Negative / Null Result ReportOpen accessMedicine
Seyed Mohammadreza Fatemi Khorasgani, Neda Ramezani, Negar Ebrahimi Varnousfaderani · 2020 · Journal of Research in Medical Sciences
Background: Previous studies report an association between joint hypermobility (JH), as a hallmark of connective tissue disorder, and autonomic dysfunction, digestive problems, and irritable bowel syndrome. However, its association with functional constipation (FC) has not been evaluated. This study is run and implemented to justify this theme/topic. Materials and Methods: In this case–control study among 200 subjects, 100 were of FC according to the ROME III Criteria (case group) and each child was matched for age and gender with a healthy control that did not meet criteria for FC (control gr
View details →Negative / Null Result ReportOpen accessPsychology
Monalisa Muniz, Ricardo Primi, Fabiano Koich Miguel · 2007 · Psicologia
The Emotional intelligence supposedly is a mediator variable in the stress control although there is no sufficient empirical evidence supporting this relationship. The purpose of the present research was to study the correlation between emotional intelligence and stress. The participants were 24 city guards who answered the Mayer-Salovey-Caruso Emotional Intelligence Tests V2.0 (MSCEIT) and the Lipp’s Inventory of Stress Symptoms for Adults (ISSL). The results showed no significant correlation between stress and the general score of emotional intelligence. However, analyzing the subtasks score
View details →Negative / Null Result ReportOpen access
David R. Hakes, David C. Rose
A number of empirical studies have failed to find a significant relationship between deficits and interest rates. This "non-finding" has become something of a stylized fact among many economists and is often cited as evidence of the…
View details →Negative / Null Result ReportMedicine
Ciaffi J, Bordini B, Cosentino M et al. · 2026 · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
Osteoarthritis patients undergoing THA or TKA were studied to compare the cumulative incidence of revision after perioperative denosumab versus alendronate. Denosumab was not associated with differences in the incidence of revision after…
View details →Negative / Null Result ReportOpen accessChemical technology
Maximilian J. Chmielinski, Martin A. Cohen, Michael G. Yost et al. · 2022 · Sensors
Available wearable dosimeters suffer from spectral mismatch during the measurement of broadband UV and visible radiation in environments that receive radiation from multiple sources emitting differing spectra. We observed this type of multi-spectra environment in all five Washington State cannabis farms visited during a field study investigating worker exposure to ultraviolet radiation in 2018. Spectroradiometers do not suffer from spectral mismatch in these environments, however, an extensive literature review conducted at the time of writing did not identify any spectroradiometers that were
View details →Negative / Null Result ReportOpen accessNursing
Luana Vieira Toledo, Bárbara Xavier dos Santos, Patrícia de Oliveira Salgado et al. · Revista Brasileira de Enfermagem
ABSTRACT Objectives: to compare tympanic and axillary body temperature values of critical patients before and after the traditional and dry bed bath. Methods: this is a randomized, open crossover clinical trial conducted with 50 adult critical patients. All patients received both types of bed bathing. The tympanic and axillary temperature values were measured at the beginning and end of the baths. The Wilcoxon test or paired Student’s t test was used. Results: elderly and male patients predominated. There was no significant difference between tympanic temperature medians measured during the tr
View details →Negative / Null Result ReportOpen accessPhysiology
Mazen Samie Hassn · 2018 · مجلة الرافدين للعلوم الرياضية
The subject of the research focuses on identifying the differences between the three attempts to test the viability of VC and the contribution of age ratios, and some anthropometric measurements in the best bioenergy test. It also aims to adjust a regression model to predict the biological capacitance in relation to age and some anthropometric variables. The researcher hypothesizes that there are no significant differences between the three tests of the vital capacity, and that the coefficients of the regression model for linear regression equation in the biomass test are not different from ze
View details →Negative / Null Result ReportOpen accessPlant culture
Gy. Horváth, A. Farkas, Gy. L. Szabó · 2004 · International Journal of Horticultural Science
The presence of phloretin-glycosides in the hypanthium and pistil of apple and pear flowers can be verified. Thin layer chromatography is a reliable method for detecting phloretin, gained by acidic hydrolysis. The dominance of phloretin was equally characteristic for flowers in apple (`Sampion', 'Freedom') and pear (Tem-re Bosc', 'Conference') cultivars treated with various bioregulators (Biomit, Bion 50WG, Regalis), no significant difference could be found visually as compared to control samples. Chlorogenic acid and caffeic acid was detected in all apple and pear samples, rutin was present o
View details →Negative / Null Result ReportOpen accessScience
Sang-Suk Choi, Jin Jung, Sung-Ho Her et al. · 2023 · Life
(1) Background: Moderate-intensity statin therapy, when compared to high-intensity statin therapy in Asian populations, has shown no significant difference in cardiovascular prognosis in small studies. The aim of this study was to compare the prognosis of patients based on statin intensity following rotational atherectomy (RA) during high-complexity percutaneous coronary intervention (PCI). (2) Methods: The ROCK registry, a multicenter retrospective study, included patients who had undergone rotational atherectomy (RA) during percutaneous coronary intervention (PCI) at nine tertiary medical ce
View details →Negative / Null Result ReportOpen accessMedicine
LU Yongping, PAN Tingfang · 2025 · Jichu yixue yu linchuang
In order to cultivate interdisciplinary innovative medical talents who can adapt to the development of the needs of national medical care and of global file of medical education, Peking Union Medical College has initiated the project of the “4+4” model, which covers a series of education remodeling like candidate trainees’ enrollment, curriculum integration application of new teaching methods, assessment and evaluation, etc., and has made a great progress. The existing evaluation data show that there is no significant difference between the academic performance of students in the “4+4” trainin
View details →Negative / Null Result ReportOpen accessAnimal culture
Razia Sultana Janampet, Kishan Kumar Malavath, Rajanna Neeradi et al. · 2016 · Veterinary World
Aim: This study was conducted to evaluate the growth performance and nutrient digestibility of guar meal, an unconventional protein-rich feed ingredient in kids in comparison to conventional groundnut cake. Materials and Methods: A total of 18 kids were randomly allotted to three groups, and T1 group was fed on basal diet, T2 and T3 groups were offered diet replacing groundnut cake at 50% and 100% with guar meal, respectively, for a period of 120-day. At the end of the growth trial, a digestibility trial was conducted to evaluate the nutrient utilization. Results: There was no significant diff
View details →Negative / Null Result ReportOpen accessAgriculture
D Sumner · 1963 · California Agriculture
INITIAL TRIALS in 1961 comparing Piper sudan, SX-11 (a sudan x grain sorghum cross) and NK-300 (a forage sorghum) showed that there was no significant difference in total seasonal yield in dry matter production when used as pasture, although Piper outyielded the other two. When used as green chop there was no significant difference between Piper and SX-11, and both significantly outyielded NK-300. These trials were grown in 12-inch rows and harvested throughout the season as each variety reached 24 inches in height as pasture or 50% late boot stage as green chop.
View details →Negative / Null Result ReportOpen accessMedicine
Azam Abed, Aliasghar Asghar Nezhad, Hamidreza Hatami · 2015 · Iranian Rehabilitation Journal
Objectives: The aim of current study was the evaluation and comparison of compatibility and marital satisfaction between handicapped couples and healthy ones. Methods: In this study, 50 handicapped couples and 50 healthy couples were examined with Enrich’s marital satisfaction questionnaire and Bell’s adjustment questionnaire. The data were analyzed, using SPSS 15, correlation tests and ANOVA. Results: The results showed that there was no significant difference between handicapped and healthy couples in compatibility and marital satisfaction. Discussion: It is concluded that people
View details →Negative / Null Result ReportOpen access
Ole B. Suhr, Stellan Mörner, Anders Holmgren et al. · 2011
Septal systolic strain measurements showed reduced longitudinal function but its localized nature failed to demonstrate radial disturbances in patients with pathologically thickened septum. No difference was found in systolic strain…
View details →Negative / Null Result ReportMedicine
Wu C, Zhu X, Dai Q et al. · 2026 · Chest
Case presentation A 74-year-old woman sought treatment with a 4-day history of high fever and rapidly progressive dyspnea. A 2-day course of ceftriaxone and betamethasone administered in an outpatient setting did not result in any clinical…
View details →Negative / Null Result ReportOpen accessDiseases of the digestive system. Gastroenterology
Mohamed Abdelkhalek, Ahmed Setit, Francesco Bianco et al. · 2018 · Annals of Coloproctology
Purpose Revolutions have occurred over the last 3 decades in the management of patients with colorectal cancer. Most advances were in rectal cancer surgery, especially after the introduction of the total mesorectal excision (TME) by Heald. However, no parallel advances regarding colon cancer surgeries have occurred. In 2009, Hohenberger introduced a new concept trying to translate the survival advantages of TME to patients with colon cancer. This relatively new concept of a complete mesocolic excision (CME) with central vascular ligation (CVL) in the management of patients with colon cancer re
View details →Negative / Null Result ReportOpen accessAnimal culture
RAVIKANTH JETTY, S SREEDHAR, CH VENKATA SESHAIAH2 et al. · 2025 · Indian Journal of Animal Sciences
The present research was conducted to study the effect of fan and foggers on Temperature Humidity Index (THI) and physiological responses in Nellore brown sheep during summer. Twenty ewes of age 3-5 years from sheep unit of Livestock Farm Complex of NTR college of Veterinary Sciences, Gannavaram were divided into 2 groups of each 10 ewes each in a completely randomized design on the basis of body weight. The animals in the group-I were considered as control whereas the animals in the group-II were equipped with fan and foggers for modification of microclimate in the shed. Data on temperature-h
View details →Negative / Null Result ReportOpen accessScience (General)
Chong Teng, Ling Li, Dan Su et al. · 2024 · Heliyon
Objective: To detect levofloxacin (LFX) and moxifloxacin (MFX) resistance among rifampicin-resistant tuberculosis (RR-TB) isolates, and predict the resistance level based on specific mutations in gyrA and gyrB genes. Methods: A total of 686 RR-TB isolates were collected from Chinese Drug Resistance Surveillance Program from 2013 to 2020. The minimum inhibitory concentrations (MICs) of 12 anti-TB drugs were acquired using the broth microdilution method, followed by whole genome sequencing (WGS) analysis. Results: Among the 686 RR isolates, the most prevalent resistance was to isoniazid (80.5 %)
View details →Negative / Null Result ReportOpen accessManagement. Industrial management
Majid Aligholizadeh, Mohammad Akbari, Fatemeh Zandian et al. · 2014 · مطالعات مدیریت راهبردی
The aim of Paper is to analyze and evaluate the performance of management in Tehran academic public libraries based on the model of EFQM that tries to identify the weak points and strong points of the management, plan for the improvement of strong points and resolve the weak points to get to a more competent and desirable situation in the society so that they can be able to improve their services and satisfy the needs of their members and customers more than ever. The methodology used to conduct this research is a survey and to collect the data a 72 item questionnaire of European Foundation fo
View details →Negative / Null Result ReportOpen accessDentistry
Nsar Muhyaddin Aziz · 2022 · Erbil Dental Journal
Background and objectives: Gutta percha solvents like chloroform and orange oil have different effects on physio-chemical properties like the microhardness of root dentine. Aim: Effects of sesame oil on the micro hardness of root dentin after using chloroform and orange oil as guttapercha solvents. Methods: Twenty three extracted single rooted both upper and lower premolars were used crown separated from the root from the cement enamel junction ,remaining roots longitudinally sectioned from buccolingual direction each piece of roots mounted in cold cure acrylic resin and dentin surface of the
View details →Negative / Null Result ReportOpen accessAnimal culture
A. Idris, E. Moors, C. Budnick et al. · 2011 · Animal
The relationship among parasitological parameters, abomasal size and body size measurements was investigated in lambs following an experimental infection with Haemonchus contortus. In total, 100 lambs from five different genotypes (German Merino (GM), Texel × GM, Suffolk × GM, German Blackhead Mutton × GM and Ile de France × GM) were experimentally infected with 5000 infective third stage larvae of H. contortus at the time of weaning at 12 weeks of age. Four and six weeks after infection, individual faecal samples were collected for estimation of faecal egg counts (FECs). Furthermore, wither h
View details →Negative / Null Result ReportOpen accessMedicine (General)
Omer Atis, Semsettin Sahin, Koksal Ceyhan et al. · 2019 · Eurasian Journal of Medicine
Abstract Objective: Coronary artery disease (CAD) is a multifactorial disease that is caused by various genetics and environmental factors. Genetically, predisposition is an important component for CAD. The candidate apolipoprotein E (apoE) gene is the most studied one. ApoE is composed of e2, e3, e4 alleles and E2/2, E2/3, E2/4, E3/3, E3/4, E4/4 genotypes. In this study, the relationship between CAD and apoE polymorphism and apoE level has been studied in Tokat region. Materials and Methods: The study population is composed of 100 CAD patients diagnosed by coronary angiography and 100 control
View details →Negative / Null Result ReportOpen accessDentistry
Gökay Üstdal, Ayça Üstdal Güney, Eyüp Burak Küçük · 2024 · Current Research in Dental Sciences
Objective: To evaluate the shear bond strength (SBS) and the adhesive remnant index (ARI) of different traditional orthodontic adhesive systems and newly developed pre-coated adhesive systems.Methods: A total of 50 human maxillary premolars were bonded with Clarity advanced ceramic brackets using APC™ Flash-Free, APC™ PLUS, Transbond™ XT Light Cure, Opal® Bond™MV and, Blugloo™ adhesives. All samples underwent thermo-cycling. The SBS was determined using a testometric machine. A stereomicroscope was used to evaluate the adhesive remnant on debonded enamel surface. Differences among the adhesive
View details →Negative / Null Result ReportOpen accessSpecial aspects of education
Richard Tsan-Jui Cheng · 2016 · International Review of Research in Open and Distributed Learning
Scores of studies have established that when learning online, students must be equipped with different sets of strategies and skills than in a physical classroom setting (Anderson, 2003; Broadbent & Poon, 2015; Coiro, 2007; Leu et al., 2007; Michinov, Brunot, Le Bohec, Juhel, & Delaval, 2011; Salmon, 2013). The present study, by virtue of exploring foreign language learners’ online reading experience, aimed to identify the reading strategies that learners would use when engaged in online reading activities in the target foreign languages. Thirty-two foreign language learners whose native langu
View details →Negative / Null Result ReportOpen accessMedicine
Dilek Agircan, Ozlem Ethemoglu, Mustafa Calik et al. · 2024 · Haseki Tıp Bülteni
Aim: Previous studies have shown that the cerebrospinal fluid (CSF) protein level correlates with the number of demyelination criteria in electromyography in adult patients with Guillain-Barré syndrome (GBS), which is a potentially life-threatening postinfectious disease. We aimed to assess the association between CSF protein level, inflammatory markers, and electrophysiological values in the diagnosis of pediatric patients to act quickly in treating GBS. Methods: In this cross-sectional study, thirty-nine children with GBS were retrospectively analyzed from the medical records of patients who
View details →Negative / Null Result ReportOpen accessMedicine
Hessling, Martin, Gierke, Anna-Maria, Sicks, Ben et al. · 2022 · GMS Hygiene and Infection Control
Background: The measures implemented against the coronavirus pandemic also led to a sharp decline in influenza infections in the 2020/2021 flu season. In the meantime, however, the number of influenza infections has risen again; it is known from history that influenza viruses can also trigger severe pandemics. Therefore, we investigated the efficacy of ultraviolet radiation in the spectral range of 200–40 for inactivating influenza viruses.Materials and methods: The scientific literature was searched for published ultraviolet (UV) irradiation experiments with influenza viruses and the results
View details →Negative / Null Result ReportOpen accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens
Lucia Li, Haiyue Wu, Yibo Chen et al. · 2025 · Cancer Reports
ABSTRACT Background and Aims Human papillomavirus (HPV) vaccines have been available in China for only 8 years, and routine HPV testing is not recommended prior to vaccination. Therefore, evaluation of HPV vaccine effectiveness and the impact of pre‐vaccination HPV infection status on vaccine protective effect in Chinese women is warranted. Methods From June 2022 to June 2023, women aged 18 to 50 years without a history of cervical or uterine excision were recruited from three medical institutions. Baseline characteristics were compared between vaccinated and unvaccinated participants, with in
View details →Negative / Null Result ReportOpen accessComputer Science
J. E. Ottoni, A. P. Baeta Scarpelli, Marcos Sampaio et al. · 2006 · arXiv
We apply Implicit regularization in the calculation of the one-loop graviton and gravitino corrections to the anomalous magnetic moment of the lepton in unbroken supergravity, which is known to be an important test for any regularization method. We find a null result as it is expected from supersymmetry. We compare our results with the ones obtained by using Differential Regularization and Dimensional Reduction, which are known to preserve supersymmetry at one-loop order.
View details →Negative / Null Result ReportOpen accessComputer Science
Q. Riffard, F. Mayet, G. Bélanger et al. · 2016 · arXiv
The comparison of the results of direct detection of Dark Matter, obtained with various target nuclei, requires model-dependent, or even arbitrary, assumptions. Indeed, to draw conclusions either the spin-dependent (SD) or the spin-independent (SI) interaction has to be neglected. In the light of the null results from supersymmetry searches at the LHC, the squark sector is pushed to high masses. We show that for a squark sector at the TeV scale, the framework used to extract contraints from direct detection searches can be redefined as the number of free parameters is reduced. Moreover, the co
View details →Negative / Null Result ReportOpen accessPhysics
Christopher Savage, Paolo Gondolo, Katherine Freese · 2004 · arXiv
We examine whether the annual modulation found by the DAMA dark matter experiment can be explained by Weakly Interacting Massive Particles (WIMPs), in light of new null results from other experiments. CDMS II has already ruled out most WIMP-nucleus spin-independent couplings as an explanation for DAMA data. Hence we here focus on spin-dependent (axial vector; SD) couplings of WIMPs to nuclei. We expand upon previous work by (i) considering the general case of coupling to both protons and neutrons and (ii) incorporating bounds from all existing experiments. We note the surprising fact that CMDS
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