A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.
750 results in Failed Experiment Report · page 4 of 25
Abubakar Aminu Mu’azu, Kauthar Kabir · 2023 · WSEAS TRANSACTIONS ON COMPUTERS
The Security of confidential communication is protected using the most popular type of carrier to hold information known as Image steganography. The Least Significant Bit (LSB) algorithm and the Most Significant Bit (MSB) algorithm are…
Andrey Shumakov · 2023 · Izvestia of Smolensk State University
This work is devoted to a very little-studied topic of the Virginia Slave Conspiracy led by Gabriel and is the first study of this issue in Russian historiography. The present article analyzes in detail the causes and prerequisites of the…
George Hathaway, Lance L. Williams · 2021 · Physics
We report test results searching for an effect of electrostatic charge on weight. For conducting test objects of mass of order 1 kg, we found no effect on weight, for potentials ranging from 10 V to 200 kV, corresponding to charge states…
Michael Joachim, Thomas Schick · 1999 · arXiv
The Gromov-Lawson-Rosenberg-conjecture for a group G states that a closed spin manifold M^n (n>4) with fundamental group G admits a metric with positive scalar curvature if and only if its C^*-index A(M) in KO_n(C^*_r(G)) vanishes. We prove this for groups G with low-dimensional classifying space, provided the assembly map for G is injective. On the other hand, we construct a spin manifold with no metric with scal>0 but so that already its KO-orientation in KO_*(B pi_1(M)) vanishes. Therefore a corresponding weakened version or the GLR-conjecture is wrong. Last we address non-orientable manifo
Antoine Suarez · 2014 · arXiv
A Michelson-Morley-type experiment is described, which exploits two-photon interference between entangled photons instead of classical light interference. In this experimental context, the negative result (no shift in the detection rates) rules out David Bohm's postulate of an infinite-speed time-ordered "quantum potential", and thereby upholds the timeless standard quantum collapse.
Ramin Babaee, Shahab Oveis Gharan, Martin Bouchard · 2025 · arXiv
We propose a novel digital-to-analog converter (DAC) weighting architecture that statistically minimizes the distortion caused by random timing mismatches among current sources. To decode the DAC input codewords into corresponding DAC switches, we present three algorithms with varying computational complexities. We perform high-level Matlab simulations to illustrate the dynamic performance improvement over the segmented structure.
Alexandre Tchoudinov · 2021 · ISTORIYA
The article is devoted to the problem of cross-cultural interaction between the French and the Arabs during the Egyptian expedition of Napoleon Bonaparte 1798—1801. Using a comparative analysis of a wide range of French sources and Arab…
Wang, Yan, Qi et al. · 2026 · Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control
To prepare the recombinant Echinococcus granulosus Polo-like kinase 2 (rEgPLK2) protein and evaluate its immunoprotective efficacy against cystic echinococcosis, so as to provide insights into research and development of novel vaccines…
Haneen Mahdi Jaber, Muhammed Abdul -Sattar, Nabel Kadhim Abd al-Sahib · 2020 · Al-Khwarizmi Engineering Journal
Prosthetic is an artificial tool that replaces a member of the human frame that is absent because of ailment, damage, or distortion. The current research activities in Iraq draw interest to the upper limb discipline because of the growth…
Gulista Khan · 2021 · Asian Journal of Multidimensional Research
Fixing broken computer programs entails performing two basic debugging tasks: first, the programmer must recreate the problem; second, the programmer must identify the source of the failure. As a consequence of testing, software debugging…
Michael Gross, Ursula Wilkenshoff, Susanne Rutschow · 2014 · ScienceOpen Research
Abstract: MitraClip is an attractive and less invasive alternative to mitral valve surgery in serve mitral regurgitation in patients with moderate or severe risk for operation. It has been described to be effective and safe in functional…
Bestami S. Bi̇lgi̇ç · 2011 · Belleten
The conventional wisdom says that Ottoman Armenians and Rums had collaborated against the Ottoman government during the First World War and its immediate aftermath, and then the Ankara government after 1920. They may have joined forces…
Svetlana Frandsen, Pernille Ravn · 2024 · Ugeskrift for Læger
Shoulder dystocia is a serious obstetric complication, where one or both shoulders of a child are trapped after the head is born during vaginal delivery. The situation is life-threatening for the child and requires quick management with…
· 2024 · Multimedia Manual of Cardio-Thoracic Surgery
The Ross procedure provides young patients with unrepairable aortic valve disease with a living pulmonary autograft that confers significant survival benefit and improved quality of life. However, the procedure is complicated, and surgeons…
Oded Nir · 2023 · Minnesota Review
This article argues that Mao’s writing on contradiction and cultural revolution allows us to understand Zionism in a unique Marxist perspective, as a failed cultural revolution. The author first presents Mao’s writing on contradictions,…
Ariane Kovac · 2024 · AЯGOS
Divine healing is an emotionally and theologically conflictive field where actors communicate positions and draw boundaries by engaging in certain practices and renouncing others. In this article, I analyse how a progressive evangelical…
· 2021 · The Multimedia Manual of Cardio-Thoracic Surgery
With transcatheter aortic valve replacement being increasingly utilized in a younger and lower risk population, we can expect to see larger numbers of patients presenting with structural deterioration of aortic valves replaced by the…
Zulma Janet Hernández-Paxtián · 2014 · RICS Revista Iberoamericana de las Ciencias de la Salud
La fascinación por replicar el funcionamiento del cuerpo humano, existe desde las primeras observaciones de Prometeo, Thévenot y Tremblay, es por ello, que el desarrollo de herramientas para tratar lesiones y enfermedades ha sido de los…
Kaitlyn Rabach · 2025 · Roadsides
In Donegal County, Ireland over 30,000+ homes are crumbling due to the failure and neglect of a self-regulated construction industry without a comprehensive independent audit system or inspection system. Over a decade of delayed…
Liudmila Zakharova, Hikmet Nural, James R Nimlos et al. · 2013 · Circulation Research
A pilot clinical study using autologous c-Kit+ cells showed improvement in cardiac functions in congestive heart failure (CHF), however, it is unclear if c-Kit+ cells isolated from CHF hearts are equally as potent as cells from controls.…
· 2024 · Journal of Surgery Care
Mitra Clip is an interventional procedure used in mitral regurgitation patients who are surgically inoperable or are at high surgical risk. However, there is a failure rate associated with this procedure and in some instances no surgical…
Hibba Asif · 2025 · European Journal of Clinical Pharmacy
We present a case of an elderly male who came for below-knee amputation (BKA) due to complicated synovial sarcoma. The patient had history of chronic obstructive pulmonary disease(COPD) and had undergone multiple cycles of chemotherapy and…
Marco Pop-Mihali, Adrian Groza · 2023 · arXiv
We aim at development white-box machine learning algorithms. We focus here on algorithms for learning axioms in description logic. We extend the Class Expression Learning for Ontology Engineering (CELOE) algorithm contained in the DL-Learner tool. The approach uses multiple search trees and a shared pool of refinements in order to split the search space in smaller subspaces. We introduce the conjunction operation of best class expressions from each tree, keeping the results which give the most information. The aim is to foster exploration from a diverse set of starting classes and to streamlin
Florian Domingo, Sebastian Paßehr · 2021 · arXiv
The connection between gauge and Higgs sectors makes supersymmetric extensions of the Standard Model predictive frameworks for the derivation of Higgs masses. In this paper, we study the contamination of such predictions by field-renormalization constants, in the MSSM with two-loop gaugeless corrections of $\mathcal{O}{\left(α_{t,b}\,α_s,\,α_{t,b}^2\right)}$ and full momentum dependence, and demonstrate how strict perturbative expansions allow to systematically neutralize the dependence on such unphysical objects. On the other hand, the popular procedure consisting in an iterative pole search
Anh-Huy Phan, Petr Tichavský, Andrzej Cichocki · 2017 · arXiv
In CANDECOMP/PARAFAC tensor decomposition, degeneracy often occurs in some difficult scenarios, e.g., when the rank exceeds the tensor dimension, or when the loading components are highly collinear in several or all modes, or when CPD does not have an optimal solution. In such the cases, norms of some rank-1 terms become significantly large and cancel each other. This makes algorithms getting stuck in local minima while running a huge number of iterations does not improve the decomposition. In this paper, we propose an error preservation correction method to deal with such problem. Our aim is
Liang Feng Zhang · 2013 · arXiv
Baranyai's theorem is a well-known theorem in the theory of hypergraphs. A corollary of this theorem says that one can partition the family of all $u$-subsets of an $n$-element set into ${n-1\choose u-1}$ sub-families such that each sub-family form a partition of the $n$-element set, where $n$ is divisible by $u$. In this paper, we present a coding-theoretic application of Baranyai's theorem (or equivalently, the corollary). More precisely, we propose the first purely combinatorial construction of locally decodable codes. Locally decodable codes are error-correcting codes that allow the recove
Yu-Jia Wang, Feng-Kun Guo, Cen Zhang et al. · 2020 · arXiv
Recently, a new set of positivity bounds with $t$ derivatives have been discovered. We explore the generic features of these generalized positivity bounds with loop amplitudes and apply these bounds to constrain the parameters in chiral perturbation theory up to the next-to-next-to-leading order. We show that the generalized positivity bounds give rise to stronger constraints on the $\bar l_i$ constants, compared to the existing axiomatic bounds. The parameter space of the $b_i$ constants is constrained by the generalized positivity bounds to be a convex region that is enclosed for many sectio
Saharon Shelah · 2001 · arXiv
David Aspero asks on the possibility of having Forcing axiom FA_{aleph_2}(K), where K is the class of forcing notions preserving stationarity of subsets of aleph_1 and of aleph_2. We answer negatively, in fact we show the negative result for any regular lambda>aleph_1 even demanding adding no new sequence of ordinals of length<lambda.
Daixi Xia, Hassan Allami, Jacob J. Krich · 2025 · arXiv
We present a Poisson/drift-diffusion model that includes valley scattering effects for simulating valley photovoltaic devices. The valley photovoltaic concept is a novel implementation of a hot-carrier solar cell and leverages the valley scattering effect under large electric field to potentially achieve high voltage and high efficiency. Fabricated devices have shown S-shaped current-voltage curves, low fill factor, and thus low efficiency. We hence develop the first device model for valley photovoltaics. Our model includes electric-field-dependent valley scattering rates extracted from previo
Roman Aperdannier, Sigurd Schacht, Alexander Piazza · 2024 · arXiv
Speaker diarization answers the question "who spoke when" for an audio file. In some diarization scenarios, low latency is required for transcription. Speaker diarization with low latency is referred to as online speaker diarization. The DIART pipeline is an online speaker diarization system. It consists of a segmentation and an embedding model. The embedding model has the largest share of the overall latency. The aim of this paper is to optimize the inference latency of the DIART pipeline. Different inference optimization methods such as knowledge distilation, pruning, quantization and layer