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21.
A construct is a phenomenon of theoretical interest, and is divided into reflective construct and formative construct. Public service motivation is a constructive or reflective construct, and there is some consensus among the academic circles that the first order of public service motivation is reflective.But there is a debate about the nature of the two order construction. It is found that the predictive ability and the degree of fit of the "first order reflective and second order reflective" conception of public service motivation in structural equation model are higher than the "first order reflective and second order formative".The direction of the relationship between public service motivation and its first-order potential variables in the context of grassroots public administration in China is from public service motivation to first-order potential variables, and public service motivation should be defined as a "first-order reflective second-order reflective" construct. In the future, researchers in public administration should carefully consider the nature of the constructs of public management and the effect of the nature of the constructs on the model.  相似文献   
22.
Abstract:  The Atomic Force Microscope (AFM) is capable of imaging fingerprint ridges on polished brass substrates at an unprecedented level of detail. While exposure to elevated humidity at ambient or slightly raised temperatures does not change the image appreciably, subsequent brief heating in a flame results in complete loss of the sweat deposit and the appearance of pits and trenches. Localized elemental analysis (using EDAX, coupled with SEM imaging) shows the presence of the constituents of salt in the initial deposits. Together with water and atmospheric oxygen—and with thermal enhancement—these are capable of driving a surface corrosion process. This process is sufficiently localized that it has the potential to generate a durable negative topographical image of the fingerprint. AFM examination of surface regions between ridges revealed small deposits (probably microscopic "spatter" of sweat components or transferred particulates) that may ultimately limit the level of ridge detail analysis.  相似文献   
23.
Abstract:  Effective removal of fingerprint deposits is crucial for experimentation related to the corrosion of metals by fingerprint deposits. Such removal is also necessary prior to deposition of test fingerprints. The effectiveness of four regimes in removing fingerprint deposits from brass is considered. Sustained wiping of the deposit with a tissue at applied pressures of up to c . 1430 Pa or rubbing while the brass was immersed in acetone both failed to remove completely all traces of fingerprint deposits. Heating the brass to 600°C was an effective remover; however, this also oxidized the surface of the metal except where inhibited by fingerprint deposits. The most effective regime, and the only one of the four that removed all traces of deposit without affecting the properties of the metal surface, was immersion in warm soapy water while rubbing with a tissue. We propose this as the preferred method for fingerprint removal.  相似文献   
24.
The ability to determine the age of fingerprints would be immeasurably beneficial in criminal investigations. We explore the possibility of determining the age of fingerprints by analyzing various compounds as they diffuse from the ridges to the valleys of fingerprints using matrix‐assisted laser desorption/ionization mass spectrometry imaging. The diffusion of two classes of endogenous fingerprint compounds, fatty acids and triacylglycerols (TGs), was studied in fresh and aged fingerprints on four surfaces. We expected higher molecular weight TGs would diffuse slower than fatty acids and allow us to determine the age of older fingerprints. However, we found interactions between endogenous compounds and the surface have a much stronger impact on diffusion than molecular weight. For example, diffusion of TGs is faster on hydrophilic plain glass or partially hydrophilic stainless steel surfaces, than on a hydrophobic Rain‐x treated surface. This result further complicates utilizing a diffusion model to age fingerprints.  相似文献   
25.
Corporate groups, a ubiquitous feature of modern business, pose formidable challenges for common law courts relying on traditional corporate law doctrine. Arising out of a corporate group's recent bid to recover millions of dollars in lost profits from a former director and CEO who had diverted a core business, Goh Chan Peng v Beyonics Technology Ltd raised thorny issues of separate legal entity doctrine, single economic unit theory, and reflective loss shared by common law legal systems. Despite finding that the defendant had breached his duties to the ultimate holding company, the Singapore Court of Appeal absolved the faithless director from most of his liabilities, relying on limited domestic precedent to the exclusion of a rich body of Commonwealth jurisprudence – including the House of Lords’ landmark Johnson v Gore Wood decision. This note explores the paths not taken by the court, and highlights the pitfalls of a narrow, autochthonous approach to problems of common law doctrine.  相似文献   
26.
An acceptable area for collecting DNA reference sample is a part of the forensic DNA analysis development. The aim of this study was to evaluate skin surface cells (SSC) as an alternate source of reference DNA sample. From each volunteer (n = 10), six samples from skin surface areas (forearm and fingertips) and two traditional samples (blood and buccal cells) were collected. Genomic DNA was extracted and quantified then genotyped using standard techniques. The highest DNA concentration of SSC samples was collected using the tape/forearm method of collection (2.1 ng/μL). Cotton swabs moistened with ethanol yielded higher quantities of DNA than swabs moistened with salicylic acid, and it gave the highest percentage of full STR profiles (97%). This study supports the use of SSC as a noninvasive sampling technique and as a extremely useful source of DNA reference samples among certain cultures where the use of buccal swabs can be considered socially unacceptable.  相似文献   
27.
In the past, improvements in craniofacial reconstructions (CFR) methodology languished due to the lack of adequate 3D databases that were sufficiently large and appropriate for 3‐dimensional shape statistics. In our study, we created the “FACE‐R” database from CT records and 3D surface scans of 400 clinical patients from Hungary, providing a significantly larger sample that was available before. The uniqueness of our database is linking of two data types that makes possible to investigate the bone and skin surface of the same individual, in upright position, thus eliminating many of the gravitational effects on the face during CT scanning. We performed a preliminary geometric morphometric (GMM) study using 3D data that produces a general idea of skull and face shape correlations. The vertical position of the tip of the (soft) nose for a skull and landmarks such as rhinion need to be taken into account. Likewise, the anterior nasal spine appears to exert some influence in this regard.  相似文献   
28.
Current standards for age at death estimation from the pelvis are based on Americans of European and African ancestry. Our limited understanding of population variability hampers our efforts to apply these techniques to the various skeletal populations around the world, especially in global forensic contexts. However, documented skeletal samples are rare, limiting our ability to test our techniques. This study tested the Suchey-Brooks pubic symphysis aging method and the auricular surface method originally developed by Lovejoy et al. on a large sample (n = 404) of known sex and age from the Sassari Collection, housed at the Museum of Anthropology at the University of Bologna, Italy. The results indicate that for both methods, bias and inaccuracy increased with age and actual age tended to be underestimated over the age of 40. The auricular surface method performed slightly better, exhibiting slightly lower levels of bias and inaccuracy, especially for males.  相似文献   
29.
目的 探讨舌面散刺联合金津、玉液点刺出血治疗脑卒中后吞咽困难的临床疗效。方法 将60例脑卒中后吞咽困难患者,采用随机数字表法按患者入院先后顺序随机分为对照组30例,治疗组30例。两组均给予神经内科常规西药治疗及吞咽功能康复训练,对照组采用常规针刺,取廉泉、风府、哑门穴,治疗组在对照组基础上采用舌面散刺联合金津、玉液点刺出血,2周为1个疗程。2周后采用洼田饮水试验量表、改良曼恩吞咽能力评估(Mann assessment of swallowing ability,MASA)量表、改良Barthel指数(modified Barthel index,MBI)量表评价并比较两组的疗效。结果 治疗后两组患者洼田饮水试验量表评级比较,差异有统计学意义(Z=-4.026,P=0.000);且治疗后治疗组的洼田饮水试验量表评级在Ⅰ级、Ⅱ级分布占比较多;广义估计方程统计结果表明,两组治疗方法产生的疗效不同,治疗组吞咽功能恢复情况优于对照组(P<0.05),治疗后吞咽功能疗效优于治疗前(P<0.05)。两组患者治疗后MBI量表评分、MASA评分均较治疗前显著升高(P<0.05),且治疗组MBI量表评分升高程度大于对照组(P<0.05)。结论 舌面散刺联合金津、玉液点刺出血治疗脑卒中后吞咽困难疗效确切,该治疗方法可促进神经功能恢复,减轻患者脑卒中后吞咽困难症状,提高患者生活质量。  相似文献   
30.
This article considers challenges posed to reading practices and hermeneutics by Ishtiyaq Shukri’s I See You. The content of the novel is at times didactic, and surface reading might seem an appropriate means of analysis, yet the form is experimental: it includes radio reports, characters’ reflections and journalistic work. The connection between these “documents” is not readily apparent, thus one is obliged to study the gaps between them to make sense of the text. Symptomatic reading might seem apposite, but the protagonist’s photographic work reveals the limits of this form of reading, too. I argue that Shukri’s text demands a process that interweaves symptomatic and surface reading in complex ways that require the reader to assess the ideological position from which s/he reads. The novel therefore draws attention to the ways in which reading, like seeing, is a political act.  相似文献   
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