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Copyright of Cuadernos de Prehistoria y Arqueologia is the property of Cuadernos de Prehistoria y Arqueologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this work, a study was carried out on the opportunity that exists in Cuba to use deep sea water as a renewable alternative for air conditioning. It identified the main coastal areas where the required depth could be accessed at a rational distance from the shore and the possible users with the greatest potential for this type of technology. Each place had its own characteristics so, as an illustration, a specific area was chosen for a case study, with the aim of evaluating the energy, economic and environmental impact that could be achieved by replacing the current conventional systems of vapor compression air conditioning. Input variables and maps were obtained from publicly available information and the rationality thresholds of a given project were identified through exergoeconomic analysis. [ABSTRACT FROM AUTHOR]

Copyright of Revista Didasc@lia: Didáctica y Educación is the property of Universitaria de Las Tunas, Centro de Estudios de Didactica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The colorectal cancer (CRC) is one of the most aggressive and lethal in humans; its incidence is increasing due to poor eating habits and a sedentary lifestyle. Genomic alterations affecting various signaling pathways contribute to this cancer development. The transforming Growth Factor-β (TGF-β) is a multifunctional cytokine that controls multiple biological effects, including the maintenance of tissue homeostasis; however, alterations in its mechanisms of action favor the development of pathologies such as fibrosis and cancer. In early stages of CRC, TGF-β exerts tumor suppressive effects, whereas it promotes tumor progression in advanced stages, which is why it is considered an important therapeutic target. This review describes and analyzes the potential mechanisms of action and secretion of TGF-β in the tumor microenvironment of CRC, focusing on the knowledge generated using human CRC cell lines: SW480 (primary tumor) and SW620 (metastatic tumor), which come from the same patient and are characterized by being very agresive. These cells synthesize and secrete high levels of TGF-β, and express the main components of its signaling pathway, such as receptors and effectors, with the exception of SMAD4 protein. Furthermore, this review is also focused on describing the composition of the extracellular vesicles secreted by SW480 and SW620 cells, and their biological effects on various types of target cells; thus, we propose that these cells can provide a model to study the mechanisms of action and secretion of TGF-β cytokine in the later stages of CRC. [ABSTRACT FROM AUTHOR]

Copyright of Salud, Ciencia y Tecnología is the property of Fundacion Salud, Ciencia y Tecnologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of PODIUM- Revista de Ciencia y Tecnologia en la Cultura Física is the property of Universidad de Pinar del Rio and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos de Prehistoria y Arqueologia is the property of Cuadernos de Prehistoria y Arqueologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Dicenda: Cuadernos de Filologia Hispanica is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Zephyrus is the property of Ediciones Universidad de Salamanca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of EU-topías: A Journal on Interculturality, Communication & European Studies is the property of Universite de Geneve, Global Studies Intitute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Creneida is the property of Creneida and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Límite: Revista de Estudios Portugueses y de la Lusofonía is the property of Servicio de Publicaciones de la Universidad de Extremadura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Prosemas. Revista de Estudios Poéticos is the property of Universidad de Oviedo, Servicio de Publicaciones and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The cultivation of grapes (Vitis vinifera L.) is increasing in the dry tropics and the Andean valleys of Ecuador. However, the quality of the bunch and berries of the 'Marroo Seedless' variety grown in the Valleys needs to be improved to compete with imported fruit. To this end, three experiments were carried out on 8-year-old plants to evaluate the dose and times of application of GA3 (pre- and post-flowering), manual fruit thinning and branch ringing to increase bunch and berry size. A randomized complete block experimental design with four replicates was used. Bunch size and weight, number of berries per bunch and total soluble solids were evaluated. The results show that the application of GA3 in pre-flowering (10 ppm) increases bunch length and diameter, while the larger equatorial, polar diameter and berry weight was achieved with two applications of GA3 in post-flowering (40+20 ppm) or a single application with 100 ppm of GA3. These results show that the application of GA3 is a technology to improve the physical quality of the berries and grape bunches. [ABSTRACT FROM AUTHOR]

In this paper, the influence of the printing position and the infill density on the elastic modulus, yield strength, ultimate strength, and toughness are researched in specimens built by fused deposition modeling (FDM). ABS specimens were built in two positions.AT and XZ. in which the angle raster was -45°/45° and 0°/90°, respectively. These specimens were tested to find its mechanical properties, and the studied parameters' influence was demonstrated. The discoveries allowed to identify that the mechanical properties of the final product differ from the ones in the base material (filament). In conclusion, to make parts by FDM. it is important to establish the mechanical properties of the final product, because these can differ substantially from the filament properties. Therefore, depending on the final application of the part, it will be necessary to established fabrication criteria that allow to build parts with more lifespan for a given load. [ABSTRACT FROM AUTHOR]

Copyright of Cuadernos de Prehistoria y Arqueologia is the property of Cuadernos de Prehistoria y Arqueologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Studi e Materiali di Storia delle Religioni is the property of Editrice Morcelliana S.p.A. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of TURyDES is the property of TURYDES and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletin del Museo del Prado is the property of Museo Nacional del Prado and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of En la España Medieval is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Goya is the property of Fundacion Lazaro Galdiano and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Biologia Marina y Oceanografía (RBMO) is the property of Universidad de Valparaiso, Facultad de Ciencias del Mar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The recent decision of the European Commission in case Google Search brings to a close, with the imposition of a polemical sanction on Google for favouring its own comparison shopping services on the result pages of its general search engine, the first chapter of a long-drawn debate that touches upon de lege lata and de lege ferenda questions. Consequently, it constitutes an opportunity to start a sound discussion on the adjustments required by competition law of the European Union to be able to deal with the challenges of the digital environment and, at the same time, it puts back on the table the traditional controversy about the limits of intervention by competition authorities in the business models of dominant companies. Particularly interesting are, on the one hand, the market definition and the establishment of dominance and, on the other hand, the theory of harm underlying the finding of abuse. [ABSTRACT FROM AUTHOR]

Copyright of Cuadernos de Prehistoria y Arqueologia is the property of Cuadernos de Prehistoria y Arqueologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Reumatología Clínica is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronómica is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Signa is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Epos is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of RISTI: Iberian Journal on Information Systems & Technologies / Revista Ibérica de Sistemas e Tecnologias de Informação is the property of Associacao Iberica de Sistemas e Tecnologias de Informacao (AISTI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Polis (07176554) is the property of Polis - Revista Academica Universidad Bolivariana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Signa is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this work the values of chemical exergy of marabou wood and sugar cane bagasse are present. Also chemical exergy of char from pyrolysis of this biomass at different condition of thermoconversion process was calculated using the Szargut y Styrylska procedure. The exergy losses during pyrolysis process were present to compare different quality of biomass as fuel. [ABSTRACT FROM AUTHOR]

Kidney biopsy tends to be the final element in the analysis of alterations in renal function, due to its definitive nature. Its use has diagnostic and prognostic value, and is determinant in the evaluation and selection of therapeutic measures. Unfortunately, it is oftentimes limited to subespecialty referral hospitals, where it can occasionally be relegated due to diverse factors inherent to our health system; this in turn leads to detention in acquisition of diagnosis, with a potential adverse effect on the patient's prognosis. The following article presents our recent experience with percutaneous kidney biopsies in a General Hospital, where, in spite of several obstacles, we have managed to do the procedure with a practically nil index of complications, a faster diagnostic acquisition and an adequate therapeutic response in a number of patients. The object of the article is to demonstrate that the development of a percutaneous kidney biopsy program in a General Hospital is not impossible if there is adequate medical, technical and operational support. [ABSTRACT FROM AUTHOR]

In the present paper the results of a study on the state of the art in the electricity cogeneration with the use of the sugar cane biomass as fuel are shown. It has put on emphasis in to know the international situation and to value the used technologies, the investment cost, the powers and the parameters of the used cycle. Some considerations on the importance and advantages of the cogeneration in the sugar cane industry are given, as well as, the fact that a sucroenergetic industry is starting from the traditional sugar industry. [ABSTRACT FROM AUTHOR]

Cane sugar extraction is often over-estimated in prejudice of rational energy utilization when cane-milling process has to be optimized. On the other hand, nowadays the importance of accounting for energy produced and spent during the process has been continuously growing, in the so-called sucrose-energy scenario. In this paper a thermal and economic (exegetic as well as exergo-economic) approach of the milling--extraction stage of cane sugar production is presented. Such an approach is based on incremental coefficients that take into account the changes in extraction efficiency relative to corresponding energy consumption in milling. This allows the proposal of a basic optimization procedure for that stage, which considers both, often contradictory, aspects of the process. [ABSTRACT FROM AUTHOR]