Results 101 to 110 of about 4,620,298 (319)

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

Trust realisation in multi-domain collaborative environments [PDF]

, 2007
In the Internet-age, the geographical boundaries that have previously impinged upon inter-organisational collaborations have become decreasingly important.
Ajayi, Oluwafemi, Ajayi, O, Oluwafemi Ajayi, Sinnott, R, Richard Sinnott, Sinnott, R.O., Stell, A, Stell, A.J., Anthony Stell   +8 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

Dynamic Authorization Specification for RBAC at CERN

, 2009
Role-based access control (RBAC) project at CERN was designed to protect from accidental and unauthorized access to the LHC and injector equipment. Our model of RBAC introduces concept of dynamic authorization.
Yastrebov, Ilia
core  

Dynamic Keyword Search With Hierarchical Attributes in Cloud Computing

IEEE Access, 2018
A growing number of organizations and individuals outsource their data to the cloud. As the cloud service provider is potentially untrustworthy, cloud user needs to encrypt their sensitive data before outsourcing.
Tao Peng, Qin Liu, Baishuang Hu, Jierong Liu, Jiawei Zhu   +4 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Policy Based Dynamic Negotiation for Grid Services

, 2005
Policy-based dynamic negotiations allow more flexible authorization in complex Grid environments, and relieve both users and administrators from up front negotiations and registrations.
Wolfgang Nejdl, Ionut Const, Daniel Olmedilla, Authorization Ionut Constandache   +3 more
core  

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

A Dynamic Model of Authority in Organizations

In our principal-agent model, the principal can repeatedly delegate authority to an agent with uncertain preferences or take the decisions himself. The principal learns the state at the end of each period and then updates his belief about the agent’s bias based on the decision implemented if he delegated authority.
Bingbing Li, Manuel Foerster
openaire   +4 more sources

Access to high-cost medications for psoriatic arthritis in the National Health System in Brazil: the long path up to dispensation

Advances in Rheumatology, 2019
Background Pharmaceutical Assistance (PA) is a dynamic and multidisciplinary process that aims to supply health systems, programs or services with quality medicines, enabling access and health care, in an efficient and timely manner. The objective of the
Michael Ruberson Ribeiro da Silva, Jéssica Barreto Ribeiro dos Santos, Alessandra Maciel Almeida, Juliana Alvares-Teodoro, Adriana Maria Kakehasi, Francisco de Assis Acurcio   +5 more
doaj   +1 more source