in the present work, the interaction of three water soluble porphyrins, tetra (p-trimethyle) ammoniumphenyl porphyrin iodide (tapp) as a cationic porphyrin, tetra sodium meso-tetrakis (p-sulphonatophenyle) porphyrin (tspp) as an anionic porphyrin and manganese tetrakis (p-sulphonato phenyl)porphinato acetate (mntspp) as a metal porphyrin, with dna have been studied by isothermaltitration microc...

The Alzheimer's disease-related protein, tau, aggregates into neurofibrillary tangles when it is hyperphosphorylated. The amino acid sequence included in the third repeat (R3) of the microtubule-binding region is suspected to be the main factor for tau aggregation. Here, we synthesized a 31-residue oligopeptide, corresponding to the R3 region, and characterized its aggregation propensity under ...

We introduce an e-business analytical framework that focuses on transaction flows, including information, physical goods, and services. Within this framework, global e-business involves transaction flows that cross both organizational and national boundaries. Many challenging technology and policy issues arise from this trans-boundary characteristic of global e-business. These issues are analyz...

Recently the distributive equations involving various classes of aggregation operators have aroused widespread attention because of their importance in the theoretic and applied communities of fuzzy set theory. 2-uninorms and semi-t-operators are two special classes of aggregation operators and have been proved to be useful in many areas such as fuzzy decision making, approximate reasoning and ...

the aggregation behavior of anionic cobalt(ii) 4,4′,4ʺ,4‴-tetrasulfonated phthalocyanine, [co(tspc)4-] was studied at its various concentrations and different ionic strengths using optical absorption and resonance light scattering (rls) spectroscopies in 5 mm phosphate buffer, ph 7.0 at 25 °c. the results show no aggregation behavior at concentration range of 5.1 × 10-6-7.5 × 10-5 m. also, the ...

the purpose of this paper was to determine the factors affecting farmers’ satisfaction from water users associations (wuas) in the harran plain-turkey. the data used in this study come from a sample of 378 farmers among 23,204 in the şanlıurfa-harran plain. they were chosen via simple random sampling method and interviewed face to face. sampling was conducted in 52% of the settlements. to analy...

introduction: the aims of the study were to investigate the health-related quality of life (hrqol) in students of shahid sadoughi university of medical sciences (iran) and to identify factors that might have associated with their hrqol. materials & methods: in 2010, 364 students with a cluster sampling method enrolled in the cross- sectional study. hrqol was assessed by using sf-39 questionnair...

background: stroke is a major cause of death and disability in the world and these complications can be decreased by competent emergency care. emergency medical service (ems) transfer half of the stroke patients to hospitals. this study aimed to determine diagnosis of status and transfer time of stroke patients by ems to a main hospital (valiasr) in arak city. materials and methods: this study ...

prioritizing women's health helps achievement of the 4(th) and 5(th) goals of millennium development program. this study aimed to investigate association between social determinants of health and women's health of reproductive age.this population-based cross-sectional study, using multi-stage sampling procedure was conducted on 770, 15 to 49-year-old women residing in any one of the 22 municipa...

background health-related quality of life (hrqol) is an important factor for self-management behaviors of diabetic patients. these behaviors have special importance in preventing complications of diabetes. objectives this study has been conducted to evaluate hrqol of diabetic patients referred to tehran hospitals. patients and methods in this descriptive study patients were selected from diabet...