نتایج جستجو برای: 1 gr
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In this report, magnetically recoverable sulfur-doped SnFe2O4/graphene (S-SFO/GR) nanohybrids have been successfully developed via a facile solvothermal method. The characterizations on the structural, morphology, and optical properties of the nanohybrids indicate that S-SFO particles are successfully embedded on the GR nanosheets. The photocatalytic activity has been evaluated by photocatalyti...
Claims have been made recently that glyphosate-resistant (GR) crops sometimes have mineral deficiencies and increased plant disease. This review evaluates the literature that is germane to these claims. Our conclusions are: (1) although there is conflicting literature on the effects of glyphosate on mineral nutrition on GR crops, most of the literature indicates that mineral nutrition in GR cro...
پلی اتیلن سبک خطی، نوعی از کوپلیمرهای اتیلن با کومونومرهایی از قبیل 1-بوتن، 1-هگزن و 1-اکتن است که در صنعت، مصارف قابل توجهی دارند. در سنتز این کوپلیمرها در صنعت، از کاتالیست های متالوسن و زیگلر-ناتا استفاده می شود. استفاده از پیش برنده ها، که ترکیباتی با وزن مولکولی کوچک هستند، مقدار مصرف کاتالیست در سنتز پلی اولفین ها را کاهش می دهد. در این پروژه، با استفاده از پیش برنده ی از جنس هالوکربن ، ت...
The Galois ring GR(p,m) of characteristic p and cardinality p, where p is a prime and r,m ≥ 1 are integers, is a Galois extension of the residue class ring Zpr by a root ω of a monic basic irreducible polynomial of degree m over Zpr . Every element of GR(p ,m) can be expressed uniquely as a polynomial in ω with coefficients in Zpr and degree less than or equal to m − 1, thus GR(p,m) is a free m...
The level of expression of the glucocorticoid receptor (GR) is the principal determinant of glucocorticoid sensitivity in most cells. GR levels are permanently 'set' in a tissue-specific manner in response to the perinatal environment, an effect we have previously shown to relate to differential expression of tissue-enriched alternative promoters/exons 1 of the GR gene. In adult animals, GR lev...
Corticotropinomas are characterized by a relative resistance to the negative feedback action of cortisol on ACTH secretion. In this respect there is a similarity with the clinical syndrome of cortisol resistance. As cortisol resistance can be caused by genetic abnormalities in the glucocorticoid receptor (GR) gene, we investigated whether the insensitivity of corticotropinomas to cortisol is al...
While glucocorticoids (GCs) are used clinically to treat many conditions, their neonatal and prenatal usage is increasingly controversial due to reports of delayed adverse outcomes, especially their effects on brain development. Such alterations may reflect the impact of GCs on neural progenitor/stem cell (NPSC) function. We previously demonstrated that the lipid raft protein caveolin-1 (Cav-1)...
The Galois ring GR(p,m) of characteristic p and cardinality p, where p is a prime and r,m ≥ 1 are integers, is a Galois extension of the residue class ring Zpr by a root ω of a monic basic irreducible polynomial of degree m over Zpr . Every element of GR(p ,m) can be expressed uniquely as a polynomial in ω with coefficients in Zpr and degree less than or equal to m − 1, thus GR(p,m) is a free m...
Denote by R the power series ring in countably many variables over a eld K; then R 0 is the smallest sub-algebra of R that contains all homogeneous elements. It is a fact that a homogeneous, nitely generated ideal J in R 0 have an initial ideal gr(J), with respect to an arbitrary admissible order, that is locally nitely generated in the sense that dimK gr(J) d P d?1 j=1 R 0 j gr(J) d?j < 1 for ...
Evolution of glyphosate-resistant kochia is a threat to no-till wheat-fallow and glyphosate-resistant (GR) cropping systems of the US Great Plains. The EPSPS (5-enol-pyruvylshikimate-3-phosphate synthase) gene amplification confers glyphosate resistance in the tested Kochia scoparia (L.) Schrad populations from Montana. Experiments were conducted in spring to fall 2014 (run 1) and summer 2014 t...
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