Search results for "Wolff"

Synthesis of (+)-podocarp-8(14)-en-13-one and methyl-(+)-13-oxo-podocarp-8(14)-en-18-oate from abietic acid

1985

Abstract An efficient method for the preparation of (+)-podocarp-8(14)-en-13-one 6 and methyl-(+)-13-oxo-podocarp-8(14)-en-18-oate 8 from abietic acid is described.

Response to methimazole in Graves' disease

1995

Summary OBJECTIVE A variety of regimens continue to be used In the treatment of Graves' disease with antithyrold drugs. We have lnvestigated the factors which determine the initial response to methimazole (time until euthyroidism Is achieved) In Graves' disease. PATIENTS Five hundred and nine patients with Graves' disease in different European countries with normal and subnormal iodine supply. Patients were randomized to treatment with either 10 or 40mg of methimazole per day for one year, with levothyroxine supplementation as required to maintain euthyroidism. Investigations were carried out before treatment and at 3 and 6 weeks and 3, 6, 9 and 12 months. MEASUREMENTS Response was assessed…

Nonlinear dissipation phenomena in optomechanics

2016

Yksikään kvanttisysteemi ei voi olla täysin eristetty ympäristöstään, mikä johtaa informaation välittymiseen systeemin ja ympäristön välillä. Optomekaniikassa, missä tyypillinen tutkittava systeemi on peileistä koostuva optinen kaviteetti yhdistettynä mekaaniseen värähtelijään, systeemin ja ympäristön lineaarisesta kytkennästä johtuvat dissipaatioilmiöt ovat hyvin tunnettuja. Epälineaarisia ilmiöitä ei kuitenkaan ymmärretä yhtä laajasti. Tutkin epälineaarista kytkentää kaviteetin ja lämpökylvyn välillä ja havainnollistan tästä kytkennästä johtuvia ilmiöitä kuten epälineaarista dissipaatiota. Esitän myös optisen kaviteetin epälineaarisen dissipaation oikeuttavan mallin, missä optinen kavitee…

Synthesis and properties of a photoaffinity labeling reagent for protoporphyrinogen oxidases, the target enzymes of diphenyl ether herbicides

1994

A diazoketone 3 has been synthesized in two steps from acifluorfen 1, a diphenyl ether herbicide. Like the parent compound 1, the diazoketone 3 is toxic to plant cells and inhibits protoporphyrinogen oxidase, the molecular target of diphenyl ether herbicides. On photolysis of 3 in methanol, the generated carbene mainly undergoes the Wolff rearrangement to a ketene which further adds methanol, but many other products are observed. A tritiated derivative of 3 has been prepared which is suitable for photoaffinity labeling experiments.

Wolff-Parkinson-White syndrome associated with Brugada syndrome.

2009

Asymptomatic ventricular pre-excitation in children.

2009

ASYMPTOMATIC VENTRICULAR PREEXCITATION IN CHILDREN OBJECTIVE: This retrospective study was planned for a good risk assessment of asymptomatic patients affected by ventricular pre-excitation. METHODS: From 1985 to 2007, 124 patients with an atrioventricular pathway (electrocardiographic signs of ventricular pre-excitation) were admitted to our cardiology division. The average age was 7 years (range 1 month to 18 years). The mean follow-up period in the whole population of patients was 4.2 years (range 1-13 years). Four patients were lost during the follow-up. During this period, all patients remained in good health. In all of them, we performed a Holter evaluation every year. An intermittent…

Quatre figures de la tératologie scientifique : Etienne et Isidore Geoffroy Saint-Hilaire, Camille Dareste et Etienne Wolff

2022

À partir de l'histoire de la tératologie ou "sciences des monstres", un ouvrage qui propose une contribution originale, appuyée sur des exemples frappants, à l’étude des rapports entre théorie et observation en sciences et enrichit par là un questionnement épistémologique qui reste d’une profonde actualité.Le regard sur le corps jugé monstrueux s’est constitué au travers des travaux de quatre grandes figures de la tératologie française : les Geoffroy Saint-Hilaire, Camille Dareste et Etienne Wolff. On y voit comment le monstre jugé aberrant est rentré dans l’ordre du vivant, non pas comme dépendance de la forme ordinaire mais comme organisation originale à part entière. Ce regard sur le cor…

L’esilio al femminile. Neue Frauen oltreoceano

2020

The essay offers an overview of the experience of exile of a group of German and Austrian female writers (Adrienne Thomas, Irmgard Keun, Victoria Wolff, Gina Kaus and Vicki Baum), who had been a symbol of the so–called Neue Frau in the Twenties and emigrated after the rise of National Socialism. From an autobiographical point of view the reconstruction of their experience of exile, which sometimes include common stations (Vienna, Paris, the crossing of the Atlantic, Hollywood and, in some cases, the return to Europe), allows to compare their careers and to find out breaks and possible lines of continuity in the process of their literary affirmation and social emancipation which had begun in…

Towards a new conception of metaphysics: Lambert’s criticism on Wolff’s mathematical method

2017

This paper discusses Lambert’s criticism of Wolff’s mathematical method. I take this criticism to consist of two main aspects. Lambert tries on the one hand to revise Wolff’s idea of fundamental concepts by providing what he takes to be a more profound theory of concepts. On the other hand, Lambert introduces postulates that regulate the connection between fundamental concepts and account for their application to experience. Both transformations allow Lambert to put forward a novel approach to metaphysics which is essentially oriented towards experience.

Risk assessment in ginecology and obstetrics in Sicily: an approach based on Wolff's Criteria

2013

Objectives To apply Wolff’s Criteria to hospital discharge records (HDR) in order to detect adverse events worthy of further study. Methods Gynecology and Obstetrics Units of three Sicilian hospitals were considered and HDR regarding ordinary and day hospital admissions in 2008 were collected. A matched case-control study was designed, by random selection of 10 controls at maximum for each case. Matching was performed on the variables age and speciality of admission (gynecology or obstetrics). Results Out of a total of 7011 HDR examined, 114 cases were identified with Wolff’s Criteria. Multivariate analysis confirmed a statistically significant association with the origin of admission, diag…