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in this review, we discuss the use of a variety of 3-d models (particularly 3-d skin, lung, breast and endothelial) in radiobiological research and highlight the differences in responses compared to 2-d culturing conditions (monolayers). we review the characteristics of existing 3-d models and aim to point out the substantial advantages 3-d cultures provide for modern radiobiology. in particula...
the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...
Background & Aim: Intense and long-standing problems in burn centers in Tehran have led nurses to burnout. This phenomenon has provoked serious responses and has put the nurses, patients and the organization under pressure. The challenge for managers and nursing executives is to understand the factors which would reduce or increase the nurses’ responses to burnout and develop delivery syste...
Background & aim: In some situations in quantitative or qualitative research, complementary tools would be of great help in data collection. Vignette is a data collection tool, which has been used for over 50 years in different disciplines including health sciences. Nonetheless, there is a paucity of information regarding this method. With this background in mind, the ...
results the results of ifn-γ, il-4 production against antigens, epitopes, and recombinant catalase by t-cells were compared for better understanding of epitope efficiency. conclusions the current research demonstrated that epitope sequence stimulates cellular immune responses effectively. in addition, increased safety and potency as well as a reduction in time and cost were advantages of this m...
this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...
the present experiment was undertaken to study the effect of different dosages of β-glucan on the growth, survival and physiological responses in juvenile striped catfish ( pangasianodon hypophthalmus ). over nine weeks of feeding fish with a diet containing 0, 0.5, 1 and 2% β-glucan (as control, g1, g2 and g3 group, respectively), some blood parameters such as serum lysozyme activity, total pr...
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