A systematic procedure is introduced for modeling charge-neutral non-polar surfaces of ionic minerals containing polyatomic anions. By integrating distance- and charge-based clustering to identify chemical species within the mineral bulk, our pipeline, PolyCleaver, renders a variety of theoretically viable surface terminations. As a demonstrative example, this approach was applied to forsterite (Mg2SiO4), unveiling a rich interface landscape based on interactions with formaldehyde, a relevant multifaceted molecule, and more particularly in prebiotic chemistry. This high-throughput method, going beyond techniques traditionally applied in the modeling of minerals, offers new insights into the potential catalytic properties of diverse surfaces, enabling a broader exploration of synthetic pathways in complex mineral systems.

Proteins are well known `shapeshifters' which change conformation to function. In crystallography, multiple conformational states are often present within the crystal and the resulting electron-density map. Yet, explicitly incorporating alternative states into models to disentangle multi-conformer ensembles is challenging. We previously reported the tool FLEXR, which, within a few minutes, automatically separates conformational signal from noise and builds the corresponding, often missing, structural features into a multi-conformer model. To make the method widely accessible for routine multi-conformer building as part of the computational toolkit for macromolecular crystallography, we present a graphical user interface (GUI) for FLEXR, designed as a plugin for Coot 1. The GUI implementation seamlessly connects FLEXR models with the existing suite of validation and modeling tools available in Coot. We envision that FLEXR will aid crystallographers by increasing access to a multi-conformer modeling method that will ultimately lead to a better representation of protein conformational heterogeneity in the Protein Data Bank. In turn, deeper insights into the protein conformational landscape may inform biology or provide new opportunities for ligand design. The code is open source and freely available on GitHub at https://github.com/TheFischerLab/FLEXR-GUI.

The capillary wave model of a liquid surface predicts both the X-ray specular reflection and the diffuse scattering around it. A quantitative method is presented to obtain the X-ray reflectivity (XRR) from a liquid surface through the diffuse scattering data around the specular reflection measured using a grazing incidence X-ray off-specular scattering (GIXOS) geometry at a fixed horizontal offset angle with respect to the plane of incidence. With this approach the entire Qz-dependent reflectivity profile can be obtained at a single, fixed incident angle. This permits a much faster acquisition of the profile than with conventional reflectometry, where the incident angle must be scanned point by point to obtain a Qz-dependent profile. The XRR derived from the GIXOS-measured diffuse scattering, referred to in this paper as pseudo-reflectivity, provides a larger Qz range compared with the reflectivity measured by conventional reflectometry. Transforming the GIXOS-measured diffuse scattering profile to pseudo-XRR opens up the GIXOS method to widely available specular XRR analysis software tools. Here the GIXOS-derived pseudo-XRR is compared with the XRR measured by specular reflectometry from two simple vapor–liquid interfaces at different surface tension, and from a hexadecyltri­methyl­ammonium bromide monolayer on a water surface. For the simple liquids, excellent agreement (beyond 11 orders of magnitude in signal) is found between the two methods, supporting the approach of using GIXOS-measured diffuse scattering to derive reflectivities. Pseudo-XRR obtained at different horizontal offset angles with respect to the plane of incidence yields indistinguishable results, and this supports the robustness of the GIXOS-XRR approach. The pseudo-XRR method can be extended to soft thin films on a liquid surface, and criteria are established for the applicability of the approach.

The Takagi–Taupin equations are solved in their simplest form (zero deformation) to obtain the Bragg-diffracted and transmitted complex amplitudes. The case of plane-parallel crystal plates is discussed using a matrix model. The equations are implemented in an open-source Python library crystalpy adapted for numerical applications such as crystal reflectivity calculations and ray tracing.

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.

MPK Night Market. ; Credit: MPK Night Market (via YouTube)

Ahhhhh. Can you feel that breeze? Cool temps are here to stay through Sunday and we're going ham (in a totally respectable, public radio kind of way). Because frankly, we all deserve a break after sweating ourselves through this near-awful workweek. 

Here's everything you need to know: 

1. Pro volleyball at Hermosa Beach

Video: NVL highlights

These people are serious about volleyball — and they look damn good doing it. Take a trip to Hermosa Beach this weekend, where the National Volleyball League will be hosting its fifth tour stop of the season. The championship will feature 32 elite men’s and women’s teams, all competing for a prize of $50,000. Come by at noon Saturday for a free juniors’ clinic (all ages welcome). Sign up here. 

When: Friday through Sunday | Schedule here

Where: Hermosa Beach Pier | MAP

Price: Free

2. #DTLA salsa dancing

Video: Music Center's Dance Downtown

We know you're dying to show off your salsa skills. Join dancers of all levels at the Music Center's last Dance Downtown of the summer on Friday night. Temps are dropping (hallelujah!) so pack a picnic and get movin'.

When: 6:30 to 10 p.m. Friday 

Where: The Music Center Plaza | MAP 

Price: Free

3. Shades and Shadows 

Looking for something a little different and a bit creepy? The reading series Shades and Shadows focuses solely on horror, sci-fi, fantasy and any other form of dark literature that you’re afraid to put down. To honor its one-year anniversary, the group will be haunting the California Institute of Abnormalarts. (Yes, this exists. It's in North Hollywood). Stop by for an all-female lineup, including Nancy Holder of "Buffy the Vampire Slayer" and the Internet's most famous mortician, Caitlin Doughty.  

When: 8 p.m. Saturday

Where: California Institute of Abnormalarts | MAP

Price: $10

4. Oktoberfest at Angel City

It doesn't feel like fall. The sun is blazing and the thought of drinking a pumpkin-spice latte is just gross. That's why we're sipping on cold beer instead. Savor seasonal craft brews with sausage, sauerkraut and soft pretzels at Angel City Brewery's Oktoberfest on Sunday. Festivities will include keg races, live polka music, ping pong and brewery tours. The best part? You're drinking for a good cause — a portion of the event’s beer and retail store sales will go to the Downtown Women’s Center.

When: Noon to 8 p.m. Sunday

Where: Angel City Brewery | MAP

Price: Free admission

5. Monterey Park Night Market 

Video: Every food you ever wanted

Have your pick of tacos, sliders, pressed juice or even a sushi burrito at Monterey Park's Night Market on Friday. That's not all — other highlights include food and dessert from Sticky Rice and Ice Cream Lab. After indulging, walk it off while viewing funky art prints, interesting hand-painted rocks and L.A.-inspired oil pantings. 

When: 5:30 to 10:30 p.m. Friday

Where: Barnes Park | MAP

Price: Free admission; eat at your own will 

6. Friday Night Flicks 

Watch: The best of Johnny Depp

Take a break from Netflix and catch classic Johnny Depp in "Benny and Joon" at Pershing Square on Friday. Pack a picnic, bring a blanket or lawn chair and watch the '90s flick on a 20-foot inflatable screen. Pro tip: Dogs are welcome (if on a leash). For quick easy access to Pershing Square take the Metro (Pershing Square 5th street stop) or park in the Pershing Square Garage.

When: 8 p.m. Friday

Where: Pershing Square | MAP

Price: Free 

7. Kayaking in Malibu

(Photo: Benjamin Brayfield/KPCC)

Spend a leisurely day kayaking the waves of the Pacific. Head to Malibu Surf Shack and grab a one- or two-seater before staking your spot on Malibu Lagoon State Beach. The state park has shallow tide pools and a lagoon with pelicans — plus, it's home to the Malibu Pier. Pro tip: Wear sunscreen and don't drop your phone in the ocean while taking selfies, people.

When: The Surf Shack is open daily 10 a.m. to 6 p.m. 

Where: Malibu Lagoon State Beach | MAP

Price: $35 per day for single kayak; $50 per day for double kayak

8. Feline Film Festival 

Video: We are gonna have a cat party

Imagine watching "America's Funniest Home Videos," but every entry includes a cat. That's what's happening Sunday at the L.A. Feline Film Festival. Sit back and enjoy over an hour of the most popular feline flicks from the Internet. Special guests include Lil Bub, Tara the Hero and Dusty Klepto Kitty. There will also be music, cat adoptions, a cat costume contest, food and drink. Pro tip: Cat flair is obviously encouraged.

When: 1 to 10 p.m. Sunday

Where: Exposition Park | MAP

Price: $15 admission; $15 parking | Purchase tix here

What'd we miss? Let me know on Twitter @KristenLepore.

President Biden plans to visit the Champlain Towers condo collapse later this week.; Credit: Lynne Sladky/AP

The White House says President Biden and first lady Jill Biden will travel to Florida Thursday to view first hand the partial collapse of the Champlain Towers condominium.

Asked by reporters if he planned to visit Surfside, Biden said, "Yes I hope so, as soon as we can. Maybe as early as Thursday." The White House issued a formal announcement of the trip shortly afterward.

The official death toll in the collapse has risen to 11, with some 150 people unaccounted for.

The Biden administration has responded to the disaster, dispatching FEMA administrator Deanne Criswell to the scene earlier this week.

"[The agency] has deployed an Incident Management Assistance Team, as well as building science experts, structural engineers and geotechnical experts to support search-and-rescue operations, and a mobile command center," White House press secretary Jen Psaki said Monday.

Psaki said the U.S. Army Corps of Engineers is also providing technical assistance for debris removal. Two FEMA-supported search-and-rescue teams are also involved in the response to the collapse.

Florida Gov. Ron DeSantis has praised FEMA and the Biden administration for "stepping up to the plate" in providing assistance in the search and recovery effort. Miami-Dade Mayor Daniella Levine Cava said Biden's upcoming trip would be "an important reminder that our county, our state and our nation are giving everything we have to search for the victims of this tragedy and support the families in this incredibly devastating time."

Here's what we know about what led to the collapse. Follow more coverage on the aftermath here.

Florida Division of Emergency Management is urging people with information about loved ones who are either unaccounted for or known to be safe to call 305-614-1819.

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

President Biden listens as Florida Governor Ron DeSantis speaks about the collapse of the 12-story Champlain Towers South condo building in Surfside, Florida.; Credit: Saul Loeb/AFP via Getty Images

President Biden landed in Florida on Thursday to visit privately with families whose loved ones were in the 12-story Champlain Towers South condo when it collapsed.

Biden also met with first responders to thank them for their rescue work. Search and rescue efforts paused on Thursday because of structural concerns. So far, 145 people are still unaccounted for while 18 people have been confirmed dead.

During a briefing with local and state officials, Biden said the federal government would pick up 100% of the costs associated with the response to the building collapse. I think I have the power and will know shortly to be able to pick up 100% of the costs of the county and the state. I'm quite sure I can do that," Biden said.

Biden sat beside Florida's Republican Governor Ron DeSantis, who thanked the president for his support, saying "we've had no bureaucracy" from the Federal Emergency Management Agency.

"You recognize in each individual unit, there's an amazing story, and lives have been shattered irrevocably, as a result of this," DeSantis said. "We have families with kids missing. And we even have young newlyweds who hadn't even been married a year who were in the tower when it collapsed," he said.

"What we just need now is we need a little bit of luck. We need a little bit of prayers. And you know, we would like to be able to, you know, to see some miracles happen," DeSantis said.

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

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As search and rescue efforts at the site of the Surfside, Fla., condo collapse stretch into day nine, officials have said that the number of confirmed fatalities has risen to 20, while the number of people unaccounted for has dropped from 145 to 128.

Miami-Dade County Mayor Daniella Levine Cava told reporters Friday that one of the two fatalities recovered overnight was the 7-year-old daughter of a firefighter for the city of Miami.

"It goes without saying that every night since this last Wednesday has been immensely difficult for everybody, particularly the families that have been impacted," Levine Cava said. "But last night was truly different and more difficult for our first responders. These men and women are paying an enormous human toll each every day, and I ask that all of you please keep all of them in your thoughts and prayers."

"They truly represent the very best in all of us, and we need to be there for them as they are here for us," she said.

The number of people who have been accounted for has grown to 188, officials also confirmed Friday. In many cases, detectives followed leads regarding individuals who were unaccounted for but then reached them and discovered they were safe.

They even discovered additional family members who were safe and who could have been in the building, and added them to the tally of accounted for individuals.

Officials have not yet released the names of all of the dead and missing people, and asked Friday that the privacy of the families be respected.

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

An American flag flies from a crane on July 4th next to the Champlain Towers South condo building, where scores of victims remain missing more than a week after it partially collapsed.; Credit: Lynne Sladky/AP

Preparations continue in Surfside, Fla. for the demolition of a portion of the Champlain Towers South still standing after much of the building collapsed in the early morning hours on June 24.

Miami-Dade County Mayor Daniella Levine Cava told reporters on Sunday that bringing down the remainder of the collapsed condominium in a controlled fashion is crucial to the safety of search and rescue teams.

Those teams have paused their work so demolition can take place. Levine Cava said officials are still unsure of a specific time that the demolition will occur.

"Our top priority is that the building can come down as soon as possible — no matter what time that occurs — and safely as possible," Levine Cava said at a morning news conference.

The number of confirmed dead from the collapse remains at 24. The number of people unaccounted for remains at 121.

Preparations for the demolition come as Tropical Storm Elsa is tracking towards southern Florida. The storm is expected to hit the area Monday and Tuesday.

The instability of the building could be made worse by the storm, which is expected to bring strong winds and rain at the beginning of the week. Mayor Levine Cava said that as soon as the demolition has occurred, search and rescue efforts are expected to resume.

Ahead of Elsa's arrival in Florida, Gov. Ron DeSantis issued a state of emergency Saturday for 15 counties, including Miami-Dade.

On Sunday, he expressed optimism that the Surfside area may be spared from the worst of the storm.

"We could see some gusts, but it has tracked west over the last day and a half — more so than the initial forecast," he said. "So, we'll just keep watching that."

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

Rescue workers move a stretcher containing recovered remains at the site of the collapsed Champlain Towers South condo building in Surfside, Fla., on Monday. Rescuers have recovered three more bodies and officials say the demolition of the building will accelerate search efforts.; Credit: Lynne Sladky/AP

Miami-Dade County mayor Daniella Levine Cava said on Monday morning that three more victims have been recovered from the ruins of the collapsed condo tower in Surfside, Fl., bringing the total death toll so far to 27.

Cava added that the demolition of the rest of Champlain Towers South "was executed exactly as planned" the previous evening, and that it would now allow rescue teams to work on a section of the collapsed building that was previously inaccessible. She noted that 118 individuals remain unaccounted for.

"Truly, we could not continue without bringing this building down," Cava said. "The area closest to the building was not accessible, due to the enormous risk to the team of first responders, because of the instability of the building."

According to Florida Governor Ron DeSantis, the newly accessible section of rubble is also from a part of the building where many bedrooms were located, and may contain the remains of many victims. The building collapsed in the middle of the night.

Authorities had been concerned that an approaching tropical storm might topple the standing part of the building onto the section that had already collapsed. That would have been a massive setback in the search for victims and for clues to the cause of the disaster.

Tropical Storm Elsa now appears to be tracking further to the west, and is more likely to hit the west coast of Florida, rather than the site of the disaster. But officials at the National Weather Service say the storm's course still could change.

Cava acknowledged that demolishing people's homes "is a devastating decision" and said that "our teams are doing everything possible to help those who lost their home begin to rebuild."

She said that authorities are working with insurance companies and the Federal Emergency Management Agency to streamline claims and help those who've lost homes and property.

One animal rescue volunteer had gone to court to stop the demolition of the rest of the tower, asking the court to allow more time to rescue pets that might still be trapped inside. The judge denied the motion.

Cava said in her Monday briefing that Miami-Dade rescue teams had already gone through parts of the building that were still accessible, "searching in closets and under beds" to find missing pets.

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

Although most people who receive and manage Social Security benefits on behalf of other individuals perform their duties well.

The end of a roadside guardrail must be designed so that it is not a hazard to occupants of a vehicle striking it and so that it absorbs energy in a crash and redirects the vehicle into a safe trajectory.

In an August 18 letter, the U.S. Department of the Interior’s Office of Surface Mining Reclamation and Enforcement informed the National Academies of Sciences, Engineering, and Medicine that it should cease all work on a study of the potential health risks for people living near surface coal mine sites in Central Appalachia.

The number of patients in the U.S. awaiting organ transplantation outpaces the amount of transplants performed in the U.S., and many donated organs are not transplanted each year due to several factors, such as poor organ function, says a new report from the National Academies of Sciences, Engineering, and Medicine.

As advisers to the nation on all matters of science, medicine, and public health, we are compelled to underscore the value of science-based decision-making at all levels of government.

To detect soreness in Tennessee walking horses, only veterinarians should administer inspections at shows, a new report from the National Academies of Sciences, Engineering, and Medicine recommends.

Communities must move from coping with floods to adapting for them. Kwame Owusu-Daaku, a former Gulf Research Program fellow, explains why living through floods in his native Ghana led him to Florida to help address the link between flooding and injustice.

A new report says wind turbine generators used in offshore wind farms can interfere with navigational radar used by ships to avoid collisions, posing challenges for safe maritime navigation.

Almost 110,000 Americans are waiting for organ transplants, but there are significant inequities in who gets access to the waiting list and an eventual transplant. A new report recommends several policy changes to create a more fair, equitable, and patient-focused system for organ allocation.

For decades, scientists have tried to harness the unique properties of carbon nanotubes to create high-performance electronics that are faster or consume less power -- resulting in longer battery life, faster wireless communication and faster processing speeds for devices like smartphones and laptops.

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Explore the art of natural perfumery at the UC Botanical Garden at Berkeley with Jessica Mennella of FLWR Napa Valley. Learn the foundation and techniques of natural perfumery using the Slow Scent® method of perfuming developed by renowned perfumer Mandy Aftel. Jessica Mennella, trained by Aftel, will be your instructor for this hands-on and interactive class. During the workshop, you will have the opportunity to explore 18 botanicals whose complexity of scent is linked directly to the plants and flowers from which they are derived. You will also learn the basic structure of Slow Scent® natural perfume formulation and blending techniques. No prior experience is necessary, and all materials will be provided. By the end of the workshop, you will have created your own signature perfume using the formula you developed in class. Additionally, you will receive a guide to the process of making natural perfumes. The art of natural perfumery is rooted in the history and beauty of botanical materials. And among our senses, scent has the unique ability to instantly transform our mood and life experience. Come perfume in the gardens and discover for yourself how scent can take you to another place and time. Whether you are new to natural perfumery or have attended previous workshops, you are welcome to join us!

BT decided to showcase its technology by hosting a virtual media summit for AMEA and we knew that we could save money and invite more people if we made it virtual.

Through five short use cases this powerful four-minute video shows BT innovating to use interactive video conferencing in managing operations and communicating externally and internally across Asia, Africa and the Middle East. Ruth Rowan and Kevin Taylor of BT Global Services describe how high definition video and Dolby quality sound is enabling enhanced and effective collaboration for BT teams serving customers across this geographically diverse 99-country region.

NOAA's Suomi NPP satellite measured cloud top temperatures as it passed over Tropical Storm Malakas in the northwestern Pacific Ocean and found strong storms.

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In today's computer chips, memory management is based on what computer scientists call the principle of locality: If a program needs a chunk of data stored at some memory location, it probably needs the neighboring chunks as well.

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With the two side shooters Dymond DSV and Dymond D Monoblock, Minebea Intec presents two new products for its premium portfolio in the field of horizontal X-ray inspection.

Ingredients and processing play a 50/50 role in the quality production of artisan bread. It's the simple ingredient list and simple processing that is helping boost this style of bread's popularity in the natural and clean label trend.

New platform features seamlessly combine visibility data from all modes, truck appointment scheduling, and warehouse yard management—driving productivity and performance

An interview with KPM Analytics on key performance indicator (KPI) solutions.

Hard winter wheat (HWW) is the predominant wheat of choice for bread production, but I’m finding that not all varieties create dough with optimum handling properties.

Growing food manufacturer rapidly adds mobile inventory solution to harmonize business systems and enhance productivity, traceability and sustainability.

Companies that make belts, conveyors, and associated equipment like motors have a wide array of customers in the snack food and wholesale bakery industries, because every food production facility relies heavily on these technologies throughout their processes.

The newest addition to the snack nut line combines a touch of heat and tangy citrus flavor.

The sweet, spicy nuts are hitting shelves ahead of the fall and winter holidays.

The Chopin x Sugarfina Martini Collection has been one of Sugarfina's most successful partnerships to date.

To capture the attention of pizza consumers at retail, manufacturers need to focus on product attributes currently driving stronger performance in this relatively flat category.

The B.T.R. x Blue Bottle Spiced Chocolate Chip Cookie Dough Superfood Protein Bar can be found at all Blue Bottle Coffee locations nationally.

IFPA Global attendees will get to experience the variety before its release in February 2025.

Crunch and flavor have always been gold and silver medalists in the cracker and crisp game, but because consumers are looking for more healthful snacks, there have been interesting developments with these products.

Comax Flavors has released new primary research on consumers’ behavior, usage, and attitudes towards Protein Powder, Ready-To-Drink Protein Drinks, Protein Bars, Protein Chips/Tortillas/Puffs/Popcorn, Protein Cookies/Wafers, Protein Brownies, and Protein Cake Bites.

Ingredion's proprietary deflavoring technology to enable manufacturers to achieve taste, nutrition, and functionality must-have in food and beverages containing pulse-based plant proteins.

Joel Clark, founder of Baker Mills and the Kodiak Cakes brand, got his start in the food business when he was just 8 years old, pulling a wagon around his Salt Lake City neighborhood selling whole-grain pancake mix in paper bags door-to-door. His mom ground the wheat. It was his grandfather's recipe.

Snack food and wholesale bakery companies in the market for machines that help prepare, store, transport, and otherwise handle ingredients are most focused on qualities like automation, ease of maintenance, and the ability to deliver higher performance in throughput and accuracy.

The chip will make its theatrical movie debut in The Garfield Movie in May, and is celebrating with a limited-edition Garfield-themed bag, a larger-than-life mural, and more.

With this latest product launch, Calise Bakery is expanding its lineup of signature rolls and sourdough products.

Bars remain big business—the portability, flavor variety, better-for-you options, and other attributes of the bakery category appeals to hungry commuters, on-the-go moms and their offspring, health-conscious snackers, and other consumer segments.

Today’s laminators and sheeters are designed to deliver state-of-the-art attributes that meet operators’ needs and bakers’ demands.

Baker Perkins has exploited innovative technology to improve process control, performance and hygiene on all the units in its Co-Ex Master co-extrusion systems, which create high-value products by adding a center filling into a cereal outer.