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In the present work a detailed kinetic soot model is applied to study the formation and oxidation of soot particles in laminar premixed and turbulent non-premixed flames. The soot model used in this study is based on a detailed description of the chemical and physical processes involved in the formation of soot. In the first part of the study the soot model is extended to include the formation of
Background: B-vitamins are essential for one-carbon metabolism and have been linked to colorectal cancer. Although associations with folate have frequently been studied, studies on other plasma vitamins B2, B6, and B12 and colorectal cancer are scarce or inconclusive. Methods: We carried out a nested case-control study within the European Prospective Investigation into Cancer and Nutrition, includ
Plant cells carry Ca2+ ATPases to maintain the low resting level of cytosolic Ca2+ (0.1-0.2 µM) found in all eukaryotes. Plant Ca2+ ATPases are mainly located in the plasma membrane, the endoplasmic reticulum and in the vacuolar membrane, and consequently large Ca2+ gradients are created across these membranes. The Ca2+ gradients are used by the cell to transmit information in a variety of physiol
Popular Abstract in Swedish Den enorma variationen av beteenden och utseenden som återfinns i djurriket har i alla år fascinerat och länge förbryllat biologer. Rovdjurens skoningslösa utgallring är en av de stora drivkrafterna bakom evolutionen av alla dessa karaktärsdrag. Rovdjuren är såklart även en viktig strukturerande kraft i sötvattensmiljöer och har där lett till utvecklingen av mängder av The varieties of prey phenotypes that have been revealed in nature are vast and many of these phenotypes are the result of the selective force that predators have had on prey traits in the past. Even within species and populations we see variations due to both differences in the selection forces they live under but also due to individual trait variation. In this thesis I investigate both the direc
Popular Abstract in Swedish El-avfall (avfall från elektriska och elektroniska produkter) har under det senaste årtiondet blivit ett växande miljöproblem också i de mindre rika länderna (icke-OECD länder). Informell återvinning i u-länder har lett till att giftiga ämnen, som t.ex. bly och kvicksilver från tv-apparater, PVC från sladdar och bromerade flamskyddsmedel från plastkomponenter, har läcktWaste electrical and electronic equipment (WEEE) has become a salient issue in non-OECD countries. With a growing awareness about serious damages to the environment and human health from a lack of safe treatment and recycling of WEEE, there has been a search for policy responses in several of these countries. This research finds that extended producer responsibility (EPR), a policy principle that
Popular Abstract in Swedish Denna rättssociologiska studie handlar om tvångsomhändertagna missbrukares rättssäkerhet under tiden i vård. Författaren undersöker begreppet rättssäkerhet i förhållande till tvångsvårdens verkställighet på så kallade LVM-hem i syfte att finna en begreppsdefinition som är operationaliserbar vid studier av rättssäkerhetens upprätthållande. Med utgångspunkt i resultaten Compulsory treatment and care is regulated by the Care of Alcoholics and Drug abusers Act (Lag (1988:870) om vård av missbrukare i vissa fall, LVM). The regulation's main purpose is to motivate persons with addictive problems to voluntarily participate in the treatment of their problems. The compulsory care shall continue for a maximum period of six months in special treatment centres (the so-call
Popular Abstract in Swedish Äldre personer som erhåller permanent hjälp i sitt dagliga liv har ökat i takt med att livslängden ökat. Många äldre personer kommer troligen framöver att erhålla hjälp i sitt ordinära boende, eftersom den kommunala vården och omsorgen framför allt inom särskilt boende har minskat i omfattning i förhållande till antalet äldre över 65 år. Svensk policy strävar mot att alThe aim of this thesis was to investigate self-reported diseases and complaints, quality of life (QoL), help received with activities of daily living among older people and in relation to who provided the help, and in comparison with those without ADL help. The aim was also to investigate older people’s experiences of receiving help. Data were collected using postal questionnaires in two populatio
The beach topography change in the nearshore zone may be induced by natural phenomena such as wind, wave, storm, tsunami, and sea level rise. However, it can also be caused by man-made structures and activities, for example, groins, detached breakwaters, seawalls, dredging, and beach nourishment. Therefore, understanding the beach topography evolution in this zone is necessary and important for co
Xylanases without contaminating cellulases are produced by a wide variety of aerobic bacteria and fungi but anaerobic organisms producing such enzymes are rare. Clostridial species viz., Clostridium beijerinckii LU-1, C. acetobutylicum LU-1, C. butyricum and C. bifermentans LU-1 isolated from rumen produced xylanase (E.C. 3.2.1.8) of 1.5-4.2 U/ml on oat spelt xylan as sole carbon source. Cellulose
Kinetics and equilibria for the formation of a 1:1 complex between palladium(II) and chloroacetate were studied by spectrophotometric measurements in 1.00 mol . dm(-3) HClO4 at 298.2 K. The equilibrium constant, K, of the reaction Pd2+ + HL reversible arrow PdL+ + H+ was determined from multi-wavelength absorbance measurements of equilibrated solutions at variable temperatures as log(10)K (298.2K)
Objective: The authors sought to clarify the sources of parent-offspring resemblance for drug abuse, alcohol use disorders, and criminal behavior, using a novel genetic-epidemiological design. Method: Using national registries, the authors identified rates of drug abuse, alcohol use disorders, and criminal behavior in 41,360 Swedish individuals born between 1960 and 1990 and raised in triparental
Popular Abstract in Swedish Vid tillagning av kött, och framför allt stekning och grillning, bildas mutagena ämnen i stekskorpan. Dessa ämnen benämns heterocykliska aminer. Flera epidemiologiska studier har visat ett samband mellan uppkomsten av cancer och intaget av heterocykliska aminer, medan några studier inte finner något samband. Ämnena har också visat kunna utveckla tumörer och cancer i djuCommonly cooked meat dishes contain heterocyclic amines (HAs) at ng/g levels. HAs are animal carcinogens, form DNA adducts in human tissues, and have been associated with increased risk of cancer in epidemiological studies, and it is thus recommended that human intake be decreased. The aim of this investigation was to find ways of modifying cooking practices to reduce the formation of HAs. Various
In this paper, we study activity on Twitter in relation to the Swedish political festival Almedalsveckan, a week-long event where political parties, interest organizations, corporations and other actors for decades have gathered on the island of Gotland to discuss politics and public affairs. In 2018, a total of 4311 events (speeches, seminars, debates etc.) were arranged by 1929 separate actors a
This paper presents in some detail findings and experiences gained from a new course entitled “Innovation Engineering” (IE). This course is offered in the Technology Management Programme (TM) at Lund University, Lund, Sweden. The incentive for developing the new course was the need for a more integrated and practical approach where technical, customer and application problems from reality confront
The workshop will focus on what first-year students to higher education needs to be successful and how a peer learning programme might address those needs. (~5 min for introduction)The workshop will start with a brainstorm session where participants in small groups will share thoughts and ideas on the question (~20 min for activity): “What would you like to affect with your new students? Provide s
The aim of this thesis is to the understand how firms engage in exporting, particularly in consideration of three aspects—product type, past trade experience, and investments in innovation activities. It consists of one introductory chapter and three independent papers relating to determinants of firms’ exporting. Chapter 2 investigates the distance effect on the exporting of homogeneous and diff
Popular Abstract in Swedish En av dagens största utmaningar är de stadigt ökande utsläppen av förorenande avgaser och drivhusgaser. Den största delen av dessa föroreningar kommer från förbränningsanläggningar och fordon. För att kunna minska utsläppen måste man förstå förbränningsprocesserna, och hur man kan kontrollera förbränningen. Utmaningen är att förbränningprocesser är mycket komplexa. Det To deal with complex physical and chemical processes in reactive systems, such as combustion processes, it is necessary to find methods that simplify modelling in such a way that it becomes both more comprehensible and practically useful. In the work reported here a method for automatically reducing chemical reaction mechanisms has been developed for use in computer simulations of various combusti
Eco-roofs are becoming popular for aesthetic reasons and also as units of stormwater systems. It is thought that such roofs with soil cover and vegetation reduces the total runoff, the peak flows and improves the quality of the roof water. Here are reported investigations of runoff from thin, 3-4 cm soil, extensive green roofs with sedum-moss in southern Sweden. The two-year study was performed on
Aktivt kol har identifierats som en av de mer effektiva metoderna när det kommer till att avlägsna organiska mikroföroreningar (OMF) från avloppsvatten. Aktivt kol är ett poröst material med stor ytarea som kan adsorbera andra ämnen. Det är inget som existerar naturligt utan behöver framställas. Framställningen kan ske från i princip vilket material som helst som har en hög kolhalt. En stor del avActivated carbon has been identified as one of the more effective methods of removing organic micropollutants (OMP) from wastewater. Activated carbon is a porous material with a large surface area that allows adsorption of other substances. The material does not exist naturally and therefore has to be produced. The production can be done from any carbon-rich material and today the precursor is mai
Background As a part of the Service Organization’s earlier initiated and at the moment on-going project; “A more efficient Service Organization”, daily management has been identified as playing a major part. The starting-point for this has been to gain insight into how the Service Organization is actually performing and how it would be possible to measure, follow-up and visualize this performance.
