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2182 Uppsatser om Hydropower reservoirs; dam safety; erosion protection; waves; simulation; MIKE 21 Spectral Wave - Sida 45 av 146

Utvärdering av Ocular Protection Index

Syfte: Syftet med denna studie är att utvärdera Ocular Protection Index (OPI) för att se om det är en användbar metod vid diagnosticering av torra ögon. En del i utvärderingen är att undersöka korrelationen mellan OPI och resultatet på en symtomenkät, Texas Eye Research and Technology Center Dry Eye Questionnaire (TERTC-DEQ).Metod: Försökspersonerna fick i början av undersökningen fylla i TERTC-DEQ. Därefter observerades försökspersonerna vid läsning på avstånd och nära håll för att mäta deras blinkintervall. Försökspersonernas ögon undersöktes med spaltlampa och Tear Break-Up Time uppmättes för att därefter räkna fram OPI för varje försöksperon.Resultat: Totalt undersöktes 34 personer varav 4 personer exkluderades på grund av att de ej uppfyllde urvalskriterierna. Endast mätningar på höger öga redovisas i resultatet.

Socialtjänstens barnskyddsarbete En studie av socialsekreterares riskbedömningar avseende barn som utsätts för våld eller sexuella övergrepp i hemmet.

The overall aim was to examine how the public interest to protect children from violence and sexual abuse at home, is realized by social workers. The study´s central focus was the risk assessments as Social services are obliged to do when they receive a report containing concern that children are being exposed to violence or sexual abuse at home. The study addresses the following questions:o How do social workers go about practically, and what support and knowledge is being used to determine whether the Social services need to intervene for the protection of a child?o What risk and protective factors are taken into account by social workers in the assessment process?o What contextual factors do social workers experience are affecting them in the assessment process?o Which support does the documentation system BBIC provide in the assessment process?The study material was collected through qualitative group interviews, with a modified vignette methodology as tools. The study included a total of twelve social workers, with varying numbers in each interview group.

Anpassad skötsel - exempel på hyggesfritt skogsbruk i Mellannorrland :

Total protection is often the option chosen when protecting forests with high environmental values. An alternative to total protection is application of management regimes that do not interrupt continuity of tree cover. This study focuses mainly on continuous cover forestry (CCF) in forest stands already protected. All objects are situated in the county of Jämtland in northwest Sweden. The purpose of the study was to attain a greater knowledge about CCF practices.

Ungdomsanpassad myndighetskommunikation. En jämförande textanalys av Kronofogdemyndighetens texter som riktar sig till allmänheten och ungdomar.

The aim of this thesis is to contribute to a better understanding of the FRA-law. The focus of the study is to examine how Swedish politicians relate to the new draft of this law on intelligence. Key themes in the study are security, threats, surveillance and privacy. The power relationship between the individual and the state is also examined. Empirical data used in this study consists of a spoken plenary debate in the House which was held in connection with the adoption of the FRA law in June 2008.

Personlig lämplighet : Värderingsgrund vid rekrytering

Commercial expropriation occurs when real property is compulsory acquired by a private operator. This phenomenon is relatively new and has been criticized not only because of the rules concerning compensation, but also from the point of view of permissibility.An intervention in the protection of property must fulfill the requirement of important public interest set out in RF 2 kap. 15 § in order for it to be allowed. There is no definition regarding what constitutes an important public interest, the only thing that exist is a non-exhaustive list in the preparatory work. This in turn has led to the creation of a broad discretion when it comes to determining what constitutes important public interests.

Släng inte maten - ge bort den!

Every year, thousands tons of edible food are discarded by the grocery stores. This is food that could have gone to people that?s in need of it. In many countries, so called food banks are established in order to supply welfare organizations with this kind of food. Today there is no equivalent system existing in Sweden.

Analys av fördelningssystem för bostadshus

The purpose of this project is to analyze earthing systems for houses. By practical measurements and theoretical analyzes consequences of possible faults, that can occur within the facility and in the low-voltage distribution network, is illustrated.  The reason for this project is that nowadays one has to arrange with a main equipotential bonding system for buildings. Apart from that, if necessary, bathrooms must be provided with a supplementary equipotential bonding system.The practical measurements verify that potential differences in facilities may be due to voltage drops in the PEN conductor between the origin of the electrical installation and the power transformer.Based on the theoretical analyzes of possible faults, it is considered that the requirement for  supplementary equipotential bonding systems for bathrooms in most cases can be questioned, when basic insulation, fault protection, residual current devise and main equipotential bonding system already provides an adequate level of protection.A PEN conductor loss may result in a situation where metallic parts attached to the equipotential bonding system starts working as earth electrodes. Equipotential bonding system may also increase the incidence of stray currents. If TN-C-S systems is provided with a local connection to earth a redundant system against PEN conductor loss is obtained.

Mer säkerhet och mindre frihet med risk att förlora dem båda: En kritisk diskursanalys av lagförslaget till FRA-lagen

The aim of this thesis is to contribute to a better understanding of the FRA-law. The focus of the study is to examine how Swedish politicians relate to the new draft of this law on intelligence. Key themes in the study are security, threats, surveillance and privacy. The power relationship between the individual and the state is also examined. Empirical data used in this study consists of a spoken plenary debate in the House which was held in connection with the adoption of the FRA law in June 2008.

Analys av energianvändningen i kvarteren Carolina och Jenny : en fallstudie

An energy study has been performed on two blocks in an area called Gävle Strand. The buildings are owned by a tenant-owner?s association called brf Carolina and were built by the company Skanska 2008. The builder as well as brf Carolina are pussled by the fact that electricity use is higher than expected while heating is less. Skanska is also very interested in finding out how much heat recovery from stale exhaust air through a geo-thermal heat pump is contributing to the general heating requirement and energy balance in four out of the ten buildings located on the properties.To find possible answers to the higher electricity use a literature survey on user behaviour was conducted.

?Vi har haft tur här på Gotland?? : en studie om socialsekreterares psykosociala arbetsmiljö

The exposed position of a social worker entails serious demands to their working environment. The experience of the working environment is coherent with various circumstances such as physical, technical and psychosocial factors. The aim of this study is to investigate how social workers in Gotland experience their psychosocial working environment. As a theoretical ground we describe the working environment regulations and it´s framework. Previous national and international research enlighten issues such as definitions of threat and violence, the significance of education and policys within social work, social support and riskfactors.

Operationssjuksköterskan upplevelse av WHO´s checklista för säker kirurgi

Världshälsoorganisationens (WHO) checklista för säker kirurgi utvecklades för att minska risken för kirurgiska komplikationer och dödsfall i samband med kirurgi. Kommunikationen i operationssalen behöver förbättras mellan alla personalkategorier så att säkerhetsåtgärder blir konsekventa och rätt utförda. Målet med sjukvården är att främja en hög patientsäkerhet för att minimera andelen vårdrelaterade skador. Trots att WHO´s checklista visat positiva resultat finns indikationer på att följsamheten minskar samt att den möts av motstånd från personalen. Syftet med studien var att belysa operationssjuksköterskans upplevelse vid användningen av WHO´s checklista.

ACTA-avtalets internetregler : Förenliga med EU:s grundläggande fri-och rättigheter?

In tune with the cross-border trade the infringement of intellectual property rights has become a growing problem in Europe and the rest of the world. In June 2008 negotiations about a new international agreement was initiated between Europe, its member states and ten other countries, which will restrict infringements of intellectual property rights. The agreement is called ACTA, which stands for Anti-Counterfeiting Trade Agreement. On January 26, 2012 the European Union (EU) and twenty-two of its twenty-seven member states signed a letter of intent to the agreement and the EU?s internal processes of the agreement began.

Tillämpning av en markprofilmodell för hydrologiska beräkningar i avrinningsområdesskala

There is a great need to reduce nutrient leaching from arable land into lakes and oceans. By using several different types of models it has previously been possible to describe nutrient losses in a catchment area with a minimum unit of sub-catchment level. At present, it is instead desirable to model a smaller catchment with an opportunity to re-connect the results to the corresponding fields in the catchment. Such models already exist but they are not fully able to properly describe Swedish conditions and land characteristics in our region.With the approach of creating such a model, SLU has developed a project with this work as its first stage. The model is expected to be created under the working name SWE-model which stands for Soil Water Environment and is in this first stage supposed to apply the SOIL model in catchment scale. During the procedure to describe the first step in the process of developing such a model adapted to Swedish conditions and which works in the catchment scale with an area of about 10-30 km2, focus has been set on calculating the transport of water flow from different hydrological response units. Regardless of the processes occurring in the soil after the water has been added, it is assumed that all the water which flows from each simulated unit is drained.In the first step the hydrologic response units were identified based on land use and soil type in the study area. With the help of a script with functions that retrieve and transform data, certain units were chosen for simulation. The script was also created in this project. Finally, the model results were aggregated and summarized for each unique unit, for each sub-catchment, and also for the whole catchment.From the results it is possible to see similarities in the flow dynamics between modeled and measured data. The efficiency coefficient has been calculated to correspond to the mean of the measured values for the whole simulation period. With an automated calibration process the model should be able to perform better. The volume error gives an indication of overestimation from the model..

Validering av glidande statorfötter på Hissmofors G6 och G7

Jämtkraft AB has recently modernized its hydropower station at Hissmofors by replacing four older worn out units with two new units. The generators uses a concept with sliding stator feet to deal with the thermal movements that occur in the stator during operation when the unit is operating intermittently. At other sites, this method revealed shortcomings in the reliability. This has made Jämtkraft AB feel uncertainty about its function and therefore want to investigate it during an early stage. The generators have a built-in monitoring system for the sliding stator feet and by using data from there the function of the sliding stator feet has been investigated. The study focused on how the different stator feet move relative to each other and how the eccentricity and deviation from roundness changed during operation. The results show that there are several indications that the function of the sliding stator feet is not satisfactory.

Skillnaden i central och perifer retinal tjocklek mellan olika ametropier - en OCT-studie

Syfte: Syftet med studien var att, med hja?lp av Optical Coherence Tomography (OCT), underso?ka om det finns na?gon skillnad i central och perifer retinal tjocklek mellan olika ametropier.Metod: Studien omfattade 36 fo?rso?kspersoner, som grupperades beroende pa? ametropi i en myop, emmetrop och hyperop grupp. Av de 36 fo?rso?kspersonerna var det 15 myoper, 15 emmetroper och 6 hyperoper. En inledande ma?tning gjordes da?r fo?rso?kspersonernas objektiva refraktion uppma?ttes med autorefraktor och da?refter gjordes en avsta?mning i provba?ge fo?r att sa?kersta?lla refraktionen.

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