Negative / Null Result ReportOpen accessBusiness
Bulathsinhalage Siromi, Pathirawasam Chandrapala · 2017 · Journal of Competitiveness
There is a great awareness among the researchers to carry out researches on corporate governance and it contributes to the firms’ competitive advantage and business success. In today’s turbulent economic environment, competitiveness has become more important than ever for a firm’s survival and success. However, there is a gap in studies focusing on corporate governance and capital structure in the context of Sri Lanka. The aim of this study is to empirically investigate whether attributes of corporate governance affect decisions on capital structure of listed companies in Sri Lanka. The sample
View details →Negative / Null Result ReportOpen accessInternal medicine
Ovcaric Mick, Lea Rod, Sundholm James et al. · 2005 · BMC Medical Genetics
Abstract Background Migraine is a polygenic multifactorial disease, possessing environmental and genetic causative factors with multiple involved genes. Mutations in various ion channel genes are responsible for a number of neurological disorders. KCNN3 is a neuronal small conductance calcium-activated potassium channel gene that contains two polyglutamine tracts, encoded by polymorphic CAG repeats in the gene. This gene plays a critical role in determining the firing pattern of neurons and acts to regulate intracellular calcium channels. Methods The present association study tested whether le
View details →Negative / Null Result ReportOpen accessDentistry
Hakan Türkkahraman, Cenker Küçükeşmen · 2005 · Turkish Journal of Orthodontics
The aim of our study was to compare shear bond strengths of orthodontic brackets bonded with chemically cured, halogen light cured and LED cured adhesive systems. 45 extracted human premolar teeth were randomly divided into 3 groups. Bicuspid metal brackets were bonded on first group of teeth with chemically cured bonding system (Rely-a-Bond). Second group were bonded with halogen light cured bonding system (Light Bond). Last group were bonded with LED light cured bonding system (Light Bond). Each specimen was then loaded to universal testing machine. Bond strength was determined in the shear
View details →Negative / Null Result ReportOpen accessOrthopedic surgery
Ameya S. Kamat · 2011 · Advances in Orthopedics
Aims. Emergency debridement has long been the standard of care for open fractures of the tibia as infection is an important complication. The timing of operative debridement can be debated. We review open fractures of the tibia and compare infection rates in those that were operated on within and after 6-hours. Method. 103 consecutive open fractures of the tibia were reviewed. The data was analysed retrospectively with regard to severity of fracture and incidence of infection. Infection rates over a three-month period were compared between the two groups. Results. 12 (11.6%) patients developed
View details →Negative / Null Result ReportOpen accessMedicine
Jun Seok Lee, Ah Ra Jung, Jung Min Park et al. · 2018 · Clinical and Experimental Otorhinolaryngology
Objectives To analyze laryngopharyngeal reflux (LPR) as an acidic, nonacidic, or mixed type according to 24-hour multi-channel intraluminal impedance (MII) pH monitoring and the clinical characteristics of each type. Methods Ninety patients were prospectively enrolled in this study. All patients underwent 24-hour MII pH monitoring as a diagnostic tool. Eighty-three patients were diagnosed with LPR. The patients were classified into three groups according to the pH of the hypopharyngeal probe: the acid reflux group, nonacid reflux group, and mixed reflux group. Subjective symptoms and objective
View details →Negative / Null Result ReportOpen accessMedical physics. Medical radiology. Nuclear medicine
Ye Sheng, Xiaobo Fu, Guobao Wang et al. · 2023 · Cancer Imaging
Abstract Background Several previous studies demonstrated that the combination of self-expandable metallic stents (SEMS) and 125I seed implantation might prolong stent patency and obtain survival benefits for malignant obstructive jaundice (MOJ) patients. However, these studies rarely mentioned a comparison between CT-guided intratumoral 125I seed implantation and intraluminal 125I seed strand insertion combined with stenting for the management of MOJ. This study aimed to further evaluate the safety and efficacy of SEMS combined with 125I brachytherapy in the management of unresectable MOJ. Me
View details →Negative / Null Result ReportOpen accessBiochemistry
Li Jiaohui, Zhong Chengyun, Bian Guanji · 2025 · Journal of Medical Biochemistry
Background: Epilepsy is a prevalent neurological disorder, and evaluating its treatment strategies is highly significant. This study aimed to compare the effects of monotherapy with carbamazepine and levetiracetam on the results of coagulation tests, including prothrombin time, activated partial thromboplastin time, fibrinogen, and D-dimer levels, as well as on seizure control in patients with partial-onset epilepsy. Methods: A total of 89 patients diagnosed with POE and treated at our hospital between January 2023 and January 2024 were enrolled. The patients were divided into the carbamazepin
View details →Negative / Null Result ReportOpen accessNuclear engineering. Atomic power
Junhyuk Jang, Minsoo Lee, Gha-Young Kim et al. · 2025 · Nuclear Engineering and Technology
Copper oxidation at low temperatures below 140 °C and its effects on corrosive behavior in aerobic groundwater are investigated to estimate the intactness of canisters at early stages of disposal. The Cu coupon surface is covered by fine particles that form thin oxide layers after 30 d of oxidation; a thin Cu2O layer of thickness <100 nm is formed after oxidation at 40 °C; after oxidation at 140 °C, the Cu2O surface changes to a CuO layer of thickness <500 nm. The thickness of the Cu surface oxidized at 90 °C is between those of the surfaces oxidized at 40 and 140 °C. All Cu coupons exhibit si
View details →Negative / Null Result ReportOpen accessMedicine
Zainab Y. Ejam, Şevki Adem, Asmaa Kadhim Gatea · 2024 · Medical Journal of Babylon
Background: Vascular endothelial growth factor (VEGF) is crucial for the implantation of a fertilized egg and for the development of placental blood vessels. This study was conducted to detect the serum VEGF level of pregnant with different types of assisted reproductive techniques in relation to the age group, body mass index (BMI), and type of infertility. Objectives: The aim of this study was to determine the levels of serum VEGF in different types of assisted pregnancy. Materials and Methods: Enzyme-linked immunosorbent assay was used for the detection of VEGF levels in the serum of pregna
View details →Negative / Null Result ReportOpen accessSports medicine
Iraj Hoseinzade, Ahmad Abdi, Asieh Abbassi Daloii · 2022 · فیزیولوژی ورزش و فعالیت بدنی
Background and Purpose: Fat tissue, frequently the largest organ in humans, is at the nexus of mechanisms involved in longevity and age-related metabolic dysfunction. Fat distribution and function change dramatically throughout life. Obesity is a major risk factor for development of comorbidities such as type-2 diabetes, neurological disorders, osteoarthritis, cancer, cardiovascular and renal diseases, which is associated with increased senescent cell and heart disorders. Exercise training and natural supplements constitute an indispensable, tool in the management of obesity and obesity-relate
View details →Negative / Null Result ReportOpen accessBiotechnology
Tomáš Svoboda, Daniel Ruman, Milan Gaff et al. · 2015 · BioResources
The influence of selected factors, such as wood species, veneer combinations, and loading cycles, on the bending strength and modulus of elasticity of glued laminated wood was investigated after cyclic loading of 0, 1000, 3000, and 7000 cycles with European beech (Fagus sylvatica (L.)) and Eurasian aspen (Populus tremula (L.)) The laminated woods were created by a combination of densified and non-densified veneers. The 30% densification was carried out by cold rolling. All factors and their interactions had statistically significant influence on the modulus of elasticity. Similarly, the influe
View details →Negative / Null Result ReportOpen accessVeterinary medicine
Tytti Maaria Niemelä, Riitta-Mari Tulamo, Jorge Uriel Carmona et al. · 2019 · Acta Veterinaria Scandinavica
Abstract Background Inflammatory and degenerative activity inside the joint can be studied in vivo by analysis of synovial fluid biomarkers. In addition to pro-inflammatory mediators, several anabolic and anti-inflammatory substances are produced during the disease process. They counteract the catabolic effects of the pro-inflammatory cytokines and thus diminish the cartilage damage. The response of synovial fluid biomarkers after intra-articular hyaluronan injection, alone or in combination with other substances, has been examined only in a few equine studies. The effects of hyaluronan on som
View details →Negative / Null Result ReportOpen accessPharmacy and materia medica
Saeid Abbasi-Maleki, Hadi Yousefi*, Rahim Sharafkhani et al. · 2023 · Research Journal of Pharmacognosy
Background and objectives: Earlier researches have exhibited the antioxidant, antinociceptive, and antiepileptic effects of Ferula gummosa. Considering that antioxidants play a key role in the pathogenesis of depression, the antidepressant potential of the F. gummosa essential oil was assessed by using a mouse models. Methods:Lorke’s method was used to access the acute toxicity of the F. gummosa essential oil. The F. gummosa essential oil (5-40 mg/kg), standard agents, and vehicle were administered to animals. The forced-swimming test (FST), tail suspension test (TST), and open-field test (OFT
View details →Negative / Null Result ReportOpen accessDiseases of the circulatory (Cardiovascular) system
Muzaffar Ali, Deepak Padmanabhan, Khalil Kanjwal et al. · 2021 · Journal of Arrhythmia
Abstract Background Fluoroscopic imaging involves exposure of the patients and the laboratory staff to ionizing radiation. One of the strategies that reduce such exposure in an electrophysiology laboratory is using a three‐dimensional electroanatomic mapping (3D EAM) system for performing these procedures. In this analysis, we have analyzed the effect of fluoroscopy frame rate on the radiation exposure and in‐hospital outcomes in ablation procedures performed under 3D EAM guidance. Methods We retrospectively analyzed all the ablation procedures performed under 3D EAM guidance at our institute
View details →Negative / Null Result ReportOpen accessNutrition. Foods and food supply
Chen Xinyan, Wu Yajie, He Shangfan et al. · 2025 · Nutrition & Metabolism
Abstract Intermittent fasting (IF) as a dietary intervention with potential health benefits has garnered significant attention in recent years. This study investigated the effects of varying fasting intensities on skeletal muscle growth using mouse models. Compared to the normal-diet (ND) control group, short-term fasting induced feeding amount-dependent alterations in skeletal muscle autophagy markers, characterized by elevated LC3B expression, reduced p62 levels, and decreased p-mTOR/mTOR ratio. Notably, short-term mild fasting (sMF) significantly upregulated myogenic (MYH, MyoD) and adipoge
View details →Negative / Null Result ReportOpen accessMedicine
Hakan Hasman, Orhan Cinar, Ahmet Uzun, Erdem Cevik, Loni Jay, Bilgin Comert · 2012 · International Journal of Medical Sciences
Study objective: To compare the effect of normal saline (NS), lactated Ringer's, and Plasmalyte on the acid-base status of dehydrated patients in the emergency department (ED). Method: We conducted a prospective, double-blind, randomized trial of consecutive adult patients who presented to the emergency department with moderate-severe dehydration. Patients were randomly allocated to blindly receive normal saline (NS), lactated Ringer's or Plasmalyte at 20 ml/kg/h for 2 hours. Outcome measures of the study were pH and changes in electrolytes, including serum potassium, sodium, chloride and bica
View details →Negative / Null Result ReportOpen accessAgriculture
José Antonio Suárez Lepe, Carlos Anibal Uthurry · 2007 · OENO One
Aims: Ethyl carbamate (EC) is a toxic compound of major concern for the hygiene quality of wines. Its natural synthesis in wine is connected to the ethanolysis of molecules such as urea (alcoholic fermentation metabolite) and citrulline and carbamyl phosphate (malolactic fermentation metabolites) during ageing. This study reports the effect of adenine, arginine, urea and ammonium phosphate of Vitis vinifera L. cv. Tempranillo must, on EC synthesis in fermented wine using two lactic acid bacteria strains under different microbiological and physicochemical conditions. Methods and results: EC was
View details →Negative / Null Result ReportOpen accessTechnology
Cecília Molnár, Zsófia Pálya, Rita M. Kiss · 2021 · Applied Sciences
Folk dance is a collection of traditional dances that requires years of practicing to perform correctly. The aim of the present study was to develop a complex biomechanical measurement procedure that investigated Hungarian folk dancers’ balancing ability and lower body kinematics through a dance movement called “Kalocsai mars”. Therefore, 11 dancers’ motion (5 female and 6 male; age: 20.5 ± 2.5 years; height: 173.82 ± 7.82 cm; weight: 64.77 ± 8.67 kg) was recorded with an optical-based motion capture system and force platforms simultaneously. Before and after the dancing session, static balanc
View details →Negative / Null Result ReportOpen accessMedicine
Daniel Tchemerinsky Konieczny, Alexander Wieck Fjaeldstad, Kristian Sandberg · 2024 · PLoS ONE
While measures to detect psychophysical olfactory ability are a crucial part of clinicians' assessment of potential olfactory loss, it gives no indication of how olfaction is experienced by the patient and these different aspects often deviate substantially. To ensure quality and reproducibility of subjectively reported olfactory experience and significance, the Importance of Olfaction Questionnaire (IO-Q) was introduced around a decade ago, and while initial validations have produced promising results, important aspects remain nearly unexamined. For example, the test-retest reliability has ra
View details →Negative / Null Result ReportOpen accessBotany
Yuan Wen, Lingyan Zha, Wenke Liu · 2021 · Plants
To understand the dynamic changes of hydroponic lettuce growth, ascorbate (AsA) pool and metabolism under two different dark period light intensities (LL, 20 μmol·m −2 ·s −1 ; CL, 200 μmol·m −2 ·s −1 ) of continuous light and normal light (NL, 0 μmol·m −2 ·s −1 ) provided by red (R) and blue (B) LEDs, the chlorophyll fluorescence parameters, ascorbate pool size, AsA metabolism-related enzyme activities, and H 2 O 2 contents of lettuce were measured at 0, 8, 16, 24, 32, 40, 48, 56, 64, and 72 h after light treatment and the lettuce growth parameters were measured on the 9th day after light trea
View details →Negative / Null Result ReportOpen accessPlant culture
Grecia Hurtado, Kristian Pineda, Moritz Knoche · 2025 · Journal of the American Society for Horticultural Science
Water soaking is a common disorder of field-grown strawberries, and its incidence can be severe. Calcium (Ca) sprays reduce susceptibility to water soaking. Vascular import of Ca to developing strawberry fruit decreases during development as a result of progressive xylem dysfunction. Calcium sprays can raise Ca levels in late-stage strawberry fruit. The objective of this study was to quantify Ca uptake through the fruit skin. Submerging fruit in calcium chloride (CaCl2) solutions increased both the mass of Ca per fruit and the mass of Ca per fruit dry mass. There was no effect of CaCl2 solutio
View details →Negative / Null Result ReportOpen accessMedicine
Han Yuan, Maeng-Kyu KIM · 2025 · Scientific Reports
Abstract This study investigated neuromuscular variations across low to moderate target force levels, three knee joint angles and tibial rotation positions, examining their correlations with muscle morphology and their collective impact on force steadiness (FS). Twelve young adult males performed knee extension tasks under three different tibial rotation conditions: internal rotation (IR), neutral rotation (NR), and external rotation (ER). All tasks involved submaximal isometric contractions at the knee joint. Participants performed submaximal isometric contractions at three knee joint angles
View details →Negative / Null Result ReportOpen accessAgriculture (General)
R. Syaprudin, Megawati Simanjuntak, Heny Kuswanti Suwarsinah · 2023 · Jurnal Manajemen & Agribisnis
Due to the increasingly fast-paced lifestyles and busy lives of urban citizens, the demand for chicken nuggets has continued to rise. This study aims to analyze the effect of the marketing mix (product, place, price, promotion) and the reference group on consumer preference for chicken nuggets through the brand image formed in the market. The respondents consisted of 251 individuals who were selected through voluntary sampling. These respondents were people who had consumed Fiesta and So Good brand chicken nuggets in the last three months. Data were collected through an online questionnaire an
View details →Negative / Null Result ReportOpen accessEngineering geology. Rock mechanics. Soil mechanics. Underground construction
M.M.A. Bader, H.Z. Abd El-Salam, M.R. Mohamed et al. · 2004 · Journal of Soil Sciences and Agricultural Engineering
Two field experiments were conducted at the Experimental Station of Agricultural Research Station at Tag EI·Ezz Dakahlia Governorate during 2000 and 2001 seasons. The used soil was salt affected one. The research aims to study the effect of N-NO'3, N-NH+4 or N-urea on yield and some characters of maize plant as well as macro-micronutrients content in ear leaves at maturity stage (physiological stage) and seeds. Single hybrid CS 10 of maize was used as testing plant within two seasons (2000 and 2001) and the soil salinity levels were 1.69, 5.3 and 11.10 dS/m in 2000, and 1.69, 5.43 and 11.10 ds
View details →Negative / Null Result ReportOpen accessMedicine
Akihiko Kimura, Yuko Ishida, Mizuho Nosaka et al. · 2023 · Scientific Reports
Abstract Estimating time of death is one of the most important problems in forensics. Here, we evaluated the applicability, limitations and reliability of the developed biological clock-based method. We analyzed the expression of the clock genes, BMAL1 and NR1D1, in 318 dead hearts with defined time of death by real-time RT-PCR. For estimating the time of death, we chose two parameters, the NR1D1/BMAL1 ratio and BMAL1/NR1D1 ratio for morning and evening deaths, respectively. The NR1D1/BMAL1 ratio was significantly higher in morning deaths and the BMAL1/NR1D1 ratio was significantly higher in e
View details →Negative / Null Result ReportOpen accessPsychology
Riza Noviana Khoirunnisa, Damajanti Kusuma Dewi, Desi Nurwidawati · 2018 · Jurnal Psikologi Teori dan Terapan
Conventional learning method is viewed to be less effective because it poses the problems of space and time. Information Technology offers a method for more effective online learning called e-learning. This research aims to develop e-learning for the module of Child Development at Department of Psychology Universitas Negeri Surabaya. This study was a developmental research project that used the method of ADDIE (Analysis, Design, Development, Implementation, Evaluation). This model was chosen because the stages of its development are deemed appropriate especially for the refinement and implemen
View details →Negative / Null Result ReportOpen accessProbabilities. Mathematical statistics
Ilya Zulaikha Zulkifli, Nor Faezah Mohamad Razi, Nor Hazlina Mohammad et al. · 2024 · Journal of Computing Research and Innovation
Over recent semesters, the increasing failure rates in STA108 have raised concerns about this course's teaching and learning environment. This issue has prompted an investigation into potential contributing factors, focusing on three main objectives: examining the students’ association between gender and MAT133, exploring the relationship between students’ achievements in MAT133 and their Mathematics grades in the Sijil Pelajaran Malaysia (SPM), and assessing the association between STA108 results and their Mathematics grades in the Sijil Pelajaran Malaysia (SPM). The respondents completed 329
View details →Negative / Null Result ReportOpen accessInfectious and parasitic diseases
Deby Mukendi, Jean-Roger Lilo Kalo, Pascal Lutumba et al. · 2021 · BMC Infectious Diseases
Abstract Background The epidemiology of human cysticercosis and neurocysticercosis, caused by the larval stage of the pork tapeworm Taenia solium, is not well known in the Democratic Republic of Congo (DRC). Within a multicenter etiological and diagnostic study conducted by the NIDIAG consortium (“Better Diagnosis for Neglected Infections”) and investigating several challenging syndromes, we consecutively evaluated from 2012 to 2015 all patients older than 5 years presenting with neurological disorders (neurology cohort) and with fever > 7 days (persistent fever cohort) at the rural hospital o
View details →Negative / Null Result ReportOpen accessMedicine
Ayoola Ibifubara Aiyegbusi, Bosede Abidemi Tella, Ganiyat Adebanke Sanusi · 2020 · Nigerian Postgraduate Medical Journal
Background: Achilles tendinopathy (AT) is one of the most frequently reported ankle and foot overuse injuries. Prior studies have reported altered biomechanical variables of the lower limb as risk factors for the prevalence and severity of AT in athletes, especially in Caucasians, but there are few reports on African elite athletes. Because it is established that anthropometric and biomechanical values vary with racial disposition, this study was designed to investigate the association between selected physical and biomechanical variables of the lower limb and the prevalence and severity of AT
View details →Negative / Null Result ReportOpen accessMedicine (General)
Ammar Kadhim Alzubaidi, Farah Abdulwahab Al-Saadi, Amer Qani Alagele · 2025 · Indonesian Biomedical Journal
BACKGROUND: Many genetic factors are known to be related to osteoporosis, and currently the role of the glucagon-like peptide-1 receptor (GLP-1R) gene in bone health has been studied intensively. Some variation of this gene, such as rs1042044 and rs6458093, are known to be linked to metabolic diseases and lower bone mineral density, however their specific contribution to osteoporosis remains largely unexplored. Therefore, this study was conducted to investigate the combined genotypic effect of rs1042044 and rs6458093 as a genetic risk factor for osteoporosis in postmenopausal Iraqi women. METH
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