Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.

Syftet med vår uppsats var att med hjälp av Model Confidence Set (MCS) finna de bättre presterande modellerna bland de mest ?kända? och undervisade volatilitetsmodellerna. Vidare har vi även rankat dessa modeller inbördes. Eftersom prognoser om volatiliteten är mycket viktigt vid prissättningen på derivat, i detta fall ett räntederivat, är ämnet ständigt intressant. Med Model Confidence Set fann vi ett set av bättre presterande modeller utifrån vårt urval av ursprungliga modeller.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

There exist several known methods for calculation of radio coverage for ground-based systems. As far as we know there are no equivalent methods for the case of flying platforms when the altitudes and speeds are significantly different to those of ground-based systems. This thesis describes the theoretical concepts behind calculations of radio coverage for flying platforms. An investigation is made to sort out what is important and possible to employ in a model for simulations. A method is described and implemented in a program for evaluation of flying radio systems.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

ABSTRACT Infertility is a medical condition that affects approximately 16 % of Swedish couples in childbearing age and is a condition found in both men and women. When a couple has been trying to conceive for more than 12 months without success they need to see a health care provider. Infertility can be treated with medicine, insemination or assisted reproductive technology such as in-vitro fertilization (IVF) and intra-cytoplasmic sperm injection (ICSI). The aim of this study was to validate a morphokinetic selection model, KIDScore? D3 Basic, against morphological selection model that is currently in use at the Fertility unit at University hospital in Orebro.

This bachelor thesis has the purpose to visualize and document the air movementsprovided by different ventilation principles in an operating theatre. The visualizationwill be made as simple as possible in a physical model. The model and thedocumentation should be able to use in educational purposes.The study is based on the two most common systems for airflow, currently used inoperating theatres. The first principle is displacement ventilation in which the air issupplied at low velocity along the floor. The second principle is vertical parallel laminarairflow in which the air is compressed like a piston from ceiling to the floor.A review of literature resulted in the choice of size, design, and scale factor for themodel, as well as choices of ventilation principles and airflows.

We have been looking at three different types of agriculture in Södermanland, in the middle east of Sweden. We call the different types for Intensive, Extensive and Mix. The purpose is to get an economic defensible plan for how to run different farm sizes. We also have been looking at the working hours and how many hours the different types will give. We have a farm called Taxinge Gods as our pilot farm. Taxinge Gods grow 407 ha land and is located 60 km southwest from Stockholm.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.