Results 201 to 210 of about 3,406,932 (368)

Harnessing Carbenoid Reactivity From Imidazoles and Oxiranes

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
The combination of azole compounds and oxiranes exhibits carbenoid reactivity at elevated temperatures, as demonstrated by the successful benzoin condensation of aromatic aldehydes. Using this catalytic system to polymerize bifunctional aldehyde/oxirane monomers yields thermosets with glass transition temperatures above 100°C.
Matthias R. Steiner   +4 more
wiley   +1 more source

Explaining Growth in Burundi: 1960-2000 [PDF]

open access: yes
This study analyses Burundi’s economic performance over the period 1960-2000 and finds that it has been catastrophic. The usual economic factors explaining growth are endogenous to political decisions, suggesting that it is politics not economics that ...
Floribert Ngaruko, Janvier D. Nkurunziza
core  

Techno‐Economic Analysis of Polylactic Acid from Corn Stover: Understanding Uncertainty and Variability via Artificial Intelligence Tools

open access: yesAdvanced Sustainable Systems, EarlyView.
This study analyses the uncertainty and variability existing in the economic performance of polylactic acid (PLA) production, via integrating techno‐economic analysis with process models and Monte Carlo simulation enabled by artificial intelligence. The results show that the minimum selling price varies from $2,107 to $3076/t PLA.
Yinqiao Wang   +5 more
wiley   +1 more source

Effects of 20 Weeks of Endurance and Strength Training on Running Economy, Maximal Aerobic Speed, and Gait Kinematics in Trained Runners [PDF]

open access: gold
Sergio Rodríguez‐Barbero   +5 more
openalex   +1 more source

Long‐Term Elevated CO2 Improves Soil Health and Rice Yields in Paddy Fields

open access: yesAdvanced Science, EarlyView.
Combining the two longest‐running rice free‐air CO2 enrichment experiments with a global data synthesis, this study demonstrates that long‐term elevated CO2 consistently enhances soil health. In rice paddies, this improvement sustains the CO2 fertilization effect over decades.
Fan Jiang   +22 more
wiley   +1 more source

Acute and Chronic Effects of Stretching on Running Economy: A Systematic Review with Meta-Analysis. [PDF]

open access: yesSports Med Open
Warneke K   +5 more
europepmc   +1 more source

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