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6,030 results for “Caving”
Fig. 12 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 12. Rhamdiopsis krugi, ca. 30.0 mm SL, adult, live specimen photographed in the nature in August, 1991, not collected; Poço Encantado cave, ca. 7 km from left margin of the rio Una, Municipality of Itaetê, State of Bahia, Brazil.
Fig. 7 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 7. Anterior vertebrae of Rhamdiopsis krugi, LIRP 5928, 33.9 mm SL, paratype. Dorsal view. AB) anterior branch of transverse process 4; AP) accessory process of vertebra 7; ll1-3) lateral line sensory branches 1 to 3; NL) neural lamina (neural arches of vertebrae 3 and 4); NS4) neural spine of vertebra 4; PB) posterior branch of transverse process 4; SB) swimbladder; TP4) transverse process 4; and TP5) transverse process 5. Arrow indicates osseous bridge joining anterior and posterior branches of transverse process 4. Scale bar = 2 mm.
Fig. 4 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 4. Cranium of Rhamdiopsis krugi, LIRP 5928, 33.9 mm SL, paratype. a) dorsal view; b) ventral view. Abbreviations: AF) anterior fontanel; AN) antorbital; AP) autopalatine; AT) antorbital tubule; BL) Baudelot's ligament; BO) basioccipital; EC) ethmoidean cartilage; EP) epioccipital; ES) extrascapula; EX) exoccipital; FR) frontal; HF) hyomandibular facet; i1-6) infraorbital sensory branches 1 to 6; LE) lateral ethmoid; ME) mesethmoid; MX) maxilla; NA) nasal; OF) optic foramen (rudiment); OS) orbitosphenoid; PA) parasphenoid; PF) posterior fontanel; PM) premaxilla; PO) prootic; po1-3) postotic sensory branches 1 to 3; PT) pterotic; PS) pterosphenoid; s1-3) supraorbital sensory branches 1 to 3; s6) supraorbital sensory branch 6 (epiphyseal branch); s7) supraorbital sensory branch 7 (postorbital branch); s8) supraorbital sensory branch 8 (parietal branch); SC) supracleithrum; SP) sphenotic; ST1-4) suborbital tubules 1 to 4; SU) supraoccipital; TF) trigeminofacial foramen; VL) ventrolateral limb of supracleithrum; VM) ventromedial limb of supracleithrum; and VO) vomer. Scale bars = 1.5 mm.
Fig. 6 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 6. Gill arches of Rhamdiopsis krugi, LIRP 5928, 33.9 mm SL, paratype. Dorsal view. Gill rakers and dorsal elements of left gill arches not shown. AN) accessory cartilaginous nodule; BB2-4) basibranchials 2 to 4; CB1-5) ceratobranchials 1 to 5; EB1-5) epibranchials 1 to 5; HB1-3) hypobranchials 1 to 3; PB3-4) pharyngobranchials 3 and 4; TP) tooth plate; and UP) uncinate process. Scale bar = 0.5 mm.
Fig. 3 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 3. Anterior portion of the body of Rhamdiopsis krugi, LIRP 5929, 37.1 mm SL, holotype, showing laterosensory canal system. a) lateral view; b) dorsal view; c) ventral view. i1) infraorbital sensory branch 1; i2) infraorbital sensory branch 2 (antorbital branch); i3-6) infraorbital sensory branches 3 to 6; ll1) lateral line sensory branch 1; ll2-11) lateral line sensory branches 2 to 11; pm1-11) preoperculomandibular sensory branches 1 to 11; po1) postotic sensory branch 1; po1+pm11) postotic-preoperculomandibular complex sensory branch (postotic sensory branch 1 + preoperculomandibular sensory branch 11); po2) postotic sensory branch 2 (pterotic or temporal branch); po3) postotic sensory branch 3; s1-3) supraorbital sensory branches 1 to 3; s6) supraorbital sensory branch 6 (epiphyseal branch); and s8) supraorbital sensory branch 8 (parietal branch). Scale bar = 3 mm.
Fig. 10 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 10. Pelvic girdle of Rhamdiopsis krugi, LIRP 5928, 33.9 mm SL, paratype. Dorsal view. BS) basipterygium; EP) external anterior process (or anterolateral arm); IP) internal anterior process (or anteromedial arm); LP) lateral process; NF) neural foramen; and PP) posterior process. Scale bar = 1 mm.
Fig. 14 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 14. Geographic distribution of Rhamdiopsis krugi. a) Eastern Brazil; b) detail of the upper rio Paraguaçu. Legends: 1) rio Paraguaçu; 2) rio São Francisco; 3) rio Una; i) Poço Encantado; ii) Lapa do Bode; and iii) Gruta Natal. Symbol (star) in map a represents the three localities.
Fig. 15 in The blind catfish from the caves of Chapada Diamantina, Bahia, Brazil (Siluriformes: Heptapteridae): description, anatomy, phylogenetic relationships, natural history, and biogeography
Fig. 15. View of the type-locality of Rhamdiopsis krugi, Poço Encantado cave (12º56'37''S 41º06'05''W), Municipality of Itaetê, Bahia, northeastern Brazil, taken in 2008. Courtesy of Adriano Gambarini.
FIGURE 7 in Pleistocene rhinoceros from Bogovina Cave: The first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
FIGURE 7. Equid and bovid dental specimens from Bogovina Cave: left lower molar of a caballoid horse NMKVRS.P12 in (A) occlusal view; indeterminate bovid right p4 NMKVRS.P14 in (B) occlusal view; indeterminate bovid left M1/M2 NMKVRS.P15 in (C) occlusal view.
FIGURE 5 in Pleistocene rhinoceros from Bogovina Cave: The first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
FIGURE 5. Fragmented upper teeth of Stephanorhinus hundsheimensis from Bogovina Cave: right M1/M2 HMP-136 in (A) occlusal and (B) lingual views; right M HMP-132 in (C) occlusal and (D) vestibular views; right M HMP-134 in (E) occlusal and (F) vestibular views; right DP4 HMP-130 in (G) occlusal and (H) vestibular views.
FIGURE 6 in Pleistocene rhinoceros from Bogovina Cave: The first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
FIGURE 6. Lower teeth of Stephanorhinus hundsheimensis from Bogovina Cave: right m1/m2 HMP-129 in (A) occlusal, (B) vestibular, (C) lingual, (D) mesial and (E) distal views; right p3/p4 HMP-407 in (F) occlusal, (G) vestibular, (H) lingual, (I) mesial and (J) distal views; right p2 HMP-139a in (K) occlusal, (L) vestibular, (M) lingual, (N) mesial, and (O) distal views.
FIGURE 4 in Pleistocene rhinoceros from Bogovina Cave: The first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
FIGURE 4. Upper molars of Stephanorhinus hundsheimensis from Bogovina Cave: right M1/M2 HMP-131 in (A) occlusal, (B) vestibular, (C) lingual, (D) mesial and (E) distal views; right M1/M2 HMP-X in (F) occlusal, (G) vestibular, (H) lingual, (I) mesial and (J) distal views; left M1/M2 HMP-135 in (K) occlusal, (L) vestibular, (M) lingual, (N) mesial, and (O) distal views.
FIGURE 3 in Pleistocene rhinoceros from Bogovina Cave: The first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
FIGURE 3. Upper premolars of Stephanorhinus hundsheimensis from Bogovina Cave: left P3/P4 NMKVRS.P13 in (A) occlusal, (B) vestibular, (C) lingual, (D) mesial and (E) distal views; right P3/P4 HMP-139b in (F) occlusal, (G) lingual, and (H) distal views.
Fig. 6 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 6. Population densities of Eigenmannia trilineata from rio da Lapa, São Domingos karst area, central Brazil, observed from dusk until night phase during two nights (April and August 2001). Asterisk indicates that no sample was recorded in this period at April 2001.
Fig. 4 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 4. Box-plots showing the means and standard deviations (Sd) of population densities data for Eigenmannia vicentespelaea along the years 1999, 2000 and 2001 (a) and between the dry seasons, independent of the years (b) BDS, beginning of dry season; MDS, middle of dry season; EDS, end of dry season.
Fig. 7 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 7. Box-plots showing means and standard deviations of pH (a) conductivity (b) and temperature (c) from the São Vicente II cave stream in the dry seasons of 1999, 2000 and 2001 (circle and asterisk represent outliers).
Fig. 3 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 3. Monthly rainfall recorded in the years of 1999, 2000 and 2001. Source: INMET, Posse municipality, Goiás State, central Brazil.
Fig. 5 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 5. Biplot resulting from Principal Component Analysis with seven variables. Dark circles represent sampling units.
Archaeological data from the 1955 excavation in Haristoy-Oxocelhaya cave by Georges Laplace, José Miguel de Barandiáran, and Pierre Boucher
<p>This table includes data from Georges Laplace's field booknotes about the excavation he carried out in 1955-1956 with José Miguel de Barandiáran and Pierre Boucher at the Haristoy-Oxocelhaya cave (Isturits and Saint-Martin-d'Arberoue, France).</p> <h2>Variables</h2> <ul> <li><em>id</em>: unique identifier attributed by the transcriber</li> <li><em>square_y</em>: label of the square on the Y axis</li> <li><em>square_x</em>: label of the square on the X axis</li> <li><em>layer</em>: layer as given in the notebook</li> <li>layer.<em>deduced</em>: layer deduced when not given in the notebook (assuming that the lines bellow a line with a layer information are about the same layer)</li> <li><em>n</em>: object's identifying number attributed by Laplace (objects are numbered by grid square)</li> <li><em>zmin</em>: minimal depth</li> <li><em>zmax</em>: maximal depth (if applicable)</li> <li><em>xmin</em>: minimal X coordinate in the square</li> <li><em>xmax</em>: maximal X coordinate in the square (if applicable)</li> <li><em>ymin</em>: minimal Y coordinate in the square</li> <li><em>ymax</em>: maximal Y coordinate in the square (if applicable)</li> <li><em>object_type</em>: remain category</li> <li><em>object_lithic-type</em>: type of lithic implement</li> <li><em>object_lithic-material</em>: lithic raw material</li> <li><em>object_anatomy</em>: anatomical part, for faunal remains</li> <li><em>object_fauna-order</em>: taxonomic order, for faunal remains</li> <li><em>object_fauna-genus</em>: taxonomic genus, for faunal remains</li> <li><em>object_decription</em>: the description given in the excavation notebook</li> <li><em>bloc_dimensions</em>: dimensions for stone blocks</li> <li><em>note_laplace</em>: note by Laplace as written in the notebook</li> <li><em>note</em>: note by the transcriber</li> </ul> <h2>About stone blocks dimension</h2> <p>Stone blocks are written as “B10.20.20” or as “B10”. This information was recorded in the “bloc_dimensions” columns and the “object_type” column was filled with a “bloc” or “bloc stalagmité” value.</p> <ul> <li>About the first form, the three numerical values are interpreted as the dimensions of the block in centimeters and are noted with separating dots in the “bloc_dimensions” column. E.g. “B10.20.20” is recorded as “10.20.20”.</li> <li>The second form is interpreted as referring to cubic blocs, only one value is useful. This value was copied in the “bloc_dimensions” column. E.g. “B10” is recorded “ 10”. The two other lengths can be deduced when processing the dataset.</li> </ul> <h2>Line multiplication</h2> <p>Generally speaking, one line in the notebook corresponds to one object. This is sometimes not the case, when two objects are noted with a “+” sign (e.g. “B10 + fo”) or when a multiplier is applied to the description of an object (e.g. “7 B10”, for seven blocks of size 10). <br>In this case, a line in the table was created for each object and, if the line contained an object number, this number was copied in each new line in the “n” column.</p> <p> </p> <p> </p>
Channel Measurements from Sitarjevec Mine for Propagation Modelling in a Cave Environment
<p>The dataset contains data collected during a measurement campaign using the <a href="https://www.qorvo.com/products/p/DW1000">DecaWave1000 </a>UWB pulse radio module in the <a href="https://rudniksitarjevec.si/en">Sitarjevec</a> mine in Litija, Slovenia. </p> <p>The measurements include complex channel impulse responses (CIRs) collected for 40 predefined positions with the following system parameters:</p> <ul> <li><strong>CONF1:</strong> Channel 4, DataRate 110, PRFR 16, PreambleLenght 4096, PreambleCode 7;</li> <li><strong>CONF2: </strong>Channel 4, DataRate 110, PRFR 64, PreambleLenght 4096, PreambleCode 17;</li> <li><strong>CONF3: </strong>Channel 7, DataRate 110, PRFR 16, PreambleLenght 4096, PreambleCode 7;</li> <li><strong>CONF4: </strong>Channel 7, DataRate 110, PRFR 64, PreambleLenght 4096, PreambleCode 17.</li> </ul> <p><strong>Measurement setup</strong></p> <p>Measurements were performed using the DecaWave1000 UWB pulse radio module in Segment 1 of the mine. Four points (Point A, Point B, Point C, and Point D) were selected for defining the positions of the nodes as shown in Figure 1. Point A denotes the main entrance, the entrance to the measurement segment is represented by Point B, and the beginning and the end of the measurement environment are denoted by Point C, and Point D, respectively. The length of the mine between Point A and Point D is approximately 60 m. </p> <p>The nodes were mounted on stands 1.4 m above the ground, which is not flat. They were placed on a straight line connecting Point C and Point D. The ANCHOR node was positioned in Point C, and the TAG node was moved along the reference line with a step of 1 m up to a maximum distance of 40 m. The nodes were always positioned so the antenna was centred above the reference line. </p> <p><strong>Folder structure</strong></p> <p>The measurements collected for each of the TAG node positions are stored in the corresponding folder. The folders are named m_n, with n=1, ..., 40 corresponding to the TAG's distance to the ANCHOR. Each folder contains four CSV files holding the CIR data measured using the four pre-defined configurations of the UWB system. Each CSV file stores CIRs of approximately 200 repeated measurements as separate records. The CIRs hold complex values of the 156 strongest multipath components corresponding to the taps in the DecaWave1000 accumulator, each of which represents a 1 ns sample interval. </p> <p><strong>Authors</strong></p> <p>Teodora Kocevska, Aleš Simončič, Grega Morano, Tomaž Javornik, and Andrej Hrovat</p> <p>Department of Communication Systems</p> <p>Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia</p> <p>teodora.kocevska@ijs.si</p>
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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