This study presents the synthesis, characterization and Hirshfeld surface analysis of 1-[6-bromo-2-(3-bromo­phen­yl)-1,2,3,4-tetra­hydro­quinolin-4-yl]pyrrolidin-2-one, C19H18Br2N2O. In the title compound, the pyrrolidine ring adopts a distorted envelope configuration. In the crystal, mol­ecules are linked by inter­molecular N—H⋯O, C—H⋯O and C—H⋯Br hydrogen bonds, forming a three-dimensional network. In addition, pairs of mol­ecules along the c axis are connected by C—H⋯π inter­actions. According to a Hirshfeld surface study, H⋯H (36.9%), Br⋯H/H⋯Br (28.2%) and C⋯H/H⋯C (24.3%) inter­actions are the most significant contributors to the crystal packing.

The title mol­ecule, C25H23BrN2O2, adopts a cup shaped conformation with the distinctly ruffled imidazolidine ring as the base. In the crystal, weak C—H⋯O hydrogen bonds and C—H⋯π(ring) inter­actions form helical chains of mol­ecules extending along the b-axis direction that are linked by additional weak C—H⋯π(ring) inter­actions across inversion centres. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (51.0%), C⋯H/H⋯C (21.3%), Br⋯H/H⋯Br (12.8%) and O⋯H/H⋯O (12.4%) inter­actions. The volume of the crystal voids and the percentage of free space were calculated to be 251.24 Å3 and 11.71%, respectively, showing that there is no large cavity in the crystal packing. Evaluation of the electrostatic, dispersion and total energy frameworks indicate that the stabilization is dominated by the dispersion energy.

The mercury(II) halide complex [1,3-di-tert-butyl-2,4-bis­(tert-butyl­amino)-1,3,2λ5,4λ5-di­aza­diphosphetidine-2,4-diselone-κ2Se,Se']di­iodido­mercury(II) N,N-di­methyl­formamide monosolvate, [HgI2(C16H38N4P2Se2)]·C3H7NO or (1)HgI2, 2, containing cis-[(tBuNH)(Se)P(μ-NtBu)2P(Se)(NHtBu)] (1) was synthesized and structurally characterized. The crystal structure of 2 confirms the chelation of chalcogen donors to HgI2 with a natural bite angle of 112.95 (2)°. The coordination geometry around mercury is distorted tetra­hedral as indicated by the τ4 geometry index parameter (τ4 = 0.90). In the mercury complex, the exocyclic tert-butyl­amido substituents are arranged in an (endo, endo) fashion, whereas in the free ligand (1), the exocyclic substituents are arranged in an (exo, endo) pattern. Compound 2 displays non-classical N—H⋯O hydrogen-bonding inter­actions with the solvent N,N-di­methyl­formamide. These inter­actions may introduce geometrical distortion and deviation from an ideal geometry. An isostructural HgBr2 analogue containing cis-[(tBuNH)(S)P(μ-NtBu)2P(S)(NHtBu)] was also synthesized and structurally characterized, CIF data for the compound being presented as supporting information.

In crystallographic texture analysis, ensuring that sample directions are preserved from experiment to the resulting orientation distribution is crucial to obtain physical meaning from diffraction data. This work details a procedure to ensure instrument and sample coordinates are consistent when analyzing diffraction data with a Rietveld refinement using the texture analysis software MAUD. A quartz crystal is measured on the HIPPO diffractometer at Los Alamos National Laboratory for this purpose. The methods described here can be applied to any diffraction instrument measuring orientation distributions in polycrystalline materials.

High-repetition-rate free-electron lasers impose stringent requirements on the thermal deformation of beamline optics. The Shanghai HIgh-repetition-rate XFEL aNd Extreme light facility (SHINE) experiences high average thermal power and demands wavefront preservation. To deeply study the thermal field of the first reflection mirror M1 at the FEL-II beamline of SHINE, thermal analysis under a photon energy of 400 eV was executed by fluid and solid heat transfer method. According to the thermal analysis results and the reference cooling water temperature of 30 °C, the temperature of the cooling water at the flow outlet is raised by 0.15 °C, and the wall temperature of the cooling tube increases by a maximum of 0.5 °C. The maximum temperature position of the footprint centerline in the meridian direction deviates away from the central position, and this asymmetrical temperature distribution will directly affect the thermal deformation of the mirror and indirectly affect the focus spot of the beam at the sample.

The agreement would substantially increase the number of items collected for recycling across Catawba County, with further expansion of items collected as needed over time; begin �single stream� collection of recyclable commodities so recycled materials would no longer be required to be separated at curbside; increase Republic Services� investment in Catawba County by $13 million; and protect more than 150 local jobs.

A new County Solid Waste Franchise with Republic Services (formerly known as GDS), effective July 1, is bringing expanded recycling, new fee schedule, services.

Some institutions have scrapped Columbus Day or switched to celebrating Indigenous Peoples' Day. One New Jersey school district came up with a new solution: eliminate all holiday names.; Credit: Olesya Semenov/EyeEm via Getty Images

Memorial Day. Thanksgiving. Labor Day.

You may be used to seeing your calendar punctuated by the various holidays that occur throughout the year.

But on one New Jersey school district's calendar, each one of these days will be listed, simply, as "day off."

It all started when the school board in Randolph Township voted to change Columbus Day to Indigenous Peoples' Day. Some residents were outraged, so the board said that instead it would wipe holiday names from the school calendar altogether while still observing the days off.

"The overwhelming majority of the township population feels that they've [Randolph Township school board members] grossly overstepped their bounds, that they're completely pushing their own personal, political ideologies," Randolph resident Tom Tatem told Fox News. He started a petition calling on school officials to resign.

Institutions across the country are wrestling with the question of what to do with Columbus Day.

Critics have derided the idea of celebrating the Italian explorer, who perpetrated violence on Native Americans when he arrived in the United States. Boosters say it is critical to recognize the contributions of Christopher Columbus, and that Italian-Americans have historically faced discrimination.

Some places have switched to marking Indigenous Peoples' Day in recognition of the Native Americans who occupied the United States long before European explorers like Columbus arrived.

Randolph Township arrived at a novel solution to this problem: eliminate every holiday name to avoid taking a side.

The goal appears to have been to sidestep the debate over Columbus Day, but the Randolph Township school system instead found itself squarely in it, and opponents of the move have called on school officials to resign.

The Randolph Board of Education is now scheduled to convene Monday for a special meeting to reconsider its plan to remove holiday names from the school calendar.

What's happening in New Jersey

In May, the Randolph school board voted unanimously to replace Christopher Columbus Day with Indigenous Peoples' Day.

Some parents grew angry with the decision, but instead of reverting back to the old calendar, the board moved in early June to scrap all holiday names from the school calendar, not giving preference to either one of the October celebrations.

"If we don't have anything on this calendar, then we don't have to have anyone [with] hurt feelings," Randolph school board member Dorene Roche said during a June 10 public meeting, according to NJ.com.

The backlash has only grown.

A petition calling on Randolph Township Schools superintendent Jennifer Fano and members of the board of education to resign has topped 4,000 signatures. "They represent everything that is wrong in education today and are completely incompetent in every aspect of their role," the petition says.

For its part, the school board acknowledged the public outcry but said its decision was misconstrued by some people.

A press release issued by the Randolph board of education on Sunday clarified that the holidays will still be observed as days off and that their decision was not meant to dishonor "the great veterans and the heroes" after which several of those holidays are named.

"These State, Federal and other holidays have not been cancelled or taken away by this Board of Education as some are falsely claiming," the board said. "Everyone is still encouraged to celebrate them in whatever way they deem appropriate."

Matthew Pfouts, director of communications and digital media for the Randolph Township Schools, told NPR the board has no further comment.

Changing views on holidays

On the national level, Columbus Day remains a federal holiday.

But a number of states, including Alaska and Virginia, as well as some cities either observe Indigenous Peoples' Day as a holiday or celebrate it in some way.

The movement away from Columbus Day has not come without controversy.

The New York City Department of Education tried to rename Columbus Day over objections and eventually settled on marking a holiday called "Italian Heritage Day/Indigenous People's Day," which drew its own set of critiques. New York Gov. Andrew Cuomo said it was wrong to make the two groups share one holiday.

There are also other efforts to recognize the role people of color played in American history.

This week, the Senate unanimously passed a bill to make Juneteenth — the day marking the end of slavery in the U.S. — a public holiday.

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

The science questions that could be answered by an electron ion collider (EIC) – a very large-scale particle accelerator – are significant to advancing our understanding of the atomic nuclei that make up all visible matter in the universe, says a new report by the National Academies of Sciences, Engineering, and Medicine.

Current evidence supports the classification of the contemporary red wolf as a distinct species of wolf, although additional genomic evidence from historic wolf specimens could change that assessment, says Evaluating the Taxonomic Status of the Mexican Gray Wolf and the Red Wolf, a new report from the National Academies of Sciences, Engineering, and Medicine.

Last week, millions of Americans made a trip to the grocery store to buy a fuller cart than their usual weekly shopping. Thanksgiving is the beginning of the holiday season, centered on cooking, abundance, and plenty, even as celebration get-togethers are scaled back because of the pandemic.

HCLTech said the lab is scalable to test millimeter-wave (mmWave) frequency 5G infrastructure to help OEMs and telecom service providers quickly and accurately measure critical parameters.

Join us for this fun Garden tradition! We’ll craft nature-filled globes, mini wreaths, botanical cards, and more. Garden Admission, refreshments and all materials included. Children must be accompanied by a registered adult. Drop-in any time during 2-hour program window.

Join us for this fun Garden tradition! We’ll craft nature-filled globes, mini wreaths, botanical cards, and more. Garden Admission, refreshments and all materials included. Children must be accompanied by a registered adult. Drop-in any time during 2-hour program window.

Come have a fabulous time enjoying light refreshments and finding beautiful and unusual gifts for the holidays at our special holiday shopping party in the Garden’s Julia Morgan Hall. Choose from a unique selection of gifts from local vendors as well as unique hand-crafted gifts from the Garden. We currently have 2 arrival time windows to choose from: 4:00 pm - 5:30 pm and 5:30 pm - 7:00pm. Please enter the number of people in your group for selected entry time and plan on arriving during that timeframe. Each member is allowed two additional non-member.Special Event Give-Away!If you register and attend, you will be entered into our $50 Garden Shop gift certificate give-away!Learn more and register here

When roboticists create behaviors for teams of robots, they first build algorithms that focus on the intended task. Then they wrap safety behaviors around those primary algorithms to keep the machines from running into each other. Each robot is essentially given an invisible bubble that other robots must stay away from. As long as nothing touches the bubble, the robots move around without any issues. But that's where the problems begin.

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As a cardiologist, I am continuously telling my patients about the importance of heart health. While many people wait until the new year to focus on their health, the holiday season provides the perfect time for them to make a conscious effort to eat items that are heart healthy.

It's that time of year, the most wonderful time of year. The time for family, friends and, of course, food. Thanksgiving has come and gone, and so have the leftovers. Now we're in the throes of the holiday season with more gatherings every weekend.

Though the baking industry has a very safe record for the production of shelf-stable food products, Salmonella continues to be a pathogen of concern.

This year’s holiday rollout from Nassau Candy’s manufactured brands offers gifting possibilities for every category, including Hanukkah.

Consolidated Packaging Group (CPG) has introduced their new flat-bottom, stand-up pouches, which complement their extensive product line

Supernatural teamed up with King Arthur Baking Company and Vital Farms to launch ten brand-new kits for baking festive treats like gingerbread houses, Hanukkah sugar cookies, buttermilk doughnuts, themed sprinkle sets, and more.

Frito-Lay brands releasing new holiday snacks include Cheetos, Smartfood, Quaker, Cap'n Crunch, and Rold Gold.

The ad campaign embraces tradition while showcasing the many flavorful ways to use walnuts beyond celebrated recipes.

To celebrate the holiday season, The Cheesecake Factory welcomes back its festive Peppermint Bark Cheesecake. 

New Peppermint Stick Chocolate Swirl Cheesecake debuts just in time for the holidays.

Each tin includes four 3-oz. bags of chocolate-covered grahams, chocolate-covered pretzels, chocolate caramel bites with pretzel crunch, and caramels with sea salt.

Bonnie & Pop has consumers covered for Christmas, Hanukkah, and Kwanzaa gifting options.

This holiday season, Snack Factory is again rolling out its seasonal Pretzel Crisps flavors, White Crème & Peppermint and Dark Chocolate & Peppermint. 

McDonald's recently released new Holiday Pies, a limited-time seasonal menu item which will be offered regionally.

Holidays have arrived at First Watch, as the breakfast, brunch, and lunch concept has launched its limited-time seasonal menu.

SkinnyDipped is releasing a new flavor lineup for the holidays, including Maple Kiss, Pumpkin Spice, Peppermint, and Mocha Splash.

Cranberry Walnut Loaf and Savory Holiday Rolls hit store shelves nationwide.

The brand is returning two favorites to shelves: its Cranberry Walnut Loaf and Take & Bake Savory Holiday Rolls.

Walker’s Shortbread, the 125-year-old Scottish shortbread brand, is introducing its 2024 holiday lineup, touting its new tartan packaging.

The Double Chocolate Peppermint Footlong Cookie is the sequel to Subway's footlong cookie and is available nationwide on November 1.

The products include a mix of new and returning limited-time offerings.

AIB International's globally recognized Consolidated Standards for Inspections have been updated to incorporate the latest industry best practices, new regulations, and food safety requirements and will be released on July 25.

New products include Holiday HoHos and CupCakes, Mint Chocolate Flavored Twinkies, and Hot Chocolate & Marshmallow Flavored Donettes.

The McKee Foods brand’s 2024 Christmas lineup includes a pair of new items and several returning products.

Dunkin’ debuts three items for the holidays and, by popular demand, brings back its Cranberry Orange Muffin.

Thanks to manufacturing improvements to its standard plated paddle agitator, Marion can speed up lead times on its popular 30-inch diameter and smaller-sized horizontal mixers.

Southern Recipe Small Batch is rereleasing its Cranberry Jalapeno and Apple Cinnamon pork rind flavors for the holidays.

A new sanitary Model RCM36X9SS Rotary Continuous Mixer from Munson Machinery blends dry bulk solids with or without liquid additions, in-line at low cost over long production runs.

The ROSS Model HSM-405SC-25 Inline High Shear Mixer with Solids/Liquid Injection Manifold (SLIM) Technology is designed with efficiency, mobility in mind.

Schär’s gluten-free Speculoos cookies and Panettone offer options for gluten-free holiday celebrations.

As Bühler Aeroglide’s vice president of process engineering, Tom Barber will work with customers worldwide.

The limited-time bars incorporate ginger, allspice, and other simple ingredients, with a total of 12 g of protein in each serving.

Bühler Aeroglide has introduced a complete moisture control system that helps customers maintain a dryer temperature profile and minimize over drying.  

It is always a mystery why more plumbers fail to emphasize drain cleaning — if they offer it at all. Some think it fails to offer enough revenue. Others think it presents too much low-dollar competition. Here are five solid reasons every plumber should offer drain cleaning.