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Populärvetenskaplig sammanfattning Evolution av stabilitet i ett rovdjur-bytessystem För att göra en matematisk modell av hur rovdjur och byten växelverkar med varandra ställer man upp varsin ekvation för populationernas tillväxthastighet. Dessa beskriver hur rovdjuren och bytena beror av varandra och tiden. Eftersom rovdjuren är beroende av att äta byten för att överleva påverkar de bytespopulaAbstract This master's thesis aim to see if fluctuations in the environment can make a stable predator-prey system naturally evolve into an unstable system. In the paper “Prey adaptation as a cause of predator-prey cycles” (Evolution, 1997), Abrams and Matsuda uses numerical methods to investigate the stability properties of a predator-prey system and looks at the effect that the unstable pop

Being professional in a nonprofit organisation Date of the seminar: May 30 2012 Course: BUSN49 Degree Project in Managing People, Knowledge and Change – Master level Authors: Ingrid Appelberg, Emilia Bobeck-Leulier, and Erik Pålsson Supervisors: Anna Pfeiffer and Helen Nicholson Keywords: Identity, nonprofit, NPO, professional, identification, understanding Thesis purpose: The purpose of thi

Abstract This is a diploma work in industrial design by Fredrik Hyltén-Cavallius. In this project my goal was to find a product that could make the ancient fire fit better into our modern homes. I started out by looking at fire related products such as stoves and barbecues on the Swedish market. Through several interviews I also looked more closely into a couple of heat related technologies such a

Macroporous cryogels for capturing cisplatin were synthesized by cryogelation polymerization of methacrylic acid and 2-hydroxyethyl metacrylate. The cryogel materials exhibited good mechanical property, high swelling ratio and high affinity for cisplatin, with an adsorption capacity of up to 150 mg cisplatin per gram of cryogel. The correlation between the capacity of the cryogel and the monomer c

BACKGROUND: Spatial epidemiological analyses primarily depend on spatially-indexed medical records. Some countries have devised ways of capturing patient-specific spatial details using ZIP codes, postcodes or personal numbers, which are geocoded. However, for most resource-constrained African countries, the absence of a means to capture patient resident location as well as inexistence of spatial d

En främre korsbandsskada i knät är vanligt förekommande bland fysiskt aktiva personer inom sporter som innehåller vridningar, inbromsningar och snabba riktningsförändringar, såsom handboll och fotboll. Skadan kan exempelvis leda till en instabil knäled, försämrad funktion i vardagliga och idrottspecifika aktiviteter, försvagade lårmuskler, försämrad rörelsekvalité och nedsatt självskattad funktionRupture of the anterior cruciate ligament (ACL) is a common knee injury among young physically active populations. The injury results in impaired physical functions, such as joint instability, limitations in daily activities and sport-specific activities, and worse movement quality, e.g., altered postural orientation. Postural orientation is defined as the ability to maintain alignment between bod

Rationale: The topic of sparse representation of samples in high dimensional spaces has attracted growing interest during the past decade. In this work, we develop sparse representation-based methods for classification of radiological imaging patterns of breast lesions into benign and malignant states. Methods: We propose a spatial block decomposition method to address irregularities of the approx

Whole-genome sequencing projects are increasingly populating the tree of life and characterizing biodiversity1–4. Sparse taxon sampling has previously been proposed to confound phylogenetic inference5, and captures only a fraction of the genomic diversity. Here we report a substantial step towards the dense representation of avian phylogenetic and molecular diversity, by analysing 363 genomes from

HQC is an IND-CCA2 KEM running for standardization in NIST’s post-quantum cryptography project and has advanced to the second round. It is a code-based scheme in the class of public key encryptions, with given sets of parameters spanning NIST security strength 1, 3 and 5, corresponding to 128, 192 and 256 bits of classic security.In this paper we present an attack recovering the secret key of an H

The purpose of this article is to empirically investigate the present state of the performance measurement systems (PMS) at 7 sites of 6 different large Swedish manufacturing companies. The methodology has both a bottom-up and a top-down perspective. Important findings are that the PMSs are very similar in how they function but differ a lot in what is measured.

Background: Recurrent severe Dupuytren contracture of the small finger's proximal interphalangeal (PIP) joint is a difficult problem. Further surgery carries high risk of complications and poor outcome. Patients are often offered finger amputation. We have devised a novel surgical procedure consisting of middle phalanx monoblock resection and ligament reconstruction to create a new functioning int

Despite the fact that the laser-cooling method is a well-established technique to obtain ultracold neutral atoms and atomic cations, it has rarely if ever been applied to atomic anions due to the lack of suitable electric-dipole transitions. Efforts of more than a decade have until recently only resulted in La- as a promising anion candidate for laser cooling, but our previous work [Tang et al., P

Organizations interact with their stakeholders to a large degree through social media such as Facebook, Instagram, Twitter and YouTube ( Bellucci & Manetti, 2017). There are indications that there is an increase in the use of emotional language in organizations’ external communication in social media over time, since this is thought to generate more stakeholder engagement (Weinryb et al, 2021)

Proteins evolve under a myriad of biophysical selection pressures that collectively control the patterns of amino acid substitutions. These evolutionary pressures are sufficiently consistent over time and across protein families to produce substitution patterns, summarized in global amino acid substitution matrices such as BLOSUM, JTT, WAG, and LG, which can be used to successfully detect homologs

Background: There is an evident discrepancy between need and provision of evidence-based return-to-work (RTW) interventions in existing mental health services. Online dissemination of evidence-based interventions is presumed to reduce this gap. However, there is almost no knowledge available on perceived acceptability of digital RTW interventions among service users, which are factors that might i

Recent works on three-planet mean motion resonances (MMRs) have highlighted their importance for understanding the details of the dynamics of planet formation and evolution. While the dynamics of two-planet MMRs are well understood and approximately described by a one-degree-of-freedom Hamiltonian, little is known of the exact dynamics of three-body resonances besides the cases of zeroth-order MMR

A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H, is performed using a data sample corresponding to an integrated luminosity of 36.1 fb−1 from proton–proton collisions at s=13 TeV recorded in 2015 and 2016 by the ATLAS detector at the Large Hadron Collider. The search considers the Z boson decaying to electrons or muons and the H boson into a pa