Discovery Tools and Local Metadata Requirements in Academic Libraries

As the second decade of the twenty-first century commences, academic librarians who work to promote collection access must not only contend with a vast array of content available in a wide range of formats, but they must also ensure that new technologies developed to accommodate user search behaviors yield satisfactory outcomes. Next generation discovery tools are designed to streamline the search process and facilitate better search results by incorporating metadata from proprietary and local collections, then by providing relevancy-ranked results. This paper investigates the implications of discovery tool use for accessing materials housed in institutional repositories and special collections, in particular, how the discovery of these materials depends on local metadata creation practices. This paper surveys current research pertaining to metadata quality issues that may put unique local collections at risk for being overlooked in meta-search relevancy rankings, and considers ways in which academic libraries can address this issue as well as areas for future research

Evaluating Rice Straw as a Substitute for Barley Straw in Inhibiting Algal Growth in Farm Ponds

Algal blooms disrupt aquatic ecosystems and are more common in lakes, ponds, and rivers during the summer months due to nutrient pollution. Livestock production can contribute increased quantities of nutrients to water bodies from runoff of manure. Commonly used mechanical and chemical control methods may have limited success because algae are small and propagate quickly. Barley (Hordeum vulgare) straw has been shown to inhibit the growth of algae as the straw decomposes aerobically in ponds. Therefore, barley represents a natural option for algal biomass control. However, the small amount of barley production in Arkansas limits the availability of barley straw as a solution to control algal blooms locally. Other cereal grain straws may produce similar inhibitory effects during decomposition. Rice (Oryza sativa) is produced in large quantities in Arkansas, making rice straw a locally sourced straw product. The objective of this research was to determine the efficacy of using rice compared to barley straw to inhibit algal growth in freshwater ponds. Data were collected from nine farm ponds, three treated with rice straw, three treated with barley straw, and three without amendment to serve as the experimental control. Dissolved oxygen, pH, nitrate-nitrogen (NO3--N), dissolved phosphorus (P), temperature, and turbidity were measured for 14 weeks from June 12 to September 17, 2018. Algal biomass was measured as chlorophyll-a concentration to evaluate treatment effectiveness over time. Dissolved oxygen was significantly influenced by treatment and time. The NO3--N concentration in ponds treated with rice straw was significantly greater than the control and barley treatment. Chlorophyll-a concentrations were variable, and there were no consistent trends through time within a treatment. More research under controlled conditions to understand impacts of abiotic conditions, microbial and algal community compositions, and mode of action of algal inhibition is required before cereal straw can be a reliable, locally sourced method of algal control in farm ponds

Stereotypes and Evaluations of People who are D/deaf

D/deaf individuals face discrimination in their daily lives, impacting their access to language, education, and life satisfaction. While there has been research about some of the stereotypes held about those who are D/deaf, the relationship between those stereotypes and prejudice and discrimination has not been explored, to my knowledge. Additionally, how D/deaf individuals are categorized has not been examined, to my knowledge. Understanding whether the hearing majority holds a distinct cognitive schema for those who are D/deaf or consider D/deaf people within a larger group of disabled people will help in creating anti-bias interventions. For example, if hearing people have a distinct cognitive schema for D/deaf individuals, then anti-bias interventions can focus on changing that schema. However, if hearing people view D/deaf individuals as part of the group of disabled people, then anti-bias interventions targeting the D/deaf cognitive schema will not be sufficient. I recruited a sample of 480 participants via MTurk. They were instructed to list and evaluate stereotypes about the D/deaf and disabled, evaluate the D/deaf and disabled, and answer questions regarding behavioral intentions toward the D/deaf and disabled. To examine the cognitive schema held towards those who are Deaf, a linear regression was conducted with evaluations D/deaf individuals as the dependent variable and stereotypes about the D/deaf and disabled as predictors. Neither predictor was significant. Results are discussed in terms of their implications for developing interventions to reduce the bias against the D/deaf

Patterns and Influences of Peer Interaction in an Integrated Cultural Center for Primary Students

A series of observations was made on students attending a cultural center during the third of three visits scheduled throughout the school year. A single observer made 444 one minute observations on kindergarten/ first, second, and third grade students participating in two learning areas. The group activity area emphasized group participation where small groups were formed consisting of students from each school and ethnic group represented. The individual activity area offered the students a choice of center activities as well as the freedom to choose with whom they wanted to work. The results indicate that interethnic interaction in the group activity area was closer to that which would be expected if interaction were proportionate to the ethnic percentages of the groups, while there was a significant deviation from the expected in the individual activity area. The results also show that the frequency of interaction increases for each grade level for all ethnic groups

On the Eve of Destruction : Courts Confronting the Climate Emergency

In the dim and smokey twilight, with only bare necessities in tow, a family rushes to escape the wildfire racing toward them. Elsewhere, a household evacuates just ahead of a category five hurricane, perhaps not for the first time. Along the coastlines, countless others are resigned to looking on as their homesites erode into the inexorably rising surf. At this moment, millions of Americans are forced to reckon with the horrors of the climate catastrophe, and the number of such people who now viscerally grasp our grim climate reality grows every day. Even the judges of this nation prove no exception to this trend. Enveloped by smoke from a recent wildfire, a Washington appellate court judge remarked to a government attorney in an atmospheric trust litigation case: “I can’t go outside. If I go outside, I’m threatening my life. I have asthma, so I have to stay inside with the windows shut—I don’t have an air conditioner. Why isn’t that affecting my life and my liberty?” Amidst a full-blown climate emergency in which the fate of Humanity rests, this Article argues that our judiciary system is equipped—and is Constitutionally duty-bound—to provide the people of our nation a remedy for the extraordinary governmental malfeasance that has brought our nation, and indeed the world, this climate calamity

A Study of Carasaurus\u27 (Dinosaura: Sauropodomorph) Torso and its Biomechanical Implications

Physical examination of the articulations between the dorsal vertebrae and the dorsal ribs of the sauropod dinosaur Camarasaurus (Upper Cretaceous, Wyoming or whatever) shows that the dorsal vertebral column has a slight double curve and the torso is more narrow and volumetrically smaller than previously reconstructed. The shape of the dorsal vertebrae series was based upon the position of the zygopophyses and centrum spacing. The dorsal ribs were placed on the vertebrae based upon the position of tuberculum/diapophysis, capitulum/parapophysis, and the lateral edge of the rib head. Comparisons between the articulated torso of Camarasaurus and extant relatives allowed for the first attempt in reconstructing the three intercostal muscle groups. The newly defined torso shape in combination with the presence of scapular facets on the ribs allowed the scapulocoracoid to be placed upon the torso at an angle of 20-30°

Nature\u27s Trust: A Legal, Political and Moral Frame for Global Warming

This essay portrays the urgency of global warming and discusses the role of environmental law in bringing about this crisis. It explains why our regulatory system ignored this problem for too long and offers a property-based perspective to frame government’s responsibility in confronting climate crisis

Causes and fitness consequences of telomere dynamics in a wild social bird

Telomeres are increasingly used as biomarkers of somatic maintenance and could conceivably play a causal role in life history trade-offs. In this thesis, I use longitudinal telomere measures from a wild population of cooperatively breeding white-browed sparrow weavers (Plocepasser mahali) to further our understanding of the causes and fitness consequences of individual variation in somatic maintenance, with particular focus on hitherto unexplored effects of the social environment. In Chapter 2, I start by investigating the key prediction of life-history theory that shortfalls in somatic maintenance in early life entail later-life costs, and find supporting evidence. Nestlings with higher within-individual rates of telomere attrition show reduced survival to the following season, even after controlling for the effects of variation in body mass. In Chapter 3, I then investigate the effects of the social and abiotic environment on nestling telomere length and attrition rates and find the first support, to my knowledge, for the key prediction that helpers in cooperatively breeding societies alleviate telomere attrition rates in growing offspring (consistent with the expectation that helper contributions to nestling feeding relax resource allocation trade-offs in offspring). In addition, I find that rainfall prior to egg-laying has a positive effect on hatchling telomere length; an effect that most likely arises via egg- or incubation-mediated maternal effects. In Chapter 4, I investigate the causes of variation in telomere attrition rates in adults, and while there are no overall differences in telomere length or long-term within-individual telomere dynamics between dominant and subordinate birds, my findings are suggestive of dominance-related differences in the short-term regulation of telomere length. In addition, and in concordance with predictions of life-history theory regarding trade-offs between somatic maintenance and reproduction, I find that annual rainfall (a proxy for reproduction-related activity during the breeding season) negatively predicts the within-individual rate of change in telomere length in adults specifically over the breeding season; there was no such relationship in the non-breeding season. Finally, in Chapter 5, I investigate the extent to which natural variation in oxidative state predicts variation in within-individual rates of change in telomere length over time. This chapter provides evidence suggestive of associations between oxidative state and telomere dynamics in a natural population, and highlights complexity in the nature of these relationships. Together my findings provide novel support for key predictions of life-history theory regarding the causes and consequences of variation in somatic maintenance, and lend strength to the view that longitudinal field studies of telomere dynamics can offer useful insights in this regard. Furthermore, my findings highlight the potential for diverse effects of the social environment on patterns of somatic maintenance, and specifically hitherto unexplored downstream effects of helping behaviour on later-life performance and ageing trajectories.BBSR