To Assess the Psychological Impact (Stress and Anxiety) of Social Media on Quarantine People Related to COVID 19

Need of Study: The quarantine would impact day-to-day employees and companies with daily profits. Confining abnormally reduced social and physical contact with others whereas loss of habits is direct linked to distress, monotony, social isolation and disappointment. Hence the investigator plans to assess the effect of social media on the mental health of quarantined people related to covid-19. Objectives: To assess the psychological impact (stress and anxiety level) on quarantine people. Methodology: The study was based on an evaluative approach. The population was about all adults, above 18 – 60 years of age who were quarantined. The sampling technique used in the study was probability convenient sampling and the tool was PSS scale and GAD-7 checklist. The data gathering process began based on the objectives and the hypothesis the data were statistically analyzed with various tests such as descriptive statistics and inferential statistics. Results: The majority 60% of the subjects had moderate levels of stress regarding social media on quarantine people due to covid-19 and 91% of subjects had mild anxiety regarding social media. Conclusion: Research study concludes that clients of the community were suffered from stress and anxiety during the covid pandemic as per their occupation and lack of knowledge regarding stress and anxiety management brought resulted in increasing disturbance in performing a daily activity with an increase in the death rate due to overuse of social media.

Research on Impact Stress Transfer Characteristics of Lunar Rock Coring Drill

In the whole lunar surface drilling and sampling task, it is critical to make the operation of the drilling and sampling impact system efficient and reliable. This paper focuses on how to improve the impact stress obtained at the cutting edge of the drill bit. Firstly, with the objective of maximizing the output impact energy, the design parameters of the percussive mechanism are optimally selected; based on the one-dimensional stress wave transfer theory, the collision input model and transfer models of impact stress in the drilling tool are established. Secondly, in order to verify the above design parameters and theoretical models, the percussive drive characteristics’ test and the transfer characteristics’ tests of impact stress in the drill stem and drilling tool joints are carried out in turn. The experimental results are consistent with the theoretical analysis, which clarifies the transfer characteristics of the impact stress at the various stages of generation, incidence, and transfer to the cutting edge. It was finally found that increasing the percussive frequency and impact energy of the percussive mechanism as well as the contact stiffness of the collision surface can increase the incident impact stress of the drilling tool, while reducing the length of the screw connection between the drill bit and the drill stem can reduce the impact stress loss. This provides a theoretical reference for the design of the percussive mechanism and drilling tools in lunar surface drilling and sampling tasks.

Study on the drop impact characteristics and impact damage mechanism of sweet potato tubers during harvest

Collision of falling in the mechanical harvesting process of sweet potato is one of the main causes of epidermal destruction and damage to sweet potato tubers. Therefore, a sweet potato mechanical characteristic test and a full-factor sweet potato drop test were designed. Based on the analysis of the fitting mathematical model, the impact of the drop height, collision material and sweet potato chunk size on the damage of the sweet potato were studied. The mathematical models were established by fitting analysis of the IBM SPSS Statistics 22 software between the drop height and the sweet potato chunk size with each test index (impact force, impact stress, broken skin area and damaged area). The critical epidermal destruction height and the critical damage height of a certain size of sweet potato when it collides with a collision material can be calculated by the mathematical model, and the critical epidermal destruction mass and critical damage mass of sweet potato when it falls from a certain height and collides with a collision material can also be calculated. Then a series of critical values (including critical epidermal destruction force value, critical epidermal destruction impact stress, critical damage force value, critical damage impact stress) of mechanical properties of sweet potato were obtained. The results show that the impact deformation of sweet potato includes both elastic and plastic ones, and has similar stress relaxation characteristics. The critical damage impact stress of sweet potato is that the average value of the impact stress on the contact surface is less than it’s Firmness. The results provided a theoretical basis for understanding the collision damage mechanism of sweet potato and how to reduce the damage during harvest.

A Review of Microsystem Factors Related to Stress in Undergraduate Students Studying Communication Sciences and Disorders

Purpose The purpose of this review article is to review the existing literature about the factors that impact stress in undergraduate students studying communication sciences and disorders (CSD). Current undergraduate students are more stressed than their predecessors and the body of literature about stressed students is growing. However, CSD students' experience may differ from their non-CSD peers and there is a dearth of literature about stressed CSD students, in particular. Method This is a narrative review of the literature about the factors that impact stress in undergraduate students studying CSD. The review is structured using the ecological systems theoretical framework with an emphasis on the microsystems that encompass the most salient factors related to undergraduate students' stress. Factors such as family influence (e.g., parenting style, parent education), peer support, faculty relationships, minority status, technology, and individual health behaviors were explored in the literature using electronic databases. Conclusions This review of the literature suggests that a myriad of microsystem factors contribute to the stress of undergraduate CSD students. Although the review focuses on microsystem factors that are closest to students, it is important to situate the results in context. The mental health of college students was on the decline before COVID-19, and as the economic and public health of the nation and world shift, the urgency to attend to our students increases. This review contributes to the greater understanding of CSD students' experiences that will inform programmatic and individual support.

When lexical statistics and the grammar conflict: learning and repairing weight effects on stress

In weight-sensitive languages, stress is influenced by syllable weight. As a result, heavy syllables should attract, not repel, stress. The Portuguese lexicon, however, presents a case where weight seems to negatively impact stress: antepenultimate stress is more frequent in light antepenultimate syllables than in heavy ones. This pattern is phonologically unexpected, and appears to contradict the typology of weight and stress: it is a case where lexical statistics and the grammar conflict. Portuguese also contains gradient, not categorical, weight effects, which weaken as we move away from the right edge of the word. In this paper, I examine how native speakers’ grammars capture these subtle weight effects, and whether the negative antepenultimate weight effect is learned or repaired. I show that speakers learn the gradient weight effects in the language, but do not learn the unnatural negative effect. Instead, speakers repair this pattern, and generalize a positive weight effect to all syllables in the stress domain. This study thus provides empirical evidence that speakers may not only ignore unnatural patterns, but also learn the opposite pattern.