Results 21 to 30 of about 7,038,490 (299)

The dynamics of questing ticks collected for 164 consecutive months off the vegetation of two landscape zones in the Kruger National Park (1988–2002). Part I. Total ticks, Amblyomma hebraeum and Rhipicephalus decoloratus

open access: yesOnderstepoort Journal of Veterinary Research, 2011
Despite a large number of studies on tick biology, there is limited information on long- term changes in tick populations. This study thus aimed to assess the long-term population dynamics of questing ixodid ticks in two landscape zones of the Kruger ...
Ivan G. Horak   +2 more
doaj   +1 more source

Stochastic epidemics in growing populations [PDF]

open access: yes, 2013
Consider a uniformly mixing population which grows as a super-critical linear birth and death process. At some time an infectious disease (of SIR or SEIR type) is introduced by one individual being infected from outside.
Britton, Tom, Trapman, Pieter
core   +2 more sources

Genetic polymorphisms of pharmacogenomic VIP variants in the Dai population from Yunnan province

open access: yesMolecular Genetics & Genomic Medicine, 2020
Background Pharmacogenomics plays a crucial role in individualized therapy, but the variant information of pharmacogenomics in the Dai population is limited.
Yujing Cheng   +5 more
doaj   +1 more source

Comparison of several populations of Norway lobster, Nephrops norvegicus L., from the Mediterranean and adjacent Atlantic. A biometrics study

open access: yesScientia Marina, 1998
Six populations of Nephrops norvegicus were compared using canonical variate analysis on morphometric characters. The areas where the samples were obtained were the south coast of Portugal (Algarve) in the Atlantic and five areas in the Mediterranean ...
Margarida Castro   +2 more
doaj   +1 more source

Radio pulsar populations

open access: yes, 2010
The goal of this article is to summarize the current state of play in the field of radio pulsar statistics. Simply put, from the observed sample of objects from a variety of surveys with different telescopes, we wish to infer the properties of the ...
A Possenti   +64 more
core   +1 more source

Norway spruce phenotype variability determined by needle anatomy in Bohemian Forest compared to other regions of the Czech Republic

open access: yesJournal of Forest Science, 2022
Young trees (saplings) of the Norway spruce (Picea abies [L.] Karst.) regenerating populations were analysed on 7 plots in the Šumava Mts. (Bohemian Forest), on 5 plots in the Jeseníky Mts. (Eastern Sudetes), and 1 plot in the Krkonoše (Giant Mts.).
Karel Matějka, Václav Krpeš
doaj   +1 more source

Stellar Populations in Bulges

open access: yes, 2005
We present line strengths in the bulges and inner disks of 38 galaxies in the local universe, including several galaxies whose bulges were previously identified as being disk-like in their colors or kinematics, to see if their spectral properties reveal ...
Holtzman, Jon A., Moorthy, Bhasker K.
core   +1 more source

X-ray populations in galaxies

open access: yes, 2005
Today's sensistive, high resolution Chandra X-ray observations allow the study of many populations of X-ray sources. The traditional astronomical tools of photometric diagrams and luminosity functions are now applied to these populations, and provide the
Belczynski   +31 more
core   +1 more source

Semigroup analysis of structured parasite populations [PDF]

open access: yes, 2009
Motivated by structured parasite populations in aquaculture we consider a class of size-structured population models, where individuals may be recruited into the population with distributed states at birth.
Borges   +15 more
core   +2 more sources

Aploneura lentisci (Homoptera: Aphididae) and its interactions with fungal endophytes in perennial ryegrass (Lolium perenne)

open access: yesFrontiers in Plant Science, 2016
Aploneura lentisci Pass. is endemic to the Mediterranean region where it is holocyclic, forming galls on its primary host, Pistacia lentiscus and alternating over a 2 year period between Pistacia and secondary hosts, principally species of Graminae. This
Alison Jean Popay, Neil Cox
doaj   +1 more source

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