63 research outputs found
2022 floating offshore wind study
No full textsubmitted to the Oregon Legislature ; by the Oregon Department of Energy ; lead author: Jason Sierman Contributing ; authors: Todd Cornett, Deanna Henry, Jessica Reichers, Adam Schultz, Rebecca Smith, and Max Woods.Title from PDF cover (viewed on September 16, 2022)."As directed in HB 3375 (2021), this report provides a summary of important information, key findings, and recommendations for future study and engagement related to the benefits and challenges of integrating up to 3 GW of floating offshore wind into Oregon's electric grid by 2030"--Page ii.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 59-61).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
The 3D-Printed Cornett: Reflections on a Decade of Experimentation and Performance
No full textReflecting on some of the pioneering research that led to the first 3D-printed cornetts (2012–14), this paper describes various ways in which 3D-printed cornetts have since informed our understanding of historical performance practices, before discussing their subsequent use in the author's own professional practice. The latest iterations of the modular 3D-printed cornett at the center of this study demonstrate some opportunities afforded by the technology for innovation in contemporary instrument design, including a version with integrated piezo pickup for performance with live electronics. Finally, the author offers some thoughts on possible future directions for the research, with some consideration of environmental impacts and potential mitigations
Economic and Political Perspectives on Integration in the Baltic Sea Region
No full textThe purpose of this paper is to address the influence of the changes in the European economic landscape in the aftermath of the break up of the iron curtain and the new dynamics of the process of European integration in the since 1989. The main focus is on the interaction between political and economic aspects of transition and reintegration in the Baltic Sea Region (BSR). In the first section a concept of spatial integration is sketched based on political and economic concepts of integration. The second part provides a brief record of political and economic integration and reintegration in the Baltic Sea Region. The central hypothesis is that the region has embarked on a path toward a coherent economic and political region with regard to political and economic affiliation. We have seen a consolidation of the old market economies within one trading block, and the former state trade economies will join the EU within two years. The old division of the Nordic countries into two different blocks concerning security policy seems also to diminish. In the same period, the cleavages between East and West with regard to security policy and economic system have disappeared. The paper aims to provide a comprehensive assessment of this process at the end of the first phase of transition at the threshold of the creation of a unified economic space in the Baltic Sea Region. The empirical section will contain information on economic flows as well as an assessment of the institutional changes within the BSR and the emerging new system of production and division of labor in the area. The final section will, based on the concept of spatial integration discuss, whether or not the BSR constitutes a functional region within the European regional system. Keywords: European economic integration - Transition and transformation in the BSR - The BSR in the European regional system ? Trade and Production in the BSR
The problem of transition and reintegration of East and Central Europe: conceptual remarks and empirical problems
No full textAbstract: Eight years after the fall of the Berlin Wall and the Iron Curtain economic and political cleavages are still visible in Europe. With respect to social and economic transition the saliency of the problems seem to increase, as the efforts to solve the problems become the common business of governments and international organizations. Regional economic and political integration have significant impacts on this process, namely through the European Union programs for restructuring and development. The purpose of this paper is to analyze the main problems in the process of transition and reintegration has to so overcome from a theoretical and conceptual point of view. The theoretical anchors political and economic theories of regional integration. After a period with declining attention, regional integration has again become topic in various parts of the world. Concepts of integration are still pivotal in Europe, partly regarding the internal development of the European Union, partly as a framework of cooperation between the EU and the rest of Europe. Based on the analysis of the concepts of Regional Economic Cooperation in Europe, the links between international economic integration and internal development are analyzed. The relationship between makcroeconomic integration and the necessary of providing instruments to cover specific areas or sector from significant adverse effects of this process is given special attention in the analysis.. This part of the analysis will focus on the needs for restructuring of existing EU-policies to meet the challenges of the next enlargements. The theoretical concepts will be used for a principal evaluation of the needs for a future regional policy for an enlarged community. The process of transition and recovery in East Europe has been challenged not only by the regained influence of traditional political groups in East Europe but also through the reluctance of the EU to open their markets in sectors where the former CMEA-countries are competitive. To avoid further drawbacks it seems necessary to establish a self sustainable economic system able to handle external (i.e. the process of enlargement) as well as internal (i.e. the structural funds) demands for restructuring. The first precondition is the opening of western markets. The second is to provide a reliable regime for development and knowledge transfer. Last but not least, the paper stress' the need to establish a reasonable framework for cooperation until the East and Central Europe can participate on equal terms in the mainstream of European Integration, and to handle the different waves of membership negotiations in a reliable way. Keywords: Reintegration, Regime for transition, Concepts of structural adaptation and integration.
Forearm training reduces the exercise pressor reflex during ischemic rhythmic handgrip
No full text Mostoufi-Moab, Sogol, Eric J. Widmaier, Jacob A. Cornett, Kristen Gray, and Lawrence I. Sinoway. Forearm training reduces the exercise pressor reflex during ischemic rhythmic handgrip. J. Appl. Physiol. 84(1): 277–283, 1998.—We examined the effects of unilateral, nondominant forearm training (4 wk) on blood pressure and forearm metabolites during ischemic and nonischemic rhythmic handgrip (30 1-s contractions/min at 25% maximal voluntary contraction). Contractions were performed by 10 subjects with the forearm enclosed in a pressurized Plexiglas tank to induce ischemic conditions. Training increased the endurance time in the nondominant arm by 102% ( protocol 1). In protocol 2, tank pressure was increased in increments of 10 mmHg/min to +50 mmHg. Training raised the positive-pressure threshold necessary to engage the pressor response. In protocol 3, handgrip was performed at +50 mmHg and venous blood samples were analyzed. Training attenuated mean arterial pressure (109 ± 5 and 98 ± 4 mmHg pre- and posttraining, respectively, P < 0.01), venous lactate (2.9 ± 0.4 and 1.8 ± 0.3 mmol/l pre- and posttraining, respectively, P < 0.01), and the pH response (7.21 ± 0.02 and 7.25 ± 0.01, pre- and posttraining, respectively, P < 0.01). However, deep venous O2 saturation was unchanged. Training increased the positive-pressure threshold for metaboreceptor engagement, reduced metabolite concentrations, and reduced mean arterial pressure during ischemic exercise. </jats:p
The Distributed Simulation of Intelligent Terrain Exploration
No full textIn this study we consider the coordinated exploration of an unfamiliar Martian landscape by a swarm of small autonomous rovers, called Swarmies, simulated in a distributed setting. With a sustainable program of return missions to and from Mars in mind, the goal of said exploration is to efficiently prospect the terrain for water meant to be gathered and then utilized in the production of rocket fuel. The rovers are tasked with relaying relevant data to a home base that is responsible for maintaining a mining schedule for an arbitrarily large group of rovers extracting water-rich regolith. For this reason, it is crucial that the participants maintain a wireless connection with one another and with the base throughout the entire process. We describe the architecture of our simulation which is composed of HLA-compliant components that are visualized via the Distributed Observer Network tool developed by NASA. Additionally, a well-known terrain exploration algorithm, which takes the constraint of a mobile ad hoc network into account, is summarized and then extended by using a trainable genetic algorithm to determine the movement of the robotic swarm at every time step of the simulation. The integration of this extended algorithm into the distributed simulation is discussed and the empirical results of a comparison between the original and extended versions are given. Our results suggest that the genetic algorithm serves as a useful aid in the simulation of coordinated exploration and provides a layer of flexibility, offered by the trainable parameters its fitness function depends upon, that allows for the introduction of new constraints while maintaining compatibility with dynamic shifts in priority
A Call To Create: Poetry As Healing and One Nurse’s Self-Discovery
No full textFlorence Nightingale’s vision for nursing has changed greatly in the past one hundred and fifty years, with nursing’s identity replaced with an emphasis on science over caring. The fast-paced, technologically sophisticated environments, designed to meet the declining health of an American public, have resulted in nurses who are being pulled away from nurse-to-patient caring acts and the reasons they felt called to become nurses. These changes have had detrimental psychological and emotional effects on nurses and are especially evident in Intensive Care nurses. Expressive writing as poetry, autoethnography, and participation in vibrant writing communities offer nurses experiences for healing, voice, and empowerment, as evidenced in the personal work of the author
Combining Fitts’s Law with Angular Size
No full textHuman-computer interaction is a growing field of computer science that combines psychological, biomechanical, and engineering design principles to help cater to a user\u27s experience. Dr. Fitts created a mathematical model in 1954 which could accurately describe the difficulty of using a particular one-dimensional user interface, which was subsequently expanded to encompass two-dimensional user interfaces. Contemporary technological advances in virtual and augmented reality are currently leading towards widespread commercial use. This experiment attempts to adapt Fitts’s model once again to accommodate the three-dimensional user interfaces required of virtual and augmented reality. My hypothesis is that an object\u27s angular size can be supplemented into Fitts’s model instead of its physical size. Participants were asked to wear a virtual reality headset and look at pairs of targets. Each pair has a different physical size, but the same angular size. The participants head movements are tracked using the virtual reality headset to determine how long it took each participant to find the center of a target. Linear regression is used to track the distance from the participants center of view to the center of a target over time. The slope of this regression lines is representative of the difficulty slope described by Fitts’s original model. The difficulty slopes are then plotted and compared to one another. Once using the targets’ physical size as the independent variable, and once using the target’s angular size as the independent variable. The coefficient of determination of the two data sets is then compared. If there exists a stronger relationship between the difficulty slope and the angular size of the target compared to the difficulty slope and the physical size of the target, then my hypothesis is true. Research is ongoing, but early preliminary test suggests that my hypothesis is correct. This means that an object\u27s angular size can be supplemented into existing models instead of its physical size. This conclusion allows software developers and user interface designers to create more easily used and more optimized user interfaces
Author response
No full textThe epigenetic inheritance of DNA methylation requires UHRF1, a histone- and DNA-binding RING E3 ubiquitin ligase that recruits DNMT1 to sites of newly replicated DNA through ubiquitylation of histone H3. UHRF1 binds DNA with selectivity towards hemi-methylated CpGs (HeDNA); however, the contribution of HeDNA sensing to UHRF1 function remains elusive. Here, we reveal that the interaction of UHRF1 with HeDNA is required for DNA methylation but is dispensable for chromatin interaction, which is governed by reciprocal positive cooperativity between the UHRF1 histone- and DNA-binding domains. HeDNA recognition activates UHRF1 ubiquitylation towards multiple lysines on the H3 tail adjacent to the UHRF1 histone-binding site. Collectively, our studies are the first demonstrations of a DNA-protein interaction and an epigenetic modification directly regulating E3 ubiquitin ligase activity. They also define an orchestrated epigenetic control mechanism involving modifications both to histones and DNA that facilitate UHRF1 chromatin targeting, H3 ubiquitylation, and DNA methylation inheritance
- …
