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Cancer cell ability to mechanically adjust to extracellular matrix stiffness correlates with their invasive potential

Increased tissue stiffness is a classic characteristic of solid tumors. One of the major contributing factors is increased density of collagen fibers in the extracellular matrix (ECM). Here, we investigate how cancer cells biomechanically interact with and respond to the stiffness of the ECM. Probing the adaptability of cancer cells to altered ECM stiffness using optical tweezers based micro-rheol

Migration, Transnationalism, and Social Change in Central Asia: Everyday Transnational Lives of Uzbek Migrants in Russia

There is an extensive research that explores the reproduction of transnational communities and relations, with a particular focus on locality, identity and culture. However, the existing literature on transnational migration is largely based on the case studies of immigrant communities living in the United States and Western Europe, while not much has been said about the transnational practices of

Generation and evaluation of physically inspired synthetic mammograms

A software breast phantom, based upon a breast tissue model derived from physical properties of breast anatomy, has been developed for mammography simulation. Synthetic mammograms, obtained by applying a breast compression model and an x-ray acquisition model to the software breast phantom, were compared by quantitative and qualitative means with real mammograms at different scales. Good agreement

Animal navigation : a noisy magnetic sense?

Diverse organisms use Earth's magnetic field as a cue in orientation and navigation. Nevertheless, eliciting magnetic orientation responses reliably, either in laboratory or natural settings, is often difficult. Many species appear to preferentially exploit non-magnetic cues if they are available, suggesting that the magnetic sense often serves as a redundant or 'backup' source of information. Thi

AI in the EU: Ethical Guidelines as a Governance Tool

This chapter examines ethical guidelines as a tool for the governance of artificial intelligence (AI). Analysing the European development towards a trustworthy AI, with a focus on the High-Level Expert Group on AI appointed by the European Commission, the chapter highlights the interaction between guidelines and law in light of technological advancements. It discusses why contemporary AI has led t

Spectroscopic pre-main-sequence binaries. II. Haro 1-14c and Parenago 2494

In the course of a long-term radial velocity survey of about 100 southern pre-main-sequence (PMS) stars, we have discovered two spectroscopic PMS binaries. One is the weak-lined T Tauri star Haro 1-14c in the Ophiuchus clouds, which has a spectral type of K3 and is a member of the visual Haro 1-14 binary with a separation of 12."9. Haro 1-14c is a single-lined spectroscopic binary with a very long

Calculation of geomagnetically induced currents in the 400 kV power grid in southern Sweden

Sweden has experienced many geomagnetically induced current (GIC) events in the past, which is obviously due to the high-latitude location of the country. The largest GIC, almost 300 A, was measured in southern Sweden in the earthing lead of a 400 kV transformer neutral during the magnetic storm on 6 April 2000. On 30 October 2003, the city of Malmo at the southern coast suffered from a power blac

Healthcare consumption in men and women aged 65 and above in the two years preceding decision about long-term municipal care

The aim was to investigate healthcare consumption in men and women aged 65 and above in the two years preceding decision about long-term municipal care at home or in special accommodation and to investigate determinants for healthcare consumption. The study comprised 362 people (aged 65 or over), all subject to a decision about municipal care and/or services during 2002-2003, drawn from the Swedis

The freshwater cyanobacterium Lyngbya aerugineo-coerulea produces compounds toxic to mice and to mammalian and fish cells

Despite a growing awareness of the presence of cyanobacterial toxins, knowledge about the ability of specific species to produce toxic compounds is still rather limited. It was the overall goal of the current work to investigate if probes derived from the freshwater species Lyngbya aerugineo-coerulea (Kutz.) Gomont, a cyanobacterium frequently found in southern Europe and not previously investigat

Gram-negative bacteria induce proinflammatory cytokine production by monocytes in the absence of lipopolysaccharide (LPS)

Tumour necrosis factor-alpha (TNF-alpha), IL-1alpha and IL-6 production by human monocytes in response to a clinical strain of the Gram-negative encapsulated bacteria Neisseria meningitidis and an isogenic lpxA- strain deficient in LPS was investigated. Wild-type N. meningitidis at concentrations between 105 and 108 organisms/ml and purified LPS induced proinflammatory cytokine production. High le

Divergence of Hoxc8 early enhancer parallels diverged axial morphologies between mammals and fishes

There is considerable interest in understanding how cis-regulatory modifications drive morphological changes across species. Because developmental regulatory genes, including Hox genes, are remarkably conserved, their noncoding regulatory regions are likely sources for variations. Modifications of Hox cis-regulatory elements have potential to alter Hox gene expression and, hence, axial morphologie

Sensitivity of HIV-1 primary isolates to human anti-CD40 antibody-mediated suppression is related to co-receptor use

The effect of CD40 ligation on infection by HIV-1 primary isolates with different R5 phenotypes was evaluated with a novel set of anti-CD40 monoclonal antibodies originating from a human phage display library. Five human monoclonal anti-CD40 antibodies of IgG1 subtype characterized by the ability to activate B cells via CD40 were tested for induction of the CC-chemokines RANTES and MIP-1alpha and

Transcription factor profiling in individual hematopoietic progenitors by digital RT-PCR

We report here a systematic, quantitative population analysis of transcription factor expression within developmental progenitors, made possible by a microfluidic chip-based "digital RT-PCR" assay that can count template molecules in cDNA samples prepared from single cells. In a survey encompassing five classes of early hematopoietic precursor, we found markedly heterogeneous expression of the tra

Elderly women's experiences of living with fall risk in a fragile body: a reflective lifeworld approach

The purpose of this qualitative study was to explore the lived experience of fall risk from a lifeworld perspective in elderly women with previous fragility fractures. Thirteen elderly women with a high risk of fall and fracture, aged 76-86, living in their own homes in rural areas, were recruited from a voluntary fracture prevention programme. All women had a history of fragility fractures and we