Results 161 to 170 of about 620,264 (382)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Poisoning and its Management in Healthcare Facilities in Lagos State, Nigeria

open access: yesPharmaceutical and Biomedical Research, 2020
Background: Poisons are chemical substances that produce harmful effects on the body. About 0.3 million people die annually from poisoning. Poisons are produced by animals, plants, microorganisms, and food contamination.
Arinola Joda   +2 more
doaj  

Fast-spectrum space-power-reactor concepts using boron control devices [PDF]

open access: yes
Several fast-spectrum space power reactor concepts that use boron carbide control devices were examined to determine the neutronic feasibility of the designs. The designs considered were (1) a 199-fuel-pin, 12-poison-reflector-control-drum reactor; (2) a
Mayo, W.
core   +1 more source

Lanthanum‐Induced Gradient Fields in Asymmetric Heterointerface Catalysts for Enhanced Oxygen Electrocatalysis

open access: yesAdvanced Materials, EarlyView.
Uncontrolled atomic migration during the pyrolysis of metal‐N‐C catalysts often leads to disordered coordination environments, active site loss, and poor oxygen electrocatalytic activities. Herein, a La‐mediated atomic migration strategy enables the fabrication of a well‐defined asymmetric heterostructure (LaN/LaFe‐NC) featuring a built‐in electric ...
Yihan Zhang   +6 more
wiley   +1 more source

Brain-inspired conscious computing architecture [PDF]

open access: yes, 2003
What type of artificial systems will claim to be conscious and will claim to experience qualia? The ability to comment upon physical states of a brain-like dynamical system coupled with its environment seems to be sufficient to make claims.
Duch, Prof Wlodzislaw
core   +1 more source

Mechanochemical Nitrous Oxide Decomposition

open access: yesAdvanced Materials, EarlyView.
Nitrous oxide (N2O) is a potent greenhouse gas with a global warming potential of 310. A novel mechanochemical strategy is presented for decomposing N2O into harmless nitrogen and oxygen, achieving a rapid decomposition rate of 1761.3 mL h−1 and nearly complete N2O conversion of 99.98% at 42 °C.
Seung‐Hyeon Kim   +16 more
wiley   +1 more source

Epidemiologic and clinical features of cyanobacteria harmful algal bloom exposures reported to the National Poison Data System, United States, 2010–2022: a descriptive analysis

open access: yesEnvironmental Health
Background Harmful algal bloom occurrences have been increasingly reported globally and over time. Exposure to the variety of toxins and co-contaminants that may be present in harmful algal blooms can cause illness and even death.
Rebecca A. Bloch   +4 more
doaj   +1 more source

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