Results 61 to 70 of about 1,414,227 (375)

The effectiveness of backward contact tracing in networks

open access: yes, 2020
Discovering and isolating infected individuals is a cornerstone of epidemic control. Because many infectious diseases spread through close contacts, contact tracing is a key tool for case discovery and control.
Ahn, Yong-Yeol   +4 more
core   +1 more source

δ13C tracing of dissolved inorganic carbon sources in major world rivers [PDF]

open access: yes, 2005
δ13C tracing of dissolved inorganic carbon sources in major world ...
Bray, Colin   +4 more
core   +3 more sources

Differentiable Monte Carlo ray tracing through edge sampling

open access: yesACM Transactions on Graphics, 2018
Gradient-based methods are becoming increasingly important for computer graphics, machine learning, and computer vision. The ability to compute gradients is crucial to optimization, inverse problems, and deep learning.
Tzu-Mao Li   +3 more
semanticscholar   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

open access: yesFEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue   +6 more
wiley   +1 more source

Contrasting magma chemistry in the Candelaria IOCG district caused by changing tectonic regimes

open access: yesScientific Reports
Iron oxide-copper-gold (IOCG) deposits are a vital source of copper and critical elements for emerging clean technologies. Andean-type IOCG deposits form in continental arcs undergoing extension, and they have a temporal relationship with magmatism ...
R. Romero   +6 more
doaj   +1 more source

Ray tracing program with options for diffraction gratings [PDF]

open access: yes, 1971
Diffraction theory, developed in vectorial form and coded into ray tracing routines, permits tracing rays of any wavelength through surfaces that are plane, spherical, conical, or aspheric polynomial.
Howell, B. J.
core   +1 more source

Tracing evolutionary links between species [PDF]

open access: yes, 2014
The idea that all life on earth traces back to a common beginning dates back at least to Charles Darwin's {\em Origin of Species}. Ever since, biologists have tried to piece together parts of this `tree of life' based on what we can observe today ...
Steel, Mike
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Tracing participants for longitudinal environmental health research using social networking sites: a pilot study [PDF]

open access: yesExploration of Digital Health Technologies
Aim: Longitudinal cohort study designs are considered the gold standard for investigating associations between environmental exposures and human health yet they are characterized by limitations including participant attrition, and the resource ...
Rogih Riad Andrawes   +4 more
doaj   +1 more source

X-ray tracing using Geant4

open access: yes, 2008
We describe an extension to the Geant4 software package that allows it to be used as a general purpose X-ray tracing package. We demonstrate its use by building a model of the X-ray optics of the XMM-Newton, calculating its effective area, and comparing ...
Agostinelli   +8 more
core   +1 more source

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