A LOG‐MULTIPLICATIVE ASSOCIATION MODEL FOR ALLOCATING HOMICIDES WITH UNKNOWN VICTIM‐OFFENDER RELATIONSHIPS*

This research note critically evaluates conventional methods for allocating homicides with an unknown victim/offender relationship to meaningful categories, and it proposes an alternative approach. We argue that conventional methods are based on a problematic assumption, namely, that the missing data mechanism is “ignorable.” As an alternative to these methods, we propose an imputation algorithm derived from a log‐multiplicative model that does not require this assumption. We apply this technique to estimate levels of homicides disaggregated by victim/offender relationship using the Federal Bureau of Investigation's Supplementary Homicide Report (SHR) data for 1996 and 1997, and we compare the resulting estimates with those obtained from the application of conventional procedures. Our results yield a larger proportion of stranger homicides than are obtained from the conventional methods.     

大鼠液压冲击脑损伤TGF-β1及其受体TβR I的表达

目的观察脑损伤后TGF-β1及其受体TβRI蛋白表达及其时序性变化,探讨脑损伤的分子机制及法医学脑损伤时间推断。方法用免疫组织化学方法观察大鼠液压冲击脑损伤后TGF-β1及其受体TβRI蛋白在伤后不同时间(30 min、1 h、3 h、6 h、12 h、1 d、3 d、7 d)的表达情况,以正常大鼠及手术大鼠作为对照。结果 (1)正常及手术对照组大鼠脑组织内有低水平的TGF-β1及TβRI表达;(2)脑损伤后1～3d,大脑皮质和脑干TGF-β1/TβRI蛋白表达逐渐增加,7 d时仍维持在高表达水平;(3)海马冲击后12 h～1 d逐渐增加,3 d时仍处于高表达水平,7 d时已开始下降。结论脑损伤可诱导TGF-β1/TβRI基因在脑内表达,其时序性改变可望用于法医学脑损伤时间推断。     

《红楼梦》景物描写的文化观照

自然环境中的景物描写作为典型环境的构成要素对于典型人物的塑造很有意义。曹雪芹在《红楼梦》中的景物描写，不但对塑造贾宝玉、林黛玉等典型人物起到了重要作用，还让读者嗅到了整个时代的文化气息。     

Doctors in Extremity

Book Reviews in This Article:
Robert Jay Lifton, The Nazi Doctors: Medical Killing and the Psychology of Genocide.
Eric Stovcr and Elena O. Nightingak, eds., The Breaking of Bodies and Minds: Torture, Psychiatric Abuse and the Health Professions.
Elliot S. Valenstein, Great and Desperate Cures: The Rise and Decline of Psychosurgery and Other Related Treatments for Mental Illness.     

Changes in Legislative Support for the Governor's Program Over Time

Abstract This study examines changes in legislative support for the governor's legislative agenda in Georgia during the governor's first term in office (1991–94). I analyze the factors that led legislators to support the governor's agenda, as well as how the level of support changed between election years and off‐years. I use multivariate OLS models of gubernatorial support to determine how support varied (1) between the parties, (2) between factions within parties, and (3) over time. I find that there was wide variation in support among factions in the majority party and that support varied widely between election years and off‐years.     

学习困难学生的归因特点及其矫正

根据引自徐芬在<学业不良儿童的教育与矫治>一书的表述,我们可以把学习困难定义为:第一,学业困难儿童的智力是正常的,即其智力测验的分数(智商)在正常范围内,但在学校的学习中有严重困难,具体地说,在某门或几门课程的学习中有一些特殊的缺陷;第二,学习困难儿童可能在某些特殊能力或学习技能(如解决问题、听、说、语言、注意、记忆、写作、计算等等)上有一定的缺陷;第三,上述这些能力的缺陷并不是由于生理或身体上的原发性缺陷(如盲、聋、哑、身体残疾或视力问题等)所造成,也不是由于情绪障碍、教育与环境剥夺造成;第四,这些儿童要达到一般学习水平(及格水平)或达到教育大纲所要求的水平需要额外的督促与辅导,有的甚至需要特殊的教育与帮助.