524 research outputs found
Titanium Implants â A Comparison of a Swedish and an Ohio Firm
Two firms in the health care market are studied in a case study of the introduction of two almost identical innovations. The two firms, both in the titanium implant business have been chosen so that they match when it comes to origin, technology and customers. But the diffusion occurred in two different (institutional) environments, the Swedish and the US. The whole process from invention to innovation and diffusion in the market is studied. The analysis takes its starting point in competence bloc theory (a Schumpeterian theory). We find that the institutional environment is crucial for firm growth.invention; innovation; institutional environment; titanium implants
The Exit of Pharmacia and Regional Growth
In this paper we ask whether the withdrawal of a major employer (Pharmacia) from a region in Sweden (Uppsala) has had a negative effect on employment growth. We explore the possibility that the exit of Pharmacia may not have had a negative effect on the total employment in the region. It might be the case that new innovative resources with economic potential have been released due to the withdrawal leading to new firm formation and expansion of existing firms. We find no evidence that the withdrawal has led to a negative effect on employment growth in the region.exit; regional growths; start-ups; entry
Internal frost damage in concrete - experimental studies of destruction mechanisms
The aim of the study was to identify mechanisms acting at internal frost destruction of concrete. By 'internal frost destruction' is meant damage caused inside concrete that is moisture insulated from the surroundings, i.e. when no moisture exchange with the surroundings is possible during freeze-thaw. Thus, the aim was not to investigate destruction processes (scaling) taking place at the surface of concrete exposed to water or salt solution. The aim should be reached by experimental work at which different parameters, that are supposed to influence destruction, such as concrete quality, moisture content, freezing rate, and duration of freezing temperature were varied independently of each other. The effect of these parameters on formation of ice, and on the behaviour of the concrete during freeze-thaw should be monitored. In this way it was imagined that the individual effect of each fundamental parameter could be identified. The aim was to use the experimental results to test different existing destruction theories like the hydraulic pressure theory and the microscopic ice lens theory. The aim was not to build a quantitative model for internal frost destruction
The death of source protection? Protecting journalists' source in a post-Snowden age
This report by Carl Fridh Kleberg was a result of the Polis/ Journalistfonden Fellowship at LSE. It lays out some of the threats to journalistsâ data and sources and presents a range of practical tools to overcome them
COâ-cycle in cement and concrete : Part 7: Models for COâ-absorption. Status, January 2009
Textile architecture â about sound absorbing facades and textiles in urban landscapes
The exhibition âTextile architectureâ features the result of how two architects and a textile designer have collaborated and experimented with designing textile modules to improve the sound landscape in urban spaces.\ua0The exhibition is one of the results of an artistic research project, âUrban Materiality â Towards New Collaborations in Textile and Architectural Designâ, with funding from the Swedish Research Council (Vetenskapsr\ue5det) /Artistic research, that is ongoing from 2016 to 2019.Exhibited at\ua0Form/Design Center in Malm\uf6, vernissage 13 November 2019, exhibition open 13 November 2019 till 12 January 2020
Measuring forest fuel quality for trade and production management
An increased use of forest fuels resulted in a new Timber Measurement Act, specifying the requirements for measurements of these assortments. The law has increased the demands when measuring quality parameters, e.g. moisture and ash content. This thesis aims to a) develop a robust validation method for measurement precision and accuracy; b) validate instruments using electric capacitance (CAP), magnetic resonance (MR), near infrared spectroscopy (NIR), and X-ray technologies for moisture content determination; and c) evaluate the possibility to determine other parameters using x-ray data. The tested instruments had similar measurement precision. All except for the CAP produced 95% of their measurements within less than ± 2.5 percentage points of the mean. The accuracy of moisture content measurements varied between; instruments, moisture content classes, and forest fuel materials, as well as between frozen and unfrozen materials. MR was the only instrument that was not sensitive to fuel material. MR showed the highest measuring accuracy and CAP the lowest. The X-ray instrument could determine ash content and net calorific value, but the latter needed calibration. It was possible to estimate the proportion of fines and median particle size accurately using X-ray data. The capacitance instrument is easy to transport and use in the field, but the other instruments are intended for use at a measurement station.
A calibration of the instruments would benefit from precisely defined fuel assortments, as would the customers, who could use it to optimize combustion. Automated methods to verify the delivered fuel assortment are required, e.g. by NIR or X-ray sensors. The oven-drying method and all studied instruments determine moisture content on samples, and the sampling procedure is crucial to accurately estimate the mean and sample variance. The sampling problem could be minimised if measurements could involve most of the load otherwise a sufficient number of samples must be taken. A cost-efficient measurement procedure requires a balance of sampling intensity vs measurement costs and benefits. A fast moisture measurement procedure that enables customer to optimize combustion can be more cost-effective than the oven-drying method, especially if it provides additional data
TidsbegrÀnsade anstÀllningar - faktorer som pÄverkar sannolikheten att ha ett tidsbegrÀnsat arbete, samt inkomstskillnader mellan fasta och tidsbegrÀnsade jobb
Det finns tvĂ„ kategorier av anstĂ€llningsformer, fasta och tidsbegrĂ€nsade. Andelen tidsbegrĂ€nsade arbeten har ökat under de senaste tvĂ„ decennierna. För den anstĂ€llde kan tidsbegrĂ€nsad anstĂ€llning vara ett ofrivilligt val. AnstĂ€llningsformen innebĂ€r ofta större osĂ€kerhet för individen, men kan Ă€ven innebĂ€ra andra begrĂ€nsningar. Syftet med studien Ă€r att undersöka vilka faktorer som pĂ„verkar sannolikheten att vara tidsbegrĂ€nsat anstĂ€lld, samt att undersöka inkomstskillnader mellan olika anstĂ€llningsformer. För att genomföra studien anvĂ€nds datamaterial frĂ„n arbetskraftsundersökningarna. En binĂ€r och en multinominal logistisk modell anvĂ€nds för att skatta sannolikheter och ett par inkomstregressioner skattas. Studien omfattar Ă„ren 1997 till 2004 och gĂ€ller svenska förhĂ„llanden. Studien visar att Ă„lder och födelseland Ă€r tvĂ„ viktiga faktorer som pĂ„verkar sannolikheten att ha en tidsbegrĂ€nsad anstĂ€llning. Yngre och utlandsfödda har högre sannolikhet att ha ett tidsbegrĂ€nsat arbete, allt annat lika. Ăven sektor, bransch, socioekonomisk status och familjeförhĂ„llanden pĂ„verkar sannolikheten. Det finns ingen signifikant skillnad mellan könen nĂ€r det gĂ€ller sannolikheten att ha en tidsbegrĂ€nsad anstĂ€llning. Delas tidsbegrĂ€nsade anstĂ€llningar upp i olika kategorier framkommer dock skillnader. Kvinnor har högre sannolikhet att ha ett vikariat, men lĂ€gre sannolikhet att ha en prov-, projekt- eller behovsanstĂ€llning i jĂ€mförelse med mĂ€n. Det finns flera teorier som kan förklara olika delar av resultaten, de viktigaste berör fasta arbetskraftskostnader, dual arbetsmarknad, screening, och olika preferenser. Fast anstĂ€llda var den grupp som hade högst Ă„rsarbetsinkomst och behovsanstĂ€llda den grupp som hade lĂ€gst, om kategorin övriga tidsbegrĂ€nsade anstĂ€llda bortses frĂ„n. PĂ„ grund av datamaterialets kvalitet gĂ„r det dock inte att dra nĂ„gon slutsats om huruvida inkomstskillnaderna mellan fast anstĂ€llda och tillfĂ€lligt anstĂ€llda beror pĂ„ skillnader i individ- och jobbkaraktĂ€ristiska eller pĂ„ diskriminering
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