En el Caribe colombiano se encuentra la subregión de Montes Ma-ría, conformada por 15 municipios y ubicada entre los departamentos Sucre Bolívar. Este territorio es un santuario ecológico agrícola, su ubicación geoestratégica ha convertido en uno lugares más afectados conflicto armado interno Colombia. La fama María fue ampliamente ilustrada prensa nacio-nal local sus masacres, desplazamientos,...

Size and book to market ratio are both highly correlated with the average returns of common stocks. Fama and French (1993) argue that these effects are proxies for factors of risk. In this study, we try to test the three factor model of Fama and French and the Capital Asset Pricing Model on French Stock Market. We use returns on the Fama and French six portfolios sorted by size and book to mark...

In beacon-enabled mode, IEEE 802.15.4 is ruled by the slotted CSMA/CA Medium Access Control (MAC) protocol. The standard slotted CSMA/CA mechanism does not provide any means of differentiated services to improve the quality of service for timecritical events (such as alarms, time slot reservation, PAN management messages etc.). In this paper, we present and discuss practical service differentia...

A simple equilibrium restriction identifies time-varying components of expected returns. Using data from the Fama and French threeand fivefactor models and momentum, we use this restriction to predict factor returns out of sample. We derive a policy for timing exposures to these components and find the modified portfolio generates returns with higher out-of-sample Sharpe ratios than the underly...

The speed of a bus network is often specified by the Abstract parameter a, which denotes the end-to-end propagation delay normalized with respect to the We study the performance of the slotted ALOIH A average packet transmission time. With current multiple access protocol in a high speed bidirectional technology and cost trends, typical values of a in most passive bus network, where transmissio...

Introduction: Navigated TKA (Total Knee Arthroplasty) has heightened awareness of mal-alignment in conventional TKA, as well as providing an accurate means of measuring alignment intra-operatively. Debate as to the importance and significance of alignment versus knee balance continues. Aim: To assess cutting error, and examine the hypothesises: • ‘Slotted osteotomies are more accurate than non-...

We report an investigation into the effect of using smart antennas on the performance of the slotted ALOHA protocol with capture in a mobile communications environment with Rayleigh and Log-normal fading. Our results demonstrate that by using smart antennas, we can achieve higher performance in terms of capture probability and throughput when compared to a conventional antenna system using the ...

A crucial macroeconomic question facing the US economy is whether the value of the stock market has implications for consumption. If it does, it means that any severe downturn in the market could lead to a contraction of consumption, and therefore a contraction in the overall economy. The issue is one on which academics and the financial community seem to disagree. Rigorous academic works (Fama...

Chinese manufacturers, which produce nearly one-fourth of global manufacturing outputs, play important roles in the global supply chains for many products. The Chinese government proposed the “Made in China 2025” plan to help manufacturers upgrade their technology, so that the country will become a green and innovative “world manufacturing power”. It is important for researchers, practitioners,...

Fluid antennas offer a novel way to achieve massive connectivity by enabling each user find ‘port’ in space where the instantaneous interference undergoes deep null for multiple access. While this unprecedented capability permits hundreds of users share same radio channel, needs switch its best port on symbol-by-symbol basis, which is impractical. Motivated this, paper considers scenario fluid ...