Abstract: Systems and methods of the various embodiments may provide metal electrodes for electrochemical cells. In various embodiments, the electrodes may comprise iron. Various methods may enable achieving high surface area with low cost for production of metal electrodes, such as iron electrodes.

Abstract: In some embodiments, an electronic device present navigation routes from various perspectives. In some embodiments, an electronic device modifies display of representations of (e.g., physical) objects in the vicinity of a navigation route while presenting navigation directions. In some embodiments, an electronic device modifies display of portions of a navigation route that are occluded by representations of (e.g., physical) objects in a map. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps in response to requests to search for (e.g., physical) objects.

Abstract: A method for coupling a first medical device component to a second medical device component comprising altering the first medical device component from a natural state to an altered state, by reducing a cross-sectional dimension of the first medical device, fitting a first portion of the first medical device component in the altered state into a first opening of the second medical device component, wherein the first medical device component includes second portions not within the first opening of the second medical device component, and allowing the second portions of the first medical device component to revert back to the natural state.

Abstract: Systems and methods of the various embodiments may provide metal electrodes for electrochemical cells. In various embodiments, the electrodes may comprise iron. Various methods may enable achieving high surface area with low cost for production of metal electrodes, such as iron electrodes.

Abstract: Provided is a medical device formed entirely from or formed partially from a polymer, e.g., a polysaccharide such as chitosan. In some embodiments, the medical device may be formed as a tubular member formed from a sheet of a chitosan material. This chitosan tube may be used to wrap around tissue, such as a nerve or tendon to help with the regeneration or healing process of the nerve or tendon, as applicable.

Abstract: In some embodiments, an electronic device present navigation routes from various perspectives. In some embodiments, an electronic device modifies display of representations of (e.g., physical) objects in the vicinity of a navigation route while presenting navigation directions. In some embodiments, an electronic device modifies display of portions of a navigation route that are occluded by representations of (e.g., physical) objects in a map. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps in response to requests to search for (e.g., physical) objects.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Provided is a medical device formed entirely from or formed partially from a polymer, e.g., a polysaccharide such as chitosan. In some embodiments, the medical device may be formed as a tubular member formed from a sheet of a chitosan material. This chitosan tube may be used to wrap around tissue, such as a nerve or tendon to help with the regeneration or healing process of the nerve or tendon, as applicable.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: In some embodiments, an electronic device present navigation routes from various perspectives. In some embodiments, an electronic device modifies display of representations of (e.g., physical) objects in the vicinity of a navigation route while presenting navigation directions. In some embodiments, an electronic device modifies display of portions of a navigation route that are occluded by representations of (e.g., physical) objects in a map. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps. In some embodiments, an electronic device presents representations of (e.g., physical) objects in maps in response to requests to search for (e.g., physical) objects.

Abstract: Spinal interbody cages are provided that include a bulk interbody cage, a top face, a bottom face, pillars, and slots. The pillars are for contacting vertebral bodies. The slots are to be occupied by bone of the vertebral bodies and/or by bone of a bone graft. The spinal interbody cage has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1.

Abstract: Spinal interbody cages are provided that include a bulk interbody cage, a top face, a bottom face, a top mesh structure, a bottom mesh structure, pillars, and slots. The top and bottom faces are exterior surfaces of the bulk interbody cage having a top central opening and a bottom central opening, respectively. The top and bottom mesh structures extend from the bulk interbody cage across the top central opening and the bottom central opening, respectively. The pillars are for contacting vertebral bodies. The slots are to be occupied by bone of the vertebral bodies and/or by bone of a bone graft. The spinal interbody cage has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Spinal interbody cages are provided that include a bulk interbody cage, a top face, a bottom face, a top mesh structure, a bottom mesh structure, pillars, and slots. The top and bottom faces are exterior surfaces of the bulk interbody cage having a top central opening and a bottom central opening, respectively. The top and bottom mesh structures extend from the bulk interbody cage across the top central opening and the bottom central opening, respectively. The pillars are for contacting vertebral bodies. The slots are to be occupied by bone of the vertebral bodies and/or by bone of a bone graft. The spinal interbody cage has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1.

Abstract: Hard-tissue implants are provided that include a bulk implant, a face, pillars, slots, and at least one support member. The pillars are for contacting a hard tissue. The slots are to be occupied by the hard tissue. The at least one support member is for contacting the hard tissue. The hard-tissue implant has a Young's modulus of elasticity of at least 3 GPa, and has a ratio of the sum of (i) the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1. Methods of making and using hard-tissue implants are also provided.

Abstract: Orthopedic screws are provided that include a tip, a head, and a shaft extending between the tip and the head. The shaft comprises a shaft core and at least one thread. The thread is disposed helically along the shaft, extends radially from the shaft, and has a plurality of grooves oriented transversely with respect to the thread. The plurality of grooves define a series of thread segments and thread slots along the thread. The shaft core is solid from the tip to the head. Cannulated orthopedic screws also are provided that include a shaft core that is hollow from the tip to the head and that defines a lumen extending from a tip opening to a head opening. Methods of use of the orthopedic screws and the cannulated orthopedic screws also are provided.