The same chemicals and receptors that control the sensation of pain in the opioid system also play a role in regulating social behavior. The body produces natural opioid substances which are drawn to receptors throughout the nervous system, sending signals through neurons that induce pain relief, pleasure, and more. Low-dose morphine and buprenorphine that attach to the mu (μ) opioid receptors (MORs) could help promote social interactions, which could help people with neuropsychiatric disorders such as autism spectrum disorder (ASD) that affect social interactions.

Childhood maltreatment often continues from one generation to the next, perpetuating the cycle of abuse and depression. In a bid to promote healthier parent-child relationships, researchers from the University of Fukui compared mothers who engaged in maltreatment with those who did not, revealing that childhood trauma increases emotional empathy and depressive symptoms, raising the risk of abusive parenting. Their findings highlight the need for mental health support and parenting programs to help break this cycle.

In a striking demonstration of molecular control, a team of Japanese scientists has harnessed light to reverse the twist in self-assembling molecules. The study led by Professor Shiki Yagai from Chiba University identifies how trace residual aggregates in photo-responsive azobenzene solutions can reverse helical chirality through secondary nucleation. By using precise control of ultraviolet and visible light, the researchers could switch between the rotation of helices, offering a breakthrough for novel materials with tunable properties.

Quasicrystals are intriguing materials with long-range atomic order that lack periodicity. It has been a longstanding question whether antiferromagnetism, while commonly found in regular crystals, is even possible in quasicrystals. In a new study, researchers have finally answered this question, providing the first definitive neutron diffraction evidence of antiferromagnetism in a real icosahedral quasicrystal. This discovery opens a new research area of quasiperiodic antiferromagnets, with potential applications in spintronics.

Scientists from Nagoya University in Japan have developed an innovative cooling device—an ultra-thin loop heat pipe—that significantly improves heat control for electronic components in smartphones and tablets. This breakthrough successfully manages heat levels generated during intensive smartphone usage, potentially enabling the development of even thinner mobile devices capable of running demanding applications without overheating or impeding performance.

The research, published in the journal Applied Thermal Engineering, addresses one of the most critical challenges in mobile device engineering: effectively cooling increasingly powerful components within the confined space of slim mobile devices. The team's solution provides more efficient heat management without increasing device thickness, which could allow manufacturers to push performance boundaries while maintaining or even reducing size. This may lead to next-generation smartphones and tablets that deliver sustained high performance without compromising on design or user experience.

Kyoto, Japan -- The fuzzy and adorable otter has experienced a surge in popularity in recent years. These aquatic mammals are friendly, playful, and make cute cooing sounds, so their social media stardom seems only natural.

Sadly, this enthusiasm for otters has a dark side: they are targets for smuggling. In Japan, their popularity has raised demand for them as pets and as featured species at exotic animal cafés, making Japan one of the most prominent destinations for captive otters with ambiguous origins.

Asian small-clawed otters -- the species most common at Japanese zoos and cafés -- are native to South and Southeast Asia. They are classified as vulnerable by the IUCN Red list and their international trade for commercial purposes is prohibited. Yet they continue to be captured and smuggled into Japan, with Thailand as the main source of this illegal trade.

An Osaka Metropolitan University-led team found that BOR1 is expressed in the tapetal cells of young anthers in unopened buds, showing polar localization toward the locule where microspores develop.