System engineering study of electrodynamic tether as a spaceborne generator and radiator of electromagnetic waves in the ULF/ELF frequency band

The transmission and generation by orbiting tethered satellite systems of information carrying electromagnetic waves in the ULF/ELF frequency band to the Earth at suitably high signal intensities was examined and the system maintaining these intensities in their orbits for long periods of time without excessive onboard power requirements was investigated. The injection quantity power into electromagnetic waves as a function of system parameters such as tether length and orbital height was estimated. The basic equations needed to evaluate alternataing current tethered systems for external energy requirements are presented. The energy equations to tethered systems with various lengths, tether resistances, and radiation resistances, operating at different current values are applied. Radiation resistance as a function of tether length and orbital height is discussed. It is found that ULF/ELF continuously radiating systems could be maintained in orbit with moderate power requirements. The effect of tether length on the power going into electromagnetic waves and whether a single or dual tether system is preferable for the self-driven mode is discussed. It is concluded that the single tether system is preferable over the dual system

Chloridotris[tris­(4-fluoro­phen­yl)phosphine]rhodium(I) methanol solvate

In the title compound, [RhCl{P(p-FC6H4)3}3]·CH3OH, the Rh atom adopts a distorted square-planar geometry. Rh, Cl and one P atom lie on a mirror plane, as does the solvent molecule. There are two inter­molecular hydrogen bonds, one between the methanol O atom and an aryl H atom (2.51 Å), and one between the Cl atom and the hydr­oxy H atom of methanol [2.34 (3) Å]. The complex precipitates in trace amounts from a reaction between RhCl(cod)(thp) [cod is 1,5-cyclo­octa­diene and thp is tris­(hydroxy­meth­yl)phos­phine] and P(p-FC6H4)3 under argon in CD3OD. Two C6H4-F units are disordered over two positions; for one the site occupancy factors are ca. 0.53 and 0.47, for the other the values are ca. 0.64 and 0.36. The methyl H atoms of the solvent molecule are disordered across the mirror plane

trans-Carbonyl­chloridobis(tri-p-tolyl­phosphine)rhodium(I) acetone solvate

The title compound, [RhCl(C21H21P)2(CO)]·C3H6O, was precipitated in trace yield from a reaction of RhCl(cod)(THP) with P(p-tol)3 in a 1:1 acetone-d 6/CD3OD solution under a hydrogen atmosphere [p-tol = p-tolyl, THP = tris­(hydroxy­meth­yl)phosphine, P(CH2OH)3, and cod = 1,5-cyclo­octa­diene]. The complex displays a square-planar geometry around the RhI atom. The complex mol­ecules and the acetone mol­ecules are linked into a chain along the a axis by inter­molecular C—H⋯Cl and C—H⋯O hydrogen bonds

Responsabilidad médica

ResumenEl presente artículo intenta abordar de una manera inteligible para el lector no jurista la nueva realidad de la actividad médica en relación a la responsabilidad del médico por sus actos evitando los tecnicismos legales y sacrificando la precisión legal en beneficio de la mejor comprensión del texto. Analizaremos la responsabilidad médica en base a las normas y principios que inspiran nuestra legislación, y la aplicación de los mismos que efectúan nuestros tribunales de justicia. Especial atención se otorga al consentimiento informado y a la confidencialidad médica, temas a los que se les dedica un acápite especial. Asimismo, analizaremos en un acápite especial otro tema íntimamente relacionado con la responsabilidad del médico, como es el seguro de responsabilidad civil existente en el mercado y que protege patrimonialmente al médico frente a reclamaciones de terceros, tema muchas veces desconocido, pero que hoy se vuelve indispensable frente a la nueva realidad de la actividad médica.SummaryThe present article intends to give an approach in an intelligible way for the non-jurist reader concerning the new reality in the medical activity, in relation to procedures avoiding legal technicalities and to sacrifice legal precision so as to gain a better understanding of the text. We will analyze the medical responsibility on the basis of the rules and principles which inspire our legislation and their application that our judicial courts apply. A special attention is given to the informed consent and the medical’s confidence, themes that will be given a special treatment. Likewise, a special analysis will be made to another intimately paragraph in relation to the medical responsibility, such as the civilian insurance responsibility present in the market, which protects the doctor in a patrimonial way compared with another one’s claiming, many times this topic unknown but now indispensable compared with the medical’s activity reality

trans-Carbonyl­chloridobis(ethyl­diphenyl­phosphine-κP)rhodium(I)

The title compound, [RhCl(C14H15P)2(CO)], crystallizes with two almost identical mol­ecules in the asymmetric unit. The mol­ecules have the RhI atom in a square-planar geometry. The crystal structure involves intermolecular C—H⋯O hydrogen bonds

Weak Equivalence Principle Test on a Sounding Rocket

SR-POEM, our principle of equivalence measurement on a sounding rocket, will compare the free fall rate of two substances yielding an uncertainty of E-16 in the estimate of \eta. During the past two years, the design concept has matured and we have been working on the required technology, including a laser gauge that is self aligning and able to reach 0.1 pm per root hertz for periods up to 40 s. We describe the status and plans for this project.Comment: Presented at the Fifth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 28-July 2, 201

Zapping, Toma Directa Y Reciclaje: Percepción Y Memoria Televisiva En Banda Sonora, De Andrés Anwandter. Zapping, Live Recording And Recycling: Televised Perception And Memory In Andrés Anwandter´s Banda Sonora

RESUMEN En este trabajo se analizará el penúltimo libro de Andrés Anwandter, Banda sonora, a partir de la clave televisiva que ya sugieren el título y el epígrafe de Tom Raworth, “a door in the t.v. opened”. Para ello, primero se revisarán las filiaciones de la obra con las Eternal sections de Raworth, para luego pesquisar el modo en que el texto de Anwandter complejiza el ejercicio instaurado por el poeta inglés, mediante una trasposición a la literatura de mecanismos propios de los mass media que implican la superposición y cruces de ciertos reflejos textuales de la percepción televisiva y la memoria televisiva. Al mismo tiempo, se buscará enmarcar el análisis de esta obra en su contexto de producción, indagando como la literatura responde a la configuración actual de los nuevos medios y en qué medida se hace cargo de la convergencia de la cultura contemporánea. ABSTRACT In this paper we will analyse the penultimate book of Andrés Anwandter, Banda Sonora, from the key reading suggested by its title and Tom Raworth’s epigraph, “a door in the tv opened”. To do this, we will first review it’s affiliations with Raworth’s Eternal Sections, and then study the way in which Anwandter’s texts makes more complex the exercise introduced by the english poet, through a transposition of mass medias own mechanisms to literature, which involve overlapping and cross sectioning certain textual reflexions of televised perception and televised memory. At the same time, we will frame the analysis of this work in its production context, inquiring as to how literature responds to the current configuration of the new media and to what extent it assumes the convergence of contemporary culture

Morphological characteristics of "Monterufoli horse"

Monterufoli horse is a local endangered breed of the Tuscany and derives from the omonym area in province of Pisa. This horse derives from local wild and extinct equines and has Maremmano, Tolfetano and Oriental ancestors. The mean and the standard deviation of biometric characters, and the absolut and percentage frequency of morphological characteristics were calculated. The measures of the adult females were estimated by ANOVA considering three different class of age. The average sizes were: height at withers of 135.4±6.3 and 129.2±5.9, thorax circumference of 166.4±8.3 and 163.4±8.9, frontshank circumference of 17.7±1.5 and 17.5±0.9, for males and females, respectively. All the observed horses presented dark coat. Monterufoli horses showed the physical characteristics of local extinct ancestors (Selvena pony), but also the characteristics of other breeds that contributed to improve the local population. This horse, which was once used in agriculture and for light draught, is now involved for saddle use

C-terminal phosphorylation of NaV1.5 impairs FGF13-dependent regulation of channel inactivation

International audienceVoltage-gated Na(+) (NaV) channels are key regulators of myocardial excitability, and Ca(2+)/calmodulin-dependent protein kinase II (CaMKII)-dependent alterations in NaV1.5 channel inactivation are emerging as a critical determinant of arrhythmias in heart failure. However, the global native phosphorylation pattern of NaV1.5 subunits associated with these arrhythmogenic disorders and the associated channel regulatory defects remain unknown. Here, we undertook phosphoproteomic analyses to identify and quantify in situ the phosphorylation sites in the NaV1.5 proteins purified from adult WT and failing CaMKIIδc-overexpressing (CaMKIIδc-Tg) mouse ventricles. Of 19 native NaV1.5 phosphorylation sites identified, two C-terminal phosphoserines at positions 1938 and 1989 showed increased phosphorylation in the CaMKIIδc-Tg compared with the WT ventricles. We then tested the hypothesis that phosphorylation at these two sites impairs fibroblast growth factor 13 (FGF13)-dependent regulation of NaV1.5 channel inactivation. Whole-cell voltage-clamp analyses in HEK293 cells demonstrated that FGF13 increases NaV1.5 channel availability and decreases late Na(+) current, two effects that were abrogated with NaV1.5 mutants mimicking phosphorylation at both sites. Additional co-immunoprecipitation experiments revealed that FGF13 potentiates the binding of calmodulin to NaV1.5 and that phosphomimetic mutations at both sites decrease the interaction of FGF13 and, consequently, of calmodulin with NaV1.5. Together, we have identified two novel native phosphorylation sites in the C terminus of NaV1.5 that impair FGF13-dependent regulation of channel inactivation and may contribute to CaMKIIδc-dependent arrhythmogenic disorders in failing hearts