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POSTAGE stamps, NOBEL Prizes, NOBEL Prize in Chemistry, STAMP collecting, ANALYTICAL chemistry, ORGANIC chemistry awards, NATURAL products, BIOCHEMISTRY, and AWARDS

Nobel Prizes in Chemistry and Philately, Part II, is a review of the stamps issued in different countries to commemorate the Nobel Prizes in analytical chemistry, organic chemistry, natural products and biochemistry. [ABSTRACT FROM AUTHOR]

PHOTONS, PHYSICAL organic chemistry, PHOTOCHEMISTRY, SUPRAMOLECULAR chemistry, and NUCLEAR spin

This Perspective presents a review and survey of the science and philosophy of my research career over the past five decades at Columbia as a physical organic chemist and photochemist. I explore the role of paradigms, structure, and geometric thinking in my own cognitive and intellectual development. The Perspective describes my investigations of high energy content molecules in electronically excited states and the development of electronic spin and supramolecular photochemistry chemistry. Current research dealing with the nuclear spin chemistry of H2 incarcerated in buckyballs is illustrated. In the second part of this Perspective, I recount a personal role of the philosophy and history of science and the scientific communities' use of paradigms in their every day research and intellectual activities. Examples are given of the crucial role of geometry and structure in the rapid development of organic chemistry and physical organic chemistry over the past century. [ABSTRACT FROM AUTHOR]

ORGANIC chemistry, ORGANIC fertilizers, UREA as fertilizer, POTASSIUM fertilizers, AGRICULTURE, FERTILIZERS, and UREA

POLYMER research and MASS spectrometry

Examines proposed partial least squares (PLS) multivariate statistical models for predicting concentration of hydrocarbon- and oxygen-containing functional groups for a calibration set of model homopolymers. Plasma-deposited films; Static secondary ion mass spectrometry (SIMS); PLS modeling; Preprocessing; Prediction of surface oxygen and hydrogen concentration.

COMPOSITION of water, POLYMERS, CATALYSTS, INORGANIC chemistry, and POWER resources

The article discusses research on how the light-induced splitting of water into oxygen and hydrogen generates storable polymers and chemical fuels that could be used to address the world's energy demands. Particular attention is also given to the use of inorganic materials as semiconductor catalysts for such splits.