bluuebunny/crossref_metadata_2025_split huggingface dataset:
State Creation in Nigeria: Failed Approaches to National Integration and Local Autonomy
Authors: Alapiki Henry E. 
Published: February 2006

Abstract:This paper seeks to demonstrate how the fissiparous tendencies bearing on the Nigerian national polity make the policy of using state creation to achieve national integration a failed strategy. The paper shows how the outcomes of state creation exercises in Nigeria have failed to assuage the very forces that instigate new state demands. It contends that the prospects for national integration and local autonomy depend on the emergence of a purposeful national leadership and proper political restructuring of the federation designed to generate a national image that has more appeal than the regional ones.
Identities in Transition: Shifting Conceptions of Home among “Black” South African University Students
Authors: Bangeni Bongi , Kapp Rochelle 
Published: February 2006

Abstract:This paper is drawn from a longitudinal case study in which we are tracking the progress of twenty students as they pursue their undergraduate degrees at the University of Cape Town. In this paper we trace two first-generation university students' changing constructions of who they are and the concomitant changes in their relationship to home and university over the course of three years. We describe their struggles to present coherent “home” identities and the ways in which these identities are challenged by both the dominant discourses of the institution and by rejection by their home communities. The research questions conventional notions that students from marginalized communities are either alienated from, or uncritically assimilated into, dominant institutional discourses.
Foreign Aid and Democratization: Benin and Niger Compared
Authors: Gazibo Mamoudou 
Published: February 2006

Abstract:This article compares the democratization process in Benin and Niger in the decade from 1989 to 1999 and emphasizes the influence of external donors with regard to their economic support of democratization. The task is twofold. First, I try to understand why, though these two aid-dependent countries share many initial similarities, the former received more external financial assistance than the latter. I build upon New Institutionalist concepts such as timing, sequence, and path dependency to demonstrate that the probability and continuity of foreign aid depend both on the timing and on sequences of the transition—a combination that may or may not produce a path-dependent phenomenon with regard to the donors. Second, I argue that the capacity of foreign aid to foster democratization depends largely on its timing, particularly in critical moments of the democratic process.
NgomaMemories: How Ritual Music and Dance Shaped the Northern Kenya Coast
Authors: Gearhart Rebecca 
Published: February 2006

Abstract:This essay integrates ethnographic data collected between Mombasa and the Lamu archipelago in Kenya into the growing body of scholarship on Swahili music and dance (ngoma) traditions. The analysis underscores how the Swahili have used ngoma events to stake claims to higher positions on the social ladder, negotiate difference, create socioeconomic security networks, establish and mark group identity, connect to the spirit world, and pass through various stages of the life cycle. Through a rich array of historical accounts by visitors to the coast, whose texts complement oral histories of coastal residents, the importance of ngoma in the Swahili-ization of the East African coast becomes apparent. A comprehensive understanding of the part ngoma organizations have played in the recreation and re-creation of Swahili society is possible only when one factors in the contributions made by residents of the northernmost portion of the “Swahili coast.”
Lending a Voice to the Voiceless: The Quest for Justice in Umutesi's Narrative
Authors: Habimana Aloys 
Published: February 2006

Surviving the Slaughter is a powerful narrative that takes us into one of the many tragedies of the African Great Lakes region that affected tens of thousands of helpless Rwandan civilians in the aftermath of the 1994 genocide inside Rwanda. Through the eyes of an ordinary, but also remarkable, woman, we learn the horrifying details of the ordeals that Rwandan refugees in the eastern part of the Democratic Republic of the Congo (DRC) went through after their camps were destroyed manu militari. The value of this book goes beyond that of a simple narrative. As we read it, we are absorbed by an account of a breathtaking and excruciating journey of tens of thousands of people as they are hunted down in the dense rainforests of the Congo. At the core of this account is one woman's protest against the absurdity of mass violence and the inhuman brutality of military regimes.At first glance, the book stands out as a strong stand against the corrosive tradition of silence that often accompanies gross violations of human rights, especially those unfolding beyond the scrutiny of the major world media. In a simple but engaging style, Umutesi strips off the usual veneer of reserve that characterizes Rwandans in general and Rwandan women in particular. Rwandans don't usually talk about their experiences, let alone write about them. And writing about the plight of people whom the world has often considered pariahs since the 1994 genocide requires a strong personality.
On Behalf of Ordinary People: Bridging the Gap between High Politics and Simple Tragedies
Authors: de Lame Danielle 
Published: February 2006

Without minimizing the horrors of the genocide in Rwanda in 1994, the book by Marie Béatrice Umutesi,Fuir ou mourir au Zaïre(“Running Away or Dying in Zaïre,” L'Harmattan, 2000), published under the English titleSurviving the Slaughter: The Ordeal of a Rwandan Refugee in Zaire” throws a much needed light on the plight of Rwandan refugees in Kivu from the time they fled Rwanda, many of them as ordinary, peaceful citizens. If we want to understand the events that continue to unfold in the region, and if we want to improve the aid humanitarian agencies provide, we need to consider Umutesi's story—a story in which distant international organizations, with their own views and objectives, took actions that had deleterious consequences for ordinary people.While some refugees pursued dubious policies in the camps, people of good will went on helping others while they all were in exile. Their collective support systems helped them retain their dignity under the worst of circumstances and, when their fragile safe haven came under attack, helped them endure a hell that seemed at times unendurable. Telling the complete history, as Jan Vansina helped to do in his recent book (2004), and putting ordinary people back into the picture, are the surest ways to avoid lethal stereotypes and quick categorizations that hinder our understanding of complex situations and produce simplifications that contribute to more injustice.
Bearing Witness to Mass Murder
Authors: Lemarchand René 
Published: February 2006

The third day after leaving Tingi-Tingi we began to pass the bodies of the dead and the dying.… My eye fell on a teenager hardly sixteen years old. Like the others she was lying at the side of the road, her large eyes open.… A cloud of flies swarmed around her. Ants and other forest insects crawled around her mouth, nose, eyes and ears. They began to devour her before she had taken her last breath. The death rattle that from time to time escaped her lips showed that she was not yet dead. All who passed by glanced at her and then took up their conversation where they had left off. I stood in a daze in front of this sixteen-year-old girl, lying in agony by the side of the road in die middle of the equatorial forest more than five hundred kilometers from home. As in 1993, when I heard about the extermination of my mother's family, as in 1994, when I saw the burned houses, the fear in the eyes of the fleeing Tutsi, and the arrogance and the hate in the faces of their executioners, as in 1995 when I saw pictures of women and children assassinated by the RPF in the camps at Birava, I was overcome by revulsion. What crime had all these victims committed to deserve such a death?Marie Béatrice Umutesi, Surviving the SlaughterIn the “witness literature” on the Great Lakes, Marie Béatrice Umutesi's wrenching narrative surpasses all others by its searing, intensely personal quality. She bears testimony to an almost forgotten tragedy: Between October 1996 and September 1997, hundreds of thousands of Hutu refugees lost their lives in the course of a massive manhunt carried out by Rwandan-backed rebels and units of the Rwandan army.
Suffering and Survival in Central Africa
Authors: Newbury Catharine 
Published: February 2006

In this remarkable book, Marie Béatrice Umutesi recounts what she saw and experienced in Rwanda before and during the 1994 genocide, and as a refugee in Zaire after the genocide. With its intense local level perspective, her study provides fresh insights into the Rwanda genocide and its antecedents, the massacre of Rwandan refugees during the war in Zaire of the mid-1990s, and the utter failure of the international media to understand what was happening there on the ground. Eschewing extremism of all sides, Umutesi records the experiences of ordinary people buffeted by violent events and broader political dynamics they could not control. She is a perspicacious observer—astute, courageous, engaged, and compassionate. One of the remarkable features of this narrative, however, is how little Umutesi appears in this text; it is about her experiences, to be sure, but not about “her.” It is as a testimonial to the times and the human experiences of those times that this tale has such force.The initial chapters ofSurviving the Slaughterrecount Umutesi's experiences as a student in the 1970s and mid-1980s and (having completed her university education) as a young adult managing rural development programs. Ethnic distinctions between Hutu and Tutsi held litde importance for Umutesi and her friends while she was growing up. Instead, as a Hutu from the north, she found that regional tensions among Hutu were important during the 1980s, under the Second Republic of Juvenal Habyarimana, when she witnessed regionalism in high school and college in Rwanda. Only later, when studying in Belgium, did ethnic distinctions and discrimination between Hutu and Tutsi come into play. The examples she describes show both the contingent nature of ethnic categorization and identities in Rwanda, and the importance of politics in shaping their salience.
Marie Béatrice Umutesi's Truth: The Other Rwanda Genocide?
Authors: Songolo Aliko 
Published: February 2006

Une tragédie n'exclut pas l'autreet il n'existe aucune hiérarchie dans la souffrance.(One tragedy does not cancel out the other,and there is no hierarchy in suffering.)Calixthe Beyala (2005)There can be no reconciliation between Hutu and Tutsi withoutjustice, and no justice without truth. This proposition holds truefor all three states of former Belgian Africa.René Lemarchand (1998)The title of Marie Béatrice Umutesi's book, Fuir ou mourir au Zaïre: Le vécu d'une Réfugiée Rwandaise—or in its English version, Surviving the Slaughter: The Ordeal of a Rwandan Refugee in Zaïre—might prove confusing for some readers on at least two counts. Because the name Rwanda will forever be associated in our memory with the horror of the 1994 genocide, one might surmise that this is the story of a Tutsi survivor taking refuge in neighboring Zaire, as in previous massacres in 1959, 1963, and 1973. But then again, considering the disastrous wars that have raged in that country for the last decade, one might conclude that Umutesi's book tells the story of a Rwandan refugee caught in the crossfire between competing forces, Rwanda versus Uganda and their proxies within the former Zaire. Both assumptions would be only half true. The missing half in both inferences is that the ordeal of this refugee and her cohort originated in the Rwandan conflict that began in 1990 and culminated in the genocide four years later. Shrewdly orchestrated and largely perpetrated by the Tutsi-dominated regime that took power in Rwanda in the aftermath of the genocide, the slaughter of these Hutu refugees has been concealed behind a curtain of silence on the part of the international community. In the drama that unfolds in Umutesi's book, Zairian territory is the unwitting, albeit highly significant, theater of the cynically suppressed story of the disappearance of nearly a quarter million Hutu refugees from Rwanda at the hands of shadowy “rebels.”
Toxicity benchmarks for antimony, barium, and beryllium determined using reproduction endpoints forFolsomia candida,Eisenia fetida, andEnchytraeus crypticus
Authors: Kuperman Roman G. , Checkai Ronald T. , Simini Michael , Phillips Carlton T. , Speicher Jason A. , Barclift David J. 
Published: February 2006

AbstractThe U.S. Environmental Protection Agency is developing ecological soil screening levels (Eco-SSLs) for the ecological risk assessment of contaminants at Superfund sites. The Eco-SSLs for several soil contaminants have been developed from toxicity benchmarks for soil invertebrates in the existing literature. Insufficient information to generate Eco-SSLs for Sb, Ba, and Be necessitated toxicity testing to fill the data gaps. We used standardized toxicity tests with the earthworm Eisenia fetida, enchytraeid Enchytraeus crypticus, and collembolan Folsomia candida in the present study. These tests were selected on the basis of their ability to measure chemical toxicity to ecologically relevant test species during chronic assays and their inclusion of at least one reproduction component among the measurement endpoints. Tests were conducted in Sassafras Sandy Loam soil, which supports relatively high bioavailability of metals. Weathering and aging procedures for metals in amended soil were incorporated into these studies to better reflect exposure conditions in the field. The relative toxicity of metals to the soil invertebrates tested was Be &gt; Sb &gt; Ba based on the median effective concentration values for reproduction. These studies produced toxicological data that can contribute to the development of Eco-SSLs for Sb, Ba, and Be for soil invertebrates.
Effect of a copper gradient on plant community structure
Authors: Strandberg Beate , Axelsen Jørgen A. , Pedersen Marianne Bruus , Jensen John , Attrill Martin J. 
Published: February 2006

Abstract
Vegetation data including plant cover, biomass, species richness, and vegetation height was sampled on a copper-contaminated field with total copper contents varying from 50 to almost 3,000 mg/kg soil. The field was covered by early succession grassland dominated by Agrostis stolonifera. Plant cover, biomass, species richness, and vegetation height generally decreased with increasing copper content, although the highest biomass was reached at intermediate copper concentrations. Multivariate statistical analyses showed that plant community composition was significantly correlated with soil copper concentration and that community composition at soil copper concentrations above 200 mg/kg differed significantly from community composition at lower copper levels. Comparison of single-species (Black Bindweed, Fallopia convolvulus) performance at the field site and in laboratory tests involving field soil and spiked soil indicates that the laboratory tests conventionally applied for risk assessment purposes do not overestimate copper effects. Interaction between copper and other stressors operating only in the field probably balance the higher bioavailability in spiked soil.
Improvement of the applicability of ecotoxicological tests with earthworms, springtails, and plants for the assessment of metals in natural soils
Authors: Römbke Jörg , Jänsch Stephan , Junker Thomas , Pohl Britta , Scheffczyk Adam , Schallnaß Hans-Joachim 
Published: February 2006

AbstractThe environmental risk assessment of metals in the soil compartment is based mainly on tests performed in Organization for Economic Cooperation and Development (OECD) artificial soil, but ecologically, the use of natural soils would be more relevant. In this contribution, the reproduction and growth of three standard species (an earthworm, a collembolan, and a dicotyledonous plant, respectively) was evaluated in nine natural soils (covering a wide range of pH values, organic matter content, texture, and so on) and in OECD artificial soil. Afterward, the effects of the model chemical zinc nitrate were assessed in all soils that were identified as being suitable for these species. The test results indicate that the toxicity of zinc nitrate can be higher by a factor of approximately four compared to artificial soil for invertebrates (earthworms and collembolans), whereas plants are only slightly more sensitive in some natural soils than in artificial soil. When comparing the different endpoints, it could be confirmed that the median effective concentration (EC50) is the most robust compared to the highly uncertain 10% effective concentration. Decreasing toxicity of zinc nitrate to collembolans was significantly correlated with an increase in soil pH but not with cation exchange capacity (CEC) or organic carbon (OC) content. No significant correlation was found between the toxicity of zinc nitrate to earthworms or plants and soil pH, CEC, or OC content. Possible consequences of the results are discussed, such as the testing of natural soils in addition to the OECD artificial soil or the inclusion of an additional safety factor to use the EC50 in current risk assessment schemes focusing on no-observed-effect concentrations.
Soil factors controlling the expression of copper toxicity to plants in a wide range of European soils
Authors: Rooney Corinne P. , Zhao Fang-Jie , McGrath Steve P. 
Published: February 2006

Abstract
The impact of soil properties on metal bioavailability to plants is well recognized. However, the effect of soil bio-availability parameters on toxicity threshold values for Cu in plants needs quantification. Eighteen European soils varying widely in soil properties were amended with CuCl2 to obtain a range of seven concentrations including an unamended control. Two plant toxicity assays, barley root elongation (4 d) and tomato shoot growth (21 d after emergence), were performed on each soil under controlled environment conditions. The effective concentration of added Cu causing 50% inhibition (EC50) ranged from 36 to 536 mg/kg soil and from 22 to 851 mg/kg soil for barley root elongation and tomato shoot growth, respectively, representing variation in EC50 among soils of 15- and 39-fold. Single regressions carried out between Cu toxicity threshold values and various soil properties showed that exchangeable calcium and soil cation exchange capacity (CEC; measured at soil pH) were the best single predictors for toxicity values from both plant tests. The inclusion of other soil properties, such as iron oxide concentration, soil pH, clay, or organic carbon content, further improved predictions. For risk assessment, we suggest that Cu toxicity threshold values (EC50) be normalized on the key soil property of CEC. If available, soil exchangeable calcium and iron oxide concentration would improve the normalization.
Comparison of soil solution speciation and diffusive gradients in thin-films measurement as an indicator of copper bioavailability to plants
Authors: Zhao Fang-Jie , Rooney Corinne P. , Zhang Hao , McGrath Steve P. 
Published: February 2006

AbstractThe toxicity effect concentrations (10% effective concentration [EC10] and 50% effective concentration [EC50]) of total added Cu derived from barley root elongation and tomato growth assays varied widely among 18 European soils. We investigated whether this variation could be explained by the solubility or speciation of Cu in soil solutions or the diffusive gradients in thin-films (DGT) measurement. Solubility and Cu speciation varied greatly among the soils tested. However, the EC10 and EC50 of soil solution Cu or free Cu2+ activity varied even more widely than those based on the total added Cu, indicating that solubility or soil solution speciation alone could not explain intersoil variation in Cu toxicity. Estimated EC10 and EC50 of free Cu2+ activity correlated closely and negatively with soil pH, indicating a protective effect of H+, which is consistent with the biotic ligand model concept. The DGT measurement was found to narrow the intersoil variation in EC50 considerably and to be a better predictor of plant Cu concentrations than either soil solution Cu or free Cu2+ activity. We conclude that plant bioavailability of Cu in soil depends on Cu speciation, interactions with protective ions (particularly H+), and the resupply from the solid phase, and we conclude that the DGT measurement provides a useful indicator of Cu bioavailability in soil.
Rhizotoxicity of cadmium and copper in soil extracts
Authors: Voigt Astrid , Hendershot William H. , Sunahara Geoffrey I. 
Published: February 2006

AbstractDissolved organic matter (DOM) influences metal speciation in soil solutions and, hence, metal toxicity. Root-elongation experiments were conducted to examine the effect of soil solution components, such as Ca, H, and DOM, on metal rhizotoxicity. A biotic ligand model (BLM) was tested for its ability to predict the rhizotoxicity of Cd and Cu in soil extracts. It was hypothesized that the concentration of Cd and Cu bound to functional groups at the root surface estimated using a BLM would be a better predictor of rhizotoxicity than the free-metal ion activity in solution. Both metals became less toxic at higher DOM, Ca, and H concentrations. Solution speciation and the effect on root growth explained most of the variability observed in the DOM experiments, but not in the cation experiments. It was concluded that Ca and H inhibited the rhizotoxicity of both metals tested. Rhizotoxicity data correlated better with estimates of metal-root complexes that have been estimated with a BLM than with free-metal ion activity or with total metal concentrations. The BLM seems to be a promising approach for predicting metal availability in soils and for assessing the associated risk.
Plant toxicity testing to derive ecological soil screening levels for cobalt and nickel
Authors: Kapustka Lawrence A. , Eskew David , Yocum Joan M. 
Published: February 2006

AbstractPhytotoxicity tests were performed to set ecological soil screening levels for cobalt (Co) and nickel (Ni) following the American Society for Testing and Materials international E1963–98 Standard Guide for Conducting Terrestrial Plant Toxicity Tests. Two soils (a modified artificial soil mixed with 5% organic matter, pH 5.01, and a native riverine sandy soil with 0.1% organic matter, pH 6.3) were treated with cobalt(II) chloride or nickel chloride and allowed to age for four weeks before initiating tests. Alfalfa, barley, radish, perennial rye, and brassica were used to determine the appropriate range of concentrations and to select the most sensitive plant species for definitive tests. The tests were designed to have one to three test concentrations below the 20% effects concentration (EC20), and five to six test concentrations above the EC20. Definitive tests for each chemical used two soil matrices, three plant species, and replicates at 10 nominal concentrations, including negative control. Soil chemical concentrations were determined before planting and on completion of the phytotoxicity tests. Threshold responses interpreted as the EC20 for each species endpoint were calculated from regression analyses. The geometric mean of the EC20 values (excluding emergence, mortality, and nodule numbers) for each species resulted in values of 30.6 mg/kg for Co and 27.9 mg/kg for Ni.