Results 71 to 80 of about 7,455,139 (262)

Super-regularity in local rings

Journal of Pure and Applied Algebra, 1976
for which the bi-functor Extz(-, -) is non-vanishing) is quite independent from the weak (or Tor -) dimension of A (i.e. the last integer n for which the bi-functor Tort (-, -) is non-vanishing). En this note we show that equality of these dimensions in local rings is related to phenorn- ena of finiteness of prime ideals.
openaire   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Research Communication: An International Tree-Ring Isotope Data Bank—A Proposed Repository For Tree-Ring Isotopic Data

, 2009
The International Tree-Ring Data Bank (ITRDB) is an invaluable resource, providing access to a massive and growing cache of tree-ring data. Oxygen, carbon, nitrogen and hydrogen isotope treering studies, which have provided valuable climatic and ...
Csank, Adam Z.
core   +3 more sources

A supply-limited torrent that does not feel the heat of climate change

Nature Communications
Debris-flow activity in the Alps is anticipated to undergo pronounced changes in response to a warming climate. Yet, a fundamental challenge in comprehensively assessing changes in process activity is the systematic lack of long-term observational debris-
Jiazhi Qie, Adrien Favillier, Frédéric Liébault, Juan Antonio Ballesteros Cánovas, Jérôme Lopez-Saez, Sébastien Guillet, Loïc Francon, Yihua Zhong, Markus Stoffel, Christophe Corona   +9 more
doaj   +1 more source

Chiral Pseudo-D_6h Dy(III) Single-Molecule Magnet Based on a Hexaaza Macrocycle

Molecules
A mononuclear complex [Dy(phenN6)(HL′)2]PF6·CH2Cl2 (H2L′ = R/S-1,1′-binaphthyl-2,2′-diphenol) with local D6h symmetry was synthesized. Structural determination shows that Dy3+ was encapsulated within the coordination cavity of the neutral hexaaza ...
Jia-Hui Liu, Yi-Shu Jin, Jinkui Tang, Cai-Ming Liu, Yi-Quan Zhang, Hui-Zhong Kou   +5 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Computer-Assisted Quality Control in Tree-Ring Dating and Measurement

, 1983
This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring research at The University of Arizona.
Holmes, Richard L.
core   +4 more sources

Metastability, chaos, and spectrum tomography for Bose-Hubbard rings and chains

Physical Review Research
We analyze the metastability of Bose-Hubbard condensates for finite-size one-dimensional ring lattices and open chains, using a semiclassical tomographic perspective that emphasizes the relation of the many-body spectrum to the underlying classical phase-
Rajat, Doron Cohen
doaj   +1 more source

Directed unions of local quadratic transforms of a regular local ring

Journal of Algebra, 2017
We consider the directed union S of an infinite sequence {(R_n, m_n)} of successive local quadratic transforms of a regular local ring (R, m). If dim R = 2, Abhyankar proves that S is a valuation ring. If dim R > 2, Shannon gives necessary and sufficient conditions for S to be a rank 1 valuation domain and Granja gives necessary and sufficient ...
Heinzer, William, Kim, Mee-Kyoung, Toeniskoetter, Matthew   +2 more
openaire   +3 more sources

One the P-Adic Local Invariant Cycle Theorem [PDF]

, 2012
The aim of this paper is to consider the $p$-adic local invariant cycle theorem in the mixed characteristic case. In the first part of the paper, via case-by-case discussion, we construct the $p$-adic specialization map, and then write out the ...
Wu, Yi-Tao
core   +1 more source