0000000000943253

AUTHOR

Z Chen

showing 7 related works from this author

Seeing Double:ASASSN-18bt Exhibits a Two-Component Rise in the Early-Time K2 Light Curve

2018

On 2018 Feb. 4.41, the All-Sky Automated Survey for SuperNovae (ASAS-SN) discovered ASASSN-18bt in the K2 Campaign 16 field. With a redshift of z=0.01098 and a peak apparent magnitude of B_{max}=14.31, ASASSN-18bt is the nearest and brightest SNe Ia yet observed by the Kepler spacecraft. Here we present the discovery of ASASSN-18bt, the K2 light curve, and pre-discovery data from ASAS-SN and the Asteroid Terrestrial-impact Last Alert System (ATLAS). The K2 early-time light curve has an unprecedented 30-minute cadence and photometric precision for an SN~Ia light curve, and it unambiguously shows a ~4 day nearly linear phase followed by a steeper rise. Thus, ASASSN-18bt joins a growing list o…

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Field (physics)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsRadiusindividual (ASASSN-18bt SN 2018oh) [supernovae]Light curve01 natural sciencesPower lawRedshiftSupernovaApparent magnitude13. Climate actionSpace and Planetary ScienceAsteroid0103 physical sciencesQD010306 general physicsAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysicsQCQB
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A global experiment on motivating social distancing during the COVID-19 pandemic

2022

Significance\ud \ud Communicating in ways that motivate engagement in social distancing remains a critical global public health priority during the COVID-19 pandemic. This study tested motivational qualities of messages about social distancing (those that promoted choice and agency vs. those that were forceful and shaming) in 25,718 people in 89 countries. The autonomy-supportive message decreased feelings of defying social distancing recommendations relative to the controlling message, and the controlling message increased controlled motivation, a less effective form of motivation, relative to no message. Message type did not impact intentions to socially distance, but people’s existing mo…

behavior changeCoronavirus disease 2019 (COVID-19)230 Affective NeuroscienceINTENTIONSL400self-determination theoryPhysical DistancingSocial SciencesIntention:Ciências Sociais::Psicologia [Domínio/Área Científica]FATIGUEmotivationPARENTAL PROHIBITIONSDG 3 - Good Health and Well-beingPandemicHumanshealth communicationMESSAGESSociologyPandemicsMETAANALYSISbehavior change ; motivation ; health communication ; COVID-19 ; self-determination theoryBehaviour Change and Well-beingMultidisciplinarybusiness.industrySocial distanceCOVID-19Public relationsbehavior change; motivation; health communication; COVID-19; self-determination theoryCOVID-19; behavior change; health communication; motivation; self-determination theory; Humans; Intention; COVID-19; Motivation; Pandemics; Physical Distancing/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingINTERNALIZATIONbusinessBEHAVIOR
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Monolayer and multilayer field-effect transistors based on a high-mobility n-type polymer: effect of the polymeric texture on charge transport

2012

Transistor Thin Films Monolayers Polymer n-type
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Poly(naphthalenediimidequaterthiophene):Poly(hexyilthiophene) Heterojunctions. Efficient Polymer-to-Polymer Electron Transfer Interfaces

2013

Organic thin films solar cells and plastic solar cells [1] have attracted the attention of the scientific community especially as regards the performance of new conjugated polymers including their interfaces [2-4]. In this work, poly(naphthalenediimidequaterthiophene) (PNDIT4) and poly(hexyilthiophene) (P3HT) have been employed, for the first time, for engineering planar and bulk heterojunctions by the synergetic use of two techniques: electropolymerization and layer by layer deposition. Electropolymerization has been used for obtaining PNDIT4 thin films on transparent ITO/PET electrodes, starting from the synthesized monomer. Inverse Langmuir-Schaefer technique has been employed for deposi…

Electron transfer poly(naphthalenediimidequaterthiophene)Settore CHIM/02 - Chimica Fisica
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ELECTROCHROMIC PERFORMANCE OF A NOVEL POLY(NAPHTHALENEDIIMIDEQUATERTHIOPHENE)

2013

Conjugated polymers (CP) display several interesting properties which enable them their application in different fields such as solar cells, light emitting diodes, field effect transistors, electrochromic devices to cite a few. One of the most interesting properties of this class of materials is their ability of switching from a conductive to an insulating state and vice versa by changing their redox state. The possibility to switch from an oxidized to a neutral or reduced state induces variations of the optical spectrum due to changes in the electron excitation energy configuration resulting in electrochromism. Nowadays, electrochromic conjugated polymers are stimulating the development of…

Electrochromic devices
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Cardiovascular disease, chronic kidney disease, and diabetes mortality burden of cardiometabolic risk factors from 1980 to 2010: A comparative risk a…

2014

High blood pressure, blood glucose, serum cholesterol, and BMI are risk factors for cardiovascular diseases and some of these factors also increase the risk of chronic kidney disease and diabetes. We estimated mortality from cardiovascular diseases, chronic kidney disease, and diabetes that was attributable to these four cardiometabolic risk factors for all countries and regions from 1980 to 2010.

MaleSettore MED/09 - Medicina Internakidney diseaseEndocrinology Diabetes and Metabolismhumanoscoste de las enfermedadesDiseaseGlobal HealthCohort StudiesEndocrinologyCost of Illnesscardiovascular diseaseHealth TransitionRisk Factorstransición sanitariaestudios prospectivosRenal Insufficiency Chronic -- complications -- epidemiology -- mortalityevaluación de riesgosRenal InsufficiencyProspective StudiesChronicestudios de cohortesMetabolic Syndromeeducation.field_of_studydiabetesMortality rateAge Factors; Cardiovascular Diseases; Cohort Studies; Cost of Illness; Diabetes Complications; Female; Health Surveys; Humans; Male; Metabolic Syndrome X; Prospective Studies; Renal Insufficiency Chronic; Risk Assessment; Risk Factors; Sex Factors; Spatio-Temporal Analysis; Global Health; Health Transition; Internal Medicine; Endocrinology Diabetes and Metabolism; EndocrinologyMetabolic Syndrome XCardiovascular Diseases -- complications -- epidemiology -- mortalityAge FactorsCardiovascular diseaseDiabetes Mellitus chronic kidney diseaseDiabetes Complications -- epidemiology -- mortalitySciences bio-médicales et agricolesDiabetes and MetabolismCardiovascular Diseasesencuestas de saludFemaleanálisis temporoespacialRisk assessmentcomplicaciones de la diabetesinsuficiencia renalmedicine.medical_specialtyCardiovascular disease; kidney disease; diabetes mortalityPopulationenfermedades cardiovascularesMetabolic Syndrome X -- complications -- epidemiology -- mortalityRisk AssessmentArticleDiabetes ComplicationsSex FactorsSpatio-Temporal Analysiscardiovascular disease; chronic kidney disease; diabetes; mortalityInternal medicineEnvironmental healthDiabetes mellitusmedicineAge Factors; Cardiovascular Diseases; Cohort Studies; Cost of Illness; Diabetes Complications; Female; Health Surveys; Humans; Male; Metabolic Syndrome X; Prospective Studies; Renal Insufficiency Chronic; Risk Assessment; Risk Factors; Sex Factors; Spatio-Temporal Analysis; Global Health; Health Transition; Endocrinology Diabetes and Metabolism; Internal Medicine; EndocrinologyInternal Medicinefactores de riesgoHumansRisk factorRenal Insufficiency Chroniceducationbusiness.industrydiabetes mortalitymedicine.diseasemortalityHealth SurveysEndocrinologyRelative riskAge Factors; Cardiovascular Diseases/complications; Cardiovascular Diseases/epidemiology; Cardiovascular Diseases/mortality; Cohort Studies; Cost of Illness; Diabetes Complications/epidemiology; Diabetes Complications/mortality; Female; Global Health; Health Surveys; Health Transition; Humans; Male; Metabolic Syndrome X/complications; Metabolic Syndrome X/epidemiology; Metabolic Syndrome X/mortality; Prospective Studies; Renal Insufficiency Chronic/complications; Renal Insufficiency Chronic/epidemiology; Renal Insufficiency Chronic/mortality; Risk Assessment; Risk Factors; Sex Factors; Spatio-Temporal Analysisbusinesschronic kidney diseaseKidney diseaseThe Lancet Diabetes and Endocrinology
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Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19.1 million participants

2017

Background Raised blood pressure is an important risk factor for cardiovascular diseases and chronic kidney disease. We estimated worldwide trends in mean systolic and mean diastolic blood pressure, and the prevalence of, and number of people with, raised blood pressure, defined as systolic blood pressure of 140 mm Hg or higher or diastolic blood pressure of 90 mm Hg or higher. Methods For this analysis, we pooled national, subnational, or community population-based studies that had measured blood pressure in adults aged 18 years and older. We used a Bayesian hierarchical model to estimate trends from 1975 to 2015 in mean systolic and mean diastolic blood pressure, and the prevalence of rai…

presión sanguíneahypertensionSettore MED/09 - Medicina Internaunited-stateshumanosBlood Pressuresystematic analysisGlobal HealthRisk FactorsGeneral & Internal MedicinePrevalencefactores de riesgoHumanssecular trendscardiovascular risk-factorsMedicine (all)global burdenprevalenciaBayes Theoremgender-differences//purl.org/pe-repo/ocde/ford#3.02.00 [https]sodium-intakehealth examination surveyslow-incometeorema de Bayes
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