The Impact Of Leadership And Followership: An Organizational Phenomena

Although traditional research has viewed leadership and followership as separate functions, recent studies have acknowledged the importance of followership in both the effectiveness and development of leaders. Followership models have emerged suggesting that leaders cannot be effective without having experience as a follower and that leaders and followers share characteristics that when successfully used in concert, can result in the achievement of organizational goals. Several stereotypes of what it means to be a follower inhibit both the development of followers and the willingness of aspiring leaders to assume followership roles. More research on the importance of followership to the health of an organization is necessary to encourage follower development

Elevated temperature fatigue of TZC MOLYBDENUM alloy under high frequency and high vacuum conditions

Elevated temperature fatigue of TZC molybdenum alloy determined in high frequency and high vacuum test

The Orbital Period and Negative Superhumps of the Nova-Like Cataclysmic Variable V378 Pegasi

A radial velocity study is presented of the cataclysmic variable V378 Pegasi (PG 2337+300). It is found to have an orbital period of 0.13858 +/- 0.00004 d (3.32592 +/- 0.00096 hours). Its spectrum and long-term light curve suggest that V378 Peg is a nova-like variable, with no outbursts. We use the approximate distance and position in the Galaxy of V378 Peg to estimate E(B-V) = 0.095, and use near-infrared magnitudes to calculate a distance of 680 +/- 90 pc and M_V = 4.68 +/- 0.70, consistent with V378 Peg being a nova-like. Time-resolved photometry taken between 2001 and 2009 reveals a period of 0.1346 +/- 0.0004 d (3.23 +/- 0.01 hours). We identify this photometric variability to be negative superhumps, from a precessing, tilted accretion disk. Our repeated measurements of the photometric period of V378 Peg are consistent with this period having been stable between 2001 and 2009, with its negative superhumps showing coherence over as many as hundreds or even thousands of cycles.Comment: 24 pages, 19 figures, accepted for publication in New Astronom

Bioethical Education in the Local Church

In light of the challenges of new biotechnologies, the church must reassert its commitment to the concept of the sanctity of human life created in the image of God. One way to do this is for the local church to develop a strategy for educating its congregants in bioethics. This educational task begins with an awareness of what bioethics involves, what issues are bioethical in nature, and a demonstration of their urgency. In chapter one, I propose to introduce the challenge of bioethics facing the church, explain why I am passionate about this topic and introduce some of the works I have discovered in my research that have given me specific direction in shaping this project. I will discuss some of the common objections that I have encountered when disclosing this project with others, enumerate my goals, objectives and the methodology I will use, and explain the scope and limitations of this project. I have divided chapter two into two parts. Part one lays the theological and biblical groundwork for bioethics education in the local church. I will focus on establishing the importance of worldview, and especially understanding worldview as a metanarrative that forms a moral community. Part two explores how to use these ideas in the context of church community for bioethical discernment. I will defend the importance of community then explain how the church as a community can practice the process of moral discourse, deliberation, discernment and decision in light of its doctrinal convictions. Chapter three explains the methodologies I used to execute the project, and the results I obtained. There were two primary methods; a focused group discussion following a thirteen week elective, and a congregational survey before and after a four-part series of sermons addressing current bioethical issues. Chapter four entails analysis and discussion of data gleaned from one local congregation’s response to and evaluation of these methodologies. In chapter five, I will share some of the lessons I have learned throughout the process, and on the basis of these lessons, make practical suggestions for future ministry

Abnormal diffusion of a single vortex in the two dimensional XY model

We study thermal diffusion dynamics of a single vortex in two dimensional XY model. By numerical simulations we find an abnormal diffusion such that the mobility decreases with time $t$ as $1/\ln t$. In addition we construct a one dimensional diffusion-like equation to model the dynamics and confirm that it conserves quantitative property of the abnormal diffusion. By analyzing the reduced model, we find that the radius of the collectively moving region with the vortex core grows as $R(t) \propto t^{1/2}$. This suggests that the mobility of the vortex is described by dynamical correlation length as $1/\ln R(t)$.Comment: 13 pages, 8 figure

Secular changes in the quiescence of WZ Sge: the development of a cavity in the inner disk

We find a dimming during optical quiescence of the cataclysmic variable WZ Sge by about half a magnitude between superoutbursts. We connect the dimming with the development of a cavity in the inner part of the accretion disk. We suggest that, when the cavity is big enough, accretion of material is governed by the magnetic field of the white dwarf and pulsations from the weakly magnetic white dwarf appear. The time scale of forming the cavity is about a decade, and it persists throughout the whole quiescent phase. Such a cavity can be accommodated well by the proposed magnetic propeller model for WZ Sge, where during quiescence mass is being expelled by the magnetic white dwarf from the inner regions of the accretion disk to larger radii.Comment: 10 pages, 4 figures, accepted for publication in Astronomy and Astrophysics; following referee report, many textual changes, figures improved, more historic data added, conclusions unchange

An Irradiation Effect in Nova DN Gem 1912 and the Significance of the Period Gap for Classical Novae

Continuous CCD photometry of the classical nova DN Gem during 52 nights in the years 1992-98 reveals a modulation with a period 0.127844 d. The semi-amplitude is about 0.03 mag. The stability of the variation suggests that it is the orbital period of the binary system. This interpretation makes DN Gem the fourth nova inside the cataclysmic variable (CV) period gap, as defined by Diaz and Bruch (1997), and it bolsters the idea that there is no period gap for classical novae. However, the number of known nova periods is still too small to establish this idea statistically. We eliminate several possible mechanisms for the variation, and propose that the modulation is driven by an irradiation effect. We find that model light curves of an irradiated secondary star, fit the data well. The inclination angle of the system is restricted by this model to 10 deg < i < 65 deg. We also refine a previous estimate of the distance to the binary system, and find d=1.6+/-0.6 kpc.Comment: 7 pages, Latex file, 2 .ps files and 3 .eps files. accepted for publication in MNRAS. also available at: ftp://ftp.astro.keele.ac.uk/pub/preprints/preprints.htm

Characteristic Temperatures of Folding of a Small Peptide

We perform a generalized-ensemble simulation of a small peptide taking the interactions among all atoms into account. From this simulation we obtain thermodynamic quantities over a wide range of temperatures. In particular, we show that the folding of a small peptide is a multi-stage process associated with two characteristic temperatures, the collapse temperature T_{\theta} and the folding temperature T_f. Our results give supporting evidence for the energy landscape picture and funnel concept. These ideas were previously developed in the context of studies of simplified protein models, and here for the first time checked in an all-atom Monte Carlo simulation.Comment: Latex, 6 Figure