Results 141 to 150 of about 56,277 (295)

Quaternized tetraethylenepentamine-capped AgNPs for selective and rapid colorimetric detection of mercury(II) in water

open access: yesScientific Reports
This work utilized silver nanoparticles (AgNPs) capped with both tetraethylenepentamine (TEPA) and quaternized tetraethylenepentamine (Q-TEPA) as stabilizer and selective recognition element for Hg2+ over competing metal ions (Fe2+, Fe3+, Zn2+, Cu2+, Pb2+
Mansour D. Alharthi   +2 more
doaj   +1 more source

Mineral profile of cocoa powder: Analytical approach in commercial samples

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Cocoa powder is widely used in the food industry and has high nutritional value due to its composition, including minerals. The main factors related to the presence of minerals in cocoa powder are soil, processing, and cultivation practices.
Mateus Barbosa Silva   +7 more
wiley   +1 more source

Calibration curves, LODs, LOQ, and precision for notoginseng saponin R1, ginseng saponin Rg1, ginseng saponin Re, ginseng saponin Rb1 and ginseng saponin Rd.

open access: yes, 2016
Calibration curves, LODs, LOQ, and precision for notoginseng saponin R1, ginseng saponin Rg1, ginseng saponin Re, ginseng saponin Rb1 and ginseng saponin Rd.
Xiao-he Xiao (124522)   +9 more
core   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

U-Loq [PDF]

open access: yes, 2019
Undergraduate Engineering Science students are required to complete a group-based, two-course capstone sequence: ENSC 405W and ENSC 440. Groups form company structures and create an innovative product that potentially acts as a solution to a real-life ...
Roy, Jameson   +6 more
core  

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

open access: yesPolymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva   +10 more
wiley   +1 more source

Mechanistic Learning for Predicting Survival Outcomes in Head and Neck Squamous Cell Carcinoma

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 540-550, March 2025.
ABSTRACT We employed a mechanistic learning approach, integrating on‐treatment tumor kinetics (TK) modeling with various machine learning (ML) models to address the challenge of predicting post‐progression survival (PPS)—the duration from the time of documented disease progression to death—and overall survival (OS) in Head and Neck Squamous Cell ...
Kevin Atsou   +4 more
wiley   +1 more source

Rapid quantification and validation of etomidate and dexmedetomidine blood concentrations in rats using a novel portable mass spectrometer

open access: yesFrontiers in Veterinary Science
In clinical anesthesia, precise dosing depends on feedback from blood drug concentrations. However, rapid tools for measuring these concentrations are currently limited.
Sicheng Liu   +7 more
doaj   +1 more source

Guidance Document on the Estimation of LOD and LOQ for Measurements in the Field of Contaminants in Food and Feed

open access: yes, 2016
The European Union Reference Laboratory (EURL) for Polycyclic Aromatic Hydrocarbons (EURL PAH), the EURL for Heavy Metals in Feed and Food (EURL HM), the EURL for Mycotoxins (EURL Mycotoxins), and EURL for Dioxins and PCBs in Feed and Food aim to provide with this document guidance to official food control in the EU on the estimation of the limit of ...
Wenzl, Thomas   +6 more
openaire   +1 more source

A Model of Sheela Na Gig in Lybeaus Desconus and the Squire of Low Degree?

open access: yesAnkara Üniversitesi Dil ve Tarih-Coğrafya Fakültesi Dergisi, 2014
A Sheela Na Gig is a carving of a woman with exposed and/or exaggerated genitalia, usually found on religious buildings in the Middle Ages and considered to be sacred. This article seeks to examine the complexity of the naked female body in the Middle ages embodying a sheela na gig model.
openaire   +4 more sources

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