Results 41 to 50 of about 2,736,764 (275)

Revised Computer Programs for Tree-Ring Research

, 1979
Three computer programs that are basic to the processing and development of tree -ring chronologies are now available. They were designed to refine and replace older programs that were previously furnished by the laboratory.
Graybill, Donald A.
core   +5 more sources

Variability of Anatomical Characteristics of the Wood of Mountain Ash (Sorbus aucuparia L.) in the Conditions of the North Caucasus

Лесной журнал
The article presents the results of a study of the structure of the wood of mountain ash (Sorbus aucuparia L.) in the mountains of the North Caucasus.
Mukhadi U. UmarovƗ, Evgenia S. Chavchavadze, Roman V. Shchekalev, Veronika O. Romanova, Ruslan M. Umarov   +4 more
doaj   +1 more source

Growth Rings in the Stem of Thuja orientalis L.

International Journal of Horticultural Science, 2000
During the winter dormancy period of 1998-99, the differentiation process of xylem and the formation of annual and pseudo-annual growth rings was studied in sections of the central stem of Thuja orientalis of different age (1-14 year old), starting from ...
G. Schmidt, Gy. Végvári
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Radial Increment of Dahurian Larch (Lárix dahúrica Turcz.) in the Conditions of the Stanovoy Highlands

Лесной журнал
The relevance of the work is due to the importance of assessing the sustainability and productivity of forest stands at the upper forest line, taking into account current climate changes.
Irina L. Vakhnina, Elena V. Noskova, Vladimir S. Myglan   +2 more
doaj   +1 more source

Effect of Climatic Conditions on Tree-Ring Widths in Black Locust (Robinia pseudoacacia L.) in the city of Wrocław

Drvna Industrija, 2016
The response of trees to weather conditions, expressed in the tree-ring widths, depends on the extent of urbanization in the area. Specifi c climatic conditions in an urban heat island can be expected to result in growth differences to trees growing in ...
Robert Kalbarczyk, Monika Ziemiańska, Aleksandra Machowska   +2 more
doaj   +1 more source

Disentangling the Evidence of Milankovitch Forcing From Tree-Ring and Sedimentary Records

Frontiers in Earth Science, 2022
Tree-ring records constitute excellent high-resolution data and provide valuable information for climate science and paleoclimatology. Tree-ring reconstructions of past temperature variations agree to show evidence for annual-to-centennial anomalies in ...
Samuli Helama, Hannu Herva, Laura Arppe, Björn Gunnarson, Björn Gunnarson, Thomas Frank, Jari Holopainen, Pekka Nöjd, Harri Mäkinen, Kari Mielikäinen, Raimo Sutinen, Mauri Timonen, Joonas Uusitalo, Markku Oinonen   +13 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source

Determination of the number of sapwood annual rings in oak in the region of southern Moravia

Journal of Forest Science, 2006
The paper deals with the determination of the number of sapwood annual rings in oak (Quercus sp.) in relation to altitude, locality and stand age. Several different groups of samples were used from two localities of southern Moravia.
M. Rybníček, H. Vavrčík, R. Hubený
doaj   +1 more source