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Academician

HAYDAR KARAKAYA

Profesör

Ondokuz Mayıs Üniversitesi Fen Fakültesi Biyoloji Bölümü

Research topics OpenAlex
  1. Ana Dal Fen Bilimleri ve Matematik Temel Alanı
  2. Yan Dal Biyoloji
Keywords YÖKSİS
Articles 17 YÖKSİS 17 · OpenAlex 0 Total citations 75 h-index 4 · OpenAlex OpenAlex coverage %59 matched 10 / 17 Q1 articles 2 Scopus · WoS Q1 2 Best field rank #313 / 636 Keyword · top 49.2% Co-authors 19 2 Turkish institutions

Citation impact

OpenAlex YÖKSİS articles matched in OpenAlex: 10
h-index 4 Percentile in Türkiye: 52 #825 of 1,745 at their university by h-index
i10-index
2
Total citations
75
Top 42% in Türkiye
Per article
7.5
FWCI
0.35
1.00 = world average
World top 1%
0
World top 10%
0

Most cited articles

  1. Silver(I)-barbital based frameworks: Syntheses, crystal structures, spectroscopic, thermal and antimicrobial activity studies 2006 37 citations
  2. 5 5 diethylbarbiturate complexes of silver with 2 2 bipyridine and 3 2 pyridyl propanol syntheses crystal structures spectroscopic thermal and antimicrobial activity studies 2008 16 citations
  3. Characterisation of an opcA Mutant of the Unicellular Cyanobacterium Synechocystis sp PCC 6803 2015 8 citations
How is this computed?

h-index and citations are computed from the citation counts of this academic’s YÖKSİS articles matched in OpenAlex (not Google Scholar, WoS or Scopus). Unmatched articles are not included.

Citing publications

Crossref 9 publications citing 10 DOI-bearing articles · 1 Türkiye-affiliated

2019 12020 42021 4

  1. 10.1093/jb/mvab014 2021
  2. 10.1007/s12560-021-09504-x 2021
  3. 10.3389/fmicb.2021.670705 2021
  4. 10.1016/j.eurpolymj.2021.110616 2021
  5. 10.1042/bcj20200038 2020
  6. 10.1042/bsr20193325 2020
  7. 10.3390/pharmaceutics12090794 2020
  8. 10.1016/j.ejmech.2020.112613 2020 · cites 2 articles of this academic
  9. Effect of cysteine/serine changes to glucose-6-phosphate dehydrogenase of<i>Synechocystis</i>sp. PCC6803 in cell-free extracts TR Kübra Özkul et al. · European Journal of Phycology · 2019
Where does this list come from?

Extracted from the reference lists in Crossref’s public March 2026 data file; 18.4% of the file has been processed, so the list may be incomplete. Crossref citations are never added to or compared with the OpenAlex citation counts; the two sources have different coverage.

Field ranking

YÖKSİS ?
Keyword rankings 3

Collaboration network

From the author lists of YÖKSİS publication records. Duplicate records of a work count once; institutions are co-authors’ current YÖKSİS affiliations.

Co-authors
19
With an akaturk profile
3
Turkish institutions
2
Co-authored works
%100

Academic co-authors 3

  1. FATİH YILMAZ Profesör · Recep Tayyip Erdoğan Üniversitesi 2
  2. VEYSEL TURAN YILMAZ Profesör · Karadeniz Teknik Üniversitesi 2
  3. YASEMİN ÖZDENER KÖMPE Profesör · Ondokuz Mayıs Üniversitesi same university 1

National collaboration 2 institutions

Within own university1 joint works · Ondokuz Mayıs Üniversitesi

  1. Karadeniz Teknik Üniversitesi 2 works · 1 academics
  2. Recep Tayyip Erdoğan Üniversitesi 2 works · 1 academics

Other co-authors (incl. international) 16

KÜBRA ÖZKUL 7MAHMUT KILINÇ 3NICHOLAS H. MANN 3ORHAN BÜYÜKGÜNGÖR 2ALAA AQSOAYLİN YILMAZDAVID J. SCANLANDJ SCANLANFUNDA ERDEMJULIE NEWMANMEHMET TAHA AYNH MANNSHANTY SUNDARAMVildan AKIN MUTLUW T A HARRISONYASEMİN TOKATLI

Authors without an akaturk profile (international researchers, retired or former academics, students, clinicians) are grouped by name spelling; short forms such as “Gulluce M.” join the single full name they match.

Indexes and citation percentiles

?
TR Index 1 articles
OpenAlex citation percentile
Top 1%0
Top 10%0
Avg · n 10 %42.8
Other counts

Scopus (SJR)

  • YÖKSİS rows 12

WoS (JCR)

  • YÖKSİS rows 12

Articles

Articles with YÖKSİS and OpenAlex source split; narrow by quartile or TR Index.

17articles

Journals with publications

13 journals

Narrow down

Scopus (SJR)
Q12 Q26 Q32 Q42
WoS (JCR)
Q12 Q23 Q33 Q44
TR Index
1articles

Article list

  1. 2022 METAGENOMIC ANALYSIS OF THE TOXIN PRODUCING CYANOBACTERIAL COMMUNITY OF AKGOL LAKE IN TERME SAMSUN TURKEY FRESENIUS ENVIRONMENTAL BULLETIN DOI https://www.prt-parlar.de/download_feb_2022/ YÖKSİS SJR Q4 JCR Q4
  2. 2022 Investigations on isolation and characterisation of unicellular cyanobacteria in Uzun Lake and Cernek Lake, Samsun, Türkiye Ordu University Journal of Science and Technology DOI 10.54370/ordubtd.1205725 YÖKSİS OpenAlex 8.6%
  3. 2021 Symbiotic propagation of the wet meadow orchid Anacamptis laxiflora for conservation and reintroduction FRESENIUS ENVIRONMENTAL BULLETIN DOI https://www.prt-parlar.de/download_feb_2021/ YÖKSİS SJR Q4 JCR Q4
  4. 2019 Effect of cysteine/serine changes to glucose-6-phosphate dehydrogenase of Synechocystis sp.PCC6803 in cell-free extracts EUROPEAN JOURNAL OF PHYCOLOGY DOI 10.1080/09670262.2019.1620343 YÖKSİS SJR Q1 JCR Q1 OpenAlex 5.4%
  5. 2016 Measurement of Glucose 6 phosphate Dehydrogenase Activity in Bacterial Cell free Extracts BIO-PROTOCOL DOI 10.21769/BioProtoc.1949 YÖKSİS SJR Q2 JCR Q3 OpenAlex 8.6%
  6. 2015 Characterisation of an opcA Mutant of the Unicellular Cyanobacterium Synechocystis sp PCC 6803 Current Microbiology DOI 10.1007/s00284-015-0889-4 YÖKSİS OpenAlex 85.7%
  7. 2014 An Investigation on the Bacterial Contents of Natural Springs in a Rural Area of the Middle Blacksea Region in Turkey Applied Ecology and Environmental Sciences DOI 10.12691/aees-2-5-3 YÖKSİS OpenAlex 70.2%
  8. 2013 Analysis of Glucose 6 phosphate Dehydrogenase of the Cyanobacterium Synechococcus sp PCC7942 in the zwf Mutant Escherichia coli DF214 cells Annals of Microbiology DOI DOI: 10.1007/s13213-012-0591-8 YÖKSİS SJR Q3 JCR Q4 OpenAlex 52.9%
  9. 2008 A Dzwf glucose 6 phosphate dehydrogenase mutant of the cyanobacterium Synechocystis sp PCC 6803 exhibits unimpaired dark viability Annals of Microbiology DOI https://annalsmicrobiology.biomedcentral.com/articles/10.1007/BF03175330 YÖKSİS SJR Q3 JCR Q4
  10. 2008 Mutagenesis of the tal gene encoding transaldolase in the cyanobacterium Anabaena sp PCC7120 Turk. J. of Biology DOI http://journals.tubitak.gov.tr/biology/issues/biy-08-32-2/biy-32-2-10-0711-9.pdf YÖKSİS TR Index SJR Q2 JCR Q3
  11. 2008 5 5 diethylbarbiturate complexes of silver with 2 2 bipyridine and 3 2 pyridyl propanol syntheses crystal structures spectroscopic thermal and antimicrobial activity studies Z. Naturforsch. B DOI http://www.znaturforsch.com/rb/s63b0134.pdf YÖKSİS SJR Q2 JCR Q3 OpenAlex 74.7%
  12. 2006 Silver(I)-barbital based frameworks: Syntheses, crystal structures, spectroscopic, thermal and antimicrobial activity studies POLYHEDRON DOI 10.1016/j.poly.2006.04.011 YÖKSİS SJR Q2 JCR Q2 OpenAlex 69.1%
  13. 1998 Multiple oligomeric forms of glucose 6 phosphate dehydrogenase in cyanobacteria and role of OpcA in the assembly process Microbiology SGM DOI https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-144-6-1549 YÖKSİS SJR Q1 JCR Q1
  14. 1996 Çambaşı Yaylası Ordu ve çevresinin subalpin ve alpin bölgesinin florası Doğa Tr. Journal of Botany YÖKSİS SJR Q2 JCR Q2 OpenAlex 5.2%
  15. 1995 A comparison of gene organisation in the zwf region of the genomes of the cyanobacteria Synechococcus sp PCC 7942 and Anabaena sp PCC 7120 FEMS Microbiology Letters DOI 10.1016/0378-1097(95)00369-G YÖKSİS SJR Q2 JCR Q2 OpenAlex 47.3%
  16. 1992 Çambaşı Yaylası Ordu nın subalpin ve alpin vejetasyonu üzerine fitososyolojik bir araştırma Doğa Tr. Journal of Botany YÖKSİS
  17. 1992 Çambaşı Yaylası Ordu ve çevresinden yeni floristik kayıtlar Doğa Tr. Journal of Botany YÖKSİS

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