A biomimetic "cactus spine" with hierarchical groovestructure is designed and fabricated using simple electrospinning. This novel artificial cactus spine possesses excellent fog collection and water transportation ability. A model cactus equipped with artificial spines also shows a great water storage capacity. The results can be helpful in the development of water collectors and may make a con...

This entire special issue of Global Spine Journal is devoted to one topic: “Rare Complications of Cervical Spine Surgery.” This was a combined effort of some of the leading cervical spine surgeons in North America, who pooled their clinical data for this project. Fortunately, these are complications that most surgeons will never experience, since they are, by definition, rare. But because of th...

Fossils from a large-bodied hominoid from early Miocene sediments of Uganda, along with material recovered in the 1960s, show features of the shoulder and vertebral column that are significantly similar to those of living apes and humans. The large-bodied hominoid from Uganda dates to at least 20.6 million years ago and thus represents the oldest known hominoid sharing these derived characters ...

11 Disturbance from the normal developmental trajectory of a trait during growth – the so-called 12 developmental instability – can be observed morphologically through phenodeviants and subtle 13 deviations from perfect symmetry (fluctuating asymmetry). This study investigates the relationship 14 between phenodeviance in the human vertebral column (as a result of axial patterning defects) and 1...

Three resupinate basidiomycetes from Hawai‘i with toothed hymenophores are described and illustrated. Phlebia acanthocystis is a newly described taxon that has cystidia with apical pegs or spines. The new combination Phlebia subfascicularis is proposed for Acia subfascicularis, originally described from Australia. Mycoacia kurilensis, described from the Kuril Islands, is reported from Hawai‘i f...

Many animals have two basic traits for avoiding being killed by a predator: behavioral modification and morphological defense. We examined the relationship between antipredator behavior and morphological defense in larvae of three closely related dragonfly species within the genus Leucorrhinia. The three species differ with regard to their morphological defense as expressed in the length of the...

STUDY DESIGN Repeated measures study of active and passive movements in patients with neck pain. OBJECTIVES To determine if, following manual therapy: (1) changes occur in active range of movement (AROM) and stiffness of posteroanterior (PA) movements, (2) such changes are dependent on the location treated, and (3) there is a relation between changes in PA stiffness and AROM. SUMMARY OF BAC...

STUDY DESIGN Seven adult human cadaveric cervical spines (C2-T1) were biomechanically tested in a programmable testing device. OBJECTIVE Compare the effects of incremental single-level fusion at different levels of the cervical spine. SUMMARY OF BACKGROUND DATA Clinical studies have reported degenerative symptomatic disc disease at disc levels adjacent to fusion. No known study has attempte...

Little work has been done on the skeletal system of allophenic mice (chimaeras). In this paper we re-examine the evidence presented for the clonal theory of vertebral development using quantitative methods which take account of variation. We conclude that the clonal theory is either an overly simplistic approximation of the real situation, or that the evidence so far given in its support is uns...

Approved: ____________________________________ Thesis Supervisor ____________________________________ Title and Department ____________________________________ Date 1 THE BIOMECHANICS OF THE SHEEP CERVICAL SPINE: AN EXPERIMENTAL AND FINITE ELEMENT ANALYSIS by Nicole Ann DeVries A thesis submitted in partial fulfillment of the requirements for the Doctor of Philosophy degree in Biomedical Engine...