Our writers talk back

Some of the previous contributors to the Green Room respond to readers' questions and comments.

news.bbc.co.uk

Tech fair offers greener vision

Analysts at the Consumer Electronics Show say green credentials of tech products will become critical to success.

news.bbc.co.uk

China alert over bird flu death

Chinese authorities shut down and clean poultry markets in Hebei province, after the first human death in nearly a year.

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Poetry or science?

Is romantic love just a chemical cocktail?

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Eat it or lose it - why centuries of crop diversity are at risk

Centuries of crop diversity are at risk of being lost forever as farmers turn to just a few modern, high yielding varieties.

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Canadians claim South Pole record

A trio of Canadians claim a new record for the fastest trek across Antarctica to the South Pole.

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Zimbabwe troops 'eat elephants'

A Zimbabwean wildlife campaigner tells the BBC that soldiers are being given elephant meat to eat, as the economic crisis deepens.

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Animal matters

Scotland's debate over tests on primates

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Panda bites his third tourist in two years at Beijing zoo

A panda at Beijing zoo bites a man for the third time in two years.

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First flight of algae-fuelled jet

Continental Airlines is the latest to test fly a jet biofuel, this time with a product derived partially from algae.

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Beagle hunter

On a mission to find the most famous ship of science

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Holes give edge to new armour

Scientists from the UK Ministry of Defence (MoD) have devised ultra-hard vehicle armour to protect military personnel.

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'Wolfman' returns

Explorer Jim McNeill tracks down Arctic wolves

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Feilden's blog

Ground-breaking new technique in stem cell science

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Baby Jupiter's huge weight gain

The planet Jupiter must have gained mass fast during its infancy, according to astronomers.

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Mummy of female pharaoh uncovered

Egyptologists find remains of a mummy thought to belong to a queen who ruled 4,300 years ago, Egypt's antiquities chief announced.

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Black holes 'preceded galaxies'

Astronomers believe they have solved a cosmic chicken-and-egg question: what came first - black holes or galaxies?

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Body repair 'could be ramped up'

A combination of drugs could trick the body into sending its repair mechanisms into overdrive, say scientists.

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Earth Watch

Why it is hard to predict sudden environmental crises

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Venomous mammal caught on camera

Rare footage of one of the world's most strange and elusive mammals is captured by scientists.

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Heat may spark world food crisis

Half the world's population could face food crisis by 2100 as soaring temperatures cripple staple crops, scientists warn.

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A deep-sea fish caught in the Pacific has mirrors for eyes

A deep-sea fish caught in the Pacific has eyes which use mirrors as well as lenses, scientists discover.

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US vows 'huge' marine protection

The US is to establish "the largest area of protected sea in the world", banning fishing and mining, around its Pacific islands.

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Mosquitoes make sweet love music

Sexy songs sung by mosquitoes in courtship could be key to curbing the spread of dengue fever, say scientists.

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Everest trip helps critically ill

Blood oxygen levels recorded on a trip by medics to Everest could help the treatment of critically ill patients.

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 Science > Technology > Electronics > Signal Processing

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Science > Technology > Electronics > Signal Processing

Signal Processing:

Avren International

Products and services for the telecommunications and IT sector.

http://www.avren.co.uk

Graand

Free Classified Ads Portal

www.graand.com

Bayesian Blind Source Separation

Describes the blind separation problem and attacks it from a Bayesian perspective.

http://www.biophysics.mcw.edu/BRI-people/Rowe/BSSintro.html

ELECARD Inc.

Digital image and signal processing software development.

http://www.elecard.com

Firefly Technology

Technical representative for signal processing and system-on-chip solutions.

http://www.fireflytech.com

IAF - innovative radio systems techniques

Development and research of radio systems techniques. Site is in German and English.

http://www.iaf-bs.de

Instrumentation and Signal Processing Group

The work of the ISP research group is directed towards the development and use of new instrumentation and techniques for the acquisition and processing of information from both natural and man-made signal sources.

http://www.cyber.rdg.ac.uk/ISP/

MMSP 2001

IEEE Workshop on Multimedia Signal Processing.

http://mmsp01.eurecom.fr/

Parallel Rules Inc.

Engineering research and development and project development for clients in the areas of embedded systems, real-time control, sensors, algorithms, DSP, and image processing. Handles mixtures of hardware and software development on a range of platforms.

http://www.parallel-rules.com

The Prosig Signal Processing Pages

A collection of articles and papers on aspects of signal processing relating to acoustics, noise and vibration. Includes practical stories, problem-solving techniques, tutorials, reference materials.

http://www.prosig.com/signal-processing/

RFEngines Limited

Provide wideband signal processing and analysis for the wireless communications, defence systems and instrumentation markets with information on the company, products, news, employment and contacts.

http://www.rfel.co.uk

SCOOP

Research project for designing, fabricating and characterizing semiconductor components for ultra-fast optical signal processing in optical communication fibre networks.

http://scoop.com.dtu.dk/~scoop/

SigLab - Graphical Signal Calculator

Graphical calculator designed for working on signals. You may load, save or generate signals and do various operations on and between the signals.

http://freealter.org/eng/ProjetsLibres/siglab

Signal Processing

Contains data, papers, software, newsgroups, bibliographies. Links to other research and development sites.

http://spib.rice.edu/

Signal Processing Technologies

Broad line of high-performance analog-to-digital converters (ADCs), digital-to-analog converters (DACs), comparators, track-and-hold amplifiers and video products.

http://www.spt.com/

Understanding Surface Acoustic Wave (SAW) Devices

Short articles on a variety of SAW devices for mobile and wireless communications.

http://www3.sympatico.ca/colin.kydd.campbell

ZSP Signal Processing

Audio signal and digital signal processing hardware and solutions from LSI Logic. Includes dsp communications solutions, IP cores, and VOIP products.

http://www.zsp.com