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569 Uppsatser om Mechanical fatigue - Sida 25 av 38

Tidig extubering efter hjärtkirurgi : Intensivvårdssjuksköterskans kunskap om tidig extubering och deras syn på faktorer som påverkar tiden till extubering

Early extubation of cardiac surgery patients has become increasingly important. The assessment of the patient before an early extubation is crucial and the intensive care nurses (ICU nurses) in this estimation is there for very important.The aim of this study was to examine critical care nurses' knowledge of early extubation, and what view ICU nurse has about factors that affect the time to extubation of cardiac surgery patients.A quantitative approach with descriptive and comparative design was used. Selection was all ICU nurses at a thoracic intensive care unit who were clinically active in patient care.The study showed that ICU nurses had good knowledge of why an early extubation was essential. However, the knowledge about the unit?s extubation criteria was low.

Mannens ensak eller bådas angelägenhet : Prostatacancers påverkan på den heterosexuella relationen

När en man diagnostiseras med prostatacancer innebär det en psykisk påfrestning för mannen och hans kvinnliga partner. Reaktioner som chock, meningsförlust, ensamhet och ångest är vanligt förekommande. Syftet med denna litteraturstudie var att beskriva hur det vardagliga livet upplevs och påverkas hos par där mannen lever med diagnostiserad prostatacancer. Resultaten i studien baseras på tio vetenskapliga artiklar med fokus på parens erfarenheter av sjukdomen. Impotens, inkontinens och fatigue var symtom som drabbade mannen till följd av sjukdomen.

Nya sensorsystem för kombinationseffekter av antibiotika

Idag är antibiotikaresistens ett allvarligt problem. En tillfällig lösning på problemet är att utnyttja synergieffekter som kan uppstå mellan olika typer av antibiotika. Det innebär att antibiotika skulle kunna ha effekt mot bakterier som har utvecklat resistens.I denna rapport har flera olika metoder, för att mäta bakterietillväxt, utvärderats. Dessa metoder indikerar om antibiotikakombinationerna har en effekt. Däribland har både kommersiella och nyligen publicerade metoder undersökts.

Metod och anordning för åstadkommande av stegrande presskraft i balpress

Det finns flera olika sätt att konkurrera med en balpress på marknaden. Ett av dessa är att minska cykeltiden för en komplett pressoperation. Härav formulerades en problemställning som lade grunden för examensarbetet. Problemställningen löd ?Metod och anordning för åstadkommande av stegrande presskraft i balpress, Nättraby Verktyg AB.? Sambandet mellan minskad cykeltid och stegrande presskraft gav lösningen med varierande hastighet på pressplattan. För att lösa problemet valdes en frekvensomriktare som omriktar matningsfrekvensen till elmotorn.

Mekaniskt brandsläckningssystem

Electrolux Laundry Systems is the world leader in manufacturing professional laundry equipment.The machines are used in the hotel sector, elderly care, in multifamily houses, laundry bars, and incommercial and institutional laundries.If there is oil or grease left in the clothes after washing may the heat from the dryer cause a chemicalreaction. This reaction may, under certain circumstances cause a fire inside the drum. Competitors toElectrolux has developed its own systems that extinguishes fire inside a tumble dryer and customershave expressed desire to purchase a fire-extinguishing system. Therefore, the project team receivedthe task by Electrolux to develop a fire-extinguishing system that extinguishes a fire in a tumbledryer.The purpose of the project has been to develop a system that both detects and responds to fire in anindustrial tumble dryer to meet the competitors and to satisfy customers' requirements.The goal was to develop a fire-extinguishing system for Electrolux Laundry Systems and develop afully functioning prototype.The project began with information searches on a variety of methods to both detect and extinguish afire. Subsequently, a number of different methods were used to develop a final solution and make aprototype.The result of the project is a fire-extinguishing system that extinguishes a fire inside a dryer.

Har energidryck någon kognitiv effekt i kombination med alkohol? : Med fokus på komponeneten koffein

Background: Energy drinks have been found in everyday-stores since 1997 and their popularity have increased over time. Consumtion of energy drinks takes place because of their ability to increase concentration and to decrease fatigue but also because of the popularity the drinks have got. Target groups for these stimulating beverages are adolescents and young adults. Energy drinks contain caffeine, taurine, glucuronolacton, carbohydrates and B-vitamins and voices have been raised about the eligibility for young people to ingest large quantities of these kinds of substances. Because of the properties of these substances it has become popular to mix energy drinks and alcoholic beverages to make up for the negative effects of alcohol and to be able to drink larger quantaties.Aim: The aim of this literature work was to investigate cognitive effects of the combination of caffeine in terms of energy drinks and alcohol and to determine if these effects could be harmful.Method: This literature work is based on five scientific articles retrieved from PubMed.

Sjuksköterskans psykosociala arbetsmiljö - en fara för patientsäkerheten?

Bakgrund: Sjuksköterskans yrke styrs bland annat av patientsäkerhetslagen, i vilken patientens skydd mot vårdskada står i fokus. Det förekommer trots det många vårdrelaterade skador som patienter blir lidande av. Psykisk belastning är en riskfaktor inom hälso- och sjukvården. Den psykosociala miljön innefattar sociala eller psykologiska faktorer. Sjuksköterskans psykosociala arbetsmiljö upplevs ha blivit alltmer påfrestande och påverkas av flera faktorer.

Att arbeta internt med Corporate Social Responsibility : Hur Corporate Social Responsibility påverkar hållbarhet och välmående bland socialarbetare

Corporate Social Responsiblity is today a well known concept in the business world. The concept contains responsibility and sustainability for those who chose to work with Corporate Social Responsibility and the three responsibility areas within the concept. Responsibility and sustainability is of importance, no matter what core business a corporation has. The responsibility goes both out from the corporation, to take care of the surrounding society and the environment. The responsibility also concerns the corporation interal, aiming for a sustainable work enivornment and good working conditions.

Att leva med fibromyalgi - en sjukdom som drabbar hela familjen : En litteraturbaserad studie

Bakgrund: Från början klassades fibromyalgi som en reumatisk sjukdom, men nu vet man att det är en störning i centrala nervsystemet (CNS). Symtomen är diffusa, men de vanligaste är konstant värk och fatigue. Det finns inga specifika diagnosmarkörer och heller ingen tillfredsställande medicinering. Sjukdomen syns inte fysiskt och många upplever en misstro från vårdpersonal och närstående, vilket har en negativ påverkan på deras välbefinnande. Syfte: Syftet med studien är att beskriva hur fibromyalgi påverkar patienten och dennes familj.

Copingförmåga och copingstrategier hos patienter med KOL och patienter med hjärtsvikt : En kvantitativ, jämförande tvärsnittsstudie av patienter i primärvården i Sverige

Minst 500 000 av Sveriges befolkning har kroniskt obstruktiv lungsjukdom (KOL) och ungefär 250 000 har hjärtsvikt. De två patientgrupperna hade många likartade symtom och en sjuksköterskeledd gemensam primärvårdsmottagning för dessa patienter kunde innebära många vinster. Ett av distriktssköterskans kompetensområde var att ha stödjande samtal om hur den enskilde patienten hanterade sin sjukdom. Syftet med uppsatsen var att jämföra copingförmåga och copingstrategier mellan patienter med KOL och patienter med hjärtsvikt, samt att undersöka eventuella skillnader av grad av ångest, depression, påverkan på funktion av fatigue och andfåddhet utifrån copingförmåga och användande av olika copingstrategier.  Metoden var en beskrivande och jämförande tvärsnittsstudie. Patienter med KOL respektive hjärtsvikt från primärvården i tre landsting ingick i studien och de fick svara på en hemskickad enkät.

Elevers  koncentrationsförmåga under matematiklektioner på förmiddagar och eftermiddagar

This project has aim to examine how students experience their concentration ability during mathematics lessons in the mornings and afternoons, and how students? learning can be in-fluenced by the concentration ability during mathematics lesson in the morning and after-noons respectively? Which role do the methods of learning play in mathematic depending on which time it is carried out during mornings or afternoons with regard to student concentra-tion ability? In order to find out those issues, I used two methods; (interview and observa-tion).Interview with 4 students and 3 teachers and observations of 4 mathematics lessons based on a qualitative method. In order to measure students' concentration ability during ma-thematics education on various times, I distributed questions to 23 students and repeated it during each lesson that I have observed from a quantitative approach in two classes in a sec-ondary school. In the literature I discuss the definition of concentration, and factors affecting the concentration negatively and positively. What is the relationship between concentration, learning and type of activity and how individuals can improve their learning and attention? In addition I studied two earlier studies on the concentration.

Beräkningsmodell för massbalanser för Slottshagens reningsverk

In the next few years the pollutants loading at the Slottshagen wastewater treatment plant in Norrköping is going to increase due to the reason that one of the waste water treatment plant in the district will be shut down.A survey of how these different pollutants are divided in the treatment process is therefore necessary for mapping out both the loading and treatment efficiency.This can be achieved by studying mass balances.Mass balances were carried out for the water treatment process for the mechanical/chemical,biological and the chemical stage.The mass balance studies show that the treatment efficiency was very good. However in order for the mass balances to be quite consistent and to ensure complete coverage of results and conclusions i.e. more reliable results, sludge samples should be collected and taken at different times per day and the influent rate should be investigated.In this work mass balance has been set up in order to illustrate and identify the factors that should be considered and taken care of for further estimation using mass balances in the future. Furthermore this survey results in a calculating model for the mass balances at thisplant.This calculating model is used as a tool to facilitate future calculations for mass balances for the water treatment process at Slottshagens wastewater treatment plant.Moreover it provides a basis for carrying out further estimation of the treatment process in the near future.In this project the importance of some operating parameters was also taken in consideration.This calculating model can be modified so that calculations of such operating parameters i.e. sludge loading and sludge age can be easily performed.Such information can be used further to evaluate different operation alternative in order to ensure an optimal use of the treatment process with in the plant..

Hälsorelaterad livskvalitet hos patienter med kolostomi efter kolorektalcancerkirurgi : en litteraturstudie

Introduktion: Kolorektalcancer är en av de vanligaste cancerformerna i Sverige. Behandlingen går oftast ut på att kirurgiskt avlägsna tumören vilket kan leda till en kolostomi. Patienten kan även behandlas med cytostatika och strålbehandling. Syftet med litteraturstudien var att beskriva hur patienter med kolorektalcancer upplever hälsorelaterad livskvalitet efter en kolostomioperation utifrån Ferrans et al. (2005) modell.

Mätning av abrasivflöde för vattenskärningsmaskiner

The content of the following report is the summarized result of three students thesis at Blekinge Institute of Technology in co-operation with Water Jet Sweden AB. This report will give the reader a description of principles how to measure the abrasive mass flow in a waterjet cutting system. The work began with a visit to Water Jet Sweden AB to get a closer look at the problem. When the analysis of the problem was done the criteria were defined in the form of demands and desires. The main task of the criteria was to guide the search for the solution. The work proceeded with an extensive search for abrasive flow meters along with obtaining information about flow measurement in general. When the search for abrasive flow meters resulted in nothing all the efforts were concentrated on finding a principle of measurement that could cope with the criteria.

Automatic Trimmerhead

Automatic trimmerhead is an examination project for making an automatic trimmerhead for grass trimmers with the user and functionality in focus. Our perception is that a happy user is a user who can pick up his or her trimmer, use it and put it back to its place when the job is done. It should not be necessary to interrupt work and perform maintenance on the machine just to make it work as promised.The project has been made in collaboration with the company Husqvarna, which is one of the biggest actors dealing with garden machinery on the market. Together we determined the project goal, ?To invent, construct and test a brand new concept for how an automatic trimmerhead can look and function?.At this day there are several different automatic trimmerheads on the market, both semi and fully automatic.

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