Negative / Null Result ReportSocial Sciences
Joakim Karlsen, Eirik Stavelin · 2013 · Journalism Practice
This article examines computational journalism as a craft practised in Norwegian newsrooms. Based on in-depth interviews with expert practitioners in six of the largest newsrooms in Norway, we find that computational journalism represents…
View details →Negative / Null Result ReportOpen accessSocial Sciences
Isabel Fernandez‐Mateo, Roberto M. Fernandez · 2016 · Management Science
We study the sources of women’s underrepresentation in hiring for top management jobs by focusing on the context of executive search. Using data that include proprietary information on 10,970 individuals considered by a search firm, we…
View details →Negative / Null Result ReportPsychology
Ted A. Paterson, P. D. Harms, Piers Steel et al. · 2015 · Journal of Leadership & Organizational Studies
This study compiles information from more than 250 meta-analyses conducted over the past 30 years to assess the magnitude of reported effect sizes in the organizational behavior (OB)/human resources (HR) literatures. Our analysis revealed…
View details →Negative / Null Result ReportOpen accessSocial Sciences
Hanne Fjelde, Lisa Hultman · 2013 · Journal of Conflict Resolution
While case-based narratives from civil wars often stress the ethnic dimension of civilian atrocities, cross-national studies have found limited evidence in support of such contentions. Addressing this debate, we argue that warring actors…
View details →Negative / Null Result ReportOpen accessMedicine
Nevert Badreldin, William A. Grobman, Lynn M. Yee · 2019 · Obstetrics and Gynecology
OBJECTIVE: To evaluate racial and ethnic differences in women's postpartum pain scores, inpatient opioid administration, and discharge opioid prescriptions. METHODS: We conducted a retrospective cohort study of all deliveries at a single…
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Liangju Zhao, Lixin Wang, Lucas A. Cernusak et al. · 2016 · Plant Cell & Environment
Deuterium depletions between stem water and source water have been observed in coastal halophyte plants and in multiple species under greenhouse conditions. However, the location(s) of the isotope fractionation is not clear yet and it is…
View details →Negative / Null Result ReportOpen accessMedicine
Alisa J. Prager, Nina Martinez, Kathryn Beal et al. · 2015 · American Journal of Neuroradiology
BACKGROUND AND PURPOSE: Treatment-related changes and recurrent tumors often have overlapping features on conventional MR imaging. The purpose of this study was to assess the utility of DWI and DSC perfusion imaging alone and in combination to differentiate treatment-related effects and recurrent high-grade gliomas. MATERIALS AND METHODS: We retrospectively identified 68 consecutive patients with high-grade gliomas treated by surgical resection followed by radiation therapy and temozolomide, who then developed increasing enhancing mass lesions indeterminate for treatment-related changes versus
View details →Negative / Null Result ReportBiochemistry, Genetics and Molecular Biology
Halvor Knutsen, Esben Moland Olsen, Per Erik Jorde et al. · 2010 · Molecular Ecology
A key question in many genetic studies on marine organisms is how to interpret a low but statistically significant level of genetic differentiation. Do such observations reflect a real phenomenon, or are they caused by confounding factors…
View details →Negative / Null Result ReportOpen accessMedicine
F. Perry Wilson, Melissa Martin, Yu Yamamoto et al. · 2021 · BMJ
Abstract Objective To determine whether electronic health record alerts for acute kidney injury would improve patient outcomes of mortality, dialysis, and progression of acute kidney injury. Design Double blinded, multicenter, parallel,…
View details →Negative / Null Result ReportEnvironmental Science
Bettina Julin, Alicja Wolk, Leif Bergkvist et al. · 2012 · Cancer Research
The ubiquitous food contaminant cadmium has features of an estrogen mimetic that may promote the development of estrogen-dependent malignancies, such as breast cancer. However, no prospective studies of cadmium exposure and breast cancer…
View details →Negative / Null Result ReportOpen accessMedicine
US Preventive Services Task Force, Douglas K Owens, Karina W. Davidson et al. · 2019 · JAMA
Importance: Breast cancer is the most common nonskin cancer among women in the United States and the second leading cause of cancer death. The median age at diagnosis is 62 years, and an estimated 1 in 8 women will develop breast cancer at…
View details →Negative / Null Result ReportBusiness, Management and Accounting
Sean Lewis-Faupel, Yusuf Neggers, Benjamin Olken et al. · 2016 · American Economic Journal Economic Policy
This paper examines whether electronic procurement (e-procurement), which increases access to information and reduces personal interactions with potentially corrupt officials, improves procurement outcomes. We develop unique datasets from…
View details →Negative / Null Result ReportMedicine
Lee Fong Ling, Thomas H. Marwick, Demetrio Roland Flores et al. · 2013 · Circulation Cardiovascular Imaging
BACKGROUND: Although the recent surgical treatment of ischemic heart failure substudy reported that revascularization of viable myocardium did not improve survival, these results were limited by the viability imaging technique used and the…
View details →Negative / Null Result ReportMedicine
Tony Mok, Sang‐We Kim, Yi‐Long Wu et al. · 2017 · Journal of Clinical Oncology
Purpose The Iressa Mutation-Positive Multicentre Treatment Beyond ProgRESsion Study (IMPRESS) compared the continuation of gefitinib plus chemotherapy with placebo plus chemotherapy in patients with epidermal growth factor receptor ( EGFR)…
View details →Negative / Null Result ReportOpen accessMedicine
Elena Myasoedova, Cynthia S. Crowson, Carl Turesson et al. · 2011 · The Journal of Rheumatology
OBJECTIVE: To assess incidence and mortality effects of extraarticular rheumatoid arthritis (ExRA) in patients with incident RA in 1995-2007 compared to 1985-1994, in Olmsted County, Minnesota, USA. METHODS: Data on incident ExRA were…
View details →Negative / Null Result ReportOpen accessMedicine
Benjamin Gravesteijn, Daan Nieboer, Ari Ercole et al. · 2020 · Journal of Clinical Epidemiology
OBJECTIVE: We aimed to explore the added value of common machine learning (ML) algorithms for prediction of outcome for moderate and severe traumatic brain injury. STUDY DESIGN AND SETTING: We performed logistic regression (LR), lasso…
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Maximilian Larter, Sebastian Pfautsch, Jean‐Christophe Domec et al. · 2017 · New Phytologist
Summary Xylem vulnerability to embolism is emerging as a major factor in drought‐induced tree mortality events across the globe. However, we lack understanding of how and to what extent climate has shaped vascular properties or functions.…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Kirk E. Lohmueller · 2014 · PLoS Genetics
Population genetic studies have found evidence for dramatic population growth in recent human history. It is unclear how this recent population growth, combined with the effects of negative natural selection, has affected patterns of deleterious variation, as well as the number, frequency, and effect sizes of mutations that contribute risk to complex traits. Because researchers are performing exome sequencing studies aimed at uncovering the role of low-frequency variants in the risk of complex traits, this topic is of critical importance. Here I use simulations under population genetic models
View details →Negative / Null Result ReportOpen accessComputer Science
Gintare Karolina Dziugaite, Daniel M. Roy, Zoubin Ghahramani · 2015 · arXiv (Cornell University)
We consider training a deep neural network to generate samples from an unknown distribution given i.i.d. data. We frame learning as an optimization minimizing a two-sample test statistic---informally speaking, a good generator network…
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Jos M. Milner, Floris M. van Beest, Karoline T. Schmidt et al. · 2014 · Journal of Wildlife Management
ABSTRACT Ungulate populations are important natural resources, associated with both costs and benefits. Conflicts have arisen between stakeholders who benefit from high ungulate numbers and those faced with the costs. Supplementary or…
View details →Negative / Null Result ReportSocial Sciences
John Tang, Gina Venolia, Kori Inkpen · 2016
We conducted a mixed methods study of the use of the Meerkat and Periscope apps for live streaming video and audio broadcasts from a mobile device. We crowdsourced a task to describe the content, setting, and other characteristics of 767…
View details →Negative / Null Result ReportEconomics, Econometrics and Finance
Tyler R. Henry, Jennifer L. Koski · 2010 · Review of Financial Studies
We use daily short-selling data to examine whether short selling around seasoned equity offerings (SEOs) reflects informed or manipulative trading. Around SEO announcements, we find no evidence of informed short selling. Around issue…
View details →Negative / Null Result ReportOpen accessAgricultural and Biological Sciences
Hojun Song, Olivier Béthoux, Seunggwan Shin et al. · 2020 · Nature Communications
Acoustic communication is enabled by the evolution of specialised hearing and sound producing organs. In this study, we performed a large-scale macroevolutionary study to understand how both hearing and sound production evolved and affected diversification in the insect order Orthoptera, which includes many familiar singing insects, such as crickets, katydids, and grasshoppers. Using phylogenomic data, we firmly establish phylogenetic relationships among the major lineages and divergence time estimates within Orthoptera, as well as the lineage-specific and dynamic patterns of evolution for hea
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Jonathan Bennie, Thomas W. Davies, David Cruse et al. · 2015 · Philosophical Transactions of the Royal Society B Biological Sciences
Artificial light at night has a wide range of biological effects on both plants and animals. Here, we review mechanisms by which artificial light at night may restructure ecological communities by modifying the interactions between species. Such mechanisms may be top-down (predator, parasite or grazer controlled), bottom-up (resource-controlled) or involve non-trophic processes, such as pollination, seed dispersal or competition. We present results from an experiment investigating both top-down and bottom-up effects of artificial light at night on the population density of pea aphids Acyrthosi
View details →Negative / Null Result ReportOpen accessSocial Sciences
Ullrich K. H. Ecker, Ziggy O’Reilly, Jesse S. Reid et al. · 2019 · British Journal of Psychology
Fact-checking has become an important feature of the modern media landscape. However, it is unclear what the most effective format of fact-checks is. Some have argued that simple retractions that repeat a false claim and tag it as false…
View details →Negative / Null Result ReportEnvironmental Science
Merritt R. Turetsky, Michelle C. Mack, Teresa N. Hollingsworth et al. · 2010 · Canadian Journal of Forest Research
Shifts in moss communities may affect the resilience of boreal ecosystems to a changing climate because of the role of moss species in regulating soil climate and biogeochemical cycling. Here, we use long-term data analysis and literature…
View details →Negative / Null Result ReportOpen accessMedicine
Stephan Willems, Roland Richard Tilz, Daniel Steven et al. · 2020 · Circulation
Background: Catheter ablation for ventricular tachycardia (VT) reduces the recurrence of VT in patients with implantable cardioverter-defibrillators (ICDs). The appropriate timing of VT ablation and its effects on mortality and heart…
View details →Negative / Null Result ReportOpen accessBusiness, Management and Accounting
Ella Mae Matsumura, Rachna Prakash, Sandra C. Vera‐Muñoz · 2022 · Review of Accounting Studies
Abstract Managers are required to disclose material climate risk in Form 10-K, but their decision whether or not to disclose is confounded by the lack of consensus on whether climate risk is material to the firms, as well as uncertainty about enforcement of disclosure regulations. Using the SASB Materiality Map™ to proxy for market expectations of climate risk materiality, we test whether the association between disclosing climate risk in 10-Ks and firm risk (proxied by cost of equity (COE)) varies with market expectations of climate risk materiality. Using S&P 500 firms’ decisions whether
View details →Negative / Null Result ReportEconomics, Econometrics and Finance
Ahmet Köseoğlu, Ali Gökhan Yücel, Recep Ulucak · 2022 · Sustainable Development
Abstract The ecological pressure of humanity on the planet measured by ecological footprint has been enlarging, which upsurges environmental threats. At this point, green innovation emerges as an optimal solution to sustainable development…
View details →Negative / Null Result ReportOpen accessMedicine
Adam M. Lee, Qian Shi, Emily S. Pavey et al. · 2014 · JNCI Journal of the National Cancer Institute
BACKGROUND: Previous studies have suggested the potential importance of three DPYD variants (DPYD*2A, D949V, and I560S) with increased 5-FU toxicity. Their individual associations, however, in 5-FU-based combination therapies, remain…
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