Peak-ring basins are important in understanding the formation of large impact basins on planetary bodies; however, debate still exists as to how peak rings form. Using altimetry and image data from the MESSENGER and LRO spacecraft in orbit around Mercury and the Moon, respectively, we measured the morphometric properties of impact structures in the transition from complex craters with central p...

Introduction: Profunda femoris artery (PFA) normally originates from posterolateral aspect of femoral artery and circumflex arteries arise from profunda femoris artery near its origin. As femoral artery (FA) & PFA are commonly assessed for various procedures for diagnosis and treatment for many diseases, knowledge of its course and branching pattern is very important for clinicians to prevent c...

This technical note illustrates that some of the differences that have been reported regarding wheelchair propulsion may be due to the methods used to calculate key variables. Wheelchair ambulation is a very important form of locomotion that lacks a standard pushrim force and moment analysis system. We have developed tools for analyzing upper limb biomechanics during manual wheelchair propulsio...

Patellofemoral osteoarthritis (PFOA) can be associated with anterior knee pain, stiffness, and functional impairment. Some authors report that PFOA affects approximately 9% of patients older than 40 years with a greater prevalence in females. Etiology of PFOA is multifactorial and is related to the presence of abnormal stresses at the PF joint due to knee- and patient-related factors. The need ...

OBJECTIVES To report the repeatability and reproducibility of four different anatomical proximal femoral axis (a-PFA) methods for measuring anatomical lateral distal femoral angle (a-LDFA), and to compare a-LDFA values produced by each method at three different femoral elevation angles. METHODS Digital radiographs were obtained of seven dry canine femora at 0°, 12.5° and 25° elevations. Using...

AO-PFA is an aspect oriented feature modelling language. This report discusses several theoretical issues regarding the weaving process of AO-PFA. The weaving of aspects is to extract subterms from product family terms in the base specification, and then to replace the extracted subterm (selected join points) by another term (advice). The problem of extracting a subterm from another term is rel...

Plakortide F acid (PFA), a marine-derived polyketide endoperoxide, exhibits strong inhibitory activity against the opportunistic fungal pathogens Candida albicans, Cryptococcus neoformans, and Aspergillus fumigatus. In the present study, transcriptional profiling coupled with mutant and biochemical analyses were conducted using the model organism Saccharomyces cerevisiae to investigate the mech...

Planning of an optimal product family architecture (PFA) plays a critical role in defining an organization's product platforms for product variant configuration while leveraging commonality and variety. The focus of PFA planning has been traditionally limited to the product design stage, yet with limited consideration of the downstream supply chain-related issues. Decisions of supply chain conf...