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Fig. 37 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 37. Skeletal labyrinth structure in other elasmobranchs. A–C, extant Notorynchus, A, lateral; B, dorsal; C, medial views; D, Cladodoides, lateral view. After Maisey, 2005. No scale.

Fig. 13 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 13. Lateral view of the Tribodus braincase, anterior to the right (surface rendering). No scale.

Fig. 14 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 14. Medial view of the Tribodus braincase sliced through the sagittal plane, anterior to the left

Fig. 12 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 12. Anterior (A) and posterior (B) views of the Tribodus braincase (surface renderings). No scale.

Fig. 10 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 10. Dorsal view of the Tribodus limae braincase, AMNH FF 13958, anterior at top (surface rendering). No scale.

Fig. 8 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 8. Transverse CT scan slices through the Tribodus limae braincase. Otic region. A, slice 257, at the level of the hypophysis and facial nerve; B, slice 270, showing the pituitary vein canal and the anterior ramus of the octaval nerve; C, slice 285, showing the hypophyseal duct and internal carotids; D, slice 290, showing the posterior ramus of the octaval nerve and the exit of the orbital arteries from the braincase; E, slice 298, at the level of the hypophyseal foramen; F, slice 303, showing the exit of the efferent hyoidean arteries from the braincase; G, slice 307, showing the canals for the lateral dorsal aortae converging to form a single chamber medial to the efferent hyoidean foramina; H, slice 313, showing the lateral dorsal aortae diverging posteriorly. No scale.

Fig. 3 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 3. Braincase of Tribodus limae, AMNH FF 13958. A, ventral view; B, dorsal view; C, lateral view. Scale bar is 2 cm.

Fig. 6 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 6. Transverse CT scan slices of the Tribodus limae braincase, AMNH 13958. Ethmoidal region. A, slice 57, through the olfactory chamber and precerebral fontanelle; B, slice 72, through the precerebral fontanelle showing the ventral exit of the orbitonasal canal; C, slice 83, through the precerebral fontanelle showing the orbitonasal canal traveling through the cartilage; D, E, F, slices 87, 89, and 94, respectively, through the precerebral fontanelle showing the course of the profundus nerve and orbitonasal canal; G, slice 100, at the level of the anterior cerebral canal; H, slice 159, through the anterior of the orbit at the level of the trochlear nerve and median ventral basicranial process. No scale.

Fig. 9 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 9. Transverse CT scan slices through the Tribodus limae braincase. Occipital region. A, slice 334, at the level of the preampullary canals and perilymphatic foramina; B, slice 369, at the level of the posterior ampullae and glossopharyngeal canal; C, slice 395, at the level of the vagus nerve; D, slice 400, at the level where the vagus canal exits into the glossopharyngeal foramen; E, slice 418, showing canals for the occipital arteries and spino-occipital nerves; F, slice 423, at the level of the occipital cotylus. No scale.

Fig. 1 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 1. Phylogenetic relationship of hybodonts (represented here by Tribodus and Egertonodus) to other representative fossil and extant chondrichthyans. Based on Maisey (1989); Coates and Sequeira (2001); Ginter (2005); Gaudin (1991); and Young (1982).

Fig. 2 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 2. Reproduction of original illustrations of the Tribodus limae braincase, modified from Brito (1992), in A, dorsal; B, ventral, and C, lateral views. Abbreviations (translated from the original French): ald, foramina for lateral dorsal aortae; a.orb, orbital artery; cap.ot, otic capsule; c.j, jugular canal; c.occ, occipital cotylus; csca, anterior semicircular canal; csce, external semicircular canal; cscp, posterior semicircular canal; f.end, endolymphatic (parietal) fossa; f.m, foramen magnum; f.p, precerebral fontanelle; p.art, articular process for palatoquadrate; p.ot.lat, lateral otic process; ppo, postorbital process; q.int, internasal keel; V.opht, superficial ophthalmic ramus of nerve V; V + VII, foramen for main branch of trigeminal and facial nerves; VII hym, foramen for hyomandibular branch of facial nerve; IX + X, glossopharyngeal-vagus foramen. Not to scale.

opencc-by-4.0Sep 2022View details →

Deciphering interactions between the marine dinoflagellate Prorocentrum lima and the fungus Aspergillus pseudoglaucus

The comprehension of microbial interactions is one of the key challenges in marine microbial ecology. This study focused on exploring chemical interactions between the toxic dinoflagellate Prorocentrum lima and a filamentous fungal species, Aspergillus pseudoglaucus, which has been isolated from the microalgal culture. Such interspecies interactions are expected to occur even though they were rarely studied. Here, a co-culture system was designed in a dedicated microscale marine-like condition. This system allowed to explore microalgal-fungal physical and metabolic interactions in presence and absence of the bacterial consortium. Microscopic observation showed an unusual physical contact between the fungal mycelium and dinoflagellate cells. To delineate specialized metabolome alterations during microalgal-fungal co-culture metabolomes were monitored by high-performance liquid chromatography coupled to high-resolution mass spectrometry. In-depth multivariate statistical analysis using dedicated approaches highlighted (1) the metabolic alterations associated with microalgal-fungal co-culture, and (2) the impact of associated bacteria in microalgal metabolome response to fungal interaction. Unfortunately, only a very low number of highlighted features were fully characterised. However, an up-regulation of the dinoflagellate toxins okadaic acid and dinophysistoxin 1 was observed during co-culture in supernatants. Such results highlight the importance to consider microalgal-fungal interactions in the study of parameters regulating toxin production.

opencc-by-4.0Nov 2022View details →

Electronic invoicing: an analysis of its implementation in micro and small businesses in Lima, Peru.

he implementation of electronic taxation systems helps every company to be able to control, verify and simplify its tax operations. It allows them to manage all their obligations in a faster and more efficient way. To find out, from the accountants' perspective, what attitudes, practices and compliance with tax obligations are being carried out as a result of the implementation of electronic invoicing. Likewise, to note the benefits it has brought to MYPES during COVID-19 in Peru. Applied research with a quantitative and non-experimental approach. The sample consisted of 384 accountants who manage taxation in their respective companies in Metropolitan Lima, to whom a questionnaire was applied as a data collection instrument. The sample indicates that the use of an electronic emission system helps to combat tax evasion (9.6%), cumbersome tax audits (38.8%), informality (9.4), falsification of payment vouchers (8.9), loss and deterioration of payment vouchers (9.1%), informality (8.3%). They also consider that the use of this type of system has facilitated processes (96.6%), reduced costs (96.4%), reduced paper (96.9%) and made administrative and accounting operations much faster (97.4%). It is evident that the sample is in favour of the implementation with an electronic tax system in their business. This new system would be a promising means to help businesses voluntarily comply with their tax obligations. In turn, it generates a positive effect on tax collection and compliance levels. Keywords: Electronic system, tax obligations, electronic vouchers, electronic invoicing, taxes.

opencc-by-4.0Aug 2023View details →

Data technostress in university students in Lima

The information was collected using the TS4US scale, previously validated in Spanish in Spain and Chile, and which in this case has been tested with confirmatory factor analysis (CFA) for a sample of 328 university students from four areas of Lima.

opencc-by-4.0Aug 2018View details →

Staminodianthus duckei (Yakovlev) D.B.O.S. Cardoso & H.C. Lima from Colombia collected by M. Montoya, E. Paqui y colaboradores #7322

File Name: TOLI-23288-PER-02-D5-32.jpg CÓDIGO FOTO: TOLI-23288-PER-02-D5-32- Fotografía: SI Nº TOLI: TOLI-23288 PARCELA: PER-02 CÓDIGO: D5-32 Nº COLECTA: 7322 NUEVOS COLECTORES: Marcela Montoya COLECTORES: M. Montoya, E. Paqui y colaboradores Nº MUESTRAS MONTADAS: 1 Homologación: Homologado Nueva fecha del evento : 22/12/2018. Fecha del evento: 22/08/2018. Proyecto : Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana Hábitat: Bosque húmedo tropical (bh-T) Comentario del evento: Bosque de tierra firme, dosel abierto, de 25-30 m, emergentes de 35 m, estrato medio de 15 m, sotobosque denso con alta regeneración natural, presencia de palmas como Lepidocaryum tenue, Oenocarpus bataua, Geonoma sp., capa de hojarazca de 15 cm, abundante materia orgánica. Pendientes pronunciadas. Poca intervención antrópica. Continente: SA Pais: Colombia Estado/Provincia: Amazonas Municipio: Puerto Santander Localidad: Resguardo indígena Nonuya de Villazul. Elevación minima en metros: 250 Elevación maxima en metros: 400 Latitud: -0.654 Longitud original: -72.072 datum geodésico: WGS 84 Latitud decimal: -0.654 Longitud decimal: -72.072 Identificado por: William Ariza Fecha de identificación: 25/01/2019. Familia antigua: Fabaceae Especie antigua: NN Nombre cientifico: Staminodianthus duckei (Yakovlev) D.B.O.S. Cardoso & H.C. Lima Reino: Plantae Filo: Magnoliophyta Clase: Equisetopsida Orden: Fabales Familia nueva: Fabaceae Género nuevo: Staminodianthus especie nueva: duckei Autoría del nombre científico: (Yakovlev) D.B.O.S. Cardoso & H.C. Lima : Fabaceae genero herbario: Staminodianthus especie herbario: duckei Especie de herbario para TNRS: Staminodianthus duckei Especie corregida herbario y desde TNRS: Staminodianthus duckei Familia corregida desde TNRS: Fabaceae : 2395

opencc-byDec 2017View details →

Cántaro Lima Nievería

Material: Cerámica Cultura/Estilo: Lima Datación: Intermedio Temprano (200 a.c. - 600 d.c.) Técnicas: Modelado, pintura positiva Source: Objaverse 1.0 / Sketchfab

opencc-zeroAug 2015View details →

Percepción de docentes y estudiantes sobre el currículo de estudios de una universidad privada de Lima

La matriz de datos contiene las siguientes variables: Docentes, Mención, Sexo, Edad, Percepción de docentes, Estudiantes sobre el currículo, Asignaturas estructuradas e integradas, Asignatura de formación investigativa, Actividades académicas de mayor énfasis y 20 casos.

opencc-byDec 2017View details →

Cántaro tricolor estilo Lima

Material: Cerámica Cultura/Estilo: Lima Datación: Intermedio Temprano (200 a.c. - 600 d.c.) Técnicas: Modelado, pintura positiva Source: Objaverse 1.0 / Sketchfab

opencc-by-4.0Jun 2021View details →

Conectando Cieneguilla. Proyecto digital de turismo sostenible e inteligente basado en el patrimonio arqueológico y la cultura viva de una localidad de Lima, Perú

Digital project for smart and sustainable tourism based on the archaeological heritage and cultural traditions of Cieneguilla (Lima, Perú) as part of the tourist offer and experience.