Results 151 to 160 of about 72,257 (309)

Hyperspectral Raman imaging to understand patterns in dried biofluids in Alzheimer's disease

VIEW, EarlyView.
Raman spectroscopy is commonly used to identify biomarkers in biological fluids, often focusing on the outer ring of dried droplets due to molecular accumulation from the coffee ring effect. However, this approach may overlook important spectral information, so hyperspectral Raman mapping is used to analyze the entire droplet and identify optimal ...
Eneko Lopez, Giulia Gorla, Jaione Etxebarria‐Elezgarai, Julene Aramendia, Kepa Castro, Maite García‐Sebastián, Pablo Martínez‐Lage, Andreas Seifert, Jose Manuel Amigo   +8 more
wiley   +1 more source

Applications of Metrology, Chemometrics and Quality Assurance in Analytical Chemistry [PDF]

, 2000
Ilya Kuselman
openalex   +1 more source

Portable Fourier‐transform infrared spectroscopy and machine learning for sex determination in third instar Chrysomya rufifacies larvae

Journal of Forensic Sciences, EarlyView.
Abstract Forensic entomology is crucial in medicolegal investigations, utilizing insects—primarily flies—to estimate a supplemental post‐mortem interval based on their development at the (death) scene. This estimation can be influenced by extrinsic factors like temperature and humidity, as well as intrinsic factors such as species and sex.
Aidan P. Holman, Davis N. Pickett, Hunter West, Aaron M. Tarone, Dmitry Kurouski   +4 more
wiley   +1 more source

Quantitative gas detection with semiconductor micro-sensors and chemometrics [PDF]

, 2000
Philippe Breuil, N. Perdreau, Christophe Pijolat   +2 more
openalex   +1 more source

Influence of anticoagulant on the spectroscopic analysis of drying bovine blood pools

Journal of Forensic Sciences, EarlyView.
Abstract Rapidly, untreated whole blood undergoes a clotting cascade, making forensic research that investigates “fresh” bloodletting events difficult. In bloodstain pattern analysis research, whole blood treated with anticoagulant is often used to prolong the usability of the blood and allow for transport and experimentation to simulate pattern ...
Erin Giroux, Iraklii I. Ebralidze, Theresa E. Stotesbury   +2 more
wiley   +1 more source

"Chemometrics" applied to the optimization of the preparation of hydrotopes for detergents starting from BTX fraction of natural gas [PDF]

, 2000
Alya Sellami-Kamoun, M. Châabouni
openalex   +1 more source

Optimisation of purple dyeing with Mexican cochineal in cotton with multivariate analysis and the response surface method

Coloration Technology, EarlyView.
Abstract This study aims to optimise the dyeing process of cotton fabrics using Mexican cochineal (Dactylopius coccus Costa). The objective is to obtain purple hues through the design of experiments and by using multivariate analysis. Plackett–Burman experimental designs and the response surface method were used to systematically optimise the dyeing ...
Ernesto Olvera‐Quintanar, Jimena García‐Lapuente, Ahmed Cruz‐Moreno G., Everardo Tapia‐Mendoza   +3 more
wiley   +1 more source

(Non) Linear Regression Modeling [PDF]

We will study causal relationships of a known form between random variables. Given a model, we distinguish one or more dependent (endogenous) variables Y = (Y1, . . .
Čížek, Pavel
core  

The 6th Scandinavian Symposium on Chemometrics (SSC6) Porsgrunn, Telemark, Norway [PDF]

, 2000
Paul Geladi
openalex   +1 more source

Estimating Hedge Fund Leverage: A Three‐Step Estimation Protocol

Financial Markets, Institutions &Instruments, EarlyView.
ABSTRACT Utilizing a micro‐level hedge fund dataset, we propose a methodology for estimating hedge fund leverage. Initially, we perform a Principal Component Analysis on a set of 49 risk factors for dimension deduction purposes. After acquiring 10 Principal Components, we deploy the Least Absolute Shrinkage and Selection Operator regression (Lasso) per
Ariston Karagiorgis, Konstantinos Drakos
wiley   +1 more source