Results 71 to 80 of about 5,504,773 (297)
United States, northern border 1878
, 1878 Index map title: Index map, Joint Series. Shows the United States and Canadian border from the summit of the Rocky Mountains to the northwest angle of the Lake of the Woods. Relief shown by hachures and spot heights. Title from second sheet. First sheet
United States Northern Boundary Commission
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The Penrose-Fife phase-field model with coupled dynamic boundary conditions
, 2014 In this paper we derive, starting from the basic principles of thermodynamics, an extended version of the nonconserved Penrose-Fife phase transition model, in which dynamic boundary conditions are considered in order to take into account interactions ...
SEGATTI, ANTONIO GIOVANNI +6 more
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Uniqueness in a two phase free boundary problem [PDF]
, 2001 We investigate a two-phase free-boundary problem in heat propagation that in classical terms is formulated as follows: to find a continuous function u(x, t) defined in a domain D ⊂ RN × (0, T) which satisfies the equation ∆u + Σ ai uxi − ut = 0 whenever ...
Lederman, Claudia Beatriz +2 more
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Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Series 7: Press releases [PDF]
, 1946 Series consists of a number of press releases regarding the upcoming Boundary Centennial ...
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FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
, 1998 This document integrates official ground-water data from the United States and Mexico into one data base. These data were exchanged during a series of official meetings held in the offices of the Comisión Internacional de Limites y Aguas and the ...
International Boundary and Water Commission (IBWC)
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Analysis of Model Results for the Turning of the Wind and Related Momentum Fluxes in the Stable Boundary Layer [PDF]
, 2009 The turning of wind with height and the related cross-isobaric (ageostrophic) flow in the thermally stable stratified boundary layer is analysed from a variety of model results acquired in the first Global Energy and Water Cycle Experiment (GEWEX ...
Svensson, G. +3 more
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