Results 41 to 50 of about 56,921 (146)

User producer interaction in context: a classification [PDF]

open access: yes, 2009
Science, Technology and Innovation Studies show that intensified user producer interaction (UPI) increases chances for successful innovations, especially in the case of emerging technology.
Moors, Ellen, Nahuis, Roel, Smits, Ruud
core   +2 more sources

Pure Molecular Inorganic Rings: Mixed Group 14/15 Metallacycles

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
The synthesis and characterization of novel mixed group 14/15 metallacycles incorporating a transition‐metal is described. All of the presented compounds were obtained by reduction of an organometallic Mo2E2 tetrahedrane using Si(I) and Ge(I) compounds, respectively.
Stefanie Maier   +5 more
wiley   +2 more sources

A report on child cycling safety [PDF]

open access: yes, 2001
The research project identifies and examines various issues related to the cycling safety of urban school children in Hamilton aged between eight and 15 years of age in Hamilton.
Balloch, Rowan   +4 more
core  

Peak V̇O2Q${\dot V_{{{\mathrm{O}}_2}{\mathrm{Q}}}}$: A new approach for the interpretation of cardiorespiratory fitness estimates

open access: yesExperimental Physiology, EarlyView.
Abstract There are difficulties with the standardisation of interpretative strategies for peak oxygen uptake (peak V̇O2${\dot V_{{{\mathrm{O}}_2}}}$) related to the quality of reference equations. We aimed to investigate the utility of peak V̇O2Q${\dot V_{{{\mathrm{O}}_2}{\mathrm{Q}}}}$, a novel method reflecting how far a measured value is from the ...
Ben Knox‐Brown   +4 more
wiley   +1 more source

Making Blank Faces Expressive: Chemical Approaches to the Modification of Chemically Inert Peptides

open access: yesJournal of Peptide Science, Volume 32, Issue 3, March 2026.
As an alternative to the conventional approach, which combines amino acid monomers in a one‐by‐one fashion to peptide derivatives, the chemical modification of existing peptides has attracted significant attention in recent years. However, such approaches generally target the reactive functional groups in cysteine and lysine residues, particularly in ...
Yoshitaka Moriyama   +2 more
wiley   +1 more source

Taming of Low‐Valent Arsenic Compounds and Transfer of Nascent As2 Facilitated by a Frustrated Lewis Pair

open access: yesAngewandte Chemie, Volume 138, Issue 3, 16 January 2026.
A series of frustrated Lewis pair (FLP) stabilized arsenic compounds with formal oxidation numbers at As of +1, 0, and −1 are presented. A stable FLP‐chelated complex of As2 was prepared which undergoes the light‐induced release of nascent diarsenic, As2nasc, which reveals clean triple‐bond type reactivity with dienes and metal‐metal bonds under mild ...
Ludwig Zapf   +3 more
wiley   +2 more sources

Improving Livability Using Green and Active Modes: A Traffic Stress Level Analysis of Transit, Bicycle, and Pedestrian Access and Mobility [PDF]

open access: yes, 2017
Understanding the relative attractiveness of alternatives to driving is vitally important toward lowering driving rates and, by extension, vehicle miles traveled (VMT), traffic congestion, greenhouse gas (GHG) emissions, etc.
Appleyard, Bruce   +2 more
core   +1 more source

Dual‐Mode Thio‐MacMillan Organocatalysts: Stereoselective Diels–Alder Reactions or Sacrificial Self‐Cyclization to N‐Bridged Bicyclic Lactams

open access: yesChemistry – A European Journal, Volume 32, Issue 5, 2 February 2026.
The study of the Diels–Alder reaction of cinnamaldehyde and cyclopentadiene, catalyzed by chiral imidazolidine‐4‐thiones, led to the discovery of a highly regio‐ and stereoselective Michael‐addition and consecutive ring closure. Here, the imidazolidine‐4‐thione not only catalytically activates cinnamaldehyde but also participates as the nucleophile to ...
Marian S. R. Ebeling   +5 more
wiley   +1 more source

Bus rapid transit [PDF]

open access: yes, 2002
Effective public transit is central to development. For the vast majority of developing city residents, public transit is the only practical means to access employment, education, and public services, especially when such services are beyond the viable ...
Wright, Lloyd
core  

Photoinduced, Chemoselective γ‐Alkylation of 2‐Silyloxyfurans With α‐Bromoketones: A Rapid Entry to Chiral ε‐Keto‐γ‐Butenolides

open access: yesChemistry – A European Journal, Volume 32, Issue 5, 2 February 2026.
A photoinduced, regio‐ and chemoselective γ‐alkylation of 2‐silyloxyfurans with a‐bromoketones was achieved by exploiting a photoredox catalytic process promoted by blue light. This approach provides practical and efficient access to chiral, ε‐ketobutenolides, in one step and high yields.
Debora Guazzetti   +9 more
wiley   +1 more source

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