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423 Uppsatser om Benthic composition - Sida 27 av 29
Lärares bedömning av bildämnet vid en lärarutbildning i Sydafrika : En minor Field study
Bedömning av estetiska ämnen har varit ifrågasatt gällande dess kvalité, rättvisa, funktion och hur det påverkar ämnet och individen. Studien syftar till att beskriva bedömning av det estetiska ämnet Visual Arts vid en lärarutbildning i Sydafrika presenterat ur ett lärarperspektiv. Forskningsfrågorna utgår från ämnesdidaktikens teori gällande Vad bedöms, Hur kommuniseras bedömningen och Varför görs bedömningen. Metoden som använts är ett två månaders fältarbete vid en bildlärarutbildning där jag följt tre lärare och deras arbete genom deltagande observation, samtal, intervjuer och insamling av vissa dokument.Det empiriska materialet har analyserat från de tre didaktiska frågorna. Resultatet visar att lärarna, som var utbildade konstnärer lade ned mycket tid och engagemang på bedömning.
Kan nutritionsbehandling bidra till läk-ning av trycksår bland äldre patienter?
Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionTitle: Can nutritional support contribute to the healing of pressure ulcers in elderly patients?Author: Anton Kinnander, Sandra SmidelikSupervisor: Elisabet RothenbergExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: 12-04-11Background The number of elderly patients with co-morbidity is increasing in the western world. It is therefore reasonable to predict increasing incidence and prevalence of pressure ulcers. One study, published 2009, found that as many as 59 % of geriatric patients within the Swedish health care system had developed pressure ulcers. Symptoms vary from mild erythema to severe deep tissue damage and development of pressure varies from hours to weeks.
Vindfällning, tillväxt och plantuppslag i en 13-årig granskärm i Medelpad :
The interest for alternative forest regeneration methods increased significantly during the 1990´s after 50 years dominance of the clear-cutting system (Holgén & Hånell 2000). One reason for this was that clear-cutting was being more and more questioned by different envi-ronmental organizations and because the forest sector for economical reasons wanted to find cheaper ways to regenerate forests. In the beginning of the 1990´s two shelterwood experi-ments were established in a joint effort by Svenska Cellulosa Aktiebolaget (SCA) and the Dept of Silviculture, Swedish University of Agricultural Sciences (SLU). The experiments include various forms of cutting and shelterwood densities and represent productive spruce forests in central and north Sweden (Roggsjön in the province of Medelpad and Skikkis-jöberg in the province of Västerbotten, respectively ). The experiment next to Roggsjön has been reported earlier in three MSc theses, and is also the focus of this thesis.
Klövviltets besöksfrekvens och bete i sydsvenska poppelplanteringar
Energy is an essential part of the society and for a sustainable future we need to use the energy resources in a sustainable way. The forest is Sweden?s most important resource for renewable energy and a higher production combined with shorter rotation periods (time from planting to clear cutting) can increase the access to energy. The tree genus poplar (Populus spp.) is interesting as energy resource as it has both high production and short rotation period.
But browsing ungulates are a major threat to the establishment of poplar plants and therefore the poplar plantations need to be fenced in today. To use fences is expensive and time consuming; this makes it interesting to find more cost-effective solutions where there is no need to fence.
The aim with this study was to look at the ungulates? occupation rate and browsing pressure in poplar plantations without fence.
Grupper vs. Individer : en kvantitativ studie om gruppers risktolerans i förhållande till individers
Beslut angående finansiella investeringar sker för den enskilde individen likaväl som i företag. Besluten följer den finansiella världens utveckling och blir därmed alltmer komplexa. Placeringar av monetära tillgångar med förväntan att generera inkomst eller värdestegring innebär en risk. Risknivån på investeringen beror på investeringsbeteendet hos beslutsfattaren som kan ge konsekvenser på den finansiella marknaden och kan så småningom leda till finanskriser om ett överdrivet behov av risk uppstår hos beslutsfattare.Genom att studera vad som påverkar risktolerans öppnas dörrar för att kunna förstå vad som ligger bakom vilken risk som väljs vid en finansiell investering. När förändring i risktolerans studeras tas hänsyn till vilka sorters beslutsfattare som finns på den finansiella marknaden.
Inverkan av juverhälsostatus på variation i mjölkens sammansättning och innehåll av utvalda inflammatoriska markörer
SAMMANFATTNINGMastit är den vanligaste och mest kostsamma sjukdomen hos mjölkkor. Enligt statistik från Svensk Mjölk har cirka 65 % av alla kor i Sverige mastit någon gång under en laktation. Subklinisk (utan märkbara symtom) mastit utgör det största problemet. De är svåra att upptäcka då även mjölken ser normal ut, vilket resulterar i att den hamnar i tanken och levereras till mejeriet. Mjölk från kor med mastit har ett ökat celltal samt försämrad kvalitet och sammansättning vilket i slutändan medför sämre betalt för lantbrukaren.
Stärkelsenedbrytningens betydelse för mjölkkors konsumtionsmönster och mjölkproduktion :
Feed intake in dairy cows is regulated by a variety of factors influencing hunger and satiety.
One of the regulation systems includes the short chain fatty acids produced during feed
degradation in the rumen. Starch can be digested either in the rumen where short chain fatty
acids are produced or in the small intestine where glucose is the end product. Since glucose
does not have the same effect on satiety that short chain fatty acids have, the site of starch
digestion might be an important factor that affects feed intake and milk production. The aim
of this study was to investigate the effects of site of starch digestion on feeding behaviour
(feed intake, consumption time, and eating frequency) and milk production.
Because feeding behaviour is closely connected to the cows? environment, the study also
included observations of behaviour.
Three different feed rations were compared.
Development of new food products with components active against Helicobacter pylori - with purpose to improve gastric health in humans
Gastric and intestinal disorders are common and costly human health problems worldwide. Helicobacter pylori are a gram-negative, pathogen bacteria and the most common cause of duodenal and gastric ulcer in the stomach the intestinal mucosa. Prolonged infection and colonization can lead to chronic gastritis and stomach cancer. H. pylori are present in the gastric and intestinal mucosa of half of the world population and a relation between infection and low socioeconomic status has been shown.
Chemical and sensory analyses of juice, cider and vinegar produced from different apple cultivars
The interest for locally produced food is increasing due to consumer concern about the environment, distrust of industrial foods and a demand for high quality products. Apple is the predominant fruit crop in Sweden, and by processing apples into cider and vinegar, these products could significantly contribute to the development of the market of local foods.In this study different yeast types and different bacterial cultures were evaluated for their suitability in cider and vinegar production from cloudy apple juice. Ten apple cultivars (Aroma, Baldwin, Belle de Boskoop, Bramley, Cortland, Gravensteiner, Ingrid-Marie, Jonathan, Rubinola and Spartan) were also evaluated for their suitability for production of juice, cider and vinegar. Chemical analyses including total soluble solids, titratable acidity and total phenols were performed on the products along with sensorial evaluation by taste panels.The yeast strains were shown to have an effect on fermentation rate and the resulting content of total phenols in ciders fermented from cloudy apple juice. Dry commercial starter strains gave a higher appreciated cider compared to cider that was spontaneously fermented, and the ale yeast Safale S-04 was concluded to be the most suited for fermentation of cloudy apple juice.For vinegar production, the bacterial culture had an effect on TSS, but not on any other chemical or taste characteristics.
Sensorer och system i mjölkkobesättningar : en litteraturstudie
The trend in milk production is similar in Sweden and across the world; the farms are getting fewer but increasingly bigger. The costs for hiring workers are increasing, which results in more cows per animal keeper. Sensors can then be a great tool for keeping track of animals which need special attention. With a reported decreasing fertility, sensors that can detect oestrus even at low levels can be especially helpful in bigger herds to pinpoint the cows that may be in oestrus. The number of farms with dairy cows that install AMS, Automatic Milking Systems, are increasing, and that also increases the need for sensors to control milk quality and composition when there is no visual control of the milk by a milker before milking starts.For the sensor data to be useful you have to have software designed to analyze and interpret the data to get relevant information that the farmer can use.
Att producera eller reproducera text? : En studie av fem gymnasiepojkars arbete med skrivprocessen i en provsituation
AbstractAuthor: Annelie JohanssonYear: Spring 2006Swedish title: Att producera eller reproducera text? En studie av fem gymnasiepojkars arbetemed skrivprocessen i en provsituation.English title: To produce or reproduce text in essays. A studie of five high school boys? workwith the writing process in a test situation.City, university: Växjö, Växjö Universitet, institutionen för humaniora [Växjö, Växjö University, School of the Humanities]Pages: 53Content:The major aim of this study is to investigate how five male high school students in the ages seventeen to eighteen produce or reproduce in their texts during an essay examination. Focus is also put on the five students? writing processes in a classroom situated writing task and on their own comments to their writing.
Ensiling characteristics of Banana peelings
Urbaniseringen i Kampala växer snabbare än den ekonomiska tillväxten, vilket skapar en stor grupp människor med så svag köpkraft att de inte kan köpa mat för dagen. En lösning på problemet är att odla sin egen mat, men med de begränsade landarealer som en växande befolkning leder till, finns det inte tillräckligt med mark att odla eller bedriva extensiv boskapsproduktion. Bönderna tvingas därför att utfodra djuren med de biprodukter som genereras från hushållet och från den lokala marknaden. Uganda är en av världens främsta bananproducenter, där den större delen av produktionen går till landets egna humankonsumtion, vilken i sin tur genererar enorma kvantiteter bananskal varje år. Bananskalen säljs på de lokala marknaderna och utgör en billig foderkälla till framförallt idisslare för Ugandas bönder.
Användarvänlighet i blötutfodring : enkätstudie för smågrisproducenter
It is possible to affect the feed costs in different ways. By steeping or fermentation the digestibility of the feed is improved for the animals with a natural process in the wet feeding system Steeping means that the feed is soaked some hours before feeding. This process activatesenzymes and improves the digestibility of for example phosphorus in the feed and make it more accessible to the animal. Wet feeding can be fermented or not. Fermentationmeans that the feed has been soaked for a certain length of time so that a biological process is started.
Skattning av den integrerade hydrauliska konduktivitetens variation kring Tunåsens infiltrationsanläggning : En utredning av påverkan från möjliga osäkerheter i befintlig information
Estimation of the variation in the integrated hydraulic conductivity around the Tunåsen infiltration facility - An investigation of the effects of uncertainties in existing informationAlmost half of Sweden?s drinking water volume is produced from groundwater. The main fraction of this is extracted from eskers, some of which allow for very large extraction rates. Despite this, the groundwater volume is not sufficient in some areas. This has led to an extensive use of artificial recharge.In Uppsala, the total volume added through artificial recharge is divided between four infiltration facilities.
Kortare sintid ? hur påverkar det kons mjölkavkastning, metabolism, hälsa, hull och vikt?
A shorter dry period length has in studies abroad showed some positive effects among high yielding dairy cows. Among other things it has been suggested that the periparturient metabolic stress becomes lower, that the fertility is improved and dry off becomes gentler for the udder, due to a lower milk yield. The milk yield is generally reduced during the first period after calving, especially among primiparous cows. The aim of this master thesis was to investigate how Swedish cows were affected by a shortened dry period, regarding milk yield, metabolism, health, body condition and body weight from two months before calving to some weeks after calving. Also plasma concentration of lactose during the period before calving was determined.