2,303 research outputs found
Mark L. Abbott, Saving the legacy: an oral history of Utah\u27s World War II veterans, ACCN 2070, American West Center, University of Utah
No full textTranscript (106 pages) of an interview by Benjamin Bahlmann with Mark L. Abbott on April 5, 2001. From tape numbers 383, 384, and 385 in the "Saving the Legacy" Oral History ProjectAbbott (b. 1923) recalls his childhood in Sutherland, Utah. He joined the Marine Corps in November 194 and took basic training in California. He was assigned to the 2nd Marine Division, 8th Marines, 8th Regiment, E Company. He served in American Samoa and took part in battles on Guadalcanal, Tarawa, Saipan, and Tinian. He later became part of a combat training group at Camp Pendleton. Interviewed by Benjamin Bahlmann. 106 pages
Heart Failure Follow-Up
No full textObjective: The purposes of this study were to: a.) determine differences in demographic, socioeconomic, and clinical variables of adult patients with heart failure that attend follow-up and those who do not and to: b.) to explore the association of the post-discharge follow-up visit components (e.g. the timing of the visit and provider type) with 30-day readmission.
Background: Timely follow-up after heart failure hospitalization is an intervention associated with a reduction in 30-day readmission and can improve patient safety; however published studies have shown that the rate of follow-up is low. Research findings describing characteristics of patients at-risk for not attending follow-up and how components of the visit affect 30-day readmissions are limited.
Methods: A retrospective chart review of heart failure patients discharged between June 1, 2011 and February 1, 2013 was completed at an urban mid-western acute care hospital.
Results: Eighty-five percent of patients (n=68) attended the scheduled follow-up visit. Statistically significant differences were found between the number of outpatient visits in year previous to admission (p= 0.042) and hemoglobin values at admission (p= 0.04) between patients that attended follow-up and those that did not. No statistically significant differences were found between patients that attended follow-up within 3 days, 4-7 days, or 8 or more days and 30-day readmission (p=1.000) or between patients who attended follow-up and were treated by a cardiologist vs. those treated by a primary care provider (p=0.103).
Conclusion: Follow-up after heart failure hospitalization remains an important component of care. Interventional studies that facilitate post-discharge follow-up and employ strategies to reduce 30-day readmission need to continue.Manuscript21 page
A 40,000-yr record of environmental change from Burial Lake in Northwest Alaska
No full textBurial Lake in northwest Alaska records changes in water level and regional vegetation since ?39,000 cal yrBP based on terrestrial macrofossil AMS radiocarbon dates. A sedimentary unconformity is dated between34,800 and 23,200 cal yr BP. During all or some of this period there was a hiatus in deposition indicating amajor drop in lake level and deflation of lacustrine sediments. MIS 3 vegetation was herb-shrub tundra;more xeric graminoid-herb tundra developed after 23,200 cal yr BP. The tundra gradually became moremesic after 17,000 cal yr BP. Expansions of Salix then Betula, at 15,000 and 14,000 cal yr BP, respectively, arecoincident with a major rise in lake level marked by increasing fine-grained sediment and higher organicmatter content. Several sites in the region display disrupted sedimentation and probable hiatuses during thelast glacial maximum (LGM); together regional data indicate an arid interval prior to and during the LGMand continued low moisture levels until ?15,000 cal yr BP. AMS 14C dates from Burial Lake are approximatelysynchronous with AMS 14C dates reported for the Betula expansion at nearby sites and sites across northernAlaska, but 1000–2000 yr younger than bulk-sediment dates
18-Suches_Supplemental_Material – Supplemental material for Paleoclimatic and archaeological evidence from Lake Suches for highland Andean refugia during the arid middle-Holocene
No full textSupplemental material, 18-Suches_Supplemental_Material for Paleoclimatic and archaeological evidence from Lake Suches for highland Andean refugia during the arid middle-Holocene by Benjamin R Vining, Byron A Steinman, Mark B Abbott and Arielle Woods in The Holocene</p
Supplemental_Material – Supplemental material for Two millennia of anthropogenic landscape modification and nutrient loading at Dian Lake, Yunnan Province, China
No full textSupplemental material, Supplemental_Material for Two millennia of anthropogenic landscape modification and nutrient loading at Dian Lake, Yunnan Province, China by Aubrey L Hillman, Alice Yao, Mark B Abbott and Daniel J Bain in The Holocene</p
Paleoenvironmental Trends in Venezuela during the Last Glacial Cycle
No full text32 p. il. map.Peer reviewe
Late Quaternary palaeoclimate of western Alaska inferred from fossil chironomids and its relation to vegetation histories
No full textFossil Chironomidae assemblages (with a few Chaoboridae and Ceratopogonidae) from Zagoskin and Burial Lakes in western Alaska provide quantitative reconstructions of mean July air temperatures for periods of the late-middle Wisconsin (similar to 39,000-34,000 cal yr B.P.) to the present. Inferred temperatures are compared with previously analyzed pollen data from each site summarized here by indirect ordination. Paleotemperature trends reveal substantial differences in the timing of climatic warming following the late Wisconsin at each site, although chronological uncertainty exists. Zagoskin Lake shows early warming beginning at about 21,000 cal yr B.P., whereas warming at Burial Lake begins similar to 4000 years later. Summer climates during the last glacial maximum (LGM) were on average similar to 3.5 degrees C below the modern temperatures at each site. Major shifts in vegetation occurred from similar to 19,000 to 10,000 cal yr B.P. at Zagoskin Lake and from similar to 17,000 to 10,000 cal yr B.R at Burial Lake. Vegetation shifts followed climatic warming, when temperatures neared modern values. Both sites provide evidence of an early postglacial thermal maximum at similar to 12,300 cal yr B.R These chironomid records, combined with other insect-based climatic reconstructions from Beringia, indicate that during the LGM: (1) greater continentality likely influenced regions adjacent to the Bering Land Bridge and (2) summer climates were, at times, not dominated by severe col
Palaeohydrology of the southwest Yukon territory, Canada, based on multiproxy analyses of lake sediment cores from a depth transect
No full textLake-level variations at Marcella Lake, a small, hydrologically closed lake in the southwestern Yukon Territory, document changes in effective moisture since the early Holocene. Former water levels, driven by regional palaeohydrology, were reconstructed by multiproxy analyses of sediment cores from four sites spanning shallow to deep water. Marcella Lake today is thermally stratified, being protected from wind by its position in a depression. It is alkaline and undergoes bio-induced calcification. Relative accumulations of calcium carbonate and organic matter at the sediment/water interface depend on the location of the depositional site relative to the thermocline. We relate lake-level fluctuations to down-core stratigraphic variations in composition, geochemistry, sedimentary structures and to the occurrence of unconformities in four cores based on observations of modern limnology and sedimentation processes. Twenty-four AMS radiocarbon dates on macrofossils and pollen provide the lake-level chronology. Priorto 10 000 cal. BP water levels were low, but then they rose to 3 to 4 m below modern levels. Between 7500 and 5000 cal. BP water levels were 5 to 6 m below modern but rose by 4000 cal. BP. Between 4000 and 2000 cal. BP they were higher than modern. During the last 2000 years, water levels were either near or 1 to 2 m below modern levels. Marcella Lake water-level fluctuations correspond with previously documented palaeoenvironmental and palaeoclimatic changes and provide new, independent effective moisture information. The improved geochronology and quantitative water-level estimates are a framework for more detailed studies in the southwest Yukon
Forest–savanna–<i>morichal</i> dynamics in relation to fire and human occupation in the southern Gran Sabana (SE Venezuela) during the last millennia
No full textThe southern Gran Sabana (SE Venezuela) holds a particular type of neotropical savanna characterized by the local occurrence of morichales (Mauritia palm swamps), in a climate apparently more suitable for rain forests. We present a paleoecological analysis of the last millennia of Lake Chonita (4°39′N–61°0′W, 884 m elevation), based on biological and physico-chemical proxies. Savannas dominated the region during the last millennia, but a significant vegetation replacement occurred in recent times. The site was covered by a treeless savanna with nearby rainforests from 3640 to 2180 cal yr BP. Water levels were higher than today until about 2800 cal yr BP. Forests retreated since about 2180 cal yr BP onwards, likely influenced by a higher fire incidence that facilitated a dramatic expansion of morichales. The simultaneous appearance of charcoal particles and Mauritia pollen around 2000 cal yr BP supports the potential pyrophilous nature of this palm and the importance of fire for its recent expansion. The whole picture suggests human settlements similar to today – in which fire is an essential element – since around 2000 yr ago. Therefore, present-day southern Gran Sabana landscapes seem to have been the result of the synergy between biogeographical, climatic and anthropogenic factors, mostly fire
Dose-Dependent Enhancement of Morphine-Induced Analgesia\ud by Ingestion of Amniotic Fluid and Placenta
No full textIngestion of amniotic fluid and placenta by rats has been shown to enhance opioid-mediated analgesia. The present studies were designed to examine the effect of several doses and volumes of placenta and amniotic fluid on tail-flick latency in rats treated with 3 mg/kg morphine. The optimal dose of amniotic fluid was found to be 0.25 ml, although 0.50 and 1.0 ml also produced significant enhancement. Doses of 0.125 and 2 ml of amniotic fluid were ineffective, as was a dose of 0.25 ml diluted to 2 ml with saline. The optimal dose of placenta was found to be 1 placenta, although the resulting enhancement was not significantly greater than that produced by 0.25, 0.50, 2.0 or 4.0 placentas. Doses smaller than 0.25 placenta or larger than 4.0 placentas were ineffective. The most effective doses of amniotic fluid and placenta correspond to the amounts delivered with each pup during parturition
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