Feed intake in dairy cows is regulated by a variety of factors influencing hunger and satiety. One of the regulation systems includes the short chain fatty acids produced during feed degradation in the rumen. Starch can be digested either in the rumen where short chain fatty acids are produced or in the small intestine where glucose is the end product. Since glucose does not have the same effect on satiety that short chain fatty acids have, the site of starch digestion might be an important factor that affects feed intake and milk production. The aim of this study was to investigate the effects of site of starch digestion on feeding behaviour (feed intake, consumption time, and eating frequency) and milk production. Because feeding behaviour is closely connected to the cows? environment, the study also included observations of behaviour. Three different feed rations were compared.

Equestrian sports and the interest in horses have existed for hundreds of years. It is only in the last thirty years the technological development have enabled closer studies of equine locomotion. The production of both soft- and hardware that manages to capture and analyze the fast movement of the horse has resulted in a large increase in locomotion research. Even though the interest in horses and the different disciplines they compete in is great, there is a small understanding in how the rider influences the movement of the horse in different types of training. There are several studies available where horses moving freely without the influence of a rider have been studied. What happens with locomotion and ground reaction forces when a rider and equipment are added is not well studied. The objective of this study was to investigate if there are any differences in the ground reaction forces between sitting and rising trot. The study contained seven horses. Six Grand Prix dressage horses and one dressage horse competing at intermediate level.

With gas prices persistently rising, electric and hybrid vehicles are getting more and more common and in recent years several new electric cars have evolved on the market. Although the energy consumption and low emissions are a huge benefit of the electric cars, they inevitably suffer from high prices, short range and time consuming recharging periods. To be able to withstand the competition it is important that electric vehicles not only can withstand general were and tare, but also the harsh conditions that ordinary cars is exposed to in daily usage. The purpose of this project is to develop a test methodology which replicate situations that could appear in daily usage of electric or hybrid cars and to understand the problems related to usage of electric cars in winter conditions. This paper also discusses the major differences between hybrid cars and electric cars.

In the process of making carton boards into Skoghall Mill, are great quantities of water being contaminated. This water has to be treated before it is possible to release into the recipient, Kattfjorden. One of the contaminations that is important to extract from the wastewater, is organic carbon (measured as TOC-total organic carbon) because microbiological breakdown can lead to the bottom becomig free of oxygen.The wastewater treatment at Skoghall Mill is done through an external wastewater treatment that is located at the factory. The biological treatment (aerated lagoon) is a 140 000 m3 water pool with surface aerator, which is give oxygen to the water. In the lagoon live microorganisms who performs the biggest part of the TOC-reduction.One problem with the lagoon is that the treatment of TOC is considerably worse during wintertime than during summertime.

The use of streaming media such as Spotify has increased rapidly in recent years. Although the consumption side of Spotify is well established with over 10 million users, the medium might provide new unexploited opportunities as an advertising channel. The purpose of this thesis is to increase knowledge about advertising through streaming media and in particular via Spotify. To contribute to such knowledge we have conducted a case study to investigate how Spotify can be used and serve as an advertising medium for a smaller firm, Hasseludden Yasuragi, so that it may reach its target group. To examine the medial effect, a quantitative as well as a qualitative study was carried out using the ARF Model as a basic framework.

The purpose of this thesis is to investigate the possibility to make small, cheap and ultra low power sensor platforms, connected in wireless networks for monitoring of home and industrial environments. The concept is based on ideas from our supervisor, Jerry Lindblom. The developed system consists of a generic platform for different sensors, a receiver and software. A GPRS module from RO Rollytech AB and a database from Gema Industri AB have been modified and used to demonstrate an example of a complete system. To the platform, it is possible to connect any resistive sensor and any sensor that can act as a switch.

This master thesis in economics discusses the time use of today as well as the observed trends in time use over the last 20 years in Sweden. This is done by analysing time-use and consumption data at the microeconomic level, i.e. by explaining individual behaviour given the economic assumption of a rational behaviour. We reach the conclusion that the value of time is an important explanatory variable concerning the rationality in that time is used differently by different individuals and in the changed use of time. Furthermore, other variables such as social norms and the process benefit of a certain activity, i.e.

The aim of this study is to map the consumption patterns of the poor. We also examine if loyalty can be created in this segment, and try to discover different types of poverty. This study is of great importance since the poor segment has been slightly overlooked in marketing research. Therefore we have also turned to other academic disciplines such as sociology, ethnography and consumer culture in order to analyze our empirical input. The study is abductive and we have in a qualitative and ethnographical manner conducted interviews in order to obtain information and reveal categories.

Starka samband har tidigare framkommit mellan den maximala styrkan i knäböj på två ben och sprintkapacitet rakt fram på varierande distanser men inte på sprintkapacitet i agility. Gemensamt för de flesta studier är dock att styrketesterna endast utförts på två ben.Syftet med studien var att undersöka korrelationen mellan maximal styrka i enbensknäböj i smith-maskin och sprintförmågan i löpningar, både rakt fram och med riktningsförändringar.Testgruppen bestod av 19 män (23,9 ± 2,5 år) med regelbunden träningserfarenhet av intermittenta lagsporter. Sprinttester gjordes på 5, 10 och 20 meter rakt fram samt ett zigzag agilitytest för att testa sprintkapacitet med riktningsförändringar. Enbensknäböj i smith-maskin genomfördes med stången på axlarna och ett djup på 110 grader vinkel mellan femur och tibia.Resultaten av studien visade på signifikanta korrelationer mellan den maximala styrkan i enbensknäböj och sprintkapaciteten på 5 och 10 meter samt i agility. När den maximala styrkan var relaterad till kroppsvikten hittades signifikanta korrelationer mellan 5 och 20 meter samt i agility.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Shopping for groceries often means that, as consumers, we travel to the grocery store ourselves, by ear, bike or on foot. At the store we pick out the groceries that we want, go the register and pay for them. During the last couple of years consumers in Sweden have been given the opportunity to let someone else select and transport the groceries to their home instead, so called home shopping. As this report is being written, the possibility to buy groceries this way is somewhat limited, but many forecasters believe that in the near future it will increase immensely. Because of the large volumes of groceries that are being transported, there is great transport work being done in the supply chain.

The question of excessive global energy use needs to be solved. All energy production and usage have negative environmental impacts, which are best solved by reducing energy consumption and by using energy more efficiently. A large part of the Swedish energy use is concentrated to the building sector and to reduce the total energy consumption real efforts need to be made to make buildings more energy efficient.The aim of this study was to investigate how energy is used in one of Göteborg University?s buildings and to find measures that can be taken to improve its energy efficiency. The chosen building Zoologen, is used for research and education.The main method of the study is computer simulations of the present building and of possible energy reducing measures to be made in the future.

SyfteSyftet med föreliggande studie var att undersöka genomförbarheten av en hög-intensiv träningsintervention efter knäplastikoperation samt hur knäplastikopererade personers självvalda gånghastighet, maximal vadmuskelstyrka, vadmuskeluthållighet och självupplevda symptom, smärta, ADL funktion och hälsorelaterad livskvalité påverkas av tidigt insatt hög-intensiv styrketräning av vadmuskulaturen.MetodFemton forskningspersoner randomiserades till en träningsgrupp (n=7), som utförde hemträningsprogram i form av hög-intensiv vadmuskelträning samt till en kontrollgrupp (n=8) som utförde samma rehabiliteringsprogram som träningsgruppen utan hög-intensiv vadmuskelträning. En testprocedur genomfördes 3 respektive 12 veckor efter knäplastikoperationen. Självvald gånghastighet mättes genom ett 30 meters gångtest, vadmuskeluthållighet mättes med ett standardiserat tåhävningstest på ett ben, maximal isometrisk vadmuskelstyrka mättes med hjälp av en isometrisk dynamometer och självskattad symptom, smärta, ADL funktion och livskvalité utvärderades genom Knee injury Osteoarthritis Outcome Score (KOOS).ResultatDenna studie påvisar viss problematik med följsamheten i träningsregim för båda grupperna. Båda gruppernas sammanslagna resultat uppvisade signikant förbättrad självvald gånghastighet, maximal vadmuskelstyrka och uthållighet över tid. Trots detta ökade träningsgruppen den självvalda gånghastigheten signifikant mer än kontrollgruppen över tid.

Syfte och frågeställningar: Syftet med denna studie var att undersöka de fysiologiska effekterna av kombinationsträning, innefattande styrketräning, contrast complex training (CCT) kombinerat med intervallträning i form av upprepade kortare sprintar (ca 6 s) (RSE) eller längre (30 s) högintensiva intervaller (HIIT) hos handbollsspelare i herrelit, under tävlingssäsong.Metod: Under 12 veckor, i tävlingssäsong, genomförde 15 elithandbollsherrar, utöver sin vanliga handbollsträning antingen RSE (n=8) bestående av 10 repetitioner av shuttle sprintar (2 x 15 m) med start varje minut och med passiv vila eller HIIT (n=7) bestående av 5 reps av 30-s all-out sprintar med riktningsförändringar. Båda grupperna genomförde ocksåCCT bestående av 3 set med 3 övningar (3 x knäböj 90 % av 1RM, 6 x jump squat med 50 % av kroppsvikten, 6 x dropp jump från 30 cm Pre- och posttesterna inkluderade jump squat (JS) (RFD (Ns/kg)), 5 jump for distance test (5JT) (m), 30m sprint (5m (s), 20-30m (m/s), repeated shuttle sprint ability test (RSSA) (RSA Bäst, Sämst, Tot (s) samt beräknat trötthetindexFI (%), Sdec (%)), 1 RM knäböj (koncentrisk) (kg/kg kroppsvikt), Yo-Yo intermittent recovery test (YYIRT 1)(m) and maximal syreupptagningstest (VO2max) (l O2/min, ml·kg-0.75·min-1). Resultat: Båda grupperna ökade signifikant maxstyrkan i knäböj, RSE gruppen (8,8 %) mer än HITT (7,4 %) (p<0.01). I motsats visade HIIT gruppen större förbättringar i rate of force development (RFD) (63,3 %) än RSE (56,3 %) (p<0,05). VO2max ökade signifikant och likartat i båda grupperna (~2%).