In einer Fragebogenstudie wurde der unterstützende Effekt eines Lernmanagementsystems (LMS) auf verschiedene Handlungsbereiche von Studierenden bewertet. Hierbei wurden speziell differenzielle Aspekte wie Anzahl der Studiensemester, Zugehörigkeit zu Fachbereichen/Fakultäten und das Geschlecht der Befragten berücksichtigt. Die Ergebnisse der Studie zeigen einen insgesamt positiven Einfluss des L...

In this paper we study the symmetry known [1] as mechanical similarity (LMS) and present for any monomial potential. We analyze it in the framework of the Koopman-von Neumann formulation of classical mechanics and prove that in this framework the LMS can be given a canonical implementation. We also show that the LMS is a generalization of the scale symmetry which is present only for the inverse...

This paper presents a simple and easy implementable Least Mean Square (LMS) type approach for frequency estimation of three phase power system in an unbalanced condition. The proposed LMS type algorithm is based on a second order recursion for the complex voltage derived from Clarke's transformation which is proved in the paper. The proposed algorithm is real adaptive filter with real parameter...

BACKGROUND Leiomyosarcoma (LMS) of the gastrointestinal tract is an extremely rare high-grade neoplasm with poor prognosis. For advanced LMS with distant metastasis, the decision as to the choice of the most appropriate therapeutic strategy, including chemotherapy and surgery, is difficult. Here, we present an unusual case of LMS of the sigmoid colon with liver metastases and gastric cancer. Th...

The in ̄uence of the Ga cell temperature on the quality of GaN ®lms grown by MBE on p-Si(1 1 1) substrates was studied for cell temperatures (TGa) in the range from 865°C to 922°C using the RBS/Channeling technique. The ®lms were in situ doped during growth with Er at a constant cell temperature. The ®lms show a strong dependence of the crystalline quality on the Ga cell temperature with the bes...

This paper presents the convergence analysis result of the discrete cosine transform-least-mean-square (DCT-LMS) adaptive "ltering algorithm which is based on a well-known interpretation of the variable stepsize algorithm. The time-varying stepsize of the DCT-LMS algorithm is implemented by the modi"ed power estimator to redistribute the spread power after the DCT. The performance analysis is c...

This paper proposes recommendation services and user profiling features in Learning Management Systems (LMS) by means of a semantic intelligent system combining context information and expert knowledge. LMS users’ context is represented through an ontology model called OntoSakai. It consists of four ontologies parceling different areas of the learning process: competences, users’ profiles, lear...

Leiomyosarcoma (LMS) of soft tissue is a sarcoma with smooth-muscle differentiation, and conventional chemotherapy does not improve its outcome. The application of novel antitumor agents and precise prognostication has been demanded. The expression of the protein Forkhead box M1 (FOXM1), a member of the FOX family, is considered an independent predictor of poor survival in many cancers and sarc...

BACKGROUND β2-adrenoceptor agonists have been shown to reduce the lipopolysaccharide (LPS)-induced cytokine release by human monocyte-derived macrophages (MDMs). We compare the expression of β2-adrenoceptors and the inhibitory effect of formoterol and salmeterol on the LPS-induced release of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and a range of chemokines (CCL2, 3, 4, and IL-8...