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    Researchers in the US have developed a technological aid: a chest-mounted video camera — linked to a processing unit involving a computer-vision algorithm — and a pair of vibrating wristbands. When the system detects a hazard that the wearer is set to collide with, the wristband on the same side as the hazard vibrates. If the obstacle is straight ahead, both wristbands vibrate. The researchers said the device was not designed to replace canes or guide dogs but rather to provide additional benefits, including helping wearers to avoid hazards above ground level.

     Writing in the journal Jama Ophthalmology, the researchers reported that a study of 368 hours of walking video data from 31 blind or partially sighted participants indicates that the approach could be helpful.

    After a period of training, each participant used the system for about four weeks, in addition to their cane or guide dog. During this time the system switched unannounced between “active” mode — during which the wristbands vibrated when a hazard was detected — and “silent” mode, where they did not. The researchers then analysed the data to see whether the rate of contacts between the user’s body or cane and the objects identified by the system differed between the two scenarios.

    When they looked at a random sample of collision warnings for each participant, they found that such contacts were reduced by 37% when the system was in active mode, taking into account factors including participants’ level of visual acuity.

(Nicola Davis. www.theguardian.com, 22.07.2021. Adaptado.)

TIME 100 ICONS
Malala Yousafzai
By Mezon Almellehan
April 16, 2015

Champion of education

    I’M 16 years old and from Dara’a in Syria. I fled to Jordan with my Family two years ago.

    Spending time with Malala Yousafzai made me stronger. I didn’t know her before meeting her in Za’atari camp last year, but I understand she suffered, and yet continues to fight for what she believes in – for rights of children and for their education. She is an inspiration for me.

    When it comes to continuing our education as refugees, I am on the front lines with my friends, speaking to other girls throughout the camp on the importance of going to school. My mother and father are always encouraging me. I saw this in Malala too, and her close relationship with her mother and father.

    I’ve always loved learning and education, but since I fled with my Family, these views have grown stronger. I have seen too much wrong to not use my voice. Malala has shown that education is crucial for laying a foundation for girls and boys to have secure lives.

    I know no matter what I go through today, it will make me a stronger person for tomorrow. Rather than giving up, my friends and I will continue to think positively and try to make our community better. Girls need to learn to take care of themselves, because if they don’t, nobody will. Our lives are completely diferente now – we’ve gone from living in homes to surviving in tents in refugees camps. Education is the only way to regain our spirit and control over our lives.

    I was so honored to be in Oslo to watch Malala be awarded the Nobel Peace Prize. To see a Young woman recognized with such an award made me realize that yes, I can make a difference, and I have to continue to fight for what I believe in – that all girls and boys can bring change to our world.

Almellehan is an education activist and student. (fonte: http://time.com/3822637/malala-yousafzi-2015-time-100/ acessado dia 03/11/15 17:44)