Results 181 to 190 of about 2,839 (212)

Transition metal-mediated reductive coupling of diazoesters

Chemical Communications, 2019
The first transition-metal mediated reductive coupling of diazoesters is reported. The reaction proceeds via a κ2-coordinated intermediate, featuring significant radical character on the terminal nitrogen.
Amanda Grass, Sebastian A. Stoian, Richard L. Lord, Stanislav Groysman   +3 more
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Monte Carlo Transition Dynamics and Variance Reduction

Journal of Statistical Physics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fitzgerald, M., Picard, R. R., Silver, R. N.   +2 more
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Transit Passenger Perceptions of Transit-Related Crime Reduction Measures

Transportation Research Record: Journal of the Transportation Research Board, 2000
Violent crimes against public transit bus operators and passengers in Michigan were studied. The study was funded by the Michigan Department of Transportation and conducted by the University of Michigan in early 1999. A survey approach examined transit passenger perceptions of numerous transit-related crime reduction measures, primarily patrol and ...
Reed, T B, Wallace, R R, RODRIGUEZ, D A
openaire   +2 more sources

Uncertainty Reduction During Job Transitions

Management Communication Quarterly, 1994
Uncertainty reduction theory suggests that employees request more information during job transitions, and that increased levels of communication lead to positive adjustment through reduced stress and role ambiguity, and more task knowledge. Due to differences in experience, employees with different tenure are expected to use different communication ...
openaire   +1 more source

Dimensional reduction near a phase transition

Physical Review D, 1986
The dimensional-reduction hypothesis is tested in theories with a first-order phase transition. Five-dimensional SU(2) lattice gauge theory has a confined phase which resembles the two-dimensional theory; across the phase transition this resemblance is lost and the string tension vanishes.
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Nitrogen Reduction for Transitional Land Uses

Watershed Management 2010, 2010
Identifying pollutant reduction strategies is a key component to meeting total maximum daily loads (TMDLs) for impaired water bodies. Reduction of total nitrogen as a pollutant in stormwater runoff is particularly challenging due to the lower relative treatment efficiencies of structural best management practices (BMPs) such as wet detention ponds ...
Mark Ellard, Thomas Amstadt, Joshua Spence   +2 more
openaire   +1 more source

Hydrazine reduction of transition-metal oxides

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1987
The surface interactions of the thermodynamically stable oxides of the firstrow transition metals with hydrazine, N2H4, have been assessed by X-ray photoelectron spectroscopy (X.p.s.), and the observed reactivity explained on the basis of the oxides' thermodynamic and acid–base properties. Microgravimetry, transmission electron microscopy (TEM) and X.p.
Donald M. Littrell, Daniel H. Bowers, Bruce J. Tatarchuk   +2 more
openaire   +1 more source

Sound Transit Climate Risk Reduction Project

2013
The Climate Risk Reduction Project assessed how climate change may affect Sound Transit commuter rail, light rail, and express bus services. The project identified potential climate change impacts on agency operations, assets, and long-term planning; options for strengthening the agency's resilience to these impacts; and opportunities for integrating ...
Binder, Lara Whitely, Tohver, Ingrid, Snover, Amy, Shatzkin, Amy, Central Puget Sound Regional Transit Authority (Wash.), University of Washington: College of the Environment's Climate Impacts Group   +5 more
openaire   +1 more source

TRANSITION METAL CATALYZED REDUCTIVE VINYLIDENE REACTIONS

2023
Vinylidenes are highly reactive intermediates that undergo a variety of chemical reactions. Our group has pioneered the in-situ generation of vinylidenes from bench stable 1,1-dichloroalkenes using transition metal catalysts and an exogenous reductant.Herein, we demonstrate the intramolecular insertion of vinylidenes into Si–H bonds for the synthesis ...
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Pressure-induced transition-temperature reduction in ZnS nanoparticles

Nanotechnology, 2008
The study of the structural transition in nanoscale materials is of particular interest for their potential applications. In the present study, we have observed a lower temperature T = 250 °C for the phase transition from the sphalerite structure to the wurtzite structure in ZnS nanoparticles under a pressure of 1 GPa, as compared to those, T = 400 and
Cuizhuo, Yang, Yanguo, Liu, Hongyu, Sun, Defeng, Guo, Xiaohong, Li, Wei, Li, Baoting, Liu, Xiangyi, Zhang   +7 more
openaire   +2 more sources