Structure of 1,2,4-oxadiazolidine-3,5-dione monohydrate

C2H2N203.H20, Mr= 120.07, monoclinic,P21/c, a= 5.011 (1), b= 11.796(2), c= 7.689 (2)A,fl= 95.22 (2) ° , V= 452.61 A 3, Z= 4, Dx= 1.76, D m = 1.75 gcm -3, /].(Cu Ks) = 1.5418 A, g = 14-0 cm -l,F(000) = 248, T = 293 K, crystal quality was poor and the final R =0.107, wR =0.090 for 881 observed reflections. The compound is derived from a novel form of the monopropellant oxalohydroxamic acid. The two exocyclic C-O bond lengths of 1.240 (3) and 1.228 (4)A indicate double bonds. The C-N bond lengths of 1.334 (4), 1.390 (4) and 1.359 (4) A are characteristic of the amide bond. The N atom covalently bonded to the two carbonyl C atoms acts as a proton donor in an intermolecular hydrogen bond to the ring O atom: N1...O3i = 2.854 ]k (i =x-- 1,y, z), H...O = 2.15 A, N-H...O = 159 °.

Protonic conductivity of (NH4) 4Fe(CN)6·1.5H2O by complex admittance method

The protonic conductivity of ammonium ferrocyanide hydrate has been studied by the complex admittance method. The admittance plots show departures from ideal Debye behaviour. The values of ionic conductivity (sigma = 3.7 X 10(-5) (OMEGA-cm)-1) and diffusion coefficient (D = 3.8 X 10(-10) cm2/s) obtained at room temperature are consistent with the corresponding values estimated by an earlier NMR study.

Timing and broad-band spectroscopy of 1A 1118-61 with Suzaku

We present a timing and broad-band pulse-phase-resolved spectral analysis of the transient Be X-ray binary pulsar 1A 1118-61 observed during its outburst in 2009 January using Suzaku observations. The Suzaku observations were made twice, once at the peak of the outburst, and the other 13 d later at its declining phase. Pulse profiles from both observations exhibit strong energy dependence with several peaks at low energies and a single peak above similar to 10 keV. A weak, narrow peak is detected at the main dip of the pulse profiles from both observations in the energy bands below 3 keV, indicating the presence of a phase-dependent soft excess in the source continuum. The broad-band energy spectrum of the pulsar could be fitted well with a partial covering cut-off power-law model and a narrow iron fluorescence line. We also detect a broad cyclotron feature at similar to 50 keV from both observations which is a feature common for accretion-powered pulsars with high magnetic field strength. The pulse-phase-resolved spectral analysis shows an increase in the absorption column density of the partial covering component, as well as variation in the covering fraction at the dips of the pulse profiles, which naturally explains energy dependence of the same. The cyclotron line parameters also show significant variation with pulse phase with an similar to 10 keV variation in the cyclotron line energy and a variation in depth by a factor of 3. This can be explained either as the effect of different viewing angles of the dipole field at different pulse phases, or due to a more complex underlying magnetic field geometry.

Inner Bound on the GDOF of the K-User MIMO Gaussian Symmetric Interference Channel

The K-user multiple input multiple output (MIMO) Gaussian symmetric interference channel where each transmitter has M antennas and each receiver has N antennas is studied from a generalized degrees of freedom (GDOF) perspective. An inner bound on the GDOF is derived using a combination of techniques such as treating interference as noise, zero forcing (ZF) at the receivers, interference alignment (IA), and extending the Han-Kobayashi (HK) scheme to K users, as a function of the number of antennas and the log INR/log SNR level. Several interesting conclusions are drawn from the derived bounds. It is shown that when K > N/M + 1, a combination of the HK and IA schemes performs the best among the schemes considered. When N/M < K <= N/M + 1, the HK-scheme outperforms other schemes and is found to be GDOF optimal in many cases. In addition, when the SNR and INR are at the same level, ZF-receiving and the HK-scheme have the same GDOF performance.

Sapientia, 1961, Vol. XVI, nº 61 (número completo)

Contenido: Conocimiento y cultura / Octavio N. Derisi – Itinerario de Manuel Gonzalo Casas / Alberto Caturelli – Los orígenes hegelianos y la esencia del marxismo / Juan A. Casaubón – Notas y comentarios -- Bibliografía

Sapientia, 1995, Vol. L, nº 195-196 (número completo)

Contenido: Naturaleza humana y gracia : el problema del humanismo cristiano / Octavio Nicolás Derisi – La moral de Tomás de Aquino en el Catecismo de la Iglesia Católica / Héctor Aguer – Santo Tomás de Aquino en la encíclica Veritatis Splendor de Juan Pablo II / Gustavo Eloy Ponferrada – La ética cartesiana entre teleología y deontología / Antonio Malo Pé – Por qué la filosofía de la naturaleza de Hegel es la parte más débil de sus sistema / Juan Alfredo Casaubon – Igualdad (ligelighed) y diferencia (forskjel) : en torno a la comunidad fraternal de S. Kierkegaard / Francisco Torralba Roselló – Metafísica de la libertad en Carlos Cardona / Eudaldo Forment – La normatividad de la naturaleza y los absolutos morales / Carlos Ignacio Massini Correas – El pecado colectivo : existencia y naturaleza / Victorino Rodríguez – The sacramental visión of lonergan’s grace and freedom / John M. McDermott – La afirmación de la trascendencia de Dios en la doctrina cristiana y en las conclusiones de la filosofía primera / Mario Enrique Sacchi – Notas y comentarios -- Bibliografía

Prudentia Iuris, 2006, n° 61 (número completo)

Editorial -- Temas de Derecho Privado -- El derecho aplicable a la contratación de servicios jurídicos / Marcelo Urbano Salerno -- La revisión del contrato / Carlos Raúl Sanz -- Apuntes sobre la tácita obligación de seguridad en el actual derecho de daños. Su particular alcance en materia de transporte de complacencia / Fernando Alfredo Urbiría -- El corpus iuris canonici: una introducción a su historia a la luz de la reciente bibliografía / Thomas Duve -- Primeras Jornadas de Derecho Natural -- El derecho natural en las sentencias del magistrado cristiano. Reflexiones de un historiador del derecho en torno de algunos pronunciamientos del Juez Tomás Casares / Ezequiel Abásolo -- El legislador divino de Las leyes / Javier H. Barbieri -- El método tópico aristotélico es un método válido para la diagramación de una Teoría General del Derecho o Introducción al Derecho Civil / Úrsula C. Basset -- Derecho natural y certeza del silogismo jurídico / Sandra T. Brandi de Portorrico -- El orden natural y la ley natural: Su conocimiento y reconocimiento / Daniel Herrera -- Tipicidad y ley natural con relación a la concreción del derecho. La autorización judicial para interrumpir un embarazo: ¿solución justa? / María Inés Montesano -- La protección jurídica del secreto religioso del ministro de culto católico en el ordenamiento jurídico argentino / María Bibiana Nieto -- Lo suyo del otro en el matrimonio: Un análisis ius filosófico de la juricidad del matrimonio y los fines estratégicos de la familia heterosexual / Ana Ortelli -- Homenajes -- Recensiones

Diário da Constituinte [gravação de vídeo] : [programa n. 196]

Representantes do PMDB, PT, PDT, PCB e PCdoB querem mudar o anteprojeto, por considerá-lo conservador. O Deputado Brandão Monteiro (PDT-RJ) declara que o grupo não aceita diversos pontos, tais como a definição do papel das Forças Armadas, a definição de anistia e o voto distrital. O grupo quer tentar mudar esses pontos através de negociação com o Relator Bernardo Cabral e com as lideranças que estão à frente do trabalho. O Deputado Nelton Friederich (PMDB-PR) considera que, caso não haja consenso, a decisão será por voto no Plenário. O Deputado José Genoíno (PT-SP) diz que o grupo tomou consciência da necessidade de agir em conjunto e da força que possui para atingir seus objetivos. Já tem data a entrega do anteprojeto de Constituição do Relator Bernardo Cabral a Comissão de Sistematização da Assembleia Nacional Constituinte (ANC). O Deputado Bernardo Cabral (PMDB-AM) esclarece que não declarou que há um complô a favor do presidencialismo e fala sobre os retoques no texto, nos tópicos da Anistia e da Reforma Agrária. Na sessão O Povo Pergunta cidadão quer saber quais os critérios que estão sendo usados na Assembleia Nacional Constituinte para uma melhor distribuição de renda. O Deputado Samir Achôa (PMDB-SP) responde que o governo deve dar maior amparo aos aposentados e aos inválidos e que a participação de empregados nos lucros das empresas faria justiça a esses trabalhadores.

Cruise Report 61-S-1 Rockfish

(PDF contains 3 pages.)

Cruise Report 61-S-2 Shrimp

(PDF contains 6 pages.)

Cruise Report 61-S-3 Albacore

(PDF contains 1 page.)

Cruise report 61-S-7 shrimp and crab

(PDF contains 7 pages.)

Cruise report 61-S-8 rockfish

(PDF contains 3 pages.)

Rhythms of division of some algae in situ and in laboratory culture. [Translation from: Studii Cerc.Biol.(Bot.) 21, 61-65, 1969. ]

The rhythm of division of 9 species belonging to different groups of algae were analysed in situ and in the laboratory. The research which developed in different environmental conditions attempted to establish the capacity for multiplication and assimilation of chlorophyll on the part of the algae under study with a view to placing them in a culture. The results obtained showed that the green multicellular algae (eg. Ulothrix) and the blue algae (eg. Lyngbya, Oscillatoria) are able to produce an appreciable quantity of dry matter, just as the unicellular algae. At the same time it arises that amongst the numerous factors of the environment, temperature plays one of the most important roles in the process of multiplication.