Results 81 to 90 of about 15,772 (216)

Concentration of Potato Fruit Juice From the Starch Industry Using Nanofiltration Membranes as Pretreatment Process Upstream an Evaporator for Energy Savings

open access: yesStarch - Stärke, EarlyView.
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

Hydra groups

open access: yesCommentarii Mathematici Helvetici, 2013
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

open access: yesAustralian &New Zealand Journal of Statistics, EarlyView.
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

Can the choice of artificial tears harm patients? A narrative review with an overview of the Nordic market

open access: yesActa Ophthalmologica, EarlyView.
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

open access: yesThe Biological Bulletin, 1976
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

open access: yesBiological Reviews, EarlyView.
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

open access: yesConservation Biology, EarlyView.
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

A steric gate prevents mutagenic dATP incorporation opposite 8‐oxo‐deoxyguanosine in mitochondrial DNA polymerases

open access: yesThe FEBS Journal, EarlyView.
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 Hydra

open access: yesmBio, 2016
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

Home - About - Disclaimer - Privacy