Putative past, present, and future spatial distributions of deep-sea coral and sponge microbiomes revealed by predictive models.

Knowledge of spatial distribution patterns of biodiversity is key to evaluate and ensure ocean integrity and resilience. Especially for the deep ocean, where in situ monitoring requires sophisticated instruments and considerable financial investments, modeling approaches are crucial to move from scattered data points to predictive continuous maps. Those modeling approaches are commonly run on the macrobial level, but spatio-temporal predictions of host-associated microbiomes are not being targeted.

Reversible Capture Mechanism of CO as a Zn(II)-Methylcarbonate.

In this study, we elucidate the reaction mechanism for capturing CO with the ZnL(MeOH) complex (L=diacetyl-2-(4-methyl-3-thiosemicarbazone)-3-(2-hydrazinatopyridine)) in a methanol solution, using density functional theory calculations. One pathway involves the protonation of ZnL(MeOH) by methylcarbonic acid, followed by ligand exchange of MeOH with MeOCO . An alternative mechanism suggests a tautomerization between ZnL(MeOH) and Zn(HL)(OMe), followed by CO insertion.

Breaking the plane: BH is a three-dimensional structure.

In this study, we delved into the structure of BH and questioned some of its accepted assumptions. By exploring the potential energy surface, we found a new three-dimensional structure as the global minimum. This finding is in contrast with the previously hypothesized planar and cage-like models.

Unveiling the electronic and structural consequences of removing two electrons from BH.

The notion that a regular icosahedron is unattainable in neutral BH has persisted for nearly 70 years. This is because 24 valence electrons are used for B-H bonds, while another 24 electrons are necessary to maintain the deltahedron, unlike the 26 used in the dianion. According to Wade-Mingos rules, the neutral system should be a deltahedron with a capped face.

Hiatal hernia repair with biosynthetic mesh reinforcement: a qualitative systematic review.

Introduction: Reinforcement of crural closure with synthetic resorbable mesh has been proposed to decrease recurrence rates after hiatal hernia repair, but continues to be controversial. This systematic review aims to evaluate the safety, efficacy, and intermediate-term results of using biosynthetic mesh to augment the hiatus.

Methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed throughout this systematic review.