Results 81 to 90 of about 15,772 (216)
A nanofiltration membrane process was developed and evaluated for the concentration of potato fruit juice with low protein content upstream of an evaporator for energy savings. The study included membrane screening, pretreatment assessment, fouling and cleaning investigation, membrane concentration study, and a techno‐economical analysis. ABSTRACT In a
Mikael Sjölin+5 more
wiley +1 more source
We give examples of CAT(0), biautomatic, free-by-cyclic, one-relator groups which have finite-rank free subgroups of huge (Ackermannian) distortion. This leads to elementary examples of groups whose Dehn functions are similarly extravagant. This behaviour originates in manifestations of Hercules-versus-the-hydra battles
Dison, Will, Riley, Timothy R.
openaire +1 more source
On the diversity of test instances for studying branch‐and‐bound performance
Summary In their paper ‘An Automatic Method for Solving Discrete Programming Problems’, Ailsa Land and Alison Doig developed a branch‐and‐bound method for solving the general case of the mixed integer linear programming (MIP) problem. A core part of the algorithm, branch variable selection, has received renewed attention in recent years with the ...
Simon Bowly, Kate Smith‐Miles
wiley +1 more source
Abstract Purpose To provide an overview of artificial tears marketed in the following Nordic countries: Denmark, Finland, Norway, Iceland and Sweden. Furthermore, this review aimed to highlight the different preservatives and other constituents found in artificial tears in the Nordic market, focussing on adverse effects.
K. N. Mikha+9 more
wiley +1 more source
THE PRODUCTION OF APOSYMBIOTIC HYDRA BY THE PHOTODESTRUCTION OF GREEN HYDRA ZOOCHLORELLAE
through circumstances described below, have become algal-free. Aposymbiotic hydra survive and reproduce as well as green animals, providing they are fed regularly ( Muscatine and Lenhoff, 1965 ) , and serve as important control and ex perimental organisms in many experiments examining the physiology and morphol ogy of the symbiosis.
openaire +4 more sources
The pace and shape of ant ageing
ABSTRACT Ants have been proposed as good models to study ageing and the effects of extrinsic mortality because of their long lifespans and plasticity of ageing within species. We discuss how age‐dependent extrinsic mortality might influence queen lifespan, and how the effect of age‐independent extrinsic mortality needs further study, accounting for ...
Luisa M. Jaimes‐Nino, Jan Oettler
wiley +1 more source
Coexisting with large carnivores based on the Volterra principle
Abstract Coexistence with large carnivores represents one of the world's highest profile conservation challenges. Ecologists have identified ecological benefits derived from large carnivores (and large herbivores), yet livestock depredation, perceived competition for shared game, risks to pets and humans, and social conflicts often lead to demands for ...
Mark S. Boyce+2 more
wiley +1 more source
Reactive oxygen species induce mutagenic DNA lesions, such as 8‐oxo‐2′‐deoxyguanosine (8‐oxodG), which acts as a template for dCMP and dAMP incorporation through its anti and syn conformations. Specific residues must regulate the fidelity of templated 8‐oxodG.
Noe Baruch‐Torres+10 more
wiley +1 more source
The Origin of Mucosal Immunity: Lessons from the Holobiont
Historically, mucosal immunity—i.e., the portion of the immune system that protects an organism’s various mucous membranes from invasion by potentially pathogenic microbes—has been studied in single-cell epithelia in the gastrointestinal and upper ...
Katja Schröder, Thomas C. G. Bosch
doaj +1 more source