Digital Commons Network^™

The Effect Of Celite Formulated Rhizobium Rubi At3-4rs/6 And Tryptophan On Velvetleaf Plant Growth, Jonathon Ahn

Honors Theses

Rhizobium rubi AT3-4RS/6 and tryptophan may be useful in replacing chemical herbicides as biological control agents (Kennedy et al., 1990). Previous research has shown that Rhizobium rubi AT3-4RS/6 produces IAA-like compounds that are deleterious to weed growth. In this project R. rubi AT3-4RS/6 will be formulated in Celite, a granular, diatomaceous earth carrier. The purpose of this research is to analyze if tryptophan influences R. rubi AT3-4RS/6 populations in the velveltleaf rhizosphere, and if this colonization is associated with reduced root weight and shoot length. The experiment design consists of five soil treatments (bacteria+tryptophan+celite, tryptophan+celite, bacteria+celite, celite alone, and soil …

Factors Affecting Phonotaxis In Male House Crickets, Acheta Domesticus, Erik Thordarson

Honors Theses

This research addresses some of the possible factors that affect male Acheta domesticus phonotactic responses to calls of males of the same species. The study examines cricket age and social interaction with females as possible factors affecting this behavior. Through Friedman rank test analysis, the study attempts to demonstrate a link between these factors and the responsiveness of the male crickets in the study. As the crickets aged, they responded to a wider ranges of syllable periods, which may imply that they follow a similar pattern of decreasing selectivity in their response with age as their female counterparts. A Friedman's …

A Republic 'On Earth As It Is In Heaven': The Freedom Of The Fall In Paradise Lost And His Dark Materials, Jordan Arellano

Honors Theses

The epic poem Paradise Lost (1667, 74) retells the Biblical creation story through the blind eyes of the Christian political-poet John Milton. Three hundred years later, Milton's work is recast by the atheist children's and fantasy novelist Philip Pullman in the His Dark Materials trilogy (1995, 97, 2000). Although one might assume that these two writers' perspectives would contradict one another, Pullman's adaptation - though a perverted story of the Fall - still pursues the same goal as Milton's by imagining a new and better social structure. And not only do they share that goal, but they also explore the …

Editor's Page, Randall W. Younker

Journal of the Adventist Theological Society

No abstract provided.

Mentoring And Discipling The Early Adolescents Of The Kitchener-Waterloo Seventh-Day Adventist Church, Jiwan S. Moon

Doctor of Ministry Projects

Problem

From 1951 to 2001, at the Kitchener-Waterloo Seventh-day Adventist Church, only one family from the founding generation has its children and grandchildren attending and active in the church. Most of the second and third generation members of the church who once attended, no longer practice their inherited Adventist religious beliefs. As the church membership was aging, the church was dying and membership continued to decrease, especially the number of young people. It was becoming evident that the church needed intervention to prevent continuous loss of members. In order to prevent a repeat of history, there was a need for …

Potomac Conference Adcom Team Transitional Journey From Hierarchical To Servant Leadership, William K. Miller

Doctor of Ministry Projects

Problem. The research of Wong and Page (2003) has suggested that no denominational church leadership models utilize a biblical servant leadership model. Most denominational leadership models utilize some form of an authoritarian hierarchical model. This suggests the need for a curriculum that can assist a denominational leadership team to transition to a biblical servant leadership model.

Methodology. This project utilized a qualitative methodology. A curriculum was developed utilizing assessments, seminars, coaching, and group feedback in order to create an environment to transition to a biblical servant leadership model for the Potomac Conference ADCOM team.

Results. There were seven members of …

Health And Social Ministries: A Holistic Approach To Ministering In Contemporary Society, Ezekiel Adeyemi Oyinloye

Doctor of Ministry Projects

Problem

It has been observed for thirty years that Adventists conventional way of doing outreach ministries especially in the cities, fail to have expected response that fulfills goals. Attitudes of people are apathetic and reserved they stand aloof and are removed from sharing in what has been offered. They cannot be bothered. The inner city of Ibadan especially displays this type of attitude. Thus, inner city Ibadan has remained unentered by the Adventists since the inception of the Church in Ibadan a century ago. There is no single church of the Seventh-day Adventists in inner city Ibadan.

Method

A strategy …

A Strategy To Train Local Church Elders For Effective Assimilation And Nurture Of New Converts, Enock Chifamba

Doctor of Ministry Projects

Problem

In most multi-church districts the pastoral burden rests with the local church elders. However, these elders receive little or no training concerning the important pastoral duty of assimilation and nurture of new converts into a local church fellowship. Thus, new converts often feel isolated and neglected and some either backslide or remain inactive in their new-found faith. In the East Zimbabwe Conference 18,349 new members were added in 2010 bringing its membership to 247,935 with only 56 district pastors. The conference needs a cost effective strategy to nurture new members.

Method

The role of elders as pastoral care givers …

Pharmacological Modulation Of Nad Alters Tnf-Α Responses In Macrophage Subsets, A Al-Shabany, Aj Moody, Ad Foey, Ra Billington

School of Biological and Marine Sciences

No abstract provided.

Application Of A Novel Decision Support System To Assess And Manage Coastal Flood Risk In The Teign Estuary, Uk., Santamaria R Gonzalez, D Simmonds, B Zanuttigh, D Reeve, R Nicholls, R Thompson, S Pan, J Horrillo-Caraballo, S Hoggart, S Hanson, E Penning-Rowsell, A Fox, M Hanley

School of Engineering, Computing and Mathematics

This paper demonstrates the application of a Decision Support System (DSS) developed for decision makers and stakeholders to manage and raise awareness of coastal flood risk. The DSS is a GIS-based framework that predicts flooding consequences and is structured around the Source Pathway Receptor Consequence (SPRC) model. The DSS draws together points of view from engineering, ecology and socio-economics, allowing the comparative assessment of the consequences of a range of management interventions. The utility of the tool is demonstrated through application to an estuary field site - the Teign estuary in UK. Vulnerability maps, generated by the DSS for pre-set …

On The Electrodynamics Of Neural Networks, S Rodrigues, Pb Graben

School of Engineering, Computing and Mathematics

We present a microscopic approach for the coupling of cortical activity, as resulting from proper dipole currents of pyramidal neurons, to the electromagnetic field in extracellular fluid in presence of diffusion and Ohmic conduction. Starting from a full-fledged three-compartment model of a single pyramidal neuron, including shunting and dendritic propagation, we derive an observation model for dendritic dipole currents in extracellular space and thereby for the dendritic field potential that contributes to the local field potential of a neural population. Under reasonable simplifications, we then derive a leaky integrate-and-fire model for the dynamics of a neural network, which facilitates comparison …

Toward A Self-Organizing Pre-Symbolic Neural Model Representing Sensorimotor Primitives, J Zhong, A Cangelosi, S Wermter

School of Engineering, Computing and Mathematics

The acquisition of symbolic and linguistic representations of sensorimotor behavior is a cognitive process performed by an agent when it is executing and/or observing own and others' actions. According to Piaget's theory of cognitive development, these representations develop during the sensorimotor stage and the pre-operational stage. We propose a model that relates the conceptualization of the higher-level information from visual stimuli to the development of ventral/dorsal visual streams. This model employs neural network architecture incorporating a predictive sensory module based on an RNNPB (Recurrent Neural Network with Parametric Biases) and a horizontal product model. We exemplify this model through a …

A Step-Wise Process Of Decision-Making Under Uncertainty When Implementing Environmental Policy, Am Knights, F Culhane, Ss Hussain, Kn Papadopoulou, Et Al

School of Biological and Marine Sciences

An ecosystem approach forms the basis of many recent environmental policies. The underlying concept states that decision-makers must consider the environmental, social and economic costs and benefits in the course of deciding whether to implement a management action. Decision-making can be undermined by uncertainty. Here, we discuss potential sources of uncertainty and their effect on an ecosystem approach-driven environmental policy, the factors affecting the choice and potential for management actions to achieve their objectives, the challenges associated with setting realistic and achievable targets, and how we can prioritise management of detrimental activities. We also consider how human challenges such as …

Bilateral Gain Control; An “Innate Predisposition” For All Sorts Of Things, N Wilkinson, G Metta

School of Engineering, Computing and Mathematics

Empirical studies have revealed remarkable perceptual organization in neonates. Newborn behavioral distinctions have often been interpreted as implying functionally specific modular adaptations, and are widely cited as evidence supporting the nativist agenda. In this theoretical paper, we approach newborn perception and attention from an embodied, developmental perspective. At the mechanistic level, we argue that a generative mechanism based on mutual gain control between bilaterally corresponding points may underly a number of functionally defined "innate predispositions" related to spatial-configural perception. At the computational level, bilateral gain control implements beamforming, which enables spatial-configural tuning at the front end sampling stage. At the …

A Developmental Approach To Predicting Neuronal Connectivity From Small Biological Datasets: A Gradient-Based Neuron Growth Model., R Borisyuk, Ak Al Azad, D Conte, A Roberts, Sr Soffe

School of Engineering, Computing and Mathematics

Relating structure and function of neuronal circuits is a challenging problem. It requires demonstrating how dynamical patterns of spiking activity lead to functions like cognitive behaviour and identifying the neurons and connections that lead to appropriate activity of a circuit. We apply a "developmental approach" to define the connectome of a simple nervous system, where connections between neurons are not prescribed but appear as a result of neuron growth. A gradient based mathematical model of two-dimensional axon growth from rows of undifferentiated neurons is derived for the different types of neurons in the brainstem and spinal cord of young tadpoles …

Capture Of Fixation By Rotational Flow; A Deterministic Hypothesis Regarding Scaling And Stochasticity In Fixational Eye Movements, Nm Wilkinson, G Metta

School of Engineering, Computing and Mathematics

Visual scan paths exhibit complex, stochastic dynamics. Even during visual fixation, the eye is in constant motion. Fixational drift and tremor are thought to reflect fluctuations in the persistent neural activity of neural integrators in the oculomotor brainstem, which integrate sequences of transient saccadic velocity signals into a short term memory of eye position. Despite intensive research and much progress, the precise mechanisms by which oculomotor posture is maintained remain elusive. Drift exhibits a stochastic statistical profile which has been modeled using random walk formalisms. Tremor is widely dismissed as noise. Here we focus on the dynamical profile of fixational …

Thinking In Circuits: Toward Neurobiological Explanation In Cognitive Neuroscience., Friedemann Pulvermüller, Max Garagnani, Thomas Wennekers

School of Engineering, Computing and Mathematics

Cognitive theory has decomposed human mental abilities into cognitive (sub) systems, and cognitive neuroscience succeeded in disclosing a host of relationships between cognitive systems and specific structures of the human brain. However, an explanation of why specific functions are located in specific brain loci had still been missing, along with a neurobiological model that makes concrete the neuronal circuits that carry thoughts and meaning. Brain theory, in particular the Hebb-inspired neurocybernetic proposals by Braitenberg, now offers an avenue toward explaining brain-mind relationships and to spell out cognition in terms of neuron circuits in a neuromechanistic sense. Central to this endeavor …

The Effects Of A Competitor On The Foraging Behaviour Of The Shore Crab Carcinus Maenas., Lj Chakravarti, Pa Cotton

School of Biological and Marine Sciences

Optimal Diet Theory suggests that individuals make foraging decisions that maximise net energy intake. Many studies provide qualitative support for this, but factors such as digestive constraints, learning, predation-risk and competition can influence foraging behaviour and lead to departures from quantitative predictions. We examined the effects of intraspecific competition within a classic model of optimal diet--the common shore crab, Carcinus maenas, feeding on the mussel, Mytilus edulis. Unexpectedly, we found that breaking time (Tb), eating time (Te), and handling time (Th) all decreased significantly in the presence of a conspecific. Reduced handling time in the presence of a competitor resulted …

Uptake Epithelia Behave In A Cell-Centric And Not Systems Homeostatic Manner In Response To Zinc Depletion And Supplementation, D Zheng, Gp Feeney, Rd Handy, C Hogstrand, P Kille

School of Biological and Marine Sciences

No abstract provided.

Minimal Effects Of Waterborne Exposure To Single-Walled Carbon Nanotubes On Behaviour And Physiology Of Juvenile Rainbow Trout (Oncorhynchus Mykiss)., D Boyle, Je Fox, Jm Akerman, Ka Sloman, Tb Henry, Rd Handy

School of Biological and Marine Sciences

Fish behaviours are often considered to be sensitive endpoints of waterborne contaminants, but little attention has been given to engineered nanomaterials. The present study aimed to determine the locomotor and social behaviours of rainbow trout (Oncorhynchus mykiss) during waterborne exposure to single-walled carbon nanotubes (SWCNTs), and to ascertain the physiological basis for any observed effects. Dispersed stock suspensions of SWCNTs were prepared by stirring in sodium dodecyl sulphate (SDS), an anionic surfactant, on an equal w/w basis. Trout were exposed to control (no SWCNT or SDS), 0.25 mg L(-1) SDS (dispersant control), or 0.25 mg L(-1) of SWCNT for 10 …

Steps Toward A Shared Governance Response For Achieving Good Environmental Status In The Mediterranean Sea, Sergio Cinnirella, R Sarda, Suarez De Vivero J Luis, Ruth Brennan, Alberto Barausse, John Icely, Tiziana Luisetti, David March, Carla Murciano, Alice Newton, T O'Higgins, Luca Palmeri, Maria Giovanna Palmieri, Pascal Raux, Sian Rees, J Albaiges, Nicola Pirrone, Kerry Turner

School of Biological and Marine Sciences

No abstract provided.

Effects Of Silver Nanoparticles (Nm-300k) On Lumbricus Rubellus Earthworms And Particle Characterization In Relevant Test Matrices Including Soil, Der Ploeg Mjc Van, Rd Handy, Pl Waalewijn-Kool, Den Berg Jhj Van, Zeh Rivera, J Bovenschen, B Molleman, Jm Baveco, P Tromp, Rjb Peters, Gf Koopmans, Imcm Rietjens, Den Brink Nw Van

School of Biological and Marine Sciences

No abstract provided.

Moving Beyond Too Little, Too Late: Managing Emerging Infectious Diseases In Wild Populations Requires International Policy And Partnerships, Jamie Voyles, A. Marm Kilpatrick, James P. Collins, Matthew C. Fisher, Winifred F. Frick, Hamish Mccallum, Craig K.R. Willis, David S. Blehert, Kris A. Murray, Robert Puschendorf, Erica Bree Rosenblum, Benjamin M. Bolker, Tina L. Cheng, Kate E. Langwig, Daniel L. Lindner, Mary Toothman, Mark Q. Wilber, Cheryl J. Briggs

School of Biological and Marine Sciences

Emerging infectious diseases (EIDs) are on the rise due to multiple factors, including human facilitated movement of pathogens, broad-scale landscape changes, and perturbations to ecological systems (Jones et al. 2008; Fisher et al. 2012). Epidemics in wildlife are problematic because they can lead to pathogen spillover to new host organisms, erode biodiversity and threaten ecosystems that sustain human societies (Fisher et al. 2012; Kilpatrick 2011). There have been recent calls for large-scale research approaches to combat the threats EIDs pose to wildlife (Sleeman 2013). While it is true that developing new analytical models, diagnostic assays and molecular tools will significantly …

Toxicity Of Cerium Oxide Nanoparticles To The Earthworm Eisenia Fetida: Subtle Effects, E Lahive, K Jurkschat, Bj Shaw, Rd Handy, Dj Spurgeon, C Svendsen

School of Biological and Marine Sciences

No abstract provided.

The Deep Sea Is A Major Sink For Microplastic Debris, Lucy C. Woodall, Anna Sanchez-Vidal, Miquel Canals, Gordon L.J. Paterson, Rachel Coppock, Victoria Sleight, Antonio Calafat, Alex D. Rogers, Bhavani E. Narayanaswamy, Richard C. Thompson

School of Biological and Marine Sciences

Marine debris, mostly consisting of plastic, is a global problem, negatively impacting wildlife, tourism and shipping. However, despite the durability of plastic, and the exponential increase in its production, monitoring data show limited evidence of concomitant increasing concentrations in marine habitats. There appears to be a considerable proportion of the manufactured plastic that is unaccounted for in surveys tracking the fate of environmental plastics. Even the discovery of widespread accumulation of microscopic fragments (microplastics) in oceanic gyres and shallow water sediments is unable to explain the missing fraction. Here, we show that deep-sea sediments are a likely sink for microplastics. …

Looking Forward Through The Past. Identification Of Fifty Priority Research Questions In Palaeoecology., A Seddon, A Mackay, A Baker, Et Al

School of Geography, Earth and Environmental Sciences

Priority question exercises are becoming an increasingly common tool to frame future agendas in conservation and ecological science. They are an effective way to identify research foci that advance the field and that also have high policy and conservation relevance. To date, there has been no coherent synthesis of key questions and priority research areas for palaeoecology, which combines biological, geochemical and molecular techniques in order to reconstruct past ecological and environmental systems on time-scales from decades to millions of years. We adapted a well-established methodology to identify 50 priority research questions in palaeoecology. Using a set of criteria designed …

Functional Diversity Of Marine Ecosystems After The Late Permian Mass Extinction Event, Wj Foster, Rj Twitchett

School of Geography, Earth and Environmental Sciences

The Late Permian mass extinction event was the most severe such crisis of the past 500 million years and occurred during an episode of global warming. It is assumed to have had significant ecological impact, but its effects on marine ecosystem functioning are unknown and the patterns of marine recovery are debated. We analysed the fossil occurrences of all known Permian-Triassic benthic marine genera and assigned each to a functional group based on their inferred life habit. We show that despite the selective extinction of 62-74% of marine genera there was no significant loss of functional diversity at the global …

Comparative Studies To Assess Bacterial Communities On The Clover Phylloplane Using Mlst, Dgge And T-Rflp, A Prabhakar, Ah Bishop

School of Biological and Marine Sciences

Denaturing gradient gel electrophoresis (DGGE) and terminal restriction fragment length polymorphism (T-RFLP) were used to characterise the changes that occurred in Bacillus cereus group strains present in the phylloplane of clover Trifolium hybridum over 4 months. These strains had previously been analysed by multiple locus sequence typing (MLST). DGGE displayed many equally intense bands which indicated many equally abundant ribotypes. The bacterial community composition was variable and the leaves sampled as little as a week apart were found to have some temporal variability, indicating that diverse phylloplane bacterial communities follow sequential patterns from time to time. The B. cereus group …

Longitudinal Evaluation Of Quality Of Life In 288 Patients With Neurofibromatosis 2, Rosalie E. Ferner, Adam Shaw, D. Gareth Evans, Dympna Mcaleer, Dorothy Halliday, Allyson Parry, F. Lucy Raymond, Juliette Durie-Gair, C. Oliver Hanemann, Rachel Hornigold, Patrick Axon, John F. Golding

Peninsula Medical School

No abstract provided.

Evaluation Of The Microbial Community, Acidity And Proximate Composition Of Akamu, A Fermented Maize Food, Patience C. Obinna-Echem, Victor Kuri, Jane Beal

School of Biological and Marine Sciences

No abstract provided.