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Nitric oxide (NO) - Production and regulation of insulin secretion in islets of freely fed and fasted mice

Production of nitric oxide through the action of nitric oxide synthase (NOS) has been detected in the islets of Langerhans. The inducible isoform of NOS (iNOS) is induced by cytokines and might contribute to the development of type-1 diabetes, while the constitutive isoform (cNOS) is thought to be implicated in the physiological regulation of insulin secretion. In the present study we have detecte

Non-oral Continuous Drug Delivery Techniques in Parkinson's Disease : For Whom, When, and How?

Continuous dopaminergic stimulation (CDS) has become one of the main concepts in present Parkinson's disease (PD) research. This is based on the assumption that CDS, or rather near CDS, is the normal striatal setting in a healthy individual. In PD, the degeneration of dopaminergic neurons leads to a reduced capacity to buffer dopamine, which could increase the vulnerability to a pulsatile administ

Non-oral dopaminergic therapies for Parkinson's disease : current treatments and the future

Dysfunction of the gastrointestinal tract has now been recognized to affect all stages of Parkinson's disease (PD). The consequences lead to problems with absorption of oral medication, erratic treatment response, as well as silent aspiration, which is one of the key risk factors in developing pneumonia. The issue is further complicated by other gut abnormalities, such as small intestinal bacteria

Factors promoting and inhibiting sustained impact of a mental health task-shifting program for HIV providers in Ethiopia.

Background.Task-shifting mental health into general medical care requires more than brief provider training. Generalists need long-term support to master new skills and changes to work context are required to sustain change in the face of competing priorities. We examined program and context factors promoting sustainability of a mental health task-shifting training for hospital-based HIV providers

Atmospheric CO2 sensing using Scheimpflug-lidar based on a 1.57-µm fiber source

A molecular laser-radar system, based on the Scheimpflug principle, has been constructed and demonstrated for remote sensing of atmospheric CO2 concentrations using Differential Absorption Lidar (DIAL) in the (30012←00001) absorption band. The laser source is a Continues Wave (CW) Distributed-FeedBack (DFB) diode laser seeding an Erbium-doped fiber amplifier, emitting narrowband (3 MHz) tunable ra

Measurement of the exclusive 3He(e, e′p) reaction below the quasielastic peak

The high-precision measurements of the 3He(e,e′) reaction are analyzed using the A1 Collaboration spectrometers at the Mainz microtron MAMI. These were performed in antiparallel kinematics at a central momentum transfer of 685 MeV/c and at energy transfers below the quasielastic peak. Distorted momentum distributions and cross sections were also extracted. It is found that full Faddeev-type calcul

Effect of temperature on the formation of highly oxygenated organic molecules (HOMs) from alpha-pinene ozonolysis

Highly oxygenated organic molecules (HOMs) are important contributors to secondary organic aerosol (SOA) and new-particle formation (NPF) in the boreal atmosphere. This newly discovered class of molecules is efficiently formed from atmospheric oxidation of biogenic volatile organic compounds (VOCs), such as monoterpenes, through a process called autoxidation. This process, in which peroxy-radical

Enhanced Radiative Recombination of Excitons and Free Charges Due to Local Deformations in the Band Structure of MAPbBr3 Perovskite Crystals

We have imaged the emissions from excitons and free charges in a methylammonium lead bromide perovskite (MAPbBr3) crystal. In a direct band gap semiconductor, dynamics of excited electrons and holes in hybrid lead-halide perovskites is rather complex because of the formation of excitons and the presence of traps and structural inhomogeneities. A recent report by Nah et al. (Nah, S.; Spokoyny, B.;

Comparing thermal performance curves across traits : how consistent are they?

Thermal performance curves (TPCs) are intended to approximate the relationship between temperature and fitness, and are commonly integrated into species distributional models for understanding climate change responses. However, TPCs may vary across traits because selection and environmental sensitivity (plasticity) differ across traits or because the timing and duration of the temperature exposure

Development of an innovative methodology for monitoring of in situ remediation of chlorinated solvents – the MIRACHL-project

BackgroundDense Non Aqueous Phase Liquids (DNAPL) such as chlorinated solvents are common pollutants stemming from different types of industries including dry cleaning facilities, and reports on cases showing serious risk to soil and ground water are frequent on a global scale. DNAPLs are especially problematic as they are denser than water and move down through the groundwater, not always followi