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Investigation of delays and connection stability in teleoperation via VR capabilities for remote exoskeleton-aided physiotherapy
No full text2025 International Conference on Rehabilitation Robotics-ICORR-Annual -- MAY 12-16, 2025 -- Chicago, ILThe research paper examines the challenges of remote control delays in exoskeleton-aided physiotherapy. It focuses on the implications of telerehabilitation requirements for safe treatment. As the global share of disabled and elderly people increases, the demand for effective teleoperated physiotherapy solutions rises, necessitating precise control over robotic systems. The study utilizes a mixed-methods approach to assess delays in communication between a rehabilitation exoskeleton and the control system's based on the digital twin in VR (virtual reality) components at different stages. Moreover, additional delays coming from distant operations are assessed. Key findings reveal that the average latency for joint control on shorter distances remains below 300 ms considered acceptable for comfortable manual teleoperation. The delays between setting the device's configuration and reaching it by a physical exoskeleton differ for particular joints and depend mainly on the torque-to-moment of inertia ratio. The total communication cycle should not exceed 400 ms, which can be further reduced by using a 6G network in the future or ADS (Automation Device Specification) communication protocol instead of the database. Ultimately, the study provides a foundation for developing algorithms that can mitigate delays and improve the efficacy of telehealth solutions with physically supportive devices.National Center for Research and Development [POLTUR5/2022/81/SmartEx-Twin/2023]The paper is based on the results of the Smart exoskeleton for remote rehabilitation with the digital twin technology - SmartEx-Twin project, financed in 2023-2025 (265,800 EUR), in the scope of scientific research and development works by the National Center for Research and Development (funding programme 5th Call for Proposals Poland-Turkey, contract number POLTUR5/2022/81/SmartEx-Twin/2023).Institute of Electrical and Electronics Engineers In
Türkçe Öğretmenliği Lisans Programlarının Öğrenci Profili: Devlet Üniversiteleri Örneği
No full textBu araştırmanın amacı Türkçe öğretmenliği lisans programlarına yerleşen öğrencilerin profillerini çeşitli açılardan incelemektir. Nitel araştırma modeliyle yürütülen çalışmada veri toplama tekniği olarak doküman incelemesi kullanılmıştır. Devlet üniversiteleriyle sınırlandırılan araştırmanın veri setini 71 eğitim fakültesindeki Türkçe öğretmenliği lisans programları oluşturmaktadır. Araştırmada bu programlarla ilgili olarak “Yükseköğretim Program Atlası”nda yer alan bilgilerden yararlanılmıştır. 2021, 2022 ve 2023 yıllarını kapsayan verilerin analizi betimsel analiz tekniği ile gerçekleştirilmiştir. Araştırma bulgularına göre Türkçe öğretmenliği lisans programlarının ilk yerleştirme sonuçlarına göre %100 doluluk oranına ulaştığı, programı tercih eden adayların çoğunlukla kız öğrencilerden oluştuğu ve yerleşen öğrencilerin bölgelere göre dağılımında İç Anadolu, Güneydoğu Anadolu ve Marmara bölgelerinin öne çıktığı belirlenmiştir. Programa yerleşen öğrencilerin öğrenim durumuna göre dağılımında “liseden mezun, daha önce üniversiteye yerleşmemiş” adaylar ilk sırada gelirken lise alanlarında “imam hatip”, “Türkçe matematik”, “fen ve sosyal bilimler”, “sosyal bilimler” alanları, lise türlerinde genel liseler, lise gruplarında ise “Anadolu Lisesi (Yabancı Dille Öğretim Yapan Resmi Liseler)” ve “İmam Hatip Lisesi/Anadolu İmam Hatip Lisesi/İmam Hatip Lisesi (Açıköğretim)” okulları ilk sırayı almıştır. Programa yerleşen öğrencilerin YKS Türkçe netlerinin yıllara göre kademeli şekilde artması ve adayların tercih listelerinde daha çok “Türkçe öğretmenliği” programlarına yer vermesi araştırmanın diğer bulguları olarak tespit edilmiştir
Sufi Movements on British Anti-Colonial Resistance in Bengal of Indian Subcontinent: A Study of Religious and Political Intersections
No full textThis article critically examines the resistance movements initiated and led by Sufi leaders against British colonial rule in the Bengal region of the Indian subcontinent, focusing on present-day Bangladesh and the Indian states of West Bengal, Tripura, and Assam. The study highlights significant historical events such as the Fakir Rebellion (1765), the Battle of Balakot led by Sayyid Ahmed Barelvi, the Bamboo Fort Movement led by Titu Mir, the Faraizi Movement initiated by Haji Shariatullah, and the Khilafat Movement, which aimed to protect the Ottoman Caliphate and resist British imperialism. It analyses the multifaceted resistance strategies employed by Sufi leaders in response to British imperial oppression. British colonial control in Bengal commenced with the defeat of Nawab Siraj-ud-Daulah at the Battle of Plassey in 1757 and lasted until the subcontinent's partition in 1947. During this period, Bengal's Muslim population faced significant social, cultural, and religious repression under colonial rule. Sufi leaders played an essential role in mobilising the Bengali Muslim community around the concept of Ummah, organising a formidable resistance against colonial authorities. This study employs qualitative research methods, exploring the Sufi movement's resistance to British colonialism in Bengal and focusing on its influence on the Muslim community's political and cultural identity formation
YÜKSEK ENFLASYONDA FARKLI VARLIK SINIFLARININ PERFORMANSI VE ETKİN PORTFÖY YÖNETİMİ
No full textBu çalışma, Türkiye’de yüksek enflasyon koşullarında yatırımcıların reel getirilerini korumalarına yönelik optimal bir portföy tasarlamayı amaçlamaktadır. Bu doğrultuda, Mayıs 2013 – Ağustos 2024 dönemine ait enflasyon, BIST100, USD/TRY, altın (GAUTRY) ve Türkiye Konut Fiyat Endeksi (KFETR) verileri kullanılmıştır. Öncelikle, Fisher denklemi aracılığıyla gerçekleştirilen regresyon analizi sonucunda, USDTRY ve GAUTRY’nin belirli ölçüde enflasyona karşı koruma sunduğu; ancak KFETR’nin en güçlü korumayı sağladığı belirlenmiştir. Buna karşılık, hisse senetlerinin (BIST100) enflasyonist baskılara karşı anlamlı bir koruma etkisi göstermediği görülmüştür. Sonrasında, enflasyona göre ayarlanmış ortalama-varyans optimizasyonu yöntemiyle bir portföy oluşturulmuştur. Bu yaklaşım, nominal yerine reel getirileri dikkate alarak varlıkların enflasyon riskine duyarlılığını optimize etmeyi hedeflemiştir. Elde edilen sonuçlar, özellikle 2023 yılı sonrasında portföy getirilerinin enflasyon oranını anlamlı biçimde geride bıraktığını ve yatırımcılara reel getiri sağladığını göstermektedir. Böylece, gayrimenkul (KFETR), altın (GAUTRY) ve kısmen dövizin (USDTRY) yer aldığı stratejik varlık tahsisinin, Türkiye gibi yüksek enflasyon dönemleri yaşayan ekonomilerde kısa-orta vadede etkin bir koruma sunduğu ortaya konmuştur. Ancak, daha uzun dönemli yatırım perspektifine sahip yatırımcıların, döviz ve altının bazı dönemlerde enflasyonun gerisinde kalabileceğini dikkate alması gerekebilir. Bu bulgular, yatırımcılar ve portföy yöneticileri açısından enflasyon riskini azaltmaya yönelik bir analiz sunmakta ve kısa-orta vadeli varlık yönetim stratejileri açısından önemli bir katkı sağlamaktadır
Atmospheric Trace Metal Exposure in a 60-Year-Old Wood: A Sustainable Methodological Approach to Measurement of Dry Deposition
No full textUrban trees are essential in improving environmental quality and enhancing human welfare in urban areas. They are being utilized increasingly as biomonitors of air and dust-borne heavy metals through dendrochemistry and comparative analytical methods. This study investigated the foremost concern essential nutrient metals, including aluminum (Al) and iron (Fe); also trace metals (cadmium (Cd), chromium (Cr), cobalt (Co), nickel (Ni), copper (Cu), and lead (Pb)) in worldwide-distributed trees in units of mg kg(-1 )dry weight (d.w). For retrospective analysis, we hypothesized that its feasibility as a bioindicator of air pollution in D & uuml;zce, T & uuml;rkiye, among the tree species should be assessed. Digested tree wood samples were processed via inductively coupled plasma optical emission spectrometry (ICP-OES) for all metals to test this hypothesis. Pearson's correlation analysis and principal component analysis were utilized to determine the origin of elements. The results showed that (i) the mean concentrations of the species were presented to be Fe (156 mg kg(-1) d.w) > Al (100.56 mg kg(-1) d.w) > Cr (15.82 mg kg(-1) d.w) > Cu (12.43 mg kg(-1) d.w) > Pb (6.76 mg kg(-1) d.w) > Ni (5.98 mg kg(-1) d.w) > Co (2.16 mg kg(-1) d.w) > Cd (0.47 mg kg(-1) d.w); ii) analysis of the bioconcentration factor (BCF) and metal accumulation index (MAI) showed that the maximum BCF and MAI value was stored in the Cupressus arizonica (2.30 for Pb) and Robinia pseudoacacia (70.65) in all species; iii) the tree woods were also capable of discriminating between affected areas, as sites near industrial and vehicular traffic indicated higher metal content. For this reason, it can be deduced that C. arizonica wood is a potentially suitable sink of atmospheric metal
İntikamın İzleri: Tanzimat Romanlarında Adalet ve Hesaplaşmanın Yansımaları
No full textThis study aims to analyze the theme of revenge in the Turkish novels of the Tanzimat Period in the contexts of the search for justice and reckoning. With the Tanzimat literature, the Western novel genre was introduced into Turkish literature and the psychological conflicts of the individual and social issues began to be dealt with in more depth. While the social function of the novel genre is taken into consideration, it is seen that individual reckoning, moral collapse and the concept of justice are also questioned through this new genre. In this context, Ahmet Mithat Efendi's novels Hasan Mellah or Mystery in a Secret, Georgian Girl or Revenge and Dürdane Hanım, Namık Kemal's İntibah and Nabızade Nazım's Zehra are analyzed. Throughout the study, it was observed that the theme of revenge was treated with a more positive motivation towards the establishment of justice in some works. In others, it is realized that it turns into a destructive passion linked to individual anger, jealousy and moral degeneration. Especially in narratives in which female characters are at the center, revenge is also dealt with as the expression of repressed emotions, while it is also constructed based on the search for honor and rights in both male and female characters. In Tanzimat novels, revenge is not only a feeling of revenge. This emotion turns into a multi-layered narrative tool in which social values and individual identity are questioned. In this respect, the study contributes to understanding the world of mentality of the period through literary texts. One can also gain insight into the moral preferences of Tanzimat writers on the individual-society axis. In addition, the idea that revenge is sometimes a legitimate means to achieve justice and sometimes a dangerous deviation that leads to the destruction of the individual is emphasized.Bu çalışma, Tanzimat Dönemi Türk romanlarında intikam temasını adalet arayışı ve hesaplaşma bağlamlarında incelemeyi amaçlamaktadır. Tanzimat edebiyatı ile birlikte Batı kaynaklı roman türü Türk edebiyatına dahil olmuş, bireyin ruhsal çatışmaları ve toplumsal meseleler daha derinlikli şekilde işlenmeye başlanmıştır. Roman türünün toplumsal işlevi göz önüne çıkarken bireysel hesaplaşmaların, ahlaki çöküşlerin ve adalet kavramının da bu yeni tür aracılığıyla sorgulandığı görülür. Bu bağlamda, Ahmet Mithat Efendi'ye ait Hasan Mellah yahut Sır İçinde Esrar, Gürcü Kızı yahut İntikam ve Dürdane Hanım, Namık Kemal'in İntibah ve Nabızade Nazım'ın Zehra adlı romanları incelenmiştir. Çalışma boyunca intikam temasının bazı eserlerde adaletin tesisi yönünde daha olumlu sayılabilecek bir motivasyonla işlendiği görülmüştür. Bazılarında ise bireysel öfke, kıskançlık ve ahlaki yozlaşmayla bağlantılı yıkıcı bir tutkuya dönüştüğü fark edilir. Özellikle kadın karakterlerin merkezde olduğu anlatılarda intikam, bastırılmış duyguların dışavurumu olarak da ele alınırken hem kadın hem erkek karakterlerde onur ve hak arayışına dayalı olarak da kurgulanmaktadır. Tanzimat romanlarında intikam, yalnızca bir öç alma duygusu değildir. Bu duygu, toplumsal değerlerin ve bireysel kimliğin sorgulandığı çok katmanlı bir anlatı aracına dönüşür. Bu yönüyle çalışma, edebi metinler aracılığıyla dönemin zihniyet dünyasını anlamaya katkı sunmaktadır. Tanzimat yazarlarının birey-toplum eksenindeki ahlaki tercihlerine dair de fikir edinilebilmektedir. Ayrıca, intikamın bazen adaleti sağlama yönünde meşru bir araç, bazen ise bireyin yıkımına sebep olan tehlikeli bir sapma olduğu düşüncesi öne çıkarılmaktadır
Pre-service Classroom Teachers' First Step to Teaching: Micro Teaching Practices
No full textIn the study, it is aimed to reveal the effects of the practices carried out within the scope of the micro teaching course on the development of pre-service classroom teachers' professional knowledge, content knowledge and general culture-ability and their cognitive perceptions towards the concept of micro teaching. The research was conducted with 26 (14 male and 12 female) pre-service teachers studying at the Faculty of Education, Department of Classroom Education in the 2022-2023 academic year of a state university. Exploratory sequential design from mixed research was used in the study. As data collection tools; Micro Teaching Method Measurement and Evaluation Form (MTMMEF) was used to reveal the effectiveness of micro teaching method through peer evaluations, word association test was used to reveal the cognitive perception of the concept of micro teaching (MTWAT), and semi-structured interview form was used to reveal the views on the concept of micro teaching. While parametric analysis methods were used in the quantitative part of the study, content analysis was used in the qualitative part. According to the findings obtained from the research, it was concluded that micro teaching method had positive effects on the development of pre-service teachers' teaching professional knowledge, content knowledge and general culture-abilities and that they had various opinions about the advantages and disadvantages of micro teaching method. In addition, it was revealed that they had cognitive perceptions about the development of teaching professional knowledge, content knowledge and general culture- abilities, the nature of micro-teaching method, evaluation processes and peer teaching
Tetra-Cationic Distibane Stabilized by Bis(?-iminopyridine) and Its Reactivity
No full textThe work establishes the salt of a tetra-cationic distibane, [L2Sb2][CF3SO3]4 = [1]2[OTf]4 (CF3SO3 = OTf), stabilized by a bis(alpha-iminopyridine) ligand L, defying the Coulombic repulsion. The synthetic approach involved a dehydrocoupling reaction when a mixture of L and Sb(OTf)3 in a 1:1 ratio was treated with Et3SiH/LiBEt3H as the hydride source. Compound [1]2[OTf]4 was also achieved from [LSbCl][OTf]2 as a precursor and using Et3SiH. Dissolution of [1]2[OTf]4 in polar solvents unveiled the formation of the persistent L-stabilized dicationic Sb(II) radical monomer [1][OTf]2, while the addition of Me3SiOTf regenerated the dimer in the salt [1]2[OTf]4. The homolytic cleavage of the Sb-Sb bond in [1]2 4+ has manifested in exchange reactions between [1]2[OTf]4 and Ph2Ch2 (Ch = S, Se), giving [LSb(SPh)][OTf]2 = [2][OTf]2 and [LSb(SePh)][OTf]2 = [3][OTf]2, respectively, in acetonitrile. Reaction between [1] 2 [OTf]4 and p-benzoquinone gave [L2Sb2(C6H4O2)][OTf]4 = [4][OTf]4. An interesting oxygen atom insertion reaction occurred when [1]2[OTf]4 was treated with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) to give [L2Sb2O][ OTf]4 = [5][OTf]4. The oxo-bridged compound [5][OTf]4 was also obtained from exposure of [1]2[OTf]4 in open air. The strong Mn-Mn bond in [Mn2(CO)10] could be cleaved by reacting with [1]2[OTf]4 in the presence of pyridine to form [LSbMn(CO)5][ OTf]2 = [6][OTf]2. On the other hand, the reaction between [Co2(CO)8] and [1]2[OTf]4 gave the oxidative addition product [L2Sb2Co(CO)3][OTf]3 = [7][OTf]3. The compounds were characterized both in the solid and solution states. Computational studies gave a comprehensive understanding of the experimental findings.SERB India [SPF/2022/000046, CRG/2022/000673]; Alexander von Humboldt Foundation-Experienced Researchers ProgramThe authors are grateful to SERB India SPF/2022/000046, CRG/2022/000673, and the Alexander von Humboldt Foundation-Experienced Researchers Program for their support
Enhancing firm performance and sustainability through creativity-oriented HRM and quality management: the mediating role of commercialization in the IT sector
No full textPurposeThe research examines the impact of creativity-oriented human resources management (HRM) and quality management (QM) on firm performance, social sustainability and environmental performance, focusing on the mediating role of commercialization.Design/methodology/approachData were collected from 527 experts based in Istanbul with at least 5 years of experience in the information technologies (IT) sector. The sample includes a demographic distribution according to age ranges and educational qualifications. Using a survey containing 47 scales, confirmatory factor analysis (CFA) and structural equation modeling (SEM) analyzes were conducted through Jamovi 2.3.28.FindingsThe results show that both creativity-oriented HRM and QM positively affect commercialization. In addition, commercialization positively affects firm performance, social sustainability and environmental performance, thus establishing a mediating role in the relationship between management practices and performance results.Research limitations/implicationsThe research is limited to the IT sector in Istanbul, Turkey, and may not be generalizable to other regions or sectors. Future research may expand geographic and sectoral coverage to confirm and extend these findings.Practical implicationsCompanies can leverage creative HRM and QM strategies not only to increase commercialization efforts but also to achieve superior firm performance, social sustainability and environmental outcomes. This highlights the strategic role of HR and quality initiatives in driving overall business success.Social implicationsIn the research, it is stated that creativity-oriented HR is important to promote human capital as an important driver of performance improvement, supported by the resource-based view (RBV) theory. Also, by supporting the dynamic capabilities theory, by promoting quality and creativity, innovations can be better commercialized and both performance outcomes and sustainability results can be positively affected.Originality/valueThis research provides new insights into the mediating effects of commercialization between internal management practices and broad performance measures in the IT sector. It underlines the importance of promoting innovative HR and quality practices to achieve sustainable business performance
Multimodal repair initiations in video-mediated EFL classroom interactions: Focus on screen-based and embodied actions
No full textThe recent COVID-19 pandemic has prompted the integration of numerous digital teaching tools into educational practices conducted on various videoconferencing platforms with geographically dispersed learners. In video-mediated interactional settings characterized by interactional asymmetry and limited visibility of non-verbal cues (e.g., gestures, gaze, or body language), embodiment is notably one of the most affected interactional elements by the local configurations of interactional context. This restricted access to participants' embodied actions due to fractured video-frames poses challenges in maintaining intersubjectivity in video-mediated instructional activities. However, despite playing an essential role in repair, multimodal practices addressing interactional breakdowns have remained largely unexplored in online classrooms. Adopting a multimodal conversation analytic approach to the examination of 67 h of screen-recorded videomediated English as a Foreign Language (EFL) classroom interaction, this study explores the deployment of multimodal repair initiation practices to maintain the progressivity of interaction and pedagogy. The findings show that by initiating repair through both embodied and screenbased actions to address the students' dispreferred responses, the teacher promotes self-repair and builds interactional space for the students. Revealing how self-repair -a preferred practice in most L2 pedagogical settings- can be transferable to fully online, video-mediated classroom environments, this study brings new insights into language teaching practices in such educational settings