carvacrol is one of the main components of the eo of some labiatae (laminaceae) members like oregano, thyme and savory. carvacrol has a lot of health benefits for example, antibacterial, and antioxidant activity.we synthesized some silicon derivatives of carvacrol, and characterized them by standard methods. then the monomer of dimethylvinylsilyl carvacrol was synthesized. copolymer of this mon...

objective(s): the introduction of nucleic acids into cells for therapeutic objectives is significantly hindered by the size and charge of these molecules and therefore requires efficient vectors that assist cellular uptake. for several years great efforts have been devoted to the study of development of recombinant vectors based on biological domains with potential applications in gene therapy....

abstract among synthetic carriers, dendrimers with the more flexible structure have attracted a great deal of researchers' attention in the field of gene delivery. followed by the promising results upon hydrophobic modification on polymeric structures in our laboratory, alkylcarboxylated poly (propylenimine)-based carriers were synthesized by nucleophilic substitution of amines with alkyl moiet...

ba ck g r oun d  & aim: childbirth related fear (crf) causes pregnant women  to select cesarean section (cs) without a medical reason. the purpose of this study was to determine reasons for delivery related fear and associated factors in pregnant women. methods & materials: a descriptive, cross-sectional study was conducted on 315 pregnant wom- en who were in the last trimester. participants we...

the problem of designing a set of routes with minimum cost to serve a collection of customers with a fleet of vehicles is a fundamental challenge when the number of customers to be dropped or picked up is not known during the planning horizon. the purpose of this paper is to develop a vehicle routing problem (vrp) model that addresses stochastic simultaneous pickup and delivery in the urban pub...

patient noncompliance to current tuberculosis (tb) therapy owing to multidrug administration daily leads to treatment failure and emergence of multidrug resistant and extensively drug resistant tb. to avoid the daily dosing, application of nanotechnology is the only viable solution by virtue of sustained release of drugs. other potential advantages of the system include the possibility of selec...

recent advances in nanotechnology have rapidly developed new therapeutic and diagnostic concepts in all aspects of medicine. magnetic nanoparticles (mnps) can be simultaneously functionalized and guided by a magnetic field, thus providing promising tools for several biomedical applications. mnps contrast agents at low concentrations offer the potential to significantly improve existing methods o...

background: to assess the effect of method of delivery on women's mental health to improve of health status. methods: eleven hundred healthy women who had recently either normal vaginal delivery (nvd) or cesarean section (cs) were studied 6 week after delivery in 2005. the data were collected with using the 36-items short-form (sf-36) questionnaire by interviewing method. spss software version ...

background: according to the world health organization, the acceptable range for cesarean delivery is only 10-15% of the total delivery. increased  rate of cesarean can increase maternal mortality rate. statistics from provinces in iran shows that the rate of unnecessary caesareans is growing in the country. methods: this qualitative research evaluated the comments of 20 mothers who had caesare...

abstract background: noorabad-e-mamasani has the highest rate of delivery by cesarean section in fars province. cesarean section, as a large surgical operation, is accompanied with some side effects that sometimes get very dangerous and rarely lethal. the present investigation aims to determine the effects of a health belief model-based educational intervention on decreasing cesarean sections a...