Oblique extraordinary mode propagation in the magnetospheric plasma

An approximate formula is obtained for the extraordinary mode refractive index for the case of almost perpendicular propagation in a hot anisotropic plasma with a loss cone. It is pointed out that the influence of finite electron temperature on perpendicular wave propagation is most significant when the wave frequency is close to the upper hybrid frequency and the second harmonic of the electron gyrofrequency. For oblique propagation this influence is significant when the wave frequency is close to the upper hybrid frequency and the first two harmonics of the electron gyrofrequency.Extraordinary mode energy focusing in the direction perpendicular to the magnetic field is considered for different plasma parameters. In particular, it is stressed that at frequencies close to the first harmonic of the electron gyrofrequency, this focusing occurs even for low temperature plasma, although this result does not originate from cold plasma theory.Extraordinary mode energy trapping in the vicinity of the equatorial plane of the magnetosphere is considered with a simple model plasma distribution function. It is emphasised that this kind of trapping provides a convincing explanation for Auroral Kilometric Radiation (AKR) observations at frequencies close to the second harmonic of the electron gyrofrequency.     

Partners Connection Process and Spatial Effects: New Insights from a Comparative Inter-Organizational Partnerships Analysis

This article attempts to give new explanations of the spatial patterns of collaborations focusing on the partners' connection process. Taking into account actors are embedded in an historical, interpersonal and institutional space, we first consider organizations can construct a new collaboration or renew an old one when they decide to build a research project with a partner. Then, going back to the moment when they initially connect with their partners through the analysis of the genesis of collaborations, we assume that they can turn to their interpersonal ties or to coordination resources. This process of connection may influence the spatial dimensions of collaborations regarding notably the literature linking the use of interpersonal ties and the spatial proximity effects observed in innovation activities. We test empirically these theoretical propositions through the collection of individual data about more than 200 histories of inter-company (IC) and science-industry (SI) partnerships. The qualitative and quantitative treatments of these data reveal the way partners connect each other and the spatial patterns of collaborations are significantly dependent on the nature of the partnerships. A strong regularity is nevertheless highlighted: for both partnerships (IC and SI ones), actors renewed prior collaborations in 57% of the total of studied partnerships.     

A geometric morphometric relationship predicts stone flake shape and size variability

The archaeological record represents a window onto the complex relationship between stone artefact variance and hominin behaviour. Differences in the shapes and sizes of stone flakes—the most abundant remains of past behaviours for much of human evolutionary history—may be underpinned by variation in a range of different environmental and behavioural factors. Controlled flake production experiments have drawn inferences between flake platform preparation behaviours, which have thus far been approximated by linear measurements, and different aspects of overall stone flake variability (Dibble and Rezek J Archaeol Sci 36:1945–1954, 2009; Lin et al. Am Antiq 724–745, 2013; Magnani et al. J Archaeol Sci 46:37–49, 2014; Rezek et al. J Archaeol Sci 38:1346–1359, 2011). However, when the results are applied to archaeological assemblages, there remains a substantial amount of unexplained variability. It is unclear whether this disparity between explanatory models and archaeological data is a result of measurement error on certain key variables, whether traditional analyses are somehow a general limiting factor, or whether there are additional flake shape and size drivers that remain unaccounted for. To try and circumvent these issues, here, we describe a shape analysis approach to assessing stone flake variability including a newly developed three-dimensional geometric morphometric method (‘3DGM’). We use 3DGM to demonstrate that a relationship between platform and flake body governs flake shape and size variability. Contingently, we show that by using this 3DGM approach, we can use flake platform attributes to both (1) make fairly accurate stone flake size predictions and (2) make relatively detailed predictions of stone flake shape. Whether conscious or instinctive, an understanding of this geometric relationship would have been critical to past knappers effectively controlling the production of desired stone flakes. However, despite being able to holistically and accurately incorporate three-dimensional flake variance into our analyses, the behavioural drivers of this variance remain elusive.     

Neoliberalism,governance, and the geographies of conditional cash transfers

This article considers the geographic effects of conditional cash transfer programs (CCTs), focusing specifically on the ways they rework space, modes of production, and State/society relationships. While CCTs appear linked to neoliberal development and biopolitical governance regimes (viz., governmentality), this article highlights the counterintuitive reasons for why CCTs sometimes fail to meet these broader State objectives. More directly, despite obvious tactics of Statecraft behind CCT initiatives, the effects of these programs can in fact undermine their intended governance outcomes. Drawing from case study research in rural northeastern Brazil – where an overwhelming majority of residents receive Bolsa Família CCT benefits – this article examines the political geographic changes induced by Bolsa Família in a region that has until recently seen very little State presence. By engaging a geographic perspective that focuses on the political and economic effects of CCT programs, this article sheds new light on processes of governance and development in a host of countries throughout the Global South.     

Pig exploitation in the southern Kanto region,Japan

This study investigates changes in past human and animal relationships by focusing on pig (Sus scrofa) remains excavated from archaeological sites in southern Kanto, Japan. Pigs and humans have had a close relationship since prehistoric times and the process of change in this relationship, including possible domestication, is one of the major issues in Japanese zooarchaeology. This study attempts to gain a better understanding of the nature of past interaction between humans and pigs by investigating their relative importance compared with other vertebrate remains, kill‐off patterns, and changes in their size and shape at these sites. The materials used for this study date from the Earliest to Final Jomon (ca. 10,000–2500 BP), Yayoi (ca. 2500–1700 BP) and Kofun (ca. 1700–1300 BP) periods. The relative proportions of pigs were calculated to show the overall trend of pig exploitation in each site. Age at death was obtained based on the state of tooth eruption. Bucco‐lingual crown measurements were taken on the third and fourth premolars and on each cusp of the first and second molars of the mandible, and the logarithmic ratio technique was then applied to these data. The age structure of Sus varies between different sites in the Jomon Period, and significant changes were observed in the Yayoi and Kofun Periods. A decrease in the relative proportion of pigs in the faunal assemblages was observed from Jomon to Kofun. Three major differences were observed in the size of pigs. The overall size of pigs significantly increased from Early to Middle Jomon, whilst a decrease in size occurred in the Yayoi Period. Finally, overall size increased significantly during the Kofun Period. Together with the archaeological evidence—such as the ritual burial of pigs accompanying human burial—we suggest that the interaction between pigs and humans became gradually stronger at some sites during the Late Jomon Period, and the relationship intensified in the Yayoi Period. Copyright © 2006 John Wiley & Sons, Ltd.     

Complexity,Capacity, and Budget Punctuations

The budgeting literature has long focused on “institutional friction” as a cause of ubiquitous punctuated equilibrium (PE) findings. A recent wave of scholarship looks to identify specific institutional mechanisms that affect the number of punctuations in policy outputs. We contribute to this growing body of research by focusing on the complexity of the institutional environment surrounding a policy area as well as that of the government as a whole. These factors have opposite effects: the more complex a policy area, the greater the likelihood of extreme spending changes. But, higher institutional capacity in general leads to greater stability. To test these ideas, we develop a novel index of budgetary change that balances the conceptual importance of extreme changes while analyzing the entire distribution of budget changes, not only the tails. In addition, we also demonstrate that findings are robust to a number of important distinctions, such as between series associated with slowly moving demographic trends or quickly moving stochastic events. We, therefore, demonstrate the robustness of important findings from the established literature, add a new measure of the dependent variable, and push the literature forward with a new focus on issue complexity and institutional capacity.     

Size prediction in archaeomalacology: the Common Mussel,Mytilus edulis L., as an example

There are numerous size prediction formulae in archaeomalacology but (like almost all zooarchaeological formulae) only a few account for allometric growth (shape change with size change, which is almost universal in complex animals) and employ the standard methods developed by statisticians to ensure reliable predictions. A general technique for generating formulae that predict organism size from dimensions of their archaeological remains is presented, using an organism that is badly preserved archaeologically (the Common Mussel Mytilus edulis). Allometric growth is fully accommodated, and standard statistical methods and software are used. Several dimensions can be used for prediction, and poor predictors are identified and discarded. Predictions can be tested for consistency between heterogeneous conditions, for statistical soundness, and whether prediction errors are within tolerable limits.     

Morphometric Assessment of the Appendicular Skeleton in the New Kingdom and Napatan Components from Tombos in Upper Nubia

Due to its critical location on the Nile River controlling trade from the south, Tombos is an important ancient site to explore the interaction between Egyptians and Nubians. To assess population continuity at Tombos through sociopolitical transitions, the appendicular skeleton of people from the New Kingdom and Napatan periods was examined. Using morphometric and statistical analyses, body proportions on the upper and lower limbs were studied on each element through size (i.e. length, breadth, and width) and shape (bone's measurements with size removed). The Napatan component (when Nubia ruled Egypt) was consistently larger in size than the earlier New Kingdom component (when Egypt ruled Nubia), with little variation in shape. More variability in both size and shape was observed in males. When compared with other Nubians (C‐group and Kerma) and Egyptians (Middle and New Kingdom), the Tombos Napatan sample (males and females) was generally larger, whereas the Tombos New Kingdom sample was generally smaller than other Nubians and similar in size to Egyptians. Some of the variability between the Tombos samples may be the result of gene flow, or rather changes in migration to the area through time and sociopolitics. However, the numerous differences in size with few in shape provide more support for an environmental explanation since size is more susceptible to nutritional stress, disease, and physical activity. These results show that the people of Tombos underwent biological alterations during these major sociopolitical changes from Egyptian rule over Nubia during the New Kingdom to Nubia ruling Egypt during the Napatan period. This study also demonstrates that morphometric analyses of multiple bones and measurements are an important supplement to other bioarchaeological analyses to provide a broader of view of physical changes that occur over time. Copyright © 2014 John Wiley & Sons, Ltd.     

NISP, Bone Fragmentation, and the Measurement of Taxonomic Abundance

Zooarchaeologists have long recognized that the number of identified specimens (NISP) is dependent on the degree to which bones are fragmented, but attempts are rarely made to control for the effects of fragmentation on NISP. This paper provides insight into those effects by presenting both a formal model of the relationship between NISP and fragmentation and experimental data on that relationship. The experimental data have practical implications regarding the effectiveness of potential measures of bone fragmentation, suggesting that specimen size—which can be determined easily through digital image analysis—is more useful than other variables that have been or might be used as fragmentation measures.     

Early hominid hunting,butchering, and carcass-processing behaviors: Approaches to the fossil record

A major aim of paleoanthropology is to learn what ancient behaviors were related to the acquisition, processing, and consumption of meat and when these behaviors arose. For this reason, studies focusing on purported early hominid hunting and butchery sites are important if rigorous criteria for recognizing such sites are used. Different criteria currently used as evidence of hominid involvement with ancient bones are reviewed and it is concluded that the presence of cutmarks, verified by scanning electron microscope (SEM) inspection, is the most reliable. Successful application of this criterion depends upon a thorough knowledge of the normal variations in microscopic morphology of different types of marks that are found on bones. Therefore, variations in microscopic and gross morphology within and among a large sample of known stone tool cutmarks, carnivore tooth scratches, and rodent gnawing marks are documented. The effects of sedimentary abrasion, as caused by fluvial transport of bones, are also presented. Guidelines are presented for using microscopic criteria to identify unknown marks on fossils and possible applications of this approach are discussed. Further, it is suggested that evidence of hominid carcass-processing activities can be placed into one of three ranked categories of certainty according to the type of data used. Explicitly stating the category and type of evidence used to deduce hominid activities, and by extension to define site types (i.e., butchery, kill, base camp), may improve the clarity of hypotheses about and interpretations of early hominid behaviors.     

Travelling ionospheric disturbances and the effectiveness of powerful HF transmitters in ionospheric modification and radio location of the Moon

Using ray tracing we investigate, on a qualitative level and in the linear approximation, the effects of medium-scale travelling ionospheric disturbances (MS TIDs) arising when powerful HF radio transmitters are operated in conjunction with antenna arrays designed for ionospheric modification (heating) and for radio location of the Moon. It is shown that the HF radio wave focusing effect, arising during the movement of the MS TIDs, can give rise to a strong inhomogeneous and nonstationary modulation of the space-time distribution of the field intensity of a powerful radio transmitter both at heights near the reflection region (in heating experiments) and at the exit from the ionosphere (in radio location of the Moon). The excess of intensity over an unperturbed value for typical parameters of MS TIDs in experiments on ionospheric modification can reach values of hundreds of percent: a ‘spot’ of increased intensity of the wave field can have the size of about 1–10 km, and can move with a velocity close to the MS TID phase velocity.In the case of lunar radio location, the inhomogeneity and nonstationarity of the wave field intensity distribution at the exit from the ionosphere substantially complicates the evaluation of the corresponding distribution on the Moon's surface and the interpretation of the Moon-reflected radio signal characteristics.     

Managing,Valuing, and Protecting Heritage Resources in the Twenty-First Century: Peatland Archaeology,the Ecosystem Services Framework,and the Kyoto Protocol

Abstract

This paper argues that the development of the Ecosystem Services framework, which has recently emerged as an internationally recognized framework for valuing ‘the ‘natural capital’ of ecosystems, presents a number of opportunities for heritage management and the archaeological record, arguing that the inclusion of archaeological and palaeoenvironmental ‘value’ within this framework presents an opportunity to incorporate heritage alongside a range of other critical ‘services’. It presents a short case study focusing on the problems facing the preservation of peatland archaeological sites and deposits in situ alongside developments within peatland conservation and restoration initiatives partly driven by the ability of healthy, functioning peatlands to sequester carbon and hence mitigate climate change. It is argued that this drive towards peatland re-wetting may bring both positive benefits and opportunities for heritage management but also presents a number of practical issues, which now require active engagement from the archaeological community.     

JOB CHAINS AND WAGE CURVES: WORKER MOBILITY AND MARSHALLIAN SURPLUSES IN EVALUATING REGIONAL EMPLOYMENT GROWTH*

ABSTRACT In theory, new regional jobs yield two distinct sources of welfare gains to workers: (1) mobility gains achieved by workers as they move up job chains and (2) traditional Marshallian surpluses enjoyed by all workers as labor markets tighten. In the past, we have argued that the second channel is likely to be small relative to the first. This paper integrates a chain model (using PSID job change data) with a modified‐Marshallian model based on “wage curves” (estimated from CPS data) to formalize and test that argument. High wage jobs with modest wage–unemployment elasticities show Marshallian effects only 10 percent to 20 percent the size of mobility effects. Low wage jobs with somewhat higher elasticities show Marshallian effects from 40 percent to 70 percent the size of mobility effects.     

Nationality Population Trends in Belarus during the Recent Intercensal Period, 1989-1999

The author, a U.S. geographer specializing in issues of population change and urbanization in the countries of the former USSR, extends an earlier study of the population of Belarus (Rowland, 2003) by focusing on trends of change in the nationality composition of that country's population revealed by the most recent (1999) census. More specifically, the paper analyzes trends and patterns of the nationality composition of the total, urban, and rural Belarusian population at both the national and regional levels for the period 1989-1999. Journal of Economic Literature, Classification Numbers: J11, O18, R23. 3 figures, 10 tables, 10 references.     

Agglomeration,foreign firms and firm exit in regions under transition: the increasing importance of related variety in Hungary

ABSTRACT

Related variety of economic activities is widely recognized to induce regional development; however, it is not clear how this mechanism takes place in regions that go through major structural and institutional transformation. Furthermore, foreign direct investment (FDI) is typically a major source of structural change in these areas; and we still need a better understanding on how foreign-owned (foreign) firms affect the dynamics of domestic-owned (domestic) companies. For these reasons we analyse firm-level exit in Hungarian city regions between 1996 and 2011, over the late post-socialist transition in manufacturing industries, focusing on the difference between foreign and domestic firms. Introducing ownership into the related variety calculation, we estimate the probability of firm exit with the region-level related variety calculated separately for foreign and domestic firms. Our results suggest that related variety of foreign firms decreases the probability of domestic firm exit earlier during the economic transition compared to the related variety of domestic firms. This finding supports the idea that FDI plays a formative role in regions under transition, and shows that domestic firms benefit from being in agglomerations where foreign firms are technologically related to each other.     

The Commonwealth and the Cold War,Neutralism, and Non-Alignment

In the Cold War era, the Commonwealth represented a global sub-system which both permitted and enabled multiple identities. Between 1949 and 1990, as a direct product of British decolonisation, the Commonwealth came to include forty-nine members of varying size with very different agenda and developmental needs to those larger members from the global ‘North’. Its heterogeneous membership included: NATO countries; ANZUS; the Non-Aligned Movement; the OAU; CARICOM; and the Organisation of East Caribbean States. As a ‘unique sovereign regime’, the Commonwealth defied ideological typecasting. It possessed organisational structure and bureaucratic support; it combined economic, financial, technical, and scientific association, and privileged the role of diplomacy through the latitude permitted to its Secretary-General. The Commonwealth's two sustained ‘grand strategies’ were the pursuit of racial justice (in Rhodesia, South West Africa/South Africa) and social justice through the promotion of development, focusing on the principal preoccupations of newly independent states and their nation/state-building projects. These intersected with, but were by no means defined by, the Cold War, and represented a collaboration of West/South, rather than the confrontation of East/West.     

Policy Change and Learning in Response to Extreme Flood Events in Hungary: An Advocacy Coalition Approach

In an analysis of the 200‐year history of flood management in Hungary, I use the advocacy coalition framework and the focusing event literature to examine what policy change occurs and what is learned as a result of experiencing extreme and damaging flood events. By analyzing the policy response to a series of extreme floods (1998–2001) in this newly democratizing nation, I attempt to identify the factors that influenced the occurrence of policy change and policy‐oriented learning. In 2003, Hungary enacted a comprehensive flood management program that included economic development and environmental protection goals, a distinct departure from Hungary's historical structural approach to flood management. However, it is less clear that long‐lasting changes in belief systems about how floods should be managed have occurred. In this analysis, I argue that processes external to the flood policy subsystem (e.g., process of democratization and Hungary's accession to the European Union), along with the occurrence of the extreme flood events, enabled a coalition of individuals and organizations to press for policy change.     

Phosphates, plowzones, and plazas: a minimally invasive approach to settlement structure of plowed village sites

Inferences about settlement structure play an important role in explanations of social and political change in Late Prehistoric eastern North America, but ethical and logistical challenges posed by extensive horizontal excavations mean that archaeologists must develop low cost, minimally invasive methods for investigating key properties of village structure. There are two important components of most villages in the region: 1) the peripheral distribution of middens; and 2) the size and location of formal communal spaces or plazas, each of which leaves traces in soil chemistry. In shallowly buried, plowed village sites where artifacts have been physically displaced, the chemical signature of middens may be more resistant to disturbance and provide an enduring signature of ancient settlement structure. We conducted a systematic soil phosphorus survey at the Reinhardt Site (33PI880) in central Ohio, the primary occupation of which occurred during the Late Prehistoric Period (ca. AD 1200-1450), to test for the presence and approximate size of a central plaza and the shape and distribution of peripheral midden deposits. Soil samples from the modern plowzone (N = 131) were analyzed for Mehlich II extractable phosphorus using molybdate colorimetry. The interpolated phosphorus distributions indicate a clear ring midden approximately 90 m across with an internal plaza that is roughly 30 m × 40 m. Artifact distributions from a shovel test pit survey and interpolations of plowzone magnetic susceptibility measurements identify the location of the village but are ambiguous with regards to village size and do not clearly distinguish the central plaza. Our results suggest that systematic surveys of soil phosphorus are a rapid, minimally invasive, and inexpensive method for generating data on the size and shape of villages and their plazas.     

Ritual,Continuity and Change: Greek Reflections

This article examines the tangled question of continuity and change from the point of view of ritual. It brings together in dialogue recent theoretical approaches to ritual in anthropology with several examples of diachronic studies of Greek death practices. It points to the importance of focusing on questions of “form” in ritual practices—that is, “how” rituals work and are transmitted, more or less completely, from one generation to the next. It also considers the importance of historical consciousness, in particular the notion of “changing continuities”, in understanding some of the existential ways that ritual addresses common human experiences of temporality.     

Labor Specialization, Transport Costs, and City Size

This paper proposes a simple model of pre-industrial urbanization. Agglomeration stems from increasing returns generated by the specialization of labor, whereas dispersion is provoked by the transport costs of the agricultural good. Considering the existence of some urban institutions (in particular guilds), the equilibrium size of cities is derived and it is efficient. Within this framework, the effects of urban domination (e.g., taxation of agriculture) and the emergence of primate cities are explored. Finally, the transition between early and modern urbanization is studied.