68 research outputs found
Protected areas: providing natural solutions to 21st century challenges
Protected areas remain a cornerstone of global conservation efforts. The double impacts of climate change and biodiversity loss are major threats to achieving the Millennium Development Goals, especially those relating to environmental sustainability, poverty alleviation and food and water security. The growing awareness of the planet’s vulnerability to human driven changes also provides an opportunity to re-emphasize the multiple values of natural ecosystems and the services that they provide. Protected areas, when integrated into landuse plans as part of larger and connected conservation networks, offer practical, tangible solutions to the problems of both species loss and adaptation to climate change. Natural habitats make a significant contribution to mitigation by storing and sequestering carbon in vegetation and soils, and to adaptation by maintaining essential ecosystem services which help societies to respond to, and cope with climate change and other environmental challenges. Many protected areas could be justified on socioeconomic grounds alone yet their multiple goods and services are largely unrecognized in national accounting. This paper argues that there is a convincing case for greater investment in expanded and better-connected protected area systems, under a range of governance and management regimes that are specifically designed to counter the threats of climate change, increased demand and altered patterns of resource use. The new agenda for protected areas requires greater inclusivity of a broader spectrum of actors and rights holders, with growing attention to landscapes and seascapes protected by indigenous peoples, local communities, private owners and other actors which complement conservation areas managed by state agencies. Greater attention also needs to be focused on ways to integrate and mainstream protected areas into sustainable development, including promotion of “green” infrastructure as a strategic part of responses to climate change
Elatinaceae are Sister to Malpighiaceae; Peridiscaceae Belong to Saxifragales
Phylogenetic data from plastid (ndhF and rbcL) and nuclear (PHYC) genes indicate that, within the order Malpighiales, Elatinaceae are strongly supported as sister to Malpighiaceae. There are several putative morphological synapomorphies for this clade; most notably, they both have a base chromosome number of X = 6 (or some multiple of three or six), opposite or whorled leaves with stipules, unicellular hairs (also uniseriate in some Elatinaceae), multicellular glands on the leaves, and resin (Elatinacae) or latex (Malpighiaceae). Further study is needed to determine if these features are synapomorphic within the order. Malpighiaceae have previously been inferred as sister to Peridiscaceae based on rbcL sequence data, but the rbcL sequence of Whittonia is a chimera of two sequences, neither of which appears to be Whittonia. Our data from plastid (atpB, rbcL) and nuclear (18S rDNA) genes instead place Peridiscaeace as a member of the Saxifragales.Organismic and Evolutionary Biolog
Contesting a ‘Cult(ure) of Respectability’: Anti-Colonial Resistance in the Western Cape, 1935-1950
This article gives attention to two main traditions of anti-colonial resistance in the Western Cape in the period 1935 to 1950. In a comparison of the intellectual and political traditions of the Non-European Unity Movement (NEUM) and the more conservative traditions against which this movement arose, I focus in particular on the place of culture in the developing anti-colonial resistance. Whereas for an older generation of activists and intellectuals the acquisition of the behavioural, social and cultural norms of a privileged Western culture served as an important route into socio-political ‘respectability’, a central preoccupation amongst a younger generation of activist-intellectuals in the NEUM was to subject these norms to a radical counter-cultural critique.
Postoperative urinary retention after pelvic organ prolapse surgery: influence of peri-operative factors and trial of void protocol
Abstract
Purpose
Transient postoperative urinary retention (POUR) is common after pelvic floor surgery. We aimed to determine the association between peri-operative variables and POUR and to determine the number of voids required for post-void residuals (PVRs) to normalize postoperatively.
Methods
We conducted a retrospective cohort study of 992 patients undergoing pelvic floor surgery at a tertiary referral centre from January 2015 to October 2017. Variables assessed included: age, BMI, ASA score, anaesthesia type, type of surgery, length of postoperative stay, surgeon, bladder protocol used, and number of PVRs required to “pass” the protocol.
Results
Significant risk factors for POUR included: placement of MUS during POP surgery, anterior repair and hysterectomy with concomitant sacrospinous vault suspension. A total of 25.1% were discharged requiring catheterization. Patients receiving a concomitant mid-urethral sling (MUS) were 2.2 (95% CI1.6–2.9) and 2.3 (95% CI 1.8–3.1) times more likely to have elevated PVR after their second TOV and third TOV (p 2 and placement of MUS were associated with increasing number of voids needed to pass protocol.
Conclusions
While many women passed protocol by the second void, using the 3rd void as a cut point to determine success would result in fewer women requiring catheterization after discharge. Prior to pelvic floor surgery, women should be counselled regarding POUR probability to allow for management of postoperative expectations
Revising Estimates of Aquatic Gross Oxygen Production by the Triple Oxygen Isotope Method to Incorporate the Local Isotopic Composition of Water
Measurement of the triple oxygen isotope (TOI) composition of O₂ is an established method
for quantifying gross oxygen production (GOP) in natural waters. A standard assumption to this method
is that the isotopic composition of H₂O, the substrate for photosynthetic O₂, is equivalent to Vienna standard
mean ocean water (VSMOW). We present and validate a method for estimating the TOI composition of H₂O
based on mixing of local meteoric water and seawater H₂O end-members, and incorporating the TOI
composition of H₂O into GOP estimates. In the ocean, GOP estimates based on assuming the H₂O is
equivalent to VSMOW can have systematic errors of up to 48% and in low-salinity systems, errors can be
a factor of 2 or greater. In future TOI-based GOP studies, TOI measurements of O2 and H₂O should be
paired when the H₂O isotopic composition is expected to differ from VSMOW.Science, Faculty ofNon UBCEarth, Ocean and Atmospheric Sciences, Department ofReviewedResearcherPostdoctoralOthe
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