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20,211 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

Pharmacoepigenetics of hypertension: genome-wide methylation analysis of responsiveness to four classes of antihypertensive drugs using a double-blind crossover study design

Marja-Liisa Nuotio, Heini Sánez Tähtisalo, Alexandra Lahtinen et al. · 2022 · Epigenetics

Essential hypertension remains the leading risk factor of global disease burden, but its treatment goals are often not met. We investigated whether DNA methylation is associated with antihypertensive responses to a diuretic, a beta-blocker, a calcium channel blocker or an angiotensin receptor antagonist. In addition, since we previously showed an SNP at the transcription start site (TSS) of the catecholamine biosynthesis-related ACY3 gene to associate with blood pressure (BP) response to beta-blockers, we specifically analysed the association of methylation sites close to the ACY3 TSS with BP

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Negative / Null Result ReportOpen accessMedicine

Bioinspired Intervertebral Disc with Multidirectional Stiffness Prepared via Multimaterial Additive Manufacturing

Guangsheng Song, Zhihui Qian, Xiangyu Liu et al. · 2023 · Advanced Functional Materials

Abstract Degenerative disc disease (DDD) has become a significant public health issue worldwide. This can result in loss of spinal function affecting patient health and quality of life. Artificial total disc replacement (A‐TDR) is an…

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Negative / Null Result ReportOpen accessMathematics

A SIMULATION STUDY ON TESTS FOR ONE-WAY ANOVA UNDER THE UNEQUAL VARIANCE ASSUMPTION

Esra Yiğit, Fikri Gökpınar · 2010 · Communications Faculty Of Science University of Ankara Series A1Mathematics and Statistics

The classical F-test to compare several population means depends on the assumption of homogeneity of variance of the population and the normality. When these assumptions especially the equality of variance is dropped, the classical F-test fails to reject the null hypothesis even if the data actually provide strong evidence for it. This can be considered a serious problem in some applications, especially when the sample size is not large. To deal with this problem, a number of tests are available in the literature. In this study, the Brown-Forsythe, Weerahandiís Generalized F, Parametric Bootst

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Negative / Null Result Report

Towards integrated oncogenic marker recognition through mutual information‐based statistically significant feature extraction: an association rule mining based study on cancer expression and methylation profiles

Saurav Mallik, Zhongming Zhao · 2017 · Quantitative Biology

Background Marker detection is an important task in complex disease studies. Here we provide an association rule mining (ARM) based approach for identifying integrated markers through mutual information (MI) based statistically significant…

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Negative / Null Result Report

No statistically significant kinematic difference found between a cruciate-retaining and posterior-stabilised Triathlon knee arthroplasty

N. C. Hunt, K. M. Ghosh, A. P. Blain et al. · 2015 · The Bone & Joint Journal

The aim of this study was to compare the maximum laxity conferred by the cruciate-retaining (CR) and posterior-stabilised (PS) Triathlon single-radius total knee arthroplasty (TKA) for anterior drawer, varus–valgus opening and rotation in…

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Negative / Null Result ReportOpen accessSocial Sciences

Does governance matter to ensure significant effect of foreign direct investment on poverty reduction? Evidence from developing and emerging countries

Zouhaier Aloui, Mekki Hamdaoui, Samir Maktouf · 2024 · Transnational Corporation Review

This paper examines the moderating role of governance in the effect of Foreign Direct Investment (FDI) on poverty using simultaneous equations models for sub-Saharan African, Asian, Latin American and Eastern European countries over the…

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Negative / Null Result Report

Did Kant suffer from misophonia?

Arnaud Norena · 2024 · Frontiers in Psychology

Misophonia is a disorder of decreased tolerance to specific sounds, often produced by humans but not always, which can trigger intense emotional reactions (anger, disgust etc.). This relatively prevalent disorder can cause a reduction in…

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Negative / Null Result ReportOpen accessMedicine

Significant Association between the T2 Values of Vertebral Cartilage Endplates and Pfirrmann Grading

Yi Cao, Qing‐wei Guo, Ye‐da Wan · 2020 · Orthopaedic Surgery

Objective The T2 value of lumbar cartilage endplates was measured using the T2 mapping imaging technique, aiming to explore the correlation between the T2 value and Pfirrmann grading of intervertebral discs. Methods A total of 130 patients with lumbar spine MR examination due to persistent low back pain were enrolled, including 71 men and 59 women (age: 21–63 years). Lumbar Modic changes and Schmorl nodules were recognized by conventional T1WI and T2WI images in 49 patients, and these patients were excluded from the study. A total of 81 patients were enrolled in this study, including 45 men (4

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Negative / Null Result Report

How Do Failed Entrepreneurs Cope with Their Prior Failure When They Seek Subsequent Re-Entry into Serial Entrepreneurship? Failed Entrepreneurs’ Optimism and Defensive Pessimism and Coping Humor as a Moderator

Kumju Hwang, Jinsook Choi · 2021 · International Journal of Environmental Research and Public Health

Entrepreneurial failure is prevalent, and particularly when the COVID−19 crisis exacerbates the economic recession, it becomes even more prevalent. Entrepreneurs experience an intensive emotional crisis when their ventures fail, and this…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Across-country genomic prediction of bull fertility in Jersey dairy cattle

Fernanda Marcondes de Rezende, M. Haile‐Mariam, J.E. Pryce et al. · 2020 · Journal of Dairy Science

The use of information across populations is an attractive approach to increase the accuracy of genomic predictions for numerically small breeds and traits that are time-consuming and difficult to measure, such as male fertility in cattle.…

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Negative / Null Result Report

Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination

Mark Cornelis van der Plas, Krista Ingeborg Janssen, Nikolaos Pandis et al. · 2017 · The Angle Orthodontist

ABSTRACT Objective: To investigate the effect of acrylic capping, treatment duration, overjet, and lower incisor inclination on the posttreatment tooth position in patients treated with 2 Twin Block (TB) appliance versions. Materials and…

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Negative / Null Result ReportEngineering

Individual differences in young children’s visual-spatial abilities

Donna Kotsopoulos, Samantha Makosz, Joanna Zambrzycka et al. · 2019 · Early Child Development and Care

An enduring challenge in visual-spatial research has been to identify the factors contributing to individual differences in ability. This research investigated the overall, verbal, and nonverbal visual-spatial ability of 61 (34 boys)…

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Negative / Null Result ReportPsychology

Analyzing a German-language Expanded Form of the PhoPhiKat-45: Psychometric Properties, Factorial Structure, Measurement Invariance with the Likert-Version, and Self-Peer Convergence

Kay Brauer, René T. Proyer · 2020 · Journal of Personality Assessment

Personality assessment typically relies on self-report questionnaires utilizing Likert-type scales. Recently, the Expanded format has been proposed as alternative, but research on the consequences of adapting Likert-like responses to…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Multi-modality artificial intelligence-based transthyretin amyloid cardiomyopathy detection in patients with severe aortic stenosis

Isaac Shiri, Sebastian Balzer, Giovanni Baj et al. · 2024 · European Journal of Nuclear Medicine and Molecular Imaging

PURPOSE: Transthyretin amyloid cardiomyopathy (ATTR-CM) is a frequent concomitant condition in patients with severe aortic stenosis (AS), yet it often remains undetected. This study aims to comprehensively evaluate artificial intelligence-based models developed based on preprocedural and routinely collected data to detect ATTR-CM in patients with severe AS planned for transcatheter aortic valve implantation (TAVI). METHODS: Tc]-DPD) for the presence of ATTR-CM. Clinical, laboratory, electrocardiogram, echocardiography, invasive measurements, 4-dimensional cardiac CT (4D-CCT) strain data, and C

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Negative / Null Result ReportSocial Sciences

Commentary

Ashley I. Naimi · 2016 · Epidemiology

The less a science is advanced, the more its terminology rests on an uncritical assumption of mutual understanding. —Quine1 Complex systems science is a new field that continues to garner prominence. Arguments for a more widespread…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

APC promoter is frequently methylated in pancreatic juice of patients with pancreatic carcinomas or periampullary tumors

Mireia M. Ginesta, Zamira V. Díaz‐Riascos, Juli Busquets et al. · 2016 · Oncology Letters

Early detection of pancreatic and periampullary neoplasms is critical to improve their clinical outcome. The present authors previously demonstrated that DNA hypermethylation of adenomatous polyposis coli (APC), histamine receptor H2…

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Negative / Null Result ReportOpen accessMedicine

Bronchoalveolar lavage fluid and serum 1,3-β-d-glucan testing for invasive pulmonary aspergillosis diagnosis in hematological patients: the role of factors affecting assay performance

Barbora Weinbergerová, Tomáš Kabut, Iva Kocmanová et al. · 2020 · Scientific Reports

Invasive fungal disease (IFD) early diagnosis improves hematological patient survival. Non-culture-based methods may reduce diagnostic time to identify IFD. As complex data on the value of 1,3-β-D-glucan (BDG) from bronchoalveolar lavage fluid (BALF) compared to serum for the most frequent invasive pulmonary aspergillosis (IPA) diagnosis are scarce, particularly including evaluation of potential factors adversely affecting BDG assay, we provided prospective single-center analysis evaluating 172 episodes of pulmonary infiltrates with BDG detection in BALF and serum samples collected in parallel

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Negative / Null Result ReportOpen accessMedicine

Multimodal Treatment in Metastatic Colorectal Cancer (mCRC) Improves Outcomes—The University College London Hospital (UCLH) Experience

Nalinie Joharatnam‐Hogan, William Wilson, Kai Keen Shiu et al. · 2020 · Cancers

Background: Despite notable advances in the management of metastatic colorectal cancer (mCRC) over the last two decades, treatment intent in the vast majority of patients remains palliative due to technically unresectable disease, extensive disease, or co-morbidities precluding major surgery. Up to 30% of individuals with mCRC are considered potentially suitable for primary or metastasis-directed multimodal therapy, including surgical resection, ablative techniques, or stereotactic radiotherapy (RT), with the aim of improving survival outcomes. We reviewed the potential benefits of multimodal

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Negative / Null Result ReportBiochemistry, Genetics and Molecular Biology

Significant differences in dietary intake of NCAA Division III soccer players compared to recommended levels

Kaneen Gomez-Hixson, Ericka Biagioni, Melissa Brown · 2020 · Journal of American College Health

Objective: This study evaluated dietary intake patterns of NCAA Division III soccer players compared to recommended levels. Participants: NCAA Division III soccer players (n = 75). Methods: Actual dietary intake was determined by the…

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Negative / Null Result ReportOpen accessEnvironmental Science

Does fox control improve red–legged partridge (Alectoris rufa) survival? An experimental study in Northern Spain

IREC, CSIC–UCLM–JCCM, Ciudad Real, Spain, Ainhoa Mateo-Moriones, Rafael Villafuerte et al. · 2012 · Animal Biodiversity and Conservation

This work evaluates the effectiveness of fox control as a method to improve the survival of red–legged partridge (Alectoris rufa). We radio–tracked 89 adult partridges and their chicks (62 few days old chicks and 46 over one–month–old chicks) and monitored their nests (N = 45) on two hunting estates in northern Spain over two years. Generalist predators (red fox, Vulpes vulpes, and magpie, Pica pica) were selectively controlled on one half of each estate during the first year, and on the other half in the second year. We estimated the effect of predator control on survival rates. Predator cont

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