Results 111 to 120 of about 112,775 (298)

Environmental restoration and biological contamination: ecological and legal aspects [PDF]

open access: yesBiotemas, 2005
Environmental restoration is a pressing current need. However, protected areas have been exposed to biological contamination risks because the traditional techniques of restoration frequently use exotic species. This causes some concern, since biological
Ademir Reis   +3 more
doaj  

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

MAMs from Multiple Regression of HPD and Biological Predictors of Extinction Risk in Carnivores

open access: yes, 2016
MAMs from Multiple Regression of HPD and Biological Predictors of Extinction Risk in ...
John L Gittleman (70688)   +5 more
core   +1 more source

Multimodal Imaging Reveals Rapid Catecholamine Uptake and Release by Neutrophils

open access: yesAdvanced Science, EarlyView.
We show that immune cells (neutrophils) synthesize, uptake, and store catecholamine neurotransmitters such as dopamine or adrenaline. They also release them in response to specific stimuli (serotonin), which we directly visualize using fluorescent nanosensors. We further demonstrate that catecholamines affect neutrophil functions (NETosis) and platelet
Jennifer Mohr   +19 more
wiley   +1 more source

Deforestation and avian extinction on tropical landbridge islands

open access: yes, 2010
There are few empirical data, particularly collected simultaneously from multiple sites, on extinctions resulting from human-driven land-use change. Southeast Asia has the highest deforestation rate in the world, but the resulting losses of biological ...
Prawiradilaga, D.   +17 more
core   +1 more source

Possible detection of atmospheric bioaerosol via LiDAR: a wavelength-based simulation study

open access: yesAsian Journal of Atmospheric Environment
This study explores potential of LiDAR technology to rapidly detect aerosolized biological terror agents in the atmosphere. It assesses the application by simulating extinction coefficients and the Ångström exponent at various wavelengths (266, 1064 ...
Juseon Shin, Youngmin Noh
doaj   +1 more source

“Son tutti morti”. Human Extinction and the Apocalyptic Imaginary in Giacomo Leopardi

open access: yesCahiers d’Études Italiennes
This article investigates the speculations on and depictions of human extinction in Giacomo Leopardi’s writings, with particular emphasis on the Operette morali (1824–1832).
Sabrina Ferri
doaj   +1 more source

Biolipid Film‐Fused Electrochemiluminescence for Multipurpose In Situ Bioassays

open access: yesAdvanced Science, EarlyView.
An ECL‐emissive, membrane‐interactive scaffold was fabricated, and facilely fused with natural and non‐native phospholipids into multifactorial mimicries of cytomembranes and vesicles for in vitro representative membrane‐process probing. Such a biointerface‐based, state‐sensitive ECL paradigm not only pinpointed proximal phenomena, including channeling
Jialiang Chen   +9 more
wiley   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

Uncovering the diversification history of marine tetrapods: ecology influences the effect of geological sampling biases

open access: yes
Mesozoic terrestrial vertebrates gave rise to sea-going forms independently among the ichthyosaurs, sauropterygians, thalattosaurs, crocodyliforms, turtles, squamates, and other lineages. Many passed through a shallow marine phase before becoming adapted
Benson, R. B. J., Butler, R. J.
core   +1 more source

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