138 research outputs found
Tracing time through cuticular clues: the role of rearing conditions and generational divergence in Lucilia sericata (Meigen, 1826) (Diptera: Calliphoridae)
No full textThe chemical profiles of the cuticle of adult flies are highly influenced by environmental factors and generational variation, although the extent and mechanisms of these influences are still poorly understood. This research rigorously investigates the influence of rearing environment and generational changes on the cuticular hydrocarbon (CHC) profiles of adult flies collected from the natural environment in Swindon (UK), in June 2019. Gas chromatography-mass spectrometry (GC-MS) was used to analyze the hydrocarbon profiles. Then, chemometric analysis was applied to determine the chemical variation patterns, allowing the samples to be classified according to their chemical fingerprints. Significant differences in hydrocarbon composition were found between laboratory-maintained and field-collected specimens, underscoring the impact of environmental conditions on CHC expression. Additionally, gradual modifications in hydrocarbon content were detected across generations raised in the controlled environment, suggesting the involvement of adaptive physiological or epigenetic mechanisms. These findings contribute valuable insights into cuticle plasticity, highlighting its relevance in forensic entomology, chemical ecology, and insect evolutionary biology. The implications also extend to forensic investigations, where cuticular hydrocarbon profiles (CHCs) demonstrate potential for enhancing postmortem interval (PMI) estimation accuracy and species identification in criminal cases. By demonstrating quantifiable differences in CHC composition across rearing conditions and generations (AUC values ≥0.92 for all comparisons), this study provides a foundation for the broader application of chemical markers in forensic investigations.First author (Dr. Canan Kula) received sponsorship from the Ministry of National Education of the Republic of Türkiye.Turkish Journal of Entomolog
Cuticular hydrocarbon analysis for the identification, ageing and geographical variations of forensically important blowflies
No full text© Cranfield University 2022. All rights reserved. No part of this
publication may be reproduced without the written permission of the
copyright ownerCalliphoridae (blowflies) are important for forensic entomology as they are often the first
group of insects to inhabit decomposing remains. To estimate the minimum post-mortem
interval (PMImin), blowfly samples are collected from the crime scene and identified, and
then the age needs to be determined for each species. Accurate species identification is
crucial, as varied species have different life-stage timings. Previous studies on Diptera
have shown the possibility of using cuticular hydrocarbon (CHC) analysis to aid species
identification, ageing and ultimately calculating PMImin. However, since prior research
was conducted at constant temperatures, the effect of fluctuating temperature on chemical
profiles and the stability of CHCs in the field remains unclear. This thesis aims to examine the CHC profiles of Lucilia sericata and Calliphora vicina
reared outdoors in the United Kingdom, Germany and Turkey in terms of species, age
and inter-population differences. The first study investigates whether the stability of the
CHC profiles of two colonies reared outdoors can be used to identify species-specific
characteristics. The second examines the effects of fluctuating and constant temperatures
on the CHC profiles of the life cycle stages and the use of their chemical profiles for age
estimations. The final study aims to determine the differences in CHC profiles of the same
species living in different habitats and whether they can be used to distinguish
populations. The CHC profiles of the samples were extracted and analysed using Gas
Chromatography-Mass Spectrometry (GC-MS). The statistical interpretation was carried
out using Principal Component Analysis (PCA). The results showed that CHC profiles
differed significantly between developmental stages by species, age, rearing temperature
and geographical location. This study highlights that despite environmental factors
affecting the stability of CHC compositions, the CHC analysis can be used as a
complementary tool for identifying and ageing the species. Furthermore, the effects of
ambient temperature and geographical variation on CHC profiles may be useful for
determining inter-population variations.Ph
Women in cuffs by Canan Tan’s writing
No full textTürk Edebiyatı’nda hapishane temini daha ziyade siyasi sebeplerden dolayı kısa ya da uzun süreli hapis cezasına çarptırılmış yazarların işledikleri görülmektedir. Orhan Kemal, Kemal Tahir, Kerim Korcan, Çetin Altan, Nihal Atsız, Erdal Öz, Rıfat Ilgaz, Abdülkadir Billurcu, Remzi Çayır, Sevgi Soysal, Feride Çiçekoğlu hayatlarının bir döneminde yaşamak zorunda kaldıkları bu mekândaki gözlem ve tecrübelerini edebî esere taşımış yazarlarımızdan bazılarıdır. Hapishane temini roman türünde işleyen yazarlarımızdan Füruzan ve Canan Tan ise yargı süreci sırasında veya yargı kararıyla bu mekânı tanımış yazarlardan değildirler. Füruzan 47’liler adlı romanında yaşamadığı bu mekânda yaşayan kadınları anlatır. Ancak diğer yazarlar gibi cezaevini irdelemek yerine 12 Mart döneminde kadının cezaevi ile bağlantısı üzerinde durur. Günümüzün çok okunan yazarlarından araştırmamıza konu olan Kelepçe romanının yazarı Canan Tan ise mahkûm sıfatıyla değil sadece gözlemlemek ve eserine malzeme toplamak amacıyla cezaevinde bulunmuştur. Bu çalışmada Canan Tan’ın 2016 yılının nisan ayında yayımladığı ve kadın mahkûmların cezaevi hayatlarından bir kesit sunarken onların toplum nezdinde suçlu damgası yemelerine sebep olan süreçten de söz eden Kelepçe adlı romanı değerlendirilecek, suçu oluşturan psikolojik ve sosyolojik sebeplerin esere nasıl yansıdığı üzerinde durulacaktır.It can be seen that prison theme is mostly used by the authors who are sentenced to short or long term punishments for political reasons in Turkish literature. Orhan Kemal, Kemal Tahir, Kerim Korcan, Çetin Altan, Nihal Atsız, Erdal Öz, Rıfat Ilgaz, Abdülkadir Billurcu, Remzi Çayır, Sevgi Soysal, Feride Çiçekoğlu are some examples of the Turkish authors who carried their experiences in this harsh environment to their literary works. Füruzan and Canan Tan differ from other writers who used prison theme in their novels by not knowing this place by a consequence of legal punishment. In her novel 47’liler, Füruzan tells the story of the women who lives in this place which she herself did not live. Yet, she scrutinizes the relationship between woman and prison in 12 Mart era instead of focusing to prison. One of the bestselling writers of our time and the author of novel Kelepçe which is subject of our study, Canan Tan, set foot in prison not as a prisoner but as an observer with the purpose of gathering material for her novel. In this paper, the novel Kelepçe, which is written by Canan Tan and published in April 2016, will be reviewed and its portrayal of psychological – sociological background of crime will be examined. Kelepçe presents a view to the life of the women inmates, and also narrates the process which ends up with stigmatizing of them in public opinion
The temperature effect on the cuticular chemical profile of Lucilia sericata blowfly larvae
No full textForensic entomology has become increasingly important in the last decade. In cases of homicide, suicide or suspicious death, insect specimens are taken into consideration as acceptable evidence like blood, fingerprint or any other biological materials. When solving criminal cases, it is essential to determine the time since death or post-mortem interval (PMI). Entomological evidence can provide valuable information about the prediction of the post-mortem interval and where the death occurred.Forensic entomology, like many other fields in forensic sciences, has been developing using new technologies. Cuticular hydrocarbon (CHC) analysis has become a useful tool for identifying and ageing forensically important blowfly species. Variation in hydrocarbon profiles is significant for climatic adaptation, protection against dehydration and desiccation. The effect of other variables, such as environmental climate and geographic region, and how this may change the CHC structure is not known. In the literature, there are some studies showing differences in the hydrocarbon structure of beetles, fruit flies and house flies when reared at different temperatures. Although there are many studies on the relationship between temperature effect and development time of blowfly species using classical entomology methods, no studies have been conducted using cuticular hydrocarbon analysis. In this regard, this study has been a first in the field of forensic entomology. In this study, L. sericata collected from the wild were used for oviposition. Once eggs were laid on the oviposition medium, the Petri dish containing the meat was transferred to incubators at 14 ºC, 25 ºC and 34ºC. The cuticular hydrocarbons were chemically extracted and analysed for post-feeding larvae. The effect of temperature changes on the cuticular structure was investigated by using Gas Chromatography-Mass Spectrometry.Canan Kula is supported by the Turkish Ministry of National Education for her PhD research
Ball games: general theory and Bball-to-Ball games
No full textIn this second volume, in particular, Canan lists and describes ball games, such as basketball and basket ball, among others. The collection aims to learn about, catalog, and describe ball sports games. Using solid theoretical foundations, the author seeks to build a general theory of ball sports games that can cover both the understanding and the analysis and description of the games in question.O segundo volume, em especial, Canan elenca e descreve os jogos de bola ao cesto, como o basquete e o cestoball, entre outros. A Coleção objetiva conhecer, catalogar e descrever jogos esportivos de bola. Utilizando-se de bases teóricas sólidas, o autor busca construir uma teoria geral dos jogos esportivos de bola que possa abranger tanto a compreensão quanto a análise e descrição dos jogos em questão
Protectors of the order in Canan Tan's moral-based two novels
No full textEdebî eserler, muhtevalarına göre bireysel veya toplumsal birçok sorunun geniş kitlelere ulaşmasını sağlayabilir. Bir romanda, şiirde ya da denemede ele alınan husus, okurda farkındalık oluşturarak ön yargıları ve mevcut algıları değiştirebilir. Aynı şekilde okurun, daha önce fikir sahibi olmadığı bir hususta ön bilgi edinmesine yardımcı olabilir. Bireysel konulardan ziyade toplumsal sorunlara değinen edebî eserler, aynı zamanda birer sosyolojik belge niteliğindedir. Eserlere konu olan meseleler, toplumun önemli bir kesimini doğrudan ya da dolaylı olarak etkileyebilir. Sahip olduğu geniş anlatım imkânıyla romanlar, bu bağlamda hem Türk edebiyatında hem de dünya edebiyatında çocuk haklarından sürgünlere kadar birçok konuyu ele almıştır. 2000’li yıllarda ve sonrasında yayımladığı romanlarla Canan Tan, süregelen bazı sosyal sorunları gündemine alır. Yazarın deneyim ve gözlemlerinden de istifade ederek kaleme aldığı romanlarda çeşitli konular işlenir. Bunlardan Piraye ile Pembe ve Yusuf, töre unsurlarının yoğun bir şekilde ele alındığı romanlar olarak dikkatleri çeker. Bu çalışmada, Canan Tan’ın Piraye ile Pembe ve Yusuf romanlarında törelerin ne şekilde uygulandığı ve bu uygulamalarda etkin olan kişilerin hangi kaygıları taşıdığı incelenmiştir. Daha çok olumsuz örnekler üzerinde durulmuş ve bazı törelerin insanları nasıl mağdur ettiği, metinlerden hareketle izah edilmeye çalışılmıştır.Literary works, depending on the content of
individual or social issues can reach a wider
audience. In a novel, poetry or essay, the matter
in hand can change the prejudices and existing
perceptions by creating awareness in the reader.
In the same way, it can help the reader to obtain
prior knowledge in a subject that he/she has no
idea about before. The literary works referring to
social problems rather than individual issues are
also a sociological document. Issues that are
subject to works can either directly or indirectly
affect a significant part of society. In this
context, novels with broad expression have
covered many issues ranging from children's
rights to exile in both Turkish literature and
world literature. Canan Tan, with her novels
published in the 2000s and after, puts some
ongoing social problems on her agenda. Various
issues are addressed in the novels written by the
author, employing her own experiences and
observations. Piraye and Pembe and Yusuf draw
attention as the novels in which elements of
morals were intensely discussed. In this study, it
is examined how the ceremonies were performed
in Canan Tan's Piraye and Pembe and Yusuf
novels and the concerns of the people who are
effective in these practices. Negative examples
are emphasized more and how some of these
morals caused the people to suffer is explained
by means of the texts
Determination of the Objective Reason Condition in the Conclusion and Renewal of Fixed Term Employment Contracts
No full textAn employment contract may be executed for a fixed or indefinite term. An indefinite-term employment contract is the rule of thumb, whereas a fixed-term contract is an exception. According to Article 11 of the Employment Code No 4857, a fixed-term contract may be signed when it is based on an objective reason, such as fixed-term work, the completion of a certain job, or the emergence of a relevant fact. There is no similar provision in other employment codes, which is why concluding a fixed-term employment contract with a worker covered by the Employment Code is more difficult than terminating workers excluded from the said code. This strict structure to conclude a fixed-term employment contract of the Employment Code has been criticized by the doctrine. According to Article 11, paragraphs 2 and 3, of the Employment Code and Article 430 of the Obligation Code No. 6098, to renew a fixed-term employment contract with all workers, an objective reason is required. This article explains what objective reason means and if such a condition is suitable and evaluates the debates in the doctrine and legal studies regarding the objective reason condition in the conclusion of fixed-term employment contracts, regulated in Article 11 of the Employment Code. Further, the author discusses whether an exception should be introduced into the objective cause condition. This article next examines the objective reason condition for the renewal of fixed-term employment contracts. In this framework, in addition to the objective reason condition, the application of a time limit and a number limit will be evaluated to prevent abuse in the renewal of employment contracts by using successive fixed-term employment agreements
Türk Tiyatro Kurumlarının Instagram Kullanımlarının Diyalojik İletişim Açısından İncelenmesi
No full textArslan, Canan (Dogus Author)Te advances in social media applications have changed the way we communicate, interact, share and conduct our relationships. In our “web society”, generating dialogical communication is becoming more and more important. Te web 2.0 is enabling organizations to engage in dialogue with their audience, thus transforming their communication into a more interactive manner. Te efects of this transformation is also witnessed in the way theater institutions are communicating
with their publics. Due to the dialogic communication fostered by web 2.0 tools, the relationshipbetween theaters and their audience is becoming more interactive, intersubjective and collaborative.Te aim of this article is to assess the level of dialogic communication developed by theaters on the internet, by analyzing the use of Instagram and Instagram stories of seven theatres from public and private sector in Turkey. Taking Kent and Taylor’s dialogical principles as its assessment
criteria, the article aims to shed a light on how Instagram is to be used dialogically by theater institutions to foster a strong level of communication and thus fulfill their goal of enlightening the society
“We are much closer here”: exploring the use of WhatsApp as a learning environment in a secondary school mathematics class
No full textIn this study, we examined a mathematics teacher’s communicative acts on an instant messaging tool, WhatsApp, and its role in creating a sustained learning environment between secondary-school students and a teacher in Turkey. The interactions of a mathematics teacher and his students (n = 38) over two years were explored. The WhatsApp group increased interaction in out-of-school hours. Analysis of the teacher’s communicative acts was the leading force that encouraged the group to continue to interact. The teacher portrayed an informal and sincere presentation of himself on social media. A constructive communication style between teacher and students was fostered by connecting through WhatsApp in out-of-school hours, when the teacher’s informal communicative acts have facilitated their learning. © 2021, The Author(s), under exclusive licence to Springer Nature B.V
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