196,085 research outputs found
Changes in macular ganglion cell and retinal nerve fiber layer thickness during recovery from infection with the B.1.1.7 variant of SARS-CoV-2 in previously hospitalized patients with COVID-19 bilateral pneumonia
No full textCoronavirus disease 2019 (COVID-19) has been associated with various systemic complications, including potential impacts on ocular health. Recent studies have suggested that COVID-19 may lead to changes in retinal structure, particularly in the neuroretinal and retinal nerve fiber layers (RNFL). This study aimed to examine changes in neuroretinal and RNFL of the optic dics based on optical coherence tomography (OCT) in patients hospitalized due to COVID-19 bilateral pneumonia at 2 time points after discharge. A prospective study involved 49 patients with COVID-19 bilateral pneumonia hospitalized between March and May 2021. Baseline ocular evaluations were conducted 2 months post-discharge, with follow-up examinations 6 months later. Retinal parameters, including RNFL and ganglion cell layers (GCL), were assessed. Control group of healthy individuals also underwent similar ophthalmic examinations for comparative analysis. We found that the average thickness of the retinal nerve fiber layer (RNFL) of the optic disc was lower in the COVID-19 group than in controls (p≤0.01). The ganglion cell layer (GCL) was thicker in the inner inferior ring (p=0.008) but thinner in the outer superior, outer nasal, and outer inferior rings (p=0.044, p<0.01, and p<0.01, respectively). OCT parameters were assessed according to sex. At 6 months, the RNFL of the inner inferior and outer temporal rings was thinner in women than in men (p=0.022 and p=0.020, respectively). The GCL of the inner temporal and outer temporal rings was also thinner in women than in men (p=0.004 and p=0.005, respectively). In conclusion: at 6-month follow-up, RNFL and GCL thickness was significantly lower in some areas of the retina compared with baseline. COVID-19 seems to cause changes in the macular retina, highlighting the need for ophthalmologic screening of patients with a history of SARS-CoV-2 infection
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Weighting Waiting: Evaluating the Perception of In-Vehicle Travel Time Under Moving and Stopped Conditions
No full textThis paper describes experiments comparing traditional computer administered stated preference with
virtual experience stated preference to ascertain how people value stopped delay compared with stop-and-
go or freeflow traffic. The virtual experience stated preference experiments were conducted using a wrap
around driving simulator. The two methods produced two different results, with the traditional computer
assisted stated preference suggesting that ramp delay is 1.6 – 1.7 times more onerous than freeway time,
while the driving simulator based virtual experience stated preference suggested that freeway delay is more
onerous than ramp delay. Several reasons are hypothesized to explain the differences, including recency,
simultaneous versus sequential comparison, awareness of public opinion, the intensity of the stop-and-go
traffic, and the fact that driving in the real-world is a goal directed activity. However without further
research, which, if any, of these will eventually prove to be the reason is unclear. What is clear is that a
comparison of the computer administered stated preference with virtual experience stated preference
produces different results, even though both procedures strive to find the same answers in nominally
identical sets of conditions. Because people experience the world subjectively, and make decisions based
on those subjective experiences, future research should be aimed at better understanding the differences
between these subjective methodologies.ITS InstituteLevinson, David M; Harder, Kathleen; Bloomfield, John; Winiarczyk, Kasia. (2004). Weighting Waiting: Evaluating the Perception of In-Vehicle Travel Time Under Moving and Stopped Conditions. Retrieved from the University Digital Conservancy, http://dx.doi.org/10.3141/1898-08
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Economic crisis versus control and managerial functions of cities in age of globalization
No full textW niniejszym opracowaniu autorzy starają się odpowiedzieć na pytanie, jak zmieni się pozycja miasta w momencie głębokiego kryzysu sektora dominującego w danym ośrodku. Kryzys jest tutaj rozumiany jako spadek wyników finansowych firm danego sektora, przez który korporacje należące do niego istotnie tracą na znaczeniu. W tym celu utworzono syntetyczny wskaźnik kompleksowego rozwoju sektorowego miast (KRS), który ukazuje pozycję miasta względem wartości zlokalizowanych w nim poszczególnych siedzib zarządów według sektorów oraz stabilność ich pozycji po usunięciu najważniejszego sektora. W ten sposób otrzymano informację nie tylko o potencjale ośrodka, ale również o jego kompleksowym rozwoju lub też silnej specjalizacji. Zwrócono uwagę, iż niemal w połowie miast dominował sektor finansowy (financials) oraz surowcowy (materials). Zauważono zróżnicowanie regionalne dominujących sektorów. Sektor produktów konsumenckich (consumerstaples) i surowcowy (materials) przeważał w Ameryce Północnej, a informatyczny (informationtechnology) i finansowy (financials) w Europie. Z kolei w Azji wystąpiło większe zróżnicowanie dominującego sektora.In this paper, the authors attempt to determine the extent and manner of changes in the position of a city during a deep crisis of a sector dominant in this city/region. Crisis is understood here as a deterioration in the financial performance of companies of a sector when, as a result of the crisis, corporations from the sector suffer a significant decline. To achieve the research objective, a synthetic indicator of comprehensive sectoral development of cities is developed. The indicator illustrates the position of a city removal of the dominant sector. With this approach, information can be generated about the potential of the centre and about its comprehensive development, or strong specialisation. It was noticed that in nearly 50% of the cities, the financial and material sectors dominated. Regional variation of the dominant sector was observed. Consumer staples and materials prevailed in North America, while the IT and financial sectors were dominant in Europe. Greater diversification of the dominant sector was reported for Asia. in terms of the value of corporate headquarters located in the city, by sector, and their stability after thePiotr Raźniak: [email protected]ławomir Dorocki: [email protected] Winiarczyk-Raźniak: araź[email protected] Piotr Raźniak - Instytut Geografii, Uniwersytet Pedagogiczny w Krakowiedr Sławomir Dorocki - Instytut Geografii, Uniwersytet Pedagogiczny w Krakowiedr Anna Winiarczyk-Raźniak - Instytut Geografii, Uniwersytet Pedagogiczny w KrakowieAlderson A. S., Beckfield J., 2004, Power and position in the world city system, ,,American Journal of Sociology”, no. 109.Beaverstock J. V., Boardwell J. 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Theopompus' Meropis: History of Research and an Attempt at Interpretation
No full textThe article contains a new Polish translation of the fragment of Theopompus' Meropis preserved by Aelian. The translation is accompanied by notes pointing out similar ideas in other ancient writers. After discussing various earlier proposals of interpretation, the author concludes that Theopompus' myth should be considered from three perspectives: as an interesting story meant to fascinate the reader; as a polemic against Plato, parodying motifs found in his dialogues; and as an allegory presenting human fate in the spirit of archaic pessimism
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
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