942 resultados para light feedback
Resumo:
Vårt syfte med studien är att undersöka hur enhetschefer anser att de ger och hur de får positiv feedback och i hur stor utsträckning det förekommer. Vi har valt att göra studien i en kommun, inom vård och omsorg, där enhetscheferna har samma chef och finns i samma verksamhet. Vår frågeställning: Förekommer positiv feedback och i sådana fall i vilken typ av kommunikationsform?I vilken utsträckning förekommer positiv feedback?Hur upplever enhetschefen positiv feedback?Vi har valt att använda en kvalitativ metod och göra intervjuer med semi- strukturerade frågor. Undersökningen genomfördes med att vi intervjuade nio enhetschefer inom vård och omsorg i en kommun. Vi har sammanfattat intervjuerna, där redovisar vi allmänt om enhetschefernas arbete och vad de säjer om positiv feedback.I analysen väver vi ihop resultatet av undersökningen med teori. De teorier vi använt oss av i studien är symbolisk interaktion, ledarskap, makt, motivation, kommunikation och feedback. Positiv feedback förekommer, men uppfattas olika av enhetscheferna utifrån deras synsätt och behov. Att ge och få positiv feedback sker både muntligt och skriftligt och har en effekt på både enhetschefer och medarbetare anser enhetscheferna. Det är väldigt individuellt vad positiv feedback betyder för varje enskild enhetschef.
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Recent developments in biological research, has shown that the initial maximum permissible exposure (MPE) limits for protection of workers from risks associated with artificial optical radiations were more stringent than needed. Using the most recent MPE limits for artificial optical radiation this piece of work was focused on the investigation of the level of visible light attenuation needed by automatic welding filters in case of switching failure. Results from the comparison of different exposure standards were employed in investigating the need of Vis/IR and blue light transmittance requirement for automatic welding filters. Real and arbitrary spectra were taken into consideration for the worst and best case scenarios of artificial optical radiations. An excel worksheet developed during the execution of this project took into consideration the exposure from different light sources and the precision of the spectrometer used in measuring the transmittances of a welding filter. The worksheet was developed and tested with known product properties to investigate the validity of its formulation. The conclusion drawn from this project was that attenuation in the light state will be needed for products with the darkest state shade 11 or higher. Also shown is that current welding filter protects the eye well enough even in the case of switching failure.
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This paper is focusing IT-supported real-time formative feedback in a classroom context. The development of a Student and Teacher Response System (STRS) is described. Since there are a number of obstacles for effective interaction in large classes IT can be used to support the teachers aim to find out if students understand the lecture and accordingly adjust the content and design of the lecture. The system can be used for formative assessment before, during, and after a lecture. It is also possible for students to initiate interaction during lectures by posing questions anonymously. The main contributions of the paper are a) the description of the interactive real-time system and b) the development process behind it.
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The paper analyses empirical performance data of five commercial PV-plants in Germany. The purpose was on one side to investigate the weak light performance of the different PV-modules used. On the other hand it was to quantify and compare the shading losses of different PV-array configurations. The importance of this study relies on the fact that even if the behavior under weak light conditions or the shading losses might seem to be a relatively small percentage of the total yearly output; in projects where a performance guarantee is given, these variation can make the difference between meeting or not the conditions.When analyzing the data, a high dispersion was found. To reduce the optical losses and spectral effects, a series of data filters were applied based on the angle of incidence and absolute Air Mass. To compensate for the temperature effects and translate the values to STC (25°C), five different methods were assessed. At the end, the Procedure 2 of IEC 60891 was selected due to its relative simplicity, usage of mostly standard parameters found in datasheets, good accuracy even with missing values, and its potential to improve the results when the complete set of inputs is available.After analyzing the data, the weak light performance of the modules did not show a clear superiority of a certain technology or technology group over the others. Moreover, the uncertainties in the measurements restrictive the conclusiveness of the results.In the partial shading analysis, the landscape mounting of mc-Si PV-modules in free-field showed a significantly better performance than the portrait one. The cross-table string using CIGS modules did not proved the benefits expected and performed actually poorer than a regular one-string-per-table layout. Parallel substrings with CdTe showed a proper functioning and relatively low losses. Among the two product generations of CdTe analyzed, none showed a significantly better performance under partial shadings.
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The starting point for this work was a discussion between my supervisor and myself during my teaching training. The discussion concerned the appropriateness of allowing students make films with sexual content. Film gives young people the opportunity to express their feelings and broaden their views. If the film then disseminates to unknown people via in-ternet, which it most likely will do, maybe it is no longer so positive. The aim of this study is to shed light on various aspects of identity and ethics that are important to keep in mind when young people in school make films. These aspects are to avoid making young people vulnerable to abuse and improper influence. One aim is also to highlight the advantages of making films in school. The study is inspired by hermeneutic interpretive and based on qualitative interviews. The informants are four students at the age of 18-19 at two different schools in one municipality in Sweden.The results of the study show that it is important for the informants that the films are pro-duced in an aesthetically good way so that it appeals to the audience. Two of the infor-mants have a specific audience and make more conscious choices, so that the audience will understand what is said. The study shows that the more a filmmaker considers the audi-ence, the more consciously he or she uses film as communication. To get positive feedback is important, but it is mostly friends of the filmmakers that actually comment. To get nega-tive comments is regarded as a disadvantage when placing material on the internet. Howev-er, none of the informants in the study have received negative comments on what has been posted. The opinions about what the informants believe is inappropriate to post on inter-net or to make films about regards sexuality and violations. Earlier studies show that mate-rial can, because it is interesting to other people, become widespread. For this reason it is important for teachers to have conversations with students about their preferences and opinions on various issues. Adults need to interfere in the young people's world, while be-ing open to their opinions. Then the young people's value system will be built up and give them a safe tool that helps them to avoid improper influence.
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This paper is focusing IT-supported real-time formative feedback in a classroom context. The development of a Student and Teacher Response System (STRS) is described. Since there are a number of obstacles for effective interaction in large classes, IT can be used to support the teachers aim to find out if students understand the lecture and accordingly adjust the content and design of the lecture. The system can be used for formative assessment before, during, and after a lecture. It is also possible for students to initiate interaction during lectures by posing questions anonymously. The main contributions of the paper are a) the description of the interactive real-time system and b) the development process behind it.
Resumo:
I studien undersöks hur lärare ger elever muntlig och skriftlig feedback på uppgiftsnivå i matematikundervisningen. För att undersöka detta har observationer och intervjuer av kvalitativ karaktär utförts med sex lärare som undervisar i årskurs 1-3. Insamlade och avbildade dokument i form av elevers räkneböcker har också varit en del av datainsamlingsmetoden. För att på bästa sätt undersöka och besvara studiens frågeställning har grundad teori valts ut och använts som forskningsansats. Utifrån insamlad data och med substantiv och teoretisk kodning som verktyg har en teoretisk modell utvecklats. Modellen visar att muntlig och skriftlig feedback som ges från lärare till elev på uppgiftsnivå kan vara antingen direkt eller indirekt. Beroende på om feedbacken är muntlig eller skriftlig, direkt eller indirekt, kan den också vara bekräftande, uppmuntrande, upprepande, informerande, stöttande eller uppmanande. Detta resultat redovisas med hjälp av en så kallad "fyrfältare". Värt att notera är också att resultatet i studien visar att muntlig feedback ges i betydligt högre grad än skriftlig feedback. Ett par slutsatser som dras utifrån studiens resultat är att verkligheten skiljer sig från hur tidigare forskning förespråkar att feedback bör komma till uttryck i klassrummet och att elevernas ålder samt lärarnas tid spelar en avgörande roll för vilken sorts feedback som ges. En annan viktig slutsats som också dras utifrån studiens redovisade resultat är att vissa kategorier av feedback är mer effektiva för elevers lärande i matematik än andra.
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Forest nurseries are essential for producing good quality seedlings, thus being a key element in the reforestation process. With increasing climate change awareness, nursery managers are looking for new tools that can help reduce the effects of their operations on the environment. The ZEPHYR project, funded by the European Commission under the Seventh Framework Programme (FP7), has the objective of finding new alternatives for nurseries by developing innovative zero-impact technologies for forest plant production. Due to their direct relationship to the energy consumption of the nurseries, one of the main elements addressed are the grow lights used for the pre-cultivation. New LED luminaires with a light spectrum tailored to the seedlings’ needs are being studied and compared against the traditional fluorescent lamps. Seedlings of Picea abies and Pinus sylvestris were grown under five different light spectra (one fluorescent and 4 LED) during 5 weeks with a photoperiod of 16 hours at 100 μmol∙m-2∙s-1 and 60% humidity. In order to evaluate if these seedlings were able cope with real field stress conditions, a forest field trial was also designed. The terrain chosen was a typical planting site in mid-Sweden after clear-cutting. Two vegetation periods after the outplanting, the seedlings that were pre-cultivated under the LED lamps have performed at least as well as those that were grown under fluorescent lights. These results show that there is a good potential for lightning substitution in forestry nurseries.
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Denna studie undersöker hur feedback på uppgiftsnivå respektive processnivå kan utveckla elevers resonemang när eleverna arbetar med problemlösningsuppgifter inom matematiken. De typer av resonemang som undersöks är algoritmiska och kreativa matematiska resonemang. Åtta elevpar från årskurs 5 fick arbeta med problemlösningsuppgifter och fick efterhand de behövde feedback på uppgiftsnivå eller processnivå. Efter genomförandet analyserades vilken resonemangstyp eleverna använde före och efter feedback på uppgiftsnivå respektive processnivå getts. Resultaten visar att elever som får feedback på processnivå i större utsträckning utvecklar fullständiga kreativa matematiska resonemang jämfört med de elever som får feedback på uppgiftsnivå.
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BACKGROUND: Shared decision-making (SDM) is an emergent research topic in the field of mental health care and is considered to be a central component of a recovery-oriented system. Despite the evidence suggesting the benefits of this change in the power relationship between users and practitioners, the method has not been widely implemented in clinical practice. OBJECTIVE: The objective of this study was to investigate decisional and information needs among users with mental illness as a prerequisite for the development of a decision support tool aimed at supporting SDM in community-based mental health services in Sweden. METHODS: Three semi-structured focus group interviews were conducted with 22 adult users with mental illness. The transcribed interviews were analyzed using a directed content analysis. This method was used to develop an in-depth understanding of the decisional process as well as to validate and conceptually extend Elwyn et al.'s model of SDM. RESULTS: The model Elwyn et al. have created for SDM in somatic care fits well for mental health services, both in terms of process and content. However, the results also suggest an extension of the model because decisions related to mental illness are often complex and involve a number of life domains. Issues related to social context and individual recovery point to the need for a preparation phase focused on establishing cooperation and mutual understanding as well as a clear follow-up phase that allows for feedback and adjustments to the decision-making process. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: The current study contributes to a deeper understanding of decisional and information needs among users of community-based mental health services that may reduce barriers to participation in decision-making. The results also shed light on attitudinal, relationship-based, and cognitive factors that are important to consider in adapting SDM in the mental health system.
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A look at the role that symbolism plays in the novel. In this case, as it is in many other great novels, we see that symbolism is used to enhance the mood and the atmosphere of the novel rather than adding anything of importance to the plot.
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