LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 90

Search options

  1. Article ; Online: Number of COVID-19 cases in Chile at 120 days with data at 21/03/2020 and threshold of daily effort to flatten the epi-curve.

    Córdova-Lepe, Fernando / Gutiérrez-Aguilar, Rodrigo / Gutiérrez-Jara, Juan Pablo

    Medwave

    2020  Volume 20, Issue 2, Page(s) e7861

    Abstract: We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a ...

    Title translation Número de casos COVID-19 en Chile a 120 días con datos al 21/03/2020 y umbral del esfuerzo diario para aplanar la epi-curva.
    Abstract We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a cubic adjustment model in which we estimate over 100 000 cases at 120 days consistent with the data recorded to date. Furthermore, we use an exponential total case model to represent (using a parameter) the daily effort to reduce a high initial daily growth rate. We simulate this model with different numerical scenarios of feasibility and desired future prevalence.
    MeSH term(s) Betacoronavirus ; COVID-19 ; Chile/epidemiology ; Coronavirus Infections/epidemiology ; Disease Outbreaks ; Humans ; Models, Statistical ; Pandemics ; Pneumonia, Viral/epidemiology ; Prevalence ; SARS-CoV-2
    Keywords covid19
    Language Spanish
    Publishing date 2020-03-27
    Publishing country Chile
    Document type Journal Article
    ZDB-ID 2818022-7
    ISSN 0717-6384 ; 0717-6384
    ISSN (online) 0717-6384
    ISSN 0717-6384
    DOI 10.5867/medwave.2020.02.7861
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Modelo de umbral de reducción de tasa diaria de casos COVID-19 para evitar el colapso hospitalario en Chile.

    Gutiérrez-Aguilar, Rodrigo / Córdova-Lepe, Fernando / Muñoz-Quezada, María Teresa / Gutiérrez-Jara, Juan Pablo

    Medwave

    2020  Volume 20, Issue 3, Page(s) e7871

    Abstract: Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the ... ...

    Title translation Model for a threshold of daily rate reduction of COVID-19 cases to avoid hospital collapse in Chile.
    Abstract Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the statistics of new cases per day, and the assumption of maximum quota, the dynamics associated with the variables number of hospitalized persons (critical occupants) and mortality in the system are explored. A parametric threshold condition is obtained, which involves a parameter associated with the minimum daily effort for not collapsing the system. To exemplify, we include some simulations for the case of Chile, based on a parameter of effort to be sustained with the purpose of lowering the daily infection rate.
    MeSH term(s) Betacoronavirus ; COVID-19 ; Chile/epidemiology ; Coronavirus Infections/epidemiology ; Coronavirus Infections/prevention & control ; Coronavirus Infections/transmission ; Health Resources/supply & distribution ; Health Services Needs and Demand/statistics & numerical data ; Hospital Bed Capacity/statistics & numerical data ; Hospitalization/statistics & numerical data ; Humans ; Models, Theoretical ; Pandemics/prevention & control ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/prevention & control ; Pneumonia, Viral/transmission ; Reference Values ; SARS-CoV-2 ; Surge Capacity/statistics & numerical data
    Keywords covid19
    Language Spanish
    Publishing date 2020-04-08
    Publishing country Chile
    Document type Journal Article
    ZDB-ID 2818022-7
    ISSN 0717-6384 ; 0717-6384
    ISSN (online) 0717-6384
    ISSN 0717-6384
    DOI 10.5867/medwave.2020.03.7871
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Number of COVID-19 cases in Chile at 120 days with data at 21/03/2020 and threshold of daily effort to flatten the epi-curve

    Fernando Córdova-Lepe / Rodrigo Gutiérrez-Aguilar / Juan Pablo Gutiérrez-Jara

    Medwave, Vol 20, Iss 02, Pp e7861-e

    2020  Volume 7861

    Abstract: We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a ...

    Abstract We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a cubic adjustment model in which we estimate over 100 000 cases at 120 days consistent with the data recorded to date. Furthermore, we use an exponential total case model to represent (using a parameter) the daily effort to reduce a high initial daily growth rate. We simulate this model with different numerical scenarios of feasibility and desired future prevalence.
    Keywords coronavirus ; epidemiology ; mathematical models ; Medicine ; R ; Medicine (General) ; R5-920 ; covid19
    Language English
    Publishing date 2020-03-01T00:00:00Z
    Publisher Medwave Estudios Limitada
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Apuntes sobre la historia de la cirugía cardiaca en Costa Rica

    Rodrigo Gutiérrez-Aguilar

    Acta Médica Costarricense, Vol 56, Iss 3, Pp 96-

    2014  Volume 100

    Abstract: ... el respeto de sus colegas”. Doce años después, el joven alajuelense Julio Aguilar Soto se graduaba ... el primero de mayo de 1917 y al que el Dr. Aguilar Soto evitaba referirse, de acuerdo a su personalidad ...

    Abstract La historia de la cirugía cardiaca en Costa Rica, señala tres fechas fundamentales de las que por azares del destino he sido testigo directo o indirecto. 1 de Mayo de 1917. Primera sutura de una herida del corazón en Costa Rica. El 9 de setiembre de 1896 el alemán Ludwig Rehn, sutura con éxito una herida del corazón de un jardinero de 22 años, esa fecha es reconocida en todo el mundo como el inicio de la cirugía cardiaca, acabando así con el mito de la inviolabilidad quirúrgica de ese órgano y borrando la frase del influyente cirujano Theodore Billroth: “El cirujano que trate de suturar una herida del corazón, perderá el respeto de sus colegas”. Doce años después, el joven alajuelense Julio Aguilar Soto se graduaba como médico en la prestigiosa universidad de Tulane en Louisiana, habiendo recibido entrenamiento en cirugía de torax con el Dr. Rudolph Matas, histórico pionero en ese campo. Pronto formaría parte de un distinguido grupo de cirujanos que hacían verdaderos prodigios en el Hospital San Juan de Dios, como el que ocurrió el primero de mayo de 1917 y al que el Dr. Aguilar Soto evitaba referirse, de acuerdo a su personalidad de sólidos conocimientos científicos, pero ajeno a los elogios y reconocimientos externos, soy testigo de ello, ya que gracias a un parentesco familiar lo pude conocer y departir con él varias veces allá por los años 60.
    Keywords history ; cardiac surgery ; Costa Rica ; Medicine (General) ; R5-920 ; Medicine ; R
    Language Spanish
    Publishing date 2014-09-01T00:00:00Z
    Publisher Colegio de Médicos y Cirujanos de Costa Rica
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Apuntes sobre la historia de la cirugía cardiaca en Costa Rica

    Rodrigo Gutiérrez-Aguilar

    Acta Médica Costarricense, Vol 56, Iss 3, Pp 96-

    2014  Volume 100

    Abstract: ... el respeto de sus colegas”. Doce años después, el joven alajuelense Julio Aguilar Soto se graduaba ... el primero de mayo de 1917 y al que el Dr. Aguilar Soto evitaba referirse, de acuerdo a su personalidad ...

    Abstract La historia de la cirugía cardiaca en Costa Rica, señala tres fechas fundamentales de las que por azares del destino he sido testigo directo o indirecto. 1 de Mayo de 1917. Primera sutura de una herida del corazón en Costa Rica. El 9 de setiembre de 1896 el alemán Ludwig Rehn, sutura con éxito una herida del corazón de un jardinero de 22 años, esa fecha es reconocida en todo el mundo como el inicio de la cirugía cardiaca, acabando así con el mito de la inviolabilidad quirúrgica de ese órgano y borrando la frase del influyente cirujano Theodore Billroth: “El cirujano que trate de suturar una herida del corazón, perderá el respeto de sus colegas”. Doce años después, el joven alajuelense Julio Aguilar Soto se graduaba como médico en la prestigiosa universidad de Tulane en Louisiana, habiendo recibido entrenamiento en cirugía de torax con el Dr. Rudolph Matas, histórico pionero en ese campo. Pronto formaría parte de un distinguido grupo de cirujanos que hacían verdaderos prodigios en el Hospital San Juan de Dios, como el que ocurrió el primero de mayo de 1917 y al que el Dr. Aguilar Soto evitaba referirse, de acuerdo a su personalidad de sólidos conocimientos científicos, pero ajeno a los elogios y reconocimientos externos, soy testigo de ello, ya que gracias a un parentesco familiar lo pude conocer y departir con él varias veces allá por los años 60.
    Keywords history ; cardiac surgery ; Costa Rica ; Medicine (General) ; R5-920 ; Medicine ; R
    Language Spanish
    Publishing date 2014-09-01T00:00:00Z
    Publisher Colegio de Médicos y Cirujanos de Costa Rica
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article: Número de casos COVID-19 en Chile a 120 días con datos al 21/03/2020 y umbral del esfuerzo diario para aplanar la epi-curva./ Number of COVID-19 cases in Chile at 120 days with data at 21/03/2020 and threshold of daily effort to flatten the epi-curve

    Córdova-Lepe, Fernando / Gutiérrez-Aguilar, Rodrigo / Gutiérrez-Jara, Juan Pablo

    Medwave

    Abstract: We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a ...

    Abstract We present a straightforward projection with data up to 21/03/2020 of the evolution of the number of COVID-19 cases per day in Chile using data from the Ministry of Health. Assuming an arithmetical growth in the second variation of the data, we present a cubic adjustment model in which we estimate over 100 000 cases at 120 days consistent with the data recorded to date. Furthermore, we use an exponential total case model to represent (using a parameter) the daily effort to reduce a high initial daily growth rate. We simulate this model with different numerical scenarios of feasibility and desired future prevalence.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #32225133
    Database COVID19

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: Model for a threshold of daily rate reduction of COVID-19 cases to avoid hospital collapse in Chile

    Rodrigo Gutiérrez-Aguilar / Fernando Córdova-Lepe / María Teresa Muñoz-Quezada / Juan Pablo Gutiérrez-Jara

    Medwave, Vol 20, Iss 03, Pp e7871-e

    2020  Volume 7871

    Abstract: Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the ... ...

    Abstract Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the statistics of new cases per day, and the assumption of maximum quota, the dynamics associated with the variables number of hospitalized persons (critical occupants) and mortality in the system are explored. A parametric threshold condition is obtained, which involves a parameter associated with the minimum daily effort for not collapsing the system. To exemplify, we include some simulations for the case of Chile, based on a parameter of effort to be sustained with the purpose of lowering the daily infection rate.
    Keywords coronavirus ; epidemiology ; mathematics ; models ; Medicine ; R ; Medicine (General) ; R5-920 ; covid19
    Language English
    Publishing date 2020-04-01T00:00:00Z
    Publisher Medwave Estudios Limitada
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article: Modelo de umbral de reducción de tasa diaria de casos COVID-19 para evitar el colapso hospitalario en Chile./ [Model for a threshold of daily rate reduction of COVID-19 cases to avoid hospital collapse in Chile]

    Gutiérrez-Aguilar, Rodrigo / Córdova-Lepe, Fernando / Muñoz-Quezada, María Teresa / Gutiérrez-Jara, Juan Pablo

    Medwave

    Abstract: Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the ... ...

    Abstract Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e.g., critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic. In connection with the statistics of new cases per day, and the assumption of maximum quota, the dynamics associated with the variables number of hospitalized persons (critical occupants) and mortality in the system are explored. A parametric threshold condition is obtained, which involves a parameter associated with the minimum daily effort for not collapsing the system. To exemplify, we include some simulations for the case of Chile, based on a parameter of effort to be sustained with the purpose of lowering the daily infection rate.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #32469855
    Database COVID19

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article: [Model for a threshold of daily rate reduction of COVID-19 cases to avoid hospital collapse in Chile]

    Gutierrez-Aguilar, Rodrigo / Cordova-Lepe, Fernando / Munoz-Quezada, Maria Teresa / Gutierrez-Jara, Juan Pablo

    Medwave

    Abstract: Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e g , critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic In connection with the ... ...

    Abstract Using a mathematical model, we explore the problem of availability versus overdemand of critical hospital processes (e g , critical beds) in the face of a steady epidemic expansion such as is occurring from the COVID-19 pandemic In connection with the statistics of new cases per day, and the assumption of maximum quota, the dynamics associated with the variables number of hospitalized persons (critical occupants) and mortality in the system are explored A parametric threshold condition is obtained, which involves a parameter associated with the minimum daily effort for not collapsing the system To exemplify, we include some simulations for the case of Chile, based on a parameter of effort to be sustained with the purpose of lowering the daily infection rate
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #420211
    Database COVID19

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article ; Online: Lattice-Boltzmann simulations of the dynamics of liquid barrels.

    Ruiz-Gutiérrez, Élfego / Ledesma-Aguilar, Rodrigo

    Journal of physics. Condensed matter : an Institute of Physics journal

    2020  Volume 32, Issue 21, Page(s) 214007

    Abstract: We study the relaxation towards equilibrium of a liquid barrel-a partially wetting droplet in a wedge geometry-using a diffuse-interface approach. We formulate a hydrodynamic model of the motion of the barrel in the framework of the Navier-Stokes and ... ...

    Abstract We study the relaxation towards equilibrium of a liquid barrel-a partially wetting droplet in a wedge geometry-using a diffuse-interface approach. We formulate a hydrodynamic model of the motion of the barrel in the framework of the Navier-Stokes and Cahn-Hilliard equations of motion. We present a lattice-Boltzmann method to integrate the diffuse-interface equations, where we introduce an algorithm to model the dynamic wetting of the liquid on smooth solid boundaries. We present simulation results of the over-damped dynamics of the liquid barrel. We find that the relaxation of the droplets is driven by capillary forces and damped by friction forces. We show that the friction is determined by the contribution of the bulk flow, the corner flow near the contact lines and the motion of the contact lines by comparing simulation results for the relaxation time of the barrel. Our results are in broad agreement with previous analytical predictions based on a sharp interface model.
    Language English
    Publishing date 2020-01-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472968-4
    ISSN 1361-648X ; 0953-8984
    ISSN (online) 1361-648X
    ISSN 0953-8984
    DOI 10.1088/1361-648X/ab7034
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top