Search results

Filter

Filetype

Your search for "*" yielded 532240 hits

Analysis-by-synthesis speech coding with quantization noise modeling

Iii analysis-by-synthesis linear predictive coding (AbS-LPC) an LPC synthesis filter is combined with an analysis-by-synthesis search of the excitation signal. The synthesis filter is an estimator for the speech signal given the excitation. However in most AbS-LPC algorithms this estimator has no explicit model of the quantization noise, which is present in the excitation signal. This paper descri

Chips on wafers, or packing rectangles into grids

A set of rectangles S is said to be gridpacked if there exists a rectangular grid (not necessarily regular) such that every rectangle lies in the grid and there is at most one rectangle of S in each cell. The area of a grid packing is the area of a minimal bounding box that contains all the rectangles in the grid packing. We present an approximation algorithm that given a set S of rectangles and a

Mechanisms for Targeting of Proteins to Secretory Lysosomes of Haematopoietic Cells

Popular Abstract in Swedish Kroppens immunförsvar, vars uppgift är att skydda oss mot infektioner, består av ett antal olika celltyper som till stor del finns i blodet. Immunförsvaret kan indelas i två delar; ett medfött försvar som är likadant hos alla individer och ett försvar som byggs upp under individens livstid. Det senare utformas olika beroende på vilka bakterier och virus som individen utThe cells of the innate immune system are essential for the host's first line defence against infection. Among these cells the neutrophil granulocyte has a central role by the production of antibiotic proteins and peptides. These are targeted for storage in secretory lysosomes and other neutrophil granules for subsequent release by regulated secretion in an inflammatory process. However, the granu

Invading herbivory: The golden apple snail alters ecosystem functioning in Asian wetlands

We investigated the effects of an exotic snail, the golden apple snail (Pomacea canaliculata) on biodiversity and ecosystem functioning in tropical wetland ecosystems. This large snail (up to 80-mm shell height) has invaded large parts of Southeast Asia during recent decades. A survey of natural wetlands in Thailand showed that high densities of the snail were associated with almost complete absen

Optimized density gradient separation of leukocyte fractions from whole blood by adjustment of osmolarity

Some of the compounds used for density gradient separation of blood cells have high osmolarities at the concentrations needed to create the required specific densities. Several mixed media use a combination of hyperosmolar shrinkage and red cell aggregation to improve cell separation. Due to the characteristics of Percoll density gradient medium the density and osmolarity of the gradient can be co

Terrence Malick

Essä om Terrence Malicks karriär och särpräglade berättarteknik.

Role of cyclin D1 as an estrogen receptor cofactor and the influence of hypoxia on estrogen receptor regulation, with focus on prognositic and treatment predictive features in breast cancer

Popular Abstract in Swedish Målsättningen med detta avhandlingsarbete har varit att undersöka cyklin D1 och HIF-1 i förhållande till ÖR i brösttumörer. Ytterligare en målsättning var att undersöka om cyklin D1 och HIF-1 kan påverka utfallet av tamoxifenbehandling i kliniska bröstcancerstudier. I delarbete 1 fann vi att i ÖR-positiva tumörer med områden där tumörcellerna faktiskt var ÖR-negativa, Estrogen receptor (ER) status can define breast cancer patients who would benefit from adjuvant tamoxifen therapy. However, resistance to tamoxifen is often observed and possible mechanisms may be loss or reduction of ER, dysfunctional ER- signaling and ligand independent activation of the receptor. Hypoxia and hypoxia inducible factor-1? (HIF-1) expression has been correlated to loss of ER in bre

Importance of bone graft quality for implant integration after maxillary sinus reconstruction

OBJECTIVE: The aim of this study was to determine whether bone quality, as assessed by osteometry and histologic parameters, can be used to predict implant integration in conjunction with maxillary sinus reconstruction. STUDY DESIGN: Twelve patients with severely atrophied maxillary alveolar processes were treated through use of a two-stage surgical reconstructive strategy with implant placement 4

In vitro measurements of optical properties of porcine brain using a novel compact device

Knowledge of the optical properties of tissues can be applied in numerous medical and scientific fields, including cancer diagnostics and therapy. There are many different ways of determining the optical properties of turbid media. The paper describes measurements of the optical properties of porcine brain tissue using novel instrumentation for simultaneous absorption and scattering characterisati

Folkhälsopedagogen söker legitimitet. Ett möte mellan pedagogik och verskamhetsförlagd utbildning.

Det folkhälsopedagogiska programmet vid högskolan i Kristianstad startade 1998 och kan ses som ett svar på de nya krav som samhället ställer på kompetens inom hälsoområdet, där sjukvårdande insatser ska ersättas eller kompletteras med hälsofrämjande arbete och där den pedagogiska dimensionen har ansetts särskilt viktig. Förutom att utbildningen ska vara relevant för den kommande yrkesfunktionen måThe aims of this thesis were to study how the students in the work experience period of The Study Program in Public Health and Education experienced how the discipline of education could contribute to health promotion in practice and if whether the integration between theory and practice in this case reached the appropriate higher education standard. The data collection comprised semi-structured i

Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2

In the reaction e(+)e(-) -> WW -> (q(1) (q) over bar (2))(q(3)(q) over bar (4)) the usual hadronization models treat the colour singlets q(1)(q) over bar (2) and q(3)(q) over bar (4) coming from two W bosons independently. However, since the. nal state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon

Polynomial time approximation schemes for max-bisection on planar and geometric graphs

The max-bisection and min-bisection problems are to find a partition of the vertices of a graph into two equal size subsets that, respectively, maximizes or minimizes the number of edges with endpoints in both subsets. We design the first polynomial time approximation scheme for the max-bisection problem on arbitrary planar graphs solving a long-standing open problem. The method of solution involv

Changes of cartilage and bone markers after intraarticular glucocorticoid treatment with and without postinjection rest in patients with rheumatoid arthritis

Background: Joint immobilisation improves the therapeutic effect of intra-articular glucocorticoid injection for knee synovitis. This may be due to retarded steroid resorption by immobilisation, a procedure that also could influence cartilage and bone metabolism. Objective: To evaluate changes in cartilage and bone turnover after intra-articular glucocorticoid treatment for knee synovitis with and

Cell chromatography: Separation of different microbial cells using IMAC supermacroporous monolithic columns

Supermacroporous monolithic columns with CU2+-IDA ligands have been successfully used for chromatographic separation of different types of microbial cells. The bed of monolithic matrix is formed by a cryogel of poly(acrylamide) cross-linked with methylenebis(acrylamide) and has a network of large (10- 100 mu m) interconnected pores allowing unhindered passage of whole cells through the plain cryog

A novel mutation in the β-protein coding region of the amyloid β-protein precursor (APP) gene

A novel mutation, a C to T transition at base pair 2124 in exon 17 of the amyloid beta-protein precursor (APP) gene, has been identified by direct sequencing of amplified DNA from two Alzheimer's disease (AD) patients. A simple oligonucleotide-hybridization procedure was developed to allow population studies of this DNA variation. The mutation, which is silent at the protein level, was present in