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The present study deals with free play in preeschool. The purpose is to investigate the way children conceptualize play, and the significance of play in preeschool activities. The latter has been illuminated through an analysis of normative documents, and vatious methods have been worked out that show how the possibilities of play can be made use in preschool. Group interviews with children betwee
A 10-bit 5-MS/s successive approximation ADC cell and a 70-MS/s parallel ADC array based on this cell, designed and fabricated in a 1.2-?m CMOS process, are presented. The ADC cell was designed to have an input bandwidth of more than 35 MHz and a sampling time of 14 nS at a clock rate of 70 MHz. The parallel ADC array consists of 14 such cells which are timed in one clock cycle skew successively i
Fracture mechanics studies of non-yielding materials are presented. The studies are based on theoretical models for the macroscopical mechanical behaviour of materials during tensile stress induced fracture. A number of applied numercal analysis are indicated. Fracture models and strength relations are discussed also from a few more general and fundamental points of view. A number of comparisons a
A stochastic model based on a probability density function (PDF) was developed for the investigation of different conditions that determine knock in spark ignition (SI) engine, with focus on the turbulent mixing. The model used is based on a two-zone approach, where the burned and unburned gases are described as stochastic reactors. By using a stochastic ensemble to represent the PDF of the scalar
One major problem for integrating study results into a common body of knowledge is the heterogeneity of reporting styles: (1) It is difficult to locate relevant information and (2) important information is often missing. Reporting guidelines are expected to support a systematic, standardized presentation of empirical research, thus improving reporting in order to support readers in (1) finding the
The paper discusses the solution to the optimal adaptive control problem over an extended time horizon. This leads to a controller that have dual features, i.e., tt uses control actions as well as probing actions. The solution of the optimal dual control problem is intractable from a computational point of view. Approximations to obtain simpler suboptimal dual controllers are thus important. There
Gift-for-sex (GFS) barters are a niche practice potentially representing the commodification of everyday dating practices. We inquire how GFS exchanges are practiced and understood in contemporary Russia. Second, we situate these in relation to contemporary economic culture. Our project provides answers in two steps based on online content. First, we identify GFS exchange practices within a major
In this paper, the critical factors behind commercialization of new product development (NPD) are investigated in order to add to our understanding of what drives and hampers the commercialization of new products and services. With the illustration of nine cases of commercialization from three multinational organizations, an initial framework of three categories of factors related to the success o
Popular Abstract in Swedish Förståelse av väldigt snabba proceeser i molekyler utgör grunden inom modern kemi. Jonisation och excitation av en molekyl med en foton startar en nukleär dynamisk process som åtföljs av elektroniskt sönderfall och fragmentering av molekylen. En rörelsemändsvektor-spektrometer har utveclats som används för att mäta massa, laddning, energi och hastighet av joniska fragmeA momentum imaging spectrometer optimized for photoionization experiments with synchrotron radiation was built in 2008. The spectrometer is equipped with an electrostatic lens, that focuses the charged dissociation products on to a position-sensitive multi-hit delay line anode. The possibility of focusing is essential for most applications, where fragment momentum is to be extracted. The apparatus
There are many good practice examples in sustainable tourism, but the difficulty is how they can be transparently measured, monitored and disseminated. The study aims to develop a measurement system for good practice in sustainable tourism, meanwhile to make some contribution to the monitoring and reporting system. In order to accomplish this, the thesis allocates good practice examples into a Sus
Corruption is at present costing the European society enormously amounts, in forms of money and in relation to social, economic, political and legal development. Democracy is viewed as one of the fundamental pillars of the European Union, which additionally has been one of the Union’s highest priorities since its foundation. One aspect that may be hindering the increasing of democracy is a state’s
Sammanfattning Vi har gjort en kvalitativ studie och intervjuat individer med en tidigare missbruksproblematik och kriminellbakgrund. Alla utom en av intervjupersonerna har deltagit i ett 12-stegsprogram. Det finns hjälp att få som missbrukare genom behandling, men det är ändå inte alla som klarar av att sluta fast den hjälpen finns. Det är viktigt och intressant att undersöka varför det är så. VWe have made a qualitative study that started from interviewees with substance abuse problems. All of the interviewees have a background as criminals and addicts and three of them have participated in twelve-step program. There is treatment that is intended to support and help addicts, but it's still not all that manage to get out of their addiction. That makes it important and interesting to
Early life environments shape phenotypic development in important ways that can lead to long-lasting effects on phenotype and fitness. In reptiles, one aspect of the early environment that impacts development is temperature (termed 'thermal developmental plasticity'). Indeed, the thermal environment during incubation is known to influence morphological, physiological, and behavioral traits, some o
In atherogenesis, free oxygen radicals cause a lipid peroxidation of apoB100-containing lipoproteins in the blood, at the blood–endothelium-interface and in the subendothelial space. These lipoproteins easily aggregate, bind to their receptor heparan sulfate proteoglycan and calcify to arteriosclerotic nanoplaques (ternary complexes). Nanoplaque formation was measured by ellipsometry, both in vitr
With 450,000 km2 Kobresia (syn. Carex) pygmaea dominated pastures in the eastern Tibetan highlands are the world's largest pastoral alpine ecosystem forming a durable turf cover at 3000–6000 m a.s.l. Kobresia's resilience and competitiveness is based on dwarf habit, predominantly below-ground allocation of photo assimilates, mixture of seed production and clonal growth, and high genetic diversity.
3D Direct Numerical Simulations of propagation of a single-reaction wave in forced, statistically stationary, homogeneous, isotropic, and constant-density turbulence, which is not affected by the wave, are performed in order to investigate the influence of the wave development on scaling (power) exponents for the turbulent consumption velocity UT as a function of the rms turbulent velocity u′, lam
Owing to an increasing shortage of donor organs, the majority of patients with end-stage kidney disease remains reliant on extracorporeal hemodialysis (HD) in order to counter the lifelong complications of a failing kidney. While HD remains a life-saving option for these patients, mounting evidence suggests that it also fuels a vicious cycle of thromboinflammation that can increase the risk of car
In 2001 the Doha Round Talks was initiated by the World Trade Organization. Development was the overarching goal. For several developing countries with a comparative advantage in agriculture, trade with such products is seen as essential to economic growth and thus development. In order to spur this development it appears to be particularly important that developing countries have increased access
The purpose of this thesis was to study descriptions of companies on their webpages on the Internet. This was performed from a socialconstructionist point of view with focus being on subject positionings and gender. A critical discourse analysis was carried out on two texts from the webpages of two organizations on the Internet. Using the three dimensional model for critical discourse analysis by
This study examines the roles of transitional justice and reconciliation in post-conflict societies and the relationship between these two concepts. There seem to be a widespread pessimism regarding the possibility of combining these two concepts in a post-conflict situation due to what is described as a fundamental tension between justice and reconciliation. However, I find that the connection an
