[Domestic] :
The transport ministry will restrict the takeoff and landing of all aircraft for about half an hour on Thursday to prevent distractions during the English listening portion of the annual College Scholastic Ability Test. The ministry said Tuesday that the restrictions will be in place from 1:05 p.m. to 1:40 ...

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[Sports] :
Prosecutors are seeking a four-year prison term for football forward Hwang Ui-jo, who has admitted to filming sexual encounters without his partners’ consent. The 32-year-old footballer, who plays for the Turkish Süper Lig club Alanyaspor, entered the guilty plea Wednesday at the Seoul Central District ...

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[Culture] :
ADOR, the agency that manages the K-pop girl group NewJeans, has rejected a proposal to reinstate Min Hee-jin as CEO. According to industry sources, the agency’s board of directors met Wednesday at HYBE’s headquarters in Yongsan, Seoul, and the majority voted against the proposal. The board meeting was ...

[more...]

Forty years and counting: new topsoil data provides most extensive snapshot of environmental pollution effects  British Geological Survey

Low-concentration poly(ethylene oxide) exhibit the polymorph-dependent effects on both the surface and bulk crystal growth of carbamazepine polymorphs. These polymorph-dependent effects of PEO were mainly attributed to the polymer enrichment at the interface and different crystal surface-polymer interactions.

Analytical calculations of absorption corrections for X-ray powder diffraction experiments on non-ideal samples with surface roughness, porosity or absorption contrasts from multiple phases require complex mathematical models to represent their material distribution. In a computational approach to this problem, a practicable ray-tracing algorithm is formulated which is capable of simulating angle-dependent absorption corrections in reflection geometry for any given rasterized sample model. Single or multiphase systems with arbitrary surface roughness, porosity and spatial distribution of the phases in any combination can be modeled on a voxel grid by assigning respective values to each voxel. The absorption corrections are calculated by tracing the attenuation of X-rays along their individual paths via a modified shear-warp algorithm. The algorithm is presented in detail and the results of simulated absorption corrections on samples with various surface modulations are discussed in the context of published experimental results.

The effect of boron in BxGa1−xN/SiC heteroepitaxy was established by X-ray diffraction reciprocal-space maps on symmetric 0002 and asymmetric 11 {overline 2} 4 reflections. The density of screw and edge threading dislocations was quantified in the framework of the mosaic model.

BGaN epilayers with boron contents up to 5.6% were grown on SiC substrates by metal–organic chemical vapor deposition. The effects of boron incorporation on the structural and optical properties were studied by high-resolution X-ray diffraction (XRD), atomic force microscopy (AFM), Raman spectroscopy and photoluminescence (PL) spectroscopy. XRD reciprocal-space maps around the symmetric 0002 and asymmetric 11 {overline 2} 4 reflections allowed evaluation of the lattice constants and lattice mismatch with respect to the underlying substrate. XRD rocking curves and AFM measurements indicated the mosaic microstructure of the epilayer. The impact of boron content on crystallite size, tilt and twist is evaluated and the correlation with threading dislocation density is discussed. The deterioration of optical properties with increasing boron content was assessed by Raman and PL spectroscopy.

Bone material contains a hierarchical network of micro- and nano-cavities and channels, known as the lacuna-canalicular network (LCN), that is thought to play an important role in mechanobiology and turnover. The LCN comprises micrometer-sized lacunae, voids that house osteocytes, and submicrometer-sized canaliculi that connect bone cells. Characterization of this network in three dimensions is crucial for many bone studies. To quantify X-ray Zernike phase-contrast nanotomography data, deep learning is used to isolate and assess porosity in artifact-laden tomographies of zebrafish bones. A technical solution is proposed to overcome the halo and shade-off domains in order to reliably obtain the distribution and morphology of the LCN in the tomographic data. Convolutional neural network (CNN) models are utilized with increasing numbers of images, repeatedly validated by `error loss' and `accuracy' metrics. U-Net and Sensor3D CNN models were trained on data obtained from two different synchrotron Zernike phase-contrast transmission X-ray microscopes, the ANATOMIX beamline at SOLEIL (Paris, France) and the P05 beamline at PETRA III (Hamburg, Germany). The Sensor3D CNN model with a smaller batch size of 32 and a training data size of 70 images showed the best performance (accuracy 0.983 and error loss 0.032). The analysis procedures, validated by comparison with human-identified ground-truth images, correctly identified the voids within the bone matrix. This proposed approach may have further application to classify structures in volumetric images that contain non-linear artifacts that degrade image quality and hinder feature identification.

Synchrotron light sources require X-ray optics with extremely demanding accuracy for the surface profile, with less than 100 nrad slope errors and sub-nanometre height errors. Such errors are challenging to achieve for aspheres using traditional polishing methods. However, post-polishing error correction can be performed using techniques such as ion beam figuring (IBF) to improve optics to the desired quality. This work presents a brief overview of the history of IBF, introduces some of the challenges for obtaining such demanding figure errors, and highlights the work done at several in-house IBF facilities at synchrotron light sources worldwide to obtain state-of-the-art optical quality.

The reaction of titanium(IV) chloride with sodium hexa­fluoro­iso­pro­pox­ide, carried out in hexa­fluoro­iso­propanol, produces titanium(IV) hexa­fluoro­iso­pro­pox­ide, which is a liquid at room temperature. Recrystallization from coordinating solvents, such as aceto­nitrile or tetra­hydro­furan, results in the formation of bis-solvate com­plexes. These com­pounds are of inter­est as possible Ziegler–Natta polymerization catalysts. The aceto­nitrile com­plex had been structurally characterized previously and adopts a distorted octahedral structure in which the nitrile ligands adopt a cis configuration, with nitro­gen lone pairs coordinated to the metal. The low-melting tetra­hydro­furan com­plex has not provided crystals suitable for single-crystal X-ray analysis. However, the structure of chlorido­tris­(hexa­fluoro­isopropoxido-κO)bis­(tetra­hydro­furan-κO)titanium(IV), [Ti(C3HF6O)3Cl(C4H8O)2], has been obtained and adopts a distorted octa­hedral coordination geometry, with a facial arrangement of the alkoxide ligands and adjacent tetra­hydro­furan ligands, coordinated by way of metal–oxygen polar coordinate inter­actions.

It is well known that Hirshfeld surfaces provide an easy and straightforward way of analysing inter­molecular inter­actions in the crystal environment. The use of atomic Hirshfeld surfaces has also demonstrated that such surfaces carry information related to chemical bonds which allow a deeper evaluation of the structures. Here we briefly summarize the approach of atomic Hirshfeld surfaces while further evaluating the kind of information that can be retrieved from them. We show that the analysis of the metal-centre Hirshfeld surfaces from structures refined via Hirshfeld Atom Refinement (HAR) allow accurate evaluation of contacts of type M⋯H, and that such contacts can be related to the overall shape of the surfaces. The com­pounds analysed were tetra­aqua­bis­(3-carb­oxy­propionato)metal(II), [M(C4H3O4)2(H2O)4], for metal(II)/M = manganese/Mn, cobalt/Co, nickel/Ni and zinc/Zn. We also evaluate the sensitivity of the surfaces by an investigation of seemingly flat surfaces through analysis of the curvature functions in the direction of C—C bonds. The obtained values not only demonstrate variations in curvature but also show a correlation with the hybridization of the C atoms involved in the bond.

Herein we report the crystal structures of two ben­zo­di­az­e­pines obtained by reacting N,N'-(4,5-di­amino-1,2-phenyl­ene)bis­(4-methyl­ben­zene­sul­fon­am­ide) (1) or 4,5-(4-methyl­ben­zene­sul­fon­am­ido)­ben­zene-1,2-diaminium dichloride (1·2HCl) with acetone, giving 2,2,4-trimethyl-8,9-bis­(4-methyl­ben­zene­sul­fon­am­ido)-2,3-di­hydro-5H-1,5-ben­zo­di­az­e­pine, C26H30N4O4S2 (2), and 2,2,4-tri­methyl-8,9-bis­(4-methyl­ben­zene­sul­fon­am­ido)-2,3-di­hydro-5H-1,5-ben­zo­di­az­e­pin-1-ium chloride 0.3-hydrate, C26H31N4O4S2+·Cl−·0.3H2O (3). Compounds 2 and 3 were first obtained in attempts to recrystallize 1 and 1·2HCl using acetone as solvent. This solvent reacted with the vicinal di­amines present in the mol­ecular structures, forming a 5H-1,5-ben­zo­di­az­e­pine ring. In the crystal structure of 2, the seven-membered ring of ben­zo­di­az­e­pine adopts a boat-like conformation, while upon protonation, observed in the crystal structure of 3, it adopts an envelope-like conformation. In both crystalline com­pounds, the tosyl­amide N atoms are not in resonance with the arene ring, mainly due to hy­dro­gen bonds and steric hindrance caused by the large vicinal groups in the aromatic ring. At a supra­molecular level, the crystal structure is maintained by a combination of hy­dro­gen bonds and hydro­phobic inter­actions. In 2, amine-to-tosyl N—H⋯O and amide-to-imine N—H⋯N hy­dro­gen bonds can be observed. In contrast, in 3, the chloride counter-ion and water mol­ecule result in most of the hy­dro­gen bonds being of the amide-to-chloride and ammonium-to-chloride N—H⋯Cl types, while the amine inter­acts with the tosyl group, as seen in 2. In conclusion, we report the synthesis of 1, 1·2HCl and 2, as well as their chemical characterization. For 2, two synthetic methods are described, i.e. solvent-mediated crystallization and synthesis via a more efficient and cleaner route as a polycrystalline material. Salt 3 was only obtained as presented, with only a few crystals being formed.

The X-ray crystal structure data of 12-α-fluoro-3β-hy­droxy­olean-28,13β-olide methanol hemisolvate, 2C30H47FO3·CH3OH, (1), and 12-α-fluoro-3β-hy­droxy­taraxer-28,14β-olide methanol hemisolvate, 2C30H47FO3·CH3OH, (2), are described. The fluoro­lactonization of oleanolic acid using SelectfluorTM yielded a mixture of the six-membered δ-lactone (1) and the unusual seven-membered γ-lactone (2) following a 1,2-shift of methyl C-27 from C-14 to C-13.

The cyclic peptide cyclo(Val-Leu-Leu-d-Phe-Pro)2 (peptide 1) was specifically designed for structural chemistry investigations, drawing inspiration from Gramicidin S (GS). Previous studies have shown that Pro residues within 1 adopt a down-puckering conformation of the pyrrolidine ring. By incorporating fluoride-Pro with 4-trans/cis-isomers into 1, an up-puckering conformation was successfully induced. In the current investigation, introducing hy­droxy­prolines with 4-trans/cis-isomer configurations (tHyp/cHyp) into 1 gave cyclo(Val-Leu-Leu-d-Phe-tHyp)2 methanol disolvate monohydrate, C62H94N10O12·2CH4O·H2O (4), and cyclo(Val-Leu-Leu-d-Phe-cHyp)2 monohydrate, C62H94N10O12·H2O (5), respectively. However, the puckering of 4 and 5 remained in the down conformation, regardless of the geometric position of the hydroxyl group. Although the backbone structure of 4 with trans-substitution was asymmetric, the asymmetric backbone of 5 with cis-substitution was unexpected. It is speculated that the anti­cipated influence of stress from the geometric positioning, which was expected to affect the puckering, may have been mitigated by inter­actions between the hydroxyl groups of hy­droxy­proline, the solvent mol­ecules, and peptides.

This work presents observations of symmetry breakages in the intensity distributions of near-zone-axis convergent-beam electron diffraction (CBED) patterns that can only be explained by the symmetry of the specimen and not the symmetry of the unit cell describing the atomic structure of the material. The specimen is an aluminium–copper–tin alloy containing voids many tens of nanometres in size within continuous single crystals of the aluminium host matrix. Several CBED patterns where the incident beam enters and exits parallel void facets without the incident beam being perpendicular to these facets are examined. The symmetries in their intensity distributions are explained by the specimen morphology alone using a geometric argument based on the multislice theory. This work shows that it is possible to deduce nanoscale morphological information about the specimen in the direction of the electron beam – the elusive third dimension in transmission electron microscopy – from the inspection of CBED patterns.

In antiquity, Pb was a common element added in the production of large bronze artifacts, especially large statues, to impart fluidity to the casting process. As Pb does not form a solid solution with pure Cu or with the Sn–Cu alloy phases, it is normally observed in the metal matrix as globular droplets embedded within or in interstitial positions among the crystals of Sn-bronze (normally the α phase) as the last crystallizing phase during the cooling process of the Cu–Sn–Pb ternary melt. The disequilibrium Sn content of the Pb droplets has recently been suggested as a viable parameter to detect modern materials [Shilstein, Berner, Feldman, Shalev & Rosenberg (2019). STAR Sci. Tech. Archaeol. Res. 5, 29–35]. The application assumes a time-dependent process, with a timescale of hundreds of years, estimated on the basis of the diffusion coefficient of Sn in Pb over a length of a few micrometres [Oberschmidt, Kim & Gupta (1982). J. Appl. Phys. 53, 5672–5677]. Therefore, Pb inclusions in recent Sn-bronze artifacts are actually a metastable solid solution of Pb–Sn containing ∼3% atomic Sn. In contrast, in ancient artifacts, unmixing processes and diffusion of Sn from the micro- and nano-inclusions of Pb to the matrix occur, resulting in the Pb inclusions containing a substantially lower or negligible amount of Sn. The Sn content in the Pb inclusions relies on accurate measurement of the lattice parameter of the phase in the Pb–Sn solid solution, since for low Sn values it closely follows Vegard's law. Here, several new measurements on modern and ancient samples are presented and discussed in order to verify the applicability of the method to the detection of modern artwork pretending to be ancient.

Hard X-ray microscopes with 20–30 nm spatial resolution ranges are an advanced tool for the inspection of materials at the nanoscale. However, the limited efficiency of the focusing optics, for example, a Fresnel zone plate (ZP) lens, can significantly reduce the power of a nanoprobe. Despite several reports on ZP lenses that focus hard X-rays with 20 nm resolution – mainly constructed by zone-doubling techniques – a systematic investigation into the limiting factors has not been reported. We report the structural effects on the focusing and imaging efficiency of 20–30 nm-resolution ZPs, employing a modified beam-propagation method. The zone width and the duty cycle (zone width/ring pitch) were optimized to achieve maximum efficiency, and a comparative analysis of the zone materials was conducted. The optimized zone structures were used in the fabrication of Pt-hydrogen silsesquioxane (HSQ) ZPs. The highest focusing efficiency of the Pt-HSQ-ZP with a resolution of 30 nm was 10% at 7 keV and >5% in the range 6–10 keV, whereas the highest efficiency of the Pt-HSQ-ZP with a resolution of 20 nm was realized at 7 keV with an efficiency of 7.6%. Optical characterization conducted at X-ray beamlines demonstrated significant enhancement of the focusing and imaging efficiency in a broader range of hard X-rays from 5 keV to 10 keV, demonstrating the potential application in hard X-ray focusing and imaging.

Source: Streetwise Reports 10/18/2024

Aero Energy Ltd. (AERO:TSXV; AAUGF:OTC; UU3:FRA) has announced significant advancements at its Murmac and Sun Dog uranium projects in Northern Saskatchewan, with the first drill program revealing high-grade uranium potential. Situated near Uranium City on the Athabasca Basin's northern margin, the projects aim to capitalize on basement-hosted uranium deposits similar to high-grade discoveries in the region.

The initial drill campaign completed 16 holes, targeting 12 key areas, with 12 holes yielding anomalous radioactivity. A major highlight is the new high-grade uranium discovery in drill hole M24-017, which intersected 8.4 meters of mineralization at 0.3% U3O8, including assays peaking at 13.8% U3O8 at just 64 meters below surface. The results confirm Aero's exploration model, which focuses on basement-hosted deposits within graphitic structures, a common feature in Athabasca Basin uranium deposits like Arrow and Triple R.

"From the launch of the company in January, we took a very diligent yet aggressive approach to discovery," stated Galen McNamara, CEO of Aero Energy. "The combination of historical data and the results from the first drill program serve as evidence that basement-hosted mineralization akin to the large deposits beneath and adjacent to the Athabasca Basin is present in the area."

The Murmac project spans 25,607 acres and holds a production legacy of approximately 70 million pounds of U3O8. Similarly, the 48,443-acre Sun Dog property hosts the historic Gunnar uranium mine, which once held the title of the world's largest uranium producer. Past exploration focused on fault-hosted mineralization, missing the basement-hosted uranium potential that Aero's recent findings have validated.

Recent exploration efforts included a VTEM Plus survey, flown over 3,350 kilometers, identifying graphite-rich rocks that support Aero's exploration thesis. Additionally, two new occurrences of strong radioactivity were identified at surface-level scout locations: Target A15 showed 60,793 counts per second, and Target P4 displayed 13,533 counts per second. Summer 2024 drilling included 1,550 meters at Murmac and 1,600 meters at Sun Dog, highlighting shallow, high-grade potential in both areas.

In parallel, Aero Energy has announced a CA$2.5 million non-brokered private placement to support further exploration. The proceeds from flow-through units will fund work programs across Murmac, Sun Dog, and the Strike property, with the remaining funds allocated to general working capital.

Why Uranium?

The uranium sector has recently experienced strong growth, largely driven by increasing global demand and efforts to diversify from Russian supply chains. On September 30, The New York Times discussed the resurgence in Western uranium production, highlighting that "uranium mines are ramping up across the West, spurred by rising demand for electricity and federal efforts to cut Russia out of the supply chain." Aero Energy's recent discoveries and forthcoming winter drilling plans at Murmac and Sun Dog reflect this trend, with CEO Galen McNamara remarking, "The combination of historical data and the results from the first drill program serve as evidence that basement-hosted mineralization . . . is present in the area," suggesting strong potential for the Canadian uranium market to contribute to non-Russian nuclear fuel supplies.

Jeff Clark of The Gold Advisor highlighted his continued confidence in the company by stating, "I remain overweight the stock."

On October 9, Reuters reported that demand from U.S. buyers has been on the rise, as "a strong rise in demand from its U.S. customers" pushed Orano's recent plans to expand uranium enrichment in the United States and France. This shift underscores Aero Energy's recent investments in Northern Saskatchewan, where the company has identified high-grade uranium mineralization in both the Murmac and Sun Dog projects, aiming to meet future supply demands with a focus on basement-hosted deposits.

As Forbes reported on October 11, the uranium market experienced renewed momentum after Russian President Vladimir Putin hinted at the possibility of a ban on uranium exports to Western nations. This suggestion "jolted the uranium market," which had been declining after peaking earlier in the year. The price of uranium rebounded to US$83.50 per pound, reflecting rising concerns about potential supply disruptions. Citi analysts noted that “Russia supplies close to 12% of U3O8, 25% of UF6, and 35% of EUP to international markets,” underscoring the challenges that Western nations, particularly the U.S. and Europe, could face in replacing these critical materials. This market dynamic positions uranium companies operating outside of Russia, like those in the Athabasca Basin, to benefit from supply gaps and heightened demand.

MSN reported on October 13 that the UK's nuclear power capacity is set to decrease dramatically in the coming years, with the planned closure of four out of five remaining nuclear plants by 2028. This reduction in capacity is expected to increase pressure on global uranium supplies as demand for nuclear energy continues to rise amid efforts to meet climate goals. The ongoing shift toward low-carbon energy sources, coupled with the planned closures, could create further supply constraints and drive demand for uranium from alternative sources.

Aero's Catalysts

According to the company's October 2024 investor presentation, the ongoing development at Murmac and Sun Dog highlights Aero Energy's strategy to enhance shareholder value by targeting high-grade uranium deposits in underexplored regions. Aero has leveraged recent technology investments, including VTEM Plus aerial surveys, which identified graphite-rich formations favorable for uranium. The exploration efforts build on the CA$7.6 million previously invested by project partners Fortune Bay and Standard Uranium, which has contributed to refining the drill targets. As Aero works with its partners to maximize the impact of this winter's drilling program, the company's strategic location on the north rim of the Athabasca Basin positions it well to expand these discoveries and attract continued investor interest.

The recently announced CA$2.5 million private placement will further strengthen Aero's financial capacity to carry out its targeted drill campaigns and exploration work.

Analyzing Aero

Jeff Clark of The Gold Advisor, in his October 17 update, noted that Aero Energy has "identified more than 70 kilometers of strike to test for high-grade basement-hosted uranium," emphasizing the company's significant exploration potential in a region known for some of the world's richest uranium deposits.

Clark further commented on Aero Energy's recent results, underscoring the importance of drill hole M24-017, which intersected 8.4 meters of uranium mineralization, grading 0.3% U3O8, with assays reaching as high as 13.8% U3O8. He stated, "While not a discovery hole, per se, this hole underscores the company's thesis that these two projects are prospective for the same type of uranium mineralization as Arrow and Triple R." This observation reinforces Aero Energy's exploration model, which targets basement-hosted uranium deposits similar to those found at other significant Athabasca Basin discoveries. [OWNERSHIP_CHART-11173]

Additionally, Clark expressed optimism regarding Aero Energy's current valuation and future prospects, recommending it as a strong buy at current levels. He highlighted his continued confidence in the company by stating, "I remain overweight the stock," suggesting that Aero Energy presents a compelling opportunity for speculative investors in the uranium exploration space.

The recently announced CA$2.5 million private placement was also acknowledged by Clark as a necessary step to fund further exploration activities. While he expressed some caution about potential dilution, he affirmed his overall support for the financing, noting that "its projects are very much worthy of follow-up."

Ownership and Share Structure

According to Refinitiv, management and insiders own 3.11% of Aero Energy. Of those, CEO Galen McNamara has the most at 2.97%. Institutions owns 4.79% with MMCAP Asset Management holding 3.89%. The rest is retail.

Aero has 92.3 million free float shares and a market cap of CA$4.5 million. The 52 week range is CA$0.040–$0.26.

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( Companies Mentioned: AERO:TSXV;AAUGF:OTC;UU3:FRA, )

The USGS is working with federal land management agencies to develop a series of structured science syntheses (SSS) to support National Environmental Policy Act (NEPA) analyses. This new synthesis is the third publication in the SSS series and provides science to support NEPA analyses for agency decisions regarding oil and gas leasing and permitting.

Aero Energy Ltd. (AERO:TSXV; AAUGF:OTC; UU3:FRA) has announced significant advancements at its Murmac and Sun Dog uranium projects in Northern Saskatchewan. Read how this and a CA$2.5-million non-brokered private placement aim the company towards further exploration.

The EcoComplex is a system that recovers all useable products and by-products from a group of private and public partners located in a close-knit defined area. This group of partners works together to use each other�s waste products either as a source of energy (electricity, steam, or heat) or as a raw material for the production of their own product (pallets, lumber, compost, brick shapes/art). The EcoComplex is also focused on making and using �green� energy and on economic development.

Smart Electric North America, LLC is opening its North American headquarters in Conover, NC at 1550 Deborah Herman Road SW. SENA plans to build market share by supplying quality components and finished goods to the top tier lighting companies in the US first; then abroad.

Catawba County has launched a performance dashboard, a program that will be the gateway for hundreds of pieces of data on dozens of topics related to the County government, demographics and quality of life. Catawba County Facts and Figures, offers users a choice of exploring data grouped into eight broad categories.

Chinese maker of products for the textile industry has located its first US manufacturing facility in Conover, creating 78 new jobs.

"Catawba County Facts and Figures" web page, the gateway for hundreds of pieces of data on dozens of topics related to the County government, demographics and quality of life, has been named winner of a 2013 National Association of Counties (NACo) Achievement Award.

In a case originating with a California Highway Patrol officer's pursuit of a vehicle and ultimately entering the driver's home, the Supreme Court ruled Wednesday that police may not enter homes without a warrant for minor crimes.; Credit: Chris Carlson/AP

The U.S. Supreme Court ruled Wednesday that police cannot enter a home without a warrant when pursuing someone for a minor crime.

By a unanimous vote, the court declared that police violated the rights of a California man by pursuing him into his garage for allegedly playing loud music while driving down a deserted two-lane highway late at night.

Writing for the court majority, Justice Elena Kagan said police had no right to enter the man's home without a warrant for such a trivial offense.

"On many occasions, the officer will have good reason to enter – to prevent imminent harms of violence, destruction of evidence, or escape from the home," she wrote. "But when the officer has time to get a warrant, he must do so – even though the misdemeanant fled."

The court's ruling came in the case of Arthur Lange, who was playing loud music in his car late one night, at one point honking his horn several times. A California highway patrol officer, believing Lange was violating a noise ordinance, followed him, and when the motorist slowed to enter his driveway, the officer put on his flashing lights.

Lange, who later said he didn't notice the police car, drove into his garage. The officer, in "hot pursuit," got out of his car and put his foot under the closing garage door sensor to force the door open again. He had no warrant to enter the home, but once inside, he said, he smelled liquor on Lange's breath and arrested him, not only for the noise violation, but also for driving under the influence.

Lange appealed all the way to the Supreme Court, contending that the officer had no right to enter his home without a warrant and that the DUI evidence had been illegally obtained.

The Supreme Court has long held that police may conduct a warrantless search when pursuing a fleeing felon. The question in Lange's case was whether police are free to do the same thing when pursuing someone suspected of a minor offense like playing loud music.

"[P]ursuit of a misdemeanant does not trigger a categorical rule allowing a warrantless home entry," she wrote.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Although there is evidence of harmful health and ecological effects associated with exposure to high doses of chemicals known as hormonally active agents – or endocrine disrupters – little is understood about the harm posed by exposure to the substances at low concentrations, such as those that typically exist in the environment, says a new report from a National Research Council committee.

Nearly 85 percent of the 29 million gallons of petroleum that enter North American ocean waters each year as a result of human activities comes from land-based runoff, polluted rivers, airplanes, and small boats and jet skis, while less than 8 percent comes from tanker or pipeline spills.

The environmental effects of oil and gas exploration and production on Alaska s North Slope have been accumulating for more than three decades, says a new report from the National Academies National Research Council.

Government authorities in the United States and Canada should use the current Dietary Reference Intakes (DRIs) to update nutrition information on food and dietary supplement labels so that consumers can compare products more easily and make informed food choices based on the latest science, says a new report from the Institute of Medicine of the National Academies.

A new report from the National Research Council lays out options NASA could follow to detect more near-Earth objects (NEOs) – asteroids and comets that could pose a hazard if they cross Earths orbit.

Insufficient data on service members exposures to emissions from open-air burn pits for trash on military bases in Iraq and Afghanistan is one of the reasons why it is not possible to say whether these emissions could cause long-term health effects, says a new report from the Institute of Medicine.

The National Academy of Engineering (NAE) has elected 67 new members and 11 foreign associates, announced NAE President C.D. (Dan) Mote Jr. today. This brings the total U.S. membership to 2,250 and the number of foreign associates to 214.

An extensive study by the National Academies of Sciences, Engineering, and Medicine has found that new technologies in genetic engineering and conventional breeding are blurring the once clear distinctions between these two crop-improvement approaches.

Rising levels of noise in the ocean have been identified as a growing concern for the well-being of marine mammals, but other threats such as pollution, climate change, and prey depletion by fisheries may also harm marine mammals and influence their response to additional noise.

A new report from the National Academies of Sciences, Engineering, and Medicine offers a rigorous review of scientific research published since 1999 about what is known about the health impacts of cannabis and cannabis-derived products – such as marijuana and active chemical compounds known as cannabinoids – ranging from their therapeutic effects to their risks for causing certain cancers, diseases, mental health disorders, and injuries.

Good morning. Welcome to the release of the report Preparing for Future Products of Biotechnology, from the National Academies of Sciences, Engineering, and Medicine.

A profusion of biotechnology products is expected over the next five to 10 years, and the number and diversity of new products has the potential to overwhelm the U.S. regulatory system, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A new report by the National Academies of Sciences, Engineering, and Medicine proposes a strategy that the U.S. Environmental Protection Agency (EPA) should use to evaluate the evidence of adverse human health effects from low doses of exposure to chemicals that can disrupt the endocrine system.

A new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine takes a comprehensive look at evidence on the human health effects of e-cigarettes.

The National Academy of Engineering has elected 83 new members and 16 foreign members, announced NAE President C. D. (Dan) Mote, Jr., today.

The emergence of inexpensive small unmanned aircraft systems (sUASs) that operate without a human pilot, commonly known as drones, has led to adversarial groups threatening deployed U.S. forces, especially infantry units.

The National Academy of Sciences elected 84 new members and 21 foreign associates in recognition of their distinguished and continuing achievements in original research.

The National Academy of Engineering has re-elected Gordon R. England, chairman of PFP Cybersecurity, to serve a two-year term as the NAEs chair.

The National Academy of Medicine (NAM) today announced the election of 75 regular members and 10 international members during its annual meeting.

A new report from the National Academies of Sciences, Engineering, and Medicine outlines a research agenda for improving the commercial viability of technologies that turn greenhouse gases from the burning of fossil fuels into useful products such as fuels, construction materials, and chemicals.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine today announced awards for nine new grant projects totaling $3.2 million.

A new report from the National Academies of Sciences, Engineering, and Medicine presents a research roadmap to address gaps and uncertainties in estimating the impacts of proposed changes in truck size and weight limits -- the regulations that set the maximum weights, lengths, and numbers of trailers allowed for trucks on U.S. highways.

The current measles outbreaks in the United States and elsewhere are being fueled by misinformation about the safety of vaccines.