bluuebunny/crossref_metadata_2025 huggingface dataset:
Fuentes y archivos para el estudio de procesos represivos contra sindicatos y trabajadores/as en Argentina en las dictaduras de la Guerra Fría
Authors: Basualdo Victoria , Nassif Silvia
Published: October 2019

El objetivo del presente artículo es proponer un sintético abordaje de algunos de los principales archivos, centros de documentación y fuentes disponibles para el análisis de procesos represivos sobre sindicatos y trabajadores/as en Argentina durante las dictaduras que tuvieron lugar en el marco de la Guerra Fría. En primer término, se realiza una presentación focalizada en cuestiones de periodización y de historiografía, en la que subrayaremos las potencialidades de abordar al período de la Guerra Fría en su conjunto, en particular analizando las conexiones, y también las diferencias y rupturas, entre los procesos dictatoriales en Argentina. En segundo lugar, propondremos una breve revisión de algunos de los archivos, centros de documentación y tipos de fuentes disponibles para el análisis de estas problemáticas. Finalmente, ofreceremos algunas reflexiones finales de cierre.
Objetividad y discurso en las ontologías de Laclau y Žižek: controversias entre la abundancia y la falta
Authors: Reartes Miguel David
Published: October 2019

En este trabajo intentaremos reconstruir la noción de discurso de Ernesto Laclau, buscando con ello dar cuenta del modo en que se configura el registro de la objetividad en de las distintas etapas de su propuesta teórica. Al mismo tiempo, buscaremos establecer un contrapunto entre la perspectiva de Laclau y el abordaje que realiza Slavoj Žižek de esta misma dimensión. Intentaremos inscribir el debate entre ambos autores en el marco de la distinción formulada por Tønder y Thomassen entre las ontologías de la falta y las ontologías de la abundancia, con el objetivo de indagar en torno a algunas de las controversias que atraviesan al proyecto teórico de Laclau en su intento por articular ambas orientaciones.
O livro didático de educação física: uma leitura da produção acadêmica | The physical education textbook: A reading of the academic production
Authors: Melo Fernando Garcez de , Moreira Evando Carlos
Published: October 2019

O objetivo do trabalho é reunir e interpretar a produção acadêmica (teses e dissertações) acerca do livro didático de educação física. Focalizou-se o período entre 1987 e 2018, utilizando as informações do Catálogo de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. A justificativa reside na recente inclusão da educação física no Programa Nacional de Livro e Material Didático e a necessidade de encontrarmos subsídios para o acompanhamento desse processo de implementação e os desdobramentos no âmbito da prática docente da educação física. Tendo como referência o pragmatismo de Richard Rorty para recontextualizar a produção e apresentar um novo texto, destacam-se a esperança e os receios presentes nas produções acadêmicas, com realce para um conjunto de trabalhos “exploradores do potencial do livro didático” que possui esperança nas maneiras experimentais e humildes. Essa conjuntura de trabalho se diferencia de outro grupo (os “analistas de conteúdos”), crentes nas maneiras teóricas amplas de encontrar justiça e a verdade. Por fim, sugere-se outro ponto de vista aos professores de educação física, para que possam receber os livros didáticos da área com afeição a uma esperança humilde e experimentalista identificada, em especial, no grupo que será denominado “exploradores do potencial do livro didático”.
Qualificação profissional e as políticas educacionais para a juventude no Brasil | Professional qualification and educational policies for the youth group in Brazil
Authors: Lira Jailton De Souza , Santos Sayarah Carol Mesquita dos
Published: October 2019

Este artigo pretende discutir as proposições de políticas educacionais para a juventude brasileira, especialmente relacionada à expansão da Educação Profi ssional que podem ser notadas no Plano Nacional de Educação (2014-2024) e na atual reforma do Ensino Médio. Como referencial teórico, foram utilizadas as análises situadas no campo do materialismo histórico e dialético de base marxista, à luz das categorias analíticas de “Estado”, com base em Engels e Mészáros, da relação entre “trabalho” e “educação”, segundo Saviani, e de “classe social” fundamentada em Marx e Mészáros. Entende-se que a Educação Profissional pensada a partir da análise das legislações e políticas educacionais adotadas apresenta complexos problemas no quesito do papel do Estado para com a sua oferta e qualidade. Além disso, essa modalidade de educação tem perpetuado o dualismo histórico na educação, que oferta uma formação prática para a juventude de origem trabalhadora e destina uma formação mais ampla possível para a juventude oriunda das classes dirigentes. Para fundamentar essas hipóteses, recorreu-se à pesquisa documental, utilizando a Lei n°13.415/2017 da reforma do Ensino Médio e o Plano Nacional de Educação (2014-2024), bem como a revisão de literatura a partir de autores como Frigotto, Krawczyk, Adrião e Pinto, Bezerra e Araújo, entre outros, que contribuem para as reflexões e contextualizações acerca da relação entre educação, Estado, sociedade e mercado.
Educação em comunidades amazônicas | Education in Amazonian communities
Authors: Matos Gláucio Campo Gomes , Rocha Ferreira Maria Beatriz
Published: October 2019

O artigo traz uma reflexão sobre a educação nas comunidades amazônicas, mai especificamente naquelas localizadas às margens dos rios do Estado do Amazonas. A pesquisa está alicerçada na teoria de Norbert Elias e no trabalho de campo de cunho etnográfi co. Osamazônidas representam uma miscigenação oriunda de diferentes grupos étnicos e vivem em condições sui generis, adaptados ao clima quente e úmido e ajustando-se às variações dos períodos de enchente e vazante do rio, e aos períodos da chuva e estiagem. Cultivam pequenos roçados para subsistência, praticam o extrativismo, organizam-se em atividade coletiva denominada de “puxirum”, cujo objetivo é a ajuda mútua, e têm acesso à educação institucionaliza advinda das escolas de características urbanas. O conhecimento “tradicional” utilizado na vida diária nessas comunidades tem raízes nas culturas ancestrais dos povos indígenas, mas foi sendo ressignificado de forma interconectada aos processos de mudanças sociais. A educação escolarizada faz parte desse arcabouço do conhecimento e nos últimos anos tem caminhado a passos largos no universo amazônico, muitas vezes sem valorizar o saber fazer do amazônida. O desafio na educação das comunidades ribeirinhas é considerar a importância do conhecimento da vida diária e introduzi-lo no conteúdo da educação institucionalizada, pois foi ele, ao longo dos séculos, a permitir a manutenção da vida desses grupos humanos no universo amazônico.
Civilização e habitus fronteiriço na obra de José de Melo e Silva |Civilization and frontier habitus in the work of José de Melo e Silva
Authors: Ferreira André Soares
Published: October 2019

O presente artigo visa refl etir sobre aspectos constituintes do habitus fronteiriço a partir das obras “Fronteiras guaranis” e “Canaã do Oeste”, de José de Melo e Silva. As referidas obras integram o corpus historiográfico sul-mato-grossense e revelam elementos integrantes doprocesso civilizador da fronteira Brasil-Paraguai. Utiliza-se a Teoria dos Processos Civilizadores, desenvolvida pelo sociólogo alemão Norbert Elias, como aporte teórico. Habitus, entendido como segunda natureza, desenvolve-se no processo histórico-social que se constitui o desenvolvimento das diversas sociedades marcadas por fi gurações interdependentes. Compreende-se que ohabitus fronteiriço criticado por Melo e Silva na década de 1930, revela aspectos da constituição e dos processos civilizadores da fronteira Brasil-Paraguai. Suas observações revelam as interdependências dos processos sociais e o caráter histórico e social da constituição da identidade regional. Conclui-se que o processo civilizador fronteiriço está em curso e que as relações interdependentes entre brasileiros e paraguaios, descendentes guaranis, produziram um habitus distinto e característico da região.
EVALUASI PROGRAM NASIONAL PEMBERDAYAAN MASYARAKAT(PNPM) MANDIRI PERDESAAN KABUPATEN BINTAN (Studi Kampung Jeropet, Desa Teluk Bakau, dan Desa Malang Rapat)
Authors: Jenawi Billy
Published: October 2019

Setiap daerah di Kabupaten Bintan memiliki karakteristik yang berbeda sehingga Program Pemerintah Kabupaten Bintan dalam memberdayakan masyarakat khususnya melalui Program Nasional Pemberdayaan Masyarakat (PNPM) Mandiri perlu disesuaikan dengan karakteristik dari masing-masing daerah. Dalam hal ini, Pemerintah Kabupaten Bintan belum memperhatikan kebutuhan masyarakat dan hanya mengambil keputusan sendiri dalam pelaksanaan PNPM. Dengan begitu perlu adanya penilaian atas program yang telah dilaksanakan di tiga lokasi dan menelaah dampak positif ataupun sebaliknya yang dirasakan masyarakat setempat. Hasil penelitian ini mendapati ketidaksesuaian penyaluran bantuan PNPM Mandiri yakni berupa pengadaan taman bacaan di Teluk Bakau, sementara yang dibutuhkan masyarakat ialah pengadaan air bersih karena sumur disekitar mengalami kemarau sedangkan di Desa Malang Rapat, Bantuan PNPM Mandiri dalam bentuk program yang berbeda disalurkan Pemerintah Kabuaten Bintan digunakan untuk membangun pemukiman masyarakat. Jika dilihat dari informasi yang telah didapatkan penyaluran dana bantuan PNPM Mandiri. Pemerintah Kabupaten Bintan sebaiknya lebih memperhatikan masyarakat dengan mengadakan suatu forum diskusi kecil yang mengundang RT, RW, dan tokoh-tokoh masyarakat yang berpengaruh sehingga Pemerintah Kabupaten Bintan dapat memahami usulan warga setempat
Implementasi Kebijakan Peraturan Pemerintah Republik indonesia Nomor 47 Tahun 2007 Tentang Kawasan Perdaganganbebas Dan Pelabuhan Bebas Bintan
Authors: Suherry
Published: October 2019

Implementasi Kebijakan Peraturan Pemerintah Republik IndonesiaNomor 47 Tahun 2007 Tentang Kawasan Perdagangan Bebas dan Pelabuhan Bebas Bintan (Studi pada Bidang Organisasi dan Kinerja Badan Pengusahaan Kawasan Bintan Wilayah Kabupaten Bintan) adalah serangkaian langkah-langkah kegiatan dalam proses penerapan atau pelaksanaan suatu keputusan yang diambil dalam suatu aturan yang telah ditetapkan.Untuk melihat Implementasi Kebijakan Peraturan Pemerintah Nomor 47 Tahun 2007 (Studi pada Bidang Organisasi dan Kinerja Badan Pengusahaan Kawasan Bintan Wilayah Kabupaten Bintan) ini, maka faktor yang dapat mempengaruhi tercapainya keberhasilan dari suatu kebijakan dapat dilihat dari dimensi Komunikasi,Sumber daya, Sikap Pelaksana Kebijakan,dan struktur Birokrasi. Penelitian ini dilakukan bertujuan Untuk mengetahui Implementasi Kebijakan Peraturan Pemerintah Republik Indonesia Nomor 47 Tahun 2007 Tentang Kawasan Perdagangan Bebas dan Pelabuhan Bebas Bintan (Studi pada Bidang Organisasi dan Kinerja Badan Pengusahaan Kawasan Bintan Wilayah Kabupaten Bintan. Maka dari hasil penelitian yang dilakukan dapat ditarik kesimpulan bahwapelaksanaannya menunjukkan kondisi yang yang tidak baik seperti yang diharapkan. Terutama jika dilihat dari sumber daya, baik itu dari ketersediaan pegawai/ staf yang memadai, pegawai/ staf yang berkompeten dibidangnya maupun fasilitas fisik atau sarana prasarana kerja yang tidak memadai karena dari segi bangunan dari Badan Pengusahaan Kawasan Bintan Wilayah Kabupaten Bintan.
Ofício de professor de matemática: vocação ou construção? Percepções de futuros professores
Authors: Soares Maria Cecília Pereira , Ferreira Ana Cristina
Published: October 2019

O foco do presente estudo são as percepções de alunos de um curso de Licenciatura em Matemática de uma universidade pública de Minas Gerais acerca do ofício de professor. Nessa pesquisa exploratória, de natureza qualitativa, dez licenciandos foram acompanhados ao longo de três semestres letivos nas disciplinas de Prática de Ensino e de Estágio Supervisionado. Os dados foram produzidos a partir da observação de aulas, do diário de campo da pesquisadora e de entrevistas realizados com os licenciandos. Após sua triangulação, foram organizados em categorias. Duas delas são abordadas no presente artigo: ofício de professor como vocação, missão, dom; ofício de professor como construção complexa. Os resultados evidenciam que, embora alguns licenciandos percebam o ofício de professor de Matemática como dom ou vocação, a maioria o percebe como uma construção complexa que demanda conhecimentos além dos matemáticos e o cumprimento de muitas exigências. Eles percebem que a relação com os alunos é essencial e que se dá em um contexto configurado por situações diversas que demanda aprimoramento contínuo. Contudo, o ofício de professor de Matemática é também visto como prazeroso e gratificante, principalmente, por perceberem que podem contribuir para a formação de seus alunos.
Conhecimentos algébricos na prova de matemática do novo ENEM: uma análise de conteudo no período de 2009 a 2018
Authors: Rodrigues Márcio Urel , Brito Acelmo Jesus , Silva Allan Kardec Messias , Turatti Rael Fernandes
Published: October 2019

No presente artigo, objetivamos identificar a presença dos Conhecimentos Algébricos nas questões das provas de Matemática do Novo ENEM no período de 2009 a 2018 para proporcionar reflexões curriculares aos professores de Matemática em serviço no Ensino médio das escolas. A questão norteadora da pesquisa foi: Qual tem sido a presença dos Conhecimentos Algébricos nas provas de Matemática do Novo ENEM nos períodos de 2009 a 2018? O corpus foi constituído pelas 450 questões da prova de Matemática do “Novo ENEM”. Para o desenvolvimento do trabalho utilizamos alguns conceitos da Análise de Conteúdo (BARDIN, 1977), a qual nos proporcionou a constituição de três Categorias de Análise: (1) Álgebra Elementar; (2) Múltiplas Representações de Funções; e (3) Funções Elementares. Identificamos 86 questões (o que equivale a 19,2% das questões da prova de Matemática do Novo ENEM) relacionadas aos Conhecimentos Algébricos. Constatamos que das 86 questões, 74 (86% das questões) foram classificadas como contextualizadas e 12 questões, o que equivale 14%, possuíam um formato do tipo exercícios relacionadas apenas ao contexto da Matemática. No entanto, identificamos que apenas 32 questões possuíam características de interdisciplinaridade, o que corresponde somente 37% da questões, e 54 questões não possuem características interdisciplinares, o que corresponde a 63% do total de questões. Notamos também que os Conhecimentos Algébricos estiveram presentes em todas as provas de Matemática no período analisado, sendo o ano de 2018 com a maior recorrência, 14 questões, e o ano 2014 com a menor recorrência, quatro questões. Percebemos ainda que o principal conteúdo relacionado aos Conhecimentos Algébricos é a Representação Gráfica de uma Função.
Vamos viajar? – uma abordagem da Aprendizagem baseada em Problemas no Cálculo Diferencial e Integral com alunos de Engenharia
Authors: Lopes Aldo Peres Campos , Reis Frederico da Silva
Published: October 2019

A disciplina de Cálculo Diferencial e Integral I tem sido responsável por altos índices de reprovação e evasão. Assim, é importante refletir acerca do ensino e da aprendizagem de conceitos do Cálculo. Uma abordagem possível para essa disciplina é por meio da metodologia ativa Aprendizagem Baseada em Problemas – ABP (em inglês, Problem-Based Learning – PBL). Entretanto, há poucas pesquisas envolvendo essa metodologia e sua utilização em disciplinas de Cálculo Diferencial e Integral. Neste trabalho, por meio de investigação da própria prática, utilizamos a ABP em turmas de Engenharia, objetivando responder à seguinte questão: Quais são as potencialidades do uso da ABP no ensino de derivadas na disciplina de Cálculo Diferencial e Integral I, possibilitando a resolução de problemas reais? Os problemas escolhidos envolveram otimização e aplicações de derivadas. Constatamos que o uso da ABP possui aspectos positivos como uma potencialização da atenção e do interesse por parte dos estudantes, a viabilização de uma interação significativa com os colegas, além do aumento da percepção da necessidade de estudos e pesquisas para se resolver um problema real. Algumas situações inusitadas ocorreram, tais como a resolução de um problema de maneiras diferentes da tradicionalmente prevista, as dificuldades relacionadas à compreensão dos problemas, bem como confusão e erros no uso de conteúdos prévios. Houve uma maior motivação e um engajamento da maioria dos estudantes em relação a uma aula tradicional e, embora tenham apresentado dificuldades, eles conseguiram associar a teoria com a prática. Por meio da inserção de problemas motivadores, determinados obstáculos ligados à aprendizagem de Cálculo podem ser atenuados / superados.
НАУКОВО-КОНЦЕПТУАЛЬНІ ЗАСАДИ ВИЗНАЧЕННЯ СУТНОСТІ ЕЛЕКТРОННОЇ КОМЕРЦІЇ
Authors: Pylevych Dmytro
Published: October 2019

У статті розглянуто науково-концептуальні засади визначення сутності електронної комерції. Спочатку проаналізовано зміст категорії «комерція», яка розглядається як діяльність із торгівлі товарами й послугами. Використання контент-аналізу наявних у науковій літературі підходів до розгляду змісту дефініції «електронна комерція» дозволило виокремити три базові підходи до її розгляду: інформаційно-узагальнений, товарно-детермінований та галузево-структурований, обґрунтовано їхню сутність та відмінності. Також виділено базові ознаки електронної комерції, до яких віднесено такі: взаємодія економічних суб’єктів між собою; отримання прибутку; задоволення потреб споживачів товарів та послуг; використання інформаційних мережевих технологій; рух фінансових ресурсів. У статті з урахуванням отриманих результатів запропоновано авторське розуміння окресленої категорії.
Enantioselective Olefin Hydrocyanation Without Cyanide
Authors: Schuppe Alexander , Borrajo-Calleja Gustavo M. , Buchwald Stephen L.
Published: October 2019

The enantioselective hydrocyanation of olefins represents a conceptually straightforward approach to prepare enantiomerically enriched nitriles. These, in turn, comprise or are intermediates in the synthesis of many pharmaceuticals and their synthetic derivatives. Herein, we report a cyanide-free dual Pd/CuH-catalyzed protocol for the asymmetric Markovnikov hydrocyanation of vinyl arenes and the anti-Markovnikov hydrocyanation of terminal olefins in which oxazoles function as nitrile equivalents. After an initial hydroarylation process, the oxazole substructure was deconstructed using a [4+2]/retro-[4+2] sequence to afford the enantioenriched nitrile product under mild reaction conditions.
Red Organic Light-Emitting-Diodes based on a N-Annulated Perylene Diimide Dimer
Authors: Dayneko Sergey V. , Rahmati Mohammad , Pahlevani Majid , Welch Gregory
Published: October 2019

In this contribution we report on solution processed red OLEDs based upon a N-annulated perylene diimide dimer, namely tPDI2N-EH, a red-light emitting molecule. OLED devices with the architecture of glass/ITO/PEDOT:PSS/EML/LiF/Ag (EML = emitting layer) were fabricated with EMLs comprised of tPDI2N-EH neat and blended with poly (9,9-dicotylfluorene, PFO), all solution processed from non-halogenated solvents. The photophysical and electrophysical performance of PFO:tPDI2N-EH-blend films with different composition ratios were investigated. The PFO:tPDI2N-EH-based OLEDs with a 2:18 ratio exhibited best performance. The PFO:tPDI2N-EH-based OLEDs gave red electroluminescence with the emission wavelength of 635 nm and the CIE (international commission on illumination) coordinates of (x = 0.672, y = 0.321). OLEDs with EMLs fabricated using roll-to-roll compatible methods are also demonstrated.
Formation of Enamines via Catalytic Dehydrogenation by Pincer-Iridium Complexes
Authors: Zhang Xiawei , Malakar Santanu , Krogh-Jespersen Karsten , Hasanayn Faraj , Goldman Alan
Published: October 2019

Efficient pincer-ligated iridium catalysts are reported for the dehydrogenation of simple tertiary amines to give enamines, and for the dehydrogenation of β-functionalized amines to give the corresponding 1,2-difunctionalized olefins. Experimentally determined kinetic isotope effects in conjunction with DFT-based analysis support a dehydrogenation mechanism involving initial pre-equilibrium oxidative addition of the amine α C-H bond followed by rate-determining elimination of the β-C-H bond.
The Role of Sodium Sulfate Supporting Electrolyte in Ammonium Transport and Reduction at Interface Between Platinum Cathode and Solution
Authors: Xu Linji , Pang Yunsong , Huang Dezhao , Zhuang Huichuan , Liu Wenzong , Luo Tengfei , Lee Po-Heng , Feng Li , Lu Junchi
Published: October 2019

Ammonium is a potential hydrogen fuel and can be recovered from high ammonium wastewater via electrodeionization (EDI) process. Since NH4+ is a weak acid ion, sodium sulfate (Na2SO4) is used as a supporting electrolyte to improve electrolyte’s conductivity. This manuscript investigated the NH4+ behaviors in high Na2SO4 solution through electrochemical analysis methods and molecular dynamics (MD) simulations. Ionic strength increased, leading to a decreased ionic activity, and thus negatively influenced NH4+ transportation with the increasing concentration of Na2SO4 solution. Na+ competitively occupied the place of electric double layer (EDL) and impeded NH4+ to get closer to the electrode surface. Besides, water molecules played a critical role in determining the net charge density and the potential drop. The experimental tests and theoretical simulation demonstrated that NH4+ reduction (NH4(aq)+ + e- → 0.5 H2(g) + NH3(g)) in the cathode was strengthened in the low concentration range (0-0.25 M Na2SO4) but inhibited in the concentration range of 0.5-1.5 mol L-1.
Exploring the Dynamics of Bound Water in Nylon Polymers with Terahertz Spectroscopy
Authors: Hoshina Hiromichi , Kanemura Takuro , Otani Chiko , Ruggiero Michael
Published: October 2019

Terahertz (THz) spectroscopy was used to observe adsorbed water structure and dynamics within polymer films, ultimately providing a strong rationale for the observed rates of water desorption. The THz absorption spectra of nylon-6 films undergoes drastic changes during the hydration and drying process. Additionally, the structural change from g to a crystals, induced by the hydration, was observed by the characteristic band of a-nylon-6 at 6.5 THz. Importantly, the THz spectra of adsorbed water, as well as deuterated water, within in the nylon films were observed by the continuous measurement of a-nylon during dehydration. The differential spectra clearly show three absorption bands of water molecules named Peak I, II and III, which behaved differently between the H2O and D2O materials. The spectra were assigned using a combination of ab initio molecular dynamics simulations and solid-state density functional theory calculations, and were compared to previous spectral assignments of bulk water. The results show that the inclusion of H2O and D2O into polymer films results in a distinct set of spectral features that, while similar in frequencies to the dynamics of bulk water, represent significantly different motions owing to the unique chemical environment within the material. These results highlight the significant utility of using THz spectroscopy to study the hydration dynamics and spectral signature of bound water in this important class of materials.
Chemically Induced Splay Nematic Phase with Micron Scale Periodicity
Authors: Connor Perri , Mandle Richard
Published: October 2019

Nematic liquid crystals lack positional order of their constituent molecules, which share an average orientational order only. Modulated nematic liquid crystal phases also lack positional order, but possess a periodic variation in this direction of average orientation. In the recently discovered splay nematic (NS) phase the average orientational order is augmented with a periodic splay deformation of orientation perpendicular to the director. In this communication we report the first example of a splay nematic phase which is chemically induced by mixing two materials, neither of which exhibit the NS­ phase. The splay-nematic phase is identified based on its optical textures, X-ray scattering patterns, and small enthalpy of the associated phase transition. We measure the splay periodicity optically, finding it to be ~ 9 μm. This unexpected generation of the splay-nematic phase through binary mixtures offers a new route to materials which exhibit this phase which complements ongoing studies into structure-property relationships and could accelerate the development of technologies utilising this remarkable polar nematic variant.
Efficient Escherichia coli (E. coli) Trapping and Retrieval from Bodily Fluids via a Three-Dimensional (3D) Microbeads Stacked Nano-Device
Authors: Chen Xinye , miller Abbi , Cao Shengting , Gan Yu , Zhang Jie , He Qian , Wang Ruo-Qian , Yong Xin , Qin Peiwu , Lapizco-Encinas Blanca , Du Ke
Published: October 2019

A micro- and nano-fluidic device stacked with magnetic beads is developed to efficiently trap, concentrate, and retrieve Escherichia coli (E. coli) from bacteria suspensionand pig plasma. The small voids between the magnetic beads are used to physically isolate the bacteria in the device. We use computational fluid dynamics (CFD), 3Dtomography technology, and machine learning to probe and explain the bead stacking in a small 3D space with various flow rates. A combination of beads with different sizes is utilized to achieve a high capture efficiency of ~86% with a flow rate of 50 μL/min. Leveraging the high deformability of this device, the E. coli sample is retrieved from the designated bacteria suspension by applying a higher flow rate, followed by rapid magnetic separation. This unique function is also utilized to concentrate E. coli from the original bacteria suspension. An on-chip concentrationfactor of ~11× is achieved by inputting 1,300 μL of the E. coli sample and then concentrating it in 100 μL buffer.Importantly, this multiplexed, miniaturized, inexpensive, and transparent device is easy to fabricate and operate, making it ideal for pathogen separation in both laboratory and pointof- care (POC) settings.
The Limited Influence of Transference Number on the Performance of Nanoscale Batteries
Authors: Dwelle Kaitlyn , Willard Adam
Published: October 2019

This manuscript presents a study of the impacts of the transference number on the performance of nanoscale batteries. We use numerical simulation to show that the transference number is a poor predictor of nanoscale battery performance. We attribute this finding to the ability of electrolytes to break local charge neutrality over nanometer length scales, thereby mitigating the negative effects of concentration polarization within and in between the electrodes. These results highlight the need for separate design principles when engineering materials for very small battery systems.
Optimizing the Atomic Layer Deposition of Alumina on Perovskite Nanocrystal Films by Using O2 as a Molecular Probe
Authors: Saris Seryio , Dona Sanduni , Niemann Valerie , Loiudice Anna , Buonsanti Raffaella
Published: October 2019

Encapsulation methods have been shown to be effective in imparting improved stability to metal-halide perovskite nanocrystals. Here, we optimize the atomic layer deposition of amorphous alumina as a protective layer for CsPbBr3 quantum dot thin films. We use oxygen as a molecular diffusion probe to assess the uniformity of the deposited alumina layer.
Risk stratification methods and their significance in pulmonary arterial hypertension
Authors: Avdeev S N , Tsareva N A
Published: October 2019

Despite significant advances in therapy, pulmonary arterial hypertension (PAH) remains a progressive disease with a poor prognosis. Immediately after establishing the diagnosis of PAH, urgent treatment with PAH-specific therapy is required. Due to the progressive nature of the disease, all patients should be closely monitored and their treatment regimen should be promptly changed according to clinical need. Risk stratification is an important method for informing the clinician and the patient about the prognosis of disease and the choice of therapy methods. The REVEAL scale and the ESC/ERS 2015 risk assessment table are important multifactorial tools for making decisions about the prescription and correction of PAH therapy, as well as for assessment of patients' response to therapy. Current guidelines for PAH indicate that the most important task of treatment of PAH is to achieve the low - risk status.
Comparative efficacy and safety of enoxaparin followed by warfarin and rivaroxaban monotherapy in the treatment of venous thrombosis in patients after intracardiac catheter interventions
Authors: Loginova A I , Kropacheva E S , Maykov E B , Balakhonova T V , Golitsyn S P
Published: October 2019

Aim: to compare two anticoagulant therapy (ACT) regimens in the treatment of venous thrombosis (VT) in patients after catheter interventions - electrophysiological studies (EFIs) and ablations: enoxaparin followed by warfarin, and rivaroxaban monotherapy. Materials and methods. The study included patients from 18 years and older with heart rhythm disorders and planned catheter ablation. When parietal venous thrombosis (VT) were detected at the femoral vein puncture site, all patients were randomly assigned to two treatment groups. In group I enoxaparin 1 mg/kg was prescribed every 12 hours with switching to warfarin after 7 days with maintenance of the target INR values (2.0-3.0). In group II rivaroxaban therapy was started at a dose of 15 mg twise/day for 21 days with a further transition to a dose of 20 mg/day. The total period of observation and treatment of patients was at least 3 months. Results. 408 patients were observed, 42 (10.3%) patients with parietal VT were divided into two treatment groups. In group I (n=16) complete lysis of VT was noted by the 7th day of treatment in 7 (58.3%) patients, however this scheme was associated with a greater risk of complications (р=0.003) at the puncture site in the form of arteriovenous fistulae (n=1; 8.3%) and intermuscular hematomas (n=4; 25%). In group II (n=26), no complications were noted, the lysis time of VT was on average 21 days (n=18; 69.2%). Complete lysis of VT was noted in both groups at the time of the control observation point (3rd month). Conclusion. The efficiency of the two VT treatment regimens was comparable. Enoxaparin therapy is associated with a high risk of local complications, namely intermuscular hematomas (n=4; 25%) and arteriovenous fistulas (n=1; 8.3%). Rivaroxaban monotherapy is safer (p=0.003); in Group II none of the patients had any complications.
Antihypertensive therapy in men and women in real clinical practice according to the National register
Authors: Oshhepkova E V , Aksenova A V , Orlovskij A A , Chazova I E
Published: October 2019

Hypertension is one of the most important risk factors for cardiovascular diseases (CVD) in the world, including Russia. Current Guidelines for the management of arterial hypertension do not include different theatment strategies for men and women. Gender and age analysis of antihypertensive treatmen in men and women could reveal unreasonable and non - optimal treatment in each group. The purpose of this study was to identify the gender features of antihypertensive therapy used by primary care physicians in patients with hypertension. Materials and methods. The study is based on the Arterial Hypertension Registry established in 2012. The methodology of it has been described previously [1]. Medical data from outpatient cards were entered by doctors of 53 city primary care medical centers and 5 cardiology clinics from 22 regions of the Russian Federation. The study included the data of 33 564 patients from 18 years and older with diagnosis of arterial hypertension. Gender, age, height, body weight, smoking status, office blood pressure (BP), laboratory and instrumental examination methods, diagnosed cardiovascular and cerebrovascular diseases and comorbidities in accordance with the International Classification of Diseases of the 10th revision [ICD-10], as well as the treatment (antihypertensive and lipid - lowering therapy) were listed. Results and conclusion. Gender differences in the prescription antihypertensive therapy (AHT) in men and women with hypertension were revealed. Apparently, one of the reasons for these differences is the earlier and more frequent development of cardiovascular and cerebrovascular complications of hypertension in men than in women. Beta - blockers (BB) and angiotensin - converting enzyme inhibitors (ACEi) are more often prescribed to men with hypertension and with coronary artery disease (CAD), myocardial infarction (MI) and chronic heart failure (CHF). Women with hypertension are more often prescribed angiotensin receptor blockers (ARB), thiazide and thiazide - like diuretics. The study also showed non - optimal treatment of patients with hypertension. Insufficient prescription of medication which could improve the prognosis of the disease (ACE inhibitors /ARB, BB, mineralocorticoid receptor antagonist) have been identified in patients with hypertension and CAD, MI, CHF. It is noteworthy that in the some outpatient cards of patients with AH there is no record of AHT prescription: at a young age - in 9.6%, at old age in 15.1% of cards. Despite the fact of high and very high cardiovascular risk of the majority of patients, lipid - lowering therapy (statins) was prescribed insufficiently. The most statin administration was observed in hypertensive patients with coronary artery disease (50.1%) and myocardial infarction (62.7%).
Introduction
Authors: Béat Emma Liora , Grönegräs Maximilian
Published: October 2019

This article is the introduction to this MaRBLe issue.
Analysis of Journalists’ Views on Funding and Newspaper Survival in Nigeria
Authors: Tachia Wata
Published: October 2019

This study analysed journalists’ views on newspaper funding and survival in Nigeria. The study adopted survey research design to obtain data in this study. The population of the study was 1478 comprising 516 active NUJ members in the FCT and 962 members from Lagos. The sample size of 169 was determined using Taro Yamene’s (1967) sample size determination published table (cited in Kusugh, 2017). To sample respondents in this study, multi stage sampling procedure was used. Structured and Semi Structured interviews were used as instruments for data collection by the researcher in the two cities. The research instruments were face and content validated by the three experts, one from the Department of Mass Communication and two statisticians in the Faculty of Statistics, University of Nigeria, Nsukka, to ensure that it measured the appropriate data. The reliability of the instrument was ensured and the result showed a Cronbach’s alpha value of 0.786, suggesting that the items have relatively high internal consistency. Data were collected with the help of NUJ leadership in Abuja and Lagos State Councils as well as Research Assistants at the Benue Liaison Offices in the two cities. The data collected were analysed using descriptive statistics and the Pearson Product-Movement Correlation Coefficient was employed to test the null hypothesis in this study. The findings from the research are thus: journalists believe that funding is important to determine newspaper survival. They also feel that traditional funding sources should be encouraged to fill the funding gaps. Another finding is that some unconventional sources of funding such as “Total newspapering,” commercialisation of news, etc harm newspapers in Nigeria. Based on the findings, the following recommendations were made: that Nigerian newspapers should be more creative in their multidimensional approach to funding through traditional and non-traditional ways; that newspaper owners should strengthen and reposition NPAN in attaining collective goals (tax relief, subsidy on printing materials, etc); that Nigerian banks should give newspaper organisations cheaper, long term loans to enable them serve the public well.
Developing the Total Student: Model for Learners as Partners in Tertiary Institutions in Nigeria
Authors: Tralagba Chris Eriye , Akpan Abasiama G.
Published: October 2019

In addition to influencing students’ knowledge base, thinking abilities and skills; university education offers the opportunity to promote other aspects of students’ growth as people. University education has an important role in shaping our future society because today’s university students will be tomorrow’s doctors, engineers, business managers, teachers, faith leaders, politicians, citizens, activists, parents and neighbours. While they need to be able to demonstrate key skills and knowledge to enact those roles effectively, they must also demonstrate personal and social responsibility in carrying them out. While much of the current political discourse about higher education is instrumental and economic, this paper aims to lay the foundation for a discourse based on student development. Data was collected through focus group discussions with students in the various colleges in Evangel University, Akaeze - Nigeria, in-depth interviews with lecturers, administrative staff and document analyses of conference papers and journal articles. Findings reveal that the quality of tertiary education is influenced by socio–cultural, academic, economic, policy, political and administrative factors all of which are inextricably interwoven. In this case, the argument is for leadership of teaching and learning for the purpose of promoting students’ holistic development. The discussion of the findings is based on the findings on a wide range of related literature on learners’ challenges in other universities in Nigeria. The paper concludes that the quality of higher education in tertiary institutions is influenced by factors that have their roots in commercialization, general funding, and human population growth. It was recommended that appropriate policies and indigenous professionals (both academic and administrative) are necessary for improving the quality of higher education in tertiary institutions.
Oil and Gas Reservoir Characterization; A Case Study of Agbada Field
Authors: Nador Elenwo , Wopara Fidelis O. , Emmanuel Ehirim O. .
Published: October 2019

This study on reservoir characterization was conducted using seismic data and well logs. The aim was to characterize the petrophysical properties and structural element in the field for hydrocarbon volume estimation and determination of infill well locations. Three reservoirs were identified (J100, K100, L100) at shallow, middle and deep depths and correlated across the field using gamma ray log. Petrophysical characterization revealed porosity ranges from 25 to 27% in J100 reservoir, 16% to 27% in K100 reservoir and 11 and 18% in L100 reservoir. This shows good to very good porosity values for reservoir rocks. On average, water saturation is 80%, 68% and 70% in J100, K100, and L100 reservoirs. Net to gross ranged from 24 to 77% in J100, 38 to 82% in K100 and 29 to 75% in L100 and L100 reservoir. Average net to gross revealed that the sands are cleaner with depth. Resistivity and neutron-density logs revealed the reservoirs are oil bearing. Structural characterization of seismic date revealed the presence of synthetic and antithetic faults. Depth structure maps generated revealed closures that are anticlinal and fault supported. Oil water contact super-imposed on the structural maps revealed closures that were oil bearing. Estimation of stock tank oil initially in place revealed 19.511 mmstb, 73.576 mmstb and 19.169 mmstb for J100, K100 and L100 reservoirs respectively, indicate that they can be produced at significant profits. Two infill well placement locations were identified from petrophysical and structural characterization; one at the north central part of J100 reservoir and another at the North-Western part of K100 reservoir.
Fractured Identities of Women in Partition in Manto’s Short Stories ‘Cold Meat’ and ‘Open it!’
Authors: Gupta Priyanka , Dwivedi Amitabh Vikram
Published: October 2019

Saadat Hassan Manto chronicled the chaos that prevailed, during and after the separation of the subcontinent in 1947. No part of human existence remained untouched or taboo for him. Manto’s short stories debate about various issues and of them women issues are one of them. He sincerely brought out stories of prostitutes and pimps alike, just as he highlighted the subversive sexual slavery of the women of his times. His concerns on the socio-political issues, from local to global level are revealed. The focus of this paper will locate the simulated portico prevailing in the society related to women and their unsettling fractured identities in the society with respect to post colonial aspect.  This paper primarily discusses about these two short stories Cold meat and Open it with reference to the women’s position. The splintered identities of women are taken into consideration and the study of two different short stories is premeditated in this paper.
Employees Attitude towards E-Learning in Banking Sector -An Empirical Study of Shivamogga District
Authors: Dr.Mamatha.S.M  , Honnali Mr. Panduranganagouda
Published: October 2019

E-learning has become a global phenomenon and it is the central theme of many industries and organizations for the additional method of training which can complement traditional methods of learning. The practices of E-learning and Learning management system (LMS) in the banking sectormake the drastic changes in the employee performance and their knowledge regarding job in the modern banking structure. This study provides a comprehensive body of knowledge about LMS and e-learning, in general, within the public and private bank in India. The main objective of this paper to understand and analyze the attitude of employeestowards E-learning practices in banking sector in Shivamogga district.
An Empirical Evidence of Global Warming and its impact on India’s Agricultural Production
Authors: Prema Dr.P. , Kanchana Ms.R.
Published: October 2019

India is a large country with all types of climates and different kinds of soil requiring different types of farming. Most of the agricultural land in India is dependent on rainfall for irrigation. India has about 15 Agro-climatic zones with different types of farming methods and crops. As most of the population is dependent on agriculture and two-third of the country depend on monsoon rains to aid in agriculture, any change in frequency of the rains will affect these areas critically. Assessment of the effects of global climate changes on agriculture might help to properly anticipate and adapt farming to maximize agricultural production. At the same time agriculture has been shown significant effects on climate change, primarily through the production and release of greenhouse gases such as carbon dioxide, methane, and nitrous oxide. The impact of climate change on agriculture could result in problems like food security and may threaten the livelihood on which much of the population depends. Climate change can affect crop yields ( both positively and negatively), as well as the types of crop that can be grown in certain areas, by impacting agricultural inputs such as water for irrigation, amounts of solar radiation that affect plant growth, as well as prevalence of pests. The impact of climate change on wheat showed that its yield decreased due to the adverse effects of temperature during grain ﬁlling and maturity stages of the growth. The results of this study indicate that crop characteristics such as sensitivity of grain ﬁlling duration to temperature, play a major role in determining the effects of climate change on crop productivity. Several studies projected increase or decrease in yields of cereal crops, oilseed and pulses crops depending on interaction of temperature and CO2 changes in India. The present study has selected a thirteen years period from 2000 – 2012. .
Start-up Awareness and Access toFinance: The Case of South African SMEs
Authors: N H Bamata  , K K Govender
Published: October 2019

Start-up entrepreneurs in South Africa do not move from the stage of existence and survival to growth to maturity/ In order for Start-up businesses to have a competitive advantage, they have to grow beyond the survival stage and keep on growing. Despite the availability of external finance, access to finance from banks has been identified as the main challenge to the establishment and growth of SME Start-ups in South Africa. The aim of this study is toinvestigate the determinants of start-up awareness to improve access to finance from banks by Start-up entrepreneurs in Pietermaritzburg, the capital city of KwaZulu-Natal province in South Africa. Data was collected through self-administrated questionnaires from a random sample of 253 respondents being members of the Chamber of Commerce in the capital city of one of the largest provinces in South Africa.The results from inferential statistical analysis revealed that start-up awareness factors such as conducting a feasibility study, finding a good location, knowing the amount of seed capital needed, developing a business strategy, a business plan, and business model as well as the source of seed capital, are significant determinants of access to bank financing by start-up entrepreneurs.Thus, entrepreneurs should understand the determinants of Start-up awareness in order to improve their ability to access bank finance.
A Study On Determining The Various Human Resources Involved In The Process And Procedures Of Organ Transplantation – Literature Review
Authors: KALAISELVI M. , KARUPPAIYAN S.
Published: October 2019

Human Resource Management  include right from lower, middle and top level management and all unskilled, skilled, clerical, technical, managerial and professional employees of an organisation. A successful health care management is achieved by a proper human resources planning. The study will reveals the various human resources involved in the process of organ transplantation. The process involved in organ procurement and transplantation is very complex that requires multidisciplinary coordination and teamwork.
Impact of Environmental Pollution and Protection Through Hygiene Promotion- A Sociological Study
Authors: Maharajan K. , Muthukumar P.K.
Published: October 2019

This paper deals with hygiene promotion measures. It outlines the hygiene promotion education and its importance. This paper makes a special note on diarrhoeal morbiditary and mortality and mode of transmission. This paper sheds light on accurate of good hygiene practice hygiene promotion measures and cost effectiveness of hygiene promotion. This paper concludes with some interesting findings.
O ocidente como responsável pelas crises da Ucrânia e da Geórgia
Authors: Campos Fred Leite Siqueira , Lobo Iuri Endo , Azevedo Beatriz Marcondes de
Published: October 2019

Em 2008, a Rússia interveio na Geórgia e reconheceu a independência das províncias separatistas da Ossétia do Sul e da Abecásia. Em 2014, a Rússia promoveu ação militar na Ucrânia e anexou a península da Crimeia ao território russo. Tomando como foco de análise estes dois fatos históricos, o presente trabalho tem como objetivo comparar as crises da Ucrânia e da Geórgia, a fim de demonstrar que ambas as crises têm suas responsabilidades dadas às ações do Ocidente. Em termos metodológicos, foi realizada uma análise comparativa entre as duas crises, utilizando-se o ponto de vista do pensamento realista e da teoria do realismo ofensivo. Como resultado da presente análise, constatou-se que as variáveis – com base nas quais Mearsheimer (2014) afirma que a crise da Ucrânia foi responsabilidade do Ocidente –manifestaram-se na Geórgia. Desse modo, a conclusão desse trabalho indica que a crise da Geórgia, de 2008, também teve o Ocidente como seu principal responsável. Essa conclusão está baseada na existência das variáveis: avanço da OTAN; promoção da “democracia” Ocidental; e expansão da União Europeia, apresentadas por Mearsheimer (2001; 2014), a presença da tríade comportamental (medo, autoajuda e maximização do poder) e as estratégias (de defesa) russas às regiões em estudo. Nesse sentido, e diferentemente do que é afirmado pelo Ocidente, a Rússia teve, em ambas as crises, papel eminentemente defensivo.