Identity development in career-changing beginning teachers : a qualitative study of professional scientists becoming school teachers

This qualitative study provides a critical case to analyse the identity development of professionals who already have a strong sense of identity as scientists and have decided to relinquish their professional careers to become teachers. The study followed a group of professionals who undertook a one-year teacher education course and were assigned to secondary and middle-years schools on graduation. Their experiences were examined through the lens of self-determination theory, which posits that autonomy, confidence and relationships are important in achieving job satisfaction. The findings indicated that those teachers who were able to achieve this sense of autonomy and confidence, and had established strong relationships with colleagues generated a positive professional identity as a teacher. The failure to establish supportive relationships was a decisive event that challenged their capacity to develop a strong sense of identity as a teacher

Fish and Federalism: How the Asian Carp Litigation Highlights a Decifiency in the Federal Common Law Displacement Analysis

In response to the growing threat posed by the progress of Asian carp up the Mississippi River toward the Great Lakes, and with increased frustration with the federal response to the imminent problem, in 2010, five Great Lakes states sued the Army Corps of Engineers and the Metropolitan Water Reclamation District of Greater Chicago to force a more desirable and potentially more effective strategy to prevent the Asian carp from infiltrating the Great Lakes: closing the Chicago locks. This Note examines the federal common law displacement analysis through the lens of the Asian carp litigation. Both the Federal District Court for the Northern District of Illinois and the United States Court of Appeals for the Seventh Circuit denied the plaintiff States’ request for a preliminary injunction, but allowed the plaintiffs to proceed with their federal common law claim against the Army Corps of Engineers. While both the district court and court of appeals correctly determined that the plaintiff States’ federal common law nuisance claim was not displaced by congressional action and could thus continue to the merits stage, both courts failed to recognize the important and fundamental federalist function, i.e., exercising their sovereign function, that the states were performing in bringing their suit

Food Ontology and Distribution: Ethical Perception and the Food Object

In predominantly service and information-based economies, the pivotal role food plays in the maintenance of life has arguably become neglected as an object of ethical and political contemplation. We often fail to realize that the incarceration of food by the commodity form degrades the food object itself as well as guaranteeing continued dependency on the wage. In a generalized commodity society, labour power is the only thing a person has to sell in order to buy her bread. This leaves us vulnerable in the event of an environmental crisis because we do not have direct access to food sources. The capitalist mode of distribution forms the limits of possibility for humans and other beings. This thesis argues that, without direct access to the means of subsistence, the subject is limited in her movement and interactions with others, except where the universal equivalent grants her access to go

Fish and Federalism: How the Asian Carp Litigation Highlights a Decifiency in the Federal Common Law Displacement Analysis

In response to the growing threat posed by the progress of Asian carp up the Mississippi River toward the Great Lakes, and with increased frustration with the federal response to the imminent problem, in 2010, five Great Lakes states sued the Army Corps of Engineers and the Metropolitan Water Reclamation District of Greater Chicago to force a more desirable and potentially more effective strategy to prevent the Asian carp from infiltrating the Great Lakes: closing the Chicago locks. This Note examines the federal common law displacement analysis through the lens of the Asian carp litigation. Both the Federal District Court for the Northern District of Illinois and the United States Court of Appeals for the Seventh Circuit denied the plaintiff States’ request for a preliminary injunction, but allowed the plaintiffs to proceed with their federal common law claim against the Army Corps of Engineers. While both the district court and court of appeals correctly determined that the plaintiff States’ federal common law nuisance claim was not displaced by congressional action and could thus continue to the merits stage, both courts failed to recognize the important and fundamental federalist function, i.e., exercising their sovereign function, that the states were performing in bringing their suit

Effect of Media and Estrogen on Morphological Change in Candida albicans

Introduction: Candida albicans (C. albicans), an opportunistic pathogen, lives symbiotically within the intestine of its human host. Temperature and chemical factors have been shown to induce a morphological change in C. albicans from yeast to filamentous form turning C. albicans pathogenic. In this study, we investigated the intestinal cues that might be responsible for the change. We found that different solid media impact the morphological phenotype so we focused on characterizing these before further testing. We tested Estradiol (E2) because of its known linkage to sepsis and higher levels during infections. Experiments were conducted to compare solid agar plates of YEPD, Minimal Media (MM), and Spider Media (SP) for C. albicans growth to choose the best one for further testing with E2 and other factors that could be prone to causing morphological changes. Methods: C. albicans was inoculated through streak method on different solid media (YEPD, MM, SP) and incubated at 30℃. The effect of 0.1nM E2 on C. albicans morphology was also tested. Morphological changes were assayed through bright-field microscopy. Results: Using the three different medias, we found three distinctive phenotypes: A, B, and C. Out of 6 experiments of 14 MM plates, the expressed phenotype was 86% A and 14% inconclusive of the time. 8 experiments of 17 SP plates showed 100% of phenotype B. 6 experiments of 14 YEPD plates presented phenotype C 92% of the time and 8% inconclusive. For E2 trials, 2 experiments, 6 MM plates showed 50% phenotype A and 50% inconclusive. 4 experiments, 10 SP plates had phenotype B 100%. YEPD 2 experiments, 2 plates had phenotype C at 100%. Conclusion: We have established experimental conditions of media controls for further testing whether E2 and other cues, such as inflammatory cytokines, have inhibitory or positive effects on the growth of C. albicans

United States Navy - Canadian forces solid state flight data recorder/crash position locator experiment on the B-720 controlled impact demonstration

The operation of a radio beacon position locator during and after the remotely controlled transport aircraft is discussed. The radio beacon transmission was actuated and was picked up by the Navy P-3A chase aircraft for a short time, after which reception was lost. The pilot reported that he received a signal on both 121.5 MHz and 243 MHz for a period of approximately 5 seconds. Five minutes after the crash a portable direction finding unit located on the roof of the NASA Dryden Flight Research Facility, 4 miles distant from the crash, was unable to pick up the beacon transmission. The fire crews started fighting the fires approximately 90 seconds after the time of impact. Navy personnel access to the crash site was allowed on the morning of December 2, 1984. Radio beacon locator was found resting top side up, 15 feet forward and 13 feet perpendicular from the tray location the starboard side of the aircraft. An immediate inspection indicated the airfoil suffered moderate fire damage with paint peeling but not intumescing. The visual marker strobe lamp housings were intact but extensively burned such that it was impossible to see if the lamps had survived. The airfoil suffered minor structural damage, with assorted dents, etc. The extended plunger on the ARU-21 release unit indicated that the pyrotechnic deployment system operated. The radio beacon base (tray) suffered some heat and fire damage, and was charred and blackened by smoke. The frangible switch in the nose survived and the switch in the belly was recovered and found to have actuated. It is assumed that this switch fired the ARU-21 squib. There were no other release switches installed in the normally open system in the aircraft

Spatial Variation in Erosion Rates in Mars Equatorial Regions Inferred from Ejecta Retention of 1-3 Km Diameter Craters

The modification of impact craters has long been used to infer the geomorphic forcing on Mars [1], as well as estimate the spatial and temporal variability of this erosion and gradation [e.g., 2]. Here, we studied the population of small primary craters (1-3 km) to understand differences in ejecta retention across equatorial Mars. Specifically, we evaluated whether craters in our study population had observable ejecta deposits (defined on the basis of distinct tone or texture with respect to their surroundings).This is a proxy for the resurfacing rate because only relatively fresh craters retain their ejecta deposits. More broadly, this is part of a larger project we are undertaking [3] to examine crater morphometry and other characteristics from CTX-derived digital terrain models (DTMs), augmented by qualitative observations

A general framework for integrating environmental time series into stock assessment models: model description, simulation testing, and example

We present a method to integrate environmental time series into stock assessment models and to test the significance of correlations between population processes and the environmental time series. Parameters that relate the environmental time series to population processes are included in the stock assessment model, and likelihood ratio tests are used to determine if the parameters improve the fit to the data significantly. Two approaches are considered to integrate the environmental relationship. In the environmental model, the population dynamics process (e.g. recruitment) is proportional to the environmental variable, whereas in the environmental model with process error it is proportional to the environmental variable, but the model allows an additional temporal variation (process error) constrained by a log-normal distribution. The methods are tested by using simulation analysis and compared to the traditional method of correlating model estimates with environmental variables outside the estimation procedure. In the traditional method, the estimates of recruitment were provided by a model that allowed the recruitment only to have a temporal variation constrained by a log-normal distribution. We illustrate the methods by applying them to test the statistical significance of the correlation between sea-surface temperature (SST) and recruitment to the snapper (Pagrus auratus) stock in the Hauraki Gulf–Bay of Plenty, New Zealand. Simulation analyses indicated that the integrated approach with additional process error is superior to the traditional method of correlating model estimates with environmental variables outside the estimation procedure. The results suggest that, for the snapper stock, recruitment is positively correlated with SST at the time of spawning

From Scientist to Science Teacher: A Career Change Teacher in Transition

One method of addressing the shortage of science and mathematics teachers is to train scientists and other science-related professionals to become teachers. Advocates argue that these career changers as discipline experts can relate the subject matter knowledge to various contexts and applications. In this paper, through interviews with a former scientist and her students, we examine how one career changer used her expertise in microbiology to teach microscopy. These interviews provided the basis for a description of the teacher’s instruction which was then analysed for components of domain knowledge for teaching. Consistent with the literature, the findings revealed that this career changer needed to develop her pedagogical knowledge. However, an interesting finding was that the teacher’s subject matter as a science teacher differed substantively from her knowledge as a scientist. This finding challenges the assumption that subject matter is transferable across professions and provides insight into how to better support career changers to transition from scientist to science teacher

Using airborne LiDAR Survey to explore historic-era archaeological landscapes of Montserrat in the eastern Caribbean

This article describes what appears to be the first archaeological application of airborne LiDAR survey to historic-era landscapes in the Caribbean archipelago, on the island of Montserrat. LiDAR is proving invaluable in extending the reach of traditional pedestrian survey into less favorable areas, such as those covered by dense neotropical forest and by ashfall from the past two decades of active eruptions by the Soufrière Hills volcano, and to sites in localities that are inaccessible on account of volcanic dangers. Emphasis is placed on two aspects of the research: first, the importance of ongoing, real-time interaction between the LiDAR analyst and the archaeological team in the field; and second, the advantages of exploiting the full potential of the three-dimensional LiDAR point cloud data for purposes of the visualization of archaeological sites and features