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761.
Chris Brown 《Global Society》2004,18(1):5-19
Since 1815 it has been generally understood that the Great Powers acting in concert have some responsibility for ensuring/underwriting order and stability within international society—although it is clear that only occasionally have they actually discharged this responsibility. Contemporary conditions, where there is only one superpower, change the situation radically; the United States may be able to take the lead in organising the provision of global public goods such as an open global economy and a secure strategic environment, but it also may possess the capacity to promote its own particular conception of the good in the world— the conservatism characteristic of a concert of Powers may not dominate the actions of a single superpower. However, changes in the nature of "power' ' in an age of globalisation and "Empire'' may actually limit the capacity of any actor, or collection of actors, to discharge its responsibilities. 相似文献
762.
Because states have primary responsibility for the implementation of public health insurance programs, states need timely, good quality data to evaluate programs, monitor trends in the number and characteristics of the uninsured, and better understand the dynamics of health insurance coverage. This article provides a synthesis of the data sources available to states for monitoring rates of health insurance coverage. Information was collected through a comprehensive review of state and national health surveys and in-depth interviews with state analysts in all fifty states. Our findings suggest that national surveys do not meet states' needs for data, and in response, states have initiated their own household surveys. We provide information on thirty-six household surveys that are used to estimate state levels of health insurance coverage. We recommend that national and state efforts be better coordinated to facilitate efficient use of resources to achieve good state-level date. 相似文献
763.
William B. Brown 《Juvenile & family court journal》1998,49(2):1-14
We can no longer trivialize, or ignore, the impact of structural impediments, racial discrimination, and racial segregation in our analysis of African-American youth gangs in America's inner cities. These issues set a stage where 79 African-American youngsters view their gang affiliation as a means for survival. The present study, conducted over a four-year period, explores structural and racial barriers that many African-Americans, parents and children, encounter regularly. The participants, gang members and their parents, reveal their frustrations about the lack of opportunities for many inner city African-Americans, their experiences as targets of racial discrimination and segregation, and their confinement to deteriorating, poverty-stricken neighborhoods in Detroit. 相似文献
764.
765.
To assess the potential of employing metacarpals in assessing sex of human skeletal remains, previous investigators have generated regression equations (Scheuer & Elkington, 1995) and linear discriminant functions (Falsetti, 1995; Stojanowski, 1999) based upon measurements from metacarpals. Results have varied in overall accuracy and which metacarpal produces the greatest accuracy. Using a contemporary sample, this study seeks to evaluate the validity of using metacarpals to assign sex by testing methodologies of previous studies. Measurements defined by previous authors were repeated on metacarpals from 23 adult cadavers and data were subjected to regression equations and linear discriminant analysis according to previous methodologies. Accuracy in sex determination from methods of Scheuer & Elkington (1993) and Falsetti (1995) were lower than originally reported while accuracy from methods of Stojanowski (1999) were higher than previously reported. These results suggest that the use of metacarpals in sex determination may be limited and should be applied cautiously. 相似文献
766.
The questioned document laboratory is often called upon to decipher writing that has been erased, obliterated, or that has faded. In cases like these, the original writing is no longer legible to the naked eye, but may be enhanced using various light sources. Certain remnants of the ink's components absorb into the substrate's fibers and can be visualized, usually as luminescence or absorbance. A case is described here that involved the theft of a credit card. An empty plastic credit card holder was found in the possession of a suspect, and as submitted for examination. Indented impressions could be discerned on its clear plastic window and presumably originated from the credit card that had been held in the envelope. These indented impressions were deciphered in the hope that they would reveal enough details from the credit card to establish a connection between the plastic envelope and the stolen credit card. With methods generally utilized in the toolmarks and materials laboratory and the photography laboratory of the Israel Police, most of the indented impressions on the plastic were deciphered and a connection between the plastic envelope and the stolen credit card was demonstrated. 相似文献
767.
Due to their high polarity and low vapor pressure, most amine salts of amphetamine-type drugs are not directly amenable to headspace recovery using solid-phase microextraction (SPME). Described in this article is a simple vapor-phase procedure for the conversion of solid drug salt samples into their free bases by the use of triethylamine. This process can be conducted simultaneously with headspace SPME, the outcome being that solid drug salts can be sampled directly for GC-MS without the need for dissolution and chemical processing. Potential applications for this methodology include the noninvasive recovery of drug traces from objects such as banknotes and garments. This new process for recovery of amphetamine-type drugs has been combined with on-fiber derivatization using alkylchloroformates. This extra step was included to improve the chromatographic performance of analytes and allow for the resolution of drug enantiomers. 相似文献
768.
Brown R Killian E Evans WP 《International journal of offender therapy and comparative criminology》2003,47(5):529-541
Youths transitioning out of detention are particularly in need of support systems that can divert them from recidivism. This article examines the relationship between incarcerated youths' sense of their families' functioning and their perceived likelihood for postdetention success. Despite the control of background variables, results reveal that delinquents who indicated stronger familial functioning also reported a greater likelihood of future success. Although interventions that focus on improving the supportive capacity of families have shown great promise, treatment drop-out rates remain high. To explore incarcerated youths' view of family focused interventions, respondents rated the potential utility of family and nonfamily focused intervention options. A majority of respondents reported that family focused interventions would be helpful. A group of respondents, overrepresented by adolescents with low family functioning, reported that this type of intervention would not be helpful. These results are discussed in terms of their impact on offering family focused interventions for juveniles. 相似文献
769.
770.
Turner WD Brown RE Kelliher TP Tu PH Taister MA Miller KW 《Forensic science international》2005,154(2-3):149-158
Modern forensic facial reconstruction techniques are based on an understanding of skeletal variation and tissue depths. These techniques rely upon a skilled practitioner interpreting limited data. To (i) increase the amount of data available and (ii) lessen the subjective interpretation, we use medical imaging and statistical techniques. We introduce a software tool, reality enhancement/facial approximation by computational estimation (RE/FACE) for computer-based forensic facial reconstruction. The tool applies innovative computer-based techniques to a database of human head computed tomography (CT) scans in order to derive a statistical approximation of the soft tissue structure of a questioned skull. A core component of this tool is an algorithm for removing the variation in facial structure due to skeletal variation. This method uses models derived from the CT scans and does not require manual measurement or placement of landmarks. It does not require tissue-depth tables, can be tailored to specific racial categories by adding CT scans, and removes much of the subjectivity of manual reconstructions. 相似文献