4,510 research outputs found
Claudia Rankine: An Evening with Claudia Rankine
No full textAn initiative of the National Endowment for the Arts in partnership with Arts Midwest, the NEA Big Read broadens our understanding of our world, our communities, and ourselves through the joy of sharing a good book. For NEA Big Read: Hampton Roads, that book is Citizen: An American Lyric.
NEA Big Read: Hampton Roads, the President\u27s Lecture Series, and the President\u27s Task Force on Inclusive Excellence invite you to a powerful evening with Claudia Rankine, the book\u27s author, hosted by Tim Seibles, Poet Laureate for the Commonwealth of Virginia, and opening with readings by local youth poets.
Claudia Rankine has written five collections of poetry, including Citizen: An American Lyric, which was selected for the National Endowment for the Arts\u27 Big Read, and two plays. She also has participated in several video collaborations and edited anthologies including The Racial Imaginary: Writers on Race in the Life of the Mind.
Rankine has received fellowships from the MacArthur and Guggenheim foundations. Citizen won several honors, including the National Book Critics Circle Award for Poetry, the PEN Open Book Award and the NAACP Image Award. Citizen also was the only poetry book to be a New York Times nonfiction bestseller. She is the Frederick Iseman Professor of Poetry at Yale University and chancellor of the Academy of American Poets
Early-middle Eocene transition in calcareous nannofossil assemblages at IODP Site U1410 (Southeast Newfoundland Ridge, NW Atlantic)
No full textEarly to middle Eocene calcareous nannoplankton evolution: paleoclimatic forcing or casual pattern?
Full text linkThis PhD thesis focuses on ecological and evolutionary dynamics of calcareous nannoplankton communities during the early-middle Eocene, when the extreme warmth condition of the Early Eocene Climatic Optimum progressively switched towards the long-term middle Eocene cooling. This time interval represents a crucial transitional phase in the long-term global Paleogene climate evolution, but the relationship between climate and calcareous nannoplankton are poorly constrained due to the lack of high resolution records. We present calcareous nannofossil data combined with stable isotope of bulk sediments and carbonate records from the deep-sea succession recovered at Site U1410 (IODP Exp. 342, northwest Atlantic). The continuous stratigraphic record and the exceptional preservation of calcareous nannofossils at Site U1410 enabled us to improve the biostratigraphic framework and to document the temporal relationship between changes in paleoenvironmental trends and modification in calcareous nannofossil assemblage. Throughout the study interval, the general long-term evolution of calcareous nannofossil assemblages is characterized by the onset and successively the dominance of family Noelaerhabdaceae. In particular, genus Reticulofenestra emerged during the EECO and became established as the prominent component of Eocene assemblages by the early Lutetian. The prominent increase in abundance observed during the latest Ypresian was concomitant with the decline of other important components of the assemblage such as Zygrhablithus, Discoaster and Sphenolithus and appears to have been favoured by a combination of different biotic and abiotic factors, such as the long-term effect of EECO coupled with minor environmental changes recorded as a positive step of δ18O. On a short-term perspective, the early Lutetian at Site U1410 is characterized by a distinctive short-term negative perturbation in the stable isotope records that have been tentatively interpreted as a warming episode that interrupted the initial post-EECO cooling phase (Chapter 2). Calcareous nannofossil assemblages seems to respond to this transient event with changes in abundance observed both in Sphenolithus and Discoaster. In addition, the exceptionally preservation of middle Eocene calcareous nannofossils enabled a comprehensive taxonomic revision of middle Eocene Coccolithus-like placoliths; the SEM analyses highlighted the development of cross or X-shaped structures in the central area (Chapter 3), which eventually lead to the description a new genus Pletolithus and a new species (Pletolithus giganteus). Finally, a taxonomic reassessment of the middle Eocene Sphenolithus furcatolithoides group was the case study of Chapter 4. Based on the morphology and extinction pattern we described the successive steps observed in this lineage that led to comprehensive understanding of the stepped evolution of this group. More importantly, these taxonomic studies improve the stability of middle Eocene biostratigraphic schemes and highlight that the appearance of reiterative characters, a apical spine within sphenoliths and a robust structure in the central area within coccolithaceans, have occurred during a phase of relatively stable conditions during the Lutetian
Portrait of Claudia Lynn Pittman.
No full textHandwritten inscription: Claudia Lynn Pittman, 20 yrs old, Hattiesburg.https://egrove.olemiss.edu/joephoto_c/1129/thumbnail.jp
Homonoia - Concorda - Sammanasya
No full textAnalysis of the divine figures of Homónoia in the Greek pantheon, Concordia in the Roman pantheon, and Sammanasya in the Vedic pantheon. Claudia Santi is the author of Homónoia; Andrzej Gillmeister is the author of Concordia; Antonio Salvati is the author of Sammanasya. As regards Homónoia, the origin of this personified abstraction seems to be traced back to the political debate of Athens in the last 5th century. Maybe it was created by Antiphon as opposed to stásis, both in the meaning of ‘psychic conflict’ and ‘internal political dissensions, civil war’
Claudia Emerson, 31st Annual ODU Literary Festival
No full textClaudia Emerson was awarded the 2006 Pulitzer Prize in Poetry for her book Late Wife: Poems (LSU Press, 2005). She is also the author of the poetry collections Pharaoh, Pharaoh, and Pinion: An Elegy; all volumes are published in Dave Smith’s Southern Messenger Poets series. Her poems have appeared in Poetry, Southern Review, Shenandoah, TriQuarterly, New England Review and other journals. Emerson is the recipient of a Witter Bynner Fellowship from the Library of Congress and fellowships from the National Endowment for the Arts and the Virginia Commission for the Arts. She is an associate professor of English at the University of Mary Washington in Fredericksburg, Va
DETERMINATION OF THE IMMUNOSTIMULATORY ROLE OF ASAIA IN AEDES AEGYPTI: A POTENTIAL SYMBIONT-BASED CONTROL APPROACH?
No full textRecurring outbreaks of arboviruses such as dengue on a global scale, it is imperative to adopt multifaceted
strategies to limit the transmission of mosquito-borne diseases (MbDs). Insecticide and drug
resistance, coupled with the absence of effective vaccines, presents a significant obstacle in combating
MbDs. Recent years have seen a deeper understanding of mosquito microbiota, revealing its role in
different traits of the mosquito biology such as sexual reproduction, development, nutrition, and resistance
to pathogens. As a reflection of this new knowledge, exploitation of symbiotic bacteria of vector
mosquitoes has emerged as a potential control-strategy of MbDs. For instance, the symbiotic bacterium
Asaia has been shown to activate immune genes in different insect hosts including Anopheles where it
elicits an anti-plasmodium response (Gonnella et al., 2019. Front Physiol, 10:795; Cappelli et al., 2019.
Front Genet, 10:836). The present study investigates the effect of Asaia on the immune system of a
main vector of arboviruses such as Ae. aegypti. A laboratory strain of Ae. aegypti (New Orleans 2011)
was reared at standard conditions. The experimental set up included three groups of female mosquitoes
(a, b and c). Groups a and b received different dietary boosts of Asaia, respectively 105 cell/ml and
108 cells/mL while the control group c received a normal diet. Half of the mosquitoes per each group
were feed with blood meal and collected daily for 5 days post feeding. The Asaia amount was monitored
in all the tested samples by qPCR. The expression of transcription factors (Rel 1, Rel 2) and effectors
genes of IMD and Toll (Cecropin A, Defensin C, Gambicin and C-type Lectin) cascades together with
two genes (Heme peroxidase 7, Superoxide dismutase) codifying enzymes involved in the degradation
of Reactive oxygen Species (ROS) were evaluated by qPCR. Moreover, the effect of Asaia supplementation
on the microbiota composition was assessed through 16S MiSeq analysis. Outcomes suggest
that the analysed antimicrobial peptide genes and transcription factors are not affected by Asaia overloads,
nonetheless the expression of two ROS genes increased concurrently with the proliferation of
the bacterium on the second day post-blood meal. These observations need to be corroborated by further
analysis for quantifying specific metabolites associated with oxidative stress. Microbiota analysis
indicates a marked proliferation of Asaia following blood-feeding, emerging as the predominant bacterium.
Other symbiont such as pantoea exhibited a modest increase in abundance and pseudomonas
experienced a sharp decrease. Exploring the Asaia-Ae. aegypti system to investigate the influence of
symbiotic bacteria on stimulating the mosquito immune response against arboviruses, holds potential.
This could pave the way for the development of symbiotic-based interventions that can complement
existing approaches in the field
Assessment of the phytoremediation potential of Canola (Brassica Napus) and Vetiver (Vetiveria Zizanioides L.) for toxic elements
No full textPhytoremediation permits to contain or remove contaminants in soils by using pollutantaccumulating
plants that can immobilize or extract and translocate them to the harvestable parts.
We report about a study carried out for assessing the phytoremediation potential of canola
(Brassica Napus L.) and vetiver (Vetiveria Zizanioides L.) in soils contaminated by toxic elements,
in the framework of a pot-experiment. The plants were grown in soils sampled in a contaminated
area, using two different agricultural conditions: with and without phosphatic fertilization. With the
aim to consider all the input and output of toxic elements, not only soils and vegetable tissues, but
also the irrigation waters (or rainwater), the added fertilizers and the percolation waters were
analyzed. Main physical-chemical properties of soils were determined; the total contents of toxic
elements before and after the plant growing were compared. As concerns canola and vetiver
plants, the toxic element contents were determined in the different tissues apart. Moreover,
considering that the total elemental content in soils is insufficient – in respect to the bioavailable
fractions – to explain their translocation from soils to plants, soils were submitted to selective
extraction procedures for obtaining information about the mobile (or mobilizable) fractions of toxic
elements. In this way, it was possible to determine the Translocation Factor (TF) of each toxic
element in the two plant species in the two different agricultural conditions and to evaluate the
Bioconcentration Factors (BF), in respect not only to the elemental total contents in soils, but also
to the bioavailable fractions
Governance of Platform Ecosystems-Designing Understandable Processes for Digital High Street Retail
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