A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.
19840 results in Negative / Null Result Report · page 272 of 662
Bednarek MM, Walędziak M, Zuzaniuk MJ et al. · 2026 · Preprint
Abstract Purpose To compare operative outcomes, postoperative complications, and weight-loss effectiveness between three-trocar and conventional five-trocar laparoscopic sleeve gastrectomy (LSG). Methods A retrospective cohort study of 100…
Çavdarcı H, Sarıca M, Erensoy K et al. · 2026 · Tropical animal health and production
This study investigated the effects of different flooring designs on the welfare and behavioral traits in fast-growing broilers. A total of 600 day-old Ross-308 chickens were randomly allocated to five treatment groups: fully littered…
Bruni M, Perina F, Figueiredo J et al. · 2026 · Aquatic toxicology (Amsterdam, Netherlands)
Metallic corrosion poses an economic problem worldwide and is often mitigated by adding corrosion inhibitors (CIs) to protective coatings. Conventional CIs, such as 2-mercaptobenzothiazole (MBT) and benzotriazole (BTA), exhibit toxicity to…
Dubowitz H, Belanger R, Magder L et al. · 2026 · Academic pediatrics
Hypothesis A Maintenance of Certification-4 activity (MOC) will help primary care practices implement the Safe Environment for Every Kid (SEEK) approach to prevent child maltreatment more effectively than simpler independent online…
Chow JW, Yablon SA, Stokic DS · 2026 · NeuroRehabilitation
BackgroundAlthough several studies have examined gait changes associated with continuous intrathecal baclofen (CITB) infusion for spasticity in ambulatory patients with acquired brain injury (ABI), none has included a control…
Gyoten T, Akatsu T, Kuroda T et al. · 2026 · Journal of cardiothoracic surgery
Background This study aimed to evaluate clinical outcomes after surgical aortic valve replacement with third-generation Edwards (Edwards Lifesciences, Irvine, CA, USA) 19-mm-labeled aortic valve bioprostheses, including a rapid-deployment…
Shen J, Yu X, Xu J et al. · 2026 · Microorganisms
Inflammatory bowel disease (IBD) is associated with microbial dysbiosis, yet subtype-specific alterations in the tongue-coating microbiome remain insufficiently characterized. In this cross-sectional study, tongue-coating samples from 158…
Tanrıverdi S, Yeşiltepe S · 2026 · BMC oral health
Background Antidepressants are widely prescribed group of medications frequently associated with xerostomia. Although alterations in salivary flow among antidepressant users have been extensively investigated, there is a paucity of data…
Sun Y, Lee J, Wen X et al. · 2026 · Research quarterly for exercise and sport
The basketball jump shot is a fundamental skill in competitive play, and defensive pressure has been shown to influence movement execution and post-landing control. This study investigated post-landing stability during basketball jump…
Ogata M, Kido J, Nagayoshi Y et al. · 2026 · Preprint
Abstract Background Vitamin D deficiency is common in early childhood and may be associated with food allergy (FA). However, the relationship between vitamin D status and FA in infants remains unclear. This study aimed to evaluate vitamin…
Suzuki H · 2026 · BMC ophthalmology
Background Previous studies have reported lower thermal profiles with torsional ultrasound than with longitudinal ultrasound; however, the mechanical determinants underlying this difference remain incompletely understood. In particular,…
Werneburg F, Beschauner J, Felsberg M et al. · 2026 · Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons
Background Talonavicular (TN) arthrodesis can be performed open or minimally invasively (MIS); whether MIS reproduces the radiographic medial-column re-alignment of open surgery remains unclear. Methods Retrospective cohort of 56 feet (32…
Khan N, Sundararajan R, Caldera F et al. · 2026 · Inflammatory bowel diseases
Background Data describing the incidence and clinical outcomes of respiratory syncytial virus (RSV) infection among patients with inflammatory bowel disease (IBD) are limited. Methods We conducted a nationwide retrospective cohort study…
Şen O, Çakmak SK, Hayran Y et al. · 2026 · Cutaneous and ocular toxicology
Background Rosacea is a chronic inflammatory dermatosis in which oxidative stress has been implicated as a pathogenic factor. Ischemia-modified albumin (IMA) is a serum biomarker of oxidative stress not previously evaluated in rosacea.…
Dicken S, DeLeon N, Gutierrez EJ et al. · 2026 · American journal of pharmaceutical education
Objective To investigate whether generative artificial intelligence (genAI) can improve pharmacy assessment practices, specifically, rubric development, and the grading of student-written reflection assignments. Methods Sample…
Konysbek Y, Turar A, Molotov-Luchanskiy VB et al. · 2026 · Metabolites
Background/Objectives : Anemia and iron dysregulation are common in chronic heart failure (CHF), but additional metabolic mechanisms may contribute to these alterations. This study aimed to evaluate purine metabolism and oxidative stress…
Noori M, Christiansen EH, Hougaard M et al. · 2026 · Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
Background The polymer-free biolimus A9-coated BioFreedom stent (BF-BCS) releases a lipophilic drug that may provide a potent anti-inflammatory effect in patients with acute coronary syndromes (ACS). Five-year efficacy and safety of BF-BCS…
Greco M, Mirabelli M, Misiti R et al. · 2026 · Diagnostics (Basel, Switzerland)
Background: Celiac disease (CD) is frequently associated with autoimmune disorders such as Hashimoto's thyroiditis and type 1 diabetes. Endocrine-specific autoantibodies may emerge during the course of CD, but their true prevalence and…
Krol MA, Skodova T, Jellema T · 2026 · Autism research : official journal of the International Society for Autism Research
We investigated possible atypicalities in activation of cortical motor-related circuits in young adults with Autism Spectrum Conditions (ASC) and typical-development (TD) when observing others' actions. Activation of these circuits is…
Park JH, Jeon S, Seo MS · 2026 · Clinical implant dentistry and related research
Objectives This retrospective study evaluated the long-term effect of implant adjacency on the prognosis of adjacent natural teeth. Materials and methods We included 345 patients who underwent posterior implant placement and prosthetic…
Tung NT, Matsumoto Y, Yokoshima S et al. · 2026 · The Journal of the Acoustical Society of America
This research investigated discomfort responses to combined whole-body vibration and noise in Vietnamese and Japanese participants. Twenty stimuli, comprising five vibration magnitudes and six noise levels induced by ground transportation…
Ay O, Bahçeci P, Taşkıran D et al. · 2026 · BMC pregnancy and childbirth
Background To compare preterm prelabor rupture of membranes (PPROM) at 34 + 0-36 + 6 weeks with term prelabor rupture of membranes at ≥ 37 weeks in terms of obstetric outcomes, maternal morbidity, and short-term neonatal outcomes. Methods…
Xyda G, Bekas V, Kastrinis A et al. · 2026 · Studies in health technology and informatics
The conservative management of Adolescent Idiopathic Scoliosis (AIS) with rigid bracing imposes a significant psychological burden. This study investigated the convergence or divergence of views between female adolescents with AIS and…
Galmiche L, Kersting UG, Bill K · 2026 · The Knee
Background Non-contact anterior cruciate ligament (ACL) injuries often occur during rapid decelerations and change-of-direction tasks. Although most high-intensity movements in team sports follow curved trajectories, the biomechanical…
Albayrak M, Guner E, Ugur F et al. · 2026 · Biomedicines
Background: Ibandronate is a nitrogen-containing bisphosphonate used in osteoporosis; however, its relationship with vertebral-fracture-related outcomes, pain trajectories, and broader inflammatory-skeletal signaling remains incompletely…
Paasch C, Svendrovski A, Usher J et al. · 2026 · Hernia : the journal of hernias and abdominal wall surgery
Purpose This study aims to evaluate the impact of frailty on postoperative outcomes after Shouldice primary inguinal hernia Repair (SPIHR) as a quality control measure in a highly standardized elective setting. Methods This quality…
Ates C, Karaaslan O · 2026 · BMC pregnancy and childbirth
Background Accurate differentiation between constitutionally small fetuses and those affected by true fetal growth restriction (FGR) remains a major clinical challenge, particularly in fetuses with estimated fetal weight between the 3rd…
Mohan S, Reagu S, Lindow S et al. · 2026 · Journal of interprofessional care
This study aimed to assess a Middle Eastern maternity team's perceptions and attitudes toward interprofessional education (IPE), examine factors that may influence these perceptions, and consider their potential implications. Within…
Rustemeyer J, Ponelis E, Sari-Rieger A · 2026 · Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
Total alloplastic temporomandibular joint replacement (TMJ-AR) is an established treatment for end-stage temporomandibular joint disease; however, comparative data on different prosthesis designs remain limited. This retrospective 10-year…
Angouraj Taghavi E, Emamian MH, Hashemi H et al. · 2026 · Scientific reports
This study aimed to compare ocular biometrics between diabetic and non-diabetic individuals. Understanding these biometric differences may inform cataract surgery planning and glaucoma risk assessment in diabetic patients. Participants…