The Decline of the Experimental Paradigm During the COVID-19
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Daily Evidence Digest 4 June 2020
Daily evidence digest 4 June 2020 The daily evidence digest collates recently released reports and evidence – provision of these links does not imply endorsement nor recommendation. Physical distancing, face masks, heart failure, research quality Peer reviewed journals featured: A systematic review on physical distancing, face masks, and eye protection to prevent person- to-person transmission here A rapid review on dysphagia assessment as a potential aerosol generating procedure here Impact of COVID‐19 pandemic on STEMI in a non‐COVID‐19 epicentre here A brief report on eating disorders during the COVID‐19 pandemic in Australia here Data on the impact of COVID‐19 on heart failure hospitalisation and management here A survey on the use of telemedicine for head and neck ambulatory visits here Racial and ethnic disparities in long-term services here Tele-palliative medicine volunteers in New York here A commentary on the physical, mental, and social issues and challenges faced by unpaid home care providers here A BMJ feature article on how NHS mental health services are adapting to provide care here A small case report on three COVID-19 patients with encephalopathy and encephalitis here Two ‘expressions of concern’ about the quality of information and reliability of conclusions of a retrospective study in NEJM on ACE inhibitors and ARBs here and a multinational registry analysis of hydroxychloroquine for treatment of COVID-19 in the Lancet here Letters and correspondence Self-risk assessment for patients with rheumatic disease -
Stepping Beyond the Newtonian Paradigm in Biology
Stepping Beyond the Newtonian Paradigm in Biology Towards an Integrable Model of Life: Accelerating Discovery in the Biological Foundations of Science White Paper V.5.0 December 9th, 2011 This White Paper is for informational purposes only. WE MAKE NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS DOCUMENT. © 2011 EC FP7 INBIOSA (grant number 269961). All rights reserved. The names of actual companies and products mentioned herein may be the trademarks of their respective owners. 2 The best of science doesn’t consist of mathematical models and experiments, as textbooks make it seem. Those come later. It springs fresh from a more primitive mode of thought when the hunter’s mind weaves ideas from old facts and fresh metaphors and the scrambled crazy images of things recently seen. To move forward is to concoct new patterns of thought, which in turn dictate the design of models and experiments. Edward O. Wilson, The Diversity of Life, 1992, Harvard University Press, ISBN 0-674-21298-3. 3 The project INBIOSA acknowledges the financial support of the Future and Emerging Technologies (FET) programme within the ICT theme of the Seventh Framework Programme for Research of the European Commission. 4 Contributors Plamen L. Simeonov Germany Integral Biomathics Edwin H. Brezina Canada Innovation Ron Cottam Belgium Living Systems Andreé C. Ehresmann France Mathematics Arran Gare Australia Philosophy of Science Ted Goranson USA Information Theory Jaime Gomez-Ramirez Spain Mathematics and Cognition Brian D. Josephson UK Mind-Matter Unification Bruno Marchal Belgium Mathematics and Computer Science Koichiro Matsuno Japan Biophysics and Bioengineering Robert S. -
Misinformation in the COVID-19
Editor’s column J NeuroIntervent Surg: first published as 10.1136/neurintsurg-2020-016683 on 14 August 2020. Downloaded from acute strokes, predominantly affecting Misinformation in the COVID-19 era otherwise healthy people <50 years of age.12 13 Endothelial dysfunction, hyper- Gabor Toth ,1 Alejandro M Spiotta,2 Joshua A Hirsch ,3 coaguability, ACE2 receptor variability, 4 upregulated inflammatory response and David Fiorella resultant thrombotic events have all been hypothesized as possible causes for The COVID-19 pandemic has taken a toll of primary data sources”.7 Medical jour- these unusual cases, but definitive data on humankind that is remarkable for a nals not properly “vetting” and eventually are currently lacking. One of the alter- disease in modern times. As of late June publishing high-impact articles that turn native explanations may be that some 2020, almost 500 000 people have died of out to be based on unverified data can of the “healthy” patients actually have the disease worldwide, including more misguide providers as well as the public. underlying but previously unknown than 120 000 in the USA, with estimates of Information on the disease that was previ- risk factors contributing to the vascular infected individuals approaching ously restricted to medical professionals is events. It is also possible that younger 10 million.1 The numbers of infected and now available to the broad public by the patients are more likely to have asymp- deceased patients will continue to rise. swipe of a screen, just like any other news- tomatic COVID-19 infection, and in In these times of considerable uncer- reel. -
Investigating True and False Confessions Within a Novel Experimental Paradigm Melissa B
PSYCHOLOGICAL SCIENCE Research Article Investigating True and False Confessions Within a Novel Experimental Paradigm Melissa B. Russano,1 Christian A. Meissner,2 Fadia M. Narchet,2 and Saul M. Kassin3 1Roger Williams University, 2Florida International University, and 3Williams College ABSTRACT—The primary goal of the current study was to the ‘‘Central Park Jogger,’’ in which five teenage boys provided develop a novel experimental paradigm with which to false confessions to the rape and assault of a 28-year-old study the influence of psychologically based interrogation woman. Despite the fact that all of the teenagers later retracted techniques on the likelihood of true and false confessions. their confessions and no other physical evidence conclusively The paradigm involves guilty and innocent participants linked them to the crime, they were convicted and served up to being accused of intentionally breaking an experimental 12 years in prison. Years later, Matias Reyes, a convicted serial rule, or ‘‘cheating.’’ In the first demonstration of this para- rapist and murderer, confessed to being the sole perpetrator of digm, we explored the influence of two common police inter- the attack. DNA tests of semen and pubic hair found at the rogation tactics: minimization and an explicit offer of scene of the crime confirmed that Reyes was guilty, and the boys leniency, or a ‘‘deal.’’ Results indicated that guilty persons were officially exonerated in December of 2002 (Younge, 2003). were more likely to confess than innocent persons, and that Although the actual rate of false confessions is difficult to the use of minimization and the offer of a deal increased the determine, the Innocence Project’s analysis of cases in which rate of both true and false confessions. -
Frauds in Scientific Research and How to Possibly Overcome Them Erik Boetto,1 Davide Golinelli ,1 Gherardo Carullo,2 Maria Pia Fantini1
Current controversy J Med Ethics: first published as 10.1136/medethics-2020-106639 on 6 October 2020. Downloaded from Frauds in scientific research and how to possibly overcome them Erik Boetto,1 Davide Golinelli ,1 Gherardo Carullo,2 Maria Pia Fantini1 1Department of Biomedical and ABSTRACT their activities, while also evaluating the quality of Neuromotor Sciences, University Frauds and misconduct have been common in the history the scientific evidence provided. of Bologna, Bologna, Italy 2Department of Italian and of science. Recent events connected to the COVID-19 COVID-19 pandemic is giving us a glimpse of Supranational Public Law, pandemic have highlighted how the risks and consequences how scientific research might evolve in the future: University of Milan, Milano, of this are no longer acceptable. Two papers, addressing researchers want to share their work in a quick, Lombardia, Italy the treatment of COVID-19, have been published in two of open- access fashion, in order to receive immediate the most prestigious medical journals; the authors declared feedback and recognition by their peers. Preprint Correspondence to to have analysed electronic health records from a private servers allow them to do so, as shown by their Dr Davide Golinelli, Department of Biomedical and Neuromotor corporation, which apparently collected data of tens of increased popularity: almost 4000 COVID-19 Sciences, University of Bologna, thousands of patients, coming from hundreds of hospitals. papers have been submitted to medRxiv alone as Bologna 40126, Italy; Both papers have been retracted a few weeks later. When of June 2020.1 davide. golinelli@ unibo. it such events happen, the confidence of the population While this ‘torrent of preprints’ surely contrib- in scientific research is likely to be weakened. -
ENTRESTO (Sacubitril and Valsartan) Is a Combination of a Neprilysin Inhibitor and an Angiotensin II Receptor Blocker
HIGHLIGHTS OF PRESCRIBING INFORMATION • Adjust adult doses every 2 to 4 weeks and pediatric doses every 2 weeks These highlights do not include all the information needed to use to the target maintenance dose, as tolerated by the patient. (2.2, 2.3) ENTRESTO safely and effectively. See full prescribing information for • Reduce starting dose to half the usually recommended starting dosage for: ENTRESTO. – patients not currently taking an ACE inhibitor or ARB or previously ENTRESTO® (sacubitril and valsartan) tablets, for oral use taking a low dose of these agents (2.5) Initial U.S. Approval: 2015 – patients with severe renal impairment (2.6) – patients with moderate hepatic impairment (2.7) WARNING: FETAL TOXICITY See full prescribing information for complete boxed warning. ----------------------DOSAGE FORMS AND STRENGTHS-------------------- • When pregnancy is detected, discontinue ENTRESTO as soon as • Film-coated tablets: 24/26 mg; 49/51 mg; 97/103 mg (3) possible. (5.1) --------------------------------CONTRAINDICATIONS---------------------------- • Drugs that act directly on the renin-angiotensin system can cause • Hypersensitivity to any component. (4) injury and death to the developing fetus. (5.1) • History of angioedema related to previous ACEi or ARB therapy. (4) • ----------------------------RECENT MAJOR CHANGES------------------------- Concomitant use with ACE inhibitors. (4, 7.1) • • Indications and Usage, Adult Heart Failure (1.1) 2/2021 Concomitant use with aliskiren in patients with diabetes. (4, 7.1) ----------------------------INDICATIONS AND USAGE-------------------------- ------------------------WARNINGS AND PRECAUTIONS---------------------- ENTRESTO is indicated: • Observe for signs and symptoms of angioedema and hypotension. (5.2, 5.3) • to reduce the risk of cardiovascular death and hospitalization for heart • Monitor renal function and potassium in susceptible patients. -
Covid-19 Retractions Raise Concerns About Data
News in focus in South America, says Carlos Chaccour of the Barcelona Institute for Global Health in Spain, COVID-19 RETRACTIONS who is running a clinical trial of ivermectin and had raised questions about the preprint’s data. RAISE CONCERNS ABOUT Researchers testing hydroxychloroquine in clinical trials are worried that the Lancet find- DATA OVERSIGHT ings might make it harder for them to complete their research, despite the fact that the paper Studies relied on health-record analyses from firm has been retracted. “We’re hearing that people just aren’t interested in hydroxychloroquine,” that declined to share its raw data for an audit. says David Smith, an infectious-disease special- ist at the University of California, San Diego, By Heidi Ledford and who is helping to run a trial of the drug in people Richard Van Noorden with COVID-19 who have not been hospitalized. Most data on hydroxychloroquine in wo weeks after a high-profile paper COVID-19 have come from in vitro studies in The Lancet1 reported that the anti- or small clinical trials. On 5 June, however, malarial drug hydroxychloroquine researchers working on a large randomized might be dangerous to people with UK trial called RECOVERY announced that their COVID-19, three of its four authors data on more than 4,600 hospitalized people Tretracted the work because they were unable indicated that hydroxychloroquine didn’t to independently verify their data set, a reduce the risk of death, and that they were large proprietary collection of electronic stopping that arm of the trial. health records analysed by the US company It is not uncommon for studies that use Surgisphere. -
Statistical Inference: Paradigms and Controversies in Historic Perspective
Jostein Lillestøl, NHH 2014 Statistical inference: Paradigms and controversies in historic perspective 1. Five paradigms We will cover the following five lines of thought: 1. Early Bayesian inference and its revival Inverse probability – Non-informative priors – “Objective” Bayes (1763), Laplace (1774), Jeffreys (1931), Bernardo (1975) 2. Fisherian inference Evidence oriented – Likelihood – Fisher information - Necessity Fisher (1921 and later) 3. Neyman- Pearson inference Action oriented – Frequentist/Sample space – Objective Neyman (1933, 1937), Pearson (1933), Wald (1939), Lehmann (1950 and later) 4. Neo - Bayesian inference Coherent decisions - Subjective/personal De Finetti (1937), Savage (1951), Lindley (1953) 5. Likelihood inference Evidence based – likelihood profiles – likelihood ratios Barnard (1949), Birnbaum (1962), Edwards (1972) Classical inference as it has been practiced since the 1950’s is really none of these in its pure form. It is more like a pragmatic mix of 2 and 3, in particular with respect to testing of significance, pretending to be both action and evidence oriented, which is hard to fulfill in a consistent manner. To keep our minds on track we do not single out this as a separate paradigm, but will discuss this at the end. A main concern through the history of statistical inference has been to establish a sound scientific framework for the analysis of sampled data. Concepts were initially often vague and disputed, but even after their clarification, various schools of thought have at times been in strong opposition to each other. When we try to describe the approaches here, we will use the notions of today. All five paradigms of statistical inference are based on modeling the observed data x given some parameter or “state of the world” , which essentially corresponds to stating the conditional distribution f(x|(or making some assumptions about it). -
Church Closures, Lancet, Rioters, Planned Parenthood …And Thomas More
Church Closures, Lancet, Rioters, Planned Parenthood …and Thomas More Click here to watch the video. A couple of weeks ago, I uploaded a video about the coronavirus lockdowns in California, especially with regard to the closure of churches. Since that time, many governors across the nation have issued new rules dictating exactly how many people are allowed to attend church at any given time. In all of California, for example, churches can only open their doors to 25% of their total capacity or 100 people, whichever is less. New Jersey churches can only open to 25 people. Period. In Minnesota, all religious books must be removed from churches, even though the CDC recently came out with new guidance saying the threat of spreading the virus through surface contact is remote. And until a few days ago, religious services in New York were limited to 10 people. A church in Southern California sued the governor in federal court to lift California’s restrictive order. When they lost at the Ninth Circuit Court of Appeals, they petitioned the Supreme Court to review their case. And, thanks to Chief Justice John Roberts, the church lost. It should be noted that the church is located in San Diego county—a county of 3.3 million people that has seen a total of 296 COVID deaths to date. Nevertheless, Justice Roberts gave short shrift to the First Amendment, finding that “Our Constitution entrusts the safety and the health of the people to the politically accountable officials of the States to guard and protect.” In other words, the highly questionable power of governors to lock healthy people in their homes for months on end trumps the express religious rights found in the Constitution. -
Attenuated Change Blindness for Exogenously Attended Items in a Flicker Paradigm
VISUAL COGNITION, 2000, 7 (1/2/3), 377–396 Attenuated Change Blindness for Exogenously Attended Items in a Flicker Paradigm Brian J. Scholl Rutgers Center for Cognitive Science, Piscataway, NJ, USA When two scenes are alternately displayed, separated by a mask, even large, repeated changes between the scenes often go unnoticed for surprisingly long durations. Change blindness of this sort is attenuated at “centres of interest” in the scenes, however, supporting a theory of change blindness in which attention is necessary to perceive such changes (Rensink, O’Regan, & Clark, 1997). Prob- lems with this measure of attentional selection—via verbally described “centres of interest”—are discussed, including worries about describability and explana- tory impotence. Other forms of attentional selection, not subject to these prob- lems, are employed in a “flicker” experiment to test the attention-based theory of change detection. Attenuated change blindness is observed at attended items when attentional selection is realized via involuntary exogenous capture of visual attention—to late-onset items and colour singletons—even when these manipulations are uncorrelated with the loci of the changes, and are thus irrele- vant to the change detection task. These demonstrations ground the atten- tion-based theory of change blindness in a type of attentional selection which is understood more rigorously than are “centres of interest”. At the same time, these results have important implications concerning the nature of exogenous attentional capture. It often seems, from the perspective of vision science, that our perceptual sys- tems work too well. They provide us with extremely strong intuitions about how perception works—about how and when we represent visual scenes—which often turn out to be misleading. -
Stocks Cap Best Week Since July
P2JW284000-8-A00100-17FFFF5178F What the Are Yo u Ready for Pandemic Has Fashion Again? Taught Us OFF DUTY About Science REVIEW WSJ THE WALL STREETJOURNAL WEEKEND ******** SATURDAY/SUNDAY,OCTOBER 10 -11, 2020 ~VOL. CCLXXVI NO.86 WSJ.com HHHH $5.00 Hurricane Delta Lashes Storm-Scarred Louisiana Coast Boosted What’s News Offer World-Wide Kindles he White House sub- Hope for Tstantially increased its offer to Democrats on a coronavirus-relief pack- Stimulus age, further closing the gap between the parties in the on-again, off-again ef- White House narrows fort to pass new aid for households and businesses gap with Democrats, before the election. A1 but a deal before Painful social lockdowns election faces hurdles in Europe and some Ameri- canstateshelped blunt the The White House substan- coronavirus.Now,amid afit- tially increased itsoffer to fulreopening,the pandemic S Democrats on a coronavirus- is onceagain surging. A1 PRES relief package, further closing TheCommission on Pres- the gapbetween the parties in TED idential Debates scrapped CIA the on-again, off-again effort the planned matchup next SO to passnew aid forhouseholds AS week between Trump and T/ and businesses beforethe Biden afterthe president election. said he wouldn’t partici- HERBER pateinavirtual debate. A7 ALD By Kristina Peterson, Barr has told top Re- GER Kate Davidson SECOND BLOW: Danielle Fontenot raN with her son, Hunter, to a relative’s house in Lake Charles on Friday as Delta buf- publicans that the results and Andrew Duehren feted southwest Louisiana, which is still recovering from the ravages of Category 4 Hurricane Laura six weeks ago. -
The Serial Blocking Effect: a Testbed for the Neural Mechanisms of Temporal
www.nature.com/scientificreports OPEN The serial blocking efect: a testbed for the neural mechanisms of temporal-diference learning Received: 8 January 2019 Ashraf Mahmud1, Petio Petrov1, Guillem R. Esber2 & Mihaela D. Iordanova 1 Accepted: 22 March 2019 Temporal-diference (TD) learning models aford the neuroscientist a theory-driven roadmap in Published: xx xx xxxx the quest for the neural mechanisms of reinforcement learning. The application of these models to understanding the role of phasic midbrain dopaminergic responses in reward prediction learning constitutes one of the greatest success stories in behavioural and cognitive neuroscience. Critically, the classic learning paradigms associated with TD are poorly suited to cast light on its neural implementation, thus hampering progress. Here, we present a serial blocking paradigm in rodents that overcomes these limitations and allows for the simultaneous investigation of two cardinal TD tenets; namely, that learning depends on the computation of a prediction error, and that reinforcing value, whether intrinsic or acquired, propagates back to the onset of the earliest reliable predictor. The implications of this paradigm for the neural exploration of TD mechanisms are highlighted. Error-correcting algorithms as specifed by associative (e.g.)1 and temporal-diference reinforcement learning (TDRL; e.g.)2 models have provided a particularly useful theory-driven approach to examining how learning is implemented in the brain. Indeed, uncovering the neural signature of TDRL has been at the forefront of brain science for decades. However, the extent to which TDRL’s two fundamental assumptions can be dissected at the neural level has been limited by the traditional learning paradigms available.