Results 11 to 20 of about 91,188 (220)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+5 more sources

A Bambusuril Receptor Binds Charge Diffuse Anions in Water at Picomolar Concentrations

open access: yesAngewandte Chemie, EarlyView.
Synthesis of a bambusuril macrocycle with unprecedented binding affinity for several charge diffuse anions, including iodide, perchlorate, nitrate, and perrhenate, in neutral phosphate buffer is reported. The macrocycle exhibits selectivity for charge diffuse over charge dense anions exceeding seven orders of magnitude.
Surbhi Grewal   +2 more
wiley   +2 more sources

A linear mass spectrometer by induced Hall potential for electromagnetic isotopic separation working at high pressures [PDF]

open access: yes, 2016
© 2016. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/In this paper a novel alternative for bulk electromagnetic separation working at high pressures is proposed.
Arias Montenegro, Francisco Javier   +1 more
core   +2 more sources

A program for calculating optimum dimensions of alpha radioisotope capsules exposed to varying stress and temperature [PDF]

open access: yes
Method and computer program for calculating creep and optimizing dimensions of capsules filled with alpha-emitting radioisotopes and exposed to varying stress and ...
Nichols, J. P., Winkler, D. R.
core   +2 more sources

Hair radioactivity as a measure of exposure to radioisotopes [PDF]

open access: yes, 1972
Since many radioisotopes accumulate in hair, this tropism was investigated by comparing the radioactivity of shaved with plucked hair collected from rats at various time intervals up to 24 hrs after intravenous injection of the ecologically important ...
Flynn, A.   +3 more
core   +1 more source

Investigation of activation cross-sections of proton induced nuclear reactions on natTl up to 42 MeV: review, new data and evaluation

open access: yes, 2013
Cross-sections of proton induced nuclear reactions on natural thallium have been studied for investigation of the production of the medical important 201Tl diagnostic radioisotope.
Adam-Rebeles, R.   +7 more
core   +1 more source

Defining characteristics of nodal disease on PET/CT scans in patients with HIV-positive and -negative locally advanced cervical cancer in South Africa [PDF]

open access: yes, 2019
Literature reports increased FDG nodal uptake in HIV-positive patients. Our aim is to identify differences in presentation and characteristics of FDG-avid lymph nodes between HIV-positive and HIV-negative locally advanced cervical cancer (LACC) patients ...
Ayeni, Olusegun Akinwale   +4 more
core   +1 more source

Engineered Plasmonic and Fluorescent Nanomaterials for Biosensing, Motion, Imaging, and Therapeutic Applications

open access: yesAdvanced Materials, EarlyView.
A schematic illustration of how noble metals can be used to create nanoparticles (NPs) or nanoclusters (NCs). Noble metal NPs, due to their plasmonic properties, enable photothermal therapy and surface‐enhanced Raman scattering (SERS). In contrast, NCs, which lack a plasmonic resonance band, exhibit fluorescence, making them ideal for bioimaging ...
David Esporrín‐Ubieto   +3 more
wiley   +1 more source

Activation cross-sections of longer lived products of deuteron induced nuclear reactions on ytterbium up to 40 MeV

open access: yes, 2013
In the frame of a systematic study of the activation cross-sections of the deuteron induced nuclear reactions, excitation functions of the natYb(d,xn)177,173,172mg,171mg,170,169Lu, natYb(d,x)175,169Yb and natYb(d,x)173,172,168,167,165Tm reactions are ...
Baba, M.   +7 more
core   +1 more source

Fluorescence Guided Surgery in Gastric Cancer: What Do We Have and What Can We Do?

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background and Objective Fluorescence imaging has emerged as a valuable adjunct in gastric surgery, enhancing resection precision and oncologic outcomes. However, the use of indocyanine green (ICG) remains controversial due to uncertainties in efficacy and administration. A lack of standardized protocols persists.
Chun Zhuang, Han‐Kwang Yang
wiley   +1 more source

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