1,594 research outputs found
Apparatus for scanning the surface of a cylindrical body
A laser scanning system for providing a two-dimensional display of a cylindrical surface, such as to display striae of a fired bullet is described. The cylinder is scanned along its axis by vibrating one mirror in the laser beam path, and is scanned in a direction normal to its axis by vibrating a second mirror in a direction normal to the first or by rotating the bullet. Scan control signals are adjusted in phase to produce a synchronized display of a video signal obtained from detection of scattered light from the surface thus scanned by a laser beam
Digital decorrelator saves time and expense in acoustic testing of structures
Instantaneous signals from coherent random sound field are summed and time delayed to avoid introducing vectorial addition errors. Resultant statistically independent signals are applied to spectrometer. Displayed sound pressure level is proportional to square root of sum of squares of sound pressure levels taken over frequency range of interest
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Investigating the Relationship between Implicit Theories about Intelligence and Teacher-Student Relationship Quality
This study investigates the influence of teacher held implicit theories about intelligence on the quality of their relationships with students within the context of a school co-located in a secure juvenile justice setting serving adjudicated adolescent boys. In Massachusetts, adjudicated youth attending schools co-located in juvenile justice residential settings have significant gaps in their formal schooling, are culturally diverse, come from impoverished communities, and have high rates of learning disabilities. Their teachers, on the other hand, are mostly middle class, white, and well educated. As such, an immense social and cultural relational divide inherently exists between the teachers and their students working in these settings. And yet, the importance of forming quality teacher-student relationships is widely regarded as essential to achieving a wide range of outcome measures, including engagement, motivation, and achievement (Goodenow, 1993; Midgley, Feldaufer, & Eccles, 1989; Hamre & Pianta, 2005; Stewart, 2008; Hughes & Kwok, 2007). Given these realities, and in order to improve the outcomes for adjudicated youth, improving our understanding about the factors that influence the quality of teacher-student relationships is paramount. This study explores how teacher held implicit theories about intelligence as either fixed or malleable may mediate efforts to form quality teacher-student relationships in service to student learning. Surveys, classroom observation, and teacher interview data were used to increase understanding about the influence of implicit theories of intelligence on teacher-student relationship quality
Transfusion Ratios Following Activation of a Massive Transfusion Protocol: An Evidence Based Practice Project
Background Accidental injury is one of the leading causes of death in the United States and worldwide. Severe hemorrhage from injury is the leading cause of preventable death. Effective management of hemorrhaging trauma patients has been evolving since the early 1900’s. Recent studies have demonstrated the benefits of using a balanced resuscitation technique, revolving around the goal of recreating whole blood. The purpose of this project was to identify what ratios of blood products are being transfused at Providence Sacred Heart Medical Center (PSHMC) and Providence Holy Family Hospital (PHFH).
Methods A literature review was performed identifying seven high quality peer-reviewed studies. • Institutional approval and IRB review for exemption determination completed. Human subjects were protected. • Registry data extraction in an anonymized fashion. • Patients who received no packed red blood cells or had no age specified were excluded. • Patients organized by demographic and clinical characteristics. • 24-hour mortality rates extracted from the electronic health record. • Post hoc power analysis was completed. • High ratio transfusion was defined as a ratio approaching or greater than 1:1 with packed red blood cells always being the denominator (i.e. FFP:PRBC, PLT:PRBC).
Discussion Massive transfusion ratios among hemorrhaging patients at PSHMC and PHFH were observed at high ratio 35% of the time, when comparing fresh frozen plasma to packed red blood cells, and 49% of the time, when comparing platelets to packed red blood cells. Trauma patients account for 39% of all massive transfusions at PSHMC and PHFH. Though some cases of massive transfusions observed in this project did achieve high transfusion ratios, it is unclear what reasons prevented high transfusion ratios. Research evidence suggest that mortality risk is higher when lower ratios are utilized during massive transfusions. However, this project was not powered to detect mortality differences by ratios.https://digitalcommons.psjhealth.org/other_pubs/1121/thumbnail.jp
Uncle Tom\u27s Lament for Eva / words by I. B. Woodbury
Cover: He strikes his harp immortal. To Evas gentle song.; Publisher: Oliver Ditson (New York)https://egrove.olemiss.edu/sharris_a/1005/thumbnail.jp
Fly-fishing in Maine lakes : or, Camp-life in the wilderness.
https://scholars.unh.edu/angling/1003/thumbnail.jp
Uncle Tom\u27s Lament for Eva / written and composed by I.B. Woodbury
Lyrics: First verse The sun arose in beauty, The birds caroled their song Sweet flowers sent forth their fragrance, And decked the verdant lawn. But sad my heart was breaking, No gleam of sunshine there, All, all was drear and darkling, No comfort, e\u27en in prayer. For \u27twas the morn they laid you, Dear Eva, in thy grave, E\u27en now my heart is breaking, O God, in pity save. Thou knowest human weakness, Thou knowest human wo; O take me to those mansions, Where heavenly waters flow. Second verse There, \u27mid seraphic beings, I\u27ll meet my darling one, And join with her in singing Amid that heavenly throng. Forever and forever Our swelling songs shall rise; O take me to those mansions Far, far beyond the skies. Third verse Again the sun in beauty Arose in cloudless dawn; Again sweet flowers in fragrance Bloomed gaily o\u27er the lawn. But Uncle Tom ne\u27er heeds them, He\u27s joined the angel throng, And strikes his harp immortal To Eva\u27s heavenly song.https://egrove.olemiss.edu/ciwar_manuscr/1032/thumbnail.jp
Flinders Petrie: A Life in Archaeology, 2nd edition, by Margaret S. Drower, University of Wisconsin Press, Madison, 1995
Sir William Matthew Flinders Petrie, K.B.E., F.R.S., F.B.A.,
revolutionized Egyptian archaeology in the first two decades (1880- 1900) of his long
career: he set new standards by insisting on keeping a complete record of all that was
found. including broken as well as whole objects; he introduced the use of pottery
styles for dating rather than using only inscriptions; he substituted "a sympathetic and
personal relationship" with his workman for the customary use of the lash to spur them
on; he rewarded care and vigilance; he extended the list of kings of Egypt back to their
beginning; and "his most triumphant and ingenious contribution to archaeological method
[was] the system known as Sequence Dating," today called seriation. He also stunned
classical archaeoloÂgists by dating early the Minoan civilization on the basis of sherds
found in dated Egyptian contexts--a technique now familiar as cross-dating. His work was
a total contrast to the carelessness and looting that passed for Egyptian archaeology in
the 19th and early 20th centuries. His career is painstakingly chronicled here by one of
his last students
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85-GAL DRUM AND NUCFIL-007LS FILTERS
{sm_bullet} 55-gallon drums were overpacked into 85-gallon drums {sm_bullet} ANucFiI-007LS long-stem filter was installed- NucFiI certified the use of NucFiI-007LS filters in 8S-gallon drums as DOT 7AType A - Wood wedges were used during the tests to center and . stabilize the inner 55-gallon drums {sm_bullet} During inspection, afew filters were found to be loose, canted, and/or with RTV seals broken - No contamination or loss of container integrity {sm_bullet} Discovered in November 2008 U
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