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446 Uppsatser om Nutrient recovery - Sida 12 av 30
Identifiering av fosfatfosfors käll- och flödesfördelning i ett litet jordbruksområde
Eutrophication of lakes and streams are nowadays a well known environmental problem and implies an enrichment of the nutrients phosphorus (P) and nitrogen (N). Phosphorus is considered to be the most important component for the growth of aquatic plants and leads in too large quantities to an intensification of growth. Phosphate (PO4) is the fraction of phosphorus that can easiest be taken up by plants and thus have the greatest impact on eutrophication. Increased plant growth in lakes and unfavorable conditions for aquatic animals are two examples of negative consequences. A significant portion of the increased nutrient supply to nearby water can be derived to phosphate leaching from agricultural areas, where private sewers and agriculture is two main sources.
Nutritionens betydelse för akut traumatiskt hjärnskadade patienter
The aim of the literature review was to illuminate the importance of nutritional management to patients who have sustained a traumatic brain injury (TBI) and describe nurses responsibility and meaningful function in the nutritional support. TBI patients tend to be associated with hypermetabolism and hypercatabolism, resulting in negative nitrogen balances. The results reveal increased energy expenditure and assessments of needs energy requirements at the TBI patients. This study determining the route of feeding: enteral versus parenteral nutrition. Furthermore describes complications associated with enteral feeding.
LCC-analys av FTX-system : En jämförelse av centralt- och lägenhetsplacerat
This report is the result of a thesis conducted at the consulting firm Bjerking AB andis the final part of the Bachelor Programme in Construction Engineering at Universityof Uppsala. The work aims to investigate the costs and how the choice of ventilationsystem affects building projects during a long-term period. This report covers costssuch as investment, maintenance and energy but also how they affect residents andbuilders. Building regulations for energy consumption are expected to be tougher;therefore a comparison of two different heat recovery ventilation systems(HRV-system) was made. One system is based on a centrally placed unit that coversthe whole buildings ventilation through vertical shafts.
Miljöeffekter av alternativa system för behandling av hushållsavfall i Santiago, Chile : en jämförelse mellan deponering och förbränning med energiutvinning
This report was written by Lisa Bengtson and Hanna Paradis and describes the
degree thesis "Environmental impacts of solid waste treatment in the Metropolitan
Region, Santiago, Chile ? a comparison between current system and incineration
with energy recovery". The purpose of this thesis was to investigate if incineration
with energy recovery could be motivated through an environmental perspective as
an alternative to landfilling of solid waste in Santiago, Chile. The study was
performed with Life Cycle Analysis as a theoretical base.
In Santiago, situated in the thirteenth region of Chile, Región Metropolitana, lives
6,5 million inhabitants. The major part of the solid waste produced in the region is
landfilled on three different sanitary controlled landfills situated outside the city
center.
Destinationsutveckling under politisk kris : En fallstudie om Tunisien 2011
The authors have during the spring semester 2011 studied the subject destination development during a political crisis, focusing on Tunisia. At the beginning of 2011 the country was in an uncertain political situation when the revolution of the Tunisian people occurred. This created massive demonstrations on the streets, and resulted in the current government's resignation. More effects of the revolution has been seen in a drastic decline of inbound tourists in the country, which in turn affected the country's population and economy. From this point on Tunisia as a destination needs to recover to once again become attractive to tourists.
Avena Sativa - En hyperackumulator? : En studie av havres kadmiumupptag
The aim of our research was to investigate if oat is capable of extracting cadmium to such extent that it is usable in decontaminating polluted soils. We grew oat in a hydroponic culture during 28 days in a controlled environment and a total of 30 plants were used. The nutrient solutions were contaminated with cadmium of ten different concentrations after seven days. After harvesting the plants, the roots were separated from the shoots, placed in separate containers and then turned to ashes. The cadmium content was measured three times per sample in an atomic absorption spectrometer.Our results indicate that the ability of oat to extract cadmium from a solution is linearly dependent of the cadmium concentration of the solution.
Musik som omvårdnadsåtgärd i pre-, peri- och postoperativ vård
The purpose of this study was to illustrate the effects of music in pre-, peri-, and postoperative care. This study is a systematic literature study based on 22 scientific articles with quantitative methods. Music is an alternative treatment used in nursing care. Nurses could as a complement to routine pre-, peri-, and postoperative nursing have music interventions in mind, because an operation involves anxiety, fear and pain for many patients. The result of the study shows that music can reduce patients? anxiety, pain and improving their wellbeing and recovery.
Näsnarens framtid i ett näringsstatusperspektiv
Eutrophication has been a problem in aquatic systems for a long time. It is well known that the key nutrient to control the eutrophication process is phosphorus. Lately, it has been possible to reverse the process and recover lakes from eutrophication.During a long time Lake Näsnaren in Katrineholms kommun, Södermanland, has been exposed of a large amount of phosphorus from the city's wastewater. The lake has a great value as a habitat of rare species but also a high recreation value for people living in Katrineholm and Södermanland. Lake Näsnaren is situated in a Natura 2000 area.
Erfarenheter av några utfodringssystem till får :
The evaluation of the function of the feeding of sheep herds is suggested to involve the work
effort, the fulfilment of the nutrient needs of the sheep and the feed waste. Mechanisation of
the feeding can be very simple or include high degrees of mechanisation.
Three different farms, representing different levels of mechanisation are presented.
Descriptions and analysis of the feeding systems including mechanisation, work effort and
estimations of the feed waste are made on each farm. The herd with the most advanced feed
mechanisation included a rolling feed band and mix wagon. The other farms were partly or
little mechanised including ad lib feeding from big bales and manual distribution of hay and
concentrates.
The most mechanised farm was able to feed a large herd of sheep at a low work effort and
little feed waste. However, the investment in machinery has to be weighed against the
improved efficiency.
Effect of vortex-processed water on tomato (Solanum lycopersicum) plants
This pilot study examined whether treatment with Vortex Process Technology (VPT) of the irrigation
water used on tomato (Solanum lycopersicum) plants had any effect on plant growth. In a block
experiment, with two blocks comprising 12 vases containing 1 L water and two tomato plantlets,
treatment in which, nutrient solution was based on Vortex-treated water was compared with an control
using untreated water. All vases were kept in a static aerated culture system in a daylight chamber for
four weeks. The results showed that the effect of the two blocks exceeded the effect of vortex
treatment in terms of leaf area and weight of fresh and dry matter. Plant height, stem width and
internodal length were significantly different in tomato plants grown in Vortex-processed water
compared with the untreated control.
Tillfrisknandets gemenskap
En kvalitativ socialpsykologisk uppsats med syfte att belysa betydelsen av gemenskap och detsociala i missbrukares process av tillfrisknande. Det empiriska materialet grundas i tio nyktramissbrukares livsberättelser, med vilka vi kommit i kontakt med genom organisationen VågaVa. Parallellt med vårt huvudsyfte vill vi också spegla denna stödorganisation. Den övergripande analytiska ramen diskuterar social aktivitet, etik, gemenskap i förhållande till kampen mot missbruket, vi lyfter även fram vikten av stöd- och samtalsgrupperna Nyktra Narkomaner och 12-stegsprogrammet. Teorierna som appliceras på materialet är R.
Nutritionens betydelse för sårläkning : en litteraturstudie
Syftet med denna litteraturstudie var att via litteraturen beskriva nutritionens betydelse för sårläkning. Studien genomfördes som en deskriptiv litteraturstudie där metoden bestod av att söka vetenskapliga artiklar i databaserna Medline, Cinahl och Academic Search Elite. Sjutton artiklar valdes ut. Resultatet visade att patienter med bensår eller trycksår i många fall inte når upp till de näringsrekommendationer som finns. Det visade sig vara vanligt att dessa patienter ligger vid gränsen för att vara undernärda.
Närsalter och bottenlevande organismer i Mönsteråsviken
The focus of this study was to examine the nutrients and benthic organisms of the bay ?Mönsteråsviken?, which is influenced by eutrophication. The purpose was also to look at an interesting gradient forming in the bay, namely the distance from the river outflow of Lillån. At 18 sampling sites in the bay samples of water, sediments and benthic organisms were collected in late April of 2011. The water was analyzed for nitrate, phosphate and chlorophyll.
Perianestetisk omvårdnad av häst :
This work is a combination of a literature study and a practical pilotstudy. In the literature study essential physiological reasons of why anaesthesia of horses is so risky are explained. Diffrent methods of induction and recovery are brought up, together with significant aspects of positioning the horse on the operating table and perianaesthetic complications such as myopathy, neuropathy and limb fractures.
The pilotstudy had the purpose of examine the bodytemperature of horses undergoing general anaesthesia and to control the perianaesthetic temperature measurements performed in Swedish horseclinics and veterinary hospitals. Our hypothesis was that the bodytemperature of the horses would decrease but not enough to cause a problem.
The purpose of this work has been to gather more profound knowledges in the subject of perianaesthetic nursing of horses which is an important part of the assignment of a veterinary nurse..
Nya tillämpningar för utandningstest kopplade till Kibions diagnostikinstrument IRIS ®
The focus of this study was to examine the nutrients and benthic organisms of the bay ?Mönsteråsviken?, which is influenced by eutrophication. The purpose was also to look at an interesting gradient forming in the bay, namely the distance from the river outflow of Lillån. At 18 sampling sites in the bay samples of water, sediments and benthic organisms were collected in late April of 2011. The water was analyzed for nitrate, phosphate and chlorophyll.