Concavo-convex brachiopods are generally assumed to have lived with their convex valves against the sediment. This ... taphonomic evidence from orthids and nonproductid strophomenids that concavo-convex brachiopods lived in the reverse life orientation, ... for 11 collections of Ordovician and Devonian nonproductid concavo-convex brachiopods that contain a total of over ... live hosts. Five taphonomic criteria show that (1) concavo-convex shells have greater epibiont cover than other ... and that a more complex functional interpretation of concavo-convexity is required. Hydrodynamic stability was important to ...
Tópico(s): Geology and Paleoclimatology Research
1995 - Cambridge University Press | Paleobiology
John A. Fronimos, Jeffrey A. Wilson, Tomasz K. Baumiller,
... often tails, of sauropod dinosaurs were composed of concavo-convex vertebrae that provided stability without compromising mobility. Polarities of these concavo-convex joints in the neck and tail are ... both polarities. We assessed the rotational stability of concavo-convex joints using pairs of concavo-convex centra loaded near the joint. Sauropod-type ... is always within the convex part of the concavo-convex joint. In sauropod-type joints, the free ... hyperelongated necks and tails by sauropods. Polarity of concavo-convex joints of the appendicular skeleton (e.g., ...
Tópico(s): Ichthyology and Marine Biology
2016 - Cambridge University Press | Paleobiology
Takashi Nakamura, Hiroyuki OGUMA,
... fractures, a unique fracture surface with a fine concavo-convex pattern called Optically Dark Area (ODA) is ... To reveal the formative factors of the fine concavo-convex pattern, this study focuses on a unique ... by SEM analyses. As a result, the fine concavo-convexo morph similar to ODA in subsurface fractures ... initiated fracture surfaces in high vacuum. The fine concavo-convexo morph can be formed regardless of materials ...
Tópico(s): High-Velocity Impact and Material Behavior
2011 - Society of Materials Science | Journal of the Society of Materials Science Japan
Matthew J. Pruden, Steven E. Mendonca, Lindsey R. Leighton,
... predation traces relative to size of biconvex and concavo-convex brachiopods from the Ordovician, Devonian, and Pennsylvanian. ... attacked, as indicated by repair scars. For the concavo-convex brachiopods, the size-at-attack and fossil ... which fossils were not preserved. Thus, predation on concavo-convex brachiopods focused on small individuals, the same ... fossil record. Furthermore, as the repair frequencies of concavo-convex brachiopods increase, so does the difference between ...
Tópico(s): Isotope Analysis in Ecology
2017 - Elsevier BV | Palaeogeography Palaeoclimatology Palaeoecology
Jiqi Wang, Jianquan Ren, Qiang Li, Yifan Liu, Qiuyu Zhang, Baoliang Zhang,
Concavo-convex surface can increase the external surface area and provide multi-directional reflective surface, which has ... series of N-doped carbon microsphere composites with concavo-convex surface (NCMCCS) and their preparation method have ... reported. The precursors organic-inorganic hybrid microspheres with concavo-convex surface (OHMCS) are synthesized by solvothermal method. ...
Tópico(s): Metamaterials and Metasurfaces Applications
2021 - Elsevier BV | Carbon
Masahito Ban, Tsuyoshi Hagiwara, Yoshizumi Masumoto,
... the regular linear pattern consisting of a periodical concavo-convex shape with several μm size were successfully ... to form the linear pattern of the periodical concavo-convex shape were revealed. When an elongation strain ... the PDMS substrate increased, the height of the concavo-convex shape increased. In addition, by an increase ... deposition time both height and width of the concavo-convex shape showed the tendency to increase. A ...
Tópico(s): Surface Modification and Superhydrophobicity
2017 - Elsevier BV | Diamond and Related Materials
... Y. 2011: The ideal hydrodynamic form of the concavo-convex productide brachiopod shell. Lethaia, Vol. 44, pp. ... flume experiments were performed to determine whether the concavo-convex Permian brachiopod Waagenoconcha imperfecta was hydrodynamically adapted ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
2010 - Wiley | Lethaia
Produção Nacional
Maria Celeste Marcondes, Édison Miglioranza, Inês Cristina Batista de Fonseca,
... colhedoras, a de sistema convencional ou de cilindro côncavo e a axial, quanto à qualidade fisiológica de ... períodos diferentes do dia. A colhedora de cilindro côncavo trabalhou, deslocando-se a 5,0km.h-1 ... 3 pontos percentuais. Tanto a colhedora de cilindro côncavo como a axial, desde que convenientemente utilizadas na ...
Tópico(s): Magnetic and Electromagnetic Effects
2005 - SciELO | Revista Brasileira de Sementes
John A. Fronimos, Jeffrey A. Wilson,
... necks of sauropods comprised opisthocoelous vertebrae joined at concavo-convex joints. Opisthocoelous centra also occurred in the ... procoelous centra in the tails of certain lineages. Concavo-convex intercentral joints have been hypothesized to increase ...
Tópico(s): Evolution and Paleontology Studies
2016 - Asociación Paleontológica Argentina | Ameghiniana
The concavo-convex shape of strophomenoid brachiopods has been inferred to be adaptive to a free-lying state. Such ... R. alternata is inconsistent with the hypothesis that concavo-convex brachiopods lived convex-valve-up, as suggested ...
Tópico(s): Aquatic Invertebrate Ecology and Behavior
1998 - Wiley | Lethaia
Lina Zheng, Rui‐Xue Xu, Jinjin Zhang, Fangyong Yu, Claudia Li, Jaka Sunarso, Weimin Zhang, Xiuxia Meng, Naitao Yang,
... and quantitative analysis. Defect-free densified planar and concavo–convex electrolytes were successfully prepared by applying SLA, and the concavo–convex cell yielded a maximum output power density ... and convex surfaces, whereas the edges of the concavo–convex structure were more conducive to the electrochemical ...
Tópico(s): Electronic and Structural Properties of Oxides
2022 - Elsevier BV | Chemical Engineering Journal
Norbert Pałka, W. Ciurapiński, Jarosław Wróbel,
... focusing properties of 2D square photonic crystal with concavo-concavo boundaries.The photonic crystal is built by air ...
Tópico(s): Plasmonic and Surface Plasmon Research
2009 - Polish Academy of Sciences | Acta Physica Polonica A
Produção Nacional
... las últimas aparecen las primeras Pulchellias con vientre cóncavo y ombligo angosto. Las Pulchellias alcanzan su plenitud ... aparece en Colombia el género Heinzia, con vientre cóncavo y obligo abierto, que se formó probablemente en ...
Tópico(s): Geological and Tectonic Studies in Latin America
1956 - | Boletín Geológico
ABSTRACT A substantial proportion (23-69%) of concavo-convex particles deposited from experimental turbidity currents assumed concave up or standing on end positions. The proportion was largest for the high concentration ...
Tópico(s): Hydrology and Sediment Transport Processes
1967 - Society for Sedimentary Geology | Journal of Sedimentary Research
Matazô ABE, Sadahiro Ohmomo, Tsutomu Ōhashi, Takeshi Tabuchi,
... A and B, from the Cultures of Penicillium concavo-rugulosum Get access Matazo Abe, Matazo Abe Laboratory ...
Tópico(s): Microbial Metabolism and Applications
1969 - Oxford University Press | Agricultural and Biological Chemistry
Matazô ABE, Sadahiro Ohmomo, Tsutomu Ōhashi, Takeshi Tabuchi,
... A and B, from the Cultures of Penicillium concavo-rugulosum Get access Matazo Abe, Matazo Abe Laboratory ...
Tópico(s): Microbial Metabolism and Applications
1969 - Oxford University Press | Agricultural and Biological Chemistry
Yoshiro Funakoshi, Tatsuo Asogawa, Eiichi Satake,
... in this study had been designed as a concavo-convex pair that exactly keep their mutual fit ...
Tópico(s): Rheology and Fluid Dynamics Studies
1977 - Taylor & Francis | Drug Development and Industrial Pharmacy
Ajit Bhattacharyya, Gerald M. Friedman,
... and diagonally fractured ooids. Incremental confining pressure yielded concavo-convex and longitudinal contacts, whereas continuous increase in confining pressure resulted in concavo-convex contacts only. In uncompacted samples all observed ...
Tópico(s): Geotechnical and Geomechanical Engineering
1979 - Society for Sedimentary Geology | Journal of Sedimentary Research
By means of a concavo-convex roller compactor, several pharmaceutical powders were compressed into sheets or flakes, which then were reduced in size by an ...
Tópico(s): Drug Solubulity and Delivery Systems
1981 - Elsevier BV | Journal of Pharmaceutical Sciences
... than equi-biconvex or ventri-biconvex alate geometries. Concavo-convex geometries are stable in all orientations except ... current. Spines greatly retard sediment-scour and maintain concavo-convex specimens in orientations with the valves elevated ...
Tópico(s): Coral and Marine Ecosystems Studies
1984 - Wiley | Lethaia
... moving water depends on particle mass, symmetry and concavo‐convexity. Separated empty bivalve shells spin and spiral ... relative magnitude with bed‐particle friction and particle concavo‐convexity. In general, convex‐up particles are the ...
Tópico(s): Fluid Dynamics and Vibration Analysis
1984 - Wiley | Sedimentology
Yvette L. Bordeaux, Carlton E. Brett,
... the host brachiopod shells and depositional environments. The concavo‐convex orthid, Tropidoleptus carinatus (Conrad), as well as ... layer of the host inhospitable for larval settling. Concavo‐convex taxa reveal high percent coverage and diversity ...
Tópico(s): Marine and coastal plant biology
1990 - Taylor & Francis | Historical Biology
... inhalant flow between the valves. Experiments show that concavo-convex brachiopods (Linoproductus, Inflatia) are hydrodynamically most stable ... orientation. Taphonomic data are consistent with these results. Concavo-convex and bioconvex, winged shells, as well as ...
Tópico(s): Geology and Paleoclimatology Research
1986 - Society for Sedimentary Geology | Palaios
... do not apply when these coatings are of concavo-convex shapes. The authors examine this case and ...
Tópico(s): Numerical methods in inverse problems
1989 - IEEE Antennas & Propagation Society | IEEE Transactions on Antennas and Propagation
Produção Nacional
Revisado por pares
Maria Amélia Cesari Quaglia, Sérgio Sheiji Fukusima,
Em condição monocular, 40 observadores julgaram o reverso côncavo de uma máscara facial monocromada cinza e de ... na posição vertical invertida, iluminado por baixo) como côncavos, planos ou convexos. Além disso, as magnitudes dos ...
Tópico(s): Evolutionary Psychology and Human Behavior
2009 - UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE | Estudos de Psicologia (Natal)
... intra-focal pues tiene forma de un cono cóncavo. Su cara superior, o base, ligeramente convexa incluye ... como mandril porta broches. Su perfil cónico, curvilíneo, cóncavo y ensanchado recuerda la corola de la flor ...
Tópico(s): Elbow and Forearm Trauma Treatment
1991 - Elsevier BV | Annales de Chirurgie de la Main et du Membre Supérieur
... research, results from experiments investigating the effects of concavo-convex morphologies of articulate brachiopods are presented. Concave- ...
Tópico(s): Marine Biology and Ecology Research
1994 - Wiley | Lethaia
Produção Nacional
Revisado por pares
Valentim da Silva, Antônio Carlos Vargas Motta, Vander Freitas Melo, Valmiqui Costa Lima,
... estudada; formato convexo dos solos mais oxídicos e côncavo dos solos cauliníticos e com argila 2:1. ... radicais Fe-OH e Al-OH. O formato côncavo foi atribuído a cargas permanentes e a maior ...
Tópico(s): Soil Management and Crop Yield
2008 - Sociedade Brasileira de Ciência do Solo | Revista Brasileira de Ciência do Solo
Produção Nacional
Revisado por pares
Marina Dórea de Almeida, Arthur Costa Rodrigues Farias, Marcos Alan Vieira Bittencourt,
... face considerada mais agradável apresentava um perfil levemente côncavo, com a mandíbula mais proeminente. Nesse, analisando-se ... retrusão. Contudo, para as faces femininas, os perfis côncavos foram mais rejeitados do que os convexos. CONCLUSÃO: ...
Tópico(s): Dental Education, Practice, Research
2010 - Dental Press Editora | Dental Press Journal of Orthodontics
The valve opening system of the Permian concavo-convex productid brachiopod Waagenoconcha imperfecta is discussed in reference to the mode of the valve articulatory system and the reconstructed musculatory system. The ...
Tópico(s): Geochemistry and Elemental Analysis
2007 - | Paleontological Research