bluuebunny/crossref_metadata_2025 huggingface dataset:
PHRONESIS E VIRTUDE DO CARÁTER EM ARISTÓTELES: COMENTÁRIOS A ÉTICA A NICÔMACO VI
Authors: Angioni Lucas
Published: April 2018

Procuro examinar passo a passo a argumentação desenvolvida por Aristóteles no livro VI da Ética a Nicômaco, buscando compreender de que modo a razão correta da phronesis delimita as mediedades e garante a efetiva realização das ações conforme aos propósitos da virtude do caráter. Essa delimitação das mediedades parece envolver duas camadas: o uso do raciocínio deliberativo para a determinação de propósitos (prohaireseis), e a avaliação dos fatores singulares envolvidos nas circunstâncias de cada ação. À luz disso, compreendemos melhor a definição da phronesis como “realizadora de ação” (praktike), bem como sua interdependência em relação à virtude do caráter.
EN TORNO A LA POLÉMICA HABERMAS–PUTNAM SOBRE LA VALIDEZ RACIONAL DE LOS JUICIOS ÉTICOS Y MORALES
Authors: Navia Ricardo
Published: April 2018

Se nos juízos científicos ou empíricos a objetividade é possível pela existência de entidades independentes, que tipo de fatos poderiam assegurar a objetividade de julgamentos ético-morais? Tanto para Habermas como para Putnam os valores éticos têm uma certa objetividade que emana do “reconhecimento intersubjetivo de standars de avaliação para os quais podemos encontrar boas razões” no contexto de um estilo de vida particular. No entanto, para Habermas, essa validade não é mais suficiente na situação das sociedades contemporâneas, onde é preciso regular os conflitos e as relações entre diversos grupos com ideais muitas vezes conflitantes. Os objetivos deste trabalho são: 1) reconstruir os argumentos básicos desta controversia 2) adotar uma concepção sobre alguns dos pontos em questão, indicando uma forma de integrar os aspectos de ambas as visões, à qual poderia chegar ao alvo que eles compartilham, a saber, fundar a possibilidade de uma ética cognitivista que contorna os problemas do relativismo sem cair nas dificuldades de realismo metafísico.
ETERNO RETORNO: BATAULT (1904), CIÊNCIA E TRANSVALORAÇÃO
Authors: Frezzatti Jr Wilson Antonio
Published: April 2018

Este texto investiga o artigo “L´Hypothèse du Retour Éternel devant la science moderne” do filósofo suíço Georges Batault, publicado em 1904 na Revue philosophique de la France et de l´Étranger. Pretendemos mostrar que uma abordagem científica da noção nietzschiana de eterno retorno sem considerar seu contexto filosófico transforma-a em uma concepção metafísica. Não podemos entender o eterno retorno desvinculado da proposta de transvaloração de todos os valores. O eterno retorno nietzschiano não é uma teoria científica, mas uma experiência do pensamento, cuja meta é superar a interpretação dominante, ou seja, a interpretação metafísico-cristã.
GÓRGIAS E A RETORICIDADE: ONIPRESENÇA E ONIPOTÊNCIA DA CAPACIDADE RETÓRICA
Authors: Engler Maicon Reus
Published: April 2018

Este artigo apresenta algumas considerações gorgianas sobre a retórica a fim de contrabalançar a visão da retórica clássica exposta por John Bender e David Wellbery, no interior de suas cinco teses históricas sobre o ressurgimento contemporâneo dessa arte e seu enfraquecimento na Modernidade. Depois de breve introdução ao tema (I), explico as teses de tais autores, seu conceito de retoricidade e sua concepção da retórica clássica (II). Analiso então aspectos da retórica grega (III) e três teses de Górgias que contrabalançam a concepção dos autores: a) a indeterminação genérica da retórica, b) a instanciação do discurso sobre a verdade/conhecimento e c) a sua aplicação a contextos não-técnicos e desinstitucionalizados (IV). Minha conclusão é de que Górgias está muito mais próximo de uma situação de “retoricidade” do que julgam tais autores.
EDUCAÇÃO, FORMAÇÃO DO CARÁTER E MOTIVAÇÃO MORAL EM PLATÃO
Authors: De Oliveira Mário Nogueira
Published: April 2018

Este artigo trata filosofia de Platão especificamente abordando a questão da educação vinculada com a formação do caráter moral que possibilita a motivação para a escolha de ações virtuosa por quem aceitou se submeter ao treinamento dialético buscando autoconhecimento e pensamento crítico. O artigo pretende apresentar como a dialética platônica é uma forma especialmente apropriada para a compreensão da prática conjunta e simultânea de educação, pensamento crítico, ética e política. Para alcançar estes objetivos analisamos partes de um exemplar de cada tipo de diálogo platônico: o Cármides, como diálogo socrático, a República como um diálogo do período intermediário e o Político como um representante dos diálogos lógicos, último grupo dos diálogos platônicos.
BRECHT E O MAL NO MUNDO: EXCEÇÃO OU REGRA?
Authors: Bueno Roberto
Published: April 2018

Este artigo analisa os elementos filosófico-políticos e antropológicos que perpassam o texto literário e filosófico A exceção e a regra, de Bertold Brecht, que aproxima-nos dos limites da bárbara avareza e maximização das perspectivas de enriquecimento em prejuízo do elemento humano, cruamente expostos pelo marxismo de Brecht, que questiona nas entrelinhas, se experimentamos o mal como regra ou exceção. O presente escrito expõe os dilemas que compõem a organização social e realiza a crítica do discurso subjacente ao texto que é finalizado com uma decisão do tribunal que traduz, em seu subtexto, as vicissitudes de atividade judicial enfrentada à exploração humana radical, sentimentos de classe e seu comprometimento com uma determinada perspectiva antropológica. Enfoca-se, também, o perfil ético dos personagens e seus reflexos nas instituições e explora a ideia de que o mal habita os primeiros e repercute nestas instituições desprotegidas, algo exemplificado no texto pelo desconexo da decisão do tribunal em face das circunstâncias do homicídio que é posto a julgamento.
PLURALISMO, LIBERDADE SEXUAL E MODERNIDADE
Authors: Silva Walter Valdevino Oliveira
Published: April 2018

O objetivo deste texto é comentar a obra As origens do sexo: a história da primeira revolução sexual, do historiador britânico Faramerz Dabhoiwala, para mostrar em que sentido ela se assemelha e complementa a interpretação feita pelo filósofo americano John Rawls a respeito da Reforma Protestante como o evento histórico determinante para a instauração do pluralismo dentro das sociedades liberais democráticas.
MODERNIDADE, UNIVERSALISMO E ASSIMILAÇÃO: DIREITOS HUMANOS COMO CRÍTICA À MODERNIDADE
Authors: Danner Leno Francisco
Published: April 2018

Criticarei a teoria da modernidade de Habermas no que tange à afirmação da modernidade europeia como sustentáculo de um paradigma epistemológico-moral universalista e de um projeto integrativo em nível cosmopolita. Na teoria habermasiana, a cultura descentrada, gestada na modernidade europeia, pode embasar estruturas de consciência racionalizadas, não-egocêntricas e não-etnocêntricas, de abrangência universalista, afirmadoras da democracia e dos direitos humanos tanto como critérios epistemológicos ajuizadores dos contextos particulares quanto como garantidores de um projeto integrativo abrangente. Contrariamente a isso, defenderei que o universalismo epistemológico-moral moderno possui uma lógica assimilacionista, que deslegitima os contextos particulares como condição de sua sobrevivência enquanto visão de mundo pretensamente universalista, legitimando, assim, a própria modernidade europeia como critério supremo da crítica e da integração, na medida em que lhe dá um alcance para além de si mesma, abarcando também contextos não-modernos.
Ética evolucionista: a diferença entre altruísmo e moralidade
Authors: Rex Roger Valério de Vargas
Published: April 2018

Autores que adotam a abordagem da ética evolucionista para explicar a conformação da psicologia humana costumam confundir altruísmo e moralidade, ignorando que a existência de comportamentos cooperativos e de punições contra indivíduos egoístas não depende da existência de juízos morais. No presente artigo, apresento argumentos extraídos de discussões entre cognitivistas e não-cognitivistas e resultados de estudos na área da Psicologia moral a fim de esclarecer a importância de distinguir os dois conceitos mencionados. Concluo que a compreensão das diferenças entre altruísmo e moralidade conduz à identificação das diversas capacidades intelectuais envolvidas nos julgamentos morais e é essencial para o projeto de averiguar se a capacidade para julgar moralmente é uma adaptação biológica.
Tolstoi e Heidegger: Da morte indiferente à morte própria.
Authors: Pisetta Ecio Elvis
Published: April 2018

O texto oferece modesto estudo acerca da experiência da morte a partir da novela de Leon Tolstoi (1828-1910), A morte de Ivan Ilitch (1886) e de alguns conceitos desenvolvidos pelo filósofo alemão Martin Heidegger. Tolstoi desnuda a vida, tal como ele a vê. E o faz através de uma crítica à sociedade. Esta, para manter o status, foge e oculta toda real experiência da morte bem como da vida. Tolstoi não poupa descrições da vida pública como aquela que cultiva uma vida e uma morte indiferente ou impessoal. Neste contexto, o personagem representa o dramático nascimento do ser humano para sua singularidade. Desta forma, consideraremos o percurso apresentado pelo próprio livro, servindo-nos de descrições onde a sociedade e a ciência, a vida cotidiana e seus raciocínios e a experiência de uma morte própria possam ser visualizados.
Open Tasks in Mathematics: Experiences with one Problem Field
Authors: Pehkonen Erkki
Published: April 2018

In this paper, the task “Number Triangle” stands for problem fields. The problem field in question is planned by the author to be used in the Finnish comprehensive school. With its aid, our purpose is to show how open teaching acts in practice. The most important in these problem tasks is the way they are presented in teaching: A problem field should be offered to pupils little by little. And the continuation in the problem field depends always on pupils’ answers. The answers of problems are not given here, since they are not as important as pupils’ independent solving of problems. How far the teacher proceeds with the problem field in question depends on answers given by pupils.
A novel assessment and treatment approach to patients with Hashimoto’s encephalopathy
Authors: Laycock Kate , Chaudhuri Abhijit , Fuller Charlotte , Khatami Zahra , Nkonge Frederick , Stojanovic Nemanja
Published: April 2018

Hashimoto’s encephalopathy (HE) is rarely reported with only a few hundred cases published. Diagnosis is made in patients with an appropriate clinical picture and high antithyroperoxidase (anti-TPO) antibodies after infectious, toxic and metabolic causes of encephalopathy have been excluded. There is little objective data on the neurocognitive impairment in patients with HE and their improvement with treatment. We present the case of a 28-year-old woman with HE. Approach to management was novel as objective neuropsychological assessment was used to assess her clinical condition and response to treatment. Intravenous immunoglobulin (IVIg) as the first-line treatment instead of steroids. She responded well. The case illustrates that a different approach is required for the diagnosis and treatment of HE. A new diagnostic criteria is proposed that includes neurocognitive assessment, serum and CSF antibodies, an abnormal EEG and exclusion of other causes of encephalopathy. Furthermore, treatment should be tailored to the patient.

Learning points:

Neurocognitive assessment should be carried out to assess the extent of brain involvement in suspected Hashimoto’s encephalopathy pre- and post- treatment.

Treatment of Hashimoto’s encephalopathy should be tailored to the patient.

Unifying diagnostic criteria for Hashimoto’s encephalopathy must be established.
A Cloning-Free Method for CRISPR/Cas9-Mediated Genome Editing in Fission Yeast
Authors: Zhang Xiao-Ran , He Jia-Bei , Wang Yi-Zheng , Du Li-Lin
Published: April 2018

The CRISPR/Cas9 system, which relies on RNA-guided DNA cleavage to induce site-specific DNA double-strand breaks, is a powerful tool for genome editing. This system has been successfully adapted for the fission yeast Schizosaccharomyces pombe by expressing Cas9 and the single-guide RNA (sgRNA) from a plasmid. In the procedures published to date, the cloning step that introduces a specific sgRNA target sequence into the plasmid is the most tedious and time-consuming. To increase the efficiency of applying the CRISPR/Cas9 system in fission yeast, we here developed a cloning-free procedure that uses gap repair in fission yeast cells to assemble two linear DNA fragments, a gapped Cas9-encoding plasmid and a PCR-amplified sgRNA insert, into a circular plasmid. Both fragments contain only a portion of the ura4 or bsdMX marker so that only the correctly assembled plasmid can confer uracil prototrophy or blasticidin resistance. We show that this gap-repair-based and cloning-free CRISPR/Cas9 procedure permits rapid and efficient point mutation knock-in, endogenous N-terminal tagging, and genomic sequence deletion in fission yeast.
A comparative study of the reproductive traits and clustering analysis among different pig breeds
Authors: Kramarenko S. S. , Lugovoy S.I. , Lykhach A. V. , Kramarenko A. S. , Lykhach V. Ya.
Published: April 2018

The data were from 149 pigs from seven pig genetic groups raised in «Tavriys'ki Svyni» Ltd (Kherson region, Ukraine). The following genetic groups were included in our analyses: LW × LW (n = 19), LW × LN (n = 43), LW × PT (n = 13), LN × LN (n = 15), UM × LN (n = 23), UM × PT (n = 17) and UM×UM (n = 16). The objective this work was evaluation of animal reproductive traits using multivariate analysis. Variables measured and derived included total no. piglets born (TNB), no. piglets born alive (NBA), freq. of stillborn piglets (FSB), total litter birth weight (TLBW), average piglet birth weight (APBW), pre-weaning mortality in piglets (PWM), no. weaned piglets (NW), total weaning weight of litter (TWWL) and average piglet weaning weight (APWW). After standardization, multivariate analyses (Cluster analysis and Principal Component Analysis) were carried out using STATISTICA (StatSoft Ltd.) to place pig interbreeding combinations in groups in accordance with their degree of similarity and verify discriminatory capacity of the original traits in the formation of these groups. The tree diagram showed clear distances between the pig genetic groups studied. In the tree diagram obtained from the analysis of the distances between interbreeding combinations, two distinct groups (clusters) were seen, one with UM × LN and UM × UM animals, and the other with the rest of the pig genetic groups in the study. The eigenvalues for the first two Principal Components (PC1 and PC2) together accounted for near 65% of the variance of the pig’s reproductive traits. The first principal component (PC1) explained 34.9% total variation. It was represented by significant positive loadings for TNB, NBA and TLBW. The second principal component (PC2) accounted for an additional 29.7% of the generalized variance and was represented by significant loadings for NW, TWWL and APWW. Thus, PC1 defined no. piglets and total litter birth weight, while PC2 represented no. weaned piglets and total weaning weight of litter. In conclusion, the multivariate methods (Cluster Analysis and PCA) has been proven to be a very effective method to obtain a synthetic judgment of reproductive traits in pig.
Morphological features of eggs depending on the chicken genotype by mutations T+3737C and A+3971G in insulin locus
Authors: Shulika L. V.
Published: April 2018

Quality of eggs, including morphological features, affect on their dietary properties, incubatory and trade characteristics. This gives background to affirm necessity of selection work in direction of improving these features additionally to chicken egg-laying qualities. But selection by complex of traits requires long time and significant resources. To increase effectiveness and speed up the process of selection molecular genetic markers are used. Such approach is named marker-assisted selection. One of genes, that is of interest in the context of marker-assisted selection, is insulin gene, which product takes part in the regulation of animal metabolism. The gene is polymorphic in chicken, particularly, there were found mutations T+3737C and A+3971G, located within second intron and 3'-UTR-region, respectively. The current work is devoted of studying of morphological features of eggs depending on the genotype by above-mentioned mutations. The research was conducted on the chicken population of line 38 of Rhode Island Red breed. The following features were studied as yolk weight, glair weight, shell weight, yolk percent, shell percent, mean shell thickness, egg form index. Measuring was made on 30th and 52th weeks of layer age. Comparison of groups with different genotypes was conducted using t-criterion or U-criterion depending on the distribution normality. There was no significant associations between genotype by T+3737C mutation and egg morphological features within investigated line. By mutation A+3971G it was shown, that eggs of layers with AA genotype differ significantly (P ≤ 0.05) from eggs that received from chickens with AG and GG genotypes by egg form index on 30th week. Also, significant (P ≤ 0.01) association was revealed for yolk percent on 52th week of life and genotype on this mutation. Namely, chickens with AA genotype layed eggs with lower yolk percent than chickens with AG and GG genotypes. Similar situation was observed relatively to yolk weight but difference was reliable (P ≤ 0.05) only between homozygotes AA and GG. According to the results, it is possible to consider mutation A+3971G as the molecular genetic marker of morphological features of chicken eggs.
Options for genetic-biochemical markers in connection with dairy productivity
Authors: Bodnaruk V. Y. , Bodnar P. V. , Zhmur A. J. , Muzyka L. I. , Kropyvka Y. G. , Orihivsjkyj T. V. , Pоslavska J. V.
Published: April 2018

The purposeful creation and use of highly productive animals largely depends on information laid down in their genes that control valuable economic useful features. The actual task is to identify and use marker genes that are responsible for displaying a certain sign of animals, in particular, the level of milk productivity. To create new forms of animals with a combination of high productivity and adaptability to various factors of external influences, for this purpose, for a long time in Ukraine, work was carried out to improve the Simmental cattle using the Red-Spoptted Holstein breed. It was supposed to that the increase in the number of animals with a part of the heredity of Red-Spoptted Holstein to 70–80% will allow to receive herds, which are characterized by good adaptive capacity, fat-dairy, high growth and meat qualities, as well as high milk yield. The searches were carried out on cows (pure-bred Simmentals and between ½ and ¾ in terms of the heredity of the Red-Spoptted Holstein breed), which were divided into groups with different levels of milk productivity for the first lactation (on the milk yield and content of fat in milk). The genetic structure was estimated by genetically determined polymorphism of groups of genetic-biochemical systems. Experiments were conducted on erythrocytes and blood plasma.Blood from animals was taken from a jugular vein in a heparin test tube. Polymorphism of proteins and enzymes was evaluated using a method of electrophoretic protein separation in 13% starch gel in horizontal chambers followed by histochemical staining. The obtained data testify that differences of animals on such parameters of dairy as milk yield for 305 days of the first lactation and the content of fat in milk is accompanied by unequal differentiation of their genetic structures by different genetic-biochemical systems. With the difference in milk yield, the most pronounced changes are observed with the transferrin locus, and in the analysis of groups of animals differing in the fat content of milk – by the AM-1 locus. This suggests that, based on such cases of negative correlations between these features, specific interlocal interactions may be based on different genetic and biochemical systems. It can be argued that the development of such searches may lead to the discovery of characteristic genotypes by a complex of genetic-biochemical systems, closely related to the corresponding complex of economic useful features.
Improvement of the method of preparation of ram-sires for the semen col-lection
Authors: Sharan M. , Hrymak K. , Yaremchuk I.
Published: April 2018

The results of studies on the semen production of ram-sires of three European meat breeds, such as texel, oxford down and Vvalais blacknose in the process of preparing for a breeding season or taking semen on an artificial vagina for further use for deep freezing, are presented. During the preparatory period, from each group of rams, 120 ejaculates were obtained, 12 ejaculates in the first and second subperiods, 18 ejaculates in the third and fourth and 60 ejaculates in the fifth subperiod. Differences in the semen production performance of the breeders of the studied breeds were determined. At the end of the preparatory period, the volume of the ejaculate of the rams of the oxford down breed was greater than that of texel by 34.8%, of the valais blacknose sheeps – by 53.1%. When comparing the volume of the ejaculate of the rams of the breed of texel and valais blacknose sheeps, the latter was lower by 12.0%. The concentration of semen in the ejaculate was the highest in the Valais rams and amounted to 3.24 billion/ml, which is 3.9% higher than the oxford down rams, and 14.9% is the texel breed. According to the activity of fresh semen, the difference between the breeds was insignificant and ranged from 2.4 to 4.3%. However, the activity of the frozen-thawed semen varied from 6.4% to 14.0%, the highest among the breeders of the oxford down ‒ 3.65 points, the lowest ‒ 3.20 points in rams of the Valais Blacknose breeds. A slight 2.2 – 4.4% deviation between breeds was noted for the resistance of semen to cryopreservation. The smallest number of cryopreserved semen with acrosome damaged in oxford down breeders was found to be 39.14%, which is 3.5% less than that of texel sheep breed and 6.7% more than that of valais blacknose breed breeders. The conducted researches have experimentally confirmed that indicators of semen productivity of ram-sires are improved in accordance with the term of their preparation. Therefore, to train rams to give semen to artificial vagina before the beginning of the steaming season, or to obtain it for cryopreservation, followed by artificial insemination of sheep, is required after careful preparation of the rams for 50‒60 days, with the provision of optimal conditions of keeping and feeding. The main studied parameters of sperm production of ram-sires in the preparatory period, significantly higher values of volume of ejaculate, activity of fresh and preserved semen, their resistance to freezing and the preservation of acrosomes in the breeders of the oxford don was established. The lowest studied indices were found in rams of the valais blacknose breed. Texel breeders occupy an intermediate position for the indicated indices between the studied breeds.
Efficiency of use technological feed additive
Authors: Levytskyy T. R.
Published: April 2018

The contamination of animal feed with mycotoxins is a threat to the safety of feed and represents a worldwide problem for livestock breeding. One of the most effective ways of protecting animals from mycotoxicosis is the use of feed additives with adsorption properties. The research was conducted on the basis of the laboratory of control of feed supplements and premixes of the State Scientific-Research Control Institute of Veterinary Preparations and Feed Additives. In order to carry out researches, a feed additive «Liatoksyl» produced by Ltd. «Sanfort-P» was used. Feed additive «Liatoksyl» is a powder of gray color with a specific odor. The composition of the feed supplement includes zeolite, bentonite, silicon oxide, fumaric acid, citric acid, and succinic acid. Feed supplement «Liatoksyl» belongs to the category of technological additives. The study of the effectiveness of the use of the feed additive Lyatoxil in relation to the ability to inhibit or reduce the absorption of mycotoxins, promote their elimination. Established, the studied feed additive possesses pronounced adsorption properties in relation to T2-toxin and fumonisins. The feed additive in acidic environment (pH 2) adsorbed 185 μg/l of fumonisin from 200 μg/l, which is 92.5%. After incubation in a weakly alkaline environment, the concentration of fumonisin in the supernatant was 3 μg / L. The adsorption activity of the feed supplement with respect to the T2 toxin was lower compared to fumonisins. Thus, in acidic environment (pH 2) adsorption was 179 μg/l of T2-toxin from the introduced 200 μg/l, which is 89.5%.The practical efficiency of the feed supplement when mixed with toxin T2 and fumonisin was mixed, but substantially lower than in screening studies. The practical efficiency of the dietary supplement «Liatoksil» in the screening study for fumonisin was 90.5%, in relation to the T2 toxin – 86.5%. This is evidently due to the fact that the fodder mixtures contain mono- and disaccharides, fatty acids, triglycerides, inorganic salts, etc., which to a certain extent react with the feed additive, reducing its effectiveness against mycotoxin. The practical efficiency of the fodder additive «Liatoksil» when applied to the feed in different doses relative to fumonisin was 70.7–74.1%, in relation to the toxin T2O – 36.1–40.5% The greatest effect was achieved when adding the feed additive «Liatoksil» to the feed in doses of 2–5 g/kg.
The use of protein-vitamin-mineral feed additives in animals
Authors: Hutsol A. V. , Syrovatko K. M. , Vuhliar V.S.
Published: April 2018

The article provides overview and analysis of scientific publications and developments on the use of protein-vitamin-mineral supplements for farm animals and poultry. The analysis of various components that were introduced into diets containing of protein-vitamin-mineral supplements in feeding farm animals and the importance of biological significance for the livestock sector and the as a whole is carried out. It is summarized and analyzed the foreign and domestic editions, namely – information on the qualitative part taken by protein-vitamin -mineral supplements in the total production of feed for farm animals and poultry. The recipes, composition of the component ratio for different species of animals and poultry as well as the percentage for certain sex-age groups of animals are given. It is established that the expediency of proper mixing of feed positively affects the quality of the finished product and, therefore, the provision of animal increment, which are the main requirements of the modern livestock market in Ukraine and abroad. Modern researches of scientists and practitioners on protein-vitamin-mineral supplements, as well as the market of domestic and foreign manufacturers of products for farm animals and poultry are analyzed. The dependence of introducing into the feed additive of new components, which both improve productivity, digestibility, and improve the quality of finished products, is studied and therefore reduces feed costs by 1 kg of live weight. The data of digestibility of fed protein-vitamin-mineral supplements in the composition of rations, hematological parameters of blood, morphological data, as well as productive indicators are average daily increments, depending on the growth phase of farm animals and poultry. The article presents advanced establishments-developers of protein-vitamin-mineral supplements, as well as producers of new high-quality equipment for mixing BWMD and components of the diet for different periods and sex-age groups of farm animals and poultry in the domestic and foreign markets.
Factores predictores de la satisfacción vital en estudiantes de educación de la Universidad Surcolombiana
Authors: Casadiego Cabrales Alix María , Trujillo Vanegas Catalina , Gáitan Osorio Clara Elsa , Chávarro Medina Gloria Mercedes , Cuervo Leidy Carolina , Díaz Perdomo María Liliana
Published: April 2018

Preguntarse por la satisfacción vital en una facultad de educación permite un acercamiento a expectativas de futuros agentes formadores de la sociedad. Desde esa perspectiva, el objetivo de este estudio es analizar qué factores predicen la satisfacción vital del estudiantado de Educación de la Universidad Surcolombiana y compararlo con otros constructos en función de la variable sexo. Se realizó un estudio analítico y transversal con 408 participantes. Se recogieron datos a través de la Escala de Satisfacción con la vida en Adolescentes (ESVA), Versión española del Trait Meta-Mood Scale (TMMS-24), Cuestionario de Esquema Interpersonal Asertivo (AISQ) y Autoconcepto (Forma AF-5). Los resultados evidenciaron cómo la satisfacción vital fue predicha por la dimensión familiar del AF-5 (autoconcepto) (β = .274 [.210 - .324]; p < .001) y dimensión de reparación emocional del TMMS-24 (inteligencia emocional) (β = .201 [.144 - .231]; p < .001). No hay diferencias significativas en función de la variable sexo. Los resultados se discuten en relación con la literatura existente.
APPRAISAL as a framework for understanding multimodal electronic feedback
Authors: Cunningham Kelly J.
Published: April 2018

Given the multimodal nature of new modes of electronic feedback, such as screencasting, there is a need for the application of robust, theoretically grounded frameworks to capture linguistic and functional differences in feedback across modes. The present study argues that the appraisal framework, an outgrowth of systemic functional linguistics (SFL) that focuses on evaluative language and interpersonal meaning, can provide understanding of and discernment between technology-mediated modes of feedback. The study demonstrates this potential through an appraisal analysis of a small corpus of 16 screencast video and 16 text (MS Word comment) feedback files given to eight students over four assignments in an intermediate ESL writing class. The results suggest possible variation between the video and text feedback in reviewer positioning and feedback purpose. Specifically, video seems to position the reviewer as one of many possible perspectives with feedback focused on possibility and suggestion, while the text feedback seems to position the reviewer as authority with feedback focused on correctness. The findings suggest that appraisal can aid in the understanding of multimodal feedback and identifying differences between feedback modes.
Rheological properties of emulsion of crude oil and water
Authors: Hai Duong Ngoc , Diep Nguyen Van , Hien Ha Ngoc , Duc Nguyen The , Thuc Phung Dinh , Khang Nguyen Thuc , Bich Ha Van , Son Tong Canh
Published: April 2018

In the paper the rheological properties of crude oil of White Tiger oil-field (Vietnam) and its emulsion with sea-water, including measurement results and analytical approximation formulae for wide range of pressure, temperature and water concentration, are presented. As it is known, the crude oil of White Tiger oil-field is a high-paraffin and high-viscous oil. At the low temperature (T ≤ 40°C) it behaves as non-Newtonian fluid of Bingham-Shvedov group. Therefore, beside the effective viscosity, the effective dynamic shear stress is also measured and approximated. The rheological properties of crude oil and emulsion of crude oil and water are also measured and approximated for the case when the mixture contains 0.1% chemical reagent ES-3363.
On quasiperiodic oscillations of a nonlinear dynamic system of Liapunov type with time lag
Authors: Can Le Xuan
Published: April 2018

The paper is concerned with the investigation of the quasiperiodic oscillations of a nonlinear dynamic system of Liapunov type with time lag. The following results are obtained:- The necessary and sufficient conditions for the existence of the quasiperiodic solution describing the oscillating processes.- The approximate quasiperiodic solution in the power series.- The quasiperiodic oscillations of a nonlinear dynamic system of Duffing type with the quasiperiodic perturbations.
DETERMINATION OF THE VIBRATION CHARACTERISTICS OF BRIDGE IN DYNAMIC DIAGNOSIS
Authors: Menh Nguyen Cao , Khang Pham Xuan
Published: April 2018

On the basis of dynamic diagnosis equipment VDIK-1-10 of Russia and finite element method (FEM), the procedures for finding the exciting places and measurement points of vibration are presented. They give us clear information of diagnostic parameters. After data processing we can determine the dynamic characteristics parameters of the bridge. The parameters obtained are used to updating modeling parameters of FEM and therefore the technical state of the bridge could be estimated. An example for investigation of prestressed concrete bridge with 33 m span and 10m width is illustrated.
A method of constructing programmed motions of a mechanical system
Authors: Sanh Do
Published: April 2018

In the paper the method for constructing programmed motion is represented. The requirements for the programmed motion are treated as ideal constraints in analytical mechanics. The programmed motions expressed in Lagrange coordinates and in quasi coordinates are investigated. By applying the form of equations of motion of a constrained mechanical system [7], a schema for calculating programmed motions has been established. By this schema the errors of realizing programmed motions have been reduced and controlled. For illustration of the method some examples have been investigated.
Some remarks on the computation via SAMCEF and the semi-moment theory for cylindrical shells
Authors: Nhu Ngo Huong , Hung Nguyen Dang
Published: April 2018

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Calculation of the turbidity transport in Dinh An coastal zone
Authors: Vinh Phan Ngoc , Ninh Pham Van , Viet Lien Nguyen Thi
Published: April 2018

In the paper, the results of the calculation of turbidity transport in Dinh An coastal area by using the software named RDPOL based on random walk techniques developed by CMERCS are presented. In previous study, the carried out numerical model has been verified well by remote sensing images for classification of the turbidity distribution of Red, Thai Binh, Han, Thu Bon, Sai Gon - Dong Nai and Mekong estuaries. In this study, computed results, that the complexity of the bathymetry, the river flow of the Mekong River system and seasonal monsoon winds are taken into account, are compared with the observed data at 19 stations including 10 stations in March and 9 stations in October, 1997 in Dinh An coastal zone and show its reasonable agreement. Some maps of turbidity distribution in the area have been carried out and several remarks have been made.
The Van der Pol's system under external and parametric excitations
Authors: Dinh Nguyen Van
Published: April 2018

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Generalized diffusion theory of hydrodynamical particle migration in suspensions. Part 1: The case of equal densities
Authors: Diep Nguyen Van
Published: April 2018

The general continuum theory has been developed for two-phase flows of fluid with deformable particles, where the micro-deformation of particles and the relative motion between phases have been taken into account [1-3]. This paper is concerned with using the simplest model from developed general theory for modeling of particle migration in suspensions- one of the most important and complicated aspects of particle-liquid two-phase flows, that has been observed and studied by many authors. For this purpose it is considered the motion of Newtonian fluid-rotating rigid spherical particles two-phase continuum with specialized nonlinear constitutive equations, when the particle and fluid have equal densities. The obtained equation system has been used for studying quantitatively particle migration problem in the circular Couette flow.
The optimum of wave forces acting on axisymmetric, paraboloidal bodies
Authors: Dat Nguyen Tien
Published: April 2018

In this paper, wave forces acting on axisymmetric paraboloidal bodies are considered by using numerical model presented in [1]. The optimum of wave forces is obtained in the case of constant Volume and constant wetted surface of the bodies.
The homogenization method in the problem of a spherical layered elastic composite hollow
Authors: Toan Pham Thi
Published: April 2018

In this paper, by using the homogenization method for the partial differential equations we study the statics and dynamics problems of a spherical layered elastic composite hollow. We can determine the approximate solution with an arbitrary accuracy, by solving a recurrent series of problems with homogeneous material, where the solution of problem in zero degree (the effective modulus theory) is initial data.
Interaction of the elements characterizing the quadratic nonlinearity and forced excitation with the other excitations
Authors: Dao Nguyen Van
Published: April 2018

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Effective unsteady flow calculation method by the Preissmann Scheme for looped channel network
Authors: Kubo Naritaka , Thanh Do Huu
Published: April 2018

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Prediction of the cohesive crack growth in concrete beams in bending by mean of fracture mechanics and the finite element method
Authors: V. Tran Tu
Published: April 2018

The text presents the theoretical base for the construction of the program CGP-TROl. The fictitious crack model and the finite element method are employed for analyzing. This program is created to investigate two-dimensional models for the initiation and growth of the I-mode crack in notched beams in bending. The final result of the fracture analysis is the load-deflection diagram for the prediction of the cohesive crack growth in concrete notched beam in bending.
The scientific bases of autocontrol with vibration phase for a resonance beating-vibration system with two degrees of freedom driven by debalances
Authors: Tuan Tran Van , Sanh Do , Thach Luu Duc
Published: April 2018

In the paper it is introduced a method for studying dynamics of beating-vibrators by means of digital calculation with the help of the machine in accordance with the needs by the helps of an available auto regulation system operating with high reability.
Một thủ tục hòa hợp hai bước giữa trường độ cao địa thế và gió tại vùng nhiệt đới
Authors: Que Nguyen Dang
Published: April 2018

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The coastal refraction-diffraction wave propagation model
Authors: Dat Nguyen Tien , Manh Dinh Van , Son Nguyen Minh
Published: April 2018

A mathematical model on linear wave propagation toward shore is chosen and corresponding software is built. The wave transformation outside and inside the surf zone is considered including the diffraction effect. The model is tested by laboratory and field data and gave reasonables results.
Some results for analyzing time-dependent frequencies of vibration signals
Authors: Tri Tran Duong
Published: April 2018

This paper provides some results for analyzing relations between frequencies and time of vibration signals. These results have been obtained by studying the properties of wavelet transform, the spectral analysis, the Short-time Fourier transform and by using the toolboxes in the software parked MATLAB. We have created the corresponding PC programs in order to realize algorithms and for the illustration of results by exploring examples.
On the interaction between self-excited and forced oscillations
Authors: Cau Thai Manh , Khang Nguyen Van
Published: April 2018

The influence of the exciting force to resonant characteristics in a model of the small oscillation is investigated. Averaging method is used to determine resonant stationary solutions of all possible resonant oscillations and their stability. The numerical simulations used for oscillations in time domain and the analytic approaches give consistent results.
A form of equations of motion of constrained mechanical systems
Authors: Sanh Do
Published: April 2018

In the present paper a form of equations of motion of a constrained mechanical system is constructed. These equations only contain a minimum number of accelerations. In the other words, such equations are written in independent accelerations while the configuration of the system is described by dependent coordinates. It is important that the equations obtained are applied conveniently for. the mechanisms in which the use of independent generalized coordinates is not suitable.
Waves reflected by solid wall in the mixture of liquid with vapour bubbles
Authors: Hai Duong Ngoc , Tuan Nguyen Van
Published: April 2018

The liquid and gas mixtures are met in many natural and industrial processes. In the paper the results of investigation of waves reflected by solid wall of the stationary shock waves with moderate intensities or the transient pulses propagated in the mixture of liquid with vapour bubbles are presented. The effect of initial conditions, shock strength, size of the bubbles and volume fraction of vapour phase on the behaviour of the waves reflected by solid wall is studied.
Analysis of cracked plate membrane problem using Metis finite element model
Authors: Hung Nguyen Dang , Ngoc Tran Thanh
Published: April 2018

A conformable and convergent finite element technique is presented for calculation of stress intensity factors for cracked plate membrane problem, which is based on the formulation of the hybrid displacement finite element method, named "Metis elements". In order to achieve a high convergence, this element is combined with an isoparametric element of Barsoum, in which,  the mid-side nodes are moved to quarter-point position. Many examples are numerically tested for evaluation this model, show that the element HSM has a good performance for calculation of stress intensity factors.
A selection of parameters of tuned mass damper for multi-degree-of-freedom systems subjected to second order coloured noise excitation
Authors: Anh Nguyen Dong , Sang Nguyen Chi
Published: April 2018

Among the fundamental concepts for structure control, passive control systems have a significant role since they do not require additional energies produced by actuator. The basic of passive control is to incorporate a secondary system into the primary structure in order to transfer a part of the vibration energy of the primary system into the secondary one. In the paper the design of an optimal tuned mass damper (TMD) for a structure subjected to second order coloured noise excitation is investigated in order to minimize the sum of response mean squares of components of the primary system with a given ranking priority.
Dynamics of a fin driven boat - modeling and simulation
Authors: Tran H. T. , Bikowski S. , Wolf C. D. , Maiber P.
Published: April 2018

In this paper the motion of a small sport boat running on a lake is simulated using alaska tools when the external forces and torques from water and excitation force from a person are applied. Using the results from measurements we have done some validations.
Stability analysis of steel frames with semirigid connections and semirigid connections with rigidzones
Authors: Anh Vu Quoc
Published: April 2018

To obtain an accurate insight into the behavior of most realistic steel frames, joint flexibility should be allowed for in the analysis since connection flexibility affects both force distribution and deformation in beams and columns of the frames. This paper proposes a method to establish the geometric stiffness matrix and stiffness matrix for semirigid beam element and semirigid beam element with rigidzones. The proposed method can also applied to analyse frame stability with rigid, semirigid and simple connections with rigidzones or without rigidzones. In addition, an approach that evaluates the effective lengthμ factor, thecritical axial load of column in plane frames with rigid, semirigid, and simple connections is also presented.
A method for selecting optimal sections for members of skeletal structures
Authors: Nha Chu Duc
Published: April 2018

This paper presents a simple method for selecting optimal sections for members of skeletal structures from an initially given set of sections. This is an extension of evolutionary structural optimization (ESO) to the sizing optimization problem with discrete design variables. Member sensitivity index for section sizing is derived from the optimality criterion. Optimization process is an iterative process of analysis, sensitivity calculation and section selection until optimality criterion is satisfied or constraints are violated. The proposed optimization procedure has been implemented into a structural analysis and optimization program called FEMOPT written on MATLAB programming language. Illustrative examples demonstrate the effectiveness of the proposed method.
On solution for the problem of spreading of acid water in canals
Authors: Dac Nguyen Tat , Khu Nguyen Phi
Published: April 2018

It is dealt within this study a one-dimensional mathematical and statistical model for acid water transport in canals including a case study in the Saigon river with data provided by Environment Protection Centre - HCM city. It is shown that based on statistical analysis of data collected in the field the computation will be improved in sense of making their solutions more reliable
Dynamic amplification factor in the problem of inclined impact
Authors: Khoi Phan Van
Published: April 2018

The purpose of this article is to investigate an advanced method for presentation of the impact problem between the rigid body and the elastic beam. Results show that this method gives a solution which is more general than the solutions illustrated in the textbook of Strength of Materials. The developed formulations may expand the applied sphere of the dynamic amplification factor (DAF), kd as in the case of driving inclined piles.
Analysis of exceedance probability of displacement response of randomly nonlinear structures
Authors: Hung Luu Xuan
Published: April 2018

The paper presents the estimation of the exact exceedance probability (EEP) of stationary responses of some white noise-randomly excited nonlinear systems whose exact probability density function can be known. Consequently, the approximate exceedance probabilities (AEPs) are evaluated based on the analysis of equivalent linearized systems using the traditional Caughey method and the extension technique of LOMSEC. Comparisons of the AEPs versus the EEP are demonstrated. The obtained results indicate important characters of the exceedance probability (EP) as well as the influence of nonlinearity over EP. The evaluation of the applied possibility of the proposed linearization techniques for estimating AEPs are made.
Stability of viscoelastic plates in combined forces
Authors: Doanh Pham Quoc , Tan To Van
Published: April 2018

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Some results in studying multilayered composite plates
Authors: Dat Pham Tien , Thinh Nguyen Hoa
Published: April 2018

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Study on Positron Annihilation Rate in Water
Authors: Nghiep Tran Dai
Published: April 2018

Measurement system for determination of positron annihilation rate is consisted of HPGe detector, multichannel analyser and Na$^{22}$ positron source. The result of annihilation rate measurement in wetted filter paper is treated. The formula of energy transfer model is used for explanation obtained data quantitatively.
The Propagation of the Electromagnetic Wave in Multilayers Structures Composed from Cholesteric Liquid Crystals under the Influence of the External Electric Field
Authors: Hang Pho Thi Nguyet , Dung Pham Thuy
Published: April 2018

The tensor solution for the electromagnetic wave being in quadrature with the surface of the cholesteric liquid crystal under the influence of the external electric field along axis of swing of crystal, has been found. Description of the reflection, transmission of the electromagnetic wave in multilayer structures composed from cholesteric liquid crystals have been shown. Futher the dependence of the reflection spectrum on the polarization of the incident beam and magnitude of the external electric field are determined.