New parametrization method for dissipative particle dynamics

We introduce an improved method of parameterizing the Groot-Warren version of Dissipative Particle Dynamics (DPD) by exploiting a correspondence between DPD and Scatchard-Hildebrand regular solution theory. The new parameterization scheme widens the realm of applicability of DPD by first removing the restriction of equal repulsive interactions between like beads, and second, by relating all conservative interactions between beads directly to cohesive energy densities. We establish the correspondence by deriving an expression for the Helmoltz free energy of mixing obtaining a heat of mixing which is exactly the same form as that for a regular mixture (quadratic in the volume fraction) and an entropy of mixing which reduces to the ideal entropy of mixing for equal molar volumes. We equate the conservative interaction parameters in the DPD force law to the cohesive energy densities of the pure fluids providing an alternative method of calculating the self-interaction parameters as well as a route to the cross-interaction parameter. We validate the new parameterization by modelling the binary system: SnI4/SiCl4, which displays liquid-liquid coexistence below an upper critical solution temperature around 140°C. A series of DPD simulations were conducted at a set of temperatures ranging from 0°C to above the experimental upper critical solution temperature using conservative parameters based on extrapolated experimental data. These simulations can be regarded as being equivalent to a quench from a high temperature to a lower one at constant volume. Our simulations recover the expected phase behaviour ranging from solid-liquid coexistence to liquid-liquid co-existence and eventually leading to a homogeneous single phase system. The results yield a binodal curve in close agreement with one predicted using regular solution theory, but, significantly, in closer agreement with actual solubility measurements

A cultural, scientific and technical study of the Durham lead cloth seal assemblage.

This thesis is an integrated and interdisciplinary study of 275 lead cloth seals dated from the mid-fourteenth to the early-nineteenth centuries. These recently discovered objects, recovered from a single submerged river-bed site located in the North-East of England, were once linked to the trade, industrial regulation and taxation of commercially produced cloth. They are presented here, catalogued and illustrated. These objects represent the largest assemblage of such material outside London and are of crucial significance for understanding the cloth trade in the late- and post-medieval period. Due to the unusual deposition conditions from which the objects were recovered, rare scraps of textiles have survived in many of the cloth seals. A range of scientific and analytical analyses was undertaken on three cloth seals containing textiles revealing important information. For the first time in the UK, ultra-high performance liquid chromatography (performed at The Centre for Textile Conservation and Technical Art History, Glasgow University) was successfully used to extract colourants related to dyes from textile fragments preserved in lead cloth seals. This significant new information provides new insights into textile availability, trade and the consumption of cloth, mordants and dyestuffs in the late-sixteenth to early-nineteenth century. Evidence from the cloth seals is combined with other documentary, cartographic and archaeological sources of evidence to produce a synthesis providing new understanding of the cloth trade in Durham in the late- and post-medieval periods. The research generated by this thesis has demonstrated not just the scale and extent of textile production in the City of Durham, but has also revealed evidence of hitherto unknown English and European trade routes

Comagmatic Evolution of the Boulder and Pioneer Batholiths of Southwest Montana

The tectonic region that encompasses Southwestern Montana is a petrologically complex area containing several batholiths and thrust faults, underlined by Precambrian basement rock and capped by sedimentary rocks. Intrusive volcanism of Southwest Montana best represented by the Pioneer and Boulder batholiths is a product of the eastward subduction of the Farallon Plate underneath the North American Plate during the Mesozoic time. Geochemical modeling made evident that the Pioneer and Boulder batholiths have a comagmatic relationship. This conclusion is derived from variation, spider and REE diagrams along with petrographic and geochemical models. The intrusion of these batholiths is likely related to the emplacement of a detached portion of the Idaho batholith known as the Sapphire block. Future models that are outside of the scope of this research must consider the evidence proposed in this document to produce an overarching model for the intrusion of the Pioneer and Boulder batholiths in the incredibly dynamic tectonic setting of the Mesozoic

POST-PROGRAM ENGLISH LANGUAGE LEARNERS: SUCCESSFUL LEARNERS OR STRUGGLING LEARNERS?

As an educator in the field of English Language Development, I have chosen to explore the experience of four participants that have exited their ELL program within the last 1 - 2 years in Lincoln Public Schools. I wanted to capture the first-hand experience of secondary students by exploring where they are finding successes since being formally considered proficient in English and where they are struggling. I interviewed these students and explored their academic world as well as the social world within the school setting. At the conclusion of the study, I found that students are academically achieving success in the area of English Language Arts, while struggling in the area of mathematics. Students also are finding success socially. In the conclusion of this study, I will recommend ways to support mathematics for students as well as ways to combat segregation in the school. Advisor: Jenelle Reeve

POST-PROGRAM ENGLISH LANGUAGE LEARNERS: SUCCESSFUL LEARNERS OR STRUGGLING LEARNERS?

As an educator in the field of English Language Development, I have chosen to explore the experience of four participants that have exited their ELL program within the last 1 - 2 years in Lincoln Public Schools. I wanted to capture the first-hand experience of secondary students by exploring where they are finding successes since being formally considered proficient in English and where they are struggling. I interviewed these students and explored their academic world as well as the social world within the school setting. At the conclusion of the study, I found that students are academically achieving success in the area of English Language Arts, while struggling in the area of mathematics. Students also are finding success socially. In the conclusion of this study, I will recommend ways to support mathematics for students as well as ways to combat segregation in the school. Advisor: Jenelle Reeve

Biodiversity and Phenology of the Epibenthic Macroinvertebrate Fauna in a First Order Mississippi Stream

I used Hester-Dendy multiplate samplers and stick and leaf samples to collect the aquatic insects of Granny Creek, a first-order perennial stream in southern Mississippi, on twelve sampling dates from March 2014 to June 2015. The dominant insect/invertebrate group in Granny Creek was the dipteran family Chironomidae. Forty-two distinct taxa of chironomid larvae were collected over the duration of my study. Two of the dominant chironomid subfamilies in my samples, the Orthocladiinae and the Chironominae, displayed a phenological pattern in which the Orthocladiinae were more prevalent, both in terms of number of species and in abundance of individuals, in the cooler months of the year. Conversely, the Chironominae was the dominant subfamily in my collections in the summer months. Other aquatic insect groups were also present in my samples, including seven species of stoneflies, six species of mayflies, six species of caddisflies, eleven species of beetles, five species of dragonflies, one damselfly species and two species of megalopterans, including the hellgrammite, Corydalus cornutus. All of the stoneflies collected were members of the family Perlidae; as later instars perlids are predators on aquatic insects. The stonefly species Perlesta placida, displayed an extended diapause, with nymphs present in the March and June 2014 collections, ensuring absence from samples from July 2014 through January 2015, and re-appearance in the February and March 2015 collections. The beetle family Elmidae was well represented in Granny Creek. Nine genera of elmids have been collected from Florida, seven of which had representatives in Granny Creek

Sandspit Brewing Co.

For this project, I created a fictional local brewery called Sandspit Brewing Co. and designed the necessary branding for this company to function. To begin, I created a main logo as well as brand guidelines, including a color palette, secondary logos, graphics, etc. Using what I come up with in terms of brand guidelines, I will design a label for two beer cans and will design additional assets as well. These will include coasters, stickers, and a website home/landing page

Wellsville City Trails Master Plan

Wellsville City is a small, rural community seeking to provide a high quality of life for its citizens. A valuable amenity to accomplish this goal is a trail system, as part of a regional greenway network. Greenways are interconnected linkages between community hubs or open spaces, destinations, parks, neighborhoods and public lands. Trails are a part of greenways, allowing recreational access through the corridors connecting these community hubs. The citizens of Wellsville desire the benefits that are provided by a trails or greenway system. This document is the Wellsville City Trails Master Plan. Its purpose is to provide information on the greenway and trails system planning and public input process for Wellsville City, and to provide future direction for trail planning in Wellsville City. Specifically, the plan outlines the purpose and benefits of trail planning, as well as the greenway planning framework used for Wellsville City trail planning. The plan also documents the public trail planning process, from the initial public desire for trails to the collecting of public input on Wellsville City trails. This includes public workshop comments on trail preferences and Wellsville City survey data and comments. The plan provides the final Wellsville City Conceptual Trails Plan, with a description of trail types and recommendations for future trail planning and implementation. A trails system and greenway network is an important component of community development. It provides a tool to obtain a vital economy, a high quality of life for citizens, and preservation of a community\u27s rural and open space qualities. The Wellsville City Trails Master Plan provides a beginning step for trail and greenway planning in Wellsville City

Developing image analysis methods for digital pathology

The potential to use quantitative image analysis and artificial intelligence is one of the driving forces behind digital pathology. However, despite novel image analysis methods for pathology being described across many publications, few become widely adopted and many are not applied in more than a single study. The explanation is often straightforward: software implementing the method is simply not available, or is too complex, incomplete, or dataset‐dependent for others to use. The result is a disconnect between what seems already possible in digital pathology based upon the literature, and what actually is possible for anyone wishing to apply it using currently available software. This review begins by introducing the main approaches and techniques involved in analysing pathology images. I then examine the practical challenges inherent in taking algorithms beyond proof‐of‐concept, from both a user and developer perspective. I describe the need for a collaborative and multidisciplinary approach to developing and validating meaningful new algorithms, and argue that openness, implementation, and usability deserve more attention among digital pathology researchers. The review ends with a discussion about how digital pathology could benefit from interacting with and learning from the wider bioimage analysis community, particularly with regard to sharing data, software, and ideas. © 2022 The Author. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland