نتایج جستجو برای: ft
تعداد نتایج: 19380 فیلتر نتایج به سال:
BACKGROUND The ability to induce flowering on demand is of significant biotechnological interest. FT protein has been recently identified as an important component of the mobile flowering hormone, florigen, whose function is conserved across the plant kingdom. We therefore focused on manipulation of both endogenous and heterologous FT genes to develop a floral induction system where flowering w...
Fair Trade (FT) markets have been introduced as a mechanism to improve the economic livelihoods of smallholder farmers by translating consumers’ “ethical demand” into higher prices for producers. Unlike other certification mechanisms such as organic, dolphin-friendly, and shade grown that intend on affecting the production process, FT explicitly seeks to deliver rents to producers via the price...
Introduction During the summer and fall of 1997, the Hoop Research Complex was developed at the Iowa State University (ISU) Rhodes Research Farm for comparing hoop structures to confinement for swine finishing. The site consists of three hoop structures and one modular confinement building. The hoops, each 30 ft × 60 ft, are oriented north/south. The south end of each hoop has a concrete floor ...
FLOWERING LOCUS T (FT) plays a key role as a mobile floral induction signal that initiates the floral transition. Therefore, precise control of FT expression is critical for the reproductive success of flowering plants. Coexistence of bivalent histone H3 lysine 27 trimethylation (H3K27me3) and H3K4me3 marks at the FT locus and the role of H3K27me3 as a strong FT repression mechanism in Arabidop...
We introduce a constraint system called FT. This system offers a theoretical and practical alternative to the usual Herbrand system of constraints over constructor trees. Like Herbrand, FT provides a universal data structure based on trees. However, the trees of FT (called feature trees) are more general than the constructor trees of Herbrand, and the constraints of FT are of finer grain and of...
BACKGROUND The structural changes in filum terminale (FT) may be responsible for tethered cord syndrome (TCS) in children. Although the histological changes in FT related to TCS are well-known, there is no comparative study of the changes which occur in TCS and normal fetal FT samples. The aims of this study are to compare the histological changes which occurred in FT samples of TCS and in fetu...
In Arabidopsis thaliana, the genes FLOWERING LOCUS T (FT) and TERMINAL FLOWER1 (TFL1) have antagonistic roles in regulating the onset of flowering: FT activates and TFL1 represses flowering. Both encode small, closely related transcription cofactors of ∼175 amino acids. Previous studies identified a potential ligand binding residue as well as a divergent external loop as critical for the differ...
OBJECTIVE: To assess the 24 h profile of androgenemia related to the androgens of both the ovarian and adrenal origin in obese women with menstrual disturbances. METHODS: The association of body mass and body fat distribution with circadian variations of selected androgens of ovarian and adrenal origin was examined in 16 obese women with menstrual disturbances (BMI between 38 and 51 kg/m2; WHR ...
BACKGROUND Health utility (HU) measures are used as overall measures of quality of life and to determine quality adjusted life years (QALYs) in economic analyses. We compared baseline values of three HUs including Short Form 6 Dimensions (SF-6D), and Health Utilities Index, Mark II and Mark III (HUI2 and HUI3) and the feeling thermometer (FT) among type 2 diabetes participants in the Action to ...
حذف منگنز از محیط آبی توسط کربن فعال، زئولیت طبیعی و اصلاح شده در حضور یون های آهن، کروم و آلومینیوم
ارتقاء سطح صنعتی شدن جوامع و افزایش شهرنشینی باعث بروز مشکلات جدید و متفاوت اکولوژیکی گردیده است. بنابراین حفظ محیط زیست از اهمیّت بیشتری برخوردار میگردد. تخلیه فاضلابهای حاوی فلزات سنگین آبهای سطحی را جهت مصارف آشامیدنی و کشاورزی نامناسب میسازد. در این تحقیق، از جاذبهای کربن فعال، زئولیت طبیعی و اصلاح شده برای حذف یونهای منگنز از محیط آبی در دو حالت تک عنصری و ترکیبی استفاده شد. زئولیت از معادن...
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