This study aims to create and develop android-based learning media in the Broad-Based Network Technology subject at SMK N 1 Tilatang Kamang. uses Research Development (R&D) method. The research is subject. validators this were two lecturers from Padang State University as Media Experts teachers majoring Computer Engineering While object of class XI TKJ students using results validation test...

PURPOSE To investigate tear film optical quality dynamics by analyzing the postblink temporal changes of objective scatter index (OSI). METHODS A total of 109 myopic subjects without symptoms of dry eye and 32 myopic subjects diagnosed with dry eye disease were recruited in this cross-sectional study. The right eye for each subject was analyzed. Serial measurements of OSI were performed for 2...

We introduce a new notion of covering projection E → X of a topological spaceX which reduces to the usual notion ifX is locally connected. We use locally constant presheaves and covering reduced sieves to find a pro-groupoid π crs(X) and an induced category pro(π crs(X), Sets) such that for any topological space X the category of covering projections and transformations of X is equivalent to th...

human’s life becomes meaningful and valuable when the purpose of his creation becomes true. the investigation of nature’s role in the case of special human’s creation is related to the meaningfulness of human’s life. in this study, first we will explain first nature and second nature with descriptive-analysis method and from mullah sadra’s point of view and then, we explain his view about natur...

Consider the abelian category Ck of commutative group schemes of finite type over a field k. By results of Serre and Oort, Ck has homological dimension 1 (resp. 2) if k is algebraically closed of characteristic 0 (resp. positive). In this article, we explore the abelian category of commutative algebraic groups up to isogeny, defined as the quotient of Ck by the full subcategory Fk of finite k-g...

We develop a model of household demand for frequently purchased consumer goods that are branded, storable and subject to stochastic price fluctuations. Our framework accounts for how inventories and expectations of future prices affect current period purchase decisions. We estimate our model using scanner data for the ketchup category. Our results indicate that price expectations and the nature...