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19,815 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 accessEarth and Planetary Sciences

A D-vine copula-based quantile regression towards merging satellite precipitation products over rugged topography: a case study in the upper Tekeze–Atbara Basin

Mohammed Abdallah, Ke Zhang, Lijun Chao et al. · 2024 · Hydrology and earth system sciences

Abstract. Precipitation is a vital key element in various studies of hydrology, flood prediction, drought monitoring, and water resource management. The main challenge in conducting studies over remote regions with rugged topography is that weather stations are usually scarce and unevenly distributed. However, open-source satellite-based precipitation products (SPPs) with a suitable resolution provide alternative options in these data-scarce regions, which are typically associated with high uncertainty. To reduce the uncertainty of individual satellite products, we have proposed a D-vine copul

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Negative / Null Result ReportOpen accessMedicine

The Price of Explainability in Machine Learning Models for 100-Day Readmission Prediction in Heart Failure: Retrospective, Comparative, Machine Learning Study

Amira Soliman, Björn Agvall, Kobra Etminani et al. · 2023 · Journal of Medical Internet Research

BACKGROUND: Sensitive and interpretable machine learning (ML) models can provide valuable assistance to clinicians in managing patients with heart failure (HF) at discharge by identifying individual factors associated with a high risk of readmission. In this cohort study, we delve into the factors driving the potential utility of classification models as decision support tools for predicting readmissions in patients with HF. OBJECTIVE: The primary objective of this study is to assess the trade-off between using deep learning (DL) and traditional ML models to identify the risk of 100-day readmi

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Negative / Null Result Report

Strategy war games: how business can outperform the competition

Jason West, Maiko Chu, Lincoln Crooks et al. · 2018 · Journal of Business Strategy

Purpose Business wargames represent an alternative approach to challenge organisations to uncover internal capabilities through competitive actions designed to counteract external threats and address strategic mismatches. Internal…

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Negative / Null Result ReportOpen accessMedicine

On the Rapid Calculation of Binding Affinities for Antigen and Antibody Design and Affinity Maturation Simulations

Simone Conti, Edmond Y. Lau, Victor Ovchinnikov · 2022 · Antibodies

The accurate and efficient calculation of protein-protein binding affinities is an essential component in antibody and antigen design and optimization, and in computer modeling of antibody affinity maturation. Such calculations remain challenging despite advances in computer hardware and algorithms, primarily because proteins are flexible molecules, and thus, require explicit or implicit incorporation of multiple conformational states into the computational procedure. The astronomical size of the amino acid sequence space further compounds the challenge by requiring predictions to be computed

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Accurate prediction of quantitative traits with failed SNP calls in canola and maize

Sven E. Weber, Harmeet Singh Chawla, Lennard Ehrig et al. · 2023 · Frontiers in Plant Science

In modern plant breeding, genomic selection is becoming the gold standard to select superior genotypes in large breeding populations that are only partially phenotyped. Many breeding programs commonly rely on single-nucleotide polymorphism (SNP) markers to capture genome-wide data for selection candidates. For this purpose, SNP arrays with moderate to high marker density represent a robust and cost-effective tool to generate reproducible, easy-to-handle, high-throughput genotype data from large-scale breeding populations. However, SNP arrays are prone to technical errors that lead to failed al

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Negative / Null Result ReportOpen accessMedicine

Effect of the index of cardiac electrophysiological balance on major adverse cardiovascular events in patients with diabetes complicated with coronary heart disease

Yuan Lin, Fang Zhou, Xihui Wang et al. · 2023 · PeerJ

Purpose: To investigate the prognostic value of the index of cardio-electrophysiological balance (ICEB) and its association with major adverse cardiac events (MACE) and cardiovascular death in diabetic patients complicated with coronary heart disease. Methods: A total of 920 diabetic patients were enrolled in this longitudinal study. Participants were categorized into three groups based on their ICEB levels: normal ICEB, low ICEB, and high ICEB. The primary outcome was the occurrence of MACE, and secondary outcomes included cardiovascular death, coronary heart disease (CHD), heart failure (HF)

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Negative / Null Result ReportOpen accessMedicine

Antineoplastic Drug Synergy of Artesunate with Navitoclax in Models of High-Grade Serous Ovarian Cancer

J. Robert McCorkle, Rebecca Ahn, Connie D. Cao et al. · 2024 · Cancers

) known as artemisinins. Artesunate has traditionally been used as a frontline treatment for severe malaria but has also demonstrated antineoplastic activity against various malignancies, including ovarian cancer. Data suggest that artesunate exacerbates cellular oxidative stress, triggering apoptosis. In the current study, we investigated the ability of navitoclax, an inhibitor of the antiapoptotic Bcl-2 protein family, to enhance artesunate efficacy in ovarian cancer cells. Artesunate and navitoclax both demonstrated antiproliferative effects on 2D and 3D ovarian cancer cell models as single

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Negative / Null Result Report

Pre-exposure Prophylaxis with Tixagevimab-cilgavimab did not Reduce Severity of COVID-19 in Lung Transplant Recipients with Breakthrough Infection

Devika Sindu, Deepika Razia, Katherine Grief et al. · 2023 · Transplantation Direct

Background. Lung transplant recipients (LTRs) have an increased risk of COVID-19–related morbidity and mortality. Tixagevimab-cilgavimab (tix-cil) is a long-acting monoclonal antibody combination granted Emergency Use Authorization…

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Negative / Null Result ReportOpen accessMedicine

Vaccines targeting the primary amino acid sequence and conformational epitope of amyloid‐β had distinct effects on neuropathology and cognitive deficits in EAE/AD mice

Xiaolin Yu, Jie Zhu, Xiang‐meng Liu et al. · 2020 · British Journal of Pharmacology

BACKGROUND AND PURPOSE: Immunotherapeutic intervention is one of the most promising strategies for the prevention and treatment of Alzheimer's disease (AD). Although they showed great success in AD mouse models, the clinical trials of many…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

IKKα promotes lung adenocarcinoma growth through ERK signaling activation via DARPP-32-mediated inhibition of PP1 activity

Sk. Kayum Alam, Li Wang, Zhu Zhu et al. · 2023 · npj Precision Oncology

Non-small cell lung cancer (NSCLC) accounts for 80-85% cases of lung cancer cases. Diagnosis at advanced stages is common, after which therapy-refractory disease progression frequently occurs. Therefore, a better understanding of the molecular mechanisms that control NSCLC progression is necessary to develop new therapies. Overexpression of IκB kinase α (IKKα) in NSCLC correlates with poor patient survival. IKKα is an NF-κB-activating kinase that is important in cell survival and differentiation, but its regulation of oncogenic signaling is not well understood. We recently demonstrated that IK

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Negative / Null Result ReportOpen accessImmunology and Microbiology

Tumor Subtype Determines Therapeutic Response to Chimeric Polypeptide Nanoparticle–based Chemotherapy in Pten -deleted Mouse Models of Sarcoma

Rebecca D. Dodd, Amanda Scherer, Wesley Huang et al. · 2020 · Clinical Cancer Research

Abstract Purpose: Nanoparticle-encapsulated drug formulations can improve responses to conventional chemotherapy by increasing drug retention within the tumor and by promoting a more effective antitumor immune response than free drug. New…

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Negative / Null Result ReportOpen accessMedicine

Feasibility study of mobile phone photography as a possible outcome measure of systemic sclerosis-related digital lesions

Adrian K. Davison, Graham Dinsdale, Paul New et al. · 2022 · Rheumatology Advances in Practice

Objective: Clinical trials assessing systemic sclerosis (SSc)-related digital ulcers have been hampered by a lack of reliable outcome measures of healing. Our objective was to assess the feasibility of patients collecting high-quality mobile phone images of their digital lesions as a first step in developing a smartphone-based outcome measure. Methods: Patients with SSc-related digital (finger) lesions photographed one or more lesions each day for 30 days using their smartphone and uploaded the images to a secure Dropbox folder. Image quality was assessed using six criteria: blurriness, shadow

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Negative / Null Result ReportOpen accessMedicine

Systemic Therapies for HER2-Positive Advanced Breast Cancer

Vasileios Angelis, Alicia Okines · 2023 · Cancers

Despite recent advances, HER2-positive advanced breast cancer (ABC) remains a largely incurable disease, with resistance to conventional anti-HER2 drugs ultimately unavoidable for all but a small minority of patients who achieve an enduring remission and possibly cure. Over the past two decades, significant advances in our understanding of the underlying molecular mechanisms of HER2-driven oncogenesis have translated into pharmaceutical advances, with the developing of increasingly sophisticated therapies directed against HER2. These include novel, more potent selective HER2 tyrosine kinase in

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Negative / Null Result ReportOpen accessMedicine

Hepatic artery infusion of FOLFOX chemotherapy plus camrelizumab combined with sorafenib for advanced hepatocellular carcinoma in Barcelona Clinic Liver Cancer stage C (Double-IA-001): a phase II trial

Lujun Shen, Fei Cao, Ying Liu et al. · 2025 · BMC Medicine

BACKGROUND: Hepatic arterial infusion chemotherapy (HAIC) with a combination of oxaliplatin, fluorouracil, and leucovorin (FOLFOX) has shown excellent local control for patients with Barcelona Clinic Liver Cancer (BCLC) stage C…

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Negative / Null Result ReportMedicine

Significant effects of lymph and blood vascular invasion on the prognosis of early‐stage cervical squamous cell carcinoma

Yanna Zhang, Ming Yan, Jiehua He et al. · 2010 · Journal of obstetrics and gynaecology research

AIM: In the past 10 years, therapeutic advances have led to improved short-term efficacy for cervical carcinoma; however, the 5-year survival rate was not significantly enhanced. To investigate the effects of blood vessel invasion (BVI)…

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Negative / Null Result ReportOpen accessMedicine

Chemoradiation ± Atezolizumab in Limited-Stage Small Cell Lung Cancer: Results of NRG Oncology/Alliance LU005

Kristin A. Higgins, Chen Hu, Helen J. Ross et al. · 2026 · Journal of Clinical Oncology

PURPOSE NRG Oncology/Alliance LU005 (ClinicalTrials.gov identifier: NCT03811002 ) tested the addition of atezolizumab to concurrent chemoradiation (CRT) in this open-label, phase III international trial. METHODS Patients with limited-stage…

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Negative / Null Result ReportOpen accessMedicine

Impact of Coronary Lesion Stability on the Benefit of Emergent Percutaneous Coronary Intervention After Sudden Cardiac Arrest

Louis Pechmajou, Éloi Marijon, Olivier Varenne et al. · 2020 · Circulation Cardiovascular Interventions

Background: Conflicting data exist regarding the benefit of urgent coronary angiogram and percutaneous coronary intervention (PCI) after sudden cardiac arrest, particularly in the absence of ST-segment elevation. We hypothesized that the…

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Negative / Null Result ReportOpen accessMedicine

Ratcheting down the virulence of SARS‐CoV‐2 in the COVID‐19 pandemic

Adam Brufsky, Michael T. Lotze · 2020 · Journal of Medical Virology

Muller's ratchet1 predicts that when mutation rates are high and a significant proportion of mutations are deleterious, a kind of irreversible ratchet mechanism will gradually decrease the mean fitness of small populations of asexual organisms.2 In cell culture, serial passage of genetically bottlenecked vesicular stomatitis virus, which grew quite rapidly on HeLa cells, severely reduced in fitness and virulence within 20 passages in a novel BHK host cell.2 Genetic bottlenecks are likely important in intraspecies viral transmission.3 RNA-based viruses are particularly prone to repeated bottlen

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Negative / Null Result ReportMedicine

Ganciclovir Therapy for CMV Viremia in a Patient on VV ECMO With COVID-19 After Treatment With Tocilizumab

Leah Amundson, Brandon Boelts, Vivek Kataria et al. · 2021 · Infectious Diseases in Clinical Practice

To the Editor: Coronavirus disease 2019 (COVID-19) has resulted in a widespread pandemic in which various therapeutics have been studied. Targeted therapies focus on either the viral or the inflammatory phase to ultimately reduce disease…

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Negative / Null Result ReportOpen accessMedicine

Development of a tailored intervention targeting sedentary behavior and physical activity in people with stroke and diabetes: A qualitative study using a co-creation framework

Stefan Sjørslev Bodilsen, Mette Aadahl, Troels Wienecke et al. · 2023 · Frontiers in Rehabilitation Sciences

Purpose: Type 2 diabetes and sedentary behavior pose serious health risks in stroke survivors. Using a co-creation framework, this study aimed to develop an intervention in collaboration with stroke survivors with type 2 diabetes, relatives, and cross-sectoral health care professionals to reduce sedentary behavior and increase physical activity. Materials and methods: = 10) to develop the intervention. A content analysis was used to analyze data. Results: The developed "Everyday Life is Rehabilitation" (ELiR) intervention consisted of a tailored 12-week home-based behavior change intervention

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Negative / Null Result ReportOpen accessMedicine

Epidemiology of childhood acute kidney injury in England using e-alerts

Lucy Plumb, Anna Casula, Manish D. Sinha et al. · 2023 · Clinical Kidney Journal

ABSTRACT Background Few studies describe the epidemiology of childhood acute kidney injury (AKI) nationally. Laboratories in England are required to issue electronic (e-)alerts for AKI based on serum creatinine changes. This study…

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Negative / Null Result ReportOpen accessMedicine

Erythrocytosis incidence and thromboembolic risk in heart failure with reduced ejection fraction treated with SGLT2 inhibitors: a nationwide register-based cohort study

Abdullahi Ahmed Mohamed, Camilla Fuchs Andersen, Daniel Mølager Christensen et al. · 2025 · Cardiovascular Diabetology

BACKGROUND: Sodium-glucose cotransporter-2 inhibitors (SGLT2i) increase haemoglobin and haematocrit levels, potentially causing secondary erythrocytosis-defined as a haemoglobin level above 16.5 g/dL in men and 16.0 g/dL in women-which is…

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