Abstract: An antenna includes a reflector and a pair of feed stalks on a forward facing surface of the reflector. The pair of feed stalks includes: (i) a first feed stalk having first and second ports, and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively, and (ii) a second feed stalk having first and second ports and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively. First and second pairs of radiating arms are provided. The first pair of radiating arms are electrically connected to the first and second ports of the first feed stalk and the second pair of radiating arms are electrically connected to the first and second ports of the second feed stalk.

Abstract: Provided herein are methods and compositions for improved sequencing techniques using, for example, polymeric particles and/or three-dimensional structures.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Disclosed herein, inter alia, are devices and methods for transfer and analysis of tissue sections using carrier substrates.

Abstract: Disclosed herein, inter alia, are methods for the transfer and manipulation of tissue sections using hydrogel substrates.

Abstract: Base station antennas include first and second radio frequency (“RF”) ports and a first antenna array that includes both first and second radiating elements. Each of the first radiating elements includes a first radiator that is connected to the first RF port that is configured to radiate at a first polarization and a second radiator that is connected to the second RF port that is configured to radiate at the first polarization. Each of the second radiating elements includes a first radiator that is connected to the first RF port that is configured to radiate at a second polarization that is different from the first polarization and a second radiator that is connected to the second RF port that is configured to radiate at the second polarization.

Abstract: Provided herein are methods and compositions for improved sequencing techniques using, for example, polymeric particles and/or three-dimensional structures.

Abstract: Base station antennas are provided that include a reflector assembly and a radiating element. The reflector assembly includes a reflector. The radiating element extends forwardly from the reflector. The reflector includes a nonmetallic substrate, and a metal layer mounted on the substrate.

Abstract: Disclosed herein, inter alia, are compositions and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections, using carrier substrates.

Abstract: Disclosed herein, inter alia, are devices and methods for transfer and analyses of tissue sections using carrier substrates.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Disclosed herein, inter alia, are compositions and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections, using carrier substrates.

Abstract: A rigid gas permeable prepolymer comprising a reaction product of (a) a rigid gas permeable-forming prepolymer comprising (i) monomeric units derived from a bulky siloxane monomer containing an ethylenically unsaturated reactive end group, and (ii) monomeric units derived from a hydrophilic monomer having one or more reactive functionalities and an ethylenically unsaturated reactive end group, and (b) a monomer having a reactive functionality complementary to one of the one or more reactive functionalities of the hydrophilic monomer and a polymerizable ethylenically unsaturated reactive end group complementary to an ethylenically unsaturated reactive group of a rigid gas permeable contact lens-forming comonomer. Rigid gas permeable contact lenses formed from the rigid gas permeable prepolymers are also disclosed.

Abstract: A radiating element includes a feed stalk and first through fourth dipole arms. An outer segment of the first dipole arm and an outer segment of the second dipole arm are configured to together form a first radiating structure that radiates at a first polarization, an outer segment of the third dipole arm and an outer segment of the fourth dipole arm are configured to together form a second radiating structure that radiates at the first polarization, and first and second inner portions of each of the first through fourth dipole arms are configured to together form a third radiating structure that radiates at the first polarization when a first RF signal is fed to the radiating element.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: An antenna includes a reflector and a pair of feed stalks on a forward facing surface of the reflector. The pair of feed stalks includes: (i) a first feed stalk having first and second ports, and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively, and (ii) a second feed stalk having first and second ports and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively. First and second pairs of radiating arms are provided. The first pair of radiating arms are electrically connected to the first and second ports of the first feed stalk and the second pair of radiating arms are electrically connected to the first and second ports of the second feed stalk.

Abstract: A method for preparing a contact lens containing an ultraviolet (UV) blocker is disclosed. The method involves (a) polymerizing a monomeric mixture comprising (i) one or more contact lens-forming comonomers, and (ii) one or more UV blockers comprising a phenolic group having a protected hydroxyl moiety and one or more ethylenically unsaturated reactive groups to obtain a polymerization product comprising the one or more UV blockers comprising a phenolic group having a protected hydroxyl moiety, and (b) deprotecting the protected hydroxyl moiety of the one or more UV blockers of the polymerization product.

Abstract: A hybrid coupler includes a 90° hybrid coupler and a first quarter wavelength conductive stub. The 90° hybrid coupler includes a coupling section, a first input transmission line that is coupled to the coupling section, a second input transmission line that is coupled to the coupling section, a first output transmission line that is coupled to the coupling section and a second output transmission line that is coupled to the coupling section. The first quarter wavelength conductive stub is coupled to the second output transmission line.

Abstract: Disclosed herein, inter alia, are devices and methods for transfer and analyses of tissue sections using carrier substrates.