22,493 research outputs found
Natural history specimens collected and/or identified and deposited.
No full textNatural history specimen data collected and/or identified by Andrea Weeks, https://orcid.org/0000-0002-0000-4541. Claims were made on Bionomia, https://bionomia.net using specimen data from the Global Biodiversity Information Facility, https://gbif.org
Natural history specimens collected and/or identified and deposited.
No full textNatural history specimen data collected and/or identified by Andrea Weeks, https://orcid.org/0000-0002-0000-4541. Claims or attributions were made on Bionomia, https://bionomia.net using specimen data from the Global Biodiversity Information Facility, https://gbif.org
Natural history specimens collected and/or identified and deposited.
No full textNatural history specimen data collected and/or identified by Andrea Weeks, https://orcid.org/0000-0002-0000-4541. Claims were made on Bionomia, https://bionomia.net using specimen data from the Global Biodiversity Information Facility, https://gbif.org
Natural history specimens collected and/or identified and deposited.
No full textNatural history specimen data collected and/or identified by Andrea Weeks, <a href="https://orcid.org/0000-0002-0000-4541">https://orcid.org/0000-0002-0000-4541</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>
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Predictors of Stunting, Wasting and Underweight among Tanzanian Children Born to HIV-Infected Women.
No full textChildren born to human immunodeficiency virus (HIV)-infected women are susceptible to undernutrition, but modifiable risk factors and the time course of the development of undernutrition have not been well characterized. The objective of this study was to identify maternal, socioeconomic and child characteristics that are associated with stunting, wasting and underweight among Tanzanian children born to HIV-infected mothers, followed from 6 weeks of age for 24 months. Maternal and socioeconomic characteristics were recorded during pregnancy, data pertaining to the infant's birth were collected immediately after delivery, morbidity histories and anthropometric measurements were performed monthly. Multivariate Cox proportional hazards methods were used to assess the association between potential predictors and the time to first episode of stunting, wasting and underweight. A total of 2387 infants (54.0% male) were enrolled and followed for a median duration of 21.2 months. The respective prevalence of prematurity (<37 weeks) and low birth weight (<2500 g) was 15.2% and 7.0%; 11.3% of infants were HIV-positive at 6 weeks. Median time to first episode of stunting, wasting and underweight was 8.7, 7.2 and 7.0 months, respectively. Low maternal education, few household possessions, low infant birth weight, child HIV infection and male sex were all independent predictors of stunting, wasting and underweight. In addition, preterm infants were more likely to become wasted and underweight, whereas those with a low Apgar score at birth were more likely to become stunted. Interventions to improve maternal education and nutritional status, reduce mother-to-child transmission of HIV, and increase birth weight may lower the risk of undernutrition among children born to HIV-infected women
Maria Eichhorn 5 weeks, 25 days, 175 hours 23 April – 29 May 2016 Symposium: Saturday 23 April, 11am–5pm Introduction and Chair of symposium
No full textChisenhale Gallery presents 5 weeks, 25 days, 175 hours, the first solo exhibition in the UK and a new commission by Berlin-based artist, Maria Eichhorn. 5 weeks, 25 days, 175 hours is a two-part work examining contemporary labour conditions. The exhibition opens with a one-day symposium exploring ideas raised by the project. At Eichhorn’s request, the gallery’s staff will then withdraw their labour for the remaining five weeks of the exhibition. None of Chisenhale’s employees will work during this period and the gallery and office will be closed, implementing leisure and free time in the place of work. For more information about the exhibition please click here. The symposium features lectures by Isabell Lorey and Stewart Martin and will be chaired by Andrea Phillips. The afternoon will be devoted to a discussion with the audience, in which Maria Eichhorn will also participate. To read abstracts of the lectures by Lorey and Martin please click here.An online publication, including commissioned texts by Isabell Lorey and Stewart Martin; a discussion between Maria Eichhorn and Chisenhale Gallery staff; and an interview with the artist, is available to download
Inhibition of histone deacetylase 3 via RGFP966 facilitates unusually accurate cue memory for excitatory and inhibitory cue-reward associations
No full textEpigenetic mechanisms are key for regulating long-term memory (LTM) and are known to exert control on memory formation in multiple systems of the adult brain, including the sensory cortex. One epigenetic mechanism is chromatin modification by histone acetylation. Blocking the action of histone de-acetylases (HDACs) that normally negatively regulate LTM usually by repressing transcription, has been shown to enable memory formation. Indeed, HDAC inhibition appears to facilitate memory by altering the dynamics of gene expression events for consolidation, however less understood is how molecular-level consolidation processes alter subsequent memory for enhanced storage or retrieval. Here we used a sensory perspective to investigate from a behavioral-level whether the characteristics of memory formed with HDAC inhibitors are different from naturally-formed memory. One possibility is that HDAC-inhibition enables memory to form with greater sensory detail than normal. Because the auditory system undergoes learning-induced remodeling that provides substrates for sound-specific LTM, we aimed to identify behavioral effects of HDAC-inhibition on memory for specific sound features using a standard model of auditory associative cue-reward learning. We found that three systemic post-training treatments of an HDAC3-inhibitor (RGPF966, Abcam Inc.) in rats in the early phase of training facilitated auditory discriminative learning, and increased the specificity for acoustic frequency formed in memory of both excitatory (CS+) and inhibitory (CS-) associations for at least 2 weeks. The findings support that epigenetic mechanisms act on the sensory acuity and precision of memory, which can be revealed by studying the sensory aspects of long-term associative memory formation with HDAC inhibitors
Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
No full textSwanepoel, Wessel, Weeks, Andrea, Van Wyk, Abraham E. (2022): Commiphora omundomba (Burseraceae), a new species from Angola and Namibia. Phytotaxa 543 (4): 207-218, DOI: 10.11646/phytotaxa.543.4.
FIGURE 5 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
No full textFIGURE 5. Known distribution of Commiphora omundomba. Solid circles indicate localities supported by herbarium specimens; open circles with small central dots depict sight records only.Published as part of Swanepoel, Wessel, Weeks, Andrea & Van Wyk, Abraham E., 2022, Commiphora omundomba (Burseraceae), a new species from Angola and Namibia, pp. 207-218 in Phytotaxa 543 (4) on page 214, DOI: 10.11646/phytotaxa.543.4.1, http://zenodo.org/record/647937
FIGURE 2 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
No full textFIGURE 2. Commiphora omundomba, variation in leaf morphology (A, B) and trunk with thicker branches showing smooth, non-peeling bark (C). A. Leaves with lamina entire. B. Leaves with lamina crenate to crenate-serrate. C. Plant with short trunk (partly hollowed out), about 200 mm in diameter; note some branches with prominent almost parallel longitudinal ridges. Scale bar = 5 mm. Photographs by W. Swanepoel.Published as part of Swanepoel, Wessel, Weeks, Andrea & Van Wyk, Abraham E., 2022, Commiphora omundomba (Burseraceae), a new species from Angola and Namibia, pp. 207-218 in Phytotaxa 543 (4) on page 209, DOI: 10.11646/phytotaxa.543.4.1, http://zenodo.org/record/647937
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