Negative / Null Result ReportMedicine
Qureshi N, Pevnick JM, Torbati SS et al. · 2026 · American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists
Purpose Obtaining accurate medication histories for older adults in the emergency department (ED) is essential but challenging due to operational barriers and incomplete electronic health records (EHRs). We implemented a…
View details →DOI: 10.1093/ajhp/zxag157 Negative / Null Result Report
McLean JC, Gogan T, Sivasubramaniam D · 2026 · Preprint
Abstract This study investigated whether cancel culture is driven by the retributive impulse and the role of echo chambers in online platforms. An anonymous online survey was utilised for this single-factor between-subjects study. Retained…
View details →DOI: 10.21203/rs.3.rs-8883436/v1 Negative / Null Result ReportMedicine
Oyetunji TP, Chan-Golston AM, Ha S et al. · 2026 · Journal of studies on alcohol and drugs
Objective Amid rising cannabis use, declining perceived harm, and policy liberalization over the past 15 years, we examined whether the association between cannabis use disorder (CUD) and past-year suicidal ideation among U.S. adults…
View details →DOI: 10.15288/jsad.25-00481 Negative / Null Result ReportMedicine
Sleightholm S, O'Neill C · 2026 · Psychological reports
Suicide is a pernicious global issue with many serious impacts. Despite females being more likely to attempt suicide, males are around three times more likely to die from suicide, with one contributor being normative alexithymia, a reduced…
View details →DOI: 10.1177/00332941261427381 Negative / Null Result Report
Ross A, Logan CN, Thompson JJ et al. · 2026 · Preprint
ABSTRACT The Mnemonic Similarity Task (MST) is highly sensitive to age-related cognitive decline in humans and has been adapted for rodents using 3D objects, where aged animals show deficits in discriminating similar lures. To improve…
View details →DOI: 10.64898/2026.04.30.722044 Negative / Null Result ReportMedicine
Olatunji I, Liu J, Profit J · 2026 · Pediatric research
Background Structural inequities in neonatal care may influence human milk (HM) feeding outcomes. We examined whether allied health service (AHS) availability differs between safety-net (sn) and non-snNICUs and its association with HM use…
View details →DOI: 10.1038/s41390-026-04939-z Negative / Null Result ReportMedicine
Skoblow HF, Tracy EL, Gilligan M · 2026 · The journals of gerontology. Series B, Psychological sciences and social sciences
Objectives The Model of Dynamic Association Between Relationship Functioning and Sleep positions sleep as a fundamentally dyadic and reciprocal process, underscoring the need to study sleep within its relational context and highlighting…
View details →DOI: 10.1093/geronb/gbag067 Negative / Null Result Report
GÜNEY MC, SARIBOĞA Y, GÜNEY S et al. · 2026 · Preprint
Abstract This study aimed to identify the psychological determinants of the preference for vaginal birth after cesarean versus cesarean after vaginal birth and to develop a prognostic nomogram. This cross-sectional study included 400…
View details →DOI: 10.21203/rs.3.rs-8945877/v1 Negative / Null Result Report
Tornero I, Barta B, Hamer AJ et al. · 2026 · Preprint
ABSTRACT Mosquitoes in urban environments are considered unpleasant by citizens, and they can represent serious health risks as disease vectors. Invasive Aedes species are continuously spreading in Europe and have been increasingly…
View details →DOI: 10.64898/2026.04.07.716928 Negative / Null Result ReportMedicine
Petzel ZW, Sowerby L, Crozier C et al. · 2026 · Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors
Objective University students engage in heavy episodic drinking more frequently than nonuniversity peers. While social activities unique to the university experience likely contribute to heavy episodic drinking, drastic lifestyle changes…
View details →DOI: 10.1037/adb0001157 Negative / Null Result ReportMedicine
Bunz M, Derhardt R, Seehagen S et al. · 2026 · Development and psychopathology
Emotion regulation (ER) difficulties in early childhood are considered potential predictors of later psychopathology, particularly in children of mothers with Borderline Personality Disorder (BPD). This multicenter study examined ER in…
View details →DOI: 10.1017/s0954579426101345 Negative / Null Result ReportMedicine
van Vliet N, De Caluwé E · 2026 · Acta psychologica
Academic burnout is a growing concern among Dutch university students, with research suggesting that 59% of them experience such symptoms. This study investigated the relationship between the Dark Triad traits - psychopathy, grandiose…
View details →DOI: 10.1016/j.actpsy.2026.106840 Negative / Null Result ReportMedicine
Buzzelli S, Caprioli L · 2026 · The Journal of sports medicine and physical fitness
Background Fast reaction is critical in sports, and understanding the factors that influence it can be a valuable contribution for coaches and sports scientists. Methods This cross-sectional study presents a descriptive analysis of…
View details →DOI: 10.23736/s0022-4707.26.17414-3 Negative / Null Result Report
Luić L, Barbić M, Rončević M · 2026 · Preprint
The interaction between humans and artificial intelligence has become a critical channel for information exchange, yet no quantitative, theoretically grounded framework exists for measuring information efficiency in human–AI communication.…
View details →DOI: 10.20944/preprints202602.1562.v1 Negative / Null Result ReportMedicine
Khan F, Pandit D, Lalan S et al. · 2026 · Biomedical physics & engineering express
Alzheimer's disease (AD) classification using machine learning has increasingly relied on multimodal inputs such as Magnetic Resonance Imaging (MRI), cognitive assessments, and biological markers. This study evaluates whether integrating…
View details →DOI: 10.1088/2057-1976/ae4630 Negative / Null Result ReportMedicine
Hshieh TT, Kunicki ZJ, Fong TG et al. · 2026 · JAMA internal medicine
Importance Postoperative delirium is associated with long-term cognitive decline in older adults. This might be caused by the delirium itself or because delirium is more common in persons who are ill and frail, and these conditions are…
View details →DOI: 10.1001/jamainternmed.2026.1910 Negative / Null Result ReportMedicine
Anwar S, Younas R, Iqbal M et al. · 2026 · Clinical psychology & psychotherapy
Obsessive-compulsive disorder (OCD) is a heterogeneous condition characterized by a wide range of symptoms and maladaptive beliefs. However, previous research has often studied these symptoms and metacognitive beliefs in isolation,…
View details →DOI: 10.1002/cpp.70287 Negative / Null Result Report
Tokushige A, Akasaki Y, Shibata K et al. · 2026 · Preprint
Background: /Objectives: We aimed to evaluate the efficacy and safety of trigonelline-rich Sakurajima radish on vascular endothelial function in patients with metabolic syndrome (MetS). Methods: In this multicenter, open-label, randomized,…
View details →DOI: 10.20944/preprints202604.1953.v1 Negative / Null Result Report
Bielen T · 2025 · Preprint
Conversational AI holds promise for scalable mental health screening, yet its impact on therapeuticalliance and user perceptions remains underexplored. This preregistered, cross-sectional, randomizedmixed-methods experiment (N = 149)…
View details →DOI: 10.31234/osf.io/32ztw_v2 Negative / Null Result ReportMedicine
Kim SK, Shin JH, Ji YJ et al. · 2026 · Journal of hazardous materials
Estuarine-coastal regimes are critical links between land and the open ocean, yet their role as microplastics (MPs) sinks and the mechanisms governing MP retention remain poorly constrained. We conducted a coupled water-sediment survey in…
View details →DOI: 10.1016/j.jhazmat.2026.142508 Negative / Null Result Report
Omer AA, Abdelaziz MO, Bashir RE et al. · 2026 · Preprint
Abstract Background Diabetes and hypertension constitute a dual public health burden, particularly in low-income countries. While urban-rural disparities in healthcare access are well documented, this study aims to compare the prevalence,…
View details →DOI: 10.21203/rs.3.rs-9173542/v1 Negative / Null Result ReportMedicine
Commauda S, Maglieri V, Prato-Previde E et al. · 2026 · Animals : an open access journal from MDPI
Dogs exhibit sophisticated interspecific communication skills, including the use of visual signals to indicate the location of inaccessible resources, known as showing behaviour. Previous studies have investigated factors such as age and…
View details →DOI: 10.3390/ani16050760 Negative / Null Result ReportMedicine
Kara D, Bohn A · 2026 · Memory (Hove, England)
The present study investigated whether remembering the distant versus the recent personal past influences self-continuity levels and expected future event characteristics in a sample of immigrants. Seventy-three Turkish immigrants living…
View details →DOI: 10.1080/09658211.2026.2639553 Negative / Null Result Report
Mądziel M, Campisi T · 2026 · Preprint
Plug-in hybrid electric vehicles (PHEVs) are critical to the EU s decarbonization strategy, yet their real-world climate benefits remain uncertain. This study presents a large-scale analysis of real-world PHEV performance using on-board…
View details →DOI: 10.20944/preprints202601.1847.v1 Negative / Null Result Report
Ivanov S, Fosse S, dos Reis M et al. · 2026 · Preprint
Bayesian inference of divergence times for extant species using molecular data is an unconventional statistical problem: Divergence times and molecular rates are confounded, and only their product, the molecular branch length, is…
View details →DOI: 10.64898/2026.02.28.708707 Negative / Null Result Report
Thong S, Hendrikse J, Chong TT- et al. · 2026 · Preprint
Motor and episodic memories are classically conceptualised as distinct memory domains. However, both memory sequences are characterised by order and timing of their elements. Generalisation has been previously documented between these…
View details →DOI: 10.64898/2026.01.10.698757 Negative / Null Result ReportMedicine
Giovenco D, Rousseau E, Wallace M et al. · 2026 · AIDS (London, England)
Objective To examine associations between mental health, substance use, and pre-exposure prophylaxis (PrEP) persistence among South African adolescent girls and young women (AGYW). Design A longitudinal analysis of a decentralized PrEP…
View details →DOI: 10.1097/qad.0000000000004509 Negative / Null Result ReportMedicine
Visser K, Keulen J, Bodden D et al. · 2026 · Journal of autism and developmental disorders
Purpose In clinical practice and research, there is growing interest in transdiagnostic interventions, such as Acceptance and Commitment Therapy (ACT), for patients with autism spectrum disorder (ASD), due to the pervasive nature of the…
View details →DOI: 10.1007/s10803-026-07234-2 Negative / Null Result ReportOpen accessMathematics
Ziling Ma, Ángel López Oriona, Hernando Ombao et al. · 2026 · arXiv
We study adaptive pooling under predictive heterogeneity in high-dimensional multivariate time series forecasting, where global models improve statistical efficiency but may fail to capture heterogeneous predictive structure, while naive specialization can induce negative transfer. We formulate adaptive pooling as a statistical decision problem and propose a validation-driven framework that determines when and how specialization should be applied. Rather than grouping series based on representation similarity, we define partitions through out-of-sample predictive performance, thereby aligning
Negative / Null Result ReportOpen accessMathematics
Rong Chen, Simone Giannerini, Greta Goracci et al. · 2025 · arXiv
We develop an estimation methodology for a factor model for high-dimensional matrix-valued time series, where common stochastic trends and common stationary factors can be present. We study, in particular, the estimation of (row and column) loading spaces, of the common stochastic trends and of the common stationary factors, and the row and column ranks thereof. In a set of (negative) preliminary results, we show that a projection-based technique fails to improve the rates of convergence compared to a "flattened" estimation technique which does not take into account the matrix nature of the da
