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34 results for “central canal”
Hohokam canals as multi-use facilities: Pre-historic canal system in the central Arizona-Phoenix metropolitan area
This is the digitized version of a map of the Hohokam canal system in what is now the Phoenix metropolitan area. It is based on the thesis research by J. B. Howard (Howard, J. (1990). Paleohydraulics : techniques for modeling the operation and growth of prehistoric canal systems. Thesis (M.A.)--Arizona State University, 1990). The original paper map is based on previous archaeological data, overlayed onto USGS 7.5 minute quadrangle maps to recreate the canal pattern.
Dataset for the manuscript "ExSTED microscopy reveals contrasting functions of dopamine and somatostatin CSF-c neurons along the central canal"
<p>Description: Dataset that supports the expansion-STED and light sheet microscopy methods in spinal cord and support the findings in the manuscript: ExSTED microscopy reveals contrasting functions of dopamine and somatostatin CSF-c neurons along the central canal (Elham Jalalvand, Jonatan Alvelid, Giovanna Coceano, Steven Edwards, Brita Robertson, Sten Grillner, Ilaria Testa).</p> <p>The software used to open the files and perform the analysis: Imspector v0.10_rev8575 and ImageJ 1.52i.</p> <p>The preprint of the manuscript can be found here: https://doi.org/10.1101/2021.08.17.456595</p>
Text-fig. 7. Progyrolepis heyleri POPLIN, 1999. a, b: whitened photograph and drawing of the skull roof in dorsal view, GMC 56, scale bars 5 mm; c, d: drawing and whitened photograph of the parasphenoid in dorsal view, GMC 84, scale bars 5 mm. Abbreviations: Dsph – dermosphenotic, Dpt – dermopterotic, Fr – frontal, infs – interfrontal suture, ioc – infraorbital sensory canal, Pa – parietal, pl – parietal pit line, soc – supraorbital sensory canal. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 7. Progyrolepis heyleri POPLIN, 1999. a, b: whitened photograph and drawing of the skull roof in dorsal view, GMC 56, scale bars 5 mm; c, d: drawing and whitened photograph of the parasphenoid in dorsal view, GMC 84, scale bars 5 mm. Abbreviations: Dsph – dermosphenotic, Dpt – dermopterotic, Fr – frontal, infs – interfrontal suture, ioc – infraorbital sensory canal, Pa – parietal, pl – parietal pit line, soc – supraorbital sensory canal.
Text-fig. 3. Briveichthys chantepieorum gen. et sp. nov. a, b: drawing and photograph of the jaws, jugal, medial gular and first lepidotrichia of the pectoral fin, GMC 126, whitened, scale bar 5 mm. Abbreviations: Aup – autopalatinum, De – dentalosplenial, ff – fringing fulcra, Gm – medial gular, gpl – gular pit line, ioc – infraorbital sensory canal, Ju – jugal, lep – lepidotrichia, mc – pores of the mandibular sensory canal, Mx – maxilla. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 3. Briveichthys chantepieorum gen. et sp. nov. a, b: drawing and photograph of the jaws, jugal, medial gular and first lepidotrichia of the pectoral fin, GMC 126, whitened, scale bar 5 mm. Abbreviations: Aup – autopalatinum, De – dentalosplenial, ff – fringing fulcra, Gm – medial gular, gpl – gular pit line, ioc – infraorbital sensory canal, Ju – jugal, lep – lepidotrichia, mc – pores of the mandibular sensory canal, Mx – maxilla.
Text-fig. 2. Briveichthys chantepieorum gen. et sp. nov. a, b: whitened photograph and drawing of the skull, GMC 15, scale bars 5 mm; c: anterior part of the left and right frontal in dorsal view, a conspicuous concave anterior edge of the bones is demonstrated, GMC 18, whitened, scale bar 5 mm. Abbreviations: Clei – cleithrum, De – dentalosplenial, Dpt – dermopterotic, Dsph – dermosphenotic, Ext? – extrascapular?, Fr – frontal, Gul – lateral gular, Hy – hyomandibula, Mx – maxilla, Na – nasal, Pa – parietal, Pop – preoperculum, ppl – parietal pit lines, Pt – posttemporal, Rbr – branchiostegal rays, Scl – supracleithrum, soc – supraorbital canal, Sop – suboperculum, sr – sclerotic ring. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 2. Briveichthys chantepieorum gen. et sp. nov. a, b: whitened photograph and drawing of the skull, GMC 15, scale bars 5 mm; c: anterior part of the left and right frontal in dorsal view, a conspicuous concave anterior edge of the bones is demonstrated, GMC 18, whitened, scale bar 5 mm. Abbreviations: Clei – cleithrum, De – dentalosplenial, Dpt – dermopterotic, Dsph – dermosphenotic, Ext? – extrascapular?, Fr – frontal, Gul – lateral gular, Hy – hyomandibula, Mx – maxilla, Na – nasal, Pa – parietal, Pop – preoperculum, ppl – parietal pit lines, Pt – posttemporal, Rbr – branchiostegal rays, Scl – supracleithrum, soc – supraorbital canal, Sop – suboperculum, sr – sclerotic ring.
Text-fig. 8. Progyrolepis heyleri POPLIN, 1999. a: maxilla and lower jaw of juvenile specimen in lateral view, GMC 43, whitened, scale bar 5 mm; b: maxilla and lower jaw of juvenile specimen, imprint of the maxillary medial face with a distinctive horizontal lamina, lower jaw in lateral view, GMC 83, whitened, scale bar 5 mm; c: haemal arch of the axial skeleton and fragment of a strong undivided lepidotrichium, GMC 25, whitened, scale bar 5 mm; d: drawing of the haemal arch, GMC 25, scale bar 5 mm; e: jugal in medial view with the infraorbital sensory canal and imprint of the sculpture on the lateral face of the bone, GMC 7, whitened, scale bar 5 mm. Abbreviations: ha – haemal arch, hl – horizontal lamina, hs – haemal spine, ioc – infraorbital sensory canal, lep – lepidotrichium. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 8. Progyrolepis heyleri POPLIN, 1999. a: maxilla and lower jaw of juvenile specimen in lateral view, GMC 43, whitened, scale bar 5 mm; b: maxilla and lower jaw of juvenile specimen, imprint of the maxillary medial face with a distinctive horizontal lamina, lower jaw in lateral view, GMC 83, whitened, scale bar 5 mm; c: haemal arch of the axial skeleton and fragment of a strong undivided lepidotrichium, GMC 25, whitened, scale bar 5 mm; d: drawing of the haemal arch, GMC 25, scale bar 5 mm; e: jugal in medial view with the infraorbital sensory canal and imprint of the sculpture on the lateral face of the bone, GMC 7, whitened, scale bar 5 mm. Abbreviations: ha – haemal arch, hl – horizontal lamina, hs – haemal spine, ioc – infraorbital sensory canal, lep – lepidotrichium.
Text-fig. 6. Briveichthys chantepieorum gen. et sp. nov. a: reconstruction of the skull roof and the nasal in dorsal view, scale bar 5 mm; b: reconstruction of the skull in lateral view (parts of the skull which are not clearly retained are in grey colour), scale bar 5 mm. Abbreviations: ana – anterior nasal opening, Aop – antoperculum, De – dentalosplenial, Dpt – dermopterotic, Dsph – dermosphenotic, Fr – frontal, Gul – lateral gular, ioc – infraorbital canal, Ju – jugal, Mx – maxilla, Na – nasal, Op – operculum, Pa – parietal, pl – pit line, Pop – preoperculum, Pt – posttemporal, Rbr – branchiostegal ray, Scl – supracleithrum, soc – supraorbital canal, Sop – suboperculum, sr – sclerotical ring. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 6. Briveichthys chantepieorum gen. et sp. nov. a: reconstruction of the skull roof and the nasal in dorsal view, scale bar 5 mm; b: reconstruction of the skull in lateral view (parts of the skull which are not clearly retained are in grey colour), scale bar 5 mm. Abbreviations: ana – anterior nasal opening, Aop – antoperculum, De – dentalosplenial, Dpt – dermopterotic, Dsph – dermosphenotic, Fr – frontal, Gul – lateral gular, ioc – infraorbital canal, Ju – jugal, Mx – maxilla, Na – nasal, Op – operculum, Pa – parietal, pl – pit line, Pop – preoperculum, Pt – posttemporal, Rbr – branchiostegal ray, Scl – supracleithrum, soc – supraorbital canal, Sop – suboperculum, sr – sclerotical ring.
Text-fig. 4. Briveichthys chantepieorum gen. et sp. nov. a, b: photograph and drawing of the parasphenoid in dorsal view, GMC 15, whitened, scale bars 5 mm; c: maxillary plate in medial view with horizontal lamina along the ventral edge of the bone, segment of the lower jaw with assembly of large slender teeth of the inner row and coronoids with small teeth, GMC 15, whitened, scale bar 5 mm; d: detail of the sculpture on the maxilla and dentalosplenial, GMC 126, whitened, scale bar 5 mm; e: detail of the teeth of the inner and outer row and coronoids on the lower jaw, the frame delineates the area illustrated in (f) at higher magnification, GMC 15, scale bar 2 mm; f: microsculpture formed by elliptical proximo-distally elongated protuberances on the large conical teeth, GMC 15, scale bar 100 µm; g: small fringing fulcra tightly attached to the anterior edge of a lepidotrichium, individual fulcral scales are indicated by arrows, GMC 18, scale bar 2 mm. Abbreviation: bhf – bucco-hypophysial foramen, Cor – coronoids, cp – corpus parasphenoidis, De – dentalosplenial, hl – horizontal lamina, mc – pores of the mandibular sensory canal, Mx – maxilla, paa – processus ascendens anterior, pap – processus ascendens posterior. in New Actinopterygians From The Permian Of The Brive Basin, And The Ichthyofaunas Of The French Massif Central
Text-fig. 4. Briveichthys chantepieorum gen. et sp. nov. a, b: photograph and drawing of the parasphenoid in dorsal view, GMC 15, whitened, scale bars 5 mm; c: maxillary plate in medial view with horizontal lamina along the ventral edge of the bone, segment of the lower jaw with assembly of large slender teeth of the inner row and coronoids with small teeth, GMC 15, whitened, scale bar 5 mm; d: detail of the sculpture on the maxilla and dentalosplenial, GMC 126, whitened, scale bar 5 mm; e: detail of the teeth of the inner and outer row and coronoids on the lower jaw, the frame delineates the area illustrated in (f) at higher magnification, GMC 15, scale bar 2 mm; f: microsculpture formed by elliptical proximo-distally elongated protuberances on the large conical teeth, GMC 15, scale bar 100 µm; g: small fringing fulcra tightly attached to the anterior edge of a lepidotrichium, individual fulcral scales are indicated by arrows, GMC 18, scale bar 2 mm. Abbreviation: bhf – bucco-hypophysial foramen, Cor – coronoids, cp – corpus parasphenoidis, De – dentalosplenial, hl – horizontal lamina, mc – pores of the mandibular sensory canal, Mx – maxilla, paa – processus ascendens anterior, pap – processus ascendens posterior.
Text-fig. Fig. 9. Cucurbitaceae 1–4. Cucurbitaciphyllum lobatum (KNOWLTON) comb. nov. Specimens from Shirley Canal, Montana, USGS loc. 8519. 1. Trilobate leaf, with rounded lobal sinues, and entire to serrated margin. USNM 313167. 2. Leaf with pronounced secondary lobes and cordate base, USNM 313179. 3. Detail of central lobe from fig. 1. 4. Higher magnification, showing abundant trichome impressions. Scales = 3 cm in 1–3; 3 mm in 4. in Revisions To Roland Brown'S North American Paleocene Flora
Text-fig. Fig. 9. Cucurbitaceae 1–4. Cucurbitaciphyllum lobatum (KNOWLTON) comb. nov. Specimens from Shirley Canal, Montana, USGS loc. 8519. 1. Trilobate leaf, with rounded lobal sinues, and entire to serrated margin. USNM 313167. 2. Leaf with pronounced secondary lobes and cordate base, USNM 313179. 3. Detail of central lobe from fig. 1. 4. Higher magnification, showing abundant trichome impressions. Scales = 3 cm in 1–3; 3 mm in 4.
Figure 5 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 5. The percentage of larval instars of Amphipsyche meridiana Ulmer 1902 at the sampling site was calculated using the distribution of head capsule width for each month.
Figure 8 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 8. Food item in Amphipsyche meridiana's digestive system under a bright field microscope (magnification x40).
Figure 7 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 7. Food item proportions in the gut contents of the larval instar of Amphipsyche meridiana in each month from the irrigation canal. The gut content of A. meridiana larvae (n = 120) from the study area. The presence (%) represents the percentage of larvae with guts containing this type of material.
Figure 4 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 4. The frequency distribution of larval instars of Amphipsyche meridiana Ulmer 1902 based on head capsule width (n = 12,513) from December 2021 to November 2022.
Study of Epidural Steroid Injection (ESI) Versus Minimally Invasive Lumbar Decompression (Mild®) in Patients With Symptomatic Lumbar Central Canal Stenosis
ClinicalTrials.gov study NCT00995371. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Origin and role of the cerebrospinal fluid bidirectional flow in the central canal
<p>The circulation of cerebrospinal fluid (CSF) plays pivotal roles for body axis formation and brain development. During embryogenesis, CSF is rich in particles and proteins and flows bidirectionally in the central canal. The origins of bidirectional flow and its impact on development are unknown. Experiments combined with modeling and simulations demonstrate that the bidirectionality of CSF flow is generated locally by caudally-polarized motile cilia confined to the ventral wall of the central canal. Such active bidirectional flow of the CSF accelerates the long-range transport of particles propagating rostrally and caudally. In addition, spontaneous muscle contractions increase local CSF flow and consequently enhance long-range transport of extracellular lipidic particles. Focal ablation of the channel connecting brain ventricles to the central canal reduces embryo length, indicating that long-range transport contributes to embryonic growth. Our study also demonstrates that at this early stage, motile cilia ensure the proper formation of the central canal.</p>
Data from: Origin and role of the cerebrospinal fluid bidirectional flow in the central canal
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Figure 9 from: Villegas-Luján R, Plowes R, Gilbert LE, Rodríguez JC, Canales-del-Castillo R, Gallegos-Morales G, España-Luna MP, Fernández-Triana J, Sanchez-Peña SR (2024) Redescription of Apanteles mimoristae (Hymenoptera, Braconidae), a parasitoid of the native pyralid cactus moth Melitara cf. nephelepasa in central Mexico. Journal of Hymenoptera Research 97: 207-228. https://doi.org/10.3897/jhr.97.117514
Figure 9 Turquoise-colored larvae of Apanteles mimoristae Muesebeck (Braconidae: Microgastrinae) next to a dead caterpillar of Melitara cf. nephelepasa (Pyralidae) (zebra worm), inside an opened Opuntia ficus-indica (Cactaceae) pad. The blue-turquoise color of the wasp larvae indicates feeding on caterpillar hemolymph, which has a similar color. The arrow indicates the caterpillar's characteristic whitish stripes.
Figure 8 from: Villegas-Luján R, Plowes R, Gilbert LE, Rodríguez JC, Canales-del-Castillo R, Gallegos-Morales G, España-Luna MP, Fernández-Triana J, Sanchez-Peña SR (2024) Redescription of Apanteles mimoristae (Hymenoptera, Braconidae), a parasitoid of the native pyralid cactus moth Melitara cf. nephelepasa in central Mexico. Journal of Hymenoptera Research 97: 207-228. https://doi.org/10.3897/jhr.97.117514
Figure 8 Maximum likelihood (1000 reps) tree for Apanteles mimoristae and related species. Arrows indicate Apanteles mimoristae, A. esthercentenoae, A. alexanderi and A. opuntiarum.
Figure 7 from: Villegas-Luján R, Plowes R, Gilbert LE, Rodríguez JC, Canales-del-Castillo R, Gallegos-Morales G, España-Luna MP, Fernández-Triana J, Sanchez-Peña SR (2024) Redescription of Apanteles mimoristae (Hymenoptera, Braconidae), a parasitoid of the native pyralid cactus moth Melitara cf. nephelepasa in central Mexico. Journal of Hymenoptera Research 97: 207-228. https://doi.org/10.3897/jhr.97.117514
Figure 7 Bayesian tree for Apanteles mimoristae and related species. Arrows indicate Apanteles mimoristae, A. esthercentenoae, A. alexanderi and A. opuntiarum.
Figure 5 from: Villegas-Luján R, Plowes R, Gilbert LE, Rodríguez JC, Canales-del-Castillo R, Gallegos-Morales G, España-Luna MP, Fernández-Triana J, Sanchez-Peña SR (2024) Redescription of Apanteles mimoristae (Hymenoptera, Braconidae), a parasitoid of the native pyralid cactus moth Melitara cf. nephelepasa in central Mexico. Journal of Hymenoptera Research 97: 207-228. https://doi.org/10.3897/jhr.97.117514
Figure 5 Apanteles mimoristae Muesebeck, female A T1, dorsal view, rough surface and posterior margin with two latersal depressions B metasoma dorsal view C metasoma lateral view, lateral setae on second and third tergite D ovipositor sheaths. Arrows in A–C indicate smooth surface of T2.
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