Results 21 to 30 of about 230,676 (219)

Bacterias del género Bacillus con potencialidades para la sostenibilidad agrícola en Cuba

open access: yesAnales de la Academia de Ciencias de Cuba, 2021
Introducción: El uso de las bacterias promotoras del crecimiento vegetal (PGPB) permiten disminuir el empleo de químicos en la agricultura, perjudiciales para el ambiente y los seres humanos.
Marcia M. Rojas Badía   +5 more
doaj  

Las incógnitas de La Habana

open access: yesNuevo mundo mundos nuevos, 2008
El presente artículo analiza los diferentes problemas urbanísticos de La Habana durante los últimos cincuenta años e intenta proponer ideas para un equilibrio urbano en el futuro de la capital.  
Segre, Roberto, Coyula, Mario
openaire   +3 more sources

Covid-19: perception of population risk and compliance with protection measures in Havana

open access: yesRevista Habanera de Ciencias Médicas, 2022
Introduction: Before cases of Covid-19 were registered in Cuba, a prevention and control plan was developed and a working group was formed to advise the Government on the confrontation of the pandemic with a crucial and cohesive participation of the ...
Juan Rubén Herrera Masó   +6 more
doaj  

Local Polarization Unit Engineering Enables Ultrahigh Energy Density in NBT‐Based High‐Entropy Ceramic Capacitors

open access: yesAdvanced Science, EarlyView.
Herein, we demonstrate a breakthrough in dielectric energy storage by engineering local polarization units in high‐entropy multilayer ceramic capacitors (MLCCs). The optimized MLCCs achieve an ultrahigh recoverable energy density of 18.2 J cm−3 with 91% efficiency, coupled with exceptional thermal stability and fatigue resistance.
Shiyu Zhou   +11 more
wiley   +1 more source

Prognostic factors for survival in patients with gastrointestinal stromal tumors treated with adjuvant imatinib

open access: yesRevista Habanera de Ciencias Médicas, 2023
Introduction: Gastrointestinal stromal tumors are rare neoplasms of the gastrointestinal tract. A considerable number of cases have risk factors that cause early recurrence of the disease, therefore, adjuvant therapy with imatinib in this group of ...
Vilma Fleites-Calvo   +6 more
doaj  

Essential Oils of Plants as Biocides againstMicroorganisms Isolated from Cuban and Argentine Documentary Heritage [PDF]

open access: yes, 2012
Fil: Borrego, Sofía. Laboratory of Preventive Conservation. National Archive of the Republic of Cuba. Havana; CubaFil: Valdés, Oderlaise. Laboratorio de Conservación Preventiva. Archivo Nacional de la República de Cuba. La Habana Vieja.
Borges, Pedro   +5 more
core  

Open letter: The need for a site‐based biodiversity standard measuring and certifying impacts from nature‐based projects

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Despite growing investment in restoration, weak accountability and poor biodiversity monitoring mean many projects fail to achieve ecological recovery. The Global Biodiversity Standard (TGBS) offers a practical way to ensure that restoration finance delivers measurable gains for nature.
David Bartholomew   +254 more
wiley   +1 more source

La escritura póstuma de Reinaldo Arenas: 'Viaje a la Habana' [PDF]

open access: yes, 1992
Si algunos escritores (re)escriben siempre un único libro, el libro de sus vidas, Viaje a La Habana cierra el ciclo literario y vital del disidente cubano Reinaldo Arenas.
Valcárcel Rivera, Carmen
core   +1 more source

The Edification of Manuela Xiqués: Slavery, Finance, Biography, and the Construction of Modern Barcelona

open access: yesGender &History, EarlyView.
ABSTRACT An analysis of the dual biographies, economic and domestic, of Manuela Xiqués, an enslaver from nineteenth‐century Cuba and Spain, deepens our understanding of the role of European and Creole women in the nineteenth‐century Atlantic. This essay foregrounds the role of literature, namely family biography, as a locus of the processes of ...
Lisa Surwillo, Martín Rodrigo Alharilla
wiley   +1 more source

La unión y formación de poros de las actinoporinas están determi- nadas por las propiedades fisicoquímicas de la membrana

open access: yesAnales de la Academia de Ciencias de Cuba, 2022
Introducción. Las actinoporinas (AP) son proteínas formadoras de poro (PFP) que se aso - cian a membranas conduciendo a la muerte celular. Sticholysinas I y II (St, StI/II) se encuen- tran entre las AP más potentes descritas en la naturaleza.
Carlos Manuel Álvarez Valcárcel   +11 more
doaj  

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