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35 articles from ScienceDaily

Scientists unravel the mysteries of irreversibility in electrochromic thin films

Tungsten oxide, an electrochromic (EC) material with immense potential for technical applications such as in smart windows, has attracted much interest for its energy-saving qualities. However, after multiple cycles, such EC devices exhibit degradation in optical modulation and reversibility owing to lithium-ion trapping. Now, scientists have adopted a quantitative approach to understand the...

Emoji are proposed as a powerful way for patients and doctors to communicate

Emoji could particularly enhance interaction with young children, people with disabilities, and patients who speak other languages, a physician and others argue in a new commentary. The opportunity exists for medical societies and physician committees to proactively shape emoji that best represent their fields, then work with the standards-setting body for emoji to get them approved and put into...

Scientists develop films with tunable elongation and fracture for various uses

Elastic polymers, or 'elastomers,' have various applications, including in car tires and shock absorbers, and their properties are governed by the density of cross-linked polymer chains. However, these properties are usually not modifiable, leading to excessive synthesis requirements. Now, scientists have come up with a novel elastomer film whose elasticity can be 'tuned' in a post-preparation...

New study puts focus on early symptoms of Huntington’s disease

Psychiatric and cognitive symptoms emerge at an early stage in Huntington's disease. However, research so far has mainly focused on movement impairment, a symptom associated with the more advanced stages of the disease. A new study now shows that the emotional brain - the limbic system - is affected earlier in the course of the disease, and should therefore be given more attention in the...

Officials leading hurricane response need ‘risk literacy’

New research shows that the most numerate officials were almost twice as likely as less numerate ones to provide additional evacuation times to their coastal communities during a hurricane. Less numerate ones, on the other hand, gave their communities less advance warning, and when they finally did issue evacuations, over-evacuated tens of thousands more people.

Under loading ceramics self-heal cracks by forming kink-bands

Ceramics are resilient to heat and extreme environments but they are fragile and crack easily. Researchers have discovered a self-healing mechanism within a type of ceramics, called MAX phases. They have shown that these engineered ceramics form natural faults or kink-bands during loading that can not only effectively stop cracks from growing, but can also close and heal them, thereby preventing...

Water-repellent nanomaterial inspired by nature

Researchers have created a new nanomaterial that repels water and can stay dry even when submerged underwater. The discovery could open the door to the development of more efficient water-repellent surfaces, fuel cells and electronic sensors to detect toxins.

Simple creation of a super multi-element catalyst homogeneously containing 14 elements

A joint research group has successfully developed a "nanoporous super multi-element catalyst" that contains 14 elements which are mixed uniformly at the atomic level and used as a catalyst. This catalyst was found to show excellent properties as an electrode material for water electrolysis due to the multi-element superposition effect (cocktail effect). The researchers are expecting it will be...

Chemotherapy drug puts young children with cancer at high risk of hearing loss

A chemotherapy drug known to cause hearing loss in children is more likely to do so the earlier in life children receive it, new UBC research has found. Cisplatin is a life-saving treatment for many children with cancer, but the study shows that the hearing of very young children is impacted early during treatment and is affected to a greater extent than that of older children.

Tea time gets flavor boost from thin film, impure water

Researchers describe how they applied rheology to the seemingly quaint purpose of improving the quality of a cup of black tea. They describe the interfacial phenomenon in a cup left to cool after steeping, when a thin film at the air-water interface can form, and assess the mechanical properties of the film, the formation of which is affected by water hardness, acidity, sugar or milk, tea...