Results 131 to 140 of about 4,457,338 (303)

Rapid Identification of Vicatia thibetica de Boiss and Quantitative Analysis of the Content of Six Chemical Components Based on Near-Infrared Spectroscopy

open access: yesMolecules
This study developed a rapid, non-destructive method combining near-infrared (NIR) spectroscopy with chemometric techniques (OPLS-DA, ANN, and PLS) to accurately identify the geographic origin and quantify six key chemical components of V.
Yunta Zhang   +7 more
doaj   +1 more source

Metabolic phenotype-microRNA data fusion analysis of the systemic consequences of Roux-en-Y gastric bypass surgery.

open access: yes, 2015
BACKGROUND/OBJECTIVES: Bariatric surgery offers sustained marked weight loss and often remission of type 2 diabetes, yet the mechanisms of establishment of these health benefits are not clear.
A Darzi   +44 more
core   +1 more source

Response of Degarelix treatment in human prostate cancer monitored by HR-MAS 1H NMR spectroscopy. [PDF]

open access: yes, 2016
INTRODUCTION: The androgen receptor (AR) is the master regulator of prostate cancer cell metabolism. Degarelix is a novel gonadotrophin-releasing hormone blocker, used to decrease serum androgen levels in order to treat advanced human prostate cancer ...
Griffiths, John R   +4 more
core   +2 more sources

Visualization OPLS class models of GC-MS-based metabolomics data for identifying agarwood essential oil extracted by hydro-distillation

open access: yesScientific Reports
The composition of natural substances varies with plant species and cultivation environment factors, which is also a complex problem. A total of 127 substances of agarwood essential oils (AEOs) extracted by hydro-distillation were identified by GC-MS ...
Sizhu Qian   +5 more
semanticscholar   +1 more source

Tuning Solvation Structures with KPF6 Additives for More Stable Lithium Metal Battery Cycling

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Introducing an optimal 0.1 m KPF6 additive into the conventional 1 m LiPF6‐EC/DEC electrolyte promoted small aggregate formation, enhanced Li+ transport, and facilitated a uniform SEI, thereby significantly improving the cycling stability of Li‖LiFePO4 cells. Uncontrolled dendrite growth and low Coulombic efficiency remain major challenges limiting the
Houhou Huang   +6 more
wiley   +1 more source

Investigation of potential quality indicators for raw laver (Pyropia spp.) standardization: a collaborative approach between traditional assessment and analytical chemistry

open access: yesFrontiers in Nutrition
IntroductionRaw laver (Pyropia spp.) quality assessment is largely subjective and lacks scientific standardization.MethodsThis study established objective quality markers by integrating biochemical profiling with market-based valuation.
Seul-Ki Park   +8 more
doaj   +1 more source

Detection of Adulterants Metanil Yellow in Turmeric Powder Using Fourier Transform Infrared (FTIR) Spectroscopy Combined with Chemometrics OPLS-DA and PLS

open access: yesIJCA (Indonesian Journal of Chemical Analysis)
Turmeric powder (Curcuma longa L.) is often used for food coloring and flavoring. The high demand for turmeric powder has led to adulteration, one of which is metanil yellow. This study aims to detect metanil yellow dye in turmeric powder using Infrared Spectroscopy (FT-IR) and Chemometrics. The chemometrics model was built by preparing turmeric powder
Dia, Syahril Maulid   +2 more
openaire   +3 more sources

Toward Safer and Sustainable Lithium Metal Batteries: Fluorine‐Free Solid Polymer Electrolytes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An analysis to assess the impact of fluorine in polymer electrolyte‐based lithium metal batteries has been conducted. It has been demonstrated that fluorine‐free LiTIM salt delivers a electrochemical performance similar to that of its fluorinated analogue salts, given the complete lithium dissociation in coordination with PEO and the restricted anion ...
David Fraile‐Insagurbe   +10 more
wiley   +1 more source

Interspecific and Environmental Influence on the Foliar Metabolomes of Mitragyna Species Through Recursive OPLSDA Modeling

open access: yesPlants
Understanding interspecific and environmental influences on secondary metabolite profiles can be critical in plant metabolomics. This study used a hierarchical orthogonal projections to latent structure discriminant analysis (OPLS-DA) to classify the ...
Tushar Andriyas   +4 more
doaj   +1 more source

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

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