Homeowner Behavior,Health Status,and Medicaid Payment Eligibility: Evidence from the Deficit Reduction Act of 2005

This paper analyzes the effect of a change in the status of housing equity as a protected asset for Medicaid long‐term care payment eligibility. A difference‐in‐difference‐in‐differences strategy is employed to estimate the effect of the policy on the housing equity holdings of potentially treated individuals. Using a panel of unmarried homeowners, the policy induced treated individuals who were likely to require long‐term care to hold less housing equity by values of $82,000 to $193,000 relative to control individuals. This equates to relative reductions of 12 to 29 percent for treated individuals after the policy change. Similar effects are not observed when considering health measures less predictive of long‐term care services and for a sample of married households who were unlikely affected by the policy. These estimates confirm the importance of the housing asset as a shelter for Medicaid eligibility.     

基于DS18B20设计的多点测温系统

多点温度测量系统在工程项目中应用越来越广泛.文中介绍了基于DS18B20数字温度传感器设计的10点测温系统、DS18B20的基本特性、系统硬件电路的连接及软件的设计流程.     

Curriculum Reform in The Common Core Era: Evaluating Elementary Math Textbooks Across Six U.S. States

Can a school or district improve student achievement simply by switching to a higher-quality textbook or curriculum? We conducted the first multi-textbook, multi-state effort to estimate textbook efficacy following widespread adoption of the Common Core State Standards (CCSS) and associated changes in the textbook market. Pooling textbook adoption and student test score data across six geographically and demographically diverse U.S. states, we found little evidence of differences in average achievement gains for schools using different math textbooks. We found some evidence of greater variation in achievement gains among schools using pre-CCSS editions, which may have been more varied in their content than post-CCSS editions because they were written for a broader set of standards. We also found greater variation among schools that had more exposure to a given text. However, these differences were small. Despite considerable interest and attention to textbooks as a low-cost, “silver bullet” intervention for improving student outcomes, we conclude that the adoption of a new textbook or set of curriculum materials, on its own, is unlikely to achieve this goal.     

The Unexpected Effects of No Pass,No Drive Policies on High School Education

Since 1988, 27 states have introduced No Pass, No Drive laws, which tie a teenager's ability to receive and maintain a driver's license to various school-related outcomes—most commonly, enrollment and attendance. Enrollment-Based No Pass, No Drive policies, in 21 states, target both enrollment and attendance, and have negligible effects on dropout rates. However, these policies decrease the Averaged Freshman Graduation Rate (AFGR) by between 1 and 1.7 percentage points. This lower graduation rate stems from students delaying their dropout decision by up to two years. As a result, these students are retained in the ninth and tenth grades, increasing 9th-grade enrollment by 3.6 percent relative to 8th-grade enrollment the year prior; this causes an artificial reduction in the graduation rate, rather than a reduction in the true likelihood that a student will graduate. Truancy-Based No Pass, No Drive policies, in five states, target only attendance—teens that fail to meet a minimum attendance requirement lose their driver's license. However, these policies allow students to drop out of school without facing this penalty. These policies increase the annual dropout rate by between 23 and 34 percent (1 to 1.6 percentage points).     

Political Ideology,Political Party,and Support for Greater Federal Spending on Environmental Protection in the United States: Evidence from the General Social Surveys, 1993–2018

This paper focuses on the effects of political ideology and party affiliation on support for more government spending on environmental protection. Pooled‐sample results show that Liberals (Democrats) are more likely to support higher government spending on environmental protection than Moderates (Independents), who, in turn, are more likely to support higher spending levels than Conservatives (Republicans). The results persist even when we control for respondents' opinions concerning whether the federal government, in general, does too little or too much. When stratifying by party, ideological divisions generally narrow, while stratifying by ideology leads to slightly wider divisions between Democrats and Republicans. Together, these results suggest that when Liberals and Conservatives form opinions about government spending on the environment, party affiliation, to some degree, dampens the effects of ideology. Between 2014 and 2018 the probability of supporting more environmental spending increased, albeit slightly, for all ideologies and parties, but more so for Liberals and Democrats.     

Richtlinienkonforme Auslegung und unmittelbare Wirkung von EG-Richtlinien in der Rechtsprechung der österreichischen Höchstgerichte

Die unmittelbare Wirkung von EG-Richtlinien sowie die Auslegung nationalen Rechts in ihrem Licht sind Instrumente zur Herstellung von Gemeinschaftsrechtskonformit?t, die in der Rechtsprechung der ?sterreichischen H?chstgerichte sehr h?ufig zur Anwendung kommen. Der vorliegende Beitrag soll einerseits den, mancherorts immer noch bestrittenen, "Vorrang" der richtlinienkonformen Auslegung argumentativ untermauern sowie zur Kl?rung offener Fragen zu Zul?ssigkeit und Durchführung richtlinienkonformer Rechtsfortbildung beitragen. Weiters soll gezeigt werden, dass die H?chstgerichte sowohl in der methodisch notwendigen Abgrenzung der beiden Instrumente als auch der konkreten Anwendung richtlinienkonformer Auslegung nicht sehr einheitlich und nur wenig transparent urteilen.     

Kontrolle der ordentlichen Gerichtsbarkeit zwischen Scylla und Charybdis – eine Nachlese

Der Beitrag beschäftigt sich mit der B-VG-Novelle zur Kontrolle der Gerichtsbarkeit durch die VA. Nach den Vorstellungen der Expertengruppe Staats- und Verwaltungsreform im Bundeskanzleramt sollte diese Funktion ein eigener Justizanwalt übernehmen, weshalb die strukturellen Unterschiede zu den Ausgangsüberlegungen analysiert werden, ferner wird der Umfang der neuen Kontrollmittel dargestellt und verfassungsrechtlich gewürdigt.     

A型H1N1及H3N2亚型流感病毒实时荧光RT-PCR检测方法的建立

根据A型H1N1亚型流感病毒2009年北美变异株和H3N2亚型流行株的基因序列,设计了3套特异性引物、TaqMan探针,分别用不同的荧光基团标记,以构建的A型流感病毒及H1N1和H3N2亚型流感病毒基因重组质粒作为阳性对照,经反应条件优化,特异性、敏感性和重复性试验,筛选出3套不同的反应体系及同一个反应参数,建立了可同时检测A型流感病毒、H1N1和H3N2亚型流感病毒的实时荧光RT-PCR方法。结果表明,该方法可特异地检测H1N1(人源、猪源)、H3N2(猪源),禽流感病毒H5、H9等A型流感病毒,且与新城疫病毒、减蛋综合征病毒等其他病毒不发生交叉反应,具有特异、敏感、重复性好、快速、费用低廉等优点,试验耗时仅3h。表明,建立的方法,一次试验即可完成A型流感病毒的初筛和H1N1、H3N2亚型流感病毒的初步确认定型。     

用AT89C2051设计的秒倒计时器

本文介绍了一种利用单片机AT89C2051设计的秒倒计时器,具体介绍了硬件的电路设计、接口技术和软件的设计方法。该方案具有一定的实用性和使用上的方便性．并成功地应用在蓝球比赛和知识竞赛比赛中。     

Journey history reconstruction from the soils and sediments on footwear: An empirical approach

The value of environmental evidence for reconstructing journey histories has significant potential given the high transferability of sediments and the interaction of footwear with the ground. The importance of empirical evidence bases to underpin the collection, analysis, interpretation and presentation of forensic trace materials is increasingly acknowledged. This paper presents two experimental studies designed to address the transfer and persistence of sediments on the soles of footwear in forensically relevant scenarios, by means of quartz grain surface texture analysis, a technique which has been demonstrated to be able to distinguish between samples of mixed provenance.It was identified that there is a consistent trend of transfer and persistence of sediments from hypothetical pre-, syn- and post-crime event locations across the sole of the shoe, with sediments from ‘older’ locations likely to be retained in small proportions. Furthermore, the arch of the shoe (the area of lowest foot pressure distribution) typically (but not exclusively) retained the highest proportion of grain types from previous locations including the crime scene. A lack of chronological layering of the retained sediments was observed indicating that techniques that can identify the components of mixed provenance samples are important for analysing footwear sediment samples. It was also identified that the type of footwear appeared to have an influence on what particles were retained, with high relief soles that incorporate recessed areas being more likely to retain sediments transferred from ‘older’ locations from the journey history. In addition, the inners of footwear were found to retain sediments from multiple locations from the journey history that are less susceptible to differential loss in comparison to the outer sole. These findings provide important data that can form the basis for the effective collection, analysis and interpretation of sediments recovered from both the outer soles and inners of footwear, building on the findings of previously published studies. These data offer insights that enable inferences to be made about mixed source sediments that are identified on footwear in casework, and provide the beginnings of an empirical basis for assessing the significance of such sediment particles for a specific forensic reconstruction.