144 real negative results, null findings, and replication failures in Engineering · Negative / Null Result Report. 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.
Donna Kotsopoulos, Samantha Makosz, Joanna Zambrzycka et al. · 2019 · Early Child Development and Care
An enduring challenge in visual-spatial research has been to identify the factors contributing to individual differences in ability. This research investigated the overall, verbal, and nonverbal visual-spatial ability of 61 (34 boys)…
View details →Takahiro Ezaki, Kazumichi Ohtsuka, Mohcine Chraibi et al. · 2026 · Qucosa (Saxon State and University Library Dresden)
To better design safe and comfortable urban spaces, understanding the nature of human crowd movement is important. However, precise interactions among pedestrians are difficult to measure in the presence of their complex decision-making processes and many related factors. While extensive studies on pedestrian flow through bottlenecks and corridors have been conducted, the dominant mode of interaction in these scenarios may not be relevant in different scenarios. Here, we attempt to decipher the factors that affect human reactions to other individuals from a different perspective. We conducted
View details →Denis A. Zadkov, Nikita MARTYUSHEV, Boris V. Malozyomov et al. · 2026 · Mathematics
In this study, a comprehensive mathematical method for modeling the operational reliability of mine hoisting equipment under conditions of incomplete and heavily censored data is developed. The analyzed dataset includes 259 observations collected over a five-year period for six critical components, with the overall level of censoring reaching 62% and exceeding 70% for long life mechanical subsystems. Considering right, left, and interval censoring, the paper proposes a unified statistical procedure that combines empirical estimation of failure rates with parametric identification using Weibull
View details →Rianne Haumann, John Bianco, Piotr Waranecki et al. · 2022 · Translational Medicine Communications
Abstract Background Diffuse intrinsic pontine glioma (DIPG) is a notoriously difficult tumor to treat, with an overall survival of DIPG patients being only 11 months. One of the major obstacles for the effective treatment of DIPG is the blood–brain barrier (BBB). In order to circumvent the BBB, drug delivery methods are needed that target the pontine area. One such approach is microbubble-mediated focused ultrasound (FUS)—a non-invasive method that can temporarily and locally open the BBB. Previously, it was shown that FUS is safe with minimal side effects and rapid recovery times in preclinic
View details →Gábor Szabó, András Ágoston, Gábor Csató et al. · 2021 · Sensors
As demonstrated by earlier studies, pre-hospital triage with trans-telephonic electrocardiogram (TTECG) and direct referral for catheter therapy shows great value in the management of out-of-hospital chest pain emergencies. It does not only improve in-hospital mortality in ST-segment elevation myocardial infarction, but it has also been identified as an independent predictor of higher in-hospital survival rate. Since TTECG-facilitated triage shortens both transport time and percutaneous coronary intervention (PCI)-related procedural time intervals, it was hypothesized that even high-risk patie
View details →Md Sahabul Alam, Fabrice Labeau, Georges Kaddoum · 2016 · IEEE Transactions on Communications
In this paper, we consider the performance analysis of a decode-and-forward (DF) cooperative relaying (CR) scheme over channels impaired by bursty impulsive noise. Although the Middleton class-A model and the Bernoulli-Gaussian model give…
View details →Yue Zhao, Jiang Su, Zhengzhen An et al. · 2026 · Applied Sciences
Coal gangue is one of the most abundant solid wastes generated during coal mining. The use of coal gangue for underground backfilling is widely recognized as an effective approach to reducing waste accumulation and promoting sustainable utilization. To further investigate the bearing and deformation behavior of underground gangue filling materials, combined with the underground occurrence conditions of crushed gangue in goaf, a self-designed loading apparatus for crushed gangue was employed to perform lateral compression experiments on crushed gangue. The compaction deformation, fractal dimens
View details →Khuzairi Masrakin, Hasliza A. Rahim, Ping Jack Soh et al. · 2019 · IEEE Access
This paper presents the assessment of short-term wireless body area network (WBAN) exposure, which is operated at the industrial, scientific, and medical (ISM) band (2.45 GHz) in the vicinity of the human body. The experiment utilizes two popular textile antenna topologies, a planar monopole and a patch antenna as the radiating sources. The objective of this experiment is to investigate whether the exposure from WBAN may influence the physiological parameters (body temperature, blood pressure, and heart rate) and the well-being of the wearer. Counter-balanced, crossover, and the single-blind m
View details →William Hedén · 2016 · KTH Publication Database DiVA (KTH Royal Institute of Technology)
The recent increase of smart meters in the residential sector has lead to large available datasets. The electricity consumption of individual households can be accessed in close to real time, and allows both the demand and supply side to…
View details →Shuo Li, Peiliang Cong, Demei Yu et al. · 2019 · Transportation Research Record Journal of the Transportation Research Board
High friction surface treatment (HFST) has been proactively used as a solution to extreme friction demands at locations such as horizontal curves, ramps, bridge decks, and intersections. Considerable efforts have been made to evaluate the…
View details →Kyung Seo Joo, Sun Jin Sym, Kwangmin Kim et al. · 2025 · International Journal of Nanomedicine
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies, largely because of its profoundly hypoxic and desmoplastic tumor microenvironment (TME), which hinders drug delivery and promotes resistance to…
View details →Christoph Leo, Maria C. Rizzi, N M Bos et al. · 2021 · Frontiers in Bioengineering and Biotechnology
This study has analyzed sex-specific differences in pedestrian and cyclist accidents involving passenger cars. The most frequently injured body regions, types of injuries, which show sex-specific differences and the general accident parameters of females and males were compared. Accident data from three different European countries (Austria, Netherlands, Sweden) were analyzed. The current analysis shows that for both, females and males, pedestrian and cyclist injuries are sustained mainly to the body regions head, thorax, upper extremities and lower extremities. The results show that the odds
View details →Amlan Jyoti Kalita, Maibam Pooya Chanu, Nayan M. Kakoty et al. · 2025 · Wearable Technologies
Electromyogram (EMG)-controlled prosthetic hands have advanced significantly during the past two decades. However, most of the currently available prosthetic hands fail to replicate human hand functionality and controllability. To measure the emulation of the human hand by a prosthetic hand, it is important to evaluate the functional characteristics. Moreover, incorporating feedback from end users during clinical testing is crucial for the precise assessment of a prosthetic hand. The work reported in this manuscript unfolds the functional characteristics of an EMG-CoNtrolled PRosthetIC Hand ca
View details →Lianpeng Dai, Xin Zhao, Yishan Pan et al. · 2026 · Journal of Rock Mechanics and Geotechnical Engineering
Strainburst is a type of severe dynamic hazard frequently encountered in underground excavation, involving violent rock ejection. It is caused by the release of elastic strain energy stored in the surrounding rocks. Hence, the burst energy…
View details →Yue Cheng, Jian Wang, Mingwang Shao et al. · 2025 · Advanced Composites and Hybrid Materials
Hybrid polymer composites with carbon fillers are of great interest for applications requiring specific mechanical, electrical, and thermal properties. However, studies on hybrid polymer composite fiber (HPCF) with multiple carbon fillers…
View details →Charuwalee Suwatthikul, Witsarawat Chantaweesomboon, Supatra Manatrinon et al. · 2017
Recently, real-time locating system (RTLS) with centimeter accuracy using radio frequency signal is available for commercial deployment with the use of ultra-wideband (UWB) technology. One of the commercial UWB real time locating systems…
View details →Zhaowei Yang, Wenqi Liu, Miwei Li et al. · 2025 · Energy Engineering
Accurate short-term wind power forecast technique plays a crucial role in maintaining the safety and economic efficiency of smart grids. Although numerous studies have employed various methods to forecast wind power, there re... | Find, read and cite all the research you need on Tech Science Press
View details →Tianxin Hou, S X Liu, Weiyu Mao et al. · 2026 · International Journal of Pavement Engineering
The dynamic response analysis of aircraft and rigid pavement is critical for runway design and roughness evaluation. Existing methods typically assume fixed aircraft parameters, but actual variations in aircraft weight, landing gear, and…
View details →Claudia Del Toro Runzer, Elizabeth R. Balmayor, Martijn van Griensven · 2026 · Bone Research
Bone fractures represent a significant global healthcare burden. Although fractures typically heal on their own, some fail to regenerate properly, leading to nonunion, a condition that causes prolonged disability, morbidity, and mortality. The challenge of treating nonunion fractures is further complicated in patients with underlying bone disorders where systemic and local factors impair bone healing. Traditional treatment approaches, including autografts, allografts, xenografts, and synthetic biomaterials, face limitations such as donor site pain, immune rejection, and insufficient mechanical
View details →Serkan Biyik, Murat Aydin · 2026 · Journal of Electronic Materials
Abstract In this study, the arc-erosion performances of AgSnO 2 -based electrical contact materials containing different amounts of titanium dioxide (TiO 2 ) were investigated using the mechanical alloying-assisted powder metallurgy method. For this purpose, composite powder synthesis was carried out through grinding experiments using a planetary ball mill, and the produced composite powders were subjected to molding and vacuum sintering processes. Subsequently, electrical wear tests were carried out under inductive loads to investigate the arc-erosion performance of composites. Scanning elect
View details →Naman Gupta, Rantong Gong, Y. Wu et al. · 2025 · Nature Communications
The discovery of superconductivity in La3Ni2O7 under pressure has motivated the investigation of a parent spin density wave (SDW) state, which could provide the underlying pairing interaction. Here, we employ resonant soft x-ray scattering…
View details →Rachael Slater, Kukatharmini Tharmaratnam, Salma Belnour et al. · 2024 · Sensors
The diagnosis of inflammatory bowel disease (IBD) in children and the need to distinguish between subtypes (Crohn's disease (CD) and ulcerative colitis (UC)) requires lengthy investigative and invasive procedures. Non-invasive, rapid, and cost-effective tests to support these diagnoses are needed. Faecal volatile organic compounds (VOCs) are distinctive in IBD. VOC profiles can be rapidly determined using a gas chromatography-sensor device (OdoReader©). In an inception-cohort of children presenting with suspected IBD, we directly compared the diagnostic fidelity of faecal calprotectin (FCP, a
View details →Anass Moukhliss, Abdellatif Rahmouni, Rhali Benamar · 2025 · Scientific Reports
This paper proposes a discrete physical model (DPM) for the transverse free vibrations of non-uniform bi-directional functionally graded (2D-FGM) beams. The material properties vary in both the axial and thickness directions according to exponential laws, and the beam rest on a spatially variable elastic foundation and satisfy general support conditions. In the proposed formulation, the continuous beam is replaced by a multi-degree-of-freedom chain of lumped masses connected by bars and linear rotational and vertical springs. An adaptive discretization strategy is employed to construct consist
View details →Wan Azani Mustafa, Haniza Yazid, Hiam Alquran et al. · 2024 · PLoS ONE
Weld defect inspection is an essential aspect of testing in industries field. From a human viewpoint, a manual inspection can make appropriate justification more difficult and lead to incorrect identification during weld defect detection. Weld defect inspection uses X-radiography testing, which is now mostly outdated. Recently, numerous researchers have utilized X-radiography digital images to inspect the defect. As a result, for error-free inspection, an autonomous weld detection and classification system are required. One of the most difficult issues in the field of image processing, particu
View details →Yudan Wang, Litian Liu, Xinning Li et al. · 2022 · Journal of Interventional Cardiology
Background: Mortality after percutaneous coronary intervention (PCI) in ST-elevation myocardial infarction (STEMI) patients with cardiogenic shock (CS) remains high. However, the real-world risk factors for mortality in these patients are poorly defined. Objective: The aim of this study is to establish a clinical prognostic nomogram for predicting in-hospital mortality after primary PCI in STEMI patients with CS. Methods: This retrospective, multicenter, observational study included STEMI patients with CS who underwent PCI at 39 hospitals in Hebei Province from January 2018 to December 2019. A
View details →Luisa Hopp, Barbara Glaser, Julian Klaus et al. · 2019 · Hydrological Processes
Abstract The occurrence of preferential flow in the subsurface has often been shown in field experiments. However, preferential flow is rarely included in models simulating the hydrological response at the catchment scale. If it is…
View details →Angela Stefania Bergantino, Giulio Fusco, Mario Intini et al. · 2025 · The Annals of Regional Science
Abstract The digital economy can function either as a catalyst to stimulate economic growth or else as a driver of socioeconomic inequality when its benefits are unevenly distributed. This study investigates the effect of rural digital connectivity on income inequality in Italy. Utilizing NUTS 3 panel data spanning 2014–2022, we conduct a counterfactual Difference-in-Differences approach with continuous treatment intensity to estimate the impact of introducing rural broadband coverage at speeds of 30 and 100 Mbps on multiple measures of income distribution, including the Gini, Theil, and Atkin
View details →Jieling Qin, Zhenqi Jiang · 2026 · International Journal of Molecular Sciences
Metastatic breast cancer remains a significant therapeutic challenge due to its high invasiveness and resistance to conventional treatments. In this study, an ultrasound-responsive copper-calcium phosphate (Ca19Cu2(PO4)14) nanomaterial is developed for synergistic ion-mediated tumor therapy. The Ca19Cu2(PO4)14 nanomaterials exhibit a uniform morphology and crystalline structure, as well as good colloidal stability. Upon ultrasound irradiation, the release of Cu2+ and Ca2+ is spatiotemporally controlled via mechanical and cavitation effects. In vitro studies using highly metastatic 4T1 cells de
View details →Rui Zhao, Qiushi Feng, Yangyang Xia et al. · 2025 · Pharmaceuticals
The inherent complexity and heterogeneity of tumors pose substantial challenges for the development of effective oncology therapeutics. Organoids, three-dimensional (3D) in vitro models, have become essential tools for predicting therapeutic responses and advancing precision oncology, with established correlations to clinical outcomes in patient-derived models. These systems have transformed preclinical drug screening by bridging the gap between conventional two-dimensional (2D) cultures and in vivo models, preserving tumor histopathology, cellular heterogeneity, and patient-specific molecular
View details →Yawen Zhu, Wanqi Yang, Zhong‐Xia Wang et al. · 2025 · Journal of Nanobiotechnology
Liver regeneration is a sophisticated biological process influenced by a complex microenvironment that becomes profoundly altered in various pathological conditions. Current therapeutic approaches, including liver transplantation and…
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