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81.
The estimation of bloodstain volume using fractal analysis of digital images of passive blood stains is presented. Binary digital photos of bloodstains of known volumes (ranging from 1 to 7 mL), dispersed in a defined area, were subjected to image analysis using FracLac V. 2.0 for ImageJ. The box-counting method was used to generate a fractal dimension for each trial. A positive correlation between the generated fractal number and the volume of blood was found (R(2) = 0.99). Regression equations were produced to estimate the volume of blood in blind trials. An error rate ranging from 78% for 1 mL to 7% for 6 mL demonstrated that as the volume increases so does the accuracy of the volume estimation. This method used in the preliminary study proved that bloodstain patterns may be deconstructed into mathematical parameters, thus removing the subjective element inherent in other methods of volume estimation. 相似文献
82.
Osteologists often rely on single measurements, such as humeral and femoral head diameters, to estimate sex, especially when skeletons are incomplete. Measurements of 237 Bass Donated Collection skeletons provide a means of distinguishing white American females from males based on a modern sample: humeral head, female mean 42.1 mm, male mean 49.0 mm; and femoral head, female mean 42.2 mm, male mean 48.4 mm. Probabilities that bones at 1-mm increments came from females (p(f)) are estimated (p(m) = 1 - p(f)). An overrepresentation of one sex in the skeletons that are examined influences the probability that a bone of a certain size is from a female or male. So, probabilities are also estimated for samples consisting of an unequal number of males and females. Sample composition has its greatest effect when one sex dominates the remains that are the subject of investigation. 相似文献
83.
84.
骨骺愈合程度作为推断青少年活体年龄的重要手段之一,在相关鉴定中得到了广泛的应用.随着技术发展,国内外众多学者利用骨骺愈合程度推断年龄的研究取得了很多成果,本文针对根据骨骺愈合程度推断年龄的方法的产生、发展、研究成果以及有待解决的问题等进行综述,以期为相关研究和实践提供参考. 相似文献
85.
Jennifer Vansteenkiste 《Development in Practice》2014,24(1):18-29
This paper examines the social and gender politics of a women's urban garden project supported by the International Organisation of Migration, in Cap Haitien, Haiti. My study highlights how the development process created an unmonitored symbolic space where society's normalised gender processes reproduced broader social inequalities, which, in turn, prevented the project from meeting the women's practical and strategic goals. Then, I discuss how the ecohealth approach, as an alternative design framework, could make symbolic space visible to be critically engaged and analysed by participants, to account for gender process, and create an emancipatory activity. 相似文献
86.
Endogenous African governance systems are criticised for excluding women. This critique ignores several realities that women have played roles different from those of men. This article examines the roles that women play in endogenous governance structures of patrilineal and matrilineal ethnic groups in rural areas in Malawi on leadership, violent conflict prevention, and transformation. It argues that these endogenous governance systems inherently contain features that enable women to actively participate and play powerful leadership roles, though men dominate in terms of numbers and authority. These gender patterns do not seem to change much despite the changing political, social, and economic environment. 相似文献
87.
H.M. Ashraf Ali 《Development in Practice》2014,24(3):327-338
Using data from a recent ethnographic research project on microcredit, power, and poverty in the Chittagong Hill Tracts in Bangladesh, this article demonstrates that the relationship of women with both NGOs and male relatives is one of dependency and subordination. Gendered power relations, embedded in NGO practices and socio-cultural gender norms, influence the female borrowers to accept the domination of the fieldworkers and their male relatives. This article examines how and why NGOs create power inequalities between fieldworkers and female borrowers, why the fieldworkers dominate a group of women, and why these women continue to participate in microcredit programmes. 相似文献
88.
Amy Z. Mundorff Ph.D. Eric J. Bartelink Ph.D. Turhon A. Murad Ph.D. 《Journal of forensic sciences》2014,59(4):891-897
Previous research has demonstrated significant sexual dimorphism in friction ridge skin characteristics. This study uses a novel method for measuring sexual dimorphism in finger ridge breadths to evaluate its utility as a sex estimation method from an unknown fingerprint. Beginning and ending in a valley, the width of ten parallel ridges with no obstructions or minutia was measured in a sample of 250 males and females (N = 500). The results demonstrate statistically significant differences in ridge breadth between males and females (p < 0.001), with classification accuracy for each digit varying from 83.2% to 89.3%. Classification accuracy for the pooled finger samples was 83.9% for the right hand and 86.2% for the left hand, which is applicable for cases where the digit number cannot be determined. Weight, stature, and to a lesser degree body mass index also significantly correlate with ridge breadth and account for the degree of overlap between males and females. 相似文献
89.
Alexandra E. Wink M.S. 《Journal of forensic sciences》2014,59(3):696-702
Skeletal age estimation using the pubic symphysis is a reliable and popular practice among forensic anthropologists. In instances in which accessing the skeleton is impossible, such as in the case of living individuals, three‐dimensional (3D) reconstructions of computed tomography (CT) scans can be created and analyzed for aspects of the biological profile. This study examined 3D reconstructions of pelvic CT scans of a sample of 44 live adults to estimate age using the Suchey–Brooks J Hum Evol 1990;5(3):227‐38 method. Images were created using OsiriX software (Pixmeo, Geneva, Switzerland). Estimated age ranges based on the 3D‐CT images captured the true age of the individual at the time of the CT scan 79.5% of the time with good intra‐observer reliability. The features best visualized on the 3D images included the ossific nodule and the pubic symphyseal rim. This study shows that clinical CT scanning parameters are adequate for creating 3D images to be analyzed for age using the pubic symphysis. 相似文献
90.