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A review of urban ecosystem services: six key challenges for future research

Global urbanization creates opportunities and challenges for humanwell-being and transition towards sustainability. Urban areas are human-environment systems that depend fundamentally on ecosystems, and thus require an understanding of the management of urban ecosystem services to ensure sustainable urban planning. The purpose of this study is to provid easy stematic review of urban ecosystem sser

Cost-effectiveness of surgery and its policy implications for global health: a systematic review and analysis

Background The perception of surgery as expensive and complex might be a barrier to its widespread acceptance in global health efforts. We did a systematic review and analysis of cost-effectiveness studies that assess surgical interventions in low-income and middle-income countries to help quantify the potential value of surgery. Methods We searched Medline for all relevant articles published betw

Quo vadis amphibia? Global warming and breeding phenology in frogs, toads and salamanders

As the earth is getting warmer, many animals and plants have shifted their timing of breeding towards earlier dates. However, there is substantial variation between populations in phenological shifts that typically goes unexplained. Identification of the different location and species characteristics that drive such variable responses to global warming is crucial if we are to make predictions for

The male sex pheromone of the butterfly Bicyclus anynana: towards an evolutionary analysis.

BACKGROUND: Female sex pheromones attracting mating partners over long distances are a major determinant of reproductive isolation and speciation in Lepidoptera. Males can also produce sex pheromones but their study, particularly in butterflies, has received little attention. A detailed comparison of sex pheromones in male butterflies with those of female moths would reveal patterns of conservatio

Self-Service BI does it Change the Rule of the Game for BI Systems Designers

Users of Business Intelligence (BI) systems have started to demand more flexible systems in which they could be empowered to serve themselves – self-service BI. In this paper we aim at explaining how such development influences designers of BI solutions and how it impacts the design situation. To say something about this we adapted the PACT (People, Activity, Context, Technology) framework on the

Medial Temporal Lobe Atrophy Increases the Specificity of Cerebrospinal Fluid Biomarkers in Alzheimer Disease with Minor Cerebrovascular Changes.

Background: Although cerebrospinal fluid (CSF) biomarkers and medial temporal lobe atrophy (MTA) contribute to the diagnosis of Alzheimer disease (AD), they may not be specific. Relatively little is known about how they correlate with each other. Purpose: To identify the validity of the radiological linear measurements of brain atrophy in AD diagnosis by examining the correlation with CSF biomarke

Anterior colporrhaphy compared with collagen-coated transvaginal mesh for anterior vaginal wall prolapse: a randomised controlled trial

ObjectiveTo investigate the anatomical cure rate and complications related to collagen-coated mesh for cystocele, compared with a conventional anterior colporrhaphy. DesignA randomised controlled study. SettingSix departments of obstetrics and gynaecology in Norway, Sweden, Finland, and Denmark. PopulationWomen aged 55years or older, referred for surgery with a prolapse of the anterior vaginal wal

The crisis of a definition: Human trafficking in Bulgarian law

This article develops two arguments. First, at a national level in Bulgaria, the human trafficking framework is inoperable for identifying abuses worthy of consideration. By comparing the Bulgarian criminal law definition of human trafficking with the international law definition, I argue that the national criminal law definition is overly inclusive. This state of the Bulgarian criminal law makes

Field-free molecular alignment probed by the free electron laser in Hamburg (FLASH)

High flux extreme ultraviolet (XUV) sources like the free electron laser (FEL) in Hamburg (FLASH) offer the possibility of diffractive imaging of small objects. Irrespective of whether the diffraction is based on the detection of photons or photoelectrons, it is required that the measurement is done in the reference frame of the molecule meaning that, for a sample of several molecules, it is neces

Frequent development of chronic obstructive pulmonary disease in primary SS--results of a longitudinal follow-up.

Objectives. To study the longitudinal development of pulmonary function in patients with primary SS (pSS) and its association with respiratory symptoms, pulmonary radiographic findings and clinical features of pSS.Methods. Forty-one pSS patients, previously evaluated by pulmonary function tests (PFTs), were included in the study. The patients were studied at baseline and follow-up by PFT and at fo

Många över 80 år hade kunnat få vård utanför sjukhuset.

Ageing populations and higher ambitions continuously drive healthcare costs in Sweden and worldwide. During the last two decades, downsizing hospital bed capacity has been the strategy for cutting expenditure in the Swedish healthcare system. However, the lack of implementation of new and viable outpatient alternatives has led to a widespread overcrowding problem in Swedish hospitals and emergency

The Dirichlet problem for standard weighted Laplacians in the upper half plane

In this paper the Dirichlet problem for a class of standard weighted Laplace operators in the upper half plane is solved by means of a counterpart of the classical Poisson integral formula. Boundary limits and representations of the associated solutions are studied within a framework of weighted spaces of distributions. Special attention is given to the development of a, suitable uniqueness theory

Can Economics Explain Where All Inclusive Deals Are Offered?

This paper investigates why all-inclusive travel packages are offered at some hotels but not at others. Using the theory of transaction cost, it is argued that all-inclusive contracts mitigate a hold-up problem and that the severity of this problem varies with regard to the hotel's distance from the resort centre. This hypothesis is tested empirically against data from 3,798 hotel offers and is st

Volatility Risk Premium, Risk Aversion and the Cross-Section of Stock Returns

We test if innovations in investor risk aversion are a priced factor in the stock market. Time series tests show that the new factor partly explains the strong momentum effect in stock returns. Furthermore, using 25 portfolios sorted on book-to-market and size as test assets, our new factor together with the market factor explains 64% of the variation in average returns compared to 60% for the Fam

Structure of cellulose and microcrystalline cellulose from various wood species, cotton and flax studied by X-ray scattering

The structure of microcrystalline cellulose (MCC) made by mild acid hydrolysis from cotton linter, flax fibres and sulphite or kraft cooked wood pulp was studied and compared with the structure of the starting materials. Crystallinities and the length and the width of the cellulose crystallites were determined by wide-angle X-ray scattering and the packing and the cross-sectional shape of the micr

New standardized cystatin C and creatinine GFR equations in children validated with inulin clearance

This study compares glomerular filtration rate (GFR) equations in children based on standardized cystatin C (CYSC) and creatinine (CREA) and their combinations with renal clearance of inulin (C-inulin). A total of 220 children with different renal disorders were referred for C-inulin (median 84 ml/min/1.73 m(2)). Bias, precision (interquartile range, IQR), and accuracy (percentage of estimates +/-