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Archive for the ‘mobile phones’ category: Page 65

Dec 6, 2022

Advanced “Lab on a Chip” — Scientists Have Created a Powerful, Ultra-Tiny Spectrometer

Posted by in categories: biotech/medical, mobile phones, robotics/AI, security

Researchers in the field of optical spectrometry have created a better instrument for measuring light. This advancement could improve everything from smartphone cameras to environmental monitoring.

The research, led by Finland’s Aalto University, developed a powerful, incredibly small spectrometer that fits on a microchip and is run by artificial intelligence. Their research was recently published in the journal Science.

The study used a relatively new class of super-thin materials known as two-dimensional semiconductors, and the result is a proof of concept for a spectrometer that could be easily integrated into a number of technologies such as quality inspection platforms, security sensors, biomedical analyzers, and space telescopes.

Dec 5, 2022

Reduced brain activity and functional connectivity during creative idea generation in individuals with smartphone addiction

Posted by in categories: biotech/medical, mobile phones, neuroscience

The use of smartphones has become an increasingly popular behaviour in people’s lives. However, an increased number of people find it difficult to minimise the use of smartphones, leading to the emergence of smartphone-addictive behaviours (Panova and Carbonell, 2018; Busch and McCarthy, 2021). In particular, the rapid spread of coronavirus disease 2019 around the world has led to a dramatic increase in the number of smartphone addicts due to home isolation (Caponnetto et al., 2021). Smartphone addiction is an emerging behavioural addiction, which refers to excessive dependence on and abuse of smartphones by individuals (Kwon et al., 2013; Billieux et al., 2015). Notably, smartphone addiction has been reported to have negative impacts on individuals’ cognitive functions, such as attention (Choi et al., 2021; Lee et al., 2021), perception (Dong et al., 2014) and memory (Hartanto and Yang, 2016; Tanil et al., 2020). Nevertheless, the influence of smartphone addiction on individuals’ advanced cognition is still unclear. Smartphone addiction may impair flexible cognitive processes (Dong et al., 2014), such as those that contribute to creative cognition. However, to our knowledge, the influence of smartphone addiction on creative cognition has not been explored.

Given the negative effects and high incidence of smartphone addiction (Zou et al., 2021), it is essential to uncover the underlying mechanisms, especially the neural mechanisms, by which smartphone addiction affects creative cognition. Creative cognition is defined as the ability to generate original and useful products (Sternberg and Lubart, 1999). It is a core cognitive element that allows for daily flexible problem solving and the generation of new ideas. The main components of creative cognition are (i) overcoming the semantic constraints of existing knowledge, which involves goal-directed behaviour through cognitive control, and (ii) building unusual associations to expand the existing structure of knowledge, which involves the spontaneous and unconstrained generation of novel associations (Ward et al., 1997; Abraham, 2014; Marron and Faust, 2019).

According to the problematic mobile phone use model (Billieux et al., 2015), the lack of planning or reduced cognitive control is a crucial contributor to smartphone addiction behaviour. Previous studies have also indicated that impaired cognitive control is a prominent feature of smartphone addicts, characterised by an inability to focus on task-related information and an inability to suppress dominant, automatic responses (Van Deursen et al., 2015; Li et al., 2021). In fact, previous studies have emphasised the contribution of cognitive control to the generation of creative ideas (Beaty et al., 2016; Benedek and Fink, 2019). During creative idea generation, known ideas are often initially retrieved, which acts as a source of interference allowing the retrieval process to focus on familiar and dominant ideas (Abraham, 2014). In this context, cognitive control is needed to drive the retrieval process of novel and remote information.

Dec 5, 2022

Scientists create AI neural net that can unlock digital fingerprint-secured devices

Posted by in categories: information science, mobile phones, privacy, robotics/AI, security

Computer scientists at New York University and Michigan State University have trained an artificial neural network to create fake digital fingerprints that can bypass locks on cell phones. The fakes are called “DeepMasterPrints”, and they present a significant security flaw for any device relying on this type of biometric data authentication. After exploiting the weaknesses inherent in the ergonomic needs of cellular devices, DeepMasterPrints were able to imitate over 70% of the fingerprints in a testing database.

An artificial neural network is a type of artificial intelligence comprising computer algorithms modeled after the human brain’s ability to recognize patterns. The DeepMasterPrints system was trained to analyze sets of fingerprint images and generate a new image based on the features that occurred most frequently. This “skeleton key” could then be used to exploit the way cell phones authenticate user fingerprints.

In cell phones, the necessarily small size of fingerprint readers creates a weakness in the way they verify a print. In general, phone sensors only capture a partial image of a print when a user is attempting to unlock the device, and that piece is then compared to the phone’s authorized print image database. Since a partial print means there are fewer characteristics to distinguish it than a full print, a DeepMasterPrint needs to match fewer features to imitate a fingerprint. It’s worth noting that the concept of exploiting this flaw is not unique to this particular study; however, generating unique images rather than using actual or synthesized images is a new development.

Dec 4, 2022

An architecture that gives users full control of their smartphones

Posted by in categories: computing, mobile phones, surveillance

In recent years, many smartphone users have become concerned about the privacy of their data and the extent to which companies might have access to this data. As things stand today, the applications that users can run on their phone and what they can do with these applications is determined by a few big tech companies.

Researchers at ETH Zurich have recently set out on a quest to change this current trend, through the development of a new smartphone architecture called TEEtime. This architecture, introduced in a paper pre-published on arXiv, allows users to flexibly choose what resources on their smartphone they will dedicate to legacy operating systems, such as Android or iOS, and which they wish to keep for their own and data.

Continue reading “An architecture that gives users full control of their smartphones” »

Dec 4, 2022

Man Rescued in Alaska After Activating iPhone 14 Emergency SOS Feature

Posted by in category: mobile phones

A stranded man in Alaska was rescued after using Apple’s new Emergency SOS satellite feature to contact emergency services.

According to Alaska State Troopers (Opens in a new window) on Dec. 1, at 2 a.m. (AST), rescue services were notified that an adult male traveling via snowmachine from the remote town of Noorvik to Kotzebue had activated an Emergency SOS via satellite on his iPhone after becoming stranded. The area did not have Wi-Fi or cellular coverage.

The Apple Emergency Response Center provided Troopers and the Northwest Arctic Borough Search and Rescue Coordinator with the GPS coordinates of the stranded man, and four volunteer searchers located and transported him to Kotzebue. No injuries were reported.

Dec 1, 2022

3 Ways You Use Quantum Physics Every Day

Posted by in categories: mobile phones, quantum physics

From your smartphone to just a regular clock, quantum physics may be weird, but it’s also practical.

Nov 30, 2022

20 Times More Intense: New Material Will Help Improve Phone and Television Displays

Posted by in categories: chemistry, computing, mobile phones, physics

Scientists have created, synthesized, and analyzed a new class of fluorophores, which are luminous chemical compounds. These are the new bullet systems based on cyanopyrazine. According to research, the inclusion of cyanogroup compounds in fluorophores considerably boosts the efficiency of organic light-emitting diodes (OLED). This indicates they can be utilized to develop new materials to improve the brightness of smartphone, computer, and television screens. The researchers’ findings were recently published in the journal Dyes and Pigments.

The research was led by Egor Verbitskiy, the director of the Postovsky Institute of Organic Synthesis Ural Branch of RAS and a member of the Laboratory of Medical Chemistry and Advanced Organic Materials at the Ural Federal University. He states that physicists were aware that introducing cyanogroups to fluorophores can enhance the OLEDs’ properties and overall efficiency.

Nov 29, 2022

High-performance and compact vibration energy harvester created for self-charging wearable devices

Posted by in categories: climatology, mobile phones, physics, wearables

Walking can boost not only your own energy but also, potentially, the energy of your wearable electronic devices. Osaka Metropolitan University scientists made a significant advance toward self-charging wearable devices with their invention of a dynamic magnifier-enhanced piezoelectric vibration energy harvester that can amplify power generated from impulsive vibrations, such as from a human walking, by about 90 times, while remaining as small as currently developed energy harvesters. The results were published in Applied Physics Letters.

These days, people carry multiple such as smartphones, and wearable devices are expected to become increasingly widespread in the near future. The resulting demand for more efficient recharging of these devices has increased the attention paid to energy harvesting, a technology that converts energy such as heat and light into electricity that can small devices. One form of energy harvesting called vibration energy harvesting is deemed highly practical given that it can transform the from vibration into electricity and is not affected by weather or climate.

A research team led by Associate Professor Takeshi Yoshimura from the Graduate School of Engineering at Osaka Metropolitan University has developed a microelectromechanical system (MEMS) piezoelectric vibration energy harvester that is only approximately 2 cm in diameter with a U-shaped metal component called a dynamic magnifier. Compared with conventional harvesters, the new harvester allows for an increase of about 90 times in the power converted from impulsive vibrations, which can be generated by the human walking motion.

Nov 29, 2022

Elon Musk picks up a fight with Apple- but why?

Posted by in categories: Elon Musk, mobile phones

The anti-Apple crowd has the backing of the world’s richest person.

Elon Musk might have just propped himself as the new face of the anti-Apple group working to counter the iPhone maker’s monopoly in the app market. In a tweet, Musk accused Apple of threatening to withhold Twitter from the App Store without giving any specific reason and called it censorship.

Since his Twitter acquisition, Elon Musk has primarily been in the news for the things that have happened inside the social media company, whether it is firing half of the workforce or asking the remaining crew to commit more hours of work at a higher intensity to build a new version of the social media company.

Nov 29, 2022

Whole Foods shoppers can now pay with palm scans

Posted by in categories: food, mobile phones, privacy

Amazon is bringing its palm print-scanning biometric payment technology to several Whole Foods locations.

Biometrics: Every person has measurable physical characteristics that are unique to them — and because these attributes are unique and measurable, they can be used to verify our identity.

Biometric technologies — like the one that probably unlocks your phone — automate this verification, analyzing a face, fingerprint, or palm for distinct identifiers linked to a specific person.

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