Increasing the efficiency of growth and survival is one of the important goals of modern aquaculture. For this purpose, with regard to the positive effects of essential oils in the diet, the effects of essential oil (Satureja hortensis L.) was investigated with the aim of improving the growth, blood biochemical and body composition indices of roach fry (Rutilus caspicus) for 60 days. In this study, 360 individuals with an average weight of 2.29±0.07 g were fed with a diet containing 100, 200 and 400 mg per kg of food and control group (without essential oil). The results showed that the highest final weight and percentage of body weight gain, lowest feed conversion rate and especial growth rate, the greatest amount of protein and lowest amount of fat were found in the diet containing 200 mg of essential oil (P

According to other experiments, electromagnetic field is considered as kind of tension that can affect directly or indirectly on plants. Thus, an experiment was conducted as completely randomized design arrangement in a factorial with three factors including 5 plant seeds [crop seeds of safflower (Carthamus tinctorious) cultivar Goldasht and four species of weeds include pigweed (Amaranthus spp.), Portulaca (Portuloca oleracea), wild oat (Avena fatua), and Chenopodium (Chenopodium album)], magnetic field intensity (10 and 20 milli tesla for 4 hours), and seed status (wet and dry) to study the effect of magnetic field on mentioned plants seeds. The results of this experiment showed that magnetic field 10 milli tesla increased germination traits (germination percentage, germination speed, length of root and shoot), weight and length vigor, and seedling dry weight. Magnetic field 20 mili tesla decreased germination parameters in examined plants. Magentic field had lower and higher effect on portuloca and amaranthus seeds in relative to the other plants seeds. Also, application of the magnetic field increased the activity of antioxidant enzymes (catalase, peroxidase and superoxide dismutase) and reduced of malondialdehyde content in all seedlings.

Chitosan (Cs) was extracted from shrimp shell and its derivative forms including N-alkyl (AlkCs) and nanoparticles (CsNPs) were prepared. First, the properties of nanoparticles were determined by dynamic light scattering (DLS) and the morphology of nanoparticles and N-alkylated by scanning electron microscopy (SEM). Then their antibacterial activity was evaluated by the test of minimum inhibitory (MIC) and lethal (MBC) concentration, diffusion on agar by disk, permeability of cell membrane by measurement of cytoplasmic beta-galactosidase release (ONPG). The type of apoptosis cell death was also examined by DAPI staining and changes in cell surface integrity by atomic force microscopy (AFM). The results showed that the nanoparticles are spherical with an average hydrodynamic diameter of 240 nm. N-alkyl had a rough surface structure compared to native chitosan. At the least of MIC (78 μg/ml) and MBC (100 μg/ml) points were observed for CsNPs (P < 0.05). Nanoparticles and N-alkyl of chitosan showed the highest diameter of growth inhibition zone at 1250 concentration compared to other disks (p <0.05). Outer membrane permeability of derivative forms of chitosan showed significant differences with native chitosan and cells of control. DAPI staining test showed higher cell death of chitosan-derived forms. DAPI staining test showed higher cell death of derivative of chitosan. The images obtained from AFM showed a change in the membrane integrity of the treated cells compared to spherical and clustered of control cells. Thus, the antibacterial properties of native chitosan improved by physical and chemical modification.

In banking, customer management and validation are crucial to maintain financial security and organizational stability. A fundamental challenge in this area is the identification of appropriate indicators for validating and ranking customers. Because these customers generally have limited access to financial and credit information and cannot provide guarantors or good credit records, it is very challenging to determine correct and reliable indicators. Also, to score customers, there is a need to determine an appropriate and fair scoring system. This system should be able to place customers in different categories by considering credit and behavioral criteria and assigning them appropriate points based on their performance. In addition, there is a need to develop methods for evaluating and monitoring customers over time. This research aims to identify the indicators of validation and ranking of customers in micro-lending in Iran’s Middle East Bank.

This research is applied-contextual in terms of purpose and exploratory in terms of method. The statistical population of this research includes all retail banking clients of Digital Middle East Bank who seek low-interest loans at an annual rate of 2%, with a penalty rate of 6%. Statistical methods in this study were carried out in two phases: descriptive and inferential statistics. In the descriptive statistics section, various personality factors including age, gender, education, occupation, current debt status within the banking system, bounced checks history, money laundering records, bank account balance, transaction history, geographic location (residence and workplace), mobile phone model and operating system, as well as credit rating obtained from Iran's credit rating consulting company, were analyzed and presented using tables and graphs. Naive Bayes, Meta, Attribute Selected Classifier, and j48 algorithms were implemented and WEKA software was used to classify criteria and create patterns. Also, to evaluate the validation model and ranking of customers of unsupported microlending, the T-test was used at the significance level of 0.25.

The findings indicate that when assessing a loan application, the following indicators should be considered to determine the applicant's ability to repay the loan or provide suitable collateral. Applicants demonstrating most or all of the following indicators are more likely to meet loan repayment requirements or offer adequate collateral: First, the person's previous loans have been settled 30 days and 60 days after the loan maturity date in the granting bank. Second, the person's previous loans have been settled in other banks. Third, the higher the requested loan amount, the better. Fourth, the person's age is above middle age. Fifth, the person's degree is not a bachelor's degree, diploma, or sub-diploma. Sixth, the person's score is above 40. Seventh, the operating system of the person's phone is not Android. Eighth, the person's phone model is not SAMSUNG or XIAOMI. Ninth, if the investigations related to the person's money laundering status are negative, then preferably, and if necessary, the loan of that person can be approved.

In this approach (unsupported micro-lending), banks should extend loans to individuals only after acquiring comprehensive knowledge about them before initiating any new credit arrangement. It is vital to gather the required data and ensure their creditworthiness and positive reputation. Banks need to obtain reliable and detailed information about borrowers, as extending facilities for maximum profitability also exposes the bank to associated risks.