The Ramsey number of loose paths in 3-uniform hypergraphs

Recently, asymptotic values of 2-color Ramsey numbers for loose cycles and also loose paths were determined. Here we determine the 2-color Ramsey number of 3-uniform loose paths when one of the paths is significantly larger than the other: for every $n\geq \Big\lfloor\frac{5m}{4}\Big\rfloor$, we show that $$R(\mathcal{P}^3_n,\mathcal{P}^3_m)=2n+\Big\lfloor\frac{m+1}{2}\Big\rfloor.$

Comparative Study of Modified Chlorhexidine Toxicity, Chlorhexidine and Sodium Hypochlorite on Gingival Fibroblast Cells L929 In Vitro

One obvious and good properties of sodium hypochlorite is capacity of tissue solubility which has effective role in direct root canal cleaning, necrotic tissues and root canal system complexity. Chlorhexidine, in spite of all advantages that have than sodium hypochlorite, lacks this property. Superficial active factors or surfactants are materials that are used extensively as irritant, emulsifier, disinfection and solution additive. Surfactants are different types including benzalkonium chloride 4% and sodium lauryl Sulfate 2%. In this research, sodium dodecyl sulfate was used. Gingival fibroblast cells are kept in 25 cm2 flasks in 370C temperature. And then they are cultivated in Gibco Dulbecco’s Modified Eagle Medium (DMEM). 96 wells plates with 50 microliter are filled with growth medium with 2000 fibroblast and it is placed in incubator for 24 hours. After 24 hours, growth medium is thrown away and all plates are washed with phosphate buffered saline (PBS). All experimental steps are performed for preventing samples being contaminated under hood. The experiment was carried out as triplicate (3 wells cell). Results: In order to perform a research, Tukey-test and Duncan test were applied for explaining research variable. Results: toxicity rate of under tested solutions on fibroblast cells for group 1-4 are respectively (right to left) 13.75, 51.75, 20.75 and 51.75. Results of comparing means in four groups in landa level 4 indicated that groups are not significantly different in toxicity rate. results of this research indicated that this mixture can be used as an appropriate candidate for replacing sodium hypochlorite based on its disadvantages which needs to be studied more

Detection of Epstein Barr Virus by Chromogenic In Situ Hybridization in cases of extra-hepatic biliary atresia

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Priority Setting for Improvement of Cervical Cancer Prevention in Iran

Background: Cervical cancer is the fourth most common cancer among women worldwide. Organized cervical screening and vaccination against human papilloma virus (HPV) have been successful interventions for prevention of invasive cervical cancer (ICC). Because of cultural and religious considerations, ICC has low incidence in Iran and many other Muslim countries. There is no organized cervical screening in these countries. Therefore, ICC is usually diagnosed in advanced stages with poor prognosis in these countries. We performed a priority setting exercise and suggested priorities for prevention of ICC in this setting. Methods: We invited experts and researchers to a workshop and asked them to list important suggestions for ICC prevention in Iran. After merging similar items and removing the duplicates, we asked the experts to rank the list of suggested items. We used a strategy grid and Go-zone analysis to determine final list of priorities for ICC prevention in Iran. Results: From 26 final items suggested as priorities for prevention of ICC, the most important priorities were developing national guidelines for cervical screening and quality control protocol for patient follow-up and management of precancerous lesions. In addition, we emphasized considering insurance coverage for cervical screening, public awareness, and research priorities, and establishment of a cervical screening registry. Conclusion: A comprehensive approach and implementation of organized cervical screening program is necessary for prevention of ICC in Iran and other low incidence Muslim countries. Because of high cost for vaccination and low incidence of cervical cancer, we do not recommend HPV vaccination for the time being in Iran