İstanbul Sağlık ve Teknoloji Üniversitesi Kurumsal Akademik Arşivi
DSpace@İSTÜN, Üniversite mensupları tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Üniversite kütüphanelerinde yeni yaklaşımlar: Yapay zekâ kütüphaneciliği
(Bakı Dövlət Universiteti, 2025) Cihan, Hacı Bayram; Öztürk, Aytuğ
The aim of this study is to examine the changes in the duties and respon sibilities of librarians with the use of artificial intelligence in university libraries and to evaluate the effects of these changes on the librarianship profession. In this context, how artificial intelligence has transformed the librarianship profession, the opportunities and challenges librarians will face in adapting to new technologies, and the skills they need to acquire in this process will be examined. The study covers librarians working in university libraries and artificial intelligence technologies applied in libraries. The design of the research was created using the descriptive analysis method. The effects of artificial intelligence applications in libraries were detailed through the literature review method, academic articles, notifications, books, and websites. The data were examined using thematic analysis method and main themes and sub-themes were determined. The research findings show that generative artificial intelligence applications provide significant changes in data management, user services, and information access processes in libraries. These changes expand the duties of librarians and require them to acquire new skills. In particular, data analytics, machine learning, and digital archive management are among the basic skills of new-generation librarians. As a result, generative artificial intelligence technologies are creating new formations in the librarianship profession. It has been determined that librarians need to constantly renew themselves and adapt to technologies such as artificial intelligence to keep up with rapidly developing technologies. In this process, it has become a critical necessity for librarians to build their continuous learning and adaptation skills.
Flaxseed-based green electrolyte enabling high electrochemical stability for advanced zinc ion batteries
(Wiley, 2026) Arıkan, Yiğit Berke; Kömürcüoğlu, Gökçe; Adhami, Sadaf; Yaman Uzunoğlu, Gülşah; Yüksel, Recep
This study presents a green and sustainable electrolyte derived from flaxseeds (FS) aimed at enhancing the electrochemical stability of zinc-ion batteries (ZIBs), thereby reducing the occurrence of free water molecules and alleviating the hydrogen evolution reaction (HER) that contributes to the development of zinc (Zn) dendrites. The abundant hydroxyl groups present in polysaccharides and phenolic compounds within the flaxseeds coordinate with Zn2+, modifying the solvation sheath and reducing HER activity. Zn//Zn symmetric cells utilizing the FS-based electrolyte exhibited remarkably stable cycling for 3000 h at a current density of 1.0 mA cm−2 (1.0 mAh cm−2) and 2500 h at 2.0 mA cm−2 (2.0 mAh cm−2). Zn//V2O5 full cells delivered a discharge capacity of 233.8 mAh g−1 at 0.2 A g−1 and excellent rate capability across a wide current density range of 0.2–10 A g−1 . The ex situ SEM and XRD results confirmed uniform Zn deposition along the (002) plane without dendrite formation. This work demonstrates a biomass-derived, low-cost electrolyte formulation strategy that effectively stabilizes Zn interfaces, providing a green and efficient pathway for next-generation zinc-ion batteries.
Child mortality in Türkiye
(Zenodo, 2026) Eskiocak, Muzaffer
Tüm halk sağlığı çalışanları kendilerine şu soruyu sormalıdır: Ben bu işi neden yapıyorum? Halk Sağlığının amacı sağlıklılığı korumak ve geliştirmek, sağlığa kavuşturmak, ızdırabı ve endişeyi dindirmektir. Biz başarılı olduğumuz yargısına sıklıkla bebek ölüm hızındaki azalma ve beklenen yaşam süresindeki uzama ile varırız! Ülkemizde bebek ölüm hızı bin canlı doğumda 60,82’den 9,09’a düşürülmüştür. Son yıllarda adeta plato çizmektedir. Bildirilen en düşük değer, 2022’deki binde 8,01’dir. En düşük haliyle bile 1990’da Fransa, Birleşik Krallık, Japonya ve Almanya’dan, 2000’nde bu ülkelere ek olarak Yunanistan’dan daha yüksektir. 2023’te ise bu ülkelerin 1,82 – 5,14 katı arasında fazladır. Bir başka ifade ile ülkemizde başarılan önleme düzeylerine göre binde 4,09 – 7,32 arasında fazladan bebek ölümü olmaktadır. Bebek ölümlerinin bir bölümü önlenememektedir. Ne var ki, önlenebilirlik düzeyini, kimi erişilebilen düzeylerine göre değerlendirmek ve sağlık sistemiyle sınırlı olmayan ödevler yüklenmek zamanıdır. Çocuklara 1990’larda verilen yaşatma sözünü hatırlama ve tutma zamanıdır.
Sahin transvaginal extracorporeal myomectomy as a novel minimally‑invasive technique for the management of uterine myomas: A retrospective cohort analysis
(Medycyna Praktyczna, 2025) Şahin, Turan; Şahin, Eda A.; Şahin, Hanifi
Introduction: Vaginal myomectomy (VM) is a minimally-invasive surgery to remove uterine fibroids; however, limited exposure, difficulties in suturing, and challenges in achieving hemostasis restrict its wider adoption. To address these limitations, the Sahin transvaginal extracorporeal (STVEC) technique was developed, allowing for complete uterine exteriorization for extracorporeal reconstruction. Aim: We aimed to evaluate the safety, feasibility, and perioperative outcomes of the STVEC technique in women undergoing surgery for symptomatic uterine myomas. Materials and methods: This retrospective cohort included 200 consecutive patients who underwent VM using the STVEC technique between February 2021 and October 2024. Demographic characteristics, myoma features according to the International Federation of Gynecology and Obstetrics (FIGO) classification, operative variables, postoperative outcomes, and complications were analyzed. The complications were graded using the Clavien–Dindo system. Conversion to laparotomy was performed when safe continuation of the STVEC approach was not feasible. Results: Mean (SD) age of the study cohort was 39.1 (6.5) years and mean (SD) body mass index was 27.5 (5.8) kg/m². Mean (SD) myoma count was 1.8 (1.4; range: 1–5) and mean (SD) diameter was 6.7 (2.4; range, 5–10) cm. Intramural myomas (FIGO type 2–5) were the most common (55%). Conversion to laparotomy occurred in 8 patients (4%) due to adenomyotic uteri, adhesions, prior vaginal surgery, or altered cervical anatomy. Median (interquartile range [IQR]) hemoglobin decrease was 1.7 g/dl, median (IQR) estimated blood loss was 180 ml, and mean (SD) operative time was 71.9 (19.5) minutes. Blood transfusion was required in 18 patients (9%). Early complications occurred in 7 participants (3.5%), and all were minor. Conclusions: The STVEC technique appears safe and feasible, offering good bleeding control, low complication rates, and rapid recovery. Further multicenter studies are needed to confirm our findings.
Radiographic medial posterior tibial slope ≥16° predicts multiple revisions after anterior cruciate ligament reconstruction
(Wiley, 2026) Kayaalp, Mahmut Enes; Inoue, Jumpei; Konstantinou, Efstathios; Kahraman, Hamit Çağlayan; Erden, Tunay; Musahl, Volker
Purpose: An increased posterior tibial slope (PTS) has been implicated as a risk factor for anterior cruciate ligament (ACL) graft failure. This matched case–control study aimed to compare radiographic and magnetic reso nance imaging (MRI)‐based PTS measurements between patients under going multiple revision anterior cruciate ligament reconstruction (ACLR) and those with successful primary ACLR and to identify thresholds predictive of high revision risk. Methods: In this matched case–control study, 156 patients were analysed: 78 patients undergoing multiple revision ACLR and 78 patients with suc cessful primary ACLR. Medial PTS was measured on radiographs, while medial, lateral and PTS difference (PTS asymmetry) were measured on MRI. Group differences were assessed using independent t tests and χ2 tests. Receiver operating characteristic (ROC) analysis identified optimal thresholds, and logistic regression quantified odds ratios (ORs) for multiple revisions per 1° increase in radiographic medial PTS, adjusting for body mass index (BMI), sex, side, height and weight. Results: Radiographic medial PTS was significantly higher in the multiple‐ revision group (12.5 ± 3.5° vs. 11.2 ± 3.0°, p = 0.016). ROC analysis identi fied an optimal medial PTS cutoff of 13° (area under the curve = 0.58, sensitivity = 0.49, specificity = 0.65), but only a PTS ≥ 16° was significantly associated with increased multiple revision risk (OR = 3.10, 95% confidence interval [CI]: 1.14–8.40; p = 0.037; specificity = 0.91; positive predictive value [PPV] = 0.70). MRI‐based medial and lateral PTSs, as well as PTS asymmetry, did not differ significantly between groups. Univariate logistic regression demonstrated a 10% increase in odds per 1° increase in radio graphic PTS (OR = 1.10, 95% CI: 1.00–1.22, p = 0.049), remaining signifi cant after adjustment for BMI, sex, side, height and weight (adjusted OR = 1.11, 95% CI: 1.01–1.23, p = 0.034). Radiographic medial PTS cor related moderately with MRI‐based medial PTS (r = 0.49, p < 0.001), but not with lateral PTS (p: n.s.). Conclusion: Radiographic medial PTS showed the strongest differentiation between successful primary ACLR and multiple‐revision ACLR. A PTS ≥ 16° identifies patients at significantly higher risk of multiple revisions, whereas MRI‐based medial PTS, lateral PTS and PTS asymmetry provide no addi tional discriminatory value. Radiographic medial PTS appears practical for preoperative risk stratification, whereas MRI‐based measures do not show similar utility. Level of Evidence: Level III.
