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1

Ideals and their complements in commutative semirings

Chajda, Ivan, Länger, Helmut

Journal:

Soft Computing - A Fusion of Foundations, Methodologies and Applications

Year:

2018

Language:

english

File:

PDF, 694 KB

english, 2018

2

Optimization of Liquid Gun Propellants based on nitromethane/methanol by physical and chemical modifiers

Gesa Langer, Helmut Schmid, Wolfgang Koppenhöfer

Journal:

Propellants, Explosives, Pyrotechnics

Year:

1992

Language:

english

File:

PDF, 414 KB

english, 1992

3

Orthomodular Implication Algebras

Ivan Chajda, Radomír Halas, Helmut Länger

Journal:

International Journal of Theoretical Physics

Year:

2001

Language:

english

File:

PDF, 47 KB

english, 2001

4

Simple Axioms for Orthomodular Implication Algebras

Ivan Chajda, Radomír Halaš, Helmut Länger

Journal:

International Journal of Theoretical Physics

Year:

2004

Language:

english

File:

PDF, 41 KB

english, 2004

5

Interferences in coagulation tests – evaluation of the 570-nm method on the Dade Behring BCS analyser

Junker, Ralf, Käse, Margit, Schulte, Helmut, Bäumer, Ruth, Langer, Claus, Nowak-Göttl, Ulrike

Journal:

Clinical Chemistry and Laboratory Medicine

Year:

2005

Language:

english

File:

PDF, 124 KB

english, 2005

6

The variety of commutative additively and multiplicatively idempotent semirings

Chajda, Ivan, Länger, Helmut

Journal:

Semigroup Forum

Year:

2018

Language:

english

File:

PDF, 341 KB

english, 2018

7

Analysis of cardiopulmonary findings in COVID-19 fatalities: High incidence of pulmonary artery thrombi and acute suppurative bronchopneumonia

Grosse, Claudia, Grosse, Alexandra, Salzer, Helmut J.F., DÃ¼nser, Martin W., Motz, Reinhard, Langer, Rupert

Journal:

Cardiovascular Pathology

Year:

2020

File:

PDF, 6.49 MB

2020

8

A characterization of full function algebras

Journal:

Journal of Algebra

Year:

1988

Language:

english

File:

PDF, 207 KB

english, 1988

9

The free algebra in the subvarieties of the variety of regular bands: Journal of Pure and Applied Algebra 24 (1982) 283–286

Journal:

Journal of Pure and Applied Algebra

Year:

1982

File:

PDF, 26 KB

1982

10

Comparison of three different purification methods for the routine preparation of [11C] Metomidate

Markus Mitterhauser, Wolfgang Wadsak, Oliver Langer, Joern Schmaljohann, Georg Zettinig, Robert Dudczak, Helmut Viernstein, Kurt Kletter

Journal:

Applied Radiation and Isotopes

Year:

2003

Language:

english

File:

PDF, 99 KB

english, 2003

11

An elementary proof of the Fundamental Theorem of Natural Selection in the case of two alleles

Journal:

Archiv der Mathematik

Year:

1994

Language:

english

File:

PDF, 107 KB

english, 1994

12

A remark on the Fundamental Theorem of Natural Selection

Helmut Länger, Peter Nylen, Tin-Yau Tam

Journal:

Archiv der Mathematik

Year:

1993

Language:

english

File:

PDF, 86 KB

english, 1993

13

The free algebra in the variety generated by quasi-trivial semigroups

Journal:

Semigroup Forum

Year:

1980

Language:

english

File:

PDF, 177 KB

english, 1980

14

The Zerodivisor Graph of a Qoset

Radomír Halaš, Helmut Länger

Journal:

Year:

2010

Language:

english

File:

PDF, 277 KB

english, 2010

15

Symmetric Differences on Posets with an Antitone Involution

Ivan Chajda, Helmut Länger

Journal:

Year:

2012

Language:

english

File:

PDF, 259 KB

english, 2012

16

The free algebra in the subvarieties of the variety of regular bands

Journal:

Journal of Pure and Applied Algebra

Year:

1982

Language:

english

File:

PDF, 210 KB

english, 1982

17

Tissue-based proteomics reveals FXYD3, S100A11 and GSTM3 as novel markers for regional lymph node metastasis in colon cancer

Stephan Meding, Benjamin Balluff, Mareike Elsner, Cédrik Schöne, Sandra Rauser, Ulrich Nitsche, Matthias Maak, Alexander Schäfer, Stefanie M Hauck, Marius Ueffing, Rupert Langer, Heinz Höfler, Helmut

Journal:

The Journal of Pathology

Year:

2012

Language:

english

File:

PDF, 5.66 MB

english, 2012

18

On an inequality arising from population genetics

Journal:

Archiv der Mathematik

Year:

1987

Language:

english

File:

PDF, 137 KB

english, 1987

19

Strictly copositive matrices and ESS's

Journal:

Archiv der Mathematik

Year:

1990

Language:

english

File:

PDF, 199 KB

english, 1990

20

Matrices with a strictly dominant eigenvalue

Journal:

Elemente der Mathematik

Year:

2001

Language:

english

File:

PDF, 86 KB

english, 2001

21

Genetic aberrations in primary esophageal melanomas: molecular analysis of c-KIT, PDGFR, KRAS, NRAS and BRAF in a series of 10 cases

Langer, Rupert, Becker, Karen, Feith, Marcus, Friess, Helmut, Höfler, Heinz, Keller, Gisela

Journal:

Modern Pathology

Year:

2011

Language:

english

File:

PDF, 398 KB

english, 2011

22

Transition-metal impurities in semiconductors and heterojunction band lineups

Langer, Jerzy M., Delerue, C., Lannoo, M., Heinrich, Helmut

Journal:

Physical Review B

Year:

1988

Language:

english

File:

PDF, 955 KB

english, 1988

23

Synthesis of Novel Halogenated 4(1H)-Quinolones by Thermolysis of Arylaminomethylene-1,3-dioxane-4,6-diones

Rotzoll, Sven, Reinke, Helmut, Fischer, Christine, Langer, Peter

Journal:

Year:

2009

Language:

english

File:

PDF, 242 KB

english, 2009

24

On a variety of commutative multiplicatively idempotent semirings

Chajda, Ivan, Länger, Helmut

Journal:

Semigroup Forum

Year:

2017

Language:

english

File:

PDF, 383 KB

english, 2017

25

Relational systems with involution

Chajda, Ivan, Länger, Helmut

Journal:

Asian-European Journal of Mathematics

Year:

2016

Language:

english

File:

PDF, 145 KB

english, 2016

26

Coupled Right Orthosemirings Induced by Orthomodular Lattices

Chajda, Ivan, Länger, Helmut

Journal:

Year:

2017

Language:

english

File:

PDF, 174 KB

english, 2017

27

Significance of Histopathological Tumor Regression After Neoadjuvant Chemotherapy in Gastric Adenocarcinomas

Becker, Karen, Langer, Rupert, Reim, Daniel, Novotny, Alexander, Meyer zum Buschenfelde, Christian, Engel, Jutta, Friess, Helmut, Hofler, Heinz

Journal:

Annals of Surgery

Year:

2011

Language:

english

File:

PDF, 212 KB

english, 2011

28

Ideals of direct products of rings

Chajda, Ivan, Eigenthaler, Günther, Länger, Helmut

Journal:

Asian-European Journal of Mathematics

Year:

2018

Language:

english

File:

PDF, 111 KB

english, 2018

29

Residuated operators in complemented posets

Chajda, Ivan, Länger, Helmut

Journal:

Asian-European Journal of Mathematics

Year:

2018

Language:

english

File:

PDF, 167 KB

english, 2018

30

A physics-based model of hyperabrupt varactors for nonlinear transmission line applications

Peter Heymann, Ralf Doerner, Frank Bugge, Thomas Langer, Helmut Prinzler

Journal:

International Journal of RF and Microwave Computer-Aided Engineering

Year:

1997

Language:

english

File:

PDF, 242 KB

english, 1997

31

Predicting the function and subcellular location of Caenorhabditis elegans proteins similar to Saccharomyces cerevisiae β-oxidation enzymes

Aner Gurvitz, Sigrid Langer, Martin Piskacek, Barbara Hamilton, Helmut Ruis, Andreas Hartig

Journal:

Year:

2000

Language:

english

File:

PDF, 148 KB

english, 2000

32

Investigation of charge variants of rViscumin by two-dimensional gel electrophoresis and mass spectrometry

Petra Lutter, Helmut E. Meyer, Martin Langer, Klaus Witthohn, Wilma Dormeyer, Albert Sickmann, Martin Blüggel

Journal:

ELECTROPHORESIS

Year:

2001

Language:

english

File:

PDF, 164 KB

english, 2001

33

Synthesis of 2,6-Dioxo-1,2,3,4,5,6-hexahydroindoles by Acid- Catalyzed Cyclization of Acetal-Protected (2,4-Dioxocyclohex-1-yl)acetamides and their Transformation into 5,8,9,10-Tetrahydro-6H-indolo[2,1-a]isoquinolin-9-ones

Benard Juma, Muhammad Adeel, Alexander Villinger, Helmut Reinke, Anke Spannenberg, Christine Fischer, Peter Langer

Journal:

Advanced Synthesis & Catalysis

Year:

2009

Language:

english

File:

PDF, 254 KB

english, 2009

34

Regioselective Palladium(0)-Catalyzed Cross-Coupling Reactions and Metal-Halide Exchange Reactions of Tetrabromothiophene: Optimization, Scope and Limitations

Đǎng Thanh Tùng, Đǎng Thanh Tuân, Nasir Rasool, Alexander Villinger, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Advanced Synthesis & Catalysis

Year:

2009

Language:

english

File:

PDF, 293 KB

english, 2009

35

ChemInform Abstract: Synthesis of Biaryls, Fluorenones, Cyclopenta[def]phenanthren-4-ones, and Benzophenones Based on Formal [3 + 3] Cyclocondensations of 1,3-Bis(silyloxy)buta-1,3-dienes with 3-(Silyloxy)-2-en-1-ones.

Stefanie Reim, Matthias Lau, Muhammad Adeel, Ibrar Hussain, Mirza A. Yawer, Abdolmajid Riahi, Zafar Ahmed, Christine Fischer, Helmut Reinke, Peter Langer

Journal:

Year:

2009

File:

PDF, 59 KB

2009

36

ChemInform Abstract: First Synthesis of Functionalized 5-Aryl-3-(trifluoromethyl)phenols by Regioselective [3 + 3] Cyclocondensations of 1,3-Bis(silyloxy)-1,3-butadienes with 3-Aryl-3-silyloxy-1-trifluoromethyl-2-en-1-ones.

Stefan Buettner, Abdolmajid Riahi, Ibrar Hussain, Mirza A. Yawer, Mathias Lubbe, Alexander Villinger, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 30 KB

2009

37

ChemInform Abstract: Synthesis of Functionalized 2-Alkoxybenzoates, 2-Aryloxybenzoates and Xanthones Based on Formal [3 + 3] Cyclocondensations of 3-Alkoxy- and 3-Aryloxy-1-silyloxy-1,3-butadienes with 3-Silyloxy-2-en-1-ones.

Gerson Mross, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 39 KB

2009

38

ChemInform Abstract: Synthesis of Polyketide-Type Phenols by Domino “Michael/retro-Michael/Aldol” Reactions of 3-Formylchromones with Silyl Enol Ethers Derived from Ethyl 3,5-Dioxohexanoate.

Muhammad Adeel, Muhammad Nawaz, Alexander Villinger, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 25 KB

2009

39

ChemInform Abstract: Synthesis of 2,6-Dioxo-1,2,3,4,5,6-hexahydroindoles by Acid-Catalyzed Cyclization of Acetal-Protected (2,4-Dioxocyclohex-1-yl)acetamides and Their Transformation into 5,8,9,10-Tetrahydro-6H-indolo[2,1-a]isoquinolin-9-ones.

Benard Juma, Muhammad Adeel, Alexander Villinger, Helmut Reinke, Anke Spannenberg, Christine Fischer, Peter Langer

Journal:

Year:

2009

Language:

english

File:

PDF, 34 KB

english, 2009

40

ChemInform Abstract: Regioselective Synthesis of Functionalized 4-Nitro- and 4-Amino-phenols Based on Formal [3 + 3] Cyclocondensations of 3-Ethoxy-2-nitro-2-en-1-ones with 1,3-Bis(silyloxy)-1,3-butadienes.

Abdolmajid Riahi, Mohanad Shkoor, Rasheed Ahmad Khera, Helmut Reinke, Peter Langer

Journal:

Year:

2009

File:

PDF, 28 KB

2009

41

ChemInform Abstract: First Synthesis of 5-Cyanosalicylates by Formal [3 + 3] Cyclocondensations of 1,3-Bis(silyloxy)-1,3-butadienes.

Abdolmajid Riahi, Olumide Fatunsin, Mohanad Shkoor, Ruediger Dede, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 25 KB

2009

42

ChemInform Abstract: Diversity-Oriented Synthesis of 1-Hydroxy-2,4-benzodioates by Regioselective [3 + 3] Cyclocondensations of 1,3-Bis(silyloxy)-1,3-butadienes with 3-Alkoxy- and 3-Silyloxy-2-alkoxycarbonyl-2-en-1-ones.

Mohanad Shkoor, Abdolmajid Riahi, Olumide Fatunsin, Ibrar Hussain, Mirza A. Yawer, Mathias Lubbe, Stefanie Reim, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 47 KB

2009

43

ChemInform Abstract: Synthesis of Bicyclic Salicylates by [3 + 3] Cyclization of 1,3-Bis(silyl enol ethers) with Cyclic 3-(Silyloxy)alk-2-en-1-ones.

Nicole Hoettecke, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 31 KB

2009

44

ChemInform Abstract: Regioselective Synthesis of 6-Aryl-5-(chloroethyl)salicylates by Domino “[3 + 3] Cyclization/Homo-Michael” Reactions of 1,3-Bis(silyloxy)-1,3-butadienes with 1-Formyl- and 1-Acetyl-1-aroyl-cyclopropanes.

Abdolmajid Riahi, Matthias Lau, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 38 KB

2009

45

ChemInform Abstract: Regioselective Palladium(0)-Catalyzed Cross-Coupling Reactions and Metal-Halide Exchange Reactions of Tetrabromothiophene: Optimization, Scope and Limitations.

Dang Thanh Tung, Dang Thanh Tuan, Nasir Rasool, Alexander Villinger, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 78 KB

2009

46

ChemInform Abstract: Synthesis of Functionalized Salicylates by Formal [3 + 3] Cyclocondensation of 1,3-Bis(silyloxy)buta-1,3-dienes with 3-Alkoxy-2-en-1-ones.

Gerson Mross, Simone Ladzik, Helmut Reinke, Anke Spannenberg, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 60 KB

2009

47

ChemInform Abstract: Diversity-Oriented Synthesis of Functionalized Diaryl Sulfones by Regioselective [3 + 3] Cyclizations of 1,3-Bis(siloxy)buta-1,3-dienes with 2-(Arylsulfonyl)-3-ethoxy-2-en-1-ones: Scope and Limitations.

Mohanad Shkoor, Abdolmajid Riahi, Olumide Fatunsin, Helmut Reinke, Christine Fischer, Peter Langer

Journal:

Year:

2009

File:

PDF, 29 KB

2009

48

ChemInform Abstract: Synthesis of Trifluoromethylated 3-(3-Pyrazolyl)indole-N-glycosides and Their Cytotoxic Activity Against Human Keratinocytes (HaCaT).

Stefanie Libnow, Martin Hein, Manuela Harms, Kristian Wende, Michael Lalk, Helmut Reinke, Peter Langer

Journal:

Year:

2010

File:

PDF, 38 KB

2010

49

Domino Michael/Retro-Michael/Mukaiyama-Aldol Reactions of 1,3-Bis-Silyl Enol Ethers with 3-Acyl- and 3-Formylbenzopyrylium Triflates – Synthesis of Functionalised 2,4′-Dihydroxybenzophenones

Bettina Appel, Sven Rotzoll, Remo Kranich, Helmut Reinke, Peter Langer

Journal:

European Journal of Organic Chemistry

Year:

2006

Language:

english

File:

PDF, 170 KB

english, 2006

50

One-Pot Synthesis of Functionalized 3-(Trifluoromethyl)phenols by [3+3] Cyclization of 1,3-Bis(silyl enol ethers) with α,β-Unsaturated Trifluoromethyl Ketones

Constantin Mamat, Thomas Pundt, T. H. Tam Dang, Renske Klassen, Helmut Reinke, Martin Köckerling, Peter Langer

Journal:

European Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 332 KB

english, 2008