فهرست مطالب reza shakeri

The hidden curriculum is actually a process in order to observe the education, teaching and training of the school is a text that must be revealed in interpretation or hidden meanings. The present study was conducted with the aim of discovering and presenting the conceptual model of the hidden curriculum in secondary schools of Sanandaj city. The research method of this study is a combined method using qualitative-quantitative methods. In the qualitative method, a semi-structured interview was used, and in the quantitative method, a questionnaire was used to complete the qualitative information. The results indicated a significant effect of independent variables on the hidden curriculum. In this regard, the effect of strategies on the hidden curriculum of secondary schools in Sanandaj city has the highest coefficient of influence, and after that, the foundation for the formation of the hidden curriculum is in the second place. There is a type of factor analysis in the model, the effect of all of which is significant, and this means that the indicators of the main research variables have been able to explain these variables well.

The aim of this study was to investigate the relationship between vegetation and soil factors on the shores of Bandar Deylam located in the Persian Gulf. This area is part of the Gulf-Omani vegetation area and has received less attention.

Plant types were distinguished by physiognomic methods and vegetation sampling was done in 120 plots (2m2) by calculating of vegetation cover. Two ordination techniques including de-trended correspondence analysis (DCA) and canonical correspondence analysis (CCA) were applied to examine the relationships between vegetation and edaphic factors.

Six plant types according to dominant species were Halocnemum strobilaceum, Halocnemum strobilaceum - Plantago cylindrica, Halocnemum strobilaceum - Aeluropus lagopoides near ebb and flow region of sea and Gymnocarpos decander - Platychaete mucronifolia, Halothamnus iranicus - Astragalus fasciculifolius, Arthrocnemum macrostachyum far from sea cost. In each plant type soil sampling was done by digging five profiles randomly. Finally, 66 species representing 22 families were collected. The largest families were Poaceae, Asteraceae, Chenopoiaceae, and Papilionaceae, representing 16.7%, 13.6%, 10.6% and 10.6% of the total flora, respectively. Vegetation was classified using two-way indicator species analysis (TWINSPAN), thereby producing four vegetation groups that were linked to habitat types.

According to results total variance in vegetation was 6.11 and the first two canonical axes accounted for 34.9% of the community-soil factor relationship among plant groups. As identified via CCA, the main gradients were Co3/HCo3 and EC, Gypsum and elevation that associated with soil texture remarkably.

The growth and development of the aquaculture industry in recent decades has also led to the development of the aquatic feed industry. High-quality animal protein, lipids and other nutrients are essential for intensive aquaculture. Fish meal is used as an essential ingredient in fish nutrition that will not be available in sufficient quantities in the future. Increasing fishing pressure has reduced marine fish stocks; Therefore, reducing the dependence of aquaculture on marine resources in order to develop the sustainability of this industry in the future is essential. Therefore, using plant protein sources such as cereals and legumes in aquatic feed can be effective in achievng this goal. However, plant foods can provide a natural and suitable substrate for the growth of fungi. Crops may be infected with the fungus during harvest or storage. Under adverse environmental conditions, at temperatures above 27 ° C and more than 60% humidity and lack of proper ventilation, fungi grow rapidly and can endanger aquatic health by producing mycotoxins. In addition, the accumulation of mycotoxins in the edible tissue of fish can be dangerous to consumers' health. Therefore, it is necessary to know the different types of mycotoxins and understand how they are transferred from food to farmed aquatic animals and ultimately to human consumers. Aflatoxins, sterigmatocystin, ochratoxin, trichotoxins, zearalenone, and fumonisins are the most important known mycotoxins in aquatic feed. These toxins can cause many pathological damages to aquatic animals, such as reduced growth performance, changes in haematological parameters, histological damages, biochemical parameters, oxidative stress and genetic damages. Therefore, in this article, we introduce these compounds and show their effects on aquatic health.

Approximately 10% of plastic products enter the environment annually in the form of plastic waste. Plastic trash is usually broken down into smaller pieces by physical, chemical, and ultraviolet processes and enters aquatic ecosystems through surface runoff. Therefore, in recent years, the accumulation of plastic waste in aquatic ecosystems has become a global environmental problem. Microplastics and Nano-plastics may enter the aquatic body through feed intake or waterborne pathways. Microplastics (MPs) may enter the body through the gastrointestinal tract or gills and then the circulatory system and be distributed to all parts of the body. Therefore, exposure to MPs may lead to disruption of biochemical homeostasis and bioaccumulation. Since, hematological and biochemical parameters of aquatic animals are a suitable indicator for evaluating aquatic health in environmental toxicology studies. Therefor, this study aimed to review the mechanism of transmission of MPs to aquatic organisms, bioaccumulation potential, and changes in hematological and biochemical parameters.

The purpose of this study was to investigate the role of efficiency in the transmission of climate and price shocks on farmers' behavior. The hypothesis of this study is that efficient farmers in the agricultural sector are more resilient and less vulnerable to climate and price shocks. In order to test this hypothesis, data envelopment analysis approach and positive math planning model were used. Data needed for this purpose were collected from the Agricultural Jihad questionnaires in Razan township, north of Hamedan province. The findings indicate that, due to the effects of climate change, farmers' groups are less effective than inefficient farmers and have more resistance. Also, farmers are less effective than price changes, which reflect the stable situation of this group of farmers in relation to these shocks. Therefore, it can be inferred that moving towards a productive boundary can be a means to reduce the impact of climatic hazards, markets and fluctuations in agricultural production in the studied area.

Familial hypercholesterolemia (FH) is a hereditary dislipidemia. Patients present with extremely high level of low-density lipoprotein cholesterol (LDL-C), which is due to mutation in the gene of LDL receptor. Homozygous patients (HoFH) whose incidence is 1 in 1.000.000 are at high risk of premature aortic valve stenosis, and coronary artery atherosclerosis. In homozygous individuals cardiovascular complications can occur in childhood. The current study presented a 12-y-old boy with HoFH who suffered from mild aortic stenosis, and right coronary artery atherosclerosis. The patient underwent a successful coronary artery stenting, and was discharged with pharmacologic therapy.

This study aimed to investigate diverse structure of pulmonary blood vessels in patients with combined pulmonary atresia and ventricular septal defect and examine the effect on surgery result.

This cohort retrospective study was conducted on admittances to Tehran and Sari Hospitals at 2005-2016 for pulmonary atresia with ventricular septal defect (PA-VSD) with pulmonary artery (PA) anatomical variation. Diagnosis of pulmonary blood vessels in patients with PA-VSD was based on the results of CT Angiography (CTA), MRI, or cardioangiography examinations. Patients were followed up clinically by means of imaging in the course of initial repair, pre-definitive surgery preparation, and post-operative stages. All data sets were analyzed using Stata software version 13.0.

Abundancy of PA-VSD classes A, B, and C was 34 (37.8%), 51 (56.7%), and 5 (5.6%) individuals respectively, while mean age and standard deviation of subjects for each of the said groups was 166.5±75.6, 135.79±5.3, and 108.4±152 months respectively. 38 (42.2%) were 1-year or younger at the time of initial surgery. As regards between-class age distribution, 18 (52.9%) individuals in group A, 20 (39.2%) individuals in group B, and the entire 5 individuals in group C were collectively above the age of 1 years old.

In view of the recent studies and the present investigation involving 90 patients with PA-VSD, it is easy to apprehend the large-scale applicability of complete-repair surgical interventions for patients suffering from this disease. This holds true specifically for class A patients who enjoy a longer lifespan and a more favorable prognosis.