134,602 results match your criteria passive


Detection of anticancer drugs in wastewater effluents: Grab versus passive sampling.

Sci Total Environ 2021 Apr 30;786:147477. Epub 2021 Apr 30.

iBET - Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal; Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal. Electronic address:

The occurrence of six anticancer drugs was evaluated in wastewater effluents. Several grab samples from wastewater effluent were collected throughout a year. Capecitabine, cyclophosphamide and ifosfamide were detected at concentrations ranging from 8 to 46 ng·L. Read More

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Social functioning in schizophrenia: Comparing laboratory-based assessment with real-world measures.

J Psychiatr Res 2021 Apr 30;138:500-506. Epub 2021 Apr 30.

Department of Psychology, Indiana University - Purdue University Indianapolis, LD 124, 402 N Blackford St, Indianapolis, IN 46202, USA.

Researchers have measured social functioning in schizophrenia using many different strategies. Recent technological advances have made it possible to passively measure behaviors in real-world social situations-allowing for more objective, ecologically valid assessments. Yet, research testing the convergent validity among real-world and laboratory-based social functioning assessment is sparse. Read More

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Tetrafluoroterephthalonitrile-crosslinked β-cyclodextrin polymer as a binding agent of diffusive gradients in thin-films for sampling endocrine disrupting chemicals in water.

Chemosphere 2021 May 3;280:130774. Epub 2021 May 3.

State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.

β-Cyclodextrin (β-CD) is an inexpensive and reproducible material derived from corn starch. It is possible that tetrafluoroterephthalonitrile-crosslinked β-cyclodextrin polymer (TFN-CD), a cheap but efficient adsorbent, could be a suitable binding agent for use in the passive sampling technique, diffusive gradients in thin-films (DGT). Herein, the TFN-CD binding gel was prepared and then evaluated as the binding phase of DGT to sample six endocrine disrupting chemicals (EDCs) in water. Read More

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Novel Japanese encephalitis virus NS1-based vaccine: Truncated NS1 fused with E. coli heat labile enterotoxin B subunit.

EBioMedicine 2021 May 7;67:103353. Epub 2021 May 7.

Institute of Pathogenic Microorganism and College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China. Electronic address:

Background: Current vaccines against Japanese encephalitis virus (JEV) of flaviviruses have some disadvantages, such as the risk of virulent reversion. Non-structural protein NS1 is conserved among flaviviruses and confers immune protection without the risk of antibody-dependent enhancement (ADE). Therefore, NS1 has become a promising vaccine candidate against flaviviruses. Read More

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Relevance of Antibodies against the Chicken Anaemia Virus.

Dev Comp Immunol 2021 May 7:104112. Epub 2021 May 7.

Imunova Análises Biológicas, Curitiba, 80215-182, Brazil; Universidade Federal Do Paraná, Setor de Ciências Biológicas UFPR, Curitiba, 81531-980, Brazil. Electronic address:

Chicken Infectious Anaemia (CIA) Virus (CAV) inhibits the function of multiple immune compartments. Mortality due to clinical infection is controlled in broilers by passive immunization derived from vaccinated breeders. Therefore, serological tests are often used in chicks to determine maternally-derived antibodies (MDA). Read More

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Grape seed extract effects on hippocampal neurogenesis, synaptogenesis and dark neurons production in old mice. Can this extract improve learning and memory in aged animals?

Nutr Neurosci 2021 May 10:1-11. Epub 2021 May 10.

Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

Background: During the elderly, hippocampal neurogenesis and synaptogenesis reduce and dark neurons (DNs) increase, leading to cognitive impairment. It is believed that natural products can protect the neural cells and system by protecting from damages or promoting regeneration. Therefore, the effects of grape seed extract (GSE) on the hippocampus of aged mice were investigated in this study. Read More

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Investigating the effect of a passive trunk exoskeleton on local discomfort, perceived effort and spatial distribution of back muscles activity.

Ergonomics 2021 May 10:1-23. Epub 2021 May 10.

Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Torino, Italy - ICxT Innovation Center, University of Torino.

This study aimed at determining the effect of a passive exoskeleton on local perceived discomfort, perceived effort and low back muscles' activity. Thirteen volunteers performed two simulated working tasks with and without the exoskeleton. In the static task, the exoskeleton decreased the lumbar perceived discomfort, the perceived effort and the level of low back muscles' activity (∼10%) while increasing discomfort in the chest and feet. Read More

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Robust Hierarchical Porous PTFE Film Fabricated via Femtosecond Laser for Self-Cleaning Passive Cooling.

Nano Lett 2021 May 10. Epub 2021 May 10.

The State Key Laboratory of High Performance and Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, P.R. China.

Passive cooling materials that spontaneously cool an object are promising choices for mitigating the global energy crisis. However, these cooling effects are usually weakened or lost when dust contaminates the surface structure, greatly restricting their applications. In this work, a robust hierarchical porous polytetrafluoroethylene (PTFE) film with coral-like micro/nanostructures is generated by a facile and efficient femtosecond laser ablation technique. Read More

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Surgeon-Therapist Communication Must Be Improved in Rotator Cuff Repair Rehabilitation: An Electronic Survey of Physical Therapists on Postoperative Rehabilitation Protocols and Communication with Treating Surgeons.

Perm J 2021 May;25

Kerlan-Jobe Orthopaedic Clinic, White Memorial Medical Center, Cedars-Sinai Medical Center, Keck School of Medicine, Los Angeles, CA.

Background: There is no consensus on postoperative rotator cuff repair protocols in orthopedic or physical therapy literature. Despite surgical management, the frequency of rotator cuff retears continues to be high.

Objectives: This study is designed to investigate the current concepts of postoperative rehabilitation and to evaluate the state of communication between referring surgeons and treating physical therapists. Read More

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Active Microneedle Administration of Plant Virus Nanoparticles for Cancer Vaccination Improves Immunotherapeutic Efficacy.

ACS Appl Nano Mater 2020 Aug 7;3(8):8037-8051. Epub 2020 Aug 7.

Department of Radiology, UC San Diego Health, University of California, San Diego, La Jolla California 92093, United States.

The solid tumor microenvironment (TME) poses a significant structural and biochemical barrier to immunotherapeutic agents. To address the limitations of tumor penetration and distribution, and to enhance antitumor efficacy of immunotherapeutics, we present here an autonomous active microneedle (MN) system for the direct intratumoral (IT) delivery of a potent immunoadjuvant, cowpea mosaic virus nanoparticles (CPMV) . In this active delivery system, magnesium (Mg) microparticles embedded into active MNs react with the interstitial fluid in the TME, generating a propulsive force to drive the nanoparticle payload into the tumor. Read More

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Wireless Qi-powered, Multinodal and Multisensory Body Area Network for Mobile Health.

IEEE Internet Things J 2021 May 26;8(9):7600-7609. Epub 2020 Nov 26.

Department of Electrical Engineering and Computer Science, University of California Irvine, Irvine, CA, USA - 92697.

Wireless, battery-free Body Area Networks (BAN) enable reliable long-term health monitoring with minimal intervention, and have the potential to transform patient care via mobile health monitoring. Current approaches for achieving such battery-free networks are limited in the number, capability, and positioning of sensing nodes-this is related to constraints in power supply, data rate, and working distance requirements between the wireless power source and sensing nodes. Here, we investigate a Qi-based, near-field power transfer scheme that can effectively drive wireless, battery-free, multi-node and multi-sensor BAN over long distances. Read More

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Early Passive Leg Movement Prevents Against the Development of Heart Failure With Preserved Ejection Fraction in Rats.

Front Cardiovasc Med 2021 21;8:655009. Epub 2021 Apr 21.

Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.

Exercising was reported by several studies to bring great benefits to heart failure with preserved ejection fraction (HFpEF), which reduced the hospitalization and the mortality of heart failure. However, the underlying mechanism of exercising on HFpEF remains unclear. In the present study, we designed and constructed a device that can perform early passive leg movement (ePLM) in rats and further observed whether treatment of ePLM exerts protective effects on HFpEF of rats. Read More

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Flexibility Effects of a Flapping Mechanism Inspired by Insect Musculoskeletal System on Flight Performance.

Front Bioeng Biotechnol 2021 22;9:612183. Epub 2021 Apr 22.

Graduate School of Engineering, Chiba University, Chiba, Japan.

Flying animals such as insects display great flight performances with high stability and maneuverability even under unpredictable disturbances in natural and man-made environments. Unlike man-made mechanical systems like a drone, insects can achieve various flapping motions through their flexible musculoskeletal systems. However, it remains poorly understood whether flexibility affects flight performances or not. Read More

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The Psychological Status of General Population in Hubei Province During the COVID-19 Outbreak: A Cross-Sectional Survey Study.

Front Public Health 2021 22;9:622762. Epub 2021 Apr 22.

Medical Imaging Center, First Affiliated Hospital of Jinan University, Guangzhou, China.

The current outbreak of the novel coronavirus disease 2019 (COVID-19), originating from Wuhan (Hubei, China), has rapidly spread across China and several other countries. During the outbreak of COVID-19, mental health of the general population in Hubei province may be affected. This study aimed to assess the psychological status and associated risk factors of the general population in Hubei province during the COVID-19 outbreak. Read More

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Asymmetric Influence of Vocalic Context on Mandarin Sibilants: Evidence From ERP Studies.

Front Hum Neurosci 2021 22;15:617318. Epub 2021 Apr 22.

Faculty of Linguistics, Philology and Phonetics, University of Oxford, Oxford, United Kingdom.

In the present study, we examine the interactive effect of vowels on Mandarin fricative sibilants using a passive oddball paradigm to determine whether the HEIGHT features of vowels can spread on the surface and influence preceding consonants with unspecified features. The stimuli are two pairs of Mandarin words ([sa] ∼ [ʂa] and [su] ∼ [ʂu]) contrasting in vowel HEIGHT ([LOW] vs. [HIGH]). Read More

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Effect of smoking on periodontal health and validation of self-reported smoking status with serum cotinine levels.

Acta Odontol Scand 2021 May 8:1-9. Epub 2021 May 8.

Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.

Objective: To investigate whether self-reported smoking and serum cotinine levels associate with periodontal pocket development and to determine the accuracy of self-reported smoking using serum cotinine.

Materials And Methods: This 4-year prospective cohort study included data from 294 dentate adults, aged ≥30 years, who participated in both the Health 2000 Survey and the Follow-up Study of Finnish Adults' Oral Health. Subjectively reported smoking status (daily smokers  = 62, occasional smokers  = 12, quitters  = 49, and never-smokers  = 171), serum cotinine levels, demographic factors, education level, dental behaviours and medical history were collected at baseline. Read More

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The hemostatic mechanism of "Treated the Spleen" therapy on immune thrombocytopenia based on the characteristics of vasoactive factors.

Ann Palliat Med 2021 Apr;10(4):4612-4622

Department of Hematology, Dongfang Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China.

Background: To explore the effect mechanism of "treat the spleen" therapy on immune thrombocytopenia (ITP) based on the characteristics of vasoactive factors.

Methods: The ITP mice model was established by passive immunomodeling. 120 successfully modeled BALB/c mice were randomly divided into 6 groups: normal group, model group, prednisone group, Guipi Decoction group, Jianpi Yiqi group, and Jianpi Shexue group. Read More

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Long-Term Administration of Metformin Ameliorates Age-Dependent Oxidative Stress and Cognitive Function in Rats.

Behav Brain Res 2021 May 6:113343. Epub 2021 May 6.

Department of Anatomy, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran; Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Electronic address:

Background: Aging is an inevitable physiological process, associated with a decline in cognitive function. Recently, metformin, as the first-line treatment for type II diabetes, has been shown to increase the life expectancy of diabetic patients. Therefore, researchers are paying increasing attention to its anti-aging properties. Read More

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Implementation strategies for passive respiratory syncytial virus immunisation.

Authors:
Charles J Sande

Lancet Infect Dis 2021 May 6. Epub 2021 May 6.

KEMRI-Wellcome Trust Research Programme, Kilifi 80108, Kenya. Electronic address:

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Association between prenatal phthalate exposure and anthropometric measures of newborns in a sample of Iranian population.

Environ Sci Pollut Res Int 2021 May 9. Epub 2021 May 9.

Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.

Phthalates or phthalic acid esters (PAEs) are a group of compounds which they can be entered into the human body through the various pathways. The aim of this study was to examine associations between prenatal phthalates exposure with anthropometric measures of neonates. Urine samples were obtained from 121 Iranian pregnant women at their first trimester of pregnancy, and the levels of monobutyl phthalate (MBP), mono-benzyl phthalate (MBzP), mono-2-ethylhexyl phthalate (MEHP), and mono (2-ethyl-5hydroxyhexyl) phthalate (MEHHP) metabolites were determined by gas chromatography mass spectrometry (GC/MS). Read More

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Radon Concentrations in a Nuclear Reactor Center in Brazil.

Health Phys 2021 May 7. Epub 2021 May 7.

Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN-SP), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP, Brazil Universidade Federal de Alfenas (UNIFAL-MG), Rodovia José Aurélio Vilela, 11999, 37715-400 Poços de Caldas, MG, Brazil.

Abstract: Radiation workers are normally exposed to doses resulting from their day-to-day activities. Besides that, background radiation, such as radon, can contribute to the exposure rates. The radionuclide 222Rn is a noble gas belonging to the uranium series, and its indoor concentration in the air depends on the exhalation from surrounding soil and the exhalation from building materials. Read More

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Double Loop Ventricular Tachycardia Activation Patterns with Single Loop Mechanisms: Asymmetric Entrainment Responses During "Pseudo-Figure-of-Eight" Reentry.

Heart Rhythm 2021 May 6. Epub 2021 May 6.

The University of Chicago Medicine, Center for Arrhythmia Care, Pritzker School of Medicine, Chicago, IL. Electronic address:

Background: The classical paradigm of scar-related reentrant VT features a circuit with a double loop figure-of-eight (F8) activation pattern.

Objective: To interrogate VT circuits with F8 activation pattern by entrainment mapping to differentiate active from passive loops.

Methods: Sixty VT circuits with >90% of tachycardia cycle length delineated in high resolution were retrospectively analyzed in 55 patients (nonischemic 49%). Read More

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Neural Correlates of Sustained Attention and Cognitive Control in Depression and Rumination: An ERP Study.

Neurosci Lett 2021 May 6:135942. Epub 2021 May 6.

Rice University, United States.

Attention problems and risk for depression is often associated with a trait tendency towards rumination. Although, theorists have linked rumination to deficits in attention, the nature of its effect on cognitive control, and how it may interact with depression remains unclear. Therefore, this study explored cognitive control in depression and two forms of rumination (brooding and reflection) associated with passive and analytic responses to negative mood, respectively. Read More

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Respiratory syncytial virus seasonality and prevention strategy planning for passive immunisation of infants in low-income and middle-income countries: a modelling study.

Lancet Infect Dis 2021 May 6. Epub 2021 May 6.

Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK; Respiratory Syncytial Virus Network (ReSViNET) Foundation, Zeist, Netherlands. Electronic address:

Background: Respiratory syncytial virus (RSV) represents a substantial burden of disease in young infants in low-income and middle-income countries (LMICs). Because RSV passive immunisations, including maternal vaccination and monoclonal antibodies, can only grant a temporary period of protection, their effectiveness and efficiency will be determined by the timing of the immunisation relative to the underlying RSV seasonality. We aimed to assess the potential effect of different approaches for passive RSV immunisation of infants in LMICs. Read More

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Distribution of systemically administered nanoparticles during acute pancreatitis: effects of particle size and disease severity.

Pharmazie 2021 May;76(5):180-188

School of Pharmaceutical Sciences, Zhengzhou University, China; Key Laboratory of Targeting Therapy and Diagnosis of Critical Diseases, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, China;, Email:

Nanoparticles (NPs) promise to address current limitations for treating acute pancreatitis (AP) inflammatory cell-mediated sequestration. However, very few studies have explored the influence of NP size on their behavior in different stages of AP. The present work investigated the biodistribution of IR780 loaded mesoporous silica nanoparticles (MSNs) with sizes of 60, 150 or 300 nm after intravenous administration to rats of mild AP (MAP) or severe AP (SAP). Read More

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Dissipation and cross-contamination of miticides in apiculture. Evaluation by APIStrip-based sampling.

Chemosphere 2021 May 3;280:130783. Epub 2021 May 3.

Chemistry and Physics Department, University of Almeria, Agrifood Campus of International Excellence (ceiA3), 04120, Almería, Spain. Electronic address:

The active substances coumaphos, tau-fluvalinate and amitraz are among the most commonly employed synthetic miticides to control varroa infestations in apiculture. These compounds can persist inside the beehive matrices and can be detected long time after their application. The present study describes the application of a new passive sampling methodology to assess the dissipation of these miticides as well as the cross-contamination in neighboring beehives. Read More

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Application of an indigenous microorganisms-based fixed-bed GAC-biofilm reactor for passive and sustainable treatment of oil sands process water through combined adsorption and biodegradation processes.

Chemosphere 2021 Apr 30;280:130635. Epub 2021 Apr 30.

Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada. Electronic address:

In this study, a fixed-bed biofilm reactor (biofilter) was developed and applied for oil sands process water (OSPW) remediation by using granular activated carbon (GAC) as packing media. Using quantitative polymerase chain reaction (qPCR) detection, the total bacterial copy number (16S) in the GAC biofiltration system was found to reach a relatively stable level (1.3 ± 0. Read More

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Digital phenotyping adherence, feasibility, and tolerability in outpatients with schizophrenia.

J Psychiatr Res 2021 Apr 30;138:436-443. Epub 2021 Apr 30.

Department of Psychology, University of Georgia, Athens, GA, USA. Electronic address:

Digital phenotyping has potential for use as an objective and ecologically valid form of symptom assessment in clinical trials for schizophrenia. However, there are critical methodological factors that must be addressed before digital phenotyping can be used for this purpose. The current study evaluated levels of adherence, feasibility, and tolerability for active (i. Read More

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Effects of passive smoking on prenatal and infant development: Lessons from the past.

Econ Hum Biol 2021 Apr 9;42:101002. Epub 2021 Apr 9.

Università di Roma Tor Vergata, Italy; IZA, Berlin, Germany. Electronic address:

This paper studies the effect of passive smoking on child development. We use data from a time when the adverse effects of smoking on health were not known and when tobacco was not an inferior good. This allows us to disentangle the effect on foetuses and infants of smoking from that of other indicators of social and economic conditions. Read More

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Prostate Cancer Targeted X-ray Fluorescence Imaging via Gold Nanoparticles Functionalized with Prostate-Specific Membrane Antigen (PSMA).

Int J Radiat Oncol Biol Phys 2021 May 5. Epub 2021 May 5.

Department of Radiation Oncology, Miller school of Medicine, University of Miami, Miami, FL, 33136, USA.

Purpose: Gold nanoparticle (GNP) as a promising theranostic probe has been increasingly studied. The tumor-targeting efficiency of GNPs is crucial to increase the therapeutic ratio. In this study, we developed PSMA-targeted GNPs to enhance GNP uptake in prostate cancer and developed an x-ray fluorescence imaging system to noninvasively monitor and assess GNP delivery. Read More

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