9,530 research outputs found
Investigation of cloud/water vapor motion winds from geostationary satellite
Work has been primarily focussed on three tasks: (1) comparison of wind fields produced at MSFC with the CO2 autowind/autoeditor system newly installed in NESDIS operations; (2) evaluation of techniques for improved tracer selection through use of cloud classification predictors; and (3) development of height assignment algorithm with water vapor channel radiances. The contract goal is to improve the CIMSS wind system by developing new techniques and assimilating better existing techniques. The work reported here was done in collaboration with the NESDIS scientists working on the operational winds software, so that NASA funded research can benefit NESDIS operational algorithms
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From Peer Tutors to Writing Center Colleagues: The Potential of Writing Center Internships
The current conversation surrounding peer writing tutor professional development frequently includes discussions of authority, autonomy, and oversight. At the University of Michigan's Sweetland Writing Center, our conversations have followed similar trends with the added complication of an unusual setup when it comes to one-to-one writing consultations. Because Sweetland is staffed entirely by what the field calls "professional consultants" (university writing faculty with MFA or Ph.D. degrees), "professional development" has meant simply carrying out the work of the Academy, that is, attending conferences, publishing books and articles, conducting research, and revising curriculum. Yet in the Peer Tutoring Center – a space populated by upper-level undergraduates who have completed two semesters of intensive training taught by Sweetland faculty in the theory and practice of tutoring their peers – "professional development" has raised many issues of power and authority, at least for the faculty and staff supervising them. When the "professional consultants" seek to "professionalize" the student peer tutors, the emphasis shifts from self-improvement and self-interest (in the economic sense) to quality control and consciousness-raising. The question becomes one of how to help undergraduates transition from self-interest (in the psychological sense) to community- or organizational-interest, that is, how to help them identify with the body that oversees themUniversity Writing Cente
Rare presentation of an atrial myxoma in an adolescent patient: A case report and literature review
BACKGROUND: Cardiac tumors are uncommon in the pediatric population. When present, cardiac manifestations stem from the tumor causing inflow or outflow obstruction. While common in adults, cardiac myxomas presenting with generalized systemic illness or peripheral emboli especially with no cardiac or neurological symptoms are rare in children.
CASE PRESENTATION: We report a case of a previously healthy adolescent girl who presented with a 6-month history of constitutional symptoms and a purpuric rash with no cardiac or neurologic symptoms, found to have a cardiac myxoma.
CONCLUSIONS: A vasculopathic rash in the setting of atrial myxomas has been shown be a precursor to significant morbidity and mortality. Due to the rarity of this entity, the time elapsed from onset of non-cardiac symptoms until diagnosis of a myxoma is usually prolonged with interval development of irreversible neurological sequelae and death reported in the literature. Therefore, we highlight the importance of including cardiac myxomas and paraneoplastic vasculitis early in the differential diagnosis for patients presenting with a purpuric rash and systemic symptoms
\u3csup\u3e13\u3c/sup\u3eC NMR Analysis of Biologically Produced Pyrene Residues by \u3cem\u3eMycobacterium\u3c/em\u3e sp. KMS in the Presence of Humic Acid
Cultures of the pyrene degrading Mycobacterium sp. KMS were incubated with [4-13C]pyrene or [4,5,9,10-14C]pyrene with and without a soil humic acid standard to characterize the chemical nature of the produced residues and evaluate the potential for bonding reactions with humic acid. Cultures were subjected to a “humic acid/humin” separation at acidic pH, a duplicate separation followed by solvent extraction of the humic acid/humin fraction, and a high pH separation. 13C NMR analysis was conducted on the resulting solid extracts. Results indicated that the activity associated with solid extracts did not depend on pH and that approximately 10% of the added activity was not removed from the solid humic acid/humin fraction by solvent extraction. 13C NMR analysis supported the conclusion that the majority of pyrene metabolites were incorporated into cellular material. Some evidence was found for metabolite reaction with the added humic material, but this did not appear to be a primary fate mechanism
A Christian alternative to a peer counseling training program : an honors thesis (HONRS 499)
There is no abstract available for this thesis.Honors CollegeThesis (B.?.)
Using payment innovations to improve transportation networks: a conference summary
On June 12, 2007, Chicago Metropolis 2020 and the Federal Reserve Bank of Chicago jointly hosted a conference to discuss road pricing strategies, as well as other issues related to reducing transportation congestion and improving economic efficiency in the Chicago region and around the world. On June 12, 2007, Chicago Metropolis 2020 and the Federal Reserve Bank of Chicago jointly hosted a conference to discuss road pricing strategies, as well as other issues related to reducing transportation congestion and improving economic efficiency in the Chicago region and around the world.Toll roads ; Payment systems
Theoretical prediction of airplane stability derivatives at subcritical speeds
The theoretical development and application is described of an analysis for predicting the major static and rotary stability derivatives for a complete airplane. The analysis utilizes potential flow theory to compute the surface flow fields and pressures on any configuration that can be synthesized from arbitrary lifting bodies and nonplanar thick lifting panels. The pressures are integrated to obtain section and total configuration loads and moments due side slip, angle of attack, pitching motion, rolling motion, yawing motion, and control surface deflection. Subcritical compressibility is accounted for by means of the Gothert similarity rule
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