X-ray absorption study of the ferromagnetic Cu moment at the YBa_(2)Cu_(3)O_(7)/La_(2/3)Ca_(1/3)MnO_(3) interface and variation of its exchange interaction with the Mn moment

With x-ray absorption spectroscopy and polarized neutron reflectometry we studied how the magnetic proximity effect at the interface between the cuprate high-TC superconductor YBa_(2)Cu_(3)O_(7) (YBCO) and the ferromagnet La_(2/3)Ca_(1/3)MnO_(3) (LCMO) is related to the electronic and magnetic properties of the LCMO layers. In particular, we explored how the magnitude of the ferromagnetic Cu moment on the YBCO side depends on the strength of the antiferromagnetic (AF) exchange coupling with the Mn moment on the LCMO side. We found that the Cu moment remains sizable if the AF coupling with the Mn moments is strongly reduced or even entirely suppressed. The ferromagnetic order of the Cu moments thus seems to be intrinsic to the interfacial CuO_(2) planes and related to a weakly ferromagnetic intraplanar exchange interaction. The latter is discussed in terms of the partial occupation of the Cu 3d_(3z^(2)−r^(2)) orbitals, which occurs in the context of the so-called orbital reconstruction of the interfacial Cu ions.

Annex 7.1.a. Pràctica 3. Desenvolupament psicomotor de 3 a 6 anys

El document és l'anex 7.1.a. de la práctica 3. Desenvolupament psicomotor de 3 a 6 anys.

Accounting and business practice. Incoming business forms. Tablet 1-4 for sets 3-7.

Mode of access: Internet.

Operator's manual : fixture, lathe, metal cutting for 2 inch diameter round or 2 inch square stock, 360 degree index ring, 12-1/2 high, 5 wide, 3-7/8 vertical travel (Numeric Products Company model 312) (3465-022-8817).

"29 November 1967."

Operator's manual : boring machine, engine cylinder, portable, 3 1/2 to 7 1/2 bore diameter, 18 inch depth of bore, 110-volt, 60-cycle, single-phase (Cedar Rapids Engineering Company model FL) (4910-223-9734).

"November 1965."

Macrocyclic systems containing 2,6,9-trioxabicyclo[3.3.1]-nona-3,7-dienes as chiral spacer groups: Synthesis, stereochemical features and preliminary complexation properties

Novel 2:2-macrocycles bearing bridged concave 2,6,9-trioxabicyclo[3.3.1]nona-3,7-dienes as chiral spacer units were obtained by cyclocondensation reaction of the chiral bisacid chloride and the corresponding diols, while use of methylene diamines instead of diols afforded 1:1 macrocycles only. Applying the same, but now template-assisted, experimental procedure to the reaction of the bisacid chloride with triethylene glycol brought about a significant increase in yield as well as a suitable simplification of the work-up during preparation and separation of the corresponding 1:1 as well as 2:2 macrocycles, when compared to results reported previously. HPLC separation on chiral columns revealed the presence of diastereoisomers [RR(S,S)- and RS-(meso)-forms] for all 2:2 macrocycles, which was further evidenced by the CD spectrum of one of those species as an example. Preliminary ESI-MS experiments indicated strong complexation abilities of the sulphur-containing ligand towards Ag(I), Cu(II) and Au(III) ions.

A PALAVRA DE JAVÉ EM JEREMIAS 7,1 8,3: UMA ANÁLISE DA PROFECIA COMO PORTADORA DE UM CONFLITO SOCIAL ORIUNDO DA COBRANÇA EXCESSIVA DE TRIBUTO

Esta pesquisa privilegia o enfoque histórico ao analisar o texto bíblico, como produto histórico-social, a partir do método sociológico. O material disposto ao longo desta investigação pretende ser uma ajuda para a compreensão de alguns textos do profeta Jeremias. Partindo do princípio de que o texto possui um vínculo com a sociedade na qual foi criado e fazendo uso da metodologia exegética, realiza-se uma análise histórico-sociológica da palavra de Javé em Jeremias 7,1 8,3 como portadora de um conflito social oriundo da cobrança excessiva de tributo em uma sociedade judaíta marcadamente tributária. Busca-se, por esse meio, o sentido do texto dentro do provável cenário histórico-social que permeia o escrito. Para isso, faz-se necessária a investigação dos aspectos preliminares que envolvem tanto o livro de Jeremias, sobretudo, os polêmicos caps. 7,1 8,3, como também a questão do estudo da pesquisa moderna acerca dessa magnífica obra. Vale a pena também salientar o conceito semiótico da poética sociológica que procura estudar a interação causal entre literatura e seu meio social. Além disso, avalia-se o âmbito histórico social da unidade literária alvo de nossa pesquisa, situando-a em seu provável contexto histórico social e determinando a datação, o cenário político e o modo de produção vigente nesse período. Não olvidando, contudo, do fator desencadeador do conflito social e o papel da religião nesse cenário. Além do mais, examina-se o sentido dos textos específicos ou unidades literárias concluídas (perícopes) presentes nos caps. 7,1 8,3, tendo como pressuposto o modelo teórico do modo de produção tributário e os passos da exegese histórico-social. O mecanismo socioanalítico do modo de produção tributário servirá como instrumento de análise da condição socioeconômica, centrando-se nos componentes externos incorporados na coletânea, não em sua história redacional, mas sim em sua formação social.

Expert Opinion: Serious Concerns regarding Western Australian Planning Commission (WAPC) Draft Policy 3.7 “Planning for Bushfire Risk Management” and associated Guidelines (May 2014)

10 page document containing expert assessment of shortcomings of Western Australian State Planning Policy SPP3.7- Planning for Bushfire Risk Management. Document produced on behalf of QUT and submitted to and published by the WAPC as part of their public consultation process for their draft policy.

Dialkyl (3-Aryl- 1,2,4-oxadiazol-5-yl)phosphonates: Synthesis and Thermal Behavior-Evidence for Monomeric Alkyl Metaphosphate

Dialkyl (3-aryl-l,2,4-oxadiazol-5-yl)phosphonate6sa -h have been obtained by 1,3-dipolar cycloaddition of arenenitrile oxides 5a-f to dialkyl phosphorocyanidates (4a and 4b) in yields ranging between 30% and 58%. A standardized method for obtaining cyanidates 4a and 4b has been established. The diethyl thiophosphorocyanidate (4c) is less reactive than 4a and 4b, only the 3-(4'-nitrophenyl) derivative 6i being obtainable. While the IR and NMFt spectra of 6a-i were unexceptional, their UV spectra showed evidence of conjugative interaction in high degrees between the phosphonate and heterocyclic moieties as well as a varying conjugative interaction between the heterocyclic and aryl moieties. The oxadiazoles 6a-h are thermally labile and yield trialkyl phosphates 7 as the only identifiable products. A mechanism based on the intermediacy of monomeric alkyl metaphosphate 11 in the formation of trialkyl phosphate was postulated, and supportive evidence in the form of trapping the metaphosphate with acetophenone has been obtained.

Structure of 2-(2,6-dimethoxyphenyl)-2,5- dimethylbicyclo[3.2.1]octane-6,8-dione

C18H2204, orthorhombic, P212~21, a = 7.343 (4), b = 11.251 (4), c = 19.357 (4)A, Z = 4, Dr, ' = 1.20, D e = 1.254 g cm -3, F(000) = 648, p(MoKa) = 0.94 cm -~. X-ray intensity data were collected on a Nonius CAD-4 diffractometer and the structure was solved by direct methods. Full-matrix least-squares refinement gave R = 0.052 (R w = 0.045) for 1053 observed reflections. The stereochemical configuration at C(2) has been shown to be 2-exo-methyl-2-endo-(2,6-dimethoxyphenyl), i.e. (3) in contrast to the structure (2) assigned earlier based on its ~H NMR data.

The structures of ethyl 1,2,2-tricyano-3,3-dimethylcyclopropane-1-carboxylate and ethyl 2',3,3'-tricyanocyclohexanespirocyclopropane-2'-carboxylate

The crystal and molecular structures of C ,,H,IN302 (I) and C14HIsN302 (II) have been determined by direct methods using three-dimensional X-ray diffractometer data. Crystals of (I) are orthorhombic, space group Pna21, with a = 14.662(6), b = 10.492(5), c = 7.375 (3)A, Z = 4, V = 1134.5 A 3, D O = 1.25 (by flotation), D e = 1.269 Mgm -a, g(MoKa) = 0.085 mm -1. Crystals of (II) are monoclinic, space group P21/a, with a = 7.886 (5), b = 22.011 (8), c = 8.100 (3) A, fl = 103.12 (5) °, Z = 4, V = 1369.2 A 3, D O = 1.23 (by flotation), D e = 1.255 Mg m -3, g(Mo Kct) = 0.080 mm -1. Least-squares full-matrix refinement based on 782 (I) and 1400 independent reflections (II) converged at R = 0.040 (I) and 0.042 (II). The effect of electron-withdrawing substituents on the geometry of the cyclopropane ring is discussed.