Results 81 to 90 of about 6,184 (250)

Triple Oxygen Isotope Compositions of Isotopic Reference Waters: Implications for VSMOW‐Scale and VSMOW–SLAP‐Scale Δ′17O Calibration

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Triple oxygen isotope ratios of two primary (VSMOW, SLAP) and twelve secondary water isotopic reference materials were precisely measured using BrF5 fluorination‐IRMS. The measured Δ'17OVSMOW value for SLAP (34 ± 6 per meg) demonstrates that VSMOW‐SLAP normalisation ensures interlaboratory comparability, but introduces systematic offsets for
Ryoji Tanaka   +2 more
wiley   +1 more source

Outcome of Calcium Silicate Sealer‐Based Obturation in Root Canal Retreatment: A CBCT‐Based Prospective Cohort Study

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Background Calcium silicate sealers (CSS) have become the dominant approach to root canal obturation in many specialist practices, yet evidence on their performance in nonsurgical retreatment is sparse and CBCT‐based assessment remains uncommon.
Ahmad Aldowaisan   +6 more
wiley   +1 more source

Indoor residual spraying of distinct insecticide formulations in a household‐scale micro‐mosaic format: Feasibility and effectiveness for malaria vector control in rural Zambia

open access: yesMedical and Veterinary Entomology, EarlyView.
Densities of all Anopheles species were approximately comparable across all IRS regimes. No differences observed between treatment regimes regarding species composition of the Anopheles funestus group or An. gambiae complex. This operational pilot demonstrates the practical feasibility of IRS micro‐mosaics, despite the inherent increase in deployment ...
Dingani Chinula   +9 more
wiley   +1 more source

IRM

open access: yes, 2013
L’IRM est devenue une technique puissante dans le domaine de l’imagerie médicale ainsi qu’un outil de soins et de recherche d’où la construction d’un IRM à 11 Tesla au centre de neuro spin de CEA à SARCLAY. En effet cet appareil est devenu vital à la médecine moderne du fait qu’il est le seul moyen de détecter et de diagnostiquer certaines pathologies.
openaire   +1 more source

Virocell Necromass Provides Limited Plant Nitrogen and Elicits Rhizosphere Metabolites That Affect Phage Dynamics

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Bacteriophages impact soil bacteria through lysis, altering the availability of organic carbon and plant nutrients. However, the magnitude of nutrient uptake by plants from lysed bacteria remains unknown, partly because this process is challenging to investigate in the field.
Vlastimil Novak   +10 more
wiley   +1 more source

Ozone Susceptibility of Tropical Tree Species

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Tropical forests account for approximately 60% of global terrestrial photosynthesis, yet their function into the future may be compromised by rising ground‐level ozone (O3) pollution. Although O3 is known to impair plant productivity, the physiological mechanisms underlying interspecific variation in O3 susceptibility—especially among tropical
Mst Nahid Farha   +4 more
wiley   +1 more source

Glucose and fructose contributions to exogenous carbohydrate oxidation and performance at moderate altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Co‐ingesting fructose with glucose increases exogenous carbohydrate oxidation at sea level, but its effect at altitude is unclear. This study compared glucose–fructose (GLU–FRU), glucose alone (GLU) and placebo during 120 min of running at 70% V̇O2max${{\dot{V}}_{{{{\mathrm{O}}}_2}{\mathrm{max}}}}$ at 2500 m in eight males.
Nicola C. Arjomandkhah   +7 more
wiley   +1 more source

Determining sugar and molasses origin by non‐exchangeable hydrogen stable isotope of ethanol and carbon isotope ratio mass spectrometry

open access: yesFood Frontiers
This study explores the differentiation of sugar and molasses produced from sugar beet and cane, which are susceptible to fraudulent labeling due to differing production costs.
Macarena Rojas‐Rioseco   +7 more
doaj   +1 more source

Theology of African hospitality: An engagement with indigenous research methods

open access: yesVerbum et Ecclesia
The article is based on the premise that a theology of African hospitality emerges from the intersection of biblical themes such as eschatology, humanity, redemption, kenosis, Christology, salvation and future hope, with African indigenous concepts such ...
Julius Gathogo
doaj   +1 more source

CO2 and N2O Emissions From Vehicles in Seoul Megacity, South Korea: Insights From Mixing Ratio and Stable Isotope Ratios

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Vehicular traffic is a major source of anthropogenic greenhouse gases in megacities; however, real‐world constraints on vehicle‐derived N2O emissions and their isotopic characteristics remain limited. Methods Air samples were collected from three tunnels and urban background sites (a university campus and mountain) in Seoul, South ...
Jeongeun Kim   +7 more
wiley   +1 more source

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