College students are using social network sites such as Facebook to communicate with their families and friends. However, empirical evidence is needed to examine whether there exists a reciprocal relationship between students' use of social network sites and their psychological well-being. The present study focused on two reciprocally-related research questions: (a) Is there an impact of loneliness on Facebook intensity and motive for using Facebook among first-year college students? (b) Is there an impact of Facebook intensity and motive for using Facebook on loneliness? Data were collected from a sample of 340 first-year college students and were analyzed through structural equation modeling. No reciprocal relationship was found in the study: Facebook intensity had a positive impact on loneliness and, motive for using Facebook did not have any impact on loneliness, whereas loneliness influenced neither Facebook intensity nor motive for using Facebook.

Wide concerns have been raised that the use of cell phones could increase brain tumors. This paper systematically reviews the scientific evidence regarding the associations between cell phone use and brain tumors. The authors’ review suggests two conclusions. First, it is still controversial in regard with the significant associations between cell phone use and increased risk of brain tumors. Second, there exists extensive evidence that the amount of exposure to cell phone radiation plays a key role in determining the significant associations between cell phone use and gliomas, acoustic neuroma, and meningiomas. In general, those who use cell phones for more than ten years, using cell phones more than 20 minutes per day, or cumulative call time for more than 700 hours, or RF-EMF absorption for more than 3000 joules/kg have higher risks to develop brain tumors, whereas those who use cell phones for less than one year have lower risks.

Filial piety (FP) and life satisfaction were being studied among Ningbo, Zhuhai (the Mainland China) and Macau region of China. A total of 1252 undergraduate students were recruited from these three cities. FP is significantly different between eastern (Ningbo) and southern (Zhuhai) China, while FP is not significantly different between the Mainland China and Macau. FP is significantly associated with life satisfaction among these regions. Life satisfaction is significantly different between the Mainland and Macau, as well as eastern (Ningbo) and southern (Zhuhai) China. The results have a practical implication that educators can teach filial piety to students and ask them to respect, obey, and take care of their parents. As students show FP to their parents, their life satisfaction will increase.

Although mobile phones have proved to be lifesaving in certain circumstances, wide concerns have been raised about brain tumors associated with their use. This article systematically reviews previous and current research in regards to mobile phone use and brain tumors. Recently, research (more than 10 years mobile phone use or cumulative mobile phone use more than 1640 hours) has been found that the amount of exposure to mobile phone radiation plays a key role in determining the significant associations between mobile phone use and gliomas, and acoustic neuroma. In general, those who use mobile phones for more than ten years, or cumulative call time for more than 1640 hours, have higher risks to develop brain tumors, especially glioma and acoustic neuroma, than those who use mobile phones for less than one year.