8 research outputs found

    The Norm Estimates of Pre-Schwarzian Derivatives of Spirallike Functions and Uniformly Convex alphaalpha-spirallike Functions

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    For a constant alphainleft(fracpi2,fracpi2right)alphain left(-frac{pi}{2},frac{pi}{2}right),  we definea  subclass of the spirallike functions, SPp(alpha)SP_{p}(alpha), the setof all functions finmathcalAfin mathcal{A}[releft{e^{-ialpha}frac{zf'(z)}{f(z)}right}geqleft|frac{zf'(z)}{f(z)}-1right|.]In  the present paper, we shall give the estimate of the norm of the pre-Schwarzian derivative  mathrmTf=f/fmathrm{T}_f=f''/f' where mathrmTf=supzinDelta(1z2)mathrmTf(z)|mathrm{T}_f|=sup_{zin Delta} (1-|z|^2)|mathrm{T}_f(z)| for the functions in  SPp(alpha)SP_{p}(alpha)

    Treatment of Hypertrophic Scar in Human with Autologous Transplantation of Cultured Keratinocytes and Fibroblasts along with Fibrin Glue

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    Objective: Hypertrophic scar involves excessive amounts of collagen in dermal layer and may be painful. Nowadays, we can’t be sure about effectiveness of procedure for hypertrophic scar management. The application of stem cells with natural scaffold has been the best option for treatment of burn wounds and skin defect, in recent decades. Fibrin glue (FG) was among the first of the natural biomaterials applied to enhance skin deformity in burn patients. This study aimed to identify an efficient, minimally invasive and economical transplantation procedure using novel FG from human cord blood for treatment of hypertrophic scar and regulation collagen synthesis. Materials and Methods: In this case series study, eight patients were selected with hypertrophic scar due to full-thickness burns. Human keratinocytes and fibroblasts derived from adult skin donors were isolated and cultured. They were tested for the expression of cytokeratin 14 and vimentin using immunocytochemistry. FG was prepared from pooled cord blood. Hypertrophic scars were extensively excised then grafted by simply placing the sheet of FG containing autologous fibroblast and keratinocytes. Histological analyses were performed using Hematoxylin and eosin (H&E) and Masson’s Trichrome (MT) staining of the biopsies after 8 weeks. Results: Cultured keratinocytes showed a high level of cytokeratin 14 expression and also fibroblasts showed a high level of vimentin. Histological analyses of skin biopsies after 8 weeks of transplantation revealed re-epithelialization with reduction of hypertrophic scars in 2 patients. Conclusion: These results suggest may be the use of FG from cord blood, which is not more efficient than previous biological transporters and increasing hypertrophic scar relapse, but could lead to decrease pain rate

    Long-Term Follow-up of Autologous Fibroblast Transplantation for Facial Contour Deformities, A Non-Randomized Phase IIa Clinical Trial

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    Objective: Recently, the promising potential of fibroblast transplantation has become a novel modality for skin rejuvenation. We investigated the long-term safety and efficacy of autologous fibroblast transplantation for participants with mild to severe facial contour deformities. Materials and Methods: In this open-label, single-arm phase IIa clinical trial, a total of 57 participants with wrinkles (n=37, 132 treatment sites) or acne scars (n=20, 36 treatment sites) who had an evaluator’s assessment score of at least 2 out 7 (based on a standard photo-guide scoring) received 3 injections of autologous cultured fibroblasts administered at 4-6 week intervals. Efficacy evaluations were performed at 2, 6, 12, and 24 months after the final injection based on evaluator and patient’s assessment scores. Results: Our study showed a mean improvement of 2 scores in the wrinkle and acne scar treatment sites. At sixth months after transplantation, 90.1% of the wrinkle sites and 86.1% of the acne scar sites showed at least a one grade improvement on evaluator assessments. We also observed at least a 2-grade improvement in 56.1% of the wrinkle sites and 63.9% of the acne scar sites. A total of 70.5% of wrinkle sites and 72.2% of acne scar sites were scored as good or excellent on patient assessments. The efficacy outcomes remained stable up to 24-month. We did not observe any serious adverse events during the study. Conclusion: These results have shown that autologous fibroblast transplantation could be a promising remodeling modality with long-term corrective ability and minimal adverse events (Registration Number: NCT01115634)

    On the Strong Starlikeness of the Bernardi Transform

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    Many papers concern both the starlikeness and the convexity of Bernardi integral operator. Using the Nunokawa’s Lemma, we want to determine conditions for the strong starlikeness of the Bernardi transform of normalized analytic functions g, such that |arg{g′(z)}| <απ2 in the open unit disk Δ where 0<α<2. Our results include the results of Mocanu, Nunokawa and others on the Libera transform

    Neighborhood Properties for k-Uniformly Starlike Functions

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    In this note, we define the class Sp(; k) and introduce and investigatecoefficient estimates, neighborhood property for functions in theclass Sp(; k). In addition we provide conditions such that the confluenthypergeometric function, belongs to Sp(; k

    On the Strong Starlikeness of the Bernardi Transform

    No full text
    Many papers concern both the starlikeness and the convexity of Bernardi integral operator. Using the Nunokawa’s Lemma, we want to determine conditions for the strong starlikeness of the Bernardi transform of normalized analytic functions g, such that |arg{g′(z)}| απ2 in the open unit disk Δ where 0α2. Our results include the results of Mocanu, Nunokawa and others on the Libera transform

    The Effect of Educational Intervention based on BASNEF Model on Decreasing the Cesarean Section Rate among Pregnant Women in Khomain County

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    Objective:Over the past two decades, the incidence of cesarean section in most countries has increased. Cesarean section increases the risk of death and complications in the mother and fetus. Educational interventions based on behavior change models can play an important role in reduce the rate of cesarean section. The aim of our study is investigation the effect of educational intervention based on BASNEF Model on decreasing of cesarean section rate among pregnant women in Khomain County, from June to November 2013. Materials and methods:In this interventional study, 140 nulliparous women who were in their last trimester of pregnancy were randomly allocated to case and control groups. Data gathering instrument was a questionnaire based on BASNEF framework. Data were analyzed by SPSS14 software. Results:The scores of knowledge, attitudes, subjective norms, and enabling factors in the intervention group than the control group showed a significant difference (p <0.001). After the study, it was found that 18 women (25.7%) in case group and 42 women (60%) in the control group underwent cesarean section. By Chi-square test showed that the difference in the type of delivery between the two groups was statistically significant (p<0.001). Conclusion:Design and implement curriculum based on BASNEF can be effective in reducing elective cesarean section
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