bluuebunny/crossref_metadata_2025 huggingface dataset:
Fabrication of platelet-rich plasma/silica scaffolds for bone tissue engineering
Authors: Sani Farnaz , Mehdipour Fatemeh , Talaei-Khozani Tahereh , Sani Mahsa , Razban Vahid
Published: September 2017

Silica (SiO2) and platelet-rich plasma are two biomaterials that have profound impacts on ossification. The objective of this study was to fabricate and characterize a platelet-rich plasma/silica composite to be used in bone repair. Human platelet-rich plasma was mixed with nanosilica and induced to form gel by calcium chloride (CaCl2) supplementation. To cross-link the gel, glutaraldehyde was applied to the scaffolds. Fourier transform infrared spectroscopy was performed to show any chemical change in the scaffold ingredients. The scanning electron microscopy, energy-dispersive spectroscopy and inductively coupled plasma mass spectrophotometry methods were used to characterize the fabricated scaffolds. MG63 cell line viability was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The osteoblast functions were also evaluated by measuring alkaline phosphatase activity and alizarin red S staining. Scanning electron microscopy micrographs and energy-dispersive spectroscopy showed that silica nanoparticles were trapped within the fibrin fibers in both cross-linked and non-cross-linked scaffolds. Inductively coupled plasma mass spectrophotometry revealed that the cross-linking procedure did not influence the amount of silica released into the medium. Silica-containing scaffolds provided a superior environment for cell proliferation and osteoblast activity. Platelet-rich plasma/silica scaffold can be considered as an autologous vehicle with appropriate features for bone tissue engineering.
Transitar por América Latina: redes, trabajo y sexualidad
Authors: García Díaz Lidia Raquel
Published: September 2017

La sexualidad, al ser una estructura histórica y política que permite la configuración de normas y leyes sociales así como la conformación de subjetividades individuales, es un elemento fundamental en el análisis de los estudios migratorios. Este artículo examina, de forma cualitativa, el transitar trans femenino ecuatoriano a nivel local y regional. El papel de la sexualidad en el establecimiento de redes migratorias, los cambios corporales y su inserción en el trabajo sexual son los principales elementos que aborda este estudio, los cuales se entrecruzan a lo largo del viaje migratorio de la población trans femenina que reside en Quito.
La dimensión acústica de la protesta social: apuntes desde una etnografía sonora
Authors: Martin José Luis , Fernández Trejo Santiago
Published: September 2017

En este artículo se analizan las prácticas sonoras perceptibles en las marchas de protesta, desde un enfoque interaccional de la comunicación. Se plantea una propuesta interdisciplinar para el desarrollo metodológico de una etnografía sonora y se presentan los resultados de su aplicación en el contexto de las manifestaciones por la desaparición forzada de los 43 normalistas de Ayotzinapa, Guerrero, en México. El estudio cuestiona los modos sociales de sonar, como materialización acústica de los procesos comunicacionales en entornos sonoros específicos.
Rótulos, etnografía y curadurías en el Museo Histórico de la Policía Nacional, Bogotá
Authors: Kraus Daniel , Andrade X. , Forero Ana María , Salinas Mauricio
Published: September 2017

Ensayo visual "Rótulos, etnografía y curadurías en el Museo Histórico de la Policía Nacional, Bogotá"
SOCIODEMOGRAFIA DOS AGRICULTORES FAMILIARES: CONTRIBUIÇÕES DA FEIRA LIVRE PARA SUSTENTAÇÃO DO SISTEMA
Authors: Pavan Daiane , Santos Junior Silvio
Published: September 2017

Nas últimas décadas, a agricultura familiar assumiu importância estratégica para o desenvolvimento sustentável. No Brasil, a partir da década de 1990, a classe passou a ser reconhecida e programas institucionais foram desenvolvidos. Neste contexto o município de Chapecó (SC), na tentativa de mitigar o êxodo rural o poder público, agricultores e consumidores, em 1998, criaram as feiras livres, nas quais os agricultores tiveram a oportunidade de comercializar seus produtos diretamente aos consumidores. Assim, esta pesquisa teve como objetivo geral analisar as características sociodemográficas do feirante e identificar as contribuições das feiras livre de Chapecó (SC) para o fortalecimento da agricultura familiar. A pesquisa caracteriza-se como qualitativa de caráter descritivo, sendo a coleta de dados realizada por meio de entrevista semiestruturada, com 12 famílias de agricultores feirantes, bem como a observação não participativa nas feiras livres. A interpretação dos dados ocorreu mediante a análise narrativa. Os achados revelam que as propriedades se caracterizam como minifúndios, com uma força de trabalho envelhecida e número de integrantes reduzido. Revelou também que as feiras livres representam uma alternativa para diversificação de renda e produção, acesso aos mercados e permanência na atividade rural.
AVALIAÇÃO DO DESEMPENHO DE UM “SMALL NON-ROAD ENGINE” OPERANDO COM MISTURAS GASOLINA E ETANOL
Authors: Schirmer Waldir Nagel , Olanyk Luciano Zart , Ribeiro Camilo Bastos
Published: September 2017

O presente trabalho avaliou o desempenho de consumo de combustível e as emissões dos gases poluentes monóxido de carbono (CO), hidrocarbonetos (HC) e óxidos de nitrogênio (NOx) provenientes da combustão de combustíveis formulados a partir de gasolina pura e misturada a 5, 10, 15, 20 e 25% v/v de etanol anidro. Para tanto, empregou-se um “small non-road engine (SNRE)”, monocilíndrico, 4 tempos, de 196 cc, acoplado a um gerador de potência máxima de 2.400 W, operando sob cargas de 0, 600, 1.200, 1.800 e 2.000 W. Para determinação das emissões gasosas, utilizou-se um analisador automático similar aos normalmente usados em inspeções veiculares. Os resultados mostraram que, com o gradual aumento de etanol à gasolina, as reduções nas concentrações de CO, HC e NOx alcançaram 75, 67, e 7% para a menor carga (0 W) e 189, 3, e 43% para a maior carga (2000 W), respectivamente, apesar de ser verificado aumento médio de 10% no consumo mássico de combustível.
La debilidad financiera y el comportamiento depredador en la financiación de la deuda
Authors: Fernández Ruiz Jorge
Published: September 2017

Una teoría de la depredación ampliamente conocida sostiene que las empresas con recursos financieros abundantes pueden realizar prácticas depredadoras para expulsar del mercado a sus competidores financieramente débiles. Sin embargo, un competidor financieramente débil que actúe de modo racional debe tomar en cuenta esta amenaza depredadora cuando elabore sus pasivos financieros. En este artículo examinamos cómo responde de manera óptima una empresa financieramente débil que se financia con deuda ante una amenaza depredadora, cuando existe selección adversa en los mercados financieros. Más precisamente, investigamos cómo cambia la estructura de maduración de su deuda ante tal amenaza. Mostramos que su respuesta óptima puede o no disuadir el comportamiento depredador. En caso de disuasión, ésta se logra remplazando deuda de corto plazo por la de largo plazo. En caso de que la empresa financieramente débil opte por no disuadir el comportamiento depredador, se financiará de manera exclusiva con deuda de corto plazo.
Pertumbuhan Stek Krisan (Chrysanthemum morifolium (L.) Ramat) pada Berbagai Media Kultur In Vitro
Authors: Kristianti Adven , Kamsinah Kamsinah , Dwiati Murni
Published: September 2017

Chrysanthemum (Chrysanthemum morifolium (L.) Ramat is one of ornamental plant commodities with high aesthetic value. As a consequence of increasing demand, the availability of seeds in adequate number is needed with method in vitro. This study aims to find out the effect of various in vitro culture media on the growth of chrysanthemum explants and to determine alternative media other than MS for in vitro growth of chrysanthemum explants. Experimental method arranged in a Randomized Complete Block Design (RCBD) with four treatments and four blocks is applied. The treatments are Murashige and Skoog  (MS), Vacint and Went  (V&W), Knudson  and   modified media, while node position serves as block. Time of shoot emergence, shoot length, number of leaves on each shoot, and number of roots are measured. Data are analyzed using Analysis of Variance (F test) with confidence intervals of 95% and 99%. Least Significant Difference (LSD) test is applied when significant difference among variables is observed. Culture media shows significant effect on chrysanthemum explant in vitro growth. Knudson media is found as an alternative media besides MS sufficiently suitable to increase chrysanthemum explants in vitro growth.
Deteksi Resistensi Amoxicillin Helicobacter pylori pada Pasien Dispepsia
Authors: Sulistiyawati Indah , Arinton I Gede , Pramono Hendro
Published: September 2017

Amoxicillin is one of the antibiotics that commonly used on treatment of H. pylori infection. pbp1A gene mutation in H. pylori is a dominant cause of amoxicillin resistance. This study was aimed to evaluate the presence of H. pylori in patients with dyspepsia by using non-invasive method i.e. H. pylori stool antigen (HPSA) and invasive method i.e. pbp1A gene amplification, and also evaluate the amoxicillin resistance of H. pylori by assessing the pbp1A gene mutations. The samples were  26 faeces and 26 gastric biopsies of patients with dyspepsia from the Internal Disease of Prof. Dr. Margono Soekardjo Hospital in Purwokerto. DNA amplification performed by using polymerase chain reaction (PCR) to detect the presence of amoxicillin resistance encoding gene i.e. penicillin binding protein (pbp1A). Sequencing of the DNA sample was performed at the First Base Malaysian Company, to analyze the existence of a point mutation. DNA sequencing analysis of 12 samples showed the presence of a mutations in pbp1A gene from 2 samples, in the third motive of pbp i.e. amino acid changes, Alanine 599 substituted to Threonin and Threonin 592 to Alanine. Those mutations become a dominant risk factor for resistance of H. pylori, toward the bacterial peptidoglycan synthesis. In this research, it was known that the detection of H. pylori infection by using PCR remains more accurate and specific method. The presence of H. pylori mutant strains in this study may becomes the risk factors of resistance to amoxicillin treatment.
Karakteristik Morfologi Mycobacterium tuberculosis yang Terpapar Obat Anti TB Isoniazid (INH) secara Morfologi
Authors: Widodo Widodo , Irianto Agus , Pramono Hendro
Published: September 2017

INH mempunyai peranan dalam menghambat sintesis asam mikolat yang merupakan komponen pembentuk dinding sel M. tuberculosis. Mengetahui pengaruh pemaparan obat INH terhadap karakteristik M. tuberculosis secara morfologi sel. Metode penelitian eksperimen dengan menggunakan Rancangan percobaan acak Lengkap dengan variasi waktu pemaparan 24 jam, 48 jam, 72 jam dan 96 jam pada konsentrasi INH 0,5 μg/ml dengan jumlah ulangan 6. Hasil penelitian menunjukkan ada pengaruh pada masing-masing perlakuan INH 0,5 μg/ml terhadap karakteristik M. tuberculosis, pada pemaparan 24 jam diperoleh persentase pertumbuhan 18,25%,  ukuran rerata sel 1,64 x 0,35 µm, persentase kerusakan sel 28,1%. Pada pemaparan 48 jam diperoleh persentase pertumbuhan sel  7,9%,  ukuran rerata sel 1,64 x 0,36 µm, persentase kerusakan sel 41%, pada pemaparan 72 jam diperoleh persentase pertumbuhan sel 7,0%,  ukuran rerata sel 1,64 x 0,32 µm, persentase kerusakan sel 53,4%, pada pemaparan 96 jam diperoleh persentase pertumbuhan sel 1,6%, ukuran rerata sel 1,61 x 0,29 µm,  persentase kerusakan sel 57%. Perubahan morfologi sel yang terpapar INH 0,5 μg/ml pada permukaan sel terjadi kerutan dan penyusutan panjang sel setelah regenerasi, permukaan sel mulai kasar dan sedikit ada kerusakan, sel mengalami lisis dan sebagian sel berbentuk oval , sel mengalami perubahan bentuk menjadi kokus. karakteristik M. tuberculosis yang terpapar INH 0,5 µg/ml mengalami perubahan morfologi sel, menjadi lebih pendek dan perubahan bentuk dari batang menjadi kokus, namun perubahan morfologi ini tidak terjadi secara permanen pada generasi berikutnya.Kata kunci       : M. tuberculosis, INH, Morfologi,
Perkembangan Awal Protocorm Anggrek Phalaenopsis amabilis secara In Vitro setelah Penambahan Zat Pengatur Tumbuh α-Naphtaleneacetic Acid dan Thidiazuron
Authors: Ningrum Eka Fitriana Candra , Rosyidi Ikhsanudin Nur , Puspasari Rizka Riliant , Semiarti Endang
Published: September 2017

Phalaenopsis amabilis (L.) Blume merupakan salah satu anggrek alam dengan nilai komersial yang tinggi. Keberadaannya di alam semakin sukar dijumpai akibat eksploitasi berlebihan dan kerusakan hutan. Selain itu budidaya anggrek ini cukup sulit dilakukan karena biji bersifat mikroskopis dan tidak memiliki endosperm, sehingga perlu dilakukan kultur  in vitro. Dalam budidaya secara in vitro diperlukan medium pendukung pertumbuhan anggrek secara optimal misalnya dengan penambahan Zat Pengatur Tumbuh (ZPT) dari golongan auksin dan sitokinin. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan ZPT tersebut terhadap perkembangan protokorm (pertumbuhan embrio anggrek) P. amabilis secara in vitro dari aspek morfologi dan anatomi. Penelitian dilakukan di Laboratorium Bioteknologi dan Laboratorium Struktur Perkembangan Tumbuhan. Digunakan protokorm anggrek P. amabilis berumur 2 bulan. Protokorm disubkultur pada medium NP dengan kombinasi ZPT NAA dan TDZ pada berbagai konsentrasi dan diinkubasi pada ruangan dengan kelembaban tinggi, suhu 250C.  Kemudian diamati protokorm anggrek selama 2 minggu yang mencakup persentase pertumbuhan, persentase protokorm yang membentuk tunas dan absorbing hair. Pembuatan preparat anatomi dilakukan dengan mengambil protokorm setiap minggunya, disimpan dalam larutan alkohol 70% dan dibuat preparat anatomi menggunakan metode Parafin dengan pewarnaan safranin. Hasil penelitian menunjukkan pada penambahan NAA dan TDZ pertumbuhan protokorm mencapai 100%. Persentase protokorm yang membentuk tunas berturut turut (0:0, 0.2:0, 0:0.5, 0.2:0.5, 0:1, dan 0.2:1) ppm adalah 24%, 22%, 32%, 40%, 40% dan 38% sedangkan untuk pengamatan protokorm yang membentuk absorbing hair sebesar 10%, 18%, 14%, 24%, 16%, dan 0%. Untuk diameter sel berukuran 39.2±0.47µm, 44.4±0.97µm, 39.08±0.5µm, 38.83±0.2µm,39.5±0.39µm dan 39.75±0.28µm. Sehingga dapat disimpulkan medium yang paling optimal dalam pertumbuhan anggrek P. amabilis secara in vitro adalah medium NP dengan kombinasi NAA dan TDZ (0.2 : 0.5) ppm.Kata kunci : Anatomi, Kultur In Vitro, Morfologi, Phalaenopsis amabilis
Soft Smart Garments for Lower Limb Joint Position Analysis
Authors: Totaro Massimo , Mondini Alessio , Lucarotti Chiara , Poliero Tommaso , Cairoli Giovanni , Ortiz Jesus , Beccai Lucia
Published: September 2017

Detection of human movement requires lightweight, flexible systems to detect mechanical parameters (like strain and pressure) not interfering with user activity, and that he/she can wear comfortably. In this work we address such multifaceted challenge with the development of smart garments for lower limb motion detection, like a textile kneepad and anklet in which soft sensors and readout electronics are embedded for detecting movement of the specific joint. Stretchable capacitive sensors with a three-electrode configuration are built combining conductive textiles and elastomeric layers, and distributed at knee and ankle. They show an excellent behavior in the ~30% strain range, hence the correlation between their responses and the optically tracked Euler angles is allowed for basic lower limb movements. Bending during knee flexion/extension is detected, and it is discriminated from any external contact by implementing in real time a low computational algorithm. The smart anklet is designed to address joint motion detection in and off the sagittal plane. In this work, ankle dorsi/plantar flexion, adduction/abduction, and rotation are retrieved. Both smart garments show a high accuracy in movement detection, with a RMSE less than 4° in the worst case.
PENGEMBANGAN BAHAN BELAJAR â€œPENDIDIKAN KARAKATER ANAK USIA SEKOLAH DASARâ€ UNTUK ORANG TUA
Authors: Suprayekti Suprayekti
Published: September 2017

Character education aims at improving religiuos, social, and emotional intelligence. To meet the aim not only the school is responsible but also the parents are responsible for building the childrenâ€™s character. The purpose of this research, therefore, is to produce the design development of character value determined by the parents and the learning material appearnce. Applying development method, the research was conducted in Jakarta as from April through December 2012. As a development research, it included the development design, prototype, and evaluation of the learning materials. Data were collected by observation, interview, and questionair. The respondents, selected by accidental sampling technique, consisted of 10 parents and 10 primary school teachers. The result of the research showed the religious value was choosen as the main value of character education for the primary school students of grade 1-3 and honesty value for grade 4 -5.
The Influence of Arthritis in Other Major Joints and the Spine on the One-Year Outcome of Total Hip Replacement
Authors: Huber Joerg , Dieppe Paul , Dreinhoefer Karsten , Günther Klaus-Peter , Judge Andrew
Published: September 2017

Background:

Although arthritis in other affected major joints and back pain are known to lead to worse outcomes following total hip replacement, to our knowledge, these risk factors have not previously been operationalized as a musculoskeletal morbidity profile. The aim of this study was to measure the influence of other major joints and the spine (as grades of musculoskeletal morbidity) on the 1-year outcome of primary total hip replacement.

Methods:

The EUROHIP study consists of 1,327 patients undergoing primary total hip replacement for arthritis across 20 European orthopaedic centers. The primary outcome was the responder rate at 12 months calculated with the relative effect per patient for total hip replacement using the total Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score. The primary predictor of interest was different combinations of arthritis of major joints and the spine grouped into 4 musculoskeletal morbidity grades: 1 (single major joint), 2 (multiple major joints), 3 (single major joint and spine), and 4 (multiple major joints and spine). The confounders adjusted for were age, sex, body mass index, living situation, years of hip pain, American Society of Anesthesiologists (ASA) class, anxiety or depression, and preoperative WOMAC subscales.

Results:

For this analysis, 845 patients were included with complete 12-month follow-up WOMAC scores. The mean patient age was 65.7 years, and 55.2% of patients were female.

Conclusions:

The involvement of other major joints and the spine assessed as 1 of 4 musculoskeletal morbidity grades had a strong influence on the 1-year outcome after total hip replacement. The effect size was large compared with other risk factors. Even so, the majority of patients in musculoskeletal morbidity grade 4 had favorable outcomes from the surgical procedure (>74% response to surgical procedures).

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
A Refueling Scheme Optimization Model for the Voyage Charter with Fuel Price Fluctuation and Ship Deployment Consideration
Authors: Jia Peng , Zhang Weilun , Wenhao E , Sun Xueshan
Published: September 2017

Due to the long operation cycle of maritime transportation and frequent fluctuations of the bunker fuel price, the refueling expenditure of a chartered ship at different time or ports of call make significant difference. From the perspective of shipping company, an optimal set of refueling schemes for a ship fleet operating on different voyage charter routes is an important decision. To address this issue, this paper presents an approach to optimize the refueling scheme and the ship deployment simultaneously with considering the trend of fuel price fluctuations. Firstly, an ARMA model is applied to forecast a time serials of the fuel prices. Then a mixed-integer nonlinear programming model is proposed to maximize total operating profit of the shipping company. Finally, a case study on a charter company with three bulk carriers and three voyage charter routes is conducted. The results show that the optimal solution saves the cost of 437,900 USD compared with the traditional refueling scheme, and verify the rationality and validity of the model.
Emergence of curved light-cones in a class of inhomogeneous Luttinger liquids
Authors: Dubail Jerome , Stéphan Jean-Marie , Calabrese Pasquale
Published: September 2017

The light-cone spreading of entanglement and correlation is a
fundamental and ubiquitous feature of homogeneous extended quantum
systems. Here we point out that a class of inhomogenous Luttinger
liquids (those with a uniform Luttinger parameter
KK)
at low energy display the universal phenomenon of curved light cones:
gapless excitations propagate along the null geodesics of the metric
ds^2 = dx^2 - v(x)^2 dt^2ds2=dx2−v(x)2dt2,
with v(x)v(x)
being the calculable spatial dependent velocity induced by the
inhomogeneity. We confirm our findings with explicit analytic and
numerical calculations both in- and out-of-equilibrium for a
Tonks-Girardeau gas in a harmonic potential and in lattice systems with
artificially tuned hamiltonian density.
Dosimetría Química de irradiadores gamma de 60Co y 137Cs de uso semi-industrial e investigación
Authors: Albarrán Sánchez María Guadalupe , Mendoza Villavicencio Edith , Cruz Zaragoza Epifanio
Published: September 2017

Se realizó la dosimetría en campos de radiación de 60Co y de 137Cs, correspondientes al irradiador Gammabeam 651PT, recargado con nuevas barras de 60Co y de un nuevo irradiador autoblindado Gammacell-3000 Elan de 137Cs que fue adquirido con fondos CONACYT. La radiación gamma de 60Co del Gammabeam, se utiliza para esterilización de productos industriales y para investigación en cambios de propiedades químicas y físicas de muestras sólidas y acuosas, de interés en la Universidad Nacional Autónoma de México (UNAM). Sin embargo, la diferencia de energía entre los fotones gamma del 60Co (1.17, 1.33 MeV) y del 137Cs (0.66 MeV) hace interesantes los cambios en las muestras de investigación, tales como polímeros, nuevos materiales dosimétricos, compuestos orgánicos, etc., que se investigan actualmente en el Instituto de Ciencias Nucleares de la UNAM. Para utilizar los campos de radiación de los irradiadores, es importante determinar las dosis de exposición. En este trabajo, se informa la metodología llevada a cabo para la dosimetría de las fuentes de radiación gamma usando el dosímetro químico de Fricke. En este, se lleva a cabo la reacción de oxidación en medio ácido del ion ferroso a férrico. Los resultados en el Gammabeam muestran distribuciones de razones de dosis menores a 99 Gy/min en su cámara de irradiación. En el caso del irradiador de 137Cs se obtuvo la razón de dosis, 10.89 Gy/min, al centro de su cámara; los resultados obtenidos con la dosimetría realizada en nuestro laboratorio coincidieron satisfactoriamente con los certificados otorgados previamente por el proveedor del Gammacell-3000. Dado que las fuentes no son puntuales en los irradiadores, se determinaron las incertidumbres asociadas a las dosis. Los dos irradiadores presentan razones de dosis adecuadas para continuar apoyando a la investigación científica y ofrecer también el servicio de irradiación a escala semi-industrial.
Agricultura familiar y tecnología para la elaboración de piloncillo granulado en la comunidad de Aldzulup Poytzén, San Luis Potosí
Authors: Cuevas Reyes Venancio , Baca del Moral Julio , Borja Bravo Mercedes , Grass Ramírez José Fernando , Rivera Martínez Gerardo
Published: September 2017

El objetivo del estudio fue caracterizar a los productores de piloncillo con la finalidad de contribuir con información que permita conocer la importancia del uso de tecnología en la elaboración de piloncillo granulado en la comunidad de Aldzulup Poytzén, Tancanhuitz, San Luis Potosí. Mediante muestreo no probabilístico, fueron entrevistados 36 productores de piloncillo. El estudio de las variables escalares se realizó mediante análisis de varianza para comparación de medias y análisis de correlación. Se encontraron diferencias significativas (p<0.05) entre el nivel tecnológico de los productores de piloncillo (alto, medio y bajo). No obstante, no hubo diferencias en los niveles de producción obtenidos entre ellos. Existe una restrictiva vinculación al mercado motivada por factores de comercialización, que les dirige hacia la venta de piloncillo industrial; 97.22% de los productores venden este tipo de piloncillo. La agricultura familiar de los productores de piloncillo tiene una diversificación productiva en sus actividades relacionadas con la agricultura y ganadería (siembra de maíz, frijol, especies frutales, gallinas, porcinos). Se concluye que, la elaboración de piloncillo granulado, no se explica solo por el bajo nivel tecnológico, ya que este tipo de piloncillo es producido por los tres estratos. Además,  el estudio corrobora la diversificación de actividades productivas de la agricultura familiar como una estrategia de sostenimiento de este tipo de productores.
Estrategias, alianzas y portafolio de negocios para desarrollar la competitividad del cultivo del melón en la Comarca Lagunera, México
Authors: Espinoza Arellano José De Jesús , Ramírez Menchaca Adriana , Guerrero Ramos Liliana Angélica , López Chavarría Sandra
Published: September 2017

La Región Lagunera destaca como la zona melonera más importante de México con una superficie anual de alrededor de 5,000 hectáreas y una producción de 134,000 toneladas. La producción de esta región se ve amenazada por las importaciones, plagas, enfermedades, problemas de comercialización, altos costos de producción, falta de financiamiento y mayores exigencias de calidad por parte de las cadenas comerciales de tiendas de autoservicio. El objetivo de este trabajo fue proponer una serie de estrategias, alianzas y portafolio de negocios para mejorar la competitividad de la cadena productiva de melón en la Comarca Lagunera para evitar que sea desplazada por regiones competidoras del país y del extranjero.Método: En este trabajo se utilizó la metodología conocida como "Focus Group" o grupos de enfoque. Se contó con 27 participantes de los cuales 18 fueron productores de melón de la Comarca Lagunera, cinco técnicos, dos funcionarios de la Secretaría del Desarrollo Rural del gobierno del estado de Coahuila y dos representantes de empresas proveedoras de agro insumos. Se trabajó durante dos días en varias dinámicas basadas en formatos previamente elaborados por los responsables del proyecto. La información obtenida se clasificó habiéndose obtenido como resultado las fuerzas competitivas, las estrategias, las alianzas y el portafolio de negocios.Resultados: Se identificaron seis estrategias para el desarrollo de la competitividad, su  alcance, limitaciones y el tiempo que se estima para que se lleven a cabo. Las estrategias fueron: 1) capacitación técnica tendiente a obtener la certificación en inocuidad, 2) transferencia del paquete tecnológico, 3) gestión de recursos para financiar y asegurar la producción, 4) venta directa de melón a las cadenas comerciales de tiendas de autoservicio bajo el esquema de contrato, 5) establecer alianzas con instituciones académicas y de investigación y 6) establecimiento de alianzas con dependencias estatales y federales del Sector Agropecuario. En cuanto a las alianzas estas son específicas para cada estrategia destacando aquellas con dependencias federales y estatales; universidades y centros de investigación del sector agropecuario; instituciones de financiamiento y aseguramiento al campo y cadenas de tiendas de autoservicio. Finalmente, en el portafolio de negocios se propuso la creación de 1) una Gerencia comercializadora de melón, 2) una unión de crédito, 3) una agencia técnica de prestación de servicios profesionales y 4) una agencia comercializadora de equipos e insumos.Conclusión: Los resultados permitieron definir las principales estrategias, alianzas a realizar y el portafolio de negocios tendientes a desarrollar la productividad y competitividad del melón en la Comarca Lagunera. Su implementación dependerá de que los productores puedan organizarse y realizar las acciones aquí propuestas.
CDK5 and MAPT Gene Expression in Alzheimer's Disease Brain Samples
Authors: Fukasawa Josianne T. , de Labio Roger W. , Rasmussen Lucas T. , de Oliveira Lucieni C. , Chen Elizabeth , Villares Joao , Tureck Gustavo , de Arruda C. Smith Marilia , Payao Spencer L.M.
Published: September 2017

Background:

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by extracellular
amyloid plaque and neurofibrillary tangles in the brain. Studies have shown that neurons are
able to re-enter the cell cycle, but not enough to enable full replication. This leads to cell death and consequent
neurodegeneration.

Objective:

This study aimed to characterize the expression of the MAPT gene and CDK5 (the gene involved
in cell cycle regulation) in brain samples from patients with AD and controls.

Method:

The real-time-PCR technique was used to characterize 150 samples from three areas of the
brain (entorhinal cortex, auditory cortex, and hippocampus) of 26 AD patients and 24 healthy elderly
subjects.

Results:

When the brain samples were analyzed collectively, a decrease in CDK5 and MAPT gene expression
was found in AD patients. When each groups' samples were separated by area of the brain and
compared, significant differences were found in CDK5 expression in the hippocampus and the entorhinal
cortex. In both cases, mRNA was lower in the AD group (p=0.0001); however, the same analysis
using the MAPT gene revealed no significant statistical differences. No statistical differences were found
when gene expression was compared between the different regions of the brain within each group.

Conclusion:

These results may contribute to a better understanding of the involvement of CDK5 and
MAPT genes in AD in that they consider different areas of the brain that are affected differently based
on disease progression. The main challenge is to establish an effective therapy for this debilitating disease
in the future.
Representation of Bali in Tourism Advertisement Videos
Authors: Pratiwi Desak Putu Eka , Ayomi Putu Nur , Candra Komang Dian Puspita
Published: September 2017

Employing the Halliday’s theory of transitivity (1985), this study explores the representation of Balinese religion, culture, and nature in the Bali tourism advertisements videos produced by Bali’s Tourism Office, Bali Tourism Board and Ministry of Tourism of Indonesian Republic. The study reveals that the language of the advertisements mostly describes Bali in terms of material process, mental and relational process.  In terms of relational process, the beauty of Bali’s culture and nature is capitalized and portrayed as having certain kind of qualities: indicated by the use of adjectives typical to tourism advertisement such as mesmerizing, exotic, unique, etc. and it is constantly defined as paradise. A stark difference, however, occurs in terms of the participants of the clause. In the advertisement produced by the Bali Tourism office, the participants having the role of ‘actors’,  ‘senser’  and ‘carrier’,  are  Balinese people, Bali’s nature, and culture. The advertiser, taking the position of ‘we’, the Balinese, speaks to the world, explaining their home island, culture and belief.  On the other hand, the more ‘mainstream’ advertisements of Bali, give more to the prospective tourists, addressed as ‘you’.  Here the tourists are the actors and sensers of everything Bali can offer.  Bali is depicted as purely a travel destination that can satisfy the visitors and in the position of passive ‘phenomenon’ and ‘goals’. The advertisers are taking the position of ‘the travel agent’, the third party that promotes Bali
Teacher Education
Authors: Hepsiba Netala , EG Burugapudi , Rao Y.F.W. Prasada
Published: September 2017

The young today are facing a world in which communication and information revolution has led to changes in all spheres: scientific, technological, political, economic, social and cultural. To be able to prepare our young people face the future with confidence purpose and responsibility, the crucial role of teachers cannot be overemphasized. Given these multidimensional demands, Role of teachers also have to change. In the past, teachers used to be a major source of knowledge, the leader and educator of their students school life. The changes that took place in education have initiated to change the role of teachers. In this article we will examine how the role of teachers in the present society has to change.
Determinación mediante prueba cometa del daño genético causado por uso de ivermectina en vacas cebú (Bos taurus indicus)
Authors: Montes-Vergara Donicer , De la Ossa V Jaime , Pérez- Cordero Alexander
Published: September 2017

Objetivo. El objetivo del trabajo fue evaluar el daño genético causado por el uso de Ivermectina (IVM) en vacas cebú (Bos taurus indicus). Materiales y Métodos. Se tomaron quince vacas, con edad entre tres y cuatro años, peso promedio de 350 kilogramos, condición corporal entre 3 y 3,5. Se utilizaron tres grupos experimentales con cinco animales por grupo, los cuales se expusieron a la concentración de IVM al 1% y 3,15% más un grupo control (sin aplicación de IVM). La muestra sanguínea por animal fue realizada mediante punción venosa yugular o caudal medial con aguja para vacutainer ®, extrayéndose 8 ml de sangre. Las muestras sanguíneas fueron recolectadas a los 9, 18 y 27 días postratamiento. Resultados. La visualización de los cometas se realizaron con microscopio de fluorescencia, las células fueron evaluadas por medio de registro visual y por el software Comet Imagen. Se evidenció la presencia de núcleos con migración de ADN en todas las placas analizadas. Los valores de clasificación de los cometas, denotaron células con altos niveles de daño alto (grado 3). El índice de daño del ADN de los tratamientos al 1% y 3,15% fue significativo, al relacionarlo con el grupo control. Conclusión. Los resultados de este estudio evidenciaron el probable potencial genotóxico del uso de la IVM en ganado vacuno.
Effectiveness of a Web-Based Tailored Intervention With Virtual Assistants Promoting the Acceptability of HPV Vaccination Among Mothers of Invited Girls: Randomized Controlled Trial
Authors: Pot Mirjam , Paulussen Theo GWM , Ruiter Robert AC , Eekhout Iris , de Melker Hester E , Spoelstra Maxine EA , van Keulen Hilde M
Published: September 2017

Background

In 2010, the human papillomavirus (HPV) vaccination was introduced in the Dutch National Immunization Program for 12-year-old girls, aiming to reduce the incidence of cervical cancer in women. HPV vaccination uptake turned out to be lower than expected: 61% versus 70%, respectively. Mothers were shown to play the most important role in the immunization decision about this vaccination. They had also expressed their need for interactive personal information about the HPV vaccination over and above the existing universal general information. To improve the effectiveness of the existing education about the HPV vaccination, we systematically developed a Web-based tailored intervention with virtual assistants providing mothers of girls to be invited with tailored feedback on their decision making about the HPV vaccination.

Objective

The aim of this study was to evaluate the effectiveness of the Web-based tailored intervention for promoting HPV vaccination acceptance by means of a randomized controlled trial (RCT).

Methods

Mothers were recruited via the Dutch vaccination register (Praeventis) (n=36,000) and three Web-based panels (n=2483). Those who gave informed consent (N=8062) were randomly assigned to the control (n=4067) or intervention condition (n=3995). HPV vaccination uptake, as registered by Praeventis once the HPV vaccination round was completed, was used as the primary outcome. Secondary outcomes were differential scores across conditions between baseline (before the provided access to the new tailored intervention) and follow-up (just before the first vaccination) regarding the mothers’ degree of informed decision making (IDM), decisional conflict, and critical determinants of HPV vaccination uptake among which are intention, attitude, risk perception, and outcome beliefs.

Results

Intention-to-treat analysis (N=8062) showed a significant positive effect of the intervention on IDM, decisional conflict, and nearly all determinants of HPV vaccination uptake (P<.001). No effect was found on uptake (P=.60). This may be attributed to the overall high uptake rates in both conditions. Mothers evaluated the intervention as highly positive, including the website as well as the virtual assistants that were used to deliver the tailored feedback.

Conclusions

This computer-tailored intervention has the potential to improve HPV vaccination acceptability and IDM and to decrease decisional conflict among mothers of invited girls. Implications for future research are discussed.

Trial Registration

Trialregister.nl NTR4935; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=4935 (Archived by WebCite at http://www.webcitation.org/6srT7l9EM)
O SAGRADO EM CENA: representações televisuais da religiosidade mineira em "Terra de Minas"
Authors: Rocha Simone Maria , Meigre e Silva Marcos Vinicius E
Published: September 2017

Este artigo discute a figuração da religiosidade mineira no programa Terra de Minas, da TV Globo Minas. Entendendo a televisão como um objeto cultural, a análise do produto se sustenta nos preceitos dos Estudos Visuais e adota o estilo televisivo (BUTLER, 2010) como procedimento metodológico. A partir da coleta de dois pontos nodais (PUCCI JR, 2013), descrevemos e analisamos os fragmentos audiovisuais. Constata-se uma reverberação do discurso fundante da religiosidade mineira, dando a ver apenas o catolicismo, sem, no entanto, denotar apropriação dos templos para práticas ritualísticas por parte dos sujeitos. Desse modo, aspectos formais estiveram alinhados a diretrizes culturais já arraigadas no imaginário coletivo.
O RURAL NAS PERSPECTIVAS POLÍTICA E POÉTICA: uma breve análise de discurso
Authors: Maio Ana Maria Dantas de
Published: September 2017

Este estudo busca compreender como diferentes gêneros discursivos constroem sentido para o termo rural em dispositivos midiáticos. Para isso, aplica teorias e metodologias da análise de discurso (AD) de origem francesa para avaliar dois enunciados: uma postagem da ex-ministra da Agricultura Kátia Abreu no facebook e um poema de Manoel de Barros, publicado em livro e no site da revista Globo Rural. O rural do discurso político destaca o espaço de produção de alimentos, de trabalho duro e que precisa ser reconhecido pelo meio urbano; no discurso poético, o rural se apega à natureza: as aves, os rios, os animais. Os dois rurais se confrontam no mundo real, na medida em que o avanço de um deles representa a decadência do outro.
EXPERIÊNCIA GERACIONAL E IDENTIDADE DE FRONTEIRA: representações sociais sobre o rural amazônico
Authors: Fonseca de Castro Fabio
Published: September 2017

O artigo apresenta os resultados de uma pesquisa a respeito das representações sociais de um grupo de 38 alunos de um curso de Comunicação, com habilitação em Jornalismo, a respeito da “fronteira” amazônica. O grupo vive num espaço de ocupação territorial recente – a cidade de Parauapebas, sudeste do estado do Pará – e, em sua maioria, nasceu fora da região amazônica, reproduzindo a situação social identificada por diversos autores como sendo marcado pelas dinâmicas conflitivas e transitórias que caracterizam os processos sociais de ocupação do território amazônico. Procura-se compreender as visões de mundo, desses jovens, a respeito da sua inserção social, como jornalistas, no espaço amazônico. Para isso recolhe-se suas representações sociais a respeito do lugar em que vivem, indagando em que medida suas percepções de mundo e a respeito do rural amazônico são mediadas pelos tecidos intersubjetivos e midiáticos que conformam a “fronteira” amazônica como um espaço condenando à transição e à eventualidade.
Orçamento público e defesa nacional uma análise do orçamento de defesa brasileiro no período de 2000 a 2016
Authors: de Oliveira Matos Patrícia , Maryne Fingolo Julie , Schneider Raphael Augusto
Published: September 2017

O presente artigo realiza a ampliação e atualização de um estudo feito no ano de 2010, cujo objetivo era a análise do orçamento de defesa brasileiro na década 2000 a 2009. Após sete ciclos orçamentários (2010 a 2016) e modificações na conjuntura político-econômica brasileira, alterações no orçamento de defesa puderam ser constatadas. Observa- se que até o ano de 2014 houve melhoria quanto ao perfil da execução orçamentária do Ministério da Defesa (MD), com redução do percentual de encargos sociais e pessoal e elevação nos níveis de investimento e custeio. Porém, a crise orçamentária agravada no país a partir do ano de 2015 levou a um retorno dessa trajetória, revelando que o MD está ainda longe de ter superado a sua dificuldade estrutural de implementação de programas e realização de investimentos de longo prazo. Com relação aos gastos com defesa como % do PIB, não se verificam mudanças significativas. O Brasil continuou investindo em defesa proporcionalmente menos que vários países da América do Sul e dos BRICS.
Pensar las Ciencias Sociales escolares hoy: Una aproximación al campo aplicado de la enseñanza de la Historia en Colombia.
Authors: Betancur Cruz Luis Bernardo
Published: September 2017

El presente trabajo tiene como propósito llamar la atención ante la necesidad de ver el campo de la didáctica aplicada como un espacio de posibilidades de investigación y de desarrollo disciplinar de la didáctica misma, en tanto que, solo es posible transformar las prácticas de enseñanza de la Historia y las Ciencias Sociales escolares si maestros e investigadores se ocupan de la reflexión por las formas de enseñanza y proponen nuevas alternativas didácticas que le posibiliten a los profesores en ejercicio tener un abanico de posibilidades frente a las limitaciones a las que se enfrenta en su quehacer pedagógico.
Jhon Jaime Correa Ramírez et. al., 50/60 Una historia compartida. Investigación 50 años de Risaralda y 60 años de Comfamiliar. Mapa histórico cultural (Bogotá: Editorial Planeta, 2016), 349 PP.
Authors: Zapata Ospina Gerardo Andrés
Published: September 2017

N/A
Luis Felipe Marín Guzmán, "La otra cara de la electrificación en Caldas: Aproximación a la historia de los 70 años de SINTRACHEC-SINTRAELECOL" (tesis, Universidad de Caldas, Facultad de Ciencias Jurídicas y Sociales, Programa de Historia, 2015), 126 PP.
Authors: Ríos García Freddy Huberto
Published: September 2017

NA.
Wykorzystanie piezoelementów typu bender w pomiarach propagacji fali podłużnej w gruntach
Authors: Witowski Marcin , Godlewski Tomasz
Published: September 2017

The article describes the proprietary modification of the standard triaxial cell which allows for the measurement of the transit S and P wave using only one pair of piezoelectric transducers, while it was possible to take into account or minimize some of the negative phenomena in the commonly used test procedures BET. The results of the tests for different types of soils were also presented.
Diagnostic dilemmas of Rasmussen’s encephalitis in adults
Authors: Andjelic Sladjana
Published: September 2017

Introduction. Rasmussen?s encephalitis (RE) represents a rare, progressive, and inflammatory disease of the brain. Its detection in adults is a great challenge in clinical medicine. The aim of this paper is to highlight the diagnostic dilemma of RE in adults. Case outline. A 46-year-old woman was hospitalized due to persistent intense diffuse headaches, followed by nausea and the urge for vomiting that made her wake up during the night. On several occasions, she had transitory speech and memory disorders, and right hand numbness. Magnetic resonance (MR) imaging findings were as follows: occipitoparietal left in the deep white matter, as well as subcortical T2/flair white matter hyperintensities, T1-hypointense change involving the corpus callosum. MR spectroscopy showed an increased level of choline/creatinine (Cr) (2.12), a reduction of N-acetylaspartate/ Cr (1.27), an increased level of myo-inositol/Cr (1.20), and the presence of lactate. The patient refused lumbar puncture. Due to the described changes close to the speech center, cerebral biopsy was not taken. Even after five years, MR and spectroscopic findings are unchanged, while the clinical condition remains stable and unchanged. Conclusion. This case highlights the diagnostic dilemmas that arise in adult-onset RE and suggests that this diagnosis should be considered in patients of any age with the appropriate clinical picture.
Book Reviews
Authors: Hubbard Marlis , Coulter Joan
Published: September 2017

Book Reviews
Book Reviews
Authors: Piggott Sylvia
Published: September 2017

Book Reviews
THE STATISTICAL INFORMATION FUNCTION IN THE NATIONAL LIBRARY OF EDUCATION
Authors: Grant Vance
Published: September 2017

This article describes both the historical and current roles that educational statistics play in the National Center for Education Statistics and the more recently established National Library of Education. Discussed are several sources and publications that Dr. Grant has found to be the most helpful in his long career of responding to diverse and far-reaching queries on American education.He draws on population, economic and education surveys; census results; directories of U.S. school districts; reports on enrollment, staff and revenues of elementary, secondary and post-secondary institutions; and state assessments of educational progress in the U.S. In particular are cited 3 annual publications from the National Center for Education Statistics which provide inquirers with the mostwide-ranging and indispensable information on American education.
PRISON LIBRARIES INSIDE OUT
Authors: Singer Glen
Published: September 2017

Prison librarians work in a unique and challenging environment. The demands of the job are taxing since these positions require an exercise of a librarian's entire range of skills and knowledge as well as successful adaptation in the hierarchical structure of a correctional institution. This article provides an inside look at the institutional environment, prison security concerns, inmate patrons and library usage, library collections and services, and the day-to-day operation of a prison library and offersrecommendations for the professional development of such libraries.
YOU ARE HERE: A GUIDED TOUR OF THE OSHKOSH CORRECTIONAL INSTITUTION PRISON LIBRARY
Authors: Purifoy Randy
Published: September 2017

The Oshkosh Correctional Institution Library serves an inmate population of 1800 plus. Scheduled times averaging 18 hours
Ejournals in Education: Just Generating Excitement or Living up to the Promise?
Authors: Ganesh Tirupalavanam G.
Published: September 2017

The Internet makes scholarly electronic journals an opportune global mode of communication for scholarly exchange, where national and international borders are erased. The American Educational Research Association Special Interest Group, Communications among Researchers (AERA SIG CR) lists over one hundred electronic journals i n the field of education that are scholarly, peer-reviewed, full text and accessible without cost on the world wide web (see http://aera-cr.ed.asu.edu/links.html). Are these ejournals merely poor electronic imitations of print journals? Granted, the use of the Internet to publish peer-reviewed scholarship has the potential of democratizing access. But are such scholarly exchanges making effective use of the electronic medium? What innovative things can be done with new technology? How can electronic journals be preserved, used, and managed over time?
RESOURCES ON THE NET: Standards and Assessment
Authors: Wade Anne
Published: September 2017

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