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387 results for “Helix”
HELIX: Data-driven characterization of Brazilian land snails
<p>The Subulinidae family of Brazilian land snails includes similar species with particular morphometrical characteristics. We surveyed the metro area of the Juiz de Fora/MG city and collected snails from a representative private property with centered at 21º42'31''S, 43º21'26'', alt. 795m, with red-yellow oxisol, 8.5 pH, and Cwa climate. We performed monthly collections in a ecosystem with <em>Pennisetum purpureum</em>, <em>Brachiaria mutica</em>, <em>Paspalum notatum</em>, <em>Bidens pilosa</em>, <em>Leucena leucocephala</em>, and <em>Ricinus communis</em> plants near a river flow in the 2008/Sep - 2009/Aug timespan. There, we defined an equally spaced transect of 200m with ten collection points and gathered 50 x 50 cm, 500 g litter-falls. Samples were sieved by 2.0 mm meshs, and living specimens were cleaned and fixed in a Railliet-Henry liquid, their shells removed, dried, and separated. Finally, we label the species and create the Helix dataset. We measured each shell <em>Height</em>, <em>Diameter</em>, <em>Spire height</em>, and <em>Aperture width</em> and <em>height</em> with a pachymeter. The dataset includes 518 instances labeled as <em><strong>Beckianum beckianum</strong></em> (28.8%), <em><strong>Dysopeas muibum</strong></em> (21.2%), <em><strong>Allopeas gracilis</strong></em> (9.7%), <em><strong>Leptinaria unilamellata </strong></em>(12%), and <em><strong>Subulina octona</strong></em> (28.3%). </p>
HELiX UAS data for SPLASH 2022
<p>This dataset includes data files collected during flights of the HELiX uncrewed aircraft system (UAS) for the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH). Flights were conducted at the Avery Picnic and Kettle Ponds SPLASH sites during spring 2022 and capture the evolution of the snow surface during spring snow melt.</p>
An ice-tethered, non-floating Trident Sensors Helix Beacon during SCALE 2019 Spring Cruise
<p><strong>Brief data description</strong></p> <p>A Trident Sensors Helix Beacon identical to the one described in Womack et al. (2022), was deployed on sea ice at latitude 59.47<sup>o</sup> S and longitude 10.89<sup>o</sup> E, on 30 October 2019, as part of the <em>Southern oCean seAsonal Experiment</em> (SCALE; Ryan-Keogh and Vichi, 2022) aboard the SA Agulhas II.</p> <p>The region where the Trident was deployed (Antarctic marginal ice zone) consisted of first-year ice conditions, with an average thickness of 80-90 cm. The device was deployed by hand by three people, lowered by crane from the ship to the ice on a basket cradle.</p> <p>The temporal resolution was approximately four hours. The survival of the Trident depended on staying fixed to the ice floe and its battery life. The Trident recorded GPS position and air temperature, and transmitted data until 2 December 2019, where it sank due to sea-ice melting.</p> <p><strong>Buoy name and raw data:</strong></p> <p>Trident: Unit4.xlsx</p> <p><strong>Related code: </strong>The buoy data has been processed using https://github.com/mvichi/antarctic-buoys/.</p>
Helix pomatia
<p>Helicidae -<em> Helix pomatia</em></p> <p>Weinbergschnecke, Escargot de Bourgogne</p> <p>Spiez, Province Bern, Switzerland (CH)</p> <p>Height - 44.09 mm</p> <p>Diameter - 40.74 mm</p>
Figure 1 in Evaluation of the taxonomy of Helix cincta (Muller, 1774) and Helix nucula (Mousson, 1854); insights using mitochondrial DNA sequence data
Figure 1. Map showing the localities of samples used in the present study representing the morphologically defined species and the distribution of Helix cincta (dash line, light grey) and Helix nucula (continuous line, dark grey).
Supplementary Videos: The N-Terminal Helix-Turn-Helix Motif of Transcription Factors MarA and Rob Drives DNA Recognition
<p>Supplementary Movies associated with the following work: "The N-Terminal Helix-Turn-Helix Motif of Transcription Factors MarA and Rob Drives DNA Recognition", available as a preprint on chemRxiv: https://chemrxiv.org/articles/preprint/The_N-Terminal_Helix-Turn-Helix_Motif_of_Transcription_Factors_MarA_and_Rob_Drives_DNA_Recognition/12195372 </p>
Hedera helix (Araliaceae) - fruit - lateral or general close-up
Image of Hedera helix (Araliaceae) - fruit - lateral or general close-up
Hedera helix (Araliaceae) - fruit - immature
Image of Hedera helix (Araliaceae) - fruit - immature
Hedera helix (Araliaceae) - whole tree (or vine) - general
Image of Hedera helix (Araliaceae) - whole tree (or vine) - general
Hedera helix (Araliaceae) - whole tree (or vine) - general
Image of Hedera helix (Araliaceae) - whole tree (or vine) - general
Hedera helix (Araliaceae) - inflorescence - whole - unspecified
Image of Hedera helix (Araliaceae) - inflorescence - whole - unspecified
Hedera helix (Araliaceae) - bark - of a small tree or small branch
Image of Hedera helix (Araliaceae) - bark - of a small tree or small branch
Hedera helix (Araliaceae) - leaf - whole upper surface
Image of Hedera helix (Araliaceae) - leaf - whole upper surface
Hedera helix (Araliaceae) - inflorescence - frontal view of flower
Image of Hedera helix (Araliaceae) - inflorescence - frontal view of flower
Hedera helix (Araliaceae) - leaf - whole upper surface
Image of Hedera helix (Araliaceae) - leaf - whole upper surface
Hedera helix (Araliaceae) - bark - of a small tree or small branch
Image of Hedera helix (Araliaceae) - bark - of a small tree or small branch
Hedera helix (Araliaceae) - whole tree (or vine) - general
Image of Hedera helix (Araliaceae) - whole tree (or vine) - general
Hedera helix (Araliaceae) - twig - orientation of petioles
Image of Hedera helix (Araliaceae) - twig - orientation of petioles
Hedera helix (Araliaceae) - twig - orientation of petioles
Image of Hedera helix (Araliaceae) - twig - orientation of petioles
Hedera helix (Araliaceae) - leaf - showing orientation on twig
Image of Hedera helix (Araliaceae) - leaf - showing orientation on twig
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