Results 31 to 40 of about 12,108,065 (316)

Integrated transcriptomic and metabolomic analysis reveals the effects of polyploidization on the lignin content and metabolic pathway in Eucalyptus

open access: yesBiotechnology for Biofuels and Bioproducts, 2023
Background Lignin is a major restriction factor for the industrial production of biomass resources, such as pulp and bioenergy. Eucalyptus is one of the most important sources of pulp and bioenergy.
Tingting Xu   +7 more
doaj   +1 more source

The priority R-tree

open access: yesACM Transactions on Algorithms, 2004
We present the priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O (( N / B ) 1−1/ d + T / B ) I/Os ...
Arge, Lars   +3 more
openaire   +9 more sources

Group k- Nearest Neighbor Query Method for Uncertainty Data in Obstructed Spaces

open access: yesJournal of Harbin University of Science and Technology, 2019
To deal with the problem of group k nearest neighbor query method for uncertainty data in obstructed spaces, this paper presents the method of the PkOGNN(probabilistic k obstructed group nearest neighbor)query .The PkOGNN query method mainly includes ...
WAN Jing   +4 more
doaj   +1 more source

Predicting total and component biomass of Chinese fir using a forecast combination method

open access: yesiForest - Biogeosciences and Forestry, 2017
Accurate estimates of tree biomass are critical for forest managers to assess carbon stock. Biomass of Chinese fir (Cunninghamia lanceolata [Lamb.] Hook.) in southern China was assessed by three alternative methods.
Zhang X   +4 more
doaj   +1 more source

Efficient historical R-trees [PDF]

open access: yesProceedings Thirteenth International Conference on Scientific and Statistical Database Management. SSDBM 2001, 2002
The historical R-tree (HR-tree) is a spatio-temporal access method aimed at the retrieval of window queries in the past. The concept behind the method is to keep an R-tree for each timestamp in history, but to allow consecutive trees to share branches when the underlying objects do not change.
Yufei Tao 0001, Dimitris Papadias
openaire   +1 more source

Streptococcus thermophilus DM287 and DM294 as candidate oral probiotic strains with anti-biofilm activity against cariogenic pathogens

open access: yesFrontiers in Microbiology
Streptococcus mutans and Streptococcus sobrinus are key contributors to dental caries within a broader polymicrobial biofilm community, driving pathogenicity through biofilm and dental plaque formation rather than direct tissue invasion.
Jeong-Hoo Lee   +5 more
doaj   +1 more source

The Impacts of Environment on Egg Fecundity of Thaumetopoea solitaria on different types of Trees in the North of Iraq

open access: yesScience Journal of University of Zakho, 2022
In this study, egg fecundity of pistachio processionary bud moth Thaumetopoea solitaria (Lepidoptera- Notodontidae) on three different types of trees was investigated in Koya, Haybat Sultan forest during 2018 and 2019.
Muzafar K. Omer, Rawaz R. Hamadamin
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Rowan Tree Church Annual Report, 1993 [PDF]

open access: yes, 1993
This digital asset was created from the original digital scans by Rev. Paul V. Beyerl and provided to the Valdosta State University, Archives & Special Collections to be part of their Rowan Tree Church Periodicals Collection of the New Age Movements ...
Rowan Tree Church
core  

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