فهرست مطالب alireza rasouli

 Trust between patients and Emergency Medical Technicians (EMTs) is crucial for effective pre-hospital nursing care.

 This study aimed to assess the trust levels of patients in emergency medical technicians, associated factors, and resulting outcomes.

 This cross-sectional study was conducted on 400 patients transported by EMTs to the emergency departments of teaching hospitals in Zanjan City during 2023-2024. Data collection tools included demographic questionnaires, the Patient Trust Questionnaire (PTQ), a Visual Analog Pain Scale (VAS-P), and a Visual Analog Scale for Anxiety (VAS-A). Data were analyzed using SPSS version 24 software. Pearson's correlation, multiple regression, and simple linear regression statistical tests were conducted, with a significance level of less than 0.05.

 Patients had a mean (SD) trust level of 4.11 (0.92) in EMTs. Patients’ trust could be predicted by factors such as the speed of EMTs’ performance, reason for calling EMS, place of residence, and education (R=0.42, Adjusted R Square=0.17). The trust variable predicted anxiety, in patients. (p<0.05).

 Trust in pre-hospital care helps manage patients’ mental conditions. EMTs play a crucial role in building patients’ trust during emergencies.

Recently, laccase has drawn the attention of researchers and manufacturers due to its various applications in different industries such as the pulp industry, bioremediation, food industry, and medical product industry. This eco-friendly enzyme is one of the leading enzymes of the multicopper oxidase family that has shown incredible ability to remove pollutants like antibiotics from wastewater and nature. This review aims to introduce the laccase enzyme and its history, explain its chemical features, and describe its constituent resources. Finally, this paper discusses its applications, especially the removal of antibiotics from wastewater with the help of syringaldehyde (SA) and hydroxybenzotriazole (HBT). In this research, basic and comprehensive information about laccase enzyme and their applications has been presented by reviewing numerous articles. These articles were searched using relevant keywords. Moreover, schematic diagrams, pictures, and tables were used to describe the data in the paper. Laccase treatment with SA in an enzymatic membrane reactor is one of the feasible solutions for removing antibiotics from wastewater, which showed the elimination of 32 different antibiotics. Laccase is a good choice for industrial applications and decontamination of antibiotics. This enzyme shows tolerance to industrial thermal conditions, hence its broad applications in the decolorization of textile dye and paper industries.

Due to the special importance of the future of sexual education of children and adolescents, as well as the significant influence of the audience on story books, the pathology of sexual education in humorous translation story books was considered. The present study was conducted with a normative futures research approach and a qualitative content analysis method. The statistical population also identified the translated storybooks by Hopa Publications, and seven volumes of the collection of short stories "Stories with Parents and Tom Gates", which were published in 1398, were purposefully selected. The criterion of description in the analysis of selected books, based on the components of sexual education extracted in the report of Saeedi Rezvani (2017) was considered as "Development of a guide to the curriculum of primary education". The context unit, paragraph and registration unit were also included in the content of each paragraph (texts or images showing harm in one of the sub-components of sex education). A total of 1997 pages were examined and from the analysis of the data, 25 subcategories were discovered, which were classified into four categories with the titles of "worthless parents", "descent of adults", "sexual norm-breaking" and "the spirit of immorality". The findings indicate that the audience of children and adolescents, by reading these storybooks, learn teachings contrary to the direction of Islamic sex education and these teachings will bring many challenges in the future. In the absence of foresight and the continuation of the current trend, the future of the sexual behavior of the future generation is expected to be even more endangered.

Background & Aims of the Study:

 This study aimed to investigate, for the first time, the ability of single-cell oil production from low-cost carbon sources using Kocuria Y205 native Iranian bacterial isolates from the soil.

Whey and lignocellulose compounds were used as carbon sources and yeast extract as a nitrogen source. Also, the isolated cultivation was done on Mineral Salts Medium (MSM) culture media. Molecular analysis based on 16s rRNA gene sequence was performed to identify isolated. Fourier-Transform Infrared Spectroscopy (FTIR) analysis was used to confirm the presence of carbon groups. GC analysis was also used to identify the fatty acids Sudan black. Finally, a Transmission Electron Microscopy (TEM) electron microscopy image was taken to view the stored lipid granule.

The highest rate of lipid production among all carbon sources in different periods of cultivation by whey was 24.57% after 48 hours, and also, the highest rate of lipid production for lignocellulose compounds was 15.29% after 48 hours.

This study shows that the newly isolated Kocuria Y 205 has excellent ability to use whey and lignocellulose compounds as waste containing carbon resources for the growth, production, and storage of microbial oil. It can be used in industrial applications, too.

Microorganisms that store lipids due to nutrient deficiencies (especially nitrogen) produce microbial oils following inhibition of growth. Based on the structure of fatty acids, microbial oils have industrial applications. The main purpose of this study, the first in Iran, was to evaluate the production of single-cell oil from Rhodococcus erythropolis PTCC 1767 using low-cost materials.

In the present study, Rhodococcus erythropolis PTCC 1767 as bacterial strain, whey, wheat straw, glucose, and glycerol were used for carbon sources and yeast extract was used for the nitrogen source. The bacterial strain was cultured in the MSM medium. FTIR analysis was performed to confirm the presence of carbon groups, GC analysis for identifying fatty acids, and Sudan black staining and imaging with a Transmission Electron Microscope (TEM) for observing the lipid granules stored inside the cell.

The highest lipid production in the presence of carbon sources was related to whey in 96 hours with 23.22% and the maximum lipid production was obtained using wheat straw in 72 hours with 20%.

The results of the present study demonstrated that Rhodococcus strains have the ability of bioconversion of low-cost carbon sources wheat straw and the whey to microbial oils and this can serve as a platform for eco-friendly biotechnological processes.

In an uncoupled analysis, blast loads can be evaluated by empirical models, and then applied to the structure in a separate response analysis. The literature includes a variety of empirical models. However, the potentials of these models may not be fully realized due to a wide variation that may exist in their outcomes, particularly at detonations with a relatively close standoff distances from the target. As such, the selection of an appropriate model should be made with special considerations. This paper investigates the efficiency of various empirical models in blast analysis of the RC-slabs that are subjected to near-field air-detonations. The blast loads resulted by the empirical models are employed in a set of nonlinear FEA-runs. Due to the proximity of detonations, the distribution of blast-overpressure across the concrete slab at any instant in time is nonuniform. A simplified approach that accounts for this nonuniform distribution has been developed and verified in this study. To examine the effectiveness of the empirical models, the FEA-results are compared with the observations made in a set of previous experimental studies. Based on this comparative study, the most effective empirical model is identified, and remarks are made on the performance of the other models.