Tuesday, 15 September 2015

Cancer Patient Receives 3D Printed Ribs

3D_Printed_Ribs

Cancer Patient Receives First 3D Printed Rib Cage


A 54 old cancer patient from Spain has become the first person in the world to receive a 3D printed RIB CAGE who had been suffering from a cancerous tumour which had grown around his rib cage and sternum. A section of it had to be removed to cut out the growth completely.

However, rather than changing the ribs with a metallic plate as is the custom, surgeon at Salamanca University Hospital requested Anatomics, an Australian firm to make a personalized titanium imitation. By scanning the patient’s sternum and the rib cage, the team designed a customized model utilising a 3D printer provided by Australia’s national science agency – CSIRO.

Additive manufacturing research leader at CSIRO, Alex Kingsburg informed that `the reason 3D printing was preferred in making this implant was because it needed to be customised accurately to suit the patient since no human body tends to be the same and hence every implant would be different’. He further adds that it would have been an extremely complex piece to create usually and would have also been impossible.

CSIRO’s 3D Printing Facility Lab 22



After the 54 year old Spanish had been diagnosed with a chest wall sarcoma, the surgical team made a decision to remove his sternum an a part of his rib cage, to replace it with an implant where the implant was designed and manufactured by medical device company – Anatomics.

The device company used the CSIRO’s 3D printing facility Lab 22 in Melbourne, Australia. The surgical team comprising of Dr Jose Aranda, Dr Marcelo Jimene and Dr Gonzalo Varela from Salamanca University Hospital, were aware that the surgery would be a difficult one due to the complicated geometries that were involved in the chest cavity.

The process has been described in the European Journal of Cardio-Thoracic surgery. Dr Aranda has stated that they thought that they could create a new kind of implant which could fully customise to replicate the intricate structures of the sternum and ribs. They wanted to provide a safer option for the patient and improve their recovery post-surgery’. Hence the surgeon had sought the help of Anatomics.

Implant Out of Surgical Grade Titanium Alloy



On evaluating the complexity of the requirements, Andrew Batty, CEO of Anatomics informed that the solution lay in metallic 3D printing. He stated that they wanted to 3D print the implant from titanium due to its complex geometry and design.

He added that while titanium implants had previously been utilised in chest surgery, designs have not considered the issues related to long term fixation and flat and plate implants depend on screws for firm fixation which may tend to get loose over a period of time. This could however, increase the risk of complication and the possibility of a re-operation. With high resolution CT data, the Anatomics team were capable of creating a 3D reform of the chest wall as well as the tumour enabling the surgeons to plan and precisely define resection margins.

With this, Mr Batty informed that that they were able to design an implant with firm sternal core and semi-flexible titanium rods which acted as prosthetic ribs attached to the sternum. Operating with experts at CSIRO’s 3D printing facility, the team then developed the implant out of surgical grade titanium alloy. The implant was built using a $1.3 million Arcam printer according to Alex Kingsbury from CSIRO’s manufacturing team.

Monday, 14 September 2015

Samsung Galaxy A8

Samsung_Galaxy_A8

Samsung – Outstanding Features Huge Screen Mated to Thin Chassis


Samsung has made the Galaxy A8 smartphone official after rumours of which had been spreading for several months. The device’s outstanding feature is the huge screen mated to a super thin chassis which is the slimmest that Samsung has ever produced.

The Samsung Galaxy A8 is a good slim 5.7 inch smartphone and its matte metal frame feels expensive along with its smooth shimmery white back cover which is really plastic. There is a fingerprint scanner though a great security features on the home button beneath the screen, 4G LTE connectivity, a MicroSD and a big 3050mAh battery and the design is the same as seen in all Samsung phones.

The Super AMOLED touchscreen has a resolution of 1080p weighting only 151 grams. It is slimmer than the 6.3mm thick Huawei P8. Samsung has chosen Qualcomm’s Snapdragon 615 octa-core processor to power the Galaxy A8, besides 2GB of RAM, together with 16GB of internal storage memory.

 The rear camera comprises of 16 megapixels with an f/1.9 opening and a 5 megapixel wide-angle camera on top of the screen for selfies. Moreover, it also has a LG style hand gesture control, a wave rather than a clenched fist with a complete enhancement mode.

Solid Home Button Instead of Soft/Capacitive


Samsung is one of the few major manufacturers still using a solid home button instead of a soft or capacitive one and the fingerprint scanners in combined to this button making it easy to use. Being slim it tends to become easy to hold inspite of the phablet sized at 5.7 inches and the speaker, camera as well as the flash are lined across the back in that order, right above a Samsung logo.

The Samsung Galaxy A8 is a dual SIM device having both SIM slots supporting 4G SIM cards, but 4G only can be used on one SIM card at a time while the other drops to 3G. Moreover, the second slot is a hybrid slot which doubles up as the microSD slot.

Users can opt between dual SIM connectivity and storage expansion taking into consideration the price level.The Samsung Galaxy A8 runs Android 5.5.5 with Samsung’s own TouchWiz UI incorporated in it making the experience mediocre to a light stock Android especially as it comprises of various China only software features and a reworked localized user interface which indicates that in its present form, the Galaxy A8 will be a Chinese exclusive and available to be ordered online through Samsung’s store.

Device Similar to Earlier Model


With regards to an international launch, no announcement has been done by Samsung so far. Samsung could be preparing a super thin smartphone for release.

A video had been posted on YouTube portraying the Galaxy A8 in action and actually sourced from the TENAA Chinese regulatory board. It showed a device that seems similar to the model seen in earlier leaked images and the shape is resonant of the original Galaxy Alpha and a metal chassis is apparent though the phone seems thicker than what the rumours conveyed.

Details of the Samsung Galaxy A8 first started appearing in March when the name had been registered as a trademark together with the A6 and the A9. Thereafter, word about the device was spread by SamMobile in April disclosing some technical specification, prior to some early images of the phone.

Saturday, 12 September 2015

NASA’s Dirt-Scanning Satellite is Down to a Single Peeper

NASA

NASA’s - Soil Moisture Active Passive Satellite


Rocket mission to space is always a risky one and when things seem to go wrong, lethargy could lead to mishap. One such mission is the almost billion dollar Soil Moisture Active Passive – SMAP satellite that had lost one of its radar imagers a few months after coming online. SMAP’s sensors pair was intended to generate high resolution, extremely accurate maps of soil moisture, the core of the Earth’s water, energy as well as carbon cycles.

The blackened electric eye does not tend to blind the mission but does cause a hindrance to the satellite’s high definition mapping abilities and recently was announced by NASA that the extra eye was not coming back. SMAP had been launched by NASA in January to guard over the water which Earth stores in its soil where more than 97% of all the water on Earth is stored in the oceans.

The rest is sheltered up in ice caps and glaciers as of now and less than a single percent of all water on Earth seems to be in the form of soil moisture. However gallon for gallon, fraction of water seems to be of more importance than any other source on the face of the Earth which is due to the soil where the plants tend to grow.

Susceptible to Interference


The content of moisture in the soil regulates how many plants tend to grow in a certain area that controls how much carbon in absorbed out of the atmosphere. Moreover, when plants tend to absorb the carbon, they give out water vapour that provides the cool temperature on the Earth’s surface as it evaporates. The SMAP, after its winter launch tends to send soil moisture maps home in April.

 However towards July, something was incorrect with one of its paired sensors. Both the sensors were intended to collect data from the same slice of the RF spectrum but they use different systems. The `A’ in the SMAP, the active radar spring up energy from the Earth’s surface, taking the moisture readings centred on the return signature.

Dara Entekhabi, SMAP mission’s principal investigator and climate scientist at MIT informed that `the advantage is that it actually illuminates the surface having high spatial resolution, but is more susceptible to interference’.

Cause - Faulty Power Supply


The P in SMAP is the big cake pan shaped antenna that dangles off its side and as its name indicate, the passive microwave radiometer tends to sit back and gather the releases of the planet. It measures up a ton of data soil and can also see through clouds and tree cover though only views around 25 miles per pixel.

The active radar would have brought that resolution below to less than two miles but due to the active sensor affecting the big clock in the sky; the passive radiometer did everything on its own.Entekhabi has stated that the culprit was a faulty power supply and to amplify a signal, power was essential.

The failure could have been the result of faulty parts, a freak ion static occurrence or one of the several low probability events. The radar being unique was global mapping radar, producing a map every two to three days, according to Entekhabi and on a mission level, it crippled SMAP’s potentials in making high resolution maps and gather the data on how changes in soil moisture could affect long term climate.

The radar’s fleeting months of operation enabled NASA watch the climate change in real time, season vegetation changes, sea ice extent, and new bodies of water developed by melting permafrost. These maps are expected to be released later this month.

Ransomware: Porn App Took Secret Photos of Users


Ransomware
In a recent attack on the smartphone users by a highly luring adult player reveals the emergence of the ransomware in the smartphone segment. A US security firm called Zscaler had brought into focus a malicious Android based mobile application which brings ransomware to people’s devices without their knowledge.

This app was mainly an adult player which offered pornography but it secretly worked on taking pictures of the users through the popular front facing camera used for taking selfies. Later on this app stats locking the user’s devices and demands a ransom of $500 in order to unlock the device with a consistent message on the screen.

What are ransomware and how does it affect smartphone users? 

Ransomware are such apps which lock down the phones and demands money from the users in order to get back the control of the device. It even threatens them to release their private information, data and others or simply wipes out a device. Last month Intel Security has released a report which showed a significant increase in ransomeware attacks by 125% since 2014 targeting the computers and laptops.

Intel security chief had stated that ransomware are quite easy to make which can easily be made by a group of codes and offers great returns. Ransomware apps had seen a steep rise in the recent past due to its easiness of creation and opportunity of creating a large amount of money within a quick time interval. Ransomware apps basically rely on the embarrassment factor which can happen due to releasing of private information and data in the public sphere. Most of the time people’s reputation is at stake hence people resort to pay to the ransomware attackers in order to retrieve the control of their device.

How smartphone users can safeguard themselves from such ransomware? 

Ransomware isn’t new but it has been most on the computers and PC’s for the first time it is showing a potential threat to the smartphone segment which is a worrying factor. Applying certain common sense and following basic principles while using smartphone one can lower the potential being a victim of ransomware.

Some of the ransomware threatens to wipe out the device data which usually includes documents, photos and videos. In order to avoid any loss of data smartphone should back up their data in a regular fashion. In case any user becomes a victim of such ransomware then he can easily allow it delete the data without making the necessary ransom charges.

Always download apps from trusted app stores 

Apps should only be downloaded from the trusted app stores like Google Play Store which has higher level of security measures to remove any kind of ransomware from listing on its app store. Smartphone users should never download apps from the download link given in the mails.

Furthermore if you are a victim of current adult player ransomware then simply reboot your device in the safe mode and it will allow you to remove the third party malicious software easily. However this feature and method varies greatly from one handset manufacturer to other.

Friday, 11 September 2015

Mobile Calls Being Cut Off? Your Network May not be to Blame

network

Apple & Samsung Smartphones – Inspection of Handsets in Sending/Receiving Signals


Smartphones like Apple and Samsung have been facing official inspection on their technical expertise as part of an examination by Ofcom on how their handsets tend to manage calls. Ofcom is the communication regulator in the UK who regulates the TV and radio segments, fixed line telecoms, postal services and mobiles together with the airwaves through which wireless devices are said to operate.

Ofcom tends to operate under various Acts of Parliament which include the Communication Act of 2003 and functions within the powers and duties that have been set for it by the Parliament in legislation.

It has been stated in the Communication Acts that Ofcom’s chief duty is to promote the interests of citizens as well as consumers. Ofcom receives funds by way of fees from industry in regulating broadcasting and communication networks together with grant-in-aid from the Government.

The communication regulator has ordered a self-governing testing lab in order to calculate how the famous smartphone send and receive signals. It is also investigating if some models seem to be more likely than the others in suddenly cutting off conversations. The research is in progress with sharp political concern on mobile coverage as well as the quality of reception in urban as well as rural areas.

Handset Design Affecting Reception


Apple had earlier been forced to admit reception problems with its iPhone 4, because of its antenna design.But according to Steve Jobs, CEO of Apple who has received an email from a reader stating that his new iPhone 4 was facing reception issues while holding it in his hand was informed that those with reception issues need to hold their phone correctly.

Till now the stress has been put exclusively on network operators facing government pressure in improving the capacity and coverage.Westminster sources with information of the research effort of Ofcom indicated that it would shine the spotlight on how modern handset designs could affect reception, for example by utilising the metal cases which could be a hindrance to the signals.

According to Westminster, `some of the manufacturers would not like what is being published by Ofcom; however it is of great important that people have the information available.

Results of the Study Waited


Various sources of UK network operators have stated that the finding would be anticipated eagerly and their own testing has indicated significant differences in the quality of the receptions on popular handsets.

But due to their reliance on commercial relationship with the manufacturers they seem to be unable in sharing the details with consumers without the risk of accusations. One source from the industry has informed that the `handset design as well as the performance could often have a great impact on the quality of service people seem to receive than the network that they use.

Ofcom spokesman informed that the results of the study of the handset would be made available within a weeks’ time and the findings would be based on the recently published maps of network coverage. We need to wait and watch on the latest development with regards to reception issues.