Abstract:
A method for controlling mollusk populations is provided. Invasive mollusk populations may colonize lakes, rivers, streams, or other water sources such as commercial or industrial facilities. Mollusk populations may be eliminated or controlled by administering an organic acid solution to a raw water source colonized by mollusks. Organic acids such as lactic acid, citric acid, gluconic acid, or glycolic acid may be utilized. Invasive mollusks may also attach to static surfaces such as marine equipment, boat hulls, or live wells. Attached mollusk or mollusk veligers may be eliminated or controlled by spraying attachment surfaces with an organic acid solution.
Abstract:
Sorghum is considered an allelopathic crop species and sorgoleone likely accounts for much of its allelopathic properties. Prior investigations into the biosynthesis of sorgoleone suggested the participation of one or more alkylresorcinol synthases (ARS), which are type III polyketide synthases (PKS) that produce 5-alkylresorcinols using medium to long-chain fatty acyl-CoA starter units via iterative condensations with malonyl-CoA. Quantitative real-time RT-PCR analysis of PKS-like sequences mined from isolated root hairs revealed that two sequences, designated ARS1 and ARS2, were preferentially expressed. Recombinant enzyme studies demonstrated that both sequences encode ARS enzymes capable of accepting a variety of fatty acyl-CoA starter units. RNA interference (RNAi) experiments directed against ARS1 and ARS2 resulted in the generation of multiple independent transformant events exhibiting dramatically reduced sorgoleone levels. Thus, both ARS1 and ARS2 participate in the biosynthesis of sorgoleone in planta. ARS1 and ARS2 sequences were used to identify rice genes encoding alkylresorcinol synthases.
Abstract:
Image editing tools are commonly used to assist with manipulating and saving visual compositions. Many image editing tools provide slicing functionality to create images slices (sub-images) of the visual composition. As provided herein, a slice representation of a visual composition is defined by an arbitrarily chosen set of coordinates within the visual composition. This slice region may be defined independent of other slice regions (e.g. the slice region may or may not overlap, abut, etc. other slice regions). The slice representation comprises the slice region and one or more objects or portions thereof within the slice region. Slice representations may also comprise overlapping objects and/or slice region coordinates. Objects may be manipulated within a slice representation without affecting that object within other slice representations.
Abstract:
Methods and associated systems for improving the visual quality of real-time interactive multimedia presentations, by blending 2-D image data derived from a plurality of 3-D scene views associated with one or more 3-D scenes in accordance with presentation data modifiable by user input in real-time. The 2-D image data rendered from the perspective of the individual scene views are blended together using an associated blend mode in a back to front order producing a 2-D composite image for projection on a display device to a user of the real-time interactive multimedia presentation.
Abstract:
A positioning system includes an actuator, valve (preferably pneumatic), position sensor and an electronic valve controller, integrated in a single unit. Continuously variable setpoints are possible within the range of operation. A preferred control circuit includes a signal converter, a ramp generator to smooth the shape of the command or target value signal applied, a position feedback sensor to report the actual position of the actuator, a controller, and a driver, containing an H-bridge, for controlling the pneumatic valve which feeds air into the actuator mechanism. Integration of all these components into a single unit shortens signal paths, improves resistance to electrical noise, and permits faster response time.
Abstract:
Systems and methods providing computer-implemented content propagation for enhanced document retrieval are described. In one aspect, reference information directed to one or more documents is identified. The reference information is identified from one or more sources of data that are independent of a data source that includes the one or more documents. Metadata that is proximally located to the reference information is extracted from the one or more sources of data. Relevance between respective features of the metadata to content of associated ones of the one or more documents is calculated. For each document of the one or more documents, associated portions of the metadata is indexed with the relevance of features from the respective portions into original content of the document. The indexing generates one or more enhanced documents.
Abstract:
A real-time trade resource management system is shown. In a construction site having one or more points of ingress/egress a tracking assembly at each point of ingress/egress is used to determine when workers are first and last observed on the site. Each worker on the site is assigned to a specific contract for the construction project. A server, computer readable medium, and method for managing trade resources is described.
Abstract:
Sorghum is considered to be an allelopathic crop species, producing phytotoxins such as the lipid benzoquinone sorgoleone (2-hydroxy-5-methoxy-3-[(Z,Z)-8′,11′,14′-pentadecatriene]-p-benzoquinone) which likely accounts for much of its allelopathic properties. Prior investigations into the biosynthesis of sorgoleone have suggested the participation of one or more alkylresorcinol synthases (ARS), which are type III polyketide synthases (PKS) that produce 5-alkylresorcinols using medium to long-chain fatty acyl-CoA starter units via iterative condensations with malonyl-CoA. Current evidence suggests that sorgoleone biosynthesis occurs exclusively in root hair cells, involving the synthesis of a 5-pentadecatrienyl resorcinol intermediate derived from an unusual 16:3 fatty acyl-CoA starter unit. To characterize the enzymes responsible for the biosynthesis of this alkylresorcinol intermediate, a previously-described expressed sequence tag (EST) database prepared from isolated root hairs was first mined for all PKS-like sequences. Quantitative real-time RT-PCR analyses revealed that two of these sequences were preferentially expressed in root hairs, and recombinant enzyme studies demonstrated that both sequences (designated ARS1 and ARS2) encode ARS enzymes capable of accepting a variety of fatty acyl-CoA starter units. Furthermore, RNA interference (RNAi) experiments directed against ARS1 and ARS2 resulted in the generation of multiple independent transformant events exhibiting dramatically reduced sorgoleone levels. Thus, both ARS1 and ARS2 are likely to participate in the biosynthesis of sorgoleone in planta. The sequences of ARS1 and ARS2 were also used to identify several rice genes encoding ARSs, which are likely involved in the production of defense-related alkylresorcinols.
Abstract:
A method is disclosed that includes allowing both frequency and amplitude of a periodic waveform to be adjusted. The method also includes creating the periodic waveform having the frequency and the amplitude. The periodic waveform is coupled to at least one control signal. The at least one control signal is provided to an output suitable for coupling to an actuator of an electronically controlled device. An apparatus and computer program product are disclosed.