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تعداد نتایج: 16080 فیلتر نتایج به سال:
BACKGROUND Actinic keratoses (AKs) are intraepidermal skin tumors that have the potential to progress to squamous cell carcinomas (SCCs). SCCs are the second most common cancer with more than 200,000 cases each year in America. Approximately 10% of AKs will progress to SCCs. This progression is thought to be due to chronic sun exposure, specifically ultraviolet B sunlight. OBJECTIVE Understan...
Samsun; Ermeni, Rum ve Türk nüfusu bir arada barındırması bakımından önemli şehirdir. Farklı millete mensup insanların yaşaması, şehirde çok kültürlü ortamın tezahür etmesini sağlamıştır. Tespit edilebildiği kadarıyla, şehrin gazeteyle tanışması 1870 yılında Rumlar tarafından neşredilen Euksinos (Karadeniz) gazetesiyle gerçekleşir. Edebî, tarihî kültürel olayları ihtiva eden Euksinos, Trabzon’d...
IMPORTANCE Topical fluorouracil was demonstrated to be effective in reducing the number of actinic keratoses (AKs) for up to 6 months, but no randomized trials studied its long-term efficacy. OBJECTIVE To evaluate the long-term efficacy of a single course of fluorouracil cream, 5%, for AK treatment. DESIGN, SETTING, AND PARTICIPANTS The Veterans Affairs Keratinocyte Carcinoma Chemopreventio...
ریشهزایی گیاه میتواند ناشی از تلقیح میکروبی و اکسین میکروبی باشد. تولید اکسین توسط باکتریها با ایفای نقش در ریشهزایی گیاه به عنوان یکی از ویژگیهای تحریک‌کننده رشد گیاه شناخته میشود. بر این اساس در قالب آزمایش فاکتوریل، توان تولید اکسین برخی از جدایههای باکتریایی (25 جدایه) در شرایط درونشیشه‌ای مورد سنجش قرار گرفت. نتایج نشان داد که تولید اکسین جدایهها در شرایط درون شیشهای، در ...
The problem of sorting n elements using p processors in a parallel comparison model is considered. Lower and upper bounds which imply that for p ≥ n, the time complexity of this problem is Θ( log( 1 + p / n) logn _ __________ ) are presented. This complements [AKS-83] in settling the problem since the AKS sorting network established that for p≤n the time complexity is Θ( p nlogn _ _____ ). To p...
The present work has been carried out at CSIR Centre for Mathematical Modeling and Computer Simulation (C-MMACS). The paper deals with the implementation of AKS class primality tests and various issues relating to it. AKS algorithm is the first deterministic polynomial time primality test named after its authors Manindra Agarwal, Neeraj Kayal and Ntin Saxena. A primality-testing algorithm is on...
BACKGROUND There is no completely satisfactory treatment for multiple actinic keratoses (AKs). OBJECTIVE To evaluate the efficacy of short incubation, broad-area application of delta-aminolevulinic acid followed by exposure to activating light-photodynamic therapy (delta-ALA/PDT) for treatment of AKs and background photodamage. The benefit of pretreatment with 40% urea cream to enhance penetr...
F luorouracil effectively destroys clinical and subclinical actinic keratoses (AKs) by targeting rapidly proliferating cells while sparing normal skin. This effect was initially reported in patients treated with systemic fluorouracil for solid internal malignant neoplasms. Subsequently, topical fluorouracil was demonstrated to clear AKs while minimizing the internal adverse effects associated w...
Actinic keratoses (AKs) are evolving malignant cutaneous neoplasms. They are also known as solar keratosis, squamous cell carcinoma in situ-solar keratotic type, or keratinocytic intraepidermal neoplasia. Actinic keratoses can be treated by two general methods: by physical/destructive methods and with topical therapies. This article will review current and evolving topical therapeutic options f...
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