Alexander Karl

986 total citations · 1 hit paper
15 papers, 801 citations indexed

About

Alexander Karl is a scholar working on Surgery, Molecular Biology and Genetics. According to data from OpenAlex, Alexander Karl has authored 15 papers receiving a total of 801 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Surgery, 4 papers in Molecular Biology and 2 papers in Genetics. Recurrent topics in Alexander Karl's work include Bladder and Urothelial Cancer Treatments (5 papers), Urinary and Genital Oncology Studies (4 papers) and Mesenchymal stem cell research (2 papers). Alexander Karl is often cited by papers focused on Bladder and Urothelial Cancer Treatments (5 papers), Urinary and Genital Oncology Studies (4 papers) and Mesenchymal stem cell research (2 papers). Alexander Karl collaborates with scholars based in Germany, United States and Netherlands. Alexander Karl's co-authors include Peter Boekstegers, Corinna Lebherz, Achim Pfosser, Georges von Degenfeld, Philip Raake, Christian Kupatt, Stefan Zahler, Claus Vogelmeier, Katja Issbrücker and Pieter S. Hiemstra and has published in prestigious journals such as Journal of Clinical Investigation, Pain and Reproduction.

In The Last Decade

Alexander Karl

15 papers receiving 791 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

An angiogenic role for the human peptide antibiotic LL-37/hCAP-18

2003 699 citations Andreas Rembert Koczulla, Georges von Degenfeld et al. Journal of Clinical Investigation profile →

Peers

Countries citing papers authored by Alexander Karl

Since Specialization

Citations

This map shows the geographic impact of Alexander Karl's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alexander Karl with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alexander Karl more than expected).

Fields of papers citing papers by Alexander Karl

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alexander Karl. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alexander Karl. The network helps show where Alexander Karl may publish in the future.

Co-authorship network of co-authors of Alexander Karl

This figure shows the co-authorship network connecting the top 25 collaborators of Alexander Karl. A scholar is included among the top collaborators of Alexander Karl based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Alexander Karl. Alexander Karl is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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15 of 15 papers shown

#	Work	Indexed citations
1	The HELENA study: Hexvix®-TURB vs. white-light TURB followed by intravesical adjuvant chemotherapy—a prospective randomized controlled open-label multicenter non-inferiority study 2021 ·World Journal of Urology ·Michael Gierth, Johannes Breyer, Florian Zeman, Hans‐Martin Fritsche, (unknown), Alexander Karl, Dirk Zaak, Arnulf Stenzl, (unknown), (unknown), (unknown), M. Bürger, Roman Mayr	3
2	Management des muskelinvasiven Harnblasenkarzinoms 2020 ·Uro-News ·Alexander Karl	1
3	Blut im Urin! Das müssen Sie unbedingt abklären 2018 ·MMW - Fortschritte der Medizin ·Alexander Karl	1
4	Comparison of 6 % hydroxyethyl starch and 5 % albumin for volume replacement therapy in patients undergoing cystectomy (CHART): study protocol for a randomized controlled trial 2015 ·Trials ·Tobias Kammerer, (unknown), Michaela Schwarz, (unknown), Bernhard Zwißler, Vera von Dossow, Alexander Karl, Hans‐Helge Müller, Markus Rehm	12
5	Photodynamic Diagnosis of the Urinary Bladder using Flexible Instruments ? Ready for the Outpatient Setting? 2015 ·Journal of Clinical Trials ·Alexander Karl, (unknown)	4
6	Ist es ein Harnblasenkarzinom? 2011 ·MMW - Fortschritte der Medizin ·Alexander Karl	1
7	Evidence‐based urology in practice: loss to follow‐up 2010 ·British Journal of Urology ·Alexander Karl, Elie A. Akl, (unknown), Philipp Dahm	3
8	Androgen deprivation therapy for prostate cancer: indications, contraindications and possible consequences 2009 ·F1000 Medicine Reports ·Alexander Karl, Badrinath R. Konety	5
9	Alternatively spliced human catechol- O -methyltransferase ( COMT ) rationalizes lack of Val158Met effects on pain tolerance 2008 ·Pain ·Philipp Sand, (unknown), (unknown), Nikola P. Konstandin, Alexander Karl, K Wagner, (unknown)	1
10	Manual zur kognitiven Verhaltenstherapie von posttraumatischen Belastungsstörungen bei Verkehrsunfallopfern 2005 ·Zurich Open Repository and Archive (University of Zurich) ·Tanja Zöllner, Alexander Karl, Andreas Maercker, (unknown), (unknown)	2
11	An angiogenic role for the human peptide antibiotic LL-37/hCAP-18 2003 ·Journal of Clinical Investigation ·Andreas Rembert Koczulla, Georges von Degenfeld, Christian Kupatt, Florian Krötz, Stefan Zahler, Torsten Gloe, Katja Issbrücker, Pia Unterberger, Mohamed Zaiou, Corinna Lebherz, Alexander Karl, Philip Raake, Achim Pfosser, Peter Boekstegers, Ulrich Welsch, Pieter S. Hiemstra, Claus Vogelmeier, Richard L. Gallo, Matthias Clauss, Robert Bals	36
12	An angiogenic role for the human peptide antibiotic LL-37/hCAP-18 breakdown → 2003 ·Journal of Clinical Investigation ·Andreas Rembert Koczulla, Georges von Degenfeld, Christian Kupatt, Florian Krötz, Stefan Zahler, Torsten Gloe, Katja Issbrücker, Pia Unterberger, Mohamed Zaiou, Corinna Lebherz, Alexander Karl, Philip Raake, Achim Pfosser, Peter Boekstegers, Ulrich Welsch, Pieter S. Hiemstra, Claus Vogelmeier, Richard L. Gallo, Matthias Clauss, Robert Bals	699
13	Therapeutic Angiogenesis/Arteriogenesis in the Chronic Ischemic Rabbit Hindlimb: Effect of Venous Basic Fibroblast Growth Factor Retroinfusion 2003 ·Endothelium ·Corinna Lebherz, Georges von Degenfeld, Alexander Karl, Achim Pfosser, Philip Raake, (unknown), Dimitri Scholz, Christian Kupatt, Peter Boekstegers	19
14	Therapeutic Angiogenesis/Arteriogenesis in the Chronic Ischemic Rabbit Hindlimb: Effect of Venous Basic Fibroblast Growth Factor Retroinfusion 2003 ·Endothelium ·Corinna Lebherz, Georges von Degenfeld, Alexander Karl, Achim Pfosser, Philip Raake, (unknown), Dimitri Scholz, Christian Kupatt, Peter Boekstegers	3
15	Activity of myo -inositol-1-phosphate synthase in the epididymal spermatozoa of rams 1983 ·Reproduction ·Mary W. Loewus, R.W. Wright, K. R. Bondioli, Diana L. Bedgar, Alexander Karl	11

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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