Dysfunktionell stress bland sjukvårdspersonal är ett ökande problem i dagens samhälle. En av de vanligaste anledningarna för sjukfrånvaro bland sjukvårdspersonal är psykisk ohälsa och värk i rörelseapparaten på grund av dysfunktionell stress. Sjuksköterskor som måste ta itu med svåra skador och avlidna människor löper större risk att utsättas för höga nivåer av dysfunktionell stress. Ökad utsatthet för stress kan leda till en försämrad prestationsförmåga och en ökad risk för misstag som kan äventyra patientens säkerhet och hälsa. Litteraturstudien har för avsikt att beskriva orsaker till stress och dess påverkan på sjuksköterskan på en akutmottagning. Studien bygger på 10 vetenskapliga artiklar, sex kvantitativa samt fyra kvalitativa. Litteraturgranskningen resulterade i två teman. Administrativ och organisatorisk stress: Administrativ och organisatorisk stress härstammar primärt från en bristande blandning av personal med hög och låg kompetens, underbemanning, överbeläggningar samt omvårdnadskrävande patienter. Konflikter på grund av skillnader i senioritet, tjänstgöringstid, skillnader i vanor och arbetssätt ligger till grund för stress. Dåligt stöd har en stor påverkan på hur sjuksköterskor upplever stress. Vårdpersonal som känner stöd från kollegor och ledning upplever en större arbetstillfredsställelse, högre arbetsmoral och upplever mindre stress i arbetsvardagen. Patientrelaterad stress: Sjuksköterskor utsätts för våld samt traumatiska händelser i sitt vardagliga arbete som upplevs vara en stor orsak till stress. Ångest, skuldkänslor, rädsla samt utmattning är några känslor sjuksköterskor upplever efter hot och våld eller traumatiska händelser. Stress kan leda till minskad koncentrationsförmåga  och  fokus  bland  sjuksköterskor  vilket  kan  resultera  i  en försämrad vårdkvalité. Sjuksköterskor som utsätts för traumatiska händelser löper risk för att utveckla PTSD (posttraumatisk stress disorder). För att kunna tillfredsställa grundläggande behov, undvika lidande, bidra till ökat välbefinnande och inge trygghet hos patienten. Är det viktigt med en ökad insikt i sjuksköterskans stressfyllda arbetssituation på akutmottagningar.

This study examines how Augmented Reality (AR) visualizations can impact the collective interaction of users. This research will focus on a multiphase experience with a buildup of different levels of Virtual Reality through the use of panoramas and 3D models. The experience was created using a participatory method with multiple tests and iterations to better create an evaluable product. The result if this experiment shows that the impact AR has on users is extensive. A properly framed character can even change a pair of two users into a group of three.

Mitigation of health and heat-build-up issues related to black, granulated crumb rubber infill (GCRI) in synthetic turf fields (STF) while maintaining acceptable impact absorption properties was the central goal of this study. The first step was establishing a STF baseline performance of GCRI samples that originated from several sources while elucidating the synergistic parameters between infill and turf that promulgate acceptable impact performance. Based on the knowledge base built on the GCRI-STF standard, three polymeric waste streams selected for their benign chemical contents, non-black colors and competitive low costs were evaluated as alternate turf infill materials: post-consumer carpet broadloom (PCCB), post-consumer carpet tile (PCCT) and recycled polyethylene terephthalate (PET) drink bottles. For ground PCCB carcass (the base on the carpet construction remaining after the face fibers were removed), the heterogeneous composition of unconfined fine particles and remaining short fibers prevented sufficient material integration to allow sufficient impact energy absorption. The ground PET homogeneous particles alone lacked sufficient impact absorption capabilities, and their synergistic interactions with the turf blade yarns were not sufficient to meet specified levels of impact performance. Only the PCCT infill crumb possessed a heterogeneous structure that effectively filled the STF to yield sufficient impact cushioning comparable to standard GCRI. In conclusion, PCCT was shown to be a technically-viable candidate for GCRI infill replacement, warranting further development to bring it into closer cost competitiveness to GCRI and ensure long-term wear and weathering performance in synthetic turf.

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

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The source of potassium and argon in ordinary chondrites is determined by comparing the argon activation energies of feldspar, pyroxene, and olivine with that of the L chondrites Chico and North West Africa (NWA) 091. In addition, shock pressures of 29 to 55.8 GPa are shown to lower the activation energy of feldspar. Comparable shock pressures lowers the activation energy of pyroxene outside of error, but the variability of this value, even among unshocked samples, makes a clear distinction difficult. The effect of shock on olivine has not been investigated, by myself or others. Like many ordinary chondrites, Chico and NWA 091 have two major releases of argon, one at low temperature, and the other at high temperature. The low temperature release of Chico contains two releases, which match the activation energies of shocked and unshocked feldspar. The low temperature release of NWA 091 only contains a single release, which matches shocked feldspar. The high temperature release of both Chico and NWA 091 has an activation energy that is similar to pyroxene, but not olivine. A potassium mass balance of Chico shows that all the potassium in the meteorite is contained in feldspar, and Raman spectroscopy shows this feldspar has not been converted into a high pressure phase, indicating the high temperature release is inclusions in a high temperature mineral. This mineral is probably pyroxene based upon the activation energy, though thin sections provide evidence that feldspar is more closely associated with olivine. NWA 091 exhibits multiple isochrons, showing the presence of two nonprimordial and (probably) non-terrestrial trapped components of argon. The removal of these trapped components reveals a thermal event produced by a collisional impact on the L chondrite parent body at 475 ± 6 Ma (which supports a link between L chondrites and Ordovician fossil meteorites), as well as a similar event at ~800 Ma (which, combined with similar ages on other Solar System objects, suggests an increased impact flux at that time). Chico did not exhibit an isochron, and the age data for Chico is not reported.

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