Negative / Null Result Report
J Vietheer, C Unbehaun, K Classen et al. · 2019 · European Heart Journal
Abstract Background Graft failure caused by allograft rejection and vasculopathy is the most common cause of mortality after heart transplantation. To detect an early allograft rejection, endomyocardial biopsy is still needed. Tissue…
View details →DOI: 10.1093/eurheartj/ehz746.0235 Negative / Null Result Report
Cassandra Campbell, Kristin Wyckoff, Ronak Naik et al. · 2025 · Pediatric Cardiology
Abstract We sought to determine the impact of the COVID-19 on prenatal diagnosis (PND) of clinically significant congenital heart disease (CHD) and the role of socioeconomic status (SES), complexity of diagnosis, and proximity to advance…
View details →DOI: 10.1007/s00246-025-03844-2 Negative / Null Result Report
Fernando Medrano, Benjamín Gallardo, Pablo Gutiérrez et al. · 2024 · Marine Ornithology
The impact of the El Niño varies across seabirds, usually altering the distribution and causing population declines. Understanding El Niño’s effects is thus critical for conservation. We monitored 296 nests of the little-known Hydrobates…
View details →DOI: 10.5038/2074-1235.52.2.1603 Replication Failure
Haoyu Lian, Siyuan Zhou, Huanyang He et al. · 2026 · Frontiers in Oncology
Objective The purpose of this study was to reveal the genetic correlation of RANKL polymorphisms with bone metastasis in breast cancer patients. Methods In this study, 139 bone metastasis patients and 152 no metastasis were included as the…
View details →DOI: 10.3389/fonc.2026.1788455 Negative / Null Result ReportOpen access
Greenwood, Brian M, Walley, AJ, Greenwood, BM et al. · 2002
The influence of haptoglobin polymorphisms on severe malaria occurrence was assessed in 1183 individuals from The Gambia. No significant association was found between severe malaria and either haptoglobin genotypes or phenotypes. The…
View details →DOI: 10.1016/s0035-9203(02)90114-8 Negative / Null Result ReportOpen access
田原, 靖昭, 西澤, 昭, 管原, 正志 et al. · 1991
Aerobic exercise class was opened and blood and physical composition were examined. Results indicated that no significant improvement on measured items was observed. Frequency of participation is suggested to be increased or class goal…
Negative / Null Result ReportOpen access
Akerley, Wallace, Vokes, Everett E., Cicchetti, M Giulia et al. · 2009
BackgroundIn Cancer and Leukemia Group B 39801, we evaluated whether induction chemotherapy before concurrent chemoradiotherapy would result in improved survival and demonstrated no significant benefit from the addition of induction…
View details →DOI: 10.1097/jto.0b013e3181b27b33 Negative / Null Result ReportOpen access
Braun, Jennifer, Lynn · 2001
Page 33 of the original does not include the entire text.The purpose of this study was to assess the effects of foods made with cottonseed oil and corn oil on vitamin E intake and lipid levels. There were no significant changes found…
Negative / Null Result ReportOpen access
Borgers, Sherry, Buenning, Meredith, Farmer, Art et al. · 1980
This research was published by the KU Center for Research on Learning, formerly known as the University of Kansas Institute for Research in Learning Disabilities.The study found that LD adolescents did not differ significantly from non-LD…
Negative / Null Result ReportOpen access
Davis, Joyce Lucille, NC DOCKS at The University of North Carolina at Greensboro · 1979
The purpose of this experiment was to determine the effectiveness of reflectivity training for kindergarten and second grade subjects using one-to-one correspondence tasks. It was hypothesized that there were no significant differences…
Negative / Null Result ReportOpen access
Manolis AS, Padeletti L., Mont L et al. · 2008
Dual-chamber (DDD) pacing has generally been regarded as "physiologic pacing" and therefore expected to be superior to ventricular pacing. Major randomized trials have so far failed to demonstrate significant reductions in the incidences…
View details →DOI: 10.1016/j.ahj.2008.05.004 Negative / Null Result ReportOpen access
José M. Ferro, Guilhermina Cantinho, Élia Baeta · 1991
A 45-year-old right-handed man developed “crossed” anomie aphasia, neglect and inaccurate reaching of his left arm in both hemispaces due to a right parietal haemorrhage. Aphasia cleared in a few days. SPECT failed to demonstrate crossed…
View details →DOI: 10.3233/ben-1991-4203 Negative / Null Result ReportOpen access
Manuel Carlos Martins Castro (5255606) · 2022
ABSTRACT Online hemodiafiltration is potentially a superior mode of dialysis compared to conventional hemodialysis. However, prospective randomized controlled trials have failed to demonstrate such superiority. Post-hoc analyses of these…
View details →DOI: 10.6084/m9.figshare.19964391.v1 Negative / Null Result ReportOpen access
Kliphuis, E. · 1973
Cytologioal investigations within Galium boreale L. showed the occurrence of tetraploids (2n=44) as well as hexaploids (2n=66) in Europe. Comparative morphological studies failed to demonstrate any differences in characters between the two…
Negative / Null Result ReportOpen access
Wanying Xie, Christopher Cheng, Anthony Goh Whatt et al. · 2014
We present a case of a 63-year-old gentleman, who had an initial negative prostate needle biopsy, but persistently elevated prostate-specific antigen levels. An magnetic resonance imaging study of the prostate failed to demonstrate the…
View details →DOI: 10.4103/1450-1147.144824 Negative / Null Result ReportOpen access
Marc Fisher, Ulrich Dirnagl, Geoffrey A Donnan et al. · 2020
Background and Purpose-As a research community, we have failed to demonstrate that drugs which show substantial efficacy in animal models of cerebral ischemia can also improve outcome in human stroke. Summary of Review-Accumulating…
Negative / Null Result ReportOpen access
Claire L. Gibson (6162488), Philip M. Bath (3111867) · 2015
Two multi-centre phase III clinical trials examining the protective potential of progesterone following traumatic brain injury have recently failed to demonstrate any improvement in outcome. Thus, it is timely to consider how this impacts…
Negative / Null Result ReportOpen access
M. Santilli, E. Grieco, ROSSETTI, MARCO et al. · 2014
Low high-density lipoprotein cholesterol (HDL-C) levels are associated with cardiovascular (CV) disease in type 2 diabetes (T2D). Unfortunately available drugs to increase HDL-C have failed to demonstrate a reduction in CV risk. We…
View details →DOI: 10.1016/j.diabres.2013.12.061 Negative / Null Result ReportOpen access
Armand J. Gold, Jeanne Q. Barry, Frederick P. Ferguson · 1960
Exposure of dogs to a simulated altitude of 30,000 feet for 30 minutes resulted in marked respiratory alkalosis and hypokalemia. The data failed to demonstrate, however, the appearance of the early transient hyperkalemic response which has…
View details →DOI: 10.1152/jappl.1960.15.1.37 Negative / Null Result ReportOpen access
Schellinger, Peter Dieter, Steiner, Thorsten, Köhrmann, Martin et al. · 2019
The optimal treatment strategy for secondary prevention in patients with cryptogenic stroke and patent foramen ovale (PFO) has been a matter of controversy for decades. After three randomized trials failed to show a benefit of closure with…
View details →DOI: 10.5853/jos.2018.03097 Negative / Null Result ReportOpen access
Augustus L Baker, Timothy Vickery, Alison Lobo et al. · 2021
We have decided to follow up our experiment with a second experiment. Results from the previous experiment supported that distractor suppression happens in retinotopic space, however we failed to find any significant target suppression…
View details →DOI: 10.17605/osf.io/fzabv Negative / Null Result ReportOpen access
Stahl, Christoph, Bading, Karoline Corinna · 2023
Recent research has failed to find evidence for “subliminal” evaluative conditioning (EC) in “intentional” learning conditions (Stahl & Bading, 2020; Stahl, Haaf, & Corneille, 2016). In the present research, we tested whether “subliminal”…
View details →DOI: 10.23668/psycharchives.13491 Negative / Null Result ReportOpen access
Sheldon Danziger, Lesley J. Turner, Kristin S. Seefeldt
Although employment among welfare mothers increased substantially following the 1996 welfare reform, some former welfare recipients failed to find stable employment. We review the extent to which low-income mothers are without work and…
View details →DOI: 10.1111/j.1540-6237.2006.00378.x Negative / Null Result ReportOpen access
M. NORBIATO, F. PISETTA, BARBATO, ANGELO · 1986
Abstract Nine children, sensitized to grass pollens, with seasonal rhinitis and mild asthma underwent bronchial challenge with carbachol and EIA test repeatedly either during a pre-seasonal or in seasonal period. We failed to find any…
Negative / Null Result ReportOpen access
Stoll, Richard J. · 1992
The empirical literature on arms races has often failed to find strong evidence of the existence of arms races among "obvious" dyads. In this article it is argued that if we assume that decision makers use simple rules and concentrate on…
View details →DOI: 10.1177/0022002792036002003. Negative / Null Result ReportOpen access
Yükmen Edens, Bakiye · 2018
Survey and excavation in northern Hatay and Smooth Cilicia (Adana and Osmaniye) have largely failed to find Palaeolithic and Aceramic Neolithic sites. The author here reports two seasons of a survey focused specifically on and around…
Negative / Null Result ReportOpen access
Goudy-Trainor, Amanda, Freeman, Patricia W. · 2002
We attempted to correlate echolocation call parameters to a comprehensive array of ear and nose measurements from 12 families of bats. Surprisingly, we failed to find any significant relationships. We did find consistent differences…
Negative / Null Result ReportOpen access
Leigh Ann Vaughn, Christopher R. Chartier, Donald Sacco et al. · 2021
Many Labs 3 (Ebersole et al., 2016) failed to replicate a classic finding from the Elaboration Likelihood Model of persuasion (Cacioppo, Petty, & Morris, 1983; Study 1). Petty and Cacioppo (2016) noted possible limitations of the Many Labs…
View details →DOI: 10.31219/osf.io/dvx9a Negative / Null Result ReportOpen access
Line, Marsha J., Christopher R. Chartier, Ebersole, Charles R. et al. · 2016
Many Labs 3 (Ebersole et al., 2016) failed to replicate a classic finding from the Elaboration Likelihood Model of persuasion (Cacioppo, Petty, & Morris, 1983; Study 1). Petty and Cacioppo (2016) noted possible limitations of the Many Labs…
View details →DOI: 10.1016/j.jesp.2016.12.005 Negative / Null Result ReportOpen access
Leigh Ann Vaughn, Christopher R. Chartier, Mitch Brown et al. · 2016
Many Labs 3 (Ebersole et al., 2016) failed to replicate a classic finding from the Elaboration Likelihood Model of persuasion (Cacioppo, Petty, & Morris, 1983; Study 1). Petty and Cacioppo (2016) noted possible limitations of the Many Labs…
