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89 Uppsatser om Reverse osmosis - Sida 4 av 6

Mobbning Maktspel mellan Mobbaren och Offret : En fallstudie som lyfter fram problemet och skolans kamp

Swedish students' knowledge of mathematics has deteriorated in recent years. Teaching of mathematics is therefore starting point in an ongoing discussion among researchers, school leaders, politicians, teachers and others, who all thinks they know best about how teaching should be designed to the greatest extent possible to raise students' proficiency levels in the subject. Teachers' practices have long been the focus of discussions and views on these differ. The purpose of this paper is therefore to study students 'conceptions of mathematics and mathematics teaching, with teachers' methods and tools of focus, in relation to previous research on the subject. The method used was a survey of students in secondary school and a textual analysis of previous studies on the subject.As revealed by the survey was that the textbook has a big advantage in mathematics education in Sweden today.Many students are not accustomed to working in a different way and thereforedoes not know either what the alternative approach entails.

Intern kommunikation -ur ett organisationskulturellt perspektiv

Problem: How does the organisational culture affect the internal communication between the middle manager and his or herssubordinates?Purpose: The most common way is to study how the communication affect the organisational culture. In our study we have examined the reverse perspective. The purpose of this study would be to explain how the organisational culture affect the internal communication between the middle manager and his or hers subordinates.Theories: The basic theories in the study are The basic model, Internal communication, Levels of culture, High-power culture, Socialconstructions, Organisational structures and Leader Member Exchange Theory.Method: The study is based on the qualitative approach. We have used interviews for our collection of raw data.

Elevers uppfattning om svenskämnet i årskurs 3 på gymnasiet

The purpose of this study has been to investigate students? perceptions of the content inthe Swedish subject and current syllabus for Swedish in the third year of uppersecondary school. The purpose has also been to analyze if students are familiar with theaims they are working towards, how explicit they are and if they have any significancefor the students? results and motivation. This investigation is based on a socio-culturalperspective and was made with help of a quantitative method by using questionnaires,but has also been studied to some extent qualitatively, which have been analyzed from astudent angle.The analysis of the results shows that the students have very good perception ofwhat they should study in Swedish year three in upper secondary school.

Gratis i princip : Gratisprincipen och avgifter på svenska folkbibliotek : en enkätundersökning utförd på Norrköpings Stadsbibliotek och Eskilstuna Stads- och Länsbibliotek

The theme of this essay is the principle of free access to the Swedish Public Libraries, and its aim is to fmd out the opinion of adult visitors of such libraries as regards the introduction of fees on the borrowing of books, already existing fees such as reservation fees, charges for interlibrary loans and charges for the late return of books.The main part of our survey comprises questionnaires that were handed out to 100 visitors at the Norrkoping City Library and 100 visitors at the Eskilstuna City and Provincial Library. In order to illustrate the fee problem from another angle, interviews with staff people from the two libraries were carried out A large part of the essay consists of material aiming to give a general picture of the subject, e.g. how the "free of charge principle" is tied to the Swedish library system, what arguments have been presented to maintain or reverse this principle, and a comparison of the relative situation in other countries. As the conception of popular education is so basic for the "free of charge principle", we also account for the idea of popular education.The result of our questionnaire shows, among other things, that 60,9% cannot consider paying for any of the free services offer by the libraries today, 21,3% answered that they could possibly consider paying for some of the services and 17,8% answered that they didn't know. 76% would rather pay for a library card than stop borrowing books altogether..

Avloppsvattenbehandling med membranbioreaktor : En jämförande systemanalys avseende exergi, miljöpåverkan samt återföring av närsalter

In the pilot plant at Hammarby Sjöstad, Sjöstadsverket, several new methods are tested in order to achieve a good use of resources. When a new technique is considered it is often the performance of the technique itself, under given conditions, that is evaluated. However, in order to evaluate the overall function the whole picture is needed. With a system analysis it becomes possible to make a comparison where all the positive aspects are put up against the negative ones, for the technique itself as well as its requirements. In this way the influence that minor components have on an entire system can be considered.This report presents a system analysis of an anaerobic membrane reactor (MBR) with a VSEP-membrane (Vibratory Shear Enhanced Process).

?Man sitter på sin plats och räknar i boken? : En studie av elevers uppfattningar om matematik och matematikundervisning med fokus på lärares metoder och verktyg

Swedish students' knowledge of mathematics has deteriorated in recent years. Teaching of mathematics is therefore starting point in an ongoing discussion among researchers, school leaders, politicians, teachers and others, who all thinks they know best about how teaching should be designed to the greatest extent possible to raise students' proficiency levels in the subject. Teachers' practices have long been the focus of discussions and views on these differ. The purpose of this paper is therefore to study students 'conceptions of mathematics and mathematics teaching, with teachers' methods and tools of focus, in relation to previous research on the subject. The method used was a survey of students in secondary school and a textual analysis of previous studies on the subject.As revealed by the survey was that the textbook has a big advantage in mathematics education in Sweden today.Many students are not accustomed to working in a different way and thereforedoes not know either what the alternative approach entails.

Kvantitativ RT-PCR-analys för detektion av pigmentrelaterade transkript i hårrötter från hund :

Malignant melanoma represents 4-7% of all canine neoplasms and they are the most common malignant tumors of the oral cavity and digits. These tumors are often aggressive and metastasize quickly. To date there is no effective treatment and survival times are short. Most dogs are euthanized due to complications caused by metastases. Melanin pigment is a hallmark of melanomas and is usually present in large amounts in these tumors.

Intellectual Property Rights : A Barricade to Technological Development. An Ethical Analysis on the Less Developed Countries

Debate over Intellectual Property Rights ?IPRs? particularly patent and copyrights is mainly on forward-looking industries in computer software. As part of a trade deal reached in 1994, the member nations of the World Trade Organisation must adhere to a global agreement known as TRIPS, for the Trade- Related Aspect of Intellectual Property Rights.This study is to analyse the ethical conception of Intellectual Property Rights and in particular its implications on the developing countries in relation to TRIPS. The approach will be to analyse a broad philosophical theories of property to see if there is any justification for a software program to be treated as private property and also argue base on John Rawls two principles of justice in relation to TRIPS Agreement. Some reflections will be put on the use of open-source software by less developing countries.From the study it was asserted that, strong IPRs protection would hinder technological transfer and indigenous learning activities in the early stage of industrialisation when learning takes place through reverse engineering.

Bioactive peptides in long-time ripened open texture semi-hard cheese

Bovine milk is an excellent source of bioactive peptides. The bioactive peptides are in an inactive state in the protein and are released during enzymatic activity, e.g. during cheese ripening. Specific properties of bioactive peptides from ripened cheese has been reported, e.g. antihypertensive, antioxidative, antimicrobial, immunomodulatory and mineral binding.

Två nyladdade batterier och en morotskaka : - Konsten att motivera sig själv som chef

When we started this study we quickly saw that almost all the previous research that we find was focused and concentrated on the fact that the employees should be motivated. The research also presents a top-down perspective which means from the head to the employee. A Swedish newspaper wrote in an article that 1/3 of all Swedish heads can?t motivate their employers. A Swedish internet platform discusses this and says that heads need to be motivated to be able to motivate people around himself.

Bloggen ? ett redskap för byggande av identitet och sociala nätverk: En kvalitativ studie av bibliotekariers bloggande

Weblogs, or blogs, are frequently modified web pages with a series of archived entries, generally in reverse chronological sequence. This thesis focuses on the rapid-growing phenomenon of weblogs and the fact that individuals with a background in library and information science are frequent users of weblogs. Since this is an explorative inductive study the ultimate purpose can be described as to find out what ?blogging? as activity is about. The research questions posed are: Why do individuals with a background in library and information science use weblogs? How does their professional identity affect their blogging? And finally; how do they use the weblog to create networks with other bloggers? The empirical material consists of audiotaped interviews with five informants who are all employed in knowledge work, either as librarians or information specialists.

Identifiering av 13 nya mjölksyrabakterier med DHPLC

Mjölksyrabakterier tillhörande släkten Lactobacillus och Bifidobacterium har nyligen upptäckts hos bin och i honungen de producerar och innefattar 13 nya arter[1]. Forskarna arbetar med att ta fram nya snabba och mer pålitliga identifierings metoder för att karakterisera dessa bakterier. I detta projekt undersöktes möjligheten att identifiera dessa bakterier med en ny metod som heter denaturing high performance liquid chromatography (DHPLC). Metoden bygger på separation av PCR (polymerase chain reaction) amplifierade 16S rDNA fragment i DHPLC [8]. Vid identifiering av bakterier amplifierades olika variabla regioner från 16S rRNA genen, som påvisade efter sekvensering störst genetisk variation mellan dessa bakterier [1]. Separationen utfördes med ion-pair reverse-phase high presure liquid chromatoghaphy (IP RP HPLC) med delvis denaturering av DNA molekylen.

Digitala och sociala medier i undervisningen för elevers ökade motivation, delaktighet och måluppfyllelse.

The aim of the study was to examine both 1) how aware teachers in a specific area are about ICT tools in teaching ; and 2) how likely teachers are to use ICT tools to reverse the trend of unmotivated students and low achievement scores . I will look for answers through the following questions:How extensive is the knowledge of the teachers on digital and social media in education? How have teachers in the past year used various social media in their teaching? In what grade does ICT-supported teaching lead to higher motivation, participation and achievement? Is there a difference between the sexes, different stages (1-3, 4-6, 7-9) and number of years in the profession in knowledge of and openness to the use of ICT in education?The method used is a questionnaire in which a number of respondents have answered a number of questions about ICT tools in teaching. Validity of the study can be said to be high when the survey has measured what it intended to measure, however, I need to be careful in draw full account of the result as the response rate is low with only 39%. In summary, the results show that there is low awareness among respondents about the methods and the digital and social tools I lift in the survey.Mainly the respondents use some of the methods and the digital and social tools in preparation for the lesson.

Kartläggning av returstålsflöden inom Sandvik Materials Technology

Sandvik AB är en högteknologisk verkstadskoncern som omfattar affärsområdena Tooling, Mining and Construction och Materials Technology (SMT). Sandvik Materials Technology är världsledande inom rostfria och höglegerade stål, specialmetaller, motståndsmaterial samt processystem. Inom SMT drivs ett inköps- och råvaruoptimeringsprojekt (IRO) som har målet att minska lagernivåerna av köpskrot och legeringar i råvarulagret på skrotgården. Kapitalbindningen anses i dagsläget vara för hög. Därför är det viktigt att ta reda på hur det interna flödet av returstål ser ut, för att på det sättet kunna förbättra lagerstyrningen.

Byggmoms : omvänd skattskyldighet för byggtjänster

I början av 2000-talet producerade Riksskatteverket en rapport vilken undersökte skattebortfallet inom byggbranschen. Rapporten gav bland annat ett förslag om att införa omvänd skattskyldighet för mervärdesskatt inom byggsektorn, byggmoms. Lagförslaget i prop. 2005/06:130 klubbades av Riksdagen och trädde i kraft den 1 juli år 2007. Under det första halvåret avgjorde SNI-koder vilka tjänster och företag som skulle omfattas av den omvända skattskyldigheten.

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