Abstract: The invention provides a compound of formula (I): or a salt thereof, wherein R1-R5 have any of the values described in the specification, as well as compositions comprising a compound of formula (I). The compounds are useful as RNA polymerase inhibitors and antibacterial agents.

Abstract: The invention relates to a retinoid derivative and pharmaceutical composition and use thereof. The compound of the invention is capable of preventing or treating hematological tumors, such as acute leukemia, chronic leukemia, multiple myeloma and lymphoma, solid tumors, such as liver cancer, rectal cancer, mammary cancer and esophagus cancer, and skin disorders, such as psoriasis and acne.

Abstract: The invention relates to a retinoid derivative and pharmaceutical composition and use thereof. The compound of the invention is capable of preventing or treating hematological tumours, such as acute leukemia, chronic leukemia, multiple myeloma and lymphoma, solid tumours, such as liver cancer, rectal cancer, mammary cancer and esophagus cancer, and skin disorders, such as psoriasis and acne.

Abstract: An electrical connector (1) for electrically connecting with a modular plug (2) includes an insulative housing (10) having a receiving cavity (100) and a resisting block (126) formed in the receiving cavity and having a curved surface (122). A number of contacts (20) is mounted in the receiving cavity. Each contact has a mating portion (21) extending into the receiving cavity and cantilevered above the resisting block. The modular plug is engaged with the mating portion and presses the mating portion to the resisting block when the modular plug is inserted into the receiving cavity. When the plug connector is inserted into the receiving cavity, the mating potion abuts against the curved surface.

Abstract: An electrical connector (100) has an insulative housing (10) including a top wall (12), a bottom wall (13) and a pair of opposite side walls (14), an upper shell (31) and a lower shell (32) locking with the upper shell. The upper shell has a top plate (311) and a pair of side plates (312) at least partially enclose the bottom and the side walls of the housing. The upper shell has a bottom plate (321) and a pair of side wings (322) at least partially enclosing the top and the side walls of the housing. Each side wall of the insulative housing includes a flange portion (17) protruding outwardly therefrom. The side wing of the lower shell are guided onto the side plates of the upper shell by the flange portions and partially overlapping with the upper shell.

Abstract: A modular jack (100) for receiving a mating plug includes a visual indicator (3) having a lighting pipe (31), a pair of pins (32) extending from the lighting pipe and a separate guiding pipe (33), and an insulative housing (1) including a front face (1), an opposite rear face (13), side faces (12) connecting with the front face and rear face. The insulative housing defines a pipe slot (152) extending through the front face and the side face for receiving the guiding pipe, and further has a receiving channel (152) in communication with the pipe slot for receiving the lighting pipe and a number of pin slots (151) extending rearwardly and through the rear face of the housing for receiving the pins.

Abstract: A modular jack (100) for receiving a mating plug includes a visual indicator (3) having a lighting pipe (31), a pair of pins (32) extending from the lighting pipe and a separate guiding pipe (33), and an insulative housing (1) including a front face (1), an opposite rear face (13), side faces (12) connecting with the front face and rear face. The insulative housing defines a pipe slot (152) extending through the front face and the side face for receiving the guiding pipe, and further has a receiving channel (152) in communication with the pipe slot for receiving the lighting pipe and a number of pin slots (151) extending rearwardly and through the rear face of the housing for receiving the pins.

Abstract: An electrical connector (1) for electrically connecting with a modular plug (2) includes an insulative housing (10) having a receiving cavity (100) and a resisting block (126) formed in the receiving cavity and having a curved surface (122). A number of contacts (20) is mounted in the receiving cavity. Each contact has a mating portion (21) extending into the receiving cavity and cantilevered above the resisting block. The modular plug is engaged with the mating portion and presses the mating portion to the resisting block when the modular plug is inserted into the receiving cavity. When the plug connector is inserted into the receiving cavity, the mating potion abuts against the curved surface.

Abstract: An electrical connector (100) has an insulative housing (10) including a top wall (12), a bottom wall (13) and a pair of opposite side walls (14), an upper shell (31) and a lower shell (32) locking with the upper shell. The upper shell has a top plate (311) and a pair of side plates (312) at least partially enclose the bottom and the side walls of the housing. The upper shell has a bottom plate (321) and a pair of side wings (322) at least partially enclosing the top and the side walls of the housing. Each side wall of the insulative housing includes a flange portion (17) protruding outwardly therefrom. The side wing of the lower shell are guided onto the side plates of the upper shell by the flange portions and partially overlapping with the upper shell.