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61 results for “alder”
Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences VIII - Soils 2015
This data set was collected as a part of Brian Houseman's MS Thesis, Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences (December 2017). Data include soil characteristics (temperature, moisture, depth, N, C, P, and pH) that were measured in 2015. Data were collected on study plots established across two burn scars (2004 Boundary Fire and 1971 Wickersham Dome Fire) within the Yukon-Tanana Uplands ecoregion of interior Alaska.
Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences IX - Plant Identifications 2015
This data set was collected as a part of Brian Houseman's MS Thesis, Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences (December 2017). Data include plant voucher collections that were collected on study plots in 2015. Data were collected on study plots established across two burn scars (2004 Boundary Fire and 1971 Wickersham Dome Fire) within the Yukon-Tanana Uplands ecoregion of interior Alaska.
Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences X - Research Project Site Information 2014
This data set was collected as a part of Brian Houseman's MS Thesis, Post-fire Variability in Siberian Alder in Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, and Ecosystem Consequences (December 2017). Data include research site location information. Data were collected on study plots established across two burn scars (2004 Boundary Fire and 1971 Wickersham Dome Fire) within the Yukon-Tanana Uplands ecoregion of interior Alaska.
Room Temperature Self-Healing in Soft Pneumatic Robotics: Autonomous Self-Healing in a Diels-Alder Polymer Network
<p>Healable soft robotic systems have been developed by constructing flexible membranes out of Diels?Alder (DA) polymer networks. In these components, relatively large amounts of damage, on the centimeter scale, can be healed, provided that the temperature is increased to 80?90 ?C. This article presents a new DA polymer network that can heal at room temperature through a smart design of the network that increases the molecular mobility in the material. This new material is used to develop the first healable soft robotic prototype that can autonomously recover from severe, realistic damage. The soft pneumatic hand can recover from various types of injuries, including being cut completely in half, without the need for a temperature increase. After healing, the performance of the soft robotic prototype is recovered.</p>
A Counterion-Directed Approach to the Diels-Alder Paradigm: Cascade Synthesis of Tricyclic Fused Cyclopropanes
<p>An approach to the intramolecular Diels–Alder reaction has led to a cascade synthesis of complex carbocycles composed of three fused rings and up to five stereocenters with complete stereocontrol. Computational analysis reveals that the reaction proceeds by a Michael/Michael/cyclopropanation/epimerization cascade in which size and coordination of the counterion is key.</p> <p>This date set contains DFT optimised structures as described in the title paper. </p>
Fig. 6 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 6. Mean frequency of A. incana, A. glutinosa and hybrid loci in groups of different height in 2014. Height groups:1: 3.55-4.88 m; 2: 2.50-3.49 m, 3: 1.52-2.43 m, 4: 0.65-1.44 m.
Fig. 4 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 4. Allele frequency of SSR marker L3.1 alleles in the mother tree seed plantation (30 individuals).
Fig. 3 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 3. Allele frequency of SSR marker L3.1 alleles in the experimental plantation (187 individuals).
Fig. 1 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 1. Morphological characterisation of experimental hybrid plantation. 1- A. glutinosa leaf shape; 2 to 4 intermediate leaf shape; 5 – A. incana leaf shape; S- Shrublike crown shape, O- outspread crown shape, C- compact crown shape; DC-Dark coarse bark, LC-Light coarse bark, LS- Light smooth bark.
Fig. 2 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 2. Polymorphism detection using electrophoretic separation of restriction enzyme digested PCR products and species-specific primers. A) Ptr1 (12F/R), CaiI; B) 5S rRNA gene, AdeI; C) Aln g 4 gene (2F/R), XapI; D) thiazole biosynthetic enzyme (s16 F/R), MspI; E) thiazole biosynthetic enzyme (s16 F/R), BshNI; F) pr10A gene (10 sB, 10sM, 10 F/R).
Рис. 4. Гистограммы распреΔеΛения гнезΔ из разных попуΛяций по биотопам (по Δоминирующему растению): 1 — крапива; 2 — вейник; 3 — поΛынь; 4 — поΛынь с разнотравьем; 5 — тростник; 6 — оΛьха и ΛеспеΔеца; 7 — спирея; 8 — разнотравье Fig. 4. Histograms of the nest distribution from different populations by biotopes (by the dominant plant): 1 — nettle; 2 — reed grass; 3 — wormwood; 4 — wormwood with herbs; 5 — reed; 6 — alder and lespedets; 7 — spirea; 8 — herbs in in the Ussuri region
Рис. 4. Гистограммы распреΔеΛения гнезΔ из разных попуΛяций по биотопам (по Δоминирующему растению): 1 — крапива; 2 — вейник; 3 — поΛынь; 4 — поΛынь с разнотравьем; 5 — тростник; 6 — оΛьха и ΛеспеΔеца; 7 — спирея; 8 — разнотравье Fig. 4. Histograms of the nest distribution from different populations by biotopes (by the dominant plant): 1 — nettle; 2 — reed grass; 3 — wormwood; 4 — wormwood with herbs; 5 — reed; 6 — alder and lespedets; 7 — spirea; 8 — herbs
Diels-Alder reactions dataset
<p>This is the dataset used for training the PhysNet model in "Reactive Atomistic Simulations of Diels-Alder Reactions: the Importance of Molecular Rotations". It contains energies, forces and dipole moments calculated at the M06-2X/6-31G* level of theory for structures of all 378 possible "amon" [1] structures of 2,3-dibromo-1,3-butadiene (DBB) and maleic anhydride (MA) at multiple geometries sampled by running Langevin dynamics at 1000 K at the PM7 level of theory. Additional geometries were generated by adaptive sampling [2,3]. In total, the dataset contains 224483 data points.</p> <p>For more details, see https://arxiv.org/abs/1906.07455.</p> <p>[1] Huang, B. and von Lilienfeld O. A., arXiv:1707.04146 (2017)<br> [2] Behler, J., Phys. Condens. Matter 26, 183001 (2014)<br> [3] Behler, J., Int. J. Quantum Chem. 115, 1032 (2015) </p>
Fig. 1 in A swimming medusoid gonophore in the life cycle of Ventromma halecioides (Alder, 1859) (Hydrozoa: Leptothecata: Kirchenpaueriidae)
Fig. 1. (A) Portion of colony showing the cauline apophysis and its associated nematotheca, and proximal part of a cladium with first hydrothecate internode and its thecae. (B) Expanded hydranth, showing colors in life. (C) Gonotheca with female gonophore. (D) Whole young male gonophore extracted from its gonotheca. (E-F) Newly-liberated female medusoid (E) and close-up showing polygonal oocytes (F). (G) Squashed female medusoid showing Y-shaped spadix. (H-I) Stained (H) and cross-section (I) through female medusoid showing the spadix encircled by single layer of oocytes. (J-K) Female medusoid escaping from its protective membrane (J) and newly-liberated individual (K). (L) Male medusoid enveloped in membrane. Scale bars: 50 μm (B), 100 μm (A, F), 200 μm (C, G-I, L), 400 μm (D, E, J, K).
Peroxidase-induced C-N Bond Formation via Nitroso Ene and Diels-Alder Reactions
<p>We herein provide the raw data that form the basis of the manuscript "Peroxidase-induced C-N Bond Formation via Nitroso Ene and Diels-Alder Reactions". Please find the abstract below:</p> <p>The formation of new carbon-nitrogen bonds is indisputably one of the most important tasks in synthetic organic chemistry. Here, nitroso compounds offer a highly interesting reactivity that complements traditional amination strategies, allowing for the introduction of nitrogen functionalities via ene-type reactions or Diels-Alder cycloadditions. In this study, we highlight the potential of horseradish peroxidase as biological mediator for the generation of reactive nitroso species under environmentally benign conditions. Exploiting a non-natural peroxidase reactivity, in combination with glucose oxidase as oxygen-activating biocatalyst, aerobic activation of a broad range of <em>N</em>-hydroxycarbamates and hydroxamic acids is achieved. Thus both intra- and intermolecular nitroso-ene as well as nitroso-Diels-Alder reactions are performed with high efficiency. Relying on a commercial and robust enzyme system, the aqueous catalyst solution can be recycled over numerous reaction cycles without significant loss of activity. Overall, this green and scalable C-N bond-forming strategy enables the production of allylic amides and various <em>N</em>-heterocyclic building blocks utilizing only air and glucose as sacrificial reagents.</p>
Nitrogen fixation, nodule respiration, and nodule Frankia identiy in alder growing in control, N-fertilized, and P-fertilized stands.
This data file includes data of simultaneous measurements of nitrogen fixation and nodule respiration in nodule clusters where Frankia identities were determined using molecular techniques from Alnus tenuifolia growing in replicate control, N-fertilized, and P-fertilized mid-successional stands along the Tanana River.
Nitrogen and Phosphorus resorption of thin-leaf alder growing in control, N-fertilized, and P-fertilized plots across a floodplain successional gradient.
This file includes data for leaf N and P concentrations, specific leaf weight, and N and P resorption for thin-leaf alder during the 2009 growing in control, N-fertilized, and P-fertilized stands in early-, mid- and late-successional stages along the Tanana River.
Datasets and images of publication: Self-healing and high interfacial strength in multi-material soft pneumatic robots via reversible Diels-Alder bonds
<p>Data and Figures of the publication:</p> <p>Terryn, S.; Roels, E.; Brancart, J.; Assche, G.V.; Vanderborght, B. Self-Healing and High Interfacial Strength in Multi-Material Soft Pneumatic Robots via Reversible Diels–Alder Bonds. <em>Actuators</em> <strong>2020</strong>, <em>9</em>, 34.</p>
Fig. 5. Hybrid 5 in E Va L U At I O N O F A L L E L I C C O N T E N T I N A N Experimental Alder (Alnus Spp.) Plantation
Fig. 5. Hybrid 5-year seedlings mean height (Hv) and A.glutinosa allele content.
Data for: Evaluating Golden-winged Warbler use of alder and aspen communities managed with shearing in the western Great Lakes
<p>Best management practices are often written by researchers to guide land managers and landowners in the creation of habitat for wildlife species of interest. These documents are based on research evaluating the habitat needs of a species, but also describe tools and strategies managers can implement to create or restore desired conditions. Shrub and sapling shearing is a management practice often used to improve habitat for early-successional species, yet little monitoring or research has focused on wildlife response to shearing. The goal of this research was to formally evaluate the effect of shrub and sapling shearing as a best management strategy for Golden-winged Warbler (<em>Vermivora</em> <em>chrysoptera</em>) conservation at a regional scale. Specifically, we surveyed for male Golden-winged Warblers during the breeding season in sheared sites and untreated reference sites across portions of the western Great Lakes to assess the effects of 1) management status (i.e., sheared aspen or alder vs un-treated sites), and 2) the patch-level vegetation characteristics on male abundance. We found that male Golden-winged Warbler abundance was twice as high in sheared sites than in mature reference sites and peaked when sapling cover was ~40%. Male abundance was also negatively associated with percent cover of forbs and non-vegetated ground. These findings highlight the importance of patch-level heterogeneity when implementing shearing treatments for Golden-winged Warblers, and demonstrate the potential need for pre-treatment site assessments to help focus conservation efforts for this species. Ultimately, our results support the use of a site-specific, nuanced approach to shearing implementation to maximize cost efficiency and desired species outcomes.</p>
Acceleration of Diels-Alder reactions by mechanical distortion
<p>Challenges in quantifying how force affects bond formation have hindered the widespread adoption of mechanochemistry. Here, parallel tip-based methods are used to determine reaction rates, activation energies, and activation volumes of force-accelerated [4+2] Diels-Alder cycloadditions between surface-immobilized anthracene and four dienophiles that differ in electronic and steric demand. The rate dependences on pressure are unexpectedly strong, and significant differences are observed between the dienophiles. Multiscale modeling demonstrates that, in proximity to a surface, mechanochemical trajectories ensue that are distinct from those observed solvothermally or under hydrostatic pressure. These results provide a framework for anticipating how experimental geometry, molecular confinement, and directed force contribute to mechanochemical kinetics.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.