BUSM Alumni Association Annual Report

Annual report of the activities of the Boston University School of Medicine Alumni Association

BUSM Alumni Association Annual Report

Annual Report of the activities of the Boston University School of Medicine Alumni Association

Implementasi Portal Layanan Bagi Orang Tua Mahasiswa Pada Perguruan Tinggi

Upaya untuk meningkatkan layanan kepada para stakeholder, kerap kali dilakukan oleh perguruan tinggi dengan harapan kualitas layanan dan image dari suatu perguruan tinggi dapat ditingkatkan. Stakeholder dari perguruan tinggi sendiri dapat dikelompokkan menjadi calon mahasiswa, mahasiswa, orang tua mahasiswa, dosen, industri, alumni, staff dan pimpinan perguruan tinggi. Dengan banyaknya jumlah stakeholder yang ada, penelitian kali ini lebih difokuskan kepada stakeholder orang tua mahasiswa. Penelitian dilakukan dengan cara membangun suatu portal layanan bagi orang tua mahasiswa yang dapat digunakan untuk mendapatkan informasi secara lengkap terkait dengan kegiatan akademik mahasiswa. Adapun hasil akhir dari penelitian ini adalah sebuah portal/website yang dapat digunakan oleh perguruan tinggi untuk memberikan layanan yang lebih baik kepada orang tua mahasiswa

BUSM Alumni Association Annual Report

Annual Report of the activities of the Boston University School of Medicine Alumni Association

BUSM Alumni Association Annual Report

Annual report of the activities of the Boston University School of Medicine Alumni Association

A Database Interface for Complex Objects

We describe a formal design for a logical query language using psi-terms as data structures to interact effectively and efficiently with a relational database. The structure of psi-terms provides an adequate representation for so-called complex objects. They generalize conventional terms used in logic programming: they are typed attributed structures, ordered thanks to a subtype ordering. Unification of psi-terms is an effective means for integrating multiple inheritance and partial information into a deduction process. We define a compact database representation for psi-terms, representing part of the subtyping relation in the database as well. We describe a retrieval algorithm based on an abstract interpretation of the psi-term unification process and prove its formal correctness. This algorithm is efficient in that it incrementally retrieves only additional facts that are actually needed by a query, and never retrieves the same fact twice

A systematic comparison of recurrent event models for application to composite endpoints

Background: Many clinical trials focus on the comparison of the treatment effect between two or more groups concerning a rarely occurring event. In this situation, showing a relevant effect with an acceptable power requires the observation of a large number of patients over a long period of time. For feasibility issues, it is therefore often considered to include several event types of interest, non-fatal or fatal, and to combine them within a composite endpoint. Commonly, a composite endpoint is analyzed with standard survival analysis techniques by assessing the time to the first occurring event. This approach neglects that an individual may experience more than one event which leads to a loss of information. As an alternative, composite endpoints could be analyzed by models for recurrent events. There exists a number of such models, e.g. regression models based on count data or Cox-based models such as the approaches of Andersen and Gill, Prentice, Williams and Peterson or, Wei, Lin and Weissfeld. Although some of the methods were already compared within the literature there exists no systematic investigation for the special requirements regarding composite endpoints. Methods: Within this work a simulation-based comparison of recurrent event models applied to composite endpoints is provided for different realistic clinical trial scenarios. Results: We demonstrate that the Andersen-Gill model and the Prentice- Williams-Petersen models show similar results under various data scenarios whereas the Wei-Lin-Weissfeld model delivers effect estimators which can considerably deviate under commonly met data scenarios. Conclusion: Based on the conducted simulation study, this paper helps to understand the pros and cons of the investigated methods in the context of composite endpoints and provides therefore recommendations for an adequate statistical analysis strategy and a meaningful interpretation of results

“La soglia degli affetti: considerazioni sull’attribuzione del nome e la costruzione sociale della persona”

This is an article (in Italian) about name attribution and the social construction of persons in Bahia (NE Brazil

Campus & alumni news

Boston University Medicine was published by the Boston University Medical Campus, and presented stories on events and topics of interest to members of the BU Medical Campus community. It followed the discontinued publication Centerscope as Boston University Medicine from 1991-2005, and was continued as Campus & Alumni News from 2006-2013 before returning to the title Boston University Medicine from 2014-present