Advantages and disadvantages of undergraduates undertaking part?time employment are indicated from the western literature, together with discussion of the nature, amount and effects of part?time employment. A study is reported of a university in China, using a cross?sectional survey which investigates the characteristics of undergraduates holding a part?time job, the reasons for taking part?time jobs, the positive and negative impacts of taking part?time jobs, the balance between positive and negative impacts, and the characteristics (...) of the employment that undergraduates undertake. Important differences are reported between findings of western studies and those of the university in China. Implications are drawn for further research and development. (shrink)

It has been shown that various types of stress initiate different physiological and neuroendocrine disorders. Oxytocin is mainly produced in the supraoptic nucleus and paraventricular nucleus of the hypothalamus. Hypothalamic OT has antistress effects and attenuates the hypothalamic–pituitary–adrenal axis. One mechanism behind the antistress effects of OT is mediated through the inhibition from GABAA receptors on corticotropin-releasing factor expression at the PVN. Various manual therapies such as acupuncture, transcutaneous electrical nerve stimulation, and massage initiate the stimulation of somatosensory neurons (...) of the body. It is well-known that TENS simulates OT expression, while it inhibits CRF expression at the PVN following chronic stress loading in rodents. Upregulation of OT expression at the hypothalamus is activated by the somatosensory stimulation, which is mediated via the spinothalamic pathway. Thus, somatosensory stimulation is beneficial in treating stress-associated symptoms. Hypothalamic OT is associated with the social behaviors, including maternal care and affiliation. Childhood neglect and/or child abuse are severely responsible for deleterious long-term effects on the cognitive/social activity and behavioral development. At parturition, a profound amount of OT is released into the systemic circulation in response to vaginal and cervical stimulation caused by the body of fetus, which induces the onset of maternal behavior. Peridural anesthesia effectively impairs the sensitivity to vaginal and cervical stimulation at parturition. OT levels in cerebrospinal fluid is significantly reduced following peridural anesthesia. The vaginal delivery mothers had significantly more OT pulses than the caesarian section mothers. Due to low levels of endogenous OT, maternal behavior could be interrupted by epidural anesthesia and CS at parturition because of the reduction of the usual sensory input from the genitalia. (shrink)

This experiment tested alternative explanations of list method directed forgetting effects. Two word lists were studied by 135 subjects. Between lists, subjects were instructed to remember both lists , remember both lists as well as in which list words were studied , or to forget the first list and remember the second . All subjects took both recall and recognition tests with test order varied between subjects. Among subjects who took the recall test first, the forget group showed a directed (...) forgetting effect with both recall accuracy, recall typing time, and recognition reaction time measures. Contextual segregation of List 1 words by forget subjects was ruled out as a sufficient cause of the effect. Limited support was obtained for a differential rehearsal explanation of the effect. Within-group comparisons and findings of release from directed forgetting support inhibitory processes as the major cause of the directed forgetting effect. (shrink)

BackgroundIn China, undergraduate students face both academic and career selection pressures, sleep is an important physiological process for them. Investigate the physical exercise, sleep quality of undergraduate students in the education stage in Xuzhou City, and analyze the factors affecting their sleep quality, to promote the health education and psychological health of undergraduate students.Materials and methodsThe Physical Activity Rating Scale-3, the Pittsburgh Sleep Quality Index, and the demographic information questionnaire were used to survey a whole-group sample of four undergraduate colleges (...) and universities in Xuzhou by cluster sampling, the general characteristics including gender, grade, height, weight, domicile, race, economic income, etc., were collected, and the data were analyzed and processed using chi-square tests and multi-factor logistic regression.Results3,366 valid questionnaires were collected from four undergraduate colleges and universities, including 1,355 males and 2,011 females. The detection rate of exercise in Jiangsu Normal University was lower than that in other universities, and the detection rate of sleep disorders was higher than that in other universities. Xuzhou Medical University, the highest detection rate of large exercise, Xuzhou Institute of Technology, the lowest detection rate of sleep disorders. There were significant differences in the detection rate of large amount of exercise among college students of different genders, grades, body types, and majors. There were significant differences in the detection rate of sleep disorders among college students with different gender, grade, family economic status, daily cell phone use time, cell phone purposeless usage, and exercise level. Multivariate logistic regression analysis showed that grade, family economic status, cell phone use time, cell phone purposeless usage is the main influencing factors of sleep disorders in college students.ConclusionThe sleep problems of undergraduates are serious, especially in Jiangsu Normal University. Scientific and appropriate exercise is an important measure to solve the sleep problems of undergraduates. Colleges and universities should actively carry out health education, college students living habits such as cell phone use should be guided training. (shrink)

The impact of Online Social Networks on human lives is foreseen to be very large with unprecedented amount of data and users. OSN users share their ideas, photos, daily life events, feelings and news. Since OSNs’ security and privacy challenges are more potential than ever before, it is necessary to enhance the protection and filtering approaches of OSNs contents. This paper explores OSNs’ threats and challenges, and categorize them into: account-based, URL-based and content-based threats. In addition, we analyze the existing (...) protection methods and highlight their limitations and weaknesses. Based on that, we propose a comprehensive, user-level, proactive and real-time OSNs’ protection system, called Hybrid Real-time Social Networks Protector. HRSP has three components; a user-level security protocol and two classification models. The protocol defines a structure for OSN’s cryptographic services, including encryption, access control and users’ authentication. The classification models employ machine learning, black lists, white lists and users’ feedback, in order to classify URLs into: Benign, Risk and Inappropriate classes, and contents into: Benign, Hate speech and Inappropriate classes. We constructed two data sets of 150,000 URLs and 22,000 tweets to build and test the two classification models. Results show an overall accuracy of 93.2% for the URL model and 84.4% for the content model, while the protocol implementation produces compatible size and time overhead. The components of HRSP are integrated and have compatible design with OSN platforms. (shrink)

Although Heidegger’s explicit account of “poetic dwelling” belongs to his later philosophy, there are important indications that he was already engaging with the core matter of the notion in his early thought. Contrary to the idea that in Being and Time, “dwelling” amounts to mere practical coping with the environment, we would like to demonstrate that the notion is already a poetic issue in his early thought, as it requires the appropriation of our relation to the world via an (...) authentic experience of finitude. Following a topological mode of thinking, the paper thematizes the connections between Heidegger’s early and later thought, and elucidates the following three points: First, “freeing” and “letting” appears as the appropriate ethos of a poetic experience of finitude, one that maintains the “clearing” of meaningfulness. Second, a topological reading of Being and Time can explicate the notions of authenticity and inauthenticity as different disclosures of the clearing where human being-world correlation occurs. Third, the notion of “keeping-still” (Schweigen) can be interpreted as an authentic disposition that frees space for the disclosure of existence. The paper concludes that an authentic experience of finitude through “stillness” appears to reorient human ethos by releasing “discourse” from absorption in “idle-talk” and that such an act of existential re-orientation of one’s disposition towards the world is the essence of “authenticity,” and Heidegger’s early “poetic dwelling”. (shrink)

The aim of this research was to delimit the predictive and mediational model of resilience between character strengths to predict flourishing, in a sample of undergraduate students. After signing their informed consent, 642 university students completed three validated scales. Using an ex post facto design, regression, structural modeling, and mediation analyses were carried out, in order to construct a multi-causal predictive model. Results indicated a consistent predictive direct effect of character strengths on resilience and flourishing and of resilience on flourishing. (...) As hypothesized, resilience also showed a mediating effect on the relationship between character strengths and flourishing. Additionally, results also revealed that the reactive and proactive factors of resilience were explained by different character strengths, reinforcing the idea that the two directions are complementary and necessary. Finally, several implications were established for the practice of positive psychology. (shrink)