Search results for "lemma"
showing 10 items of 210 documents
Topics on n-ary algebras
2011
We describe the basic properties of two n-ary algebras, the Generalized Lie Algebras (GLAs) and, particularly, the Filippov (or n-Lie) algebras (FAs), and comment on their n-ary Poisson counterparts, the Generalized Poisson (GP) and Nambu-Poisson (N-P) structures. We describe the Filippov algebra cohomology relevant for the central extensions and infinitesimal deformations of FAs. It is seen that semisimple FAs do not admit central extensions and, moreover, that they are rigid. This extends the familiar Whitehead's lemma to all $n\geq 2$ FAs, n=2 being the standard Lie algebra case. When the n-bracket of the FAs is no longer required to be fully skewsymmetric one is led to the n-Leibniz (or…
Trans-sarcolemmal proteins situated central to the subsarcolemmal region
2002
Trans-sarcolemmal proteins located inside, within, and outside of the muscle fibre plasma membrane fall into two categories, the dystrophin-glycoprotein complex (DGC) and non-DGC-related proteins, e.g. dysferlin, caveolin, dystrobrevins and syntrophins. Mutational defects are responsible for their immunohistochemical absence or reduction giving rise to certain muscular dystrophies. In other neuromuscular disorders, i.e. inflammatory, metabolic, and neurogenic processes, transarcolemmal proteins are well preserved. Unlike desmin and plectin, which form a honeycomb-type network across the muscle fibre and a subsarcolemmal layer, trans-sarcolemmal proteins are not expressed central to the subs…
Fuzzy Set Theory as a Methodological Bridge between Hard Sciences and Humanities
2013
In this paper, we will investigate the possible role of fuzzy set theory (FST), and more generally the ensemble of technologies and theoretical approaches known as soft computing, as a methodological bridge between hard sciences and humanities. We will try, building on previous works, to investigate the “family links” between these disciplines and show how FST may be of help in promoting a connection between the “two cultures”. We will discuss Carnap and his paradox of explication, the dilemma between imagination and rigor according to Bateson, the problem of interdisciplinarity, and the consequences of precision and exactness. C
Dissociation of theophylline uptake and inotropic effect in myocardial tissue: influence of temperature, pH and calcium.
1975
1. The myocardial uptake and the positive inotropic effect of theophylline (100 mug/ml; 0.56 mM) were studied in isolated electrically driven guinea-pig hearts perfused by the Langendorff technique under various extracellular conditions. [3H]-theophylline was used. 2. Variations in temperature, hydrogen ion and calcium ion concentrations of the perfusion media changed the time course and magnitude of the effect of theophylline on myocardial twitch tension but did not affect the time course and amount of theophylline uptake. 3. Under all conditions, the build-up of the positive inotropic effect of theophylline was about three times faster than the uptake of the drug into the heart. 4. Since …
Iespējas un izaicinājumi drošības dilemmas pārvarēšanai: Irānas un Izraēlas attiecības pēc 2012. gada
2015
Irānas un Izraēlas attiecības periodā pēc Aukstā kara ir nozīmīgi veicinājušas ne tikai savstarpējo, bet arī reģionālo un starptautisko nedrošību. Nedrošība anarhiskā starptautiskā sistēmā veicina drošības dilemmas attīstību valstu attiecībās. Drošības dilemma koncepts ir ne tikai viens no centrālajiem konceptiem starptautisko attiecību teorijā un praksē, kas skaidro starpvalstu attiecību dinamiku no anarhijas līdz karam, bet tā analīze ir būtiska arī drošības vides novērtēšanai, skaidrošanai un risinājumu meklēšanai nedrošības samazināšanai un miera nodrošināšanai. Maģistra darba „Iespējas un izaicinājumi drošības dilemmas pārvarēšanai: Irānas un Izraēlas attiecības pēc 2012. gada” mērķis …
Solitary keratoacanthoma involving upper lip: a diagnostic dilemma - case report and a brief review
2010
Keratoacanthoma (KA) is a benign epithelial proliferative lesion which frequently occurs on the sun exposed areas of the skin. KA originates within the pilosebaceous apparatus of the skin and may be solitary or multiple. Solitary KA can be difficult to differentiate from squamous cell carcinoma (SCC) both clinically and microscopically. However, the clinical course of the lesion and its ability to self involute makes it a distinct clinical entity. Solitary KA appears on the vermilion border of the lower lips with some frequency. A case of keratoacanthoma involving the upper lip is reported presenting as an exophytic growth that resolved after excisional biopsy. Photo- graphic documentation …
The Right Not to Have Rights: Posted Worker Acquiescence and the European Union Labor Rights Framework
2016
AbstractThe emergence of the European Union citizenship agenda has mainly taken place along the evolution of mobility rights, with the goal of creating a pan-European labor market. Mobility undermines the nationally embedded notion of industrial citizenship. Industrial citizenship protects workers’ rights and secures their participation in national political systems. The Europeanization of labor markets severs the relationship between state, territory and citizen on which industrial citizenship has been built, undermining worker collectivism and access to representation. This is legitimated in terms of building market-citizenship, i.e., enabling mobile workers as market actors. However, the…
Stipa zeravshanicasp. nov. (Poaceae), an endemic species from rocky walls of the western Pamir Alai Mountains (middle Asia)
2013
Stipa zeravshanica M. Nobis sp. nov. from the western Pamir Alai Mts (Tajikistan) is described and illustrated. Morphologically, the new species is similar to S. gracilis, but it is easily distinguishable by pilose (vs. glabrous) lower part of the awn, and generally somewhat longer ligules of the vegetative shoots. Epidermal patterns of the lemma in S. zeravshanica and three other closely related taxa, namely S. gracilis, S. himalaica and S. orientalis, were examined by means of SEM. The main macro-morphological and micro-morphological characteristics differentiating all mentioned species are presented. Additionally, a lectotype for S. gracilis is designated. Based on phytosociological rele…
Bounded Palais–Smale sequences for non-differentiable functions
2011
The existence of bounded Palais-Smale sequences (briefly BPS) for functionals depending on a parameter belonging to a real interval and which are the sum of a locally Lipschitz continuous term and of a convex, proper, lower semicontinuous function, is obtained when the parameter runs in a full measure subset of the given interval. Specifically, for this class of non-smooth functions, we obtain BPS related to mountain pass and to global infima levels. This is done by developing a unifying approach, which applies to both cases and relies on a suitable deformation lemma. © 2011 Elsevier Ltd. All rights reserved.
Compact embeddings and indefinite semilinear elliptic problems
2002
Our purpose is to find positive solutions $u \in D^{1,2}(\rz^N)$ of the semilinear elliptic problem $-\laplace u = h(x) u^{p-1}$ for $2<p$. The function $h$ may have an indefinite sign. Key ingredients are a $h$-dependent concentration-compactness Lemma and a characterization of compact embeddings of $D^{1,2}(\rz^N)$ into weighted Lebesgue spaces.