A winter nor’easter flooded streets, closed schools and eroded beaches on Tuesday in Ocean City, but with the rain and wind subsiding before a Tuesday morning high tide, the island escaped major damage.Heavy rain fell overnight and strong northeast winds churned up stormy surf that pounded at Ocean City beaches.The Ocean City School District put out a call early Tuesday canceling classes at all schools. While all three school building remained high and dry through the storm, the district was concerned that bus routes and bus stops would be flooded.The rain began to fade shortly after dawn and stopped long before a 9:41 a.m. high tide on the bay side of Ocean City, when forecasters had predicted the worst tidal flooding.Large stretches of Simpson and Haven avenues were completely underwater, and parts of Bay and West avenues were covered. The north-south thoroughfares closer to the beach were passable, but trips to and from the bay side were possible only on select streets — as is customary in a handful of flooding events each year in Ocean City.In Merion Park, where new pumping stations designed to alleviate nuisance flood are expected to be operational soon, residents had to move cars to higher ground near Roosevelt Boulevard as they often do.The outbound lanes of the Route 52 causeway were closed for a couple hours due to flooding at the foot of the Ninth Street Bridge near Bay Avenue.Beaches across the length of Ocean City took a hit from the storm as the northeast swell pounded at dunes and created small sand cliffs.Posts and sand fencing at the south end of the island were toppling as the waves ate into the protective sand berm near 57th Street on Tuesday morning. The Army Corps of Engineers is expected within the next few days to announce a schedule for a beach replenishment project there.The tide gauge at the Bayside Center on the bay between Fifth and Sixth streets reported a high of 4.52 feet on the NAVD88 scale at 9:48 a.m. Tuesday. By comparison, the tides at the same location were 7.25 feet during Superstorm Sandy on Oct. 29, 2012, 6.35 feet during the Storm of ’62, and 5.25 feet during a memorable nor’easter in November 2009. “Moderate” flooding is considered to start at 3.73 feet on the same scale, “severe” flooding at 4.73 feet.Read the left column below (NAVD88) for a comparison of Tuesday’s 4.52 feet to historic data.__________Sign up for OCNJ Daily’s free newsletter and breaking news alerts“Like” us on Facebook Download (PDF, 29KB)
Source:http://www.cumc.columbia.edu/ Reviewed by James Ives, M.Psych. (Editor)Aug 24 2018A specific wavelength of ultraviolet light, now delivered through light-diffusing optical fibers, is highly effective at killing drug-resistant bacteria in cell cultures, according to a new study led by David J. Brenner, PhD, a professor of radiation biophysics at Columbia University Vagelos College of Physicians and Surgeons. The technology is designed to prevent infections around skin-penetrating medical devices, such as catheters or mechanical heart pump drivelines.Why it MattersInfections from skin-penetrating medical devices, including catheters and drivelines for left ventricular assist devices (LVADs), are a major health threat. For example, an estimated 14 to 28 percent of patients with an LVAD develops a driveline skin infection, leading to complications that limit their use as a long-term therapy for heart failure patients. The most serious of these infections are caused by the drug-resistant bacteria MRSA (methicillin-resistant Staphylococcus aureus).BackgroundIn a previous mouse study, Brenner and his Columbia team demonstrated that a narrow spectrum of far-UVC light, with a wavelength of 207 to 224 nanometers (nm), can kill MRSA bacteria without damaging human skin. Conventional germicidal UV light, with a wavelength of 254 nm, is also effective at killing bacteria, but it can’t be used in health care settings around people because it can harm the skin and eyes. Far-UVC light is safe for people because it can’t penetrate the outer layer of dead skin or the tear layer of the eye, but it’s deadly for bacteria, which are much smaller and easier to penetrate.Related Stories’Eye-in-a-dish’ model helps scientists to uncover ‘surprising’ AMD gene variantResearch sheds light on sun-induced DNA damage and repairResearchers shed light on evolution and diversity of Leptospira bacteriaWhat’s NewThe current study was designed to test whether far-UVC light that is transmitted along a thin fiber could be used to disinfect complex tissue shapes, such as the area where a catheter or a driveline enters the skin. The Columbia team developed a new way to deliver the light, using a laser to send 224 nm far-UVC light through a thin flexible optical fiber. In this study, the fibers were laid directly over tissue cultures containing MRSA bacteria, which were efficiently killed by the far-UVC light diffusing out of the fibers.What it Means”Our study suggests that far-UVC light, delivered by optical fibers that can be incorporated into skin-penetrating devices, could be used to prevent catheter-based and driveline infections,” said Brenner. “This application would be used for catheters or drivelines that have to be kept in place for long periods of time, and it’s hard to keep the area where they penetrate the skin sterile. Incorporating these thin far-UVC-emitting fibers into the catheter or driveline may be the solution.”What’s Next Studies to determine if the technology can prevent infections around skin-penetrating lines in animal models are currently underway.CaveatsThe study was performed on bacteria in laboratory tissue cultures, not on living animals or human patients. In addition, the technology to make the equipment easily portable and affordable is under development.