Results 51 to 60 of about 1,733,424 (331)

Symmetric polarization insensitive directional couplers fabricated by femtosecond laser waveguide writing [PDF]

, 2018
We study analytically the polarization behaviour of directional couplers composed of birefringent waveguides, showing that they can induce polarization transformations that depend on the specific input-output path considered.
Atzeni, Simone, Corrielli, Giacomo, Crespi, Andrea, Osellame, Roberto, Piacentini, Simone, Pitsios, Ioannis   +5 more
core   +4 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

The Stability of Boats: A Science, Technology, Engineering, and Mathematics (STEM) Exercise [PDF]

, 2015
In what might be called genuine Science, Technology, Engineering, and Mathematics (STEM), an engineering construct subject to well-understood physical principles is analyzed mathematically to yield predicted behavior.
Rublein, G.
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Quasiparticle dynamics and spin-orbital texture of the SrTiO3 two-dimensional electron gas [PDF]

, 2014
Two-dimensional electron gases (2DEGs) in SrTiO$_3$ have become model systems for engineering emergent behaviour in complex transition metal oxides. Understanding the collective interactions that enable this, however, has thus far proved elusive. Here we
Bahramy, M. S., Baumberger, F., Buaphet, P., de la Torre, A., Eknapakul, T., King, P. D. C., Meevasana, W., Mo, S. -K., Tamai, A., Walker, S. McKeown   +9 more
core   +3 more sources

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source

Computation of Electrostatic Field near Three-Dimensional Corners and Edges

, 2006
Theoretically, the electric field becomes infinite at corners of two and three dimensions and edges of three dimensions. Conventional finite-element and boundary element methods do not yield satisfactory results at close proximity to these singular ...
Bao, Bassler, Braga, Braun, Brown, Cabanillas-Gonzalez, Caironi, Caironi, Calogero Sciascia, Celebrano, Charrier, Dario Natali, Forrest, Greenham, Guglielmo Lanzani, Jackson, Juan R. Cabanillas-Gonzalez, Kitamura, Le Comber, Lee, Li, Li, Maddalena Binda, Manaka, Michele Celebrano, Natali, Podzorov, Sciascia, Sirringhaus, Slinker, Sze, Takeya, Vazquez, Vissenberg, Yamasaki, Yu   +35 more
core   +1 more source

Atomically engineered interfaces yield extraordinary electrostriction

, 2021
Abstract Electrostriction is a property of all the dielectric materials where an applied electric field induces a mechanical deformation proportional to the square of the electric field. The magnitude of the effect is usually minuscule. However, recent discoveries of symmetry-breaking phenomena at interfaces opens up the possibility to extend ...
Nini Pryds, Haiwu Zhang, Dae-Sung Park, Nicolas Gauquelin, Simone Santucci, Dennis Christensen, Daen Jannis, Dmitry Chezganov, Diana Rata, Ivano Castelli, Johan Verbeeck, Igor Lubomirsky, Paul Muralt, Dragan Damjanovic, Vincenzo Esposito   +14 more
openaire   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Using Seasonal Climate Variability Forecasts: Crop Yield Risk

EDIS, 2007
Circular 1498, an 8-page illustrated report by Clyde W. Fraisse, Joel O. Paz, and Charles M. Brown, explains how to use historical crop yield information available through the AgClimate Web site (www.agclimate.org) to understand yield risk for specific ...
Clyde W. Fraisse, Joel O. Paz, Charles M. Brown   +2 more
doaj   +5 more sources