Search results for "Essential"
showing 10 items of 812 documents
Self-dual modules over local rings of curve singularities
2006
Abstract Let C be a reduced curve singularity. C is called of finite self-dual type if there exist only finitely many isomorphism classes of indecomposable, self-dual, torsion-free modules over the local ring of C . In this paper it is shown that the singularities of finite self-dual type are those which dominate a simple plane singularity.
PIECEWISE SMOOTH REVERSIBLE DYNAMICAL SYSTEMS AT A TWO-FOLD SINGULARITY
2012
This paper focuses on the existence of closed orbits around a two-fold singularity of 3D discontinuous systems of the Filippov type in the presence of symmetries.
What’s in a name : the effect of category labels on teachers’ beliefs.
2019
In this paper, we report an investigation of the possible influence on teachers’ essentialist thinking and efficacy beliefs of category labels used to describe children’s educational difficulties. A 2x2x2 counterbalanced design was employed in which primary school teachers in Finland and the UK were exposed to vignettes that portrayed a child exhibiting difficulties in one of two domains: either behaviour or reading. Vignettes were presented in two versions. In one, the child was labelled as having either ‘ADHD’ or ‘Dyslexia’; in the alternate condition, no such label was ascribed, descriptions were identical in all other respects. Participating teachers were presented with two vignettes, o…
The Sartre‐Heidegger Controversy on Humanism and the Concept of Man in Education
2012
Jean‐Paul Sartre claims in his 1945 lecture ‘Existentialism is a Humanism’ that there are two kinds of existentialism: that of Christians like Karl Jaspers, and atheistic like Martin Heidegger. Sartre's ‘spiritual master’ Heidegger had no problem with Sartre defining him as an atheist, but he had serious problems with Sartre's concept of humanism and existentialism. Heidegger claims that the essence of humanism lies in the essence of the human being. After the Enlightenment, the Western concept of man has been presented in education in the form of Kantian humanistic essentialism. At least in the Finnish educational system, Kantian humanism is almost an official ideological background of all…
Understanding Deafhood: in search of its meanings.
2013
The authors argue that Deafhood (a term coined by Dr. Paddy Ladd) is an open-ended concept with an essentialist core. They describe how deaf people who have attended their Deafhood lectures and workshops have perceived different aspects of the Deafhood concept, and compare the basic tenets of Deafhood and criticisms on Deafhood to theories and criticisms on feminist essentialisms. The authors find that the vagueness and wideness of the Deafhood concept is one of its strengths, though they also find that it is in some respects problematic to combine and unite ontology and liberation theory in one concept. They further suggest that the ontological aspects of Deafhood need to be foregrounded. …
A cubic defining algebra for the Links–Gould polynomial
2013
Abstract We define a finite-dimensional cubic quotient of the group algebra of the braid group, endowed with a (essentially unique) Markov trace which affords the Links–Gould invariant of knots and links. We investigate several of its properties, and state several conjectures about its structure.
Excess Mortality in Polycythemia Vera and Essential Thrombocythemia
2018
Abstract Background and objective. An important proportion of patients with polycythemia vera (PV) and essential thrombocythemia (ET) are diagnosed in the seventh and eighth decades of life. Because of the chronic course of PV and ET and the advanced age of patients, many will actually die from age-related ailments instead of the myeloproliferative neoplasm, so the disease's impact on life-expectancy remains largely unknown. This registry‐based study was aimed at investigating the excess mortality attributable to PV and ET in a large series of patients diagnosed and managed according to modern criteria. Methods. We queried the databases of the Spanish Group for Chronic Myeloproliferative Ne…
Standard Essential Patents e licenze a condizioni FRAND nel diritto della UE: equità e ragionevolezza tra antitrust e regolazione
2021
L’articolo affronta la controversa questione della determinazione delle condizioni per la concessione di licenze su brevetti essenziali per l’applicazione di uno standard, evidenziando come si sia rivelata inefficiente la scelta della Commissione UE di affidarla esclusivamente alla privata negoziazione dei termini degli impegni FRAND. Tale sistema ha generato un rilevante contenzioso, spesso affrontato con l’applicazione dell’art. 102 TFUE. Scarso aiuto hanno fornito le indicazioni fornite dalla stessa Commissione con diverse comunicazioni, il cui contenuto viene criticamente esaminato, e la pronuncia della Corte di giustizia sul caso ZTE/Huawei. L’autore è dell’idea che sia venuto il momen…
Delta 5-desaturation of dihomogammalinolenic acid (20:3(n-6)) into arachidonic acid (20:4(n-6)) by rat liver microsomes and incorporation of fatty ac…
1991
Abstract Liver microsomes of rats fed an essential fatty acid (EFA)-deficient diet or a commercial balanced diet were used to study the effect of incubation time on the Δ 5 -desaturation of [ 14 C] dihomogammalinolenic acid (20:3( n −6)) into arachidonic acid (20:4( n −6)) and incorporation of the two acids into microsomal phospholipids. The EFA-deficient diet highly increased the desaturation rate of 20:3( n −6). Incorporation of the formed 20:4( n −6) into microsomal phospholipids was also increased but at saturating concentration of substrate only. At early times of incubation, the precursor 20:3( n −6) was rapidly incorporated into phospholipids. Formation and incorporation of 20:4( n −…
Psychosocial stress, catecholamines, and essential fatty acid metabolism in rats.
1994
To examine the effects of psychosocial stress and the "stress hormone," epinephrine, on essential fatty acid metabolism in rats, two studies were conducted. In the first, the effects of four weeks of (i) social isolation and (ii) group housing (control) on liver microsomal delta 6 and delta 5 n-6 desaturase activity were studied in group-reared male normotensive (Wistar Kyoto) and spontaneously hypertensive (SHR) rats (n = 5/group). The second study examined the effects of acute ip epinephrine (0.0, 1.0, 2.0, and 4.0 mg/kg) 6 hr prior to and following an ig dose (4 g/kg) of safflower oil (rich in 18:2n-6, LA) on plasma and liver LA, 20:4n-6 (AA), and LA/AA ratios in adult essential fatty ac…