Results 61 to 70 of about 3,063,115 (364)

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Tidal Estuary Morphodynamics of the Knik Arm [PDF]

open access: yes, 2015
Presented to the Faculty of the University of Alaska Anchorage in Partial Fulfillment of the Requirements For the Degree of MASTER OF CIVIL ENGINEERINGA three-dimensional unsteady flow numerical model was developed to study sediment transport due to
Lewis, Steven E.
core  

Observations in a sediment-laden flow by use of laser-doppler velocimetry [PDF]

open access: yes, 1981
The laser-Doppler velocimetry technique was adapted for use in sediment-laden flows. The developed instrumentation was used to make one-dimensional, instantaneous measurements of both fluid and sediment grain velocities throughout the water column in ...
van Ingen, Catharine
core   +3 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The transportation for cohesive bank‐collapsed materials in a straight channel with the prospect of climate change

open access: yesEngineering Reports
The transportation of bank‐collapsed materials is a key issue among river evolution processes. In this study, a series of flume experiments were conducted to monitor riverbank collapse processes and to explore the regularity of transportation for ...
Haifei Liu, Guosheng Duan, Li Cheng
doaj   +1 more source

Modeling the Impacts of Land Reclamation on Sediment Dynamics in a Semi-Enclosed Bay

open access: yesJournal of Marine Science and Engineering
Semi-enclosed bays are significantly influenced by the interactions between land and sea, as well as human activities. One notable human activity, land reclamation, impacts water exchange within these bays.
Yi Zhong   +8 more
doaj   +1 more source

Numerical Simulation of Flow and Suspended Sediment Transport in the Distributary Channel Networks

open access: yesJournal of Applied Mathematics, 2014
Flow and suspended sediment transport in distributary channel networks play an important role in the evolution of deltas and estuaries, as well as the coastal environment.
Wei Zhang, Qiong Jia, Xiaowen Chen
doaj   +1 more source

Designing Improved Sediment Transport Visualizations [PDF]

open access: yes, 2013
Monitoring, or more commonly, modeling of sediment transport in the coastal environment is a critical task with relevance to coastline stability, beach erosion, tracking environmental contaminants, and safety of navigation.
Beaudoin, Jonathan   +6 more
core   +1 more source

Sediment transport and dispersal in the nearshore of “flash-flood” rivers [PDF]

open access: yes, 2014
River sediment dispersal on the near-shore of “flash-flood” rivers is investigated using a coupled wave-current-sediment transport model. Besòs and Llobregat rivers (short and mountainous rivers in NW Mediterranean Sea, near to Barcelona City) are used ...
Espino Infantes, Manuel   +4 more
core   +1 more source

Nicotinamide N‐methyltransferase promotes drug resistance in lung cancer, as revealed by nascent proteomic profiling

open access: yesMolecular Oncology, EarlyView.
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou   +5 more
wiley   +1 more source

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