The relationship between jaw deformity and scoliosis

Objectives To analyze the relationship between lateral displacement of the mandible and scoliosis. Methods From April 2002 through July 2003, we examined posteroanterior cephalometric radiographs and chest X-rays from 85 patients with jaw deformities and a control group of 20 patients with no jaw deformities. To measure the lateral shift of the mandible, we drew a horizontal baseline (X axis) on the cephalogram connecting the intersection of the external margins of the orbits and the most lateral points of the greater wings of the sphenoid. A vertical baseline (Y axis) was then marked perpendicular to the X axis, intersecting the ethmoid crista galli. Then, we measured the lateral displacement of the mandibular mentum from the Y axis. Displacement to the right was designated positive; that to the left was designated negative. Cobb's method was used to measure scoliosis curves on chest X-rays; the direction of the curve was designated similarly. Results Of the 85 patients with jaw deformity, 23 (27.1%) had a Cobb angle exceeding 10°. None of the control group had scoliosis exceeding 10°. No correlation was found between the direction of mandibular displacement and the direction of scoliosis. Conclusion This study suggests a relationship between jaw deformities and scoliosis, as scoliosis was found in 27.1% of the patients with a main complaint of jaw deformity.     

Rates of alcohol consumption and risk status among Australian university students vary by assessment questions

Introduction and Aims. Different self‐report methods tend to produce different estimates of alcohol consumption. The present study compares differences in rates and risk levels based on responses to a modified version of the Daily Drinking Questionnaire (m‐DDQ) and quantity‐frequency (QF) questions. Design and Methods. The sample comprised 2082 university students, 61% of whom were female and 39% male with a mean age of 23.5 years. An email containing an online link to a brief six‐question survey was emailed to students enrolled in participating faculties at the University of Wollongong, Australia. Current drinkers completed m‐DDQ and QF questions about alcohol consumption. Results. QF methods identified significantly lower estimates of consumption (Mean = 9.15, SD = 12.51) compared with m‐DDQ (Mean = 13.06, SD = 14.07). Allocation to risk categories based on the Australian Alcohol Guidelines were conducted for both the m‐DDQ and QF methods. Almost twice as many students were found to be drinking at levels considered risky using the m‐DDQ method compared with QF. In addition, the relative rank order of participants varied significantly between the two methods. Discussion and Conclusions. The m‐DDQ method identified higher rates of drinking and categorised almost twice as many individuals into risky categories of drinking compared with QF. Such variations have major implications for identification of risk groups in health promotion or prevention programs.[Utpala‐Kumar R, Deane FP. Rates of alcohol consumption and risk status among Australian university students vary by assessment questions. Drug Alcohol Rev 2009]     

整形外科临床教学模式浅析

随着整形美容外科专业在我国的蓬勃发展,国内不同等级的医疗机构对经过正规培训的整形美容外科医生的需求逐年在增加。为了提高教学效果,针对整形外科不同层次的学生,我们采用了多种形式、有针对性的教学模式,并取得了一定的效果。本文分别从教学查房、手术带教、读书报告、技能培训、学术交流、专题讲座等多个层面浅析了整形外科临床教学模式。     

关于医学生外科临床实习质量的探讨

外科是一门实践性很强的学科，如何培养实用型医学人才是摆在我们面前的首要问题。本文分析了外科临床实习中存在的问题，并提出一些应对措施。     

Fat and water separation in balanced steady-state free precession using the Dixon method.

In this work the feasibility of separating fat and water signals using the balanced steady-state free precession (SSFP) technique is demonstrated. The technique is based on the observation (Scheffler and Hennig, Magnetic Resonance in Medicine 2003;49:395-397) that at the nominal values of TE = TR/2 in SSFP imaging, phase coherence can be achieved at essentially only two orientations (0 degrees and 180 degrees ) relative to the RF pulses in the rotating frame, under the assumption of TR < T2, and independently of the SSFP angle. This property allows in-phase and out-of-phase SSFP images to be obtained by proper choices of the center frequency offset, and thus allows the Dixon subtraction method to be utilized for effective fat-water separation. The TR and frequency offset for optimal fat-water separation are derived from theories. Experimental results from healthy subjects, using a 3.0 Tesla system, show that nearly complete fat suppression can be accomplished.     

搞好"病原生物学"教学及促进学科发展的实践与体会

将“医学微生物学”和“人体寄生虫学”整合为“病原生物学”符合现代医学教育的取向。中国医科大学是将两个教研室从形式到实质性合并为“病原生物学”教研室，并且将两门课完全融合成一门课程和一套教师队伍进行教学的少数院校之一。本文总结了在这一新学科教学和促进学科发展中的经验和体会。     

预防医学考试试卷分析与评价

目的分析并评价郧阳医学院 2 0 0 0级本科临床医学专业预防医学期末考试试卷。方法随机选择 2 0 0 0级本科临床医学专业 3 5 1名学生的期末考试试卷进行统计分析。结果考试成绩呈负偏态分布 ,平均成绩为 72 3分 ,标准差为9 77分 ,试卷信度为 0 99。结论本试卷能较全面地考核学生对课程的掌握程度 ,但是也反映出学生综合应用试题得分较低、某些试题难易不当等问题 ,为改进教学质量提供了参考依据     

提高与保证生物化学教学质量的探讨

随着生物化学和分子生物学的快速发展,生物化学的理论和技术被广泛应用于各种研究领域.因此不断提高教师的业务素质、采用先进的教学手段和教学模式、改革生物化学的实验教学,是提高与保证生物化学教学质量的前提,也是衔接后期研究生教学的重要环节.     

学生课堂教学质量评价问题浅析

综合分析河南中医学院近三年以来学生课堂教学质量评价反馈的信息，认为引发课堂教学评价偏差的人为因素有评价者的能力水平、责任心、情感倾向。其对策为：改变教师的被动地位，进一步修订评价体系，加强对组织评价者的培训，强化临床课的教学，进一步提高学生的认识，跟踪调查课堂教学质量评价。     

化学实验进行开放式教学的研究

通过与传统的化学实验教学模式的比较，详述了开放式教学模式的特点，并且针对实施过程中所遇到的问题提出了详尽的解决方案。