bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exceso de horas de trabajo y la salud del docente en educación superior
Authors: Deza Loyaga Walter Francisco , Aparicio Ballena Jorge Alberto 
Published: November 2018

La presente investigación se realiza haciendo un acercamiento a los riesgos o daño de salud del docente que trabaja dictando horas de clases en exceso y en más de un centro de trabajo, se escogió una muestra de docentes que trabajan a tiempo completo en un instituto superior y a la vez a tiempo parcial en diversas universidades. Estableciendo como objetivo, el determinar la relación que existe entre el exceso de horas de trabajo en la docencia y el daño a la salud del docente. La investigación se realizó entre los meses de abril y julio del 2016, a docentes que laboran en un instituto superior y universidades en forma paralela, a todos los docentes se aplicó una encuesta presencial con la finalidad de poder atender alguna observación pertinente. Mediante la observación directa se recogió información sobre las condiciones donde laboran los docentes. La muestra de trabajo corresponde 134 docentes de institutos y universidades. De la investigación se deduce que las horas en exceso de trabajo tiene relación directa con la mala alimentación durante la jornada, así como laborar en más de un centro de trabajo por las bajas remuneraciones que perciben, con la exigencia ergonómica traducida en levantar la voz permanentemente durante las clases, asociada al grado de exigencia del trabajo docente. Por lo que se concluye, que los docentes se encuentran en un nivel alto de exposición a factores de riesgos o daño de su salud, teniendo enfermedades diagnosticadas.
RP-HPLC METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANIOUS ESTIMATION AND FORCED DEGRADATION STUDIES OF LAMIVUDINE AND RALTEGRAVIR IN SOLID DOSAGE FORM
Authors: Tejaswi Juluri Krishna Dutta , Rajan R. Govinda 
Published: November 2018

Objective: A stability indicating reverse phase high-performance liquid chromatography (RP-HPLC) method was developed and validated for the estimation of the combined tablet formulation of lamivudine (LAM) and raltegravir (RAL) in dosage forms and its API.Methods: Chromatographic separation was achieved on inertsil ODS C18 5 µm (4.6 X 150 mm) using a mobile phase (MP) consisting of a mixture of mixed orthophosphoric acid (OPA): acetonitrile (ACN) in the ratio 50:50 v/v which was determined at 242 nm respectively. Results: The assay of LAM and RAL was performed with tablets, and the % assay was found to be 100.12 and 99.89 which shows that the method is useful for routine analysis. The linearity of LAM and RAL was found to be linear with a correlation coefficient of 0.998 and 0.999, which shows that the method is capable of producing good sensitivity. The retention time of LAM and RAL was 1.99 min and 4.34 min respectively; linearity range was found to lie from 15 µg/ml to 75 µg/ml for LAM, 30 µg/ml to 150 µg/ml for RAL with a correlation coefficient of 0.999 respectively. Forced degradation studies were conducted in acidic, basic, thermal, photolytic and peroxide where all the degradation peaks were monitored.Conclusion: The proposed HPLC method was found to be simple, specific, precise, accurate, rapid and economical for simultaneous estimation of LAM and RAL in bulk and tablet dosage form. Thus the validated economical method was applied for forced degradation study of LAM and RAL tablet.
Efficacy of gelatin tannate for acute diarrhea in children: a systematic review and meta-analysis
Authors: Aloi Marina , Mennini Maurizio 
Published: November 2018

Aim:To investigate by meta-analysis the efficacy of gelatin tannate (GT), a mucosal barrier protector, in children with acute gastroenteritis.Methods:A comprehensive literature search was conducted. Studies were selected according to PICO: Participants: children aged 0−12 years with acute diarrhea; Intervention: GT; Comparison: oral rehydration solution and/or placebo; Outcomes: diarrhea-related outcomes.Results:Three published randomized controlled trials were identified of pediatric diarrhea treated with GT (n = 203) or control (n = 204). GT significantly (p < 0.01) reduced stool frequency at 12 h in two randomized controlled trials. A significant treatment effect (risk ratio = 0.74; p < 0.01) in favor of GT was found for the exploratory composite outcome of ‘diarrhea or liquid stools at 24 h’ in three studies. Risk ratios in a single study which reported the percentage of patients with liquid stools at 12, 24 and 48 h favored GT at all time points. No significant differences were found between GT and control for patients with diarrhea at 12 or 24 h or for duration of diarrhea.Conclusion:GT improved stool frequency and stool consistency in children with acute diarrhea, although further well-controlled studies would be useful to confirm a beneficial treatment effect.
Fundamentos y tendencias del nuevo institucionalismo
Authors: Rangel Correa Arturo Ricardo 
Published: November 2018

<p>Este trabajo pretende esbozar, las diversas acepciones que trae al debate el nuevo institucionalismo a través de sus fundamentos y tendencias. Al interpretar las principales características y elementos clave del enfoque neoinstitucional, es menester fomentar una perspectiva crítica que enriquezca el debate, y nos permita retomar las implicaciones que ha tenido a través del tiempo.</p><p><br />El presente análisis abordará, qué es una institución, su significado central y su implicación “como procedimiento organizado y establecido, tomando en cuenta que estos procedimientos especiales, a menudo, se presentan como reglas componentes de la sociedad” (Jepperson, 1993:193); asimismo se retomarán los fundamentos del nuevo institucionalismo a través de su propuesta teórica para comprender cuál es su objetivo; y finalmente, sus tendencias, más allá de sus planteamientos metodológicos, su concepción y su incidencia en procesos de acción y cambio social. </p>
Agronomic and Economic Performance of Genetically Modified and Conventional Maize
Authors: Hrčková Katarína , Mihalčík Peter , Žák Štefan , Hašana Roman , Ondreičková Katarína , Kraic Ján 
Published: November 2018

Abstract
The parameters determining the agronomic and economic performance of genetically modified maize hybrid MON 89034 × NK603 and conventional hybrids were compared under conditions that eliminated the herbicide tolerance in GM hybrid as well as the use of insecticides in conventional hybrids. The GM hybrid confirmed ability to protect itself against the European corn borer and its average grain yield was higher by 6.36-14.42% (i.e. 0.82-1.86 t/ha) in comparison with conventional hybrids. The year of cultivation statistically significant influenced agronomic parameters and the financial income of maize production. The maize genotype did not statistically significantly affected any evaluated parameter. The final income was statistically significant (P < 0.05) negatively influenced by all observed agronomic parameters with the exception of the seed price. The price of maize grains on the market was the only one factor that statistically significant (P < 0.05) influenced financial income of the maize production.
Soil Agrochemical Changes after Kieserite Application into Chernozem and its Effect on Yields of Barley Biomass
Authors: Lošák Tomáš , Elbl Jakub , Kintl Antonín , Čermák Pavel , Mühlbachová Gabriela , Neugschwandtner Reinhard W. , Torma Stanislav , Hlušek Jaroslav 
Published: November 2018

Abstract
A two-year pot experiment (5 kg of soil - Mitscherlich pots) was established in a vegetation hall in Brno (Czech Republic) in the years 2016‒2017. Spring barley, variety KWS Irina, was grown. Chernozem from Brno (with a good magnesium (Mg) content and alkali soil reaction - 7.37) was used for this experiment. The rates of Mg (0.075-0.15-0.3 g per pot) and sulphur (S) (0.1-0.2-0.4 g per pot) were increased by using the ESTA Kieserite fertiliser (25% MgO; 20% S), treatments 2-4. Nitrogen was applied in the form of Calcium Ammonium Nitrate - CAN (27% N) at a rate of 1 g N per pot in all the treatments including the control. The effect of the year was found to be significant on all the parameters under study, with the exception of the soil reaction. The exchangeable soil reaction (pH) after the harvest did not differ in all the fertilised treatments (7.40-7.50) compared to the unfertilised control treatment (7.40-7.45) in both years. The content of post-harvest soil Mg and S increased significantly with the applied rate (285-354 mg Mg/kg in fertilised treatments compared to 276-284 mg Mg/kg in unfertilised control and 47-112 mg S/kg in fertilised treatments compared to 24-54 mg S/kg in unfertilised control, respectively). Dry matter yields of the aboveground biomass were significantly the lowest in the control treatment not fertilised with Mg and S during both years (23.00 and 29.02 g DM per pot) and increased after applications of Mg and S: 27.75-29.25-28.25 in 2016 and 30.33-31.00-34.50 in 2017 (g DM per pot).
Tolerance of roach for modified water mineralization levels and temperatures expressed by biochemical indicators
Authors: Potrokhov Oleksandr S. , Zinkovskyi Oleg G. , Prychepa Mykola V. , Khudiyash Yuryi M. 
Published: November 2018

Abstract
Changes in the activity of Na+/K+-ATPase, lactate dehydrogenase, and succinate dehydrogenase in the white muscles and gill petals of roach, Rutilus rutilus (L), were studied for the combined actions of water mineralization and water temperature. It was established that decreased mineralization to 260.0 mg dm-3 and increased water temperature to 32°C increased aerobic processes in roach tissues. A sharp increase in water temperature and changes in water mineralization significantly affected the tolerance and physiological state of fish and could impact their abundance in waterbodies.
Impact of a polyunsaturated fatty acid supplement on enriching the nutritional value of brine shrimp nauplii, Artemia sp.
Authors: Prusińska Maja , Khudyi Oleksii , Kolman Ryszard , Khuda Lidiia , Duda Arkadiusz , Wiszniewski Grzegorz , Marchenko Mykhailo , Kushniryk Olga 
Published: November 2018

AbstractThe first aim of the study was to determine the impact the commercial product S.presso (INVE Aquaculture, Belgium) had on enriching the proximate composition of brine shrimp (Artemia sp.). The second aim of the study was to develop a better enrichment protocol for preparing enriched brine shrimp larvae. Two different enrichment protocols were investigated; the supplement was administered in either one (0.5 g L-1) or two equal (0.25 g L-1) doses. Using S.presso to enrich brine shrimp nauplii with polyunsaturated fatty acids resulted in higher levels of total lipids and higher quantities of docosahexaenoic acid DHA and eicosapentaenoic acid EPA deposition. Additionally, the enrichment supplement did not lead to overall lowered protein content values caused by increased hydrolytic activity that likely facilitates digestion in larval fish as they shift to exogenous feeding.
A revised moment error expression for the AIRGA algorithm
Authors: Faßbender Heike , Mayer Julius 
Published: November 2018

Abstract
The fully adaptive rational global Arnoldi method (AIRGA) for the modelorder reduction of second-order multi-input multi-output systems with proportional damping is revisited. The method automatically generates a reduced system approximating the transfer function. It is based on a moment-matching approach. The expansion points are determined iteratively. The reduced order and the number of moments matched per expansion point are determined adaptively using a heuristic based on an error estimation. A revised moment error expression is presented as well as some related findings.
DC-Programming versus ℓ0-Superiorization for Discrete Tomography
Authors: Gibali Aviv , Petra Stefania 
Published: November 2018

Abstract
In this paper we focus on the reconstruction of sparse solutions to underdetermined systems of linear equations with variable bounds. The problem is motivated by sparse and gradient-sparse reconstruction in binary and discrete tomography from limited data. To address the ℓ0-minimization problem we consider two approaches: DC-programming and ℓ0-superiorization. We show that ℓ0-minimization over bounded polyhedra can be equivalently formulated as a DC program. Unfortunately, standard DC algorithms based on convex programming often get trapped in local minima. On the other hand, ℓ0-superiorization yields comparable results at significantly lower costs.
The influence of the non-linear diffusion on the mass transfer of a packaging contaminant into foodstuffs
Authors: Juncu Gheorghe 
Published: November 2018

Abstract
The unsteady mass transfer of the packaging constituents to a food has been analysed. The diffusion coefficient inside the packaging was considered concentration - variable while the food was considered concentration spatially gradientless. A well-known technique (Kirchhoff transformation) was used to solve the non-linear mass balance equation. The influence of the non-linear diffusion on the mass transfer mechanism and rate was analysed for different values of the partition coefficient and dilution coefficient.
Riemann Problem for Shallow Water Equation with Vegetation
Authors: Ion Stelian , Marinescu Dorin , Cruceanu Stefan-Gicu 
Published: November 2018

Abstract
We investigate the existence of the solution of the Riemann Problem for a simplified water ow model on a vegetated surface - system of shallow water type equations. It is known that the system with discontinuous topography is non-conservative even if the porosity is absent. A system with continuous topography and discontinuous porosity is also non-conservative. In order to define Riemann solution for such systems, it is necessary to introduce a family of paths that connects the states defining the Riemann Problem. We focus our attention towards choosing such a family based on physical arguments. We provide the structure of the solution for such Riemann Problems.
Error Analysis and Model Adaptivity for Flows in Gas Networks
Authors: Stolwijk Jeroen J. , Mehrmann Volker 
Published: November 2018

Abstract
In the simulation and optimization of natural gas flow in a pipeline network, a hierarchy of models is used that employs different formulations of the Euler equations. While the optimization is performed on piecewise linear models, the flow simulation is based on the one to three dimensional Euler equations including the temperature distributions. To decide which model class in the hierarchy is adequate to achieve a desired accuracy, this paper presents an error and perturbation analysis for a two level model hierarchy including the isothermal Euler equations in semilinear form and the stationary Euler equations in purely algebraic form. The focus of the work is on the effect of data uncertainty, discretization, and rounding errors in the numerical simulation of these models and their interaction. Two simple discretization schemes for the semilinear model are compared with respect to their conditioning and temporal stepsizes are determined for which a well-conditioned problem is obtained. The results are based on new componentwise relative condition numbers for the solution of nonlinear systems of equations. More- over, the model error between the semilinear and the algebraic model is computed, the maximum pipeline length is determined for which the algebraic model can be used safely, and a condition is derived for which the isothermal model is adequate.
MHD convection ow in a constricted channel
Authors: Tezer-Sezgin M. , Gürbüz Merve 
Published: November 2018

Abstract
We consider the steady, laminar, convection ow in a long channel of 2D rectangular constricted cross-section under the inuence of an applied magnetic field. The Navier-Stokes equations including Lorentz and buoyancy forces are coupled with the temperature equation and are solved by using linear radial basis function (RBF) approximations in terms of the velocity, pressure and the temperature of the fluid. RBFs are used in the approximation of the particular solution which becomes also the approximate solution of the problem. Results are obtained for several values of Grashof number (Gr), Hartmann number (M) and the constriction ratios (CR) to see the effects on the ow and isotherms for fixed values of Reynolds number and Prandtl number. As M increases, the ow is flattened. An increase in Gr increases the magnitude of the ow in the channel. Isolines undergo an inversion at the center of the channel indicating convection dominance due to the strong buoyancy force, but this inversion is retarded with the increase in the strength of the applied magnetic field. When both Hartmann number and constriction ratio are increased, ow is divided into more loops symmetrically with respect to the axes.
On the ability of the Generalized Continuum Transport Model to properly capture dispersion
Authors: Vasilyev Leonid , Radu Florin Adrian 
Published: November 2018

Abstract
The ability of the Generalized Continuum Transport model to describe dispersion is studied through the comparison of the breakthrough curves with an analytical solution of the linear advection-dispersion Equation. First, a velocity distribution due to Taylor dispersion in a capillary tube is related to the dispersion coeficient of the advection-dispersion equation. The same distribution is applied to the Generalized Continuum Transport model, where the dispersive flux term is not included as the term proportional to the concentration gradient. In the second stage the velocity distribution is obtained from the transition probability introduced through the Continuous Time Random Walk approach. The approaches support the idea that the Generalized Continuum Transport model captures velocity variations naturally through the parameter space. The results confirm that a proper selection of the parameter space, including its size, leads to more physical transport description as well as accurate quantification.
Comparison of selected clinical and personality variables in alcohol–dependent patients with or without a history of suicide attempts
Authors: Gerhant Aneta , Krzewicka-Romaniuk Ewa , Siedlecka Dagna , Derewianka-Polak Magdalena , Olajossy Marcin 
Published: November 2018

Summary

Objective: The aim of the study was to determine differences in the range of socio-demographic variables, selected clinical variables, temperament and character traits, coping with stress strategies and the level of aggression in alcohol addicts with or without a history of suicide attempt(s).

Methods: The study involved 90 people addicted to alcohol, treated in inpatient alcohol dependence treatment program. In order to collect data on socio - demographic variables and selected clinical variables, a self-made questionnaire was used. The severity of alcohol dependence was verified using the MAST and SADD scales. Characteristics of temperament and character were examined with the TCI questionnaire. The BPAQ and COPE questionnaires were used to examine the level of aggression and styles of coping with stress.

Results:Out of 90 subjects with alcohol dependence syndrom, 20% had attempted suicide in the past. The respondents with a history of suicide attempts were statistically significantly younger, were characterized by a younger age of alcohol drinking initiation and the initiation of regular alcohol drinking, and a greater severity of alcohol dependence in the MAST and SADD scales. A significantly larger percentage of respondents who had attempted suicide inflicted self-injury in the past, used other psychoactive substances as well as hypnotics and sedatives. The subjects with a suicide attempt in the interview obtained statistically significantly higher scores in terms of the level of aggression, harm avoidance and self-directedness, and more often used the style of coping with stress based on avoidance and accepting the situation.

Conclusions: The obtained results correspond with data available in the literature and may provide a foundation for theoretical models explaining the phenomenon of suicidal behavior in alcohol addicts as well as for suicide prevention programs in this group of patients.
Síndrome Guillain-Barré: Un mirada actual
Authors: González Manrique Guillermo , Giraldo Bahamon Germán , González Motta Alejandro , Ramirez Ramos Cristhian Felipe 
Published: November 2018

El Síndrome de Guillain-Barré es la causa más frecuente de parálisis flácida aguda no traumática en el mundo y constituye una emergencia neurológica. Consiste en una poliradiculoneuropatia inflamatoria adquirida, usualmente post-infecciosa que se caracteriza por una parálisis aguda arreflexica, generalmente simétrica de carácter ascendente con compromiso sensitivo, motor o mixto. El diagnóstico es clínico, se apoya en el estudio electrofisiológico confirmando el patrón desmielinizante, las anormalidades en la inda F y reflejo H junto con la característica disociación albumino citológica en el líquido cefalorraquídeo.
Coriocarcinoma con metástasis a Pulmón
Authors: Rojas Fabio , Martínez Susana , Medina Yordiana 
Published: November 2018

El coriocarcinoma es un tumor maligno que se caracteriza por hiperplasia trofoblástica con anaplasia, ausencia de vellosidades, hemorragia y necrosis. Se encuentra una paciente con antecedentes de mola hidatidiforme que, después de tres años, se le diagnosticó coriocarcinoma con metástasis a pulmón. La paciente consultó por amenorrea y dolor abdominal, se le iniciaron estudios encontrando masa uterina. El análisis patológico reportó coriocarcinoma. Posterior al diagnóstico la paciente inició tratamiento quimioterapéutico con evolución adecuada y curación completa. El coriocarcinoma carece vellosidades coriales, sincitio y citotrofoblasto anormal, presenta hemorragia y necrosis que invade el miometrio y los vasos sanguíneos. Hace metástasis principalmente a pulmón, cerebro e hígado, se registra mortalidad menor al 15% en pacientes con diagnóstico temprano y tratamiento oportuno; se ha demostrado que es un tumor ampliamente quimiosensible y, a pesar de la presencia de metástasis, existe una alta tasa de curación.
Recognizing diverse views:
Authors: Dikawati Reni 
Published: November 2018

Ethnograhpy become one of the major method, its emphasis on understanding the perceptions and culture of people and organization studied. Through differences between peoples, cultures, moral believes, religiousness may be described, the description itself will be based on a single view constructed by the gendered, classed, and raced position of the theorist. Foucoulth argued that discourse-practice construct both the subject and object they describe. An epistemology is a theory of the nature of knowledge and a way of justifying knowledge claims. Humanism is a part of critical thinking which come from human changing form of dignity, role, the idea of enlighment, and the responsibility of humanity. In the javanese christianity context, Kiai Ibrahim Tunggul Wulung teaches the importance appointed human dignity. He inherits some life lesson which are summarizes in own perspective of Christiany and javanese culture on Tegalombo comunity. Tunggul Wulung combines the wisdom of javanese culture and christianity in accordance of the condition and the requirement of the society. Those combination concept is manifested through in mission method theory which aim guide human to life their lives properly. However, this method was not accapted by the foreign missionaries, and in the social structure at that time. They accused Tunggul Wulung’s method as form of sincretism. This work is an attemp to analyze Tunggul Wulung mission method in the context of Indonesia, it is perhaps more to make explicit the lack of a common methodology, formulate one true to at least one understanding of what “critical” means, and encourage debate, and discussion on the issue. The justification of knowledge claims involves, as in the case of example, stating a position and defending that position with reason. It’s hope that Tunggul Wulung’s achievment can be aprreciated by the present generation, and they will negotiated epistemology in a history classroom which different some point of views.