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In 2015, Congress reauthorized the latest version of the Elementary Secondary Education Act through the Every Student Succeeds Act (ESSA, 2015). In addition to the requirements for all students, this document includes provisions for English Language Learners (ELLs) and immigrant students. ESSA (2015) not only required annual assessments to ensure high level learning but also requires annual assessments for assessing ELL language acquisition. School divisions are required to monitor and report on how many ELLs made language acquisition growth and how many successfully met English language proficiency. The benefit of both ESSA (2015) and the resulting state policies is to ensure ELLs are afforded the appropriate supports to learn and achieve at the same high levels as their native English speaking peers. The purpose of this study was to identify a possible relationship between elementary school enrollment size and the academic success for ELLs in high ELL and low ELL population schools. This quantitative study examined existing data from a large suburban school district on Standards of Learning assessment achievement for ELLs over three academic years (2016-2017, 2017-2018, 2018-2019). Findings suggest total enrollment size and ELL population size impact academic achievement for ELLs. The researcher used two way ANOVA to determine if a difference exists in academic success for ELLs based on elementary school enrollment size and ELL population size. This study adds to research on conditions for high achievement for all students. / Doctor of Education / In 2015, Congress reauthorized the latest version of the Elementary Secondary Education Act through the Every Student Succeeds Act (ESSA, 2015). In addition to the requirements for all students, this document includes provisions for English Language Learners (ELLs) and immigrant students. ESSA (2015) not only required annual assessments to ensure high level learning but also requires annual assessments for assessing ELL language acquisition. The benefit of both ESSA (2015) and the resulting state policies is to ensure ELLs are afforded the appropriate supports to learn and achieve at the same high levels as their native English speaking peers. The purpose of this study is to identify a possible relationship between elementary school enrollment size and the academic success for ELLs in high ELL and low ELL population schools. This study examined existing data from a large suburban school district on Standards of Learning assessment achievement for ELLs over three academic years (2016-2017, 2017-2018, 2018-2019). These data showed academic achievement for different enrollment sizes and for different ELL population sizes. This study adds to research on conditions for high achievement for all students.

One of the most important factors that influences a stream's hydraulic and ecological health is the streambed's sediment size distribution. This distribution affects streambed stability, sediment transport rates, and flood levels by defining the roughness of the stream channel. Adverse effects on water quality and wildlife can be expected when excessive fine sediments enter a stream. Many chemicals and toxic materials are transported through streams by binding to fine sediments. Increases in fine sediments also seriously impact the survival of fish species present in the stream. Fine sediments fill tiny spaces between larger particles thereby denying fish embryos the necessary fresh water to survive. Reforestation, constructed wetlands, and slope stabilization are a few management practices typically utilized to reduce the amount of sediment entering a stream. To effectively gauge the success of these techniques, the sediment size distribution of the stream must be monitored. Gravel bed streams are typically stratified vertically, in terms of particle size, in three layers, with each layer having its own distinct grain size distribution. The top two layers of the stream bed, the pavement and subpavement, are the most significant in determining the characteristics of the stream. These top two layers are only as thick as the largest particle size contained within each layer. This vertical stratification by particle size makes it difficult to characterize the grain size distribution of the surface layer. The traditional bulk or volume sampling procedure removes a specified volume of material from the stream bed. However, if the bed exhibits vertical stratification, the volume sample will mix different populations, resulting in inaccurate sample results. To obtain accurate results for the pavement size distribution, a surface oriented sampling technique must be employed. The most common types of surface oriented sampling are grid and areal sampling. Due to limitations in the sampling techniques, grid samples typically truncate the sample at the finer grain sizes, while areal samples typically truncate the sample at the coarser grain sizes. When combined with an analysis technique, either frequency-by-number or frequency-by-weight, the sample results can be represented in terms of a cumulative grain size distribution. However, the results of different sampling and analysis procedures can lead to biased results, which are not equivalent to traditional volume sampling results. Different conversions, dependent on both the sampling and analysis technique, are employed to remove the bias from surface sample results. The topic of the present study is to determine the accuracy of sediment samples obtained by the different sampling techniques. Knowing the accuracy of a sample is imperative if the sample results are to be meaningful. Different methods are discussed for placing confidence intervals on grid sample results based on statistical distributions. The binomial distribution and its approximation with the normal distribution have been suggested for these confidence intervals in previous studies. In this study, the use of the multinomial distribution for these confidence intervals is also explored. The multinomial distribution seems to best represent the grid sampling process. Based on analyses of the different distributions, recommendations are made. Additionally, figures are given to estimate the grid sample size necessary to achieve a required accuracy for each distribution. This type of sample size determination figure is extremely useful when preparing for grid sampling in the field. Accuracy and sample size determination for areal and volume samples present difficulties not encountered with grid sampling. The variability in number of particles contained in the sample coupled with the wide range of particle sizes present make direct statistical analysis impossible. Limited studies have been reported on the necessary volume to sample for gravel deposits. The majority of these studies make recommendations based on empirical results that may not be applicable to different size distributions. Even fewer studies have been published that address the issue of areal sample size. However, using grid sample results as a basis, a technique is presented to estimate the necessary sizes for areal and volume samples. These areal and volume sample sizes are designed to match the accuracy of the original grid sample for a specified grain size percentile of interest. Obtaining grid and areal results with the same accuracy can be useful when considering hybrid samples. A hybrid sample represents a combination of grid and areal sample results that give a final grain size distribution curve that is not truncated. Laboratory experiments were performed on synthetic stream beds to test these theories. The synthetic stream beds were created using both glass beads and natural sediments. Reducing sampling errors and obtaining accurate samples in the field are also briefly discussed. Additionally, recommendations are also made for using the most efficient sampling technique to achieve the required accuracy. / Master of Science

The influence of color on size and depth perception has been explored for a century, but there is very limited research on interventions that can reduce the color illusions. This study was motivated to identify interventions and propose design guidelines for information visualization, especially where size judgment is critical. This study replicated the color size illusion and color depth illusion on an LCD monitor and it was found that yellow is the smallest and farthest color among red, yellow, green, and blue on a white background. Three types of interventions (background brightness, border color, and background grid brightness) were tested to identify the conditions that reduce the color illusions, but all of them were not statistically significant. Based on the experiment results and literature survey, design guidelines were proposed. To extend the guidelines to the bioinformatics field, design recommendations were proposed and implementation examples were illustrated. Evaluations on design implementations were evaluated by interviewing domain experts. Additionally, the relationship between the color size illusion and the color depth illusion was explored. / Master of Science

Syftet med denna studie är att undersöka hur två svenska modeföretag, Modefabriken och Klädverket, som båda påstår sig vara kroppspositiva visar detta i praktiken. Studien är genomförd inom ämnet textilt management. Studien är ur ett företagsperspektiv, men har även genererat inblickar från ett konsumentperspektiv. Data har samlats in genom primär- och sekundärdata. Studiens sekundära data har genererat ett teoretiskt ramverk som återfinns inom studier av ett västerländskt smalhetsideal och massmedias påverkan, modeindustrin och storlekar, vardagliga modeller och retuscherade modeller, kroppsideal och kroppspositivism. Studiens primära data har samlats in genom semistrukturerade intervjuer, strukturerade observationer i butik samt analys av fyra produktkategorier online. Studiens insamlade data har resulterat i en modifierad kommunikationsmodell för att undersöka hur företagen använder sig av provdockor i butik och modeller online för att visa sitt storleksspann. Judith Butlers Queerteori appliceras för att se om företagen har brutit sig loss från smalhetsidealet. Studiens resultat visar att både Modefabriken och Klädverket använder sig av provdockor i två storlekar, en normativ och en över norm. Båda dessa visar plagg med ett storleksspann från den minsta till den största storleken som företagen har. Slutsatsen av studien är att Klädverket visar sin kroppspositiva inställning i större utsträckning än Modefabriken, detta främst genom att använda sig av fler större modeller online, men även större provdockor i butik. Förslag till vidare forskning är att göra en liknande studie men ur ett konsumentperspektiv. Detta för att komplettera studiens resultat med hur konsumenter uppfattar användandet av större provdockor och modeller. / The purpose of this study is to investigate how two Swedish fashion companies, Modefabriken and Klädverket, who claims to be body positive shows that in practice. The study is conducted within the subject Textile Management. The study is from a corporate perspective but has also generated some insights from a customer perspective. The data has been collected through primary and secondary data. The studies secondary data has generated a theoretical framework which includes a western society ideal of being skinny and the impact of media, the fashion industry and sizes, everyday models and edited models, body ideals and body activism. The primary data of the study has been collected through semi structured interviews, structured observations in store as well as analysis of four different product categories online. The collected data of the study has resulted in a modified communications model to investigate how companies uses mannequins in store and models online to show their range of sizes. Judith Butlers Queer theory is applied to see if companies have broken away from the skinny ideal. The result of the study shows that both Modefabriken and Klädverket use mannequins in two sizes. In their stores and online, they use one normative size and one size above the norm. Both shows garments with a size range from the smallest to the biggest size that the companies offer. The conclusion of the study is that Klädverket shows their body positive approach in greater extent than Modefabriken, mainly by using more plus sized models online but also bigger mannequins in store.

This project describes various aspects of the breeding ecology and behaviour of the brown falcon Falco berigora, a common but poorly study Australian raptor. In particular it examines (a) the main influences on reproductive success; (b) tests predictions of theories proposed to explain the evolution and maintenance of sexual size dimorphism (RSD; females the larger sex) in raptors; and (c) investigates sex allocation patterns in the light of current sex ratio and parental investment theory. The study was conducted between July 1999 and June 2002 approximately 35 km southwest of Melbourne, at the Western Treatment Plant (WTP), Werribee (38°0’S 144°34’E) and surrounds, a total area of approximately 150 km2.¶ · In all plumage and bare part colouration of 160 free-flying falcons was described. The majority of variation in these characters could be attributed to distinct age and/or sex differences as opposed to previously described colour ‘morphs’.¶ · Nestling chronology and development is described and formulae based on wing length derived for determining nestling age. An accurate field-based test for determining nestling sex at banding age is also presented.¶ · Strong sex role differentiation was apparent during breeding; typical of falcons females performed most parental duties whilst males predominantly hunted for their brood and partner. Based on observations of marked individuals, both sexes of brown falcons aggressively defended mutual territories throughout the year, with just 10% of each sex changing territories during the entire study period. Males performed territorial displays more frequently than females, the latter rarely displaying alone.¶ · The diet of the population as a whole was very broad, but within pairs both sexes predominantly specialised on either lagomorphs, small ground prey (e.g. house mice Mus musculus), small birds, large birds or reptiles, according to availability.¶ · Reproductive parameters such as clutch size and the duration of parental care were constant across all years, however marked annual differences in brood size and the proportion of pairs breeding were evident.¶ · Age was an important influence upon reproductive success and survival, with immature birds inferior to adults in both areas. However, interannual differences were by far the most influential factor on breeding success and female survival. Heavy rain downpours were implicated as the main determinant of reproductive success and adult female mortality in a population largely devoid of predation or human interference.¶ · Female-female competition for territorial vacancies was intense; larger adult females were more likely to be recruited and once breeding fledged more offspring. In contrast, male recruitment and breeding success was unrelated to either body size or condition indices, although smaller immature males were more likely to survive to the next breeding season. This directional selection is consistent only with the predictions of the intrasexual competition hypothesis.¶ · Despite marked RSD (males c. 75% of female body mass), throughout the nestling phase female nestlings did not require greater quantities of food than their male siblings. However, female parents fed their last-hatched sons but not daughters, resulting in the complete mortality of all last-hatched female offspring in focal nests. Given last-hatched nestlings suffered markedly reduced growth rates and female, but not male, body size is important in determining recruitment patterns, the biased allocation amongst last-hatched offspring is likely to reflect differing benefits associated with investing in small members of each sex, consistent with broad-scale Trivers-Willard effects. Recruitment patterns support this, with surviving last-hatched females, in contrast to males, unable to gain recruitment into the breeding population upon their return to the study site.¶ Thus selection appears to act at the nestling, immature and adult stages to maintain RSD in the focal population. Larger females were favoured in the nestling phase, at recruitment and once breeding had greater reproductive success. In contrast, selection favoured a reduction or maintenance of immature male size as smaller birds had a greater chance of survival in the year following recruitment than their larger counterparts; thereafter male size was unimportant. Together, this directional selection favouring increased female competitive ability is consistent only with the predictions of the intrasexual competition hypothesis, which appears the most probable in explaining the maintenance and perhaps evolution of RSD in raptors.

This study investigates size-selective predation of four groups predaceous aquatic insects: adults and larvae of diving beetles (Dytiscidae), larvae of dragonflies (Odonata) and aquatic true bugs (Heteroptera) using laboratory feeding experiments and relates the results to morphometric data obtained for each predator.

Grain size distribution, porosity, and hydraulic conductivity from over 400 unlithified sediment samples were analized. The measured hydraulic conductivity values were then compared to values calculated using 20 different empirical equations commonly used to estimate hydraulic conductivity from grain size analyses. It was found that most of the hydraulic conductivity values estimated from the empirical equations correlated very poorly to the measured hydraulic conductivity values. Modifications of the empirical equations, including changes to special coefficients and statistical off sets, were made to produce modified equations that considerably improve the hydraulic conductivity estimates from grain size data for beach, dune, off shore marine, and wadi sediments. Expected hydraulic conductivity estimation errors were reduced. Correction factors were proposed for wadi sediments, taking mud percentage and the standard deviation (in phi units) into account.

Master of Science / Department of Agricultural Economics / Michael R. Langemeier / This thesis will determine if economies of size are present in production agriculture or the farming sector and if convergence or divergence is occurring. Change in the farming sector was analyzed using five-year moving averages from 1973 to 2007. Six key variables were analyzed; value of farm production, total acres, economic total expense ratio, operating profit margin ratio, asset turnover ratio, and percent of livestock income. Data from the Kansas Farm Management Association were used in this study. To be included in the study, a farm had to have five years of continuous, usable data for a five-year period between 1973 and 2007. Moving five-year averages were calculated for the farms that met this qualification. Data were sorted by value of farm production and broken down by quartiles and deciles. Trend regressions were used to calculate growth rates of the key variables and the difference between the top and bottom quartiles of the variables. Results suggested that acreage per farm is increasing, farms are doing better at covering their total economic costs, profit margin per farm has decreased, farms are utilizing their assets better, and the percent of livestock income per farm has decreased. When regressing the difference between the top and bottom quartiles to determine growth rates, it was evident that the gaps between the top and bottom quartiles of five of the six variables have widened. The differences in the percent of livestock income between farm quartiles and deciles were not significant. Convergence analysis confirmed the results of the trend regressions and suggested that divergence is evident in the Kansas farming sector. Graphical representation supports the findings of this thesis.

Master of Science / Food Science Institute / Fadi M. Aramouni / Jeffrey A. Gwirtz / In order to improve the quality of products available for consumers who require a gluten-free diet, this study examined the effects of sorghum flour composition and particle size on functionality in gluten-free batter bread. White, food-grade sorghum was milled to flour of varying extraction rates (60%, 80%, 100%), and was subsequently pin-milled at different speeds (no pin-milling, low- speed, and high-speed) to create flours of both variable composition and particle size. Two commercially-milled sorghum flour samples (AF and TV) were included in the study and subjected to the same pin-milling treatments. Characterization of each flour included measurements of flour composition, total starch content, particle size distribution, damaged starch, and water absorption. Bread characterization included measurement of specific volume, crumb properties, and crumb firmness through the use of digital imaging and texture profile analysis. Significant differences were found (p<0.05) in the composition of sorghum flours of varying extraction rate, most notably for fiber and total starch contents. Flour particle size and starch damage were significantly impacted by extraction rate and speed of pin milling (p<0.05). With the exception of the commercial flour samples, water absorption increased significantly with increasing extraction rate and speed of pin-milling speed (p<0.05). Within all treatments, breads produced from 60% extraction flour had significantly higher specific volumes, better crumb properties, and lower crumb firmness when compared to all other extractions and flour types. These measured bread characteristics were significantly impacted by flour properties, specifically particle size, starch damage, and fiber content (p<0.0001). The commercial flours studied produced breads of low specific volume, poor crumb properties, and dense textures. These results can assist millers and product developers in advancing the quality of sorghum-based gluten-free foods for the consumers that require them. Further research is necessary to better understand the extent to which particle size, and therefore starch damage, can improve sorghum-based gluten-free breads.