Savage frontier Jusionyte, Ieva
2015., 20150609, 2015, 2015-06-05
eBook
This highly original work of anthropology combines extensive ethnographic fieldwork and investigative journalism to explain how security is understood, experienced, and constructed along the Triple ...Frontera, the border region shared by Argentina, Brazil, and Paraguay. One of the major "hot borders" in the Western Hemisphere, the Triple Frontera is associated with drug and human trafficking, contraband, money laundering, and terrorism. It's also a place where residents, particularly on the Argentine side, are subjected to increased governmental control and surveillance. How does a scholar tell a story about a place characterized by illicit international trading, rampant violence, and governmental militarization? Jusionyte inventively centered her ethnographic fieldwork on a community of journalists who investigate and report on crime and violence in the region. Through them she learned that a fair amount of petty, small-scale illicit trading goes unreported—a consequence of a community invested in promoting the idea that the border is a secure place that does not warrant militarized attention. The author's work demonstrates that while media is often seen as a powerful tool for spreading a sense of danger and uncertainty, sensationalizing crime and violence, and creating moral panics, journalists can actually do the opposite. Those who selectively report on illegal activities use the news to tell particular types of stories in an attempt to make their communities look and ultimately be more secure.
The author introduces and studies the bounded word problem and the precise word problem for groups given by means of generators and defining relations. For example, for every finitely presented ...group, the bounded word problem is in NP, i.e., it can be solved in nondeterministic polynomial time, and the precise word problem is in PSPACE, i.e., it can be solved in polynomial space. The main technical result of the paper states that, for certain finite presentations of groups, which include the Baumslag-Solitar one-relator groups and free products of cyclic groups, the bounded word problem and the precise word problem can be solved in polylogarithmic space. As consequences of developed techniques that can be described as calculus of brackets, the author obtains polylogarithmic space bounds for the computational complexity of the diagram problem for free groups, for the width problem for elements of free groups, and for computation of the area defined by polygonal singular closed curves in the plane. The author also obtains polynomial time bounds for these problems.
Habitat fragmentation causes extinction of local animal populations by decreasing the amount of viable "core" habitat area and increasing edge effects. It is widely accepted that larger fragments ...make better nature reserves because core-dwelling species have a larger amount of suitable habitat. Nevertheless, fragments in real landscapes have complex, irregular shapes. We modeled the population sizes of species that have a representative range of preferences for or aversions to habitat edges at five spatial scales (within 10, 32, 100, 320, and 1000 m of an edge) in a nation-wide analysis of forest remnants in New Zealand. We hypothesized that the irregular shapes of fragments in real landscapes should generate statistically significant correlations between population density and fragment area, purely as a "geometric" effect of varying species responses to the distribution of edge habitat. Irregularly shaped fragments consistently reduced the population size of core-dwelling species by 10-100%, depending on the scale over which species responded to habitat edges. Moreover, core populations within individual fragments were spatially discontinuous, containing multiple, disjunct populations that inhabited small spatial areas and had reduced population size. The geometric effect was highly nonlinear and depended on the range of fragment sizes sampled and the scale at which species responded to habitat edges. Fragment shape played a strong role in determining population size in fragmented landscapes; thus, habitat restoration efforts may be more effective if they focus on connecting disjunct cores rather than isolated fragments.
Full text
Available for:
BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NMLJ, NUK, OILJ, PNG, SAZU, SBCE, SBMB, UL, UM, UPUK
Understanding the relative effectiveness and enabling conditions of different area‐based management tools is essential for supporting efforts that achieve positive biodiversity outcomes as area‐based ...conservation coverage increases to meet newly set international targets. We used data from a coastal social–ecological monitoring program in 6 Indo‐Pacific countries to analyze whether social, ecological, and economic objectives and specific management rules (temporal closures, fishing gear‐specific, species‐specific restrictions) were associated with coral reef fish biomass above sustainable yield levels across different types of area‐based management tools (i.e., comparing those designated as marine protected areas MPAs with other types of area‐based management). All categories of objectives, multiple combinations of rules, and all types of area‐based management had some sites that were able to sustain high levels of reef fish biomass—a key measure for coral reef functioning—compared with reference sites with no area‐based management. Yet, the same management types also had sites with low biomass. As governments advance their commitments to the Kunming–Montreal Global Biodiversity Framework and the target to conserve 30% of the planet's land and oceans by 2030, we found that although different types of management can be effective, most of the managed areas in our study regions did not meet criteria for effectiveness. These findings underscore the importance of strong management and governance of managed areas and the need to measure the ecological impact of area‐based management rather than counting areas because of their designation.
Efectos de las reglas y objetivos de manejo sobre los resultados de conservación marina
Resumen
Es esencial entender la efectividad relativa y las condiciones habilitantes de las diferentes herramientas de manejo basadas en el área para respaldar los esfuerzos que brindan resultados positivos para la biodiversidad conforme aumenta la cobertura de la conservación basada en el área para alcanzar los objetivos internacionales recién establecidos. Usamos los datos de un programa de monitoreo socioeconómico costero en seis países del Indo‐Pacífico para analizar si los objetivos sociales, ecológicos y económicos y las reglas específicas de manejo (cierres temporales, restricciones de equipo de pesca, vedas de especies) se asociaban con la biomasa de los peces de arrecife de coral por encima de los niveles de producción sustentable en diferentes tipos de herramientas de manejo basadas en el área (es decir, comparar aquellas designadas como áreas marinas protegidasAMP con otros tipos de manejo basado en el área). Todas las categorías de objetivos, las múltiples combinaciones de reglas y todos los tipos de manejo basado en el área tuvieron algunos sitios capaces de mantener los niveles altos de biomasa de peces de arrecife—una medida importante para el funcionamiento de los arrecifes—en comparación con los sitios de referencia sin manejo basado en el área. Sin embargo, los mismos tipos de manejo también tuvieron sitios con baja biomasa. Conforme los gobiernos avanzan en sus compromisos con el Marco Global de Biodiversidad de Kunming‐Montreal y hacia el objetivo de conservar el 30% del suelo y los océanos del planeta para el 2030, descubrimos que, aunque diferentes tipos de manejo pueden ser efectivos, la mayoría de las áreas manejadas en nuestras regiones de estudio no cumplieron con los criterios de efectividad. Este descubrimiento enfatiza la importancia de una gestión y un gobierno sólidos de las áreas manejadas y la necesidad de medir el impacto ecológico del manejo basado en el área en lugar de contar las áreas por su designación.
Full text
Available for:
BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
The ventral tegmental area (VTA) has dopamine, GABA, and glutamate neurons, which have been implicated in reward and aversion. Here, we determined whether VTA-glutamate or -GABA neurons play a role ...in innate defensive behavior. By VTA cell-type-specific genetic ablation, we found that ablation of glutamate, but not GABA, neurons abolishes escape behavior in response to threatening stimuli. We found that escape behavior is also decreased by chemogenetic inhibition of VTA-glutamate neurons and detected increases in activity in VTA-glutamate neurons in response to the threatening stimuli. By ultrastructural and electrophysiological analysis, we established that VTA-glutamate neurons receive a major monosynaptic glutamatergic input from the lateral hypothalamic area (LHA) and found that photoinhibition of this input decreases escape responses to threatening stimuli. These findings indicate that VTA-glutamate neurons are activated by and required for innate defensive responses and that information on threatening stimuli to VTA-glutamate neurons is relayed by LHA-glutamate neurons.
Display omitted
•Ventral tegmental area (VTA)-glutamate neurons encode innate defensive behavior•A single VTA-glutamate neuron receives multiple hypothalamic excitatory inputs•Hypothalamic excitatory inputs to VTA-glutamate neurons convey treating information
Innate defensive behaviors are unlearned responses, evolutionarily selected to increase chances of survival. Here, Barbano et al. report that ventral tegmental area glutamatergic neurons are activated by and required for innate defensive responses and that information on threatening stimuli to these glutamate neurons is relayed by hypothalamic excitatory neurons.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
•In mice, LHANts neurons are positioned to coordinate feeding and drinking.•During the light cycle, activating LHANts neurons biases fluid over food intake.•In the dark cycle, activating LHANts ...neurons mediates aphagia but not drinking.•Activating LHANts neurons projecting to the LPO promotes drinking but not aphagia.
The lateral hypothalamic area (LHA) is essential for ingestive behavior but has primarily been studied in modulating feeding, with comparatively scant attention on drinking. This is partly because most LHA neurons simultaneously promote feeding and drinking, suggesting that ingestive behaviors track together. A notable exception are LHA neurons expressing neurotensin (LHANts neurons): activating these neurons promotes water intake but modestly restrains feeding. Here we investigated the connectivity of LHANts neurons, their necessity and sufficiency for drinking and feeding, and how timing and resource availability influence their modulation of these behaviors. LHANts neurons project broadly throughout the brain, including to the lateral preoptic area (LPO), a brain region implicated in modulating drinking behavior. LHANts neurons also receive inputs from brain regions implicated in sensing hydration and energy status. While activation of LHANts neurons is not required to maintain homeostatic water or food intake, it selectively promotes drinking during the light cycle, when ingestive drive is low. Activating LHANts neurons during this period also increases willingness to work for water or palatable fluids, regardless of their caloric content. By contrast, LHANts neuronal activation during the dark cycle does not promote drinking, but suppresses feeding during this time. Finally, we demonstrate that the activation of the LHANts → LPO projection is sufficient to mediate drinking behavior, but does not suppress feeding as observed after generally activating all LHANts neurons. Overall, our work suggests how and when LHANts neurons oppositely modulate ingestive behaviors
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Without citizenship from any country, more than 10 million people worldwide are unable to enjoy the rights, freedoms, and protections that citizens of a state take for granted. They are stateless and ...formally belong nowhere. The stateless typically face insurmountable obstacles in their ability to be self- determining agents and are vulnerable to a variety of harms, including neglect and exploitation. Through an analysis of statelessness in the Caribbean, Kristy A. Belton argues for the reconceptualization of statelessness as a form of forced displacement.Belton argues that the stateless—those who are displaced in place—suffer similarly to those who are forcibly displaced, but unlike the latter, they are born and reside within the country that denies or deprives them of citizenship. She explains how the peculiar form of displacement experienced by the stateless often occurs under nonconflict and noncrisis conditions and within democratic regimes, all of which serve to make such people's plight less visible and consequently heightens their vulnerability. Statelessness in the Caribbean addresses a number of current issues including belonging, migration and forced displacement, the treatment and inclusion of the ethnic and racial "other, " the application of international human rights law and doctrine to local contexts, and the ability of individuals to be self-determining agents who create the conditions of their own making.Belton concludes that statelessness needs to be addressed as a matter of global distributive justice. Citizenship is not only a necessary good for an individual in a world carved into states but is also a human right and a status that should not be determined by states alone. In order to resolve their predicament, the stateless must have the right to choose to belong to the communities of their birth.
This book examines the critical changes to the Asia-Pacific security architecture emerging in the context of shifts in the global order as the Obama Administration's major strategic innovation and ...likely legacy unfold. The author reviews the state of the international security system during the Obama presidency, recording the Administration's Asia-Pacific inheritance, and tracing its efforts to chart a collaborative course aimed at retaining US primacy amidst strategic turbulence. While security discourses are coloured by relative US 'decline' and China's 'rise,' the book points out the competitive-cooperative complexity of interactions, with symbiotic economic ties moderating rivalry. Focusing on the military-security cutting edge of Sino-US dynamics, the narrative outlines the dangers posed by extreme nationalist dialectics in an interdependent milieu. It examines the policies of Japan, Australia, India and Russia towards the evolving Sino-US diarchy, while recording Washington's and Beijing's contrasting approaches to these allies and possible adversaries. The book concludes with observations on the loss of definition and clarity as the system evolves with multiple actors bidding for influence, and the need for statesmanship as the systemic fulcrum moves from the Atlantic to the Pacific.
This book will be of interest to students and scholars of International Politics, Asian Politics, American Politics, International Security and International Relations.
Enduring rivalries recurrently ensnare states in militarized disputes and wars. Are they poised to intensify in the Asia-Pacific, a region characterized by regime and cultural differences, ...territorial contests, and competing nationalist and regime claims? It is often argued that these conditions and recent power shifts are likely to lead to conflict escalation and contagion, especially in Sino-American relations. Steve Chan's book challenges this common view and argues instead that Asia-Pacific rivalries are likely to be held in abeyance. He suggests that the majority of leaders in the region wish to base their political legitimacy on their economic performance rather than popular mobilization against foreign enemies. Economic interdependence and political multilateralism have restrained and in some cases reversed rivalries. Although Asia-Pacific states will continue to quarrel, Chan argues that their relations are more stable today than at any other time since 1945.
PDF
