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تعداد نتایج: 16858078 فیلتر نتایج به سال:
Riboflavin/UVA-induced corneal collagen cross-linking has become an effective clinical application to treat keratoconus and other ectatic disorders of the cornea. Its beneficial effects are attributed to a marked stiffening of the unphysiologically weak stroma. Previous studies located the stiffening effect predominantly within the anterior cornea. In this study, we present an atomic force micr...
the aim of conducting this study was to investigate the foreign language learning needs of undergraduate economics students and business management students in faculties of social sciences of alzahra and azad naragh university. in the study, which was designed on the basis of a qualitative-quantitative basis using interviews and questionnaires, 146 female undergraduate business management as we...
The excessive use of fertilizer has resulted in serious environmental degradation and a high health cost China. Understanding the reasons for overuse is critical to sustainable development Chinese agriculture, large-scale operation considered as one measures deal with use. Under premise fully considering resource endowment heterogeneity farmers small-scale production management, different decis...
Four fragrances, 6-acetyl-1,1,2,4,4,7-hexamethyltetraline (AHTN), 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-ben zopyran (HHCB), musk ketone and musk xylene were tested for developmental toxicity in Sprague-Dawley rats (25/group, 3 groups/fragrance, 2 fragrances/corn oil control). Dosages tested were HHCB: 50, 150, 500 mg/kg per day; AHTN: 5, 15, 50 mg/kg per day; musk keton...
abstract colchicum kotschyi boiss (colchicaceae) is one of the sixteen iranian native colchicum species, containing considerable amount of colchicine. to study the effect of different nutrient levels on corm yield and colchicine content of colchicum kotschyi boiss under open field soilless culture, an experiment was performed in a randomized complete design at the horticultural research station...
BACKGROUND Excessive reactive oxygen species (ROS) may lead to a number of reproductive diseases such as polycystic ovary syndrome. This study aimed to establish an animal model of ovarian oxidative stress and to assess the protective effect of curcumin against oxidative injury. METHODS Ovarian oxidative stress was induced in female Kunming mice (n = 40) with intraperitoneal injection of 8 mg...
At room temperature the delayed fluorescence (luminescence) of spinach chloroplasts, in which the acceptor Q is prereduced, consists of a component with a lifetime of 0.7 mus and a more rapid component, presumably with a lifetime of 100-200 ns and about the same integrated intensity as the 0.7- mus component. Between 4.2 and 200 K only a 100- to 200-ns luminescence component was found, with an ...
OBJECTIVE To evaluate the efficacy and safety of sarilumab in combination with methotrexate (MTX) for the treatment of rheumatoid arthritis (RA). METHODS Adults with moderate-to-severe RA and an inadequate response to MTX were randomized (1:1:1) to receive sarilumab (doses of 150 mg or 200 mg) or placebo every 2 weeks in conjunction with weekly MTX for 52 weeks. Co-primary end points were the...
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