Results 91 to 100 of about 2,581 (269)

Colonial Waterbird Nesting on West Sister Island National Wildlife Refuge and the Arrival of Double-Crested Cormorants

open access: yes, 1997
Recent survey data have shown the importance of West Sister Island National Wildlife Refuge, Lake Erie, to nesting waders. About 40 percent of all herons and egrets nesting in the U.S.
Martin, Larry, Shieldcastle, Mark C.
core   +1 more source

Polarity on Demand: Nucleophilic, Electrophilic, and Ambiphilic Reactivity at a 9,10‐Dihydro‐9,10‐Disilaanthracene Platform

open access: yesChemistry – A European Journal, EarlyView.
A 9,10‐dihydro‐9,10‐disilaanthracene platform was efficiently synthesized and features intrinsically electrophilic Si sites. Upon stepwise reductive Si─H bond cleavage, these Si sites are converted into nucleophilic centers. This controlled polarity switching also enables ambiphilic reactivity within a homo‐heteroelement framework.
Moritz Schmidt   +4 more
wiley   +1 more source

2014: Ewelina is Crowned Cocktail Champion

open access: yes, 2014
2014 Mixer Open Cocktail Competition: Ewelina Cygarowska of Lemongrass Restaurant, Citywest Hotel, Saggart, Co. Dublin was crowned cocktail champion at the recent ‘Mixer OPEN Cocktail Competition’ which took place recently at the Parnell Heritage Pub ...
Murphy, James Peter
core  

Semiconducting Single‐Wall Antimony Oxide Nanotubes and Oxidotritelluridoantimonate(V) Anions

open access: yesChemistry – A European Journal, EarlyView.
Antimony(V) binds directly to tellurium(−II) in the (SbOTe3)3− anion. The latter has been found between Sb2O3 nanotubes in a microporous cetineite structure. The Sb2O3 nanotube is positively polarized on its outer surface and negatively polarized on its inner surface, corresponding to a cylindrical capacitor. Substantial charge transfer from the anions
Huanyu He   +3 more
wiley   +1 more source

Prism[5]MaxQ: A Sulfated Prism[5]Arene and Its Molecular Recognition Properties Toward a Panel of Quaternary Ammonium Guests

open access: yesChemistry – A European Journal, EarlyView.
We report the synthesis and characterization of a sulfated prism[5]arene host (Prism[5]MaxQ). Prism[5]MaxQ displays ultrahigh binding affinity (Ka up to 1012 M−1) toward hydrophobic (di)cations in phosphate‐buffered saline (PBS). The work positions Prism[5]MaxQ as a new member of the family of ultrahigh‐affinity hosts poised for use as a sequestrant in
Emmanuel A. Bazan‐Bergamino   +1 more
wiley   +1 more source

Two-Line Inscription in Mirrored Greek Characters

open access: yes
Ithyphallic baboon standing to right, with paws raised in greeting, head crowned with what looks like the double feather crown, an atef crown according to Bonner. In front of the feet, a cobra erect on its tail. Bonner, SMA: page 294; plate XII (D. 246).;

core   +1 more source

Combining pyrazolate and N-heterocyclic carbene coordination motifs: Synthesis and characterization of a double-crowned silver complex

open access: yes, 2008
Reaction of Ag2O with the N-heterocyclic carbene (NHC) precursors 3,5-bis[3-(2,4,6-trimethylphenyl)imidazolium-1-ylmethyl]-1H-pyrazole bishexafluorophosphate (1a) and 3,5-bis[3-(2,6-diisopropylphenyl)imidazolium-1-ylmethyl]-1H-pyrazole ...
Scheele, Ulrich Juergen   +4 more
core   +1 more source

Exploring Calixarene‐Based Pseudorotaxane Architectures: Threading Ammonium Axles With an Exo‐Rim π‐Functionalized Calix[6]Arene Macrocycle

open access: yesChemistry – A European Journal, EarlyView.
This research presents a novel 1,4‐π‐functionalized calix[6]arene with enhanced interactions with dialkylammonium axles. We investigate threading behavior in CDCl3, highlighting how exo‐rim π‐functionalization affects binding affinity and stereoselectivity.
Veronica Iuliano   +7 more
wiley   +1 more source

Metal‐Ion Regulated Light‐Free Z→E Isomerization of Azobenzene Glycomacrocycle

open access: yesChemistry – A European Journal, EarlyView.
Metal ion‐catalyzed Z→E isomerization of photoswitchable azobenzene glycomacrocycle: A new azobenzene‐based glycomacrocycle is capable of forming a 1:1 complex with divalent metal ions in both E‐ and Z‐isomers. The complexes undergo light‐free Z→E isomerization in a timescale spanning from seconds to weeks.
Yang Zhou   +4 more
wiley   +1 more source

Synagogue Beit Israel (House of Israel), 1953, Sisli Quarter, Istanbul

open access: yes, 1996
Many Jews have moved in recent years from the historic Jewish quarters of Balat, Haskoy and Galata to the outerlying districts of Istanbul, such as Sisli.
Jarvis, Devon photographer   +1 more
core  

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