Results 71 to 80 of about 1,368,103 (279)
Extracting a common high frequency signal from Northern Quebec black spruce tree-rings with a Bayesian hierarchical model [PDF]
Climate of the Past, 2009 One basic premise of dendroclimatology is that tree rings can be viewed as climate proxies, i.e. rings are assumed to contain some hidden information about past climate.
J.-J. Boreux +4 more
doaj
Tracing volcanic eruptions and anthropogenic pollution in tree rings: preliminary results from synchrotron-light chemical analyses [PDF]
, 2023 We analysed larch trees from high elevation in northern Italy for Hg with a Lumex RA-915M Mercury Analyzer with pyrolyzer PYRO-915+) and for S, Zn, Cu, Ni, Pb (by synchrotron light X-ray fluorescence at beamline i18 Diamond Light Source, UK). Hg analyses
Manfredo Capriolo +9 more
core
Anticoagulation Treatment Response Among Phenotypic ESUS Clusters: Evidence From CASPR
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To evaluate treatment effect heterogeneity across phenotypic clusters of patients with cryptogenic embolic stroke using causal inference methods. Methods From a retrospective, multicenter cohort of patients with cryptogenic embolic stroke, we estimated the treatment effect of anticoagulation versus antiplatelet therapy in patients ...
Elena Badillo Goicoechea +53 more
wiley +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004 The work was focused on problematics of annual-rings width according to position within the tree stem. Annual-ring widths, ratio of late wood and early wood by spruce with compression wood were investigated.
Vladimír Gryc, Jiří Holan
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective This study aims to investigate lifestyle‐related factors in patients with psoriatic arthritis (PsA) and their association with disease activity measurements. Methods This multicenter cohort included 938 patients who were newly diagnosed with PsA between 2013 and 2023.
Batoul Hojeij +11 more
wiley +1 more source
Simulating oxygen isotope ratios in tree ring cellulose using a dynamic global vegetation model [PDF]
Biogeosciences, 2016 Records of stable oxygen isotope ratios in tree rings are valuable tools to reconstruct past climatic conditions and investigate the response of trees to those conditions.
S. G. Keel +5 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Interstitial lung disease (ILD) is a significant cause of morbidity and mortality in patients with inflammatory rheumatic disorders (IRDs). High‐resolution computed tomography (HRCT) is widely considered the gold standard for the noninvasive assessment of ILD; however, its interpretation is constrained by substantial interobserver variability and the ...
Alexander Pfeil +7 more
wiley +1 more source
Climatic Response of Densitometric Properties in Semiarid Site Tree Rings
, 1986 X-ray densitometry has proven useful in dendroclimatic research on relatively fast growing, complacent trees in mesic climates. The best dendrochronological materials, however, come from semiarid-site conifers that grow very slowly, have missing rings ...
Cleaveland, Malcolm K.
core +5 more sources
Analiza dendroecologică a regimului perturbărilor în pădurile din nordul Carpaţilor Orientali [Dendroecological analysis of disturbance regime in forests form the North of Eastern Carpathian] [PDF]
Bucovina Forestieră, 2003 The present structure of natural forest ecosystems from the North of Eastern Carpathian, his heterogeneity, is the results of the historic disturbances.
Popa I
doaj
BioResources, 2014 Ring width represents the total width of cells in a growing season. Relatively few studies have identified which of the parameters, cell number, size, or wall thickness is the greater contributor to variations in ring width.
Jinmei Xu +3 more
doaj +1 more source