Spatiotemporal distribution of global peatland area during the Holocene.

Peatlands are a key component of terrestrial ecosystems, and their development has an important impact on global carbon cycle and climate change. However, the long-term evolution of global peatlands remains uncertain, particularly their spatial distribution. We compiled 4700 basal peatland data during Holocene, and 669 pollen data of Sphagnum with basal and end ages, to allow a more robust reconstruction of the spatial distribution of peatlands.

Acyl-anchored metal-organic cages with interior cryptand-like recognition sites for selective removal of radioactive strontium(II).

Tailored design of organic linkers or metal nodes can introduce desirable functionalities into metal-organic cages (MOCs), significantly expanding their potential applications. In this study, we present a viable approach for engineering acyl-type metal nodes to create interior oxygen-rich sites within MOCs, enabling specific recognition of metal ions, including radioactive contaminants, while maintaining the structural integrity of the MOCs. A novel MOC featuring a uranyl-sealed calix[4]resorcinarene (C[4]R)-based multisite cavity, referred to as UOC, is synthesized as a prototype.

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Littré hernia is the rare protrusion of a Meckel's diverticulum (MD) through a hernia sac. We present a rare case of strangulated MD in a woman patient in her 90s, which required a small intestine resection. She presented with 1 day of groin swelling, no features of bowel obstruction and an irreducible hernia on examination.