April 17th, 2014 by MVH
Majure, L. C., Ionta, G. M., Skean, J. D., & Judd, W. S. (2013). New records and notes on species from Parc National Pic Macaya, Massif de la Hotte, Haiti, including a new species of Pilea (Urticaceae). Journal of the Botanical Research Institute of Texas, 7(2), 681-691.
Abstract: Nineteen species new to the flora of the Macaya Biosphere Reserve (including Parc National Pic Macaya) are reported, along with notes on five additional species. The Hispaniolan endemic Cyperus picardae is reported as new to the Massif de la Hotte, and a new species of Pilea, P. vermicularis (Urticaceae), from the Massif de la Hotte, is described and illustrated.
April 4th, 2014 by MVH
Shannon, K. M., Gage, G. J., Jankovic, A., Wilson, W. J., & Marzullo, T. C. (2014). Portable conduction velocity experiments using earthworms for the college and high school neuroscience teaching laboratory. Advances in Physiology Education, 38(1), 62-70.
Abstract: The earthworm is ideal for studying action potential conduction velocity in a classroom setting, as its simple linear anatomy allows easy axon length measurements and the worm’s sparse coding allows single action potentials to be easily identified. The earthworm has two giant fiber systems (lateral and medial) with different conduction velocities that can be easily measured by manipulating electrode placement and the tactile stimulus. Here, we present a portable and robust experimental setup that allows students to perform conduction velocity measurements within a 30-min to 1-h laboratory session. Our improvement over this well-known preparation is the combination of behaviorally relevant tactile stimuli (avoiding electrical stimulation) with the invention of minimal, low-cost, and portable equipment. We tested these experiments during workshops in both a high school and college classroom environment and found positive learning outcomes when we compared pre- and posttests taken by the students.
March 25th, 2014 by MVH
Franzen, T. (2014). Anna Howard Shaw: The Work of Woman Suffrage. Urbana, IL: University of Illinois Press.
Acknowledged by her contemporaries as the most outstanding woman suffrage orator of her time, Anna Howard Shaw (1847-1919) has nonetheless received minimal attention from historians. Trisha Franzen rectifies that oversight with this first scholarly biography of Shaw, a study that illuminates Shaw’s oft-ignored early years and challenges existing scholarship on her time in the suffrage movement.
An immigrant from a poor family, Shaw grew up in an economic reality that encouraged the adoption of non-traditional gender roles. Challenging traditional gender boundaries throughout her life, she put herself through college, worked as an ordained minister and a doctor, and built a tightly-knit family with her secretary and longtime companion Lucy E. Anthony.
Drawing on unprecedented research, Franzen shows how these circumstances and choices both impacted Shaw’s role in the woman suffrage movement and set her apart from her native-born, middle- and upper-class colleagues. Franzen also rehabilitates Shaw’s years as president of the National American Woman Suffrage Association, arguing that Shaw’s much-belittled tenure actually marked a renaissance of both NAWSA and the suffrage movement as a whole. (Publisher’s description)
February 27th, 2014 by MVH
Pifer, M., & Baker, V. (2013). Identity as a Theoretical Construct in Research about Academic Careers. In J. Huisman & M. Tight (Eds.), Theory and Method in Higher Education Research (Vol. 9, pp. 115-132): Emerald Group Publishing Limited.
Abstract: In this chapter, we review the ways in which scholars have conceptualized and relied on the notion of identity to understand the academic career. We explore the use of identity as a theoretical construct in research about the experience of being an academic. We discuss the individual and organizational factors that scholars have focused on when seeking to understand the role of professional and personal identity in academic careers, as well as recent and emerging shifts in the use of identity within this line of scholarship. Research suggests that if we are to understand the future of the academic career, we must understand the identities of its current and prospective members and, more importantly, how those identities shape goals, behaviors, and outcomes. We close with recommendations for future research and theory development.
February 13th, 2014 by MVH
Rabquer, B. J., & Koch, A. E. (2013). NK4 therapy: a new approach to target angiogenesis and inflammation in rheumatoid arthritis. Arthritis Research & Therapy, 15(5).
Abstract: Rheumatoid arthritis (RA) is a progressive autoimmune disease characterized by synovial membrane hyperplasia, inflammation, and angiogenesis. Hepatocyte growth factor (HGF) and its receptor, c-Met, are both overexpressed in the RA synovium. NK4 is an antagonist of HGF which has been shown to inhibit tumor growth, metastasis, and angiogenesis. In an experimental model of RA, NK4 gene therapy inhibited joint damage and inflammation in both preventative and therapeutic models. NK4 treatment therefore represents a possible therapeutic option in combating RA.
February 6th, 2014 by MVH
Neuberg, S. L., Warner, C. M., Mistler, S. A., Berlin, A., Hill, E. D., Johnson, J. D., et al. (2014). Religion and Intergroup Conflict: Findings From the Global Group Relations Project. Psychological Science, 25(1), 198-206.
Abstract: How might religion shape intergroup conflict? We tested whether religious infusion – the extent to which religious rituals and discourse permeate the everyday activities of groups and their members – moderated the effects of two factors known to increase intergroup conflict: competition for limited resources and incompatibility of values held by potentially conflicting groups. We used data from the Global Group Relations Project to investigate 194 groups (e.g., ethnic, religious, national) at 97 sites around the world. When religion was infused in group life, groups were especially prejudiced against those groups that held incompatible values, and they were likely to discriminate against such groups. Moreover, whereas disadvantaged groups with low levels of religious infusion typically avoided directing aggression against their resource-rich and powerful counterparts, disadvantaged groups with high levels of religious infusion directed significant aggression against them-despite the significant tangible costs to the disadvantaged groups potentially posed by enacting such aggression. This research suggests mechanisms through which religion may increase intergroup conflict and introduces an innovative method for performing nuanced, cross-societal research.
January 27th, 2014 by MVH
Liao, Q., & Li, Z. (2014). Portfolio optimization of computer and mobile botnets. International Journal of Information Security, 13(1), 1-14.
Abstract: Botnet, a network of compromised computers controlled by botmasters, can perform various forms of malicious attacks and has emerged as one of the top security problems yet to be solved. Traditionally, botmasters have been focusing on herding computers. As mobile computing devices such as smart phones and tablets are becoming increasingly popular, there are more targets exposed to hacking risks. While technical approaches have so far received limited results, we study the botnet problem from an alternative angle, i.e., economic perspectives of botnet industry. In this paper, we play devil’s advocate and think from the perspective of botmasters, i.e., how botmasters can evolve to maximize their profits in response to changing technologies. We adopt the concept of portfolio management, in which botmasters run their business through maintaining an optimal portfolio of PC and mobile devices to diversify risk and maximize profits of entire botnet industry. On the other hand, users may also maximize their utility function by keeping an optimal portfolio of network activities and data on their computers and mobile devices. The strategic playing by botmasters and users is modeled in a game theoretical framework. Various equilibrium solutions are discussed in terms of their welfare implications to botmasters and users. Understanding the optimal portfolio choice by botmasters provides insight for defenders, especially with evolving and diversified computing environments.
January 23rd, 2014 by MVH
Smellie, J. L., Rocchi, S., Wilch, T. I., Gemelli, M., Di Vincenzo, G., McIntosh, W., et al. (2014). Glaciovolcanic evidence for a polythermal Neogene East Antarctic Ice Sheet. Geology, 42(1), 39-42.
Abstract: A paradigm has existed for more than 30 years that the basal thermal regime of the East Antarctic Ice Sheet in Victoria Land made a fundamental transition from wet-based to cold-based either at ca. 14 Ma or after ca. 2.5 Ma. The basal thermal regime is important because it determines the potential for unstable behavior in an ice sheet. We have studied the environmental characteristics of subglacially erupted volcanic centers scattered along 800 km of the Ross Sea flank of the Transantarctic Mountains. The volcanoes preserve evidence for the coeval paleo-ice thicknesses and contain features diagnostic of both wet-based and cold-based ice conditions. By dating the sequences we are able to demonstrate that the basal thermal regime varied spatially and with time between ca. 12 Ma and present. It was polythermal overall and probably comprised a coarse temperature patchwork of frozen-bed and thawed-bed ice, similar to the East Antarctic Ice Sheet today. Thus, an important shift is required in the prevailing paradigm describing its temporal evolution.
January 16th, 2014 by MVH
Anissi, J., Sendide, K., & Olapade, O. (2014). Seasonal Shifts in the Bacterioplankton Assemblages of High Altitude Middle Atlas Lakes. Journal of Water Resource and Protection, 6(1), 1-7.
Abstract: Compositional changes of the bacterioplankton assemblages in four high altitude middle Atlas lakes were monitored over a complete seasonal cycle using combinations of culture-dependent and molecular approaches. Viable bacterial numbers varied between seasons, with the lowest numbers recorded in the winter and the highest in the summer in all four lakes. Also, bacterial occurrences were found to be strongly correlated with water temperature in all the four sites, i.e., Lake Aoua (0.88), Ifreh (0.59), Hechlef (0.77) and Affourgagh (0.79) during the study period. Standard microbiological characterization of bacteria isolates from the lakes revealed majority (68%) to be Gram positive. Seasonal variations in the microbial assemblages among the lakes were also validated by restriction fragment length polymorphism (RFLP). Shifts in microbial assemblages, especially of the fecal indicator bacteria appeared to also be influenced by differences in the morphometric and watershed characteristics among the lakes. This study further reveals the need to employ combinations of methodological approaches, including taxonomic, physiological and molecular methods to adequately delineate and fully understand the ecology of microbial assemblages in extreme environments.
January 16th, 2014 by MVH
Kish-Gephart, J., Detert, J., Treviño, L., Baker, V., & Martin, S. (2013). Situational Moral Disengagement: Can the Effects of Self-Interest be Mitigated? Journal of Business Ethics, 117(3), 1-19.
Abstract: Self-interest has long been recognized as a powerful human motive. Yet, much remains to be understood about the thinking behind self-interested pursuits. Drawing from multiple literatures, we propose that situations high in opportunity for self-interested gain trigger a type of moral cognition called moral disengagement that allows the individual to more easily disengage internalized moral standards. We also theorize two countervailing forces—situational harm to others and dispositional conscientiousness—that may weaken the effects of personal gain on morally disengaged reasoning. We test our hypotheses in two studies using qualitative and quantitative data and complementary research methods and design. We demonstrate that when personal gain incentives are relatively moderate, reminders of harm to others can reduce the likelihood that employees will morally disengage. Furthermore, when strong personal gain incentives are present in a situation, highly conscientious individuals are less apt than their counterparts to engage in morally disengaged reasoning.
January 13th, 2014 by MVH
Li, H., Mason, D. E., Bieler, T. R., Boehlert, C. J., & Crimp, M. A. (2013). Methodology for estimating the critical resolved shear stress ratios of α-phase Ti using EBSD-based trace analysis. Acta Materialia, 61(20), 7555-7567.
Abstract: A novel method for calculating the critical resolved shear stress (CRSS) ratios of different deformation system types in polycrystalline non-cubic metals has been developed. The mean CRSS ratios between different deformation systems were calculated for both commercially pure (CP) Ti and Ti–5Al–2.5Sn (wt.%) tensile deformed at ambient temperature and 455 °C using an in situ scanning electron microscope-based testing technique combined with electron backscattered diffraction. It was found that the relative activity of the different deformation systems changes as a function of alloying composition and deformation temperature. Prismatic slip was the most active deformation mode for CP Ti. CP Ti exhibited a lower resistance to prismatic slip at both ambient and elevated temperatures compared with Ti–5Al–2.5Sn. For Ti–5Al–2.5Sn, prismatic slip was the most active deformation system at ambient temperature although the basal slip activity significantly increased compared to CP Ti, mostly likely due to an increased c/a ratio resulting in a closer packed basal plane. At 455 °C, basal slip exhibited a lower CRSS than prismatic slip for Ti–5Al–2.5Sn. The relative activity of other deformation systems was also affected by alloying and temperature. The statistical resampling technique of bootstrapping was used to generate multiple equivalent data sets from which mean CRSS ratios between different deformation systems, and associated confidence intervals, could be deduced. It was found that the mean CRSS ratios at low and high strains varied slightly for the same testing conditions. Moreover, lesser activated slip systems resulted in relatively larger confidence intervals for the CRSS means. This variability may be attributed to a number of potential factors, including measurement errors, rotations of grains during deformation, local stress state variations, and work hardening. The analysis further suggests that awareness of the intrinsic statistical variability in CRSS ratios should be considered when formulating crystal plasticity constitutive models.
November 25th, 2013 by MVH
Olapade, O. (2013). Occurrence, Ubiquity and Proficiency of Hydrocarbon-Degrading Microbial Assemblages in Nature. Journal of Pollution Effects and Control, 1(2).
November 7th, 2013 by MVH
Defay, X., Morgan, K., McCammon, D., Wulf, D., Andrianarijaona, V. M., Fogle, M., Seely, D.G., et al. (2013). X-ray emission measurements following charge exchange between C6+ and H. Physical Review A, 88(5), 052702.
Abstract: X-ray spectra following charge-exchange collisions between C6+ and He are presented for collision energies between 460 and 32 000 eV/u. Spectra were obtained at the Oak Ridge National Laboratory Multicharged Ion Research Facility using a microcalorimeter x-ray detector capable of fully resolving the C vi Lyman series lines through Ly-γ. These line ratios are sensitive to the initial electron ℓ distribution and test our understanding of the charge-exchange process. In addition, these line ratios are important for identifying charge exchange in astrophysical contexts involving the interaction of solar wind ions with neutrals. Our measurements are performed at collision velocities (300–2500 km/s) which overlap most of the solar wind range. Additional data of this type can be combined with computations to provide an extensive set of reliable line ratios and absolute cross sections for the interpretation of a variety of astrophysical situations.
November 1st, 2013 by MVH
Christensen, B. G., McCusker, K. T., Altepeter, J. B., Calkins, B., Gerrits, T., Lita, A. E., Miller, A., et al. (2013). Detection-Loophole-Free Test of Quantum Nonlocality, and Applications. Physical Review Letters, 111(13).
Abstract: We present a source of entangled photons that violates a Bell inequality free of the “fair-sampling” assumption, by over 7 standard deviations. This violation is the first reported experiment with photons to close the detection loophole, and we demonstrate enough “efficiency” overhead to eventually perform a fully loophole-free test of local realism. The entanglement quality is verified by maximally violating additional Bell tests, testing the upper limit of quantum correlations. Finally, we use the source to generate “device-independent” private quantum random numbers at rates over 4 orders of magnitude beyond previous experiments.
October 29th, 2013 by MVH
Rabquer, B., Hou, Y., Ruth, J., Luo, W., Eitzman, D., Koch, A., et al. (2012). H-2g, a glucose analog of blood group H antigen, mediates monocyte recruitment in vitro and in vivo via IL-8/CXCL8. Open Access Rheumatology: Research and Reviews, 2012(4), 93-98.
Objective: Monocyte (MN) recruitment is an essential inflammatory component of many autoimmune diseases, including rheumatoid arthritis (RA). In this study we investigated the ability of 2-fucosyllactose (H-2g), a glucose analog of blood group H antigen to induce MN migration in vivo and determined if H-2g-induced interleukin-8 (IL-8/CXCL8) plays a role in MN ingress in RA.
Methods: Sponge granuloma and intravital microscopy assays were performed to examine H-2g-induced in vivo MN migration and rolling, respectively. MNs were stimulated with H-2g, and the production of IL-8/CXCL8 was assessed by enzyme-linked immunosorbent assay and quantitative polymerase chain reaction. Lastly, in vitro MN migration assays and an in vivo RA synovial tissue severe combined immunodeficiency mouse model were used to determine the role of IL-8/CXCL8 in H-2g-induced MN migration.
Results: In vivo, H-2g induced significantly greater MN migration compared to phosphate buffered saline. Intravital microscopy revealed that H-2g mediates MN migration in vivo by inducing MN rolling. In addition, H-2g induced MN production of IL-8/CXCL8, a process that was dependent on Src kinase. Moreover, we found that H-2g mediated MN migration in vitro, and in vivo migration was inhibited by a neutralizing anti-IL-8/CXCL8 antibody.
Conclusion: These findings suggest that H-2g mediates MN recruitment in vitro and in vivo (in part) via IL-8/CXCL8.
October 17th, 2013 by MVH
Baker, V. L., & Pifer, M. J. (2013). Antecedents and outcomes: theories of fit and the study of doctoral education. Studies in Higher Education, 1-15.
Abstract: This paper explores fit as an important theoretical construct in the study of doctoral education and doctoral student development. We discuss how research based on three types of fit (person-environment fit, person-culture fit, person-vocation fit) may provide critical insights into the doctoral student experience, and offer a framework based on antecedents and outcomes to support future research. We conclude with an application of this framework to two understudied populations of doctoral students and future research directions.
October 15th, 2013 by MVH
Parr, C. (2012). Georgian Pronunciation. In D. R. Karna (Ed.), The use of the international phonetic alphabet in the choral rehearsal (pp. 227-230). Lanham, Md.: Scarecrow Press.
Abstract: In an effort to conquer one of the greatest challenges facing choral directors and their choirs, contributors explore the use of the IPA system in a vast range of languages. Readers will find essays devoted to the use of IPA on matters of lyric diction for the following tongues: Baltic Languages, Basque, Brazilian Portuguese, Chinese, Dutch, Ecclesiastical Latin, English, Finnish, French, Georgian, German, Germanic Latin, Greek, Hawaiian, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Romanian, Russian, Spanish, Swahili, and Swedish. Holding firmly to the belief that basic instruction in IPA character is part of a choir’s training, Karna and his contributors see enormous potential for choirs to expand considerably their foreign-language repertoire and save considerable rehearsal time [Publisher description].
October 11th, 2013 by MVH
Sacks, M. (2013). Behind the Brown Mask: Joe Louis’ Face and the Construction of Racial Mythologies. In K. Rieser-Wohlfarter, M. Fuchs & M. Phillips (Eds.), ConFiguring America: Iconic Figures, Visuality, and the American Identity (pp. 47-64). Bristol, UK: Intellect.
October 8th, 2013 by MVH
Betz Hayes, H. M., Eisenmann, J. C., Pfeiffer, K., & Carlson, J. J. (2013). Weight Status, Physical Activity, and Vascular Health in 9- to 12-Year-Old Children. Journal of Physical Activity & Health, 10(2), 205-210.
Abstract: Background: The purpose of this study was to determine the independent and joint association of weight status and physical activity on resting blood pressure and C-reactive protein in children. Methods: Participants were 174 (71 males, 103 females) children (mean age = 10.5 ± 0.4 yrs). Physical activity was self-reported, body mass index was calculated from measured height and body mass, and blood pressure was measured according to standard procedures. A subset of 91 children had C-reactive protein measured by fingerstick blood sample. Four weight/physical activity groups were created by cross tabulation of weight status classification and physical activity level. Results: The prevalence of low physical activity (< 5 days/wk moderate-vigorous activity) did not differ between overweight and normal weight children (50%). Physical activity was not correlated with C-reactive protein (r = 0.01; P = 0.91) and C-reactive protein was not significantly different between physical activity groups (P = 0.87). Physical activity did not modify the difference in blood pressure or C-reactive protein within weight categories. Conclusions: Fatness (specifically overweight and obesity), but not physical activity, was shown to be associated with blood pressure and C-reactive protein levels in children. Physical activity did not attenuate blood pressure or C-reactive protein in overweight and obese children.
September 24th, 2013 by MVH
Reimann, D. A. (2013). Symmetric Interlace Patterns on Regular Octahedra. Hyperseeing, 61-66.
Abstract: This paper shows a simple interlace motif family can be used to decorate regular octahedra to produce symmetric and visually interesting interlace patterns. Decorated octahedra were created using paper models. The constructed models exhibit a wide range of symmetry types dictated by the geometry of the octahedron.
September 20th, 2013 by MVH
McCauley, A. M. (2013). Drawings from “passage” [Prints]. 34th Biennial Bradley International Print and Drawing Exhibition, Bradley University.
September 19th, 2013 by MVH
Lunsford, L. G., Baker, V., Griffin, K. A., & Johnson, W. B. (2013). Mentoring: A Typology of Costs for Higher Education Faculty. Mentoring & Tutoring: Partnership in Learning, 21(2), 1-24.
Abstract: In this theoretical paper, we apply a social exchange framework to understand mentors? negative experiences. We propose a typology of costs, categorized according to psychosocial and career mentoring functions. Our typology generates testable research propositions. Psychosocial costs of mentoring are burnout, anger, and grief or loss. Career costs of mentoring include diminished reputation, decrease in productivity, and risk of ethical transgressions. The typology focuses on faculty in higher education because of the prevalence and importance of mentoring in that work setting. However, the typology may be extended to career arenas such as law, medicine, and the military. The theory presents a framework for acknowledging negative experiences and the costs associated with mentorship.
September 10th, 2013 by MVH
Walling, C. B. (2013). All necessary measures : the United Nations and humanitarian intervention (1st ed.). Philadelphia: University of Pennsylvania Press.
September 6th, 2013 by MVH
LaPage, M. J., Saltzman, G. M., & Schumacher, K. R. (2013). Cost Effectiveness of the Wearable Automated Defibrillator for Primary Prevention in Pediatric Heart Transplant Candidates. Journal of Cardiac Failure, 19(8), S64-S64.
September 6th, 2013 by MVH
Albertson, R., Tan, V., Leads, R. R., Reyes, M., Sullivan, W., & Casper-Lindley, C. (2013). Mapping Wolbachia distributions in the adult Drosophila brain. Cellular Microbiology, 15(9), 1527-1544.
Abstract: The maternally inherited bacterium Wolbachia infects the germline of most arthropod species. Using Drosophila simulans and D. melanogaster, we demonstrate that localization of Wolbachia to the fat bodies and adult brain is likely also a conserved feature of Wolbachia infection. Examination of three Wolbachia strains (WMel, WRiv, WPop) revealed that the bacteria preferentially concentrate in the central brain with low titres in the optic lobes. Distribution within regions of the central brain is largely determined by the Wolbachia strain, while the titre is influenced by both, the host species and the bacteria strain. In neurons of the central brain and ventral nerve cord, Wolbachia preferentially localizes to the neuronal cell bodies but not to axons. All examined Wolbachia strains are present intracellularly or in extracellular clusters, with the pathogenic WPop strain exhibiting the largest and most abundant clusters. We also discovered that 16 of 40 lines from the Drosophila Genetic Reference Panel are Wolbachia infected. Direct comparison of Wolbachia infected and cured lines from this panel reveals that differences in physiological traits (chill coma recovery, starvation, longevity) are partially due to host line influences. In addition, a tetracycline-induced increase in Drosophila longevity was detected many generations after treatment.
August 19th, 2013 by MVH
Melzer, S. (2013). Ritual Violence in a Two-Car Garage. Contexts, 12(3), 26-31.
Abstract: Sociologist Scott Melzer goes inside suburban Fight Clubs to see why men are risking their bodies to take up arms, to bond, and to exorcise childhood experiences of emasculation.
August 19th, 2013 by MVH
Christensen, N. (2013). Leaving A Trace. Wake: Great Lakes Thought & Culture, 4.
July 30th, 2013 by MVH
Pifer, M. J., & Baker, V. L. (2013). Managing the Process: The Intradepartmental Networks of Early-Career Academics. Innovative Higher Education, 38(4), 323-337.
Abstract: This article relies on data from surveys and interviews to explore the networking behaviors and strategies of early-career faculty members within the contexts of their academic departments. Findings suggest that faculty members’ approaches to interactions and relationships with colleagues may be conceptualized according to a continuum of behavior, based on their political awareness of interactions and their strategic engagement in them, interactions as a means of impression management, the cultivation of relationships for symbolic inclusion in networks, and the presence of functional patterns in network. The article concludes with recommendations for future research.
July 29th, 2013 by MVH
Cocks, G. (2013). Indirected by Stanley Kubrick. Post Script: Essays in Film and the Humanities, 32(2), 20-33.