Hur ärvs blomdoft? Att lukta gott är inte bara viktigt för oss människor. I växternas värld är doft, eller de kemiska doftsignalerna, livsviktigt för att kunna locka till sig pollinatörer eller avskräcka fiender. Vi vet redan mycket om hur insekter reagerar på kemiska signaler från växter och hur doft varierar mellan olika växtarter, men fortfarande väldigt lite om hur blomdoft ärvs inom växtpopuOne of the main challenges in evolutionary ecology is to identify the factors and agents that drive diversification. Two of the most diverse groups of organisms on earth are plants and insects, and evidence strongly suggests that the diversification of both groups is driven by the interactions between them. One fruitful way for understanding how these interactions evolve and diversify is to identi

Syftet med examensarbetet är att studera ledarskapet och ledarens roll i förändringsarbetet mot ett klimatneutralt byggande. I studien utreds vilka faktorer som driver förändringsarbetet mot ett klimatneutralt byggande och hur miljöarbetet kan bli mer attraktivt för anställda i svenska byggföretag. Studien har utförts på ett fallföretag och ett av deras projekt i produktionsfasen. En kvalitativ mThe purpose of this master thesis is to study the leadership and the roll of the leader during a change in the process towards a climate neutral construction process. The study is aiming to find factors which affects the change process towards a climate neutral construction process as well as how the environmental work can become more attractive in projects. The study has been carried out as a ca

China’s rapid economic development has led to a continuously increasing energy demand and the country is the world’s biggest energy user as of today. The country accounts for around 23% of the global energy production, but 70% of the Chinese energy is generated with coal power and China is the biggest emitter of CO2 in the world. The Chinese government has set a couple of goals to reduce the count

Frågeställning: Syftet med detta arbete var att undersöka om interventioner baserade på ACT respektive buddhistisk meditation har en inverkan på psykologisk inflexibilitet, empati, medkänsla till andra, självmedkänsla samt modern rasism. Till detta hörde en explorativ frågeställning gällande eventuella skillnader i de båda metodernas inverkan på utfallsmåtten. Arbetet avsåg även undersöka hur utfa

The purpose of this project was to investigate the use of microfluidics for X-ray spectroscopy at MAX IV Laboratory. A Silicon and Glass chip was produced, and its suitability for carrying samples in solution was tested. Once the chip was prepared, and successfully integrated onto Balder beamline, X-ray analysis was carried out on a sample of FeCl3 (aq) flowing through the chip. This was contraste

Framtiden för verktyg på bibliotek Ett sätt att minska vår belastning på miljön är att dela saker med varandra. Att kunna låna verktyg och andra prylar på biblioteken - är det ett bra sätt att få fler att dela? Många säger sig vilja dela saker med andra men det är inte lika många som faktiskt gör det. Många av de initiativ för delande som finns idag bygger på delande mellan främlingar, men de flThe sharing of goods and services has a lot of potential in tackling the environmental consequences of consumption. Studies indicate that public lending has advantages over private individuals lending each other necessities. It is therefore important to investigate how public lending can be organised most efficiently. Some Swedish libraries provide tools and other things that are not typically ass

This thesis surveyed existing technologies and research on pedestrian detection systems using video as input. The purpose of the study was to investigate what such a software would need to produce to be relevant for the fire safety engineer in outdoor circulation- or egress applications. The thesis tested a newly developed detection software called Flowity. The software, developed by ÅF Digital So

Humant papillomvirus kanske du någon gång hört talas om. HPV, förkortningen som man vanligtvis benämner viruset med, är mest känt för sin olyckliga förmåga att orsaka hud- och könsvårtor på den mänskliga kroppen. För ungefär ett decennium sedan bevisades det att viruset även är en orsak till utvecklingen av en viss typ av cancer. Denna cancer, som utvecklas i vissa delar av huvudet och halsen, harHead and Neck Squamous Cell Carcinomas (HNSCC) are a heterogenous group of cancers formed in squamous epithelial cells. In a few HNSCC, the cancer is developed because of long-term viral infection. Carcinomas of the Oropharynx (OPSCC) have a high rate of infection of Human Papilloma Virus (HPV), where tonsils (TSCC) have the highest. The aim of this thesis was to evaluate differential expression b

Insekter är en essentiell komponent i många ekosystem. Rollerna som de har är viktiga, vilka inkluderar spridning av växters frön, pollinering och att vara en källa till näring för andra djur. Dock finns aspekter med insekter som innebär hot för människor. Exempelvis kräver malaria cirka 400 000 människoliv per år, en sjukdom som förs vidare av myggor. För att kunna bekämpa sjukdomar som malaria Using laser it is possible to measure the backscattered light from insects. The resulting signal can then be analysed in order to potentially determine the species of the insect. Estimating the fundamental wing beat frequency (FWBF) of insects is important in order do this classification of species, which is an area of research that has been explored previously. In this thesis, the relative phase

In this study, the extraction and isolation of xylan from milled oat hull materials was investigated. Alkali extraction by 2 M sodium hydroxide at 40°C overnight was applied. The yield of extracted xylan was 5%. The extracted xylan was isolated from the extraction mixture by ethanol (99.9%) after neutralization and its purity was checked, resulting in a66% pure product. The semi-purified xylan was

For a city and culture that excels at adding value to waste, Kisumu struggles with a systematic approach for solid-waste management. Food and animal wastes run rampant in the streets while families still cook for hoursevery day using harmful fuels like kerosene, charcoal and firewood. This project takes to heart the insight that if a solution isn’t affordable to those who need it the most — it’s n

Momentvektorering uppnås genom att manipulera bilens hjulhastigheter, i syfte att öka kurvhastigheterna och förbättra trafiksäkerheten. En dubbelkoppling på bakaxeln är en möjlig vektoreringsmetod för en bakhjulsdriven Formula Student-bil. Dubbelkopplingen gör att det inre hjulet kan glida och därmed skapa ett vridmoment kring bilens kropp i kurvans färdriktning. Målet med examensarbetet var att Torque vectoring for automobiles is used to increase cornering speeds and improve road safety by manipulating the car's wheel-speeds. One method of torque vectoring for a rear-wheel-drive Formula Student race car is using a dual-clutch to slip the inner wheel thus create a yaw moment during cornering. The goal of this thesis was to develop and design an electronic control unit to automaticall

This essay follows the repatriation process and debate concerning the return of the Paracas textiles from the Museum of World Culture in Gothenburg, Sweden to the National Museum in Lima, Peru. The essay uses mass media such as newspaper articles and radio segments to map the themes and problems that arise when one country asks for the return of cultural artefacts and the other country has to resp

Vår värld blir alltmer digital samtidigt som kunder blir alltmer kräsna. Mjukvaruföretag idag jobbar agilt och kämpar för att fokusera på kundvärde i en konkurrensintensiv bransch. Detta examensarbete presenterar aktiviteter som är viktiga för att effektivt samla in och integrera kundåterkoppling i SaaS-företag som arbetar B2B. Nuvarande företagsprocesser har kartlagts och analyserats utifrån exisEven though companies are aiming for an agile way of working, and by that mainly focusing on providing value to their customers, it is challenging to get accurate customer data. Software companies are struggling in effectively and efficiently integrating customer feedback in their development processes. The purpose of the study was therefore to describe and understand structured approaches whose p

The present master thesis was performed in cooperation with the company “Aventure AB”. The company’s R&D department envisioned a new yoghurt-based product able to decrease the blood glucose levels after a meal. The innovative characteristic of the product is due to the diet fibers of the barley grain, which is going to be incorporated inside the yoghurt. The preliminary experiments which were

“Cultural identity is closely linked to their ancestral lands. If they are deprived of them, by means of forced displacement, it seriously affects their cultural identity, and finally, their very right to life lato sensu...” (Sawhoyamaxa Indigenous Community v. Paraguay) In the last five decades a movement calling for the protection of indigenous peoples’ rights has precipitated in a wave of inte

In vehicles there are many issues involving the safety and performance. The safety issues are often regulated by governments, whereas the performance by the customer. One solution to both these issues is to take use of an all-wheel drive system, where a coupling engages and disengages driving axles when needed. Such a solution will, through added traction and stability, increase performance and sa

Studien ska visa eventuell skillnad i BHAR, 3 år - för börsintroduktioner på den nordiska marknaden med hänsyn till det relativa innehavet av tillgångsslag. Tidigare forskning som denna studie grundas på, studerar långsiktig prestation på andra marknader än den nordiska. Därutöver fokuserar den på att dra slutsatser kring andra förklarande variabler. Studien baserats på ett urval av totalt 213 noThe study should result in any potential differences in BHAR, 3 years for IPOs in the Nordic market, accounting for the different relative asset classes. Previous research on which this study is based, studies long-run performance in other markets than the Nordic. In addition, it has focused on drawing conclusions about other explanatory variables. The study is based on a sample of a total of 213

På den ryske botanikern Mikhail Semyonovich Tsvets gravsten står det "Han uppfann kromatografin, separerade molekyler men förenade folk". Hans metod för att separera molekyler används än idag - till exempel i detta arbete. Tsvets försöksuppställning bestod av en glascylinder fylld med kolsyrad kalk, samt en lösning som innehöll olika färgpigment från växter. En stund efter att han hälltAdenosine tetraphosphate, or Ap4A, is a nucleotide with very interesting proposed biological effects. Previous studies have indicated that blood glucose levels in mammals might increase in the presence of Ap4A, and that Ap4A might antagonize pancreatic ATP channels. In order to study these effects further, a reliable method of separating Ap4A from other nucleotides in biological samples is require