Here the authors provide evidence that the traditional understanding may be incomplete, describing SN2 reactions via a contact ion-pair mechanism with 19 F-NMR. Asymmetric catalysts show promise ...

Here the authors provide evidence that the traditional understanding may be incomplete, describing SN2 reactions via a contact ion-pair mechanism with 19 F-NMR. Asymmetric catalysis plays a ...

Reaction formation may be a temporary coping mechanism, but it’s unproductive in the long run. It ignores underlying beliefs or challenges that need to be addressed, which can hurt mental health.

The good times come to an end as Chicago snaps Toronto's five-game win streak.

Electrostatics: Electric field, potential, Gauss’s law, capacitors. Current Electricity: Kirchhoff’s laws, circuits, RC/RL circuits. Magnetism: Magnetic field ...

A research team led by Associate Professor Ding Pan from the Departments of Physics and Chemistry at the Hong Kong University of Science and Technology (HKUST), in collaboration with Professor Yuan ...

Sarah Vine and Andrew Pierce bring their own no-holds-barred opinions, insights and reaction (clue is in the title) to the biggest stories of the week. New episodes every Wednesday, wherever you ...

Allergies are an immune system reaction to substances called allergens. The cause a range of symptoms from a stuffy nose to itchy eyes to difficulty breathing. How long allergies last varies based on ...

Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia ...

Department of Physics and Astronomy and Thomas Young Centre, University College London, London WC1E 6BT, United Kingdom ...

Reactions to a recent immunization (vaccine) Most are reactions at the shot site (such as pain, swelling, redness) General reactions (such as a fever or being fussy) may also occur ...