Making postgraduate students and supervisors aware of the role of emotions in the PhD process

Emotions are an integral part of the PhD process. A range of emotions are common and to be expected. How do emotions affect the PhD process for both postgraduate students and their supervisors? How can we make our emotions work positively for us in the PhD process? To explore answers to these questions, three lecturers currently supervising postgraduates and three postgraduates at various stages in their doctoral studies collectively pooled their experiences. We developed an interactive workshop that was recently conducted for postgraduate students at Murdoch University and at the Australian Association for Social Research annual conference 2002. This presentation will explore the role that emotions play in the PhD process and how supervisors and postgraduates alike can benefit from reflecting on this issue. A number of practical (and humorous) tips will be provided as well as examples from others' PhD experiences. The role of emotions at the beginning, middle and end of a PhD program will be explored. The data collection and analysis phases are a time when emotions may run riot. Trepidation is especially common when fieldwork or data collection is involved, as is anger when postgraduate's views about how the world works are challenged and then sadness (and relief!) when the data collection phase is finished. We will discuss how supervisors can assist their postgraduates to make these feelings work for them. The presentation will also explore the emotions that arise from the supervisor-postgraduate partnership

Value Added: Best Practices For The Utilization Of Assistant Principals' Skills And Knowledge In Schools

There are many demands on schools today to perform at a high level with competence that improves teaching and learning and promotes higher student achievement. When students perform below national standards, schools may be given a “no vote of confidence” from the public. Therefore, principals in schools need to find ways to groom and utilize the talents of assistant principals in a broader capacity. The assistant principal is the individual who should work closely with the principal to handle management and instructional matters within the school. Too many school districts today have principals who continue to under utilize the strong talents, skills, knowledge of the assistant principal (Bolman & Terrence, 2002). Typical uses of an assistant principal in too many schools include being on hall, bus, recess, and cafeteria duty and handling of student discipline on a daily basis. Some assistant principals bring to the school setting skills and knowledge related to broader practices for improving instruction and management in schools. In order to help create and maintain effective schools, there should be identified ways to improve the use of assistant principals’ skills and knowledge that could impact teaching and learning. A central part of being a great school leader is to cultivate the leadership skills of others, especially the assistant principal (Darling-Hammond, 2007). The purpose of this study is to discuss the contemporary role of today’s assistant principals including getting to know the assistant principal, value in shared leadership, developing the assistant principal’s leadership skills, use of technology, and the professional learning community. The benefits of this study hopefully will remind principals and school leaders to assess the skills and knowledge that the assistant principal brings to the school setting and to utilize those talents for improving school performance. The effective principal will also continue to provide opportunities for leadership development and engagement for the assistant principal in meaningful ways that support strong instructional leadership

Changes in the diet and body size of a small herbivorous mammal (hispid cotton rat, \u3ci\u3eSigmodon hispidus\u3c/i\u3e) following the late Pleistocene megafauna extinction

The catastrophic loss of large-bodied mammals during the terminal Pleistocene likely led to cascading effects within communities. While the extinction of the top consumers probably expanded the resources available to survivors of all body sizes, little work has focused on the responses of the smallest mammals. Here, we use a detailed fossil record from the southwestern United States to examine the response of the hispid cotton rat Sigmodon hispidus to biodiversity loss and climatic change over the late Quaternary. In particular, we focus on changes in diet and body size. We characterize diet through carbon (δ13C) and nitrogen (δ15N) isotope analysis of bone collagen in fossil jaws and body size through measurement of fossil teeth; the abundance of material allows us to examine population level responses at millennial scale for the past 16 ka. Sigmodon was not present at the cave during the full glacial, first appearing at ~16 ka after ice sheets were in retreat. It remained relatively rare until ~12 ka when warming tempera­tures allowed it to expand its species range northward. We find variation in both diet and body size of Sigmodon hispidus over time: the average body size of the population varied by ~20% (90–110 g) and mean δ13C and δ15N values ranged between −13.5 to −16.5‰ and 5.5 to 7.4‰ respectively. A state–space model suggested changes in mass were influenced by diet, maximum temperature and community structure, while the modest changes in diet were most influenced by community structure. Sigmodon maintained a fairly similar dietary niche over time despite contemporaneous changes in climate and herbivore community composition that followed the megafauna extinc­tion. Broadly, our results suggest that small mammals may be as sensitive to shifts in local biotic interactions within their ecosystem as they are to changes in climate and large-scale biodiversity loss

A model based on clinical parameters to identify myocardial late gadolinium enhancement by magnetic resonance in patients with aortic stenosis: An observational study

Objective With increasing age, the prevalence of aortic stenosis grows exponentially, increasing left heart pressures and potentially leading to myocardial hypertrophy, myocardial fibrosis and adverse outcomes. To identify patients who are at greatest risk, an outpatient model for risk stratification would be of value to better direct patient imaging, frequency of monitoring and expeditious management of aortic stenosis with possible earlier surgical intervention. In this study, a relatively simple model is proposed to identify myocardial fibrosis in patients with a diagnosis of moderate or severe aortic stenosis. Design Patients with moderate to severe aortic stenosis were enrolled into the study; patient characteristics, blood work, medications as well as transthoracic echocardiography and cardiovascular magnetic resonance were used to determine potential identifiers of myocardial fibrosis. Setting The Royal Brompton Hospital, London, UK Participants One hundred and thirteen patients in derivation cohort and 26 patients in validation cohort. Main outcome measures Identification of myocardial fibrosis. Results Three blood biomarkers (serum platelets, serum urea, N-terminal pro-B-type natriuretic peptide) and left ventricular ejection fraction were shown to be capable of identifying myocardial fibrosis. The model was validated in a separate cohort of 26 patients. Conclusions Although further external validation of the model is necessary prior to its use in clinical practice, the proposed clinical model may direct patient care with respect to earlier magnetic resonance imagining, frequency of monitoring and may help in risk stratification for surgical intervention for myocardial fibrosis in patients with aortic stenosis

Recreational trampling negatively impacts vegetation structure of an Australian biodiversity hotspot

Recreational trampling damage of natural vegetation is an increasing problem in the global context and has the potential to impact on vegetation communities that are of high ecological and socio-economic interest. Wildflower tourism in the national parks of southwest Australia, a global biodiversity hotspot, has the potential to damage the flora on which it depends through trampling. Little research has been previously undertaken in these largely shrub-dominated communities to identify and quantify such impacts. This study is the first to do so, using observational studies of tourists, a descriptive study, and trampling experiments. The behaviours of independent tourists and tour groups were observed. Of the 213 independent visitors observed 41 visitors left trails to view flowers and in the process trampled vegetation. Vegetation height and cover were measured at three sites frequented by wildflower tourists. Vegetation height and cover declined in response to use by tourists. Trampling experiments, which relied on trampling treatments of 0, 30, 100, 200, 300/500 passes, where 0 passes represents the control, were applied at four sites. Trampling led to a significant reduction in vegetation height immediately post-treatment, for all treatments, with a non-significant recovery over time. Trampling also significantly reduced vegetation cover, with the resistance indices for these experimental sites ranging from 30 to 300 passes. Collectively these results illustrate the low resilience and resistance of these valued communities and the possible impacts of wildflower and other nature based tourism, through trampling. The paper concludes with suggested management strategies, which strongly emphasise the importance of education for the tourism industry and provide for international comparisons in regard to recreational trampling impacts on biodiverse shrub land communities

Perception amongst dental professionals on potentially-malignant lesions and oral cancer

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Scoping recreational disturbance of shorebirds to inform the agenda for research and management in Tropical Asia

In addition to scoping the impacts of the four most reported sources of recreational disturbance on shorebirds, this study also advances the concept of Tropical Asia (TA) to collectively describe tourist destinations in the ecologically and geopolitically diverse part of the planet that incorporates the tourism megaregion of South and Southeast Asia. At a time of growing global concern about the rapid decline of shorebird populations, many governments in TA are embracing and capitalising on the exponential growth in demand for coastal recreation and tourism across the region. This political response is partly driven by efforts to deliver economic development, aligned to the United Nations Sustainable Development Goals, in order to secure the livelihoods of people living in less developed coastal areas. However, the rapid increase in visitor numbers and the development of infrastructure to support the booming demand for coastal tourism destinations in TA are further exacerbating the pressures on shorebird populations across the region. Despite these growing pressures and the wealth of research reporting on shorebird populations across the Asian flyways, this scoping study identified surprisingly little research that reports on the recreational disturbance of shorebirds in TA. While undertaken to inform future research, this study also provides a synthesis of management strategies reported in the global literature into a set of management recommendations for coastal destinations in TA

A unified approach to reverse engineering and data selection for unique network identification

Due to cost concerns, it is optimal to gain insight into the connectivity of biological and other networks using as few experiments as possible. Data selection for unique network connectivity identification has been an open problem since the introduction of algebraic methods for reverse engineering for almost two decades. In this manuscript we determine what data sets uniquely identify the unsigned wiring diagram corresponding to a system that is discrete in time and space. Furthermore, we answer the question of uniqueness for signed wiring diagrams for Boolean networks. Computationally, unsigned and signed wiring diagrams have been studied separately, and in this manuscript we also show that there exists an ideal capable of encoding both unsigned and signed information. This provides a unified approach to studying reverse engineering that also gives significant computational benefits.Comment: 21 page