Abstract: The present disclosure describes compositions that include ferrihydrite (Fh) and methods of using such compositions to improve the growth of plants.

Abstract: A method and arrangement for assisting in correct diagnosis of a problem exhibited by a product having at least one component couples a database to various organizations within an entity responsible for design, manufacture and/or distribution of the product. An observed problem with the product is associated with a component part of the product and a description of the problem and a proposed hint for diagnosing and correcting the problem is forwarded to the database. The database then distributes the hint to a team of component specialists who may refine the hint. An approved hint file is then downloaded to parts ordering and catalog systems such that the hint is displayed whenever the component part is ordered and/or catalog inquired.

Abstract: A portable fan providing oscillation in two axes. Oscillation may occur simultaneously in two axes, or in one selected axis. Two oscillation mechanisms are provided, each having its own oscillation motor and each being selectively operable independent of the other. Optionally, the main fan motor may be employed to power one oscillation mechanism. The fan has a base for desk top support, or a base and extensible column for floor support, or a bracket for permanent mounting. All embodiments have controls for controlling the fan motor and the oscillation motor or motors, and a limited tilting feature for maintaining the fan blade at an angle to the base or bracket.