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20,230 real negative results, null findings, and replication failures · 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.

Negative / Null Result ReportOpen accessBiotechnology

Bending Characteristics of Multilayered Soft and Hardwood Materials

Tomáš Svoboda, Daniel Ruman, Milan Gaff et al. · 2015 · BioResources

The influence of selected factors, such as wood species, veneer combinations, and loading cycles, on the bending strength and modulus of elasticity of glued laminated wood was investigated after cyclic loading of 0, 1000, 3000, and 7000 cycles with European beech (Fagus sylvatica (L.)) and Eurasian aspen (Populus tremula (L.)) The laminated woods were created by a combination of densified and non-densified veneers. The 30% densification was carried out by cold rolling. All factors and their interactions had statistically significant influence on the modulus of elasticity. Similarly, the influe

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Negative / Null Result ReportOpen accessVeterinary medicine

Evaluation of the effect of experimentally induced cartilage defect and intra-articular hyaluronan on synovial fluid biomarkers in intercarpal joints of horses

Tytti Maaria Niemelä, Riitta-Mari Tulamo, Jorge Uriel Carmona et al. · 2019 · Acta Veterinaria Scandinavica

Abstract Background Inflammatory and degenerative activity inside the joint can be studied in vivo by analysis of synovial fluid biomarkers. In addition to pro-inflammatory mediators, several anabolic and anti-inflammatory substances are produced during the disease process. They counteract the catabolic effects of the pro-inflammatory cytokines and thus diminish the cartilage damage. The response of synovial fluid biomarkers after intra-articular hyaluronan injection, alone or in combination with other substances, has been examined only in a few equine studies. The effects of hyaluronan on som

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Negative / Null Result ReportOpen accessPharmacy and materia medica

Antidepressant Potential of Ferula gummosa Essential Oil in Mouse Models

Saeid Abbasi-Maleki, Hadi Yousefi*, Rahim Sharafkhani et al. · 2023 · Research Journal of Pharmacognosy

Background and objectives: Earlier researches have exhibited the antioxidant, antinociceptive, and antiepileptic effects of Ferula gummosa. Considering that antioxidants play a key role in the pathogenesis of depression, the antidepressant potential of the F. gummosa essential oil was assessed by using a mouse models. Methods:Lorke’s method was used to access the acute toxicity of the F. gummosa essential oil. The F. gummosa essential oil (5-40 mg/kg), standard agents, and vehicle were administered to animals. The forced-swimming test (FST), tail suspension test (TST), and open-field test (OFT

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Negative / Null Result ReportOpen accessFood processing and manufacture

Scientific and practical justification of the use of non-traditional raw materials in the technology of pancakes for dietary nutrition

N. M. Yushchenko, Yu. V. Shevchuk · 2024 · Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького. Серія: Харчові технології

Today, diseases that cause intolerance to food ingredients in the composition of traditional food products are spreading rapidly in the civilized world. Therefore, the current direction of scientific research is the scientific and practical substantiation of the technologies of food products with multifunctional properties, which will ensure complete nutrition of the most vulnerable categories of society – with intolerance to gluten, milk proteins, and egg white, lactase deficiency, insulin resistance, and prediabetic conditions, etc. The selection of non-traditional raw materials was carried

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Negative / Null Result ReportOpen accessMicrobiology

The effects of bud load and regulated deficit irrigation on sugar, organic acid, phenolic compounds and antioxidant activity of Razakı table grape berries

Tangolar Semih, Tarım Güzin, Kelebek Haşim et al. · 2015 · BIO Web of Conferences

This study aims at assessing the effects of increased bud load and irrigation applications on berry quality of the Razakı table grape. Two Regulated Deficit Irrigation (RDI) having different irrigation levels (RDI-I and RDI-II) based on the growth stages, in addition to a non-irrigated control treatment together with two different bud load practices (K-normal and 2K-two-fold buds of the normal) were examined for their effects on quality attributes such as sugar and organic acids contents, phenolic compounds as well as antioxidant capacity of the berries. The non-irrigated vines had highest sug

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Negative / Null Result ReportOpen accessPlant culture

Effect of perforated foil and polypropylene fibre covers on assimilation leaf area of early potato cultivars

W. Wadas, E. Kosterna · 2007 · Plant, Soil and Environment

This paper presents the results of a three-year research on the effect of perforated polyethylene foil and polypropylene fibre covering at various lengths of plant cover period (2 and 3 weeks after plant emergence) on the assimilation leaf area of early potato cultivars. In the case of plant covering for 2 weeks after emergence the assimilation leaf area and leaf area index (LAI) at the moment of cover removal were on average 2 times higher than in the cultivation without covering; at the 3-week period of plant covering they were almost 1.7 times higher. A higher favourable effect of covering

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Negative / Null Result ReportOpen accessPolitical science

Citizens’ Adoption of an E-Health System During the Pandemic

Faye Lorraine P. Mina, Enrique B. Batara, Eucil P. Hussien et al. · 2023 · Jurnal Studi Pemerintahan

This study aimed to determine the factors influencing the behavioral intention of PhilHealth members to adopt My PhilHealth Portal using an extended unified theory of acceptance and use of technology (UTAUT). Variables from this theory were operationalized through indicators which were then translated into a self-reported online survey questionnaire distributed through email and Facebook. Purposive-homogeneous sampling was used to determine the sample size from the target population who are Cagayan de Oro City based PhilHealth formal economy members employed in either private or public sector.

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Negative / Null Result ReportOpen accessBiology (General)

Germinação e vigor de sementes de Crataeva tapia L. em diferentes substratos = Germination and vigor of Crataeva tapia L. seeds in different substrates

Edilma Pereira Gonçalves, Edna Ursulino Alves, Riselane de Lucena Alcântara Bruno et al. · 2007 · Acta Scientiarum: Biological Sciences

O experimento foi realizado no Laboratório de Análise de Sementes do Centro de Ciências Agrárias da Universidade Federal da Paraíba, em Areia – Estado da Paraíba, com sementes de trapiá, a fim de estudar o uso de diferentes substratos para avaliação da qualidade fisiológica no teste de germinação. Os substratos consistiram de: vermiculita (T1), bioplant® (T2), bioclone® (T3), areia (T4), plugmix® (T5), rolo de papel (T6) e entre papel em gerbox (T7). Após a distribuição das sementes nos respectivos substratos, foram colocados em germinador a 25oC, sob fotoperíodo de oito horas. Foram computada

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Negative / Null Result ReportOpen accessAccounting. Bookkeeping

PENGARUH MEKANISME CORPORATE GOVERNANCE, KINERJA LINGKUNGAN DAN PENGUNGKAPAN LINGKUNGAN PERUSAHAAN TERHADAP REAKSI PASAR

Bayu Tri Mukti Mukti, Made Sudarma, Grahita Chandrarin · 2014 · El Muhasaba: Jurnal Akuntansi

Abstract The purpose of this study was to analyze the market reaction as indicated by rising the stock price as a result of the implementation corporate governance mechanisms, environmental performance and corporateenvironmental disclosure published on the annual report in 2010. This study uses hypothesis testing approach to explain the causal relationship between the variables of the study. The population in this study is a registered company in Indonesia Stock Exchange. The results show that the application of corporate governance mechanism through the principles of good corporate governance

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Negative / Null Result ReportOpen accessBotany

Impact of Fungal Endophyte Colonization of Maize ( Zea mays L.) on Induced Resistance to Thrips- and Aphid-Transmitted Viruses

Simon Kiarie, Johnson O. Nyasani, Linnet S. Gohole et al. · 2020 · Plants

In eastern Africa, Maize lethal necrosis (MLN) is caused by the co-infection of maize plants with Maize chlorotic mottle virus (MCMV) (Tombusviridae: Machlomovirus ) and Sugarcane mosaic virus (SCMV) (Potyviridae: Potyvirus ). With the disease being new to Africa, minimal effective management strategies exist against it. This study examined the potential of 10 fungal isolates to colonize maize plants and induce resistance against MCMV and SCMV. Maize seeds were soaked in fungal inoculum, sown and evaluated for endophytic colonization. Fungus-treated plants were challenge-inoculated with SCMV a

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Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system

The Effect of Hyperhomocysteinemia on Motor Symptoms, Cognitive Status, and Vascular Risk in Patients with Parkinson’s Disease

Bilge Kocer, Hayat Guven, Isik Conkbayir et al. · 2016 · Parkinson's Disease

Factors related with hyperhomocysteinemia (HHcy) and the impact of HHcy in Parkinson’s disease (PD) are not well understood. We investigated the factors associated with increased levels of homocysteine (Hcy) and the relationship between HHcy and motor symptoms, cognitive status, and vascular risk in patients with Parkinson’s disease. Among 60 patients (29 males, 48.3%) with PD, the stage of the disease, the severity of clinical symptoms, and the patients’ cognitive status were measured using a modified Hoehn and Yahr Staging Scale (mHY), Unified Parkinson’s Disease Rating Scale (UPDRS) II and

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Negative / Null Result ReportOpen accessPsychology

Research on the Influence Mechanism of Intention to Proximity Travel under the COVID-19

Huan Chen, Luyao Wang, Shaogui Xu et al. · 2022 · Behavioral Sciences

The outbreak of COVID-19 has brought increasing attention to proximity travel. This mode of travel is a convenient travel setup for both tourists and neighboring destinations. With the help of the model of goal-directed behavior (MGB), this study investigates the influence of tourists’ perception of epidemic risk on their intentions for proximity travel during the normalization of epidemic prevention and control. This study takes Shenzhen, China as the research area, and carried out the investigation in the context of normalization of the epidemic in China. A total of 489 pieces of valid sampl

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Negative / Null Result ReportOpen accessSports medicine

The effect of taekwondo structured training on attention in 7–8-year-old children: a randomized controlled trial

Xianfu Song, Dan Wang, Dexin Wang et al. · 2026 · BMC Sports Science, Medicine and Rehabilitation

Abstract Objective This study investigated the effects of an 8-week Taekwondo program on the attention of children aged 7–8 years, exploring its potential as a motor intervention during a critical developmental period. Methods Forty children were randomly assigned to either an experimental group (EG, n = 20), which participated in a structured Taekwondo program (three 45-minute sessions/week at ≥ 60% HRmax), or a control group (CG, n = 20), which attended regular physical education classes. Attention was assessed pre- and post-intervention using tasks measuring stability, allocation, shifting,

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Negative / Null Result ReportOpen accessMedicine

Aqueous and methanol extracts of Paullinia pinnata improve MSUc uptake in macrophages and in vitro antioxidant effects

Pius Pum Tseuguem, Télesphore Benoît Nguelefack, Elvine Pami Nguelefack-Mbuyo et al. · 2026 · Scientific Reports

Abstract Extracts of Paullinia pinnata have demonstrated therapeutic effects in monosodium urate (MSU)-induced gout in rats, notably by reducing inflammation and hyperalgesia, as well as enhancing antioxidant activity in vivo. However, their in vitro antioxidant potential and their effects on MSU-stimulated macrophages remain insufficiently explored. This study aims to investigate the in vitro antioxidant properties of P. pinnata, with a particular focus on MSU uptake in stimulated macrophages. The in vitro antioxidant activities of aqueous (AEPP) and methanolic (MEPP) extracts of P. pinnata l

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Negative / Null Result ReportOpen accessAccounting. Bookkeeping

PENGARUH PEMAHAMAN PERATURAN PERPAJAKAN, KUALITAS PELAYANAN, KESADARAN WAJIB PAJAK DAN SANKSI PAJAK TERHADAP KEPATUHAN WAJIB PAJAK ORANG PRIBADI

Teguh Erawati, Nur Ghailina As’ari · 2018 · Akuntansi Dewantara

This study aims to determine the effect of understanding tax laws, service quality, taxpayer awareness, and tax sanctions on taxpayer compliance of individuals at the District Rongkop, district Gunungkidul. This research type is quantitative research by using primary data. The population in this study is all taxpayers of individuals registered in KPP Pratama Wonosari. and the criteria of respondents in the study are registered Private Taxpayers. Data analysis in this research using multiple regression with SPSS program version 16.0. The results showed that the value of F arithmetic 27.707 grea

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Negative / Null Result ReportOpen accessMedicine

Temporal and spatial distribution of soil water and nitrate content affected by surface irrigation and fertilizer rate in silage corn fields

Yuchun Liu, Ning Wang, Changsong Jiang et al. · 2020 · Scientific Reports

Abstract Among surface irrigation systems, long border and furrow are more adaptive to mechanized farming but may cause a non-uniform distribution of water and nutrients. In this study, field experiments were carried out in a flat silage corn field in Hebei, China to investigate the uniformity along the length of border or furrow to understand the spatial and temporal distribution characteristics of soil water, electrical conductivity, and nitrate. This will guide irrigation and fertigation management recommendations, land consolidation, and high standard farmland construction. Border and furr

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Negative / Null Result ReportOpen accessPsychiatry

Understanding the developmental impact of psychological maltreatment through the lens of the dimensional model of adversity and psychopathology

Meret Sophie Wallimann, Katharina Beck, David Cyrill Lätsch · 2026 · European Journal of Psychotraumatology

Background: Psychological maltreatment is linked to negative developmental outcomes in adolescents. It includes psychological abuse (PA) and psychological neglect (PN), which are commonly studied as a pair. This study applied the dimensional model of adversity and psychopathology (DMAP), which conceptualises abuse as a threatening experience involving harm or the threat of harm that primarily impairs social-emotional processing, such as emotion regulation, while it views neglect as deprivation or absence of parental care that predominantly affects cognitive functioning, such as working memory.

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Negative / Null Result ReportOpen accessDiseases of the circulatory (Cardiovascular) system

Effect of fluoroscopy frame rate on radiation exposure and in‐hospital outcomes in three‐dimensional electroanatomic mapping guided procedures

Muzaffar Ali, Deepak Padmanabhan, Khalil Kanjwal et al. · 2021 · Journal of Arrhythmia

Abstract Background Fluoroscopic imaging involves exposure of the patients and the laboratory staff to ionizing radiation. One of the strategies that reduce such exposure in an electrophysiology laboratory is using a three‐dimensional electroanatomic mapping (3D EAM) system for performing these procedures. In this analysis, we have analyzed the effect of fluoroscopy frame rate on the radiation exposure and in‐hospital outcomes in ablation procedures performed under 3D EAM guidance. Methods We retrospectively analyzed all the ablation procedures performed under 3D EAM guidance at our institute

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Negative / Null Result ReportOpen accessNutrition. Foods and food supply

mTOR-autophagy axis regulation by intermittent fasting promotes skeletal muscle growth and differentiation

Chen Xinyan, Wu Yajie, He Shangfan et al. · 2025 · Nutrition & Metabolism

Abstract Intermittent fasting (IF) as a dietary intervention with potential health benefits has garnered significant attention in recent years. This study investigated the effects of varying fasting intensities on skeletal muscle growth using mouse models. Compared to the normal-diet (ND) control group, short-term fasting induced feeding amount-dependent alterations in skeletal muscle autophagy markers, characterized by elevated LC3B expression, reduced p62 levels, and decreased p-mTOR/mTOR ratio. Notably, short-term mild fasting (sMF) significantly upregulated myogenic (MYH, MyoD) and adipoge

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Negative / Null Result ReportOpen accessMedicine

A Randomized Clinical Trial Comparing the Effect of Rapidly Infused Crystalloids on Acid-Base Status in Dehydrated Patients in the Emergency Department

Hakan Hasman, Orhan Cinar, Ahmet Uzun, Erdem Cevik, Loni Jay, Bilgin Comert · 2012 · International Journal of Medical Sciences

Study objective: To compare the effect of normal saline (NS), lactated Ringer's, and Plasmalyte on the acid-base status of dehydrated patients in the emergency department (ED). Method: We conducted a prospective, double-blind, randomized trial of consecutive adult patients who presented to the emergency department with moderate-severe dehydration. Patients were randomly allocated to blindly receive normal saline (NS), lactated Ringer's or Plasmalyte at 20 ml/kg/h for 2 hours. Outcome measures of the study were pH and changes in electrolytes, including serum potassium, sodium, chloride and bica

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Negative / Null Result ReportOpen accessAgriculture

Incidence of nitrogenous compounds of must on ethyl carbamate formation induced by lactic acid bacteria

José Antonio Suárez Lepe, Carlos Anibal Uthurry · 2007 · OENO One

Aims: Ethyl carbamate (EC) is a toxic compound of major concern for the hygiene quality of wines. Its natural synthesis in wine is connected to the ethanolysis of molecules such as urea (alcoholic fermentation metabolite) and citrulline and carbamyl phosphate (malolactic fermentation metabolites) during ageing. This study reports the effect of adenine, arginine, urea and ammonium phosphate of Vitis vinifera L. cv. Tempranillo must, on EC synthesis in fermented wine using two lactic acid bacteria strains under different microbiological and physicochemical conditions. Methods and results: EC was

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Negative / Null Result ReportOpen accessTechnology

Static Balancing Ability and Lower Body Kinematics Examination of Hungarian Folk Dancers: A Pilot Study Investigating the “Kalocsai Mars” Dance Sequence

Cecília Molnár, Zsófia Pálya, Rita M. Kiss · 2021 · Applied Sciences

Folk dance is a collection of traditional dances that requires years of practicing to perform correctly. The aim of the present study was to develop a complex biomechanical measurement procedure that investigated Hungarian folk dancers’ balancing ability and lower body kinematics through a dance movement called “Kalocsai mars”. Therefore, 11 dancers’ motion (5 female and 6 male; age: 20.5 ± 2.5 years; height: 173.82 ± 7.82 cm; weight: 64.77 ± 8.67 kg) was recorded with an optical-based motion capture system and force platforms simultaneously. Before and after the dancing session, static balanc

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Negative / Null Result ReportOpen accessMedicine

Test-retest reliability and validity of the Importance of Olfaction Questionnaire in Denmark.

Daniel Tchemerinsky Konieczny, Alexander Wieck Fjaeldstad, Kristian Sandberg · 2024 · PLoS ONE

While measures to detect psychophysical olfactory ability are a crucial part of clinicians' assessment of potential olfactory loss, it gives no indication of how olfaction is experienced by the patient and these different aspects often deviate substantially. To ensure quality and reproducibility of subjectively reported olfactory experience and significance, the Importance of Olfaction Questionnaire (IO-Q) was introduced around a decade ago, and while initial validations have produced promising results, important aspects remain nearly unexamined. For example, the test-retest reliability has ra

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Negative / Null Result ReportOpen accessBotany

Dynamic Responses of Ascorbate Pool and Metabolism in Lettuce to Light Intensity at Night Time under Continuous Light Provided by Red and Blue LEDs

Yuan Wen, Lingyan Zha, Wenke Liu · 2021 · Plants

To understand the dynamic changes of hydroponic lettuce growth, ascorbate (AsA) pool and metabolism under two different dark period light intensities (LL, 20 μmol·m −2 ·s −1 ; CL, 200 μmol·m −2 ·s −1 ) of continuous light and normal light (NL, 0 μmol·m −2 ·s −1 ) provided by red (R) and blue (B) LEDs, the chlorophyll fluorescence parameters, ascorbate pool size, AsA metabolism-related enzyme activities, and H 2 O 2 contents of lettuce were measured at 0, 8, 16, 24, 32, 40, 48, 56, 64, and 72 h after light treatment and the lettuce growth parameters were measured on the 9th day after light trea

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Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

A Mechanical Stimulation Glove to Induce Hebbian Plasticity at the Fingertip

Fabian Timm, Esther Kuehn, Esther Kuehn et al. · 2020 · Frontiers in Human Neuroscience

Repetitive sensory stimulation of the fingertip induces Hebbian plasticity in the sensorimotor cortex that benefits the tactile and motor behavior of the hand in healthy younger adults, older adults, and patients. To use this method outside the laboratory, robust and portable stimulation systems are needed that allow prolonged stimulation phases over several hours without compromising on signal intensity or personal mobility. Here, we introduce two stimulation gloves that apply finger- and frequency-specific mechanical stimulation to individual fingertips over prolonged periods. The stimulator

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Negative / Null Result ReportOpen accessEcology

Factors affecting formation of adventitious branches in the seaweeds Fucus vesiculosus and F. radicans

Alexandra Kinnby, Ricardo T. Pereyra, Jonathan N. Havenhand et al. · 2019 · BMC Ecology

Abstract Background In the brackish Baltic Sea, shedding of adventitious branches is central to asexual recruitment of new thalli in the brown algae Fucus vesiculosus and F. radicans. To test which factors influence the formation of adventitious branches in brackish and in more marine conditions, we sampled 29 Fucus sites in the Baltic Sea (salinity 3–11) and 18 sites from the Danish straits, Kattegat, Skagerrak, and the North Sea (salinity 15–35). Separately for each area, we used structural equation modelling to determine which of eight predictor factors (phosphate, nitrate, chlorophyll-a (a

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Negative / Null Result ReportOpen accessBusiness

Analisis Pengaruh Ratio Keuangan dengan Harga Saham pada Perusahaan Properti di Bursa Efek Indonesia

Bambang Sugeng Dwiyanto · 2012 · Jurnal Maksipreneur: Manajemen, Koperasi, dan Entrepreneurship

Bankcruptcy is a very important problem, in which every company should be aware of. It is very important to detect the signs of the coming bankruptcy of the company as soon as possible in order to take effective action to avoid it. One popular model to do so is Z-score, a statistical model to predict bankruptcy based on company financial performance. This paper deals with the analysis of the financial performance of property companies listed on the Indonesia Stock Exchange. However, in previous research it was found that there is no strong correlation between the companies financial performanc

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Negative / Null Result ReportOpen accessMedicine

Body Mass Index and Risk of Prostate Volume, International Prostate Symptom Score, Maximum Urinary Flow Rate, and Post-Void Residual in Benign Prostatic Hyperplasia Patients

Bing-Hui Li, Tong Deng, Qiao Huang et al. · 2019 · American Journal of Men's Health

The objective of this study was to evaluate association between body mass index (BMI) and prostate volume (PV), international prostate symptom scores (IPSS), maximum urinary flow rate ( Q max ), and post-void residual (PVR) of Chinese benign prostatic hyperplasia (BPH) patients. All newly diagnosed BPH patients between September 2016 and August 2018 were selected and 788 patients were included. According to BMI, the patients were categorized into four groups, while according to PV, IPSS, Q max , and PVR, they were categorized into two groups based on clinical significant cutoffs. Univariable a

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Negative / Null Result ReportOpen accessInfectious and parasitic diseases

The Rhipicephalus (Boophilus) microplus Bm86 gene plays a critical role in the fitness of ticks fed on cattle during acute Babesia bovis infection

Knowles Donald P, Ueti Massaro W, Bastos Reginaldo G et al. · 2010 · Parasites & Vectors

Abstract Background Rhipicephalus ( Boophilus ) microplus is an economically important tick of cattle involved in the transmission of Babesia bovis , the etiological agent of bovine babesiosis. Commercial anti-tick vaccines based on the R. microplus Bm86 glycoprotein have shown some effect in controlling tick infestation; however their efficacy as a stand-alone solution for tick control has been questioned. Understanding the role of the Bm86 gene product in tick biology is critical to identifying additional methods to utilize Bm86 to reduce R. microplus infestation and babesia transmission. Ad

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Negative / Null Result ReportOpen accessTechnology

Verification of Utilizing Nanowaste (Glass Waste and Fly Ash) as an Alternative to Nanosilica in Epoxy

Awham Jumah Salman, Zahraa Fakhri Jawad, Rusul Jaber Ghayyib et al. · 2022 · Energies

Silica is considered one of the most prevalent components in the Earth’s shell and is synthesized for use in technological applications. Nevertheless, new methods for finding a better, cheaper, and more ecologically friendly supply of silica with less energy consumption are unavoidable. This study investigates whether nanopowders made from waste with a great silica amount (fly ash and glass) can be utilized as fillers in an epoxy glue to enhance its characteristics. Four different contents (5, 10, 15, and 20 wt%) of nano–fly ash, nanoglass, and nanosilica powder were introduced into the sample

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