We present an optimization procedure that mixes advanced large-scale optimization methods and heuristics to solve large instances (with over 1.7 million integer variables) of the routing and spectrum allocation (RSA) problem - a basic optimization problem in flexgrid elastic optical networks. We formulate the problem as a mixed-integer program for which we develop a branch-and-price algorithm enha

We present an on-chip acoustofluidic platform for harvesting a target microalgal species from a heterogeneous population of cells and particles based on their size, density, and compressibility in a rapid, non-invasive, energy-efficient, continuously running, and automated manner. For our proof-of-principle demonstration, we use Euglena gracilis as a target species. Specifically, we show the simul

Bats are currently killed in large numbers at wind turbines worldwide, but the ultimate reason why this happens remains poorly understood. One hypothesis is that bats visit wind turbines to feed on insects exposed at the turbine towers. We used single molecule next generation DNA sequencing to identify stomach contents of 18 bats of four species (Pipistrellus pygmaeus, Nyctalus noctula, Eptesicus

Municipal wastewater treatment plants are constantly forced to make improvements. The main objectives are to reduce energy consumption, to increase the treatment capacity and to improve the effluent water quality. Microsieves in combination with chemical pretreatment can potentially fulfil these objectives. In this work, experiments were mainly conducted at the large pilot scale, and supplementaryMunicipal wastewater treatment plants are constantly forced to make improvements. The main objectives are to reduce energy consumption, to increase the treatment capacity and to improve the effluent water quality. Microsieves in combination with chemical pretreatment can potentially fulfil these objectives. In this work, experiments were mainly conducted at the large pilot scale, and supplementary

A new large igneous province (LIP), the 1501 ± 3 Ma Kuonamka LIP, extends across 700 km of northern Siberia and is linked with coeval dikes and sills in the formerly attached Sao Francisco craton (SFC)-Congo craton to yield a short-duration event 2000 km across. The age of the Kuonamka LIP can be summarized as 1501 ± 3 Ma (95% confidence), based on 7 U-Pb ID-TIMS ages (6 new herein) from dolerite

A photographic play in five acts based on Poe's The Raven and Lou Reed's lyric. Raven is the Trickster, the one who became and remained everything to every man - god, animal, human being, buffoon, he was before good and evil, denier, affirmer, destroyer and creator.

The seasonality of solar irradiance and precipitation may regulate seasonal variations in tropical forests carbon cycling. Controversy remains over their importance as drivers of seasonal dynamics of net primary productivity in tropical forests. We use ground data from nine lowland Amazonian forest plots collected over 3 years to quantify the monthly primary productivity (NPP) of leaves, reproduct

Around the globe more than 350,000 citizens live with a sophisticated hearing aid device called Cochlear Implant. In many countries CI is an institutionalized medical procedure for restoring deafened with a technological sense of hearing but the social challenges for users is a largely unexplored issue. Addressing this social dimension, the article explores how Cochlear Implant works as a boundary

A theoretical framework for understanding public library development is presented; plural agonistics is used in combination with an approach inspired by post-humanism. The framework is related to examples from a study of two Swedish public libraries. Antagonism is viewed as foundational, and democracy as an ongoing process, the task being to transform antagonism to agonism, with institutions like

PurposeThe purpose of this paper is to advocate and contribute to a more nuanced and discerning argument when ascribing a democratic role to libraries and activities related to information literacy.Design/methodology/approachThe connections between democracy and libraries as well as between citizenship and information literacy are analysed by using Mouffe’s agonistic pluralism. One example is prov

Empathy concerns the feeling of understanding others’ experiences from their perspective, and confronts you with the presence of a qualitative experience that you are not living through yourself. In aesthetics empathy has been conceived as bodily inner imitation. Taking a theoretical, interdisciplinary approach that merges insights from psychology, philosophy, and phenomenology within the dynamic

Grundämnena molybden, wolfram och vanadin spelar viktiga roller i biologiska system. De återfinns bl a i ett antal enzymer, där de genomför s k syreöverföringsreaktioner, d v s de tar en syreatom från en molekyl och överför den till en annan molekyl. Sådana reaktioner är av stor vikt i kemi, eftersom införandet av syre i olika molekyler är viktig vid framställning av många kemikalier som kan använA series of new dioxomolybdenum(VI) and -tungsten(VI) complexes of tripodal tetradentate and tridentate amino bis- and monophenolate ligands have been synthesized and characterized. The majority of the complexes are mononuclear, but dimeric and trimeric oxo-bridged M(VI) (M = Mo, W) were also obtained. The reactivities of all complexes have been investigated in oxygen atom transfer (OAT) processes

This study documents the advancement of laying dates in three species of tits (Paridae) in southernmost Sweden during recent decades, and the absence of a similar response in the pied flycatcher Ficedula hypoleuca. It is based on several different nestbox studies; the oldest one starting in 1969. During 1969 to 2012, mean spring temperatures in the study area increased by between 0.06 and 0.08 °C This study documents the advancement of laying dates in three species of tits (Paridae) in southernmost Sweden during recent decades, and the absence of a similar response in the pied flycatcher Ficedula hypoleuca. It is based on several different nestbox studies; the oldest one starting in 1969. During 1969 to 2012, mean spring temperatures in the study area increased by between 0.06 and 0.08°C p

Complete wetting is crucial for efficient recombination of powders. On the powder bed scale, wetting is governed solely by capillary forces and the resistance to flow, i.e. spontaneous imbibition. Slow or incomplete imbibition of the powder bed may lead to gelling of the liquid front, which will stop the recombination process and cause the formation of lumps, which is usually undesirable. In this

Background: Ulcerative colitis (UC) is a chronic inflammatory disease of the colon with unclear pathogenesis. A dysbiotic intestinal microbiota is regarded as a key component in the disease process and there has been significant interest in developing new treatments which target the microbiota. Aim: To give an overview of the studies to date investigating prebiotics and synbiotics for the treatmen

Neighbourhood peer effects (social influence) in the diffusion of residential solar photovoltaics (PV) have previously been identified and quantified in a number of studies. Yet, little has been known about the inner workings of peer effects in PV diffusion. In the present work, a survey and interviews were used to study peer effects among Swedish PV adopters. Participants acknowledged peer effect