Search results for "Perl"

Densité et mobilité des poissons sous la glace, sur une zone de pêche à la senne de deux lacs finlandais, par écho-intégration.

2000

The density and movements of fish under ice were studied with single-beam mobile surveys and fixed location split-beam surveys, as well as exploratory fishing in winter-seining areas of two shallow Finnish lakes during winter 1999. Fish schooled near the bottom during the day but the schools dispersed and fish ascended at night. Single and split-beam target strength distributions corresponded fairly closely with the length distribution of seine catch samples. Estimated fish densities were greater at night than in daylight. The swimming speed of smelt (Osmerus eperlanus) was 0.18 m·s -1 in daylight and 0.36 m·s -1 at night. The corresponding figures for vendace (Coregonus albula) were 0.11-0…

Marcadores de inflamación e insulinorresistencia en la hiperlipemia familiar combinada

2014

La hiperlipemia familiar combinada (HFC) es un modelo genético de dislipemia mixta con resistencia a la insulina (RI) y elevado riesgo de cardiopatía isquémica por el desarrollo precoz de arteriosclerosis. La RI es independiente del grado de obesidad y del fenotipo lipoproteico. Constituye, además, factor de riesgo cardiovascular en estos pacientes. Actualmente existe una gran evidencia de que en el desarrollo y progresión de la aterosclerosis subyacen mecanismos inmunológicos e inflamatorios. Algunos estudios han demostrado que proteínas de fase aguda y algunas interleucinas fueron factores predictivos de progresión y gravedad de enfermedad coronaria. Recientemente, en modelos animales y h…

European Panel on Low Density Lipoprotein (LDL) Subclasses: A Statement on the Pathophysiology, Atherogenicity and Clinical Significance of LDL Subcl…

2011

Item does not contain fulltext Aim of the present Consensus Statement is to provide a comprehensive and up to-date document on the pathophysiology, atherogenicity and clinical significance of low density liproproteins (LDL) subclasses. We sub-divided our statement in 2 sections. section I discusses the pathophysiology, atherogenicity and measurement issues, while section II is focused on the effects of drug and lifestyle modifications. Suggestions for future research in the field are highlighted at the end of section II. Each section includes Conclusions.

Second harmonic generation in self-assembled alternating multilayers of hemicyanine containing polymers and polyvinylamine

1995

Abstract Assembly of noncentrosymmetric multilayers is a facile technique for preparing noncentrosymmetric films avoiding electrical poling procedures and problems from subsequent relaxation of the induced orientational order. A maximum Xzzz of 13 × 10−9 esu was achieved for the assembly of up to six layers. Current problems are the long-term hydrolysation of the hemicyanine nonlinear optical chromophores and the reduction of polar orientation with increasing layer thickness.

Metal nanoparticle/polymer superlattice films: Fabrication and control of layer structure

1997

Les sépultures de Truchtersheim "Holderacker" (Bas-Rhin) et les pratiques funéraires du Bronze A1 dans le sud de la plaine du Rhin supérieur

2023

Die Freilegung 2019 eines kleinen frühbronzezeitlichen (2030-1900 v. Chr.) Bestattungsensemblesin Truchtersheim „Holderacker“, etwa 12 km nordwestlich von Straßburg, hat uns bewegt uns mit der gesamten für das Elsassverfügbaren Dokumentation der frühbronzezeitlichen Bestattungssitten zu befassen. Dieser bisher kaum dokumentiertechronologische Horizont wurde kürzlich durch eine Reihe von Funden bereichert, die vorwiegend zwischen 2017 und 2019bei präventivarchäologischen Operationen im Vorfeld der Bauarbeiten der Westumgehung von Straßburg entdeckt wurden.Das bescheidene regionale Corpus mit 20 Gräbern erlaubt nur begrenzte Beobachtungen, es weist jedoch doch mehrere für dieFrühbronzezeit ch…

Multiple solutions for semilinear Robin problems with superlinear reaction and no symmetries

2021

We study a semilinear Robin problem driven by the Laplacian with a parametric superlinear reaction. Using variational tools from the critical point theory with truncation and comparison techniques, critical groups and flow invariance arguments, we show the existence of seven nontrivial smooth solutions, all with sign information and ordered.

Blokķēžu tehnoloģijas pielietošana augstskolu diplomu autentifikācijas sistēmas izveidē

2021

Šobrīd Latvijā nepastāv vienota diplomu autentifikācijas sistēma, tāpēc gadījumā, ja ir nepieciešams pārliecināties, ka diploms nav viltots – ir jāveic rakstisks iesniegums augstskolai. Darba mērķis ir piedāvāt risinājumu šai problēmai, izstrādājot vienotu diplomu autentifikācijas sistēmas tehnoloģisko risinājumu. Darba teorētiskajā daļā tiek izpētītas datu apstrādes sistēmas, blokķēdes tehnoloģija un platformas, aprakstot to īpašības un darbības principu. Tika noskaidrots, ka blokķēdes tehnoloģija ir atbilstoša darba mērķa sasniegšanai Darba praktiskajā daļā tika apzināti pasaulē esošie blokķēdes tehnoloģijas risinājumi izglītības nozarē. Tika veikta aptauja par Latvijā esošajām augstskolu…

The determination of haemoglobin as cyanhaemiglobin or as alkaline haematin D-575. Comparison of method-related errors.

1989

In order to compare the accuracy of haemoglobin (Hb) determination methods, the commonly used cyanhaemiglobin (HiCN) method and the recently developed alkaline haematin D-575 (AHD) method (R. Zander, W. Lang & H. U. Wolf (1984) Clin. Chim. Acta 136, 83-93; H. U. Wolf, W. Lang & R. Zander (1984) Clin. Chim. Acta 136, 95-104) were tested with respect to method-related errors such as plasma, cell, and Hb errors. Both methods yield a series of more or less significant errors which generally lead to an overestimation of the Hb concentration in the order of 1%. However, in all three cases of plasma errors, i.e. normal plasma error, plasma error in lipaemic blood, and plasma error in bilirubinaemi…

Effects of InAlN underlayer on deep traps detected in near-UV InGaN/GaN single quantum well light-emitting diodes

2019

Two types of near-UV light-emitting diodes (LEDs) with an InGaN/GaN single quantum well (QW) differing only in the presence or absence of an underlayer (UL) consisting of an InAlN/GaN superlattice (SL) were examined. The InAlN-based ULs were previously shown to dramatically improve internal quantum efficiency of near-UV LEDs, via a decrease in the density of deep traps responsible for nonradiative recombination in the QW region. The main differences between samples with and without UL were (a) a higher compensation of Mg acceptors in the p-GaN:Mg contact layer of the sample without UL, which correlates with the presence of traps with an activation energy of 0.06 eV in the QW region, (b) the…