Negative / Null Result ReportOpen accessMedicine (General)
Guo Zheng, Huiling Gao, Zhao Jin et al. · 2026 · Frontiers in Medicine
BackgroundPreservation of ovarian perfusion is a critical consideration during uterine artery embolization (UAE), as inadvertent disruption can reduce ovarian reserve. Given the complex and variable anatomy of ovarian blood supply, this study aimed to characterize its anatomical origins and variations using digital subtraction angiography (DSA) in patients undergoing UAE for cesarean scar pregnancy (CSP).MethodsThis retrospective study included patients with type II or III CSP who underwent first-time UAE at Heibei Maternity Hospital, China, between August 2020 and October 2024. Pre-embolizati
View details →DOI: 10.3389/fmed.2026.1730033 Negative / Null Result ReportOpen accessHuman anatomy
Ricardo Jonker, Glen J. Paton, Shahed Nalla · 2025 · Translational Research in Anatomy
Background: This study investigated the angulation of the odontoid process in a South African skeletal population to establish normative vertical angulation in the sagittal plane and assess variations across population affinity groups, biological sexes, and age categories. The study also investigated standardizing techniques for measuring the angle of the odontoid process. Methods: A cross-sectional study was conducted on 200 cervical axis vertebrae from the Raymond A. Dart Collection. Angulation measurements were taken using digital photographs, ImageJ software and statistical analyses (one-w
View details →DOI: 10.1016/j.tria.2025.100388 Negative / Null Result ReportOpen accessMedicine
Huang C, Wu M, Li Y et al. · 2026 · Clinical, cosmetic and investigational dermatology
Background Androgenetic alopecia (AGA) is the most common type of hair loss, and platelet-rich plasma (PRP) has emerged as a promising therapy. However, preparation methods may influence clinical outcomes. Objective To compare buffy coat…
View details →DOI: 10.2147/ccid.s606548 Negative / Null Result Report
mbarek NB · 2026 · Preprint
Abstract This study examines the long-run and short-run relationships between water stress, agricultural efficiency, energy use, and CO₂ emissions in six GCC countries over the period 1992–2023. Using second-generation panel econometric…
View details →DOI: 10.21203/rs.3.rs-8844668/v1 Negative / Null Result ReportOpen accessMedicine
Pramitra B, Al Musadieq M, Afrianty TW et al. · 2026 · F1000Research
Although digital transformation in port management has been widely discussed, previous studies have not extensively examined how organizational capabilities translate into performance through digital adoption at ports. This study addresses…
View details →DOI: 10.12688/f1000research.176261.3 Negative / Null Result ReportMedicine
Mehrabi A, Mohamadi-Nejad A, Ghorbani M et al. · 2026 · Brazilian journal of biology = Revista brasleira de biologia
Contract farming has gained popularity in recent years. Understanding farmers' preferences for contracts can help make contracts more sustainable and profitable. Therefore, the present study aimed to investigate farmers' preferences for…
View details →DOI: 10.1590/1519-6984.299694 Negative / Null Result ReportMedicine
Kim J, Cho Y · 2026 · Archives of environmental & occupational health
This study explored the impact of exposure to nonstandard work on workers' depression and suicidal ideation. Using data from the 12th to 18th waves of the Korea Welfare Panel Study, longitudinal analyses were conducted employing cox…
View details →DOI: 10.1080/19338244.2026.2685604 Negative / Null Result Report
Vargas-Santillan A, Rutiaga-Quiñones JG, Martínez-Cinco MA et al. · 2026 · Preprint
Abstract In the present study, the factors and interactions affecting the degree of delignification, brightness level, and various physico-mechanical properties of Kraft pulp were analyzed by subjecting it to ultraviolet (UV) light…
View details →DOI: 10.21203/rs.3.rs-8744525/v1 Negative / Null Result ReportMedicine
Bayrami M, Dadashi Mazraeh S · 2026 · Acta psychologica
This study compared the effects of cognitive rehabilitation and binaural beats on creativity, psychological well-being, and academic performance in 45 undergraduate students using a quasi-experimental pretest-posttest design with a control…
View details →DOI: 10.1016/j.actpsy.2026.107319 Negative / Null Result ReportMedicine
Agbajelola VI, Roachell WD, Lane GS et al. · 2026 · Acta tropica
Chagas disease remains an important public health concern across the Americas, affecting both human and animal populations. The triatomine bug Rhodnius prolixus, an obligate hematophagous vector of Trypanosoma cruzi, is commonly associated…
View details →DOI: 10.1016/j.actatropica.2026.108097 Negative / Null Result Report
Dao T, Khuc VQ · 2026 · Preprint
Abstract Foreign direct investment (FDI) is widely regarded as a catalyst for economic growth in developing countries, yet its growth effects remain heterogeneous across country contexts. This study examines how macroeconomic and…
View details →DOI: 10.21203/rs.3.rs-9616690/v1 Negative / Null Result Report
Heitzig C, Mackenna B, Rehkopf D · 2026 · Preprint
Incidence of type 2 diabetes is increasing at ages when education, work, family, and financial transitions are taking place, yet we lack robust evidence of whether earlier treatment changes life-course outcomes and over which time span…
View details →DOI: 10.64898/2026.06.06.26355069 Negative / Null Result Report
Ostad-Ali-Askari K, Vanani HR · 2026 · Preprint
Abstract In this article, the effect of water quality on the hydraulic parameters of furrow irrigation was tested with 60 experiments with the quality of fresh water (FW), magnetic (MW) and non-magnetic effluent (WW). It was found that…
View details →DOI: 10.21203/rs.3.rs-5950807/v1 Negative / Null Result ReportOpen accessMedicine
Csontos J, Brown N, Edwards A et al. · 2026 · BMC public health
BACKGROUND: Adults (age 18–64 years) are recommended 150–300 min of moderate-to-vigorous or 75–150 min of vigorous-intensity physical activity per week. Irrespective, the number of women not meeting recommended physical activity is 5%…
View details →DOI: 10.1186/s12889-026-27122-9 Negative / Null Result ReportOpen accessMedicine
Corcoran E, Samuel Z, Force A et al. · 2026 · Orthopaedic journal of sports medicine
Background Osteochondral defects (OCDe) of the knee in pediatric patients can significantly impact long-term joint function. This study aimed to evaluate the impact of lesion size on patient characteristics, treatment decisions, and…
View details →DOI: 10.1177/2325967126s00110 Negative / Null Result ReportOpen accessMedicine
Castro M, Carrasco-Zambrano N, Pezo F et al. · 2026 · Frontiers in veterinary science
The routine prophylactic use of antibiotics in sperm preservation for reproductive biotechnologies poses increasing concerns due to its potential role in promoting antimicrobial resistance. Therefore, developing storage systems that…
View details →DOI: 10.3389/fvets.2026.1774926 Negative / Null Result Report
Abebe GM, Demissie WM, Zewdie MC · 2026 · Preprint
Abstract Mechanization has immense potential to improve agricultural productivity and overall production, while crop–livestock diversification plays a crucial role in enhancing nutrition security; however, the combined effects of…
View details →DOI: 10.21203/rs.3.rs-10046750/v1 Negative / Null Result ReportOpen accessMedicine
Belnap MA, Witkiewitz K, Schacht JP et al. · 2026 · Alcohol, clinical & experimental research
Background The U.S. Food and Drug Administration (FDA) recommends a minimum duration of 6 months for randomized controlled trials (RCTs) evaluating pharmacotherapies for alcohol use disorder (AUD). The relationship between trial length and…
View details →DOI: 10.1111/acer.70306 Negative / Null Result Report
Caldana M, Rusconi E · 2026 · Preprint
Olfaction is one of our most archaic senses but its central mechanisms are lesser known than those of other senses. In this work, we address a possible link between olfactory stimuli and mental spatial representations. Although olfactory…
View details →DOI: 10.31234/osf.io/nk3ty_v4 Negative / Null Result Report
Ajit A · 2026 · Preprint
Abstract Automated diabetic retinopathy (DR) screening achieves specialist-level accuracy on curated benchmarks, yet subgroup performance disparities remain poorly understood mechanistically. We introduce the Optic Disc Colour Ratio…
View details →DOI: 10.21203/rs.3.rs-10133196/v1 Negative / Null Result ReportMedicine
Orihuela CA, Dotson B, Sharff A · 2026 · Journal of health psychology
Food insecurity continues to be a critical social determinant of health in the United States. Existing research on food insecurity within clinical populations has focused on specific health conditions. However, this approach may limit the…
View details →DOI: 10.1177/13591053261448102 Negative / Null Result ReportMedicine
Noll D, Stapleton P, O'Callaghan M · 2026 · BJU international
Objective To calculate additional information from urological trials which do not report statistically significant results, and assess whether language manipulation is used when such studies were reported. Materials and methods Many…
View details →DOI: 10.1111/bju.70140 Negative / Null Result ReportMedicine
Cai X, Zhou L, Lü M et al. · 2026 · Chaos (Woodbury, N.Y.)
We study resilience in collective behaviors of "next-generation reservoir computers" in terms of transmitted signal distortion. Specifically, we introduce an interactive communication scheme and achieve synchronization between two…
View details →DOI: 10.1063/5.0332365 Negative / Null Result ReportOpen accessMedicine
Lisnanti EF, Lokapirnasari WP, Al-Arif MA et al. · 2025 · Open veterinary journal
Background Broiler livestock supports the fulfillment of animal protein in a country where the meat price is affordable for the wider population. However, its progress faces numerous challenges, with colibacillosis, induced by APEC, being…
View details →DOI: 10.5455/ovj.2025.v15.i11.41 Negative / Null Result ReportOpen accessMedicine
Ben Maaoui K, Delleli S, Jebabli A et al. · 2026 · Nutrients
Background/Objectives : Although creatine (Cr) supplementation is well established for enhancing strength exercise adaptations, limited evidence exists regarding whether the timing of a single Cr dose relative to exercise acutely…
View details →DOI: 10.3390/nu18111789 Negative / Null Result ReportMedicine
Arslan G, Karaçul FE · 2026 · Psychological reports
Childhood adversity is consistently associated with long-term psychological challenges, most notably impaired self-regulatory capacities and lower levels of subjective well-being (SWB). The present study examined the associations among…
View details →DOI: 10.1177/00332941261457385 Negative / Null Result Report
Rahmani N, Bahramkhani M, Alizadeh A et al. · 2026 · Preprint
Abstract Background: Social media dependency and risk-taking behaviors are common among adolescents, especially girls. Excessive social media use can lead to negative consequences, including increased risky behaviors. This study evaluated…
View details →DOI: 10.21203/rs.3.rs-9854238/v1 Negative / Null Result Report
SahihAlnasab SS, Doostdar A, Khabazkhoob M et al. · 2026 · Preprint
Abstract Background: The aim of this study was to investigate the relationship between nighttime sleep duration and tear film parameters and dry eye symptoms. Design: This is a cross-sectional observational study conducted among students.…
View details →DOI: 10.21203/rs.3.rs-10045190/v1 Negative / Null Result ReportMedicine
Ninomiya S, Koh S, Ueshima S et al. · 2026 · Eye & contact lens
Objectives To evaluate the efficacy of extended depth-of-focus (EDOF) soft contact lenses with different optical profiles in controlling myopia progression and their effect on visual function in Japanese children. Methods In this 12-month…
View details →DOI: 10.1097/icl.0000000000001294 Negative / Null Result ReportMedicine
Sears J, Garlea VO, Lederman D et al. · 2026 · Physical review letters
FeF_{2} is a prototypical rutile antiferromagnet recently proposed as an altermagnet, with a magnetic symmetry that permits spin-split electronic bands and chiral magnons. Using very-high-resolution inelastic neutron scattering on a single…
View details →DOI: 10.1103/g6dt-rf8c 