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An integrated palaeoenvironmental investigation of a 6200 year old peat sequence from Ile de la Possession, Iles Crozet, sub-Antarctica

A 6200 year old peat sequence, cored in a volcanic crater on the sub-Antarctic Ile de la Possession (Iles Crozet), has been investigated, based on a multi-proxy approach. The methods applied are macrobotanical (mosses, seeds and fruits) and diatom analyses, complemented by geochemical (Rock-Eval6) and rock magnetic measurements. The chronology of the core is based on 5 radiocarbon dates. When comb

A reevaluation of the validity of unrestrained plethysmography in mice

Presently, unrestrained plethysmography is widely used to assess bronchial responsiveness in mice. An empirical quantity known as enhanced pause is derived from the plethysmographic box pressure [P-b( t), where t is time] and assumed to be an index of bronchoconstriction. We show that P-b(t) is determined largely by gas conditioning when normal mice breathe spontaneously inside a closed chamber in

Initiation of the decorin glycosaminoglycan chain in the endoplasmic reticulum-Golgi intermediate compartment

We have transiently expressed decorin with a C- terminal KDEL endoplasmic reticulum retention signal peptide in COS- 7 cells to study initiation of galactosaminoglycan synthesis in the endoplasmic reticulum- Golgi intermediate compartment. All decorin- KDEL molecules were substituted with N- linked oligosaccharides sensitive to endoglycosidase H, indicating that the core protein was located proxim

Social capital and administrative contextual determinants of lack of access to a regular doctor: A multilevel analysis in southern Sweden.

Background The aim of this study was to investigate the influence of contextual (social capital and administrative/neo-materialist) and individual factors on lack of access to a regular doctor. Methods The 2000 public health survey in Scania is a cross-sectional study. A total of 13,715 persons answered a postal questionnaire, which is 59% of the random sample. A multilevel logistic regression

No evidence of an MHC-based female mating preference in great reed warblers

Female mate-choice based on genetic compatibility is an area of growing interest. The major histocompatibility complex (MHC) genes are likely candidates for such mate-choice since these highly polymorphic genes may both increase offspring viability and also provide direct cues for mate-choice. In great reed warblers, females actively choose a breeding partner out of a handful of males that they vi

Modification of Charge Transfer and Energy Level Alignment at Organic/TiO2 Interfaces

Adsorption of titanyl phthalocyanine (TiOPc) on rutile TiO2(110) modified by a set of pyridine derivatives (2,2'-bipyridine, 4,4'-bipyridine, and 4-tert-butyl pyridine) has been investigated using synchrotron radiation based X-ray photoelectron spectroscopy (XPS). For the unmodified TiOPc/TiO2 system, a strong charge transfer is observed from the first layer TiOPc into the substrate, which leads t

Visual function in young adults following intrauterine growth retardation

Background: Intrauterine growth retardation (IUGR) resulting in infants born small for gestational age is a known risk factor for neurologic deficits and may predispose to poor cognitive development later in life. We recently found an association between IUGR and a reduced neuroretinal rim area at 18 years of age. We evaluated the possible association between IUGR and visual function. Subjects and

A matter of heart: the general practitioner consultation in an evidence-based world

This article is based on a keynote presentation at the 12th Nordic Congress in General Practice in Trondheim, Norway in September 2002. The aim was to demonstrate the strengths and limitations of evidence-based medicine (EBM) in a primary healthcare setting. The presentation comprised two separate lectures discussing an authentic case history from everyday practice that had been presented to the a

Bilateral symmetric organization of neural elements in the visual system of a coelenterate, Tripedalia cystophora (Cubozoa)

Cubozoans differ from other cnidarians by their body architecture and nervous system structure. In the medusa stage they possess the most advanced visual system within the phylum, located in sophisticated sensory structures, rhopalia. The rhopalium is a club-shaped structure with paired pit-shaped pigment cup eyes, paired slit-shaped pigment cup eyes, and two complex camera-type eyes: one small up

Interactive training for the management of breast cancer in general practice in Europe

Background. General practitioners need to play a more active role in the management of patients with breast cancer, specifically in screening programs, counseling, follow-up, palliative care, and psychosocial support. Special training is needed to meet these demands, Methods. An interactive training program resident on CD-ROM was developed. It includes nine cases designed according to the case met

Use of the 24-lead "standard" electrocardiogram to identify the site of acute coronary occlusion

This review presents the added value for diagnosis of acute ischemia/infarction of considering ST elevation in the 12 inverted leads (-I, -II, -II, -aVR, etc) of the standard electrocardiogram in addition to ST elevation in 12 positive leads. A small number of studies have been published showing substantial increases in sensitivity at the "cost of' slight decreases in specificity. One recent study

The diagnosis of bacterial vaginosis and vaginal flora changes

In a population of 956 women, attending for contraceptive advice, 131 (13.7%) were found to have BV acording to Amsel's criteria. Clue cells were detected in 200 (20.9%) women, a positive amine ('sniff') test in 191 (20.0%), a vaginal pH > or = 4.7 in 243 (25.4%) and a "characteristic" vaginal discharge in 104 (10.9%) women. Sensitivity, specificity, positive and negative predictive values in rela

Social capital, the miniaturisation of community and self-reported global and psychological health.

Social capital is often operationalised as social participation in the activities of the formal and informal networks of civil society and/or as generalised trust. Social participation and trust are two aspects of social capital that mutually affect each other, according to the literature. In recent years there has been an increased attention to the fact that generalised trust decreases for every

Virtual pedagogical agents: Naturalism vs. stylization

In discussions on naturalism vs. stylization in the design of virtual pedagogical agents (VPAs), the smooth communication argument is one of the most central in favour of visual naturalism. Yet, this argument dissolves if we separate design into the levels of: (l) linguistic performance, where the support for naturalism is strong; (2) dynamic visual appearance, in the sense of bodily behaviour, wi