Results 21 to 30 of about 804,787 (398)
Imaging and Spectroscopy of Natural Fluorophores in Pine Needles
Plants, 2018 Many plant tissues fluoresce due to the natural fluorophores present in cell walls or within the cell protoplast or lumen. While lignin and chlorophyll are well-known fluorophores, other components are less well characterized.
L. Donaldson, N. Williams
semanticscholar +1 more source
Emergency Medicine Journal, 2008 A 50-year-old man with a history of heroin addiction was admitted to hospital with chest pain. A description of his symptoms and the ECG suggested pericarditis, and transthoracic echocardiography revealed a small pericardial effusion. A chest radiograph showed needle-shaped densities in his arms and neck (fig 1, arrows).
D Montaigne +2 more
openaire +5 more sources
Features of elemental composition and pigment complex of the Siberian larch needles under impact of Irkutsk aluminum smelter emissions [PDF]
Сибирский лесной журнал, 2022 The paper presents data on the content of 32 chemical elements in the needles of the Siberian larch Larix sibirica Ledeb. trees growing at different distances from the Irkutsk aluminum smelter (IrkAS), as well as in the background areas. It is shown that
L. V. Afanas’eva +3 more
doaj +1 more source
How Placebo Needles Differ From Placebo Pills?
Frontiers in Psychiatry, 2018 Because acupuncture treatment is defined by the process of needles penetrating the body, placebo needles were originally developed with non-penetrating mechanisms.
Younbyoung Chae, Ye-Seul Lee, P. Enck
semanticscholar +1 more source
Casimir interaction of rod-like particles in a two-dimensional critical system [PDF]
, 2016 We consider the fluctuation-induced interaction of two thin, rod-like particles or "needles" immersed in a two-dimensional critical fluid of Ising symmetry right at the critical point.
Burkhardt, T. W., Eisenriegler, E.
core +2 more sources
Татуировки алеутов: инструменты, краски, орнамент, смыслы
Искусство Евразии, 2023 Традиция декорирования тела является одной из древнейших смысловых практик в истории человечества. В статье предлагается реконструкция традиции татуировок у алеутов, одного из древнейших народов Северной Пацифики.
Понкратова, И.Ю. +2 more
doaj +1 more source
Needle placement errors: do we need steerable needles in interventional radiology?
Medical devices, 2018 Purpose Accurate and precise needle placement is of utmost importance in interventional radiology. However, targeting can be challenging due to, eg, tissue motion and deformation.
T. D. de Jong +5 more
semanticscholar +1 more source
Biology, Injury, and Control of the European Needle-bending Midge (Diptera: Cecidomyiidae) on Scotch Pine in Michigan [PDF]
, 2017 Contarinia baeri is univoltine in Michigan. Adults emerge in spring, and females deposit eggs in small clusters in the sheaths of new-growth pine needles. Larvae hatch shortly thereafter and there are three larval instars.
Sapio, Frank J +2 more
core +2 more sources
Concepts for augmented reality visualisation to support needle guidance inside the MRI
Healthcare Technology Letters, 2018 During MRI-guided interventions, navigation support is often separated from the operating field on displays, which impedes the interpretation of positions and orientations of instruments inside the patient's body as well as hand–eye coordination.
André Mewes +5 more
doaj +1 more source