215 research outputs found

    Humans Emulating Machines: Mimicking Predictive Text Algorithms

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    There have been several pieces of technology throughout history that have significantly affected individual lives and societies. Yet, no piece of technology has been adopted as quickly by as many people and groups as ChatGPT. ChatGPT stands for Chat Generative Pre-trained Transformer; it uses a deep neural network to draw information from large datasets and generate human-like text. In this activity, we are going to engage in a (very) human process of information generation to understand the use of predictive algorithms to generate text in response to a given prompt. Then, we will analyze the consequences of such technology using our sociological perspective

    Dramaturgical History: The Roman Triumph

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    This paper examines an ancient Roman ceremony, the Triumph, and explains the effect this ritual had on Roman civilization during the Empire and the effects it still has on our historical interpretation of that society. Using Erving Goffman’s theory of dramaturgy, I compare the leaders of Rome to actors on a stage playing to an audience. In this paper, I argue that the Triumph, which was a ceremony dedicated to the creation of a “God amongst men” in a conquering general, fueled a reciprocal relationship between the actions of society and the way in which we remember the Empire. Achieving a record in historical texts was the primary goal for those who sought immortality; and to attain this they had to be uncommon in a world of commoners. Thus, the imperialistic drive of Roman leaders was not simply about war, it was about becoming a hero of Rome by stretching their empire as far as possible during their reign. The Triumph was the way in which Roman leaders would make sure that the audience, in a controlled environment, would witness this character created through war

    Syntheses of tryptamine bases

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    Web 2.0 Tools Ease Renovation Service Disruptions at The Ohio State University Libraries

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    The Thompson Library, the main library of The Ohio State University (OSU), began a major renovation in fall 2006 that required the library to close for three years. During this time, the bulk of the circulating collection and many of the personnel relocated to an interim facility. The distance imposed by the renovation created special challenges for service to patrons and communication among library faculty and staff. The OSU Libraries used blogs, podcasts, a wiki, instant messaging, and the campus course management system to reach as many of the constituents of the campus community as possible

    Alternative Solutions for Off-Campus Authentication

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    The Ohio State University Libraries created scripts to overcome the local limitations of the proxy server and to offer resource connections at the point of need. All libraries struggle to provide seamless authentication for access to paid resources, such as research databases and electronic journals. In order to obtain access to this content, the libraries must sign contracts promising to limit access to these resources to their user community. The challenge then comes in balancing the patron’s need for easy access to these rich data sources from any computer and the vendors’ desire to protect their assets

    971-54 A Non-invasive Method of Visually Assessing Renal Perfusion Using a Newly Developed Intravenous Ultrasound Contrast

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    Present methods of quantifying renal artery blood flow (RABF) in renovascular disease require either radionuclide techniques or invasive delivery of radiographic or ultrasound contrast. Perfluoropropane is a gas routinely used for intraocular injections which, when sonicated with dextrose albumin (PESDA). produces microbubbles with prolonged survival in blood. We hypothesized, therefore, that this prolonged ultrasound contrast effect could be utilized to non-invasively evaluate RABF and perfusion, Accordingly, we gave intravenous injections (IVI) of PESDA (0.06 cc/kg) to seven dogs while imaging with an external 4.5 MHz linear array transducer RABF was monitored using a Transonic Doppler probe placed around the renal artery. Contrast two-dimensional enhancement was quantified off-line. Both echo and color Doppler enhancement were also qualitatively graded as 0=no enhancement, 1+=mild, 2+=marked enhancement.Following all 36 (100%) IVI of PESDA, there was 2+ contrast ultrasound enhancement of the renal cortex. A linear correlation existed between Doppler renal artery flow and peak renal cortex videointensity follOWing IV PESDA (r=0.65, P<0.001), Color Doppler signals were also enhanced following IV PESDA, and resulted in excellent visualization of the main renal artery as well as segmental and lobar arteries. When renal artery stenosis was induced to decrease RABF to less than 10% of baseline, the segmental and lobar arteries were not visualized with color Doppler following IV PESDA, and peak renal cortex videointensity was reduced from 26 ± 10 to 15 ± 8 units (p<0.05). These data demonstrate that renal artery and cortical blood flow abnormalities can be detected using intravenous PESDA. This ultrasound contrast agent could be a new non-invasive method to detect renal artery stenosis or abnormal renal perfusion

    Design and Test of a Student Hybrid Rocket Engine with an External Carbon Fiber Composite Structure

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    The development of hybrid rockets offers excellent opportunities for the practical education of students at universities due to the high safety and relatively low complexity of the rocket propulsion system. During the German educational program Studentische Experimental-Raketen (STERN), students of the Technische Universität Braunschweig obtain the possibility to design and launch a sounding rocket with a hybrid engine. The design of the engine HYDRA 4X (HYbridDemonstrations-RaketenAntrieb) is presented, and the results of the first engine tests are discussed. The results for measured regression rates are compared to the results from the literature. Furthermore, the impact of the lightweight casing material carbon fiber-reinforced plastic (CFRP) on the hybrid engine mass and flight apogee altitude is examined for rockets with different total impulse classes (10 to 50 kNs). It is shown that the benefit of a lightweight casing material on engine mass decreases with an increasing total impulse. However, a higher gain on apogee altitude, especially for bigger rockets with a comparable high total impulse, is shown
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