浅析查防违约用电、窃电的措施

目前，各种违约、窃电的方式各种各样，技术手段也不断进步，这个给反窃电带来更多的技术困扰与管理因素，因此，查防违约用电、窃电成为供电系统一个重要的课题。本文将当前窃电行为的特点进行分析，并从多角度探讨查防违约用电、窃电的综合措施。

查防违约用电、窃电的措施

随着现代社会的不断发展,人们的日常生产、生活对电的需求也越来越大,这为相关的电力工作提出了较高的要求。违约用电的查防、反窃电工作的开展,都是整个电力管理工作中较为重要的环节之一,对整个电网的安全运行有较为重大的意义。

Screening for nasopharyngeal carcinoma in high-incidence regions——Next steps

Epstein-Barr virus(EBV)infection is a well-established risk factor in the development of nonkeratinizing and undifferentiated forms of nasopharyngeal carcinoma(NPC)common in parts of China and Southeast Asia.Early detection of NPC can significantly improve survival rates,as the 5-year survival rate for patients diagnosed at an early stage can exceed 90%after treatment.Studies have demonstrated that screening for NPC using EBV markers is an effective tool for identifying individuals with the disease.Future efforts should focus on implementing screening programs in high-incidence populations,assessing and refining screening algorithms,and exploring new,potentially more cost-effective screening methods.It is crucial to ensure that any new approaches are validated as superior or non-inferior to existing protocol before being adopted on a wider scale.The success of these screening tools in reducing NPC-related morbidity and mortality will depend on their effective implementation and ensuring access for the populations most in need of preventive interventions.This opinion piece briefly summarizes the current evidence supporting EBV-based screening for NPC detection and discusses future steps,including:1)the implementation of effective NPC screening programs,2)the evaluation of improvements in screening methodologies,and 3)the consideration of novel approaches to screening.

Morphology and motor function of the gastrointestinal tract examined with endosonography

Endosonography is a useful tool for studying the morphology and motor function of the gastrointestinal tract. Intraluminal ultrasonography is the common denomination of ultrasound examinations using intracorporal transducers which are inserted into the GI tract. Thus, the visceral wall and adjacent structures can be imaged in detail. This review describes the usefulness of endosonography in gastroenterology, in particular with respect to studies of the biomechanical and motor function of the gastrointestinal tract. New techniques such as 3-D EUS, elastography and strain rate imaging are discussed.

Knowledge, attitude and practice related to liver fluke infection in northeast Thailand

AIM： To investigate the knowledge, attitude and practice （KAP） in prevention and control of liver fluke infection in northeast Thailand. METHODS： A descriptive KAP survey pertaining to liver fluke infection was carried out in June 2005 to October 2006 using structured questionnaires. Data were collected by questionnaires consisting of general parameters, knowledge, attitude, practice, and a history of participation in the prevention and control of liver fluke infection. RESULTS： A total of 1077 persons who were interviewed and completed the questionnaires were enrolled in the study. The majority were females （69.5%） and many of them were 15-20 years of age （37.26%）. The questionnaires revealed that information resources on liver fluke infection included local public health volunteers （31.37%）, public health officers （18.72%）, televisions （14.38%）, local heads of sub-districts （12.31%）, doctors and nurses （9.18%）, newspaper （5.72）, intemets （5.37%）, and others （12.95%）. Fiftyfive point eleven percent of the population had a good level of liver fluke knowledge concerning the mode of disease transmission and 79.72% of the population had a good level of prevention and control knowledge with regards to defecation and consumption. The attitude and practice in liver fluke prevention and control were also at a good level with a positive awareness, participation, and satisfaction of 72.1% and 60.83% of the persons studied. However, good health behavior was found in 39.26% and 41.42% of the persons studied who had unhygienic defecation and ate raw cyprinoid＇s fish. The result also showed that 41.25% of the persons studied previously joined prevention and control campaigns. CONCLUSION： The persons studied have a high level of liver fluke knowledge and positive attitude. However, improvement is required regarding personal hygiene specifically with hygienic defecation and consumption of undercooked fish.

Prophylactic effect of glyceryl trinitrate on post-endoscopic retrograde cholangiopancreatography pancreatitis:A randomized placebo-controlled trial

AIM:To examine the prophylactic effect of glyceryl trinitrate on post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis and hyperamylasemia.METHODS:Patients scheduled for ERCP were randomly divided into study group and placebo group.Patients in study group and placebo group were treated with 5 mg glyceryl trinitrate and 100 mg vitamin C,respectively,5 min before endoscopic maneuvers.RESULTS:A total of 74 patients were enrolled in the final analysis.Post-ERCP pancreatitis occurred in 3 patients(7.9%) of the study group and 9 patients(25%) in the placebo group(P = 0.012).Hyperamylasemia occurred in 8 patients of the study group(21.1%) and 13 patients(36.1%) of the placebo group(P = 0.037).CONCLUSION:Glyceryl trinitrate before ERCP can effectively prevent post-ERCP and hyperamylasemia.

Climate Characteristics of Thunder and Lightning in Anyang City

The research explored frequencies of different weathers caused by con-vection, characters of thunder and lightning, spatial and temporal changes, move-ment routes, geographical distribution, daily, monthly and annual changes of thunder or lightning, based on 30 years information. Furthermore, a search system of thun-derstorm in history was established, laying foundation for prevention and prepared-ness of thunderstorm in Anyang.

Stomach cancer screening and preventive behaviors in relatives of gastric cancer patients

AIM:To investigate gastric cancer screening and preventive behaviors among the relatives of patients with gastric cancer[i.e.,gastric cancer relatives(GCRs)].METHODS:We examined the Korean National Health and Nutrition Examination Survey 2005(KNHANESⅢ) database and compared the gastric cancer screening and preventive behaviors of GCRs(n=261)with those of non-GCRs(n=454)and controls without a family history of cancer(n=2842).RESULTS:The GCRs were more likely to undergo gastric cancer screening compared with the control group(39.2%vs 32.3%,adjusted odds ratio:1.43,CI:1.05-1.95),although the absolute screening rate was low.Dietary patterns and smoking rates did not differ significantly between the groups,and a high proportion of GCRs reported inappropriate dietary habits(i.e.,approximately 95%consumed excessive sodium,30% were deficient in vitamin C,and 85%were deficient in dietary fiber).CONCLUSION:The gastric cancer screening and preventive behaviors of GCRs have yet to be improved.To increase awareness among GCRs,systematic family education programs should be implemented.

Value of colonoscopy for prediction of prognosis in patients with ulcerative colitis

Ulcerative colitis (UC) is a chronic inflammatory bowel disorder characterized by exacerbations and remissions. Some UC patients remain refractory to conventional medical treatment while, in others, the effectiveness of drugs is limited by side-effects. Recently, cyclosporine and leukocyte removal therapy have been used for refractory UC patients. To predict the efficacy of these therapies is important for appropriate selection of treatment options and for preparation for colectomy. Endoscopy is the cornerstone for diagnosis and evaluation of UC. Endoscopic parameters in patients with severe or refractory UC may predict a clinical response to therapies, such as cyclosporine or leukocyte removal therapy. As for the patients with quiescent UC, relapse of UC is difficult to predict by routine colonoscopy. Even when routine colonoscopy suggests remission and a normal mucosal appearance, microscopic abnormalities may persist and relapse may occur later. To more accurately identify disease activity and to predict exacerbations in UC patients with clinically inactive disease is important for deciding whether medical treatment should be maintained. Magnifying colonoscopy is useful for the evaluation of disease activity and for predicting relapse in patients with UC.

Knowledge of COVID-19 and its prevention among rural residents in Fuqing,China

Objectives:Rural areas are the weakest place for epidemic prevention and control,yet few studies have specifically conducted surveys in rural areas.The purpose of this study is to assess rural residents’knowledge of the COVID-19 and its prevention in China.Methods:A cross-sectional survey study containing 1,426 samples was conducted in Fuqing,China to assess rural residents’knowledge of the COVID-19 and its prevention.Logistic regression was used to identify potential differences in participants’knowledge of COVID-19 and its prevention and control in different population subgroups.Results:The mean and median of residents’knowledge of COVID-19 was 5.53 and 6 points,respectively.The mean and median of residents’knowledge related to self-protection against COVID-19 was 10.34 and 11 points,respectively.Older adults(AOR45e59=2.26,95%CI 1.20 to 4.27;AOR60-69=3.13,95%CI 1.63 to 5.98;AOR70=4.68,95%CI 2.35 to 9.33)were more deficient in knowledge of COVID-19.Those who were better educated and with a higher average annual household income were less likely to be deficient in the knowledge of COVID-19 and knowledge of self-protection against COVID-19.Moreover,those who were single,divorced,or widowed(AOR=1.67,95%CI 1.13 to 2.46)were more deficient in the knowledge of self-protection against COVID-19.Conclusions:Our study suggests that when facing a pandemic like COVID-19,the key is to inform the public to understand simple and effective self-protection measures.Therefore,we call on the govern-ments to give priority to publicity and education on self-prevention measures for the targeted pop-ulations and regions.This is most evident among the vulnerable groups like those who were unmarried,elderly,and those with low education or low income.Similar suggestions may be of use in other countries as well.

Prevalence and Characteristics of Pregnant Syphilis among Women Attending Antenatal Clinics in Shenzhen (China) in 2003

Background: The Nnewly reported cases ofcongenital syphilis have been increaseding substantiallyover the past few years. To control the epidemic, a mu-nicipal program aimed at preventing mother-to-childtransmission of syphilis was introduced in July, 2001,which was designed aimed to screen all pregnant womenfor syphilis at their first visit to antenatal clinics or atadmission to hospitals in Shenzhen.Objectives: The aim of the study is tTo determine theprevalence of syphilis among women attending antenatalclinics and other medical institutions in Shenzhen andidentifies its patterns of infection. Methods: Upon giving informed consent, w Women whoattended antenatal care centers in Shenzhen from Janu-ary to December 2003 were included in this study subjectto obtaining informed consent. A blood sample was har-vested for syphilis screened for syphilising by using rapidplasma reagent test (RPR) and confirmed by TPHA forthose who were RPR positive. The women with pregnantsyphilispositive serology were systematically interviewedto obtain . During the interview, their demographicdetailsinformation,patterns of risk behaviors andother data. Data were collected andwere analyzedretrospectively.Results: Among Of 118,235 pregnant women surveyed,555 pregnant women were confirmed to have syphilis(prevalence of 4.69%), with a incidence of 4.69‰。 123women were excluded from the analysis because of in-complete medical records. Of 432 infected subjects withcomplete medical records, the average age was 26.8, witha range of 19 to 41. 7.41% (32/432) of them suffered fromprimary syphilis, 3.24% (14 /432) were ofhad secondary syphilis, and 89.35% (386/432) had latent syphilis. with-out any conspicuous clinical signs and symptoms.Conclusions: The prevalence of syphilis among the preg-nant women in our series was high and most of them wereasymptomatic. Screening for syphilis among pregnantwomen in Shenzhen is of importantce for the preventionof mother-to-child transmission of syphilis.

The current G-CSF use in cancer patients with chemotherapy

Objective: The purpose of the study was to survey current G-CSF use in cancer patients, investigate whether the use of granulocyte colony-stimulating factor(G-CSF) is standardized. Methods: From July 2012 to October 2012, patients in a third-grade class-A hospital were investigated by self-designed questionnaires, according to ASCO's recommendations for white blood cell growth factors in 2006 and NCCN myeloid growth factors guideline in 2012. Results: Two hundred and twenty-two patients treated with 724 courses of chemotherapy were included. In prophylactic use, 259(35.8%) cases used G-CSF that the guideline doesn't recommend, which belonged to excessive use, the dose were 274 700 μg, accounting for 59.7% of the totle prophylactic use; 105(14.5%) didn't use while the guideline recommend, belonging to lack of use. 89.0% of the prophylactic use were 24–72 h after chemotherapy, only a few(5.4%) on the day of chemotherapy. In therapeutic use, only 3.1% were standardized, with the dose of 23 000 μg, accounting for 7.4% of the total. So 92.6% were excessive. 14.2% of the therapeutic use were 24–72 h after chemotherapy, 21.2% on the day of chemotherapy. Conclusion: More than 50% use of G-CSF weren't standardized, especially the excessive use.

Evaluation of Reinforced Concrete Structures with Views for Rehabilitation

The increasing number of pathological occurrences is found in reinforced concrete structures, so does the demand for inspection and maintenance services in residential communities in the state of Pernambuco, which aim to detect damage to the structure in a timely manner to minimize repair costs, thus applying preventive maintenance in order to guarantee the estimated useful life of the project for the building. However, it is observed that the practice of periodic inspections is not yet part of the culture of a certain segment of the population that does not have economic means and knowledge of the importance of maintenance to ensure the integrity of the structure. It was used in this work an inspection script with use of tests and methodology to quantify damage and to check the state of degradation of two residential buildings with more than 20 years and built near the seafront where environmental aggression is strong. The deterioration found in each of the buildings has been differentiated due to different corrective maintenance performed at every building. The last maintenance, performed in Building A, was performed by corrective hand of unskilled labour guided by the community itself, which has no expertise in the field of civil engineering. In Building B, the situation is similar, compounded by the opinion of some tenants that there is no need for this routine, even the structure being in critical condition, as was confirmed with the application of the methodology employ. There should be a legislation that governs the execution of inspections and maintenance programs in addition to the existing technical standards. The methodologies presented suitable for checking the degree of degradation of the structures and performed tests confirmed the diagnosis obtained by visual inspection and quantification of damage.

Influence of education and working background on physicians' knowledge of secondary prevention guidelines for coronary heart disease: results from a survey in China

Background and objective： In clinical practice, the standard of secondary prevention for coronary heart disease （CHD） is quite disappointing in China. The physicians＇ shortage of knowledge of secondary prevention guidelines is thought to be a key factor contributing to the inadequate and delayed translation of guidelines into clinical practice. The purpose of this study is to investigate the influence of physicians＇ characteristics, including their educa- tion and work experience, on their knowledge of secondary prevention in China. Methods： A representative ques- tionnaire survey was made of physicians from cardiology departments in 35 tertiary hospitals in China. The survey contained 19 questions on knowledge of guideline recommendations for the secondary prevention of CHD. We col- lected basic information about the physicians, including their educational degree, clinical practice duration/work experience and geographic region. Results： In total, 864 physicians participated in the survey. Eight hundred and thirty-seven completed questionnaires were analyzed. For 6 of the 19 questions, physicians with a postgraduate degree were more likely to answer correctly than those without such a degree. For 11 of the 19 questions, physicians with more than three years＇ clinical experience were more likely to answer correctly than those who had less than three years＇ experience. For 5 of the 19 questions, physicians.from eastern areas were more likely to answer correctly than those from mid/western areas. The mean total score of correct answers to the questionnaire was 11.69 points. Edu- cational degree and clinical practice duration affected total scores significantly while practice location did not （β=0.500, P=0.004; ,β=0.979, P=0.000; and 8=0.228, P=0.162, respectively）. Even if a relatively low score of 12 is taken as a threshold level of acceptable knowledge （defined as a pass）, the pass rate of all physicians was only 53.9%. Educational degree and clinical practice duration affected pass rate significantly while practice location did not （95% CI： 1.222-2.248, P=0.001; 95% CI： 1.773-3.140, P=0.000; and 95% CI： 0.993-1.758, P=0.056, respectively）. Conclu- sions： Physicians with a clinical practice duration of more than three years knew more about secondary prevention guidelines than those with less experience. Physicians with a postgraduate degree knew more about secondary prevention guidelines than those without a postgraduate degree. However, overall knowledge of secondary prevention guidelines for CHD was poor among this group of physicians from tertiary hospitals.