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91.
Jeffrey James Lynch M.Sc. Heli Maijanen Ph.D. Andreas Prescher Ph.D. 《Journal of forensic sciences》2019,64(1):181-185
This study analyzes three tibia length measurement techniques on a sample of 107 tibiae. Two of the techniques meet published criteria by resting the tibia on its posterior surface with the longitudinal axis parallel to an osteometric board. The third technique does not adequately keep the longitudinal axis parallel to the board. Statistical analyses show low levels of interobserver error for all techniques and statistically significant differences between the third technique and the other two techniques. Results report a maximum difference of 6 mm between measurement techniques with the third technique having greater than 95% directional bias. A survey sent out to the American Academy of Forensic Sciences forensic anthropology community reported more than 50% of respondents having been taught the third technique when an osteometric board with a slot/hole is not available. The intermixing of the third technique with the other two has likely contributed to higher levels of interobserver error in tibia length measurements. 相似文献
92.
Julia D. Warnke‐Sommer Ph.D. Jeffrey James Lynch M.Sc. Sachin S. Pawaskar Ph.D. Franklin E. Damann Ph.D. 《Journal of forensic sciences》2019,64(1):23-33
A new pairwise osteometric pair‐matching approach based on the Z‐transform method is presented. In contrast to previous methods that perform a global t‐test on the summed skeletal element pair measurement distances, this approach performs t‐tests on each individual distance, facilitating the capture of measurement‐specific variation. This new approach is compared to published pairwise sorting methods using a standard reference dataset of postcranial remains maintained by the Defense POW/MIA Accounting Agency. Receiver operating characteristic curve analysis indicates significantly improved performance for the clavicle and radius over all previous methods (p < 0.01). The z‐transform method weighted by the effect size outperformed the t‐test (Byrd and Adams) and the mean t‐test (Lynch) for all elements (p < 0.01). The method performed better than the absolute value t‐test (Lynch) for five elements (p < 0.01) and performed at least as well for the remainder. To facilitate usability all methods are available at: https://github.com/spawaskar-cora/z-transform-method . 相似文献
93.
Min Xie Karen Heimer James P. Lynch Michael Planty 《Journal of Quantitative Criminology》2018,34(3):657-690
Objectives
We used multilevel data from the National Crime Victimization Survey (NCVS) to identify factors that account for differences in risk of violent victimization among young Latino adults in new and traditional settlement areas.Methods
Area-identified NCVS data (2008–2012) were linked with census tract data from the decennial census and American Community Survey to study individual and community contributions to the risk of violent victimization. We analyzed total violence and violence specific to offense types and victim-offender relationship. The analyses were performed adjusting for the complex survey design.Results
Young Latino adults in new settlement areas have higher victimization rates than their counterparts in traditional areas for total violence and for the majority of violence types studied. Holding constant individual and other contextual factors, Latino population density is a key neighborhood characteristic that explains the observed area differences in victimization, yielding evidence for the hypothesis that co-ethnic support in a community helps protect young Latino adults and contributes to differences in victimization across areas. Also there is evidence that the protective role of Latino population density is stronger for violence involving non-strangers than it is for violence involving strangers. Moreover, we find that the concentration of Latino immigrants, which indicates the neighborhood potential for immigrant revitalization, is another neighborhood factor that protects young Latino adults in both new and traditional settlement areas. However, there is some but limited evidence that the neighborhood-revitalizing role of immigration might be smaller in some contexts (such as some new areas outside central cities), possibly because those areas are heterogeneous in their ability to promote the integration of immigrants.Conclusions
Our analysis of the NCVS shows the importance of neighborhood factors for the risk of violence among young Latino adults. It provides evidence consistent with co-ethnic support and immigrant revitalization theories. The findings also suggest that the effects of those neighborhood factors may be contingent upon violence type and the context in which they occur. These findings help us understand the difference in the safety of young Latino adults in new and traditional areas.94.
Jeffrey James Lynch M.Sc. 《Journal of forensic sciences》2018,63(3):798-804
This study compares the original osteometric sorting association method with an ordination approach across all combinations of the humerus, ulna, radius, femur, tibia, and fibula. This includes both the original prediction interval and t‐statistic approaches. Standard measurements are utilized in the models with full measurements combined and without length measurements. The sample is the osteometric sorting reference from the Defense POW/MIA Accounting Agency. A full set of performance statistics is provided. Results indicate the ordination approach outperforms the original in the majority of bone combinations. Models with length measurements have more exclusion power than those without. It is recommended for the ordination approach to supersede the original when applied to large commingled assemblages. 相似文献
95.
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97.
The postmortem concentrations of citalopram in blood, bile, liver, and vitreous humour were investigated in 14 cases using a specially developed high performance liquid chromatography assay. Concentrations from drug and non-drug related deaths were categorized to determine a postmortem therapeutic and toxic range. Therapeutic citalopram concentrations for blood, bile, liver, and vitreous humour ranged to 0.4 mg/L, 2.1 mg/l, 6.6 mg/kg, and 0.2 mg/L, respectively. In one potentially fatal response to citalopram, concentrations were 0.8 mg/L, 6.0 mg/L, 0.3 mg/L for blood, bile and vitreous humour, respectively. 相似文献
98.
This study examines budget experts' perceptions on suggested federal budget reforms. Based on the response of a group of selected public budgeting professors (N = 46), the study identifies several specific reforms that are supported by the experts from both the viability and adoptability consideration. The study also reveals the fact that the respondents are less optimistic about the adoptability of the suggested reforms even though they generally agree with most of the reforms. Addressing the federal deficit problem, the authors further discuss the implication of the experts' perceptions on federal budget reforms. 相似文献
99.
John P. Hill Grayson N. Holmbeck Lynn Marlow Thomas M. Green Mary Ellen Lynch 《Journal of youth and adolescence》1985,14(4):301-316
The associations between menarcheal status and several child-rearing and outcome variables were examined for mother-daughter and father-daughter dyads. All variables were assessed with questionnaires as an extension of earlier observational studies. Analyses were conducted via multiple regression analyses wherein menarcheal status was treated as a continuous variable and was entered into the regression equation as a set of power polynomial terms. The results indicated that most of the significant relations occurred for the mother-daughter dyad, and most of these relations were curvilinear. When menarche occurs at or around the modal time, changes in parent-child relations may be best thought of as temporary perturbations, but when menarche occurs early the effects may persist.The research reported here was funded by Father Flanagan's Boys Home, Inc., and by a grant to the senior author from the John D. and Catherine T. MacArthur Foundation, Family Relations in Early Adolescence.Received his Ph.D. in clinical psychology from Harvard University.Received his M.S. from Virginia Commonwealth University.Received her M.S. in counseling psychology from Virginia Commonwealth University.Received his M.S. from the University of Nebraska.She received her Ph.D. in developmental psychology from the Department of Human Development and Family Studies, Cornell University. 相似文献
100.
An initial 134 glasses have been collected from eleven classifications of glass used within Australia. These include both local and imported glasses. Quantitative elemental analyses of the glasses have been determined using a scanning electron microscope equipped with an energy dispersive X-ray spectrometer. The current program provides for an elemental analysis for Na, Mg, Al, Si, P, S or Pb, Cl, K, Ca, Ba or Ti, V, Cr, Fe, Mn and Zn expressed as oxides, and has a sensitivity down to approximately 0.1%. The data for the six most commonly occurring elements, namely, Na, Mg, Al, Si, K and Ca, together with the refractive index are presented for each class of glass in terms of their mean value and standard deviation from the mean, and also in histogram form. 相似文献