Abstract:
Methods and devices for controlled evaporation of solvent from a solution are provided. In one embodiment, a method for controlled evaporation of solvent from at least one solution includes filling a selected first set of wells in a multi-well plate with a first solution comprising at least one first solvent. The method also includes attaching an inlet manifold to the plate, the inlet manifold comprising an inlet port connected to and in fluid communication only with each of the wells in the selected first set of wells. The method further includes attaching an exhaust manifold to the plate, the exhaust manifold comprising an exhaust port connected to and in fluid communication only with each of the wells in the selected first set of wells. The method also includes introducing a gas into the inlet port and removing solvent vapor from the selected first set of wells.
Abstract:
Methods and devices for controlled evaporation of solvent from a solution are provided. In one embodiment, a method for controlled evaporation of solvent from at least one solution includes filling a selected first set of wells in a multi-well plate with a first solution comprising at least one first solvent. The method also includes attaching an inlet manifold to the plate, the inlet manifold comprising an inlet port connected to and in fluid communication only with each of the wells in the selected first set of wells. The method further includes attaching an exhaust manifold to the plate, the exhaust manifold comprising an exhaust port connected to and in fluid communication only with each of the wells in the selected first set of wells. The method also includes introducing a gas into the inlet port and removing solvent vapor from the selected first set of wells.
Abstract:
An anonymous trading system comprises an interconnected network of broking nodes arranged in cliques which receive buy and sell orders from trader terminals via connected trading engines and which match persistent orders, executed deals and distribute price information to trader terminals. The system has the ability for a trader to call out for a quote (request for a quote) anonymously. RFQs are only transmitted on to potential counterparties if they are within a predetermined price range. The RFQs include a price at which the requesting party is willing to deal, but this price is not communicated potential counterparties. Counterparty responses are matches on a time, price basis and non-matched responses may be matched with themselves. Similarly, non-matched RFQs may be matched with each other.
Abstract:
Disclosed herein is a volume displacement pipette that includes a channel within the piston. The channel allows for cleaning fluids to be continuously run through the pipette tip for cleaning the tip. One end of the channel may be closed during normal operation of the pipette. Multiple pipettes may be combined into an array pipetter.
Abstract:
An apparatus, and particularly, a wafer carrier for polishing the face of a semiconductor wafer are provided. The wafer carrier forms a first cavity which can be pressure controlled to vary the shape of a face of a platen which contacts the wafer during polishing. A second cavity within the first cavity is provided. The second cavity can be independently pressure controlled to form a vacuum for holding the wafer against the platen surface or for forming a pressure stream to separate the wafer from the platen and/or to purge the holes in the surface of the platen. A non-contact displacement sensor capable of measuring a distance between the wafer carrier mount and the platen, may be provided. An endpoint detector capable of detecting a relative surface roughness of the wafer, to determine when the wafer has been sufficiently polished, may also be provided. A ring is peripherally located about an outer edge of the platen, and is mounted and positioned to resist lateral forces on the wafer during polishing. The ring is adjustably mounted so as to be variably and controllably vertically positioned, with respect to the wafer to help control standing waves in the polishing media and uneven polishing of the wafer surface.
Abstract:
The invention is based on the discovery of the epitope in the Stx2 protein for the 11 E1O antibody. The invention features compositions containing non-full length Stx2 polypeptides that include the 11 E1O monoclonal antibody epitope. The invention also features methods of producing anti-Stx2 antibodies specific for the 11 E1O epitope of the Stx2 protein. Additionally, the invention features methods for treating a subject having, or at risk of developing, a Shiga toxin associated disease (e.g., hemolytic uremia syndrome and diseases associated with E. coli and S. dysenteriae infection) with a polypeptide that includes the 11 E1O epitope or with an anti-Stx2 antibody developed using the methods of the invention. Furthermore, the invention features the detection of Stx2 in a sample using the antibodies developed using the methods of the invention.
Abstract:
A computer trading system includes a quote screening function configured to accept quotes specifying a quote amount in a price where the quote amount is greater than a minimum quote amount to produce screen quote messages and to reject quotes specifying a quote amount less than the minimum quote amount. A market view generator generates market views from those quotes which specify an amount greater than or equal to the minimum quote amount. An order screening function only-accepts orders specifying an amount less than a maximum transaction amount submitted in response to the market views to produce screened order messages. A transaction processor receives screened quote messages and screened order messages and matches appropriate messages with each other. The minimum quote amount is substantially equal to or greater than the maximum transaction amount whereby a screened order message can be matched entirely with one screened quote message.
Abstract:
Methods and devices for inline sampling of a bulk material, such as a powder, are provided. The material's bulk density can be determined from samples drawn using methods and devices described herein. One embodiment of a method of sampling a material allows the material to flow through a sampling compartment, closes off the flow of material below the sampling compartment, builds up a column of material through the sampling compartment, shifts the sampling compartment to remove a slice of material in the column, and places the slice of material into a sample container. A device for sampling a material is provided in another embodiment. The device includes an inlet, an outlet aligned with the inlet, and a sample collector. The sample collector can include at least one through hole and be configured to move such that the at least one through hole can be moved into and out of alignment with the inlet and the outlet.
Abstract:
A computer trading system includes a quote screening function configured to accept quotes specifying a quote amount in a price where the quote amount is greater than a minimum quote amount to produce screen quote messages and to reject quotes specifying a quote amount less than the minimum quote amount. A market view generator generates market views from those quotes which specify an amount greater than or equal to the minimum quote amount. An order screening function only accepts orders specifying an amount less than a maximum transaction amount submitted in response to the market views to produce screened order messages. A transaction processor receives screened quote messages and screened order messages and matches appropriate messages with each other. The minimum quote amount is substantially equal to or greater than the maximum transaction amount whereby a screened order message can be matched entirely with one screened quote message.
Abstract:
Systems and methods for monitoring laboratory animals includes a tag comprising an inductive element and a capacitive element attached to a portion of a laboratory animal. The position of the portion is detected by monitoring the effect of the tag on a time-varying magnetic field having different frequencies, one near tag resonance, and one away from tag resonance.