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Measuring heart rate variability in horses to investigate the autonomic nervous system activity - Pros and cons of different methods

Power spectrum analysis of heart rate variability (HRV) may provide insight into the mental state of the animal held in restricted specific experimental conditions. Determining inter-beat-interval (IBI) variations is one way to measure changes in autonomic nervous system (ANS) activity in horses. An imbalance between the sympathetic and parasympathetic nervous system can indicate pain or stress, f

A novel method for direct measurement of complement convertases activity in human serum.

Complement convertases are enzymatic complexes that play a central role in sustaining and amplification of the complement cascade. Impairment of complement function directly or indirectly leads to pathologic conditions including higher infection rate, kidney diseases, autoimmune- or neurodegenerative diseases and ischemia-reperfusion injury. An assay for direct measurement of activity of the conve

Cyclodextrins in DNA decompaction.

Individual T4DNA molecules, previously compacted by using a cationic surfactant (cetyltrimethylammonium bromide, CTAB), were successfully decompacted by the addition of an appropriate concentration of either alpha-cyclodextrin or beta-cyclodextrin (alpha-CD and beta-CD, respectively) due to the formation of inclusion complexes with the surfactant. The process was shown to be a non first-order tran

Coveted, detested and unattainable? Images of the US superpower role and self-images of Russia in Russian print media discourse

This article explores how the image of the USA has developed in two major Russian daily newspapers, Izvestiya and Komsomolskaya Pravda, in a time period comprised of a total 20 weeks’ of study in the years of 1984, 1994, 2004 and 2009. For Russia this time span was dramatic: it moved from seemingly stable superpower in the 1980s, over the chaos after the dissolution of the Soviet Union in the 1990

Direct summation of dipole-dipole interactions using the Wolf formalism

We present an expanded Wolf formalism for direct summation of long-range dipole-dipole interactions and rule-of-thumbs how to choose optimal spherical cutoff (R-c) and damping parameter (alpha). This is done by comparing liquid radial distribution functions, dipole-dipole orientation correlations, particle energies, and dielectric constants, with Ewald sums and the Reaction field method. The resul

Localization of CGRP receptor components and receptor binding sites in rhesus monkey brainstem: A detailed study using in situ hybridization, immunofluorescence and autoradiography.

Functional imaging studies have revealed that certain brainstem areas are activated during migraine attacks. The neuropeptide calcitonin gene-related peptide (CGRP) is associated with activation of the trigeminovascular system, transmission of nociceptive information and plays a key role in migraine pathophysiology. Therefore, to elucidate the role of CGRP it is critical to identify the regions wi

Successful Treatment of Metachromatic Leukodystrophy Using Bone Marrow Transplantation of HoxB4 Overexpressing Cells

To evaluate the contribution of bone marrow (BM) cells to treat neurological disorders, we examined the effectiveness of BM cells expressing the homeobox B4 (HoxB4) gene to cure mice with metachromatic leukodystrophy (MLD) through transplantation. Increased number of donor cells was observed in brains of the MLD mice transplanted with HoxB4-transduced BM cells (B4MLD) in contrast to those transpla

Measuring institutional quality in ancient Athens

We use the Economic Freedom Index to characterize the institutions of the Athenian city-state in the fourth century BCE. It has been shown that ancient Greece witnessed improved living conditions for an extended period of time. Athens in the fourth century appears to have fared particularly well. We find that economic freedom in ancient Athens is on level with the highest ranked modern economies s

Computational fluid dynamics for thermal performance of a water-cooled minichannel heat sink with different chip arrangements

Purpose - With the development of electronic devices, including the desires of integration, miniaturization, high performance and the output power, cooling requirement of chips have been increased gradually. Water-cooled minichannel is an effective cooling technology for cooling of heat sinks. The minichannel flow geometry offers large surface area for heat transfer and a high convective heat tran

Plasma proteome profiling reveals biomarker patterns associated with prognosis and therapy selection in glioblastoma multiforme patients

Purpose: Glioblastoma multiforme (GBM) is a frequent and aggressive type of primary brain tumor with a heterogeneous origin. GBM is highly therapy resistant and carries a dismal prognosis for the patient. The purpose of this discovery study was to define candidate plasma biomarker signatures for improved classification and novel means for selecting patients for refined individualized therapy. Expe

Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes

Modeling soil thermal dynamics at high latitudes and altitudes requires representations of physical processes such as snow insulation, soil freezing and thawing and subsurface conditions like soil water/ice content and soil texture. We have compared six different land models: JSBACH, ORCHIDEE, JULES, COUP, HYBRID8 and LPJ-GUESS, at four different sites with distinct cold region landscape types, to

A pooled analysis of the effect of endovascular cooling on infarct size in patients with ST-elevation myocardial infarction.

Aims: Prior evaluations of endovascular cooling during primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI) have suggested variability in treatment effect related to core temperature at the time of reperfusion, to infarct location and time from symptom onset to reperfusion. Recent results from a randomised feasibility study suggest rapid induction of hypothermia i

Assessment of high and low enterotoxin A producing Staphylococcus aureus strains on pork sausage.

Three Staphylococcus aureus strains representing different alleles of the Siphoviridae prophage-encoded enterotoxin A (SEA) gene, including two high-SEA-producing strains and one low-SEA-producing strain were studied to investigate sea expression and SEA formation on a frankfurter type of sausage. The effect of lactic acid, an antimicrobial compound used as a preservative in food, was also investi

Serglycin inhibits the classical and lectin pathways of complement via its glycosaminoglycan chains: Implications for multiple myeloma

Serglycin (SG) is a proteoglycan expressed by hematopoietic cells and is constitutively secreted by multiple myeloma (MM) cells. SG participates in the regulation of various inflammatory events. We found that SG secreted by human MM cell lines inhibits both the classical and lectin pathways of complement, without influencing alternative pathway activity. The inhibitory effect of SG is due to direc

Postpubertal Examination after Hypospadias Repair Is Necessary to Evaluate the Success of the Primary Reconstruction.

Introduction Hypospadias is one of the most common congenital anomalies. There are many studies describing successful initial repair, but there are few studies examining long-term result. The aims of this study were to evaluate our patients that have been reconstructed for hypospadias and undergone final clinical examination after puberty and to assess how long clinical follow-up time is warranted

Visual modelling suggests a weak relationship between the evolution of ultraviolet vision and plumage coloration in birds.

Birds have sophisticated colour vision mediated by four cone types that cover a wide visual spectrum including ultraviolet (UV) wavelengths. Many birds have modest UV sensitivity provided by violet-sensitive (VS) cones with sensitivity maxima between 400 and 425 nm. However, some birds have evolved higher UV sensitivity and a larger visual spectrum given by UV-sensitive (UVS) cones maximally sensi

Robust Estimation of Diffusion-Optimized Ensembles for Enhanced Sampling

The multicanonical, or flat-histogram, method is a common technique to improve the sampling efficiency of molecular simulations. The idea is that free-energy barriers in a simulation can be removed by simulating from a distribution where all values of a reaction coordinate are equally likely, and subsequently reweight the obtained statistics to recover the Boltzmann distribution at the temperature

Long-term warming of a subarctic heath decreases soil bacterial community growth but has no effects on its temperature adaptation

We tested whether bacterial communities of subarctic heath soil are adapted to elevated temperature after experimental warming by open-top greenhouses for 7 or 17 years. The long-term warming by 1-2 degrees C significantly decreased bacterial community growth, by 28% and 73% after 7 and 17 years, respectively. The decrease was most likely due to decreased availability of labile substrate under war