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The propagation of elastic waves in a many-layered elastic half-space is considered. One of the layers contains a bounded inhomogeneity which in the numerical applications is taken as a sphere. The half-space is excited by an explosion, modelled as a sudden isotropic point source. First the time-harmonic problem is solved using the null field approach (the T-matrix method). Starting from surface
Case volume per 100 000 population and perioperative mortality rate (POMR) are key indicators to monitor and strengthen surgical services. However, comparisons of POMR have been restricted by absence of standardised approaches to when it is measured, the ideal denominator, need for risk adjustment, and whether data are available. We aimed to address these issues and recommend a minimum dataset by
Fifteen primary liver carcinomas (PLCs), including 12 hepatocellular carcinomas and three cholangiocellular carcinomas, were investigated cytogenetically after short-term culture. Ten tumors displayed clonal chromosomal abnormalities, whereas only normal karyotypes were detected in four cases, and one sample failed to grow in vitro. Structural rearrangements most often involved chromosomes 1, 7, a
Hematopoietic stem cells (HSCs) constitute a rare population of tissue-specific cells that can self-renew and differentiate into all lineages of the blood cell system. These properties are critical for tissue regeneration and clinical applications of HSCs. Cord blood is an easily accessible source of HSCs. However, the number of HSCs from one unit is too low to effectively transplant most adult pa
BACKGROUND: The aim of this study was to evaluate the efficiency of captopril renography to detect renovascular hypertension (RVH) using the standardized test criteria established at the consensus conference in Santa Fe 1995. The evaluation was made prospectively and in a clinical situation. METHODS: Renal scintigraphy was performed with Tc-MAG3 according to a 2-day protocol in patients receiving
We demonstrate that two harmonic sources generated independently in a xenon gas jet using the same picosecond Nd:YAG laser are locked in phase. The experiment is performed by separating a laser beam into two parallel beams focused at different locations under the nozzle of a gas jet, and therefore producing two independent sources of harmonic radiation, and studying the pattern obtained in the far
Bone marrow transplantation has been shown to normalize hyperglycemia but the mechanisms underlying pancreatic β-cell regeneration remain elusive. Here, we investigate the capacity of transplanted bone marrow cells to engraft into the pancreas, to adopt an endothelial cell phenotype and to stimulate β-cell regeneration after islet damage. Genetically marked whole bone marrow from Tie2-Cre/ZEG mice
How can we create conditions for higher education which develop a student’s ability to acquire meaningful knowledge and take actions that carry the stamp of reality? How can we create conditions where the students develop the capacity to do their very best, even in a changing, complicated and unforeseen situation? This article emphasises the role of intuition in the learning process where rational
The prevailing view that eukaryotic cells are restrained from intercellular exchange of genetic information has been challenged by recent reports on nanotubes, exosomes, apoptotic bodies, and nucleic acid-binding peptides that provide novel pathways for cell-cell communication, with implications in health and disease.
The kallikrein, prostate-specific antigen (PSA), is one of the world's most frequently used disease biomarkers. After almost two decades of research and clinical experience, the diagnostic and monitoring limitations of PSA are beginning to be understood. Most physicians are aware of PSA's low specificity for cancer among older men with benign prostatic conditions; fewer are aware of recent data, w
BACKGROUND: In children, a gastrostomy button was placed as the initial feeding tube, using laparoscopy and a modified surgical technique. The aim of this study was to test the hypothesis that a new surgical procedure developed at our institution would result in fewer postoperative complications. PATIENTS AND METHODS: Sixty-two consecutive children with nutritional problems underwent a video-assis
Background: The use of drugs for migraine during pregnancy may have adverse effects on delivery outcome, and warnings exist for such drugs regarding use during pregnancy. Most information in the literature concerns triptans. Objective: The aim of the study was to describe the delivery outcome when a woman had used drugs for migraine during pregnancy. Study Design: A register study where exposure f
Spatially distributed air temperature data with high temporal resolution are desired for several modeling applications. By exploiting the thermal split window channels in combination with the red and near infrared channels of the geostationary MSG SEVIRI sensor, multiple daily air temperature estimates can be achieved using the contextual temperature-vegetation index method. Air temperature was es
We will in the present paper derive a general three-dimensional formalism for electromagnetic scattering from buried inhomogeneities. We will exploit the transition matrix formalism, originally given by Waterman, to electromagnetic scattering in the presence of an infinite surface and a buried bounded inhomogeneity. The analysis explicitly assumes that the sources are located above the ground, but
OBJECTIVES: In previous trials, patients with type 2 diabetes using calcium channel blockers (CCB) have suffered a less favourable outcome when compared with patients on other treatments. The present study was designed to compare mortality in type 2 diabetes patients using either CCB or beta blockers (BB) as antihypertensive agents. DESIGN: Retrospective observational study. Patients were followed
Microglia are the immune cells of the central nervous system (CNS). They patrol the brain environment with their ramifications and they respond quickly in the presence of pathogens and brain damages. Others and we have recently reported the existence of two different types of microglia, the resident and the newly differentiated microglia that are derived from the bone marrow stem cells. Of great i
The muscles of the pharynx are controlled by networks of neurons under the control of specific regions in the brain stem, which have been fairly well studied. However, the transmission between these neurons and the pharyngeal muscles, at the motor end plates, is less well understood. Therefore, an in vitro model for the study of neuromuscular transmission in the pharyngeal muscle of the mouse was
PURPOSE: To investigate how life situation by persons with advanced colorectal cancer and their partners is affected by living with the disease and its treatment. METHOD: Separate, individual interviews were made with persons with advanced colorectal cancer (n = 12) and their partners (n = 9) about how their daily lives were affected by the disease and its treatment. The verbatim transcripts were
