Today independent publishers are offering digital libraries with fulltext archives. In an attempt to provide a single user-interface to a large set of archives, the studied Article-Database-Service offers a consolidated interface to a geographically distributed set of archives. While this approach offers a tremendous functional advantage to a user, the fulltext download delays caused by the networ

During the last years there has been reported considerable and rapid contamination on newly built rendered façades in Sweden due to biological growth. The problem is believed to occur mostly on façades of render applied on thermal insulation, but apart from this it is difficult to find clear relationships indication which façades might be infected. The aim of this project is to explain why certain

Datortomografi av kolon (DT-kolografi) är en ny tillämpning av datortomografi, som gör det möjligt att med hög diagnostisk säkerhet upptäcka tumörer och polyper större än 10 mm. Metoden medför mindre obehag och smärta än koloskopi och kolonröntgen. Behovet av tarmrengöring är dock detsamma. DT-kolografi kan, som initial undersökning vid misstanke om maligna förändringar eller kolonpolyper, komma a

A novel high precision method measures the b-quark forward-backward asymmetry at the Z pole on a sample of 3,560,890 hadronic events collected with the DELPHI detector in 1992 to 2000. An enhanced impact parameter tag provides a high purity b sample. For event hemispheres with a reconstructed secondary vertex the charge of the corresponding quark or anti-quark is determined using a neural network

Cardiac signal analysis during hemodialysis

Aggregates of proteoglycans from the Swarm rat chondrosarcoma reassembled in vitro have been studied by rotary-shadowing electron microscopy, and shown to be similar to native structures that have never been dissociated [Morgelin, Engel, Heinegard and Paulsson (1992) J. Biol. Chem. 267, 14275-14284]. A hyaluronate with defined chain length (HAshort) has now been prepared by autoclaving high-Mr hya

OBJECTIVE: The validity of the Ross operation as freestanding root replacement in adult patients with bicuspid aortic valve disease has lately been questioned. We have analyzed retrospectively our results in 23 adult patients (19 males) operated for bicuspid aortic valve disease ad modum "Ross" employing a freestanding root replacement technique. DESIGN: In 9 patients the dominant aortic valve les

OBJECTIVE: We examined the association between total tooth loss and bone mineral density to determine whether the former can be used as a surrogate marker of the latter. DESIGN: A community based cross-sectional survey. SETTING: The community-study area of the Faculty of Medicine, Galle. PARTICIPANTS: A group of randomly selected 327 women volunteers aged 32 to 97 years. MEASUREMENTS: Anthropometr

Den utbildningsvetenskapliga forskningen har ofta en normativ ton och lanserar idéer om hur skolan borde vara, hur undervisning borde bedrivas, hur människor borde lära och om hur skolor borde ledas. Utbildningsvetenskaplig forskning skulle tjäna på att vara mindre normativ och mer empirisk och analytisk. I doktorsavhandlingen En riktig rektor. Om ledarskap, genus och skolkulturer, som Josefin Brü

The cytokine transforming growth factor beta-1 (TGFbeta1), was transfected into a TGFbeta1-negative rat colon carcinoma. The growth of isografts of TGFbeta1-expressing tumors was compared to that of vector control transfectants. The TGFbeta1 transfectant grew significantly more slowly after intrahepatic isografting than did vector control and wild-type tumors. The TGFbeta1-transfected tumor tissue

Breast cancer is the most common malignancy in women in the Western world with about 10% of women developing breast cancer during their lifetime, of which one third will eventually succumb to the metastatic form of the disease. Breast cancer arises from the epithelial cells of the breast mammary gland, but the mechanisms involved in tumor initiation, progression, and metastasis are still not fully

This paper is an attempt to further our understanding of mechanisms conceived of as ontologically separable from laws. What opportunities are there for a mechanistic perspective to be independent of, or even more fundamental than, a law perspective? Advocates of the mechanistic view often play with the possibility of internal and external reliability, or with the paralleling possibilities of enfor

The catalytic cracking of ethanol on clean and oxygen precovered Rh(1 1 1) surfaces has been studied by a combination of synchrotron based high-resolution core level spectroscopy and surface infrared spectroscopy. On the clean surface the decomposition of ethanol occurs without any formation of atomic oxygen. The presence of oxygen on the surface changes the reactivity significantly and previous t

Uninformed buyers' demand for statistical screening between privately informed sellers is studied in a fixed price market. A single buyer will screen more extensively than would two or more buyers, since in the latter case buyers realize that sellers will be attracted to buyers with the most favorable screening policy (i.e., not to screen at all). This result is robust to some but not all types of