427 research outputs found

    A Morphometric Survey among Three Iranian Horse Breeds with Multivariate Analysis

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    Three Iranian horse breeds, Turkoman, Caspian, and Kurdish, are the most important Iranian horse breeds which are well known in all around of the world because of their beauty, versatility, great stamina, and  intelligence. Phenotypic characterization was used to identify and document the diversity within and between distinct breeds, based on their observable attributes. Phenotypic characterization and body biometric in 23 traits were measured in 191 purebred horses belonging to three breeds, i.e. Turkoman (70 horses), Kurdish (77 horses), and Caspian (44 horses).  Caspian breed was  sampled from the Provinces of Alborz and Gilan. Kurdish breed was sampled from the Provinces of Kurdistan, Kermanshah, and Hamadan. Turkoman breed was sampled from the Provinces of Golestan, Markazi, and Isfahan. Multivariate analysis of variance (MANOVA) was implemented. In addition, Canonical Discriminate Analysis (CDA), Principal Component Analysis (PCA), and Custer analysis were executed for assessing the relationship among the breeds. All statistical analysis was executed by SAS statistical program. The results of our investigation represented the breeds classification into 3 different classes (Caspian, Turkoman, and Kurdish) based on different morphometrical traits. Caspian breed with smaller size in most variables was detached clearly from the others with more distance than Kurdish and Turkoman breeds. The result showed that the most variably trait for classification was Hind Hoof Length. Adaptation with different environments causes difference in morphology and difference among breeds. We can identify and classify domestic population using PCA, CDA, and cluster analysis

    Confusion at the beginning of sexual intercourse, the challenge of patients after coronary artery bypass graft surgery in Iran: A qualitative study.

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    BackgroundMany patients suffer from sexual dysfunction after coronary artery bypass graft surgery, but they refuse to propose and follow up on the problem due to the cultural structures prevailing in Iranian society. Untreated sexual dysfunction will disturb the quality of life of these patients. This study was performed to explain the experiences of male patients from sexual problems after coronary artery bypass graft surgery.Materials and methodsThis qualitative study was performed with the approach of conventional content analysis in Tehran in 2020. The data were collected through semi-structured interviews with 12 men after coronary artery bypass graft surgery at the hospital's cardiac surgery clinic, as well as the surgeon's clinic. Participants were selected by the targeted sampling method. After obtaining informed consent, the collected data were written word by word, and the content analysis approach was used to name the data, create analytical codes, and determine subcategories and categories. The data were analyzed by MAXQDA 10 software.ResultsThe findings of this study show that the dimensions of confusion in patients' sexual intercourse after coronary artery bypass graft surgery in four subcategories of challenges of the first intercourse after surgery, ambiguity in how to obtain information, the ambiguity of sexual issues after surgery, and spouse are concerned about having sexual intercourse.ConclusionThe results of this study show that male patients who have undergone coronary artery bypass graft surgery have many ambiguities in the process of sexual intercourse, which passes the beginning of sexual intercourse with fear and avoidance of intercourse. Postoperative patients do not propose these problems with the medical staff when they suffer from sexual dysfunction or ambiguity due to the taboo of talking about sexual intercourse. Eventually, the patient and his or her partner become confused about sexual intercourse after surgery. Therefore, it is recommended that policymakers in the field of health create the culture and planning for solving the ambiguities created in the path of sexual intercourse of these patients

    Psychological Violence in the Health Care Settings in Iran: A Cross-Sectional Study

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    Background: Psychological violence is the most common form of workplace violence that can affect professional performance and job satisfaction of health care workers. Although several studies have been conducted in Iran, but there is no consensus regarding current status of such violence. Objectives: This study aimed to investigate the prevalence of psychological violence among healthcare workers employed at teaching hospitals in Iran. Patients and Methods: In this cross-sectional study, 5874 health professionals were selected using multistage random sampling. Data were collected using a self-administered questionnaire developed by the International Labor Organization, International Council of Nurses, World Health Organization, and Public Services International. Descriptive statistics were used to analyze the data. Results: It was found that 74.7% of the participants were subjected to psychological violence during the past 12 months. Totally, 64.5% of psychological violence was committed by patients’ families, but 50.9% of participants had not reported the violence, and 69.9% of them believed that reporting was useless. Conclusions: The results are indicative of high prevalence of psychological violence against healthcare workers. Considering non-reporting of violence in more than half of participants, use of an appropriate reporting system and providing training programs for health professionals in order to prevent and manage workplace violence are essential

    Effect of Ca substitution on crystal structure and superconducting properties of ferromagnetic superconductor RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta

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    We have investigated the effect of Ca substitution for Sr site on structural, magnetic and superconducting properties of RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta system. In this system, the magnetic coupling of RuO2 and CuO2 plays an important role in magnetic and superconducting states. X-ray diffraction analysis shows that all samples are single phase and the lattice parameters decrease continuously by increasing Ca content. The onset superconducting transition temperature is found to decrease with Ca substitution. As Ca content increases, rotation of the RuO6 octahedron increases and Ru-O(1)-Ru angle decreases. These variations strengthen the magnetic moments in the RuO2 planes. The enhancement of weak ferromagnetic component and hole trapping by Ru magnetic moments in RuO2 planes reduces the electrical conduction, and destroys the superconducting state in the system. Analysis of the resistivity data (rho) based on the hoping conduction mechanism, indicates a variation of the hoping exponent (p) across the magnetic transition at T-m. The hoping exponent p is not affected sharply by Ca concentration. (C) 2011 Elsevier B.V. All rights reserved

    Prediction of potential cancer-risk regions based on transcriptome data: towards a comprehensive view

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    A novel integrative pipeline is presented for discovery of potential cancer-susceptibility regions (PCSRs) by calculating the number of altered genes at each chromosomal region, using expression microarray datasets of different human cancers (HCs). Our novel approach comprises primarily predicting PCSRs followed by identification of key genes in these regions to obtain potential regions harboring new cancer-associated variants. In addition to finding new cancer causal variants, another advantage in prediction of such risk regions is simultaneous study of different types of genomic variants in line with focusing on specific chromosomal regions. Using this pipeline we extracted numbers of regions with highly altered expression levels in cancer condition. Regulatory networks were also constructed for different types of cancers following the identification of altered mRNA and microRNAs. Interestingly, results showed that GAPDH, LIFR, ZEB2, mir-21, mir-30a, mir-141 and mir-200c, all located at PCSRs, are common altered factors in constructed networks. We found a number of clusters of altered mRNAs and miRNAs on predicted PCSRs (e.g.12p13.31) and their common regulators including KLF4 and SOX10. Large scale prediction of risk regions based on transcriptome data can open a window in comprehensive study of cancer risk factors and the other human diseases.Arghavan Alisoltani, Hossein Fallahi, Mahdi Ebrahimi, Mansour Ebrahimi, Esmaeil Ebrahimi

    Knowledge, attitude, and clinical skill of emergency medical technicians from Tehran emergency center in trauma exposure

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    Introduction: Prehospital care is the first part of the trauma treatment and care system. Diagnostic and therapeutic measures taken before these patients arrive at the hospital plays significantly reduce mortality and improve their outcomes. Therefore, the present study aimed to determine the knowledge, attitude, and clinical skill of emergency medical technicians in Tehran Emergency Center in trauma exposure. Methods: In this descriptive study, 213 participants were selected through stratified random sampling. Data were collected using a four-part questionnaire including demographic information, trauma knowledge questionnaire, trauma attitude questionnaire, and a clinical skill checklist. To compare the level of knowledge, attitude, and clinical skills on the one hand and demographic variables, on the other hand, independent samples t-test and one-way ANOVA were utilized. Then, to examine the normality of data distribution, Kolmogorov-Smirnov test with Bonferroni post hoc test was used to compare mean scores on different levels of the variables in questionnaires. Data were analyzed in SPSS/17 using descriptive and inferential statistics. Results: Results showed that the majority of participants (81.1%) had an average knowledge of trauma. Examining their attitude regarding trauma revealed that the majority (88.3%) had a positive attitude toward trauma and taking care of trauma patients. Moreover, the skill of 62.4% of technicians regarding trauma was good. Based on Pearson's correlation, significant positive correlations existed between scores of knowledge and scores of attitude (r = 0.186, P < 0.05), scores of knowledge and scores of clinical skill (r = 0.333, P < 0.05), and scores of attitude and scores of clinical skill (r = 0.258, P < 0.05). Conclusion: According to the results, emergency medical technicians in Tehran had a good level of knowledge, attitude, and clinical skills in trauma exposure. However, to maintain and enhance the level of knowledge and skills, in-service training should be continued more vigorously and periodically evaluated in the clinical practic

    Knowledge, attitude, and clinical skill of emergency medical technicians from Tehran emergency center in trauma exposure

    Get PDF
    Introduction: Prehospital care is the first part of the trauma treatment and care system. Diagnostic and therapeutic measures taken before these patients arrive at the hospital plays significantly reduce mortality and improve their outcomes. Therefore, the present study aimed to determine the knowledge, attitude, and clinical skill of emergency medical technicians in Tehran Emergency Center in trauma exposure. Methods: In this descriptive study, 213 participants were selected through stratified random sampling. Data were collected using a four-part questionnaire including demographic information, trauma knowledge questionnaire, trauma attitude questionnaire, and a clinical skill checklist. To compare the level of knowledge, attitude, and clinical skills on the one hand and demographic variables, on the other hand, independent samples t-test and one-way ANOVA were utilized. Then, to examine the normality of data distribution, Kolmogorov-Smirnov test with Bonferroni post hoc test was used to compare mean scores on different levels of the variables in questionnaires. Data were analyzed in SPSS/17 using descriptive and inferential statistics. Results: Results showed that the majority of participants (81.1%) had an average knowledge of trauma. Examining their attitude regarding trauma revealed that the majority (88.3%) had a positive attitude toward trauma and taking care of trauma patients. Moreover, the skill of 62.4% of technicians regarding trauma was good. Based on Pearson's correlation, significant positive correlations existed between scores of knowledge and scores of attitude (r = 0.186, P < 0.05), scores of knowledge and scores of clinical skill (r = 0.333, P < 0.05), and scores of attitude and scores of clinical skill (r = 0.258, P < 0.05). Conclusion: According to the results, emergency medical technicians in Tehran had a good level of knowledge, attitude, and clinical skills in trauma exposure. However, to maintain and enhance the level of knowledge and skills, in-service training should be continued more vigorously and periodically evaluated in the clinical practic

    Sexual dysfunction status in iranian cardiovascular patients: A systematic review

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    Context: Sexual dysfunction is one of the challenges faced by heart patients. In Iran, because of the cultural structure, addressing sexual issues and problems is difficult in these patients and the follow-up of heart problems causes these patients’ sexual relations to be marginalized. Considering the fact that there is no general conclusion about the prevalence and types of sexual dysfunction in these patients in the Iranian society, in order to gain comprehensive knowledge about this phenomenon, this study was conducted as a systematic review to investigate the sexual dysfunction status in Iranian heart patients. Evidence Acquisition: In this systematic review, articles published in Persian and English were retrieved from Web of Science, PubMed, Scopus, Medlib, Magiran, SID, Iranmedex, and Google Scholar databases using keywords without time limits. Then, the articles meeting the inclusion criteria were studied and analyzed. Out of the 1011 articles retrieved, 12 were reviewed and analyzed. To extract the data, two experienced researchers reviewed and analyzed the articles simultaneously, and the co-working professors of the research team evaluated the quality of the articles separately to increase the validity and reliability of the study. Results: All reviewed articles were quantitative studies. The results of extracting the findings indicated male sexual dysfunction, including erectile dysfunction, orgasmic function, sexual desire, sexual satisfaction, and marital satisfaction. In female patients, sexual satisfaction and marital satisfaction were impaired. Conclusions: According to the results, heart diseases caused sexual dysfunction in heart patients. Patients with heart diseases had significant problems, such as lack of sexual desire, sexual dissatisfaction, and decreased frequency of sexual activity. Considering the severity of this disorder in the Iranian society, the treatment team is recommended to pay serious attention to sexual relations in these patients and consider the improvement of their sexual function as an integral part of the cardiac rehabilitation function
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