The High lAtitude sNow Detection and Estimation aLgorithm for ATMS (HANDEL-ATMS) is a new machine-learning (ML)-based snowfall retrieval algorithm for Advanced Technology Microwave Sounder (ATMS) ...observations that has been developed specifically to detect and quantify high-latitude snowfall events that often form in cold, dry environments and produce light snowfall rates. ATMS and the future European MetOp-SG Microwave Sounder offer good high-latitude coverage and sufficient microwave channel diversity (23 to 190 GHz), which allows surface radiometric properties to be dynamically characterized and the non-linear and sometimes subtle passive microwave response to falling snow to be detected. HANDEL-ATMS is based on a combined active–passive microwave observational dataset in the training phase, where each ATMS multichannel observation is associated with coincident (in time and space) CloudSat Cloud Profiling Radar (CPR) vertical snow profiles and surface snowfall rates. The main novelty of the approach is the radiometric characterization of the background surface (including snow-covered land and sea ice) at the time of the overpass to derive the multichannel surface emissivities and clear-sky contribution to be used in the snowfall retrieval process. The snowfall retrieval is based on four different artificial neural networks (ANNs) for snow water path (SWP) and surface snowfall rate (SSR) detection and estimate. HANDEL-ATMS shows very good detection capabilities, POD = 0.83, FAR = 0.18, and HSS = 0.68, for the SSR detection module. Estimation error statistics show a good agreement with CPR snowfall products for SSR >10-2 mm h−1 (RMSE = 0.08 mm h−1, bias = 0.02 mm h−1). The analysis of the results for an independent CPR dataset and of selected snowfall events is evidence of the unique capability of HANDEL-ATMS to detect and estimate SWP and SSR also in the presence of extremely cold and dry environmental conditions typical of high latitudes.
"The Ethics Consultant (EC), where present, is called on to offer a resolution to ethical dilemmas at different times over the course of treatment. However, it is not yet clear under which particular ...circumstances the intervention of the EC should be requested when chronic diseases occur following an acute event. As part of the treatment of these evolutionary chronic conditions, the pathway is often complex and may involve multiple actors (i.e. departments, hospitals, and others). The role of the EC is often limited to a single department and to an isolated event. Therefore, there is frequently no possibility to take into consideration all of the options inherent to the entire continuum of care and of their consequences for the patient. From intensive care units, rehabilitation wards, long-term hospitalization, through to palliative care, the pathway presents important ethical-clinical questions for the patient, for the healthcare team, and for family members. For these reasons, our objective is to develop a model of consultation integrating the EC along the continuum of care. By analyzing a series of cases, we developed an integrated model of consultation allowing the EC to intervene at different subsequent stages of the process. Our findings suggest that this model is an effective means to allow the EC to provide support in relation to single events but also to coherently pursue – within a collaborative setting across different departments – a specific course of treatment which is respectful of clinical indications and of patients’ and caregivers’ preferences along the whole pathway. "
"In the aftermath of the 2014 Ebola outbreak, media coverage was scrutinized for sensationalism, weakness in explaining scientific uncertainty, dehumanization of patients, and lack of ...contextualization. The current COVID-19 crisis presents an opportunity to assess whether the media learned its lesson. Results are mixed. Early reporting on the origin of COVID-19 in “wet markets” indicates that the media continues to do poorly with contextualization. On the other hand, stories on mortality and the infectiousness of COVID-19 indicate there has been improvement. The situation remains fluid as COVID-19 threatens to transform into a pandemic at the time of submission. Data from new countries may alter the reported rates of lethality and infectiousness, and media reporting on these changes may or may not be responsible. The explosion of social media, as a medium to promote reporting, could provide bioethicists a tool to direct the public to reliable stories and criticize inaccurate ones. Using a bioethics perspective, this poster will critically evaluate the quality of U.S. and Italian news media’s reporting on the evolving scientific understanding of COVID-19 and its contextualization. The presentation will employ QR technology to provide links to media coverage of COVID-19 from the U.S. and Italian news media. After critically appraising the quality of COVID-19 reporting, this poster will consider if bioethicists: 1) should provide comment to the media on pandemics; 2) should correct reporting for the public and 3) have a duty to publicly criticize sensationalism in the media. "
"Informed consent (IC) in older adults (≥ 70 years of age) is often complex. This holds even truer in the setting of organ transplantation (OTx), requiring patients to be informed of the risks and ...benefits associated with multiple options: whether or not to pursue a transplant, to opt for a living – where appropriate – or deceased donor, to consider a variety of choices concerning the potential for poorer organ quality or increased risk of disease transmission and others. IC overlaps with shared decision-making (SDM) in the presence of high-risk procedures, with low levels of certainty, and when two or more treatment alternatives exist. Patient decision aids (PDAs) (i.e. paper-based/electronic evidence-based tools) have been developed to complement and enhance SDM in clinical practice. Studies have proven PDAs to be an effective means to improve transplant knowledge, to foster patient participation, and to diminish decisional conflict across different settings in OTx. However, research is lacking on the effectiveness and appropriateness of these tools in older adults, which are increasingly entitled to receive OTx. The objective of our work is 1) to present the challenges posed by the use of PDAs in this group of patients and 2) to identify gaps so as to inform the agenda for research on this emergent issue. Our findings suggest that future studies should aim to the development, implementation and evaluation of PDAs for the oldest, more vulnerable segments of this specific patient population. "
SRAM based Field Programmable Gate Arrays (FPGAs) have been rarely used in High Energy Physics (HEP) due to their sensitivity to radiation. The last generation of commercial FPGAs based on 28nm ...feature size and on Silicon On Insulator (SOI) technologies are more tolerant to radiation to the level that their use in front-end electronics is now feasible. FPGAs provide re-programmability, high-speed computation and fast data transmission through the embedded serial transceivers. They could replace custom application specific integrated circuits in front end electronics in locations with moderate radiation field. The use of a FPGA in HEP experiments is only limited by our ability to mitigate single event effects induced by the high energy hadrons present in the radiation field.
•Radiation campaign on Xilinx Kintex 7 FPGAs.•Use of FPGAs in high energy physics.•Evaluation of configuration RAM and block RAM parameters after irradiation.
SRAM based Field Programmable Gate Arrays (FPGAs) have been rarely used in High Energy Physics (HEP) due to their sensitivity to radiation. The last generation of commercial FPGAs based on 28 nm ...feature size and on Silicon On Insulator (SOI) technologies are more tolerant to radiation to the level that their use in front-end electronics is now feasible. FPGAs provide re-programmability, high-speed computation and fast data transmission through the embedded serial transceivers. They could replace custom application specific integrated circuits in front end electronics in locations with moderate radiation field. Finally, the use of a FPGA in HEP experiments is only limited by our ability to mitigate single event effects induced by the high energy hadrons present in the radiation field.
Carotenoids have been hypothesized to facilitate immune function and act as free-radical scavengers, thereby minimizing the frequency of mutations. Populations of animals exposed to higher levels of ...free radicals are thus expected to demonstrate reduced sexual coloration if use of carotenoids for free-radical scavenging is traded against use for sexual signals. The intensity of carotenoid-based sexual coloration was compared among three populations of barn swallows Hirundo rustica differing in exposure to radioactive contamination. Lymphocyte and immunoglobulin concentrations were depressed, whereas the heterophil:lymphocyte ratio, an index of stress, was enhanced in Chernobyl swallows compared to controls. Spleen size was reduced in Chernobyl compared to that of two control populations. Sexual coloration varied significantly among populations, with the size of a secondary sexual character (the length of the outermost tail feathers) being positively related to coloration in the two control populations, but not in the Chernobyl population. Thus the positive covariation between coloration and sexual signalling disappeared in the population subject to intense radioactive contamination. These findings suggest that the reliable signalling function of secondary sexual characters breaks down under extreme environmental conditions, no longer providing reliable information about the health status of males.
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