Skepticism and Cryptography

Cryptography is an essential component of America’s national security infrastructure. Billions of dollars are spent on cryptosystems every year, in both the public and private sector. Unfortunately, the field is rife with dubious claims, snake oil salesmen, and outright fraud. This paper highlights the importance of skepticism and critical thinking in the role of evaluating and procuring cryptosystems. We discuss our experiences in teaching future leaders about testing extraordinary cryptographic claims by asking hard questions and show examples from our own experience. We believe that the rigorous application of skepticism and critical thinking in cryptography are absolutely essential to the wise use of America’s resources and the security of the nation.

中印医疗保障制度的比较与思考

印度与中国有许多相似的地方,如人口众多,经济水平不高,同属于发展中国家等,虽然近几年印度的经济发展不如中国快,但他们在医疗保障方面却做的比较好,有许多可以比较和值得借鉴的地方,尤其是重视农村和弱势群体的卫生保健,值得我们学习。     

英国医疗保障制度的改革经验及对中国的启示

英国是福利型社会保障制度的国家,它的医疗保障制度有力地保障了国民的生命健康,而且在医疗消费方面体现了相对公平的原则,同时存在一些不足的地方。英国医疗保障制度有很多值得中国借鉴的地方,对中国卫生体制改革具有重要的启示作用。     

Parental Dysphoria and Children’s Adjustment: Marital Conflict Styles,Children’s Emotional Security,and Parenting as Mediators of Risk

Dimensions of martial conflict, children's emotional security regarding interparental conflict, and parenting style were examined as mediators between parental dysphoria and child adjustment. A community sample of 262 children, ages 8–16, participated with their parents. Behavioral observations were made of parents’ interactions during marital conflict resolution tasks, which children later observed to assess their emotional security. Questionnaires assessed parents’ dysphoria, parenting, and children's adjustment. Structural equation modeling indicated that parental dysphoria was linked with child adjustment through specific and distinct mediating family processes, including marital conflict and parenting. Children's emotional security in the context of particular marital conflict styles also mediated relations between parental dysphoria and child adjustment problems, with similar pathways found for mothers and fathers. These pathways remained significant even after significant parenting contributions were considered.     

骨折术后运动康复安全评定的几点体会

骨科学以运动系统疾病为对象,功能康复是骨科疾病治疗的最终目的。骨科治疗与康复是不可分割的整体。但骨科治疗与康复往往未能很好地结合,探索将两个学科有机地结合起来的安全运动康复评定的几点体会,制定出合理的运动处方,为较大限度地提高骨折疾病的功能疗效。     

父母冲突与中学生应对方式的关系:教养方式和情绪安全感的链式中介作用

为了探讨父母冲突、父母教养方式、情绪安全感和应对方式的关系,研究采用量表对北京市和河南省1322名初一到高二的学生进行调查。结果表明：父母冲突直接影响中学生的应对方式,且存在三条路径：通过父母教养方式的单独中介作用影响中学生的积极应对方式和父母消极教养方式的单独中介作用影响中学生的消极应对方式;通过情绪不安全感的单独中介作用影响中学生的应对方式;通过父母消极教养方式和情绪不安全感的链式中介作用影响中学生的应对方式。因此减少和避免父母冲突,提高中学生的情绪安全感,同时给予中学生积极教养方式,减少和避免消极教养方式,有利于中学生积极应对方式的发展。     

The interplay of stress and attachment in individuals weathering loss of employment

This study addressed two questions concerning the interplay between adult romantic attachment and exposure to stressful circumstances: do stressful events predict fluctuation in romantic attachment during a period of unemployment, and does attachment measured at one point predict later changes in stressors? Stressors and attachment were measured over a six month period following involuntary job loss for a sample of 426 adults. Autoregressive models found evidence for both the stress-effects and stress-generation hypotheses, with more stressors associated with prospective decreases in attachment, and lower attachment associated with prospective increases in stressors. These findings support a more dynamic formulation of the interplay between attachment and exposure to stressors over the months following job loss.     

A threat to Canadian national security: a lesbian soldier’s story

Before 1992, lesbians and gay soldiers were purged and discharged from the Canadian military for “reasons of homosexuality.” Those caught or suspected of homosexuality were subject to lengthy, humiliating, and degrading interrogations. This short story sheds light on this painful past. It is based on findings of a nationally funded pan-Canadian longitudinal study examining how Canadian military policies and practices influenced the lives of lesbian, gay, bisexual, and transgender soldiers and their partners. In total, 126 people were interviewed. While in the military, countless soldiers were investigated, numerous interrogated, many lost their careers, some committed suicide and others survived. Personal details have been changed to ensure the anonymity of the people, but it is their voices that tell this story. An official state apology was delivered November 28, 2017. Due to an impending class action court case, an agreement for compensation was also reached. Compensation and memorials will be forthcoming to those who were affected by the LGBTQI2+ purge campaign. To this day, no evidence exits that these soldiers were “ever” a threat to national security.     

On the anatomy of social engineering attacks—A literature‐based dissection of successful attacks

The aim of this study was to explore the extent to which persuasion principles are used in successful social engineering attacks. Seventy‐four scenarios were extracted from 4 books on social engineering (written by social engineers) and analysed. Each scenario was split into attack steps, containing single interactions between offender and target. For each attack step, persuasion principles were identified. The main findings are that (a) persuasion principles are often used in social engineering attacks, (b) authority (1 of the 6 persuasion principles) is used considerably more often than others, and (c) single‐principle attack steps occur more often than multiple‐principle ones. The social engineers identified in the scenarios more often used persuasion principles compared to other social influences. The scenario analysis illustrates how to exploit the human element in security. The findings support the view that security mechanisms should include not only technical but also social countermeasures.     

Women's attraction to benevolent sexism: Needing relationship security predicts greater attraction to men who endorse benevolent sexism

Benevolent sexism prescribes that men should cherish and protect women in intimate relationships. Despite the romantic tone of these attitudes, prior research indicates that benevolent sexism undermines women's competence, ambition, and independence. Ambivalent sexism theory proposes that benevolent sexism is able to incur these costs because the promise of a chivalrous and protective partner offers women security in their intimate relationships. We tested this key proposition by examining whether women who intensely need relationship security—women higher in attachment anxiety—are more attracted to men who endorse benevolent sexism. Highly anxious women (N = 632) rated men described as endorsing benevolent sexism as relatively more attractive, and reported greater preferences for partners to hold benevolently sexist attitudes. These results advance understanding regarding the underlying reasons women find benevolent sexism appealing and identify who will be most vulnerable to the potential costs of benevolent sexism.