An international research team led by Prof. Dr. Sedat Nizamoğlu from the Department of Electrical and Electronics Engineering at Koç University has developed a next-generation, safe, and wireless stimulation technology for retinal degenerative diseases that cause vision loss.
The study is published in Science Advances.
People’s perceptions and their interpretation of the world are known to often be influenced by their expectations and past experiences. One well-established example of this is serial dependence, a bias that prompts humans to make judgments about things that they are perceiving based on other stimuli that they observed shortly beforehand.
Researchers at École Polytechnique Fédérale de Lausanne, University of Lausanne, CHUV, The Sense Innovation and Research Center, and University of Bergen analyzed the findings of several past studies to better understand how this effect influences decision-making, particularly in situations where humans need to interpret what they are perceiving.
Their findings, published in Nature Human Behavior, suggest that serial dependence typically reduces the accuracy of people’s perceptions, which contradicts previous theories and hypotheses.
Catalysts are the invisible engines of hydrogen energy, governing both hydrogen production and electricity generation. Conventional catalysts are typically fabricated in granular particle form, which is easy to synthesize but suffers from inefficient use of precious metals and limited durability.
KAIST researchers have introduced a paper-thin sheet architecture in place of granules, demonstrating that a structural innovation—rather than new materials—can simultaneously reduce precious-metal usage while enhancing both hydrogen production and fuel-cell performance.
Professor EunAe Cho of the Department of Materials Science and Engineering has developed a new catalyst architecture that dramatically reduces the amount of expensive precious metals required while simultaneously improving hydrogen production and fuel-cell performance.
Researchers at Kyushu University have shown that careful engineering of materials interfaces can unlock new applications for nanoscale magnetic spins, overcoming the limits of conventional electronics. Their findings, published in APL Materials, open up a promising path for tackling a key challenge in the field and ushering in a new era of next-generation information devices.
The study centers around magnetic skyrmions—swirling, nanoscale magnetic structures that behave like particles. Skyrmions possess three key features that make them useful as data carriers in information devices: nanoscale size for high capacity, compatibility with high-speed operations in the GHz range, and the ability to be moved around with very low electrical currents.
A skyrmion-based device could, in theory, surpass modern electronics in applications such as large-scale AI computing, Internet of Things (IoT), and other big data applications.
Beyond their sparkle, diamonds have hidden talents. They shed heat better than any material, tolerate extreme temperatures and radiation, and handle high voltages while wasting almost no electricity—ideal traits for compact, high-power devices. These properties make diamond-based electronics promising for applications in the power grid, industrial power switches, and places with high radiation, such as space or nuclear reactors.
Diamond’s ability to quickly carry heat away from electronic components allows devices to handle large currents and voltages without overheating. This means smaller devices can be used to switch to high power in the grid or in industrial settings. Diamond’s natural resistance to radiation and extreme temperatures could enable electronics to work reliably in places where traditional silicon devices fail.
A research team affiliated with UNIST has reported a novel synthesis strategy that enables the direct intercalation of a wide range of metal cations into the interlayer spaces of layered titanate (LT) structures. This approach opens new possibilities for designing highly tailored catalysts and energy storage materials for specific industrial applications.
Professors Seungho Cho (Department of Materials Science and Engineering), Kwangjin An (School of Energy and Chemical Engineering), and Hu Young Jeong (Graduate School of Semiconductor Materials and Devices Engineering) at UNIST, in collaboration with Professor Jeong Woo Han from Seoul National University, report this advancement in Advanced Materials.
Quantum key distribution (QKD) is a next generation method for protecting digital communications by drawing on the fundamental behavior of quantum particles. Instead of relying on mathematical complexity alone, QKD allows two users to establish a shared secret key in a way that is inherently resistant to interception, even if the communication channel itself is not private.
When an unauthorized observer attempts to extract information, the quantum states carrying the data are unavoidably altered, creating telltale disturbances that signal a potential security breach.
The real-world performance of QKD systems, however, depends on precise control of the physical link between sender and receiver. One of the most influential factors is pointing error, which occurs when the transmitted beam does not perfectly align with the receiving device.
