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Categories: Mathematics: Puzzles, Mathematics: Statistics

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Mathematics: Statistics
Published

New software platform advances understanding of the surface finish of manufactured components      (via sciencedaily.com) 

The contact.engineering platform enables users to create a digital twin of a surface and thus to help predict, for example, how quickly it wears out, how well it conducts heat, or how well it adheres to other materials.

Mathematics: Statistics
Published

Healthcare researchers must be wary of misusing AI      (via sciencedaily.com) 

A commentary advocates the proper application of artificial intelligence in healthcare and warns of the dangers when machine learning algorithms are misused.

Mathematics: Statistics
Published

New method to identify symmetries in data using Bayesian statistics      (via sciencedaily.com) 

Scientists have developed a method to identify symmetries in multi-dimensional data using Bayesian statistical techniques. Bayesian statistics has been in the spotlight in recent years due to improvements in computer performance and its potential applications in artificial intelligence. However, this statistical approach requires complex calculations of integrals, which are often considered approximations only. In their new study, the research team successfully derived new exact integral formulas. Their findings contribute to improving the accuracy of methods to identify data symmetries, possibly extending their applications to wider areas of interest, such as genetic analysis.

Mathematics: Puzzles
Published

Gamers can have their cake and eat it too      (via sciencedaily.com) 

New research from Japan shows that multiple cognitive abilities may be empirically measured from a complex game experience depending on the game's design.

Mathematics: General Mathematics: Puzzles
Published

The way you talk to your child about math matters      (via sciencedaily.com) 

'You're so smart!' -- This encouraging response may actually do more harm than good to children's math performance, according to a new study. The study found that encouraging children with responses related to their personal traits or innate abilities may dampen their math motivation and achievement over time.

Mathematics: Puzzles
Published

Reasons behind gamer rage in children are complex -- and children are good at naming them      (via sciencedaily.com) 

Children's outbursts of rage while playing digital games are causing both concern and public debate around the topic. Taking a novel approach to gamer rage, a new study examines the topic from a child's perspective, finding complex reasons for gamer rage in children.

Computer Science: Encryption Mathematics: Puzzles
Published

A key role for quantum entanglement      (via sciencedaily.com) 

A method known as quantum key distribution has long held the promise of communication security unattainable in conventional cryptography. An international team of scientists has now demonstrated experimentally, for the first time, an approach to quantum key distribution that is based on high-quality quantum entanglement -- offering much broader security guarantees than previous schemes.

Mathematics: Statistics
Published

Idea of ice age 'species pump' in the Philippines boosted by new way of drawing evolutionary trees      (via sciencedaily.com) 

A groundbreaking Bayesian method and new statistical analyses of genomic data from geckos in the Philippines shows that during the ice ages, the timing of gecko diversification gives strong statistical support for the first time to the Pleistocene aggregate island complex (PAIC) model of diversification, or 'species pump.'

Computer Science: Encryption Mathematics: Puzzles
Published

'Pulling back the curtain' to reveal a molecular key to The Wizard of Oz      (via sciencedaily.com) 

Many people and companies worry about sensitive data getting hacked, so encrypting files with digital keys has become more commonplace. Now, researchers have developed a durable molecular encryption key from sequence-defined polymers that are built and deconstructed in a sequential way. They hid their molecular key in the ink of a letter, which was mailed and then used to decrypt a file with text from a classic story.

Mathematics: Statistics
Published

Topology and machine learning reveal hidden relationship in amorphous silicon      (via sciencedaily.com) 

Fine-tuning the thermal conductivity of amorphous silicon used in technologies such as solar cells and image sensors should become much easier thanks to the computational topology and machine-learning-assisted discovery of the relationship between nano-scale structures and physical properties.

Mathematics: General Mathematics: Puzzles
Published

The numbers don't lie: Australia is failing at maths and we need to find a new formula to arrest the decline      (via sciencedaily.com) 

Australia has suffered a significant drop in teenage maths proficiency in the past 20 years -- sliding from 11th in the OECD rankings to 29th place out of 38 countries, prompting widespread debate over potential curriculum changes. One researcher says hand gestures could stop the slide.

Mathematics: Statistics
Published

When quan­tum par­ti­cles fly like bees      (via sciencedaily.com) 

A quantum system with only 51 charged atoms can take on more than two quadrillion different states. Calculating the system's behavior is child's play for a quantum simulator. But verifying the result is almost impossible, even with today's supercomputers. A research team has now shown how these systems can be verified using equations formulated in the 18th century.

Mathematics: Puzzles
Published

Video games can help boost children's intelligence      (via sciencedaily.com) 

Scientists have studied how the screen habits of US children correlates with how their cognitive abilities develop over time. They found that the children who spent an above-average time playing video games increased their intelligence more than the average, while TV watching or social media had neither a positive nor a negative effect.

Mathematics: Statistics
Published

One particle on two paths: Quantum physics is right      (via sciencedaily.com) 

The famous double slit experiment shows that particles can travel on two paths at the same time -- but only by looking at a lot of particles and analysing the results statistically. Now a two-path-interference experiment has been designed that only has to measure one specific particle to prove that it travelled on two paths.

Computer Science: Encryption Mathematics: Puzzles
Published

Scientific advance leads to a new tool in the fight against hackers      (via sciencedaily.com) 

A new form of security identification could soon see the light of day and help us protect our data from hackers and cybercriminals. Quantum mathematicians have solved a mathematical riddle that allows for a person's geographical location to be used as a personal ID that is secure against even the most advanced cyber attacks.

Geoscience: Environmental Issues Mathematics: Statistics
Published

Exposure assessment for Deepwater Horizon oil spill: Health outcomes      (via sciencedaily.com) 

Mathematicians have developed statistical methods that lay the framework for the crucial first step of determining whether there are any linkages between exposures and health outcomes from the 2010 Deepwater Horizon oil spill, which is considered the largest marine oil spill in the history of the U.S.

Mathematics: Statistics
Published

Machine learning model could better measure baseball players' performance      (via sciencedaily.com) 

Researchers have developed a machine learning model that could better measure baseball players' and teams' short- and long-term performance, compared to existing statistical analysis methods for the sport. Drawing on recent advances in natural language processing and computer vision, their approach would completely change, and could enhance, the way the state of a game and a player's impact on the game is measured.

Mathematics: Statistics
Published

Study shows gaps in how STEM organizations collect demographic information      (via sciencedaily.com) 

Professional organizations in science, technology, engineering and mathematics (STEM) fields could more effectively collect data on underrepresented groups in their fields, according to a new survey. With more robust information, STEM organizations could better target efforts to recruit and retain a more diverse membership.

Mathematics: Statistics
Published

Lottery luck in the light of physics: Researchers present theory on the dynamics of many-particle systems      (via sciencedaily.com) 

Power functional theory is a new approach that makes it possible to describe precisely the dynamics of many-particle systems over time.

Mathematics: Statistics
Published

Speaking from the heart: Could your voice reveal your heart health?      (via sciencedaily.com) 

An artificial intelligence (AI)-based computer algorithm accurately predicted a person's likelihood of suffering heart problems related to clogged arteries based on voice recordings alone.