193 research outputs found
Impact of Performing Health Promotion Model Intervention on Physical Activity of Health Volunteer of Torbat-e-Jam City, Iran
Abstract Aims: Regular physical activity can reduce the burden of chronic diseases, such as heart disease, diabetes, and some cancers, and can prevent early death. This study examined the impact of performing health promotion model intervention on physical activity of the health volunteers. Materials & Methods: This cross-sectional research is part of a three-month Intervening study started in 2015 on 80 health volunteers in Torbat-e Jaam City, Iran, which was selected by multistage random sampling method and participants were divided into two interventional and control groups. A Demographic Questionnaire and The Persian version of International Physical Activity Questionnaire were used to collect data. The data was analyzed in SPSS 16 using independent T, Pearson's correlation coefficient and linear regression tests. Findings: Before the intervention the mean of perceived benefit score was 31.3±4.5 that was evaluated as “good” but self-efficacy and behavior scores were 5.8±4.1 and 912.4±750.8 that were assessed as “poor”. Physical activity had positive correlation with perceived benefits, self-efficacy, commitment, positive, emotion and situational influences and a negative correlation with perceived barriers. Overall 66.8 of the physical activity was predicted by Pender’s Health Promotion Model variables. There was a significant difference between the mean scores of physical activity and other structures of HPM in the experimental group after the intervention and its score before intervention. Conclusion: Educational program based on Pender's health promotion model is effective in improving physical activity of health volunteers
Assessing the Physical Activity of Health Volunteers Based on the Pender's Health Promotion Model
Abstract Aims: Physical inactivity has been identified as the 4th leading risk factor for global mortality causing an estimated of 3.2million deaths per year. This study aimed to assess the physical activity of health volunteers with Pender's Health Promotion Model. Instrument & Methods: This cross-sectional analytical study was performed on 80 health volunteers in Torbat-e-Jam City, Iran, in 2015. A researcher-made questionnaire with the following sections was used to gather data; perceived benefits, perceived barriers, self-efficacy, interpersonal influences, positive emotion, commitment, modeling and competing preferences. SPSS 16 sofware was used to analyze data by independent T, Pearson's correlation coefficient and linear regression tests. Findings: There was no significant difference between the scores according to educational levels, age groups, BMI score, marital status, habitat and experience as a health volunteer duration. Physical activity had positive correlation with perceived benefits, self-efficacy, commitment, positive emotion and situational influences and a negative correlation with perceived barriers. Situational influences, as the strongest predictor of the physical activity, predicted 35.1 of it and then positive emotions predicted 34.7 and self-efficacy predicted 23.4 of physical activity. Conclusion: The level of physical activity in health volunteers of Torbat-e-Jam City, Iran, is not appropriate and is less than moderate
Combination of gastric atrophy, reflux symptoms and histological subtype indicates two distinct aetiologies of gatric cardia cancer.
<b>INTRODUCTION</b>
Atrophic gastritis is a risk factor for non-cardia gastric cancer, and gastro-oesophageal reflux
disease (GORD) for oesophageal adenocarcinoma. The role of atrophic gastritis and GORD in the
aetiology of adenocarcinoma of the cardia remains unclear. We have investigated the association
between adenocarcinoma of the different regions of the upper gastrointestinal tract and atrophic
gastritis and GORD symptoms.
<b>METHODS</b>
138 patients with upper GI adenocarcinoma and age and sex matched controls were studied.
Serum pepsinogen I/II was used as a marker of atrophic gastritis and categorised to five quintiles.
History of GORD symptoms, smoking and H.pylori infection was incorporated in logistic regression
analysis. Lauren classification of gastric cancer was used to subtype gastric and oesophageal
adenocarcinoma.
<b>RESULTS</b>
Non-cardia cancer was associated with atrophic gastritis but not with GORD symptoms; 55% of
these cancers were intestinal subtype. Oesophageal adenocarcinoma was associated with GORD
symptoms, but not with atrophic gastritis; 84% were intestinal subtype. Cardia cancer was positively
associated with both severe gastric atrophy [OR, 95% CI: 3.92 (1.77 – 8.67)] and with frequent
GORD symptoms [OR, 95% CI: 10.08 (2.29 – 44.36)] though the latter was only apparent in the nonatrophic
subgroup and in the intestinal subtype. The association of cardia cancer with atrophy was
stronger for the diffuse versus intestinal subtype and this was the converse of the association
observed with non-cardia cancer.
<b>CONCLUSION</b>
These findings indicate two distinct aetiologies of cardia cancer, one arising from severe atrophic
gastritis and being of intestinal or diffuse subtype similar to non-cardia cancer, and one related to
GORD and intestinal in subtype, similar to oesophageal adenocarcinoma. Gastric atrophy, GORD
symptoms and histological subtype may distinguish between gastric versus oesophageal origin of
cardia cancer
Co-infection of Malaria and Crimean-Congo Hemorrhagic Fever
Southeast of Iran is an endemic area for Malaria and Crimean-Congo hemorrhagic fever (CCHF). In 1999, we faced with an outbreak of CCHF in Sistan and Baluchistan Province, in the border of Pakistan and Afghanistan. The most cases of Malaria in Iran are also reported from this area. This article presents a 17-year- old woman who admitted to our hospital because of acute fever, headache, epistaxis, hemorrhagic lesions on the skin and vaginal bleeding. Finally, she was recognized as a case that was co –infected with CCHF and malaria
Properties of Pt Schottky Type Contacts On High-Resistivity CdZnTe Detectors
In this paper we present studies of the I-V characteristics of CdZnTe
detectors with Pt contacts fabricated from high-resistivity single crystals
grown by the high-pressure Brigman process. We have analyzed the experimental
I-V curves using a model that approximates the CZT detector as a system
consisting of a reversed Schottky contact in series with the bulk resistance.
Least square fits to the experimental data yield 0.78-0.79 eV for the Pt-CZT
Schottky barrier height, and <20 V for the voltage required to deplete a 2 mm
thick CZT detector. We demonstrate that at high bias the thermionic current
over the Schottky barrier, the height of which is reduced due to an interfacial
layer between the contact and CZT material, controls the leakage current of the
detectors. In many cases the dark current is not determined by the resistivity
of the bulk material, but rather the properties of the contacts; namely by the
interfacial layer between the contact and CZT material.Comment: 12 pages, 11 figure
Review of invasive grapevine aphid, Aphis illinoisensis Shimer, and native parasitoids in the Mediterranean (Hemiptera, Aphididae; Hymenoptera, Braconidae, Aphidiinae)
A summary of the study of Aphis illinoisensis Shimer on grapes, Vitis vinifera in the Mediterranean area brings references and new findings on its distribution in Crete/Greece, Turkey, Northern Cyprus, Malta, Israel, Montenegro, Tunisia, Algeria and Libya. Parasitoids of A. illinoisensis were only occasionally found (Aphidius matricariae Hal. - Cyprus, Turkey, Greece; Aphidius colemani Viereck - Libya; Lysiphlebus testaceipes Cress. - Algeria). Of the native species, i.e. A. colemani, and others similar to the native species, L. testaceipes seem to be a promising biocontrol agent within the framework of an ecologically friendly management in the area. Given the evidence of its expansion, A. illinoisensis is expected to expand further in several directions from the recently documented invaded area to all the grape-growing areas of the Mediterranean and even those of South-Eastern and Central Europe
Accuracy of endoscopic ultrasonography for determination of tumor invasion depth in gastric cancer
Background: Gastric cancer (GC) is one the common lethal cancers in Iran. Detection of GC in the early stages would assesses to improve the survival of patients. In this study, we attempt to evaluate the accuracy of EUS in detection depth of invasion of GC among Iranian Patients. Materials and Methods: This study is a retrospective study of patients with pathologically confirmed GC. They underwent EUS before initiating the treatment. The accuracy of EUS and agreement between the two methods was evaluated by comparing pre treatment EUS finding with post operative histopathological results. Results: The overall accuracy of EUS for T and N staging was 67.9 and 75.47, respectively. Underestimation and overestimation was seen in 22 (14.2) and 40 (25.6) respectively. The EUS was more accurate in large tumors and the tumors located in the middle and lower parts of the stomach. The EUS was more sensitive in T3 staging. The values of weighted Kappa from the T and N staging were 0.53 and 0.66, respectively. Conclusions: EUS is a useful modality for evaluating the depth of invasion of GC. The accuracy of EUS was higher if the tumor was located in the lower parts of the stomach and the size of the tumor was more than 3 cm. Therefore, judgments made upon other criteria evaluated in this study need to be reconsidered
Two new records of aphid hyperparasitoids (Hym.: Figitidae) from Iran
همراه با جمعآوری زنبورهای پارازیتویید شتهها در ایران طی سالهای 1385-1380، تعداد چهار گونه زنبور هیپرپارازیتویید نیز جمعآوری و شناسایی شد که دو گونهی Alloxysta fulviceps (Curtis) و A. victrix (Westwood) برای فون ایران جدید میباشند. گونهی A. fulviceps هیپرپارازیتویید زنبور Aphidius matricariae Haliday روی شتهی Aphis fabae Scopoli و گونهی A. victrix هیپرپارازیتویید زنبور Lysiphlebus fabarum (Marshall) روی شتهیAphis gossypii Glover بودند
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