1,334 research outputs found
Gathering and Sending: Welcome, Greetings, Blessings, Webinar 2
These words of Gathering and Sending: Welcome, Greetings, Blessings, were part of Webinar 2 (November 15, 2022) of the Webinar Series “For the Sake of the Gospel” hosted by the Remembering Today for the Church of Tomorrow Project in partnership with Martin Luther University College and Lutheran Theological Seminary. Endnotes by Karen Kuhnert. Kuhnert opened with an Acknowledgement of Indigenous Neighbours and Territories
Empirical Studies of Evolving Systems
This paper describes the results of the working group investigating the issues of empirical studies for
evolving systems. The groups found that there were many issues that were central to successful evolution and this
concluded that this is a very important area within software engineering. Finally nine main areas were selected for consideration. For each of these areas the central issues were identified as well as success factors. In some cases success stories were also described and the critical factors accounting for the success analysed. In some cases it was later found that a number of areas were so tightly coupled that it was important to discuss them together
Abundance and stomach content analysis of threadfin shad in Lake Mead, Nevada: Do invasive quagga mussels affect this prey species?
Lake Mead, Nevada is the largest reservoir by volume in the United States, as well as a popular sport fishing destination. In January 2007, the invasive quagga mussel Dreissena rostriformis bugensis (Andrusov, 1897) was discovered in the reservoir and concerns began to arise about potential alterations to the aquatic environment. The Lake Mead sport fishery is reliant on the sustainability of prey species like the threadfin shad [Dorosoma petenense (Günther, 1867)]. This study examined 20-year trends in historic abundance of the threadfin shad, before, and shortly after, the discovery of quagga mussels in the system. Larval shad trawl data collected in Las Vegas Bay and Overton Arm portions of Lake Mead were analyzed in the present study. Two-way analysis of variances showed that the abundance of this prey fish has not changed following quagga mussel invasion (P \u3e 0.05). Post-quagga mussel discovery collections of adult threadfin shad from Las Vegas Bay ranged from 113 to 212 mm total length (TL) (mean = 184 mm; n = 170). Shad from Overton Arm ranged from 131 to 197 mm TL (mean = 150 mm; n = 27). Stomach contents were analyzed. The proportion of cladocerans in stomach contents differed significantly from spring to winter in Las Vegas Bay (P = 0.008); whereas the proportion of copepods did not show statistically relevant differences regarding seasonality (P = 0.562). Initial trends in lower trophic level dynamics in response to quagga mussel invasion has yet to reveal significant effects in Las Vegas Bay or Overton Arm. Long-term monitoring on threadfin shad is needed to evaluate potential impacts from invasive quagga mussels in Lake Mead
Globalisation masculinities, empire building and forced prostitution: a critical analysis of the gendered impact of the neoliberal economic agenda in post-invasion/occupation Iraq
Adopting a transnational feminist lens and using a political economy approach, this article addresses both the direct and indirect consequences of the 2003 war in Iraq, specifically the impact on civilian women. Pre-war security and gender relations in Iraq will be compared with the situation post-invasion/occupation. The article examines the globalised processes of capitalism, neoliberalism and neo-colonialism and their impact on the political, social and economic infrastructure in Iraq. Particular attention will be paid to illicit and informal economies: coping, combat and criminal. The 2003 Iraq war was fought using masculinities of empire, post-colonialism and neoliberalism. Using the example of forced prostitution, the article will argue that these globalisation masculinities – specifically the privatisation agenda of the West and its illegal economic occupation – have resulted in women either being forced into the illicit (coping) economy as a means of survival, or trafficked for sexual slavery by profit-seeking criminal networks who exploit the informal economy in a post-invasion/occupation Iraq
Quantitative localized proton-promoted dissolution kinetics of calcite using scanning electrochemical microscopy (SECM)
Scanning electrochemical microscopy (SECM) has been used to determine quantitatively the kinetics of proton-promoted dissolution of the calcite (101̅4) cleavage surface (from natural “Iceland Spar”) at the microscopic scale. By working under conditions where the probe size is much less than the characteristic dislocation spacing (as revealed from etching), it has been possible to measure kinetics mainly in regions of the surface which are free from dislocations, for the first time. To clearly reveal the locations of measurements, studies focused on cleaved “mirror” surfaces, where one of the two faces produced by cleavage was etched freely to reveal defects intersecting the surface, while the other (mirror) face was etched locally (and quantitatively) using SECM to generate high proton fluxes with a 25 μm diameter Pt disk ultramicroelectrode (UME) positioned at a defined (known) distance from a crystal surface. The etch pits formed at various etch times were measured using white light interferometry to ascertain pit dimensions. To determine quantitative dissolution kinetics, a moving boundary finite element model was formulated in which experimental time-dependent pit expansion data formed the input for simulations, from which solution and interfacial concentrations of key chemical species, and interfacial fluxes, could then be determined and visualized. This novel analysis allowed the rate constant for proton attack on calcite, and the order of the reaction with respect to the interfacial proton concentration, to be determined unambiguously. The process was found to be first order in terms of interfacial proton concentration with a rate constant k = 6.3 (± 1.3) × 10–4 m s–1. Significantly, this value is similar to previous macroscopic rate measurements of calcite dissolution which averaged over large areas and many dislocation sites, and where such sites provided a continuous source of steps for dissolution. Since the local measurements reported herein are mainly made in regions without dislocations, this study demonstrates that dislocations and steps that arise from such sites are not needed for fast proton-promoted calcite dissolution. Other sites, such as point defects, which are naturally abundant in calcite, are likely to be key reaction sites
The C-Type Lectin of the Aggrecan G3 Domain Activates Complement
Excessive complement activation contributes to joint diseases such as rheumatoid arthritis and osteoarthritis during which cartilage proteins are fragmented and released into the synovial fluid. Some of these proteins and fragments activate complement, which may sustain inflammation. The G3 domain of large cartilage proteoglycan aggrecan interacts with other extracellular matrix proteins, fibulins and tenascins, via its C-type lectin domain (CLD) and has important functions in matrix organization. Fragments containing G3 domain are released during normal aggrecan turnover, but increasingly so in disease. We now show that the aggrecan CLD part of the G3 domain activates the classical and to a lesser extent the alternative pathway of complement, via binding of C1q and C3, respectively. The complement control protein (CCP) domain adjacent to the CLD showed no effect on complement initiation. The binding of C1q to G3 depended on ionic interactions and was decreased in D2267N mutant G3. However, the observed complement activation was attenuated due to binding of complement inhibitor factor H to CLD and CCP domains. This was most apparent at the level of deposition of terminal complement components. Taken together our observations indicate aggrecan CLD as one factor involved in the sustained inflammation of the joint
The agency of liminality: army wives in the DR Congo and the tactical reversal of militarization
The inherently unstable boundaries between military and civilian worlds have emerged as a main object of study within the field of critical military studies. This article sheds light on the (re)production of these boundaries by attending to a group that rarely features in the debates on the military/civilian divide: army wives in a ‘non-Northern’ context, more specifically the Democratic Republic of the Congo (DRC). Drawing upon the ‘analytical toolbox’ of governmentality, we explore how civilian and military positionalities are called upon, articulated and subverted in the governing and self-governing of Congolese army wives. We show the decisive importance of these wives’ civilian-military ‘in betweenness’ both in efforts to govern them and in their exercise of agency, in particular
The inherently unstable boundaries between military and civilian worlds have emerged as a main object of study within the field of critical military studies. This article sheds light on the (re)production of these boundaries by attending to a group that rarely features in the debates on the military/civilian divide: army wives in a ‘non-Northern’ context, more specifically the Democratic Republic of the Congo (DRC). Drawing upon the ‘analytical toolbox’ of governmentality, we explore how civilian and military positionalities are called upon, articulated, and subverted in the governing and self-governing of Congolese army wives. We show the decisive importance of these wives’ civilian–military ‘in-betweenness’ both in efforts to govern them and in their exercise of agency, in particular the ways in which they ‘tactically reverse’ militarization. The article also demonstrates the dispersed nature of the governing arrangements surrounding army wives, highlighting the vital role of ‘the civilian’ as well as the ‘agency of those being militarized’ within processes of militarization. By foregrounding the relevance of studying Congolese army wives and their militarization with an analytical toolbox often reserved for so called ‘advanced militaries/societies’, and by revealing numerous similarities between the Congolese and ‘Northern’ contexts, the article also sets out to counter the Euro/US-centrism and ‘theoretical discrimination’ that mark present-day (critical) military studies
Koinonia
Spotlight FeaturesHas Facebook Jumped the Shark?, Rick Zomer
The Good, the Bad, and the Ugly of Virtual Community, David Johnstone
Screenagers: How Technology is Changing the Way we Interact with Students, Tim Elmore
\u27In Loco Parentis\u27 Revisited, Gene C. Fant Jr.
ACSD News: From Location to Interest: ACSD Considers Move from Regional to Collaboratives Model, Edee Schulze, Connie Sjoberg, Mike Broberg, David A. Kennedy, Nicole Hoefle
Thinking TheologicallyKeeping Faith: Serving Students or the Kingdom, Michael and Stephanie Santarosa
Book ReviewsEncouraging Authenticity and Spirituality in Higher Education, reviewed by Jason M. Morris
My Freshman Year, Heidi Johnston
FeaturesThe President\u27s Corner; Editor\u27s Deskhttps://pillars.taylor.edu/acsd_koinonia/1002/thumbnail.jp
Reclaiming the political : emancipation and critique in security studies
The critical security studies literature has been marked by a shared commitment towards the politicization of security – that is, the analysis of its assumptions, implications and the practices through which it is (re)produced. In recent years, however, politicization has been accompanied by a tendency to conceive security as connected with a logic of exclusion, totalization and even violence. This has resulted in an imbalanced politicization that weakens critique. Seeking to tackle this situation, the present article engages with contributions that have advanced emancipatory versions of security. Starting with, but going beyond, the so-called Aberystwyth School of security studies, the argument reconsiders the meaning of security as emancipation by making the case for a systematic engagement with the notions of reality and power. This revised version of security as emancipation strengthens critique by addressing political dimensions that have been underplayed in the critical security literature
Toward Human-Carnivore Coexistence: Understanding Tolerance for Tigers in Bangladesh
Fostering local community tolerance for endangered carnivores, such as tigers (Panthera tigris), is a core component of many conservation strategies. Identification of antecedents of tolerance will facilitate the development of effective tolerance-building conservation action and secure local community support for, and involvement in, conservation initiatives. We use a stated preference approach for measuring tolerance, based on the ‘Wildlife Stakeholder Acceptance Capacity’ concept, to explore villagers’ tolerance levels for tigers in the Bangladesh Sundarbans, an area where, at the time of the research, human-tiger conflict was severe. We apply structural equation modeling to test an a priori defined theoretical model of tolerance and identify the experiential and psychological basis of tolerance in this community. Our results indicate that beliefs about tigers and about the perceived current tiger population trend are predictors of tolerance for tigers. Positive beliefs about tigers and a belief that the tiger population is not currently increasing are both associated with greater stated tolerance for the species. Contrary to commonly-held notions, negative experiences with tigers do not directly affect tolerance levels; instead, their effect is mediated by villagers’ beliefs about tigers and risk perceptions concerning human-tiger conflict incidents. These findings highlight a need to explore and understand the socio-psychological factors that encourage tolerance towards endangered species. Our research also demonstrates the applicability of this approach to tolerance research to a wide range of socio-economic and cultural contexts and reveals its capacity to enhance carnivore conservation efforts worldwide
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