180 research outputs found

    Predict to self-injury behavior in men with borderline personality disorder based on their levels of distress tolerance and self-compassion

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    زمینه و هدف: رفتارهای خود جرحی در مبتلایان به اختلال شخصیت مرزی یکی از علایم مهم این اختلال بوده و با پیامدهای مضر همراه می شود. پژوهش حاضر با هدف بررسی پیش بینی اقدام به رفتار خود جرحی در مردان مبتلا به اختلال شخصیت مرزی بر اساس سطوح تحمل آشفتگی و دلسوزی به خود انجام گرفت. روش بررسی: روش پژوهش حاضر توصیفی و از نوع همبستگی بود. کلیه مردان مبتلا به اختلال شخصیت مرزی که در نیمه اول سال 1393 به بخش روان پزشکی بیمارستان امام سجاد (ع) تهران مراجعه کرده بودند، جامعه آماری پژوهش حاضر را تشکیل دادند. از بین جامعه آماری فوق، تعداد 94 نفر به روش نمونه گیری غیر احتمالی در دسترس انتخاب شده و بعد از مصاحبه بالینی، پرسشنامه خود آسیبی عمدی و مقیاس های تحمل آشفتگی و دلسوزی به خود را تکمیل کردند. سپس داده های به دست آمده نیز با استفاده از روش همبستگی پیرسون و تحلیل رگرسیون چندگانه با نرم افزار SPSS تحلیل شد. یافته ها: نتایج نشان داد رفتارهای خود جرحی با نمره کلی تحمل آشفتگی (26/0-r=، 012/0>P) و نمره کلی دلسوزی به خود (31/0-r=، 002/0>P) رابطه منفی دارد. نتایج تحلیل رگرسیون نیز نشان داد که 13 از کل واریانس رفتارهای خود جرحی به وسیله تحمل آشفتگی (23/3 F=، 01/0>P) و 31 آن به وسیله دلسوزی به خود (55/6 F=، 001/0>P) پیش بینی می شود. نتیجه گیری: نتایج این پژوهش نشان داد که عدم تحمل آشفتگی و دلسوزی به خود پایین می تواند رفتارهای خود جرحی را در افراد مبتلا به اختلال شخصیت مرزی پیش بینی کند

    Nurses' Requirements for Relief and Casualty Support in Disasters: A Qualitative Study

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    Background: Nurses are among the most important groups engaged in casualty support, regardless of the cause, and they are one of the largest care groups involved in disasters. Consequently, these workers should gain proper support and skills to enable effective, timely, responsible and ethical emergency responses. Objectives: In this study, we investigated the needs of nurses for proper casualty support in disasters, to facilitate better planning for disaster management. Materials and Methods: This was a qualitative content analysis study. Interviews were performed with 23 nurses, at educational hospitals and the Faculty of Nursing at Kerman Medical University, who had a minimum of five years working experience and assisted in an earthquake disaster. Intensity and snowball sampling were performed. Data was collected through semi-structured interviews. Interviews were transcribed and coded into main themes and subthemes. Results: Four major themes emerged from the data; 1) psychological support, 2) appropriate clinical skills education, 3) appropriate disaster management, supervision and programming, and 4) the establishment of ready for action groups and emergency sites. The participants’ comments highlighted the necessity of training nurses for special skills including emotion management, triage and crush syndrome, and to support nurses' families, provide security, and act according to predefined programs in disasters. Conclusions: There are a wide range of requirements for disaster aid. Proper aid worker selection, frequent and continuous administration of workshops and drills, and cooperation and alignment of different governmental and private organizations are among the suggested initiatives

    Resistance of different grape cultivars to grape erineum mite, Colomerus vitis (Acari: Eriophyidae), in the laboratory

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    The grape erineum mite (GEM), Colomerus vitis Pagenstecher, is a serious pest of grape orchards in western Iran and sometimes causes a considerable damage to the crop. Initial observations in Hamedan region showed that the damage of the pest is not the same on different cultivars. Therefore, the resistance of different vine cultivars to GEM was studied to determine the potential use of resistant cultivars in the pest management programs. The resistance of ten vine cultivars including White Thompson seedless, Red Thompson seedless, Fakhri, Yaghuti, Asgari, Muscat Gordo, Khalili, Flame seedless, Gazne and Shahani were studied under laboratory conditions at a temperature of 25 ± 1°C, 65 ± 5% R.H. and a photoperiod of L16: D8 h using a pot disk method. Muscat Gordo, Gazne and White Thompson seedless cultivars showed the lowest feeding repellency to the GEM with 100.4 ± 0.45, 95.5 ± 0.77 and 87.4 ± 0.64 mites per leaf and the highest feeding repellency was observed in Shahani, Flame seedless and Yaghuti with 20 ± 1.23, 24.2 ± 1.24 and 24.7 ± 2.15 mites per leaf, respectively. The highest oviposition rate was observed in Muscat Gordo and Gazne with 148.31 ± 1.26 and 129.3 ± 2.26 eggs per leaves, respectively, and the lowest on Shahani with 10 ± 1.37 eggs per leaves. There was no significant difference between infested and non-infested leaf areas in Shahani. Moreover, Shahani and Yaghuti had the highest bristle-like trichome density, whereas, Muscat Gordo and Gazne had the highest hair-like trichome density. According to the obtained results, Shahani and Yaghuti had the highest, and Muscat Gordo and Gazne had the lowest resistance level to the GEM

    Psychometric properties of Persian version of body image shame scale: A study in cosmetic surgery clinics

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    Background: Body image shame considerably contributes to the development and persistence of eating and body image disorders. Objectives: The current study was done to determine the psychometric properties of the body image shame scale and introduce a suitable measure for researchers and therapists in the field of psychological health. Methods: In this study, 409 (136 men and 273 females) individuals who referred to cosmetic surgery clinics in Tehran were chosen. The construct validity of the body image shame was assessed using confirmatory factor analysis and divergent and convergent validity. To assess the divergent and convergent validity of the body compassion scale, appearance anxiety inventory, dysmorphic concern questionnaire and Forms of Self-Criticizing/Attacking and Self-Reassuring Scale were used. Internal Consistency and test-retest reliability (4 weeks' interval) were used to evaluate reliability. LISREL V8.80 and SSPS V20 were used for data analysis. Results: The results of confirmatory factor analysis showed that the two-factor model (internal and external body image shame) fitted the data (RMSEA = 0.07, NFI = 0.94, CFI = 0.92). Body image shame scale had a positive, significant correlation with dysmorphic concern, appearance anxiety, and self-criticism, and a negative, significant correlation with body compassion (P < 0.05). Also, Cronbach's alpha coefficient, for the whole of scale, internal body image shame, and external body image shame were 0.85, 0.79, and 0.82, respectively. Conclusions: Psychometric properties of the persian version of the body image shame scale were confirmed in this study. Therefore, it can be used as a valid instrument in research and clinical works in populations with concerns about body image. Copyright © 2020, Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited

    Efficiency of multi walled carbon nanotubes for removing Direct Blue 71 from aqueous solutions

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    Dye wastewater produced from industrial activity is usually toxic, resistant to biodegradation and persistent in the environment. The aim of this study was to evaluate the efficiency of multiwalled carbon nanotubes (MWCNTs) for decolorization of Direct Blue 71 (DB71). In this experimental study, the effect of various variables including contact time, solution pH, adsorbent dose, and initial dye concentration was evaluated in a batch reactor. The adsorption and kinetic models were evaluated to explain the adsorbed dye and dynamic reaction. The results of this study showed that the efficiency of dye removal increased, as the contact time and adsorbent dose increased, but as pH and initial dye concentration increased, removal efficiency decreased. The maximum efficiency of Direct Blue 71 removal was observed at acidic solution (pH=3), contact time of 90 minutes, adsorbent dose of 0.6 g/l and initial dye concentration of 25 mg/l. The adsorption of direct blue 71 best fitted the Langmuir isotherm (R2=0.87) and pseudo first order kinetic equation (R2=0.99). According to the results obtained, multiwalled nanotubes was offered as an effective adsorbent for removing direct blue 71. © Authors

    Multiple air pollutant exposure and lung cancer in Tehran, Iran

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    Lung cancer is the most rapidly increasing malignancy worldwide with an estimated 2.1 million cancer cases in the latest, 2018 World Health Organization (WHO) report. The objective of this study was to investigate the association of air pollution and lung cancer, in Tehran, Iran. Residential area information of the latest registered lung cancer cases that were diagnosed between 2014 and 2016 (N = 1,850) were inquired from the population-based cancer registry of Tehran. Long-term average exposure to PM10, SO2, NO, NO2, NOX, benzene, toluene, ethylbenzene, m-xylene, p-xylene, o-xylene (BTEX), and BTEX in 22 districts of Tehran were estimated using land use regression models. Latent profile analysis (LPA) was used to generate multi-pollutant exposure profiles. Negative binomial regression analysis was used to examine the association between air pollutants and lung cancer incidence. The districts with higher concentrations for all pollutants were mostly in downtown and around the railway station. Districts with a higher concentration for NOx (IRR = 1.05, for each 10 unit increase in air pollutant), benzene (IRR = 3.86), toluene (IRR = 1.50), ethylbenzene (IRR = 5.16), p-xylene (IRR = 9.41), o-xylene (IRR = 7.93), m-xylene (IRR = 2.63) and TBTEX (IRR = 1.21) were significantly associated with higher lung cancer incidence. Districts with a higher multiple air-pollution profile were also associated with more lung cancer incidence (IRR = 1.01). Our study shows a positive association between air pollution and lung cancer incidence. This association was stronger for, respectively, p-xylene, o-xylene, ethylbenzene, benzene, m-xylene and toluene

    Multiple air pollutants exposure and leukaemia incidence in Tehran, Iran from 2010 to 2016: a retrospective cohort study

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    OBJECTIVE: Leukaemia is one of the most common cancers and may be associated with exposure to environmental carcinogens, especially outdoor air pollutants. The objective of this study was to investigate the association of ambient air pollution and leukaemia in Tehran, Iran. DESIGN: In this retrospective cohort study, data about the residential district of leukaemia cases diagnosed from 2010 to 2016 were inquired from the Ministry of Health cancer database. Data from a previous study were used to determine long-term average exposure to different air pollutants in 22 districts of Tehran. Latent profile analysis (LPA) was used to classify pollutants in two exposure profiles. The association between air pollutants and leukaemia incidence was analysed by negative binomial regression. SETTING: Twenty-two districts of Tehran megacity. PARTICIPANTS: Patients with leukaemia. OUTCOME MEASURES: The outcome variables were incidence rate ratios (IRR) of acute myeloid and lymphoid leukaemia across the districts of Tehran. RESULTS: The districts with higher concentrations for all pollutants were near the city centre. The IRR was positive but non-significant for most of the air pollutants. However, annual mean NOx was directly and significantly associated with total leukaemia incidence in the fully adjusted model (IRR (95% CI): 1.03 (1.003 to 1.06) per 10 ppb increase). Based on LPA, districts with a higher multiple air-pollutants profile were also associated with higher leukaemia incidence (IRR (95% CI): 1.003 (0.99 to 1.007) per 1 ppb increase). CONCLUSIONS: Our study shows that districts with higher air pollution (nitrogen oxides and multipollutants) have higher incidence rates of leukaemia in Tehran, Iran. This study warrants conducting further research with individual human data and better control of confounding

    Functional rewiring of G protein-coupled receptor signaling in human labo

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    Current strategies to manage preterm labor center around inhibition of uterine myometrial contractions, yet do not improve neonatal outcomes as they do not address activation of inflammation. Here, we identify that during human labor, activated oxytocin receptor (OTR) reprograms the prostaglandin E2 receptor, EP2, in the pregnant myometrium to suppress relaxatory/Gαs-cAMP signaling and promote pro-labor/inflammatory responses via altered coupling of EP2 from Gαq/11 to Gαi/o. The ability of EP2 to signal via Gαi/o is recapitulated with in vitro OT and only following OTR activation, suggesting direct EP2-OTR crosstalk. Super-resolution imaging with computational modeling reveals OT-dependent reorganization of EP2-OTR complexes to favor conformations for Gαi over Gαs activation. A selective EP2 ligand, PGN9856i, activates the relaxatory/Gαs-cAMP pathway but not the pro-labor/inflammatory responses in term-pregnant myometrium, even following OT. Our study reveals a mechanism, and provides a potential therapeutic solution, whereby EP2-OTR functional associations could be exploited to delay preterm labor
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