101 research outputs found
Faith in Action: Understanding the Relationship between Faith and Practice for Evangelical Humanitarian Organisations
The increased interest in and willingness to consider the role of religious actors, ideas and practices in the IR discipline is a promising development of contemporary scholarship. Within the study of humanitarianism in particular, attention to the range of ways in which religion infuses action and meaning in the global space has raised important questions about how best to go about answering the questions of when and how these religious factors matter. However, the slow pace at which the field is moving away from secular framings of humanitarianism means that religious actors are still largely under-conceptualised, and poorly understood. This disproportionately affects perceptions of religious actors that do not obviously resemble the mainstream aid community, such as evangelical Christian faith-based organisations (FBOs). Understanding the relationship between their religious identity and their humanitarian practices in a manner that does not reproduce such framings is an important research task to contribute to this field. This thesis seeks to advance conceptualisation of this relationship by providing such a theoretical framework. It also contributes original empirical evidence through case studies to which this framework is applied. It explores the relationship between identity and practice by asking what role theological commitments play in guiding the humanitarian practices of evangelical Christian FBOs. It does so by examining three evangelical humanitarian agencies - World Vision, Samaritan's Purse, and Compassion International - as they engaged with two humanitarian disasters in the Asia Pacific region: the 2004 Indian Ocean tsunami in Aceh, Indonesia, and the 2008 Cyclone Nargis in the Ayeyarwady delta region in Myanmar.
It finds that their evangelical theological commitments play an important part in constructing an organisational identity and set of values for each agency, which then orients them towards certain styles of response. However, this understanding of the role of faith is incomplete without also considering the constitutive role of context in both giving the boundaries in which those beliefs can be expressed, and supplying important pressures, constraints, and demands that shape that expression. Their theological commitments created a framework of action for these evangelical FBOs that interacted constitutively with a prism of environmental factors in order to produce humanitarian practices that both reflected and diverged from the broader mainstream response, depending on circumstances. These findings highlight the importance of approaching religious organisations as complex and agentive actors, who adopt, reject or adapt to the pressures of the dynamic environments in which they work. It is an insight necessary not just for dealing with evangelical FBOs working in the humanitarian space, but in understanding religious actors across various sites of global politics
A Winning Combination! Leadership Skills and Formation for Catholic School Leaders
This session emphasizes the importance of balancing personal and spiritual growth with leadership skills. Some practical tips and a model that illustrates this approach to leadership development will be shared via an interactive format
In Vivo Detection of miRNA Expression in Tumors Using an Activatable Nanosensor
Purpose
The development of tools for the analysis of microRNA (miRNA) function in tumors can advance our diagnostic and prognostic capabilities. Here, we describe the development of technology for the profiling of miRNA expression in the tumors of live animals.
Procedures
The approach is based on miRNA nanosensors consisting of sensor oligonucleotides conjugated to magnetic nanoparticles for systemic delivery. Feasibility was demonstrated for the detection of miR-10b, implicated in epithelial to mesenchymal transition and the development of metastasis. The miR-10b nanosensor was tested in vivo in two mouse models of cancer. In the first model, mice were implanted subcutaneously with MDA-MB-231-luc-D3H2LN tumors, in which miR-10b was inhibited. In the second model, mice were implanted bilaterally with metastatic MDA-MB-231 and nonmetastatic MCF-7 cells. The nanosensors were injected intravenously, and fluorescence intensity in the tumors was monitored over time.
Results
We showed that the described nanosensors are capable of discriminating between tumors based on their expression of miR-10b. Radiant efficiency was higher in the miR-10b-active tumors than in the miR-10b-inhibited tumors and in the MDA-MB-231 tumors relative to the MCF-7 tumors.
Conclusions
The described technology provides an important tool that could be used to answer questions about microRNA function in cancer.National Institutes of Health (U.S.) (National Cancer Institute R01CA16346101A1)Breast Cancer Alliance (Young Investigator Award
Interaction Between Allelic Variations in Vitamin D Receptor and Retinoid X Receptor Genes on Metabolic Traits
Low vitamin D status has been shown to be a risk factor for several metabolic traits such as obesity, diabetes and cardiovascular disease. The biological actions of 1, 25-dihydroxyvitamin D, are mediated through the vitamin D receptor (VDR), which heterodimerizes with retinoid X receptor, gamma (RXRG). Hence, we examined the potential interactions between the tagging polymorphisms in the VDR (22 tag SNPs) and RXRG (23 tag SNPs) genes on metabolic outcomes such as body mass index, waist circumference, waist-hip ratio (WHR), high- and low-density lipoprotein (LDL) cholesterols, serum triglycerides, systolic and diastolic blood pressures and glycated haemoglobin in the 1958 British Birth Cohort (1958BC, up to n = 5,231). We used Multifactor- dimensionality reduction (MDR) program as a non-parametric test to examine for potential interactions between the VDR and RXRG gene polymorphisms in the 1958BC. We used the data from Northern Finland Birth Cohort 1966 (NFBC66, up to n = 5,316) and Twins UK (up to n = 3,943) to replicate our initial findings from 1958BC
Bentho-Pelagic Divergence of Cichlid Feeding Architecture Was Prodigious and Consistent during Multiple Adaptive Radiations within African Rift-Lakes
<b>Background</b>
How particular changes in functional morphology can repeatedly promote ecological diversification is an active area of evolutionary investigation. The African rift-lake cichlids offer a calibrated time series of the most dramatic adaptive radiations of vertebrate trophic morphology yet described, and the replicate nature of these events provides a unique opportunity to test whether common changes in functional morphology have repeatedly facilitated their ecological success.<p></p>
<b>Methodology/Principal Findings</b>
Specimens from 87 genera of cichlid fishes endemic to Lakes Tanganyka, Malawi and Victoria were dissected in order to examine the functional morphology of cichlid feeding. We quantified shape using geometric morphometrics and compared patterns of morphological diversity using a series of analytical tests. The primary axes of divergence were conserved among all three radiations, and the most prevalent changes involved the size of the preorbital region of the skull. Even the fishes from the youngest of these lakes (Victoria), which exhibit the lowest amount of skull shape disparity, have undergone extensive preorbital evolution relative to other craniofacial traits. Such changes have large effects on feeding biomechanics, and can promote expansion into a wide array of niches along a bentho-pelagic ecomorphological axis.<p></p>
<b>Conclusions/Significance</b>
Here we show that specific changes in trophic anatomy have evolved repeatedly in the African rift lakes, and our results suggest that simple morphological alterations that have large ecological consequences are likely to constitute critical components of adaptive radiations in functional morphology. Such shifts may precede more complex shape changes as lineages diversify into unoccupied niches. The data presented here, combined with observations of other fish lineages, suggest that the preorbital region represents an evolutionary module that can respond quickly to natural selection when fishes colonize new lakes. Characterizing the changes in cichlid trophic morphology that have contributed to their extraordinary adaptive radiations has broad evolutionary implications, and such studies are necessary for directing future investigations into the proximate mechanisms that have shaped these spectacular phenomena
Spermatogenesis-Specific Features of the Meiotic Program in Caenorhabditis elegans
In most sexually reproducing organisms, the fundamental process of meiosis is implemented concurrently with two differentiation programs that occur at different rates and generate distinct cell types, sperm and oocytes. However, little is known about how the meiotic program is influenced by such contrasting developmental programs. Here we present a detailed timeline of late meiotic prophase during spermatogenesis in Caenorhabditis elegans using cytological and molecular landmarks to interrelate changes in chromosome dynamics with germ cell cellularization, spindle formation, and cell cycle transitions. This analysis expands our understanding C. elegans spermatogenesis, as it identifies multiple spermatogenesis-specific features of the meiotic program and provides a framework for comparative studies. Post-pachytene chromatin of spermatocytes is distinct from that of oocytes in both composition and morphology. Strikingly, C. elegans spermatogenesis includes a previously undescribed karyosome stage, a common but poorly understood feature of meiosis in many organisms. We find that karyosome formation, in which chromosomes form a constricted mass within an intact nuclear envelope, follows desynapsis, involves a global down-regulation of transcription, and may support the sequential activation of multiple kinases that prepare spermatocytes for meiotic divisions. In spermatocytes, the presence of centrioles alters both the relative timing of meiotic spindle assembly and its ultimate structure. These microtubule differences are accompanied by differences in kinetochores, which connect microtubules to chromosomes. The sperm-specific features of meiosis revealed here illuminate how the underlying molecular machinery required for meiosis is differentially regulated in each sex
Recommended from our members
Interaction between allelic variations in vitamin D receptor and retinoid X receptor genes on metabolic traits
BACKGROUND:
Low vitamin D status has been shown to be a risk factor for several metabolic traits such as obesity, diabetes and cardiovascular disease. The biological actions of 1, 25-dihydroxyvitamin D, are mediated through the vitamin D receptor (VDR), which heterodimerizes with retinoid X receptor, gamma (RXRG). Hence, we examined the potential interactions between the tagging polymorphisms in the VDR (22 tag SNPs) and RXRG (23 tag SNPs) genes on metabolic outcomes such as body mass index, waist circumference, waist-hip ratio (WHR), high- and low-density lipoprotein (LDL) cholesterols, serum triglycerides, systolic and diastolic blood pressures and glycated haemoglobin in the 1958 British Birth Cohort (1958BC, up to n = 5,231). We used Multifactor- dimensionality reduction (MDR) program as a non-parametric test to examine for potential interactions between the VDR and RXRG gene polymorphisms in the 1958BC. We used the data from Northern Finland Birth Cohort 1966 (NFBC66, up to n = 5,316) and Twins UK (up to n = 3,943) to replicate our initial findings from 1958BC.
RESULTS:
After Bonferroni correction, the joint-likelihood ratio test suggested interactions on serum triglycerides (4 SNP - SNP pairs), LDL cholesterol (2 SNP - SNP pairs) and WHR (1 SNP - SNP pair) in the 1958BC. MDR permutation model testing analysis showed one two-way and one three-way interaction to be statistically significant on serum triglycerides in the 1958BC. In meta-analysis of results from two replication cohorts (NFBC66 and Twins UK, total n = 8,183), none of the interactions remained after correction for multiple testing (Pinteraction >0.17).
CONCLUSIONS:
Our results did not provide strong evidence for interactions between allelic variations in VDR and RXRG genes on metabolic outcomes; however, further replication studies on large samples are needed to confirm our findings
Factors associated with long‐term antiretroviral therapy attrition among adolescents in rural Uganda: a retrospective study
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138247/1/jia20841.pd
- …