A Case History of Secondary 3D Seismic Exploration in the Liaohe Basin: An Example from the Rongshengpu–Qianjin Area

The working area is located in the industrially developed region of Rongshengpu-Qianjin, where a surface water system is developed, surface-layer lithology is complicated, and various kinds of hydrocarbon traps are buried at depth. The seismic data acquired previously couldn＇t be interpreted due to the complex surface and geological conditions. Taking secondary 3D seismic from the Rongshengpu-Qianjin area as an example, this paper describes a set of techniques designed to overcome these difficulties and improve the quality of seismic data. The applied techniques included flexible acquisition geometry, low-noise receiver conditions, quantitative quality control, and so on.

THE METHODOLOGICAL EXPLORATION OF THE ENGLISH TEACHING IN SECONDARY SCHOOL

The English Teaching Guideline for the nine-year compulsory education of full-time Sec-ondary school points out that:"the aim of English teaching for secondary school students is to letstudents master the basic knowledge of English language and the prelimanary ability to use Englishby the rutine practice of listening,speaking,reading and writing.To encourage students for deepinterest in the English study,and adaPt themselves to a good habit for further study,and developthe imagination and self-teaching ability."In order to meet the requirement,we must better sev-eral aspects as what should be taught,the timing arrangement,the teaching sequence arrange-ment,the improvement of teaching method in class.Among which,the reforming of teachingmethod is the key step.

Screening for hypertension-mediated organ damage and aetiology:still of value after 65 years of age?

BACKGROUND Secondary forms and hypertension-mediated organ damage(HMOD) may differ between younger and older hypertensive patients.The aim of the present study was to explore the specificity of HMOD and secondary forms in patients≥ 65 years in comparison to younger ones in a contemporary cohort.METHODS We analysed 938 patients recruited between 2004 and 2014(Cardiology department,Croix-Rousse Hospital,Lyon)who had at baseline HMOD and secondary forms screening among them 190 were≥ 65 years.RESULTS The mean(2.1±0.8 vs.1.2±0.9,P <0.001) and frequency of HMOD(96.3% vs.72.9%,P <0.001) was higher in patients≥ 65 years than younger ones.Carotid femoral pulse wave velocity> 10 m/s was the most frequent HMOD in patients≥ 65 years(90.1%),while echocardiographic left ventricular hypertrophy was the most common in the younger patients(45.0%).Among ECG left ventricular indexes,only R wave in aVL lead was significantly more frequently observed in patients≥ 65 years(32.6%) than in younger ones(19.0%,P <0.001).The frequency of secondary hypertension was not significantly different between younger and older patients(respectively;30.5% vs.27.8%,P=0.487).The most frequent aetiology was primary aldosteronism regardless of age,followed by renovascular hypertension(6.3% vs.3.3%,P=0.038).Among older patients,3.2% were treated with adrenalectomy and 6.3% with percutaneous transluminal renal angioplasty.CONCLUSION Extensive screening of HMOD in older patients may be questionable as nearly all patients had one;aetiology must however be explored as a third of older patients had a secondary form.