Ivan Hapala

2.3k total citations
48 papers, 1.5k citations indexed

About

Ivan Hapala is a scholar working on Molecular Biology, Biochemistry and Surgery. According to data from OpenAlex, Ivan Hapala has authored 48 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Molecular Biology, 9 papers in Biochemistry and 6 papers in Surgery. Recurrent topics in Ivan Hapala's work include Plant biochemistry and biosynthesis (15 papers), Microbial Metabolic Engineering and Bioproduction (11 papers) and Fungal and yeast genetics research (10 papers). Ivan Hapala is often cited by papers focused on Plant biochemistry and biosynthesis (15 papers), Microbial Metabolic Engineering and Bioproduction (11 papers) and Fungal and yeast genetics research (10 papers). Ivan Hapala collaborates with scholars based in Slovakia, Austria and United States. Ivan Hapala's co-authors include Jean‐Marc Nicaud, Séraphim Papanikolaou, Thierry Chardot, France Thévenieau, Athanasios Béopoulos, Marie‐Thérèse Le Dall, Peter Butko, Martin Valachovič, James J. Knittel and Martina Garaiová and has published in prestigious journals such as Journal of Biological Chemistry, Applied and Environmental Microbiology and Biochemistry.

In The Last Decade

Ivan Hapala

48 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ivan Hapala Slovakia 21 1.2k 260 254 207 162 48 1.5k
David G. McLaren United States 22 1.2k 1.0× 129 0.5× 107 0.4× 204 1.0× 48 0.3× 71 1.8k
Günther Daum Austria 16 1.8k 1.5× 179 0.7× 673 2.6× 79 0.4× 437 2.7× 19 2.2k
Hans‐Joachim Schüller Germany 23 1.7k 1.4× 391 1.5× 210 0.8× 38 0.2× 368 2.3× 41 1.9k
Paola Coccetti Italy 26 1.4k 1.2× 147 0.6× 53 0.2× 51 0.2× 270 1.7× 61 1.8k
F. W. Hemming United Kingdom 28 1.5k 1.2× 137 0.5× 202 0.8× 71 0.3× 126 0.8× 82 2.0k
Tiziana Lodi Italy 23 1.4k 1.2× 212 0.8× 72 0.3× 35 0.2× 114 0.7× 76 1.8k
Tuomo A. Keinänen Finland 27 1.6k 1.4× 102 0.4× 800 3.1× 238 1.1× 47 0.3× 87 1.9k
Anil K. Joshi United States 24 1.4k 1.1× 37 0.1× 309 1.2× 53 0.3× 76 0.5× 33 1.9k
Peter Kötter Germany 36 3.7k 3.0× 752 2.9× 178 0.7× 40 0.2× 184 1.1× 67 4.2k
Klaus Natter Austria 20 1.4k 1.1× 279 1.1× 713 2.8× 48 0.2× 241 1.5× 27 1.7k

Countries citing papers authored by Ivan Hapala

Since Specialization
Citations

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

Fields of papers citing papers by Ivan Hapala

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ivan Hapala

This figure shows the co-authorship network connecting the top 25 collaborators of Ivan Hapala. A scholar is included among the top collaborators of Ivan Hapala 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 Ivan Hapala. Ivan Hapala 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.
Valachovič, Martin, Martina Garaiová, Roman Holič, & Ivan Hapala. (2015). Squalene is lipotoxic to yeast cells defective in lipid droplet biogenesis. Biochemical and Biophysical Research Communications. 469(4). 1123–1128. 40 indexed citations
2.
3.
Nováková, Zuzana Varchulová, et al.. (2009). Tributyltin-resistantMethanothermobacter thermautotrophicusmutant with mutational substitutions in the A1A0-ATP synthase operon. FEMS Microbiology Letters. 298(2). 255–259. 2 indexed citations
4.
Mravec, Boris, M. Juráni, Andrej Tillinger, et al.. (2008). Hypergravity‐induced Increase in Plasma Catecholamine and Corticosterone Levels in Telemetrically Collected Blood of Rats during Centrifugation. Annals of the New York Academy of Sciences. 1148(1). 201–208. 12 indexed citations
5.
Kozovská, Zuzana, Martin Valachovič, Ivan Hapala, et al.. (2007). Chemosensitisation of drug-resistant and drug-sensitive yeast cells to antifungals. International Journal of Antimicrobial Agents. 29(2). 170–178. 20 indexed citations
6.
Ruckenstuhl, Christoph, Silvia Lang, Pravas Kumar Baral, et al.. (2006). Characterization of Squalene Epoxidase ofSaccharomyces cerevisiaeby Applying Terbinafine-Sensitive Variants. Antimicrobial Agents and Chemotherapy. 51(1). 275–284. 39 indexed citations
7.
Květňanský, Richard, Boris Mravec, Andrej Tillinger, et al.. (2005). Effect of hypergravity on catecholamine levels in telemetrically collected blood of rats during centrifugation. ESASP. 585. 69. 1 indexed citations
8.
Hapala, Ivan, et al.. (2005). Two mutants selectively resistant to polyenes reveal distinct mechanisms of antifungal activity by nystatin and amphotericin B. Biochemical Society Transactions. 33(5). 1206–1206. 13 indexed citations
9.
Hapala, Ivan, et al.. (2004). Low concentrations of the non-ionic detergent Nonidet P-40 interfere with sterol biogenesis and viability of the yeastSaccharomyces cerevisiae. FEMS Microbiology Letters. 238(1). 241–248. 5 indexed citations
10.
Valachovič, Martin, et al.. (2004). Low concentrations of the non-ionic detergent Nonidet P-40 interfere with sterol biogenesis and viability of the yeast. FEMS Microbiology Letters. 238(1). 241–248. 1 indexed citations
11.
12.
Daum, G., et al.. (1997). Changes in cellular ergosterol distribution in intramitochondrial energy-depletedSaccharomyces cerevisiae cells. Folia Microbiologica. 42(3). 229–231. 1 indexed citations
13.
Hapala, Ivan. (1997). Breaking the Barrier: Methods for Reversible Permeabilization of Cellular Membranes. Critical Reviews in Biotechnology. 17(2). 105–122. 70 indexed citations
14.
Hapala, Ivan, et al.. (1996). Characterization of a non-specific lipid transfer protein associated with the peroxisomal membrane of the yeast, Saccharomyces cerevisiae. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1285(1). 71–78. 5 indexed citations
15.
Hapala, Ivan, et al.. (1996). Mechanism of sterol uptake in yeast. Folia Microbiologica. 41(1). 95–96. 2 indexed citations
16.
Hapala, Ivan, et al.. (1994). Specific changes in nucleotide and lipid synthesis are linked to growth defects in intramitochondrial energy-depleted yeast cells. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1190(1). 40–42. 2 indexed citations
17.
Woodford, Judith K., Ivan Hapala, John R. Jefferson, et al.. (1994). Mechanistic studies of sterol carrier protein-2 effects on L-cell fibroblast plasma membrane sterol domains. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1189(1). 52–60. 20 indexed citations
18.
Butko, Peter, Ivan Hapala, György Nemecz, & Friedhelm Schroeder. (1992). Sterol domains in phospholipid membranes: dehydroergosterol polarization measures molecular sterol transfer. Journal of Biochemical and Biophysical Methods. 24(1-2). 15–37. 26 indexed citations
19.
Hapala, Ivan, Peter Butko, & Friedhelm Schroeder. (1990). Role of acidic phospholipids in intermembrane sterol transfer. Chemistry and Physics of Lipids. 56(1). 37–47. 17 indexed citations
20.
Butko, Peter, Ivan Hapala, T J Scallen, & Friedhelm Schroeder. (1990). Acidic phospholipids strikingly potentiate sterol carrier protein 2 mediated intermembrane sterol transfer. Biochemistry. 29(17). 4070–4077. 44 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.

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