摘要:
Methods and kits are described that allow the efficient capture and detection of targets employing the dA-dT and related affinity pairs from samples potentially containing large amounts of poly(rA) and/or poly(dA).
摘要:
Message RNA is immobilized directly from cells onto filter material. Immobilization is carried out by solubilizing cellular components with a chaotropic salt, passing the resultant solubilized cellular components through a filter which selectively binds message RNA and baking the filter containing bound message RNA. The chaotropic salt is preferably sodium iodide, potassium iodide or sodium perchlorate. Prior to solubilizing, the cells may be washed and lysed. The bound message RNA can be hybridized to a labeled probe and the amount of message RNA measured. Prior to baking, the filter containing bound RNA may be incubated in a solution which acelylates basic protein and other molecules which might interfere with molecular hybridization.
摘要:
A polymer composition comprises: (a) a high molecular weight, branched component; and (b) a low molecular weight, branched component. Some polymer compositions are characterized by a substantial absent of amyl or methyl branches and a melt strength (MS) that satisfies the following relationship: MS ≥ x I 2 + y where x is greater than or equal to about 12.5 and y is greater than or equal to about 3. Some polymers are characterized by a melt strength (MS) that satisfies the following relationship: MS ≥ x I 2 + y where x is greater than or equal to about 3 and y is greater than or equal to about 4.5 and a molecular weight distribution of greater than 3. A process for making polymers is also disclosed.
摘要:
A document management extension system for use as an extension to document collection and management software, includes an information store having a database and a messaging system for storing documents managed by the document collection and management software, with stored documents being stored in at least one of the database or the messaging system of the information store. The document management extension system also includes document indexing of the database or messaging system for the documents stored therein, along with processing of the documents stored in either the database or messaging system of the information store.
摘要:
A document management extension system for use as an extension to document collection and management software, includes an information store having a database and a messaging system for storing documents managed by the document collection and management software, with stored documents being stored in either the database, the messaging system, or both, of the information store. The document management extension system also includes document indexing of the database or messaging system for the documents stored therein, along with processing of the documents stored in either the database or messaging system of the information store.
摘要:
The present disclosure discloses an object position detector. The object position detector comprises a touch sensor formed as a closed loop and having a physical constraint formed on an upper surface of the touch sensor and coextensive with the closed loop. The touch sensor is configured to sense motion of an object proximate to the closed loop. The object position detector also comprises a processor coupled to the touch sensor and is programmed to generate an action in response to the motion on the touch sensor.
摘要:
A method for searching documents, which uses a concept based retrieval methodology, uses for any query an adaptive self-generating neural network for analyzing concepts contained in the documents being searched as such concepts occur. The method automatically creates, abstracts and populates categories of concepts for each query, and is not restricted to language, but can also be applied to non-text data, such as voice, music, image and film. The method is able to deliver search results that are relevant to the query and to the context of the query and, therefore, arranges results by concept, rather than keyword occurrence.
摘要:
A process of making a polymer is described. The process includes contacting one or more olefinic monomers in the presence of at least a high molecular weight (HMW) catalyst and at least a low molecular weight (LMW) catalyst in a polymerization reactor system; and effectuating the polymerization of the one or more olefinic monomers in the polymerization reactor system to obtain an olefin polymer, wherein the LMW catalyst has an RvL, defined as R v L = [ vinyl ] [ vinyl ] + [ vinylidene ] + [ cis ] + [ trans ] wherein [vinyl] is the concentration of vinyl groups in the olefin polymer produced by the low molecular weight catalyst expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the olefin polymer expressed in the number of the respective groups per 1,000 carbon atoms, of greater than 0.12, and wherein the HMW catalyst has a reactivity ratio, r1 of about 5 or less.
摘要翻译:描述制备聚合物的方法。 该方法包括在聚合反应器系统中在至少一种高分子量(HMW)催化剂和至少一种低分子量(LMW))催化剂的存在下使一种或多种烯属单体接触; 并且在聚合反应器体系中实现一种或多种烯烃单体的聚合以获得烯烃聚合物,其中LMW催化剂具有RvL,定义为R v L = [乙烯基] [乙烯基] + [亚乙烯基] + [顺式] + [反式]其中[乙烯基]是由以乙烯基/ 1,000个碳原子表示的低分子量催化剂制备的烯烃聚合物中乙烯基的浓度; [亚乙烯基],[顺式]和[反式]是烯烃聚合物中每1000个碳原子数目表示的亚乙烯基,顺式和反式基团的浓度大于0.12,并且其中HMW催化剂具有 反应性比例r1约为5或更小。
摘要:
A polymer composition that has a backbone chain; and a plurality of long chain branches connected to the backbone is described. The polymer composition also has a value of 2g′LCB-1g′LCB that is less than about 0.22, where 1g′LCB is the long chain branching index for a fraction of the composition having a Mw of 100,000 and 2g′LCB is the long chain branching index for a fraction of the composition having a Mw of 500,000.
摘要:
Film layers made from formulated polymer compositions are disclosed. Film layers made from such formulated compositions have surprisingly good (for example, low) water vapor transmission rates and are particularly useful for packaging dry goods such as cereal. The polymer compositions preferably have at least one homogeneous ethylene homopolymer and at least one heterogeneously branched ethylene polymer. The homogeneous ethylene homopolymer has a molecular weight much higher than that of the heterogeneously branched ethylene polymer, although the density of each is preferably higher than about 0.95 g/cm3.
摘要翻译:公开了由配制的聚合物组合物制成的薄膜层。 由这种配制的组合物制成的薄膜层具有惊人的良好(例如,低)水蒸汽透过率,并且特别适用于包装诸如谷物的干货。 聚合物组合物优选具有至少一种均匀的乙烯均聚物和至少一种非均匀支化的乙烯聚合物。 均匀的乙烯均聚物的分子量远高于非均匀支化的乙烯聚合物的分子量,尽管它们的密度优选高于约0.95g / cm 3。