LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 292

Search options

  1. Article ; Online: Uso del tiempo de las mujeres rurales jefas de hogar en Costa Rica

    Ángel Jesús Porras Solís

    Revista Espiga, Vol 20, Iss 42, Pp 169-

    2022  Volume 187

    Abstract: 2021ResumenEn Costa Rica, más de una tercera parte de los hogares rurales tienen una mujer como jefa de hogar; la mayoría de ellas se debe incorporar al mercado laboral, con limitados niveles de escolaridad, empleos poco calificados y de baja ... ...

    Abstract 2021ResumenEn Costa Rica, más de una tercera parte de los hogares rurales tienen una mujer como jefa de hogar; la mayoría de ellas se debe incorporar al mercado laboral, con limitados niveles de escolaridad, empleos poco calificados y de baja remuneración, para dar sostén económico a su hogar. Aunque hoy se reconoce una mayor participación de las mujeres en las actividades económicas del medio rural, los datos de la Encuesta Nacional de Uso del Tiempo (2017) muestran que, por un amplio margen, siguen soportando la mayor carga de trabajo doméstico no remunerado. Justamente, el objetivo de este artículo es dar a conocer, mediante datos concretos, la realidad de las mujeres rurales jefas de hogar en cuanto a la forma en que distribuyen su tiempo en actividades de trabajo remunerado y no remunerado, así como cuantificar su posición respecto de los hombres rurales jefes de hogar.
    Keywords género ; mujeres rurales ; mujeres jefas de hogar ; trabajo doméstico no remunerado ; Social Sciences ; H
    Language Spanish
    Publishing date 2022-07-01T00:00:00Z
    Publisher Universidad Estatal a Distancia
    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.

  2. Article: On the adoption of stricter energy efficiency standards for residential air conditioners: Case study Guayaquil, Ecuador.

    Porras, Frank / Walter, Arnaldo / Soriano, Guillermo / Ramirez, Angel Diego

    Heliyon

    2023  Volume 9, Issue 3, Page(s) e13893

    Abstract: Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new ... ...

    Abstract Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new standards have been proposed in Ecuador. This study is the first assessment of stricter MEPS and estimation of benefits for the consumers and society of the residential sector in Guayaquil, Ecuador. The life cycle cost, payback time, net present value, electricity savings, and CO
    Language English
    Publishing date 2023-02-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e13893
    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: Extracellular symbiont colonizes insect during embryo development.

    González Porras, Miguel Ángel / Pons, Inès / García-Lozano, Marleny / Jagdale, Shounak / Emmerich, Christiane / Weiss, Benjamin / Salem, Hassan

    ISME communications

    2024  Volume 4, Issue 1, Page(s) ycae005

    Abstract: Insects typically acquire their beneficial microbes early in development. Endosymbionts housed intracellularly are commonly integrated during oogenesis or embryogenesis, whereas extracellular microbes are only known to be acquired after hatching by ... ...

    Abstract Insects typically acquire their beneficial microbes early in development. Endosymbionts housed intracellularly are commonly integrated during oogenesis or embryogenesis, whereas extracellular microbes are only known to be acquired after hatching by immature instars such as larvae or nymphs. Here, however, we report on an extracellular symbiont that colonizes its host during embryo development. Tortoise beetles (
    Language English
    Publishing date 2024-01-20
    Publishing country England
    Document type Journal Article
    ISSN 2730-6151
    ISSN (online) 2730-6151
    DOI 10.1093/ismeco/ycae005
    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.

    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: Short and long term corneal biomechanical analysis after overnight orthokeratology.

    Nieto-Bona, Amelia / Porras-Ángel, Paloma / Ayllón-Gordillo, Adela Elena / Carracedo, Gonzalo / Piñero, David P

    International journal of ophthalmology

    2022  Volume 15, Issue 7, Page(s) 1128–1134

    Abstract: Aim: To investigate the short and long term corneal biomechanical changes after overnight orthokeratology (OK) and compare them with those occurring in subjects not wearing contact lenses.: Methods: Retrospective case control study enrolling 54 ... ...

    Abstract Aim: To investigate the short and long term corneal biomechanical changes after overnight orthokeratology (OK) and compare them with those occurring in subjects not wearing contact lenses.
    Methods: Retrospective case control study enrolling 54 subjects that were divided into three groups 18 subjects each: control group (CG), short term (15 nights) OK (STOK) group, and long term (more than 1y of OK wear) OK (LTOK) group. Corneal biomechanics were characterized using the CorVis
    Results: Significantly lower AD1 and standard deviate on of Ambrosio's relational average thickness related to the horizontal profile (ARTh) values were found in the OK groups compared to CG (
    Conclusion: OK does not seem to alter significantly the corneal biomechanical properties, but special care should be taken when analyzing biomechanical parameters influenced by corneal thickness such as amplitude of deformation, ARTh or CBI, because they change significantly after treatment but mainly due to the reduction and pachymetric progression induced by the corneal molding secondary to OK treatment.
    Language English
    Publishing date 2022-07-18
    Publishing country China
    Document type Journal Article
    ZDB-ID 2663246-9
    ISSN 2227-4898 ; 2222-3959
    ISSN (online) 2227-4898
    ISSN 2222-3959
    DOI 10.18240/ijo.2022.07.13
    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.

  5. Article ; Online: Hypertension in oral lichen planus: A systematic review and meta-analysis.

    De Porras-Carrique, Teresa / Ramos-García, Pablo / González-Moles, Miguel Ángel

    Oral diseases

    2023  

    Abstract: Objectives: To perform a systematic review and meta-analysis in order to qualitatively and quantitatively evaluate the prevalence and magnitude of the association of hypertension in patients with oral lichen planus (OLP).: Methods: MEDLINE, Embase, ... ...

    Abstract Objectives: To perform a systematic review and meta-analysis in order to qualitatively and quantitatively evaluate the prevalence and magnitude of the association of hypertension in patients with oral lichen planus (OLP).
    Methods: MEDLINE, Embase, Scopus, and Web of Science databases were searched for studies published before May 2022, not restricted by publication language or date. The methodological quality and risk of bias of primary-level studies were critically assessed. Meta-analyses were performed, as well as meta-regression, stratified, sensitivity and small-study effects analyses, a Galbraith (radial) plot, and trial sequential analysis. Quality of evidence was evaluated using GRADE system.
    Results: 104 studies, including 16,587 patients, met the inclusion criteria. The results show that patients who suffer from OLP have a high prevalence of hypertension (PP = 24.17%, 95% CI = 21.45-27.00), with a low quality of evidence. A significant association between hypertension and oral lichen planus was also reported (OR = 1.28, 95% CI = 1.01-1.63, p = 0.04), showing a moderate quality of evidence.
    Conclusions: Patients with OLP could be at an increased risk of suffering from hypertension which is probably due to multiple factors. Healthcare practitioners involved in OLP management should be aware of this comorbidity in order to apply suitable measures and make referrals if hypertension is suspected, although further research is needed.
    Language English
    Publishing date 2023-09-19
    Publishing country Denmark
    Document type Journal Article ; Review
    ZDB-ID 1290529-x
    ISSN 1601-0825 ; 1354-523X
    ISSN (online) 1601-0825
    ISSN 1354-523X
    DOI 10.1111/odi.14727
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4427: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    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.

  6. Article ; Online: On the adoption of stricter energy efficiency standards for residential air conditioners

    Frank Porras / Arnaldo Walter / Guillermo Soriano / Angel Diego Ramirez

    Heliyon, Vol 9, Iss 3, Pp e13893- (2023)

    Case study Guayaquil, Ecuador

    2023  

    Abstract: Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new ... ...

    Abstract Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new standards have been proposed in Ecuador. This study is the first assessment of stricter MEPS and estimation of benefits for the consumers and society of the residential sector in Guayaquil, Ecuador. The life cycle cost, payback time, net present value, electricity savings, and CO2 mitigation are the outputs from the Policy Analysis Modeling System (PAMS) methodology followed. The analysis considers future economic scenarios until 2035. Also, a new engineering approach based on linear optimization defines ACs designs in compliance with the proposed MEPS at the lowest cost. Therefore we can avoid setting less ambitious energy-efficiency targets when efficiency options are limited in the market (this is the Ecuadorian case). The analyzed MEPS are those proposed by UNEP and by the renewal program of inefficient equipment of the Ecuadorian Government. Our estimates show that AC demand can reach 17.3% of the total residential electricity demand in the business-as-usual scenario and 21.4% in the high economic growth scenario until 2035.Furthermore, the results show a significant gap between the proposed MEPS which can be progressively bridged. The best standard from the consumer perspective is EER 4.3W/W, while from the societal perspective, it is EER 5.5W/W. Stricter MEPS can reduce AC electricity demand and energy-related emissions between 5.7% and 31%, depending on the selected scenario. Therefore, stricter MEPS for AC represents a cost-effective option to reduce energy needs and emissions from air conditioners and a concrete action to support the national energy efficiency policies and nationally determined contributions for the residential sector.
    Keywords Energy demand ; Residential air conditioning ; Minimum energy performance standards ; Energy efficiency regulation ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 690
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Elsevier
    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.

  7. Article ; Online: Hematopoietic and Mesenchymal Stromal Cells: New Immunological Roles During Fungal Infections.

    Rodriguez-Echeverri, Carolina / Bonilla-Porras, Angelica / Gonzalez, Angel

    Stem cells and development

    2021  Volume 30, Issue 21, Page(s) 1049–1055

    Abstract: Adult stem cells are characterized not only by their regenerative and immunomodulatory capacity but also by their therapeutic potential in various pathologies that include hematological malignancies, cancer, and autoimmune and inflammatory diseases, ... ...

    Abstract Adult stem cells are characterized not only by their regenerative and immunomodulatory capacity but also by their therapeutic potential in various pathologies that include hematological malignancies, cancer, and autoimmune and inflammatory diseases, among others. However, these cells seem to play a paradoxical role during the development of the immune response in some infectious diseases. As an example,
    MeSH term(s) Cell Differentiation ; Hematopoietic Stem Cell Transplantation ; Humans ; Mesenchymal Stem Cells/physiology ; Mycoses ; Paracoccidioides
    Language English
    Publishing date 2021-10-18
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2142214-X
    ISSN 1557-8534 ; 1547-3287
    ISSN (online) 1557-8534
    ISSN 1547-3287
    DOI 10.1089/scd.2021.0211
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 3616: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    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.

  8. Article ; Online: On the adoption of stricter energy efficiency standards for residential air conditioners: Case study Guayaquil, Ecuador

    Porras, Frank / Walter, Arnaldo / Soriano Sancha, Guillermo / Ramirez, Angel Diego

    Heliyon. 2023 Mar., v. 9, no. 3 p.e13893-

    2023  

    Abstract: Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new ... ...

    Abstract Space cooling is the fastest-growing energy end-use in buildings worldwide, and Ecuador is no exception. Nevertheless, the last update of the Minimum Energy Performance Standards (MEPS) for air conditioners was in 2013 (EER 3.2W/W); since then, no new standards have been proposed in Ecuador. This study is the first assessment of stricter MEPS and estimation of benefits for the consumers and society of the residential sector in Guayaquil, Ecuador. The life cycle cost, payback time, net present value, electricity savings, and CO₂ mitigation are the outputs from the Policy Analysis Modeling System (PAMS) methodology followed. The analysis considers future economic scenarios until 2035. Also, a new engineering approach based on linear optimization defines ACs designs in compliance with the proposed MEPS at the lowest cost. Therefore we can avoid setting less ambitious energy-efficiency targets when efficiency options are limited in the market (this is the Ecuadorian case). The analyzed MEPS are those proposed by UNEP and by the renewal program of inefficient equipment of the Ecuadorian Government. Our estimates show that AC demand can reach 17.3% of the total residential electricity demand in the business-as-usual scenario and 21.4% in the high economic growth scenario until 2035. Furthermore, the results show a significant gap between the proposed MEPS which can be progressively bridged. The best standard from the consumer perspective is EER 4.3W/W, while from the societal perspective, it is EER 5.5W/W. Stricter MEPS can reduce AC electricity demand and energy-related emissions between 5.7% and 31%, depending on the selected scenario. Therefore, stricter MEPS for AC represents a cost-effective option to reduce energy needs and emissions from air conditioners and a concrete action to support the national energy efficiency policies and nationally determined contributions for the residential sector.
    Keywords air ; carbon dioxide ; case studies ; compliance ; cooling ; cost effectiveness ; economic development ; electricity ; energy efficiency ; equipment ; life cycle costing ; markets ; policy analysis ; society ; Ecuador ; Energy demand ; Residential air conditioning ; Minimum energy performance standards ; Energy efficiency regulation
    Language English
    Dates of publication 2023-03
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Use and reproduction
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e13893
    Database NAL-Catalogue (AGRICOLA)

    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.

  9. Article ; Online: For the road: calibrated maternal investment in light of extracellular symbiont transmission.

    Pons, Inès / González Porras, Miguel Ángel / Breitenbach, Noa / Berger, Jürgen / Hipp, Katharina / Salem, Hassan

    Proceedings. Biological sciences

    2022  Volume 289, Issue 1973, Page(s) 20220386

    Abstract: Faithful transmission of beneficial symbionts is critical for the persistence of mutualisms. Many insect groups rely on extracellular routes that require microbial symbionts to survive outside the host during transfer. However, given a prolonged ... ...

    Abstract Faithful transmission of beneficial symbionts is critical for the persistence of mutualisms. Many insect groups rely on extracellular routes that require microbial symbionts to survive outside the host during transfer. However, given a prolonged aposymbiotic phase in offspring, how do mothers mitigate the risk of symbiont loss due to unsuccessful transmission? Here, we investigated symbiont regulation and reacquisition during extracellular transfer in the tortoise beetle,
    MeSH term(s) Animals ; Coleoptera ; Enterobacteriaceae ; Insecta ; Larva ; Symbiosis/physiology
    Language English
    Publishing date 2022-04-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2022.0386
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1364: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    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.

  10. Article ; Online: Ganglion impar block a matter of safety and efficacy.

    Rocha-Romero, Andrés / Plancarte-Sánchez, Ricardo / Juarez, Angel M / Hernández-Porras, Berenice-Carolina

    Regional anesthesia and pain medicine

    2022  Volume 48, Issue 5, Page(s) 234–235

    MeSH term(s) Humans ; Autonomic Nerve Block ; Ganglia, Sympathetic ; Sacrococcygeal Region
    Language English
    Publishing date 2022-12-16
    Publishing country England
    Document type Letter
    ZDB-ID 1425299-5
    ISSN 1532-8651 ; 1098-7339 ; 0146-521X
    ISSN (online) 1532-8651
    ISSN 1098-7339 ; 0146-521X
    DOI 10.1136/rapm-2022-104062
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 2399: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    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