72 research outputs found

    “Do the editors-in-chief of Iranian medical journals have a good Knowledge, attitude and practice of plagiarism?”

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    Plagiarism is one of the misconducts which are specifically observed in scientific journals. It is important to prevent and reduce it in scientific communities. The chief editors of journals can play an effective role in this regard. Therefore, this study aims to determine the knowledge, attitude, and the practice (KAP) of the chief editors of scholarly journals in Universities of Iran about plagiarism. The data for this descriptive survey were collected through a researcher-made questionnaire which was developed and validated in three sections of knowledge, attitude, and practice. The statistical population of the study included all the chief editors of scholarly journals in Universities of Medical Sciences in Tehran. The scores of the editors were calculated separately in each section. The data collection procedure was followed either by email or in-person. The collected data were analyzed through SPSS. The chief editors’ score is %88.8 in the section of “knowledge of plagiarism” which represents a high score. The chief editors’ “attitude toward plagiarism” indicates a high level (%61.3), which represents a negative attitude of plagiarism, and their “practice” is also at a mid-level approaching towards high level. In general, the knowledge, attitude, and practice of chief editors about plagiarism are in a better status comparing to similar studies. However, it is expected that the editors in chief achieve a more favorable level in this regard

    The Effect of Cognitive-Behavioral Counseling on Maternal-Fetal Attachment among Pregnant Women with Unwanted Pregnancy: A Randomized Clinical Trial

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    Background: Unwanted pregnancy is an event bringing about adverse effects on the mother, the baby and, ultimately, on the whole family. The establishment and enhancement of maternal-fetal attachment play a role in the promotion of emotional communication between the mother and the child in the future. This study aimed at investigating the effect of cognitive-behavioral counseling on maternal-fetal attachment among pregnant women with unwanted pregnancy. Methods: In this randomized clinical trial, 60 eligible pregnant women with unwanted pregnancy and gestational age of 22-28 weeks who had referred to healthcare centers in Mashhad, a city in the northeast of Iran, were selected and they were through random block  assignment divided into two groups of counseling with the cognitive-behavioral approach (n = 30) and the control group (n = 30). In addition to the routine pregnancy care, the cognitive-behavioral counseling group received 4 group counseling sessions on a weekly basis, while the control group only received the routine pregnancy care from healthcare providers. Maternal-fetal attachment before and after intervention in the two groups was assessed through Cranley’s Maternal-Fetal Attachment Scale. Comparison of mean scores within and between the two groups was performed using SPSS 21 through independent and paired t-tests. Results:  At the end of the study and after the intervention, the mean scores of maternal-fetal attachment in the intervention and control groups were  94.06±11.73 and 80.16 ± 10.09, respectively, and the difference between the groups was significant. Although the difference between the mean scores of each group at the beginning and the end of the study was significant, this difference between the two groups was also noticeable (21.56 ± 12.16 versus 7.40 ± 12.39) and statistically significant . Conclusion: Cognitive-behavioral counseling can be effective in enhancing the maternal-fetal attachment in unwanted pregnancies; therefore, it is recommended to be integrated into pregnant women's healthcare programs

    The Effect of 8 Weeks Shallow and Deep Water Exercises on Static Balance and Dynamic Balance of Elderly Women

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    سابقه و هدف: سالمندی پدیده‌ای بیولوژیکی است که در نحوه‌ی زیست‌ارگانیزم و وضعیت روانی، اجتماعی فرد در طول زمان ظاهر می‌شود؛ لذا توجه به مسائل و نیازهای این مرحله از زندگی، یک ضرورت اجتماعی است. هدف از تحقیق حاضر تأثیر 8 هفته تمرین درمانی در آب در دو عمق مختلف بر تعادل ایستا و پویا در زنان سالمند بود. روش کار: روش انجام تحقیق نیمه تجربی بود. از این رو از بین زنان سالمند منطقه 1 تهران 45 نفر انتخاب شدند، که پس از گرفتن پیش‌­آزمون در متغیرهای تعادل ایستا و تعادل پویا افراد به صورت تصادفی به سه گروه تمرینات در قسمت عمیق (15 نفر)، تمرینات در قسمت کم‌­عمق (15 نفر) و یک گروه کنترل (15 نفر) تقسیم شدند. بعد از تقسیم افراد در گروه­‌های مربوطه، افراد شرکت‌­کننده در گروه‌­های تجربی به مدت 8 هفته به انجام تمرینات مربوطه پرداخته و در انتها دوباره از همه افراد پس­‌آزمون به عمل آمد. داده­‌های پژوهش به وسیله آزمون t زوجی و آزمون تحلیل کوواریانس مورد تجزیه و تحلیل آماری قرار گرفت. یافته­‌ها: نتایج تحقیق نشان داد پس از انجام مداخلات تمرین درمانی در آب، تعادل ایستا و پویا در دو گروه مداخله‌ای بهبود معنی­‌داری ایجاد شد. اما هیچگونه تفاوت معنی‌­داری در تعادل ایستا و پویا گروه کنترل مشاهده نشد. یافته‌­های تحقیق حاضر همچنین نشان داد که بین دو گروه تمرینات درمانی در آب عمیق و کم‌عمق، تفاوت معنی‌­داری در تعادل ایستا و پویا وجود ندارد و هر دو گروه به یک اندازه باعث بهبود تعادل ایستا و پویا در زنان سالمند شدند. نتیجه‌­گیری: با توجه به نتایج به دست آمده، می‌­توان تمرین درمانی در آب را به عنوان یکی از روش­های بهبود در تعادل ایستا و پویا در افراد سالمند در نظر گرفت.Background and aim: Aging is a biological phenomenon that manifests in the way of organism lives and its psychological, social status over time; therefore, paying attention to the needs of this stage of life is a social necessity. The goal of this research was to evaluate the effect of the 8-week exercise therapy in water in two different depths on static and dynamic balance in elderly women. Methods: The research was semi-experimental. Forty-five elderly women were selected from district 1 of Tehran, who after taking a pre-test in static and dynamic balance variables were randomly divided into three groups of exercises in the deep part (N=15), exercises in the shallow part (N=15), and a control group (N=15). After dividing the subjects into relevant groups, the participants performed the relevant exercises for 8 weeks, and at the end, all subjects underwent post-test experiments. The research data were statistically analyzed by the paired (t) test and the covariance analysis test. Results: The results showed that after doing exercise therapy interventions in water, there was a significant improvement in static and dynamic balance in the two intervention groups in comparison to the control group (P<0.05). Also, there was no significant difference in the static and dynamic balance between the two exercise therapies in deep and shallow water (P>0.05), and both groups equally improved static and dynamic balance in elderly women. Conclusion: According to the obtained results, exercise therapy in water can be considered as one of the methods to improve static and dynamic balance in the elderly

    The Role of Employee's Training on Implementation of Lifestyle in Organizations

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    Human resource is one of the most important enterprise resources. If they are trained and capable, they can make organizations dynamic and provide diverse and frequent resources for their organizations.  Added value, resulted from knowledge and intellectual creation of human resources, is considered as an effective factor to foster community goals in various fields and in particular “lifestyle”. It is obvious that changes in knowledge lead to changes in business practices and social and personal behavior in the workplace. In this cycle, the continuation of life culture in the workplace depends on lifestyle and culture training in organizations. The objectives of Islamic Republic of Iran are to achieve real peace, practical behavior along with Islamic life and pure life in order to institutionalize and create necessary fields for the establishment of desire system of lifestyle. Such objectives are based on principles of rationality (rationalism), Islamic ethics, and respecting rights which double the importance and necessity to provide appropriate trainings and human resource-improvement- based effectiveness as well as implementation method of goals including consumption pattern reforming and savings, economy, housing, in particular in organizations. Since public-sector organizations are some of the most important executive sections to implement lifestyle goals in Iran, this paper intends to study the relationship and the role of employee's training in implementation of life-style goals in organizations

    Effects of Common Fig ( Ficus carica

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    Formaldehyde (FA) is the leading cause of cellular injury and oxidative damage in testis that is one of the main infertility causes. There has been an increasing evidence of herbal remedies use in male infertility treatment. This assay examines the role of Ficus carica (Fc) leaf extracts in sperm parameters and testis of mice intoxicated with FA. Twenty-five adult male mice were randomly divided into control; sham; FA-treated (10 mg/kg twice per day); Fc-treated (200 mg/kg); and FA + Fc-treated groups. Cauda epididymal spermatozoa were analyzed for viability, count, and motility. Testes were weighed and gonadosomatic index (GSI) was calculated. Also, histoarchitecture of seminiferous tubules was assessed in the Haematoxylin and Eosin stained paraffin sections. The findings showed that FA significantly decreased GSI and increased percentage of immotile sperm compared with control group. Disorganized and vacuolated seminiferous epithelium, spermatogenic arrest, and lumen filled with immature germ cells were also observed in the testes. However, Fc leaf extracts improved sperm count, nonprogressive motility of spermatozoa, and GSI in FA-treated testes. Moreover, seminiferous tubule with spermatogenic arrest was rarely seen, indicating that Fc has the positive effects on testis and epididymal sperm parameters exposed with FA

    Arbutin attenuates behavioral impairment and oxidative stress in an animal model of Parkinson's disease

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    Objective: Arbutin has been shown to have antioxidant and free-radical scavenging properties. The aim of this study was to investigate the effects of arbutin administration on behavioral impairment, and oxidative and nitrosative stress in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)-induced animal model of Parkinson’s disease (PD). Materials and Methods: PD model was developed by 4 intraperitoneal (i.p.) injections of MPTP (20 mg/kg) with 2 h intervals in mice. Experimental groups received once daily injection of saline as vehicle (control group) or arbutin (50 mg/kg, i.p.) one week before MPTP injections and this protocol was continued seven days post lesion. Behavioral deficits were evaluated using locomotion test, hanging wire test and forepaw stride length. Parameters indicating the oxidation levels including lipid peroxidation marker (TBARS), nitrite, protein carbonyl levels and antioxidant activity including ferric reducing antioxidant power (FRAP) were assessed in serum and midbrain samples. Results: Treatment with arbutin improved motor functions in an MPTP-induced PD model compared to control group (

    Global, regional, and national burden of Alzheimer's disease and other dementias, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016.

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    BACKGROUND: The number of individuals living with dementia is increasing, negatively affecting families, communities, and health-care systems around the world. A successful response to these challenges requires an accurate understanding of the dementia disease burden. We aimed to present the first detailed analysis of the global prevalence, mortality, and overall burden of dementia as captured by the Global Burden of Diseases, Injuries, and Risk Factors (GBD) Study 2016, and highlight the most important messages for clinicians and neurologists. METHODS: GBD 2016 obtained data on dementia from vital registration systems, published scientific literature and surveys, and data from health-service encounters on deaths, excess mortality, prevalence, and incidence from 195 countries and territories from 1990 to 2016, through systematic review and additional data-seeking efforts. To correct for differences in cause of death coding across time and locations, we modelled mortality due to dementia using prevalence data and estimates of excess mortality derived from countries that were most likely to code deaths to dementia relative to prevalence. Data were analysed by standardised methods to estimate deaths, prevalence, years of life lost (YLLs), years of life lived with disability (YLDs), and disability-adjusted life-years (DALYs; computed as the sum of YLLs and YLDs), and the fractions of these metrics that were attributable to four risk factors that met GBD criteria for assessment (high body-mass index [BMI], high fasting plasma glucose, smoking, and a diet high in sugar-sweetened beverages). FINDINGS: In 2016, the global number of individuals who lived with dementia was 43·8 million (95% uncertainty interval [UI] 37·8-51·0), increased from 20.2 million (17·4-23·5) in 1990. This increase of 117% (95% UI 114-121) contrasted with a minor increase in age-standardised prevalence of 1·7% (1·0-2·4), from 701 cases (95% UI 602-815) per 100 000 population in 1990 to 712 cases (614-828) per 100 000 population in 2016. More women than men had dementia in 2016 (27·0 million, 95% UI 23·3-31·4, vs 16.8 million, 14.4-19.6), and dementia was the fifth leading cause of death globally, accounting for 2·4 million (95% UI 2·1-2·8) deaths. Overall, 28·8 million (95% UI 24·5-34·0) DALYs were attributed to dementia; 6·4 million (95% UI 3·4-10·5) of these could be attributed to the modifiable GBD risk factors of high BMI, high fasting plasma glucose, smoking, and a high intake of sugar-sweetened beverages. INTERPRETATION: The global number of people living with dementia more than doubled from 1990 to 2016, mainly due to increases in population ageing and growth. Although differences in coding for causes of death and the heterogeneity in case-ascertainment methods constitute major challenges to the estimation of the burden of dementia, future analyses should improve on the methods for the correction of these biases. Until breakthroughs are made in prevention or curative treatment, dementia will constitute an increasing challenge to health-care systems worldwide

    Examining the generalizability of research findings from archival data

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    This initiative examined systematically the extent to which a large set of archival research findings generalizes across contexts. We repeated the key analyses for 29 original strategic management effects in the same context (direct reproduction) as well as in 52 novel time periods and geographies; 45% of the reproductions returned results matching the original reports together with 55% of tests in different spans of years and 40% of tests in novel geographies. Some original findings were associated with multiple new tests. Reproducibility was the best predictor of generalizability—for the findings that proved directly reproducible, 84% emerged in other available time periods and 57% emerged in other geographies. Overall, only limited empirical evidence emerged for context sensitivity. In a forecasting survey, independent scientists were able to anticipate which effects would find support in tests in new samples

    Population and fertility by age and sex for 195 countries and territories, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017

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    Background: Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates of population and fertility, although useful, have not been produced with transparent and replicable methods and do not use standardised estimates of mortality. We present single-calendar year and single-year of age estimates of fertility and population by sex with standardised and replicable methods. Methods: We estimated population in 195 locations by single year of age and single calendar year from 1950 to 2017 with standardised and replicable methods. We based the estimates on the demographic balancing equation, with inputs of fertility, mortality, population, and migration data. Fertility data came from 7817 location-years of vital registration data, 429 surveys reporting complete birth histories, and 977 surveys and censuses reporting summary birth histories. We estimated age-specific fertility rates (ASFRs; the annual number of livebirths to women of a specified age group per 1000 women in that age group) by use of spatiotemporal Gaussian process regression and used the ASFRs to estimate total fertility rates (TFRs; the average number of children a woman would bear if she survived through the end of the reproductive age span [age 10–54 years] and experienced at each age a particular set of ASFRs observed in the year of interest). Because of sparse data, fertility at ages 10–14 years and 50–54 years was estimated from data on fertility in women aged 15–19 years and 45–49 years, through use of linear regression. Age-specific mortality data came from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017 estimates. Data on population came from 1257 censuses and 761 population registry location-years and were adjusted for underenumeration and age misreporting with standard demographic methods. Migration was estimated with the GBD Bayesian demographic balancing model, after incorporating information about refugee migration into the model prior. Final population estimates used the cohort-component method of population projection, with inputs of fertility, mortality, and migration data. Population uncertainty was estimated by use of out-of-sample predictive validity testing. With these data, we estimated the trends in population by age and sex and in fertility by age between 1950 and 2017 in 195 countries and territories. Findings: From 1950 to 2017, TFRs decreased by 49\ub74% (95% uncertainty interval [UI] 46\ub74–52\ub70). The TFR decreased from 4\ub77 livebirths (4\ub75–4\ub79) to 2\ub74 livebirths (2\ub72–2\ub75), and the ASFR of mothers aged 10–19 years decreased from 37 livebirths (34–40) to 22 livebirths (19–24) per 1000 women. Despite reductions in the TFR, the global population has been increasing by an average of 83\ub78 million people per year since 1985. The global population increased by 197\ub72% (193\ub73–200\ub78) since 1950, from 2\ub76 billion (2\ub75–2\ub76) to 7\ub76 billion (7\ub74–7\ub79) people in 2017; much of this increase was in the proportion of the global population in south Asia and sub-Saharan Africa. The global annual rate of population growth increased between 1950 and 1964, when it peaked at 2\ub70%; this rate then remained nearly constant until 1970 and then decreased to 1\ub71% in 2017. Population growth rates in the southeast Asia, east Asia, and Oceania GBD super-region decreased from 2\ub75% in 1963 to 0\ub77% in 2017, whereas in sub-Saharan Africa, population growth rates were almost at the highest reported levels ever in 2017, when they were at 2\ub77%. The global average age increased from 26\ub76 years in 1950 to 32\ub71 years in 2017, and the proportion of the population that is of working age (age 15–64 years) increased from 59\ub79% to 65\ub73%. At the national level, the TFR decreased in all countries and territories between 1950 and 2017; in 2017, TFRs ranged from a low of 1\ub70 livebirths (95% UI 0\ub79–1\ub72) in Cyprus to a high of 7\ub71 livebirths (6\ub78–7\ub74) in Niger. The TFR under age 25 years (TFU25; number of livebirths expected by age 25 years for a hypothetical woman who survived the age group and was exposed to current ASFRs) in 2017 ranged from 0\ub708 livebirths (0\ub707–0\ub709) in South Korea to 2\ub74 livebirths (2\ub72–2\ub76) in Niger, and the TFR over age 30 years (TFO30; number of livebirths expected for a hypothetical woman ageing from 30 to 54 years who survived the age group and was exposed to current ASFRs) ranged from a low of 0\ub73 livebirths (0\ub73–0\ub74) in Puerto Rico to a high of 3\ub71 livebirths (3\ub70–3\ub72) in Niger. TFO30 was higher than TFU25 in 145 countries and territories in 2017. 33 countries had a negative population growth rate from 2010 to 2017, most of which were located in central, eastern, and western Europe, whereas population growth rates of more than 2\ub70% were seen in 33 of 46 countries in sub-Saharan Africa. In 2017, less than 65% of the national population was of working age in 12 of 34 high-income countries, and less than 50% of the national population was of working age in Mali, Chad, and Niger. Interpretation: Population trends create demographic dividends and headwinds (ie, economic benefits and detriments) that affect national economies and determine national planning needs. Although TFRs are decreasing, the global population continues to grow as mortality declines, with diverse patterns at the national level and across age groups. To our knowledge, this is the first study to provide transparent and replicable estimates of population and fertility, which can be used to inform decision making and to monitor progress. Funding: Bill & Melinda Gates Foundation

    Population and fertility by age and sex for 195 countries and territories, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017

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    Background: Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates of population and fertility, although useful, have not been produced with transparent and replicable methods and do not use standardised estimates of mortality. We present single-calendar year and single-year of age estimates of fertility and population by sex with standardised and replicable methods. Methods: We estimated population in 195 locations by single year of age and single calendar year from 1950 to 2017 with standardised and replicable methods. We based the estimates on the demographic balancing equation, with inputs of fertility, mortality, population, and migration data. Fertility data came from 7817 location-years of vital registration data, 429 surveys reporting complete birth histories, and 977 surveys and censuses reporting summary birth histories. We estimated age-specific fertility rates (ASFRs; the annual number of livebirths to women of a specified age group per 1000 women in that age group) by use of spatiotemporal Gaussian process regression and used the ASFRs to estimate total fertility rates (TFRs; the average number of children a woman would bear if she survived through the end of the reproductive age span [age 10–54 years] and experienced at each age a particular set of ASFRs observed in the year of interest). Because of sparse data, fertility at ages 10–14 years and 50–54 years was estimated from data on fertility in women aged 15–19 years and 45–49 years, through use of linear regression. Age-specific mortality data came from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017 estimates. Data on population came from 1257 censuses and 761 population registry location-years and were adjusted for underenumeration and age misreporting with standard demographic methods. Migration was estimated with the GBD Bayesian demographic balancing model, after incorporating information about refugee migration into the model prior. Final population estimates used the cohort-component method of population projection, with inputs of fertility, mortality, and migration data. Population uncertainty was estimated by use of out-of-sample predictive validity testing. With these data, we estimated the trends in population by age and sex and in fertility by age between 1950 and 2017 in 195 countries and territories. Findings: From 1950 to 2017, TFRs decreased by 49·4% (95% uncertainty interval [UI] 46·4–52·0). The TFR decreased from 4·7 livebirths (4·5–4·9) to 2·4 livebirths (2·2–2·5), and the ASFR of mothers aged 10–19 years decreased from 37 livebirths (34–40) to 22 livebirths (19–24) per 1000 women. Despite reductions in the TFR, the global population has been increasing by an average of 83·8 million people per year since 1985. The global population increased by 197·2% (193·3–200·8) since 1950, from 2·6 billion (2·5–2·6) to 7·6 billion (7·4–7·9) people in 2017; much of this increase was in the proportion of the global population in south Asia and sub-Saharan Africa. The global annual rate of population growth increased between 1950 and 1964, when it peaked at 2·0%; this rate then remained nearly constant until 1970 and then decreased to 1·1% in 2017. Population growth rates in the southeast Asia, east Asia, and Oceania GBD super-region decreased from 2·5% in 1963 to 0·7% in 2017, whereas in sub-Saharan Africa, population growth rates were almost at the highest reported levels ever in 2017, when they were at 2·7%. The global average age increased from 26·6 years in 1950 to 32·1 years in 2017, and the proportion of the population that is of working age (age 15–64 years) increased from 59·9% to 65·3%. At the national level, the TFR decreased in all countries and territories between 1950 and 2017; in 2017, TFRs ranged from a low of 1·0 livebirths (95% UI 0·9–1·2) in Cyprus to a high of 7·1 livebirths (6·8–7·4) in Niger. The TFR under age 25 years (TFU25; number of livebirths expected by age 25 years for a hypothetical woman who survived the age group and was exposed to current ASFRs) in 2017 ranged from 0·08 livebirths (0·07–0·09) in South Korea to 2·4 livebirths (2·2–2·6) in Niger, and the TFR over age 30 years (TFO30; number of livebirths expected for a hypothetical woman ageing from 30 to 54 years who survived the age group and was exposed to current ASFRs) ranged from a low of 0·3 livebirths (0·3–0·4) in Puerto Rico to a high of 3·1 livebirths (3·0–3·2) in Niger. TFO30 was higher than TFU25 in 145 countries and territories in 2017. 33 countries had a negative population growth rate from 2010 to 2017, most of which were located in central, eastern, and western Europe, whereas population growth rates of more than 2·0% were seen in 33 of 46 countries in sub-Saharan Africa. In 2017, less than 65% of the national population was of working age in 12 of 34 high-income countries, and less than 50% of the national population was of working age in Mali, Chad, and Niger. Interpretation: Population trends create demographic dividends and headwinds (ie, economic benefits and detriments) that affect national economies and determine national planning needs. Although TFRs are decreasing, the global population continues to grow as mortality declines, with diverse patterns at the national level and across age groups. To our knowledge, this is the first study to provide transparent and replicable estimates of population and fertility, which can be used to inform decision making and to monitor progress
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