AMS C-14 ages of coretops collected on RRS Charles Darwin cruise CD159, July 2004, N. Atlantic, for the NERC RAPID programme

Material and data were collected at 41 sites in the subpolar North Atlantic Ocean between Scotland and Newfoundland, during the RRS CharlesDarwin CD159 cruise in July 2004 (McCave, 2005). Sites were selected to reflect the major inputs of water that becomes the North Atlantic Deep Water (NADW); the Iceland-Scotland Overflow Water (ISOW), the Denmark Strait Overflow Water (DSOW) and the Labrador Sea Water (LSW). Areas cored were the south Iceland Rise, SE Greenland slope/rise and Eirik Drift, and the Labrador margin. A total of 29 box cores, 19 piston cores, 6 kasten cores, 9 short gravity cores and 20 CTD casts as well as 28 surface water samples were collected during the cruise. Here we present sediment core-top sample ages. The cores were sampled at 1 or 0.5 cm intervals and we used the top 1 or 2 cm, depending on availability of foraminifera in the samples. Sediment samples were disaggregated on an end-over-end wheel, wet sieved at >63 um, and dry sieved to 63-150 and >150 um. Accelerator Mass Spectrometer (AMS) radiocarbon dating was done for each core top based on between 900-1600 monospecific planktonic foraminifera (Globigerina bulloides or Neogloboquadrina pachyderma (sinistral)). All dates were of modern or late Holocene age except site RAPID-08-5B (9806 ± 38 uncorrected 14C years BP) and site RAPID-14-10B (11543 ± 40 uncorrected 14C years BP). The >150 um fraction was split until approximately 300 foraminifera remained and counted for number of lithic grains, benthic foraminifera, planktonic foraminifera and foraminifera fragments. In all but the shallowest sample (Greenland rise, 761m water depth) benthic foraminifera constituted less than 2% of the total >150 um fraction of the sample.

Na 1 Nachlass Max Horkheimer, 805 - Verschiedene Essays, Manuskripte, Entwürfe und Notizen u.a. aus dem Umkreis / bzgl. "Dialektik der Aufklärung" (p. XI 6a - XI 16.1-17)

"Notes. Verschiedene Essays"; Diese Mappe enthielt ursprünglich Fassungen von Aphorismen aus dem Umkreis von "Dialektik der Aufklärung", die den entsprechenden Stücken zugeordnet wurden; außerdem:; 1. Auszüge aus Thomas Hobbes, Leviathan; englisch, Anfang und Schluss fehlen. Typoskript, 5 Blatt; 2. Das Allgemeine nicht tiefer als das Besondere [= "Klassifikation" in der 'Dialektik der Aufklärung']. Typoskript, 1 Blatt; 3. Müßiggang als Merkmal vorbürgerlichen und nachbürgerlichen Zeitalters [GS 12, S. 315]. Typoskript, 1 Blatt; Thesen über Antisemitismus; Zumindest teilweise Vorarbeiten zum Kapitel "Elemente des Antisemitismus" der 'Dialektik der Aufklärung', 1943:; 1. Teilstück aus Abschnitt IV der "Elemente". Typoskript mit eigenen Korrekturen und Manuskript, 4 Blatt; 2. Teilstück aus Abschnitt V der "Elemente". Typoskript, 2 Blatt; 3. Antisemitismus als rationalisierte Ideosynkrasie. Typoskript mit eigenen Korrekturen, 1 Blatt; 4. Mimikry und Selbsterhaltung, Teilstücke:; 4a) Typoskript mit eigenen Korrekturen, 1 Blatt; 4b) Typoskript mit eigenen Korrekturen, 2 Blatt; 4c) Typoskript mit eigenen Korrekturen, 1 Blatt; 5. Technokratie und Faschismus. Teilstück, Typoskript, 1 Blatt; 6. Antisemitismus als verschobener Haß gegen kapitalistische Ausbeutung; Protokoll einer Diskussion zwischen Max Horkheimer und Theodor W. Adorno. Typoskript, 2 Blatt; 7. Über antisemitische Ideosynkrasie; Protokoll einer Diskussion zwischen Max Horkheimer und Theodor W. Adorno zur "Dialektik der Aufklärung", 'Elemte des Antisemitismus', These 4. Fragment, Typoskript, 1 Blatt; 8. Über Mimesis; Protokoll einer Diskussion zwischen Max Horkheimer und Theodor W. Adorno [GS 12, S. 587 ff.]. Typoskript, 3 Blatt; 9. - 10. Über Probleme der Erkenntnis des Antisemitismus in der Tradition der Humanwissenschaften. Typoskript, englisch, mit eigenen Korrekturen, 2 Blatt; 11. Völkischer Antisemitismus; Korrekturblatt. Manuskript, 4 Blatt; 12. Eigene und handschriftliche Notizen, 22 Blatt; 13. Exzerpte aus Werken Friedrich Nietzsches. Typoskript, 3 Blatt; 14. Exzerpt aus Gregorovius: "Wanderjahre in Italien". Typoskript, 1 Blatt; 15. Adorno, Theodor W.: Über antisemitische Propaganda. Typoskript mit eigenen Korrekturen, 6 Blatt; 16. Adorno, Theodor W.: Eigene Notizen, 3 Blatt; 17. 1 Zeitungsausschnitt, 1 Blatt; Manuskripte und Entwürfe als Vorarbeiten oder aus dem Umkreis der "Dialektik der Aufklärung":; 1. Über das Verhältnis von Naturbeherrschung und gesellschaftlicher Herrschaft; [von Theodor W. Adorno ?]. Entwurf, Typoskript, 3 Blatt; 2. Theodor W. Adorno [?]: Über Mythologie und Aufklärung. Typoskript mit eigenen Korrekturen, 13 Blatt; 3. Über das Verhältnis von Ökonomie und Politik in Liberalismus und Spätkapitalismus [GS 12, S. 316 - 318]. Typoskript mit eigenen Korrekturen, 3 Blatt; 4. Über den Begriff des Geistes in der materialistischen Aufklärung: Element der Macht. Teilstück, Typoskript und Manuskript, 1 Blatt; 5. Eigene Notizen u.a. über: Verhältnis von Geist und Natur, Verhältnis der Freudschen Methode zum Positivismus; Entwurf des Romans über Neville Chamberlain; 1942:; 1. "Grober Umriß der Handlung". Typoskript, 12 Blatt; 2. Anfang des Romans [GS 12, S. 329 - 341]:; 2a) Typoskript mit eigenen Korrekturen, 3 Blatt und eigene Notiz, 1 Blatt; 2b) Typoskript mit eigenen Korrekturen, 2 Blatt; 2c) Typoskript mit eigenen Korrekturen, 1 Blatt; 3. Exzerpte aus Schriften über Chamberlain, gesammelt von Herbert Marcuse. Typoskript, 8 Blatt, mit einer eigenen Notiz von Friedrich Pollock für Max Horkheimer, 1 Blatt; 4. Abschriften aus Zeitungsartikeln über Chamberlain. Typoskript, 22 Blatt; 5. Bibliotheks-Leihscheine und Literaturangaben. Handschriftliche Notizen, 10 Blatt; Über Psychoanalyse; um 1942. Fragment, Typoskript mit eigenen Korrekturen, 4 Blatt; Über Rackets, ihre Bedeutung von der Antike bis zum Kapitalismus; Zu einer Theorie des Proletariats; 1942:; 1. Notizen zum Programm des Buches, 30.8.1942. 2 Blatt; 2. Exzerpte aus Schriften zur Geschichte der Rackets (von Theodor W. Adorno). Typroskript, 30 Blatt; "Betrachtungen zum Curfew" [GS 5, S. 351 - 353]; um 1942:; a) Typoskript mit eigenen Korrekturen, 3 Blatt; b) Typoskript mit eigenen Korrekturen, 3 Blatt; c) Teilstück, Typoskript mit eigenen Korrekturen, 2 Blatt; d) Teilstück, Typoskript mit eigenen Korrekturen, 2 Blatt; e) Typoskript-Manuskript, 2 Blatt; "Sociology of Art" [GS 5, S. 360 - 363], 1942/1943; veröffentlicht in "Encyclopedia of the Arts", New York, 1946:; a) Typoskript, 4 Blatt; b) Photokopie des Drucks, 2 Blatt; Adorno, Theodor W.: Über Paul Tillich, "Man and Society in Religious Socialism"; Entwurf eines Briefs, 16.2.1944. Typoskript mit handschriftlichen Korrekturen von Theodor W. Adorno. 26 Blatt; "The Crisis of the Family", aus Max Horkheimers "Autorität und Familie. Allgemeiner Teil" (Paris 1936) zusammengestellt und übersetzt von Norbert Guterman (S. 63-76 und 49 - 63), 1945 ? Typoskript, 29 Blatt; New Yorker Notizen [II], 1945:; 1. "Dialektik - Mittelwek"; "Notizen zur Dialektik" [GS 12, S. 297 - 302]. Typoskript mit eigenen Korrekturen, 8 Blatt; 2. "Ritterlichkeit" [GS 12, S. 225 - 227]. Typoskript mit eigenen Korrekturen, 4 Blatt; 3. "Soziologische Unterscheidungen" [GS 12, S. 302 - 303]. Typoskript, 2 Blatt; 4. "Vertragstheorie". a) Typoskript, 6 Blatt. b) Typoskript mit eigenen Korrekturen, 7 Blatt; 5. "Bürgerliche Welt" [GS 12, S. 227 - 232]. Typoskript, 8 Blatt; 6. "Enge des Herzens" [GS 12, S. 232 - 234]. Typoskript, 2 Blatt; 7. "Unabänderlichkeit?" [GS 12, S. 234 - 237]. Typoskript mit eigenen Korrekturen, 6 Blatt; 8. "Die Juden und der Eid" [GS 12, S. 303 - 305]:; 8a) Typoskript mit eigenen Korrekturen, 3 Blatt; 8b) Typoskript mit handschriftlichen Korrekturen, 3 Blatt; 8c) Typoskript mit eigenen Korrekturen, 2 Blatt; 9. "Das Rationale und das Irrationale" [GS 12, S. 306]. Typoskript, 1 Blatt; 10. "Zur Dialektik" - "Zur Architektur" - "Zum Commerce" - "Text zu einer Illustration aus 'La Femme 100 tetes'" [GS 12, S. 306 - 308]. Typoskript, 2 Blatt; 11. "On Vivisection" = Brief an Ned R. Healy, New York, 22.3.1945. Typoskript, 2 Blatt; 12. "Der 'Schrecken' in der französischen Revolution" [GS 12, S. 238 - 239]. Typoskript mit eigenen Korrekturen, 3 Blatt; 13. "Autorität und Vernunft" [GS 12, S. 239 - 243]:; 13a) Typoskript mit eigenen Korrekturen, 6 Blatt; 13b) Typoskript mit dem Titel "Faschismus und gesellschaftliche Ordnung", 6 Blatt; 13c) Typoskript mit eigenen Korrekturen, 7 Blatt; 14. "Zum Gottesbegriff":; 14a) Typoskript, 4 Blatt; 14b) Typoskript mit eigenen Korrekturen, 4 Blatt; 15. "Der Mensch verändert sich in der Geschichte" [GS 12, S. 244 - 246]:; 15a) Typoskript, 3 Blatt; 15b) Typoskript, 3 Blatt; 16. "Zur materialistischen Geschichtstheorie" [GS 12, S. 246 - 247]. Typoskript, 2 Blatt; 17. "Die schlechten Elemente des Liberalismus" [GS 12, S. 247 - 249]:; 17a) Typoskript, 3 Blatt; 17b) Typoskript mit eigenen Korrekturen, 3 Blatt;

Novel cuticular hydrocarbons from the cane beetle Antitrogus parvulus - 4,6,8,10,16-penta- and 4,6,8,10,16,18-hexamethyldocosanes - Unprecedented anti-anti-anti-stereochemistry in the 4,6,8,10-methyltetrad

[GRAPHICS] The major cuticular hydrocarbons from the cane beetle species Antitrogus parvulus are 4,6,8,10,16-penta- and 4,6,8,10,16,18-hexamethyldocosanes, I and 2, respectively. Stereoisomers of 2,4,6,8-tetramethylundecanal of established relative stereochemistry were derived from 2,4,6-trimethylphenol and were then coupled with appropriate methyl-substituted phosphoranes 62 and 25 to furnish alkenes, which on reduction provided diastereomers of I and 2, respectively. Capillary gas chromatography, mass spectrometry, and high resolution C-13 NMR spectroscopy confirmed 1 as either 84a or 84b and 2 as either 15a or 15b. The novelty of these structures and their relative stereochemistry is briefly related to polyketide assembly.

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.

Absolute abundances of dinoflagellate cysts in surface sediment samples from four sites: Lycopodium marker-grain method

Absolute abundances (concentrations) of dinoflagellate cysts are often determined through the addition of Lycopodium clavatum marker-grains as a spike to a sample before palynological processing. An inter-laboratory calibration exercise was set up in order to test the comparability of results obtained in different laboratories, each using its own preparation method. Each of the 23 laboratories received the same amount of homogenized splits of four Quaternary sediment samples. The samples originate from different localities and consisted of a variety of lithologies. Dinoflagellate cysts were extracted and counted, and relative and absolute abundances were calculated. The relative abundances proved to be fairly reproducible, notwithstanding a need for taxonomic calibration. By contrast, excessive loss of Lycopodium spores during sample preparation resulted in non-reproducibility of absolute abundances. Use of oxidation, KOH, warm acids, acetolysis, mesh sizes larger than 15 µm and long ultrasonication (> 1 min) must be avoided to determine reproducible absolute abundances. The results of this work therefore indicate that the dinoflagellate cyst worker should make a choice between using the proposed standard method which circumvents critical steps, adding Lycopodium tablets at the end of the preparation and using an alternative method.

Antarctic sympagic meiofauna in winter

This study of Antarctic sympagic meiofauna in pack ice during late winter compares communities between the perennially ice-covered western Weddell Sea and the seasonally ice-covered southern Indian Ocean. Sympagic meiofauna (proto- and metazoans > 20 µm) and eggs > 20 µm were studied in terms of diversity, abundance and carbon biomass, and with respect to vertical distribution. Metazoan meiofauna had significantly higher abundance and biomass in the western Weddell Sea (medians: 31.1 * 10**3/m**2 and 6.53 mg/m**2, respectively) than in the southern Indian Ocean (medians: 1.0 * 10**3 /m**2 and 0.06 mg/m**2, respectively). Metazoan diversity was also significantly higher in the western Weddell Sea. Furthermore, the two regions differed significantly in terms of meiofauna community composition, as revealed through multivariate analyses. The overall diversity of sympagic meiofauna was high, and integrated abundance and biomass of total meiofauna were also high in both regions (0.6 - 178.6 * 10**3/m**2 and 0.02 - 89.70 mg/m**2, respectively), mostly exceeding values reported earlier from the western Weddell Sea in winter. We attribute the differences in meiofauna communities between the two regions to the older first-year ice and multi-year ice that is present in the western Weddell Sea, but not in the southern Indian Ocean. Our study indicates the significance of perennially ice-covered regions for the establishment of diverse and abundant meiofauna communities. Furthermore, it highlights the potential importance of sympagic meiofauna for the organic matter pool and trophic interactions in sea ice.

Global data compilation of benthic data sets II

In this study we present a global distribution pattern and budget of the minimum flux of particulate organic carbon to the sea floor (J POC alpha). The estimations are based on regionally specific correlations between the diffusive oxygen flux across the sediment-water interface, the total organic carbon content in surface sediments, and the oxygen concentration in bottom waters. For this, we modified the principal equation of Cai and Reimers [1995] as a basic monod reaction rate, applied within 11 regions where in situ measurements of diffusive oxygen uptake exist. By application of the resulting transfer functions to other regions with similar sedimentary conditions and areal interpolation, we calculated a minimum global budget of particulate organic carbon that actually reaches the sea floor of ~0.5 GtC yr**-1 (>1000 m water depth (wd)), whereas approximately 0.002-0.12 GtC yr**-1 is buried in the sediments (0.01-0.4% of surface primary production). Despite the fact that our global budget is in good agreement with previous studies, we found conspicuous differences among the distribution patterns of primary production, calculations based on particle trap collections of the POC flux, and J POC alpha of this study. These deviations, especially located at the southeastern and southwestern Atlantic Ocean, the Greenland and Norwegian Sea and the entire equatorial Pacific Ocean, strongly indicate a considerable influence of lateral particle transport on the vertical link between surface waters and underlying sediments. This observation is supported by sediment trap data. Furthermore, local differences in the availability and quality of the organic matter as well as different transport mechanisms through the water column are discussed.

Die Jahrszeiten

von Joseph Haydn.

IMMUNE-ANGIOGENESIS MECHANISMS ASSOCIATED WITH PORCINE PREGNANCY SUCCESS AND FAILURE

Spontaneous fetal loss (25-40%) leading to decrease in litter size is a significant concern to the pork industry. A deficit in the placental vasculature has emerged as one of the important factors associated with fetal loss. During early pig pregnancy, the endometrium becomes enriched with immune cells recruited by conceptus-derived signals including specific chemokine stimuli. These immune cells assist in various aspects of placental development and angiogenesis. Recent evidence suggests that microRNAs (miRNAs: small non-coding RNAs that regulate gene expression) regulate immune cell development and their functions. In addition, intercellular communication including exchange of biomolecules (e.g. miRNAs) between the conceptus and endometrium regulate key developmental processes during pregnancy. To understand the biological significance of immune cell enrichment, regulation of their functions by miRNAs and transfer of miRNAs across the maternal fetal-interface, we screened specific sets of chemokines and pro- and anti-angiogenic miRNAs in endometrial lymphocytes (ENDO LY), endometrium, and chorioallantoic membrane (CAM) isolated from conceptus attachment sites (CAS) during early, gestation day (gd)20 and mid-pregnancy (gd50). We report increased expression of selected chemokines including CXCR3 and CCR5 in ENDO LY and CXCL10, CXCR3, CCL5, CCR5 in endometrium associated with arresting CAS at gd20. Some of these differences were also noted at the protein level (CXCL10, CXCR3, CCL5, and CCR5) in endometrium and CAM. We report for the first time significant differences for miRNAs involved in immune cell-derived angiogenesis (miR-296-5P, miR-150, miR-17P-5P, miR-18a, and miR-19a) between ENDO LY associated with healthy and arresting CAS. Significant differences were also found in endometrium and CAM for some miRNAs (miR-17-5P, miR-18a, miR-15b-5P, and miR-222). Finally, we confirm that placenta specific-exosomes contain proteins and 14 select miRNAs including miR-126-5P, miR-296-5P, miR-16, and miR-17-5P that are of relevance to early implantation events. We further demonstrated the bidirectional exosome shuttling between porcine trophectoderm cells (PTr2) and porcine aortic endothelial cells (PAOEC). PTr2-derived exosomes were able to modulate the endothelial cell proliferation that is crucial for the establishment of pregnancy. Our data unravels the selected chemokines and miRNAs associated with immune cell-regulated angiogenesis and reconfirm that exosome mediated cell-cell communication opens-up new avenues to understand porcine pregnancy.

Avaliação do potencial probiótico de leveduras isoladas de azeitonas de mesa da cultivar Negrinha de Freixo

Probióticos são definidos como microrganismos vivos, que quando administrados em quantidades adequadas, conferem benefícios à saúde do hospedeiro. Atualmente a pesquisa de microrganismos probióticos a partir da fermentação da azeitona tem-se centrado nas bactérias ácido-lácticas, sendo escassos os estudos envolvendo leveduras. No presente trabalho avaliou-se o potencial probiótico de estirpes de leveduras previamente isoladas durante o processo de fermentação natural de azeitona de mesada cultivar Negrinha de Freixo. Foram avaliadas 16 estirpes em relação à atividade enzimática (catalase, amilase, xilanase, protease e β-glucosidase); ao crescimento a 37ºC; ação inibitória frente a microrganismos patogénicos; capacidade de autoagregação; atividade antioxidante (utilizando o método de DPPH); e resistência ao aparelho digestivo humano, a partir de uma simulação in vitro da digestão gástrica e pancreática. Os resultados apresentados para a atividade enzimática indicaram que em alguns isolados foi detetado fraca atividade das enzimas protease, xilanase e amilase. Já uma atividade forte de lipase foi observada nas estirpes Pichia manshurica e Saccharomyces cerevisiae (15A e 15B). Para a enzima β-glucosidase, identificou-se atividade forte em Rhodotorula graminis, Rhodotorula glutinis, Candida norvegica, Pichia guilliermondii e Galactomyces reessii. Relativamente à capacidade de crescimento à temperatura corporal (37ºC), três estirpes (Saccharomyces cerevisiae 15B; Candida tropicalis 1A; e Pichia membranifaciens 29A) destacaram-se por apresentar maior taxa específica de crescimento. A capacidade bloqueadora dos radicais livres DPPH foi verificada em 10 estirpes, sendo as estirpes de S. cerevisiae as que mais se destacaram dentre as outras. As estirpes C. norvegica e G. reessii (34A) apresentaram capacidade antifúngica frente ao microrganismo patogénico Cryptococcus neoformans. Em relação à capacidade de autoagregação avaliada, as estirpes S. cerevisiae (15A), Candida tropicalis (1A) e C. norvegica (7A) apresentaram ao fim de 24 horas percentagens superiores a 80%. Relativamenteà resistência frente às condições presentes no trato gastrointestinal in vitro, a estirpe P. guilliermondii (25A), destacou-se dentre as demais, por apresentar maior capacidade de sobrevivência em todo o processo digestivo simulado. As estirpes Candida boidinii (37A) e S. cerevisiae (15A) apresentaram menor capacidade de sobrevivência nestas condições. Contudo, serão necessários testes adicionais para complementar estes resultados.

Análisis del discurso político: estrategia hegemónica rusa para la conquista de territorio durante 1861 -1928 y 1991

La presente investigación pretende explorar la relación entre el discurso político y un proyecto hegemónico ruso para la conquista de territorio en la península de Crimea mediante la migración humana, evidente en los hechos de 2014. A partir de la evaluación de algunos momentos de migración en los últimos dos siglos (1860, 1928 y 1991) se vincula la práctica articulatoria del discurso político de cada una de las elites políticas rusas de turno con la crisis política en Crimea 2014. Lo anterior permite identificar un cierto proyecto hegemónico ruso –transversal en el tiempo - que tuvo como resultado principal la anexión de facto de Crimea a Rusia. Ésta no habría sido posible sin las acciones políticas de cada una de los gobernantes que motivaron la migración hacia Crimea, lo cual puede ser en gran parte uno de los motivos para la gran concentración de rusos en Crimea que votaron a favor de unirse a Rusia y dejar a Ucrania.