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Autore: Grafiati

Pubblicato: 25 luglio 2024

Ultima modifica: 26 luglio 2024

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1

Heppke, Eva Maria, Steffen Klenner, Oliver Janka, Rainer Pöttgen e Martin Lerch. "Mechanochemical Synthesis of Cu 2 MgSn 3 S 8 and Ag 2 MgSn 3 S 8". Zeitschrift für anorganische und allgemeine Chemie 646, n. 1 (3 gennaio 2020): 5–9. http://dx.doi.org/10.1002/zaac.201900190.

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2

Hu, Gao-Bo, Da-Wei Jiang, Jiang-Yan Li, Yan Rao e Li-Yuan Jiang. "Crystal structure of (5′S,8′S)-3-(2,5-dimethylphenyl)-8-methoxy-3-nitro-1-azaspiro[4.5]decane-2,4-dione". Acta Crystallographica Section E Crystallographic Communications 71, n. 4 (14 marzo 2015): o238—o239. http://dx.doi.org/10.1107/s2056989015004715.

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The title compound, C18H22N2O5, was synthesized by nitrification of its enol precursor. The pyrrolidine ring plane adopts a twisted conformation about the C—C bond linking the spiro centre and the C=O group remote from the N atom. It makes dihedral angles of 71.69 (9) and 88.92 (9)°, respectively, with the benzene ring plane and the plane defined by the four C atoms that form the seat of the of the cyclohexane chair. At the spiro centre, the NH group is axial and the C=O group is equatorial with respect to the cyclohexane ring. In the crystal, inversion dimers linked by pairs of N—H...O hydrogen bonds generateR22(8) loops. The dimers are linked by C—H...O interactions, generating a three-dimensional network.

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3

Linek, Vaclav. "A S(3, {4, 6}, 18) with a subdesign S(3, 4, 8) does not exist". Journal of Combinatorial Designs 17, n. 1 (gennaio 2009): 36–38. http://dx.doi.org/10.1002/jcd.20176.

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4

Brzezinski, Krzysztof, Ryszard Lazny, Michal Sienkiewicz, Sławomir Wojtulewski e Zbigniew Dauter. "(2R)-8-Benzyl-2-[(S)-hydroxy(phenyl)methyl]-8-azabicyclo[3.2.1]octan-3-one". Acta Crystallographica Section E Structure Reports Online 68, n. 1 (17 dicembre 2011): o149—o150. http://dx.doi.org/10.1107/s1600536811053190.

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5

W. Schneller, Stewart, Xueqiang Yin, Qi Chen, Wei Ye e Chong Li. "8-Methyl Derivatives of Aristeromycin, Neplanocin, 3-Deazaneplanocin and Related Analogs". HETEROCYCLES 95, n. 1 (2017): 445. http://dx.doi.org/10.3987/com-16-s(s)36.

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6

Kumaraswamy, Gullapalli, Kukkadapu Ankamma, Nimmakayala Raghu e Dasa RamBabu. "Catalytic Enantioselective Synthesis of (S)-8-Hydroxy-3-[(S)-2′-hydroxypentyl]-6-methoxyisochroman-1-one, (S)-3-Hydroxy-3-[(S)-2′-hydroxypentyl]-6,8-dimethoxyisochroman-1-one, and Their Epimers". European Journal of Organic Chemistry 2014, n. 10 (30 gennaio 2014): 2168–73. http://dx.doi.org/10.1002/ejoc.201301708.

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7

Force, Guillaume, Amélie Pérot, Régis Guillot, Vincent Gandon e David Leboeuf. "Formal [8+3]-Annulation between Azaoxyallyl Cations and Tropones". Synthesis 52, n. 04 (11 novembre 2019): 553–64. http://dx.doi.org/10.1055/s-0039-1690745.

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For the first time, azaoxyallyl cations were used as cycloaddition partners with tropone derivatives to access nitrogen-containing [7,6]-fused bicycles in a metal-free process under mild reaction conditions. DFT computations have been used to shed light on the selectivities observed during the course of the reaction.

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8

Odarčenko, Michail. "Tři zastavení s Jaroslavem Vávrou (21. 3. 1930 – 27. 8. 2022)". Новая русистика, n. 2 (2022): 88–89. http://dx.doi.org/10.5817/nr2022-2-11.

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9

Garin, J., E. Melendez, F. L. Merchan e T. Tejero. "A Facile Synthesis of 8-Arylamino- and 8-Hetarylaminopurines and their 1- and 3-Deaza Analogs". Synthesis 1985, n. 09 (1985): 867–70. http://dx.doi.org/10.1055/s-1985-35505.

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10

Berghöfer, R., e J. Hölzl. "Isolation of I 3′, II 8-Biapigenin (Amentoflavone) fromHypericum perforatum". Planta Medica 55, n. 01 (febbraio 1989): 91. http://dx.doi.org/10.1055/s-2006-961839.

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11

Majetich, George, e Jeremy L. Grove. "Synthesis of 8-Hydroxyisochromenes and 8-Hydroxyisocoumarins from 3-Ethoxycyclohex-2-en-1-one". HETEROCYCLES 84, n. 2 (2012): 983. http://dx.doi.org/10.3987/com-11-s(p)73.

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12

Wang, Jian-Feng, Mei-Juan Fang, Yu-Fen Zhao, Yao-Jian Huang, Wen-Jin Su e Seik Weng Ng. "8-Hydroxy-(S)-3-methyl-1-oxoisochromane-5-carboxylic acid (5-carboxymellein)". Acta Crystallographica Section E Structure Reports Online 59, n. 8 (31 luglio 2003): o1208—o1209. http://dx.doi.org/10.1107/s1600536803016313.

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13

Wang, Jian-Feng, Yong-Jie Zhang, Yao-Jian Huang, Wen-Jin Su, Yang Lu, Yu-Fen Zhao e Seik Weng Ng. "Methyl 8-hydroxy-(S)-3-methyl-1-oxoisochromane-5-carboxylate (5-methoxycarbonylmellein)". Acta Crystallographica Section E Structure Reports Online 59, n. 8 (31 luglio 2003): o1233—o1234. http://dx.doi.org/10.1107/s1600536803016490.

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14

Delwaide, P. J. "S-8-3 Contribution of spinal Ib interneurone to muscle tone disorders". Electroencephalography and Clinical Neurophysiology/Electromyography and Motor Control 97, n. 4 (settembre 1995): S16. http://dx.doi.org/10.1016/0924-980x(95)92474-z.

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15

Sanov, Andrei, Emily R. Grumbling, Daniel J. Goebbert e Lori M. Culberson. "Photodetachment anisotropy for mixed s-p states: 8/3 and other fractions". Journal of Chemical Physics 138, n. 5 (7 febbraio 2013): 054311. http://dx.doi.org/10.1063/1.4789811.

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16

Pellet-Rostaing, Stéphane, Marc Lemaire, Stéphanie Gracia e Estelle Métay. "Synthesis of 8-Oxo-3-acetylenic-5,6,7,8-tetrahydroindolizines via Sonogashira Coupling". Synlett 2009, n. 16 (3 settembre 2009): 2617–20. http://dx.doi.org/10.1055/s-0029-1217953.

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17

Lewis, Christopher N., Peter L. Spargo e James Staunton. "A Convenient Synthesis of 3-Substituted 8-Methoxy-and 6,8-Dimethoxyisocoumarins". Synthesis 1986, n. 11 (1986): 944–46. http://dx.doi.org/10.1055/s-1986-31832.

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18

Winkler, Jeffrey, e Mark Fitzgerald. "Stereoselective Synthesis of 8-Substituted 6-Azabicyclo[3.2.1]octan-3-ones". Synlett 2009, n. 04 (16 febbraio 2009): 562–64. http://dx.doi.org/10.1055/s-0028-1087561.

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19

Nasri, Nassima, Badreddine Meftah, Abdelkader Moumen e Hicham Saber. "Fractional $ 3/8 $-Simpson type inequalities for differentiable convex functions". AIMS Mathematics 9, n. 3 (2024): 5349–75. http://dx.doi.org/10.3934/math.2024258.

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<abstract><p>The main objective of this study is to establish error estimates of the new parameterized quadrature rule similar to and covering the second Simpson formula. To do this, we start by introducing a new parameterized identity involving the right and left Riemann-Liouville integral operators. On the basis of this identity, we establish some fractional Simpson-type inequalities for functions whose absolute value of the first derivatives are s-convex in the second sense. Also, we examine the special cases $ m = 1/2 $ and $ m = 3/8 $, as well as the two cases $ s = 1 $ and $ \alpha = 1 $, which respectively represent the classical convexity and the classical integration. By applying the definition of convexity, we derive larger estimates that only used the extreme points. Finally, we provide applications to quadrature formulas, special means, and random variables.</p></abstract>

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20

Pan, Yaping, Yan Zhang, Chao Fan, Yu Zhang, Shikai Yan, Huizi Jin e Weidong Zhang. "Lignans from the Whole Plants of Hedyotis uncinella". Natural Product Communications 11, n. 8 (agosto 2016): 1934578X1601100. http://dx.doi.org/10.1177/1934578x1601100821.

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Two new lignans, named (7R, 8 S)-balanophonin (1) and (7R, 8 S)-tomentosanan A (2), together with eight known lignans, burselignan (3), (+)-isolariciresinol (4), (+)-lyoniresinol (5), 5-methoxy-(+)-isolariciresinol (6), (-)-syringaresinol (7), (+)-epipinoresinol (8), (-)-(7′ S, 8 S, 8′ R)-4,4′-dihydroxy-3, 3′, 5, 5′-tetramethoxy-7, 9-epoxy-lignan-9′-ol-7-one (9), and (-)-(7 R, 8 S)-dihydrodehydrodiconiferyl alcohol (10) were isolated from the whole plants of Hedyotis uncinella Hook. et Arn. Structures of these compounds were elucidated through 1H NMR, 13C NMR, 2D NMR, ESI-MS and CD data.

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21

Silva, Juliano Quarteroli, Mario Ivo Tavares de Souza, Paulo de Souza Gonçalves e Raquel Nakazato Pinotti. "Sistemas de explotação de seringueira utilizados em clones asiáticos Prang Besar no Oeste paulista". Pesquisa Agropecuária Brasileira 42, n. 7 (luglio 2007): 949–55. http://dx.doi.org/10.1590/s0100-204x2007000700006.

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O objetivo deste trabalho foi avaliar o desempenho produtivo e os aspectos fisiológicos e econômicos de quatro clones asiáticos Prang Besar de seringueira [Hevea brasiliensis (Willd. ex A. Juss.) Muell. Arg.], sob diferentes sistemas de sangria. O experimento foi instalado na Fazenda Santa Gilda, Município de Guararapes, SP, em delineamento de blocos ao acaso, com parcelas subdivididas no tempo. Os tratamentos principais foram os clones PB 260, PB 235, PB 330 e PB 217, submetidos a nove sistemas de sangria: ½S d/3.ET 2,5% 8/y; ½S d/3.ET 5% 8/y; ½S d/4.ET 2,5% 8/y; ½S d/4.ET 5% 8/y; ½S d/5.ET 2,5% 8/y; ½S d/5.ET 5% 8/y; ½S d/7.ET 2,5% 8/y; ½S d/7.ET 5% 8/y e ½S d/2 (testemunha). As variáveis avaliadas foram: perímetro do caule, produção de borracha seca, secamento do painel; foi avaliada, também, a viabilidade econômica. Os resultados mostram a superioridade econômica dos sistemas ½S d/5.ET 2,5% 8/y e ½S d/7.ET 5% 8/y, para o clone PB 260; ½S d/7.ET 2,5% 8/y para o clone PB 235; e ½S d/3.ET 2,5% 8/y e ½S d/3.ET 5% 8/y, para os clones PB 330 e PB 217, comparados com a testemunha. A menor incidência de secamento do painel foi observada no sistema ½S d/7.ET 5% 8/y, exceto para o clone PB 235.

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22

Al-Salahi, Rashad, Mohamed Al-Omar, Mohamed Marzouk e Seik Weng Ng. "3-Benzyl-8-methoxy-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one". Acta Crystallographica Section E Structure Reports Online 68, n. 6 (19 maggio 2012): o1807. http://dx.doi.org/10.1107/s1600536812021794.

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The tetrahydroquinazole fused-ring system of the title compound, C16H14N2O2S, is roughly planar (r.m.s. deviation = 0.039 Å); the phenyl ring of the benzyl substituent is aligned at 78.1 (1)° with respect to the mean plane of the fused-ring system. In the crystal, two molecules are linked by a pair of N—H...S hydrogen bonds about a center of inversion, generating a dimer.

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23

Hashimoto, S., N. Shimada, T. Hanari, Y. Kurosaki, K. Takeda, M. Anada, H. Nambu e M. Shiro. "Synthesis ofendo-6-Aryl-8-oxabicyclo-[3.2.1]oct-3-en-2-one". Synfacts 2010, n. 12 (22 novembre 2010): 1329. http://dx.doi.org/10.1055/s-0030-1258874.

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24

Sawa, Tomohiro, Mohammad Hasan Zaki, Tatsuya Okamoto, Teruo Akuta, Yoshiko Tokutomi, Shokei Kim-Mitsuyama, Hideshi Ihara et al. "Protein S-guanylation by the biological signal 8-nitroguanosine 3′,5′-cyclic monophosphate". Nature Chemical Biology 3, n. 11 (30 settembre 2007): 727–35. http://dx.doi.org/10.1038/nchembio.2007.33.

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25

Alexakis, Peter G., Bruce A. Brown e William M. Hohl. "Porous Hip Replacement in Paget??s Disease; An 8???2/3-Year Followup". Clinical Orthopaedics and Related Research 350 (maggio 1998): 138???142. http://dx.doi.org/10.1097/00003086-199805000-00019.

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26

Benyunes, Stephen A., Jeremy P. Day, Michael Green, Abdul Wahab Al-Saadoon e Tracey L. Waring. "s-trans-1, 3-Dienes as Ligands for Cationic Group 8 Metal Centers". Angewandte Chemie International Edition in English 29, n. 12 (dicembre 1990): 1416–17. http://dx.doi.org/10.1002/anie.199014161.

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27

Correa, Diego H., Victor I. Giraldo-Rivera e Martín Lagares. "On the abundance of supersymmetric strings in AdS₃ × S ³ × S ³ × S ¹ describing BPS line operators". Journal of Physics A: Mathematical and Theoretical 54, n. 50 (22 novembre 2021): 505401. http://dx.doi.org/10.1088/1751-8121/ac354d.

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Abstract We study supersymmetric open strings in type IIB AdS3 × S 3 × S 3 × S 1 with mixed R–R and NS–NS fields. We focus on strings ending along a straight line at the boundary of AdS3, which can be interpreted as line operators in a dual CFT2. We study both classical configurations and quadratic fluctuations around them. We find that strings sitting at a fixed point in S 3 × S 3 × S 1, i.e. satisfying Dirichlet boundary conditions, are 1/2 BPS. We also show that strings sitting at different points of certain submanifolds of S 3 × S 3 × S 1 can still share some fraction of the supersymmetry. This allows to define supersymmetric smeared configurations by the superposition of them, which range from 1/2 BPS to 1/8 BPS. In addition to the smeared configurations, there are as well 1/4 BPS and 1/8 BPS strings satisfying Neumann boundary conditions. All these supersymmetric strings are shown to be connected by a network of interpolating BPS boundary conditions. Our study reveals the existence of a rich moduli of supersymmetric open string configurations, for which the appearance of massless fermionic fields in the spectrum of quadratic fluctuations is crucial.

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28

Pollini, Gian, Carmela De Risi, Flavio Lumento, Paolo Marchetti e Vinicio Zanirato. "Enantioselective Approach to Tropane Skeleton: Synthesis of (1S,5S,6R)-6-Hydroxy-8-methyl-8-azabicyclo[3.2.1]octan-3-one". Synlett 2005, n. 01 (29 novembre 2004): 164–66. http://dx.doi.org/10.1055/s-2004-836037.

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29

Silva, Juliano Quarteroli, Mario Ivo Tavares de Souza, Paulo de Souza Gonçalves, Adriano Tosoni da Eira Aguiar, Lígia Regina Lima Gouvêa e Raquel Nakazato Pinotti. "Viabilidade econômica de diferentes sistemas de sangria em clones de seringueira". Pesquisa Agropecuária Brasileira 42, n. 3 (marzo 2007): 349–56. http://dx.doi.org/10.1590/s0100-204x2007000300007.

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Abstract (sommario):

O objetivo deste trabalho foi avaliar o desempenho produtivo e os aspectos econômicos de três clones de seringueira [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.], sob nove sistemas de sangria. O experimento foi instalado sob delineamento de blocos ao acaso com parcelas subdivididas no tempo. Os tratamentos principais foram os clones PR 255, RRIM 600 e GT 1, submetidos aos seguintes sistemas de sangria: ½S d/3 6d/7.11m/y.ET 2,5% Pa La 8/y; ½S d/3 6d/7.11m/y.ET 5,0% Pa La 8/y; ½S d/4 6d/7.11m/y.ET 2,5% Pa La 8/y; ½S d/4 6d/7.11m/y.ET 5,0% Pa La 8/y; ½S d/5 6d/7.11m/y.ET 2,5% Pa La 8/y; ½S d/5 6d/7.11m/y.ET 5,0% Pa La 8/y; ½S d/7 6d/7.11m/y.ET 2,5% Pa La 8/y; ½S d/7 6d/7.11m/y.ET 5,0% Pa La 8/y e ½S d/2 6d/7.11m/y (testemunha). As variáveis estudadas foram: perímetro do caule, produtividade de borracha seca e secamento do painel. Também foi avaliada a viabilidade econômica dos sistemas de sangria. Observaram-se maior produtividade e rentabilidade dos sistemas ½S d/3.ET 2,5% 8/y para os clones PR 255 e RRIM 600 e ½S d/7.ET 2,5% 8/y para o clone GT 1, comparados com a testemunha. A maior e a menor porcentagem de secamento do painel foram observadas nos sistemas ½S d/3 ET 5,0% 8/y e ½S d/7.ET 5,0% 8/y, respectivamente.

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30

Akkari, F. Chaffar, D. Abdelkader, B. Gallas e M. Kanzari. "Ellipsometric characterization and optical anisotropy of nanostructured CuIn 3 S 5 and CuIn 5 S 8 thin films". Materials Science in Semiconductor Processing 71 (novembre 2017): 156–60. http://dx.doi.org/10.1016/j.mssp.2017.07.023.

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31

Kunkel, Frank, Hella Folkerts, Sigrid Wocadlo, Hak-Chul Kang, Werner Massa e Kurt Dehnicke. "Ionische Phosphaniminato-Komplexe von Schwefel(IV) und Selen(IV ). Die Kristallstrukturen von [S(NPMe3)3]Cl · CH2Cl2, [S(N PPh3)3]S4N5 und [Se(NPMe3)3]Cl · C7H8 / Ionic Phosphorane Iminato Complexes of Sulfur(IV) and Selenium(IV). Crystal Structures of [S(NPMe3)3]Cl ·CH2Cl2, [S(NPPh3)3]S4N5 and [Se(NPMe3)3]Cl · C7H8". Zeitschrift für Naturforschung B 50, n. 10 (1 ottobre 1995): 1455–63. http://dx.doi.org/10.1515/znb-1995-1005.

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[S(NPMe3)3]Cl · CH2C12 and [S(NPPh3)3]S4N5 were prepared by the reaction of Me3SiNPMe3 or Me3SiNPPh3 with sulfur dichloride and S3N2Cl2, respectively, in CH2Cl2 solutions as colourless, moisture sensitive crystals. The corresponding selenium compound was prepared from SeCl4 and Me3SiNPMe3 in acetonitrile solution; it crystallizes from toluene solutions with one mole of toluene per formula unit. All complexes have been characterized by IR spectroscopy and by crystal structure determinations.[S(NPMe3)3]Cl-CH2Cl2: Space group Pna21, Z = 8 , 3930 observed unique reflections, R = 0.033. Lattice dimensions at -120 °C: a = 1200.9(1), b = 1020.2(1), c = 1790.5(1) pm.[S(NPPh3)3]S4N5: Space group P63, Z = 2, 2586 observed unique reflections, R = 0.054. Lattice dimensions at -100 °C: a = b = 1334.7(2), c = 1652.6(2) pm.[Se(NPMe3)3]Cl · C7H8: Space group C2/c, Z = 8 , 1475 observed unique reflections, R = 0.059. Lattice dimensions at -40 °C: a = 1853.6(8), b = 1159.2(4), c = 2053.2(4) pm. β = 101.92(3)°.All compounds contain cations [E(NPR3)3]+ (E = S, Se) with pyramidal structures. Bond lengths and bond angles are in average: S-N 162.5 pm, S-N-P 120.5° (R = Me), S-N 161.8 pm, S-N-P 119.2° (R = Ph), Se-N 177.8 pm, Se-N-P 120.3°.

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Ozdinc, Halil, Nihal Onul e Funda Ozkok. "Novel N,S-Substituted naphthoquinone analogues from aminonaphthoquinones". European Chemistry and Biotechnology Journal, n. 1 (2 gennaio 2024): 1–10. http://dx.doi.org/10.62063/ecb-13.

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Abstract (sommario):

In this study, novel N,S-substituted naphthaquinone analogues (2, 4, 6, and 8) were synthesized from the reactions of previously known aminonaphthaquinone derivatives (1, 3, 5, and 7) with allyl mercaptan. 2-(allylthio)-3-(4-phenylpiperazin-1-yl)naphthalene-1,4-dione (2), 2-(allylthio)-3-(4-(2-fluorophenyl)piperazin-1-yl)naphthalene-1,4-dione (4), 2-(allylthio) -3-(4-benzylpiperidin-1-yl)naphthalene-1,4-dione (6) and 2-(4-chlorophenylamino)-3-(allylthio)naphthalene-1,4-dione (8) were obtained from the reactions of 2-chloro-3-(4-phenylpiperazin-1-yl)naphthalene-1,4-dione (1), 2-chloro-3-(4-(2-fluorophenyl)piperazin-1-yl)naphthalene-1,4-dione (3), 2-(4-benzylpiperidin-1-yl)-3-chloronaphthalene-1,4-dione (5), and 2-(4-chlorophenylamino) -3-chloronaphthalene-1,4-dione (7) with allyl mercaptan according to the general synthesis procedure. Synthesized new naphthaquinone analogues (2, 4, 6, and 8) were purified by column chromatography. The chemical structures of these novel N,S-substituted naphthaquinone analogues were characterized by spectroscopic methods (FT-IR, NMR, and MS).

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33

Abe, Noritaka, Hiroyuki Fujii, Noritaka Umeda e Akikazu Kakehi. "Synthesis and Reactions of 3- and 8-Ethynyl-1-azaazulenes". HETEROCYCLES 58, n. 1 (2002): 283. http://dx.doi.org/10.3987/com-02-s(m)18.

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Ishibashi, Hiroyuki, Tsuyoshi Taniguchi e Hisaaki Zaimoku. "8-Endo-Selective Aryl Radical Cyclization Leading to 3-Benzazocines". HETEROCYCLES 77, n. 1 (2009): 575. http://dx.doi.org/10.3987/com-08-s(f)21.

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Puranik, V. G., N. N. Dhaneshwar, S. S. Tavale e J. B. Bhonsle. "Crystal and molecular structure of 12(S)-acetoxy-4(S),8(R)-dimethyl-3-oxo-1(R)-5(S)-9(S)-2-oxatricyclo[4.4.7.01,9.3.4.8.01,5]tridecane". Journal of Crystallographic and Spectroscopic Research 21, n. 5 (ottobre 1991): 547–51. http://dx.doi.org/10.1007/bf01161075.

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Kim, Jae Nyoung, Jeong Mi Kim e Ka Young Lee. "Synthesis of 3-Alkylidenebicyclo[3.2.1]octan-8-oneSkeleton from the Baylis-Hillman Acetates". Synlett, n. 6 (2003): 0821–24. http://dx.doi.org/10.1055/s-2003-38750.

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37

Wubbels, Theo, Petr Novotný e Roman Švaříček. "O smyslu pedagogického výzkumu: rozhovor s Theem Wubbelsem". Studia paedagogica 22, n. 3 (17 ottobre 2017): 149. http://dx.doi.org/10.5817/sp2017-3-8.

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38

Pal, Sonu, Saibal K. Pal e Anupama Panigrahi. "Construction of S-boxes with LBN and DBN ≥ 4". Journal of Discrete Mathematical Sciences and Cryptography 26, n. 6 (2023): 1665–82. http://dx.doi.org/10.47974/jdmsc-1572.

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Abstract (sommario):

There is always a need for good and safe S-boxes in block ciphers for secure communication. To improve the security of lightweight block ciphers, S-boxes with high linear and diiferential branch numbers (LBN and DBN) are utilized. Many of these S-boxes have been built in recent years. Sarkar et. al. built S-boxes with LBN and DBN both equal to 3. Kim Hangi et. al. also created 8-bit S-boxes using smaller S-boxes with at least 3 LBN and DBN. In this direction, we narrow the search space of 8 × 8 S-boxes with LBN = DBN = 4. We used the Feistel and Lai-Massey structures to build these S-boxes. We present a detailed explanation of such 8 × 8 S-boxes.

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39

Baughman, Russell G., Molly C. Delanty e Michael F. Ortwerth. "Crystal structure of 1,6-dithiacyclodeca-cis-3,cis-8-diene (DTCDD)". Acta Crystallographica Section E Structure Reports Online 70, n. 11 (31 ottobre 2014): o1218. http://dx.doi.org/10.1107/s1600536814023319.

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Abstract (sommario):

The title compound, C8H12S2(trivial name DTCDD), was obtained as a side product of the reaction betweencis-1,4-dichlorobut-2-ene and sodium sulfide. The asymmetric unit consists of one-quarter of the molecule (S site symmetry 2) and the complete molecule has 2/m(C2h) point symmetry with the C=C bond in anEconformation. The geometry of the title compound is compared to those of a chloro derivative and a mercury complex.

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40

Papadopoulos, Georgios A., Dominiek G. D. Maes, Stephanie Van Weyenberg, Theo A. T. G. van Kempen, Johan Buyse e Geert P. J. Janssens. "Peripartal feeding strategy with different n-6:n-3 ratios in sows: effects on sows' performance, inflammatory and periparturient metabolic parameters". British Journal of Nutrition 101, n. 3 (10 luglio 2008): 348–57. http://dx.doi.org/10.1017/s0007114508026160.

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Abstract (sommario):

The present study aimed to investigate the effects of two lactation sow feeds, differing in n-6:n-3 ratio, given to sows before parturition on body condition and feed intake, periparturient metabolism (leptin, insulin, triiodothyronine (T3) and thyroxine (T4)), inflammatory parameters (TNFα, IL-6, serum amyloid A (SAA)) and on piglet performance (birth weight, survivability). The feed contained either a low (supplemented with fish oil; f groups) or high (supplemented with sunflower-seed oil; s groups) n-6:n-3 ratio and was administered from 8 d (f8, s8) or 3 d (f3, s3) before parturition until weaning. The level of inclusion of the oil sources was 2 %. Seventy-two sows were randomly allocated 8 d before expected farrowing into four groups: f3, f8, s3, s8. Type of feed had a significant influence on the sows' feed intake during the first 2 d of lactation (s < f), leptin on days 4, 3 and 2 before parturition (f < s), insulin on day 1 after parturition (f < s), T4 on the day before parturition (s < f) and rectal temperature on the day after parturition (f < s). Onset of administration of the feed (3 v. 8 d) had significant effects on leptin on day 2 before parturition (8 < 3), insulin on day 4 before parturition (3 < 8), T3 on day 4 before parturition and on the day after parturition (3 < 8), SAA on day 3 after parturition (8 < 3) and piglet weight during the first days postpartum (3 < 8). In conclusion, under the present conditions, a lactation feed low in n-6:n-3 ratio administered from 8 d before farrowing ensures improved feed intake during the first days postpartum and was associated with a better metabolic change and inflammatory profile in sows in the periparturient period.

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41

Rasol, Nurulfazlina Edayah, Fasihuddin Badruddin Ahmad, Chun-Wai Mai, Nur Vicky Bihud, Fauziah Abdullah, Khalijah Awang e Nor Hadiani Ismail. "Styryl Lactones from Roots and Barks Goniothalamus lanceolatus". Natural Product Communications 13, n. 12 (dicembre 2018): 1934578X1801301. http://dx.doi.org/10.1177/1934578x1801301203.

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Abstract (sommario):

A new styryl lactone, 5 R,6 R-5-hydroxy-6-styryltetrahydropyrane-2-one 2 was isolated from the roots of an endemic Goniothalamus lanceolatus Miq. of Sarawak, Malaysia. Furthermore, seven previously undescribed diastereomers, 5 R,6 R-5-hydroxygoniothalamin 3, 5 R,6 R-5-acetylgoniothalamin 4, 6 S,7 S,8 S-goniodiol-7-monoacetate 5, 6 S,7 S,8 S-goniodiol-8-monoacetate 6, goniofupyrone B 7, deoxygoniopypyrone B 8 and 1 S,5 S,7 R,8 S,3- endo,7- endo-(+)-8- epi-9-deoxygoniopypyrone acetate 9, along with six known styryl lactones (1, 10–15) were also isolated and characterized. 6 S-goniothalamin 1 is reported for the first time from a Goniothalamus species. 1, 11 and 12 showed cytotoxic activity against human colon and lung cancer cell lines with IC50 values ranging from 2.38–7.59 μM.

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42

Huang, Ke-Jing, Chun-Xuan Xu, Wan-Zhen Xie, Hua-Shan Zhang e Hong Wang. "Ultra-trace determination of S-nitrosothiols in blood samples by spectrofluorimetry with 8-(3′,4′-diaminophenyl)-difluoroboradiaza-s-indacene". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 69, n. 2 (febbraio 2008): 437–42. http://dx.doi.org/10.1016/j.saa.2007.04.020.

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43

Koutrouvelis, P., D. Fried, N. Lailas, A. Monjazeb, J. Sehn, G. Sideris, F. Hendricks e S. Katz. "104 poster: Targeted 3-D Brachytherapy for Gleason S Score 8-10 Prostate Cancer". Radiotherapy and Oncology 91 (maggio 2009): S39—S40. http://dx.doi.org/10.1016/s0167-8140(15)34361-9.

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44

Wu, Kui, Zhihua Yang e Shilie Pan. "Na6Si3S8O: the first example of a sulfide silicate exhibiting unusual tri-polymerized [Si3S8O]6−units without S–O bonds". Dalton Trans. 46, n. 39 (2017): 13356–59. http://dx.doi.org/10.1039/c7dt03125d.

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Abstract (sommario):

A new sulfide silicate – Na₆Si₃S₈O – featuring novel tri-polymerized [Si₃S₈O]⁶⁻units without common S–O bonds has been verified as a promising birefringent material.

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45

Kiran, Ismail. "Microbial Hydroxylation of S-(-)-Perillyl Alcohol by Fusarium heterosporium". Natural Product Communications 6, n. 12 (dicembre 2011): 1934578X1100601. http://dx.doi.org/10.1177/1934578x1100601203.

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Abstract (sommario):

S-(-)-Perillyl alcohol ( p-mentha-1, 8-diene-7-ol) (1) (500 mg) was converted by Fusarium heterosporium ATCC 15625 over 10 days at 25°C to a new metabolite, 1,2-dihydroxyperillyl alcohol ( p-mentha-8-en-1,2,7-triol) (3) in a yield of 13% (70 mg). The structure of 3 was established by IR and NMR spectroscopic, specific rotation, and mass spectral studies.

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46

Sahai, M., e S. F. Ansari. "Group of units of finite group algebras of groups of order 24". Ukrains’kyi Matematychnyi Zhurnal 75, n. 2 (2 marzo 2023): 215–29. http://dx.doi.org/10.37863/umzh.v75i2.6680.

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Abstract (sommario):

UDC 512.5 Let F be a finite field of characteristic p . The structures of the unit groups of group algebras over F of the three groups D 24 , S 4 and S L ( 2 , ℤ 3 ) of order 24 are completely described in numerous works. We present the unit groups of the group algebras over F for the remaining groups of order 24 , namely, C 24 , C 12 × C 2 , C 2 3 × C 3 , C 3 ⋊ C 8 , C 3 ⋊ Q 8 , D 6 × C 4 , C 6 ⋊ C 4 , C 3 ⋊ D 8 , C 3 × D 8 , C 3 × Q 8 , A 4 × C 2 , and D 12 × C 2 .

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47

CHANDE, M. S., e B. M. KARNIK. "ChemInform Abstract: Synthesis of New 3-Substituted s-Triazolo(3,4-b)-8-methylpyrazolo(3′,4′ -e)(5H)-(1,3,4)thiadiazines." ChemInform 22, n. 49 (22 agosto 2010): no. http://dx.doi.org/10.1002/chin.199149205.

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48

Houston, D. Michael, E. K. Dolence, Bradley T. Keller, Usha Patel-Thombre e Ronald T. Borchardt. "Potential inhibitors of S-adenosylmethionine-dependent methyltransferases. 8. Molecular dissections of carbocyclic 3-deazaadenosine as inhibitors of S-adenosylhomocysteine hydrolase". Journal of Medicinal Chemistry 28, n. 4 (aprile 1985): 467–71. http://dx.doi.org/10.1021/jm00382a014.

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49

Santagada, Vincenzo, Beatrice Severino, Francesco Frecentese, Elisa Perissutti, Sara Terracciano, Ferdinando Fiorino, Donatella Cirillo, Severo Salvadori, Gianfranco Balboni e Giuseppe Caliendo. "Synthesis ofN α-FmocN,N′-bis-Boc-5-, 6- and 8-guanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid (5-GTIC, 6-GTIC and 8-GTIC)". Synthesis, n. 18 (2004): 3011–16. http://dx.doi.org/10.1055/s-2004-834875.

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50

Matsuo, Jun-ichi, Tatsuo Onnagawa, Mizuki Yamazaki e Tomoyuki Yoshimura. "Synthesis of 8-Oxabicyclo[3.2.1]octanes by TiCl4-Mediated Reactions of 3-Alkoxycyclobutanones and Allenylsilanes". Synlett 29, n. 20 (29 ottobre 2018): 2717–21. http://dx.doi.org/10.1055/s-0037-1611276.

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Abstract (sommario):

1-Substituted allenylsilanes reacted with 3-alkoxycyclobutanones in the presence of TiCl4 to afford 8-oxabicyclo[3.2.1]octan-3-ones stereoselectively. Nucleophilic attack of allenylsilanes to a 1,4-zwitterionic intermediate formed from 3-alkoxycyclobutanones and TiCl4 followed by 1,2-silyl migration, five-membered cyclization with an alkoxy group, and seven-membered cyclization of titanium enolate was proposed. Deuteration and one-pot Peterson olefination suggested that alkyl titanium species were formed after cyclization to 8-oxabicyclo[3.2.1]octane skeletons.

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