This study is concerned with the developing criteria for learning the semantics of UML models in an intelligent tutorial system. This is achieved by going through literature and studying the current approaches for checking the semantics of UML diagrams. This paper concerns with the ability of learning the semantics of UML models using formal methods, For this reason this research enhance an exi...

introduction: serum c-reactive protein (crp) is believed to be increased in metastatic urothelial cancer of the bladder. however, the changes depend on the stage and grade of the upper tract urothelial carcinoma (utuc). this study aimed to compare low-range and high-range serum crp and haptoglobin in new cases of utuc. materials and methods: blood was collected from newly diagnosed patients wit...

The struggle of students to solve algebraic equations has been identified as a major challenge in mathematics education. This study investigated the effectiveness Hands-On Equations? early algebra balance model improving equation-solving skills upper elementary and middle school students. Fourth-grade (n = 123) eighth-grade 105) from United States participated this study. A pretest-to-posttest ...

The significance of Infielder and Piaget's (1958) construct of"formal operations" depends in pert on establishing the extent to which formal operations have real-wodd relevance beyond the narrow domain of assessment situations in which Infielder and Piaget studied them. The present research investigates this question by examining the effect of exhibiting a concrete versus formal operational lev...

Bus protocols are hard to specify correctly, and yet it is often critical and highly beneficial that their specifications are correct, complete, and unambiguous. The informal specifications currently in use are not adequate because they are difficult to read and write, and cannot be functionally verfied by automated tools. Formal specifications, promise to eliminate these problems, but in pract...

Bus protocols are hard to specify correctly, and yet it is often critical and highly beneecial that their speciications are correct, complete , and unambiguous. The informal speciications currently in use are not adequate because they are diicult to read and write, and cannot be functionally verred by automated tools. Formal speciications, promise to eliminate these problems, but in practice, t...

A characterization of algebraic cones in terms of actions of the onedimensional multiplicative algebraic monoid Mm and the algebraic group Gm are given. This note answers a question of K. Adjamagbo asked in [A]. Below all algebraic varieties are taken over an algebraically closed field k. An irreducible algebraic variety X is called a cone if X is affine and its coordinate algebra k[X ] admits ...

A major challenge in crowdsourcing evaluation tasks like labeling objects, grading assignments in online courses, etc., is that of eliciting truthful responses from agents in the absence of verifiability. In this paper, we propose new reward mechanisms for such settings that, unlike many previously studied mechanisms, impose minimal assumptions on the structure and knowledge of the underlying g...

We study the Cox realization of an affine variety, i.e., a canonical representation of a normal affine variety with finitely generated divisor class group as a quotient of a factorially graded affine variety by an action of the Neron-Severi quasitorus. The realization is described explicitly for the quotient space of a linear action of a finite group. A universal property of this realization is...

Children around the world largely rely on formal education system to teach them foundational mathematics and reading skills. The inability of an do so may indicate it has structural constraints. In this paper, we use three rounds a nationally representative government-run household survey examine trends in mastery skills among grades 4–10 students between 2003 2019 Philippines. We find that not...