685 research outputs found
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Resource Guide for Historically Underutilized Businesses in the Austin-Round Rock Metropolitan Statistical Area
This guide is a compendium of resources available to Historically Underutilized Businesses (HUBs) in the Austin- Round Rock, Texas Metropolitan Statistical Area (MSA). The Austin-Round Rock MSA includes the Texas counties of Bastrop, Caldwell, Hays, Travis, and Williamson.
The guide is intended as a one-source, ready-reference for HUBs (including MBEs/WBEs/DBEs) who seek information about contracting with Travis County and other surrounding state and local governments. HUBs who have started or want to improve their businesses are also a target audience.
The guide is organized to provide information on the main aspects of the public contracting process: certification, bidding, insurance and bonding, financing, technical assistance and networking and business development. In so doing, it primarily profiles Austin-area governmental offices, universities and colleges, minority and women chambers of commerce and trade associations, non-profit organizations and for-profit companies.
The content of each profile, moreover, is drawn largely from their respective webpages. The profile of each listed entity generally contains a mission/description statement, program highlights/services offered costs, if any, and location and contact information. Links are included in each profile and are the main feature for viewing more detailed information. Colored tags appear at the top each entity profile to describe the type of service(s) provided.Travis County Commissioners CourtBureau of Business Researc
Forecasting Design Day Demand Using Extremal Quantile Regression
Extreme events occur rarely, making them difficult to predict. Extreme cold events strain natural gas systems to their limits. Natural gas distribution companies need to be prepared to satisfy demand on any given day that is at or warmer than an extreme cold threshold. The hypothetical day with temperature at this threshold is called the Design Day. To guarantee Design Day demand is satisfied, distribution companies need to determine the demand that is unlikely to be exceeded on the Design Day.
We approach determining this demand as an extremal quantile regression problem. We review current methods for extremal quantile regression. We implement a quantile forecast to estimate the demand that has a minimal chance of being exceeded on the design day. We show extremal quantile regression to be more reliable than direct quantile estimation. We discuss the difficult task of evaluating a probabilistic forecast on rare events.
Probabilistic forecasting is a quickly growing research topic in the field of energy forecasting. Our paper contributes to this field in three ways. First, we forecast quantiles during extreme cold events where data is sparse. Second, we forecast extremely high quantiles that have a very low probability of being exceeded. Finally, we provide a real world scenario on which to apply these techniques
Findings from the University of East Anglia's evaluation of the Ipswich/Suffolk multi-agency strategy on prostitution following the five murders in 2006
This paper provides a summary of the main findings of an evaluation of a new multi-agency Strategy set up to tackle on-street sex-working, after five prostitutes were murdered in the English county town of Ipswich. It focuses on the outcomes of the Strategyâs four objectives, including their cost-effectiveness. It also offers an insight into the lives of the women who were previously involved in street sex-working, the means by which the Strategy helped them to move towards exiting this work, and the ways in which younger people identified as being at risk of entering it might be prevented from doing so
Relationship of Global DNA Methylation with Cardiovascular Fitness and Body Composition
Global DNA Methylation (GDM), an epigenomic modification has been linked to the development of Cardiovascular Disease and its risk factors. The research focus is to identify the relationship between cardiovascular fitness measurements and epigenÂetic alterations specific to chronic disease states in adult subjects. Twenty-six adult human subjects were required to complete a physical activity and diet questionnaire. Each individual donated a small blood sample (600 ÎŒL) in order for us to analyze the Global DNA Methylation (GMD). Then, their body composition was evaluated by usÂing the Dual-Energy X-ray Absorptiometry (DEXA Scan) machinery. The Pearsonâs ârâ value was used to reveal the correlation between GDM and various variables, while t-tests were used to assess if any differences exists between high and low value groups for each variable. The Body Mass Index was significantly correlated (p-value, r value; 0.031, -.556) with GDM in females only. Individuals with high folate intake had sigÂnificantly greater GDM than the low folate group (high= 3.1+-1.2%, low=2.3+-0.7, p=0.034) as determined by the diet questionnaire. No significant correlations or difÂferences were found in males. The results conclude that as BMI increases, GDM deÂcreases in females. In attempts to further investigate the relationships between GDM and these variables, auxiliary research needs to be conducted with larger subject pools containing additional sedentary participants
Design of and Development a Diamond Fly-Cutting System
This thesis presents a conceptual design, for a single point diamond fly-cutting system.
This design is based on the performance of an existing, diamond facing lathe. The
design requirements for a precision machine tool have been considered, and a
deterministic design philosophy has been adopted. The error motions within the
diamond facing lathe are considered as effects, generated by defined causes. These
causes include geometric, kinematic and dynamic sources. Diamond turning and flycutting processes have been compared and consideration has been given to the process
influences, including variations in; diamond tool geometries, cutting forces, rotational
error motions and the process characteristics required for an optimal surface finish.
A single point diamond facing lathe has been refurbished and the dynamic error motions
of this machine tool have been analysed, using different techniques. The stiffness
properties have also been investigated, which indicate how the performance of the
machine tool has been affected over time and during the refurbishment process.
The dynamic error motions have been used to generate a set of technical specifications,
governing the design of the fly-cutting system. A design concept has been presented and
optimised. This includes a fly-cutting head, with a quick release tool holder based on a
kinematically located side locking clamp. A design concept for a dynamic workpiece
holder has also been presented, which monitors the error motions of the machine tool
and orientates the workpiece accordingly. A three pair flexure system has been
simulated to orientate the workpiece. Consideration has been given to mounting the
workpiece, feedback transducers and the design of the control system.
This thesis has provided the initial steps in the design of a single point diamond flycutting system. A further stage of development work is required to complete a detailed
design.MRe
Theatres of the Mind A Kleinian analysis of the plays of Harold Pinter
For the past fifty years, critics and scholars have been searching for a critical language to explain the work of Britainâs most successful playwright, Harold Pinter. One of the richer paths of enquiry has been to analyse the plays using a psychoanalytic vocabulary. In general terms, however, most of these studies have been restricted to using a Freudian terminology.
This study develops the psychoanalytic tradition of Pinter studies by applying the theories of one of Freudâs successors, Melanie Klein. The study has been undertaken through an analysis of play texts to develop a synthesis of Kleinian theory and Pinter. Kleinâs work develops Freudianism by exploring the primitive building blocks of the infantâs mind.
Chapter 1 introduces the thesis argument and gives a detailed introduction to Pinterâs background and his work as writer. Chapter 2 provides an examination of the fundamental elements of Kleinâs theories in the context of Freudâs own ideas. Chapter 3 uses Kleinâs theory of dreams to analyse Pinterâs earlier work and argues that the plays explore complex unconscious phantasies of relations to bad and good objects. A further contribution is made to psychoanalytic vocabulary with the introduction of the notion of the split object. Chapter 4 explores the manic- depressive aspects of The Dwarfs, whilst Chapter 5 is a close reading that argues that The Caretaker can be read through the lens of the charactersâ anxious attempt to repair âobjectsâ damaged in phantasy. Chapter 6 provides a detailed Kleinian exegesis of The Homecoming and then Pinterâs later work in considered: his memory plays, and his work after 1980, including his overtly political work and his last plays including Ashes to Ashes and Celebration. In this chapters Kleinian lexis is employed to get at the unconscious undercurrents of the plays.
Throughout, along with a specific emphasis on the charactersâ unconscious anxieties and relations to objects, the relationship between society, the historical moment and the text are considered
A more palatable alternative to oral rehydration therapy for kids
Review of: Freedman SB, Willan AR, Boutis K, et al. Effect of dilute apple juice and preferred fluids vs electrolyte maintenance solution on treatment failure among children with mild gastroenteritis: a randomized clinical trial. JAMA. 2016;315:1966-1974.Stength of recommendation: B: Based on a single, good quality randomized controlled trial.A more palatable alternative to oral rehydration therapy for kids. Parents no longer need to struggle to get their kids to drink electrolyte solutions during episodes of mild gastroenteritis; apple juice works just as well. Practice changer: Recommend that parents give half-strength apple juice to children greater than or equal to 24 months of age who are minimally dehydrated following a case of simple viral gastroenteritis. The juice reduces the need for further interventions better than oral hydration therapy
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Performance of Stainless Steel AlSi 304 Wire Reinforced Metal Matrix Composites Made Using Ultrasonic Additive Manufacturing in Bending
Ultrasonic additive manufacturing (UAM) is a solid-state additive and subtractive
manufacturing process that utilizes ultrasonic energy to produce layered metallic parts.
The process is easily extended to create advanced multi-material structures, e.g., metal
matrix composites, functionally graded metallic components, and shape memory alloys.
This research utilizes a three point bending test to compare the elastic modulus in metal
matrix composites (MMCâs) specimens consisting of stainless steel wire reinforcements
with an aluminum matrix to unreinforced test specimens; both specimens are produced by
UAM. In the MMC the volume fraction of wire is relatively low, 0.77%, yet yields an
average increase in modulus of 8.9%.Mechanical Engineerin
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The role of parents in Evolution
In this thesis, I investigated the role of parental care in evolution. Parents provide the environment in which offspring develop and therefore have a large influence on their offspring's phenotypes, and so are in prime position to influence evolutionary processes. I used an experimental approach, and focused on the burying beetle, . The burying beetle is a perfect system for this question: they exhibit elaborate biparental care which is correlated with rapid speciation in the genus.
I started with a thorough exploration of burying beetle ecology and how the guild structure and interspecific competition in local populations can shape phenotypic evolution of my focal species, . Interspecific competition shapes how the carrion niche is partitioned, which feeds back onto the evolution of body size within reducing competition. The evolution of parental care in this genus likely facilitated its adaptive radiation, as parental care is linked with body size, both within and across species.
But to what extent does the ecology shape the production and maintenance of phenotypic and genetic variation? I then use a quantitative genetic approach to show that body size and development time of shows no additive genetic variation. Evolution of these fitness related traits can only occur through maternal effects or sibling effects.
I tested this prediction by mimicking the radiation of the burying beetles by imposing my own selection on body size when parents could care for their offspring and when they could not. The presence of post-hatching parental care dramatically changed how populations responded to selection, through a combination of cooperation between parents and offspring, and cooperation between offspring.
As well as shaping the evolutionary potential of populations, an experimental change in parental care can induce new selective forces, favouring adaptive novelties for the new social environment. Larvae evolving without parental care evolved disproportionately larger mandibles when small to better adapt them to a life without care.
Much is known about the evolution of parental care across the animal kingdom, but what happens next: are the burying beetles a "one-off"? I compiled data across the arthropods comparing clades that exhibit post-hatching parental care with their sister clades and show that clades with care are more species rich. While the mechanism may not be the same as with , I discussed other potential mechanisms that may be at play in the role of parents in evolution.I was funded by the European Research Council (310785_Baldwinian_Beetles to Prof. Rebecca M. Kilner)
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