Categorization underlies understanding. Conceptualizing solid-state structures of organic molecules with `archetype crystal structures' bridges established categories of disorder, polymorphism and solid solutions and is herein extended to special position and high-Z' structures. The concept was developed in the context of disorder modelling [Dittrich, B. (2021). IUCrJ, 8, 305–318] and relies on adding quantum chemical energy differences between disorder components to other criteria as an explanation as to why disorder – and disappearing disorder – occurs in an average structure. Part of the concept is that disorder, as probed by diffraction, affects entire molecules, rather than just the parts of a molecule with differing conformations, and the finding that an R·T energy difference between disorder archetypes is usually not exceeded. An illustrative example combining disorder and special positions is the crystal structure of oestradiol hemihydrate analysed here, where its space-group/subgroup relationship is required to explain its disorder of hydrogen-bonded hydrogen atoms. In addition, we show how high-Z' structures can also be analysed energetically and understood via archetypes: high-Z' structures occur when an energy gain from combining different rather than overall alike conformations in a crystal significantly exceeds R·T, and this finding is discussed in the context of earlier explanations in the literature. Twinning is not related to archetype structures since it involves macroscopic domains of the same crystal structure. Archetype crystal structures are distinguished from crystal structure prediction trial structures in that an experimental reference structure is required for them. Categorization into archetype structures also has practical relevance, leading to a new practice of disorder modelling in experimental least-squares refinement alluded to in the above-mentioned publication.

We were born from the need to create a quality apparel brand whose designs scream a love for sneakers, and whose collections are the completion of every sneakerhead's wardrobe.

By Gerald E. Ulen Discover the Hidden Realms of Electricity with Gerald E. Ulen's Upcoming Release

In addition to the known phenomena of lightning and switching, numerous new sources, in particular power converters, can cause disturbance in installations. This disturbance, which is generated by the installation itself or carried by the system from external sources or... Read more

The post Six less known phenomena that can cause disturbance in electrical installations appeared first on EEP - Electrical Engineering Portal.

Library - Art Library, Location - LIB, Call number - N6512.75.W66 E97 2016

Location: Engineering Library- TA455.P58V65 2016

Location: Engineering Library- TJ853.4.M53P36 2016

The director of Collective Phenomena, Semion Aleksandrovskiy, shared a little of this complex history via his own family story.

A collective gasp echoed like a thunderclap in a valley in our Daily Beast newsroom late Wednesday afternoon at the news that singer Liam Payne, who became famous as a member of the group One Direction, died at age 31.

TMZ reports that Payne fell from a hotel balcony in Argentina, where he had reunited with bandmates at 1D-er Niall Horan’s concert. He had, according to the site, been behaving “erratically,” earlier in the day, and was spotted smashing a laptop in the hotel lobby and having to be carried back to his room. He had been in headlines on gossip blogs over tension with his ex-fiancée Maya Henry, who, TMZ says, alleged “he'd left her after asking her to get an abortion.”

In the shock of his death, fans couldn’t ignore the eerie nature that Payne had just connected with his One Direction bandmates. Dark questions emerge when a celebrity dies so young: What role did the often horrific toll of fame have on a person like Payne, who has been open about addiction and suicidal ideation? But there’s also an impulse to go back to the roots of a person’s talent, to revisit what it was that we all fell in love with—and was their passion—in the first place.

Read more at The Daily Beast.

Nothing beats networking in the world of business marketing. It is perhaps one of the oldest and most effective ways of bringing your business in front of people who might be interested in it and also other businesses who might be in the...

München ; Wien : De Gruyter Oldenbourg, [2023]

BMW S1000 RR was launched about 10 years back to dominate the litre-class superbike segment and that it did with authority. Now there's a brand new version that is lighter, faster, smarter and easier to ride. Well, that's what BMW claims so we headed out to the Buddh International Circuit to find out how good the new BMW S1000 RR really is and what is that leaves room for improvement.

Nothing beats networking in the world of business marketing. It is perhaps one of the oldest and most effective ways of bringing your business in front of people who might be interested in it and also other businesses who might be in the...

Archives, Room Use Only - QC531.T98 1884

Archives, Room Use Only - TK2921.G76 1843

Fire-created thunderstorms, "ember attacks," high winds and fire clouds are all a part of the intense fires down under.

She also reveals her secret to career-home balance.

Coronavirus: the symptoms Read our LIVE updates on the coronavirus here

Videos of unidentified flying objects have been officially released by the Department of Defense after unauthorised distribution in 2007 and 2017.

Mario Andretti has hailed the new Circuit of the Americas as "phenomenal" after officially opening the track

Pigeons live large in these big artworks that celebrate the remarkable qualities of these overlooked birds.

In many part of the world, the 2019-2020 winter was the winter that wasn't.

Bollywood star Irrfan was admitted in Mumbai's Kokilaben Dhirubhai Ambani hospital with a colon infection on Tuesday and passed away on Wednesday April 29, 2020 at the age of 53. 

Many stars from the Indian sports fraternity took to social media to pay tribute to the late actor Irrfan Khan. From the likes of Sachin Tendulkar, Virat Kohli and Virender Sehwag, to Saina Nehwal and Sunil Chhetri, here are some of the heartfelt posts shared on Twitter.

"Sad to hear the news of #IrrfanKhan passing away. He was one of my favorites & I've watched almost all his films, the last one being Angrezi Medium. Acting came so effortlessly to him, he was just terrific. May his soul Rest In Peace. Condolences to his loved ones," tweeted cricket legend Sachin Tendulkar.

Sad to hear the news of #IrrfanKhan passing away. He was one of my favorites & I’ve watched almost all his films, the last one being Angrezi Medium. Acting came so effortlessly to him, he was just terrific.
May his soul Rest In Peace. 🙏🏼
Condolences to his loved ones. ☹ï¸Â pic.twitter.com/gaLHCTSbUh

— Sachin Tendulkar (@sachin_rt) April 29, 2020

Indian cricket captain Virat Kohli tweeted: "Saddened to hear about the passing of Irrfan Khan. What a phenomenal talent and dearly touched everyone's heart with his versatility. May god give peace to his soul"

Saddened to hear about the passing of Irrfan Khan. What a phenomenal talent and dearly touched everyone's heart with his versatility. May god give peace to his soul 🙏

— Virat Kohli (@imVkohli) April 29, 2020

"Khan sahab, you were brilliant at what you did and that will always live on. Thank you for bringing your art to us the way you did. Strength to those grieving," said Indian football captain Sunil Chhetri.

Khan sahab, you were brilliant at what you did and that will always live on. Thank you for bringing your art to us the way you did. Strength to those grieving.

— Sunil Chhetri (@chetrisunil11) April 29, 2020

"A great actor and a great talent. Heartfelt Condolences to his family and well - wishers #IrfanKhan," said former India batsman Virender Sehwag.

A great actor and a great talent. Heartfelt
Condolences to his family and well - wishers #IrfanKhan

— Virender Sehwag (@virendersehwag) April 29, 2020

"Saddened to hear the passing away of #IrfanKhan. Condolences to the entire family. An actor of great caliber! You will be cherished by us until eternity. RIP," tweeted fast bowler Mohammed Shami.

Saddened to hear the passing away of #IrfanKhan. Condolences to the entire family. An actor of great caliber! You will be cherished by us until eternity. RIP. pic.twitter.com/wLTWUz8w6Z

— Mohammad Shami (@MdShami11) April 29, 2020

Badminton star Saina Nehwal tweeted a picture of herself and Irrfan. "With the legend during one ad shoot ... great memories sir #RIPIrrfanKhan," she said.

With the legend during one ad shoot ... great memories sir 🙏🙏 #RIPIrrfanKhan pic.twitter.com/GOKyVjqAoR

— Saina Nehwal (@NSaina) April 29, 2020

The actor had been ailing ever since he was diagnosed with neuroendocrine tumour a while back, and has been under medical attention for the same. He even went abroad for treatment.

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She's never been afraid to show off her incredible figure. And Michelle put her phenomenal physique on display as she stripped off for a stunning bikini selfie during her holiday in Dubai on Wednesday.

She kicked off 2020 with a holiday to remember in Jamaica. And Louisa Johnson was reminiscing about her trip amid the UK lockdown as she shared a sizzling throwback snap on Monday.

Conor McGregor praised Donald Trump, calling him a 'Phenomenal President'. The Ultimate Fighting Championship fighter took to Twitter on Monday as Trump celebrated his three-year anniversary.

She has had her hands full looking after her daughter in lockdown. So Ferne McCann kept things casual on Monday as she enjoyed a dip in the hot tub with two-year-old Sunday.

Looking incredible in the blue two-piece, she larked around on the boat with the lifejacket-clad tots before launching herself into the sea

Former Liverpool striker Emile Heskey believes Jurgen Klopp will 'get his teeth stuck into' RB Leipzig star Timo Werner in the summer transfer window.

Steven Gerrard is very excited to see Liverpool getting better and winning more trophies over the next few years, praising everyone in the squad for their mental strength.

Kendall Jenner put her model body front and center in her latest selfies. The 23-year-old catwalk queen left nearly nothing to the imagination as she posed in a tiny paisley bikini.

Conor McGregor praised Donald Trump, calling him a 'Phenomenal President'. The Ultimate Fighting Championship fighter took to Twitter on Monday as Trump celebrated his three-year anniversary.

LAWRENCE BOOTH AT THE OVAL: Joe Root hailed a 'phenomenal' summer of cricket after England squared the Ashes at 2-2 almost exactly two months after England's World Cup win.

EXCLUSIVE INTERVIEW BY LUKE AUGUSTUS: Anthony Joshua has hailed the prospect of fighting in America as 'phenomenal' should his next fight be held Stateside.

Cham, Switzerland : Springer, [2019]

Barker Library - TA357.5.C68 S54 2012

Barker Library - TA357.5.D37 S46 2013

Hayden Library - TA357.5.M84 M82 2018

Hayden Library - B805.C43 2018

Bormashenko, Edward Yu., author

MEDIA PhonCD J R722 phe

Online Resource