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23,351 results for “Comparative”
A comparative study of red brick powder and lime as soft soil stabilizer (Dataset)
<p>This data is the result of laboratory CBR testing in soaked and unsoaked conditions with or without additional stabilization</p>
Comparative transcriptomics of tropical woody plants supports fast and furious strategy along the leaf economics spectrum in lianas
<p>Lianas, climbing woody plants, influence the structure and function of tropical forests. Climbing traits have evolved multiple times, including ancestral groups such as gymnosperms and pteridophytes, but the genetic basis of the liana strategy is largely unknown. Here, we use a comparative transcriptomic approach for 47 tropical plant species, including ten lianas of diverse taxonomic origins, to identify genes that are consistently expressed or downregulated only in lianas. Our comparative analysis of full-length transcripts enabled the identification of a core interactomic network common to lianas. Sets of transcripts identified from our analysis reveal features related to functional traits pertinent to leaf economics spectrum in lianas, including upregulation of genes controlling epidermal cuticular properties, cell wall remodeling, carbon concentrating mechanism, cell cycle progression, DNA repair and a large suit of downregulated transcription factors and enzymes involved in ABA-mediated stress response as well as lignin and suberin synthesis. Altogether, these genes are known to be significant in shaping plant morphologies through responses such as gravitropism, phyllotaxy and shade avoidance.</p>
Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion
<p>Animals are known to exhibit different walking behaviors in hilly habitats. For instance, cats, rats, squirrels, tree frogs, desert iguana, stick insects and desert ants were observed to lower their body height in traversing slopes, whereas mound-dwelling iguanas and wood ants tend to maintain constant walking kinematics regardless of the slope.</p> <p></p><p>This paper aims to understand and classify these distinct behaviors into two different strategies against toppling for climbing animals by looking into two factors, (i) the torque of the center of gravity (CoG) with respect to the critical tipping axis, and (ii) the torques of the legs, which have the potential to counterbalance the CoG-torque. Our comparative locomotion analysis on level locomotion and inclined locomotion exhibited that primarily only one of the proposed two strategies was chosen for each of our sample species, despite the fact that a combined strategy could have reduced the animal's risk to topple over even more. We found that desert ants of Cataglyphis fortis maintained their upright posture primarily through the adjustment of their CoG-torque (geometric strategy), and wood ants of the Formica rufa species group controlled their posture primarily by exerting leg-torques (adhesive strategy). We further provide hints that the geometric strategy employed by Cataglyphis could increase the risk for slipping on slopes since the leg-impulse substrate angle of Cataglyphis' hind legs were lower compared to Formica's. In contrast, the adhesion strategy employed by Formica's front legs not only decreased the risk for toppling. It also explained the steeper leg-impulse substrate angle of Formica's hind legs which should relate to more bending of the tarsal structures and therefore to more microscopic contact points potentially reducing the risk for hind leg slipping.</p><p></p>
Data from: Measuring nestedness: a comparative study of the performance of different metrics
Nullnest <p>The <code>nullnest</code> repository provides a set of programs developed for constructing a <strong>null model</strong> of bipartite networks which constraints the degree sequences -on average-, along with the measurement of the degree of <strong>nestedness</strong> of bipartite networks using a large variety of metrics allowing for the comparison of this value against the null expectation. The whole repository is documented and maintained at: <span><a href="https://github.com/cclaualc/nullnest">https://github.com/cclaualc/nullnest</a>.</span></p> <p>The package is divided into two main blocks. On the one hand, we provide a program to compute the null model, for any bipartite network introduced by the user, which keeps the original degree sequence constant on average while maximizing the entropy of the null ensemble. We also give the ready-to-use results of the null model for an important number of real networks available online. On the other hand, the package contains the programs to measure the degree of nestedness of any network, measuring as well the first two moments of its null distribution, either by using analytical expressions or by numerically sampling the null ensemble.</p> <p>For more information on the functioning, modificable options, implementation and references of this repository visit the <a href="https://github.com/cclaualc/nullnest">github link</a>. When using these programs please acknowledge the authors.</p>
Figures 1–6 in Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) types of the Museum of Comparative Zoology (MCZ), with a brief history of the Coleoptera collection
Figures 1–6. Six species of Onciderini. Fig. 1. Cacostola variegata Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 2. Charoides antennata antennata Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 3. Cylicasta nysa Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 4. Hesycha crucifera Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 5. Hesychotypa archippa Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 6. Hesychotypa subfasciata Dillon and Dillon (a, dorsal habitus; b, labels).
Figures 12–17 in Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) types of the Museum of Comparative Zoology (MCZ), with a brief history of the Coleoptera collection
Figures 12–17. Six species of Onciderini. Fig. 12. Oncideres poeta Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 13. Oncideres pustulata LeConte (a, dorsal habitus; b, labels). Fig. 14. Oncideres putator brevifasciata Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 15. Oncideres saga colombiana Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 16. Oncideres sobrina Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 17. Peritrox perbra Dillon and Dillon (a, dorsal habitus; b, labels).
Figures 7–11 in Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) types of the Museum of Comparative Zoology (MCZ), with a brief history of the Coleoptera collection
Figures 7–11. Five species of Onciderini. Fig. 7. Hypsioma attalia Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 8. Hypsioma opalina Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 9. Oncideres lyside Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 10. Lochmaeocles basalis Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 11. Oncideres ophthalmalis Dillon and Dillon (a, dorsal habitus; b, labels).
Figures 18–19 in Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) types of the Museum of Comparative Zoology (MCZ), with a brief history of the Coleoptera collection
Figures 18–19. Two species of Onciderini. Fig. 18. Trestonia confusa Dillon and Dillon (a, dorsal habitus; b, labels). Fig. 19. Tybalmia pixe Dillon and Dillon (a, dorsal habitus; b, labels).
Figures 247–252. Alimentary canal and reproductive organs. 247 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 247–252. Alimentary canal and reproductive organs. 247) ventriculus. 248) pyloric valve. 249) colon. 250) rectum. 251–252. Reproductive organs. 251) female. 252) male.
Figures 242–246. Alimentary canal, Enoclerus quadrisignatus. 242 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 242–246. Alimentary canal, Enoclerus quadrisignatus. 242) alimentary canal. 243) pharynx. 244) esophagus. 245) proventriculus. 246) stomodaeal valve.
Figures 231–241. Reproductive organs. 231–234. Pelonium spp. a-c. 231 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 231–241. Reproductive organs. 231–234. Pelonium spp. a-c. 231) sp. a, male. 232) sp. a, female. 233) sp. b, male. 234) sp. c, male. 235. Tarsostenodes leucogramma, male. 236–237. Females. 236) Blackburniella hilaris. 237) Parapylus sedlaceki. 238–239. Tarsostenus carus. 238) female. 239) male. 240) Tarsotenodes guttulus, female. 241) Dolichopsis haplocnemodes, female.
Figures 223–230. Reproductive organs. 223. Pelonium posticum, male. 224–225. Pelonium quadriplagiatum. 224 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 223–230. Reproductive organs. 223. Pelonium posticum, male. 224–225. Pelonium quadriplagiatum. 224) male. 225) female. 226–227. Pelonium semirufum. 226) male. 227) female. 228–230. Pelonium viridipenne. 228) female. 229) male. 230) male.
Figures 216–222 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 216–222. Reproductive organs, ventral nerve cord, and brain. 216) Pelonium leucophaeum, reproductive organs, female. 217) Pelonium lituratum, reproductive organs, female. 218) Pelonium nigroclavatum, reproductive organs, female. 219) Pelonium lituratum, ventral nerve cord and brain. 220–221. Pelonium peninsulare. 220) reproductive organs, male. 221) reproductive organs, female. 222) Pelonium placidum, reproductive organs, female.
Figures 195–200. Reproductive organs. 195. Tillus notatus, female. 196–197. Males. 196 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 195–200. Reproductive organs. 195. Tillus notatus, female. 196–197. Males. 196) Tillus sp. a. 197) Tillus sp. b. 198–200. Tilloidea unifasciata. 198) male. 199) female. 200) bursal plate.
Figures 201–207. Reproductive organs. 201–202. Iontoclerus sericeus. 201 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 201–207. Reproductive organs. 201–202. Iontoclerus sericeus. 201) male. 202) female. 203–204. Chariessa dichroa. 203) female. 204) male. 205–206. Chariessa pilosa. 205) male. 206) female. 207) Chariessa vestita, male.
Figures 185–194. Reproductive organs and alimentary canals. 185 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 185–194. Reproductive organs and alimentary canals. 185. Monophylla californica, reproductive organs, female.. 186–189. Onichotillus vittatus. 186) alimentary canal. 187) reproductive organs, male. 188) reproductive organs, female. 189) bursal plate. 190) Orthocladiscus dispar, reproductive organs, male. 191) Pallenis sp. reproductive organs, female. 192–194. Tillus elongatus. 192) reproductive organs, male. 193) reproductive organs, female. 194) alimentary canal.
Figures 171–184. Reproductive organs. 171–172. Cymatodera serena. 171 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 171–184. Reproductive organs. 171–172. Cymatodera serena. 171) female. 172) bursal plate. 173) Cymatodera tutoides, male. 174–176. Cymatodera undulata. 174) female. 175) male. 176) bursal plate. 177) Monophylla terminata, female. 178) Lecontella cancellata, male. 179) Lecontella gnara, female. 180–81. Bursal plates. 180) Monophylla terminata. 181) Lecontella cancellata. 182–183. Males. 182) Monophylla californica. 183) Monophylla terminate. 184) Lecontella cancellata.
Figures 163–170. Reproductive organs. 163–164. Cymatodera horni. 163 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 163–170. Reproductive organs. 163–164. Cymatodera horni. 163) male. 164) female. 165) Cymatodera inornata, male. 166–168. Cymatodera latefasciata. 166) male. 167) female. 168) bursal plate. 169) Cymatodera oblita, female. 170) Cymatodera tricolor, female.
Figures 208–215. Reproductive organs. 208 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 208–215. Reproductive organs. 208) Pelonium alcicorne, female. 209) Pelonium amabile. male. 210–211. Pelonium auripenne. 210) male. 211) female. 212) Pelonium badeni, male. 213–214. Pelonium fasciculatum. 213) male. 214) female. 215) Pelonium disconotatum, male.
Figures 147–162. Reproductive organs. 147–148. Cymatodera aegra. 147 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 147–162. Reproductive organs. 147–148. Cymatodera aegra. 147) female. 148) bursal plate. 149–151. Cymatodera undata. 149) male. 150) bursal plate. 151) female. 152–154. Cymatodera antennata. 152) bursal plate. 153) female. 154) male. 155–157. Cymatodera dietrichi. 155) male. 156) bursal plate. 157) female. 158) Cymatodera bicolor female.159–160. Cymatodera californica. 159) bursal plate. 160) female. 161–162. Cymatodera fuchsii. 161) bursal plate. 162) female.
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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.