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851.
The fetus is subjected to mechanical forces during labor and delivery, which may result in traumatic injuries. Such injuries include intracranial hemorrhage, spinal cord lesions, cephalhematoma, cranial or peripheral nerve palsies, intraabdominal organ rupture, or bony fractures. Risk for perinatal trauma and mortality is increased in primigravidas, multiple gestations, abnormal presentations, maternal-fetal disproportion, oligohydramnios, forceps or vacuum extractions, and internal version maneuvers. Very-low-birth-weight neonates (<1500 g) are at high risk due to ease of deformity of the cranium. Infants with certain congenital anomalies or pathologic processes that distort normal anatomy are also at increased risk, especially when a prenatal diagnosis is lacking. The authors present a case of a term gestation neonate who sustained a cervical spine dislocation fracture of C5-7, with subtotal transection of the spinal cord and resultant paralysis. The fetus was in vertex presentation, and a manual vaginal delivery was attempted. When the infant lodged in the birth canal following a difficult delivery of the head and arms, its enlarged abdomen was palpated, and the delivery was converted to an emergent cesarean section. The infant lived for 3 days and then expired due to neurologic complications of trauma sustained during the attempted vaginal delivery. Autopsy revealed a previously undiagnosed intraabdominal immature teratoma. The pathology of teratomas, the most common neonatal tumor and occasionally implicated in cases of birth trauma, will be addressed, followed by a review of the literature concerning birth trauma. 相似文献
852.
Dmitrieva OA Fedchenko TM Goncharenko DV Iurtaeva EA Pichugin AP 《Sudebno-meditsinskaia ekspertiza》2007,50(4):24-27
We studied the trend in the number of forensic-medical examinations in trials against obstetricians and gynecologists conducted in Primorsky Region in 1997-2005. Most typical defects in obstetric-gynecological care are characterized. These cases are analysed in terms of forensic-medical practice. Detection and forensic-medical analysis of the above defects contribute to optimization of the diagnosis and treatment both in obstetric-gynecological practice and in wide medical practice. 相似文献
853.
Prospective associations between violent victimization, the quality of the parent-adolescent relationship, and the subsequent
onset of violent aggression were examined. Using the National Longitudinal Study of Adolescent Health (Add Health), participants
were divided into violent and non-violent cohorts based on whether they had committed an act of violence prior to Wave 1.
Results showed that violent victimization at Wave 1 predicted the onset of violent aggression at Wave 2 for adolescents who
were non-violent at baseline. Earlier violent victimization, however, had no effect on aggression trajectories for baseline
violent adolescents. Parent-adolescent relations functioned as a protective buffer, such that violently victimized adolescents
who reported high quality relationships with parents were less likely to be involved in violent aggression at Wave 2. Subsequent
gender interaction analyses revealed that while the buffering effect was evident for males, parent-adolescent relations did
not protect females from the onset of aggressive behaviors. Findings are evaluated in light of social learning and cycle of
violence theories that highlight the role of violent victimization among adolescents.
相似文献
Jeffrey T. Cookston (Corresponding author)Email: |
854.
The accurate quantification of target DNA is an important step in the short tandem repeat analysis of forensic biological samples. By utilizing quantification data to control the amount of template DNA in the polymerase chain reaction (PCR), forensic scientists can optimize testing and minimize the consumption of limited samples. The ability to identify and quantify target DNA in mixed-species samples is crucial when it may be overwhelmed by nontarget DNA, as in cases of dog attack. We evaluated two quantitative real-time PCR assays for dynamic range, species specificity, and inhibition by humic acid. While both assays proved to be highly sensitive and discriminating, the Melanocortin-1 Receptor (MC1R) gene Taqman assay had the advantages of a shorter run time, greater efficiency, and safer reagents. In its application to forensic casework, the MC1R assay has been advantageous for quantifying dog DNA in a variety of mixed-species samples and facilitating the successful profiling of individual dogs. 相似文献
855.
Sudden death due to acute pancreatitis has been rarely determined. A review of 3305 autopsies performed between 1991 and 2001 at the Council of Forensic Medicine found 12 cases (0.36%) with sudden death due to acute hemorrhagic pancreatitis without symptoms. A history of chronic alcohol ingestion was obtained from family in four cases (33%), and no stones were found in the bile ducts or in the gall bladders. During the autopsies, hemorrhage and edema were localized on the head of the pancreas in three cases and the whole pancreas in nine cases. The most common extrapancreatic pathology was found in the lung including pulmonary edema, alveolar hemorrhage, pleural effusion, and pulmonary congestion. There was no correlation between pulmonary and pancreatic damage. It is suggested that the forensic pathologists who are dealing with sudden unexpected death must not ignore the examination of pancreatic and extrapancreatic regions to avoid missing acute pancreatitis. 相似文献
856.
Sowmya Kasetty B.D.S. M.D.S. M. Rammanohar B.D.S. M.D.S. T. Raju Ragavendra B.D.S. M.D.S. 《Journal of forensic sciences》2010,55(3):779-783
Abstract: Dental hard tissues are good candidates for age estimation as they are less destructive and procedures to determine age can be easily performed. Although cementum annulations and cementum thickness are important parameters in this regard, they are seldom used. This study was undertaken to review the methods, difficulties in execution of techniques, and accuracy of cementum thickness and annulations in estimating the age. Unstained and stained ground sections of tooth were used to measure cemental thickness and count cemental annulations based on which age was estimated and was compared with known age. Although there was positive relation between cemental thickness and annulations with age, only in 1–1.5% of cases, age could be predicted with accuracy. 相似文献
857.
Greg W. Cook Ph.D. Peter T. LaPuma Ph.D. Gary L. Hook Ph.D. Brian A. Eckenrode Ph.D. 《Journal of forensic sciences》2010,55(6):1582-1591
Abstract: Ion mobility spectrometry (IMS) is a valued field detection technology because of its speed and high sensitivity, but IMS cannot easily resolve analytes of interest within mixtures. Coupling gas chromatography (GC) to IMS adds a separation capability to resolve complex matrices. A GC‐IONSCAN® operated in IMS and GC/IMS modes was evaluated with combinations of five explosives and four interferents. In 100 explosive/interferent combinations, IMS yielded 21 false positives while GC/IMS substantially reduced the occurrence of false positives to one. In addition, the results indicate that through redesign or modification of the preconcentrator there would be significant advantages to using GC/IMS, such as enhancement of the linear dynamic range (LDR) in some situations. By balancing sensitivity with LDR, GC/IMS could prove to be a very advantageous tool when addressing real world complex mixture situations. 相似文献
858.
Lars Uhrenholt Ph.D. D.C. Lene W. T. Boel Ph.D. M.D. 《Journal of forensic sciences》2010,55(6):1598-1602
Abstract: Injuries to the upper cervical spine (UCS) are common in traumatic deaths and postmortem computed tomography (PMCT) may contribute to the forensic investigation. This study presents PMCT in comparison with autopsy in the examination of UCS injury. Thirteen consecutive cases with UCS fracture and/or cranio‐cervical dislocation were examined with PMCT and autopsy, and the findings were correlated. Neither of the techniques identified all UCS injuries. Fractures of atlas and axis were best visualized with PMCT whereas cranio‐cervical dislocation was better identified during autopsy. Serious injuries were present after both high‐ and low‐energy trauma. Medico‐legal autopsy in combination with PMCT produced a thorough evaluation of UCS injuries. By combining these procedures detailed investigations, including accident reconstruction and injury pattern analysis, can be performed. This study supports the routine application of PMCT, as a supplement to the medico‐legal autopsy of deaths with UCS injuries. 相似文献
859.
Dirk T. Van Der Meer D.M.D. Paula C. Brumit D.D.S. Bruce A. Schrader D.D.S. Stephen B. Dove D.D.S. M.S. David R. Senn D.D.S. 《Journal of forensic sciences》2010,55(6):1499-1503
Abstract: An online forensic dental identification exercise was conducted involving 24 antemortem–postmortem (AM–PM) dental radiograph pairs from actual forensic identification cases. Images had been digitally cropped to remove coronal tooth structure and dental restorations. Volunteer forensic odontologists were passively recruited to compare the AM–PM dental radiographs online and conclude identification status using the guidelines for identification from the American Board of Forensic Odontology. The mean accuracy rate for identification was 86.0% (standard deviation 9.2%). The same radiograph pairs were compared using a digital imaging software algorithm, which generated a normalized coefficient of similarity for each pair. Twenty of the radiograph pairs generated a mean accuracy of 85.0%. Four of the pairs could not be used to generate a coefficient of similarity. Receiver operator curve and area under the curve statistical analysis confirmed good discrimination abilities of both methods (online exercise = 0.978; UT‐ID index = 0.923) and Spearman’s rank correlation coefficient analysis (0.683) indicated good correlation between the results of both methods. Computer‐aided dental identification allows for an objective comparison of AM–PM radiographs and can be a useful tool to support a forensic dental identification conclusion. 相似文献
860.
Christopher T. Lowenkamp Alexander M. Holsinger Edward J. Latessa 《Journal of criminal justice》2010,38(4):368
Although traditional intensive supervision programs that have aimed at increasing control and surveillance in the community have not been shown to reduce recidivism, prior research indicates that intensive supervision programs that are based on a human service philosophy and provide treatment to offenders offer more promise. The current research examined the effectiveness of fifty-eight intensive supervision programs and sought to determine whether program philosophy and treatment integrity are associated with reductions in recidivism. The results indicated that both program philosophy and treatment integrity vary independently of one another and are related to the ability of programs to produce meaningful effects on recidivism. 相似文献