Evaluating The Effectiveness Of Training System Approaches For Highly Complex Flight Training

This research investigates the Training Effectiveness of a low-cost, PC-based training system when compared with two modes (motion and no motion) of a cab training system with large screen for various aviation flying tasks. While much research on this topic has been done in the past, advances in technology have significantly altered what is considered a low-cost simulator. The technology advances have in effect increased the ability of a low-cost simulator to deliver desired experiences to the user. These simulators often are nothing more than PC training system, with only notional representations of the actual aircraft. This research considers the use of such training systems in training for a highly complex and dynamic task situation, that task being a search and rescue mission. A search and rescue mission is far more complex task than those studied for possible low-cost simulation substitution in the past. To address that aspect, one mode of the cab involves motion in two degrees of freedom. The results of this research advances the body of literature on the capability of low-cost simulation to deliver the experiences necessary to learn highly complex tasks associated with search and rescue as well as further clarify the extent to which a motion platform aides in flight training. This research utilizes available platforms provided by the US Army Research, Development and Engineering Command Simulation and Training Technology Center. Additionally, all the participants in the research are in training to be helicopter pilots. Participants were randomly assigned to one of three training configurations: a) Cab with motion turned ON, b) Cab with motion turned OFF and c) PC-based simulator. Training effectiveness is evaluated using measures for learning, task performance, and human factors. Statistically significant results are shown for the Cab with Motion and the Cab with No Motion configurations

CAD-integrierte Isogeometrische Analyse und Entwurf leichter Tragwerke

Isogeometric methods are extended for the parametric design process of complex lightweight structures. Three novel methods for the coupling of different structural elements are proposed: rotational coupling, implicit geometry description, and frictionless sliding contact. Moreover, the necessary steps for the integration of the numerical analysis, including pre- and post-processing, in CAD are investigated. It is possible to base several different analyses on each other in order to parametrically represent a construction process with multiple steps.Die isogeometrischen Methoden werden zur Anwendung im parametrischen Entwurfsprozess von komplexen Leichtbaustrukturen erweitert. Hierzu werden drei neue Methoden zur Kopplung unterschiedlicher Strukturelemente vorgeschlagen: Rotationskopplung, implizite Geometriebeschreibung und reibungsfreier Gleitkontakt. Ferner werden die nötigen Schritte zur Einbindung von Pre- und Postprocessing für numerische Simulationen in CAD untersucht. Mehrere unterschiedliche Analysen können auf einander folgen und werden verlinkt, um den Aufbauprozess in mehreren Schritten vollparametrisch abzubilden

Unbased calculus for functors to chain complexes

Recently, the Johnson-McCarthy discrete calculus for homotopy functors was extended to include functors from an unbased simplicial model category to spectra. This paper completes the constructions needed to ensure that there exists a discrete calculus tower for functors from an unbased simplicial model category to chain complexes over a fixed commutative ring. Much of the construction of the Taylor tower for functors to spectra carries over to this context. However, one of the essential steps in the construction requires proving that a particular functor is part of a cotriple. For this, one needs to prove that certain identities involving homotopy limits hold up to isomorphism, rather than just up to weak equivalence. As the target category of chain complexes is not a simplicial model category, the arguments for functors to spectra need to be adjusted for chain complexes. In this paper, we take advantage of the fact that we can construct an explicit model for iterated fibers, and prove that the functor is a cotriple directly. We use related ideas to provide concrete infinite deloopings of the first terms in the resulting Taylor towers when evaluated at the initial object in the source category.Comment: 20 page

Iron Nutrition, Oxidative Stress, and Pathogen Defense

Adaptation is a challenge that plants have to undergo in order to survive in difficult environments. Nutrient deficiency, stress, and microorganism attack are abiotic and biotic factors that frequently impair plant wellness, which is reflected by low crop yield and quality. Poor crops in turn affect human nutrition. To solve these problems, it is necessary to understand the molecular and physiological mechanisms of nutrient uptake and adaptation to stress. With this knowledge, we may have the possibility to generate new plants, which offer better yield due to their better health. This chapter summarizes and compares iron uptake and assimilation as well as pathogen responses in plants and humans. We also discuss novel approaches for improving crops in the context of human food quality

The Effect of Deltamethrin-Treated Net Fencing Around Cattle Enclosures on Outdoor-biting Mosquitoes in Kumasi, Ghana.

Classic vector control strategies target mosquitoes indoors as the main transmitters of malaria are indoor-biting and -resting mosquitoes. However, the intensive use of insecticide-treated bed-nets (ITNs) and indoor residual spraying have put selective pressure on mosquitoes to adapt in order to obtain human blood meals. Thus, early-evening and outdoor vector activity is becoming an increasing concern. This study assessed the effect of a deltamethrin-treated net (100 mg/m(2)) attached to a one-meter high fence around outdoor cattle enclosures on the number of mosquitoes landing on humans. Mosquitoes were collected from four cattle enclosures: Pen A - with cattle and no net; B - with cattle and protected by an untreated net; C - with cattle and protected by a deltamethrin-treated net; D - no cattle and no net. A total of 3217 culicines and 1017 anophelines were collected, of which 388 were Anopheles gambiae and 629 An. ziemanni. In the absence of cattle nearly 3 times more An. gambiae (p<0.0001) landed on humans. The deltamethrin-treated net significantly reduced (nearly three-fold, p<0.0001) culicine landings inside enclosures. The sporozoite rate of the zoophilic An. ziemanni, known to be a secondary malaria vector, was as high as that of the most competent vector An. gambiae; raising the potential of zoophilic species as secondary malaria vectors. After deployment of the ITNs a deltamethrin persistence of 9 months was observed despite exposure to African weather conditions. The outdoor use of ITNs resulted in a significant reduction of host-seeking culicines inside enclosures. Further studies investigating the effectiveness and spatial repellence of ITNs around other outdoor sites, such as bars and cooking areas, as well as their direct effect on vector-borne disease transmission are needed to evaluate its potential as an appropriate outdoor vector control tool for rural Africa

A new neotropical species of Monohelea kieffer from Uruguay (Diptera: ceratopogonidae)

A new species of Monohelea Kieffer, M. uruguayensis, is described and illustrated from a male specimen from Uruguay.Facultad de Ciencias Naturales y Muse

The Reverse Side of Tourism in the Craftsmanship of “Com-Verse”

The general objective of the present research is to propose flags of the Reverse side of Tourism in the Craftsmanship of “com-verse”. It is noteworthy that the proposal Reverse side of Tourism deals with the intention to consider the underlying plot of Tourism understood as Tourism-Weave-Ecosystem, arising from transdisciplinary propositions, guided by assumptions of contemporary science, ecosystem and complex, being in constant movement and reinvention. Craftsmanship corresponds to the proposal of production oriented by craftsmanship. This perspective is marked by a mode of production with some singularities, linked to the idea of careful and personalized production, using existing resources, with a close link between producers and consumers, and without a close link with production technologies. The proposal of this text is related to the production of “com-versations” with residents of Torres/RS, methodologically oriented by the confluence of the Epistemology of Journalism and the Ontology of Conversation, by Maturana (1988), in addition to the methodological strategy Cartography of Knowledge (Baptista, 2014), which also guides the development of the research. The theoretical-conceptual tracks are composed of the understanding of complex Science, holistic and ecosystemic, with authors such as Capra (1997; 2020), Morin (2005), Crema (1989), Santos (2003), Deleuze and Guatarri (1995). Regarding the universe of knowledge in Communication, Medina (2006), Marcondes Filho (2008) and Lima (2009) stand out; in relation to the universe of knowledge in Tourism, the authors: Beni and Moesch (2017), Gastal (2002), Yázigi (2001) and Baptista (2019; 2020a; 2020b). The idea of Craftsmanship is guided, mainly, by the understanding of “producing to live” (Santos, 2002). In association with the “com-versations”, it proposes a reflection on the production of knowledge and practices, in this case, tourism. Also, as a result, the importance of “com-versaitions” places and subjects for the development of Tourism guided by ecosystem responsibility, considering its characteristic plot and (re)cognizing its reverse side as potentiality, stands out.   Bilingual Publication: The original version in Portugues is available in the PDF file

JORNALISMO LITERÁRIO AVANÇADO E NARRATIVAS ARTESÃS: sinalizadores para a pesquisa em Turismo

The present text has the purpose of studying the proposition of entanglement of the Advanced Literary Journalism (ALJ) with the production of “artisans’ narratives”, having as purpose to propose signs for research in Tourism. The article presents the concept of the ALJ and the comprehension of Tourism, as Ecosystemic-Path of Deterritorialization. The methodological aspects are composed by the Cartography of Knowledge. Artisans narratives correspond to the field of research, with relates of life stories from street artisans, entangled with personal records from the diary of research. The production allows thinking on ALJ and the artisans narratives as fields of potentialities, for the upcoming of researches that comprehend Tourism and its transversalities, in its complexity.El presente texto tiene como propósito estudiar la propuesta de enredo del Periodismo Literario Avanzado (ALJ) con la producción de “narrativas de artesanos”, teniendo como propósito proponer signos para la investigación en Turismo. El artículo presenta el concepto de ALJ y la comprensión del Turismo, como Camino Ecosistémico de Desterritorialización. Los aspectos metodológicos están compuestos por la Cartografía del Conocimiento. Las narrativas de los artesanos corresponden al campo de la investigación, con relatos de historias de vida de artesanos callejeros, entrelazados con registros personales del diario de investigación. La producción permite pensar en ALJ y las narrativas de los artesanos como campos de potencialidades, para el surgimiento de investigaciones que comprendan el Turismo y sus transversalidades, en su complejidad.O presente texto tem como objeto de estudo a proposição de entrelaçamento do Jornalismo Literário Avançado (JLA) com a produção de ‘narrativas artesãs’, tendo como objetivo propor sinalizadores para a pesquisa em Turismo. O artigo apresenta o conceito de JLA e a compreensão de Turismo, como Trama-Ecossistêmica de Desterritorialização. Os aspectos metodológicos são compostos pela Cartografia de Saberes. Narrativas artesãs correspondem ao campo de pesquisa, com relatos de histórias de vida de artesãos de rua, entrelaçados com registros pessoais de diário de pesquisa. A produção permite pensar no JLA e as narrativas artesãs como campos de potencialidades, para a brotação de pesquisas que compreendam o Turismo e suas transversalidades, em sua complexidade