Tech
cool gadgets of the future
The shape of the future (of television)
One of the wildest announcements comes from LG, who showed off a protoype for its rollable display televisions. Why yes, you could lowkey roll up your flat screen like you would a yoga mat. According to CNN, LG showcased a TV that “wraps around a metal cylinder, kind of like a window blind” at the press of a button (or, in one display, it will be able to disappear when not in use), allowing you to store it in a long box. The TVs are said to look like regular TVs, and on display was an 18″ 4K OLED display TV with the tech. It sounds like this tech might be a while before seeing it in our homes at this time; LG is reportedly selling off the tech directly to manufacturers, who will then use it however they see fit in their own electronics. It would make moving that 42″ TV much easier in the future, though.
Smartwatches as medical devices
The Apple Watch might be the most boring thing that Apple has ever made, but the grand plan for it, and smartwatches, in general, isn’t boring at all. More than anything, these glorified messaging machines might save our lives one day.
2017 was the year that the Apple Watch got good, and it was also the year that the FDA approved the first medical device accessory. The Kardiaband is an add-on that can detect an abnormal heart rate. What’s more, a UCSF study found that Apple’s built-in heart monitor could detect an abnormal heart rate with 97 percent accuracy when an AI-based algorithm called DeepHeart was used in conjunction with the device. The same team behind that study later found that the Apple Watch-DeepHeart combo could detect sleep apnea with 90 percent accuracy, and hypertension with 82 percent accuracy. Both of those conditions are quite a chore to detect with the current methods.
It’s still early in the quest to make a smartwatch a magical medical wizard that brings a silver bullet to preventative medicine, but we’re getting there.
Don’t get too excited: Privacy issues abound, and we’re going to have to work them out before this technology matures, not after.
Allergy detection gadgets
Allergy Amulet is a portable device that can detect food allergens or certain ingredients. It also doubles as a cute piece of jewelery when hung on a necklace.
To use the device, you’ll need to insert a disposable test trip into any suspicious food and pop it in the reader. After a few seconds, the reader will turn red or green to tell you if the food contains the target allergen or ingredient. It can test for milk, soy, dairy, shellfish, finned fish, wheat, eggs and nuts.
Each strip costs $1 to $3 and the reader will cost between $100 to $250. Pre-sales begin this fall and the device will be available in 2019.
Another startup called Nima also showed off pocket-sized devices that test a food sample for the presence of peanut proteins or gluten.Nima’s sensors take about three minutes to test the sample, but the results can be quicker if there is more of an allergen present.
The Nima Gluten Sensor is available now for $289, while the Nima Peanut Sensor is available for pre-order at a discount of $229.
Rollable TV
Prosthetics that learn how you move
BrainRobotics wants to build a new kind of prosthetic limb.
The device uses a band of eight electrodes to detect the electrical signals caused by contracting muscles — called electromyography — when the wearer moves. It collects that information and uses it in an algorithm that learns your habits over time.
When the wearer’s muscles replicate the signal, the prosthetic will move accordingly.
But the real innovation of the device could be its price. It will cost $2,000 to $4,000, less than similar designs. And it will have a modular design that allows the wearer to replace any individual broken pieces instead of having to repair the entire limb.
The year-old company was started in Boston by MIT and Harvard graduates, and was originally part of the Harvard Innovation Lab. The prosthetic is still in the testing phases with with early users like Mincheng Ni (pictured). BrainRobotics hopes to have it in mass production by the end of 2018.
Food gadgets
How long has that block of cheese been in your fridge? You could eat it and find out, or you could try some of these trackers that work with Alexa.
Chicago-based startup Ovie Smarterware is developing food tracking tech. After you tell Amazon’s voice assistant technology what you’re putting in your fridge, it’ll track how many days it can stay fresh.
But you’ll need to strap a little tracker to the food item, and it will turn colors when the cheddar is no longer ideal for eating. Cost: $59 for a set of three.
Self-driving travel bag
China’s ForwardX Robotics demonstrated a four-wheeled travel bag that automatically follows its user around the airport. The smart bag uses cameras and AI to avoid crashes. The device can message the owner if it gets too far away or when the battery power gets low.
Complete List of HTTP Status Codes
HTTP status codes or browser error codes or internet error codes are standard response codes given by web site servers on the Internet. It’s an message from the server to letting you know how things went when you requested to view a web page.
Whenever you send a request to the server, you always get a status code associated with the response.
The codes help identify the cause of the problem when a web page or other resource does not load properly.
Classes of HTTP Status Codes
Status codes are divided into 5 classes
- 100’s: Informational codes indicating that everything so far is OK and the client may continue to the request.
- 200’s: This class represent the success of the request.
- 300’s: This class represent the redirection of the resources.
- 400’s: Client error codes indicating that there was a problem with the request.
- 500’s: Server error codes indicating that the request was accepted, but that an error on the server and not able to serve the request for some reason.
List of HTTP Status Codes
Information responses
100 Continue
The initial part of a request has been received and has not yet been rejected by the server. The server intends to send a final response after the request has been fully received and acted upon.
101 Switching Protocol
The server understands and is willing to comply with the client’s request, via the Upgrade header field1, for a change in the application protocol being used on this connection.
Successful responses
200 OK
The payload sent in a 200 response depends on the request method. For the methods defined by this specification, the intended meaning of the payload can be summarized as:
- GET: The resource has been fetched and is transmitted in the message body.
- HEAD: The entity headers are in the message body.
- POST: The resource describing the result of the action is transmitted in the message body.
- TRACE: The message body contains the request message as received by the server
201 Created
The request has been fulfilled and has resulted in one or more new resources being created. The 201 response payload typically describes and links to the resource(s) created.
202 Accepted
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.
203 Non-Authoritative Information
The request was successful but the enclosed payload has been modified from that of the origin server’s 200 OK response by a transforming proxy.
This status code allows the proxy to notify recipients when a transformation has been applied since that knowledge might impact later decisions regarding the content.
204 No Content
The server has successfully fulfilled the request and that there is no additional content to send in the response payload body.
For example, if a 204 status code is received in response to a PUT request and the response contains an ETag header field, then the PUT was successful and the ETag field-value contains the entity-tag for the new representation of that target resource.
205 Reset Content
The server has fulfilled the request and desires that the user agent reset the “document view”, which caused the request to be sent, to its original state as received from the origin server.
206 Partial Content
This response code is used because of range header sent by the client to separate download into multiple streams
Redirection messages
300 Multiple Choice
The target resource has more than one representation, each with its own more specific identifier, and information about the alternatives is being provided so that the user (or user agent) can select a preferred representation by redirecting its request to one or more of those identifiers.
301 Moved Permanently
The target resource has been assigned a new permanent URI and any future references to this resource ought to use one of the enclosed URIs.
A 301 response is cacheable by default i.e. unless otherwise indicated by the method definition or explicit cache controls
302 Found
This response code means that URI of the requested resource has been changed temporarily. New changes in the URI might be made in the future. Therefore, this same URI should be used by the client in future requests.
303 See Other
Server sent this response to directing the client to get requested resource to another URI with a GET request.
304 Not Modified
A conditional GET or HEAD request has been received and would have resulted in a 200 OK response if it were not for the fact that the condition evaluated to false.
305 Use Proxy
This means requested response is now deprecated and must be accessed by a proxy. This response code is not largely supported because of security reasons.
306 unused
This response code is no longer used, it is just reserved currently. It was used in a previous version of the HTTP 1.1 specification.
307 Temporary Redirect
The target resource resides temporarily under a different URI and the user agent MUST NOT change the request method if it performs an automatic redirection to that URI.
This has the same semantic than the 302 Found HTTP response code, with the exception that the user agent must not change the HTTP method used: if a POST was used in the first request, a POST must be used in the second request.
308 Permanent Redirect
This means that the resource is now permanently located at another URI, specified by the Location: HTTP Response header.
This has the same semantics as the 301 Moved Permanently HTTP response code, with the exception that the user agent must not change the HTTP method used: if a POST was used in the first request, a POST must be used in the second request.
Client error responses
400 Bad Request
The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
401 Unauthorized
Authentication is needed to get requested response. This is similar to 403, but in this case, authentication is possible.
402 Payment Required
This response code is reserved for future use. Initial aim for creating this code was using it for digital payment systems however this is not used currently.
403 Forbidden
The server understood the request but refuses to authorize it. It means the client does not have access rights to the content so the server is rejecting to give a proper response.
404 Not Found
The server can not find requested resource. This response code probably is most famous one due to its frequency to occur in the web.
405 Method Not Allowed
The method received in the request-line is known by the origin server but not supported by the target resource.
406 Not Acceptable
This response is sent when the web server, after performing server-driven content negotiation, doesn’t find any content following the criteria given by the user agent.
407 Proxy Authentication Required
Similar to 401 Unauthorized, but it indicates that the client needs to authenticate itself in order to use a proxy.
408 Request Timeout
The server did not receive a complete request message within the time that it was prepared to wait.
409 Conflict
The request could not be completed due to a conflict with the current state of the target resource. This code is used in situations where the user might be able to resolve the conflict and resubmit the request.
410 Gone
This response would be sent when requested content has been removed from the server and that this condition is likely to be permanent. If the origin server does not know, or has no facility to determine, whether or not the condition is permanent, the status code 404 Not Found ought to be used instead.
411 Length Required
Server rejected the request because the Content-Length header field is not defined and the server requires it.
412 Precondition Failed
This response code allows the client to place preconditions on the current resource state (its current representations and metadata) and, thus, prevent the request method from being applied if the target resource is in an unexpected state.
413 Payload Too Large
The server is refusing to process a request because the request payload is larger than the server is willing or able to process.
414 URI Too Long
If the server refusing the request because the URI requested by the client is longer than the server is willing to interpret.
415 Unsupported Media Type
The media format of the requested data is not supported by the server, so the server is rejecting the request.
416 Requested Range Not Satisfiable
The range specified by the Range header field in the request can’t be fulfilled; it’s possible that the range is outside the size of the target URI’s data.
417 Expectation Failed
This response code means the expectation indicated by the Expect request header field can’t be met by the server.
421 Misdirected Request
The request was directed at a server that is not able to produce a response. This can be sent by a server that is not configured to produce responses for the combination of scheme and authority that are included in the request URI.
426 Upgrade Required
The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol.
428 Precondition Required
The origin server requires the request to be conditional.
429 Too Many Requests
This code is generated when the client sent too many request in a given amount of time.
431 Request Header Fields Too Large
The server is unwilling to process the request because its header fields are too large. The request MAY be resubmitted after reducing the size of the request header fields.
451 Unavailable For Legal Reasons
The user requests an illegal resource, such as a web page censored by a government.
Server error responses
500 Internal Server Error
The server encountered an unexpected condition when it doesn’t know how to handle and prevented it from fulfilling the request.
501 Not Implemented
The server does not support the functionality required to fulfil the request.
502 Bad Gateway
This error response means that the server, while working as a gateway to get a response needed to handle the request, got an invalid response.
503 Service Unavailable
The server is currently unable to handle the request due to a temporary overload or scheduled maintenance, which will likely be alleviated after some delay.
504 Gateway Timeout
The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server it needed to access in order to complete the request.
505 HTTP Version Not Supported
The server does not support or refuses to support, the major version of HTTP that was used in the request message.
506 Variant Also Negotiates
The server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself and is therefore not a proper end point in the negotiation process.
507 Insufficient Storage
The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request. This condition is considered to be temporary.
511 Network Authentication Required
The 511 status code indicates that the client needs to authenticate to gain network access.
This could be the end of needle injections
This could be the end of needle injections
This injector can administer medication entirely without needles
This could be the end of needle injections
Posted by Alex Klokus on Wednesday, July 12, 2017
Artificial Kidney
This New Artificial Kidney Eliminates The Need For Kidney Dialysis
Kidney failure has been a major problem faced by the patients in the recent years and the pain they go through during this period cannot be described in words. There have been several cases over the years where people have lost their lives owing to kidney failure, some of which includes the big names in the world. The biggest headache for the doctors is not only to find a match but also to find a donor who is willing to donate his/her kidney to the patient. The National Kidney Foundation estimates that over 1 lakh patients are waiting for the kidney donors to help them and this list increases by over 3000 names every year.
It is sad to note that an average patient needs to wait for over 3.6 years for a kidney transplant. The patient has to go through dialysis during the period between kidney failure and kidney transplantation. The statistics reveal how deadly the problem actually is, it is seen that only one in three patients are able to survive past the 5-year mark without going through transplantation. Though the situation seems to be really dangerous for the patients to be in, all of it could change if the scientists are successful in developing world’s first artificial kidney kit.
The scientists are developing a bio-hybrid kidney which will make use of the living kidney cells along with specialized microchips which will take assistance from the human heart to filter out waste from the blood-stream. To help the patients go through transplantation without having to wait for the donor or to wait for a match William Fissell from Vanderbilt and Shuvo Roy have started the kidney project. These two scientists who are currently serving at the University of California, San Francisco say that the artificial kidney can put an end to the problem faced by people all over the world and this could turn out to be one of the important devices in the world.
Fissell explains that the artificial kidney is developed after a lot of thought and they have tried to emulate Mother Nature’s 60 million year’s research and development. He claims that the artificial kidney can easily distinguish between the waste chemicals and nutrients which are important to be supplied all over the body. He is of the opinion that the kidney developed in the research lab can be inserted into the human body through a simple surgery and they have also found out that the artificial device works efficiently once it has been inserted in the body.
The artificial kidney developed in the laboratory has 15 microchips stacked one after the other which acts as filters just like an original kidney. The device will have living renal cells which will in time grow around the device and mimic an original kidney. The team of engineers and scientists are currently working diligently to make sure the device will work just like a real kidney. They are also testing every part of the device to verify that the blood runs through the device without any hindrance.
The happy news is that everything is going according to plans so far and there has been no rejection too. Though the human trials are yet to be started, the research shows that this device really could bring a positive change in the lives of affected people. The device has given promising results in the early stage of research and it is hoped that one day this device could eliminate the need for dialysis among the patients. Do share this amazing news with your friends all over the world.
Source: https://www.healthline.com/health-news/implantable-artificial-kidney-moves-closer-to-reality#4
- ← Previous
- 1
- 2