2,987 research outputs found
Foraminiferal faunal responses to monsoon-driven changes in organic matter and oxygen availability at 140 m and 300 m water depth in the NE Arabian Sea
No full textThe faunal responses of benthic Foraminifera were investigated during 2003 at two contrasting sites in the Pakistan margin oxygen minimum zone (OMZ). Bottom-water-dissolved oxygen concentrations at the seasonally hypoxic 140 m site varied from 2.06 ml l-1 (92±4 µM) during the intermonsoon period (April) to 0.11 ml l-1 (5.0±0.4 µM) during the post-monsoon period (October); corresponding values at the 300 m site in the OMZ core, were 0.053 and 0.057 ml l-1 (2.36±0.09 and 2.56±0.29 µM). Live macrofaunal (>300 µm) Foraminifera (including soft-walled species) and Metazoa were examined in replicate multicore samples taken at each site during the 2003 intermonsoon and post-monsoon seasons. A low-diversity foraminiferal assemblage was dominated (>60%) by calcareous species at both sites. A total of 36 species was recognised and diversity was not greatly affected by water depth or season. At both sites, >86% of Foraminifera were restricted to the 0–1 cm layer of sediment and the ALD5 decreased from the intermonsoon to the post-monsoon periods. Densities increased from 124 (intermonsoon) to 153 (post-monsoon) indiv. 10 cm–2 at 140 m and from 86 to 122 indiv. 10 cm-2 at 300 m. Much of this increase was accounted for by the dominant species, Uvigerina ex. gr. semiornata. At 140 m, Foraminifera were 3.6 times more abundant than metazoans during the intermonsoon period, rising to 13.9 times during the post-monsoon period. The corresponding proportions at 300 m, where metazoans were rare, were 12.4 and 14.5. We conclude that calcareous Foraminifera, in particular U. ex. gr. semiornata, play a central role in OM cycling on the sea floor in the upper part of the Pakistan margin OMZ.<br/
Guidelines for Data Annotation
No full textIncluded here are a coding manual and supplementary examples of gesture forms (in still images and video recordings) that informed the coding of the first author (Kate Mesh) and four project reliability coders
Declining Unionization, Rising Inequality: an Interview with Kate Bronfenbrenner
Get PDFKate Bronfenbrenner is director of labor education research at the New York State School of Industrial and Labor Relations at Cornell University. She worked for many years as an organizer with the United Woodcutters Association in Mississippi and the Service Employees International Union in Boston. She is the author, co-author and editor of numerous books and articles on union strategies
Kate Richards: madness
No full textKate Richards’ bleakly beautiful, confronting and important book, Madness: A Memoir, describes her 15 years coping with psychosis and depression, and her long, hard-won journey back to sanity, with the help of a wise and compassionate psychologist.
In this video, she speaks with Ranjana Srivastava, an oncologist and fellow author, about her experience – and about being able to write from deep within it, with expertise as both a medical researcher and writer.
 
Community and trophic responses of benthic Foraminifera to oxygen gradients and organic enrichment
Get PDFGlobal warming and eutrophication are driving an expansion of hypoxia in the World Ocean. This will favour organisms, such as Foraminifera (testate protists), that tolerate low-oxygen conditions and may lead to an overall decline in marine biodiversity. With this in mind, community and trophic responses of benthic Foraminifera were investigated at two contrasting sites in the upper boundary (140 m water depth; bottom-water oxygen concentrations = 2.05 mll-1 during the spring intermonsoon and 0.11 mll-1 during the SW monsoon) and the core (300 m water depth; bottom-water oxygen concentration consistently ~ 0.11 mll-1) of an intense, natural, mid-water oxygen minimum zone (OMZ) on the Pakistan Margin, NE Arabian Sea. Live macrofaunal (>300 µm fraction) Foraminifera (including softwalled species) and metazoans were examined at each site during the 2003 spring intermonsoon (April) and SW monsoon (October) seasons (4 replicate multicores/site/season, 25.5cm2 surface area, 0-5 cm depth). Wet-sorting revealed a low diversity assemblage dominated (> 60 %) by calcareous Foraminifera at both sites. A total of 36 species was recognised and diversity was not greatly affected by water depth or season. At both sites, >86 % of Foraminifera were restricted to the upper 0-1 cm layer of sediment and the Average Living Depth (ALD) decreased from the spring intermonsoon to the SW monsoon (140 m, ALD5 = 0.41 to 0.33; 300 m, ALD5 = 0.65 to 0.44). Foraminifera increased in mean abundance from 124 to 153 individuals per 10 cm2 from the spring intermonsoon to the SW monsoon at 140 m and from 86 to 122 individuals per 10 cm2 at 300 m. The calcareous species Uvigerina ex. gr. semiornata dominated communities and increased in mean abundance from 54 to 118 individuals (140 m) and from 41 to 69 individuals (300 m) per 10 cm2 following the SW monsoon. At 140 m, Foraminifera were 3.6 times more abundant than metazoans during the spring intermonsoon, rising to 13.9 times during the SW monsoon. The corresponding proportions at 300 m, where metazoans were rare, were 12.4 and 14.5. Fatty acid biomarkers suggest that foraminiferal diets vary between species. The calcareous species U. ex. gr. semiornata, Bolivina aff. dilatata and Globobulimina cf. G. pyrula selectively ingested phytodetrital material, whereas the agglutinated species, Ammodiscus aff. cretaceus, Bathysiphon sp. nov. 1, and Reophax dentaliniformis favoured bacteria. Moreover, U. ex. gr. semiornata, rapidly ingested (within two days) 13C-labelled diatoms in shipboard laboratory and in situ pulse-chase experiments at the 140-m site following the SW monsoon. This enabled the uptake and processing of organic matter (OM) to be tracked in the foraminiferal cell into individual fatty acids, using Gas Chromatography - Mass Spectrometry (selective ion scan). These results suggest that calcareous Foraminifera, in particular U. ex. gr. semiornata, play a central role in OM cycling on the sea-floor in the upper part of the Pakistan margin OMZ
Book signing by SC author and illustrator Kate Salley Palmer
No full textPhotograph of Book signing by SC author and illustrator Kate Salley Palme
SC author and illustrator Kate Salley Palmer signing book
No full textPhotograph of SC author and illustrator Kate Salley Palmer signing boo
Replication Data for Statistical Analysis
No full textIncluded here is a dataset with gesture form coding from the study author (Kate Mesh). Statistical analysis of the dataset was performed using R version 3.6.1 (R Core Team, 2019), with the package, lmer (Bates, Maechler, Bolcher & Walker, 2015). An R script is attached for the purposes of replication.
R Core Team (2019). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL https://www.R-project.org/.
Douglas Bates, Martin Maechler, Ben Bolker, Steve Walker (2015). Fitting Linear Mixed-Effects Models Using lme4. Journal of Statistical Software, 67(1), 1-48. doi:10.18637/jss.v067.i01
Oral history interview with Kate Hart
No full textKate Hart, author and artist, talks her youth and how she became interested in writing young adult literature. She discusses her book, After the Fall, explaining the circumstances that led her to write the book. Hart comments on the creativity side as well as her process of writing and briefly talks about some of her other work.The Deep Roots: Oklahoma Authors Collection is a series of interviews with authors who discuss their lives, work, and creative processes
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