Electromagnetic wave propagation in rain and polarization effects

This paper summarizes our study on microwave and millimeter-wave propagation in rain with special emphasis on the effects of polarization. Starting from a recount of our past findings, we will discuss developments with these and how they are connected with subsequent research

A new mission: Mainstreaming climate adaptation in the US Department of Defense

The United States Department of Defense (DoD) recognizes growing climate risks across its responsibilities as land manager, operator of hundreds of installations, and in its core mission to protect national security. However, DoD climate risk reduction is complicated by frequent leadership turnover among base commanders, which encourages focus on near-term challenges, and changing US government priorities that downplay climate risk. We used risk-based deliberation, through workshops, with climate scenario-based fire and flood impact modeling to evaluate risk and adaptation opportunities at bases in the southwestern United States. We found that success in working with Defense installations hinges on linking risks of increasing climate-related impacts to DoD's ability to achieve its mission objectives at installations. Workshop participants offered insights into barriers to adaptation, including access to decision-makers in a hierarchical organization, leadership focus on near-term challenges, insufficient training or capacity to integrate climate information into short and long-term decisions, and rapid turnover in leadership. We also found opportunities for mainstreaming climate risk management into DoD activities, including emphasizing risks to DoD's mission, opportunities to form symbiotic partnerships with external partners, and the potential for standardized procedures for considering physical climate risks that could be integrated across the DoD to achieve longer-term solutions to climate change challenges. © 2021 The AuthorsOpen access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Context-aware compliance checking

Organizations face more and more the burden to show that their business is compliant with respect to many different boundaries. The activity of compliance checking is commonly referred to as auditing. As information systems supporting the organization’s business record their usage, process mining techniques such as conformance checking offer the auditor novel tools to automate the auditing activity. However, these techniques tend to look at process instances (i.e., cases) in isolation, whereas many compliance rules can only be evaluated when considering interactions between cases and contextual information. For example, a rule like a paper should not be reviewed by a reviewer that has been a co-author cannot be checked without considering the corresponding context (i.e., other papers, other issues, other journals, etc.). To check such compliance rules, we link event logs to the context. Events modify a pre-existing context and constraints can be checked on the resulting context. The approach has been implemented in ProM. The resulting context is represented as an ontology, and the semantic web rule language is used to formalize constraints

Comunicação intercultural em uma empresa transnacional: a visão dos Brasileiros sobre sua comunicação com os norte-americanos

Cada vez mais a globalização leva as empresas a se comunicarem com culturas diferentes das suas em operações interdependentes. Desta forma, torna-se importante detectar e analisar questões a serem compreendidas pelas organizações na sua comunicação com outras culturas; mais especificamente, aspectos que podem resultar em uma interpretação equivocada das mensagens enviadas de uma cultura para a outra. Para compreender melhor essa questão, foram analisadas as duas atividades simbólicas destacadas por Porter e Samovar (1995) no processo de comunicação verbal - o uso de linguagem e a atividade interna de pensar - à luz das dimensões culturais propostas por Hofstede (1980), Trompenaars (1995) e Hall (1984). Foi realizada uma pesquisa de campo qualitativa de caráter descritivo por meio de entrevistas semiestruturadas na subsidiária localizada na cidade do Rio de Janeiro de uma empresa transnacional de origem norte-americana que atua no setor de telecomunicações. Durante as entrevistas com o diretor e dois gerentes, foram enfatizados alguns pontos negativos na interação entre as duas culturas, mas também foi apontada a possibilidade de captar sinergias da diversidade cultural, como sugerem os bons resultados do estilo relacional dos brasileiros com os clientes e o efeito motivador, nos brasileiros, do tratamento mais igualitário adotado pelos chefes americanos