40,339 results match your criteria measurement properties


Analyzing the causes of method-to-method variability among Rubisco kinetic traits: from the first to the current measurements.

J Exp Bot 2021 Jul 30. Epub 2021 Jul 30.

Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Palma, Balearic Islands, Spain.

Due to the importance of Rubisco in the Biosphere, its kinetic parameters have been measured by different methodologies in a large number of studies over the last 60 years. These parameters are essential to characterize the natural diversity in the catalytic properties of the enzyme and they are also required for photosynthesis and cross scale crop modeling. The present compilation of Rubisco kinetic parameters in model species revealed a wide intraspecific laboratory-to-laboratory variability, which was partially solved by making corrections to account for differences in the assay buffer composition and in the acidity constant of dissolved CO2, as well as for differences in the CO2 and O2 solubilities. Read More

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Polymer-based immobilized FeO-TiO/PVP catalyst preparation method and the degradation of triclosan in treated greywater effluent by solar photocatalysis.

J Environ Manage 2021 Jul 26;296:113305. Epub 2021 Jul 26.

Department of Civil Engineering, National Institute of Technology Karnataka, Surathkal, 575025, India. Electronic address:

The present study involves a novel protocol to develop a ternary composite catalyst for an effective post-treatment technique for greywater. The ternary film of FeO-TiO/polyvinyl pyrrolidine (PVP) is coated on a glass tube using spray coating with annealing at 320 °C. The structure, thermal, microstructure, and surface properties of the coated film are characterized by X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and Thermo Gravimetric Analysis (TGA). Read More

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Quantifying and Controlling Entanglement in the Quantum Magnet Cs_{2}CoCl_{4}.

Phys Rev Lett 2021 Jul;127(3):037201

Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

The lack of methods to experimentally detect and quantify entanglement in quantum matter impedes our ability to identify materials hosting highly entangled phases, such as quantum spin liquids. We thus investigate the feasibility of using inelastic neutron scattering (INS) to implement a model-independent measurement protocol for entanglement based on three entanglement witnesses: one-tangle, two-tangle, and quantum Fisher information (QFI). We perform high-resolution INS measurements on Cs_{2}CoCl_{4}, a close realization of the S=1/2 transverse-field XXZ spin chain, where we can control entanglement using the magnetic field, and compare with density-matrix renormalization group calculations for validation. Read More

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Single-Atom Verification of the Noise-Resilient and Fast Characteristics of Universal Nonadiabatic Noncyclic Geometric Quantum Gates.

Phys Rev Lett 2021 Jul;127(3):030502

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.

Quantum gates induced by geometric phases are intrinsically robust against noise due to the global properties of their evolution paths. Compared to conventional nonadiabatic geometric quantum computation, the recently proposed nonadiabatic noncyclic geometric quantum computation (NNGQC) works in a faster fashion while still remaining the robust feature of the geometric operations. Here, we experimentally implement the NNGQC in a single trapped ultracold ^{40}Ca^{+} ion to verify the noise-resilient and fast feature. Read More

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Direct Measurement of Topological Properties of an Exceptional Parabola.

Phys Rev Lett 2021 Jul;127(3):034301

Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.

Non-Hermitian systems can produce branch singularities known as exceptional points (EPs). Different from singularities in Hermitian systems, the topological properties of an EP can involve either the winding of eigenvalues that produces a discriminant number (DN) or the eigenvector holonomy that generates a Berry phase. The multiplicity of topological invariants also makes non-Hermitian topology richer than its Hermitian counterpart. Read More

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Psychometric properties of the Chinese version of the Courtauld Emotional Control Scale in women newly diagnosed with breast cancer.

Qual Life Res 2021 Jul 30. Epub 2021 Jul 30.

Medical Psychological Center, The Second Xiangya Hospital, Central South University, Renmin Middle Road 139#, Furong District, Changsha, 410011, Hunan, China.

Purpose: Emotional control, the attempt to suppress the expression of negative effects, is an essential factor in the prevalence of psychological distress in women with breast cancer. The Courtauld Emotional Control Scale (CECS) is a commonly used self-report tool for assessing emotional suppression in both clinical and general groups. This study aimed to validate the Chinese version of the Courtauld Emotional Control Scale (CECS) in women newly diagnosed with breast cancer. Read More

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Validity arguments for patient-reported outcomes: justifying the intended interpretation and use of data.

J Patient Rep Outcomes 2021 Jul 30;5(1):64. Epub 2021 Jul 30.

Swinburne University of Technology, Centre for Global Health and Equity, School of Health Sciences, PO Box 218, Hawthorn, Melbourne, Victoria, 3122, Australia.

Background: Contrary to common usage in the health sciences, the term "valid" refers not to the properties of a measurement instrument but to the extent to which data-derived inferences are appropriate, meaningful, and useful for intended decision making. The aim of this study was to determine how validity testing theory (the Standards for Educational and Psychological Testing) and methodology (Kane's argument-based approach to validation) from education and psychology can be applied to validation practices for patient-reported outcomes that are measured by instruments that assess theoretical constructs in health.

Methods: The Health Literacy Questionnaire (HLQ) was used as an example of a theory-based self-report assessment for the purposes of this study. Read More

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Measurement properties of patient-reported outcome measures (PROMs) in hyperhidrosis: a systematic review.

Qual Life Res 2021 Jul 30. Epub 2021 Jul 30.

Institute of Social Medicine and Health Systems Research, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany.

Purpose: To critically appraise, compare and summarize the quality of all existing PROMs that have been validated in hyperhidrosis to at least some extend by applying the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) methodology. Thereby, we aim to give a recommendation for the use of PROMs in future clinical trials in hyperhidrosis.

Methods: We considered studies evaluating, describing or comparing measurement properties of PROMs as eligible. Read More

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Monitoring Severity of Respiratory Syncytial Virus (RSV) in Infants and Young Children Using the Pediatric RSV Electronic Severity and Outcome Rating System (PRESORS): Results of Initial Quantitative Validation.

Patient Relat Outcome Meas 2021 23;12:247-265. Epub 2021 Jul 23.

Janssen Global Services LLC, High Wycombe, UK.

Purpose: PRESORS ClinRO completed by clinicians and ObsRO completed by caregivers were developed to characterize the clinical course of respiratory syncytial virus (RSV) infection. This study describes preliminary analysis of PRESORS' measurement properties using clinical trial data.

Patients And Methods: PRESORS ClinRO and ObsRO data were collected in a 28-day randomized, double-blind, Phase 1b trial of JNJ-53718678 or placebo in infants and children ≤24 months of age treated for RSV infection in hospitals. Read More

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Reliability and validity of the international standards for neurological classification of spinal cord injury in patients with non-traumatic spinal cord lesions.

Spinal Cord 2021 Jul 29. Epub 2021 Jul 29.

Spinal Cord Unit, IRCCS Fondazione Santa Lucia, Rome, Italy.

Study Design: Prospective, observational study.

Objectives: The International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) represent the gold standard for the assessment of patients with spinal cord injury (SCI) and their measurement properties have been evaluated in patients with traumatic lesions. Albeit the ISNCSCI are widely used also for the assessment and prognosis of patients with non-traumatic SCI, a validation of this grading system in this sample has never been performed. Read More

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Linked Weyl surfaces and Weyl arcs in photonic metamaterials.

Science 2021 07;373(6554):572-576

Department of Physics, University of Hong Kong, Hong Kong, China.

Generalization of the concept of band topology from lower-dimensional to higher-dimensional ( > 3) physical systems is expected to introduce new bulk and boundary topological effects. However, theoretically predicted topological singularities in five-dimensional systems-Weyl surfaces and Yang monopoles-have either not been demonstrated in realistic physical systems or are limited to purely synthetic dimensions. We constructed a system possessing Yang monopoles and Weyl surfaces based on metamaterials with engineered electromagnetic properties, leading to the observation of several intriguing bulk and surface phenomena, such as linking of Weyl surfaces and surface Weyl arcs, via selected three-dimensional subspaces. Read More

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The empathy questionnaire for children and adolescents (EmQue-CA) in Chinese: Psychometric properties and measurement invariance.

Asian J Psychiatr 2021 Jul 16;63:102775. Epub 2021 Jul 16.

Department of Psychology, University of Macau, Taipa, Macau SAR, 100875, China. Electronic address:

The current study aimed to evaluate the reliability and validity of the Chinese version of the EmQue-CA, as well as the measurement invariance across gender. A sample of 1107 students (498 boys and 609 girls) enrolled in fourth grade to twelfth grade (M = 13.29; SD = 2. Read More

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Evaluation of Psychometric Properties of the Persian Version of Brief Male Sexual Function Inventory: A Cross-Sectional Study.

Sex Med 2021 Jul 26;9(5):100409. Epub 2021 Jul 26.

Non-Communicable Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran.

Introduction: Male sexual dysfunction is a common problem, and there are many self-report questionnaires for measuring sexual function among men; however, the Brief Male Sexual Function Inventory (BSFI) is a tool that has 5 subscales, which is more complete than others. a validated self-report questionnaire, in the local language with modest expressions is required for men.

Aim: To determine the validity and reliability of the Persian version of the BSFI among men. Read More

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Mathematical and computational modeling for the determination of optical parameters of breast cancer cell.

Electromagn Biol Med 2021 Jul 29:1-12. Epub 2021 Jul 29.

Department of Cardiology, Ibrahim Cardiac Hospital and Research Institute, Dhaka, Bangladesh.

This study enumerates the quantitative measurement of optical parameters used in several diagnostic procedures for malignant tissue. Optical diagnosis is proposed due to its non-invasive and non-destructive nature. This paper recapitulates Fresnel equation (polarization independent) to determine the characteristic critical angle of malignant tissue. Read More

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Motives to Have Sex: Measurement and Correlates With Sociodemographic, Sexual Life, and Psychosexual Characteristics.

Front Psychol 2021 12;12:645493. Epub 2021 Jul 12.

Department of Psychology and Sociology, Universidad de Zaragoza, Zaragoza, Spain.

Knowledge of diverse sexual motivations can have profound implications for our comprehension of the causes, correlations, and consequences of sexual behavior. This study had two objectives: on the one hand, to determine the different motives why young Spanish university students have sex and their relationship with different sociodemographic and psychosexual variables and sexual behavior; on the other hand, to review and improve the psychometric properties of the Sexual Motivations Scale and validate it in Spanish. Participants were 805 university students of both sexes (78% women, 74% heterosexuals), aged between 18 and 26 years ( = 20. Read More

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Psychometric properties of the ethical conflict in nursing questionnaire critical care version among Chinese nurses: a cross-sectional study.

BMC Nurs 2021 Jul 28;20(1):133. Epub 2021 Jul 28.

The Second Affiliated Hospital Zhejiang University School of Medicine (SAHZU), No.88 Jiefang road, Shangcheng District, Hangzhou, 310009, Zhejiang Province, China.

Background: Ethical conflicts are common in the critical care setting, and have compromised job satisfaction and nursing care quality. Using reliable and valid instruments to measure the ethical conflict is essential. This study aimed to translate the Ethical Conflict in Nursing Questionnaire - Critical Care Version into Chinese and determine the reliability and validity in the population of Chinese nurses. Read More

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Factor structure and sex invariance of the temporal experience of pleasure scale (TEPS) in Chinese university students and clinical population.

BMC Psychiatry 2021 Jul 28;21(1):378. Epub 2021 Jul 28.

Medical Psychological Center, the Second Xiangya Hospital,Central South University, Changsha, 410011, China.

Background: A motivation dimension of the core psychiatric symptom anhedonia additional has been suggested. The Temporal Experience of Pleasure Scale (TEPS) has been reported to assess anticipatory and consummatory pleasure separately in multiple factor-structure models. This study explored the factor structure of a Chinese version of the 18-item TEPS and further explored the measurement invariance of the TEPS across sex and clinical status (non-clinical, psychiatric). Read More

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A generic outcome assessment of mobility capacity in neurorehabilitation: measurement properties of the de Morton Mobility Index.

BMC Neurol 2021 Jul 28;21(1):298. Epub 2021 Jul 28.

Department of Applied Health Sciences, Division of Physiotherapy, Hochschule für Gesundheit (University of Applied Sciences), Gesundheitscampus 6-8, 44801, Bochum, Germany.

Background: Mobility capacity is a key outcome domain in neurorehabilitation. The de Morton Mobility Index (DEMMI), an established and generic outcome assessment of mobility capacity in older patients, is promising for use in neurorehabilitation. The aim of this study was to examine the measurement properties of the DEMMI in rehabilitation inpatients with neurological conditions. Read More

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HE4 Predicts Progressive Fibrosis and Cardiovascular Events in Patients With Dilated Cardiomyopathy.

J Am Heart Assoc 2021 Jul 29:e021069. Epub 2021 Jul 29.

Department of Cardiovascular Medicine Faculty of Life Sciences Kumamoto University Kumamoto Japan.

Background Cardiac fibrosis plays a crucial role in the pathogenesis of dilated cardiomyopathy (DCM). HE4 (human epididymis protein 4) is a secretory protein expressed in activated fibroblasts that exacerbates tissue fibrosis. In the present study, we investigated the clinical utility of HE4 measurement in patients with DCM and its pathophysiological role in preclinical experiments in vivo and in vitro. Read More

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Evaluation of reliability of face scanning using a new depth camera.

Int J Esthet Dent 2021 Aug;16(3):324-337

Aim: 3D face impression techniques have been defined to eliminate the disadvantages of conventional impression methods. The aim of the present study was to evaluate and compare the accuracy of a digital technique using a novel 3D camera in relation to a conventional impression technique.

Materials And Methods: Ten prefabricated polystyrene head molds each containing 10 predetermined anatomical landmarks were used. Read More

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Validity of the Utrecht scale for evaluation of rehabilitation-participation restrictions scale in a hospital-based stroke population 3 months after stroke.

Top Stroke Rehabil 2021 Jul 27:1-11. Epub 2021 Jul 27.

Center of Excellence for Rehabilitation Medicine, UMC Utrecht Brain Center, University Medical Center Utrecht and De Hoogstraat Rehabilitation, Utrecht, The Netherlands.

The Utrecht Scale for Evaluation of Rehabilitation-Participation Restrictions scale (USER--R) is a promising patient-reported outcome measure, but has currently not been validated in a hospital-based stroke population. To examine psychometric properties of the USER--R in a hospital-based stroke population 3 months after stroke onset. Cross-sectional study including 359 individuals with stroke recruited through 6 Dutch hospitals. Read More

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Questionnaires used in complex trauma intervention evaluations and consideration of their utility for autistic adults with mild intellectual disability: A systematic review.

Res Dev Disabil 2021 Jul 24;117:104039. Epub 2021 Jul 24.

Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, NE1 4LP, United Kingdom.

Introduction: Research suggests some trauma symptoms e.g. avoidance are difficult to recognise in autistic people with intellectual disability while arousal/emotional and interpersonal difficulties may be useful signals. Read More

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Thermoelectrics in ice slabs: charge dynamics and thermovoltages.

Phys Chem Chem Phys 2021 Jul 27. Epub 2021 Jul 27.

Department of Mechanical Engineering, Virginia Tech, Blaksburg, VA 24061, USA.

Thermoelectric effects of ice play an important role in many natural and engineering phenomena. We investigate, numerically and analytically, the electrification of finite-thickness ice slabs due to an imposed temperature difference across them. When exposed to a temperature gradient, thermoelectrification involves a fast initial stage dominated by Bjerrum defects and a subsequent slow stage driven by ionic defects. Read More

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Influence of road salt thawing peaks on the inflow composition and activated sludge properties in municipal wastewater treatment.

Water Sci Technol 2021 Jul;84(2):314-322

Institute for Water Quality and Resource Management, TU Wien, Karlsplatz 13/226, 1040 Vienna, Austria.

Operational data over 2 years from three large Austrian wastewater treatment plants (WWTPs) with design capacities of 4 million, 950,000 and 110,000 population equivalent (PE) were examined. Salt peaks, due to thawing road salt were detected and quantified by electrical conductivity, temperature and chloride measurement in the inflow of the WWTPs. Daily NaCl inflow loads up to 1,147 t/d and PE-specific loads of 0. Read More

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Are patients willing to take a more active role? Questionnaires to measure patients' willingness to be empowered.

Patient Educ Couns 2021 Jul 7. Epub 2021 Jul 7.

Department of Surgery, SSORG - Scandinavian Surgical Outcomes Research Group, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Region Västra Götaland, Sahlgrenska University Hospital/Östra, Department of Surgery, Gothenburg, Sweden.

Objective: One crucial prerequisite for increased patient empowerment is the willingness among patients to take a more active role. The aim of this study was to develop questionnaires for measuring a patient's willingness to be empowered in general and by using e-health.

Methods: The study was based on a random sample from an online panel. Read More

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The Group Nurturance Inventory - initial psychometric evaluation using Rasch and factor analysis.

BMC Public Health 2021 Jul 26;21(1):1454. Epub 2021 Jul 26.

Oregon Research Institute, Eugene, USA.

Background: This paper describes the development and psychometric evaluation of a behavioral assessment instrument primarily intended for use with workgroups in any type of organization. The instrument was developed based on the Nurturing Environments framework which describes four domains important for health, well-being, and productivity; minimizing toxic social interactions, teaching and reinforcing prosocial behaviors, limiting opportunities for problem behaviors, and promoting psychological flexibility. The instrument is freely available to use and adapt under a CC-BY license and intended as a tool that is easy for any group to use and interpret to identify key behaviors to improve their psychosocial work environment. Read More

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Adaptation of the Communities That Care Youth Survey for use in Brazil: A pilot study.

Health Promot Int 2021 Jul 23. Epub 2021 Jul 23.

Social Development Research Group, School of Social Work, University of Washington, 9725 3rd Ave NE, Suite 401, Seattle, WA 98115, US.

Substance use and violence are serious problems affecting Brazilian youth, prompting local authorities to invest in adapting and implementing evidence-based prevention programs developed abroad. To ensure that interventions are effective, valid and reliable measures of risk factors for substance use and violence are needed. We conducted a pilot examination of the measurement properties of risk factors in the Communities That Care Youth Survey (CTCYS), a school-based survey developed in the United States. Read More

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mHealth technologies used to capture walking and arm use behavior in adult stroke survivors: a scoping review beyond measurement properties.

Disabil Rehabil 2021 Jul 23:1-13. Epub 2021 Jul 23.

Biokinesiology and Physical Therapy, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA.

Purpose: We aimed to provide a critical review of measurement properties of mHealth technologies used for stroke survivors to measure the amount and intensity of functional skills, and to identify facilitators and barriers toward adoption in research and clinical practice.

Materials And Methods: Using Arksey and O'Malley's framework, two independent reviewers determined eligibility and performed data extraction. We conducted an online consultation survey exercise with 37 experts. Read More

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A Reliability Generalization Meta-Analysis of 17 Patient-Reported Outcome Measures for Positive Psychosocial Constructs in Children, Adolescents, and Young Adults with Cancer.

J Adolesc Young Adult Oncol 2021 Jul 23. Epub 2021 Jul 23.

Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA.

Children, adolescents, and young adults (AYAs) with cancer are a special population who are subjected to a number of unique challenges, stressors, and barriers to high-quality psychological care. In a recent systematic review of measurement properties, we found that 5 of 18 identified patient-reported outcome measures (PROMs) had sufficient psychometric properties to justify their use. A next step is to analyze the reliability of these scale scores in a reliability-generalization meta-analysis. Read More

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Ultrasound Acoustic Measurement of the Lithium-Ion Battery Electrode Drying Process.

ACS Appl Mater Interfaces 2021 Jul 23. Epub 2021 Jul 23.

Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, London WC1E 7JE, U.K.

The electrode drying process is a crucial step in the manufacturing of lithium-ion batteries and can significantly affect the performance of an electrode once stacked in a cell. High drying rates may induce binder migration, which is largely governed by the temperature. Additionally, elevated drying rates will result in a heterogeneous distribution of the soluble and dispersed binder throughout the electrode, potentially accumulating at the surface. Read More

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