eznews.in
On December 24, NASA's Parker Solar Probe is set to make history by passing within 6.1 million kilometers (3.8 million miles) of the Sun, marking the closest approach ever achieved by a human-made object. Traveling at an astonishing speed of approximately 692,018 kilometers per hour (430,000 miles per hour), the probe will surpass its previous records for both proximity to the Sun and velocity. This milestone follows a gravitational assist from Venus, which occurred on November 6, enabling the probe to reach such unprecedented speeds. While the Parker Solar Probe has already ventured through the Sun's atmosphere and survived a coronal mass ejection, this upcoming encounter will expose it to extreme temperatures and high-energy particles. Scientists eagerly await data from the probe, which will be transmitted after a temporary blackout due to its proximity to the Sun, as they seek to unlock new insights into solar phenomena. 
Published: Dec 23 2024, 11 pmeznews.inWhile Egypt is often associated with pyramids, the largest collection is actually found in Sudan, which boasts between 220 and 255 pyramids, far surpassing Egypt's estimated total of around 118. These structures were built by the ancient Kingdom of Kush, particularly during the reign of the Black Pharaohs, who ruled Egypt in the 8th century BCE. The Kushites, inspired by Egyptian burial practices, constructed their pyramids primarily in the necropolis of Meroë, where approximately 200 pyramids were erected from the 3rd century BCE onwards. Despite their historical significance, many of these monuments have suffered from neglect and damage, particularly due to tomb raiding in the 19th century and ongoing civil conflicts in Sudan. Unlike Egypt's well-preserved sites, the Nubian pyramids remain largely overlooked, highlighting a stark contrast in the preservation and recognition of ancient heritage between the two nations.
Published: Dec 21 2024, 7 pmeznews.inResearchers at Texas A&M University have revealed how chronic alcohol use impairs the brain's learning and adaptability, particularly affecting cholinergic interneurons (CINs) that regulate dopamine signaling essential for motivation and learning. As the holiday season prompts increased alcohol consumption, the study highlights the detrimental effects of alcohol on cognitive functions, including cognitive flexibility, which is crucial for adapting to new situations. The research found that alcohol disrupts the normal "burst-pause" firing pattern of CINs, weakening the pauses necessary for effective learning and unlearning behaviors. This impairment can lead to significant health issues, including Alcohol Use Disorder (AUD), which affects 400 million people globally. The findings suggest that targeting the CIN firing pattern could offer new therapeutic avenues for treating AUD and other cognitive impairments, with implications for conditions related to aging and neurodegenerative diseases. The study is published in *Science Advances*.
Published: Dec 24 2024, 6 pmeznews.inIn a thought-provoking exploration of logic and paradoxes, the article from _CURIOUS_ magazine delves into the complexities of truth and reasoning. While most would agree that the Earth is spherical, the nuances of its shape highlight the limitations of binary thinking, which categorizes statements as strictly true or false. This binary approach can lead to paradoxes, such as the Liar’s Paradox, which challenges our understanding of reality. Philosophical traditions, particularly from Asia, embrace a spectrum of truth, contrasting with Western logic rooted in classical Greek thought. The article also discusses how paradoxes, like Zeno's race between Achilles and a tortoise, have historically prompted deeper scientific inquiry rather than discrediting logic. Ultimately, it suggests that while some paradoxes expose flaws in classical reasoning, they can also reinforce its validity, indicating a need for a more nuanced understanding of truth in both philosophy and science.
Published: Dec 24 2024, 4 pmeznews.inThe concept of aging is often debated, with phrases like "age is just a number" suggesting a more fluid understanding of how we perceive age. While biological markers, such as telomere length, have been linked to aging and health outcomes, their reliability as sole indicators remains contested. Research indicates that both biological and psychological factors play significant roles in how we experience aging. For instance, studies show that individuals with a history of mental illness may exhibit biological signs of aging that exceed their chronological age. Additionally, subjective age—how old one feels—has been associated with longevity, suggesting that a positive outlook can influence lifespan. As the understanding of aging evolves, it becomes clear that both biological processes and psychological well-being are intertwined, highlighting the complexity of aging and the potential for interventions that could enhance quality of life in older age.
Published: Dec 24 2024, 8 ameznews.inRecent research has confirmed that there are four distinct species of giraffe, challenging the long-held belief that they belong to a single species. A study led by the Giraffe Conservation Foundation and various academic partners analyzed 515 giraffe skulls, revealing significant morphological differences that align with genetic findings from 2016. The four species—Masai, northern, reticulated, and southern giraffes—exhibit unique cranial features, particularly in their ossicones, or horn-like structures. With only about 117,000 giraffes remaining in the wild, the researchers emphasize the need for targeted conservation efforts for each species, particularly those with dwindling populations. Dr. Julian Fennessy, co-author of the study, urged the International Union for Conservation of Nature (IUCN) to update giraffe taxonomy to reflect these findings, underscoring the urgency of protecting these iconic animals before it is too late. The study is published in the journal PLOS ONE.
Published: Dec 24 2024, 11 ameznews.inA new app called Labella aims to empower women by enhancing their understanding of their own anatomy through a combination of wearable technology and mobile devices. Research indicates that many women struggle to identify their genitalia, with only half able to locate the vagina on a diagram. This lack of knowledge, compounded by societal taboos surrounding female anatomy, contributes to discomfort and avoidance of discussions about intimate health issues, such as urinary incontinence and cervical screenings. Labella is designed to provide a comfortable educational tool for women, particularly young women, to learn about their bodies and promote self-care. By addressing the stigma and secrecy surrounding female genitalia, the app hopes to improve women's health outcomes, potentially reducing the incidence of cervical cancer, which is on the rise due to missed smear tests.
Published: Dec 24 2024, 11 ameznews.inAlcohol consumption affects not only social interactions but also brain function, with both short- and long-term consequences. In the short term, alcohol alters neurotransmitter balance, impairing speech and motor control, particularly in the cerebellum, leading to slurred speech and unsteady movements. Memory can also be affected, resulting in "blackouts" where individuals fail to form new memories. Long-term excessive drinking can lead to severe conditions such as Wernicke's encephalopathy, caused by thiamine deficiency, and Korsakoff syndrome, characterized by significant memory loss and cognitive decline. While chronic alcohol use can cause permanent brain damage, studies suggest that the brain can recover with abstinence, showing improvements in cognitive function and cortical thickness within months. Experts emphasize that there is no safe level of drinking, and those concerned about their alcohol use should seek professional help.
Published: Dec 24 2024, 11 ameznews.in"Holiday heart syndrome," a term coined nearly 50 years ago, refers to a dangerous condition where excessive alcohol consumption during festive periods leads to cardiac arrhythmias, particularly atrial fibrillation. Blake Smith, a cardiac electrophysiologist at the University of Alabama at Birmingham, notes that binge drinking is often linked to increased hospitalizations around weekends and holidays. Symptoms include sudden palpitations, shortness of breath, dizziness, and chest pain, typically resolving within 12 to 24 hours. However, experiencing this syndrome raises the risk of future episodes, especially with continued heavy drinking. Additionally, a diet high in saturated fats and sodium can also contribute to heart issues during the holiday season. Experts recommend moderation, hydration, and regular physical activity to mitigate risks, advising no more than one drink per day for women and two for men to maintain heart health.
Published: Dec 23 2024, 6 pmeznews.inA new preprint in set theory has introduced the concepts of "exacting" and "ultraexacting" cardinals, challenging existing notions of infinity and potentially reshaping mathematical understanding. These cardinals, which exist in the upper hierarchy of large cardinals and are compatible with the Axiom of Choice, exhibit unusual interactions with previously established infinities, complicating the long-held HOD conjecture that posits an orderly mathematical universe. Co-author Joan Bagaria noted that while the existence of these cardinals cannot be rigorously proven, their implications suggest a more intricate structure of infinity than previously thought. This development raises questions about the nature of mathematical order and chaos, with researchers eager to explore the new territory these findings open up. Despite casting doubt on the HOD conjecture, the discovery is seen as a promising avenue for future research in the realm of large cardinals.
Published: Dec 19 2024, 6 pmeznews.inResearchers have discovered that the velvet ant species _Traumatomutilla bifurca_, found in Brazil, possesses ultrablack markings that absorb nearly all visible and ultraviolet light. This unique coloration is attributed to a specialized structure in the insect's cuticle, which features stacked platelets resembling an accordion. The ultrablack pigment reflects less than 0.5% of light, making it a subject of interest for synthetic material applications in camouflage and solar energy. The study suggests that this coloration may serve multiple purposes, including predator avoidance, thermoregulation, and enhancing mating displays. Additionally, the robust structure of the cuticle may contribute to the velvet ant's renowned toughness and painful sting. The findings, published in the Beilstein Journal of Nanotechnology, highlight the intriguing evolutionary adaptations of these "indestructible insects," prompting further exploration into the diverse patterns of coloration in nature.
Published: Dec 21 2024, 6 amFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
India
World
Economy
Science
Health
Showbiz
Contact