Mercaderes, productos y embarcaciones, en las relaciones comerciales marítimas entre dos ciudades mediterraneas: Orán - Valencia (1600-1703)

Este trabajo nos introduce en lo que debió ser el comercio marítimo exportador oraní destinado a Valencia a lo largo del seiscientos y los tres primeros años del setecientos (1600-1703); teniendo como base documental la Serie Petge de Mar (perteneciente a la sección Maestre Racional; custodiada en el Archivo del Reino de Valencia), pudiendo conjeturar con relativa sencillez particularidades y asuntos heterogéneos de la actividad mercantil que se construyó entre ambas ciudades; Orán como remitente de productos de diversa índole y, Valencia, como destinataria y consumidora de ellos. Un mundo visto desde el observatorio que es el puerto-playa del Grao de Valencia, donde, a modo de calidoscopio, nos pondrá en contacto con un universo formado por diferentes modelos de embarcaciones y los patrones que las dirigían; artículos (tan importantes en este comercio como el trigo, los esclavos, las pieles o la cera) o a los hombres vinculados en este intercambio mercantil, tanto desde la vertiente exportadora como importadora; teniendo, siempre, como testigo el mar Mediterráne

Polymorphisms in ACE, ACE2, AGTR1 genes and severity of COVID-19 disease.

post-print651 K

Exploring Sustainable Transportation Development in Penang: Stakeholders' Perspectives of the Penang Transport Master Plan

Transportation is associated with all aspects of the nation’s growth. Nowadays, sustainability is one of the primary goals of many urban transportation systems. Over the past, many innovative initiatives have been undertaken to achieve a safe, efficient, and sustainable transport system. Besides, natural environment, social wellbeing, and economic prosperity depend on sound transportation systems. In Malaysia, Penang is well-known as an industrial and medical hub. In recent years, the state has experienced rapid economic growth. However, without proper development planning for the transportation system and infrastructure, the growth for sustainable development will be jeopardised. Heavy congestions due to increasing car dependency lead to psychological stress for the travellers. There are limited studies on sustainable transportations in Penang. Therefore, this study will explore the current transportation system in Penang, including the Penang Transport Master Plan. To address the aim of the research, we adopt an inductive cross-organisational semi-structured interview to explore the current level of sustainability within Penang transportation system. From this case study, the initial findings indicate Penang is in dire need for a robust, sustainable transport system which can include rail transports and integration of different modes of transport. Moreover, the result also shows that the behaviour and attitude of Penangites towards public transportation needs to be changed. This study suggests a series of long term and short term solutions to enhance the performance of the transportation system in Penang. The balance alignment between the economic, social and environmental themes of sustainability will overcome the issues faced by the current transportation system in Penang

Convergence of the Magnus series

The Magnus series is an infinite series which arises in the study of linear ordinary differential equations. If the series converges, then the matrix exponential of the sum equals the fundamental solution of the differential equation. The question considered in this paper is: When does the series converge? The main result establishes a sufficient condition for convergence, which improves on several earlier results.Comment: 11 pages; v2: added justification for conjecture, minor clarifications and correction

Processed Splitting Algorithms for Rigid-Body Molecular Dynamics Simulations

A new approach for integration of motion in many-body systems of interacting polyatomic molecules is proposed. It is based on splitting time propagation of pseudo-variables in a modified phase space, while the real translational and orientational coordinates are decoded by processing transformations. This allows to overcome the barrier on the order of precision of the integration at a given number of force-torque evaluations per time step. Testing in dynamics of water versus previous methods shows that the obtained algorithms significantly improve the accuracy of the simulations without extra computational costs.Comment: 6 pages, 2 figures, submitted to Physical Review

Rethinking social cognition in light of psychosis:Reciprocal implications for cognition and psychopathology

The positive symptoms of psychosis largely involve the experience of illusory social actors, and yet our current measures of social cognition, at best, only weakly predict their presence. We review evidence to suggest that the range of current approaches in social cognition is not sufficient to explain the fundamentally social nature of these experiences. We argue that social agent representation is an important organizing principle for understanding social cognition and that alterations in social agent representation may be a factor in the formation of delusions and hallucination in psychosis. We evaluate the feasibility of this approach in light of clinical and nonclinical studies, developmental research, cognitive anthropology, and comparative psychology. We conclude with recommendations for empirical testing of specific hypotheses and how studies of social cognition could more fully capture the extent of social reasoning and experience in both psychosis and more prosaic mental states