Arthroscopic Inlay Suprapectoral versus Mini-Open Onlay Subpectoral Biceps Tenodesis: A Prospective, Randomized Analysis of Clinical Outcomes and Ultrasound-Assessed Structural Integrity.

Background: Surgical techniques for biceps tenodesis vary in approach, fixation strategy, and anatomic location without clear superior technique for this common procedure.

Hypothesis/purpose: The purpose of this study was to prospectively evaluate a randomized cohort of patients undergoing arthroscopic suprapectoral (ASBT) with interference screw fixation using an inlay technique versus mini-open subpectoral (MOBT) with a unicortical button implant using an onlay technique with regards to 1) clinical outcome measures and 2) structural healing as evaluated by ultrasound.

Methods: From May 2017 to April 2021, patients undergoing biceps tenodesis were preoperatively randomized to either ASBT or MOBT.

Clustered warming tolerances and the nonlinear risks of biodiversity loss on a warming planet.

Anthropogenic climate change is projected to become a major driver of biodiversity loss, destabilizing the ecosystems on which human society depends. As the planet rapidly warms, the disruption of ecological interactions among populations, species and their environment, will likely drive positive feedback loops, accelerating the pace and magnitude of biodiversity losses. We propose that, even without invoking such amplifying feedback, biodiversity loss should increase nonlinearly with warming because of the non-uniform distribution of biodiversity.

Phenological variation in biotic interactions shapes population dynamics and distribution in a range-shifting insect herbivore.

Phenological responses to climate change vary across trophic levels. However, how trophic phenological synchrony determines species' distributions through its effects on population dynamics has rarely been addressed. Here, we show that phenological variation underlies population and geographical range dynamics in a range-shifting herbivore, and demonstrate its interplay with changing trophic interactions.

The relationship between the body and air temperature in a terrestrial ectotherm.

Ectotherms make up the majority of terrestrial biodiversity, so it is important to understand their potential responses to climate change. Often, models aiming to achieve this understanding correlate species distributions with ambient air temperature. However, this assumes a constant relationship between the air temperature and body temperature, which determines an ectotherm's thermal performance.

Atroposelective Synthesis of Axially Chiral Naphthylpyrroles by a Catalytic Asymmetric 1,3-Dipolar Cycloaddition/Aromatization Sequence.

A straightforward methodology for the enantioselective preparation of axially chiral 2-naphthylpyrroles has been developed. This protocol is based on a Cu/Fesulphos-catalyzed highly enantioselective 1,3-dipolar cycloaddition of an azomethine ylide followed by pyrrolidine alkylation and pyrrolidine to pyrrole oxidation. The mild conditions employed in the DDQ/blue light-mediated aromatization process facilitate an effective central-to-axial chirality transfer affording the corresponding pyrroles with high atroposelectivity.