196,040 research outputs found
A bizarre foreign body in the appendix: A case report
No full textForeign bodies are rare causes of appendicitis and, in most cases, ingested foreign bodies pass through the alimentary tract asymptomatically. However, ingested foreign bodies may sometimes remain silent within the appendix for many years without an inflammatory response. Despite the fact that cases of foreign-body-induced appendicitis have been documented, sharp and pointed objects are more likely to cause perforations and abscesses, and present more rapidly after ingestion. Various materials, such as needles and drill bits, as well as organic matter, such as seeds, have been implicated as causes of acute appendicitis. Clinical presentation can vary from hours to years. Blunt foreign bodies are more likely to remain dormant for longer periods and cause appendicitis through obstruction of the appendiceal lumen. We herein describe a patient presenting with a foreign body in his appendix which had been swallowed 15 years previously. The contrast between the large size of the foreign body, the long clinical history without symptoms and the total absence of any histological inflammation was notable. We suggest that an elective laparoscopic appendectomy should be offered to such patients as a possible management optio
Hepatitis C virus infection and gastric lymphoproliferation in patients with Sjogren's syndrome
No full textNoise Reduction by Data Fusion in a Multisensor System of Replicated MEMS Inclinometers
No full textA Data Fusion (DF) approach for noise reduction in a system of multiple MEMS inclinometers is presented. The outputs of four inclinometers (ST IIS2CLX), that are nominally identical and set with the same operative conditions, have been acquired for 48 h consecutively. Each acquired dataset has been studied separately employing the Overlapping Allan VARiance (OAVAR) analysis to identify the Velocity Random Walk (VRW) and the Bias Instability (BI) noise contributions. The DF approach based on ensemble averaging across samples has been then applied combining the four acquired datasets, thus creating new datasets DFn, that contain averaged output data of n inclinometers at each acquisition time. The VRW and BI noise contributions of the DFn datasets have been identified through the OAVAR analysis and compared with the noise contributions of single inclinometers. Experimental results have shown a reduction of the noise variance sigma(2)(n) for both the BI and VRW with a factor 1/n or, equivalently, the noise deviation sigma(n) with a factor 1/root(n), in good agreement with theoretical expectations
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Left main coronary wall thickness correlates with the carotid intima media thickness and may provide a new marker of cardiovascular risk
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Hepatitis C virus infection and gastric lymphoproliferation in patients with Sjogren syndrome
No full textSafety and efficacy of thromboprophylaxis with fondaparinux in elderly acutely ill medical patients with renal impairment: a retrospective single center study
No full textDispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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