Results 51 to 60 of about 6,184 (250)

The Use of Stable Isotope Ratio Analysis to Trace European Sea Bass (D. labrax) Originating from Different Farming Systems

Animals, 2020
This study aimed to determine whether isotopic ratio mass spectrometry (IRMS) can discriminate farmed European sea bass according to different farming systems and geographic origins.
Francesca Tulli, José M. Moreno-Rojas, Concetta Maria Messina, Angela Trocino, Gerolamo Xiccato, José M. Muñoz-Redondo, Andrea Santulli, Emilio Tibaldi   +7 more
doaj   +1 more source

Intra‐Plant Nitrogen Isotope Fractionation in Maize

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background and aim The natural abundance of nitrogen isotopes (δ15N) provides a powerful integrative tracer of nitrogen uptake and assimilation in plants, yet the internal partitioning of δ15N among plant tissues remains insufficiently understood.
Priscillia Semaoune, Joëlle Templier, Sylvie Derenne, R. Dave Evans, Mathieu Sebilo   +4 more
wiley   +1 more source

Experiences With an In-Bed Real-Time Motion Monitoring System on a Geriatric Ward: Mixed Methods Study

JMIR Formative Research
BackgroundOlder adults now make up about two-thirds of hospital admissions, with up to 50% experiencing cognitive impairments such as dementia. These patients often struggle with adherence to care plans and maintaining regular day
Stefan Walzer, Isabel Schön, Johanna Pfeil, Nicola Merz, Helga Marx, Sven Ziegler, Christophe Kunze   +6 more
doaj   +1 more source

Integrating Knowledge Management Into ERP Selection: A Fuzzy Multi‐Criteria Decision‐Making Model Based on Gray Theory in the Automotive Industry

Knowledge and Process Management, EarlyView.
ABSTRACT Enterprise Resource Planning (ERP) systems are integrated business management tools used by organizations to manage data and processes across various functions. While financial and technical considerations remain central to ERP selection, sustainable success also depends on the system's ability to support Knowledge Management (KM).
Deniz Sadat Sebti Esmail Pour, Ali Faghfouri   +1 more
wiley   +1 more source

Metabolic kinetics of pulmonary surfactant in newborn infants using endogenous stable isotope techniques

Journal of Lipid Research, 2005
We compared kinetic indices of pulmonary surfactant metabolism in premature infants (n = 41) with respect to i) tracer ([1-13C1]acetate, [U-13C6]glucose, and [1,2,3,4-13C4] palmitate), ii) phospholipid (PL) pool (total PLs or disaturated PLs), or iii ...
Kajsa Bohlin, Bruce W. Patterson, Kimberly L. Spence, Assaad Merchak, James C.G. Zozobrado, Luc J.I. Zimmermann, Virgilio P. Carnielli, Aaron Hamvas   +7 more
doaj   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Carbon Isotope Ratio Analysis of Authentic and Commercial Essential Oils of Lemon Balm

Natural Product Communications, 2008
Several commercial and authentic essential oils of lemon balm ( Melissa officinalis L.) were investigated for the carbon isotope ratio of their main compounds (citral as its enantiomers geranial and neral, citronellal, β-caryophyllene, germacrene D and ...
Susanne Wagner, Polona Vreca, Albrecht Leis, Herbert Boechzelt   +3 more
doaj   +1 more source

Evaluation of Performance of Inexpensive Laser Based PM_2.5 Sensor Monitors for Typical Indoor and Outdoor Hotspots of South Korea

Applied Sciences, 2019
Inexpensive (<$300) real-time particulate matter monitors (IRMs), using laser as a light source, have been introduced for use with a Wi-Fi function enabling networking with a smartphone.
Sungroul Kim, Sujung Park, Jeongeun Lee
doaj   +1 more source

Establishment of a Purge and Trap Continuous-Flow Isotope Ratio Mass Spectrometer System for Analysis of Stable Nitrate Isotopes (δ¹⁵N and δ¹⁸O) in Water Samples by Ti(III) Reduction. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Pollution of surface and shallow groundwater by nitrate (NO3−$$ {\mathrm{NO}}_3^{-} $$) is a global concern, resulting in the deterioration of drinking water quality. Stable isotopes of NO3−$$ {\mathrm{NO}}_3^{-} $$ (δ15N and δ18O) can be used to trace its sources and identify prevailing biogeochemical processes.
Gcakasi MN, Stumpp C, Watzinger A.
europepmc   +2 more sources

Information Design for Early‐Stage Dose‐Finding Trials

Naval Research Logistics (NRL), EarlyView.
ABSTRACT To enhance enrollment rates in early‐stage dose‐finding clinical trials, we propose an information design approach, where the clinical investigator (CI) commits to an information releasing mechanism (IRM) based on the treatment's uncertain efficacy and toxicity to encourage patients to participate in the trial.
Amin Khademi, Ningyuan Chen
wiley   +1 more source