ali mehri
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زمینه و هدف
بیماری ایدز یک معضل بهداشت عمومی می باشد که برای پیشگیری آن انجام آزمون غربالگری پیشنهاد می شود. این مطالعه با هدف تعیین تاثیر مداخله آموزشی مبتنی بر مدل فرایند اتخاذ احتیاط جهت انجام آزمون غربالگری HIV انجام شد.
مواد و روش هامطالعه نیمه تجربی بر روی 120 نفر از دانشجویان سال سوم و چهارم رشته ی پرستاری شهر سبزوار سال 2019 با روش نمونه گیری تصادفی انجام شد. ابزار گردآوری اطلاعات، پرسشنامه ی محقق ساخته با روایی و پایایی مناسب شامل اطلاعات دموگرافیک، آگاهی و سازه های مدل فرایند اتخاذ احتیاط بود. جمع آوری اطلاعات قبل، دو هفته و دو ماه بعد از مداخله در گروه های مداخله و کنترل انجام شد. داده ها با استفاده از نرم افزار spss19 و آزمون های کای دو، تی مستقل، GEE و رگرسیون خطی چند متغیره تجزیه و تحلیل شد.
یافته هادر مطالعه ی حاضر 21/7، 35، 28/3، و 15 درصد دانشجویان به ترتیب در مرحله ی2، 3، 4و 5 بودند. بعد از مداخله 55 درصد از افراد در گروه مداخله به مرحله ی 6 (انجام رفتار) پیشرفت نمودند. مداخله ی آموزشی، 4% آگاهی، 6% حساسیت، 16% منافع درک شده و خودکارآمدی را افزایش داد. همچنین رفتار گروه مداخله را نسبت به کنترل بیش از 3 برابر بهبود بخشید (0/028=p).
نتیجه گیرینتایج مطالعه حاکی از آن بود که مداخله ی آموزشی به دانشجویان علی رغم این که در مراحل مختلف مدل جای گرفته بودند شانس اینکه به مرحله نزدیک تر به انجام رفتار قرار بگیرند را افزایش داد. بنابراین طراحی مداخلات آموزشی در پیشبرد گروه هدف از مراحل عدم درگیری یا تصمیم گیری برای انجام آزمایش به سمت انجام آزمایش اچ آی وی پیشنهاد می شود.
کلید واژگان: آزمون غربالگری اچ آی وی, مدل فرایند اتخاذ احتیاط, دانشجویان پرستاریBackground and ObjectivesAIDS is a public health problem for which screening tests are recommended for prevention. This study aimed to determine the impact of an educational intervention based on the precaution adoption process model on HIV screening.
Materials and MethodsA semi-experimental study was conducted on 120 third and fourth-year nursing students in Sabzevar city in 2019 using random sampling. Data collection tools, researcher-made questioner with appropriate validity and reliability, included demographic information, awareness, and constructs of the precaution adoption process model. Data was collected before, two weeks, and two months after the intervention in intervention and control groups. Data was analyzed using SPSS19 software and tests including Chi-square, independent t-test, GEE, and multiple linear regression.
ResultsIn the present study, 21.7%, 35%, 28.3%, and 15% of students were in stages 2, 3, 4, and 5, respectively. After the intervention, 55% of individuals in the intervention group progressed to stage 6 (action). The educational intervention increased awareness by 4%, sensitivity by 6%, perceived benefits by 16%, and self-efficacy. Additionally, the behavior of the intervention group improved more than three times compared to the control group (P=0.028).
ConclusionThe study results indicated that the educational intervention to students, despite being implemented at various stages of the model, increased the likelihood of them moving closer to the stage of performing the behavior. Therefore, designing educational interventions to promote the target group from stages of non-engagement or decision-making to HIV testing is recommended.
Keywords: HIV Screening Test, Precaution Adoption Process Model, Nursing Students -
Introduction
Given the limited use of the 6-minute walking distance (6MWD) test as a replacement for standard tests in thoracic surgery, insufficient research exists on the prognostic value of this test, and further studies are necessary. This study aimed to investigate the correlation between pulmonary function tests (PFT) and the 6MWD test in lung resection patients.
MethodsThis cross-sectional study, conducted in 2021-2022, involved lung resection candidates referred to the thoracic surgery clinic. Demographic data, including age, sex, and body mass index (BMI), were collected, and pulmonary function tests and 6MWD tests were conducted for all patients. The sample size of the study was 31, and all patients received routine treatment during hospitalization.
ResultsOf the 31 subjects included in the study, 16 were male (51.6%) and 15 (48.4%) were female. The mean age of the patients was 33.45±13.78 years. The median forced expiratory volume in one second (FEV1) and the mean ratio of FEV1/forced vital capacity (FVC) were 2.16 (1.49–2.85) liters and 81.80±7.34%, respectively. No significant correlation was found between the results of 6MWD and PFT, including FVC, FEV1, and FEV1/FVC ratio (P>0.05).
ConclusionThe 6MWD test is a more economical and easily accessible test than PFT. However, this study found no correlation between the 6MWD test and spirometry parameters. Therefore, we suggest that surgeons should not rely on the 6MWD test as a predictive value for assessing respiratory function in lung resection candidates. The study’s findings have important implications for clinical practice.
Keywords: Thoracic Surgery, Spirometry, Lung Resection, 6MWD, PFT -
International Journal Of Nonlinear Analysis And Applications, Volume:15 Issue: 12, Dec 2024, PP 157 -172
The very important role of electronic services and online services in every society is not hidden from anyone, among them, what is important is the quality of these services. Electronic service quality refers to how effectively and efficiently a particular Internet banking service can facilitate online transactions. Therefore, in this research, the design of the quality improvement model of banking technological services in Iran has been discussed. The current research is based on the fundamental goal and based on the method of data collection, survey-cross-sectional. Data collection tools were library studies, interviews, structural-interpretive modelling and researcher-made questionnaires. In the qualitative part of the article, 11 banking experts were purposefully selected. In the quantitative part, 384 questionnaires were distributed among the customers of Sanat and Madan Bank in the form of simple stratified sampling. The analysis of data in the qualitative part was through thematic analysis and in the quantitative part interpretive structural modelling, self-interaction structural matrix, achievement matrix, an adaptation of the achievement matrix, determination of relationships and levelling of indicators as well as structural equations. Eight main themes of the qualitative section: technological banking management, technological banking marketing, system and electronic service quality, improving the quality of technological banking services, technological hardware and software infrastructure, customer experience management, organizational culture and risk management were identified. The quantitative part showed the technological software and hardware infrastructure on technological banking management, technological banking management on risk management and organizational culture, risk management on technological banking marketing and customer experience management, organizational culture on technological banking marketing and customer experience management, and technological banking marketing. On the systemic and electronic quality of services, customer experience management on the systemic and electronic quality of services, the systemic and electronic quality of services have a positive and significant effect on improving the quality of banking technological services.
Keywords: Information Technology, Electronic Banking, Digital Banking, Service Quality, Structural Equations -
The effectiveness of immunotherapy for most cancer patients remains low, with approximately 10–30% of those treated surviving. Thus, much effort is being put into finding new ways to improve immune checkpoint therapy. Our review concludes that the inhibition of proprotein convertase subtilisin/Kexin type 9 (PCSK9), which plays a critical role in regulating cholesterol metabolism, can cause T cells to move toward tumors, with increased sensitivity to immune checkpoint therapies.We searched PubMed, NCBI, Scopus, and Google Scholar for the published articles without limitations on publication dates. We used the following terms: “PCSK9”, “Cancer”, “Immune Checkpoint”, and “Cancer Prognosis” in the title and/or abstract. Our search initially revealed 600 records on the subject and stored them in the used databases under EndNote X8 management software. We selected about 161 articles that were carefully read and among them, 76 were included in our research.We concluded that PCSK9 reduces the number of LDL receptors (LDL-R) on the cell surface, which is linked to its ability to regulate cholesterol levels in the body. Also, we discuss how suppressing PCSK9 leads to the MHC-1 accumulation on the surface of cancer cells, which results in T lymphocyte invasion. Finally, we believe that inhibiting PCSK9 may be an effective strategy for improving cancer immunotherapy.
Keywords: PCSK9, Immunotherapy, Cancer, Immune checkpoint -
مقدمه
با وجود این که سرطان پستان یکی از بزرگترین تهدید کننده های سلامت زنان است با این حال انجام رفتارهای تشخیص زودرس به خصوص در جمعیت های آسیب پذیر چندان مطلوب نیست، این مطالعه با هدف تعیین تاثیر مداخله آموزشی بر ارتقاء رفتارهای تشخیص زودرس سرطان پستان در زنان میانسال ساکن در حاشیه شهر مشهد انجام شده است.
مواد و روش کاردر این مطالعه نیمه تجربی در سال 1397 زنان مراجعه کننده به مراکز خدمات جامع سلامت حاشیه شهر مشهد به صورت تصادفی انتخاب و به دو گروه مداخله (60 نفر) و کنترل (60 نفر) تقسیم شدند. مداخله آموزشی طی 4 جلسه بر اساس سازه های مدل PEN-3 صورت پذیرفت، پرسشنامه محقق ساخته بلافاصله و 2 ماه بعد از مداخله آموزشی توسط گروه هدف تکمیل شد، داده ها با مداخله های آماری در نرم افزار SPSS 19 مورد تجزیه و تحلیل قرار گرفت.
یافته هامیانگین سازه های عوامل ادراکی، قادر کننده و تقویت کننده به طور معناداری در زنان دارای تحصیلات بالاتر بیشتر بود. با وجود عدم اختلاف آماری معنادار بین دو گروه قبل از انجام مداخله آموزشی اما بلافاصله و دو ماه بعد از انجام مداخله، میانگین نمرات سازه های مدل و رفتارهای تشخیص زودرس در گروه مداخله به طور معناداری بیشتر از گروه کنترل بود.
نتیجه گیریبا توجه به تاثیر مداخله آموزشی بر اساس سازه های مدل PEN-3 بر رفتارهای تشخیص زودرس در زنان حاشیه نشین، به نظر می رسد در مداخلات آموزشی علاوه بر فرد، بستگان و حامیان موثر در بکارگیری رفتار سالم نیز باید مورد توجه قرار گیرند و از ظرفیت باورهای مثبت موجود در خصوص رفتار سالم برای افزایش انگیزش افراد در بکارگیری رفتارهای تشخیص زودرس بخصوص در جمعیت های آسیب پذیر بهره گرفت.
کلید واژگان: مدل pen-3, تشخیص زودرس, زنان, آموزش, سرطان پستانPayesh, Volume:22 Issue: 4, 2023, PP 433 -441Objective(s)Although breast cancer is one of the biggest threats to women's health, preventive behaviors among women are not desirable, especially in vulnerable populations. This study aimed to assess the effect of an educational intervention on promoting breast cancer preventive behaviors in middle-aged women. It was performed on the outskirts of Mashhad, Iran
MethodsIn this quasi-experimental study in 2017, women referring to comprehensive health service centers in the suburbs of Mashhad were randomly selected and divided into intervention (n = 60) and control (n = 60) groups. The educational intervention was performed in 4 sessions based on the structures of PEN-3 model. A self-designed questionnaire was completed immediately and two months after the educational intervention by the target group.
ResultsThe mean of constructs of perceptual, empowering, and reinforcing factors were significantly higher in women with higher education. Despite the lack of statistically significant differences between the two groups before the educational intervention, but immediately and two months after the intervention, the mean scores of PEN-3 model constructs and preventive behaviors in the intervention group were significantly higher than the control group (P<0.05).
ConclusionThe findings showed that educational intervention based on PEN-3 model constructs was effective on improving preventive behaviors among marginalized women.
Keywords: PEN-3, Early diagnosis, women, Education, Breast Neoplasms -
Photovoltaic (PV) systems are susceptible to lightning strikes. In this paper, a new accurate and efficient electromagnetic transient (EMT) model of grounding systems (GSs) is presented. The proposed approach considers the impact of frequency-dependent (FD) modeling of GSs on the overvoltage values in PV systems in time domain analysis. The proposed wide-band model is significantly accurate for various types of GSs (single-port and multi-port GSs) and models the frequency dependence of the soil electrical parameters based on experimental data (conductivity and relative permittivity). The proposed model can be implemented in time domain without any GS impedance matrix inversion, so it has less complexity compared to previous approaches. Most of the existing studies suffer from low accuracy in the PV system modeling during lightning transients because of neglecting the effects of the mounting system, metal frame, and mutual coupling, which are considered in the present work. The results demonstrate that the PV factors and frequency dependence of soil have a great effect on the PV system overvoltages. The proposed model offers improved accuracy by covering the entire frequency range of interest. Additionally, it takes into account the mounting system, metal frame, and mutual coupling in EMT analysis.Keywords: Grounding systems, Photovoltaic systems, soil electrical parameters, wide-band modeling, partial element equivalent-circuit method
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Background and aims
The aim of this study was to investigate the combined effect of interval training and resveratrol consumption on the regulatory and executive factors of hepatocyte apoptosis in male rats with diabetes.
MethodsFrothy-two male Wistar rats were randomly divided into healthy control, diabetic, saline diabetic, resveratrol supplement, intermittent exercise, and resveratrol+intermittent exercise groups. The interval training program consisted of 8 weeks of training with an intensity of 50%-70% of the maximum oxygen consumption. Resveratrol was injected in two training groups with resveratrol supplement and resveratrol+supplement at a dose of 20 mg.
ResultsThe concentrations of caspase-3 and BAX in diabetic saline and diabetic groups were significantly higher than in control groups (P=0.001). On the other hand, Bcl-2 (B-cell lymphoma 2) levels in diabetic saline and diabetic were significantly lower than in the control groups (P=0.001). The concentration of the BAX/Bcl-2 ratio in diabetic and diabetic saline was significantly higher compared to control groups (P=0.001) The effect of interval training, administration of resveratrol alone, or especially with interval training caused a significant decrease in the concentration of BAX and caspase-3 (P=0.001), a significant increase in the mean Bcl-2 concentration (P=0.001), and a significant decrease in the mean BAX/Bcl-2 ratio (P=0.001) in male rats with diabetes compared with the diabetic and diabetic groups.
ConclusionThe combined effect of eight-week resveratrol supplementation and interval training decreased apoptosis markers, while it increased the concentration of Bcl-2 in male rats with type 2 diabetes.
Keywords: Diabetes, Interval training, Resveratrol, Apoptosis -
Background
Traffic accidents are one of the biggest public health challenges. Considering the role of safe behaviors in reducing traffic accidents, the present study was conducted to determine the effect of educational intervention based on protection motivation theory on promoting safe traffic behaviors in male students.
MethodsIn this study, male students were randomly divided into two control group (n = 70) and an intervention group (n = 70). After confirming the validity and reliability, a researcher-made questionnaire consisting of 63 questions based on the theory of protection motivation was distributed among the students. The students in the intervention group received training for 90 minutes for four weeks. The data were collected in the form of self-report immediately and six months after the intervention and analyzed by the statistical tests of correlation, Chi-square, multiple regression, repeated measures ANOVA, and t tests using SPSS version 19.
ResultsThe structures of protection motivation theory predicted 21% of the variance of safe behaviors. Immediately after the educational intervention, except for the fear construct, the mean scores of other theoretical constructs and students’ safe behaviors were significant between the two groups, but the mean scores were not significant six months after the educational intervention except for perceived selfefficacy, perceived response efficacy, protection motivation of other studied theoretical constructs, and safe behaviors (P > 0.05).
ConclusionConsidering the influence of several components on the formation of safe traffic behavior, it seems that to promote safe behaviors of students, in addition to designing theory-based training programs, creating supportive infrastructures by policymakers and planners is essential for correct traffic behaviors.
Keywords: Education, Students, Behavior, Motivation, Traffic -
Background
Dynamic establishment and optimal continuity of the educational system is strongly influenced by the quality and quantity of planning. However, planning teaching and learning activities is the most important one. The aim of this study was to evaluate students’ satisfaction with the teaching assistant method and determine factors affecting it in Sabzevar University of Medical Sciences.
MethodIn this cross-sectional study, 49 undergraduate nursing (29 students) and public health (20 students) students with non-experience of teaching assistant method were selected through simple random sampling method. Data were collected with a modified questionnaire and its validity and reliability was measured.
ResultsThe mean score of satisfaction was 33.70±1.04 from 48 total scores. There was a significant relationship between gender and field of study variables with satisfaction variable (P < 0.05). Public health students and male students were more satisfied with the teaching assistant method. The mean scores of satisfactions in public health (mean score =36.30) and male students (mean score =35.50) were higher than nursing (mean score =31.17) and female students (mean score =32.59) respectively.
ConclusionEvaluation of the students' satisfaction showed that students' satisfaction with the teaching assistant method is higher than average and using this method can be effective in improving the education system.
Keywords: Teaching assistant, Personal satisfaction, Students -
Background
Intimate partner violence (IPV) is the most common type of domestic violence often used by men against their wives. Due to the destructive and widespread social and health consequences of IPV, the present study aimed to investigate the prevalence and related factors of IPV among married women in Garmsar, Iran.
MethodsUsing multi-stage clusters sampling method, this cross-sectional study included 400 married women in Garmsar, Iran. The data collection process was conducted during October and December 2019 using a researcher-made questionnaire. The content validity of the questionnaire was confirmed using content validity ratio (CVR) and content validity index (CVI) indicators (0.85 and 0.88, respectively). Also, the reliability was confirmed by examining the internal consistency and obtaining a score of 0.93 for Cronbach's alpha. Descriptive and analytical statistics were performed using t-test, analysis of variance (ANOVA), and Tukey’s post-hoc test.
ResultsMost participants were in the age range of 20-40 years (mean age: 34.9 years). The overall exposure of women to IPV was 56.11%. In addition, the most prevalent types of IPV included legal (24%), social (24%), financial (22%), verbal (16%), physical (13%), emotional (12%), and sexual (11%). The effective factors on the prevalence of IPV included number of children, education level, occupation, and age (P less than 0.05).
ConclusionsWe witnessed that women living in Garmsar faced different types of IPV and their overall exposure to this phenomenon was higher than the national and global average. To resolve the problem, the following measurements are recommended: a careful investigation of the reasons for the spread of IPV, implementing interventions based on reliable evidence, and serious cooperation of the experts and relevant governmental and non-governmental institutions, particularly citizens.
Keywords: Mental Health, Domestic violence, Intimate Partner Violence -
Background
Considering the influential role of teaching safe behaviors in preventing accidents and injuries, this study aims to determine the effect of educational intervention based on protection motivation theory (PMT) and information-motivation-behavioral skills (IMB) model on promoting safe motorcycle riding behaviors in male students at Sabzevar University.
MethodsThis quasi-experimental study was performed on 100 motorcyclist students at Sabzevar University selected using two-stage cluster sampling method in 2018. After confirming the validity and reliability of the instrument, the questionnaire was completed three times before, immediately, and two months after the educational intervention. The intervention group was held in 9 educational sessions for three weeks. The data were analyzed by SPSS18 software using t-test, chi-square, Fisher's exact test, and repeated measures tests.
ResultsThe mean scores of PMT and IMB and safe behaviors of students in the intervention group immediately and two months after the educational intervention compared to the control group showed a statistically significant increase (p<0.001). The mean scores of the studied constructs and safe behaviors in the intervention group had also a statistically significant change over time (p <0.05).
ConclusionThe results indicate the effect of educational intervention based on PMT and IMB on promoting safe behaviors in young students. Face-to-face education and virtual education based on a combination of health education theories can be used to effectively promote safe behaviors of motorcyclist students.
Keywords: Education, Motivation, Motorcycles, Behavior -
عوامل مرتبط با رفتارهای پیشگیری کننده از سرطان پستان در زنان میانسال: کاربردی از تئوری انگیزش محافظتمقدمه
انجام رفتارهای غربالگری در کنار رژیم غذایی سالم و فعالیت فیزیکی منظم، نقش به سزایی در کاهش میزان مرگ و میر ناشی از سرطان پستان دارد. این مطالعه با هدف تعیین عوامل مرتبط با رفتارهای پیشگیری کننده از سرطان پستان بر اساس تیوری انگیزش محافظت در زنان شهر نیشابور انجام شد.
روش بررسیدر این مطالعه به صورت مقطعی، تعداد 325 نفر از زنان 30 تا 69 ساله مراجعه کننده به مراکز خدمات جامع سلامت به روش نمونه گیری خوشه ای در سال 1397 مورد بررسی قرار گرفتند. ابزار گردآوری داده ها، پرسشنامه محقق ساخته بود که روایی آن از طریق روایی صوری، محتوا و سازه و پایایی آن از طریق آلفا کرونباخ (750/0= α) سنجیده شد و تجزیه و تحلیل داده ها در نرمافزار SPSS-19 با استفاده از آمار توصیفی و تحلیلی صورت گرفت.
یافته هابیش از نیمی از شرکت کنندگان (52%) تاکنون اصلا خودآزمایی پستان را انجام نداده بودند و 6/72% زنان جهت انجام معاینه بالینی پستان هرگز به مراکز سلامت مراجعه نکرده بودند، تنها 8/6% شرکت کنندگان فعالیت فیزیکی منظم داشتند. سازه های تیوری انگیزش محافظت به جز ترس، با رفتارهای پیشگیری کننده از سرطان پستان همبستگی داشت. سازه های پاداش درک شده، انگیزش محافظت، شدت درک شده و آگاهی پیشبینی کننده رفتار بودند و این متغیر ها در مجموع قادر به توضیح 4/15% از تغییرات رفتار بودند.
نتیجه گیریانجام برنامه ریزی های آموزشی تیوری محور در راستای اتخاذ استراتژی های پیشگیری کننده از سرطان پستان جهت ارتقاء توانمندی زنان در بکارگیری سبک زندگی سالم و رفتارهای غربالگری ضروری است.
کلید واژگان: تئوری انگیزش محافظت, پیشگیری, سرطان پستان, زنانIntroductionScreening behaviors along with a healthy lifestyle and regular physical activity play an essential role in reducing mortality from breast cancer. The present study aimed to determine the factors associated with breast cancer–preventive behaviors based on the theory of protection motivation in women in Neyshabur city.
MethodsIn this cross-sectional study, 325 women aged 30 to 69 years referred to Neyshabur health service centers were studied after enrolment through cluster sampling. The data collection tool was a researcher-made self-report questionnaire that had acceptable validity (face and content) and reliability (Cronbach’s alpha = 0.83). Data were analyzed using descriptive and analytical statistics with SPSS v19.
ResultsFifty-two percent of participants never had a breast self-examination before, and 72.6% had never been to a health center for a clinical breast examination. Only 6.8% of the participants had regular physical activity. All constructs of conservation motivation theory, except fear, were correlated with breast cancer-preventive behaviors. Perceived self-efficacy had the highest score, and perceived cost had the lowest score among protection motivation theory constructs. Regression analysis reflected that protection motivation, perceived severity, perceived rewards, and awareness were predictors of the adoption of breast cancer–preventive behaviors. Overall, these variables could predict 15.4% of behavioral change.
ConclusionTheory-based educational planning to encourage women to adopt breast cancer-preventive behaviors, including a healthy lifestyle and screening behaviors, is essential.
Keywords: Prevention, Breast Cancer, Women, Motivation, Theory -
BACKGROUND
Domestic violence against women is a global problem that can lead to many negative consequences on physical, mental, and social health that various sociocultural causes play a role in its occurrence in different societies. Therefore, this study was conducted to determine the causes and type of violence against spouses in married men in Kerman.
MATERIALS AND METHODSThis cross‑sectional study was performed in 2018. The study was conducted on 400 married men who experienced violence against their wives. Sampling was a multistage cluster sampling method. The data collection tool was a questionnaire on violence against women. Data were analyzed using descriptive statistics, one‑way analysis of variance (ANOVA), and two‑variate analysis.
RESULTSThe results of the data showed that the highest rate of violence in the group of housewives was related to physical violence and in the group of women living in dormitories and pregnant women was related to verbal violence. The results of data analysis with a one‑way ANOVA test showed that between the three groups, all dimensions of violence and the overall score of violence had significant changes (P < 0.05). The results of the two‑variate analysis test showed that there was a significant relationship between the variables of age, duration of marriage, male education, spouse education, type of marriage, male job, and spouse job with the overall score of violence in all three groups (P < 0.05).
CONCLUSIONAccording to the results of the present study, it seems that the empowerment of women in all dimensions to improve and promote health to deal with domestic violence is essential. As a result, the relevant measures should be taken by the support systems taking into account the circumstances of the individuals.
Keywords: Domestic violence, health promotion, men, women, women’s empowerment -
Background
The widespread use of social media (SM) is an emerging phenomenon in today’s world, especially among adolescents.
ObjectivesThe present study was designed to examine the impacts of excessive use of SM on adolescents’ health.
MethodsThis was a qualitative study conducted in 2018 on 27 high school students (14 boys and 13 girls) in Tehran, Iran. To explain the experience of using SM, six open-ended questions along with some follow-up questions were asked through in-depth interviews by two interviewers. The content analysis with an inductive approach was used to analyze the data.
ResultsThe mean age of the students was 16.5 ± 1.34 years. The mean duration of having a smartphone was 3.11 ± 0.97years. Moreover, the duration of using smartphone in a day was 4 ± 1.5 hours. In this study, the themes emerged from 1,273 phrases, sentences, or semantic units separated from the interviews. After refining the semantic units, 861 refined units were created; these phrases of sentences or paragraphs appeared in the form of 7 themes, 18 main categories, and 38 sub-categories. The themes included the reasons for using SM (educational and non-educational, avoidance of negative emotions), emotional (changes in moods, academic failure), social (problems with family and society, relationships with relatives, cultural changes), physical (sensorineural hearing loss, changes in the sleep cycle, musculoskeletal pain), sexual (sexual fantasies, high-risk sexual behaviors), mental health (changes in mental powers and processing, loss of concentration), and the process of using SM (beliefs in the use and pattern of using SM).
ConclusionsMost of the complaints and impacts were related to emotional health, mostly with the experience of mood changes and academic failure and social health, respectively. The results indicated the need for planning educational and social interventions to increase media literacy in adolescents.
Keywords: Adolescents, Health Dimensions, Social Media -
اهداف
سالانه بیش از نیم میلیون نفر در سراسر جهان به بروسلوز مبتلا می شوند. آموزش یکی از راهکارهای اساسی در کنترل و پیشگیری از این بیماری است. مدل پرسید چارچوبی روشن برای برنامه ریزی برای تغییر رفتار ارایه می دهد. عوامل موثر بر رفتار در مرحله تشخیص آموزشی این مدل طبقه بندی می شوند. این مطالعه با هدف تعیین تاثیر مداخله آموزشی بر اساس مرحله آموزشی مدل پرسید-پروسید بر بهبود رفتارهای پیشگیرانه بروسلوز انجام شد.
مواد و روش هااین مطالعه نیمه تجربی در سال 1398 بر روی 150 نفر از روستاییان شهرستان مینودشت انجام شد. افراد با نمونه گیری طبقه ای در دو گروه کنترل و مداخله تقسیم شدند. به هر گروه هفتاد و پنج نفر اختصاص داده شد. ابزار گردآوری داده ها پرسشنامه ای روا و پایا بر اساس ساختارهای آموزشی مدل پرسید-پروسید و یک پرسشنامه جمعیت شناختی بود. داده های دو گروه قبل و سه ماه پس از مداخله آموزشی جمع آوری شد. داده ها در نرم افزار SPSS 19 و با استفاده از آزمون های تی، کای اسکویر و آزمون دقیق فیشر تحلیل شدند.
یافته هاقبل از مداخله بین متغیرهای جمعیت شناختی و عوامل قادرکننده بین دو گروه تفاوت معنی داری وجود نداشت (0.05<p). در مقابل، سه ماه پس از مداخله آموزشی نمرات عوامل قادرکننده و رفتارهای پیشگیرانه از بروسلوز بین دو گروه تفاوت معنی داری وجود داشت (0.05>p).
نتیجه گیریمداخله آموزشی مبتنی بر مرحله تشخیص آموزشی مدل پرسید-پروسید به طور موثر رفتارهای پیشگیری از تب مالت در روستاییان را ارتقاء می دهد.
کلید واژگان: مداخله آموزشی, پیشگیری, تب مالتAimsAnnually, more than half a million people worldwide are infected with brucellosis. Education is one of the basic strategies in controlling and preventing this disease. The PRECEDE model provides a clear framework for planning to change behavior. The factors affecting the behavior in the educational diagnosis stage of this model are categorized. This study aimed to determine the effect of educational intervention based on the educational phase of the PRECEDE-PROCEED model on the improvement of preventative behaviors of brucellosis.
Materials & MethodsThis semi-experimental study was carried out on 150 villagers of Minoodasht, Iran, in 2019. The subjects were selected by stratified sampling in two control and intervention groups. Seventy-five people were assigned to each group. Data collection tools were the valid and reliable questionnaire based on the educational structures of the PRECEDE-PROCEED model and a demographic questionnaire. Data of the two groups were collected before and three months after the educational intervention. Data were analyzed using SPSS 19 software through T, Chi-square, and exact Fisher tests.
FindingsThere was no significant difference between the two groups in demographic variables and enabling factors before the intervention (p>0.05). In contrast, there was a significant difference between the two groups in the enabling factors and preventive behaviors of brucellosis three months after the educational intervention (p<0.05).
ConclusionThe educational intervention based on the educational diagnosis phase of the PRECEDE-PROCEED model effectively promotes brucellosis prevention behaviors in the villagers.
Keywords: Educational Intervention, Prevention, Brucellosis -
مقدمه
انجام اقدامات پیشگیرانه مانند آموزش و مهارت های پیشگیری کننده مردم برای حفاظت فردی در مناطق اندمیک، می باشد که این مطالعه با هدف تعیین پیشگویی کننده های رفتارهای پیشگیری کننده از لیشمانیوز جلدی در دانش آموزان براساس الگوی اعتقاد بهداشتی و مدل بزنف انجام شد.
مواد و روش هادر این مطالعه توصیفی-تحلیلی تعداد 379 نفر از دانش آموزان شهر نیشابور به روش نمونه گیری خوشه ای چند مرحله ای انتخاب و مورد بررسی قرار گرفتند. برای جمع اوری داده از پرسشنامه ای استفاده شد که براساس الگوهای مورد بررسی طراحی و به صورت خود ایفاء تکمیل گردید.
یافته هاهمبستگی معنی داری 05/0p< بین تمام سازه های الگوهای مورد بررسی بجز حساسیت درک شده و آگاهی با قصد رفتاری مشاهده گردید. در مقایسه دو الگوی مورد بررسی سازه های الگوی بزنف در مجموع 32% و سازه های الگوی اعتقاد بهدشتی در مجموع 24% واریانس قصد رفتارهای پیشگیری کننده از لیشمانیوز را پیشگویی می کردند .
نتیجه گیریمیزان قصد و رفتارهای پیشگیری کننده از لیشمانیوز درجامعه مورد بررسی در حد متوسط بود که با توجه به آندمیک بودن بیماری در شهر نیشابور باید از طریق مداخلات آموزشی ارتقآء یابد. برنامه های اموزشی با هدف افزایش نگرش، هنجارهای انتزاعی، خودکارآمدی و منافغ درک شده و همچنین کاهش موانع درک شده می تواند در ارتقاء رفتارهای پیشگیری کننده از لیشمانیوز موثر باشد.
کلید واژگان: لیشمانیوز, الگوی اعتقاد بهداشتی, مدل بزنف, دانش آموزIntroductionPreventive measures such as training and preventive people skills are for personal protection in endemic areas that the aim of this study was to determine the predictors of preventive behaviors of cutaneous leishmaniasis in students based on Health Belief Model and BASNEF model.
Materials and MethodsIn this descriptive-analytical study, 379 students of Neyshabur city were selected and studied by multistage cluster sampling. A questionnaire was designed to collect data and was completed based on the study patterns.
ResultsSignificant correlation (P <.01) was found between all constructs of the models except perceived sensitivity and awareness with behavioral intention. Comparing the two models studied, the BASNEF model constructs predicted 32% of the total and the Behavioral belief model constructs 24% of the variance in intention to prevent leishmaniasis behaviors.
ConclusionThe prevalence of Leishmaniasis prevention behaviors in the studied community was moderate, which should be improved through educational interventions given that the disease is endemic in Neyshabur. Training programs aimed at enhancing attitudes, abstract norms, self-efficacy and perceived benefits as well as reducing perceived barriers can be effective in promoting leishmaniasis prevention behaviors.
Keywords: Leishmaniasis, Health Belief Model, BASNEF Model, Student -
BACKGROUND
Benefactors of nongovernmental organizations (NGOs) are the hidden public health promotion systems. These benefactors are the symbol and intermediary of people participation, which is one of the main arms of health promotion and reduction of poverty and injustice in the societies. The present study is aimed to identify the benefactors’ experiences in NGOs in terms of providing and promoting health‑oriented services.
MATERIALS AND METHODSThis study was conducted with a qualitative approach. The total number of participants was 32, which consisted of 25 chief executive officers from active and inactive organizations. Active organizations refer to organizations that submitted their 6‑month report at the time of the investigation and whose operating license was renewed and in operation and seven officials of the social deputy of governmental organizations related to NGOs. Data collection was performed by using semi‑structured interviews and with purposive sampling and then continued until data saturation. Furthermore, the content analysis method was used for data analysis. MAXQDA software version 2007 was used to manage quality data.
RESULTSDuring the data analysis, the following four subcategories were obtained: “high effort in empathy with fellow human beings,” “role of merit in the success of donors,” “creating a platform for social attention for the client’s spontaneity,” and “respect of the client,” which were the results of experience and dimensions. The performance of non‑governmental organizations is in line with the confrontation and responsibility of non‑governmental organizations with a focus on health‑oriented services.
CONCLUSIONHaving benevolent motives, benefactors attempt to provide conditions, in which help seekers have more chance for living through establishing new, sustainable, and future‑reassuring conditions.
Keywords: Health promotion, health‑oriented services, nongovernmental organizations, organizational citizenship -
اهداف
تب مالت یکی از مهم ترین مشکلات بهداشت عمومی درکشورهای در حال توسعه به ویژه در مناطق روستاییکه در تماس نزدیک با حیوانات هستند، می باشد. این مطالعه با هدف تعیین اثر بخشی مداخله آموزشی مبتنی بر تیوری انگیزش محافظت در ارتقاء رفتارهای پیشگیری کننده از تب مالت در دامداران کشاورز انجام شد.
مواد و روش هادر این مطالعه نیمه تجربی، تعداد 110 نفر از دامداران کشاورز (در دو گروه مداخله و کنترل) به روش نمونه گیری خوشه ای دو مرحله ای انتخاب شدند. ابزار گردآوری داده ها پرسشنامه محقق ساخته متشکل از دو بخش، که سوالات بخش اول شامل سوالات دموگرافیک و سوالات بخش دوم، مربوط به آگاهی از کلیات بیماری و سوالات سازه های تیوری انگیزش محافظت بودند. پرسشنامه ها در سه مرحله قبل، بلافاصله و دو ماه بعد از مداخله تکمیل گردید. داده های به دست آمده در نرم افزار SPSS16 با استفاده از آزمون های آماری توصیفی و آزمون های آماری تحلیلی (من ویتنی، شاپیرو ویلک، کروسکال والیس، رگرسیون، آزمون دقیق فیشر و کای اسکویر) مورد تجزیه و تحلیل و مقایسه قرار گرفتند.
یافته هابعد از مداخله آموزشی میانگین نمرات آگاهی و تمامی سازه های تیوری انگیزش محافظت در گروه مداخله در فواصل مختلف زمانی نسبت به گروه کنترل در مجموع افزایش معناداری داشته اند (0.05>P). همچنین سازه های تیوری انگیزش محافظت، 66% از واریانس رفتارهای پیشگیری کننده را پیش بینی نمودند و از این بین خودکارآمدی و انگیزش مرتبط با رفتار قویترین پیش بینی کننده ها بودند.
نتیجه گیریاین مطالعه اثر بخشی مداخله آموزشی بر اساس تیوری انگیزش محافظت در اتخاذ رفتارهای پیشگیری کننده از تب مالت را تایید میکند. می توان از تیوری انگیزش محافظت به عنوان چارچوبی جهت طراحی مداخلات آموزشی به منظور پیشگیری بیماری تب مالت در گروه های پرخطر استفاده نمود.
کلید واژگان: بروسلوزیس, پیشگیری اولیه, مداخله آموزشی, دامداران, کشاورزAimsBrucellosis is one of the most important public health problems in developing countries, especially in rural areas closely related to animals. This study determines the effectiveness of an educational intervention based on Protection Motivation Theory on promoting preventive behaviors from brucellosis between the farmerchr('39')s ranchers in the comprehensive rural health center.
Materials & MethodsIn this quasi-experimental study, 110 ranchers of the farmer (in two groups of intervention and control) were selected by two-stage cluster sampling. The data collection instrument was a researcher-made questionnaire consisting of two parts; the first part included demographic questions, and the second part related to knowledge of the disease and the Protection Motivation Theory questions. The data were analyzed by SPSS 16 using Mann Whitney, Shapiro-Wilk, Kruskal-Wallis, Regression, Fisherchr('39')s Exact Test, and Chi-Square.
FindingsAfter the educational intervention, awareness and all protection motivation theory structures in the intervention group compared to the control group have increased significantly (p<0.05). Also, the structures of protection motivation theory predicted 0.66% of the variance of preventive behaviors, and among them, self-efficacy and motivation related to behavior were the strongest predictors.
ConclusionThis study confirms the effectiveness of an educational intervention based on the Protection Motivation Theory on adopting brucellosischr('39')s preventive behaviors.
Keywords: Brucellosis, Primary Prevention, Educational Early Intervention, Ranchers, Farmer -
Background
Identification of psychological processes associated with increased physical activity (PA) i.e., sustainable motivation, is limited. Over recent years, self-determination theory (SDT) has been widely used to study long term PA motivation. Using path analysis in women in the reproductive age, the current study was conducted with the aim to investigate predictive factors of PA based on SDT.
MethodsThis cross sectional study was carried out on 412 women aged 15-49 years in Tonekabon, Mazandaran in the north of Iran in 2015. Path analysis was used to investigate the relationship between psychological need satisfaction, PA motivation, healthcare climate, various motivation types and PA. Additionally, path analysis was used to investigate the appropriateness of SDT for PA.
ResultsPerception of autonomy, enjoyment, health, appearance and social motives indirectly correlated with PA through Relative Autonomy Index (RAI). Moreover, RAI, perception of autonomy and social motive directly correlated with PA. These variables accounted for 56% of the variance in PA.
ConclusionFindings from this study can be used to design SDT-based interventions. In order to promote PA among women in the reproductive age, the autonomous behavioral regulation, perception of autonomy, and social motive should be strengthened.
Keywords: Physical activity, Self-determination theory, Women -
اهداف
پرفشاری خون به عنوان یکی از شایع ترین مشکلات بهداشتی مزمن در سراسر جهان است و رفتارهای خودمراقبتی به عنوان بخش مهمی از مدیریت فشار خون در این بیماران محسوب می شود. بنابراین، مطالعه حاضر با هدف تعیین تاثیر مداخله آموزشی مبتنی بر مدل پرسید (PRECEDE) بر ارتقای رفتارهای خودمراقبتی بیماران مبتلا به پرفشاری خون انجام شد.
مواد و روش ها:
این کارآزمایی شاهددار تصادفی شده در سال 1397 در بین 102 نفر از بیماران مبتلا به پرفشاری خون که به روش نمونه گیری خوشه ای چندمرحله ای انتخاب شده بودند، انجام شد. ابزار گردآوری اطلاعات شامل اطلاعات دموگرافیک و پرسش نامه استاندارد مبتنی بر سازه های مدل پرسید بود که به صورت مصاحبه تکمیل شد. گروه آزمون در 4 جلسه آموزشی شرکت نمودند. پرسش نامه ها قبل و 3 ماه بعد از انجام مداخله آموزشی از شرکت کنندگان دو گروه آزمون و کنترل جمع آوری شد. داده ها در نرم افزار SPSS 19 و با استفاده از آزمون های آماری کای اسکویر، t مستقل، t زوجی و رگرسیون خطی تحلیل شدند.
یافته ها:
نتایج نشان داد که آگاهی، نگرش و عوامل قادر کننده 20% از واریانس رفتارهای خودمراقبتی بیماران مبتلا به پرفشاری خون قبل از انجام مداخله آموزشی را پیشگویی می نمودند. پس از انجام مداخله آموزشی میانگین نمرات همه سازه های مدل پرسید به جز عوامل قادرکننده بین دو گروه آزمون و کنترل تفاوت آماری معناداری داشت (0.05<p). همچنین میانگین نمره رفتارهای خودمراقبتی 3 ماه بعد از مداخله آموزشی در گروه آزمون در مقایسه با گروه کنترل به طوری معناداری افزایش یافته بود (0.05>p).
نتیجه گیری:
افزایش میانگین رفتار خودمراقبتی در بیماران تحت مداخله آموزشی حاکی از نقش موثر آموزش در به کارگیری رفتارهای خودمراقبتی است. برنامه ریزی صحیح به منظور انجام مداخلات آموزشی بر اساس مدل پرسید و نیز فراهم نمودن ساختارهای لازم با هدف تسهیل تحقق رفتارهای خودمراقبتی در بیماران فشار خونی ضروری است.
کلید واژگان: مدل پرسید, فشارخون, خودمراقبتی, آموزشAimsHypertension is one of the most common chronic health problems worldwide and self-care behaviors are an important part of managing blood pressure in these patients. Therefore, the present study was conducted to determine the effect of educational intervention based on the PRECEDE model on the promotion of self-care behaviors of patients with hypertension.
Materials & MethodsThis randomized controlled trial was performed among 102 patients with hypertension who were selected by multi-stage cluster sampling in 2018. Data collection tools included demographic information and a standard questionnaire based on the PRECEDE model constructs which were completed by interview. The experimental group participated in 4 training sessions. Questionnaires were collected before and 3 months after the educational intervention from the participants of the experimental and control groups. Data were analyzed in SPSS 19 software using Chi-square, independent t-test, paired t-test, and linear regression.
FindingsThe results showed that knowledge, attitude and enabling factors predicted 20% of the variance of self-care behaviors of patients with hypertension before the educational intervention. After the educational intervention, the mean scores of all structures of the PRECEDE model were statistically significant between the experimental and control groups (p<0.05), except for the enabling factors (p>0.05). Also, the mean score of self-care behaviors 3 months after the educational intervention in the experimental group was significantly increased compared to the control group (p<0.05).
ConclusionsIncreasing the average of self-care behavior in patients undergoing educational intervention indicates the effective role of education in the use of self-care behaviors. Proper planning for educational interventions based on the PRECEDE model as well as providing the necessary structures is necessary to facilitate the realization of self-care behaviors in patients with hypertension.
Keywords: PRECEDE-PROCEED model, Hypertension, Self Care, Education -
مقدمه
قرنطینه از نظر پزشکی در پیشگیری از ابتلاء به بیماری در مردم بسیار موثر است. با توجه به نقش پررنگ زنان در شکل گیری رفتارهای بهداشتی خانواده، مطالعه حاضر با هدف تعیین میزان آگاهی، نگرش و عملکرد زنان شهر سبزوار در خصوص قرنطینه خانگی جهت پیشگیری از بیماری کرونا ویروس انجام شد.
روش کاراین مطالعه مقطعی در سال 1398 بر 605 نفر از زنان شهر سبزوار انجام شد. ابزار مطالعه، پرسشنامه محقق ساخته بود که روایی و پایایی آن مورد تایید قرار گرفت. دامنه نمرات هر بعد پرسشنامه بین 100-0 منظور شد. داده ها با روش نمونه گیری در دسترس و غیراحتمالی و به صورت انتشار مجازی جمع آوری شد. تجزیه و تحلیل داده ها با استفاده از نرم افزار آماری SPSS (نسخه 16) و آزمون های تی تست، آنالیز واریانس، همبستگی پیرسون و رگرسیون خطی انجام شد. میزان p کمتر از 05/0 معنادار در نظر گرفته شد.
یافته هابیشترین نمره میانگین عملکرد نسبت به برنامه قرنطینه خانگی در گروه سنی بالای 55 سال (31/22±58/82) و تحصیلات دانشگاهی (95/21±77/70) بود. میانگین نمره آگاهی زنان 73/13±45/73 و نگرش 27/7±74/80 و عملکرد آنان نسبت به برنامه قرنطینه خانگی 14/22±71/69 گزارش شد. سن (6/2=B، 004/0=p)، تحصیلات (45/4=B، 03/0=p) و نگرش زنان (27/0=B، 03/0=p) تاثیر افزاینده ای بر عملکرد آنان داشتند.
نتیجه گیریسطح آگاهی، نگرش و عملکرد زنان در خصوص اجرای قرنطینه خانگی جهت پیشگیری از کرونا ویروس مطلوب بود، اما برخلاف نگرش مثبت زنان نسبت به قرنطینه خانگی، عملکرد آنها مناسب گزارش نشد. این موضوع نشان می دهد با توجه به نقش زنان در بهبود رفتارهای بهداشتی در اعضای خانواده، افزایش مهارت و توانمندی آنها یک امر ضروری است.
کلید واژگان: آگاهی, بیماری های واگیردار, عملکرد, قرنطینه, کووید-19, نگرشIntroductionQuarantine is medically very effective in protecting the public from disease. Given the significant role of women in forming the health behavior of the family, this study was performed with aim to investigate the level of knowledge, attitude, and practice of women in Sabzevar concerning home quarantine for prevention of the new coronavirus disease.
MethodsThis cross-sectional study was performed on 605 women of Sabzevar in 2019. The study tool was a researcher-made questionnaire whose validity and reliability were approved. The range of scores in each dimension of the questionnaire was between 0 and 100. Data were collected by available and non-probabilistic sampling methods as virtual dissemination. Data were analyzed by SPSS software (version 16) and t-test, analysis of variance, Pearson correlation test, and linear regression test. P<0.05 was considered statistically significant.
ResultsThe highest mean score of practice concerning the home quarantine program were observed in the age group upper 55years (82.58±22.31) and College education (70.77±21.95). The mean scores of women's knowledge, attitude, and practice concerning the home quarantine program were 73.45 ± 13.73, 80.74 ± 7.27, and 69.71 ± 22.14, respectively. Age (P =0.004, B =2.6), education level (P = 0.03, B = 4.45), and attitude (P = 0.03; B =0.27) had an increasing impact on women’s practice.
ConclusionThe level of knowledge, attitude, and practice about the implementation of home quarantine to prevent coronavirus disease was satisfied. However, despite the positive attitude of women about the implementation of home quarantine, their practice was not satisfied. This shows that given the role of women in improving the health behavior of the family, enhancing their skills and capabilities is essential.
Keywords: Knowledge, Attitude, Practice, Communicable diseases, Quarantine, COVID-19 -
زمینه و هدف
پیشگیری، بهترین راه قطع زنجیره انتقال کووید-19 بیان شده است. هدف از این مطالعه تعیین آگاهی، نگرش و عملکرد مردم در خصوص قرنطینه خانگی جهت پیشگیری از کووید-19 در شهرستان سبزوار بود.
روش هادر مطالعه مقطعی حاضر، 836 نفر از افراد شهرستان سبزوار در سال 1399 شرکت نمودند. گرداوری داده ها بوسیله پرسشنامه مجازی و انتشار آن در رسانه های مجازی به روش های غیراحتمالی (در دسترس و گلوله برفی) انجام شد. پرسشنامه مورد استفاده در این مطالعه محقق ساخته و شامل سوالات دموگرافیک، آگاهی، نگرش و عملکرد بود. روایی و پایایی پرسشنامه تایید شد.
یافته هامتغیرهای جنسیت، نگرش و شغل بر روی عملکرد، متغیرهای جنسیت، تحصیلات، شغل و نگرش بر روی آگاهی و متغیرهای آگاهی، سن، جنسیت و بیماری زمینه ای بر روی نگرش افراد در مورد قرنطینه خانگی تاثیر معنی داری دارند (05/0˂P).
نتیجه گیرینحوه عملکرد مردم نسبت به قرنطینه خانگی در برابر کووید-19 به عوامل مختلفی بستگی دارد. توجه به جنسیت، نگرش و شغل افراد در سیاستگذاری های مرتبط با قرنطینه خانگی می تواند عملکرد افراد جامعه را بهبود نماید.
کلید واژگان: آگاهی, نگرش, عملکرد, قرنطینه, کروناویروس, کووید-19Background and AimPrevention is the best way to break the transmission chain of COVID-19. The aim of this study was to determine the knowledge, attitude and practice of people regarding home quarantine to prevent COVID-19 in Sabzevar city, Iran.
MethodsIn the present cross-sectional study in 2020, 836 people from Sabzevar participated. Data were collected by the virtual questionnaire and released in social media by nonprobability methods (Convenience and Snowball). The study questionnaire was researcher-made. The questions included demographics, knowledge, attitude and practice. The validity and reliability of the questionnaire were confirmed.
ResultsThe variables of gender, attitude and job on practice, variables of gender, education, job and attitude on knowledge and variables of knowledge, age, gender and underlying disease on attitude toward home quarantine have a significant impact (P˂0.05).
ConclusionPeoplechr('39')s practice regarding home quarantine to prevent COVID-19 depends on a number of factors. Paying attention to the gender, attitude and occupation of individuals in policy making regarding home quarantine can improve the performance of the public.
Keywords: Knowledge, Attitude, Practice, Quarantine, SARS-CoV-2, COVID-19 -
در این مقاله، ابتدا به مرور برخی تعاریف مربوط به حسابان کسری و تعریف آنتروپی کسری، به عنوان تعمیمی از آنتروپی شنون، می پردازیم. در ادامه به ارایه تعریف معیار اهمیت لغات تعمیم یافته بر اساس آنتروپی کسری می پردازیم. با استفاده از تعریف پیشنهادی، به ارایه روشی جدیدی در متن کاوی بر اساس آنتروپی کسری خواهیم پرداخت. استفاده از روش ارایه شده برای استخراج نمایه ی کتاب آماری کسلا و برگر (1990)، نشان می دهد که مقدار میانگین هارمونیک بازیابی و صحت برای روش پیشنهادی بیشتراز مقدار بدست با روش متن کاوی متداول بر اساس آنتروپی شنون می باشد. این نتایج نشان می دهد که روش پیشنهادی برای متن کاوی با استفاده آنتروپی کسری، نسبت به روش متداول بر اساس آنتروپی شنون، ابزار جامع است.
کلید واژگان: آنتروپی شنون, آنتروپی کسری, متن کاوی, رتبه بندی کلماتIn this paper, we firstly review some definitions related to fractional calculus and fractional entropy, as a generalization of Shannon entropy. Then we introduce the generalized word importance metric based on fractional entropy. Using the proposed definition, we introduce a new text mining method based on fractional entropy. This method for keyword extraction of the Statistical Inference book by Casella and Berger (1990) shows that the F-measure value of the proposed text mining method, is higher than the related value for common text mining method based on Shannon entropy. These results indicate that the proposed text mining method based on fractional entropy is more comprehensive than the traditional text mining based on Shannon entropy.
Keywords: Shannon entropy, Fractional entropy, Text Mining, Word ranking -
زمینه و هدف
میزان تغذیه انحصاری با شیر مادر در ایران در سال های 1394-1370 بین 53-10 درصد برآورد شده است که با توجه به اهمیت شیر مادر برای کودک باید ارتقاء یابد.برای مداخله در جهت ارتقاء تغذیه انحصاری با شیر مادر در نخستین گام باید عوامل موثر بر آن مشخص شوند.ازآنجایی که پرسشنامه استاندارد و بومی در این زمینه وجود ندارد لذا،این مطالعه باهدف طراحی وروان سنجی ابزار بومی برای سنجش عوامل موثر بر تغذیه انحصاری با شیر مادر در زنان نخست زای شهر کاشمر بر اساس تیوری رفتار برنامه ریزی شده انجام شد.
مواد و روش هادر این مقاله مقطعی ابزار اولیه با استفاده از بررسی متون، و نیازسنجی اعتقادات بر اساس تیوری رفتار برنامه ریزی شده و تجربه محقق و در امر شیردهی طراحی گردید. برای اعتبار ابزار از ، روایی صوری با مشارکت 10 مادر شیرده، روایی محتوا کیفی و کمی از طریق پانل خبرگان با مشارکت 10 متخصص آموزش بهداشت و متخصص طراحی ابزار و روایی سازه با انتخاب 156نفر از جامعه بررسی انجام شد و پایایی ابزار به روش همسانی درونی و آزمون-بازآزمون موردبررسی قرار گرفت.نتایج پرسشنامه اولیه با 67 آیتم طراحی شد. ادبیات بعضی سوالات .در روایی صوری و روایی محتوای کیفی تغییر کرد و 6 آیتم به دلیل کسب نمره کمتر از 5/1 در روایی صوری کمی حذف شدند.در روایی محتوا تعداد12 آیتم با در نظر گرفتن نقطه برش 62/0 برای نسبت اعتبار و نقطه برش 79/0برای سنجش شاخص اعتبار محتوا حذف شدند. روایی سازه توسط تحلیل عامل تاییدی در نرم افزار لیزرل انجام شد که مقادیر MSEA=0/072،AGFI=0/964 به دست آمد.پایایی ابزار هم با استفاده از روش های همسانی درونی (a=0/832) و ثباتان از طریق آزمون مجدد (ICC=0/738) تایید گردید.
نتیجه گیرینتایج نشان می دهد که پرسشنامه طراحی شده یک ابزار معتبر وبا روایی و پایایی قابل قبول می باشد و استفاده از آن در پژوهش های مرتبط توصیه می شود.
کلید واژگان: تغذیه انحصاری با شیر مادر, تئوری رفتار برنامه ریزی شده, طراحی و روان سنجیPurposeThe amount of exclusive breastfeeding in Iran during the years1991- 2015is estimated 10- 53%,for improwing this, in the first step,the effective factors should be determined.Due to the lack of standard and indigenous questionnaires on the determinants of effective factors on lactation,this study aimed to design and validate native instruments for measuring thefactors affecting exclusive breastfeeding in Kashmars nulliparous based on the theory of planned behavior.
Materials and methodsIn this cross-sectional study,original tool was designed using the literature review and need assessment of beliefs To validate participated10nursing mothers,content-related validity through the panel of experts with the participation of10 experts in health education and tool design and validity Structures were studied by selecting156 of the survey population.The reliability of the tool was examined by internal consistency and Ray-Test.
ResultsThe initial questionnaire was designed with 67 items. In the face value and validity of qualitative literature content,some questions were changed and in the face validity,6 items were omitted due to the score of less than11.5.In content validity,considering the cutting point79/0to measure content validity index and cut point of./62for the ratio of credit,18 items were deleted. Structural validity was performed by confirmatory factor analysis in LISREL software,The Reliability of the tool was also approved using methods such as internal consistency(α=0.832)and its stability through retest method (ICC=70.38).Conclusion Questionnaire designed for effective factors on exclusive breastfeeding in primipara women is a trustworthy tool with acceptable reliability and validity and we recommend it in related studiesKeywords: exclusive breastfeeding, theory of planned behavior, design and psychometric.
Keywords: exclusive breastfeeding, theory of planned behavior, design, psychometric -
اهداف
قلیان امروزه در بین جوانان محبوبیت زیادی پیدا کرده است. با توجه به افزایش شیوع مصرف قلیان در بین دانشجویان، مطالعه حاضر با هدف تعیین تاثیر مداخله آموزشی بر قصد ترک مصرف قلیان در بین دانشجویان پسر با بهره گیری از نظریه رفتار برنامه ریزی شده و رویکرد فرآیند رفتار بهداشتی انجام شد.
مواد و روش هااین مطالعه نیمه تجربی روی 150 دانشجوی پسر مصرف کننده قلیان در دانشگاه آزاد اسلامی واحد سبزوار در سال 1396 انجام شد که به صورت تصادفی ساده انتخاب و در دو گروه مداخله و کنترل (هر گروه 75 نفر) قرار گرفتند. ابزار گردآوری اطلاعات شامل پرسش نامه اطلاعات جمعیت شناختی و پرسش نامه محقق ساخته مبتنی بر سازه های فاز انگیزشی رویکرد فرآیند رفتار بهداشتی و نظریه رفتار برنامه ریزی شده بود. مداخله طی 6 جلسه 45 دقیقه ای برای گروه مداخله برگزار شد. هر دو گروه، پرسش نامه ها را قبل و یک ماه پس از مداخله تکمیل نمودند. داده ها در نرم افزار SPSS 23 و توسط آزمون های آماری تحلیل شدند.
یافته هابین دو گروه، قبل از مداخله از نظر میانگین نمرات درک خطر، انتظارات پیامد، خودکارآمدی عمل، نگرش، هنجارهای انتزاعی، کنترل رفتاری درک شده و قصد رفتاری نسبت به ترک مصرف قلیان، تفاوت آماری معنی داری وجود نداشت (0.05>p)، در حالی که بعد از مداخله به جز سازه نگرش، این تفاوت ها معنی دار بود (0.05<p). همچنین پس از مداخله، قصد ترک مصرف قلیان در دانشجویان گروه مداخله نسبت به گروه کنترل تفاوت معنی داری داشت (0.004=p).
نتیجه گیریمداخله آموزشی طراحی شده براساس نظریه رفتار برنامه ریزی شده و مرحله انگیزشی رویکرد فرآیند رفتار بهداشتی در ایجاد قصد ترک مصرف قلیان در میان دانشجویان اثربخش است.
کلید واژگان: مداخله آموزشی, قصد, مصرف قلیان, دانشجویانAimsWater pipe smoking has become very popular among young people. Regarding to the increasing prevalence of water pipe smoking among students, the aim of this study was to determine the effects of an educational intervention based on Theory of Planned Behavior (TPB) and Health Action Process Approach (HAPA) on male students’ intention to quit water pipe smoking.
Materials & MethodsThis semi-experimental study was conducted on 150 male students of the Islamic Azad University of Sabzevar-Iran, in 2017 who were selected by simple random sampling method and allocated to two control and intervention groups (75 people in each group). Data collection tool included a demographic information questionnaire and a researcher-made questionnaire based on motivational phase constructs of health action process approach and theory of planned behavior. Intervention group participants received six sessions of education (45 minutes per session). Both groups completed questionnaires in baseline and one month after the intervention. Data were analyzed in SPSS 23 software using statistical tests.
FindingsBefore the intervention, there was no significant difference in the mean scores of the constructs of risk perception, outcome expectancy, action self-efficacy, attitude, subjective norms, perceived behavioral control, and behavioral intention to quit water pipe smoking between the two groups (p>0.05). However, after the intervention, these differences were significant except attitude (p<0.05). Also, after the intervention, intention to quit water pipe smoking in the students of intervention group had significant difference compared to the control group (p=0.004).
ConclusionThe educational intervention based on Theory of Planned Behavior (TPB) and Health Action Process Approach (HAPA) is effective in creating the intention to quit water pipe smoking among students.
Keywords: Educational Intervention, Intention, Water pipe Smoking, Students
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