Results 71 to 80 of about 5,281,681 (332)

Millennium-scale crossdating and inter-annual climate sensitivities of standing California redwoods. [PDF]

open access: yesPLoS ONE, 2014
Extremely decay-resistant wood and fire-resistant bark allow California's redwoods to accumulate millennia of annual growth rings that can be useful in biological research.
Allyson L Carroll   +2 more
doaj   +1 more source

Venetoclax‐Based Therapy as a Bridge to Hematopoietic Stem Cell Transplantation in Relapsed or Refractory Pediatric Acute Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Relapsed and/or refractory (R/R) pediatric acute leukemia carries a dismal prognosis, largely driven by chemoresistance to conventional salvage therapy. The BH3‐mimetic venetoclax, combined with chemotherapy or hypomethylating agents, has demonstrated efficacy in small clinical trials.
Katherine S. Colman   +9 more
wiley   +1 more source

Smarandache Idempotents in Loop Rings [PDF]

open access: yes, 2005
In this paper we establish the existence of S-idempotents in case of loop ...
Chetry, Moon K., Vasantha, W.B.
core   +1 more source

Evaluation of Anatomical and Physical Properties of Juvenile/Mature Wood of Populus alba and Populus × euramericana [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2009
In this study Populus alba native clone and Populus euramericana 476 clone trees from Gorgan University educative forest were used. Some applied anatomical and physical properties of these species were determined.
Davood Efhami, Ahmad reza Saraeyan
doaj   +1 more source

LONGITUDINAL VARIATION IN THE THICKNESS OF THE ANNUAL RING

open access: yesThe Forestry Chronicle, 1961
Foresters have often concentrated their attention on characteristics of trees which had an immediate practical application and have neglected fundamental features. Diameter growth is a good example. Usually it has been measured at one position on the bole at 5- or 10-year intervals.
openaire   +1 more source

Biphasic Clinical Course of Pediatric Cytomegalovirus‐Associated Immune Thrombocytopenia: Early Poor Treatment Response but Favorable Long‐Term Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad   +9 more
wiley   +1 more source

Radiocarbon Analysis Confirms the Annual Nature of Sagebrush Growth Rings [PDF]

open access: yesRadiocarbon, 2007
In the Great Basin of North America, big sagebrush (Artemisia tridentata Nutt.) growth rings can be used to reconstruct environmental changes with annual resolution in areas where there is otherwise little such information available. We tested the annual nature of big sagebrush wood layers using accelerator mass spectrometry (AMS) radiocarbon dating ...
Biondi, F.   +3 more
openaire   +3 more sources

Bone Mineral Density After Contemporary Treatment for Acute Lymphoblastic Leukaemia: A Matched Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen   +10 more
wiley   +1 more source

Crossdating Juniperus procera from North Gondar, Ethiopia [PDF]

open access: yes, 2010
The application of dendrochronology in (sub)tropical regions has been limited by the difficulty in finding trees with distinct annual rings that can be crossdated.
Touchan, R.   +11 more
core   +1 more source

Annual tree rings in the rainiest forests of the Americas

open access: yes, 2021
ilustraciones, mapas, tablas In this dissertation, I explore the dendrochronological potential of trees from a lowlands tropical wet forest (Precipitation over 7,200 mm y-1), without seasonal water deficit or flooding. I study the causes and sensitivity of annual growth rings to climate variables in several tree species by different methods. I analyzed
openaire   +2 more sources

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