Judul: Intervensi Air Minum Beroksigen Berpotensi Memperbaiki Status Lipida Penderita Gangguan Fungsi Paru
Abstrak: The world death rate due to smoking has reached more than 5.1 million people per year. World Health Organization (WHO) estimates that in 2020, the world population death rate due to smoking will reach 7.5 million people per year. The prevalence of lung disease including obstruction and restriction related to smoking habit is approximately 42%. This lung disease resulted in breathlessness and oxygenation degression. Provison of oxygenated water will provide extra oxygen shown by elevation of blood oxygen saturation (SaO2). Absorbed oxygen will be utilized in lipid metabolism. The objectives of this research were to evaluate the provision of oxygenated water to blood oxygen saturation and blood lipid profile in patients with lung disease. Provision of oxygenated water was conducted in two phases, short-term and long-term. Short-term test was conducted by measuring SaO2 after drinking oxygenated water on 0, 1, 5, and 10 minutes interval, meanwhile long-term test conducted for 21 days was observed by measuring the changes of blood lipid profile. Short-term test showed that there was tendency of SaO2 elevation after consuming oxygenated water. Concentration of 50 ppm oxygenated water was able to increase blood SaO2. Long-term test showed that the drinking of oxygenated water (100 ppm) for 21 days by 16 respondents : 13 lung disease respondents and 3 normal respondents did not give significant changes of blood lipid at 5% significance level, but there was tendency to repair blood lipid profile. Subjective response result showed that lung disease patients were feeling better after drinking 100 ppm oxygenated water everyday for 21 days.
Keyword: subjective response, blood lipid profile, SaO2, oxygenated water

Judul: Analisis Pengaruh Minuman Beroksigen terhadap Komponen Darah dan Kimia Klinik (Studi Kasus : Penderita Penyakit Paru Obstruktif Kronis di Klinik Katili Bogor)
Abstrak: Chronic Obstructive Pulmonary Disease (COPD) is the fourth largest cause of death in the world. COPD is characterized by constriction of airway, thus the flow of oxygen from the lungs is reduced. Lack of oxygen in the body can be fulfilled by consuming oxygenated water. In this study, 10 patients with COPD serve as respondents were given an oxygenated water with a concentration of 100 mg/L, two times a day, each 385 ml for 21 days. The influence of oxygenated water was observed through 13 variables of blood components and clinical chemistry. Hotelling's T2 test on the bootstrap resampling data indicates oxygenated water can increase Hemoglobin, Erythrocytes, Hematocrit and decrease Serum Glutamic Oxaloacetic Transaminase, Serum Glutamic Pyruvic Transaminase, Blood Sugar. It shows that oxygenated water is beneficial for patients with COPD and does not cause oxidative stress.
Keyword: oxygen, hotelling's T2 test, COPD, bootstrap resampling

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
Keyword: