Papers by de Guzman, John dave R.
Placenta
The vitelline circulation normally regresses by about 10 weeks gestation. Vitelline vessel remnan... more The vitelline circulation normally regresses by about 10 weeks gestation. Vitelline vessel remnants (VVRs) are found in approximately 4-11% of umbilical cords. While these remnants retain an active fetal circulation, this has never been studied. Using an operating microscope, VVRs were catheterized, injected with ink, and then examined grossly and histologically. Over 90% of VVRs are paired thin-walled vessels with afferent and efferent circulation completed within the cord via capillary plexuses and bridging vessels; <10% are single thin-walled arterial vessels running the length of the cord to the placental disc, with their venous return circulation via allantoic umbilical vessels.
Biology, 2021
The surgical techniques available to clinicians to treat peri-implant diseases can be divided int... more The surgical techniques available to clinicians to treat peri-implant diseases can be divided into resective and regenerative. Peri-implant diseases are inflammatory conditions affecting the soft and hard tissues around dental implants. Despite the large number of investigations aimed at identifying the best approach to treat these conditions, there is still no universally recognized protocol to solve these complications successfully and predictably. This review will focus on the regenerative treatment of peri-implant osseous defects in order to provide some evidence that can aid clinicians in the approach to peri-implant disease treatment.
Journal of Traditional Building, Architecture and Urbanism, 2020
The San Agustin Convent, located in Intramuros, the historic core of Manila, hosts a rich collect... more The San Agustin Convent, located in Intramuros, the historic core of Manila, hosts a rich collection of 19 altarpieces (retablos). These retablos are an important heritage which was recorded in full detail for its better future conservation and knowledge. This article presents the outcome of this process and it is ultimately aimed at promoting and giving greater visibility to this art, which is still alive today in the Philippines and where it has evolved to produce its own local tradition, while remaining linked to its early Spanish precedents.
International Journal of Machine Learning and Computing, 2020
The authors implemented a fuzzy logic technique to develop a mobile based decision support tool c... more The authors implemented a fuzzy logic technique to develop a mobile based decision support tool called Generalized STEM-College Aptitude Test (GSTEM-CAT). It is an application that can recommend to the college applicant what appropriate university program can be enrolled based on ones' personality type and knowledge strength. Moreover, the students may enjoy GSTEM-CAT application because they see graphical objects associated to personality type test. The developed tool was evaluated by the respondents and based on the evaluation results, the software satisfied its implied functions and is functional, usable and reliable. Hence, it can be already used by the students and school administrators to assess and recommend set of college program that the student may take up, therefore providing opportunities for successful program completion.
IMF Working Papers, 2010
We document external investment positions among European Union countries at the start of the fina... more We document external investment positions among European Union countries at the start of the financial crisis through the creation of a new database comprising bilateral external financial asset and liabilities, excluding reserve assets and derivatives. While there are some gaps in the data, the overall coverage of reported bilateral net international investment positions (IIPs) appears satisfactory. The dataset provides a richer picture of financial linkages, enabling us to map the financing of Euro area imbalances. Creditor and debtor positions vis-à-vis the rest of the EU have tended to increase between 2000 and 2008, with capital flowing largely from wealthier to catching-up economies. This has in particular resulted in an increased interdependency among Euro Area economies.
Journal of Applied Sciences, 2009
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Papers by de Guzman, John dave R.