Results 111 to 120 of about 166,390 (310)

Evaluation of Initial Shear Stiffness Empirical Models for Unsaturated Soils with In-situ Down-Hole Tests [PDF]

مدل‌سازی پیشرفته در مهندسی عمران
Initial shear stiffness is one of the critical parameters in geotechnical investigations. It mainly applies to evaluating the seismic ground response analysis and the seismic design of earthen structures.
Mahdi Abedinezhad, Mahnoosh Biglari, Iman Ashayeri   +2 more
doaj   +1 more source

The eGFR-C study: accuracy of glomerular filtration rate (GFR) estimation using creatinine and cystatin C and albuminuria for monitoring disease progression in patients with stage 3 chronic kidney disease - prospective longitudinal study in a multiethnic population [PDF]

, 2014
Background: Uncertainty exists regarding the optimal method to estimate glomerular filtration rate (GFR) for disease detection and monitoring. Widely used GFR estimates have not been validated in British ethnic minority populations.
Sutton, AJ, Kevin Harris, eGFR-C study group (7648493), Khunti, Kamlesh, Brettell, Elizabeth A., Stevens, PE, Sutton, Andrew J., Claire C Sharpe, Lamb, EJ, Brettell, Elizabeth A, Cockwell, P, F. Loud (7648475), Sutton, Andrew J, P. E. Stevens (7648484), Sharpe, Claire C, Sharpe, CC, J. J. Deeks (7648466), Edmund J Lamb, Maarten W Taal, A. J. Sitch (7642292), Deeks, Jon J., R. S. Ottridge (7648478), Kamlesh Khunti, Elizabeth A Brettell, Taal, Maarten W., Khunti, K, Ottridge, Ryan, Lamb, Edmund J., Brettell, EA, Sutton, Andrew, Sharpe, Claire C., Ryan S Ottridge, Ottridge, Ryan S, ?, ?, N. Dalton (7648463), P. A. Kalra (7648472), Dalton, N, Kalra, PA, Neil Dalton, Taal, Maarten W, Taal, MW, Philip A Kalra, Sharpe, Claire C; id_orcid, Loud, F, K. Harris (75473), Tracy Higgins, Andrew J Sutton, Deeks, Jon J, Loud, Fiona, Dalton, Neil, Higgins, Tracy, Ottridge, RS, Higgins, T, Sitch, Alice J, Deeks, JJ, Sitch, AJ, M. W. Taal (7648490), T. Higgins (7648469), A. J. Sutton (7648487), Harris, Kevin, Kalra, Philip A, Paul Cockwell, Sitch, Alice J., Paul E Stevens, Ottridge, Ryan S., Harris, K, Deeks, Jonathan, Jon J Deeks, Stevens, Paul E., Sitch, Alice; id_orcid, E. J. Lamb (7648454), Kamlesh Khunti (171607), Fiona Loud, Stevens, Paul E, Kalra, Philip A., Alice J Sitch, Cockwell, Paul, P. Cockwell (7648460), Lamb, Edmund J, C. C. Sharpe (7648481), E. A. Brettell (7648457)   +80 more
core   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

%QLS SAS Macro: A SAS Macro for Analysis of Correlated Data Using Quasi-Least Squares

Journal of Statistical Software, 2010
Quasi-least squares (QLS) is an alternative computational approach for estimation of the correlation parameter in the framework of generalized estimating equations (GEE). QLS overcomes some limitations of GEE that were discussed in Crowder (1995).
Han-Joo Kim, Justine Shults
doaj  

Study of socioeconomic differences of long-term PM2.5 exposure and population mortality risk - based on 345 cities from 2000 to 2019 in China

BMC Public Health
Background Previous studies have thoroughly evaluated the association between long-term exposure to PM2.5 and mortality, but the effect of socioeconomic status on the association remains controversial.
Surong Zhao, Xingyu Zhang, Ronghang Liu, Junyan Liu, Xiaoqian Shao, Wanru Zhao, Jiu Wang, Yang Zhao, Chunlei Han   +8 more
doaj   +1 more source

Data acquisition varies by bat phonic group for 2 types of bat detectors when weatherproofed and paired in field settings

Wildlife Society Bulletin, 2015
Manufacturers of acoustic bat detectors use proprietary microphones with different frequency responses, sensitivities, and directionality. Researchers implement various waterproofing strategies to protect microphones from inclement weather. These factors
Zachary D. E. Kaiser, Joy M. O'Keefe
doaj   +1 more source

On the efficacy of simulated maximum likelihood for estimating the parameters of stochastic differential equations

, 2003
A method for estimating the parameters of stochastic differential equations (SDEs) by simulated maximum likelihood is presented. This method is feasible whenever the underlying SDE is a Markov process.
Lindsay, Kenneth A., Lindsay, K.A., Martin, V.L., Hurn, A.S., Hurn, Stanley, Vance, Martin   +5 more
core   +1 more source

Establishing an assay to evaluate d‐amino acid oxidase enzyme kinetics and inhibition using WST‐8 redox dye

FEBS Open Bio, EarlyView.
This study investigated a novel WST‐8‐based assay for evaluating d‐Amino acid oxidase (DAO) inhibitors. We confirmed its effectiveness using known inhibitors and found that uremic toxins possess relatively weak inhibitory activity compared to existing drugs.
Kahoko Miyake, Yuki Enoki, Yuka Nakazawa, Kazuaki Taguchi, Kazuaki Matsumoto   +4 more
wiley   +1 more source

Review of Generalized Estimating Equations by Hardin and Hilbe

The new book by Hardin and Hilbe (2003) is reviewed.
Steven Stillman
core  

Some Simple ML Estimators in Stochastic Differential Equations [PDF]

For many stochastic differential equations often met in financial theory, it is the drift and the dispersion which are the principal parameters of the model.
Erling B. Andersen
core