Negative / Null Result ReportOpen accessDecision Sciences
Felix Chopra, Ingar Haaland, Christopher Roth et al. · 2023 · The Economic Journal
Abstract We examine how the evaluation of research studies in economics depends on whether a study yielded a null result. Studies with null results are perceived to be less publishable, of lower quality, less important and less precisely…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Urko M. Marigorta, Óscar Lao, Ferrán Casals et al. · 2011 · BMC Genomics
BACKGROUND: Searching for associations between genetic variants and complex diseases has been a very active area of research for over two decades. More than 51,000 potential associations have been studied and published, a figure that keeps increasing, especially with the recent explosion of array-based Genome-Wide Association Studies. Even if the number of true associations described so far is high, many of the putative risk variants detected so far have failed to be consistently replicated and are widely considered false positives. Here, we focus on the world-wide patterns of replicability of
View details →Negative / Null Result ReportOpen accessMathematics
Andreas Deutsch, Josué Manik Nava-Sedeño, Simon Syga et al. · 2021 · PLoS Computational Biology
Collective dynamics in multicellular systems such as biological organs and tissues plays a key role in biological development, regeneration, and pathological conditions. Collective tissue dynamics-understood as population behaviour arising from the interplay of the constituting discrete cells-can be studied with on- and off-lattice agent-based models. However, classical on-lattice agent-based models, also known as cellular automata, fail to replicate key aspects of collective migration, which is a central instance of collective behaviour in multicellular systems. To overcome drawbacks of class
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Michelle G. Pitts, Tanya Myers‐Morales, Sarah E. F. D’Orazio · 2016 · The Journal of Immunology
Type I IFN (IFN-α/β) is thought to enhance growth of the foodborne intracellular pathogen Listeria monocytogenes by promoting mechanisms that dampen innate immunity to infection. However, the type I IFN response has been studied primarily…
View details →Negative / Null Result ReportPsychology
Paul A. Jewsbury, Stephen C. Bowden · 2016 · Journal of Psychoeducational Assessment
Fluency is an important construct in clinical assessment and in cognitive taxonomies. In the Cattell–Horn–Carroll (CHC) model, Fluency is represented by several narrow factors that form a subset of the long-term memory encoding and…
View details →Negative / Null Result ReportNeuroscience
William H.B. McAuliffe · 2018 · Thinking & Reasoning
The past few decades of moral psychology research have yielded empirical anomalies for rationalist theories of moral judgments. An increasing number of psychologists and philosophers argue that these anomalies are explained well by…
View details →Negative / Null Result ReportEngineering
Matthias Langer, Ashley Hall, Zhen He et al. · 2018 · IEEE Transactions on Parallel and Distributed Systems
Many distributed deep learning systems have been published over the past few years, often accompanied by impressive performance claims. In practice these figures are often achieved in high performance computing (HPC) environments with fast…
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Frank Kreienkamp, Philip Lorenz, Tobias Geiger · 2020 · Atmosphere
Climate modelling output that was provided under the latest Coupled Model Intercomparison Project (CMIP6) shows significant changes in model-specific Equilibrium Climate Sensitivity (ECS) as compared to CMIP5. The newer versions of many…
View details →Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance
Giovanna Morelli, Marco Mele · 2020 · International Journal of Energy Economics and Policy
This study will demonstrate, through an econometric approach, the relationship among per capita GDP, CO2 emissions, and energy use in Vietnam. Using annual data for years 1970-2014, stationarity, structural breaks, Toda-Yamamoto test, Johansen and Juselius approach, and Variance decomposition have been conducted. The causality results in our analysis highlight that the presence of unidirectional causality was running from economic growth to energy consumption. This result will be significant since it supports the conservation hypothesis for the economy of Vietnam. Finally, the results of the v
View details →Negative / Null Result ReportOpen accessMedicine
Federica Albanese, Daniela Mercatelli, Luca Finetti et al. · 2021 · Neurobiology of Disease
Mutations in leucine-rich repeat kinase 2 (LRRK2) are associated with Parkinson's disease. LRRK2 modulates the autophagy-lysosome pathway (ALP), a clearance process subserving the quality control of cellular proteins and organelles. Since…
View details →Failed Experiment ReportComputer Science
Jihan Yang, Shusheng Yang, Anjali Gupta et al. · 2025
Humans possess the visual-spatial intelligence to remember spaces from sequential visual observations. However, can Multimodal Large Language Models (MLLMs) trained on million-scale video datasets also "think in space" from videos? We…
View details →Negative / Null Result ReportBiochemistry, Genetics and Molecular Biology
Guohao Xie, Glenn C Duff, L.W. Hall et al. · 2013 · Journal of Animal Science
The effects of bacitracin methylene disalicylate (BMD) and scours on the fecal microbiome, animal performance, and health were studied in Holstein bull calves. Holstein bull calves (n = 150) were obtained from a single source at 12 to 24 h…
View details →Negative / Null Result ReportOpen accessNeuroscience
Susan G. Brown, Ryan K.M. Ikeuchi, Daniel R. Lucas · 2014 · Health Psychology and Behavioral Medicine
The interaction between the behavioral and physiological immune systems provides fertile ground for research. Here, we examine the interactions between fear of disease, collectivism/individualism, disgust, visual perception and salivary…
View details →Negative / Null Result ReportOpen accessComputer Science
Kirsty Kitto, Ben Hicks, Simon Buckingham Shum · 2023 · British Journal of Educational Technology
Abstract An extraordinary amount of data is becoming available in educational settings, collected from a wide range of Educational Technology tools and services. This creates opportunities for using methods from Artificial Intelligence and…
View details →Negative / Null Result ReportOpen accessPsychology
on behalf of the Pediatric Imaging Neurocognition Genetics study, John D. Eicher, Angela Montgomery et al. · 2015 · Brain Imaging and Behavior
Dyslexia and language impairment (LI) are complex traits with substantial genetic components. We recently completed an association scan of the DYX2 locus, where we observed associations of markers in DCDC2, KIAA0319, ACOT13, and FAM65B with reading-, language-, and IQ-related traits. Additionally, the effects of reading-associated DYX3 markers were recently characterized using structural neuroimaging techniques. Here, we assessed the neuroimaging implications of associated DYX2 and DYX3 markers, using cortical volume, cortical thickness, and fractional anisotropy. To accomplish this, we examin
View details →Negative / Null Result ReportMedicine
Mikko T. Holmberg, Aleksi Tornio, Maria Paile‐Hyvärinen et al. · 2018 · Clinical Pharmacology & Therapeutics
CYP3A enzymes participate in the elimination of ticagrelor and the bioactivation of clopidogrel and prasugrel. We studied the effects of functional CYP3A genetic variants (CYP3A4*22; rs35599367 and CYP3A5*3; rs776746) on the…
View details →Failed Experiment ReportOpen accessMedicine
Huyen Tran, Tim Brighton, Andrew Grigg et al. · 2014 · British Journal of Haematology
The efficacy of a fixed-dose rituximab schedule was prospectively explored in primary/acute refractory, relapsed or chronic (platelet count >10 × 10(9) /l and ≤50 × 10(9) /l) idiopathic thrombocytopenic purpura (ITP). Patients received two…
View details →Negative / Null Result ReportOpen accessPsychology
Stijn A.H. Friederichs, Anke Oenema, Catherine Bolman et al. · 2016 · Psychology and Health
OBJECTIVE: This study explores whether a web-based physical activity (PA) intervention grounded in self-determination theory (SDT) and motivational interviewing (MI) is more effective and better appreciated than a traditional web-based PA…
View details →Negative / Null Result ReportMedicine
Xuelian He, Junhong Xia, Chunming Wang et al. · 2011 · Animal Genetics
Prolactin (encoded by PRL) is a multifunctional hormone involved in osmoregulation, reproduction, growth, development, immunomodulation, endocrine and metabolic regulation. We cloned the full-length cDNA of Asian seabass PRL, searched for…
View details →Negative / Null Result ReportOpen accessMedicine
Jianghua Zhou, Bin Wu, Wenxin Wang et al. · 2020 · World Journal of Clinical Cases
BACKGROUND: Dipeptidyl peptidase-4 (DPP4) is commonly targeted to achieve glycemic control and has potent anti-inflammatory and immunoregulatory effects. Recent structural analyses indicated a potential tight interaction between DPP4 and…
View details →Negative / Null Result ReportOpen accessMedicine
Manuel Blesa, Paola Galdi, Gemma Sullivan et al. · 2020 · Frontiers in Neurology
Preterm birth is closely associated with cognitive impairment and generalized dysconnectivity of neural networks inferred from water diffusion MRI (dMRI) metrics. Peak width of skeletonized mean diffusivity (PSMD) is a metric derived from histogram analysis of mean diffusivity across the white matter skeleton, and it is a useful biomarker of generalized dysconnectivity and cognition in adulthood. We calculated PSMD and five other histogram based metrics derived from diffusion tensor imaging (DTI) and neurite orientation and dispersion imaging (NODDI) in the newborn, and evaluated their accurac
View details →Negative / Null Result ReportOpen accessNeuroscience
Ashley M. Brouillette, Gülin Öz, Christopher M. Gómez · 2015 · Disease Markers
Neurodegenerative diseases, including the spinocerebellar ataxias (SCA), would benefit from the identification of reliable biomarkers that could serve as disease subtype-specific and stage-specific indicators for the development and monitoring of treatments. We analyzed the cerebrospinal fluid (CSF) level of tau, α-synuclein, DJ-1, and glial fibrillary acidic protein (GFAP), proteins previously associated with neurodegenerative processes, in patients with the autosomal dominant SCA1, SCA2, and SCA6, and the sporadic disease multiple system atrophy, cerebellar type (MSA-C), compared with age-ma
View details →Negative / Null Result ReportOpen accessMedicine
Evan M. Graboyes, Kevin Y. Zhan, Elizabeth Garrett‐Mayer et al. · 2017 · Cancer
BACKGROUND: The current study was conducted to determine the effect of postoperative radiotherapy (PORT) on overall survival in patients with surgically managed pT3-T4aN0 laryngeal squamous cell carcinoma (SCC). METHODS: A review of the…
View details →Negative / Null Result ReportOpen accessMedicine
Morten Vester‐Andersen, Tina Waldau, Jørn Wetterslev et al. · 2015 · British journal of surgery
BACKGROUND: Emergency abdominal surgery carries a considerable risk of death and postoperative complications. Early detection and timely management of complications may reduce mortality. The aim was to evaluate the effect and feasibility…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Kagistia Hana Utami, Nur Amirah Binte Mohammad Yusof, Jing Eugene Kwa et al. · 2020 · Molecular Autism
FXS is the most common genetic cause of intellectual (ID) and autism spectrum disorders (ASD). FXS is caused by loss of FMRP, an RNA-binding protein involved in the translational regulation of a large number of neuronal mRNAs. Absence of FMRP has been shown to lead to elevated protein synthesis and is thought to be a major cause of the synaptic plasticity and behavioural deficits in FXS. The increase in protein synthesis results in part from abnormal activation of key protein translation pathways downstream of ERK1/2 and mTOR signalling. Pharmacological and genetic interventions that attenuate
View details →Negative / Null Result ReportMedicine
Kazunari Misawa, Yoshinari Mochizuki, Munetoshi Sakai et al. · 2019 · British journal of surgery
BACKGROUND: A survival benefit of extensive intraoperative peritoneal lavage (EIPL) has been reported in patients with gastric cancer with positive peritoneal cytology. The hypothesis of this study was that EIPL may reduce peritoneal…
View details →Negative / Null Result ReportOpen accessMedicine
Tasneem Zaihra, Christopher J. Walsh, Sara Ahmed et al. · 2016 · BMC Pulmonary Medicine
BACKGROUND: Although the heterogeneous nature of asthma has prompted asthma phenotyping with physiological or biomarker data, these studies have been mostly cross-sectional. Longitudinal studies that assess the stability of phenotypes based on a combination of physiological, clinical and biomarker data are currently lacking. Our objective was to assess the longitudinal stability of clusters derived from repeated measures of airway and physiological data over a 1-year period in moderate and severe asthmatics. METHODS: A total of 125 subjects, 48 with moderate asthma (MA) and 77 with severe asth
View details →Negative / Null Result ReportMedicine
Taro Oshikiri, Hodaka Numasaki, Junya Oguma et al. · 2021 · Annals of Surgery
OBJECTIVE: To clarify whether routine thoracic duct (TD) resection improves the prognosis of patients with esophageal cancer after radical esophagectomy. SUMMARY OF BACKGROUND DATA: Although TD resection can cause nutritional disadvantage…
View details →Negative / Null Result ReportOpen accessMedicine
Pierre‐Édouard Bollaert, Alexandra Monnier, Francis Schneider et al. · 2023 · Critical Care
BACKGROUND: In critically ill patients, positive fluid balance is associated with excessive mortality. The POINCARE-2 trial aimed to assess the effectiveness of a fluid balance control strategy on mortality in critically ill patients. METHODS: POINCARE-2 was a stepped wedge cluster open-label randomized controlled trial. We recruited critically ill patients in twelve volunteering intensive care units from nine French hospitals. Eligible patients were ≥ 18 years old, under mechanical ventilation, admitted to one of the 12 recruiting units for > 48 and ≤ 72 h, and had an expected length of stay
View details →Negative / Null Result ReportOpen accessMedicine
Byung Kook Lee, In Soo Cho, Joo Suk Oh et al. · 2018 · PLoS ONE
INTRODUCTION: The aim of this trial was to investigate the effect of a continuous infusion of a neuromuscular blockade (NMB) in comatose out-of-hospital cardiac arrest (OHCA) subjects who underwent targeted temperature management (TTM). METHODS: In this open-label, multicenter trial, subjects resuscitated from OHCA were randomly assigned to receive either NMB (38 subjects) or placebo (43 subjects) for 24 hours. Sedatives and analgesics were given according to the protocol of each hospital during TTM. The primary outcome was serum lactate levels at 24 hours after drug infusion. The secondary ou
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