Artículos de revistas: "Milwaukee Eschweiler and Eschweiler"

1

Anheuser, Petra. "Führungswechsel in Eschweiler". Uro-News 28, n.º 4 (abril de 2024): 64–65. http://dx.doi.org/10.1007/s00092-024-6280-7.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Rahal, Saïd y Leïla Badache. "An anomalous Eschweiler-Clarke reaction". Tetrahedron Letters 32, n.º 31 (julio de 1991): 3847–48. http://dx.doi.org/10.1016/s0040-4039(00)79393-2.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Steffens, J. "12. Kinderurologisches Symposium Eschweiler 25.?26.4.2003". Der Urologe A 42, n.º 8 (1 de agosto de 2003): 1101–4. http://dx.doi.org/10.1007/s00120-003-0399-z.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Arustamyan, Zh S., R. E. Margaryan, A. A. Aghekyan, G. A. Panosyan, G. S. Mkrtchyan y R. E. Muradyan. "Synthesis and antiarrhythmic activity of a new benzodioxolsubstituted 4-spirocycloalkan(tetrahydropyran)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines". Журнал органической химии 59, n.º 11 (15 de diciembre de 2023): 1446–54. http://dx.doi.org/10.31857/s051474922311006x.

Texto completo

Resumen

By the reaction of 1-(3,4-dimethoxy)phenylcycloalkanmethan- and 4-(3,4-dimethoxyphenyl)tetrahydropyran-4-methanamines with benzo[ d ][1,3]dioxol-5-carbonyl chloride corresponding N -substituted benzo[ d ][1,3]dioxol-5-carboxamides were synthesized. Cyclization of the latter with phosphorus oxychloride gave dihydroisoquinolines reduced with sodium borohydride to the corresponding spiro-substituted tetrahydroisoquinolines, whose methylation according to Eschweiler-Clark reaction gave N -methyl derivatives. By condensation abovementioned amines with benzo[ d ][1,3]dioxol-5-carbaldehyde Schiff bases were synthesized. The reduction of the latter with sodium borohydride gave the corresponding secondary amines - non-cyclic analogues of tetrahydroisoquinolines, which undergo cyclization under the conditions of the Eschweiler-Clark reaction to form N -benzodioxolmethyl-substituted tetrahydroisoquinolines.

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Dahlen, Nicole. "Die Eigenfertigung als Wachstumstreiber". VDI-Z 162, n.º 05-06 (2020): 68–70. http://dx.doi.org/10.37544/0042-1766-2020-05-06-68.

Texto completo

Resumen

Vom Wälzlager-Händler zum Hersteller: Die Firma Rodriguez hat in den letzten 35 Jahren eine deutliche Wandlung vollzogen. Zum Standort Eschweiler gehört mittlerweile ein umfassender (Werkzeug-)Maschinenpark für die Bereiche Lineartechnik und Präzisionslager. Der Anteil der Eigenfertigung liegt bei circa 45 %. Alle Prozessschritte lassen sich im eigenen Unternehmen abdecken – von der Entwicklung über die Fertigung bis hin zur Montage und Qualitätssicherung.

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Schneiders, Julia. "Leichte Lineareinheit mit Antrieb". Konstruktion 70, S1 (2018): 44–45. http://dx.doi.org/10.37544/0720-5953-2018-s1-44.

Texto completo

Resumen

Mit der zunehmenden Automatisierung industrieller Produktions- und Montageabläufe steigt der Bedarf an angetriebenen Lineareinheiten. Zudem sind Anlagen mit hoher Leistung und Dynamik bei gleichzeitig möglichst geringem Energieverbrauch gefragt. Um diese Anforderungen zu erfüllen, werden kompakte und leichte Maschinenkomponenten benötigt, die dennoch höchste Ansprüche an Steifigkeit und Präzision erfüllen. Mit der angetriebenen Lineareinheit RLA bedient der Eschweiler Antriebsspezialist Rodriguez diese Nachfrage.

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Woldt, W., E. Bretschneider y T. Roth. "Modernization of the ESW Rhrenwerke GmbH tube mill in Eschweiler". Journal of Materials Processing Technology 34, n.º 1-4 (septiembre de 1992): 319–23. http://dx.doi.org/10.1016/0924-0136(92)90123-a.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Dahlen, Nicole. "Klein und leistungsfähig". Konstruktion 72, n.º 05-06 (2020): 30–33. http://dx.doi.org/10.37544/0720-5953-2020-05-06-30.

Texto completo

Resumen

Möglichst wenig Bauraum und Gewicht: Diese Vorgabe kannte man lange Zeit vor allem aus der Robotik und der Halbleitertechnik. Inzwischen gibt es jedoch auch in vielen anderen Branchen einen Trend zur Miniaturisierung. Extrem klein und leicht sollen die Produkte und Lösungen ausfallen, aber dabei maximal leistungsfähig sein. Das ist jedoch nur dann möglich, wenn sich die verbauten Komponenten ebenfalls „klein machen“. Der Eschweiler Antriebsspezialist Rodriguez hat quer über sein Sortiment hinweg Miniatur-Ausführungen im Programm.

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Rombach, Ralf. "Erstnachweis der Zikade Jassargus obtusivalvis (Kirschbaum, 1896) (Homoptera, Auchenorrhyncha, Cicadellidae) für Nordrhein-Westfalen (Nordeifel, Kreis Euskirchen)". Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens 148 (1 de enero de 1995): 118–19. http://dx.doi.org/10.21248/decheniana.v148.4187.

Texto completo

Resumen

Im Rahmen eines Forschungsvorhabens des Landes Nordrhein-Westfalen zur Erforschung der Auswirkungen von Schafbeweidung auf Flora und Fauna von Kalkmagerrasen (Enzian-Schillergrasrasen - Gentiano-Koelerietum) wurden in den Jahren 1990 und 1991 entomofaunistische Untersuchungen an verschiedenen Insektengruppen des NSG Eschweiler Tal und Kalkkuppen bei Bad Münstereifel durchgeführt (Schumacher et al. im Druck). Eine der berücksichtigten Gruppen waren die Zikaden (Homoptera, Auchenorrhyncha), da sie als Primärkonsumenten hinsichtlich Abundanzen, Artenspektrum und ökologischer Einnischung auch für die Bioindikation von größerer Bedeutung sind (vgl. Müller 1978, Hildebrandt 1990).

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Alder, Roger W., David Colclough y Rodney W. Mowlam. "Fragmentation during the formic acid/formaldehyde (eschweiler-clarke) methylation of polyamines". Tetrahedron Letters 32, n.º 52 (diciembre de 1991): 7755–58. http://dx.doi.org/10.1016/0040-4039(91)80583-r.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Mehring, Reinhard. "Thomas Marschler: Karl Eschweiler (1886-1936). Theologische Erkenntnislehre und nationalsozialistische Ideologie". Zeitschrift für Religions- und Geistesgeschichte 64, n.º 1 (2012): 101–3. http://dx.doi.org/10.1163/004434412x13397477060623.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Rosenau, Thomas, Antje Potthast, J�rgen R�hrling, Andreas Hofinger, Herbert Sixta y Paul Kosma. "A SOLVENT-FREE AND FORMALIN-FREE ESCHWEILER-CLARKE METHYLATION FOR AMINES". Synthetic Communications 32, n.º 3 (2002): 457–66. http://dx.doi.org/10.1081/scc-120002131.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Vickery, Jon. "Searching for Josef Pieper". Theological Studies 66, n.º 3 (septiembre de 2005): 622–37. http://dx.doi.org/10.1177/004056390506600307.

Texto completo

Resumen

[In some recent prominent studies, Josef Pieper has merited only brief attention. He is presented as one who accommodated Roman Catholic theology and philosophy with National Socialism in the early 1930s. Alongside such thinkers as Michael Schmaus and Karl Eschweiler, Pieper's name appears as evidence for the Catholic pursuit of rapprochement with the Nazi State. The writings of Pieper, however, contain considerable evidence to maintain a contrary reading of his involvement with the National Socialists. He may in fact be understood as a man who said no to the spirit of his age.]

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Fache, Fabienne, Laurent Jacquot y Marc Lemaire. "Extension of the eschweiler-clarke procedure to the N-alkylation of amides". Tetrahedron Letters 35, n.º 20 (mayo de 1994): 3313–14. http://dx.doi.org/10.1016/s0040-4039(00)76894-8.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Hu, Jian, Fang Wen Yang y Ming Gang Huang. "Synthesis of N,N,N-Trimethyl-1-Adamantyl Quaternary Ammonium Hydroxide and Technology Development". Advanced Materials Research 391-392 (diciembre de 2011): 1159–63. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.1159.

Texto completo

Resumen

N,N-dimethyl-1-adamantane was synthesized from amantadine through Eschweiler-Clarke reaction, The optimal ratio of amantadine, formic acid and formaldehyde was 1:5:4, and the reaction time was 18 h at 98°C.The product yield was 93.4% on these conditions. N,N,N-trimethyl-1-adamantyl quaternary ammonium salt then was synthesized, the product yield was 90.5%, succeeding eco-friendly procedure technology was developed. N,N,N-trimethyl-1-adamantyl quaternary ammonium hydroxide was obtained finally, target product yield was 84.3%.The structure of compounds were characterized by1H NMR,13C NMR, MS and GC-MS.

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Schmidt, Jürgen W. "Wolfgang Klein: Aachener Landsturmmänner. Landsturmbataillone Aachen, Deutz, Düren, Eschweiler, Jülich, Monschau und Rheydt". Das Historisch-Politische Buch (HPB): Volume 67, Issue 3 67, n.º 3 (1 de septiembre de 2019): 404. http://dx.doi.org/10.3790/hpb.67.3.404a.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Torchy, Séverine y Didier Barbry. "N-alkylation of amines under microwave irradiation: modified Eschweiler-Clarke reaction". Journal of Chemical Research 2001, n.º 7 (1 de julio de 2001): 292–93. http://dx.doi.org/10.3184/030823401103169810.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Torchy, Severine y Didier Barbry. "ChemInform Abstract: N-Alkylation of Amines under Microwave Irradiation: Modified Eschweiler-Clarke Reaction." ChemInform 33, n.º 2 (23 de mayo de 2010): no. http://dx.doi.org/10.1002/chin.200202174.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Rosenau, Thomas, Antje Potthast, Juergen Roehrling, Andreas Hofinger, Herbert Sixta y Paul Kosma. "ChemInform Abstract: A Solvent-Free and Formalin-Free Eschweiler-Clarke Methylation for Amines." ChemInform 33, n.º 26 (21 de mayo de 2010): no. http://dx.doi.org/10.1002/chin.200226056.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

ALDER, R. W., D. COLCLOUGH y R. W. MOWLAM. "ChemInform Abstract: Fragmentation During the Formic Acid/Formaldehyde (Eschweiler-Clarke) Methylation of Polyamines." ChemInform 23, n.º 31 (21 de agosto de 2010): no. http://dx.doi.org/10.1002/chin.199231132.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Dine, G., Y. Renn y D. Fritz. "Évaluation de l'appareil Eschweiler Système 3000 au sein d'un service d'hématologie clinique et biologique". RBM-News 17, n.º 7 (enero de 1995): 247–50. http://dx.doi.org/10.1016/0222-0776(96)89518-6.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

FACHE, F., L. JACQUOT y M. LEMAIRE. "ChemInform Abstract: Extension of the Eschweiler-Clarke Procedure to the N-Alkylation of Amides." ChemInform 25, n.º 38 (19 de agosto de 2010): no. http://dx.doi.org/10.1002/chin.199438089.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Pardey, Andreas. "Beiträge zur Weichtierfauna (Mollusca: Gastropoda et Bivalvia) der Eifel und Voreifel I: Die Weichtiere des Fauna-Flora-Habitat und Naturschutzgebietes „Eschweiler Tal und Kalkkuppen“ (Bad Münstereifel, Kreis Euskirchen)". Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens 173 (1 de enero de 2020): 124–45. http://dx.doi.org/10.21248/decheniana.v173.4986.

Texto completo

Resumen

In den Jahren 2012 bis 2018 wurden im Fauna-Flora-Habitat-Gebiet „Eschweiler Tal und Kalkkuppen“ (Stadt Bad Münstereifel, Kreis Euskirchen, Nordrhein-Westfalen) die Weichtiere (Schnecken und Muscheln) erfasst. Der Untersuchungsschwerpunkt lag auf den Laubmischwäldern, Kalkmagerrasen sowie Kalkfelsen, Gewässern und Nasswiesen. Von den 72 im Gebiet festgestellten Arten werden 18 in den Roten Listen Deutschlands und Nordrhein-Westfalens geführt. Besonders bemerkenswert ist der Nachweis der in der Nordeifel bisher sehr selten gefundenen Maskenschnecke (Isognomostoma isognomostomos) sowie der in NRW vom Aussterben bedrohten Quendelschnecke (Candidula unifasciata). Die Weichtiergemeinschaften der verschiedenen Lebensraumtypen entsprechen in ihrer Artenzusammensetzung historischen Schilderungen aus dem Untersuchungsraum wie auch den Erkenntnissen aus anderen Landschaften. Die Daten belegen den Erfolg wie auch die Notwendigkeit der Fortführung der naturschutzorientierten Pflege insbesondere des Offenlandes.

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Harding, John R., John R. Jones, Shui-Yu Lu y Robin Wood. "Development of a microwave-enhanced isotopic labelling procedure based on the Eschweiler–Clarke methylation reaction". Tetrahedron Letters 43, n.º 52 (diciembre de 2002): 9487–88. http://dx.doi.org/10.1016/s0040-4039(02)02455-3.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Chen, Fu-Lin y Kuangsen Sung. "An exception of eschweiler-clarke methylation: Cyclocondensation of α-amino amides with formaldehyde and formic acid". Journal of Heterocyclic Chemistry 41, n.º 5 (septiembre de 2004): 697–700. http://dx.doi.org/10.1002/jhet.5570410507.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Umar, Qasim y Mei Luo. "A Brief Review: Advancement in the Synthesis of Amine through the Leuckart Reaction". Reactions 4, n.º 1 (29 de enero de 2023): 117–47. http://dx.doi.org/10.3390/reactions4010007.

Texto completo

Resumen

This review presents a summary of reactions that take place during the “Leuckart-type reaction”. The significance of, as well as recent advancements in, the synthesis of amines through simple and inexpensive methods using readily available raw materials is discussed. This review includes all catalytic and noncatalytic reactions that involve the Leuckart method. Recent studies have shown that at least a quarter of C–N bond-forming reactions in the pharmaceutical industry are occur with the support of reductive amination. Recently, experimental conditions have achieved excellent yields. The “Leuckart-type reaction” is technically associated with Eschweiler–Clarke methylation. Compounds are grouped in accordance with the precept of action. This includes drugs affecting the central nervous system, cardiovascular system and gastrointestinal tract; anticancer drugs, antibiotics, antiviral and antifungal drugs; drugs affecting anxiety; convulsant, biotic, and HIV drugs; and antidiabetic drugs. Therefore, this review supports the development of the Leuckart-type preparation of nitrogenous compounds, as well as their advancement in other areas of human development.

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Nikolaidis, Pantelis T. y Jose Afonso. "Comment on Eschweiler et al. Anatomy, Biomechanics, and Loads of the Wrist Joint. Life 2022, 12, 188". Life 12, n.º 8 (31 de julio de 2022): 1166. http://dx.doi.org/10.3390/life12081166.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Xu, Guangming, Bo Chen, Bin Guo, Dongxiu He y Shouzhuo Yao. "Detection of intermediates for the Eschweiler–Clarke reaction by liquid-phase reactive desorption electrospray ionization mass spectrometry". Analyst 136, n.º 11 (2011): 2385. http://dx.doi.org/10.1039/c0an00879f.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Finger, Claudia, Marco P. Roth, Marco Dietl, Aileen Gotowik, Nina Engels, Rebecca M. Harrington, Brigitte Knapmeyer-Endrun et al. "The Weisweiler passive seismological network: optimised for state-of-the-art location and imaging methods". Earth System Science Data 15, n.º 6 (29 de junio de 2023): 2655–66. http://dx.doi.org/10.5194/essd-15-2655-2023.

Texto completo

Resumen

Abstract. Passive seismic analyses are a key technology for the exploration and monitoring of subsurface reservoirs. Searching for alternative resources in the framework of the energy transition is creating a surge for identifying as many potential sites as possible suitable for geothermal exploitation. The Lower Rhine Embayment, at the western border of North Rhine-Westphalia in Germany, is an extensional system with a very high potential for geothermal exploitation. The area experiences moderate but continuous natural seismicity. Here, we report on a passive seismic dataset recorded with 48 seismic stations centred at and around Eschweiler–Weisweiler (https://doi.org/10.14470/MO7576467356, Finger et al., 2022). Background seismic noise levels are high at this site due to high levels of anthropogenic noise and thick unconsolidated sedimentary layers. The final station layout is a compromise between targeted network design and suitably quiet locations. We show that the network design allows for the application of state-of-the-art methods including waveform-based source location methods and ambient-noise velocity imaging methods.

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Bobowski, George. "3,4,9,9a-Tetrahydro-1,4-ethano-3,4a-(iminoethano)-4aH-carbazol-2(1H)-one derivatives. 2. Unusual results from Eschweiler-Clarke methylation". Journal of Organic Chemistry 50, n.º 7 (abril de 1985): 929–31. http://dx.doi.org/10.1021/jo00207a003.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Snider, Barry B., James F. Grabowski, Roger W. Alder, Bruce M. Foxman y Lin Yang. "Synthesis of a hindered C2-symmetric hydrazine and diamine by a crisscross cycloaddition of citronellal azine". Canadian Journal of Chemistry 84, n.º 10 (1 de octubre de 2006): 1242–49. http://dx.doi.org/10.1139/v06-084.

Texto completo

Resumen

Crisscross cycloaddition of citronellal azine (6) with 2 equiv. of TFA and powdered 3 Å molecular sieves in CH2Cl2 at reflux for 22 h afforded 37% of the desired C2-symmetric hydrazine 7 and 5%–10% of diastereomer 8 in which one of the 6–5 ring fusions is cis. Methylation of the hydrazine of 7 and reduction of the resulting salt (9) with Li in NH3 cleaved the N—N bond to give secondary tertiary amine 10 in 97% yield. Eschweiler–Clarke methylation afforded the C2-symmetric bis tertiary amine 11 in 69% yield. Racemic products were obtained in initial attempts at asymmetric catalysis using 7 or 11 as asymmetric bases, using bistertiary amine 11 as a ligand analogous to sparteine for alkyllithiums, or using the lithium amide from secondary tertiary amine 10 as an asymmetric base. Apparently, the proton is buried in the core of 11, leaving a hydrophobic surface; the free counterion is not an asymmetric catalyst. Diamine 11 may be too hindered to complex to s-BuLi. Tertiary amine 11 (pKa1 = 24.7) is more basic than DBU (pKa = 24.3) in CH3CN, in good agreement with theory.Key words: crisscross cycloaddition, azine, dipolar cycloaddition, calculation of pKa.

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Zhang, Meicheng, Yang Li, Wenli Yuan, Xinghua Guo, Chiyao Bai, Yingdi Zou, Honghan Long et al. "Construction of Flexible Amine‐linked Covalent Organic Frameworks by Catalysis and Reduction of Formic Acid via the Eschweiler–Clarke Reaction". Angewandte Chemie 133, n.º 22 (26 de abril de 2021): 12504–13. http://dx.doi.org/10.1002/ange.202102373.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Zhang, Meicheng, Yang Li, Wenli Yuan, Xinghua Guo, Chiyao Bai, Yingdi Zou, Honghan Long et al. "Construction of Flexible Amine‐linked Covalent Organic Frameworks by Catalysis and Reduction of Formic Acid via the Eschweiler–Clarke Reaction". Angewandte Chemie International Edition 60, n.º 22 (26 de abril de 2021): 12396–405. http://dx.doi.org/10.1002/anie.202102373.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Sudarma, I. M., A. R. Satriani y M. G. Darmayanti. "N,N-Dimethylation of Nitro-eugenol to its New 4-Allyl-2-(dimethylamino)-6-methoxyphenol via Eschweiler–Clarke Methylation Reaction". Asian Journal of Chemistry 29, n.º 4 (2017): 867–69. http://dx.doi.org/10.14233/ajchem.2017.20339.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Page, Philip C. Bulman, Harry Heaney, Gerasimos A. Rassias, Serge Reignier, Edward P. Sampler y Salem Talib. "ChemInform Abstract: The Reductive Cleavage of Cyclic Aminol Ethers to N,N-Dialkylamino-Derivatives: Modifications to the Eschweiler-Clarke Procedure." ChemInform 31, n.º 17 (8 de junio de 2010): no. http://dx.doi.org/10.1002/chin.200017041.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Kumar, Raju Suresh, Abdulrahman I. Almansour, Natarajan Arumugam y Raju Ranjith Kumar. "Substitution induced switch between Pictet-Spengler and Eschweiler-Clarke reactions: Selective synthesis of spiro acenaphthylene pyrrolo[1,2-b]-isoquinoline/pyrrolidine hybrids". Tetrahedron Letters 61, n.º 11 (marzo de 2020): 151606. http://dx.doi.org/10.1016/j.tetlet.2020.151606.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Farsa, Oldřich, Pavel Dolezal y Alexandr Hrabálek. "Esters and amides of hexanoic acid substituted with tertiary amino group in terminal position and their activity as transdermal permeation enhancers". Journal of the Serbian Chemical Society 75, n.º 5 (2010): 595–603. http://dx.doi.org/10.2298/jsc090527034f.

Texto completo

Resumen

Series of alkyl esters of 6-diethylamino-, 6-(pyrrolidin-1-yl)-, 6- (piperidin-1-yl) and 6-(morpholin-1-yl)hexanoic acids and alkylamides of 6-dimethylamino-, 6-(piperidin-1-yl) and 6-(morpholin-1-yl)hexanoic acids, containing 8-12 carbon atoms in the alkyl chain, were prepared by methods of classical organic synthesis. The appropriate secondary amine was alkylated with ethyl-6-bromohexanoate to give ester of ?-substituted hexanoic acid, except of ethyl-6-dimethylaminohexanoate (1), which was prepared by Eschweiler-Clarke methylation of 6-aminohexanoic acid followed by direct esterification with ethanol. The resulted esters of ?-substituted hexanoic acids underwent direct transesterification with long chain alkanols to yield the desired amino esters, or they were treated with long-chain alkylamines to prepare secondary amides of the appropriate heterocyclic hexanoic acids. These products were in vitro tested on their activity as transdermal permeation enhancers on the strips of the excised human skin with theophylline as the model permeant. The activity was evaluated using parameter enhancement ratio (ER), defined as the ratio between the overall amount of the permeant passing through the skin with the tested enhancer and that without tested substance. Decyl 6-(pyrrolidin- 1-yl)hexanoate (16) with ER = 30 showed the highest activity. The enhancing effects of the esters were generally better than those of the amides.

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Eschweiler, Jörg y Filippo Migliorini. "Reply to Nikolaidis, P.T.; Afonso, J. Comment on “Eschweiler et al. Anatomy, Biomechanics, and Loads of the Wrist Joint. Life 2022, 12, 188”". Life 12, n.º 8 (1 de agosto de 2022): 1174. http://dx.doi.org/10.3390/life12081174.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Blyton, Paul. "Book Reviews : Klaus Bartolke, Walter Eschweiler, Dieter Flechsenberger, Michal Palgi, and Menachem Rosner: Participation and Control 1985, Spardorf: Verlag Rene F. Wilfer. 182 pages". Organization Studies 7, n.º 3 (julio de 1986): 297–99. http://dx.doi.org/10.1177/017084068600700307.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Niestlé, Axel. "Deutscher Ubootkrieg 1914–1918 in Zeitzeugenberichten. Hrsg. von Hans Joachim Koerver, Eschweiler: Edition Riviere 2018, IX, 517 S., EUR 68,50 [ISBN 978‑3‑947‑61500‑1]". Militaergeschichtliche Zeitschrift 79, n.º 1 (5 de mayo de 2020): 221–23. http://dx.doi.org/10.1515/mgzs-2020-0029.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Fritsch, Hanna, Cosima Schreiber, Wolfram Malter, Matthias Warm, Max Zinser, Alexander Bach y Christian Eichler. "Abstract PO2-22-09: The impact of blood loss and blood pressure management in DIEP flap surgery– a retrospective analysis of 206 patients". Cancer Research 84, n.º 9_Supplement (2 de mayo de 2024): PO2–22–09—PO2–22–09. http://dx.doi.org/10.1158/1538-7445.sabcs23-po2-22-09.

Texto completo

Resumen

Abstract Introduction: Autologous breast reconstruction using the deep inferior epigastric perforator flap has excellent success rates and a natural aesthetic result. Therefore, this method and its management are of great importance in modern oncoplastic surgery. In particular, women who have undergone radiation therapy after mastectomy benefit from this satisfactory and usually uncomplicated method of breast reconstruction. To achieve a desirable outcome, the effects of blood loss and blood pressure management may play an important role. In this analysis, we hypothesize that neither postoperative blood pressure management (using catecholamines) nor the amount of blood loss (defined by the median hemoglobin level difference) will worsen the surgical outcome or increase the complication rate. Patients and Methods: We performed a multicenter, multisurgeon retrospective analysis with the following primary end points: intraoperative blood loss and postoperative blood pressure management. Secondary endpoints included serious complications including flap loss and minor complications. Patients (n=194) were included from 2014-2018 at St. Antonius Hospital in Eschweiler and from 2016 to July 2018 at the Cologne Municipal Breast Cancer Center in Holweide. Patients underwent either unilateral (n=180) or bilateral (n=13) breast reconstructions with DIEP flaps, resulting in a total of n=206 cases. The subgroup regarding blood pressure management was defined by cohorts with or without catecholamine administration and included all n=206 cases. Blood loss was defined by median hemoglobin level difference and could be calculated in n=199 cases. The cohorts of the two subgroups were comparable. Results: Six flap losses were detected in a total of 206 cases (2.9%). The distribution of flap losses in the blood pressure management subgroup was not statistically significant (p=.67), while the test was not available for the blood loss subgroup. Furthermore, the analysis showed that there were no significant differences in the rates of overall complications related to the amount of blood loss intraoperatively (p= .06) or blood pressure management postoperatively (p= .19). Conclusion: DIEP flap surgery is a safe method for autologous breast reconstruction, independent of blood loss and blood pressure management. Citation Format: Hanna Fritsch, Cosima Schreiber, Wolfram Malter, Matthias Warm, Max Zinser, Alexander Bach, Christian Eichler. The impact of blood loss and blood pressure management in DIEP flap surgery– a retrospective analysis of 206 patients [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO2-22-09.

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Biriukov, Klim O., Evgeniya Podyacheva, Ignatii Tarabrin, Oleg I. Afanasyev y Denis Chusov. "Simplified Version of the Eschweiler–Clarke Reaction". Journal of Organic Chemistry, 16 de febrero de 2024. http://dx.doi.org/10.1021/acs.joc.3c02476.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Gribble, Gordon W. "ChemInform Abstract: Eschweiler-Clarke Reductive Alkylation of Amines". ChemInform 39, n.º 37 (9 de septiembre de 2008). http://dx.doi.org/10.1002/chin.200837241.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

"Die richtige Einheit aus Linearführung und Antrieb". Konstruktion 69, n.º 10 (2017): 34–36. http://dx.doi.org/10.37544/0720-5953-2017-10-34.

Texto completo

Resumen

Komplett bearbeitete Führungswellen inklusive Zubehör, Kugelumlauf- und Rollenführungen sowie Kugelgewindetriebe: Das sind nur einige Beispiele für die erfolgreichen Komponenten aus dem umfang- reichen Lineartechnik-Sortiment von Rodriguez. Neben dem Komponentengeschäft bietet das Unternehmen aus dem nordrhein-westfälischen Eschweiler aber auch lineartechnische Baugruppen und Linearsysteme an, die der Geschäftsbereich Value Added Products (VAP) auf Wunsch als maßgeschneiderte Lösungen konzipiert und realisiert.

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

"Großwälzlager und Lineartechnik für Baumaschinen". Konstruktion 75, n.º 05 (2023): 12–14. http://dx.doi.org/10.37544/0720-5953-2023-05-12.

Texto completo

Resumen

Es gibt zahlreiche Anwendungen, bei denen nicht mit Standardlagern gearbeitet werden kann. Ein typisches Beispiel sind Baumaschinen: zum einen werden oft außergewöhnlich große Bauelemente benötigt, zum anderen müssen die Lager auch spezielle Anforderungen erfüllen. Der Eschweiler Experte Rodriguez hat nicht nur Drehverbindungen und andere Großwälzlager in unterschiedlichen Baugrößen und Ausführungen im Sortiment, sondern kann die Lösungen aufgrund eigener Fertigungskapazitäten auch maßgeschneidert produzieren oder gemäß Kundenanforderungen anpassen.

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

"Riesige Kugeldrehverbindung als Ersatzteil für ein Tagebaugerät". Konstruktion 70, n.º 01-02 (2018): 40–41. http://dx.doi.org/10.37544/0720-5953-2018-01-02-40.

Texto completo

Resumen

Rheinische Braunkohle liefert rund zwölf Prozent des gesamten deutschen Strombedarfs. Zu den bekanntesten Abbaugebieten zählt der Tagebau Garzweiler, der von RWE Power betrieben wird. Riesige Tagebaugeräte sorgen dort für einen schnellen und effizienten Abbau der Kohle. Die sehr speziellen Maschinen sind robust und langlebig konstruiert – wenn aber doch einmal ein Ersatzteil benötigt wird, stellt das schon aufgrund der großen Dimensionen eine Herausforderung dar. So geschehen bei einem älteren Verkippungsgerät, für das eine Kugeldrehverbindung mit einem Durchmesser von fast vier Metern benötigt wurde. Helfen konnte der Antriebstechnikspezialist Rodriguez aus Eschweiler.

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Mohamed, Hasan Daw A., Soad A. W. Omer, Salma G. Zbeda, Amal G. S. Arhoma y Mahmud Ashtewi S. Ashtewi. "Preparation Of Butenafine By Using Reductive Amination And Eschweiler - Clarke Methylation Methods". مجلة جامعة الزيتونة, 2020, 384. http://dx.doi.org/10.35778/1742-000-033-022.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Yamabe, Shinichi, Noriko Tsuchida y Shoko Yamazaki. "A density functional theory study of the hydride shift in the Eschweiler–Clarke reaction". Journal of Physical Organic Chemistry 34, n.º 10 (31 de mayo de 2021). http://dx.doi.org/10.1002/poc.4253.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Chen, Fu-Lin y Kuangsen Sung. "An Exception of Eschweiler-Clarke Methylation: Cyclocondensation of ?-Amino Amides with Formaldehyde and Formic Acid." ChemInform 36, n.º 9 (1 de marzo de 2005). http://dx.doi.org/10.1002/chin.200509105.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

"The Reductive Cleavage of Cyclic Aminol Ethers toN,N-Dialkylamino-derivatives: Modifications to the Eschweiler-Clarke Procedure". Synlett 2000, n.º 01 (2000): 104–6. http://dx.doi.org/10.1055/s-2000-6459.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Artículos de revistas sobre el tema "Milwaukee Eschweiler and Eschweiler"

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros