Hakkari Üniversitesi Akademik Veri Yönetim Sistemi
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YAŞLANAN NÜFUS VE SAĞLIK HARCAMALARININ ÇEVRESEL SÜRDÜRÜLEBİLİRLİK PERSPEKTİFİNDEN ANALİZİ: MEKÂNSAL BİR YAKLAŞIM
No full textBu çalışmanın amacı, nüfus yaşlanması (AG), sağlık harcamaları (HE), kişi başına düşen GSYİH ve yenilenebilir enerji bütçelerinin (REB) çevre kalitesi (EQ) üzerindeki etkisini incelemektir. Bu amaç doğrultusunda, 22 Avrupa Birliği (AB) ülkesinde 2005-2020 yılları arasındaki veriler mekânsal panel veri analizi ile incelenmiştir. Bulgular, AB ülkeleri arasında mekânsal etkileşimler olduğunu göstermiştir. Model belirleme testleri, sabit etkiler içeren panel mekânsal gecikme modelini desteklemiştir. Mekânsal etki katsayısı 0.53 olup, istatistiksel olarak anlamlıdır. AG ve REB, EQ üzerinde olumlu bir etkiye sahipken, HE ve kişi başına düşen GSYİH negatif etkiler göstermiştir. Sonuçlar, ekonomik, sosyal ve çevresel faktörler arasındaki karmaşık etkileşimleri ortaya koymuştur. Çalışma, AB ülkelerinin iklim hedeflerine ulaşmalarını desteklemek için politika önerileriyle sona ermektedir.The aim of this study is to analyze the impact of population aging (AG), healthcare expenditures (HE), per capita GDP, and renewable energy budgets (REB) on environmental quality (EQ). To achieve this, data from 22 European Union (EU) countries covering the period from 2005 to 2020 were examined using spatial panel data analysis. The findings indicate the presence of spatial interactions among EU countries. Model specification tests supported the spatial panel lag model with fixed effects. The spatial effect coefficient was found to be 0.53 and statistically significant. While AG and REB positively influenced EQ, HE and per capita GDP exhibited negative effects. The results highlight the complex interactions among economic, social, and environmental factors. The study concludes with policy recommendations aimed at supporting EU countries in achieving their climate goals
TÜRKİYE’DE YEREL YÖNETİMLERİN TERS GÖÇE YÖNELİK MEKÂNSALPLANLAMA YETERLİLİĞİ ÜZERİNE BİR DEĞERLENDİRME
No full textEvaluating the Impact of Modern Data Augmentation Techniques on UAV-Based Livestock Detection
No full textMagnetically retrievable 2-(2-Pyridyl)benzimidazole-Cu(I) on SBA-15@Fe3O4 for sodium Azide-Induced amination of Aryl halides
No full textThis study reports the synthesis and thorough characterization of a novel copper catalyst immobilized on magnetic mesoporous silica (Fe3O4@SBA-15). The catalyst preparation involved stepwise functionalization of Fe3O4@SBA-15 through sequential treatment with (3-aminopropyl)triethoxysilane (APTES), trichlorotriazine, and 2-(2-pyridyl)benzimidazole, resulting in Fe3O4@SBA-bis(PBI). Subsequent coordination with CuI in acetonitrile produced the final catalyst complex, Fe3O4@SBA-bis(PBI)-Cu. Extensive characterization was performed using standard spectroscopic techniques. The copper content of the catalyst was determined by atomic absorption spectroscopy to be 0.866 mmol g−1 (5.5 wt%). Catalytic performance evaluation demonstrated that Fe3O4@SBA-bis(PBI)-Cu effectively catalyzes the conversion of iodo-, bromo-, and chloroarenes to their respective anilines, using NaN3 as the nitrogen source. Notably, the catalyst exhibited excellent recyclability, maintaining catalytic activity over six successive cycles with minimal deactivation, highlighting its robustness and suitability for sustainable catalytic applications in organic synthesis. The low metal leaching (0.4%) shows that the copper is firmly bound to the ligand, and the reaction was mainly carried out by a heterogeneous catalyst
