105 research outputs found
Sybil Crawford Mount Holly Cemetery research collection [DIGITAL CONTENT]
No full textThis collection contains research material collected by Sybil F. Crawford primarily in the process of writing the 150th history of Mount Holly Cemetery, Little Rock, Arkansas. It includes biographies and other material relating to the persons interred in the cemetery, general Little Rock and Arkansas history, newspaper clippings, correspondence, and photograph albums
Ecological stoichiometry of marine bacteria: relationship to growth rate, protozoan predation, and organic matter degradation
No full textThe cycling of carbon between inorganic and organic compounds is an underlying process that drives all life forms. While the rates of production of organic matter have been extensively examined, the degradation rates and kinetics remain poorly understood. Microbial organisms, highly efficient recyclers, play a pivotal role in the degradation process in the ocean. This thesis explores the interactions among microbes (bacteria and protozoa) and how the competitive and predatory interactions affect the rate of organic matter degradation and regeneration. Emphasis is placed both on the structure and dynamics of the particulate and dissolved organic reservoir. Also, prey C:N:P stoichiometry is examined (both experimentally and in a model) to assess the role of elemental ratio relationships in population dynamics and organic matter cycling. It was found that under low growth rates, there is extensive variability of cell C:P and N:P, dependent on bacterial species, but at high growth rates, most species have similar C:P and N:P due to the necessity of P-rich ribosomes. Using clonal species of bacteria tagged with red and green fluorescent proteins, this thesis provides evidence that protozoan predators may prefer slower growing bacterial cells (with higher C:P and N:P), possibly because their cellular stoichiometry closer resembles that of eukaryotic consumers and less energy would need to be expended on processing the excess nutrients.
Data from this thesis suggests that the ultimate bulk percentage of carbon remineralized or respired is primarily dependent on predator/prey interactions and trophic inefficiency, regardless of the limiting nutrient. It has long been debated how the addition of protisian predators stimulates the degradation of organic matter. Here, evidence is provided that the trophic inefficiency of converting bacteria cells to protist cells may account for much of this stimulation.Ph.D.Includes bibliographical references (p. 142-146)
White County Heritage 1993
No full textTABLE OF CONTENTS
WELCOME - Civil War Round Table Remarks on the History of Spring Park by W.E. Leach Rude Awakening: The Struggle for Popular Support in 1868 White County by Chad Moser Arkansas Postcard Past - Beebe Brindletail Confederate by Lyle Sparkman The Cook Family of White County, Arkansas by Sybil F. Crawford Clark School by Paul E. Miller Clearwater School by Paul E. Miller Plainview High School by Paul E. Miller Providence Owes Much to Its Earlier Settlers (copied) The Rise and Fall of a Railroad Town: Bradford in Its First Sixty years by Bryce Thomason John F. Randall (contributed by family) A Trip Across Arkansas: 1878 by Paul E. Miller Arkansas Historical Records Survey: Church Inventory by W.E. Leach The Sayes by Elouise Scott Letter from Walter W. Raney Room and Board by Mary Dean Rice Reynolds The Trail of Elijah Richardson by Cloie Presley John Edward Lightle (contributed by family) Wells Cemetery (Arkansas Archeological Survey( From the Kniffin - Humphries Family History by Edith Neal Kniffin Trails and Thrie Builders by Cloie Presley Query Book Reviews Local Publications Availablehttps://scholarworks.harding.edu/wchs-heritagejournal/1013/thumbnail.jp
A pilot study of mindfulness-based stress reduction for hot flashes
No full textOBJECTIVE: A variety of results from both population and laboratory studies suggest that stress and hot flashes (HFs) are correlated and that HFs are more severe in women with lower coping abilities. The objective of this pilot study was to obtain information on the feasibility and effect of participation in a mindfulness-based stress reduction (MBSR) program on HF severity and menopause-related quality of life. DESIGN: Fifteen women volunteers reporting a minimum of seven moderate to severe HFs per day at study intake attended the eight weekly MBSR classes at the University of Massachusetts Medical School. Participants were assessed for menopause-related quality of life before beginning and at the conclusion of the MBSR program. Women also kept a daily log of their HFs through the course of the 7 weeks of the MBSR program and for 4 weeks after it. RESULTS: Women's scores on quality-of-life measures increased significantly, and the median reported HF severity, calculated as the weekly average of a daily HF severity score, decreased 40% over the course of the 11 weeks of the assessment period. The women were individually interviewed at the completion of their participation, and the results of the interviews were consistent with the results from daily diaries. CONCLUSIONS: These results provide preliminary positive evidence of the feasibility and efficacy of MBSR in supporting women who are experiencing severe HFs, and it warrants further investigation
InterLACE: a new International Collaboration for a Life Course Approach to Women's Reproductive Health and Chronic Disease Events
No full textEvidence from population-based studies of women increasingly points to the inter-related nature of reproductive health, lifestyle, and chronic disease risk. This paper describes the recently established International Collaboration for a Life Course Approach to Reproductive Health and Chronic Disease. InterLACE aims to advance the evidence base for women's health policy beyond associations from disparate studies by means of systematic and culturally sensitive synthesis of longitudinal data. Currently InterLACE draws on individual level data for reproductive health and chronic disease among 200,000 women from over thirteen studies of women's health in seven countries. The rationale for this multi-study research programme is set out in terms of a life course perspective to reproductive health. The research programme will build a comprehensive picture of reproductive health through life in relation to chronic disease risk. Although combining multiple international studies poses methodological challenges, InterLACE represents an invaluable opportunity to strength evidence to guide the development of timely and tailored preventive health strategies
THE. PROBLEMS OF CONSERVATION OF HISTORICAL COSTUMES
No full textThe paper deals with the main problems involved in the conservation
o f historical costumes. It is in this connection that the question is
discussed o f preparation of a costume for washing, i.e. its partial
or complete undoing. The modes of washing and drying are described
and also those o f doubling the worn fabric of the dress and, finally,
o f removing the traces of earlier conservation and remakings.
The author’s attention is focussed on the methods tested at the
workshop at the Rijskantikvarieämbetet (Office for National
Historical Monuments), Stockholm, and its branch workshops
applying the method of needle conservation. Proceding with her
deliberations, the author describes the route on which the plan has
been established o f the work on conservation of a Spanish court
dress, dating from the early 17th century. The method discussed
was worked at the National Museum, Cracow. The tradition is
that the dress belonged to the Saxon Princess Magdalene Sybil. It
is preserved at the National Art Collection (Historisches Museum)
in Dresden. A direct model o f the conservation discussed was that
o f a 15th century man’s suit, carried out at the worshop o f the
Historical Museum in Bern
Planetary stewardship in an urbanizing world: beyond city limits
No full textCities are rapidly increasing in importance as a major factor shaping the Earth system, and as such must take corresponding responsibility. With currently over half of the world population, cities are supported by resources originating from primarily rural regions that are often located around the world far distant from the urban loci of use. The multiple and complex environmental and social challenges the world faces require interconnected solutions and a coordinated governance approach to planetary stewardship. There is a new opportunity to conceptualize a key component of planetary stewardship as a global system of cities that develop sustainable processes and policies in concert with its non-urban areas. The potential for cities to cooperate as a system and with rural connectivity could not only increase their capacity to effect change and foster stewardship at the planetary scale but also increase their resource security
Dietary fat subgroups, zinc, and vegetable components are related to urine F2a-isoprostane concentration, a measure of oxidative stress, in midlife women
No full textSmoking, diet, and physical activity may impact chronic diseases in part by promoting or attenuating oxidative stress. We evaluated associations between lifestyle factors and urine F(2a)-isoprostanes, a marker of oxidative stress in 1610 participants of the Study of Women's Health Across the Nation (SWAN). Dietary intake and physical activity were assessed at baseline and the 5th year 05 (Y05). These data were related to Y05 urinary F(2a)-isoprostane concentration with regression analyses. Median urine F(2a)-isoprostane concentration was 433 ng/L overall, 917 ng/L in smokers [inter-quartile range (IQR): 467, 1832 ng/L], and 403 ng/L in nonsmokers (IQR: 228, 709 ng/L; P < 0.0001 for difference). Higher trans fat intake was associated with higher urine F(2a)-isoprostane concentration; partial Spearman correlations (rho(x|y)) between Y05 urine F(2a)-isoprostane concentration and trans fatty acids was 0.19 (P = 0.03) in smokers and 0.13 (P < 0.0001) in nonsmokers. Increased log trans fat intake from baseline to Y05 was associated with higher concentration of log urine F(2a)-isoprostanes in nonsmokers (beta = 0.131, SE = 0.04, P = 0.0003). In nonsmokers, the partial correlation (rho(x|y)) between lutein and urine F(2a)-isoprostane concentration was -0.13 (P < 0.0001). Increased intake of log lutein from baseline to Y05 was also associated with lower log urine F(2a)-isoprostane concentration (beta = -0.096, SE = 0.03, P = 0.0005) in nonsmokers. Increased zinc intake from baseline to Y05 was associated with lower log urine F(2a)-isoprostane concentration in smokers and nonsmokers (beta = -0.346, SE = 0.14, P = 0.01), and -0.117, 0.04 (P = 0.001), respectively]. In conclusion, diet (fat subtypes, zinc, and vegetable components) and smoking were associated with urine F(2a)-isoprostanes, a marker of oxidative stress
Oestrogen metabolites in relation to isoprostanes as a measure of oxidative stress
No full textObjective Oestradiol (E2) and its metabolites 2-hydroxyoestrone (2-OHE1) and 16Α-hydroxyoestrone (16Α-OHE1) are thought to curtail the greater oxidative stress found in the development and progression of disease conditions including atherosclerosis. We related oestrogen levels to F 2a -isoprostane levels, a biomarker of oxidative stress. Design and participants Data were obtained from 1647 women, aged 47–57 years, participating in the fifth annual follow-up of the Study of Women's Health Across the Nation (SWAN), a study of the menopausal transition. Measurements Serum E2 and urinary 2-OHE1 and 16Α-OHE1 concentrations were determined by enzyme-linked immunosorbent assay (ELISA) and urinary F 2a -isoprostanes were measured by enzyme immunoassay (EIA). Results F 2a -isoprostane concentrations were elevated in women who smoked, a behaviour associated with increased oxidative stress, but not in stages of the natural menopause. Mean F 2a -isoprostane concentrations among pre- and postmenopausal women who smoked were 1082 and 1064 pg/ml, respectively, values double those in pre- (343 pg/ml) and postmenopausal (379 pg/ml) nonsmoking women. 2-OHE1 and F 2a -isoprostane concentrations were positively and highly correlated (partial correlations Ρ Y|X = 0·44 and Ρ Y|X = 0·43 in pre- and postmenopausal women, respectively). Similarly, 16Α-OHE1 concentrations were positively and highly correlated with F 2a -isoprostane concentrations (Ρ Y|X = 0·52 and Ρ Y|X = 0·59 in pre- and postmenopausal women, respectively). E2 was significantly correlated with F 2a -isoprostanes only in postmenopausal women (Ρ Y|X = 0·20). Associations were adjusted for age, body mass index (BMI), race/ethnicity, lipids, physical activity level and alcohol consumption. Conclusions This study does not support the commonly held hypothesis that levels of endogenous E2 or its oestrone metabolites favourably modify oxidative stress by decreasing F2 a -isoprostane levels.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74943/1/j.1365-2265.2007.03108.x.pd
Oestrogen metabolites in relation to isoprostanes as a measure of oxidative stress
No full textOBJECTIVE: Oestradiol (E2) and its metabolites 2-hydroxyoestrone (2-OHE1) and 16alpha-hydroxyoestrone (16alpha-OHE1) are thought to curtail the greater oxidative stress found in the development and progression of disease conditions including atherosclerosis. We related oestrogen levels to F(2a)-isoprostane levels, a biomarker of oxidative stress. DESIGN AND PARTICIPANTS: Data were obtained from 1647 women, aged 47-57 years, participating in the fifth annual follow-up of the Study of Women's Health Across the Nation (SWAN), a study of the menopausal transition. MEASUREMENTS: Serum E2 and urinary 2-OHE1 and 16alpha-OHE1 concentrations were determined by enzyme-linked immunosorbent assay (ELISA) and urinary F(2a)-isoprostanes were measured by enzyme immunoassay (EIA). RESULTS: F(2a)-isoprostane concentrations were elevated in women who smoked, a behaviour associated with increased oxidative stress, but not in stages of the natural menopause. Mean F(2a)-isoprostane concentrations among pre- and postmenopausal women who smoked were 1082 and 1064 pg/ml, respectively, values double those in pre- (343 pg/ml) and postmenopausal (379 pg/ml) nonsmoking women. 2-OHE1 and F(2a)-isoprostane concentrations were positively and highly correlated (partial correlations rho(Y|X) = 0.44 and rho(Y|X) = 0.43 in pre- and postmenopausal women, respectively). Similarly, 16alpha-OHE1 concentrations were positively and highly correlated with F(2a)-isoprostane concentrations (rho(Y|X) = 0.52 and rho(Y|X) = 0.59 in pre- and postmenopausal women, respectively). E2 was significantly correlated with F(2a)-isoprostanes only in postmenopausal women (rho(Y|X) = 0.20). Associations were adjusted for age, body mass index (BMI), race/ethnicity, lipids, physical activity level and alcohol consumption. CONCLUSIONS: This study does not support the commonly held hypothesis that levels of endogenous E2 or its oestrone metabolites favourably modify oxidative stress by decreasing F2(a)-isoprostane levels
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