Limits To Certainty in QoS Pricing and Bandwidth

Advanced services require more reliable bandwidth than currently provided by the Internet Protocol, even with the reliability enhancements provided by TCP. More reliable bandwidth will be provided through QoS (quality of service), as currently discussed widely. Yet QoS has some implications beyond providing ubiquitous access to advance Internet service, which are of interest from a policy perspective. In particular, what are the implications for price of Internet services? Further, how will these changes impact demand and universal service for the Internet. This paper explores the relationship between certainty of bandwidth and certainty of price for Internet services over a statistically shared network and finds that these are mutually exclusive goals.Comment: 29th TPRC Conference, 200

Using Bursty Announcements for Detecting BGP Routing Anomalies

Despite the robust structure of the Internet, it is still susceptible to disruptive routing updates that prevent network traffic from reaching its destination. Our research shows that BGP announcements that are associated with disruptive updates tend to occur in groups of relatively high frequency, followed by periods of infrequent activity. We hypothesize that we may use these bursty characteristics to detect anomalous routing incidents. In this work, we use manually verified ground truth metadata and volume of announcements as a baseline measure, and propose a burstiness measure that detects prior anomalous incidents with high recall and better precision than the volume baseline. We quantify the burstiness of inter-arrival times around the date and times of four large-scale incidents: the Indosat hijacking event in April 2014, the Telecom Malaysia leak in June 2015, the Bharti Airtel Ltd. hijack in November 2015, and the MainOne leak in November 2018; and three smaller scale incidents that led to traffic interception: the Belarusian traffic direction in February 2013, the Icelandic traffic direction in July 2013, and the Russian telecom that hijacked financial services in April 2017. Our method leverages the burstiness of disruptive update messages to detect these incidents. We describe limitations, open challenges, and how this method can be used for routing anomaly detection.Comment: 16 pages, 13 figures, 4 tabl

An Atomicity-Generating Layer for Anonymous Currencies

Atomicity is a necessary element for reliable transactions (Financial Service Technology Consortium, 1995; Camp, Sirbu and Tygar, 1995; Tygar, 1996). Anonymity is also an issue of great importance not only to designers of commerce systems, (Chaum, 1982; Chaum, 1989; Chaum, Fiat & Naor, 1988; Medvinski, 1993), but also to those concerned with the societal effects of information technologies (Branscomb 1994. Compaine 1985, National Research Council 1996, Neumann 1993, Poole 1983). Yet there has been a tradeoff between these two elements in commerce system design. Reliable systems, which provide highly atomic transactions, offer limited anonymity (Visa, 1995; Sirbu and Tygar, 1995; Mastercard, 1995, Low, Maxemchuk and Paul, 1993) . Anonymous systems (Chaum, 1985; Chaum 1989; Medvinski, 1993) do not offer reliable transactions as shown in Yee, 1994; Camp, 1999; and Tygar, 1996. This work illustrates that any electronic token currency can be made reliable with the addition of this atomicity-generating layer.IB

Using a two-scintillator paddle telescope for cosmic ray flux measurements

A two-scintillator paddle muon telescope with variable angular acceptance at the earth\u27s surface was used to study correlations between flux distribution and barometric pressure. The detector was placed in 2 different locations around Georgia State University with varying paddle separations of 0, 7, and 14 inches. Correlation and anti-correlation analyses were conducted by using the muon count from the detector along with the barometric pressure, surface temperature, stratospheric temperature and solar activity. It was observed that there was a short and long-term variation relationship between cosmic ray counts and barometric pressure and also cosmic ray counts and temperature. No significant relationship was found between cosmic ray flux and solar activity. A new two-scintillator paddle telescope with larger detecting area was constructed in order to observe a stronger correlation between cosmic ray flux and pressure

Performance Analysis of a Secure IEEE 802.11B Wireless Network Incorporating Personal Digital Assistants

Research results of this thesis indicate very poor performance of a Wireless Local Area Network (WLAN) utilizing PDAs. Network throughput is adversely effected most by VPN implementation and slightly by increased file size. The client distance factor has virtually no effect on the throughput. The impact of each of these factor levels is small when compared to the magnitude of the overall mean throughput (\u3c6%). The average network throughput with the PDA client is much lower than expected (=11,500 bps). This is attributed to several factors with degradation primarily resulting from limitations of the PDA hardware and O/S. Because of the low throughput values achieved (regardless if VPN is on or off), an operational WLAN with PDAs (as tested) is not feasible. Operational use of the network tested would require an in-depth analysis of the type of network traffic and performance required to maintain functionality. To deploy such a system, custom designed Winsock controls would need to be implemented to minimize limitations imposed by the PDA. As PDA technology continues to develop, future hardware and O/S functionality may provide a more robust platform for network communications. The battery life of the PDA and packet battery combination is observed to be about 164 minutes with additional jackets adding about 90 minutes each

The Complexities of Communicating with Children about Mental Health Issues

Communicating with children about any difficult topic is complex, but especially when the topic is about mental health. Piaget’s stages of cognitive development and Vygotsky’s Zone of Proximal Development sets the stage for understanding how age appropriate conversations can aid in children’s understanding of mental health issues. Then, by conducting a thorough literature review, three common areas where these conversations take place were identified; at home, at school, and at a medical setting. All of these settings have strengths and weaknesses in their ability to facilitate quality mental health conversations with children. After examining these settings, this paper explores some of the current themes and suggestions for communicating to children about mental health issues. These suggestions include using simple language, using activities to engage the child, and relating the child to the information. This paper then discussed multiple resources for adults aiding these conversations such as scripts written by psychologists. In the interest of exploring accessibility to support these conversations for the adult facilitators, this paper turns to Artificial Intelligence (AI), specifically ChatGPT. Overall, the use of ChatGPT to provide adult facilitators with scripts appears promising with a few limitations

An Assessment of the Millennial Body and Its Place in the Local Church

Millennial members’ waning attendance and involvement at Simon Temple African Methodist Episcopal Zion Church is a growing concern for the church universal. This project focuses on Simon Temple’s ability to attract and retain millennials and draw on their church programs and leadership gifts. This study’s purpose was to understand better why millennials do not become or remain active members at Simon Temple. If the church implemented a strategic evangelism and discipleship plan for millennials, could it help attract, retain, and involve millennials? This study evaluates the concerns of Simon Temple leadership and millennial members as they relate to millennial involvement or lack thereof. The goal was to increase millennial membership by twenty percent over eight weeks. The findings from this study can inform and assist churches in identifying concerns that may adversely influence millennial church attendance and participation

Proceedings: Sixth Annual Workshop on Meteorological and Environmental Inputs to Aviation Systems

The topics of interaction of the atmosphere with aviation systems, the better definition and implementation of services to operators, and the collection and interpretation of data for establishing operational criteria relating the total meteorological inputs from the atmospheric sciences to the needs of aviation communities were addressed