Thermoelectric bonding study

Bonding process and bond failure mechanism in lead telluride thermoelectric element

Thermoelectric bonding study Phase III SUMMARY report

Life testing and bonding of lead telluride element

Endemic Acinetobacter baumannii in a New York Hospital

Acinetobacter baumannii is an increasingly multidrug-resistant (MDR) cause of hospital-acquired infections, often associated with limited therapeutic options. We investigated A. baumannii isolates at a New York hospital to characterize genetic relatedness.Thirty A. baumannii isolates from geographically-dispersed nursing units within the hospital were studied. Isolate relatedness was assessed by repetitive sequence polymerase chain reaction (rep-PCR). The presence and characteristics of integrons were assessed by PCR. Metabolomic profiles of a subset of a prevalent strain isolates and sporadic isolates were characterized and compared.We detected a hospital-wide group of closely related carbapenem resistant MDR A. baumannii isolates. Compared with sporadic isolates, the prevalent strain isolates were more likely to be MDR (p = 0.001). Isolates from the prevalent strain carried a novel Class I integron sequence. Metabolomic profiles of selected prevalent strain isolates and sporadic isolates were similar.The A. baumannii population at our hospital represents a prevalent strain of related MDR isolates that contain a novel integron cassette. Prevalent strain and sporadic isolates did not segregate by metabolomic profiles. Further study of environmental, host, and bacterial factors associated with the persistence of prevalent endemic A. baumannii strains is needed to develop effective prevention strategies

DIMENSIONALLY STABLE ALLOYS. Interim Report

The development of dimensionally stable alloys for high temperature reactor application is discussed. Cold pressing followed by sintering was determined to be the most satisfactory method. Evaluation of alloys by alpha - beta thermal cycling indicated the superiority of U--Mo and U--Nb alloys. A few specimens containing small additions of Mo, Nb, and Si were irradiation tssted in the Materials Testing Reactor. Of these, the Nb alloy (1.6 wt.% Nb) appeared to be most stable. The Mo alloys were somewhat less satisfactory and the alloys containing Si were not stable. (auth

Preservice Teacher Preparation in Meeting the Needs of Gifted and Other Academically Diverse Students

A brief narrative description of the journal article, document, or resource. This report presents findings of a three-year study to examine how preservice teachers develop an awareness of the needs of academically diverse learners, including gifted students, and implement and/or modify instruction to meet those needs. Preservice teachers were assigned to one of two treatment groups: either participation in an interactive full-day workshop on differentiation (n=22) or participation in the workshop and work with a curriculum coach during student teaching (n=23). Both groups and a comparison group who received neither treatment were followed through their first year assignments as regular class teachers. Qualitative analysis revealed several themes: (1) preservice teachers used ambiguous criteria for identifying student differences and needs; (2) preservice teachers expressed limited knowledge concerning differentiating instruction and demonstrated limited strategies for differentiation; (3) preservice teachers were influenced by factors, such as the structure of the school curriculum, which complicated and discouraged understanding and addressing student differences and needs; (4) participants in both intervention groups expressed a consistent concern with differentiation as part of their teaching goals and the intervention provided a starting point for changing practice. The curriculum coach was most effective when the coaching was compatible with the practices of the cooperating teacher or the university supervisor. Contains approximately 150 references. [Abstract taken from ERIC

Practices of Preservice Teachers Related to Gifted and Other Academically Diverse Learners

This qualitative study reports 5 themes in the preservice teaching experience of 10 preservice teachers which may reinforce traditional views of schooling and discourage understanding and addressing unique learning needs of academically diverse learners, such as gifted, remedial, and special education learners. (JDD

Practices of Preservice Teachers Related to Gifted and Other Academically Diverse Learners

A brief narrative description of the journal article, document, or resource. This qualitative study reports 5 themes in the preservice teaching experience of 10 preservice teachers which may reinforce traditional views of schooling and discourage understanding and addressing unique learning needs of academically diverse learners, such as gifted, remedial, and special education learners. (JDD