OBJECTIVE To determine the association between use of school-based health centers (SBHCs) and school dropout. DESIGN Quasi-experimental longitudinal analysis of a retrospective student cohort, with SBHC use as the independent variable. We statistically controlled for dropout risk and used propensity score regression adjustment to control for several factors associated with SBHC use. SETTING...

Ich verfolge in meinem Beitrag zwei Gedankenlinien zur Verbesserung der Lehre. Zum einen stelle ich das Problem der Heterogenität (Programmieranfänger und Studierende mit Vorerfahrung) dar, analysiere die speziellen Schwierigkeiten der Programmieranfänger und zeige Wege auf, mit dieser Situation produktiv umzugehen. Zum anderen stelle ich die Möglichkeit vor, mit Hilfe einer Projektphase im ers...

Main Courses lect. prac. lab. cr. prerequisite Semester 1 (spring) Applications of optimization [1] 2 1 4 Formal methods [2]

In the spring of 2004, a semester-long course for undergraduates was organized as part of CMU’s student-taught StuCo (student college) curriculum. The course covered material ranging from a historical background on Inferno’s development, the Limbo programming language and related systems such as Communicating Sequential Processes (CSP), to the implementations of the Inferno emulator and native ...

We shall denote the partial order (precedence relation) by , where i j means job i must be completed before job j starts. We assume the precedence relation is speciied in the form of a directed acyclic graph G = (V; E) (V is the set of nodes), in which there is a path from i to j ii i j. Goal: Find a non-preemptive schedule on a single machine which minimizes j w j C j. Our problem is NP-hard i...

Exercise 2 Suppose a certain drug test is 99% accurate, that is, the test will correctly identify a drug user as testing positive 99% of the time, and will correctly identify a non-user as testing negative 99% of the time. Let’s assume a corporation decides to test its employees for opium use, and 0.5% of the employees use the drug. We want to know the probability that, given a positive drug te...

Independent directors are normally elected to monitor management behaviour and protect the interests of minority shareholders, which maintains the effectiveness of internal governance. Based on the special context in China, where succeeding independent directors are often recommended by their predecessors, we examine the causes of this recommendation and the influence of these successors on cor...