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61.
Parkash Mandhan Kamal Osman Hassan Sandra Moustafa Samaan Mansour J Ali 《African Journal of Paediatric Surgery》2015,12(3):193-196
Visceral basidiobolomycosis is an unusual fungal infection of viscera caused by saprophyte Basidiobolus ranarum. It is very rare in healthy children and poses a diagnostic challenge due to the non-specific clinical presentation and the absence of predisposing factors. We report a case of gastrointestinal basidiobolomycosis in a 4-year-old healthy girl who presented with a short history of abdominal pain, bleeding per rectum, fever, and weight loss. The diagnosis was based on high eosinophilic count, classical histopathology findings of fungal hyphae (the Splendore-Hoeppli phenomenon), and positive fungal culture from a tissue biopsy. Fungal infection was successfully eradicated with a combined approach of surgical resection of the infected tissue and a well-monitored course of antifungal therapy. The atypical clinical presentation, diagnostic techniques, and the role of surgery in the management of a rare and lethal fungal disease in an immunocompetent child are discussed.Key words: Basidiobolomycosis, child, fungal infection, gastrointestinal, immunocompetent 相似文献
62.
Summary The purpose of this study was to determine the effectiveness and tolerability of norfloxacin, cinoxacin and oxolinic acid in the treatment of urinary tract infections (UTI) in comparison to nalidixic acid. 125 patients were given the drugs in the appropriate doses for 10–14 days and 30 patients were treated for six weeks. Clinical, bacteriological, hematological and chemical checks were made on all patients before and after treatment. It was found that norfloxacin, cinoxacin and oxolinic acid are safe and effective againstEscherichia coli, Klebsiella andProteus, the commonly encountered organisms in urinary tract infections. The cure rate for norfloxacin was 93%, for cinoxacin 83%, for oxolinic acid 80% and for nalidixic acid 70% in the short course. However, these differences were not statistically significant. Oxolinic acid, cinoxacin and norfloxacin have the advantage over nalidixic acid of being administered only twice daily.
Erfahrung mit Nalidixinsäure, Oxolinsäure, Cinoxacin und Norfloxacin bei der Behandlung von Harnwegsinfektionen — Wirksamkeit und Sicherheit
Zusammenfassung In der vorliegenden Studie sollte die Wirksamkeit und Verträglichkeit von Norfloxacin, Cinoxacin und Oxolinsäure im Vergleich zu Nalidixinsäure bei der Behandlung von Harnwegsinfektionen geprüft werden. 125 Patienten erhielten die Medikamente in den entsprechenden Dosen 10 bis 14 Tage lang, 30 Patienten wurden über sechs Wochen behandelt. Klinische, bakteriologische, hämatologische und biochemische Untersuchungen wurden bei allen Patienten vor und nach Behandlung vorgenommen. Norfloxacin, Cinoxacin und Oxolinsäure erwiesen sich als sicher und wirksam gegen Infektionen mitEscherichia coli, Klebsiella undProteus, die üblichen Erreger der Harnwegsinfektionen. Die Heilungsrate für Norfloxacin betrug 93%, für Cinoxacin 83%, für Oxolinsäure 80% und für Nalidixinsäure 70% bei der kürzeren Therapiedauer. Die gefundenen Unterschiede waren jedoch statistisch nicht signifikant. Oxolinsäure, Cinoxacin und Norfloxacin haben gegenüber Nalidixinsäure den Vorteil, daß sie nur zweimal täglich verabreicht werden müssen.相似文献
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64.
Osman Ekinci Süheyla Abitagaoglu Güldem Turan Zübeyir Sivrikaya Gül?en Bosna Asu ?zgultekin 《Saudi medical journal》2015,36(4):432-436
Objectives:
To compare the insertion time, ease of device insertion, ease of gastric tube insertion, airway leakage pressure, and complications between the laryngeal mask airway (LMA) ProSeal (P-LMA) and I-gel (I-gel) groups.Methods:
Eighty patients with age range 18-65 years who underwent elective surgery were included in the study. The study took place in the operation rooms of Haydarpaşa Numune Hospital, Istanbul, Turkey from November 2013 to April 2014. Patients were equally randomized into 2 groups; the I-gel group, and the P-LMA group. In both groups, the same specialist inserted the supraglottic airway devices. The insertion time of the devices, difficulty during insertion, difficulty during gastric tube insertion, coverage of airway pressure, and complications were recorded.Results:
The mean insertion time in the I-gel group was significantly lower than that of the P-LMA group (I-gel: 8±3; P-LMA: 13±5 s). The insertion success rate was higher in the I-gel group (100%, first attempt) than in the P-LMA group (82.5%, first attempt). The gastric tube placement success rate was higher in the I-gel group (92.5%, first attempt) than in the P-LMA group (72.5%, first attempt). The airway leakage pressures were similar.Conclusion:
Insertion was easier, insertion time was lower, and nasogastric tube insertion success was higher with the I-gel application, and is, therefore, the preferred LMA.Laryngeal mask airways (LMA) represent a good alternative to endotracheal intubation in suitable cases. The LMAs are used to provide ventilation, or to ease the insertion of an endotracheal tube (TT) in difficult airways, but they are also becoming more frequently used to reduce TT associated complications.1 In particular, the recently developed models of LMAs, which include a gastric tube, have become more commonly preferred in anesthesia applications.2 The I-gel (I-gel) (Intersurgical Ltd, Workingham, UK) has a latex-free, non-inflatable, gel-like, thermoplastic elastomeric cuff that provides easy coverage by properly fitting the anatomy of the supraglottic region and also involves a gastric tube; therefore, it has become more frequently used in patients under general anesthesia and receiving positive pressure ventilation.3 It has been reported that the single-use, inflatable cuff-free I-gel can be inserted more easily and has a reduced morbidity rate.4,5 It is recommended in emergency cases requiring intubation, and particularly in airway management of cases experiencing cardiopulmonary arrest.6 Another supraglottic airway device that enables gastric aspiration is the LMA ProSeal (Laryngeal Mask Company Ltd, Berkshire, UK). Since it is a semi-rigid device with an inflatable cuff, it has been reported to cause mucosa and nerve damage in the supraglottic region, sore throat, and hoarseness due to the cuff pressure.7The present study aimed to compare the I-gel and the LMA ProSeal (P-LMA) with respect to the duration of insertion, ease of insertion, airway pressure leakage, gastric tube insertion success ratio, and complications. 相似文献65.
Hopanoid lipids compose the Frankia vesicle envelope, presumptive barrier of oxygen diffusion to nitrogenase 下载免费PDF全文
Berry AM Harriott OT Moreau RA Osman SF Benson DR Jones AD 《Proceedings of the National Academy of Sciences of the United States of America》1993,90(13):6091-6094
Biological nitrogen fixation in aerobic organisms requires a mechanism for excluding oxygen from the site of nitrogenase activity. Oxygen exclusion in Frankia spp., members of an actinomycetal genus that forms nitrogen-fixing root-nodule symbioses in a wide range of woody Angiosperms, is accomplished within specialized structures termed vesicles, where nitrogen fixation is localized. The lipidic vesicle envelope is apparently a functional analogue of the cyanobacterial heterocyst envelope, forming an external gas-diffusion barrier around the nitrogen-fixing cells. We report here that purified vesicle envelopes consist primarily of two hopanoid lipids, rather than of glycolipids, as is the case in cyanobacteria. One envelope hopanoid, bacteriohopanetetrol phenylacetate monoester, is vesicle-specific. The Frankia vesicle envelope thus represents a layer specific to the locus of nitrogen fixation that is biosynthetically uniquely derived. 相似文献
66.
Purpose
The present study’s purpose was to examine the size and location of the thyroid gland using anatomic dissection methods on fetal cadavers.Methods
This study was performed on 200 spontaneously aborted human fetuses (100 males and 100 females) aged between 9 and 40 weeks of gestation. Fetuses without any external and internal pathology or anomaly were included in this study. Fetuses were divided into four groups based on gestational ages as follows: first group 9–12 weeks (first trimester), second group 13–25 weeks (second trimester), third group 26–37 weeks (third trimester) and fourth group 38–40 weeks (full term). The fetuses were also grouped into monthly cohorts as follows: 9–12 weeks, 3rd month; 13–16 weeks, 4th month; 17–20 weeks, 5th month; 21–24 weeks, 6th month; 25–28 weeks, 7th month; 29–32 weeks, 8th month; 33–36 weeks, 9th month; and 37–40 weeks, 10th month. The anterior necks of fetuses were dissected and the thyroid glands exposed. Vertebral and laryngeal levels and the dimensions (width, length, thickness and weight) of the fetal thyroid glands were determined by anatomical dissection methods. The dimensions and ratios of the fetal thyroid gland (weight/fetal body weight) were evaluated.Results
The mean values and standard deviations of all parameters by gestational weeks, months, and trimesters were calculated. It was found that all parameters increased with gestational age. No significant differences were observed between genders in all parameters (P > 0.05). There were no significant differences between the right and the left sides for parameters of the thyroid glands. The levels of the superior poles of the thyroid lobes were located at the cervical (C) C1–C3 vertebral bodies. The levels of the inferior poles of the thyroid lobes were located at C4–C5 vertebral bodies. The levels of the superior poles of thyroid lobes were located between the upper ½ and lower ½ of the thyroid cartilage or cricoid cartilage. The levels of the inferior poles of the thyroid lobes were located between the second and sixth tracheal rings. The distance between the superior poles of the thyroid gland and the hyoid bone increased throughout the fetal period. The dimensions of fetal thyroid glands increased with gestational age. The ratio between thyroid gland weights and fetal body weights was unchanged during the fetal period.Conclusions
We believe that the results obtained from this study will be useful in monitoring thyroid glands in the intrauterine period as well as recognizing early diagnosis and treatment of thyroid anomalies. It will also contribute to future studies in obstetrics, perinatology, and fetopathology. 相似文献67.
Huizhi Sun Osman Ahmed Zelekew Xiaoyun Chen Yuanbo Guo Dong-Hau Kuo Qingxin Lu Jinguo Lin 《RSC advances》2019,9(55):31828
A novel copper–vanadium bimetallic oxysulfide (CuVOS) nanoparticle catalyst was successfully synthesized by a facile method. The samples were characterized by X-ray photoelectron spectrometry (XPS), X-ray diffractometry (XRD), field-emission scanning electron microscopy (FE-SEM), UV-Vis diffuse spectroscopy (DRS), Fourier transform infrared spectroscopy (FTIR), and N2 adsorption–desorption isotherms. In order to check the catalytic efficiencies toward reduction reaction, 4-nitrophenol (4-NP) and other organic dyes such as rhodamine-B (RhB), methylene blue (MB), and methyl orange (MO) were used. The results showed that the CuVOS prepared in the presence of a suitable amount of N2H4 during the synthesis of the nanoparticles exhibited the fastest reduction capabilities by using NaBH4 as a reducing agent. It was demonstrated that a 100 mL 4-NP (20 ppm) solution was completely reduced by 5 mg CuVOS-3 within 2 min. Moreover, the complete reduction of 100 mL of MO, RhB, and MB solutions of 100 ppm was also achieved by 5 mg CuVOS-3 within 2 min, 6 min, and 5 min, respectively. Hence, the CuVOS is an efficient catalyst for reducing 4-NP and organic dyes and can have great potential for industrial application.A novel CuVOS catalyst was successfully synthesized by a facile method. The CuVOS with optimum amount of N2H4 had higher catalytic activity. 相似文献
68.
The general utility of the planarian Schmidtea mediterranea, an organism with remarkable regenerative capacity, was investigated as a convenient three‐dimensional model to analyse the import of cell‐penetrating peptides (CPPs) and bioportides (bioactive CPPs) into complex tissues. The unpigmented planarian blastema, 3 days post head amputation, is a robust platform to assess the penetration of red‐fluorescent CPPs into epithelial cells and deeper tissues. Three planarian proteins, Ovo, ZicA and Djeya, which collectively control head remodelling and eye regeneration following decapitation, are a convenient source of novel cationic CPP vectors. One example, Djeya1 (RKLAFRYRRIKELYNSYR), is a particularly efficient and seemingly inert CPP vector that could be further developed to assist the delivery of bioactive payloads across the plasma membrane of eukaryotic cells. Eye regeneration, following head amputation, was utilized in an effort to identify bioportides capable of influencing stem cell‐dependent morphogenesis. These investigations identified the tetradecapeptide mastoparan (INLKALAALAKKIL) as a bioportide able to influence the gross morphology of head development. We conclude that, compared with cellular monolayers, the S. mediterranea system provides many advantages and will support the identification of bioportides able to selectively modify the biology of totipotent neoblasts and, presumably, other mammalian stem cell types. 相似文献
69.
70.
Osman Turak Uğur Canpolat Fırat Özcan Çağrı Yayla Mehmet Ali Mendi Fatih Öksüz Duran Tok Derya Tok Kumral Çağlı Zehra Gölbaşı 《Thrombosis research》2014