The velocity function derived from large scale surveys can be compared with the predictions of ΛCDM cosmology, by matching the measured rotation velocities Vrot of galaxies to the maximum circular velocity of dark matter (DM) halos Vmax. For Vrot<50 kms−1, a major discrepancy arises between the observed and ΛCDM velocity functions. However, the manner in which different observational measures o...

In a recent publication [10] the author showed that self-motions of general planar Stewart Gough platforms can be classified into two so-called Darboux Mannheim (DM) types (I and II). Moreover, in [10] the author was able to compute the set of equations yielding a type II DM selfmotion explicitly. Based on these equations we present a basic result for this class of self-motions.

Emission from the 212 – 111 line of H2CO has been detected and marginally resolved toward LkCa 15 by the Nobeyama Millimeter Array. The column density of H2CO is higher than that observed in DM Tau and than predicted by theoretical models of disk chemistry; also, the line-intensity profile is less centrally peaked than that for CO. A similar behavior is observed in other organic gaseous molecul...

In the last years there has been a huge growth and consolidation of the Data Mining field. Some efforts are being done that seek the establishment of standards in the area. Included on these efforts there can be enumerated SEMMA and CRISP-DM. Both grow as industrial standards and define a set of sequential steps that pretends to guide the implementation of data mining applications. The question...

In this paper, we introduce the class of ideals with $(d_1,ldots,d_m)$-linear quotients generalizing the class of ideals with linear quotients. Under suitable conditions we control the numerical invariants of a minimal free resolution of ideals with $(d_1,ldots,d_m)$-linear quotients. In particular we show that their first module of syzygies is a componentwise linear module.

he citation in Figure 1 is not from a recent visitor in Rome, but from the Roman author Martial some 2000 years ago. Anybody who has seen Roman roads that still exist or the streets of old Pompeii can easily imagine the noise created by the wagons rolling down these uneven streets. This sound is the ancient form of tire/road noise. Today’s tire/road noise is a matter of concern. In fact, it is ...

Der Prozess valide, neuartige, potenziell nutzbare und verständliche Muster in Daten zu finden, wird als Knowledge Discovery in Database Prozess bezeichnet (KDD-Prozess). Die diesem Prozess zu Grunde liegende Datenbasis unterliegt einem ständigen Wandel. Doug Laney erkannte die Eigenschaften Volume, Variety und Velocity als neue Herausforderungen für ITOrganisationen. Heute werden diese Herausf...