Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Alexander P. Petroff"'
Autor:
Ngoc Kim Nguyen, Bella Poduska, Mia Franks, Manoranjan Bera, Ian MacCormack, Guoxing Lin, Alexander P. Petroff, Samir Das, Arundhati Nag
Publikováno v:
Biosensors, Vol 14, Iss 5, p 247 (2024)
Copper is an essential trace metal for biological processes in humans and animals. A low level of copper detection at physiological pH using fluorescent probes is very important for in vitro applications, such as the detection of copper in water or u
Externí odkaz:
https://doaj.org/article/e50e3f7ef255457d82aeb165d289c7f4
Autor:
Malcolm R. Walter, Vanja Klepac-Ceraj, David T. Flannery, Alexander Evans, Alexander P. Petroff, Biqing Liang, Min Sub Sim, Tanja Bosak
Publikováno v:
Geosciences, Vol 2, Iss 4, Pp 235-259 (2012)
Some modern filamentous oxygenic photosynthetic bacteria (cyanobacteria) form macroscopic tufts, laminated cones and ridges that are very similar to some Archean and Proterozoic stromatolites. However, it remains unclear whether microbes that constru
Externí odkaz:
https://doaj.org/article/6fe28f412691466bbc69653dab662089
Publikováno v:
Royal Society Open Science, Vol 2, Iss 11 (2015)
Microbes living in stagnant water typically rely on chemical diffusion to draw nutrients from their environment. The sulfur-oxidizing bacterium Thiovulum majus and the ciliate Uronemella have independently evolved the ability to form a ‘veil’, a
Externí odkaz:
https://doaj.org/article/31a422e3174c446e99fd4df571afb615
Publikováno v:
Physical review letters. 125(5)
We investigate the development of mobility inversion and fingering when a granular suspension is injected radially between horizontal parallel plates of a cell filled with a miscible fluid. While the suspension spreads uniformly when the suspension a
Publikováno v:
Journal of Statistical Physics. 167:763-776
Mud is a porous medium containing a high density of diverse microorganisms. It is out of equilibrium as the energy from a photon flux is dissipated by a cascade of biochemical reactions, mediated by the metabolisms of the constituent organisms. Despi
Publikováno v:
Physical Review E. 98
Ecosystems persist over geological timescales by continuously cycling nutrients. However, we lack a quantitative model of how diverse organisms organize with respect to one another. We observe these dynamics in a quasi-two-dimensional microbial ecosy
Publikováno v:
Annual Review of Earth and Planetary Sciences. 41:21-44
Stromatolites document microbial interactions with sediments and flowing water throughout recorded Earth history and have the potential to illuminate the long-term history of life and environments. Modern stromatolites, however, provide analogs to on
Autor:
Alexander P. Petroff, Alexander J. Evans, Biqing Liang, Vanja Klepac-Ceraj, Min Sub Sim, David Flannery, Tanja Bosak, Malcolm R. Walter
Publikováno v:
Geosciences, Vol 2, Iss 4, Pp 235-259 (2012)
MDPI
Geosciences; Volume 2; Issue 4; Pages: 235-259
MDPI
Geosciences; Volume 2; Issue 4; Pages: 235-259
Some modern filamentous oxygenic photosynthetic bacteria (cyanobacteria) form macroscopic tufts, laminated cones and ridges that are very similar to some Archean and Proterozoic stromatolites. However, it remains unclear whether microbes that constru
Publikováno v:
Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2012, 344 (1), pp.33--40. ⟨10.1016/j.crte.2011.12.004⟩
Comptes Rendus Géoscience, Elsevier, 2012, 344 (1), pp.33--40. ⟨10.1016/j.crte.2011.12.004⟩
International audience; Networks fed by subsurface flow are a natural, but dynamically simple, system in which to consider general problems of network growth. Here we present four examples in which this dynamic simplicity can be used to develop a qua
Autor:
Daniel H. Rothman, Tanja Bosak, Jeannie Mui, Hojatollah Vali, Jean Luc Guerquin-Kern, Alexander P. Petroff, Biqing Liang, Ting Di Wu
Publikováno v:
Journal of Theoretical Biology. 289:90-95
Microbes in natural settings typically live attached to surfaces in complex communities called biofilms. Despite the many advantages of biofilm formation, communal living forces microbes to compete with one another for resources. Here we combine math