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731 Uppsatser om Measurement bias - Sida 9 av 49
Implementering av höghastighetsgränssnitt i 0,15 µm halvledarprocess
This study investigated the possibility of implementing three standards, Transistion Minimized Differential Signaling (TMDS) and two versions of Stub Series Terminated Logic (SSTL), for inter-chip communication in a specific manufacturing process. The two SSTL standards were implemented in one transceiver system while TMDS was implemented in a separate system. The evaluation was done with Spice simulations on schematic level with some parasitic capacitance and resistance. The idea was to investigate the possibility of implementing these standards and get an idea of eventual shortcomings. In order to create models as a basis for evaluation, simulation environments with models for circuit board and packages were created and transmitters and receivers were designed.
Laktatnivån i blodet : en prognostisk markör för tikar med pyometra?
The purpose of the present study was to explore if blood lactate levels are increased in bitches with pyometra, and if the lactate measurement could be used as a prognostic indicator and to determine outcome. The present study
included 16 bitches with pyometra that were admitted to the University Animal Hospital, Swedish University of Agricultural Sciences, Uppsala, Sweden. For comparison, a control group consisting of 14 healthy staffowned
bitches was also evaluated. In all bitches, a physical examination was performed and blood samples for analysis of haematological and biochemical parameters were obtained. In all bitches with pyometra, surgical ovariohysterectomy was performed and a uterine sample for bacteriological culture and identification was collected.
Ultraprocessade livsmedels effekt p? energiintag och kroppsvikt - En systematisk litteratur?versikt av randomiserade kontrollerade studier
Syfte: Syftet med denna systematiska ?versikt ?r att unders?ka hur ett h?gt intag av
ultraprocessade livsmedel (UPF) p?verkar energiintag och kroppsvikt.
Metod: Litteraturs?kningen f?r denna ?versikt genomf?rdes i databaserna PubMed och
Scopus. Inklusionskriterier var randomiserade kontrollerade studier (RCT-studier) skrivna p?
svenska eller engelska med en vuxen population p? ?ver 18 ?r med normalvikt, ?vervikt eller
obesitas (BMI>18.5 kg/m2). Exklusionskriterier var icke RCT-studier samt barn/ungdomar
under 18 ?r, sjuka eller underviktiga individer (BMI.
Implementering av Constant Fraction Detection vid avståndsmätning
This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.
Volymmätare för tall- och grankott
This thesis describes the planning and development of a volume meter of pine and spruce cones. The product was designed and developed for Stigsjö Skog och Frö AB in Härnösand. It was developed taking into account a number of requirements set by the supervisor David Zetterlund. The main requirements were that the volume measurement would be fast and give accurate results. These are two requirements that are missing in today's volume measuring method which is very problematic for the company.The plant was visited several times in Härnösand, mainly to discuss the generated concepts with the supervisor and perform tests on the prototype.
Mätning av stamdiameter med markstående scanner :
Booth for operational planning of harvesting and for long term planning, data is today collected manually. Intensive objective field inventories are usually too expensive. To enhance optimisation of timber flow from forest to industry Moore efficient methods for measuring tree stems of standing trees are needed. The performance of terrestrial laser scanners have improved and these could possibly be used within forestry in the future. The objective of this study was to validate how a terrestrial laser scanner could be used to measure stem diameter, and to test how the errors depend on distance from the scanner and tree species.
Two plots (one pine and one spruce) were used for this study.
Går det att analysera S-TSH, S-T3 fritt och S-T4 fritt på BD Vacutainer® RST??
Sköldkörteln (tyroidea) är ett endokrint organ som påverkar ämnesomsättningen. Tyreoidea stimulerande hormon (TSH) frisätts från hypofysen och stimulerar syntes och frisättning av tyreoideahormonerna trijodtyronin (T3) och tyroxin (T4). Tyreoidea hormonerna har i sin tur en negativ påverkan på frisättningen av TSH. TSH, T3 fritt och T4 fritt analyseras på serum med immunokemiska metoder. Becton Dickinson (BD) har tagit fram ett snabbkoagulerande provrör för analys av serum.
P?verkan p? HbA1c av precision nutrition baserad p? CGM hos vuxna med prediabetes/diabetes typ 2 - En systematisk ?versiktsartikel
Syfte:
Denna systematiska ?versikt syftar till att unders?ka p?verkan av precision nutrition (PN) baserad p? kontinuerlig glukosm?tning (CGM) p? glykosylerat hemoglobin (HbA1c) hos individer med diabetes mellitus typ 2/prediabetes.
Metod:
Litteraturs?kningen genomf?rdes i slutet av januari 2025 i databaserna PubMed och Scopus. Den inkluderade populationen bestod av vuxna individer med/utan insulinbehandlad diabetes typ-2. Interventionen var kostbehandling baserad p? CGM-m?tningar med/utan andra biomark?rer.
Evaluation of four methods for the assessment of joint swelling in dogs
Evaluation of joint swelling is an important part of the orthopedic examination and can be used to follow a patient?s progress during rehabilitation and therapy. Usually a swelling is assessed by palpating the joint but a more objective, but still easy to use, method would be preferable.This study seeks to increase the knowledge in veterinary rehabilitation by validating four different measurement tools (three recognized and one novel) for the assessment of elbow joint swelling: palpation, tape measure (circumference and figure eight measurement), slide caliper (craniocaudal and mediolateral positioning) and tonometer. This was achieved by calculating the inter- and intra-rater reliability and correlating the results from the different measurements with each other.The methods with best inter- and intra-rater reliability as well as good correlation among themselves were shown to be slide caliper with craniocaudal positioning, circumference and figure eight. Additional studies, with a larger and more diverse material, ought to investigate these methods further..
Initial evaluation of the Meritas Troponin I test for measurement of equine cardiac troponin I
Cardiac troponin I (cTnI) is considered a specific and a sensitive biomarker of cardiac disease, and due to a high inter-species sequence homology; human cTnI assays can often be used in veterinary medicine. The main aim of this study was to perform an initial evaluation of a human cTnI test, the Meritas Troponin I test, for measurement of equine plasma cTnI, in order to investigate whether the test could be a possible subject for a more comprehensive validation. The hypothesis was that the test could measure equine cTnI, as there is a good homology between equine cTnI and human cTnI.
The evaluation included a dilution parallelism, an intra-assay precision study and measurement of plasma cTnI healthy horses. In the dilution parallelism and the intra-assay precision study, equine plasma with previously established high cTnI concentration, according to another cTnI assay, was used. In addition, cTnI concentration was measured in plasma, collected from 19 horses, without signs of disease at physical and ECG examinations.
The obtained curve in the dilution parallelism was linear, indicating that the Meritas Troponin I test can be used to measure different concentrations of equine cTnI in plasma.
Avståndsvarnare till Mobiltelefon
This report describes a study, description and testing of parts to an application adapted to the operating system Android. The application is supposed to measure the distance to a car ahead. Apart from distance measurements the ability of the application to calculate its own speed with the help of GPS is tested. From these two parameters, speed, distance and some constants the theoretical stopping distance of the car will be calculated in order to warn the driver if the car is too close to the car ahead in relation to its own speed and stopping distance.Tests were conducted on the different applications that were programmed and the result showed that the camera technique in the mobile phone itself limits the maximum distance of the distance measurement application. The max distance the tests in this thesis revealed was approximately 5 meters.
P?verkar intag av ?gg niv?er av trimetylamin-N-oxid i blodet? En systematisk ?versikt
Syfte:
Syftet med denna systematiska litteratur?versikt var att unders?ka det vetenskapliga underlaget kring om regelbundet intag av ?gg p?verkar niv?er av trimetylamin-N-oxid (TMAO) i plasma hos vuxna.
Metod:
En litteraturs?kning genomf?rdes i databaserna PubMed, Scopus och Cochrane Library 25 januari 2023. Inklusionskriterierna var vuxna ?18 ?r, intervention best?ende av ?gg eller ?ggula, kontroll best?ende av ?ggsubstitut/?ggvita/habituell kost/annat livsmedel som inte inneh?ller ?ggula, utfallet TMAO i plasma och studiedesign RCT. Artiklarna skulle vara skrivna p? engelska eller svenska.
Äpplet faller inte långt från trädet : En enkätstudie om elevers motionsvanor och hur dessa påverkar närvaron i Idrott och hälsa
Syftet med studien var att undersöka hur psykosociala faktorer som habitus, socialt kapital, attribution och inlärd hjälplöshet påverkar elevens motionsvanor och aktiva medverkan i ämnet Idrott och hälsa. Genom en enkätstudie på en grundskola och en gymnasieskola samlades 113 enkätsvar in och analyserades.Resultatet av studien pekar på att de undersökta faktorerna spelar stor roll i elevernas livsituation och till viss del deras närvaro i ämnet Idrott och hälsa, även om den på de besökta skolorna varit hög. Föräldrar, vänner och omgivning har stor betydelse för elevernas attityd och inställning till idrottande och tillsammans påverkar de i förlängningen närvaron i Idrott och hälsa.Gällande attributionsteorin finns tydliga kopplingar till olika faktorer, främst inre och yttre faktorer. Det märks tydligt att eleverna begår det fundamentala attributionsfelet då de tillskriver andra elevers frånvaro inre faktorer samtidigt som deras egen frånvaro oftast påstås ha yttre orsaksförklaringar. Tecken finns även på självtjänande bias, omvänd självtjänande bias och self-handicapping.
Mätning i nätstationer - nyttor och problem
The purpose of this study has been to investigate advantages and problems with distributionsystem metering in substations. This report is a study in cooperation with Göteborg Energi.The analyses in this report are made for GENAB, a subsidiary company of Göteborg Energi.To analyse advantages and problems in advance is interesting information for GENAB. Theresult of the report could be based upon whether installation of metering in distributionsubstations will be implemented and in that case which kind of measurement that is relevant.The most relevant and strategic place to implement measurement is at the distributionsubstations on the secondary side (400V), this is due to the placement of the currenttransformers. The measurements in this study involve current, voltage, power, power factor,temperature, energy and power quality.Measuring instruments that are relevant to implement are intended to measure current,voltage, power, power factor, energy and, possibly, power quality in the same measuring unit.It is desirable to have a measuring instrument that measures both energy and power qualitybut since it is most often a cost question, it can be established that energy meters have a lowercost.Metering in distribution substations gives a better illustration of the power network. Thisresults in many advantages for GENAB.
Nordisk börs: ökat inflöde av riskkapital?
Studien undersöker huruvida den nybildade nordiska börsen kommer att få någon påverkan på svenska företags chanser att införskaffa nordiskt riskkapital vid en nyintroduktion. Studien antar en kvalitativ ansats, med intervjuer som huvudsaklig metod för datainsamling. Intervjuer utfördes med åtta stycken investmentbanker som respondenter..