November 19th, 2009 by MVH
Bieler, T. R., Crimp, M., Yang, Y., Wang, L., Eisenlohr, P., Mason, D. E., et al. (2009). Strain Heterogeneity and Damage Nucleation at Grain Boundaries During Monotonic Deformation in Commercial Purity Titanium. Journal of Metals, 61(12).
Abstract: Heterogeneous strain was analyzed in polycrystalline, commercial-purity titanium using many experimental techniques that provide information about microstructure, dislocation arrangement, grain orientation, orientation gradients, surface topography, and local strain gradients. The recrystallized microstructure with 50-200 µm grains was extensively characterized before and after deformation using 4-point bending to strains between 2% and 15%. Extremely heterogeneous deformation occurred along some grain boundaries, leading to orientation gradients exceeding 10° over 10-20 µm. Patches of highly characterized microstructure were modeled using crystal plasticity finite element (CPFE) analysis to simulate the deformation to evaluate the ability of the CPFE model to capture local deformation processes. Damage nucleation events were identified that are associated with twin interactions with grain boundaries. Progress toward identifying fracture initiation criteria based upon slip and twin interactions with grain boundaries is illustrated with related CPFE simulations of deformation in a TiAl alloy.
Tags: 2009, Darren Mason, Mathematics and Computer Science
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November 5th, 2009 by MVH
Guenin-Lelle, D., & Harris, A. (2009). The Role of Music Festivals in the Cultural Renaissance of Southwest Louisiana in the Late Twentieth Century. Louisiana History, 50(4), 461-472.
Albion College Student Co-author: Alison Harris, ‘04
Tags: 2009, Dianne Guenin-Lelle, Modern Languages and Cultures
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October 30th, 2009 by MVH
Myers, P. (2009). Leopold Von Schroeder’s Imagined India: Buddhist Spirituality and Christian Politics During the Wilhelmine Era. German Studies Review, 32(3), 619-636.
Abstract: Since the late eighteenth-century, India had served as a backdrop for German intellectuals to project stressful cultural transformations in Germany. Thus an 1876 play by the Indologist Leopold von Schroeder (1851-1920), Konig Sundara, embraced Buddhism at the height of the Kulturkampf in an attempt to reconstitute spirituality under threat. Yet a decade later the same author denigrated Buddhism and Eastern thought vis-a-vis Christianity in an adamant readoption of Christian historical mandates. This suggests that much of the famed German fascination with the high culture and religions of India was “Orientalist” and yielded swiftly to a militant reassertion of Christianity in a climate of growing colonialist consciousness.
Tags: 2009, Modern Languages and Cultures, Perry Myers
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October 19th, 2009 by MVH
Bieler, C. R., Janda, K. C., Hernandez-Lamoneda, R., & Roncero, O. (2009). NeCl2 and ArCl2: Transition from Direct Vibrational Predissociation to Intramolecular Vibrational Relaxation and Electronic Nonadiabatic Effects. Journal of Physical Chemistry A.
Abstract: Pump-probe results are reported for NeCl2 excited to the Cl2 B state, undergoing vibrational predissociation, and then probed via E ← B transitions. Intensities, lifetimes and product vibrational branching ratios are reported for 16 ≤ v′ ≤ 19 Cl2 stretching quanta. The intensity of the signal rapidly decreases above v′ = 17. Detailed wave packet calculations of the vibrational predissociation dynamics are performed to determine if the experimental results can be explained by the onset of IVR dynamics. The calculations and the experiment are in close accord for low vibrational levels. For higher levels, some, but not all, of the loss of experimental signal can be attributed to IVR. To test whether electronic relaxation dynamics are important for NeCl2 and ArCl2, excited state potential surfaces that incorporate spin orbit coupling effects are calculated. These surfaces are then used in a wave packet calculation that includes both vibrational predissociation and electronic predissociation dynamics. The results show that electronic predissociation is important for ArCl2 levels above v′ = 12. For NeCl2 the calculation suggests that the onset of electronic predissociation should occur for levels as low as v′ = 13 but may not contribute markedly to the observed loss of signal above v′ = 17. Suggestions are made for further studies of this puzzling problem.
Tags: 2009, Chemistry, Craig Bieler
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October 19th, 2009 by MVH
McKay, R., Browne, G., Carter, L., Cowan, E., Dunbar, G., Wilch, T., et al. (2009). The Stratigraphic Signature of the Late Cenozoic Antarctic Ice Sheets in the Ross Embayment. Geological Society of America Bulletin, 121(11-12), 1537-1561.
Abstract: A 1284.87-m-long sediment core (AND-1B) from beneath the McMurdo sector of the Ross Ice Shelf provides the most complete single section record to date of fluctuations of the Antarctic Ice Sheets over the last 13 Ma. The core contains a succession of subglacial, glacimarine, and marine sediments that comprise ~58 depositional sequences of possible orbital-scale duration. These cycles are constrained by a chronology based on biostratigraphic, magnetostratigraphic, and 40Ar/39Ar isotopic ages. Each sequence represents a record of a grounded ice-sheet advance and retreat cycle over the AND-1B drill site, and all sediments represent subglacial or marine deposystems with no subaerial exposure surfaces or terrestrial deposits. On the basis of characteristic facies within these sequences, and through comparison with sedimentation in modern glacial environments from various climatic and glacial settings, we identify three facies associations or sequence “motifs” that are linked to major changes in ice-sheet volume, glacial thermal regime, and climate. Sequence motif 1 is documented in the late Pleistocene and in the early Late Miocene intervals of AND-1B, and it is dominated by diamictite of subglacial origin overlain by thin mudstones interpreted as ice-shelf deposits. Motif 1 sequences lack evidence of subglacial meltwater and represent glaciation under cold, “polar”-type conditions. Motif 2 sequences were deposited during the Pliocene and early Pleistocene section of AND-1B and are characterized by subglacial diamictite overlain by a relatively thin proglacial-marine succession of mudstone-rich facies deposited during glacial retreat. Glacial minima are represented by diatom-bearing mudstone, and diatomite. Motif 2 represents glacial retreat and advance under a “subpolar” to “polar” style of glaciation that was warmer than present, but that had limited amounts of subglacial meltwater. Sequence motif 3 consists of subglacial diamictite that grades upward into a 5- to 10-m-thick proglacial retreat succession of stratified diamictite, graded conglomerate and sandstone, graded sandstone, and/or rhythmically stratified mudstone. Thick mudstone intervals, rather than diatomite-dominated deposition during glacial minima, suggest increased input of meltwater from nearby terrestrial sources during glacial minima. Motif 3 represents Late Miocene “subpolar”-style glaciation with significant volumes of glacially derived meltwater.
Tags: 2009, Geological Sciences, Thom Wilch
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October 19th, 2009 by MVH
MisiolÌek, A. W., Ichimura, A. S., Gentner, R. A., Huang, R. H., McCaffrey, V. P., & Jackson, J. E. (2009). Building Blocks for Molecule-Based Magnets: Radical Anions and Dianions of Substituted 3,6-Dimethylenecyclohexane-1,2,4,5-Tetrones as Paramagnetic Bridging Ligands. Inorganic Chemistry, 48(18), 9005-9017.
Abstract: We have prepared four tetraaryl derivatives of 3,6-dimethylene-1,2,4,5-tetraoxocyclohexane (aryl = Ph; 4-MeOPh; 4-Me2NPh; and 3,5-(t-Bu)2-4-MeOPh) with guidance from an earlier reported ab initio analysis (Misiolek, A. W.; Jackson, J. E. J. Am. Chem. Soc. 2001, 123, 4774-4780). These electron acceptors may be chemically or electrochemically reduced to the mono- and dianions desired as building blocks for the assembly of molecule-based magnets. Cyclic voltammetry shows that the potential of the first reduction wave depends on the electron donor ability of the aryl ring substituents, ranging from -0.28 V for the tetraphenyl derivative to -0.78 V for the p-dimethylamino substituted analogue (vs ferrocene/ferrocinium+ at 0.46 V). Spin density distributions in the semiquinone moieties were elucidated by electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) observations of hyperfine couplings to internal 1H sites and bound alkali metal cations. X-ray diffraction studies of the sodium and potassium salts of the octa-t-butyltetramethoxy derivative reveal the structure of the monoanion and its tendency to self-assemble with metal cations into one-dimensional chains in the solid state. Within the chains the anions display the expected bridging and chelating mode of coordination; SQUID magnetometry revealed weak intermolecular spin-spin couplings of 2J = -0.2 and ~0 K for the sodium and potassium salts, respectively. NIR transitions in the electronic spectra of the monoanions in solution are consistent with the expected low energy gap between frontier orbitals and its tunability by substituent variations. EPR studies of the free dianions and monoradical analogues indicate diradical localization into separate triphenylmethyl-like monoradicals via twisting of the diarylmethylene termini.
Tags: 2009, Chemistry, Vanessa McCaffrey
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October 19th, 2009 by MVH
Zellner, N. E. B., Delano, J. W., Swindle, T. D., Barra, F., Olsen, E., & Whittet, D. C. B. (2009). Apollo 17 Regolith, 71501,262: A Record of Impact Events and Mare Volcanism in Lunar Glasses. Meteoritics and Planetary Science, 44(6), 839-851.
Abstract: Thirteen glasses from Apollo 17 regolith 71501,262 have been chemically analyzed by electron microprobe and isotopically dated with the 40Ar/39Ar dating method. We report here the first isotopic age obtained for the Apollo 17 very low titanium (VLT) volcanic glasses, 3630 ± 40 Ma. Twelve impact glasses that span a wide compositional range have been found to record ages ranging from 102 ± 20 Ma to 3740 ± 50 Ma. The compositions of these impact glasses show that some have been produced by impact events within the Apollo 17 region, whereas others appear to be exotic to the
landing site. As the data sets that include compositions and ages of lunar impact glasses increase, the impact history in the Earth-Moon system will become better constrained.
Tags: 2009, Astronomy, Nicolle Zellner, Physics
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September 28th, 2009 by MVH
Togunde, D., & Rinkinen, J. (2009). Agents of Change: Gender Differences in Migration Intentions among University Undergraduates in Nigeria. International Journal of Interdisciplinary Social Sciences, 4(2), 175-190.
Abstract: This paper draws on surveys/interviews with 678 Nigerian university undergraduates to examine migration intentions and to detect if gender differences exist in reasons to migrate (or not) to the United States. This study is unique by focusing on future migration among university students, whose views and migration plans have been neglected in previous studies. As a departure from few previous scholarships in Africa, the paper introduces two new variables: perception of America as a land of socio-economic opportunities and whether respondents actively participate in the U.S. Visa Lottery Program. Findings indicate that a higher proportion of males than females cites better employment opportunities as reason for planning to move. However, more females than males mention security and better infrastructures available in America as motives for wanting to emigrate within the next five years. A higher proportion of women than men mention social and cultural ties with homeland and perception of racism in America as factors discouraging them from wanting to live in the United States; whereas, more men than women wanting to stay in Nigeria refer to patriotism/love of homeland as reasons. Perception of America as a land of opportunities and active participation in the U.S. Visa Lottery Program are among significant predictors of intentions to migrate. Findings have implications for policies aimed at improving quality of life in Nigeria, thereby, reducing emigration of “future leaders of tomorrow”.
Albion College student co-author: Jacob Rinkinen, ‘11
Tags: 'Dimeji Togunde, 2009, Anthropology/Sociology, Student Co-Authored Publications
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September 18th, 2009 by MVH
Waria, M., Comfort, S. D., Onanong, S., Satapanajaru, T., Boparai, H., Harris, C., et al. (2009). Field-Scale Cleanup of Atrazine and Cyanazine Contaminated Soil with a Combined Chemical-Biological Approach. Journal of Environmental Quality, 38(5), 1803-1811.
Abstract: A former agrichemical dealership in western Nebraska was suspected of having contaminated soil. Our objective was to characterize and remediate the contaminated site by a combined chemical-biological approach. This was accomplished by creating contour maps of the on-site contamination, placing the top 60 cm of contaminated soil in windrows and mixing with a mechanical high-speed mixer. Homogenized soil containing both atrazine [6-chloro-N-ethyl-N'-isopropyl-1,3,5-triazine-2,4-diamine] and cyanazine {2-[[4-chloro-6-(ethylamino)- 1,3,5-triazin-2-yl] amino]-2-methylpropanenitrile} was then used in laboratory investigations to determine optimum treatments for pesticide destruction. Iron suspension experiments verified that zerovalent iron (Fe-0) plus ferrous Sulfate (FcSO(4)center dot 7H(2)O) removed more than 90% of both atrazine and cyanazine within 14 d. Liquid chromatography/mass spectrometry (LC/MS) analysis of the atrazine solution after treating with Fe-0 and ferrous sulfate identified several degradation products commonly associated with biodegradation (i.e., deethlyarrazine (DEA), deisopropylatrazine (DIA), hydroxyatrazine (HA), and ammelines). Biological treatment evaluated emulsified soybean [Glycine max (L.) Merr.] oil (EOS) as a carbon source to stimulate biodegradation in static soil microcosms. Combining emulsified soybean oil with the chemical amendments resulted in higher destruction efficiencies (80-85%) and reduced the percentage of FeSO4 needed. This chemical-biological treatment (Fe-0 + FeSO4 + EOS, EOS Remediation, Raleigh, NC) was then applied with water to 275 m(3) of contaminated soil in the field. Windrows were rightly covered with clear plastic to increase soil temperature and maintain soil water content. Temporal sampling (0-342 d) revealed atrazine and cyanazine concentrations decreased by 79 to 91%. These results provide evidence that a combined chemical-biological approach can be used for on-site, field-scale treatment of pesticide-contaminated soil.
Tags: 2009, Chemistry, Cliff Harris
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September 18th, 2009 by MVH
Zabel, K. L., Christopher, A. N., Marek, P., Wieth, M. B., & Carlson, J. J. (2009). Mediational Effects of Sensation Seeking on the Age and Financial Risk-Taking Relationship. Personality and Individual Differences, 47(8), 917-921.
Abstract: The current study examined the potential mediating role of sensation seeking in the well-established negative relationship between age and financial risk-taking. A total of 299 participants, aged 17-90years, allocated hypothetical money into mutual funds that varied in risk and completed a sensation seeking measure. Hierarchical multiple regressions revealed that the amount of variability age accounted for in risk-taking (4.1%; [beta] =-.22) was significantly reduced when sensation seeking was controlled for (0.8%; [beta] =-.12). A Sobel test revealed that sensation seeking fully mediated the aforementioned relationship. Results suggest sensation seeking’s role as a mediator in more physiologically arousing risk-taking contexts (e.g., surfing). Discussion recommends investigating potential biologically and cognitively-rooted mediators and moderators of the age and risk-taking relationship.
Tags: 2009, Drew Christopher, Jacqueline Carlson, Mareike Wieth, Psychology
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September 18th, 2009 by MVH
Oswald, K. R. (2008). “An Urban Picaro in Transitional Barcelona: Eduardo Mendoza’s El ‘Misteriode La Cripta Embrujada’ and El ‘Laberinto De Las Aceitunas’”. Confluencia-Revista Hispanica De Cultura Y Literatura, 23(2), 32-45.
Tags: 2008, Kalen Oswald, Modern Languages and Cultures
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September 18th, 2009 by MVH
Cocks, G. (2007). The Institute : A Novel. Bloomington, IN: AuthorHouse.
Tags: 2007, Geoffrey Cocks, History
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September 18th, 2009 by MVH
Christopher, A. N., Lasane, T. P., Troisi, J. D., & Park, L. E. (2007). Materialism, Defensive and Assertive Self-Presentational Tactics, and Life Satisfaction. Journal of Social and Clinical Psychology, 26(10), 1145-1162.
Abstract: To learn how materialism is related to defensive and assertive self-presentational tactics, and how such tactics might mediate the established link between materialism and life satisfaction, 277 undergraduates completed a battery of questionnaires. We expected that materialism would be positively related to the use of defensive self-presentational tactics, and that defensive self-presentational tactics, in turn, would mediate the relationship between materialism and life satisfaction. Zero-order correlations generally supported these expectations. Moreover, results of structural equation modeling suggested that it was primarily the defensive self-presentational tactic of self-handicapping that mediated the relationship between materialism and life satisfaction. We discuss our findings with respect to the protective penchant of materialistic individuals.
Albion College student co-author: Jordan Troisi, ‘06
Tags: 2007, Drew Christopher, Psychology, Student Co-Authored Publications
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September 18th, 2009 by MVH
Kanter, D. (2006). “Their Hair Was Curly” : Afro-Mexicans in Indian Villages, Central Mexico, 1700-1820. In T. Miles & S. P. Holland (Eds.), Crossing Waters, Crossing Worlds : The African Diaspora in Indian Country. Durham: Duke University Press.
Tags: 2006, Deborah Kanter, History
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September 18th, 2009 by MVH
Hakes, J. K., & Clapp, C. M. (2006). The Edifice Complex: The Economics of Public Subsidization of Major League Baseball Facilities. International Journal of Sport Finance, 1(2), 77-95.
Abstract: Using a panel of Major League Baseball team attendance data for the period 1950 to 2003, the authors determined that after controlling for team quality and other factors, a new modern era ballpark adds 22 to 30 percent to total attendance over a 10-year period and, on average, generated present-value stadium revenues of $272 million for the franchise. Since the construction costs for the group of 14 modern ballparks averaged $99 million in private money and $198 million in public funds, there were two results with important implications for public finance. First, the revenue estimates were less than the typical cost of most modern stadiums, indicating that the projects generated positive rents for team owners only due to public subsidization. Second, the ratio of recipient benefits to subsidy expenses indicated that public spending on construction of replacement stadiums was a less effective method for subsidizing franchise owners than direct lump-sum payments. Furthermore, the preference for stadium project subsidies over cash subsidies can not be explained by the desire of local officials to improve the quality-of-play of the team. Due to non-complementarity between new stadiums and team success, team profits are maximized when an owner “pockets” increases in revenue rather than reinvesting in the team’s level of on-field quality.
Tags: 2006, Economics and Management, Jahn Hakes
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September 18th, 2009 by MVH
Degel, K., & McCurdy, D. G. (2006). Impacts of Temperature on Emergence of Trematode Cercariae from the Mud Snail Ilyanassa Obsoleta (Say). MarSci(3).
Abstract: We assessed prevalence of trematode parasites and impacts of temperature on shedding of parasites infecting mud snails, Ilyanassa obsoleta (Say), collected from Maine. Six species of trematodes were found to infect mud snails: Austrobilharzia variglandis, Zoögonus rubellus, Stephanostomum tenue, Gynaecotyla adunca, Himasthla quissetensis, and Lepocreadium setiferoides. As predicted, snails were more likely to shed cercarial forms of six species of trematodes when experimentally exposed to elevated water temperatures for single 24-hour periods. We argue that even small-scale changes in temperature might have implications for individuals and populations of marine animals that serve as second-intermediate hosts and final hosts of trematodes shed by infected mud snails (e.g., clams, baitworms, birds, fish, humans). We also establish new northern limits for several species of marine trematodes.
Tags: 2006, Biology, Dean McCurdy
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September 18th, 2009 by MVH
Cocks, G., Diedrick, J., & Perusek, G. W. (Eds.). (2006). Depth of Field: Stanley Kubrick, Film, and the Uses of History. Madison, WI: University of Wisconsin Press.
Tags: 2006, English, Geoffrey Cocks, Glenn Perusek, History, James Diedrick, Political Science
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September 17th, 2009 by MVH
Mourad, R. (2005). Transcendental arguments and justified Christian belief. Lanham, Md.: University Press of America.
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July 29th, 2009 by MVH
Detert, J. R., Trevino, L. K., & Sweitzer, V. L. (2008). Moral Disengagement in Ethical Decision Making: A Study of Antecedents and Outcomes. Journal of Applied Psychology, 93(2), 374-391.
Abstract: This article advances understanding of the antecedents and outcomes of moral disengagement by testing hypotheses with 3 waves of survey data from 307 business and education undergraduate students. The authors theorize that 6 individual differences will either increase or decrease moral disengagement, defined as a set of cognitive mechanisms that deactivate moral self-regulatory processes and thereby help to explain why individuals often make unethical decisions without apparent guilt or self-censure (Bandura, 1986). Results support 4 individual difference hypotheses, specifically, that empathy and moral identity are negatively related to moral disengagement, while trait cynicism and chance locus of control orientation are positively related to moral disengagement. Two additional locus of control orientations are not significantly related to moral disengagement. The authors also hypothesize and find that moral disengagement is positively related to unethical decision making. Finally, the authors hypothesize that moral disengagement plays a mediating role between the individual differences they studied and unethical decisions. Their results offer partial support for these mediating hypotheses. The authors discuss the implications of these findings for future research and for practice.
Tags: 2008, Economics and Management, Vicki Sweitzer
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July 28th, 2009 by MVH
Ariza, D., & Berkey, L. (2009). Constructing “Multiple” Conceptions of Blackness: A Case Study of How African American Students Contest Identity at a Predominantly White Liberal Arts College in the United States. Journal of International Social Research, 2(8), 42-59.
Abstract: This article uses qualitative methods and a longitudinal time frame to examine the process of racial identity formation among African American students at a selective liberal arts college. It examines theories of racial identity development and performance, fictive kinship and racial authenticity, and the intersectionality of race and gender. The results demonstrate that students’ performances of blackness are dynamic and context-specific, but that they primarily reflect the struggle to resist stereotypes and to maintain racial authenticity. It is also evident that racial identity development is inextricably tied to gender identity, and that black male and female college experiences diverge sharply.
Tags: 2009, Anthropology/Sociology, Diana Ariza, Ethnic Studies, Len Berkey
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July 7th, 2009 by MVH
Altermann, S. M., Richardson, R. D., Page, T. K., Schmidt, R. K., Holland, E., Mohammed, U., Paradine, S. M., French, A. N., et al. (2008). Catalytic Enantioselective alpha-Oxysulfonylation of Ketones Mediated by Iodoarenes. European Journal of Organic Chemistry(31), 5315-5328.
Abstract: The alpha-oxysulfonylation of ketones catalysed by enantio enriched iodoarenes using mCPBA as stoichiometric oxidant is reported to give useful synthetic intermediates in good yield and modest enantioselectivity. We believe this to be the first report of an enantioselective organocatalytic reaction involving hypervalent iodine reagents which should open up a new field for enantioselective organocatalysis of oxidation reactions.
Albion College student co-author: Shauna Paradine, ‘08
Tags: 2008, Andrew French, Chemistry, Student Co-Authored Publications
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July 6th, 2009 by MVH
Satapanajaru, T., Onanong, S., Comfort, S. D., Snow, D. D., Cassada, D. A., & Harris, C. (2009). Remediating Dinoseb-Contaminated Soil with Zerovalent Iron. Journal of Hazardous Materials, 168(2-3), 930-937.
Abstract: Dinoseb, a dinitroherbicide, was once commonly used in aerial crop dusting of agronomic crops in the western United States. Widespread use combined with improper disposal practices at rural air strips has contaminated numerous sites. Our objective was to determine if zerovalent iron (Fe0) could remediate dinoseb-contaminated soil. This was accomplished by conducting a series of batch experiments where we first determined if Fe0 could remove dinoseb in aqueous solutions, then in contaminated soil slurries, and finally, in unsaturated soil microcosms (25 °C, [theta]g = 0.30 kg H2O kg-1). Results showed quantitative dinoseb removal in the presence of Fe0 in all three media (aqueous solutions, soil slurries, moist soils) and that removal increased by including either ferrous or aluminum sulfate with the iron treatment. Incubating contaminated soils with Fe0 or Fe0 plus salts (FeSO4 or Al2(SO4)3) resulted in 100% removal of dinoseb within 7 d. Liquid chromatography/mass spectrometry (LC/MS) analysis of degradation products showed the transformations imposed by the iron treatments were reduction of one or both nitro groups to amino groups. These amino degradation products were further transformed to quinonimine and benzoquinone and did not persist. These results support the use of zerovalent iron for on-site treatment of dinoseb-contaminated soil.
Tags: 2009, Chemistry, Cliff Harris
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June 26th, 2009 by MVH
Qian, Y., & Daniels, T. D. (2008). A Communication Model of Employee Cynicism toward Organizational Change. Corporate Communications, 13(3), 319.
Abstract: Purpose – The study was designed to generate and test a model of employee cynicism toward organizational change from the communication perspective in a higher education institution. Design/methodology/approach – Using the theoretical framework of social information processing (SIP), the study investigated the communication processes in the social context, which contributed to employee cynicism toward organizational change in the higher education setting. Path analysis was used to test the overall model fit. Findings – The findings suggest that the three variables, perceived quality of information, cynicism of colleagues, and trust in the administration, predict change-specific cynicism, which, in turn, lead to intention to resist change. Research limitations/implications – As an initial attempt to explain employee cynicism toward organizational change in higher education settings, this model inevitably has loose ends. Further research is needed to expand the model from a communication perspective. Practical implications – The research provided administrators with strategies and advices to cope with employee cynicism during organizational change. Originality/value – This is the first known study to examine the concept of change-specific cynicism within the theoretical framework of SIP. It points to a new direction which warrants the attention of communication scholars.
Tags: 2008, Communication Studies, Yuxia Qian
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June 25th, 2009 by MVH
Zellner, N. E. B., Delano, J. W., Swindle, T. D., Barra, F., Olsen, E., & Whittet, D. C. B. (2009). Evidence from 40Ar/39Ar Ages of Lunar Impact Glasses for an Increase in the Impact Rate ~800 Ma Ago. Geochimica et Cosmochimica Acta, 73(15), 4590-4597.
Abstract: Geochemical and 40Ar/39Ar data on nine impact glasses from the Apollo 14, 16, and 17 landing sites indicate at least seven distinct impact events with ages 
800 Ma. Rock fragments analyzed by Barra et al. [Barra F., Swindle T. D., Korotev R. L., Jolliff B. L., Zeigler R. A., and Olsen E. (2006) 40Ar–39Ar dating of Apollo 12 regolith: implications for the age of Copernicus and the source of nonmare materials, Geochim. Cosmochim. Acta, 70, 6016–6031] from the Apollo 12 landing site and some Apollo 12 spherules reported by Levine et al. [Levine J., Becker T. A., Muller R. A., Renne P. R. (2005) 40Ar/39Ar dating of Apollo 12 impact spherules, Geophys. Res. Let., 32, L15201, doi: 10.1029/2005GL022874.] show 800 Ma ages, close to the accepted age of the Copernicus event, 800 ± 15 Ma [Bogard D. D., Garrison D. H., Shih C. Y., and Nyquist L. E. (1994) 39Ar–40Ar dating of two lunar granites: The age of Copernicus, Geochim. Cosmochim. Acta, 58, 3093–3100]. These Apollo 12 samples are thought to have been affected by material from the Copernicus event since there is a Copernicus ray going through the Apollo 12 landing site. When all of these data are viewed collectively, including an Apollo 16 glass bomb [Borchardt R., Stöffler D., Spettel B., Palme H. and Wänke H. (1986) Composition, structure, and age of the Apollo 16 subregolith basement as deduced from the chemistry of post-Imbrium melt bombs. In Proceedings, 17th Lunar and Planetary Science Conference, pp. E43–E54], and in the context of diverse compositional range and sample location, there is a suggestion that there may have been a transient increase in the global lunar impact flux at 800 Ma. Therefore, the Copernicus impact event could have been one of many. If correct, there should be evidence for this increased impact flux around 800 Ma ago in the age statistics of terrestrial impact samples.
Tags: 2009, Astronomy, Nicolle Zellner, Physics
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June 24th, 2009 by MVH
Light, M. T., & Togunde, D. (2008). The Mexican Immigration Debate: Assimilation and Public Policy. International Review of Modern Sociology, 34(2), 279-293.
Abstract: This paper navigates through the contentious issues surrounding the contemporary Mexican immigration debate. It argues that an effective and practical immigration policy reform requires an understanding of the empirical reality of Mexican immigration rather than sweeping generalizations that exist in the literature. It focuses on a dual task of presenting a review of U.S. current and past policies on immigration; and an examination of data measuring Mexican assimilation. Findings indicate that previous immigration policies laid the groundwork for the current immigration picture; and that the measures of assimilation clearly indicate that Mexican immigrants are acculturating to the United States. It concludes that the politicization of immigration would make a comprehensive immigration reform difficult to achieve, leading to future increase in Mexican illegal immigration flows.
Michael Light is an Albion College graduate, Class of 2007.
Tags: 'Dimeji Togunde, 2008, Anthropology/Sociology
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Melzer, S. (2009).