Examining the Clinical Significance and Embryologic Development of Two Unique Cases of Renal Anatomy.

Two unique presentations of renal anatomy were observed during routine cadaveric dissection. The first case presented with an ectopic malrotated left kidney supplied by supernumerary renal arteries. This kidney was drained by a circumaortic renal vein and an inferior polar vein.

Systems thinking-informed and data-driven urban decarbonisation framework for individual, community and urban scale climate action.

There is an urgent need to rapidly reduce greenhouse gas (GHG) emissions and, although human activity is a primary driver of emissions, a knowledge gap remains in terms of the key individual and collective drivers of emissions, and on how to harmonise citizen-led climate action with top-down emissions mitigation policy. In response to this, an urban decarbonisation framework which was informed by systems thinking was developed to support multi-level climate action and decision making. Another aim was to demonstrate the integration of a data-driven and activity-based GHG emissions model for individuals into the framework to enable decarbonisation.

A Unique Case of Vascular Variations in the Upper Limbs: A Brachioradial Artery and Bilateral Persistent Median Arteries With Incomplete Superficial Palmar Arches.

Numerous vascular variations were observed in the upper limbs of a 109-year-old female donor to the Gift Body Program of Saint Louis University School of Medicine. Variations in the right upper limb included the presence of a brachioradial artery (BRA), persistent median artery (PMA), and an ulnar-dominant incomplete type B superficial palmar arch (SPA). In the left upper limb, the brachial artery bifurcated normally into the ulnar artery (UA) and radial artery (RA).

The biogeography of the Amazonian tree flora.

We describe the geographical variation in tree species composition across Amazonian forests and show how environmental conditions are associated with species turnover. Our analyses are based on 2023 forest inventory plots (1 ha) that provide abundance data for a total of 5188 tree species. Within-plot species composition reflected both local environmental conditions (especially soil nutrients and hydrology) and geographical regions.