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Affiliation to the Alcoholics Anonymous (AA) community: A qualitative study on differences between highly affiliated and low/non-affiliated individuals

Nordic Studies on Alcohol and Drugs, Ahead of Print. Aim: The aim of this study was to identify and elucidate the differences between highly affiliated and low/non-affiliated participants in Alcoholics Anonymous (AA) meetings. Methods: A qualitative study of 24 participants was conducted in Romania between March and June 2021. Data were collected by means of […]

The post Affiliation to the Alcoholics Anonymous (AA) community: A qualitative study on differences between highly affiliated and low/non-affiliated individuals was curated by information for practice.



  • Open Access Journal Articles

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Examining the reciprocal associations between symptoms of depression and anxiety and contact with the criminal justice system

Abstract Background Taken together, prior publications on the association between symptoms of depression and anxiety and contact with the criminal justice system (CJS) suggest a bi-directional relationship, but all the studies only focus on one direction in this relationship. Aims To examine, in longitudinally collected data, period-specific within-individual change in anxiety and depression measures preceding […]

The post Examining the reciprocal associations between symptoms of depression and anxiety and contact with the criminal justice system was curated by information for practice.



  • Journal Article Abstracts

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Trópico Macbeth: An Epic Quest for Money and Power

Attending a production of Macbeth may require one to have mental preparation—to face multiple murders with dark schemes guided...




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Better Ways for Jeff Bezos to Spend $131 Billion

In op-ed, Prof. Harold Pollack discusses ways Jeff Bezos could spend his fortune




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A 'cosmic connection' between two violinists

For decades, Cologne-based violinist Geoffry Wharton has played jazzy crowd-pleasing encores written in the 1930s by an obscure composer, Audrey Call. Then Wharton discovered a spooky connection with her.




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A Beautiful World: How music can make you better

Yes, music can help Alzheimer's patients; but it can help the rest of us, too.




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Bethel Church enters Hillsong territory with new church plant in Sydney

Bill Johnson’s Bethel Church in Redding, California, announced Sunday that it has planted a new church in Sydney, Australia, where Hillsong Church is headquartered. 




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'The Reckoning: How the Democrats and the Left Betrayed Women and Girls' (book review)

It takes far more guts to confront your ideological compatriots than your foes and a recent book documenting the assault of gender ideology on women’s rights from a leftist perspective exhibits such courage in spades.




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9 contrasts between His Kingdom and Christian nationalism

There has been much talk and concern regarding so-called Christian Nationalism in the past several years.




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Magical qualities of walnut work against cancer and diabetes

US scientists have reaffirmed the benefits of eating walnuts in a new study. Specialists from the University of California at Davis conducted a series of experiments on a group of male mice diagnosed with prostate cancer. The mice were divided into three diet groups. The first group did not consume walnuts, the second group received walnuts, and the third one was fed with walnut oil. The experiment showed that the development of the tumor and malignant cells significantly slowed among the rodents in the second and the third groups. According to Natural News, the scientists explained the success of the experiment with the content of powerful phytonutrients in raw walnuts. This natural product contains that inhibit cancer cells and prevent them from developing.Just two handfuls of walnuts every day reduces the risk of cancer by almost 50 percent, the scientists said.Furthermore, walnut oil reduces the amount of harmful cholesterol in blood and increases insulin sensitivity, which helps fight heart disease and reduces the risk of diabetes. For example, one study found that overweight adults with type 2 diabetes who consumed just one-quarter cup of walnuts daily reduced their fasting insulin levels in just a few months' time compared to those on non-walnut diets. It is believed that walnuts can shrink levels of the hormone IGF-1, known to play a key role in development of both prostate and breast cancer, Natural News says.Thanks to their omega-3 fat content, walnuts are often the subjects of cancer-preventive studies. However, one should be cautious with eating them as walnuts are a high calorie product. For example, just 2.6 ounces of walnuts is about 482 calories, which may - in some people - contribute to an excess of stored fat. Health benefits of walnuts have been known since time immemorial. Hippocrates and Avicenna mentioned them in the treatment of various diseases. In addition, the ancients thought that they stimulate mental activity. Anna Protsenko, a nutritionist, told MedPulse.ru. "Walnuts contain a great deal of minerals," the expert explains. "They include iron, copper, cobalt, potassium, sodium, phosphorus, magnesium, calcium, and iodine. Many of them are antioxidants. In addition, walnuts contain unsaturated fatty acids, more than 20 amino acids, and vitamins A, E, B, P and C. By the way, they contain nearly 50 times more vitamin C than citrus, and 8 times more than black currants. In addition, walnuts are rich in protein.




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Gamaleya Center virologist: There is no link between cancer and vaccination

LDPR leader Vladimir Zhirinovsky managed to get revaccinated. For the first time, the politician chose Sputnik V; for the repeated procedure, he opted for CoviVac. As Zhirinovsky explained, "the level of antibodies is gradually decreasing, I wanted to strengthen the defense of my body." Mass vaccination against coronavirus, which is now taking place in all countries, including Russia, still raises a huge number of questions. This is not surprising, given the fact that the coronavirus infection with which we are dealing has not been thoroughly studied yet, and the vaccines for it have not gone through all the required stages of clinical trials. Pravda.R asked most burning questions related to the topic of vaccination to Professor of Virology, Chief Researcher at the Gamaleya Research Center for Epidemiology and Microbiology Anatoly Alshtein.




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Elder Jonah of Odessa predicted war between Russia and the West

The third Easter that the Orthodox world celebrated on May 5, 2024, is believed to be a victorious one for Russia, Elder Jonah of Odessa predicted. Victorious Easter in 2024 Elder Jonah of Odessa, the confessor of the Holy Dormition Monastery, who died in 2012 at the age of 87, warned long before the coup in Kyiv about the war that would erupt between a "small state” and Russia. The war, he predicted, would sow "chaos” in the world and spread "spiritual sprite” around Ukraine: "Ukraine and Russia do not exist separately — there is one Holy Rus'. Our enemies decided to divide us in order to destroy Orthodoxy in Little Rus'. God will not let that happen.”




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Queen Elizabeth II, Boris Yeltsin, Vladimir Putin and Yuri Gagarin

Queen Elizabeth II died peacefully in Scotland on September 8. The crown passed to her son, Prince Charles, who took the throne name Charles III. His name is translated into Russian as Karl III, which is due to historic peculiarities of name translations. Elizabeth II and Boris Yeltsin Despite the fact that Elizabeth II ascended the throne back in 1952, the Queen was in no hurry to pay an official visit to the Soviet Union and then Russia. Her historical trip to Russia took place only after the collapse of the USSR. On October 17, 1994, Elizabeth II landed in Moscow. First deputy chairman of the government, Oleg Soskovets, welcomed the Queen. Directly from the airport, they went to the Kremlin in a royal Rolls-Royce, where Russian President Boris Yeltsin was waiting for them.




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Even better with Android 13: Update for DENSO’s BHT-M series

Starting this autumn, the operating system on the handheld series from DENSO, member of the Toyota Group, will be Android 13.




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Exploring differences between bankruptcy in Russia vs. USA

Bankruptcy isn't a topic that anyone likes to discuss. Creditors, debtors, and government officials all get a little queasy at the thought of bankruptcy, but it exists for a reason. And in many situations, it can provide relief when financial friction is heightened. But bankruptcy isn't the same in every country. Laws, rules, and stigmas differ rather significantly - particularly between Russia and the United States. The what and why of bankruptcy Bankruptcy is one of the primary methods by which control over an asset can be transferred to more capable or efficient owners in the instance of market economies. Ultimately, bankruptcy serves three distinct purposes: To solve collective action problems among creditors as they deal with insolvent debtors. To give individual debtors a chance at a "fresh start" when they're overburdened by debt. To preserve/save the financial distress firms have by reorganizing rather than liquidating. Bankruptcy is basically government-sanctioned relief that allows individuals or businesses to have debts forgiven, granted they meet specific criteria and follow certain guidelines. It plays an important role in keeping the larger economic engine hitting on all cylinders. Without bankruptcy, millions of citizens would find themselves impoverished and unable to financially recover from dire situations.




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Hot war between Iran and Israel postponed, but for how long?

The conflict between Iran and Israel did not reach a heated stage this timeб but the parties tested their level of readiness for full-fledged war. Russia could benefit from the conflict in the Middle East, but not in the long term. The market reacted weakly to Iran's attack on Israel on Sunday, April 14. Gold and oil prices showed almost no reaction. The price of gold rose by 0.8 percent to $2,379 per troy ounce, according to trading data on Monday, April 15. At the same time, Brent is trading steadily at $90.4 per barrel, WTI — at $85.6. The conflict appears to have been frozen for a short time unless Israel responds to Iran within a week. The situation is expected to aggravate, but not now — the parties have tested their combat readiness, but preferred not to go full throttle yet.




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Study reveals connection between estrogen levels and a risk of dementia

A research group from the George Institute for Global Health in Australia found out that the estrogen levels can be an indicator of a woman's risk of developing dementia. The researchers suggest that some of the reproductive factors (early or late menstruation, early menopause) are a sign of a higher risk of certain neurological problems connected with cognitive and social skills. According to the PloS Medicine journal, pregnancy and abortion are connected with the lower risk of dementia and other neurological problems.




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A drink that invigorates better than five cups of coffee: the recipe from the famous gymnast

Laysan Utyasheva, a famous gymnast, shared the recipe for a miraculous drink that she swears by. She only learned the recipe for this drink at the beginning of 2022, and since then she has been drinking it every morning to wake up quickly. Utyasheva claims that this drink helps her wake up better than five cups of coffee. In an interview on the YouTube show "Daring Cooking," Laysan Utyasheva explained that one morning, when she was going on a desert excursion, she really needed to wake up quickly, but five cups of coffee didn't do the trick. That's when she tried the new drink, which woke her up much better. The recipe for this drink is simple: add a pinch of turmeric, cinnamon, and lemon to warm water. This drink helps reduce swelling and boost immunity. However, Laysan Utyasheva warned that the taste of the drink is not very pleasant, but it is very effective.




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Hackensack University Medical Center to Hold Annual Diabetes Awareness Month Event




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When There's No One Else to Blame: The Impact of Coworkers' Perceived Competence and Warmth on the Relations between Ostracism, Shame, and Ingratiation




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Diabetes in Young People on the Rise

[Domestic] :
Data shows that the number of young people being diagnosed with diabetes in the country is rising. According to the 2024 data released by the Korean Diabetes Association (KDA) on Sunday, four days ahead of World Diabetes Day, 308-thousand young people, or two-point-two percent of people aged between 19 ...

[more...]




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Top Office Working to Arrange Meeting between Yoon and Trump

[Politics] :
The presidential office says it is working to arrange a meeting between President Yoon Suk Yeol and U.S. President-elect Donald Trump. A senior official told reporters on Tuesday that the top office is in close communication with Trump’s team. This comes as the Yoon administration is preparing for the ...

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Gov't Designates '2024 Hangeul Week' to Celebrate Creation of Korean Alphabet

[Culture] :
The government has designated the seven days from Friday to next Thursday as the "2024 Hangeul Week," on the occasion of the 578th Hangeul Day on October 9 to mark the creation of the Korean alphabet. According to the culture ministry on Monday, a number of cultural events that can help participants better ...

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PM Han in Hangeul Day Speech: Nation Has Duty to Further Develop Korean Alphabet

[Culture] :
Prime Minister Han Duck-soo said the nation has a duty to further develop the Korean alphabet, hangeul, which has gained worldwide recognition as a unique writing system. At a government ceremony marking the 578th Hangeul Day on Wednesday, Han raised concerns about “indifference to the Korean language” ...

[more...]




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What's the Difference Between Liquor and Liqueur?

Liquor and liqueur are spelled so similarly, it's easy to confuse them for being the same. But they're not. So how are they different?




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GraphT–T (V1.0Beta), a program for embedding and visualizing periodic graphs in 3D Euclidean space

Following the work of Day & Hawthorne [Acta Cryst. (2022), A78, 212–233] and Day et al. [Acta Cryst. (2024), A80, 258–281], the program GraphT–T has been developed to embed graphical representations of observed and hypothetical chains of (SiO4)4− tetrahedra into 2D and 3D Euclidean space. During embedding, the distance between linked vertices (T–T distances) and the distance between unlinked vertices (T⋯T separations) in the resultant unit-distance graph are restrained to the average observed distance between linked Si tetrahedra (3.06±0.15 Å) and the minimum separation between unlinked vertices is restrained to be equal to or greater than the minimum distance between unlinked Si tetrahedra (3.713 Å) in silicate minerals. The notional interactions between vertices are described by a 3D spring-force algorithm in which the attractive forces between linked vertices behave according to Hooke's law and the repulsive forces between unlinked vertices behave according to Coulomb's law. Embedding parameters (i.e. spring coefficient, k, and Coulomb's constant, K) are iteratively refined during embedding to determine if it is possible to embed a given graph to produce a unit-distance graph with T–T distances and T⋯T separations that are compatible with the observed T–T distances and T⋯T separations in crystal structures. The resultant unit-distance graphs are denoted as compatible and may form crystal structures if and only if all distances between linked vertices (T–T distances) agree with the average observed distance between linked Si tetrahedra (3.06±0.15 Å) and the minimum separation between unlinked vertices is equal to or greater than the minimum distance between unlinked Si tetrahedra (3.713 Å) in silicate minerals. If the unit-distance graph does not satisfy these conditions, it is considered incompatible and the corresponding chain of tetrahedra is unlikely to form crystal structures. Using GraphT–T, Day et al. [Acta Cryst. (2024), A80, 258–281] have shown that several topological properties of chain graphs influence the flexibility (and rigidity) of the corresponding chains of Si tetrahedra and may explain why particular compatible chain arrangements (and the minerals in which they occur) are more common than others and/or why incompatible chain arrangements do not occur in crystals despite being topologically possible.




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Protocol using similarity score and improved shrink-wrap algorithm for better convergence of phase-retrieval calculation in X-ray diffraction imaging

In X-ray diffraction imaging (XDI), electron density maps of a targeted particle are reconstructed computationally from the diffraction pattern alone using phase-retrieval (PR) algorithms. However, the PR calculations sometimes fail to yield realistic electron density maps that approximate the structure of the particle. This occurs due to the absence of structure amplitudes at and near the zero-scattering angle and the presence of Poisson noise in weak diffraction patterns. Consequently, the PR calculation becomes a bottleneck for XDI structure analyses. Here, a protocol to efficiently yield realistic maps is proposed. The protocol is based on the empirical observation that realistic maps tend to yield low similarity scores, as suggested in our prior study [Sekiguchi et al. (2017), J. Synchrotron Rad. 24, 1024–1038]. Among independently and concurrently executed PR calculations, the protocol modifies all maps using the electron-density maps exhibiting low similarity scores. This approach, along with a new protocol for estimating particle shape, improved the probability of obtaining realistic maps for diffraction patterns from various aggregates of colloidal gold particles, as compared with PR calculations performed without the protocol. Consequently, the protocol has the potential to reduce computational costs in PR calculations and enable efficient XDI structure analysis of non-crystalline particles using synchrotron X-rays and X-ray free-electron laser pulses.




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Relationship between synthesis method–crystal structure–melting properties in co­crystals: the case of caffeine–citric acid

The influence of the crystal synthesis method on the crystallographic structure of caffeine–citric acid co­crystals was analyzed thanks to the synthesis of a new polymorphic form of the cocrystal. In order to com­pare the new form to the already known forms, the crystal structure of the new cocrystal (C8H10N4O2·C6H8O7) was solved by powder X-ray diffraction thanks to synchrotron experiments. The structure determination was performed using `GALLOP', a recently developed hybrid approach based on a local optimization with a particle swarm optimizer, particularly powerful when applied to the structure resolution of materials of pharmaceutical inter­est, com­pared to classical Monte-Carlo simulated annealing. The final structure was obtained through Rietveld refinement, and first-principles density functional theory (DFT) calculations were used to locate the H atoms. The symmetry is triclinic with the space group Poverline{1} and contains one mol­ecule of caffeine and one mol­ecule of citric acid per asymmetric unit. The crystallographic structure of this cocrystal involves different hydrogen-bond associations com­pared to the already known structures. The analysis of these hydrogen bonds indicates that the cocrystal obtained here is less stable than the co­crystals already identified in the literature. This analysis is confirmed by the determination of the melting point of this cocrystal, which is lower than that of the previously known co­crystals.




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Multivalent hy­dro­gen-bonded architectures directed by self-com­plementarity between [Cu(2,2'-bi­imid­az­ole)] and malonate building blocks

The synthesis and structural characterization of four novel supra­molecular hy­dro­gen-bonded arrangements based on self-assembly from mol­ecular `[Cu(2,2'-bi­imid­az­ole)]' modules and malonate anions are pre­sent­ed, namely, tetra­kis­(2,2'-bi­imid­az­ole)di-μ-chlorido-dimal­on­atotricopper(II) penta­hydrate, [Cu3(C3H2O4)2Cl2(C6H6N4)4]·5H2O or [Cu(H2biim)2(μ-Cl)Cu0.5(mal)]2·5H2O, aqua­(2,2'-bi­imid­az­ole)­mal­on­atocopper(II) dihydrate, [Cu(C3H2O4)(C6H6N4)(H2O)]·2H2O or [Cu(H2biim)(mal)(H2O)]·2H2O, bis­[aqua­bis­(2,2'-bi­imid­az­ole)­cop­per(II)] di­mal­on­atodi­perchloratocopper(II) 2.2-hydrate, [Cu(C6H6N4)2(H2O)]2[Cu(C3H2O4)(ClO4)2]·2.2H2O or [Cu(H2biim)2(H2O)]2[Cu(mal)2(ClO4)2]·2.2H2O, and bis­(2,2'-bi­imid­az­ole)­copper(II) bis­[bis­(2,2'-bi­imid­az­ole)(2-carb­oxy­acetato)mal­on­atocopper(II)] tridecahydrate, [Cu(C6H6N4)2][Cu(C3H2O4)(C3H3O4)(C6H6N4)2]·13H2O or [Cu(H2biim)2][Cu(H2biim)2(Hmal)(mal)]2·13H2O. These as­sem­blies are characterized by self-com­plementary donor–acceptor mol­ecular inter­actions, demonstrating a recurrent and distinctive pattern of hy­dro­gen-bonding preferences among the carboxyl­ate, carb­oxy­lic acid and N—H groups of the coordinated 2,2'-bi­imid­az­ole and malonate ligands. Additionally, co­or­din­ation of the carboxyl­ate group with the metallic centre helps sustain re­mark­able supra­molecular assemblies, such as layers, helices, double helix columns or 3D channeled architectures, including mixed-metal com­plexes, into a single structure.




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Crystallographic fragment-binding studies of the Mycobacterium tuberculosis trifunctional enzyme suggest binding pockets for the tails of the acyl-CoA substrates at its active sites and a potential substrate-channeling path between them

The Mycobacterium tuberculosis trifunctional enzyme (MtTFE) is an α2β2 tetrameric enzyme in which the α-chain harbors the 2E-enoyl-CoA hydratase (ECH) and 3S-hydroxyacyl-CoA dehydrogenase (HAD) active sites, and the β-chain provides the 3-ketoacyl-CoA thiolase (KAT) active site. Linear, medium-chain and long-chain 2E-enoyl-CoA molecules are the preferred substrates of MtTFE. Previous crystallographic binding and modeling studies identified binding sites for the acyl-CoA substrates at the three active sites, as well as the NAD binding pocket at the HAD active site. These studies also identified three additional CoA binding sites on the surface of MtTFE that are different from the active sites. It has been proposed that one of these additional sites could be of functional relevance for the substrate channeling (by surface crawling) of reaction intermediates between the three active sites. Here, 226 fragments were screened in a crystallographic fragment-binding study of MtTFE crystals, resulting in the structures of 16 MtTFE–fragment complexes. Analysis of the 121 fragment-binding events shows that the ECH active site is the `binding hotspot' for the tested fragments, with 41 binding events. The mode of binding of the fragments bound at the active sites provides additional insight into how the long-chain acyl moiety of the substrates can be accommodated at their proposed binding pockets. In addition, the 20 fragment-binding events between the active sites identify potential transient binding sites of reaction intermediates relevant to the possible channeling of substrates between these active sites. These results provide a basis for further studies to understand the functional relevance of the latter binding sites and to identify substrates for which channeling is crucial.




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Structure of MltG from Mycobacterium abscessus reveals structural plasticity between composed domains

MltG, a membrane-bound lytic transglycosyl­ase, has roles in terminating glycan polymerization in peptidoglycan and incorporating glycan chains into the cell wall, making it significant in bacterial cell-wall biosynthesis and remodeling. This study provides the first reported MltG structure from Mycobacterium abscessus (maMltG), a superbug that has high antibiotic resistance. Our structural and biochemical analyses revealed that MltG has a flexible peptidoglycan-binding domain and exists as a monomer in solution. Further, the putative active site of maMltG was disclosed using structural analysis and sequence comparison. Overall, this study contributes to our understanding of the transglycosyl­ation reaction of the MltG family, aiding the design of next-generation antibiotics targeting M. abscessus.




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Synthesis and crystal structures of two related Co and Mn complexes: a celebration of collaboration between the universities of Dakar and Southampton

We report the synthesis and structures of two transition-metal complexes involving 2-(2-hy­droxy­phen­yl)benzimidazole (2hpbi – a ligand of inter­est for its photoluminescent applications), with cobalt, namely, bis­[μ-2-(1H-1,3-benzo­diazol-2-yl)phenolato]bis­[ethanol(thio­cyanato)­cobalt(II)], [Co2(C13H9N2O)2(NCS)2(C2H6O)2], (1), and manganese, namely, bis­[μ-2-(1H-1,3-benzo­diazol-2-yl)phenolato]bis­{[2-(1H-1,3-benzo­diazol-2-yl)phenolato](thio­cyanato)­mang­an­ese(III)} dihydrate, [Mn2(C13H9N2O)4(NCS)2]·2H2O, (2). These structures are two recent examples of a fruitful collaboration between researchers at the Laboratoire de Chimie de Coordination Organique/Organic Coordination Chemistry Laboratory (LCCO), University of Dakar, Senegal and the National Crystallography Service (NCS), School of Chemistry, University Southampton, UK. This productive partnership was forged through meeting at Pan-African Conferences on Crystallography and quickly grew as the plans for the AfCA (African Crystallographic Association) developed. This article therefore also showcases this productive partnership, in celebration of the IUCr's 75 year anniversary and the recent inclusion of AfCA as a Regional Associate of the IUCr.




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JUAMI, the joint undertaking for an African materials institute: building materials science research collaborations and capabilities between continents

JUAMI, the joint undertaking for an African materials institute, is a project to build collaborations and materials research capabilities between PhD researchers in Africa, the United States, and the world. Focusing on research-active universities in the East African countries of Kenya, Ethiopia, Tanzania and Uganda, the effort has run a series of schools focused on materials for sustainable energy and materials for sustainable development. These bring together early-career researchers from Africa, the US, and beyond, for two weeks in a close-knit environment. The program includes lectures on cutting-edge research from internationally renowned speakers, highly interactive tutorial lectures on the science behind the research, also from internationally known researchers, and hands-on practicals and team-building exercises that culminate in group proposals from self-formed student teams. The schools have benefited more than 300 early-career students and led to proposals that have received funding and have led to research collaborations and educational non-profits. JUAMI continues and has an ongoing community of alumni who share resources and expertise, and is open to like-minded people who want to join and develop contacts and collaborations internationally.




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Synthesis and crystal structure of the adduct between 2-pyridyl­selenyl chloride and isobutyro­nitrile

The reaction between 2-pyridyl­selenenyl chloride and isobutyro­nitrile results in the formation of the corresponding cationic pyridinium-fused 1,2,4-seleno­diazole, namely, 3-(propan-2-yl)-1,2,4-[1,2,4]selena­diazolo[4,5-a]pyridin-4-ylium chloride, C9H11N2Se+·Cl−, in high yield (89%). The structure of the compound, established by means of single-crystal X-ray analysis at 100 K, has monoclinic (P21/c) symmetry and revealed the presence of bifurcated chalcogen-hydrogen bonding Se⋯Cl−⋯H—Cl, and these non-covalent contacts were analysed by DFT calculations followed by a topological analysis of the electron-density distribution (ωB97XD/6-311++G** level of theory).




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Structural characterization of the supra­molecular complex between a tetra­quinoxaline-based cavitand and benzo­nitrile

The structural characterization is reported of the supra­molecular complex between the tetra­quinoxaline-based cavitand 2,8,14,20-tetra­hexyl-6,10:12,16:18,22:24,4-O,O'-tetra­kis­(quinoxaline-2,3-di­yl)calix[4]resorcinarene (QxCav) with benzo­nitrile. The complex, of general formula C84H80N8O8·2C7H5N, crystallizes in the space group Poverline{1} with two independent mol­ecules in the asymmetric unit, displaying very similar geometrical parameters. For each complex, one of the benzo­nitrile mol­ecules is engulfed inside the cavity, while the other is located among the alkyl legs at the lower rim. The host and the guests mainly inter­act through weak C—H⋯π, C—H⋯N and dispersion inter­actions. These inter­actions help to consolidate the formation of supra­molecular chains running along the crystallographic b-axis direction.




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Crystal structure and Hirshfeld surface analysis of a halogen bond between 2-(allyl­thio)­pyridine and 1,2,4,5-tetra­fluoro-3,6-di­iodo­benzene

The crystal structure of the title 2:1 mol­ecular complex between 2-(allyl­thio)­pyridine and 1,2,4,5-tetra­fluoro-3,6-di­iodo­benzene, C6F4I2·2C8H9NS, at 100 K has been determined in the monoclinic space group P21/c. The most noteworthy characteristic of the complex is the halogen bond between iodine and the pyridine ring with a short N⋯I contact [2.8628 (12) Å]. The Hirshfeld surface analysis shows that the hydrogen⋯hydrogen contacts dominate the crystal packing with a contribution of 32.1%.




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Coupling between 2-pyridyl­selenyl chloride and phenyl­seleno­cyanate: synthesis, crystal structure and non-covalent inter­actions

A new pyridine-fused seleno­diazo­lium salt, 3-(phenyl­selan­yl)[1,2,4]selena­diazolo[4,5-a]pyridin-4-ylium chloride di­chloro­methane 0.352-solvate, C12H9N2Se2+·Cl−·0.352CH2Cl2, was obtained from the reaction between 2-pyridyl­selenenyl chloride and phenyl­seleno­cyanate. Single-crystal structural analysis revealed the presence of C—H⋯N, C—H⋯Cl−, C—H⋯Se hydrogen bonds as well as chalcogen–chalcogen (Se⋯Se) and chalcogen–halogen (Se⋯Cl−) inter­actions. Non-covalent inter­actions were explored by DFT calculations followed by topological analysis of the electron density distribution (QTAIM analysis). The structure consists of pairs of seleno­diazo­lium moieties arranged in a head-to-tail fashion surrounding disordered di­chloro­methane mol­ecules. The assemblies are connected by C—H⋯Cl− and C—H⋯N hydrogen bonds, forming layers, which stack along the c-axis direction connected by bifurcated Se⋯Cl−⋯H—C inter­actions.




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Link between b.c.c.–f.c.c. orientation relationship and austenite morphology in CF8M stainless steel

Slow-cooled CF8M duplex stainless steel is used for critical parts of the primary coolant pipes of nuclear reactors. This steel can endure severe service conditions, but it tends to become more brittle upon very long-term aging (tens of years). Therefore, it is essential to understand its specific microstructure and temporal evolution. As revealed by electron backscatter diffraction (EBSD) analyses, the microstructure consists of millimetre-scale ferritic grains within which austenite lath packets have grown with preferred crystallographic orientations concerning the parent ferritic phase far from the ferrite grain boundaries. In these lath packets where the austenite phase is nucleated, the lath morphology and crystal orientation accommodate the two ferrite orientations. Globally, the Pitsch orientation relationship appears to display the best agreement with the experimental data compared with other classical relationships. The austenite lath packets are parallel plate-shaped laths, characterized by their normal n. A novel methodology is introduced to elucidate the expected relationship between n and the crystallographic orientation given the coarse interfaces, even though n is only partly known from the observation surface, in contrast to the 3D crystal orientations measured by EBSD. The distribution of retrieved normals n is shown to be concentrated over a set of discrete orientations. Assuming that the ferrite and austenite obey the Pitsch orientation relationship, the determined lath normals are close to an invariant direction of the parent phase given by the same orientation relationship.




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Interview in the mausoleum with relics expert Elizabeth Harper

Elizabeth Harper, a relics expert, at Mountain View Cemetery in Altadena; Credit: John Rabe

John Rabe | Off-Ramp®

"Reach a certain moment in your life, and you discover that your days are spent as much with the dead as they are with the living." – Paul Auster

This has been one of my favorite quotes for a long time. To me it means that when you get older and your friends, relatives, and heroes start dying, you have a choice. You can either stop thinking about them because they're dead, giving up, as it were, the pleasure of their company; or you can keep them in your life. To me, that's not denial; it's being realistic.

So, it makes sense that I felt a kindred spirit with Elizabeth Harper, who keeps the website All the Saints You Should Know, when we met at a beautiful mausoleum at Mountain View Cemetery in Altadena to talk about the history of cemeteries, relics, castrated Italian avuncular mummies, and the best spots in Los Angeles to commune healthily with death.

Elizabeth will be part of the team when Atlas Obscura leads tours of The Cathedral of Our Lady of the Angels on Saturday, July 1. It's billed as "A celebration of life, death, architecture, and the patron saint of Los Angeles."

Here are some highlights of my mausoleum conversation with Elizabeth Harper:

At first glance, she says, all of the tombs are very similar.

And that was one of the things, when we started making modern cemeteries, outside the city lines, they wanted them to be regular and not so expressive and macabre. But people leave little things behind. On a lot of these (crypts), you can see a little emblem of something that was important to them. If they were a Mason or if they served in the Army. I like the (cremains) urns that are shaped like books. I have a friend who is a librarian and she was very taken with the idea of being in a book.

Napoleon instituted the Edict of Saint-Cloud, which mandated that cemeteries must be outside city limits (for health reasons) and must be toned-down (for no good reason).

People did not like the edict. There's a very famous poem called Sepulchers by Ugo Foscolo that was written in protest, that said, essentially, looking upon the graves of strong men strengthens the mind and the spirit.

From Slate: Photographing the Real Bodies of Incorrupt Saints, by Elizabeth Harper

Elizabeth often writes about cemeteries and tombs and sometimes posts photos of bodies, which causes a "certain segment" to assume she has no experience with death, or she wouldn't presume to do such a thing.

What I want to put out there is that we have this pervasive idea that we grieve and move on, and this moving on is very important, and I think there are multiple ways to incorporate the idea of death in your life, to get used to the idea, without forgetting, that's more of a way of memorializing. When I take these pictures, I'm very aware that these are real people, and I think of myself, what I will be one day, and people I love, who are already there.

Make sure to listen to our entire interview in the audio player to hear Elizabeth's 3 top spots in Los Angeles to consider the place of death in our lives, and to hear about poor old Uncle Vincent, a neutered naked mummy in a small town in Italy who has a large fan base.

 

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




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'Not Broken But Simply Unfinished': Poet Amanda Gorman Calls For A Better America

Poet Amanda Gorman speaks at the inauguration of U.S. President Biden on the West Front of the U.S. Capitol on Wednesday.; Credit: Alex Wong/Getty Images

Camila Domonoske | NPR

When Amanda Gorman, a 22-year-old poet from Los Angeles, took to the stage on Wednesday, it was immediately clear why the new president had chosen her as his inaugural poet.

Gorman echoed, in dynamic and propulsive verse, the same themes that Biden has returned to again and again and that he wove throughout his inaugural address: unity, healing, grief and hope, the painful history of American experience and the redemptive power of American ideals.

Where Biden said, "We must end this uncivil war," Gorman declared, "We lay down our arms so we can reach out our arms to one another."

And where Biden called for an American story of "love and healing" and "greatness and goodness," Gorman saw strength in pain: "Even as we grieved, we grew," she said.

Gorman opened by acknowledging the reasons why hope can be challenging. "Where can we find light in this never-ending shade?" she asked.

But she continued: "And yet, the dawn is ours before we knew it. Somehow we do it. Somehow we weathered and witnessed a nation that isn't broken but simply unfinished."

She acknowledged the power of her own presence on the stage in "a country and a time where a skinny black girl descended from slaves and raised by a single mother can dream of becoming president, only to find herself reciting for one."

Like Obama inaugural poet Richard Blanco, who invoked the grand sweep of American geography in a call for unity in "One Today," Gorman dedicated a portion to "every corner called our country" from the South to the Midwest. She ended with an invitation to "step out of the shade."

"The new dawn blooms as we free it," she said. "For there is always light, if only we are brave enough to see it – if only we are brave enough to be it."

Gorman was following in the footsteps of poets like Blanco, Robert Frost and Maya Angelou as she composed the poem "The Hill We Climb" for the inauguration.

She also took her cues from orators like Frederick Douglass, Abraham Lincoln and Martin Luther King, Jr. — people who knew a thing or two about calling for hope and unity in times of despair and division.

Gorman told NPR she dug into the works of those speakers (and Winston Churchill, too) to study up on ways "rhetoric has been used for good." Over the past few weeks, she composed a poem that acknowledges the previous president's incitement of violence, but turns toward hope.

"The Hill We Climb" reads, in part:

We've seen a force that would shatter our nation rather than share it,

Would destroy our country if it meant delaying democracy.

And this effort very nearly succeeded.

But while democracy can be periodically delayed,

It can never be permanently defeated.

In this truth, in this faith, we trust.

For while we have our eyes on the future,

history has its eyes on us.

Gorman, like Biden, had a speech impediment as a child. (Biden had a stutter; Gorman had difficulty pronouncing certain sounds.) She told NPR's Steve Inskeep that her speech impediment was one reason she was drawn to poetry at a young age.

"Having an arena in which I could express my thoughts freely was just so liberating that I fell head over heels, you know, when I was barely a toddler," she said.

For Gorman, a former National Youth Poet Laureate, her struggle to speak provided a connection not only to the incoming president, but also to previous inaugural poets, too.

"Maya Angelou was mute growing up as a child and she grew up to deliver the inaugural poem for President Bill Clinton," she says. "So I think there is a real history of orators who have had to struggle with a type of imposed voicelessness, you know, having that stage in the inauguration."

Barack Obama, Bill Clinton and John F. Kennedy were the only presidents in the past who chose to have poems read at their inaugurations. You can read all the previous poems here.

Copyright 2021 NPR. To see more, visit https://www.npr.org.

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




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