The examination of typewriter correctable carbon film ribbons

The study of typewritten strokes on paper with an optical stereomicroscope or an optical microscope at high magnifications is deceptive and does not permit differentiation between impressions made with different ribbons, or identification of a certain ribbon brand. With the Scanning Electron Microscope, the identification/differentiation is possible as the structure of the strokes on the paper differs from one ribbon brand to another and is characteristic.     

Monetary transmission and the financial sector in the Czech Republic

In this paper, we (1) examine the interactions of financial variables and the macroeconomy within the block-restriction vector autoregression model and (2) evaluate to what extent the financial variables improve the forecasts of GDP growth and inflation. For this reason, various financial variables are examined, including those unexplored in previous literature, such as the share of liquid assets in the banking industry and the loan loss provision rate. Our results suggest that financial variables have a systematic and statistically significant effect on macroeconomic fluctuations. In terms of forecast evaluation, financial variables in general seem to improve the forecast of macroeconomic variables, but the predictive performance of individual financial variables varies over time, even though it strengthens during the 2008?C2009 crisis. The results give some support for the risk-taking channel of monetary policy, as the level of the monetary policy rate is positively associated with the loan loss provision rate of commercial banks. Finally, a more stable financial system is found to contribute to faster economic growth.     

Truth,justice, and education: towards reconciliation in the former Yugoslavia

Key to the success of peacebuilding and social reconstruction in the former Yugoslavia are the attitudes of these young people. Our goal in this paper is to explore young people’s attitudes about the prospects of reconciliation vis-a-vis those with whom their nations were formerly at war. In particular, we examine three sets of factors. First, we contend that the level of contact among people engendered by the segregated educational systems affects the attitudes of the young about the possibility of reconciliation. We suggest that those who are able to interact more frequently with fellow students from other ethnic groups will be more likely to believe in the possibility of reconciliation. Second, we contend that attitudes of young people about which ethnic groups were responsible for the violence in the former Yugoslavia and the efforts of the international community to bring truth and justice will strongly influence attitudes. Finally, we examine other factors such as education and the influence of gender on reconciliation.     

Fiscal Exchange and Tax Compliance: Evidence From a Field Experiment

Behavioral interventions appealing to taxpayers’ reciprocity often leave tax compliance unaffected. We provide evidence that a “fiscal exchange nudge” increased tax compliance in a setting where one might not expect it: crisis-ridden Argentina. In a randomized controlled trial with over 20,000 taxpayers, a tax bill visually celebrating realized public works benefiting children increased payment rates of tax delinquents by about 20 percent, or almost 40 percent when the bills were delivered in person. Without the appeal, the new bill design generated significantly fewer payments. Changes in the design of the tax bill also increased arrears cancellation. We estimate the ratio of marginal revenues to costs for the fiscal exchange bill to be 18. The factors we associate with the unexpectedly positive impacts are consistent with strengthening an affective response. We find persistent effects of the experiment two years later. The results suggest that communities have more scope to increase tax revenues through non-threatening interventions.     

Public research and the innovation performance of new technology based firms

Assessing the role of publicly funded scientific research in entrepreneurial ecosystems is of great interest for science and entrepreneurship policy. Knowledge from academic research flows into the private sector through publications, patents, and researcher mobility as well as through direct interactions between founders and researchers at public research institutions (PRIs). New technology-based firms (NTBFs) are generally praised for high innovativeness despite their resource constraints and liability of newness. This study therefore investigates the impact of direct interactions with PRIs on NTBFs’ innovation success. In a large sample of NTBFs in Germany, we find that those firms engaging in such knowledge interactions are more likely to introduce new products and services to the market. The strength of this association, however, depends on interaction persistency, internal R&D and the founders’ academic backgrounds. Non-academic start-ups benefit more from continuous informal interactions if they pursue own R&D, which suggests that absorptive capacity matters. In academic start-ups, higher intensities of both formal and informal interactions are associated with greater innovation likelihood. Moreover, continuous informal interactions complement formal ones in the absence of own R&D activity.

     

LC-MS-MS analysis of buprenorphine and norbuprenorphine in whole blood from suspected drug users

A liquid chromatography tandem mass spectrometry method is described for the analysis of buprenorphine and norbuprenorphine in whole blood. Linearity was achieved between 0.2-5 ng/g for buprenorphine and 0.5-5 ng/g for norbuprenorphine. Stability studies on spiked whole blood and an authentic sample showed no degradation of buprenorphine- and norbuprenorphine-glucuronide to their respective aglycones. Buprenorphine and norbuprenorphine showed some degradation when stored at 4°C for three weeks, but was stable when stored at -20°C for 4 weeks. The method was applied to forensic cases of driving under the influence of drugs (DUID) and petty drug offences (PDO) during 2007-2009. Out of 2459 cases analyzed, 322 were positive for both buprenorphine and norbuprenorphine (13%), 219 for buprenorphine only (9%), and 12 for norbuprenorphine only (0.5%). The mean and median concentrations (N=322) were 1.7 and 1.0 ng/g, respectively, for buprenorphine and norbuprenorphine. The mean and median norbuprenorphine/buprenorphine ratios were 1.5 and 1.1, respectively. There was no significant difference in concentration ratios for DUID and PDO cases (p>0.05). We conclude that the described method for analysis of buprenorphine and norbuprenorphine in whole blood could be used to investigate use or misuse of buprenorphine but that many of the cases presented with very low concentrations of buprenorphine. We also conclude that analysis should be performed within two weeks unless samples are stored frozen prior to analysis.     

Use of the global positioning system in the field recovery of scattered human remains

This study examines the Global Positioning System (GPS) as a tool for field mapping of scattered human remains or other materials in forensic investigations. Two aspects of the GPS are considered: (1) the level of accuracy that can be obtained using a mid-priced GPS unit, and (2) the effectiveness of using the GPS to map scattered materials. The positional accuracy of the GPS receiver was tested using a National Geodetic Survey (NGS) point located in Baton Rouge, LA. The utility of the GPS for mapping was investigated by setting up a mock field recovery and mapping the remains using both the GPS and traditional archeological methods. The results indicate that the positional error for a single location using GPS was less than one-half meter. However, when multiple positions were considered, the data produced on different days were not consistent. Further, the GPS receiver used in this study could not distinguish items in close association. Factors such as tree cover density, the proximity of the materials to structures or trees, and satellite positioning contributed to the erratic data. These results indicate that traditional techniques and photographs are still indispensable for mapping scattered remains or artifacts.     

Giant berry aneurysms in a forensic setting: a series of 14 cases

This is a series reviewing 14 cases of giant saccular aneurysms diagnosed at the Office of the Chief Medical Examiner of New York City collected over an 11-year period. Data collected on all 14 cases included neuropathological findings, comorbidities, and toxicological findings. Of these 14 cases, 8 were in women, and the ages ranged from 3 to 79 years, with a mean and a median of 50 years. Women were overrepresented in the sixth through eighth decades. Of the 14 cases described, 11 presented with a subarachnoid hemorrhage; 3, no hemorrhage; 2, subdural hemorrhage; 8, intraventricular hemorrhage; 2, intracerebral hemorrhage; and 8, more than 1 hemorrhage type. Location of the aneurysms varied with 6 in the left side of the brain, 6 present in the right side of the brain, and 2 at the midline. We described the clinical, pathological, and toxicological findings associated with these giant aneurysms.     

Book review

David V. Nowlin and Ronald J. Stupak. War as an instrument of policy: past, present, and future. university press of America, Lanham, MD, 1998.     

Where will I sleep tomorrow? Housing,homelessness, and the returning prisoner

Abstract

This year, over 630,000 prisoners will be released from state and federal prisons across the country—more than four times as many as were released in 1980. In this article, we examine the scope of the prisoner reentry issue—what is known about the intersection of housing, homelessness, and reentry and about the barriers returning prisoners face in securing safe and affordable housing.

Although the housing challenges are formidable, progress is being made on numerous fronts. We seek to frame the dynamics of the reentry housing discussion by highlighting the promising strategies that are emerging. These strategies, taken to scale, could help create a very different national policy on prisoner reentry. Ultimately, effective reentry strategies have the potential not only to reduce re‐arrest and increase public safety, but also to reduce homelessness.