Christi Hill and male officer misidentified in Vickrum Digwa murder case on AI platforms including Grok

A former police officer has been forced to flee to a safe space after she was falsely accused online of being involved in the arrest of Henry Nowak.

Christi Hill, who served as a police constable for 12 years, has criticised social media and AI platforms, including Elon Musk’s Grok, for spreading the false claim that she was one of the officers who arrested Nowak as he lay dying after being stabbed by Vickrum Digwa.

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© Photograph: Lab Mo/SOPA Images/Shutterstock

© Photograph: Lab Mo/SOPA Images/Shutterstock

© Photograph: Lab Mo/SOPA Images/Shutterstock

The company said it's worked up a moderation system that uses a blend of AI and human input to moderate both visual and written content.

Deep underground, on the border between Switzerland and France, the Large Hadron Collider (LHC) is starting back up again after a 4 year hiatus. Today, July 5th, the LHC had its first full energy collisions since 2018.  Whenever the LHC is running is exciting enough on its own, but this new run of data taking will also feature several upgrades to the LHC itself as well as the several different experiments that make use of its collisions. The physics world will be watching to see if the data from this new run confirms any of the interesting anomalies seen in previous datasets or reveals any other unexpected discoveries. 

New and Improved

During the multi-year shutdown the LHC itself has been upgraded. Noticably the energy of the colliding beams has been increased, from 13 TeV to 13.6 TeV. Besides breaking its own record for the highest energy collisions every produced, this 5% increase to the LHC’s energy will give a boost to searches looking for very rare high energy phenomena. The rate of collisions the LHC produces is also expected to be roughly 50% higher  previous maximum achieved in previous runs. At the end of this three year run it is expected that the experiments will have collected twice as much data as the previous two runs combined. 

The experiments have also been busy upgrading their detectors to take full advantage of this new round of collisions.

The ALICE experiment had the most substantial upgrade. It features a new silicon inner tracker, an upgraded time projection chamber, a new forward muon detector, a new triggering system and an improved data processing system. These upgrades will help in its study of exotic phase of matter called the quark gluon plasma, a hot dense soup of nuclear material present in the early universe. 

 

ATLAS and CMS, the two ‘general purpose’ experiments at the LHC, had a few upgrades as well. ATLAS replaced their ‘small wheel’ detector used to measure the momentum of muons. CMS replaced the inner most part its inner tracker, and installed a new GEM detector to measure muons close to the beamline. Both experiments also upgraded their software and data collection systems (triggers) in order to be more sensitive to the signatures of potential exotic particles that may have been missed in previous runs. 

The LHCb experiment, which specializes in studying the properties of the bottom quark, also had major upgrades during the shutdown. LHCb installed a new Vertex Locator closer to the beam line and upgraded their tracking and particle identification system. It also fully revamped its trigger system to run entirely on GPU’s. These upgrades should allow them to collect 5 times the amount of data over the next two runs as they did over the first two. 

Run 3 will also feature a new smaller scale experiment, FASER, which will study neutrinos produced in the LHC and search for long-lived new particles. 

What will we learn?

One of the main goals in particle physics now is direct experimental evidence of a phenomena unexplained by the Standard Model. While very successful in many respects, the Standard Model leaves several mysteries unexplained such as the nature of dark matter, the imbalance of matter over anti-matter, and the origin of neutrino’s mass. All of these are questions many hope that the LHC can help answer.

Much of the excitement for Run-3 of the LHC will be on whether the additional data can confirm some of the deviations from the Standard Model which have been seen in previous runs.

One very hot topic in particle physics right now are a series of ‘flavor anomalies‘ seen by the LHCb experiment in previous LHC runs. These anomalies are deviations from the Standard Model predictions of how often certain rare decays of the b quarks should occur. With their dataset so far, LHCb has not yet had enough data to pass the high statistical threshold required in particle physics to claim a discovery. But if these anomalies are real, Run-3 should provide enough data to claim a discovery.

There are also a decent number ‘excesses’, potential signals of new particles being produced in LHC collisions, that have been seen by the ATLAS and CMS collaborations. The statistical significance of these excesses are all still quite low, and many such excesses have gone away with more data. But if one or more of these excesses was confirmed in the Run-3 dataset it would be a massive discovery.

While all of these anomalies are gamble, this new dataset will also certainly be used to measure various known entities with better precision, improving our understanding of nature no matter what. Our understanding of the Higgs boson, the top quark, rare decays of the bottom quark, rare standard model processes, the dynamics of the quark gluon plasma and many other areas will no doubt improve from this additional data.

In addition to these ‘known’ anomalies and measurements, whenever an experiment starts up again there is also the possibility of something entirely unexpected showing up. Perhaps one of the upgrades performed will allow the detection of something entirely new, unseen in previous runs. Perhaps FASER will see signals of long-lived particles missed by the other experiments. Or perhaps the data from the main experiments will be analyzed in a new way, revealing evidence of a new particle which had been missed up until now.

No matter what happens, the world of particle physics is a more exciting place when the LHC is running. So lets all cheers to that!

Read More:

CERN Run-3 Press Event / Livestream Recording “Join us for the first collisions for physics at 13.6 TeV!“

Symmetry Magazine “What’s new for LHC Run 3?”

CERN Courier “New data strengthens RK flavour anomaly“

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Fight the scourge of unsolicited rings and pings from spammers, scammers, and telemarketers.

Fight the scourge of unsolicited rings and pings from spammers, scammers, and telemarketers.

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Soccer fans on r/WorldCup2026Tickets are using Claude to build DIY ticketing software, exchanging on back channels, and leaving scalpers scrambling.

Soccer fans on r/WorldCup2026Tickets are using Claude to build DIY ticketing software, exchanging on back channels, and leaving scalpers scrambling.

A groundbreaking innovation in environmental monitoring has emerged from the Institute of Experimental Physics at Graz University of Technology (TU Graz), where Birgitta Schultze-Bernhardt and her research team have engineered an advanced ultraviolet (UV) dual-comb spectrometer. This cutting-edge device offers unparalleled precision and sensitivity in detecting gaseous pollutants, including formaldehyde, a harmful chemical compound frequently found in urban and industrial atmospheres. Utilizing dual ultraviolet laser pulses, their spectrometer can measure pollutant concentrations within merely half a second, a feat that sets it apart from previous technologies that were slower and less accurate.

At the core of this spectrometer lies the generation of two ultra-short laser pulses in the ultraviolet spectral range, executed within fractions of a second. When these pulses interact with gas molecules, they trigger electronic excitation that causes the molecules to undergo rovibronic transitions—a complex interplay of rotational, vibrational, and electronic energy changes. Each molecule’s unique rovibronic fingerprint leads to the selective absorption of specific UV frequencies, allowing the spectrometer to unmistakably identify and quantify a vast variety of gaseous pollutants by their distinct spectral signatures.

The first prototype of this UV dual-comb spectrometer, developed over two years ago, marked a monumental milestone as the world’s inaugural instrument of its kind. However, it was originally confined to bulky laboratory setups that limited its practical application beyond research environments. The recent redesign has transformed the apparatus into a remarkably compact unit, approximately the size of a cardboard removal box, making it feasible for mobile use across different environments such as urban centers, industrial zones, and agricultural landscapes. Complementing this compactness, the innovation employs a single laser source that generates the dual laser pulses, which eliminates the need for intricate electronic stabilization and enhances the system’s robustness.

The spectrometer achieves a spectral resolution of 1 gigahertz in detecting UV light frequencies, a remarkable advancement over conventional UV spectrometers. This ultra-high resolution facilitates the capture of molecular absorption patterns at an unprecedented level of detail, allowing researchers to observe spectral features of formaldehyde never before documented experimentally. This development opens new frontiers in molecular spectroscopy, where previously inaccessible fine structures in the UV absorption spectra become accessible, enhancing the understanding of molecular dynamics and environmental chemistry.

One of the most striking outcomes of the spectrometer’s application involves revisiting the long-established rotational constants of formaldehyde. These constants, fundamental parameters that characterize the rotational energy levels of molecules, have been part of physics databases and textbooks since the 1960s. Through their high-resolution measurements, Schultze-Bernhardt’s team discovered discrepancies of up to 15% in these values. Collaborative work with the Harvard-Smithsonian Center for Astrophysics and the expertise of organic chemist Rolf Breinbauer from TU Graz—who provided high-purity formaldehyde samples—enabled the correction of these constants, substantially refining molecular data that underpin much of molecular physics and chemistry.

This advancement bears significant implications for both fundamental research and practical environmental monitoring. The UV dual-comb spectrometer’s capability to accurately identify and quantify semi-transparent gaseous substances holds immense promise for real-time, high-precision surveillance of air quality. Its design permits deployment in varied settings where air pollution and gas leaks pose health and safety risks. Ongoing research efforts aim to extend its functionality to estimate multiple pollutant concentrations simultaneously in a single measurement cycle, which would exponentially increase its utility for comprehensive environmental diagnostics.

The device’s portability and rapid measurement capabilities uniquely position it to revolutionize air quality monitoring in real-world environments. Unlike traditional bulky systems requiring extensive setup and calibration, this spectrometer is expected to empower environmental agencies, industrial operators, and even laypersons to perform reliable air quality assessments with minimal training. Funded in part by a Proof of Concept Grant from the European Research Council, ongoing development focuses on creating user-friendly versions of the UV spectrometer tailored for widespread adoption in companies and monitoring organizations.

The journey toward this technological leap has been supported by significant funding from prominent science funding bodies, reflecting its strategic importance. The Austrian Science Fund (FWF) and the European Research Council have both underpinned the foundational research projects led by Schultze-Bernhardt. Additionally, infrastructural support from NAWI Graz facilitated the creation of the novel laser source crucial to the device’s current compact configuration. Together, this support not only underscores the technology’s innovation but also its alignment with broader scientific and environmental priorities.

This novel UV dual-comb spectrometer stands as a testament to the fusion of sophisticated laser physics, molecular spectroscopy, and environmental science, promising to set a new standard in pollutant detection. By uncovering previously unknown molecular behaviors and enhancing the accuracy of atmospheric measurements, it elevates both academic knowledge and applied environmental monitoring technologies. Its swift response time and robust design suggest future integration in smart-city air quality networks and industrial safety systems, heralding a new era of precision environmental stewardship.

The technology’s fundamental mechanism—utilizing dual frequency combs in the ultraviolet range—enables the spectrometer to directly sample electronic transitions of molecules, a domain traditionally challenging due to the complexity of UV light generation and detection. The simplification achieved by employing a single laser source for dual-comb generation not only reduces device complexity but also improves spectral stability, making the instrument less susceptible to environmental perturbations—a critical factor for field deployment.

Moreover, this spectrometer’s ability to probe rovibronic transitions at such high resolution helps bridge the gap between conventional infrared spectrometry and electronic spectroscopy, providing detailed databases of UV absorption features that have implications beyond atmospheric science. Astrophysics, atmospheric chemistry, and even industrial process monitoring stand to benefit from the enhanced spectral data this instrument can deliver, enabling more accurate modeling and monitoring of molecular interactions in diverse environments.

In conclusion, the advancement of the UV dual-comb spectrometer by Schultze-Bernhardt and her team marks a seminal moment in molecular spectroscopy and environmental sensing. Its rapid, precise, and portable measurement of air pollutants ushers in a powerful tool for addressing urgent challenges related to air quality and human health. As the instrument transitions from laboratory innovation to widespread application, it embodies the promise of laser physics-driven solutions contributing tangibly to global environmental sustainability and scientific discovery.

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Subject of Research: Not applicable

Article Title: Free-running ultraviolet dual comb spectroscopy enabling absolute electronic fingerprinting

News Publication Date: 21-May-2026

Web References:
DOI: 10.1186/s43074-026-00250-6

Image Credits: Oliver Wolf – TU Graz

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Keywords

UV dual-comb spectrometer, ultraviolet spectroscopy, rovibronic transitions, formaldehyde detection, air pollutant monitoring, molecular spectroscopy, environmental sensing, laser physics, portable spectrometer, atmospheric chemistry, spectral resolution, innovation in spectroscopy

Heather Jacene, MD, has assumed the prestigious role of president of the Society of Nuclear Medicine and Molecular Imaging (SNMMI), marking a significant milestone in the advancement of nuclear medicine and molecular imaging disciplines. Dr. Jacene’s appointment was announced during the SNMMI 2026 Annual Meeting held from May 30 to June 2 in Los Angeles, an event that gathers experts and pioneers driving innovation in precision medicine and molecular diagnostics. Her leadership is poised to catalyze new developments that integrate cutting-edge research with clinical practice, deepening the impact of molecular imaging technologies on patient outcomes.

In her multifaceted career, Dr. Jacene holds several prominent positions, including Chief of Molecular Imaging and Theranostics at Beth Israel Deaconess Medical Center, Clinical Director of Nuclear Medicine/PET-CT, and Senior Physician at Dana-Farber Cancer Institute. She also serves as Associate Professor of Radiology at Harvard Medical School. Her diverse roles underscore a strong commitment to pushing the boundaries of nuclear medicine through both clinical excellence and academic rigor, highlighting her capacity to bridge the gap between innovative research and patient-centered care.

One of Dr. Jacene’s primary objectives as president is to reinforce SNMMI as an indispensable resource for its members, spanning the spectrum from foundational basic science research to the highest standards of evidence-based clinical application. She emphasizes the critical importance of fostering an environment where nuclear medicine evolves through interdisciplinary collaboration and robust scientific inquiry, ensuring that the field remains at the forefront of diagnostic and therapeutic modalities.

Dr. Jacene is focused on creating dynamic platforms within SNMMI that encourage active participation and collaboration among members, transcending traditional disciplinary boundaries. By promoting multidisciplinary partnerships, she envisions expanding the reach and influence of nuclear medicine, driving innovations that enhance molecular imaging technologies such as PET-CT and radiopharmaceutical therapies. Her approach involves breaking down silos to facilitate knowledge exchange and accelerate technological advancements.

A major part of her agenda involves advocating for increased awareness and acceptance of nuclear medicine among clinical colleagues and patients alike. She aims to communicate the tangible benefits of these advanced imaging techniques in personalized medicine, emphasizing how molecular imaging enables precise characterization of disease states and therapeutic responses. This strategic communication will help solidify nuclear medicine’s role as a cornerstone of modern clinical practice.

Another critical challenge Dr. Jacene intends to address involves the barriers related to the availability, reimbursement, affordability, and funding of radiopharmaceuticals. These radiotracers are indispensable tools in targeted diagnostic and therapeutic procedures, yet their accessibility remains uneven. Her leadership will concentrate on policy advocacy and operational innovations to ensure broader and timely access to these vital agents, thus enhancing the clinical utility and patient reach of nuclear medicine.

Dr. Jacene’s extensive training and expertise reflect a career dedicated to nuclear medicine and molecular imaging. She earned her medical degree from the University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School in New Brunswick, New Jersey. She subsequently completed both her residency and fellowship in nuclear medicine and PET-CT at Johns Hopkins University, Baltimore, where she honed her skills in cutting-edge diagnostic imaging techniques and the evolving applications of radiopharmaceuticals in oncology and beyond.

Her longstanding involvement with SNMMI is marked by significant leadership roles, including chairing the Scientific Program Committee, where she orchestrated innovative transformations to the Annual Meeting format. These changes have led to enhanced member engagement, increased networking opportunities, and a fertile ground for presenting novel research. She has also played a pivotal role in quality assurance, serving as Chair for the Quality of Practice Domain within the SNMMI Value Initiative, and helped establish the Radiopharmaceutical Centers of Excellence Program to standardize and elevate the delivery of radiopharmaceutical therapies.

Dr. Jacene’s research portfolio is both extensive and impactful, focusing predominantly on the application of FDG-PET/CT and other emerging PET tracers for the assessment of cancer biology and therapeutic efficacy. Her investigations delve into functional imaging biomarkers that reveal tumor metabolism, receptor expression, and microenvironmental changes, thereby informing more personalized and adaptive treatment strategies. Furthermore, she explores novel radiopharmaceutical therapies that promise to revolutionize the management of malignancies through targeted molecular interventions.

In addition to more than 100 peer-reviewed scientific publications, Dr. Jacene has authored numerous review articles and book chapters, contributing authoritative perspectives on the evolving landscape of molecular imaging and theranostics. Her scholarship not only advances academic discourse but also aids in translating complex imaging science into practical clinical guidelines and protocols that optimize patient care.

The new SNMMI leadership team for 2026-27 includes other distinguished figures such as Gary Ulaner, MD, PhD, FSNMMI, chosen as president-elect, and Jason S. Lewis, PhD, FSNMMI, as vice president-elect. The SNMMI Technologist Section has also elected Shannon Youngblood, EdD, MSRS, CNMT, RT(CT), as president, with Sara L. Johnson, CNMT, RT(N)(CT), serving as president-elect. Together, this leadership cadre represents a diverse spectrum of expertise poised to drive the society’s mission forward.

SNMMI remains a global scientific and medical organization dedicated to propelling nuclear medicine, molecular imaging, and theranostic precision medicine. Through its efforts, SNMMI facilitates innovations that allow clinicians to tailor diagnostic and therapeutic approaches to individual patients with unprecedented specificity, aiming for optimal outcomes. Dr. Jacene’s presidency symbolizes a sustained commitment to integrating high-caliber research, education, and clinical practice at the forefront of this transformative field.

Subject of Research:
Heather Jacene’s presidency at SNMMI and advancements in nuclear medicine and molecular imaging, including PET-CT innovations and radiopharmaceutical therapy.

Article Title:
Heather Jacene, MD, Named President of the Society of Nuclear Medicine and Molecular Imaging: Advancing the Future of Molecular Imaging and Theranostics

News Publication Date:
June 2026

Web References:
http://www.snmmi.org/

Image Credits:
Courtesy of SNMMI

Keywords:
Molecular imaging, Nuclear medicine, Positron emission tomography, Personalized medicine, Radiopharmaceutical therapy, Theranostics, FDG-PET/CT, Radiopharmaceutical Centers of Excellence, Precision medicine, SNMMI, Cancer imaging, Clinical molecular imaging

In the quest to secure global food safety amidst rising environmental contamination, researchers have pioneered a transformative approach targeting the persistent problem of toxic metalloid contamination in paddy soils. Rice, sustaining over half the world’s population, is at risk because arsenic (As) and antimony (Sb) present in mining-affected soils readily translocate into rice grains, posing substantial health hazards. Recent advancements reported in the journal Biochar reveal a cutting-edge remediation material—a magnetic silicon-enriched biochar gel—that shows exceptional efficacy in immobilizing these toxins, ultimately mitigating their bioaccumulation in rice and enhancing crop health.

The core innovation stems from the engineering of FeRBG, a functional biochar composite synthesized by integrating rice husk-derived biochar, iron oxides, and graphene into a three-dimensional porous gel network. Rice husk, an abundant agricultural byproduct, is distinguished by its natural silicon content, a mineral known to bolster plant stress resistance and potentially curtail metalloid uptake. The strategic incorporation of iron oxides and graphene amplifies reactive surface sites and structural stability, facilitating stronger affinity and retention of arsenic and antimony within paddy soils.

The significance of this approach is underscored by the system-level testing conducted in soils sourced from the heavily contaminated Qinglong Antimony Mine in Guizhou Province, China. This locale represents a critical case study for dual metalloid contamination. Employing greenhouse pot trials, researchers benchmarked FeRBG’s performance against untreated soil and soils amended with either unmodified rice husk biochar or iron-loaded biochar. The results definitively highlighted FeRBG as the premier amendment capable of simultaneously diminishing the bioaccessible pools of both arsenic and antimony.

Quantitative geochemical analyses demonstrated that FeRBG reduced phosphate-extractable arsenic and antimony concentrations by approximately 22.3% and 23.1%, respectively. These reductions correspond to a substantial shift of contaminants into more stable residual and iron oxide-bound soil fractions. Such chemical sequestration minimizes mobilization pathways, thereby limiting metalloid uptake by rice plants during growth. This mechanism employs the formation of stable Fe-O-As and Fe-O-Sb complexes on the biochar surfaces, effectively locking these harmful metalloids in place.

Crucially, the study reports a pronounced decline in arsenic and antimony concentrations within rice grains themselves, a pivotal marker of improved food safety. FeRBG treatment achieved a 34.0% reduction in grain arsenic and a 16.1% decrease in grain antimony relative to controls. Notably, the arsenic content in rice grains under FeRBG application fell to 0.14 mg kg⁻¹, placing it well below China’s national regulatory threshold for brown rice. These findings herald a transformative advance in the mitigation of toxic metalloid transfer through the soil-rice continuum.

Beyond contaminant immobilization, FeRBG exhibits pronounced agronomic benefits that directly impact rice productivity and resilience. Enhanced root system architecture was observed, characterized by increased total root length, surface area, mean diameter, and root tip abundance. These morphological improvements translate to a robust root network capable of optimizing nutrient and water uptake. Consequently, rice plants cultivated in FeRBG-amended soils showed higher fresh biomass in roots, stems, and panicles, alongside a significant 13.1% increase in thousand-grain mass.

The multifunctional efficacy of FeRBG is attributed to synergistic mechanisms operating at geochemical, microbial, and phytophysiological levels. Silicon release from the biochar matrix may interfere with arsenic transport pathways in rice, mitigating uptake at the root-shoot interface. Additionally, the porous gel architecture ensures a high density of adsorption sites facilitating effective metalloid binding. On the microbial front, soil bacterial community profiling revealed shifts favoring taxa involved in nutrient cycling and environmental stress mitigation, indicating that FeRBG fosters a more resilient and health-promoting rhizosphere.

Integrating these diverse functional attributes, FeRBG transcends conventional soil amendments by simultaneously addressing pollutant immobilization and crop health enhancement. This integrated remediation strategy not only secures safer rice production pathways but also promotes sustainable agricultural practices in mining-impacted regions. The magnetism inherent to FeRBG adds a practical dimension, potentially enabling targeted recovery and recycling of the biochar material, optimizing field management approaches.

The implications of this research extend to environmental engineering, soil science, microbiology, and agronomy, providing a template for leveraging biochar-based technologies to tackle complex co-contamination challenges. While promising, broader deployment initiatives require comprehensive field-scale trials to evaluate long-term stability, cost-effectiveness, and ecological safety under varied climatic and farming scenarios. These future investigations will be pivotal for translating laboratory efficacy into real-world agricultural sustainability.

Overall, this pioneering work elevates functionalized biochar beyond a mere sorbent to an integrated soil amendment that enhances the biogeochemical dynamics of paddy ecosystems. By locking toxic elements securely in soil matrices and simultaneously bolstering plant physiological functions, FeRBG exemplifies the next generation of environmentally conscious remediation technologies tailored for food safety and ecosystem health.

Subject of Research: Magnetic silicon-enriched biochar gel for remediation of arsenic and antimony contamination in soil-rice systems.

Article Title: Magnetic silicon-enriched biochar for effectively mitigating As and Sb in soil-rice continuum: from integrated geochemical, microbial, and phytophysiological insights.

News Publication Date: March 10, 2026.

Web References: DOI Link

References: Gao, Y., Chen, H., Wang, F. et al. Biochar 8, 74 (2026).

Image Credits: Yurong Gao, Hanbo Chen, Fenglin Wang, Jiayi Li, Zheng Fang, Xiaokai Zhang, Xing Yang, Jin Wang, Juan Liu, Caibin Li & Hailong Wang.

Keywords

Biochar, arsenic remediation, antimony remediation, soil contamination, rice safety, magnetic biochar gel, silicon-enriched biochar, iron oxides, graphene, soil microbiology, phytophysiology, environmental remediation.