Optimal synchronization of ABD networks

We present in this paper a simple and efficient synchronizer algorithm for Asynchonous Bounded Delay Networks. In these networks each processor has a local clock, and the message delay is bounded by a known constant. The algorithm improves on an earlier synchronizer for this network model, presented by Cou et al. Moreover, using a mathematical model for this type of synchronizer, we show that the round time of new synchronizer is optimal

N-representability problem within the framework of the contracted Schrödinger equation

A a procedure is proposed by which, in the course of an iterative solution of the second-order contracted Schrödinger equation, The N representability of the second-order reduced density matrix can be tested with increasing stringency. This procedure was suggested by an extended study of the G conditions and from the contraction into the two-electron space of an N-fermion relation, expressing in matrix form the antisymmetry and normalization properties of the N-electron wave function. Several relations are reported.This work was supported by de Dirección General de Investigación Científica y Técnica del Ministerio de Educación y Ciencia under Project nº PB96-0891.Peer Reviewe

Compact forms of reduced density matrices

10 págs.; 3 tabs.; PACS number~s!: 31.15.Hz, 31.10.1zThe necessary and sufficient minimum information carried by reduced density matrices (RDM) are discussed. A method is reported for obtaining the same information as a p-RDM although in compact form, from which all the redundant information is omitted. The algebra operations and basic properties of these compact-form matrices are obtained. ©2003 The American Physical SocietyWe are greatly indebted to the Spanish Ministerio de Educación, Cultura y Deporte for its support under Project No. BQU2000-1158Peer Reviewe

An all-in-one web tool to apply CTD quality control, format data, and generate metadata under SeaDataNet criteria

Professional data centres of the Pan-European region active in marine data collection, in particular National Oceanographic Data Centres (NODCs), routinely share diverse datasets through SeaDataNet, a distributed Marine Data Infrastructure. This network provides on-line integrated databases of standardized quality. Sharing marine data through SeaDataNet is an optimal way of ensuring FAIR principles: Findable, Accessible, Interoperable and Reusable. However, submission of data to this infrastructure demands a set of technical tasks that cover quality control processing, adoption of common vocabularies, implement file format standards and preparation of associated metadata. Although common software tools are made available to NODCs to facilitate data and metadata preparation (see https://www.seadatanet.org/Software) these tasks continuous to be complex and time-consuming. For example, the technician must use MIKADO software to generate INSPIRE-complaint metadata and adopt SeaDataNet Common Vocabularies; NEMO software to transform the original file to a common data transport format; and OCTOPUS software to check the compliance of a file. Additional software must be used to quality check and properly flag each individual record.En prens

Simplifying quality control and standardization of CTD data under SeaDataNet requirements

Sharing marine data through SeaDataNet infrastructure ensures preservation and promotes reusability. Submission of data to this infrastructure demands a set of technical tasks that cover quality control processing, adoption of common vocabularies, implement le format standards and preparation of associated metadata. Although common software tools are made available to Data Centres and/or End Users to facilitate data and metadata preparation, these tasks continuous to be complex and time-consuming. To speed-up this process, a Python-Flask web application is presented here to quality check and create metadata and data according to SeaDataNet requirements. The web tool focuses on CTD vertical pro les, although code could be easily adapted to process other type of records

Redesigning the paradigms of clinical practice for oral and maxillofacial surgery in the era of lockdown for covid-19: From tradition to telesemeiology

The rise of the COVID-19 pandemic has posed new challenges for health care institutions. Restrictions imposed by local governments worldwide have compromised the mobility of patients and decreased the number of physicians in hospitals. Additional requirements in terms of medical staff security further limited the physical contact of doctors with their patients, thereby questioning the traditional methods of clinical examination. Our institution has developed an organization model to translate the essential clinical services into virtual consultation rooms using a telemedicine interface which is commonly available to patients. We provide examples of clinical activity for a maxillofacial surgery department based on teleconsultation. Our experience is summarized and an organization model is drafted in which outpatient consultation offices are translated into virtual room environments. Clinical examples are provided, demonstrating how each subspecialty of oral and maxillofacial surgery can benefit from virtual examinations. The concept of \u201ctelesemeiology\u201d is introduced and a checklist is presented to guide clinicians to perform teleconsultations. This paper is intended to provide an organization model based on telemedicine for maxillofacial surgeons and aims to represent an aid for colleagues who are facing the pandemic in areas where lockdown limits the possibility of a physical examination