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Yayın Abstract book(Maltepe Üniversitesi, 2019) Çakallı, Hüseyin; Savaş, Ekrem; Sakallı, İzzet; Horgan, Jane; Daly, Charlie; Power, James; Kocinac, Ljubi^sa; Cavalanti, M. Marcelo; Corrˆea, Wellington J.; Özsarı, Türker; Sep´ulveda, Mauricio; Asem, Rodrigo V´ejar; Harte, Robin; Açıkgöz, Ahu; Esenbel, Ferhat; Jabor, Ali Ameer; Omran, Ahmed abd-Ali; Varol, Banu Pazar; Kanetov, Bekbolot; Baidzhuranova, Anara; Saktanov, Ulukbek; Kanetova, Dinara; Zhanakunova, Meerim; Liu, Chuan; Yıldırım, Esra Dalan; Şahin, Hakan; Altun, Ishak; Türkoğlu, Duran; Akız, Hürmet Fulya; Mucuk, Osman; Motallebi, Mohammad Reza; Demir, Serap; Şahan, Tunçar; Kelaiaia, Smail; Yaying, Taja; Noiri, Takashi; Vergili, Tane; Çetkin, Vildan; Misajleski, Zoran; Shekutkovski, Nikita; Durmishi, Emin; Berkane, Ali; Belhout, Mohamed; Es-Salih, Aries Mohammed; Sönmez, Ayşe; Messirdi, Bachir; Derhab, Mohammed; Khedim, Tewfik; Karim, Belhadj; Affane, Doria; Yarou, Mustapha Fateh; Yılmaz, Fatih; Sertbaş, Meltem; Bouchelaghem, Faycal; Ardjouni, Abdelouaheb; Djoudi, Ahcene; Çiçek, Gülseren; Mahmudov, Elimhan; El-Metwally, Hamdy A.; AL-kaff, M.; Mustafayev, Heybetkulu; Duru, Hülya; Biroud, KheireddineOn behalf of the Organizing Committee, we are very pleased to welcome you to the 3nd International Confer- ence of Mathematical Sciences (ICMS 2019) to be held between 4-8 September 2019 at Maltepe University in Istanbul. We hope that, ICMS 2019 will be one of the most beneficial scientific events, bringing together mathematicians from all over the world, and demonstrating the vital role that mathematics play in any field of science.Yayın Acute kidney injury in Turkey: epidemiological characteristics, etiology, clinical course and prognosis(BioMed Central Ltd, 2022) Gürsu, Meltem; Yeğenağa, Itır; Tuğlular, Serhan; Dursun, Belda; Bek, Sibel Gökçay; Bardak, Simge; Onan, Engin; Demir, Serap; Derici, Ülver; Doğukan, Ayhan; Sevinç, Mustafa; Koçyiğit, İsmail; Altun, Eda; Haras, Ali Burak; Altıparmak, Mehmet Rıza; Tombul, ZekiBackground: In this study, we aimed to evaluate the etiology, comorbidities and outcome of acute kidney injury (AKI) in our country, and if there is, to demonstrate any potential differences in different geographical parts of the country. Methods: This prospective observational study was carried on by Acute Kidney Injury Working Group of Turkish Society of Nephrology. Demographical and clinical data of AKI patients at the time of diagnosis, at the 1 st week and 1 st , 3 rd and 6 th months were evaluated to determine patient and renal survival, and factors associated with prognosis. Results: 776 patients were included (54.7% male, median age: 67 years). Prerenal causes were more frequent, namely dehydration, heart failure and sepsis. 58.9% of patients had at least one renal etiology, most frequently nephrotoxic agent exposure. Etiologic factors were mostly similar through the country. 33.6% of patients needed renal replacement therapy. At the 6 th month of diagnosis, 29.5% of patients had complete, 34.1% had partial recovery, end stage kidney disease ensued in 9.5% and 24.1% died. Death rate was higher in patients from Eastern Anatolian region, those in intensive care unit, patients with prerenal, renal and postrenal etiologies together, stage-3 AKI, sepsis, cirrhosis, heart failure, malignancy, need for renal replacement therapy and those without chronic kidney disease. Conclusion: Physicians dealing with AKI should be alert against dehydration, heart failure and sepsis, nephrotoxic agent exposure while taking care of these patients. Being aware of the characteristics of AKI patients and outcomes in their country would help to prevent AKI and treating better.Yayın Acute kidney injury in Turkey: epidemiological characteristics, etiology, clinical course, and prognosis(BMC Nephrology, 2022) Gürsu, Meltem; Yeğenağa, Itır; Tuğlular, Serhan; Dursun, Belda; Bek, Sibel Gökçay; Bardak, Simge; Onan, Engin; Demir, Serap; Derici, Ülver; Doğukan, Ayhan; Sevinç, Mustafa; Koçyiğit, İsmail; Altun, Eda; Haras, Ali Burak; Altıparmak, Mehmet Rıza; Tonbul, Halil ZekiBackground: This study aimed to evaluate the etiologies, comorbidities, and outcomes of acute kidney injury (AKI) in Turkey and determine any potential diferences among diferent geographical parts of the country. Methods: This prospective observational study was conducted by the Acute Kidney Injury Working Group of the Turkish Society of Nephrology. Demographical and clinical data of patients with AKI at the time of diagnosis and at the 1st week and 1st, 3rd, and 6th months of diagnosis were evaluated to determine patient and renal survival and factors associated with patient prognosis. Results: A total of 776 patients were included (54.7% male, median age: 67 years). Prerenal etiologies, including dehydration, heart failure, and sepsis, were more frequent than other etiologies. 58.9% of the patients had at least one renal etiology, with nephrotoxic agent exposure as the most common etiology. The etiologic factors were mostly similar throughout the country. 33.6% of the patients needed kidney replacement therapy. At the 6th month of diagnosis, 29.5% of the patients had complete recovery; 34.1% had partial recovery; 9.5% developed end-stage kidney disease; and 24.1% died. The mortality rate was higher in the patients from the Eastern Anatolian region; those admitted to the intensive care unit; those with prerenal, renal, and postrenal etiologies together, stage 3 AKI, sepsis, cirrhosis, heart failure, and malignancy; those who need kidney replacement therapy; and those without chronic kidney disease than in the other patients. Conclusion: Physicians managing patients with AKI should be alert against dehydration, heart failure, sepsis, and nephrotoxic agent exposure. Understanding the characteristics and outcomes of patients with AKI in their countries would help prevent AKI and improve treatment strategies.Yayın Crossed module aspects of monodromy groupoids for internal groupoids(Maltepe Üniversitesi, 2019) Mucuk, Osman; Demir, Serap; Şahan, TunçarThe notion of monodromy groupoid was introduced by J. Pradines in [3] to generalize the standard construction of a simply connected Lie group from a Lie algebra to a construction of a Lie groupoid from a Lie algebroid and has been developed by many others. The categorical equivalence between internal groupoids and crossed modules in groups with operations is known by [2] as a generalization of an equivalence of crossed modules within groups and group-groupoids [1]. In this work using the former equivalence and techniques of crossed modules we give a construction of the monodromy groupoid for topological internal groupoids within groups with operations including groups, rings, associative algebras, associative commutative algebras, Lie algebras, Leibniz algebras, alternative algebras and some others.Yayın Group-groupoids and crossed module aspects of monodromy groupoids(Maltepe Üniversitesi, 2019) Mucuk, Osman; Demir, Serap; Şahan, TuncarIn this extended abstract considering the topological version of categorical equivalence of crossed modules and group-groupoids we develop crossed module aspects of monodromy group-groupoids for topological group-groupoids and give some examples for monodromy groupoids.Yayın Internal categories in the category of semi abelian algebras(Maltepe Üniversitesi, 2021) Mucuk, Osman; Demir, SerapIn this extended abstract for given an algebraic theory T whose category of models is semi-abelian, we define the internal groupoid in the semi-abelian category of models, and give some results about these internal categories.
