نشریه بیولوژی کاربردی
سال یازدهم شماره 3 (پیاپی 43، پاییز 1400)

Di-acetylated chitin derivative of is Chitosan that there is a biologically degradable cationic polymers; This natural polymer in the past to recover heavy metals from sea water and industrial water and diesel oil were used. Present of Metals in the oil is importance because of their impact. Some metals, such as copper and nickel as the catalyst and reducing oxidative reactions are known thermal stability of oil and therefore very little oil concentration of these metals can tolerate. The purpose of this research was to investigate the removal of heavy metals, iron and copper from soybean oil use to Commercial chitosan and is Best of Chitosan concentration and the reaction temperature. Removal of metals by adding Chitosan crude soybean oil at temperatures of 25, 45, 55, and 65 ° C act for 1 h and Measuring the atomic absorption efficiency of Chitosan most suitable reaction temperature and concentration were investigated. Removal efficiency is dependent on several factors such as the amount of chitosan , the temperature and time. The results of obtained can use to chitosan for the removal of heavy metals from edible oil and prevent oil degradation during production and storage According to its low cost relative to the types of adsorbents. According to the results, it was observed that increasing the chitosan concentration increased metal removal rates .

Echinops polygamous from Saveh and E. tenuisecta from Sarpol-e Zahab are two medicinal plants belong to the Asteraceae family. The aim of this study was to compare two medicinal plants of Echinops in terms of morphology, anatomical structure, manna trehalo production, seed germination and phenol content. Methods and materials: Morphology by examining the appearance characteristics, anatomical structure by fixing the plant organs, cutting and staining, manna by counting the Larinus cocoons, seed force germination percent, and phenol by Folin Siocaltu's method were studied.

Blue spherical inflorescence, prickly leaves and manna were common in both. Seed germination force of E. polygamous was better. Phenol was abundant in the shoots and inflorescences. The stems of E. polygamous have fallen to the ground and it had dense inflorescences, larger and thicker leaves, and more mana. E. tenuisecta stems were erect with smaller and thinner leaves. The extensive sclerenchyma, in the stem and root of both were observed. Vascular cambium was not observed in the stem. The vascular bundles of stems of E. polygamous were located in a circle and bundles of E. tenuisecta were located in two circle. Root cork cambium was continuous, but vascular cambium was interrupted.

E. polygamous was better in terms of having thicker, larger leaves and fewer spines for insect larvae feeding and forming cocoons.

In this research, a study was performed on several pomegranate populations from different cities of Iran, including: Qom, Saveh, Khorasan and Yazd (Qajagh poand black seed of Qom, Yazd Mikhosh and Khorasan glass pomegranate). For this purpose, characteristics such as the amount and type of compounds in the juice, antioxidant activity and evaluation of the active ingredients of tannins and flavonoids were considered.

In order to extract the juice, water and dried peel of the plant were drenched separately in water and methanol. The solvent was separated using a rotary and after drying the extract by vacuum oven, the samples were used in the antioxidant test of free radical reduction methods (DPPH).

The results of antioxidant test showed that sweet-and-sour Saveh pomegranate peel extract has the highest antioxidant effect in methanol solvent. Tannin test was performed on black seeds of Qom and Yazd. So, it was found that black seed pomegranate of Qom has the highest amount of tannin compounds. Based on the results of flavonoid test, black seed pomegranate had the highest amount. Finally, the chemical composition of black seed juice in Qom province was identified.

These results showed that Qom black seed pomegranate has large amounts of natural sugars. Also, by comparing the amount of tannin in the samples, it was observed that the total amount in the sample of Yazd pomegranate is more than Qom black seed, but the amount of flavonoids in Qom black seed is more than Yazd pomegranate.

Intrinsic resistance of Enterococci to vancomycin and transmission to other gram-positive bacteria is a matter of concern. Therefore, the aim of this study was to identify vancomycin resistance genes in patients-isolated Enterococci.

A total of 100 fecal samples were collected from patients referred to health centers in Qom province in 2018. Microbiological tests were used to identify Enterococci. The pattern of antibiotic resistance was investigated by disk diffusion method. PCR was used to detect vanA, vanB, and vanC genes in Enterococci.

60 Enterococci (60%) were isolated in this study. The highest antibiotic resistance was related to the ciprofloxacin (66.6%). The highest and lowest frequencies were for the vanC (15%) and vanA (5%) genes, respectively.

In the present study, resistance to vancomycin and other antibiotics, and the presence of van genes in resistant strains were observed. It is necessary to control and prevent the spread of enterococci in hospital and non-hospital settings.

Life cycle psychology literature and family sociology suggest that fatherhood accelerates the personal and personality development of men. Becoming a father is one of the most profound experiences in a man's life that has a significant impact on his value system. Children's health increases when they have social, emotional and economic support from both parents. This study seemed necessary because there were challenges in our knowledge of fathers' involvement in the paternal role. The aim of this study was to determine the level of participation of Qomi fathers in paternal role and related factors in 2015.

The research was applied, descriptive and analytical and the data were collected using a questionnaire. The Sample size included 226 fathers who were randomly selected in public maternity hospitals in Qom. The information related to this study was described after entering the SPSS software using central indicators and dispersion and statistical tables of the target population. In the data analysis section, Pearson test and analysis of variance were used.

The results showed a high mean of participation. There was a significant relationship between participation with age, level of education, birth rate of children and wanted or unwanted pregnancy. There was no relationship between participation with infant gender, economic status, place of birth, smoking, place of residence, ethnicity and occupation.

There seems to be a long way to go before men become a real conscious and contributing father.

The aim of this study was to investigate the effect of using Bextra syrup in children with colds, with an average age of 1-10 years.

The present study is a clinical trial conducted by retrospective Cohort test. This study was performed on 100 children with an average age of 1-10 years who referred to pediatric clinics in Qom in 1397-1398 due to colds.

The findings of this study showed that the improvement rate of cold symptoms in the group using Bextra syrup was significantly better than the control group - who did not use Bextra syrup, and the duration of these symptoms was less than 3 days. In the control group, the symptoms were significantly stable until the third day of the disease. This study revealed that the symptoms of colds in people consuming Bextra syrup containing propolis extract were able to accelerate the improvement of cold symptoms.

The results of this study showed the effect of using Bextra drug containing propolis extract of honey wax in accelerating the recovery of colds. In the control group, which did not use Bextra syrup, except for a small number of all children, they showed cold symptoms such as cough and runny nose, nasal congestion and fever until the third day of follow-up, and by the third day, their cold disease had not improved.