A Training Program for Lay Evangelists in the Principles of Communication

Problem Many dedicated lay people who are involved in evangelism often lack good communication skills. Consequently their effectiveness is impaired and the gospel work does not advance as it should. This study is undertaken to discover some of the principles of communication which can help lay evangelists to communicate the gospel more effectively. Method With the help of Biblical resources and selected literature on the subject, the project, in part one, examines some of the modes of Biblical communication found in both the Old and the New Testaments. In part two, the project presents a training program in the principles of communication. This training program consisting of six lectures and deals with the following topics: (1) Jesus and Paul as Communicators, (2) Principles of Persuasion as illustrated in the Bible, (3) Appealing to Motives and Needs, (4) The Use of Language, (5) The Use of the Voice, and (6) Non-Verbal Communication. Conclusions The use of communication principles in evangelism is Biblical and will help evangelists to become more effective

Constraining regular and turbulent magnetic field strengths in M51 via Faraday depolarization

We employ an analytical model that incorporates both wavelength-dependent and wavelength-independent depolarization to describe radio polarimetric observations of polarization at $\lambda \lambda \lambda \, 3.5, 6.2, 20.5$ cm in M51 (NGC 5194). The aim is to constrain both the regular and turbulent magnetic field strengths in the disk and halo, modeled as a two- or three-layer magneto-ionic medium, via differential Faraday rotation and internal Faraday dispersion, along with wavelength-independent depolarization arising from turbulent magnetic fields. A reduced chi-squared analysis is used for the statistical comparison of predicted to observed polarization maps to determine the best-fit magnetic field configuration at each of four radial rings spanning $2.4 - 7.2$ kpc in $1.2$ kpc increments. We find that a two-layer modeling approach provides a better fit to the observations than a three-layer model, where the near and far sides of the halo are taken to be identical, although the resulting best-fit magnetic field strengths are comparable. This implies that all of the signal from the far halo is depolarized at these wavelengths. We find a total magnetic field in the disk of approximately $18~\mu$G and a total magnetic field strength in the halo of $\sim 4-6~\mu$G. Both turbulent and regular magnetic field strengths in the disk exceed those in the halo by a factor of a few. About half of the turbulent magnetic field in the disk is anisotropic, but in the halo all turbulence is only isotropic.Comment: Accepted for publication in Astronomy & Astrophysics, 10 pages, 5 figures, 5 table

Depolarization of synchrotron radiation in a multilayer magneto-ionic medium

Depolarization of diffuse radio synchrotron emission is classified in terms of wavelength-independent and wavelength-dependent depolarization in the context of regular magnetic fields and of both isotropic and anisotropic turbulent magnetic fields. Previous analytical formulas for depolarization due to differential Faraday rotation are extended to include internal Faraday dispersion concomitantly, for a multilayer synchrotron emitting and Faraday rotating magneto-ionic medium. In particular, depolarization equations for a two- and three-layer system (disk-halo, halo-disk-halo) are explicitly derived. To both serve as a `user's guide' to the theoretical machinery and as an approach for disentangling line-of-sight depolarization contributions in face-on galaxies, the analytical framework is applied to data from a small region in the face-on grand-design spiral galaxy M51. The effectiveness of the multiwavelength observations in constraining the pool of physical depolarization scenarios is illustrated for a two- and three-layer model along with a Faraday screen system for an observationally motivated magnetic field configuration.Comment: Accepted for publication in Astronomy & Astrophysics, 12 pages, 4 figures, 2 table

Alternative piezoresistor designs for maximizing cantilever sensitivity.

Over the last 15 years, researchers have explored the use of piezoresistive microcantilevers/resonators as gas sensors because of their relative ease in fabrication, low production cost, and their ability to detect changes in mass or surface stress with fairly good sensitivity. However, existing microcantilever designs rely on irreversible chemical reactions for detection and researchers have been unable to optimize symmetric geometries for increased sensitivity. Previous work by our group showed the capability of T-shaped piezoresistive cantilevers to detect gas composition using a nonreaction-based method – viscous damping. However, this geometry yielded only small changes in resistance. Recently, computational studies performed by our group indicated that optimizing the geometry of the base piezoresistor increases device sensitivity up to 700 times. Thus, the focus of this work is to improve the sensitivity of nonreaction-based piezoresistive microcantilevers by incorporating asymmetric piezoresistive sensing elements in a new array design. A three-mask fabrication process was performed using a 4 silicon-on-insulator wafer. Gold bond pads and leads were patterned using two optical lithography masks, gold sputtering, and acetone lift-off techniques. The cantilevers were patterned with electron-beam lithography and a dry etch masking layer was then deposited via electronbeam evaporation of iron. Subsequently, the silicon device layer was deep reactive ion etched (DRIE) to create the vertical sidewalls and the sacrificial silicon dioxide layer was removed with a buffered oxide etch, completely releasing the cantilever structures. Finally, the device was cleaned and dried with critical point drying to prevent stiction of the devices to the substrate. For the resonance experiments, the cantilevers were driven electrostatically by applying an AC bias, 10 Vpp, to the gate electrode. A DC bias of 10 V was placed across the piezoresistor in series with a 14 kÙ resistor. The drive frequency (0 – 80 kHz) was swept until the cantilever resonated at its natural frequency, which occurred when the output of the lock-in amplifier reached its maximum. These devices have been actuated to resonance under vacuum and their resonant frequencies and Qfactors measured. The first mode of resonance for the asymmetric cantilevers was found to range between 40 kHz and 63 kHz, depending on the piezoresistor geometry and length of the cantilever beam. The redesigned piezoresistive microcantilevers tested yielded static and dynamic sensitivities ranging from 1-6 Ù/Ìm and 2-17 Ù/Ìm displacement, respectively, which are 40 –730 times more sensitive than the best symmetric design previously reported by our group. Furthermore, the Q-factors ranged between 1700 and 4200, typical values for MEMS microcantilevers

Secular Control of Non-Public Schools

Purposes: This research aims to know and analyze the influence of Debt To Asset Ratio and Debt To Equity Ratio against Return On Equity in Food & Beverage companies listed on the Indonesia Stock Exchange. Methods: This research uses an associative type of study. The research was conducted on the Food & Beverage company listed on the Indonesia Stock Exchange by verifying the companies listed on the Indonesia Stock exchange, especially the food and beverage company in 2014-2018. The population used in this study was the entire food and beverage company listed on the Indonesia Stock Exchange during 2014 to 2018 which was 13 companies. The samples taken in this study were 11 samples at the Food & Beverage company listed on the Indonesia Stock Exchange. In this study the model and technique of data analysis used a double linear regression approach. Findings: The result of research is first, Debt to Asset Ratio significantly affects Return On Equity in food and beverages companies listed on the Indonesia Stock Exchange. Secondly, Debt to Equity Ratio has significant effect on Return On Equity in food and beverages companies listed on the Indonesia Stock Exchange. Thirdly, Debt to Asset Ratio and Debt to Equity Ratio together there is a positive and significant influence on Return On Equity in the Food and Beverage company listed on the Indonesia Stock Exchange. Keywords: Debt To Assets Ratio, Debt To Equity Ratio andReturn On EquityPurposes: This research aims to know and analyze the influence of Debt To Asset Ratio and Debt To Equity Ratio against Return On Equity in Food & Beverage companies listed on the Indonesia Stock Exchange. Methods: This research uses an associative type of study. The research was conducted on the Food & Beverage company listed on the Indonesia Stock Exchange by verifying the companies listed on the Indonesia Stock exchange, especially the food and beverage company in 2014-2018. The population used in this study was the entire food and beverage company listed on the Indonesia Stock Exchange during 2014 to 2018 which was 13 companies. The samples taken in this study were 11 samples at the Food & Beverage company listed on the Indonesia Stock Exchange. In this study the model and technique of data analysis used a double linear regression approach. Findings: The result of research is first, Debt to Asset Ratio significantly affects Return On Equity in food and beverages companies listed on the Indonesia Stock Exchange. Secondly, Debt to Equity Ratio has significant effect on Return On Equity in food and beverages companies listed on the Indonesia Stock Exchange. Thirdly, Debt to Asset Ratio and Debt to Equity Ratio together there is a positive and significant influence on Return On Equity in the Food and Beverage company listed on the Indonesia Stock Exchange. Keywords: Debt To Assets Ratio, Debt To Equity Ratio andReturn On Equit

WH2 and proline-rich domains of WASP-family proteins collaborate to accelerate actin filament elongation.

WASP-family proteins are known to promote assembly of branched actin networks by stimulating the filament-nucleating activity of the Arp2/3 complex. Here, we show that WASP-family proteins also function as polymerases that accelerate elongation of uncapped actin filaments. When clustered on a surface, WASP-family proteins can drive branched actin networks to grow much faster than they could by direct incorporation of soluble monomers. This polymerase activity arises from the coordinated action of two regulatory sequences: (i) a WASP homology 2 (WH2) domain that binds actin, and (ii) a proline-rich sequence that binds profilin-actin complexes. In the absence of profilin, WH2 domains are sufficient to accelerate filament elongation, but in the presence of profilin, proline-rich sequences are required to support polymerase activity by (i) bringing polymerization-competent actin monomers in proximity to growing filament ends, and (ii) promoting shuttling of actin monomers from profilin-actin complexes onto nearby WH2 domains. Unoccupied WH2 domains transiently associate with free filament ends, preventing their growth and dynamically tethering the branched actin network to the WASP-family proteins that create it. Collaboration between WH2 and proline-rich sequences thus strikes a balance between filament growth and tethering. Our work expands the number of critical roles that WASP-family proteins play in the assembly of branched actin networks to at least three: (i) promoting dendritic nucleation; (ii) linking actin networks to membranes; and (iii) accelerating filament elongation