Search

Results: 6306
Michael Heidelberger, 1933
Dr. Michael Heidelberger. Contributions of Chemistry of the Knowledge of Immune Processes Lecture delivered March 17th, 1933 Posted with permission
Bird Evolution
Daniel J Field
Feb 22, 2019
New fossils help pinpoint when some birds started relying on a seed-based diet and reveal that disparate bill shapes evolved repeatedly throughout bird evolutionary history.
JEFFREY RAVETCH AND MICHAEL YOUNG
Congratulations to Jeffrey Ravetch and Michael Young, recipients of the 2012 Canada Gairdner International Award
The Bird That Flew Backwards
Robin Gow
Jan 01, 0001
The Bird that Flew Backwards examines women poets from literary Modernism in the 1910s and Beat culture in the 1950s. Analyzing these eras in tandem reveals contrasting historical constructions of American womanhood and how...
Published by: Ursinus College
Rigid analytic quantum groups and quantum Arens-Michael envelopes
Nicolas Dupré
Aug 19, 2019
We introduce a rigid analytification of the quantized coordinate algebra of a semisimple algebraic group and a quantized Arens-Michael envelope of the enveloping algebra of the corresponding Lie algebra, working over a...
Organocatalytic Enantioselective Sulfa-Michael Additions to α,β-Unsaturated Diazoketones

Enantioselective sulfa-Michael additions to α,β unsaturated diazocarbonyl compounds have been developed. Quinine-derived squaramide was found to be the best catalyst to promote C-S bond formation in a highly stereoselective...

Thomas and Bird Tapped for University's Teaching Awards
Winthrop University
Jan 01, 0001
Marketing Professor Jane Thomas will receive the Kinard Award for teaching. English Professor John Bird will serve as the Thompson Scholar to help teach critical thinking.
Published by: Winthrop University
Simulation-based reconstruction of global bird migration over the past 50,000 years.
Migration is a widespread response of birds to seasonally varying climates. As seasonality is particularly pronounced during interglacial periods, this raises the question of the significance of bird migration during past...
Published by: Nature Communications
Organocatalytic Enantioselective Sulfa-Michael Additions to α,β-Unsaturated Diazoketones

Enantioselective sulfa-Michael additions to α,β unsaturated diazocarbonyl compounds have been developed. Quinine-derived squaramide was found to be the best catalyst to promote C-S bond formation in a highly stereoselective...

English Professor John Bird Discovers Never-Before-Published Mark Twain Children's Story
Winthrop University
Jan 01, 0001
Called "The Purloining of Prince Oleomargarine," it is the story of a young boy who eats a flower sprouted by a magical seed and gains the ability to talk to animals. Bird said he spotted Twain's notes on the story while...
Published by: Winthrop University
Simulation-based reconstruction of global bird migration over the past 50,000 years.
Migration is a widespread response of birds to seasonally varying climates. As seasonality is particularly pronounced during interglacial periods, this raises the question of the significance of bird migration during past...
Density Functional Theory Transition-State Modeling for the Prediction of Ames Mutagenicity in 1,4 Michael Acceptors

Assessing the safety of new chemicals, without introducing the need for animal testing, is a task of great importance. The Ames test, a widely used bioassay to assess mutagenicity, can be an expensive, wasteful process with...

Riparian reserves help protect forest bird communities in oil palm dominated landscapes
Conversion of forest to oil palm agriculture is a significant and ongoing threat to tropical biodiversity. Despite this, little is known about the value of riparian reserves in oil palm and how these conservation set‐asides...
Density Functional Theory Transition-State Modeling for the Prediction of Ames Mutagenicity in 1,4 Michael Acceptors

Assessing the safety of new chemicals, without introducing the need for animal testing, is a task of great importance. The Ames test, a widely used bioassay to assess mutagenicity, can be an expensive, wasteful process with...

Mortality cost of sex-specific parasitism in wild bird populations
Sex-specific mortality is frequent in animals although the causes of different male versus female mortalities remain poorly understood. Parasitism is ubiquitous in nature with widespread detrimental effects to hosts, making...
Eliminating Transition State Calculations for Faster and More Accurate Reactivity Prediction in Sulfa-Michael Additions Relevant to Human Health and the Environment
Fast and accurate computational approaches to predicting reactivity in sulfa-Michael additions are required for high-throughput screening in toxicology (e.g., predicting excess aquatic toxicity and skin sensitization), chemical...
Mortality cost of sex-specific parasitism in wild bird populations
Sex-specific mortality is frequent in animals although the causes of different male versus female mortalities remain poorly understood. Parasitism is ubiquitous in nature with widespread detrimental effects to hosts, making...
On the maintenance of bird song dialects
Many bird species, especially song birds but also for instance some
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
Microfiltration of high concentration black tea streams for haze removal using polymeric membranes
Black tea used for ready-to-drink beverages suffers from an inherent haze problem affecting the appeal of products in terms of colour and appearance; the effect also diminishes health-giving properties. Microfiltration of black...
Gum arabic fractionation using synthetic membranes
The fractionation of 2 wt% gum arabic using 0.1, 0.5 and 0.8 μm polysulfone (PS) flat sheet membranes is investigated. Fluxes of between 35 and 80 L m−2 h−1 were achieved during diafiltration experiments at cross-flow velocities...
On the maintenance of bird song dialects
Many bird species, especially song birds but also for instance some
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
Gum arabic fractionation using synthetic membranes
The fractionation of 2 wt% gum arabic using 0.1, 0.5 and 0.8 μm polysulfone (PS) flat sheet membranes is investigated. Fluxes of between 35 and 80 L m−2 h−1 were achieved during diafiltration experiments at cross-flow velocities...

|<

<

1

2

3

4

5

>

>|