Browsing Duke Faculty Articles by Title

Now showing items 968-987 of 1883

Latent Stick-Breaking Processes

Dunson, Prof David; Gelfand, Prof Alan (AMER STATISTICAL ASSOC, 2010)

We develop a model for stochastic processes with random marginal distributions. Our model relies on a stick-breaking construction for the marginal distribution of the process, and introduces dependence across locations by ...
Learning from falling

Joh, Amy S.; Adolph, KE (2006)
Learning gradients on manifolds

Mukherjee, Sayan (INT STATISTICAL INST, 2010)

A common belief in high-dimensional data analysis is that data are concentrated on a low-dimensional manifold. This motivates simultaneous dimension reduction and regression on manifolds. We provide an algorithm for learning ...
Learning Gradients: Predictive Models that Infer Geometry and Statistical Dependence

Maggioni, Prof Mauro; Mukherjee, Sayan (MICROTOME PUBL, 2010)

The problems of dimension reduction and inference of statistical dependence are addressed by the modeling framework of learning gradients. The models we propose hold for Euclidean spaces as well as the manifold setting. ...
Lemur Diversity in Madagascar

Mittermeier, RA; Ganzhorn, JU; Konstant, WR; Glander, K; Tattersall, I; Groves, CP; Rylands, AB; Hapke, A; Ratsimbazafy, J; Mayor, MI; Louis Jr, EE; Rumpler, Y; Schwitzer, C; Rasoloarison, RM (2008)

A basic understanding of the taxonomy, diversity, and distributions of primates is essential for their conservation. This review of the status of the taxonomy of lemurs is based on a 5-d workshop entitled “Primate Taxonomy ...
Lemur redux: Something old, something new, and reader blue. Review of Lemur Social Systems and their Ecological Basis, edited by P.M. Kappeler, J.U. Ganzhorn, and Peter Jörg

Glander, KE (Wiley Publishing, 1995-01-01)
Leptospirosis among Hospitalized Febrile Patients in Northern Tanzania

Biggs, Holly; Morrissey, Anne; Bartlett, John Alexander; Crump, John Andrew (American Society of Tropical Medicine and Hygiene, 2011)

We enrolled consecutive febrile admissions to two hospitals in Moshi, Tanzania. Confirmed leptospirosis was defined as a ≥ 4-fold increase in microscopic agglutination test (MAT) titer; probable leptospirosis as reciprocal ...
Lessons Learned from the Anaerobe Survey: Historical Perspective and Review of the Most Recent Data (2005-2007)

Harrell, Lizzie J. (UNIV CHICAGO PRESS, 2010)

Background. The rationale and lessons learned through the evolution of the National Survey for the Susceptibility of Bacteroides fragilis Group from its initiation in 1981 through 2007 are reviewed here. The survey was ...
Level of β-Adrenergic Receptor Kinase 1 Inhibition Determines Degree of Cardiac Dysfunction After Chronic Pressure Overload–Induced Heart Failure

Tachibana, Hideo; Naga Prasad, Sathyamangla; Lefkowitz, Robert J.; Rockman, Howard Allan (American Heart Association, 2005-02)

Background— Heart failure is characterized by abnormalities in β-adrenergic receptor (βAR) signaling, including increased level of myocardial βAR kinase 1 (βARK1). Our previous studies have shown that inhibition of βARK1 ...
Leveraging Nanoscale Plasmonic Modes to Achieve Reproducible Enhancement of Light

Mock, Jack; Urzhumov, Yaroslav A.; Chen, Shiuan-Yeh; Smith, David (AMER CHEMICAL SOC, 2010)

The strongly enhanced and localized optical fields that occur within the gaps between metallic nanostructures can be leveraged for a wide range of functionality in nanophotonic and optical metamaterial applications Here, ...
Liability, Risk Perceptions, and Precautions at Bars

Sloan, Frank (Journal of Law & Economics, 2000-10)

Are state laws, regulatory practices, and allocation of public resources for enforcement reflected in perceptions by bar owners/managers that they will be cited or sued if they fail to exercise care? Among policies, which ...
The Liberals' Moment: The McGovern Insurgency and the Identity Crisis of the Democratic Party

Spragens, Thomas JR. (CAMBRIDGE UNIV PRESS, 2010)
The Life of Leaders: An Intensive Health Program for Clergy

Cutts, Teresa F.; Gunderson, Gary R.; Proeschold-Bell, Rae Jean; Swift, Robin (Springer US, 2012-12)

Clergy suffer from chronic disease rates that are higher than those of non-clergy. Health interventions for clergy are needed, and some exist, although none to date have been described in the literature. Life of Leaders ...
Lifetime Allocation of Work and Leisure.

Kreps, Juanita (National Council on the Aging, 1968)

Concentrating on the trend toward early retirement in the United States and the factors responsible for it, this study draws comparisons between the work and leisure pattern in the United States, with its growing tendency ...
Lifetime earnings and physicians' choice of specialty

Sloan, Frank (Industrial and Labor Relations Review, 1970-10)

A study to determine whether lifetime earnings in various specialties influence physicians' choice of field. Although income payments to practicing physicians in certain specialties felt to be "shortage" fields may be a ...
Ligament-Derived Matrix Stimulates a Ligamentous Phenotype in Human Adipose-Derived Stem Cells

Guilak, Farshid (MARY ANN LIEBERT INC, 2010)

Human adipose stem cells (hASCs) can differentiate into a variety of phenotypes. Native extracellular matrix (e.g., demineralized bone matrix or small intestinal submucosa) can influence the growth and differentiation of ...
Ligation of cell surface GRP78 with antibody directed against the COOH-terminal domain of GRP78 suppresses Ras/MAPK and PI 3-kinase/AKT signaling while promoting caspase activation in human prostate cancer cells

Misra, Uma K.; Pizzo, Salvatore (LANDES BIOSCIENCE, 2010)

We have previously shown that treatment of prostate cancer and melanoma cells expressing GRP78 on their cell surface with antibody directed against the COOH-terminal domain of GRP78 upregulates and activates p53 causing ...
A lightning discharge producing a beam of relativistic electrons into space

Cummer, Steven (AMER GEOPHYSICAL UNION, 2010)

Strong electric fields associated with lightning generate brief (similar to 1 ms) but intense Terrestrial Gamma-ray Flashes (TGFs), detected by spacecrafts. A few events are thought to be the signature of a relativistic ...
Lightning mapping observation of a terrestrial gamma-ray flash

Lu, Gaopeng; Li, Jingbo; Cummer, Steven (AMER GEOPHYSICAL UNION, 2010)

We report the observation with the North Alabama Lightning Mapping Array (LMA) related to a terrestrial gamma-ray flash (TGF) detected by RHESSI on 26 July 2008. The LMA data explicitly show the TGF was produced during the ...
Light scattering by fine particles during the Pittsburgh Air Quality Study: measurements and modeling

Cabada, JC; Khlystov, A; Wittig, AE; Pilinis, C; Pandis, SN (2004)

{[}1] Light scattering by fine particulate matter was measured during the Pittsburgh Air Quality Study (PAQS) as close to ambient conditions as possible. Several approaches are used for the theoretical calculation of the ...