Digital Commons Network^™

Changes In Orthodontic Treatment Modalities In The Past 20 Years: Exploring The Link Between Technology And Scientific Evidence, T. Gerard Bradley

T. Gerard Bradley

Statement of the issue: Is there a link between the many perceived advances in orthodontic techniques/therapy and science in the past 20 years? The purpose of this paper is to take five topics and match the perceptions with the scientific evidence. The variety of appliances and the swings in treatment philosophy have been dramatic, including the swing from extraction to non-extraction therapy, the introduction of space-age wires, appliances that grow mandibles, the introduction and extraordinary growth of Invisalign, and reduced friction brackets to reduce treatment time, all with claims by manufacturers of better results than ever before. The focus is …

The Role Of The Primary School Principal In Developing Student Leadership, Gregory Hine, Shane D. Lavery

Shane D Lavery

The development of student leadership potential is an important issue to investigate (Archard, 2009; Hine, 2013; McNae, 2011). Yet to date, little research efforts have focussed on student leadership development programs within primary schools (K - 6). This research examined three aspects of student leadership within eight Catholic primary schools in metropolitan Perth, Western Australia. These aspects included the principals’ understanding of the term ‘student leadership’, their perception of the most appropriate form of student leadership in Catholic schools, and how they envisaged their role within a student leadership program. Qualitative data were collected through the exercise of semi-structured interviews …

The Role Of The Primary School Principal In Developing Student Leadership, Gregory S.C. Hine, Shane D. Lavery

Shane D Lavery

The development of student leadership potential is an important issue to investigate (Archard, 2009; Author, 2013; McNae, 2011). Yet to date, little research efforts have focussed on student leadership development programs within primary schools (K - 6). This research examined three aspects of student leadership within eight Catholic primary schools in metropolitan Perth, Western Australia. These aspects included the principals’ understanding of the term ‘student leadership’, their perception of the most appropriate form of student leadership in Catholic schools, and how they envisaged their role within a student leadership program. Qualitative data were collected through the exercise of semi-structured interviews …

Physiological And Genetic Correlates Of Boldness: Characterising The Mechanisms Of Behavioural Variation In Rainbow Trout, Oncorhynchus Mykiss, Jack S. Thomson, Phillip C. Watts, Tom G. Pottinger, Lynne U. Sneddon

Lynne Sneddon, PhD

Bold, risk-taking animals have previously been putatively linked with a proactive stress coping style whereas it is suggested shyer, risk-averse animals exhibit a reactive coping style. The aim of this study was to investigate whether differences in the expression of bold-type behaviour were evident within and between two lines of rainbow trout, Oncorhynchus mykiss, selectively bred for a low (LR) or high (HR) endocrine response to stress, and to link boldness and stress responsiveness with the expression of related candidate genes. Boldness was determined in individual fish over two trials by measuring the latency to approach a novel object. Differences …

From Shelf To Shelf: Assessing Historical And Contemporary Genetic Differentiation And Connectivity Across The Gulf Of Mexico In Gag, Mycteroperca Microlepis, Nathaniel Kenneth Jue, Thierry Brule, Felicia C. Coleman, Christopher C. Koenig

Nathaniel Jue

Air Pollution And Stillbirth Risk: Exposure To Airborne Particulate Matter During Pregnancy Is Associated With Fetal Death., E. Defranco, E. Hall, M. Hossain, A. Chen, E. Haynes, D. E. Jones, S. Ren, L. Lu, L. Muglia

David E. Jones

Tb126: Vertical Trends In The Chemistry Of Forest Soil Microcosms Following Experimental Acidification, Ivan J. Fernandez

Ivan J. Fernandez

A soil microcosm experiment was conducted (a) to compare dilute H2SO4, NH4NO3 fertilizer, and prilled S as possible experimental soil-acidifying treatments and (b) to observe soil chemical response to simulated throughfall and acidifying treatments. Simulated throughfall had a significant effect on soil chemistry, resulting in increased exchangeable bases and pH in the mineral soil horizons but little effect on the O horizon. Of the acidification treatments only simulated acid rain had significant effects on soil chemistry when compared to the control and the dry treatments. This reflected the relatively slow dissolution rate of the dry treatments coupled with the short …

The Global Decline Of Reptiles, Deja’ Vu Amphibians, J. Whitfield Gibbons, David E. Scott, Travis J. Ryan, Kurt A. Buhlmann, Tracey D. Tiuberville, Brian S. Metts, Judith L. Greene, Tony Mills, Yale Leiden, Sean Poppy, Christopher T. Winne

Travis J. Ryan

Reptile species are declining on a global scale. Six significant threats to reptile populations are habitat loss and degradation, introduced invasive species, environmental pollution, disease, unsustainable use, and global climate change.

An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson

Philip J. Nyhus

Human-caused biodiversity loss is a global problem, large carnivores are particularly threatened, and the tiger (Panthera tigris) is among the world’s most endangered large carnivores. The South China tiger (Panthera tigris amoyensis) is the most critically endangered tiger subspecies and is considered functionally extinct in the wild. The government of China has expressed its intent to reintroduce a small population of South China tigers into a portion of their historic range as part of a larger goal to recover wild tiger populations in China. This would be the world’s first major tiger reintroduction program. A free-ranging population of 15–20 tigers …

Paul Farmer: Structural Violence And The Embodiment Of Inequality, Fernando De Maio

Fernando De Maio

No abstract provided.