Finite Temperature and Density Effects in Planar Q.E.D

The behavior of finite temperature planar electrodynamics is investigated. We calculate the static as well as dynamic characteristic functions using real time formalism. The temperature and density dependence of dielectric and permeability functions, plasmon frequencies and their relation to the screening length is determined. The radiative correction to the fermion mass is also calculated. We also calculate the temperature dependence of the electron (anyon) magnetic moment. Our results for the gyromagnetic ratio go smoothly to the known result at zero temperature, $g=2$, in accordance with the general expectation.Comment: 24 pages, LaTe

Effective Interactions of Planar Fermions in a Strong Magnetic Field-the Effect of Landau Level Mixing

We obtain expressions for the current operator in the lowest Landau level (L.L.L.) field theory, where higher Landau level mixing due to various external and interparticle interactions is sytematically taken into account. We consider the current operators in the presence of electromagnetic interactions, both Coulomb and time-dependent, as well as local four-fermi interactions. The importance of Landau level mixing for long-range interactions is especially emphasized. We also calculate the edge-current for a finite sample.Comment: 15 pages, plain te

Malaria vaccines and the new malaria agenda.

The development of an effective malaria vaccine has taken many decades, but there is now a good chance that the first malaria vaccine will be licensed within the next few years. However, this vaccine (RTS,S) will not be fully effective, and more efficacious, second-generation vaccines will be needed. Good progress is being made in the development of potential vaccines directed at each of the three main stages of the parasite's life cycle, with a variety of different approaches, but many challenges remain, e.g. overcoming the problem of polymorphism in many key parasite antigens. It is likely vaccines that are effective enough to block transmission, and thus contribute to increasing drives towards malaria elimination, will need to contain antigens from different stages of the parasite's life cycle

Integrasi Fingerprint System dengan Real TIME Absensi Dosen Berbasis Web (Studi Kasus : STMIK Pontianak)

Penggunaan fingerprint system dalam mengelola kehadiran dosen mengajar di kelas dirasa belum optimal karena tidak bisa memberikan informasi secara real time bagi Ketua program studi dan mahasiswa. Informasi yang didapat dari mesin absensi masih diperlukan pengolahan lebih lanjut agar menjadi informasi yang bernilai dalam proses pengambilan keputusan. Pengembangan sistem informasi absensi dosen secara real time merupakan sebuah inovasi dalam upaya memberikan informasi yang akurat dan cepat terutama bagi kalangan mahasiswa yang ingin masuk kelas. Integrasi fingerprint system dengan real time absensi dosen dimaksudkan untuk memberikan keakuratan data dimana setiapkali dosen melakukan pendeteksian sidik jari, sistem akan menampilkan status dosen masuk atau keluar kelas. Penelitian ini bersifat studi kasus dengan melibatkan dosen yang memiliki jadwal mengajar pada semester berjalan. Dalam kegiatan pengujian, disediakan mesin fingerprint sebagai pendeteksi sidik jari dan aplikasi monitoring sebagai sistem informasi yang menampilkan kehadiran dosen pada layar monitor dan layar televisi