N.G.T.F press conference with Dr. Bruce Voeller

General note: Title and date provided by Bettye Lane.

Dr. Bruce Voeller with partner at protest for passage of civil rights bill Intro 475

General note: Title and date provided by Bettye Lane. Digital reproduction

Dr. Bruce Voeller and his lover and other gays at N.G.T.F. Party

General note: Title and date provided by Bettye Lane.

1958 Dana Johnson

1958-1959 Miss Lincoln

Benthic foraminifera groups of ODP Site 162-982

The pulsed decline and eventual extinction of 51 species of elongate, cylindrical deep-sea benthic foraminifera (Stilostomellidae, Pleurostomellidae, and some Nodosariidae) occurred at intermediate water depths (1145-2168 m, Sites 980 and 982) in the northern North Atlantic during the mid-Pleistocene transition (MPT, 1.2-0.6 Ma). In the early Pleistocene, prior to their disappearance, these species comprised up to 20% of the total abundance of the benthic foraminiferal assemblage at 2168 m, but up to only 2% at 1145 m. The MPT extinction of 51 species represents ?20% of the total benthic foraminiferal diversity at bathyal depths in the North Atlantic (excluding the myriad of small unilocular forms). The extinction rate during the MPT was approximately 10 species per 0.1 myr, being one or two orders of magnitude greater than normal background turnover rates of deep-sea benthic foraminifera. Comparison of the precise timings of declines and disappearances (= highest occurrences) of each species shows that they were often diachronous between the two depths. The last of these species to disappear in the North Atlantic was Pleurostomella alternans at ~0.679 and ~0.694 Ma in Sites 980 and 982, respectively, which is in good agreement with the previously documented global "Stilostomella extinction" datum within the period 0.7-0.58 Ma. Comparison with similar studies in intermediate depth waters in the Southwest Pacific Gateway indicates that ~61% of the extinct species were common to both regions, and that although the pattern of pulsed decline was similar, the precise order and timing of the extinction of individual species were mostly different on opposite sides of the world. Previous studies have indicated that this extinct group of elongate, cylindrical foraminifera lived infaunally and had their greatest abundances in poorly ventilated, lower oxygen environments. This is supported by our study where there is a strong positive correlation (r = ~+ 0.8) between the flux of the extinction group and low-oxygen/high organic input species (such as Uvigerina, Bulimina and Bolivina) during the MPT, suggesting a close relationship with lower oxygen levels and high food supply to the sea floor. The absolute abundance, flux, and number of the extinction group of species show a progressive withdrawal pattern with major decreases occurring in cold periods with high d13C values. This might be related to increasing chemical ventilation of glacial intermediate water.

(Table 1, page 376), Composition of manganese deposits from the Gulf of Aden and the Carlsberg Ridge

Iron-manganese nodules from the ocean floor have been extensively studied. But, because of the fine grain size of the particles of the nodules, structural identification by X-ray and electron diffraction techniques is difficult and the mineralogy of the iron oxide phase has not been well characterized. The observation of the Mössbauer spectrum-in which each nucleus absorbs gamma-rays independently-is not limited by particle size in the same way as is the observation of Bragg peaks in diffraction measurements, in which radiation must be scattered coherently from a large number of atoms. The magnetic hyperfine splitting in the Mössbauer spectrum of magnetic materials is affected, however, when the particles are so small that they become superparamagnetic. We describe here an investigation using the 57Fe Mössbauer effect of two iron-manganese nodules in which the iron oxide phase could not be detected by X-ray or electron diffraction.

El periodismo deportivo condicionado por la gestión comunicativa de los clubes de fútbol: el caso del FC Barcelona

Las relaciones entre los gabinetes de Comunicación de los clubes de fútbol y los periodistas deportivos se enmarcan en el modelo de Gieber y Johnson (1961) por el que el hecho de que ambos compartan objetivos comunes, donde los gabinetes de Comunicación necesitan que los medios publiquen determinadas informaciones y los periodistas precisan de noticias que publicar, provoca una pérdida de independencia por parte de los periodistas, ya que necesitan a esos departamentos como fuentes. En la actualidad, los departamentos de Comunicación de los clubes de fútbol, como el del FC Barcelona, se han constituido en gatekeepers. Esto ha acentuado las históricas diferencias que existen entre los periodistas y los profesionales de la comunicación corporativa, incrementado por el control informativo de estos departamentos lo que provoca constantes tensiones entre ambos.

Marine casualty report : entanglement of the submersible Johnson Sea Link with submerged wreckage off Key West, Florida on or about 17 June 1973 with loss of life : U.S. Coast Guard Marine Board of Investigation report and commandant's action : action by National Transportation Safety Board /

Cover title.

Respuesta a estrés iónico/Ph alcalino en ustilago maydis (Stevenson and Johnson, 1944) (ustilaginales, ustilaginaceae)

Todo organismo se enfrenta a condiciones desafiantes durante su desarrollo; variaciones de temperatura, humedad, presión osmótica y de pH, esta última condición se ve implicada en el grado de disponibilidad de nutrientes, entre ellos los metales, cuya solubilidad depende del pH del medio, por lo que la homeostasis de las concentraciones intracelulares de iones es fundamental para la fisiología de todo organismo vivo. El zinc forma parte estructural y es cofactor catalítico de numerosas enzimas y factores de transcripción, es por ello, que el transporte del metal está altamente regulado. Se han descrito transportadores de zinc y/o hierro pertenecientes a la familia ZIP, donde los principales representantes son Zrt1p y Zrt2p de alta y baja afinidad a zinc respectivamente, expresados ante condiciones limitantes de zinc en la levadura Saccharomyces cerevisiae. En el presente estudio fueron caracterizados 2 genes que codifican para transportadores de zinc en el hongo basidiomiceto Ustilago maydis; el gen codificado en el marco de lectura abierto um00096 corresponde a un transportador de alta afinidad a zinc, siendo ortólogo a ZRT1 de S. cerevisiae, mientras que el gen codificado en el marco um03110 presentó menor afinidad por el metal, nuestros resultados indican que pudiese ser transportador de otro metal. Mediante transcripción reversa y reacción en cadena de polimerasa punto final (RTPCR), se identificó que el factor de transcripción Rim101p participa en la regulación del gen ZRT2 de U. maydis, actuando como represor, en ambientes ácidos y limitantes de zinc, y como activador en pH neutro y bajas concentraciones de zinc.

A traceless variant of the Johnson-Segalman viscoelastic model

A traceless variant of the Johnson-Segalman viscoelastic model is presented. The viscoelastic extra stress tensor is de composed into its traceless (deviatoric) and spherical parts, leading to a reformulation of the classical Johnson-Segalman model. The equivalente of the two models is established comparing model predictions for simple test cases. The new model is validated using several 2D benchmark problems.The structure and behavior of the new model are discussed.