Effects of Ocean Acidification on the Behavior of Two Marine Invertebrates: A Study of Predator-prey Responses of the Molluscs Conus Marmoreus and Strombus Luhuanus at Elevated-CO2 Conditions

Ocean acidification has been affecting the world’s oceans since the introduction of anthropogenic CO2 into the atmosphere during the Industrial Revolution. An increase in CO2 uptake from the atmosphere to the ocean has had a profound impact on not only the water chemistry, but marine organisms as well. Ocean acidification is known to have significant impacts on marine invertebrates in terms of calcification and reproduction; however, effects of increased CO2 on marine invertebrate behavior are vastly unknown. Marine conch gastropods have a modified muscularized foot that allows them to escape quite rapidly when faced with a predator cone shell. Utilizing the concentration of seawater CO2 (950 ppm) predicted at the end of the century (2100), both the prey gastropod (Strombus luhuanus) and its cone shell predator (Conus marmoreus) were examined to determine behavior changes in their predator-prey interaction. General boldness of S. luhuanus was heightened by elevation in CO2 by shortening the duration of time the S. luhuanus took to self-right itself by almost half. Prey behavior during predator-prey interaction was not significantly changed through ocean acidification scenarios; however, there were trends to suggest that the control prey would escape faster with use of a running behavior versus a jumping behavior, which was exhibited more often by the elevated- CO2 group. With the C. marmoreus predator, CO2 highly affected the activity level of the predator, where activity was five times that of the control. However, this increased activity did not affect the predatory success of the cone shell, but could increase the possibility of the predator happening upon the prey in the wild. Alteration of behavior of predator and prey interactions of marine invertebrates could have wide-ranging implications to the whole marine food web and entire marine ecosystem

Questioning the Promotion of Friendship in Interfaith Dialogue: Interfaith Friendship in Light of the Emphasis on Particularity in Scriptural Reasoning

‘Friendship’ is among the buzzwords such as ‘peace’, ‘tolerance’, and ‘understanding’, that are part of a shared vocabulary in the interfaith world. In discussions of the goals and benefits of interfaith dialogue, buzzwords such as ‘friendship’ are often implicitly presented as a common currency, and there is little attempt to explore how people within each religious tradition might define, shape, and describe them differently. How might, for example, Christians and Muslims differ in their opinions on the nature, possibilities, and limits of interfaith friendship? Looking at general interfaith dialogue material and at material for a specific type of interfaith dialogue, ‘Scriptural Reasoning’, I consider Christian and Muslim discourse, including promotional material for charities, speeches by religious leaders, religious documents, non-academic material (e.g. online forums, magazines), and academic material. I also look at discussions regarding the Qur’ānic verses about friendship with the religious other, which are one source of a specifically Muslim approach to the idea of interfaith friendship. My data shows that Christians tend to depict friendship as an obvious goal or benefit of interfaith dialogue, typically without explaining what interfaith friendship entails. Muslims tend to use friendship language much more sparingly in the context of interfaith dialogue, and when they do use it, it is with caveats. I note how the generic use of friendship language creates tension with the efforts to pay 'attention to the particularities of the traditions and scriptures' that the founders and practitioners of Scriptural Reasoning, among others, advocate. What questions does this analysis raise about how we frame and promote interfaith dialogue, and what other approaches to naming the goals or benefits of dialogue may be available, once attention to the particularities has made the appeal to friendship more complex?The Polonsky Foundation provided me with a full Ph.D. studentship grant via the Cambridge Inter-faith Programme at the University of Cambridge, as well as extra funding during my medical intermission. Funds for Women Graduates funded an additional academic year of study. I received financial assistance from several other funding bodies throughout the years I worked on this thesis: The Worshipful Company of Cutlers awarded me the Craythorne Scholarship; Jesus College alumnus, John Driscoll, gifted me a grant through the Jane Bourque-Driscoll Fund; and Jesus College provided me with financial assistance via various other College funds

Partnering with Medicaid to Advance and Sustain the Goals of the Child Welfare System

The purpose of this paper is to serve as a practical guide for child welfare directors who are looking to expand or sustain services for the children and families that they serve. This paper focuses on ways to partner with Medicaid to leverage opportunities to provide high quality services for children in child welfare who have behavioral health needs. It also includes information that will provide a foundational understanding of the behavioral health needs of children involved with the child welfare system, with an emphasis on describing child behavior through the lens of child development, adaptive functioning, and trauma; the services that can effectively address those behavioral and trauma related responses that can disrupt a child's skills and abilities; and, examples from states and counties who are providing these services and supports

Ocean acidification alters predator behaviour and reduces predation rate

Ocean acidification poses a range of threats to marine invertebrates; however, the emerging and likely widespread effects of rising carbon dioxide (CO₂) levels on marine invertebrate behaviour are still little understood. Here, we show that ocean acidification alters and impairs key ecological behaviours of the predatory cone snail Conus marmoreus. Projected near-future seawater CO₂ levels (975 µatm) increased activity in this coral reef molluscivore more than threefold (from less than 4 to more than 12 mm min⁻¹) and decreased the time spent buried to less than one-third when compared with the present-day control conditions (390 µatm). Despite increasing activity, elevated CO₂ reduced predation rate during predator–prey interactions with control-treated humpbacked conch, Gibberulus gibberulus gibbosus; 60% of control predators successfully captured and consumed their prey, compared with only 10% of elevated CO₂ predators. The alteration of key ecological behaviours of predatory invertebrates by near-future ocean acidification could have potentially far-reaching implications for predator–prey interactions and trophic dynamics in marine ecosystems. Combined evidence that the behaviours of both species in this predator–prey relationship are altered by elevated CO₂ suggests food web interactions and ecosystem structure will become increasingly difficult to predict as ocean acidification advances over coming decades

Internal Training Load Measures During a Competitive Season in Collegiate Women Lacrosse Athletes

International Journal of Exercise Science 13(4): 778-788, 2020. Monitoring internal load provides useful and non-invasive markers of training stress and adaptation. However, the relationship between internal load measures across a competitive window remains inconclusive and limited. The purpose of this study was to report various internal load measures, as well as their relationship, across a season in Division I women lacrosse athletes (n = 20). Ultra-short natural logarithm of the root mean square of successive differences (lnRMSSD), salivary testosterone, cortisol, the testosterone:cortisol ratio, and self-reported measures of fatigue and recovery were collected weekly for 13 weeks. Means ± SD were calculated to provide descriptive values and a repeated measure analysis of variance (ANOVA) was used to analyze changes in testosterone, cortisol, testosterone:cortisol ratio (n = 8), and lnRMSSD (n = 8) over the course of the season. Pearson correlations assessed relationships between all internal load measures. No significant time effect was observed in testosterone (p = 0.059), cortisol (p = 0.544), testosterone:cortisol ratio (p = 0.120), or lnRMSSD (p = 0.062). lnRMSSD was correlated with testosterone (r = 0.265), cortisol (r = -0.232), testosterone:cortisol ratio (r = 0.345), and fatigue (r = -0.256) (p \u3c 0.05). More research is needed to examine relationships among markers of internal stress across all phases of the training cycle. Routine monitoring may help practitioners optimize training programming to reduce injury, illness, and overtraining

Testing and Data Recovery Excavations at 41BU51, Burleson County, Texas

Prewitt and Associates, Inc. (PAI), conducted archeological testing and data recovery excavations at prehistoric site 41BU51 in Burleson County, Texas, for the Texas Department of Transportation, Environmental Affairs Division, in three phases of investigation. The first phase of testing, conducted in Spring 2003, resulted in the discovery of a single human burial as well as diagnostic artifacts ranging from the Archaic period through the Late Prehistoric period. A second phase of testing was conducted to search for additional burials in January 2004. This work resulted in the discovery of three additional burials and two isolated human bones. Finally, data recovery to remove the human remains was conducted in June 2007. This report describes all three phases of work. Analysis of the data recovered indicates that 41BU51 has a Late Archaic component that contributed many or even most of the lithic artifacts, most of the burned rocks and burned clay, some or all of the ceramic artifacts, and probably all of the human burials. Materials representing Late Prehistoric period occupations also are present, and the possibility exists that large numbers of the lithic artifacts in the upper 60 cm of the deposits were left by these occupations. A small number of artifacts predating the Late Archaic period were recovered, but these are older items recycled into younger deposits. Radiocarbon dates indicate that the Late Archaic and Late Prehistoric use of the site occurred over perhaps 3,200 to 3,600 years. The vertical distributions of the temporally sensitive artifacts and the radiocarbon dates, while hinting at some remnant time-related stratification of the cultural materials, make it clear that there has been much mixing of the deposits, presumably through faunal turbation and other forms of disturbance. With this degree of mixing, it is impossible to segregate the remains by time period or more-discrete components. Nonetheless, the archeological remains recovered indicate that 41BU51 was used intermittently over a long span of time, probably as a residential campsite, with some occupations during the Late Archaic period perhaps being for extended periods of time

Contributing Factors to Low Energy Availability in Female Athletes: A Narrative Review of Energy Availability, Training Demands, Nutrition Barriers, Body Image, and Disordered Eating

Relative Energy Deficiency in sport is experiencing remarkable popularity of late, particularly among female athletes. This condition is underpinned by low energy availability, which is a byproduct of high energy expenditure, inadequate energy intake, or a combination of the two. Several contributing factors exist that may predispose an athlete to low energy availability, and therefore a holistic and comprehensive assessment may be required to identify the root causes. The focus of the current narrative review is to discuss the primary contributing factors as well as known risk factors for low energy availability among female athletes to help practitioners increase awareness on the topic and identify future areas of focus

Eligibility Testing at 41BU75, Burleson County, Texas

Prewitt and Associates, Inc., conducted test excavations at site 41BU75 in Burleson County, Texas, to determine its eligibility for listing in the National Register of Historic Places and designation as a State Antiquities Landmark. The work was performed in 2007 under Texas Antiquities Permit No. 4525 for the Texas Department of Transportation, Environmental Affairs Division, in conjunction with a planned widening of FM 60, which will require up to 45 m of new right of way. The excavations consisted of six Gradall trenches and five 1x1-m hand-dug test units totaling 6.9 m3, all on state-owned land. Excavations yielded a small assemblage (ceramics, lithic tools, cores, and unmodified debitage) that is associated with Late Prehistoric and possibly earlier occupations. No cultural features were found. The artifacts were found throughout the sandy mantle, a mostly late Holocene colluvial depositional unit that varies greatly in thickness and is extensively bioturbated. It is recommended that 41BU75 be considered ineligible for listing in the National Register under Criterion D (36 CFR 60.4; 36 CFR 800.4, 5) or designation as a State Antiquities Landmark (13 TAC 26.2, 8) because interpretable components cannot be isolated and intact cultural features appear to be absent