Congrats are in order! Soccer star Alex Morgan has a lot to celebrate ahead of Mother's Day. The Women's World Cup champion shared the special and exciting news that she...

Its Christmas yet again! It's a time of the year to bury the past, re-live good thoughts and look forward to th

Education is considered to a basic necessity. It helps us to face the world and it widens our mind and improves the quality of our thinking. Education provides us better quality of life. From an independent study it has been shown that...

“Knowledge breeds gallantry”. This saying was propagated by some eminent scholars in the mid 17th century in order to foster realisations regarding the significance of learning. Many people are trapped with illusions...

This brochure looks at the corruption, labour, human rights and environmental risks associated with the organisation of large sporting events. It describes how OECD instruments and expertise in implementation of complex projects can help host governments, event organisers and their business partners ensure that the world of sport remains associated with the traditional values of excellence and fair play.

In order to safeguard their competitiveness in an increasingly digitalised global economy, governments across OECD and emerging economies are implementing a range of policy measures/programmes to support investment in and use of robotics. This paper assesses the extent to which robotics impact the organisation of production through offshoring and backshoring.

This event focused on the implication of COP24 outcomes and the implementation of the Rulebook, as well as on upcoming work on unresolved issues such as Article 6. Discussions covered Common Tabular Format (CTF) for climate finance and tracking progress towards the mitigation targets and updating and implementing NDCs, with a particular attention to the power sector and carbon markets.

The Secretary-General met with Chancellor Angela Merkel and the Heads of International Organisations to discuss the global economic outlook as well as policies to boost growth and employment in Europe.

The Organisation for Economic Cooperation and Development (OECD) and J.P. Morgan through its Foundation today launched a new project “Adapting to Changing Skills Needs” to fill knowledge gaps in the assessment of skill mismatches and to identify international best practice in addressing them.

The role of international organisations (IOs) is critical in the development of rules and standards that can help advance the well-being of citizens in an increasingly globalised world.

Key results from the partnership of international organisations for effective international rulemaking

This brochure looks at the corruption, labour, human rights and environmental risks associated with the organisation of large sporting events. It describes how OECD instruments and expertise in implementation of complex projects can help host governments, event organisers and their business partners ensure that the world of sport remains associated with the traditional values of excellence and fair play.

The number and length of school holidays differs significantly across OECD countries, meaning the number of instructional days in primary and secondary education ranges from 162 days a year in France to more than 200 days in Israel and Japan.

Today’s schools must equip students with the knowledge and skills they’ll need to succeed in an uncertain, constantly changing tomorrow. But many schools look much the same today as they did a generation ago, and too many teachers are not developing the pedagogies and practices required to meet the diverse needs of 21st-century learners.

Schools nowadays are required to learn faster than ever before in order to deal effectively with the growing pressures of a rapidly changing environment.

The conference will cover developments and the state-of-the art of environmental microbiology, as it is applied for biotechnological purposes, and the role of genetic engineering of micro-organisms intended for use in the environment, now and in the near future.

Micro-organisms play a fundamental role in the environment. Yet their role is the result of complex biogeochemical processes by consortia of micro-organisms and the function of individual species is not clear in many cases. This publication provides an overview of the current situation and relevant developments in environmental microbiology.

The OECD has published guidance to facilitate the ecological risk assessment of organometallic and organic metal salt substances. A strategy is presented based on key steps that first consider the fate of these substances in the environment, the identification of moieties of concern, and subsequently the selection of an appropriate path forward to either assess the inorganic moiety and/or the individual substance.

The Good Morning Britain presenter has previously accused the Duchess of Sussex of having 'ditched' her own relatives and splitting her husband Prince Harry from the Royal Family.

The Good Morning Britain presenter has previously accused the Duchess of Sussex of having 'ditched' her own relatives and splitting her husband Prince Harry from the Royal Family.

Piers Morgan has slammed Sam Smith for 'causing a Brit Awards shake-up' after it was revealed the 'best male' and 'best female' categories could be abolished.

Instagram is now removing coronavirus-related content and accounts from recommendations and 'Explore' option unless it is posted by or belonging to credible health organizations.

Alex Morgan welcomed her first child with husband Servando Carrasco, 31, a daughter named Charlie, on Thursday.

The absence of World No. 1 Magnus Carlsen took many by surprise. To clear the air, website promoters chess.com released a statement but ended up hurting none other than Carlsen.

Alex Morgan, who helped the United States women's soccer team to World Cup and Olympic titles, has become the newest mom in the national squad after giving birth to her first child.

Archives, Room Use Only - TK5283.I58 1927

Archives, Room Use Only - TK5262.R46 1924

Archives, Room Use Only - HE7045.C46 1952

Archives, Room Use Only - U165.F73 1924

A fringe Hindu outfit on Monday organised a 'yagna' ahead of talks between United States President Donald Trump and Prime Minister Narendra Modi.

The title compound, hexa­kis­(2-methyl-1H-imidazol-3-ium) hepta­molybdate 2-methyl-1H-imidazole disolvate dihydrate, (C4H7N2)6[Mo7O24]·2C4H6N2·2H2O, was prepared from 2-methyl­imidazole and ammonium hepta­molybdate tetra­hydrate in acid solution. The [Mo7O24]6− hepta­molybdate cluster anion is accompanied by six protonated (C4H7N2)+ 2-methyl­imidazolium cations, two neutral C4H6N2 2-methyl­imidazole mol­ecules and two water mol­ecules of crystallization. The cluster consists of seven distorted MoO6 octa­hedra sharing edges or vertices. In the crystal, the components are linked by N—H⋯N, N—H⋯O, O—H⋯O, N—H⋯(O,O) and O—H⋯(O,O) hydrogen bonds, generating a three-dimensional network. Weak C—H⋯O inter­actions consolidate the packing.

Twelve 4-(4-meth­oxy­phen­yl)piperazin-1-ium salts containing organic anions have been prepared and structurally characterized. The monohydrated benzoate, 4-fluoro­benzoate, 4-chloro­benzoate and 4-bromo­benzoate salts, C11H17N2O+·C7H5O2−·H2O (I), C11H17N2O+·C7H4FO2−·H2O (II), C11H17N2O+·C7H4ClO2−·H2O (III), and C11H17N2O+·C7H4BrO2−·H2O (IV), respectively, are isomorphous and all exhibit disorder in the 4-meth­oxy­phenyl unit: the components are linked by N—H⋯O and O—H⋯O hydrogen bond to form chains of rings. The unsolvated 2-hy­droxy­benzoate, pyridine-3-carboxyl­ate and 2-hy­droxy-3,5-di­nitro­benzoate salts, C11H17N2O+·C7H5O3− (V), C11H17N2O+·C6H4NO2− (VI) and C11H17N2O+·C7H3N2O7− (VII), respectively, are all fully ordered: the components of (V) are linked by multiple N—H⋯O hydrogen bonds to form a chain of rings; those of (VI) are linked into a three-dimensional framework by a combination of N—H⋯O, C—H⋯O and C—H⋯N hydrogen bonds and those of (VII), where the anion has a structure reminiscent of the picrate anion, are linked into a three-dimensional array by N—H⋯O and C—H⋯O hydrogen bonds. The hydrogensuccinate and hydrogenfumarate salts, C11H17N2O+·C4H5O4− (VIII) and C11H17N2O+·C4H3O3− (IX), respectively, are isomorphous, and both exhibit disorder in the anionic component: N—H⋯O and O—H⋯O hydrogen bonds link the ions into sheets, which are further linked by C—H⋯π(arene) inter­actions. The anion of the hydrogenmaleate salt, C11H17N2O+·C4H3O3− (X), contains a very short and nearly symmetrical O⋯H⋯O hydrogen bond, and N—H⋯O hydrogen bonds link the anions into chains of rings. The ions in the tri­chloro­acetate salt, C11H17N2O+·C2Cl3O2− (XI), are linked into simple chains by N—H⋯O hydrogen bonds. In the hydrated chloranilate salt, 2C11H17N2O+·C6Cl2O42−·2H2O (XII), which crystallizes as a non-merohedral twin, the anion lies across a centre of inversion in space group P21/n, and a combination of N—H⋯O and O—H⋯O hydrogen bonds generates complex sheets. Comparisons are made with the structures of some related compounds.

The non-porous three-dimensional structure of poly[(μ5-2-amino­benzene-1,4-di­carboxyl­ato)(μ6-oxalato)(oxomium)europium(III)], [Eu(C8H5NO4)(C2O4)(H3O)]n or [EuIII(NH2–BDC)(ox)(H3O)]n (NH2–BDC2− = 2-amino­terephthalate and ox2− = oxalate) is constructed from two-dimensional layers of EuIII–carboxyl­ate–oxalate, which are connected by NH2–BDC2− pillars. The basic structural unit of the layer is an edge-sharing dimer of TPRS-{EuIIIO9}, which is assembled through the ox2− moiety. The intra­layer void is partially occupied by TPR-{EuIIIO6} motifs. Weak C—H⋯O and strong, classical intra­molecular N—H⋯O and inter­molecular O—H⋯O hydrogen-bonding inter­actions, as well as weak π–π stacking inter­actions, affix the organic pillars within the framework. The two-dimensional layer can be simplified to a uninodal 4-connected sql/Shubnikov tetra­gonal plane net with point symbol {44.62}.

The crystal structure of the polymeric title compound, catena-poly[[[di­aqua­lithium]-μ-γ-cyclo­dextrin(1−)-[aqua­lithium]-μ-γ-cyclo­dextrin(1−)] pentadecahydrate], {[Li2(C48H79O40)2(H2O)3]·15H2O}n, consists of deprotonated γ-cyclo­dextrin (CD) mol­ecules assembled by lithium ions into metal–organic ribbons that are cross-linked by multiple O—H⋯O hydrogen bonds into sheets extending parallel to (0overline11). Within a ribbon, one Li+ ion is coordinated by one deprotonated hydroxyl group of the first γ-CD torus and by one hydroxyl group of the second γ-CD torus as well as by two water mol­ecules. The other Li+ ion is coordinated by one deprotonated hydroxyl and by one hydroxyl group of the second γ-CD torus, by one hydroxyl group of the first γ-CD torus as well as by one water mol­ecule. The coordination spheres of both Li+ cations are distorted tetra­hedral. The packing of the structure constitute channels along the a axis. Parts of the hy­droxy­methyl groups in cyclo­dextrin molecules as well as water mol­ecules show two-component disorder. Electron density associated with additional disordered solvent mol­ecules inside the cavities was removed with the SQUEEZE [Spek (2015). Acta Cryst. C71, 9–18] routine in PLATON. These solvent mol­ecules are not considered in the given chemical formula and other crystal data. Five out of the sixteen hy­droxy­methyl groups and one water mol­ecule are disordered over two sets of sites.

The structural dimension of metal–organic frameworks (MOFs) is of great importance in defining their properties and thus applications. In particular, 2D layered MOFs are of considerable interest because of their useful applications, which are facilitated by unique structural features of 2D materials, such as a large number of open active sites and high surface areas. Herein, this work demonstrates a methodology for the selective synthesis of a 2D layered MOF in the presence of the competitive formation of a 3D MOF. The ratio of the reactants, metal ions and organic building blocks used during the reaction is found to be critical for the selective formation of a 2D MOF, and is associated with its chemical composition. In addition, the well defined and uniform micro-sized 2D MOF particles are successfully synthesized in the presence of an ultrasonic dispersion. Moreover, the laminated 2D MOF layers are directly synthesized via a modified bottom-up lamination method, a combination of chemical and physical stimuli, in the presence of surfactant and ultrasonication.

A three-dimensional hydrogen-bonded network based on a rare mok topology has been constructed using an organic molecule synthesized in the solid state. The molecule is obtained using a supramolecular protecting-group strategy that is applied to a solid-state [2+2] photodimerization. The photodimerization affords a novel head-to-head cyclo­butane product. The cyclo­butane possesses tetrahedrally disposed cis-hydrogen-bond donor (phenolic) and cis-hydrogen-bond acceptor (pyridyl) groups. The product self-assembles in the solid state to form a mok network that exhibits twofold interpenetration. The cyclo­butane adopts different conformations to provide combinations of hydrogen-bond donor and acceptor sites to conform to the structural requirements of the mok net.

The three probes of the structure of matter (X-rays, neutrons and electrons) in biology have complementary properties and strengths. The balance between these three probes within their strengths and weaknesses is perceived to change, even dramatically so at times. For the study of combined states of order and disorder, NMR crystallography is also applicable. Of course, to understand biological systems the required perspectives are surely physiologically relevant temperatures and relevant chemical conditions, as well as a minimal perturbation owing to the needs of the probe itself. These remain very tough challenges because, for example, cryoEM by its very nature will never be performed at room temperature, crystallization often requires nonphysiological chemical conditions, and X-rays and electrons cause beam damage. However, integrated structural biology techniques and functional assays provide a package towards physiological relevance of any given study. Reporting of protein crystal structures, and their associated database entries, could usefully indicate how close to the biological situation they are, as discussed in detail in this feature article.

A lipid droplet (LD) core of a cell consists mainly of neutral lipids, triacylglycerols and/or steryl esters (SEs). The structuration of these lipids inside the core is still under debate. Lipid segregation inside LDs has been observed but is sometimes suggested to be an artefact of LD isolation and chemical fixation. LD imaging in their native state and in unaltered cellular environments appears essential to overcome these possible technical pitfalls. Here, imaging techniques for ultrastructural study of native LDs in cellulo are provided and it is shown that LDs are organized structures. Cryo soft X-ray tomography and deep-ultraviolet (DUV) transmittance imaging are showing a partitioning of SEs at the periphery of the LD core. Furthermore, DUV transmittance and tryptophan/tyrosine auto-fluorescence imaging on living cells are combined to obtain complementary information on cell chemical contents. This multimodal approach paves the way for a new label-free organelle imaging technique in living cells.

The Inorganic Crystal Structure Database (ICSD) is the world's largest database of fully evaluated and published crystal structure data, mostly obtained from experimental results. However, the purely experimental approach is no longer the only route to discover new compounds and structures. In the past few decades, numerous computational methods for simulating and predicting structures of inorganic solids have emerged, creating large numbers of theoretical crystal data. In order to take account of these new developments the scope of the ICSD was extended in 2017 to include theoretical structures which are published in peer-reviewed journals. Each theoretical structure has been carefully evaluated, and the resulting CIF has been extended and standardized. Furthermore, a first classification of theoretical data in the ICSD is presented, including additional categories used for comparison of experimental and theoretical information.

An error in the article by Gao, Zhang, Zhu, Wu, Mo, Pan, Liu & Jiang [J. Appl. Cryst. (2019), 52, 637–642] is corrected.

This paper reports on the two-scale fractal structure of chromatin organization in the nucleus of the HeLa cell.

A software package for Grazing Incident Wide Angle X-ray Scattering (GIWAXS) geared toward weakly ordered materials, including: scattering intensity normalization/uncertainty, scattering pattern indexing, and refractive shift correction.

In fact, researchers have learned, the detached male pedipalps transfer more sperm faster after copulation is ended by the female rather than the male.

The post Male spider’s sexual organs work fastest only when a female breaks them off appeared first on Smithsonian Insider.

Scientists from the Smithsonian and University of British Columbia have discovered a sensory organ in the chin of rorqual whales that communicates to the brain. It orchestrates the dramatic adjustments needed in jaw position and throat-pouch expansion to make lunge feeding successful

The post Scientists discover sensory organ in baleen whales that choreographs movement of their massive jaws and throat-pouch appeared first on Smithsonian Insider.

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disk surrounding a young […]

The post Complex Organic Molecules Discovered in Infant Star System appeared first on Smithsonian Insider.