bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving the quality of raw milk and yogurt
Authors: Ananyeva T. V. , Ostroukhova V. I.
Published: August 2021

Milk is a part of many food products. In the expert assessment of the quality of raw materials, primary attention should be paid to its microbiological safety, since poisoning with dairy products is a common cause of diseases of the gastrointestinal tract. The experiment has been carried out on the base in the Teaching and Production Livestock Farm in the Federal State Budgetary Educational Institution of Higher Education “Russian State Agrarian University – Moscow Agricultural Academy named after K. A. Timiryazev” (Moscow). The purpose of the research was to improve the quality indicators of raw milk and yogurt. The method of processing raw milk, which reduces the number of potentially dangerous microorganisms in the products produced from it, has been studied. During the experiment the influence of electromagnetic radiation on organoleptic and physic and chemical parameters has been observed; the quantitative and qualitative composition of milk and yogurt microorganisms has been evaluated. The samples of raw materials had a uniform consistency without sediment and flakes, the color was milky white, and the smell was characteristic of natural cow’s milk. Electromagnetic treatment did not affect the main elements of the chemical composition of milk: the mass fraction of dry substances, fat, protein and lactose. In the experimental samples of raw milk after electromagnetic pulses treatment, the decrease in the growth rate of microorganisms including Quantity of Mesophilic Aerobic and Facultative Anaerobic Microorganisms (QMAFAnM), yeast and mold, has been noted. No bacteria of the Staphylococcus aureus and Escherichia coligroups have been found in the milk samples. The electromagnetic field had the negligible effect on the amount of lactic acid microorganisms in the raw material. During the experiment, there was no negative influence of electromagnetic radiation on the organoleptic, physic and chemical and sanitary-hygienic parameters of yogurt. The issues of ensuring the microbiological safety of raw milk have been described and the method for optimizing the sanitary and hygienic parameters of yogurt in accordance with the current requirements of regulatory documents has been suggest in the article.
The planning, rationing and organization of work on technical maintenance of machinery and equipment in animal husbandry
Authors: Kovalyev L. I. , Kovalyev I. L. , Kostomakhin M. N.
Published: August 2021

Maintenance and repair of livestock machinery and equipment is carried out as a rule by specialized repair and service enterprises on the basis of service contracts in accordance with the procedure established by law. However, with the renewal of the park’s farms with machines and equipment with automated and computerized process control, as well as the reconstruction of dairy farms and complexes, it became necessary to have a production base and highly qualified specialists for the maintenance of equipment. The most important and key provisions of the improved methodology of planning and accounting of work in the technical service of animal husbandry with the use of a number of standards are given, some features of accounting and planning of these types of work have been noted. The concepts of “repair unit” and “category of complexity of technical service” have been defined. The general provisions of the methodology for calculating costs and determining the cost of carrying out maintenance and repair of livestock equipment have been considered. On the base of calculations, the average total cost standards for carrying out maintenance and repair of livestock equipment have been established. These standards greatly simplify the planning of costs during the operation of equipment, and also allow us to determine the cost of maintenance and repair at different stages of the creation of new machines.
The effectiveness of the inclusion of domestic enzymes in the compound feed to increase the egg production of laying hens and the quality of eggs
Authors: Mikhailova L. R. , Zhestyanova L. V. , Lavrentiev A. Yu. , Kostomakhin N. M. , Sherne V. S.
Published: August 2021

Compound feed are subject to requirements for their composition, since they use several types of grains that contain anti-nutritive substances that reduce the digestibility and use of nutrients. One of the tasks of domestic poultry farming is to reduce losses by increasing the digestibility and accessibility of feed. Among the most effective ways to solve this problem is to add enzymes to the feed of poultry. The inclusion of enzyme drugs in the composition of compound feed contributes to the inactivation of anti-nutritive substances, which contributes to an increase in the coeffi cient of digestibility of nutrients. The purpose of the work was to establish the feasibility and eff ectiveness of the enrichment of compound feed used in the production technology of chicken eggs with mixtures of enzyme drugs of domestic production of Amylosubtilin G3x, Cellolux-F and Protosubtilin G3x. Three groups of laying hens with 57 heads in each have been formed: a control group and two experimental groups. The duration of the experiment was 420 days. Laying hens of the control group have been received farm compound feed depending on their age. Laying hens of the 1st experimental group have been received compound feed of the control group enriched with the enzymes Amylosubtilin G3x and Cellolux-F depending on the age. In the compound feed of laying hens of the 2nd experimental group enzyme drugs were additionally introduced depending on the age Amilosubtilin G3x and Protosubtilin G3x. Higher egg production rates have been observed in the 1st experimental group – 357,81 eggs, which was 6,48 % higher than in the control group and 1,84 % higher than in the 2nd experimental group. The weight of eggs of laying hens of the 1st experimental group was 1,85 g or 2,97 % more, and the 2nd experimental group was 0,7 g or 1,12 % more than in the control group. The diff erence between the egg weight in laying hens of the 1st and 2nd experimental groups was 1,85 % or 1,15 g. The lowest feed consumption of 1,37 kg for the production of 10 eggs was in the laying hens of the 1st experimental group, which was less than the indicator of the control group by 10,94 and by 4,2 % than in the 2nd experimental group.
Influence of the complex of amino acids and silicon dioxide on the productivity and quality of meat of broiler chickens
Authors: Nikulin V. N. , Mustafina A. S.
Published: August 2021

In order to increase the meat productivity of poultry scientists around the all world are working to improve the breeding traits and technologies of housing and feeding. However, the efficiency of poultry meat production on an industrial basis depends not only on the strengthening and inheritance of breed qualities, but also on a complete and balanced feeding, including the use of new feed additives. All this generally affects the duration of rearing, the average daily and absolute live weight gains, the biological value and nutritional value of poultry meat produced in industrial conditions. The purpose of the work was to study the effect of the amino acid complex and silicon dioxide on the productivity and quality of broiler chicken meat. The paper scientifi cally substantiates and experimentally proves the effectiveness of using a rational dose of ultrafine silicon dioxide (300 mg/kg of feed) and the complex of amino acids (arginine – 7 g/kg, lysine – 6 g/kg, methionine – 2 g/kg) in the rearing of broiler chickens. Data on the positive influence of the studied factor on the consumption, digestibility and use of feed nutrients, as well as meat productivity and quality of broiler chicken meat have been obtained. The dependence of meat productivity and quality of chicken meat on physiological and biochemical parameters has been proved. Analysis of the results of the production experiment has been shown that the livability of poultry in the experimental group was higher than the control group by 1,4 %. This made it possible to reduce feed consumption to 100 g/head, and feed consumption per 1 kg of chicken growth in the experimental group by 9,2 %. Activation of metabolic processes of the body of broiler chickens of the experimental group contributed to the increase in their live weight, which increased the weight of the gutted carcass, the yield of meat by 13,8 %, and meat with off al for sale by 18,0 %. The efficiency of the complex application of amino acids and silicon dioxide in the production of poultry meat is economically justified.
Numerical simulation of high-velocity impact effect on spacecraft structure
Authors: FEDOROV Mikhail Yu. , KRAUS Evgeny I. , SHABALIN Ivan I.
Published: August 2021

Anthropogenic space debris pose a serious threat to operation of spacecraft (SC), including a real threat of damage and destruction of Soviet spacecraft carrying Nuclear Power Systems (NPS) onboard, which ceased their active functioning in orbit thirty years ago.
Collisions of space debris with elements of SC structure may both have catastrophic consequences and cause local damage (for example, penetration of thermal control elements), resulting in the loss of spacecraft ability to function, or loss of some of their functionality.
In the case of SC carrying NPS, an impact on the structure may result in debris with residual radioactivity, which calls for a continued focus on the status of this type of spacecraft in disposal orbits.
In order to predict generation of space debris in near-Earth space, to evaluate SC survivability, as well as to develop engineering facilities for protection, the software package REACTOR was developed, which makes it possible to use a desktop computer to solve the problems of impact effects on complex technical objects including the function of computing the number of generated fragments (debris) and their velocity spectra.
As a subject for research, a schematic SC model and a space NPS REACTOR model were constructed, calculations have been performed. As a result of calculations, qualitative and quantitative characteristics of the resulting fragments were obtained.
Key words: space debris, spacecraft, collision, software package, computer, fragments, models, calculation nuclear power system.
A review of exploratory studies at RSC Energia into high-temperature voltage conversion systems for an electrically-propelled transportation spacecraft
Authors: SINYAVSKIY Viktor V. , TROITSKIY Stanislav R.
Published: August 2021

The paper presents studies conducted at RSC Energia that looked into the feasibility of developing a high-temperature high-power voltage converter of a low-voltage space power supply system for an electrically-propelled space transportation spacecraft based on classical voltage conversion systems using electroplasma gates (key elements) and high-temperature transformers. It provides electrical schematics fro voltage conversion systems. It presents results of experimental studies on lab prototypes of electroplasma gates with electrical power of tens and hundreds kilowatts, which have demonstrated that in principle it is possible to use them as a basis for development of high-temperature radiation-proof voltage converters with mass fraction of ~0.01 kg/A for such power sources as nuclear power-supply systems with sub-megawatt and megawatt thermionic converter reactor. It provides a rationale for selecting the voltage conversion frequency in systems without forced cooling. It provides an experimental proof that in principle it is possible to implement high-temperature transformers with 600°С operating temperature level, and gives recommendations on selection of materials.
Key words: space power system, electrically-propelled transportation spacecraft, voltage converter, electroplasma gate, high-temperature transformer, conversion frequency.
Past experience and future prospects for launching our country's small spacecraft from Plesetsk launch site
Authors: BASHLYAEV Nikolay A. , NIKOLAEV Aleksey Yu. , DUGA Vadim V. , MOSIN Dmitriy A.
Published: August 2021

The paper provides an integrated analysis of the problem of the fast growing field of development and operation of Small Spacecraft (SS) constellations and participation of domestic launch site Plesetsk in solving this problem. It reviews the history of launches from Plesetsk, and describes the current status of work to build up and replenish SS-based orbital constellations.
It describes major methods of SS launches. When describing multiple launches of SS on heavy launch vehicles it cites foreign practices of SpaceX Company, as well as lays down the prospects for development of our country’s heavy launch vehicles. As for the small-lift launch vehicles, it cites the experience of launching from Plesetsk of launch-vehicles Rokot and Soyuz-2 Phase 1v. For the super-small-lift launch vehicles, it cites the experience of USA and PRC, as well as our country’s development project of the launch vehicle Irkut, which is planned to be launched from Plesetsk, among other places.
As for changes in the configuration of ground space infrastructure, the paper points out a trend towards processing SS at a single common processing facility (there is no need to construct processing facilities for each specific small spacecraft). The paper presents general trends in the system for operation of space facilities. The trends towards standardizing mechanical handling equipment in particular, and processing facilities in general, make it possible to lower development costs and speed up development schedules for advanced small spacecraft. Reducing small spacecraft processing time has a beneficial effect on the operational efficiency of the launch campaign, while the use of mobile checkout equipment makes it possible to quickly put together mobile and flexible processing facilities, the use of which will undoubtedly contribute to shaping the future of our country’s launch system.
An important point made in the paper is the conclusion that in spite of our country’s lagging behind in super-small-lift launch vehicles, it has a significant scientific and engineering potential for developing this type of launch vehicles. Regardless of the value of other conclusions of the paper, the key point is that the current state of the ground space infrastructure facilities and the accumulated experience of specialists at Plesetsk make it possible to address the full spectrum of SS launch operations.
Key words: small spacecraft, launch vehicles, ground space infrastructure, system for operation of space facilities.
Technics for experimental determination of CubeSat mass-centering and inertial characteristics
Authors: BELOKONOV Igor V. , BARINOVA Elena V. , KLYUCHNIK Vitaly N. , IVLIEV Alexander V. , BOLTOV Elisey A.
Published: August 2021

Due to inability to set a high accuracy of initial data in theoretical calculations of mass-centering and inertial characteristics of nanosatellites, a problem arises concerning the experimental determination of their actual values. For a number of reasons, the devices designed for large spacecraft are not appropriate for small ones. This paper describes a device for measuring the center of mass coordinates and moments of inertia developed at Samara University specifically for CubeSat nanosatellites, as well as a technology for experimental determination of the design parameters of nanoclass spacecraft. The accuracy of determining the design parameters using the proposed device is confirmed by a series of experiments with standards.
Key words: nanosatellite, center of mass coordinates, moment of inertia, inertia tensor, measuring platform.
TECHNOLOGY OF TRADITIONAL AND PROMISING ESSENTIAL OIL CROPS CULTIVATION IN THE REPUBLIC OF CRIMEA
Authors:   Research Institute of Agriculture of Crimea, Pashtetsky V.S. , Skipor O.B. ,   Research Institute of Agriculture of Crimea, Kravchenko G.D. ,   Research Institute of Agriculture of Crimea, Zolotilova O.M. ,   Research Institute of Agriculture of Crimea, Zolotilov V.A. ,   Research Institute of Agriculture of Crimea, Myagkih E.F. ,   Research Institute of Agriculture of Crimea, Verdysh M.V. ,   Research Institute of Agriculture of Crimea, Popova A.A. ,   Research Institute of Agriculture of Crimea, Polyakova N.Yu. ,   Research Institute of Agriculture of Crimea, Kolesnikova A.V. ,   Research Institute of Agriculture of Crimea
Published: August 2021

В рекомендациях описаны биологические особенности, агротехнические приемы возделывания ряда традиционных и перспективных для выращивания в Крыму эфиромасличных культур. Приведены технологические карты возделывания эфироносов, содержащие перечень технологических операций, необходимых для их выращивания и получения стабильных урожаев эфиромасличного сырья, а также трудовые и материально-денежные затраты. Рекомендации предназначены для руководителей и специалистов эфиромасличного производства, научных сотрудников, аспирантов и студентов аграрных учебных заведений.
Entender y comprender el autismo en la familia. Relato de vida de Ángel Martínez
Authors: Martínez Ángel , Guaimara Estephanny
Published: August 2021

En el marco de la orientación existen muchas situaciones en las que no son formados los profesionales de esa área, como lo es el autismo, así que este estudio tuvo como propósito, entender y comprender el autismo en el seno de la familia desde el relato de vida de Ángel Martínez. La metodología usada fue cualitativa con enfoque biográfico específicamente relato de vida de Legrand (1993). En el análisis se produjeron ocho bloques de sentido, de los cuales se mostró de modo gestáltico dos aspectos centrales, el autismo se entiende y se comprende desde la medicina y desde la familia, como aquel seno en el cual el niño desarrolla sus talentos, aptitudes pero también como la familia misma crece, se potencia y acompaña al niño en el desarrollo de su personalidad y proyecto de vida.
Estrés postraumático e inteligencia emocional en bomberos
Authors: Escobar Eliza , González Betania
Published: August 2021

En el marco de la orientación existen muchas  situaciones  en  las que no son formados los profesionales de esa área, como lo es el autismo, así que este estudio tuvo como propósito, entender y comprender el autismo en el seno de la familia desde el relato de vida de Ángel Martínez. La metodología usada fue cualitativa con enfoque biográfico específicamente relato de vida de Legrand (1993).  En el análisis se produjeron ocho bloques de sentido, de los cuales se mostró de modo gestáltico dos aspectos centrales, el autismo se entiende y se comprende desde la medicina y desde la familia, como aquel seno en el cual el niño desarrolla sus talentos, aptitudes pero también como la familia misma crece, se potencia y acompaña  al  niño  en el desarrollo de su personalidad y proyecto de vida.
A Construção de um Mapa Climático Urbano para Petrópolis-RJ: cidade, clima urbano e planejamento
Authors:   , Fernandes Ludmilla Alves
Published: August 2021

Por meio da materialização de um pensar e agir urbano, o processo de produção do espaço urbano repercute nos objetos e processos naturais. Dessa maneira, percebe-se que a produção e o consumo desse espaço, por meio do retrabalho da natureza primitiva, resultam em transformações de ordem socioambiental. Ademais, os efeitos do clima urbano se radicam à proporção de um crescimento urbano caótico. Por isso, ganham importância as análises que se debruçam sobre os entremeios entre clima, cidade e planejamento urbano, sendo esse último o principal responsável pela regulação do clima, através de seus mecanismos de regulamentação urbana. É nesse contexto interseccional que surgem os Mapas Climáticos Urbanos (UC-Map), enquanto uma ferramenta de agregação entre as informações climáticas urbanas e as informações de cunho urbano e urbanístico. O presente trabalho teve como objetivo compreender a relação existente entre as variáveis socioambientais que condicionam a conformação climática urbana da cidade de Petrópolis, por meio da construção de um Mapa Climático Urbano. Petrópolis é um dos municípios que compõem a Região Serrana do estado do Rio de Janeiro e mostra-se um interessante campo de pesquisa, dado que seu espaço urbano apresenta áreas de características contrastantes, mesmo em um pequeno recorte espacial, que decorrem do seu processo de formação enquanto Cidade Imperial e posterior expansão. Enquanto o Centro Histórico guarda aspectos, ainda, do período do Império (como as ruas estreitas e seus calçamentos) e é caracterizado por significativa presença de áreas verdes e controle do uso do solo, os bairros mais afastados são caracterizados pela autoconstrução, altos índices de impermeabilidade do solo e pouca ou nenhuma cobertura vegetal. Metodologicamente, dividiu-se em duas grandes etapas: o levantamento de dados preliminares e a construção do mapa climático urbano, propriamente dita, com base na definição de climatopos. Analisando a espacialização dos climatopos que compuseram o mapa foi possível observar que as áreas de maior carga térmica e menor potencial dinâmico foram aquelas caracterizadas pelo uso misto e alto fluxo de pessoas e veículos. Por outro lado, as áreas de menor carga térmica e maior potencial dinâmico coincidem com áreas vegetadas /ou abertas. A partir dessas e outras análises, foram definidas estratégias e recomendações no que se refere ao planejamento urbano.
A Hora-Atividade na Rede Municipal de São Luís: realidades e perspectivas
Authors:   , Formiga Arsenia Pereira de Sousa Medeiros
Published: August 2021

A presente dissertação foi desenvolvida no âmbito do Mestrado Profissional em Gestão e Avaliação da Educação Pública (PPGP) do Centro de Políticas Públicas e Avaliação da Educação da Universidade Federal de Juiz de Fora (CAEd/UFJF). O caso de gestão buscou identificar quais são os principais entraves no cumprimento do tempo destinado às Atividades Extraclasse pelos professores da Rede Pública de Ensino de São Luís - MA a partir da implementação da Lei nº 11.738/2008, que institui o piso salarial profissional nacional para os profissionais do magistério público da educação. O objetivo geral da pesquisa foi analisar os entraves e dificuldades relativos à realização da carga horária de um terço destinada às Atividades Extraclasse dos docentes da Rede Pública Municipal de São Luís. Quanto aos objetivos específicos, buscou-se: descrever a implementação da Lei do Piso na Rede Pública Municipal de Ensino de São Luís a partir do levantamento de dados documentais e regulatórios correspondentes ao cumprimento do tempo destinado à Hora-Atividade; analisar a percepção das equipes gestoras e professores das escolas quanto às orientações que a Secretaria Municipal de Educação (SEMED) emitiu sobre a Hora-Atividade; e propor aos dirigentes da SEMED, Secretário(a) de Educação e Secretário(a) Adjunto(a) de Ensino a regulamentação do um terço (Hora-Atividade) na Rede Municipal, de forma mais participativa e mais democrática. Foi realizado um levantamento para análise de documentos internos à secretaria, bem como leis nacionais, estaduais e municipais e, ainda, a pesquisa bibliográfica, com a revisão de literatura em materiais que tratam da temática. As reflexões teóricas foram organizadas a partir de três eixos de estudo: políticas públicas no cenário educacional; trabalho docente: valorização e condições de trabalho; e gestão escolar. A fundamentação teve sustentação nos estudos de Mainardes (2006), Riani (2013), Segatto (2012), Condé (2012), Contreras (2002), Imbernón (2009), Tardif e Lessard (2014), Burgos e Canecal (2011), Lück (2006), Abrucio (2010) entre outros. Trata-se de uma pesquisa de cunho qualitativo que descreveu e reconsiderou a realidade observada, tendo como instrumentos de coleta de dados as entrevistas individuais semiestruturadas com ex-secretário de educação, Diretoras de Núcleos e representante docente. A análise dos resultados sustentou a construção do Plano de Ação Educacional (PAE) que aponta encaminhamentos para a regulamentação local da Lei nº 11.738/2008 a partir de três ações estruturantes: a elaboração de uma portaria, a reelaboração das orientações para o cumprimento do um terço nas escolas e um calendário prevendo todas as ações formativas e de planejamento a partir de cada jornada docente.
Funcionalidade de lactentes e crianças expostas ao vírus Zika durante a gestação
Authors:   , Oliveira Amanda Tupinambá da Fonseca
Published: August 2021

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A gestão administrativa nas universidades federais: análise das atribuições de professores-gestores na Universidade Federal de Juiz de Fora
Authors:   , Silva Andrêsa Lopes
Published: August 2021

A presente dissertação foi desenvolvida no âmbito do Mestrado Profissional em Gestão e Avaliação da Educação Pública (PPGP) do Centro de Políticas Públicas e Avaliação da Educação da Universidade Federal de Juiz de Fora (CAEd/UFJF). O caso de gestão estudado discutiu as dificuldades na atuação do docente enquanto professor-gestor nos cargos de Chefia de Departamento e Coordenação de Curso na UFJF. A presente dissertação foi elaborada tendo como objetivo identificar as principais dificuldades enfrentadas por estes gestores no exercício de suas funções, analisar as respostas mediante o contexto institucional e, de acordo com o resultado obtido, propor ações que possibilitem melhorias institucionais. Para melhor contextualizar o caso de gestão exposto, foram descritos aspectos inerentes à organização das universidades federais e à atuação dos docentes em cargos administrativos nestas instituições, bem como a estrutura e a atuação em cargos de Chefia de Departamento e Coordenação de Curso, em particular, na UFJF. Ademais, a discussão teórica contou com conceitos de gestão pública, autonomia universitária, Gestão da Informação e Gestão do Conhecimento, com a finalidade de dialogar com a problemática apresentada e proporcionar melhor compreensão da conjuntura na qual o caso de gestão se apresenta. O trabalho foi desenvolvido com base na pesquisa qualitativa, mediante a realização de pesquisa bibliográfica, documental e de campo. Esta última contou com a coleta de dados por meio de entrevistas – voltadas a dois representantes superiores ligados à área de recursos humanos e tecnológicos da Instituição –, e da aplicação de questionários – destinados aos gestores ocupantes de cargos de Chefia de Departamento e Coordenação de Curso. Por fim, mediante a identificação dos principais entraves organizacionais, foram propostas ações – relacionadas às teorias de Gestão da Informação e Gestão do Conhecimento – as quais têm por intuito desenvolver mecanismos que auxiliem no desempenho das funções exercidas pelos professoresgestores dos cargos supracitados bem como garantir eficiência e eficácia na prestação do serviço público ofertado pela Universidade.
Valoración histórica de los recursos naturales. El caso de Villa Pehuenia-Moquehue, provincia de Neuquén, Argentina
Authors: Di Nicolo Carolina Andrea
Published: August 2021

Villa Pehuenia-Moquehue es una localidad del centro oeste de la provincia de Neuquén, Argentina. Si bien en la actualidad cuenta con un claro perfil turístico, sus orígenes están relacionados con el desarrollo de otras actividades productivas como son la maderera y la ganadería extensiva. Ello supuso una diferente valoración social sobre los recursos naturales presentes, así como una determinada organización del territorio.
El objetivo central es mostrar esas diferencias a lo largo de los años hasta llegar a la actualidad donde el turismo es la actividad por excelencia en la villa.
Para ello se utilizaron fuentes primarias y secundarias. Para las primeras se realizó un importante trabajo de campo en el marco de la elaboración de la tesis doctoral de la autora en el cual se efectuaron entrevistas a personas clave del lugar y se captó valiosa información y fotografías como observador no participante. También se acudió a documentos legales, censos nacionales de población y vivienda, y se utilizaron fuentes bibliográficas que han realizado importantes estudios en el área.
Como resultado, el trabajo permite identificar tres momentos en la historia reciente de la villa con el desarrollo de tres actividades económicas diferentes y con especificidades en cuanto a la relación sociedad-naturaleza y a los rasgos que cada una le ha impreso a dicho territorio.
The relevance of leisure marketing activities among university level students
Authors: Afridi Fakhr E Alam , Zeeshan Muhammad
Published: August 2021

The leisure sector represents the fastest and among one of the largest growing economic sectors of consumer spending. However, our understanding and knowledge of consumer psychology of recreation and leisure are yet limited to the social and economic significance of the under-research phenomenon. Therefore this study investigated the relevance of recreational marketing activities in leisure consumers in terms of their preferences. Through an online survey 300 responses were collected from the respondents till closing date. Confirmatory Factor Analysis were conducted with help of AMOS 24 software. Significant differences were found in terms of importance, and place, between male and female students. Moreover, higher mean observed for male students than females in terms of these sub-dimensions social, access, and place. This study offer many practical and managerial applications to marketers and policy makers by identifying the important dimension of leisure activities.
Kiziroğlu Mu, Mısıroğlu Mu? Hasım Mı, Hısım Mı? Köroğlu’nun Anadolu ve İran Türkleri Anlatmalarında Bir Kahramanın İsim ve Rol Karmaşası
Authors: ÖZDAMAR Fazıl
Published: August 2021

Türk Dünyası adı verilen büyük coğrafyada başta Oğuz Türkleri olmak üzere Kıpçak ve Karluk gruplarında ve bu Türk gruplarıyla siyasi ve kültürel ilişkide bulunmuş komşu milletlerin anlatı geleneklerinde görülen ve bu denli geniş bir coğrafyaya yayılan tek destan Köroğlu’dur. Türk lehçelerinde kör kişinin oğlu anlamına gelen Köroğlu ya da mezarın oğlu anlamındaki Goroğlu kelimeleriyle adlandırılan bir kahramanın etrafında teşekkül eden Köroğlu Destanı’nda, etrafında topladığı Delileriyle/Keleşleriyle birlikte Çamlıbel’de bir düzen kuran Köroğlu’nun, hem kendisinin hem de Delilerinin Çamlıbel dışındaki dünyaya seferleri anlatılmaktadır.Bu inceleme Anadolu ve İran Türkleri anlatmaları temelinde söz konusu destanın bir kahramanı olan Mustafa Bey’le sınırlandırılmıştır. Destanın Anadolu varyantlarında bazen Köroğlu’nun “hısmı”; bazense “hasmı” olarak geçen ve sadece Kiziroğlu namıyla anılan Mustafa Bey, İran Türkleri anlatmalarında Kiziroğlu namı dışında Kahire Paşası Mısıroğlu ya da Teke Türkmenli namıyla anılmakta ve Anadolu’da olduğu gibi bu bölgedeki anlatmalarda da Mustafa Bey, Köroğlu’nun bazen “hısmı” bazen de “hasmı” durumundadır.Bu bağlamda incelemede Köroğlu Destanı’nın çeşitli kollarında Kiziroğlu ve Mısıroğlu namlarıyla anılan Mustafa Bey’in, hem adındaki hem rolündeki hem de hüküm sürdüğü bölgedeki karmaşa, söz konusu destanın Anadolu ve İran metinleri örnekleminde ele alınacaktır.
Arcturus’a Yolculuk ve Hayalet Kentin Kadınları Eserlerinde Apollon-Dionysos Dikotomisinin İzleri
Authors: DAĞ Ülfet
Published: August 2021

Nietzsche’ye göre Eski Yunan tragedyasını oluşturan iki güç Apollon ve Dionysos’tur. O, sanatın kökenini Apollon ve Dionysos çatışması bağlamında açıklar. Camille Paglia ise Apollon ve Dionysos’u doğa ve kültürle ilişkilendirir. Paglia’ya göre evren; kültür-doğa, akıl-duygu ve kadın-erkek gibi ikiliklerden oluşur ve tüm ikilikler, birbirlerini tamamladıklarında bir bütünlük meydana gelir. Bu yazı, söz konusu Apollon-Dionysos dikotomisi/ikileşimi üzerinden David Lindsay’in Arcturus’a Yolculuk ve Nurcihan Doğaç’ın Hayalet Kentin Kadınları eserlerindeki doğa ve kültür bütünlüğünü incelemeyi amaçlamaktadır. Paglia’nın düşüncelerinden hareketle adı geçen eserler karşılaştırmalı yöntemle analiz edilmiştir. Eserleri bu çalışmaya konu eden ortak noktalar fantastik yoğunlukları, yolculuk maceraları ve insan dünyasını yeniden inşa etme çabalarıdır. Eserlerde, bu inşa sürecine mekân olarak yerküre değil de atmosferdeki Arcturus Yıldızı ve Su Yılanı Takımyıldızı seçilmiştir. Çalışmanın ana argümanını akıl, bilim ve teknoloji ne kadar ilerlerse ilerlesin insanlığın doğanın verdiği yaşam enerjisini, canlılığı ve ilksel güdüleri hiçbir zaman ardında bırakamayacağı fikri oluşturmaktadır. Bu da teorik bağlamda Apollon-Dionysos dikotomisine karşılık gelir. Eserlerde beşerî dünyanın yeniden inşası bu dikotomi temelinde gerçekleşmiştir. Apollon kültürü yaratarak insanı doğallıktan uzaklaştırırken Dionysos onun kültürlenmemiş ve ilkel olan doğasını ifade eder. İkisinin etkileşimi bir kutsal yaşam ilkesidir ve bu da bireylerde yapıcı ve yıkıcı yönlerin bilinmesiyle simgeleşir. Karakterler, son tahlilde zıtlık olarak görülen ikiliklerin farkındalığına erişerek bunların birbirini tamamlayan güçler olduğunun bilincine varmışlardır. Bu bağlamda Apollon-Dionysos dikotomisinin eserlerde yıkıcı ve yaratıcı güç olarak harmonik bir biçimde işlev gördüğü gözlemlenmiştir.
CULTIVARES DE MILHO VERDE PARA CONSUMO IN NATURA E SUAS CARACTERÍSTICAS BIOMÉTRICAS
Authors: Almeida Júnior Joaquim Júlio , Smiljanic Katya Bonfim Ataides , de Lima Netto Aristóteles Mesquita , Lima Lásara Isabella Oliveira , Pinto Leonardo Soares , Silva Reinaldo Ferreira , Veronez Ricardo Vilela de Sousa , Pires Delma Erks , Alves Robson Pereira , Dutra Janderson Martins , Santos Liny Junio Souza
Published: August 2021

O objetivo deste trabalho foi avaliar as características peculiar ao consumo do milho in natura e índice de massa nas variedades milho hibrido BM3061, AG1051 e Sempre Verde. O projeto foi conduzido no ano agrícola de 2015/2106 na área experimental do NÚCLEO DE PESQUISA EM FITOTECNIA - FELEOS/MINEIROS/GO, apresentando como coordenadas geográficas aproximadas, 17° 58’ S de latitude e 45°22’ W de longitude e com 845 m de altitude. O delineamento experimental foi em blocos casualizados em esquema fatorial 5x3 e quatro repetições, sendo cinco dose de adubação mineral (T1 – Controle (300kg) A.M. (Adubo Mineral) ha-1; T2 – 600kg A.M. ha-1; T3 – 900 kg A.M. ha-1; T4 – 1.200 kg A.M. ha-1; T5 – 1.500 A.M. kg ha-1) e três cultivar de milho (BN3061, AG1051 e Sempre Verde). As cultivar de milho foram avaliados biometricamente através do NGF: Número de grão por fileira; NF: Número de fileiras; AG: Altura do grão (mm); PG: Peso do grão (g); CE: Comprimento da espiga (cm); VM: Volume de massa (ml). As características avaliadas entre as cultivares não ocorreu diferença estatística significativa entre elas, entre as cultivares testadas a que obteve os melhores resultados foram AG 1051 e Sempre verde.
PLANTIO DE MILHO EM DIFERENTE ÉPOCAS VISANDO AS CARACTERÍSTICA BIOMETRICA FOLIAR DA CULTURA DO MILHO NO SUDOESTE GOIANO
Authors: Almeida Júnior Joaquim Júlio , Smiljanic Katya Bonfim Ataides , de Lima Netto Aristóteles Mesquita , Lima Lásara Isabella Oliveira , Pinto Leonardo Soares , Silva Reinaldo Ferreira , Veronez Ricardo Vilela de Sousa , Pires Delma Erks , Alves Robson Pereira , Dutra Janderson Martins , Santos Liny Junio Souza
Published: August 2021

O presente trabalho tem como objetivo testar a influência de diferentes épocas de plantio sobre a produtividade do milho híbridos e avaliar a quantidade perdida quando não são respeitadas as épocas ideais de plantio e fazer uma análise biométrica da planta e espiga para constatar se pode ocorrer mudanças no dossel. O trabalho foi desenvolvido na área experimental do NÚCLEO DE PESQUISA EM FITOTECNIA - FELEOS/MINEIROS (GO.), no ano agrícola 2016/17. Os tratamentos constituíram de plantio em cinco épocas diferente: T1 – 08/01/2016; T2 – 15/01/2016; T3 – 22/01/2016; T4 – 29/01/2016; T5 – 05/02/2016). Há forte influência das épocas de plantio sobre o desempenho da área foliar sobre a cultivar de milho DKB 360 PRO, o atraso nas épocas de plantio influenciou positivamente o desempenho da área foliar, sendo que o tratamento T5 obteve o melhor índice estatisticamente em comparação a todas as outras épocas avaliadas.
A High-Efficient Finite Difference Method for Flexible Manipulator with Boundary Feedback Control
Authors: Liu Fushou , Jin Dongping
Published: August 2021

The paper presents a high-efficient finite difference method for solving the PDE model of the single-link flexible manipulator system with boundary feedback control. Firstly, an abstract state-space model of the manipulator is derived from the original PDE model and the associated boundary conditions of the manipulator by using the velocity and bending curvature of the flexible link as the state variables. Then, the second-order implicit Crank-Nicolson scheme is adopted to discretize the state-space equation, and the second-order one-sided approximation is used to discretize the boundary conditions with excitations and feedback control. At last, the state-space equation combined with the boundary conditions of the flexible manipulator is transformed to a system of linear algebraic equations, from which the response of the flexible manipulator can be easily solved. Numerical simulations are carried out to simulate the manipulator under various excitations and boundary feedback control. The results are compared with ANSYS to demonstrate the accuracy and high efficiency of the presented method.
California harbor dredging: History and trends
Authors: Patsch Kiki , Griggs Gary
Published: August 2021

California is a major shipping point for exports and imports across the Pacific Basin, has large commercial and recreational fisheries, and an abundance of marine recreational boaters. Each of these industries or activities requires either a port or harbor. California has 26 individual coastal ports and harbors, ranging from the huge sprawling container ports of Los Angeles and Long Beach to small fishing ports like Noyo Harbor and Bodega Bay. Almost all of California’s ports and harbors were constructed without any knowledge or consideration of littoral drift directions and rates and potential future dredging issues. Rather, they were built where a need existed, where there was a history of boat anchorage, or where there was a natural feature (e.g. bay, estuary, or lagoon) that could be the basis of an improved port or harbor. California’s littoral drift rates and directions are now well known and understood, however, and have led to the need to perform annual dredging at many of these harbors as a result of their locations (e.g. Santa Cruz, Oceanside, Santa Barbara, Ventura, and Channel Islands harbors) while other harbors require little or no annual dredging (e.g. Half Moon Bay, Moss Landing, Monterey, Redondo-King and Alamitos Bay). California’s coastal harbors can be divided into three general groups based on their long-term annual dredging volumes, which range from three harbors that have never been dredged to the Channel Islands Harbor where nearly a million cubic yards is removed on average annually. There are coastal harbors where dredging rates have remained nearly constant over time, those where rates have gradually increased, and others where rates have decreased in recent years. While the causal factors for these changes are evident in a few cases, for most there are likely a combination of reasons including changes in sand supply by updrift rivers and streams related to dam construction as well as rainfall intensity and duration; lag times between when pulses of sand added to the shoreline from large discharge events actually reach downdrift harbors; variations in wave climate over time; shoreline topography and nearshore bathymetry that determine how much sand can be trapped upcoast of littoral barriers, such as jetties and breakwaters, before it enters a harbor; and timing of dredging. While there is virtually nothing that can be done to any of these harbors to significantly reduce annual dredging rates and costs, short of modifying either breakwater or jetty length and/or configuration to increase the volume of sand trapped upcoast, thereby altering dredging timing, they are clearly major economic engines, but come with associated costs.
Rip current rescues on unguarded beaches
Authors: Litzinger Aubrey , Leatherman Stephen
Published: August 2021

Rip currents are the greatest danger at surf beaches. Professional lifeguards rescue tens of thousands of people every year at U.S. beaches, but only a small percentage of the nation’s beaches are guarded. Oftentimes it is a young person who is caught in a rip current, and a bystander will attempt a rescue without a flotation device. The U.S. Lifesaving Association strongly suggests that this kind of rescue should not be undertaken because too often the rescuer will drown. Some coastal towns such as Cocoa Beach in Florida are now posting ring buoys on their unguarded beaches with the warning to throw, but not to go into the water. Ring buoys of two different weights were tested for efficiency when thrown in terms of distance and accuracy. The participants threw the ring buoys two different ways: one way of their choosing (un-instructed) and second by Red Cross recommendation (instructed). The buoyancy was also tested for each buoy. While these flotation devices have some merit, they clearly have limitations.
MADURACIÓN Y GERMINACIÓN DE EMBRIONES SOMÁTICOS DE Coffea arabica CV. COLOMBIA
Authors: Riviello-Cogco Enrique , Robledo-Paz Alejandrina , Gutiérrez-Espinosa María A. , Suárez-Espinosa Javier , Mascorro-Gallardo José Oscar
Published: August 2021

La variedad de café Colombia (Coffea arabica L.) tiene alta resistencia a la roya y buenas características de producción y calidad de taza. Diversos protocolos para la propagación de café mediante embriogénesis somática han sido desarrollados; sin embargo, la tasa de maduración, germinación y conversión es baja. El objetivo de la presente investigación fue determinar el efecto de reguladores del crecimiento y agentes osmóticos en la maduración y germinación de embriones somáticos de café y evaluar, en condiciones ex vitro, las características fisiológicas de las plantas regeneradas. Para su maduración, embriones globulares y torpedo temprano se cultivaron en un medio Yasuda et al. (1985) con distintas concentraciones de ácido abscísico (ABA) (2-4 mg L-1), ácido salicílico (ASA) (1.38 g L-1), ácido giberélico (AG3) (0.7-1.0 mg L-1), ácido indolacético (AIA) (0.3-0.5 mg L-1), polietilenglicol 8000 (PEG 8000) (50-75 g L-1) o sacarosa (50-80 g L-1). Para su germinación, los embriones maduros fueron transferidos a un medio con 0.25 mg L-1 de AIA y 0.25 mg L-1 de 6-bencilaminopurina (BAP). Las plantas se aclimataron y crecieron en perlita:turba:tezontle (1:1:1) o turba:tezontle (2:1) en condiciones de invernadero. El valor máximo de maduración y germinación de los embriones globulares se observó al adicionar 50 g L-1 de sacarosa al medio (81.7 y 53.9 %, respectivamente). Para los embriones torpedo temprano el porcentaje de maduración más alto se registró con 80 g L-1 de sacarosa (19.2 %) o una combinación de 1.0 mg L-1 de AG3 y 0.5 mg L-1 de AIA (45.0 %); sin embargo, los porcentajes de germinación no fueron significativamente distintos del testigo. El potencial osmótico de los embriones no estuvo directamente relacionado con su grado de madurez. La totalidad de las plantas cultivadas en las mezclas de sustratos sobrevivieron y mostraron ser morfológica y fisiológicamente normales bajo condiciones ex vitro.
RESPUESTA DE HÍBRIDOS SUBTROPICALES DE MAÍZ A LA DENSIDAD DE POBLACIÓN
Authors: Ramírez-Díaz José Luis , Alemán-de la Torre Ivone , Bautista-Ramírez Edgardo , Vidal-Martínez Víctor A. , Salinas-Moreno Yolanda , Ledesma-Miramontes Alejandro
Published: August 2021

En el cultivo de maíz (Zea mays L) la densidad de población es un componente importante de la producción de grano. Esta investigación tuvo como objetivo estudiar la respuesta en rendimiento de grano y características agronómicas de cinco híbridos experimentales de maíz al variar la densidad de población. Los híbridos y dos testigos se sembraron a 65, 75 y 90 mil plantas ha-1 en un diseño experimental de bloques completos al azar con tres repeticiones con arreglo de tratamientos en parcelas divididas, donde la parcela grande incluyó las densidades de población y la chica los híbridos. La unidad experimental fue de cuatro surcos y la parcela útil los dos surcos centrales. La evaluación se hizo en Peña del Panal, Michoacán, México en punta de riego, y en Tepatitlán y San Miguel Cuyutlán, Jalisco, México en temporal. Se registraron datos de planta y de mazorca y se realizaron análisis estadísticos combinados a través de localidades. El rendimiento de los híbridos fue diferente al aumentar la densidad de población, los híbridos HE-48, HE-46, HE-15A y H-377 elevaron el rendimiento al incrementar la densidad de población; el comportamiento del híbrido H-377 fue muy dependiente de la densidad de población, con 65 mil plantas ha-1 tuvo rendimiento de grano bajo y con 90 mil alcanzó su máximo rendimiento. Los híbridos HE-48 y HE-15A tuvieron rendimiento alto tanto en baja como en alta densidad. El rendimiento de grano en función de las densidades de población es un factor importante a considerar para la rentabilidad del cultivo, especialmente en siembras de maíz de temporal, pues en esas condiciones el rendimiento de grano disminuyó al aumentar la densidad de población.
ADAPTACIÓN Y SELECCIÓN DE MAÍCES NATIVOS EN LA REGIÓN DEL BAJÍO DE MÉXICO POR SU CARACTERIZACIÓN MORFOLÓGICA
Authors: Rangel-Lucio J. Antonio , Santacruz-Varela Amalio , Córdova-Téllez Leobigildo , García-Rodríguez J. Guadalupe , Cervantes-Ortíz Francisco , Vaquera-Huerta Humberto , Cuenca-Salgado Jesús Alberto
Published: August 2021

La caracterización morfológica es un proceso de gran importancia para incorporar germoplasma de valor en los programas de introducción de maíz (Zea mays L.) con fines de mejoramiento genético. El objetivo del presente estudio fue caracterizar un grupo de 90 accesiones de 12 razas de maíz nativo de México: Bofo, Celaya, Coscomatepec, Elotes Occidentales, Harinoso de Ocho, Dulce de Jalisco, Mushito, Pepitilla, Serrano de Jalisco, Tablilla de Ocho, Tabloncillo y Zamorano Amarillo para identificar aquellas con mejores características productivas y de adaptación en el Bajío de México. Se utilizó un diseño de bloques completos al azar y se evaluaron caracteres agronómicos de la planta, espiga, mazorca y grano. Hubo diferencias significativas entre las accesiones de maíz nativo. El rendimiento de grano más alto se registró en las accesiones Gto-101 (8.3 t ha-1), Dgo-18 y Jal-554 de la raza Celaya y Jal-633 (6.0 t ha-1) de Elotes Occidentales. La mayor altura de planta y de mazorca y dimensiones de la espiga (longitud de pedúnculo, del tramo del eje con ramas y del eje principal) se prentaron en las accesiones Ver-406 (raza Coscomatepec), Nay-214 (Harinoso de Ocho), Dgo-218 (Celaya), y en Nay-191, Nay-196 y Nay-217 (Bofo). El análisis de conglomerados integró a las razas Bofo, Celaya y Elotes Occidentales en los Grupos I, II y III, mientras que el Grupo IV fue integrado por Mushito, Pepitilla, Bofo y Tabloncillo, y el Grupo V por mezclas de las razas evaluadas, excepto Celaya. Fue posible identificar accesiones de las razas de maíz Bofo, Celaya y Elotes Occidenatles prometedoras para el Bajío de México.