Istanbul Technical University
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Evaluation of the Altmetric Attention Score of Recent Hazard Food-Marker: Advanced Glycation End Products
No full textRecent trends in dietary habits have led to increased oxidative stress, heightened inflammatory responses and an increased incidence of chronic disease. With the increasing consumption of processed foods, advanced glycation end products (AGEs) have gained attention as significant "hazard food markers" associated with diets high in sugar and fat. AGEs can originate internally in the body or externally from sources such as food and smoking. This study examines the Altmetric Attention Score (AAS) to assess the online visibility and impact of recent research on AGEs. By conducting systematic searches of scientific databases and analyzing data from the Altmetric platform, the study evaluates the AAS and related online engagement metrics. The results show that AGEs-related articles receive varying levels of online attention, with notable interactions on social media, news platforms and forums. Moreover, keyword co-occurrence analysis revealed three dominant thematic areas in AGEs-related research, including dietary sources, oxidative stress mechanisms, and food processing-induced formation. This research highlights how factors such as publication venue, article type and topic relevance influence AAS, highlighting its importance in understanding the digital impact of food safety research.https://doi.org/10.18466/cbayarfbe.1580554https://dergipark.org.tr/tr/pub/cbayarfbe/issue/92869/158055
Seismic Resilience Evaluation of Hospital Buildings in Kocaeli City
No full text<title>Abstract</title> <p>Natural and human-induced hazards have caused major disasters in terms of loss of life and property for thousands of years. Coping with these losses will only be possible by creating disaster-resilient infrastructure. Structures such as health facilities, schools, and nuclear facilities, which must be used uninterruptedly, must be resilient during and after hazards. Turkey and its Kocaeli city are in a highly seismically active region and are frequently exposed to severe earthquakes. However, there still exist many infrastructure systems that have not yet been made resilient to earthquakes, and many lives and properties have continued to be lost from earthquake hazards. This was the case of the Kocaeli’s Mw 7.1 earthquake of 17 August 1999 and even the recent Mw 7.8 Kahramanmaraş earthquake of 6 February 2023, in which tens of thousands of people lost their lives and a large amount of financial loss was experienced. To better prepare for a future earthquake disaster for resilient critical infrastructures such as healthcare systems, it is important to study the urban earthquake risk of these facilities. This study proposed a probabilistic approach using the North Anatolian Fault to study the earthquake hazard of Kocaeli’s city and the related risk to healthcare buildings in the region. The seismic hazard for 2% and 10% probability of exceedance in 50 years confirmed the region's high seismicity and related risk to hospital buildings, alerting the local government in developing new plans and implementing earthquake risk mitigation strategies for this first needed health infrastructures.</p>https://doi.org/10.21203/rs.3.rs-5499410/v
Multifunctionalized Conductive Polymers for Self-Healing Silicon Anodes in Li-Ion Batteries
No full texthttps://doi.org/10.1021/acsomega.5c04052https://pubmed.ncbi.nlm.nih.gov/40787416/https://pmc.ncbi.nlm.nih.gov/articles/PMC12332679/https://doaj.org/article/99d9a99a8eba4c29a548fc19ba342cb
Unveiling the Kinematics of the 2022 D&amp;#252;zce Earthquake (Mw 5.9) and Its Impact on Regional Tectonics
No full textIn 1999, The North Anatolian Fault (NAF) generated two destructive earthquakes, namely, the Mw 7.4 Izmit earthquake and the Mw 7.1 D&amp;#252;zce earthquake, in the western part of T&amp;#252;rkiye and broke more than 180 km of NAF. After 22 years of silence, at the overlapping section of these ruptures, &amp;#160;the region produced two earthquakes: one with a magnitude of 5 and another, a year later, with a magnitude of 5.9. In this study, we aim to examine the role of these recent earthquakes in terms of slip deficit between two ruptures.Our primary focus is on the D&amp;#252;zce earthquake (Mw 5.9) that occurred on 23 November 2022. &amp;#160;Here we use a novel method to reconstruct the coseismic deformation field by&amp;#160; enhancing the signal-to-noise ratio (SNR) from ~3 years of Interferometric Synthetic Aperture Radar (InSAR) Sentinel-1 TOPS data spanning the earthquake. We estimate a coseismic surface displacement of ~2 cm for this event.Furthermore, data from the stations belonging to the Turkish National GNSS Network and data from eight new cGPS sites that we have established in the area have been processed to observe coseismic and postseismic displacement. Postseismic deformations are estimated for one month interval after the earthquake, maximum postseismic deformation is observed on the site named AKSU: 18.6 &amp;#177; 2.18 mm at east and -1.5 &amp;#177; 2.28 mm at north direction.A joint inversion model was developed using the aforementioned geodetic and seismological data to estimate the region's final state and was linked to the potential slip deficit of previous major earthquakes in 1999.https://doi.org/10.5194/egusphere-egu24-99
Developing Sugar‐Free Chewing Gum With Stevia as an Aspartame Alternative
No full textABSTRACTChewing gum is a commonly used food product, and sugar‐free chewing gum consumption is also frequent. Although artificial sweeteners, such as aspartame, are used in food recipes to replace sugar, they can be associated with health problems. Thus, it is necessary to develop products with natural sweeteners and polyols as sugar substitutes. This study aimed to investigate the use of stevia and xylitol in the production of chewing gum. Four different recipes for chewing gums (sorbitol + aspartame, sorbitol + stevia, sorbitol + xylitol + aspartame, and sorbitol + xylitol + stevia) were created by keeping the amounts of the ingredients other than the sweeteners and polyols constant. The differences in the color, texture, and sensory properties of the chewing gum samples were evaluated. Accelerated shelf‐life test (AST) was also employed to evaluate the stability of the samples during storage. The substitution of sorbitol with xylitol caused color changes (decreased L*, a*, and h° values) and decreased the hardness, springiness, and overall likeliness of the samples; however, the use of stevia did not affect the color, texture, and sensory properties of the samples compared to the aspartame‐containing samples. Thus, the findings of this study suggest that stevia can be used in chewing gum production as an alternative to aspartame without causing any adverse effects on the color, texture, and sensory properties.https://doi.org/10.1002/fsn3.70296https://pubmed.ncbi.nlm.nih.gov/40376605http://dx.doi.org/10.1002/fsn3.7029
Petrol Kaynaklı Deniz Kirliliğinin Önlenmesinde Uygulanan Temizleme Teknikleri ile ilgili Bir Değerlendirme
No full textÇevre, insan yaşamını sürdüren ve bireyleri çevrelerine bağlayan karmaşık ve temel bir sistemdir. Yapılı çevreyi, doğal çevreyi ve hava, toprak ve su dahil olmak üzere tüm doğal kaynakları kapsar. Bu unsurlar birbiriyle bağlantılıdır ve bireylerin ve toplumun genel yaşam koşullarına katkıda bulunur. Çevre, insanların hayatta kalması için hayati önem taşır ve sağlıklı bir yaşam için ekosistemlerin bozulmadan kalması gerekir. Ekosistemler zarar görürse, tüm canlı organizmalar için yaşam giderek zorlaşır ve aşırı durumlarda kirlilik nedeniyle yaşam sona erebilir. İnsan faaliyetleri genellikle çevreye zararlı atıkların bertaraf edilmesi yoluyla çevre kirliliğine yol açar ve bu da hem canlı hem de cansız unsurlara zarar verebilir. Kirlilik gözle görülebilir veya görünmez bir biçimde ortaya çıkabilir, ancak etkileri yine de güçlü bir şekilde hissedilebilir. Çevre kirliliği biyolojik, fiziksel veya kimyasal kirlilik olarak ortaya çıkabilir ve her biri denizdeki, karadaki ve havadaki ekosistemleri olumsuz etkileyerek ekolojik dengeyi bozar. Çeşitli kaynaklardan kaynaklanan kirlilik halk sağlığı sorunlarına, iklim değişikliğine, ekonomik maliyetlere ve olumsuz sosyal etkilere yol açmaktadır. Deniz kirliliği, özellikle de petrol sızıntıları, çevre kirliliğinin en ciddi biçimlerinden biridir. Petrol sızıntılarının deniz ekosistemleri üzerinde yıkıcı etkileri vardır ve petrol sızıntılarına müdahale alanındaki araştırmacılar ve kuruluşlar için merkezi bir odak noktası haline gelmiştir. Bu çalışma, deniz kirliliğinin en ciddi türlerinden biri olan petrol kirliliğini temizlemek için kullanılan yöntemleri inceleyecektir. Bu yöntemlerin pratik uygulamalarına odaklanacak hem geleneksel hem de teknolojik gelişmelerden kaynaklanan yenilikçi yaklaşımları değerlendirecek ve petrol döküntüsü müdahalesinin iyileştirilmesi ve daha fazla çevresel zararın önlenmesi için öneriler sunacaktır.https://doi.org/10.53472/jenas.158388
Modeling Optimal Pathways to a Triple Win in Air Quality, Climate, and Equity
No full text“Triple win” strategies in air quality are those that benefit health, climate, and equity. Traditional air pollution modeling estimates these outcomes based on simulated changes in emissions. Here, we develop an inverse modeling approach to identify optimal “triple wins” for the contiguous United States. We use receptor-oriented Bayesian optimization to derive spatially-explicit emission-reductions that meet national standards for fine particulate matter (PM2.5) concentrations while (1) reducing CO2 emissions and (3) reducing disparities in exposure to PM2.5. We compare our optimal solutions against a solution space of over a million runs derived from conventional “forward engineering” approaches. Our approach demonstrates important advantages over conventional methods. It is modular across space, sector, and priority set, and provides a data-driven and scalable framework for explicitly identifying multivariable solutions for air, climate, health, and equity.https://doi.org/10.26434/chemrxiv-2025-c6sn
Evaluating the Vulnerability of Forestry Supply Chains Through Fuzzy Cognitive Map
No full textIt is crucial to address the significant role of the supply chain in economic activity and its vulnerable areas. This research focuses on the forestry industry, where obtaining and maintaining the primary raw material source is notably more challenging than other supply chains. The primary objective of this study is to analyze vulnerability factors specific to the forestry supply chain (FSC) by modeling their interactions and potential influences on each other. Initially, relevant factors were defined through a comprehensive literature review, encompassing vulnerabilities both in the general supply chain and pertinent to the forestry industry, such as natural disruptions. Then, the relationships between these factors were modeled and simulated using an input-sensitive fuzzy cognitive map (FCM). A cognitive map was constructed based on expert opinions, facilitated by triangular fuzzy numbers to express expert judgments accurately. FCM simulations using a new reasoning mechanism were conducted to analyze the effects of FSC vulnerability factors on one another across three sustainability-themed scenarios: economically related vulnerabilities, socially related vulnerabilities, and environmentally related vulnerabilities. Supply chain structure, government support, and source availability were the main vulnerability factors influencing the overall resilience of the FSC. Environmental stressors such as natural disturbances and climate change, and economic shocks, were found to significantly impact FSC dynamics, highlighting the need for adaptive strategies and robust contingency planning. This research is significant for stakeholders in the forestry industry as it elucidates the vulnerability factors within the FSC and demonstrates how different vulnerabilities can influence one another.https://doi.org/10.33904/ejfe.1517968https://dergipark.org.tr/tr/pub/ejfe/issue/90288/151796
Hopf bifurcation in the shadow of extinction: Collaborating with epidemic dynamics through lethal mutations and declining ancestor infections
No full textThis study delves into the intricate realm of controlling Hopf and degenerate Hopf bifurcations within a Susceptible-Infectious-Susceptible model. Employing Braga's control theory as our cornerstone, we embark on an exploration of the model's dynamics, particularly focusing on an equilibrium point under the influence of control inputs. Our specific aim is to induce limit cycles associated with Hopf bifurcations of co-dimension 1 and 2. Through the integration of controllability principles, we endeavor to unravel the underlying mechanisms governing the manipulation of parameters to shape the occurrence and attributes of these periodic fluctuations. By examining how the behavior of infectious diseases changes in response to various control parameters, our study aims to provide a practical example of their application.https://doi.org/10.1016/j.biosystems.2025.105406https://pubmed.ncbi.nlm.nih.gov/3992229
Exploring the Role of Disruptive Periods in the Digital Transformation of Theatre and Performing Arts
No full texthttps://doi.org/10.1109/tem.2025.3555331https://doi.org/10.1109/TEM.2025.355533