Abstract: The present invention relates to an optically pure (+) or (?) enantiomer of a ruthenium complex having formula (I) as well as the preparation method of said enantiomer, and uses thereof as catalyst, in particular in asymmetric olefin metathesis.

Abstract: A piezoelectric hydrophone with perforations and an array comprising a plurality of hydrophones comprises a stack of layers that are bonded to one another, the layers comprising at least one piezoelectric layer and a plurality of layers referred to as rigid layers, at least two of which are electrode layers, the rigid layers exhibiting a stiffness perpendicularly to the direction of stacking, which stiffness is higher than the stiffness of the piezoelectric layer perpendicularly to the direction of stacking. At least one piezoelectric layer comprises a central zone comprising a set of perforations that pass through the piezoelectric layer solely along the direction of stacking, each perforation being closed tight by closure elements comprising portions of two of the rigid layers, the two rigid layers extending over the entirety of the surface of the central zone.

Abstract: To control the processing of a multimedia object (OM) by a software application (AppL) implemented within a communication device (DC), a control application (AC) implemented in the communication device intercepts a call from the software application to an execution environment (EE) to carry out a basic operation on the multimedia object, the multimedia object being divided into segments each associated with control data (DonC) comprising at least some data from among semantic data (DonSm), sensitivity data (DonSb), and functionality data (DonF), associates transformation parameters (ParT) comprising at least one functionality parameter (ParF) and at least one semantic parameter (ParSm) and one sensitivity parameter (ParSb) with the call, depending upon the context in which the call is executed.

Abstract: A method includes a) in the source domain sending a trusted path computation request to each of the trusted neighboring domains; b) in each trusted downwards neighboring domain, determining whether this latter is the destination domain or not; and if it is not the destination domain, seeking every next trusted downwards neighboring domain and, seeking at least one trusted path segment that can reach a found next trusted downwards neighboring domain, and then forwarding the trusted path computation request to the found next trusted downwards neighboring domain; and re-iterate all the step b. If it is the destination domain, seeking within this destination domain every trusted path segment that can reach the second machine, and, if there is at least one such segment, sending a positive response message; c) when all the trusted downwards neighboring domains have been processed, re-iterate step b for each next trusted downwards neighboring domain.

Abstract: A piezoelectric hydrophone with perforations and an array comprising a plurality of hydrophones comprises a stack of layers that are bonded to one another, the layers comprising at least one piezoelectric layer and a plurality of layers referred to as rigid layers, at least two of which are electrode layers, the rigid layers exhibiting a stiffness perpendicularly to the direction of stacking, which stiffness is higher than the stiffness of the piezoelectric layer perpendicularly to the direction of stacking. At least one piezoelectric layer comprises a central zone comprising a set of perforations that pass through the piezoelectric layer solely along the direction of stacking, each perforation being closed tight by closure elements comprising portions of two of the rigid layers, the two rigid layers extending over the entirety of the surface of the central zone.

Abstract: The present invention provides novel and stable crystalline 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes. The present invention also provides methods of making 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes. The present invention also provides methods of using 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes in catalytic reactions.

Abstract: Described herein are compounds and methods of catalyzing ethenolysis reactions, optionally on an industrial scale. In certain embodiments, the catalysts bear cyclic alkyl amino carbene (CAAC) ligands with an ortho substituent, such as a methyl substituent, on an N-aryl ring. When used to catalyze ethenolysis reactions, certain such compounds produce a turnover number greater than 50,000.

Abstract: An X-ray machine is provided. The X-ray machine comprises an X-ray tube; an X-ray detector placed opposite the X-ray tube in a direction of emission of X-rays; and a mobile device on which the X-ray tube and the X-ray detector are mounted, the mobile device comprising a motor capable of causing the automatic movement of the X-ray machine, and an impact-sensing system coupled to the motor in order to control the movement of the mobile device in the event of an impact applied to the X-ray apparatus.

Abstract: Described herein are compounds and methods of catalyzing ethenolysis reactions, optionally on an industrial scale. In certain embodiments, the catalysts bear cyclic alkyl amino carbene (CAAC) ligands with an ortho substituent, such as a methyl substituent, on an N-aryl ring. When used to catalyze ethenolysis reactions, certain such compounds produce a turnover number greater than 50,000.

Abstract: To control the processing of a multimedia object (OM) by a software application (AppL) implemented within a communication device (DC), a control application (AC) implemented in the communication device intercepts a call from the software application to an execution environment (EE) to carry out a basic operation on the multimedia object, the multimedia object being divided into segments each associated with control data (DonC) comprising at least some data from among semantic data (DonSm), sensitivity data (DonSb), and functionality data (DonF), associates transformation parameters (ParT) comprising at least one functionality parameter (ParF) and at least one semantic parameter (ParSm) and one sensitivity parameter (ParSb) with the call, depending upon the context in which the call is executed.

Abstract: Stable, bent allenes, organometallic complexes of bent allenes are provided along with methods of conducting chemical processes such as olefin metathesis, comprising contacting an olefin substrate with an organometallic complex as described herein, under suitable conditions.

Abstract: Methods are provided for the catalytic hydroamination of compounds having an alkyne or allene functional group, in which the compound is contacted with ammonia or an amine in the presence of a catalytic amount of a gold complex under conditions sufficient for hydroamination to occur.

Abstract: An X-ray machine is provided. The X-ray machine comprises an X-ray tube; an X-ray detector placed opposite the X-ray tube in a direction of emission of X-rays; and a mobile device on which the X-ray tube and the X-ray detector are mounted, the mobile device comprising a motor capable of causing the automatic movement of the X-ray machine, and an impact-sensing system coupled to the motor in order to control the movement of the mobile device in the event of an impact applied to the X-ray apparatus.

Abstract: A device (D) is dedicated to the processing of application notifications that must be transmitted to users' communication terminals (TC) via at least one transmission infrastructure (RC).

Abstract: In order to contact a user who owns a mobile terminal (TM), who is the recipient of a call from a calling user's communicating device (DCa) to the mobile terminal and who cannot be reached by means of the mobile terminal over a telecommunications network (RT), a communication server (SC) determines a level of urgency of the call, determines a list of third-party users who may be placed in contact with the calling user, based on the social relationship between the called user and each third-party user, on geolocation data (Dg) related to the called user and related to third-party users, and on the call's level of urgency, and establishes a call between the calling user at least one third-party user on the list.

Abstract: The present invention provides novel and stable crystalline 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes. The present invention also provides methods of making 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes. The present invention also provides methods of using 1H-1,2,3 triazolium carbenes and metal complexes of 1H-1,2,3 triazolium carbenes in catalytic reactions.

Abstract: Amines and boranes are the archetypical Lewis bases and acids, respectively. The former can readily undergo one-electron oxidation to give radical cations, whereas the latter are easily reduced to afford radical anions. The present invention provides the synthesis of neutral tricoordinate boron derivatives, which act as a Lewis base, and undergoes one-electron oxidation into the corresponding radical cation. The present invention also provides borylene (H—B:) and borinylium (H—B+.) complexes stabilized by two cyclic (alkyl)(amino)carbenes. Ab initio calculations show that the HOMO [Highest Occupied Molecular Orbital] of the borane as well as the SOMO [Singly Occupied Molecular Orbital] of the radical cation are essentially a pair and a single electron in the p(?)-orbital of boron, respectively.

Abstract: The present invention pertains to a method for selecting a communication mode between a first and a second user of at least one communication network comprising the following steps: receiving a request sent by the first user in order to be placed into communication with the second user, determining available communication modes between the first and second user based on at least one status parameter of the second user deduced from the location of said second user and from an activity associated with that location.

Abstract: The present invention provides metal-free abnormal N-heterocyclic carbenes, also known as imidazol-5-ylidenes and metal complexes of abnormal N-heterocyclic carbenes. The present invention also provides methods of making metal-free abnormal N-heterocyclic carbenes and metal complexes of abnormal N-heterocyclic carbenes. The present invention also provides methods of using metal-free abnormal N-heterocyclic carbenes and metal complexes of abnormal N-heterocyclic carbenes in catalytic reactions.

Abstract: Methods are provided for the catalytic hydroamination of compounds having an alkyne or allene functional group, in which the compound is contacted with ammonia or an amine in the presence of a catalytic amount of a gold complex under conditions sufficient for hydroamination to occur.