference is that media teaching research using 3 dimensional presentation slides unfit for use.
Implementation Of Learning Cycle 5E Model Assisted With Computer Simulation To Increase Physical Learning Outcome In Student Class VII SMPN 1 Torue
Authors: Wiyandari Ni Putu , Hatibe Amiruddin , Saehana Sahrul
Published: May 2018

This study aims to improve students' physics learning outcomes of class VII SMP Negeri 1 Torue by using learning cycle 5E model assisted with computer simulation. Design of this action research methods follows the model of Kemmis and Mc. Taggart and it was done in two cycles. Each cycle consists of four stages of planning, implementation of action, observation and reflection. The subjects of this study are students of class VIIE SMP Negeri 1 Torue which amounted to 24 students. They consist of 13 male and 11 female students. The research material for cycle I is “form of substance” and cycle II materil is “expansion”. In this study, data were collected through observation and student activity, test of action result and interviews. On the evaluation of cycle I, we obtained classical completeness about 65.21% and classical absorption was about 68.26%. Student activity is in “enough category” with percentage about 78,25%. Teacher activity is in “good category” with 85% percentage. In the second cycle, we obtained learning classical completeness about 86.96% and classical absorption about 81.96%. Student activity and teacher activity are in “very good categories” with percentages of 90% and 96.67%, respectively. It was concluded that the implementation of 5E learning cycle learning model assisted computer simulation can improve student learning result of VIIE grade SMP Negeri 1 Torue.
Meningkatkan Hasil Belajar Siswa Kelas VIII A SMP Negeri 26 Banjarmasin Dengan Menggunakan Model Quantum Teaching Pada Materi Ajar Tekanan
Authors: Rahmawati Nor , Mastuang Mastuang , Misbah Misbah
Published: May 2018

Low of student learning result in science researcher doing lesson because the students are rarely directly involved in learning. Therefore, research that aims to improve learning result. This research aimed to describe (1) teaching materialize, (2) students’ learning result in cognitive aspect and (3) student activity. The method used is a Kemmis & Mc Taggart classroom action research model, with each cycle countain of planning, implementation, observation, and reflection steps. The subjects of this research were 36 students of VIIIth A grade. Technique of data collecting is learning result test, observation sheets, and documentation. Results of this research shown that by applying quantum teaching model (1) teaching materialize on 1st cycle categorized good, on 2nd and 3rd cycles is excellent, (2) completeness of students learning result improve concucivelly individual completeness percentage on 1st, 2nd and 3rd cycles are 69,44%, 77,78% and 94.44%, (3) student activities improve in every aspect with good categorize, except aspects asking questions aspect to teaching, not relevan behavior and express opinion on 1st cycle is categorized good  enough, but on 2nd and 3rd cycle improve with consecutivelly categorized good and excellent. The conclusion that to in order to improve students learning result of VIIIth A grade SMP Negeri 26 Banjarmasin can improved by using quantum teaching model on pressure subject.
Pengembangan Lembar Kerja Mahasiswa Berbasis Inkuiri Untuk Melaksanakan Praktikum Secara Virtual Laboratory Pada Materi Listrik Dinamis
Authors: Saparini Saparini , Wiyono Ketang , Ismet Ismet
Published: May 2018

Telah dilaksanakan penelitian yang bertujuan untuk menghasilkan lembar kegiatan mahasiswa berbasis inkuiri terbimbing untuk melaksanakan praktikum secara virtual laboratory pada materi listrik dinamis yang valid dan praktis. Penelitian ini merupakan penelitian pengembangan melaui tiga tahapan yaitu tapan pendahuluan, tahap pengembangan, dan tahap evaluasi. Tahap evaluasi dilaksanakan dengan mengunakan tahap evaluasi tesmer. Sampel penelitian yaitu mahasiswa pendidikan fisika semester 1 yang menempuh mata kuliah praktikum fisika dasar. Teknik pengumpulan data dilaksanakan dengan dokumentasi, walktrough, dan angket. Kriteria kevalidan diperoleh dengan mengolah data hasil validasi ahli, sedangkan kriteria kepraktisan diperoleh dengan mengolah data hasil angket pada tahap one to one dan small group evaluation. Berdasarkan analisis data yang telah dilaksanakan diperoleh hasil bahwa Telah berhasil dikembangkan lembar kegiatan mahasiswa berbasis inkuiri terbimbing untuk melaksanakan praktikum secara virtual laboratory pada materi listrik dinamis yang valid dengan nilai 84,25% dengan kriteria valid. Telah berhasil dikembangkan lembar kegiatan mahasiswa berbasis inkuiri terbimbing untuk melaksanakan praktikum secara virtual laboratory pada materi listrik dinamis yang praktis dengan nilai 81,47% pada tahap one to one evaluation dengan kriteria sangat praktis dan 84,10% pada tahap small group evaluation dengan kriteria sangat praktis.It has been already done a research that purpose to produce a student activity sheet based on guided inquiry to carry out practicum in a virtual laboratory on valid and practical dynamic electrical materials.  This research is a research development through three stages namely preliminary stage, development stage, and evaluation phase. Evaluation stage is carried out by using testmer evaluation stage. The sample of research is physics students of semester 1 who take subject of  basic physics lab. Data collection techniques were carried out with documentation, walkthrough, and questionnaires. The validity criteria is obtained by processing the data of expert validation result, while the practicality criteria is obtained by processing the questionnaire data in one to one and small group evaluation. Based on the analysis of data that has been implemented, the result has been successfully developed a student activity sheet based on guided inquiry to carry out practicum in a virtual laboratory on valid dynamic electrical material with value of 84,25% with valid criteria. It has been successfully developed a student activity sheet based on guided inquiry to carry out virtual laboratory practicum in practical dynamic electrical materials with a value of 81.47% in the one to one evaluation stage with very practical criteria and 84.10% in small group evaluation stage with very practical criteria.
A Review Paper on “Graphene Field Emission for Electron Microscopy”
Authors: Shao Xiuyuan , Khursheed Anjam
Published: May 2018

Although good field emission from graphene has been demonstrated from a wide variety of different microfabricated structures, very few of them can be used to improve the design of cold field emitters for electron microscopy applications. Most of them consist of densely packed nano-emitters, which produce a large array of defocused overlapping electron beams, and therefore cannot be subsequently focused down to a single nanometer electron probe. This paper reviews the kind of single-tip cathode structures suitable in cold field emission guns for instruments such as scanning electron microscopy, transmission electron microscope or scanning transmission electron microscopy, and reviews progress in fabricating them from graphene-based materials.
Evaluation of Imaging Schemes for Pulsed Arterial Spin Labelling of the Human Kidney Cortex
Authors: Buchanan Charlotte E. , Cox Eleanor F. , Francis Susan T.
Published: May 2018

Purpose: A number of imaging readout schemes have been proposed for renal arterial spin labelling (ASL) to quantify kidney cortex perfusion, including gradient echo based methods of balanced fast field echo (bFFE) and gradient-echo echo-planar imaging (GE-EPI), or spin echo based schemes of spin-echo echo planar imaging (SE-EPI) and turbo spin-echo (TSE). Here, we compare these imaging schemes to evaluate the optimal imaging scheme for pulsed ASL (PASL) assessment of human kidney cortex perfusion at 3 T. Methods: Ten healthy volunteers with normal renal function were scanned using each 2D multislice imaging scheme, in combination with a respiratory triggered FAIR (flow-sensitive alternating inversion recovery) ASL scheme on a 3 T Philips Achieva scanner. All volunteers returned for a second identical scan session within two weeks of the first scan session. Comparisons were made between the imaging schemes in terms of perfusion weighted image (PWI) signal-to-noise ratio (SNR) and perfusion quantification, temporal SNR (tSNR), spatial coverage, and repeatability. Results: For each imaging scheme, renal cortex perfusion was calculated (bFFE: 276 ± 29 mL/100 g/min, GE-EPI: 222 ± 18 mL/100 g/min, SE-EPI: 201 ± 36 mL/100 g/min, TSE: 200 ± 20 mL/100 g/min). Perfusion was found to be higher for GE based readouts compared to SE based readouts, with significantly higher measured perfusion for the bFFE readout compared to all other schemes (P < 0.05), attributed to the greater vascular signal present. Despite the PWI-SNR being significantly lower for SE-EPI compared to all other schemes (P < 0.05), the SE-EPI readout gave the highest tSNR and was found to be the most reproducible scheme for the assessment of kidney cortex, with a CoV of 17.2%, whilst minimizing variability of the perfusion weighted signal across slices for whole kidney perfusion assessment. Conclusion: For the assessment of kidney cortex perfusion, SE-EPI provides optimal tSNR, minimal variability across slices and repeatable data acquired in a short scan time with low specific absorption rate. 