Yazar "Celik, Yusuf" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    Assessment of sexual dysfunction, the quality of life and difficulties in broaching sexual issues in patients with chronic low back pain by using cluster analysis
    (Mre Press, 2024) Cokar, Dilek; Celik, Yusuf; Ayla, Ozge Ozdemir; Kavadar, Gulis; Murat, Sadiye; Ozgonenel, Levent
    The aim of this study is to investigate the physical and psychosocial problems and the clinical and sociodemographic factors affecting sexual life in patients with nonspecific chronic low back pain (CLBP), thus drawing attention to sexual disability and patients' concerns in the conservative management of the disease. A total of 140 patients were included in the study. The assessment of disease characteristics, information about sexual life and related factors were evaluated by a self-constructed questionnaire. Physical Activity Questionnaire (IPAQ), Tampa Scale of Kinesiophobia (TSK) and Beck Depression Inventory (BDI) were used to assess functional disability, pain-related anxiety, physical activity level, fear of movement and depression severity, respectively. Hierarchical cluster analysis was used to discover relationships among variables. Based on the dendrogram, the intensity of CLBP, the impact of CLBP on sexual life, decrease in libido, sexual satisfaction, frequency of intercourse, painful sexual behavior and questionnaire results (BDI, TSK, ODI, PCS) were in the same cluster. Consistent with this, positive correlations were found between BDI and PCS (p < 0.001, r = 0.481), BDI and TSK (p < 0.001, r = 0.319), and BDI and ODI (p < 0.001, r = 0.408). The other main clusters included demographic and clinical characteristics, ODI and IPAQ scores. The sexual lives of patients with CLBP are affected physically and psychosocially. In clinical practice, it is important to counsel sexual disability patients because of their concerns and hesitations.
  • Küçük Resim Yok
    Öğe
    Evaluation of pre- and post-transplant electroencephalographic examination in hematopoietic stem cell transplant patients
    (Literatura Medica, 2023) Yavlal, Figen; Dogan Gungen, Belma; Guzey Aras, Yesim; Celik, Yusuf
    Background and purpose - Haematopoietic stem cell transplantation (HSCT) is one of the most effective treatment methods for many malignant and non-malignant diseases. In this study, we aimed to detect electroencephalographic (EEG) anomalies at an early stage in patients who underwent allogeneic and autologous HSCT and required the management of potentially lifethreatening non-convulsive seizures. Methods - The study was conducted with 53 patients. The age, gender, HSCT type (allogeneic or autologous), and treatment regimens applied before and after HSCT were recorded. All patients underwent EEG monitoring twice, once on the first day of hospitalization and again one week after conditioning regimens began and HSCT was performed. Results - When the pre-transplant EEG findings were examined, 34 (64.2%) patients had normal EEGs and 19 (35.8%) had abnormal EEGs. After transplantation, 27 (50.9%) had normal EEG findings, 16 (30.2%) had a basic activity disorder, 6 (11.3%) had a focal anomaly, and 4 (7.5%) had a generalised anomaly. In the allogeneic group, the anomaly rate in post-transplant EEGs was significantly higher than that in the autologous group (p<0.05). Conclusion - It is important to consider the likelihood of epileptic seizures in the clinical follow-up of HSCT patients. EEG monitoring is crucial for the early diagnosis and treatment of such non-convulsive clinical manifestations.
  • Küçük Resim
    Öğe
    Katma Değer Vergisinde ihraç kayıtlı satışlar ve iade yöntemi
    (İstinye Üniversitesi / Sosyal Bilimler Enstitüsü, 2021) Celik, Yusuf; Karagozlu, Imran Emre
    Ülke ekonomisinin gelişmesinde ihracat önemli bir yer tutmaktadır. Mükellefler ihracat yaparak ülkeye döviz getirmekte ve dolayısıyla ekonominin canlanmasını sağlamaktadır. Bu nedenle ülkeler ihracatı teşvik edici politikalar üretmektedir. Türkiye’de ihracat 1985 yılında yürürlüğe giren Katma Değer Vergisinden istisna tutularak mükelleflerin ihracata teşvik edilmesi amaçlanmıştır. Tezimizin konusu; 3065 Sayılı Katma Değer Vergisi Kanununun 11/1-c maddesi kapsamında İhraç Kayıtlı Satışlar ve İade Yöntemidir. KDV bir ülke için en önemli bir gelir kaynaklarından birisidir. Ancak bu vergideki amaç nihai tüketiciden vergi tahsil edebilmektir. İhracat yapan bir firma KDV’yi tahsil edemediği için, ihracatçı firmalar için KDV istisnaları mevcuttur. Bu istisna ve iade sisteminin düzgün ve hızlı çalışması ülkemiz ihracatçısını teşvik edecek ve rekabet gücünü artıracaktır.