Search results for " FORMS"
showing 10 items of 199 documents
Differenziazione e quantificazione dei carbonati litogenici e pedogenici di Gypsisuoli forestali attraverso l'analisi isotopica
2004
Gli autori riferiscono sui tipi e sui modelli di genesi dei carbonati dei suoli, attraverso l’uso degli isotopi del 13C. Lo studio è stato condotto in un’area dell’interno collinare argilloso siciliano, su suoli che evolvono sui depositi evaporitici della Serie Gessoso-Solfifera. Sono stati scelti cinque pedon su litotipi calcarei e non. I pedon sono stati descritti in campo e campionati secondo la sequenza degli orizzonti genetici; sui campioni di suolo sono state eseguite le seguenti analisi: tessitura, reazione, conducibilità elettrica, gesso, carbonio organico ed inorganico. Inoltre, parallelamente sono state eseguite le analisi isotopiche del carbonio organico ed inorganico. I risultat…
Rīks Bezjē līkņu konstruēšanai un modificēšanai
2019
Kvalifikācijas darbā ir aprakstīta sistēma interaktīvam grafisku objektu rīkam, kas paredzēta kubisku Bezjē līkņu konstruēšanai, modificēšanai un dzēšanai, izmantojot datorpeli, datora tastatūru vai teksta failus. Sistēma piedāvā ģenerēt četru dažādu veidu Bezjē līknes, tai skaitā interpolētas līknes un saliktas līknes ar C2 nepārtrauktību (B-splaini), papildus izmantojot trīs dažādu veidu parametrizācijas metodes. Iespējams arī izvadīt konstruēto Bezjē līkņu kontrolpunktus un/vai mezglu punktus, kā arī citus līkni raksturojošos lielumus. Līkņu vizuālai salīdzināšanai iespējams augšupielādēt fona attēlu un pietuvināt, attālināt grafiskos objektus. Sistēma implementēta C# programmēšanas valo…
Amyloid precursor protein in platelets: A peripheral marker for the diagnosis of sporadic AD
2001
BACKGROUND: An altered pattern of amyloid precursor protein (APP) forms consisting in a reduced ratio between the upper (130 kDa) and the lower (106 to 110 kDa) immunoreactivity bands has been described in platelets of patients with AD. OBJECTIVE: To evaluate the sensitivity and the specificity of platelet APP forms' ratio (APPr) as a marker for AD. METHODS: Eighty-five patients with probable AD and 95 control subjects (CON), including healthy individuals and neurologic patients, entered the study. Platelet APPr was evaluated by means of Western Blot analysis and immunostaining in the whole platelet homogenate, and calculated by the ratio between the optical density (OD) of the upper (130 k…
Biowaiver Monograph for Immediate-Release Solid Oral Dosage Forms: Moxifloxacin Hydrochloride.
2020
Abstract In this monograph, literature data is reviewed to evaluate the feasibility of waiving in vivo bioequivalence testing and instead applying the Biopharmaceutics Classification System (BCS) based methods to the approval of immediate-release solid oral dosage forms containing moxifloxacin hydrochloride as the sole active pharmaceutical ingredient. To facilitate the feasibility decision, solubility and permeability and dissolution characteristics in the context of the BCS, therapeutic index, therapeutic use, pharmacokinetic parameters, bioequivalence/bioavailability issues, drug-excipient interactions and other relevant data were taken into consideration. Moxifloxacin is a BCS class I d…
Toward Biopredictive Dissolution for Enteric Coated Dosage Forms
2016
The aim of this work was to develop a phosphate buffer based dissolution method for enteric-coated formulations with improved biopredictivity for fasted conditions. Two commercially available enteric-coated aspirin products were used as model formulations (Aspirin Protect 300 mg, and Walgreens Aspirin 325 mg). The disintegration performance of these products in a physiological 8 mM pH 6.5 bicarbonate buffer (representing the conditions in the proximal small intestine) was used as a standard to optimize the employed phosphate buffer molarity. To account for the fact that a pH and buffer molarity gradient exists along the small intestine, the introduction of such a gradient was proposed for p…
Extensions of Representable Positive Linear Functionals to Unitized Quasi *-Algebras: A New Method
2014
In this paper we introduce a topological approach for extending a representable linear functional \({\omega}\), defined on a topological quasi *-algebra without unit, to a representable linear functional defined on a quasi *-algebra with unit. In particular, we suppose that \({\omega}\) is continuous and the positive sesquilinear form \({\varphi_\omega}\), associated with \({\omega}\), is closable and prove that the extension \({\overline{\varphi_\omega}^e}\) of the closure \({\overline{\varphi_\omega}}\) is an i.p.s. form. By \({\overline{\varphi_\omega}^e}\) we construct the desired extension.
Actions de tores algébriques sur des corps de caractéristique zéro
2023
Over an algebraically closed field of characteristic zero, normal affine varieties endowed with an effective torus action were described by Altmann and Hausen in 2006 by a geometrico-combinatorial presentation.Using Galois descent tools, we extend this presentation to the case where the ground field is an arbitrary field of characteristic zero. In this context, the acting torus may be non split and may have non-trivial torsors, thus we need additional data to encode such varieties. We provide some situations where the generalized Altmann-Hausen presentation simplifies. For instance, if the acting torus is split, we recover mutatis mutandis the original Altmann-Hausen presentation. Finally, …
Commenting on Historical Writings in Medieval Latin Europe : A Reconnaissance
2015
Modern scholarship seems to undervalue medieval commentaries on historical writings. This article intends to bring this phenomenon to scholars’ attention by providing a preliminary overview of the forms and subjects of such commentaries. It examines various types of evidence including not only a few commentaries proper (Nicolas Trevet’s on Livy and John of Dąbrówka’s on Vincent of Cracow), but also different apparatus consisting of more or less systematic interlinear and marginal glosses and commentary-like additions to vernacular translations, mostly of Italian and French origin. It begins by considering various consultation-related signs and annotations, such as cross-references. Then, it…
Fashion and Eroticism Men's Underwear in the Context of Eroticism
2001
What is the process when historically obviously neutral things are becoming loaded with mental meanings, associations and qualities, getting a new turn of expression? The article deals with the changing of men’s underwear from garments of pure utility to high fashionable, visible things. The context in which the change has taken place, the language which supports the new meanings, the forms, colours and use of the “unmentionable” are studied from an ethnological viewpoint. The author emphasises the aspects of new adaptations of the meaning of fashion in relation to changing gender roles, new ideals of the body and new mechanisms in consumer culture.
The exterior derivative as a Killing vector field
1996
Among all the homogeneous Riemannian graded metrics on the algebra of differential forms, those for which the exterior derivative is a Killing graded vector field are characterized. It is shown that all of them are odd, and are naturally associated to an underlying smooth Riemannian metric. It is also shown that all of them are Ricci-flat in the graded sense, and have a graded Laplacian operator that annihilates the whole algebra of differential forms.