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Bugs from space to increase the electrical output of the fuel cells Bugs from space to ... - 0 views

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    Microbial Fuel Cells, which work in a similar way to a battery, use bacteria to convert organic compounds directly into electricity by a process known as bio-catalytic oxidation.
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Extracting energy from the waste water and salt water - 0 views

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    The technologies Logan refers to are microbial fuel cells (MFC)- which use wastewater and naturally occurring bacteria to produce electricity - and reverse electrodialysis (RED) - which produces electricity directly from the salinity gradient between salty and fresh water. The combined technology creates a microbial reverse-electrodialysis cell (MRC).
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Researchers create self-assembling nanodevices that move and change shape on demand | K... - 0 views

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    Harvard researchers have created nanodevices made of DNA that self-assemble and can be programmed to move and change shape on demand. The nanodevice structure is based on the principle of tensegrity: its strength and stability results from the way it distributes and balances the counteracting forces of tension and compression. This new technology could lead to nanoscale medical devices and drug delivery systems, such as virus mimics that introduce drugs directly into diseased cells. Or it could one day be used to reprogram human stem cells to regenerate different kinds of injured organs and tissue.
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Technology: Necessary but Insufficient for Human Survival | Thinkahol's Blog - 0 views

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    In the context of technology the only way out is through. Global society is dependent on artificially inflated energy resources-i.e. oil-that are directly leading us toward total collapse. Technology is being used to most efficiently maximize wealth of the largest corporate conglomerates at the expense of the social fabric and a living environment. The biosphere is in fact collapsing. The technology exists to solve our technical problems but the solutions do not seem like they will be effectively put to use. The power structures concentrating money off the status quo are too entrenched. Each human is called on to become more aware.
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Historic first images of rod photoreceptors in the living human eye - 0 views

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    ScienceDaily (June 9, 2011) - Scientists have just reported that the tiny light-sensing cells known as rods have been clearly and directly imaged in the living eye for the first time. Using adaptive optics (AO), the same technology astronomers use to study distant stars and galaxies, scientists can see through the murky distortion of the outer eye, revealing the eye's cellular structure with unprecedented detail. This innovation, described in two papers in the Optical Society's (OSA) open access journal Biomedical Optics Express, will help doctors diagnose degenerative eye disorders sooner, leading to quicker intervention and more effective treatments.
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Natural brain state is primed to learn - life - 19 August 2011 - New Scientist - 0 views

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    Apply the electrodes... Externally modulating the brain's activity can boost its performance. The easiest way to manipulate the brain is through transcranial direct current stimulation (tDCS), which involves applying electrodes directly to the head to influence neuron activity with an electric current. Roi Cohen Kadosh's team at the University of Oxford showed last year that targeting tDCS at the brain's right parietal lobe can boost a person's arithmetic ability - the effects were still apparent six months after the tDCS session (newscientist.com/article/dn19679). More recently, Richard Chi and Allan Snyder at the University of Sydney, Australia, demonstrated that tDCS can improve a person's insight. The pair applied tDCS to volunteers' anterior frontal lobes - regions known to play a role in how we perceive the world - and found the participants were three times as likely as normal to complete a problem-solving task (newscientist.com/article/dn20080). Brain stimulation can also boost a person's learning abilities, according to Agnes Flöel's team at the University of Münster in Germany. Twenty minutes of tDCS to a part of the brain called the left perisylvian area was enough to speed up and improve language learning in a group of 19 volunteers (Journal of Cognitive Neuroscience, DOI: 10.1162/jocn.2008.20098). Using the same technique to stimulate the brain's motor cortex, meanwhile, can enhance a person's ability to learn a movement-based skill (Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.0805413106).
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Physicists create tap-proof waves - 0 views

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    ScienceDaily (Apr. 4, 2011) - Scientists at the Vienna University of Technology (TU Vienna) have developed a method to steer waves on precisely defined trajectories, without any loss. This way, sound waves could be sent directly to a target, avoiding possible eavesdroppers.
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Norms, "Ideology", and the Move against "Functionalist" Sociology « Ether Wav... - 1 views

  • However, at the same time, another critique questioned the basic validity of that framework. This critique shared the SSK critique’s interest in describing actual scientific work, but, like Mertonian sociology, it focused on scientists’ and others’ sense of the essence of scientific culture without directly addressing knowledge-production processes. This critique held that, because “functionalist” ideal-type systems of scientific behavior could not actually be found in their pure form, such systems did not meaningfully exist. Legitimate sociology had to be obtained inductively from the empirical record, as studied by historians and ethnologists.
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    Very interesting summary of debates on SSK and Mertonian science studies during the mid-20c. Describes the move away from functional, ideal-type, descriptions a la Merton to more historically specific microhistories a la Daston.
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