Results 91 to 100 of about 328,950 (364)

Disease dynamics of Honeybees with Varroa destructor as parasite and virus vector [PDF]

open access: yesarXiv, 2015
We propose a honeybee-mite-virus model that incorporates (1) parasitic interactions between honeybees and the Varroa mites; (2) five virus transmission terms between honeybees and mites at different stages of Varroa mites: from honeybees to honeybees, from adult honeybees to phoretic mites, from honeybee brood to reproductive mites, from reproductive ...
arxiv  

Au147(SPh)30(PPh3)12: Ein Geometrisch Geschlossener, aber Elektronisch Offener Dreischaliger Ikosaedrischer Goldcluster und sein Geometrisch Offenes Gegenstück

open access: yesAngewandte Chemie, EarlyView.
Der erste dreischalige ikosaedrische Metallcluster Au147(SPh)30(PPh3)12 wird durch Phosphane und Thiolate stabilisiert und zeigt keine Klammermotive. Dieser Cluster liegt im Grenzbereich zwischen einschaligen Clustern und ikosaedrischen Nanopartikeln.
Markus Strienz   +6 more
wiley   +1 more source

An epidemiological model of viral infections in a Varroa-infested bee colony: the case of a bee-dependent mite population size [PDF]

open access: yesarXiv, 2016
In recent years the spread of the ectoparasitic mite Varroa destructor has become the most serious threat to worldwide apiculture. In the model presented here we extend the bee population dynamics with mite viral epidemiology examined in an earlier paper by allowing a bee-dependent mite population size.
arxiv  

Effect of improved home ventilation on asthma control and house dust mite allergen levels [PDF]

open access: yes, 2009
The warm, humid environment in modern homes favours the dust mite population, but the effect of improved home ventilation on asthma control has not been established.
Ahlstedt   +27 more
core   +1 more source

Mites affecting hen egg production: some considerations for Brazilian farms [PDF]

open access: yesCiência Rural, 2013
The poultry industry is characterized for its constant search for productivity and profitability, which are based on flock health status. Brazilian Commercial laying hens (Gallus gallus domesticus) have been impacted significantly by mite infestations ...
Leandro do Carmo Rezende   +4 more
doaj   +1 more source

Basizität im angeregten Zustand verändert die Selektivität der aromatischen Deuterierung: Anwendung auf die Late‐Stage Markierung von Pharmazeutika

open access: yesAngewandte Chemie, EarlyView.
Wir präsentieren eine metallfreie Methode für die Deuteriummarkierung von Aromaten in deuteriertem HFIP. Dieser Ansatz nutzt die erhöhte Basizität von Aromaten im angeregten Zustand, um den selektiven Wasserstoffisotopenaustausch an schwer zugänglichen Positionen zu ermöglichen.
Eva Rivera‐Chao   +5 more
wiley   +1 more source

The carnivorous plant Genlisea harnesses active particle dynamics to prey on microfauna [PDF]

open access: yesarXiv, 2023
Carnivory in plants is an unusual trait that has arisen multiple times, independently, throughout evolutionary history. Plants in the genus Genlisea are carnivorous, and feed on microorganisms that live in soil using modified subterranean leaf structures (rhizophylls).
arxiv  

A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae) [PDF]

open access: yes, 2017
A description of a new species of podapolipid mite, Tetrapolipus oudemansi, associated with the Philippine cockroach, Panesthia angustipennis (Illiger) is presented. Tetrapolipus blattae (Oudemans 19 11) collected from P.
Husband, Robert W
core   +3 more sources

Zwitterionische Dipeptid‐Oberflächenfunktionalisierung von Detonationsnanodiamant zur Optimierung der Partikeleigenschaften in biologischen Systemen

open access: yesAngewandte Chemie, EarlyView.
In diesem Forschungsartikel wird die Herstellung und systematische Untersuchung neuartiger, zwitterionischer Dipeptid‐funktionalisierter Nanodiamanten zur Gewährleistung der kolloidalen Stabilität über einen breiten pH‐Bereich und in biologischen Medien vorgestellt.
Elisabeth Mayerhoefer   +5 more
wiley   +1 more source

The role of volatiles in aggregation and host-seeking of the haematophagous poultry red mite Dermanyssus gallinae (Acari: Dermanyssidae) [PDF]

open access: yes, 2010
Infestations with ectoparasitic poultry red mites (Dermanyssus gallinae) pose an increasing threat to poultry health and welfare. Because of resistance to acaricides and higher scrutiny of poultry products, alternative and environmentally safe management
Dicke, M., Koenraadt, C.J.M.
core   +2 more sources

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