Yazar "Demir, Mehmet" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    EFFECTS OF HOT-COLD OIL TREATMENT ON BIOLOGICAL RESISTANCE AND PHYSICAL PROPERTIES OF BRUTIA PINE SAPWOOD
    (Univ Bio-Bio, 2021) Var, Ahmet Ali; Yalcin, Mesut; Yalcin, Omer Umit; Demir, Mehmet
    This study investigated the physical properties of hot-cold oil-treated Brutia pine sapwood (Pinus brutia) and its biological resistance against wood-decay fungi. Weight percent gain, density, water absorption, and volumetric shrinking were chosen as the physical properties of the wood. White rot (Trametes versicolor) and brown rot (Neolentinus lepideus) were selected as the wood-decay fungi. Two different temperatures and two different time intervals were determined for the hot-cold oil treatment. Castor oil (Ricinus communis), flaxseed oil (Oleum linii), and a mixture of the two were used as the treatment oils (the medium of the hot-cold treatment). The results showed that the physical properties of the hot-cold oil-treated samples improved significantly compared to those of the control samples. In addition, after exposure to the decay fungi, the mass loss of the hot-cold flaxseed oil-treated samples decreased significantly more than in either the untreated samples or those treated with the other oils. There was a significant increase in the water repellent effectiveness and dimensional stability of the Brutia pine sapwood with all hot-cold oil treatments, but the hot-cold castor oil treatment appeared to have had no effect on decay resistance. A hot-cold oil treatment using flaxseed oil or a mixture including it could be a suitable method for improvement of the water repellent effectiveness, dimensional stability, and decay resistance of Brutia pine sapwood, as they both reduced the water uptake and the mass loss against the wood-decay fungi compared to the results of the control samples.
  • Küçük Resim
    Öğe
    Local Anesthetic Systemic Toxicity Knowledge of Emergency Medicine Residents: A Cross-Sectional Study
    (Duzce Univ, 2020) Ilhan, Bugra; Demir, Mehmet
    Objective: Local anesthetics (LAs) are starting to be used after the discovery of cocaine, which is used in medical practice. Now LAs are used many procedures in many clinics, especially in emergency departments (EDs). The extensive use of LAs was brought side effects and toxicity. Local anesthetic systemic toxicity (LAST) have been reported from simple allergic conditions to cardiovascular and neurological complications that can be fatal. The study aims to evaluate the level of knowledge and awareness of LAST among emergency medicine residents (EMRs). Methods: This was a questionnaire-based cross-sectional study. The questionnaires were sent to EMRs via e-mail, and responses were collected. The participants who gave informed consent included in the study, and who didn't use LAs in their daily practice were excluded. All of the participants responded all of the questions and responses were analyzed. Results: 92 EMRs were included in the study. The median age of the participants was 29 (24-50) years, and 48.9% were women. In the research, no one could recognize all LAST symptoms, ranging from mild to severe. Only 16.3% of the participants answered all treatment options of the LAST correctly, and 27.2% knew the intravenous lipid emulsion dosage accurately. Conclusions: The level of knowledge and awareness of the EMRs on LAST were insufficient. EMRs training rates on LAs and LAST were found to be low. In addition, it was stated that the patient's informed consent was not appropriately obtained from the vast majority of patients undergoing LA procedure. As the first study on LAST among EMRs, we believe that necessary arrangements should be made regarding the detected deficiencies.