全文获取类型
收费全文 | 1767篇 |
免费 | 321篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 58篇 |
妇产科学 | 281篇 |
基础医学 | 77篇 |
口腔科学 | 33篇 |
临床医学 | 849篇 |
内科学 | 178篇 |
皮肤病学 | 52篇 |
神经病学 | 14篇 |
特种医学 | 235篇 |
外科学 | 66篇 |
综合类 | 57篇 |
预防医学 | 90篇 |
眼科学 | 5篇 |
药学 | 45篇 |
肿瘤学 | 53篇 |
出版年
2024年 | 6篇 |
2023年 | 44篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 35篇 |
2019年 | 19篇 |
2018年 | 58篇 |
2017年 | 93篇 |
2016年 | 77篇 |
2015年 | 100篇 |
2014年 | 106篇 |
2013年 | 99篇 |
2012年 | 38篇 |
2011年 | 63篇 |
2010年 | 101篇 |
2009年 | 101篇 |
2008年 | 43篇 |
2007年 | 45篇 |
2006年 | 37篇 |
2005年 | 24篇 |
2004年 | 17篇 |
2003年 | 29篇 |
2002年 | 20篇 |
2001年 | 34篇 |
2000年 | 10篇 |
1999年 | 47篇 |
1998年 | 93篇 |
1997年 | 109篇 |
1996年 | 105篇 |
1995年 | 93篇 |
1994年 | 63篇 |
1993年 | 49篇 |
1992年 | 22篇 |
1991年 | 23篇 |
1990年 | 9篇 |
1989年 | 32篇 |
1988年 | 31篇 |
1987年 | 18篇 |
1986年 | 26篇 |
1985年 | 29篇 |
1984年 | 13篇 |
1983年 | 13篇 |
1982年 | 18篇 |
1981年 | 12篇 |
1980年 | 15篇 |
1979年 | 4篇 |
1978年 | 16篇 |
1977年 | 16篇 |
1976年 | 13篇 |
1975年 | 13篇 |
排序方式: 共有2096条查询结果,搜索用时 3 毫秒
101.
Margaret Fisher MSc PGDipHE BSc RM RN & Christine Webb PhD RN FRCN 《Learning in Health and Social Care》2009,8(1):33-46
Mentoring is a feature of most professional education programmes, although its purpose may vary. In some cases, a mentor performs solely a supporting role, while in others it may include assessment of practice competence. The aim of this study was to explore and prioritize the needs of midwifery mentors and investigate any relationship between these and duration of experience and/or level of qualification. A two-stage cross-sectional correlational study of 82 mentors was carried out in a maternity unit in the southwest of England. Content, univariate and bivariate analysis of the data were performed. The focus group identified 15 needs which formed the basis of the subsequent questionnaire. Overall ranking showed that 'guidance' and 'frequent shifts' were important to all mentors. Of least importance were 'choice in allocation' and 'involvement in selection'. Statistically significant findings emerged relating to mentors' academic level of qualification, background of direct entry or Registered Nurse, length of experience and place of work. The programme followed by the students also had an impact. Some of the conclusions were that mentors need more overt recognition of their role, breaks between students and consideration of their area of work and the type of student allocated. Tutors need to offer increased availability, support, guidance and feedback. Students should have frequent shifts rostered with their mentor and be encouraged to provide feedback. A 'mentor pyramid of needs' was developed which could be used by educators and managers to audit and prioritize mentor support. The findings of the study are of particular relevance in the context of recent regulatory body standards. 相似文献
102.
Kinta Beaver PhD MRes BA DPSN RGN David Jones MD FRCS † Shabbir Susnerwala MD FRCR ‡ Olive Craven MSc RGN RM Onc.Cert § Mary Tomlinson BA RGN ¶ Gary Witham BA RGN Onc.Cert PG.Cert Karen A Luker PhD BNurs FMedSci †† 《Health expectations》2005,8(2):103-113
OBJECTIVES: To explore patient views on participation in treatment, physical care and psychological care decisions and factors that facilitate and hinder patients from making decisions. DESIGN: Qualitative study using semi-structured interviews with patients. SETTING AND PARTICIPANTS: Three NHS Trusts in the north-west of England. Theoretical sampling including 41 patients who had been treated for colorectal cancer. RESULTS: For patients, participation in the decision-making process was about being informed and feeling involved in the consultation process, whether patients actually made decisions or not. The perceived availability of treatment choices (surgery, radiotherapy, chemotherapy) was related to type of treatment. Factors that impacted on whether patients wanted to make decisions included a lack of information, a lack of medical knowledge and trust in medical expertise. Patients perceived that they could have a more participatory role in decisions related to physical and psychological care. CONCLUSION: This study has implications for health professionals aiming to implement policy guidelines that promote patient participation and shared partnerships. Patients in this study wanted to be well informed and involved in the consultation process but did not necessarily want to use the information they received to make decisions. The presentation of choices and preferences for participation may be context specific and it cannot be assumed that patients who do not want to make decisions about one aspect of their care and treatment do not want to make decisions about other aspects of their care and treatment. 相似文献
103.
Kath Padgett BSc MA PGDip Cert Ed RMN Christine Rhodes BSc MSc RGN RM RN Child RHV Maureen Lumb Penny Morris BA Sue Sherwin BA MA PGCHE RMN Jools Symons BA MA Joannie Tate Ken Townend 《Health expectations》2014,17(3):418-428
Background Involving service users and carers in decisions about their health care is a key feature of health‐care practice. Professional health and social care students need to develop skills and attributes to best enable this to happen. Aims The aims were to explore service user and carer perceptions of behaviours, attributes and context required to enable shared decision making; to compare these perceptions to those of students and academic staff with a view to utilizing the findings to inform the development of student assessment tools. Methods A mixed methods approach was used including action learning groups (ALG) and an iterative process alongside a modified Delphi survey. Participants The ALGs were from an existing service user and carer network. The survey was sent to sixty students, sixty academics and 30 service users from 16 different professional disciplines, spanning four Universities in England. Results The collaborative enquiry process and survey identified general agreement that being open and honest, listening, showing respect, giving time and being up to date were important. The qualitative findings identified that individual interpretation was a key factor. An unexpected result was an insight into possible insecurities of students. Conclusions The findings indicate that distilling rich qualitative information into a format for student assessment tools could be problematic as the individual context could be lost, it is therefore proposed that the information could be better used as a learning rather than assessment tool. Several of those involved identified how they valued the process and found it beneficial. 相似文献
104.
Soo Downe BA RM MSc PhD Mick McKeown RGN RMN BA † Eileen Johnson BA PhD ‡ Comensus Community Involvement Team§ Comensus Advisory Group§ Lidia Koloczek BA BA MA PGCE ¶ Angela Grunwald Bsc Lisa Malihi-Shoja Bsc †† 《Health expectations》2007,10(4):392-406
OBJECTIVE: To develop and evaluate service user, carer and community involvement in health and social care education. BACKGROUND: Despite the high policy profile of involvement issues, there appear to be no published accounts of schemes that have used a systematic whole-faculty approach to community engagement in health and social care higher education. FOCUS OF THIS PAPER: The set up and early development of a faculty-wide community engagement project. SETTING AND PARTICIPANTS: Staff from the faculty of health in one University, local service users and carers and community group project workers and local National Health Service (NHS) and public sector staff. DESIGN: Participatory action research including document review, field notes, questionnaires and interviews. ANALYSIS: Thematic analysis. The emerging themes were tested by seeking disconfirming data, and through verification with stake-holders. RESULTS: Prior to the study, there were examples of community engagement in the participating faculty, but they occurred in specific departments, and scored low on the 'ladder of involvement'. Some previous attempts at engagement were perceived to have failed, resulting in resistance from staff and the community. Despite this, an advisory group was successfully formed, and project framing and development evolved with all stake-holders over the subsequent year. The four themes identified in this phase were: building accessibility; being 'proper' service users/carers;moving from suspicion to trust: mutually respectful partnerships as a basis for sustainable change; and responses to challenge and emergence. CONCLUSIONS: Successful and sustainable engagement requires authenticity. Many problems and solutions arising from authentic engagement are emergent, and potentially challenging to organizations. 相似文献
105.
MJ McKinley RM McAllen GL Pennington A. Smardencas RS Weisinger BJ Oldfield 《Clinical and experimental pharmacology & physiology》1996,23(Z3):99-104
- 1 Autoradiographic binding studies have shown that the AT1 receptor is the predominant angiotensin II (AngII) receptor subtype in the central nervous system (CNS). Major sites of AT1 receptors are the lamina terminalis, hypothalamic paraventricular nucleus, the lateral parabrachial nucleus, rostral and caudal ventrolateral medulla, nucleus of the solitary tract and the intermediolateral cell column of the thoraco-lumbar spinal cord.
- 2 While there are differences between species, AT2 receptors are found mainly in the cerebellum, inferior olive and locus coeruleus of the rat.
- 3 Circulating AngII acts on AT1 receptors in the subfornical organ and organum vasculosum of the lamina terminalis (OVLT) to stimulate neurons that may have a role in initiating water drinking.
- 4 Centrally administered AngII may act on AT1 receptors in the median preoptic nucleus and elsewhere to induce drinking, sodium appetite, a sympathetic vasoconstrictor response and vasopressin secretion.
- 5 Recent evidence shows that centrally administered AT1 antagonists inhibit dipsogenic, natriuretic, pressor and vasopressin secretory responses to intracerebroventricular infusion of hypertonic saline. This suggests that an angiotensinergic neural pathway has a role in osmoregulatory responses.
- 6 Central angiotensinergic pathways which include neural inputs to the rostral ventrolateral medulla may use AT1 receptors and play a role in the function of sympathetic pathways maintaining arterial pressure.
106.
d,l-15(R)-15-Methyl-PGF2α methyl ester 11-trimethylsilyl ether(II)wasprepared from selective monosilylation of d,l-15(R)-15-methyl-PGF2αmethyl ester(I) withtrimethylsilyldiethylamine in acetone. Oxidation of(II ) with Collin's reagent gave d,l-15(R)-15-methyl-PGE2 methyl ester 11-trimethylsilyl ether(III)which,without purification,was converted to d,l-15(R)-15-methyl-PGE2 methyl ester(IV)under mild acidic conditions. 相似文献
107.
108.
Weiping M. Tan MD PhD CCFP Michael C. Klein MD FAAP FCFP ABFP Lee Saxell RM MA Sahba Eftekhary Shirkoohy MD MPH MHA Getnet Asrat MD MHSc 《分娩》2008,35(3):220-229
ABSTRACT: Background: Current practice guidelines recommend active management of the third stage of labor. We compared practices of three maternity care provider disciplines in management of third‐stage labor and the justifications for their approach. Methods: This study is a cross‐sectional survey of maternity practitioners in usual practice settings in British Columbia. All 199 obstetricians, all 82 midwives, and a random sample of family physicians practicing intrapartum maternity care (one‐third, or 346) were surveyed The three main outcome measures by discipline were the method preferred in managing third‐stage labor, the reasons given for the chosen method, and views on the appropriateness of the current third‐stage labor guideline. Results: The overall response rate was 57.8 percent. Response rates indicating that the participants were “aware of guideline” were the following: obstetricians, 85.3 percent; family physicians, 53.7 percent; and midwives, 97.8 percent. Response rates indicating that the participants “agreed with guideline” were the following: obstetricians, 95.2 percent; family physicians, 97.6 percent; and midwives, 51.2 percent. Response rates indicating that “oxytocin should be given with anterior shoulder” were the following: obstetricians, 71.1 percent; family physicians, 68.3 percent; and midwives, 26.7 percent. Response rates indicating that “routine active management of third stage of labor should be the norm” were the following: obstetricians, 79.2 percent; family physicians, 60.2 percent; and midwives, 17 percent. All results were statistically significant (p < 0.01). Conclusions: A major difference was found between physicians and midwives in the management of third‐stage labor. Physicians routinely implemented active management of the third stage of labor; midwives preferred expectant approaches, principally based on women’s preference. Provincial data did not show differences in postpartum hemorrhage or transfusion rates by practitioner type. (BIRTH 35:3 September 2008) 相似文献
109.
110.
Ann Wilson RGN RM DipN RCNT RNT BA MPhil Nurse Tutor Richard Startup MA LLB PhD Senior Lecturer 《Journal of advanced nursing》1991,16(12):1478-1486
A comparative study was conducted of the professional socialization process of student nurses in three nurse education centres in South Wales. Patterns and problem areas can be identified of relevance to issues in role theory and with practical implications for the more effective implementation of Project 2000. Three cohorts of students were interviewed using a semi-structured interview schedule whilst in the introductory block and at the end of the first year. The teaching and ward staff directly involved in the socialization process were also interviewed so that their views could be compared with those of the students. There were differences between the types of ward in the opportunities they offered for role modelling. It was doubtful whether the three categories of students, teaching staff and ward staff were all employing a single conception of 'the good nurse'. The student has to find her own pathway through the divergent and often conflicting values and philosophies of the teaching staff and those in authority on the wards. It is recommended that a more unified approach be adopted to reduce the conflict which learners experience. In accordance with Project 2000, the teaching staff should act as practitioners and thereby be perceived as a professional role model with clinical credibility. 相似文献