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7860 Uppsatser om Density functional theory - Sida 13 av 524
Effekt på mark och gröda av olika bearbetningssystem, med och utan CTF
Swedish agriculture has gone through big changes in the latest 60 years. The farm sizes have increased, which has led to raised tractor and machinery sizes and therefore
increasing problems with soil compaction. A method to reduce these problems is to implement controlled traffic farming, CTF. All field operations are then concentrated
to specific tracks by using GPS guidance.
The aim of this work was to study how the tillage regime, with or without CTF, affects the soil, with the main focus on macroporosity. In Säby close to Uppsala, and Alnarp close to Malmö, randomized block trials has been carried out, and the data has mainly been taken from these trials.
Grammatik undervisning : Studie av grammatikens roll i den tidiga språkinlärningen
This essay aims to generate understanding for todays grammar teaching in the early grades.Through base in previous research, I intend in this work to seek understanding of what affects the grammar development and its impact on education. I investigate in this essay teacher's approach to grammar and how it affects the incidence of grammar teaching.Work empiricism consists of qualitative research interviews and a survey with the intention to present a broad picture of grammatical meaning. Regarding to the informants that are involved in the investigation, I have deliberately chosen teachers from different generations to find reflections of their own education and how itinfluenced their view of grammar. My study shows that teachers acquire greater part of teaching about languagefunctional side compared to the form of the language. The teachers who participated in the survey indicated that the language functional side priority by reason that the more responds to students' learning needs and promotes a desire to learn through meaningful for the student.
Mesatorrhalt
AbstractDegree thesis Solid content in Lime Mud By Andre Flodin Process operator program ? Umeå University 17/6 ? 2014 Pages: 21A thesis was made on Billerudkorsnäs production unit in Karlsborg where lime kiln in the causticising department of chemical recovery plant does not meet the required production. Causticising department is the final step in the chemical recycling unit. There, the filtered green liquor is mixed with lime to recover the cooking chemicals used in the pulp factory. The cooking liquid is called white liquor.
Det är ju logiskt, men det är väldigt ologiskt om man jämför med allt annat logiskt.? - En studie om elevers syn på ämnet Gehörs- och musiklära.
Title: "It is logical, but not logical at all compared to every other logical thing." - A study about how students in upper secondary school reflect about their studies in Pitch and music theory.Pitch and music theory is a compulsory subject for music students in the art programme of upper secondary school of Sweden. The aim of the subject is to develop the students? knowledge about music theory concepts in order to help them play and create music on their own. The aim of this paper is to discuss how students talk about ear training and music theory. Qualitative group interviews were carried out with two student groups from the first and second year of the upper secondary school.
Målarens musik - Harmoniska metoder för modal musik
Title: Strokes of music - Harmonic methods for modal music.The aim of this paper is to develop harmonic methods for music based on different modes or scales. It begins with an exploration of the music of Claude Debussy and then goes on with other methods and scales and also includes an analytic chapter and results at the end. With "strokes of music" I mean a musical technique, which has some parallels to how a painter can choose colors and palettes to express what he is looking for ? the freedom to choose between colors and palettes, or in music tones and scales ? to move between them by sudden or leading modulations, from the diatonic scales with alternative formations, to the symmetric spheres, to the melodic pentatonic scales and other alternative new formations, using plateauic solutions or chords in diatonic, functional and non-functional progressions. A scale can be used as tonality or subordinated and the harmonic rhythm can be both with no movement and fast paced.Syftet med detta dokument är att utveckla harmoniska metoder för musik som bygger på olika modus eller skalor.
y måste bero av x ? gymnasieelevers förståelse av det matematiska begreppet funktion
Objective: The aim of the study is to describe pupils' understanding of the mathematical concept of function. How do pupils define the concept of function? What images of the concept of function evoke when they solve tasks, which involve identifying and constructing functions?Theory: A student's thinking about a mathematical concept depends on more than just the formal definition of the concept; therefore Tall and Vinner introduce the term concept image to describe the role cognitive structures play when students learn about concepts. The cognitive structure includes all mental images, associated properties and processes that an individual associates with a given concept. According to Sfard, an individual's understanding of mathematical concepts may have different character: an operational conception, where a concept is conceived as a process and a structural conception, where the given concept is conceived as an object, that is, as a whole.Method: 16 pupils at the Science Program at two different upper secondary schools inSweden answered a questionnaire on the mathematical concept of function.
Vuxenliv med funktionshinder : En studie om unga vuxna med lindrig utvecklingsstörning
This study focuses on young adults with mild mental retardation and how their early adult life is a few years after leaving high school. They have grown up in a society where the view on mentally disabled has undergone big changes. Political decisions regarding handicapped, laws, official principles and social reforms have been dominated by the prinziple of normalization.The purpose has been to describe how the young adults themselves experience their life. The questions were: How is the every day life for young adults with mild mental retardation? Do they have asset to community support in order to reach as normal life as possible? How satisfied are they with their life?The investigation is a quality study through interviews with four young adults and their parents.
"Evolutionen är ett syfte" : en studie av elevers världsbilder angående evolutionsteorin
In this thesis swedish students? worldsviews, in relation to the theory of evolution, were studied. Thirty students from two different schools and cities took part in the survey and four students were later chosen for interviews. The results showed that there are many different types of students and categories in this matter. The study also showed that for some religious students, accepting the theory of evolution was not difficult thus showing that religious students can both believe in God and in the theory of evolution..
Hur ska vi komma vidare? : frågor rörande neolitiseringen i Sydskandinavien
This paper deals with the question of neolithisation of Southern Scandinavia. The main goal is to give an overview of three theories regarding how agriculture and livestock breeding was introduced to the Southern Scandinavia. These are as follows: the immigration theory, the socio-economic theory and the historical explanation theory. Furthermore it is investigated which theory has the most probably support in material culture. There are obvious difficulties in interpreting the archaeological material.
Brunnsviken : Utvärdering av åtgärder för förbättrad vattenkvalitet
Periods of hypoxia are a recurring issue in Brunnsviken. Main factors that trigger hypoxia in Brunnsviken are eutrophication due to anthropogenic emission of nutrients, stratification in the water column due to salinity and temperature differences that prevents mixing and a sill inlet that prevents water exchange. As an attempt to improve the oxygen levels, bottom water is pumped from Brunnsviken causing aerated surface water to flow back into the basin. The objective of this Master?s thesis was to study the change in dissolved oxygen levels due to pumping.
Finansiell teori i praktiken : En studie om finansiell teori och dess förmåga att förklara skuldsättningsgraden i små börsnoterade bolag
I denna studie testas tio hypoteser som relaterar till finansiell teori för att se hur väl teorin kan förklara skuldsättningsgraden i små börsnoterade bolag. De teorier som testas är avvägningsteorin (trade-off theory), hackordningsteorin (pecking order theory) samt teorier relaterade till asymmetrisk information och agentkostnader. Testen genomförs med multipel linjär regressionsanalys och de undersökta bolagen är samtliga bolag med färre än 200 anställda på tre av de mindre börslistorna i Sverige. Resultatet visar stöd för åtta av de tio undersökta hypoteserna och är i flera avseenden tydligare än i tidigare studier som testar onoterade små bolag eller ett bredare urval av bolag..
"Elevhälsan är en trygghet för oss alla" : Uppfattningar om hur skolan kan arbeta vid misstanke om att barn far illa.
The aim of this study is to understand and describe school staff´s view on the legal obligation to report child maltreatment. With this approach I will get a better understanding how child maltreatment can be caught up in the Swedish community. Previous research shows that school is one of the authorities who report most children to social services. Previous research indicates that cooperation between school and social services reduces the time of the investigations, and gives a better understanding of what is to be reported. The result shows that a functional cooperation between school staff´s as well as between school and social services is important for children to be caught up in the community.
Effekten av hormonsubstitution hos äldre män med åldersrelaterad testosteronbrist: en litteraturgranskning
Background: Testosterone is the most important androgenic hormone in the male. Aging is closely associated with reduction of serum testosterone which can lead to reduced muscle mass, muscle strength, bone density, and depression. These symptoms may be counteracted by administration of testosterone. Objective: The purpose of this study was to examine the effects of hormone replacement in men with age-related testosterone deficiency. Method: We performed a systematic review using Randomised Controlled Trials (RCT).
Mystiken kring styrelsearbete - skillnader i styrelsearbetet i ett litet börsnoterat bolag och ett litet onoterat bolag
New laws and recommendations within corporate governance during the last years have affected the way board of directors work. The board is said to have and fulfill three roles: a control role, a service role and a strategy role. These roles could be understood by three theoretical theories: the agency theory, the resource dependence theory and the stewardship theory. The purpose of this study is to investigate whether, and if so how, the board work differs between two small firms based on these roles, given that one of the firms is a publicly listed firm and the other is a privately owned firm. Using a qualitative case study as research method we find that the board work differs between the two companies when it comes to these roles.
Ligghallsareans inverkan på beteenden hos högdräktiga ston i lösdrift :
SUMMARY
This pilot study tried to answer the question however the present animal welfare regulations
for horses regarding lying hall area requirements are adequate for horses older than
24 months. The study was carried out at one of the largest stud farms for standard bred
horses in Sweden. Mares in late pregnancy with an initial mean age of 10 years was used
in a behaviour study. The influence of varying space per animal in a loose-housing system
on behaviours like the horses' lying hall use, standing, resting, moving behaviour and
threats was studied. The behaviour at three different horse densities ? 18 mares, 13 mares
and 8 mares (7.4 m2, 10.3 m2 and 16.7 m2 per mare, respectively) ? was recorded by use
of video.