The term positive chemotaxis is identified in base64 scheme by the sequence cG9zaXRpdmUgY2hlbW90YXhpcw==, while the MD5 signature is equal to 60fe1c0a6a9ce7eee2762d621dc4840a. The ASCII encoding of positive chemotaxis in hexadecimal notation is 706f736974697665206368656d6f7461786973.