Sürdürülebilir Kalkınma Amaçları

  • MakaleAçık Erişim2026
    Pohlia wahlenbergii (Bryophyta)’nin Biyoaktif Potansiyeli: Antioksidan, Antidiyabetik ve Antimikrobiyal Aktiviteleri

    Alataş, Mevlüt; Erdem, Belgin; Çöteli, Ebru

    Briyofitler, biyolojik aktiviteleri yeterince incelenmemiş önemli bir bitki grubunu oluşturmaktadır. Yapılarındaki çok sayıda biyoaktif bileşik, onları önemli kılmaktadır. Bu çalışmada, Pohlia wahlenbergii karayosununun aseton ve metanol özütlerinin in vitro antioksidan, antidiyabetik ve antimikrobiyal aktiviteleri değerlendirilmiştir. Antioksidan aktivitenin belirlenmesinde, bu özütlerin iki farklı radikale, DPPH. ve ABTS.+'ya karşı inhibitör güçleri ölçülmüştür. Sonuçlar, standart askorbik asit sonuçlarıyla karşılaştırıldı. Ayrıca bu ekstraktların antidiyabetik aktivitesini belirlemek için, α-amilaz enzim inhibisyonu ölçüldü. Sonuçları karşılaştırmak için akarboz ilacı kullanıldı. En yüksek DPPH. ve ABTS.+ radikal temizleme aktivitesi sırasıyla 1.509 ve 1.301 mg/mL IC₅₀ değerleriyle aseton ekstraktında gözlendi. ABTS.⁺ radikal temizleme aktivitesinin daha güçlü olduğu bulundu. Antidiyabetik aktivitenin belirlenmesinde, α-amilaz enzim inhibisyonu kullanıldı ve metanol ekstraktında en yüksek seviyede olduğu görüldü (1.792 mg/mL). Ekstraktların antioksidan ve antidiyabetik aktivitelere sahip olduğu belirlendi. Ayrıca, Pohlia wahlenbergii'den elde edilen özütlerin çeşitli patojen mikroorganizmalara karşı in vitro antimikrobiyal potansiyeli değerlendirilmiştir. Sonuçlar, güçlü antifungal aktivite göstermiştir; aseton özütü, standart ilaç Flukonazol'den daha iyi performans göstererek Candida albicans'a karşı 25 mm'lik bir inhibisyon bölgesi ve 16 µg/mL'lik bir MIC sergilemiştir. Metanol özütü de geniş spektrumlu antibakteriyel etkiler göstermiş, özellikle Bacillus cereus ve Salmonella typhimurium'a karşı 20 mm'lik bir inhibisyon bölgesi göstermiştir. Pohlia wahlenbergii'nin seçici antimikrobiyal özellikleri, yeni doğal antibiyotikler ve antifungal ajanlar geliştirmek için potansiyel bir kaynak olduğunu göstermektedir.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleYayıncıda açık erişim2026Scopus SJRQ1
    Phenolic Profiling of Some Bryophyte Species: In Vitro and In Silico Assessment of Their Antimicrobial Potentials

    Çambay, Zafer; Uslu, Harun; Coteli, Ebru; Göktaş, Bünyamin; Özdemir Bayçinar, Kevser; Emre, Mustafa Yunus; Güngören, Muhammed; Alataş, Mevlüt

    This study explores the phytochemical composition and antimicrobial potential of Palustriella commutata, Philonotis calcarea, Cinclidotus riparius, Rhynchostegium riparioides, Plagiomnium ellipticum, and Porella platyphylla, with a focus on bryophyte species phenolic constituents and biological activities. HPLC analysis identified seven phenolic acids (4-hydroxybenzoic acid, 2,5-dihydroxybenzoic acid, 3,4-dihydroxybenzoic acid, caffeic acid, vanillic acid, syringic acid, and p-coumaric acid) across all species in varying concentrations. In in vitro antimicrobial tests, the bryophyte extracts used showed significant activity against Pseudomonas aeruginosa (ATCC 9027), while exhibiting relatively lower inhibition against Staphylococcus aureus (ATCC 25923). The study showed that all species extracts exhibited comparable activity to erythromycin against P. aeruginosa, while Cinclidotus riparius and Plagiomnium ellipticum extracts showed no activity against S. aureus, and the remaining species exhibited lower activity compared to erythromycin. Molecular docking studies demonstrated strong binding affinities of these phenolics to the active site of the target macromolecule (PDB ID: 3FRQ), suggesting meaningful interactions with residues such as ARG122 and ASN123, similar to erythromycin binding patterns. The findings indicate that bryophyte-derived phenolic compounds possess significant antimicrobial potential and may serve as promising candidates for the development of novel bioactive agents. This study provides a broad framework for the insufficiently researched antimicrobial potential of bryophytes by establishing direct links between species-specific phenolic fingerprints, experimentally observed antibacterial activities, and predicted receptor-level interactions. Further complementary biological studies are needed to confirm and expand upon these results.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleAçık Erişim2025
    The new locality records of Scorpidium cossonii and Cyrtomnium hymenophylloides (Bryophyta) for Türkiye and Southwest Asia from the Bolkar Mountains

    Alataş, Mevlüt; Batan, Nevzat; Uygur, Ahmet; Ezer, Tülay; Aslan, Züleyha

    The new locality records of Scorpidium cossonii and Cyrtomnium hymenophylloides (Bryophyta) for Türkiye and Southwest Asia from the Bolkar Mountains Tülay EZER 1, Ahmet UYGUR2, Züleyha ASLAN ERGENEKON3, Mevlüt ALATAŞ4, Nevzat BATAN5 ORCID: 0000-0002-6485-5505; 0000-0002-3934-8851; 0000-0002-5078-2317; 0000-0003-0862-0258; 0000-0001-8456-5719 1Niğde Ömer Halisdemir University, Faculty of Architecture, Department of Landscape Architecture, 51240, Niğde, Türkiye 2Aksaray University, Sabire Yazıcı Faculty of Science and Letters, Department of Biology, 68100, Aksaray, Türkiye 3Atatürk University, Faculty of Science, Department of Biology, 25240, Erzurum, Türkiye 4Munzur University, Vocational School of Tunceli, Department of Plant and Animal Production, 62000, Tunceli, Türkiye 5Karadeniz Technical University, Faculty of Science, Molecular Biology and Genetics, 61080, Trabzon, Türkiye Abstract During bryological land study to the Bolkar Mountains, wetland moss Scorpidium cossonii (Schimp.) Hedenäs, previously known only from Çanakkale, and the arctic-alpine moss Cyrtomnium hymenophylloides (Hübener) T.J.Kop., previously known only from Ordu province, were rediscovered in Türkiye. Scorpidium cossonii was collected on wet rocky bank near the Ciğer Lake (Çan-Çanakkale) in 2014. Cyrtomnium hymenophylloides was collected on wet soil in Kalıcak and Kadıncık Villages (Ulubey-Ordu) in 2014. Ten years later, both species were found the vicinity of Karagöl and Çiniligöl (Ulukışla-Niğde), glacial lakes located in the Central Anatolian part of the Bolkar Mountains. Scorpidium cossonii and Cyrtomnium hymenophylloides were recorded for the second time from Türkiye and Southwest Asia with the present study. While, Scorpidium cossonii is characterised by strongly curved non-plicate leaves and well developed hyalodermis, Cyrtomnium hymenophylloides is characterised erect tuft life form, broadly ovate leaves, acute to apiculate leaf apices. These new locality records will provide important information about the geographical distribution of the both species in Anatolia and will contribute to the bryophyte flora of Türkiye. Keywords: Bolkar Mountains, Central Anatolia, moss, new locality, Türkiye

    AtıfOpenAlex1
    TR Dizinİncele
  • MakaleYalnız künye2025Scopus SJRQ2
    Two new moss records for Turkey and Southwest Asia

    Ezer, Tülay; Aslan Ergenekon, Züleyha; Uygur, Ahmet; Keskin, Ali; Alataş, Mevlüt; Batan, Nevzat

    Hymenoloma mulahaceni and Mnium blyttii found as new to Turkey following a recent bryological excursion to the Bolkar Mountains (Taurus Mountain range) in Turkey. Also, this is the first record of the Mnium blyttii from Southwest Asia. Illustrations, geographic distributions, ecological characteristics, identification keys and comparisons with morphologically similar taxa are given.

  • MakaleYalnız künye2025Scopus SJRQ3
    The Epiphytic Bryophyte Vegetation of the Karçal Mountains (Artvin, Türkiye)

    Batan, Nevzat; Özcan, Osman; Ezer, Tülay; Erata, Hüseyin; Alataş, Mevlüt

    Abstract: In this study, the epiphytic bryophyte vegetation of the Karçal Mountains (Artvin) in the Caucasus Region was investigated. Relevés collected from living tree trunks during various vegetation periods in 2022 were analyzed using the Braun-Blanquet method and multivariate analysis techniques. As a result, Anomodontetum attenuati-Ulotetosum crispae subass. nov. was described and characterised as a new epiphytic syntaxa. In addition, Orthotrichetum rupestris, Orthotrichetum speciosi, Uloto crispae-Orthotrichetum striati, and Anomodonto viticulosi-Leucodontetum sciuroidis-Anomodontetosum attenuati were determined for the first time in Türkiye. All syntaxa were presented by analyzing them in terms of their ecological and floristical classifications.

    AtıfScopus1
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2025Scopus SJRQ3
    Three Remarkable Moss Species New to Türkiye and Southwest Asia; [Trois espèces remarquables de mousses inédites en Turquie et en Asie du Sud-Ouest]

    Erata, Hüseyin; Batan, Nevzat; Alataş, Mevlüt; Ezer, Tülay

    Iwatsukiella leucotricha (Mitt.) Buck & Crum., Andreaea alpestris (Thed.) Schimp., and Andreaea mutabilis Hook.f. & Wilson are newly recorded in Türkiye and Southwest Asia, following a recent bryological survey in the Artvin region. Additionally, the genus Iwatsukiella W.R.Buck & H.A.Crum. has been introduced as a new record for Türkiye's bryophyte flora. This study provides brief descriptions, illustrations, and data on the geographic distribution and ecological preferences of these species, along with comparisons to morphologically similar species.

    AtıfOpenAlex4
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2024
    The Moss Flora of Fırat University Central Campus (Elazığ-Türkiye)

    Alataş, Mevlüt; Şahin, Harun; Çambay, Zafer

    In this study, the moss flora of Fırat University Central Campus was investigated. As a result of the identification of moss specimens collected from syudy area in different vegetation periods of 2021 and 2023, total of 37 taxa belonging to 8 families and 19 genera were determined. From these taxa, 11 for Elazıg province and 6 for B9 grid square according to the grid-square system of Henderson (1961) are new records. The rich families in terms of number of taxa are Pottiaceae (17), Bryaceae (6) and Orthotrichaceae (5). In addition, the most taxa within the floristic list are xerophyt, photophyt and subneutrophyt.

    AtıfOpenAlex3TR Dizin4
    TR Dizinİncele
  • MakaleYalnız künye2024
    Antioxidant Activity and Some Chemical Composition of Polytrichum piliferum Hedw. Extracts

    Alataş, Mevlüt; Sahilli, Yeliz Cakir

    In this study, antioxidant, fatty acid, mineral analysis and some chemical properties of Polytrichum piliferum, a species of moss, were investigated. As a result of the research, it was determined that P. piliferum extract had a moderate effect in terms of antioxidant properties and total phenolic content. Regarding fatty acid compositions, oleic and palmitic acids were found to be high. As a result of mineral analysis, it was found that it could accumulate high levels of aluminum (Al), iron (Fe), calcium (Ca) and potassium (K).

    AtıfTR Dizin2
    TR Dizinİncele
  • MakaleAçık Erişim2024
    Karçal Dağları Briyofit Florası (Artvin, Türkiye)

    Özcan, Osman; Ezer, Tülay; Batan, Nevzat; Alataş, Mevlüt; Erata, Hüseyin; Taşcı, Nurtaç

    Karçal Dağlarının briyofit çeşitliliğinin ortaya çıkarılması amacıyla araştırma alanından 27.05.2022 ve 08.03.2024 tarihleri arasında 178 istasyondan ±7500 briyofit örneği toplanmıştır. Briyofit örneklerinin teşhis edilmesi sonucunda toplam 513 Briyofit taksonu (87 familya ve 192 cinse ait 2 Boynuzotu, 90 Ciğerotu ve 421 Karayosunu) tanımlanmıştır. Teşhis edilenler taksonlar arasında ciğerotlarından Scapania calcicola (Arnell & J.Perss.) Ingham, S. cuspiduligera (Nees) Müll. Frib, karayosunlarından ise Amphidium lapponicum (Hedw.) Schimp, Dicranum transsylvanicum Lüth, Schistidium lancifolium (Kindb.) H.H.Blom, Pohlia filum (Schimp.) Mårtensson, Orthotrichum crenulatum Mitt, Zygodon dentatus (Limpr.) Kartt ve Platyhpnum molle (Dicks. ex Hedw.) Loeske taksonları Türkiye’den ikinci kez kaydedilmiştir. Ayrıca bu çalışmada, 152 briyofit taksonun (2 boynuzotu taksonu, 50 ciğerotu taksonu ve 100 karayosunu taksonu) Artvin ili'nden ilk kez kaydı verilmiştir.

    AtıfOpenAlex2TR Dizin2
    TR Dizinİncele
  • MakaleAçık Erişim2024
    Mnium hornum ve Mnium lycopodioides Türlerinin Biyoaktif Bileşikleri ve Antioksidan Kapasiteleri

    Alataş, Mevlüt; Sahilli, Yeliz Cakir

    En eski karasal bitkiler olan briyofitler, biyoaktif bileşikleri ve terapötik potansiyelleri açısından tohumlu bitkilere göre nispeten daha az incelenmişlerdir. Bu çalışmada, akrokarp karayosunlarından Mnium hornum Hedw. ve Mnium lycopodioides Schwägr türlerinin biyoaktif bileşikleri (toplam fenolik ve flavonoid içeriği, askorbik asit içeriği, karotenoid içeriği, nitrik oksit süpürme ve deoksiriboz bozunma aktivitesi) ve antioksidan kapasiteleri (ferrik indirgeyici/antioksidan güç) araştırılmıştır. Araştırma sonucunda, önemli miktarda toplam flavonoid ve fenolik içerdiği belirlenen türler, potansiyel antioksidan ajanlar olarak öngörülmüştür.

    • SDG 2 · Açlığa Son
  • MakaleAçık Erişim2024Scopus SJRQ3
    Four bryophyte species new to Türkiye and South-West Asia

    Batan, Nevzat; Taşçi, Nurtaç; Mamontov, Yuriy S.; Erata, Hüseyin; Alataş, Mevlüt; Ezer, Tülay

    Scapania praetervisa, Scapania mucronata, Solenostoma confertissimum, and Platyhypnum alpinum found as new to Türkiye following a recent bryofloristic excursion in Artvin region (Caucasian part of Türkiye). Platyhypnum alpinum is also new to Asia. Descriptions, illustrations, distributions, habitat characteristics, and comparisons with morphologically similar taxa are briefly given.

    AtıfScopus2OpenAlex7
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2024Scopus SJRQ3
    European endemic Ptychostomum minii (Bryaceae, Bryophyta) - new to Turkey and its significant range extention to SW Asia

    Ezer, Tülay; Uygur, Ahmet; Keskin, Ali; Çulha, Harun; Batan, Nevzat; Alataş, Mevlüt

    In this study, Ptychostomum minii, a European endemic species is recorded for the first time in Turkey and Southwest Asia. The species was found in the Bolkar Mountains in Turkey. Insights into recent discoveries, along with accompanying photographs, ecology, and location specifics in Turkey are presented.

    AtıfScopus1WoS1OpenAlex5
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2023
    Updated Checklist of Turkish Bryophyte Vegetation

    Alataş, Mevlüt; Batan, Nevzat; Erata, Hüseyin; Ezer, Tülay

    In this study, we present a current list of syntaxa belonging to the bryophyte vegetation of Türkiye. This checklist was compiled from the national and local literature, and includes all syntaxonomic units of bryophyte vegetation that have been newly described or reported for Türkiye to date. To date, 56 associations and 29 sub-associations belonging to 21 alliances, 14 orders, and 9 classes have been reported in Türkiye, bryosociologically. In addition, 26 phytosociological units were determined as unknown status. In the present study, syntaxonomical units were grouped according to their habitat type (aquatic, terrestrial, saxicolous, or epiphytic) and were given with their localities and synonyms.

    AtıfOpenAlex4TR Dizin2
    TR Dizinİncele
  • MakaleAçık Erişim2023
    Kentsel Alandaki Epifitik Briyofit Birliği Orthotrichetum pumili Üzerine Notlar

    Alataş, Mevlüt; Batan, Nevzat; Erata, Hüseyin; Ezer, Tülay

    Doğu Anadolu Bölgesi ve üniversite kampüs alanlarında ilk kez yapılan bu briyososyolojik çalışmada, Fırat Üniversitesi Merkez Kampüsünde bulunan Ulmus minor ağaçlarının epifitik briyofit vejetasyonu araştırılmıştır. 2021 yılının farklı vejetasyon dönemlerinde, ağaç gövdelerinden alınan örneklik alanların, klasik Braun-Blanquet metodu kullanılarak değerlendirilmesi sonucunda; Orthotrichetum pumili Türkiye’den ikinci kez kaydedilmiştir. Ayrıca, örneklik alanlar içerisinde tespit edilen taksonlardan 3’ü B9 karesi ve Elazığ ili için yenidir. Tespit edilen sintakson, ekolojik ve floristik açıdan analiz edilmiştir.

    AtıfOpenAlex2TR Dizin1
    TR Dizinİncele
  • MakaleAçık Erişim2023
    The Tiny Pleurocarpous Moss Platydictya jungermannioides (Brid.) H. A. Crum in Türkiye

    Alataş, Mevlüt; Batan, Nevzat; Uygur, Ahmet; Ezer, Tülay; Keskin, Ali; Aslan, Züleyha; Çulha, Harun

    In this study, Platydictya jungermannioides, a rare moss species, was recorded for the second time from Türkiye and reported for the third time from Southwest Asia. The present study provides a detailed description of the species, collected from the Bolkar Mountains, along with photographs. Additionally, the ecology and distribution of Platydictya jungermannioides in Türkiye are discussed.

    AtıfOpenAlex2TR Dizin1
    TR Dizinİncele
  • MakaleAçık Erişim2023Scopus SJRQ3
    The epiphytic bryophyte succession of Buxus sempervirens forests in the Fırtına Valley, Rize (North Türkiye)

    Ezer, Tülay; Alataş, Mevlüt; Batan, Nevzat; Erata, Hüseyin

    In this study, the epiphytic bryophyte succession of the Buxus sempervirens L. forests in Fırtına Valley (Çamlıhemşin-Rize, North Türkiye), one of the nine biodiversity hotspots in Türkiye, was investigated. For this pur-pose, a total of 60 sampling plots were taken from the live trunks of B. sempervirens trees of different ages. Twenty-nine epiphytic bryophyte species were determined (24 mosses and 5 liverworts) within the sample plots. Also, six different life form types and four different habitat affinity categories were determined. Among them, the mat type life form is in first place with 34.4% and the cortico-saxicolous species are the most common with 51.7%. Two-way indicator species analysis (TWINSPAN) classified the epiphytic bryophyte communities on B. sempervirens trunks at the second level into two main clusters (A and B) and three sub-clusters (A1, B1 and, B2). Detrended correspondence analysis (DCA) axis 1 was interpreted as gradient along the height of the epiphytic habitat (from the lower base to the upper zone) on trunks and the DCA axis 2 was interpreted as gradient of moisture (from mesic to xeric). Exsertotheca crispa (Hedw.) S. Olsson, Enroth & D. Quandt was the species with the highest index of ecological significance (IES) value on the lower bases of the aged trees. Species diversity and epiphytic cover in the upper zones were lower than in the basal and middle zones in the study area. While Metzgeria furcata, (L.) Corda, Oxyrrhynchium hians (Hedw.) Loeske, Plagiothecium nemorale (Mitt.) A.Jaeger, and Radula lindenbergiana Gottsche ex C.Hartm were only found on old trees, Ctenidium molluscum (Hedw.) Mitt. and Pseudoleskeella nervosa (Brid.) Nyholm were only found on middle-aged trees.

    • SDG 15 · Karasal Yaşam
    AtıfScopus1OpenAlex1
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2023Scopus SJRQ3
    New epiphytic bryophyte communities from Turkey; [Nove zajednice epifitskih briofita iz Turske]

    Alataş, Mevlüt; Erata, Hüseyin; Batan, Nevzat; Ezer, Tülay

    The epiphytic bryophyte vegetation of the Kümbet Plateau (Dereli-Giresun) was investigated. A total of 40 relevés taken from tree trunks in different vegetation periods of the year 2019 were analysed using multivariate analysis methods such as detrended correspondence analysis (DECORANA) and two-way indicator species analysis (TWINSPAN), and the Braun-Blanquet method was also applied. As a result, Frullanio tamarisci-Neckeretum pumilae Alataş, Ezer, Batan & Erata ass. nov. and Frullanio tamarisci-Neckeretum pumilae-isothecietosum alopecuroidis Alataş, Ezer, Batan & Erata subass. nov. were described as new syntaxa from Turkey. In addition, Ulotetum crispae -sanionietosum uncinatae was recorded for the first time from Turkey, while Ulotetum crispae was recorded for the second time from Turkey. These syntaxa were analysed in terms of their ecological and floristic aspects.

    AtıfScopus1OpenAlex1
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2023Scopus SJRQ3
    Two Moss Species New to Turkey and South-West Asia

    Batan, Nevzat; Özcan, Osman; Özen-Öztürk, Öznur; Erata, Hüseyin; Alataş, Mevlüt; Ezer, Tülay

    Abstrat: —Sphagnum russowii and Leptodontium flexifolium found as new to Turkey following a recent bryofloristic foray in Artvin region (Caucasus), from the East Black Sea region of Turkey and Leptodontium is the first record of the genus from Turkey. Descriptions, illustrations, a distribution map, ecological characteristics, and comparisons with morphologically similar taxa were presented.

    AtıfScopus1OpenAlex3
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2023Scopus SJRQ3
    Trematodon and Ptychostomum Species New to Turkey and South-West Asia

    Erata, Hüseyin; Batan, Nevzat; Alataş, Mevlüt; Ezer, Tülay

    Abstract: During the recent bryofloristic studies in the Karçal mountain of the Artvin region (Caucasus), north of Turkey’s East Black Sea region, Trematodon ambiguus and Ptychostomum cyclophyllum were found as new species to Turkey and Southwest Asia. Descriptions, illustrations, new localities, geographic distribution, ecological characteristics, and comparisons with morphologically similar taxa were provided.

    AtıfScopus3OpenAlex8
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2023Scopus SJRQ2
    The Epiphytic Bryophyte Vegetation of Buxus sempervirens L. forests in the Fırtına Valley (Rize, Turkey); [Végétation de bryophytes épiphytes des forêts de Buxus sempervirens L. dans la vallée de Fırtına (Rize, Turquie).]

    Alataş, Mevlüt; Ezer, Tülay; Erata, Hüseyin; Batan, Nevzat; Ursavaş, Serhat

    The Fırtına Valley forests are of the 100 forests in the world whose conservation is a priority due to the natural old forests they have. In this study, the epiphytic bryophyte vegetation of the Buxus sempervirens L. forests located in the Fırtına Valley (Rize, Northern Turkey), which is one of the nine hotspots in Turkey and Turkey’s only boxwood forest, was investigated. The relevés taken from living tree trunks in 2020 were analyzed according to the Braun-Blanquet methodology, and ordinated and classified using the Detrended Correspondence Analysis (DECORANA) and the Two-Way Indicator Species Analysis (TWINSPAN). As a result of the analyses, Exsertotheco crispae-Allenielletum besseri ass. nov. subass. typicum and leucodontetosum sciuroidis subass. nov., and Alleniello besseri-Palamocladietum euchloronis ass. nov. were described and characterized. All syntaxa were presented by analyzing them in terms of their ecological and floristic classifications.

    • SDG 15 · Karasal Yaşam
    AtıfScopus2OpenAlex4
    ScopusWeb of Scienceİncele