Hans Machemer

3.0k total citations
88 papers, 2.2k citations indexed

About

Hans Machemer is a scholar working on Cellular and Molecular Neuroscience, Molecular Biology and Plant Science. According to data from OpenAlex, Hans Machemer has authored 88 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Cellular and Molecular Neuroscience, 45 papers in Molecular Biology and 26 papers in Plant Science. Recurrent topics in Hans Machemer's work include Photoreceptor and optogenetics research (38 papers), Protist diversity and phylogeny (30 papers) and Plant and Biological Electrophysiology Studies (25 papers). Hans Machemer is often cited by papers focused on Photoreceptor and optogenetics research (38 papers), Protist diversity and phylogeny (30 papers) and Plant and Biological Electrophysiology Studies (25 papers). Hans Machemer collaborates with scholars based in Germany, United States and Japan. Hans Machemer's co-authors include Akihiko Ogura, Richard Bräucker, Jacques E. de Peyer, Roger Eckert, John M. Crook, Ulf T. Eysel, Akira Murakami, Keiichi Takahashi, Yasuo Nakaoka and Boris Martinac and has published in prestigious journals such as Nature, The Journal of Physiology and Biophysical Journal.

In The Last Decade

Hans Machemer

87 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hans Machemer Germany 25 1.3k 1.0k 491 474 379 88 2.2k
Yutaka Naitoh Japan 26 1.7k 1.3× 1.1k 1.1× 358 0.7× 526 1.1× 110 0.3× 61 2.5k
Yukio Hiramoto Japan 34 1.4k 1.1× 477 0.5× 270 0.5× 319 0.7× 144 0.4× 100 3.4k
Masakatsu Watanabe Japan 29 1.9k 1.5× 1.3k 1.2× 82 0.2× 1.4k 2.9× 87 0.2× 90 3.2k
Yasuo Nakaoka Japan 17 585 0.5× 383 0.4× 105 0.2× 157 0.3× 77 0.2× 66 915
Sidney L. Tamm United States 23 674 0.5× 225 0.2× 236 0.5× 264 0.6× 56 0.1× 61 1.5k
Shoji A. Baba Japan 25 538 0.4× 303 0.3× 401 0.8× 56 0.1× 163 0.4× 77 2.0k
Susan K. Dutcher United States 41 3.8k 3.0× 351 0.3× 754 1.5× 402 0.8× 84 0.2× 118 5.4k
A. V. Grimstone United Kingdom 16 875 0.7× 215 0.2× 68 0.1× 199 0.4× 93 0.2× 24 1.9k
Andreas Sievers Germany 34 1.5k 1.2× 165 0.2× 49 0.1× 2.2k 4.7× 299 0.8× 124 3.1k
Ingo Weyand Germany 23 1.2k 0.9× 990 1.0× 154 0.3× 45 0.1× 108 0.3× 26 2.7k

Countries citing papers authored by Hans Machemer

Since Specialization
Citations

This map shows the geographic impact of Hans Machemer'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 Hans Machemer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hans Machemer more than expected).

Fields of papers citing papers by Hans Machemer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hans Machemer. 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 Hans Machemer. The network helps show where Hans Machemer may publish in the future.

Co-authorship network of co-authors of Hans Machemer

This figure shows the co-authorship network connecting the top 25 collaborators of Hans Machemer. A scholar is included among the top collaborators of Hans Machemer 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 Hans Machemer. Hans Machemer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Machemer, Hans. (1999). The identification of gravikinesis from ciliates: Methods and experience. Advances in Space Research. 24(6). 867–876. 2 indexed citations
2.
Bräucker, Richard, et al.. (1998). Graviresponses of Gliding and Swimming Loxodes Using Step Transition to Weightlessness. Journal of Eukaryotic Microbiology. 45(4). 411–418. 5 indexed citations
3.
Machemer, Hans. (1998). Electric potentiation of gravikinesis in paramecium is possibly mediated by filaments. Advances in Space Research. 21(8-9). 1301–1309. 2 indexed citations
4.
Machemer, Hans. (1998). Mechanisms of graviperception and response in unicellular systems. Advances in Space Research. 21(8-9). 1243–1251. 5 indexed citations
5.
Machemer, Hans, et al.. (1997). Sedimentation velocity of Loxodes striatus immobilized by MnCl2. Acta Protozoologica. 36(2). 1 indexed citations
6.
Neugebauer, D.‐Ch. & Hans Machemer. (1997). Is there an orientation-dependent excursion of the Müller body in the ”statocystoid" of Loxodes ?. Cell and Tissue Research. 287(3). 577–582. 10 indexed citations
7.
Machemer, Hans & Richard Bräucker. (1996). Gravitaxis screened for physical mechanism using g-modulated cellular orientational behaviour.. PubMed. 9(1). 2–9. 16 indexed citations
8.
Machemer, Hans, et al.. (1995). Fluorometric measurement of the intracellular free Ca2+-concentration in the ciliate Didinium nasutum using Fura-2. Cell Calcium. 18(6). 484–494. 18 indexed citations
9.
Machemer, Hans. (1994). Gravity-dependent modulation of swimming rate in ciliates. Acta Protozoologica. 33(1). 53–57.
10.
Teunis, Peter & Hans Machemer. (1994). Analysis of three-dimensional ciliary beating by means of high-speed stereomicroscopy. Biophysical Journal. 67(1). 381–394. 12 indexed citations
11.
Machemer, Hans, et al.. (1993). Graviperception in unicellular organisms―a comparative behavioural study under short-term microgravity. Microgravity Science and Technology. 5(4). 221–231. 26 indexed citations
12.
Bräucker, Richard, et al.. (1992). Gravity-controlled gliding velocity in Loxodes. European Journal of Protistology. 28(2). 238–245. 20 indexed citations
13.
Mogami, Yoshihiro, et al.. (1992). Ciliary beating in three dimensions: Steps of a quantitative description. Journal of Mathematical Biology. 30(3). 215–249. 7 indexed citations
14.
Crook, John M., Ulf T. Eysel, & Hans Machemer. (1991). Influence of GABA-induced remote inactivation on the orientation tuning of cells in area 18 of feline visual cortex: A comparison with area 17. Neuroscience. 40(1). 1–12. 41 indexed citations
15.
Machemer, Hans. (1990). Cilia in Cell Motility: Membrane-Controlled Rotary Engines. ZOOLOGICAL SCIENCE. 7. 23–34. 7 indexed citations
16.
Machemer, Hans, et al.. (1990). Role of cell membranes and cytoskeletal organization in cell motility(シンポジウム) (PROGRESS IN PROTOZOOLOGY). ZOOLOGICAL SCIENCE. 7. 103–109. 1 indexed citations
17.
Eysel, Ulf T., John M. Crook, & Hans Machemer. (1990). GABA-induced remote inactivation reveals cross-orientation inhibition in the cat striate cortex. Experimental Brain Research. 80(3). 626–30. 70 indexed citations
18.
Machemer, Hans, et al.. (1989). A Ca paradox: Electric and behavioural responses of Paramecium following changes in external ion concentration. European Journal of Protistology. 25(1). 45–59. 16 indexed citations
19.
Machemer, Hans, et al.. (1987). Übungen zur Elektrophysiologie tierischer Zellen und Gewebe. 1 indexed citations
20.
Machemer, Hans & Roger Eckert. (1973). Electrophysiological Control of Reversed Ciliary Beating in Paramecium . The Journal of General Physiology. 61(5). 572–587. 57 indexed citations

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Yutaka Naitoh Breakdown of academic impact, for papers by Yukio Hiramoto Breakdown of academic impact, for papers by Masakatsu Watanabe Breakdown of academic impact, for papers by Yasuo Nakaoka Breakdown of academic impact, for papers by Sidney L. Tamm Breakdown of academic impact, for papers by Shoji A. Baba Breakdown of academic impact, for papers by Susan K. Dutcher Breakdown of academic impact, for papers by A. V. Grimstone Breakdown of academic impact, for papers by Andreas Sievers Breakdown of academic impact, for papers by Ingo Weyand
Rankless by CCL
2026