Results 41 to 50 of about 167,572 (215)

Ontogeny of the malleus in Mesocricetus auratus (Mammalia, Rodentia): Systematic and functional implications for the muroid middle ear

The Anatomical Record, EarlyView.
Abstract The three mammalian auditory ossicles enhance sound transmission from the tympanic membrane to the inner ear. The anterior anchoring of the malleus is one of the key characters for functional classification of the auditory ossicles. Previous studies revealed a medial outgrowth of the mallear anterior process, the processus internus ...
Franziska Fritzsche, Wolfgang Maier, Irina Ruf   +2 more
wiley   +1 more source

Acne tarda: Empfehlungen zu Einordnung, Therapie und Pflege als Ergebnis einer Expertendiskussion [PDF]

J Dtsch Dermatol Ges
Zusammenfassung Acne tarda wird in der Literatur als Erwachsenenakne definiert, die laut den meisten Autoren bei Frauen ab 25 Jahren auftritt. Die Definitionen und Altersgrenzen variieren jedoch zwischen den Studien. Gängige Leitlinien berücksichtigen Erwachsenenakne bislang nur selten.
Augustin M, Dirschka T, Gerber P, Kerscher M, Kirsten N, Ochsendorf F.   +5 more
europepmc   +2 more sources

Progressive vowel height harmony in Proto-Kikongo and Proto-Bantu [PDF]

, 2019
The systematic comparison of the different types of progressive Vowel Height Harmony (pVHH) attested within the Kikongo Language Cluster (KLC) leads to the conclusion that this common Bantu process of long-distance assimilation cannot be reconstructed to
Bostoen, Koen, Goes, Heidi
core   +1 more source

Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen

Physik in unserer Zeit, EarlyView.
Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley   +1 more source

Morphological Principal Component Analysis for Hyperspectral Image Analysis

ISPRS International Journal of Geo-Information, 2016
This article deals with the issue of reducing the spectral dimension of a hyperspectral image using principal component analysis (PCA). To perform this dimensionality reduction, we propose the addition of spatial information in order to improve the ...
Gianni Franchi, Jesús Angulo
doaj   +1 more source

Effects of Monovalent and Divalent Cations on Ca2+ Fluxes Across Chromaffin Secretory Membrane Vesicles [PDF]

, 1983
: Bovine chromaffin secretory vesicle ghosts loaded with Na+ were found to take up Ca2+ when incubated in K+ media or in sucrose media containing micromolar concentrations of free Ca2+. Li+- or choline+loaded ghosts did not take up Ca2+.
Baker P. F., Borle A. B., Carafoli E., Flodgaard H., Goldstone T. P., Heidemarie I. Krieger-Brauer, Kostron H., Lowry O. H., Manfred Gratzl, Phillips J. H., Reed K. C., Saermark T., Sandeaux R., Sillen L. G.   +13 more
core   +1 more source

Field‐based evidence of impaired sperm quality associated with conventional farming in two passerine birds

Ibis, EarlyView.
The detrimental effects of conventional farming on bird biodiversity are increasingly documented. Despite this, the specific impacts of both organic and conventional farming practices on bird coloration and sperm quality in natural settings remain unexplored. This study aimed to determine whether these farming practices differentially affect body mass,
Ségolène Humann‐Guilleminot, Audrey Bailly, Karine Monceau, Mélissa Desbonnes, Vincent Bretagnolle, Jérôme Moreau   +5 more
wiley   +1 more source

SOME DENSE RANDOM PACKINGS GENERATED BY THE DEAD LEAVES MODEL

Image Analysis and Stereology, 2019
The intact grains of the dead leaves model enables us to generate random media with non overlapping grains. Using the time non homogeneous sequential model with convex grains, theoretically very dense packings can be generated, up to a full covering of ...
Dominique Jeulin
doaj   +1 more source

A Lavandula angustifolia flower extract and dipeptide‐4 blend modulates oxidative, glycative, autophagic and circadian pathways in human skin models

International Journal of Cosmetic Science, EarlyView.
The blend enhanced antioxidation, anti‐glycation, autophagy and circadian regulation in cell and skin models. Key markers included mitochondrial ROS, γ‐H2AX, AGEs, ATP, melatonin, LC3 and SOD. Significant improvements were visualized via fluorescence and quantified with statistical markers.
Lina Wang, Yuxuan Wu, Huiping Hu, Yanan Li, Peiwen Sun   +4 more
wiley   +1 more source

Isotopic ratios and elemental contents as indicators of seagrass C processing and sewage influence in a tropical macrotidal ecosystem (Madagascar, Mozambique Channel)

Scientia Marina, 2008
Isotopic ratios and elemental concentrations of carbon and nitrogen were measured in seven seagrass species colonising different tidal flats near Toliara (SW Madagascar) in order to determine the potential use of these parameters for assessing C ...
Gilles Lepoint, Bruno Frédérich, Sylvie Gobert, Eric Parmentier   +3 more
doaj   +1 more source