Results 101 to 110 of about 871,856 (304)

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Capillary Imbibition of Concrete Containing Cold Bonded Fly Ash-Based Lightweight Aggregate in a Salt Environment

Civil Engineering Dimension
Cold bonded lightweight aggregate generated from fly ash (FA LWA) has become an interesting approach to increase the consumption of fly ash and prevent over-mining of natural aggregate.
Puput Risdanareni, Mohammad Sulton, Nindyawati Nindyawati, Ditya Hafidz Rosyidi, Januarti Jaya Ekaputri, Rafiza Binti Abd. Razak, Mohd Mustafa Al Bakri Abdullah   +6 more
doaj   +1 more source

Evaluation of effectiveness of natural organic compounds removal from water in hybrid processes

Journal of Water and Land Development, 2016
Natural organic matter (Natural Organic Matter – NOM) represents a mixture of diverse chemical structure and different properties. The humic substances constitute an important component of NOM, and they are responsible for water color and taste, also ...
Malczewska Beata
doaj   +1 more source

Biofilms in porous media: development of macroscopic transport equations via volume averaging with closure for local mass equilibrium conditions [PDF]

, 2009
In this work, we upscale a pore-scale description of mass transport in a porous medium containing biofilm to develop the relevant Darcy-scale equations.
Quintard, Michel, Wood, Brian D., Orgogozo, Laurent, Bues, Michel, Golfier, Fabrice   +4 more
core   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Strategies to improve the thermoelectric performance of iron silicide-based materials

Science and Technology of Advanced Materials
Iron silicide (β-FeSi2) has attracted considerable interest as a sustainable thermoelectric material due to its abundance, non-toxicity, and environmental compatibility.
Sopheap Sam, Sreypich Say, Kosuke Yamazaki, Hiroshi Nakatsugawa   +3 more
doaj   +1 more source

Spin transport of excitons [PDF]

, 2009
We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (CQW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of ...
Butov, L.V., Leonard, J. R., Gossard, A.C., Butov, L. V., Ostatnicky, T., Gossard, A. C., Leonard, J.R., Kuznetsova, Y.Y., Yang, Sen, Kavokin, A., Kuznetsova, Y. Y.   +10 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Rhenium-Induced Negative Magnetoresistance in Monolayer Graphene

Magnetochemistry
The impact of rhenium doping on the transport properties and electron localization in monolayer graphene was experimentally investigated. In this study, we report the emergence of unsaturated negative magnetoresistance in Re-doped graphene devices, which
Ying Zhang, Jiali You, Weiwei Li, Zijie Huang, Yuxiang Feng, Yuyu Liu, Jing Li   +6 more
doaj   +1 more source

Analysis of transport properties and photoconductive response of single InAs nanowires

, 2009
Semiconductor nanowires are artificial structures of nanometer size with an approximately cylindric shape. They have an aspect ratio much larger than one so that, in most instances, they can be considered 1D systems.
COSTANTINI, DANIELE
core