503 research outputs found
Emissions Input Data
No full textThis directory contains emissions input fields used to drive simulations utilized in Persad, G. The Dependence of Aerosols’ Global and Local Precipitation Impacts on Emitting Region (submitted, Atmospheric Chemistry and Physics) and published in Persad, G. G. & Caldeira, K. Divergent global-scale temperature effects from identical aerosols emitted in different regions. Nature Communications 9, 3289 (2018). Full details on simulation set-up may be found in Persad and Caldeira (2018) and Persad (submitted, Atmospheric Chemistry and Physics)
From the Persad and Caldeira (2018) Simulation and Analysis section:
"Nine 100-year, repeating annual cycle simulations were conducted in CAM5 coupled to the mixed-layer ocean: one control simulation, and eight regionally perturbed simulations. The control simulation is a year 2000 cli- mate with non-biomass burning anthropogenic black carbon, organic carbon, sulfur dioxide (SO2), and sulfate (SO4) emissions fields set to 1850 values. In each of the eight regionally perturbed simulations, the relevant region is populated with that region’s year 2000 values, scaled at every regional grid point and time step to achieve additional total annual emissions equivalent to China’s total year 2000 values: 22.4 Tg sulfate precursor, 1.61 Tg of black carbon emissions, and 4.03 Tg of organic carbon emissions. The 1850 and 2000 baseline emissions fields on which these are based are CAM5’s standard historical emissions fields1, and the resulting emissions fields used to drive simulations are publicly accessible to allow for replication in other model suites (see Data availability). "
See Persad and Caldeira (2018) Figure 1 and Methods for region definitions.
Questions can be directed to the corresponding author at [email protected]
Emissions input fields:
Control Simulation
/Control
-Control_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the control simulation. All input files listed are default available through NCAR CESM installations and the NCAR CESM server (https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/atm/cam/chem/trop_mozart_aero/emis/) and are not included here.
Eight Regional Perturbation Simulations
/Brazil
-Brazil_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Brazil. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
-
/China
-China_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in China. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/East_Africa
-East_Africa_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in East Africa. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/Western_Europe
-Western_Europe_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Western Europe. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/India
-India_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in India. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/Indonesia
-Indonesia_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Indonesia. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/South_Africa
-South_Africa_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in South Africa. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
/United_States
-United_States_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in the United States. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above)
pain-sex-race: First release
No full text<p>Datasets (analysis set, not raw data) and random forest analysis scripts (R) of predictors of pain sensitivity and pain beliefs in black and white, and male and female healthy young adults in South Africa.</p>
The impact of attention on impression formation in real-world interactions : Isabella Persad and Madhumita Rajagopal Faculty Supervisor: Dr. Pereira
No full textSocial interactions are fundamental to human life, as they enable our understanding of others and grow relationships needed for our day-to-day functioning. One of the key processes that is vital to social interactions is attention, which helps us focus and prioritize specific facial or body information in order to better understand and read other individuals. For example, prior studies asking participants to watch a series of short video interviews found that greater attention to the faces, and eyes of the speaker enhances how accurately we form impressions of their personality (Capozzi, Human, & Ristic, 2019). However, one question that remains is whether this relationship holds during real life scenarios. Thus, this study explored whether attention to facial features facilitates impression formation in a real-world interactions.
We recruited 16 participants (7 women, 6 men, 1 non-binary, age M=23.25years, range=18-35years) to complete a 20-minute conversation task with another participant, wherein each dyad was given a desert island scenario and asked to rank items that would maximize their chances of survival. Both participants wore eye tracking glasses, which monitored their attention and eye movements during the conversation task. Each participant completed personality assessments of themselves before the conversation task and of their partner after the conversation task. We measured attention to faces using an automated algorithm that tracked how often each participant’s eye movements landed on their partner’s face during the conversation task. We measured impression accuracy by calculating the difference in personality assessments between how someone rated themselves versus how their partner rated them. Preliminary results found no significant correlation between attention to faces and impression formation accuracy (r=-.03), suggesting that attention does not enhance how we socially perceive others. As such, this study hopes to inspire further research into the contribution of attention on how we form relationships with others. 
Atypical presentation of critical left main disease in an HIV-infected patient
No full textRajeev Seecheran,1 Valmiki Seecheran,2 Sangeeta Persad,2 Taarik Dookie,3 Naveen Anand Seecheran1 1Department of Clinical Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago; 2Cardiovascular Services Division, North West Regional Health Authority, Mt. Hope, Trinidad and Tobago; 3Cardiology Unit, Advanced Cardiovascular Institute, Port of Spain, Trinidad and Tobago Abstract: Coronary artery disease is currently one of the leading causes of mortality in patients with HIV. Severe left main disease (LMD) occurs in ~6% of the HIV-infected patients. We describe a case report of an atypical presentation of silent critical LMD in an HIV-infected patient who underwent a low-risk exercise stress test. The cardiovascular disease team should be vigilant for this latent phenomenon, specifically within this subpopulation despite the high Duke treadmill score. Keywords: left main disease, left main lesion, left main stenosis, human immunodeficiency virus, HI
Effect of hydrogen sulphide-donating sildenafil (ACS6) on erectile function and oxidative stress in rabbit isolated corpus cavernosum and in hypertensive rats
No full textOBJECTIVE To study the effect of the H(2)S-donating derivative of sildenafil (ACS6) compared to sildenafil citrate and sodium hydrosulphide (NaHS) on relaxation, superoxide formation and NADPH oxidase and type 5 phosphodiesterase (PDE5) expression in isolated rabbit cavernosal tissue and smooth muscle cells (CSMCs), and in vivo on indices of oxidative stress induced with buthionine sulphoximine (BSO). MATERIALS AND METHODS Relaxation was studied in an organ bath in response to carbachol and after incubation with interleukin-1beta for 12 h. CSMCs were incubated with tumour-necrosis factor-alpha or the thromboxane A(2) (TXA(2)) analogue, U46619, with or with no sildenafil citrate, ACS6 or NaHS for 16 h. Superoxide formation and the expression of p47(phox) (an active subunit of the NADPH oxidase complex) and PDE5 protein was then assessed using Western blotting. Rats were also treated with BSO (with or with no sildenafil citrate or ACS6) for 7 days; cavernosal cGMP, cAMP, glutathionine and plasma TXA(2) and 8-isoprostane F(2alpha) was measured by enzyme-linked immunosorbent assay. RESULTS ACS6 and sildenafil citrate relaxed cavernosal smooth muscle equipotently; NaHS alone had little effect at up to 100 microm. The formation of superoxide and expression of p47(phox) and PDE5 was reduced by ACS6, sildenafil citrate and NaHS (order of potency: ACS6 > sildenafil citrate > NaHS). The effects of ACS6 were blocked by inhibitors of protein kinase A (PKA) and PKG. In rats treated with BSO, both ASC6 and sildenafil citrate reduced the increased plasma levels of TXA(2) and 8-isoprostane F(2alpha) but increased cGMP, cAMP and glutathionine levels in corpus cavernosum. CONCLUSIONS By virtue of a dual action on PKA and PKG activation, ACS6 not only promotes erection, acutely, but might also have a long-term beneficial effect through inhibition of oxidative stress and downregulation of PDE5
sj-docx-1-ine-10.1177_15910199231196614 - Supplemental material for Influence of geography, stroke timing, and weather conditions on transport and workflow times: Results from a longitudinal 5-year Canadian provincial registry
No full textSupplemental material, sj-docx-1-ine-10.1177_15910199231196614 for Influence of geography, stroke timing, and weather conditions on transport and workflow times: Results from a longitudinal 5-year Canadian provincial registry by Nima Kashani, Johanna Maria Ospel, Nishita Singh, Amy Zhou, Aravind Ganesh, Jessalyn Kathryn Holodinsky, Mohammed Almekhlafi, Saman Fouladirad, Adam Frost, Lotus Yang, Robert Otani, Braedon Newton, Amit Persad, Sanchea Wasyliw, Brett R Graham, Gary Hunter, Aaron Gardner, Regan Cooley, Syed Uzair Ahmed, Lissa Peeling and Michael E Kelly in Interventional Neuroradiology</p
Prioritizing the Prevention of Early Deaths during Covid‐19
No full textThis letter responds to the essay When Is Age Choosing Ageist Discrimination?, by Teneille R. Brown, Leslie P. Francis, and James Tabery, published in the January-February 2021 issue of the Hastings Center Report
Recommended from our members
An analysis of the Texas vehicle fleet and development of a vehicle operating cost model for use in transportation planning
No full texttextVehicle operating costs are an invaluable tool to transportation engineers, who utilize them in applications such as cost-benefit analyses and utilization pricing. Many of the existing models in use, however, are significantly out-of-date with current technology.
Research was undertaken in partnership with the Texas Department of Transportation (TxDOT) to develop a new model of the operating costs associated with Texas vehicle fleets. A vehicle operating cost (Vcost) model was produced which estimates variable and fixed costs associated with both light-duty and heavy-duty vehicles. The model calculates both aggregate fleet costs and costs for individual representative vehicles. An analysis of Texas Vehicles, Titles, and Registration (VTR) records; Weigh-in-Motion data; vehicle counts; and national car sales data was used to generate the breakdown of the Texas fleet of vehicles and to determine representative vehicles. Operational costs for these vehicles fell into two main categories: fixed costs (depreciation, financing, insurance, and other) and variable costs (fuel and maintenance/repair). Relations were determined for each cost category for each representative vehicle over its entire operational age. In the case of heavy-duty vehicles, much of the operational costs information is proprietary and had to be gathered in survey work conducted with other members of a research team. A computer program was written that incorporates the cost relations for the representative vehicles as well as the Texas fleet characteristics in such a way that the user can examine the costs of both an individual vehicle and the aggregate costs associated with a fleet of vehicles. The user can also input a default fleet composition. The model allows users to alter key parameters (such as fuel price, financing rates, insurance costs, or vehicle fuel economies) for future adaptability to a changing economic and technological landscape. The model was developed in parallel with another researcher working on an advanced fuel consumption model, which would later be integrated into to the Vcost model. Mechanical Engineerin
Requirements elicitation for robotic and computer-assisted minimally invasive surgery
No full textThe robotic surgical systems and computer-assisted technologies market has seen impressive growth over the last decades, but uptake by end-users is still scarce. The purpose of this paper is to provide a comprehensive and informed list of the end user requirements for the development of new generation robot- and computer-assisted surgical systems and the methodology for eliciting them. The requirements were elicited, in the frame of the EU project SMARTsurg, by conducting interviews on use cases of chosen urology, cardiovascular and orthopaedics procedures, tailored to provide clinical foundations for scientific and technical developments. The structured interviews resulted in detailed requirement specifications which are ranked according to their priorities. Paradigmatic surgical scenarios support the use cases
The Ethical Ramifications of Recent Advances in Ovarian Transplantation
No full textThe author examines the ethical questions and issues that come with the new advances in autologous transplantation and heterologous transplantation, specifically regarding ovaries. He argues in strong favor of each’s continued advancement and thinks that jewish concerns align more in-line with non-IVF advancements and the procedure of allografting. Throughout, his paper includes comparisons with embryo freezing, oocyte freezing, sperm banking, organ transplantation, and gamete donation. The author is frequently in dialogue with John A. Robertson’s views on many of the matters, and comments on Alison McCarty’s analysis of the double effect when considering how to classify ovarian donation. Finally, genetics are not favored when answering the interesting questions: Whose ovary is it? Whose child is the product? The ovary (and its possible output) belongs to the woman who has received the transplant
- …
