Moment coefficients of skewness in the femoral neck cortical bone distribution of BAR 1002'00

Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen
A J KuperavageR B Eckhardt

Abstract

The cortical bone distributions in the femoral necks of apes and humans differ as a result of different loading environments caused by the realignment of the hip abductor apparatus. Femoral neck cortical bone in extant humans is very thin superiorly and thicker inferiorly, while the cortical bone in apes tends to be more uniformly thick. The unique internal anatomy of extant humans allows inferences to be made about primary locomotor function from incomplete femora. Here the differences in cortical bone distributions are quantified using moment coefficient of skewness. Skewness coefficients at two locations along the neck of the 6 million years old African femoral specimen BAR 1002'00 were compared to samples of 9 extant adult humans and 10 adult chimpanzees. The skewness coefficients of cortical bone in the femoral neck of BAR 1002'00 are more similar to those of chimpanzees than to humans, although the contrast is less pronounced in the region closer to the neck-shaft junction than more proximally toward the femoral head; this pattern indicates that in at least one respect this specimen attributed to Orrorin tugenensis manifests structural features suggesting influences of a hip abductor apparatus that had not yet evolved to ...Continue Reading

References

Mar 7, 1970·Nature·E D DysonW J Whitehouse
Aug 1, 1993·American Journal of Physical Anthropology·C F SpoorG A Macho
Aug 23, 2001·Medical Image Analysis·E H MeijeringM A Viergever
Oct 11, 2002·Nature·Milford H WolpoffJohn Hawks
Mar 14, 2003·Gait & Posture·Frank C Anderson, Marcus G Pandy
Jan 20, 2004·American Journal of Physical Anthropology·Daniel E LiebermanBrigitte Demes
Feb 15, 2005·Science·James C OhmanAdam J Kuperavage
Mar 22, 2008·Science·Brian G Richmond, William L Jungers

❮ Previous
Next ❯

Citations

May 23, 2012·Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen·M Bleuze
Jan 24, 2013·American Journal of Physical Anthropology·Christopher B Ruff, Ryan Higgins
Jun 22, 2015·Journal of Human Evolution·Mark GrabowskiBrian G Richmond
Jun 21, 2017·Current Biology : CB·Herman Pontzer
Oct 20, 2018·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Adam KuperavageRobert B Eckhardt
Jun 19, 2018·Journal of Human Evolution·Mark GrabowskiWilliam L Jungers

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.