Sökresultat

Freshwater ecosystems in the central Andes provide critical ecosystem services (ES), including water purification, baseflow regulation, groundwater recharge, and cultural and recreational benefits. However, these high-mountain systems are increasingly threatened by changing land use, climate variability, and accelerating pressure on water resources. Understanding local willingness to pay for conse

We consider a semimartingale X which is reflected at an upper barrier T and a lower barrier S, where S and T are also semimartingales such that T is bounded away from S. First, we present an explicit construction of the reflected process. Then we derive a relationship in terms of stochastic integrals linking the reflected process and the local times at the respective bathers to X, S, and T. This r

Intensive agricultural management negatively affects both natural enemies of pests and pollinators. Such management also has the potential to adversely affect the ecosystem services that these communities confer. Organic management has been proposed as an alternative method to mitigate such problems by restoring the services provided by arthropod communities. We evaluated the effect of organic man

The paper suggests conditions for presence of quadratic Lyapunov functions for nonlinear observer based feedback systems with an input nonlinearity in the feedback path. Provided that the system using state feedback satisfies the circle criterion (i.e., when all states can be measured), we show that stability of the extended system with output feedback control from a (full state) Luenberger-type o

With timely allocated movement phases, mobile organisms can match their space-use with the seasonality of the environment and thereby optimise their resource utilisation over time. Long-distance avian migrants are known to move with the seasonal dynamics on an annual basis, but how individuals respond to seasonality within their tropical non-breeding range has been less studied. Here we analyse th

Katedralen var en av de mest centrala institutionerna i det medeltida samhället. Kring stiftets biskop samlades den kyrkliga makten och dåtidens elit, dygnet runt firades gudstjänster och här utbildades stiftets präster. En viktig roll för livet i och kring katedralen hade domkapitlet eller katedralkapitlet, dvs det organiserade prästerskap som betjänade domkyrkan och bistod biskopen.I mitt avhandThe cathedral was one of the most important institutions in medieval Europe. The local as well as ecclesiastical elite gathered around it and its bishop; the liturgy was celebrated day and night, year after year; the cathedral served as educational institution of the clergy. The cathedral chapter, i.e. the organized clergy that served at the cathedral, played a decisive part in all this.The overar

Abstract in Undetermined Previous work has presented contrasting views of the last glaciation on Jameson Land, central East Greenland, and still there is debate about whether the area was: (i) ice-free, (ii) covered with a local non-erosive ice cap(s), or (iii) overridden by the Greenland Ice Sheet during the Last Glacial Maximum (LGM). Here, we use cosmogenic exposure ages from erratics to reconc

This thesis consists of an introduction and four self-contained chapters that address issues of how organizations and institutions should be designed in order to provide adequate incentives and enable coordination. The first essay uses a multi-task principal-agent model to examine two reasons why coordination problems are common when public sector organizations share responsibilities: the incenti

The acoustic emission that is detectable in the forming of complex thin part plates contains information about the quality of the pressed plates. The information can be used as process control and to filter out advanced thin plates with defects such as cracks. The article describes the results obtained in a try-out pressing process in special developed punch-die pairs with different pressing

Breast cancer is the most common cancer form among women in the Western world. Although treatment has improved during the last decades, there is still a significant proportion of the patients who are not cured. To further improve clinical outcome we need new treatment strategies, new prognostic markers, and new treatment predictive factors for personalized medicine.In this dissertation I have focu

Objective. Our hypothesis states that the reactivity of the cutaneous microcirculation is reduced in patients with hypertension compared with healthy subjects. The objective was to verify the hypothesis by measuring microvascular function in hypertensive patients. Design. The study was a controlled trial with two arms: 15 hypertensives and 15 normotensives were enrolled, aged 30-60 years, and in h

This article deals with Gerhard Oestreich's concept of 'Sozialdisziplinierung' and its possible status as a challenger to the two main schools within the Swedish state of research concerning the Early Modern state-building process. These main streams in Swedish historical research concists of the Interventionists, who argue for the state's more or less brutal intervention in the local autonomous s

PURPOSE: The dissertation addresses the choice of mode of transport, and the selection process, for local travel to regional rail service, with special emphasis on the significance of the bicycle. APPROACH TO THE PROBLEM AND METHODOLOGY: Choice of mode can be viewed as a 2-stage selection process in which different alternatives are rejected at different points in time. First there is a sorting amo

OBJECTIVES:: Individuals with chronic pain often report increased pain sensitivity compared to pain free individuals, so it is crucial to determine if and how different pain characteristics influence or interact with pain sensitivity. An alternative to experimental pain sensitivity testing is the self-reported pain sensitivity questionnaire (PSQ), that captures pain sensitivity in various body are

Ecotourism is the concept of traveling responsibly to natural areas where the environment and the well-being of the local people are sustained, where the economic profit is reinvested in the area and where knowledge is communicated to decrease visitor impact and maintain the local environment. Ecotourism is the fastest growing segment of the global tourism industry and therefore it is important to

This research aims to bring a better understanding on the challenges of the current education policy in Ethiopia. The current education policy in Ethiopia has been developed to bring a desirable quality education, yet education quality in Ethiopia is getting worse. Here one can assume that there are several factors contributing to the education policy gaps which quensiquently end up in low educati

Lunds Klimatallians har ambitioner att hjälpa sina medlemmar arbeta mot en hållbar utveckling och letar efter nya metoder för att förbättra sin insats. Lunds Klimatallians är en organisation som startades i initiativ av Lund Kommuns miljöstrategiska enhet i syfte att bidra till Sveriges genomförande av FN:s klimatmål. Målen ska leda världen mot en hållbar utveckling men i dagsläget finns hållbarheLund's Climate Alliance was initiated 2010 by the municipality of Lund, in southern Sweden, to support local climate adaptation and mitigation efforts. The purpose of this paper is to investigate what each member of Lund's Climate Alliance believes will be necessary to realize sustainability goals particular to their organization in the future. The study thereby points to new topics, activ