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excitation in Medical News

Using Mobile Phones For 45 Minutes Causes Excitation In The Brain

A new study published in the journal Annals of Neurology, says that radiation emitted from mobile phones excites the neurons in the brain. //This is the first study to show that mobile phone affect the brain after years of health concerns over these gadgets. Italian researchers found in the c...

New therapy based on magnetic stimulation shows promise for non-drug treatment for migraine

... that cortical spreading depression, known as CSD and the animal correlate of migraine aura, was susceptible to TMS therapy, with the wave of neuronal excitation blocked on over 50 percent of occasions." The study findings showed that migraine aura responds to magnetic stimulation because TMS therapy blocks ...

MDS Analytical Technologies Announces Validation of Two More Kits for High-Throughput Detection of Melamine in Food

...nce to a cuvette equivalent pathlength of one centimeter. The patented dual-monochromator design uses two scanning monochromators to determine optimal excitation and emission settings, eliminating the need for expensive filters. Find out more at http://www.moleculardevices.com/pages/instruments/readers_main.ht...

Novel Photoconductive Cellular Depolarization Technology Reveals Insight Into Neuronal Growth, Guidance, and Regeneration

...derstanding and addressing areas of unmet neurological healthcare need. This novel technology provides researchers with the means to dynamically study excitation dependent cellular responses without the requirement for a direct physical link to the cell (such as with electrodes in patch clamping or transistor c...

People are more suggestible under laughing gas

...s oxide, like ketamine, acts as an antagonist at glutamatergic N-methyld-aspartate (NMDA) receptors which are found throughout the brain. A brain-wide excitation of these receptors might be responsible for the laughing gas-induced increase in imagery vividness found in the study. Alternatively, the gas may have...

Dr. Mei honored by mental health research charity for schizophrenia studies

...luding cancer and seizures, normally enable a healthy balance of brain cell excitation and inhibition. In 2007, Dr. Meis lab showed neuregulin-1 and its receptor,...the neuregulin-1 gene. He believes even a subtle imbalance in brain cell excitation and inhibition helps explain the cognitive problems in schizophrenia and po...

IU Health & Wellness: New research findings from the Kinsey Institute

...ears on a theoretical model that focuses on sexual excitation and sexual inhibition. They refer to this as the d... risk taking. To measure the propensity for sexual excitation and inhibition, the researchers designed a questio...ed to gain insight into the role of inhibition and excitation proneness in predicting sexual problems in a non-c...

UCLA researchers design nanomachine that kills cancer cells

...ores and attack the cell. Confocal microscopic images showed that the impeller operation can be regulated precisely by the intensity of the light, the excitation time and the specific wavelength. "We developed a mechanism that releases small molecules in aqueous and biological environments during exposure...

Disgusting videos used to study coping methods

...tive reappraisal, the reinterpretation strategy, led to reduced negative emotion as measured by subjects' facial expressions, by fMRI images of neural excitation and by the participants' self-report of how they felt. The technique affected the participants' feelings relatively quickly. Cognitive reappraisal ...

Dr. Mei receives 2008 Mathilde Solowey Lecture Award in Neurosciences

.... They discovered that the two proteins help keep a healthy balance between excitation and inhibition of brain cells. In 2007, Dr. Meis research, published in Neu...rotransmitter. In 2000, his research team showed neuregulin-1 suppresses excitation at excitatory synapses, communication points between neurons where the neur...
excitation in Medical Technology

Novel Photoconductive Life Science Research Innovation Enables Rapid, Reproducible, and Non-Invasive Cellular Excitation

From Neurons to Beyond; Advancing the Frontiers of Life Science Research Toward Realizing Healthcare Solutions in Areas of Clinical Need Such as Parkinson's, Alzheimer's, and Autism BOSTON, Sept. 19 /PRNewswire/ -- Neurosilicon (http://www.neurosilicon.com ) has announced the availability o...
excitation in Medical Products

BTF111 MiniFluo Miniature Fluorometer

Description:... The BTF-111 miniature arrayed detector ?uorometer is a user-con?gured spectrometer for ?uorescence applications from 250-600 nm. Con?gurable excitation light source modules provide the ?exibility of 2D ?uorescence measurement which are easily conducted at any wavelength....
Company:B&W TEK, INC

RF-Mini 150 Fluorometer

Description:...ini 150 Fluorometer offers a highly sensitive way to measure quantities as small as 1ng/ml of DNA specific Hoechst Dye. By switching to another set of excitation and emission filters, the RF-Mini 150 can measure RNA and DNA with ethidium bromide, or measure cell viability with fluorescein based tags. When sampl...
Company:Shimadzu Scientific Instruments, Inc.

DyNA Quant™ 200 Fluorometer

Description:... DyNA Quant™ 200 is a fixed wavelength fluorometer for 365 nm excitation and 460 nm emission. The spectral characteristics are specifically designed for the detection of double-stranded DNA using the standard Hoechst 33258 ...
Company:GE Healthcare

C&L Dye Fluorometer

Description:...que microprocessor-controlled filter wheels for wavelength selection in the illumination and detection optics. The filter wheels can be programmed for excitation and emission for numerous types of applications. With this fluorometer, you do not have to settle on measuring one or two wavelengths. The C&L Dye...
Company:C&L Instruments, Inc.

Applied Biosystems 7500 Real-Time PCR System

Description:...System is a versatile, leading edge platform offering enhanced performance capabilities and a future upgrade to high speed thermal cycling. Variable excitation and five-color detection enable you to use a broad range of fluorophores including FAM/SYBR Green I, VIC/JOE, NED/ TAMRA/ Cy3, ROX/Texas Red, and Cy5 ...
Company:Applied Biosystems

SpectraMax M2 multi-detection microplate reader w/ dual-mode cuvette port

Description:... a single read command. dual monochromators There is no need for expensive filters. The system uses two scanning monochromators to determine optimal excitation and emission settings. Changing methods or fluorophores requires only a few mouse clicks to optimize the system. patented PathCheck Sensor The PathC...
Company:Molecular Devices Corporation

Analyst AD (Non-Stacker Configuration)

Description:...Intensity, Fluorescence Polarization, Time-Resolved Fluorescence, luminescence and absorbance assays. A filter-based instrument that holds up to eight excitation and eight emission filters. Capable of operating in the UV and VIS range....
Company:Molecular Devices Corporation

Safire Multi-Detection Monochrometer Microplate Reader

Description:...ensity or time-resolved fluorescence at various wavelengths without changing any filters. Additionally it is possible to record full range absorbance, excitation and emission spectra. The optimal measurement mode for each application: SAFIRE is the only monochromator reader capable of carrying out top reading...
Company:Tecan

VICTOR2 multilabel counter with high density TR-fluorometry, stacker and robot loading

Description:...ar VICTOR2 multilabel counter with the high density TR-fluorometry, stacker and robot loading options. The extra high density TRF option minimizes the excitation beam for TRF which is beneficial in high density plates e.g. 864-well plates....
Company:PerkinElmer Life And Analytical Sciences, Inc.

SteREO Lumar.V12

Description:...cimens at all magnifications, with the highest contrast and unprecedented 3D view. HiLite - an independent zoom for optimal adaptation of fluorescence excitation allows customized illumination based upon the specimen. New NeoLumar S objectives meet the demands of fluorescence microscopy down into the UV range. ...
Company:Carl Zeiss MicroImaging, Inc.
excitation in Medical Definition

Depolarization-induced suppression of inhibition

... these cells from both climbing fibres and parallel fibres (Kreitzer et al. 2001b). This phenomenon was termed depolarization-induced suppression of excitation (DSE), and differs from DSI only by the kind of neurotransmitter whose release is reduced. In the case of DSI, the result is a reduction in inhibitory...
excitation in Medical Dictionary

Myotonia congenita

...gst other problems, causes delayed relaxation of the muscles . The disorder is caused by mutations in a gene responsible for shutting off electrical excitation in the muscles, causing... Paramyotonia Congenita (PC), also known as Paramyotonia congenita of von Eulenburg or Eulenburg disease, is a rare ...

Desensitization

...m is designed to ... The items used for desensitization vary, depending on what the affected area ... An experiment tested desensitization and excitation effects of video violence on ... Results indicate support of desensitization theory for information presented ... Eye Movement Desensitizatio...
excitation in Biological News

Neuronal conduction of excitation without action potentials based on ceramide production

Researchers from the Laboratoire de Physiologie Neurovg tative (CNRS-INRA-Universit Paul C zanne), the Laboratoire de Chimie Biologique Applique (INRA-Universit Paul Czanne) and from the D partement Lipoprotines et M diateurs Lipidiques (INSERM, Hopital Purpan Toulouse), and in particular Profes...

Striking the right balance between excitation and inhibition

Neurons in the brain and spinal cord come in two flavors, excitatory neurons that transmit and amplify signals, and inhibitory neurons that inhibit and refine those signals. Although investigators have long appreciated that these two classes of neurons exist in the central nervous system, little i...

New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report

...4. Lasers - A Primer II-15 Ordinary Light Vs. Laser Light II-15 Primary Components of a Laser Device II-16 Laser Medium/Material II-16 excitation Mechanism/Pump Source II-16 Feeding Mechanism II-16 Cooling System II-16 Microprocessor II-16 5. Market Segmentation II-17 Solid-...

Protein identified as critical to insulating the body's wiring could also become treatment target

... and decisions about appropriate social behavior occur. They showed that neuregulin-1 and another receptor, ErbB4, help keep a healthy balance between excitation and inhibition of brain cells. Their studies published in Neuron in 2007 showed neuregulin-1 and ErbB4, promote inhibition at the site of inhibitor...

Mollusks taste memories to build shells

...e basic concept behind the neural net model, which was first described by physicist Ernst Mach in 1865 to explain visual illusions, is that centers of excitation in the retina, for example are surrounded by areas of inhibition. Local activation/lateral inhibition applies to many types of neuronal activity and...

UConn chemists find secret to increasing luminescence efficiency of carbon nanotubes

...s and probing their luminescence properties. The more luminescent the nanotube, the brighter it appears under infrared irradiation or by electrical excitation (such as that provided by a light-emitting diode or LED). A number of important applications may be possible as a result of this research, Papadimitra...

Studies point to novel target for treating arrhythmias

...sing optical imaging, he and colleagues in the Vanderbilt Institute for Integrative Biosystems Research and Education (VIIBRE) measured how electrical excitation traveled across the hearts expressing troponin mutants or treated with calcium-sensitizing agents. These experiments defined the electrical underpinni...

Biophysical Society selects 2009 Distinguished Service, Emily M. Gray and Society Fellow recipients

...hysics. The Fellows are: Donald M. Bers, University of California, Davis, for his contributions to the field of cellular and molecular biology of excitation contraction and coupling in the heart; Betty Gaffney, Florida State University, for being in the investigative forefront of spin labeling techn...

New electrostatic-based DNA microarray technique could revolutionize medical diagnostics

...se current techniques typically depend upon fluorescence detection, a demanding methodology that requires time-consuming chemical labeling, high-power excitation sources, and sophisticated instrumentation for scanning. Such demands are generally well beyond the capabilities of individual laboratories or clinics...

ASU researchers synthesize molecule with self-control

...non-photochemical quenching (NPQ). This process drains off the excess light excitation energy as heat so that it cannot generate the destructive high-energy speci... molecules change to a different molecular structure, BT, that drains light excitation energy out of the porphyrin and converts it to heat, avoiding the generatio...
excitation in Biological Technology

Researchers putting a freeze on oscillator vibrations

...e average phonon occupation, to one quantum. "Our goal is to get to and work with the quantum mechanical ground state in which there is very little excitation or displacement," Wang said. Reaching one quantum would require a temperature just a few thousandths of a degree from absolute zero (minus 459.67 degr...

Amnis Launches New ImageStreamX Imaging Flow Cytometer

...gery and functional insights of microscopy. The new ImageStreamX greatly expands the capabilities of the platform with faster sample throughput, more excitation lasers and detection channels, higher image quality, and greater productivity. (Photo: http://www.newscom.com/cgi-bin/prnh/20090508/SF14254 ) ...

Progress toward new storage media

...rectly. To increase storage capacity, the individual magnetic domains are made smaller and smaller; we are however getting close to the limit. Thermal excitation occasionally causes some of the magnetic particles to flip in the other direction. When the domains are very small, the entire cell can rapidly lose i...

Denser, more powerful computer chips possible with plasmonic lenses that 'fly'

...lithography, a patterning technique that dominates modern integrated circuits manufacturing. By combining metal lenses that focus light through the excitation of electrons - or plasmons - on the lens' surface with a "flying head" that resembles the stylus on the arm of an old-fashioned LP turntable and is si...

Safer, easier system for remote explosive detection

...s. Goodson's remote detection scheme relies on highly sensitive, low-cost, battery-free, thin film sensors which require no electronic equipment or excitation source at the sites where they are installed. In contrast, conventional chemical TNT sensors for explosive detection have no remote capability and mus...

Nikon Instruments Launches Fully-Automated A1 Confocal Laser Microscope Series

...al resolutions or channel widths are available (2.5nm, 6nm and 10nm), simultaneously covering up to 320nm of spectrum at each frame scan. Simultaneous excitation using up to four laser lines can be achieved with frames speeds of two fps at 512 x 512 pixel resolution, or as fast as 16 fps at 512 x 64 pixels. Nik...

CRi Announces Maestro 2, the Next Generation in Vivo Optical Imaging Systems

...omputer-controlled automation through a new, user-friendly interface provides easy zoom and focus adjustments and a rapid selection of a full range of excitation and emission filters. The Flex(TM) liquid crystal tunable filter (LCTF) provides fast, accurate spectral imaging from 500 to 950 nm, covering the full...

Near Infrared Technology and Optical Agents For Molecular Imaging

...lls can be implanted into animals and, following excitation with an appropriate light source, the fluorescen...ns can be detected by means of a CCD camera. The excitation and emission wavelengths of commercially availab...mes. The fluorescent labels can be visualized by excitation with an appropriate light source and the emitted...

Serial Dilution with the Bravo Liquid Handling Platform

...ition 6. 11. Plates are centrifuged at 1800 rpm for 60 seconds to ensure consistent well menisci. 12. Fluorescence absorption is read at 485nm excitation and 535nm emission wavelength with a gain of 63, 5 flash cycles, and a 40 ms integration time. A similar serial dilution method by ...

Kodak in vivo imaging system: precise coregistration of molecular imaging with anatomical X-ray imaging in animals

...r window ( Fig. 1a ). For fluorescence, excitation light from a high-intensity lamp is directed through the selected excitation filter to the animal. Fluorescence from... is then emitted and separated from the excitation light as it passes through the patented ...
excitation in Biological Products

Pulsed Blue LED Excitation Source, 470 nm center wavelength from Ocean Optics

Description: Blue LED produces output at 470 nm; includes interface cable to S2000; can be mounted with an S2000 or installed into rack or desktop boxes The LS-450 Blue LED Pulsed Light Source is an LED that produces either pulsed or continuous output at 470 nm -- the blue region -- for fluorescence measureme...
Company:Ocean Optics

Autofluorescence Eliminator Reagent from CHEMICON

Description:...ding neurons. The presence of lipofuscin granules can complicate the use of fluorescence microscopy in the central nervous system because of its broad excitation and emission spectra, which overlaps with those of most commonly used fluorophores. The Autofluorescence Eliminator Reagent (Catalog Number 2160) will...
Company:CHEMICON

LVF Kit: LVF-HL, LVF-CUV-ADP, FHS-LVF, CVD-DIFFUSE from Ocean Optics

Description:...10 mm quartz substrates -- are especially useful for spectrally shaping the excitation energy from broadband sources used for fluorescence. Features: Excellent ...effective range • Filters effective 300-750 nm • Spectrally shape excitation source energy The LVF-KIT consists of the LVF-HL adjustable-pass filter p...
Company:Ocean Optics

LVF Kit: LVF-UV-HL, LVF-CUV-ADP, FHS-LVF, CVD-DIFFUSE from Ocean Optics

Description:...10 mm quartz substrates -- are especially useful for spectrally shaping the excitation energy from broadband sources used for fluorescence. Features: Excellent ...effective range • Filters effective 300-750 nm • Spectrally shape excitation source energy The LVF-KIT consists of the LVF-HL adjustable-pass filter p...
Company:Ocean Optics

CELL LAB QUANTA* Flow Cytometer from Beckman Coulter

Description:...f Coulter volume and fluorescence provides unsurpassed population resolution capabilities and accurate cell counting. This flow cytometer has multiple excitation wavelengths, including UV, allowing flexible fluorochrome selection for a variety of multi-color applications typically only achievable with larger, m...
Company:Beckman Coulter

LS Series Microarray Laser Scanner from Tecan

Description:...type or size changes. An example of this integrated scanning flexibility is Tecan's new LS Series of laser scanners, which can operate up to 4 excitation lasers and 28 emission filters. In addition to the standard glass array, they can be used to scan a wide range of biochip/microarray substrates, such ...
Company:Tecan

CaspSCREEN from CHEMICON

Description:...e of the substrate by cellular caspases or apoptosis-related proteases, the released rhodamine 110 gives rise to fluorescence that can be measured at excitation of 488 nm and emission of 530 nm. As the D2R substrate is more cell-permeable than other fluorometric caspase substrates, apoptosis can easily be mea...
Company:CHEMICON

Amplifluor UniPrimer II Fluorescein from CHEMICON

Description:...rimer provided in the Amplifluor Universal Detection System (S7901) and is provided at a concentration of 5.0 M. Fluorescence (Linear:Hairpin): 39. excitation = 495nm; Emission = 516nm....
Company:CHEMICON

B-Phycoerythrin Labeling Kit-NH2 from Abnova Corporation

Description:...removing small molecules in the sample protein such as Tris buffer and amine compounds that interfere with the assay or labeling reaction. The maximum excitation and emission wavelengths of the B-phycoerythrin-labeled proteins are 564 nm and 575 nm, respectively. This kit contains all of the necessary reagents ...
Company:Abnova Corporation

DNA Engine Opticon 2 Two-Color Real-Time PCR Detection System from Bio-Rad

Description:... The DNA Engine Opticon 2 real-time PCR detection system uses a fixed array of LEDs for fluorescence excitation (470-505 nm) and two photomultiplier tubes for 2-color detection (523-543 nm, 540-700 nm). The Opticon 2 system is built on an DNA Engine thermal cycl...
Company:Bio-Rad
excitation in Biological Definition

Neuron

...affected by the neurotransmitter) an electrical stimulation (an electrical excitation ) which will spread to the axon hillock generating an action potential which then travels as a wave of electrical excitation along the axon. Arrival of an action potential at the tip of an axon trigge...

Photon

...k φοτος, meaning light ) is a quantum of excitation of the quantised electromagnetic field and is one of the elementary part... of phrasing it is to say that the photon, by being blended with the matter excitation to form a polariton, acquires an effective mass , which means that it cann...
excitation in Biological Dictionary

Uropod

...re investigated in ... It is also suggested that the uropod response to body rolling during walking is ... II. Modulation Of uropod motoneurone excitation by leg proprioception. M ... The uropod motoneurones showed little or no synaptic response when the treadmill ... Product Condition: The Uropod ...

Autonomic nervous system

... actions of the autonomic nervous system are largely involuntary (in contrast ... ... nervous system – consciously perceived sensations – excitation of skeletal muscle – one neuron connects CNS to organ • Autonomic nervous system – unconsciously ... The autonomic nervous system ...
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