71 research outputs found
A multicentre phase II study of cisplatin and gemcitabine for malignant mesothelioma
Our previous phase II study of cisplatin and gemcitabine in malignant mesothelioma showed a 47.6% (95% CI 26.2–69.0%) response rate with symptom improvement in responding patients. Here we confirm these findings in a multicentre setting, and assess the effect of this treatment on quality of life and pulmonary function. Fifty-three patients with pleural malignant mesothelioma received cisplatin 100 mg m−2 i.v. day 1 and gemcitabine 1000 mg m−2 i.v. days 1, 8, and 15 of a 28 day cycle for a maximum of six cycles. Quality of life and pulmonary function were assessed at each cycle. The best response achieved in 52 assessable patients was: partial response, 17 (33%, 95% CI 20–46%); stable disease, 31 (60%); and progressive disease, four (8%). The median time to disease progression was 6.4 months, median survival from start of treatment 11.2 months, and median survival from diagnosis 17.3 months. Vital capacity and global quality of life remained stable in all patients and improved significantly in responding patients. Major toxicities were haematological, limiting the mean relative dose intensity of gemcitabine to 75%. This schedule of cisplatin and gemcitabine is active in malignant mesothelioma in a multicentre setting. Investigation of alternative scheduling is needed to decrease haematological toxicity and increase the relative dose intensity of gemcitabine whilst maintaining response rate and quality of life
On the Perception of Newcomers: Toward an Evolved Psychology of Intergenerational Coalitions
Human coalitions frequently persist through multiple, overlapping membership generations, requiring new members to cooperate and coordinate with veteran members. Does the mind contain psychological adaptations for interacting within these intergenerational coalitions? In this paper, we examine whether the mind spontaneously treats newcomers as a motivationally privileged category. Newcomers—though capable of benefiting coalitions—may also impose considerable costs (e.g., they may free ride on other members, they may be poor at completing group tasks). In three experiments we show (1) that the mind categorizes coalition members by tenure, including newcomers; (2) that tenure categorization persists in the presence of orthogonal and salient social dimensions; and (3) that newcomers elicit a pattern of impressions consistent with their probable ancestral costs. These results provide preliminary evidence for a specialized component of human coalitional psychology: an evolved concept of newcomer
Endothelial dysfunction and diabetes: roles of hyperglycemia, impaired insulin signaling and obesity
Bacterial Communities Involved in Soil Formation and PlantEstablishment Triggered by Pyrite Bioweathering on ArcticMoraines
Abstract In arctic glacier moraines, bioweathering primed
by microbial iron oxidizers creates fertility gradients that
accelerate soil development and plant establishment. With
the aim of investigating the change of bacterial diversity in
a pyrite-weathered gradient, we analyzed the composition
of the bacterial communities involved in the process by
sequencing 16S rRNA gene libraries from different biological
soil crusts (BSC). Bacterial communities in three BSC
of different morphology, located within 1 m distance
downstream a pyritic conglomerate rock, were significantly
diverse. The glacier moraine surrounding the weathered site
showed wide phylogenetic diversity and high evenness with
15 represented bacterial classes, dominated by Alphaproteobacteria
and pioneer Cyanobacteria colonizers. The bioweathered
area showed the lowest diversity indexes and only nine
bacterial families, largely dominated by Acidobacteriaceae
and Acetobacteraceae typical of acidic environments, in
accordance with the low pH of the BSC. In the weathered
BSC, iron-oxidizing bacteria were cultivated, with counts
decreasing along with the increase of distance from the rock,
and nutrient release from the rock was revealed by
environmental scanning electron microscopy-energy dispersive
X-ray analyses. The vegetated area showed the presence
of Actinomycetales, Verrucomicrobiales, Gemmatimonadales,
Burkholderiales, and Rhizobiales, denoting a bacterial
community typical of developed soils and indicating that the
lithoid substrate of the bare moraine was here subjected to an
accelerated colonization, driven by iron-oxidizing activity
Short-Lived Trace Gases in the Surface Ocean and the Atmosphere
The two-way exchange of trace gases between the ocean and the atmosphere is important for both the chemistry and physics of the atmosphere and the biogeochemistry of the oceans, including the global cycling of elements. Here we review these exchanges and their importance for a range of gases whose lifetimes are generally short compared to the main greenhouse gases and which are, in most cases, more reactive than them. Gases considered include sulphur and related compounds, organohalogens, non-methane hydrocarbons, ozone, ammonia and related compounds, hydrogen and carbon monoxide. Finally, we stress the interactivity of the system, the importance of process understanding for modeling, the need for more extensive field measurements and their better seasonal coverage, the importance of inter-calibration exercises and finally the need to show the importance of air-sea exchanges for global cycling and how the field fits into the broader context of Earth System Science
Evidence-based Kernels: Fundamental Units of Behavioral Influence
This paper describes evidence-based kernels, fundamental units of behavioral influence that appear to underlie effective prevention and treatment for children, adults, and families. A kernel is a behavior–influence procedure shown through experimental analysis to affect a specific behavior and that is indivisible in the sense that removing any of its components would render it inert. Existing evidence shows that a variety of kernels can influence behavior in context, and some evidence suggests that frequent use or sufficient use of some kernels may produce longer lasting behavioral shifts. The analysis of kernels could contribute to an empirically based theory of behavioral influence, augment existing prevention or treatment efforts, facilitate the dissemination of effective prevention and treatment practices, clarify the active ingredients in existing interventions, and contribute to efficiently developing interventions that are more effective. Kernels involve one or more of the following mechanisms of behavior influence: reinforcement, altering antecedents, changing verbal relational responding, or changing physiological states directly. The paper describes 52 of these kernels, and details practical, theoretical, and research implications, including calling for a national database of kernels that influence human behavior
Real-world data reveal a diagnostic gap in non-alcoholic fatty liver disease
FP7 Ideas under European Research Council (ERC) award 11537
Capillary nano-immunoassays: advancing quantitative proteomics analysis, biomarker assessment, and molecular diagnostics
A core outcome set for pre‐eclampsia research: an international consensus development study
Objective
To develop a core outcome set for pre‐eclampsia.
Design
Consensus development study.
Setting
International.
Population
Two hundred and eight‐one healthcare professionals, 41 researchers and 110 patients, representing 56 countries, participated.
Methods
Modified Delphi method and Modified Nominal Group Technique.
Results
A long‐list of 116 potential core outcomes was developed by combining the outcomes reported in 79 pre‐eclampsia trials with those derived from thematic analysis of 30 in‐depth interviews of women with lived experience of pre‐eclampsia. Forty‐seven consensus outcomes were identified from the Delphi process following which 14 maternal and eight offspring core outcomes were agreed at the consensus development meeting. Maternal core outcomes: death, eclampsia, stroke, cortical blindness, retinal detachment, pulmonary oedema, acute kidney injury, liver haematoma or rupture, abruption, postpartum haemorrhage, raised liver enzymes, low platelets, admission to intensive care required, and intubation and ventilation. Offspring core outcomes: stillbirth, gestational age at delivery, birthweight, small‐for‐gestational‐age, neonatal mortality, seizures, admission to neonatal unit required and respiratory support.
Conclusions
The core outcome set for pre‐eclampsia should underpin future randomised trials and systematic reviews. Such implementation should ensure that future research holds the necessary reach and relevance to inform clinical practice, enhance women's care and improve the outcomes of pregnant women and their babies
International perspectives on backwards vertical integration
International audienceThis chapter provides a broad understanding of the motivations and debates related to vertical integration backwards, through concrete examples or practical cases. Vertical integration backwards in the wine industry was extensively discussed in the literature (see, e.g. Sidlovits and Kator 2007). However, those contributions focus on one region or country or a particular type of firm (e.g. wine co-operatives). Without pretending to cover all the dimensions of vertical integration, we introduce hereafter, through several examples, the causes or consequences that lead firms to practice vertical integration
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