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Implantation of the Femoral Stem into a Bed of Titanium Granules Using Vibration: A pilot study of a new method for prosthetic fixation in 5 patients followed for up to 15 years

This study describes a new method for the fixation of titanium hip stem prostheses based on interdigitation of irregularly shaped porous titanium granules onto bone tissue. The granules were distributed into the prepared femoral cavity using a vibrating tool, and the stem was vibrated and tapped into the bed of granules. In this pilot study, 5 patients were followed between 9 and 15 years. The cli

Measurement of total and unilateral renal blood flow by oblique-angle velocity-encoded 2D-cine magnetic resonance angiography.

Two independent measurements of total renal blood flow (RBF) were made in healthy human subjects (n = 14, mean age 30 yr) by CINE phase-contrast magnetic resonance angiography. RBF, measured by summing the flows measured in the right and left renal arteries, was 1152 ± 44 ml/min (mean ± SE). RBF, measured from the difference between supra- and infrarenal abdominal aorta flow, was 1109 ± 68 ml/min.

Exit biology: Battle for the nascent chain

Ban and coworkers at ETH are step-by-step widening the perspective of the actions on the ribosome (Bingel-Erienmeyer et al., 2008). The last one in the series is the localization of the binding site of peptide deformylase at the mouth of the polypeptide exit tunnel.

The impact of maternal smoking during pregnancy on delivery outcome

BACKGROUND: Maternal smoking during pregnancy is associated with pre-term birth, intrauterine growth retardation, a small head circumference, a low Apgar score at 5 min and stillbirths and neonatal deaths. This study was undertaken in order to investigate the impact of maternal smoking during pregnancy when all these outcomes were considered. METHODS: With the use of the Swedish Medical Birth Regi

Transverse-mass dependence of two-pion correlations in Au+Au collisions at root(NN)-N-S=130 GeV

Two-pion correlations in roots(NN) = 130 GeV Au+Au collisions at RHIC have been measured over a broad range of pair transverse momentum k(T) by the PHENIX experiment at RHIC. The k(T) dependent transverse radii are similar to results from heavy-ion collisions at roots(NN) = 4.1 , 4.9, and 17.3 GeV, whereas the longitudinal radius increases monotonically with beam energy. The ratio of the outwards

The political ecology of automobile recycling in Europe

This paper addresses the relationship between organizations and the natural environment from both theoretical and empirical perspectives. In doing so, it contributes in three ways. First, it satisfies the need for more political perspectives in enviromnent-related research. Second, by analyzing the end-of-life vehicle issue that the European automobile industry addressed in the 1990s, the paper sa

The meaning of acute confusional state from the perspective of elderly patients.

OBJECTIVES: The aim of this study was to illuminate lived experience of having been in an acute confusional state (ACS) as narrated by elderly patients in orthopaedic care. METHOD: Qualitative study with phenomenological hermeneutic method for analysing the data based on narrative interviews. Fifty patients (67-96 years of age) who developed ACS during hospitalisation and in all cases the ACS ceas

Retrovirally delivered Islet-1 increases recruitment of Ng2 expressing cells from the postnatal SVZ into the striatum.

Neural stem and progenitor cells hold the promise to be used in cell-based therapies to treat both acute and degenerative neurological diseases. To date, most research has been focused on the use of in vitro propagated stem cells used as a source of cells in cell replacement therapies. However, mobilization of endogenous neural stem cells to generate a specific differentiated cell type offers an a

Unique lowest common ancestors in dags are almost as easy as matrix multiplication

We consider the problem of determining for each pair of vertices of a directed acyclic graph (dag) on n vertices whether or not it has a unique lowest common ancestor, and if so, finding such an ancestor. We show that this problem can be solved in time O(n ω logn), where ω< 2.376 is the exponent of the fastest known algorithm for multiplication of two n×n matrices. We show also that the problem of

Human endothelin ETA receptor antisense oligodeoxynucleotides inhibit endothelin-1 evoked vasoconstriction

Antisense oligodeoxynucleotides to endothelin ETA receptor mRNA were used to characterize vascular smooth muscle receptors. The concentration-response curve showed a significant attenuation of endothelin-1-induced contraction in circular segments of the human superficial temporal artery. Endothelin ETB receptor antisense or mismatch oligodeoxynucleotides showed no alteration of the endothelin-1-in

Increased realism in eyewitness confidence judgements: The effect of dyadic collaboration

This study investigated to what extent, and under what circumstances, pair collaboration influences the realism in eyewitness confidence in event memory. The participants first saw a short film clip and then confidence rated their answers to questions on its content. A condition (the Individual-Pair condition) where individual effort preceded pair collaboration showed better calibration compared w

Impact of home mechanical ventilation on health-related quality of life in patients with chronic alveolar hypoventilation: a prospective study.

Background: Nocturnal ventilatory support by nasal positive pressure ventilation (NPPV) is an established treatment method in patients with chronic alveolar hypoventilation (CAH). The knowledge about its long-term effects on health-related quality of life (HRQL) is limited. Methods: In a prospective, longitudinal, single-strand study, patients with CAH caused by non-COPD conditions, consecutively

Ethnic background, labor market attachment and severe morbidity: Hospitalization among immigrants in Sweden 1990-2001

This article examines differences in health among immigrants in Sweden from 1990 to 2001. Controlling for demographic characteristics, most immigrant groups display higher rates of hospitalisation than native Swedes, but when socio-economic factors are introduced, only Nordic immigrants display rates that are significantly higher than for Swedish-born individuals. High rates of hospitalisation amo

Temperature dependence and screening models in quantum cascade structures

Different screening models in quantum cascade lasers are compared by calculating the contribution of intrasubband impurity scattering to the optical linewidth as a function of temperature. We find a strong impact of impurity scattering, which increases substantially with temperature. A simple isotropic bulk screening model works well if the screening length is of the order of or longer than the pe

Circumferential suction-assisted lipectomy for lymphoedema after surgery for breast cancer

Background: The incidence of arm lymphoedema after treatment for breast cancer ranges from 1 to 49 percent. Although most women can be treated by non-operative means with satisfying results, end-stage lymphoedema is often non-responsive to compression, where hypertrophy of adipose tissue limits the outcome value of compression or massage. Methods: This was a prospective study of 37 women with unil

What tangled web: barriers to rampant horizontal gene transfer

Dawkins in his The Selfish Gene(1) quite aptly applies the term "selfish" to parasitic repetitive DNA sequences endemic to eukaryotic genomes, especially vertebrates. Doolittle and Sapienza (2) as well as Orgel and Crick (3) enlivened this notion of selfish DNA with the identification of such repetitive sequences as remnants of mobile elements such as transposons. In addition, Orgel and Crick (3)

Metamorphism of Paleoproterozoic paragneisses in the Belarus-Podlyasie granulite belt: Prograde-retrograde evolution

Metasedimentary granulites from the central portion of the Belarus-Podlyasie granulite belt were studied with the purpose to reproduce the Paleoproterozoic tectono-thermal evolution in the western part of the East European craton. The regularities identified in the compositional variations in minerals (particularly, garnet), textural relations between minerals, and thermobarometric data point to t