Results 181 to 190 of about 310,877 (350)

Contrast by electron microscopy in thick biological specimens

open access: yesJournal of Microscopy, EarlyView.
Abstract The contributions of coherent bright‐field phase and incoherent dark‐field amplitude contrast are investigated for thick biological specimens. A model for a T4 phage is constructed and images simulated for both TEM and STEM phase contrast using a multislice code.
Peter Rez   +3 more
wiley   +1 more source

Comparative attraction of Anopheles quadriannulatus and Anopheles arabiensis to humans estimated by comparing their relative abundance in samples of mosquito larvae and adults collected across an ecologically heterogeneous landscape in southern Tanzania Utafiti wa kulinganisha mvuto wa mbu aina ya Anopheles arabiensis na Anopheles quadriannulatus kwa binadamu katika mandhari yenye mazingira mbalimbali kusini mwa Tanzania

open access: yesMedical and Veterinary Entomology, EarlyView.
Light and barrier traps near human activity selectively captured more Anopheles arabiensis, indicating a strong attraction to humans and explicit bias in adult sampling methods. Traps placed in open glades away from humans captured species proportions similar to larval samples, suggesting reduced sampling bias in those settings. Visits by entomological
Deogratius R. Kavishe   +8 more
wiley   +1 more source

Characteristics of Four New Drug-Resistant Strains of Plasmodium falciparum from South-East Asia [PDF]

open access: bronze, 1969
D. F. Clyde   +4 more
openalex   +1 more source

A Worldwide Map of Plasmodium falciparum K13-Propeller Polymorphisms.

open access: yesNew England Journal of Medicine, 2016
D. Ménard   +88 more
semanticscholar   +1 more source

Extended time to maturity in Anopheles coluzzii: Implications of late egg hatch for vector control and transgene fitness

open access: yesMedical and Veterinary Entomology, EarlyView.
The fitness of Anopheles coluzzii mosquito lines (VK strain) selected for early and late egg hatching was compared with each other and a reference strain (Mopti). There was an observed increase in fitness in fecundity and survival among the late‐hatching lines, but no negative effects of selection on fecundity and adult survival were detected.
Emmanuel C. Ottih   +3 more
wiley   +1 more source

Modelling vector and host distributions to inform potential disease risk: A case study of West Nile virus in the United Kingdom

open access: yesMedical and Veterinary Entomology, EarlyView.
Correlative modelling approaches can be used successfully to predict the distribution of vectors and hosts involved in vector‐borne diseases of concern. For West Nile virus in the United Kingdom, host distributions are unlikely to be a significant factor influencing change. Vector distributions and urbanisation will drive increasing risk. Projecting to
Amy J. Withers   +4 more
wiley   +1 more source

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