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Process wastewater from separation and purification processes in the food and biotech industries as well as in biorefineries often contain components that can be recovered as valuable by-products in the context of closed-loop recycling with membrane processes. These effluents have a high proportion of organic components and are particularly complex, which is why they have a high fouling potential

Recent research has provided broad accounts of what high institutional quality is; bureaucrats should be impartial and recruited on merit, public power should not be used for private gain, there should be rule of law, and property rights should be secure. Many scholars argue the reason why, in spite of this knowledge, recent institutional reforms have had limited success is that improvements are n

There is no tradition in Annals of Regional Science that the editors write editorials. However, as of 2020, the editors will each year write an editorial in which we report as well as refect on recent developments of the journal. We hope that this will be of interest for our readers. This editorial is the frst one and marks the start of the strategy to write a yearly editorial. We, i.e., Martin An

Circadian rhythms are physiological and behavioural cycles generated by an endogenous biological clock, the suprachiasmatic nucleus. The circadian system influences the majority of physiological processes, including sleep-wake homeostasis. Impaired sleep and alertness are common symptoms of neurodegenerative disorders, and circadian dysfunction might exacerbate the disease process. The pathophysio

AIMS: Hemiarthroplasty of the hip is usually carried out through either a direct lateral or posterior approach. The aim of this prospective observational study was to determine any differences in patient-reported outcomes between the two surgical approaches.PATIENTS AND METHODS: From the Swedish Hip Arthroplasty Register we identified patients of 70 years and above who were recorded as having had

Although grade inflation is unfair and may imply inefficient allocation of human resources, current knowledge of grade inflation effects on individual outcomes is scarce. One explanation is probably the challenge of measuring and estimating causal grade inflation effects. This study examines the consequences of grade inflation at the upper secondary education level on enrolment in higher education

The study makes an inventory of learning opportunities young people were offered in connection with CEI 2016, one of the annual international conferences organized by the NGO named Caretakers of the Environment International (CEI), which year 2016 took place in Aalborg in Denmark. The learning opportunities offered by this transnational learning community are discussed in relation to some essenti

The latitudinal diversity gradient (LDG) is one of the most widely studied patterns in ecology, yet no consensus has been reached about its underlying causes. We argue that the reasons for this are the verbal nature of existing hypotheses, the failure to mechanistically link interacting ecological and evolutionary processes to the LDG, and the fact that empirical patterns are often consistent with

Background: Time delay from stroke onset to hospital arrival is an important obstacle to recanalization therapy. To increase knowledge about stroke symptoms and potentially reduce delayed hospital arrival, a 27-month national public information campaign was conducted in Sweden. Aim: To assess the effects of a national stroke campaign in Sweden. Methods: This nationwide study included 97,840 patien

A novel modified method for obtaining approximate solutions to difficult optimization problems within the neural network paradigm is presented. We consider the graph partition and the travelling salesman problems. The key new ingredient is a reduction of solution space by one dimension by using graded neurons, thereby avoiding the destructive redundancy that has plagued these problems when using s

Overtourism has emerged as a common concept to describe the perceived negative impacts that large numbers of tourists can have on destinations. Iceland is one of the destinations which has been most associated with the concept of overtourism. Tourism in Iceland grew rapidly from 2010 to 2019, much higher than in most other countries, with Iceland reaching a ranking as high as thirteenth on a list

A multivariate statistical analysis of paper strength and production process data from the SCA Munksund paper mill is presented. The analysis is divided into five parts: (i) paper quality variables, (ii) process variables from the paper machine, (iii) process variables from digester and refiner, (iv) a combination of all process variables, and (v) a further analysis of the z-strength. Analysing

Background A routine goal in the analysis of microarray data is to identify genes with expression levels that correlate with known classes of experiments. In a growing number of array data sets, it has been shown that there is an over-abundance of genes that discriminate between known classes as compared to expectations for random classes. Therefore, one can search for novel classes in array data

This paper deals with the role of a journal's publisher country in determining the expected citation rates of the articles published in it. We analyze whether a paper has a higher citation rate when it is published in one of the large publisher nations, the U.S., U.K., or the Netherlands, compared to a hypothetical situation when the same paper is published in journals of different origin. This wo

Payments to compensate landowners for carrying out costly land-use measures that benefit endangered biodiversity have become an important policy instrument. When designing such payments, it is important to take into account that spatially connected habitats are more valuable for many species than isolated ones. One way to incentivize provision of connected habitats is to offer landowners an agglom

Background: A post marketing surveillance study was conducted to evaluate safety and efficacy of natalizumab in Swedish multiple sclerosis (MS) patients since its introduction in August 2006 until March 2010. Methods: Patients were registered in the web-based Swedish MS-registry at 40 locations and evaluated every 6 months. Adverse events and clinical outcomes were recorded. Results: One thousand