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An interesting fact in nature is that if we observe agents (neurons, particles, animals, humans) behaving,or more precisely moving, inside their environment, we can recognize – tough at different space or time scales – very specific patterns. The existence of those patterns is quite obvious, since not all things in nature behave totally at random, especially if we take into account thinking species like human beings. On the contrary, their analysis is quite challenging. Indeed, during the years we can find in the literature a lot of efforts to understand the behavior of complex systems through mathematical laws.

Mathematics --- Research. --- Patterns. --- Mathematical

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The aim of this book is to highlight up to date exploited technologies and approaches in terms of antenna designs and requirements. In this regard, this book targets a broad range of subjects, including the microstrip antenna and the dipole and printed monopole antenna. The varieties of antenna designs, along with several different approaches to improve their overall performance, have given this book a great value, in which makes this book is deemed as a good reference for practicing engineers and under/postgraduate students working in this field. The key technology trends in antenna design as part of the mobile communication evolution have mainly focused on multiband, wideband, and MIMO antennas, and all have been clearly presented, studied and implemented within this book. The forthcoming 5G systems consider a truly mobile multimedia platform that constitutes a converged networking arena that not only includes legacy heterogeneous mobile networks but advanced radio interfaces and the possibility to operate at mm wave frequencies to capitalize on the large swathes of available bandwidth. This provides the impetus for a new breed of antenna design that, in principle, should be multimode in nature, energy efficient, and, above all, able to operate at the mm wave band, placing new design drivers on the antenna design. Thus, this book proposes to investigate advanced 5G antennas for heterogeneous applications that can operate in the range of 5G spectrums and to meet the essential requirements of 5G systems such as low latency, large bandwidth, and high gains and efficiencies.

Antenna radiation patterns.

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Repetitive patterns (Decorative arts)

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In Ancient Households of the Americas archaeologists investigate the fundamental role of household production in ancient, colonial, and contemporary households. Several different cultures-Iroquois, Coosa, Anasazi, Hohokam, San Agustín, Wankarani, Formative Gulf Coast Mexico, and Formative, Classic, Colonial, and contemporary Maya-are analyzed through the lens of household archaeology in concrete, data-driven case studies. The text is divided into three sections: Section I examines the spatial and social organization and context of household production; Section II looks at the role and results of households as primary producers; and Section III investigates the role of, and interplay among, households in their greater political and socioeconomic communities. In the past few decades, household archaeology has made substantial contributions to our understanding and explanation of the past through the documentation of the household as a social unit-whether small or large, rural or urban, commoner or elite. These case studies from a broad swath of the Americas make Ancient Households of the Americas extremely valuable for continuing the comparative interdisciplinary study of households.

Indians --- Land settlement patterns. --- Antiquities

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Beginning about A.D. 1250, the Zuni area of New Mexico witnessed a massive population aggregation in which the inhabitants of hundreds of widely dispersed villages relocated to a small number of large, architecturally planned pueblos. Over the next century, twenty-seven of these pueblos were constructed, occupied briefly, and then abandoned. Another dramatic settlement shift occurred about A.D. 1400, when the locus of population moved west to the "Cities of Cibola" discovered by Coronado in 1540. Keith W. Kintigh demonstrates how changing agricultural strategies and developing mechanisms of social integration contributed to these population shifts. In particular, he argues that occupants of the earliest large pueblos relied on runoff agriculture, but that gradually spring-and river-fed irrigation systems were adopted. Resultant strengthening of the mechanisms of social integration allowed the increased occupational stability of the protohistorical Zuni towns.

Land settlement patterns. --- Patterns, Land settlement --- Settlement patterns --- Human geography --- Land settlement --- Society & culture: general