Management factors affecting the use of pasture by table chickens in extensive production systems

Whether chickens will make proper use of pasture is a problem experienced by producers of free-range and organic chickens. The aims of this project are to identify husbandry techniques and aspects of system design that encourage good pasture use. Two studies have been conducted comprising a winter and a summer flock. The aim of the winter flock was to examine the effect of outdoor artificial shelter on pasture usage. This was done for female Ross 308 birds grown to day 56, and ISA 657 birds grown to day 81. In summer, ISA 657 birds were grown to day 81. Treatments were either standard or enriched brooding, with pasture only or enriched pasture. Standard brooding was in a controlled environment house until day 42. Enriched brooding was in naturally ventilated houses in which birds had sight of pasture from an early age and access from day 21. Enriched pasture included artificial shelter, with straw bales and a conifer “wigwam” used to provide natural shelter. Chickens may be encouraged to go outdoors by brooding in a less “controlled” environment than that used for intensive broilers, and by allowing access to pasture when young. However, mortality was higher. Conifer wigwams may offer a means for more even use of pasture and better distribution of droppings

Integration of organic poultry in whole farm systems: manure nutrient budgets

This report was presented at the UK Organic Research 2002 Conference. The aim of this project was to examine how rotations incorporating organic poultry use the cycling of nutrients between soil, crops and birds. Poultry studies have measured nutrient values of manure in slow growing meat birds at about day 81 when fed typical broiler rations versus “Label Rouge” rations. Nutrient (N, P, K) balances were constructed to assess the viability of integrating poultry production within a theoretical organic rotation. The readilyplant- available nitrogen in manure from Ross 308 birds fed either presumed non-limiting rations or Label Rouge rations was within the range reported for intensive broilers. For ISA 657 birds, the manure readily-plant-available nitrogen was similar to the mean value reported for broilers, when fed presumed non limiting rations, but towards the lower range when fed Label Rouge rations. As breed growth and feed intakes differ it is suggested that to optimise the utilisation of nutrients, the nutrient content of table bird manures should be checked prior to land application. The nutrient budgets were similar for N and P regardless of the length of rotation or form of poultry production. On average, there was a surplus of 85 kg/ha N over all the scenarios. There tended to be a deficit of K in all scenarios (average: 10 kg/ha)

HGNC: The Why and How of Standardised Gene Nomenclature

The HUGO Gene Nomenclature Committee (HGNC) aims to approve a unique gene symbol and gene name for every human gene. Standardisation of gene symbols is necessary to allow researchers and curators to refer to the same gene without ambiguity. Consistent use of gene symbols in publications and across different websites makes it easy for researchers to find all relevant information for a particular gene and facilitates data mining and retrieval. For each gene that we name we curate relevant information including symbol aliases, chromosomal location, locus type, sequence accessions and links to relevant databases. Therefore, our website is a central resource for human genetics. 
 
We endeavour to approve gene symbols that are acceptable to researchers to encourage widespread use of our symbols. In order to achieve this, we contact researchers that work on particular genes for advice before approving symbols and allow researchers to submit gene symbols to us directly for our consideration. We attend conferences to discuss difficult nomenclature matters and to gain community agreement. We interact with annotators of genes and proteins to provide symbols and names that accurately reflect the nature of each gene and its products. We also work with the gene nomenclature committees for other organisms, and aim to approve equivalent gene symbols for orthologous genes in human and other vertebrate species, especially mouse and rat. 
 
We will demonstrate the steps that are required to name a gene, and will show how and where the nomenclature of a particular gene is used. We will also explain the nature of our collaborations with particular journals and other databases in striving to achieve the use of a common gene nomenclature by all

Understanding Students Learning Statistics: An Activity Theory Approach

In this project I investigate university students orientations to learning statistics. The students who participated in my research were studying statistics as a compulsory component of their psychology course. My central thesis is that learning develops in the relationship between the thinking, feeling and acting person and the social, institutional and cultural contexts surrounding him or her. How students orient themselves or position themselves to learn statistics is reflected in their engagement with the learning task and their activities. These activities determine the quality of their learning and emerging knowledge. To understand student learning I draw on the powerful theories of Vygotsky (1962, 1978) and Leontev (1978, 1981). In particular, I extend and apply Leontev's construct of activity (Leontev, 1981). This suggests that individuals act in accordance with their purposes and needs which are shaped by and reflect histories and resources, both personal and cultural. My investigation consists of two studies. Study One is a qualitative exploration of the orientations to learning statistics of five older students. These students sought help with statistics at the Mathematics Learning Centre where I work. My case studies of these students are inseparable from my efforts to help them learn statistics. Study Two is grounded in Study One. The main source of data for this broader study is a survey which was completed by 279 psychology students studying statistics. In keeping with the theoretical framework, my methodology involves a holistic analysis of students and the milieu in which they act. My findings suggest relationships among students affective appraisals; their conceptions of statistics; their approaches to learning it; their evaluations and the outcomes of their actions. In Study One the relationships emerged from the students' descriptions. In Study Two I quantified the ways in which variables related to each other. Structure for the data was provided by means of correlations, factor analysis and cluster analysis. For this study I also interviewed students and teachers of statistics. My data support the systemic view of teaching and learning in context afforded by my theoretical perspective. Learning statistics involves the whole person (Semenov, 1978) and is inseparable from the arena of his or her actions. The goal of statistics education is surely to enable students to develop useful, meaningful knowledge. My findings suggest that for many of the participants in my project this goal was not being met. Most of these students reported their reluctance to learn statistics and described adopting primarily surface approaches to learning it. A range of conceptions of the subject was expressed, but for many of the students statistical meaning was evidently reduced to performance on assessment tasks. Such orientations to learning statistics may lead to it becoming irrelevant and inert information. For a few students, however, the experience of learning statistics led to self development and enhanced perspectives on the world in which we live. My project indicates the diversity of students' experiences. It raises issues as to why we teach statistics today and how the teaching and learning of statistics is being supported at university. //REFERENCES Leontev, A. N. (1978). Activity, Consciousness, and Personality. (M. J. Hall, Trans.). Englewood Cliffs, New Jersey: Prentice-Hall. Leontev, A. N. (1981). The problem of activity in psychology. In J. V. Wertsch (Ed.), The Concept of Activity in Soviet Psychology, (pp. 37-71). New York: M. E. Sharpe. Semenov, N. (1978). An empirical psychological study of thought processes in creative problem-solving from the perspective of the theory of activity. Soviet Psychology, 16(1), 3-46. Vygotsky, L. S. (1962). Thought and Language. Cambridge, Massachusetts: The M.I.T. Press. Vygotsky, L. S. (1978). Mind in Society. Cambridge, MA: Harvard University Press

COURTS Payment and Disposition of Fines and Forfeitures: Provide Funding for Local Victim Assistance Programs; Provide for Additional Charge When Filing Real Estate Documents to Fund a Feasibility Study Regarding Creation of State-Wide Computer Information System for Real Estate and Personal Property Records

The Act increases the fee for filing real and personal property instruments and adds a surcharge to criminal fines. The five-percent penalty added to criminal fines is used to fund approved victim assistance programs. Additionally, the Act imposes a five-dollar filing fee for any documents pertaining to real property to fund a study of an online computer index of real and personal property records for statewide use

Evaluation of Morphology Descriptors in CT images of the Aorta as Indicators of the Presence of Plaque

Thesis (M.A) -- Indiana University South Bend, 2009.This study compared the ability of six image descriptors, characterizing the morphology and elasticity of the descending aorta, to identify computed tomography (CT) images which contain visual indications of plaque. This thesis is based on the hypothesis that regions of plaque distort the normal lumen shape resulting in corresponding changes in the CT image. This, in turn, allows the inference of the presence of plaque by identifying deviations in the smoothness, symmetry, or circularity of the lumen border or by measurements that allow for an estimate of the elastic properties of the arterial wall. The project method included manually locating the descending aorta from a CT dataset, segmenting the lumen in each candidate slice, and computing descriptors from the resulting images. The descriptors computed are the lumen circularity, lumen centroid displacement, the area difference between the smallest enclosing circle and the lumen border, and the fractal dimension of the lumen border. In addition, the percentage expansion in lumen area and the dispersion of the lumen centroid were compared at the 0% and 40% gating in the R-R interval during the cardiac cycle. An assessment of the ability of each descriptor to identify the image slices containing potential plaque is included. The descriptors were measured against a reference set of images which were visually classified by domain experts. While each of the calculated descriptors was shown to have some merit, the circularity and the area difference between the smallest enclosing circle and the lumen border demonstrated the best individual performances in discriminating between the plaque and non-plaque images. The overall best predictive model was found by combining the strengths of the two descriptors

The augmented convention offering: the impact of destination and product images on attendees' perceived benefits

In order to benefit from the significant dual spending of meetings, incentives, conventions/conferences, exhibitions/events (MICE) attendees, destination marketers have attempted to identify key success criteria that enable increased convention and exhibition participation. Given the significant growth of the MICE industry in Asia, this study examines the role of destination and product images on Chinese attendees' perceptions of the benefits acquired through convention and exhibition participation in the regions of Macau and Hong Kong. Data were collected using an intercept survey and a systematic random sampling procedure. Structural Equation Modeling was used to test a model that integrates two strands of literature from the fields of marketing and international business: Product–Country Image (PCI) and the Augmented Service Offering (ASO). Results show that a favorable overall destination image positively impacts the image of the MICE product of the destination, which, in turn, leads to a greater perception of personal and professional benefit acquisition. Based on these findings, the authors propose the Augmented MICE Offering as a theoretical framework that can serve as a foundation for more comprehensive inquiry into the decision-making process of the MICE attendee and postattendance behavioral impacts. The study also provides important positioning and communication implications for MICE destinations