| 1. |
- Nilsson, Magnus, et al.
(författare)
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A 9-band WCDMA/EDGE transceiver supporting HSPA evolution
- 2011
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Ingår i: [Host publication title missing]. - 0193-6530. ; , s. 366-368
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Konferensbidrag (refereegranskat)abstract
- The future of cellular radio ICs lies in the integration of an ever-increasing number of bands and channel bandwidths. This paper presents a transceiver together with the associated discrete front-end components. The transceiver supports 4 EDGE bands and 9 WCDMA bands (l-VI and Vlll-X), while the radio can be configured to simultaneously support the 4 EDGE bands and up to 5 WCDMA bands: 3 high bands (HB) and 2 low bands (LB). The RX is a SAW-less homodyne composed of a main RX and a diversity RX. To reduce package complexity with so many bands, we chose to minimize the number of ports by using single-ended RF interfaces for both RX and TX. This saves seve ral package pins, but requires careful attention to grounding. The main RX has 8 LNA ports and the diversity RX has 5, with some LNAs supporting multiple bands. On the TX side, 2 ports are used for all EDGE bands and 4 for the WCDMA bands.
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| 2. |
- Påhlsson, Fredrik
(författare)
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Likvärdig bedömning i musik : lägesbeskrivning av arbete med likvärdig bedömning av musikaliska kunskaper i grundskolans obligatoriska musikkurs
- 2011
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- A major dilemma for music teachers in Sweden is that the educational system since 15 years dictates that local adaptations should be made, since all students shall be assessed equivalently. In this study I have examined what strategies music teachers have in the grading process, and specifically how they do to grade equivalently. Previous research shows that Swedish music teachers have difficulties when it comes to make use of regulatory documents. Working conditions for Swedish music teachers also often differ from other teacher groups (e.g. it is usually only one music teacher at a school) and therefore, and because of the fact that the area is largely unexplored, new knowledge and understanding is needed.The thesis consists of two parts: A web survey (quantitative and qualitative parts) and core questions in the survey (on how to grade equivalently in music). I emanate in my reasoning from a music teacher’s awareness but with an open approach. With socioculture influences and a critical approach I question the prevailing circum- stances. With the qualitative approach, I aim to get close to the material and identify music teachers' strategies for assessment in accordance with the requirements of national equivalence.More than 600 music teachers contributed to the survey, representing around 50% of all final grades that are written each year in Swedish compulsory school music. The outcomes show that during the last decade an ongoing professionalization has taken place among music teachers. The findings also include knowledge about how impor- tant note taking is for equivalence and the problems music teachers have with physi- cal conditions for the teaching (such as group sizes and instrumentation). Also the gut felling, as a cultural tool, is observed in a particular way in the assessment work. Last, the picture of “music teachers as their own curriculum” is suggested to be revised. Since music teachers need to adjust to local conditions, and now have a greater knowledge and experience in the mechanism of grading equivalently, it is suggested that music teachers are forced to be their own curriculum.
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| 3. |
- Påhlsson, Henrik, et al.
(författare)
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Mot koldioxidsnåla godstransporter-tillväxtdynamiskt perspektiv på logistik och godstransporter fram till 2050 : Tillväxtdynamiskt perspektiv på logistik och godstransporter fram till 2050
- 2013
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Det är både tekniskt möjligt och ekonomiskt genomförbart att ställa om till ett CO 2-snålt samhälle2050. Men för att nå en sådan målsättning måste ett antal utmaningar och hinder övervinnas, vilketkan kräva både politisk styrning och institutionell förändring.Denna rapport fokuserar specifikt på samspelet mellan utvecklingen av godstransporter, logistik ochCO 2-utsläpp. Godstransporterna, som styrs och kontrolleras av varuägande företag och aktörer påtransportmarknaden, står för 10-16 % av Sveriges totala CO 2-utsläpp. Trenden för CO 2-utsläpp frångodstransporter är dessutom ökande. Enligt prognoser gjorda på traditionell basis förväntasgodstransporterna fortsätta stiga i takt med BNP så att de blir dubbelt så omfattande 2050. En sådanutveckling står i stark kontrast till de klimatpolitiska mål som Sverige och EU fastslagit som kräverdramatiska minskningar av utsläppen. Den svenska målsättningen för 2030 innebär att CO 2-utsläppenska minska till 20 % av nivån 1990. Det svenska slutmålet för år 2050 innebär nästan en fullständigreduktion av utsläpp av växthusgaser, ett mål som ser svårnått ut med utgångspunkt i prognoserna.
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