• Türkçe
    • English
  • English 
    • Türkçe
    • English
  • Login
Search 
  •   RTEÜ
  • Fakülteler
  • Fen Edebiyat Fakültesi
  • FEF, Biyoloji Bölümü Koleksiyonu
  • Search
  •   RTEÜ
  • Fakülteler
  • Fen Edebiyat Fakültesi
  • FEF, Biyoloji Bölümü Koleksiyonu
  • Search
JavaScript is disabled for your browser. Some features of this site may not work without it.

Search

Show Advanced FiltersHide Advanced Filters

Filters

Use filters to refine the search results.

Now showing items 1-10 of 563

  • Sort Options:
  • Relevance
  • Title Asc
  • Title Desc
  • Issue Date Asc
  • Issue Date Desc
  • Results Per Page:
  • 5
  • 10
  • 20
  • 40
  • 60
  • 80
  • 100
Thumbnail

Synthesis, characterization and cyclization reactions of some new bisthiosemicarbazones 

Er, Mustafa; Ünver, Yasemin; Sancak, Kemal; Değirmencioğlu, İsmail; Karaoğlu, Şengül Alpay (Arkat, 2009)
The reaction of trans-1, 4-dichloro-2-butene 1 with selected phenols affords (E)-1, 4-bis(aryloxy)-2-butenes 2a-d which are converted into bis-thiosemicarbazones 3a-h via the reactions with thiosemicarbazide and 4-methyl ...
Thumbnail

Chemical composition and antimicrobial activity of essential oils from Centaurea appendicigera and Centaurea helenioides 

Yaylı, Nurettin; Yaşar, Ahmet; Yaylı, Nuran; Albay, Canan; Aşamaz, Yaprak; Coşkunçelebi, Kamil; Karaoğlu, Şengül (Taylor & Francis LTD., 2009)
The chemical components and antimicrobial activity of the essential oils from Centaurea appendicigera C. Koch and Centaurea helenioides Boiss, two different endemic members of the genus Centaurea L. (Asteraceae), were ...
Thumbnail

Chemical constituents and antimicrobial activities of the essential oils from Sedum pallidum var. bithynicum and S. spurium grown in Turkey 

Yaylı, Nuretin; Yaşar, Ahmet; İskender, Nagihan Yılmaz; Yaylı, Nuran; Cansu, Tayyibe Beyza; Coşkunçelebi, Kamil; Karaoğlu, Şengül Alpay (Taylor&Francis LTD., 2010)
Chemical compositions of the essential oil of Sedum pallidum Bieb. var. bithynicum (Boiss.) and S. spurium Bieb. (Crassulaceae) from Turkey were investigated by GC-MS, and antimicrobial activity of the oil samples were ...
Thumbnail

Synthesis and antimicrobial activities of some new 1,2,4-triazole derivatives 

Bektaş, Hakan; Karaali, Nesrin; Şahin, Deniz; Demirbaş, Ahmet; Karaoğlu, Şengül Alpay; Demirbaş, Neslihan (MDPI, 2010)
Some novel 4,5-disubstituted-2,4-dihydro-3H-1,2,4-triazol-3-one (3, 6, 8, 9) derivatives and or 3-(4-methylphenyl)[1,2,4]triazolo[3,4-b][1,3]benzoxazole (5) were synthesized from the reaction of various ester ethoxycarbo ...
Thumbnail

Foliar N and P resorption and nutrient (N, P, C, and S) contents of Vaccinium arctostaphylos L. and Vaccinium myrtillus L. from East Black Sea region of Turkey 

Bilgin, Ali; Zeren, Yasemin; İzmirli, Şule Güzel (2016)
Phosphorus (P), nitrogen (N), carbon (C), and sulfur (S) contents of the leaves and specific leaf area (SLA), leaf mass per area (LMA), and N and P resorption were researched in Vaccinium arctostaphylos L. and Vaccinium ...
Thumbnail

Nationwide study of Escherichia coli producing extended-spectrum beta-lactamases TEM, SHV and CTX-M in Turkey 

Çiçek, Ayşegül Çopur; Saral, Ayşegül; Düzgün, Azer Özad; Yaşar, Ekrem; Çizmeci, Zeynep; Balcı, Pervin Özlem; Sarı, Fatma; Fırat, Mehmet; Altıntop, Yasemin Ay; Ak, Sibel; Çalışkan, Ahmet; Yıldız, Nazan; Sancaktar, Metin; Budak, Emine Esra; Ertürk, Ayşe; Özgüm, Osman Birol; Sandallı, Cemal (Nature Publishing Group, 2013)
Four hundred and forty extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli isolates were collected from 10 different hospitals in Turkey between 2011 and 2012. Clinical specimens consisted of urine (80.45%), ...
Thumbnail

Cloning, expression, and characterization of a novel CTP synthase gene from Anoxybacillus gonensis G2 

Sandallı, Cemal; Saral, Ayşegül; Ülker, Serdar; Karaoğlu, Hakan; Beldüz, Ali Osman; Çiçek, Ayşegül Çopur (2014)
The cytidine-5'-triphosphate (CTP) synthase (EC 6.4.3.2) gene (pyrG) was cloned and sequenced from the thermophilic bacterium Anoxybacillus gonensis G2 (Ago). The gene is 1590 bp in length and encodes a protein of 530 amino ...
Thumbnail

Composition of the essential oil of Salvia montbretii Benth. from Turkey 

Abak, Fatma; Yıldız, Gülsüm; Atamov, Vagif; Kürkçüoğlu, Mine (2018)
The composition of the essential oil produced from aerial parts of Salvia montbretii Benth.(Lamiaceae), was analyzed by GC and GC-MS. Forty-six compounds constituting about 97.7% of the essential oil were characterized.The ...
Thumbnail

Tragopogon abbreviatus (Asteraceae): a little-known species inferred from morphological and molecular analysis 

Coskunçelebı, Kamil; Gültepe, Mutlu; Güzel, Murat Erdem; Makbul, Serdar (2020)
Tragopogon porrifolius occurs in Turkey with 3 taxonomically confused subspecies: T. porrifolius subsp. eriospermus, T. porrifolius subsp. longirostris, and T. porrifolius subsp. abbreviatus. In the present paper, T. ...
Thumbnail

Synthesis and biological evaluation of a new series of 4-alkoxy-2-arylquinoline derivatives as potential antituberculosis agents 

Tosun, Gonca; Arslan, Tayfun; İskefiyeli, Zeynep; Küçük, Murat; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2015)
Three new series of 33 quinolone compounds, 2-(2-, 3-, and 4-fluorophenyl)-4-O-alkyl(C5−15) quinolines (7a– k, 8a–k, and 9a–k), were synthesized from 2-(2-, 3-, and 4-fluorophenyl)-2,3-dihydroquinolin-4(1H )-one (4, ...
  • 1
  • 2
  • 3
  • 4
  • . . .
  • 57



DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsTypeLanguageDepartmentCategoryPublisherAccess TypeInstitution AuthorThis CollectionBy Issue DateAuthorsTitlesSubjectsTypeLanguageDepartmentCategoryPublisherAccess TypeInstitution Author

My Account

LoginRegister

Discover

AuthorKaraoğlu, Şengül Alpay (145)Yaylı, Nurettin (55)Gül, Serkan (51)Makbul, Serdar (49)Bozdeveci, Arif (44)Coşkunçelebi, Kamil (39)Sandallı, Cemal (39)Altunışık, Abdullah (37)Özdemir, Nurhayat (37)Pehlivan, Necla (34)... View MoreSubjectAntimicrobial activity (78)Turkey (44)Skeletochronology (25)Anatolia (22)GC-MS (21)Essential oil (19)Antimicrobial (18)1,2,4-Triazole (17)Antioxidant (17)Age structure (16)... View MorePublication Typearticle (542)conferenceObject (9)bookPart (2)editorial (2)letter (2)... View MoreLanguage
eng (563)
Publication CategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı (531)Makale - Ulusal Hakemli Dergi - Kurum Öğretim Eleman (10)Diğer (7)Konferans Öğesi - Uluslararası - Kurum Öğretim Elemanı (7)Makale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı (3)... View MoreAccess Typeinfo:eu-repo/semantics/closedAccess (315)info:eu-repo/semantics/openAccess (245)info:eu-repo/semantics/copenAccess (1)info:eu-repo/semantics/embargoedAccess (1)info:eu-repo/semantics/OPENAccess (1)Date Issued2020 - 2025 (232)2010 - 2019 (293)2006 - 2009 (38)Has File(s)Yes (508)No (55)

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 


|| Guide|| Instruction || Library || Recep Tayyip Erdoğan University || OAI-PMH ||

Recep Tayyip Erdoğan University, Rize, Turkey
If you find any errors in content, please contact:

Creative Commons License
Recep Tayyip Erdoğan University Institutional Repository is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License..

DSpace@RTEÜ:


DSpace 6.2

tarafından İdeal DSpace hizmetleri çerçevesinde özelleştirilerek kurulmuştur.