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1842 Uppsatser om Concentration difficulties - Sida 19 av 123
Smärtlindring hos killingar efter avhorning :
The main purpose of this study was to investigate the effects of the non steroidal anti-inflammatory drug (NSAID) meloxicam in connection with dehorning of goat kids. Six 2-3,5 weeks old dehorned kids were given daily intramuscular injections of meloxicam (0,5 mg/kg; MG) and five age-matched dehorned kids were given isotonic NaCl (NG) for 3 days. The study was randomized and double blinded. The behavior of the kids was studied one day before dehorning, on the dehorning day and three days after. Blood samples were collected each day before the treatment and analyzed for plasma concentrations of meloxicam, hematocrit, cortisol, progesterone and glucose.
Synoptisk provtagning i vattendrag med eutrofieringsproblem : En studie för att identifiera områden för prioritering av åtgärder
In Halland, agriculture is the major source of eutrophication of water. In the study, synoptic sampling were performed in the three watercourses Nyrebäcken, Skintan and Vinån all located in the county of Halland. Sampling occurred during the period February to May on three occasions with different flow rates: high, low and base flow. Samples were taken in the mainstream and tributaries with intention to show how big the impact of eutrophication it is in the water and to assess the impact of the tributariesThe results show that all watercourses are affected by eutrophication. Nyrebäcken has the highest concentrations of nitrogen and phosphorus in the mainstream, then Skintan and last Vinån.
Leka och lära på lika vilkor? : En studie kring fritishemmets arbete om barn med koncentrationssvårigheter
The purpose has been to investigate leisure-time centers actual work on children with attention deficit disorder. In addition, the study strives to make leisure-time centers way of working, in relation to their assignments, visible. The study has also compared how the leisure-time centers work and what the research says. The survey was conducted with the help of three exploratory interviews with pedagogues and three-piece observations at the leisure-time centers. It was carried out at three different schools in two counties in Sweden.The results of the survey show that the schools are trying to create clear procedures, though the centers succeed with this in varied degrees.
Växters upptag av spårämnen från rödfyr : ett odlingsförsök vid tre rödfyrshögar i Västra Götalands län
Burnt alun shale and lime is the residual product that was formed when alun shale was
used as fuel to convert limestone to quick lime. The material contains arsenic, vanadium,
molybdenum, cadmium, nickel, lead, and uranium among other elements. The aim of this
paper is to examine the uptake of trace elements in vegetables grown on burnt alun shale
and lime to determine whether or not the surrounding environment and humans are
exposed to these elements by eating plant products.
A cultivation trial was carried out where onion, carrot, and lettuce were grown on three
mounds of burnt alun shale and lime in the Falköping area in Sweden. The treatments
were burnt alun shale and lime mixed with peat, only burnt alun shale and lime, and a
reference soil. The reference plots were natural soil mixed with peat adjacent to the
mounds.
För barnets bästa : En kvalitativ studie om pedagogers syn på sin anmälningsskyldighet
This study is aimed at finding out how nursery and pre-school teachers carry out their obligation to report suspected child abuse, and their views on the issue. The study was alsoa imed at highlighting any difficulties teachers might have when dealing with children who arem istreated. In addition, the study examines the impact on teachers and children when thet eachers decide to either report or not report abuse.The main issues addressed by this study are: Are pre-school and nursery teachers aware of their duty to report suspected child abuse and what are their opinions regarding this duty?How do the teachers claim they behave if obliged to report and what difficulties dothey encounter?In order to find the answer to these questions, qualitative interviews were made with eight pre-school teachers. The empirical evidence has been put in relation to theories of action and communication as well as to previous research in the area that concerns children who are mistreated.
Improvement of positive strand assay used in detecting positive and negative RNA of hepatitis E virus
Background: Hepatitis E (HEV) is a small, non-enveloped virus that belongs to the viral genus Hepevirus. HEV is a positive sense single-stranded RNA virus and there is insufficient information regarding its replication. This is mainly because the virus has low capacity to grow in normally used cell cultures. Many specific strand assay detection studies have been done in order to understand more about HEV replication. Unfortunately, these assays have the disadvantage of giving false positive results.Aim: The aim of this project was to improve the positive strand assay to increase specificity and eliminate false positivity which is due to high sensitivity of the polymerase chain reaction (PCR).
Spårelement i Sveriges jordbruksmark : flöden, trender och fältbalanser
Field balances based on supply and removal of trace elements from the topsoil have been calculatedfor farms specialized in crop, dairy and pig production in Sweden. Today's field balances have beencompared with the field balances of 1990 in order to examine if, and then how, the situation haschanged. Studied trace elements are arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu),mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb) and zinc (Zn).The balance calculations show that the stores of Cu and Zn are depleted with an average rate of -15% and -6 % over a 100-years period on crop farms when only commercial fertilizers are being used.The concentrations of Hg and Pb tend to increase in the topsoil on crop farms with more than 3 % forHg and with 2 % for Pb in 100 years. There is today balance between supply and removal of the traceelements As, Cd, Cr, Mn and Ni. In the south of Sweden, on crop farms with sugar beets in the croprotation, one can see a decrease in the concentration of Cd in the top soil by -6 % over a period of100 years.
Exponeringsrisker i samband med inhalationsbehandling av häst :
Bronchiolitis is a common performance decreasing disease in horses (Bracher et al,
1991¸Dixon et al, 1995) Its medical treatment includes inhalation therapy with
corticosteroids and b2-adrenoceptorer stimulators. Use of both these medicines is
prohibited for sport horses and athletes. Because the facemasks used for inhalation
therapy are not airtight, there is a risk for leakage of these medicines. We wanted to
see if cross exposure of nearby horses can result during normal recommended
treatment of a horse, and assess if this could result in doping positive urine sample
from the person treating the horse and from horses in the same airspace.
We did a pilot study with four healthy horses. The experiment was divided into
four parts.
En intervjustudie med lärare och specialpedagoger om arbetet med elever som har läs- och skrivsvårigheter
AbstractThe purpose of this study is to deepen my knowledge in how teachers can teach pupils with reading and writing disabilities, and also find out how a co-operation with remedial teachers can look like.The study is based on qualitative interviews with two teachers and two remedialteachers.The study shows that the two teachers´ co-operation with the remedial teacher appeared to bedifferent. The teacher who had the longest work experience was the one of the two that had a co-operation with the remedial teacher, the other teacher who graduated in 2007 did not have any co operation at all with the remedial teacher.The study also showed that the teachers and the remedial teachers in the study had different opinions about what method to use for pupils with reading and writing disabilities, and that the LTG method was the one most frequently used .All the participants in the study agreed that reading and writing disabilities is a large area, andthat there is a large variety in difficulties among the students . Some of the difficulties the participants had experienced were problems with decoding, pupils that had problems with learning the letters..
Algebra i gymnasieskolan : Vilka svårigheter har eleverna?
During my practice as a teacher trainee at an upper secondary school it became clear to me that many pupils have difficulties with algebra. Also in a report from the National Agency for Education (1999) you can see that the students algebra knowledge get worse and worse. I was surprised to find that many pupils seemed to get stuck on the level of attainment for the senior level of the nine-year compulsory school. As I have not studied anything about difficulties in algebra during my training to become a qualified teacher I would like to get to know more about this. I also examine why you have to study algebra in upper secondary school.
Fr?n de komplexa talens r?tter till klassrummet
This research overview examines what research says about upper secondary school students'
difficulties with complex numbers. The three main areas covered are general difficulties with
complex numbers, how to teach the subject, and whether the history of complex numbers can
be beneficial in this teaching. A historical deep dive into the history of complex numbers is also
included to further investigate this idea.
The results show that upper secondary school students struggle with complex numbers in
various ways. The name of the subject creates a negative connotation, as it is initially perceived
by students as fictional and complicated. Furthermore, a consequence of the inherently abstract
nature of complex numbers is that gaining a comprehensive understanding of them is
challenging.
Kemisk stabilisering av gruvavfall från Ljusnarsbergsfältet med mesakalk och avloppsslam
Mine waste from Ljusnarsbergsfältet in Kopparberg, Sweden, is considered to constitute a great risk for human health and the surrounding environment. Some of the waste rock consists of sulphide minerals. When sulphide minerals come into contact with dissolved oxygen and precipitation, oxidation may occur resulting in acid mine drainage (AMD) and the release of heavy metals. The purpose of this study has been to characterise the waste material and try to chemically stabilize the waste rock with a mixture of sewage sludge and calcium carbonate. The drawback of using organic matter is the risk that dissolved organic matter can act as a complexing agent for heavy metals and in this way increase their mobility.
Difficulties in Emotion Regulation Scale-ett instrument för att undersöka svårigheter med känsloreglering vid Borderline personlighetsstörning
Inom området psykologisk behandling har intresset för känsloreglering och svårigheter med känsloreglering som gemensam nämnare vid psykisk ohälsa allt mer ökat. Vid behandling enligt Dialektisk Beteendeterapi av Borderline personlighetsstörning har svårigheter med känsloreglering varit en central del, både att i behandling arbeta med för att uppnå ett större fungerande, och i förståelsen av svårigheter hos individer som har fått diagnosen. Vid utvärdering av behandling har dock instrument riktade specifikt mot känsloreglering och eventuella svårigheter saknats. Denna studie har undersökt om frågeformuläret Difficulties in Emotion Regulation Scale (DERS) kan användas för detta syfte. Resultatet visar en användarvänlighet av formuläret och signifikanta skillnader i svaren mellan en patientgrupp med diagnosen Borderline personlighetsstörning och en kontrollgrupp.
Energieffektivisering i ett reningsverk för skogsindustriellt avloppsvatten genom förfällning av extraktivämnen
Pulp- and papermills expend vast amounts of water in order to produce pulp, paper and cardboard. Hence, they alsocreate vast amounts of waste water which has to be cleaned before it can be released into the receiving body of water. Insuch a wastewater treatment plant, tremendous amounts of energy are expended by the aeration in the biologicalcleaning process. This aeration is necessary to supply the microorganisms that shall decompose organic material withoxygen, which they need for their metabolism. The transfer of oxygen from the gas phase to the liquid phase isprimarily inhibited by surface-active substances in the waste water like resin acids or fatty acids.
En gymnasielärares erfarenheter av läs- och skrivsvårigheter
AbstractThe purpose of this essay is to increase the knowledge of which strategies students with reading and writing disabilities or dyslexia use to learn in secondary school. The study aims to examine the following questions:Which coping strategies do students with reading and writing disabilities use in their studies?How can remedial teachers support students with reading and writing disabilities in their learning process?The study consists of two interviews with a total of three hours recorded material made with a secondary school teacher who teaches Swedish and English. The teacher has experiences of reading and writing disabilities herself but also from teaching students with dyslexia. The interviews are constructed into a lifestory describing experiences of reading and writing disabilities in school, during teacher training and as a teacher.