20 research outputs found

    The Effect of Training Flow Chart Behavioral Management Program by Mobile to Mothers of Children with Oppositional Defiant Disorder for Reducing Oppositional and Hyperactivity Symptoms: one-single sample experimental study

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    Introduction: Opposition and hyperactivity are among behaviors of children with Oppositional Defiant Disorder (ODD). Nowadays, due to the changes in life style and busy life, direct referring to health provider is difficult. Therefore, the present study was done to examine the effectiveness of training behavior management flowchart by mobile to mothers for reducing oppositional and hyperactivity symptoms in children with oppositional defiant disorder. Method: This research was done in Tehran/ Iran in 2018 and through single case experiment by A-B model. Four mothers whose children had gained high scores of ODD were selected for training in eighth sessions of 60-90 minutes. Mothers received the training program of behavior management for six virtual sessions through mobile phone and two in person sessions. Data were analyzed using chart, improve percent and RCI. Results: The overall improvement was 61.43% for defiant and 69.74% for hyperactivity. In one-month follow up, both mentioned variables improved (75.77% and 79.47% respectively). According to the results, the two hypotheses were clinically significant. Conclusion: The mobile health technology is a low cost, available, and suitable method for mental health services and can be used as a complementary health service for mothers who have a child with oppositional defiant disorder

    Application of traveling salesman problem in generating a collision-free tool path in drilling

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    In machining, the tool path is generated according to the workpiece geometry and arrangement of holes. Majority of Computer Aided Manufacturing (CAM) software offer a set of predefined strategies to choose from. These tool paths are mostly far from being the optimum path, specifically for complex geometries with non-flat surfaces. This thesis introduces a new algorithm based on Travelling Salesman Problem (TSP). The proposed local search algorithm generates an optimum collision free tool path in drilling operations. The developed optimization algorithm considers multiple constraints such as location of tool origin and presence of obstacles. Furthermore, a discussion on stopping criteria for the developed algorithm is presented. Obtained results confirm the proposed algorithm is capable of providing optimum collision free path with more than 50% reduction (in given examples) in path length compared to the HSMWorks software

    The study of oil incomes on the employment in Iran based on auto regression model with wide intervals

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    Unemployment is so important and sensitive that in most of developing countries, high unemployment rate is considered as one of the most important signs of underdevelopment. It is clear that employment creation in any economic sector needs investing. On the other hand, oil incomes have been always considered as one of the main resources of state income in the economy. Because oil has a double role both in providing energy needed for economic development plan and providing currency needs of these plans, it is a driving force and key sector of national economy. Given to the mentioned issues by ARDL method, this research studies the effect of oil and nonoil incomes on the employment in Iran during 1961-2006. The method of error correction model was used in order to estimate the short-term relationship between variables in which most variables were meaningful at 90% level and the coefficient of error correction term equaled -0.2436 that shows 0.24 adjustment of imbalance of one period in employment during next period and so adjustment toward balance is slow. R2 value is also 0.98 that indicates high explanatory power of pattern. In long-term adjustment relationship, intercept has no effect and according to unit root hypothesis test, there is long-term adjustment relationship between variables of pattern and all variables are meaningful. Coefficient of oil and nonoil incomes variables is positive and revolution dummy variable is positive and the coefficient of gross domestic production and dummy variable for years of war is negative

    The study of oil incomes on the employment in Iran based on auto regression model with wide intervals

    Get PDF
    Unemployment is so important and sensitive that in most of developing countries, high unemployment rate is considered as one of the most important signs of underdevelopment. It is clear that employment creation in any economic sector needs investing. On the other hand, oil incomes have been always considered as one of the main resources of state income in the economy. Because oil has a double role both in providing energy needed for economic development plan and providing currency needs of these plans, it is a driving force and key sector of national economy. Given to the mentioned issues by ARDL method, this research studies the effect of oil and nonoil incomes on the employment in Iran during 1961-2006. The method of error correction model was used in order to estimate the short-term relationship between variables in which most variables were meaningful at 90% level and the coefficient of error correction term equaled -0.2436 that shows 0.24 adjustment of imbalance of one period in employment during next period and so adjustment toward balance is slow. R2 value is also 0.98 that indicates high explanatory power of pattern. In long-term adjustment relationship, intercept has no effect and according to unit root hypothesis test, there is long-term adjustment relationship between variables of pattern and all variables are meaningful. Coefficient of oil and nonoil incomes variables is positive and revolution dummy variable is positive and the coefficient of gross domestic production and dummy variable for years of war is negative

    The study of oil incomes on the employment in Iran based on auto regression model with wide intervals

    Get PDF
    Unemployment is so important and sensitive that in most of developing countries, high unemployment rate is considered as one of the most important signs of underdevelopment. It is clear that employment creation in any economic sector needs investing. On the other hand, oil incomes have been always considered as one of the main resources of state income in the economy. Because oil has a double role both in providing energy needed for economic development plan and providing currency needs of these plans, it is a driving force and key sector of national economy. Given to the mentioned issues by ARDL method, this research studies the effect of oil and nonoil incomes on the employment in Iran during 1961-2006. The method of error correction model was used in order to estimate the short-term relationship between variables in which most variables were meaningful at 90% level and the coefficient of error correction term equaled -0.2436 that shows 0.24 adjustment of imbalance of one period in employment during next period and so adjustment toward balance is slow. R2 value is also 0.98 that indicates high explanatory power of pattern. In long-term adjustment relationship, intercept has no effect and according to unit root hypothesis test, there is long-term adjustment relationship between variables of pattern and all variables are meaningful. Coefficient of oil and nonoil incomes variables is positive and revolution dummy variable is positive and the coefficient of gross domestic production and dummy variable for years of war is negative

    The Effectiveness of training of self-help program toward the parenthood on worry in pregnancy period among the nulliparous women

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    Background and objective: accept of parenting duty needs the psychological and emotional readiness. This study aimed to investigate the effectiveness of training of self-help program toward the parenthood on worry in pregnancy period among the nulliparous women. Methods:The research method of present study was semi-experimental research with pre-posttest with control group. The study population included 30 nulliparous women who were referred to the health center in 3 phase of Andisheh city, Tehran by 2017. The women were selected by simple randomized sampling and were assigned to two groups (each group was 15 women). The experimental group received nine session of self-help program toward the parenthood. The information were collected by prenatal distress questionnaire (PDQ) made by Alderdice et al (2011). The obtained data were analyzed using ANCOVA. The data utilized by SPSS version 21. Results: The ANCOVA analysis of the data showed that the experimental group had Significant decrease in factor 1 concerns about birth and the baby( F=48.689,

    A Study of the Relationship of Outlook and Practical Pledge to Prayers and Spiritual Experiences with Mental Health of Girl Students of University of Tehran

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    For downloading the full-text of this article please click here.Background and Objective: The implementation of religious orders and practices is one of the ways to save and relieve people from troubles, discomforts and stresses. The aim of the present study was to investigate the relationship of outlook and practical pledge to prayer and spiritual experiences with mental health of girl students of University of Tehran.Methods: The present study is descriptive correlational. The statistical population included all female students of University of Tehran and the sample population consisted of 150 participants selected by random cluster sampling. The instruments used for data collection included practical attitude and practice of prayer questionnaire, daily spiritual experiences and general health of Goldberg GHQ-28. For data analysis, Pearson correlation and simultaneous regression were used. In this study, all the ethical considerations have been observed and no conflict of interest was reported by the authors.Results: The results showed that prayer's effectiveness in individual and social life with an r value of -0.251, attention and practice to the needy with an r value of -0.507, commitment and serious efforts to perform prayers with a value of -0.373, care and presence of the heart in prayer with the value of -0/251 and the total score of practical commitment to prayer with a value of -0/401 had a negative and inverse relationship with mental health (P<0/05). Also, the sense of presence of God with the value of -0/498, the relationship with God with the value of -/0325, the sense of responsibility towards others with the value of -0/259 and spiritual experiences with the value of -/0474 was negatively and inversely correlated with mental health significant (P<0/05). In other words, there was a significant and negative correlation between the components of spiritual experiences and mental health.Conclusion: Practical commitment to prayers plays an essential role in individuals’ mental health and well-being. Also, religion has a mental health supportive function. Spiritual experiences contribute to prevention of mental illnesses and facilitate the management of illnesses as well as the recovery process.For downloading the full-text of this article please click here.Please cite this article as: Shirzadi Z, Khodabakhshi-Koolaee A, Falsafinejad MR. A Study of the Relationship of Outlook and Practical Pledge to Prayers and Spiritual Experiences with Mental Health of Girl Students of University of Tehran. PizhĆ«hish dar dÄ«n va salāmat. 2020; 5(4): 99-113.  https://doi.org/10.22037/jrrh.v5i4.2223

    Covalent modification of reduced graphene oxide with piperazine as a novel nanoadsorbent for removal of H2S gas

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    In the present research, piperazine grafted-reduced graphene oxide RGO-N-(piperazine) was synthesized through a three-step reaction and employed as a highly efficient nanoadsorbent for H2S gas removal. Temperature optimization within the range of 30–90 °C was set which significantly improved the adsorption capacity of the nanoadsorbent. The operational conditions including the initial concentration of H2S (60,000 ppm) with CH4 (15 vol%), H2O (10 vol%), O2 (3 vol%) and the rest by helium gas and gas hour space velocity (GHSV) 4000–6000 h−1 were examined on adsorption capacity. The results of the removal of H2S after 180 min by RGO-N-(piperazine), reduced graphene oxide (RGO), and graphene oxide (GO) were reported as 99.71, 99.18, and 99.38, respectively. Also, the output concentration of H2S after 180 min by RGO-N-(piperazine), RGO, and GO was found to be 170, 488, and 369 ppm, respectively. Both chemisorption and physisorption are suggested as mechanism in which the chemisorption is based on an acid–base reaction between H2S and amine, epoxy, hydroxyl functional groups on the surface of RGO-N-(piperazine), GO, and RGO. The piperazine augmentation of removal percentage can be attributed to the presence of amine functional groups in the case of RGO-N-(piperazine) versus RGO and GO. Finally, analyses of the equilibrium models used to describe the experimental data showed that the three-parameter isotherm equations Toth and Sips provided slightly better fits compared to the three-parameter isotherms

    On the Modelling and Numerical Simulation of Non-Newtonian Blood Flow in an Aneurysm

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    Cardiovascular diseases, specifically cerebral aneurysms, represent a major cause of morbidity and mortality, having a significant impact on the cost and overall status of health care. In the present work, we employ a haemorheological blood model originally proposed by Owens to investigate the haemodynamics of blood flow through an aneurytic channel. This constitutive equation for whole human blood is derived using ideas drawn from temporary polymer network theory to model the aggregation and disaggregation of erythrocytes in normal human blood at different shear rates. To better understand the effect of rheological models on the haemodynamics of blood flow in cerebral aneurysms we compare our numerical results with those obtained with other rheological models such as the Carreau-Yasuda (C-Y) model. The results show that the velocity profiles for the Newtonian and the Owens models are approximately similar but differ from those of the C-Y model. In order to stabilize our numerical simulations, we propose two new stabilization techniques, the so-called N-Owens and I-Owens methods. Employing the N-Owens stabilization method enables us to capture the effect of erythrocyte aggregation in blood flow through a cerebral aneurysm at higher Weissenberg (We) and Reynolds (Re) numbers than would otherwise be possible.Comment: 21 pages, 20 figures, 2 appendixe

    The Effectiveness of training of self-help program toward the parenthood on worry in pregnancy period among the nulliparous women

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    Background and objective: accept of parenting duty needs the psychological and emotional readiness. This study aimed to investigate the effectiveness of training of self-help program toward the parenthood on worry in pregnancy period among the nulliparous women. Methods:The research method of present study was semi-experimental research with pre-posttest with control group. The study population included 30 nulliparous women who were referred to the health center in 3 phase of Andisheh city, Tehran by 2017.&nbsp;The women were selected by simple randomized sampling and were assigned to two groups (each group was 15 women). The experimental group received nine session of self-help program toward the parenthood. The information were collected by prenatal distress questionnaire (PDQ) made by Alderdice et al (2011). The obtained data were analyzed using ANCOVA. The data utilized by SPSS version 21. Results: The ANCOVA analysis of the data showed that the experimental group had Significant decrease in factor 1 concerns about birth and the baby( F=48.689, P<0.001), also, factor 2 concerns about physical symptoms and body image(F=179.340,P<0.001) and factor 3 concerns about emotions and relationships(F=204.574, P<0.001). Conclusion: the findings revealed that toward the parenthood program could be useful for reducing worry in pregnancy period among the nulliparous women. This program might be offer along with other physical checkup for mothers in health centers and clinics. Paper Type:Research Article
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