365 research outputs found
Aristotle on the Αρχή of Practical Reasoning: Countering the Influence of Sub-Humeanism
My central aim is to show that Aristotle convincingly avoids what has been the linchpin of the dominant contemporary view of the starting point of practical reasoning: that practical reasoning must begin, both normatively and motivationally, with some desire or want (call this sub-Humeanism). My task is made more difficult by the presence of a now common interpretation of Aristotle himself in which desire is both normatively and motivationally super-ordinate. On this view, Aristotle cannot be a genuine alternative to the contemporary view, since he just is a contemporary: Aristotle is the first sub-Humean about practical reasoning.
In order to show that Aristotle is a genuine alternative to the dominant contemporary view, I must recover (or construct) an Aristotle as far as possible untainted by modem philosophical psychology. That is, I must provide an alternative interpretation. My interpretation will rest on three moves: 1) Taking EN as the paradigmatic account of practical reasoning, and interpreting DA and DMA from that stance; 2) Examining the language which Aristotle uses for clues to his position; 3) Distinguishing between two respects in which practical reasoning might be said to have an άρχή: in respect of its moving the agent, and in respect of its character as reasoning
Spiritual Formation in the Graduate School of Clinical Psychology at George Fox University
At its inception, the training model in the Graduate School of Clinical Psychology (GSCP) at George Fox University was informed by the approach inaugurated at Fuller Theological Seminary School of Psychology in the 1960s. In the original model, training in Christian religion/spirituality and theology accompanied training in professional psychology. In the interim, our culture, psychological knowledge, perceived psychological needs, and training programs have changed greatly. Here we report changes in religion/spirituality (RIS) training and integration over the last two decades. We describe our current spiritual formation structure and process, and program evaluation efforts. Over the past several years the GSCP has shifted from relying mainly on a cognitive approach involving Bible and theology courses (theoretical-conceptual integration) toward a more personal-experiential approach that includes team teaching of the theology and religion courses, an individualized spiritual direction experience spread over two years, and more intentional integration of RIS and spiritual formation components throughout the program. We anticipate this may be an ongoing area for further development in coming years as we seek to meet the needs of a changing student body with greater RIS diversity and largely postmodern worldviews
Controlling a Telescope Chopping Secondary Mirror Assembly Using a Signal Deconvolution Technique
We describe a technique for improving the response of a telescope chopping
secondary mirror assembly by using a signal processing method based on the Lucy
deconvolution technique. This technique is general and could be used for any
systems, linear or non-linear, where the transfer function(s) can be measured
with sufficient precision. We demonstrate how the method was implemented and
show results obtained at the Caltech Submillimeter Observatory using different
chop throw amplitudes and frequencies. No intervention from the telescope user
is needed besides the selection of the chop throw amplitude and frequency. All
the calculations are done automatically once the appropriate command is issued
from the user interface of the observatory's main computer.Comment: 17 pages, 6 figure
Regulation of chemotropic guidance of nerve growth cones by microRNA.
BACKGROUND: The small non-coding microRNAs play an important role in development by regulating protein translation, but their involvement in axon guidance is unknown. Here, we investigated the role of microRNA-134 (miR-134) in chemotropic guidance of nerve growth cones. RESULTS: We found that miR-134 is highly expressed in the neural tube of Xenopus embryos. Fluorescent in situ hybridization also showed that miR-134 is enriched in the growth cones of Xenopus spinal neurons in culture. Importantly, overexpression of miR-134 mimics or antisense inhibitors blocked protein synthesis (PS)-dependent attractive responses of Xenopus growth cones to a gradient of brain-derived neurotrophic factor (BDNF). However, miR-134 mimics or inhibitors had no effect on PS-independent bidirectional responses of Xenopus growth cones to bone morphogenic protein 7 (BMP7). Our data further showed that Xenopus LIM kinase 1 (Xlimk1) mRNA is a potential target of miR-134 regulation. CONCLUSIONS: These findings demonstrate a role for miR-134 in translation-dependent guidance of nerve growth cones. Different guidance cues may act through distinct signaling pathways to elicit PS-dependent and -independent mechanisms to steer growth cones in response to a wide array of spatiotemporal cues during development.RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are
Subsurface structure of Planum Boreum from Mars Reconnaissance Orbiter Shallow Radar soundings
We map the subsurface structure of Planum Boreum using sounding data from the Shallow Radar (SHARAD) instrument onboard the Mars Reconnaissance Orbiter. Radar coverage throughout the 1,000,000- km2 area reveals widespread reflections from basal and internal interfaces of the north polar layered deposits (NPLD). A dome-shaped zone of diffuse reflectivity up to 12 ls (1-km thick) underlies twothirds of the NPLD, predominantly in the main lobe but also extending into the Gemina Lingula lobe across Chasma Boreale. We equate this zone with a basal unit identified in image data as Amazonian sand-rich layered deposits [Byrne, S., Murray, B.C., 2002. J. Geophys. Res. 107, 5044, 12 pp. doi:10.1029/2001JE001615; Fishbaugh, K.E., Head, J.W., 2005. Icarus 174, 444–474; Tanaka, K.L., Rodriguez, J.A.P., Skinner, J.A., Bourke, M.C., Fortezzo, C.M., Herkenhoff, K.E., Kolb, E.J., Okubo, C.H., 2008. Icarus 196, 318–358]. Elsewhere, the NPLD base is remarkably flat-lying and co-planar with the exposed surface of the surrounding Vastitas Borealis materials. Within the NPLD, we delineate and map four units based on the radar-layer packets of Phillips et al. [Phillips, R.J., and 26 colleagues, 2008. Science 320, 1182– 1185] that extend throughout the deposits and a fifth unit confined to eastern Gemina Lingula. We estimate the volume of each internal unit and of the entire NPLD stack (821,000 km3), exclusive of the basal unit. Correlation of these units to models of insolation cycles and polar deposition [Laskar, J., Levrard, B., Mustard, J.F., 2002. Nature 419, 375–377; Levrard, B., Forget, F., Montmessin, F., Laskar, J., 2007. J. Geophys. Res. 112, E06012, 18 pp. doi:10.1029/2006JE002772] is consistent with the 4.2-Ma age of the oldest preserved NPLD obtained by Levrard et al. [Levrard, B., Forget, F., Montmessin, F., Laskar, J., 2007. J. Geophys. Res. 112, E06012, 18 pp. doi:10.1029/2006JE002772]. We suggest a dominant layering mechanism of dust–content variation during accumulation rather than one of lag production during periods of sublimation
The Holy Grail: A road map for unlocking the climate record stored within Mars' polar layered deposits
In its polar layered deposits (PLD), Mars possesses a record of its recent climate, analogous to terrestrial ice sheets containing climate records on Earth. Each PLD is greater than 2 km thick and contains thousands of layers, each containing information on the climatic and atmospheric state during its deposition, creating a climate archive. With detailed measurements of layer composition, it may be possible to extract age, accumulation rates, atmospheric conditions, and surface activity at the time of deposition, among other important parameters; gaining the information would allow us to “read” the climate record. Because Mars has fewer complicating factors than Earth (e.g. oceans, biology, and human-modified climate), the planet offers a unique opportunity to study the history of a terrestrial planet’s climate, which in turn can teach us about our own planet and the thousands of terrestrial exoplanets waiting to be discovered.
During a two-part workshop, the Keck Institute for Space Studies (KISS) hosted 38 Mars scientists and engineers who focused on determining the measurements needed to extract the climate record contained in the PLD. The group converged on four fundamental questions that must be answered with the goal of interpreting the climate record and finding its history based on the climate drivers.
The group then proposed numerous measurements in order to answer these questions and detailed a sequence of missions and architecture to complete the measurements. In all, several missions are required, including an orbiter that can characterize the present climate and volatile reservoirs; a static reconnaissance lander capable of characterizing near surface atmospheric processes, annual accumulation, surface properties, and layer formation mechanism in the upper 50 cm of the PLD; a network of SmallSat landers focused on meteorology for ground truth of the low-altitude orbiter data; and finally, a second landed platform to access ~500 m of layers to measure layer variability through time. This mission architecture, with two landers, would meet the science goals and is designed to save costs compared to a single very capable landed mission. The rationale for this plan is presented below.
In this paper we discuss numerous aspects, including our motivation, background of polar science, the climate science that drives polar layer formation, modeling of the atmosphere and climate to create hypotheses for what the layers mean, and terrestrial analogs to climatological studies. Finally, we present a list of measurements and missions required to answer the four major questions and read the climate record.
1. What are present and past fluxes of volatiles, dust, and other materials into and out of the polar regions?
2. How do orbital forcing and exchange with other reservoirs affect those fluxes?
3. What chemical and physical processes form and modify layers?
4. What is the timespan, completeness, and temporal resolution of the climate history recorded in the PLD
Iron Mountain: A Journal of Magical Religion (Artemisia Press) 1, no.3 (Fall 1985)
Permission for the creation of this digital asset was granted by Chas S. Clifton who also graciously loaned his personal copies to be digitized for inclusion in Valdosta State University Archives and Special Collections’ New Age Movements, Occultism, and Spiritualism Research Library.
On the Slopes of Iron Mountain -- Letters to the Editors. Doreen Valiente ; Deborah Bender ; Aidan Kelly’s response to Doreen Valiente’s letter to the editor -- Designing Effective Rituals / P.E.I. Bonewits -- Moon in My Blood: The Story of the Starets Rasputin. The Death Ship ; Istinnaia Vera- THe Pure True Faith ; Brotherhood of the Wanderers ; Sunshine’s Friend ; Suppliant Petitions Strangely Fulfilled ; The Dancing Starets ; Revolt Against the Holy Devil ; Murder with the Gypsy Guitar. Part 1 ; Murder with the Gypsy Guitar. Part 2 ; The Ghost in Pargolovo Forest ; / poem by Rochelle Lynn Holt -- A Goddess Arrives: The Novels of Dion Fortune in the Development of Gardnerian Witchcraft / by Chas S. Clifton -- As I See It… Small Group Ministry / by Judy Harrow -- Book Reviews: The Occult in American: New Historical Perspectives edited by Howard Kerr and Charles L. Crow ; Voodoo Contra by Robert Gover ; Crystal Power by Michael G. Smith ; Magical Rites from the Crystal Well by Ed Fitch ; Magic, Witchcraft, and Religion: An Anthropological Study of the Supernatural edited by Arthur C. Lehmann and James E. MyersIron Mountain was Chas Clifton’s attempt to bring together the “professors and the practitioners” into a single source and provided an avenue for the Wiccans and Pagans being studied to respond to research being done on them. Although only four issues were published the contents are well stocked with articles and rebuttals from contemporary scholars and practitioners recognized as shapers of the Wiccan movement that we know today. It is a publication “devoted to the exploration of religious forms, practices, both ancient and modern, which emphasize the magical, shamanic and metaphysical elements.” Articles are topped off with reviews, poetry, artwork and photographs. It also holds the honor for being the inspiration of the first Pagan peer-reviewed Journal: The Pomegranate
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Intercomparison of middle atmospheric meteorological analyses for the Northern Hemisphere winter 2009-2010
Detailed meteorological analyses based on observations extending through the middle atmosphere (∼ 15 to 100 km altitude) can provide key information to whole atmosphere modeling systems regarding the physical mechanisms linking day-to-day changes in ionospheric electron density to meteorological variability near the Earth's surface. However, the extent to which independent middle atmosphere analyses differ in their representation of wave-induced coupling to the ionosphere is unclear. To begin to address this issue, we present the first intercomparison among four such analyses, JAGUAR-DAS, MERRA-2, NAVGEM-HA, and WACCMX+DART, focusing on the Northern Hemisphere (NH) 2009–2010 winter, which includes a major sudden stratospheric warming (SSW). This intercomparison examines the altitude, latitude, and time dependences of zonal mean zonal winds and temperatures among these four analyses over the 1 December 2009 to 31 March 2010 period, as well as latitude and altitude dependences of monthly mean amplitudes of the diurnal and semidiurnal migrating solar tides, the eastward-propagating diurnal zonal wave number 3 nonmigrating tide, and traveling planetary waves associated with the quasi-5 d and quasi-2 d Rossby modes. Our results show generally good agreement among the four analyses up to the stratopause (∼ 50 km altitude). Large discrepancies begin to emerge in the mesosphere and lower thermosphere owing to (1) differences in the types of satellite data assimilated by each system and (2) differences in the details of the global atmospheric models used by each analysis system. The results of this intercomparison provide initial estimates of uncertainty in analyses commonly used to constrain middle atmospheric meteorological variability in whole atmosphere model simulations.
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Subsurface structure of Planum Boreum from Mars Reconnaissance Orbiter Shallow Radar soundings
Searching for the elusive typhoid diagnostic
Typhoid (enteric) fever is still a common disease in many developing countries but current diagnostic tests are inadequate. Studies on pathogenesis and genomics have provided new insight into the organisms that cause enteric fever. Better understanding of the microorganisms explains, in part, why our current typhoid methodologies are limited in their diagnostic information and why developing new strategies may be a considerable challenge. Here we discuss the current position of typhoid diagnostics, highlight the need for technological improvements and suggest potential ways of advancing this area
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