WoS İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12514/3595

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2023-2024 Excavations at Boğaziye Höyüğü: a Recently Discovered Mound Settlement in the Upper Khabur Region
(Istanbul Univ, 2025) Gene, Bulent; Sahin, Muaviye; Isik, Senem; Abakay, Ayda; Kaya, Semsihan; Konyar, Erkan; Tan, Armagan
Boğaziye Höyük lies at the northwestern end of the vast and fertile Upper Khabur Region, which stretches along the southern foothills of the Kašiari Mountains. Material culture remains unearthed at the mound by two seasons of excavations (2023-2024) shows significant similarities to assemblages known from other Upper Khabur sites. Our excavations in Trenches BE18-BE17 and BF18 on the northern slope of the mound focused on revealing the stratigraphic sequence in this area. Architectural remains of Building Levels I and II and finds from these contexts in Trench BE18 are dateable to the mid-3rd millennium BC. In Trench BE17, Building Level I also revealed finds that can be dated to the 3rd (especially mid-3rd) millennium BC, and in Trench BF18, ceramic sherds dateable to the 3rd millennium BC were found in Building Level III. This article presents new findings from Boğaziye Höyük and discusses their significance in comparison with the results of surveys and excavations in the Upper Khabur Region, which have continued increasingly since the mid-1930s. We evaluate the significance of Boğaziye Höyük as a regional center within the Upper Khabur basin, and we elucidate its habitation sequence and building levels in the light of our recent excavations. Based on a comparative evaluation of its material culture remains within a regional perspective, we contextualize Boğaziye Höyük in relationship to the cultural horizons of the early and mid-3rd millennium BC in the Upper Khabur Valley.
A Comparison of Native and Syrian Immigrant Women Students' Genital Hygiene Behaviors: A Cross-Sectional Study
(Univ Sao Paolo, 2025) Icke, Sibel; Cifci, Sema
Objective: This study aims to compare the genital hygiene behaviors of native and Syrian immigrant women students. Method: This was cross-sectional research. The sample size of the study was determined via power analysis and G*Power software. A total sample size of 330 individuals was equally distributed to both groups. Sociodemographic Characteristics Questionnaire" and the 'Genital Hygiene Behaviors Scale' were used as data collection tools. Results: There was a significant difference between the mean scores of the scales of both student groups (p < 0.05). The mean scores of native students were found to be higher. The variables "how to clean the genital area", "material used for genital hygiene", "washing method of underwear", "pretoilet hand washing habits" and "regular menstruation" were found to be most effective in terms of the mean scores of the Genital Hygiene Behaviors Scale and its subscales for immigrant students. Conclusion: Social security status and nationality were the most influential sociodemographic factors affecting genital hygiene behaviors. It would be beneficial to raise awareness and promote behavioral changes regarding genital hygiene through seminars, conferences, workshops, and similar events targeting all women university students.
Ability of Cha2ds2-vasc/R2cha2ds2-vasc Scores To Predict Complications Related To Cardiac Implantable Electronic Devices
(Wiley, 2025) Aktan, Adem; Kilic, Raif; Guzel, Hamdullah; Tastan, Ercan; Oksul, Metin; Guzel, Tuncay; Soner, Serdar
BackgroundGlobally, the number of cardiac implantable electronic devices (CIEDs) is increasing. In our study, we aimed to investigate whether CHA(2)DS(2)-VASc and R(2)CHA(2)DS(2)-VASc scores are predictive of CIED-related complications. MethodsOur investigation was carried out with a multicenter retrospective design. Patients who underwent CIED surgery at two cardiac centers in Turkey between January 2011 and May 2023, 1676, were evaluated. The patients were divided into two groups according to their R(2)CHA(2)DS(2)-VASc scores. Patients with R(2)CHA(2)DS(2)-VASc >= 5 were included in group 1 (380 patients), and patients with R(2)CHA(2)DS(2)-VASc < 5 (1296 patients) were included in group 2. The primary outcome was defined as the cumulative events. Each component of cumulative events, such as hematoma, pericardial effusion, pneumothorax, and infection, was also defined as a secondary outcome. ResultsThe study's patient population had an average age of 62.9 +/- 14 years. Pneumothorax (1.8% vs. 1.3%, p = 0.444), pericardial effusion or tamponade (0.35% vs. 0.2%, p = 0.659), and clinically significant hematoma (1.1% vs. 0.6%, p = 0.376) were comparable between the groups. Infection-related devices and cumulative events classified as primary outcomes were higher in the R(2)CHA(2)DS(2)-VASc >= 5 group (6.1% vs. 1.2%, p < 0.001; 7.6% vs. 3.2%, p < 0.001, respectively). Modeling analyses showed that the CHA(2)DS(2)-VASc score and HT were also independent predictors of device-related infection and cumulative events. ConclusionIn the R(2)CHA(2)DS(2)-VASc >= 5 groups, infection related to the device system and cumulative events were higher. Patients with an R(2)CHA(2)DS(2)-VASc score of 5 or more and a high CHA(2)DS(2)-VASc score should be evaluated more carefully regarding infection and cumulative events before and after the operation.
Abnormal Uterine Bleeding in Adolescent Girls Retrospective Study
(Brieflands, 2025) Ozalkak, Servan; Yildirim, Ruken; Karakaya, Amine Aktar; Tas, Funda Feryal; Oncel, Kahraman; Okur, Nurettin; Ozbek, Mehmet Nuri
Background: Abnormal uterine bleeding (AUB) is the most common reason for gynecology-related hospital admissions in adolescence. Objectives: The present single-center study aimed to evaluate the diagnosis distribution in adolescents with AUB and to compare the clinical features and treatments of patients with hemoglobin levels below and above 10 g/dL. Methods: The present single-center study retrospectively collected demographic and epidemiological data from adolescents aged 10 - 18 years presenting to our institution with a diagnosis of AUB. Patient data were extracted from electronic medical records and analyzed using SPSS software. Descriptive statistics, including frequency, percentage, mean, standard deviation (SD), median, and interquartile range (IQR), were calculated. Patients were classified according to hemoglobin levels (< 10 g/dL as group 1 and >= 10 g/dL as group 2). Results: Among 167 adolescent patients, 35.9% had hemoglobin levels below 10 g/dL. Hospitalization rates were significantly higher in group 1 (86.4%) compared to group 2 (2.8%) (P < 0.001). The most common causes of AUB were anovulation (84.4%) and polycystic ovary syndrome (PCOS) (11.4%). The primary treatments included combined oral contraceptives (COCs) with iron supplementation (45.5%) and iron alone (28.7%). Erythrocyte transfusion (ERT) was performed in 18% of cases, predominantly in group 1. This study is limited by the lack of a standardized quality of life assessment tool for AUB. The single-center design and retrospective data collection may limit the generalizability of the findings and introduce selection bias, respectively. Conclusions: Anovulation and PCOS are the main causes of AUB in adolescents. Patients with hemoglobin levels below 10 g/dL and active bleeding should be evaluated carefully, as ERT may be necessary. A wide differential diagnosis should always be considered when managing adolescent AUB.
Abu Ubayd’s Understanding Of Naskh;
(Hitit Univ, 2022) Yasar, Mehmet Aziz; Nas, Taha
In the period when Islamic sciences were formed, a large number ofscholars with absolute ijtihad capacity were trained. One of the scholars mentioned is Abu `Ubayd al- Qasim ibn Sallam al-Khurasani al-Harawi who was educated by many famous scholars of the period, had a great influence on both the scientific and political circles. For this reason, he could not be shared by different sect biographers. As a matter of fact, some Shafi'i tabaqat writers counted Ebu Ubeyd as a follower of Imam Shafii. On the other hand, some Hanbali scholars have mentioned Ebu Ubeyd among the class of Hanbali scholars. However, it was concluded that it would be more correct to see Ebu Ubeyd as an independent mujtahid rather than a follower of any madhhab. For, in his own works, the fact that he refers more to Imam Malik rather than Imam Shafii and Ahmad ibn Hanbal and sometimes refers to the views of Abu Hanifa and Imamey indicates this. Ebu Ubeyd, who came to the forefront with his faqih and muhaddis aspects, had a deep knowledge of the subject of naskh, which has a close relationship with these two sciences, and in this regard, he wrote a rare work called en-Nasih ve'l-mensu. fi'l-kur.ani'l-aziz ve ma fihi mine'l-fera'iz ve's-sunen. While revealing Ebu Ubeyd's understanding of naskh, his work en-Nasi. ve'l-mensu. was used as the main source. In addition to this, his other works related to the subject, especially his work called Kitabu'l- emval, were among the first hand sources that were consulted. It has been tried to determine his approach to naskh based on the statements he made on the subject and the examples he gave in this regard. In this context, Ebu Ubeyd's approach to the nature and framework of naskh and his views on the evidences that can abrogate each other are examined in this study. Ebu Ubeyd discussed the abrogation in a broader sense as "the modification of a shar'i ruling by a later evidence", not the established meaning in the methodology as "removal of a shar'i ruling with a later shar'i proof". In this context, naskh is also used for the allocation of public, the denial of the absolute, the statement of conciseness, the correction of a wrong understanding and the exception made from a general rule. This is known as the understanding of naskh among the companions, tabi`in and early convert scholars. However, although Ebu Ubeyd is at the same age as Imam Shafii and has copied and benefited from his works, it is noteworthy that he preferred the predecessor's approach to the subject rather than the naskh understanding he adopted. It is important to investigate this. He adopted the approach of the public regarding the Shari'a evidences of Ebu Ubeyd that could naskh each other. According to him, the verses of the Qur'an can naskh each other. He gave many examples of this. Another point that draws attention here is to ascribe the concept of naskh used for the verse of the Qur'an by Ebu Ubeyd, from the Lawh-i Mahfuz, in the form of a verse whose recitation is lasting and its meaning is naskhed, and a verse that is removed from people's hearts by canceling both its recitation and used in different meanings. Ebu Ubeyd stated that sunnah can be naskhed with sunnah, without making any distinction between ahad and mutawatir about sunnah and its naskh. However, despite giving many examples of the naskh of the ahad sunnah with its own like, no example has been encountered of the naskh of the ahad sunnah with its own like or with ahad and the ahad sunnah with the mutawatir sunnah. As it can be understood from my statements on the subject, Ebu Ubeyd saw that it is permissible to naskh both mutawatir and ahad sunnah with the Qur'an. However, while there is an example for the naskh of the ahad sunnah with the Qur'an in his related works, there is no example for the other. Although there is no clear statement on the issue that the Qur'an can be naskhed with the sunnah, it is understood from some examples that he gives permission for this.
Acceptance of Diversity, Social Media Use, and Labeling of Refugees in Türkiye: A Mediation Analysis From a Social Work Perspective
(Routledge Journals, Taylor & Francis Ltd, 2025) Aslan, Yavuz; Kocak, Orhan; Kus, Yagmur; Hizmetci, Nimet Sagir
This study examines the relationships between acceptance of diversity, social media use, and the labeling of refugees in T & uuml;rkiye, focusing on the mediating role of social media use. Grounded in Goffman's Labeling Theory and approached from a social work perspective, the study utilized a cross-sectional, correlational design. Data were collected from 431 participants via an online survey. Confirmatory factor analysis and structural equation modeling were employed to analyze the data. The findings revealed that acceptance of diversity was negatively associated with social media use and the labeling of refugees, while social media use was positively associated with refugee labeling. Moreover, social media use mediated the relationship between acceptance of diversity and labeling. These results underscore the dual role of social media as both a space for intercultural communication and a platform for spreading exclusionary narratives. The study contributes to the literature by highlighting the importance of promoting inclusive digital environments. It provides practical implications for developing anti-discriminatory interventions within social work practice and media literacy programs.
Citation - WoS: 6
Citation - Scopus: 11
Activated Carbon-Coated Iron Oxide Magnetic Nanocomposite (ionps@ctac) Loaded With Morin Hydrate for Drug-Delivery Applications
(Frontiers Media Sa, 2024) Dogan, Yusuf; Ozic, Cem; Ertas, Erdal; Baran, Ayse; Rosic, Gvozden; Selakovic, Dragica; Eftekhari, Aziz; 06.02. Department of Plant Protection / Bitki Koruma Bölümü; 06. Faculty of Agricultural Sciences and Technologies in Kızıltepe / Kızıltepe Tarım Bilimleri ve Teknolojileri Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Cancer is a major disease that affects millions of people around the world every year. It affects individuals of all ages, races, and backgrounds. Since drugs used to treat cancer cannot distinguish between cancerous and healthy cells, they cause systemic toxicity along with serious side effects. Recently, controlled drug-release systems have been developed to reduce the side effects caused by anticancer drugs used for treatment. Morin is an anticancer drug with a flavonol structure. It has been extensively researched for its antioxidant, anti-inflammatory, antitumoral, and antibacterial properties, especially found in Chinese herbs and fruits, and its multiple positive effects on different diseases. In this study, a nanocomposite with magnetic properties was synthesized by coating biocompatible activated carbon obtained using the fruits of the Celtis tournefortii plant on the surface of iron oxide magnetic nanoparticles. Characterization of the synthesized activated carbon-coated iron oxide magnetic nanocomposite was confirmed by Fourier transform infrared, scanning electron microscopy, energy-dispersive X-ray spectrometry, X-ray diffraction, dynamic light scattering, zeta potential, and vibrating sample magnetometry. The cytotoxic effects of the drug-loaded magnetic nanocomposite were examined in HT-29 (colorectal), T98-G (glioblastoma) cancer cell lines, and human umbilical vein endothelial cell (HUVEC) healthy cell line. The morin loading and release behavior of the activated carbon-coated iron oxide magnetic nanocomposite were studied, and the results showed that up to 60% of the adsorbed morin was released within 4 h. In summary, activated carbon-coated iron oxide magnetic nanocomposite carriers have shown promising results for the delivery of the morin drug.
Actors: Kurdish National, Religious and Economic Blocs
(I B Tauris & Co Ltd, 2017) Cicek, Cuma; 04.03. Department of Political Science and International Relations / Siyaset Bilimi ve Uluslararası İlişkiler Bölümü; 04. Faculty of Economics and Administrative Sciences / İktisadi ve İdari Bilimler Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
[No Abstract Available]
Acute Cyanide Intoxication Due To Apricot Seed Ingestion
(Soc Argentina Pediatria, 2024) Talay, Mehmet N.; Gungor, Emre; Orhan, Ozhan; Department of Internal Medical Sciences / Dahili Tıp Bilimleri Bölümü; 10. Faculty of Medicine / Tıp Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Introduction : Cyanide poisoning, whether it be accidental or intentional, remains a significant danger to adults and children, especially in societies where agriculture is a primary source of income. We examined the clinical follow-up, complications, and results of cyanide poisoning cases that occurred after eating the pits and seeds of plants containing cyanide glycosides, such as apricot kernels and almonds. Methods : Between 01/01/2017 and 01/08/2022, 14 children aged 1-18 years who were followed up with a prediagnosis of cyanide poisoning in our Paediatric Intensive Care Unit (PICU) were retrospectively analysed. Results : Eight of the patients followed with a preliminary diagnosis of cyanide poisoning were female and six were male. The most common admission month was July (42.8%) coinciding with the agricultural season. The most common symptoms at presentation were weakness and fatigue (n = 7). In the PICU, 4 patients presented lip cyanosis; 3, altered level of consciousness. Vomiting, seizure, headache, dizziness and palpitatons were less frequent. Four patients were treated with hydroxocobalamin (Cyanokit (R) ) as an antidote due to acidosis in their blood gases. All patients treated for cyanide poisoning were discharged. Conclusions : Cyanide poisoning should be considered in paediatric patients with suspicious findings, sudden loss of consciousness, increased anion gap acidosis and lactic acidosis. The history of eating the seeds of plants such as apricot and almonds should be investigated .
Acute Cyanide Poisoning Due To Ingestion of Apricot Seeds
(Soc Argentina Pediatria, 2024) Talay, Mehmet N.; Gungor, Emre; Orhan, Ozhan; Department of Internal Medical Sciences / Dahili Tıp Bilimleri Bölümü; 10. Faculty of Medicine / Tıp Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
[No Abstract Available]
Adaptation of the Vicarious Resilience Scale To Turkish: a Validity and Reliability Study
(Educational Publishing Foundation - American Psychological Assoc, 2025) Topcu, Feyza; Boz, Canahmet; Seneldir Patolo, Ayse; Kitapcioglu, Sureyyanur; Isiker-Bedir, Deniz; Sanyar, Sema
Objective: The 27-item Vicarious Resilience Scale (VRS) is the first tool developed to measure vicarious resilience in mental health professionals working with trauma survivors. Given that the VRS measures the positive impact on therapists resulting from observing the healing process of trauma victims, it is especially significant to evaluate its validity and reliability in Turkish culture. This study aims to adapt the VRS to Turkish and examine its psychometric properties. Method: VRS was adapted and administered via electronic survey to 337 mental health professionals from around the globe working with survivors of severe traumas, such as earthquake survivors. The validity of the VRS was examined using different techniques: confirmatory factor analysis (CFA) and criterion-related validity. Result: CFA yielded seven factors that were consistent with the original form: changes in life goals and perspective, client-inspired hope, increased recognition of clients' spirituality as a therapeutic resource, increased capacity for resourcefulness, increased self-awareness and self-care practices, increased consciousness of power and privilege relative to clients' social location, and increased capacity for remaining present while listening to trauma narratives. The Cronbach's alpha reliability of the VRS was found to be .95; it displayed positive correlations with posttraumatic growth, psychological resilience, and quality of life, indicating convergent validity. However, it had a negative correlation with depression, anxiety, and stress, indicating discriminant validity. Conclusion: The VRS is a valid and reliable measurement scale by professionals working with trauma survivors to aid the recognition and cultivation of vicarious resilience in Turkish mental health professionals.
Adapting To Conflict: Iran's Proxy Warfare Strategy in
(Kafkas University Iibf, 2025) Kazdal, Melıh; 04.03. Department of Political Science and International Relations / Siyaset Bilimi ve Uluslararası İlişkiler Bölümü; 04. Faculty of Economics and Administrative Sciences / İktisadi ve İdari Bilimler Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Bu çalışma İran’ın, Suriye ve Yemen’de vekalet savaşını nasıl kullandığını incelemektedir. Çalışmada vekalet savaşı kavramsal çerçevesi kullanılmış ve sahadaki uygulaması Andrew Mumford’un ortaya koyduğu dörtlü çerçeve olan, insan gücü temini, askeri malzeme temini, finansal yardım ve askeri olmayan yardım üzerinden incelenmiştir. Çalışmada, hem vakalar içindeki hem de vakalar arasındaki durumların incelenmesine olanak tanıyan çoklu vaka analizi yöntemi kullanılmıştır. Bu yaklaşımı kullanarak vakaların benzerliklerini, farklılıklarını ve altında yatan nedenleri ortaya koymak amaçlanmıştır. Suriye ve Yemen’in vaka analizi için seçilmesi, İran’ın bölgedeki vekalet savaşı stratejisinin değerlendirilmesine olanak tanıyan farklı çevresel ve sosyo-politik faktörlere dayanmaktadır. Çalışmanın zaman aralığı Arap Baharı sürecinin başlangıcından sonraki on yılı kapsamakta ve Kasım Süleymani'nin öldürülmesi ile sona ermektedir. Bu çalışma, İran’ın, esnek bir vekalet savaşı stratejisi kullandığını, değişen savaş dinamikleri ve çatışma noktalarına göre yaklaşımını değiştirdiğini göstermektedir.
Citation - WoS: 48
Citation - Scopus: 51
Adolescent Transport and Unintentional Injuries: a Systematic Analysis Using the Global Burden of Disease Study 2019
(Elsevier Sci Ltd, 2022) Peden, Amy E.; Cullen, Patricia; Francis, Kate Louise; Moeller, Holger; Peden, Margaret M.; Ye, Pengpeng; Ivers, Rebecca Q.
Background Globally, transport and unintentional injuries persist as leading preventable causes of mortality and morbidity for adolescents. We sought to report comprehensive trends in injury-related mortality and morbidity for adolescents aged 10-24 years during the past three decades. Methods Using the Global Burden of Disease, Injuries, and Risk Factors 2019 Study, we analysed mortality and disability-adjusted life-years (DALYs) attributed to transport and unintentional injuries for adolescents in 204 countries. Burden is reported in absolute numbers and age-standardised rates per 100 000 population by sex, age group (10-14, 15-19, and 20-24 years), and sociodemographic index (SDI) with 95% uncertainty intervals (UIs). We report percentage changes in deaths and DALYs between 1990 and 2019. Findings In 2019, 369 061 deaths (of which 214337 [58%] were transport related) and 31.1 million DALYs (of which 16.2 million [52%] were transport related) among adolescents aged 10-24 years were caused by transport and unintentional injuries combined. If compared with other causes, transport and unintentional injuries combined accounted for 25% of deaths and 14% of DALYs in 2019, and showed little improvement from 1990 when such injuries accounted for 26% of adolescent deaths and 17% of adolescent DALYs. Throughout adolescence, transport and unintentional injury fatality rates increased by age group. The unintentional injury burden was higher among males than females for all injury types, except for injuries related to fire, heat, and hot substances, or to adverse effects of medical treatment. From 1990 to 2019, global mortality rates declined by 34.4% (from 17.5 to 11.5 per 100 000) for transport injuries, and by 47.7% (from 15.9 to 8.3 per 100000) for unintentional injuries. However, in low-SDI nations the absolute number of deaths increased (by 80.5% to 42 774 for transport injuries and by 39.4% to 31 961 for unintentional injuries). In the high-SDI quintile in 2010-19, the rate per 100 000 of transport injury DALYs was reduced by 16.7%, from 838 in 2010 to 699 in 2019. This was a substantially slower pace of reduction compared with the 48.5% reduction between 1990 and 2010, from 1626 per 100 000 in 1990 to 838 per 100 000 in 2010. Between 2010 and 2019, the rate of unintentional injury DALYs per 100 000 also remained largely unchanged in high-SDI countries (555 in 2010 vs 554 in 2019; 0.2% reduction). The number and rate of adolescent deaths and DALYs owing to environmental heat and cold exposure increased for the high-SDI quintile during 2010-19. Interpretation As other causes of mortality are addressed, inadequate progress in reducing transport and unintentional injury mortality as a proportion of adolescent deaths becomes apparent. The relative shift in the burden of injury from high-SDI countries to low and low-middle-SDI countries necessitates focused action, including global donor, government, and industry investment in injury prevention. The persisting burden of DALYs related to transport and unintentional injuries indicates a need to prioritise innovative measures for the primary prevention of adolescent injury. Copyright (C) 2022 The Author(s). Published by Elsevier Ltd.
Citation - WoS: 17
Citation - Scopus: 18
The Adsorption and Inhibition Efficiency of 2-Amino for Corrosion of Mild Steel in Hydrochloric Acid Solution
(Emerald Group Publishing Ltd, 2023) Okten, Veysi; Yildiz, Resit; Sigircik, Goekmen; 09.03. Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü; 9. Faculty of Health Sciences / Sağlık Bilimleri Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
PurposeThis study aims to prevent mild steel (MS) against corrosion in 0.5 M HCl solution, 2-amino-4-methoxy-6-methyl-1,3,5-triazine was used. The effectiveness of the compound as a corrosion inhibitor was studied via electrochemical, surface and theoretical calculation techniques. Design/methodology/approachFor concentrations ranging from 0.5 to 10.0 mM, almost similar polarization resistances were obtained from electrochemical impedance spectroscopy (EIS) and linear polarization resistance tests. It also investigated inhibitive activity of 2-amino-4-methoxy-6-methyl-1,3,5-triazine on the steel surface using scanning electron and atomic force microscope instruments. Langmuir adsorption is the best matched isotherm for the adsorption of the inhibitor to the steel surface. FindingsEIS method was used to determine inhibition efficiency, which was determined to be 95.7% for 10.0 mM inhibitor containing acid solution. Density functional theory's predictions for quantum chemistry agreed well with the other experimental results. Originality/valueThe methods used in this study are effective and applicable; the used organic inhibitor is 2-amino-4-methoxy-6-methyl-1,3,5-triazine; and protective effectiveness is important, which is crucial for the task of MS corrosion prevention.
Adsorption Behaviors of Malachite Green by Using Crosslinked Chitosan/Polyacrylic Acid/Bentonite Composites with Different Ratios
(Elsevier, 2020) Yildirim, Ayfer; Bulut, Yasemin
In this study, by using different quantities of methylenebisacrylamide (MBA) and acrylic acid (AA), chitosan/polyacrylic acid/bentonite composites (CCS/PAA/BNTs) were synthesized and used for the adsorption of malachite green (MG). The fourier transmission infrared spectra, thermogravimetric analysis-differential thermal analysis and scanning electron microscopy techniques were used to determine synthesized composites. The effects of initial concentration, contact time, temperature and pH were investigated. Kinetic studies indicated that, due to the pseudo-second order model, correlation coefficients (R-2 >0.98) were the best fit thus, by using k(ps), the activation energies (E-a) were calculated (19.06, 15.64, 19.49, 8.29, 24.53 kJmol(-1)). The equilibrium data of MG agreed with the Langmuir model. The highest adsorption capacity calculated was found as 384.62-454.55 mgg(-1) for MG adsorption at 298-318 K. Thermodynamic studies demonstrated that MG adsorption was endothermic, caused spontaneous reaction and increased the entropy between 298-318 K. The adsorption reactions of MG were revealed as physisorption (Delta H<80 kJmol(-1)). The optimum pH was found as 6. The CCS/PAA/BNT2 composite indicated the highest adsorption capacity and best thermal stability compared to the other composites. (C) 2019 Elsevier B.V. All rights reserved.
Citation - WoS: 4
Citation - Scopus: 7
Adsorption Performance of bacillus Licheniformis Sp. Bacteria Isolated From the Soil of the Tigris River on Mercury in Aqueous Solutions
(Taylor & Francis Ltd, 2022) Baran, M. Firat; Yildirim, Ayfer; Acay, Hilal; Keskin, Cumali; Aygun, Husamettin; 09.03. Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü; 21.02. Department of Medical Services and Techniques / Tıbbi Hizmetler ve Teknikleri Bölümü; 9. Faculty of Health Sciences / Sağlık Bilimleri Fakültesi; 21. Vocational School of Health Services / Sağlık Hizmetleri Meslek Yüksekokulu; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Mercury is known to be one of the most toxic heavy metals in the environment and is released into the water systems in significant quantities through natural events and industrial process activities. Many chemical materials are used as adsorbents in the removal of toxic metals from the environment and wastewaters. However, using microorganisms as bio-sorbents instead of chemical materials has become common recently due to their low cost, easy availability and presence in nature. In this study, Bacillus licheniformis in the soil isolated from the Tigris River was used as bio-sorbent. The mercury (Hg(II)) absorption behaviour of Bacillus licheniformis bacteria (BLB) was investigated using inductively coupled plasma mass spectrometry. The effects of equilibrium of adsorption time, temperature, adsorbent dosage and pH on the adsorption of Hg (II) onto BLB were determined. The maximum adsorption capacity of Hg (II) onto BLB was determined as 82.12 mg/g (T = 25 degrees C, pH 5, Co = 50 mg/L, m = 25 mg). The BLB was characterised using Fourier transform infrared spectroscopy analysis, thermal gravimetric analysis/differential thermal analysis, scanning electron microscopy analysis and energy-dispersive X-ray spectroscopy analysis. In addition, pseudo-first-order and pseudo-second-order kinetic models were applied. The equilibrium data for the adsorption of Hg(II) onto BLB were examined by the Langmuir and Freundlich isotherm models. The activation energy was calculated using the pseudo-second-order rate constant. These results suggested the BLB can be used as an efficient adsorbent for the removal of Hg(II) metal ions from wastewater. When the results of bio-sorption studies were examined, it was found that the bio-sorbent could be reused easily. The present study suggests that microorganism bio-sorbents are useful for the efficient removal of mercury from aqueous solutions.
Citation - WoS: 2
Advanced Detection of Retinal Diseases Via Novel Hybrid Deep Learning Approach
(int information & Engineering Technology Assoc, 2023) Aykat, Sukru; Senan, Sibel; 08.01. Department of Computer Engineering / Bilgisayar Mühendisliği Bölümü; 08. Faculty of Engineering and Architecture / Mühendislik Mimarlık Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Diabetic drusen, choroidal neovascularization (CNV), and macular edema (DME) are some retinal diseases that can cause severe blindness and vision loss. Early diagnosis of retinal diseases is vital to prevent this irreversible damage to the eye. The problem statement of this study can be given as presenting new deep learning based results for detecting these retinal diseases. For this purpose, OCT dataset was used to detect CNV, DME and Drusen patients. This data set, which is frequently used in the literature, consists of CNV, DME, Drusen and Normal retina images. RestNet50, InceptionV3, InceptionResnetV2, MobileNet, DenseNet-201, Xception, EfficentNetB4, EfficentNetB7 and EfficentNetV2S models of the CNN architecture were applied to the data set and the performance results of these models were obtained. Then, in order to increase the classification performance of each of these models, hyperparameter tuning was performed by reducing the learning rate by half in each epoch. Later, a hybrid version of the EfficientNetV2S and Xception convolutional neural network models, the most successful of these hyperparameter-tuned models, was developed. The performance analysis results of our proposed hybrid deep learning model are given by comparing them with traditional deep learning models in the literature. These comparison results show that the classification success of the proposed model is higher than the success of traditional deep learning models in the literature. Thus, the proposed hybrid model can shorten the clinical diagnosis time. In addition, the costs of healthcare services can be reduced by intervening in treatable diseases earlier, instead of more costly interventions in the advanced stages of the disease.
Ahmed Anzavur: Soldier, Governor, and Rebel. a Reevaluation of a Late Ottoman Military Man
(Oriental Inst Czech Acad Sci, 2023) Yelbasi, Caner
Following the Russian conquest of the North Caucasus, many Muslims from the region were exiled to the Ottoman Empire from the 1860s onwards. They were settled in different parts of the empire from the Balkans to Anatolia to the Syria and Iraq vilayets. By following this policy, the Ottoman state ensured that many Circassians would become part of the Ottoman army, ruling elites, harems and agricultural workforce. Anzavur Ahmed's family was one of them. Although he did not graduate from military school, he participated in the army during the war in Libya (1911), the Balkan Wars (1912-1913), and the First World War (1914-1918). He was also appointed as the governor of Izmit (1920). Anzavur Ahmet is portrayed as a rebel by Turkish official historiography, but in reality, he was much more than that. He was an Ottoman Governor, and supported by Ottoman administrators such as Damad Ferid and Ali Kemal, who were against the Kuvayi Milliye because they believed that the empire would eventually emerge from the chaotic atmosphere of the post-First World War period and make an agreement with the British. This article argues that although Ahmed Anzavur has been labeled a rebel and a traitor according to the official historiography, it is difficult to use these labels given the circumstances of his time.
Citation - WoS: 2
Citation - Scopus: 2
Air Quality Forecasting Using Machine Learning: Comparative Analysis and Ensemble Strategies for Enhanced Prediction
(Springer Int Publ Ag, 2025) Ozupak, Yildirim; Alpsalaz, Feyyaz; Aslan, Emrah; 08.01. Department of Computer Engineering / Bilgisayar Mühendisliği Bölümü; 08. Faculty of Engineering and Architecture / Mühendislik Mimarlık Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Air pollution poses a critical challenge to environmental sustainability, public health, and urban planning. Accurate air quality prediction is essential for devising effective management strategies and early warning systems. This study utilized a dataset comprising hourly measurements of pollutants such as PM2.5, NOx, CO, and benzene, sourced from five metal oxide sensors and a certified analyzer in a polluted urban area, totaling 9,357 records collected over one year (March 2004-February 2005) from the Kaggle Air Quality Data Set. A comprehensive comparison of ten machine learning regression models XGBoost, LightGBM, Random Forest, Gradient Boosting, CatBoost, Support Vector Regression (SVR) with Bayesian Optimization, Decision Tree, K-Nearest Neighbors (KNN), Elastic Net, and Bayesian Ridge was conducted. Model performance was enhanced through Bayesian optimization and randomized cross-validation, with stacking employed to leverage the strengths of base models. Experimental results showed that hyperparameter optimization and ensemble strategies significantly improved accuracy, with the SVR model optimized via Bayesian optimization achieving the highest performance: an R2 score of 99.94%, MAE of 0.0120, and MSE of 0.0005. These findings underscore the methodology's efficacy in precisely capturing the spatial and temporal dynamics of air pollution.
Al-Ikhwan Al-Safa' On The Ethical Dimensions Of Art: An Analysis On Music
(Ilahiyat Bilimleri Arastirma Vakfi, 2018) Kilic, Muhammet Fatih; 02.06. Department of Philosophy / Felsefe Bölümü; 02. Faculty of Letters / Edebiyat Fakültesi; 01. Mardin Artuklu University / Mardin Artuklu Üniversitesi
Since Ancient Geek philosophy, one of the most fundamental problems of the aesthetics has been the relationship between ethics and aesthetics. At the beginning of the questions that determine the nature of this relationship is the question of whether an object which is subjected to the judgment of beauty should have an ethically related content. Until modern times, this question has been answered to the point that, an object which is subjected to the judgment of beauty must also bear an ethical value. This answer states that in order to qualify an object or thing as beautiful in aesthetic sense, it should be connected to the good in ethical sense. From Ancient Greek philosophy to Islamic thought, we can clearly see the ideas and theories about this close relationship between ethics and aesthetics. This study aims to reveal the integrity between ethics and aesthetics in the philosophy of the al-Ikhwan al-Safa', a group of philosophers living in Basra and its environs during 4th/10th century, through the art of music. For this purpose, it is discussed in this article how music influences on human morality in their philosophy. The relationship between music and morality could be established in two ways in the philosophy of the al-Ikhwan: metaphysical and physical ways. When they connect music to metaphysics, they argue that music is a door to metaphysics, unlike the other arts. They refer to the strong effect of music in the human soul when they compare it with the other arts. As an auditory art, music has a richness of meaning that transcends the boundaries of the physical world and language. Through the sense of sight, one knows only what is at his side, but through the sense of hearing he may know the metaphysical truths that transcend time-space dimensions. As an art based on the sense of hearing, music can convey metaphysical truths to the audience differently from the other arts based on the sense of sight. Accordingly, music is a door for humans to direct them to the metaphysical truths and to enrich their morality. The al-Ikhwan al-Safa' assert that music has a divine and prophetic sources. These sources render it in relation to the wisdom. This thought about the source of the music also provides an explanation of the legitimacy of music. In order to emphasize this ground of legitimacy, they give some examples of usage of music used during religious rituals. They also argue that music in these rituals enriches human's morality. Another dimension as a metaphysical level for the relation between music and ethics in the philosophy of the al-Ikhwan is the mathematical basis of music. According to them, mathematics is the first path to the discovery of divine wisdom. This is because God has created the world in a harmony with the supreme proportions that describe the specific relation between the world and the numbers. Music is an art that is located in mathematics and that these supreme proportions could be obviously seen. Accordingly, music presents definitively the truth, divine wisdom and secrets. The al-Ikhwan argue that music is similar and harmonious with the sounds that emerge from the movements of stars and planets. The happiness in the celestial world where there is no generation and corruption is reproduced by the artist in the world of generation and corruption through music. Thus, music increases the desire to rise to the celestial world. This desire is described by the al-Ikhwan as trying to resemble to God. This description demonstrate that they evaluate the nature of music in a metaphysical context. Consequently, performing music, according to them, creates a result that redirects the human to the metaphysics. This metaphysical redirection does not only have a theoretical dimension in the sense that one acquires knowledge of the truth, but also has a practical content in the act of human in the sense of the resemblance to God. This practical content concerns the moral development of a person. Regarding the relation between music and morality, the al-Ikhwan al-Safa' offer a physics-based explanation in addition to these metaphysical bases. They argue that music creates psycho-physiological effects on humans and that the melodies coming out of the strings of the lute influence the four elements; blood, yellow bile, black bile, and phlegm in the human body. The background of this explication is the Hippocratic-Galician medical theory, which has become widespread in the Islamic world since the ninth century. Within this theory, they reveal that music influences the physical and psychological states of human and that it can create permanent moral virtues such as courage, generosity, chastity, and mercifulness.

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