Metal levels of canned fish sold in Türkiye: health risk assessment

This study analyzed 34 canned fish products, including 28 tuna specimens, 3 salmon specimens, 1 mackerel specimen, and 1 anchovy specimen, from 13 different brands purchased in Türkiye. The study aimed to determine metal/metalloid levels in canned fish and potential health risks for both children and adult consumers. The metal/metalloid levels in the samples were determined using an Inductively Coupled Plasma–Mass Spectrometer (ICP–MS), with the range of levels found as follows (mg/kg, ww): Fe (12.12–101.4), Cu (2.19–11.68), Zn (4.06–33.56), Se (0.24–10.74), Al (1.41–14.45), Cr (0.06–4.08), Pb (0.10–0.43), Cd (0.001–0.110), and As (0.01–0.13). Estimated weekly intake (EWI) levels were found that the consumption of canned fish products did not pose any risk based on the EWI levels and provisional tolerable weekly intake (PTWI) limits. However, three tuna samples had target hazard quotient (THQ) levels above the threshold (>1). Arsenic levels were found to increase the carcinogenic risk for child consumers if they heavily consumed 18 canned fish products, including 15 tuna, 2 salmon, and 1 mackerel. The maximum allowable consumption rates (CRmm) for each canned fish product were calculated monthly. Consequently, the consumption of canned fish by children can pose health risks

On the numerical schemes for Langevin-type equations

In this paper, a numerical approach is proposed based on the variation-of-constants formula for the numerical discretization Langevin-type equations. Linear and non-linear cases are treated separately. The proofs of convergence have been provided for the linear case, and the numerical implementation has been executed for the non-linear case. The order one convergence for the numerical scheme has been shown both theoretically and numerically. The stability of the numerical scheme has been shown numerically and depicted graphically

Teachers’ perception on the Relationship between Change Leadership and Organizational Commitment

The aim of this survey is to analyze the perception of teachers regarding the relationship between change leadership and organizational commitment. The study sample is 221 teachers working in the schools of Gaziantep, Sanliurfa and Mardin during the 2014-15 educational year since it is easier to reach them. The sample choice of our study has been made by applying the disproportionate cluster sampling method. According to the linear regression analysis results; change leadership predicts organizational commitment in a positive way. Also, multiple regression analysis results indicate that change-selling behaviors of change leadership predict organizational commitment significantly. It is beneficial for principals who want to increase the organizational commitment of teachers to exhibit change leadership behaviors in schools

The effects of age and individual size on metal levels of Serranus cabrilla (Linnaeus, 1758) from the Yeşilovacık Bay (Northeasthern Mediterranean, Turkey)

In this study, the relationships were determined between the macro (Na, Mg, P, K, Ca), potential toxic metal, As, and trace element, Zn, levels of the muscle tissue and fish size (length and weight) in Serranus cabrilla (Linnaeus, 1758) caught via bottom trawl boat from the Yeşilovacık Bay (Northeastern Mediterranean, Turkey). The potential toxic metal, macro and trace element levels of the muscle tissue of S. cabrilla were determined. Besides, the relationships between fish size and metal levels were investigated. For this study, S. cabrilla individuals of 0-1, 1-2 and 2-3 age groups were used. Min-Max total length of the age groups was determined as 10.5-11.8, 13.0-15.5 and 15.8-16.5 cm; Min-Max weights were 15.34-23.66, 30.41-43.82 and 41.89-58.18 g respectively. There was no statistical difference between the age groups according to the macro and trace element levels of muscle tissue. The Arsenic levels of the muscle tissue were high and in general displayed variation with age. The present study firstly reported the relationship between mineral-metal levels and individual size-age of S. cabrilla

Metal levels of canned fish sold in Türkiye: health risk assessment

This study analyzed 34 canned fish products, including 28 tuna specimens, 3 salmon specimens, 1 mackerel specimen, and 1 anchovy specimen, from 13 different brands purchased in Türkiye. The study aimed to determine metal/metalloid levels in canned fish and potential health risks for both children and adult consumers. The metal/metalloid levels in the samples were determined using an Inductively Coupled Plasma–Mass Spectrometer (ICP–MS), with the range of levels found as follows (mg/kg, ww): Fe (12.12–101.4), Cu (2.19–11.68), Zn (4.06–33.56), Se (0.24–10.74), Al (1.41–14.45), Cr (0.06–4.08), Pb (0.10–0.43), Cd (0.001–0.110), and As (0.01–0.13). Estimated weekly intake (EWI) levels were found that the consumption of canned fish products did not pose any risk based on the EWI levels and provisional tolerable weekly intake (PTWI) limits. However, three tuna samples had target hazard quotient (THQ) levels above the threshold (>1). Arsenic levels were found to increase the carcinogenic risk for child consumers if they heavily consumed 18 canned fish products, including 15 tuna, 2 salmon, and 1 mackerel. The maximum allowable consumption rates (CRmm) for each canned fish product were calculated monthly. Consequently, the consumption of canned fish by children can pose health risks

Types, limitations, and possible alternatives of peer review based on the literature and surgeons’ opinions via Twitter: a narrative review

This review aimed to illustrate the types, limitations, and possible alternatives of peer review (PR) based on a literature review together with the opinions of a social media audience via Twitter. This study was conducted via the #OpenSourceResearch collaborative platform and combined a comprehensive literature search on the current PR system with the opinions of a social media audience of surgeons who are actively engaged in the current PR system. Six independent researchers conducted a literature search of electronic databases in addition to Google Scholar. Electronic polls were organized via Twitter to assess surgeons’ opinions on the current PR system and potential alternative approaches. PR can be classified into single-blind, double-blind, triple-blind, and open PR. Newer PR systems include interactive platforms, prepublication and postpublication commenting or review, transparent review, and collaborative review. The main limitations of the current PR system are its allegedly time-consuming nature and inconsistent, biased, and non-transparent results. Suggestions to improve the PR process include employing an interactive, double-blind PR system, using artificial intelligence to recruit reviewers, providing incentives for reviewers, and using PR templates. The above results offer several concepts for possible alternative approaches and modifications to this critically important process

Hybrid reconnaissance mission to the 30 October 2020 Aegean sea earthquake and tsunami (Izmir, Turkey & Samos, Greece): description of data collection methods and damage

On 30 October 2020, an earthquake of Mw 6.9 hit the Aegean coasts of Turkey and Greece. The epicentre was some 14 km northeast of Avlakia on Samos Island, and 25 km southwest of Seferihisar, Turkey, triggering also a tsunami. The event has been followed by >4,000 aftershocks up to Mw 5.2 The Earthquake Engineering Field Investigation Team (EEFIT) has immediately gathered a team to conduct a hybrid reconnaissance study,bringing together remote and field investigation techniques. The mission took place between 16 November and 17 December, inclusive of three sets of field study carried out by the field crews for building damage assessment in the affected areas in Turkey and Greece under the coordination of the remote team. The mission also aimed to assess the viability of alternative data sources for an appraisal of the future viability of hybrid missions. This paper summarises the mission setup and findings, and discusses the benefits of and difficulties encountered during this hybrid reconnaissance activity

An Analysis on Multiculturality Attitudes of High School Students: The Case of Turkey

WOS: 000451824100004This study explores the links between multiculturality attitudes displayed by high school students and their ethnic identity, religious beliefs, self-identification, and place of residence. The study is based on questionnaires from 2823 students in 17 cities in seven geographical regions across Turkey. A five-dimension Multiculturality Attitude test was used, which consists of 21 items and was developed by the authors. The data were analyzed with the non-parametric tests Kruskal-Wallis and Mann-Whitney-U. According to the results, there are statistically significant differences across all categories of the scale