The Department of Defense Acquisition Workforce: Background, Analysis, and Questions for Congress

[Excerpt] This report provides background on the Department of Defense (DOD) acquisition workforce. Specifically, the report addresses the following questions: What is the acquisition workforce? What is the current size of the acquisition workforce? How has Congress sought to improve the acquisition workforce in the past? What are some potential questions for Congress to explore in the area of acquisition workforce management to improve acquisitions

A non-perturbative estimate of the heavy quark momentum diffusion coefficient

We estimate the momentum diffusion coefficient of a heavy quark within a pure SU(3) plasma at a temperature of about 1.5Tc. Large-scale Monte Carlo simulations on a series of lattices extending up to 192^3*48 permit us to carry out a continuum extrapolation of the so-called colour-electric imaginary-time correlator. The extrapolated correlator is analyzed with the help of theoretically motivated models for the corresponding spectral function. Evidence for a non-zero transport coefficient is found and, incorporating systematic uncertainties reflecting model assumptions, we obtain kappa = (1.8 - 3.4)T^3. This implies that the "drag coefficient", characterizing the time scale at which heavy quarks adjust to hydrodynamic flow, is (1.8 - 3.4) (Tc/T)^2 (M/1.5GeV) fm/c, where M is the heavy quark kinetic mass. The results apply to bottom and, with somewhat larger systematic uncertainties, to charm quarks.Comment: 18 pages. v2: clarifications adde

Critical point and scale setting in SU(3) plasma: An update

We explore a method developed in statistical physics which has been argued to have exponentially small finite-volume effects, in order to determine the critical temperature Tc of pure SU(3) gauge theory close to the continuum limit. The method allows us to estimate the critical coupling betac of the Wilson action for temporal extents up to Nt ~ 20 with < 0.1% uncertainties. Making use of the scale setting parameters r0 and sqrt{t0} in the same range of beta-values, these results lead to the independent continuum extrapolations Tc r0 = 0.7457(45) and Tc sqrt{t0} = 0.2489(14), with the latter originating from a more convincing fit. Inserting a conversion of r0 from literature (unfortunately with much larger errors) yields Tc / LambdaMSbar = 1.24(10).Comment: 12 pages. v2: clarifications and references added, published versio

Towards the continuum limit in transport coefficient computations

The analytic continuation needed for the extraction of transport coefficients necessitates in principle a continuous function of the Euclidean time variable. We report on progress towards achieving the continuum limit for 2-point correlator measurements in thermal SU(3) gauge theory, with specific attention paid to scale setting. In particular, we improve upon the determination of the critical lattice coupling and the critical temperature of pure SU(3) gauge theory, estimating r0*Tc ~ 0.7470(7) after a continuum extrapolation. As an application the determination of the heavy quark momentum diffusion coefficient from a correlator of colour-electric fields attached to a Polyakov loop is discussed.Comment: 7 pages. To appear in the Proceedings of the 31st International Symposium on Lattice Field Theory, July 29 - August 3, 2013, Mainz, German

A study of the impact on the Hinds County School system by a possible removal of one or two geographical areas

https://egrove.olemiss.edu/ms_school_surveys/1001/thumbnail.jp

Effective Staff Relationships as An Impetus for Growth in 21st Century Church

Effective staff relationships is a stimulus to church developmental growth in all facets of church life. It is expedient that each church and religious organizations should imbibe because of its benefits that cannot be overemphasized. This paper considers the necessity of staff relationships for growth in the 21st Century church by exploring into the biblical perspective of staff relationships. The necessity of staff relationships was also consider, such as it enhances mutual encouragement both personal and spiritual; it facilitates and improve the workforce; it promotes growth in all facets; teamwork, delegation and supervision are enhanced; it is problem-solving; it is enjoyable and broaden staff understanding, and building a Christlike attitude and relationships are not exempted. The possible challenges in staff relationships were also considered, such as staining, denting and destroying each other reputation and integrity. Mistrust and lack of sincere commitment among staff members. Inattentive to staff voices, preferential treatment and rivalry. Lack of recognition, motivation and appreciation of staff. The unconducive atmosphere and lack of openness and the spirit of cooperation. Excessive use of power and social stratification; and unforgiving spirit. The paper concludes that staff relationships are inevitable in contemporary churches and religious organizations. Healthy staff relationships should be built and encouraged for efficiency, growth, productivity and fulfilment of the primary purpose of multi-staff both between the volunteer staff members, non-ministerial staff and ministerial staff. Keywords: Effective, Staff Relationships, Impetus, Growth DOI: 10.7176/JPCR/48-02 Publication date:March 31st 2020

Mass Media as Means of Initiating Community Developmental Programmes in Akoko North West Local Government Area, Ondo State, Nigeria

The study examined the mass media as means of initiating community developmental programmes in Akoko North West Local Government Area of Ondo State, Nigeria. The study adopted descriptive research design of the survey type.The sample for the study consisted of 120 respondents in Akoko North West Local Government Area of Ondo State, Nigeria.&nbsp; The study raised four research questions which the data were collected through questionnaire and also tested and analyzed with descriptive statistics. The findings showed that the mass media was the best platform for mobilizing people of the community for participation and also attracts government attention to communities for developmental programmes. Based on the findings of the study, it is recommended that residents’ collaboration and empowerment form of participation is encouraged by NGOs and development agencies

Large magnetoresistance at room-temperature in semiconducting polymer sandwich devices

We report on the discovery of a large, room temperature magnetoresistance (MR) effect in polyfluorene sandwich devices in weak magnetic fields. We characterize this effect and discuss its dependence on voltage, temperature, film thickness, electrode materials, and (unintentional) impurity concentration. We usually observed negative MR, but positive MR can also be achieved under high applied electric fields. The MR effect reaches up to 10% at fields of 10mT at room temperature. The effect shows only a weak temperature dependence and is independent of the sign and direction of the magnetic field. We find that the effect is related to the hole current in the devices.Comment: 3 pages, 4 figure