Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(34)
- Tuncer, Metin(11)
- Merdan, Mehmet(10)
- Emirza, Elif Güzide(9)
- Yilmaz, Coskun(9)
- Baltaci, Cemalettin(8)
- Baltacı, Cemalettin(8)
- Tuncer, Gülsüm Zekiye(8)
- Türkkan, Tuğba(8)
- Dinç, Artum(7)
- Araz, Onur(6)
- Bekar, Fevziye(6)
- Cakir, Mehmet Ali(6)
- Ceylan, Levent(6)
- Duran, Celal(6)
- Koçak, Tevfik(6)
- Ozdes, Duygu(6)
- Soydaş, Şafak Sönmez(6)
- Akmeşe, Osman(5)
- Akyol, Hikmet(5)
- Bayrak, Nurten Gülsüm(5)
- Bayrakdaroglu, Serdar(5)
- Bülbül, Kenan(5)
- Ceylan, Halil Ibrahim(5)
- Gücer, Mehmet Ali(5)
- Karimullah, Suud Sarim(5)
- Kavuran, Korhan(5)
- Kaygusuz, Abdullah(5)
- Kulakaç, Nurşen(5)
- Kurnaz, Muammer(5)
- Saydam Eker, Çiğdem(5)
- Turk, Veysel(5)
- Öztürk, Serkan(5)
- (Alieva), Vildane Özkan(4)
- Abada, A.(4)
- Abbrescia, M.(4)
- Abdolmaleki, H.(4)
- Abidi, S. H.(4)
- Abramov, A.(4)
- Adam, C.(4)
Yayınlar
- MakaleAçık Erişim2025The Mediating Role of Attitudes Towards Psychology of Religion Course in the Relationship Between Theology Students’ Levels of Religious Attitude and Finding Meaning in Life
Birinci, Ali; Maraşlıoğlu, Şerife Ericek
The notion of meaning in life can be defined as the subjective experience that life is valuable and worth living. Research has demonstrated that individuals who possess a strong sense of purpose tend to demonstrate positive coping mechanisms and maintain optimal mental well-being when confronted with adversity. In essence, the presence of meaning in life has been shown to enhance an individual’s resilience, thereby mitigating the risk of developing mental health conditions such as pessimism, anxiety, stress, and depression. Religious attitude, on the other hand, shapes an individual’s inner and outer life by directing his/her religious feelings, thoughts and behaviors. As a matter of fact, religious attitude plays a strong role in finding resources to solve life problems, finding explanations for stressful life events such as disappointments and frustrations by affecting the individual’s level of making sense of life. In a similar manner, the objective of the psychology of religion course is to facilitate comprehension and elucidation of the human condition, encompassing the intricacies of individuals’ emotions, cognitions, and behaviours, as well as their interactions with their immediate environment, broader culture, and their spiritual practices. The attainment of this objective is contingent upon the motivations, motives and attitudes of students towards the course. A positive attitude towards the course has been shown to have a significant impact on students’ sense of purpose and their religious attitudes. In this context, it is important to investigate the interactional relationship between the levels of making sense of life and religious attitudes of theology faculty students and their attitudes towards the psychology of religion course. The present study aims to determine whether the psychology of religion course exerts a mediating effect on the relationship between the level of religious attitude exhibited by theology faculty students and their ability to find meaning in life. The study group of the research consists of a total of 320 students, 218 female and 102 male, studying at Gümüşhane University Faculty of Theology in the 2023-2024 academic year. The study data were collected using a Personal Information Form, an Attitude Scale towards the Psychology of Religion Course, a Religious Attitude Scale, and Meaning and Purpose of Life Scales. The data were analysed with IBM SPSS Statistics 26 and Amos 24 software packages. The findings indicated a positive relationship between students’ religious attitude levels and their levels of finding meaning in life. It can thus be posited that individuals who exhibit pronounced religious attitudes are concomitantly characterised by a propensity to engage in the making of sense of life. The findings further revealed significant positive relationships and interactions between the religious attitudes of theology faculty students and their attitudes towards the psychology of religion course. It is thought that the psychology of religion course can contribute to the individual’s efforts to make sense of life by explaining religious feelings, thoughts and behaviours in terms of content and achievement. The study revealed a positive correlation between an individual’s attitude towards the psychology of religion course and the level of meaning in their life. Furthermore, it was observed that the attitude towards the psychology of religion course played a mediating role in the relationship between religious attitude and the level of meaning in life. Consequently, all hypotheses determined within the scope of the research were confirmed. The results of the study indicate that attitudes towards the psychology of religion course are significant for undergraduate students’ religious attitudes and their sense of life’s meaning. In light of these findings, it is recommended that instructors oversee students’ attitudes towards the course during the teaching process, enhance course materials and content, and incorporate diversity in terms of methodology.
- MakaleAçık Erişim2025The Effects of Vertıcal and Horızontal Statıc Core Strength Exercıses on Athletıc Performance ın Young Female Handball Players
Bayrakdaroğlu, Serdar; Ceylan, Halil Ibrahim; Edis, Çağlar
Core exercises are typically performed in the horizontal plane, whereas athletic activities such as running, jumping, and change of direction (COD) occur in both vertical and horizontal planes. This study aimed to investigate the effects of static core exercises performed in the vertical and horizontal planes on physical performance. Twenty-four female handball players voluntarily participated in the study and were randomly assigned to either a vertical static core (VSC) exercise group (n=12; age: 17,75±0,99 years, height: 171,00±8,66 cm, weight: 66,08±5,97 kg) or a horizontal static core (HSC) exercise group (n=12; age: 17,75±0,75 years, height: 166,75±13,71 cm, weight: 63,33±6,74 kg). A two-group experimental design with a pretest-posttest model was employed. The core exercise protocol consisted of prone plank, side plank (right and left), supine bridge, and bird dog exercises, performed three times per week for eight weeks. Before and after the intervention, participants were evaluated for isometric core strength, 5-20 meter linear sprint performance, vertical jump height, and three different COD performance tests. Data were analyzed using the Shapiro-Wilk test to assess the normality of the distribution. Paired samples t-tests were used to analyze differences between the groups’ pretest and posttest results based on normality assumptions. For between-group comparisons, independent samples t-test was used. The results revealed no statistically significant differences between the VSC and HSC groups in terms of post-exercise performance improvements (p>0.05). However, significant improvements in physical performance parameters were observed within both groups from pre- to post-intervention (p
- MakaleAçık Erişim2025Hemşirelik Öğrencilerinin Klinik Uygulamaya Uyumunu Sağlamaya Yardım Edici/Engelleyici Durumlar
Uzun, Sevda; Koçtaş, Selcan; Dinlemek, Selvi
Bu çalışmanın amacı, hemşirelik öğrencilerinin klinik uygulamaya uyumunu sağlamaya yardım edici/engelleyici durumları niteliksel fenomenolojik bir yaklaşım kullanarak değerlendirmektir. Bu araştırmada nitel araştırma deseni olan fenomenolojik araştırma tasarımı kullanılmıştır. Bu nitel araştırma bir devlet üniversitesinin sağlık bilimleri fakültesinin hemşirelik bölümünde öğrenim gören 60 gönüllü hemşirelik öğrencisi ile 15 Ocak-15 Şubat 2023 tarihleri arasında yapılmıştır. Görüşmeler bireysel olarak ve yüzyüze yarı yapılandırılmış form kullanılarak gerçekleştirilmiştir. Veriler, Colaizzi'nin fenomenolojik analiz yöntemi kullanılarak yapılmıştır. Verilerin analizinde üç kategori (uygulama ortamından beklentiler, uygulama sırasında yaşanan zorluklar, klinik uygulamada motive edici faktörler) yedi alt tema (fiziksel açıdan, psikolojik açıdan iletişim, bilgi, süre, kişiler ve ortam) saptanmıştır. Hemşirelik öğrencileri uygulama sırasında ortam, teorik bilgi yetersizliği, uygulama süre kısıtlılığı gibi nedenlerden dolayı sorunlar yaşamaktadır. Ayrıca hemşirelerle ve diğer ekip üyeleri etkin iletişim kurmanın, hastalardan olumlu geri bildirim alınmasının, öğretim elemanlarının öğretici ve destekleyici yaklaşımlarının öğrencilerin motivasyonunu artırdığı belirlenmiştir. Uygulama süresinin daha uzun olması, yeterli öğretim elemanının olması, hemşirelerin daha etkin rol model olması, fiziki koşulların iyileştirilmesi önerilmektedir.
- MakaleAçık Erişim2025Türkiye’de Yeşil Liman Olabilecek Limanların ANP-BOCR Yöntemi ile Değerlendirilmesi
Kisa, Ayse Cansu Gok; Peker, İskender; Gergin, Ramazan Eyüp; Keske, Büşra
Yeşil limanlar, kentsel ekonominin gelişmesine ve sürdürülebilir çevresel stratejilerin uygulanmasına imkân sağlayan önemli unsurlardandır. Bu araştırmada, Türkiye’de faaliyet gerçekleştiren limanların yeşil liman sertifikasına sahip olma potansiyellerinin değerlendirilmesi amaçlanmıştır. Bu amaç doğrultusunda sektör raporlarında yer alan veriler çerçevesinde bölgesel anlamda konteyner elleçleme miktarı (TEU) en fazla olup yeşil liman sertifikasyonu olmayan limanlar çalışmanın alternatiflerini oluşturmuştur. Çalışmanın kriterleri ise kapsamlı bir literatür araştırması ve uzmanların görüş önerileri çerçevesinde belirlenmiştir. Problemin çözümünde ise bir Çok Kriterli Karar Verme (ÇKKV) tekniği olan Analitik Ağ Süreci (ANP)- Fayda, Fırsat, Maliyet, Risk (BOCR) yaklaşımından faydalanılmıştır. Buna göre yeşil liman sertifikasyonu sahipliğinde en fazla etkiye sahip olan kriter hava kirliliğini azaltmak (0,049) olmuş iken, en az etkiye sahip kriterler ise soğuk ütüleme ve gemi hızı düşürme teknolojisi kullanılması (0,015) ile liman ücretlerinde ceza fiyatlandırması yapılmaması (0,015) olarak tespit edilmiştir. Mersin International Port (0,055) ise yeşil liman sertifikasına sahip olma potansiyeli en yüksek alternatif olarak belirlenmiştir.
- Derleme MakaleAçık Erişim2025The Role of Electronic Fetal Monitoring (EFM) in Obstetric Malpractice: An Evaluation from the Perspectives of Midwives, Nurses and Forensic Medicine
Doğan, Muzaffer Berna; Karakas, Sevda
This review aims to assess the significance of electronic fetal monitoring (EFM) in medical error claims in obstetrics from the perspectives of midwifery, nursing, and forensic medicine. One fundamental approach to preventing adverse events during labor is the early recognition of fetal distress. Midwives and nurses are responsible for applying, evaluating, and recording EFM tracings during labor, which are crucial evidence in forensic medical evaluations. In the absence of medical records, the follow-up, treatment, and medical practices become contentious during trials, leading to delays in the litigation process. This is because medical records are vital in evaluating medical malpractice claims, and expert witnesses play a key role in assessing the standard of care. Despite its widespread use, there is a need for greater clarity on the reliability, role, and benefits of EFM. Furthermore, expert witnesses in medical malpractice cases may interpret practices with controversial reliability differently. While the reliability of EFM is debated, it cannot be ignored that it is an essential tool for early recognition of fetal distress. Given its importance and the need for written evidence in the trial process, it is recommended that forensic nurses, midwives, and lawyers receive training on maintaining medical records according to standards.
- MakaleYalnız künye2025Enrichment of Tarhana with Olive Leaf Powder: Evaluation of Physical, Functional, Powder, and Sensory Properties
Koc, Gulsah Caliskan; Altay, Kadriye; Erdoğan, Lubabe; Akdoğan, Arda; Gülden, Emin
Olive leaves are a by-product of olive cultivation and remain underutilized despite their significant potential as a rich source of health-promoting and functional components. Similarly, tarhana, a fermented food product, is known for its valuable nutritional properties. This study aimed to combine these two beneficial products by examining the effect of different concentrations of dried olive leaf powder (0, 2.5, 5, 7.5, and 10% by weight) on the physical, functional, powder, and sensory properties of tarhana samples. Results showed that moisture content of the tarhana samples were below 10% (wet basis, wb). The ash content (2.17-2.71%, wb) and water holding capacity (32.50-59.00%) of samples increased significantly with the addition of olive leaf powder (p<0.05). The pH value of the doughs was found to be around 5.5 and decreased during the fermentation. The wettability and solubility times of all samples were found to be less than 25 seconds and 16 seconds, respectively. All tarhana samples exhibited high flowability and low stickiness properties. Formulations containing up to 7.5% olive leaf powder were well-received by consumers.
- MakaleAçık Erişim2025Mapping the Individual: A Psychogeographical Reading of Iris Murdoch’s Under the Net
Uruk, Ahmet
Introduced firstly by Guy Debord, the founder of the Letterist International, in 1955, psychogeography intersects with the study of the psychological and emotional effects of an urban city on individuals. Proposing that both space and psychology complete one another, psychogeography, as a term juxtaposing psychology and geography, seeks to unearth the estrangement and the dehumanizing impacts of global urbanism consolidated by advanced capitalism and industrialization. In this sense, psychogeography focuses mostly on the act of walking so as to comprehend the ongoing conflict between the mind and city and suggests walking as a conscious activity can function as a protest and subversion against the commodification and repressive constraints of the city. Likewise, Iris Murdoch's debut novel titled Under the Net captures the story of Jake Donaghue and his unstable psychology alienated and decentred by the formation of an urban city, that is, London. Thus, this study aims to analyze Iris Murdoch's Under the Net in order to emphasize the fragmentation and displacement of individuals in accordance with the global urbanism by employing a psychogeographical lens.
- MakaleAçık Erişim2025Family Functions, Sense of Family Cohesion and Self-Esteem in Married Individuals Gümüşhane Case in Türkiye
Güngör, Sunay
Family is a very important institution. Self-Esteem of married individuals is an important issue for the continuation of their marriage therefore this study examines the relationship between family functions, sense of family cohesion, and self-esteem among married individuals in Gümüşhane, Turkey. A sample of 532 participants completed paper surveys, providing data on family functions using the Family Functions Scale (FFS), sense of cohesion within the family using the Family Sense of Coherence Scale, abbreviated (FSOC-S), and self-esteem using the Two-Dimensional Self-Esteem Scale. Descriptive statistics, Pearson’s correlation tests, and Structural Equation Modeling (SEM) was used for data analysis. Results indicate significant direct effects of family functions on both sense of family cohesion (β=1.648, p<0.001) and self-esteem (β=0.682, p<0.001), highlighting the influential role of family dynamics on these variables. Additionally, a significant relationship between sense of family cohesion and self-esteem (β=0.193, p<0.001) underscores importance of family cohesion in shaping individual self-esteem. These findings contribute to understanding the complex interrelations among family functioning, cohesion, and psychological well-being in married individuals.
- MakaleAçık Erişim2025İnsansız deniz araçları çağı: rusya-ukrayna savaşı’ndan alınan dersler kapsamında bir değerlendirme
Özgen, Cenk; Tutak, Eda
Yüksek teknolojili sistemlerin gelişmesiyle birlikte modern hayatın her alanında yaşanan dönüşüm savunma ve güvenlik alanında da kendini göstermiş, insansız platformların aktif biçimde kullanımı askerî düzlemde yeni bir dönemin kapılarını aralamıştır. İnsansız deniz araçları, bu dönüşümün önemli bir parçasını ve deniz harbinin geleceği açısından bir kırılma noktasını oluşturmaktadır. İleri teknolojinin çarpıcı çıktılarından biri olan insansız deniz araçları, devletlere denizlerde daha özerk ve risksiz hareket etme olanağı sağlarken, bir kuvvet çarpanı olarak deniz harekâtının taktik ve operatif seviyedeki icrasında önemli avantajlar da sunmaktadır. Rusya-Ukrayna Savaşı ise insansız deniz araçlarının devletlere sunduğu imkânların açıkça sahnelendiği ve bu araçların yoğun biçimde kullanıldığı ilk devletlerarası çatışma olarak tarihe geçmiştir. Bu çalışmanın amacı Rusya-Ukrayna Savaşı’ndan yansıyan verileri dikkate alarak modern deniz harbinin yeni oyuncuları olarak görülen insansız deniz araçlarını incelemektir. Bu amaç kapsamında çalışmada öncelikle teknolojik gelişmelerin deniz harekât ortamına etkileri üzerinde durulmuş ve ardından insansız deniz araçları farklı boyutlarıyla ele alınmıştır. Daha sonra insansız deniz araçlarının kullanım konseptleri Rusya-Ukrayna Savaşı özelinde değerlendirilmiş ve Ukrayna’nın bu kapsamdaki uygulamalarına yer verilmiştir. Çalışmanın sonucunda, insansız deniz araçlarının deniz harbinin geleceğini etkileyen asli muharebe unsurları arasında yer aldığı ve dünya donanmalarındaki sayısının hızla artacağı vurgulanmaktadır
- MakaleYalnız künye2025Is Humble Leadership a Safe Port in Employee Voice and Organizational Identification? Research in the Education Sector
Kenek, Gökhan; Nur, Erkan
In the study, the mediating role of organizational identification in the effect of humble leadership on teachers' voice is examined. The theoretical framework of the research is based on social identity and social change theories. The study is carried out with the participation of 306 teachers working in Şanlıurfa province. Data are collected by electronic means (survey) and snowball sampling method is used. The obtained data are analyzed with SPSS 26.0 and Mplus 7 programs. Data are evaluated with confirmatory factor analysis, correlation and bootstrap regression analyses. As a result of the analysis, it is determined that humble leadership has a statistically significant and positive effect on both employee voice and organizational identification. In addition, it is determined that organizational identification plays a partial mediating role in the relationship between humble leadership and employee voice. Based on the findings of the study, recommendations are made for academics for future research and for managers to develop more effective strategies.
- MakaleAçık Erişim2025Investigation of mechanical properties of nano-graphene reinforced polymer composites
Karabudak, Filiz; Ateş, Onur Kazım; Zamanlou, Hamid
The demand for lightweight and durable materials in industries such as automotive, aerospace, and chemical engineering has driven research into advanced composite materials. This study investigates the interaction between nano-graphene and polymer matrices, focusing on how varying concentrations of nano-graphene can optimize mechanical properties and potentially revolutionize the design of structural components. Polymer composite materials were produced using glass fiber fabric and an epoxy resin system employing the hand lay-up method. Nano-graphene was incorporated into the matrix at weight percentages of 0.2%, 0.4%, 0.6%, 0.8%, and 1%.Notably, the addition of 1% nano-graphene resulted in a significant tensile strength increase, achieving a maximum value of 186.73 MPa, compared to the control group at 53.71 MPa. This enhancement is attributed to the improved stress transfer mechanisms facilitated by the nano-graphene’s high surface area and exceptional mechanical properties. However, an unexpected decrease in bending strength was observed, with the glass fiber control group composites exhibiting the highest bending strength of 404.75 MPa. This trend suggests that while nano-graphene enhances tensile properties, it may introduce interfacial weaknesses or disrupt fiber alignment in bending scenarios. These findings reveal the complex nature of nano-graphene reinforcement, emphasizing the need for tailored formulations to balance tensile and bending performance. Further investigation into the interfacial bonding and distribution of nano-graphene within the polymer matrix is warranted to develop optimized composite materials for structural applications.
- MakaleAçık Erişim2025Düşey gravite gradyentinin yersel ve global değişiminin izlenmesi: Sümela Manastırı örneği
Yılmaz, Nazan; Tütüncü, Mehmet
Düşey gravite gradyenti (DGG) topoğrafyada ölçülen gravitenin jeoide indirgenmesi için önemlidir. DGG’nin ölçümünün zor olması, uzun zaman almasından dolayı çalışmalarda genellikle global yerpotansiyel modellerden elde edilen DGG değerleri kullanılmaktadır. Bu çalışmada Trabzon Sümela Manastırı çevresinde sarp ve dağlık bir güzergahta eş zamanlı olarak 115 noktada yapılan gravite ölçüleri ile hassas nivelman ölçüleri yardımıyla yersel olarak DGG değerleri belirlenmiştir. Çalışma sahasında aynı zamanda GNSS ölçüleri de yapılarak global yerpotansiyel modeller (EGM2008, ITU_GGC16, XGM2019) yardımıyla global DGG değerleri hesaplanmıştır. Yersel ölçülerden elde edilen DGG değerleri ile global yerpotansiyel modellerden elde edilen DGG değerleri karşılaştırılmıştır ve yersel DGG değerlerinin yükseklikle değişimi lineer ve kuadratik (non-lineer) denklemlerle ifade edilmiştir. Karşılaştırılan DGG büyüklük farklarına ait minimum, maksimum, ortalama ve karesel ortalama hata değerleri (KOH) hesaplanmıştır. DGG farklarına ait en küçük KOH değerine göre yersel ölçülere en iyi uyum sağlayan global yerpotansiyel modelin ITU_GGC16 olduğu tespit edilmiştir. İstatistiksel sonuçlar incelendiğinde, global yerpotansiyel modeller yerine yeryüzünde doğrudan ölçülen düşey gravite gradyenti değerlerinin kullanılmasının gerekliliği bir daha ortaya konulmuştur.
- MakaleAçık Erişim2025Yüksek Enerjili Büyük Hadron Çarpıştırıcısı Bazlı Müon-Proton Çarpıştırıcılarında Uyarılmış Müon Üretimi
Sahin, Mehmet; Caliskan, Abdullatif
Bu çalışmada uyarılmış müonların Yüksek Enerjili Büyük Hadron Çarpıştırıcısı (YE-BHÇ) bazlı müon proton çarpıştırıcılarında temas etkileşim yöntemiyle üretilip ayar etkileşimleri ile foton kanalına bozunmasıyla oluşan uyarılmış müon sinyal süreci (µp → µ*j → µγj) incelenmiştir. Uyarılmış müonun sinyalini ardalandan ayırmak için keşif sınırlamaları uygulanarak sinyal-ardalan analizi yapılmıştır. Farklı kompozitlik skalası değerleri için yapılan hesaplamalar sonucunda uyarılmış müon kütlesine ait keşif (5σ), gözlem (3σ) ve dışarlama (2σ) limitleri belirlenmiştir. Kütle merkezi enerjileri 9 ve 12,7 TeV olan bu çarpıştırıcıların uyarılmış müon araştırmalarında iyi bir potansiyele sahip olacağı sonucuna ulaşılmıştır.
- MakaleAçık Erişim2025An Examination of the Sustainability of Inclusive Behaviors Towards Disabled Employees in Ground Handling Businesses
Vural, Selvi
The aim of this research is to identify the behaviors that should be exhibited within the framework of inclusion and how these behaviors can be improved to more effectively integrate existing employees with disabilities into work teams within ground handling businesses. This study is significant as it is the first to address this subject within the context of sustaining inclusive behaviors in ground handling operations. Moreover, the research question could only be addressed through a qualitative approach. Data were collected using qualitative methods, specifically through interviews conducted with both managers and employees. A total of 41 participants were interviewed. The findings revealed that stereotypes play a decisive role in the demonstration or development of sustainable inclusive behaviors toward employees with disabilities in ground handling businesses within the air transportation sector. Attitudes were found to play a significant role in the expression of these behaviors and are shaped by stereotypes based on either compassion or competence. Furthermore, in terms of sustainability, low levels of competence-based stereotypes tend to give rise to negative attitudes, whereas compassion-based stereotypes are associated with more positive attitudes.
- MakaleAçık Erişim2025Microstructural investigation of geopolymer composites obtained from recyclable waste materials
Çavdar, Özlem; Temizer, Hülya
Today, researchers are exploring materials that could replace cement and provide solutions for utilizing waste products. In this study, a binder was formulated using 85% blast furnace slag and 15% fly ash. Three different additives—marble powder, strontium mineral waste, and titanium dioxide—were incorporated as partial replacements for blast furnace slag at ratios of 5%, 5%, and 1%, respectively, to create geopolymer mortars. The impact of these additives on the flexural and compressive strength of the mortars was evaluated. Furthermore, SEM/EDX analysis was performed to assess the microstructural effects of the additives. The findings revealed that titanium dioxide resulted in the highest compressive strength, recorded at 65.7 MPa. The SEM/EDX analysis suggested that the samples demonstrated a homogeneous internal structure, indicating a robust bond among the components of the matrix.
- MakaleAçık Erişim2025Covid-19 Pandemisinde İstatistik Bölgelerdeki Sağlık Hizmetinin Çok Boyutlu Ölçekleme ve TOPSIS Yöntemlerine Göre Değerlendirilmesi
Köse, Aslı
21.yüzyılın halk sağlığı krizi olarak nitelendirilen Covid-19 özellikle sağlık sektörü olmak üzere birçok sistemi etkilemiştir. Dünya ülkelerinde öncelikli hedef sağlık risklerini azaltıp hayatın devamlılığını sağlamak olarak belirlenmiştir. Türkiye’de 2020 yılında Covid-19’a yönelik ilk önlemler Mart ayında alınmaya başlamıştır. Bu çalışmanın amacı istatistik bölgelerin pandemi döneminde sağlık hizmeti kapasite, sağlık hizmeti üretimi, sağlık insan gücü parametrelerine göre değerlendirilmesidir. 2020 ve 2021 yılları sağlık istatistikleri yıllıklarından sağlık hizmeti kapasite parametreleri hastane yatak sayısı, yoğun bakım yatağı sayısı, BT cihazı sayısı, sağlık hizmeti üretimi parametresinde kişi başı hastaneye başvuru sayısı, sağlık insan gücü parametresinde ise hekim sayısı, hemşire ve ebe sayısı seçilmiştir. İstatistik bölgelerin sağlık hizmeti kapasitesi, sağlık hizmeti üretimi ve sağlık insan gücünü kapsayan 6 parametre ile çok boyutlu ölçekleme analizi ile konumları belirlenmiştir. TOPSIS yöntemi ile seçilen parametrelere göre istatistik bölgelerin sıralamaları yapılmıştır. İstatistik bölgelerin seçilen 6 parametreye göre konumlarının değerlendirildiği çok boyutlu ölçekleme analizi ile sıralamanın yapıldığı TOPSIS sonuçlarının benzer olduğu belirlenmiştir.
- MakaleAçık Erişim2025Evaluation of antioxidant, antimicrobial, and α-amylase enzyme inhibition properties of Rosa canina seed extracts prepared with different solvents using maceration and ultrasound-assisted extraction methods
Baltaci, Cemalettin; Akmeşe, Osman; Aygül, İmdat; Kılınç, Kagan; Hafedh, Mohammed
The efficient extraction of bioactive molecules from medicinal plants is strongly related to the solvents and methods used. This study evaluated the impact of solvent selection and extraction methods on the bioactive potential of Rosa canina seed extracts, focusing on antioxidant, antimicrobial, and α-amylase inhibitory activities. Four solvents —dimethyl sulfoxide (DMSO), ethanol-water (80:20), ethyl acetate, and acetonitrile— were paired with maceration and ultrasonic techniques to generate eight extracts (DMM, DMU, ESM, ESU, EAM, EAU, ACM, ACS). Antioxidant activity was assessed via total phenolic (TPC) and flavonoid (TFC) content, FRAP, DPPH, and ABTS assays. Antimicrobial efficacy was tested against seven microorganisms (Gram+, Gram−, and yeast) using well diffusion and MIC methods, while α-amylase inhibition was quantified via IC50. The ethyl acetate ultrasonic extract (EAU) exhibited the highest TPC (63.86 mg GAE/g) and TFC (210.23 mg QE/g), along with superior antioxidant activity across all assays (P < 0.05). Ethyl acetate maceration (EAM) ranked second, underscoring ethyl acetate’s efficacy. Acetonitrile maceration (ACM) demonstrated the strongest α-amylase inhibition (IC50 = 20.46 mg/mL). All extracts showed notable antimicrobial activity against Aeromonas hydrophila and Klebsiella pneumoniae, though efficacy varied for other strains. DMSO-based extracts (DMM/DMU) consistently underperformed. These findings highlight ethyl acetate (EAU/EAM) as optimal for antioxidant-rich extracts and ACM for enzyme inhibition, positioning Rosa canina seeds as a promising source of natural bioactive compounds for functional food and therapeutic applications.
- MakaleAçık Erişim2025Removal of anionic and cationic dyes from aqueous solutions using drinking water treatment plant sludge (DWTS): Equilibrium and kinetic evaluation
Duran, Celal; Ozdes, Duygu; Turfan, Fatma Asya; Kılıç, Neslihan; Yaltirik, Fatma
The present research investigates the removal of Brilliant Green (BG) and Remazol Brilliant Blue R (RBBR) dyes by an adsorption system utilizing drinking water treatment sludge (DWTS) as an adsorbent. It aims to contribute to sustainable treatment methods by evaluating waste sludge as a low-cost and environmentally friendly adsorbent. In the study, the significant parameters affecting the adsorption process were systematically investigated. During the experiments, the effects of factors such as initial pH of the solution, equilibrium time, adsorbent amount and initial dye concentration on the adsorption efficiency were evaluated. The obtained data were tested with Langmuir and Freundlich isotherm models and it was determined that adsorption occurred on both homogeneous and heterogeneous surfaces. The maximum adsorption capacity of DWTS was calculated as 100.0 mg g-1 and 38.9 mg g-1 for BG and RBBR, respectively. Kinetic analyses were performed to understand the dynamics of the adsorption process. Pseudo-first order and Pseudo-second order kinetic models were evaluated and it was noticed that the pseudo-second order model explained the adsorption data better. As a result, DWTS has been proven to be an effective adsorbent in the removal of BG and RBBR. The findings indicated that DWTS has significant potential for evaluation in advanced treatment processes in terms of environmental sustainability.
- MakaleAçık Erişim2025Assessment of antioxidant, antimicrobial, antibiofilm, carbonic anhydrase and α-glucosidase inhibitory activities of Alchemilla vulgaris L. extracts
Düzgün, Azer Özad; Akar, Zeynep; Kardil, Ugur
This study was to investigate the biological properties (antioxidant, enzyme inhibitory and antimicrobial activity) of water extract (WE), 50:50% water:ethanol extract (WEE) and ethanol extract (EE) of aerial parts of Alchemilla vulgaris L. which was traditionally used to alleviate and treat many diseases. The WEE extract exhibited the highest total phenolic content (TPC), with a value of 612 µg/mL GAE, while the EE extract demonstrated the highest total flavonoid content (TFC), with a value of 0.086 µg/mL GAE. Also, the data demonstrated that the WEE extract exhibited the highest radical scavenging capacities and antioxidant activities, exhibiting 0.0056, 0.0028 mg/mL SC50 and 267, 0.081 μM TEAC, as determined by the DPPH, ABTS, FRAP and CUPRAC assays, respectively. The WEE extract was found to be an effective bovine carbonic anhydrase (BCA) and α-glucosidase inhibitor with an IC50 values of 0.0628 and 0.0535 mg/mL, respectively. The EE extract showed activity against both Gram-negative and Gram-positive bacteria used in the study. EE extract has the highest activity against Yersinia pseudotuberculosis and the lowest activity against Streptococcus pyogenes. Furthermore, the extracts significantly reduced the biofilm ability of Acinetobacter baumannii isolate, which has strong biofilm ability. EE and WE reduced the biofilm formation capacity of the strain to a weak level, while WEE extract reduced it to a moderate level. The results suggest that EE has a significant effect in combating antibiotic resistance, while WEE has high antioxidant activity and good inhibitory effect against BCA and α-glycosidase enzymes. In addition, the results revealed that solvent extracts with different solvent composition and polarity may have different effects on diverse bioactivity tests.
- MakaleAçık Erişim2025Green synthesis of fluorescent carbon quantum dots from field horsetail Equisetum Arvense L and fluorimetric detection of Pd2+ ions
Başoğlu, Aysel
The study presents a comprehensive phytochemical analysis of A. caucasicus, examining both the leaf and flower parts of this plant. The Fluorescent carbon quantum dots (CQDs) were synthesized via a hydrothermal method using field horsetail (Equisetum arvense L.) as a green carbon source at 180 °C. The resulting CQDs were characterized by various techniques, including UV–Vis absorption spectroscopy, fluorescence spectroscopy, fourier-transform infrared (FTIR) spectroscopy, and transmission electron microscopy (TEM). Under UV illumination at 365 nm, the CQDs displayed intense blue fluorescence. The effects of 32 different metal ions, including Li⁺, Na⁺, K⁺, Ag⁺, NH₄⁺, Tl⁺, Ba²⁺, Be²⁺, Ca²⁺, Cd²⁺, Co²⁺, Cu²⁺, Pb²⁺, Mg²⁺, Mn²⁺, Ni²⁺, Zn²⁺, Sr²⁺, Cr³⁺, Au³⁺, Y³⁺, Al³⁺, V³⁺, Bi³⁺, B³⁺, Sc³⁺, Sb³⁺, Ti⁴⁺, Se⁴⁺, Mo⁶⁺, W⁶⁺, and Pd²⁺, on the fluorescence properties of the CQDs were systematically investigated using fluorescence spectrophotometry. Among them, Pd²⁺ ions caused significant fluorescence quenching. Based on this response, a sensitive and straightforward fluorometric sensing strategy was developed for detecting Pd²⁺ in tap water. The method showed a good linearity over the concentration range of 0.5 to 15.0 μM, with a detection limit of 50.2 nM and a quantification limit of 150.6 nM. The applicability of the method was further validated through spiking experiments, yielding satisfactory recoveries at various concentrations. The approach also demonstrated excellent reproducibility, with a relative standard deviation (RSD) consistently below 2.3%.