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1. Loads borne by a tie-in point (TIP) during arboricultural climbing operations

Author:
Kane, Brian
Source:
Urban forestry & urban greening 2020 v.49 pp. 126625
ISSN:
1618-8667
Subject:
trees,   etc   ; arboriculture; leaves;     Show all 3 Subjects
Abstract:
... Failure of a tie-in point (TIP) in tree climbing can have severe consequences, yet few studies have quantified the loads borne by and load-bearing capacity of TIPs. In two separate experiments, loads borne by the TIP during (i) abrupt stops while a climber descended and (ii) simulated climber falls were quantified for a variety of TIPs, rope types, and rope lengths (distance between the TIP and th ...
DOI:
10.1016/j.ufug.2020.126625

2. Quantifying tension and deflection in pre-tensioned speedlines carrying a load

Author:
Kane, Brian; Arwade, Sanjay R.
Source:
Urban forestry & urban greening 2020 v.48 pp. 126514
ISSN:
1618-8667
Subject:
trees,   etc   ; arborists; bending stress; logging;     Show all 4 Subjects
Abstract:
... Arborists use speedlines to move debris; efficiently between the tree from which the debris is generated and the landing. To maintain vertical clearance over obstacles, speedlines are pretensioned, but there are no rigorous empirical data to quantify the tension in a pretensioned speedline when it carries a load. Neither has its deflection under load been quantified. We measured the mid-span defle ...
DOI:
10.1016/j.ufug.2019.126514

3. The New Tree of Eukaryotes

Author:
Burki, Fabien; Roger, Andrew J.; Brown, Matthew W.; Simpson, Alastair G.B.
Source:
Trends in ecology & evolution 2020 v.35 no.1 pp. 43-55
ISSN:
0169-5347
Subject:
trees,   etc   ; eukaryotic cells; phylogeny; protists;     Show all 4 Subjects
Abstract:
... For 15 years, the eukaryote Tree of Life (eToL) has been divided into five to eight major groupings, known as ‘supergroups’. However, the tree has been profoundly rearranged during this time. The new eToL results from the widespread application of phylogenomics and numerous discoveries of major lineages of eukaryotes, mostly free-living heterotrophic protists. The evidence that supports the tree h ...
DOI:
10.1016/j.tree.2019.08.008

4. Potential function of CbuSPL and gene encoding its interacting protein during flowering in Catalpa bungei

Author:
Wang, Zhi; Zhu, Tianqing; Ma, Wenjun; Fan, Erqin; Lu, Nan; Ouyang, Fangqun; Wang, Nan; Yang, Guijuan; Kong, Lisheng; Qu, Guanzheng; Zhang, Shougong; Wang, Junhui
Source:
BMC plant biology 2020 v.20 no.1 pp. 105
ISSN:
1471-2229
Subject:
trees,   etc   ; Arabidopsis; Catalpa bungei; flowers; transcription factors;     Show all 5 Subjects
Abstract:
... BACKGROUND: “Bairihua”, a variety of the Catalpa bungei, has a large amount of flowers and a long flowering period which make it an excellent material for flowering researches in trees. SPL is one of the hub genes that regulate both flowering transition and development. RESULTS: SPL homologues CbuSPL9 was cloned using degenerate primers with RACE. Expression studies during flowering transition in ...
DOI:
10.1186/s12870-020-2303-z
PubMed:
32143577
PubMed Central:
PMC7060540

5. Genetic-programming-based multi-objective optimization of strategies for home energy-management systems

Author:
Zupančič, Jernej; Filipič, Bogdan; Gams, Matjaž
Source:
Energy 2020 v.203 pp. 117769
ISSN:
0360-5442
Subject:
trees,   etc   ; algorithms; decision support systems; energy;     Show all 4 Subjects
Abstract:
... Home energy-management systems can optimize performance either by computing the next step dynamically – online, or rely on a precomputed strategy used to introduce the next decision – offline. Further, such systems can optimize based on only one or several objectives. In this paper, the multi-objective optimization of offline strategies for home energy-management systems is addressed. Two approach ...
DOI:
10.1016/j.energy.2020.117769

6. Vertical Gradient of Epiphytic Bryophytes in the Amazon: the Rule and its Exception

Author:
Garcia, Eline T.; Oliveira, Sylvia M.; Tavares-Martins, Ana C. C.; Pôrto, Kátia C.
Source:
Cryptogamie 2020 v.41 no.5 pp. 55-65
ISSN:
1776-0992
Subject:
trees,   etc   ; Bryophyta; canopy; epiphytes; forests; species richness;     Show all 6 Subjects
Abstract:
... In Amazonian Terra Firme vegetation, epiphytic bryophytes present a deterministic distribution along height zones in host trees, at both local and regional scale. Recent findings about the influence of vegetation structure variation on epiphytic bryophyte assemblages suggest that the vertical gradient may also change among adjacent vegetation types. In order to analyze this influence, bryophytes w ...
DOI:
10.5252/cryptogamie-bryologie2020v41a5

7. The Role of Vegetation in the Morphological Decoding of Lisbon (Portugal)

Author:
Justo, Rui; Matos Silva, Maria
Source:
Land 2020 v.9 no.1
ISSN:
2073-445X
Subject:
trees,   etc   ; landscapes; landscaping; urban areas; vegetation; Portugal;     Show all 6 Subjects
Abstract:
... In the academic context, especially in the fields of architecture, landscape architecture, and urbanism, urban form studies are assumed to be a vehicle for reflection on the built and unbuilt city. This essay aims to challenge the most common and stabilized morphological approaches in the city reading process, invoking vegetation and its role as an element of urban composition that is recurrently ...
DOI:
10.3390/land9010018

8. Cars, trees, and house prices: Evaluation of the residential environment as a function of numbers of cars and trees in the street

Author:
Staats, Henk; Swain, Ritwik
Source:
Urban forestry & urban greening 2020 v.47 pp. 126554
ISSN:
1618-8667
Subject:
street trees,   etc   ; computers; income; models; photographs; prices;     Show all 6 Subjects
Abstract:
... When imagining a perfect home, many people visualize a tree-lined, leafy neighborhood, and a road that only has a few parked cars. But how strongly do people really appreciate having fewer parked cars and more street trees, both in terms of an affective appreciation of the home, and in terms of a price estimate of the home? This experiment, with 281 participants recruited from Leiden University, a ...
DOI:
10.1016/j.ufug.2019.126554

9. For common community phylogenetic analyses, go ahead and use synthesis phylogenies

Author:
Li, Daijiang; Trotta, Lauren; Marx, Hannah E.; Allen, Julie M.; Sun, Miao; Soltis, Douglas E.; Soltis, Pamela S.; Guralnick, Robert P.; Baiser, Benjamin
Source:
Ecology 2019 v.100 no.9 pp. e02788
ISSN:
0012-9658
Subject:
trees,   etc   ; nucleotide sequences; phylogeny;     Show all 3 Subjects
Abstract:
... Should we build our own phylogenetic trees based on gene sequence data, or can we simply use available synthesis phylogenies? This is a fundamental question that any study involving a phylogenetic framework must face at the beginning of the project. Building a phylogeny from gene sequence data (purpose‐built phylogeny) requires more effort, expertise, and cost than subsetting an already available ...
DOI:
10.1002/ecy.2788
PubMed:
31225900
PubMed Central:
PMC7079099

10. A Retroactive Approach for Dynamic Shortest Path Problem

Author:
Sunita,; Garg, Deepak
Source:
National Academy science letters 2019 v.42 no.1 pp. 25-32
ISSN:
0250-541X
Subject:
trees,   etc   ; algorithms; graphs;     Show all 3 Subjects
Abstract:
... Dynamic shortest path algorithms modify the existing shortest path tree or graph, taking into account changes in the underlying graph configuration. In the premise of this paper, the dynamic Dijkstra algorithm is specifically considered which is used for the solution of single source shortest path problem in dynamic graphs. Dynamic Single Source Shortest Path (DSSSP) problem is considered from a c ...
DOI:
10.1007/s40009-018-0674-6

11. The novel use of proximal photogrammetry and terrestrial LiDAR to quantify the structural complexity of orchard trees

Author:
Murray, Jon; Fennell, Joseph T.; Blackburn, George Alan; Whyatt, James Duncan; Li, Bo
Source:
Precision agriculture 2020 v.21 no.3 pp. 473-483
ISSN:
1385-2256
Subject:
trees,   etc   ; fruit yield; lidar; orchards; photogrammetry; remote sensing; United Kingdom;     Show all 7 Subjects
Abstract:
... Within the agrifood sector, the production of high yields is a driver for UK orchard husbandry. Currently, orchard tree management is typically a non-discriminatory method with all trees subjected to the same interventions. Previous studies indicate that structural complexity of individual orchard trees is an indicator for future yield, which can guide the management of individual trees. However, ...
DOI:
10.1007/s11119-019-09676-4

12. Unobserved heterogeneity in auctions under restricted stochastic dominance

Author:
Luo, Yao
Source:
Journal of econometrics 2020 v.216 no.2 pp. 354-374
ISSN:
0304-4076
Subject:
trees,   etc   ; auctions; econometric models; economic analysis; economic theory;     Show all 5 Subjects
Abstract:
... We study the identification of first-price auctions with nonseparable unobserved heterogeneity. In particular, we extend Hu et al. (2013) by relaxing the first-order stochastic dominance condition. Instead, we assume restricted stochastic dominance relations among value quantile functions and show that the same relations pass to bid quantile functions. An ordered tree summarizes these relations an ...
DOI:
10.1016/j.jeconom.2019.07.009

13. Concentrations and distributions of polybrominated diphenyl ethers (PBDEs) in surface soils and tree bark in Inner Mongolia, northern China, and the risks posed to humans

Author:
Chen, Yijing; Zhang, Aiqin; Li, Huixiang; Peng, Yu; Lou, Xinyu; Liu, Minghui; Hu, Jicheng; Liu, Chen; Wei, Baokai; Jin, Jun
Source:
Chemosphere 2020 v.247 pp. 125950
ISSN:
0045-6535
Subject:
trees,   etc   ; air; bark; decabromodiphenyl ether; grasslands; humans; risk; soil; China;     Show all 9 Subjects
Abstract:
... Three functional zones, namely the industrial (IND), the agricultural (AGR), and the grassland (GRA) areas from Inner Mongolia (a remote province in northern China), were selected to evaluate the levels and distributions of PBDEs and the risks posed to local humans. PBDEs concentrations in surface soils and tree bark were detected and the air levels were estimated based on bark measurements. The t ...
DOI:
10.1016/j.chemosphere.2020.125950

14. Integrated multi-scale reservoir data representation and indexing for reservoir data management and characterization

Author:
Li, Fangyu; Gao, Chaoli; Liu, Yanqin; Huang, Kailang; Pan, Mao; Chen, Xi; Yuan, Yaoli
Source:
Computers & geosciences 2020 v.138 pp. 104433
ISSN:
0098-3004
Subject:
trees,   etc   ; algorithms; computer software; computers; digital images; information management;     Show all 6 Subjects
Abstract:
... Single-scale models cannot satisfy the requirements of oil reservoir researchers. The management of multi-scale data is thus important to ensure appropriate representation of geological structures and reservoir characterization. However, existing methods generally focus on two-dimensional maps. Moreover, existing multi-scale models and 3D indexing methods are not completely suitable for organizing ...
DOI:
10.1016/j.cageo.2020.104433

15. The contribution of fruit and leaves to the dynamic response of secondary branches of orange trees

Author:
Castro-Garcia, Sergio; Aragon-Rodriguez, Fernando; Arias-Calderón, Rocío; Sola-Guirado, Rafael R.; Gil-Ribes, Jesús A.
Source:
Biosystems engineering 2020 v.193 pp. 149-156
ISSN:
1537-5110
Subject:
fruit trees,   etc   ; Citrus; accelerometers; branches; fruits; harvesting; leaves; oranges; vibration;     Show all 9 Subjects
Abstract:
... The current commercial technologies for mass harvesting fruit are based on the application of forced vibration to the tree, which is transmitted to the fruits causing their detachment. The dynamic behaviour of the plant under forced vibration is of special interest to improve the design and use of the machinery. The objective of this work is to determine the effect of fruit and leaves on the dynam ...
DOI:
10.1016/j.biosystemseng.2020.02.019

16. The past distribution of Abies nebrodensis (Lojac.) Mattei: results of a multidisciplinary study

Author:
Pasta, Salvatore; Sala, Giovanna; La Mantia, Tommaso; Bondì, Cristina; Tinner, Willy
Source:
Vegetation history and archaeobotany 2020 v.29 no.3 pp. 357-371
ISSN:
0939-6314
Subject:
trees,   etc   ; Abies; archaeology; forestry; herbaria; mountains; niches; pollen; wood; Sicily;     Show all 10 Subjects
Abstract:
... The present study provides a critical review of the available historical data on the distribution of Abies nebrodensis, a fir tree endemic to Sicily. The only (somewhat ambiguous) references to its occurrence on Mount Etna date back to the 1st century BC and refer back to the 3rd century BC. Although the botanical and forestry literature and the very few surviving herbarium specimens do not prove ...
DOI:
10.1007/s00334-019-00747-0

17. The ideal frequency of temperature data collection in compostability experiments on domestic organic residues

Author:
Dal Bosco, Tatiane Cristina; Michels, Roger Nabeyama; Bertozzi, Janksyn; Taiatele Junior, Ivan; Hashimoto, Elizabeth Mie
Source:
Environmental technology 2020 v.41 no.9 pp. 1160-1166
ISSN:
1479-487X
Subject:
trees,   etc   ; composting; data collection; decision making; microprocessors; monitoring; temperature;     Show all 7 Subjects
Abstract:
... One of the main analytical variable to indicate the evolution and the phases of the composting process is temperature, whose constant monitoring is fundamental for decision making. However, studies usually perform collection of temperature data with a daily frequency due to the operational difficulty in obtaining this information from manually collected samples. Thus, the aim of this study was to ...
DOI:
10.1080/09593330.2018.1523233

18. The effect of end-point adjustments on smoothing splines used for tree-ring standardization

Author:
Bussberg, Nicholas W.; Maxwell, Justin T.; Robeson, Scott M.; Huang, Chunfeng
Source:
Dendrochronologia 2020 v.60 pp. 125665
ISSN:
1125-7865
Subject:
trees,   etc   ; data collection; dendroclimatology; forests; growth rings; variance;     Show all 6 Subjects
Abstract:
... The cubic smoothing spline has been a popular method for detrending tree-ring data since the 1980s. The common implementation of this procedure (e.g., ARSTAN, dplR) uses a unique method for determining the smoothing parameter that is widely known as the %n criterion. However, this smoothing parameter selection method carries the assumption that end point effects are ignorable. In this paper, we co ...
DOI:
10.1016/j.dendro.2020.125665

19. The effect of samara wing presence on predation of Acer pseudoplatanus (Sapindaceae) seeds on the ground

Author:
der Weduwen, Dagmar; Ruxton, Graeme D.
Source:
Plant species biology 2020 v.35 no.2 pp. 158-161
ISSN:
0913-557X
Subject:
trees,   etc   ; Acer pseudoplatanus; antipredatory behavior; granivores; predation; predators; samaras; seeds;     Show all 8 Subjects
Abstract:
... The key selective pressure shaping the morphology of samaras is seen as enhancing primary wind‐borne dispersal from the parent plant to the ground. However, the consequences of the samara wing of primarily wind‐dispersed tree species for post‐dispersal processes has not been well studied. We explored whether the presence of this wing in Acer pseudoplatanus either deters or promotes predation after ...
DOI:
10.1111/1442-1984.12266

20. Adaptive random sample consensus approach for segmentation of building roof in airborne laser scanning point cloud

Author:
Dal Poz, Aluir P.; Yano Ywata, Michelle S.
Source:
International journal of remote sensing 2020 v.41 no.6 pp. 2047-2061
ISSN:
1366-5901
Subject:
trees,   etc   ; algorithms; buildings; data collection; lidar; remote sensing; structural roofs;     Show all 7 Subjects
Abstract:
... This work proposes a three-step method for segmenting the roof planes of buildings in Airborne Laser Scanning (ALS) data. The first step aims at mainly avoiding the exhaustive search for planar roof faces throughout the ALS point cloud. Standard algorithms for processing ALS point cloud are used to isolate building regions. The second step of the proposed method consists in segmenting roof planes ...
DOI:
10.1080/01431161.2019.1683644