Introduction & Objective: In growing of the nail of the hallux has been described to an abnormality of the shape of the nail; in stage III of diseases surgical treatment indicated. This study evaluated two methods of treatment: (a) a surgical matricectomy and (b) CHEMICAL MATRISECTOMY.Materials & Methods: In this randomized clinical trial study, 260 patients were seen in a special general surgery clinic, were assessed for severity and duration of symptoms. 130 patients were treated with CHEMICAL MATRISECTOMY and 130 patients were treated with surgical matricectomy those with no history of immunocompremised diseases and diabetes mellitus and with only minor infection were treated by the surgical matricectomy. The nail was nicked and torn down to expose the infected nail fold. The patients were then taught to clean the area, spray it with povidone-iodine dry powder, and pack the nail fold with a twist of cotton wool. Patient; with recurrent or severe in growing toenails were treated by CHEMICAL MATRISECTOMY.Results: The rate of infection in surgical matricectomy in men was less than woman. The recurrence rate in surgical matricectomy was 3.98% and in CHEMICAL MATRISECTOMY was %11.8. The operative time was 13.8 and 8.6 minute in CHEMICAL MATRISECTOMY. The operative cost was less in CHEMICAL MATRISECTOMY.Conclusions: On the whole surgical MATRISECTOMY is a better procedure than CHEMICAL MATRISECTOMY.

The aim of this study was to investigate the effect of using portulaca oleracea as a source of plant antioxidants for feeding fattening male lambs, on carcass traits, meat quality, and oxidative stability. Twenty-one male lambs with an average weight of 24±1.5 kg and 150±15 days old were fed with one of the experimental rations included a diet without portulaca oleracea as control, a diet containing 7.5%, and a diet containing 15% portulaca oleracea, for 84 days. The muscle (Longissimus dorsi) samplewas used to determine pH, CHEMICAL composition, colorimetric properties, and oxidative stability of meat. Meat lipid oxidation was determined after 1, 7, and 30 days of refrigerated storage using thiobarbituric acid (TBARS). The use of portulaca oleracea in diets improved meat color characteristics such as L, chroma, and Hue. The highest ash concentration and the lowest meat moisture were observed in the treatment of 15% portulaca oleracea (P<0.05). Meat pH was the lowest in the first hour after slaughter but did not differ at 24 h. Compared to the control, in both treatment groups feeding the lambs with portulaca significantly reduced the concentration of Malondialdehyde in the meat of the lambs and increased the meat oxidative stability (P<0.05). The results of this experiment showed that feeding portulaca oleracea by improving properties such as color and increasing the meat oxidative stability improves meat quality, which may have lead to an increase in its nutritional value in terms of human health.

To investigate the response of corn to combined application of CHEMICAL fertilizers with rhizobacteria plant growth promoting, an experiment was conducted in 2017 at Research farm of Agricultural and Natural Resources Campus of Tehran University, Karaj, Iran, in a randomized complete block design with four replications. Four nutritional treatments including T1 (Control treatment without applying fertilizer), T2 (Just PGPRs), T3 (Use CHEMICAL fertilizers based on soil test) and T4 (T3 + PGPRs) were considered. According to the results, the highest total dry weight (3.9 kg/m2), crop growth rate (79.8 g.m-2.day-1), net assimilation rate (15.3 g.m-2.day-1) and grain yield (18.2 ton.ha-1) were observed in T4 treatment and T2 treatment produced the highest  leaf area index (5.3), leaf area duration (205.2) and specific leaf weight (78.5 g.m-2) . Also, the lowest value of all traits was observed in in T1 (control) treatment. The results showed that the presence of rhizobacteria plant growth promotioninduction in the corn nutrition program increased the growth and growth indices of the plant. Combined application of CHEMICAL fertilizers with rhizobacteria plant growth promoting resulted in the highest growth and final grain yield of corn.

Background and objectives: One of the major problems in the industrial wastewater treatment plant is sludge volume, which requires to providing economic and environmental solutions. The use of natural compounds is preferable to the CHEMICAL compounds in the sludge treatment process, environmentally. For this reason, experts are trying to find a suitable material for replacement. Yousefi et al (2012) evaluated the efficacy of chitosan natural polyelectrolyte as a coagulant to elimination of water opacity. The results showed that chitosan has little effect on water pH and its efficiency is better in elimination of high opacity.The chitosan is one of the natural materials. The purpose of this study was determine of optimal pH and concentration of the alum, chitosan and early preparations for simultaneous use in a pilot-scale to improve dewatering sludge. Also, the effect of these treatments was measured on turbidity, color, COD of water sludge Filtration.Materials and methods: For this purpose, from determine of filtering time and measuring of moisture content was used for assay of dewatered sludge capabilities. In this regard, 10 percent alum solution were prepared by dissolving 10 g from aluminum sulfate in one liter of distilled water. To prepare of the chitosan solution, 100 mg from chitosan powder is carefully weighed and dissolved by 10ml chloric acid 0.1 M and then its volume was bring up to 100 ml. acidity of aqueous sludge adjustment by sodium hydroxide and sulfuric acid in the range of 4 to 9. Afterward the constant concentration of alum, chitosan and chitosan-chitosan was added. Ml 50 dewatering time was determined by Buchner funnel, filter paper and vacuum device and water content was determined by oven-dry.Results: The results indicated that the optimal pH for alum, chitosan and alum-chitosan is 5, 7 and optimal concentrations 800, 90 and 600-70 ppm, respectively. By applying this treatment in optimal conditions the best treatment to achieve the minimum dewatering time is alum-chitosan treated with pH 7 and 70-600 ppm consumption. Also, the best treatment for reducing color, turbidity and COD of sludge filtered water is treated alum with concentration of 800ppm and pH 5.Conclusion: Dewatering time of the control and treated with alum increased with increase in pH from 4 to 9. Dewatering time in about the samples treated with chitosan, especially alum- chitosan showed less sensitive to pH. So, the alum treatment had little effect on the color and COD at pH=7, whereas the opacity decreased to 24 percent. The chitosan had highest effect on COD and then turbidity and color. Alum-chitosan treatment has a significant impact on turbidity and COD.

Enforcing the law and maintaining order and security is the governments’ top priorities. Police can be claimed to be the first agent for maintaining the public security, so should be prepared to deal with even potential threats.CHEMICALs can become threat to the public security to which police are related in the following situations:1- CHEMICAL warfare;2- Unwanted presence of CHEMICALs in unexpected events;3- CHEMICALs usage in riot control.The present paper tries to have an introductory elaboration on CHEMICALs and aims at explaining the CHEMICALs used as chemo terroristic elements.

Background: Rice is one of the most important agricultural products and main food for more than %25 people in the world. Due to increasing consumption of this product, evaluation of quality and characteristics of cultivated rice in different regions of country is of great importance. Additionally, over the past decades, heavy metals contamination in rice cause to be public concern, thus assessment of heavy metal pollution of rice is necessary. Evaluation the characteristics of rice varieties will allow consumers and producers to prepare rice according to their taste and need. Therefore, this study was conducted to evaluate the amount of lead and cadmium, physicoCHEMICAL properties and cooking quality of champa rice in different regions of Baghmalek, Khuzestan.Materials and Methods: In this study, rice cultivated in different regions of Baghmalek was sampled in three replications and transferred to the laboratory for testing. PhysicoCHEMICAL tests including protein, moisture content, ash, total solid, amylose content and thousand grain weight were evaluated based on national standard of Iran. Cadmium and lead content of rice cultivated in different region of Baghmalek were evaluated. Cooking properties of studied rice including cooking time, water absorption, leakage, gelatinization grade and Elongation of rice were evaluated. The tests were performed in a completely randomized design with SAS software and analyzed by Duncan test at a probability level of 5%.Results: The results of proximate test including (carbohydrate, protein, total solid, ash and moisture) showed that significant difference was between samples cultivated in different region of Baghmalek. In all samples, except for one samples, amylose content were 20-21%. The results of heavy metal evaluation indicated Cd in all samples were in permissible limit but lead content in imported rice and cultivated rice in Sidon and Meydavoud was more than permissible limit. Studied samples with regard to lenght were in medium category and Elongation of rice was in the range of 1.39-1.74. The gelatinization grade of studied samples was in the range of 3.25-4.17. Evaluation of cooking properties including cooking time, water absorption and leakage indicated it was significant difference between studied samples. Thousand grain weight of studied samples had been significant difference and was in the range of 13.07-18.86.Conclusion: In general, selected rice samples from different regions of Baghmalek exhibited a significant difference in physicoCHEMICAL properties. With regard to cooking properties and quality, rice samples had desirable status and were comparable to imported rice. Evaluation of the safety status of studied rice samples suggests that control of cultivated regions is necessary.