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19,875 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 accessAgriculture

• The effectiveness of pituitary extract from Crucian carp (Carassius auratus Linnaes, 1758) in inducing ovulation in Veil tail gold fish (Carrassius auratus gibelio) and its effects on egg quality

A Vazirzade email ; Zohre Hassanabadizade; A Ezhdehakoshpoor; K Rezaie Tavabe · 2010 · ‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān

The effectiveness of pituitary extract from Crucian carp (Carassius auratus Linnaes 1758) in inducing ovulation in Veil Tail Gold Fish (Carassius auratus gibelio Bloch 1783), was examined and the effect of maternal hormone treatment on egg quality in two types of fertilization (fertilization in aquarium and artificial fertilization), were evaluated in 22·c temperature. Fish were injected intrapritoneally with three doses of, 2, 3 and 4mg/kg B.W pituitary extract (PE). With increasing of pituitary dose, practical fecundity also increased from 1775 in control fish to 3201 in fish with 4mg/kg B.W

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Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

Similarities (and Differences) in the Learning Patterns of Single-Word Reading of an Alphabetic Orthography in Monolingual and Bilingual Primary School Children: A Cross-Sectional Study

Giuditta Smith, Elisa Bassoli, Yagmur Ozturk et al. · 2026 · Brain Sciences

Background/Objectives: With growing waves of migration, children speaking a home language different from the language of school literacy have become increasingly common in Western education systems. In this context, understanding and monitoring bilinguals’ reading development is crucial to inform both educational and clinical practices and ensure equitable services. The present study contributes to the literature by investigating learning patterns in single-word reading across primary school grades. Monolingual and bilingual children learning to read in an alphabetic orthography were examined.

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Negative / Null Result ReportOpen accessAgriculture (General)

Effects of extreme climate on hydrological dynamics in dryland apple orchards: a modeling study

Yumeng Yang, Qi Liu, Xiaodong Gao et al. · 2026 · Agricultural Water Management

In the past decades, extreme precipitation and drought have increased in both intensity and frequency in global drylands, threatening the sustainability of agricultural systems. To address this challenge, this study refined the process-oriented STEMMUS (simultaneous transfer of energy, mass, and momentum in unsaturated soil) model by introducing a dynamic leaf area index (LAI) development sub-module, and defined scenarios incorporating variations in precipitation amount, precipitation intensity, and temperature. These scenarios elucidate the response patterns of shallow and deep soil moisture

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Negative / Null Result ReportOpen accessAnesthesiology

Comparative study of intrathecal sufentanil bupivacaine versus intrathecal bupivacaine in patients undergoing elective cesarean section

Nitika Vyas, Dinesh K Sahu, Reena Parampill · 2010 · Journal of Anaesthesiology Clinical Pharmacology

Background: Sufentanil added to intrathecal bupivacaine for cesarean section has shown to improve intraoperative and postoperative analgesia with no adverse effects on the mother and neonate. We compared the effects of intrathecal sufentanil 5 mcg and placebo when administered with hyperbaric bupivacaine 0.5% 11 mg for cesarean section. Patients and Methods: Sixty parturients of ASA grading I and II of age between 18 to 45 years scheduled for elective cesarean section under subarachnoid block were randomly allocated into one of the two groups to receive 5μg sufentanil + 0.2ml sterile, preserva

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Negative / Null Result ReportOpen accessMedicine

Assessment of the Physical Activity of Elderly Population of Isfahan, Iran

Sayed Reza Eshaghi, Armindokht Shahsanai, Maryam Mellat Ardakani · 2011 · مجله دانشکده پزشکی اصفهان

Background: Improvement of medical care and decreasing of mortality, have lead to an increase in ageing in Iranian population. The main goal of Active ageing is improving the quality of life. Physical activity is one of the factors that is important to achieve a good quality of life. The aim of this study was to evaluate the physical activity of the elderly in Isfahan. Methods: This cross sectional study was carried out on 350 old residents of Isfahan, Iran between the years 2009-2010. Multi stage cluster sampling technique was used to collect the sample population. Rapid assessment of physica

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Negative / Null Result ReportOpen accessInfectious and parasitic diseases

Independent and combined effect of bilirubin and smoking on the progression of chronic kidney disease

Wang J, Wang B, Liang M et al. · 2018 · Clinical Epidemiology

Jiancheng Wang,1,* Binyan Wang,1,2,* Min Liang,1 Guobao Wang,1 Jianping Li,3 Yan Zhang,3 Yong Huo,3 Yimin Cui,4 Xiping Xu,1,5 Xianhui Qin1 1National Clinical Research Center for Kidney Disease, State Key Laboratory for Organ Failure Research, Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, 2Institute for Biomedicine, Anhui Medical University, Hefei, 3Department of Cardiology, 4Department of Pharmacy, Peking University First Hospital, Beijing, 5Beijing Advanced Innovation Center for Food Nutrition and Human Health, Key Laboratory of Functional Dairy, College of Food Sc

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Negative / Null Result ReportOpen accessMedicine

The Impact of Previous Childbirth Experiences on Future Childbearing Decisions in Mothers with One Child: A Cross-Sectional Study

Samira Ghorbani, Seyyedeh Solmaz Talebi · 2025 · Journal of Mazandaran University of Medical Sciences

Background and purpose: Declining fertility rates and decreasing population growth are major challenges for the country. Numerous studies have been conducted to identify factors influencing this issue. One such factor is the childbirth experience. This research examines the relationship between previous childbirth experiences and fertility decisions in women with one child. Materials and methods: This cross-sectional study was conducted in 2023-2024 on 400 women with one child covered by health centers in Shahrud. Health centers were selected from various city areas (northern, southern, easter

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Negative / Null Result ReportOpen accessOrthopedic surgery

Lateral extra‐articular tenodesis improves functional movement outcomes in ACL reconstruction patients

Luyckx Thomas, Wen Zhishen, Kluyskens Louis et al. · 2025 · Journal of Experimental Orthopaedics

Abstract Purpose The primary aim was to evaluate the functional impact of adding lateral extra‐articular tenodesis (LET) to an anterior cruciate ligament (ACL) reconstruction (ACLR). The secondary aim was to assess whether LET provides benefits in muscle strength, patient‐reported outcome measures (PROMs) and return to sport (RTS) pass rate, as well as to examine the influence of meniscal injury on performance in ACLR patients. Methods A retrospective cohort of prospectively collected data on all ACL procedures was performed at AZ Delta Roeselare between 2017 and 2019. The patients followed a

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Negative / Null Result ReportOpen accessPublic aspects of medicine

Research on the Healing Potential of Rural Community Streets From the Perspective of Audiovisual Integration: A Case Study of Four Rural Communities in China

Erkang Fu, Yuxin Ren, Xi Li et al. · 2022 · Frontiers in Public Health

Rural communities have become a hot topic in academic circles because of their graceful natural environment and great healing potential. However, existing research still lacks attention to the street space in rural communities and rarely considers its integrated visual and soundscape design in terms of their effect on public health. As a result, the healing potential of rural community streets cannot be fully used in design practice. Relevant audiovisual materials were collected from a field investigation in four rural communities in southwestern China. Based on these data, the subjective and

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Negative / Null Result ReportOpen accessPsychology

The Effects of Bilateral and Ipsilateral Auditory Stimuli on the Subcomponents of Visual Attention

Jing Fu, Xuanru Guo, Xiaoyu Tang et al. · 2021 · i-Perception

Attention contains three functional network subcomponents of alerting, orienting, and executive control. The attention network test (ANT) is usually used to measure the efficiency of three attention subcomponents. Previous researches have focused on examining the unimodal attention with visual or auditory ANT paradigms. However, it is still unclear how an auditory stimulus influences the visual attention networks. This study investigated the effects of bilateral auditory stimuli (Experiment 1) and ipsilateral auditory stimulus (Experiment 2) on the visual attention subcomponents. We employed a

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Negative / Null Result ReportOpen accessAnimal culture

Slaughter value and meat quality in two strains of polish crested cockerels

Andrzej Węglarz, Krzysztof Andres, Dorota Wojtysiak · 2020 · Italian Journal of Animal Science

With increasing consumer awareness of animal welfare, and also on humanitarian grounds, the search is on to find the possibility of using slow-growing cockerels, which are becoming an alternative for conventional broilers. Therefore, the aim of this study was to evaluate slaughter value and meat quality in two new strains of Polish Crested cockerels: CP-11 (40 birds) and CP-22 (40 birds) which were raised for 25 weeks on a finishing diet based on whole wheat and oat grain. Carcase quality parameters (carcase weight, dressing percentage, leg and breast muscle percentage) were evaluated. Moreove

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Negative / Null Result ReportOpen accessVeterinary medicine

Sonographic Assessment of Fetometric Parameters in Pigs of Different Prolific Genotypes for Gestational Age Estimation

Frauke Janelt, Johannes Kauffold, Haukur Lindberg Sigmarsson et al. · 2026 · Animals

The slaughter of pregnant sows remains a relevant concern in modern swine production, with prevalence rates reported from 1.5–13% in Europe. Considering fetal sensitivity during late gestation and legal restrictions on transport and slaughter, reliable assessment of fetal age is of considerable practical, ethical, and legal relevance. In this study, 70 pregnancies from low-prolificacy (purebred German Saddleback) and medium-to-high prolificacy genotypes (purebred German Landrace and Duroc × German Landrace hybrids) were repeatedly examined using transabdominal ultrasonography, with a total of

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Negative / Null Result ReportOpen accessSocieties: secret, benevolent, etc.

FRICTION COEFFICIENT OF RECYCLED RUBBER TILES OF DIFFERENT POROSITY

A. M. Samy, Y. M. El-Sherbiny, W. Y. Ali · 2013 · Journal of the Egyptian Society of Tribology

ABSTRACTThe present study discusses the frictional behaviour of porous recycled rubber used for a wide variety of architectural applications as flooring tiles. This type of flooring tiles, of the relatively high resilience, are used in schools, boutiques, hospitals, offices, conference rooms, homes, trade fair stands and homes for the aged. Experiments were carried out by the sliding of the bare foot and rubber footwear against the tested rubber tiles of different porosity, where friction coefficient was tested. A test rig was designed and manufactured for the test. Loads were applied by foot

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Negative / Null Result ReportOpen accessAccounting. Bookkeeping

Impact of human resource accounting on organizations’ financial performance in the context of SMEs

Khan, Sania · 2021 · Accounting

This study aims to investigate the impact of human resource accounting (HRA) on the overall performance of the organization. By presenting the details of HRA the study identifies various dimensions of organizations’ financial aspects viz., human capital efficiency, organization profitability, return on asset, and return on equity. To understand the impact of various measurements, the study collected required data from 268 responses of human resource and finance departments of SME firms and analyzed the data using linear regression and the result of ANOVA and coefficient values illustrated ther

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Negative / Null Result ReportOpen accessSocial Sciences

Pengaruh Pendapatan Asli Daerah dan belanja modal terhadap pertumbuhan ekonomi Provinsi Kepulauan Bangka Belitung tahun 2009-2018

Muhammad Dedy Palguno, Devi Valeriani, Suhartono Suhartono · 2020 · Sorot

Pertumbuhan Ekonomi adalah salah satu indikator penting untuk melihat keberhasilan pembangunan ekonomi pada suatu negara atau daerah. Suatu perekonomian dikatakan mengalami pertumbuhan ekonomi jika jumlah produksi barang dan jasanya meningkat dan produk domestik regional bruto merupakan salah satu indikator penting untuk mengetahui kondisi ekonomi di suatu daerah dalam suatu periode tertentu baik atas dasar harga berlaku maupun atas dasar harga konstan. Tujuan Penelitian adalah untuk melihat pengaruh pendapatan asli daerah (PAD) dan belanja modal terhadap pertumbuhan ekonomi. Data yang digunak

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Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

The Impact of Acute Aerobic Exercise on General and Food-Related Inhibitory Function Among Young Adults with Obesity: An Event-Related Potential (ERP) Study

Chun Xie, Tao Huang, Yingying Wang et al. · 2025 · Brain Sciences

Backgrounds and Objectives : Obesity presents a significant global public health challenge and is associated with declines in both general and food-related inhibitory control, crucial for maintaining a healthy weight and preventing obesity progression. An increasing body of research suggests that acute aerobic exercise may improve inhibitory function. However, the effects and underlying mechanisms of acute aerobic exercise on both general and food-related inhibition in obese adults remain unclear. This study aimed to explore the potential impacts and underlying neuroelectronic mechanisms of a

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Negative / Null Result ReportOpen accessSpecial aspects of education

Can prompts improve self-explaining an online video lecture? Yes, but do not disturb!

Markus H. Hefter, Veit Kubik, Kirsten Berthold · 2023 · International Journal of Educational Technology in Higher Education

Abstract In recent years, COVID-19 policy measures massively affected university teaching. Seeking an effective and viable way to transform their lecture material into asynchronous online settings, many lecturers relied on prerecorded video lectures. Whereas researchers in fact recommend implementing prompts to ensure students process those video lectures sufficiently, open questions about the types of prompts and role of students’ engagement remain. We thus conducted an online field experiment with teacher students at a German university (N = 124; 73 female, 49 male). According to the randoml

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Negative / Null Result ReportOpen accessMicrobiology

Pleiotropic effects of Mentha longifolia L. extract on the regulation of genes involved in inflammation and apoptosis induced by Clostridioides difficile ribotype 001

Hamideh Raeisi, Masoumeh Azimirad, Elham Abdemohamadi et al. · 2023 · Frontiers in Microbiology

IntroductionThe dramatic increase in multidrug-resistance of Clostridioides difficile isolates has led to the search for new complementary medicines against C. difficile infection (CDI). In this study, we aimed to examine the inhibitory effects of hydroethanolic extract of Mentha longifolia L. (ETOH-ML) on the growth of C. difficile RT001 and its toxigenic cell-free supernatant (Tox-S)-induced inflammation and apoptosis.MethodsThe active phytochemical components of ETOH-ML were detected using GC and HPLC. The antimicrobial properties of the extract were examined against C. difficile RT001. Fur

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Negative / Null Result ReportOpen accessEconomic growth, development, planning

Macro-economic determinant and interdependence of the stock markets

Asim Rafiq, Shahbib Hassan · 2019 · Economic Journal of Emerging Markets

This study examines the time-varying long-term stock market interdependence between china and the ten emerging economies, using Johansen co-integration and Dynamic Conditional Correlation-Generalized Autoregressive Conditional Heteroskedasticity (DCC GARCH) model. It analyses the dynamic association between the equity markets and the macroeconomic determinants using panel regression analysis. Findings/originality: The results indicate that the Chinese stock market are co-integrated with the stock market of the other emerging markets. It confirms that the relationship between china and the othe

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Negative / Null Result ReportOpen accessOrthopedic surgery

Inferior subluxation of humeral head after osteosynthesis for greater tuberosity fracture

Ryogo Furuhata, Atsushi Tanji, Satoshi Oki et al. · 2022 · Journal of Orthopaedic Surgery and Research

Abstract Background Inferior subluxation of the humeral head is frequently observed immediately after surgery for proximal humerus fractures; however, the incidence and risk factors of inferior subluxation after osteosynthesis for isolated greater tuberosity fractures remain unsolved. Additionally, the postoperative course of inferior subluxation has not been elucidated. The purpose of the present study is to identify the predictors for the occurrence of postoperative inferior subluxation by multivariate analysis and investigate the postoperative shift of inferior subluxation and its effect on

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Negative / Null Result ReportOpen accessBiology (General)

Phosphorylation of RAV1/2 by KIN10 is essential for transcriptional activation of CAT6/7, which underlies oxidative stress response in cassava

Peng Wang, Yu Yan, Yujing Bai et al. · 2021 · Cell Reports

Summary: Related to ABI3/VP1 (RAV) transcription factors have important roles in plant stress responses; however, it is unclear whether RAVs regulates oxidative stress response in cassava (Manihot esculenta). In this study, we report that MeRAV1/2 positively regulate oxidative stress resistance and catalase (CAT) activity in cassava. Consistently, RNA sequencing (RNA-seq) identifies three MeCATs that are differentially expressed in MeRAV1/2-silenced cassava leaves. Interestingly, MeCAT6 and MeCAT7 are identified as direct transcriptional targets of MeRAV1/2 via binding to their promoters. In a

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Negative / Null Result ReportOpen accessAnimal biochemistry

THE EFFECT OF 2 COMMERCIAL FEED ADDITIVES AND FLAVOMYCIN ON INTESTINAL MICROFLORA, BROILERS’ PERFORMANCE AND AS FEED PRESERVATIVES

T. El-Afifi, H. Motawe, Gihan El-Moghazy, · 2003 · Journal of Animal and Poultry Production

One hundred and twenty two, one day old male Ross broiler chicks were used to evaluate the effect of Salkil, Prefect (two commercial feed additives) and Flavomycin (Antimicrobial growth promoter) on performance and on intestinal microflora. The chicks were divided into six groups: a) control with no additives, b) as control group but supplemented with 4 kg/ton Salkil during the whole period of the experiment (42 days), c) as control group but supplemented with 4 kg/ton Salkil during starting period and 2 kg/ton Salkil during the rest of the experiment, d) as control group but supplemented with

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Negative / Null Result ReportOpen accessEconomic growth, development, planning

Effect of Macroeconomic Factors on The Small-Medium Enterprises Loans

Adhisty Mohammad Khariza, Arintoko Arintoko, Suprapto Suprapto · 2020 · Eko-Regional

Small-medium enterprises (SMEs) are the main pillar of the Indonesian economy. Based on 2016’s Economic Census, most businesses in Indonesia are SMEs, while SMEs absorb the majority of the workforce. The empowerment of SMEs is one way to improve the economy. To empower the SMEs sector, the Indonesian government launched the Kredit Usaha Rakyat (KUR) since 2007. The lasts policy is the provision of the mild interest rate for KUR since 2016. The hope is that with a mild interest rate, SMEs can get affordable financing access so they can be the driving force of the economy. However, credit demand

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Negative / Null Result ReportOpen accessBuilding construction

Axial Compressive Behavior of Outer Square Inner Circular Spontaneous Combustion Coal Gangue Concrete-Filled Double-Skin Steel Tubular Stub Column

Jinli Wang, Chunyuan Wang, Zhe Gao et al. · 2024 · Buildings

Utilizing crushed spontaneous combustion coal gangue as a coarse aggregate in concrete preparation effectively reduces reliance on natural resources and mitigates environmental pollution; however, the suboptimal workability of spontaneous combustion coal gangue coarse aggregate concrete (SCG-CAC) limits its engineering applications. To address this issue, this study places SCGCAC at the center of a CFDST (Concrete-Filled Double-Skin Steel Tubular) stub column. Through finite element modeling validated for reliability, this study examines the structural mechanical response to axial loading, alo

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Negative / Null Result ReportOpen accessAnimal culture

Yellow grease in sheep diets: intake and digestibility

A.C. Rêgo, C.S.B. Oliveira, L.E.F. Afonso et al. · 2021 · Arquivo Brasileiro de Medicina Veterinária e Zootecnia

ABSTRACT This study aimed to assess the effects of yellow grease supplementation on the intake, digestibility, and nitrogen balance in sheep. Twenty Santa Inês lambs with a mean age of 95 ± 10 d and body weight of 19.29 ± 3.17kg were evaluated in a completely randomized design. The diets were supplemented with oil at concentrations of 0, 20, 40, 60, and 80 gkg-1 of dry matter (DM) of the concentrate. The diets were based on roughage and concentrate (50:50). The experimental period lasted 19 d and included 14 adaptation days and five collection days for the total supplied diet, orts, feces, and

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Negative / Null Result ReportOpen accessAgriculture

Effect of storage conditions on the formation of type A and B trichothecenes in cereal products

Piotr Pokrzywa, Ewa Cieślik, Magdalena Surma · 2019 · Annals of Agricultural and Environmental Medicine

Introduction and objective Mycotoxins are toxic metabolites produced by certain types of fungi, causing pathological changes in humans and animals. The aim of this study was to assess the degree of contamination of selected cereal grains, bran and cereal products intended for children, with mycotoxins using GCxGC-TOF-MS technique. The study involved mycotoxins belonging to the type A and B trichothecenes group, including T-2 toxin (T-2), HT-2 toxin (HT-2), scirpenol (SCI), 15-monoacetoxyscirpenol (15-MAS), diacetoxyscirpenol (DAS), triacetoxyscirpenol (TAS), fusarenon-X (FUS-X), nivalenol (NIV

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Negative / Null Result ReportOpen accessIndustrial safety. Industrial accident prevention

Effects of in-car CO2 concentration on driving: a preliminary study with taxi drivers

Kan Shimazaki, Yo Ishigaki, Kazunori Hayashi et al. · 2025 · Environmental and Occupational Health Practice

Objectives: To evaluate the effects of carbon dioxide (CO2) concentrations in automobiles on driving performance. Methods: A driving simulator experiment was conducted with eight taxi drivers. The experiment was conducted under low CO2 concentration (<500 ppm) and high CO2 concentration (5,000 ppm) conditions. To evaluate driving performance and cognitive function, three measures were employed: a two-back task, an LED response task, and a driving assessment. The driving assessment used scoring criteria from the driving license proficiency test. Results: Poisson regression analysis showed that

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Negative / Null Result ReportOpen accessDentistry

Fracture resistance of pulpotomized primary molars restored with three types of composite resins with and without fiber-reinforcement

Zahra Bahrololoomi, Farnaz Farahat, Shirin Pajouhande et al. · 2025 · Journal of Dental Materials and Techniques

Objective: Coronal restoration of pulpotomized primary molars plays a vital role in ensuring the long-term success of the treatment. This study aimed to evaluate the effect of fiber reinforcement on the fracture resistance of pulpotomized primary molars restored with flowable or paste bulk-fill composite resins in comparison to a conventional composite resin.Methods: In this in vitro experimental study, 48 primary molars were randomly allocated into six groups (n=8). The teeth were pulpotomozed and restored with the following materials: Group 1: Conventional composite resin, Group 2: Fiber+ co

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Negative / Null Result ReportOpen accessPlant culture

Effects of the NLA ( Narrow Leaf Angle ) Gene on Plant Architecture and Fruit Quality of Tomato

Haoran Wang, Ping Li, Ying Han et al. · 2026 · Horticulturae

To clarify the regulatory mechanism of NLA on tomato plant architecture and fruit quality, wild-type (WT), nla mutant (narrow leaf angle), and NLA overexpression lines (OE1, OE2) were used as materials, and the study was carried out through genetic analysis, phenotypic and quality determination, and gene expression analysis. The results showed that the tomato leaf angle is controlled by a single gene with semi-dominant inheritance. The nla mutant forms a compact plant architecture due to reduced cell volume at the leaf angle. During vegetative growth, it exhibited significantly increased plant

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