Results 71 to 80 of about 866,916 (124)

CHEMICALLY MODIFIED PHOTOSYNTHETIC BACTERIAL REACTION CENTERS: CIRCULAR DICHROISM, RAMAN RESONANCE, LOW TEMPERATURE ABSORPTION, FLUORESCENCE AND ODMR SPECTRA AND POLYPEPTIDE COMPOSITION OF BOROHYDRIDE TREATED REACTION CENTERS FROM Rhodobacter sphaeroides R26 [PDF]

open access: yes, 1988
Reaction centers from Rhodobacter sphaeroides have been modified by treatment with sodium borohydride similar to the original procedure [Ditson et al., Biochim. Biophys. Acta 766, 623 (1984)], and investigated spectroscopically and by gel electrophoresis.
A. Angerhofer   +11 more
core   +1 more source

Superpiles: The Impact of Mantle Temperature on Large Low Velocity Provinces

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Among the most prevalent features in Earth's deep mantle are the Large Low Velocity Provinces (LLVPs), hypothesized to be hotter and compositionally distinct from the surrounding mantle. LLVPs have previously been viewed as either active superplumes rising through the mantle or passive piles shaped by large scale convection.
Heidi N. Krauss, Allen K. McNamara
wiley   +1 more source

High‐Resolution Temperature and Precipitation Variability in Northeast Asia Since the Last Glacial Maximum Recorded in an Annually Laminated Maar Lake

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Temperature and precipitation variability in monsoonal Asia is central to understanding regional climate dynamics and global teleconnections. How post‐LGM warming and hydroclimate change unfolded in Northeast Asia, and how they were linked to external forcing, remain poorly constrained.
Deke Xu   +19 more
wiley   +1 more source

In Situ Observation of Pressure‐Enhanced Hydrous–Anhydrous Solid Solution in Lower‐Mantle SiO2–AlOOH Phases

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Water plays a critical role in Earth's mantle dynamics and evolution, yet lower‐mantle storage mechanisms remain debated. δ‐AlOOH and SiO2 phases have been independently proposed as high‐pressure water hosts. Here, we conducted in situ synchrotron X‐ray diffraction experiments with a multi‐anvil apparatus and sintered diamond anvils to ...
M. Nishi   +10 more
wiley   +1 more source

Modeling and simulation of call centers.

open access: yes, 2006
In this review, we introduce key notions and describe the decision problems commonly encountered in call center management. Main themes are the central role of uncertainty throughout the decision hierarchy and the many operational complexities and ...
L'Ecuyer, P.   +3 more
core   +1 more source

Tracing Mantle Upwellings Beneath Changbaishan/Mount Paektu: New Insights From Transition Zone Discontinuity Structure

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Intraplate volcanism in Northeast Asia, located in a distant back‐arc setting, challenges conventional models of mantle convection and volatile cycling. Using receiver function data from over 300 broadband stations, we image the mantle transition zone (MTZ) beneath the Changbaishan/Paektu volcano.
Cunrui Han   +6 more
wiley   +1 more source

Integrated tectonic studies: A new concept explored in the geodynamic laboratory of the space research center in Ksiaz [PDF]

open access: yesActa Geodynamica et Geomaterialia, 2015
Kaczorowski, Marek   +5 more
openaire   +1 more source

Cross-Border Investment in Small International Financial Centers [PDF]

open access: yes
We document and assess the role of small financial centers in the international financial system using a newly-assembled dataset. We present estimates of the foreign asset and liability positions for a number of the most important small financial centers,
Philip Lane, Gian Maria Milesi-Ferretti
core  

South Carolina Centers of Economic Excellence SmartState Program program guidelines [PDF]

open access: yes, 2012
The South Carolina Centers of Economic Excellence publishes a guide for endowing professorships through the COEE program at South Carolina’s three research universities.
South Carolina Centers of Economic Excellence
core  

Incorporating metamorphism in geodynamic models: the mass conservation problem

open access: yes, 2011
Geodynamic models incorporating metamorphic phase transformations almost invariably assume the validity of the Boussinesq approximation that violates conservation of mass.
Connolly, James A. D.   +9 more
core   +1 more source

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