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Plant Calreticulins - isoforms, localization and function

Popular Abstract in Swedish Populärvetenskaplig sammanfattning på svenska Denna avhandling handlar om kalretikulin (engelska: calreticulin; CRT), ett protein som bidrar till att andra protein får rätt struktur och som också är inblandat i en kvalitetskontroll av dessa. CRT ser också till att kalciumbalansen i cellen upprätthålls. Hur går detta då till och hur bidrar denna avhandling till att öka kCalreticulin (CRT) is an endoplasmic reticulum (ER)-located protein involved in quality control of newly synthesized proteins as well as in calcium homeostasis of the cell. Most of what is known about CRT arises from studies of mammalian systems. However, using a Arabidopsis thaliana CRT gene expressed in mouse fibroblasts deficient of endogenous CRT, the wild type phenotype could be rescued with

Quantification Methods for Clinical Studies in Nuclear Medicine - Applications in AMS, PET/CT and SPECT/CT

Popular Abstract in Swedish Inom området diagnostisk nuklearmedicin används radioaktiva läkemedel som ges (administreras) till patienterna i syfte att diagnostisera ett antal olika sjukdomstillstånd. Då man tar fram nya radioaktiva läkemedel för användning inom diagnostisk nuklearmedicin handlar det många gånger om att uppskatta mängden av ett visst upptag av radiofarmakat i olika organ och vävnadAn essential part of the development of new radiopharmaceuticals for use in diagnostic nuclear medicine is the determination of its biokinetic properties. The uptake and turn-over of the radiopharmaceutical in the source organs is of great interest since this could determine whether the radiopharmaceutical would be suitable for clinical use or not. It is also important that the biokinetics and dos

Molecular Mapping of Movement-Associated Areas in the Avian Brain: A Motor Theory for Vocal Learning Origin

Vocal learning is a critical behavioral substrate for spoken human language. It is a rare trait found in three distantly related groups of birds-songbirds, hummingbirds, and parrots. These avian groups have remarkably similar systems of cerebral vocal nuclei for the control of learned vocalizations that are not found in their more closely related vocal non-learning relatives. These findings led to

Mechanisms of stretch-induced growth and contractile differentiation in vascular smooth muscle

Popular Abstract in Swedish Blodkärlens glatta muskulatur kan anpassa sig till ett ökat tryck genom omstrukturering och hypertrofi, vilket ofta ses hos patienter med hypertoni. De molekylära mekanismerna som ger upphov till dessa effekter är inte fullständigt klarlagda. Vi har därför utvecklat en modell för att undersöka effekterna av tryck (sträckning av kärlväggen) på kärlpreparat från portaven Vascular smooth muscle can adapt to increased intraluminal pressure by remodelling and hypertrophy, as seen in hypertension. The molecular mechanisms responsible for this are still incompletely characterized. We have developed an organ culture system where strips of rat or mouse portal veins are cultured for 1 to 3 days loaded (stretched) by an attached weight and then studied for morphology, func

Back in Business?- Returning emigrants and entrepreneurship in rural Sweden 1880-1930

In this paper I study how 1500 returned Swedish-Americans acted after their return to a mainly rural area of southern Sweden. The rural society in which the returnees grew up before immigrating to America was still largely a self-sustaining society albeit with a slowly expanding market economy. Most of the returnees came from a poorer background but quite a few of them experienced upward social mo

Effects of pseudophakic lens capsule opacification on optical coherence tomography of the macula

AbstractPURPOSE: To report observations on the influence of posterior lens capsule opacification on optical coherence tomographic imaging quality and measurements of macular thickness. METHODS: The retrospective study included 13 eyes in 12 patients of which 2 eyes had a healthy macula and 11 eyes had maculopathy. In all eyes posterior lens capsule fibrosis was present. A clinical examination incl

Cerebral protection by AMPA- and NMDA-receptor antagonists administered after severe insulin-induced hypoglycemia

Excitatory amino acids are implicated in the development of neuronal cell damage following periods of reversible cerebral ischemia or insulin-induced hypoglycemic coma. To explore the importance of glutamate receptor activation in the posthypoglycemic phase, we exposed rats to 20 min of insulin-induced severe hypoglycemia. The rats were treated immediately after the hypoglycemic insult with four r

Aggregation, aggregate composition, and dynamics in aqueous sodium cholate solutions

The translational mobility of aggregates formed in aqueous sodium cholate solutions was obtained from the self-diffusion coefficient of solubilized decanol, which was determined using the capillary tube method with radioactive labeling. Combining these results with the self-diffusion coefficients of cholate ions, sodium ions, and water molecules the following quantities were determined as a functi

Concentration of citrus fruit juices in membrane pouches with solar energy Part 1 : How solar drying setup and juice pretreatment determine the drying flux

The aim of this study was to investigate how solar drying setup and choice of juice pretreatment determine the drying flux in a fruit juice concentration process called solar assisted pervaporation. With this process, hygienic membrane pouches and solar energy are used to concentrate and preserve fruit juices. In this study, the feasibility of concentrating citrus (tangerine) juice into marmalade

Diagnostic accuracy of troponin T measured ≥6h after symptom onset for ruling out myocardial infarction

Objectives: Guidelines recommend a single high-sensitivity cardiac troponin T (hs-cTnT) ≤14 ng/L measured ≥6 h after chest pain onset combined with a GRACE score <140 and the patient being pain-free for ruling out myocardial infarction (MI). There is however little data on the performance of this strategy. We therefore aimed to evaluate the diagnostic accuracy of a hs-cTnT ≤14 ng/L measured ≥6 h a

Sense of Coherence and the association with sociodemographics and disability related factors in persons with late effects of polio

BACKGROUND: Sense of Coherence (SOC) is important for successful adaptation in persons with life-long disabilities. A previous study has shown that persons with Late Effects of Polio (LEoP) have a level of SOC indicating that they generally have the ability to understand, handle and being motivated when dealing with stressful events and problems arising in their lives. However, no study has explor

Parental health and psychosomatic symptoms in preschool children : A cross-sectional study in Scania, Sweden

Aim: The aim of the study was to assess the association between parental self-rated health and recurrent abdominal pain (RAP) in preschool children. Methods: A questionnaire, including questions about sociodemographic and psychosocial factors, lifestyle, parental and child health, was sent to parents of all 4-year-old children in Scania, Sweden. The response rate was 43.6%. The outcome was RAP and

Crop loss evaluation using digital surface models from unmanned aerial vehicles data

Precision agriculture and Unmanned Aerial Vehicles (UAV) are revolutionizing agriculture management methods. Remote sensing data, image analysis and Digital Surface Models derived from Structure from Motion and Multi-View Stereopsis offer new and fast methods to detect the needs of crops, greatly improving crops efficiency. In this study, we present a tool to detect and estimate crop damage after

Carbon dioxide, oxygen, and serum biomarkers after out-of-hospital cardiac arrest

Cardiac arrest is the aprupt loss of cardiac function and circulation, follwed by the loss of consciousness and breathing. Most patients succumb before admission to hospital and survivors frequently suffer from anoxic-ischemic brain injury. The number of patients who survive with good neurological outcome, is low. In this thesis, we investigated the association of abnormal arterial partial pressur

Evaluation of a sound environment intervention in an ICU : A feasibility study

Background: Currently, it is well known that the sound environment in intensive care units (ICU) is substandard. Therefore, there is a need of interventions investigating possible improvements. Unfortunately, there are many challenges to consider in the design and performance of clinical intervention studies including sound measurements and clinical outcomes. Objectives: (1) explore whether it is

Improving requirements-test alignment by prescribing practices that mitigate communication gaps

The communication of requirements within software development is vital for project success. Requirements engineering and testing are two processes that when aligned can enable the discovery of issues and misunderstandings earlier, rather than later, and avoid costly and time-consuming rework and delays. There are a number of practices that support requirements-test alignment. However, each organis

Disentangling population strategies of two cladocerans adapted to different ultraviolet regimes

Zooplankton have evolved several mechanisms to deal with environmental threats, such as ultraviolet radiation (UVR), and in order to identify strategies inherent to organisms exposed to different UVR environments, we here examine life-history traits of two lineages of Daphnia pulex. The lineages differed in the UVR dose they had received at their place of origin from extremely high UVR stress at h

Neighborhoods and mortality in Sweden : Is deprivation best assessed nationally or regionally?

BACKGROUND The association between neighborhood deprivation and mortality is well established, but knowledge about whether deprivation is best assessed regionally or nationally is scarce. OBJECTIVE The present study aims to examine whether there is a difference in results when using national and county-specific neighborhood deprivation indices and whether the level of urbanization modifies the ass

Palaeoenvironments, palaeoecology and palaeobiogeography of Late Cretaceous (Campanian) faunas from the Kristianstad Basin, southern Sweden, with applications for science education

I den andra delen av avhandlingen introduceras några konkreta förslag på tillämpningar av paleontologisk kunskap generellt, och forskningsresultat om fossil från Kristianstadsområdet specifikt, som kan användas i undervisning från förskola till gymnasieskola med undervisningsförslag inom de tre områdena; fossil och dinosaurier i förskolan, tidslinjer för utveckling av tidsmedvetenhet samt geovetenThis thesis is thematically divided into two sections: Part1 presents studies related to the palaeoenvironments,palaeoecology and palaeobiogeography of the LateCretaceous (Campanian) faunas from the KristianstadBasin of southern Sweden; Part 2 reports on applicationsof palaeontological research for science education inschools.Part 1 was based on personally conducted fieldworkand biostratigraphical