Publications by authors named "Lydia Perez"
Article Synopsis
- The study investigates the performance of microfiltration (MF) and ultrafiltration (UF) ceramic membranes in filtering seawater around mussel rafts to prevent toxic episodes caused by harmful algal blooms.
- The modified fouling index (MFI-UF) is used to assess fouling rates, revealing that UF membranes provide better filtration quality by reducing turbidity, alkalinity, chemical oxygen demand (COD), and chlorophyll levels compared to MF membranes.
- The rejection rates of lead and okadaic acid vary with pH and pressure, showing that most okadaic acid rejection results from cake formation on membranes, while heavy ions are rejected based on membrane charge until certain saturation points are reached.
This article is a report of the process and results of a feasibility pilot study to improve the quality of maternity care in a sample of 31 women and their newborns delivering in a public, tertiary hospital in the Dominican Republic. The pilot study was the first "action step" taken as a result of a formative, community-based participatory research (CBPR) study conducted between 2008 and 2010 by an interdisciplinary, international partnership of U.S.
View Article and Find Full Text PDFBackground: Preoperative chemoradiotherapy (CRT) is the cornerstone of treatment for locally advanced rectal cancer (LARC). Although high local control is achieved, overall rates of distant control remain suboptimal. Colorectal carcinogenesis is associated with critical alterations of the Wnt/β-catenin pathway involved in proliferation and survival.
View Article and Find Full Text PDFPosttraumatic stress disorder (PTSD) and depressive symptoms have been theorized to mediate the relationship between trauma exposure and physical health symptoms. Although empirical evidence supports this premise, studies conducted to date have employed statistical mediation analyses that are now broadly criticized. Furthermore, the mediating roles of both PTSD and depressive symptoms have seldom been examined concurrently, and it remains unclear which PTSD symptom clusters uniquely mediate this relationship.
View Article and Find Full Text PDFObjective: to understand both men's and women's beliefs and attitudes regarding public maternity and newborn services, care and quality.
Design: qualitative, cross-sectional, retrospective study with an observation arm, using community-based participatory research as both the mechanism of enquiry and catalyst for change.
Setting: four urban neighbourhoods in the Dominican Republic, selected in collaboration with the Provincial Medical Public Health Director and the partnering local public hospital.