bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Perbedaan Salinitas Terhadap Viabilitas Bakteri Pseudomonas spp.
Authors: Arisandi Apri , Wardhani Maulinna Kusumo , Badami Kaswan , Sopiyanti Anisa 
Published: April 2019

<p><strong>ABSTRAK</strong></p><p><em>Kondisi perairan laut yang fluktuatif dan cenderung ekstrim menyebabkan rumput laut mudah terserang penyakit ice-ice. Munculnya bercak putih pada thallus rumput laut Eucheuma cottonii yang terinfeksi penyakit ice-ice diduga disebabkan oleh bakteri patogen yaitu Pseudomonas spp. Tujuan yang ingin dicapai dalam pelaksanaan penelitian ini adalah untuk mengetahui pengaruh perbedaan salinitas terhadap viabilitas bakteri Pseudomonas spp dan untuk mengetahui pada salinitas berapakah bakteri Pseudomonas spp tidak dapat tumbuh. Bakteri diidentifikasi melalui uji biokimia, dan viabilitas diamati dengan menanam bakteri pada media TSA plate dengan salinitas 30, 32, dan 34 ppt dengan 3 kali pengulangan, dan untuk uji konfirmasi bakteri di tanam pada media TSA miring dengan kadar salinitas 0, 20, 40, 60, 80, dan 100 ppt. Hasil yang diperoleh menunjukan bakteri tumbuh dengan normal pada hampir semua media uji kecuali pada media 100 ppt, hal ini menunjukan bahwa bakteri Pseudomonas spp merupakan bakteri yang bersifat halofilik atau dapat tumbuh baik pada kadar salinitas yang tinggi. </em></p><p><em>Kata Kunci: Eucheuma cottonii, ice-ice, Pseudomonosa spp,Viabilitas. </em></p><p align="center">The Influence of Salinity Difference to Viability of Pseudomonas spp. Bacteria<strong></strong></p><p><strong>ABSTRACT</strong></p><p><em>The conditions of marine waters that fluctuate and tend to extremes can cause seaweed susceptible to ice-ice disease. The appearance of white patches on infected Eucheuma cottonii seaweed thallus is estimated as ice-ice disease which is caused by pathogenic bacteria of Pseudomonas spp The objectives of this research is to determine the effect of salinity difference to viability of bacteria Pseudomonas spp and to know on what salinity is the bacterium Pseudomonas spp that can’t grow. Bacteria were identified by biochemical tests. Viability was observed by planting bacteria on TSA plate medium with salinity 30 ppt, 32 ppt, and 34 ppt with 3 repetitions, and for bacterial confirmation test in planting on TSA tilting with salinity 0 ppt, 20 ppt, 40 ppt, 60 ppt, 80 ppt, And 100 ppt. The results showed that bacteria grew normally in almost all test media except in 100 ppt media, this showed that Pseudomonas spp bacteria were halophilic bacteria or could grow well at high salinity levels.</em></p><p><em>Keywords: Eucheuma cottonii, ice-ice, Pseudomonosa spp, Viability.</em></p>
Pengembangan Media Kotak Cahaya Pelajaran IPA Materi Sifat-Sifat Cahaya
Authors: Sholiha Mariatus , Tamam Badrud , Munawaroh Fatimatul 
Published: April 2019

<p><em>Media pembelajaran merupakan salah satu faktor penting dalam keberhasilan proses pembelajaran. Tujuan penelitian ini adalah untuk mengetahui efektifitas, efisien, dan daya tarik media pembelajaran Kotak cahaya pada materi sifat-sifat cahaya. Penelitian ini menggunakan model 4D yang terdiri dari 4 tahapan define, design, development dan dessiminate. Namun peneliti memodifikasi model 4D menjadi 3D, yakni tahap disseminate dalam penelitian ini tidak dilakukan karena keterbatasan waktu, biaya, dan tenaga. Instrumen dan media pembelajaran ini telah divalidasi oleh beberapa ahli yaitu ahli bahasa, ahli materi dan ahli media. Terdapat 3 uji coba penelitian yaitu uji coba perorangan, uji coba kelompok kecil, dan uji coba kelompok besar. Berdasarkan hasil penelitian yang dilakukan, diperoleh hasil bahwa persentase kelayakan media pembelajaran Kotak cahaya menurut ahli bahasa adalah 99,4% (sangat layak), ahli materi 90% (sangat layak), dan ahli media 86,9% (sangat layak). Efektivitas media pembelajaran Kotak cahaya diukur dari segi proses yang didapat dari tes hasil belajar yaitu pada uji perorangan 100% (sangat efektif), uji kelompok kecil 100% (sangat efektif), dan uji kelompok besar 95,4% (sangat efektif). Efisiensi media pembelajaran Kotak cahaya yang diperoleh dari hasil validasi ahli media mendapatkan persentase 87,5%. Sedangkan kemenarikan media pembelajaran Kotak cahaya diukur menggunakan angket siswa dengan persentase uji perorangan 98,3% (sangat menarik), kelompok kecil 94,6% (sangat menarik), dan kelompok besar 96,6% (sangat menarik). Berdasarkan hasil dari validasi ahli dan uji coba, media kotak cahaya layak untuk digunakan dalam pembelajaran IPA.</em></p><em>Kata Kunci: Media Pembelajaran, kotak cahaya, materi Sifat-sifat Cahaya</em>
Mesin Pencacah Cengkeh
Authors: Fauzi Ahmad Sulhan , Predianto Engga , Rhohman Fatkur 
Published: April 2019

<p><em>Telah dirancang mesin pencacah cengkeh untuk skala home industry dengan modifikasi model pisau dan sistem perajangan. Perancangan mesin menggunakan variasi model pisau, pisau pertama berbentuk memanjang horisontal dengan dimensi alas pisau 15 mm, tinggi pisau 3 mm, panjang 150 mm. Pisau kedua dengan bentuk zigzag horisontal dengan dimensi alas pisau 20 mm, tinggi 3 mm, panjang 50 mm. Modifikasi bentuk pisau ini diharapkan memberikan perbedaan hasil cacahan yang halus dan teratur. Dalam perancangan mesin pencacah cengkeh ini juga ditentukan daya motor yang akan digunakan yaitu 0,4625 HP pada putaran 1.400 Rpm. Perancangan mesin pencacah cengkeh ini diharapkan bisa menghasilkan mesin yang sederhana dan mudah digunakan dengan kualitas yang baik, untuk kapasitas pencacahan kurang lebih 5 kg/jam. Dengan menggunakan mesin pencacah ini dalam jangka panjang diharapkan bisa membantu meningkatkan pendapatan masyarakat di daerah penghasil cengkeh</em><em>.</em></p><p><em>Kata Kunci: model pisau, sistem perajangan, hasil cacahan.</em></p><p><strong> </strong></p><p><strong>ABSTRACT</strong></p><p><em>It has been designed clove slicer machine for home industry scale with knife modification and slicer system. The machine used a variation of the knife model, the first knife was horizontally elongated with the dimensions of the knife layer 15 mm, 3 mm height, 150 mm length and the knife length 50 mm. The second knife with a horizontal zigzag with the dimensions of the layer knife 20 mm, 3 mm height, 50 mm long. The modification of knife shape is expected to give the good difference and orderly sliced results. In designed of this machine also determined the clove slicer force motor power, it will be used 0.4625 HP at 1,400 Rpm. The design of clove slicer machine is expected to produce a simple and easy to use machine in good quality, for slicering capacity of approximately 5 kg/hour. In the future, using this slicer machine is expected to improve income of the clove-producing societies.</em></p><em>Keywords: knife, slicer system, sliced result.</em>
The contribution of the NarB and NarGHI enzymes to nitrate reduction in Mycobacterium smegmatis
Authors: Cardoso Nicole Collette , Kana Bavesh Davandra 
Published: April 2019

Abstract
Background: Nitrate reduction in bacteria is an essential step in the nitrogen cycle. For this, the reduction of nitrate to nitrite is catalyzed by a variety of nitrate reductase enzymes. In the pathogen Mycobacterium tuberculosis, nitrate reduction is driven by the NarGHI respiratory and assimilatory nitrate reductase. In addition to this enzyme, Mycobacterium smegmatis carries a second putative narB-encoded nitrate reductase and the contribution of this enzyme to nitrate reduction remains unknown. Herein, we set out to investigate this.

Results: To assess the relative contribution of NarGHI and NarB, the corresponding gene loci we deleted using two-step allelic replacement, individually and in combination, followed by investigation of nitrate reduction using the Griess assay. However, previous reports demonstrated that this assay was unable to report on nitrate reduction in M. smegmatis, as it yielded no detectable levels of the nitrite product. To address this, we modified the assay through the addition of zinc, which reduces nitrate remaining in the reaction to nitrite thus allowing for assessment of nitrate depletion. This then serves as a surrogate for nitrate reductase activity. The mutant strains lacking narB and/or narGHJI retained the ability to reduce nitrate at levels comparable to the wild type. We further investigated nitrate assimilation and all strains defective for these enzymes were able to grow on nitrate as the sole nitrogen source.

Conclusions: Collectively, these data confirm that NarB and NarGHI are individually and collectively dispensable for both respiratory and assimilatory nitrate reduction in M. smegmatis. Furthermore, we identified MSMEG_4206 as a putative, previously unannotated, nitrate reductase in this organism.
Clinical Features of Patients With Familiar Multiple Sclerosis in Lithuania
Authors: Andrijauskis Denas , Balnyte Renata , Keturkaite Ieva , Vaitkus Antanas 
Published: April 2019

Abstract
Background. Most multiple sclerosis (MS) cases are sporadic, however about 20 percent are hereditary [2]. It is still unclear whether heredity affects the progression and severity of the disease. The aim of this study is to assess the effect of heredity on the development of multiple sclerosis and on the course of disease by analyzing the results of disability, severity scales and clinical studies, and comparing them with sporadic cases.
Methods. Our study included 104 patients with MS. The study group was comprised of 38 patients with family history of MS; the control group consisted of 66 patients with no family history. The survey included questions about demographic and clinical characteristics. Diagnostic results were evaluated retrospectively from medical records. Disability assessment was made according to EDSS. MSSS score was calculated using conversion table.
Results. Patients with a family history tend to have slower onset of the disease, while control group is more likely to have an acute onset (p <0.001). Study group more often complained of symptoms related to pyramidal (74 % vs. 50 %) and brainstem (68 % vs. 20 %), cognitive dysfunction (47 % vs. 20 %), headache (37 % vs. 9 %), back pain (32 % vs. 9 %) than those in control group, p <0.05. EDSS and MSSS scores were higher in familiar cases (p <0.05). The number of exacerbations per year was also higher in study group (1.4 vs. 0.8; p <0.05). Patients with a family history have a higher incidence of MRI changes in brainstem (74% vs. 30%) and cerebellum (58% vs. 30%) than the control group (p <0.01).
Conclusions. Patients with a family history tend to have slower onset of the disease, while control group is more likely to have an acute onset. Patients with a family history of MS more often complained of brainstem and cortical dysfunction, and pain in head or back. Both EDSS and MSSS scores were higher in familiar cases. They also have a higher number of exacerbations per year. Patients with a family history have a higher incidence of MRI changes in brainstem and cerebellum.
Research on the multi-objective optimal operation of cascade reservoirs in the upper and middle Yellow River basin
Authors: Bian Jia-qi , Dong Zeng-chuan , Jia Yi-fei , Zhong Dun-yu 
Published: April 2019

Abstract
The reservoirs (hydro plants) along the upper Yellow River are typical cascade reservoirs, with multiple objectives regarding flood control, ice control, water supply, power generation, and ecological security. The competition among these multiple objectives reflects the competition among various agencies with different interests. There has been a certain degree of conflict between ‘power scheduling’, which aims at obtaining greater power generation from the cascade reservoirs, and ‘water regulation’, which is currently being implemented. Questions of how to reasonably use the comprehensive regulation capacity of the cascade reservoirs, in order to relieve the conflicts among multiple objectives, and understand the nature of the competition between ‘power scheduling’ and ‘water regulation’, require urgent research and solutions. Based on an analysis of the current situation regarding water supply, electricity demand, flood control, ice control, and ecology, a multi-objective optimal operation model for the cascade reservoirs in the upper and middle reaches of the Yellow River has been constructed to reveal the relationships between power generation and other objectives. This study provides theoretical evidence for the informed operation of the cascade reservoirs and will be of great significance for coordinating the relationship between power generation and water regulation.
Penetapan Kadar Pati PENETAPAN KADAR PATI PADA BUAH SUKUN (Artocarpus altilis L) MENGGUNAKAN METODE LUFF SCHOORL
Authors: IFMAILY IFMAILY 
Published: April 2019

Zat penting dalam memenuhi kebutuhan gizi salah satunya amylum atau pati, sebagai sumber energi manusia di dunia, diperkirakan 80% bersumber dari pati. Industri bahan makanan di dunia saat ini, memproduksi pati berkisar 50 juta ton per tahun, dan laju pertumbuhan 7,7 % per tahun, dan perkembangan produksi pati dunia oleh industri makanan modern sudah merangsang berbagai pihak untuk mengidentifikasi polisakarida ini dari sumber baru ( Jong dan Adi, 2007:54 ). Kandungan pati ada pada beras, jagung, kacang, juga pada buah-buahan, salah satunya buah sukun. Penelitian bertujuan untuk menentukan kadar pati pada buah sukun (Artocorpus altilis L ) terkait dari jumlah, kadar, dan bentuknya. Pati merupakan bahan dasar di industri makanan atau bahan tambahan untuk pembuatan tablet di industri farmasi. Penetapan kadar dilakukan menggunakan metode Luff Schoorl. Hasil penelitian diperoleh rendemen pati buah sukun 7,167 % dari ekstrak, kadar air pada buah sukun sebesar 0,69 %, kadar abu pada sukun sebesar 0,45%. Filtrat dari pati buah sukun direaksikan dengan larutan Luff Schoorl lalu dilakukan pemanasan menggunakan pendingin tegak lalu dititrasi dengan Na2S2O3. Hasil dari penetapan kadar pati yang diperoleh dari buah sukun yaitu sebesar 71,67%, dengan bentuk pati bulat dan bulirnya tidak rapat.
MODEL DISCOVERY LEARNING BERBANTUAN MEDIA ADOBE FLASH CS 6 PADA MATERI HUKUM NEWTON
Authors: Sipahutar Melva , Dani Rahma , Hendri Menza 
Published: April 2019

Penelitian ini bertujuan untuk meningkatkan hasil belajar pada aspek kognitif siswa kelas X IPA 4 SMA Negeri 10 Kota Jambi pada materi Hukum Newton dengan menggunakan Media Pembelajaran Adobe Flash Cs 6. Penelitian ini merupakan penelitian tindakan kelas yang terdiri atas tiga siklus. Setiap siklus meliputi perencanaan, pelaksanaan, observasi, dan refleksi. Pengambilan data kualitatif dengan pengamatan aktivitas siswa menggunakan lembar observasi sedangkan pengambilan data kuantitatif yaitu untuk mengetahui peningkatan hasil belajar siswa dengan menggunakan tes di setiap akhir siklus. Peningkatan nilai rata-rata persentase aktivitas dan hasil belajar siswa pada siklus I, rata-rata persentase aktivitas siswa adalah 35,6%, nilai rata-rata hasil belajar pada aspek pengetahuan 61 dengan jumlah siswa yang berhasil sebanyak 15 siswa atau 48%, nilai rata-rata hasil belajar pada siklus II yaitu 67,7 dengan jumlah yang berhasil 21atau 68% dan rata nilai aktivitas siswa adalah 61,6 pada siklus III menjadi hasil rata-rata siswa 84 dan jumlah siswa yang berhasil 26 atau 84% dan yang tidak berhasil cuman 5orang siswa. Berdasarkan hasil tersebut dapat disimpulkan bahwa penggunaan media pembelajaran Adobe Flash Cs6 dapat meningkatkan hasil belajar kognitif siswa.
Eu sou o outro: uma busca por alteridade na reportagem "Ave Maria" e a compreensão acerca da violência doméstica
Authors: Leite Ana Daniella Fechine , Nepomuceno Margarete Almeida 
Published: April 2019

O presente trabalho tem como objetivo identificar os níveis de alteridade presentes na produção “Ave Maria”, da jornalista Fabiana Moraes, e avaliar as questões de gênero que propiciam uma narrativa de maior afetação e com interação direta entre personagem e leitor. Na grande-reportagem, o machismo e o patriarcado ganham espaço principal em uma narrativa sobre violência doméstica e feminicídio, propiciando um texto de alteridade. Através da análise de discurso da produção, o artigo se fundamenta no conceito sociológico de alteridade, estruturado por Certeau (2002) e incorporado ao jornalismo por Resende (2002), por meio da pedagogia dos afetos (MEDINA, 2006) e da relação entre os sujeitos Eu e Tu, apresentada em Buber (1979). Palavras-chaves: Alteridade. Jornalismo. Subjetividade. Afetos. Violência doméstica.
As narrativas dos jogos digitais e a Folkcomunicação
Authors: Souza Giselle Gomes da Silva Prazeres 
Published: April 2019

O objetivo deste artigo é demonstrar como as Quadrilhas Juninas, no contexto da folkcomunicação, podem servir de ambiente narrativo temático para a criação de jogos digitais do tipo games. O percurso teórico-metodológico da investigação foi concebido buscando discutir a cultura popular e a mídia digital a partir da criação das narrativas dos jogos digitais. Para atingir o objetivo foi feita uma revisão de literatura dentro do cenário junino e das narrativas para games, ao mesmo tempo em que se mantêm as estruturas de poder, despontam as atividades criativas, em que a mídia se ergue como novo espaço de interação social que modula a própria natureza humana.Palavras-chave: Jogos digitais. Folkcomunicação. Mídias digitais. Narrativas.
“Gretchen, mulher. A cantora!”: a fragilidade da fama e a influência do meme como processo de comunicação
Authors: Gouveia Bianca Rocha , Araújo Mariana De Oliveira , Véras Aislan Brendo Marinho da Silva , Nunes Angelo Manoel Vilar do Nascimento 
Published: April 2019

Explicam-se de forma objetiva os aspectos fundamentais da comunicação a partir da recepção, para, dessa maneira, entender melhor uma das linguagens específicas da rede virtual, que é pautada na utilização de memes nas relações interpessoais. Diante da sociedade imagética em que vivemos, discutem-se casos em que os memes tomaram grandes proporções, ao ponto de impulsionar a carreira de famosos de volta à mídia, como é o exemplo da cantora Gretchen. Esta abordagem, portanto, aponta as consequências de uma mesma imagem ser transmitida inúmeras vezes e de que forma o meme influencia a linguagem entre os indivíduos. Palavras-chave: Meme. Comunicação. Internet. Gretchen.
Tecnologias criativas em bibliotecas: concepções transversais.
Authors: Silva Roosewelt Lins , Biasuz Maria Cristina , Morigi Valdir Jose 
Published: April 2019

A proposta deste texto é conceber a biblioteca como um território de experimentações criativas agenciadas pelas tecnologias e redes digitais. Buscamos sustentação teórica nas investigações sobre os processos de produção de subjetividade a partir de uma perspectiva heterogenética para problematização dos dispositivos tecnológicos nas bibliotecas. A discussão dessas abordagens permitiram reconfigurar a biblioteca como equipamento coletivo de práticas criativas e transversais através de experimentações tecnoestéticas. Assim, propomos o conceito de Tecnologias Criativas em Bibliotecas para ampliação do debate acerca dos dispositivos tecnológicos como potência estética nas bibliotecas. Palavras-chave: Tecnologias Criativas. Bibliotecas. Produção de Subjetividade. Heterogênese. Transdisciplinaridade. Link: http://www.ies.ufpb.br/ojs2/index.php/ies/article/view/28547
Um mapeamento da produção científica sobre bibliotecas comunitárias na Ciência da Informação brasileira
Authors: Alves Mariana de Souza , Salcedo Diego Andres , Correia Anna Elizabeth Galvão Coutinho 
Published: April 2019

As bibliotecas comunitárias são criadas pela própria comunidade com o enfoque em práticas de leitura e ação cultural. No campo da Ciência da Informação esse tema é pouco tratado, quando comparado aos trabalhos que discorrem sobre outros tipos de bibliotecas. No entanto, diversas pesquisas estão surgindo nos últimos anos sobre o tema assim como diversas bibliotecas comunitárias estão sendo criadas. Considera esses pressupostos para justificar esta pesquisa que tem como objetivo mapear e analisar o estado da arte sobre o estudo de bibliotecas comunitárias no campo da Ciência da Informação brasileira. De caráter exploratório e descritivo, a pesquisa demandou como procedimento metodológico a identificação, recuperação e análise da produção científica nas bases BRAPCI, nos anais do ENANCIB e nas Bibliotecas Digitais de Teses e Dissertações dos Programas de Pós-Graduação em Ciência da Informação nacionais. Essa etapa resultou num corpus de 41 documentos que datam de 1970 até 2013. A principal conclusão da pesquisa atenta ao fato de que existe a necessidade de mais políticas públicas em que sejam consideradas as especificidades das bibliotecas comunitárias e a efetiva participação do bibliotecário junto às demandas desse tipo de biblioteca, assim como na elaboração das políticas públicas.Palavras-chave: Biblioteca comunitária. Biblioteconomia. Ciência da Informação.Link: http://www.revistas.usp.br/incid/article/view/107260/118485
Perfil dos periódicos brasileiros mantidos por IES e Sistema Qualis: análise dos títulos indexados na Web of Science e Scopus
Authors: Quartiero Emanoel , Silva Edna Lúcia da 
Published: April 2019

Analisa características dos periódicos científicos do Brasil mantidos por Instituições de Ensino Superior (IES) e indexados nas bases Web of Science e Scopus. Para a realização deste estudo buscou-se identificar tais publicações; verificar as IES editoras e as regiões das publicações localizadas; e levantar aspectos essenciais dos periódicos, sendo eles: idioma, periodicidade, tipo de acesso, área do conhecimento, classificação Qualis-CAPES e plataforma editorial. A coleta dos dados foi realizada nas páginas Web dos periódicos, no Diretório UlrichsWeb e no site do Sistema de Regulação do Ensino Superior (e-MEC) do Ministério da Educação no Brasil. Foram identificados 140 títulos indexados na WoS e ou Scopus. Os dados apontam as universidades como IES responsáveis pela maioria das revistas e que as regiões que comportam a maior parte dessas publicações são as sudeste e sul do Brasil. A pesquisa detecta a condição de acesso aberto dos títulos, constata que as plataformas editoriais de maior uso são o Sistema Eletrônico de Editoração de Revistas/Open Journal Systems e SciELO, e que as áreas do conhecimento predominantes são as de Ciências Sociais (26 títulos), Ciências Agrárias e Biológicas (25 títulos) e Medicina (15 títulos). Em relação aos idiomas admitidos para publicação, o português, espanhol e inglês formam a combinação mais utilizada.Palavras-chave: Comunicação científica. Periódicos científicos brasileiros. Instituições de Ensino Superior. QualisLink: http://www.revistas.usp.br/incid/article/view/96733/118559