Results 71 to 80 of about 1,265,099 (265)

New geochronological constraints on Late Pleistocene glaciation in the southern Cadí Massif, SE Pyrenees

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva   +5 more
wiley   +1 more source

COSMIC-PopSynth/COSMIC: COSMIC v3.4.8

open access: yes, 2023
What's Changed Nan check by @katiebreivik in https://github.com/COSMIC-PopSynth/COSMIC/pull/576 Remove zsun wind and add NaN catch by @katiebreivik in https://github.com/COSMIC-PopSynth/COSMIC/pull/578 Full Changelog: https://github.com/COSMIC-PopSynth/
Jeff Andrews   +11 more
core   +1 more source

Models of DG‐Carbon Bands in Raman Spectra: Effects of Basis Functions and Initial Values on the Uniqueness and S/N of Fits Obtained for Atmospheric Aerosol Using Automated Methods

open access: yesJournal of Raman Spectroscopy, EarlyView.
Raman spectra containing D/G features are fit using combinations of basis functions and initial conditions. Fits with two Lorentzian functions converged to a single optimized fit even with variation of initial peak positions. For five‐band fits, sometimes the final fit varied with initial conditions, and constraints on peak center position were ...
David C. Doughty, Steven C. Hill
wiley   +1 more source

Sexual dimorphism during integrative endocrine and immune responses to ionizing radiation in mice

open access: yesScientific Reports
Exposure to cosmic ionizing radiation is an innate risk of the spaceflight environment that can cause DNA damage and altered cellular function. In astronauts, longitudinal monitoring of physiological systems and interactions between these systems are ...
Marissa Burke   +17 more
doaj   +1 more source

PAMELA mission: heralding a new era in cosmic ray physics

open access: yesEPJ Web of Conferences, 2014
After seven years of data taking in space, the experiment PAMELA is showing very interesting features in cosmic rays, namely in the fluxes of protons, helium, electrons, that might change our basic vision of the mechanisms of production, acceleration and
Ricciarini S. B.   +63 more
doaj   +1 more source

Review on studies in natural background radiation

open access: yesRadiation Protection and Environment, 2018
The environment around us is radioactive due to background radiation emitted from the sky, earth's crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they arise from ...
Abdu Hamoud Al-Khawlany   +2 more
doaj   +1 more source

Traces of Extra Dimensions in Cosmology [PDF]

open access: yes, 2010
In this thesis, we discuss the observational consequences of extra dimensions on cosmological phenomena. We begin with an overview of extra dimensions, from the initial ideas of Kaluza and Klein to the more recent concept of braneworld models and in ...
O'Callaghan, Eimear Eileen   +1 more
core  

Robust Spectroscopic Analysis Through Image‐Based Spectral Representation and Deep Learning Techniques

open access: yesJournal of Raman Spectroscopy, EarlyView.
This study addresses calibration drift in Raman spectroscopy by transforming 1D spectra into 2D spider plot images processed by pretrained convolutional neural networks. This visualization strategy effectively converts detrimental spectral wavenumber shifts into simple image rotations, allowing the deep learning model to maintain high classification ...
Azadeh Mokari   +2 more
wiley   +1 more source

Cis–Trans Rotational Isomerism of Formic Acid, Sulfur, and Selenium Analogues and Their Dimers: Chemical Kinetics Under Interstellar Conditions

open access: yesInternational Journal of Chemical Kinetics, EarlyView.
ABSTRACT We present chemical kinetic rate constants for the cis to trans isomerisation or rotamerization of monomeric seleno‐, thio‐, and formic acids and that of three of their dimeric species, based on variational transition state theory and multidimensional tunneling calculations in the gas‐phase, from 10 K to 300 K. These provide, firstly, reliable
Judith Wurmel, John M. Simmie
wiley   +1 more source

Education and Training Needs in the Radiation Sciences: Problems and Potential Solutions [PDF]

open access: yes, 2015
This article provides a summary of presentations focused on critical education and training issues in radiation oncology, radiobiology and medical physics from a workshop conducted as part of the 60th Annual Meeting of the Radiation Research Society held
Deye, James   +5 more
core   +1 more source

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