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Helium

Known as: He, He element, Helium [Chemical/Ingredient] 
Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not… Expand
National Institutes of Health

Papers overview

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Highly Cited
2012
Highly Cited
2012
Porous Membranes Thin semi-permeable membranes are commonly used as chemical barriers or for filtration purposes. While the size… Expand
Highly Cited
2011
Highly Cited
2011
Satellite measurements challenge the current understanding of cosmic-ray acceleration and propagation in our Galaxy. Protons and… Expand
Review
2005
Review
2005
Five years after the last prostatic carcinoma grading consensus conference of the International Society of Urological Pathology… Expand
Highly Cited
2004
Highly Cited
2004
When liquid 4He is cooled below 2.176 K, it undergoes a phase transition—Bose–Einstein condensation—and becomes a superfluid with… Expand
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Review
2004
Review
2004
Herein, recent experiments on the spectroscopy and chemical reactions of molecules and complexes embedded in helium droplets are… Expand
Highly Cited
2003
Highly Cited
2003
Solar photospheric and meteoritic CI chondrite abundance determinations for all elements are summarized and the best currently… Expand
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Highly Cited
2000
Highly Cited
2000
High-precision stepped-heating experiments were performed to better characterize helium diffusion from apatite using Durango… Expand
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Highly Cited
1995
Highly Cited
1995
Abstract A giant magnetoresistance ratio of 30% at 4.2 K and 18% at 300 K was observed for the first time in an Fe/Al2O3/Fe… Expand
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Highly Cited
1995
Highly Cited
1995
Helium and heavy-element diffusion are both included in precise calculations of solar models. In addition, improvements in the… Expand
Highly Cited
1959
Highly Cited
1959
Abstract A B.C.S. type of theory (see Bardeen , Cooper and Schreiffer , Phys. Rev. 108, 1175 (1957)) is sketched for very dirty… Expand