Results 51 to 60 of about 1,970,120 (380)

In-Situ Particle Acceleration in Extragalactic Radio Hot Spots: Observations Meet Expectations

open access: yes, 2003
We discuss, in terms of particle acceleration, the results from optical VLT observations of hot spots associated with radio galaxies. On the basis of observational and theoretical grounds, it is shown that: 1. relatively low radio-radio power hot spots
Brunetti, G.   +3 more
core   +3 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Integrating sustainable hunting in biodiversity protection in Central Africa: hot spots, weak spots, and strong spots.

open access: yesPLoS ONE, 2014
Wild animals are a primary source of protein (bushmeat) for people living in or near tropical forests. Ideally, the effect of bushmeat harvests should be monitored closely by making regular estimates of offtake rate and size of stock available for ...
Julia E Fa   +6 more
doaj   +1 more source

Bright spots : seeds of a good Anthropocene

open access: yes, 2016
The scale, rate, and intensity of humans’ environmental impact has engendered broad discussion about how to find plausible pathways of development that hold the most promise for fostering a better future in the Anthropocene.
E. Bennett   +21 more
semanticscholar   +1 more source

Tuning the polarization states of optical spots at the nanoscale on the poincar´e sphere using a plasmonic nanoantenna [PDF]

open access: yes, 2010
It is shown that the polarization states of optical spots at the nanoscale can be manipulated to various points on the Poincar´e sphere using a plasmonic nanoantenna.
A. Drezet   +19 more
core   +2 more sources

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

2–4 mm diameter hypo/depigmented dermal spots: ? Objective sign of somatic origin pain

open access: yesIndian Journal of Pain, 2018
It is known that somatic nerves are affected by pathological changes occurring in the corresponding intervertebral discs. However, there is as yet no serological test or biomarker to diagnose disc pathology.
Kritika Doshi
doaj   +1 more source

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

open access: yesFEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta   +3 more
wiley   +1 more source

Prediction of binding hot spot residues by using structural and evolutionary parameters

open access: yesGenetics and Molecular Biology, 2009
In this work, we present a method for predicting hot spot residues by using a set of structural and evolutionary parameters. Unlike previous studies, we use a set of parameters which do not depend on the structure of the protein in complex, so that the ...
Roberto Hiroshi Higa, Clésio Luis Tozzi
doaj   +1 more source

Central retinal artery occlusion without cherry-red spots

open access: yesBMC Ophthalmology, 2023
Background Cherry-red spots are a very important sign for the clinical diagnosis of central retinal artery occlusion (CRAO). We retrospectively summarized the clinical manifestations of CRAO and analysed the causes and characteristics of CRAO without ...
Wei Fan   +3 more
doaj   +1 more source

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