In 2015, a study showed that Krypton-Chloride (KrCl) excimer lamps could induce erythema and basal layer DNA damage in human skin. Later studies found that filtering out longer wavelength emissions from these lamps resulted in no acute skin effects. However, there is a limited understanding of how much to reduce unwanted emissions and which wavelengths are important. Accurate spectral irradiance data is therefore crucial for safety, as variance in optical filtering significantly affects the weighted irradiance of a lamp. To simplify the risk assessment process for Far-UVC lamps, we highlight the usefulness of the lamp exposure limit (H) and present this in the context of spectral emission data for 14 commercially available Far-UVC lamps. Our results demonstrate that relying solely on a radiometric measurement and a single-wavelength exposure limit at 222 nm could lead to over-exposure. The H is a practical metric which can be utilized to determine the exposure time before reaching the exposure limit. It can also be used in the determination of the minimum ceiling height for compliance with standards like UL 8802. Manufacturers are urged to provide H for their products; installers should adhere to H; and standards and regulatory bodies should insist on this information in new guidance.
Atrazine is a predominant herbicide globally, and its residues are commonly found in natural water bodies due to its extensive use. Atrazine is known for its detrimental effects on the reproductive abilities of aquatic plants and animals. Our study explored the impact of maternal exposure to atrazine on the survival and performance of offspring using the water flea Daphnia magna as a model organism.
Knee osteoarthritis is a chronic degenerative disease associated with pain and decreased mobility that affects advanced-age individuals, thus causing further debilitation. Radiofrequency ablation can benefit patients who are not ideal candidates for surgical intervention and for whom conservative management has been unsatisfactory. Currently, radiofrequency ablation is performed using either ultrasonography or fluoroscopy.
Research on the links between intimate relationships and PTSD and the treatments for PTSD tend to be limited to couples in which only one partner within the dyad has PTSD. No investigations, to our knowledge, have empirically examined the simultaneous provision of evidence-based PTSD treatment to both partners in an intimate relationship diagnosed with PTSD. The current case study describes two partners in a different-sex relationship, both diagnosed with current PTSD, who received individual Prolonged Exposure (PE) therapy at the same time as part of a larger randomized clinical trial.
Nowadays, consumption of fish is becoming a public health concern due to quality and safety issues. This study was designed to assess the proximate composition, microbial quality, and heavy metal accumulation in the Nile tilapia fillet at three selected landing sites in Lake Tana. Fifteen samples were collected and analyzed.
Background: The clinical significance of natural and treatment-emergent antibodies specific for amustaline/glutathione pathogen-reduced red blood cells (PRRBCs) is not known.
Study Design And Methods: A Phase 3, randomized clinical trial of PRRBCs (ReCePI) compared PRRBCs with conventional RBCs in cardiac or thoracic-aorta surgery. Subjects transfused during and for 7 days after surgery were screened for PRRBC-specific antibodies at baseline, 28 and 75 days post-surgery.
