Effect of Qingfei Quyu Decoction in Prevention of Radiation Pneumonitis Induced by Concurrent Chemoradiotherapy for Esophageal Carcinoma Patients
Chinese Journal of Integrated Traditional and Western Medicine,Vol 36,No. 03
Objective To observe and assess the effect of Qingfei Quyu Decoction (QQD) on preventing radiation pneumonitis in esophageal carcinoma patients treated with concurrent chemoradiotherapy. Methods A total of 120 patients with mid-late stage esophageal carcinoma were randomly assigned to the treatment group (60 cases) and the control group (60 cases). All patients received concurrent radiochemotherapy. Patients in the treatment group additionally took QQD, one dose per day for 8 successive weeks. The incidence of radiation pneumonitis was compared between the two groups. The improvement rates of short-term benefit rate, Karnofsky performance scale (KPS), and body weight (BW) were calculated between the two groups. The 1-and 2-year overall survival rates were also compared between the two groups. Results The incidence rate of radiation pneunonitis was 8.93% (15/56) in the treatment group and 18.64% (11/59) in the control group ( P < 0.05). The short-term benefit rate was 92.86% (52/56) in the treatment group and 69.49% (41/59) in the control group P < 0. 05). Besides, the KPS and BW improvement rate were higher in the treatment group [89.29% (50/56) and 83.05% (49/59) ] than those in the control group [80.36%(45/56) and 66.10% (39/59) ] ( P < 0. 05). The 1-and 2-year overall survival rates were 66.07% and 35.71% respectively in the treatment group, which were higher than those in the control group ( 61.02% and 30.51%; P > 0.05). Conclusion For patients with esophageal carcinoma treated by concurrent chemoradiotherapy, using QQD could lower the incidence of radiation pneumonitis, attenuate the degree of radiation induced lung injury as well as improve clinical benefit rate and enhance their quality of life.
Chinese Journal of Plant Ecology,Vol 40,No. 07
Aims Under the context of global climate change, scientific management is the main way to enhance carbon sequestration of plantation forests. A reasonable rotation is one of the intensive management strategies, adjusting forest structure. The decline of productivity after continuous multigenerational cultivation is strongly related to its rotation. Therefore, it is necessary to study the effects of different rotations on carbon sequestration of Chinese fir ( Cunninghamia lanceolata) plantations, which can provide a theoretical basis for their sustainable management. Methods We set up sampling fields of Chinese fir plantations with different age sequences, and used the observation data to test the FORECAST model. We then simulated the effects of different rotations on Chinese fir plantations sequestration using FORECAST model. Important findings The results showed that over a 150-year period, total carbon sequestration was highest under short rotation length (15-year). However the carbon persistence was poorest and the decline of carbon between each rotation was biggest, indicating an unsustainable management model. Compared with short rotation, the total carbon sequestration under normal rotation (25-year) and long rotation (50-year) was lower. However, the carbon persistence under long rotation was strongest, which was beneficial to maintaining carbon stability during each rotation. Under good site conditions (site index ( SI) = 27), the shorter the rotation was, the more severely the soil fertility was consumed. In order to have persistent carbon sequestration rates in Chinese fir plantations, we suggest that rotation should be longer than 25 years. Application of FORECAST model can help quantitatively assess carbon sequestration capacity of forest plantations, which varies under different management strategies.
Chinese Acupuncture & Moxibustion,Vol 35,No. 10
By analyzing and summarizing the previous research results regarding acupuncture for insomnia,factors influencing the efficacy of acupuncture on insomnia were discussed,and a summary was made from aspects of age,gender,duration of insomnia,use of medication,types of syndrome differentiation,acupoint selection,acupoint combination,acupuncture timing,etc.With respect to the influencing factors,precautions during the clinical syndrome differentiation were briefly reviewed,and the treatment plan of acupuncture for insomnia was optimized,which could provide new methods and thoughts for clinical and scientific research regarding acupuncture for insomnia.
World Economics and Politics,No. 11
In a specific cultural and institutional environment which is influenced by specific policies, if a country can achieve the efficient allocation of resources, namely, the country can take its endowment of comparative advantages in production, and at the same time, can effectively constitute a deterrence and prevention to those unsafe factors in domestic and abroad, then it can get a sustained economic growth and a continuous rise. Based on available theories, this paper first raises the benchmark of the rise and fall of nations. According to three constraint conditions, this paper suggests that the mechanism of the Rise Failure of Great Powers can be explained in five courses, namely strategic misleading → decision of the susceptible countries → unisallocation of resources → internal and external troubles → the rise failure of great powers. To reflect the powers of nations, this paper chooses its proportion of the world GDP. This paper focuses on three typical countries, which is Germany, Russia and Japan. Through the analyses on the environmental and systematic susceptibility conditions, this paper finds out the generality of strategic misleading in these countries. The centralization of decision and social political mobilization generally leads to strategic misleading. Effective trial and error mechanism, opening economic system, good international relations and neutral authority of government could mitigate the impact from the strategic misleading.
Journal of Aeronautical Materials,Vol 36,No. 03
Titanium fire is the typical catastrophic fault in the aero-engine. Aiming at the urgent demand for experimental technique of titanium fire from advanced high thrust-weight ratio aero-engine, the combustion technology and theory of titanium alloy based on friction oxygen concentration method (FOC) were systematically studied. The evaluation method of fireproof property and the friction ignition model were built, and the fireproof mechanism was illustrated. By generalizing recent progress in experimental technique of titanium fire from three levels, including evolutionary rule, mechanism and prevention and control technology, the ideas and directions of experimental technique associated with the application research of titanium fire in the future were proposed, namely, overall evaluation of fireproof property close to air flow environment of the aero-engine, prediction model of fireproof property and experimental verification of fireproof technique under the air flow environment of aero-engine. It is necessary to establish the prevention system of titanium fire in aero-engine, which contributes to the realization of "full titanium" in compressor and to the increase of high thrust-weight ratio.