bluuebunny/crossref_metadata_2025_split huggingface dataset:
MICROWAVE TYPE III PAIR BURSTS IN SOLAR FLARES
Authors: Tan Baolin , Mészárosová Hana , Karlický Marian , Huang Guangli , Tan Chengming 
Published: February 2016

ABSTRACT
A solar microwave type III pair burst is composed of normal and reverse-sloped (RS) burst branches with oppositely fast frequency drifts. It is the most sensitive signature of the primary energy release and electron accelerations in flares. This work reports 11 microwave type III pair events in 9 flares observed by radio spectrometers in China and the Czech Republic at a frequency of 0.80–7.60 GHz during 1994–2014. These type III pairs occurred in flare impulsive and postflare phases with separate frequencies in the range of 1.08–3.42 GHz and a frequency gap of 10–1700 MHz. The frequency drift increases with the separate frequency (f

x
), the lifetime of each burst is anti-correlated to f

x
, while the frequency gap is independent of f

x
. In most events, the normal branches are drifting obviously faster than the RS branches. The type III pairs occurring in flare impulsive phase have lower separate frequencies, longer lifetimes, wider frequency gaps, and slower frequency drifts than that occurring in postflare phase. Also, the latter always has strong circular polarization. Further analysis indicates that near the flare energy release sites the plasma density is about

cm−3 and the temperature is higher than 107 K. These results provide new constraints to the acceleration mechanism in solar flares.
A NORMAL SUPERMASSIVE BLACK HOLE IN NGC 1277
Authors: Graham Alister W. , Durré Mark , Savorgnan Giulia A. D. , Medling Anne M. , Batcheldor Dan , Scott Nicholas , Watson Beverly , Marconi Alessandro 
Published: February 2016

ABSTRACT
The identification of galaxies with “overly massive” black holes requires two measurements: a black hole mass (M
bh) and a host spheroid mass (

). Here we provide our measurements for NGC 1277. Our structural decomposition reveals that NGC 1277 is dominated by a “classical” spheroid with a Sérsic index n = 5.3, a half-light radius

, and a stellar mass of

(using

, Martín-Navarro et al.). This mass is an order of magnitude greater than originally reported. Using the latest M
bh–n, M
bh–

, and M
bh–σ relations, the expected black hole mass is, respectively, (

, (

, and (

(using σ = 300 km s−1) for which the “sphere-of-influence” is 0.″31. Our new kinematical maps obtained from laser guide star assisted, adaptive optics on the Keck I Telescope dramatically reaffirm the presence of the inner, nearly edge-on, disk seen in the galaxy image. We also report that this produces a large velocity shear (∼400 km s−1) across the inner 0.″2 (70 pc) plus elevated values of

across the inner

region of the galaxy. Our new multi-Gaussian expansion (MGE) models and Jeans Anisotropic MGE analysis struggled to match this extended component. Our optimal black hole mass, albeit a probable upper limit because of the disk is 1.2 × 109 M
⊙ (

). This is an order of magnitude smaller than originally reported and 4 times smaller than recently reported. It gives an

ratio of 0.45% in agreement with the median (≈0.5%) and range (0.1%–5.0%) observed in non-dwarf, early-type galaxies. This result highlights the need for caution with inner disks.
Mise à l’épreuve d’un groupe d’expression pour enfants ayant un parent ou un proche incarcéré
Authors: Hirschelmann-Ambrosi Astrid , Winter Anne , Lemale Céline , Ventéjoux Aude , Bouchard Claude 
Published: February 2016

Dans le contexte pénitentiaire actuel de la lutte contre la désocialisation, des associations offrent un soutien psychologique et social aux familles des prisonniers. La recherche-action « Regards d’enfants sur l’incarcération » dont rend compte cet article, menée en collaboration avec deux de ces associations, consiste à créer des groupes de soutien pour les enfants qui ont un parent ou un proche en prison. L’objectif de cette recherche-action est d’évaluer les conditions, moyens et outils qui permettraient d’offrir une possibilité d’échange aux enfants pour leur rendre possible de partager leurs expériences et d’exprimer ce qui ne peut être dit à des parents, des proches et à leur environnement social (amis, école, voisins...). Les résultats confirment le besoin manifeste de renforcer les pratiques professionnelles autour des familles, et notamment des enfants, grands absents dans nos dispositifs d’accompagnement français.
Intime conviction, conflit psychique et liens intersubjectifs dans la famille
Authors: Grihom Marie-José , Ducousso-Lacaze Alain , Leturmy Laurence 
Published: February 2016

Les auteurs cherchent à rendre compte d’un résultat particulier obtenu dans le cadre d’une recherche sur l’implication subjective des magistrats dans la construction de leur intime conviction. Comment comprendre la relation entre l’intime conviction de culpabilité et la prise en compte des liens familiaux et intersubjectifs ? La méthode de recherche est centrée sur l’étude de la narrativité. La situation judiciaire proposée aux magistrats est une plainte pour inceste. L’intime conviction abordée dans ses fondements juridiques est envisagée du point de vue du travail psychique qu’elle est susceptible de mobiliser. L’analyse des identités narratives permet de distinguer trois rapports au « conflit psychique induit ». Les magistrats qui prennent en compte les liens intersubjectifs seraient ceux qui appliquent le travail du doute d’une part, qui cherchent à penser la subjectivité de l’auteur et la relation entre cet homme et sa fille d’autre part.
Les aléas du désir à la ménopause ou les « névroses de ménage »
Authors: Cloës Claude 
Published: February 2016

Ce travail traite des effets psychiques de la ménopause chez certaines femmes. L’auteur stipule que, bien qu’il engage principalement le corps, ce phénomène constitue une période propice à l’éclosion de diverses formes d’expression psychopathologique. Le sujet, abordé à partir d’une réflexion théorique soutenue par deux vignettes cliniques, a pour ambition de faire saisir que l’entrée de certaines femmes dans la ménopause peut induire un effondrement dépressif sous-tendu par une plainte singulière, celle de « ne plus pouvoir faire le ménage comme avant ». Cette plainte renverrait ces femmes à la question du désir dans leur ménage, entendons « dans leur couple », et interrogerait les figures du narcissisme, du maternel, du féminin, etc. Ainsi, la ménopause dévoile les enjeux inconscients à l’œuvre dans la relation conjugale qui nécessitent d’être élaborés dans le transfert afin d’être sublimés.
Influence des postures épistémologiques sur l’action professorale : les phases de la Lune au cycle 3
Authors: Boivin-Delpieu Géraldine , Bécu-Robinault Karine 
Published: February 2016

Depuis 2000, la France préconise une approche basée sur des méthodes d’enquête. Elles ont été proposées dans les programmes officiels de l’école primaire, afin de tenir compte des approches et des hypothèses scientifiques concernant l’apprentissage des sciences. Cette recherche en cours vise à identifier les déterminants de l’action professorale dans le contexte des démarches d’investigation et plus particulièrement à étudier l’influence des postures épistémologiques. Il s’agit de deux études de cas concernant des séquences sur les phases de la Lune au cycle 3. Nous mettons en évidence certains déterminants des choix opérés lors de l’élaboration et de la mise en œuvre de cette démarche. Nous montrons en quoi les instructions officielles guident les choix didactiques des enseignants mais aussi comment leurs décisions dépendent de facteurs dont les fondements sont d’ordre épistémologique.
Differential T Cell Cytokine Receptivity and Not Signal Quality Distinguishes IL-6 and IL-10 Signaling during Th17 Differentiation
Authors: Jones Lindsay L. , Alli Rajshekhar , Li Bofeng , Geiger Terrence L. 
Published: February 2016

Abstract
How a large number of cytokines differentially signal through a small number of signal transduction pathways is not well resolved. This is particularly true for IL-6 and IL-10, which act primarily through STAT3 yet induce dissimilar transcriptional programs leading alternatively to pro- and anti-inflammatory effects. Kinetic differences in signaling, sustained to IL-10 and transient to IL-6, are critical to this in macrophages. T cells are also key targets of IL-6 and IL-10, yet how differential signaling in these cells leads to divergent cellular fates is unclear. We show that, unlike for macrophages, signal duration cannot explain the distinct effects of these cytokines in T cells. Rather, naive, activated, activated-rested, and memory CD4+ T cells differentially express IL-6 and IL-10 receptors in an activation state–dependent manner, and this impacts downstream cytokine effects. We show a dominant role for STAT3 in IL-6–mediated Th17 subset maturation. IL-10 cannot support Th17 differentiation because of insufficient cytokine receptivity rather than signal quality. Enforced expression of IL-10Rα on naive T cells permits an IL-10–generated STAT3 signal equivalent to that of IL-6 and equally capable of promoting Th17 formation. Similarly, naive T cell IL-10Rα expression also allows IL-10 to mimic the effects of IL-6 on both Th1/Th2 skewing and Tfh cell differentiation. Our results demonstrate a key role for the regulation of receptor expression rather than signal quality or duration in differentiating the functional outcomes of IL-6 and IL-10 signaling, and identify distinct signaling properties of these cytokines in T cells compared with myeloid cells.
CD4 T Cell Help via B Cells Is Required for Lymphopenia-Induced CD8 T Cell Proliferation
Authors: Ayasoufi Katayoun , Fan Ran , Fairchild Robert L. , Valujskikh Anna 
Published: February 2016

Abstract
Ab-mediated lymphoablation is commonly used in solid organ and hematopoietic cell transplantation. However, these strategies fail to control pathogenic memory T cells efficiently and to improve long-term transplant outcomes significantly. Understanding the mechanisms of T cell reconstitution is critical for enhancing the efficacy of Ab-mediated depletion in sensitized recipients. Using a murine analog of anti-thymocyte globulin (mATG) in a mouse model of cardiac transplantation, we previously showed that peritransplant lymphocyte depletion induces rapid memory T cell proliferation and only modestly prolongs allograft survival. We now report that T cell repertoire following depletion is dominated by memory CD4 T cells. Additional depletion of these residual CD4 T cells severely impairs the recovery of memory CD8 T cells after mATG treatment. The CD4 T cell help during CD8 T cell recovery depends on the presence of B cells expressing CD40 and intact CD40/CD154 interactions. The requirement for CD4 T cell help is not limited to the use of mATG in heart allograft recipients, and it is observed in nontransplanted mice and after CD8 T cell depletion with mAb instead of mATG. Most importantly, limiting helper signals increases the efficacy of mATG in controlling memory T cell expansion and significantly extends heart allograft survival in sensitized recipients. Our findings uncover the novel role for helper memory CD4 T cells during homeostatic CD8 T cell proliferation and open new avenues for optimizing lymphoablative therapies in allosensitized patients.
A juridificação de conflitos políticos no direito internacional público contemporâneo: uma leitura política da paz pelo direito de Hans Kelsen a partir do pensamento político de Claude Lefort
Authors: Capella Giannattasio Arthur Roberto 
Published: February 2016

A partir da proposição de um debate interdisciplinar entre o pensamento jurídico de Hans KELSEN e o pensamento político de Claude LEFORT, este texto constrói uma interpretação política da proposta kelseniana em torno das discussões do pós-Segunda Guerra Mundial sobre a Paz nas relações internacionais.
Inserto no debate jurídico-político do pós-Segunda Guerra Mundial acerca de uma nova estrutura institucional para o Direito Internacional Público, o Projeto da Paz pelo Direito de Hans KELSEN pode ser compreendido politicamente pois (i) utiliza uma técnica jurídica de produção da Política – esvaziamento normativo do Direito, e (ii) se trata de uma opção consciente por um modelo jurídico-político de direitificação de conflitos distinto do modelo estatal – rejeição do Federalismo Mundial.
Hans KELSEN percebera a suposta fragilidade do Direito Internacional Público e a revelara como sua virtude: garantir relações internacionais não-armadas, não mediante o uso da força centralizada por uma única autoridade, mas por um experimentalismo contínuo de sua arquitetura institucional para reconstituir arranjos jurídicos sensíveis à importância da manutenção e do estímulo reiterado das liberdades política, jurídica, econômica e cultural de cada povo.
An Introduction to Action Semantics
Authors: Mosses Peter D. 
Published: February 2016

<p>Formal semantics is a topic of major importance in the study of programming languages. Its applications include documenting language design, establishing standards for implementations, reasoning about programs, and generating compilers.</p><p> </p><p>These notes introduce <em>action semantics</em>, a recently-developed framework for formal semantics. The primary aim of action semantics is to allow <em>useful</em> semantic descriptions of <em>realistic</em> programming languages.</p>
Impact of gate dielectrics and oxygen annealing on tin-oxide thin-film transistors
Authors: Zhong Chia-Wen , Lin Horng-Chih , Tsai Jung-Ruey , Liu Kou-Chen , Huang Tiao-Yuan 
Published: February 2016

Abstract
In this work, we study the impact of gate dielectrics on the characteristics of bottom-gated tin-oxide thin-film transistors annealed in an oxygen ambience at 300 °C for various periods. SiO2, HfO2, and Al2O3 are employed as the gate dielectric in the test devices. The results show that the devices will start exhibiting p-type conduction behavior as the annealing reaches a specific time period which is closely related to the underlying gate dielectric, and the device characteristics can be improved as the annealing proceeds further. Nonetheless, a prolonged annealing may cause degradation of the devices. High hole mobility (3.33 cm2 V−1 s−1), low threshold voltage (1.95 V), and excellent I
on/I
off ratio (∼104) are achieved on SnO TFTs with a SiO2 gate dielectric after an annealing of 30 min.
A sociohydrological model for smallholder farmers in Maharashtra, India
Authors: Pande Saket , Savenije Hubert H. G. 
Published: February 2016

AbstractWe present a sociohydrological model that can help us to better understand the system dynamics of a smallholder farmer. It couples the dynamics of the six main assets of a typical smallholder farmer: water storage capacity, capital, livestock, soil fertility, grazing access, and labor. The hydroclimatic variability, which is a main driver and source of uncertainty of the smallholder system, is accounted for at subannual scale. The model incorporates rule‐based adaptation mechanisms of smallholders (for example, adjusting expenditures on food and fertilizers and selling livestocks) when farmers face adverse sociohydrological conditions, such as low annual rainfall, occurrence of dry spells, or variability of input or commodity prices. We have applied the model to analyze the sociohydrology of a cash crop producing smallholder in Maharashtra, India, in a semisynthetic case study setting. Of late, this region has witnessed many suicides of farmers who could not extricate themselves out of the debt trap. These farmers lacked irrigation and were susceptible to fluctuating commodity prices and climatic variability. We studied the sensitivity of a smallholder's capital, an indicator of smallholder well‐being, to two types of cash crops (cotton and sugarcane), water storage capacity, availability of irrigation, initial capital that a smallholder starts with, prevalent wage rates, and access to grazing. We found that (i) smallholders with low water storage capacities and no irrigation are most susceptible to distress, (ii) a smallholder's well‐being is low at low wage rates, (iii) wage rate is more important than absolution of debt, (iv) well‐being is sensitive to water storage capacity up to a certain level, and (v) well‐being increases with increasing area available for livestock grazing. Our results indicate that government intervention to absolve the debt of farmers or to invest in local storage to buffer rainfall variability may not be enough. In addition, alternative sources of income may need to be provided, for instance by ensuring minimum wages or by providing more access to grazing areas.
Long‐term outcomes of thrombotic microangiopathy treated with plasma exchange: A systematic review
Authors: Thejeel Bashiar , Garg Amit X. , Clark William F. , Liu Aiden R. , Iansavichus Arthur V. , Hildebrand Ainslie M. 
Published: February 2016

With the adoption of plasma exchange as standard treatment for thrombotic microangiopathy (TMA), more patients are surviving and long‐term outcomes have greater relevance. We conducted a systematic review to synthesize and evaluate the quality of evidence on long‐term outcomes of TMA among adults treated with plasma exchange and to identify factors that may be associated with a worse long‐term prognosis. We searched databases from 1980 to 2013 for eligible articles published in any language. We included studies that reported outcomes in at least ten adults with a history of TMA treated with plasma exchange and at least 6 months of follow‐up. We abstracted data in duplicate and assessed the methodological quality of each study using an assessment tool developed based on recommended validity criteria. We screened 6672 articles, reviewed 213, and included 34 studies totaling 1182 patients (study median [range], 24 [10–118]). The mean (or median) follow‐up ranged from 6 months to 13 years. The cumulative incidence of relapse and mortality was highly variable and ranged from 3 to 84 and 0 to 61%, respectively. The incidence of other outcomes across 10 studies also varied (outcomes included hypertension, kidney disease, preeclampsia, stroke, seizure, severe cognitive impairment, and depression); in three other studies, long‐term neurocognitive function and health‐related quality of life were significantly lower than in the general population. Patients who survive an episode of TMA may be susceptible to long‐term vascular complications, but the magnitude of this risk and how to mitigate it remains unclear. Am. J. Hematol. 91:623–630, 2016. © 2016 Wiley Periodicals, Inc.
ChemInform Abstract: PHOSPHONSAEUREN UND PHOSPHONSAEUREESTER 21. MITT. DIMERISIERUNG UND DIELS‐ALDER‐RK. VON DIALKYL‐1‐(1,3‐BUTADIENYL)‐PHOSPHONATEN
Authors: GRIFFIN C. E. , DANIEWSKI W. M. 
Published: February 2016

Abstract1‐(1,3‐Butadienyl)‐phosphonate (Ia), (Ib) geben beim Erhitzen die Dimeren (IIa), (IIb), die mit 1 Mol N‐Brom‐succinimid zu (III), mit mehr N‐Bromsuccinimid zu (IV) dehydriert werden.
ChemInform Abstract: ELEKTROCHEMISCHE SYNTH. VON BIS‐(2‐HYDROXY‐AETHYL)‐QUECKSILBER
Authors: ESIKOVA I. A. , TEMKIN O. N. , TOMILOV A. P. , PAVLIKOVA G. P. , FLID R. M. 
Published: February 2016

AbstractBei der Elektrolyse der Hg‐Verbindung (I) in wäßriger NaOH‐Lösung entsteht Bis‐[2‐hydroxy‐äthyl]‐Hg (II).
ChemInform Abstract: ZUSAMMENSETZUNG UND STABILITAET VON NEODYMAETHYLENDIAMINACETATEN
Authors: SEVOST'JANOVA N. I. , MARTYNENKO L. I. , SPICYN V. I. 
Published: February 2016

AbstractMit Hilfe von hochaufgelösten Elektronenabsorptionsspektren (sichtbarer Bereich) wird die Zusammensetzung der Komplexe (I) und (II) bestimmt.
ChemInform Abstract: CHEMISMUS DER RK. VON NEODYM UND ERBIUM MIT MONO‐ UND DISACCHARIDEN
Authors: POLUEKTOV N. S. , EFRJUSINA N. P. 
Published: February 2016

AbstractIm neutralen und schwachbasischen Medium bilden sich zwischen NdOH2+ bzw. ErOH2+ und Arabinose, Galaktose bzw. Fructose unter Verdrängung von 4 Protonen Neutralkomplexe von der Zusammensetzung Metall:Monosaccharid = 2:1.
ChemInform Abstract: UEBERTRAGUNG DER RESULTATE DES SYST. TRIMETHYLCHLORSILAN‐MAGNESIUM‐HEXAMETHYLPHOSPHORTRIAMID AUF TRIMETHYLCHLORGERMAN
Authors: DUNOGUES JACQUES , CALAS RAYMOND , DUFFAUT NORBERT 
Published: February 2016

AbstractDas Silan (I) reagiert mit dem German (II) in Hexamethylphosphortriamid in Gegenwart von Mg zum Germylsilan (III) (47% Ausbeute).
ChemInform Abstract: RACEMISIERUNG VON OPTISCH AKTIVEN FERROCENDERIVATEN
Authors: BAUER K. , FALK H. , LEHNER H. , SCHLOEGL K. , WAGNER U. 
Published: February 2016

AbstractDie Racemisierung des Ferrocens (I) verläuft nicht nur in Gegenwart eines Friedel‐Krafts‐Katalysators, sondern unterliegt einer allgemeinen Säurekata1yse, daher konnte die Racemisierung nicht nur mit AlCl3 sondern auch mit FeCl3, dem Diäthyläther‐Addukt von BF3, H3PO4 und HClO4 erreicht werden.
ChemInform Abstract: ASYMMETRISCHE LITHIIERUNG VON (S)‐1‐FERROCENYLMETHYL‐2‐METHYL‐PIPERIDIN UND AEHNLICHEN VERBINDUNGEN
Authors: GOKEL G. , HOFFMANN P. , KLEIMANN H. , KLUSACEK H. , MARQUARDING D. , UGI I. 
Published: February 2016

AbstractIm Zusammenhang mit Untersuchungen über die Lithiierung von Ferrocen‐ Derivaten wurde aus dem Mannichderivat (Ia) über das Ammoniumsalz (Ib) und das Azid (Ic) das Amin (Id) hergestellt und in die Antipoden getrennt.
ChemInform Abstract: RK. VON METALLEN IN NIEDRIGEN OX.‐KOMPLEXEN MIT FLUORKOHLENWASSERSTOFFEN 12. MITT. RK. VON FLUOROLEFINEN MIT NICKEL(C)‐KOMPLEXEN
Authors: CUNDY C. S. , GREEN M. , STONE F. G. A. 
Published: February 2016

AbstractDer Komplex (I) reagierte mit Perfluorpropen (II) zu dem Komplex (III) (Ausbeute 35%), der mit den Phosphinen (IV) die Komplexe (V) (71 bzw. 99%) bildete.
ChemInform Abstract: INTRAMOLEKULARER AUSTAUSCH UND ′THERMISCHE′ ENTKUPPLUNG IN B3H8(‐)‐VERBINDUNGEN
Authors: BEALL HERBERT , BUSHWELLER C. HACKETT , DEWKETT W. J. , GRACE MICHAEL 
Published: February 2016

AbstractDer intramolekulare Austausch und die "thermische" Entkupplung in den Verbindungen (I)‐(III) wird mit Hilfe des 1H‐NMR‐Spektrums untersucht.
ChemInform Abstract: ROTATION DER OLEFINE IN OLEFIN‐PLATIN(II)‐KOMPLEXEN 2. MITT.
Authors: HOLLOWAY C. E. , HULLEY G. , JOHNSON B. F. G. , LEWIS J. 
Published: February 2016

AbstractDer Komplex (I) wurde mit HCl in die Säure (II) und dann mit Äthylen (III) in den Komplex (IV) übergeführt.
ChemInform Abstract: STRUKTUR, ALKYLIERUNG UND MAKROCYCLISCHE DERIVATE VON BICYCLO(2,2,1)HEPTADIEN‐(2,5)‐ADDUKTEN VON METALL‐DITHIENEN
Authors: SCHRAUZER G. N. , HO R. K. Y. , MURILLO R. P. 
Published: February 2016

AbstractDas Ni‐Dithien (I) reagiert mit Norbornadien (II) zum Ni‐Komplex (III), der mit Methyljodid (IV) bzw. mit a,a′‐Dibrom‐o‐xylol (VII) zu den 6fach koordinierten Ni‐Komplexen (V) bzw. (VIII) führt.
ChemInform Abstract: BERECHNUNG DER SPANNUNGSENERGIE DURCH MO‐THEORIEN
Authors: BAIRD N. C. 
Published: February 2016

AbstractMittels der MINDO‐MO‐Methode werden die Ringspannungsenergien der C3 ‐ C5‐Cycloalkane, von Bicyclo‐ und Spiroalkanen und z.B. Cuban bestimmt.
ChemInform Abstract: KINETISCHE UNTERSUCHUNG DER BLDG. VON MEISENHEIMER‐KOMPLEXEN IN METHANOL‐DIMETHYLSULFOXID‐GEMISCHEN 1. MITT. 4‐SUBSTITUIERTE 2,6‐DINITRO‐ANISOLE
Authors: TERRIER FRANCOIS , MILLOT FRANCOIS 
Published: February 2016

AbstractBei der Reaktion der Dinitroanisole (I) mit CH3OH‐DMSO‐Gemischen verschiedener Zusammensetzung (10 : 90 bis 25 : 75) entstehen zunächst die sehr unbeständigen unsymmetrischen Komplexe (II), deren Lebensdauer von der Lösungsmittelzusammensetzung und vom Substituenten Rabhängt und deren Absorptionsspektren erhalten wurden.
ChemInform Abstract: RED. VON ALPHA‐HALOGENCARBONSAEUREESTERN DURCH NUCLEOPHILE SCHWEFELVERBINDUNGEN 1. MITT. EINWIRKUNG NUCLEOPHILER SCHWEFELVERBINDUNGEN AUF 2‐CHLOR‐ UND 2‐BROM‐2‐METHYL‐BUTIN‐(3)‐SAEURE‐AETHYLESTER
Authors: VERNY MICHEL 
Published: February 2016

AbstractBei der Einwirkung der Na‐thiolate (I) auf die Ester (II) können neben den normalen Substitutionsprodukten (III) der Ester (IV), das Additionsprodukt aus (IV) und (II) (V) und das Isomere des letzteren (VI) entstehen.