Results 51 to 60 of about 2,951,677 (344)

Progress in South America Dendrochronology [PDF]

open access: yes, 2002
South America extends from 11°N to 62°S. Major boundaries such as the Andes on the western side of the continent and the land mass in the tropics create north-south and west-east variations in climate and ecosystems.
Boninsegna, Jose Armando
core   +1 more source

A Microcomputer-Based Annual Ring Measurement System

open access: yesThe Forestry Chronicle, 1983
This paper describes the interfacing and programming of a Radio Shack TRS-80 Model III microcomputer and the DIGI-MlC, one of the newest automated annual ring measurement systems to come on the market since introduction of the ADDO-X. The combined equipment allows rapid and straightforward measurement, storage, reviewing, editing and analysis of ...
G. A. Jordan, R. H. Ballance
openaire   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

Annual tree rings in Piptadenia gonoacantha (Mart.) J.F.Macbr. in a restoration experiment in the Atlantic Forest: potential for dendroecological research

open access: yesActa Botânica Brasílica, 2016
The tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms.
Arno Fritz das Neves Brandes   +3 more
doaj   +1 more source

Olive tree-ring problematic dating: a comparative analysis on Santorini (Greece). [PDF]

open access: yesPLoS ONE, 2013
Olive trees are a classic component of Mediterranean environments and some of them are known historically to be very old. In order to evaluate the possibility to use olive tree-rings for dendrochronology, we examined by various methods the reliability of
Paolo Cherubini   +8 more
doaj   +1 more source

Xylem plasticity allows rapid hydraulic adjustment to annual climatic variability [PDF]

open access: yes, 2018
Thanks to acclimation, trees overcome environmental changes and endure for centuries. The anatomy of water conducting cells is an important factor determining plant success.
Bryukhanova, Marina, Fonti, Patrick
core  

SUSY Dark Matter in the Universe- Theoretical Direct Detection Rates

open access: yes, 2002
Exotic dark matter together with the vacuum energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in the Galaxy.
A. Bottino   +19 more
core   +1 more source

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

Secular Evolution and the Formation of Pseudobulges in Disk Galaxies

open access: yes, 2004
We review internal processes of secular evolution in galaxy disks, concentrating on the buildup of dense central features that look like classical, merger-built bulges but that were made slowly out of disk gas. We call these pseudobulges. As an existence
Arp H   +95 more
core   +2 more sources

Identification of anatomically non-distinct annual rings in tropical trees using stable isotopes

open access: yesTrees, 2011
Annual rings are generally not anatomically distinct in trees growing in the humid tropics. The possibility to use radial variation in stable isotopes (δ18O and δ13C) for the identification of annual rings in these trees was investigated in two species ...
T. Pons, G. Helle
semanticscholar   +1 more source

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