Results 81 to 90 of about 23,154 (223)

Inference and Evaluation of the Multinomial Mixture Model for Text Clustering

, 2006
In this article, we investigate the use of a probabilistic model for unsupervised clustering in text collections. Unsupervised clustering has become a basic module for many intelligent text processing applications, such as information retrieval, text ...
Banerjee, Church, Deerwester, François Yvon, Halkidi, Hofmann, Jain, Katz, Kuhn, Lange, Loïs Rigouste, Mosimann, Nigam, Olivier Cappé, Robert, Sebastiani, Shahnaz   +16 more
core   +5 more sources

False-Positive Cholesteatomas on Non-Echoplanar Diffusion-Weighted Magnetic Resonance Imaging. [PDF]

, 2020
ObjectivesTo investigate false-positive findings on non-echoplanar (non-EPI) diffusion-weighted magnetic resonance imaging (DWI) in patients under surveillance post-cholesteatoma surgery.Study design, setting, subjects, and methodsA retrospective review ...
Djalilian, Hamid R, Ghavami, Yaser, Lin, Harrison W, Maducdoc, Marlon, Mahboubi, Hossein, Moshtaghi, Omid, Muhonen, Ethan G, Sahyouni, Ronald   +7 more
core  

The L108I polymorphism in mouse prion protein drives spontaneous disease and enhances transmission of atypical and classical prion strains

Brain Pathology, EarlyView.
A single amino acid change (L108I) combined with PrP overexpression drives spontaneous atypical prion formation in mice, enabling also efficient propagation of diverse prion strains. This model allows studying how spontaneous prion diseases arise and provides powerful tools for investigating strain emergence, transmission barriers, and mechanisms ...
Hasier Eraña, Enric Vidal, Natalia Fernández‐Borges, Jorge M. Charco, Carlos M. Díaz‐Domínguez, Cristina Sampedro‐Torres‐Quevedo, Josu Galarza‐Ahumada, Eva Fernández‐Muñoz, Maitena San‐Juan‐Ansoleaga, Miguel Ángel Pérez‐Castro, Nuno Gonçalves‐Anjo, Patricia Piñeiro, Samanta Giler, Nora González‐Martín, Nuria L. Lorenzo, Africa Manero‐Azua, Guiomar Perez de Nanclares, Mariví Geijo, Manuel A. Sánchez‐Martín, Jesús R. Requena, Joaquín Castilla   +20 more
wiley   +1 more source

Characteristics of coarse woody debris in successional stages of natural beech (Fagus orientalis) forests of Northern Iran

Journal of Forest Science, 2010
Coarse woody debris (CWD) is an important structural and functional component in forests in Northern Iran. In this study we determine the temporal patterns of CWD in Kheyroud Forests by examining the CWD volume in different decay classes and size classes
K. Sefidi, M. R. Marvie Mohadjer
doaj   +1 more source

Animal Industry News, 2009, Vol. 10, no. 1 [PDF]

, 2009
Newsletter produced by Department of Agriculture and Land Stewardship about the animal industry in ...

core  

A simplified inventory approach for estimating carbon in coarse woody debris in high-biomass forests [PDF]

, 2013
Forests carrying large quantities of live and dead wood are important carbon (C) stores. Here, we investigate how the inventory of coarse woody debris (CWD) and its embedded C (CWD-C) may be designed efficiently at the scale of logs, plots, and the ...
Bauhus, J, Grove, SJ, Hilbig, E, McElhinny, C, Sohn, J   +4 more
core   +2 more sources

Influence of Tapered‐End and Round‐End Bristle Designs on the Abrasive Enamel Wear Using Toothpastes With High Discrepancies in Abrasiveness

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Purpose The aim of this in vitro study was to investigate the influence of bristle end design of toothbrushes and the relative enamel abrasivity (REA) of used toothpaste on the resulting abrasive enamel wear. Materials and Methods A total of 160 bovine enamel samples were allocated into eight groups (n = 20) and surface topography was recorded
Michelle S. Stübi, Moritz Tanner, Blend Hamza, Leonardo Svellenti, Thomas Attin, Florian J. Wegehaupt   +5 more
wiley   +1 more source

Workplace Pollution: Nuclear Safety, Ethics, and the Exploitation--Avoidance Argument [PDF]

, 2001
The author reviews evidence of poor worker health and safety practices in United States Department of Energy nuclear facilities in contending that less protective standards for workplace hazards constitute an environmental injustice not rectified by a ...
Shrader-Frechette, Kristin
core   +1 more source

Logarithmic and Riesz Equilibrium for Multiple Sources on the Sphere --- the Exceptional Case

, 2017
We consider the minimal discrete and continuous energy problems on the unit sphere $\mathbb{S}^d$ in the Euclidean space $\mathbb{R}^{d+1}$ in the presence of an external field due to finitely many localized charge distributions on $\mathbb{S}^d$, where ...
C Beltrán, C Beltrán, C Zhu, Edward B. Saff, HN Mhaskar, JS Brauchart, JS Brauchart, M Bilogliadov, PD Dragnev, QT Gia Le, QT Gia Le   +10 more
core   +1 more source

Specimen‐tailored ‘lived’ climate reveals precipitation onset and amount best predict specimen phenology, but only weakly predict estimated reproduction across a clade

New Phytologist, EarlyView.
Summary Herbarium specimens are widely distributed in space and time, thereby capturing diverse conditions. We reconstructed specimen ‘lived’ climate from knowledge of germination cues and collection dates for 14 annual species in the Streptanthus (s.l.) clade (Brassicaceae) to ask: which climate attributes best explain specimen phenological stage and ...
Megan Bontrager, Samantha J. Worthy, Laura Leventhal, Julin N. Maloof, Jennifer R. Gremer, Johanna Schmitt, Sharon Y. Strauss   +6 more
wiley   +1 more source