bluuebunny/crossref_metadata_2025 huggingface dataset:
PRIMER REPORTE DE Colletotrichum coccodes EN FRUTOS DE TOMATE (Solanum lycopersicum) EN MÉXICO
Authors: Nieto-Angel Daniel , Almaraz-Sánchez Alejandra , Ayala-Escobar Victoria , Orozco-Santos Mario , Lara-Viveros Francisco M.
Published: February 2020

La antracnosis, ocasionada por Colletotrichum coccodes, afecta solanáceas y cucurbitáceas. En México este patógeno se ha reportado en el cultivo de papa (Solanum tuberosum L.), pero no en tomate (Solanum lycopersicum). En el año 2015 se observó la presencia del síntoma de lesiones hundidas con 7 % de incidencia en frutos de tomate de muestras en campo abierto del estado de Morelos, México. El objetivo del presente estudio fue identificar al agente causal del síntoma de antracnosis en el fruto mediante características morfológicas y moleculares. El material colectado se desinfestó y sembró en medio de cultivo PDA (papa-dextrosaagar) y agar-jugo V8, a partir de lesiones hundidas en las cuales se observó formación de esclerocios, setas, conidios cilíndricos, hialinos, sin septos, de 3.16 a 4.16 μm de ancho y de 12.5 a 17.2 μm de largo con apresorios lobulados. En la caracterización molecular, las secuencias obtenidas con los inciadores ITS5/ITS4 tuvieron una similitud del 100 % con Collectotrichum coccodes. Las pruebas de patogenicidad se realizaron en frutos sanos con o sin herida y se evaluó el tamaño de la lesión cada 48 h. Los síntomas iniciales aparecieron a las 72 h y a los 8 d presentaron lesiones desde 0.5 hasta 3.25 cm de diámetro. La prueba de Tukey detectó diferencias significativas entre métodos de inoculación. Este es el primer reporte de Collectotrichum coccodes que afecta frutos de tomate en México.
EVALUACIÓN DE LA ACTIVIDAD ANTIVIRULENCIA DE ACEITES ESENCIALES CONTRA Pseudomonas aeruginosa
Authors: Blanco-Hernández Araceli , García-Contreras Rodolfo , Sánchez-Fernández Rosa E. , Palma-Tenango Mariana , Cibrián-Tovar Juan , Muñoz-Cazares Naybi , Soto-Hernández R. Marcos , Padilla-Chacón Daniel , Prado-Galbarro F. Javier , Castillo-Juárez Israel
Published: February 2020

Los aceites esenciales (AE) se han descrito como agentes bactericidas; sin embargo, estudios in vitro indican que algunos de sus constituyentes volátiles a concentraciones subletales pueden inhibir o promover los sistemas de percepción de quórum (PQ) en Pseudomonas aeruginosa. Es necesario explorar el papel que pueden tener las mezclas de volátiles sobre la virulencia y el establecimiento de la bacteria en sistemas in vivo. Este estudio se llevó a cabo para evaluar las propiedades bactericidas y antivirulencia de AE obtenidos de Thymus vulgaris L., Cymbopogon citratus (DC.) Stapf y Tagetes lucida (Cav) contra P. aeruginosa. La actividad antivirulencia se evaluó mediante la inhibición de factores regulados por PQ, como son la producción de piocianina y la actividad de proteasa y elastasa; además, se determinó la composición de volátiles y su capacidad para evitar el establecimiento de la infección en un modelo de lesión en ratones. Los ensayos in vitro mostraron que el AE de T. vulgaris (AETV) únicamente exhibió actividad bactericida y el AE de T. lucida (AETL) redujo la producción de piocianina en 58 % a concentración subletal de 200 μg mL-1. Para el caso del AE de C. citratus no se registró un efecto bactericida a la máxima concentración evaluada (1000 μg mL-1), aunque redujo ligeramente la producción de piocianina (30 %). En los estudios in vivo únicamente el AETL y el Neosporin® (control positivo) interfirieron en el establecimiento de la bacteria, mientras que el AETV, contrario a lo esperado, lo favoreció, principalmente en zonas adyacentes a las lesiones. Se observó una correlación positiva entre el establecimiento de la bacteria y el número de constituyentes presentes en los AE. Estos resultados apoyan el uso de los AE evaluados para combatir P. aeruginosa y su posible aplicación en terapias antivirulencia.
RENDIMIENTO, COMPONENTES DE RENDIMIENTO Y HETEROSIS DE GERMOPLASMA DE MAÍZ ADAPTADO A VALLES ALTOS
Authors: Velasco-García Ángela M. , García-Zavala J. Jesús , Sahagún-Castellanos Jaime , Lobato-Ortiz Ricardo , Sánchez-Abarca Carlos , Marín-Montes Iván M.
Published: February 2020

Las variedades de maíz (Zea mays L.) introducidas de otras latitudes son una fuente de alelos favorables de utilidad en el mejoramiento genético, pero antes de ser empleados deben adaptarse a las condiciones climáticas de los ambientes de interés. El objetivo del presente estudio fue evaluar el rendimiento y sus componentes en poblaciones representativas de razas de maíz originarias del trópico y subtrópico adaptadas por selección masal recurrente a los Valles Altos de México,  así como la heterosis de sus cruzas interraciales para identificar genotipos útiles al mejoramiento genético del maíz para esos ambientes. Se evaluaron nueve poblaciones de maíz adaptado, ocho cruzas de dos poblaciones, una cruza de tres  poblaciones, generaciones avanzadas de las cruzas y cuatro testigos comerciales. Los genotipos se evaluaron en tres ambientes bajo un diseño experimental de bloques completos al azar con tres repeticiones. Se registró el rendimiento y sus  componentes. Se realizó análisis de varianza, comparación de medias (Tukey, P ≤ 0.05), análisis de correlación y se estimó la heterosis con respecto al progenitor medio. Hubo diferencias significativas (P ≤ 0.01) entre genotipos para todos los caracteres; los materiales adaptados rindieron de 3.89 a 11.71 t ha-1 y los testigos de 8.06 a 11.56 t ha-1. El rendimiento correlacionó con el índice de prolificidad (r = 0.67), longitud (r = 0.64), diámetro de mazorca (r = 0.65) y número de granos por hilera (r = 0.64). La heterosis promedio para rendimiento y sus componentes fluctuó de -5.30 a 6.53 %, con 5.68 % para rendimiento, donde la cruza F1 P9 × P8 presentó la mayor heterosis (26.19 %). Las poblaciones adaptadas y sus cruzas presentaron rendimientos similares a los testigos comerciales; por esto, pueden aprovecharse per se o como participantes para mejoramiento genético del maíz local de Valles Altos.
Algunos elementos para comprender el Brexit y su impacto en las teorías del regionalismo
Authors: Pose Nicolás
Published: February 2020

El 23 de junio de 2016 los británicos decidieron, mediante referéndum, abandonar la Unión Europea. Este artículo busca aportar algunos elementos para responder dos preguntas relacionadas: 1- ¿Cuáles fueron los factores que condujeron al Brexit?; 2- ¿Cómo impacta este fenómeno en las teorías sobre la conformación de acuerdos regionales? Para abordar el primer punto, se discute el rol de la representación de intereses en la convocatoria al referéndum, y posteriormente se analiza la construcción de dichos intereses desde la literatura que destaca el rol de las ideas. Mientras que sobre el segundo punto, se aborda el cuestionamiento que dicho evento supone para los planteos que sugieren un camino unidireccional hacia la conformación de acuerdos regionales, y por el contrario se enfatiza en la necesidad de contar con nuevos instrumentos teóricos que den cuenta de los resultados mixtos en términos de integración y desintegración que actualmente se observan en la economía  mundial.
espacios de la violencia. Un análisis visual de los polígonos PRONAPRED en Acapulco, Guerrero
Authors: Del Carmen Gallardo Ricardo
Published: February 2020

Este trabajo tiene como objetivo reflexionar sobre los contextos y las condiciones físicas de los espacios urbanos en que se desenvuelve la violencia en el puerto. A través de la fotografía se pretende responder a la cuestión sobre cuáles son los contextos en los que desarrolla la violencia en los espacios urbanos de Acapulco, y el efecto de la intervención estatal para reducir la delincuencia. El estudio permite ampliar las posibilidades de análisis de la violencia urbana desde un enfoque cualitativo. El análisis se basa en las fotografías obtenidas en los recorridos de campo de los cinco polígonos intervenidos por el PRONAPRED, y se enfoca en los contextos y los factores de riesgo y de protección (seguridad ciudadana).Se recurre a la teoría de las incivilidades o ventanas rotas para aproximarse a las relaciones entre los conceptos de espacio urbano, desorden y violencia.
actividades espaciales y la responsabilidad internacional
Authors: Castillo Argañaraz Luis Fernando
Published: February 2020

En las actividades espaciales actúan Estados, Organizaciones Internacionales y empresas en condiciones de igualdad en el espacio ultraterrestre. Estas actividades involucran problemas de responsabilidad. El objetivo de este artículo es analizar brevemente el régimen de responsabilidad internacional a la vista de la normativa del Derecho Internacional del Espacio vigente y si brinda repuestas a la actual coyuntura internacional con los distintos actores intervinientes.
Miradas actuales sobre jóvenes, estudio y trabajo. Un recorrido epistemológico
Authors: Neme Mariel Ayelén
Published: February 2020

Este trabajo propone un recorrido por una serie de investigaciones que se ocuparon de indagar los sentidos que los jóvenes otorgan al estudio y al trabajo. Si bien no podría decirse que constituye un “estado del arte” porque seguramente han quedado excluidos múltiples análisis valiosos en relación al tema, si podría afirmarse que consiste en una sistematización de algunas producciones. Éstas han sido seleccionadas desde un recorte temporal, ya que se abarca autores que se dedicaron a estudiar el tema a partir de los años 90, geográfico, porque principalmente se trata de investigaciones latinoamericanas y disciplinar, ya que los estudios provienen especialmente de la sociología, la educación y la antropología. Sin embargo, quizá la característica principal que comparten las investigaciones aquí seleccionadas es que poseen una misma perspectiva epistemológica: la consideración de la categoría juventud como una construcción social. De este modo, los estudios reunidos en este artículo piensan a las juventudes en plural, considerando que “ser joven” se define en relación con una multiplicidad de personas, grupos, actores, colectivos cuyas características y propiedades no se agotan en descripciones homogeneizantes sobre la juventud, sino que destacan la multiplicidad de contextos, actores y las maneras en que las juventudes son producidas.Las producciones aquí presentes invitan a la reflexión, a abrir el diálogo entre quienes hoy están produciendo conocimiento en la región y pretende ser un aporte para continuar reflexionando desde el intercambio y el diálogo con otros.
caso de Corazones Sucios ‘otra historia’ sobre la migración japonesa en Brasil
Authors: Loaiza Becerra Martha
Published: February 2020

Los contextos, imágenes e imaginaciones sobre los migrantes se narran y representan de diversas maneras. La literatura y el cine son dos de ellas. Ambas, ofrecen un retrato inmediato y completo que evade la complejidad del análisis. Este trabajo es un ejercicio crítico para clarificar la representación de un grupo de migrantes japoneses en Brasil y sus acciones, tras la rendición de Japón, como fenómeno histórico mediante las imágenes. Las fuentes principales son la película Corazones Sucios del director Vicente Amorim y la obra homónima de periodismo literario de Fernando Morais en la que se sustenta el guión. Las preguntas que se plantean son básicas: ¿Quién habla a quién? ¿Qué es lo que se dice? ¿Con qué intenciones se dice? ¿Cuáles son los resultados esperados? Particularmente, las conexiones entre los contextos espaciales, culturales e históricos del fenómeno narrado visualmente deben explicarse. La obra fílmica no es inocua. Por eso, deviene en evidencia histórica, convirtiéndose en discurso.
O modelo probabilístico Gumbel no ajustamento da vazão máxima do córrego Norete
Authors: Araújo Gracielle Antunes , Pinheiro Valeria Rosado , Silveira Kilder Cristiano , Simitan Patrick Langreney
Published: February 2020

O ciclo hidrológico alterou-se devido à degradação ambiental, comprometendo a vazão dos rios e, em particular, do Ribeirão Norete, o que afetou a produção agrícola nas propriedades rurais locais. Além disso, a falta de investimentos, de cultura e de políticas de conscientização ambiental resultou em um comportamento descontínuo do ciclo hidrológico. Assim, este trabalho é motivado pela necessidade de modelação da vazão do ribeirão Norete, a partir de um modelo probabilístico, que pode ser utilizado como ferramenta robusta de controle para aplicação em projetos de recuperação ambiental do Norete. Para o estudo, mensurou-se a vazão nas semanas em que houve precipitação e, a partir de uma análise estatística dos dados para o estudo e modelação da vazão máxima, observou-se sazonalidade acentuada, o que gerou o ajuste a um modelo de extremos. Concluiu-se que os dados seguem uma distribuição de probabilidade Gumbel de máximos, com parâmetros estimados pela máxima verossimilhança, obtidos com aplicação de métodos numéricos.
Caracterização de rejeito do beneficiamento de esmeraldas visando seu aproveitamento no setor agrícola
Authors: Freitas de Lima Isabela Cristina , Paulino Gleicia Miranda , Neves Ana Beatriz Vieira , Diniz Fernanda Da Fonseca
Published: February 2020

O reaproveitamento de rejeitos da mineração é uma alternativa que pode reduzir os passivos socioambientais associados a esta atividade, pois pode contribuir para a redução dos rejeitos estocados em barragens. O objetivo do trabalho foi realizar a caracterização de rejeito esmeraldífero, obtido de uma empresa de extração de esmeraldas, localizada em Itabira/MG e verificar a possibilidade do seu aproveitamento como subproduto para o setor agrícola. Foram realizadas análises granulométrica e mineralógica por difração de raios X e ensaio em Microscópio Eletrônico de Varredura. Cerca de 55,68% do rejeito foi considerado ultrafino. Foi observado alto percentual de mica-flogopita (46,9%), seguida de anfibólio (16,8%), cujos minerais contém magnésio (Mg) e potássio (K) em sua composição, os quais são elementos de interesse agronômico. Estudos que visem determinar a concentração de elementos químicos no rejeito e a sua liberação da estrutura mineral são necessários para confirmar a viabilidade de aproveitamento desse tipo de rejeito como subproduto para aplicação no setor agrícola.
¿Tienes lo que hay que tener?: Un análisis de los factores asociados con la intención de optar por una carrera en cirugía entre estudiantes de medicina.
Authors: Dominguez Torres Luis Carlos , Sierra Diego , Vega Valentin , Gómez Laura , Pacheco Maikel , Vargas Felipe
Published: February 2020

Introducción: Los cambios en la práctica profesional han transformado la intención de los estudiantes de medicina de optar por una carrera en cirugía. El propósito de este este estudio es evaluar los factores asociados con esta intención en un contexto de acelerada dinámica educativa y sanitaria. Métodos: Evaluamos la intención de los estudiantes de diez facultades de medicina en Colombia, y los factores asociados, mediante un cuestionario (escala de Likert) desarrollado a partir de la revisión de la literatura. Identificamos la asociación entre los factores y la intención mediante un análisis de regresión lineal. Los resultados de la regresión se presentan mediante coeficientes b (p<,05). Resultados: Un total de 252 estudiantes (65,87% mujeres) fueron incluidos en el análisis. El promedio de la intención fue 3,15 ± 1,34 (1-5). Los factores significativamente asociados fueron: identificación con el estilo de vida quirúrgico (b = 0,25); identificación con modelos (b = 0,18); atributos personales (b = 0,25) e identificación con la práctica profesional del cirujano (b = 0,16). No encontramos asociación significativa con el genero (mujeres en la especialidad), prestigio, dinámica del posgrado ni recompensa futura. Conclusión: Existe una intención moderada de elegir una carrera de cirugía entre estudiantes de medicina colombianos. Optar por esta carrera requiere atributos personales, modelos e identificación con el estilo de vida y práctica profesional del cirujano. Se requieren estudios cualitativos que exploren en profundidad estos resultados e intervenciones focalizadas a estimular esta intención entre los estudiantes.
“Resultados de un programa de recuperación mejorada (PRM) en cirugía colorrectal implementado en un hospital público chileno”
Authors: Martinez Mardones Monica Belen , Jacubovsky Rosenblit Ioram , Manriquez Alegria Erik , Castillo Ramos Richard , Cabrera Segura Manuel , Contreras Rivas Tomas , Kusanovich Borquez Rodrigo , Quezada-Diaz Felipe
Published: February 2020

Introducción: Los Programas de Recuperación Mejorada (PRM) en cirugía colorrectal disminuyen las complicaciones y acortan la estadía hospitalaria. La implementación de un PRM representa un desafío en nuestro sistema de salud público, dado la alta demanda y recursos limitados. El objetivo de este estudio fue evaluar el efecto en la estadía hospitalaria (EH) posterior a la implementación de un PRM en cirugía colorrectal electiva en un hospital público.Materiales y Métodos: Estudio retrospectivo, que incluyó pacientes entre 15 y 85 años operados electivamente de resecciones colorrectales en un hospital público entre 01 enero 2015 y 31 diciembre 2016. Se compararon dos grupos: (1) total de pacientes operados electivamente 1 año posterior a la implementación del PRM (post-PRM) y (2) total de pacientes operados electivamente un año previo a la implementación de PRM (pre-PRM), en términos de EH, reingresos, complicaciones y mortalidad a 30 días. Se realizó análisis de tiempo a evento para comparar la EH entre ambos grupos.Resultados: Un total de 144 pacientes fueron incluidos: 92 en el grupo post-PRM y 52 en el grupo pre-PRM. No hubo diferencias clínicas entre ambos grupos. La mediana de EH en el grupo post-PRM fue 2 días menor que en el grupo control (5 vs 7 días, test de log-rank, p=0,03). No hubo diferencia en complicaciones, reingresos ni mortalidad.Conclusión: La implementación de un PRM en cirugía colorrectal electiva en un hospital público se asocia a una disminución de la EH sin aumento de morbimortalidad.
Estimasi Kandungan Degadable Organic Carbon (DOC) pada Sampah Padat Kota yang masuk ke TPA Tanjung Belit di Kota Pasir Pangaraian Provinsi Riau
Authors: Dalilla Faizan , Umar Mursyidah , Ridwan Abrar
Published: February 2020

Degradable Organic Carbon (DOC) is the important element in forming CH4 in a pile of garbage in the landfill. The calculation of the potential of methane (CH4) in the landfill become the basis for control and management of GHG sourced from landfill. Estimated value of the content of DOC used calculating the weight of municipal solid waste that goes into landfill every day, counting the value of the fraction of the composition and content of dry matter of municipal solid waste by 11 components of garbage (food, paper / cardboard, gardens and parks, nappies, wood, textiles, rubber / leather, plastic, glass, metal and sampahlain etc.), to further multiplied by the fraction of a default value content of DOC in each component of trash and garbage in total. The calculations show that the total weight of waste that goes to landfill every day at 14594.05 kg / day with the largest waste composition in the form of junk food at 49.54%, followed by plastic waste (13.76%) and the smallest is junk metal composition by 1.18%. As for the fraction of the dry matter of the highest value was found in the garbage rubber / leather by 95.31%, followed by wood waste amounted to 78.61% and the smallest value was found in the garbage nappies by 17.43% and 21.23% of food waste. Based on calculations using the value of the total garbage in, the fraction of the composition and the fraction of dry material content and the fraction of DOC.
Forecasting Error Modelling for Improving PV Generation Prediction
Authors: Aprillia Happy , Yang Hong-Tzer
Published: February 2020

Accurate forecasting of Photovoltaic (PV) generation output is important in operation of high PV-penetrated power systems. In this paper, an adaptive uncertainty modelling method for forecasting error is proposed to improve the prediction accuracy of PV generation. The proposed method models the uncertainty in forecast data using Kernel Density Estimator and guarantee the provision of accurate expected value. Neural Network model is then constructed by the developed uncertainty model to forecast the PV output. The actual confidence level is traced within the day and injected as an input to the Neural Network model by observing the Mean Absolute Prediction Error (MAPE) and Unscaled Mean Bounded Relative Absolute Error (UMBRAE). The proposed method is tested with various significant changes of weather condition and proved to have promising performance on PV generation forecasting. Thus, the developed adaptive uncertainty model can be further used in power system planning that have high-penetration energy sources with stochastic behavior.
Analyze The Effects of Helical Baffles Angles Variation On Shell Side Heat Transfer Coefficient And Pressure Drop of Shell And Tube Heat Exchange
Authors: Rahmah Linta Atina , Sa’adiyah Devy Setiorini , Sulistijono Sulistijono
Published: February 2020

E-201-11 is one of the components of heat exchanger which serves to increase the temperature of distillated crude oil before it going into the furnace. The use of segmental baffles on the heat exchanger causes dead zone. The fouling phenomenon that arises from the deposition of the compound content in the service fluid in dead zone can result in leakage of the shell and tube. It affects the performance of heat exchanger and production efficiency. The use of discontinuous helical baffle on the shell side minimizes fouling. Research on the variation of helical baffle angle by using Bell-Delaware method resulted in performance value of heat transfer coefficient and pressure drop on the shell side. Fluid flow behavior on the shell side with helical baffle was analyzed by Computational Fluid Dynamics (CFD). The fluid flow velocity is a factor that affects the value of heat transfer coefficient and pressure drop. Heat exchanger with an angle of 10º have fluid flow velocity of 0,893m/s resulting in the highest heat transfer coefficient and pressure drop value compared to angles of 15º and 20º with values of 585.725W/m²K and 13642.395Pa. The heat exchanger with helical baffle at 10° helix angle presents the best performance among the others variant helical baffles
Feynman Path Integral in Multiple-Slit and its Simulation
Authors: Hadiningrat Mahendra Satria
Published: February 2020

In this article we hold on an analytic solution of the well-known cases of difraction and interference of electrons through one and two slits (simply that, the one-dimensional case is assumed only). In addition, we hold an approximations of the electron distribution which offer the interpretation of the results. Our derivation is based on the Feynman path integral formula and this work could also serve an awesome introduction to multiple slits interference. Then it is comparing between theoretical results and simulation in order to get interference pattern of it.
Physical-chemical and water-physical properties of agricultural soils on inter-mountain hollows of Mountain Altai
Authors: Elchininova O. A. , Kuznetsova O. V. , Soyonova A. N. , Chichinova G. V.
Published: February 2020

The purpose of the research is the study the basic physical,chemical and water-physical properties of soils of high and medium mountain basins of the Altai mountains under different types of agricultural use (arable land, hayfields, pasture). The main features of chestnut and light chestnut soils of high-mountain basins, dark chestnut soils and common chernozem of mid-mountain basins are established. These are a light granulometric composition with a high content of coarse soil, a sharp decrease of humus content and cation exchange capacity down the profile, slightly alkaline reaction of medium, and perfect structural state, except for the lower horizons of light chestnut soil. By density of the humus horizon, the soils of hayland and pasture belong to the soils rich in organic matter. Considerable density is noted also in the chernozem ordinary under an arable land where for many decades usual dump plowing is applied, minimum - in the dark-chestnut soil under an arable land where in recent years processing is carried out by a diskator which basic purpose - preparation of the soil for crops without preliminary plowing. The density of arable horizon on arable land correspond to typical values for a cultivated or a new-ploughed arable land. With the depth of the soil profile, this ratio increases, but it is lower than typical values for the subsurface horizons. The density of the solid phase varies slightly. In the upper organogenic horizons of the hayland and pasture, it is low due to the occurrence of organic matter. In the lower horizons, it is slightly higher and corresponds to the density of the solid phase for mineral soils. The porosity of the studied soils is in inverse proportion to density. The porosity of the upper horizons is perfect, and the horizons correspond to the cultural-arable layer. The porosity of the lower horizons is satisfactory. The hygroscopic moisture content of the soils under study varies in the wide range (0,7-9,9%). The maximum hygroscopicity in the sandy loam horizons is low (2-4%) and it is higher in loamy horizons (4-7%). The permanent wilting point ranges from 2,7 to 11,7%, and total water capacity - from 25,9 to 50,4%. Comparison of physical-chemical and water-physical properties of the studied soils of intermountain basins of the Altai Mountains with those of the same type of soils of the Altai territory and adjacent regions of Western Siberia indicates their proximity and even some advantage.
PENGGUNAAN MEDIA GAMBAR KARTUN TERHADAP RASA NASIONALISME MATA PELAJARAN PKN DI KELAS X SMK ALAWIYAH PASPAN, KECAMATAN GLAGAH, KABUPATEN BANYUWANGI TAHUN PELAJARAN 2017/2018
Authors: Umi Yasiroh  , Roudhotul Jannah
Published: February 2020

Penelitian ini bertujuan mengetahui pengaruh penggunaan media gambar kartun terhadap rasa nasionalisme mata pelajaran PKN pada siswa kelas X SMK Alawiyah. Penelitian ini merupakan menggunakan metode penelitian kuantitatif dengan penggunaan quasi eksperimen atau eksperimen semu yaitu metode penelitian yang menguji hipotesis berbentuk hubungan sebab-akibat melalui dan yang perlakuan dan menguji perubahan yang diakibatkan oleh perlakuan tersebut (Suharsimi Arikunto:2009). Subjek penelitian ini adalah siswa kelas X. Populasi penelitian berjumlah 60 orang siswa dan random sampling 36 orang siswa.Teknik pengumpulan data menggunakan observasi menyatakan lima aspek penilaian siswa skornya 3,23 yang berati hasilnya baik, dan hasil observasi guru menyatakan lima aspek penilaian guru skornya 3,00 yang berati hasilnya baik dan kuesioner menyatakan rata-rata skor yaitu 75 yang berati positif dengan pengujian hipotesis menggunakan anava satu jalur menyatakan Fhitung lebih besar dari Ftabel 3,35 yakni hasilnya 0,05≥4,78. Hal ini menunjukkan bahwa terdapat pengaruh media gambar kartun terhadap rasa nasionalisme untuk membangun dan bertanggung jawab akan kesadaran pentingnya wawasan nusantara dalam konteks NKRI pada mata pelajaran PKN di kelas X TKJ SMK Alawiyah. Penggunaan media gambar kartun menambah antusias semangat siswa dalam belajar, serta nasionalisme siswa yang paling menonjol yaitu berdemokrasi yang langsung, umum, bebas  rahasia, jujur dan adil seperti dalam gambar kartun.
d-Galvin Families
Authors: Håstad Johan , Lagarde Guillaume , Swernofsky Joseph
Published: February 2020

The Galvin problem asks for the minimum size of a family $\mathcal{F} \subseteq \binom {[n]} {n/2}$ with the property that, for any set $A$ of size $\frac n 2$, there is a set $S \in \mathcal{F}$ which is balanced on $A$, meaning that $|S \cap A| = |S \cap \overline{A}|$. We consider a generalization of this question that comes from a possible approach in complexity theory. In the generalization the required property is, for any $A$, to be able to find $d$ sets from a family $\mathcal{F} \subseteq \binom {[n]} {n/d}$ that form a partition of $[n]$ and such that each part is balanced on $A$. We construct such families of size polynomial in the parameters $n$ and $d$.
The Hopf Monoid of Hypergraphs and its Sub-Monoids: Basic Invariant and Reciprocity Theorem
Authors: Aval Jean-Christophe , Karaboghossian Théo , Tanasa Adrian
Published: February 2020

In arXiv:1709.07504 Aguiar and Ardila give a Hopf monoid structure on hypergraphs as well as a general construction of polynomial invariants on Hopf monoids. Using these results, we define in this paper a new polynomial invariant on hypergraphs. We give a combinatorial interpretation of this invariant on negative integers which leads to a reciprocity theorem on hypergraphs. Finally, we use this invariant to recover well-known invariants on other combinatorial objects (graphs, simplicial complexes, building sets, etc) as well as the associated reciprocity theorems.
Anorectal mucosal malignant melanoma
Authors: Sánchez Gálvez MÁ , Cañete Gómez J , Navas Cuéllar JA
Published: February 2020

El melanoma maligno de la mucosa anorrectal es una entidad rara y agresiva (menos del 1% de los tumores anorrectales), y su estrategia ideal de tratamiento sigue causando controversia en la comunidad científica. Tanto es así, que no se han encontrado diferencias significativas entre la resección local extensa y la amputación abdominoperineal. Tampoco parece haber una opción clara a la hora de elegir entre las terapias neoadyuvantes o adyuvantes.

En este artículo, presentamos el caso de una paciente de 64 años con un melanoma de la mucosa anorrectal localmente avanzado, en el que se practicó una exéresis local amplia de la lesión con buen control de la sintomatología.

Ante la poca evidencia de la superioridad de técnicas más agresivas en el tratamiento de estas afecciones, consideramos prudente la excisión local del tumor para mejoría sintomática del paciente.
Nefopam and its Role in Modulating Acute and Chronic Pain
Authors: Tiglis Mirela , Neagu Tiberiu Paul , Elfara Mazen , Diaconu Camelia Cristina , Bratu Ovidiu Gabriel , Vacaroiu Ileana Adela , Grintescu Ioana Marina
Published: February 2020

Pain is a very important issue to take into account during hospitalization. Nefopam, a centrally acting analgesic, has a relative safety pharmacological profile with few and well-tolerated side effects, being used to treat acute or chronic pain. It inhibits the central reuptake of serotonin, norepinephrine and dopamine and modulates the sodium and calcium channels having only few contraindications. Nefopam can be part of balanced analgesia along with others non-opioids agents in order to reduce the opioid consumption and their complications, to control postoperative pain and to reduce the risk of neuropathic pain appearance. In order to avoid its adverse reactions, a slow infusion is always recommended. Nefopam has its role in preventing the shivering appearance during neuraxial or general anesthesia, can modulate the emergence agitation after nasal and maxillofacial surgery and can inhibit the sever hiccup during mechanical ventilation. Some cases about fatal overdoses are reported in the literature.
State of the Body Evaluation on the Basis of Principle of Critical Energy
Authors: Jinescu George , Jinescu Valeriu V.
Published: February 2020

An analysis is made of the body internal and external factors that might affect its general condition. This is the starting point that can make it possible to further decide on the risk of surgery. The stresses that a body is likely to undergo may be divided into two categories: - stresses that are externally applied to the body (traumatic injuries, surgery ...); - stresses resulting in an internal effect upon body resistance (damage caused by external and / or internal factors, medical treatments ...), plus the effect of the body adaptive self-adjustment. One resorts to the concepts introduced by the principle of critical energy, namely, the specific energy participation of external stresses and the critical participation, non-dimensional variables, dependent on the behavior of the organism under different stresses. By comparing the values of these concepts, calculated for a patient, one can decide on the risk of one or more successive surgeries over a short period of time. The theoretical results obtained applied to several cases demonstrate the actual implementation of the proposed calculation method and its great practical advantage.
Catalytic Gasification of Biomass Over Fe-MgO Catalyst
Authors: Ren Qingyun , Wang Songtao
Published: February 2020

Given the significant abundance of non-food biomass resources, rural areas are endowed with a great potential for development of biomass energy systems which can make a significant contribution to economic development without public health issues. In this work, an experimental work done on air-steam gasification of biomass in precence of Fe/MgO for hydrogen rich gas production and CO2 reduction. As reactor temperature increased from 800 to 1000 oC, the tar and char yields decreased from 6.4 to 1.6 % and 18.4 to 5.6 %, respectively, while the syngas yield increased from 75.2 to 92.8 %. With the increase of C/B from 0.1 to 1.0, H2 concentration increased by 39 % while the CO2 concentration decreased from 35.4 vol% to 20.4 vol%.
Research on Honey Crystalization
Authors: Scripca Laura A. , Amariei Sonia
Published: February 2020

Crystallization of honey is a natural process and guarantee of authenticity. The aim of the study is to evaluate the influence of physico-chemical parameters on the process of crystallization and on crystal size. The interest in studying the factors influencing the crystallization process is due to the fact that most consumers, especially children, are reserved for the purchase and consumption of a crystallized honey, the commercial aspect being very important to them. Three samples of honey of different floral origins were used for the physico-chemical and microscopic analysis. The analyzes were carried out throughout 30 days every sample in triplicate. In terms of physicochemical following parameters were analyzed: acidity, diastase index, hydroximethylfurfural, humidity, invert sugar, glucose, fructose, fructose / glucose ratio and the microscopic analyze of crystals size. The parameter values resulting from the research study are in accordance with the legislation in force. Statistical analysis of experimental data highlights the influence of ratio fructose / glucose and humidity on the honey crystallization.
The Capacity of Lemna Minor L. to Accumulate Heavy Metals (Zinc, Copper, Nickel)
Authors: Neidoni Dorian Gabriel , Nicorescu Valeria , Andres Ladislau , Ihos Monica , Lehr Carol Blaziu
Published: February 2020

The assessment of the storage capacity of heavy metals (Zn, Cu, Ni) in Lemna minor L., was carried out on wastewater from galvanizing plants. Purification yield decreases with increasing metal concentration in water. The rate of bioaccumulation is high in the first three days, then decreases over the next four days.
Magnetic Properties of FeCoWYB-based Ferromagnetic Alloys with a Small Addition of Pt
Authors: Pietrusiewicz Pawel
Published: February 2020

The paper presents the results of research on the effect of Pt addition in the amount of 2 to 3% at. in to bulk Fe61Co10B20Y8-xW1Ptx alloy on its structure and magnetic properties. Alloys in the form of tiles were made by pressing a liquid alloy into a copper liquid-cooled mold. Structural examinations were carried out using X-ray diffraction (XRD). The magnetic properties were examined using a vibration magnetometer (VSM). Based on structural investigations, the occurrence of crystalline phases, i.e.: a-Fe, Fe2B, FePt, Fe3Pt, FePt3, was found. The results of VSM tests showed that both saturation magnetization (m0Ms) and coercive field (Hc) significantly increased. The study showed that even a small change in the Pt content in the alloy affects its structure and thus significantly affects the magnetic properties.
Density of Ternary Blends with Biodiesel, Diesel Fuel and Isopropanol at Different Temperatures
Authors: Nita Irina , Osman Sibel , Iulian Olga , Sandu Raluca Georgiana
Published: February 2020

The growth in environment pollution as a result of fossil fuels increased consumption has led scientists to focus on biofuels such as biodiesel and bioalcohols. The ternary blends of bioalcohols with fossil fuels and biodiesel show better properties as fuels for diesel engine, than binary blends of biodiesel with diesel fuel. The purpose of this work is to report experimental density data for biodiesel+diesel fuel+isopropanol pseudo-ternary system at atmospheric pressure, covering the whole composition range and for temperature ranging from 293.15 to 323.15K. Based on experimental data, the accuracy of different mixing rules and empirical equations used to calculate the density of the pseudo-ternary system has been evaluated.
Silica-Alginate Beads for Intestinal Ketoprofen Delivery
Authors: Petrescu Marilena , Mitran Raul Augustin , Matei Cristian , Radulescu Marius , Berger Daniela
Published: February 2020

Herein, studies on ketoprofen delivery systems based on silica-alginate beads developed for the drug intestinal release for reducing its side effects were reported. The influence of surface properties, pore size and geometry of mesoporous silica carriers on the ketoprofen release kinetics was studied by using pristine and 3-aminopropyl functionalized MCM 41 (Mobile Composition of Matter) and MCF (mesocellular foam silica) materials. The ketoprofen loaded mesoporous silica coated with alginate is a pH-triggered system able to slow down the drug release rate in the targeted environment.
Biochemical Parameters in Patients Using Teriparatide
Authors: Radu Lucretiu , Carsote Mara , Predescu Anca Mihaela , Tenea Cojan Tiberiu Stefanita , Socea Bogdan , Baleanu Vlad Dumitru , Popescu Mihaela , Ionovici Nina , Albulescu Dana Maria
Published: February 2020

Teriparatide (TPT) is the active 1-34 amino acid sequence with osteoanabolic use for severe osteoporosis. Our aim is to analyze the biochemical and clinical profile of patients treated with TPT based on Romanian protocol. The inclusion and exclusion criteria are based on specific country protocol for TPT 20 �g/day, for 2 years, once in life time based on self administration. This is a transversal study including data of a tertiary centre of endocrinology on patients who signed the informed consent. This is a real life study, of observational type (the intervention meaning the TPT recommendation was done by individual decision of each clinician). Normal total and ionic calcium is associated with low 25-hydroxyvitamin D levels and a mean lumbar T-score of -3.1�0.7SD. 50% of patients treated with TPT have digestive conditions, less than 10% are first time users, a high severity profile is based on a median of 4 years regarding prior anti-osteoporotic medication and of 3 previous fragility fractures.
Reversed-Phase High Performance Liquid Chromatographic Analysis of Three First Line Anti-Tuberculosis Drugs
Authors: Bibire Nela , Olariu Romeo Iulian , Agoroaei Luminita , Vieriu Madalina , Panainte Alina Diana , Cernat Roberta Ionela , Arsene Cecilia
Published: February 2020

Active pharmaceutical ingredients such as isoniazid, pyrazinamide and rifampicin are among the most important first-line anti-tuberculosis drugs. A simple, rapid and sensitive reversed phase-high performance liquid chromatographic assay method for the simultaneous determination of isoniazid, pyrazinamide and rifampicin has been developed. Separation of the interest compounds was achieved in a 10 min chromatographic run in gradient elution mode on a Zorbax SB-C18 stainless steel column (150 � 4 mm, 5 mm) using a guard column containing the same stationary phase. The gradient elution was carried out with a mobile phase of 10% CH3CN aqueous solution for channel A and 50% CH3CN in pH = 6.8 phosphate buffer (20 mM), to which 1.5 mL triethylamine were added for channel B. Quantification of the analyzed substances was carried out spectrophotometrically at 269 nm. Detection limits of 0.48 mg/L for isoniazid, 0.52 mg/L for pyrazinamide and 0.48 mg/L for rifampicin were established for the developed assay method. The present work showed that the proposed analysis method was advantageous for simple and rapid analysis of the active pharmaceutical ingredients in pharmaceuticals and biological fluids.
Markers Usefulness in the Melanic Metastatic Cellular Epitops Identification in the Sentinel Lymph Node
Authors: Endres Laura , Tit Delia Mirela , Bungau Simona , Cioca Gabriela , Daim Mohamed Abdel , Buhas Camelia , Pop Ovidiu , Sava Cristian
Published: February 2020

Cutaneous melanoma is the most severe skin neoplasia with an increased incidence in the recent decades, particularly due to the intense exposure to sunlight. Our study analyzed the characteristics of malignant melanoma and the role of sentinel node biopsy in the diagnosis and prognosis of the patients with cutaneous melanoma by identifying the regional metastasis. The small or large clusters of circulating cancer cells are expressing epitops identified by some chemical reaction. These reagents are usually monoclonal antibodies with high sensitivity and specificity which are matching with the right receptor from the melanoma cells. The result is an antibody-antigen complex high-light in the microscopic examination by 3,3`-diaminobenzidine (DAB). The study was conducted on a sample of 151 patients diagnosed with melanoma in different developmental stages: 62 had Breslow index between 1-4 mm, 71 patients had Breslow index � 4 mm and 18 patients had Breslow index [ 1 mm. 45 patients (out of 62) with Breslow index between 1-4 mm had SLN positive. The mortality rate was 5% in the case of the patients with SLN positive. Comparing the rate of mortality by considering the Breslow index, 65% of the patients with Breslow index � 4 mm died. The correct identification of the patients with negative sentinel node or positive sentinel node improves staging and can facilitate the subsequent therapeutic decision, which is useful for early identification of the micro metastases and of the patients who require regional complete lymph node dissection.
Novel Formulation Based on Chitosan-Arabic Gum Nanoparticles Entrapping Propolis Extract Production, physico-chemical and structural characterization
Authors: Cavalu Simona , Bisboaca Simona , Mates Ileana Mariana , Pasca Paula Melania , Laslo Vasile , Costea Traian , Fritea Luminita , Vicas Simona
Published: February 2020

The aim of our study was to prepare and characterize chitosan-based nanoparticles encapsulating propolis extract by ionotropic gelation and glutaraldehyde cross-linking technique. Both spectroscopic (UV-Vis, FTIR) and microscopic techniques (AFM) were applied for structural characterization of nanoparticles, along with entrapment and release study of propolis extract. The physico-chemical properties and morphological features of the obtained nanoparticles demonstrated a good correlation between all the investigated methods. Moreover, the bioactive compounds were stable upon the encapsulation procedure. Propolis release from the polymeric matrix was monitored in both simulated gastric acid and simulated intestinal fluids, concluding that our proposed formulation is suitable for controlled release. These results may provide a novel design, with improved bioavailability, stability and nutritional value of propolis bioactive compounds during processing and storage, with possible applications in food and nutraceutical industries.
Optimisation of Squalene Recovery from Amaranth Oil by Short Path Distillation
Authors: Babeanu Narcisa Elena , Nita Sultana , Popa Ovidiu , Marin Doru Ioan , Batrinescu Gheoghe
Published: February 2020

We aim to determine the optimal conditions for obtaining a higher concentration of squalene (C30H50) with an increased yield from oil extracted from Amaranthus cruentus cultivated in Romania. A central composite experiment design was carried out to study the effect of operating conditions on the squalene concentration and recovery yield using short path distillation at laboratory scale. Among the three variables studied: feed flow rate, evaporator temperature and wiper speed, the most important proved to be evaporator temperature and the flow rate. Using the proposed models, we have identified three sets of values for the mentioned parameters, which ensure either a maximum squalene concentration or the best value for the squalene recovery yield, or an optimum between the maximum concentration and the best yield.
Studies Regarding the Architectural Design of Various Composites and Nanofibres Used in Dental Medicine
Authors: Gradinaru Irina , Ignat Leonard , Dascalu Cristina Gena , Soroaga Laurentiu Valentin , Antohe Magda Ecaterina
Published: February 2020

The aim of this study was represented by the definition and testing of a new formulation strategy and the functionality of composite materials, while ensuring the optimization of the relevant properties for the dental restoration processes through the use of precise techniques of characterization, the modification and functionality of the components in view of obtaining results that are characterized by an optimum biomechanical and bioactive relation, in full agreement with the particularities of the dental structure that requires restoration. In view of obtaining new resistant composite structures we made a number of 10 samples including extracted teeth with various losses of dental substance and the structural modifications included 3 types of composites, whose structure was improved by the introduction of inorganic fillings based on hydroxyapatite and silver nanoparticles. All these structures were reinforced with two types of fibers, Reforpost fiber glass kit (Angelus) and Fiber post Schulzer Pre-silanized; With regard to the use of composite structures improved by HA addition, we notice a slight lacunary structure on the SEM images due to the properties of HA, an aspect present at much smaller dimensions in the silver � HA mix. The size of the grains associated with their continuous uniformity and adherence for the fibrillar structure stands out at the samples with hydroxyapatite, the first place as uniformity and adherence going to the composite of the nanofiller technology category.
Sugammadex: What to Know for Your Daily Practice
Authors: Tiglis Mirela , Grintescu Ioana Cristina , Neagu Tiberiu Paul , Turcu Flavia Liliana , Cocolos Andra Maria , Grintescu Ioana Marina
Published: February 2020

Sugammadex (Bridion) represents a class named muscle relaxant encapsulator. It can be used to reverse the neuromuscular blockade induced by rocuronium or vecuronium in case of general anesthesia. Its molecular weight is 2.178 g/mol, with a structure consisting in a ring of eight negative charges. It has no receptor interaction in human body and it is eliminated via kidney, being contraindicated in end-stage kidney disease patients. Sugammadex has few side effects but there are same case reports about allergic reactions. Only three drugs can actually interact with sugammadex: toremifene, flucloxacillin and fusidic acid. It can be used in elderly and pediatric patients, in morbidly obese patients, patients with hepatic insufficiency or mild and moderate renal insufficiency or in muscular disease. Despite its beneficial use, the high price remains its main issue.