Wednesday, 12 February 2014

Scientists Can Overhear On Bacterial Communication Now!

CMOS
Researchers from New York have developed a chip with which they are able to observe the communication of a colony of micro organism. The chip itself can also check the growth of the colony. Ken Shepard and Lars Dietrich know are the two researchers from Columbia University in New York City; who has developed a chip that allows them to spy on their communication.

Specifically, the researchers eavesdrop on the bacteria type Pseudomonas aeruginosa and watching them with a CMOS chip. The chip is a glass slide on which the bacterial colony is located. This is an electrochemical sensing device integrated channels with electrodes and potentiometer to infer the data. Thus, the signals of their communication of the colonies of bacteria are detected and gathered in real time. Cells mediate their activity by secreting some chemicals.

The New York researchers focused primarily on those phenazines and these are metabolites that control gene expression. Their study revealed that bacterial colonies produced Phenazines, which probably contributes to the shape of the colony, says Dietrich. This is an important finding in this field. Destroy hearing and In her essay in the journal Nature Communications, the researchers not only describe s how we can listen to the chip and how we can use the chip to interpret the discussion of the micro organic colonies.


Hence this chip is not only in research use, but could be integrated into medical devices because of their anti bacterial effect, especially in those in which frequently used such as catheters and others.

Sunday, 9 February 2014

A robot spider that moves on its own thread!


Spider Robot
A group of researchers from the Swiss Federal Institute of Technology in Zurich, Switzerland, has developed a robot spider capable of moving in a vacuum vertically along a solid wire that fabricated from a thermoplastic adhesive. Such robots could be used for extraterrestrial exploration adapting to changing terrain. LiYu Wang, a member of the team, told in detail. The spider robot developed at the Swiss Federal Institute of Technology in Zurich moves vertically along a solid wire. It manufactures thereof at progressively from thermoplastic adhesive sticks which is heated and stretched. It can carry payloads up to 10.9 kg in its current configuration.

A team of researchers from Bio -Inspired Robotics Laboratory (BIRL) has unveiled this robot spider that produces itself a plastic wire which he uses to travel into space, vertical. In their scientific article published in the journal Bioinspiration & Biomimetics, they explain that the interest of this innovation is that it can be used to develop hybrid robots to land and air time capable of carrying payloads. Another advantage of the system is that the robot adapts the thickness of the wire according to the weight it carries.

The technical challenge with which the team had to deal BIRL was to ensure that the robot makes its wire while moving with only physical support of wire itself. It was therefore necessary to develop an autonomous system capable of producing the wire associated with a mechanism for moving and guiding. The robot weighs 185 grams to 18 cm tall, 5 wide and 3 thick. “The mechanical part includes mechanisms extrusion and pultrusion," says LiYu Wang, one of the researchers involved in the project , which is also a member of the IET (Institution of Engineering and Technology). The technology uses the thermoplastic glue stick, the same as we use for other jobs.

The adhesive is heated to between 65 and 75 ° C to be extruded through a nozzle into a process similar to the spider secretion produced by the ampullary gland. A second phase: glue spots pultrusion be spun stretching and solidify upon contact with air according to Newton's law of thermodynamics. The robot is operated by two motors. The first serves to urge the glue stick through the heating system and the nozzle on a linear axis via a ball screw system. The second motor mechanism actuates the “deformation - locomotion”, which consists of two wheels of 12 mm diameter which will both stretch the wire while sliding the robot progressively. Everything is powered by two lithium -ion batteries.

In its current configuration, the robot can carry a maximum load of 10.9 kg moving at 12 inches per minute. The robot that spins a web like a spider "The advantage of this technology lies in its flexibility, which allows you to adjust the thickness of the wire so that the robot can adapt to different loads while remaining self-sufficient," says Wang LiYu. He also confirmed that the system could be replicated on larger robots by adapting the configuration of extrusion pultrusion accordingly. The next step for the team is to replace BIRL wheels legs, so that the robot can move on a solid surface, but also to switch over to another, like a spider on its web. The researchers believe that the solution would be to create legs inspired by the gecko with adhesive pads for grip. With this, the robot could then weave a fabric by forming vertical and horizontal on which it may then travel.

Ricoh announced a successor to the Pentax 645D.


Pentax 645D
Ricoh announced a successor to the Pentax 645D. The new medium format camera came with a CMOS sensor with high resolution include and has a tilting screen . The successor of the Pentax 645D will build a medium format camera with CMOS sensor Ricoh as well as the Hasselblad and Phase One.

So far, medium format cameras were used CCD sensors. The new technology will allow higher ISO values , lower shutter speeds and helps more for continuous shooting. The new camera is probably included with the 50 - megapixel sensor, which also comes with Hasselblad and Phase One. It reaches a light sensitivity of ISO 6400 and measures 44 x 33 mm.

The Pentax 645D, a CCD sensor was used with a resolution of 40 megapixels. The 645D came in early 2010 in Japan and 2011 in Germany on the market. It will cost around 10,000 Euros. The camera body measures 156 x 117 x 119 mm and weighs with battery and two memory cards around 1,480 grams. Still, there is little information on the new Ricoh model.

The Japanese manufacturer revealed only that his new camera to achieve a very high processor speed, and published two pictures of a prototype. The official launch is expected to take place on the Japanese photo exhibition CP +, from 13 to 16 February 2014. Compared to the previous Pentax 645D there is a particularly striking change.

The display of the new camera is foldable, so that recordings can be controlled close to the ground or overhead, and the user need not use the optical viewfinder. Ricoh wants to bring this still nameless camera in spring 2014 on the market. In addition, the manufacturer offers a new lens system with this. The ultra-wide- angle zoom lens should be able to be operated exclusively on this medium-format camera.

Samsung Brings Android 4.4 Kitkat Update To Ten Galaxy Models


Samsung romour
Samsung plans to offer an update to Android 4.4 Kitkat for at least ten Galaxy models. Here are six Galaxy Smartphones, a Galaxy Tab and other three Galaxy note versions. Although the dates are mentioned, but at least a list of devices of Samsung for which an update to Android 4.4  Kitkat is planned.

The corresponding list and details were received from a person who is involved in the update plans from Samsung. Thus, six different Galaxy Smartphones, a Galaxy Tab and Galaxy note three models will get an update to Kitkat. From December 2013 to till end of Jan.2014 the Galaxy S4 and the Galaxy Note 3 has received an Android 4.4 Update. But still firmware updates is pending few part of Europe.

And it is expected that Galaxy S4 will receive kitkat update in the forth coming weeks. In addition, Samsung will provide an update to Android 4.4 for the Galaxy S3 Smartphone models, Galaxy S3 Mini, Galaxy S4 Active, Galaxy S4 Zoom as well as the Galaxy Mega 6.3. It is quite unusual that although the Galaxy S3 Mini will get an update, but not the S4 Galaxy Mini. If Samsung is not significantly ramps up this list, the vast majority of current Galaxy Smartphones remains excluded from the update.

In addition to the Galaxy Note 3 should and even its predecessor, the Galaxy Note 2 will receive an update on the current Android version. In addition, the Kitkat update for the Galaxy Note 8.0 is planned. Whether the Galaxy Note 10.1 receives update to Android 4.4, is not known. It is envisaged to Android 4.4 for the Galaxy Tab 7.0 an update 3. Therefore there is no update is currently planned for other Samsung tablets.

It remains to hope that Samsung still do the best at the earliest. On the other hand, this would mean that almost all Galaxy Tab models are excluded from the update. This would also apply to the Galaxy Tab 3 7.0 Lite, which has just come on the market in even with Android 4.2 and some with Android 4.3. Samsung there is no official confirmation about what Galaxy models will get an update to Android 4.4.

Previously it was quite common in Samsung that always only a few devices from the luxury class will get update to the latest Android version. Models for beginners from Samsung usually get no Android updates and stay with the Android versions with which they have come onto the market.

Mozilla releases Tile Based Firefox 28 Beta for Windows 8 Touch


Firefox 28 Beta for windows 8 touch
Mozilla has released a beta version of Windows 8 App of Firefox 28. This is adjusted to Microsoft Modern Metro and optimized for touch operation, so that it is of particular interest to focus on Windows 8 tablets. Firefox for Windows 8 Touch, Mozilla calls it as the latest beta version of Firefox 28, which is available as a Windows 8 App.

Thus it differs from the standard Windows Desktop version of Firefox. The typical swiping Windows 8.x as well as pinch-to- zoom are supported, so that with a finger gesture you can move over comfortably into the website, you can zoom in and can be zoom out. The version is therefore primarily intended for owners of Windows 8 tablets or devices with a touch screen.

 " Touch Firefox Beta for Windows 8 has a home screen with direct access to favorites and browsing history. Other features of Firefox, such as the Awesome Bar are always available, “said Mozilla in a statement. The beta version works normally in full screen mode, but can also be placed on the relevant Windows functions in addition to another app, so that both can be viewed simultaneously.

The Metro version of Firefox will bookmark important pages and the course in the form of tiles to blend into the design guidelines from Microsoft. Thus, the operation of the browser should be easier Mozilla promises. The Firefox browser dominates the Windows parts function, so that web pages can be passed on to other apps also. It enables users to use the Metro version of Firefox, must be made Firefox the default browser for Windows 8.

For in the Modern UI world can always use only one browser. Once that's done, a matching Firefox tile is on the home screen of Windows 8 or Windows 8.1. The beta version uses the same browser engine that is also used in the Windows desktop version of Firefox. In the current version of Firefox, the Gamepad API is enabled, VP9 video decoding and Opus in WebM is supported and there is a volume control for HTML5-Audio/-Video.

Under Mac OS X the Notification Center is used for web notification. Since March 2012 Mozilla is working on developing a browser for the new Modern UI interface of Windows 8 alias called Windows 8.1. A first pre-release version of Firefox as Windows 8 app was released in September 2013. Mozilla provides the beta version of Firefox for Windows 8 Touch free to download.