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Articles 61 - 90 of 412

Full-Text Articles in Chemistry

Esipt-Enabled Alkyne Migration Provides Rapid Access To Benzoxazinones, Andrés G. Muñoz Jan 2022

Esipt-Enabled Alkyne Migration Provides Rapid Access To Benzoxazinones, Andrés G. Muñoz

Electronic Theses and Dissertations

Benozoxazinones have long been of interest to agrochemical scientists and medicinal chemists because of their widespread biological activity. These scaffolds are also of interest to synthetic chemists, who recognize the utility of benzoxazinones for accessing functionalized heterocycles. The use of efavirenz, a benzoxazinone-based reverse transcriptase inhibitor used in the treatment of HIV-1, has brought increased attention to this privileged pharmacophore. While there exist numerous strategies for synthesizing benzoxazinones, methods that do not require the use of acutely toxic and environmentally hazardous reagents are lacking. Consequently, there is a need to develop new methods for constructing this valuable scaffold. Herein, we …


Dynamics And Turnover Of Lipid And Protein Domains In Cells And Supported Bilayers, Alan Weisgerber Jan 2022

Dynamics And Turnover Of Lipid And Protein Domains In Cells And Supported Bilayers, Alan Weisgerber

Electronic Theses and Dissertations

Protein and lipid clustering is an important mechanism for cell processes such as exo- and endo-cytosis and creating functional signaling complexes. It has been seen that both lipids and proteins are involved with the formation of cluster domains on cell membranes, yet little is known about the interplay between the two. In this work I began with visualizing lipid sorting to artificially induced curvature in supported lipid bilayers, with lipid tails affecting the sorting differently to curvature. These results demonstrate that lipids sort to curvature on curved, supported lipid bilayers. The sorting depends on the number of lipids in the …


Investigating Spatiotemporal Kinetics, Dynamics, And Mechanism Of Exosome Release, Anarkali Mahmood Jan 2022

Investigating Spatiotemporal Kinetics, Dynamics, And Mechanism Of Exosome Release, Anarkali Mahmood

Electronic Theses and Dissertations

Exosomes are small lipid-based vesicles that can carry biomolecules from one cell to another. While exosomes are crucial to maintain homeostasis in healthy cells, they are exploited by unhealthy cells to aid disease progression. Exosomes likely facilitate disease progression via the transfer of disease-causing biomolecules from unhealthy to healthy cells. Exosomes are generated in Multivesicular endosomes (MVEs) and are then secreted into the extracellular space to travel to other cells. Despite being a crucial step, very little is known about exosomes release mechanism and dynamics. To further our understanding of exosomes, specifically their secretion, my work has focused on investigating …


Oakland Jan 2022

Oakland

United States Data - California

Relevant Publications

2022 Data Summary


Electron Spin Relaxation Of Nitroxide Spin Labels And Relaxation Processes, Thacien Ngendahimana Jan 2022

Electron Spin Relaxation Of Nitroxide Spin Labels And Relaxation Processes, Thacien Ngendahimana

Electronic Theses and Dissertations

MTSL is the nitroxide spin label that is most commonly used in site-directed spin labeling. However, due to rotation of its gem-dimethyl groups that average anisotropic interactions, Tm becomes short above about 70 K and this makes DEER experiments difficult at these temperatures. Strategies for decreasing spin echo dephasing and electron spin lattice relaxation rates are important for design of nitroxide spin labels and molecular qubits.

In searching for labels with longer Tm, new nitroxide spin labels devoid of gemdimethyl groups or with more rigid structures were synthesized at the University of Nebraska and pulsed EPR measurements …


On-Road Vehicle Emission Measurements And Their Use In Evaluating Emission Control Effectiveness {Presentation}, Gary A. Bishop Jan 2022

On-Road Vehicle Emission Measurements And Their Use In Evaluating Emission Control Effectiveness {Presentation}, Gary A. Bishop

Fuel Efficiency Automobile Test Publications

No abstract provided.


2021 West Los Angeles Data Summary, Gary Bishop Jan 2022

2021 West Los Angeles Data Summary, Gary Bishop

Fuel Efficiency Automobile Test Publications

Simple data summary for 2021 West Los Angeles on-road emission measurements.


2022 Oakland Ca Data Summary, Gary Bishop Jan 2022

2022 Oakland Ca Data Summary, Gary Bishop

Fuel Efficiency Automobile Test Publications

Simple data summary for 2022 on-road vehicle emission measurements from Oakland CA.


The Art Of Poetry And Its Place In The History Of The Coordinating Research Councils Real World Emissions Workshop {Poster}, Gary A. Bishop Jan 2022

The Art Of Poetry And Its Place In The History Of The Coordinating Research Councils Real World Emissions Workshop {Poster}, Gary A. Bishop

Fuel Efficiency Automobile Test Publications

No abstract provided.


On-Road Nox Emissions Evaluation Of The Repair Effectiveness For Recalled Volkswagen Group Light-Duty Diesel Vehicles In The United States, Gary A. Bishop Dec 2021

On-Road Nox Emissions Evaluation Of The Repair Effectiveness For Recalled Volkswagen Group Light-Duty Diesel Vehicles In The United States, Gary A. Bishop

Fuel Efficiency Automobile Test Publications

The admission by the Volkswagen Group in the fall of 2015 that they had duped the United States new vehicle emissions certification testing resulted in perhaps the most expensive violation of U.S. environmental vehicle emission regulations in its history. As part of the subsequent recall of more than 500,000 vehicles in the U.S., owners could sell their vehicles back to the companies or have them repaired. We have used a number of large on-road emission measurement data sets that were routinely collected before and after the recall to evaluate the fuel specific NOx emissions benefit for the vehicles that …


Utah - Perry Port Of Entry 2020, University Of Denver Sep 2021

Utah - Perry Port Of Entry 2020, University Of Denver

FEAT Heavy-Duty Vehicle Measurements

Relevant Publications

Environmental Science & Technology publication.

Utah DEQ Final Report


Washington - Feat Bridge Based Train Measurements 2012, University Of Puget Sound Sep 2021

Washington - Feat Bridge Based Train Measurements 2012, University Of Puget Sound

Non-Road Vehicle Data

Relevant Publications

Atmospheric Environment Publication (2019)


Records Of Enriched Uranium Atmospheric Deposition In Pond Sediments In Piketon, Oh, Brianna Herner, Brian Majestic, Michael Ketterer May 2021

Records Of Enriched Uranium Atmospheric Deposition In Pond Sediments In Piketon, Oh, Brianna Herner, Brian Majestic, Michael Ketterer

DU Undergraduate Research Journal Archive

The enrichment of uranium, often for nuclear weapons programs and commercial nuclear reactors, produces higher concentrations of radioactive uranium 235 (235U) than what naturally occurs, which can pose a human health hazard. The most abundant naturally occurring uranium isotope is 238U, which is still radioactive, however a higher concentration of 235U skews the observed isotopic uranium distribution. The Department of Energy Portsmouth Gaseous Diffusion Plant, located near Piketon, OH, enriched uranium from 1954 to 2001 and 235U pollution has recently been detected in air and sediment samples in the surrounding community. The extent of the …


Taipei Taiwan - 1993 May 2021

Taipei Taiwan - 1993

World Data - Asia

Relevant Publications

Environmental Science & Technology Publication (1995)


Seoul Korea - 1993 May 2021

Seoul Korea - 1993

World Data - Asia

Relevant Publications

Environmental Science & Technology Publication (1995)


Leicester United Kingdom May 2021

Leicester United Kingdom

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


Lisbon Portugal - 1994 May 2021

Lisbon Portugal - 1994

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


Monterrey Mexico - 1995 May 2021

Monterrey Mexico - 1995

World Data - North America

Relevant Publications

Environmental Science & Technology Publication (1997)

Final Report


Tokyo Japan - 1995 May 2021

Tokyo Japan - 1995

World Data - Asia

Relevant Publications

Environmental Science & Technology Publication (1995)


Malaysia - 1995 May 2021

Malaysia - 1995

World Data - Asia

Relevant Publications

Environmental Science & Technology Publication (1995)


Hong Kong - 1993 May 2021

Hong Kong - 1993

World Data - Asia

Relevant Publications

Environmental Science & Technology Publication (1995)


Melbourne - 1992 May 2021

Melbourne - 1992

World Data - Australia

Relevant Publications

Environmental Science & Technology Publication (1995)

Final Report


Milan Italy - 1994 May 2021

Milan Italy - 1994

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


London United Kingdom May 2021

London United Kingdom

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


Hamburg Germany - 1994 May 2021

Hamburg Germany - 1994

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


Edinburgh United Kingdom May 2021

Edinburgh United Kingdom

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)


Toronto Canada - 1990 May 2021

Toronto Canada - 1990

World Data - North America

Relevant Publications

Environmental Science & Technology Publication (1995)

Currents Publication (1991)


Mexico City Mexico May 2021

Auckland - 2003 May 2021

Auckland - 2003

World Data - New Zealand

Relevant Publications

Clean Air and Environmental Quality Publication (2005)


Zurich Switzerland - 1994 May 2021

Zurich Switzerland - 1994

World Data - Europe

Relevant Publications

Environmental Science & Technology Publication (1995)