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  • Belgian Grand Prix Sprint pole margin “not a big surprise” as Max Verstappen and Red Bull focus on “our own race” at Spa

    Belgian Grand Prix Sprint pole margin “not a big surprise” as Max Verstappen and Red Bull focus on “our own race” at Spa

    Max Verstappen believes that losing out on Sprint pole position for the Belgian Grand Prix was “not a big surprise” as the Red Bull driver finished half a second behind pace-setter Oscar Piastri.

    The four-time World Champion split the two McLaren drivers at Spa-Francorchamps during the Qualifying session, and will start alongside Drivers’ Championship leader Piastri for Saturday’s 15-lap Sprint.

    Piastri and McLaren team mate Lando Norris dominated proceedings on Friday, topping FP1 and all segments of Qualifying between themselves as Verstappen proved to be their only realistic challenger.

    Even armed with a low-downforce set-up to take advantage of the numerous high-speed sections, Verstappen believes the outright gap to Piastri will make it difficult to beat him in the Sprint.

    “Being P2 between them I think is a really good result for us and I do think we maximised,” said Verstappen post-session.

    “I enjoyed it out there, the lap itself was fine, was good. Of course the gap is very big but it’s been big already from FP1 so that’s not a big surprise. We just have to focus on ourselves and work on the balance of the car, try to go faster.

    “When you’re almost five tenths off I don’t think going faster or slower on the straight is going to matter a lot. We just have to do our own race and see what we can do.”

    Red Bull brought numerous upgrades to Spa this weekend, including a new front suspension and cooling system packages, but with only one Free Practice session before Sprint Qualifying, Verstappen was unsure of their potential.

    “It’s always difficult in a Sprint weekend to say exactly what they do of course but when you look at the gap, it’s not what we want right?” he said. “But we keep improving, keep trying to find more performance but other teams do the same thing so that’s just how it goes.”

    Team mate Yuki Tsunoda failed to reach the final segment of Sprint Qualifying, finishing SQ2 down in 12th having failed to match Verstappen for another weekend.

    “I missed out by six hundredths, I think that obviously it’s very tight,” Tsunoda explained after the session. “Just like usual, is a very tight session and each detail counts.

    “I tried my best, I think obviously every driver has it where you look back at some bits and bobs we can improve as usual. At least I know that it’s something I can improve but at the same time, missing out like this, it’s frustrating.”

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  • Field efficacy and safety evaluation of a novel chewable tablet (Credelio Quattro™) containing lotilaner, moxidectin, praziquantel, and pyrantel against gastrointestinal nematode infections in dogs in the USA | Parasites & Vectors

    Field efficacy and safety evaluation of a novel chewable tablet (Credelio Quattro™) containing lotilaner, moxidectin, praziquantel, and pyrantel against gastrointestinal nematode infections in dogs in the USA | Parasites & Vectors

    Gastrointestinal parasites in dogs such as Toxocara canis (roundworms) and Ancylostoma caninum (hookworms) in the USA are some of the most important and commonly diagnosed infections. In a study evaluating monthly prevalence data captured by the Companion Animal Parasite Council (CAPC) in the USA between 2012 and 2018, prevalence rates of A. caninum were reported to have increased yearly, with an overall 47% increase during this time [1]. Yearly prevalence rates for T. canis remained relatively consistent while Trichuris vulpis, whipworm, was found to have decreasing prevalence from 0.8% to 0.67% between 2012 and 2018 [1]. In Colorado, a study found the prevalence of canine hookworm increased by 137.3%, and roundworm increased by 35.6%, from 2013 to 2017, highlighting the important role dog importation plays in parasite and disease transmission, with many shelters and rescue organizations relocating dogs from the southeastern USA [2].

    Dogs, the definitive host for T. canis, become infected via transplacental transmission (in utero) or by ingesting larvated eggs or infected paratenic hosts such as rodents, rabbits, chickens, and other birds [3,4,5]. Eggs shed in the environment require 2–4 weeks to develop to the infective third-stage larvae (L3) [6]. Roundworm eggs are extremely resistant to environmental changes, capable of surviving for many years owing to their thick outer shell, therefore timely removal of infected fecal material from the environment is key to reducing transmission [7, 8]. After ingestion of larvated eggs, roundworm penetrate the intestinal mucosa, migrate through the liver and lungs, are coughed up and re-ingested, finally residing in the small intestine and developing into sexually mature adult worms [6]. In adult dogs, many ingested roundworm larvae arrest in somatic tissues during migration and are then activated during pregnancy, infecting puppies in utero transplacentally and, to a lesser degree, through transmammary transmission while nursing [9].

    Ancylostoma caninum infects dogs through ingestion of larvae from the environment, direct larval skin penetration, or ingestion of infected paratenic hosts such as rodents [10,11,12]. Hookworm eggs hatch and develop to L3 after approximately 2–9 days in the environment depending on the temperature and humidity, with hookworm being more susceptible to desiccation than roundworm. After ingestion, some L3 migrate through the lungs and arrest in somatic tissue, while other L3 remain in the alimentary tract and develop into sexually mature adults in the small intestine [13]. If infected by direct skin penetration, L3 migrate via the veins and lymphatics to the lungs, enter the trachea where the parasite is swallowed, and then develop in the small intestine to sexually mature adults [12]. In addition, transmammary infection can occur as arrested larvae in the tissues are reactivated during pregnancy and migrate to the mammary glands, thereby infecting puppies during nursing [14]. Arrested larvae in the somatic tissues can reactivate in dogs outside of pregnancy and can continuously migrate to the small intestine and develop to the adult stage leading to repeated repopulation of the intestine and prolonged egg shedding despite treatment, termed “larval leak” [15].

    While many roundworm and hookworm infections in dogs may be asymptomatic, the most common clinical signs include diarrhea and vomiting, abdominal distention, and lack of growth in young dogs in roundworm infections, as well as anemia, malnutrition, and even death in severe hookworm infections [10, 16]. In addition, roundworms and hookworms are important zoonotic parasites. Infection in humans with T. canis can cause visceral larva migrans (VLM), ocular larva migrans, or neurotoxocariasis with resulting brain tissue damage, and infection with Ancylostoma spp. can induce cutaneous larva migrans (CLM) [17,18,19].

    In order to properly diagnose and treat these important gastrointestinal parasites, CAPC currently recommends dogs receive fecal examinations at least four times in their first year of life and then at least twice annually thereafter, by fecal flotation with centrifugation. Puppies should be treated with anthelmintics at 2-week intervals, starting at 2 weeks of age until 8 weeks of age, and then administration of a year-round broad-spectrum anthelmintic thereafter to provide continuous protection [20]. In addition, prompt removal of feces from the environment is crucial to help prevent environmental contamination and future transmission. Drugs currently labeled for the treatment of T. canis and/or A. caninum by the US Food and Drug Administration (FDA) include fenbendazole, febantel, pyrantel, milbemycin oxime, and moxidectin, available in many different administration routes such as oral, topical, and injectable, and developed as both monotherapy and combination therapy formulations. Incorporation of combination therapy products in veterinary clinics has been demonstrated to increase the average number of monthly doses dispensed to clients as compared with monotherapy products, thereby increasing parasite coverage [21]. In addition, the ease of use of combination therapy products may increase owner compliance with timely and adequate administration.

    The occurrence of drug resistance in A. caninum has been documented recently in racing greyhound and pet dog populations across the USA [22,23,24]. Fecal samples obtained from suspected A. caninum-resistant cases were evaluated for benzimidazole and macrocyclic lactone resistance in vitro using the egg hatch (EHA) and larval development (LDA) assays, and pyrantel resistance in vivo, demonstrating in vitro resistance ratios ranging from 6.0 to > 100 and 5.5 to 69.8 for the EHA and LDA, respectively. No reduction in fecal egg counts were observed post-treatment with pyrantel, providing additional confirmation these hookworm isolates were multidrug resistant [25]. The mechanism of action and corresponding mutations associated with benzimidazole resistance in A. caninum has been confirmed, with a commercial diagnostic test available to detect molecular markers in fecal samples (KeyScreen® GI Parasite PCR, Antech Diagnostics, Inc.). This information is not yet understood for macrocyclic lactones and pyrantel, requiring in vitro EHA or LDA to identify macrocyclic lactone resistance and in vivo fecal egg count reduction testing to identify pyrantel resistance [23].

    This real-world field study provides practical information on product performance for veterinarians and pet owners, especially given rising A. caninum resistance. The objective of the field study described below was to evaluate the efficacy and safety of a novel, oral chewable tablet containing lotilaner, moxidectin, praziquantel, and pyrantel (Credelio Quattro, Elanco Animal Health, Greenfield, IN, USA), against naturally occurring roundworm and hookworm infections in dogs in the USA.

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  • A Visitor from Beyond the Solar System

    A Visitor from Beyond the Solar System

    On July 02, 2025, astronomers confirmed the discovery of Comet 3I/ATLAS, marking only the third time in recorded history that an interstellar object (ISO) has been identified passing through our Solar System. This follows the landmark discoveries of 1I/‘Oumuamua in 2017 and 2I/Borisov in 2019.

    The confirmation was discussed during a SETI Live broadcast hosted by Dr. Simon Steel, Deputy Director of the Carl Sagan Center at the SETI Institute, and featured expert commentary from University of Washington astronomer Dr. James Davenport, SETI Institute postdoctoral fellow and comet researcher Dr. Ariel Graykowski, and SETI Chair and Allen Telescope Array Project Scientist Dr. Wael Farah.

    Discovery by the ATLAS Survey

    Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four robotic telescopes located in Hawaii, Chile, and South Africa. ATLAS systematically surveys nearly the entire night sky every 24 hours, primarily searching for near-Earth objects that could pose a risk of impact.

    Initially, 3I/ATLAS appeared as a faint, fast-moving point of light. However, follow-up observations revealed the object was traveling at a hyperbolic velocity, meaning its speed and trajectory exceeded the Sun’s gravitational binding energy. This is characteristic of interstellar objects on open-ended orbits, distinguishing them from the typical elliptical orbits of bodies in the Solar System.

    Cometary Activity Detected: A Distinctive Feature

    Unlike 1I/‘Oumuamua, which lacked any visible comet-like features, 3I/ATLAS has displayed clear cometary activity, even while still four astronomical units (AU) from the Sun (one AU is the average distance between Earth and the Sun), making 3I/ATLAS more similar to 2I/Borisov in that regard.

    According to Dr. Graykowski, this activity manifests as a coma: a diffuse envelope of gas and dust created by the sublimation (transition from solid to gas) of volatile compounds. The early onset of sublimation indicates the presence of highly volatile ices, potentially providing a pristine record of the object’s origin outside the Solar System.

    Dr. Davenport emphasized that 3I/ATLAS is moving faster than either of the previous interstellar visitors at roughly 60 m/s, suggesting it was ejected from its parent stellar system with substantial kinetic energy, possibly due to gravitational interactions with massive planetary bodies or close stellar encounters.

    Multi-Wavelength Observations in Progress

    Optical Monitoring Through Citizen Science

    Dr. Graykowski leads optical monitoring efforts using the UNISTELLAR Network, a decentralized array of small, smart telescopes operated by citizen scientists worldwide. Despite the object’s faintness, UNISTELLAR telescopes (with apertures of just 3-4.5 inches) have successfully detected it using image stacking techniques to compensate for the comet’s rapid motion.

    Early brightness measurements reveal a steep increase in luminosity, which is consistent with dynamic new comets making their first close approach to a star. This rapid brightening reflects the sublimation of volatile compounds that have remained unaltered since their formation, offering a unique opportunity to probe primordial interstellar materials.

    Radio Observations at the Allen Telescope Array

    Radio observations began promptly at the SETI Institute’s Allen Telescope Array (ATA), led by Dr. Wael Farah. The ATA team initiated monitoring on the night of July 2, targeting both narrowband emissions (a potential indicator of artificial (technological) signals) and natural emissions such as continuum radiation from dust and specific spectral lines associated with common molecules like hydroxyl (OH).

    Within just a week, the ATA had amassed over 21 terabytes of data, equivalent to thousands of hours of high-resolution video. This dataset is under active analysis, with researchers scouring the data for both natural radio signatures and hypothetical technosignatures.

    Prospects for Spectroscopic Analysis

    Future observations from large facilities, including the Vera C. Rubin Observatory, will enable detailed spectroscopic studies, which are a technique used to decipher the chemical composition of astronomical objects. Spectroscopy will allow scientists to determine whether 3I/ATLAS harbors exotic compounds not commonly found in Solar System comets.

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  • New USC haptic technology adds sense of touch to virtual reality

    New USC haptic technology adds sense of touch to virtual reality

    Touch plays a vital role in how humans communicate and bond. From infancy through adulthood, physical contact helps foster emotional bonds, build trust and regulate stress. Yet in today’s increasingly digital world, where screens mediate many of our relationships, it is often missing.

    (Photo/Courtesy of Premankur Banerjee)

    To bridge the gap, researchers at the USC Viterbi School of Engineering have developed a wearable haptic system that lets users exchange physical gestures in virtual reality and feel them in real time, even when they’re miles apart.

    The system includes gloves and sleeves outfitted with small vibration motors that simulate sensations such as pressure and movement. This enables users to perform and feel gestures like pats, handshakes and squeezes within a shared virtual space. Users can also interact with virtual objects and receive realistic vibration feedback.

    Findings from a user study testing the technology, published in conjunction with the IEEE World Haptics Conference, showed that participants found virtual interactions more engaging, pleasant and realistic when they could feel gestures.

    “Even though people are spending just as much, if not more, time socializing online, we’re seeing rising levels of depression, anxiety and what’s often described as ‘touch starvation,’” said Heather Culbertson, associate professor of computer science and biomedical engineering at USC Viterbi and the study’s corresponding author.

    “People will continue interacting virtually — it’s part of modern life. But how can we make online interactions better reflect the social benefits that come from real-world experiences?”

    How it works

    The system supports up to 16 users simultaneously, each represented by a full-body 3D avatar that mirrors their real-world movements inside a shared virtual environment. Unlike traditional video calls, users can move freely around one another and interact with virtual objects — like passing a cup or completing team tasks.

    “This project was born from a simple, deeply human desire: to feel closer to the people we miss,” said Premankur Banerjee, a doctoral student in Culbertson’s Haptics Robotics and Virtual Interaction Lab and first author of the study.

    “Having spent over five years away from my own loved ones, this research was more than academic — it was personal,” he added. “It’s about using technology not just to simulate presence, but to restore a sense of physical closeness that’s often lost in long-distance communication.”

    Person and computer image
    Person and computer image (Photo/Courtesy of Premankur Banerjee)

    To add the sense of touch, users wear gloves and armbands equipped with vibration motors. These devices provide tactile feedback that simulates pressure and motion, allowing users to actually feel gestures and object interactions within the VR space.

    Lab tests showed that participants felt a greater sense of presence and social connection when tactile feedback was included. The research also explored how different factors, like gesture speed and vibration type, influenced emotional and sensory experiences, providing insights into how to design more engaging virtual touch interactions.

    “Developing this technology requires expertise from many fields,” Culbertson said. “Our team combines computer science, engineering, neuroscience, psychology and social sciences to create hardware and software that not only functions technically but also supports natural, emotionally meaningful social interactions.” (Watch a video from the researchers.)

    Reconnecting through touch

    The global shift toward online communication — accelerated by the COVID-19 pandemic — has brought undeniable convenience but also unintended consequences. People are more connected than ever digitally, yet feelings of loneliness, anxiety and depression remain high, especially among the nation’s youth.

    “While platforms like Zoom and FaceTime have allowed families, friends and colleagues to maintain visual and verbal contact, these modes lack the physicality that humans naturally crave,” Culbertson said.

    “While the technology will not replace the experience of in-person contact, it can be a powerful tool to augment social interaction when physical presence is not possible,” she added.

    In hospitals and long-term care facilities, the researchers’ system could allow patients and family members to share a comforting touch across distances. In remote and hybrid workplaces and classrooms, it offers more immersive ways to collaborate and engage. For loved ones separated by travel, deployment or circumstance, it brings a deeper sense of closeness.

    “Human touch is fundamental to our well-being, and while technology can’t fully replace it, bringing the sense of touch into virtual spaces is a critical step toward more meaningful connection in today’s digital world,” she said.

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  • NASA Invites Media to SpaceX’s 33rd Resupply Launch to Space Station

    NASA Invites Media to SpaceX’s 33rd Resupply Launch to Space Station

    Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station. This launch is the 33rd SpaceX commercial resupply services mission to the orbital laboratory for NASA and will liftoff on the company’s Falcon 9 rocket.

    NASA and SpaceX are targeting no earlier than Thursday, Aug. 21, to launch the SpaceX Dragon spacecraft from Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida.

    Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m. EDT, Sunday, Aug. 3. All accreditation requests must be submitted online at:

    https://media.ksc.nasa.gov

    Credentialed media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA’s Kennedy Space Center newsroom at: 321-867-2468.

    Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.

    Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, significantly increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.

    In addition to food, supplies, and equipment for the crew, Dragon will deliver several new experiments, including bone-forming stem cells for studying bone loss prevention and materials to 3D print medical implants that could advance treatments for nerve damage on Earth. Dragon also delivers bioprinted liver tissue to study blood vessel development in microgravity and supplies to 3D print metal cubes in space.

    For almost 25 years, humans have continuously lived and worked aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies that enable us to prepare for human exploration of the Moon as we prepare for Mars.

    Learn more about NASA’s commercial resupply missions at:

    https://www.nasa.gov/station

    -end-

    Claire O’Shea
    Headquarters, Washington
    202-358-1100
    claire.a.o’shea@nasa.gov

    Stephanie Plucinsky / Steven Siceloff / Danielle Sempsrott
    Kennedy Space Center, Fla.
    321-876-2468
    stephanie.n.plucinsky@nasa.gov / steven.p.siceloff@nasa.gov / danielle.c.sempsrott@nasa.gov

    Sandra Jones
    Johnson Space Center, Houston
    281-483-5111
    sandra.p.jones@nasa.gov

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  • ‘I don’t feel super energised right now’ – tired Tadej Pogačar all but seals Tour de France victory with defensive ride

    ‘I don’t feel super energised right now’ – tired Tadej Pogačar all but seals Tour de France victory with defensive ride

    Watching stage 19 of the Tour de France in a freezing La Plagne, just beyond the finish line, everyone was counting down the kilometres until Tadej Pogačar would launch his usual stinging attack. Would it be 5km to go? 3km? Even 1km? He has the speed.

    Thymen Arensman had attacked early on the climb to La Plagne, but was only around 20 seconds ahead of Pogačar, who was in a group with Jonas Vingegaard, Florian Lipowitz and Oscar Onley for most of the final effort. 20 seconds is the kind of gap that at another race, or earlier in this Tour, Pogačar would have eviscerated with one of his trademark moves. This is the man who seemingly wants to win as much as possible, that we all thought could win seven at this Tour after he won four of the first 13.

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  • England captain Ben Stokes retires early on 66 not out against India, but soon returns – Beloit Daily News

    England captain Ben Stokes retires early on 66 not out against India, but soon returns – Beloit Daily News

    1. England captain Ben Stokes retires early on 66 not out against India, but soon returns  Beloit Daily News
    2. Eng vs Ind 4th Test – Ben Stokes retires hurt with cramps after half-century  ESPNcricinfo
    3. England vs India: Captain Ben Stokes ‘good to go’ on day four, says Ollie Pope  BBC
    4. Watch: Ben Stokes screams in agony, collapses after Mohammed Siraj smashes him on the box  Cricket Addictor
    5. [Watch] ENG vs IND 2025: Ben Stokes returns to bat after retiring hurt earlier in Manchester Test, fans breathe a sigh of relief  CricTracker

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  • Doctors urge FDA to remove black box warning on hormone therapy for menopause

    Doctors urge FDA to remove black box warning on hormone therapy for menopause

    Treatments and best practices on when to prescribe hormone therapy and what medications to use have evolved in recent years. Image: MStudioImages/E+/Getty Images

    Doctors urge FDA to remove black box warning on hormone therapy for menopause

    When obstetrician JoAnn Pinkerton spoke on a Food and Drug Administration panel recently, she didn’t mince words.

    “Please stop harming women,” she said.

    Pinkerton argues that the FDA’s black box warning labels on hormone replacement therapies make women reluctant to take medications that can be beneficial for treating the symptoms of menopause.

    Pinkerton was one of 12 doctors — many of them experts in obstetrics and women’s health — who asked the FDA to remove the warning labels for low-dose estrogen treatment.

    The medication is typically prescribed to women to mitigate symptoms of menopause or perimenopause. Unlike other systemic hormone therapy treatments that are absorbed by the whole body, it is delivered locally — through a cream or a ring.

    The black box warning is the strongest safety label the FDA can put on a prescription medication. And Pinkerton and others argue that such a warning for low-dose estrogen treatment is unnecessary.

    The medication is often prescribed to prevent or address symptoms associated with menopause, including frequent urinary tract infections, vaginal dryness and pain during sexual intercourse.

    “ The boxed warning is not supported by science,” says Pinkerton. “It overstates risk.”

    Pinkerton described a recent patient suffering from such symptoms, for whom she had written a prescription. She pulls out the tube, “and it says warning: Endometrial cancer, cardiovascular disorders, probable dementia and breast cancer. And she looks at it, her partner or spouse looks at it and they throw it in the trash,” Pinkerton recounts.

    A pendulum swing toward HRT

    The consensus from the medical establishment on the safety of hormone treatment for menopause has changed dramatically in recent decades. In 2002, researchers partly halted a large study on women’s health — the Women’s Health Initiative — out of concern that hormone therapy was associated with increased risk of cancer and stroke. Breast cancer was a particular concern. Since then, researchers and doctors have determined the cancer risk was overstated.

    Treatments and best practices around when to prescribe hormone therapy and what medications exactly to prescribe have evolved in recent decades.

    Many doctors in women’s health have advocated for this change for years without success.  Recent studies suggest the cancer risks of some hormone therapies are quite low and there are significant benefits for women going through menopause. This is a pet issue for Dr. Marty Makary — the current FDA commissioner. Makary is a surgeon, not an obstetrician. He convened the panel.

    “Fifty million-plus women have not been offered the incredible potential health benefits of hormone replacement therapy,” Makary said in opening remarks at the panel, “because of medical dogma.”

    Makary said his own family could have benefited from this treatment when it fell out of favor with the medical establishment.

    “ One of those women was my mother,” he said, “who went through perimenopause around that time.”

    Obstetricians and gynecologists interviewed for this story agreed they would like to see the black box label removed for low-dose vaginal estrogen treatments that carry lower cancer risk.

    “ I usually will make a little joke about, hey, we’ve been working for many years to try to get that black box warning removed, but you know how slow government things can take,” said Dr. Monica Christmas, who regularly prescribes such treatments to her patients. Christmas is an OB-GYN who is also the associate medical director for The Menopause Society.

    Christmas expressed reticence, however, about removing labels for systemic estrogen, which carries a different risk profile for cancer.

    “ For the vast majority of people, the risk is low, even for systemic hormone therapy,” said Christmas, “but it’s not zero.”

    Christmas said the black box warning can prompt doctors and patients to have necessary conversations about the risks and benefits of such medications.

    The FDA panel focused primarily on low-dose estrogen, but Makary also hinted at removing the label for systemic therapy, mentioning the benefits as suggested in some studies for reduced risk of osteoporosis, among others.

    “We want to learn from all of you,” Makary said to the panel members, “help guide us as we think through what should be done here at the FDA.”

    “This was theater, not scientific evaluation”

    The panel was a departure from typical decision-making at the FDA.

    “This was theater, this was not scientific evaluation,” said Adriane Fugh-Berman,a professor of pharmacology at Georgetown University. Fugh-Berman is skeptical of removing such labels and points out that the FDA usually has a more rigorous process to inform these kinds of changes.

    “That process is being undermined and distorted,” she said.

    (Fugh-Berman has worked as a paid expert witness in litigation against pharmaceutical companies accused of overselling the benefits of hormone therapy and contributing to breast cancer.)

    FDA decision-making often involves a period of public input. Committees are appointed to study issues and make recommendations. Fugh-Berman said she would have preferred to see a period of public comment as well as an expert committee that included a wider range of experts such as epidemiologists, oncologists and experts in public health.

    Representatives from the FDA did not respond to a request for comment on this story or offer comment on future steps in a potential process to remove the warnings from prescriptions.

    At least one obstetrician celebrated the increased attention to this issue, even if it came through an unconventional process.

    “I was very happy,” said Rachel Rubin, a urologist with a specialty in sexual medicine. Rubin was also a panel member. “ The fact that the head of the FDA wants to be talking about this topic is extraordinary and something we’ve all been dreaming about,” she says.

     Rubin acknowledged the departure from the level of rigor to which the FDA usually adheres.

    “Were there voices missing? Of course,” she says. But given this opportunity, she said, it’s worth showing up to “fight for something you’ve been fighting for for decades.”

    OB-GYN Monica Christmas wouldn’t say whether she thought the composition of the panel should have been different or the process more rigorous. But she did express concern that enthusiasm for hormonal treatment for menopause may be eclipsing the necessary risk-benefit analysis that patients and doctors need to make when considering these medications.

    “Hormone therapy has become synonymous with menopause,” she says. And she cautions that women should rule out other issues before they jump to hormone therapy.

    “It’s almost like, ‘Oh, I’m in menopause,’” says Christmas, “I should have to be on hormone therapy for all of these magical or mystical benefits.”

    Audio transcript

    ARI SHAPIRO, HOST:

    A panel of doctors recently made a plea to the Food and Drug Administration.

    (SOUNDBITE OF ARCHIVED RECORDING)

    JOANN PINKERTON: Please stop harming women.

    SHAPIRO: That’s Dr. JoAnn Pinkerton, a professor of obstetrics and gynecology at the University of Virginia. She and other doctors are asking the FDA to remove the black box warning labels that come with hormone replacement therapies for menopause. NPR’s Katia Riddle reports.

    KATIA RIDDLE, BYLINE: The medical establishment has flip-flopped a lot in the past few decades on the question of whether hormone therapy to treat menopause symptoms is safe. But on this FDA panel, experts were in lockstep. The black box warning is the strongest safety label the FDA can put on a medication. The panel wants the government to remove it, specifically on prescriptions for low-dose vaginal estrogen. Again, Dr. Pinkerton.

    (SOUNDBITE OF ARCHIVED RECORDING)

    PINKERTON: The boxed warning is not supported by science. It overstates risk.

    RIDDLE: In this case, the doctors argued, the warning is a relic from over 20 years ago. At that time, researchers thought hormone therapy significantly increased cancer risk, and worried about breast cancer in particular. Now, medications have changed, and scientific opinion has swung the other way and determined the risk was overstated. But still, the warnings remain on the boxes. Pinkerton says they scare people who could benefit from these treatments, like this patient she described.

    (SOUNDBITE OF ARCHIVED RECORDING)

    PINKERTON: She pulls out the tube of estrogen and it says, warning – endometrial cancer, cardiovascular disorders, probable dementia and breast cancer. She looks at it, her partner or spouse looks at it, and they throw it in the trash.

    RIDDLE: Many of the doctors on this panel said they advocated for this change for years without success. Recent studies suggest the cancer risks of some hormone therapies are quite low, and there are significant benefits for women going through menopause. This is a pet issue for Dr. Marty Makary, the current FDA commissioner. Makary is a surgeon, not an obstetrician. He convened the panel.

    (SOUNDBITE OF ARCHIVED RECORDING)

    MARTY MAKARY: Fifty-million-plus women have not been offered the incredible potential health benefits of hormone replacement therapy because of medical dogma.

    RIDDLE: Makary said his own family could have benefited from this treatment when it fell out of favor with the medical establishment.

    (SOUNDBITE OF ARCHIVED RECORDING)

    MAKARY: One of those women was my mother, who went through perimenopause around that time.

    RIDDLE: Obstetricians and gynecologists interviewed for this story agreed they would like to see the black box label removed, at least for some kinds of hormone therapy that carry less of a cancer risk than others. At the same time, some experts acknowledge that this panel was a departure from the way decisions are typically made at the FDA.

    ADRIANE FUGH-BERMAN: This was theater. This was not scientific evaluation.

    RIDDLE: Adriane Fugh-Berman is a professor of pharmacology at Georgetown University. She’s skeptical of removing these labels. She points out that the FDA usually has a more rigorous process to inform these kinds of changes.

    FUGH-BERMAN: That process is being undermined and distorted.

    RIDDLE: Representatives from the FDA insisted in an email that they are using, quote, “rigorous evidence-based standards” in their oversight. FDA decision making often involves a period of public input. Committees are appointed to study issues and make recommendations. Fugh-Berman says it’s important to hear from experts with a range of credentials on something like this, who consider issues from different perspectives.

    FUGH-BERMAN: There wasn’t an epidemiologist. There wasn’t an oncologist. There was not a public health person on that panel.

    RIDDLE: The FDA may decide labels on these prescriptions are unnecessary. One thing that is necessary, says Fugh-Berman, is the scientific process.

    Katia Riddle, NPR News.

    (SOUNDBITE OF MUSIC)

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  • Gold (XAUUSD), Silver, Platinum Forecasts – Gold Retreats Amid Falling Demand For Precious Metals – FXEmpire

    Gold (XAUUSD), Silver, Platinum Forecasts – Gold Retreats Amid Falling Demand For Precious Metals – FXEmpire

    1. Gold (XAUUSD), Silver, Platinum Forecasts – Gold Retreats Amid Falling Demand For Precious Metals  FXEmpire
    2. Gold drops as dollar firms, trade deal hopes sap safe-haven demand  Business Recorder
    3. Gold and silver are losing momentum ahead of the Fed decision: Can disappointing jobs data save them?  KITCO
    4. Gold subdued as trade optimism weighs, but soft dollar cap losses  Dunya News
    5. Evening update for Gold -25-07-2025  Economies.com

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  • Researchers Explore Gas Chromatography to Improve Forensic Ink Analysis

    Researchers Explore Gas Chromatography to Improve Forensic Ink Analysis

    Key Points

    • Documentary evidence can be vital to forensic investigations, though tampering techniques make proper authentication a complicated process.
    • In a new study, gas chromatography–ion mobility spectrometry (GC–IMS) was combined with machine learning algorithms to investigate the temporal evolution of ink stains.
    • The decision tree regression model demonstrated high temporal prediction accuracy (test R²=0.954) through interpretable feature engineering. A stepwise strategy combining classification and regression models was proposed, allowing simultaneous ink characterization and age estimation.

    Researchers from China, led by Wenhui Lu of Shangdong University, developed a new approach for studying temporal evolution during ink analysis, combining gas chromatography–ion mobility spectrometry (GC–IMS) with machine learning (ML) algorithms. Their findings were published in the Journal of Chromatography A (1).

    Close-Up of a Fountain Pen on Handwritten Document | Image Credit: © villorejo – stock.adobe.com

    Authenticating documentary evidence can face various challenges due to the existence of sophisticated tampering techniques, such as content manipulation, page substitution, handwriting forgery, and digital alteration. Vital forensic evidence, disputed documents require rigorous examination, mainly through ink analysis, handwriting verification, and material characterization, to establish legal validity. Statistical analysis of Chinese civil litigation cases (2018–2023) reveals that 73% of document-related disputes involve contracts (57%), private loans (10%), and labor conflicts (6%). There is a critical demand for reliable dating authentication methods; however, evaluating the temporal evolution of ink remains challenging due to the complexity of ink compounds, environmental sensitivity, and technical constraints.

    Ion mobility spectrometry (IMS) is an analytical technique that characterizes volatile organic compounds (VOCs) through differential drift times of gas-phase ions under an applied electric field. Compared to gas chromatography (GC), IMS offers advantages like ambient temperature, pressure operation capabilities, and significantly reduced analysis times. When GC is combined with IMS, the scientists think that GC–IMS could be a solution for forensic evidence analysis with the efficient separation ability of GC and the rapid trace-amount detection advantage of IMS. Complex-matrix samples can be initially separated with GC, then introduced into ion-mobility tubes for secondary separation and detection. This technique can skip sample pre-treatment during analysis, which enables non-destructive testing, and it enables more efficient qualitative analysis for identifying characteristic markers in writing ink.

    To investigate the abundant GC–IMS data of complex ink volatiles, researchers must further optimize the interpretable analysis of GC–IMS data for the rapid identification of ink volatile markers and summarizing temporal evolution stages. In this study, scientists used GC–IMS with ML algorithms to investigate the temporal evolution stages classification and aging time prediction of gel-pen ink. Ink-specific volatile markers were correlated with aging mechanisms with kinetic modeling and heatmap analysis. Three distinct temporal evolution stages were categorized: rapid evaporation, slow-release, and chemical stabilization through multivariate analysis of volatiles. Further, six tree-based ML algorithms were systematically evaluated. The Categorical Boosting (CatBoost) model achieving superior performance (accuracy = 100%) in classifying five detailed aging stages of gel-pen ink.

    In this research, the scientists hoped to address three critical challenges: (i) establishing a GC-IMS-based protocol to decode the aging mechanisms of gel-pen ink through volatile organic compound fingerprinting, (ii) integrating unsupervised and supervised learning to classify temporal evolution stages and predict aging timelines, and (iii) unveiling chemically meaningful aging markers through interpretable machine learning approaches.

    The decision tree regression model demonstrated high temporal prediction accuracy (test R²=0.954) through interpretable feature engineering. A stepwise strategy combining classification and regression models was proposed, allowing simultaneous ink characterization and age estimation.

    This study provides a new approach for evaluating temporal patterns in gel-pink ink using GC–IMS data-driven interpretable models, establishing theoretical foundations for authenticating disputed documents in forensic applications. The scientists hope this methodology could provide a validated approach for classifying temporal evolution stages and predicting aging time, significantly improving the efficiency of forensic analysis in judicial investigations.

    Reference

    (1) Lu, W.; Chen, J.; Zhang, L.; Nie, Z. Temporal Evolution Stages Classification and Aging Time Prediction of Gel-Pen Ink Using GC-IMS Combined with Machine Learning for Forensic Science Applications. J. Chromatogr. A 2025, 1755, 466063. DOI: 10.1016/j.chroma.2025.466063

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