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19,808 real negative results, null findings, and replication failures · Negative / Null Result Report. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Comparison of ambulatory capacity and disease progression of Duchenne muscular dystrophy subjects enrolled in the drisapersen DMD114673 study with a matched natural history cohort of subjects on daily corticosteroids

Nathalie Goemans, M. Tulinius, Anna‐Karin Kroksmark et al. · 2016 · Neuromuscular Disorders

Duchenne muscular dystrophy is a rare genetic disorder with life-limiting pathology. Drisapersen induces exon 51 skipping, thereby producing a shorter but functional dystrophin protein. The longest available data are from an open-label…

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Negative / Null Result ReportOpen accessNursing

Randomized study to compare nasojejunal with nasogastric nutrition in critically ill patients without prior evidence of altered gastric emptying

Gilberto Friedman, Cecilia Lopes Flávia Couto, Maicon Becker · 2015 · Indian Journal of Critical Care Medicine

BACKGROUND AND AIMS: Studies comparing jejunal and gastric nutrition show inconsistent results regarding pneumonia. The aim of this study was to evaluate the incidence of pneumonia comparing gastric with jejunal nutrition. Secondarily, we…

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Negative / Null Result ReportOpen accessMedicine

Final results of a phase II study of CHOEP plus lenalidomide as initial therapy for patients with stage II–IV peripheral T‐cell lymphoma

Robert Stuver, Steven M. Horwitz, Ranjana H. Advani et al. · 2023 · British Journal of Haematology

There remains no one standard induction for nodal-based peripheral T-cell lymphoma (PTCL). We conducted a phase II study of lenalidomide plus CHOEP as a novel induction strategy. Patients received CHOEP at standard doses in combination…

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Negative / Null Result ReportOpen accessMedicine

Clinical benefit of treatment with eribulin mesylate for metastatic triple‐negative breast cancer: Long‐term outcomes of patients treated in the US community oncology setting

Sarah S. Mougalian, Ronda Copher, Jonathan Kish et al. · 2018 · Cancer Medicine

INTRODUCTION: Real-world data are critical to demonstrate the consistency of evidence and external generalizability of randomized controlled trials (RCTs). This study examined characteristics and outcomes of metastatic triple-negative breast cancer (mTNBC) patients treated with eribulin mesylate at community oncology practices in the United States. METHODS: Physicians identified mTNBC patients initiating eribulin between 1 January 2011 and 1 January 2014 and abstracted data into an electronic case report form (eCRF). Eribulin treatment in the metastatic setting was categorized as early use (EU

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Negative / Null Result ReportOpen accessMedicine

The Clinical Features of Children With Acute Fulminant Myocarditis and the Diagnostic and Follow-Up Value of Cardiovascular Magnetic Resonance

Jianli Lv, Bo Han, Cuiyan Wang et al. · 2019 · Frontiers in Pediatrics

Objective To investigate the clinical features and the diagnostic and follow-up value of acute fulminant myocarditis (AFM) in children. Methods 20 children diagnosed with AFM admitted to our department were reviewed, and the clinical manifestations; pathogenic examination results; myocardial injury biomarkers; and electrocardiography, echocardiogram and cardiovascular magnetic resonance (CMR) results were analyzed. Results The initial symptoms were abdominal pain, vomiting, fatigue, syncope, and convulsions. All children had significantly increased hs-cTnT and NT-pro BNP. In addition to nonspe

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Negative / Null Result ReportOpen accessPsychology

The influence of income and testosterone on the validity of facial width-to-height ratio as a biomarker for dominance

Emilou Noser, Jessica Schoch, Ulrike Ehlert · 2018 · PLoS ONE

Research has indicated that men's facial width-to-height ratio (fWHR) is part of an evolved system of social dominance, aggression, and power. fWHR has been linked to antisocial behavior, measured by self-reported aggression, but recent studies have failed to replicate this finding. To overcome these inconsistencies, influencing factors such as social status have to be taken into account in order to explain the relationship between fWHR and aggression. In particular, income has been shown to be an important influencing factor in this relationship. Furthermore, previous findings suggested that

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Negative / Null Result ReportOpen accessSocial Sciences

Could Alcohol Abuse Drive Intimate Partner Violence Perpetrators’ Psychophysiological Response to Acute Stress?

Sara Vitoria-Estruch, Ángel Romero‐Martínez, Marisol Lila et al. · 2018 · International Journal of Environmental Research and Public Health

Proactively aggressive individuals have been shown to present a different pattern of autonomic nervous system (ANS) dysregulation from that of individuals characterized by reactive violence. Although attempts have been made to classify intimate partner violence (IPV) perpetrators based on ANS reactivity to acute stress, subsequent studies have failed to replicate this classification. Notably, the proposed classification neglected the role of chronic alcohol abuse in ANS dysregulation and the fact that this dysregulation entails an abnormal stress response. The aim of the present study was to a

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Negative / Null Result ReportOpen accessComputer Science

What Do Cognitive Networks Do? Simulations of Spoken Word Recognition Using the Cognitive Network Science Approach

Michael S. Vitevitch, Gavin J. D. Mullin · 2021 · Brain Sciences

Cognitive network science is an emerging approach that uses the mathematical tools of network science to map the relationships among representations stored in memory to examine how that structure might influence processing. In the present study, we used computer simulations to compare the ability of a well-known model of spoken word recognition, TRACE, to the ability of a cognitive network model with a spreading activation-like process to account for the findings from several previously published behavioral studies of language processing. In all four simulations, the TRACE model failed to retr

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Negative / Null Result ReportSocial Sciences

Revisiting a Criminological Classic: The Cycle of Violence

Wesley Myers, Kristin M. Lloyd, Jillian J. Turanovic et al. · 2018 · Journal of Contemporary Criminal Justice

There is a growing “replication crisis” in the social and behavioral sciences, where original research across a wide array of substantive areas has failed to replicate when conducted by others. This problem highlights the importance of…

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Negative / Null Result Report

Biochar and zeolites did not improve phosphorus uptake or crop productivity in a field trial performed in an irrigated intensive farming system

Margarida Arrobas, João V. Decker, Bruna L. Feix et al. · 2021 · Soil Use and Management

Abstract Soil conditioners, such as biochar and zeolites, may play an important role in agriculture if they increase nutrient use efficiency, in particular, that of phosphorus (P), due to the depletion of phosphate rocks from which…

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Negative / Null Result Report

Lianas and Trees From a Seasonally Dry and a Wet Tropical Forest Did Not Differ in Embolism Resistance but Did Differ in Xylem Anatomical Traits in the Dry Forest

Chris M. Smith-Martin, Steven Jansen, Timothy J. Brodribb et al. · 2022 · Frontiers in Forests and Global Change

One of the most prominent changes in neotropical forests has been the increase in abundance and size of lianas. Studies suggest that lianas have more acquisitive strategies than trees, which could allow them to take advantage of water more…

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Negative / Null Result Report

Climate Change Can Drive a Significant Loss of Suitable Habitat for Polylepis quadrijuga, a Treeline Species in the Sky Islands of the Northern Andes

Lina Caballero-Villalobos, Francisco Fajardo-Gutiérrez, Mariasole Calbi et al. · 2021 · Frontiers in Ecology and Evolution

It is predicted that climate change will strongly affect plant distributions in high elevation “sky islands” of tropical Andes. Polylepis forests are a dominant element of the treeline throughout the Andes Cordillera in South America.…

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Negative / Null Result ReportOpen accessAgricultural and Biological Sciences

Refining Pheromone Lures for the Invasive Halyomorpha halys (Hemiptera: Pentatomidae) Through Collaborative Trials in the United States and Europe

Tracy Leskey, Heather Andrews, Angelika Bády et al. · 2021 · Journal of Economic Entomology

Brown marmorated stink bug, Halyomorpha halys, is native to Asia and has invaded North America and Europe inflicting serious agricultural damage to specialty and row crops. Tools to monitor the spread of H. halys include traps baited with…

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Negative / Null Result ReportOpen accessMedicine

Plasmodium falciparum gametocyte carriage in symptomatic patients shows significant association with genetically diverse infections, anaemia, and asexual stage density

Paul Sondo, Biébo Bihoun, Marc Christian Tahita et al. · 2021 · Malaria Journal

BACKGROUND: Multi-genotype malaria infections are frequent in endemic area, and people commonly harbour several genetically distinct Plasmodium falciparum variants. The influence of genetic multiplicity and whether some specific genetic variants are more or less likely to invest into gametocyte production is not clearly understood. This study explored host and parasite-related risk factors for gametocyte carriage, and the extent to which some specific P. falciparum genetic variants are associated with gametocyte carriage. METHODS: Gametocytes and asexual forms were detected by light microscopy

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Negative / Null Result Report

Did advice on the prescription of sodium valproate reduce prescriptions to women? An observational study in three European countries between 2007 and 2016

Rachel Charlton, Christine Damase‐Michel, Caroline Hurault‐Delarue et al. · 2019 · Pharmacoepidemiology and Drug Safety

Abstract Objectives In November 2014, the CMDh (a regulatory body representing EU Member States) advised doctors not to prescribe sodium valproate for epilepsy or bipolar disorder in preg nant women, in women who can become pregnant, or in…

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Negative / Null Result Report

Single and repeated intra‐articular injections in the tarsocrural joint with allogeneic and autologous equine bone marrow‐derived mesenchymal stem cells are safe, but did not reduce acute inflammation in an experimental interleukin‐1β model of synovitis

Aimée C. Colbath, Steven W. Dow, Leone S. Hopkins et al. · 2020 · Equine Veterinary Journal

Abstract Background Allogeneic and autologous bone marrow‐derived mesenchymal stem cells (BMDMSCs) have been administered in equine joints for their anti‐inflammatory effects. However, allogeneic BMDMSC offer multiple clinical and…

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Negative / Null Result Report

Dimethyloxalylglycine (DMOG), a Hypoxia Mimetic Agent, Does Not Replicate a Rat Pheochromocytoma (PC12) Cell Biological Response to Reduced Oxygen Culture

RuoLi Chen, Mohammad Alkataan Ahmed, Nicholas Robert Forsyth · 2022 · Biomolecules

Cells respond to reduced oxygen availability predominately by activation of the hypoxia-inducible factor (HIF) pathway. HIF activation upregulates hundreds of genes that help cells survive in the reduced oxygen environment. The aim of this…

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Negative / Null Result ReportOpen accessDentistry

Smear layer deproteinization with NaOCl and HOCl: Do application/wash-out times affect dentin bonding of one-step self-etch adhesives?

Kittisak Sanon, Takashi Hatayama, Antonín Tichý et al. · 2022 · Dental Materials Journal

This study investigated the influence of application/wash-out times of sodium hypochlorite (NaOCl) and hypochlorous acid (HOCl) on dentin bond strength of one-step self-etch adhesives (1-SEAs). Human coronal dentin discs with a…

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Negative / Null Result ReportOpen accessEngineering

On the co-rotational method for geometrically nonlinear topology optimization

Peter D. Dunning · 2020 · Structural and Multidisciplinary Optimization

Abstract This paper investigates the application of the co-rotational method to solve geometrically nonlinear topology optimization problems. The main benefit of this approach is that the tangent stiffness matrix is naturally positive definite, which avoids some numerical issues encountered when using other approaches. Three different methods for constructing the tangent stiffness matrix are investigated: a simplified method, where the linear elastic stiffness matrix is simply rotated; the consistent method, where the tangent stiffness is derived by differentiating residual forces by displacem

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

MLH1 Region Polymorphisms Show a Significant Association with CpG Island Shore Methylation in a Large Cohort of Healthy Individuals

Andrea J. Savio, Mathieu Lemire, Miralem Mrkonjic et al. · 2012 · PLoS ONE

Single nucleotide polymorphisms (SNPs) are the most common form of genetic variation. We previously demonstrated that SNPs (rs1800734, rs749072, and rs13098279) in the MLH1 gene region are associated with MLH1 promoter island methylation, loss of MLH1 protein expression, and microsatellite instability (MSI) in colorectal cancer (CRC) patients. Recent studies have identified less CpG-dense "shore" regions flanking many CpG islands. These shores often exhibit distinct methylation profiles between different tissues and matched normal versus tumor cells of patients. To date, most epigenetic studie

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Negative / Null Result ReportOpen accessPsychology

Adolescent perfectionism: Structural features of the Frost Multidimensional Perfectionism Scale and correlates with attachment and psychopathology

Emily P. Taylor, Rachel Couper, Carolyn Maeve Butler · 2017 · Psychology and Psychotherapy Theory Research and Practice

OBJECTIVES: Perfectionism is recognized as a significant risk factor for psychopathology. Emerging research links attachment to perfectionism in adult and college-age samples. The Frost Multidimensional Perfectionism Scale (FMPS) has been…

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Negative / Null Result ReportOpen accessPsychology

Psychometric Validation Study of the Liebowitz Social Anxiety Scale - Self-Reported Version for Brazilian Portuguese

Larissa Forni dos Santos, Sônia Regina Loureiro, José Alexandre S. Crippa et al. · 2013 · PLoS ONE

Social Anxiety Disorder (SAD) is prevalent and rarely diagnosed due to the difficulty in recognizing its symptoms as belonging to a disorder. Therefore, the evaluation/screening scales are of great importance for its detection, with the most used being the Liebowitz Social Anxiety Scale (LSAS). Thus, this study proposed to evaluate the psychometric properties of internal consistency and convergent validity, as well as the confirmatory factorial analysis and reliability of the self-reported version of the LSAS (LSAS-SR), translated into Brazilian Portuguese, in a sample of the general populatio

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