Results 51 to 60 of about 245,246 (359)

Effets de l'exposition à un insecticide carbamate, le carbofuran, sur les performances de jeunes stades de brochet (Esox lucius L., 1758) : résultats préliminaires

open access: yesKnowledge and Management of Aquatic Ecosystems, 1998
Des lots de jeunes brochets au stade embryon libre, stabulés dans des béchers en verre, ont été exposés en conditions statiques à des solutions (0-250 µg.L-1) de carbofuran, un insecticide carbamate inhibiteur de l'activité de l'acétylcholinestérase ...
AMBLARD G.   +3 more
doaj   +1 more source

Description of the fourth instar larva of Lutzomyia longipalpis, under scanning electron microscopy

open access: yesMemorias do Instituto Oswaldo Cruz, 1996
The fourth instar larva of Lutzomyia (Lutzomyia) longipalpis (Phlebotomidae: Phlebotominae) was studied by scanning electron microscope. Based on three-dimensional observations, the fine structure and setal position (using of setal numeration) of the ...
Antônio Cesar Rios Leite, Paul Williams
doaj   +1 more source

Multi-objective optimization shapes ecological variation [PDF]

open access: yes, 2013
Ecological systems contain a huge amount of quantitative variation between and within species and locations, which makes it difficult to obtain unambiguous verification of theoretical predictions.
Kaitaniemi, Pekka   +3 more
core  

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

open access: yesAdvanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell   +4 more
wiley   +1 more source

Taxonomy and biology of Culex (Culex) maxi Dyar (Diptera: Culicidae) in South America

open access: yesMemorias do Instituto Oswaldo Cruz, 1996
Culex (Culex) maxi Dyar is described in the adult, pupal and larval stages, and the male genitalia and parts of the fourth-instar larva are illustrated. The larva is described for the first time.
Walter R Almirón, Ralph E Harbach
doaj   +1 more source

Bessel beam illumination reduces random and systematic errors in quantitative functional studies using light-sheet microscopy [PDF]

open access: yes, 2018
Light-sheet microscopy (LSM), in combination with intrinsically transparent zebrafish larvae, is a choice method to observe brain function with high frame rates at cellular resolution.
Alterini, Tommaso   +8 more
core   +15 more sources

Recombinant Proteins: A Molecular Tool to Understand Marine Adhesion and to Advance Biomaterials

open access: yesAdvanced Healthcare Materials, EarlyView.
The production of recombinant proteins represents a fundamental step in the characterisation of marine invertebrate adhesives and in the development of bio‐inspired glues. The association of these proteins with other components such as ions, proteins, polysaccharides, or polymers enables the fabrication of biomaterials for various healthcare ...
Alessandra Whaite   +4 more
wiley   +1 more source

A new species of larval Abrolophus (Trombidiformes: Erythraeidae) from Iran with a key to species without a comb-like seta on the palptarsus

open access: yesPersian Journal of Acarology, 2022
Larvae of Abrolophus hajiqanbari sp. nov. (Trombidiformes: Erythraeidae) collected from soil and litter (off host) in Chahardeh and Chahkand villages, Birjand, South Khorasan province, Iran are described and illustrated.
Javad Noei
doaj   +1 more source

Baylisascaris larva migrans

open access: yesJournal of the American Veterinary Medical Association, 1989
Baylisascaris procyonis is a roundworm of the raccoon found primarily in North America but also known to occur in other parts of the world including South America, Europe, and Japan. Migration of the larvae of this parasite is recognized as a cause of clinical neural larva migrans (NLM) in humans, primarily children.
Kevin R, Kazacos   +2 more
openaire   +4 more sources

Crop protection. Visit to the GODPC / SIAT / Nucleus estate - smallholders and outgrowers : 23 to 28 February 2004 [PDF]

open access: yes, 2004
The time allowed for the visit was very short, so it was not possible to carry out a more detailed and more meticulous analysis than the one presented in this report.
Philippe, René
core  

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