Negative / Null Result ReportOpen accessScience
Ruihan Li, Chuankuan Wang, Chunhua Lv et al. · 2025 · Geoderma
Improvements in stocks and stability of forest soil organic carbon can be achieved through the management of tree species. Given the long lifespan of trees and their role as the keystone species in forested ecosystems, decisions regarding tree species management can have a significant impact on soil carbon balance, with effects that may persist for decades. Here, a common garden experiment involving five temperate tree species in northeast China was conducted to quantify the influence of tree species on soil carbon dynamics, including its fractions (mineral-associated organic carbon, particula
View details →DOI: 10.1016/j.geoderma.2025.117185 Negative / Null Result ReportOpen accessLanguage and Literature
Azza Al-Kendi · 2025 · Languages
This study examines the acoustic properties of vowels in foreigner-directed speech (FDS) in interactions between female Omani-Arabic-speaking employers and their foreign domestic helpers (FDHs). Particularly, it investigates whether Arabic corner vowels /i:/, /a:/, and /u:/ undergo acoustic adaptations in FDS. The study also explores the influence of foreign interlocutors’ psycholinguistic characteristics, such as degree of foreign accent, religion, and length of residence (LoR), on the extent of these adaptations. Data were collected from 22 Omani-Arabic-speaking women interacting with their
View details →DOI: 10.3390/languages10040082 Negative / Null Result ReportOpen accessPsychiatry
Stanley N. Caroff, Fan Mu, Rajeev Ayyagari et al. · 2018 · BMC Psychiatry
Abstract Background Data are limited on the benefits and risks of dose reduction in managing side effects associated with antipsychotic treatment. As an example, antipsychotic dose reduction has been recommended in the management of tardive dyskinesia (TD), yet the benefits of lowering doses are not well studied. However, stable maintenance treatment is essential to prevent deterioration and relapse in schizophrenia. Methods A retrospective cohort study was conducted to analyze the healthcare burden of antipsychotic dose reduction in patients with schizophrenia. Medical claims from six US stat
View details →DOI: 10.1186/s12888-018-1889-2 Negative / Null Result ReportOpen accessGeriatrics
Gary N. Landis, Luke Riggan, Hans S. Bell et al. · 2022 · Frontiers in Aging
Mifepristone dramatically increases the life span of mated female Drosophila while reducing the expression of innate immune response genes. Previous results indicated that mifepristone also reduced the load of aero-tolerant bacteria in mated females. Experiments were conducted to further investigate the possible role of bacteria in mifepristone life span effects. Life span was assayed in flies grown from sterilized eggs on autoclaved media and in normally cultured controls in two independent assays. Sterilization increased mated female life span (+8.3% and +57%, respectively), and the effect o
View details →DOI: 10.3389/fragi.2022.924957 Negative / Null Result ReportOpen accessChemical technology
Fei Xu, Yucong Shi, Bin Li et al. · 2024 · Foods
As a natural flavoring agent, vanilla essential oil has a special aroma and flavor, but its volatility and instability limit its value. Therefore, in this study, vanilla essential oil was compounded with cinnamon essential oil to prepare nano-emulsions (composite nano-emulsions called C/VT and C/VM), and the stability of the composite essential oil emulsions was investigated. Transmission electron microscopy (TEM) images showed that the nano-emulsions were spherical in shape and some flocs were observed in C/VM and C/VT. The results showed that the average droplet sizes of C/VM and C/VT increa
View details →DOI: 10.3390/foods13050801 Negative / Null Result ReportOpen accessPsychology
Lili Liu, Shuang Li, Lin Tian et al. · 2024 · Behavioral Sciences
Joint attention (JA), a core deficit in children with autism spectrum disorder (ASD), is crucial for social interaction, emotional understanding, and cognitive development. This study aims to compare and analyze the eye-tracking data of ASD and typically developing children (TDC) during virtual games, exploring how different cue types affect JA performance in ASD children. A total of 31 TDC and 40 ASD children participated in the study. Using eye-tracking devices, we recorded the children’s eye movements as they played virtual games, selecting the correct target based on cues provided by virtu
View details →DOI: 10.3390/bs14100871 Negative / Null Result ReportOpen accessEducation
Muhammad Ridwan, Sitti Rizki Mulyani, Rio Andhika Putra et al. · 2022 · JPPI (Jurnal Penelitian Pendidikan Indonesia)
The objective of this research was to see how salary, leadership support, and work-life balance affected teacher effectiveness. The non-probability sampling approach was applied, as well as a purposive sampling strategy. A total of 150 instructors from Padang City, West Sumatra, were employed in this study. SEM and AMOS 24.0 software were utilized in this study's analysis. Compensation has a considerable impact on teacher performance, according to the findings. Teachers' salary has a huge impact on their work-life balance. Support from leaders has a huge impact on teachers' work-life balance.
View details →DOI: 10.29210/020221851 Negative / Null Result ReportOpen accessMedicine
Chen Yang, Shun-Nan Ge, Jia-Rui Zhang et al. · 2013 · PLoS ONE
High-voltage spindles (HVSs) have been reported to appear spontaneously and widely in the cortical-basal ganglia networks of rats. Our previous study showed that dopamine depletion can significantly increase the power and coherence of HVSs in the globus pallidus (GP) and motor cortex of freely moving rats. However, it is unclear whether dopamine regulates HVS activity by acting on dopamine D₁-like receptors or D₂-like receptors. We employed local-field potential and electrocorticogram methods to simultaneously record the oscillatory activities in the GP and primary motor cortex (M1) in freely
View details →DOI: 10.1371/journal.pone.0064637 Negative / Null Result ReportOpen accessDiseases of the circulatory (Cardiovascular) system
Long Peng, Qianlin Gu, Zhenhua Huang et al. · 2020 · Cardiology Research and Practice
Hyperhomocysteinemia (HHcy) induced endothelial dysfunction is associated with disturbance in circulating endothelial progenitor cells (EPCs). Nevertheless, whether this unfavorable effect of HHcy on circulating EPCs also exists in premenopausal women is still unknown. Therefore, this leaves an area for the investigation of the difference on the number and activity of circulating EPCs in premenopausal women with hyperhomocysteinemia and its underlying mechanism. The number of circulating EPCs was measured by fluorescence-activated cell sorter analysis, as well as DiI-acLDL and lectin fluoresce
View details →DOI: 10.1155/2020/5010243 Negative / Null Result ReportOpen accessMedicine
Mohamad Hosein Toodeh Zaeim, Soghra Yassaei, Hosein Aghili et al. · 2008 · Iranian Journal of Orthodontics
Aim: Nasopharyngeal space is estimated from a point on the posterior part of the soft palate till the nearest point on the wall of the pharynx and the aim of the present study was to study the nasopharyngeal indices in nasal breathers with class I and III malocclusions.Materials and Methods: This was a descriptive analytical study done by the case - control method on 35 lateral cephalometries of patients with skeletal Class III malocclusion as the study group and 30 lateral cephalometries of patients with skeletal Class I malocclusion as the control group. The population under study included p
View details →DOI: 10.22034/ijo.2008.248342 Negative / Null Result ReportOpen accessManagement. Industrial management
Sabrul Wasfi, Heti Mulyati, Joko Purwono · 2020 · Jurnal Aplikasi Manajemen
The Performance of Indonesian researchers is relatively low at the international and ASEAN levels. Moreover, LIPI (Indonesian Institute of Sciences) as one of the largest research institutions in Indonesia, its ranks on webometrics continue to decline. This study aims to prove the factors that influence the performance of LIPI researchers. This study aims to examine the effect of competence, training, organizational support, organizational climate, and researchers’ characteristics on performance. With a stratified proportional sampling data collection technique, we obtained 153 researchers in
View details →DOI: 10.21776/ub.jam.2020.018.03.02 Negative / Null Result ReportOpen accessNutritional diseases. Deficiency diseases
Zohreh Sadat Sangsefidi, Abbas Ali Sangouni, Faezeh Yarhosseini et al. · 2026 · Journal of Health, Population and Nutrition
Abstract Background Available evidence regarding effect of Cornus mas L. fruit extract (CMFE) as an anthocyanins source on glycemic control, insulin resistance, and adiponectin levels among metabolic dysfunction-associated steatotic liver disease (MASLD) patients is limited and controversial. Thus, this study aimed to assess effect of CMFE on glycemic control, insulin resistance, and adiponectin levels in MASLD patients. Methods This double-blind, randomized controlled clinical trial was carried out among 50 MASLD patients for 12 weeks. The participants were randomly categorized into the CMFE
View details →DOI: 10.1186/s41043-025-01186-6 Negative / Null Result ReportOpen accessPediatrics
Mirhadi Mussavi, Mortaza Ghojazadeh, Samayeh dadakhani · 2022 · Iranian Journal of Neonatology
Background: Intratracheal intubation is associated with many side effects. Different groups of drugs have been used to control these side effects, but there is still no consensus on the most suitable drugs. This study aimed to compare the effect and possible side effects of fentanyl, remifentanil, and atropine plus remifentanil on the vital signs of preterm infants in non-emergency intratracheal intubation. Methods: In this randomized clinical trial study, 75 neonates with a gestational age of 27 to 34 weeks who required temporary intubation were included in the study and divided into three gr
View details →DOI: 10.22038/ijn.2022.64315.2242 Negative / Null Result ReportOpen accessAgriculture
Hongbo YI, Chunyan LIU, Yangyang WEI et al. · 2023 · Guangdong nongye kexue
【Objective】It aims to preliminarily reveal the effect of dietary supplementation with porcine Lactobacillus reuteri LR1 on the expression of intestinal extracellular matrix (ECM) in weaned piglets, providing references for the promotion and application of porcine LR1 in animal husbandry.【Method】One hundred and forty-four Duroc-Landrace-Yorkshire crossbred weaned piglets with similar body weights at 21 days of age were selected and randomly divided into three treatment groups, which were fed a basal diet (control group, CON group), a basal diet supplemented with 75 mg/kg of aureomycin and 100 m
View details →DOI: 10.16768/j.issn.1004-874x.2023.11.002 Negative / Null Result ReportOpen accessMedicine
Sirous Nazari pirdoosti, Vahid Valipour dehnou, Ehsan Gharamanlou · 2019 · Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Īlām
Introduction: Transcranial direct current stimulation (tDCS) is a non-invasive technique used to modify the activity of the cortex of the brain. This form of current is capable of inducing changes in the electrical activity inside and outside of the neurons, which leads to a change in the resting membrane potential and thus improves the efficiency of the neural synapse. Therefore, the aim of this study was to investigate the effect of tDCS over motor cortex on strength and endurance performance of healthy collegiate subjects. Materials & Methods: In total, 10 young and healthy male subjects (a
Negative / Null Result ReportOpen accessMedicine (General)
Heera Lee, Somyeong Hwa, Sunga Cho et al. · 2024 · Medicina
Background and Objectives : Polydeoxyribonucleotides (PDRN), composed of DNA fragments derived from salmon DNA, is widely recognized for its regenerative properties. It has been extensively used in medical applications, such as dermatology and wound healing, due to its ability to enhance cellular metabolic activity, stimulate angiogenesis, and promote tissue regeneration. In the field of dentistry, PDRN has shown potential in promoting periodontal healing and bone regeneration. This study aims to investigate the effects of PDRN on the morphology, survival, and osteogenic differentiation of gin
View details →DOI: 10.3390/medicina60101610 Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry
Suwang Zheng, Tianli Fu, Jinlong Yan et al. · 2024 · Journal of NeuroEngineering and Rehabilitation
Abstract Background Temporal interference (TI) stimulation, an innovative non-invasive brain stimulation technique, has the potential to activate neurons in deep brain regions. The objective of this study was to evaluate the effects of repetitive TI stimulation targeting the lower limb motor control area (i.e., the M1 leg area) on lower limb motor function in healthy individuals, which could provide evidence for further translational application of non-invasive deep brain stimulation. Methods In this randomized, double-blinded, parallel-controlled trial, 46 healthy male adults were randomly di
View details →DOI: 10.1186/s12984-024-01336-7 Negative / Null Result ReportOpen accessTheory and practice of education
Muhammet Fatih Alkan, Rukiye Şahin, Ahmet Erdem · 2024 · Educational Academic Research
The new approach in positive psychology is growing rich with the acceptance of life in all aspects and with views on the optimal use of human potential; it is being shaped by a new perspective that can be accepted as a full explanation of not only positive emotion but also of sources and motives of positive emotion, and respect for human. One of the predictors of positive emotion is personality traits. Within this scope, this research aimed at exploring the relationship between personality and eudaimonic well-being. A total of 316 undergraduates participated in the study. The data were collect
View details →DOI: 10.33418/education.1421847 Failed Experiment ReportOpen accessMedicine (General)
Qun Cheng, Xiang‐Yu Fang, Rong‐En Qiu · 2025 · Kaohsiung Journal of Medical Sciences
ABSTRACT Spinal cord injury (SCI) triggers secondary damage, including pain‐induced hypertension, inflammation, and hemorrhage, impairing recovery. This study evaluated the efficacy of general anesthesia with preemptive propofol administration in mitigating secondary damage in SCI rats. SCI was induced in rats using a contusion model. Propofol (100 mg/kg) was administered intraperitoneally either 30 min before (preemptive) or 30 min after intermittent tail shock. Systolic blood pressure (SBP), body weight, food intake, inflammatory markers (interleukin‐1 beta [IL‐1β], interleukin‐6 [IL‐6]), he
View details →DOI: 10.1002/kjm2.70011 Negative / Null Result ReportOpen accessVeterinary medicine
Muneer Wahab Saeed AL-Khafaji · 2016 · Kufa Journal for Veterinary Medical Sciences
The study was conducted on 40 Awassi sheep through the year 2014 from the flock reared in Faculty of agriculture / Kufa University. Five treatments included levels of flax (0.0, 2, 4, 6 and 8) %. Body weight in three ages (live weight at 6month, at 9months and at 12 months) was evaluated using variance analyses. Results showed a significant effect (p≤ 0.05) of flax in live body weight the highest BW6, BW9 and BW12 were in the males group that fed with 8% flax it's about 35.22, 46.06 and 58.22 kg respectively compared with the same level of diet flax in female group it's about 30.81, 37.26 and
View details →DOI: 10.36326/kjvs/2016/v7i14287 Negative / Null Result ReportOpen accessEconomic growth, development, planning
Nora Ria Retnasih, Grisvia Agustin, Dwi Wulandari · 2016 · Jurnal Ekonomi dan Studi Pembangunan
In accordance with the theory of a small open economy, Indonesia including the category of countries whose economies are vulnerable to the effects from another country who has a close working relationship, such as the United States of America (USA). The purpose of this study was to measure the effect of federal funds rate on BI rate; and BI rate implications on exchange rate, economic growth, and consumer price index. This type of research is quantitative. Collecting data using techniques of documentation provided by the Federal Reserve Data (FRED), Bank Indonesia (BI), and Badan Pusat Statist
Negative / Null Result ReportOpen accessAnimal culture
CP Moura, SCB Leite, APA Nogueira et al. · Brazilian Journal of Poultry Science
ABSTRACT Dietary inclusion of lipid sources has been one of the methods adopted by nutritionists aiming at better energy balancing. However, alternative energy feedstuffs have been sought in an attempt to reduce production costs. In this regard, lipid sources that can replace conventional ones, such as beef tallow, cottonseed oil, and sunflower oil have been investigated. The objective of this study was to examine the effects of different lipid sources on the performance, egg quality, biometrics of digestive organs, and bone quality of white-egg commercial layers in the first production cycle.
View details →DOI: 10.1590/1806-9061-2019-1032 Negative / Null Result ReportOpen accessEngineering (General). Civil engineering (General)
Zhenyu Pan, Deyuan Deng, Changsheng Feng et al. · 2022 · Advances in Civil Engineering
In civil engineering, arches, such as steel arch roofs and arch bridges, are often subjected to linear temperature gradient field. It is known that the in-plane instability of parabolic arches is caused by the significant axial force. The arch under the linear temperature gradient field produces complex axial force, and so the instability of arches would be affected by temperature gradient field significantly. However, the analytical solutions of in-plane instability of parabolic arches being subjected to the uniformly distributed vertical load and the temperature gradient field are not solved
View details →DOI: 10.1155/2022/8973013 Negative / Null Result ReportOpen accessBanking
Nadia Kartika, Rr. Iramani · 2014 · Journal of Business & Banking
There are some factors which are assumed to have effect on risk perception and risk attitude. This aims study to explain the effect of internal factors on risk perception and risk attitude. The internal factors in this study consist of overconfidence, experience and emotion. The sample was selected from the investors in Surabaya who invested in capital market. The data were collected by means of questionnaires. The questionnaires of surevy respionses weresidtributed to 104 investors in the capital markets of Surabaya. The analysis was done by using Generalized Structured Component Analysis (GS
View details →DOI: 10.14414/jbb.v3i2.235 Negative / Null Result ReportOpen accessBiology (General)
Oxana Kolomiets, Irina Bakloushinskaya, Mark Pankin et al. · 2023 · Diversity
The basic causes of postzygotic isolation can be elucidated if gametogenesis is studied, which is a drastically different process in males and females. As a step toward clarifying this problem, we obtained an experimental inbred lineage of the eastern mole vole Ellobius tancrei , whose founder animals were animals with identical diploid numbers 2n = 50 but with different Robertsonian translocations (Rb), namely 2Rb4.12 and 2Rb9.13 in the female and 2Rb.2.18 and 2Rb5.9 in the male. Here, we analyzed strictly inbred hybrids (F1, fertile and F10, sterile) using immunocytochemical methods in order
View details →DOI: 10.3390/d15030364 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 →DOI: 10.1109/tnsre.2022.3203079 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 →DOI: 10.3390/agronomy12071534 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 →DOI: 10.1590/s1516-89132004000200001 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 →DOI: 10.22219/jaa.v6i3.26330 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 →DOI: 10.1016/j.heliyon.2024.e26276 