Abstract: In some embodiments, a computer system applies a time of day setting to a virtual environment. In some embodiments, the time of day setting is updated based on an event. In some embodiments, a computer system displays content in an expanded display mode. In some embodiments, computer systems join a communication session while maintaining display of respective environments. In some embodiments, a computer system moves a portal based on user movement. In some embodiments, computer systems share a virtual environment. Computer systems can display media with simulated lighting. Computer systems can share an environment. In some embodiments, a computer system selects a position relative to content. A computer system can present representations of communication session participants based on content. A computer system can present user interfaces to control visual appearances of an environment including media. Computer systems can change an appearance of an environment based on environmental modes.

Abstract: In some embodiments, a computer system applies a time of day setting to a virtual environment. In some embodiments, the time of day setting is updated based on an event. In some embodiments, a computer system displays content in an expanded display mode. In some embodiments, computer systems join a communication session while maintaining display of respective environments. In some embodiments, a computer system moves a portal based on user movement. In some embodiments, computer systems share a virtual environment. Computer systems can display media with simulated lighting. Computer systems can share an environment. In some embodiments, a computer system selects a position relative to content. A computer system can present representations of communication session participants based on content. A computer system can present user interfaces to control visual appearances of an environment including media. Computer systems can change an appearance of an environment based on environmental modes.

Abstract: This invention relates to an improved process for the catalytic hydrogenation of methylene bridged polyphenylamines using rhodium as th e catalyst to produce the methylene bridged polycyclohexylamine counterparts. The improvement for hydrogenating crude methylene bridged polyphenylamines containing polyphenylamine oligomers and trace amounts of impurities, such as the formamide of the methylene bridged polyphenylamines, comprises contacting the crude polyphenylamine feed with a hydrogenation catalyst, other than rhodium, and one which is not a catalyst poison to rhodium, under conditions sufficient to at least partially hydrogenate the polyphenylamine mixture and then effecting hydrogenation of the methylene bridged polyphenylamine to the polycyclohexylamine counterpart in the presence of a rhodium catalyst.

Abstract: This invention relates to an improved hydrogenation process wherein aromatic amines are hydrogenated to their ring hydrogenated counterparts. These aromatic amines are presented by the formulas: ##STR1## wherein R is hydrogen or C.sub.1-6 aliphatic, R.sub.1 and R.sub.2 are hydrogen or C.sub.1-6 aliphatic, A is C.sub.1-4, NH or ##STR2## n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1.The improvement resides in the use of a rhodium catalyst carried on titania support.

Abstract: An apparatus and method for consecutively transferring wafers used in the fabrication of semiconductor devices between carriers having either the same spacing distance or different spacing distances are disclosed. A plate is positioned below an inverted first carrier and above a second carrier. The position of the plate and the second carrier is changed so that wafers fall consecutively from notches in the first carrier into every nth notch in the second carrier, where n is a positive integer.