Results 41 to 50 of about 321,945 (282)

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

Characterization of braided river reservoir architecture based on seismic attribute stacking ensemble learning: A case study of the C-2 oilfield in the Bohai Bay Basin [PDF]

open access: yesYouqicang pingjia yu kaifa
The C-2 oilfield, located in the Bohai Bay Basin, is a fluvial-facies offshore oilfield primarily developed with horizontal wells. It is characterized by thin reservoir layers, vertically stacked multi-phase sandbodies, and rapid lateral facies ...
ZHANG Zhang, MENG Peng, YANG Wei, ZHANG Xiaolong, HUANG Qi, WANG Haoran
doaj   +1 more source

A quantum-dot heat engine operating close to the thermodynamic efficiency limits

open access: yes, 2018
Cyclical heat engines are a paradigm of classical thermodynamics, but are impractical for miniaturization because they rely on moving parts. A more recent concept is particle-exchange (PE) heat engines, which uses energy filtering to control a thermally ...
Burke, Adam M.,   +9 more
core   +1 more source

Reservoir characterization of Pennsylvanian sandstone reservoirs [PDF]

open access: yes, 1991
The overall objectives of this work are: (i) to investigate the importance of various qualities and quantities of data on the optimization of water flooding performance; and (ii) to study the application of newly developed, geostatistical techniques to analyze available production data to predict future prospects of infill drilling.
openaire   +4 more sources

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

open access: yesMolecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra   +10 more
wiley   +1 more source

Key technologies for the fluvial reservoir characterization of marginal oil fields

open access: yesPetroleum Exploration and Development, 2012
Fluvial reservoirs of the lower member of the Neogene Minghuazhen Formation in Q33-1 Oilfield, Bohai Bay Basin, are studied as examples to determine the distribution and characteristics of marginal reservoirs and develop offshore marginal oilfields ...
Hui WANG   +4 more
doaj   +1 more source

Filtering Strategies for Deformation-Rate Distributed Acoustic Sensing

open access: yesSensors, 2022
Deformation-rate distributed acoustic sensing (DAS), made available by the unique designs of certain interrogator units, acquires seismic data that are theoretically equivalent to the along-fiber particle velocity motion recorded by geophones for ...
Jihyun Yang, Jeffrey Shragge, Ge Jin
doaj   +1 more source

Lyapunov instability for a periodic Lorentz gas thermostated by deterministic scattering

open access: yes, 2001
In recent work a deterministic and time-reversible boundary thermostat called thermostating by deterministic scattering has been introduced for the periodic Lorentz gas [Phys. Rev. Lett. {\bf 84}, 4268 (2000)].
A. Wolf   +35 more
core   +1 more source

Joint interpretation of magnetotelluric, seismic, and well-log data in Hontomín (Spain) [PDF]

open access: yes, 2016
Acknowledgements. This work is dedicated to the memory of Andrés Pérez-Estaún, brilliant scientist, colleague, and friend. The authors sincerely thank Ian Ferguson and an anonymous reviewer for their useful comments on the manuscript.
Alcalde, Juan   +9 more
core   +3 more sources

Day/night variations of myeloid and lymphoid cell subsets in the murine inguinal lymph node

open access: yesFEBS Open Bio, EarlyView.
The circadian system is involved in the temporal regulation of the immune system. Our study reveals that two innate immune populations, NKT cells and neutrophils, predominate at the beginning of the day in healthy mice, highlighting how the time of day influences immune responses.
Paula M. Wagner   +6 more
wiley   +1 more source

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