Publications by authors named "J Pizzuto"
Understanding the relationship between a dam's size and its ecological effects is important for prioritization of river restoration efforts based on dam removal. Although much is known about the effects of large storage dams, this information may not be applicable to small dams, which represent the vast majority of dams being considered for removal. To better understand how dam effects vary with size, we conducted a multidisciplinary study of the downstream effect of dams on a range of ecological characteristics including geomorphology, water chemistry, periphyton, riparian vegetation, benthic macroinvertebrates, and fish.
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- The study evaluated changes in contamination rates of organ-cultured corneas over 14 years, focusing on the types of microorganisms involved.
- Out of 17,979 donor corneas, 1,240 were found to be contaminated, with an average annual contamination rate of 6.8%, primarily caused by bacteria and fungi, particularly Staphylococcus and Candida species.
- While the overall contamination rate remained low, variations in microbial types over the years were noted, suggesting a need to reassess antibiotics and antifungals used in the corneal storage process.
How Hydrologic Connectivity Regulates Water Quality in River Corridors.
J Am Water Resour Assoc
April 2019
Downstream flow in rivers is repeatedly delayed by hydrologic exchange with off-channel storage zones where biogeochemical processing occurs. We present a dimensionless metric that quantifies river connectivity as the balance between downstream flow and the exchange of water with the bed, banks, and floodplains. The degree of connectivity directly influences downstream water quality - too little connectivity limits the amount of river water exchanged and leads to biogeochemically inactive water storage, while too much connectivity limits the contact time with sediments for reactions to proceed.
View Article and Find Full Text PDFPurpose: This study aims (1) to investigate the feasibility of robot-assisted penetrating keratoplasty (PK) using the new Da Vinci Xi Surgical System and (2) to report what we believe to be the first use of this system in experimental eye surgery.
Methods: Robot-assisted PK procedures were performed on human corneal transplants using the Da Vinci Xi Surgical System. After an 8-mm corneal trephination, four interrupted sutures and one 10.
Article Synopsis
- A study was conducted to analyze adverse events related to corneal grafts from the EFS Bourgogne Franche Comté eye bank in France during 2013, involving surveys sent to surgeons after each graft.
- Out of 407 corneal buttons delivered, 243 surveys were completed, revealing a 27.54% rate of reported adverse events, with primary graft failure and immune rejection being the most common causes.
- The majority of complications occurred within the first year post-surgery, with the French National Agency for Medicines and Health Products Safety (ANSM) documenting only 0.83% of adverse events for the period from 2010 to 2013.