Abstract: A lawn mower includes a vehicle body, and a grass-cutting unit for cutting grass into long grass strips that move into a grass-shredding device, within which the long grass strips are shredded. Shredded grass drops from the grass-shredding device onto the lawn so as to serve as humus.

Abstract: A system and method of Acoustic Echo Cancellation includes a digital filter used to estimate the echo path is split into 2 filters: one fixed infinite impulse response (IIR) filter and one adaptive finite impulse response (FIR) filter. The fixed filter models the composite frequency response of the loudspeaker, its cabinet enclosure and the direct coupling path between the loudspeaker and the microphone(s). The adaptive filter models the time varying characteristics of the indirect coupling path between the loudspeaker and microphone.

Abstract: Visitor interests can be tracked by including “keyword directives” in content contained within the web site. These keyword directives specify a keyword indicating the type of category of information represented by the content. As the content is delivered to the visitor in the form of a web page, the number of keyword directives attached to the content is accumulated into a specified visitor profile. Over time, this visitor profile can represent the types of information the visitor has viewed and serve as an indicator of his or her preferences. In this way, the invention can accumulate a visitor profile unobtrusively, without requiring the visitors to fill out a survey or questionnaire. The profile may also be augmented with explicit information the visitor provides over time, such as a name or address provided when ordering a product from the site. The invention then delivers personalized pages to the visitor by examining such visitor's profile.

Abstract: First and second lead layer structures are provided for a read sensor which have low resistance, hardness and reliability at operating temperatures of the read head. Each lead layer structure includes a layer of molybdenum (Mo) on a seed layer structure including a layer of tantalum (Ta) and/or a seed layer of chromium (Cr).

Abstract: The present invention is based on the discovery and cloning of the human small conductance calcium activated potassium channel type 3 (hKCa3/KCNN3) gene, which is expressed in neuronal cells, skeletal muscle, heart, and lymphocytes. Alterations in the hKCa3/KCNN3 gene or its protein product may enhance susceptibility to schizophrenia and/or bipolar disorder. hKCa3/KCNN3 may be involved in neuropsychiatric, neurological, neuromuscular, and immunological disorders. Substantially purified hKCa3/KNN3 polypeptides and polynucleotides are provided. Antibodies which bind to hKCa3/KCNN3 polypeptides are also disclosed. A method for identifying a compound which affects hKCa3/KCNN3 polynucleotide or polypeptide is provided. A method for diagnosis and determining the prognosis and treatment regimen of a subject having or at risk of having a hKCa3/KCNN3-associated disorder is also provided.

Abstract: In accordance with the present invention, there provided a class of pyridine compounds which are modulators of acetylcholine receptors. The compounds of the invention displace acetylcholine receptor ligands from their binding sites.