1,167 research outputs found

    Effects of starvation on energy density of juvenile chum salmon (Oncorhynchus keta) captured in marine waters of Southeastern Alaska

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    We conducted laboratory starvation experiments on juvenile chum salmon (Oncorhynchus keta) captured in the neritic marine waters of northern Southeast Alaska in June and July 2003. Temporal changes in fish energy density (whole body energy content [WBEC], cal/g dry weight), percent moisture content, wet weight (g), length (mm), and size-related condition residuals were measured in the laboratory and were then compared to long-term field data. Laboratory water temperatures and salinities averaged 9°C and 32 psu in both months. Trends in response variables were similar for both experimental groups, although sampling intervals were limited in July because fewer fish were available (n= 54) than in June (n=101). Overall, for June (45-d experimental period, 9 intervals), WBEC, wet weight, and condition residuals decreased and percent moisture content increased, whereas fork length did not change. For July (20-d experimental period, 5 intervals), WBEC and condition residuals decreased, percent moisture content and fork length increased, and wet weight did not change. WBEC, percent moisture content, and condition residuals fell outside the norm of longterm data ranges within 10–15 days of starvation, and may be more useful than fork length and wet weight for detecting fish condition responses to suboptimal environments

    Fabrications

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    The objects that surround us tell a story of our past, and act as physical stand ins for a person, place, or experience no longer present. My work explores the significance of objects and how we use them to preserve our memories and make them tangible. Memory is ephemeral and changes over time, simultaneously growing weaker and stronger. I use clay to accentuate this relationship, visually depicting both preservation and decay. Inspired by my personal narrative, I recreate specific objects of significance by hand. This results in subtle variations of the original, much like the changes in our memory over time. Each piece becomes a fabrication of an original object, just as our memories are a fabrication of the original experience. Themes of storage, disintegration, alteration, and addition reflect the processes involved in memory formation and the effect of time on our recall. Through this process, I am exploring how much our identity is reliant on our memories, how we preserve our past in order to inform our present, and the ways in which our objects serve as characters in our narrative of self

    Reliability and Validity of Ratings of Perceived Exertion in Persons With Multiple Sclerosis

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    Objective: To test the reliability and validity of using the Borg rating of perceived exertion (RPE) scale (ratings 6e20) in persons with multiple sclerosis (PwMS). Design: Nonrandomized repeated measures. Setting: Research laboratory. Participants: Volunteer sample (N=27) comprised of 16 PwMS (10 women) and 11 age-matched persons without multiple sclerosis (MS) (6 women). Clinical measures included symptomatic fatigue, depression, and MS functional capacity. Interventions: A submaximal cycling test was performed to estimate maximal capacity. Participants then pedaled for 2 minutes at 50% and 60% of predicted maximal oxygen consumption per unit time (V̇O2), and physiological measures and RPE were obtained (week 1: response protocol). One week later, participants replicated the prescribed V̇O2 using the RPE range from week 1 (week 2: reproduction protocol). V̇O2, heart rate, and respiratory quotient were measured continuously; RPE and workload were measured every minute; and blood lactate and mean arterial pressure were measured after exercise. Main Outcome Measures: RPE, workload, V̇O2, and heart rate from week 1 to week 2. Results: PwMS had greater fatigue (P2, and heart rate were similar between groups. Both groups had an intraclass correlation coefficient \u3e.86 for RPE, workload, and V̇O2. The intraclass correlation coefficient was comparatively lower for heart rate for both groups (MS group: .72, non-MS group: .83). RPE was highly correlated with V̇O2(rZ.691, P Conclusions: Results suggest that RPE can be reliably reproduced, is valid, and may be used in exercise prescription in mildly to moderately impaired PwMS during cycling exercise

    Collection and estimation of zooplankton

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    Zooplankters are the diverse, delicate and often very beautiful assemblages of animals that drift in the waters of the world oceans. The name zooplankton is derived from the Greek: Zoon, animal; planktos, wandering. They play a key role in the marine food web by transferring the organic energy produced by the unicellular algae to higher trophic levels such as pelagic stocks. Because of their critical role as food source for larval and juvenile fish, the dynamics of zooplankton populations, their reproductive cycles, growth and survival rates are all important factors influencing recruitment of fish stocks and thereby the magnitude of fishery. Majority of them are microscopic, unicellular or multicellular forms with size ranging from a few microns to a millimeter or more. In addition to size variations, there are differences in morphological features and taxonomic position. The zooplankton plays an important role to study the faunal biodiversity of aquatic ecosystems

    Phytoplankton - collection, estimation, classification and diversity

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    In the existing sampling methodology, the interest is to estimate gear-wise, species-wise landings for the state in a month, fishing effort according to different types of fishing boats and also in terms of man hours. The analysis is carried out at CMFRI headquarters. Before the data is processed for analysis it will be ensured that the data collection is made as per the approved schedule, by checking the appropriate proforma. The responsibilities and functions of staff at the headquarters are data coding, estimation and database management. The data analysis is computerised and estimates are made using the software developed by the Fishery Resources Assessment Division of the Institute. The processed data are again counter- checked for errors. When discrepancies are detected, the estimation procedure is scrutinised in detail

    “Transfer Talk” in Talk about Writing in Progress: Two Propositions about Transfer of Learning

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    This article tracks the emergence of the concept of “transfer talk”—a concept distinct from transfer of learning—and teases out the implications of transfer talk for theories of transfer of learning. The concept of transfer talk was developed through a systematic examination of 30 writing center transcripts and is defined as “the talk through which individuals make visible their prior learning (in this case, about writing) or try to access the prior learning of someone else.” In addition to including a taxonomy of transfer talk and analysis of which types occur most often in this set of conferences, this article advances two propositions about the nature of transfer of learning: (1) transfer of learning may have an important social, even collaborative, component and (2) although meta-awareness about writing has long been recognized as valuable for transfer of learning, more automatized knowledge may play an important role as well

    Pandemic Related Housing Assistance, December 2020

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    The COVID-19 disease has resulted in a worldwide pandemic. Over 85 million worldwide confirmed cases of COVID-19 have been reported in a single year (2020) with more than 1.8 million of those cases resulting in death. The United States reported over 20 million confirmed cases in 2020 with over 300,000 deaths. This is a public health crisis that has resulted in widespread government response including event cancellations/prohibitions, stay-at-homes orders, the closure of nonessential businesses, and more. Governor Mike DeWine of Ohio declared a state of emergency on 3/9/2020 immediately following the first case reported in the state. On 3/13/2020, President Donald Trump declared the viral disease a national emergency. On 3/27/2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law. This is a $2.2 trillion economic stimulus bill that is meant to respond to the social and economic upheaval the disease has caused. This is the largest stimulus package passed in the United States to date. The pandemic has damaged not only health systems, but social and economic systems as well. One effect of COVID-19 has been mass housing instability, which is predominantly due to evictions. Many people have lost their jobs due to COVID-19. This leaves them with little income to pay their bills, including rent/mortgage and utilities, forcing them to face consequences such as eviction or utility shutoffs. As a result of these housing issues, federal, state, and local governments have all passed legislation to prevent housing instability. The following timeline displays how the Federal Government, the State of Ohio, Cuyahoga County, and the City of Cleveland responded to housing issues during the COVID-19 pandemic

    Pandemic-Related Business Assistance, February 2021

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    The pandemic has caused an unprecedented increase in unemployment, the closing or suspension of operations for many businesses, a drastic reduction in the capacity to produce many goods and services, and a significant reduction of disposable household income. To assist with these economic emergencies, federal, state, and local governments have passed legislation to aid households and businesses, including some programs for nonprofits. This brief groups the actions of all levels of government into four categories: general business support, small business support, industry-specific support, and unemployment benefits for individuals. The subsequent sections offer a summary of each program and a link to their full description. The timeline covers a period of time from March to December of 2020 and shows which programs continue in 2021. This research brief will be updated with the next package of new and existing programs as they extend into 2021

    Calling All Students? Enrollment in Community-Engaged Learning Courses at a Marianist University

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    ‘Community’ is a pervasive concept at the University of Dayton, a Catholic, Marianist institution in Dayton, Ohio. As such, it was unknown how students who enrolled in community engaged learning (CEL) courses were different from their peers in demographic characteristics, previous experiential learning, and views of community engagement. Findings can inform CEL recruitment as well as evaluation of CEL outcomes, especially at institutions with a similar values orientation. This mixed-methods study indicates that among four semesters of students in three selected CEL courses, few differences were found with students in non-CEL control groups. One significant difference found was in racial identity: fewer students with non-White racial identities enrolled in CEL courses than control groups. These findings illustrate the need for diversity and inclusion strategies to be applied to student recruitment for CEL courses
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