Safaricom and M-PESA in Kenya: Financial Inclusion and Financial Integrity

The recent and widespread availability of affordable mobile phone technology in developing countries has paved the way for the development of a number of mobile money and electronic remittance services. One of the most successful of these services is Safaricom’s M-PESA program, launched in the East African nation of Kenya in March 2007. Since then, the program has successfully enrolled 15.2 million users, transferred more than US$1.4 trillion in electronic funds, and contributed significantly to poverty alleviation and financial inclusion efforts in rural Kenya. This Article seeks to trace the development of M-PESA in Kenya, provide a snapshot of the Kenyan implementation of and experience with the program, and consider the role that services like M-PESA might play in national and international anti-money laundering and counter-terrorist financing efforts

Integer Maxima in Power Envelopes of Golay Codewords

This paper examines the distribution of integer peaks amoung Golay cosets in Ζ4. It will prove that the envelope power of at least one element of every Golay coset of Ζ4 of length 2m (for m-even) will have a maximum at exactly 2m+1. Similarly it will be proven that one element of every Golay coset of Ζ4 of length 2m (for m-odd) will have a maximum at exactly 2m+1. Observations and partial arguments will be made about why Golay cosets of Ζ4 of length 2m (for m-even) contain no elements with such a peak

Rethinking Virtual Currency Regulation in the Bitcoin Age

This Article investigates an increasingly important yet under-developed body of law: regulation of virtual currency. At its peak in March of 2014, the daily volume of Bitcoin transactions in United States dollars exceeded $575,000,000. The growing mainstream acceptance of Bitcoin, however, is best illustrated by the growing number of leading merchants that have decided to accept Bitcoin payments. While Bitcoin’s rise as an alternative payment method is well-chronicled, Bitcoin’s impact extends further due to its use as an investment vehicle and its ability to spur the growth of an industry of Bitcoin-based businesses. Despite increasingly widespread use, Bitcoin (and other virtual currencies) have largely operated without the burden of regulation. Why? Like the potentially transformative innovations that preceded Bitcoin, virtual currency raises unique challenges for which existing legal models may be unprepared. As policymakers struggle to catch-up, the effort to develop an appropriate regulatory regime for virtual currency is at a critical juncture. The response in the United States has thus far involved regulatory bodies acting independently to clarify the treatment of virtual currency under a variety of different laws designed to regulate traditional payment systems, financial services, and investments. This Article argues, contrary to this approach, that a narrow focus on the technical application and extension of existing law creates a deficient regulatory regime. Instead, we suggest that policymakers should: (1) engage the various agency stakeholders to promote cross-communication; (2) think more globally about the wide spectrum of issues arising from virtual currency; and (3) embrace the unique and distinct characteristics of virtual currency. In support of this proposition, we show that refocusing on the collection of policy goals advanced by existing law offers policymakers an additional tool to aid in the development of a comprehensive, cohesive, and appropriately-scaled virtual currency regulatory model

Dynamic and Adaptive Training for Enhanced Aviation Knowledge Transfer and Retention

The world of aviation is rapidly evolving through increased automation on the flight deck, new air traffic control tools and procedures, and expanded applications of Unmanned Aircraft Systems (UAS). These enhancements may increase training requirements on operational personnel and potentially introduce the opportunity for the degradation of knowledge, skills, and abilities (KSAs) that are not routinely applied. The resources required for simulator-based training results in using computer-based training (CBT) for many infrequently used KSAs. Field studies and academic literature consistently show that users find this training boring, easily forgettable, and are perceived as “check the box” training. Furthermore, most CBT is standardized and does not adjust to the trainee’s learning preferences or existing familiarity with the content. In this presentation, we describe a new approach to training delivery. Our Dynamic Adaptive Training & Evaluation System (DATES) approach is designed to increase engagement, long-term retention, and decrease training time by adjusting to trainees’ learning preferences and proficiency levels. DATES presents training material in different formats and orders based on trainee performance on embedded assessments and real-time analysis of user engagement. The system starts by administering a pre-test on the topic and then presents a random order of short, individual modules in visual (video-based), verbal (text-based), or scenario-based formats. Based on response time on embedded assessments, question response accuracy, and proprietary user-engagement metrics, the system’s algorithm will present tailored training styles and modalities to maximize impact for individual trainees. We will discuss the key considerations and implementation recommendations

Modeling of the Influence of Sea Ice Cycle and Langmuir Circulation on the Upper Ocean Mixed Layer Depth and Freshwater Distribution at the West Antarctic Peninsula.

The Southern Ocean is chronically undersampled due to its remoteness, harsh environment, and sea ice cover. Ocean circulation models yield significant insight into key processes and to some extent obviate the dearth of data; however, they often underestimate surface mixed layer depth (MLD), with consequences for surface water-column temperature, salinity, and nutrient concentration. In this study, a coupled circulation and sea ice model was implemented for the region adjacent to the West Antarctic Peninsula, a climatically sensitive region which has exhibited decadal trends towards higher ocean temperature, shorter sea ice season, and increasing glacial freshwater input, overlain by strong interannual variability. Hindcast simulations were conducted with different air-ice drag coefficients and Langmuir circulation parameterizations to determine the impact of these factors on MLD. Including Langmuir circulation deepened the surface mixed layer, with the deepening being more pronounced in the shelf and slope regions. Optimal selection of an air-ice drag coefficient also increased modeled MLD by similar amounts and had a larger impact in improving the reliability of the simulated MLD interannual variability. This study highlights the importance of sea ice volume and redistribution to correctly reproduce the physics of the underlying ocean, and the potential of appropriately parameterizing Langmuir circulation to help correct for biases towards shallow MLD in the Southern Ocean. The model also reproduces observed freshwater patterns in the West Antarctic Peninsula during late summer and suggests that areas of intense summertime sea ice melt can still show net annual freezing due to high sea ice formation during the winter

Shift from Carbon Flow through the Microbial Loop to the Viral Shunt in Coastal Antarctic Waters during Austral Summer

The relative flow of carbon through the viral shunt and the microbial loop is a pivotal factor controlling the contribution of secondary production to the food web and to rates of nutrient remineralization and respiration. The current study examines the significance of these processes in the coastal waters of the Antarctic during the productive austral summer months. Throughout the study a general trend towards lower bacterioplankton and heterotrophic nanoflagellate (HNF) abundances was observed, whereas virioplankton concentration increased. A corresponding decline of HNF grazing rates and shift towards viral production, indicative of viral infection, was measured. Carbon flow mediated by HNF grazing decreased by more than half from 5.7 µg C L−1 day−1 on average in December and January to 2.4 µg C L−1 day−1 in February. Conversely, carbon flow through the viral shunt increased substantially over the study from on average 0.9 µg C L−1 day−1 in December to 7.6 µg C L−1 day−1 in February. This study shows that functioning of the coastal Antarctic microbial community varied considerably over the productive summer months. In early summer, the system favors transfer of matter and energy to higher trophic levels via the microbial loop, however towards the end of summer carbon flow is redirected towards the viral shunt, causing a switch towards more recycling and therefore increased respiration and regeneration

Seasonal variability of the warm Atlantic Water layer in the vicinity of the Greenland shelf break

The warmest water reaching the east and west coast of Greenland is found between 200?m and 600?m. Whilst important for melting Greenland's outlet glaciers, limited winter observations of this layer prohibit determination of its seasonality. To address this, temperature data from Argo profiling floats, a range of sources within the World Ocean Database and unprecedented coverage from marine-mammal borne sensors have been analysed for the period 2002-2011. A significant seasonal range in temperature (~1-2?°C) is found in the warm layer, in contrast to most of the surrounding ocean. The phase of the seasonal cycle exhibits considerable spatial variability, with the warmest water found near the eastern and southwestern shelf-break towards the end of the calendar year. High-resolution ocean model trajectory analysis suggest the timing of the arrival of the year's warmest water is a function of advection time from the subduction site in the Irminger Basin