cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Orodaliscoides giulianii Gordon 1977
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Luis Potosí, Sonora, Veracruz, Yucatán); Afrotropical and Neotropical regions; United States of America. 99 Orodaliscoides giulianii (Gordon, 1977)
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Synthesis of Unprecedented 4d/4f‐Polypnictogens
Creators: name: Reinfandt, Niklas
name: Schoo, Christoph
name: Dütsch, Luis
name: Köppe, Ralf
name: Konchenko, Sergey N.
name: Scheer, Manfred
name: Roesky, Peter W.
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: COMPLEXES; P-4; REACTIVITY; LIGAND; BOND; lanthanides; molybdenum; polyarsenides; polystibides; reduction
subject: 540 Chemie

description: A series of 4d/4f-polyarsenides, -polyarsines and -polystibines was obtained by reduction of the Mo-pnictide precursor complexes [{(CpMo)-Mo-t(CO)(2)}(2)(mu,eta(2:2)-E-2)] (E=As, Sb; Cp-t=tBu substituted cyclopentadienyl) with two different divalent samarocenes [Cp*Sm-2] and [(Cp-Me4nPr)(2)Sm]. For the reductive conversion of the Mo-stibide only one product was isolated, featuring a planar tetrastibacyclobutadiene moiety as an unprecedented ligand for organometallic compounds. For the corresponding Mo-arsenide a tetraarsacyclobutadiene and a second species with a side-on coordinated As-2(2-) anion was isolated. The latter can be considered as reaction intermediate for the formation of the tetraarsacyclobutadiene.
MOESM1 of Use of a real time continuous glucose monitoring system as an educational tool for patients with gestational diabetes
Creators: name: Alfadhli, Eman
name: Osman, Eman
name: Taghreed Basri
Publisher: name: Figshare
Year: 2016
Subjects: subject: Space Science
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1: Figure S1. CGM report for one patient.
Comedy : Arrabal View of Left-Wing Dictators
Creators: name: Mel, Gussow
name: Gussow, Mel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Théâtre
''L'extravagante réussite de Jésus-Christ, Karl Marx et William Shakespeare''

description: Critique de la pièce ''The Extravagant Triumph of Jesus Christ, Karl Marx and William Shakespeare'' (''L'extravagante réussite de Jésus-Christ, Karl Marx et William Shakespeare'') de Fernando Arrabal, mise en scène par Eduardo Manet, représentée au INTAR Hispanic American Theatre de New York.
description: Reseña de la obra ''The Extravagant Triumph of Jesus Christ, Karl Marx and William Shakespeare'' (''El extravagante triunfo de Jesucristo, Karl Marx y William Shakespeare'') de Fernando Arrabal, dirigida por Eduardo Manet, representada en el INTAR Hispanic American Theatre de Nueva York.
description: Titre de la publication : The New York Times
description: Périodicité : Quotidien.
description: Source: EM-E1-1982-04-08c
description: Source: Localisation de la ressource : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Additional file 7: Figure S3. of Genetic variability and spatial distribution in small geographic scale of Aedes aegypti (Diptera: Culicidae) under different climatic conditions in Northeastern Brazil
Creators: name: Lizandra Steffler
name: Dolabella, Silvio
name: Ribolla, Paulo
name: Dreyer, Carine
name: Edilson Araújo
name: Oliveira, Rosane
name: Martins, Walter
name: Roseli La Corte
Publisher: name: Figshare
Year: 2016
Subjects: subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Expected heterozygosity detected for seven SNP loci in Aedes aegypti populations. (PDF 74 kb)
Photocatalytic Oxidative [2+2] Cycloelimination Reactions with Flavinium Salts: Mechanistic Study and Influence of the Catalyst Structure
Creators: name: Hartman, Tomáš
name: Reisnerova, Martina
name: Chudoba, Josef
name: Kutta, Roger Jan
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: DIMETHYLTHYMINE CYCLOBUTANE DIMER; REDOX-PHOTOSENSITIZED REACTIONS; VISIBLE-LIGHT; ELECTRON-TRANSFER; RING-CLEAVAGE; DIARYLCYCLOBUTANES; REACTIVITY; CYCLOREVERSION; MONOMERIZATION; PHOTOLYASE; cyclobutanes; cycloelimination reactions; electron transfer; photocatalysis; time-resolved spectroscopy
subject: 540 Chemie

description: Flavinium salts are frequently used in organocatalysis but their application in photoredox catalysis has not been systematically investigated to date. We synthesized a series of 5-ethyl-1,3-dimethylalloxazinium salts with different substituents in the positions 7 and 8 and investigated their application in light-dependent oxidative cycloelimination of cyclobutanes. Detailed mechanistic investigations with a coumarin dimer as a model substrate reveal that the reaction preferentially occurs via the triplet-born radical pair after electron transfer from the substrate to the triplet state of an alloxazinium salt. The very photostable 7,8-dimethoxy derivative is a superior catalyst with a sufficiently high oxidation power (E*=2.26 V) allowing the conversion of various cyclobutanes (with E-ox up to 2.05 V) in high yields. Even compounds such as all-trans dimethyl 3,4-bis(4-methoxyphenyl)cyclobutane-1,2-dicarboxylate can be converted, whose opening requires a high activation energy due to a missing pre-activation caused by bulky adjacent substituents in cis-position.
Coordination Behavior of a P4-Butterfly Complex towards Transition Metal Lewis Acids – Preservation versus Rearrangement
Creators: name: Müller, Julian
name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: chelate ligands * cyclo-P4 ligands * P4 butterfly complexes * P4 transformation * phosphorus
subject: 540 Chemie

description: The reactivity of the P4 butterfly complex [{Cp’’’Fe(CO)2}2(µ,η1:1‐P4)] (1, Cp’’’ = η5‐C5H2tBu3) towards divalent Co, Ni and Zn salts is investigated. The reaction with the bromide salts leads to [{Cp’’’Fe(CO)2}2(µ3,η2:1:1‐P4){MBr2}] (M = Co (2Co), Ni (2Ni), Zn (2Zn)) where the P4 butterfly scaffold is preserved. The use of the weakly ligated Co complex [Co(NCCH3)6][SbF6]2, results in the formation of [{(Cp’’’Fe(CO)2)2(µ3,η4:1:1‐P4)}2Co][SbF6]3 (3), representing the second example of a homoleptic‐like octaphospha‐metalla‐sandwich complex. The formation of the threefold positively charged complex 3 occurs via redox processes, which among others also enables the formation of [{Cp’’’Fe(CO)2}4(µ5,η4:1:1:1:1‐P8){Co(CO)2}][SbF6] (4), bearing a rare octaphosphabicyclo[3.3.0]octane unit as a ligand. On the other hand, the reaction with [Zn(NCCH3)4][PF6]2 yields the spiro complex [{(Cp’’’Fe(CO)2)2(µ3,η2:1:1‐P4)}2Zn][PF6]2 (5) under preservation of the initial structural motif.
Oscarinus bottimeri Cartwright 1957
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Chihuahua); United States of America. 100 Oscarinus bottimeri (Cartwright, 1957)
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
MOESM2 of Isolation of a genetically accessible thermophilic xylan degrading bacterium from compost
Creators: name: Daas, Martinus
name: Weijer, Antonius Van De
name: Vos, Willem De
name: Oost, John Van Der
name: Kranenburg, Richard Van
Publisher: name: Figshare
Year: 2016
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology

description: Additional file 2: Table S1. Overview of the number of isolates recovered from the first isolation. Overview of the number of isolates recovered from the first isolation on CTVMy-CMC and CTVM-CMC media after 20 h, 48 h and 88 h. The pH was set at 6.5 and plates were incubated at 65 °C. Dilution series were plated from compost that had been shaken at 150 rpm for 3 h in the same medium and temperature.
NanoBRET binding assay for histamine H2 receptor ligands using live recombinant HEK293T cells
Creators: name: Grätz, Lukas
name: Tropmann, Katharina
name: Bresinsky, Merlin
name: Müller, Christoph
name: Bernhardt, Günther
name: Pockes, Steffen
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: CONSTITUTIVE ACTIVITY; RECEPTOR ANTAGONIST; ACHE INHIBITOR; POTENT; DIZOCILPINE; SELECTIVITY; BRET;
subject: 615 Pharmazie

description: Fluorescence/luminescence-based techniques play an increasingly important role in the development of test systems for the characterization of future drug candidates, especially in terms of receptor binding in the field of G protein-coupled receptors (GPCRs). In this article, we present the establishment of a homogeneous live cell-based BRET binding assay for the histamine H-2 receptor with different fluorescently labeled squaramide-type compounds synthesized in the course of this study. Py-1-labeled ligand 8 (UR-KAT478) was found to be most suitable in BRET saturation binding experiments with respect to receptor affinity (pK(d) = 7.35) and signal intensity. Real-time kinetic experiments showed a full association of 8 within approximately 30 min and a slow dissociation of the ligand from the receptor. Investigation of reference compounds in BRET-based competition binding with 8 yielded pK(i) values in agreement with radioligand binding data. This study shows that the BRET binding assay is a versatile test system for the characterization of putative new ligands at the histamine H-2 receptor and represents a valuable fluorescence-based alternative to canonical binding assays.
MOESM5 of Isolation of a genetically accessible thermophilic xylan degrading bacterium from compost
Creators: name: Daas, Martinus
name: Weijer, Antonius Van De
name: Vos, Willem De
name: Oost, John Van Der
name: Kranenburg, Richard Van
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 5: Figure S2. G. thermodenitrificans T12 transformed with pNW33n (A1) and pNW33n+ pheB (B1). Colonies were sprayed with 100 mM catechol and incubated for 5 min at 55 °C. The colony containing pNW33n did not show any colour formation (A2) while the colony with the pheB gene under control of the constitutive uracil phosphoribosyltransferase promoter (PuppT12) shows a yellow colour (B2) indicating the conversion of catechol to 2-hydroxymuconic semialdehyde.
Additional file 1: Table S1. of Genetic variability and spatial distribution in small geographic scale of Aedes aegypti (Diptera: Culicidae) under different climatic conditions in Northeastern Brazil
Creators: name: Lizandra Steffler
name: Dolabella, Silvio
name: Ribolla, Paulo
name: Dreyer, Carine
name: Edilson Araújo
name: Oliveira, Rosane
name: Martins, Walter
name: Roseli La Corte
Publisher: name: Figshare
Year: 2016
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: ISSR genetic diversity across all seven Aedes aegypti populations from Sergipe, Brazil. (PDF 305 kb)
Additional file 9: of Alcohol-related breast cancer in postmenopausal women â   effect of CYP19A1, PPARG and PPARGC1A polymorphisms on female sex-hormone levels and interaction with alcohol consumption and NSAID usage in a nested case-control study and a randomised controlled trial
Creators: name: Kopp, Tine
name: Jensen, Ditte
name: Ravn-Haren, Gitte
name: Cohen, Arieh
name: Sommer, Helle
name: Dragsted, Lars
name: Tjonneland, Anne
name: Hougaard, David
name: Vogel, Ulla
Publisher: name: Figshare
Year: 2016
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: IRR for BC per 10Â g alcohol/day for combinations of PPARG Pro12Ala and CYP19A1 genotypes. (DOCX 30 kb)
Actuators Displaying Unidirectional Movement
Creators: name: Nandi, Mridula
name: Maiti, Binoy
name: Díaz Díaz, David
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: POLYMER-GEL; HYDROGELS; DRIVEN; ELASTOMER; WALKING; actuators; hydrogel walkers; shape memory polymers; stimuli-responsive; unidirectional motion
subject: 540 Chemie

description: Shape memory polymer actuators have attracted great attention in the past few decades for developing soft robots, artificial muscles, and biomedical implants, among others. Herein, under a tutorial perspective, a series of shape memory actuators that display unidirectional movement upon exposure to specific external stimuli is explored. The mechanistic details associated with the movement of each system are also highlighted. In general, an overview of basic design principles, the chemical structure of molecular switches, the strategies used to achieve such controlled and unidirectional movement, as well as key experimental aspects, is provided. The most critical challenges of the existing devices that limit their practical applicability are also discussed. This is of utmost importance because such limitations must be overcome to fabricate micromotors that can generate complex movements, other than simple stretching/contraction or bending, to perform complex tasks.
Larus niveus Pallas 1811
Creators: name: Mlíkovský, Ji Ř Í
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Laridae
Larus
Larus niveus

description: Larus niveus Pallas, 1811
Pallas (1811: 320) described this form on the basis of specimens collected "in mari boreo et Camtschatico". The taxonomic meaning of Pallas's niveus is somewhat uncertain, although it is most probable that Pallas applied the name to the East Asian form of Larus canus (Stejneger 1885: 73–75; Saunders 1896: 279; but see Bruch 1855: 285 and Saunders 1878: 175). In any case, Larus niveus Pallas, 1811, is a junior primary homonym of Larus niveus Boddaert (1783: 58) = Pagophila eburnea (Phipps, 1774: 187) and of Larus niveus Ödmann (1783: 100) = Pagophila eburnea (Phipps) and thus cannot be used for the East Asian form of Larus canus (Art. 57.2 of the Code).
description: Published as part of Mlíkovský, Ji Ř Í, 2012, Nomenclatural notes on the East Asian form of the Mew Gull Larus canus Linnaeus, 1758 (Aves: Laridae), pp. 65-68 in Zootaxa 3356 on page 65, DOI: 10.5281/zenodo.210789
Oscarinus cabreroi Dellacasa, Dellacasa
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Nuevo León); United States of America. 101 Oscarinus cabreroi Dellacasa, Dellacasa, & Gordon, 2013 [E]
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 7: Table S5. of Identification of stromal ColXÎą1 and tumor-infiltrating lymphocytes as putative predictive markers of neoadjuvant therapy in estrogen receptor-positive/HER2-positive breast cancer
Creators: name: Brodsky, Alexander
name: Jinjun Xiong
name: Dongfang Yang
name: Schorl, Christoph
name: Fenton, Mary
name: Graves, Theresa
name: Sikov, William
name: Resnick, Murray
name: Yihong Wang
Publisher: name: Figshare
Year: 2016
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: Univariate and multivariate logistic regression for prediction of pCR in ER+/HER2 Nâ  =â  74. (DOCX 53 kb)
Oscarinus crassuloides Fall 1907
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Chihuahua, Nuevo León, San Luis Potosí, Sinaloa). 102 Oscarinus crassuloides (Fall, 1907)
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 1: of Mesenchymal stem/stromal cells as a delivery platform in cell and gene therapies
Creators: name: DâSouza, Naomi
name: Rossignoli, Filippo
name: Golinelli, Giulia
name: Grisendi, Giulia
name: Spano, Carlotta
name: Candini, Olivia
name: Osturu, Satoru
name: Catani, Fabio
name: Paolucci, Paolo
name: Horwitz, Edwin
name: Dominici, Massimo
Publisher: name: Figshare
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Link 1.1 Overview of the main experimental findings on the impact of wild-type MSC in diseases associated with the central and peripheral nervous system. Link 1.2 Overview of the main experimental findings on the impact of gene-modified MSC in diseases associated with the central and peripheral nervous system. (DOCX 34 kb)
Larus kamtschatschensis Bonaparte 1857
Creators: name: Mlíkovský, Ji Ř Í
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Laridae
Larus
Larus kamtschatschensis

description: " Gavina kamtschatschensis Bonaparte, 1857 "
Bonaparte (1857: 224) listed " Gavina hinc Larus kamtschatschensis Bp. " in the synonymy of Larus niveus Pallas. The name is thus not available for nomenclatural purposes (Art. 11.6 of the Code) and the provisions of Art. 11.6.1 of the Code do not apply, because the name was already published in earlier works (Bonaparte 1855: 16, 1856: 771). In spite of this, Bonaparte's (1857) kamtschatschensis was used as a valid name for the taxon in recent literature (see above for citations), probably following Peters (1934: 315, footnote) who argued that “a quotation [of a name in the synonymy of an available name] ipso facto renders the name a substitute name for the species in whose synonymy it is quoted. His argument does not match provisions of the Code (ICZN 1999).
description: Published as part of Mlíkovský, Ji Ř Í, 2012, Nomenclatural notes on the East Asian form of the Mew Gull Larus canus Linnaeus, 1758 (Aves: Laridae), pp. 65-68 in Zootaxa 3356 on page 66, DOI: 10.5281/zenodo.210789
Oscarinus indutilis Harold 1874
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Chihuahua, Hidalgo, Michoacán, Querétaro); United States of America. 103 Oscarinus indutilis (Harold, 1874)
Distribution: Mexico (Chiapas, Distrito Federal, Durango, Estado de México, Guerrero, Hidalgo, Jalisco, Michoacán,
Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sonora, Tlaxcala, Veracruz, Zacatecas); Costa Rica;
Guatemala.
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 3: of Mesenchymal stem/stromal cells as a delivery platform in cell and gene therapies
Creators: name: DâSouza, Naomi
name: Rossignoli, Filippo
name: Golinelli, Giulia
name: Grisendi, Giulia
name: Spano, Carlotta
name: Candini, Olivia
name: Osturu, Satoru
name: Catani, Fabio
name: Paolucci, Paolo
name: Horwitz, Edwin
name: Dominici, Massimo
Publisher: name: Figshare
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer

description: Link 3.1 Overview of the main pre-clinical findings on the impact of wild-type MSC in lung diseases. Link 3.2 Overview of the main pre-clinical findings on the impact of gene-modified MSC in lung diseases. (DOCX 24 kb)
Larus canus subsp. stegmanni Brodkorb 1936
Creators: name: Mlíkovský, Ji Ř Í
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Laridae
Larus
Larus canus
Larus canus stegmanni brodkorb, 1936

description: Larus canus stegmanni Brodkorb, 1936
Brodkorb (1936: 122) established Larus canus stegmanni as a new replacement name for Larus canus var. major Middendorff, 1853. Larus canus stegmanni Brodkorb, 1936 is thus a junior objective synonym of Larus canus major Middendorff, 1853.
description: Published as part of Mlíkovský, Ji Ř Í, 2012, Nomenclatural notes on the East Asian form of the Mew Gull Larus canus Linnaeus, 1758 (Aves: Laridae), pp. 65-68 in Zootaxa 3356 on page 66, DOI: 10.5281/zenodo.210789
Additional file 2: of OSCE best practice guidelinesâ  applicability for nursing simulations
Creators: name: Kelly, Michelle
name: Mitchell, Marion
name: Henderson, Amanda
name: Jeffrey, Carol
name: Groves, Michele
name: Nulty, Duncan
name: Glover, Pauline
name: Knight, Sabina
Publisher: name: Figshare
Year: 2016
Subjects: subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Examples of questions in studentsâ   focus groups. (DOCX 24 kb)
Easy Access to Enantiomerically Pure Heterocyclic Silicon-Chiral Phosphonium Cations and the Matched/Mismatched Case of Dihydrogen Release
Creators: name: Fontana, Nicolo
name: Espinosa-Jalapa, Noel Angel
name: Seidl, Michael
name: Bauer, Jonathan O.
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: FRUSTRATED LEWIS-PAIR; SILYLIUM ION; ENANTIOSELECTIVE SYNTHESIS; STEREOGENIC SILANES; ONIUM IONS; HYDROSILYLATION; CARBON; HYDRODEFLUORINATION; ACTIVATION; COORDINATION; chemoselectivity; chiral memory; Lewis acids; phosphonium cations; silylium ions
subject: 540 Chemie

description: Phosphonium ions are widely used in preparative organic synthesis and catalysis. The provision of new types of cations that contain both functional and chiral information is a major synthetic challenge and can open up new horizons in asymmetric cation-directed and Lewis acid catalysis. We discovered an efficient methodology towards new Si-chiral four-membered CPSSi* heterocyclic cations. Three synthetic approaches are presented. The stereochemical sequence of anchimerically assisted cation formation with B(C6F5)(3) and subsequent hydride addition was fully elucidated and proceeds with excellent preservation of the chiral information at the stereogenic silicon atom. Also the mechanism of dihydrogen release from a protonated hydrosilane was studied in detail by the help of Si-centered chirality as stereochemical probe. Chemoselectivity switch (dihydrogen release vs. protodesilylation) can easily be achieved through slight modifications of the solvent. A matched/mismatched case was identified and the intermolecularity of this reaction supported by spectroscopic, kinetic, deuterium-labeling experiments, and quantum chemical calculations.
Additional file 6: of Mesenchymal stem/stromal cells as a delivery platform in cell and gene therapies
Creators: name: DâSouza, Naomi
name: Rossignoli, Filippo
name: Golinelli, Giulia
name: Grisendi, Giulia
name: Spano, Carlotta
name: Candini, Olivia
name: Osturu, Satoru
name: Catani, Fabio
name: Paolucci, Paolo
name: Horwitz, Edwin
name: Dominici, Massimo
Publisher: name: Figshare
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Marine Biology
subject: Cancer

description: Link 6.1 Overview of the main pre-clinical findings on the impact of wild-type MSC in renal diseases. Link 6.2 Overview of the main pre-clinical findings on the impact of gene-modified MSC in renal diseases. (DOCX 29 kb)
Additional file 1: of OSCE best practice guidelinesâ  applicability for nursing simulations
Creators: name: Kelly, Michelle
name: Mitchell, Marion
name: Henderson, Amanda
name: Jeffrey, Carol
name: Groves, Michele
name: Nulty, Duncan
name: Glover, Pauline
name: Knight, Sabina
Publisher: name: Figshare
Year: 2016
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Student survey questions. (DOCX 63 kb)
Oscarinus spiniclypeus Hinton 1934
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Oscarinus
Oscarinus spiniclypeus

description: 104 Oscarinus spiniclypeus (Hinton, 1934) [E]
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 1: of Psychosocial factors associated with early initiation and frequency of antenatal care (ANC) visits in a rural and urban setting in South Africa: a cross-sectional survey
Creators: name: Lorrein Muhwava
name: Neo Morojele
name: London, Leslie
Publisher: name: Figshare
Year: 2016
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Bivariate analyses of associations between all demographic and all psychosocial factors examined against early ANC initiation among women aged 18â  44 years who reported ever being pregnant (N=829): Comparison for early ANC initiation. (DOCX 32 kb)
Otophorus haemorrhoidalis Linnaeus 1758
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Distrito Federal, Estado de México). 105 Otophorus haemorrhoidalis (Linnaeus, 1758)
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 4: of Mesenchymal stem/stromal cells as a delivery platform in cell and gene therapies
Creators: name: DâSouza, Naomi
name: Rossignoli, Filippo
name: Golinelli, Giulia
name: Grisendi, Giulia
name: Spano, Carlotta
name: Candini, Olivia
name: Osturu, Satoru
name: Catani, Fabio
name: Paolucci, Paolo
name: Horwitz, Edwin
name: Dominici, Massimo
Publisher: name: Figshare
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer

description: Link 4.1 Overview of the main pre-clinical findings on the impact of wild-type MSC in liver diseases. Link 4.2 Overview of the main pre-clinical findings on the impact of gene-modified MSC in liver diseases. (DOCX 22 kb)
Additional file 2: of Psychosocial factors associated with early initiation and frequency of antenatal care (ANC) visits in a rural and urban setting in South Africa: a cross-sectional survey
Creators: name: Lorrein Muhwava
name: Neo Morojele
name: London, Leslie
Publisher: name: Figshare
Year: 2016
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Bivariate analyses of associations between all demographic and all psychosocial factors examined against frequency of ANC attendance among women aged 18â  44 years who reported ever being pregnant (N=829): Comparison for adequate ANC attendance. (DOCX 32 kb)
MOESM4 of Composition and genomic organization of arthropod Hox clusters
Creators: name: Pace, Ryan
name: Grbić, Miodrag
name: Nagy, Lisa
Publisher: name: Figshare
Year: 2016
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Evolutionary Biology
subject: Ecology
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 4: Figure S1.   Maximum likelihood phylogenetic tree of arthropod Hox gene-associated miRNAs. Abbreviations used: Dm – Drosophila melanogaster, Ag – Anopheles gambiae, Tc – Tribolium castaneum, Nv – Nasonia vitripennis, Ap – Apis mellifera, Bm – Bombyx mori, Dp – Daphnia pulex, Sm – Strigamia maritima, Mm – Mesobuthus martensii, Is – Ixodes scapularis, Mo – Metaseiulus occidentalis, and Tu – Tetranychus urticae.
Cesium Carbonate Catalyzed Oxa‐Michael Addition of Oximes to Acrylonitrile
Creators: name: Stahl, Jessica
name: Yatham, Veera Reddy
name: Crespi, Stefano
name: König, Burkhard
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: INORGANIC BASE; ISOMERIZATION; ACID; PHOTOISOMERIZATION; ESTERS; Cesium carbonate catalyst; Lewis acids; Oxa-Michael addition; Photochemistry; Stereoisomers
subject: 540 Chemie

description: We report the O-alkylation of oximes with Michael acceptors using Cs2CO3 as the catalyst. The transformation proceeds stereospecifically with retention of the oxime configuration. Irradiation with visible light in the presence of diphenyl anthracene and cerium complexes affects the E to Z configuration ratio of the oxime ether products, but a complete stereocontrol was not achieved. The operationally simple protocol allows the synthesis of various O-alkylated oxime products that are useful precursors for further chemical transformations.
Additional file 2: of Mesenchymal stem/stromal cells as a delivery platform in cell and gene therapies
Creators: name: DâSouza, Naomi
name: Rossignoli, Filippo
name: Golinelli, Giulia
name: Grisendi, Giulia
name: Spano, Carlotta
name: Candini, Olivia
name: Osturu, Satoru
name: Catani, Fabio
name: Paolucci, Paolo
name: Horwitz, Edwin
name: Dominici, Massimo
Publisher: name: Figshare
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer

description: Link 2.1 Overview of the main pre-clinical findings on the impact of wild-type MSC in heart diseases. Link 2.2 Overview of the main pre-clinical findings on the impact of gene-modified MSC in heart diseases. (DOCX 39 kb)
Oxyomus mariateresae Dellacasa, Dellacasa & Gordon 2014
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Chihuahua, Coahuila, Durango, Nuevo León); Holarctic region. 106 Oxyomus mariateresae Dellacasa, Dellacasa & Gordon, 2014 [E]
Distribution: Mexico (Oaxaca).
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
O'SMIRLIK, ILK O'SPIRINLIK VA YOSHLIK DAVRIDA PSIXIK RIVOJLANISH XUSUSIYATLARI
Creators: name: Toxirjonova, Mubina
name: Zaylobiddinova, Mohlaroy
name: Ibragimova, Hurshida
name: Abdurahimova, Shaxnoza
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada o‘smirlik va yoshlik davrlarida psixik rivojlanishning xususiyatlari tahlil qilinadi, bu davrlarda yuzaga keladigan o‘zgarishlar, emotsional va ijtimoiy jarayonlar, shuningdek, yoshlar rivojlanishiga ta’sir qiluvchi asosiy omillar ko‘rib chiqiladi.
Oxyomus setosopunctatus Schmidt 1911
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Oxyomus
Oxyomus setosopunctatus

description: 107 Oxyomus setosopunctatus Schmidt, 1911 [E]
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
Additional file 2: of â  You should go so that others can comeâ  ; the role of facilities in determining an early departure after childbirth in Morogoro Region, Tanzania
Creators: name: McMahon, Shannon
name: Diwakar Mohan
name: Amnesty LeFevre
name: Idda Mosha
name: Mpembeni, Rose
name: Chase, Rachel
name: Baqui, Abdullah
name: Winch, Peter
Publisher: name: Figshare
Year: 2015
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Computational Biology

description: Qualitative Tool. (PDF 117 kb)
Pardalosus pardalis LeConte 1857
Creators: name: Minor, Pablo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy

description: Distribution: Mexico (Estado de México, Hidalgo, Michoacán, Oaxaca, Puebla, Veracruz). 108 Pardalosus pardalis (LeConte, 1857)
description: Published as part of Minor, Pablo, 2017, New state records and updated checklist of Aphodiini and Eupariini (Coleoptera: Scarabaeidae: Aphodiinae) from Mexico, pp. 493-514 in Zootaxa 4244 (4) on page 507, DOI: 10.11646/zootaxa.4244.4.3, http://zenodo.org/record/437241
MOESM6 of Identification and characterization of putative xylose and cellobiose transporters in Aspergillus nidulans
Creators: name: Thaila Reis
name: Pollyne Lima
name: Nádia Parachin
name: Mingossi, Fabiana
name: Oliveira, Juliana Castro
name: Ries, Laure
name: Goldman, Gustavo
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Additional file 6. PCR confirmation of the ∆cltB::cltB + strain. Genomic DNA from A. nidulans wild-type, complementing strains ∆cltB::cltB + (candidates 1, 2, and 3) and deletion strain ∆cltB were isolated and used as template for PCR reactions. (A) Specific primers P70 and P31 were used to amplify a DNA fragment of about 3.1 kb. (B) Specific primers P70 and P37 were used to amplify a DNA fragment of about 3.0 kb. Lanes 1 and 7: C- negative control with no DNA as a template; lanes 2 and 8: genomic DNA from the ∆cltB::cltB candidate 1; lanes 3 and 9: genomic DNA from the ∆cltB::cltB candidate 2; lanes 4 and 10: genomic DNA from the ∆cltB::cltB candidate 3; lanes 5 and 11: genomic DNA from the ∆cltB deletion strain; lanes 6 and 12: genomic DNA from the wild-type strain. The * indicates the candidate containing the homologous integration of the complementing cassette and (C−) the negative control.
NHC-stabilized Parent Arsanylalanes and –gallanes. NHC-stabilisierte Stammverbindungen der Arsanylalane und -gallane
Creators: name: Weinhart, Michael A. K.
name: Seidl, Michael
name: Timoshkin, Alexey Y.
name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: GALLIUM; ALUMINUM; CHEMISTRY; TRIMETHYLGALLIUM; PHOSPHINES; COMPLEXES; ADDUCTS; ANALOGS; BORANE; INDIUM; alanes; arsenic; gallanes; group 13; 15 compounds; Lewis bases
subject: 540 Chemie

description: The synthesis and characterization of the unprecedented compounds IDipp.E ' H2AsH2 (E '=Al, Ga; IDipp=1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) are reported, the first monomeric, parent representatives of an arsanylalane and arsanylgallane, respectively, stabilized only by a LB (LB=Lewis Base). They are prepared by a salt metathesis reaction of KAsH2 with IDipp.E ' H2Cl (E '=Al, Ga). The H-2-elimination pathway through the reaction of AsH3 with IDipp.E ' H-3 (E '=Al, Ga) was found to be a possible synthetic route with some disadvantages compared to the salt metathesis reaction. The corresponding organo-substituted compounds IDipp.GaH2AsPh2 (1) and IDipp.AlH2AsPh2 (2) were obtained by the reaction of KAsPh2 with IDipp.E ' H2Cl (E '=Al, Ga). The novel branched parent compounds IDipp.E ' H(EH2)(2) (E '=Al, Ga; E=P, As) were synthesized by salt metathesis reactions starting from IDipp.E ' HCl2 (E '=Al, Ga). Supporting DFT computations give insight into the different synthetic pathways and the stability of the products.
Radial Basis Function Neural Networks for Formation Control of Unmanned Aerial Vehicles
Creators: name: Bui, Duy-Nam
name: Phung, Manh Duong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper addresses the problem of controlling multiple unmanned aerial vehicles (UAVs) cooperating in a formation to carry out a complex task such as surface inspection. We first use the virtual leader-follower model to determine the topology and trajectory of the formation. A double-loop control system combining backstepping and sliding mode control techniques is then designed for the UAVs to track the trajectory. A radial basis function neural network (RBFNN) capable of estimating external disturbances is developed to enhance the robustness of the controller. The stability of the controller is proven by using the Lyapunov theorem. A number of comparisons and software-in-the-loop (SIL) tests have been conducted to evaluate the performance of the proposed controller. The results show that our controller not only outperforms other state-of-the-art controllers but is also sufficient for complex tasks of UAVs such as collecting surface data for inspection. The source code of our controller can be found at https://github.com/duynamrcv/rbf_bsmc
title: Reseña anual del Sistema de La Haya 2024 - Resumen :
title: Registro internacional de dibujos y modelos industriales.
titleType: Subtitle
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 0

description: En el presente documento informativo se señalan las principales tendencias en el uso del Sistema de La Haya para el registro internacional de dibujos y modelos industriales, administrado por la OMPI.
Excited State Anions in Organic Transformations. Photoangeregte Anionen in organischen Reaktionen
Creators: name: Schmalzbauer, Matthias
name: Marcon, Michela
name: König, Burkhard
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: VISIBLE-LIGHT PHOTOREDOX; SUPER-ELECTRON-DONORS; C-H; PHOTOSENSITIZED OXIDATION; PHOTOCHEMICAL PROCESSES; TRANSIENT MEASUREMENTS; DECATUNGSTATE ANION; PHOTOEXCITED STATES; HYDRATED ELECTRONS; PHTHALIMIDE ANION; excited anions; electron transfer; photoredox catalysis; photoreduction; synthetic photochemistry
subject: 540 Chemie

description: Utilizing light is a smart way to fuel chemical transformations as it allows the energy to be selectively focused on certain molecules. Many reactions involving electronically excited species proceed via open-shell intermediates, which offer novel and unique routes to expand the hitherto used synthetic toolbox in organic chemistry. The direct conversion of non-prefunctionalized, less activated compounds is a highly desirable goal to pave the way towards more sustainable and atom-economic chemical processes. Photoexcited closed-shell anions have been shown to reach extreme potentials in single electron transfer reactions and reveal unusual excited-state reactivity. It is, therefore, surprising that their use as a reagent or photocatalyst is limited to a few examples. In this Review, we briefly discuss the characteristics of anionic photochemistry, highlight pioneering work, and show recent progress which has been made by utilizing photoexcited anionic species in organic synthesis.
Trigonisca Moure 1950
Creators: name: Engel, Michael S.
name: Rozen, Jerome G.
name: Sepúlveda-Cano, Paula A.
name: Smith, Corey Shepard
name: Thomas, Jennifer C.
name: Ospina-Torres, Rodulfo
name: Gonzalez, Victor H.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Trigonisca

description: Trigonisca Genus Group
The Trigonisca genus group clade, comprising the extant genus Trigonisca and the extinct genus Exebotrigona, is united by the combination of a minute body size, with a length typically 4.5 mm or frequently less, and a forewing length of 4 mm or less; a distinctly broadened base to the marginal cell, with a basal angle (angle formed within the marginal cell between pterostigmal margin and r-rs) of 68°–90°, and the marginal cell, at tangent of pterostigmal apex, broader than submarginal cell area; the posterior margin of the metatibia nodulose or tuberculate, sometimes weakly so (apparently not nodulose in Exebotrigona), owing to prominent bristle bases; and the setae of the inner surface of the metabasitarsus arranged in transverse rows (Michener, 1990, 2007).
Presently, there are 45 species contained in the Trigonisca genus group, including the species described herein, and these are arranged into four subgenera, which are sometimes treated as distinct genera (e.g., Moure, 1950). The analysis of Rasmussen and Cameron (2010) indicated the likelihood that Leurotrigona s.l. is paraphyletic, and so is treated as two distinct groups herein. Leurotrigona s.str. and Exochotrigona, new subgenus, each with two species (Pedro and Camargo, 2009; see below), while Celetrigona has four species (Camargo and Pedro, 2009) and Trigonisca s.str. (= Dolichotrigona Moure) has 37 (Albuquerque, 1990; Ayala, 1999; Albuquerque and Camargo, 2007; Camargo and Pedro, 2005; Alvarez and Lucia, 2018; herein). Five species of the group are currently recorded as occurring within Colombia: Trigonisca (Exochotrigona) crispula Pedro and Camargo, T. (Celetrigona) longicornis (Friese), T. (Trigonisca) schulthessi (Friese), T. (T.) buyssoni (Friese), and T. (T.) graeffei (Friese) (Nates-Parra, 2001; Smith-Pardo, 2003; Camargo and Pedro, 2009; Pedro and Camargo, 2009). Examination of numerous workers of Trigonisca in Colombian copal (Engel, personal obs.), individuals of which are not uncommonly encountered as inclusions, reveal that they are universally T. schulthessi, of which the injudiciously described T. ameliae Penney (Penney et al., 2013) is a junior synonym (new synonymy).
description: Published as part of Engel, Michael S., Rozen, Jerome G., Sepúlveda-Cano, Paula A., Smith, Corey Shepard, Thomas, Jennifer C., Ospina-Torres, Rodulfo & Gonzalez, Victor H., 2019, Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae), pp. 1 in American Museum Novitates 2019 (3942) on page 1, DOI: 10.1206/3942.1, http://zenodo.org/record/5370200
Diels–Alder reactions and electrophilic substitutions with atypical regioselectivity enable functionalization of terminal rings of anthracene
Creators: name: Huynh, Vinh Ngoc
name: Leitner, Michael
name: Bhattacharyya, Aditya
name: Uhlstein, Lisa
name: Kreitmeier, Peter
name: Sakrausky, Patrick
name: Rehbein, Julia
name: Reiser, Oliver
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: CATALYTIC-ACTIVITY; STEREOSELECTIVITY; BROMINATION;
subject: 540 Chemie

description: Reversing the regioselectivity of the renowned Diels-Alder reaction by overriding the usual thermodynamic and kinetic governing factors has always been a formidable challenge to synthetic organic chemists. Anthracenes are well-known to undergo [4 + 2]-cycloadditions with dienophiles at their 9,10-positions (central ring) over 1,4-positions (terminal ring) guided by the relative aromatic stabilization energy of the two possible products, and also by harboring the largest orbital coefficients of the highest occupied molecular orbital (HOMO) at the 9,10-positions. We, herein, report a 1,4-selective [4 + 2]-cycloaddition strategy of 9,10-unsubstituted anthracenes by installing electron-donating substituents on the terminal rings which is heretofore unprecedented to the best of our knowledge. The developed synthetic strategy does not require any premeditated engagement of the 9,10-positions either with any sterically bulky or electron-withdrawing substituents and allows delicate calibration of the regioselectivity by modulating the electron-donating strength of the substituents on the terminal rings. Likewise, the regioselective functionalization of the terminal anthracene ring in electrophilic substitution reactions is demonstrated. A mechanistic rationale is offered with the aid of detailed computational studies, and finally, synthetic applications are presented.