Search results for "VARY"

Differential Expression of theS-Adenosyl-l-Methionine Synthase Genes during Pea Development1

1998

Abstract Two genes coding for S-adenosyl-l-methionine synthase (SAMS, EC 2.5.1.6) were previously isolated from pea (Pisum sativum) ovaries. Both SAMS genes were highly homologous throughout their coding regions but showed a certain degree of sequence divergence within the 5′ and the 3′ untranslated regions. These regions have been used as gene-specific probes to analyze the differential expression of SAMS1and SAMS2 genes in pea plants. The ribonuclease protection assay revealed different expression patterns for each individual gene. SAMS1 was strongly expressed in nearly all tissues, especially in roots. SAMS2 expression was weaker, reaching its highest level at the apex. Following pollina…

Characterization of vitellogenins in Spilostethus pandurus (Hemiptera): Immunoelectrophoretic studies and short-term labelling experiments

1992

Abstract The haemolymph of Spilostethus pandurus contains three female-specific proteins (I, II and III) as revealed by SDS-PAGE. Antibodies prepared against them recognize three fractions (4, 5 and 6) in ovarian extracts which have similar molecular weights suggesting that I, II and III are vitellogenins. Upon injection of a 14C amino acid mixture into vitellogenic females, labelled proteins first appear in the fat body, then in the haemolymph and next in the ovarian follicles.

Predictive control of convex polyhedron LPV systems with Markov jumping parameters

2012

The problem of receding horizon predictive control of stochastic linear parameter varying systems is discussed. First, constant coefficient matrices are obtained at each vertex in the interior of linear parameter varying system, and then, by considering semi-definite programming constraints, weight coefficients between each vertex are calculated, and the equal coefficients matrices for the time variable system are obtained. Second, in the given receding horizon, for each mode sequence of the stochastic convex polyhedron linear parameter varying systems, the optimal control input sequences are designed in order to make the states into a terminal invariant set. Outside of the receding horizon…

Expression of metalloproteinases (MMP-2, MMP-9) and cycloxygenases (COX-1, COX-2) in salivary glands tumors.

2011

Robust fault detection for switched systems with time-varying delay using delta operator approach

2014

CARCINOSARCOMA ARISING IN A DERMOID CYST OF OVARY: A CASE REPORT

2005

BACKGROUND: Transformation of a cystic benign teratoma of the ovary into a "carcinosarcoma" has very rarely been reported and its histogenetic origin is still debated. CASE PRESENTATION: A case of carcinosarcoma arising from a dermoid cyst is reported. The tumor showed cystic areas delimited by normal squamous epithelium, with transitional areas through dysplastic epithelium to "in situ" and infiltrating squamous cell carcinoma (SCC). The sarcomatous component showed compact tissue composed of round cells concentrically arranged around small vessels, spindle, and pleomorphic cells with a high nuclear-cytoplasmic ratio. Positive staining for vimentin, alpha smooth muscle actin and CD10, as w…

Stability and oscillation of dynamical systems : theory and applications

2008

Innowacyjne podejście do kształcenia przyszłych nauczycieli

2015

W artykule przedstawiono autorskie doświadczenia wykorzystania potencjału pedagogicznych pomiarów w celu udoskonalenia kształcenia przyszłych nauczycieli. Otrzymane wyniki konstatowały, że właśnie zadania w testowej formie mogą stać się ważnym ogniwem nauki przyszłych specjalistów. Biorąc jako podstawę do opracowania zadań w testowej formie, prace E.Ł.Biełkina i teorię pedagogicznych pomiarów W.Awanesowa, według dyscyplin psychologiczno-pedagogicznego bloku, opracowano system zadań różnegostopnia złożoności, a także przedstawiono metodykę realizacji tego systemu w procesie zawodowego przygotowania pedagogicznych kadr. W artykule ukazano wyniki praktycznej realizacji opracowanego systemu w p…

Accessory submaxillary gland : two new case reports and a literature review

2020

Background The accessory submaxillary gland is a very uncommon anatomical variant, and incidence in the general population has not yet been quantified. The presence of pathology in these glands is rarer still, thus often going unnoticed. Material and methods We describe two accessory submaxillary gland cases, one asymptomatic and the other with chronic sialadenitis in the main and accessory gland caused by sialolithiasis. Although our diagnosis was by computerized tomography, magnetic resonance sialography is helpful to understand and describe this entity with greater precision. Results The first case report is an incidental finding and no intervention was required. However, case report num…

Brassica trichocarpa (Brassicaceae), a new species from Sicily

2013

A new species of Brassica from Sicily, namely B. trichocarpa, is described and illustrated. This suffrutex was found on a calcareous peak of a mount near Palermo, where it is represented by a single population occupying a really small surface. It is well differentiated from the other perennial species belonging to B. sect. Brassica mainly in having hairy ovary and very short, thickened, hairy, not torulose fruits. Its relationships and taxonomical position within this group are examined too. An analytical key of the current taxa belonging to the genus Brassica sect. Brassica is also provided.