全文获取类型
收费全文 | 589篇 |
免费 | 20篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 47篇 |
妇产科学 | 9篇 |
基础医学 | 68篇 |
口腔科学 | 19篇 |
临床医学 | 43篇 |
内科学 | 98篇 |
皮肤病学 | 4篇 |
神经病学 | 52篇 |
特种医学 | 4篇 |
外科学 | 67篇 |
综合类 | 8篇 |
预防医学 | 45篇 |
眼科学 | 52篇 |
药学 | 69篇 |
中国医学 | 2篇 |
肿瘤学 | 20篇 |
出版年
2023年 | 7篇 |
2022年 | 15篇 |
2021年 | 23篇 |
2020年 | 19篇 |
2019年 | 15篇 |
2018年 | 18篇 |
2017年 | 15篇 |
2016年 | 23篇 |
2015年 | 25篇 |
2014年 | 39篇 |
2013年 | 33篇 |
2012年 | 56篇 |
2011年 | 44篇 |
2010年 | 29篇 |
2009年 | 28篇 |
2008年 | 29篇 |
2007年 | 45篇 |
2006年 | 28篇 |
2005年 | 23篇 |
2004年 | 25篇 |
2003年 | 21篇 |
2002年 | 12篇 |
2001年 | 4篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1983年 | 1篇 |
1982年 | 4篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1976年 | 2篇 |
1972年 | 2篇 |
排序方式: 共有610条查询结果,搜索用时 15 毫秒
31.
32.
Kuldeep K. Bansal Jitendra Gupta Ari Rosling Jessica M. Rosenholm 《Saudi Pharmaceutical Journal》2018,26(3):358-368
Polymers from natural resources are attracting much attention in various fields including drug delivery as green alternatives to fossil fuel based polymers. In this quest, novel block copolymers based on renewable poly(δ-decalactone) (PDL) were evaluated for their drug delivery capabilities and compared with a fossil fuel based polymer i.e. methoxy-poly(ethylene glycol)-b-poly(ε-caprolactone) (mPEG-b-PCL). Using curcumin as a hydrophobic drug model, micelles of PDL block copolymers with different orientation i.e. AB (mPEG-b-PDL), ABA (PDL-b-PEG-b-PDL), ABC (mPEG-b-PDL-b-poly(pentadecalactone) and (mPEG-b-PCL) were prepared by nanoprecipitation method. The size, drug loading and curcumin stability studies results indicated that mPEG-b-PDL micelles was comparable to its counterpart mPEG-b-PCL micelles towards improved delivery of curcumin. Therefore, mixed micelles using these two copolymers were also evaluated to see any change in size, loading and drug release. Drug release studies proposed that sustained release can be obtained using poly(pentadecalactone) as crystalline core whereas rapid release can be achieved using amorphous PDL core. Further, mPEG-b-PDL micelles were found to be non-haemolytic, up to the concentration of 40?mg/mL. In vivo toxicity studies on rats advised low-toxic behaviour of these micelles up to 400?mg/kg dose, as evident by histopathological and biochemical analysis. In summary, it is anticipated that mPEG-b-PDL block copolymer micelles could serve as a renewable alternative for mPEG-b-PCL copolymers in drug delivery applications. 相似文献
33.
Sumitha Muthu Jitendra Jethani Sriram Annavajjhala Sneha Gupta Krati Gupta Pooja Khamar 《Indian journal of ophthalmology》2020,68(12):2835
Refractive surgeries are one of most commonly performed surgeries for correcting visual impairment due to refractive errors. With the increase in demand for refractive surgeries, there is an enormous strain on the operating surgeon for delivering ideal outcomes i.e 20/20 visual acuity. Regression, under-correction and ectasia are the most dreaded complications post-refractive correction, for the surgeon as well as the patient. They have significant effects on the quantity of the vision and most importantly on the quality of life of the patient. With the advent of digital era and jobs requiring the eyes being glued to the screen for hours there has been a surge in the patients presenting with complaints of asthenopia, glare, halos, and difficulty in focusing; pointing towards diagnosis of non-strabismic binocular vision anomalies (NSBVA). NSBVA in a postrefractive surgery patient may masquerade as regression or under-correction. However, timely diagnosis of NSBVA in such patients would prevent the greater harm caused by wrongful re-correction. Home- and office-based vision therapy results in improvement in visual acuity in a large majority of these patients. This preferred practice pattern intends to guide the refractive surgeons to diagnose and treat the postrefractive surgery NSBVA following a case-based and algorithmic approach. It also emphasizes the inclusion of the binocular vision assessment as a part of the pre-operative workup for patients undergoing refractive procedures. 相似文献
34.
Using data of the third round of the National Family Health Survey (NFHS) 2005-2006, this study examined the prevalence of overweight and obesity among women from different economic strata in urban India. The study used a separate wealth index for urban India constructed using principal components analysis (PCA). The result shows that prevalence of overweight and obesity is very high in urban areas, more noticeably among the non-poor households. Furthermore, overweight and obesity increase with age, education, and parity of women. The results of multinomial logistic regression show that non-poor women are about 2 and 3 times more at risk of being overweight and obese respectively. Marital status and media exposure are the other covariates associated positively with overweight and obesity. Thus, the growing demand which now appears before the Government or urban health planners is to address this rising urban epidemic with equal importance as given to other issues in the past.Key words: Body mass index, Economic status, Urban women, India 相似文献
35.
Saurabh Sagar Mehta Kishan Rees Lucy Cutler Jitendra Mangwani 《Indian Journal of Orthopaedics》2014,48(5):445-452
Ankle fracture (AF) is a common injury with potentially significant morbidity associated with it. The most common age groups affected are young active patients, sustaining high energy trauma and elderly patients with comorbidities. Both these groups pose unique challenges for appropriate management of these injuries. Young patients are at risk of developing posttraumatic osteoarthritis, with a significant impact on quality of life due to pain and impaired function. Elderly patients, especially with poorly controlled diabetes and osteoporosis are at increased risk of wound complications, infection and failure of fixation. In the most severe cases, this can lead to amputation and mortality. Therefore, individualized approach to the management of AF is vital. This article highlights commonly encountered complications and discusses the measures needed to minimize them when dealing with these injuries. 相似文献
36.
37.
Vikram A. Mhaskar Yogesh Jain Pankaj Soni Rajendra Fiske Jitendra Maheshwari 《Indian Journal of Orthopaedics》2022,56(2):312
BackgroundDrilling the femoral and tibial tunnels at their anatomical locations are critical for good outcomes and involve seeing the footprints well. We intended to compare two techniques of drilling the tunnels and the patient-reported outcomes and knee stability of patients undergoing single bundle ACL reconstruction using 3D CT to evaluate if the tunnels were anatomical or not.Materials and MethodsSixty single bundle ACL reconstructions were analyzed, 30 each with Technique A and B. Pre-operative and after a minimum 27 month follow-up Lysholm, IKDC, Tegner score, hop test, and Lachman test were noted. 3D CT was done to classify femoral tunnels positions as being well placed, slightly or grossly misplaced and tibial tunnels as optimal or suboptimal and compared.ResultsSixty ACL reconstructions had full follow-up with a mean follow-up of 34 months. There was no significant difference between tunnel positions between the two techniques. Well-placed femoral tunnel had better Lysholm score (62.2 ± 16.2 v/s 48.5 ± 17.2, p 0.002) and IKDC score (62.5 ± 14.3 v/s 52.7 ± 15.1, p 0.012).). Those who had their surgeries within 3 months of their injury had better hop test (4.4 ± 0.9 v/s 3.9 ± 1, p 0.034) and IKDC scores (62.5 ± 15.8 v/s 33.2 ± 13.8, p 0.026) as compared to those that had surgery done after 3 monthsConclusionTibial tunnel positions were optimal in most cases and did not differ between the two techniques. Well-placed femoral tunnels and surgeries done within 3 months of the injury produced best results. 相似文献
38.
Rakesh Waghmare Itta Krishna Chaaithanya Sarika Zala Jitendra Deshmukh Prashant Uikey Sarika Wankhede Tushar Palve Shyamkumar Sirsam Rohidas Chavan Manjushri Waikar Anil Humane Akash Khobragade Monika Akare Ritesh K. Sondawale Rajat Sharma Vrushali Nandre Prashant Howal Deepak N. Modi Smita D. Mahale Rahul K. Gajbhiye 《Indian journal of hematology & blood transfusion》2022,38(1):191
39.
Singanamalla Bhanudeep Mohandoss Vichithra Suthar Renu Ahuja Chirag Kamal Sahu Jitendra Kumar 《Indian journal of pediatrics》2020,87(6):466-467
Indian Journal of Pediatrics - 相似文献
40.
Thania?Sara?VargheseEmail author Vandana?Tripathy Jitendra?Kumar 《Proceedings of the National Academy of Sciences, India. Section B.》2018,88(2):547-551
A supervised field trial was conducted at Anand, Gujarat during 2015 to study the rate of degradation of imidacloprid in psyllium spikes following foliar application of imidacloprid formulation, Confidor 17.8 SL (soluble liquid) @ 25 (standard dose) and 50 (double dose) g a.i. ha?1. The Imidacloprid residues in psyllium spikes, herbage and soil samples were estimated on high performance liquid chromatograph. The method gave very good overall mean recoveries in the range of 80.37–102.58 %. The limit of detection and the limit of quantification were found to be 0.01 and 0.03 μg g?1, respectively. The initial deposits of 0.46 and 1.21 μg g?1 in psyllium spikes reached below determination level (BDL) of 0.03 μg g?1 on the 10th and 14th day at standard and double dose, respectively. The half life of imidacloprid in psyllium spikes ranged from 2.9 to 3.1 days. The residues in the soil and herbage samples collected at harvest were BDL (0.03 μg g?1) at either dose of application. 相似文献