Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance
Lu Liu, En‐Ze Wang, Chien‐Chiang Lee · 2020 · Energy RESEARCH LETTERS
This research explores the interaction among the COVID-19 pandemic, crude oil market and stock market in the U.S. by utilizing a time-varying parameter vector autoregression (TVP-VAR) model. Our results indicate that there is a negative connection between crude oil returns and stock returns. Interestingly, contrary to our intuition, we find that the COVID-19 pandemic cannot exert a negative effect but has a statistically significantly positive effect on crude oil returns and stock returns.
View details →Negative / Null Result ReportOpen accessNeuroscience
Marc-André Schulz, B.T. Thomas Yeo, Joshua T Vogelstein et al. · 2020 · Nature Communications
Recently, deep learning has unlocked unprecedented success in various domains, especially using images, text, and speech. However, deep learning is only beneficial if the data have nonlinear relationships and if they are exploitable at available sample sizes. We systematically profiled the performance of deep, kernel, and linear models as a function of sample size on UKBiobank brain images against established machine learning references. On MNIST and Zalando Fashion, prediction accuracy consistently improves when escalating from linear models to shallow-nonlinear models, and further improves w
View details →Negative / Null Result ReportOpen accessNeuroscience
Mante S. Nieuwland, Stephen Politzer‐Ahles, Evelien Heyselaar et al. · 2018 · eLife
Do people routinely pre-activate the meaning and even the phonological form of upcoming words? The most acclaimed evidence for phonological prediction comes from a 2005 Nature Neuroscience publication by DeLong, Urbach and Kutas, who observed a graded modulation of electrical brain potentials (N400) to nouns and preceding articles by the probability that people use a word to continue the sentence fragment (‘cloze’). In our direct replication study spanning 9 laboratories (N=334), pre-registered replication-analyses and exploratory Bayes factor analyses successfully replicated the noun-results
View details →Negative / Null Result ReportOpen accessNeuroscience
Katarzyna Jednoróg, Irène Altarelli, Karla Monzalvo et al. · 2012 · PLoS ONE
Children's cognitive abilities and school achievements are deeply affected by parental socioeconomic status (SES). Numerous studies have reported lower cognitive performance in relation to unfavorable environments, but little is known about the effects of SES on the child's neural structures. Here, we systematically explore the association between SES and brain anatomy through MRI in a group of 23 healthy 10-year-old children with a wide range of parental SES. We confirm behaviorally that language is one of the cognitive domains most affected by SES. Furthermore, we observe widespread modifica
View details →Negative / Null Result ReportOpen accessEarth and Planetary Sciences
Jessica E. Tierney, Martin P. Tingley · 2018 · Paleoceanography and Paleoclimatology
Abstract The alkenone‐based U proxy is a cornerstone of paleoclimatology, providing insight into the temperature history of the Earth's surface ocean. Although the relationship between U and sea surface temperatures (SSTs) is robust and…
View details →Negative / Null Result ReportOpen accessPhysics and Astronomy
Roberto Decarli, Fabian Walter, Bram P. Venemans et al. · 2018 · The Astrophysical Journal
Abstract We present a survey of the [C ii ] 158 μ m line and underlying far-infrared (FIR) dust continuum emission in a sample of 27 quasars using the Atacama Large Millimeter Array (ALMA) at resolution. The [C ii ] line was significantly…
View details →Negative / Null Result ReportMedicine
T.J. Bonner, William Eardley, Paul R. Patterson et al. · 2011 · Journal of Bone and Joint Surgery - British Volume
Correct positioning and alignment of components during primary total knee replacement (TKR) is widely accepted to be an important predictor of patient satisfaction and implant durability. This retrospective study reports the effect of the…
View details →Negative / Null Result ReportOpen accessSocial Sciences
David Cesarini, Erik Lindqvist, Robert Östling et al. · 2016 · The Quarterly Journal of Economics
Abstract We use administrative data on Swedish lottery players to estimate the causal impact of substantial wealth shocks on players’ own health and their children’s health and developmental outcomes. Our estimation sample is large,…
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Paul J. Ferraro, Merlin M. Hanauer, Katharine R. E. Sims · 2011 · Proceedings of the National Academy of Sciences
Protected areas are the dominant approach to protecting biodiversity and the supply of ecosystem services. Because these protected areas are often placed in regions with widespread poverty and because they can limit agricultural…
View details →Negative / Null Result ReportOpen accessMedicine
Dania Abdul Razzak Kouider, Nageeb Hassan, Yaser Mohammed Al‐Worafi · 2019 · Biomedical Research
Objectives: The aim of this study was to explore the association between vitamin D deficiency and depression among university students and to identify the factors affecting this association. Methodology: A cross-sectional study was…
View details →Negative / Null Result ReportBusiness, Management and Accounting
Hui Tong, Shang‐Jin Wei · 2010 · Review of Financial Studies
This article studies whether the volume and composition of capital flows affect the degree of credit crunch during the 2007–2009 crisis. Using data on 3,823 firms in 24 emerging countries, we find that, on average, the decline in stock…
View details →Negative / Null Result ReportPsychology
Pål-Ørjan Johansen, Teri Suzanne Krebs · 2015 · Journal of Psychopharmacology
A recent large population study of 130,000 adults in the United States failed to find evidence for a link between psychedelic use (lysergic acid diethylamide, psilocybin or mescaline) and mental health problems. Using a new data set…
View details →Negative / Null Result ReportOpen accessMedicine
Trevor Scobey, Boyd L. Yount, Amy Sims et al. · 2013 · Proceedings of the National Academy of Sciences
Severe acute respiratory syndrome with high mortality rates (~50%) is associated with a novel group 2c betacoronavirus designated Middle East respiratory syndrome coronavirus (MERS-CoV). We synthesized a panel of contiguous cDNAs that…
View details →Negative / Null Result ReportOpen accessBusiness, Management and Accounting
Elizabeth Blankespoor, ED DEHAAN, John E. Wertz et al. · 2018 · Journal of Accounting Research
ABSTRACT We investigate the frictions that impede individual investors’ use of accounting information and, in particular, their costs of monitoring and acquiring accounting disclosures. We do so using an archival setting in which…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Gemma C. Sharp, Debbie A. Lawlor, Rebecca C. Richmond et al. · 2015 · International Journal of Epidemiology
BACKGROUND: Evidence suggests that in utero exposure to undernutrition and overnutrition might affect adiposity in later life. Epigenetic modification is suggested as a plausible mediating mechanism. METHODS: We used multivariable linear…
View details →Negative / Null Result ReportSocial Sciences
Timothy Frye, Scott Gehlbach, Kyle L. Marquardt et al. · 2016 · Post-Soviet Affairs
Vladimir Putin has managed to achieve strikingly high public approval ratings throughout his time as president and prime minister of Russia. But is his popularity real, or are respondents lying to pollsters? We conducted a series of list…
View details →Negative / Null Result ReportOpen accessSocial Sciences
Doo Hun Lim, Michael L. Morris, Virginia W. Kupritz · 2019 · Online Learning
This study investigates differences in instructional and learner factors between two groups of learners exposed to online only and blended delivery formats, respectively, in an effort to compare learning outcomes and other instructional variables between online and blended delivery methods. Findings indicated that no significant differences existed in learning outcomes; however, significant differences existed in several instructional and learner factors between the two delivery format groups. Discussions about improving online or blended delivery method are presented based upon the research f
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Christopher S. Carlson, Tara C. Matise, Kari E. North et al. · 2013 · PLoS Biology
The vast majority of genome-wide association study (GWAS) findings reported to date are from populations with European Ancestry (EA), and it is not yet clear how broadly the genetic associations described will generalize to populations of diverse ancestry. The Population Architecture Using Genomics and Epidemiology (PAGE) study is a consortium of multi-ancestry, population-based studies formed with the objective of refining our understanding of the genetic architecture of common traits emerging from GWAS. In the present analysis of five common diseases and traits, including body mass index, ty
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Jessica E. Tierney, Nerilie J. Abram, Kevin J. Anchukaitis et al. · 2015 · Paleoceanography
Abstract Most annually resolved climate reconstructions of the Common Era are based on terrestrial data, making it a challenge to independently assess how recent climate changes have affected the oceans. Here as part of the Past Global…
View details →Negative / Null Result ReportNeuroscience
Jon Sprouse, Matthew Wagers, Colin Phillips · 2012 · Language
The source of syntactic island effects has been a topic of considerable debate within linguistics and psycholinguistics. Explanations fall into three basic categories: grammatical theories, which posit specific grammatical constraints that…
View details →Negative / Null Result ReportOpen accessEngineering
Ming‐Huwi Horng, Chan‐Pang Kuok, Min-Jun Fu et al. · 2019 · Computational and Mathematical Methods in Medicine
Scoliosis is a common spinal condition where the spine curves to the side and thus deforms the spine. Curvature estimation provides a powerful index to evaluate the deformation severity of scoliosis. In current clinical diagnosis, the standard curvature estimation method for assessing the curvature quantitatively is done by measuring the Cobb angle, which is the angle between two lines, drawn perpendicular to the upper endplate of the uppermost vertebra involved and the lower endplate of the lowest vertebra involved. However, manual measurement of spine curvature requires considerable time and
View details →Negative / Null Result ReportSocial Sciences
Ruben Durante, Brian Knight · 2012 · Journal of the European Economic Association
This paper examines whether and how viewers respond to changes in partisan bias in media news. We use data from Italy, where the main private television network is owned by Silvio Berlusconi, the leader of the center-right coalition, and…
View details →Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance
Christina Romer, David Romer · 2017 · American Economic Review
This paper examines the aftermath of postwar financial crises in advanced countries. We construct a new semiannual series on financial distress in 24 OECD countries for the period 1967–2012. The series is based on assessments of the health…
View details →Negative / Null Result ReportMedicine
Ronald B. Natale, Sumitra Thongprasert, F. Anthony Greco et al. · 2011 · Journal of Clinical Oncology
PURPOSE: Vandetanib is a once-daily oral inhibitor of vascular endothelial growth factor receptor and epidermal growth factor receptor signaling. This phase III study assessed the efficacy of vandetanib versus erlotinib in unselected…
View details →Negative / Null Result ReportMedicine
Andrew J. Coldman, Norm Phillips, Christine Wilson et al. · 2014 · JNCI Journal of the National Cancer Institute
BACKGROUND: Screening with mammography has been shown by randomized controlled trials to reduce breast cancer mortality in women aged 40 to 74 years. Estimates from observational studies following screening implementation in different…
View details →Negative / Null Result ReportOpen accessAgricultural and Biological Sciences
Katherine A. Orford, Ian P. Vaughan, Jane Memmott · 2015 · Proceedings of the Royal Society B Biological Sciences
Bees, hoverflies and butterflies are taxa frequently studied as pollinators in agricultural and conservation contexts. Although there are many records of non-syrphid Diptera visiting flowers, they are generally not regarded as important…
View details →Negative / Null Result ReportOpen accessEngineering
R. Quentin Grafton, Michael Ward, Hang To et al. · 2011 · Water Resources Research
Household survey data for 10 countries are used to quantify and test the importance of price and nonprice factors on residential water demand and investigate complementarities between household water‐saving behaviors and the average…
View details →Negative / Null Result ReportMedicine
Stephen D. Silberstein, David W. Dodick, Joel R. Saper et al. · 2012 · Cephalalgia
BACKGROUND: Chronic migraine (CM) is a debilitating neurological disorder with few treatment options. Peripheral nerve stimulation (PNS) of the occipital nerves is a potentially promising therapy for CM patients. METHODS: In this…
View details →Negative / Null Result ReportBusiness, Management and Accounting
John Daniel Eshleman, Peng Guo · 2014 · Auditing A Journal of Practice & Theory
SUMMARY: Recent research suggests that Big 4 auditors do not provide higher audit quality than other auditors, after controlling for the endogenous choice of auditor. We re-examine this issue using the incidence of accounting restatements…
View details →Negative / Null Result ReportOpen accessMathematics
Olga Demler, Michael Pencina, Ralph B. D’Agostino · 2012 · Statistics in Medicine
The area under the receiver operating characteristics curve (AUC of ROC) is a widely used measure of discrimination in risk prediction models. Routinely, the Mann-Whitney statistics is used as an estimator of AUC, while the change in AUC…
View details →