Negative / Null Result ReportOpen accessMedical technology
Huali Zhou, Alan Kan, Guangzheng Yu et al. · 2022 · IEEE Transactions on Neural Systems and Rehabilitation Engineering
The temporal-limits-encoder (TLE) strategy has been proposed to enhance the representation of temporal fine structure (TFS) in cochlear implants (CIs), which is vital for many aspects of sound perception but is typically discarded by most modern CI strategies. TLE works by computing an envelope modulator that is within the temporal pitch limits of CI electric hearing. This paper examines the TFS information encoded by TLE and evaluates the salience and usefulness of this information in CI users. Two experiments were conducted to compare pitch perception performance of TLE versus the widely-use
View details →Negative / Null Result ReportOpen accessAgriculture
Óscar Chichongue, Johan J. van Tol, Gert M. Ceronio et al. · 2022 · Agronomy
Sub-Saharan Africa (SSA) agriculture is characterized by dependence on erratic rainfall, inadequate conservation practices, and a decline in soil fertility resulting in low crop productivity. Therefore, conservation agriculture (CA) has been proposed as an alternative to improve soil fertility and productivity. Hence the aim was to investigate the effects of tillage systems, fertilization, and cropping patterns on selected soil chemical properties (pH, organic carbon, total nitrogen, extractable phosphorus, exchangeable cations, and cation exchange capacity) and identify which cropping pattern
View details →Negative / Null Result ReportOpen accessBiotechnology
Júlio Cesar Ronquim, Josué Marques Pacheco, Carlos Cesar Ronquim · 2004 · Brazilian Archives of Biology and Technology
The interactions between aphids and their Hymenopteran parasitoids on irrigated oats as well as the response of different cultivars of cereals regarding the resistance to these aphids and the influence on the host/parasitoid relationships were studied during two years in São Carlos, Brazil. Rhopalosiphum padi (L.) was the predominant aphid observed throughout the study, while the other species were rarely found. Five species of parasitic Hymenoptera were found: three primary parasitoids, Lysiphlebus testaceipes (Cresson), Aphidius colemani (Viereck) and Diaeretiella rapae (M'Intosh) and two hy
View details →Negative / Null Result ReportOpen accessAccounting. Bookkeeping
Klaudia Stephanie Ginting, Nisrul Irawati, Chairul Muluk · 2023 · Jurnal Akademi Akuntansi
Purpose: This study aims to examine the effect of liquidity ratios, activity, leverage, and company size on dividend policy through the financial performance of consumer non-cyclical companies for the 2017-2021 period. Methodology/approach: The sampling technique using purposive sampling method obtained 27 companies as research samples. Data analysis techniques using panel data analysis and path analysis. Findings: The results showed that liquidity (CR) and financial performance (ROA) had a significant negative effect on dividend policy (DPR). Total Asset Turnover has a significant positive ef
View details →Negative / Null Result ReportOpen accessScience (General)
Fengbo Jin, Wanlu Tian, Leiming Xia et al. · 2024 · Heliyon
Background: Patients with leukemia rely on social and family support. This study aimed to explore the knowledge, attitude, and practice (KAP) toward leukemia among family members of patients with leukemia and the general population in southeast China. Methods: A cross-sectional study was conducted in September 2022 in southeast China (Anhui Province). The KAP scores and demographic data were assessed by questionnaire and analyzed by multivariable logistic regression and structural equation modeling. Results: A total of 760 valid questionnaires were collected, including 117 (15.39%) answered by
View details →Negative / Null Result ReportOpen accessVeterinary medicine
Felista Mwangi, Areen Dallasheh, Mugagga Kalyesubula et al. · 2023 · Animals
This study investigated the effect of dietary flavour supplements on the preference, feed efficiency and expression of the sweet taste receptor family 1 members 2 and 3 ( T1R2 + T1R3 ), and sodium-glucose linked transporter 1 ( SGLT1 ) genes in the lambs’ small intestines. Eight, five-month-old, Israeli crossbred Assaf lambs were offered 16 different non-nutritive commercial flavours in rolled barley and ground corn. Capsicum and sucram were the most preferred non-aroma flavours ( p = 0.020), while milky ( p T1R2 , T1R3 and SGLT1 relative gene expression evaluated from the proximal jejunum bio
View details →Negative / Null Result ReportOpen accessMedical technology
Jinsoo Rhu, Kyo Won Lee, Young Jae Chung et al. · 2019 · Korean Journal of Transplantation
Background : This study aimed to develop and validate the Kidney Transplantation and Quality of Life (KTQoL) questionnaire to evaluate the quality of life (QoL) in Korean kidney transplantation (KT) patients. During the validation, the KTQoL was used to compare the QoL of KT patients before and after conversion from twice-daily to a once-daily regimen of tacrolimus.Methods : Construct and content validity of the 24-item KTQoL was evaluated using factor analysis and a panel of experts, respectively. The questionnaire was validated in 50 KT patients, conducted before and after conversion from tw
View details →Negative / Null Result ReportOpen accessSocial sciences (General)
Karimullah Mohammadi, Mohammad Mahfoz Faqiri · 2026 · Journal of Social Sciences and Humanities
The purpose of this study is to examine the interrelationship among foreign direct investment (FDI), exports, imports, and economic growth in Afghanistan during the period 2002–2023. To achieve this objective, annual time series data and the Autoregressive Distributed Lag (ARDL) econometric model were employed. The estimation results indicate that the negative and statistically significant coefficient of the error correction term (-0.2694) reflects an adjustment speed of approximately 27 percent of short-term deviations in gross domestic product (GDP) toward long-term equilibrium in each perio
View details →Negative / Null Result ReportOpen accessMedicine
Gabriel Danyagri, Qing-Lai Dang · 2013 · PLoS ONE
Global climate change is expected to affect how plants respond to their physical and biological environments. In this study, we examined the effects of elevated CO2 ([CO2]) and low soil moisture on the physiological responses of mountain maple (Acer spicatum L.) seedlings to light availability. The seedlings were grown at ambient (392 µmol mol(-1)) and elevated (784 µmol mol(-1)) [CO2], low and high soil moisture (M) regimes, at high light (100%) and low light (30%) in the greenhouse for one growing season. We measured net photosynthesis (A), stomatal conductance (g s), instantaneous water use
View details →Negative / Null Result ReportOpen accessMathematics
Mashhour A. Alazwari, Mohammad Reza Safaei · 2021 · Mathematics
In the present study, a novel configuration of a rotating tube bundle was simulated under non-isothermal hydrodynamic conditions using a mixture model. Eight fins were considered in this study, which targeted the hydrodynamics of the system. An aqueous copper nanofluid was used as the heat transfer fluid. Various operating factors, such as rotation speed (up to 500 rad/s), Reynolds number (10–80), and concentration of the nanofluid (0.0–4.0%) were applied, and the performance of the microchannel heat exchanger was assessed. It was found that the heat transfer coefficient of the system could be
View details →Negative / Null Result ReportOpen accessFinance
Esa Martawati, Samin Samin · 2015 · Ekonomi dan Bisnis
This study aims to examines the effect of firm size and institutional ownership on company performance with debt policy as intervening variable in consumer goods company listed on the Indonesian Stock Exchange. The sample of this research amount 25 consumer goods company listed on the Indonesian Stock Exchange during the period 2008-2011 that were selected by using purposive sampling method. The data used are secondary data from financial statements published by the Indonesian Stock Exchange. The analysis technique used here is path analysis. The result of the research show firm size and insti
View details →Negative / Null Result ReportOpen accessElectrical engineering. Electronics. Nuclear engineering
Bunyarat Umsura, Wanus Srimaharaj, Phakkharawat Sittiprapaporn et al. · 2025 · IEEE Access
Relaxation, which refers to the absence of tension and stress, is important for health because extended periods of tension may lead to illness. This study detected induced relaxation through electroencephalography (EEG) for the real-time monitoring of brain activity. The Multivariate Empirical Mode Decomposition with Dynamic Phase-Synchronized Hilbert-Huang Transform (MEMD-DPS-HHT) algorithm was utilized to extract dynamic brain wave patterns from the EEG data of participants exposed to the blended essential oils. Preprocessing included artifact removal using independent component analysis (IC
View details →Negative / Null Result ReportOpen accessEnvironmental sciences
Chenjie Dong, Yuzheng Gu, Yinglan Jia et al. · 2023 · Environmental Research Communications
As the basic units of soil structure, soil aggregate is essential for maintaining soil stability. Intensified freeze–thaw cycles have deeply affected the size distribution and stability of aggregate under global warming. To date, it is still lacking about the effects of freeze–thaw cycles on aggregate in the permafrost regions of the Qinghai-Tibetan Plateau (QTP). Therefore, we investigated the effects of diurnal and seasonal freeze–thaw processes on soil aggregate. Our results showed that the durations of thawing and freezing periods in the 0–10 cm layer were longer than in the 10–20 cm layer
View details →Negative / Null Result ReportOpen accessAccounting. Bookkeeping
Idrianita Anis · 2017 · Jurnal ASET (Akuntansi Riset)
Abstract. This study examine the association between Corporate Sosial Responsibility (CSR), corporate tax-aggressiveness and stock return. It also examine moderating effect of the effectiveness of audit committee as corporate governance mechanism to the association of CSR disclosure to corporate tax-aggressiveness. Examination conducted on 173 firm-years that were selected by purposive sampling method from manufacturing firm listed at IDX from 2011-2013. By measuring the corporate tax- aggressiveness through 4 measures: Effective Tax Rates (ETR), Cash-ETR, Book-Tax Difference (BTD), Abnormal-B
View details →Negative / Null Result ReportOpen accessOrganic chemistry
Mirosław Wyszkowski, Jadwiga Wyszkowska, Natalia Kordala et al. · 2022 · Molecules
Among the large group of xenobiotics released into the environment, petroleum derivatives are particularly dangerous, especially given continuing industrial development and the rising demand for fuel. As increasing amounts of fly ash and sewage sludge are released, it becomes necessary to explore new methods of reusing these types of waste as reclamation agents or nutrient sources. The present study examined how soil contamination with Eco-Diesel oil (0; 10; 20 cm 3 kg −1 soil) affected the trace-element content in the aerial parts of maize. Coal and sludge ashes were used as reclamation agent
View details →Negative / Null Result ReportOpen accessVeterinary medicine
Sandra D. Taylor, Priscila B. S. Serpa, Andrea P. Santos et al. · 2022 · Journal of Veterinary Internal Medicine
Abstract Background A systemic and dysregulated immune response to infection contributes to morbidity and mortality associated with sepsis. Peripheral blood‐derived mesenchymal stromal cells (PB‐MSC) mitigate inflammation in animal models of sepsis. Allogeneic PB‐MSC administered IV to horses is well‐tolerated but therapeutic benefits are unknown. Hypothesis After IV lipopolysaccharide (LPS) infusion, horses treated with PB‐MSC would have less severe clinical signs, clinicopathological abnormalities, inflammatory cytokine gene expression, and oxidative stress compared to controls administered
View details →Negative / Null Result ReportOpen accessVeterinary medicine
S. A. Shamoon¹, M. N. Saleh² and N.Y.Abbo² · 2009 · Iraqi Journal of Veterinary Sciences
This study was conducted on 2 stages using 18 Awassi lambs with average body weight (45kg). Animals were divided into 3 groups of six lambs each. During the first stage, the groups of lambs were individually fed on one of the three rations, which consisted mainly of barley, wheat bran and soybean meal, and contain three graded levels of crude protein 14, 16 and 18% in addition to urea and wheat straw. During the second stage lambs were fed on the same ration after treating barely and wheat bran with formaldehyde. Lambs were fed for 10 days as preperiod and then five days for fecal collection,
View details →Negative / Null Result ReportOpen accessBotany
Agnese Anta Liepiņa, Sabīne Ieviņa, Endijs Bāders et al. · 2024 · Plants
Over the past few decades, increasing populations of cervid species in the Baltic region have reduced the quality and vitality of cultivated Norway spruce ( Picea abies (L.) Karst.) stands. This study evaluated the effect of bark stripping on the volume growth of spruce trees in Latvia. Data collection took place in two forest stands. In each stand, 20 Norway spruce trees were sampled, 10 with visible bark damage scars and 10 control trees. Stem discs were collected from control trees at specified heights (0 m, 0.5 m, 1 m, 1.3 m, and 2 m, and then at one-metre intervals up to the top) and from
View details →Negative / Null Result ReportOpen accessMedicine
Arne Bilet, Christiane K Bauer · 2012 · PLoS ONE
NS1643 is one of the small molecule HERG (Kv11.1) channel activators and has also been found to increase erg2 (Kv11.2) currents. We now investigated whether NS1643 is also able to act as an activator of Kv11.3 (erg3) channels expressed in CHO cells. Activation of rat Kv11.3 current occurred in a dose-dependent manner and maximal current increasing effects were obtained with 10 µM NS1643. At this concentration, steady-state outward current increased by about 80% and the current increase was associated with a significant shift in the voltage dependence of activation to more negative potentials b
View details →Negative / Null Result ReportOpen accessGeriatrics
Veronika Keppner, Sebastian Krumpoch, Robert Kob et al. · 2023 · BMC Geriatrics
Abstract Background The risk of older adults being injured or killed in a bicycle accident increases significantly due to the age-related decline of physical function. Therefore, targeted interventions for older adults to improve safe cycling competence (CC) are urgently needed. Methods The “Safer Cycling in Older Age” (SiFAr) randomized controlled trial investigated if a progressive multi-component training program related to cycling improves CC of older adults. Between June 2020 and May 2022, 127 community-dwelling persons living in the area Nürnberg-Fürth-Erlangen, Germany aged 65 years and
View details →Negative / Null Result ReportOpen accessPlant ecology
Sabah El-Banna. · 2006 · Journal of Plant Protection and Pathology
The present study was undertaken to investigate the effects of a single (24 h) and repeated (7 days) doses of deltamethrin (10 rngikg body weight daily) on hepatic drug metabolizing enzymes. The hepatic content of microsomal protein, cytochrome P450 and b5. activities of NADPH cytochrome C reductase, amidopyrine N—demethylase. aniline-4shydroxylase. glutathion S-transeferase and the level of thiobarbituric acid reactive substances (TEARS) were determined. The obtained results indicated that a single dose of deltamethrin had no significant effect on hepatic microsomal proteins, cytochrome b5, am
View details →Negative / Null Result ReportOpen accessEnvironmental sciences
Pakpahan Novriaman, Maryati Sri, Susanti Desi · 2023 · E3S Web of Conferences
The combination of oleogelators had potential to exploit synergistic effects that contributed to functionality of oleogel. Red palm oil provided high carotenoids which add nutrition to oleogel. This research is aimed to provide high carotenoids oleogel using oleogelators combinations. Stability, oil binding capacity, hardness, thermal profile and total carotenoid were observed to learn oleogelator effect. This study was designed using a factorial completely randomized design consisting of three factors, are concentrations of ethyl cellulose (Ec), monoglycerol stearate (Ms) and beeswax (Bw). Et
View details →Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system
Jakub Droś, Katarzyna Kowalska, Paulina Pasińska et al. · 2023 · BMC Neurology
Abstract Background Cognitive impairment is a common complication of the acute phase of stroke, which can be transient and resolve while still in the hospital. This study evaluated the prevalence and risk factors for transient cognitive impairment and their impact on long-term prognosis in a population of acute-phase stroke patients. Methods Consecutive patients admitted to a stroke unit with acute stroke or transient ischemic attack were screened twice for cognitive impairment using the parallel version of Montreal Cognitive Assessment: the first time between the first and third day and the s
View details →Negative / Null Result ReportOpen accessEducation (General)
Rahmah Johar, Rahmah Johar, M. Ikhsan et al. · 2025 · Frontiers in Education
Mathematical communication skills are essential for helping students grasp mathematical concepts. Fostering students’ knowledge of Islamic values can also encourage them to relate mathematical topics to real-world situations, particularly in worship, enhancing their mathematical communication. Therefore, an innovative teaching approach is crucial to improving students’ mathematical communication and understanding of Islamic values. This study investigates the integration of these concepts within mathematics through the contextualized framework of Qurban. The study explores how an interactive w
View details →Negative / Null Result ReportOpen accessMedicine (General)
Yonghong Wang, Yonghong Wang, Bei Wu et al. · 2025 · Frontiers in Medicine
ObjectiveAcute liver failure (ALF) is a rare yet serious clinical syndrome. Recent studies have indicated that stem cells can effectively treat this condition. However, the optimal route for stem cell transplantation in the treatment of ALF remains unclear. This study aims to investigate the most effective transplantation route for stem cell therapy in ALF.MethodsHuman umbilical cord mesenchymal stem cells (hUC-MSCs) expressing both luciferase and green fluorescent protein were generated using a lentiviral vector. The hUC-MSCs were transplanted via the tail vein, portal vein, and abdominal cav
View details →Negative / Null Result ReportOpen accessMedicine
Roni F Rayes, Tamás Kálai, Kálmán Hideg et al. · 2011 · PLoS ONE
The dynamics of four regions of tropomyosin was assessed using saturation transfer electron paramagnetic resonance in the muscle fiber. In order to fully immobilize the spin probe on the surface of tropomyosin, a bi-functional spin label was attached to i,i+4 positions via cysteine mutagenesis. The dynamics of bi-functionally labeled tropomyosin mutants decreased by three orders of magnitude when reconstituted into "ghost muscle fibers". The rates of motion varied along the length of tropomyosin with the C-terminus position 268/272 being one order of magnitude slower then N-terminal domain or
View details →Negative / Null Result ReportOpen accessTechnology
Kerong Ren, Haobing Han, Wentao Xu et al. · 2023 · Applied Sciences
To address the impact of rivet arrangement on the strengths of riveted lap joints, the failure modes and failure mechanisms of riveted lap joints were first studied using finite element analysis software. Next, the effects of the number of rivets, rivet rows, rivet arrangement, and row spacing on the lap joint strength were studied using the peak load as the evaluation index. Then, we proposed the concept of line load density to solve the problem that a varying rivet spacing and rivet edge distance will change the width of the sheet and thus the maximum load capacity, which is used as an index
View details →Negative / Null Result ReportOpen accessAgriculture
Saul Carvalho, Leticia Caroline de Oliveira, Rafaela Souto Pereira et al. · 2025 · Revista de Agricultura Neotropical
Light and shading after application play an important role on herbicide efficacy, however its effect on different mechanisms of action is not well understood. Therefore, this work was developed with the objective of evaluating the effect of shading on the efficacy of post-emergence application of herbicides with different mechanisms of action. Five independent greenhouse experiments were carried out in Machado - MG, using the herbicides atrazine (500 and 1,000 g ha-1), dicamba (240 and 480 g ha-1), diquat (200 and 400 g ha-1), saflufenacil (24.5 and 49.0 g ha-1), and tembotrione (50.4 and 100.
View details →Negative / Null Result ReportOpen accessAgriculture
Shinsuke Agehara, Maria Cecilia do Nascimento Nunes · 2021 · Agronomy
Strawberry ( Fragaria × ananassa Duch.) yields in winter production regions are greatly affected by early-season nitrogen (N) fertilization, especially when pre-plant N is not applied. In Florida, United States, applying N at high rates during the early season is a common fertilization practice, but little is known about its impact on fruit quality. The objective of this study was to examine season and early-season N fertilization effects on yield and physicochemical attributes of ‘Florida Radiance’ strawberry grown under subtropical climate conditions. Field experiments were conducted in west
View details →Negative / Null Result ReportOpen accessNuclear engineering. Atomic power
Min Ho Lee, Dong Wook Jerng, In Cheol Bang · 2023 · Nuclear Engineering and Technology
The temperature distribution of the reactor pool under natural circulation induced by the RVACS operation was experimentally studied. According to the Bo’ based similarity law, which could reproduce the temperature distribution of the working fluid under natural circulation, SINCRO-2D facility was designed based on the PGSFR. It was reduced to 1 : 25 in length scale, having water as a simulant of the sodium, which is the original working fluid. In general, temperature was stratified, however, effect of the natural circulation flow could be observed by the entrainment of the stratified temperat
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