ape Which airport has the cheapest duty free alcohol? By www.flyertalk.com Published On :: Wed, 23 Oct 2024 18:54:25 GMT For example, which airport has cheapest MARTELL CORDON BL.COG.40% 1L? Btw I will visit soon ZRH, CPH, FRA and SIN. Any suggestion is highly appreciated. Full Article Information Desk
ape MAPEI's Installation Solutions Powers Red Bull Half Court Global Tournament By www.floortrendsmag.com Published On :: Thu, 07 Nov 2024 10:00:00 -0500 MAPEI Corporation's advanced sports-flooring products transformed the center court of the 2024 Red Bull Half Court tournament into a work of art designed by Carolina De La Cruz Rodriguez. Full Article
ape Performance Accessories - PerimeterSeal® Tape By www.floortrendsmag.com Published On :: Thu, 24 Oct 2024 09:00:00 -0400 PerimeterSeal® Tape seals the perimeter of any room, safeguarding both the flooring’s surface at the perimeter and the subfloor against spills and moisture damage. Full Article
ape Koehler Introduces Flexible Paper Packaging Options for Tea By www.foodengineeringmag.com Published On :: Fri, 20 Sep 2024 09:03:00 -0400 The different types of flexible packaging paper cover a range of requirements — from good knurling and heat‐sealing properties with or without a barrier function, to teabag wrapping and flow packs. Full Article
ape UPM Specialty Papers Joins Forces with Michelman on Recyclable Paper Packaging By www.foodengineeringmag.com Published On :: Tue, 29 Oct 2024 08:54:00 -0400 UPM Specialty Papers has used coatings from Michelman to develop recyclable paper packaging designed for food applications. Full Article
ape UPM Specialty Papers Partners with Eastman on Paper Food Packaging with Compostable Coating By www.foodengineeringmag.com Published On :: Wed, 06 Nov 2024 10:34:00 -0500 The solution integrates Eastman’s biobased and compostable Solus performance additives with BioPBS polymer to form a thin coating on UPM’s compostable and recyclable barrier base papers. Full Article
ape Hamilton Process Analytics Unveils White Paper By www.foodengineeringmag.com Published On :: Wed, 20 Dec 2023 15:53:25 -0500 The white paper addresses key challenges in cultivated meat production. Full Article
ape APE Grupo Architecture Awards Opens Call for Project Submissions By www.floortrendsmag.com Published On :: Thu, 19 Sep 2024 09:00:00 -0400 The second edition of the APE Grupo Architecture Awards kicked off on September 18 with the aim of recognizing and highlighting the work of architects and interior decorators who have used APE Grupo ceramics in their projects. November 12 is the deadline to submit projects. Full Article
ape Hanian Airlines from Budapest to China (SZX/PVG) for less then 190 one way By www.flyertalk.com Published On :: Sat, 02 Nov 2024 12:24:29 GMT Dates from november to beginning of december. Eg: https://www.google.com/travel/flights/search?tfs=CBwQAhojEgoyMDI0LTEyLTA2agcIARIDQlVEcgwIAhIIL20vMDZ3amZAAUgBcAGCAQsI____________AZgBArIBAhgB&tfu=IgA&authuser=0 Book via:... Full Article Mileage Run Deals
ape Paboco Unveils Market-Ready Paper Bottle and Cap By www.foodengineeringmag.com Published On :: Wed, 09 Oct 2024 08:53:30 -0400 The collaboration between Paboco and Blue Ocean Closures is available today and expected to reach consumers in early 2025. Full Article
ape Landscapes as represented in textbooks and in students' imagination: stability, generational gap, image retention and recognisability. By ezproxy.scu.edu.au Published On :: Sun, 01 Aug 2021 00:00:00 -0400 Children's Geographies; 08/01/2021(AN 152310091); ISSN: 14733285Academic Search Premier Full Article SLOVENIA RF values (Chromatography) SCHOOL children LANDSCAPES IMAGINATION IMAGE recognition (Computer vision) SECONDARY school students TEXTBOOKS
ape Belittled Citizens: The cultural politics of childhood on Bangkok's margins: edited by Giuseppe Bolotta, Copenhagen: NIAS Press, 2021, 250 pp., hardback £70.00/paperback £22.50, ISBN 978-87-7694-300-4 hardback/ISBN 978-87-7694-301-1 paperbac By ezproxy.scu.edu.au Published On :: Tue, 01 Feb 2022 00:00:00 -0500 Children's Geographies; 02/01/2022(AN 154441562); ISSN: 14733285Academic Search Premier Full Article BANGKOK (Thailand) COPENHAGEN (Denmark) POLITICS & culture SLUMS SOCIAL status SOCIAL sciences education CITIZENS PAPERBACKS
ape Adolescents in Humanitarian Crisis. Displacement, Gender and Social Inequalities: Nicola Jones, Kate Pincock, Bassam Abu Hamad (Editors), 2021, Abingdon, New York: Routledge 238 pp., paperback £27.99/e-book open access content, ISBN 978-0-367-76461-6 By ezproxy.scu.edu.au Published On :: Tue, 01 Aug 2023 00:00:00 -0400 Children's Geographies; 08/01/2023(AN 167303416); ISSN: 14733285Academic Search Premier Full Article NEW York (State) EQUALITY ELECTRONIC books TEENAGERS GENDER inequality YOUNG adults INTERNALLY displaced persons
ape 'They'll be the ones that's looking after it' – unravelling institutional factors that shape children's participation in urban planning for informal settlements. By ezproxy.scu.edu.au Published On :: Sun, 01 Oct 2023 00:00:00 -0400 Children's Geographies; 10/01/2023(AN 173035624); ISSN: 14733285Academic Search Premier Full Article SUVA (Fiji) URBAN planning PARTICIPATION ENVIRONMENTAL infrastructure RESEARCH questions INSTITUTIONAL logic
ape Latina students' experiences in public schools: by Susan McCullough, London, Routledge, Published, December 13, 2021, 166 pp., £29.24 (Paperback), ISBN 9781032239453; £97.50 (Hardback), ISBN 9781138313712. By ezproxy.scu.edu.au Published On :: Thu, 01 Aug 2024 00:00:00 -0400 Children's Geographies; 08/01/2024(AN 178911400); ISSN: 14733285Academic Search Premier Full Article HISPANIC American students EARLY childhood education SCHOOL failure TEENAGE girls GENDER essentialism SCHOOLGIRLS YOUNG women
ape Children, education and geography rethinking intersections: edited by Hammond, Lauren, Mary Biddulph, Simon Catling, and John H. McKendrick, New York, Routledge, 2022, 280 pp., £102.00 (hardback), £31.44 (paperback), ISBN: 978-1-03216-432-8. By ezproxy.scu.edu.au Published On :: Tue, 01 Oct 2024 00:00:00 -0400 Children's Geographies; 10/01/2024(AN 180134750); ISSN: 14733285Academic Search Premier Full Article CLIMATE change education STUDENT attitudes GEOGRAPHY education YOUNG adults TEACHER-student relationships
ape Four Quebec Paper Excellence Group Mills Recognized in 2023 Health and Safety Rankings By resolutefp.mediaroom.com Published On :: Tue, 27 Aug 2024 07:00:00 -0400 Full Article
ape Paper Excellence Group's Lana Wilhelm Receives Women in Forestry Award of Excellence By resolutefp.mediaroom.com Published On :: Thu, 19 Sep 2024 06:58:00 -0400 Full Article
ape Paper Excellence Group Donates $100,000 to Local Communities Impacted by Hurricane Helene By resolutefp.mediaroom.com Published On :: Fri, 04 Oct 2024 09:01:00 -0400 Full Article
ape Paper Excellence Group Rebrands as Domtar By resolutefp.mediaroom.com Published On :: Thu, 24 Oct 2024 06:00:00 -0400 Full Article
ape Domtar Acquires Iconex Paper’s Point-of-Sale Receipt Business in North America By resolutefp.mediaroom.com Published On :: Mon, 04 Nov 2024 15:36:00 -0500 Full Article
ape Calico Wallpaper Makes Gold With Alchemy and Enchantment By design-milk.com Published On :: Mon, 14 Oct 2024 15:00:00 +0000 Calico Wallpaper and educator Janene Ping collaborate on two natural-dye wall mural collections: Alchemy and Enchantment. Full Article Art Home Furnishings Interior Design Main Calico Calico Wallpaper Janene Ping mural mural art murals Nicholas Cope Rachel Cope wall art wall mural wall murals wallcovering wallcoverings wallpaper wallpaper art wallpaper collection
ape Building Youth Resilience: How Invisible Work Shapes Stronger Futures By ifp.nyu.edu Published On :: Fri, 01 Nov 2024 22:28:38 +0000 The post Building Youth Resilience: How Invisible Work Shapes Stronger Futures was curated by information for practice. Full Article Video
ape 2024 state of cities climate finance: The landscape of urban climate finance By ifp.nyu.edu Published On :: Tue, 05 Nov 2024 17:08:42 +0000 The post 2024 state of cities climate finance: The landscape of urban climate finance was curated by information for practice. Full Article Grey Literature
ape Take 5: Colorful Buttercream, Custom Shoes, and Landscapes in Tatreez By design-milk.com Published On :: Wed, 09 Oct 2024 15:00:01 +0000 Design Milk Associate Editor Aria Lee joins Take 5 sharing delectable cakes, Mondrian-esque stained glass, a shoe collaboration + more! Full Article Art Home Furnishings Main Style + Fashion Faig Ahmed Hicoboci Jordan Nassar Mali Bakes Sevilla Smith Take 5
ape General call for papers: Journal of Diversity in Higher Education By ifp.nyu.edu Published On :: Fri, 11 Oct 2024 00:39:12 +0000 The post General call for papers: Journal of Diversity in Higher Education was curated by information for practice. Full Article Calls & Consultations
ape General call for papers: Consulting Psychology Journal By ifp.nyu.edu Published On :: Fri, 18 Oct 2024 23:42:32 +0000 The post General call for papers: Consulting Psychology Journal was curated by information for practice. Full Article Calls & Consultations
ape General call for papers: The Humanistic Psychologist By ifp.nyu.edu Published On :: Thu, 24 Oct 2024 23:47:27 +0000 The post General call for papers: The Humanistic Psychologist was curated by information for practice. Full Article Calls & Consultations
ape The Bookshelf: Meredith Tate Takes On The Difficult Subject of Rape By www.nhpr.org Published On :: Fri, 14 Feb 2020 18:05:11 -0500 In Concord-native Meredith Tate’s new novel, a young woman is kidnapped after a drug deal goes badly. To summon help, she has an out-of-body experience. Her quest to give her sister clues about where she is and how she got there serves as the central action of the book, which is called The Last Confession of Autumn Casterly. Tate spoke about it with NHPR's Peter Biello. Full Article
ape Rain tapers off Monday with another round coming Tuesday By www.mprnews.org Published On :: Mon, 04 Nov 2024 13:45:00 +0000 A cold front marching through the region pushes scattered showers and a few thunderstorms eastward across Wisconsin through Monday morning and into the afternoon. Rain chances return from the south overnight and spill into a wet Tuesday. Full Article
ape How generational differences shape workplaces By www.mprnews.org Published On :: Mon, 04 Nov 2024 18:52:00 +0000 Gen Z does a good job taking sick days, unlike their older coworkers. MPR News host Angela Davis talks about how the mix of generations in today’s workforce is redefining how we work. Full Article
ape Boris Yeltsin tried to escape to US Embassy as USSR was falling apart By english.pravda.ru Published On :: Mon, 20 Aug 2018 17:36:00 +0300 Source: REX/Shutterstock Alexander Rutskoy, Russian Air Force General, was the man who brought Boris Yeltsin to power. Rutskoy has unveiled a few interesting facts from the history of Russia. The general said that Boris Yeltsin was drinking a lot during the coup in 1991 and tried to escape to the US Embassy. Rutskoy also said that after the collapse o the Soviet Union, Yeltsin called George H. Bush to report the news to the USA. When serving as vice president, Rutskoy defended independence and Constitution of the Russian Federation, especially in the days of the State Emergency Committee. Later, however, he changed his opinions. In an interview with the Moskovsky Komsomolets newspaper, Alexander Rutskoy spoke about the days, when the Soviet Union stopped its existence. He said that there was an urgent need to remove Mikhail Gorbachev from power, appoint Nikolai Ryzhkov as acting president of the USSR, prepare a new candidate and then hold popular elections for the President of the USSR and the Congress of People's Deputies of the USSR.Rutskoy said that he did not have even a shadow of doubt about whom to support in the situation of those days. "I swore as an 18-year-old boy to serve the Motherland and the people, and I have never showed disloyalty to the oath," he said.Today, Rutskoy does not conceal the fact that he had believed Yeltsin's promises about the defense of Russian interests. The vice president of the RSFSR, unlike those, who signed the Belavezha Accords, virtually had no access to the governance of the country. During the interview, Rutskoy said that Boris Yeltsin had tried to escape to the US Embassy. He also said that Gorbachev was not isolated from the world during the days of the State Emergency Committee. Gorbachev could be contacted via secret communication channels, and he was perfectly aware of what was going on. Rutskoy said that Gorbachev simply escaped prior to the signing of the new Unified Treaty. Gorbachev, Rutskoy stated, was executing the mission to destroy the country. It was Rutskoy, who escorted Yeltsin to Minsk, only to find out later that the USSR would be dissolved. Rutskoy wrote a notice to terminate his powers of the vice president, but his initiative did not move forward. During the ratification of Belavezha Accords, he voted against it. Rutskoy and Yeltsin went separate ways when the latter appointed Gaidar, Chubais and Nechayev for key economic positions in the country. The three officials eventually made Russia experience an economic collapse. According to Rutskoy, the putsch in 1991 took place because Gorbachev betrayed his homeland and the people who were close to him in his team. The State Emergency Committee made a humble attempt to keep the Union afloat. The putsch in 1993 was a coup, which took place with the support of the United States and Europe. "There was an intelligence report saying that the White House in Moscow would be attacked. Yeltsin suddenly decided to go to the US Embassy. I was trying to stop him, I was telling him that he should not be doing it. I was asking him whether he was aware of the things that he was doing. When they signed the Belovezha Accorda, the first person, whom Yeltsin informed that the Soviet Union was no more, was George H. Bush," Rutskoy admitted. "Yeltsin was maintaining a contact with the US leadership to inform the Americans about successes of the unilateral surrender in the Cold War," he added.The book of memoirs by George H.W. Bush titled "A World Transformed" also says that Boris Yeltsin was cooperating with the USA for the collapse of the Soviet Union. "On December 8, 1991, Boris Yeltsin from a hunting lodge near Brest, in Belarus. Only recently elected President of the Russian Republic, Yeltsin had been meeting with Leonid Kravchuk, President of Ukraine, and Stanislav Shushkevich, President of Belarus. "Today, a very important event took place in our country," Yeltsin said. "I wanted to inform you myself before you learned it from the press." Then he told me the news: the Presidents of Russia, Belarus and ukraine had decided to dissolve the Soviet Union," George H.W. Bush wrote. According to George H.W. Bush, Yeltsin's tone changed after he finished reading his text. The signed documents, he continued, formulated the provisions that the USA had been advocating. Bush was unwilling to express either his approval or disapproval, so he simply responded with "I understand." Full Article History traditions
ape Evolving landscape of LNG trade: Opportunities and challenges for Russia and India By english.pravda.ru Published On :: Tue, 24 Sep 2024 10:47:00 +0300 India's strategic pivot towards liquefied natural gas (LNG) is set to redefine its energy landscape, especially amid the shifting dynamics of global energy trade. Earlier this year, GAIL (India) Ltd, the country's largest government-owned natural gas company, secured a 10-year LNG purchase agreement with Vitol, a global energy trader with extensive operations in Russia. This deal, which begins in 2026, will ensure approximately 1 million metric tons (mt) of LNG annually, including gas sourced from Russia. This agreement is instrumental for India as it strives to elevate natural gas consumption to 15% of its energy mix by 2030. India's LNG imports have demonstrated considerable variability, reflecting its dependence on this critical energy source. Imports surged to 3,516 million standard cubic meters (MMSCM) in May but fell to 2,794 MMSCM in July. Over the first four months of the year, LNG accounted for a substantial 12,269 MMSCM out of a total gas consumption of 24,210 MMSCM, underscoring the country's reliance on imported LNG to meet its growing energy needs. This volatility highlights the strategic importance of agreements, like the one with Vitol and the one between Novatek and Deepak Fertilisers, signed in February 2023, for both spot and long-term supply contract markets in securing energy stability. Russia, for its part, has been adapting its LNG export strategy in response to global pressures and the evolving market landscape. In the first half of 2024, Russian LNG imports to Europe rose by 11% from last year, with Russia supplying 69.95 million mt so far. Despite a general decline in European gas consumption and a shift toward long-term contracts, Russian LNG remained a significant portion of imports, with France alone seeing a 110% increase. This demonstrates the resilience of Russian LNG in maintaining its foothold in European markets. Additionally, Russia's LNG exports to China have also seen growth, with 1.648 million mt shipped in the first quarter of 2024-a 2% increase from the previous year. Full Article Opinion
ape Australian emu escapes into cold Russian woods By english.pravda.ru Published On :: Thu, 31 Oct 2024 17:22:00 +0300 An ostrich farm in the village of Pazhga in the Komi Republic, became famous in Russia due to its runaway Australian emu named Vasya (a short for Vasily). On the night of October 26, the bird escaped from its enclosure and ran into the forest. Dozens of volunteers and hunters were trying to bring Vasya back home for five days. The news of his escape into the wild made national headlines. During these days, the emu was running about the forest avoiding all traps and tricks that the volunteers could come up with. The bird would walk away from nets, and it was impossible to attract him with food - the emu can do away without food for up to 40 days. Full Article Society
ape Paper packaging sales stabilising, as decline slows from 17% in Q1 to 12% in Q2, and to 9% in August By www.retailtechnologyreview.com Published On :: Fri, 13 Nov 8240 17:28:37 +0000 New data from Demica, the fintech, reveals that the paper packaging sector in key markets across Europe and North America is showing signs of stabilisation. Full Article Internet Retailing Critical Issues
ape Highly competitive landscape for new POS software projects By www.retailtechnologyreview.com Published On :: Mon, 13 Nov 800 17:02:45 -0001 Competition between vendors to provide POS software remains fierce, with more than 125 suppliers working with major retail and hospitality chains, according to Global POS Software 2023, the latest study from strategic research and consulting firm RBR Data Services, a division of Datos Insights. Full Article EPoS Systems Data Capture Critical Issues
ape PPDS brings more ‘zero power’ choice and opportunity to business with new 13” Philips Tableaux 4150 ePaper displays at InfoComm 2024 By www.retailtechnologyreview.com Published On :: PPDS, the exclusive global provider of Philips Professional Displays and complementary hardware and software solutions, has announced the latest evolution of its multi-award-winning ePaper with Android SoC signage range, launching the new 13” Philips Tableaux 4150 at InfoComm 2024. Full Article Digital Signage Exhibitions and Events
ape Ape to Man By www.talkorigins.org Published On :: A link to a review of Ape to Man, a new documentary from the History Channel. Full Article
ape Couchbase Capella advancements fuel development of adaptive applications By www.retailtechnologyreview.com Published On :: Couchbase, Inc., the cloud database platform company, has launched Capella Columnar on AWS, which helps organisations streamline the development of adaptive applications by enabling real-time data analysis alongside operational workloads within a single database platform. Full Article Data Capture Retail Supply Chain
ape Smoking vapes develops EVALI, cancer and dental problems By english.pravda.ru Published On :: Thu, 29 Aug 2024 17:58:00 +0300 Smoking vapes and electronic cigarettes may lead to the development of a new lung disease that was dubbed as EVALI (E-cigarette and Vaping use-Associated Lung Injury). Research works to study EVALI slowed down with the onset of the coronavirus pandemic due to the similarity of symptoms, whereas the detection rate stopped growing, the Russian Health Ministry said. Symptoms of EVALI similar to those of COVID-19 Symptoms of the new disease are in many ways similar to symptoms of COVID-19. They include: Full Article Health
ape How EVs, Environmental Disasters & Even Online Shopping Shape the Future of Transportation By www.newswise.com Published On :: Fri, 01 Nov 2024 17:15:26 EST "Tell me the numbers, I'll take care of the politics." Shashi Nambisan, director of the Transportation Research Center (TRC) at UNLV, recalled a pivotal discussion in the early 1990s with then-County Commissioner Bruce L. Woodbury about the transportation needs of a region on the precipice of substantial growth. Full Article
ape Transport Begins for College Entrance Exam Papers By world.kbs.co.kr Published On :: Mon, 11 Nov 2024 10:38:51 +0900 [Domestic] : The nation’s annual college entrance exam will be distributed across the nation from Monday to Wednesday ahead of Thursday’s College Scholastic Ability Test(CSAT). The education ministry said the CSAT question and answer sheets will be transported to all 85 test zones across the nation starting ...[more...] Full Article Domestic
ape Yoon to Attend APEC Summit in Peru, G20 Summit in Brazil By world.kbs.co.kr Published On :: Tue, 12 Nov 2024 14:56:54 +0900 [Politics] : President Yoon Suk Yeol will visit Peru and Brazil between this coming Thursday and next Thursday to attend the Asia-Pacific Economic Cooperation and Group of 20 summits. During his trip to South America, Yoon will also work to arrange bilateral meetings with the leaders of Japan and China while also ...[more...] Full Article Politics
ape Yoon to Attend APEC, G-20 Summits By world.kbs.co.kr Published On :: Tue, 12 Nov 2024 15:48:38 +0900 [Politics] : President Yoon Suk Yeol is set to depart Thursday for an eight-day, five-night trip to attend the Asia-Pacific Economic Cooperation(APEC) summit in Peru and the Group of 20(G-20) summit in Brazil. Principal deputy national security adviser Kim Tae-hyo said during a briefing at the presidential office on ...[more...] Full Article Politics
ape Kyodo: S. Korea, US, Japan Coordinating Trilateral Summit during APEC By world.kbs.co.kr Published On :: Tue, 12 Nov 2024 10:32:36 +0900 [International] : South Korea, the United States and Japan are reportedly coordinating plans for a trilateral summit on the sidelines of the Asia-Pacific Economic Cooperation(APEC) summit, set for this week in Peru. Quoting a Japanese government official, Japan’s Kyodo News said Monday that coordination is underway to hold ...[more...] Full Article International
ape Kyodo: Yoon, Ishiba May Hold Summit on Margins of APEC Meeting By world.kbs.co.kr Published On :: Tue, 12 Nov 2024 14:53:29 +0900 [International] : Media outlets in Japan have reported that talks are underway for a summit between Japanese Prime Minister Shigeru Ishiba and President Yoon Suk Yeol on the margins of the Asia-Pacific Economic Cooperation(APEC) Summit in Peru. Japan’s Kyodo News said the two sides are discussing details of the potential ...[more...] Full Article International
ape Aquarius Moon Traits: Understanding the Emotional Landscape By entertainment.howstuffworks.com Published On :: Sat, 09 Nov 2024 05:30:03 -0500 Explore the Aquarius Moon's traits, emotional depth, and how it influences relationships, creativity, and personal growth in astrology. Unlock its mysterious power. Full Article
ape Polymorph sampling with coupling to extended variables: enhanced sampling of polymorph energy landscapes and free energy perturbation of polymorph ensembles By journals.iucr.org Published On :: 2024-10-15 A novel approach to computationally enhance the sampling of molecular crystal structures is proposed and tested. This method is based on the use of extended variables coupled to a Monte Carlo based crystal polymorph generator. Inspired by the established technique of quasi-random sampling of polymorphs using the rigid molecule constraint, this approach represents molecular clusters as extended variables within a thermal reservoir. Polymorph unit-cell variables are generated using pseudo-random sampling. Within this framework, a harmonic coupling between the extended variables and polymorph configurations is established. The extended variables remain fixed during the inner loop dedicated to polymorph sampling, enforcing a stepwise propagation of the extended variables to maintain system exploration. The final processing step results in a polymorph energy landscape, where the raw structures sampled to create the extended variable trajectory are re-optimized without the thermal coupling term. The foundational principles of this approach are described and its effectiveness using both a Metropolis Monte Carlo type algorithm and modifications that incorporate replica exchange is demonstrated. A comparison is provided with pseudo-random sampling of polymorphs for the molecule coumarin. The choice to test a design of this algorithm as relevant for enhanced sampling of crystal structures was due to the obvious relation between molecular structure variables and corresponding crystal polymorphs as representative of the inherent vapor to crystal transitions that exist in nature. Additionally, it is shown that the trajectories of extended variables can be harnessed to extract fluctuation properties that can lead to valuable insights. A novel thermodynamic variable is introduced: the free energy difference between ensembles of Z' = 1 and Z' = 2 crystal polymorphs. Full Article text
ape Periodic diffraction from an aperiodic monohedral tiling – the Spectre tiling. Addendum By journals.iucr.org Published On :: 2024-10-08 This article describes the diffraction pattern (2-periodic Fourier transform) from the vertices of a large patch of the recently discovered `Spectre' tiling – a strictly chiral aperiodic monotile. It was reported recently that the diffraction pattern of the related weakly chiral aperiodic `Hat' monotile was 2-periodic with chiral plane-group symmetry p6 [Kaplan et al. (2024). Acta Cryst. A80, 72–78]. The diffraction periodicity arises because the Hat tiling is a systematic aperiodic deletion of vertices from the 2-periodic hexagonal mta tiling. Despite the similarity of the Hat and Spectre tilings, the Spectre tiling is not aligned with a 2-periodic lattice, and its diffraction pattern is non-periodic with chiral point symmetry 6 about the origin. Full Article text
ape The effect of transport apertures on relay-imaged, sharp-edged laser profiles in photoinjectors and the impact on electron beam properties By journals.iucr.org Published On :: 2024-06-06 In a photoinjector electron source, the initial transverse electron bunch properties are determined by the spatial properties of the laser beam on the photocathode. Spatial shaping of the laser is commonly achieved by relay imaging an illuminated circular mask onto the photocathode. However, the Gibbs phenomenon shows that recreating the sharp edge and discontinuity of the cut profile at the mask on the cathode is not possible with an optical relay of finite aperture. Furthermore, the practical injection of the laser into the photoinjector results in the beam passing through small or asymmetrically positioned apertures. This work uses wavefront propagation to show how the transport apertures cause ripple structures to appear in the transverse laser profile even when effectively the full laser power is transmitted. The impact of these structures on the propagated electron bunch has also been studied with electron bunches of high and low charge density. With high charge density, the ripples in the initial charge distribution rapidly wash-out through space charge effects. However, for bunches with low charge density, the ripples can persist through the bunch transport. Although statistical properties of the electron bunch in the cases studied are not greatly affected, there is the potential for the distorted electron bunch to negatively impact machine performance. Therefore, these effects should be considered in the design phase of accelerators using photoinjectors. Full Article text