bluuebunny/crossref_metadata_2025_split huggingface dataset:
Astrocyte Ca2+Influx Negatively Regulates Neuronal Activity
Authors: Zhang Yao V. , Ormerod Kiel G. , Littleton J. Troy 
Published: March 2017

AbstractMaintenance of neural circuit activity requires appropriate regulation of excitatory and inhibitory synaptic transmission. Recently, glia have emerged as key partners in the modulation of neuronal excitability; however, the mechanisms by which glia regulate neuronal signaling are still being elucidated. Here, we describe an analysis of how Ca2+signals withinDrosophilaastrocyte-like glia regulate excitability in the nervous system. We find thatDrosophilaastrocytes exhibit robust Ca2+oscillatory activity manifested by fast, recurrent microdomain Ca2+fluctuations within processes that infiltrate the synaptic neuropil. Unlike the enhanced neuronal activity and behavioral seizures that were previously observed during manipulations that trigger Ca2+influx intoDrosophilacortex glia, we find that acute induction of astrocyte Ca2+influx leads to a rapid onset of behavioral paralysis and a suppression of neuronal activity. We observe that Ca2+influx triggers rapid endocytosis of the GABA transporter (GAT) from astrocyte plasma membranes, suggesting that increased synaptic GABA levels contribute to the neuronal silencing and paralysis. We identify Rab11 as a novel regulator of GAT trafficking that is required for this form of activity regulation. Suppression of Rab11 function strongly offsets the reduction of neuronal activity caused by acute astrocyte Ca2+influx, likely by inhibiting GAT endocytosis. Our data provide new insights into astrocyte Ca2+signaling and indicate that distinct glial subtypes in theDrosophilabrain can mediate opposing effects on neuronal excitability.
Effects of meal and incretins in the regulation of splanchnic blood flow
Authors: Koffert Jukka , Honka Henri , Teuho Jarmo , Kauhanen Saila , Hurme Saija , Parkkola Riitta , Oikonen Vesa , Mari Andrea , Lindqvist Andreas , Wierup Nils , Groop Leif , Nuutila Pirjo 
Published: March 2017

Objective
Meal ingestion is followed by a redistribution of blood flow (BF) within the splanchnic region contributing to nutrient absorption, insulin secretion and glucose disposal, but factors regulating this phenomenon in humans are poorly known. The aim of the present study was to evaluate the organ-specific changes in BF during a mixed-meal and incretin infusions.

Design
A non-randomized intervention study of 10 healthy adults to study splanchnic BF regulation was performed.

Methods
Effects of glucose-dependent insulinotrophic polypeptide (GIP) and glucagon-like peptide 1 (GLP-1) infusions and mixed-meal were tested in 10 healthy, glucose tolerant subjects using PET-MRI multimodal imaging technology. Intestinal and pancreatic BF and blood volume (BV) were measured with 15O-water and 15O-carbon monoxide, respectively.

Results
Ingestion of a mixed-meal led to an increase in pancreatic and jejunal BF, whereas duodenal BF was unchanged. Infusion of GIP and GLP-1 reduced BF in the pancreas. However, GIP infusion doubled blood flow in the jejunum with no effect of GLP-1.

Conclusion
Together, our data suggest that meal ingestion leads to increases in pancreatic BF accompanied by a GIP-mediated increase in jejunal but not duodenal blood flow.
Populism and the people in Lula's political discourse: Bridging linguistic and social theory
Authors: Coutinho Bruno , Lopes Adriana Carvalho , Silva Daniel do Nascimento e 
Published: March 2017

Abstract: This paper combines conceptual tools from discourse and social theories to analyze a particular speech that former Brazilian president Luiz Inacio Lula da Silva delivered at the end of his second term (2007-2010) in the Complexo do Alemão, a neighborhood located in one of the poorest areas of Rio de Janeiro. It attempts to highlight how Lula breaks with a longstanding tradition of Brazilian politicians who have chiefly represented the political elites. While using a specific rhetoric, Lula constructs (and is constituted by) a “populist” locus of enunciation. Drawing from Ernesto Laclau’s theory of populism, this paper argues that populist logic in Latin America should not be understood pejoratively, but rather as a particular way of doing politics. It thus claims that Lula positioned himself and his interlocutors as “the people,” a specific discourse that breaks with certain Eurocentric expectations about the “appropriate” language of politics in Brazil.Keywords: Discourse; text; context; Lula; Complexo do Alemão; populism.Resumo: Este artigo articula conceitos oriundos tanto da teoria linguística quanto social de forma a analisar um discurso proferido pelo expresidente do Brasil, Luiz Inácio Lula da Silva, no fim do seu segundo mandato (2007-2010) no Complexo do Alemão, um bairro localizado em uma das regiões mais pobres do Rio de Janeiro. O artigo aborda o modo como Lula rompe com uma tradição de políticos brasileiros que representam primariamente as elites. Por meio de uma retórica específica, Lula constitui (e é constituído por) um lugar de enunciação “populista”. Engajado com a teoria do populismo de Ernesto Laclau, este artigo propõe que o populismo na América Latina seja entendido não de modo pejorativo, mas como um modo próprio de realizar política. Assim, argumenta-se aqui que Lula posicionou a si e a seus interlocutores como “o povo”, um discurso específico que rompe com certas expectativas eurocêntricas do que seja a linguagem “apropriada” da política no Brasil.Palavras-chave: Discurso; texto; contexto; Lula; Complexo do Alemão; populismo.
Os registros da experiência da criança na linguagem: o ato enunciativo de transcrição
Authors: Diedrich Marlete Sandra 
Published: March 2017

Resumo: Este artigo aborda a atividade de transcrição envolvida nas pesquisas com fatos de linguagem de criança nas quais os arranjos vocais ganham destaque na análise. Tem por objetivo refletir acerca da atividade de transcrição de fatos de linguagem da criança, a partir de uma perspectiva enunciativa aquisicional. A especificidade desse ponto de vista reside no seguinte aspecto: nos fatos de linguagem da criança marcados por arranjos vocais, o gesto interpretativo do transcritor precisa recair sobre formas discursivas nem sempre coincidentes às da língua, característica da aquisição da linguagem, além de dar conta do registro por escrito de aspectos advindos da manifestação vocal da língua. Com base em princípios derivados dos estudos do linguista Émile Benveniste sobre enunciação, entende-se a transcrição como um ato enunciativo, o que coloca em destaque a figura do transcritor e a relação de interpretância que este estabelece com os fatos analisados.Palavras-chave: transcrição; enunciação; linguagem da criança.Abstract: This paper discusses the transcription activity in research on child language in which vocal arrangements are highlighted in the analysis. It aims to reflect on the transcription activity of child language from an enunciative perspective of language acquisition. The specificity of this view lies in the following aspect: given child language phenomena marked by vocal arrangements, the interpretative gesture of the transcriber must fall on discursive forms, which do not always coincide with standard language forms This is characteristic of language acquisition and the transcriber’s interpretative gesture allows for the written registration of oral language aspects. Based on principles stemming from Émile Benveniste’s studies on enunciation, transcription is, therefore, understood as an enunciative act, that highlights the role of the transcriber and the relation of interpretation henceforth established with the recorded phenomena.Keywords: transcription; enunciation; child’s language.
Eficacia de dos anestésicos tópicos, de uso dental, en pacientes pediátricos
Authors: Maldonado-Ramírez MA , Issasi-Hernández H , Trejo-Tejeda S , Morales- Sánchez LA 
Published: March 2017

INTRODUCCIÓN: el dolor a la punción durante la anestesia dentallocal puede disminuir con ayuda de un anestésico tópico, evitando asociar la anestesia dental con el dolor.OBJETIVO: comparar la eficacia de dos anestésicos tópicos: a) lidocaína/ prilocaína al 5% (parche) y b) benzocaína al 20% (gel) para disminuir la sensibilidad a la punción en la mucosa oral. MATERIALES Y MÉTODOS: se diseñó un estudio clínico comparativo con 60 pacientes entre 3 y 9 años de edad, divididos en dos grupos experimentales; la punción se realizó con aguja dental calibre 30. La intensidad del dolor se evaluó mediante la escala SEM (sound, eyes, motor) contrastando los resultados con los cambios fisiológicos: saturación de oxígeno y pulso. RESULTADOS: 60 niños de ambos géneros, de 3 a 9 años de edad, participaron en el estudio. La variable dolor-moderado se presentó en 15% de la población estudiada (9 participantes) de los cuales 6 fueron femeninas y 3 masculinos, todos pertenecían al grupo benzocaína. El análisis estadístico arrojó una mayor eficacia de lidocaína/ prilocaína (P=0.025). CONCLUSIONES: la aplicación de lidocaína/prilocaína al 5% es más eficaz para reducir el dolor que produce la punción de la aguja de anestesia dental.
FORMAÇÃO DE PROFESSORES: ENTRE SABERES E PRÁTICAS – UM ESTUDO DE CASO
Authors: Prado Jalma Geise Maria Brabo do , Ferreira Andréa Tereza Brito 
Published: March 2017

Resumo: Este artigo trata da formação de professores e sua relação com as práticas e com os saberes docentes, com base em estudos acerca da formação de professores e do cotidiano. Buscou-se compreender os processos de ancoragem entre conhecimentos advindos de processos de formação e práticas docentes tendo como objeto as práticas pedagógicas e suas relações com os saberes ligados à formação docente. Realizou-se um estudo de caso lançando mão de entrevistas e da observação da prática e do processo formativo de uma professora do ciclo de alfabetização e do seu orientador de estudo, considerando as formações do Pacto Nacional pela Alfabetização na Idade Certa – PNAIC da Rede Municipal de Ensino de Belém. Percebeu-se que os professores, tanto formadores quanto alfabetizadores, têm seu modo singular de “fabricar” suas práticas.Palavras-chave: Formação de Professores. Práticas docentes. Saberes docentes.
Técnica de partículas magnéticas: caso del laboratorio del CAMAN
Authors: Rincón Urbina Sonia Ruth , Calvo Cobos Daniel Andrés , Estrada Villa Erika Juliana 
Published: March 2017

El presente artículo presenta el procedimiento general para el empleo de la técnica de partículas magnéticas; describe de manera general las principales características del ensayo y el procedimiento de inspección a desarrollar en el laboratorio del Comando Aéreo de Mantenimiento (CAMAN) de la Fuerza Aérea Colombiana. El método que se empleó en la investigación y en el desarrollo del proyecto fue de tipo documental, con el fin de establecer las normas y reglamentaciones requeridas para la certificación de la técnica en partículas magnéticas del laboratorio de pruebas no destructivas por la autoridad Aeronáutica. Finalmente, con el análisis de los métodos se elaboró el Manual de Procedimientos de Inspección con el propósito de certificar la técnica de partículas magnéticas.
Analisa Laju Pelapisan Chromming Terhadap Corrosion Rate Baja ST 40
Authors: Widodo Edi 
Published: March 2017

Korosi pada logam mengakibatkan penurunan mutu bahan logam, akibat reaksi elektrokimia antara permukaan logam dengan lingkungan sekitarnya. Baja ST 40 merupakan logam yang umum dipakai dalam industri dan peralatan rumah tangga. Pelapisan khrom secara elektroplating pada bahan ini dapat meningkatkan kekerasan dan mencegah terjadinya kontak langsung material dengan lingkungan luar, dengan demikian reaksi oksidasi penyebab korosi dapat dihindari. Laju pelapisan memberikan pengaruh terhadap kualitas permukaan logam, meliputi kekerasan dan ketahanan terhadap korosi. Laju pelapisan dengan khrom diukur dengan parameter perubahan suhu dan arus selama proses elektroplating. Spesimen dari masing parameter memberikan rata-rata laju pelapisan. Laju pelapisan tertinggi dicatat pada kondisi pelapisan selama 10 menit dengan rata-rata laju pelapisan dari tiga spesimen sebesar 5,3 gram. Sedangkan laju terendah pada pelapisan selama 25 menit dengan rata-rata laju pelapisan sebesar 2,5 gram. Laju korosi logam baja ST 40 diperoleh nilai terbesar pada spesimen dengan waktu pelapisan 5 menit, sebesar 235,37 mpy. Sedangkan laju korosi terendah pada spesimen ke dengan lama pelapisan 20 menit sebesar 50,02 mpy
Screening of The Potential for Different Injection Water Compositions To Alter Wettability to More Water-Wet
Authors: Fjelde Ingebret , Omekeh Aruoture Voke , Haugen Preben Emil 
Published: March 2017

AbstractThe water composition can affect the wettability of oil reservoir sandstone rocks. If several injection water compositions are available, the composition with highest oil recovery potential should be selected. Alteration of wettability to more water-wet conditions has the potential to accelerate the oil production and thereby reduce the water production. The main objective for the presented work was to develop a method for fast screening of the potential for available injection water compositions to alter wettability to more water-wet.The wettability of reservoir rock samples was characterized by using a flotation method which relies on the affinity of minerals to either the brine or crude oil phase. Crushed reservoir rock samples were aged at reservoir temperature using brine and crude oil of different compositions, and the amounts of oil-wet particles in the oil-phase were determined. The experimental results were compared with geochemical simulation of rock-brine interactions.In the flotation study, the potential for the injection water compositions to alter the wettability to more water-wet was shown to depend on the crude oil compositions. By geochemical simulations including both ion-exchange and solubility of carbonate minerals, the amounts of divalent cations onto clay surfaces (M2+) were found to vary with the brine composition. Some of the possible injection water compositions were found to reduce M2+ and thereby reduce the potential for cation-bridging. The main trend was decreasing concentration of oil-wet particles (more water-wet conditions) in flotation experiments with decreasing M2+ estimated by simulations. The dominating wetting mechanism for the studied rock-brine-oil systems appeared to be cation-bridging.The study has shown that screening of the potential for available injection water compositions to alter the wettability to more water-wet can be carried out by combining flotation experiments and geochemical simulations. This screening is much less time consuming than standard experiments, and only small amounts of rock samples are required. The potential for the most promising injection water compositions can then be further evaluated by core flooding experiments.
Water Management Experience in Mature Basin in South Argentina
Authors: Hirschfeldt Clemente Marcelo , Bertomeu Fernando Diego 
Published: March 2017

Abstract
During the oil production in mature fields, the implementation of water flooding projects plays an important role for increasing the oil production and the recovery factor of the reservoirs, and this is the case of the Golfo San Jorge Basin in Patagonia Argentina (GSJB). This basin, located in the central Patagonia (Figure 1), is the oldest productive basin of Argentina where the first economic discovery took place in 1907 in Comodoro Rivadavia. With 13.973 active oil wells (Jun 2016), Golfo San Jorge is the first oil producer basin of Argentina producing 251.000 bpd of oil (49 % of Argentinian oil production) and 3,2 MMbpd of water.
The total of water produced are injected in 3.140 wells used for water flooding projects, where 46% of the oil is produced from this method. The continued implementation of these projects, in company with the drilling of new wells, incorporate water from the reservoirs to the production systems continuously introducing various technical, economic and environmental challenges. As part of a comprehensive water management strategy this paper describe different process and operative considerations, as the result of 109 years of production in the oldest basin of Argentina. The following topics will be addressed: Water production and management in Golfo San Jorge BasinWater treatment and distribution (Surface and subsurface)Water flooding projects trendsWater balance: Bottlenecks AnalysisWater management cost and how affect the total operational costWell integrity managementArtificial Lift challenge's, among othersFigure 1Golfo San Jorge Basin Location
As results it is mentioned the important of to take the decision for manage water during the development of fields. Many challenges arise during the production of a mature field with high volumes of water, but is important to understand about the need not only to do it, but also to have and to apply a field operation model to extend the life of mature fields.
Finally, real statistics, information about facilities, best practices and recommendations, are presented with the objective of provide a guide for developing similar fields.
ANALISIS SERAPAN TENAGA KERJA DAN PENDAPATAN PETANI KELAPA SAWIT DI KABUPATEN PELALAWAN
Authors: SIRADJUDDIN IRSYADI 
Published: March 2017

This research aims to know (1) characteristics of farmers oil palm; (2) analysis of labour absorption; and (3) analysis of oil palm production; and (4) analysis of farmers income. The research was conducted in August 2015 until November 2015. Location of research in sub-districts of Bandar Seikijang, Langgam, Pangkalan Kuras, and Ukui in Pelalawan District. The method used interviews, questionnaires, and documentation. Sampling was done by purposive. The results showed (1) Characteristics of age of farmers are productive. While the characteristics of farmer education including secondary level (high school); (2) The most of labor absorption in sub-district Ukui (4,04 HOK / ha), followed by Bandar Seikijang (3,85 HOK / Ha), Pangkalan Kuras (3,80 HOK / ha), and Langgam (3,56 HOK /Ha); and (3) The highest productivity of oil palm in District Ukui (20,80 ton/ha), followed by Pangkalan Kuras (19,02 ton/ha), Bandar Seikijang (17,21 ton/ha), and Langgam (15,44 ton/ha). (4) The biggest income of farmers in District Ukui (Rp 23.750.347, - /ha), followed by Pangkalan Kuras (Rp 22.193.508, - /ha), Bandar Seikijang (19.100.916,- / ha), and Langgam (Rp 14.099.540, - / ha).
FERTILITAS DAN PERSENTASE EMBRIO KERBAU SAMPAI MORULA YANG DIKULTUR DENGAN PENAMBAHAN GLUTATHIONE SECARA IN VITRO
Authors: Harissatria Harissatria , Hendri John 
Published: March 2017

The concentration of high fat content in buffalo embryo culture media is very influential on the increase in oxidative stress that occurs in conditions of in vitro. The occurrence of increased oxidative stress in the process of embryo culture in vitro, would result in lower percentage of embryo culture until the morula stage (32) cells. The purpose of this study was to determine the percentage of fertilized oocytes supplemented with glutathione. To know the development of the embryo until the morula stage (32) cells were cultured in the culture medium supplemented with glutathione (GSH). To determine the viability of morula stage embryo or 32 cells. The materials used in this study is ovarian buffaloes and methods used in this study is an experimental method in the laboratory. Based on these results it can be concluded that the addition of glutathione 1.5 mM in media oocyte maturation buffalo in vitro provide a significant influence on the percentage of maturation ie (P <0:01) or 62.5% and in line with the high percentage of oocytes matured in treatment increase glutathione 1.5 mM, then the percentage of oocytes were successfully fertilized also higher, namely 88.98%. Furthermore, the addition of 3 mM glutathione in embryo culture media in vitro buffalo give a significant influence on the percentage of embryo development to the morula stage or cell 32, namely (P <0.01) in, or 40.73%.
KANDUNGAN FRAKSI SERAT SILASE LIMBAH PISANG (BATANG DAN BONGGOL) DENGAN KOMPOSISI SUBSTRAT DAN LEVEL MOLASES YANG BERBEDA SEBAGAI PAKAN ALTERNATIF TERNAK RUMINANSIA
Authors: Mulya Andika , Febrina Dewi , Adelina Triani 
Published: March 2017

Harvesting bananas will produce stems and stump that can be used as an alternative feed. One processing techniques tomaintain the nutritional value is silage. This study aims to determine the content of the fiber fraction ie. Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), lignin, cellulose and hemicellulose from bananas waste silage with the composition of the substrate and the different levels of molasses. Research using a Completely Randomized Design factorial pattern with two replications. Factor A : the composition of the substrate, A1. stumps 100% : stems 0%; A2. 50% stems : 50% stumps; A3. 0% stumps : 100% stems. Factor B : the addition of molasses 0%; 2.5% and 5%. Data were analyzed using a completely randomized factorial design, the difference between treatments tested Duncan's Multiple Range Test (DMRT). The results showed banana waste silage with the composition of the substrate and molasses with different levels have moderate physical qualities and fiber fractions are NDF 57.86-89.63%; ADF 34.44-46.20%; lignin 11.75-17.19%; cellulose 15.10-32.34%; hemicellulose 11.66-55.18%. Silage that contains 100% of banana stem with the addition of 5% molasses is the best result.
NILAI NUTRISI AMPAS TEBU (Bagasse) YANG DIFERMENTASI MENGGUNAKAN STARBIO® PADA LEVEL YANG BERBEDA
Authors: Rafles Rafles , Harahap Efendi , Febrina Dewi 
Published: March 2017

The bagasse has potential as an alternative feed for ruminant. However, though the high of the crude fibre and the very low in the nutritional value make them very limited in using for animal feed. To overcome the problem in order to increase nutritional value was the fermentation technology by the application of the starbio inoculums. The objective of the research was to observe the nutrition qualities of the bagasse with aplication of different levels of starbio. The experimental design was a completely Randomized Design with 4 treatments i.e. P0 (bagasse + 0% Starbio), P1 (bagasse+ 0.2% starbio), P2 (bagasse+ 0.4% Starbio), P3 (bagasse+ 0.6% Starbio) and each treatment has 5 replication, The parameters measured were pH, dry matter (DM), crude protein (CP), ether extract (EE) crude fiber (CF), ash and Nitrogen Free Extract (NFE). The results of the research indicated that pH of the fermentation was very good (3.37-3.67), DM (66.59-68.73%), and CP 1.47-1,97%. However, there was no effect on EE, CF, ashes and NFE. The addition of 0.6% starbio was the best result to increase CP but did not affect on ash content.
PAPAN SAMBUNG TEMPEL DARI LIMBAH SEBETAN KAYU KELAPA (Cocos nucifera L.)
Authors: Cahyana Budi Tri , Purwanto Djoko 
Published: March 2017

Pengolahan limbah sebetan dari penggergajian kayu kelapa dengan sistim penyambungan dan penggabungan atau laminasi. Kayu sebetan yang telah dikeringkan dibuat strip dengan ukuran 1 cm x 4 cm x 25 cm dibuat sambungan jari dan bangku dengan menggunakan perekat PVAc. Hasil penelitian menunjukkan bahwa keteguhan tekan dan keteguhan lentur paling tinggi pada perlakuan sambungan jari dengan berat labur 200 gr/cm2 yaitu 231,853 kg/cm2 dan 195,809 kg/cm2. Keteguhan tekan sambungan jari dengan berat labur 175 gr/cm2 dan 200 gr/cm2 memenuhi syarat bahan baku bangunan struktural. Dan nilai keteguhan lentur sambungan jari dengan berat labur 175 gr/cm2 dan 200 gr/cm2 tidak memenuhi syarat untuk bahan bangunan struktural. Keteguhan tekan, keteguhan lentur dan delaminasi dipengaruhi dari bentuk sambungan dan berat labur. Bentuk sambungan jari memiliki keteguhan tekan dan keteguhan lentur lebih tinggi dibanding bentuk sambungan bangku.