Results 151 to 160 of about 11,215 (247)

Designing the First Hydroxylamine Substituted Tetrazole With N,O‐Dimethylhydroxylamine

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Despite decades of tetrazole chemistry, hydroxylamine‐substituted variants have remained unknown. This work reports the first synthesis of a 5‐hydroxylamine substituted tetrazole via cyanogen azide and N,O‐dimethylhydroxylamine, yielding the free‐base compound and its hydrochloride salt.
Jake E. Zuckerman   +3 more
wiley   +1 more source

Reba Hardman

open access: yes, 1941
Reba Hardman is pictured her school year at Roosevelt Elementary. She is the daughter of John W. and Myrtle Hardman.

core  

Future Challenges and Opportunities for the Viability of Animal Populations in Zoos and Aquariums

open access: yesZoo Biology, EarlyView.
ABSTRACT Maintaining sustainable animal populations is fundamental to zoo and aquarium missions in education, visitor engagement, entertainment, scientific advancement, public health and wellbeing, advocacy, and conservation impact. Yet, sustaining viable populations remains a persistent challenge.
Lisa J. Faust   +18 more
wiley   +1 more source

Design and performance of a capacitor‐based burn‐through monitor for high‐power X‐ray beams at XFEL facilities

open access: yesJournal of Synchrotron Radiation, EarlyView.
We present the results of testing 92 prototypes of a capacitor‐based burn‐through monitor at the LCLS XCS and XPP endstations. We quantify the beam energy density thresholds required to induce a detectable high‐voltage electrical short prior to complete burn‐through and demonstrate the reliability of this scalable, low‐cost solution for machine and ...
Willem Langeveld   +19 more
wiley   +1 more source

Hydrodynamic gradients affect facilitation in soft sediment communities

open access: yesJournal of Animal Ecology, EarlyView.
This study extends ecological theory on facilitation to marine soft‐sediment systems and offers insight into the functional role of habitat‐forming infauna. Abstract Positive species interactions, or facilitation, are fundamental drivers of ecological community assembly and stability.
Rebecca V. Gladstone‐Gallagher   +14 more
wiley   +1 more source

Archiving the History of Environmentalism: Insights from Academia and Practice

open access: yesHistory, EarlyView.
Abstract This Forum considers the current state of archiving for the environmental movement at local, national and international levels. It responds to a gap that researchers of environmentalism have long been aware of, but one that is poorly understood from the perspective of records management and collections development practice.
Henry Irving   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy