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ECG is a method used in diagnostics and monitoring of the heart. The ECG measures the electrical activity between two or more predetermined positions on the body surface. These ECG signals might be disturbed by surrounding magnetic _elds, which might induce an interference into the signals. A tram passing by an ECG equipment has the possibility to induce interference into the ECG signals, due to c
Tidigare forskning om motivation vid lärande har tenderat att fokusera på attributioner (de tolkningar elever och andra gör av orsaker till framgångar och misslyckanden) självuppfattning, målorientering och elevers autonomi. Denna avhandling syftar dels till att beskriva bakgrunden och skolgången för de elever som går på gymnasiets estetiska programs musikgren, dels till att mäta den motivation deIn previous studies research on motivation in education has tended to be focused on attribution (perceived causes of success and failure), self perception, goal orientation and autonomy. This thesis aims to describe the background and schooling of music students and to measure their motivation for music education. Motivation is viewed as a cognitive process, which influences learning through achie
Popular Abstract in Swedish Ny innovativ processdesign har resulterat i två processer som kan göra tillverkningen av förnyelsebara plaster och bränslen konkurrenskraftiga mot dagens fossila alternativ. Den nya designen har gjort vissa processteg upp mot 40 gånger så effektiva som med dagens teknik. Vikten av att ställa om dagens samhälle, som till stor del är beroende av fossila resurser, till eIt is important to replace fossil resources such as oil, coal and natural gas with renewable raw materials for the production of materials and fuels in order to reduce environmental impact. Furthermore, these raw materials should preferably be residues, e.g. agricultural or forest residues, in order not to compete with the production of human food and animal feed. High molecular weight arabinoxyla
Popular Abstract in Swedish Under de senaste två decennierna har transplantation av embryonal vävnad från ventrala mesencephalon, mitthjärnan, utvecklats till en möjlig terapi för Parkinson’s sjukdom. Ju bättre transplantatet återställer den dopaminerga neurotransmissionen, desto större blir den motoriska förbättringen hos patienten. Dessvärre dör över 90% av de dopaminerga nervcellerna under tranOver the past two decades, grafting of embryonic nigral tissue has developed into a feasible therapeutic strategy for Parkinson's disease (PD). It has become apparent that the degree of restoration of dopaminergic neurotransmission by the transplanted cells is highly correlated to the symptomatic relief. However, the efficacy of the treatment is still far from optimal: More than 90% of the grafted
Popular Abstract in Swedish Kloning är inte enbart ett sätt för genetiska ingenjörer att framställa identiskt lika får. Det är framför allt ett naturligt förökningssätt för många djur och växter. Bladlöss, björnbär och backlök är tre exempel på vanliga organismer som förökar sig genom kloning. Enligt gängse evolutionär teori är kloning – eller asexuell reproduktion – ett effektivare sätt att produEvolutionary theory predicts a disadvantage to sexual reproduction. This manifests itself either by the higher growth rate of asexual females in a dioecious species, or by the higher transmission rate of a gene conferring asexual female function to its carriers in a hermaphrodite species. The disadvantage to sexual reproduction may be as high as two-fold provided all else is equal. This phenomenon
Brämhults Juice AB is a Swedish company producing fresh juice for the Scandinavian market. Fresh juice is rich in taste but has limited durability and must be treated with special care throughout the whole supply chain. Not only will the quality of the product be affected if mistreated, but there are also contamination risks meaning that people actually could get sick, although the risk is very sm
Popular Abstract in Swedish Kroppens fettceller innehåller en energidepå i form av s.k. triglycerider, en glycerolmolekyl med tre påkopplade fettsyror, som kan användas vid behov (fasta, arbete och dylikt). För att kroppens andra celler ska kunna använda fettdepåerna som energikälla, måste fettsyrorna frikopplas från glycerolmolekylen och skickas ut ur fettcellerna till blodet. Fettsyrorna transpoThe primary role of hormone-sensitive lipase (HSL), an 84 kDa enzyme of 768 amino acids (in the rat protein), is to hydrolyse stored triacylglycerols in adipocytes of white adipose tissue. Catecholamines and insulin regulate lipolysis through cellular signalling. A major target of this regulation is HSL, activated through phosphorylation by cAMP-dependent protein kinase (cAMP-PK). Insulin activate
Popular Abstract in Icelandic Landnám á jökulskerjum Plöntur hafa lengi verið taldar nauðsynlegar til að dýr geti numið land en þessi sýn er að breytast því rannsóknir hafa sýnt að smádýr nema oft land á undan plöntum. Landnám bæði plantna og dýra getur hafist um leið og nýtt land myndast en til að landnám takist þurfa nokkrir þættir að fara saman. Þau verða að komast á staðinn og þegar þangað er
This book discusses the history of aviculture and the cultural extent of keeping and raising birds in captivity for pleasure, companion, ornamental reasons, religious causes or various economic or practical purposes. Since the dawn of mankind, humans have kept birds in captivity. Several species are truly domesticated, while others have simply been bred in captivity for many generations. Today bir
Popular Abstract in Swedish Denna studie visar betydelsen av ökad idrottsundervisning, fysisk aktivitet och extra motorisk träning i skolan. Undersökningen är en delstudie i Bunkefloprojektet - en hälsofrämjande livsstil. Interventionen består i att två årskullar elever har en obligatorisk rörelselektion varje skoldag. Motorikobservationer med MUGI observationsschema som underlag genomförs varje åThe aim of this thesis is to study effects of an extension of physical education/activity and motor training on motor skills, attention and cognition during a period of three years. Another aim is to develop a test, MUGI observationsschema, which could be useful in charting motor skills of school pupils. The study has two intervention groups (n=152) that have physical activity and motor training o
The changing forms of governance stemming from the rise of New Public Management (NPM) and New Public Governance (NPG) have brought about significant changes in the relationship between the public and private sectors (Christensen and Lægreid 2007; Torfing and Triantafillou 2013). Not only have we witnessed a gradual increase in the involvement of private actors in the provision of public services,
Spatial Data Infrastructure is one of the requirements for sustainable development and many countries worldwide are at different stages of implementation. Several researchers have shown that SDI has helped governments to recover funds due to reduction in duplication of efforts and also has increased efficiency in resource management and planning.Tanzania as other developing countries, is at initia
Cleanliness has seen a rapid increase in both developed and developing countries, along with a parallel rise in not only water and energy but also cleaning products consumed. Water and energy supply as well as dealing with waste are environmentally critical in securing a sustainable future. This dissertation aims to contribute to sustainability by providing new insights around how conventions chan
Popular Abstract in Swedish Kassava är ett stärkelserikt livsmedel, jämförbart med potatis. Det produceras främst i jordens tropiska regionerna och är ett viktigt livsmedel i Afrika söder om Sahara. Kassava har stora fördelar som gröda eftersom avkastningen är hög, den har god motståndskraft mot sjukdomar, den växer även på mager jord och den är motståndskraftig mot torka. Emellertid, kassava har Cassava (Manihot esculenta Crantz) is an important and cheap source of carbohydrate in tropical regions, particularly in Sub-Sahara Africa. Cassava as a human food is a good source of energy as it has a comparable high energy density of about 610 kJ/100 g fresh root. The crop has growth advantages and production can take place in soil where other crops such as maize, sorghum and sweet potatoes can
The implementation of anaerobic digestion is important in the concept of sustainable development, especially regarding the environmental benefits. Biogas is produced when organic matter is degraded by microorganisms under oxygen-free (anaerobic) conditions. Biogas production occurs in nature where oxygen is absent; in rice fields, landfills, sediments, the intestinal tract of animals, etc. The adv
Abstract Fatty acids mobilized from triacylglycerol stores are a major energy source in humans. Mobilization occurs through the consecutive action of three lipases: adipose triglyceride lipase (ATGL), hormone-sensitive lipase (HSL) and monoglyceride lipase (MGL). Whereas ATGL and MGL only hydrolyse tri- and monoacylglycerols, respectively, HSL has a broad substrate range and hydrolyses cholesterol
Popular Abstract in Swedish Fjärrvärme är ett centraliserat uppvärmningssystem där varmt vatten distribueras i ett rörnätverk och används främst till byggnadsuppvärmning och för att värma varmvatten. Fjärrvärme finns i alla länder på norra halvklotet men har störst marknadsandel i Norden och Baltikum. I Sverige används fjärrvärme för att värma c:a 60% av all byggnadsyta. Två stora fördelar med fjäRenewable energy sources dominated the world energy supply until the beginning of the 20th century, when fossil energy became the dominant energy source worldwide. Today, fossil fuels contribute to over 80% of world energy supply. But there are two major reasons why fossil energy use has to stop. First, fossil energy is limited and will not last forever. Second, emissions of carbon dioxide change
