Coprecipitation of Ce(III) oxide with UO.

The neutralization of acidic solutions containing U (IV) and Ce (III) at room temperature in glove box atmosphere and in the presence of dithionite results in coprecipitation of these elements as amorphous solid solutions CeUO. The solubilities of the precipitates with different mole fractions (x) of Ce(OH) (x = 0.01 or 0.

Structure and size of complete hydration shells of metal ions and inorganic anions in aqueous solution.

The structures of nine hydrated metal ions in aqueous solution have been redetermined by large angle X-ray scattering to obtain experimental data of better quality than those reported 40-50 years ago. Accurate M-O and M-(O-H)⋯O distances and M-O(H)⋯O bond angles are reported for the hydrated magnesium(II), aluminium(III), manganese(II), iron(II), iron(III), cobalt(II), nickel(II), copper(II) and zinc(II) ions; the subscripts I and II denote oxygen atoms in the first and second hydration sphere, respectively. Reported structures of hydrated metal ions in aqueous solution are summarized and evaluated with emphasis on a possible relationship between M-O-O bond angles and bonding character.

The U.S. Army Aeromedical Research Laboratory Virtual Reality Vection System.

Introduction: Vection is a stationary individual's illusory experience of self-motion. This illusory self-motion is operationally important for aviation, particularly military aviation, since vection is a dramatic example of spatial disorientation (SD), which is an individual's failure to correctly sense the aircraft's position, motion, and/or attitude with respect to the fixed coordinate system of the Earth's surface and its gravitational vertical. Notably, SD is a major cause of fatal aviation mishaps, and the visual system is particularly prone to provoking vection.

On the prospects of longtermism.

This article objects to two arguments that William MacAskill gives in What We Owe the Future in support of optimism about the prospects of longtermism, that is, the prospects of positively influencing the longterm future. First, it grants that he is right that, whereas humans sometimes benefit others as an end, they rarely harm them as an end, but argues that this bias towards positive motivation is counteracted by the fact that it is practically easier to harm than to benefit. For this greater easiness makes it likely both that accidental effects will be harmful rather than beneficial and that the means or side-effects of the actions people perform with the aim of benefiting themselves and those close to them will tend to be harmful to others.

Malolactic fermentation in lingonberry juice and its use as a preservative.

Lingonberry is a common wild berry that is often sold as jams and beverages. It naturally contains high amounts of the weak acid preservative benzoic acid making it an interesting ingredient for shelf-life extension. Despite this, their use as a raw ingredient is limited by the inherently intense sour taste.