Institution
University of Memphis
Education•Memphis, Tennessee, United States•
About: University of Memphis is a education organization based out in Memphis, Tennessee, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 7710 authors who have published 20082 publications receiving 611618 citations. The organization is also known as: U of M.
Topics: Population, Poison control, Fractional calculus, Health care, Cognition
Papers published on a yearly basis
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01 Oct 1999
TL;DR: The techniques treated in this text represent research as elucidated by the leaders in the field and are applied to real problems, such as hilllclimbing, simulated annealing, and tabu search.
Abstract: Optimization is a pivotal aspect of software design. The techniques treated in this text represent research as elucidated by the leaders in the field. The optimization methods are applied to real problems, such as hilllclimbing, simulated annealing, and tabu search.
1,461 citations
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Brigham and Women's Hospital1, Harvard University2, University of California, San Francisco3, Yale University4, St Christopher's Hospice5, University of California, Los Angeles6, Cedars-Sinai Medical Center7, University of Western Sydney8, University of Missouri–St. Louis9, Stony Brook University10, University of Memphis11, Columbia University12, Memorial Sloan Kettering Cancer Center13, Utrecht University14, University of Zurich15, Boston University16, Veterans Health Administration17
TL;DR: The psychometric validity of criteria for prolonged grief disorder (PGD) is tested to enhance the detection and care of bereaved individuals at heightened risk of persistent distress and dysfunction.
Abstract: Background: Bereavement is a universal experience, and its association with excess morbidity and mortality is well established. Nevertheless, grief becomes a serious health concern for a relative few. For such individuals, intense grief persists, is distressing and disabling, and may meet criteria as a distinct mental disorder. At present, grief is not recognized as a mental disorder in the DSM-IV or ICD-10. The goal of this study was to determine the psychometric validity of criteria for prolonged grief disorder (PGD) to enhance the detection and potential treatment of bereaved individuals at heightened risk of persistent distress and dysfunction. Methods and Findings: A total of 291 bereaved respondents were interviewed three times, grouped as 0–6, 6–12, and 12– 24 mo post-loss. Item response theory (IRT) analyses derived the most informative, unbiased PGD symptoms. Combinatoric analyses identified the most sensitive and specific PGD algorithm that was then tested to evaluate its psychometric validity. Criteria require reactions to a significant loss that involve the experience of yearning (e.g., physical or emotional suffering as a result of the desired, but unfulfilled, reunion with the deceased) and at least five of the following nine symptoms experienced at least daily or to a disabling degree: feeling emotionally numb, stunned, or that life is meaningless; experiencing mistrust; bitterness over the loss; difficulty accepting the loss; identity confusion; avoidance of the reality of the loss; or difficulty moving on with life. Symptoms must be present at sufficiently high levels at least six mo from the death and be associated with functional impairment. Conclusions: The criteria set for PGD appear able to identify bereaved persons at heightened risk for enduring distress and dysfunction. The results support the psychometric validity of the criteria for PGD that we propose for inclusion in DSM-V and ICD-11. Please see later in the article for the Editors’ Summary.
1,437 citations
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TL;DR: A simple linear transformation of the arcsine transform is suggested, which produces values that are numerically close to the original percentage values over most of the percentage range while retaining all of the desirable statistical properties of the arcine transform.
Abstract: Arcsine or angular transformations have been used for many years to transform proportions to make them more suitable for statistical analysis. A problem with such transformations is that the arcsin...
1,402 citations
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TL;DR: Standard text readability formulas scale texts on difficulty by relying on word length and sentence length, whereas Coh-Metrix is sensitive to cohesion relations, world knowledge, and language and discourse characteristics.
Abstract: Advances in computational linguistics and discourse processing have made it possible to automate many language- and text-processing mechanisms. We have developed a computer tool called Coh-Metrix, which analyzes texts on over 200 measures of cohesion, language, and readability. Its modules use lexicons, part-of-speech classifiers, syntactic parsers, templates, corpora, latent semantic analysis, and other components that are widely used in computational linguistics. After the user enters an English text, Coh-Metrix returns measures requested by the user. In addition, a facility allows the user to store the results of these analyses in data files (such as Text, Excel, and SPSS). Standard text readability formulas scale texts on difficulty by relying on word length and sentence length, whereas Coh-Metrix is sensitive to cohesion relations, world knowledge, and language and discourse characteristics.
1,271 citations
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TL;DR: Small but consistent rightward asymmetry was found in the whole cerebral hemispheres, superior parietal, fusiform and orbito-frontal cortices, postcentral and prefrontal white matter, and in the parietal white matter.
Abstract: In a prospective cross-sectional study, we used computerized volumetry of magnetic resonance images to examine the patterns of brain aging in 148 healthy volunteers. The most substantial age-related decline was found in the volume of the prefrontal gray matter. Smaller age-related differences were observed in the volume of the fusiform, inferior temporal and superior parietal cortices. The effects of age on the hippocampal formation, the postcentral gyrus, prefrontal white matter and superior parietal white matter were even weaker. No significant age-related differences were observed in the parahippocampal and anterior cingulate gyri, inferior parietal lobule, pericalcarine gray matter, the precentral gray and white matter, postcentral white matter and inferior parietal white matter. The volume of the total brain volume and the hippocampal formation was larger in men than in women even after adjustment for height. Inferior temporal cortex showed steeper aging trend in men. Small but consistent rightward asymmetry was found in the whole cerebral hemispheres, superior parietal, fusiform and orbito-frontal cortices, postcentral and prefrontal white matter. The left side was larger than the right in the dorsolateral prefrontal, parahippocampal, inferior parietal and pericalcarine cortices, and in the parietal white matter. However, there were no significant differences in age trends between the hemispheres.
1,248 citations
Authors
Showing all 7827 results
Name | H-index | Papers | Citations |
---|---|---|---|
James F. Sallis | 169 | 825 | 144836 |
Robert G. Webster | 158 | 843 | 90776 |
Ching-Hon Pui | 145 | 805 | 72146 |
James Whelan | 128 | 786 | 89180 |
Tom Baranowski | 103 | 485 | 36327 |
Peter C. Doherty | 101 | 516 | 40162 |
Jian Chen | 96 | 1718 | 52917 |
Arthur C. Graesser | 95 | 614 | 38549 |
David Richards | 95 | 578 | 47107 |
Jianhong Wu | 93 | 726 | 36427 |
Richard W. Compans | 91 | 526 | 31576 |
Shiriki K. Kumanyika | 90 | 349 | 44959 |
Alexander J. Blake | 89 | 1133 | 35746 |
Marek Czosnyka | 88 | 747 | 29117 |
David M. Murray | 86 | 300 | 21500 |