97 research outputs found
Examining the possibilty of multiplication and breeding of (Schizothorav [sic] zarudnyi) in order to restoration of regional aquatics reservations of Hamoon Lake and taking its advantag [sic] for aquaculture
Schizothorax zarudnvi, is an endemic fish of east country waters. (Triple lagoons of Hamoon and relevant water resources) that in the world it is reported in this resource specially. This fish named Hamoon mahi is one of the most economically valuable species in this region. Because of the recent years droughts, Hamoon logoon has been drive since 2000. Also, semi-wells (a semi natural resource) were affected drastically by recent drought years and their volume reduced to nearly one third of their real volume and resulted in changing at growth and reproduction physiology process in Schizothorax zanidnyi, brood stocks. Beginning of this project was done from October 2003. It's field studies begun (brood catching) since November 2001 by two methods including entangling gairs and at semi wells of Sistan that (Beach seine) had maximum rate of preparing qualified brood stocks. Broods transferred to Cyprinidea reproduction work shop of Zahak and after taking primary measures they stored in to the edaphic pools. Increasing the success safety factor (coefficient) for artificial reproduction of Sthizothorax zarudnyi , identifying the appropriate tune for Hormonal acceptance (physiological preparation of broods) is needed , so this important work was done regularly by histological studies and GSI measurements since November. Highest GSI rates of females (%80.51) and highest IV stage abundance of sexual maturity (%l 00) were observed an march. On the base of this date, Hormone therapy was done on broods on march. The used hormones are as follows Hypophysis. extraction, GnRHa and Anti Dopamin at the dozes of 3-6 ml, 20-30kg and 10-15 ml per kg body weight respectively and 2-3 times from 11-12-80 they were injected. Injected broods kept in to two circumstances, flow-through (rounded pool) and stagnant systems. In stagnant system 14 and 19 individuals of female and male (Schizothorax zauiulnri) broods, respectively injected in 11th, 15111, 19th, and 24th of march 1380. Non of the injected broods in 11 and 15 and 19th march (in stagnant Condition) answered to Hormone therapy. After final injection broods had general less activity and a few of them died. Mean temperature of brood pond waters (daily) which were injected. Fluctuated between 10-25-13. 63°c but injected broods on 24th march had different characteristics. They had pale color and had few fecundity. In this stage of injection they hadn't any successful vulation. After injection, Mean daily water temperature was 15, 88-17, 54°c. In Flowing system, 13-16 individual of males and females respectively were injected on 15th, 19th, 22th and 23th march. None of injected producers on 15th and 19th march with mean daily water temperature of 10, 25-12°c were prepared for spawning but injected producers on 22nd an 23th march with mean daily water temperature of 13.5-1 rc responded about 75-100 percent. (Schizothorax zarudnyi) brood stocks were prepared for spawning after 353-428 hours/day from final injection. Diameter of obtained eggs (before fertilization) was between 1.9-2.3 min and of fertilized eggs was 3.8mm. Fertilized eggs of (Schizothorax zarudnyi) were hatched after 6-7 days with mean water temperature of 17.08°c. Mean length of on one day larvae was 9.47 mm. Larvae was 9.47 mm. Larvae adsorbed the whole yolk sac after , 5-6 days at 17- 1°c and were prepared for releasing in to edaphic pools. Because of the lack of necessary and complementary facilities in the region , they had to release them in to veniros and growing them for 8 days. At the end of 18th day , 35000 larvae (at first) released into an edaphic pond with a volume of 150m2. After growing them for one moth , mean length and weight of new hatched larvae was 29.41 mm and 1.12►r , respectively. With respect to results of this investigation , artificial reproduction of (Schizothorax zarudnyi) Can be possible at 14-17°C and flowing water with Hormonal treatment. It -s breeding has increased development than other cultural specious in the region. Due to high economical value of this specious in Sistan and ti-s specialization east waters of Iran and having high resistance and proper growth There is a need of it's development and reproduction and culture in fish culture fanns (edaphic ponds• two-purpose pools) at the region and country
Economical, Heritage and Existential Evaluation of the National Park and Tandureh Protected Area Using the Conditional Method
In this article, a research has been conducted using conditional method, aiming to economically, based on heritage, and existentially, estimate and evaluate the National Park and Tandureh protected area. The required data were collected through libraries and field visits and questionnaires answered by visitors of the National Park and Tandureh protected area. Gender, number of family members, distance and income affected people’s willingness to pay and was statistically significant, and ultimately, the economical, heritage-based, and existential evaluation of the National Park and Tandureh protected area was determined by gathering information, collecting qualitative and quantitative data concerning the National Park and Tandureh protected area, visiting the park site, conducting and writing questionnaires, answering the questionnaires by the visitors, and determining the willingness to pay (WTP), and eventually by analyzing the collected information by using the Excel and Eviews
Economical, Heritage and Existential Evaluation of the National Park and Tandureh Protected Area Using the Conditional Method
In this article, a research has been conducted using conditional method, aiming to economically, based on heritage, and existentially, estimate and evaluate the National Park and Tandureh protected area. The required data were collected through libraries and field visits and questionnaires answered by visitors of the National Park and Tandureh protected area. Gender, number of family members, distance and income affected people’s willingness to pay and was statistically significant, and ultimately, the economical, heritage-based, and existential evaluation of the National Park and Tandureh protected area was determined by gathering information, collecting qualitative and quantitative data concerning the National Park and Tandureh protected area, visiting the park site, conducting and writing questionnaires, answering the questionnaires by the visitors, and determining the willingness to pay (WTP), and eventually by analyzing the collected information by using the Excel and Eviews
Survey of risk factors status in patients with 3VD candidate for coronary artery bypass graft surgery (CABGs)
Cardiovascular diseases are one of the most common health problems that threaten life. coronary artery disease (CAD) is major cause of morbidity and mortality in human communities.CAD have many mental، physical and social consequences for sufferer and its risk factors divided to two major groups: modifiable and no modifiable that modifiable risk factors will control with change in life style The main purpose of this study was to determine the coronary risk factors status among patient with 3VD after angiography that candidate for CABG. The study investigated 1000 coronary patients with 3VD (660 males and 340 females) aged 54.8±9.1 years. Outcome variable included demographic and coronary risk factors parameters were collected. We used of a questionnaire for collecting data from patient. Using descriptive statistics performed data analysis 38% of patient had history of diabetes mellitus، 32% had hypertension and 40% had history of cigarette smoking.11% had BMI≥30، % 45.6 of patient had O+ (blood group).87% of patient had total cholestrol≥200، 81% had TG≥200 and about 70% had LDL>100.there were statistically significant differences between sex with cigarette smoking، HTN، DM (P<0.05) and age with TG (P<0.05). Coronary risk factors such as inappropriate clinical status and undesirable lipid profile status threaten population health and CAD patient with 3VD، therefore more control and preventive strategies should be considered.
Keywords: coronary artery bypasses graft, risk factor, and coronary artery diseas
Transcriptional transactivation by selected short random peptides attached to lexA-GFP fusion proteins
BACKGROUND: Transcriptional transactivation is a process with remarkable tolerance for sequence diversity and structural geometry. In studies of the features that constitute transactivating functions, acidity has remained one of the most common characteristics observed among native activation domains and activator peptides. RESULTS: We performed a deliberate search of random peptide libraries for peptides capable of conferring transcriptional transactivation on the lexA DNA binding domain. Two libraries, one composed of C-terminal fusions, the other of peptide insertions within the green fluorescent protein structure, were used. We show that (i) peptide sequences other than C-terminal fusions can confer transactivation; (ii) though acidic activator peptides are more common, charge neutral and basic peptides can function as activators; and (iii) peptides as short as 11 amino acids behave in a modular fashion. CONCLUSIONS: These results support the recruitment model of transcriptional activation and, combined with other studies, suggest the possibility of using activator peptides in a variety of applications, including drug development work
COPING SKILLS OF IRANIAN FAMILY CAREGIVERS’ IN CARETAKING OF PATIENTS UNDERGOING HAEMODIALYSIS: A QUALITATIVE STUDY
Coping skills enable caregivers to establish and maintain supportive relationships with the haemodialysis patients they care for. These skills are very important in terms of social support, promotion of mental health and social and family relations. The aim of this study is to investigate the coping skills of Iranian family caregivers as they take care of patients undergoing haemodialysis. Methods: Twenty participants were selected for the study through purposive sampling. The data gathering techniques used for the research were in-depth and unstructured interviews. The researchers used an inductive thematic analysis approach to analyse the data generated from the interviews. Results: Four main themes emerged from the data: help-seeking skills, self-nurturing skills, time management skills and stress management skills. Conclusion: The focus of attention was on the stress management coping skills of the caregivers of haemodialysis patients together with their ability to cope with complex problems. Healthcare providers, by taking into account these skills and strategies of empowerment, can help other caregivers of haemodialysis patients cope with their heavy care conditions and better define their purposes in caretaking
The Accuracy of Plain Radiography in Detection of Traumatic Intrathoracic Injuries
Introduction: Rapid diagnosis of traumatic intrathoracic injuries leads to improvement in patient management. This study was designed to evaluate the diagnostic value of chest radiography (CXR) in comparison to chest computed tomography (CT) scan in diagnosis of traumatic intrathoracic injuries. Methods: Participants of this prospective diagnostic accuracy study included multiple trauma patients over 15 years old with stable vital admitted to emergency department (ED) during one year. The correlation of CXR and CT scan findings in diagnosis of traumatic intrathoracic injuries was evaluated using SPSS 20. Screening characteristics of CXR were calculated with 95% CI. Results: 353 patients with the mean age of 35.2 ± 15.8 were evaluated (78.8% male). Age 16-30 years with 121 (34.2%), motorcycle riders with 104 (29.5%) cases and ISS < 12 with 185 (52.4%) had the highest frequency among patients. Generally, screening performance characteristics of chest in diagnosis of chest traumatic injuries were as follows: sensitivity 50.3 (95% CI: 44.8 – 55.5), specificity 98.9 (95% CI: 99.5 – 99.8), PPV 97.8 (95% CI: 91.5 – 99.6), NPV 66.4 (95% CI: 60.2 – 72.03), PLR 44.5 (95% CI: 11.3 175.3), and NLR 0.5 (95% CI: 0.4 – 0.6). Accuracy of CXR in diagnosis of traumatic intrathoracic injuries was 74.5 (95% CI: 69.6 – 78.9) and its area under the ROC curve was 74.6 (95% CI: 69.3 – 79.8). Conclusion: The screening performance characteristics of CXR in diagnosis of traumatic intrathoracic injuries were higher than 90% in all pathologies except pneumothorax (50.3%). It seems that this matter has a great impact on the general screening characteristics of the test (74.3% accuracy and 50.3%sensitivity). It seems that, plain CXR should be used as an initial screening tool more carefully
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