138 research outputs found
La cuestión del relativismo cultural
La actualidad de la temática sobre el RELATIVISMO CULTURAL es obvia. En determinadas ciencias sociales funciona, de hecho, como un supuesto intocable. El presente artículo pretende cuestionar dicho presupuesto intentando delimitar el sentido aceptable en su aplicabilidad. A tal efecto hemos compulsado diversos puntos de vista de diferentes y relevantes expertos sobre esta cuestión: I. Kant, R. Dawkins, M. Weber, J. Habermas, R, Rorty, etc. Y, también, hemos dado nuestra opinión.The current importance of the subject matter on the cultural relativism is obvious. In certain social sciencies it works of fact as an untouchable supposition. The present article tries to question presupposed saying trying to delimit the aceptable sense in its aplicabilidad. To such an effect we have collated diverse points of view of different and relevant expert in this question: I. Kant, R. Dawkins, M. Weber, J. Habermas, R, Rorty, etc. And, also, we have given our opinion
Understanding Cost Dynamics of Serverless Computing: An Empirical Study
The advent of serverless computing has revolutionized the landscape of cloud
computing, offering a new paradigm that enables developers to focus solely on
their applications rather than managing and provisioning the underlying
infrastructure. These applications involve integrating individual functions
into a cohesive workflow for complex tasks. The pay-per-use model and
nontransparent reporting by cloud providers make it difficult to estimate
serverless costs, imped-ing informed business decisions. Existing research
studies on serverless compu-ting focus on performance optimization and state
management, both from empir-ical and technical perspectives. However, the
state-of-the-art shows a lack of em-pirical investigations on the understanding
of the cost dynamics of serverless computing over traditional cloud computing.
Therefore, this study delves into how organizations anticipate the costs of
adopting serverless. It also aims to com-prehend workload suitability and
identify best practices for cost optimization of serverless applications. To
this end, we conducted a qualitative (interviews) study with 15 experts from 8
companies involved in the migration and development of serverless systems. The
findings revealed that, while serverless computing is highly suitable for
unpredictable workloads, it may not be cost-effective for cer-tain high-scale
applications. The study also introduces a taxonomy for comparing the cost of
adopting serverless versus traditional cloud
A Retrospective View of Software Maintenance and Reengineering Research.
As a summary of past, current, and future trends in software maintenance and reengineering research, we give in this editorial a retrospective look from the past 14 years to now. We provide insight on how software maintenance has evolved and on the most important research topics presented in the series of the European Conference on Software Maintenance and Reengineering
Extending Software Architecting Processes with Decision-making Activities 1
Abstract. The traditional perspective on software architecture has paid much attention to architecting as a development process aimed at creating the architecture of a software system, as well as the documentation used to communicate the architecture to the stakeholders by means of several architectural views. Recently, the software architecture research community has faced the need to record, manage, and document the design decisions and the rationale that lead to such architecture. Because architectures are the result of a set of design decisions, this design rationale must be properly recorded and managed as a complementary process to the modelling activity. In this paper we detail different types of decision-making activities aimed at creating and using design decisions and how these can be supported with tool support
Assessment of the Refractive Index and Extinction Coefficient of Graphene-Poly(3-hexylthiophene) Nanocomposites
Poly(3-hexylthiophene) (P3HT) is one of the most attractive polymeric donor materials used in organic solar cells because of its high electrical conductivity and solubility in various solvents. However, its carrier mobility is low when compared to that of inorganic semiconductors; hence, the incorporation of appropriate nanomaterials to improve its electrical mobility and optical properties are pursued. In this work, a review of the changes in electrical conductivity, bandgap, hole collection properties and carrier mobility of P3HT when adding graphene (G) is presented. The main aim is to assess how the addition of different G contents influences the optical constants: refractive index (n) and extinction coefficient (k). The values of n and k as a function of the wavelength for six P3HT/G nanocomposites with G loadings in the range of 0.1-5 wt% have been fitted to two different models, Forouhi Bloomer and Cauchy, showing very good agreement between the experimental and the theoretical values. Furthermore, a rule of mixtures was successfully applied to calculate n using mass fraction instead of volume fraction, with errors lower than 6% for all the nanocomposites studied
ScrumBut as an Indicator of Process Debt
Peer reviewe
Application of graphene-related materials in organic solar cells
Graphene-related materials (GRMs) such as graphene quantum dots (GQDs), graphene oxide (GO), reduced graphene oxide (rGO), graphene nanoribbons (GNRs), and so forth have recently emerged as photovoltaic (PV) materials due to their nanodimensional structure and outstanding properties such as high electrical and thermal conductivity, large specific surface, and unique combination of mechanical strength and flexibility. They can be a crucial part of transparent electrodes, hole/electron transport materials, and active layers in organic solar cells (OSCs). Besides their role in charge extraction and transport, GRMs act as device protectors against environmental degradation through their compact bidimensional structure and offer good durability. This review briefly presents the synthesis methods of GRMs and describes the current progress in GRM-based OSCs. PV parameters (short circuit current, open circuit voltage, power conversion efficiency, and fill factor) are summarized and comparatively discussed for the different structures. The efficiency recently surpassed 15% for an OSC incorporating polymer-modified graphene as a transparent electrode. The long-term stability of OSCs incorporating GRMs is also discussed. Finally, conclusions and the outlook for future investigation into GRM-based devices for PVs are presented
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