This article presents a survey of techniques for ranking results in search engines, with emphasis on link-based ranking methods and the PageRank algorithm. The problem of selecting, in relation to a user search query, the most relevant documents from an unstructured source such as the WWW is discussed in detail. The need for extending classical information retrieval techniques such as boolean sear

Armeringens placering betyder mycket för om putsen på isoleringen på en fasad spricker. Genom att använda ett bruk med liten krympning i kombination med fiberinblandning kan sprickbildningen reduceras.

Abstract Management of colorectal liver metastases (CRLM) has dramatically changed during the last decade and has now become more multimodal and aggressive, including the use of downstaging chemotherapy, portal vein embolization to increase the function of the liver remnant or both in combination. Radiofrequency ablation is also an option in CRLM, potentially combined with surgical resection. Resu

I Louis Althussers klassiska text "Ideologi och ideologiska statsapparater" är det lagens direkta tilltal som får exemplifiera begreppet interpellation. Genom lagen (och dess representanter i vardagen) görs vi inte bara lika, till medborgare. Vi interpelleras även till en mängd andra, särskiljande identiteter. För att kunna åtnjuta lagens skydd måste våra konkreta livsöden kodas om till abstrakta

OBJECTIVES: /st> To investigate the association between meniscal pathology and incident or enlarging bone marrow lesions (BML) in knee osteoarthritis. METHODS: /st> The authors studied subjects from the Multicenter Osteoarthritis Study aged 50-79 years either with knee osteoarthritis or at high risk of the disease. Baseline and 30-months magnetic resonance images of knees (n=1344) were scored for

The issues involved in supporting real-time wireless Internet services go beyond the problem of forwarding packets to the correct destination of a mobile host. These issues include handover latency, availability of network resources after moving, and a proper charging and accounting infrastructure. Through a survey of current research in these areas, we discuss various concerns of integrating mobi

ABSTRACT: BACKGROUND: Renal function decreases with age. Dosage adjustment according to renal function is indicated for many drugs, in order to avoid adverse reactions of medications and/or aggravation of renal impairment. There are several ways to assess renal function in the elderly, but no way is ideal. The aim of the study was to explore renal function in elderly subjects in nursing homes and

In the present paper we give a general two-dimensional formalism for scattering in a multilayered medium with a finite inhomogeneity present. The formalism is based on the T matrix method, introduced by Waterman [J. Acoust. Soc. Am. 45, 1417 (1969)]. The formalism is developed in detail for the geometries consisting of one layer with an obstacle situated either inside or below the layer. More gene

The subject of this paper is to calculate the fields in a layered earth induced by a current distribution. A general formulation is presented, which contains very few restrictions of the current distribution. For the simplest current distributions (dipole, circular, and rectangular loops) we derive expressions for the fields, which contain a single integral (Sommerfeld type). Numerical computation

A 12-bit 125-MHz digital-to-analog converter (DAC) for communication application is designed. It is based on current-steering segmented architecture and modified Q2 random walk switching scheme to obtain 12-bit accuracy. A new voltage swing reduced driver (VSRD) is implemented to promote the dynamic performance. The DAC uses 0.18 µm 1.8 V standard digital CMOS technology. The die area (core) is 2.

This paper is based on the findings of a research work by Abukhader and Jönson (2004a), who discuss the possibilities and limitations of the ties of postponement strategy in food supply chains. They identified the cases/examples (i.e. company cases) of application of postponement across the various categories of foods: frozen, chilled/fresh and long shelf life. The food industry nowadays is in nee

Objective: To assess whether a genetic risk score that was previously shown to be associated with myocardial infarction and coronary artery disease is also associated with markers of carotid atherosclerosis. Design: A total of 4022 middle-aged subjects from the general Swedish population were genotyped and individually assigned a genetic risk score based on 13 single-nucleotide polymorphisms (SNPs