52 research outputs found

    Rational Points on Elliptic Curves y^2=x^3+a^3 in f_{p} where p{\equiv}1(mod6) is Prime

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    In this work, we consider the rational points on elliptic curves over finite fields F_{p}. We give results concerning the number of points on the elliptic curve y^2{\equiv}x^3+a^3(mod p)where p is a prime congruent to 1 modulo 6. Also some results are given on the sum of abscissae of these points. We give the number of solutions to y^2{\equiv}x^3+a^3(modp), also given in ([1], p.174), this time by means of the quadratic residue character, in a different way, by using the cubic residue character. Using the Weil conjecture, one can generalize the results concerning the number of points in F_{p} to F_{p^{r}}.Comment: 9 pages; Keywords: Elliptic curves over finite fields, rational point

    Case Report of Bullous Pemphigoid following Fundus Fluorescein Angiography

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    Purpose: To report a first case of bullous pemphigoid (BP) following intravenous fluorescein for fundus angiography. Clinical Features: A 70-year-old male patient was admitted to the intensive care unit with BP and sepsis. He reported a history of fundus fluorescein angiography with a pre-diagnosis of senile macular degeneration 2 months prior to presentation. At that time, fluorescein extravasated at the antecubital region. Following the procedure, pruritus and erythema began at the wrists bilaterally, and quickly spread to the entire body. The patient also reported a history of allergy to human albumin solution (Plamasteril®; Abbott) 15 years before, during bypass surgery. On dermatologic examination, erythematous patches were present on the scalp, chest and anogenital region. Vesicles and bullous lesions were present on upper and lower extremities. On day 2 of hospitalization, tense bullae appeared on the upper and lower extremities. The patient was treated with oral methylprednisolone 48 mg (Prednol®; Mustafa Nevzat), topical clobetasol dipropionate 0.05% cream (Dermovate®; Glaxo SmithKline), and topical 4% urea lotion (Excipial Lipo®; Orva) for presumptive bullous pemphigoid. Skin punch biopsy provided tissue for histopathology, direct immunofluorescence examination, and salt extraction, which were all consistent with BP. After 1 month, the patient was transferred to the intensive care unit with sepsis secondary to urinary tract infection; he died 2 weeks later from sepsis and cardiac failure. Conclusions: To our knowledge, this is the first reported case of BP following fundus fluorescein angiography in a patient with known human albumin solution allergy. Consideration should be made to avoid fluorescein angiography, change administration route, or premedicate with antihistamines in patients with known human albumin solution allergy. The association between fundus fluorescein angiography and BP should be further investigated

    Association between health literacy and medication adherence in the elderly population with chronic disease

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    Background: Medication adherence is a key factor in the therapy of chronic diseases in older people. It is important to investigate the effect of health literacy on medication adherence in this patient population. Health literacy can be summarized as an individual’s ability to understand and interpret the provided medical information and to behave appropriately based on this information. Aim: The purpose of this study was to investigate the association between health literacy and medication adherence in older people with chronic disease. Methods: A total of 175 patients admitted to the family health center clinic in Bursa, Turkey, who were older than 65 years old, were enrolled in this cross-sectional study using the convenience sampling method. A priori power analysis was conducted to determine the required sample size to reach 90% power. The Turkish version of the 8-item Morisky Medication Adherence Scale (MMAS-8) was used to assess medication adherence. The European Health Literacy Survey Questionnaire (HLS-EU-Q47) was used to evaluate health literacy. Disability associated with dyspnea was assessed using the Medical Research Council (MRC) dyspnea scale. Results: The data showed that, according to dyspnea status and diagnosis, medication adherence varied. In this sample, medication adherence in elderly patients was not associated with health literacy. Instead, medication adherence was associated with the patient’s disability and the course of the disease. Discussion and conclusions: Improving health literacy may enhance the medication adherence of older people with chronic disease. The development, practice and evaluation of health literacy interventions for older people with chronic conditions are important to increase medication adherence and potentially improve patient outcomes. [Ethiop. J. Health Dev. 2020; 34(2):90-96] Key words: Health literacy, medication adherence, older patients, chronic disease, dyspne

    A simplified acute kidney injury predictor following transcatheter aortic valve implantation: ACEF score

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    Background: Transcatheter aortic valve implantation (TAVI) is an effective, less invasive treatment alternative for symptomatic severe aortic stenosis (AS). Acute kidney injury (AKI) following TAVI is a common complication and is associated with worse outcomes. The age, creatinine, ejection fraction (ACEF) score is a simple scoring method, including only three parameters: age, creatinine, and ejection fraction (EF). The score was well established in predicting AKI after coronary interventions.Aims: We aimed to evaluate whether this simple scoring method, ACEF, may predict a development of AKI in patients who underwent TAVI.Methods: A total of 173 consecutive patients with symptomatic severe AS who underwent TAVI were included retrospectively. The primary endpoint of the study was the development of AKI. Study population was divided into two groups according to the presence of AKI. The ACEF score was calculated with the formula: age/EF + 1 (if baseline creatinine >2 mg/dl).Results: Twenty-nine patients developed AKI. The median (interquartile range) ACEF score was 1.36 (1.20–1.58). The ACEF score was found to be an independent predictor of AKI (P <0.001). The ACEF score ≥1.36 predicted AKI development with a sensitivity of 96.6% and specificity of 58.8%. Moreover, hypertension, hemoglobin levels, contrast volume, and aortic valve area (AVA) were found to be independent predictors of AKI.Conclusions: Our study revealed that the ACEF score was an independent predictor of AKI. A simple and objective score might be very useful in predicting AKI development in patients undergoing TAVI

    Collection of magnesium in an Mg-Pb alloy cathode placed at the bottom of the cell in MgCl2 electrolysis

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    The electrolytic cell features a top inserted graphite anode and a cathode, Mg-Pb alloy, placed at the bottom of the cell to reduce recombination of magnesium and chlorine in the inter-electrode region. The process involved the electrolysis Of M902 to form an Mg-Pb alloy that is heavier than the electrolyte and a subsequent refining of the alloy to obtain electrolytic grade magnesium. To achieve metallic magnesium production rate with the present cell, that is comparable with the conventional methods, higher current densities have to be used with the present system. The effects of current density on the cell performance have been determined in the present study
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