De La Salle University

About: De La Salle University is a education organization based out in Manila, Philippines. It is known for research contribution in the topics: Population & Computer science. The organization has 2951 authors who have published 4374 publications receiving 49567 citations. The organization is also known as: Pamantasang De La Salle.

Regenerable Acidity of Graphene Oxide in Promoting Multicomponent Organic Synthesis.

Abstract: The Bronsted acidity of graphene oxide (GO) materials has shown promising activity in organic synthesis. However, roles and functionality of Lewis acid sites remain elusive. Herein, we reported a carbocatalytic approach utilizing both Bronsted and Lewis acid sites in GOs as heterogeneous promoters in a series of multicomponent synthesis of triazoloquinazolinone compounds. The GOs possessing the highest degree of oxidation, also having the highest amounts of Lewis acid sites, enable optimal yields (up to 95%) under mild and non-toxic reaction conditions (85 °C in EtOH). The results of FT-IR spectroscopy, temperature-programed decomposition mass spectrometry, and X-ray photoelectron spectroscopy identified that the apparent Lewis acidity via basal plane epoxide ring opening, on top of the saturated Bronsted acidic carboxylic groups, is responsible for the enhanced carbocatalytic activities involving Knoevenagel condensation pathway. Recycled GO can be effectively regenerated to reach 97% activity of fresh GO, supporting the recognition of GO as pseudocatalyst in organic synthesis.

Reference 2.0 in action: an evaluation of the digital reference services in selected Philippine academic libraries

Abstract: Purpose – The purpose of this paper is to present the current status of digital reference services (DRS) among selected academic libraries in the Philippines – the University Library of the University of the Philippines Diliman, the Rizal Library of the Ateneo de Manila University and the University Library of the De La Salle University Manila – by figuring out how information service is provided using instant messaging (IM) and social networking sites.Design/methodology/approach – A survey was conducted to examine the nature, practice and impact of DRS and to ascertain users' preferences and level of awareness of the availability of Ask‐a‐Librarian – an information service offered through IM, and the Facebook fan page of the university libraries under study.Findings – Interestingly, the findings reveal that the full potential of Reference 2.0 has not yet been maximized. When it comes to reference services in academic libraries, students and faculty members have chosen to go online: Ask‐a‐Librarian, web f...

THE REVITALIZED PHILIPPINE-U.S. SECURITY RELATIONS: A Ghost from the Cold War or an Alliance for the 21st Century?

Abstract: This article contends that the Philippine-U.S. post-9/11 security relationship is characterized by temporary and limited American troop deployment aimed at developing the Armed Forces of the Philippines9 counterterrorism capability and fostering interoperability between the Philippine and American armed forces. The article concludes that the post-9/11 alliance is significantly different from the two countries9 security relationship during the Cold War.