cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Through a Lattice Darkly -- Shedding Light on Electron-Phonon Coupling in the High T$_c$ Cuprates
Creators: name: Garcia, D. R.
name: Lanzara, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: With its central role in conventional BCS superconductivity, electron-phonon coupling has appeared to play a more subtle role in the phase diagram of the high temperature superconducting cuprates. The added complexity of the cuprates with potentially numerous competing phases including charge, spin, orbital, and lattice ordering, makes teasing out any unique phenomena challenging. In this review, we present our work using angle resolved photoemission spectroscopy (ARPES) to explore the role of the lattice and its effect on the valence band electronic structure in the cuprates. We provide an introduction to the ARPES technique and its unique ability to the probe the effect of bosonic renormalization (or "kink") on the near-E$_F$ band structure. Our survey begins with the establishment of the ubiquitous nodal cuprate kink leading to the way isotope substitution has shed a critical new perspective on the role and strength of electron-phonon coupling. We continue with recently published work on the connection between the phonon dispersion as seen with inelastic x-ray scattering (IXS) and the location of the kink as observed by ARPES near the nodal point. Finally, we present very recent and ongoing ARPES work examining how induced strain through chemical pressure provides a potentially promising avenue for understanding the broader role of the lattice to the superconducting phase and larger cuprate phase diagram.
description: 17 pages, 20 figures, Review Article
Vietnam War Special Operation Forces and Warfare Training on U.S. Military Installations Historic Context Subtheme - Brochure (Legacy 16-518)
Creators: name: Aaron, Jayne
Publisher: name: DoD Legacy Resource Management Program
Year: 2020
Subjects: subject: United States
valueUri: https://core.tdar.org/browse/geographic-keyword/10460/united-states
subject: Vietnam War
valueUri: https://core.tdar.org/browse/temporal-keyword/6375/vietnam-war
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Schools
valueUri: https://core.tdar.org/browse/other-keyword/63759/schools
subject: Architecture Typology
valueUri: https://core.tdar.org/browse/other-keyword/70383/architecture-typology
subject: Historic Properties
valueUri: https://core.tdar.org/browse/other-keyword/31316/historic-properties
subject: Vietnam War
valueUri: https://core.tdar.org/browse/other-keyword/138711/vietnam-war
subject: Military History
valueUri: https://core.tdar.org/browse/other-keyword/7192/military-history
subject: Storage
valueUri: https://core.tdar.org/browse/other-keyword/133276/storage
subject: Academic Buildings
valueUri: https://core.tdar.org/browse/other-keyword/166556/academic-buildings
subject: Special Operation Forces
valueUri: https://core.tdar.org/browse/other-keyword/166554/special-operation-forces
subject: Department of Defense
valueUri: https://core.tdar.org/browse/other-keyword/123614/department-of-defense
subject: Outdoor Training Areas
valueUri: https://core.tdar.org/browse/other-keyword/166557/outdoor-training-areas
subject: Support Facilities
valueUri: https://core.tdar.org/browse/other-keyword/166558/support-facilities
subject: National Historic Preservation Act
valueUri: https://core.tdar.org/browse/other-keyword/46790/national-historic-preservation-act
subject: Training
valueUri: https://core.tdar.org/browse/other-keyword/30920/training
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research

description: This brochure summarizes context and typology for Vietnam War (1962–1975) special operation forces and warfare-related resources on Department of Defense (DoD) installations in the United States.
Pigment-dispersing hormone-immunoreactive neurons in the nervous system of wild-type Drosophila melanogaster and of several mutants with altered circadian rhythmicity
Creators: name: Helfrich-Förster, Charlotte
name: Homberg, Uwe
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 590 Tiere (Zoologie)

description: Antisera against the crustacean pigment-dispersing hormone (8-PDH) were used in immunocytochemical preparations to investigate the anatomy of PDH-immunoreactive neurons in the nervous system of wild-type Drosophila melanogaster and in that of several brain mutants of this species, some of which express altered circadian rhythmicity. In the wild-type and in all rhythmic mutants (small optic lobes, sine oculis, small optic 1obes;sine oculis), eight cell bodies at the anterior base of the medulla (PDFMe neurons) exhibit intense PDH-like immunoreactivity. Four of the eight somata are large and four are smaller. The four large PDFMe neurons have wide tangential arborizations in the medulla and send axons via the posterior optic tract to the contralateral medulla. Fibers from the four small PDFMe neurons ramify in the median protocerebrum dorsal to the calyces of the mushroom bodies. Their terminals are adjacent to other PDH-immunoreactive somata (PDFCa neurons) which send axons via the median bundle into the tritocerebrum. The results suggest a possible involvement of the PDFMe neurons in the circadian pacemaking system of Drosophila. The location and size of the PDFMe neurons are identical with those of neurons containing the period protein which is essential for circadian rhythmicity. Changes in the arborizations of the PDFMe neurons in small optic 1obes;sine oculis mutants are suited to explain the splitting in the locomotor rhythm of these flies. In the arrhythmic mutant, disconnected, the PDFMe neurons are absent. The arrhythmic mutant per0, however, shows normal PDH immunoreactivity and therefore, does not prevent the expression of PDH-like peptides in these neurons.
Common name- Deenanath grass (India), Kaysuwa (Nigeria), Barn (English) Scientific name- Pennisetum pedicellatumTrin. Family- Poaceae       			(a)			(b)			(c) Picture: (a) Plant of deenanath grass (b) and (c) Inflorescence of Deenanath grass
Creators: name: Deenanath grass: A most suitable grass for pasture
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description: Common name- Deenanath grass (India), Kaysuwa (Nigeria), Barn (English)
Scientific name- Pennisetum pedicellatumTrin.
Family- Poaceae
 
 
                                    (a)                               (b)                               (c)
Picture: (a) Plant of deenanath grass (b) and (c) Inflorescence of Deenanath grass
Higher regularity of Holder continuous solutions of parabolic equations with singular drift velocities
Creators: name: Friedlander, Susan
name: Vicol, Vlad
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Motivated by an equation arising in magnetohydrodynamics, we prove that Holder continuous weak solutions of a nonlinear parabolic equation with singular drift velocity are classical solutions. The result is proved using the space-time Besov spaces introduced by Chemin and Lerner, combined with energy estimates, without any minimality assumption on the Holder exponent of the weak solutions.
Terminale E1-Liganden aus Elementen der Gruppe 15
Creators: name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 1995
Subjects: subject: 540 Chemie

description: Von spekulativen zu handhabbaren Verbindungen: Gleich zwei Arbeitsgruppen gelang auf unabhängigen Wegen die Synthese der lang gesuchten Metallkomplexe mit terminalen Phosphido(P3-)-Liganden, und beide Arbeiten sind in dieser Ausgabe der Angewandten Chemie zu finden. Cummins et al. berichten auf Seite 2181 ff. über die Synthese von 1, Schrock et al. auf Seite 2184 ff. über die Synthese von 2. Neben Phosphaalkinen RC P sind dies die ersten Verbindungen mit einfach koordiniertem Phosphor und für Theoretiker und präparativ arbeitende Chemiker gleichermaßen von Interesse. R C(CD3)2CH3; Ar 3,5-C6H3Me2; N3N (Me3SiNCH2CH2)3N; M Mo, W. [(NRAr)3Mo P] 1 [(N3N)M P] 2
A Historic Context Statement for a World War II Era Black Officers' Club at Fort Leonard Wood, Missouri - Report (Legacy 93-0945)
Creators: name: Smith, Steven
Publisher: name: DoD Legacy Resource Management Program
Year: 1998
Subjects: subject: Missouri
valueUri: https://core.tdar.org/browse/geographic-keyword/168/missouri
subject: Fort Leonard Wood
valueUri: https://core.tdar.org/browse/geographic-keyword/80939/fort-leonard-wood
subject: World War II
valueUri: https://core.tdar.org/browse/temporal-keyword/3992/world-war-ii
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Historic Context
valueUri: https://core.tdar.org/browse/other-keyword/42191/historic-context
subject: African American History
valueUri: https://core.tdar.org/browse/other-keyword/86479/african-american-history
subject: World War II
valueUri: https://core.tdar.org/browse/other-keyword/124433/world-war-ii
subject: Black Officer's Club
valueUri: https://core.tdar.org/browse/other-keyword/166548/black-officers-club
subject: National Register of Historic Places
valueUri: https://core.tdar.org/browse/other-keyword/1572/national-register-of-historic-places
subject: Mural
valueUri: https://core.tdar.org/browse/other-keyword/143191/mural
subject: Stonework
valueUri: https://core.tdar.org/browse/other-keyword/166551/stonework
subject: Building 2101
valueUri: https://core.tdar.org/browse/other-keyword/166552/building-2101
subject: Samuel Albert Countee
valueUri: https://core.tdar.org/browse/other-keyword/166549/samuel-albert-countee
subject: German POW
valueUri: https://core.tdar.org/browse/other-keyword/166550/german-pow
subject: Fort Leonard Wood
valueUri: https://core.tdar.org/browse/other-keyword/33212/fort-leonard-wood
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research

description: This context is the first effort at evaluating a WWII period building at Fort Leonard Wood, Missouri, for nomination to the National Register. The building was used as the Black Officers' Club in the time before integration of the forces. The document includes an appendix discussion of German POW stonework at Fort Leonard Wood.
Interaction process on the phases interface “bitumen – dispersed phase from cement stone”
Creators: name: Inozemtcev, Sergei
name: Korolev, Evgeniy
Publisher: name: Санкт-Петербургский политехнический университет Петра Великого
Year: 2018
Subjects: subject: phase interface
subject: bitumen
subject: filler
subject: adsorption
subject: adsorption-solvate layer
subject: thickness
subject: interaction
subject: граница раздела фаз
subject: битум
subject: наполнитель
subject: адсорбция
subject: адсорбционно-сольватный слой
subject: толщина
subject: взаимодействие

description: The results of the study of the effect of the main properties of mineral fillers from cement stone with different degrees of hydration, phase composition and pore volume characteristics on the properties of the bitumen-mineral binder are presented. Dependencies of the influence of mineral filler on the basis of cement stone on the basic parameter of the structure of bitumen-mineral binders-the thickness of the adsorption-solvate layer of bitumen, which was established using the rheological method. Analysis of the empirical data obtained shows that bitumen chemically interacts with mineral fillers obtained from cement stone. It is proved that during the interaction of bitumen with the waste of cement concrete, processes of physical and chemical adsorption take place. Maltenes of bitumen penetrate the pores of cement concrete during physical adsorption. Calcium hydroxide Ca(OH)2 and bitumen active functional groups -OH, -COH, -COOH, C = C-, etc. interact with the formation of new bonds that are reflected in IR spectra in the form of peaks of 820 cm-1, 944 cm-1, 947 cm-1 or 1430 cm-1. The intensity of the given processes and the degree of the structuring of the bituminous films will depend on the degree of hydration of the cement in the fragments of the concrete present in construction waste. When the degree of hydration increases, the thickness of the adsorption-solvate coating of bitumen increases from 1.5 to 2 times. During the interaction of bitumen with the waste of the building cement of concrete, more heat-resistant bitumen films are formed. When the degree of hydration is an increment, the resistance to high-temperature exposure of structured bitumen increases from 1.2 to 2.4 times.
Synthese, Charakterisierung und Reaktivität heterodinuklearer Komplexe: [(CO)4(μ-PtBu2)Rh(CO)L](Fe-Rh) (L = CO2, HPtBu2), [(CO)3,Co(μ-H)(μ-PtBu2)Rh(CO)(HPtBu2)](Co-Rh)
Creators: name: Walther, B.
name: Böttcher, Hans-Christian
name: Scheer, Manfred
name: Fischer, Gottfried
name: Fenske, D.
name: Süss-Fink, G.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: [Rh2(μ-Cl)2(HPtBu2)4] (2) reagiert mit K[Co(CO)4] bzw. PPN[FeH(CO)4] zu den heterodinuklearen Komplexen [(CO)3Co(μ-H)(μ-PtBu2)Rh(CO)(HPtBu2)] (5) bzw. [(CO)4Fe(μ-PtBu2)Rh(CO)-(HPtBu2)] (4). 5 wird mit KH in sein Anion überführt, das als PPN[(CO)3CO(μ-PtBu2)Rh(CO)-(HPtBu2)] (PPN[8]) isoliert wird. PPh3 substituiert einen Carbonylliganden am Co-Atom von 5. Die Struktur des resultierenden Komplexes [(CO)2(PPh3)Co(μ-PtBu2)Rh(CO)(HPtBu2)] (7) wurde röntgendiffraktometrisch bestimmt. Es wird über Hydroformylierungsreaktionen mit diesen Komplexen berichtet.
Density and Temperature of Bosons from Quantum Fluctuations
Creators: name: Zheng, Hua
name: Bonasera, Aldo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A method to determine the density and temperature of a system is proposed based on quantum fluctuations typical of Bosons in the limit where the reached temperature T is close to the critical temperature $T_c$ for a Bose condensate at a given density $ρ$. Quadrupole and particle multiplicity fluctuations relations are derived in terms of $\frac{T}{T_c}$. This method is valid for weakly interacting infinite and finite Boson systems. As an example, we apply it to heavy ion collisions using the Constrained Molecular Dynamics (CoMD) approach which includes the Fermi statistics. The model shows some clusterization into deuteron and $α$ clusters which could suggest a Bose condensate. However, our approach demonstrates that in the model there is no Bose condensate but it gives useful informations to be tested experimentally. We stress the differences with methods based on classical approximations. The derived 'quantum' temperatures are systematically higher than the corresponding 'classical' ones. The role of the Coulomb charge of fragments is discussed.
Darstellung und Charakterisierung komplexierter Triphosphane—Die Kristallstruktur von HP[PPh2Cr(CO)5]2
Creators: name: Scheer, Manfred
name: Gremler, Steffen
name: Herrmann, Eckhard
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 540 Chemie

description: Die Umsetzung von MIP(SiMe3)2 (MI = Li, Na, K) mit R2P(Cl)M′(CO)5 (R = Ph, Et; M′ = Cr, W), wie auch die Reaktion von PCl3 mit MIPPh2M′(CO)n (MI = Li, K; M′ = Cr, W, n = 5; M′ = Fe, n = 4) führt zur Bildung der Triphosphankomplexe des Typs HP[PR2M′(CO)n]2. An Hand 31P-NMR-spektroskopisch nachweisbarer Zwischenprodukte wird der Bildungsweg diskutiert. Die Verbindungen werden mittels 1H-, 13C-, 31P-NMR, IR-Spektroskopie und Massenspektrometrie charakterisiert. HP[PPh2Cr(Co)5]2 (1) kristallisiert in der Raumgruppe C2/c mit a 1873.0(7), b 934.8(4), c 2202.5(9) pm, β 113.76° (bei −95°C) und Z = 4. Das Molekül besitzt kristallografische zweizählige Symmetrie, wobei die zentrale PH-Einheit beiderseits der zweizähligen Achse ungeordnet ist. Die P---P-Bindungslängen betragen 219.5(2) und 223.5(2) pm, mit P---P---P 121.2(1)°.
Skin microbiota variation in Indian families
Creators: name: Renuka Potbhare
name: Ameeta Ravikumar
name: Eveliina Munukka
name: Richa Ashma
name: Leo Lahti
Publisher: name: Zenodo
Year: 2023

description: The present study involves seventy-two individuals from fifteen families in two geographical regions of Maharashtra, India. This study underscores the diversity and commonalities in skin microbiota composition within and between families.
Di-1-adamantylphosphine-containing diiron propane-1,3-dithiolate pentacarbonyl complex: Synthesis, structure, electrochemistry, and fungicidal activity
Creators: name: Yan, Lin
name: Yang, Jun
name: Liu, Xu-Feng
name: Li, Yu-Long
name: Liu, Xing-Hai
name: Jiang, Zhong-Qing
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: We report a novel diiron propane-1,3-dithiolate complex [Fe2(CO)5PH(C10H15)2(μ-SCH2CH2CH2S)] containing a di-1-adamantylphosphine ligand. Trimethylamine N-oxide-induced decarbonylation of complex [Fe2(CO)6(μ-SCH2CH2CH2S)] followed by reaction with di-1-adamantylphosphine yielded the target product in 86% yield. The title compound was identified by spectroscopy, elemental analysis, as well as further determined by single crystal X-ray diffraction analysis. Electrochemical properties were studied by cyclic voltammetry without or with HOAc. Interestingly, the fungicidal activity of the title compound showed moderate activity against Phytophthora infestans, Pyricularia oryae, Botrytis cinerea, and Physalospora piricola.
Phosphorus-nitrogen compounds. Part 56. Comparative syntheses and spectral properties of multiheterocyclic 2-cis-4-ansa and spiro-ferrocenyl (N/O)cyclotetraphosphazenes: Antituberculosis and antimicrobial activity and DNA interaction studies
Creators: name: Binici, Arzu
name: Okumuş, Aytuğ
name: Yakut, Mehtap
name: Elmas, Gamze
name: Kılıç, Zeynel
name: Koyunoğlu, Dila
name: Açık, Leyla
name: Şimşek, Hülya
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: In the present study, two types of starting compounds; hexachloro(N/O)-cyclotetraphosphazenes containing mono-ferrocenyl-pendant arm, namely, mono-ferrocenyl-2-cis-4-dichloro-ansa-(2,4-ansa; 2) and mono-ferrocenyl-spiro-(spiro; 3) were prepared by the reaction of N4P4Cl8 (1) with sodium 3-(N-ferrocenylmethylamino)-1-propanoxide (L). Reactions of 2,4-ansa (2) with excess benzylamine and n-hexylamine resulted in the formation of partly substituted 2-cis-4-dichloro-ansa-cyclotetraphosphazenes (2a and 2b). In contrast, spiro (3) gave fully substituted mono-ferrocenyl-spiro-cyclotetraphosphazenes (3a and 3b) with excess benzylamine and n-hexylamine. As expected, the 2,4-ansa cyclotetraphosphazenes (2, 2a, and 2b) have two distinct stereogenic P-centers. The structures of cyclotetraphosphazenes were evaluated by elemental analysis, ESI-MS, FTIR, 1H, 13C, and 31P-NMR techniques. The antibacterial and antifungal activities against some selected bacteria and yeast strains, antituberculosis activities against Mycobacterium tuberculosis H37Rv, and DNA cleavage activities of mono-ferrocenyl-cyclotetraphosphazenes were also discussed. Compounds 2b, 3a, and 3b exhibited antifungal activity against C. albicans (MIC= 156.3 µM) higher than reference antibiotic Ketoconazole. Moreover, four compounds displayed antituberculosis activity against the M. tuberculosis H37RV. Compound 2a (20 μg/mL) is the most potent of the four compounds.
Detecting Ontological Conflicts in Protocols between Semantic Web Services
Creators: name: Ghosh, Priyankar
name: Dasgupta, Pallab
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The task of verifying the compatibility between interacting web services has traditionally been limited to checking the compatibility of the interaction protocol in terms of message sequences and the type of data being exchanged. Since web services are developed largely in an uncoordinated way, different services often use independently developed ontologies for the same domain instead of adhering to a single ontology as standard. In this work we investigate the approaches that can be taken by the server to verify the possibility to reach a state with semantically inconsistent results during the execution of a protocol with a client, if the client ontology is published. Often database is used to store the actual data along with the ontologies instead of storing the actual data as a part of the ontology description. It is important to observe that at the current state of the database the semantic conflict state may not be reached even if the verification done by the server indicates the possibility of reaching a conflict state. A relational algebra based decision procedure is also developed to incorporate the current state of the client and the server databases in the overall verification procedure.
α-Bromination of xanthenediones: A mild and efficient approach using N-bromosuccinimide
Creators: name: Shashi, R.
name: Begum, Noor Shahina
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The present work deals with a practically efficient protocol designed for the synthesis of 2,7-dibromoxanthenediones using N-bromosuccinimide (NBS) in the presence of p-toluene sulfonic acid (PTSA). A combination of NBS and PTSA in chloroform is an efficient system for selective α-bromination of xanthenediones under mild reaction conditions. The main advantage of this method is short reaction duration, mild reaction conditions, easy work up and in addition the method provides excellent yields. All the compounds synthesized were characterized by spectroscopic techniques.
[Cr(CO)5PCl3] - A P1 Building Block for the Formation of Complexes with cyclo-Px Ligands (x = 3, 5) [[Cr(CO)5PCI3] - ein P1-Baustein zur Bildung von Komplexen mitcyclo-Px-Liganden (x = 3, 5)]
Creators: name: Scheer, Manfred
name: Friedrich, Gabriele
name: Schuster, Kay
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: Multiple PP bond formation in the coordination sphere of transition metals occurs in reactions of [Cr(CO)5PCl3] with carbonylcyclopentadienylmolybdenates and -ferrates. Complexes with cyclo-P3 and cyclo-P5 ligands (like 1), respectively, result.
No Sommerfeld resummation factor in e+e- -> ppbar ?
Creators: name: Ferroli, Rinaldo Baldini
name: Pacetti, Simone
name: Zallo, Adriano
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Sommerfeld rescattering formula is compared to the e+e- -> ppbar BaBar data at threshold and above. While there is the expected Coulomb enhancement at threshold, two unexpected outcomes have been found: |G^p (4M_p^2)|= 1, like for a pointlike fermion, and moreover data show that the resummation factor in the Sommerfeld formula is not needed. Other e+e- -> baryon-antibaryon cross sections show a similar behavior near threshold.
description: 9 pages, 6 figures
Cyclo-P4 Ligands with a Maximum of Electron-Donating Ability
Creators: name: Scheer, Manfred
name: Becker, Uta
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 540 Chemie

description: The reactions of P4 with metal carbonyls of chromium, tungsten and iron lead to square planar cyclo-P4 ligand complexes and to a rectangular distorted P4 ligand complex, respectively. Furthermore the study of the transformation pathway of tetrahedral P4 to the corresponding Px ligands reveals a stepwise (PP) bond cleavage with a bicyclotetraphosphine intermediate to give a cyclo-P4 containing product.
Facing the unknown : exploring the impact of possible infertility on young adult childhood cancer survivors
Creators: name: Newton, Kelly
Publisher: name: University of British Columbia
Year: 2017

description: Background: Approximately 83% of children diagnosed with cancer survive into adulthood. Yet, adult survivors of childhood cancer (ACCS) are at high risks for late effects, conditions that develop 5 or more years following cancer treatment. Cancer treatments during childhood can cause infertility, a late effect associated with psychological distress and poor quality of life. However, not all ACCS at risk for infertility have a definitive diagnosis and the experience of facing an unknown fertility status, and specific support needs of survivors remain poorly understood. Purpose: The primary purpose of this research was to describe the challenges young ACCS experience when facing an unknown fertility status. This study also examined the ways in which men and women differed in their perceptions and experiences of unknown fertility. Methods: This interpretive descriptive qualitative study included 10 ACCS, 5 men and 5 women, who participated in semi-structured interviews. Interview data were analyzed using an exploratory approach, allowing for content-driven inductive analysis, which involved open coding and constant comparative techniques to identify themes that captured the main similarities and differences in ACCS experiences. Results: Six central themes emerged. First, living in the unknown is emotionally challenging for ACCS, in that the related fear, sadness and anxiety complicates the lives of the participants. Second, possible infertility influences romantic relationships by impeding emotional connections and contributing to the worry of disappointing one’s partner. Third, determining when to seek fertility testing is difficult, with readiness to have children and complications associated with fertility testing important considerations. Fourth, discussing fertility with health care providers, friends and family is awkward. Fifth, ACCS receive limited fertility-related education across the cancer trajectory because of their young age at time of treatment and health care provider insufficient infertility-related knowledge. Lastly, ACCS perceive that fertility testing and confirmed infertility is detrimental to women but not men, which they attribute to both biological and gender differences. Conclusion: This study provides beginning insights into the experiences of young ACCS as they navigate an unknown fertility status, and highlights existing gaps in fertility-related healthcare services.
COVID-19 in Adults with Disabilities: Disparities in Prevalence, Health Care Access and Use and Employment Outcomes
Creators: name: McLaren, Zoë
name: Miller, Nancy A.
Publisher: name: Maryland Shared Open Access Repository
Year: 2024

description: Retirement and Disability Research Consortium, Twenty-Sixth Annual Meeting, August 7-9, 2024, National Press Club 529 14th Street, NW Washington, DC 20045
The Formation of cyclo-P4 Ligands with Maximum Electron Donor Ability
Creators: name: Scheer, Manfred
name: Troitzsch, Christa
name: Jones, Peter G.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: The opening of a PP edge in the P4 tetrahedron by a Rh complex fragment is the first reaction step in the three-component reaction between [RhCp(CO)2], P4, and [Cr-(CO)5(thf)]. The tetraphosphabicyclobutane ligand thus formed may then use the lone pairs of all the phosphorus atoms for the coordination of Cr(CO)5 units to give 1. Loss of CO and cleavage of a PP bond leads to a complex in which the cyclo-P4 ligand acts as a 12-valence-electron donor. Cp = 5 - C5H4tBu, .
Die Kristallstruktur des Tris(dimethylthiophosphinyl)phosphans
Creators: name: Scheer, Manfred
name: Jones, Peter G.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: Durch Einkristallstrukturanalyse bei − 95°C wurde die Struktur von P[P(S)Me2]3 (IV) bestimmt. Es kristallisiert in der Raumgruppe P21 / n, mit den Zellkonstanten a 702.8(5), b 1708.9(10), c 1285.0(8) pm, β 101.99(6)° ( − 95°C) und Z = 4. Das pyramidale Molekül weist mittlere P---P-Bindungslängen von 222.6(2) pm und P---P---P-Bindungswinkel von 105.7° auf. Es zeigt annähernd die gleiche Orientierung der Schwefelatome wie die freien Elektronenpaare in P[P(Me)SiMe3]3. Dieser Befund steht im Gegensatz zu den Strukturen der analogen CH-Derivate HC[PR2]3 (R = Me, Ph) und HC[P(S)Ph2]3.
Synthese und spektroskopische Eigenschaften neuer komplexierter Triphosphane
Creators: name: Scheer, Manfred
name: Gremler, St.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: Bimetallic and trimetallic triphosphine complexes; synthesis; NMR; IR
subject: 540 Chemie

description: Über die Umsetzung von PCl3 mit [HPPh2W(CO)5] in Gegenwart von NEt3 werden stufenweise die komplexierten halogenhaltigen Di- und Triphosphane [Cl2PPPh2W(CO)5] und ClP[PPh2W(CO)5] gebildet. Die Synthese von dreifach mit [M(CO)5]-Gruppen komplexierten Triphosphanen des Typs [{M(CO)5}(H)P{PPh2M(CO)5}] (M = M = Cr oder Mo) gelingt nicht ausgehend von HP[PPh2M(CO)5] in der Reaktion mit [M' (CO)5THF], sondern diese werden über die Umsetzung von [M (CO)5PCl3] mit Li[PPh2M(CO)5] gebildet. Die Produkte werden mittels NMR-, IR-Spektroskopie und Massenspektrometrie charakterisiert.
Silylamination of electrophilic alkynes
Creators: name: McOnie, Sarah L.
name: Baines, Kim M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: The addition of simple silylamines to dialkyl acetylenecarboxylates was investigated yielding both E and Z-silylenamines in contrast to an earlier report. Silylamination was also achieved with propiolates, expanding the scope of the silylamination reactions. The E-silylenamine was found to be the major isomer formed for all reactions yielding silylenamines. Hydrolysis of both E and Z-silylenamines cleanly yields the E-enamine.
Almost harmonic spinors
Creators: name: Ginoux, Nicolas
name: Grosjean, Jean-François
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We show that any closed spin manifold not diffeomorphic to the two-sphere admits a sequence of volume-one-Riemannian metrics for which the smallest non-zero Dirac eigenvalue tends to zero. As an application, we compare the Dirac spectrum with the conformal volume.
description: minor modifications of the published version
Structure of the neutron-rich N=7 isotones 10Li and 9He
Creators: name: Falou, H. Al
name: Leprince, A.
name: Orr, N. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The near threshold structure of the unbound N=7 isotones 10Li and 9He has been investigated using proton removal and breakup from intermediate energy (35 MeV/nucleon) secondary beams of 11Be and 14,15B. The coincident detection of the beam velocity 9Li and 8He fragments and neutrons permitted the relative energy of the in-flight decay of 10Li and 9He to be reconstructed. Both systems were found to exhibited virtual s-wave strength near threshold together with a higher-lying resonance.
description: 4 pages, 2 figures, Contribution to INPC2010 - "International Nuclear Physics Conference", Vancouver, Canada, 4-9 July 2010, Proceedings to be published in Journal of Physics: Conference Series
M1P(SiMe3)2 (M1 = Li, Na, K) - Ein Baustein zur Synthese von iso-Tetraphosphanen des Typs P(PR2)3 (R = Ph, cyclo-C6H11(Cy))
Creators: name: Scheer, Manfred
name: Gremler, S.
name: Herrmann, E.-G.
name: Grünhagen, U.
name: Dargatz, Manfred
name: Kleinpeter, E.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: Alkali metal-bis(trimethylsilyl) phosphides; iso-tetraphosphines; (PP)-bond formation
subject: 540 Chemie

description: Die Reaktion von M1P(SiMe3)2 (M1 = Li, Na, K) mit Diorganochlorphosphanen führt zur Bildung der iso-Tetraphosphane des Typs P(PR2)3 (R = Ph, Cy). 31P-NMR-spektroskopisch konnte der stufenweise Aufbau über Di- und Triphosphane als Zwischenprodukte nachgewiesen werden. Für t-Bu2PCl bleibt die Reaktion aus sterischen Gründen auf der Stufe des Triphosphans (t-Bu2P)2PH stehen. Es zeigt sich folgende Abstufung in der Reaktivität der Alkaliphosphide M1P(SiMe3)2: K > Na > Li.
Zum Reaktionsverhalten der Tris(dialkylthiophosphinyl)phosphane - Die Kristallstruktur von [Ag{O[P(S)Me2]2}2] [AsF6]
Creators: name: Gremler, St.
name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: Tris(dialkylthiophosphinyl)phosphines; reactivity; silver complex; x-ray structure
subject: 540 Chemie

description: Im Unterschied zu Tris(dialkylphosphoryl)phosphanen führt die Umsetzung von Tris(dimethylthiophosphinyl)phosphan mit Übergangsmetall-hexafluoroarsenaten vom Typ [M(SO2)m][AsF6]n (M = Ag, m = 0, n = 1; M = Fe, Cd, m = n = 2) nicht zu molekularen 2 : 1-Komplexen, sondern zu polymeren Materialien. Daraus läßt sich im Falle des Ag-Derivates [Ag{O[P(S)Me2]2}2][AsF6] gewinnen, welches über die Reaktion von Ag[AsF6] mit O[P(S)Me2]2 ebenfalls zugänglich ist. Es kristallisiert in der Raumgruppe P1 mit a = 862,5(2), b = 1 241,4(2), c = 1 254,0(3)pm, = 80,34(1), = 101,99(6), = 73,75(1)° (bei 20°C) und Z = 2. Das Zentralatom ist leicht verzerrt tetraedrisch von vier Schwefelatomen umgeben. Die mittleren (AgS)- bzw. (PS)-Bindungslängen betragen 259,4(2)pm bzw. 194,9(2)pm.
P4-Liganden mit maximaler Elektronendonorfähigkeit: V. Zur chlorierung eines cyclo-P4-ligand-komplexes
Creators: name: Scheer, Manfred
name: Dragatz, Manfred
name: Jones, Peter G.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: Bei Umsetzung mit PCl5 in CH3CN wird die Chlorierung einer (WP)-Bindung von [(CO)4W(η4-P4{W(CO)5}4)] unter Bildung von [{(CH3CN)2(CO)2WCl} (η3-P3{W(CO)5}2P{(Cl)W(CO)5})] beobachtet. Die Dichlorverbindung wird leicht in den stabileren Phosphahydroxy-Komplex [{(CH3CN)2(CO)2WCl}(η3-P3{W(CO)5}2P{(OH)W(CO)5})] umgewandelt. Der P 4-Ring ist gewinkelt und als (η3-P4)-Ligand an eine überdachende [(CH3CN)2(CO)2WCl]-Einheit fixiert. Nur drei Phosphoratome des P4-Liganden koordinieren an [W(CO)5]-Komplexfragmente.
P4-liganden mit maximaler Elektronendonorfähigkeit *1: III. Zum Reaktionsverhalten von Phosphankomplexen des Platins mit P4-phosphor
Creators: name: Scheer, Manfred
name: Dragatz, Manfred
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: Bei der Umsetzung von weißem Phosphor mit [(Ph3P)2pt(C2H4)] in Gegenwart von [Cr(CO)5THF] wird [{Cr(CO)5}2(P4)Pt (PPh3)2] gebildet. Die Verbindung wird mittels IR-, 1H-, 31P-, 195Pt-NMR- Spektroskopie und Massenspektrometrie charakterisiert.
Mono- und di-t-butylcyclopentadienyl-carbonyl-komplexe des mangans, eisens, cobalts und rhodiums—die kristallstrukturen von [CpxFe(CO)2]2 (Cpx = η5-C5H3(tBu)R-1,3; R = H, tBu)
Creators: name: Scheer, Manfred
name: Becker, Uta
name: Schuster, K.
name: Krug, A.
name: Hartung, H.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: Die Kristallstrukturanalyse weist [Cp′Fe(CO)2]2 (Cp′ = η5-C5H4tBu) als Zweikernkomplex mit einer (Metall-Metall)-Einfachbindung und einer trans-Anordnung der Cp′-Liganden aus. Demgegenüber ist [Cp″Fe(CO)2]2 (Cp″ = η5-C5H3tBu2) ein Zweikernkomplex mit cis-Konfiguration der Cp″-Gruppen. Die Synthese und die spektroskopische Charakterisierung (NMR, IR) von weiteren Cpx-haltigen Metallcarbonylen der Typen [CpxM(CO)n] (Cpx = Cp′, Cp″; M = Mn, n = 3; M = Co, Rh, n = 2) und [Cp″Co(μ-CO)]2 werden diskutiert.
The Reaction Behavior of White Phosphorus with Metal Complexes of Cobalt and Molybdenum
Creators: name: Scheer, Manfred
name: Becker, Uta
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 540 Chemie

description: Studies of the reaction pathway of tetrahedral P4 with cobalt- and molybdenum coordination compounds lead to novel complexes containing PX-ligands (x = 2,4) in unusual binding modes.
Exact solutions to the four Goldstone modes around a dark soliton of the nonlinear Schroedinger equation
Creators: name: Sykes, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This article is concerned with the linearisation around a dark soliton solution of the nonlinear Schrödinger equation. Crucially, we present analytic expressions for the four linearly-independent zero eigenvalue solutions (also known as Goldstone modes) to the linearised problem. These solutions are then used to construct a Greens matrix which gives the first-order spatial response due to some perturbation. Finally we apply this Greens matrix to find the correction to the dark-soliton wavefunction of a Bose-Einstein condensate in the presence of fluctuations.
description: 14 pages, 3 figures, submitted to Journal of Physics A
An efficient approach to the synthesis of 7-thioxosubstituted [1,3]thiazolo[3,2-c]pyrimidines and evaluation of their antimicrobial and antioxidant activities
Creators: name: Litvinchuk, Mariia B.
name: Bentya, Anton V.
name: Stasevych, Maryna V.
name: Zvarych, Viktor I.
name: Komarovska-Porokhnyavets, Olena Z.
name: Stadnytska, Nataliya E.
name: Lubenets, Vira I.
name: Rusanov, Eduard B.
name: Vovk, Mykhailo V.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: A preparatively convenient one-pot method for the synthesis of new 7-thioxo[1,3]thiazolo[3,2-c]pyrimidine derivatives 3a–3l by the cyclocondensation of 5-methyl(1,3-thiazolidin-2-ylidene)ketones 1a–1c with aroyl 2a–2d and 2-thienyl 2e isothiocyanates for 6–10 h boiling in acetone has been developed. Studies of the antimicrobial and antioxidant activities potential of the obtained compounds revealed that [2-methyl-5-(4-nitrophenyl)-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidine-8-yl](phenyl)methanone 3k, effect on the test culture of M. luteum at a concentration of 0.5% is close to the control drug vancomycin. Moreover, [5-(4-bromophenyl)-2-methyl-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidin-8-yl](phenyl)methanone 3j has an antibacterial effect on the specified test culture at a minimum inhibitory concentration of 15.6 μg/mL. In turn, 1-(2-methyl-5-(thiophen-2-yl)-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidin-8-yl]ethanone 3d can be considered promising for further structural modification to enhance the antioxidant effect. The structure of all synthesized substances was established by spectral analysis (1H and 13C NMR, LC–MS, and FT-IR). Additionally, the structure of compound 3i was confirmed by X-ray diffraction analysis.
The economic case for prevention in young people’s mental health: bullying
Creators: name: McDaid, David
name: Hopkin, Gareth
name: Knapp, Martin
name: Brimblecombe, Nicola
name: Evans-Lacko, Sara
name: Gan, Candy
Publisher: name: AMRC Open Research
Year: 2019

description: This report summarises a model of the potential economic impact of bullying prevention taking into account long-term economic consequences.

This work was funded and conducted by MQ: Transforming mental health
Di-1-adamantylphosphine-containing diiron propane-1,3-dithiolate pentacarbonyl complex: Synthesis, structure, electrochemistry, and fungicidal activity
Creators: name: Yan, Lin
name: Yang, Jun
name: Liu, Xu-Feng
name: Li, Yu-Long
name: Liu, Xing-Hai
name: Jiang, Zhong-Qing
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: We report a novel diiron propane-1,3-dithiolate complex [Fe2(CO)5PH(C10H15)2(μ-SCH2CH2CH2S)] containing a di-1-adamantylphosphine ligand. Trimethylamine N-oxide-induced decarbonylation of complex [Fe2(CO)6(μ-SCH2CH2CH2S)] followed by reaction with di-1-adamantylphosphine yielded the target product in 86% yield. The title compound was identified by spectroscopy, elemental analysis, as well as further determined by single crystal X-ray diffraction analysis. Electrochemical properties were studied by cyclic voltammetry without or with HOAc. Interestingly, the fungicidal activity of the title compound showed moderate activity against Phytophthora infestans, Pyricularia oryae, Botrytis cinerea, and Physalospora piricola.
Cross-cultural adaptation, reliability, and validity of the Sinhala version of the Cumberland Ankle Instability Tool: an instrument for measuring chronic ankle instability in Sri Lanka
Creators: name: Jayalath, Lakshmi
name: Senanayake, Kaveera
name: Deeghanu, Menuja
name: Pathirana, Charith
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: To develop the Sinhala version of the Cumberland Ankle Instability Tool (CAIT-Sin) and evaluate its validity and reliability in native Sinhala speakers. The CAIT was translated and cross-culturally adapted into Sinhala, using a forward-backward translation method. CAIT-Sin, Karlsson score, and visual analog scale (VAS) were filled out by 156 university athletes and students with and without ankle instabilities, in order to test internal consistency, test-retest reliability, criterion validity, floor and ceiling effect, and discriminative ability of the CAIT-Sin. Furthermore, ROC analysis was used to identify the presence of chronic ankle instability (CAI). The CAIT-Sin was with a high internal consistency (Cronbach’s alpha = 0.88) and excellent test-retest reliability (ICC2,1 = 0.95, 95% CI: 0.93–0.96). The CAIT-Sin exhibited strong and positive correlations with the Karlsson score (r = 0.832, p < 0.001) and VAS (r = 0.876, p < 0.001). No ceiling or floor effect was observed in individuals with CAI. A CAIT-Sin score of 26 or lower indicated the presence of CAI. The clinicians and researchers in Sri Lanka can use the CAIT-Sin for assessing and measuring CAI because its validity and reliability are confirmed.Implications for RehabilitationFunctional ankle instability is an ongoing chronic condition which presents for rehabilitation therapist.Outcome measurements are crucial in the rehabilitation of ankle sprains and it is important to administer these subjective outcome measures in their native language.The CAIT-Sin was found to have high internal consistency and excellent test-retest reliability. Functional ankle instability is an ongoing chronic condition which presents for rehabilitation therapist. Outcome measurements are crucial in the rehabilitation of ankle sprains and it is important to administer these subjective outcome measures in their native language. The CAIT-Sin was found to have high internal consistency and excellent test-retest reliability.
A first-principles DFT study on the adsorption behaviour of CO, CO2, and O3 on pristine B24N24 and silicon-decorated B24N24 nanosheet
Creators: name: Hasan, Md. Mehade
name: Kabir, Md. Humaun
name: Badsha, Md. Alamgir
name: Hossain, Md. Rakib
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Using first-principles within density functional (DFT) theory, adsorption of CO, CO2, and O3 gas molecules on pristine B24N24 (BN) and Silicon-decorated B24N24 (SiBN) nanosheets has been investigated. Adsorption energies, Mulliken charge, dipole moments, and global indicies are estimated to predict the adsorption behavior of CO, CO2, and O3 by using DFT method at 6-31 G (d, p)/B3LYP level. After silicon doping, unlike CO and CO2, sensing performance improves for the case of O3. The findings reveal that the interaction between O3 and SiBN is stronger than that between O3 and bare BN, suggesting that silicon helps to strengthen the interaction of O3 molecule with BN nanosheet. DFT calculations clearly indicate that the Si-doped BN nanosheet would be a promising O3 gas sensor. To prove the successful interactions among the adsorbents (BN and SiBN) and adsorbates (CO, CO2, and O3), the UV-vis spectra have been analyzed for every system where both the blue shift and red shift have been confirmed. Finally, it can be said that pristine BN nanosheet is a better sensor than SiBN for CO, CO2 gas molecules while SiBN is better for O3 molecules.
Silylamination of electrophilic alkynes
Creators: name: McOnie, Sarah L.
name: Baines, Kim M.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: The addition of simple silylamines to dialkyl acetylenecarboxylates was investigated yielding both E and Z-silylenamines in contrast to an earlier report. Silylamination was also achieved with propiolates, expanding the scope of the silylamination reactions. The E-silylenamine was found to be the major isomer formed for all reactions yielding silylenamines. Hydrolysis of both E and Z-silylenamines cleanly yields the E-enamine.