Lumen Gentium 16 Anonymous Christians, Pelagianism, and Islam

Dr. Echeverria wrote this article in response to Dr. John V. Fesko’s “Machen and the Gospel” (Pro Rege 40.1 (September 2011): 18-27.

Assessment of Weather Sensitivities and Air Force Weather (AFW) Support to Tactical Lasers in the Lower Troposphere

ATL scientists need to develop a full understanding of the interaction effects between a high-energy laser beam and the atmosphere through which it propagates. Achieving this understanding is important for many reasons. In particular, the high cost of DE weapons systems makes each propagation event expensive. Having an understanding of the atmosphere in which a high-energy laser propagates will increase efficiency and effectiveness of the ATL weapon system, which in turn will decrease cost of operation. A tool that allows for the ATL war-fighter to determine the atmospheric effects on laser propagation currently does not exist. This study creates a stepping-stone toward creating a High Energy Laser Tactical Decision Aid (HELTDA) in which the war-fighter will be able to determine the effectiveness of the ATL weapon system with accuracy in order to maximize efficiency in a specific environment. Using the High Energy Laser End-to-End Simulation (HELEEOS) software, comparisons are made across various atmospheric factors. These factors consist of a variety of turbulence and wind profiles, aerosol effects, time of day, clouds and rain, and relative humidity, which are compared for summer and winter for a specific mid-latitude geographic location. In addition, the atmospheric factors run in HELEEOS are used to determine and characterize the relevant attenuating factors of extinction and thermal blooming, which are inferred by the different engagement scenarios tested. The results illustrate the three attenuation factors of high energy laser propagation: optical turbulence, extinction, and thermal blooming. In this study, the most significant attenuation factor is thermal blooming. Extinction is a significant attenuator as well, however, not to the degree of thermal blooming. Optical turbulence proved to be a negligible attenuator for increasingly vertical engagements. This is especially true for ATL engagements, which are generally limited to approximately 10km in slant range. The seasonal and time of day weather effects are also at times significant

Integrative structure determination of histones H3 and H4 using genetic interactions

Integrative structure modeling is increasingly used for determining the architectures of biological assemblies, especially those that are structurally heterogeneous. Recently, we reported on how to convert in vivo genetic interaction measurements into spatial restraints for structural modeling: first, phenotypic profiles are generated for each point mutation and thousands of gene deletions or environmental perturbations. Following, the phenotypic profile similarities are converted into distance restraints on the pairs of mutated residues. We illustrate the approach by determining the structure of the histone H3-H4 complex. The method is implemented in our open-source IMP program, expanding the structural biology toolbox by allowing structural characterization based on in vivo data without the need to purify the target system. We compare genetic interaction measurements to other sources of structural information, such as residue coevolution and deep-learning structure prediction of complex subunits. We also suggest that determining genetic interactions could benefit from new technologies, such as CRISPR-Cas9 approaches to gene editing, especially for mammalian cells. Finally, we highlight the opportunity for using genetic interactions to determine recalcitrant biomolecular structures, such as those of disordered proteins, transient protein assemblies, and host-pathogen protein complexes

Multimodal collaborative workgroup dataset and challenges

© 2017, CEUR-WS. All rights reserved. This work presents a multimodal dataset of 17 workgroup sessions in a collaborative learning activity. Workgroups were conformed of two or three students using a tabletop application in a co-located space. The dataset includes time-synchronized audio, video and tabletop system's logs. Some challenges were identified during the collection of the data, such as audio participation identification, and user traces identification. Future work should explore how to overcome the aforementioned difficulties

Discovery, retrieval, and analysis of the 'Star wars' botnet in twitter

It is known that many Twitter users are bots, which are accounts controlled and sometimes created by computers. Twitter bots can send spam tweets, manipulate public opinion and be used for online fraud. Here we report the discovery, retrieval, and analysis of the ‘Star Wars’ botnet in Twitter, which consists of more than 350,000 bots tweeting random quotations exclusively from Star Wars novels. The botnet contains a single type of bot, showing exactly the same properties throughout the botnet. It is unusually large, many times larger than other available datasets. It provides a valuable source of ground truth for research on Twitter bots. We analysed and revealed rich details on how the botnet was designed and created. As of this writing, the Star Wars bots are still alive in Twitter. They have survived since their creation in 2013, despite the increasing efforts in recent years to detect and remove Twitter bots. We also reflect on the ‘unconventional’ way in which we discovered the Star Wars bots, and discuss the current problems and future challenges of Twitter bot detection

Combining the Burrows-Wheeler Transform and RCM-LDGM Codes for the Transmission of Sources with Memory at High Spectral Efficiencies

In this paper, we look at the problem of implementing high-throughput Joint SourceChannel (JSC) coding schemes for the transmission of binary sources with memory over AWGN channels. The sources are modeled either by a Markov chain (MC) or a hidden Markov model (HMM). We propose a coding scheme based on the Burrows-Wheeler Transform (BWT) and the parallel concatenation of Rate-Compatible Modulation and Low-Density Generator Matrix (RCM-LDGM) codes. The proposed scheme uses the BWT to convert the original source with memory into a set of independent non-uniform Discrete Memoryless (DMS) binary sources, which are then separately encoded, with optimal rates, using RCM-LDGM codes

Virtual Environments and Augmented Reality Applied to Heritage Education. An Evaluative Study

Technological advancements have provided heritage with new learning environments via the use of virtual and augmented reality, which can foster the accessibility and understanding of culture and propose new ways of interacting with heritage. Therefore, in this study, a systematic evaluation is carried out of n=197 heritage education programs listed in the database of the Observatorio de Educación patrimonial en España (OEPE) (the Spanish Heritage Education Observatory–SHEO) which, in their descriptions, integrate the use of virtual environments and/or augmented reality to promote learning on the part of the user. The objectives of this study are: (1) to analyse the state of the art, (2) to evaluate the quality of their educational designs via the “analysis and assessment sequential method for heritage education programs” (SAEPEP-OEPE) and (3) to identify variables which can be improved or which have a significant influence on the quality of the programs. Highlights of the results include: (a) the increasing implementation of these technologies in heritage education programs, with the greater presence of virtual resources than of learning environments, (b) the low level of the scope of educational quality in their designs, particularly their assessment, and (c) the inclusion of advanced technologies slightly decreases the specificity of the educational design.This research was carried out with the aid of funding from the Spanish Ministry of Science, Innovation and Universities, and was co-funded by ERDF funds from the European Union for the research projects EDU2015-65716-C2-1-R, EDU2015-65716-C2-2-R, and PGC2018-094491-B-C33. It has also been made possible by funding from the Fundación Séneca of the Region of Murcia for the project 20638/JLI/18 and the Education Department of the Regional Government of the Basque Country (IT1193-19)