Abstract: Provided are a lipid and a composition that can effectively deliver an introduction compound such as a nucleic acid to a target cell, tissue, or the like in vivo.

Abstract: A work machine control device includes a measurement-data acquisition unit that acquires measurement data of a three-dimensional measurement device that is mounted on a work machine including work equipment and measures a three-dimensional shape including a ridgeline of a work target on which the working equipment performs work, and a target calculation unit that calculates and outputs, based on the measurement data regarding the ridgeline of the work target, a distance from the work machine to the work target or an angle of repose of the work target.

Abstract: A control system of a work machine includes: a three-dimensional measurement device 20 that measures a work target of a work machine 1; a detection device 25 that detects the work target; and a working equipment control unit 87 functioning as an intervention control unit that performs intervention control of the work machine 1 when both the three-dimensional measurement device 20 and the detection device 25 have detected the work target.

Abstract: A golf club head having a hollow portion therein, the head includes a main body including a crown portion and a sole portion, and a face member forming at least a part of a striking face for striking a ball. The main body is made of a first material having a first specific gravity. The face member is formed of a second material having a second specific gravity smaller than the first specific gravity. The main body is provided with at least one slit that penetrates the main body, and the at least one slit extends in a head-front-back direction.

Abstract: A golf club head having a hollow portion therein, the head includes a face portion, and a main body including a crown portion and a sole portion each extending backwardly from the face portion. The main body is provided with at least one slit that penetrates the main body and extends in a head-front-back direction. The at least one slit includes a pair of slit inner walls extending in the head-front-back direction and at least one joint connecting the pair of slit inner walls to each other.

Abstract: A golf club head with a hollow therein comprises a face portion and a main body portion including a crown portion and a sole portion extending rearward from the face portion. The main body portion is provided with at least one slit penetrating through the main body portion. The slit has a width in the toe-heel direction and a length in the front-rear direction which is larger than the width. The surrounding area of the slit is at least partially provided with a thick portion.

Abstract: A golf club head having a cavity therein comprises a wall at least a part of which is formed as a convexo-concave wall portion. The convexo-concave wall portion is composed of convexed portions repeatedly arranged in a first direction and a second direction intersecting the first direction, and concaved portions formed between the convexed portions. Each of the convexed portions includes at least one first protrusion extending in the first direction and at least one second protrusion extending in the second direction.

Abstract: A golf club head having a cavity therein comprises a wall at least a part of which is formed as a convexo-concave wall portion. The convexo-concave wall portion is composed of convexed portions repeatedly arranged in a first direction and a second direction intersecting the first direction, and concaved portions formed between the convexed portions. Each of the convexed portions includes at least one first protrusion extending in the first direction and at least one second protrusion extending in the second direction.

Abstract: A method of forming a coating film includes dropping a first chemical onto a substrate to be treated and rotating the substrate, thereby forming a first coating film, the first chemical being comprised of a solvent and a solid added to the solvent, baking the first coating film, dropping a second chemical onto a first-chemical poorly-coated region of the stationary substrate, thereby forming a second coating film, the second chemical being comprised of a solvent and a solid added to the solvent, drying the second coating film, and baking the second coating film.