Nine-Axis Sensor for Athlete Physical Training Load Characteristics

In order to understand the characteristic data of athletes’ training load, a method based on nine-axis sensor was proposed. Twenty-seven male college athletes were tested twice with a time interval of more than 48 hours. In part 1, participants take the 1 Repetition Maximum (1RM) test. The results show that maximum strength is one of the basic factors to develop the output power of athletes. In the process of skeletal muscle contraction, the curve of speed, force, and power is closely related. When the external load is 10%∼70%, the average power increases with the increase in the average force, it increases with the decrease in the average speed, and at 70%1RM, the average power reaches the peak and then decreases at an inflection point. It is proved that the accurate weight ratio of strength training is the basis of winning athletes, the focus of high level physical coach, and the premise of scientific sports training.

Association of Uric Acid With Blood Pressure in Hypertension Between Treatment Group and Non-treatment Group

Objective: This study aimed to explore the association between uric acid (UA) and blood pressure (BP) in hypertension treatment and non-treatment groups.Methods: A cross-sectional study with 6,985 individuals from the National Health and Nutrition Examination Survey (NHANES) was performed. Multiple linear regression analysis was performed to explore the relationship of UA and BP in hypertension between the treatment group (n = 5,983) and the non-treatment group (n = 1,002).Results: A significantly negative association was discovered in SBP (β, −0.36 [95% CI, −0.71, −0.01]) and DBP (β, −0.47 [95% CI, −0.69, −0.26]) in the hypertension treatment group. In the hypertension non-treatment group, the associations between UA and BP including SBP, DBP were both an inverted U-shape. The inflection point of SBP and DBP was 7 and 7.5 mg/dl, respectively. For SBP, the association was positively significant (β, 3.11 [95% CI, 1.67, 4.56]) before the inflection point of 7 mg/dl. However, after the inflection point of 7 mg/dl, the association was negative (β, −5.44 [95% CI, −8.6, −2.28]). For DBP, the inflection point was 7.5 mg/dl, and the effect size was positive (β, 1.19 [95% CI, 0.37, 2.01]) before the inflection point. However, after it, the effect size was negative (β, −3.24 [95% CI, −5.72, −0.76]).Conclusion: The association between UA and BP was negative in the hypertension treatment group. In the hypertension non-treatment group, the associations between UA and BP including SBP and DBP were both an inverted U-shape.

The Hobbesian Moment

This chapter reviews how once in power, populist leaders try to assert their political dominance, which is invariably contested by some societal and institutional actors, and shows how this moment of decisive political confrontation determines the ulterior trajectory of the populist government. If populist chief executives succeed during this moment, an aggrandized executive emerges and electoral democracy will transition to a hybrid regime; if they are defeated or constrained, the possibility of regime change is averted. The chapter identifies the permissive and productive conditions that explain the failure or success of populist leaders in emerging victorious from this inflection point. The key permissive condition is voters’ support for radical institutional change. The key productive condition is the ability of populist leaders to use the state’s repressive apparatus to impose their political will. An additional productive condition is sometimes present: the organization and mobilization of low-income voters to support the populist project.

The Tsunami Moment

This chapter chronicles the populist candidate’s rise to power, which follows a pattern resembling exponential growth: it starts slowly and grows steadily until it reaches an inflection point that marks an unstoppable moment. The term tsunami describes the first moment in the dynamic theory of populism in power, when insurgent populist candidates are able to tap into the existing mass dissatisfaction with political institutions and take advantage of growing elite disarray. As they become significant contenders, their momentum increases; seen as potential winners by others, they generate bandwagon effects and fascinate the media. These aspiring populist leaders expand their appeal through different ways. Some politicians associated with the old order bet on them and offer their support. Populist candidates expand the electorate by politically activating new actors or social forces, or by mobilizing previously apathetic voters.

Do China’s Urban–Environmental Quality and Economic Growth Conform to the Environmental Kuznets Curve?

The environmental Kuznets curve (EKC) expresses the relationship between environmental quality and economic growth. Based on the defects of previous studies on EKC using only environmental pollution indicators, this study holds that environmental quality is the result of pollutants after treatment, absorption, and self-purification, including two dimensions of pollution and absorption. Therefore, the environmental pollution and absorption data of 74 key environmental monitoring cities in China from 2005 to 2017 were selected, and a comprehensive index of environmental quality was constructed using the vertical and horizontal grading method. Then, based on the relevant economic growth indicators of these cities, they were divided into first-tier and new first-tier, second-tier, third-tier, and below. It was found that the EKC of the total sample, the first-tier and new first-tier cities, and the second-tier cities presented an inverted N-shape and had passed the second inflection point, where environmental quality continues to improve with the deepening of economic growth. There was no EKC in the third-tier and below cities. The findings have important implications. China can cross the second inflection point of the EKC and improve environmental quality at a low income level. Therefore, by vigorously developing cleaner production technologies and raising residents’ awareness of environmental protection, it is possible to improve environmental quality at a lower income level than expected, which provides a useful reference for other developing countries.

Questioning North Korea’s digraphic inflection point: Kim Il Sung’s 1964 and 1966 conversations with linguists reconsidered

Kim Il Sung’s 1964 and 1966 conversations with linguists are appropriately deemed important as the establishment of the North’s “cultured language” as a standard, as well as guidance related to language purification and script. In the analysis of inflection point related to language planning and policy in the North, is the often guidance on re-enshrinement of teaching “Chinese characters” (hanja) in North Korean education. Clearly this was official pronouncement of functional, synchronic digraphia, which has been preserved and operationalized down to the present. Scholarship on these conversations, amounting to policy guidance, attribute the shift in policy related to script as an inflection point. The author of this article concurs with its importance, but with respect to digraphia in the North, the conversations related to hanja instruction served as a confirmation for what was a broad trend in North Korean language planning during the years 1953-1964, a language planning and policy fait accompli, diminishing the portrayal of the conversations as a digraphic inflection point in North Korea.

Numerical Study on the Influence of Profile Shape on the Stability of a Nonhomogeneous Slope

To study the influence of profile shape on the stability of nonhomogeneous slopes, strip mechanical models of slopes with different profile shapes were established following the simplified Bishop method. Three hundred and seventy slope models with different profile shapes and strata sequences were simulated and analyzed with FLAC3D. The results show that slopes with weaker-to-stronger (WtS) strata sequences are, in most cases, more stable than slopes with stronger-to-weaker (StW) strata sequences when all other conditions are the same. Slopes with linear shapes are the most stable. With increasing arch height, the stability of convex slopes decreases, and the stability of concave slopes first increases slightly and then decreases. When the strata sequences are WtS, the factors of safety (FoSs) of slopes with convex and exterior polyline shapes decrease more slowly. However, when the strata sequences are StW, the FoSs of slopes with concave and interior polyline shapes decrease more slowly. The greatest X-displacements are concentrated in the steeper areas of the slopes. For different strata sequences, the higher the rock strength at the steeper position is, the more stable the slope is, and the opposite trend is also observed. For the same strata sequence, the stability of a polyline-shaped slope is always better than that of a curved slope with the same inflection point.

Releasing the Kraken

Ten years ago, the dramatic rise in the number of microbial genomes led to an inflection point, when the approach of finding short, exact matches in a comprehensive database became just as accurate as older, slower approaches. The new idea led to a method that was hundreds of times times faster than those that came before. Today, exact k-mer matching is a standard technique at the heart of many microbiome analysis tools.