bluuebunny/crossref_metadata_2025 huggingface dataset:
El bicentenario: 200 años de economía colombiana
Authors: Páez Pérez Pedro Nel
Published: December 2019

Este artículo presenta un breve recuento de la historia económica colombiana, desde el siglo XVIII hasta el siglo XXI, identificando los períodos de auge de la exportación de productos básicos y su relación con la transformación estructural de la economía. En esta dinámica fue determinante el cultivo del café ya que representó la base primordial para el desarrollo de la época; con el café no solo se dinamizó un sector manufacturero incipiente en el marco de la sustitución de importaciones, sino que también se conformó el mercado interno. Por medio de fuentes secundarias, el trabajo concluye que después de un modelo de desarrollo interno bastante impopular, en la década de los noventa (siglo XX), y con la apertura económica, el nuevo modelo de desarrollo económico comenzó a depender de las exportaciones mineras y de hidrocarburos que favorecen la desindustrialización y focaliza la economía del país en la fabricación de productos primarios para la exportación.
Editorial
Authors: Llaque Dávila Walter
Published: December 2019

Xenoplan, expresó, que la historia es un acontecimiento que ocurre una sóla vez y no se repite, de allí el valor de historiar los procesos cuando estos constituyen aportes a la ciencia, tecnología, cultura y educación médica en nuestro caso. En cuanto a la Educación Médica y Tecnología Educativa se refiere, la Escuela de Medicina de la Facultad de Ciencias Médicas de la Universidad César Vallejo, desde su creación concibió que la formación de sus estudiantes debería ser diferentes a los modelos tradicionales existentes en el Perú y en nuestro medio, aceptando el reto que todo cambio lleva la responsabilidad de desarrollar paradigmas dinámicos, eficientes y eficaces que van a chocar sin duda con los procesos tradicionales que perduran aun.
ÇEVRİMİÇİ ALIŞVERİŞTE PAZARLAMA STRATEJİLERİNİN TÜKETİCİNİN ALGILADIKLARI RİSK VE GÜVENE ETKİLERİ ÜZERİNE BİR ARAŞTIRMA
Authors: UZUNKAYA Tuğba , YÜKSELEN Cemal
Published: December 2019

Bilişim
teknolojilerinde yaşanan gelişmeler, tüketicilerin satın alma karar sürecini
etkilemektedir. Teknolojinin tüketicilere sunduğu en önemli avantajlardan biri,
çevrimiçi alışveriştir. Çevrimiçi alışveriş, tüketicilere zamandan tasarruf etme,
ürün çeşitliliği, ürünleri karşılaştırma, mağazalara göre daha fazla indirim, farklı
ödeme seçeneği ve teslimatta kolaylık gibi birçok avantaj sunmaktadır. Ancak bu
avantajların yanı sıra tüketiciler çevrimiçi alışverişte, güvenlik, kalite ve
fiyat gibi risklerle de karşılaşabilmektedirler. Tüketicilerin algıladığı risk,
güven duygusunu ve dolayısıyla satın alma davranışını olumsuz yönde
etkileyebilmektedir.

Çalışmanın
amacı, pazarlama stratejileri olarak ele alınan ürün pazarlama stratejileri ve
web pazarlama stratejilerinin algılanan risk üzerindeki etkisini, algılanan
riskin tüketici güvenine etkisini incelemek; tüketici güveninin de satın alma
eğilimine olan etkisini analiz etmektir. Bu amaçla gerçekleştirilen ve Kocaeli’de
18 yaş ve üzeri kullanıcıları kapsayan araştırma neticesinde, tüketicilerin
çevrimiçi alışverişte karşılaştıkları ürün pazarlama stratejilerine ilişkin
algıları ne kadar olumlu ise ürünle ilgili fiyat ve kalite riskleri azalmakta;
bu riskler azaldıkça ürüne duyulan güven artmakta; söz konusu güven ise satın
alma kararını olumlu yönde etkilemektedir. Aynı şekilde, tüketicilerin web
pazarlama stratejilerine ilişkin algıları ne kadar olumlu ise, web sitesinin
kalite ve güvenlik ile ilgili riskleri azalmakta; bu riskler azaldıkça web sitesine
duyulan güven artmakta; söz konusu güven ise satın alma kararını olumlu yönde etkilemektedir.
La transformación jurídica en una economía digital: el caso Uber
Authors: Torres Rivera Rossana Lizeth
Published: December 2019

La economía digital representa un nuevo reto para el derecho en temas como la regulación de los servicios de sociedad de la información y comercio electrónico. El innovador y rápido avance de la tecnología ha convertido a la economía en un ámbito muy distinto y con características peculiares del marco inicial en el que se desarrolló la normativa. En este contexto, la sentencia del Tribunal de Justicia de la Unión Europea en 2017 del caso Uber elabora nuevos criterios sobre la naturaleza jurídica de una plataforma electrónica de economía colaborativa y cuyo estudio es importante para evaluar la trascendencia del fallo.
Gaspar da Índia: o língua e o Brasil quinhentista
Authors: Kaltner Leonardo Ferreira , Teixeira Viviane Lourenço , Santos Melyssa Cardozo Silva dos
Published: December 2019

A partir dos fundamentos teórico-metodológicos da Historiografia Linguística (SWIGGERS, 2012; KOERNER, 1996), tecemos uma narrativa meta-historiográfica para descrição e análise dos relatos sobre o língua Gaspar da Índia, intérprete que veio na esquadra de Pedro Álvares Cabral ao Brasil, em 1500 (LIPINER, 1987). Nosso intuito é buscar identificar o perfil dos intérpretes e o pensamento linguístico derivado das expedições na era das navegações, no período que vai entre o final do século XV e o início do século XVI em Portugal. Analisamos como se deu a tentativa de contato linguístico inicial com comunidades linguísticas autóctones no processo de constituição da América portuguesa, relatado na Carta de Caminha (TEIXEIRA, 2019). Por fim, evidenciamos o contexto cultural e linguístico em que se inseriram as navegações, assim como a influência da educação humanística no processo de globalização quinhentista dos descobrimentos, posterior à etapa empírica (KALTNER, 2011).
GÜNÜBİRLİK GEZİ TEKNECİLİĞİNİN HİZMET KALİTESİNİ GELİŞTİRMEYE DÖNÜK BİR UYGULAMA
Authors: PAKER Neslihan , PAKER Serim , DOĞAN Berna
Published: December 2019

Günübirlik gezi tekneciliği; teknede konaklama yapmayı gerektirmeyen, karayoluyla ulaşılamayan koylardan faydalanma imkânı sunan, gün içerisinde yeme-içme gibi temel ihtiyaçların teknede karşılandığı ve ekonomik olarak ulaşılması daha olanaklı bir deniz turizmi hizmetidir. Söz konusu hizmet, Türkiye’nin yanı sıra yat turizminin birçok gözde destinasyonunda talep görmektedir. Ancak, birçok farklı alanda yaygın bir şekilde tartışılmış olan hizmet kalitesi yazınına yeterince konu edinilmemiştir. Ayrıca, günübirlik gezi tekneciliğinin geliştirilmesine dönük çalışmalar, Türkiye’de deniz turizminin yasal bir çerçeve içerisinde gelişiminin ancak son yıllarda önem kazanmasının sonucu olarak oldukça sınırlıdır. Bu çalışma, günübirlik gezi tekneciliğinin hizmet kalitesi boyutlarının tanımlanması, mevcut hizmet kalitesinin değerlendirilmesi ve geliştirilecek alanlarının belirlenmesini hedeflemektedir. Araştırmanın örneklemi İzmir ili günübirlik tur tekneleri işletmecileri ve bu hizmeti almış müşteriler arasından yargısal yöntemlerle seçilmiştir. Yarı yapılandırılmış derinlemesine görüşmeler aracılığıyla veriler toplanmıştır. Verilerin analizinde Maxqda programı kullanılmış, iki yazar tarafından kodlama yapılmak suretiyle sonuçların güvenilirlik ve geçerliliği artırılmıştır. Ayrıca, yazarların saha gözlemleri sayesinde konu derinlemesine tartışılmıştır. Araştırma sonuçları günübirlik tur teknesi hizmet sağlayıcılarına ve kural koyucularına hizmet kalitesinin geliştirilmesi konusunda ve hizmet kalitesinin günübirlik gezi tekneciliğine dair yazınına katkılar sunmaktadır.
Narda Çiçek Tomurcuğu Alım Dönemi, Karanlık Rejimi ve Bitki Büyüme Düzenleyicilerinin Anter Kültürü Üzerine Etkileri
Authors: ŞAHİN Müge , DOĞAN Selay
Published: December 2019

Nar (Punica granatum L.), Türkiye’de yetiştiriciliği ve ihracatı ile ön plana çıkan bir meyve türüdür. Anter kültürü tekniği ile ıslah çalışmalarının desteklenmesi, özellikle meyve türlerinde zor olan haploidizasyonun sağlanması açısından önemlidir. Narda in vitro androgenesis yöntemi ile haploid bitki elde edilmesi konusunda yayına rastlanılmamıştır. Bu çalışmada, İzmir 1513 nar çeşidinde farklı tomurcuk alım dönemleri, karanlık rejimleri ve bitki büyüme düzenleyicilerinin anter kültürüne olan etkilerinin belirlenmesi amaçlanmıştır. Materyal olarak 1. dönem (25 Mayıs-tam çiçeklenme) ve 2. dönemdeki (10 Haziran-çiçeklenme sonu) A tipi çiçek tomurcukları kullanılmıştır. Kültüre alınan anterlere 4 ve 6 hafta karanlık rejimi uygulanmıştır. Kültür ortamı olarak MS besi ortamına eklenen BAP, 2,4-D ve NAA’nın farklı konsantrasyon ve kombinasyonlarından oluşan 5 farklı ortam denenmiştir. Denemelerin sonucunda uygulamaların hem ana etkisi hem de interaksiyonu istatistiksel açıdan önemli bulunmuştur. En yüksek kallus gelişimi (% 23,33), 2. dönemde alınan çiçek tomurcuklarından elde edilen anterlerin, 4,0 mg/l NAA + 0,4 mg/l BAP ortamında kültüre alınması ve 6 hafta süreyle karanlık uygulamasından elde edilmiştir. Aynı uygulamada sürgün oluşumu da gerçekleşmiştir. Diğer taraftan, oksin içeren ortamlarda kök oluşumları gözlemlenmiştir. Pembe, yeşil, sarı ve beyaz renklerde kalluslar oluşmuştur. Pembe ve yeşil renkli kalluslar kompakt ve sert, sarı ve beyaz renkli kalluslar ise kırılgan ve yumuşak yapılı olarak tespit edilmiştir. Kallus renkleri, bitki büyüme düzenleyicileri konsantrasyonları ve kombinasyonları uygulamalara göre farklılık göstermemiş, oluşan kallusların tamamında farklı embriyojenik dönemler gözlenmiştir.
Significant events as the basis of regional branding strategies in Tatarstan
Authors: Makarova Guzel I.
Published: December 2019

The reorienting of Russian regionalism towards economic and socio-cultural competition between territories has made it relevant for them to have branding strategies. Saturating regions with various socio-political, economic, sporting and cultural events has become a key component of these strategies. This article analyzes the senses and meanings which they promote, representing one of Russia’s most active republics in this regard, the leading region in terms of implementing large-scale projects – the Republic of Tatarstan. Analysis of the international events held in this region from 2013 to 2019 revealed that the political senses which serve to establish the region’s status within the Russian nation are gradually fading into the background, with emphasis shifting towards integration. At the same time ideas are starting to emerge of the republic being an advanced, rapidly developing region, a center for modern technology and a Russian leader in terms of implementing innovative projects. Tatarstan also claims to be an intermediary in establishing partnership between the Russian Federation and nations of the Turkic and Islamic worlds. In turn, large-scale sporting events present the republic’s central city as Russia’s sporting capital, which facilitates the creation of a positive image for this region around the world while sustaining the international community’s interest. The senses produced by local cultural events help in building an ethno-confessional image for the republic, which is primarily built around the notion of a poly-ethnic and poly-confessional region which especially emphasizes parity of Tatar and Russian culture, Islam and Orthodoxy. The “center for the development of Tatar culture” formula, put forward in the 1990’s, also remains valid, with the region being a point towards which all Tatars gravitate, which allows for preserving their ethnic identity on the one hand, and articulating the region’s ethno-cultural distinctiveness – it being the foundation for developing its cultural economy – on the other. Analysis revealed that the elites conduct “strategies of inclusion” of various socio-cultural groups into the republican capital’s cultural life, as well as regional and urban activists into discussing and implementing plans for territorial development.
Probability of extremist threats within the ethno-national realm manifesting in Russia
Authors: Naydenko Vitaly N.
Published: December 2019

This article examines such an issue as the manifestation of extremist threats within the ethno-national realm in Russia. A survey (carried out using questionnaire survey and in-depth interview methods) conducted among 20 experts, who are qualified specialists in the field of counteracting ethnic extremism, analysis of the results of extensive sociological research, as well as scientific work and mass-media publications on the topic allowed to identify the most probable extremist threats, which within the next 5–7 years will start negatively affecting the ethnonational situation in the country, and evaluate their potency. Ethno-national threats with the highest probability, based on expert opinion (with 5 being the average value), include terrorist acts, ethno-national conflicts and mass anti-social displays. The results of extensive sociological surveys suggest that public opinion in Russia, together with the conclusions drawn by the interviewed experts, lean towards a positive evaluation of the state and dynamic of terrorism countermeasures in Russia. However, a considerable amount of terrorism-related crimes, them presenting a serious threat to the public and their prevalence in Russia demands decisive efforts on behalf of the government and society to implement effective countermeasures against potential threats of terrorism. A fairly high degree of probability (with 4 being the average value) was attributed by experts to conflicts occurring within the next 5–7 years between the central government and Russian regions, accompanied by calls to violent action under the guise of nationalism. Somewhat lower probability, according to experts (with 3 being the average value), was attributed to such manifestations of ethno-national threats as calls to overthrow the current government, as well as violent acts targeting government officials and law enforcement, Russian citizens of another nationality or foreign citizens. The least likely threats to manifest (with 2 being the average value) experts considered possible attempts to alter the foundation of the country’s constitutional order, as well as the creation and functioning of illegal armed formations. Expert evaluation of ethno-national threats seem to be reasonably valid, with them being confirmed by conclusions drawn while carrying out extensive sociological research, and by the results of analysis of mass-media publications on the topic of the threats in question. The results of scientific research cited in this article indicate the importance of the further study of ethno-national threats, especially such hazardous ones as terrorist acts, ethnic conflicts and mass ethno-national or ethno-religious based anti-social displays
Independence in professional activity: a glance at long-term trends
Authors: Popova Irina P.
Published: December 2019

This article considers the autonomy at work trends in Russia for more than 15 years on the basis of monitoring data "Social differences in modern Russian society". A degree and characteristics of autonomy in work depend on external conditions and are manifested differently in different periods. The 1990s are a watershed of these periods. The established trends in the degree of manifestation of different types of autonomy in work are shown. There is a marked contradiction between the assessment of their autonomy and limiting framework of its manifestation: in comparison with 2015, in 1999, employees evaluated it significantly higher. This can be explained by adaptation to changing conditions of work and employment. At the same time, the organization of the workplace, according to the estimates of workers, does not give great opportunities to show their autonomy. This trend has been observed throughout the years of the survey. Meanwhile, workers are noticeably more likely to feel the insignificance of their level of autonomy. The study confirmed the relationship of autonomy in labour relations with professional status: a high level of power, education, well-being. There is a decrease in autonomy of the heads of organizations and managers of the lower level. Working conditions are also important: forms of employment, contract, remuneration. Personal characteristics associated with attitudes to change in their lives, play a role. The influence of age and sex is not so significant. Trends in the situation of self-employment are noted: the growth of the scale, professional and qualification compliance. This confirms the assumption that compulsion characterizes self-employment to a lesser extent than in the 1990. It is concluded that autonomy in work is a characteristic of a more privileged social position of workers, as well as emerging social groups of self-employed.
Nos rastros de uma moeda grega
Authors: Bergonzoni Gisela
Published: December 2019

Os três tomos de Los diarios de Emilio Renzi, publicados por Ricardo Piglia entre 2015 e 2017, configuram uma rede com várias camadas temporais costuradas.  Neste ensaio, proponho estudar as aparições de um elemento narrativo que perpassa alguns textos do primeiro tomo dos diários, Años de formación: uma moeda grega. Seguindo os rastros da dracma, que também aparece de relance em outras obras do autor argentino, pretendo investigar a experiência simbólica que esse objeto evoca na poética de Piglia e como ele possibilita que se construa um sistema cifrado de correspondência entre a vida e a escrita.
Notas sobre a historicidade de Os diários de Emilio Renzi
Authors: Pinto Filho Júlio Pimentel
Published: December 2019

Os três volumes editados de Los diarios de Emilio Renzi ora assumem uma estética do fragmento e apontam para o instantâneo, ora desenham uma sequência linear de leituras de formação; ora tratam de um personagem só, o autor, ora negam a dimensão autoral e autobiográfica e buscam registros das memórias coletivas – históricas ou literárias. Marcados por uma vontade fundadora e por inúmeras incertezas e hesitações, Los diarios de Emilio Renzi sondam as possibilidades e os limites da construção de um diário e reúnem a percepção do interior à do exterior, o desenho de uma unidade impossível à representação multiplicada de si. Em todas as circunstâncias, porém, dialogam com a experiência história, indicam percursos genealógicos da obra de Ricardo Piglia e, para representá-la, constroem estratégias singulares de deslocamento e distanciamento.
As metalinguagens de Roland Barthes
Authors: Ferraz Paulo Procopio
Published: December 2019

Quando a palavra “metalinguagem” foi criada, o prefixo “meta” adquiriu a conotação de “sobre”: a metalinguagem é aquilo que está sobre a língua. Em Mitologias, de Barthes, o mito aparece como uma metalinguagem: ele captura uma linguagem-objeto e instala sobre ela o seu próprio significado ideológico. Mas a metalinguagem também é empregada pelo intelectual que analisa o mito. O intelectual é um excluído: sua atitude crítica o condena a ficar à margem da linguagem da sociedade. Esse problema da exclusão aparecerá em toda a sua obra, mas será particularmente importante em Discours amoureux. Nos seminários de preparação do livro Fragmentos de um discurso amoroso, a metalinguagem é a responsável para exclusão do pathos amoroso. Para contornar o problema, o autor desenvolve um sofisticado aparelho teórico. Essa teoria desaparecerá no livro: o surgimento do pronome “eu” resolve, aparentemente, a questão. Ao fazê-lo, contudo, Barthes transfere a responsabilidade da metalinguagem para o seu leitor. Ao lermos as flutuações dos sentidos que ele confere à metalinguagem, percebemos que seus textos oferecem modos diferentes de ver as relações das metalinguagens com suas linguagens-objetos.
Genealogias da escrita em Los diarios de Emilio Renzi
Authors: Gárate Miriam Viviana
Published: December 2019

O ensaio propõe a leitura de três ficções de origem em Los diarios de Emilio Renzi. Años de formación (2015): a primeira delas, vinculada à linhagem familiar (trata-se de explorar o livro a partir de algumas premissas expressas por Piglia em Ideologia y ficción en Borges); a segunda, relativa ao gênero diário enquanto genealogia da escrita “por vir”; em terceiro lugar, a ficção que põe em cena algumas leituras de formação, tendo em vista a genealogia do escritor de formas breves e a passagem para as formas de maior extensão.
Leituras Huachas
Authors: Amaro Lorena
Published: December 2019

O artigo analisa as representações projetadas por seis narradores chilenos  em relatos recentes, de caráter autobiográfico e autoficcional, em torno do que Sylvia Molloy  chamou de “cenas de leitura”. Leonardo Sanhueza, Alejandro Zambra, Lina Meruane, Rafael Gumucio, Luis López-Aliaga e Diego Zúñiga apresentam personagens que conseguem se aproximar do mundo do livro e da leitura com muitas dificuldades, as quais são consequência, em grande medida, da desarticulação das políticas culturais durante a ditadura militar e da solidão vivenciada na engrenagem familiar. Nesse deserto literário se formam como leitores e autores, apesar da precariedade das bibliotecas às quais acedem.
Tecnologias, mediação pedagógica e a partilha de sentidos no contexto escolar
Authors: Pischetola Magda , Rosa João Paulo Leite Cabrera Pereira da
Published: December 2019

As Tecnologias da Informação e da Comunicação criam novas possibilidades de socialização e mediação do conhecimento, com inúmeras implicações para a educação. O artigo define o conceito de mediação pedagógica fundamentado na teoria Histórico Cultural, delineando a importância do processo de apropriação cultural. Apresenta uma pesquisa de caráter qualitativo, desenvolvida em oito escolas municipais de ensino fundamental do Rio de Janeiro, com o objetivo de investigar as percepções e as práticas de mediação pedagógica dos professores nas redes sociais digitais. Os resultados principais apontam para um uso das redes sociais como ferramenta de interação e de comunicação entre professores e alunos, mas raramente como espaço de mediação pedagógica. Registra-se também uma partilha de sentidos semelhantes entre professores de um mesmo contexto escolar, possivelmente explicável através de condições intervenientes específicas, entre as quais destacamos o papel da gestão escolar.
A verdade é uma só!
Authors: Britto Luiz Percival Leme , Farias Fabíola Ribeiro
Published: December 2019

O artigo discute os efeitos da reemergência da direita conservadora no Brasil na Educação, a partir das denúncias de três livros de literatura para crianças, considerados inadequados ao público infantil e juvenil em função de sua temática. Para isso, são consideradas duas abordagens antagônicas no campo da leitura: a primeira é a que afirma, na perspectiva radical-liberal, que é o leitor que daria sentido ao texto, lendo a si mesmo e à sua história nos livros de literatura; a segunda atribui ao texto a significação da narrativa, cabendo ao leitor, a partir de suas condições objetivas e subjetivas de leitura, sua interpretação. Conclui que a tutela das leituras literárias escolares integram projeto maior de controle e de apagamento de visões de mundo divergentes às políticas conservadoras, independentemente das operações de leitura.
Технології різання рукавів високого тиску з металевою опліткою на ручних відрізних верстатах
Authors: Карпенко Микола Миколайович , Богдявічус Марійонас , Богдявічус Паулюс
Published: December 2019

В статті розглянуто проблему технології різання рукавів високого тиску на ручних відрізних верстатах. Розглянуті різні методи відрізання рукавів високого тиску під заготовку, а також порівняна якість торцевих зрізів. Проведено порівняння між різанням на автоматичних відрізних станках та на ручних відрізних станках. Представленні різні експериментальні методики різання для підвищення якості торцевих зрізів рукавів високого тиску. Експериментальним методом пропонована нова технологія відрізання, яка полягає в максимально наближеній фіксації рукава високого тиску до відрізного кругу. В базовій конструкції відрізного станку передбачені лише упори, внаслідок чого після відрізання торцевий зріз рукава високого тиску розпушується металевою оплітки. Пропонована технологія виключає прокручування та згинання рукава високого тиску в процесі різання, внаслідок чого виключається розпушення металевої оплітки. В роботі наведена схема розподілу сил різання в процесі відрізання рукава високого тиску, математична модель визначення нормальних та тангенціальних сил різання. За допомогою тензометричного столу визначено величини складових сил різання при вільному та фіксованому відрізанні рукава високого тиску та проведено їх порівняння. Внаслідок використання даної технології торець відрізаного рукава високого тиску відповідає вимогам без застосування складних технологічних процесів.
Поверхневе легування сталевих виливків
Authors: Ковальчук Олександр Григорович
Published: December 2019

У статті розглядаються методи отримання виливків з диференційними властивостями поверхні, отриманих поверхневим легуванням при литті. Утворення легованого шару відбувається в результаті взаємодії розплавленого металу з легувальним покриттям, який нанесений на поверхню ливарної форми.
Підвищення спеціальних властивостей ливарних хромоалюмінієвих сталей мікролегуванням і модифікуванням
Authors: Романець В. М. , Федоров Г. Є.
Published: December 2019

У роботі представлено методи підвищення спеціальних властивостей хромоалюмінієвих сталей з високим вмістом хрому мікролегуванням і модифікуванням, вдосконалено методики визначення ливарних і механічних властивостей сплавів на основі заліза, які забезпечують високі відтворюваність і достовірність результатів. Установлено оптимальні режими виплавляння хромоалюмінієвих сталей та визначено доцільність використання ітрію, кальцію та ванадію для покращання якості виливків.Для забезпечення високої окалиностійкості виробів, які працюють за високих температур в агресивних середовищах, визначено оптимальні концентрації хрому та алюмінію залежно від робочої температури виробу.Установлено оптимальний вміст ітрію в сталі, за якого сталь набуває кращих експлуатаційних властивостей із мінімальним збільшенням маси.Досліджено окалиностійкість сталі, яка в своєму складі вміщує такі модифікувальні елементи як ітрій, кальцій та ванадій. Установлено їх концентрації в сплаві, вироби з якого набувають найкращих експлуатаційних властивостей.
Дослідження взаємодії алюмінію з титановим композитом
Authors: Лобода П. І. , Гурія І. М. , Солодкий Є В. , Смірнова Я. О.
Published: December 2019

У роботі розглянуто загальні методики рідкофазного виготовлення алюмінієвих композитів. Досліджено взаємодію титану, армованого боридом титану, та розплаву алюмінію, під час якої спостерігався рівномірний перехід волокон бориду титану з пластини титанового композиту в розплав. Дане дослідження є підставою для подальшого, більш глибокого, вивчення взаємодії титанових композитів з розплавом алюмінію.
РОЛЬ ТЕПЛОВИХ ЕФЕКТІВ У СТРУКТУРОУТВОРЕННІ ПРИ КРИСТАЛІЗАЦІЇ ВИСОКОМІЦНИХ ЧАВУНІВ
Authors: Кропівний В. М. , Кропівна А. В. , Босий М. В. , Кузик О. В.
Published: December 2019

В статті обґрунтовано роль теплофізичних процесів у формуванні включень вермикулярного та кулястого графіту, із забезпеченням їх росту за рахунок дифузії  вуглецю з розплаву через аустенітну оболонку. Наведено розрахунок теплових ефектів за теплотою утворення реагентів в чавуні та встановлено їх залежність від температурного фактору.
ОБРАЗОВАНИЕ ЧАСТИЦ ИЗНОСА НА ПОВЕРХНОСТИ КАТАНИЯ ЖЕЛЕЗНОДОРОЖНЫХ КОЛЕС В ПРОЦЕССЕ ЭКСПЛУАТАЦИИ
Authors: Губенко С. И.
Published: December 2019

Исследовали особенности образования частиц износа, связанные с структурными изменениями вблизи поверхности катания железнодорожных колес в процессе эксплуатации. Показано, что наблюдается локализация износа в зоне выкружки, что приводит к подрезу гребней. Установлены основные источники и взаимное влияние разных факторов на образование частиц износа, что дает возможность прогнозировать характер износа поверхности катания железнодорожных колес при различных условиях эксплуатации.
MODELAGEM DO FENÔMENO DE TRANSFERÊNCIA DE MASSA NA HIDRATAÇÃO DO CEREAL MATINAL
Authors: Ibiapina Andreia , Silva de Oliveira Eduardo Henrique , De Souza Martins Glêndara Aparecida , Gramacho da Silva Warley
Published: December 2019

A crocância do cereal matinal está associada a qualidade do produto e é de suma importância dentre suas características sensoriais. O processo de hidratação o qual ele geralmente sofre antes de ser ingerido, pode ocasionar alterações nesta característica e alguns fatores como, quantidade de fluido disponível, temperatura e tempo de hidratação afetam diretamente esse processo.  O objetivo do trabalho foi utilizar modelos empíricos (Cinético de 1ª Ordem e Exponencial) afim de avaliar os parâmetros de hidratação de um cereal matinal hidratado com leite. A hidratação ocorreu em 3 proporções, 3 temperaturas e durante 2 horas, sendo analisadas amostras desse cereal e do leite a cada 15 minutos de hidratação. Dos modelos empíricos, o modelo exponencial foi o que melhor descreveu a cinética de hidratação, porém, nenhum dos dois modelos utilizados mostraram parâmetros de ajustes tão satisfatórios, fazendo necessário o uso de outro modelo que melhor se ajuste aos dados experimentais.
O CONTEXTO DAS EMANCIPAÇÕES NA DÉCADA DE 1980: O CASO DE PAROBÉ/RS
Authors: Bueno Jaison Volnir da Silva , Webber Roswithia
Published: December 2019

O presente estudo tem como objetivo apresentar o contexto em que ocorrem as emancipações municipais no Rio Grande do Sul, trazendo como foco, o caso da localidade de Parobé. Buscaremos identificar o contexto dos processos emancipatórios, bem como quais os aspectos principais para a efetivação dos mesmos. Quanto a metodologia utilizada na pesquisa, faz-se uso de pesquisa bibliográfica, análise das diversas legislações a respeito das emancipações no Rio Grande do Sul, pesquisa em jornais de circulação local e estadual e documentos que compunham o processo de emancipação de Parobé. Através da pesquisa foi possível observar três pontos como fundamentais para a efetivação de uma emancipação municipal: cumprimento das exigências legais, apoio da população e atuação dos “atores políticos”. As exigências legais dizem respeito ao cumprimento do que se está determinado em lei. O apoio da população é efetivado através da realização de plebiscito e, por fim, a atuação dos atores políticos, se refere as ações e estratégias realizadas para a efetivação da emancipação.
GRAU DE SATISFAÇÃO DOS PACIENTES EM RELAÇÃO ÀS REFEIÇÕES OFERECIDAS POR UM HOSPITAL PÚBLICO NA CIDADE DE GOIÂNIA-GO
Authors: Duarte Amélia Cristina Stival , Ferreira Silva Jhessika , De Sousa Abreu Valéria
Published: December 2019

O trabalho intitulado de Grau de Satisfação dos Pacientes em Relação às Refeições Oferecidas por um Hospital Público na Cidade de Goiânia-GO, propôs avaliar a existência de correlação de variáveis com a satisfação das refeições. Tratou-se de um estudo transversal, quantitativo, realizado através da aplicação do questionário adaptado de Pfaffenzeller (2003), que abordou as condições sociodemográficas e as características (aparência, temperatura, sabor/tempero, quantidade) avaliadas nas refeições. Amostra foi composta de 100 pacientes com prevalência do sexo masculino. A faixa etária encontrada na clínica médica foi de 52,6±12,5 anos, e na clínica cirúrgica 42,0±15,8 anos. O tempo médio de internação encontrado foi de 7,25±6,57 dias, com diferença significativa (p=0,014) do tempo de internação entre as clínicas. Com relação a escolaridade, prevaleceu o ensino fundamental incompleto. A renda familiar mensal prevaleceu na faixa de 1 a 3 salários mínimos. Uma prevalência significativa de doenças crônicas na clínica médica e reincidência ao serviço na clínica cirúrgica. Não foi observada diferença entre a consistência e composição da dieta. A maioria dos pacientes relatou estar satisfeito ou muito satisfeito, com diferença estatística somente na aparência (p=0,018). O presente estudo não encontrou correlação significativa das variáveis analisadas com as características da dieta.
ANÁLISE DA ÁGUA DO CÓRREGO MUTUCA DE GURUPI - TO
Authors: Holzbach Juliana Cristina , Santos Natassja Barbosa da Silva , Krauser Maike de Oliveira , Leal Paulo Vitor Brandão
Published: December 2019

A água é primordial para necessidades vitais, transporte de resíduos, resfriamento de máquinas, irrigação, produção de energia, recreação entre outros. A sua disponibilidade no meio ambiente deve ocorrer tanto em quantidade como em qualidade adequada. Desse modo a preservação do meio aquático tem sido um tema cada vez mais discutido e estudado na atualidade. O presente trabalho teve como objetivo analisar a qualidade da água do córrego Mutuca de Gurupi – TO em termos dos parâmetros físico-químicos e biológicos: temperatura, potencial hidrogeniônico (pH), alcalinidade, amônia, cloro, cloretos, cor, turbidez, dureza total, ferro, oxigênio consumido (O.C.), coliformes totais e fecais. Assim, foi possível observar, diante dos resultados obtidos, que o corpo hídrico apresenta uma qualidade relativamente satisfatória quando comparado aos limites estabelecidos pela legislação, sendo que as alterações nos resultados ocorreram devido ao efeito da sazonalidade. O monitoramento da água desempenha função importante na busca da sustentabilidade do uso dos recursos hídricos.
Investigation of Human Emotion Pattern Based on EEG Signal Using Wavelet Families and Correlation Feature Selection
Authors: Surya Dwi Utari , Siwindarto Ponco , Yudaningtyas Erni
Published: December 2019

Emotions is one of the advantages given by God to human beings compared to other living creatures. Emotions have an important role in human life. Many studies have been conducted to recognize human emotions using physiological measurements, one of which is Electroencephalograph (EEG). However, the previous researches have not discussed the types of wavelet families that have the best performance and canals that are optimal in the introduction of human emotions. In this paper, the power features of several types of wavelet families, namely Daubechies, symlets, and coiflets with the Correlation Feature Selection (CFS) method to select the best features of alpha, beta, gamma and theta frequencies. According to the results, coiflet is a method of the wavelet family that has the best accuracy value in emotional recognition. The use of the CFS feature selection can improve the accuracy of the results from 81% to 93%, and the five most dominant channels in the power features of alpha and gamma band on T8, T7, C5, CP5, and TP7. Hence, it can be concluded that the temporal of the left brain is more dominant in recognition of human emotions.
Modeling the Temperature Distribution During Laser Hardening Process
Authors: Mosavi Amir , Salehi Fatemeh , Nadai Laszlo , Karoly Szell , Gorji Nima E
Published: December 2019

A novel mathematical model is developed to calculate the temperature distribution on the surface and bulk of a steel plate under the laser hardening process. The model starts with the basic heat equation then it is developed into a volumetric form and is connected to the various solid existing phases. The proposed model is based on three influencing parameters of the laser hardening process which are the velocity of the laser spot and irradiation time. The results are compared with the available experimental data reported in the literature. The volumetric model provides an assessment of temperature distribution in both the vertical and horizontal axis. Laser irradiation at sufficiently high fluence can be used to create a solid-state phase change on the surface. Primary calculations show that the temperature profile has a Gaussian distribution in horizontal x and y-axis and presents an exponentially decreasing in the horizontal and vertical depth directions.
A Review of Important QTLs for Biofortification Traits in Rice
Authors: Sharma Vinay , Saini Dinesh Kumar , Kumar Asish , Kaushik Prashant
Published: December 2019

Rice (Oryza sativa L.) supplies nourishment to about half of the population of the world's inhabitants. Of them, more than 2 billion people suffer from "hidden hunger" in which they are unable to meet the recommended nutrients or micronutrients from their daily dietary intake. Bio-fortification refers to developing micronutrient-rich diet foods using traditional breeding methods and modern biotechnology, a promising approach to nutrition enrichment as part of an integrated strategy for food systems. To improve the profile of rice grain for the biofortification related traits, understanding the genetics of important biofortification traits is required. Moreover, these attributes are quantitative in nature and are influenced by several genes and environmental variables. In the course of past decades, several endeavours such, as finding the important quantitative trait loci (QTLs) for improving the nutrient profile of rice seeds were successfully undertaken. In this review, we have presented the information regarding the QTLs identified for the biofortification traits in the rice.
Functional ARCH and GARCH Models: A Yule-Walker Approach
Authors: Kühnert Sebastian
Published: December 2019

Conditional heteroskedastic financial time series are commonly modelled by ARCH and GARCH. ARCH(1) and GARCH processes were recently extended to the function spaces C[0,1] and L2[0,1], their probabilistic features were studied and their parameters were estimated. The projections of the operators on finite-dimensional subspace were estimated, as were the complete operators in GARCH(1,1). An explicit asymptotic upper bound for the estimation errors was stated in ARCH(1). This article provides sufficient conditions for the existence of strictly stationary solutions, weak dependence and finite moments of ARCH and GARCH processes in various Lp[0,1] spaces, C[0,1] and other spaces. In L2[0,1] we deduce explicit asymptotic upper bounds of the estimation errors for the shift term and the complete operators in ARCH and GARCH and for the projections of the operators on a finite-dimensional subspace in ARCH. The operator estimaton is based on Yule-Walker equations. The estimation of the GARCH operators also involves a result concerning the estimation of the operators in invertible, linear processes which is valid beyond the scope of ARCH and GARCH. Through minor modifications, all results in this article regarding functional ARCH and GARCH can be transferred to functional ARMA.
A Framework for Maximising the Capture of Genetic Diversity in Sampling for ex situ Conservation
Authors: Neaves Linda
Published: December 2019

The rapid and extensive loss of biodiversity globally has resulted in an increased urgency to capture and conserve the diversity which is present, including genetic diversity within species. However, for many species there is currently no detailed genetic data available to inform the collection and use of material held in ex situ collections and this can hamper the consideration of genetic issues and reduce the likelihood collection represent the diversity present. Even in the absence of direct genetic data, however, it is possible to consider genetic issues using the existing theoretical and empirical evidence-based and biological, ecological and demographic data for a given species. Here a framework to facilitate the consideration of genetic diversity and genetic issues, even where genetic data is lacking, is presented.
Serial and Parallel Iterative Splitting Methods: Algorithms and Applications
Authors: Geiser Juergen , Martínez Eulalia , Hueso José L.
Published: December 2019

The properties of iterative splitting methods with serial versions have been analyzed since recent years, see [1] and [3]. We extend the iterative splitting methods to a class of parallel versions, which allow to reduce the computational time and keep the benet of the higher accuracy with each iterative step. Parallel splitting methods are nowadays important to solve large problems, which can be splitted in subproblems and computed independently with the dierent processors. We present a novel parallel iterative splitting method, which is based on the multi-splitting methods, see [2], [10] and [15]. Such a exibilisation with multisplitting methods allow to decompose large iterative splitting methods and recover the benet of their underlying waveform-relaxation (WR) methods. We discuss the convergence results of the parallel iterative splitting methods, while we could reformulate such an error to a summation of the individual WR methods. We discuss the numerical convergence of the serial and parallel iterative splitting methods and present dierent numerical applications to validate the benet of the parallel versions.
Treatment for Canine Corneal Ulcer using Adipose Tissuederived Mesenchymal Stem Cell Therapy - Case Report
Authors: Arantes-Tsuzuki Petra de Mello , Mazzonetto Patrícia Camacho , Lo Turco Edson Guimarães
Published: December 2019

Corneal ulcer (CU) is an ophthalmopathy characterized by depression of the corneal surface with at least one stromal loss. CU is common in canine and feline species and is usually caused, among others, by trauma, infections, toxic contamination and endocrine disorders. They usually result from an increased inflammatory response and are associated with some clinical signs such as blepharospasm, photophobia, epiphora, pain and loss of corneal transparency. Despite advances in conventional and pharmacological therapy, in many cases indolent and recurrent ulcer treatments still lead to loss of visual acuity of the animal. This paper aims to report the effect of topical application of canine adipose tissue-derived mesenchymal stem cell (cATMSCs) as treatment of recurrent CU in a Poodle dog breed that showed clear difficulty in the healing process associated with diabetes. The animal was submitted to two applications of cATMSCs and showed improvement in the blepharospasm, conjunctival hyperemia, mucopurulent ocular secretion, photophobia, corneal opacity, chemosis, pigmentation, neovascularization, and pain parameters. Besides, Fluorescein test, Schirmer test and ocular fundus exam also showed improvement in their values concomitantly with lesion resolution. Due this, we showed that cATMSC therapy contribute to the regeneration of corneal tissue in CU and may contribute to the treatment to others ophthalmopathies.
Elucidating Role of Ezh2 in Tolerogenic Function of NOD Bone Marrow-Derived Dendritic Cells Expressing Constitutively Active Stat5b.
Authors: Zerif Echarki , Gris Denis , Dupuis Gilles , Amrani Abdelaziz
Published: December 2019

Tolerogenic dendritic cells are crucial to control development of autoreactive T cell responses and prevention of autoimmunity. We have reported that NOD.CD11cStat5b-CA transgenic mice expressing a constitutively active form of Stat5b under the control of CD11c promoter are protected from diabetes and that Stat5b-CA-expressing DCs are tolerogenic and halt ongoing diabetes in NOD mice. However, the molecular mechanisms by which Stat5b-CA modulates DC tolerogenic function is not fully understood. Here, we used bone marrow-derived DCs from NOD.CD11cStat5b-CA transgenic mice (Stat5b-CA.BMDC) and found that Stat5b-CA.BMDC displayed high levels of MHC class II, CD80, CD86, PD-L1 and PD-L2 and produced elevated amounts of TGFβ but low amounts of TNF and IL-23. Stat5b-CA.BMDCs upregulated Irf4 and downregulated Irf8 genes and protein expression and promoted CD11c+CD11b+ DC2 subset differentiation. Interestingly, we found that the histone methyltransferase Ezh2 interacted with Stat5b-CA complex that bound GAS sequences in the Irf8 enhancer whereas Ezh2 did not interact with GAS sequences in the case of the Irf4 promoter. Injection of Stat5b-CA.BMDCs to prediabetic NOD mice halted progression of islet inflammation and protected against diabetes. Importantly, inhibition of Ezh2 in tolerogenic Stat5b-CA.BMDCs reduced their ability to prevent diabetes development in NOD recipient mice. Taken together, our data suggest that the active form of Stat5b induces tolerogenic DC function by modulating IRF4 and IRF8 expression through recruitment of Ezh2 and highlight the fundamental role of Ezh2 in Stat5b-mediated induction of tolerogenic DCs function.
Virtual and Real Water. What is the Difference?
Authors: Yakhno Tatiana , Yakhno Vladimir
Published: December 2019

The paper provides information on significant contamination of real laboratory water with hydrophilic microimpurities. This fact suggests that researchers are practically dealing with microdispersed systems. However, this fact is usually neglected in the discussions of the causes of the anomalous properties of water. We will show that, when exposed to various factors of physical nature, water demonstrates reactions of the same type, namely, increased pH and electrical conductivity, reduced redox potential and viscosity, and enhanced bioavailability. Each exposure is accompanied by the destruction of aggregates of the dispersed phase and its transition to a fine-dispersed state. The relationship between this phenomenon and the change in the physicochemical properties of water is discussed.
PENENTUAN KOMODITAS UNGGULAN PERIKANAN LAUT KABUPATEN POLEWALI MANDAR BERDASARKAN DATA STATISTIK TAHUN 2016
Authors: Ridwan Muhammad , Kasmi Mauli , Putri Andi Rani Sahni
Published: December 2019

Komoditas unggulan sektor perikanan laut merupakan salah satu komoditas strategis untuk meningkatkan pendapatan asli daerah.  Penelitian ini bertujuan untuk menentukan komoditas perikanan tangkap yang menjadi unggulan di Kabupaten Polman, Sulawesi Barat. Penelitian ini menggunakan metode deskriptif dan metode pengambilan sampel adalah purposive sampling berbasis data statistik tahun 2016. Analisis yang digunakan dalam peneltian adalah Location Quotient (LQ), dan analisis Specialization Index (SI). Penentuan komoditas unggulan apabila baik nilai LQ maupun SI >1.  Perangkingan komoditas menggunakan indeks komoditi. Hasil penelitian menunjukkan bahwa komoditas perikanan tangkap Kabupaten Polman di Sulawesi Barat yang menjadi unggulan utama adalah ikan teri (Stolephorus Sp), ikan madidihang (Thunnus albacores), ikan cakalang (Katsuwonus pelamis) dan ikan biji nangka (Upeneus moluccensis). Diantara keempat komoditas unggulan tersebut, ikan madidihang memiliki nilai LQ dan SI yang paling tinggi yaitu 1.87 dan 10.19. Hasil ini berimplikasi pada pentingnya strategi penangkapan dan pengelolaan ikan tuna madidihang di Kabupaten Polman untuk meningkatkan pendapatan daerah. Kata kunci: Komoditas Unggulan, perikanan laut, LQ, SI dan Kabupaten Polewali Mandar
BEBERAPA FAKTOR YANG MENYEBABKAN KEMISKINAN NELAYAN DI GUGUS KEPULAUAN SALABANGKA KECAMATAN BUNGKU SELATAN KABUPATEN MOROWALI PROVINSI SULAWESI TENGAH
Authors: Lanuhu Nurdin
Published: December 2019

Penelitian ini dilaksanakan di Gugus Kepulauan Salabangka Kecamatan Bungku Selatan   Kabupaten Morowali Propinsi Sulawesi Tengah, pada bulan Juli 2016 sampai dengan Agustus 2016. Lokasi penelitian dipilih secara purposif dengan pertimbangan bahwa Gugus Kepulauan Salabangka Kecamatan Bungku Selatan Kabupaten Morowali penduduknya umumnya bermata pencaharian sebagai nelayan dan memiliki jumlah penduduk miskin yang terbanyak di Kabupaten Morowali. Penelitian ini bertujuan melakukan kajian terhadap faktor-faktor penyebab kemiskinan di Gugus Kepulauan Salabangka Kecamatan Bungku Selatan Kabupaten Morowali Provinsi Sulawesi Tengah. Sementara kegunaan yang diharapkan alam penelitian adalah tersedianya data dan informasi factor- factor penyebab kemiskinan yang dapat digunakan oleh berbagai pihak dalam menyusun model pemberdayaan masyarakat nelayan dalam penenggulangan kemiskinan di Kabupaten Morowali. Penelitian ini didesain dengan menggunakan mixed method approach, dengan menggabungkan Quantitative and Qualitative Research Designs secara simultan. Sedangkan Qualitative Research Design menggunakan metode Focus Group Discussion (FGD). Pendekatan ini dilakukan untuk memperoleh data dan informasi yang komprehensif dan saling melengkapi, sehingga situasi riel di lapangan dapat dideskripsikan dengan baik. Adapun proses tahapan penelitian ini adalah Review literature, Kunjungan Lapangan, Uji kuisioner dan FGD, pengumpulan data primer dan sekunder. Hasil Penelitian  menunjukkan bahwa beberapa faktor yang mennyebabkan kemiskinan di Gugus Kepulauan Salabangka Kecamatan Bungku Selatan Kabupaten Morowali Provinsi Sulawesi Tengah adalah Keadaan Musim, Struktur Sosial, Pengelolaan Pendapatan, Pencemaran Lingkungan dan Pelayanan Pemerintah dibidang pemerintahan, pendidikan, kesehatan dan sarana prasarana tranportasi.Guna mengentaskan kemiskinan maka direkomendasikan 1) Pengembangan ekonomi kerakyatan berbasis potensi lokal, 2) Perbaikan pelayanan pemerintah dalam bidang pemerintahan, pendidikan, kesehatan dan penyediaan sarana transportasi laut. Kata Kunci : Nelayan, Kemiskinan, Pulau