Orientation of Patient and Endotracheal Tube (1 of 5)

Pen & Ink; Dr. Norman Thompson, University of Michigan Department of Surgery

Two drawings of a house: Sheet no. 6, section E-E, 5/2/52 revised 6/28/52; sheet no. 7, section 2-2, 5/2/52 revised 6/28/52

Lance Burghardt bracketed his exposures and provided 3 different shots of these items (2 tifs, 1 jpg). Each shares same housescan number, differentiated by suffix 1of3, 2of3, or 3of3....

Activities of the Mississippi Democratic Committee : hearings ... Eighty-second Congress, first session pursuant to S. Res. 51 ... April 9-11, 16, May 2, 5, 10, 1951.

Includes index--pp.609-621.

An Ins(1,4,5)P3 receptor in Paramecium is associated with the osmoregulatory system

In the ciliate Paramecium, a variety of well characterized processes are regulated by Ca2+, e.g. exocytosis, endocytosis and ciliary beat. Therefore, among protozoa, Paramecium is considered a model organism for Ca2+ signaling, although the molecular identity of the channels responsible for the Ca2+ signals remains largely unknown. We have cloned - for the first time in a protozoan - the full sequence of the gene encoding a putative inositol (1,4,5)-trisphosphate (Ins(1,4,5)P3) receptor from Paramecium tetraurelia cells showing molecular characteristics of higher eukaryotic cells. The homologously expressed Ins(1,4,5)P3-binding domain binds [3H]Ins(1,4,5)P3, whereas antibodies unexpectedly localize this protein to the osmoregulatory system. The level of Ins(1,4,5)P3-receptor expression was reduced, as shown on a transcriptional level and by immuno-staining, by decreasing the concentration of extracellular Ca2+ (Paramecium cells rapidly adjust their Ca2+ level to that in the outside medium). Fluorochromes reveal spontaneous fluctuations in cytosolic Ca2+ levels along the osmoregulatory system and these signals change upon activation of caged Ins(1,4,5)P3. Considering the ongoing expulsion of substantial amounts of Ca2+ by the osmoregulatory system, we propose here that Ins(1,4,5)P3 receptors serve a new function, i.e. a latent, graded reflux of Ca2+ to fine-tune [Ca2+] homeostasis.

Global compilation of benthic data sets I

Approaches to quantify the organic carbon accumulation on a global scale generally do not consider the small-scale variability of sedimentary and oceanographic boundary conditions along continental margins. In this study, we present a new approach to regionalize the total organic carbon (TOC) content in surface sediments (<5 cm sediment depth). It is based on a compilation of more than 5500 single measurements from various sources. Global TOC distribution was determined by the application of a combined qualitative and quantitative-geostatistical method. Overall, 33 benthic TOC-based provinces were defined and used to process the global distribution pattern of the TOC content in surface sediments in a 1°x1° grid resolution. Regional dependencies of data points within each single province are expressed by modeled semi-variograms. Measured and estimated TOC values show good correlation, emphasizing the reasonable applicability of the method. The accumulation of organic carbon in marine surface sediments is a key parameter in the control of mineralization processes and the material exchange between the sediment and the ocean water. Our approach will help to improve global budgets of nutrient and carbon cycles.

Pollen and dinoflagellate cyst counts on sediment core M72/5_628-1 (MD72/5-25-GC1) from the Black Sea

High-resolution pollen and dinoflagellate cyst records from sediment core M72/5-25-GC1 were used to reconstruct vegetation dynamics in northern Anatolia and surface conditions of the Black Sea between 64 and 20 ka BP. During this period, the dominance of Artemisia in the pollen record indicates a steppe landscape and arid climate conditions. However, the concomitant presence of temperate arboreal pollen suggests the existence of glacial refugia in northern Anatolia. Long-term glacial vegetation dynamics reveal two major arid phases ~64-55 and 40-32 ka BP, and two major humid phases ~54-45 and 28-20 ka BP, correlating with higher and lower summer insolation, respectively. Dansgaard-Oeschger (D-O) cycles are clearly indicated by the 25-GC1 pollen record. Greenland interstadials are characterized by a marked increase in temperate tree pollen, indicating a spread of forests due to warm/wet conditions in northern Anatolia, whereas Greenland stadials reveal cold and arid conditions as indicated by spread of xerophytic biomes. There is evidence for a phase lag of ~500 to 1500 yr between initial warming and forest expansion, possibly due to successive changes in atmospheric circulation in the North Atlantic sector. The dominance of Pyxidinopsis psilata and Spiniferites cruciformis in the dinocyst record indicates brackish Black Sea conditions during the entire glacial period. The decrease of marine indicators (marine dinocysts, acritarchs) at ~54 ka BP and increase of freshwater algae (Pediastrum, Botryococcus) from 32 to 25 ka BP reveals freshening of the Black Sea surface water. This freshening is possibly related to humid phases in the region, to connection between Caspian Sea and Black Sea, to seasonal freshening by floating ice, and/or to closer position of river mouths due to low sea level. In the southern Black Sea, Greenland interstadials are clearly indicated by high dinocyst concentrations and calcium carbonate content, as a result of an increase in primary productivity. Heinrich events show a similar impact on the environment in the northern Anatolia/Black Sea region as Greenland stadials.

Saberes sobre a literatura: um estudo com professores de 1º ao 5º ano do Ensino Fundamental

El estudio investiga los saberes literários del profesores del Enseño Fundamental de las series iniciales sobre la literatura. Cuando se piensa en la influencia del profesor como aquel que tiene papel decisivo en la enseñanza de la lectura y reconocimiento de la función y formación del mediador profesional, buscamos compreender que conocimiento tiene sobre la literatura. Optamos por los profesores que trabajan en los años iniciales del Enseño Fundamental basadas en el entendimiento de la educación básica, es de suma importância en la formación del lector literário. El estudio se caracteriza por ser un enfoque cualitativo. Adoptamos como procedimientos metodológicos, la entrevista semiestructurada, elaborada com preguntas abiertas que se centran en eventos de lectura de las practicas em família, en la escuela, en la educación superiory en el ejercicio de enseãnza grabadas en audio, además de elevar um diário de campo. La investigación lleva a cabo en cuatro escuelas de la ciudad de Natal – Rn, con dicinueve profesores que trabajan con alumnos de 1º a 5º año del Enseñanza Fundamental. El corpus de la entrevista constituye el análisis de los profesores y es analizado tomando como referencia los princípios de análisis de contenido, especificado por Laurence Bardin (1997). Se tomó como referencial sobre la lectura, la literatura y práctica pedagógica los estudios teóricos de Amarilha (1991, 1992, 1994, 1997, 2003, 2006, 2007, 2009, 2010, 2013); Cosson (2011); Lajolo (2006); Larrossa (1996, 2003); Morin (2010); Yunes (2003, 2010). Sobre la teoría literaria, Candido (2002, 2012); Zilberman (1993); Culler (1999). Acerca de la estética recepción, Eco (1994); Iser (1996); Jauss (2002). Sobre los saberes docentes, Nóvoa (1992, 1997, 2002); Perrenoud (1999, 2002), Tardif (1991, 2000, 2002, 2005). Sobre los saberes literários, Paulino (2004, 2007), dentre outros. El análisis señala que los profesores dominan vários conocimientos sobre la literatura que son transportados a la formación a través del diálogo con otras lecturas, con otros espacios interactivos, en convivência con otros lectores. Cabe destacar el saber que la literatura es humanizar el fator, por lo tanto, la necesidad de escolarizá que a través de las prácticas literárias que involucran estudiantes, professores y comunidad escola. El studio también revela que en la escuela recital literário es necesario para la enseñanza de valores, para enseñar a leer, para inculcar el amor por la lectura. En este contexto, destacamos la importancia de la mediación del profesor como formador de lectores que domina los conocimientos necesarios para satisfacer las necesidades de los estudiantes, desarrollando los letctores conocimientos para fomentar el gusto por el texto literário

Organic carbon accumulation in the South Atlantic Ocean

A compilation of 1118 surface sediment samples from the South Atlantic was used to map modern seafloor distribution of organic carbon content in this ocean basin. Using new data on Holocene sedimentation rates, we estimated the annual organic carbon accumulation in the pelagic realm (>3000 m water depth) to be approximately 1.8*10**12 g C/year. In the sediments underlying the divergence zone in the Eastern Equatorial Atlantic (EEA), only small amounts of organic carbon accumulate in spite of the high surface water productivity observed in that area. This implies that in the Eastern Equatorial Atlantic, organic carbon accumulation is strongly reduced by efficient degradation of organic matter prior to its burial. During the Last Glacial Maximum (LGM), accumulation of organic carbon was higher than during the mid-Holocene along the continental margins of Africa and South America (Brazil) as well as in the equatorial region. In the Eastern Equatorial Atlantic in particular, large relative differences between LGM and mid-Holocene accumulation rates are found. This is probably to a great extent due to better preservation of organic matter related to changes in bottom water circulation and not just a result of strongly enhanced export productivity during the glacial period. On average, a two- to three-fold increase in organic carbon accumulation during the LGM compared to mid-Holocene conditions can be deduced from our cores. However, for the deep-sea sediments this cannot be solely attributed to a glacial productivity increase, as changes in South Atlantic deep-water circulation seem to result in better organic carbon preservation during the LGM.

Contribution relative des sous-types 1 et 5 des récepteurs métabotropes du glutamate dans la potentialisation à long terme des interneurones hippocampiques chez la souris

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Contribution relative des sous-types 1 et 5 des récepteurs métabotropes du glutamate dans la potentialisation à long terme des interneurones hippocampiques chez la souris

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo 1.0.5-beta)

Sub-ice shelf circulation and freezing/melting rates in ocean general circulation models depend critically on an accurate and consistent representation of cavity geometry. Existing global or pan-Antarctic data sets have turned out to contain various inconsistencies and inaccuracies. The goal of this work is to compile independent regional fields into a global data set. We use the S-2004 global 1-minute bathymetry as the backbone and add an improved version of the BEDMAP topography for an area that roughly coincides with the Antarctic continental shelf. Locations of the merging line have been carefully adjusted in order to get the best out of each data set. High-resolution gridded data for upper and lower ice surface topography and cavity geometry of the Amery, Fimbul, Filchner-Ronne, Larsen C and George VI Ice Shelves, and for Pine Island Glacier have been carefully merged into the ambient ice and ocean topographies. Multibeam survey data for bathymetry in the former Larsen B cavity and the southeastern Bellingshausen Sea have been obtained from the data centers of Alfred Wegener Institute (AWI), British Antarctic Survey (BAS) and Lamont-Doherty Earth Observatory (LDEO), gridded, and again carefully merged into the existing bathymetry map. The global 1-minute dataset (RTopo-1 Version 1.0.5) has been split into two netCDF files. The first contains digital maps for global bedrock topography, ice bottom topography, and surface elevation. The second contains the auxiliary maps for data sources and the surface type mask. A regional subset that covers all variables for the region south of 50 deg S is also available in netCDF format. Datasets for the locations of grounding and coast lines are provided in ASCII format.