Results 51 to 60 of about 76,527 (199)
Phyllomedusa: Journal of Herpetology, 2020 Phenology and mortality of embryos in a Colombian population of Nymphargus grandisonae (Anura: Centrolenidae). Studies of phenology and natural history of anurans provide information useful for its conservation.
Daniela Villegas-Mora +3 more
doaj
An Evaluation of eScience Lab Kits for Online Learning [PDF]
, 2017 Higher education online science courses generally lack the hands-on components essential in understanding theories, methods, and techniques in chemistry and biology. Companies like eScience Labs construct kits to facilitate online learning, which provide
Orozco, Diana
core +1 more source
Frontiers of Bright CEP‐Stable Broadband Infrared Sources
Laser &Photonics Reviews, EarlyView.Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley +1 more source
Revista Mexicana de Biodiversidad, 2009 Se registra por primera vez un caso de miasis por larva de Sarcophagidae sobre Halinobatrachium fleishmanni colectada en el Parque Nacional Soberanía (Panamá), siendo éste el primer registro de miasis en anuros de la familia Centrolenidae.We report the ...
Daniel Medina +4 more
doaj
Lithium distribution across the membrane of motoneurons in the isolated frog spinal cord [PDF]
, 1982 Lithium sensitive microelectrodes were used to investigate the transmembrane distribution of lithium ions (Li+) in motoneurons of the isolated frog spinal cord.
A Ullrich +28 more
core +1 more source
In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air
Laser &Photonics Reviews, EarlyView.Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė +9 more
wiley +1 more source
Evaluation of the genotoxic and teratogenic potential of a municipal sludge and sludge-amended soil using the amphibian Xenopus laevis and the tobacco: Nicotiana tabacum L. var. xanthi Dulieu [PDF]
, 2003 The toxic, genotoxic and teratogenicpotential of amunicipal sewage sludge was assessed using the micronucleus assay on the larvae of the amphibianXenopuslaevis and with the tobacco somatic mutation test using the yellow–green xanthiDulieu mutant a1+/a1 ...
Chenon, Pascale +4 more
core +4 more sources
Reconstructing Early Human Subsistence in Near Oceania: New Insights From Matenkupkum and Matenbek
International Journal of Osteoarchaeology, EarlyView.ABSTRACT The colonization of New Ireland ~44–40,000 years ago represents the earliest evidence of human occupation in Near Oceania. Yet, the precise impacts of climatic changes on subsistence strategies during the Late Pleistocene, Last Glacial Maximum, and Holocene remain poorly understood.
Joëlle den Toom +3 more
wiley +1 more source
Check List, 2010 The glass frog Vitreorana uranoscopa (Müller, 1924) has been considered a vulnerable species for the state ofRio Grande do Sul, southern Brazil. This note recorded the presence of the species for São Marcos municipality, extendingthe species distribution
Machado, I. F. +4 more
doaj
Zinc Oxide-Based Self-Powered Potentiometric Chemical Sensors for Biomolecules and Metal Ions
Sensors, 2017 Advances in the miniaturization and portability of the chemical sensing devices have always been hindered by the external power supply problem, which has focused new interest in the fabrication of self-powered sensing devices for disease diagnosis and ...
Muhammad Israr-Qadir +3 more
doaj +1 more source