Diary of an astronaut: examination of the remains of the late Israeli astronaut Colonel Ilan Ramon's Crew Notebook recovered after the loss of NASA's space shuttle Columbia

Two months after the fatal re-entering into the Earth's atmosphere of Columbia flight STS-107, the remains of Israeli astronaut Colonel Ilan Ramon's Crew Notebook were found strewn in a field in San Augustine County, TX. The random pile of papers was found to have survived the calamity of the Shuttle's disintegration remarkably well. Most of the papers recovered were torn and/or washed out to varying degrees but only mildly charred around the edges. The sheets of paper could be categorized into four groups: Group I: eight sides of paper written while in space in black ink and in pencil--Ramon's personal diary; the writing on these eight sides of paper survived well and is only missing where the pages were torn. Small fragments found in the field were physically matched to holes in the pages thus locating their original positions in the text. Group II: six sides of technical preparation notes written by Ramon before the mission. The writing on these pages was washed out entirely, but much of it was visualized using infrared luminescence. Group III: eight sides of personal notes prepared by Ramon before the mission written in blue ink. The writing on these pages was barely visible to the naked eye and not visualized by infrared luminescence, but was made largely legible by digital enhancement imaging. Group IV: a few sides of printed technical information. These pages were mostly intact and were not examined at length as they contained standard printed material. After completion of examinations at the Questioned Document Laboratory of the Israel Police, the diary was transferred to the Paper Conservation Department of the Israel Museum for preservation and strengthening treatments.     

Knot‐Tying Habits,Tier Handedness,and Experience*

Abstract: Previous research concerning tier handedness, experience and the configuration of simple, habitual knots has been scant and conflicting. Survey data were collected from 21 disparate groups comprising 562 respondents in total. Regardless of experience, respondents tied both Granny and Reef Knots. Dextral tying was dominated by S knots. Left‐handers tied Z knots more frequently than right‐handers. However, the frequency of S and Z knots relative to tier hand dominance, which is not binary, occurred on a continuum. Averaging all survey tasks, more than 70% of knots tied by dextrals were S, whereas only 56% of those tied by sinistrals were S. These percentages varied somewhat according to specific tying tasks and the number of working ends. Furthermore, tiers’ shoelace and parcel knots were not always identical, and a ranked pattern in parcel and shoelace knots was revealed. The examination of habitual knots could benefit criminal investigations.     

Solving Double‐Sided Puzzles: Automated Assembly of Torn‐up Banknotes Evidence

Reconstruction of 2D object is a problem concerning many different fields such as forensics science, archiving, and banking. In the literature, it is considered as one‐sided puzzle problem. But this study handles torn banknotes as a double‐sided puzzle problem for the first time. In addition to that, a new dataset (ToB) is created for solving this problem. A selection approach based on the Borda count method is adopted in order to make the right decision as to which keypoint‐based method is to be used in the proposed reconstruction system. The selection approach was determined the Accelerated‐KAZE (AKAZE) as the most successful keypoint‐based method. This study also proposes new measures determining the success ratio of the reconstructed banknotes and calculating their loss ratio. When the torn banknotes were reconstructed with the AKAZE‐based reconstruction system, the average success rate was calculated as 95.55% by the proposed metric.     

The Effects of High Dynamic Range on Fingerprint Images Processed by Photoshop

High dynamic range (HDR) imaging is a function that combines five images with different exposures into a single image. This technique may provide fine ridge details of fingerprint images for forensic latent fingerprint examination. Therefore, viewing fingerprints under optimal conditions is of paramount importance. This paper analyzes HDR and non‐HDR photos by using the Michelson contrast formula. The Michelson formula will provide a measurement to determine whether better contrast between the background and print can be achieved using the HDR function and if the background color affects the quality of the images. Two hypothesis were tested: (i) the HDR image provides more details of fingerprints with a better tone, greater clarity, and contrast than a normally exposed image regardless of the background color; (ii) the background color does not affect the quality of HDR fingerprint images overall, but the multi‐color background may increase the contrast of HDR fingerprint images in some cases.     

提高内在素质:塑造工会干部新形象的必要条件

新形势下塑造工会干部新形象是发展社会主义市场经济、维护职工权益对工会工作者的内在要求。塑造工会干部新形象,必须着眼于内在素质的提高,主要包括思想政治素质和职业道德水平、维权责任意识、与工会工作相关的业务知识,其中,思想政治素质是塑造工会干部新形象的思想基础和灵魂。     

人脑挫伤后波形蛋白表达的免疫组化染色观察

目的观察人脑挫伤后波形蛋白（vimentin,Vim）的动态变化,探讨星形胶质细胞Vim表达变化与脑损伤时间的关系。方法42例闭合性脑损伤死亡者,根据伤后死亡时间分为6组（〈2h,〈24h,〈3d,〈7d,〈14d,≤30d）;取大脑挫伤灶进行HE和Vim免疫组织化学染色,对Vim染色阳性细胞面积进行图像分析。结果HE染色显示,脑挫伤后2h挫伤灶内脑组织挫碎、出血,5．5h挫伤灶周出现反应性星形胶质细胞,3d脑水肿明显,7d反应性星形胶质细胞明显增多,14d胶质结节形成,30d出现大量泡沫细胞,胶质瘢痕增多。Vim染色结果显示,脑挫伤后5．5hVim开始表达,少量Vim阳性细胞出现在挫伤灶周围,7d阳性反应性最强,14d逐渐下降,30d胶质瘢痕增多,Vim阳性表达又增强。Vim阳性细胞主要为反应性星形胶质细胞。结论Vim在反应性星形胶质细胞内表达呈现一定波动性,其表达部位在脑挫伤周围,Vim免疫组化染色结合图像分析技术可作为推断脑挫伤时间及部位的参考指标。     

略论警察形象的重塑

警察形象是社会关注的焦点。树立良好的警察形象,对维护党的领导、保持政治稳定、建设和谐社会具有十分重要的意义。警察形象的负面影响原因有多方面的,公安机关应改革机制、转变作风、提高素质。要大力加强警察公共关系建设,培育良好的社会形象。     

关于利用彩色反转片拍照痕迹物证的探讨

在刑事技术工作中,使用彩色反转片拍照痕迹物证,然后利用柯达C—41的冲洗工艺加工,对于拍照提取与承受客体颜色相近、较难拍照的痕迹物证可以取得较好的效果,数码技术可以应用于彩色反转片的后期图像加工。     

Still sucked into the body image thing: the impact of anti-aging and health discourses on women's gendered identities

Health norms have changed over the past three decades, imposing more responsibility for health onto the individual. There are gendered implications of these changes which, when combined with increasing anti-aging pressures, have the potential to intensify the disciplinary relationship women have with their bodies. This paper, based upon interviews with 14 women, examines the impact of dominant health and anti-aging discourses on women's body practices, including exercise, makeup, clothing and diet, and ongoing construction of gendered subjectivity. Findings suggest that the women in this study are motivated to do particular body practices because of their concern with having a healthy and youthful ‘looking’ body. The women's stories reveal that anti-aging and health discourses function to reinforce normative bodily demands of femininity and consequently to intensify disciplinary control of their bodies. While the pressure to fight the appearance of aging is not new, the increasing association of aging with ill health, even illness, in conjunction with the promotion of health has implications for women's relationship with their bodies and sense of self.     

政府形象与我国经济法

本文重新梳理了政府与市场的关系,由政府与市场的互动,论证一定意义上政府的竞争就是经济的竞争,而经济法作为规制市场行为和政府行为的基本法律,必然要求市场经济中良好政府形象的树立。固立足于国情,提出重塑政府形象与完善我国经济法的要求。