Abstract. The operational advantages of electrodynamic tethers of moderate length are becoming evident from studies of collision avoidance. Although long tethers (of order of 10 kilometers) provide high efficiency and good adaptability to varying plasma conditions, boosting tethers of moderate length (~ 1 kilometer) and suitable design might still operate at acceptable efficiencies and adequate...

Two new species of Stenochironomus Kieffer, 1919 are described in Brazil. New records of Stenochironomus nudipupa Borkent, 1984 and S. gladius Borkent, 1984 from Brazil, new data on geographical distribution of S. jubatus Borkent, 1984 and S. triannulatus Borkent, 1984 from the State of Roraima, and S. bacrionis Borkent, 1984 recorded from the State of Amazonas, as well as emended descriptions ...

Two species in the genera Neoperla and Kamimuria (Plecoptera: Perlidae) from China are described as new: Kamimuria guangxia sp. n., and Neoperla mesostyla sp. n. The new species are compared to similar taxa.

Modern day stock markets have almost entirely became automated. Even though it means increased profits for the investors by algorithms acting upon the slightest price change in order of microseconds, it also has given birth to many ethical dilemmas in the sense that slightest mistake can cause people to lose all of their livelihoods. This paper reviews one such event that happened on May 06, 20...

The sugarbeet cyst nematode, Heterodera schachtii Schmidt, 1871, was discovered by Mai et al. (4) in fields of 16 New York State commercial red table beet growers during a survey in 1970-1971. They reported that the clover cyst nematode, H. trifolii Goffart, 1932, which also has lemon-shaped cysts with bullae, was present in very low numbers in many of the fields sampled. Thus a rapid and relia...

In this paper we introduce a new coalitional value in the context of TU games with an a priori system of unions, which it is called the symmetric coalitional Banzhaf value. This value satisfies the property of symmetry in the quotient game, the quotient game property, and it is a coalitional value of Banzhaf. Several characterizations are provided and two political examples illustrate the diffe...

This paper proposes an extension of the Identity model developed by Akerlof and Kranton (2000) that incorporates a beliefs dimension based on the consumption of information. The model is then applied to the process by which consumer-voters consume campaign media and selectively accept information to vote. Based on the assumption that political parties act to maximize their stream of future cont...

The microalga incorporated photobioreactor is a highly efficient biological system for converting CO2 into biomass. Using microalgal photobioreactor as CO2 mitigation system is a practical approach for elimination of waste gas from the CO2 emission. In this study, the marine microalga Chlorella sp. was cultured in a photobioreactor to assess biomass, lipid productivity and CO2 reduction. We als...