University of Missouri

About: University of Missouri is a education organization based out in Columbia, Missouri, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 41427 authors who have published 83598 publications receiving 2911437 citations. The organization is also known as: Mizzou & Missouri-Columbia.

Norms for word lists that create false memories.

Abstract: Roediger and McDermott (1995) induced false recall and false recognition for words that were not presented in lists. They had subjects study 24 lists of 15 words that were associates of a common word (called the critical target or critical lure) that was not presented in the list. False recall and false recognition of the critical target occurred frequently in response to these lists. The purpose of the current work was to provide a set of normative data for the lists Roediger and McDermott used and for 12 others developed more recently. We tested false recall and false recognition for critical targets from 36 lists. Despite the fact that all lists were constructed to produce false remembering, the diversity in their effectiveness was large—60% or more of subjects falsely recalledwindow andsleep following the appropriate lists, and false recognition for these items was greater than 80%. However, the list generated fromking led to 10% false recall and 27% false recognition. Possible reasons for these wide differences in effectiveness of the lists are discussed. These norms serve as a useful benchmark for designing experiments about false recall and false recognition in this paradigm.

Chromosome painting using repetitive DNA sequences as probes for somatic chromosome identification in maize

Abstract: Study of the maize (Zea mays L.) somatic chromosomes (2n = 20) has been difficult because of a lack of distinguishing characteristics. To identify all maize chromosomes, a multicolor fluorescence in situ hybridization procedure was developed. The procedure uses tandemly repeated DNA sequences to generate a distinctive banding pattern for each of the 10 chromosomes. Fluorescence in situ hybridization screening trials of nonsubtracted or subtracted PCR libraries resulted in the isolation of microsatellite 1-26-2, subtelomeric 4-12-1, and 5S rRNA 2-3-3 clones. These three probes, plus centromeric satellite 4 (Cent4), centromeric satellite C (CentC), knob, nucleolus-organizing region (NOR), pMTY9ER telomere-associated sequence, and tandemly repeated DNA sequence 1 (TR-1) were used as a mixture for hybridization to root-tip chromosomes. All 10 chromosomes were identified by the banding and color patterns in the 14 examined lines. There was significant quantitative variation among lines for the knob, microsatellite, TR-1, and CentC signals. The same probe mixture identifies meiotic pachytene, late prophase I, and metaphase I chromosomes. The procedure could facilitate the study of chromosomal structure and behavior and be adapted for other plant species.

CRIES: a new neonatal postoperative pain measurement score. Initial testing of validity and reliability

Abstract: We have developed a neonatal pain assessment tool CRIES. The tool is a ten point scale similar to the APGAR score (Apgar 1953). It is an acronym of five physiological and behavioural variables previously shown to be associated with neonatal pain. C--Crying; R--Requires increased oxygen administration; I--Increased vital signs; E--Expression; S--Sleeplessness. We have tested CRIES for validity and reliability. This report is the result of that testing. We have found CRIES to be valid, reliable and well accepted by neonatal nurses.

Institutional Ownership Differences and International Diversification: The Effects of Boards of Directors and Technological Opportunity

Abstract: We examined the roles of institutional investors, boards of directors, and technological opportunity in relation to international diversification. Our research contributes to both agency and foreign direct investment theories. In data on 197 large U.S. firms, we found significant relationships between institutional ownership and international diversification. International diversification was favored by (1) professional investment funds along with outside board members and (2) pension funds along with inside board members. Also, pension funds' long-term orientation facilitated internationalization in industries with high technological opportunities. The results suggest that different institutional owners have different stakes in firms' international strategies, and the effects of boards of directors and technological opportunity accentuate these differences.

Vitamin D and skin physiology: a D-lightful story.

Abstract: Throughout evolution, exposure to sunlight and the photosynthesis of vitamin D 3 in the skin has been critically important for the evolution of land vertebrates. During exposure to sunlight, the solar UVB photons with energies 290-315 nm are absorbed by 7-dehydrocholesterol in the skin and converted to previtamin D 3 . Previtamin D 3 undergoes a rapid transformation within the plasma membrane to vitamin D 3 . Excessive exposure to sunlight will not result in vitamin D intoxication because both previtamin D 3 and vitamin D 3 are photolyzed to several noncalcemic photoproducts. During the winter at latitudes above ∼35°, there is minimal, if any, previtamin D 3 production in the skin. Altitude also has a significant effect on vitamin D 3 production. At 27° N in November, very little (-0.5%) previtamin D 3 synthesis was detected in Agra (169 m) and Katmandu (1400 m). There was an -2- and 4-fold increase in previtamin D 3 production at -3400 m and at Everest base camp (5300 m), respectively. Increased skin pigmentation, application of a sunscreen, aging, and clothing have a dramatic effect on previtamin D 3 production in the skin. It is estimated that exposure in a bathing suit to 1 minimal erythemal dose (MED) is equivalent to ingesting between 10,000 and 25,000 IU of vitamin D 2 . The importance of sunlight for providing most humans with their vitamin D requirement is well documented by the seasonal variation in circulating levels of 25-hydroxyvitamin D [25(OH)D]. Vitamin D deficiency [i.e., 25(OH)D < 20 ng/ml] is common in both children and adults worldwide. Exposure to lamps that produce UVB radiation is an excellent source for producing vitamin D 3 in the skin and is especially efficacious in patients with fat malabsorption syndromes. The major cause of vitamin D deficiency globally is an underappreciation of sunlight's role in providing humans with their vitamin D 3 requirement. Very few foods naturally contain vitamin D, and those that do have a very variable vitamin D content. Recently it was observed that wild caught salmon had between 75% and 90% more vitamin D 3 compared with farmed salmon. The associations regarding increased risk of common deadly cancers, autoimmune diseases, infectious diseases, and cardiovascular disease with living at higher latitudes and being prone to vitamin D deficiency should alert all health care professionals about the importance of vitamin D for overall health and well being.