bia Reviewing Antimicrobial Resistance: Where Are We Now and What Needs to Be Done? By feedproxy.google.com Published On :: Fri, 30 Aug 2019 14:55:01 +0000 Research Event 8 October 2019 - 10:30am to 12:00pm RSA House, 8 John Adam Street, London, WC2N 6EZ Event participants Tim Jinks, Head of Drug-Resistant Infections Programme, WellcomeJim O’Neill, Chair, Review on Antimicrobial Resistance; Chair, Chatham HouseHaileyesus Getahun, Director of Global Coordination and Partnership on Antimicrobial Resistance, World Health Organization Juan Lubroth, Chief Veterinary Officer, Food and Agriculture Organization (Videolink)Jyoti Joshi, Head, South Asia, Center for Disease Dynamics, Economics & PolicyEstelle Mbadiwe, Coordinator-Nigeria, Global Antibiotic Resistance PartnershipCharles Clift, Senior Consulting Fellow, Chatham House; Report Author The Review on Antimicrobial Resistance, chaired by Jim O’Neill, was commissioned by former UK prime minister, David Cameron, in July 2014. Supported by the UK government and the Wellcome Trust, the final report of the review was published in May 2016 and has had a global impact in terms of motivating political leaders and decision-makers to take more seriously the threat posed by antimicrobial resistance.Yet there is now a perception that the political momentum to address the issue is waning and needs to be reinvigorated.In a further report produced by Chatham House, the progress of the recommendations of the review is assessed and the key ways to move forward are identified.Panellists at this event, where highlights of the report are presented, provide their assessment of the progress so far and discuss priorities for future action.The report was funded by Wellcome. Department/project Global Health Programme, Antimicrobial Resistance Alexandra Squires McCarthy Programme Coordinator, Global Health Programme +44 (0)207 314 2789 Email Full Article
bia Review of Progress on Antimicrobial Resistance By feedproxy.google.com Published On :: Fri, 04 Oct 2019 13:28:22 +0000 8 October 2019 A startling lack of progress on critical recommendations to tackle antimicrobial resistance is highlighted in this new global progress report, as well as opportunities for further action and key obstacles that need to be overcome.Use the Download button to choose either the Research Paper, or the Background and Analysis Paper. Read online Research Paper Background and Analysis Dr Charles Clift Senior Consulting Fellow, Global Health Programme @CliftWorks 2019-10-04-AMR.jpg A PhD student at Melbourne’s Doherty Institute inspects the superbug Staphylcocus epidermidis on an agar plate on 4 September 2018. Photo: Getty Images. The 2016 Review on Antimicrobial Resistance has had a global impact: as an advocacy tool, in raising the profile of antimicrobial resistance (AMR) on the international agenda, and in helping to stimulate a number of new initiatives, in particular relating to the funding of early-stage research.However, there has been very little progress on the review’s central and most expensive recommendations for transforming research and development incentives for antibiotics, vaccines and diagnostics.There have been significant advances in reducing antibiotic use in agriculture, particularly in high-income countries, but there is a long way to go in low- and middle-income countries (LMICs).There has been greater investment in awareness raising but questions remain about its impact and effectiveness in changing behaviour.Proposals to restrict over-the-counter sales of antibiotics, as recommended by the Review, have foundered in the face of poor living conditions and access to healthcare in LMICs.A major reason for the use of antibiotics in LMICs is the prevalence of unhygienic conditions in the community and in healthcare facilities, which contribute to infection and limit the impact of messages about awareness and infection prevention and control.Providing quality healthcare to all and moving towards universal health coverage in LMICs will be crucial in addressing the problems of both adequate access to antibiotics and in restricting over-the-counter sales.A greater emphasis on investments in water, sanitation and housing will be central to reducing reliance on antibiotics in LMICs in the longer term. This agenda should inform the operations of governments and funding agencies such as the International Monetary Fund (IMF) and the World Bank.Investments have been made in improving surveillance of antibiotic use and resistance, particularly for humans, but more effort is required to create surveillance systems that provide data sufficiently accurate to influence policy and action. This applies also to antibiotics and resistant genes circulating in the environment.The emerging innovations in the global governance of AMR need to lead to action rather than more words. Department/project Global Health Programme, Antimicrobial Resistance Full Article
bia Schnyder corneal dystrophy-associated UBIAD1 is defective in MK-4 synthesis and resists autophagy-mediated degradation [Research Articles] By feedproxy.google.com Published On :: 2020-05-01T00:05:27-07:00 The autosomal dominant disorder Schnyder corneal dystrophy (SCD) is caused by mutations in UbiA prenyltransferase domain-containing protein-1 (UBIAD1), which uses geranylgeranyl pyrophosphate (GGpp) to synthesize the vitamin K2 subtype menaquinone-4 (MK-4). SCD is characterized by opacification of the cornea, owing to aberrant build-up of cholesterol in the tissue. We previously discovered that sterols stimulate association of UBIAD1 with ER-localized HMG-CoA reductase, which catalyzes a rate-limiting step in the synthesis of cholesterol and nonsterol isoprenoids, including GGpp. Binding to UBIAD1 inhibits sterol-accelerated ER-associated degradation (ERAD) of reductase and permits continued synthesis of GGpp in cholesterol-replete cells. GGpp disrupts UBIAD1-reductase binding and thereby allows for maximal ERAD of reductase as well as ER-to-Golgi translocation of UBIAD1. SCD-associated UBIAD1 is refractory to GGpp-mediated dissociation from reductase and remains sequestered in the ER to inhibit ERAD. Here, we report development of a biochemical assay for UBIAD1-mediated synthesis of MK-4 in isolated membranes and intact cells. Using this assay, we compared enzymatic activity of WT UBIAD1 with that of SCD-associated variants. Our studies revealed that SCD-associated UBIAD1 exhibited reduced MK-4 synthetic activity, which may result from its reduced affinity for GGpp. Sequestration in the ER protects SCD-associated UBIAD1 from autophagy and allows intracellular accumulation of the mutant protein, which amplifies the inhibitory effect on reductase ERAD. These findings have important implications not only for the understanding of SCD etiology but also for the efficacy of cholesterol-lowering statin therapy, which becomes limited, in part, because of UBIAD1-mediated inhibition of reductase ERAD. Full Article
bia Namibia's environmental laws By www.namibian.com.na Published On :: Thu, 30 Apr 2020 00:00:00 GMT THE Oxford Dictionary describes the environment as "the surroundings or conditions in which a person, animal, or plant lives or operates". Humankind has been reliant on the environment for its existence for as long as humans have been living on earth. In numerous ways, the future survival of humankind will depend on how we take care of our air, soil, rivers, oceans, animals and plants. Full Article
bia The Biannual Report on the Administration of the Convention on Biological Diversity for January to June 2013 is now available (page 27). By www.cbd.int Published On :: Wed, 23 Oct 2013 00:00:00 GMT Full Article
bia The Biannual Report on the Administration of the Convention on Biological Diversity for July to December 2013 is now available (page 36). By www.cbd.int Published On :: Thu, 08 May 2014 00:00:00 GMT Full Article
bia CBD News: Message of the Executive Secretary, Dr. Ahmed Djoghlaf, on the occasion of the Technical Workshop on Protected Areas in the Amazon, 14-16 July 2008, Amacayacú National Park, Colombia. By www.cbd.int Published On :: Mon, 14 Jul 2008 00:00:00 GMT Full Article
bia CBD Communiqué: President Pohamba of Namibia Opens the African Ministerial Conference on Access and Benefit-sharing. By www.cbd.int Published On :: Tue, 09 Mar 2010 00:00:00 GMT Full Article
bia CBD News: Statement by Mr Ahmed Djoghlaf, Executive Secretary of the Convention on Biological Diversity, on the occasion of the World Water Day Launch Event, 22 March 2010, Cali, Colombia. By www.cbd.int Published On :: Mon, 22 Mar 2010 00:00:00 GMT Full Article
bia CBD News: Statement by Ahmed Djoghlaf, Executive Secretary of the Convention on Biological Diversity, on the occasion of the Ninth Meeting of the Ad Hoc Open-Ended Working Group on Access and Benefit-Sharing, Cali, Colombia, 22 March 2010 By www.cbd.int Published On :: Mon, 22 Mar 2010 00:00:00 GMT Full Article
bia CBD News: Statement by Mr Ahmed Djoghlaf, CBD Executive Secretary, on the occasion of the 2010 Millenium Campus Conference at Columbia University, 19 September 2010, New York, Unites States of America. By www.cbd.int Published On :: Sun, 19 Sep 2010 00:00:00 GMT Full Article
bia CBD Press Release: The European Union Announces ?3.1 Million to Secure Livelihoods in the Colombian Amazon through Forest Conservation. By www.cbd.int Published On :: Wed, 30 Mar 2011 00:00:00 GMT Full Article
bia CBD News: Statement by Mr. Braulio F. de Souza Dias, CBD Executive Secretary, at the Opening of South-Eastern Atlantic Regional Workshop to Facilitate the Description of Ecologically or Biologically Significant Marine Areas, Swakopmund, Namibia, 8 to 12 A By www.cbd.int Published On :: Mon, 08 Apr 2013 00:00:00 GMT Full Article
bia CBD News: Statement by Mr. Braulio F. de Souza Dias, CBD Executive Secretary, at the opening of the Sustainable Ocean Initiative National Capacity Development Workshop for Namibia, Swakopmund, Namibia, 13 - 16 October 2015 By www.cbd.int Published On :: Tue, 13 Oct 2015 00:00:00 GMT Full Article
bia CBD News: Montreal, 13 June 2016 - China, Finland and Zambia are the latest countries to ratify the ground-breaking Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization, bringing the By www.cbd.int Published On :: Mon, 13 Jun 2016 00:00:00 GMT Full Article
bia Balancing Act: Consumers Are Willing to Sacrifice Privacy to See Fewer Digital Ads, According to New Columbia Business School Research By www8.gsb.columbia.edu Published On :: Mon, 17 Feb 2020 18:01:28 +0000 Business Economics and Public Policy Marketing Media and Technology Tuesday, February 4, 2020 - 12:45 NEW YORK – In the era of online surveillance, consumers continually express concerns about how their digital footprint is being tracked and their privacy compromised. Full Article
bia Same Old Tune: Columbia Business School Research Shows Bias Against Women in the Music Industry By www8.gsb.columbia.edu Published On :: Fri, 28 Feb 2020 21:54:41 +0000 Leadership Operations Thursday, February 27, 2020 - 16:45 NEW YORK – In 2018, the Grammy Awards faced criticism when male artists swept the most prestigious music awards – prompting Recording Academy president Neil Portnow to say the solution is for women to “step up.” But the truth is women artists have been stepping up for decades, according to research from Columbia Business School’s Professor of Business Michael Mauskapf and Associate Professor of Organizational Behavior Noah Askin. Full Article
bia Research from Columbia Business School Suggests Hypersensitivity to Coronavirus News Is Driving Market Reactions – and Vice Versa By www8.gsb.columbia.edu Published On :: Fri, 03 Apr 2020 02:46:58 +0000 Business Economics and Public Policy Capital Markets and Investments Healthcare Media and Technology Friday, April 10, 2020 - 22:45 NEW YORK – On March 11th, the Dow Jones Industrial Average plunged 1,485 points, ending the longest bull-market run in history, and sending the market into nosedive the likes of which has not been witnessed since the Great Recession. While it could take years to fully understand all of the factors that led to this recent crash, a consensus has emerged that fear of an economic downturn brought on by the coronavirus has played a large role. Full Article
bia New Research from Columbia Business School Shows Radical Changes in Household Spending Habits During COVID-19 Epidemic By www8.gsb.columbia.edu Published On :: Tue, 28 Apr 2020 18:37:51 +0000 Business Economics and Public Policy Operations Risk Management Tuesday, April 28, 2020 - 14:30 Study provides first real-time view into household consumption during outbreak in U.S., showing an initial sharp increase in key categories, followed by a sharp decrease in overall spending Full Article
bia Minimum energy requirements for microbial communities to live predicted By www.eurekalert.org Published On :: Wed, 06 May 2020 00:00:00 EDT (University of Warwick) A microbial community is a complex, dynamic system composed of hundreds of species and their interactions, they are found in oceans, soil, animal guts and plant roots. Each system feeds the Earth's ecosystem and their own growth, as they each have their own metabolism that underpin biogeochemical cycles. Researchers from the School of Life Sciences at the University of Warwick have produced an extendable thermodynamic model for simulating the dynamics of microbial communities. Full Article
bia Shrinking snowcaps fuel harmful algal blooms in Arabian Sea By www.eurekalert.org Published On :: Mon, 04 May 2020 00:00:00 EDT (Earth Institute at Columbia University) A uniquely resilient organism all but unheard of in the Arabian Sea 20 years ago has been proliferating and spreading at an alarming pace. New research describes how the continued loss of snow over the Himalayan-Tibetan Plateau region is fueling the expansion of this destructive algal bloom. Full Article
bia Researchers present a microbial strain capable of massive succinic acid production By www.eurekalert.org Published On :: Wed, 06 May 2020 00:00:00 EDT (The Korea Advanced Institute of Science and Technology (KAIST)) A research team led by Distinguished Professor Sang-Yup Lee reported the production of a microbial strain capable of the massive production of succinic acid with the highest production efficiency to date. This strategy of integrating systems metabolic engineering with enzyme engineering will be useful for the production of industrially competitive bio-based chemicals. Full Article
bia New research finds racial bias in rideshare platforms By www.eurekalert.org Published On :: Wed, 06 May 2020 00:00:00 EDT (Institute for Operations Research and the Management Sciences) New research to be published in the INFORMS journal Management Science has found popular rideshare platforms exhibit racial and other biases that penalize under-represented minorities and others seeking to use their services. Full Article
bia Columbia-Harlem Small Business Development Center Is a Lifeline for Business Owners By www8.gsb.columbia.edu Published On :: Tue, 28 Apr 2020 00:00:00 -0400 The SBDC offers resources and guidance to Harlem’s small businesses amidst the COVID-19 crisis. Full Article
bia Schnyder corneal dystrophy-associated UBIAD1 is defective in MK-4 synthesis and resists autophagy-mediated degradation By feedproxy.google.com Published On :: 2020-05-01 Dong-Jae JunMay 1, 2020; 61:746-757Research Articles Full Article
bia Schnyder corneal dystrophy-associated UBIAD1 is defective in MK-4 synthesis and resists autophagy-mediated degradation [Research Articles] By feedproxy.google.com Published On :: 2020-05-01T00:05:27-07:00 The autosomal dominant disorder Schnyder corneal dystrophy (SCD) is caused by mutations in UbiA prenyltransferase domain-containing protein-1 (UBIAD1), which uses geranylgeranyl pyrophosphate (GGpp) to synthesize the vitamin K2 subtype menaquinone-4 (MK-4). SCD is characterized by opacification of the cornea, owing to aberrant build-up of cholesterol in the tissue. We previously discovered that sterols stimulate association of UBIAD1 with ER-localized HMG-CoA reductase, which catalyzes a rate-limiting step in the synthesis of cholesterol and nonsterol isoprenoids, including GGpp. Binding to UBIAD1 inhibits sterol-accelerated ER-associated degradation (ERAD) of reductase and permits continued synthesis of GGpp in cholesterol-replete cells. GGpp disrupts UBIAD1-reductase binding and thereby allows for maximal ERAD of reductase as well as ER-to-Golgi translocation of UBIAD1. SCD-associated UBIAD1 is refractory to GGpp-mediated dissociation from reductase and remains sequestered in the ER to inhibit ERAD. Here, we report development of a biochemical assay for UBIAD1-mediated synthesis of MK-4 in isolated membranes and intact cells. Using this assay, we compared enzymatic activity of WT UBIAD1 with that of SCD-associated variants. Our studies revealed that SCD-associated UBIAD1 exhibited reduced MK-4 synthetic activity, which may result from its reduced affinity for GGpp. Sequestration in the ER protects SCD-associated UBIAD1 from autophagy and allows intracellular accumulation of the mutant protein, which amplifies the inhibitory effect on reductase ERAD. These findings have important implications not only for the understanding of SCD etiology but also for the efficacy of cholesterol-lowering statin therapy, which becomes limited, in part, because of UBIAD1-mediated inhibition of reductase ERAD. Full Article
bia Longitudinal Analysis of Serum Cytokine Levels and Gut Microbial Abundance Links IL-17/IL-22 with Clostridia and Insulin Sensitivity in Humans By diabetes.diabetesjournals.org Published On :: 2020-05-04T10:07:04-07:00 Recent studies using mouse models suggest that interaction between the gut microbiome and IL-17/IL-22 producing cells plays a role in the development of metabolic diseases. We investigated this relationship in humans using data from the prediabetes study of the Integrated Human Microbiome Project (iHMP). Specifically, we addressed the hypothesis that early in the onset of metabolic diseases there is a decline in serum levels of IL-17/IL-22, with concomitant changes in the gut microbiome. Clustering iHMP study participants on the basis of longitudinal IL-17/IL-22 profiles identified discrete groups. Individuals distinguished by low levels of IL-17/IL-22 were linked to established markers of metabolic disease, including insulin sensitivity. These individuals also displayed gut microbiome dysbiosis, characterized by decreased diversity, and IL-17/IL-22-related declines in the phylum Firmicutes, class Clostridia, and order Clostridiales. This ancillary analysis of the iHMP data therefore supports a link between the gut microbiome, IL-17/IL-22 and the onset of metabolic diseases. This raises the possibility for novel, microbiome-related therapeutic targets that may effectively alleviate metabolic diseases in humans as they do in animal models. Full Article
bia LGBT India Tours| Gay Lesbian Tour | Gay Travel Packages By investing.96.lt Published On :: Thu, 24 Aug 2017 09:06:53 UTC LGBT India Tours offers best and full assurance services to the gay, lesbian and LGBT clients at affordable rates for reveling holidays and tourism packages to various destinations in India. Full Article Entertainment
bia Colombian company creates bed that can double as coffin By jamaica-gleaner.com Published On :: Fri, 08 May 2020 17:15:58 -0500 BOGOTA, Colombia (AP) — A Colombian advertising company is pitching a novel, if morbid, solution to shortages of hospital beds and coffins during the coronavirus pandemic: combine them. ABC Displays has created a cardboard bed with metal... Full Article
bia Cancer drug trials used for regulatory approval are at risk of bias By feeds.bmj.com Published On :: Thu, 19 Sep 2019 14:09:14 +0000 Around half of trials that supported new cancer drug approvals in Europe between 2014 and 2016 were judged to be at high risk of bias, in a new study. Huseyin Naci,assistant professor of health policy a the London School of Economics joins us to talk about why potential bias may mean potential exaggeration of treatment effects, and could be... Full Article
bia As Colombia Emerges from Decades of War, Migration Challenges Mount By www.migrationpolicy.org Published On :: Wed, 12 Apr 2017 10:06:18 -0400 Colombia has more internally displaced persons (IDPs) than any other country in the world, the result of a 52-year civil war. Beyond improving the lives of its 7.3 million IDPs, the country faces a number of crucial migration issues as it works to achieve stability in the wake of an historic peace accord signed in late 2016. This country profile examines historical trends and current and future migration challenges in Colombia. Full Article
bia Lower Risk of Death With SGLT2 Inhibitors in Observational Studies: Real or Bias? By care.diabetesjournals.org Published On :: 2018-01-01 Samy SuissaJan 1, 2018; 41:6-10Perspectives in Care Full Article
bia Global warming fuels algal bloom disrupting fisheries in Arabian Sea By www.upi.com Published On :: Mon, 04 May 2020 14:47:01 -0400 A new scientific study published Monday found that global warming is fueling a destructive algal bloom that is disrupting fisheries in the Arabian sea. Full Article
bia Two Views of the Same News Find Opposite Biases By www.washingtonpost.com Published On :: Mon, 24 Jul 2006 00:00:00 EDT You could be forgiven for thinking the television images in the experiment were from 2006. They were really from 1982: Israeli forces were clashing with Arab militants in Lebanon. The world was watching, charges were flying, and the air was thick with grievance, hurt and outrage. Full Article Nation Two Views of the Same News Find Opposite Biases
bia Iraq War Naysayers May Have Hindsight Bias By www.washingtonpost.com Published On :: Mon, 02 Oct 2006 00:00:00 EDT Antiwar liberals last week got to savor the four most satisfying words in the English language: "I told you so." Full Article Opinions Iraq War Naysayers May Have Hindsight Bias
bia The Color of Health Care: Diagnosing Bias in Doctors By www.washingtonpost.com Published On :: Mon, 13 Aug 2007 00:00:00 EDT Long before word recently broke that white referees in the National Basketball Association were calling fouls at a higher rate on black athletes than on white athletes, and long before studies found racial disparities in how black and white applicants get called for job interviews, researchers no... Full Article Opinions The Color of Health Care: Diagnosing Bias in Doctors
bia Hillary Clinton and the Action Bias By www.washingtonpost.com Published On :: Mon, 31 Mar 2008 00:00:00 EDT On Oct. 10, 2002, Hillary Rodham Clinton stood in the Senate to explain why she was authorizing President Bush to use force against Iraq: "In balancing the risks of action versus inaction, I think New Yorkers who have gone through the fires of hell may be more attuned to the risk of not acting. I... Full Article Opinions Hillary Clinton and the Action Bias
bia The Colombian Response to the Venezuelan Migration Crisis: A Dialogue with Colombia’s Migration Czar By www.migrationpolicy.org Published On :: Wed, 18 Sep 2019 15:40:54 -0400 Felipe Muñoz, Advisor to the President of Colombia for the Colombian-Venezuelan Border, discusses how Colombia is coping with the influx of Venezuelan migrants, plans for future policy decisions surrounding this migration, and developments in regional and international cooperation. Full Article
bia Welcome Wears Thin for Colombians in Ecuador as Venezuelans Become More Visible By www.migrationpolicy.org Published On :: Wed, 08 Jan 2020 19:31:49 -0500 Though Colombians displaced by a decades-long civil war found a welcome refuge in Ecuador, life has become more difficult for them in recent years, in part as a result of the influx of Venezuelans seeking safety. This article draws on surveys of migrants in Quito, comparing and contrasting the experiences of Colombians and Venezuelans, and assessing their perceptions of discrimination, victimization, trust in institutions, and hopes for the future. Full Article
bia La Bienvenida Se Agota para Colombianos en Ecuador Mientras Venezolanos Se Hacen Más Visibles By www.migrationpolicy.org Published On :: Thu, 09 Jan 2020 10:42:56 -0500 Aunque colombianos encontraron un refugio cálido en Ecuador después de ser desplazados de su país por una guerra civil que duro décadas, la vida se ha vuelto más difícil para ellos en los últimos años, en parte como resultado del flujo de venezolanos que buscan seguridad. Este artículo se basa en encuestas de migrantes en Quito, comparando y contrastando las experiencias de colombianos y venezolanos, y evaluando sus percepciones de discriminación, victimización y esperanzas para el futuro. Full Article
bia The Colombian Response to the Venezuelan Migration Crisis: A Dialogue with Colombia’s Migration Czar By www.migrationpolicy.org Published On :: Mon, 30 Sep 2019 19:29:42 -0400 Felipe Muñoz, Advisor to the President of Colombia for the Colombian-Venezuelan Border, discusses how Colombia is coping with the influx of Venezuelan migrants, plans for future policy decisions surrounding this migration, and developments in regional and international cooperation. Full Article
bia 12 Cognitive Biases E-commerce Marketers Need to Know By feeds.feedblitz.com Published On :: Tue, 26 Nov 2019 12:05:15 +0000 Understand how customer brains work - these are the most important cognitive biases for e-commerce marketers. The post 12 Cognitive Biases E-commerce Marketers Need to Know appeared first on Neuromarketing. Full Article Neuromarketing Cognitive Biases conversion optimization cro e-commerce machine learning user experience website experiments
bia Publication Bias And Lockdown Memories: The Week’s Best Psychology Links By feedproxy.google.com Published On :: Fri, 01 May 2020 13:48:44 +0000 Our weekly round-up of the best psychology coverage from elsewhere on the web Full Article Weekly links
bia Invisible women : exposing data bias in a world designed for men / Caroline Criado Perez. By www.catalog.slsa.sa.gov.au Published On :: Sex discrimination against women. Full Article
bia Doubts of hydrophobia, as a specific disease, to be communicated by the bite of a dog ; with experiments on the supposed virus generated in that animal during the complaint termed madness ... / by Robert White. By feedproxy.google.com Published On :: London : printed for Knight and Lacey, 1826. Full Article
bia The empress Zenobia is brought as a prisoner before the Roman emperor Aurelian. Photograph after J. van Egmont. By feedproxy.google.com Published On :: Full Article
bia NHL offered place to play in British Columbia By sports.yahoo.com Published On :: Thu, 07 May 2020 13:36:22 GMT The NHL suspended its season March 12 with 189 regular-season games left. Full Article article Sports
bia Oh Luna Fortuna : the story of how the ethics of polyamory helped my rescue dog and me heal from trauma / graphic memoir comic by Stacy Bias. By search.wellcomelibrary.org Published On :: London : Stacy Bias, 2019. Full Article
bia Bias correction in conditional multivariate extremes By projecteuclid.org Published On :: Wed, 22 Apr 2020 04:02 EDT Mikael Escobar-Bach, Yuri Goegebeur, Armelle Guillou. Source: Electronic Journal of Statistics, Volume 14, Number 1, 1773--1795.Abstract: We consider bias-corrected estimation of the stable tail dependence function in the regression context. To this aim, we first estimate the bias of a smoothed estimator of the stable tail dependence function, and then we subtract it from the estimator. The weak convergence, as a stochastic process, of the resulting asymptotically unbiased estimator of the conditional stable tail dependence function, correctly normalized, is established under mild assumptions, the covariate argument being fixed. The finite sample behaviour of our asymptotically unbiased estimator is then illustrated on a simulation study and compared to two alternatives, which are not bias corrected. Finally, our methodology is applied to a dataset of air pollution measurements. Full Article
bia Asymptotic seed bias in respondent-driven sampling By projecteuclid.org Published On :: Wed, 08 Apr 2020 22:01 EDT Yuling Yan, Bret Hanlon, Sebastien Roch, Karl Rohe. Source: Electronic Journal of Statistics, Volume 14, Number 1, 1577--1610.Abstract: Respondent-driven sampling (RDS) collects a sample of individuals in a networked population by incentivizing the sampled individuals to refer their contacts into the sample. This iterative process is initialized from some seed node(s). Sometimes, this selection creates a large amount of seed bias. Other times, the seed bias is small. This paper gains a deeper understanding of this bias by characterizing its effect on the limiting distribution of various RDS estimators. Using classical tools and results from multi-type branching processes [12], we show that the seed bias is negligible for the Generalized Least Squares (GLS) estimator and non-negligible for both the inverse probability weighted and Volz-Heckathorn (VH) estimators. In particular, we show that (i) above a critical threshold, VH converge to a non-trivial mixture distribution, where the mixture component depends on the seed node, and the mixture distribution is possibly multi-modal. Moreover, (ii) GLS converges to a Gaussian distribution independent of the seed node, under a certain condition on the Markov process. Numerical experiments with both simulated data and empirical social networks suggest that these results appear to hold beyond the Markov conditions of the theorems. Full Article