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Sach- und Rechtsmängelhaftung bei der Leistung an Erfüllungsstatt
No full textEdime uygun ifa kuralı gereğince münferit borç kural olarak borçlunun borçlandığı edimi ifa etmesiyle sona erer. İfa yerine edim, edime uygun ifa kuralının istisnalarından biri olup, borcun adeta borçlanılan edim ifa edilmiş gibi sona ermesine sebep olmaktadır. İfa yerine edimin ifasıyla asıl borç sona erdiğinden, ifa yerine verilen ikame edimin ayıplı çıkması veya zapta uğraması halinde ikame edim karşılığında asıl alacağından vazgeçen alacaklının haklarının tespiti, uygulamada ortaya çıkan sorunların çözümü bakımından önem taşımaktadır. Çalışmamızın amacı, ifa yerine verilen ikame edimde ortaya çıkan maddi ve hukuki ayıplar sebebiyle alacaklının sahip olduğu haklara ilişkin öğretide süregelen tartışmayı ve Türk Hukuku bakımından benimsenmesi gereken görüşü ortaya koymaktır
Inequalities of the Turán-Type for the Le Roy Type's Mittag-Leffler Function
No full textThis paper presents the necessary and sufficient conditions for monotonicity of the Mittag-Leffler function of the Le Roy type (abbr. MLR-functions), taking into account its special place in the theory of analytic functions. Mehrez and Sitnik studied the monotonicity of the ratio of sections on the series of Mittag-Leffler function (MLF) and developed some Tur & aacute;n-type inequalities. These inequalities have a wide range of applications in understanding the analytical properties of functions. The proposed work is a study for MLR-functions. The primary objective of this study is the development of the Tur & aacute;n-type inequalities and subsequent validation of these inequalities on specific intervals. In addition, the log-convex property of this function is analyzed, and the theoretical significance of this property is elaborated.Tekirdag Namimath;k Kemal University Scientific Research Projects (BAP
An Overview of the Concept of Green Logistics in Terms of Sustainability and Business Practices: A Bibliographic Analysis
No full textPurpose – This study aims to examine how the concepts of green logistics and sustainability are addressed in the academic literature through a bibliographic analysis method. By analyzing academic publications in the Web of Science database from 2000 to 2024, the study seeks to identify key research themes, conceptual linkages, and gaps in the literature within the field of green logistics. Additionally, it aims to provide a guiding framework for future research by exploring how sustainable business practices are associated with green logistics. Design/methodology/approach - This study employs a bibliographic analysis method to systematically examine the academic literature on green logistics and sustainability. Publications indexed in the Web of Science database between 2000 and 2024 were analyzed, and key concepts, thematic trends, and research gaps were identified through content analysis. To visualize the data and reveal conceptual connections, co-occurrence analyses were conducted using VOSviewer software. Findings – The keywords frequently studied in the field of green logistics are sustainability, carbon emissions, green supply chain, reverse logistics and supply chain management. In addition, it is seen that research on the concept of green logistics has increased after 2020. Finally, it was concluded that green logistics practices have an impact on business performance. Discussion – The number of bibliometric studies on green logistics practices is almost negligible. The research is important in terms of examining the historical development of the concept. It also contributes to the literature
International Congress on Human-Computer Interaction, Optimization and Robotic Applications, Proceedings
No full textThis paper presents the development of "Virtual Academy", a Virtual Reality (VR)-based application designed to ensure uninterrupted access to education, particularly in scenarios where physical attendance in classrooms is challenging. The platform enables students to log in via personal credentials, granting access to assigned courses within an immersive virtual classroom. Teachers and students interact in real-time, with educators leveraging audiovisual tools to enhance the learning experience. The system also supports lesson recording for future reference, evaluates the performance of the students via designated exams, and facilitates a seamless transition to remote learning. By harnessing modern VR technology, Virtual Academy enhances educational continuity and offers an interactive and engaging alternative to traditional learning environments
Have the Best Interests of the Child Been Ensured in a Natural Disaster? The Case of the February 6, 2023 Earthquake in Turkey
No full textAdults such as child's parents, caregivers or child development specialists and teachers around the child will reduce the negative situations and the risk of maltreatment that the child will face. This study is aiming to reveal the experiences of preschool teachers and child development specialists who work voluntarily with children in the earthquake area, interacted with and supported children after the earthquake on February 6, 2023 about child rights and children's welfare. This study is basic qualitative research and gathered data from four child developers and four preschool teachers. The findings of the study were categorized under the themes of "right to education", "right to shelter", "right to health" and "right to protection". Social systems, which are usually in place to protect children, collapse because of disasters, increasing the risk of rights violations, particularly when it comes to child abuse. It has also been observed that children's rights to participation, access to a suitable education, knowledge, housing, a nutritious diet, and water are at risk due to the vulnerability of children and infrastructure to natural catastrophes. Children need to be taught about natural disaster preparedness, mitigation, prevention, response, and recovery to reduce their vulnerability to disasters, both structural and non-structural safeguards must be put in place. Ensuring a child-centered, rights-based approach in disaster preparedness and response is crucial to safeguarding children's well-being and promoting their resilience in the face of future crises
Awareness and Attitudes of Pregnant Women Regarding Endocrine Disruptors
No full textThis study aims assessment of the level of knowledge and attitudes of pregnant women regarding endocrine disruptors. This crosssectional, descriptive study was carried out in the antenatal clinic of a hospital in Istanbul between January 25, 2023, and March 3, 2023. The study sample consisted of 350 pregnant women. The data collection tools were a Personal Data Form, an Endocrine Disruptors Awareness Test, and an Endocrine Disruptors Attitude Scale. The rate of women reporting that they received no education on endocrine disruptors is 99.7%. The average score for the Endocrine Disruptors Awareness Test was 9.15 +/- 3.19, and for the Endocrine Disruptors Attitude Scale was 73.26 +/- 8.51. There was a moderate positive correlation between the scores of the Endocrine Disruptors Awareness Test and the Endocrine Disruptors Attitude Scale (r= .52, p< .01). In conclusion, it is believed that pregnant women may be aware of toxic substances in their environment but may not recognise them as endocrine disruptors. It is recommended that the topic of endocrine disruptors be added to antenatal education.Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK
On the Regularity of Opening Patterns in Building Facades (March, 10.1007/s00004-025-00815-1, 2025)
No full textThe regularity of patterns of rectangular facade openings is investigated by proposing a prototypical instance of such patterns, together with an associated mathematical expression that quantifies the similarity of an arbitrary opening pattern with the prototype. By this, the degree of regularity of the arbitrary pattern becomes subject to prediction. The aim of the paper is to gain insight into this architectural attribute, because of its relevance to aesthetics, and because what exactly regularity is in this context, and what factors influence it, has not been described with precision to date. The principle of the novel regularity prediction states that the regularity of a facade decreases when its opening pattern is dissimilar to a grid of openings having equal shape, where the decrease is proportional to the number of variables the dissimilarity comprises. The validity of the prediction is successfully verified through experiments, based on a survey and inferential statistics
Reversal in Solvatochromism, enol-imine/keto-amine Tautomerism and (E)-(Z) Photoisomerizations in a Benzylidene Aniline Schiff Base Derivative in Different Solvents
No full textA novel Schiff base, (E)-4-acetyl-N-(4-hydroxy-3-methoxybenzylidene)aniline (abbreviated as ANHMA), was synthesized and characterized using infrared and H-1- and C-13-NMR spectroscopies. Optical properties in different solvents were evaluated using UV-vis absorption spectroscopy. The compound is shown to exhibit both positive and negative solvatochromism with reversal occurring for solvents with E-T(30)similar to 45 (e.g., DMSO). The solvatochromic behavior of the compound was found to be strongly dependent on the hydrogen bond abilities and polarizability of the solvent, the observed reversal in solvatochromism being explained by the change in the dominant solvent effects in non-polar and polar-aprotic solvents (H-bond acceptor ability of the solvent and polarizability) compared to polar-protic solvents (H-bond donor ability), according to the developed Catal & aacute;n multiparametric solvatochromic model. In all freshly prepared solutions studied, the (E)-enol-imine tautomer of the compound was found to strongly predominate over the keto-amine tautomeric forms, the latter increasing their populations over time in the presence of H-bond donor/acceptor species. Irradiation of ANHMA with UV light (lambda >= 311 nm) was also investigated in several solvents and shown to follow a general pattern, with the conversion of the (E)-enol-imine tautomer into the keto-amine forms in a solvent-mediated enol-imine/keto-amine tautomerism, and (Z)->(E) C=C isomerization between the keto-imine forms. The experimental results received support from an extensive series of calculations on the structure and UV-vis spectra of the relevant tautomeric/isomeric forms of the compound performed at the DFT(B3LYP)/6-311++G(d,p) level of approximation (including time-dependent DFT calculations and solvent consideration)
The Significance of Doxylamine, an Antihistamine Compound, in the Context of Its Potential Efficacy against COVID-19: Conformational Analysis, Molecular Docking, and Molecular Dynamics Studies
No full textSARS-CoV-2 initiates infection by binding its surface spike glycoprotein to the ACE2 receptor on the human cell surface, facilitating the entry of its genetic material into the human cell. Due to the pivotal role of the spike protein in this infection mechanism, in this study the versatility of the bioactivity of the doxylamine molecule was investigated, and by theoretical molecular modeling studies its potential of blocking the entry of the spike protein into human cells was revealed. In the initial phase of this investigation, conformational analysis of doxylamine was executed employing the PM3 method, yielding six stable conformations. Subsequently, the lowest energy conformation obtained was subjected to optimization at the DFT/B3LYP/6-31++G(d,p) level of theory. Vibrational wavenumbers, highest occupied and lowest unoccupied molecular orbitals, and molecular electrostatic potential for the most stable conformer of doxylamine were computed using the DFT/B3LYP/6-31++G(d,p) level of theory. For docking studies firstly, the optimization by energy minimization feature of the YASARA structure program was employed to both ligand and the ligand-free receptor obtained from the protein databank. Molecular docking simulations were adeptly employed to identify potential compounds with doxylamine anticipated to demonstrate inhibitory activity against the spike protein of SARS-CoV-2. Molecular docking study of doxylamine was conducted with spike receptor-binding domain (RBD) of SARS-CoV-2 (PDB ID: 6M0J). Furthermore, ligand-receptor interactions were scrutinized through a molecular dynamics (MD) simulation lasting 125 ns to verify the stability of doxylamine within the ACE2 binding site
Photographic Image in Perspective: A Model Proposal for Theoretical Analysis of Visual Perception and Distance Estimation
No full textBu çalışma, perspektifin sadece teknik bir beceri olmanın ötesinde, insanın görsel algısının karmaşık doğasını yansıtan fotografik bir görüntü olduğunu vurgulamaktadır. Perspektif, mekanın algılanışındaki bakış açısını ifade etmek için kullanılmaktadır. Gerçek hayatta mekandaki nesneler arasındaki mesafe algısı farklı açılardan boyut, konum vb. faktörler bakımından farklılık gösterebilmekte ve yanılsama oluşturmaktadır. Bu yanılsamalar, farklı kamera açılarından elde edilen çoklu üç boyutlu görüntüler ile perspektifin ve görsel algının dinamiklerini göstermek için bu çalışmada kullanılmıştır. Sabit iki nesne arasındaki mutlak derinliğin sabit kalmasına rağmen göreceli derinliğin değiştiğini ve bunun mutlak derinliğin farklı olarak algılanmasına sebebiyet verdiği ileri sürülmektedir. Bu hipotezin analizi üzerinden görsel algı ve mesafe algısının teorik analizine yönelik model önerisinde bulunulmuştur. Bu çalışma, iç mekânın perspektif yapısının ve bakış açısının görsel algı üzerindeki etkilerini incelerken, bu dinamikleri aydınlatmayı hedeflemektedir. Ayrıca, perspektifin sadece görsel bir temsil olmadığını, aynı zamanda gözlemcinin mekânsal algısını ve nesnelere yönelik algısal yaklaşımını da şekillendirdiğini ortaya koymaktadır