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Metadatos
61% 
Calidad de la página
41% 
Estructura
29% 
Enlazado
25% 
Servidor
95% 
Factores externos
100% 
Puntuación SEO
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1,71 s
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133,10 kB
Palabras
1962
Medios
25
Cantidad de enlaces
302 internos / 16 externos

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Metadatos

Título
(Extremadamente importante)
PNAS
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Meta descripción
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Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
La meta descripción es demasiado larga: 1000 píxelesOptimizar la descripción.
Rastreabilidad
(Extremadamente importante)
No se detectan problemas para acceder al sitio web.
Redirección canónica
(Importante)
https://www.pnas.org/
La página tiene una redirección canónica correcta.
Idioma
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Idioma reconocido automáticamente en el contenido: en
Idioma declarado en el código HTML: en
Ubicación geográfica del servidor: Estados Unidos de América
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Enlaces Alternate/Hreflang
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El dominio no es un subdominio.
La longitud del nombre del dominio es buena.
El dominio no contiene caracteres especiales.
URL de la página
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No se detecta ningún ID de sesión en la URL.
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Metaetiquetas

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descriptionProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
viewportwidth=device-width, initial-scale=1.0
citation_abstract_html_urlVacío
citation_pdf_urlVacío
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pbContext;journal:journal:pnas;page:string:Home Page;requestedJournal:journal:pnas;ctype:string:Journal Content;wgroup:string:Publication Websites;website:website:pnas-site
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og:imagehttp://www.pnas.org/pb-assets/images/Logos/header-logo/logo.svg
og:site_namePNAS
og:descriptionProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
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Calidad de la página

Contenido
(Extremadamente importante)
Algunas palabras del encabezado H1 no se repiten en el cuerpo del texto.
Hay 21 textos duplicados en esta página:
  • Texto duplicado: This is an addendum toComplex viscosity of helical and doubly helical ...
La cantidad media de palabras por frase es elevada: 29.82 palabras.
El número total de palabras en la página es bueno: 1962 palabras.
Un 24.1% del contenido está constituido por palabras vacías.
La página contiene un listado, lo que indica una buena estructuración del contenido.
Se han encontrado 31 párrafos en esta página.
No se detecta ningún placeholder de texto ni imagen.
Frames
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Esta página no utiliza ningún frameset.
Optimización para móviles
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Etiquetas Bold y Strong
(Poco importante)
Se han encontrado etiquetas de negritas vacías en esta página.
Optimización de imágenes
(Poco importante)
No se detecta ninguna descripción del atributo ALT en 3 imágenes. El contenido de los atributos ALT también es evaluado como texto por los buscadores y es muy importante para la búsqueda de imágenes.
Redes Sociales
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HTTPS
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El sitio utiliza HTTPS para transferir datos de forma segura.
Todos los archivos incluidos se transfieren a través de HTTPS.

Lista de medios

URLAtributo ALTTítulo
...Logos/header-logo/logo-1624644560537.svgPNAS LogoPNAS logo
...header-logo/logo-light-1641218818190.svgPNAS LogoPNAS logo
...Logos/header-logo/logo-1624644560537.svgPNAS
...s/icons/twitter-x-gray-1705527808743.svgCarece de atributo ALT
.../icons/researcher-gray-1705530250737.svgCarece de atributo ALT
...tml/home-slider/slide0-1723562634037.jpgCarece de atributo ALT
...tml/home-slider/slide1-1723562634467.jpgPictured is a wafer-scale, flexible spectrometer array. Image credit: Chunyu You, Ningge Huang, and Yongfeng Mei.
...tml/home-slider/slide2-1723562634073.jpgXenophrys mangshanensis in the Nanling Mountains.
...tml/home-slider/slide3-1701188922663.jpgIceberg
...92/pnas.2024.121.issue-33.largecover.pngThe cover image for the current issue
...home/about-section-img-1624574253010.pngabout section
...0.1073/pc.32419002/abs/pc.2024-08-05.jpgplaceholder
...0.1073/pc.32113667/abs/pc.2024-07-15.jpgplaceholder
...0.1073/pc.31930007/abs/pc.2024-07-01.jpgplaceholder
...92/pnas.2024.121.issue-33.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 33
...02/pnas.2024.121.issue-32.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 32
...8e/pnas.2024.121.issue-31.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 31
...3d/pnas.2024.121.issue-30.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 30
...65/pnas.2024.121.issue-29.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 29
...ce/pnas.2024.121.issue-28.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 28
...77/pnas.2024.121.issue-27.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 27
...f0/pnas.2024.121.issue-26.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 26
...1c/pnas.2024.121.issue-25.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 25
...9e/pnas.2024.121.issue-24.largecover.pngThe cover image for PNAS Table of Contents Vol. 121 No. 24
...gos/footer/logo-footer-1624408444100.svgPNAS logo

Estructura de la página

Encabezado H1
(Extremadamente importante)
Read PNAS Highlights—a collection of top scientific research, news, and profiles delivered to your inbox twice a month.
Más de un encabezado H1.
Encabezados
(Importante)
Algunos de los encabezados H se repiten dos veces.
Hay 64 encabezados H en esta página. La cantidad de encabezados debería guardar una mejor proporción en relación al texto.

Estructura de los encabezados

Jerarquía de encabezadosContenido
H1 Read PNAS Highlights—a collection of top scientific research, news, and profiles delivered to your inbox twice a month.
H1 August 13, 2024; vol. 121 no. 33
H1 Latest in Ecology: Amphibian biodiversity hotspots in China
H1 The world’s glaciers are melting. But how do researchers know exactly how much ice is disappearing and at what rate?
H2 Request Username
H2 Create a new account
H2 Login
H2 Change Password
H2 Current Issue
H2 PNAS is one of the world's most-cited and comprehensive multidisciplinary scientific journals.
H2 In the News
H2 Science Sessions podcasts
H2 Front Matter
H2 Featured QnAs
H2 Recent Issues
H2 Submit to PNAS
H3 In This Issue
H3 Spatiotemporally controlled microvortices provide advanced microfluidic components
H3 Understanding the relationship between intergenerational mobility and community violence
H3 The thermoneutral zone in women takes an “arctic” shift compared to men
H3 Effect of skull morphology on fox snow diving
H3 Atmosphere teleconnections from abatement of China aerosol emissions exacerbate Northeast Pacific warm blob events
H3 QnAs with Spyros Artavanis-Tsakonas
H3 Liquid water in the Martian mid-crust
H3 A therapeutic small molecule enhances γ-oscillations and improves cognition/memory in Alzheimer’s disease model mice
H3 Bodily maps of emotions
H3 How redlining affects biodiversity
H3 Animal's eye view of the ocean
H3 Inequitable exposure to wildfire smoke
H3 Extended time, elevated expectations: The unappreciated downsides of pausing the tenure clock
H3 Synthetic data can aid the analysis of clinical outcomes: How much can it be trusted?
H3 Tiny and contentious “crystal clocks” in volcanic rocks could aid early warning for eruptions
H3 Researchers need to better address time-of-day as a critical biological variable
H3 Collaborative consortia can boost postdoctoral workforce development
H3 Sediment DNA can revolutionize archaeology—if it is used the right way
H3 Can ChatGPT help researchers understand how the human brain handles language?
H3 The Global Biodiversity Framework can be leveraged to better manage transboundary watersheds
H3 QnAs with Susan T. Lovett
H3 QnAs with Ulrich R. Christensen
H3 QnAs with Spyros Artavanis-Tsakonas Texto duplicado
H3 Sign up for thePNAS Highlights newsletter
H4 Featured Topics
H4 Articles By Topic
H4 Featured Topics Texto duplicado
H4 Articles By Topic Texto duplicado
H4 Featured Topic
H4 Articles By Topic Texto duplicado
H4 PNAS UPDATES
H4 PNAS Special Feature Blog: Physics Meets Machine Learning
H4 Announcing New Website Services: Expanded Author Services, Updates to the Article PDF, and Article-Podcast Links
H4 2023 Cozzarelli Prize Recipients
H4 PNAS Nexus Expands Its License Options
H4 PNAS Announces New Guidelines for the Retention of Raw Data
H5 Congrats!
H5 Vol. 121No. 33
H5 Vol. 121No. 32
H5 Vol. 121No. 31
H5 Vol. 121No. 30
H5 Vol. 121No. 29
H5 Vol. 121No. 28
H5 Vol. 121No. 27
H5 Vol. 121No. 26
H5 Vol. 121No. 25
H5 Vol. 121No. 24
Algunos textos ancla son demasiado largos.
Algunos enlaces internos contienen parámetros dinámicos. Las URL internas no deberían contener parámetros dinámicos, salvo que estén marcadas como nofollow.
Algunos textos ancla se repiten más de una vez en varios enlaces.
Hay 3 links con un texto ancla que no es suficientemente relevante.
La cantidad de enlaces internos es adecuada.
Hay 16 enlaces externos en esta página.

Enlaces detectados en esta página

EnlacePropiedadesTexto ancla
https://www.pnas.org/IMG-ALT PNAS Logo
https://www.pnas.org/Texto duplicado IMG-ALT PNAS Logo
/toc/pnas/currentCurrent Issue
https://www.pnas.org/latestLatest Articles
/about/special-featuresSpecial Features
https://www.pnas.org/loi/pnasList of Issues
https://academic.oup.com/pnasn...Externo Subdominio PNAS Nexus
https://www.pnas.org/front-matterFront Matter
/author-centerInformation for Authors
/author-center/editorial-and-j...Editorial and Journal Policies
/author-center/submitting-your...Submission Procedures
/author-center/publication-cha...Publication Charges
https://www.pnas.org/Texto ancla Physical Sciences
https://www.pnas.org/Texto ancla Social Sciences
https://www.pnas.org/Texto ancla Biological Sciences
https://www.pnas.org/topic/physPhysics
https://www.pnas.org/topic/chemChemistry
/sustainability-scienceSustainability Science
/topic/app-mathApplied Mathematics
/topic/app-physApplied Physical Sciences
https://www.pnas.org/topic/astroAstronomy
/biophysics-and-computational-...Biophysics and Computational Biology
/topic/comp-sciComputer Sciences
/topic/earth-sciEarth, Atmospheric, and Planetary Sciences
https://www.pnas.org/topic/engEngineering
/environmental-sciencesEnvironmental Sciences
https://www.pnas.org/topic/mathMathematics
https://www.pnas.org/topic/statStatistics
https://www.pnas.org/anthropologyAnthropology
/sustainability-scienceTexto duplicado Sustainability Science
https://www.pnas.org/topic/demoDemography
/topic/econ-sciEconomic Sciences
/environmental-sciencesTexto duplicado Environmental Sciences
/topic/pol-sciPolitical Sciences
/psychological-and-cognitive-s...Psychological and Cognitive Sciences
https://www.pnas.org/anthropologyTexto duplicado Anthropology
/sustainability-scienceTexto duplicado Sustainability Science
https://www.pnas.org/topic/ag-sciAgricultural Sciences
/topic/app-bioApplied Biological Sciences
/topic/biochemBiochemistry
/biophysics-and-computational-...Texto duplicado Biophysics and Computational Biology
/topic/cell-bioCell Biology
/topic/dev-bioDevelopmental Biology
https://www.pnas.org/topic/ecoEcology
/environmental-sciencesTexto duplicado Environmental Sciences
/topic/evolutionEvolution
/topic/geneticsGenetics
https://www.pnas.org/topic/immunImmunology and Inflammation
/topic/med-sciMedical Sciences
/topic/microbioMicrobiology
https://www.pnas.org/topic/neuroNeuroscience
https://www.pnas.org/topic/pharmPharmacology
https://www.pnas.org/topic/physioPhysiology
/topic/plant-bioPlant Biology
/topic/pop-bioPopulation Biology
/psychological-and-cognitive-s...Texto duplicado Psychological and Cognitive Sciences
/topic/sys-bioSystems Biology
/topic/covid-19Covid-19
/action/showCart?FlowID=10 Cart
A-TITLE Show shopping cart
/action/showLoginSign in
/action/registrationRegister
/action/showLogin?redirectUri=/Individual Login
/action/ssostart?redirectUri=/Institutional Login
https://www.pnascentral.org/cg...Externo Subdominio Submit
https://www.pnas.org/Texto ancla Anywhere
https://www.pnas.org/Texto ancla Citation
https://www.pnas.org/Texto ancla Texto duplicado PNAS Nexus
https://www.pnas.org/Texto ancla Proceedings of the National Academy of Sciences
/search/advancedAdvanced Search
/action/doSearch?AllField=covi...Texto duplicado Covid-19
/action/doSearch?AllField=arti...Artificial Intelligence
/action/doSearch?AllField=mpoxMpox
/action/doSearch?AllField=clim...Climate Change
/action/doSearch?AllField=gun+...Gun Violence
https://www.pnas.org/IMG-ALT PNAS
https://www.facebook.com/pages...Externo Subdominio A-TITLE Facebook
https://twitter.com/PNASNewsExterno A-TITLE Twitter
https://www.youtube.com/channe...Externo Subdominio A-TITLE Youtube
https://www.linkedin.com/showc...Nueva ventana Externo Subdominio A-TITLE LinkedIn
/action/showPreferences?menuTa...A-TITLE Mail
https://www.pnas.org/about/rssA-TITLE RSS feeds
https://www.researcher-app.com...Externo Subdominio A-TITLE Researcher App
/about/staff-directorySubdominio Contact
/about/site-mapSubdominio Site Map
https://www.pnas.org/about/termsSubdominio Terms & Privacy Policy
/about/accessibilitySubdominio Accessibility
https://www.pnas.org/Texto ancla Skip slideshow
http://eepurl.com/gymAfDExterno Read PNAS Highlights—a collection of top scientific research, news, and profiles delivered to your inbox twice a month. Sign up here.
/toc/pnas/121/33August 13, 2024; vol. 121 no. 33 Volume 121, Issue 33: View articles in the latest issue of PNAS.
IMG-ALT Pictured is a wafer-scale, flexible spectrometer array. Image credit: Chunyu You, Ningge Huang, and Yongfeng Mei.
https://doi.org/10.1073/pnas.2...Externo Latest in Ecology: Amphibian biodiversity hotspots in China Click to read more. Image credit: Han Wan.
IMG-ALT Xenophrys mangshanensis in the Nanling Mountains.
/post/update/measure-massive-meltThe world’s glaciers are melting. But how do researchers know exactly how much ice is disappearing and at what rate? Click to watch the Featured Video.
IMG-ALT Iceberg
/action/showPreferences?menuTa...sign up for alerts
/author-centerAuthor center
https://www.pnascentral.org/cg...Externo Subdominio submit
/action/showLoginReturning user
/help/cookie-policyFind out more
/help/cookie-policyCONTINUE
/action/requestResetPasswordTexto ancla no relevante
here
/action/registrationTexto duplicado Texto ancla no relevante
here
/action/ssostart?redirectUri=/Texto duplicado Institutional Login
/toc/pnas/121/33Texto duplicado Current Issue
/toc/pnas/currentIMG-ALT The cover image for the current issue
A-TITLE View the current issue table of contents
/topic/type/twipThis Week in PNAS
/doi/10.1073/iti3324121In This Issue
A-TITLE In This Issue
/topic/type/research-articleResearch Article
/doi/10.1073/pnas.2306182121Spatiotemporally controlled microvortices provide advanced microfluidic components
A-TITLE Spatiotemporally controlled microvortices provide advanced microfluidic components
/author/Saito,+MakotoMakoto Saito
A-TITLE Makoto Saito
/author/Arai,+FumihitoFumihito Arai
A-TITLE Fumihito Arai
/author/Yamanishi,+YokoYoko Yamanishi
A-TITLE Yoko Yamanishi
/author/Sakuma,+ShinyaShinya Sakuma
A-TITLE Shinya Sakuma
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.2309066121Understanding the relationship between intergenerational mobility and community violence
A-TITLE Understanding the relationship between intergenerational mobility and community violence
/author/Mann,+OliviaOlivia Mann
A-TITLE Olivia Mann
/author/Edin,+Kathryn+JKathryn J. Edin
A-TITLE Kathryn J. Edin
/author/Shaefer,+H+LukeH. Luke Shaefer
A-TITLE H. Luke Shaefer
/toc/pnas/currentVIEW FULL TABLE OF CONTENTS
https://www.pnas.org/aboutTexto ancla no relevante
Read More
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.2311116121The thermoneutral zone in women takes an “arctic” shift compared to men
A-TITLE The thermoneutral zone in women takes an “arctic” shift compared to men
/author/Brychta,+Robert+JRobert J. Brychta
A-TITLE Robert J. Brychta
/author/McGehee,+SuzanneSuzanne McGehee
A-TITLE Suzanne McGehee
/author/Huang,+ShanShan Huang
A-TITLE Shan Huang
/author/Leitner,+Brooks+PBrooks P. Leitner
A-TITLE Brooks P. Leitner
/author/Duckworth,+Courtney+JCourtney J. Duckworth
A-TITLE Courtney J. Duckworth
/author/Fletcher,+Laura+ALaura A. Fletcher
A-TITLE Laura A. Fletcher
/author/Kim,+KatherineKatherine Kim
A-TITLE Katherine Kim
/author/Cassimatis,+Thomas+MThomas M. Cassimatis
A-TITLE Thomas M. Cassimatis
/author/Israni,+Nikita+SNikita S. Israni
A-TITLE Nikita S. Israni
/author/Lea,+Hannah+JHannah J. Lea
A-TITLE Hannah J. Lea
/author/Lentz,+Taylor+NTaylor N. Lentz
A-TITLE Taylor N. Lentz
/author/Pierce,+Anne+EAnne E. Pierce
A-TITLE Anne E. Pierce
/author/Jiang,+AlexAlex Jiang
A-TITLE Alex Jiang
/author/LaMunion,+Samuel+RSamuel R. LaMunion
A-TITLE Samuel R. LaMunion
/author/Thomas,+Reed+JReed J. Thomas
A-TITLE Reed J. Thomas
/author/Ishihara,+AsukaAsuka Ishihara
A-TITLE Asuka Ishihara
/author/Courville,+Amber+BAmber B. Courville
A-TITLE Amber B. Courville
/author/Yang,+Shanna+BShanna B. Yang
A-TITLE Shanna B. Yang
/author/Reitman,+Marc+LMarc L. Reitman
A-TITLE Marc L. Reitman
/author/Cypess,+Aaron+MAaron M. Cypess
A-TITLE Aaron M. Cypess
/author/Chen,+Kong+YKong Y. Chen
A-TITLE Kong Y. Chen
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.2321179121Effect of skull morphology on fox snow diving
A-TITLE Effect of skull morphology on fox snow diving
/author/Yuk,+JisooJisoo Yuk
A-TITLE Jisoo Yuk
/author/Pandey,+AnupamAnupam Pandey
A-TITLE Anupam Pandey
/author/Park,+LeenaLeena Park
A-TITLE Leena Park
/author/Bemis,+William+EWilliam E. Bemis
A-TITLE William E. Bemis
/author/Jung,+SunghwanSunghwan Jung
A-TITLE Sunghwan Jung
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.2313797121Atmosphere teleconnections from abatement of China aerosol emissions exacerbate Northeast Pacific warm blob events
A-TITLE Atmosphere teleconnections from abatement of China aerosol emissions exacerbate Northeast Pacific warm blob events
/author/Wang,+HaiHai Wang
A-TITLE Hai Wang
/author/Zheng,+Xiao-TongXiao-Tong Zheng
A-TITLE Xiao-Tong Zheng
/author/Cai,+WenjuWenju Cai
A-TITLE Wenju Cai
/author/Han,+Zi-WenZi-Wen Han
A-TITLE Zi-Wen Han
/author/Xie,+Shang-PingShang-Ping Xie
A-TITLE Shang-Ping Xie
/author/Kang,+Sarah+MSarah M. Kang
A-TITLE Sarah M. Kang
/author/Geng,+Yu-FanYu-Fan Geng
A-TITLE Yu-Fan Geng
/author/Liu,+FukaiFukai Liu
A-TITLE Fukai Liu
/author/Wang,+Chuan-YangChuan-Yang Wang
A-TITLE Chuan-Yang Wang
/author/Wu,+YueYue Wu
A-TITLE Yue Wu
/author/Xiang,+BaoqiangBaoqiang Xiang
A-TITLE Baoqiang Xiang
/author/Zhou,+LeiLei Zhou
A-TITLE Lei Zhou
/topic/type/qnasQnAs
/doi/10.1073/pnas.2412426121QnAs with Spyros Artavanis-Tsakonas
A-TITLE QnAs with Spyros Artavanis-Tsakonas
/author/Ravindran,+SandeepSandeep Ravindran
A-TITLE Sandeep Ravindran
/about/pnas-in-the-newsView all news
/topic/type/brief-reportBrief Report
/doi/10.1073/pnas.2409983121Liquid water in the Martian mid-crust
A-TITLE Liquid water in the Martian mid-crust
/author/Wright,+VashanVashan Wright
A-TITLE Vashan Wright
/author/Morzfeld,+MatthiasMatthias Morzfeld
A-TITLE Matthias Morzfeld
/author/Manga,+MichaelMichael Manga
A-TITLE Michael Manga
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.2400420121A therapeutic small molecule enhances γ-oscillations and improves cognition/memory in Alzheimer’s disease model mice
A-TITLE A therapeutic small molecule enhances γ-oscillations and improves cognition/memory in Alzheimer’s disease model mice
/author/Wei,+XiaofeiXiaofei Wei
A-TITLE Xiaofei Wei
/author/Campagna,+Jesus+JJesus J. Campagna
A-TITLE Jesus J. Campagna
/author/Jagodzinska,+BarbaraBarbara Jagodzinska
A-TITLE Barbara Jagodzinska
/author/Wi,+DongwookDongwook Wi
A-TITLE Dongwook Wi
/author/Cohn,+WhitakerWhitaker Cohn
A-TITLE Whitaker Cohn
/author/Lee,+Jessica+TJessica T. Lee
A-TITLE Jessica T. Lee
/author/Zhu,+ChunniChunni Zhu
A-TITLE Chunni Zhu
/author/Huang,+Christine+SChristine S. Huang
A-TITLE Christine S. Huang
/author/Molnár,+LászlóLászló Molnár
A-TITLE László Molnár
/author/Houser,+Carolyn+RCarolyn R. Houser
A-TITLE Carolyn R. Houser
/author/John,+VargheseVarghese John
A-TITLE Varghese John
/author/Mody,+IstvanIstvan Mody
A-TITLE Istvan Mody
/topic/type/research-articleTexto duplicado Research Article
/doi/10.1073/pnas.1321664111Bodily maps of emotions
A-TITLE Bodily maps of emotions
/author/Nummenmaa,+LauriLauri Nummenmaa
A-TITLE Lauri Nummenmaa
/author/Glerean,+EnricoEnrico Glerean
A-TITLE Enrico Glerean
/author/Hari,+RiittaRiitta Hari
A-TITLE Riitta Hari
/author/Hietanen,+Jari+KJari K. Hietanen
A-TITLE Jari K. Hietanen
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A-TITLE Researchers need to better address time-of-day as a critical biological variable
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/toc/pnas/121/33August 13, 2024 Vol. 121No. 33
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