Diffuser/ejector system for a very high vacuum environment

Turbo jet engines are used to furnish the necessary high temperature, high volume, medium pressure gas to provide a high vacuum test environment at comparatively low cost for space engines at sea level. Moreover, the invention provides a unique way by use of the variable area ratio ejectors with a pair of meshing cones are used. The outer cone is arranged to translate fore and aft, and the inner cone is interchangeable with other cones having varying angles of taper

Rapid, solid-phase based automated analysis of chromatin structure and transcription factor occupancy in living eukaryotic cells

Transcription factors, chromatin components and chromatin modification activities are involved in many diseases including cancer. However, the means by which alterations in these factors influence the epigenotype of specific cell types is poorly understood. One problem that limits progress is that regulatory regions of eukaryotic genes sometimes extend over large regions of DNA. To improve chromatin structure–function analysis over such large regions, we have developed an automated, relatively simple procedure that uses magnetic beads and a capillary sequencer for ligation-mediated-PCR (LM-PCR). We show that the procedure can be used for the rapid examination of chromatin fine-structure, nucleosome positioning as well as changes in transcription factor binding-site occupancy during cellular differentiation

Antenna pointing systematic error model derivations

The pointing model used to represent and correct systematic errors for the Deep Space Network (DSN) antennas is presented. Analytical expressions are given in both azimuth-elevation (az-el) and hour angle-declination (ha-dec) mounts for RF axis collimation error, encoder offset, nonorthogonality of axes, axis plane tilt, and structural flexure due to gravity loading. While the residual pointing errors (rms) after correction appear to be within the ten percent of the half-power beamwidth criterion commonly set for good pointing accuracy, the DSN has embarked on an extensive pointing improvement and modeling program aiming toward an order of magnitude higher pointing precision

Evaluation of Counselor Effectiveness

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/89495/1/j.2164-4918.1979.tb00340.x.pd

Sources of Journal Articles in Select APGA Journals According to Academic Rank of Authors

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/89525/1/j.2164-4918.1978.tb05092.x.pd

The Cultural Entry Process in Japan and Mexico – Cultural Factors to be Considered

This paper is intended to present a triangular cultural comparison of American, Japanese, and Mexican societies. It is written primarily for Americans who plan to live for extended periods of time in either Japan or Mexico, and is written from an American cultural point of view. Included are descriptions of my cross-cultural experiences in the three countries. The main body of the paper deals with the cross-cultural factors which I consider to be the most important to consider when attempting to successfully adapt oneself to living in either Japanese or Mexican society. It is hoped that in some way my own experiences will provide a heightened awareness for future ESL teachers of the cultural challenges presented by Japan and Mexico. The final section of the paper lays down several areas of personal skills which I deem most crucial to successful acculturation in a foreign culture

The marching band in the small high school

Thesis (Ed.M.)--Boston UniversityThe purpose of this thesis is to show means for the development of the marching band in the small high school. Before considering the problem, however, it seemed necessary to appraise marching bands in the light of their educational value. Marching bands in the small high school have been developed in recent years because school administrators were convinced of their educational value as a part of the music department program. This is shown by statements of music educators and authorities in the field of instrumental music and by response through correspondence, which sampled the opinion of school administrators

Symptoms Simulating Brain Tumor Due to the Obliteration of the Longitudinal, Lateral and Occipital Sinuses. A Clinical Case:

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