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Early Paleogene biosiliceous sedimentation in the Atlantic Ocean : Testing the inorganic origin hypothesis for Paleocene and Eocene chert and porcellanite

The widespread occurrence of lower Eocene chert and porcellanite has been viewed as a major paleoceanographic issue since the advent of ocean drilling, and both biotic and abiotic forcings have been proposed to explain it. We present a reconstruction of indurated siliceous sediment (ISS) and preserved biosiliceous sediment (PBS) occurrences in the Atlantic Ocean through the Paleocene and Eocene (~

Long-term kidney transplant outcomes in primary glomerulonephritis : Analysis from the ERA-EDTA registry

Background.We evaluated the 15-year kidney allograft survival in patients with primary glomerulonephritis and determined if the risk of graft loss varied with donor source within each glomerulonephritis group. Methods. Using data from the European Renal Association-European Dialysis and Transplant Association Registry, Kaplan-Meier, competing risk, and Cox regression analyses were performed on adu

Making two worlds meet

This chapter focuses on the personal experiences of collaborations based on academic–practitioner interactions, which are not always as straightforward as presented in commonplace transdisciplinary theory. By using autoethnographic methodology, this chapter provides some of the most important insights from past and ongoing work from a major sustainability project that uses the ‘Research Forum’ (RF

SLAM using LTE Multipath Component Delays

Cellular radio based localization can be an important complement or alternative to other localization technologies, as base stations continuously transmit signals of opportunity with beneficial positioning properties. In this paper, we use the long term evolution (LTE) cell-specific reference signal for this purpose. The multipath component delays are estimated by the ESPRIT algorithm, and the est

The effect of the Siberian tundra on the environment of the shelf seas and the Arctic Ocean

The Tundra Ecology -94 expedition investigated inflow of inorganic and organic carbon to the shelf seas by river runoff, and its transformation by biochemical processes in seawater and sediment. In addition, anthropogenic radionuclides, 137Cs, 90Sr, and 239,240Pu, were studied in water and sediments. The distribution of dissolved inorganic carbon indicates that the majority of the Ob and Yenisey d

Correlations between histopathologic white matter changes and proton MR relaxation times in dementia.

Our previous studies have shown that incomplete white matter infarctions are common in senile dementia of the Alzheimer type. To visualize and interpret these changes on magnetic resonance imaging (MRI), knowledge of MR relaxation times associated with this histopathology is important. The proton MR relaxation times T1 and T2 were determined in vitro for 3 groups of specimens. Fifty specimens of n

Lymphocytes eject interferogenic mitochondrial DNA webs in response to CpG and non-CpG oligodeoxynucleotides of class C

Circulating mitochondrial DNA (mtDNA) is receiving increasing attention as a danger-associated molecular pattern in conditions such as autoimmunity, cancer, and trauma. We report here that human lymphocytes [B cells, T cells, natural killer (NK) cells], monocytes, and neutrophils derived from healthy blood donors, as well as B cells from chronic lymphocytic leukemia patients, rapidly eject mtDNA a

The future of sustainability projects: Flights of fancy or a threnody to a lost age?

Just like a living organism, also the project has an anatomy, a life span and a purpose. A project has its given actors, given timeframe and phases, and a given goal. Towards the project’s completion, all these factors must intertwine perfectly, otherwise the project’s success will be challenged. Uncovering how these intricacies are held in place has been the epistemological foundation of this boo

Anatomy of a 21st-century project: A quick autopsy

We all are accustomed to projects. Projects are everywhere, and everything is basically a project. We have learnt how to deal with projects, for better or worse. Some of us love them, some of us are fed up with them. But projects are here to stay. Projects are far from a new invention, what has changed is the fine-tuning. It has changed to the point that projects of today are virtually unrecognisa

Investigating information seeking in ravens (Corvus corax)

Measuring the responses of non-human animals to situations of uncertainty is thought to shed light on an animal’s metacognitive processes; namely, whether they monitor their own knowledge states. For example, when presented with a foraging task, great apes and macaques selectively seek information about the location of a food item when they have not seen where it was hidden, compared to when they

On the Stability of Solitary Water Waves with a Point Vortex

This paper investigates the stability of traveling wave solutions to the free boundary Euler equations with a submerged point vortex. We prove that sufficiently small-amplitude waves with small enough vortex strength are conditionally orbitally stable. In the process of obtaining this result, we develop a quite general stability/instability theory for bound state solutions of a large class of infi

Effects of microwaves from GSM mobile phones on the blood-brain barrier and neurons in rat brain

Our group has since 1988 studied the effects of different intensities and modulations of 915MHz RF in a rat model where the exposure takes place in a TEM-cell during various time periods and post exposure recovery times. The power fed into TEM-cells was 0.125, 1.25, 12.5 or 125mW corresponding to whole body SAR (determined experimentally): 0.2, 2, 20 or 200mW/kg. The rats were awake and not restra

In vivo evaluation of femoral blood flow measured with magnetic resonance

Quantitative measurements of blood flow based on magnetic resonance imaging (MRI) using conventional multiple spin echo sequences were evalutated in vivo in healthy young volunteers. Blood flow was measured using MRI in the femoral vein. The initial slope of the multiple spin echo decay curve, corrected for the T2 decay of non-flowing blood was used to calculate the blood flow. As a reference, the

Regional differences in the proton magnetic resonance relaxation times T1 and T2 within the normal human brain

The proton magnetic resonance (MR) relaxation times T1 and T2 were determined in autopsy specimens from 13 different regions of normal human brains. One hundred and seventy-four tissue samples from 25 brains were examined in a pulsed MR analyzer of 0.25 T and were then also studied histologically. There were regional differences in T1 and T2 within the cerebral gray matter but not within the white

Evaluation of renal function parameters with simultaneously administered 99mTc-DTPA and 131I-hippuran

The present study aimed at comparing two renal function tests using 99mTc-DTPA (diethylene triamine penta acetic acid) and 131I-labeled hippuran (o-hippuric acid). A mixture of 80 Mbq 99mTc-DTPA and 7.4 MBq 131I-hippuran in a total volume of 1.5 ml or less was injected into an arm-vein. Both radiopharmaceuticals have identical intitial distributions in the blood pool when injected in this manner.