Introduction: Osteoporosis, a common skeletal disorder mainly affecting postmenopausal women, is characterized by the imbalance between osteogenesis and osteoclastogenesis. Circ_0134944 has been recently found to be upregulated in postmenopausal osteoporosis (PMOP) patients. However, its role in osteogenesis remains unknown.
View Article and Find Full Text PDFBulk gasoline terminals are an important emission source of volatile organic compounds (VOCs) in cities. Beijing started to promote the installation of oil and gas recovery devices at oil storage terminals in 2006 to reduce VOCs emissions, since then VOCs emissions from the terminals have been monitored by the municipal government every year. This paper analyzes the VOCs emission characteristics of oil storage terminals in Beijing from 2012 to 2019.
View Article and Find Full Text PDFIn urban solid waste management, the scientific and reasonable disposal and utilization of sewage sludge is becoming more and more important. It can be said that the pollution status and chemical properties of sewage sludge in urban sewage treatment plants can provide a basis for the scientific disposal and utilization of sludge. In this study, the characteristics of pH, moisture content, Cd, Cr, Cu, Zn, Pb, As, Hg, Ni, mineral oil, volatile phenol, PAHs, organic matter, nitrogen, phosphorus, and potassium were evaluated in sewage sludge collected from 49 sewage treatment plants in a certain city.
View Article and Find Full Text PDFTo understand the contents of various phosphorus forms, phosphorus solubilizing bacte-rial community structure and the relationship between them in soils after restoration from the seriously burning, we collected soil samples from artificial restoration (Pinus sylvestris var. mongolica plantation, Larix gmelinii plantation), artificial accelerated natural restoration (secondary forest) and natural restoration (natural secondary forest) stands in Greater Khingan Mountain area. Using methods of Sui et al.
View Article and Find Full Text PDFObjective: To compare the effect of electroacupuncture (EA) of "Neiguan" (PC6) of the Pericardium Meridian, "Shenmen" (HT7) of the Heart Meridian,"Shuigou" (GV26) of the Governor Vessel and "Zhaohai" (KI6) of the Kidney Meridian on myocardial and cerebral cell apoptosis in cerebral ischemia (CI) rats, so as to explore its mechanism underlying improvement of CI based on the theory of "Heart-brain Correlation".
Methods: Forty-eight SD rats (half male and half female) were randomly divided into normal control, model, PC6, HT7, GV26 and KI6 groups (=8 in each one). The CI model was established by occlusion of the middle cerebral artery (MCAO).
Objective: To observe the changes of brain rest-state functional connectivity following electroacupuncture (EA) stimulation of right Xia-Jiquan (HT 1), Shaohai (HT 3), Lingdao (HT 4) and Shenmen (HT 7) of the Heart Meridian and non-acupoints in healthy volunteers so as to provide an imaging basis for clinical treatment of some related disorders.
Methods: A total of 20 healthy volunteers who met the inclusion criteria were randomly divided into HT-acupoint group (=10 cases) and non-acupoint group (=10 cases) according to the visiting sequence. EA (2 Hz, 2-5 mA) was applied to the right HT 1-HT 3, and HT 4-HT 7 (two outputs of the EA stimulator being connected to two acupuncture needle handles) and non-acupoints (4 spots on the imaginary mid-line between the HT and the Pericardium Meridian apart from the 4 acupoints HT 1-HT 3, and HT 4-HT 7) for 6 min.
Zhongguo Zhong Xi Yi Jie He Za Zhi
February 2017
The integration of Chinese medicine (CM) and Western medicine (WM) has obvious advantages. However, basic theories of CM and WM are hard to integrate at the present stage due to radical difference in world view and methodology between them. CM and WM share the same objective, i.
View Article and Find Full Text PDFNH is one of the main odors produced from landfill sites. It is also an important precursor of PM. According to the NH of ambient air and non-organizational waste gas monitoring method, the research studied NH emission characteristics of two landfill sites in Beijing.
View Article and Find Full Text PDFSpatial and temporal distribution of SO2 during 2000-2014 was all analyzed based on the SO2 monitoring data that Beijing Municipal Environmental Monitoring Center released and the formation mechanism of a typical air pollution episode in January 2014 was also investigated by combining numerical model CAM(x). Analysis results showed that mass concentration of ρ(SO2) in Beijing in 2014 decreased 69% compared to that in 2000 with an annual gradient from 2000 to 2014 of - 3.5 μg x (m3 x a)(-1).
View Article and Find Full Text PDFTailpipe emission of internal combustion engine vehicle (ICEV) is one of the main sources leading to atmospheric environmental problems such as haze. Substituting electric vehicles for conventional gasoline vehicles is an important solution for reducing urban air pollution. In 2011, as a pilot city of electric vehicle, Beijing launched a promotion plan of electric vehicle.
View Article and Find Full Text PDFBackground: In the absence of acute clinical manifestation, the diagnosis of cytomegalovirus (CMV) infection is usually done by serology, which has been an important tool in the clinical medicine.
Methods: Many commercial CMV IgG avidity kits are available for identification. We decided to evaluate the Autobio Diagnostics Co.
The recognition of targets such as biomacromolecules, viruses and cells by their aptamers is crucial in aptamer-based biosensor platforms and research into protein function. However, it is difficult to evaluate the binding constant of aptamers and their targets that are hard to purify and quantify, especially when the targets are undefined. Therefore, we aimed to develop a modified capillary electrophoresis based method to determine the dissociation constant of aptamers whose targets are hard to quantify.
View Article and Find Full Text PDFObjective: To observe the impacts on repeated common cold for the adults with different constitutions treated by acupoint application in the dog days (the three periods of the hottest days) and the three nine-day periods after the winter solstice (the three periods of the coldest days).
Methods: One hundred and fifty-two cases of repeated common cold were divided into four zones according to the body constitution. Each zone was sub-divided into a group of the dog days + the three nine-day periods of the coldest days (group A), and a simple group of the dog periods (group B).
Objective: To systematically observe the clinical effect on chronic obstructive pulmonary disease (COPD) at the stable stage, differentiated as cold phlegm blocking the lung type, treated with acupoint sticking therapy during the dog days and the three nine-day periods after the winter solstice so as to propose the latest clinical idea and theoretic evidence for the treatment of COPD.
Methods: One hundred and fifty cases of COPD at stable stage, which were in accordance with the inclusive standard were randomly divided into three groups, named group A (treatment in dog days and the three nine-day periods after the winter solstice), group B (treatment in dog days) and group C (treatment in the three nine-day periods after the winter solstice), 50 cases in each group. The ingredients (Semen Brassicae, Euphoribia Kansui, Asarum, Rhizome Corydalis, Cinnamon, ginger juice) and doses of herbal medicine plaster were same in each group.
Huan Jing Ke Xue
February 2011
Observational data in clean area provides important references for evaluating environmental impact both from natural and anthropogenic sources. Atmospheric particulate matter of different size were closely examined using dustfall data during 1980-2009, TSP data during 1991-2009 and PM10 data since 2000 at Dingling station (DL), which was located in the clean area of Beijing. It was shown that dustfall amount at DL was on decrease in the last 30 years, by reasons of anthropogenic emission control and ecological environment improvement; meanwhile there was a 5-6 years' cycle of variation in yearly dustfall amount partly caused by dust storms.
View Article and Find Full Text PDFObjective: To search for a therapy for edema of the affected limb in patients of hemiplegia after stroke.
Methods: Eighty patients were randomly divided into a treatment group and a control group, 40 cases in each group. The treatment group were treated by blood-letting puncture at 12 Jing-well points of the hand combined with fuming and washing with herbal lotion, and the control group were treated by oral administration of diuretic.
A fully automated and portable analyzer for field speciation of inorganic chromium in wastewater was developed. The instrument consists of a micro-sequential injection lab-on-valve (LOV) system and a miniature USB2000 spectrophotometer. A multi-purpose flow cell was incorporated on one side of the main body of the LOV, which offers vast potentials and versatilities in its compatibility with various detection modes.
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