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
View details →Negative / Null Result ReportOpen accessAquaculture. Fisheries. Angling
Li'na LIU, Jinjin WANG, Meijie LIAO et al. · 2023 · Progress in Fishery Sciences
In this study, two kinds of shark repellents, chemical shark repellent and electric pulse shark-repelling device were selected to test their effects on seawater quality as well as the physiology and survival of fish using simulated ecology experiments. Three marine fish species, Japanese flounder (Paralichthys olivaceus), black rockfish (Sebastes schlegelii), and spotted grouper (Oplegnathus punctatus) were selected as test subjects. The results of water quality indicators showed that the chemical shark repellent could significantly reduce the water transparency and pH (P < 0.05), while the el
View details →Negative / Null Result ReportOpen accessPlant culture
Yiqing Feng, Xin Fu, Lujie Han et al. · 2021 · Frontiers in Plant Science
Melatonin (MT) and nitric oxide (NO) are two multifunctional signaling molecules that are involved in the response of plants to abiotic stresses. However, how MT and NO synergize in response to cold stress affecting plants is still not clear. In this study, we found that endogenous MT accumulation under cold stress was positively correlated with cold tolerance in different varieties of cucumber seedlings. The data presented here also provide evidence that endogenous NO is involved in the response to cold stress. About 100 μM MT significantly increased the nitrate reductase (NR) activity, NR-re
View details →Negative / Null Result ReportOpen accessPsychology
Erika C. S. Künstler, Melanie D. Penning, Natan Napiórkowski et al. · 2018 · Frontiers in Psychology
Older adults show higher dual task performance decrements than younger adults. While this is assumed to be related to attentional capacity reductions, the precise affected functions are not specified. Such specification is, however, possible based on the “theory of visual attention” (TVA) which allows for modeling of distinct attentional capacity parameters. Furthermore, it is unclear whether older adults show qualitatively different attentional effects or whether they show the same effects as younger adults experience under more challenging conditions. By varying the complexity of the seconda
View details →Negative / Null Result ReportOpen accessAnimal biochemistry
Samah El-Sharkawy, A. Gabr, F. Khalil · 2013 · Journal of Animal and Poultry Production
This study was conducted to evaluate the effect of feeding different levels of DDGS in the diets of tilapia fingerlings on growth performance, feed utilization, chemical composition of the whole fish body, blood hematological and economic efficiency. Therefore, five grading levels of DDGS ( 0, 5, 10, 15 and 20% ( D1- D5)) were used to replace soybean meal and yellow corn protein in approximately five isonitrogenous and isocaloric diets. Fish were stocked in a rearing plastic tank for two weeks adaptation period, then it were stocked at the rate of 5 fish/glass aquarium with initial weight of 6
View details →Negative / Null Result ReportOpen accessMedicine
Anita Raj, Mohan Ghule, Julie Ritter et al. · 2016 · PLoS ONE
Background Despite ongoing recommendations to increase male engagement and gender-equity (GE) counseling in family planning (FP) services, few such programs have been implemented and rigorously evaluated. This study evaluates the impact of CHARM, a three-session GE+FP counseling intervention delivered by male health care providers to married men, alone (sessions 1&2) and with their wives (session 3) in India. Methods and findings A two-armed cluster randomized controlled trial was conducted with young married couples (N = 1081 couples) recruited from 50 geographic clusters (25 clusters randomi
View details →Negative / Null Result ReportOpen accessScience (General)
Weerada Vorachart, Nonglak Sombuntham, Kulthida Parakonthun · 2022 · Heliyon
Objectives: The objectives of this study were to evaluate the long-term effects of beer and milk tea on the shear bond strength (SBS) of adhesive precoated brackets and conventional adhesive on brackets. Methods: The 150 metal brackets were bonded to maxillary permanent premolars and divided into two groups based on adhesive type: (1) Transbond PLUS Color Change Adhesive (TP) and (2) Flash-Free adhesive precoated (APC FF). The bonding processes were carried out exactly as recommended by the manufacturer. Each group’s samples were randomly divided into five subgroups with different immersion so
View details →Negative / Null Result ReportOpen accessMedicine (General)
Vinod Babu .K, Akshata Akalwadi, Sai Kumar .N et al. · 2015 · International Journal of Physiotherapy
Background: Acupuncture TENS is used to improve pain instead of invasive acupuncture. Acupuncture shown to improve dyspnoea and lung functions in COPD (Chronic Obstructive Pulmonary Disease) patients. The purpose of the study is to determine Short term effectiveness of Acupuncture-TENS in reducing dyspnea and improving lung functions for subjects with moderate COPD. Method: An experimental study design, selected 30 geriatric subjects with COPD randomized 15 subjects into each Study and Control group. Study group received Acu-TENS for 45 minutes for total 5 sessions, while control group receive
View details →Negative / Null Result ReportOpen accessTechnology
Anawati Anawati, Hidetaka Asoh, Sachiko Ono · 2018 · International Journal of Technology
The characteristics of coatings formed by Plasma Electrolytic Oxidation (PEO) are affected by the composition of metal substrates. In this work, the effect of alloying element Ca (0, 1 and 2 wt%) on the degradation behavior and apatite-forming ability of PEO coated AZ61 magnesium alloys was clarified by means of polarization measurements in 0.9% NaCl solution and an in-vitro test in Simulated Body Fluid (SBF), respectively. The AZ61 alloys were subjected to plasma electrolytic oxidation at a constant current of 200 A/m2 at 25°C for 8 min in 0.5 M Na3PO4 solution. The surface investigation sugg
View details →Negative / Null Result ReportOpen accessAgriculture
Mirna Anriani Siregar, Azwar Ma'as, Makruf Nurudin · 2021 · Ilmu Pertanian (Agricultural Science)
The use of mineral soil analysis procedures in peat soils is considered unsuitable. Peat soil is vulnerable to disturbance, which leads to the damage of peat inert structure, such as the sifting and drying process. The objective of this study was to obtain the proper methods of preparation and extraction to be used in peat soils that can reflect the conditions on field. The experiment was carried out in the laboratory of Soil Science Department UGM by using the peat soil samples taken from Padang Island, Riau, arranged in a factorial randomized block design with three factors (peat soil prepar
View details →Negative / Null Result ReportOpen accessAgriculture (General)
Hongzheng Shen, Shilei Li, Kexin Sun et al. · 2023 · Crop and Environment
Irrigation and nitrogen (N) input are effective methods of balancing crop yields and greenhouse gas (GHG) emissions. However, the effects of irrigation and N management on the GHG emission of winter wheat production systems have not yet been well documented. Therefore, we conducted 2-year field experiments on winter wheat and studied the effects of irrigation and N reduction/replacement on GHG emissions, grain yield, global warming potential (GWP), and GHG emission intensity (GHGI). The winter wheat was irrigated once or twice with 60 or 90 mm each time. Five N reduction/replacement treatment
View details →Negative / Null Result ReportOpen accessTechnology
Yanchun Yin, Chuanru Yao, Yueyong Han et al. · 2024 · Energy Science & Engineering
ABSTRACT As an effective means of coal burst prevention, large‐diameter drilling pressure relief technology have been widely used in coal burst mines in China. Engineering practice shows that drilling pressure relief has obvious time‐effect. Through the establishment of drilling pressure relief numerical model, the evolution law of stress field and plastic zone in different periods after drilling was studied. The evolution of the pressure relief effect of large‐diameter borehole is closely related to the development degree of cracks around the borehole. The stress transfer process after drilli
View details →Negative / Null Result ReportOpen accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens
Ruixue Yang, Xuejiao Zeng, Xierenguli Alimu et al. · 2025 · Cancer Immunology, Immunotherapy
Abstract Objective This study investigated the impact of innate lymphoid cell type 2 (ILC2s) on the function of regulatory T cells (Treg) and CD8+ T cells in chronic lymphocytic leukemia (CLL) through IL-9. Methods Peripheral blood samples were collected from CLL patients (n = 52) and healthy controls (n = 30). ILC2 proportions and IL-9 levels were assessed using flow cytometry and ELISA. Immunofluorescence staining was performed to stain GATA3, CRTH2, and IL-9 in cervical lymph nodes from CLL patients (n = 10) and control subjects with reactive lymphadenitis (n = 10). Correlation analysis bet
View details →Negative / Null Result ReportOpen accessMedical physics. Medical radiology. Nuclear medicine
Armin D. Tavakkoli, BA, Megan A. Clark, BE, Alireza Kheirollah, PhD et al. · 2024 · Advances in Radiation Oncology
Purpose: Ultra High Dose-Rate (UHDR) radiation has been reported to spare normal tissue, compared with Conventional Dose-Rate (CDR) radiation. However, important work remains to be done to improve the reproducibility of the FLASH effect. A better understanding of the biologic factors that modulate the FLASH effect may shed light on the mechanism of FLASH sparing. Here, we evaluated whether sex and/or the use of 100% oxygen as a carrier gas during irradiation contribute to the variability of the FLASH effect. Methods and Materials: C57BL/6 mice (24 male, 24 female) were anesthetized using isofl
View details →Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system
Minghui Lu, Jiajun Wei, Qiang Cai · 2026 · Frontiers in Neurology
BackgroundThe optimal timing for tracheostomy in patients with intracerebral hemorrhage extending into the ventricles who require mechanical ventilation remains controversial, and there is a paucity of evidence to guide clinical practice. This study aimed to elucidate the impact of early vs. late tracheostomy on clinical outcomes and complications in this population, utilizing multivariable models to identify risk factors and define the potential beneficiary population.MethodsThis single-center retrospective cohort study consecutively enrolled 157 patients with severe spontaneous intracerebral
View details →Negative / Null Result ReportOpen accessForestry
Jones Akuaku, Rita Sam · 2025 · International Journal of Forestry Research
The African baobab (Adansonia digitata L.) is a priority Pan-African tree species. Insect pests that are associated with and damage domesticated baobab are largely unknown in the production areas of baobab. To identify and document insect pests associated with domesticated African baobab for the first time, mature and young domesticated baobab plants were, respectively, surveyed on the research fields and nursery of the Ho Technical University in Ho, Ghana. The survey targeted all insects found on baobab with the goal of documenting pests that infest baobab plants. Collected insect samples wer
View details →Negative / Null Result ReportOpen accessGynecology and obstetrics
Wenwen Zhang, Huimin Tang, Qiucheng Jia et al. · 2024 · Clinical and Experimental Obstetrics & Gynecology
Background: To evaluate the effect of carbohydrate antigen 125 (CA125) and CA19-9 in distinguishing stage Ⅲ and Ⅳ endometriosis from benign and malignant tumors, and to explore whether it is related to the clinical features of the disease. Methods: In a retrospective cohort study based on clinical data from hospitals, a total of 183 patients with pathologically confirmed diagnosis of ovarian endometriotic cysts (OEC) in Hainan Provincial People’s Hospital for surgical treatment from January 2019 to August 2022 were selected as the case group, and a total of 276 cases of benign diseases, includ
View details →Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system
Aleš Kopal, Eva Mejzlíková, Jana Lízrová Preiningerová et al. · 2015 · Parkinson's Disease
Parkinson’s disease (PD) is characterized by motor and nonmotor symptoms. Nonmotor symptoms include primarily visual hallucinations (VH). The aim of our study was to establish whether patients with PD and visual hallucinations (PDH+) have structural changes of retina detected by an optical coherence tomography (OCT) in comparison with PD patients without visual hallucinations (PDH−). We examined 52 PD patients (18 with VH, 34 without VH) and 15 age and sex matched healthy controls. Retinal nerve fiber layer (RNFL) thickness and macular thickness and volume were assessed by OCT. Functional impa
View details →Negative / Null Result ReportOpen accessDentistry
Naser Sargolzaie, Vahid Reza Askari, Maryam Najjar et al. · 2024 · Journal of Dental School
Objectives This study aimed to investigate the effect of propolis-based mouthwash on the gingival parameters of generalized chronic gingivitis cases in a randomized controlled clinical trial. Methods A total number of 69 patients with generalized chronic gingivitis were randomly assigned into three groups (N=23): propolis, chlorhexidine, or placebo mouthwash. The gingival and bleeding indices were evaluated before and after two weeks of mouthwash use. Data analyses were performed using Kruskal-Wallis test, one-way analysis of variance, and paired t-test at p<0 .05. Results The average gingival
View details →Negative / Null Result ReportOpen accessGeriatrics
Inderpal Singh, Chris Edwards, Anser Anwar · 2018 · Geriatrics
Single-room ward design has previously been associated with increased risk of inpatient falls and adverse outcomes. However, following quality initiatives, the incidence of inpatient falls has shown a sustained reduction. Benefits have also been observed in the reduction of hip fractures. However, one-year mortality trends have not been reported. The aim of this observational study is to report the trends in one-year mortality rates before and after implementing quality-improvement initiatives to prevent inpatient falls over the last 5 years (2012–2016). This retrospective observational study
View details →Negative / Null Result ReportOpen accessAgriculture (General)
Luciene Martins Moreira, Louise Larissa May-de Mio · 2009 · Ciência e Agrotecnologia
A podridão parda é a doença mais importante para a cultura do pessegueiro, entretanto, no Brasil são escassos os trabalhos realizados a campo visando o seu controle. Objetivou-se, neste trabalho, selecionar fungicidas em laboratório e avaliar a sua eficiência e de fosfitos a campo, para o controle da podridão parda monitorando as fases de desenvolvimento de frutos e pós-colheita, além de avaliar as características qualitativas dos frutos. O experimento de campo foi realizado com seis tratamentos e quatro repetições: três fungicidas pré-selecionados in vitro (iminoctadine tris albesilate, myclo
View details →Negative / Null Result ReportOpen accessSurgery
Cheol Woo Park, Myung Ju Lee, Yun Ik Jung · 2018 · Archives of Aesthetic Plastic Surgery
Background Identifying problems and making a surgical plan through a preoperative analysis is important in facial aesthetic surgery. Thus, popular conceptions of an attractive face must be analyzed beforehand. The landmarks used as reference points may change after rhinoplasty, resulting in errors in the prediction and assessment of outcomes. To reduce such errors, it is advantageous to use reference points and landmarks that are subject to minimal variation. This study measured and analyzed landmarks with little preoperative and postoperative variation in rhinoplasty, and established appropri
View details →Negative / Null Result ReportOpen accessVeterinary medicine
Stephanie Bond, Renaud Léguillette · 2024 · Journal of Veterinary Internal Medicine
Abstract Background Nebulized administration of dexamethasone on cytokine regulation in horses with moderate asthma has not been investigated. Objective To investigate the changes in expression of inflammatory cytokine mRNA after nebulized administration of dexamethasone treatment of horses with moderate asthma. Animals Horses with naturally occurring moderate asthma (n = 16) and healthy control horses (n = 4). All horses were kept in a dusty environment during the study. Methods Prospective, parallel, randomized, controlled, blinded clinical trial. Blood endogenous cortisol, tracheal mucus, a
View details →Negative / Null Result ReportOpen accessLanguage and Literature
Ahmad M. Abd El-Aziz · 2022 · Wadī Al-Nīl Lil Dirāsāt wa Al-Buẖūṯ Al-Insāniyyaẗ wa Al-Iğtimāʿiyyaẗ wa Al-Tarbawiyyaẗ
This paper tries to investigate if there is a difference in the memory recall of emotional words between Arabic-English bilinguals. The methodology involves an experiment of free-recall responses to emotional word stimuli by 68 Egyptian Arabic-English bilinguals where the Arabic language is their native language (L1) and English language is their second language (L2). The participants divided into early English learners who acquired L2 at year 6, and late English learners who acquired L2 at year 12. A design of 2 x 2 x 3 three-way mixed ANOVA was administered with three independent variables;
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