Negative / Null Result Report
Ye-seul Park, Ja-eun Kwak, Ho-ryong Yoo et al. · 2024 · The Journal of Internal Korean Medicine
Background: Unilateral vocal cord paralysis can occur due to various causes. Among them, unilateral vocal cord paralysis that takes place after endotracheal intubation is often caused by damage to the left recurrent nerve branch during…
View details →DOI: 10.22246/jikm.2024.45.6.1309 Negative / Null Result Report
Yigit Atilgan, K. Ozgur Demirtas, A. Doruk Gunaydin · 2024 · SSRN Electronic Journal
This paper investigates whether industrial companies with higher toxic emissions outperform those with lower toxic emissions. First, the highest polluters do not consistently outperform the lowest polluters in an almost stochastic…
View details →DOI: 10.2139/ssrn.4828452 Negative / Null Result Report
Hamid Z. Ahmadi, Janna Khoroujik, Rafiqul B. Rafiq · 2011 · Journal of Business & Economics Research (JBER)
How often should a portfolio be rebalanced?<span…
View details →DOI: 10.19030/jber.v5i4.2538 Negative / Null Result Report
Alfred Rex Bunn · 2024 · Smart Tourism
The most famous tourist attractions in the southern hemisphere, in the nineteenth century were the Pink and White Terraces—New Zealand’s lost Eighth Wonder of the World. They were assumed lost in an1886 eruption. The unpublished 2018…
View details →DOI: 10.54517/st2174 Negative / Null Result Report
Alfred Rex Bunn · 2023 · Smart Tourism
The most famous tourist attractions in the southern hemisphere, in the nineteenth century were the Pink and White Terraces—New Zealand’s lost Eighth Wonder of the World. They were assumed lost in an1886 eruption. The unpublished 2018…
View details →DOI: 10.54517/st.v4i1.2174 Negative / Null Result ReportOpen accessPhysics
Patrick McDonald · 2009 · arXiv
I show how to reintroduce velocity dispersion into perturbation theory (PT) calculations of structure in the Universe, i.e., how to go beyond the pressureless fluid approximation, starting from first principles. This addresses a possible deficiency in uses of PT to compute clustering on the weakly non-linear scales that will be critical for probing dark energy. Specifically, I show how to derive a non-negligible value for the (initially tiny) velocity dispersion of dark matter particles, , where δv is the deviation of particle velocities from the local bulk flow. The calculation is essen
Negative / Null Result ReportMedicine
Zang, Yan, Dong et al. · 2026 · The Journal of craniofacial surgery
Scar is an inevitable pathological product of tissue injury repair, and pathological scars often occur in exposed areas, bringing severe psychological burden and economic losses to patients. With the popularization of digital healthcare,…
View details →DOI: 10.1097/scs.0000000000013099 Negative / Null Result ReportMedicine
Li, Sugita, Togawa et al. · 2026 · Frontiers in plant science
High planting densities in indoor horticulture often accelerate lower-leaf chlorophyll degradation, increasing trimming frequency, reducing effective photosynthetic area, and raising labor costs. While spectral composition has been widely…
View details →DOI: 10.3389/fpls.2026.1817114 Negative / Null Result ReportMedicine
Hali, Mahmoudi, Namdar et al. · 2026 · Dental research journal
Laser therapy with fluoride-containing material, such as casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), is a new technique for caries prevention. The purpose of this study is to investigate the effect of CPP-ACP, fluoride…
View details →DOI: 10.4103/drj.drj_556_24 Negative / Null Result ReportMedicine
Yang, Zhu, Chen et al. · 2026 · Frontiers in neuroscience
To observe the therapeutic effects of deep transcranial magnetic stimulation (dTMS) and repetitive transcranial magnetic stimulation (rTMS) on upper and lower limb motor dysfunction in patients with basal ganglia infarction, and to…
View details →DOI: 10.3389/fnins.2026.1870537 Negative / Null Result ReportMedicine
Yao, Fang, Xu et al. · 2026 · Frontiers in medicine
To investigate the discrepancies between fall risk and fall awareness among hospitalized elderly cataract patients, providing a basis for implementing precise fall prevention assessments and interventions in clinical practice. Using…
View details →DOI: 10.3389/fmed.2026.1851395 Negative / Null Result ReportMedicine
Yu, Li, Cai et al. · 2026 · Frontiers in medicine
This study directly compares the diagnostic performance of two routinely available, non-invasive techniques-ultrasound-derived fat fraction (UDFF) and non-contrast computed tomography (NCCT)-for screening and grading hepatic steatosis…
View details →DOI: 10.3389/fmed.2026.1799359 Negative / Null Result ReportMedicine
Mahmoud, Elrefaei, Shata et al. · 2026 · Frontiers in oral health
The literature regarding the use of injectable platelet- rich fibrin (i-PRF) for root coverage is scarce. Therefore, this RCT aimed to evaluate and compare the effect of using connective tissue graft (CTG) with and without i-PRF using the…
View details →DOI: 10.3389/froh.2026.1801423 Negative / Null Result ReportMedicine
Fu, Yao, Zhang et al. · 2026 · Frontiers in cardiovascular medicine
The safety of achieving ultra-low low-density lipoprotein cholesterol (LDL-C) levels in acute coronary syndrome (ACS) patients on dual antiplatelet therapy (DAPT), particularly regarding global coagulability, specific platelet reactivity,…
View details →DOI: 10.3389/fcvm.2026.1804585 Negative / Null Result ReportMedicine
Kurokawa, Taniguchi, Nakaniwa et al. · 2026 · Foot & ankle orthopaedics
Varus-type ankle osteoarthritis (OA) is often managed conservatively; however, surgical intervention is required in some patients. Identifying factors associated with transition to surgery may help optimize treatment timing. This…
View details →DOI: 10.1177/24730114261454964 Negative / Null Result ReportMedicine
Volarić, Žauhar, Chen et al. · 2026 · Journal of clinical medicine
Objectives : Low-intensity pulsed ultrasound (LIPUS) has been widely utilized as a biophysical modality accelerating fracture healing, particularly in bones undergoing endochondral ossification. However, its efficacy in facilitating…
View details →DOI: 10.3390/jcm15124595 Negative / Null Result ReportMedicine
Han, Lee, Jang et al. · 2026 · Journal of clinical medicine
Objective : This study aimed to compare the clinical and radiological outcomes between microscopic and unilateral biportal endoscopic (UBE) posterior cervical foraminotomy (PCF). Methods : This study included 73 patients who underwent…
View details →DOI: 10.3390/jcm15124589 Negative / Null Result ReportMedicine
Kim, Lee, Ko et al. · 2026 · Journal of clinical medicine
Background : Periprosthetic joint infection (PJI) following total knee arthroplasty (TKA) is a serious complication associated with substantial morbidity and healthcare costs. Although two-stage revision arthroplasty is widely accepted as…
View details →DOI: 10.3390/jcm15124563 Negative / Null Result ReportMedicine
Sayur, Avcı, Güler et al. · 2026 · Journal of clinical medicine
Objective: This study aimed to evaluate changes in erectile function, assessed using the International Index of Erectile Function-5 (IIEF-5), in male patients undergoing elective inguinal hernia repair and to compare outcomes according to…
View details →DOI: 10.3390/jcm15124433 Negative / Null Result ReportMedicine
Lewandowski, Wojciechowska-Durczyńska, Krawczyk-Rusiecka et al. · 2026 · Journal of clinical medicine
Background/Objectives : The Seated Saline Suppression Test (SSST) is widely used for investigation of primary hyperaldosteronism (PA); however, the impact of a one-hour sitting period prior to SSST (as recommended by the Endocrine Society,…
View details →DOI: 10.3390/jcm15124410 Negative / Null Result ReportMedicine
Apio, Canhanga, Cugala · 2026 · Insects
Fruit flies (Diptera: Tephritidae) are major pests of crops that require effective monitoring for management. This study evaluated locally available food baits for monitoring fruit flies in guava orchards in Maputo, Mozambique. It also…
View details →DOI: 10.3390/insects17060555 Negative / Null Result ReportMedicine
Li, Wang, Yi et al. · 2026 · Healthcare (Basel, Switzerland)
Background/Objectives: In ketogenic therapy for children with refractory epilepsy-a special patient group-the quality of life of primary caregivers is often overlooked. This study aimed to explore the current state of primary caregivers'…
View details →DOI: 10.3390/healthcare14121761 Negative / Null Result ReportMedicine
Çalışkan, Karpuzoğlu, Karpuzoğlu et al. · 2026 · Genes
Objective: To evaluate the efficacy of NADPH oxidase 4 and miR-146a-5p in current treatment planning for ascending aortic aneurysms, independent of aortic diameter, and to develop protocols that will ensure the treatment of ascending…
View details →DOI: 10.3390/genes17060709 Negative / Null Result ReportMedicine
Shi, Zhou, Li et al. · 2026 · Animals : an open access journal from MDPI
As a precious indigenous goose resource in China, the Zhedong white goose occupies an essential position in the domestic goose industry. However, this breed spontaneously enters a prolonged non-laying period of over two months per year,…
View details →DOI: 10.3390/ani16121899 Negative / Null Result ReportMedicine
Ma, Hu, Ma et al. · 2026 · Animals : an open access journal from MDPI
The Taiwanese loach ( Paramisgurnus dabryanus ssp. Taiwan, Dabry de Thiersant, 1872.) is an economically important aquaculture species in East Asia, and its body color directly affects its ornamental and market value. Our research group…
View details →DOI: 10.3390/ani16121849 Negative / Null Result ReportMedicine
Grzech-Leśniak, Pyrkosz, Szwajkowski et al. · 2026 · Lasers in medical science
This in vitro study aimed to evaluate the antimicrobial effects of a 1064 nm Nd:YAG laser delivered through a novel handpiece designed to provide a flat-top, homogeneous energy distribution profile (MarcoM handpiece) against key oral…
View details →DOI: 10.1007/s10103-026-04921-5 Negative / Null Result ReportMedicine
Alshaibani, Kamadjaja, Sitalaksmi et al. · 2026 · Journal of molecular histology
Tooth extraction is a common procedure often followed by alveolar bone resorption, which may compromise future implant placement, prosthetic rehabilitation, esthetics, and periodontal support. Hydroxyapatite-chitosan (HA-Chi) scaffolds…
View details →DOI: 10.1007/s10735-026-10874-4 Negative / Null Result ReportMedicine
Siegmund, Delker, Widjaja et al. · 2026 · European journal of nuclear medicine and molecular imaging
Prostate-specific membrane antigen (PSMA)-targeted radiopharmaceutical therapy (RPT) is an established treatment for advanced prostate cancer, but renal radiation exposure remains a major safety concern, as no clinically established…
View details →DOI: 10.1007/s00259-026-08030-x Negative / Null Result ReportMedicine
Nomura, Kimata, Ito et al. · 2026 · Diagnostics (Basel, Switzerland)
Background/Objectives: To directly compare the capabilities of hybrid-type iterative reconstruction (IR) with the newly developed deep learning reconstruction (DLR) for the inner ear on high-definition CT (HDCT) obtained using the…
View details →DOI: 10.3390/diagnostics16121756 Negative / Null Result ReportMedicine
Momii, Hata, Fudaba et al. · 2026 · Scientific reports
Glioblastoma continues to have a poor prognosis, although recent advancements in multimodal treatments have gradually improved outcomes. However, treatment options have become increasingly complex and highly specialized. In rural areas,…
View details →DOI: 10.1038/s41598-026-48867-8 