802 research outputs found
Proposed Television Production Program For Senior High School Students To Develop Critical Thinking Skills
The purpose of the Practicum herewith presented was to create a high school television production that would develop and improve the broadcast journalism student\u27s critical thinking skills. The method proposed to accomplish the task set forth, was a five minute daily newscast written, produced and telecast by the broadcast journalism students. The focus of the newscast, broadcast over closed circuit cable TV to the school community, are the events, accomplishments, and activities of the high school population. The broadcast journalism students were responsible for gathering information, organizing the information into 30 second and 60 second reports, and presenting the information orally and visually on video tape. That daily reports included a montage of information based on school functions that appealed to the wide range of interests of the viewing audience. The results of two pre and post Critical Thinking Skills Tests and the practical application of producing a daily five minute newscast initiated the beginning of the students\u27 produced television productions. The News Director and Director had the responsibility of selecting the most important taped stories appealing to the widest student interest and formatting them into a five minute production. All students participated in various production and/or talent roles, as well as acted as writers of news releases, publicity for special programs which expanded from the newscasts and acting as hosts for celebrities and guests from other classes. Students were assigned positions as studio crew and remote crews, serving to gather the facts and produce the facts into an interesting video presentation. The Criteria for Creating a News Story was used as a guide for reporters to establish a professional measure of quality in obtaining information for 30 or 60 second news item. A guideline of excellence, accuracy and interest was the main criteria for production and to enhance story content into visual expression. The critical thinking skills were expressed in the final visual product of the newscasts, timed, organized, edited and synchronized into a one-take performance to be aired. The five minute newscast expanded into a major newly created news conference format which brought other classes into the studio to hear and question guest speakers from the local state and national community (See Appendix D). The students learned not only how to produce, perform and telecast the news and news conferences, but to write news releases, handle guests, and organize a major event involving up to 150 people seated in the studio. All productions began precisely as scheduled and all news shows were telecast daily without interruption in the program schedule during the entire practicum study. The newscasts and news conferences will continue as well as the special sports, informational and entertainment programs that resulted from the students\u27 proficiency and professionalism in television production
Interactions between response stereotypy and memory strategies on the eight-arm radial maze
Three groups of water-deprived rats collected water from the ends of the 8 arms of an 8-arm radial maze. Sighted subjects, and subjects blinded either with or without pre-enucleation experience on the radial maze, all retrieved the water efficiently. Most of the subjects exhibited the same response stereotypy, regularly choosing 8 adjacent arms of the maze, then stopping in the center of the maze. The strategies underlying this performance were analyzed by interrupting trials and rotating the maze 180° after the subject had made 3 choices. Sighted subjects depended on extramaze stimuli, naive-blind subjects depended on intramaze stimuli and experienced-blind subjects ignored their initial 3 choices after the trial was interrupted. Choice accuracy was equally good whether the subject was returned to the position from which it had been removed, or returned to the opposite side of the central platform. All 3 groups of subjects maintained their stereotyped adjacent-arm responding only as long as such responding was consistent with high choice accuracy. Response stereotypy was prevalent on the radial maze, but response strategies were secondary to memory strategies
Unmasking mRNA in Clam Oocytes: Role of Phosphorylation of a 3′ UTR Masking Element-Binding Protein at Fertilization
AbstractDuring meiotic maturation or after fertilization of invertebrate and vertebrate oocytes, many of the quiescent stored mRNAs are recruited into polysomes. In the clam,Spisula solidissima,such masked messages include the abundant mRNAs encoding cyclin A and the small subunit of ribonucleotide reductase. We have previously shown that mRNA-specific unmasking of these two messages can be achievedin vitro,in oocyte cell-free extracts, by the addition of antisense RNAs corresponding to a fairly short (130–140 nucleotides) segment in their cognate 3′ untranslated regions. We postulated that the antisense RNAs prevented the binding of a masking repressor protein (Standartet al.,1990). Here we report UV-crosslinking and gel retardation studies which show that the masking portions of the translationally regulated mRNAs bind an oocyte protein of 82 kDa (p82), which is phosphorylated after fertilization. This modification was accompanied by altered RNP complex formation in gel retardation assays. These changes presumably reflect the activation of translation of the masked mRNAs. The role of p82 phosphorylation in maternal mRNA unmasking was assessed in a novelin vitroactivation system developed from clam oocytes, based upon the natural rise in pH which accompanies fertilization. Concomitant with mRNA unmasking, several kinases, including cdc2 and MAP kinases were activated in this system, as was p82 phosphorylation. Inhibitors of serine/threonine kinases, including 6-DMAP, staurosporine, and H7 inhibited p82 phosphorylation, whereas inhibitors of tyrosine kinases, protein kinase C, cAMP-dependent protein kinase, and p70s6kdid not prevent this modification. A specific inhibitor of cdc2 kinase, p27Kip1, prevented p82 phosphorylation and translational activation, strongly suggesting that p82 modification is required for unmasking
Community orientations toward a protective agency
Thesis (M.S.)--Boston Universit
A moving-point approach to model shallow ice sheets: a study case with radially symmetrical ice sheets
Predicting the evolution of ice sheets requires numerical models able to accurately track the migration of ice sheet continental margins or grounding lines. We introduce a physically based moving-point approach for the flow of ice sheets based on the conservation of local masses. This allows the ice sheet margins to be tracked explicitly. Our approach is also well suited to capture waiting-time behaviour efficiently. A finite-difference moving-point scheme is derived and applied in a simplified context (continental radially symmetrical shallow ice approximation). The scheme, which is inexpensive, is verified by comparing the results with steady states obtained from an analytic solution and with exact moving-margin transient solutions. In both cases the scheme is able to track the position of the ice sheet margin with high accuracy
Bear Facts
https://openspace.dmacc.edu/banner_news/1458/thumbnail.jp
Duration of Posttraumatic Amnesia Predicts Neuropsychological and Global Outcome in Complicated Mild Traumatic Brain Injury.
OBJECTIVES: Examine the effects of posttraumatic amnesia (PTA) duration on neuropsychological and global recovery from 1 to 6 months after complicated mild traumatic brain injury (cmTBI).
PARTICIPANTS: A total of 330 persons with cmTBI defined as Glasgow Coma Scale score of 13 to 15 in emergency department, with well-defined abnormalities on neuroimaging.
METHODS: Enrollment within 24 hours of injury with follow-up at 1, 3, and 6 months.
MEASURES: Glasgow Outcome Scale-Extended, California Verbal Learning Test II, and Controlled Oral Word Association Test. Duration of PTA was retrospectively measured with structured interview at 30 days postinjury.
RESULTS: Despite all having a Glasgow Coma Scale Score of 13 to 15, a quarter of the sample had a PTA duration of greater than 7 days; half had PTA duration of 1 of 7 days. Both cognitive performance and Extended Glasgow Outcome Scale outcomes were strongly associated with time since injury and PTA duration, with those with PTA duration of greater than 1 week showing residual moderate disability at 6-month assessment.
CONCLUSIONS: Findings reinforce importance of careful measurement of duration of PTA to refine outcome prediction and allocation of resources to those with cmTBI. Future research would benefit from standardization in computed tomographic criteria and use of severity indices beyond Glasgow Coma Scale to characterize cmTBI
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