2,204 research outputs found
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An Archaeology of Black Markets: Local Ceramics and Economies in Eighteenth-Century Jamaica
Recommended from our members
An Archaeology of Black Markets: Local Ceramics and Economics in Eighteenth Century Jamaica
Recommended from our members
An Archaeology of Black Markets: Local Ceramics and Economies in Eighteenth-Century Jamaica
Low-Fired Earthenwares in the African Diaspora: Problems and Prospects
Local earthenware associated with enslaved African populations in the Americas, variously called “Colono-Ware,” “Afro-CaribbeanWare.” “Yabbas,” and “Criollo ware,” has received considerable attention from researchers. What unifies this disparate group of ceramics is not method of manufacture, design and decoration, or even form and function but the association or potential association with African diaspora populations. The ceramics incorporate some skills and techniques possibly brought by African potters to the Americas, as well as skills reflecting European and Native American traditions, and local adaptations in form, function, and manufacture.Analogies linking African ceramic traditions to American industries have at times been employed uncritically and have relied on generalized characteristics to infer overly specific meanings. With particular reference to low-fired earthenwares from Jamaica, this paper examines the historical and cultural context of these ceramics and the methodological and theoretical problems faced in their interpretation
Accuracy of electrocardiographic criteria for atrial enlargement: validation with cardiovascular magnetic resonance
<p>Abstract</p> <p>Background</p> <p>Anatomic atrial enlargement is associated with significant morbidity and mortality. However, atrial enlargement may not correlate with clinical measures such as electrocardiographic (ECG) criteria. Past studies correlating ECG criteria with anatomic measures mainly used inferior M-mode or two-dimensional echocardiographic data. We sought to determine the accuracy of the ECG to predict anatomic atrial enlargement as determined by volumetric cardiovascular magnetic resonance (CMR).</p> <p>Methods</p> <p>ECG criteria for left (LAE) and right atrial enlargement (RAE) were compared to CMR atrial volume index measurements for 275 consecutive subjects referred for CMR (67% males, 51 ± 14 years). ECG criteria for LAE and RAE were assessed by an expert observer blinded to CMR data. Atrial volume index was computed using the biplane area-length method.</p> <p>Results</p> <p>The prevalence of CMR LAE and RAE was 28% and 11%, respectively, and by any ECG criteria was 82% and 5%, respectively. Though nonspecific, the presence of at least one ECG criteria for LAE was 90% sensitive for CMR LAE. The individual criteria P mitrale, P wave axis < 30°, and negative P terminal force in V1 (NPTF-V1) > 0.04s·mm were 88–99% specific although not sensitive for CMR LAE. ECG was insensitive but 96–100% specific for CMR RAE.</p> <p>Conclusion</p> <p>The presence of at least one ECG criteria for LAE is sensitive but not specific for anatomic LAE. Individual criteria for LAE, including P mitrale, P wave axis < 30°, or NPTF-V1 > 0.04s·mm are highly specific, though not sensitive. ECG is highly specific but insensitive for RAE. Individual ECG P wave changes do not reliably both detect and predict anatomic atrial enlargement.</p
A systematic, intensive statistical investigation of data from the Comprehensive Analysis of Reported Drugs (CARD) for compliance and illicit opioid abstinence in substance addiction treatment with buprenorphine/naloxone
BACKGROUND: Buprenorphine and naloxone (bup/nal), a combination partial mu receptor agonist and low-dose delta mu antagonist, is presently recommended and used to treat opioid-use disorder. However, a literature review revealed a paucity of research involving data from urine drug tests that looked at compliance and abstinence in one sample.
METHOD: Statistical analysis of data from the Comprehensive Analysis of Reported Drugs (CARD) was used to assess compliance and abstinence during treatment in a large cohort of bup/nal patients attending chemical-dependency programs from eastern USA in 2010 and 2011.
RESULTS: Part 1: Bup/nal was present in 93.4% of first (n = 1,282; p \u3c.0001) and 92.4% of last (n = 1,268; p \u3c.0001) urine samples. Concomitantly, unreported illicit drugs were present in 47.7% (n = 655, p =.0261) of samples. Patients who were compliant to the bup/nal prescription were more likely than noncompliant patients to be abstinent during treatment (p =.0012; odds ratio = 1.69 with 95% confidence interval (1.210, 2.354). Part 2: An analysis of all samples collected in 2011 revealed a significant improvement in both compliance (p \u3c 2.2 × 1
Randomized controlled trial of deutetrabenazine for tardive dyskinesia: The ARM-TD study
OBJECTIVE: To determine the efficacy and safety of deutetrabenazine as a treatment for tardive dyskinesia (TD).
METHODS: One hundred seventeen patients with moderate to severe TD received deutetrabenazine or placebo in this randomized, double-blind, multicenter trial. Eligibility criteria included an Abnormal Involuntary Movement Scale (AIMS) score of ≥6 assessed by blinded central video rating, stable psychiatric illness, and stable psychoactive medication treatment. Primary endpoint was the change in AIMS score from baseline to week 12. Secondary endpoints included treatment success at week 12 on the Clinical Global Impression of Change (CGIC) and Patient Global Impression of Change.
RESULTS: For the primary endpoint, deutetrabenazine significantly reduced AIMS scores from baseline to week 12 vs placebo (least-squares mean [standard error] -3.0 [0.45] vs -1.6 [0.46], p = 0.019). Treatment success on CGIC (48.2% vs 40.4%) favored deutetrabenazine but was not significant. Deutetrabenazine and placebo groups showed low rates of psychiatric adverse events: anxiety (3.4% vs 6.8%), depressed mood/depression (1.7% vs 1.7%), and suicidal ideation (0% vs 1.7%, respectively). In addition, no worsening in parkinsonism, as measured by the Unified Parkinson's Disease Rating Scale motor subscale, was noted from baseline to week 12 in either group.
CONCLUSIONS: In patients with TD, deutetrabenazine was well tolerated and significantly reduced abnormal movements.
CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that in patients with TD, deutetrabenazine reduces AIMS scores
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Pan-viral serology implicates enteroviruses in acute flaccid myelitis.
Since 2012, the United States of America has experienced a biennial spike in pediatric acute flaccid myelitis (AFM)1-6. Epidemiologic evidence suggests non-polio enteroviruses (EVs) are a potential etiology, yet EV RNA is rarely detected in cerebrospinal fluid (CSF)2. CSF from children with AFM (n = 42) and other pediatric neurologic disease controls (n = 58) were investigated for intrathecal antiviral antibodies, using a phage display library expressing 481,966 overlapping peptides derived from all known vertebrate and arboviruses (VirScan). Metagenomic next-generation sequencing (mNGS) of AFM CSF RNA (n = 20 cases) was also performed, both unbiased sequencing and with targeted enrichment for EVs. Using VirScan, the viral family significantly enriched by the CSF of AFM cases relative to controls was Picornaviridae, with the most enriched Picornaviridae peptides belonging to the genus Enterovirus (n = 29/42 cases versus 4/58 controls). EV VP1 ELISA confirmed this finding (n = 22/26 cases versus 7/50 controls). mNGS did not detect additional EV RNA. Despite rare detection of EV RNA, pan-viral serology frequently identified high levels of CSF EV-specific antibodies in AFM compared with controls, providing further evidence for a causal role of non-polio EVs in AFM
The complete genome sequence and comparative genome analysis of the high pathogenicity Yersinia enterocolitica strain 8081
The human enteropathogen, Yersinia enterocolitica, is a significant link in the range of Yersinia pathologies extending
from mild gastroenteritis to bubonic plague. Comparison at the genomic level is a key step in our understanding of the
genetic basis for this pathogenicity spectrum. Here we report the genome of Y. enterocolitica strain 8081 (serotype 0:8;
biotype 1B) and extensive microarray data relating to the genetic diversity of the Y. enterocolitica species. Our analysis
reveals that the genome of Y. enterocolitica strain 8081 is a patchwork of horizontally acquired genetic loci, including a
plasticity zone of 199 kb containing an extraordinarily high density of virulence genes. Microarray analysis has
provided insights into species-specific Y. enterocolitica gene functions and the intraspecies differences between the
high, low, and nonpathogenic Y. enterocolitica biotypes. Through comparative genome sequence analysis we provide
new information on the evolution of the Yersinia. We identify numerous loci that represent ancestral clusters of genes
potentially important in enteric survival and pathogenesis, which have been lost or are in the process of being lost, in
the other sequenced Yersinia lineages. Our analysis also highlights large metabolic operons in Y. enterocolitica that are
absent in the related enteropathogen, Yersinia pseudotuberculosis, indicating major differences in niche and nutrients
used within the mammalian gut. These include clusters directing, the production of hydrogenases, tetrathionate
respiration, cobalamin synthesis, and propanediol utilisation. Along with ancestral gene clusters, the genome of Y.
enterocolitica has revealed species-specific and enteropathogen-specific loci. This has provided important insights into
the pathology of this bacterium and, more broadly, into the evolution of the genus. Moreover, wider investigations
looking at the patterns of gene loss and gain in the Yersinia have highlighted common themes in the genome evolution
of other human enteropathogens
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