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The purpose of this research is to investigate how postpartum mothers conduct self-disclosure on social media may obtain social support and therefore improve their depressive mood.

The authors extract variables of self-disclosure by manual coding postpartum mothers' 835 posts from a parenting social media in China. The ordinary least squares model and the binary logistic regression model are used to test the proposed hypotheses.

The study suggests that both mothers' superficial level disclosure and personal level disclosure positively affect online social support received, and the effect of personal level disclosure on social support is much greater than that of superficial level disclosure. Online social support received is related to the content of the post and reduces mothers' depressive mood. The authors further find that the association between personal level disclosure and depressive mood is fully mediated by social support.

The data are collected from a parenting social network. Although it is the major parenting social media with the most users in China, the generalizability of this model and the findings to other social media need additional research.

This study offers implications for researchers and practitioners with regard to social media uses and impacts, which also has important implications for policy and interventions for the mental health of mothers.

This paper makes theoretical contributions to the literature of social penetration theory and social support by (1) dividing self-disclosure into superficial level disclosure and personal level disclosure according to the intimacy of self-disclosure; (2) empirically investigating the direct effect of online self-disclosure on social support and the mediating effect of social support between online self-disclosure and mothers' depressive mood.

Many scholars have recognized the cultural dependency of the concept of plagiarism and have investigated the influence of cultural attitude on university students' plagiarism; however, since the findings are inconsistent and because plagiarism is a major concern in academic institutions in Asia, we were motivated to examine the understanding and prevalence of plagiarism among Canadian and some Asian language students.

To elicit the data, the questionnaire developed by Maxwell et al. (2008) was adapted for this study. The scale included three sections. In the initial section, the students' background information was inquired. Section two included 10 scenarios, all of which consisted of two levels; understanding and experience. Section three of the scale consisted of five open-ended questions. In fact, the questions intended to complement the survey findings. Finally, in the fourth section, five yes/no questions were asked. Because the respondents could evade answering some open-ended questions, we developed five questions with yes/no answers in order to probe deeper into the participants' answers.

The results showed significant differences among the participants concerning both understanding and prevalence of plagiarism. Most of the differences were between Canadian and Asian students in that Canadians had a higher level of understanding. They also enjoyed a lower rate of incidence of plagiarism. Nevertheless, further analyses revealed that the students' academic misconduct is probably influenced by other factors including lack of proper education rather than cultural differences.

The findings lead us to argue that cultural differences may not be the main source of the prevalence of plagiarism across nations and that Asian language university students plagiarize mainly due to a lack of understanding of the principles of plagiarism. Therefore, Asian universities should take measures to make sure that they promote language students' understanding regarding the misconduct.

Apart from a few studies, no other study has scrutinized plagiarism across cultures. As such, our study attempted to shed more light on the student, especially language students' plagiarism across different nations.

Based on DNase I and reduced graphene oxide (rGO)-magnetic silicon microspheres (MNPS), a highly sensitive and selective fluorescent probe for the detection of PD-L1 was developed.

Here °C we present a feasibility of biosensor to detection of PD-L1 in lung tumors plasma. In the absence of PD-L1°C the PD-L1 aptamer is absorbed on the surface of graphene oxide modified magnetic nanoparticles °8rGO-MNPS°9 and leading to effective fluorescence quenching. Upon adding PD-L1°C the aptamer sequences could be specifically recognized by PD-L1 and the aptamer/PD-L1 complex is formed°C resulting in the recovery of quenched fluorescence.

This sensor can detect PD-L1 with a linear range from 100 pg mL⁻¹ to 100 ng mL⁻¹, and a detection limit of 10 pg•m⁻¹ was achieved.

This method provides an easy and sensitive method for the detection of PD-L1 and will be beneficial to the early diagnosis and prognosis of tumors.