Achieving high performance outcomes through trust in virtual teams

Developing trust among team members is critical for achieving high performance outcomes. Recently, global business operations necessitated working in a team environment with colleagues outside traditional organizational boundaries, across distances, and across time zones. In this article, we discuss how human resource practices can support organizational initiatives when business operations mandate increased virtual teamwork. We examine the role of HR in enhancing relationship building and the development of trust among workers who may rarely, if ever, meet face-toface. Using research from teamwork, social exchange theory, and knowledge sharing, we discuss how four areas of human resources management—recruitment, training, performance appraisal, and compensation/reward— might combine with technology to facilitate the development of trust among virtual team members

Carrying and Effect of Granulated Baits Formulated with Entomopathogenic Fungi among Atta sexdens rubropilosa Colonies (Hymenoptera: Formicidae)

The present study aimed to evaluate the carrying and effect of (dry) granulated baits containing conidia of entomopathogenic fungi among colonies of the leaf-cutting ant Atta sexdens rubropilosa in the laboratory. This bait type was chosen to facilitate its eventual commercial use. Two applications were performed: in the first, baits with 1x108 conidia/g were utilized while in the second employed concentrations 5 to 8.6 times greater. The baits were formulated with a citric pulp base, with 2 isolates of Beauveria bassiana, 1 of Paecilomyces lilacinus and 1 of Isaria fumosorosea. The following controls were utilized: (I) baits with sulfluramid insecticide, (II) without active ingredient, and (III) Acalypha spp. leaf discs. It was verified that the baits containing fungal conidia were rapidly carried to the nest interior in both applications and were rejected minimally. Thus, the (dry) granulated bait formulation appears to be an adequate vehicle for entomopathogenic fungi. At the doses and concentrations utilized, the fungi provoked only limited worker mortality, not killing the colonies. Given the rapid carrying and low rejection, a higher conidial dose per colony can, perhaps, kill them. Thus, it is inferred that all the isolates tested present potential as an agent to control colonies of leaf-cutting ants

Proposed Solution to the Problem of Member Retention for the South Sao Paulo Conference

Problem. The South São Paulo Conference loses an average of 32 percent of its members per year as a result of dissatisfaction with the church. According to the Office of Archives and Statistics of the Central Brazilian Union, the South São Paulo Conference baptized 2,057 people in 2004 and 797 dropped out of the church, resulting in a 38 percent church dropout rate in that year. In 2005, the conference baptized 2,516 people and 1,000 dropped out, for a disaffiliation rate of 39 percent. In 2006, 2,746 were baptized and 456 dropped out, for a disaffiliation rate of 19 percent. In 2007, the conference baptized 2,904 people and 1,010 dropped out, a disaffiliation rate of 35 percent. In 2008, the conference baptized 3,029 people and 927 dropped out, resulting in a disaffiliation rate of 31 percent. In 2009, the conference baptized 3,258 people and 844 dropped out, for a disaffiliation rate of 27 percent. The loss of membership in this conference is a problem that needs to be addressed. Method. The research method used to conduct this study was the quantitative survey approach, as presented by the Handbook of Research Design and Social Measurement. For the purpose of this study, 100 former Seventh-day Adventists from four congregations in the South São Paulo Conference were selected to participate in the survey. These former members voluntarily participated in the survey and answered questions regarding their reasons for leaving the church. Results. A discipleship seminar was created and implemented that produced an environment of spiritual acceptance among church members. Once the participants understood the meaning of discipleship, especially the new converts, they demonstrated confidence in the program and became engaged with it. They understood that this seminar was helpful to them as a significant spiritual tool to strengthen their faith. Conclusions. This document describes and records the development, implementation, and evaluation of a proposed solution to the problem of member retention for the South São Paulo Conference in Brazil. It has been evaluated as to its practicality and potential as a successful member retention program among the Seventh-day Adventist churches in the South São Paulo Conference. This model is an approach that complements rather than competes with other methods to retain members within the church

Moving Heat Source Reconstruction from the Cauchy Boundary Data

We consider the problem of reconstruction of an unknown characteristic transient thermal source inside a domain. By introducing the definition of an extended dirichlet-to-Neumann map in the time-space cylinder and the adoption of the anisotropic Sobolev-Hilbert spaces, we can treat the problem with methods similar to those used in the analysis of the stationary source reconstruction problem. Further, the finite difference θ scheme applied to the transient heat conduction equation leads to a model based on a sequence of modified Helmholtz equation solutions. For each modified Helmholtz equation the characteristic star-shape source function may be reconstructed uniquely from the Cauchy boundary data. Using representation formula, we establish reciprocity functional mapping functions that are solutions of the modified Helmholtz equation to their integral in the unknown characteristic support

Anisotropy of the space orientation of radio sources. I: The catalog

A catalog of the extended extragalactic radio sources consisting of 10461 objects is compiled based on the list of radio sources of the FIRST survey. A total of 1801 objects are identified with galaxies and quasars of the SDSS survey and the Veron-Veron catalog. The distribution of the position angles of the axes of radio sources from the catalog is determined, and the probability that this distribution is equiprobable is shown to be less then 10^(-7). This result implies that at Z equal to or smaller then 0.5, spatial orientation of the axes of radio sources is anisotropic at a statistically significant level.Comment: 8 pages, 7 figure

A agricultura nas negociações multilaterais da Rodada Doha e suas implicações para o Brasil

This article aims to analyse the evolution of world trade, with emphasis on the multilateral negotiations, since GATT was created in 1948, through the current Doha round of WTO. The role of institutions in building a favourable environment for free trade, particularly in agriculture, is stressed. After all, not only has the farming sector been crucial for the negotiations to succeed, but also for the trade relations of many developing countries, including Brazil. Besides, agriculture has been one of the most protected sectors in world trade and as such out of reach of GATT regulation until the conclusion of the Uruguay Round. Given that subsidies, tariffs and other mechanisms of protection still prevail in agricultural policies of some countries, this sector still remains as the deadlock of the unfinished Doha Round. That is why the previous expectations of progresses in trade liberalization have given place to a widespread uncertainty as the negotiations carry on.agricultural trade; Doha Round, Brazilian agriculture

VV124 (UGC4879): A new transitional dwarf galaxy in the periphery of the Local Group

We present the first resolved-star photometry of VV124 (UGC4879) and find that this is the most isolated dwarf galaxy in the periphery of the Local Group. Based on imaging and spectroscopic follow up observations with the 6m BTA telescope, we resolve VV124 into 1560 stars down to the limiting magnitude levels of V~25.6 and I~23.9. The young blue stellar populations and emission gas are found near the core, but noticeably displaced from the center of the galaxy as traced by dominant evolved red stars. The mean radial velocity derived from the spectra of two Blue Supergiant stars, an HII region and unresolved continuum sources is -80+/-10 km/s. The evolved ``red tangle'' stellar populations, which contains the red giant branch (RGB), are identified at large galactocentric radii. We use the I-band luminosity function to determine the distance based on the Tip of RGB method, 1.1+/-0.1 Mpc. This is ~10 times closer than the values usually assumed in the literature, and we provide revised distance dependent parameters. From the mean (V-I) color of the RGB, we estimate the mean metallicity as [Fe/H]~-1.37 dex. Despite of its isolated location, the properties of VV124 are clearly not those of a galaxy in formation, but rather similar to a transitional dIrr/dSph type.Comment: 4 pages, submitted to MNRAS Letter

Double Bars, Inner Disks, and Nuclear Rings in Early-Type Disk Galaxies

We present results from an imaging survey of an unbiased sample of thirty-eight early-type (S0--Sa), low-inclination, optically barred galaxies in the field. Our goal was to find and characterize central stellar and gaseous structures: secondary bars, inner disks, and nuclear rings. Bars inside bars are surprisingly common: at least one quarter of the sample galaxies (possibly as many as 40%) are double-barred, with no preference for Hubble type or the strength of the primary bar. A typical secondary bar is ~12% of the size of its primary bar and 240--750 pc in radius. We see no significant effect of secondary bars on nuclear activity. We also find kiloparsec-scale inner disks in at least 20% of our sample, almost exclusively in S0 galaxies. These disks are on average 20% the size of their host bar, and show a wider range of relative sizes than do secondary bars. Nuclear rings are present in about a third of our sample. Most are dusty, sites of current or recent star formation, or both; such rings are preferentially found in Sa galaxies. Three S0 galaxies (15% of the S0's) appear to have purely stellar nuclear rings, with no evidence for dust or recent star formation. The fact that these central stellar structures are so common indicates that the inner regions of early-type barred galaxies typically contain dynamically cool and disklike structures. This is especially true for S0 galaxies, where secondary bars, inner disks, and/or stellar nuclear rings are present at least two thirds of the time. (abridged)Comment: LaTeX, 15 pages, 7 EPS figures; to appear in The Astronomical Journal (July 2002

Longitudinal Ion Acceleration from High-Intensity Laser Interactions with Underdense Plasma

Longitudinal ion acceleration from high-intensity (I ~ 10^20 Wcm^-2) laser interactions with helium gas jet targets (n_e ~ 0.04 n_c) have been observed. The ion beam has a maximum energy for He^2+ of approximately 40 MeV and was directional along the laser propagation path, with the highest energy ions being collimated to a cone of less than 10 degrees. 2D particle-in-cell simulations have been used to investigate the acceleration mechanism. The time varying magnetic field associated with the fast electron current provides a contribution to the accelerating electric field as well as providing a collimating field for the ions. A strong correlation between the plasma density and the ion acceleration was found. A short plasma scale-length at the vacuum interface was observed to be beneficial for the maximum ion energies, but the collimation appears to be improved with longer scale-lengths due to enhanced magnetic fields in the ramp acceleration region.Comment: 18 pages, 6 figure

Herding cats: observing live coding in the wild

After a momentous decade of live coding activities, this paper seeks to explore the practice with the aim of situating it in the history of contemporary arts and music. The article introduces several key points of investigation in live coding research and discusses some examples of how live coding practitioners engage with these points in their system design and performances. In the light of the extremely diverse manifestations of live coding activities, the problem of defining the practice is discussed, and the question raised whether live coding will actually be necessary as an independent category