Abstract: An information processing system is capable of communicating with an external apparatus via a network. The information processing system is capable of operating in at least three operation modes including: a first mode; a second mode, which consumes less power than the first mode; and a third mode, which consumes less power than the second mode and where the communication via the network is not performed. The information processing system includes a mode control section and a second mode processing section. The mode control section, when the information processing system operates in the third mode, shifts the operation mode to the second mode periodically or in accordance with a predetermined time schedule. The second mode processing section performs a communication process via the network as information processing in the second mode.

Abstract: In a communication system of the present invention, a HeNB measures interference in Step ST41 in an energy saving mode. When judging to have detected the interference by a UE during communication with an eNB in Step ST42, the HeNB cancels the energy saving mode and moves to a normal mode in Step ST43 and starts issuing a pilot signal in Step ST44. When the UE judges to have detected the pilot signal in Step ST23 and reports the judgment results to the eNB in Step ST24, in Steps ST25 to ST32, a handover process from the eNB to the HeNB is performed for the UE.

Abstract: In a communication system of the present invention, a HeNB measures interference in Step ST41 in an energy saving mode. When judging to have detected the interference by a UE during communication with an eNB in Step ST42, the HeNB cancels the energy saving mode and moves to a normal mode in Step ST43 and starts issuing a pilot signal in Step ST44. When the UE judges to have detected the pilot signal in Step ST23 and reports the judgment results to the eNB in Step ST24, in Steps ST25 to ST32, a handover process from the eNB to the HeNB is performed for the UE.

Abstract: In a communication system of the present invention, a HeNB measures interference in Step ST41 in an energy saving mode. When judging to have detected the interference by a UE during communication with an eNB in Step ST42, the HeNB cancels the energy saving mode and moves to a normal mode in Step ST43 and starts issuing a pilot signal in Step ST44. When the UE judges to have detected the pilot signal in Step ST23 and reports the judgment results to the eNB in Step ST24, in Steps ST25 to ST32, a handover process from the eNB to the HeNB is performed for the UE.

Abstract: In a communication system, a HeNB measures interference in an energy saving mode. When judging to have detected the interference by a UE during communication with an eNB, the HeNB cancels the energy saving mode and moves to a normal mode and starts issuing a pilot signal. When the UE judges to have detected the pilot signal and reports the judgment results to the eNB, a handover process from the eNB to the HeNB is performed for the UE.

Abstract: In a communication system, a HeNB measures interference in an energy saving mode. When judging to have detected the interference by a UE during communication with an eNB, the HeNB cancels the energy saving mode and moves to a normal mode and starts issuing a pilot signal. When the UE judges to have detected the pilot signal and reports the judgment results to the eNB, a handover process from the eNB to the HeNB is performed for the UE.

Abstract: There is provided an oral antihepatopathic composition comprising protoporphyrin IX-Zn(II) complex. By oral administration, the complex can suppress the elevation of GPT and GOT as well as the increase of liver weight in a living body suffering from hapatic disorder, which contributes to prevention or relief of the disease.

Abstract: Novel porphyrin derivatives of the general formula: ##STR1## wherein R.sub.1 each independently denotes a hydrogen, a C.sub.1 -C.sub.4 alkyl group or an ethenyl group, and R.sub.2 each independently denotes COZ(C.sub.m H.sub.2m)Q, COZCH(C.sub.m H.sub.2m Q).sub.2, --CH.sub.2 --Q [wherein Z is O, S or NH, m is an integer of 1 to 23, and Q is a di-(C.sub.1 -C.sub.4 alkyl)amino group or tri-(C.sub.1 -C.sub.4 alkyl)ammonium halide group] or ##STR2## (wherein X is a halogen); or R.sub.1 each independently denotes --C.sub.2 H.sub.4 --Q (wherein Q is the same as defined above), ##STR3## (wherein X is the same as defined above), and R.sub.2 each independently denotes a carboxyl group or a C.sub.1 -C.sub.4 alkoxycarbonyl group, and the production thereof are described. The quarternary ammonium salt type of the above compounds exhibit affinity and photosensitizing activity for cancer cells and can be employed for diagnosing and treating cancer under irradiation of laser light.