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Codes on Graphs and More

Popular Abstract in Swedish ``Att fela ör mönskligt...'' är början på en sentens som antyder att det krävs någit ytöver det mänskliga för att korrigera fel; sanningen är att det är lika naturligt för människan at korrigera fel som det är att fela, vilket belyses i detta stycke. Trots ett flertal skrivfel är innebörden av texten entydig. Detta beror naturligtvis på att meningsfull svensk text svaraModern communication systems strive to achieve reliable and efficient information transmission and storage with affordable complexity. Hence, efficient low-complexity channel codes providing low probabilities for erroneous receptions are needed. Interpreting codes as graphs and graphs as codes opens new perspectives for constructing such channel codes. Low-density parity-check (LDPC) codes are one

Clinical Factors Associated with Intracranial Complications after Pediatric Traumatic Head Injury: An Observational Study of Children Submitted to a Neurosurgical Referral Unit.

Background: Clinically validated guidelines for the management of head injury in children do not exist, and the treatment is often based upon adult management routines. In order to examine the safety of this procedure, an analysis of clinical factors associated with complications after pediatric head injury was attempted. Method: We performed a descriptive retrospective study, including patients w

Compression of the lower trunk of the brachial plexus by a cervical rib in two adolescent girls: case reports and surgical treatment.

ABSTRACT: Presence of a cervical rib in children is extremely rare, particularly when symptoms of compression of the lower trunk of the brachial plexus occur. We present two cases with such a condition, where two young girls, 11 and 16 years of age were treated by resection of the cervical rib after a supraclavicular exploration of the lower trunk of the brachial plexus. The procedure led to succe

Grått, tråkigt, totalkriminellt? Diplomatiska beskrivningar av Polen – en fallstudie

Den omtalade globaliseringen förknippas inte bara med snabba finansiella rörelser utan också med ökat antal möten mellan etniska och nationella grupper. Beskrivningen av en sådan ökad kommunikation är ett stående inslag i såväl debatt (Martin & Schumann 1997) som samhällsvetenskaplig teoridiskussion (Bauman 1998, Beck 1998). Samtidigt anses det etniska identitetsbegreppet ha försvagats eller f

The Icelandic noun phrase: central traits

Since Abney (1987), generative syntax has invested much interest in the structure of the Noun Phrase, producing numerous theoretical as well as descriptive studies. Within the field of Scandinavian Noun Phrase studies, Delsing (1993) was a groundbreaking work that has since been followed up by several important studies, including Vangsnes et al. (2003) and Julien (2005). This field of inquiry is e

The earliest thymic T cell progenitors sustain B cell and myeloid lineage potential.

The stepwise commitment from hematopoietic stem cells in the bone marrow to T lymphocyte-restricted progenitors in the thymus represents a paradigm for understanding the requirement for distinct extrinsic cues during different stages of lineage restriction from multipotent to lineage-restricted progenitors. However, the commitment stage at which progenitors migrate from the bone marrow to the thym

Porous Silicon -an enzyme coupling matrix for micromachined reactors

Popular Abstract in Swedish Avhandlingen beskriver forskningen kring miniatyriserade enzymreaktorer - nyckelkomponenter i system för diabetsövervakning. Målet är att systemet kontinuerligt och under flera dagar skall kunna mäta glukosstatus hos bäraren. Provtagningstekniken för systemet är mikrodialys; en prob instucken i bukfettvävnaden ger ett prov som innehåller glukos. Analysen av detta prov sThe development of a miniaturised silicon wafer integrated enzyme reactor is described. The reactor was micromachined by anisotropic wet etching of (110) silicon. The enzyme glucose oxidase (GOx) was coupled to the reactor surface with standard methods of immobilising enzyme to silica. The glucose turn-over rate was monitored following a colourimetric assay. The advantage, in terms of high surface

Porous Silicon Microbioreactors - Applications and Technology

Microfluidic systems have become one of the most interesting fields in the research of chemical analysis. Miniaturized systems exhibit numerous practical advantages when compared with traditional batch-scale synthesis such as lower sample volumes, increased control of the reactions and higher sample throughput. This thesis describes the development and applications of a parallel channel microreact