Results 181 to 190 of about 10,364,489 (286)

Designing a Triplet 2‐Formylphenylnitrene With Fast Tunneling Reactivity

open access: yesChemistry – A European Journal, EarlyView.
A 3‐CF3 substituent accelerates tunneling in triplet 2‐formylphenylnitrene, making its reactivity in cryogenic matrices too fast for conventional IR spectroscopic detection. Bringing this chemistry to low‐temperature solutions allows suppression of intrinsic nitrene dimerization through faster cyclization, which even outcompetes the 1,4‐H shift ...
Sofia Braz   +4 more
wiley   +1 more source

Preproduction and design for animation

open access: yes, 2012
The main production of an animation work is a task done by the cooperation and work of different people with a large artistic talent. This Final Degree Project is divided in two main chapters, both focused in the character development process. Here I develop some of the characters that were previously sketched and vectorized, and I prepare them for a ...
openaire   +1 more source

Model selection for causal inference in missing exposure problems

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In causal inference, properly selecting the propensity score (PS) model is an important topic and has been widely investigated in observational studies. However, there are very few studies investigating the model selection issue for causal inference when the exposure is missing at random (MAR). When the exposure variable contains missing data,
Yuliang Shi, Yeying Zhu, Joel A. Dubin
wiley   +1 more source

extBatchMarking: An R package for hidden Markov models for extended batch data

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We describe a new R package for extended batch‐mark methods. Extended batch marking is a valuable and efficient technique for estimating population sizes and survival probabilities of wild animals. It assigns the same identifier to a group of animals simultaneously, allowing researchers to track their survival over time.
Kehinde Olobatuyi   +4 more
wiley   +1 more source

Captivated by Kinesin

open access: yesCytoskeleton, EarlyView.
ABSTRACT Few proteins have inspired as much curiosity as kinesin. Since its discovery 40 years ago, kinesin has become one of the best understood molecular machines in biology, yet it continues to reveal new questions about how cells organize and move their contents.
Ronald D. Vale
wiley   +1 more source

Student Perceptions of a Virtual Reality Animation for Teaching Absorption and Bioavailability in Pharmacology: A Mixed Methods Evaluation. [PDF]

open access: yesPharmacol Res Perspect
Berg JA   +12 more
europepmc   +1 more source

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