The position- and time-resolved monitoring of a mechanochemical reaction using synchrotron powder X-ray diffraction revealed a position-independent increase rate of product in the jar of a shaker mill.

We investigated the position and time dependence of a mechanochemical reaction induced by ball milling using in situ synchrotron powder X-ray diffraction with changing X-ray irradiation position. The mechanochemical reduction of AgCl with Cu was monitored in situ with the X-rays incident at two different vertical positions on the jar. Our previously developed multi-distance Rietveld method was applied to analyze the in situ diffraction data with a 1 min resolution. Both the vertical and the horizontal sample positions were determined using the sample-to-detector distances from the in situ data. Position dependence was found in the powder spreading and induction time. We reveal that the increase rate of the product is independent of the sample position when measured with a 1 min time resolution, confirming the validity of in situ monitoring of part of the space in a milling jar for a gradual mechanochemical reaction.

Painted artworks represent a significant group of cultural heritage artifacts, which are primarily admired because of their aesthetic quality. Nevertheless, the value of each particular painting depends also on what is known about it. Material investigation of paintings is one of the most reliable sources of information. Materials in painted artworks (i.e. panel, easel and miniature paintings, wall paintings, polychromed sculptures etc.) represent an extensive set of inorganic and organic phases, which are often present in complicated mixtures and exhibit characteristics reflecting their geological genesis (mineral pigments), manufacturing technology (artificial pigments), diverse biological nature (binders or dyes) or secondary changes (degradation or intentional later interventions). The analyses of paintings are often made challenging by the heterogeneous nature and minute size of micro-samples or, in some cases, even by the impossibility of sampling due to the preciousness, fragility or small dimensions of the artwork. This review demonstrates the successful implementation of laboratory X-ray powder micro-diffraction for material investigation of paintings, illustrating its efficiency for mineralogical analysis of (i) earth-based materials indicating the provenance of paintings, (ii) copper-based pigments pointing to their origin, and (iii) products of both salt corrosion and saponification enabling one to reveal the deterioration and probable original appearance of artworks.

In powder diffraction, lattice symmetry relaxation causes a peak to split into several components which are not resolved if the degree of desymmetrization is small (pseudosymmetry). Here the equations which rule peak splitting are elaborated for the six minimal symmetry transitions, showing that the resulting split peaks are generally broader and asymmetric, and suffer an hkl-dependent displacement with respect to the high-symmetry parent peak. These results will be of help in Rietveld refinement of pseudosymmetric structures where an exact interpretation of peak deformation is required.

xrdPlanner is a software package designed to aid in the planning and preparation of powder X-ray diffraction and total scattering beam times at synchrotron facilities. Many modern beamlines provide a flexible experimental setup and may have several different detectors available. In combination with a range of available X-ray energies, it often makes it difficult for the user to explore the available parameter space relevant for a given experiment prior to the scheduled beam time. xrdPlanner was developed to provide a fast and straightforward tool that allows users to visualize the accessible part of reciprocal space of their experiment at a given combination of photon energy and detector geometry. To plan and communicate the necessary geometry not only saves time but also helps the beamline staff to prepare and accommodate for an experiment. The program is tailored toward powder X-ray diffraction and total scattering experiments but may also be useful for other experiments that rely on an area detector and for which detector placement and achievable momentum-transfer range are important experimental parameters.

Maximizing the performance of crystal monochromators is a key aspect in the design of beamline optics for diffraction-limited synchrotron sources. Temperature and deformation of cryo-cooled crystals, illuminated by high-power beams of X-rays, can be estimated with a purely analytical model. The analysis is based on the thermal properties of cryo-cooled silicon crystals and the cooling geometry. Deformation amplitudes can be obtained, quickly and reliably. In this article the concept of threshold power conditions is introduced and defined analytically. The contribution of parameters such as liquid-nitro­gen cooling efficiency, thermal contact conductance and interface contact area of the crystal with the cooling base is evaluated. The optimal crystal illumination and the base temperature are inferred, which help minimize the optics deformation. The model has been examined using finite-element analysis studies performed for several beamlines of the Diamond-II upgrade.

The demand for powder X-ray diffraction analysis continues to increase in a variety of scientific fields, as the excellent beam quality of high-brightness synchrotron light sources enables the acquisition of high-quality measurement data with high intensity and angular resolution. Synchrotron powder diffraction has enabled the rapid measurement of many samples and various in situ/operando experiments in nonambient sample environments. To meet the demands for even higher throughput measurements using high-energy X-rays at SPring-8, a high-throughput and high-resolution powder diffraction system has been developed. This system is combined with six sets of two-dimensional (2D) CdTe detectors for high-energy X-rays, and various automation systems, including a system for automatic switching among large sample environmental equipment, have been developed in the third experimental hutch of the insertion device beamline BL13XU at SPring-8. In this diffractometer system, high-brilliance and high-energy X-rays ranging from 16 to 72 keV are available. The powder diffraction data measured under ambient and various nonambient conditions can be analysed using Rietveld refinement and the pair distribution function. Using the 2D CdTe detectors with variable sample-to-detector distance, three types of scan modes have been established: standard, single-step and high-resolution. A major feature is the ability to measure a whole powder pattern with millisecond resolution. Equally important, this system can measure powder diffraction data with high Q exceeding 30 Å−1 within several tens of seconds. This capability is expected to contribute significantly to new research avenues using machine learning and artificial intelligence by utilizing the large amount of data obtained from high-throughput measurements.

The crystal structure of a new 1:1 cocrystal of carbamazepine and S-naproxen (C15H12N2O·C14H14O3) was solved from powder X-ray diffraction (PXRD). The PXRD pattern was measured at the high-resolution beamline CRISTAL at synchrotron SOLEIL (France). The structure was solved using Monte Carlo simulated annealing, then refined with Rietveld refinement. The positions of the H atoms were obtained from density functional theory (DFT) ground-state calculations. The symmetry is ortho­rhom­bic with the space group P212121 (No. 19) and the following lattice parameters: a = 33.5486 (9), b = 26.4223 (6), c = 5.3651 (10) Å and V = 4755.83 (19) Å3.

Spectroscopic data, particularly diffraction data, are essential for materials characterization due to their comprehensive crystallographic information. The current crystallographic phase identification, however, is very time consuming. To address this challenge, we have developed a real-time crystallographic phase identifier based on a convolutional self-attention neural network (CPICANN). Trained on 692 190 simulated powder X-ray diffraction (XRD) patterns from 23 073 distinct inorganic crystallographic information files, CPICANN demonstrates superior phase-identification power. Single-phase identification on simulated XRD patterns yields 98.5 and 87.5% accuracies with and without elemental information, respectively, outperforming JADE software (68.2 and 38.7%, respectively). Bi-phase identification on simulated XRD patterns achieves 84.2 and 51.5% accuracies, respectively. In experimental settings, CPICANN achieves an 80% identification accuracy, surpassing JADE software (61%). Integration of CPICANN into XRD refinement software will significantly advance the cutting-edge technology in XRD materials characterization.

In recent years, there is a significant interest from the crystallographic and materials science communities to have access to raw diffraction data. The effort in archiving raw data for access by the user community is spearheaded by the International Union of Crystallography (IUCr) Committee on Data. In materials science, where powder diffraction is extensively used, the challenge in archiving raw data is different to that from single crystal data, owing to the very nature of the contributions involved. Powder diffraction (X-ray or neutron) data consist of contributions from the material under study as well as instrument specific parameters. Having raw powder diffraction data can be essential in cases of analysing materials with poor crystallinity, disorder, micro structure (size/strain) etc. Here, the initiative and progress made by the International Centre for Diffraction Data (ICDDR) in archiving powder X-ray diffraction raw data in the Powder Diffraction FileTM (PDFR) database is outlined. The upcoming 2025 release of the PDF-5+ database will have more than 20 800 raw powder diffraction patterns that are available for reference.

The crystal structure of the title compound {systematic name: (4S,4aS,5aR,12aR)-4,7-bis­(di­methyl­amino)-9-[(2,2-di­methyl­propyl­amino)­meth­yl]-1,10,11,12a-tetra­hydroxy-3,12-dioxo-4a,5,5a,6-tetra­hydro-4H-tetra­cene-2-carb­oxamide dihydrate, C29H40N4O7·2H2O} has been solved and refined using synchrotron X-ray powder diffraction data: it crystallizes in space group R3 with a = 24.34430 (7), c = 14.55212 (4) Å, V = 7468.81 (2) Å3 and Z = 9. Most of the hydrogen bonds are intra­molecular, but two classical N—H⋯O inter­molecular hydrogen bonds (along with probable weak C—H⋯O and C—H⋯N hydrogen bonds) link the mol­ecules into a three-dimensional framework. The framework contains voids, which contain disordered water mol­ecules. Keto–enol tautomerism is apparently important in this mol­ecule, and the exact mol­ecular structure is ambiguous.

In addressing the challenges faced by laboratories and universities with limited (or no) cryo-electron microscopy (cryo-EM) infrastructure, the ESRF, in collaboration with the Grenoble Institute for Structural Biology (IBS), has implemented the cryo-EM Solution-to-Structure (SOS) pipeline. This inclusive process, spanning grid preparation to high-resolution data collection, covers single-particle analysis and cryo-electron tomography (cryo-ET). Accessible through a rolling access route, proposals undergo scientific merit and technical feasibility evaluations. Stringent feasibility criteria demand robust evidence of sample homogeneity. Two distinct entry points are offered: users can either submit purified protein samples for comprehensive processing or initiate the pipeline with already vitrified cryo-EM grids. The SOS pipeline integrates negative stain imaging (exclusive to protein samples) as a first quality step, followed by cryo-EM grid preparation, grid screening and preliminary data collection for single-particle analysis, or only the first two steps for cryo-ET. In both cases, if the screening steps are successfully completed, high-resolution data collection will be carried out using a Titan Krios microscope equipped with a latest-generation direct electron counting detector coupled to an energy filter. The SOS pipeline thus emerges as a comprehensive and efficient solution, further democratizing access to cryo-EM research.

Recent developments in synchrotron radiation facilities have increased the amount of data generated during acquisitions considerably, requiring fast and efficient data processing techniques. Here, the application of dense neural networks (DNNs) to data treatment of X-ray diffraction computed tomography (XRD-CT) experiments is presented. Processing involves mapping the phases in a tomographic slice by predicting the phase fraction in each individual pixel. DNNs were trained on sets of calculated XRD patterns generated using a Python algorithm developed in-house. An initial Rietveld refinement of the tomographic slice sum pattern provides additional information (peak widths and integrated intensities for each phase) to improve the generation of simulated patterns and make them closer to real data. A grid search was used to optimize the network architecture and demonstrated that a single fully connected dense layer was sufficient to accurately determine phase proportions. This DNN was used on the XRD-CT acquisition of a mock-up and a historical sample of highly heterogeneous multi-layered decoration of a late medieval statue, called `applied brocade'. The phase maps predicted by the DNN were in good agreement with other methods, such as non-negative matrix factorization and serial Rietveld refinements performed with TOPAS, and outperformed them in terms of speed and efficiency. The method was evaluated by regenerating experimental patterns from predictions and using the R-weighted profile as the agreement factor. This assessment allowed us to confirm the accuracy of the results.

Portland cements (PCs) and cement blends are multiphase materials of different fineness, and quantitatively analysing their hydration pathways is very challenging. The dissolution (hydration) of the initial crystalline and amorphous phases must be determined, as well as the formation of labile (such as ettringite), reactive (such as portlandite) and amorphous (such as calcium silicate hydrate gel) components. The microstructural changes with hydration time must also be mapped out. To address this robustly and accurately, an innovative approach is being developed based on in situ measurements of pastes without any sample conditioning. Data are sequentially acquired by Mo Kα1 laboratory X-ray powder diffraction (LXRPD) and microtomography (µCT), where the same volume is scanned with time to reduce variability. Wide capillaries (2 mm in diameter) are key to avoid artefacts, e.g. self-desiccation, and to have excellent particle averaging. This methodology is tested in three cement paste samples: (i) a commercial PC 52.5 R, (ii) a blend of 80 wt% of this PC and 20 wt% quartz, to simulate an addition of supplementary cementitious materials, and (iii) a blend of 80 wt% PC and 20 wt% limestone, to simulate a limestone Portland cement. LXRPD data are acquired at 3 h and 1, 3, 7 and 28 days, and µCT data are collected at 12 h and 1, 3, 7 and 28 days. Later age data can also be easily acquired. In this methodology, the amounts of the crystalline phases are directly obtained from Rietveld analysis and the amorphous phase contents are obtained from mass-balance calculations. From the µCT study, and within the attained spatial resolution, three components (porosity, hydrated products and unhydrated cement particles) are determined. The analyses quantitatively demonstrate the filler effect of quartz and limestone in the hydration of alite and the calcium aluminate phases. Further hydration details are discussed.

With the emergence of ultrafast X-ray sources, interest in following fast processes in small molecules and macromolecules has increased. Most of the current research into ultrafast structural dynamics of macromolecules uses X-ray free-electron lasers. In parallel, small-scale laboratory-based laser-driven ultrafast X-ray sources are emerging. Continuous development of these sources is underway, and as a result many exciting applications are being reported. However, because of their low flux, such sources are not commonly used to study the structural dynamics of macromolecules. This article examines the feasibility of time-resolved powder diffraction of macromolecular microcrystals using a laboratory-scale laser-driven ultrafast X-ray source.

A neutron time-of-flight (TOF) powder diffractometer with a continuous wide-angle array of detectors can be electronically focused to make a single pseudo-constant wavelength diffraction pattern, thus facilitating angle-dependent intensity corrections. The resulting powder diffraction peak profiles are affected by the neutron source emission profile and resemble the function currently used for TOF diffraction.

The upgrade of the Swiss Light Source, called SLS 2.0, necessitates comprehensive updates to all 18 user front ends. This upgrade is driven by the increased power of the synchrotron beam, reduced floor space, changing source points, new safety regulations and enhanced beam properties, including a brightness increase by up to a factor of 40. While some existing front-end components are being thoroughly refurbished and upgraded for safety reasons, other components, especially those designed to tailor the new synchrotron beam, are being completely rebuilt. These new designs feature innovative and enhanced cooling systems to manage the high-power load and meet new requirements such as mechanical stability and compact footprints.

BuzzAR has launched BuzzPay,...

Source: Streetwise Reports 11/05/2024

Revolve Renewable Power Corp. (TSXV:REVV; OTCQB:REVVF) released its strongest financial results since going public in 2022, those for fiscal year 2024 (FY24) ended June 30, 2024, the company announced in a news release.

"FY24 marked significant progress for the company as it continues its transition to an owner and operator of renewable energy projects, incorporating a focus on building long-term recurring revenues and cash flow for the business," the release noted.

This company, headquartered in British Columbia, develops utility-scale solar, wind, hydro, and battery storage projects in North America. The Revolve Renewable Business Solutions division installs and operates sub-20-megawatt, behind-the-meter distributed generation assets.

FY24 revenue of US$6.7 million (US$6.7M) exceeded guidance by 35% and surpassed FY23 revenue by 509%. Significant contributors to total revenue for this latest fiscal year were deferred revenues and milestone payments of US$4.25M from the sale of the Bouse and Parker projects to ENGIE. Completion of the WindRiver Power Corp. acquisition in February added $671,738 of total revenue. In the future, WindRiver business is projected to generate recurring revenue of US$1.8M on a 12-month basis.

Adjusted EBITDA in FY24 also was up year over year (YOY), at US$2.7M versus US$1.5M of guidance and (US$2.1M) in FY23.

The gross margin in FY24 was strong at 96%. This was due to increased recurring revenues from the distributed generation portfolio, low operating costs of the rooftop solar projects therein, the addition of operating utility-scale projects in Canada, and sale proceeds from utility-scale projects in the U.S.

FY24 resulted in a net income of US$2.6M, whereas FY23 saw a net loss of US$2.3M.

As for the balance sheet, at FY24's end, Revolve had US$3.2M in cash. Total liabilities were US$10M, up from US$2.6M in FY23 due to nonrecourse debt taken on via the WindRiver acquisition plus additional loans granted by RE Royalties Ltd., a Canadian royalty finance company, throughout FY24.

Operational Progress Made

Operationally, in FY24, according to the release, Revolve generated 8,048,729 kilowatt-hours (8,048,729 kWh) of renewable energy, up 397% from 1,618,456 kWH the year before. The main drivers were continuing output from the company's operational distributed generation portfolio and power produced at the Box Springs wind farm.

During the 15 months between July 1, 2023, and Oct. 31, 2024, Revolve added of 76.1 megawatts (76.1 MW) net of development hydro projects in Canada through the WindRiver acquisition and 480 MW of new greenfield development projects in Canada and the U.S. These took the total of Revolve's utility-scale projects under development to 3,015 MW.

The company made significant progress on its 20 megawatt (20 MW)/80 MWh Vernal BESS battery storage project and 49.5 MW Primus wind projects, now in the late stage of development and expected to reach ready-to-build status at the end of 2025 (2025E).

Revolve is still building its two distributed generation assets in Mexico, totaling 3.45 MW. Permitting work continues on the 3 MW CHP project continues, and the final commissioning of the 450-KW-peak rooftop solar project is taking place.

The distributed generation project pipeline remains at about 150 MW, and efforts are ongoing to sign additional power purchase agreements for new projects from it.

Also, Revolve recently announced its acquisition of a 30-MW-peak solar development project in Alberta, Canada, and expects a 20-MW-peak first phase will be ready for construction by 2025E.

Independent Power Producer

Revolve is a revenue-generating, renewable-focused independent power producer formed in 2012 to capitalize on the growing global demand for renewable power, according to its October 2024 Corporate Presentation.

The company began as solely a developer of utility-scale projects, a line of business that provides investors access to higher returns. Currently, the company has two projects under construction, the ones in Mexico and 3,000-plus MW worth of projects in development in Canada, the U.S., and Mexico. To date, Revolve has developed and sold more than 1,550 MW of utility-scale projects and is now targeting 5,000 MW under development.

Today, Revolve is also an owner-operator of renewable energy distribution generation projects that provide recurring revenue and cash flow via long-term power purchase agreements. Currently, the portfolio contains 150-plus MW of generation projects in Canada and Mexico. The company will continue expanding this line of business through organic growth and mergers and acquisitions (M&A) activity.

Revolve's management team has a successful track record in taking renewable energy projects from greenfield to ready-to-build status and in selling them to large operators. Collectively, it has generated about US$23M in revenue historically from the sale of 1,550 MW of development assets and has raised US$10.3M in equity capital.

Significant Sector Growth Forecasted

The transition to net zero emissions continues driving the renewable energy industry after nearly 200 countries at the COP28 UN Climate Change Conference in December 2023 pledged to triple global capacity by the end of this decade. In a report last month, the International Energy Agency (IEA) forecasted global renewable capacity reaching almost 11,000 gigawatts (GW) by then, reflecting 2.7 times growth, falling short of the goal.

Solar Photovoltaic (PV) Power: Of the growth predicted for renewable energy during this period, solar photovoltaic power will make up 80% of it, according to the IEA, due to its increasing economic attractiveness in most countries.

"At the end of this decade, solar PV is set to become the largest renewable source, surpassing both wind and hydropower," the agency wrote. Hydropower currently is the top source worldwide.

Wind Power: Wind power will account for 15% of all forecasted renewable capacity growth, noted the IEA. This sector has suffered recently from macroeconomic factors and supply chain difficulties, but it is expected to recover. Global wind capacity is projected to expand between 2024 and 2029 at double the rate it grew between 2017 and 2023.

"Policy changes concerning auction design, permitting, and grid connection in Europe, the United States, India, and other emerging and developing economies are expected to enhance project bankability and help the wind sector recover from recent financial difficulties," the article noted.

Hydropower: As for hydropower, capacity is continuing to grow consistently, noted the IEA, due primarily to efforts by China, India, Africa and the Association of Southeast Asian Nations region.

In North America, the U.S. is expected to be the biggest market for hydropower, according to Mordor Intelligence. Between 2024 and 2029, the market is forecasted to expand at a compound annual growth rate of 1%, spurred by demand for renewable energy and investments in hydropower plants.

"The technological advancements in efficiency and decrease in the production cost of hydropower projects are expected to create ample opportunity for market players," the article noted.

The Catalysts: Results of Business as Usual

As Revolve continues effecting its growth strategies, numerous potential stock-boosting events should occur, according to its corporate presentation.

Catalysts resulting from ongoing efforts include further M&A transactions, signing additional power purchase agreements, and bringing new distributed generation projects online. wo increasing revenue and cash flow growth.

Specifically, the company reaching its goals of advancing 70 MW of the BESS and Wind projects to ready-to-build status as well as 30 MW of solar in Canada, in 2025. These have the potential to generate material revenue and add value.

Another catalyst is Revolve achieving ready-to-build status for its two wind projects in Mexico, the 103 MW El 24 and the 400 MW Presa Nueva. The company's ultimate goal with these assets is to partner on or sell them. [OWNERSHIP_CHART-10982]

Finally, payments toward the remaining US$45–55M balance still owed to Revolve regarding the ENGIE sale could boost its stock.

Ownership and Share Structure

About 60% of the company is owned by insiders and management, Revolve said.

Top shareholders include Joseph O'Farrell with 13.21%, Roger Norwich with 12.15%, the CEO and Director Stephen Dalton with 6.01%, President and Director Omar Bojorquez with 4.82%, and Jonathan Clare with 1.84%, according to Reuters and the company.

The rest is retail.

Revolve has a market cap of CA$17.96M. It has 63.04M outstanding shares and 38.75M free float traded shares. Its 52-week high and low are CA$0.50 and CA$0.21 per share, respectively.

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Important Disclosures:

1. As of the date of this article, officers and/or employees of Streetwise Reports LLC (including members of their household) own securities of Revolve Renewable Power Corp.
2. Doresa Banning wrote this article for Streetwise Reports LLC and provides services to Streetwise Reports as an independent contractor.
3. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.

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( Companies Mentioned: TSXV:REVV;OTCQB:REVVF, )

Dr. Jill Baron, Director of the Powell Center, will present a webinar on how to develop a strong proposal for Working Group on November 19th, 2024, at 11am MT/1pm ET.

"This is a petty, partisan power grab that is absolutely retaliation towards my office," Arizona Democratic Secretary of State Katie Hobbs says of the new law.; Credit: Ross D. Franklin/AP

Arizona Republicans have stripped the secretary of state's office — currently held by a Democrat — of the right to defend the state's election laws in court, or choose not to, a change enacted as part of Arizona's newly signed budget.

The spending blueprint that Gov. Doug Ducey signed into law Wednesday declares that the attorney general — currently a position occupied by Republican Mark Brnovich — has sole authority over election-related litigation.

If the secretary of state and attorney general were to disagree over a legal strategy when Arizona election laws are challenged, the new law states that "the authority of the attorney general to defend the law is paramount."

Republicans also adopted language stating it's their intent for the law to apply through Jan. 2, 2023, coinciding with the end of Democrat Katie Hobbs' term as secretary of state.

Hobbs, the top election official in Arizona who's now running for governor, says her lawyers are looking at whether this change violates the Arizona Constitution.

"This is a petty, partisan power grab that is absolutely retaliation towards my office," Hobbs said. "It's clear by the fact that it ends when my term ends. ... It is at best legally questionable, but at worst, likely unconstitutional."

Republicans have generally cast the law as a cost-saving measure, citing Hobbs and Brnovich's frequent disagreements over how to defend state election laws that have been challenged in court. In 2020, Hobbs filed complaints with the state bar against Brnovich and other lawyers in his office.

Other election provisions in the budget

The budget includes a number of other election provisions, and it comes weeks after Republicans enacted new restrictions on early voting in the state, and as a controversial review of 2020 election results in Maricopa County continues.

Here are some of the other election-related measures in the budget:

• New laws could soon require watermarks, QR codes and other security measures to be printed on ballots.
• There's a new mandate to inspect state and county voter registration databases and create a report on voters who cast federal-only ballots — an option available to Arizonans who don't show proof of citizenship to register to vote in the state, but are still allowed to register under federal law.
• And a new task force would investigate alleged social media bias as an unreported in-kind political contribution.

The ballot security measures, though not mandated by law in the budget, have the potential to be the most cumbersome and costly requirement for county election officials to implement.

The budget amendment provides a list of 10 "ballot fraud countermeasures" for counties to choose from — features like holographic foil, background designs similar to those found on banknotes and ultraviolet or infrared ink. If mandated, counties would have to implement any combination of at least three features from the list on their ballots. The budget provides $12 million to pay for those features, to be split among Arizona's 15 counties.

"By everyone's admission, there is only one company that can do any of this," said Jennifer Marson, executive director of the Arizona Association of Counties. "And so now, we can't have a competitive bid process or a traditional procurement process at the county or state level to use these countermeasures because we're locked into one company."

That company is Authentix, a Texas-based firm that provided Republican Rep. Mark Finchem with a sample ballot that included watermarks, QR codes and other security measures. Finchem had the sample ballot on display at the Capitol in March. According to the Yellow Sheet Report, it could be five times more expensive to print ballots with those security measures as it is to print paper ballots currently in use.

Marson said Finchem has acknowledged the security levels required of companies in the budget amendment could only be met by Authentix, and has vowed to mandate the ballot security measures in the "very near future."

Finchem defended the company in a brief email. He wrote that Authentix "offers these countermeasures to governments around the world for document and tax stamp security."

As the budget was being considered, Democrats like Sen. Tony Navarrete said the amendment is part of a broad effort to solidify conspiracy theories of election fraud.

"It's important for us to make sure we vote down conspiracy-laced amendments that are going to hurt the integrity of our election system in the state of Arizona and encourage other states to have these bad copycat laws spread like wildfire," he said.

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

Operationally, the company's renewable energy generation was up 397% year over year. Discover the many potential catalysts for the stock.

Cars make their way toward downtown Los Angeles on April 22. California could regain the right to set its own vehicle emissions standards after the Environmental Protection Agency announced it was moving to curb a Trump-era policy that sought to erode the state's previously-held power.; Credit: Mario Tama/Getty Images

The Environmental Protection Agency (EPA) said on Monday it is preparing to restore California's right to set its own vehicle emissions standards, in a widely anticipated reversal of Trump-era policies.

The decision, which will take several months to be finalized, reaffirms the Golden State's powerful position as an environmental regulator after the Trump administration had in 2019 sought to remove California's powers to set its own emissions standards.

It also sets the stage for negotiations over how strict federal vehicle standards will be under President Biden.

"I am a firm believer in California's long-standing statutory authority to lead," EPA administration Michael Regan said in a statement.

"The 2019 decision to revoke the state's waiver to enforce its greenhouse gas pollution standards for cars and trucks was legally dubious and an attack on the public's health and wellbeing," he added.

The EPA will be accepting public comment until July 6 as part of the process of reversing the Trump-era rule.

The populous, car-loving state has been waging a battle against smog for decades.

And in recognition of that history, the EPA has long granted a waiver giving the state the authority to set its own standards for vehicle emissions, as long as they're more stringent than the national regulations.

That's an unusual exemption — other states can't set their own policies, although they can choose to adopt California's standards as their own.

Between California and the states that follow suit, about a third of the U.S. new car market is covered by the Golden State's policies, giving California regulators a remarkable amount of sway over the auto industry.

However, when the Trump administration weakened federal clean car standards, it also sought to revoke the waiver allowing California to set a higher bar.

That triggered a legal battle and divided the auto industry, with some carmakers choosing to side with California and voluntarily accept somewhat stricter vehicle emissions standards while the rest backed the Trump administration.

After Biden won the White House, every major automaker eventually dropped their support for the now-doomed Trump position.

The EPA has now started the process of reversing Trump's decision. The Department of Transportation last week also proposed to "wipe clean the regulatory slate," indicating that the National Highway Traffic Safety Administration would no longer seek to block state emissions standards, as it had under Trump.

It's still not clear what federal regulations on vehicle emissions and fuel economy will be under the Biden administration. Some environmental groups and progressive lawmakers are pushing for the reinstatement of the Obama-era standards, with more ambitious targets to follow.

The auto industry, meanwhile, is calling for standards midway between the Obama-era and Trump-era policies.

The EPA says it will propose new fuel economy rules in July.

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

Micromax forays in the race of in-house mobile launcher driven by Machine Learning and AI to enhance the user experience.

Catawba County Home Health is empowering older adults to lower their risk of falling through a new service called Smart Moves.

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.

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