bluuebunny/crossref_metadata_2025 huggingface dataset:
Talent as Giftedness
Authors: Haroutounian Joanne
Published: November 2020

Wolfgang Amadeus Mozart began composing at the age of four. He toured as a prodigy for three years before the age of ten, astounding audiences with his ability to perform on the harpsichord, voice, organ, and violin. He would compose on sight in different styles and on different instruments. He could “most accurately name from a distance any notes that may be sounded for him either singly or in chords, on the clavier or on every imaginable instrument, including bells, glasses, and clocks.” When his father was recovering from an illness, eight-year-old Wolfgang was not allowed to play the piano. He filled his time by composing his first symphony (K.16) for all instruments of the orchestra. When we hear the word “gifted” in connection with music, the musical prodigy immediately comes to mind. The arguments of recognizing talent through performance, creative endeavors, or music aptitude tests seem incidental in comparison to the possibilities and accomplishments of the musical prodigy. There is no question that these young musicians show incredible levels of musical talent, often exhibiting musical capabilities equal to those of a highly trained adult. Mozart remains the preeminent example of the prodigy, described by his father and teacher as a “God-given miracle,” knowing “in his eighth year what one would expect from a man of forty. Indeed, only he who sees him can believe it.” A prodigy is a child who displays extraordinary talent at an early age. Prodigies occur most often in the field of music, exceeding the total of all other fields combined. Musical prodigies show outstanding abilities at a younger age than other prodigies, with some as young as three or four years old. The field of chess is a distant second place in number, with prodigious achievement often seen at five or six years of age. Relatively few prodigies are identified in the natural sciences, philosophy, dance, or plastic arts. Even the field of mathematics, whose young calculating wonders gain media recognition, have few true prodigies capable of original mathematical reasoning prior to their teen years. The literature offers differing opinions concerning age and prodigious talent.
Cirrus: The Future
Authors: Lynch David K. , Sassen Kenneth
Published: November 2020

The preceding 20 chapters reveal cirrus in considerable depth. Just as important, however, is what is not revealed. There are many things that we do not know or understand about cirrus. In this final chapter we present the outstanding scientific issues facing the cirrus research community. Our goal here is to produce a guide for students, scientists, policy makers, and funding organizations who wish to quickly grasp the direction and future needs of cirrus research. The impact of cirrus clouds on climate and how they interact with a climate perturbed by human enterprise is only dimly perceived. Do cirrus clouds, on a regional or global scale, act to cool or warm our planet? By reflecting incoming solar radiation to space, they can cool. Yet as an opacity source in the 10-μm window, they can radiate downward and warm the Earth. Which process dominates, and under what conditions does warming overtake cooling? Does the atmosphere react to cirrus globally or regionally (i.e., can cirrus increase pole-equator temperature differences or mute them)? Are there other mechanisms at work that defeat or amplify temperature changes by cirrus? We do not yet know. Programs such as SUCCESS, ICE, CRYSTAL, INCA, and FIRE/SHEBA will do much to answer questions about contrails and cirrus variability from one part of the world to another. They also will go a long way toward understanding one of the most difficult problems in meteorology: how convection and turbulence are related to cirrus formation and maintenance. In the meantime, existing capabilities are underused. For example, remote sensing techniques for estimating ice water path now exist but have not been assigned enough priority to achieve the necessary breakthroughs. Considerable progress could also be made in data analysis. As in other fields, analyzing existing data has a lower funding priority than designing and building new hardware and flight systems. Three fields of inquiry need more attention before we can claim a sufficient understanding of cirrus: physical properties, radiative properties, and modeling. These fields are interconnected in often subtle ways. Much of what we do not know about cirrus involves the range of properties and their evolution in time.
Sex and Gender
Authors: Rhen Turk , Crews David
Published: November 2020

In this chapter, sex will refer to the central process of meiosis and syngamy in eukaryotic organisms. Although some form of sexuality characterizes the life cycle of many eukaryotic organisms (i.e., virtually all fungi, plants, and animals), not all eukaryotes are sexual (e.g., many protists) (Margulis 1970, 1996; Bell 1982). Certain asexual protists, for example, only undergo mitosis and never alternate between haploid and diploid stages by way of meiosis and syngamy. Consequently, one of the most fundamental questions in biology is: Why do certain organisms go through meiosis and syngamy while others do not? Despite the apparent simplicity of this query, evolutionary biologists have not provided an entirely satisfactory explanation for the evolution of sex. Much of the difficulty arises because there appears to be no single answer. Moreover, sex is often confused with other associated phenomenon. For instance, one completely subordinate, but intimately related, occurrence is the evolution of gender in organisms that go through meiosis and syngamy. In his essay on the evolution of sex, Ghiselin (1988) aptly wrote, “Gender means the differentiation into males, females, and such alternatives as hermaphrodites. It also includes the differences between sperm and eggs. Such differences are important because they create the circumstances that make sex a puzzle” (p. 9). Yet he dismisses this subject in the next sentence: “Otherwise we are not much concerned about gender either.” Here we clarify the relationship between the evolution of sex and the evolution of gender. This is a critical concept to comprehend because gender differences are nearly universal in sexual organisms. We also discuss some of the major hypotheses proposed to explain why sex exists and recent empirical work that sheds light on the factors that may favor meiosis and syngamy, regardless of gender differences. In the remainder of the chapter, we present a more thorough analysis of the evolution of gender, including a discussion of what the fundamental gender difference is and why there are so many different mechanisms that produce more derived gender differences.
Epilogue
Authors: Bonabeau Eric , Dorigo Marco , Theraulaz Guy
Published: November 2020

After seven chapters of swarm-based approaches, where do we stand? First of all, it is clear that social insects and, more generally, natural systems, can bring much insight into the design of algorithms and artificial problem-solving systems. In particular, artificial swarm-intelligent systems are expected to exhibit the features that may have made social insects so successful in the biosphere: flexibility, robustness, decentralized control, and self-organization. The examples that have been described throughout this book provide illustrations of these features, either explicitly or implicitly. The swarm-based approach, therefore, looks promising, in face of a world that continually becomes more complex, dynamic, and overloaded with information than ever. There remain some issues, however, as to the application of swarm intelligence to solving problems. . . . 1. First, it would be very useful to define methodologies to “program” a swarm or multiagent system so that it performs a given task. There is a similarity here with the problem of training neural networks [167]: how can one tune interaction weights so that the network performs a given task, such as classification, recognition, etc. The fact that (potentially mobile) agents in a swarm can take actions asynchronously and at any spatial location generally makes the problem extremely hard. In order to solve this “inverse” problem and find the appropriate individual algorithm that generates the desired collective pattern, one can either systematically explore the behaviors of billions of different swarms, or search this huge space of possible swarms with some kind of cost function, assuming a reasonable continuity of the mapping from individual algorithms to collective productions. This latter solution can be based, for example, on artificial evolutionary techniques such as genetic algorithms [152, 171] if individual behavior is adequately coded and if a cost function can be defined. 2. Second, and perhaps even more fundamental than the issue of programming the system, is that of defining it: How complex should individual agents be? Should they be all identical? Should they have the ability to learn? Should they be able to make logical inferences? Should they be purely reactive? How local should their knowledge of the environment be?
Precipitation
Authors: Whiteman C. David
Published: November 2020

Precipitation is often the primary weather factor affecting outdoor activities. Precipitation that is of an unexpected type or intensity or that comes at an unexpected time or recurs more frequently than expected can disrupt both recreational and natural resource management plans. Heavy rain or snowfall can interfere with travel and threaten safety. Precipitation is water, whether in liquid or solid form, that falls from the atmosphere and reaches the ground. Table 8.1, adapted from Federal Meteorological Handbook No. 1 (National Weather Service, 1995), describes the different types of precipitation particles, collectively called hydrometeors. International guidelines for the reporting of precipitation do not include a category for sleet. Meteorologists in the United States use the term to describe tiny ice pellets that form when rain or partially melted snowflakes refreeze before reaching the ground. These particles bounce when they strike the ground and produce tapping sounds when they hit windows. Colloquial usage of the term, often used by the news media, coincides with British usage, which defines sleet as a mixture of rain and snow. Snow pellets, or graupel, are common in high mountain areas in summer. Graupel are low density particles (i.e., not solid ice) formed when a small ice particle (an ice crystal, snowflake, ice pellet, or small hailstone) falls through a cloud of supercooled (section 8.4) water droplets. The tiny droplets freeze as they impact the larger ice particle, building it into a rounded mass containing air inclusions (figure 8.1). This coating of granular ice particles is called rime, and the particle is said to be rimed. Graupel is usually produced in deep convective clouds that extend above the freezing level. Whereas graupel reaches the ground at high elevations, it usually melts to form rain before reaching the ground at lower elevations. As falling snow accumulates, a snowpack develops that can be described in terms of water content and density. The water content of snow is usually expressed as specific gravity, a number obtained in this application by dividing the water-depth equivalent of snow by the actual snow depth.
Bond Energies
Authors: Martinho Simões José A. , da Piedade Manuel Minas
Published: November 2020

Although standard enthalpies of formation provide information about the net stability of molecules and their transformations, they do not always indicate stability of individual bonds. This analysis normally involves parameters, loosely called “bond energies,” that reflect the amount of energy required to cleave chemical bonds. Bond energies are essential for understanding the nature of chemical bonds. They can be used to assess the results from quantum chemistry calculations (or from other, less sophisticated theoretical models) and thus support or oppose the descriptions of those bonds. Moreover, bond energy values also enable us to estimate the driving forces of chemical reactions by considering the strengths of all the bonds that are cleaved and formed. In fact, there are many reactions for which the standard enthalpies of formation of all reactants and products are not available (and cannot be easily estimated) but whose energetics can be predicted from the appropriate bond energies. In the previous chapters, we attempted to review all the important parameters in molecular energetics, but to avoid unnecessary distraction, we deliberately omitted bond energies from the discussion. The literature is plagued with a variety of concepts that fall into that designation but are not always synonymous. We can find names like bond strengths, bond enthalpies, bond energies, bond dissociation enthalpies, bond dissociation energies, bond disruption enthalpies, bond enthalpy terms, intrinsic bond energies, and symbols like D, D̄, 〈D〉, E, BDE, and so on. The meaning of these concepts it not always obvious and, unfortunately, some are occasionally misused. Now we look into each one of them. Consider a molecule AB, where A and B can be atoms or groups of atoms.
Equilibrium in Solution
Authors: Martinho Simões José A. , da Piedade Manuel Minas
Published: November 2020

A general discussion of the second and third law methods, including their advantages and limitations relative to first law techniques, was presented in sections 2.9 and 2.10. Now, after a summary of that introduction, we examine some examples that apply the second law method to the thermochemical study of reactions in solution. Recall that the third law method is only practical for reactions in the gas phase. Both the second and third law methods rely on the experimental determination of equilibrium constants. As shown in section 2.9, the equilibrium constant (K) of a reaction is defined in terms of the activities (ai) of reactants and products: where νi are the stoichiometric coefficients of the reaction. In most real situations, the activity values are difficult to obtain, so they are replaced by other quantities. In the case of reactions in solution, if the ideal model is assumed, we have seen that K is identified with Km, the equilibrium constant defined in terms of the molalities (mi) of reactants and products: mo being the standard molality, equal to 1 mol kg−1. Although molalities are simple experimental quantities (recall that the molality of a solute is given by the amount of substance dissolved in 1 kg of solvent) and have the additional advantage of being temperature-independent, most second law thermochemical data reported in the literature rely on equilibrium concentrations. This often stems from the fact that many analytical methods use laws that relate the measured physical parameters with concentrations, rather than molalities, as for example the Lambert-Beer law (see following discussion). As explained in section 2.9, the equilibrium constant defined in terms of concentrations (Kc) is related to Km by equation 14.3, which assumes that the solutes are present in very small amounts, so their concentrations (ci) are proportional to their molalities: mi = ci/ρ (ρ is the density of the solution).
Land Birds
Authors: Cody Martin L. , Velarde Enriqueta
Published: November 2020

Very few of the early scientific explorers in the Gulf of California had much to say about the land birds. There might be two reasons for this: first, the land birds in arid, desert regions are sparse and in general unbecoming, and second, the species encountered are by and large those seen in the much more accessible regions of southwestern North America. Chapter 1 introduced János Xántus, who is recognized as the pioneer ornithologist (or at least bird collector) in the cape area of Lower California, whose contributions (e.g., 1859, in which the first description of the Gray Thrasher, Toxostoma cinereum, was published) are appropriately commemorated in the Xantus Hummingbird, the most spectacular endemic on the peninsula. Lawrence (1860) first described the species as Amazilia xantusi (thence Hylocharis xantusii, and now Basilinna xantusii), and P. L. Sclater announced the discovery to Ibis readers in the same year. By the end of the nineteenth century, several ornithologists had collected in the southern peninsula and reported their findings (e.g., Baird 1870; Belding 1883; Bryant 1889; Ridgway 1896), but very little of this work referred to the islands in the gulf. Brewster’s (1902) report on the cape region avifauna was the most comprehensive of the earlier studies. Serious attention was first paid to the gulf island birds by Maillard (1923) and Townsend (1923), and the latter’s 1911 island-hopping trip in the Albatross served as a model for many similar expeditions later. The first distributional synthesis of their work, and especially that of Nelson (1921), Lamb (e.g., 1924), and Thayer (e.g., 1907), was published by Joseph Grinnell in 1928 in a monograph that is still the standard reference for the peninsula and gulf area. The last 50 years have seen little progress beyond the accumulation of further distributional records and the description of new subspecies (e.g., van Rossem 1929, 1932; Banks 1963a,b,c, 1964, 1969). The island birds remain rather poorly known; even species lists are likely to be incomplete, and ecological studies of the island populations have scarcely begun. In this chapter we report on the results largely of our own field work.
Ecological Conservation
Authors: Ezcurra Exequiel , Bourillón Luis
Published: November 2020

In 1973, George Lindsay, one of Baja California’s most eminent botanists, visited the islands of the Sea of Cortés together with Charles Lindbergh, Joseph Wood Krutch, and Kenneth Bechtel. Lindbergh, one of the most celebrated popular heroes of the twentieth century, had become by that time a committed conservationist, interested in the preservation of whales and in the conservation of nature at large. Joseph Wood Krutch, a naturalist, had written The Forgotten Peninsula, one of the first natural history descriptions of Baja California. George Lindsay had helped organize a series of scientific explorations into the Sea of Cortés and the peninsula of Baja California, first from the San Diego Natural History Museum, and later from the California Academy of Sciences (Banks 1962a,b; Lindsay 1962, 1964, 1966, 1970; Wiggins 1962). Kenneth Bechtel, a philanthropist from San Francisco, had given financial support to the Audubon Society in the 1950s and 1960s to study the sea bird rookery at Isla Rasa, which had been decreed a protected area by the Mexican government in 1962. Bechtel was interested in showing the Sea of Cortés to people who might be aroused by its astounding natural beauty and who might help to protect it. For this purpose, he organized the trip and invited Lindbergh to visit the region. The group flew a chartered Catalina flying-boat that allowed them to get to small and remote islands. They landed in the water and then piloted up to the beach so they could have shade under the wing. They visited many of the islands, starting from Consag north of Bahía de los Ángeles, and ending up in Espíritu Santo, east of the Bay of La Paz. It was a wonderful and memorable trip. Two or three months later, both Lindbergh and Lindsay traveled to Mexico City to watch the Mexican premiere of a documentary film on the Sea of Cortés by the California Academy of Sciences that Kenneth Bechtel had sponsored (see chap. 1). Taking advantage of the opportunity, and also of his immense popularity, Charles Lindbergh requested to see the president of Mexico, Luis Echeverría.
Sedimentological Archives in Lake Deposits
Authors: Cohen Andrew S.
Published: November 2020

Lake sediments are both repositories and sources of information about lake history. Depositional products tell us about the mechanisms of transport or accumulation of important geochemical and fossil archives, but important clues about that history are imbedded in the pattern of sedimentation itself. Geologists have recognized this fact since the earliest paleolimnological studies. Although he would certainly not have called himself a paleolimnologist, Charles Lyell’s (1830) classic studies and interpretation of the depositional environments of the Eocene Paris Basin set the tone for a time-honored approach to the study of ancient lake deposits. Lyell recognized that understanding the physical, chemical, and biological attributes of lakes that affect sedimentation, obtained through modern observation, must be applied to a four-dimensional (spatial plus time) analysis of sedimentary deposits and depositional history. However, not everything we need to know or every process we need to invoke will necessarily arise from our short-term observations of modern lakes. Events that are unlikely to occur in the course of a brief, several-year experiment or period of monitoring may become virtual certainties over the long history of some lakes and may leave a sedimentary archive of which we have little prior understanding from modern studies (Dott, 1983). Furthermore, the sedimentary response that we observe to some external forcing event may differ depending on the time scale over which we observe the response (Dearing, 1991). Consider a hill slope that is undergoing accelerated erosion, and that is producing an accumulation of sediment in a downstream channel as a result of land-clearing activities. Initially there may be no response in terms of sedimentation rate in the downstream lake; all of the sediment is being held in temporary storage. This process may occur over time scales of a few decades. At some later time a triggering event, perhaps a series of abnormally high rainfall and discharge years, causes this sediment to be released to the lake, now at an accelerated rate. This becomes a sedimentary response that the paleolimnologist can record. But, over geological time scales of millennia or longer, the original process may be modified, and new ones may gain in importance.
Geochemical Archives in Lake Deposits
Authors: Cohen Andrew S.
Published: November 2020

As we saw in chapter 4, the isotopic, elemental, or molecular constituents of a lake and its sediments reflect both external chemical inputs and the lake’s internal biogeochemical cycles. Lake sediment geochemistry is the product of interactions between these external inputs from watershed geology, groundwater, vegetation, and the airshed, and internal lake processes. Both external and internal inputs are heavily influenced by climate, and for the past few thousand years, human activities. With careful consideration of the various information filters affecting their records, geochemists can greatly broaden the scope of questions that can be addressed using paleolimnology. It is of critical importance when interpreting chemical data, that it be placed in the context of other sedimentological or paleontological archives. With modern, automated techniques, it is possible to amass large amounts of geochemical data in a relatively short time, data that can be compiled into deceptively ‘‘simple’’ geochemical profiles. Perhaps more than any other types of indicator, geochemical profiles are often interpreted as standalone records, without reference to petrographical, or even gross lithofacies information. Although it is tempting to read chemical stratigraphies as a direct record of inputs from a watershed or airshed, the signals are blurred by the whole host of messy, internal processes that we have already encountered in the hydroclimate filter: lag and residence time effects, reworking, particle and redox focusing, organismal uptake, and bioturbation. Lake deposits integrate local changes in source conditions, background sedimentation rates, and geochemical focusing processes (Engstrom and Swain, 1986). As a result, different locations within a lake may provide different geochemical histories, and interpretations of an integrated lake history must take into account these internal variations and their probable causes. This is always harder to do with paleolake deposits, where the original basin morphometry and hydrology is obscure. In this chapter we will also consider postdepositional information filters that affect geochemical archives, in particular bioturbation and diagenesis. Because many geochemical components of interest to paleolimnologists are bound to fine-grained particles, they can be readily mixed by bioturbation.
IVCF Rhetoric
Authors: Bramadat Paul A.
Published: November 2020

Anthropologist James Clifford asserts that “the return of rhetoric to an important place in many fields of study . . . has made possible a detailed anatomy of conventional expressive modes.” This new focus on rhetoric, Clifford continues, “is less about how to speak well than about how to speak at all, and to act meaningfully, in a world, of public cultural symbols” (1986:10). Even when groups use the same official language as the mainstream culture in which they exist, a distinctive pattern of communication usually emerges within each group. In various ways, this new pattern separates the group’s members from nonmembers. This pattern of speech is often unique in terms of its characteristic intonation (cf. Tedlock 1983), or a group may distinguish itself through the rhetorical medium of song by virtue of the use of archaic language, as in the case of Roman Catholic monastic chanting, or through the employment of slang, as in the case of rap music. As anthropologist James Fernandez has observed, a sensitivity to local figures of speech is necessary for any good ethnography (1974:119). The most obvious distinguishing feature of a group’s mode of communication is the array of insider’s words — for example, words such as “outing” among gays and lesbians, “fly” among young inner-city African American men, and “away” among residents of Prince Edward Island. These words are not always incomprehensible to people outside of the group; I am neither homosexual, African American, nor an Islander, but I know what many of these group-specific terms mean. However, these terms originate in local communities and have a special significance within them that casual observers cannot always fully appreciate. In this chapter, I introduce and interpret the IVCF’s insider words, phrases, and gestures and the broader rhetorical and social contexts that give these phenomena their meanings. My experiences with non-IVCF evangelicals lead me to believe that the majority of IVCF rhetoric is shared by believers in the wider evangelical community. Therefore, the strategies manifested in IVCF students’ uses of distinctive rhetoric may shed some light on the role of the same or similar terms and gestures in North American evangelicalism in general.
Impacts of El Niño’s Weather
Authors: Changnon Stanley A.
Published: November 2020

The societal, economic, and environmental consequences of weather events and climate conditions in the United States vary across the nation as a result of hot and dry conditions in one region and cold and wet conditions in others, or storms in one area and none in others. Thus, for any given period, such as a season or year, the weather-caused impacts in the United States reveal a mix of winners and losers. This was certainly true with the impacts resulting from El Niño 97-98. The official National Oceanic and Atmospheric Administration (NOAA) predictions issued in June 1997 calling for more storms in parts of the nation and heavy precipitation for the South and Far West (Climate Prediction Center, August 13,1997) created major fears about large economic and social losses. The warnings of FEMA and the ensuing media hype created a nationwide perception that all “El Niño weather” was going to be damaging. This fear is illustrated in the cartoon in Figure 6-1. For example, the Financial Times (July 28, 1997) tied the strong El Niño 97-98 conditions to the huge U.S. losses due to El Niño 1982-1983, with 161 killed and losses of $2.2 billion. Such connections and citations resulted from the fact that the official El Niño predictions and Federal Emergency Management Agency (FEMA) warnings were comparing the large El Niño 97-98 to the large 1982-1983 event (CPC, July 1997; FEMA, August 12, 1997). California newspapers also focused on the 1982-1983 losses in that state, which included fourteen killed and $265 million in damages (San Francisco Chronicle, August 14, 1997; Sacramento Bee, October 15, 1997). This helped create considerable concern and launched major mitigation endeavors in California where storm and rain predictions were ominous. The resulting 1997- 1998 mitigative activities in California reduced losses and were a major beneficial impact of the use of the long-range predictions of the Climate Prediction Center (CPC) and the warnings issued by FEMA that promoted mitigation actions.
Mirrored by Our Machines
Authors: Lienhard John H.
Published: November 2020

A mirror is a strange device. Stand in front of one and what comes back is not the you that you know. Rather, it is you, turned about and shown to you in a crazy literal way. You see the exact reverse of what others see when they look at you. If a photographer hands you a picture (taken in just the right way) of me standing before a mirror, you might have a hard time telling which is the reflection and which is the reality. Mirrors put us off balance by being both literal and subtle at the same time. When I call our technologies mirrors of ourselves I do not do so lightly. An alien looking at Earth for the first time would certainly seek to know us by gazing upon our reflection in our machines. Indeed, that is what anthropologists do when they examine the alien skeletons of our ancient forebears. Before anthropologists identify a particular primate skull as human, they search the area where they found it for evidence of toolmaking. The very word technology helps us understand this process. The Greek word Tεχνη (or techne) describes art and skill in making things. Tεχνη is the work of a sculptor, a stonemason, a composer, or an engineer. The suffix -ology means the study or the lore of something. Technology is the knowledge of making things. Some people have argued that we should not call our species Homo sapiens, “the wise ones,” but rather Homo technologies, “they who use Tεχνη,” for that is who we are. There is more to Tεχνη+ology than that. We freed our hands by walking on our hind legs before we took up toolmaking, and we made our earliest stone tools some 2.4 million years ago, while our skulls still accommodated a relatively small brain. Our capacity for thought began to grow as we created increasingly sophisticated implements. Technology has driven our brains. Our expanded physical capabilities made technology—extended toolmaking—inevitable. Technology has, in turn, expanded our minds and fed itself. At first, the notion that technology drives our minds may be surprising.
Upscaling, Computational Aspects, and Statistics of the Velocity Field
Authors: Rubin Yoram
Published: November 2020

This chapter deals with computing the velocity fields in heterogeneous media. This is a broad area, and we shall concentrate here on upscaling, on the spatial correlation pattern of the velocity, and on accuracy measures for techniques that compute velocity fields. Numerical simulations of velocity fields in heterogeneous media (Ababou et al., 1988, 1989; Bellin et al., 1992, 1994; Bellin and Rubin, 1996; Dykaar and Kitandis, 1992a,b; Hassan et al., 1998a,b; Salandin and Fiorotto, 1998) indicate that to capture accurately the effects of the spatial variability of the conductivity on the velocity field, the conductivity field should be modeled with high resolution. Techniques for generating highly detailed realizations of rock properties were reviewed earlier. Because of the huge level of detail included in these realizations, large-scale flow simulations can become computationally intensive. However, the need for fine detail varies over the aquifer. For example, a high level of detail is needed where the velocity field may vary rapidly, such as near wells, or over areas traversed by a contaminant plume, or for describing small-scale features which dominate the flow, such as high-conductivity channels. Coarsening the grid over areas where high resolution is unnecessary can reduce the computational effort. To be able to do that, a procedure is needed for assigning properties such as conductivity on a coarser scale which is more appropriate for simulation, while avoiding the loss of important details. Such a procedure is called upscaling (also scale-up). Upscaling assigns properties to blocks based on subgrid-scale heterogeneity. Upscaling leads to block-effective properties. Unlike effective properties, block-effective properties depend on the size of the block. In the limit of block dimensions much larger than the integral scale of the heterogeneity, the block-effective properties become equal to the media's effective properties. Unlike the case of effective conductivities, there is no consensus about the definition of block conductivity. For example, Rubin and Gomez-Hernandez (1990) defined the block conductivity as the coefficient of proportionality between the block-averaged flux and the gradient. Indelman and Dagan (1993a, b) stipulated that the block-effective conductivity should dissipate energy at a rate equal to the dissipation due to the small-scale heterogeneity.
Cities and Industry, Sewage and Waste
Authors: Cumbler John T.
Published: November 2020

In 1886, James Olcott, a farmer, “having been bred in the old anti-slavery reform,” gave a speech before the Agricultural Board of Connecticut. Recalling an earlier age, he encouraged his audience and “the common people” of Connecticut to “agitate, agitate,” in order to “cleanse” the state of the “social evil” of the pollution “by sewage from families and factories, festering in every pool, and mill pond—formerly trout holes.” Olcott reminded the farmers that “our best hold on polluted streams reform lies in the fact that the mischief has brought on us its calamitous consequences in this country with such rapidity that men and women too not very greyhaired and in full bodily and mental vigor can shut their eyes and review the whole matter from its beginning.” The history Olcott conjured up was the transformation of a clean, clear environment from “one of the most salubrious to one of the worst in the world.” The change was intimately linked to the rise of industrial cities like Bellows Falls, Chicopee, Hartford, New Britain, and Holyoke. Although Olcott’s remembrance of the past was partly colored by romantic notions of a purer age, the pollution he pointed to was indeed a problem of growing obviousness and concern. Reflecting the rapid change that had occurred over the last quarter century, the Massachusetts State Board of Health complained that with the growth of densely populated industrial cities, the old habits of disposing of waste contributed to “a large part of the filth in our state,” and that “often the water which is used for domestic purposes [is disposed of] by being thrown upon the surface of the ground, or collected in loosewalled vaults and cesspools,” which might have been acceptable in a rural community but caused concern in the new industrial cities. As the New Hampshire Board of Health noted in 1887, looking back over the last few decades, “when men mass, . . . the conditions at once become aggravated. . . . Man comes in with his artificial constructions and sweeps away much of this economy of nature.”
Neapolis
Authors: Fant Clyde E. , Reddish Mitchell G.
Published: November 2020

Neapolis, modern Kavala, still shows clearly why it was an obvious place for a port in ancient Greece. Nestled snugly about a half-moon bay, the city looks down upon a natural harbor that became the principal location in northern Macedonia for travel to and from Asia Minor. Kavala is the site of ancient Neapolis, the principal port of Philippi. Founded in the 7th century B.C.E. as a colony of Thasos, it was significant both for its port and for its commanding location along the coastal route from Thessalonica to Asia Minor. The fleet of Brutus was stationed at Neapolis at the time of the battle of Philippi. The Apostle Paul first set foot in Europe at Neapolis on his first missionary voyage. In later centuries the town was renamed Christoupolis, and it was burned by the Normans on their way to Constantinople in 1185. The city was under Ottoman rule until 1912, and on three separate occasions it has been under Bulgarian occupation, including more than two years during World War II. Virtually nothing remains of the ancient city. The impressive aqueduct on the hills above the city dates from the 16th century, when it was built by Sulëyman the Magnificent. In 1769 Mehmet Ali, pasha of Egypt, was born in Kavala. In Troas Paul had a vision in which he saw a man of Macedonia asking him to come to his country: “During the night Paul had a vision: there stood a man of Macedonia pleading with him and saying, ‘Come over to Macedonia and help us.’ When he had seen the vision, we immediately tried to cross over to Macedonia, being convinced that God had called us to proclaim the good news to them” (Acts 16:9–10). The rapid expansion of Christianity to the west largely was due to Paul’s decision to follow the prompting of this vision. This biblical statement is significant also because it is the first use of the first-person plural, we, in the Acts narrative, possibly indicating that the writer of Acts, traditionally regarded as Luke, now accompanies Paul on this portion of his travels.
Patmos
Authors: Fant Clyde E. , Reddish Mitchell G.
Published: November 2020

Famous for being the location for the writing of the book of Revelation (the Apocalypse), the island of Patmos is a jewel in the Aegean. This small island combines the charm and beauty of a typical Greek island with the tranquility and reverence of a sacred space. Visitors today might very well wish that they, like John, could be sentenced to exile on this island so rich with tradition, faith, and wonder. The northernmost island of the Dodecanese Islands (part of the Southern Sporades chain) in the Aegean Sea, Patmos, a part of the country of Greece, is 22 miles southwest of the island of Samos and about 38 miles from ancient Miletus on the mainland of Turkey. Patmos is a small, mountainous island, about 7 miles long and 3 miles wide, with a ragged coastline. The island has two narrow isthmuses that divide it into three parts. Primarily known for its association with the author of the New Testament book of Revelation, the island today displays the charm of a typical Greek island. The three main towns or villages on the island are Hora, Skala, and Kambos. Patmos is mentioned only briefly by ancient writers (Thucydides, Strabo, Pliny the Elder, and Tacitus), and little is known of its ancient history. The island was settled by the Dorians and later by the Ionians. Ancient ruins on the island attest to the inhabitation of the island during the Hellenistic period, a time when Patmos, along with the islands of Lipsos and Leros, belonged to the territory controlled by Miletus. These islands served as “buffer” islands, guarding and protecting the city of Miletus. Inscriptions from the island provide evidence of a temple of Artemis and a gymnasium on the island. Information about Patmos during the Roman period is scarce. Christian tradition, based on Revelation 1:9, claims Patmos as the site where John was exiled at the end of the 1st century C.E. by the Roman emperor Domitian. Whereas the Roman historian Tacitus does name three other islands in the Aegean (Donusa, Gyarus, and Amorgus) as islands where the Romans exiled or banished political prisoners, Patmos is never mentioned by ancient writers as a place of punishment.
Samothrace
Authors: Fant Clyde E. , Reddish Mitchell G.
Published: November 2020

Unfortunately, fascinating Samothrace does not receive the attention from foreign visitors it deserves. Except for the peak of the summer period, when many Greeks and a few others make mostly day trips to the island, Samothrace is largely ignored as a tourist destination. Weather in the winter can be harsh and windy, but otherwise the climate is inviting. Only a very few small hotels exist on the island (though there are many guest rooms available in private homes), and places to dine are limited, shopping even more so. But for an overnight visit, or perhaps a weekend, Samothrace is hard to beat for a sense of a Greek world that once was. The wild beauty that surrounds the once glorious buildings of the Sanctuary of the Great Gods, where the immortal Nike of Samothrace, now in the Louvre, once stood, is largely unmatched for a striking impression of Greek sanctuaries before they were surrounded by pavement and urban buildings. Do not miss this unique island if it is in reach of your journeys to Greece. The island of Samothrace (or Samothraki) can be reached easily by car ferry or hovercraft from Alexandroupolis, approximately 20 miles away. Although there is only one road that circles the island, an automobile or taxi is necessary to reach the site of the Great Sanctuary of the Gods, which lies 4 miles from the harbor at Kamariotissa. (Bus service is possible but infrequent.) If a taxi is used, be sure that a return is arranged; get a card from the driver with a phone number, and be aware that taxi service is not available on Sunday afternoon. The only telephone available is at the adjacent museum, and when it closes, if you are without transportation, be prepared to hike or use hitchhiking skills on the rare passing automobiles. Samothrace was known historically as the most remote of the Greek islands, which certainly is not true in modern times, when the nearby Thracian shore is a part of Greece. Likewise, the island is virtually equidistant from the Gallipoli peninsula of Turkey as well.
Ephesus
Authors: Fant Clyde E. , Reddish Mitchell G.
Published: November 2020

Often crowded with tourists, Ephesus is a must-see stop on any itinerary through western Turkey. Few archaeological sites in Turkey are as impressive as Ephesus. The excavated and reconstructed buildings bear eloquent testimony to this important and grand city of ancient Asia Minor. Strolling the streets of Ephesus, past fountains, statues, monuments, temples, a great library, residences, the agora, and the theater, the modern visitor can easily imagine the ancient city thronged with crowds engaged in the various activities of their society. Ephesus is situated near the Aegean coast, east and slightly north of the island of Samos and approximately 40 miles south of Izmir. The modern city of Selçuk is located in the general area of ancient Ephesus. In antiquity Ephesus was a major port city situated on the Aegean coast. Over the years alluvial deposits from the Cayster River, which ran near the city, filled in the harbor, and as a result, the site of the city today lies approximately 5 miles inland from the coast. In addition, Ephesus was the beginning point for the main highway that ran from the Aegean coast to the eastern part of Anatolia, which along with its harbor allowed the city to flourish as a commercial and transportation center. According to the geographer Strabo, the earliest inhabitants of Ephesus were a group of peoples called Leleges and Carians. Sometime around 1100–1000 B.C.E., a group of Ionian Greek colonists, supposedly led by the legendary Athenian prince Androclus, established a Greek settlement at the base of the northern slope of Panayïr Daǧï (Mt. Pion), one of three hills in the vicinity of ancient Ephesus. An ancient legend claims that Androclus chose this site on the basis of an oracle that said the city should be established at the site indicated by a fish and a wild boar. When Androclus and his companions landed on the coast of Asia Minor, Androclus joined some locals who were grilling fish. One of the fish, along with a hot coal, flipped off the grill.
Tarsus
Authors: Fant Clyde E. , Reddish Mitchell G.
Published: November 2020

Tarsus, best known as the home of the Apostle Paul, was the principal city of the eastern Cilician plain. A city renowned in antiquity as a center of culture and learning, Tarsus was visited by such figures as Julius Caesar, Mark Antony, and Cleopatra. Recent excavations have uncovered more remains of the city from Hellenistic and Roman times, including a paved, colonnaded street. Tarsus, the capital of the ancient province of Cilicia, is located near the eastern Mediterranean coast of Turkey. Situated today 10 miles inland from the sea, Tarsus served as a port city because the Cydnus River (today the Tarsus Çayï) passed through Tarsus on its way to the sea. The river was navigable by ships from the Mediterranean coast to Tarsus. Lake Rhegma, a lagoon near the Mediterranean coast into which the river flowed, served as the harbor for Tarsus. During the 6th century C.E., Emperor Justinian moved the course of the Cydnus River to the east of Tarsus, while leaving several minor branches of the river to flow through the city. The city of Tarsus belonged to the region of Asia Minor known as Cilicia. Ancient Cilicia was composed of two parts, Cilicia Pedias (“flat” or “smooth” Cilicia) and Cilicia Trachaei (“rough” Cilicia). Cilicia Pedias was a fertile plain in the eastern part of the region, whereas Cilicia Trachaei was a rugged, heavily forested mountainous region in the western part, dominated by the Taurus Mountains. Tarsus, the major city of Cilicia Pedias, was located just south of the Cilician Gates, the main pass through the Taurus Mountains. Through this pass ran the major road connecting Syria to Asia Minor, thus providing Tarsus access to trade and travel over land as well as over the Mediterranean. The earliest settlement at Tarsus was likely at Gözlü Kule, a tumulus on the southeast side of modern Tarsus. Excavations under the direction of Hetty Goldman of Princeton University before and immediately after World War II at the tumulus discovered evidence that the site was occupied from Neolithic to Islamic times. At least as early as the 3rd millennium B.C.E., a fortified town existed at the site of Tarsus.
The Paradox of the Rising Demand for Both a Better Environment and More Reliable Services
Authors: van Eeten Michel J. G. , Roe Emery
Published: November 2020

The examples go on and on: loading fish in trucks and on barges to enable them to swim downstream; opening a water gate and drowning endangered birds in one area, or closing the gate and risk burning out habitat of the same species someplace else; spending more than $400 million a year to protect a handful of endangered species in just one region of a country; hatching endangered fish that end up too fat or stick out like neon in the water once released; releasing salmon trained to come to the surface for hatchery food when what is actually dropping from the sky are the ducks ready to eat them; keeping water in a reservoir to save the fish there, thus sacrificing other fish downstream; building a 250-foot-wide, 300-foot-high, $80 million device to better regulate the water temperature for salmon eggs in just one reservoir; controlled burning for fuel load management in the forests that harms not only air quality but also chronically bleeds pollution into adjacent aquatic ecosystems; breeding the wild properties out of endangered fish and releasing them, thereby polluting the gene pool of river fish; fighting urbanization to protect a green and open area, thereby condemning that area to monotonous, industrial agriculture and worse; closing a gate or releasing reservoir water in reaction to a sample of fish coming downstream and triggering electrical blackouts or the most severe urban water quality crisis in decades; restoring natural floodplains, erasing some of the oldest, best preserved, and greenest cultural landscapes in a country; putting in place even more massive infrastructure to keep ecosystems natural, thereby imprisoning them in intensive care units for life; and more. For some readers, these examples may appear a mix of the ridiculous and the desperate. Yet they are prime examples of a hard paradox at work: how do you reconcile the public’s demand for a better environment which requires ecosystem improvements with their concurrent demand for reliable services from that environment, including clean air, water, and power?