Month: May 2014

Synaptic Vesicle Recycling: Steps and Principles

Synaptic vesicle recycling is one of the best‐studied cellular pathways. Many of the proteins involved are known, and their interactions are becoming increasingly clear. However, as for many other pathways, it is still difficult to understand synaptic vesicle recycling as a whole. While it is generally possible to point out how synaptic reactions take place, …

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Hunting Down the Hay Bacillus – Educational Microscopes in Biology Teaching

And that is one of the aims of this hands-on biology lesson. “We want to show the children how scientists work and how they get their results. Microscopy work is part of the process, and an extremely important haptic experience,” the biology teacher Hélène Theobald explains. One of the reasons why microscopy is so much …

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Bird Park Gives Fascinating Insights into the Variety of Nature

Worm eggs come in various shapes and sizes – round or oval. Beside bird feces, the team also examine samples from mammals. “We refer to comparison images to identify the worms infesting the animals. Coccidia for instance are relatively often found in animal excrements and may cause diarrhea. Here we have to keep an exact …

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2014 BRAVIA® – TV design concept / Stories / Sony Design / Sony

Redefining the value of TVs Monolithic Design and Sense of Quartz have led to a new BRAVIA® design theme: Pure Geometry.This approach has helped redefine the value a TV brings to a room and inspire new design. Concept 〈 2014 BRAVIA 〉 Shapes distilled to geometric purity An amazing BRAVIA viewing experience—this goal originally inspired …

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Anti-slip Treatment on Glazed Ceramic Tiles: Microstructural and Topographic Modifications

In the literature, many works deal with the microstructural modification of glazed tiles in an acidic or basic environment [1–3]. The few works concerning the use of chemical etching as a means of anti-slip treatment consider the problem in terms of safety without studying more deeply the ceramic surface characteristics [4–5]. A deep knowledge of …

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Capturing Cellular Dynamics with Millisecond Temporal Resolution

Employing optogenetic tools a flash of light can trigger a dynamic cellular event. For example, by using the light activated ion channel (channelrhodopsin) a synaptic transmission can be stimulated in a neuron. By alignment of the triggered light stimulation with high-pressure freezing, regulated vesicle fusion and the subsequent vesicle recycling at synapses can be subsequently …

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New Paths in Glaucoma Therapy – Operation Video Supports Knowledge Transfer in Eye Surgery

Glaucoma causes gradual damage to the optic nerve that can lead to blindness. The most  common reason for glaucoma is elevated intraocular pressure. This happens when the normal balance of production and drainage of aqueous humor in the eye is disrupted, usually by impaired outflow. The aqueous humor, a clear fluid in the interior and …

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Establishment and Characterization of an Omasal Epithelial Cell Model Derived from Dairy Calves for the Study of Small Peptide Absorption

The objective of this study was to establish a primary culture of omasal epithelial cells (OECs) derived from dairy calves and to characterize its function in small peptide absorption. Bovine omasal tissues were obtained from newborn Chinese Holstein calves and digested with a 2.5 % trypsin solution to obtain OECs. The isolated cells were later cultured …

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Colonization of Potato Rhizosphere by GFP-Tagged Bacillus subtilis MB73/2, Pseudomonas sp. P482 and Ochrobactrum sp. A44 Shown on Large Sections of Roots Using Enrichment Sample Preparation and Confocal Laser Scanning Microscopy

The ability to colonize the host plants’ rhizospheres is a crucial feature to study in the case of Plant Growth Promoting Rhizobacteria (PGPRs) with potential agricultural applications. In this work, we have created GFP-tagged derivatives of three candidate PGPRs: Bacillus subtilis MB73/2, Pseudomonas sp. P482 and Ochrobactrum sp. A44. The presence of these strains in …

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Imaging Pheromone Sensing in a Mouse Vomeronasal Acute Tissue Slice Preparation

Peter Karlson and Martin Lüscher used the term pheromone for the first time in 1959 to describe chemicals used for intra-species communication. Pheromones are volatile or non-volatile short-lived molecules secreted and/or contained in biological fluids, such as urine, a liquid known to be a main source of pheromones. Pheromonal communication is implicated in a variety …

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