Results 21 to 30 of about 93 (77)

Metrological traceability of Polycyclic Aromatic Hydrocarbons (PAHs) measurements in green tea and mate [PDF]

open access: yes, 2017
The development of suitable analytical methods to obtain metrologically traceable results in the determination of toxicants in food matrices is an important issue, as food represents the main way of assumption of many contaminants, among which the ...
SEGA, MICHELA   +3 more
core   +1 more source

Supervised and Unsupervised Physical Activity Programs in Pregnancy—There Is a Benefit for Both

open access: yesJournal of Diabetes Research, Volume 2026, Issue 1, 2026.
Objectives Regular physical activity (PA) during pregnancy reduces the risk of cardiometabolic disease. The World Health Organization recommends a minimum of 150 min/week of moderate‐intensity exercise for healthy pregnant women. However, these guidelines are not commonly met, and implications for pregnancy outcomes are not fully understood. This study
Christina Sitzberger   +8 more
wiley   +1 more source

Modeling the Snow Depth Variability With a High‐Resolution Lidar Data Set and Nonlinear Terrain Dependency

open access: yesWater Resources Research, Volume 55, Issue 11, Page 9689-9704, November 2019., 2019
Abstract In the mountains of Norway, snow depth (SD) is highly variable due to strong winds and open terrain. To investigate snow conditions on one of Europe's largest mountain plateaus, Hardangervidda, we conducted snow measurement campaigns in spring 2008 and 2009 using airborne lidar scanning at the approximate time of annual snow maximum (mid‐April)
T. Skaugen, K. Melvold
wiley   +1 more source

Substantial Mitigation Potential for Greenhouse Gases Under High Water Levels in a Cultivated Peatland in the Arctic

open access: yesGlobal Change Biology, Volume 31, Issue 11, November 2025.
Elevating the water table in Arctic cultivated peatlands can substantially reduce greenhouse gas emissions, and even turn these systems into net GHG sinks. Fertilization enhanced biomass production but did not significantly affect CO2 or CH4 emissions, while biomass harvesting led to net carbon loss.
Junbin Zhao   +7 more
wiley   +1 more source

Robust Prediction Algorithm Based on a General EIV Model for Multiframe Transformation

open access: yesMathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
In modern geodesy, there are cases in which the target frame is unique and there is more than one source frame. Helmert transformations, which are extensively used to solve transformation parameters, can be separately solved between the target frame and one of the source frames.
Lihui Yao   +4 more
wiley   +1 more source

D‐NPC: Dynamic Neural Point Clouds for Non‐Rigid View Synthesis from Monocular Video

open access: yesComputer Graphics Forum, Volume 44, Issue 2, May 2025.
Abstract Dynamic reconstruction and spatiotemporal novel‐view synthesis of non‐rigidly deforming scenes recently gained increased attention. While existing work achieves impressive quality and performance on multi‐view or teleporting camera setups, most methods fail to efficiently and faithfully recover motion and appearance from casual monocular ...
Moritz Kappel   +7 more
wiley   +1 more source

Release of hatchery adult steelhead for angler opportunity increases potential for interactions with endemic steelhead

open access: yesEcosphere, Volume 9, Issue 10, October 2018., 2018
Abstract Translocation is often used to increase local abundance of fish and wildlife populations for conservation or harvest purposes, and effects of releases on recipient populations are context dependent. Release of non‐local animals intended for harvest can have negative demographic, genetic, and ecological risks to endemic populations when not ...
Charles S. Erdman   +3 more
wiley   +1 more source

Biodegradability of dissolved organic carbon in boreal peatland forest is affected by water table, labile carbon, and nitrogen availability but not forest harvesting alone

open access: yesSoil Science Society of America Journal, Volume 89, Issue 1, January/February 2025.
Abstract Around 30% of peatland in Nordic and Baltic countries has been drained for forestry. Drained peatlands are major sources of dissolved organic carbon (DOC) and nutrients to surface waters, contributing to global warming, eutrophication, and brownification.
Niko Kinnunen   +6 more
wiley   +1 more source

Channel Rectification and Signal Estimation Based on EIV Model in Massive MIMO System

open access: yesMathematical Problems in Engineering, Volume 2017, Issue 1, 2017., 2017
The performance of Massive MIMO is severely limited by channel estimation error, which is caused by pilot contamination and channel aging. In this paper, we propose an estimation algorithm based on the weighted total least‐squares method with errors‐in‐variables (EIV) model to alleviate the influence of pilot contamination and channel aging.
Liang Zhong   +3 more
wiley   +1 more source

Neue nichtlineare Ausgleichungsverfahren zur Anwendung in der Geodäsie und verwandten Gebieten

open access: yes, 2020
Corrected version: caption for fig. 6.4, 6.5 and 6.6. (originally: ''orthogonal distances'', corrected: ''slanted distances'')Korrigierte Fassung: Legenden in Abb. 6.4, 6.5 und 6.6.
Malissiovas, Georgios
core   +1 more source

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