52 research outputs found

    The Relationship between Self-concept and Anxiety among Kerman University Students

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    Background: Individual's self-concept is of great importance for mental health professionals, and it can be said that an individual has mental health if he/she has a positive self-concept. Recognition of factors affecting mental and physical health of persons, especially students, is of special importance. Accordingly, the objective of this research was to investigate the relationship between self-concept and anxiety amongst university students and to find strategies to improve their mental health status. Methods: This is a cross-sectional descriptive - analytical study. Statistical population included all students studying in the intended university in Kerman during the academic year 2010-2011. A total of 375 students were randomly selected through cluster sampling. Data gathering instruments were "Beck self- concept" and "Cattell Anxiety" questionnaires. Data were analyzed using Pearson correlation coefficient and regression model. Results: According to the obtained results, there is no relationship between anxiety and self-concept. But age showed a significant relationship with anxiety in a way that anxiety decreased with age increase. Conclusion: It seems that self-concept and anxiety have no relation. But, younger students probably need more support for controlling their anxiety

    A Systematized Literature Review: Defining and Developing Engineering Competencies

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    Essential competencies have been identified for engineers working in industry. These competencies include (but are not limited to) critical thinking, problem-solving, teamwork, and communication. Engineering education research has shown, however, that engineering undergraduate students often fail to develop these crucial competencies. The industry has also noted that recent graduates exhibit competency gaps. To address these gaps, it is important for higher education institutions to seek to understand the competencies identified as necessary in the industry. Moreover, one could argue educational institutions should develop and assess students’ competencies based on these professional demands. This research systematically reviews literature related to this topic. This review seeks to answer two questions: 1) What are the competencies engineering students must have to be successful in the world of practice? 2) How can engineer education help students to develop these competencies? A total of 30 articles were identified as relevant and reviewed. Two themes were applied: 1) Identification of engineering competencies 2) Approaches to address competency shortfalls. Review of the literature suggests that while educational institutions are mostly aligned with engineering competencies hailed as important to ABET, there is still room to improve. The most frequent competencies mentioned in the literature include communication skills, teamwork, and problem-solving skills. Results suggest developing a continuous improvement mindset will encourage both educators and their institutions to include stakeholders such as industry into account as they systematically assess and review their graduating engineering students and undergraduate programs. Further, to date, there does not appear to be a single accepted approach or best practice for incorporating targeted competencies into engineering curricula

    The study of the relationship between managers’ roles and motivation among personnel

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    In addition to doing their organizational tasks, the managers play their roles such as interpersonal, communicative, and decision making roles. On the other hand, properly perceived management toward personnel’s motivation may also serve as a valuable tool in order to recognize the reasons for behavior in organizations and prediction of the impact of their administrative measures. In this sense, the current investigation deals with study on the relationship between the roles of managers and creation of motive among personnel. The research statistical population comprises of all personnel of Mashiz Gharzolhasaneh and saving fund branches in Kerman province (Iran) where 196 of them were chosen as sample group by means of statistical formula. Data were collected by means of questionnaire and with simple randomized sampling technique. Research findings showed that there is less correlation between interpersonal roles and creation of motive compared to managers’ roles while the maximum correlation corresponds to communicative roles and motivation. Similarly, there is also relatively high correlation between roles of decision making and motivation

    Design, Development, and Testing of Polymeric Microblades: A Novel Design of Microneedles for Biomedical Applications

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    Conventional microneedles (MNs) are designed as an array of micrometer-sized projections that can painlessly penetrate the skin. Fabrication of MN arrays can be costly and time-consuming; additionally, full penetration of an array of MNs with ten to thousands of projections into the skin may not be achievable. This paper reports a new design of MNs known as microblades (MBs) which consist of a singular microstructure. The single integrated design of the MBs reduces the fabrication cost and time, facilitates more effective penetration, and may pave the way for the scale-up manufacturing of MN devices. Different designs of MBs are fabricated by two-photon polym-erization technique, followed by polydimethylsiloxane micromolding and soft embossing to create replicas. The mechanical integrity of the designs is deter-mined by a series of compression tests. Skin insertion and drug diffusion studies are conducted using a custom-made applicator to insert the MBs into the porcine abdominal skin to demonstrate delivery of fluorescein tracer. MBs insertion and penetration capabilities and the diffusion of a model drug into a multi-layered human skin are demonstrated using finite element analysis and 3D diffusion models. The results demonstrate the functional capabilities of the MBs as an alternative to MN arrays

    Investigating the Efficiency of Tejarat Bank Information Systems in Presenting Reports to the Managers

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    This study aims to investigate the efficiency of Tejarat Bank information systems and the extent to which bank managers apply these systems. Today's condition of trading and competitive atmosphere and the evolution in financial and banking systems of countries has highlighted the need for a comprehensive and responsive evolution to satisfy the society's needs in any developing and sustainable economy. Hypotheses have been formulated to assess and evaluate the present systems from various dimensions. This study was carried out in all branches of Tejarat Bank in Kerman Province in 2014. Data was collected through questionnaire and field study. Data analysis have been done through statistical tests. Findings showed that Tejarat Bank accounting information system has great potentiality and efficiency in providing the bank managers with adequate information. On the other side, the bank mangers made the least use of the information presented by these systems

    Statistical and fractal analysis of nitrogen ion implanted tantalum thin films

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    Please read abstract in the article.https://link.springer.com/journal/3392021-06-03hj2020Mechanical and Aeronautical Engineerin

    The study of mechanical and statistical properties of nitrogen ion-implanted Tantalum bulk

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    In the present study, structural and mechanical properties of Tantalum samples which affected by nitrogen ion implantation have been investigated. The monofractal analysis of the samples has been carried out. These samples have been implanted with ions at different doses of 5 Ă— 10^17 and 7 Ă— 10^17 at energy 30 keV. For characterizing the samples, atomic force microscopy (AFM), EDX images analysis, and corrosion measurements, have been used. By varying the ion energy, the statistical characteristics will vary. In order to analyse the morphology of produced rough samples, the correlation function of samples have been studied and their correlation length is evaluated. Based on the statistical concept the power spectral density the height distribution, and the higher-order moments (skewness and kurtosis) of the surface height have been measured. These characteristics are the important criterions for the the monofractal evaluation. Our numerical calculations based on experimental data show the deviation from gaussian distribution. Also, the fractal dimension of the films has been calculated based on roughness exponent results. Indeed, irradiating the surfaces with energetic ions results in producing the self-affine fractal surfaces. This process via an erosion process affects the statistical characteristics which have been calculated for different samples. Because of variation in the morphology of rough samples, the corrosion of samples shows a non-uniform behaviuor

    The study of mechanical and statistical properties of nitrogen ion-implanted Tantalum bulk

    Get PDF
    In the present study, structural and mechanical properties of Tantalum samples which affected by nitrogen ion implantation have been investigated. The monofractal analysis of the samples has been carried out. These samples have been implanted with ions at different doses of 5 Ă— 1017 and 7 Ă— 1017 at energy 30 keV. For characterizing the samples, atomic force microscopy (AFM), EDX images analysis, and corrosion measurements, have been used. By varying the ion energy, the statistical characteristics will vary. In order to analyse the morphology of produced rough samples, the correlation function of samples have been studied and their correlation length is evaluated. Based on the statistical concept the power spectral density the height distribution, and the higher-order moments (skewness and kurtosis) of the surface height have been measured. These charactristics are the important criterions for the the monofractal evaluation. Our numerical calculations based on experimental data show the deviation from gaussian distribution. Also, the fractal dimension of the films has been calculated based on rougness exponent results. Indeed, irradiating the surfaces with energetic ions results in producing the self-affine fractal surfaces. This process via an erosion process affects the statistical characteristics which have been calculated for different samples. Because of variation in the morphology of rough samples, the corrosion of samples shows a non-uniform behavior.https://www.elsevier.com/locate/ijleohj2022Mechanical and Aeronautical Engineerin
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