Paul O’Mahoney

ORCID: 0000-0003-3221-5105
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About
Contact & Profiles
Research Areas
  • Skin Protection and Aging
  • Photodynamic Therapy Research Studies
  • Colorectal Cancer Surgical Treatments
  • Infection Control and Ventilation
  • Nonmelanoma Skin Cancer Studies
  • Indoor Air Quality and Microbial Exposure
  • Nanoplatforms for cancer theranostics
  • Surgical Simulation and Training
  • Digital Imaging in Medicine
  • Microfluidic and Bio-sensing Technologies
  • Cardiac, Anesthesia and Surgical Outcomes
  • Orbital Angular Momentum in Optics
  • Circadian rhythm and melatonin
  • Colorectal Cancer Screening and Detection
  • Ocular Surface and Contact Lens
  • Pancreatic and Hepatic Oncology Research
  • Frailty in Older Adults
  • Colorectal and Anal Carcinomas
  • Vitamin D Research Studies
  • Dermatologic Treatments and Research
  • Medical Imaging and Pathology Studies
  • Intergenerational Family Dynamics and Caregiving
  • Climate Change and Health Impacts
  • Photoacoustic and Ultrasonic Imaging
  • Optical Coherence Tomography Applications

UK Health Security Agency
2023-2025

University of Dundee
2014-2023

Ninewells Hospital
2016-2022

NHS Tayside
2016-2022

Molecular Medicine Ireland
2020

Family Carers Ireland
2015-2018

New York Hospital Queens
2015-2017

Presbyterian Hospital
2015-2017

NewYork–Presbyterian Hospital
2015-2017

Cornell University
2014-2017

Many infectious diseases, including COVID-19, are transmitted by airborne pathogens. There is a need for effective environmental control measures which, ideally, not reliant on human behaviour. One potential solution Krypton Chloride (KrCl) excimer lamps (often referred to as Far-UVC), which can efficiently inactivate pathogens, such coronaviruses and influenza, in air. Research demonstrates that when KrCl filtered remove longer-wavelength ultraviolet emissions they do induce acute reactions...

10.1038/s41598-022-08462-z article EN cc-by Scientific Reports 2022-03-23

To determine if 5-year surgeon cumulative and annual volumes predict improved early postoperative outcomes in patients with rectal cancer.Operative experience has been shown to effect surgical outcomes. The differential role of versus volume not yet explored for surgery.The Statewide Planning Research Cooperative System database was used capture undergoing surgery New York State from 2000 2013. A population-based sample major or rectosigmoid resection as their principal procedure during...

10.1097/sla.0000000000001672 article EN Annals of Surgery 2016-02-19

Vitamin B12 deficiency may be an independent risk factor for neural tube defects (NTD). We determined the prevalence of biochemical (<125 pmol/l) among 10 622 Ontarian women aged 15–46 years who underwent concomitant testing serum bhCG and 9 after implementation Canadian folic acid flour fortification. The overall was 7.4%. Relative to non-pregnant women, adjusted odds ratio (95% confidence interval) 0.78 (0.60–1.0) pregnant 28 days gestation or less 1.4 (1.1–1.8) gestation. About 1 in 20...

10.1093/qjmed/hcn031 article EN QJM 2008-01-21

Abstract Far‐UVC, from filtered Krypton‐Chloride lamps, is promising for reducing airborne transmission of disease. While significant research has been undertaken to investigate skin safety these less work on eye safety. There limited data human or discomfort the deployment this germicidal technology. In pilot study, immediate and delayed were assessed in a simulated office environment with located ceiling directed downwards into occupied room. Discomfort was immediately postexposure several...

10.1111/php.13805 article EN cc-by Photochemistry and Photobiology 2023-04-08

The Daylight Illuminant D65, a standardised reference light source in design and research with colour temperature of 6500 K, is often used to describe the daylight. However, it represents an overcast sky, failing capture variability richness actual daylight, particularly blue clear skies. Recent shows that both sunlight skylight significantly influence our mood, perception physiological responses. daylight influenced by factors like sun position, weather conditions, as well geographical...

10.1177/14771535251322618 article EN Lighting Research & Technology 2025-03-13

In recent years, the spectral properties of solar radiation and daylight have become increasingly important in lighting design research, various approaches to implement these been applied. This paper proposes modify adapt CIE reconstruction method, a procedure developed early 1960s define standardised power distributions (SPDs) daylight, for this purpose. The D Illuminants resulting from are widely used standardisation purposes but based on smaller number measurements do not consider...

10.1177/14771535251322386 article EN Lighting Research & Technology 2025-04-15

Daylight PDT (dPDT) is an effective and nearly painless treatment for field‐change actinic keratosis. Measuring the protoporphyrin‐IX (PpIX)‐weighted exposure dose can give indication of when conditions are most viable dPDT. It would be advantageous practitioners if more detailed information appropriate were available. Where sophisticated measurement equipment unavailable, simpler cost‐effective methods desirable. To devise a model whereby illuminance data converted into PpIX‐weighted dose,...

10.1111/bjd.15146 article EN British Journal of Dermatology 2016-10-24

Any potential positive effects conferred via sunlight exposure have to be carefully balanced against carcinogenic effects. Here we provide evidence UK upregulates the cardio protectant nitric oxide (NO) within in vitro skin cell lines with negligible increases DNA damage and death at 1 SED, when compared unexposed samples. The whole of ultraviolet A (UV-A) spectrum appears responsible for NO release, efficiency higher exposures closer shorter UV-A wavelengths decreasing wavelength increases....

10.1038/s41598-023-43653-2 article EN cc-by Scientific Reports 2023-09-28

Benign colon polyps are commonly encountered but may not always be amenable to endoscopic excision because of their size, shape, location, or scarring from previous attempts. The addition laparoscopy allows a greater degree bowel manipulation, the current technique is still limited when encountering polyp with inadequate lifting attributed morphology scarring. We describe an extension existing combined laparoscopic surgery using full-thickness approach increase maneuverability and local...

10.1097/dcr.0000000000000472 article EN Diseases of the Colon & Rectum 2015-12-11

Abstract This study aims to investigate, with computer modeling, the DNA damage (assessed by cyclobutane pyrimidine dimer (CPD) formation) from far‐ultraviolet C (far‐UVC) in comparison sunlight exposure both a temperate (Harwell, England) and Mediterranean (Thessaloniki, Greece) climate. The research utilizes published results Barnard et al. [Barnard, I.R.M (2020) Photodermatol. Photoimmunol. Photomed . 36 , 476–477] determine relative CPD yield of unfiltered filtered far‐UVC exposure....

10.1111/php.13477 article EN Photochemistry and Photobiology 2021-06-23
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