21,742 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.
Glavina A, Gravić A, Demo J et al. · 2026 · Healthcare (Basel, Switzerland)
Background/objectives Over the past decade, the popularity of smokeless tobacco products, particularly heated tobacco products (HTPs), has increased among adolescents and young adults. This study aimed to determine the effects of HTPs and…
View details →Dogan R, Kulaksiz Y, Yeni̇gun A et al. · 2026 · Sleep & breathing = Schlaf & Atmung
Objective Diagonal ear lobule fold (DELF)(Frank sign); It is a diagonal fold in the earlobe at an angle of about 45°, running diagonally from the tragus to the edge of the auricle at varying depths. In our study, the relationship between…
View details →Ruengsiriphakakul S, Bumrerraj S, Thaenkham T · 2026 · Journal of education and health promotion
Background Iodine deficiency remains a global public health problem. Urinary iodine concentration (UIC) in pregnant women is a key indicator of iodine status in the population. Knowledge (K), attitude (A), and practice (P) levels of…
View details →Zhang T, Xie Y, Yang C et al. · 2026 · Virulence
The Taiwan-I-type infectious bronchitis virus (IBV) has become one of the most dominant and threatening genotypes circulating in China poultry farms. In this study, we characterized the Taiwan-I-type IBV strain GX-NN200723 and evaluated…
View details →Rathore S, Bhushan J, Uppal AS et al. · 2026 · Journal of conservative dentistry and endodontics
Background Treatment of teeth with immature apices is difficult to manage by conventional endodontics. Apical barrier formation using bioceramic materials offers a biologically favorable solution, providing a hermetic seal that supports…
View details →Loomba P, Nayak M, Podder S et al. · 2026 · Annals of African medicine
Background Postoperative nausea and vomiting (PONV) are a prevalent complication after laparoscopic surgeries, with an incidence reaching up to 63% without antiemetic prophylaxis. Objectives To evaluate the efficacy of dexamethasone and…
View details →Biyik Bayram S, Gülnar E, Çalişkan N et al. · 2026 · Computers, informatics, nursing : CIN
This study investigated the effect of virtual simulation of parenteral medication administrations on nursing students' knowledge and skills. This randomized controlled experimental study adopted a pretest-posttest research design. The…
View details →Gökay GD, Şenol M, Oyar P et al. · 2026 · BMC oral health
Purpose The purpose of this study was to assess the surface roughness, color stability, and contact angle of lithium disilicate glass-ceramic (LD) and zirconia-reinforced lithium silicate (ZLS) ceramics following surface finishing and to…
View details →Bastug Guven E, Genc Sen O · 2026 · Medical science monitor : international medical journal of experimental and clinical research
BACKGROUND Sodium hypochlorite (NaOCl) is the most commonly used irrigant in root canal treatment because of its antimicrobial activity and tissue-dissolving capacity. Since these properties are related to its physicochemical…
View details →Tamura Y, Tojima H, Takizawa D et al. · 2026 · Cancers
Background The number of elderly patients with hepatocellular carcinoma (HCC) has been increasing worldwide. This study aimed to evaluate the clinical outcomes of stereotactic body radiation therapy (SBRT) for patients aged ≥80 years with…
View details →Xie S, Hong W, Huang L et al. · 2026 · Brazilian journal of otorhinolaryngology
Objective This study aimed to evaluate the effect of Hyperbaric Oxygen Therapy (HBOT) combined with steroids as initial treatment on the prognosis of patients with Idiopathic Sudden Sensorineural Hearing Loss (ISSNHL) by using propensity…
View details →Zhang L, Luo L, Xia Q et al. · 2026 · Frontiers in psychiatry
Social communication disorder is a core impairment in children with Autism Spectrum Disorder (ASD) and is essential for establishing connections with the external world. This study aimed to explore the effects of Mandala drawing therapy on…
View details →Ettefaghdoost M, Haghighi H, Haghdoost A · 2026 · Veterinary medicine and science
Background Natural carotenoids have gained considerable attention in aquaculture due to their potential to enhance growth performance, physiological status, and product quality in crustaceans. However, limited information is available…
View details →Can Ş, Eren H · 2026 · Computers, informatics, nursing : CIN
Measuring noninvasive blood pressure (NIBP) is a fundamental skill that nursing students are trained to master, and they are expected to possess comprehensive knowledge and proficiency in this procedure to ensure accurate measurements. The…
View details →Bugacov H, Cusmai C, Li K et al. · 2026 · Transplant international : official journal of the European Society for Organ Transplantation
This study investigated acute rejection in ABO-compatible versus ABO-identical lung transplants from 2005-2023, with a secondary objective of comparing 5-year survival. Lung transplantation improves quality of life and survival; however,…
View details →Cevik A, Alan S · 2026 · Women and birth : journal of the Australian College of Midwives
Background Perinatal mental health issues are a global problem that constitutes a significant part of the burden on maternal and infant health. This situation could pose a risk, especially for immigrant women, who are a vulnerable group.…
View details →Nobari H, Kamis O, Atıcı AR et al. · 2026 · BMC sports science, medicine & rehabilitation
Background It is widely accepted that match venue influences technical, tactical, fitness, nutrition, the importance of the match, sleep, and psychological factors. This study investigates the impact of match venue (i.e., home vs. away)…
View details →Obembe OO, George ET, Mustapha RA et al. · 2026 · BMC pharmacology & toxicology
BACKGROUND: 3,4-Methylenedioxymethamphetamine (MDMA) is a psychostimulant known for its social and empathogenic effects. However, its long-term impact on sexual performance and reproductive functions remain controversial. OBJECTIVE: In…
View details →Jiang Z, Tan X, Zhang M et al. · 2026 · Preprint
Abstract Objective : To explore the clinical efficacy of percutaneous vertebroplasty (PVP) via Kambin's triangle in the treatment of senile spinal deformity accompanied by vertebral compression fractures. Methods : A retrospective analysis…
View details →Hammad A, Saleh ME, Shehab AA · 2026 · Cureus
Background Adolescent idiopathic scoliosis (AIS) is the most common form of spinal deformity in adolescents, characterized by a three-dimensional curvature of the spine with unknown etiology. Surgical intervention is indicated in…
View details →Bozkurt SN, Kocasli S · 2026 · BMC complementary medicine and therapies
AIMS: The aim of this study was to the effects of music during the endoscopy procedure on anxiety, pain and vital signs. METHODS: This study was conducted as a randomized, controlled, double-blind trial. The study population consisted of…
View details →MacFarlane AJ, Larson JH, Kucharik MP et al. · 2026 · Journal of shoulder and elbow arthroplasty
Background Presently, there is no quantifiable and objective criteria for defining severe glenoid bone loss (GBL) for primary reverse total shoulder arthroplasty (rTSA). In this study, we sought to establish quantifiable thresholds of…
View details →Ishida H, Egashira H, Asano N et al. · 2026 · Cureus
Background Inflammation- and nutrition-related biomarkers such as the neutrophil-to-lymphocyte ratio (NLR) and prognostic nutritional index (PNI) have been reported as prognostic factors for ovarian cancer. However, their clinical…
View details →Zheng X, Fu X, Shao Y et al. · 2026 · American journal of translational research
Objective To investigate the effect of remazolam combined with hydromorphone on postoperative cognitive function in elderly patients undergoing hip replacement. Methods 184 elderly patients who underwent hip replacement in Sir Run Run Shaw…
View details →Li S, Chai H, Bao W et al. · 2026 · Preprint
Abstract Background: It is commonly recommended to restore the mechanical axis to within –0° ± 3° in valgus knee. However, the situation is quite different when the alignment is –3° or 3° in the presence of a compromised MCL in Ranawat…
View details →Jin L, Zhang J, Zhang R et al. · 2026 · Ultrasonics sonochemistry
The aim of this study was to investigate the effects of ultrasound-assisted tumbling (100, 300, 500, and 700 W) with different treatment times (30, 60, 90, 120, 150, and 180 min) on the quality, myofibrillar protein structure, and protein…
View details →Abjar R, NasiriFormi E, Kazemi AH et al. · 2026 · Health science reports
Background and aims High-quality sleep, calmness, and lack of fatigue are vital for the health of critical hospital staff. Operating room personnel experience significant mental and physical stress, including anxiety and sleep…
View details →Merikhi A, Gheisari A, Kasiri P et al. · 2026 · Preprint
Abstract Background: Nocturnal Enuresis (NE), characterized by the inability to control nighttime voiding in children above five years, is one of the common problems faced by the young generation today and can result in some psychological…
View details →Zahid Habib Q, Tahir M, Bakhtawar F et al. · 2026 · Journal of stem cells & regenerative medicine
Introduction Liver diseases remain a major global health burden, with limited treatment options for advanced hepatic dysfunction. Current treatment options are limited and mainly supportive, with liver transplantation being the only…
View details →Huang F, Zhan H, Yang Y et al. · 2026 · BMC infectious diseases
Background and objective Helicobacter pylori (H. pylori) infection is associated with infectious diseases caused by pathogens such as Orientia tsutsugamushi (the causative agent of scrub typhus) and Brucella. However, the impact of H.…
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