Results 71 to 80 of about 43,054 (185)
Amber imitation? Two unusual cases of Pinus resin-coated beads in Iberian Late Prehistory (3rd and 2nd millennia BC) [PDF]
, 2019 A group of beads from the artificial cave of La Molina (Lora de Estepa, Sevilla) and Cova del Gegant (Sitges, Barcelona) were made from a biogenic raw material and intentionally covered by a layer of resin.
Avilés Escaño, Miguel Ángel +5 more
core +2 more sources
General-purpose and special-purpose visual systems [PDF]
, 2006 The information that eyes supply supports a wide variety of functions, from the guidance systems that enable an animal to navigate successfully around the environment, to the detection and identification of predators, prey, and conspecifics.
Land, Michael F, Nilsson, Dan-E
core +2 more sources
Multiple types of control by identified interneurons in a sensory-activated rhythmic motor pattern. [PDF]
, 2001 Modulatory interneurons that can drive central pattern generators (CPGs) are considered as good candidates for decision-making roles in rhythmic behaviors.
Benjamin, Paul R +2 more
core +2 more sources
Effects of interleukin-2 on nitric oxide production in molluscan innate immunity [PDF]
Invertebrate Survival Journal, 2008 The hemocytes are the cells responsible for the immunity in molluscs. Cytokines, growth factors, etc, present in the soluble fraction of the hemolymph modulate the immune response.
R Barcia, J I Ramos-Martinez
doaj +1 more source
Continuous breakdown of Purcell's scallop theorem with inertia
, 2007 Purcell's scallop theorem defines the type of motions of a solid body - reciprocal motions - which cannot propel the body in a viscous fluid with zero Reynolds number. For example, the flapping of a wing is reciprocal and, as was recently shown, can lead
Alexander R. M. +3 more
core +1 more source
Central pattern generator for swimming in Melibe [PDF]
, 2005 The nudibranch mollusc Melibe leonina swims by bending from side to side. We have identified a network of neurons that appears to constitute the central pattern generator (CPG) for this locomotor behavior, one of only a few such networks to be described ...
Thompson, Stuart, Watson, Winsor H., III
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Vegetation cycles in a disturbed sequence around the Cobb-Mountain subchron in Catalonia [PDF]
, 2008 A 52 m-long lacustrine sequence has been recovered from the basin of Bòbila-Ordis, near Banyoles (N-E Spain). The presence of Early Biharian rodent teeth (Early Pleistocene) and of a c.
Leroy, SAG
core
Reservoirs and radiocarbon: 14C dating problems in Myvatnssveit, Northern Iceland [PDF]
, 2007 This paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (~AD 870–1000) pagan graves in Mývatnssveit, north Iceland.
Ascough, P.L. +8 more
core
, 2015 Intricate biomineralization processes in molluscs engineer hierarchical structures with meso-, nano-, and atomic architectures that give the final composite material exceptional mechanical strength and optical iridescence on the macroscale.
Estroff, Lara A. +5 more
core +3 more sources
Frontiers in Marine ScienceShellfish harvesting in Saloum Islands is crucial for economic and socio-cultural income, particularly for women. However, the industry is facing decline in stocks and harvested individuals, necessitating urgent shellfish assessment and mapping in the ...
Mbaye Tine +4 more
doaj +1 more source