Neuromyths for educational research and the educational field

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Quasi-Hamiltonian Model Spaces

Let $K$ be a simple and simply connected compact Lie group. We call a quasi-Hamiltonian $K$-manifold $M$ a quasi-Hamiltonian model space if it is multiplicity free and its moment map is surjective. We classify all quasi-Hamiltonian model spaces by identifying a certain lattice that uniquely determines the space.Comment: 28 page

Analisis Yuridis terhadap Munculnya Sertipikat Hak Milik Atas Tanah Perkebunan Kelapa Sawit Perorangan Atas Kekuatan Surat Kepala Desa tanpa Diketahui Pemiliknya (Studi Putusan Ptun Nomor : 08/g/2011/ptun Mdn)”

The procedure of issuing ownership certificate of plantation and individual land stipulated in the Directive of the Head of BPN No. 4/1998 on the Guidelines forgiving and Canceling State Land Right and the Government Regulation No. 24/1961. By the help of the Village Head, SIM (Tilling License) is issued on land-reform after the requirement for tilling period is fulfilled. Itis then transferred to the applicant who registers in P2T section of the Land Office toget the certificate. There are two kinds of land certificate: free State land in which the documents are Identity Cards and written notification and non-free State Land in which the documents are renunciation of rights, property title, and location layout. Legal consequence of the position of ownership certificate of individual oil palm plantation in the Ruling of PTUN No. 08/G/2011/PTUN-MDN, although there is the double Letter of Notifications made by the Village Head, the Land Certificate cannot be cancelled because it has met the requirement for the registration, and its legal basis of the purchasing contract is the Letter of Notification which has been issued before the legal basis owned by the plaintiff

The final blow to the Stability Pact? EMU enlargement and government debt

The continued debate on even the softened Stability and Growth Pact (SGP) highlights that the question of public debt in the European Monetary Union (EMU) needs further scrutiny. Both political economy models for emerging market sovereign debt and exchange rate regimes, as well as models on common pool and debt spillover problems in a monetary union point to an upward drift of public debt for countries joining EMU. In turn, this could lead to the expectation that, the more countries join EMU, the more pressure on an already battered SGP will develop. However, such models and first empirical research tend to focus only on the behaviour of governments – that is, the demand side on the market for government debt. Factors determining the supply side of government debt – i.e. capital markets – are most of the time left out of the analysis. This paper tries to fill this gap by analysing empirically the effects of both public debt demand and supply factors on the budget balances in the EMU candidate countries of Central and Eastern Europe (CEE) as well as in EMU and other OECD countries from 1994 to 2005. The results suggest that, although demand factors seem to have played a more important role than supply factors, some evidence for market conditions limiting new debt is found. More interestingly, despite the SGP disappointment, membership of EMU, as well as the time of the convergence to EMU, so far appears to coincide with more positive budget balances. Since most of the SGP literature assumes that EMU will cause a bias for higher debt due to spillover effects between EMU member countries, this could warrant a different theoretical approach to the impact of monetary unions on government debt.monetary union, fiscal stability, government debt, EMU enlargement

Prediksi Mahasiswa Berisiko Drop Out (DO) dengan ADTree dan NNge

Dengan misi meningkatkan kualitas sumber daya manusia maka perguruan tinggi wajib meningkatkan kualitas lulusan dan juga menjaga agar jumlah mahasiswa Drop Out (DO) tidak terlalu tinggi. Selain kualitas lulusan, jumlah mahasiswa DO juga menjadi instrumen penilaian oleh Badan Akreditasi Nasional yaitu IAPT 3.0 pada indikator nomor 51. Oleh karena itu pengendalian terhadap jumlah mahasiswa DO perlu dilakukan. Berbagai upaya yang dilakukan oleh perguruan tinggi untuk meminimalkan jumlah DO umumnya belum memanfaatkan pola data historis untuk bisa dijadikan sebuah pengetahuan. Penelitian ini menawarkan solusi berbasis data mining untuk memprediksi mahasiswa yang berisiko DO menggunakan algoritma ADTree dan NNge. Pengumpulan dataset dari sistem informasi akademik perguruan tinggi. Kemudian data diseleksi dan nilai atribut diubah ke dalam format tertentu. Teknik evaluasi menggunakan 10-fold cross-validation. Evaluasi keseluruhan atribut sebanyak 13 dan sejumlah atribut setelah diseleksi menggunakan metode CfsSubsetEval bawaan dari aplikasi WEKA. Hasil prediksi berupa apakah mahasiswa DO atau tidak. Model yang dibangun dengan algoritma ADTree dan NNge mampu memprediksi kelas DO. Setelah jumlah atribut diseleksi dengan metode CfsSubsetEval dari 13 menjadi 2 (rata kehadiran dan IPK), maka dihasilkan tingkat keakuratan dengan algoritma ADTree mencapai 97.25% dan F-Measure sebesar 32.7% serta tingkat keakuratan dengan algoritma NNge mencapai 96.2% dan F-Measure sebesar 34.5%

A note on the lower bound for online strip packing

This note presents a lower bound of $3/2+\sqrt{33}/6 \approx 2.457$ on the competitive ratio for online strip packing. The instance construction we use to obtain the lower bound was first coined by Brown, Baker and Katseff (1980). Recently this instance construction is used to improve the lower bound in computer aided proofs. We derive the best possible lower bound that can be obtained with this instance construction