21,707 real negative results, null findings, and replication failures. 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.
Yang J, Zhu D, Liu R et al. · 2026 · Bioresource technology
Partial nitritation (PN) underpins two-stage anaerobic ammonium oxidation-based nitrogen removal, but biomass management in sidestream PN reactors remains largely empirical. This study tested three PN sequencing batch reactors maintained…
View details →Ashraf A, Shamel M, Massieh C et al. · 2026 · BMC oral health
Background Energy drinks are acidic beverages with recognized erosive potential, but their effect on enamel characteristics relevant to orthodontic bonding remains incompletely described. This in vitro study evaluated the effect of…
View details →Mata M, Harmand MG, Prada-Arrondo PC et al. · 2026 · Preprint
Objective Older adults undergoing cardiac surgery may be vulnerable to postoperative cognitive decline. However, no studies have examined postoperative cognitive outcomes in older patients with cardiovascular disease (CVD) according to…
View details →Ganji SK, Talari K, Maloth RK et al. · 2026 · Rapid communications in mass spectrometry : RCM
Rationale Nitrite anion is among the highly reactive anions and converts the secondary amines to their corresponding carcinogenic N-nitroso metabolites in the human body. Nitrite ion is highly abundant in natural waters and enters the body…
View details →Niu J, Huang W, Zou J · 2026 · Clinical neurology and neurosurgery
Purpose To compare rupture-related signals captured by automatically extracted computed tomography angiography (CTA) morphologic features and threshold-based computed tomography perfusion (CTP) metrics in large unruptured intracranial…
View details →Sezen E, Kurtulmus H · 2026 · Preprint
Abstract Background To compare the time-dependent retentive-force behavior and wear-related surface alterations of two unsplinted overdenture attachment systems, a ball attachment system and a TRI Raptor Smart Box system, after…
View details →Ghareeb SM, Abd-Elkareem M, Abou-Elmagd A · 2026 · Biological research
Salvadora persica (miswak) has many useful biological activities. Some studies have reported that miswak can be used as a contraceptive agent. However, no available investigations explain the histomorphological structure of ovarian…
View details →Li X, Yan B, Zhao B et al. · 2026 · Cognition & emotion
This study investigated whether verbal humour could preventively regulate negative emotions in high trait anxiety (HTA) and low trait anxiety (LTA) individuals, exploring underlying cognitive neural mechanisms using ERPs and ERO. In a…
View details →Washino T, Nikaido T, Burrow MF et al. · 2026 · Dental traumatology : official publication of International Association for Dental Traumatology
Background/aims Adhesive procedures performed after dental trauma are often carried out in emergency settings with compromised isolation due to bleeding, limited access, and patient cooperation. This study evaluated how variation in…
View details →Znazen Y, Gaddes M, Janssens GPJ et al. · 2026 · Animals : an open access journal from MDPI
This study evaluated the effects of locally sourced ingredient dietary, with or without supplementation of black soldier fly ( Hermetia illucens ; BSF) larvae, on laying hen welfare. A total of 150 Lohman White hens aged 30 weeks were…
View details →Xie B, Rui Y · 2026 · Plants (Basel, Switzerland)
Nanotechnology has attracted increasing attention in agricultural and environmental research, but the biological effects and potential risks of nanoparticles based on non-essential elements remain insufficiently understood. This study…
View details →Potdar A, Kumari A · 2026 · Preprint
Abstract Solar radio bursts in the metric and decametric ranges are direct signatures of accelerated electrons in the solar atmosphere. It is almost always the case that these bursts are associated with solar flares. In the present study,…
View details →Fouad S, Abass M, Rizk A et al. · 2026 · Scientific reports
Epidural fibrosis (EF) refers to the non-physiological scar formation at the site where a surgical incision is made to access the spinal canal. This condition often results in functional disability and pain following spinal surgery and is…
View details →Destro JM, Reis BO, Chrisostomo DA et al. · 2026 · Journal of functional biomaterials
This study aimed to evaluate the effects of experimental bioactive glass solutions on dentinal fluid flow and hydraulic conductance in vitro. Dentin blocks of 50 bovine incisors were divided into 5 groups according to the desensitizing…
View details →Xu Z, Su S, Xu Z et al. · 2026 · Frontiers in psychology
The Drive for Muscularity Attitudes Questionnaire (DMAQ) is a brief tool for assessing muscularity-related attitudes. This study translated the DMAQ into Chinese and evaluated its reliability and validity separately in males and females. A…
View details →Koyuncu Z, Evcil FY, Kilimci ÖS et al. · 2026 · BMC psychiatry
Objective This study investigated whether current comorbid psychiatric symptoms were involved in statistical indirect associations between childhood attention-deficit/hyperactivity disorder (ADHD) symptoms (CAS) and functional impairment…
View details →Hirano K, Seki T, Watanabe A et al. · 2026 · Preprint
Background Initiation of emergency dialysis, often requiring temporary catheter owing to unprepared definitive vascular access, is associated with infectious and vascular complications and suggests advanced chronic kidney disease (CKD)…
View details →Gessler KB, Rescaroli J, Pires SM et al. · 2026 · Neurotoxicity research
Atorvastatin is a widely prescribed statin used for its cholesterol-lowering effects; however, it also exerts known pleiotropic effects, including antioxidant and anti-inflammatory properties. Atorvastatin´s impact on mitochondrial…
View details →Pan Y, Sun Y, Shi C et al. · 2026 · Preprint
Abstract Genetic testing guides personalized management of differentiated thyroid carcinoma (DTC). However, tumor heterogeneity, including spatial and temporal heterogeneity, has created an unresolved clinical problem. It remains unclear…
View details →Tuo Y, Yang S, Dai X et al. · 2026 · Journal of ethnopharmacology
Ethnopharmacological relevance Syringa oblata Lindl. emits a variety of biogenic volatile organic compounds (BVOCs) during full bloom, which forms the key chemical basis for its characteristic floral scent. Species of the genus Syringa…
View details →Boualia B, Sandeli A, Boulebd H et al. · 2026 · ACS omega
In this research, we present the successful synthesis of benzimidazolium salts ( 2a - e ) and their corresponding selenium-NHC adducts ( 3a - e ), achieved with satisfactory yields ranging from 75% to 88%, and characterized using…
View details →Qaid MM, Al-Garadi MA, Al-Abdullatif AA et al. · 2026 · Poultry science
Coccidiosis remains a major constraint in poultry production; therefore, this study evaluated the anticoccidial efficacy of a phytogenic blend of cinnamon bark and Rumex nervosus leaf in Eimeria tenella-challenged broilers. Birds were…
View details →Hayashi E, Kano H, Nakamura K et al. · 2026 · Respirology case reports
Small-cell lung cancer (SCLC) has a poor prognosis, and the efficacy of tarlatamab for untreated brain metastases remains unclear. We report a case demonstrating a discrepant response between extracranial and intracranial lesions after…
View details →Wei X, Xue M, Fan B et al. · 2026 · BMC pulmonary medicine
Background Long-term changes in lung function in children with symptom control asthma are rare. To assess the trajectory of pulmonary function in children and analyze the influence factors. Methods The effects of gender, age, Body Mass…
View details →Eltahir M, Young K, Younes S et al. · 2026 · American journal of clinical pathology
Objectives Determination of B-cell clonality in formalin-fixed, paraffin-embedded tissues is challenging, especially in cases where tumor B cells are sparse. Flow cytometry is of limited utility in Hodgkin lymphomas, at least in part due…
View details →Hauck F, Herber V, Moecke S et al. · 2026 · International journal of oral implantology (Berlin, Germany)
Purpose The aim of this pilot preclinical study was to investigate the performance of a novel double-lead thread, conical bone-level ceramic implant manufactured by injection moulding (test group) in comparison to a well-established…
View details →Uğurlu İ · 2026 · Journal of clinical laboratory analysis
Background Apelin-13 and Galectin-3 (Gal-3) are bioactive mediators linked to inflammation and cardiometabolic pathways. Their clinical utility in COVID-19 alongside routine laboratory tests remains unclear. Methods In this case-control…
View details →Yang B, Guo Y, Li J et al. · 2026 · Preprint
Abstract Purpose This study presents the first national-scale assessment of heavy metal contamination, ecological risks, and human health implications in paired park surface dust and soil across 40 Chinese cities over a 15 years period…
View details →Rouzic FL, Lacroix J, Ehrmann A et al. · 2026 · Preprint
Abstract Background Several walking tests assess mobility and fall-related function in older adults, but their clinimetric properties remain insufficiently documented across task conditions and assessment environments. Augmented reality…
View details →Qian MY, He LY, Lan P et al. · 2026 · International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases
This study aimed to identify predictors of outcomes and evaluate the therapeutic impact of surgical intervention in CM patients, with a specific focus on the growing HIV-negative population in East Asia. We conducted a single-center…
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