Velero de competición capacitado para la regata alrededor del mundo “Volvo Ocean Race.”

TIPO DE BUQUE: Velero de competición capacitado para la regata alrededor del mundo “Volvo Ocean Race.” REGLAMENTOS: Reglas de la clase: Volvo Ocean 60 rule 2000 + changes CLASIFICACIÓN: ABS Guide for Building and Classing Offshore Racing Yachts 1994 incorporating Notice #1 DESPLAZAMIENTO MÁXIMO: 15000 KG CALADO MÁXIMO: 3.75 m ESLORA MÁXIMA: 23.5 m CONSTRUCCIÓN: Casco: Materiales compuestos. Mástil: materiales compuestos sin núcleo o aluminio. INSTALACIÓN ELÉCTRICA: 24V DC con un motor auxiliar y al menos dos alternadores independientes. SISTEMA DE PROPULSIÓN: Vela, aparejo tipo Sloop. Motor propulsivo de emergencia con hélice plegable de dos palas capaz de dar 7 nudos en condiciones de mar en calma ALOJAMIENTO: para 12 tripulantes REQUERIMIENTOS: Desaladora-potabilizadora, radar, GPS, GMDSS, comunicaciones por satélite Inmarsat B y C, sistema de gobierno de emergencia, calefacción, bombas de lastre, sistema de corrección de escora mediante tanques de lastre liquido.

A new procedure for race analysis in swimming based on individual distance measurements

biomecanica de la natación

Effects of different swimming race constraints on turning movements

The aim of this study was to investigate the effects of different swimming race constraints on the evolution of turn parameters. One hundred and fifty-eight national and regional level 200-m (meters) male swimming performances were video-analyzed using the individualized-distance model in the Open Comunidad de Madrid tournament. Turn (p < .001, ES = 0.36) and underwater distances (p < .001, ES = 0.38) as well as turn velocity (p < .001, ES = 0.69) significantly dropped throughout the race, although stroke velocity and underwater velocity were maintained in the last lap of the race (p > .05). Higher expertise swimmers obtained faster average velocities and longer distances in all the turn phases (p < .001, ES = 0.59), except the approach distance. In addition, national level swimmers showed the ability to maintain most of the turn parameters throughout the race, which assisted them in improving average velocity at the end of races. Therefore, the variations in the turning movements of a swimming race were expertise-related and focused on optimizing average velocity. Turning skills should be included in the swimming race action plan.

Contribution to Load-Frequency Regulation of a Hydropower Plant with Long Tail-Race Tunnel

In this paper, a hydroelectric power plant with long tail-race tunnel has been modelled for assessing its contribution to secondary regulation reserve. Cavitation problems, caused by the discharge conduit length, are expected downstream the turbine where low pressure appears during regulation manoeuvres. Therefore, governor's gains should be selected taking into account these phenomena. On the other hand, regulation services bidden by the plant operator should fulfil TSO (Transmission System Operator) quality requirements. A methodology for tuning governor PI gains is proposed and applied to a Hydro power plant in pre-design phase in northwest area of Spain. The PI gains adjustment proposed provides a proper plant response, according to some established indexes, while avoiding cavitation phenomena.

Frequency control support of a wind-solar isolated system by a hydropower plant with long tail-race tunnel

Pumped storage hydro plants (PSHP) can provide adequate energy storage and frequency regulation capacities in isolated power systems having significant renewable energy resources. Due to its high wind and solar potential, several plans have been developed for La Palma Island in the Canary archipelago, aimed at increasing the penetration of these energy sources. In this paper, the performance of the frequency control of La Palma power system is assessed, when the demand is supplied by the available wind and solar generation with the support of a PSHP which has been predesigned for this purpose. The frequency regulation is provided exclusively by the PSHP. Due to topographic and environmental constraints, this plant has a long tail-race tunnel without a surge tank. In this configuration, the effects of pressure waves cannot be neglected and, therefore, usual recommendations for PID governor tuning provide poor performance. A PI governor tuning criterion is proposed for the hydro plant and compared with other criteria according to several performance indices. Several scenarios considering solar and wind energy penetration have been simulated to check the plant response using the proposed criterion. This tuning of the PI governor maintains La Palma system frequency within grid code requirements.

A Thing Called Race

Keynote Speaker

The Thought Leaders Roundtable Discussion about Race Relations in Missouri

https://bluetigercommons.lincolnu.edu/pli/1008/thumbnail.jpg

The incompatible interaction between Phytophthora parasitica var. nicotianae race 0 and tobacco is suppressed in transgenic plants expressing antisense lipoxygenase sequences

Nicotiana tabacum 46-8 cultivar displays an incompatible interaction with race 0 of Phytophthora parasitica var. nicotianae (Ppn), a fungal pathogen of most tobacco cultivars. At the plant level, incompatibility is characterized by the induction of lipoxygenase (LOX, EC = 1.13.11.12) activity and localized hypersensitive cell death before defense gene activation. To evaluate the involvement of LOX in the onset of plant defense, tobacco 46-8 plants were genetically engineered using full-length or partial-length antisense (AS) tobacco LOX cDNA constructs. AS expression strongly reduced elicitor- and pathogen-induced LOX activity. Eight independent AS-LOX lines were selected and assayed for their response to Ppn. After root or stem inoculation with race 0, all AS-LOX lines but one displayed a compatible phenotype whereas control transformed plants, not containing the AS-LOX cassette, showed the typical incompatible reaction. The presence of the fungus in transgenic lines was demonstrated by PCR amplification of a Ppn-specific genomic sequence. A linear relationship was found between the extent of LOX suppression and the size of the lesion caused by the fungus. The AS-LOX plants also showed enhanced susceptibility toward the compatible fungus Rhizoctonia solani. The results demonstrate the strong involvement of LOX in the establishment of incompatibility in plant–microorganism interactions, consistent with its role in the defense of host plants.

Acting White Among Black College Students: A Phenomenological Study of Social Constructions of Race

This study was a qualitative examination of Black college students' experiences with the Acting White label. In conducting this study, two gaps in literature were addressed: (1) the lack of literature on Black college students and the acting white label, and (2) lack of attention to a US racial history and current structures which allow a label such as "acting white" to exist. Thus, the purpose of this study was to call attention to the experiences of Black college students as it relates to the acting white label. Additionally, the study calls attention to social constructions that allow the acting white label to exist and to be sustained. Data was collected from 14 Black college students at a predominantly white, private, liberal arts university in the west. Based on responses from students in the study, Black college students do hear that they are acting white. Yet, their reaction to hearing the label does not cause them to underachieve academically, but does have an impact on their social actions. The ways in which Black college students in the study were labeled as acting white was based on academic pursuits, speech patterns, dress, and hobbies. Student reactions to the label ranged from ignoring the label to challenging the accuser. In regards to how the acting white label is sustained, students in the study expressed that they learned what it meant to act white or black from family interactions, social interactions and observations from family and friends, and from media sources. It was concluded that Black college students, despite reactions, do hear the label and that the label seems to be used as a means to attack Black students and their identity.

Disquieting Discretion: Race, Geography & the Colorado Death Penalty in the First Decade of the Twenty-First Century

This Article demonstrates through original statistical research that prosecutors in Colorado were more likely to seek the death penalty against minority defendants than against white defendants. Moreover, defendants in Colorado’s Eighteenth Judicial District were more likely to face a death prosecution than defendants elsewhere in the state. Our empirical analysis demonstrates that even when one controls for the differential rates at which different groups commit statutorily death-eligible murders, non-white defendants and defendants in the Eighteenth Judicial District were still more likely than others to face a death penalty prosecution. Even when the heinousness of the crime is accounted for, the race of the accused and the place of the crime are statistically significant predictors of whether prosecutors will seek the death penalty. We discuss the implications of this disparate impact on the constitutionality of Colorado’s death penalty regime, concluding that the Colorado statute does not meet the dictates of the Eighth Amendment to the Constitution.

TENDENCIA THATCHERITIS OR ENGLISHNESS REMADE: The Fictions of Julian Barnes, Hanif Kureishi and Pat Barker

Julian Barnes, Pat Barker, and Hanif Kureishi are all canonical authors whose fictions are widely believed to reflect the cultural and political state of a nation that is post-war, post-imperial and post-modern. While much has been written on how Barker’s and Kureishi’s early works in particular respond to and intervene in the presiding political narrative of the 1980s – Thatcherism – treatment of how revenants of Thatcherism have shaped these writers’ works from 1990 on has remained cursory. Thatcherism is more than an obvious historical reference point for Barker, Barnes, and Kureishi; their works demonstrate a sophisticated understanding of how Thatcher’s reworkings of the repertoires of Englishness – a representational as well as political and cultural endeavour – persist beyond her time in office. Barnes, Barker, and Kureishi seem to have reached the same conclusion as political and cultural critics: Thatcher and Thatcherism have remade not only the contemporary political and cultural landscapes but also the electorate and consequently the English themselves. Tony Blair’s conception of the New Britain proved less than satisfactory because contemporary repertoires of Englishness repeat and rework historical and not incidentally imperial formulations of England and Englishness rather than envision civic and populist formulations of renewal. Barnes’s England, England and Arthur & George confront the discourse of inevitability that has come to be attached to contemporary formulations of both political and cultural Englishness – both in terms of its predictable demise and its belated celebration. Kureishi’s The Buddha of Suburbia and “The Body” speak to an alteration that has taken place in which historical Englishness and Thatcherism have become complementary rather than contrasting discourses. What Barker’s Border Crossing and Double Vision offer against this backdrop is a subtle interrogation of how renewal itself comes to be a presiding mode of cultural reflection that absorbs revolutionary possibility.