Results 31 to 40 of about 813 (223)

Sistema de clasificación de las setas de crustáceos Stygocarididae y Patagonaspididae (Anaspidacea)

open access: yesActa Zoológica Lilloana, 2010
Se clasificaron las extensiones cuticulares de especies de las familias Stygocarididae Noodt, 1963, y Patagonaspididae Grosso y Peralta, 2002 (Anaspidacea), en base a observaciones con microscopía óptica y electrónica.
Marcela A. Peralta
doaj  

A new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae)

open access: yesNordic Journal of Botany, EarlyView.
Revisions of herbarium collections reveal a new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae). Strophopappus comprises nine species occurring in South America, eight of which are endemic to Brazil. Currently, Vernonia riedeliana is treated as a synonym of Strophopappus bicolor.
Danielle Remor   +2 more
wiley   +1 more source

The Swimming Setae of Daphnia carinata [PDF]

open access: yesJournal of Cell Science, 1950
ABSTRACT The structure, renewal, embryonic development, and regeneration of the swimming setae of Daphnia carinata are described. Each seta is formed by four giant cells, two (the core cells) forming the distal segment, and two (the sheath cells) the proximal segment. The inner ends of these cells extend back, as the seta strand, through
openaire   +2 more sources

Hexapod Locomotion Across Structured and Unstructured Terrains: A Data‐Driven Review of Modeling, Control, and Validation

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The design of a hexapod is complex and requires integration between kinematic models, control systems, and sensing. Existing literature has reviewed these sub‐systems in isolation. Since 2021, there has been no review of the field despite significant advancements in soft soil, lunar traversal, and artificial intelligence.
Akhil Rampersad, Bashan Naidoo
wiley   +1 more source

Clave para los géneros más comunes de larvas de Ixodida (Acari:Ixodidae)

open access: yesAgronomía Costarricense, 2006
Se presenta una clave, a nivel de género, para larvas de garrapatas duras, utilizando caracteres de fácil reconocimiento: surco anal, setas posthypostomales, ojos, sensilla sagittiformia, festones, setas marginales y setas dorsales del tarso I.
Mario Vargas V.
doaj  

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva   +7 more
wiley   +1 more source

Radiographic Screening of Wild and Semi‐Wild Cape Ground Squirrels (Geosciurus inauris) for the Presence of Peri‐Apical Masses Associated With Elodont Incisor Teeth

open access: yesZoo Biology, EarlyView.
Peri‐apical masses were absent in both wild and semi‐wild Cape ground squirrels, despite dietary differences and minor incisor trauma. These findings suggest such lesions are rare outside captivity and not induced by low‐fiber diets alone, adding to the literature on environmental and dietary risk factors in elodont tooth pathology.
Quintin Norval   +2 more
wiley   +1 more source

APROVECHAMIENTO DE METABOLITOS NITROGENADOS DEL CULTIVO DE TILAPIA EN UN SISTEMA ACUAPÓNICO

open access: yesEcosistemas y Recursos Agropecuarios, 2015
En un ciclo de producción de tilapia, se realizó el cultivo de hongos setas, forrajes verdes y cucurbitáceas en un sistema acuapónico, con el objetivo de evaluar la eficiencia en la remoción y aprovechamiento de desechos nitro- genados.
ALEJANDRO CERVANTES-SANTIAGO   +2 more
doaj   +1 more source

First record of the forensically important genus Protopiophila Duda (Diptera: Piophilidae) from South Korea and an integrative framework for forensic identification

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract The family Piophilidae is of significant forensic importance due to its association with late‐stage decomposition; however, the Korean piophilid fauna remains poorly studied, lacking comprehensive morphological and molecular data. This study reports the first record of the genus Protopiophila Duda from South Korea.
Sangjin Han   +3 more
wiley   +1 more source

El género Ceroplastes (Homoptera: Coccidae) en Colombia II

open access: yesCaldasia, 1984
Las principales características de esta especie son la presencia de setas tipo estigmático a 10 largo de toda la margen y la abundante cantidad y diversidad de poras dorsales.
Mosquera P. Felipe
doaj  

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