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41 documents, page 4 of 5

Innovating standards through informal consortia: The case of wireless telecommunications

Delcamp, H; Leiponen, A (2014)
We empirically examine the effects of industry consortia on the coordination of innovation strategies of the members. Our analyses utilize membership data from 32 consortia in wireless telecommunication technology subfields from 2000 to 2005 and prior art citations in standards-essential patents. We find that connections among firms in informal technically-oriented consortia significantly increase the likelihood that firms cite each other's patents in subsequent patents essential for the UMTS...

Genomic and Global Approaches to Unravelling How Hypermutable Sequences Influence Bacterial Pathogenesis

Bidmos, F; Bayliss, C (2014)
10/03/14 meb. OA paper OK to add. Rapid adaptation to fluctuations in the host milieu contributes to the host persistence and virulence of bacterial pathogens. Adaptation is frequently mediated by hypermutable sequences in bacterial pathogens. Early bacterial genomic studies identified the multiplicity and virulence-associated functions of these hypermutable sequences. Thus, simple sequence repeat tracts (SSRs) and site-specific recombination were found to control capsular type, lipopolysa...

100GHz ultra-high Q-factor photonic crystal resonators

Otter, William J.; Hanham, Stephen M.; Ridler, Nick M.; Marino, Giuseppe; Klein, Norbert; Lucyszyn, Stepan (2014)

Collective electromagnetic emission from molecular layers on metal nanostructures mediated by surface plasmons

Giannini, V; S?nchez-Gil, J; Garc?a-Ramos, J; M?ndez, E (2007)
Collective electromagnetic processes stemming from molecular emission close to complex nanostructured metal surfaces pumped at and/or near surface-plasmon resonances are theoretically investigated. A classical electrodynamics model is used to describe macroscopically the surface molecular layer emission. Generalized Fresnel coefficients are analytically obtained for planar surfaces, indeed predicting collective quenching for redshifted emission at given angles. The model is introduced into a ...

Graph and Analytical Models for Emergency Evacuation

Desmet, A; Gelenbe, E (2013)
Cyber-Physical-Human Systems (CPHS) combine sensing, communication and control to obtain desirable outcomes in physical environments for human beings, such as buildings or vehicles. A particularly important application area is emergency management. While recent work on the design and optimisation of emergency management schemes has relied essentially on discrete event simulation, which is challenged by the substantial amount of programming or reprogramming of the simulation tools and by the s...

On the Calculation of Solid-Fluid Contact Angles from Molecular Dynamics

Santiso, E; Herdes, C; M?ller, E (2013)
A methodology for the determination of the solid-fluid contact angle, to be employed within molecular dynamics (MD) simulations, is developed and systematically applied. The calculation of the contact angle of a fluid drop on a given surface, averaged over an equilibrated MD trajectory, is divided in three main steps: (i) the determination of the fluid molecules that constitute the interface, (ii) the treatment of the interfacial molecules as a point cloud data set to define a geometric surfa...

Long-range surface polaritons in ultra-thin films of silicon

Giannini, V; Zhang, Y; Forcales, M; G?mez Rivas, J (2008)
08.10.14 KB. Ok to add published version to spiral, OSA policy

Evidence on the Insurance Effect of Redistributive Taxation

Grant, C; Koulovatianos, C; Michaelides, A; Padula, M (2010)
A distinguishing feature among households is whether adult members work or not, since the occupational status of adults affects their available time for home activities. Using a survey method in two countries, Belgium and Germany, we provide household incomes that retain the level of well-being across different family types, distinguished by family size and occupational status of adults. Our tests support that childcare-time costs are important determinants of household well-being. Estimates ...

Dynamic actuation using nano-bio interfaces

Wong, IY; Almquist, BD; Melosh, NA (2010)
The nanoscale dimensions, sensitive electronic control, and flexible architecture of new generations of nanomaterials and nanofabrication techniques hold immense promise not only for electronic devices, but also biological interfaces. As the size scales of these materials approach biological species, interfaces with characteristics designed to emulate their nanoscale biological counterparts are becoming possible. These new systems have higher biocompatibility, functionality, and lower cell to...

Protist predation can favour cooperation within bacterial species

Friman, V-P; Diggle, SP; Buckling, A (2013)
Here, we studied how protist predation affects cooperation in the opportunistic pathogen bacterium Pseudomonas aeruginosa, which uses quorum sensing (QS) cell-to-cell signalling to regulate the production of public goods. By competing wild-type bacteria with QS mutants (cheats), we show that a functioning QS system confers an elevated resistance to predation. Surprisingly, cheats were unable to exploit this resistance in the presence of cooperators, which suggests that resistance does not app...