1,053 research outputs found
Anatomy of an oil spill : long-term effects from the grounding of the barge Florida off West Falmouth, Massachusetts
Author Posting. © Yale University, 1980. This article is posted here by permission of Yale University for personal use, not for redistribution. The definitive version was published in Journal of Marine Research 38 (1980): 265-380.To determine carefully the effects on the marine and estuarine benthos of Number 2 fuel oil
spilled by the barge FLORIDA off West Falmouth, Massachusetts, we sampled for many
months along an onshore-offshore gradient of pollution, and less intensively at unoiled sites.
Analyses of hydrocarbons established that pollution was greatest and most persistent in the
intertidal and subtidal zones of Wild Harbor River, less severe in degree and duration at stations farthest from shore. A variety of concurrent analyses showed that disturbance of the fauna
was most severe and longest lasting at the most heavily oiled sites, and least severe but perceptible
at lightly oiled stations. Patterns of disturbance were not related to granulometry of
the sediments. Plants, ctustaceans, fish, and birds suffered both high mortality immediately
after the spill, and physiological and behavioral abnormalities directly related to high concentrations
of the fuel oil. Five years after the spill its effects on the biota were still detectable, and
partly degraded #2 fuel oil was still present in the sediments in Wild Harbor River and estuary.Our study was partially supported by the Federal Water Pollution Control
Contract 15080, the Environmental Protection Agency Grant No. R80100102 and Massachusetts
Division of Water Pollution Control primarily during the initial three years and by
the Woods Hole Oceanographic Institution at specific key periods
Pathways into services for offenders with intellectual disabilities : childhood experience, diagnostic information and offence variables
The patterns and pathways into intellectual disability (ID) offender services were studied through case file review for 477 participants referred in one calendar year to community generic, community forensic, and low, medium, and maximum secure services. Data were gathered on referral source, demographic information, index behavior, prior problem behaviors, diagnostic information, and abuse or deprivation. Community referrers tended to refer to community services and secure service referrers to secure services. Physical and verbal violence were the most frequent index behaviors, whereas contact sexual offenses were more prominent in maximum security. Age at first incident varied with security, with the youngest in maximum secure services. Attention-deficit/hyperactivity disorder or conduct disorder was the most frequently recorded diagnosis, and severe deprivation was the most frequent adverse developmental experience. Fire starting, theft, and road traffic offenses did not feature prominently. Generic community services accepted a number of referrals with forensic-type behavior and had higher proportions of both women and people with moderate or severe ID
Ki-67 Expression in Breast Cancer; Its Association with Grading Systems, Clinical Parameters and Other Prognostic Factors -- A Surrogate Marker?
BACKGROUND. The number of mitoses and, thus, the proliferative capacity of a tumor
is one of the most crucial variables for tumor grading. The Ki-67 nuclear antigen may
be considered as an alternative to mitotic counts in grading schemes and as a single
parameter that can be used in fine-needle aspirates and small biopsies.
METHODS. Immunohistochemistry using the anti-Ki-67 antibody MIB-1 was performed
on 434 breast carcinoma specimens from the International Breast Cancer
Study Group (formerly Ludwig) Trial V. Three groups based on Ki-67 percent were
used to replace the mitotic counts component in the Nottingham grade (NHG) to
produce the Nottingham/Ki-67 grade (NKG) and to assess Ki-67 as a single parameter.
RESULTS. In both the lymph node positive subgroup and the lymph node negative
subgroup, the NKG and Ki-67 group was correlated significantly with Bloom–
Richardson grade (BRG), NHG, and Nottingham type. Tumor size in the lymph
node negative cohort and estrogen receptor status, progesterone receptor status,
and c-erbB-2 expression in the lymph node positive cohort also were correlated
significantly with NKG. Ki-67 percentage was correlated significantly with c-erbB-2
expression in the lymph node positive cohort only. NKG was similar to BRG and
NHG when it was evaluated for prognostic significance. Patients with higher
categoric Ki-67 percentages had worse overall and disease free survival in all
groups except for the untreated, lymph node negative group.
CONCLUSIONS. Ki-67 detection represents a valuable tool and is a good objective
substitute for mitotic counts when used in a grading system. When it is used alone,
Ki-67 detection provides valuable information, although it is necessary to combine
this with other parameters in the study of core biopsies and fine-needle aspirates.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/91948/1/2003 Cancer Ki-67 Expression in Breast Carcinoma.pd
Uncoverings: The Research Papers of the American Quilt Study Group, Volume 21 (2000)
Preface by Virginia Gunn
Research Papers
An Old-Fashioned Quilting in 1910 by Laurel Horton
Textiles and Cooperative Commerce in Colonial America: The Example of William McCormick by Xenia E. Cord
Creating a New Tradition: Quilting in Tonga by Phyllis S. Herda
Better Choose Me : Addictions to Tobacco, Collecting, and Quilting, 1880-1920 by Ethel Ewert Abrahams and Rachel K. Pannabecker
Hubert Ver Mehren and Home Art Studios by Susan Price Miller
Petting the Fabric : Medium and the Creative Process by Lisa Gabbert
Quilts and Their Stories: Revealing a Hidden History by Marsha MacDowell
Authors and editor
In memoriam: Bill Charles Garoutte (1922-2000), Mill Valley, California
In memoriam: Fred Calland (1924-1999)
Inde
Predicting in-Hospital Mortality After an in-Hospital Cardiac Arrest: A Multivariate Analysis
Aim of the study: Most survivors of an in-hospital cardiac arrest do not leave the hospital alive, and there is a need for a more patient-centered, holistic approach to the assessment of prognosis after an arrest. We sought to identify pre-, peri-, and post-arrest variables associated with in-hospital mortality amongst survivors of an in-hospital cardiac arrest.
Methods: This was a retrospective cohort study of patients ≥18 years of age who were resuscitated from an in-hospital arrest at our University Medical Center from January 1, 2013 to September 31, 2016. In-hospital mortality was chosen as a primary outcome and unfavorable discharge disposition (discharge disposition other than home or skilled nursing facility) as a secondary outcome.
Results: 925 patients comprised the in-hospital arrest cohort with 305 patients failing to survive the arrest and a further 349 patients surviving the initial arrest but dying prior to hospital discharge, resulting in an overall survival of 29%. 620 patients with a ROSC of greater than 20 min following the in-hospital arrest were included in the final analysis. In a stepwise multivariable regression analysis, recurrent cardiac arrest, increasing age, time to ROSC, higher serum creatinine levels, and a history of cancer were predictors of in-hospital mortality. A history of hypertension was found to exert a protective effect on outcomes. In the regression model including serum lactate, increasing lactate levels were associated with lower odds of survival.
Conclusion: Amongst survivors of in-hospital cardiac arrest, recurrent cardiac arrest was the strongest predictor of poor outcomes with age, time to ROSC, pre-existing malignancy, and serum creatinine levels linked with increased odds of in-hospital mortality
Clinical Psychologists’ Firearm Risk Management Perceptions and Practices
The purpose of this study was to investigate the current perceptions and practices of discussing firearm risk management with patients diagnosed with selected mental health problems. A three-wave survey was mailed to a national random sample of clinical psychologists and 339 responded (62%). The majority (78.5%) believed firearm safety issues were greater among those with mental health problems. However, the majority of clinical psychologists did not have a routine system for identifying patients with access to firearms (78.2%). Additionally, the majority (78.8%) reported they did not routinely chart or keep a record of whether patients owned or had access to firearms. About one-half (51.6%) of the clinical psychologists reported they would initiate firearm safety counseling if the patients were assessed as at risk for self-harm or harm to others. Almost half (46%) of clinical psychologists reported not receiving any information on firearm safety issues. Thus, the findings of this study suggest that a more formal role regarding anticipatory guidance on firearms is needed in the professional training of clinical psychologists
Steric Determinants of Pt/DNA Interactions and Anticancer Activity
Studies directed at establishing the structural features that control Pt/DNA interactions and
the anticancer activity of Pt drugs are described. [1H, 15N]-HSQC 2D NMR spectroscopic
studies of the reactions of cisplatin with oligonucleotides containing ApG and GpA binding
sites reveal dramatic differences in the rates of formation of monofunctional adducts at the
two sites. When the reactant is cis-[Pt(NH3)2(OH2)2]2+ no such differences are observed
suggesting that outer-sphere interactions between the reactant and the oligonucleotide may
play a substantial role in determining the rates. Rates of closure to the bifunctional adducts
are similar to those observed for cisplatin. Studies of the adduct profiles formed by sterically
bulky and/or optically active complexes reveal that steric interactions play a major role in
mediating the binding of Pt(ll) to DNA but that hydrogen bonds play less of a role. In vitro cytotoxic activities for these complexes do not always follow the trends that would be
expected on the basis of the adduct profiles
HLA-A*23 Is Associated With Lower Odds of Acute Retroviral Syndrome in Human Immunodeficiency Virus Type 1 Infection: A Multicenter Sub-Saharan African Study
The role of human leukocyte antigen (HLA) class I and killer immunoglobulin-like receptor molecules in mediating acute retroviral syndrome (ARS) during human immunodeficiency virus type 1 (HIV-1) infection is unclear. Among 72 sub-Saharan African adults, HLA-A*23 was associated with lower odds of ARS (adjusted odds ratio, 0.10 [95% confidence interval, .01–.48]; P = .009), which warrants further studies to explore its role on HIV-1–specific immunopathogenesis
Heritability and genome-wide analyses of problematic peer relationships during childhood and adolescence
Peer behaviour plays an important role in the development of social adjustment, though little is known about its genetic architecture. We conducted a twin study combined with a genome-wide complex trait analysis (GCTA) and a genome-wide screen to characterise genetic influences on problematic peer behaviour during childhood and adolescence. This included a series of longitudinal measures (parent-reported Strengths-and-Difficulties Questionnaire) from a UK population-based birth-cohort (ALSPAC, 4–17 years), and a UK twin sample (TEDS, 4–11 years). Longitudinal twin analysis (TEDS; N ≤ 7,366 twin pairs) showed that peer problems in childhood are heritable (4–11 years, 0.60 < twin-h 2 ≤ 0.71) but genetically heterogeneous from age to age (4–11 years, twin-r g = 0.30). GCTA (ALSPAC: N ≤ 5,608, TEDS: N ≤ 2,691) provided furthermore little support for the contribution of measured common genetic variants during childhood (4–12 years, 0.02<GCTA−h2Meta ≤ 0.11) though these influences become stronger in adolescence (13–17 years, 0.14<GCTA−h2ALSPAC ≤ 0.27). A subsequent cross-sectional genome-wide screen in ALSPAC (N ≤ 6,000) focussed on peer problems with the highest GCTA-heritability (10, 13 and 17 years, 0.0002 < GCTA-P ≤ 0.03). Single variant signals (P ≤ 10−5) were followed up in TEDS (N ≤ 2835, 9 and 11 years) and, in search for autism quantitative trait loci, explored within two autism samples (AGRE: N Pedigrees = 793; ACC: N Cases = 1,453/N Controls = 7,070). There was, however, no evidence for association in TEDS and little evidence for an overlap with the autistic continuum. In summary, our findings suggest that problematic peer relationships are heritable but genetically complex and heterogeneous from age to age, with an increase in common measurable genetic variation during adolescence
Social, cultural and economic aspects of antimicrobial resistance.
Although often considered only a medical problem, antimicrobial resistance is an evolutionary challenge accelerated by social, cultural and economic factors that lead to the misuse, overuse and abuse of life-saving antimicrobial medicines. The antimicrobial resistance challenge is compounded by inadequate attention to disease prevention and response, global circulation of people and products, differences in industry and market regulations across countries, and a fragile pipeline of new antibiotics and their alternatives. While the discovery of new antimicrobials will provide temporary solutions, sustainable success requires rigorous social science research that explores the drivers of antimicrobial resistance. These solutions should promote balance between equitable access to, conservation of, and innovation for antimicrobials, adapted to local conditions across the globe
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