11 research outputs found
Erratum: Biotemplating pores with size and shape diversity for Li-oxygen Battery Cathodes
No full textScientific Reports 7: Article number: 45919; published online: 04 April 2017; updated: 16 May 2017. The original version of this Article contained an error in the spelling of the author Cagla Ozgit-Akgun, which was incorrectly given as Çagla Ozgit-Akgun. This error has now been corrected in the PDF and HTML versions of the Article.</jats:p
Determination of Aflatoxin M1 and Ochratoxin A in Raw, Pasteurized and UHT Milk in Turkey
No full textBackground: Mycotoxins produced by yeast and fungi have toxic effects on human and animal health. Aflatoxin B1 (AFB1) is the most toxic hepatocarcinogen to mammals. Aflatoxin M1 (AFM1), which has been found in milk and dairy products, is the hydroxylated metabolite of AFB1. Aflatoxin M1 is formed by the cytochrome P450 enzyme in the liver. Ochratoxin A (OTA) is synthesized by Aspergillus and Penicillium species. Ochratoxin A is known to cause teratogenic, immunotoxic, nephrotoxic and carcinogenic effects. Due to the potential harmful effects on human and animal health, OTA has also been receiving increased attention globally; however, there is limited information on the presence of OTA in milk and dairy products. The aim of this study was to determine how mycotoxins impact the hygienic quality of raw and heat-processed milk.Materials, Methods & Results: In this study, a total of 105 milk samples were analyzed (35 raw, 35 pasteurized and 35 UHT) to identify AFM1 and OTA in raw, pasteurized and ultra-high temperature processing (UHT) milk. The levels of AFM1 were detected by using the enzyme-linked immunosorbent assay (ELISA). The milk samples were centrifugedin order to remove the fat content from the milk. After centrifugation, the upper cream layer was withdrawn with a pipette. The non-fat liquid portion was placed in wells at 100 μL for analysis. The concentration of AFM1 in the milk samples was analyzed by AFM1 test kit.The milk samples with AFM1 levels greater than 50 ng/L were confirmed by using High-Performance Liquid Chromatography (HPLC). An Ochratoxin A Serum / Milk ELISA test kit was used for the analyses of OTA. The analyses were made according to the manufacturer’s instructions, and samples were analyzed in duplicate. The absorbance value of milk samples was obtained from the ELISA plate reader at 450 nm. The mean value of AFM1 was found to be 19.54 ng/L in the milk samples. According to the European Commission (EC), the maximum limit for AFM1 in milk is 50 ng/L. In our study, eight (7.61%) of the 105 samples exceeded this limit. The mean value of OTA was found to be 119 ng/L in the milk samples. The relationship between milk type and levels of AFM1 was found to be significant at (P < 0.01). The mean value of AFM1 in pasteurized milk was found statistically significant and lower than raw milk (P < 0.05). The difference between levels of OTA and milk type was not statistically significant at (P > 0.05).Discussion: Milk is a great protein source especially for children in the age of growth. Yeasts such as Fusarium, Aspergillus and Penicillium produce mycotoxins that cause food, feed contamination. Owing to carcinogenic, mutagenic and teratogenic effects of AFM1, presence of AFM1 in milk samples may adversely affect human health. The presence of AFM1 in different contamination levels can be observed in milk and milk products. Factors such as ration type, climate conditions, feed storage conditions, feeding regime and health status of dairy animals may be effective in the occurrence of these contamination. It is necessary to establish legal limits by conducting effective research on the existence of OTA in animal-derived products. The existence of mycotoxins in milk and dairy products can be reduced by preventing the contamination of feed materials with yeast and molds used in the feeding of dairy cows. Milk is one of the most important protein source for the human, effective hygienic controls should be applied to prevent microbiological and chemical hazards. Our data suggest that heat-treated milk may also be dangerous to human health, mycotoxins contamination should be controled with monitoring programs routinely in milk and feed materials for food safety. Determination of Aflatoxin M1 and Ochratoxin A in Raw, Pasteurized and UHT Milk in Turke
The negotiation processes between remotely acculturating divorced coparents in relation to children's adjustment in urban Turkey: The moderating role of coparenting quality
No full textModern globalization and rising divorce rates in urban Turkey have brought visible reconfigurations in family and coparenting dynamics. Bridging remote acculturation, coparenting, and divorce literatures, perceived differences in parents’ cultural orientations to the remote U.S. culture and home culture (i.e., perceived parental remote acculturation gaps) could be an asset for children whose parents have a high-quality coparenting relationship; but these cultural gaps could also be a liability for children whose divorced coparents have a low-quality coparenting relationship. Therefore, the purpose of this study is to elucidate the moderating role of coparenting quality in the association between perceived parental remote acculturation gaps in two acculturation domains (behavior, identity) and children’s internalizing behaviors (anxiety, social withdrawal) as perceived by divorced mothers in urban Turkey.
Altogether, 177 divorced mothers from three cities in urban Turkey reported their own and their ex-partners’ remote acculturation to U.S. and Turkish cultures using the Turkish Vancouver Index of Acculturation (for Behavioral Acculturation) and an adapted version of Language, Identity, Behavior Scale (for Identity and Language Acculturation). Mothers also reported their perceptions of the coparenting quality with their ex-partners (Triangulation and Coparental Cooperation) and their joint child’s internalizing behaviors (Anxiety and Social Withdrawal) using the adapted version of Coparenting Questionnaire (CQ) and the Turkish Child Behavior Checklist (the corollary of the CBCL). Remote acculturation gaps were operationalized statistically using the interaction method in regression analyses.
Preliminary descriptive cluster analysis revealed two clusters of mothers based on their remote acculturation patterns. Relative to a “Traditional Turkish” cluster (n = 86, 48.6%), “AmeriTurk” mothers (n = 91, 51.4%) reported a stronger orientation to U.S. behaviors and identity, a weaker orientation to Turkish behaviors and identity, and higher English language competency. In the main analyses, a series of stepwise regression analyses revealed that only triangulation significantly moderated the link between the perceived gaps in parents’ American orientation (behavior: β = .240, p<.001; β = .267, p<.001 and identity: β = .210, p< .001) and children’s anxiety and social withdrawal, correspondingly. Results were near identical across behavior and identity domains of remote acculturation, except the link between perceived parental remote acculturation gaps and social withdrawal was only true for the behavior domain. Further exploration of three-way interactions revealed that the association between mothers’ Americanization and their children’s internalizing behaviors significantly differed as a function of fathers’ Americanization. First, under the conditions of high triangulation, children whose mothers had low American orientation paired with fathers who were perceived to have high Americanization had fewer internalizing behaviors. On the other hand, under the conditions of low triangulation, children whose mothers had low American orientation paired with fathers who were perceived to have high Americanization had more internalizing behaviors.
Results of the current study expanded our understanding of AmeriTurk mothers by examining three remote acculturation domains (behavior, identity, language) and highlighted the importance of triangulation in the association between parental remote acculturation gaps and children’s internalizing behaviors after divorce. Findings revealed that perceived parental remote acculturation gaps whereby mothers are not very Americanized but perceived fathers to be more Americanized may be protective for children with triangulating parents. In these globalizing divorced families in Turkey, children may realize that their divorced parents have different cultural worldviews and may expect an interparental clash; thus, when they are being pulled (i.e., triangulated) into the arguments, they may attribute the reason of the argument to the gap in their divorced parents’ degrees of cultural orientation. Hence, children’s positive appraisals (not blaming themselves and not feeling threatened) might protect them from the negative emotional consequences of triangulation. On the other hand, findings also showed that the same perceived parental remote acculturation gap may be bad for children of non-triangulating families. In these families, children may experience higher internalizing behaviors as they do not have the triangulation to deflect the blame off themselves. However, having coparents with similar cultural views who are able to communicate without including their children in interparental dialogues might alleviate children’s internalizing behaviors. Two Americanized non-triangulating parents might be using a different type of cultural brokering whereby they may navigate and blend their internalization of American culture. Taken together, study results underscored the idea that “one size doesn’t fit all” for all divorced families and took us one step closer to elucidating under what conditions parental remote acculturation gaps might be associated with coparenting and children’s adjustment. In conclusion, results, especially if they are replicated in other globalizing settings across the urban Majority World, suggest promising avenues to better understand divorced family dynamics and children’s adjustment in the context of remote acculturation. Future directions and implications were discussed.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-05-01The student, Cagla Giray, accepted the attached license on 2019-04-16 at 17:24.The student, Cagla Giray, submitted this Dissertation for approval on 2019-04-16 at 17:32.This Dissertation was approved for publication on 2019-04-17 at 13:13.DSpace SAF Submission Ingestion Package generated from Vireo submission #13687 on 2019-08-22 at 15:06:52Made available in DSpace on 2019-08-23T20:35:58Z (GMT). No. of bitstreams: 2
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Trends and emerging directions in battery manufacturing: A comprehensive bibliometric analysis
No full textThe expansive literature on battery manufacturing makes it challenging to identify recent trends and research priorities without advanced analytical techniques. Bibliometric analysis, leveraging text mining of author keywords, titles, and abstracts, provides a systematic approach to processing vast amounts of data. In this study, battery manufacturing research from the last decade was examined using techniques such as word clouds, co-occurrence networks, and trend analysis. The findings indicate that Singapore, Australia, and the USA lead in research impact, as reflected by higher average citation counts. The literature predominantly focuses on cell manufacturing, particularly for lithium-ion batteries. However, emerging technologies such as lithium-metal, solid-state, aqueous zinc-ion, and zinc-metal batteries have gained attention in recent years. Among components, anodes were the most studied, especially for lithium-ion and sodium-ion batteries, with significant focus on materials like graphene and carbon. Anode-free batteries are identified as an emerging trend, while solid-state battery research emphasizes interface engineering for solid electrolyte interphase (SEI) stability and the use of lithium lanthanum zirconate (LLZO) electrolytes. Performance improvement remains the dominant theme, encompassing innovations in thermal management and battery management systems (BMS). Recent years have also seen growing interest in smart manufacturing and sustainability topics, including life cycle assessment (LCA), second-life applications, disassembly, and recycling. Tab manufacturing research highlights advancements in multi-layer welding and tensile shear load assessment to improve mechanical strength and quality
A meta-analysis on the cardiac safety profile of domperidone compared to metoclopramide
No full textBackground: This meta-analysis aimed to assess the cardiac safety profile of domperidone treatment for the risk of cardiovascular (CV) event and QT prolongation. Methods: Data from nine studies involving 101,155 patients were used for the analysis of CV event risk, while data from eight studies involving 390 patients were used for the analysis of QT prolongation risk. Results: Meta-analysis findings suggested a significant increase in CV risk under domperidone as compared to no treatment for domperidone doses of >30 mg/day (OR: 3.14, 95% CI, 1.191 to 8.304, p = 0.021), no significant increase in QT prolongation event rates with domperidone (3.54%, 95% CI, 1.73% to 7.10%) and a significantly lower CV risk for domperidone than for metoclopramide (OR: 0.63, 95% CI, 0.58 to 0.70, p < 0.001). Conclusions: The present meta-analysis indicates that domperidone treatment may not be associated with an overall CV event risk increase at doses ?30 mg/day and does not result in QT prolongation. © Author(s) 2018.The authors would like to thank Cagla Ayhan, MD, and Prof Sule Oktay, MD, PhD, from KAPPA Consultancy Training Research Ltd (Istanbul, Turkey), who provided editorial support funded by Neutec Ar-Ge San and Tic AS (Turkey).This work was supported by Neutec Ar-Ge San and Tic AS (Turkey)
Post-seismic structural assessment: advanced crack detection through complex feature extraction using pre-trained deep learning and machine learning integration
No full textEarthquakes can often cause significant damage to buildings. After an earthquake, experts/managers need to make quick and accurate damage assessments. Traditionally, manual analysis processes have been widely used in damage assessment studies. The fact that these methods are time-consuming and based on human observation leads to certain limitations in damage assessment studies. In recent years, artificial intelligence techniques such as deep learning and machine learning have frequently been preferred in damage detection studies, and significant success has been achieved. This study aimed to automatically detect cracks/damages in the buildings in Diyarbakir city after the February 6, 2023 Kahramanmaras, Turkey earthquake. Our experimental dataset was collected by the researchers and named Kahramanmaras-Diyarbakir Earthquake Building Crack Dataset (KDBECD-2023). The data set consists of four categories in terms of damage level: undamaged, slightly damaged, moderately damaged, and heavily damaged buildings. DenseNet201 deep learning architecture and popular machine learning algorithms, Support Vector Machine, Random Forest, Decision Tree, and K-Nearest Neighbors (KNN) were used to classify cracks at different damage levels. In the experimental phase, feature extraction was performed with the DenseNet201 architecture. In addition, dimensional reduction was applied with the Principal Component Analysis method to reduce the computational complexity of the proposed hybrid study. According to the experimental results, the DenseNet201-KNN hybrid model gave the most successful result with an accuracy value of 94.62%. The results of this study can make important contributions to decision makers and experts in detecting cracks and damages in buildings after an earthquake. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025
Cultural variation in the correlates of flashbulb memories: An investigation in five countries
No full textFlashbulb memory (FBM) refers to the vivid memory for the context of learning about a public news event. Past research has identified a number of factors that influence the formation of FBM, such as the importance of the event, the experience of intense emotions, and the amount of post-event rehearsal. Although such factors may be universal in predicting FBM formation across cultures, they may differentially impact FBM given different cultural belief systems and practices. In the present study we investigated the moderating effect of culture for various predictors of FBM in five countries: China, Germany, Turkey, the UK, and the USA. Results indicated that the effects of national importance and rehearsal of the reception context were consistent across cultures. In contrast, culture moderated the effects of personal importance, emotionality, surprise, and event rehearsal. In all cases the effects of these variables were significantly smaller in the Chinese sample.Psychology, ExperimentalSSCI3ARTICLE3233-2401
On the early history of atomic layer deposition: most significant works and applications
No full textAtomic layer deposition (ALD) is a technique that has been instrumental in enabling the
semiconductor industry to maintain its adherence to Moore’s Law, and is becoming a gamechanger
in several other fields. A worldwide voluntary effort called “Virtual Project on the
History of ALD” (VPHA), open for everyone with an ALD background to participate, was
launched in summer 2013 to explore how the ALD concept was developed; which were the
first ALD experiments; when, where, why and by whom they were made. Earlier VPHA
outcomes were published at ALD 2014 (accessed through VPHA’s website http://vphald.com);
VPHA has made steady progress since then. Here we will present a conclusive
recommended reading list of the most significant early ALD publications and briefly review the
most important individual works and applications.
Acknowledgements: We are grateful for Dr. Tuomo Suntola’s general support during the
VPHA and for Dr. Aziz Abdulagatov’s and Annina Titoff’s assistance in initiating it. The VPHA
would not have been possible without the recent advances in professional social networking
and cloud computing. RLP acknowledges partial funding from the Finnish Centre of
Excellence in Atomic Layer Deposition. The author list is intentionally in alphabetical order
Atomic layer deposition for nanomaterial synthesis and functionalization in energy technology
No full textAtomic layer deposition (ALD) has been receiving more and more research attention in the past few decades, ascribed to its unrivaled capabilities in controlling material growth with atomic precision, manipulating novel nanostructures, tuning material composition, offering multiple choices in terms of crystallinity, and producing conformal and uniform film coverage, as well as its suitability for thermally sensitive substrates. These unique characteristics have made ALD an irreplaceable tool and research approach for numerous applications. In this review, we summarize the recent advances of ALD in several important areas including rechargeable secondary batteries, fuel cells, solar cells, and optoelectronics. With this review, we expect to exhibit ALD's versatile potential in providing unique solutions to various technical challenges and also hope to further expand ALD's applications in emerging areas.Center for Electrochemical Energy Science; Energy Frontier Research Center - U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences; U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Center for Advanced Surface Engineering, under the National Science Foundation [IIA-1457888]; Arkansas EPSCoR Program, ASSET III; University of Arkansas, Fayetteville, AR, USA; NSFC [51672011]; Guangdong Natural Science Funds [2015A030306036]; Shenzhen Science and Technology Innovation Committee [KQCX20150327093155293]SCI(E)REVIEW2133-154
Review Article: Recommended reading list of early publications on atomic layer deposition—Outcome of the “Virtual Project on the History of ALD”
No full textAtomic layer deposition (ALD), a gas-phase thin film deposition technique based on repeated,
self-terminating gas–solid reactions, has become the method of choice in semiconductor
manufacturing and many other technological areas for depositing thin conformal inorganic material
layers for various applications. ALD has been discovered and developed independently, at
least twice, under different names: atomic layer epitaxy (ALE) and molecular layering. ALE, dating
back to 1974 in Finland, has been commonly known as the origin of ALD, while work done
since the 1960s in the Soviet Union under the name “molecular layering” (and sometimes other
names) has remained much less known. The virtual project on the history of ALD (VPHA) is a
volunteer-based effort with open participation, set up to make the early days of ALD more transparent.
In VPHA, started in July 2013, the target is to list, read and comment on all early ALD
academic and patent literature up to 1986. VPHA has resulted in two essays and several presentations
at international conferences. This paper, based on a poster presentation at the 16th
International Conference on Atomic Layer Deposition in Dublin, Ireland, 2016, presents a recommended
reading list of early ALD publications, created collectively by the VPHA participants
through voting. The list contains 22 publications from Finland, Japan, Soviet Union, United
Kingdom, and United States. Up to now, a balanced overview regarding the early history of ALD
has been missing; the current list is an attempt to remedy this deficiency.peerReviewe
