Abstract: There is disclosed a blood components collector unit comprising a cannula, a blood collection bag and a membrane type blood components separator which are connected in this order through tubes, and also comprising a plasma collection reservoir and a blood cell collection reservoir, both of which are connected to the blood components separator through tubes, wherein each connection through each tube is in a fixed fashion, thereby providing a unified connection, and wherein the blood collector unit is packed in a container in a sterile state. By the use of the unit of the present invention, whole blood can be collected and separated into blood components easily at a shortened period of time without any cumbersome preparatory operations. In addition, since the unit of the present invention is compact and light in weight and can be used without any other auxiliary apparatus, the unit can be conveyed to and used in any places, such as in automobiles and outdoors.

Abstract: Aquatic animals can be kept in a living condition over a long period of time, without feeding them, by placing the aquatic animals, at a large density of more than 200 kg/m.sup.3 in environmental water; maintaining the temperature of the environmental water in a lowest possible range in which it is possible for the aquatic animals to exist; controlling the concentrations of ammonia compounds, water-soluble organic compounds and carbonic acid radical in the environmental water so that their levels do not exceed 20 ppm, 150 ppm and 1,000 ppm, respectively; and regulating the concentration of molecular oxygen dissolved in the environmental water so that it is 3 ppm or more.

Abstract: Aquatic animals can be kept in living condition over a long period of time by placing the aquatic animals in environmental water in a large density of more than 200 kg/m.sup.3 ; maintaining the temperature of the environmental water at a lowest possible level in which it is possible for the aquatic animals to exist; controlling the concentrations of ammonia compounds, water-soluble organic compounds and carbonic acid radical in the environmental water so that their levels do not exceed 20 ppm, 150 ppm and 1,000 ppm, respectively; and regulating the concentration of molecular oxygen dissolved in the environmental water so that it is 3 ppm or more.

Abstract: Aquatic animals can be kept alive over a long period of time by utilizing the apparatus of the present invention comprising:a water tank for containing aquatic animals and environmental water, which tank has an inside volume large enough to contain the aquatic animals in an amount greater than 200 kg per m.sup.

Abstract: An economically attractive process for industrial production of 4-aminomethyl cyclohexane carboxylic acid-1 in high purity and in high yield is provided. p-Amino benzoic acid is hydrogenated utilizing a ruthenium catalyst in the presence of a specific amount of alkali metal hydroxide. The resulting product is useful as the starting material for polymers or pharmaceuticals.