60 research outputs found

    Investigate the situation using information technology in elementary physical education teachers

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    Now day’s education is very important & more changes cause more attention to the training. These days training is the one of human body’s unavoidable needs. Training & increasing skills is a good way to encounter with the problems of today’s complex & changeable world. Education & especially training that train the new generation is the former need of a civilized society. The purpose of this research was Investigate the situation using information technology in elementary PE teachers of Babol city. The research type was descriptive, applicative and natural dispositional that was done by the field way. Statistical society included all the male & female employed elementary school’s PE teachers of Babol city. Statistical sample included 85 teachers that answered the questionnaire. The measuring tools were the Kalateahani (2009) (α=0.79). The used statistical way included the t-test & Pierson correlation coefficient. The research’s founding’s showed the teacher’s attitude about the IT was positive & there is a meaning relation among the skill, quantity of useag of them. About the use of IT & also there is not a meaningful difference among teacher’s attitudes about the use of IT in research & education task & quantity of need to education of them in difference sexuality & there is a meaningful difference among the skill & quantity of use of IT in research & education tasks in different education degrees

    Investigando o estilo de liderança dos gestores da unidade de educação física da Secretaria de Educação do município de Babol e sua relação com a eficácia organizacional

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    The aim of study is Investigating the leadership style of managers in the physical education unit of the Education Department of Babol city and its relationship with organizational effectiveness. Statistical society includes all PE teachers in Physical Education Department of Education office about 195 persons. Sample volume has been determined by Cochran's formula about 131 persons. Study method is of descriptive- correlation one. Research type is by applicable and method of gathering data is field one. We have used of questionnaire instrument to gather information. Above questionnaire narration has been approved by some professors in management and sport management field. Questionnaire stability after gathering 20 questionnaires of above society for leading style is (α=0.82) and organizational impression (α=0.85). Data analysis has been done in the two levels of descriptive and inferential and by the aid of SPSS22 software. Also, we have used of inferential test Pearson test, regression. The result of study shows, there is positive and meaningful relation among leading style and organizational impression (pEl objetivo del estudio es Investigar el estilo de liderazgo de los gerentes de la unidad de educación física del Departamento de Educación de la ciudad de Babol y su relación con la efectividad organizacional. La sociedad estadística incluye a todos los profesores de educación física en la oficina del Departamento de Educación de Educación Física, aproximadamente 195 personas. El volumen de la muestra se ha determinado mediante la fórmula de Cochran para unas 131 personas. El método de estudio es de correlación descriptiva. El tipo de investigación es aplicable y el método de recopilación de datos es el campo uno. Hemos utilizado un instrumento de cuestionario para recopilar información. La narración del cuestionario anterior ha sido aprobada por algunos profesores en el campo de la gestión y la gestión deportiva. La estabilidad del cuestionario después de recopilar 20 cuestionarios de la sociedad anterior para el estilo de liderazgo es (α = 0,82) y la impresión organizacional (α = 0,85). El análisis de datos se ha realizado en los dos niveles descriptivo e inferencial y con la ayuda del software SPSS22. Además, hemos utilizado la prueba inferencial de Pearson, regresión. El resultado del estudio muestra que existe una relación positiva y significativa entre el estilo de liderazgo y la impresión organizacional (pO objetivo do estudo é Investigar o estilo de liderança dos gestores da unidade de educação física da Secretaria de Educação do município de Babol e sua relação com a eficácia organizacional. A sociedade estatística inclui todos os professores de EF no escritório do Departamento de Educação Física de cerca de 195 pessoas. O volume da amostra foi determinado pela fórmula de Cochran para cerca de 131 pessoas. O método de estudo é de correlação descritiva. O tipo de pesquisa é aplicável e o método de coleta de dados é o campo um. Temos utilizado instrumento de questionário para coletar informações. A narração do questionário acima foi aprovada por alguns professores na área de gestão e gestão do esporte. A estabilidade do questionário após a coleta de 20 questionários da sociedade acima para estilo de liderança é (α = 0,82) e impressão organizacional (α = 0,85). A análise dos dados foi feita nos dois níveis descritivo e inferencial e com auxílio do software SPSS22. Além disso, utilizamos o teste inferencial, teste de Pearson, regressão. O resultado do estudo mostra que existe relação positiva e significativa entre estilo de liderança e impressão organizacional (

    Bitter Taste Receptors and Endocrine Disruptors: Cellular and Molecular Insights from an In Vitro Model of Human Granulosa Cells

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    Endocrine disrupting chemicals (EDCs) are compounds that interfere with the synthesis, transport and binding action of hormones responsible for reproduction and homeostasis. Some EDCs compounds are activators of Taste bitter Receptors, a subclass of taste receptors expressed in many extraoral locations, including sperm and follicular somatic cells. This makes TAS2Rs attractive molecules to study and investigate to shed light on the effect of EDCs on female reproduction and fertility. This study aims to assess the effect of selected EDCs [namely Biochanin A (BCA), caffeine, Daidzein, Genistein and Isoflavone] on hGL5, an immortalized cell line exhibiting characteristics coherent with primary follicular granulosa cells. After demonstrating that this model expresses all the TAS2Rs (TAS2R3, TAS2R4, TAS2R14, TAS2R19, TAS2R43) specifically expressed by the primary human granulosa cells, we demonstrated that BCA and caffeine significantly affect mitochondrial footprint and intracellular lipid content, indicating their contribution in steroidogenesis. Our results showed that bitter taste receptors may be involved in steroidogenesis, thus suggesting an appealing mechanism by which these compounds affect the female reproductive system

    Bitter Taste Receptors and Endocrine Disruptors: Cellular and Molecular Insights from an In Vitro Model of Human Granulosa Cells

    Get PDF
    Endocrine disrupting chemicals (EDCs) are compounds that interfere with the synthesis, transport and binding action of hormones responsible for reproduction and homeostasis. Some EDCs compounds are activators of Taste bitter Receptors, a subclass of taste receptors expressed in many extraoral locations, including sperm and follicular somatic cells. This makes TAS2Rs attractive molecules to study and investigate to shed light on the effect of EDCs on female reproduction and fertility. This study aims to assess the effect of selected EDCs [namely Biochanin A (BCA), caffeine, Daidzein, Genistein and Isoflavone] on hGL5, an immortalized cell line exhibiting characteristics coherent with primary follicular granulosa cells. After demonstrating that this model expresses all the TAS2Rs (TAS2R3, TAS2R4, TAS2R14, TAS2R19, TAS2R43) specifically expressed by the primary human granulosa cells, we demonstrated that BCA and caffeine significantly affect mitochondrial footprint and intracellular lipid content, indicating their contribution in steroidogenesis. Our results showed that bitter taste receptors may be involved in steroidogenesis, thus suggesting an appealing mechanism by which these compounds affect the female reproductive system

    Investigate the situation using information technology in elementary physical education teachers

    No full text
    Now day’s education is very important &amp; more changes cause more attention to the training. These days training is the one of human body’s unavoidable needs. Training &amp; increasing skills is a good way to encounter with the problems of today’s complex &amp; changeable world. Education &amp; especially training that train the new generation is the former need of a civilized society. The purpose of this research was Investigate the situation using information technology in elementary PE teachers of Babol city. The research type was descriptive, applicative and natural dispositional that was done by the field way. Statistical society included all the male &amp; female employed elementary school’s PE teachers of Babol city. Statistical sample included 85 teachers that answered the questionnaire. The measuring tools were the Kalateahani (2009) (α=0.79). The used statistical way included the t-test &amp; Pierson correlation coefficient. The research’s founding’s showed the teacher’s attitude about the IT was positive &amp; there is a meaning relation among the skill, quantity of useag of them. About the use of IT &amp; also there is not a meaningful difference among teacher’s attitudes about the use of IT in research &amp; education task &amp; quantity of need to education of them in difference sexuality &amp; there is a meaningful difference among the skill &amp; quantity of use of IT in research &amp; education tasks in different education degrees.</jats:p

    Investigating the leadership style of managers in the physical education unit of the Education Department of Babol city and its relationship with organizational effectiveness

    No full text
    The aim of study is Investigating the leadership style of managers in the physical education unit of the Education Department of Babol city and its relationship with organizational effectiveness. Statistical society includes all PE teachers in Physical Education Department of Education office about 195 persons. Sample volume has been determined by Cochran's formula about 131 persons. Study method is of descriptive- correlation one. Research type is by applicable and method of gathering data is field one. We have used of questionnaire instrument to gather information. Above questionnaire narration has been approved by some professors in management and sport management field. Questionnaire stability after gathering 20 questionnaires of above society for leading style is (α=0.82) and organizational impression (α=0.85). Data analysis has been done in the two levels of descriptive and inferential and by the aid of SPSS22 software. Also, we have used of inferential test Pearson test, regression. The result of study shows, there is positive and meaningful relation among leading style and organizational impression (p</jats:p

    Effet de la formation de paires d'ions sur les équilibres de phase de systèmes électrolytiques, et leur description par une équation d'état

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    This thesis focuses on the effect of ion pair formation on the phase equilibria of electrolytic systems and their description using an equation of state known as the ePPC-SAFT model. The work is motivated by the need to enhance the understanding and predictive capability of thermodynamic models for electrolytes, especially in mixed solvent systems, which are of great importance in various industrial applications.Electrolyte solutions, composed of ions dissolved in a solvent, present significant challenges due to their strong non-ideal behavior. This non-ideality arises from both short-range interactions, such as van der Waals forces and hydrogen bonding, and long-range electrostatic interactions between ions. When a co-solvent like alcohol is introduced, the dielectric constant of the medium decreases, leading to the formation of ion pairs and increasing the complexity of the system. Ion pairs can significantly alter the thermodynamic properties of the solution, affecting phase equilibria such as vapor-liquid, liquid-liquid, and solid-liquid equilibria.The research presented in this thesis introduces new models within the ePPC-SAFT framework to better account for ion pairing and its impact on the thermodynamic behavior of mixed solvent electrolyte systems. The ePPC-SAFT model, a variant of the Statistical Associating Fluid Theory (SAFT), combines various contributions that account for different molecular and ionic interactions: hard-sphere repulsive, dispersion, polar, association (ion-solvent and ion-ion), and electrostatic interactions. However, the original ePPC-SAFT model showed limitations in accurately describing systems where significant ion pairing occurs, particularly in mixed solvent environments.To address these limitations, the thesis proposes modifications to the ePPC-SAFT model by incorporating more accurate ion pairing descriptions using versions of the Mean Spherical Approximation (MSA) theory: Full-MSA (FMSA), and Binding MSA (BiMSA). The Bjerrum and Wertheim approaches were also used to account for electrostatic and chemical ion association. These new models were systematically compared to each other and validated against experimental data to determine their effectiveness in capturing the complex behavior of electrolytes in mixed solvents.The thesis demonstrates that the improved models, particularly those incorporating BiMSA and the Bjerrum theory, provide a better description of ion pairing and its effects on phase equilibria. These models are capable of capturing the effects of varying solvent composition, ionic strength, and temperature, providing a more reliable tool for predicting the behavior of electrolyte solutions in practical applications. Key findings include the significant impact of ion pairing on properties like vapor pressure, activity, and density, which are critical for optimizing processes such as metal extraction in hydrometallurgical operations.The proposed models and methodologies have broader implications for industries that rely on accurate thermodynamic predictions of electrolyte systems, including pharmaceuticals, environmental engineering, and energy storage. The findings offer a pathway to developing more efficient and sustainable processes through enhanced understanding and modeling of electrolyte thermodynamics.In conclusion, this thesis provides a comprehensive framework for understanding and modeling ion pair formation in mixed solvent electrolyte systems. By advancing the ePPC-SAFT model with novel approaches to ion pairing, this research contributes to both the theoretical and practical aspects of electrolyte thermodynamics, opening up new possibilities for industrial and academic applications.Cette thèse se concentre sur l'effet de la formation de paires d'ions sur les équilibres de phase des systèmes électrolytiques et leur description à l'aide d'une équation d'état, en particulier dans le cadre du modèle ePPC-SAFT. Ce travail est motivé par la nécessité d'améliorer la compréhension et la capacité prédictive des modèles thermodynamiques pour les électrolytes, en particulier dans les systèmes à solvants mixtes, qui revêtent une grande importance dans diverses applications industrielles, y compris la récupération des métaux par hydrométallurgie. Les solutions électrolytiques, composées d'ions dissous dans un solvant, posent des défis importants en raison de leur comportement fortement non-idéal. Cette non-idéalité provient à la fois des interactions à courte portée, telles que les forces de van der Waals et les liaisons hydrogène, et des interactions électrostatiques à longue portée entre les ions. Lorsqu'un co-solvant tel que l'alcool est introduit, la constante diélectrique du milieu diminue, ce qui entraîne la formation de paires d'ions et augmente la complexité du système. Les paires d'ions peuvent modifier de manière significative les propriétés thermodynamiques de la solution, affectant les équilibres de phase tels que les équilibres vapeur-liquide, liquide-liquide et solide-liquide. La recherche présentée dans cette thèse introduit de nouveaux modèles dans le cadre du ePPC-SAFT pour mieux prendre en compte la formation de paires d'ions et son impact sur le comportement thermodynamique des systèmes électrolytiques à solvants mixtes. Le modèle ePPC-SAFT, une variante de la théorie ‘‘Statistical Associating Fluid theory'' (SAFT), combine diverses contributions qui tiennent compte des différentes interactions moléculaires et ioniques: répulsion de sphères dures, dispersion, polarité, association (ion-solvant et ion-ion) et interactions électrostatiques. Cependant, le modèle original ePPC-SAFT a montré des limitations pour décrire avec précision les systèmes où se produit une formation importante de paires d'ions, en particulier dans les environnements de solvants mixtes. Pour surmonter ces limitations, la thèse propose des modifications au modèle ePPC-SAFT en incorporant des descriptions plus précises de la formation de paires d'ions en utilisant des versions de la théorie de ‘‘Mean Spherical Approximation'' (MSA) : la MSA Simplifiée (SMSA), la MSA Complète (FMSA) et la MSA de Liaison (BiMSA). Les approches de Bjerrum et de Wertheim ont également été introduites pour tenir compte de l'association ionique électrostatique et chimique. Ces nouveaux modèles ont été systématiquement comparés entre eux et validés par des données expérimentales afin de déterminer leur efficacité à capturer le comportement complexe des électrolytes dans les solvants mixtes. La thèse démontre que les modèles améliorés, en particulier ceux intégrant BiMSA et la théorie de Bjerrum, offrent une meilleure description de la formation de paires d'ions et de ses effets sur les équilibres de phase. Ces modèles sont capables de capturer les effets de la composition variable des solvants, de la force ionique et de la température, fournissant un outil plus fiable pour prédire le comportement des solutions électrolytiques dans des applications pratiques. Les principales conclusions incluent l'impact significatif de la formation de paires d'ions sur des propriétés telles que la pression de vapeur, l'activité et la densité. En conclusion, cette thèse fournit un cadre complet pour comprendre et modéliser la formation de paires d'ions dans les systèmes électrolytiques à solvants mixtes. En améliorant le modèle ePPC-SAFT avec de nouvelles approches de formation de paires d'ions, cette recherche contribue tant aux aspects théoriques que pratiques de la thermodynamique des électrolytes, ouvrant de nouvelles possibilités pour des applications industrielles et académiques

    Antibiotic resistance, virulence factors and genotyping of Uropathogenic Escherichia coli strains

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    Abstract Background The way of treating different types of infectious diseases is really important. Using genotyping method, we can determine the genetic relatedness between the organisms with different resistance profile from different sources. The aim of this study was to determine antibiotic resistance and genotyping of uropathogenic Escherichia coli (UPEC) strains using pulsed field gel electrophoresis (PFGE). Method Escherichia coli (E. coli) strains were recovered from the patients with urinary tract infections (UTI) whom admitted in several major hospitals in Tehran. Antibiotic susceptibility testing was done according to CLSI guideline. The present of some virulence factor have been detected using PCR assay. Genotyping of the strains was performed by PFGE and all PFGE profiles were subjected to data processing. Result In total, 60 E. coli strains were subjected to the study. Most of E. coli isolates were resistant to cefepime (100%) and cephalothin (74%) and susceptible to imipenem (100%), vancomycin (100%) and doxycycline (100%). Among the UPEC isolates the prevalence of fimbriae type I (fimH), hemolysin (hlyA) and aerobactin (aer) genes were 89%, 60% and 90%, respectively. The PFGE differentiated E. coli strains into 33 different genetic clusters. Majority (30%) of them including PFGE type 11 generated 15 bands, while PFGE type 2 was the lowest (2%) prevalent group with 9 bands. Conclusion The result showed that the antibiotic resistance is escalating rapidly. UPEC strains causing infections are more likely to harbor certain virulence genes. Our finding also showed E. coli strains isolated under the study were belonged to the diverse clones
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