نتایج جستجو برای: روش pls

تعداد نتایج: 380266  

Journal: :AJNR. American journal of neuroradiology 2007
J A Butman M K Floeter

BACKGROUND AND PURPOSE Primary lateral sclerosis (PLS) is a rare form of motor neuron disease characterized by upper motor neuron dysfunction. Because pathologic examination has revealed a loss of neurons in the motor cortex of patients with PLS, we sought to confirm and extend this finding by using MR imaging to measure cortical thickness. METHODS Seven patients with PLS and 7 age-matched ne...

2009
Werner J. REINARTZ Michael HAENLEIN Jörg HENSELER Werner J. Reinartz Michael Haenlein Jörg Henseler

Variance-based SEM, also known under the term partial least squares (PLS) analysis, is an approach that has gained increasing interest among marketing researchers in recent years. During the last 25 years, more than 30 articles have been published in leading marketing journals that have applied this approach instead of the more traditional alternative of covariance-based SEM (CBSEM). However, a...

2014
Brian K. Via Chengfeng Zhou Gifty E. Acquah Wei Jiang Lori G. Eckhardt

This paper addresses the precision in factor loadings during partial least squares (PLS) and principal components regression (PCR) of wood chemistry content from near infrared reflectance (NIR) spectra. The precision of the loadings is considered important because these estimates are often utilized to interpret chemometric models or selection of meaningful wavenumbers. Standard laboratory chemi...

Journal: :Cancer prevention research 2014
Amanda S Bruegl Bojana Djordjevic Brittany Batte Molly Daniels Bryan Fellman Diana Urbauer Rajyalakshmi Luthra Charlotte Sun Karen H Lu Russell R Broaddus

Clinical criteria, primarily young age of cancer onset and family history of signature cancers, have been developed to identify individuals at elevated risk for Lynch syndrome with the goals of early identification and cancer prevention. In 2007, the Society of Gynecologic Oncology (SGO)-codified criteria for women presenting with gynecologic cancers. These criteria have not been validated in a...

2017
Arif Ahmed Sushma Bhatnagar Seema Mishra Deepa Khurana Saurabh Joshi Syed Mehmood Ahmad

INTRODUCTION The phantom limb pain (PLP) and phantom limb sensation (PLS) are very common among amputated cancer patients, and they lead to considerable morbidity. In spite of this, there is a lack of epidemiological data of this phenomenon among the Asian population. This study was done to provide the data from Indian population. METHODS The prevalence of PLP, stump pain (SP), and PLS was pr...

2015
Francisco García Martín

Four different optical path lengths, namely 0.5, 1, 5 and 10 mm, were assayed for 8 olive oil’s free acidity determination using Vis/NIR spectroscopy. Results illustrated 9 that the use of higher path length during spectra acquisition resulted in more accurate 10 PLS models, especially when using solely the NIR region. The PLS model obtained 11 with the NIR spectrum using the 10 mm cuvette was ...

2010
Dean Bruckner Frank van Graas Trent Skidmore

Persistent pseudorange biases constitute a serious potential integrity problem for differential GPS systems used in aircraft precision approach and landing. Various approaches to solve this problem are documented in the literature, including composite protection levels (PLs) that incorporate an explicit bias term in their mathematical expressions. A statistical characterization for such a PL wa...

2013
Karin Schermelleh-Engel Christina S. Werner Andreas G. Klein Helfried Moosbrugger

Nonlinear structural equation modeling provides many advantages over analyses based on manifest variables only. Several approaches for the analysis of latent interaction effects have been developed within the last 15 years, including the partial least squares product indicator approach (PLS-PI), the constrained product indicator approach using the LISREL software (LISREL-PI), and the distributi...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2004
D G Podikoglou T G Avramidis A L Papadimitriou

OBJECTIVE To investigate the underlying pathophysiology of primary lateral sclerosis (PLS) regarding possible changes in blink reflex (BR) circuit. METHODS BR was studied in 10 patients in whom diagnosis of PLS was established by comparing them to two control groups: ten patients with amyotrophic lateral sclerosis (ALS) and 30 healthy volunteers. All patients were followed up annually for a 5...

Journal: :Health education research 2013
Katie E Mosack Leslie Patterson Amanda M Brouwer Angela R Wendorf Kristyn Ertl Dan Eastwood Jeffrey Morzinski Kathlyn Fletcher Jeff Whittle

Volunteer peer leaders (PLs) benefit from their involvement in health interventions but we know little about how they compare with other non-PL volunteers or with the intervention recipients themselves. We randomized 58 veterans' service organizations' posts (e.g. VFW) to peer- versus professionally led self-management support interventions. Our primary research questions were whether hypertens...

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