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Electrical stimulation of the hypothalamic and midbrain defense regions evoked convergent excitatory responses in neurons in nucleus paragigantocellularis lateralis (PGL) in rats anesthetized with urethane. Stimulation in PGL activated neurons in the periaqueductal gray matter (PAG) and in the hypothalamus antidromically. In the PAG the projecting neurons(More)
Extracellular recording experiments were done in urethane- and chloralose-anaesthetized, paralyzed and artificially ventilated rabbits. Thirty-one baroreceptor-sensitive neurones were identified in the region of the nucleus tractus solitarius (NTS) by their excitatory responses to stimulation of the ipsilateral aortic nerve. A conditioning stimulus(More)
A new microfluidic platform for focal stimulation of cells and tissue has been developed. The device consists of a 100 μm x 4 μm x 6 mm Parylene microchannel with a 5, 10, or 20 μm diameter pore. First results of real time focal chemical stimulation of cell cultures are presented. INTRODUCTION Focal delivery of chemicals at cellular and sub-cellular(More)
OBJECTIVE To examine factors potentially contributing to acutely exacerbated chronic tinnitus initiation using the Tinnitus Handicap Inventory. METHODS Sixty acutely exacerbated chronic tinnitus out-patients were divided into two groups depending on whether hearing loss was aggravated or stable during tinnitus exacerbation. Total Tinnitus Handicap(More)
OBJECTIVES Pedicle-lengthening osteotomy is a novel surgery for lumbar spinal stenosis (LSS), which achieves substantial enlargement of the spinal canal by expansion of the bilateral pedicle osteotomy sites. Few studies have evaluated the impact of this new surgery on spinal canal volume (SCV) and neural foramen dimension (NFD) in three different types of(More)
This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract This study is concerned with the challenges of parameterizing cloud condensation nu-clei (CCN) when changes in particle physicochemical properties occur, based on field(More)
An implantable, single-use miniature infusion pump (MIP) was designed to allow radiotracer injection and functional neuroimaging in freely moving mice. The pump comprises a pressurized reservoir, and a parylene electrothermal valve, which opens to inject tracer through an intravenous catheter into the circulation. A 3-layer 300 µl elastomeric reservoir was(More)
Among the seventy-eight extracellularly recorded neurones in the nucleus paragigantocellularis lateralis (PGL), 30 and 31 of them were excited by the stimulation of superficial (SPN) and deep (DPN) peroneal nerve, respectively. In the other 17 neurones, convergent inputs from both nerves to a single neurone were found, and a post-excitatory inhibition was(More)