Lichen secretes organic acids, particularly oxalic acid, which can dissolve minerals. It has wormed its way into stone surfaces by more than 0.6 inches. Its spread is driven by acid rain ...

Black spots can disrupt the look of your patios and paving, but luckily you can tackle it with a household item that is cheap ...

The fight, which began years ago, is aimed at stopping the threat to the integrity of the site's structures and its intricate carvings from lichens, organisms that grow on surfaces like stone and ...

In keeping with the rest of the area, the vast majority of YWT’s eight Ingleborough reserves also have dry stone wall boundaries. Keeping them maintained is a constant and ongoing process, with wall ...

This confirms the clinical impression of lichen planus. Lichen planus (LP) is an inflammatory, pruritic, papulosquamous skin disease. This papulosquamous disease may also involve the hair follicle ...

They are fighting lichens, organisms that grow on surfaces like stone and can slowly break them down. “This is the most serious problem, especially for carvings on stones,” said Shahram Rahbar ...

Lichen planus is more of a chronic discomfort than a serious health concern. However, people with the oral form have a slightly higher risk of developing oral cancer. Lichen planus is a group of ...

Research at Mars analog sites in Utah and Nunavut focuses on lichen diversity, helping to predict lichen survival on Mars and aiding our understanding of these organisms both on Earth and potentially ...

During the Mars 160—a set of twin missions to both Utah and Nunavut in 2016 and 2017—our team undertook a floristic survey of the lichen biodiversity present at each site.

A collection-based survey of lichen species at the Mars Desert Research Station in Utah, USA and Flashline Mars Arctic Research Station in Nunavut, Canada was conducted as part of the Mars-160 ...

Kidney Stone. I also visited the Debsconeag Ice Caves ... I wove through bare-branched trees to find boulders larger than my ...

Purpose: The stability of a triamcinolone acetonide mouthwash and its efficacy in treating oral lichen planus are described. Results: The mouthwash had a satisfactory shelf life and was well ...