This article analyses and summarizes the clinical maintenance work of Elekta Precise Linac in five years.Afer the further research on its performances and errors,a better way is found to solve the main problem of clinical electronic linac,i.e.the way to reduce the Stop Rate of Linac in Radiotherapy.

The risk factors of traffic crash include drinking/drunk drive, accident proneness, fatigue driving, speeding, and poor vehicle quality. This article introduces the protection, emergency treatment, and basic scientific research of road traffic injury (RTI). As a public health issue, RTI is preventable, and personal factor is a key problem. It is important to establish an accurate and comprehensive RTI database, which may provide necessary information for the epidemiological research and crash prevention. The author also gives some suggestions on road traffic safety development in our country.
Accidents, Traffic ; prevention & control ; Databases, Factual ; Epidemiologic Research Design ; Humans ; Wounds and Injuries ; prevention & control ; therapy

Accidents, Traffic ; prevention & control ; Global Health ; Humans ; World Health Organization

Carcinoma, Hepatocellular ; surgery ; Hepatectomy ; Humans ; Liver Neoplasms ; surgery

Most authors agree that arachnoid cyst accounts for about 1 % of all intracranial space-occupying lesions, but this lesion is more frequently found now-a-days as the application of cranial CT becomes more common, your cases of intracranial arachnoid cyst were reported with discussions on its etiolgy, pathogenesis, symptomatology, diagnosis, and treatment.In children, the presenting symptom is hydrocephalic manifestations; while in adults, it is headache with various focal symptoms depending on the locations of the cyst. There are certain indications for surgical therapy but direct excision is the treatment of choice in most cases. Surgical mortality should be seriously considered and not be neglected. No death occurred in our four cases.

An innovative approach,named associating liver partition and portal vein ligation for staged hepatectomy (ALPPS),has made possible a marked increase in future liver remnant (FLR) over a short period of time,and has challenged the concept of unresectability.To date,ALPPS has been employed for a variety of primary and metastatic liver tumors from many centers across the world.Many technical variations of ALPPS have been described.However,much controversy has surrounded this procedure,and many problems remain to be solved,such as the reasons for rapid hypertrophy,the technical feasibility,safety and long-term oncologic outcomes,and the result compared with the conventional two-stage hepatectomy.These aspects are needed to be evaluated further in large-scale studies.We believe that the ALPPS procedure will has much room for further development.

Objective]To summarize the principle of usage of Chenqi Decoction Family, and compare with the similarities and differences of those in ShangHan Lun. [Method]To classify and analyse the scriptures related to Chenqi Decoction Family, and make a comparison with those in Chapter of Yangming Disease in ShangHan Lun. [Result]Besides the method of purgation and urgent purgation to preserve Yin, Wu Jutong inhertied and developed the purgation method of Zhang Zhongjing’s ShangHan Lun, such as Fluid-increasing Decoction, The New Yellow Dragon Decotion, The Lung-ventilating Chenqi Decotion, The Heart-fire Conduction Chenqi Decotion, The Calculi bovis Chenqi Decotion and The Fluid-increasing Chenqi Decotion, which enriched the syndrome differentiation system of ferbile disease. A deeper comparison of WenBingTiaoBian and ShangHanLun is worth researching.

β-catenin is an important signaling transduetion and adhesion molecules.Mutation of the betacatenin gene,CTNNB1,is a common case in pediatric tumors,which may induce development and metastasis.In hepatoblastoma,48%have CTNNB1 mutation.In Wilms tumor,mutation only occurs in cases with WT1 gene mutation.In neuroblastoma,mutation is also found.

OBJECTIVE To investigate the pathogens distribution and their antibiotic resistance in critically ill patients with pulmonary infection.METHODS Totally 171 isolates from sputa were studied and the drug sensitive test was analyzed in 103 critically ill patients.RESULTS These results showed that 29 G+ bacteria strains occupied 17.0%,there were 15 Staphylococcus aureus strains,11 S.epidermidis strains and 3 Enterococcus strains,respectively.In 107 G-bacteria strains occupied 62.6% were composed Stenotrophomonas maltophilia,Acinetobacter baumannii,Burkholderia cepacia and Klebsiella pneumoniae,and 35 strains were fungi,accounted for 20.5%,the main fungi were Candida albicans and C.tropicalis.The result of drug sensitive test showed that there were high rates of multiple drug resistance in most bacteria strains,but there were different drug resistance rates to different antibiotics.CONCLUSIONS G-bacilli play an important role in the pulmonary infections of these critically ill patients,the opportunistic pathogens,such as S.maltophilia are the main G-pathogens,and there are high percentages of drug resistance.The other bacteria such as S.aureus,K.pneumoniae,etc,have a multidrug resistance.Inspecting pathogens and studying the trend of their drug resistance are very important in reducing drug abuse and decreasing the rate of infection in hospital.

OBJECTIVE To consummate the measures of prevention and control of HIV in order to effectively guard medical personnel against being infected with HIV during occupational exposure.METHODS Make a survey of the constitution of 35 medical personnel in our hospital who had directly contacted and exposed to HIV sufferers,and the main approaches of their exposure and treatment taken after exposure.RESULTS The rate of occupational exposure has reached as high as 77.78%,mainly through the skin exposure due to skinhurt.Medical personnel usually didn′t attach much attention to the potential danger of exposure,and had low capability of occupational protection.CONCLUSIONS The education of occupational safety must be strengthened,and the measures of occupation be consummate protection in order to decrease the occupational exposure of medical personnel.