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  • 1980-1984  (13)
  • 1970-1974  (13)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Macaroni was produced from commercial durum semolina blended with 10, 20, and 30% defatted corn germ meal. The effect of germ supplementation on chemical composition, physical properties of dough, cooking characteristics, mechanical properties, and panel acceptability of macaroni were studied. Addition of corn germ meal resulted in longer mixing time of the dough, higher farinograph water absorption, higher protein content of the products and improvement of amino acids pattern. Optimum cooking time and percent increase in weight of cooked macaroni decreased with increasing levels of wheat substitution. Enrichment with germ flour had no effect on flavor and texture of conventional macaroni evaluated by taste panels; it greatly affected physical measurements of cooked product texture causing an increase of firmness.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 17 (1983), S. 183-187 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We compute the one loop quadratic divergences to the effective potential of the matter scalars inN=1 supergravity. We discuss in some special instances (the Das-Freedman and the Deser-Zumino Lagrangians) the problem of supersymmetry gauge invariance. We comment on the relevance of the calculation to model building.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 11 (1981), S. 175-178 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the possibility that theU(1) B global symmetry associated with baryon number is spontaneously broken. We present realistic examples implemented in the context of a suitably extended standardSU(2) L×U(1)×SU(3)c model and of a composite model of quarks and leptons. The globalU(1) B symmetry in both cases is spontaneously broken at a relatively low mass scale without any conflict with observations. The dominant baryon number nonconserving process in these models obeys the ΔB=2 selection rule.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 13 (1982), S. 267-271 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe a supersymmetric model of strong and electroweak interactions based on the gauge groupSU(3)×SU(2)×U(1)×Ũ(1). We concentrate on the pattern of the spontaneous symmetry breaking by the tree level scalar potential. It is possible to break theŨ(1) factor at superlarge energies relative to the simultaneous breaking scale ofSU(2)×U(1) and supersymmetry. The model hasŨ(1) anomalies. Attempts to make an anomaly-free model based on the groupE 6 are described. We also comment on possible modifications of theŨ(1) anomaly problem due to gravitational effects.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 248-256 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Komplexe des Zinn (IV) mit dreizähigen Liganden. Mössbauer- und IR-Spektren sowie Untersuchungen von LösungenDie Struktur von SnIV-Komplexen mit dreizähnigen “planaren” Liganden, Sn(trid)2 und HNEt3Cl2Sntrid, wurde in fester Phase und in Lösung untersucht mit Hilfe von IR- und MÖSSBAUER-Spektroskopie (für den festen Zustand) sowie osmometrisch, mit Leitfähigkeitsmessungen, UV-VIS- und NMR-Spektroskopie. Danach wird das Vorliegen von monomerem Sn(trid)2 und ionischem [HKEt3]+[Cl3Sntrid]- angenommen. Bei beiden Arten von Verbindungen liegt vermutlich oktaedrische Konfiguration vor.
    Notes: The configuration in the solid state and in solution phase of complexes of SuIV wit,li tridentate “planar” ligands, Sn(trid)2 and HNEt3Cl3 Sntrid, have been investigated by infrared and MÖSSBAUER spectroscopy, as well as by osmometry, conductivity, and electronic and PMR spectroscopy. The presence of monomeric Sn(trid)2 and ionic [HNEt+3] [Cl3Sn trid-] species has been inferred. Octahedral type configurations are advanced for both classes of compounds.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complexes R2SnL (R = CH3, C6H5; L2- = tridentate ONO and SNO ligands) are synthesized, and their configuration is investigated by vibrational, PMR and electronic spectroscopy.The ligands H2L are: 2-pentanone-4-(2-benzothiazolinyl), (prepared for the first time); 3-(o-hydroxyphenylamino)crotonophenone; 2-(o-hydroxyphenyl)benzothiazoline; 2,2′methylidynenitrilo diphenol. Their configuration at the solid state is discussed. The ligands seem to coordinate the tin (IV) atoms as planar tridentates, in the dianion Schiff base form.The R2SnIV moieties very probably assume a bent configuration in R2SnL. Hypotheses on the structure of R2SnL are then advanced: the possible occurrence of a quasi trigonal bipyramidal geometry, where the two carbon (R) atoms and the azomethine nitrogen atom are allocated in the trigonal plane and the O, O or S, O ligand atoms lie in axial position, is discussed.
    Notes: Komplexverbindungen vom Typ R2SnL (R = CH3, C6H5; L ist ein dreizähniger ONO- oder SNO-Ligand) werden dargestellt und ihre IR-, KMR- und elektronischen Spektren untersucht, um die Strukturen zu klären.Als Liganden (LH2) werden benutzt: 4-(2-Benzothiazolinyl)-pentan-2-on, (hier zum ersten Mal dargestellt); 3-(o-Hydroxyphenylamino)crotonophenon; 2-(o-Hydroxyphenyl)-benzothiazolin; und N-o-Hydroxybenzyliden-o′-hydroxyanilin.Im festem Zustand umgeben die organischen Liganden L2- das Zinn(IV)-Atom als ebene dreizähnige Liganden. Die R2SnIV-Reste sind wahrscheinlich nicht linear. Eine mögliche Anordnung der Liganden ist eine trigonale Bipyramide, in der die zwei R-Reste und das Stickstoffatom in der trigonalen Ebene und die zwei Sauerstoffatome bzw. das Sauerstoff- und das Schwefelatom in den zwei anderen Positionen auf beiden Seiten der Ebene liegen.
    Additional Material: 1 Ill.
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of (C6H5)2SnSAT, (SAT = Tridentatte Dianion from 2-(o-Hydroxyphenyl)benzothiazoline)(C6H5)2SnSAT, C25H19NOSSn (SAT = tridendate dianion of SCHIFT base form, derived from 2-(o-hydroxyphenyl)benzothiazoline), crystallizes in the space group P21/n(C2h5) with a = 9.65(1), b = 16.08(1), c = 13.83(1) Å, β = 94.95(10)° Z = 4. The crystal and molecular structure has been solved using 3150 symmetrical independent reflections and applying the heavy atom method; the position of all atoms, except the H atoms has been determined. As interatomic distances have been found: Sn—S: 2.496(1) Å, Sn—O: 2.093(2) Å, Sn—N: 2.217(3) Å, Sn—C 1 (phenyl group I): 2.120(3) Å, Sn—C 7 (phenyl group II): 2.126(3) Å, O—C: 1.324(4) Å, C 19-N (Schief base bridging group): 1.287(5) Å, C 19-C: 1.448(5) Å, N—C: 1.419(5) Å, mean C—C distances in the two phenyl groups at Sn: 1.391(6) Å. The coordination polyhedron around Sn has essentially trigonal bipyramidal structure, which however is heavily distorted; N and the two Sn-phenylgroups occupy the equatorial positions.
    Notes: (C6H5)2SnSAT, C25H19NOSSn (SAT = dreizähniges Dianion mit Schiffscher Base-Struktur, abgeleitet von 2-(o-Hydroxyphenyl)benzothiazolin), kristallisiert in der Raumgruppe P21/n (C2h5) mit a = 9,65(1), b = 16,08(1), c = 13,83(1) Å, β = 94,95(10)° und Z = 4. Die Kristall- und Molekülstruktur wurde an Hand von 3150 symmetrisch unabhängigen Reflexen nach der Schweratommethode bestimmt und die Atomlagen bis auf die der Wasserstoffatome ermittelt. Für die interatomaren Abstände im Molekül wurden gefunden: Sn—S: 2,496(1) Å, Sn—O: 2.093(2) Å, Sn—N: 2,217(3) Å, Sn—C 1 (Phenylrest I): 2,120(3) Å, Sn—C 7 (Phenylrest II): 2,126(3) Å, O—C: 1,324(4) Å, C 19-N (Brückenglied der Schiffschen Base): 1,287(5) Å, C 19-C: 1,448(5) Å, N—C: 1,419(5) Å, Mittelwert der C—C-Abstände der beiden Phenylreste an Sn: 1,391(6) Å. Das Koordinationspolyeder um das Sn-Atom hat die Grundstruktur einer trigonalen Bipyramide, die jedoch erheblich verzerrt ist; N und die beiden Phenylgruppen am Sn liegen äquatorial.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 410 (1974), S. 88-96 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of (CH3)2SnSAB. (SAB = Dianion of 2-Hydroxy-N-(2-hydroxybenzylidene)-aniline)(CH3)2SnSAB, C15H15NO2Sn (SAB = tridentate dianion of 2-hydroxy-N-(2-hydroxybenzylidene)-aniline in SCHIFF base form) crystallizes in the space group Pben (D2h14) with a = 19.271(5), b = 10.508(2), c = 13.379(1) Å and Z = 8. The structure has been solved using 1307 symmetrical independent reflections and applying the heavy atom method; the position of all atoms, except the H atoms, has been determined. As interatomic distances have been found: Sn—C(CH)3: 2.117(14), Sn—O:2.112(9), Sn—N:2.229(11) N—C 10 (phenyl group II): 1.462(16), C9-N (SCHIFF base bridging group): 1.257(18), C 9—C8 (phenyl group I): 1.441(18) Å; mean C—C distances in the phenyl groups: 1.403(18) Å. Two molecules at a time have a centre of symmetry and weakly coordinate through two loose Sn—O bridges (intermolecular Sn—O distance: 2.881(8) Å). The individual molecules essentially form a distorted trigonal bipyramid with N and both methyl-C atoms in the equatorial plane;  CSnC = 138.52(50)°;  OSnO = 158.58(35)°.
    Notes: (CH3)2SnSAB, C15H15NO2Sn (SAB = dreizähniges Dianion von 2-Hydroxy-N-(2-hydroxybenziliden)-anilin mit SCHIFFscher Base-Struktur) kristallisiert in der Raumgruppe Pbcn (D2h14) mit a = 19,271(5), b = 10,508(2), c = 13,379(1) Å und Z = 8. Die Struktur wurde anhand von 1307 symmetrisch unabhängigen Reflexen nach der Schweratommethode bestimmt und die Atomlagen bis auf die der Wasserstoffatome ermittelt. Für die interatomaren Abstände in der Molekel wurden gefunden: Sn—C(CH)3: 2,117(14), Sn—O: 2,112(9), Sn—N: 2,229(11), N—C 10 (Phenylring II): 1,462(16), C 9-N (Brückenglied der SCHIFFschen Base): 1,257(18), C9-C8 (Phenyling I): 1,441(18) Å; Mittelwerte der C—C-Abstände in den Phenylringen: 1,403(18) Å. Jeweils zwei Molekeln, die durch ein Symmetriezentrum miteinander verknüpft sind, stehen über zwei lockeren Sn—O-Brücken (intermolekularer Sn—O-Abstand: 2,881(8) Å) in schwacher koordinativer Wechselbeziehung. Die Einzelmolekeln haben die Grundstruktur einer verzerrten trigonalen Bipyramide mit N und den beiden Methyl-C-Atomen in der Äquatorialebene;  CSnC = 138,52(50)°;  OSnO = 158,58(35)°.
    Additional Material: 2 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 387 (1972), S. 126-133 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung neuer Komplexverbindungen: R2PbL (R = CH3, C2H5, C6H5; L-2 sind zweiwertige Anionen, in der „planaren“ SCHIFFSCHEN Basen-Konfiguration, der vierzähnigen ONNO-Liganden Disalicylal-äthylendiamin und Glyoxal-bis-[2-hydrocyanil).In festem Zustand wurden die Strukturen durch IR-Spektren und in Lösung durch 1HMR-und Elektronenspektren untersucht, und es wird eine oktaedrische Struktur mit einem linearen R2Pb-Rest und den ONNO-Atomen mit einer vierzähligen planaren Anordnung um das Blei-(IV)-Atom vorgeschlagen.
    Notes: New complexes R2PbL, where L2- are the dianions in the “planar” SCHIFF base form, of the tetradentate ONNO ligands α, α′ (ethylenedinitrilo)dicresol and 2,2′ bis-benzoxazoline, were synthesized. Their configuration was investigated at the solid state by infrared spectroscopy, and in solution phase mainly by electronic and PMR spectroscopy. An octahedral type structure with linear CPbC moieties, and the ONNO ligand atoms chelating PbIV in a square plane, was advanced.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 471 (1980), S. 194-202 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organolead and Organotin Derivatives of Mercaptoaminoacids and CysteaminReaction of tri- and diorganolead and -tin hydroxides and oxides with mercaptoaminoacids and cysteamine in CHCl3 or CHCl3/H2O allows the gentle preparation of the above compounds. The bonding between M and ligand indicated in the formula of the compounds, mainly the preferred bonding of M to S follows from vibrational spectra; proposals regarding the structure are made using spectral data. Ph3SnOH and penicillamine react to give monomeric Ph3SnSCMe2CH(NH2)COOSnPh3.
    Notes: Die Umsetzung von Tri- und Diorganoblei-und -zinnhydroxiden bzw. -oxiden mit Mercaptoaminosäuren sowie mit Cysteamin in CHCl3 bzw. CHCl3/H2O ermöglicht die schonende Darstellung von Ph3MSCH2CH(NH2)COOH, Ph3PbSCMe2CH(NH2)COOH, Ph3MSCH2CH2NH2, Me3SnSCR2′CH(NH2)COOH, Ph2M[SCR2′CH(NH2)COOH]2, Me2Sn[SCR2′CH(NH2)COOH]2, R2SnSCR2′CH(NH2)COO,Ph2MSCR2′CH(NH2)COO,Ph2M(SCH2CH2NH2)2 und Me2Sn(SCH2CH2NH2)2 (M=Pb, Sn; R′=H, Me; R=Me, Ph; Me=CH3; Ph=C6H5).Die in den Formeln der Verbindungen angezeigte Art der Bindung zwischen M und Ligand, insbesondere die bevorzugte Bindung von M an S, folgt aus den Schwingungsspektren, mit deren Hilfe auch Strukturvorschläge diskutiert werden. Ph3SnOH reagiert mit Penicillamin zu monomerem Ph3SnSCMe2CH(NH2)COOSnPh3.
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