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Severe child abuse: a study of cases reported to the police

Aim: To investigate the characteristics of severe abuse of children and possible differences in comparison with less severe abuse. Method: Cases of abuse reported to the police within a single police district (n = 142) in Sweden were studied. The severe cases were compared to all the remaining cases. Results: Severe abuse constituted 14% of the total cases and was reported by agencies to a greater

In search of human-associated bacterial pathogens in antarctic wildlife: Report from six penguin colonies regularly visited by tourists

We investigated the potential role of Antarctic tourism in the introduction of human-associated pathogens into Antarctic wildlife. We collected and analyzed 233 fecal samples from eight bird species. The samples were collected at six localities on the Antarctic Peninsula, which often is visited by tourists. Every sample was investigated for pathogens of potential human origin: Campylobacter jejuni

Study of 2D and 3D Geometric Models Applied on SAR Images (A Case Study in BAM Area)

study several 2D and 3D math models have been tested in order to correct slant range SAR data geometrically. Some of these models consider the imaging geometry at the time of imaging while the others relate the ground space to the image one by mathematical polynomials. The images used here are 3 ENVISAT ones of Bam area. In order to extract the 3D GCPs, a topographic map with a scale of 1:25000 an

Methodological study of affine transformations of gene expression data with proposed robust non-parametric multi-dimensional normalization method

Background: Low-level processing and normalization of microarray data are most important steps in microarray analysis, which have profound impact on downstream analysis. Multiple methods have been suggested to date, but it is not clear which is the best. It is therefore important to further study the different normalization methods in detail and the nature of microarray data in general. Results: A

ERBB2 amplification is associated with tamoxifen resistance in steroid-receptor positive breast cancer

Amplification and overexpression of the ERBB2 (HER-2/neu) oncogene has been implicated as contributing to the development of human breast cancer, and as a predictor of poor survival. In the present non-randomized study of 871 primary invasive breast tumours, ERBB2 activation was significantly correlated to a shorter disease-free and overall survival in the subgroup of patients receiving adjuvant t

Dispersive liquid-liquid microextraction followed by high-performance liquid chromatography-diode array detection as an efficient and sensitive technique for determination of antioxidants

Dispersive liquid-liquid microextraction (DLLME) and high performance liquid chromatography-diode array detection (HPLC-DAD) was presented for extraction and determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as extraction and dispersive solvents, respectively. The main advantages

The objects of attention: Causes and targets

The objects of attention can be located anywhere along the causal link from the source of stimuli to the final output of the vision system. As causes, they attract and control attention, and as products, they constitute targets of analysis and explicit comments. Stimulus-driven indexing creates pointers that support fast and frugal cognition.

A new brain tumour therapy combining bleomycin with in vivo electropermeabilization

The potentials of in vivo electropermeabilization in combination with bleomycin in brain tumor treatment have been explored. In the brain of normal Fischer 344 rats, 2 electrodes were placed 5 mm apart. Electropermeabilization was performed with 8 to 12 exponential 400 V pulses with a time constant of 325 microseconds. Some animals were given bleomycin i.v., 1mg/kg b.w., 4 minutes before electric

Molecular mass distribution analysis of ethyl(hydroxyethyl)cellulose by size-exclusion chromatography with dual light-scattering and refractometric detection

Dual low-angle light scattering and refractometric detection coupled to size-exclusion chromatography provided proof for the presence of a low amount of stable aggregates/particles in ethyl(hydroxyethyl)cellulose. Unlike the correct size-exclusion chromatographic behavior of the parent polysaccharide itself, the aggregates exhibit variable size-dependent weak retention as a function of flow-rate a

The Mhc class II of the Black grouse (Tetrao tetrix) consists of low numbers of B and Y genes with variable diversity and expression

We found that the Black grouse (Tetrao tetrix) possess low numbers of Mhc class II B (BLB) and Y (YLB) genes with variable diversity and expression. We have therefore shown, for the first time, that another bird species (in this case, a wild lek-breeding galliform) shares several features of the simple Mhc of the domestic chicken (Gallus gallus). The Black grouse BLB genes showed the same level of

Anti-hepatitis C virus screening will reduce the incidence of post-transfusion hepatitis C also in low-risk areas

The incidence of post-transfusion hepatitis non-A, non-B (PTH-NANB) was prospectively assessed in two areas in the southeast region of Sweden. Patients undergoing hip arthroplasty were studied with blood sampling for alanine aminotransferase analysis before and at 2, 3, and 4 months after transfusion. Of the patients 97% and 82% were transfused and received a mean of 5.5 and 3.4 units in Linkoping

Approaches to increasing yield in evaporation/condensation nanoparticle generation

With the recent interest in the chemical, electronic and optical properties of nanometer scale metal particles, there is now interest in manufacturing these materials in larger quantities. Since both small particle size and high particle number concentrations are sought, there is a need for improved. particle generation reactors that can realize both goals. Here, results are presented for the synt

Snabbläsning - något för dyslektiker?

Kan man bli en bättre läsare med hjälp genom någon av alla de snabbläsningskurser och hjälpmedel för snabbläsning som florerar på marknaden? Och fungerar det i så fall även för personer med läs- och skrivsvårigheter? - I denna artikel redogör docent Kenneth Holmqvist för myter och fakta kring ögat, hjärnan och snabbläsning. Kenneth är verksam vid Institutionen för kognitionsforskning vid Lunds uni

Screening for cervixcancer kan vara kostnadseffektiv. Kombinationen cellprov och HPV-test skulle ge ytterligare vinster.

En hälsoekonomisk utvärdering av cellprovsscreening för cervixcancer har saknats vad gäller svenska förhållanden. I en modellstudie jämfördes effekter av och kostnader för gynekologisk cellprovskontroll med och utan tillägg av test för humant papillomvirus (HPV). Med cellprovsscreening i åldern 32–60 år vart tredje till vart femte år minskar risken att insjukna i invasiv cervixcancer med 88 procen

Ni 3d–BN "pi" hybridization at the h-BN/Ni(111) interface observed with core-level spectroscopies

The electronic structure of h-BN films grown on the Ni(111) surface has been studied as a function of film thickness using the synchrotron radiation based spectroscopic techniques: soft x-ray absorption, core-level photoemission and resonant Auger spectroscopy. A manifestation of the strong orbital hybridization between Ni 3d and h-BN pi states has been consistently observed in all spectra, implyi