Google Scholar (google + scholar)

Distribution by Scientific Domains
Distribution within Medical Sciences


Selected Abstracts


Using the internet to research hidden populations of illicit drug users: a review

ADDICTION, Issue 9 2010
Peter G. Miller
ABSTRACT Aims To review the current research of hidden populations of illicit drugs users using web-based methods and discuss major advantages and disadvantages. Methods Systematic review of 16 databases, including PubMed, PsycINFO (EBSCOhost), CSA Sociological Abstracts, Expanded Academic ASAP and Google Scholar. Findings Substances researched were most commonly ,party/club drugs' (such as ecstasy) and cannabis. All of the studies reviewed concluded that the internet is a useful tool for reaching hidden populations, but is likely to impose some bias in samples. Advantages include: access to previously under-researched target groups; speed; international applications; increased ease of data entry; and improved confidentiality for respondents. The major disadvantage is a lack of representativeness of samples. Conclusions Internet research is successful at accessing hidden populations of illicit drugs users, when appropriately targeted and provides unprecedented opportunities for research across a wide range of topics within the addictions field. Findings are unlikely to be generalisable to the general public, but appropriate for describing target populations. [source]


Downloads and citations in Intelligent Systems in Accounting, Finance and Management

INTELLIGENT SYSTEMS IN ACCOUNTING, FINANCE & MANAGEMENT, Issue 1-2 2009
Daniel E. O'Leary
This paper summarizes the papers downloaded most from the years 2000,2002 and traces the number of citations from Google Scholar (beta) for those papers at the beginning of 2008. It is found that the number of downloads and citations are highly correlated, suggesting that downloads is a leading indicator of citations, even years into the future. In addition, this paper assesses which of the papers from the journal have been cited most over the history of the journal, using both ISI,Social Science Citation Index and Google Scholar. It is found that the numbers of citations using both approaches are highly correlated. Copyright © 2009 John Wiley & Sons, Inc. [source]


The clinical effectiveness of length of bed rest for patients recovering from trans-femoral diagnostic cardiac catheterisation

INTERNATIONAL JOURNAL OF EVIDENCE BASED HEALTHCARE, Issue 4 2008
Sek Ying Chair RN MBA PhD
Background, Cardiac catheterisation plays a vital role in the diagnosis and evaluation of cardiac conditions. The goal of management of patients after cardiac catheterisation is to reduce the risk of development of any local or prolonged vascular complications, in particular bleeding and haematoma formation at the puncture site. Bed rest and immobilisation of the affected leg are recommended practices to ensure adequate haemostasis at the femoral arterial puncture site and prevent complications. Objectives, The objective of this review was to present the best available evidence for the optimal length of bed rest after trans-femoral diagnostic cardiac catheterisation. The main outcome of interest was the incidence of bleeding and haematoma formation following varying periods of bed rest. Search strategy, We searched the following databases: CINAHL, Medline, Cochrane Library, Current Contents, EBSCO, Web of Science, Embase, British Nursing Index, Controlled clinical trials database, Google Scholar. Reference lists of relevant articles and conference proceedings were searched. We also contacted key organisations and researchers in the field. Selection criteria, All randomised and quasi-randomised controlled trials that compared the effects of different lengths of bed rest following trans-femoral diagnostic cardiac catheterisation on patient outcomes were considered for inclusion in the review. Data collection and analysis, Eligibility of the trials for inclusion in the review, details of eligible trials and the methodological quality of the trials were assessed independently by two reviewers. Odds ratios (OR) for dichotomous data and a weighted mean difference for continuous data were calculated with 95% confidence intervals (CI). Where synthesis was inappropriate, trials were considered separately. Main results, Eighteen trials involving a total of 4294 participants were included in the review. One trial included three treatment groups. In seven trials among 747 people there was no significant difference in the incidence of bleeding following six or less than 6 h of bed rest (OR 1.47; 95% CI 0.60, 3.64). Likewise, there was no significant difference in the incidence of bleeding following bed rest at other time periods. In eight trials involving 2272 patients there was no significant difference in the incidence of haematoma formation following 6 or less than 6 h of bed rest (OR 0.82; 95% CI 0.59, 1.16). Significantly fewer patients randomised to less than 6 h of bed rest complained of back pain. The odds of developing back pain at 4 (OR 24.60; 95% CI 1.29, 469) and 24 h (OR 2.47; 95% CI 1.16, 5.23) following coronary catheterisation was significantly higher among patients randomised to 6 compared with 3 h of bed rest. Authors' conclusions, There is evidence of no benefit relating to bleeding and haematoma formation in patients who have more than 3 h of bed rest following trans-femoral diagnostic cardiac catheterisation. However, there is evidence of benefit relating to decreased incidence and severity of back pain and cost-effectiveness following 3 h of bed rest. There is suggestive but inconclusive evidence of a benefit from bed rest for 2 h following trans-femoral cardiac catheterisation. Clinicians should consider a balance between avoiding increased risk of haematoma formation following 2,2.5 h of bed rest and circumventing back pain following more than 4 h of bed rest. [source]


Consumers' views on generic medicines: A review of the literature

INTERNATIONAL JOURNAL OF PHARMACY PRACTICE, Issue 2 2009
Mohamed A. A. Hassali
Abstract Objectives To review the literature on consumers' knowledge, attitudes and opinions of the use of generic medicines. Method A narrative review of studies conducted from 1970 to 2008 on consumers' perceptions and views towards generic medicines was performed. An extensive literature search was undertaken using indexing services available at the authors' institution library. The following keywords were used for the search: brand, generic, multisource, medications, medicines, drugs, pharmaceuticals and consumers, customers, and patients. Electronic databases searched were Medline, Inside Web, ISI Web of Knowledge, Science Direct, Springer Link, JSTOR, Proquest, Ebsco Host and Google Scholar. These electronic databases were searched for full text papers published in English from 1970 to October 2008. Key findings Twenty studies were identified. Eleven were from the USA, four were from Europe, two were from Canada and one each was from Australia, Brazil and Malaysia. In general, consumers showed mixed reactions towards the use of generic medicines. This was evident from the divergence of views observed by country development level, consumers' socioeconomic characteristics, drug product characteristics, pharmaceutical reimbursement system, policy environment, contact with health care professionals, past experience with medications, and knowledge of the seriousness of a medical condition. Conclusions Patient confidence and knowledge pertaining to generic medicines use have increased over the past four decades, especially in developed countries. Mass educational efforts, financial incentives, and greater communication among patients and health care professionals were seen as major drivers to the uptake of generic medicines among consumers. [source]


Barriers to kidney transplants in Indonesia: a literature review

INTERNATIONAL NURSING REVIEW, Issue 1 2009
P.N. Bennett rn
Background:, People living with chronic kidney disease will require renal dialysis or a kidney transplant to maintain life. Although Indonesia has a developing healthcare industry, Indonesia's kidney transplant rates are lower than comparable nations. Purpose:, To explore the healthcare literature to identify barriers to kidney transplants in particular in relation to Indonesia. Methods:, Healthcare databases were searched (CINAHL, Medline, EBSCOhostEJS, Blackwell Synergy, Web of Science, PubMed, Google Scholar and Proquest 5000) using the search terms: transplant, kidney disease, renal, dialysis, haemodialysis, Indonesia and nursing. The search was limited to English and Indonesian language data sources from 1997 to 2007. Reference lists of salient academic articles were hand searched. Results:, The results of our search identified six articles that met our criteria. Costs are the major barrier to kidney transplant in Indonesia, followed by cultural beliefs, perception of the law, lack of information and lack of infrastructure. In addition, kidney disease prevention strategies are required. Conclusions:, There are many complex socio-economic, geographical, legal, cultural and religious factors that contribute to low kidney transplant rates in Indonesia. Although an increase in transplantation rates will require strategies from various agencies, healthcare professionals, including nurses, can play a role in overcoming some barriers. Community education programmes, improving their own education levels and by increasing empowerment in nursing we may contribute to improved kidney transplant rates in Indonesia. [source]


Learning for holistic care: addressing practical wisdom (phronesis) and the spiritual sphere

JOURNAL OF ADVANCED NURSING, Issue 6 2009
Helen L. Leathard
Abstract Title.,Learning for holistic care: addressing practical wisdom (phronesis) and the spiritual sphere. Aim., This paper is a discussion of practical wisdom (phronesis) and spirituality in holistic caring and strategies to facilitate their application in nurse education. Background.,Phronesis, with its inherent spiritual qualities, is an established aspect of the persona of excellent clinical leaders. There is a strong case for recognizing the value of this characteristic in all nurses, and a strategy is required for engendering the development of phronesis during nurse education. Data sources., Electronic searches of Google Scholar and CINAHL were conducted for English language publications in the period 1996,2008. Search terms included combinations of phronesis, spirituality, health, education, pharmacology, medicines and medication education, holistic care and spiritual care. Selection of items for inclusion was based on their pertinence to the arguments being developed and their value as leads to earlier material. Discussion., The links between the attributes of effective clinical leaders and those required for holistic caring are explicated and related to phronesis, the acquisition of which involves spiritual development. An explanatory account of phronesis and its applicability to nursing leads to an explanation of how its spiritual aspects in particular might be incorporated into learning for holistic care. Reference to research in medicines-related education illustrates how the principles can be applied in nurse education. Conclusion., Nursing quality could be enhanced if adequate opportunities for acquiring phronesis through experiential learning were provided in nursing curricula. Phronesis and spiritual care could be incorporated into existing models of nursing care or new models devised to use these critical concepts. [source]


How are new citation-based journal indicators adding to the bibliometric toolbox?

JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 7 2009
Loet Leydesdorff
The launching of Scopus and Google Scholar, and methodological developments in social-network analysis have made many more indicators for evaluating journals available than the traditional impact factor, cited half-life, and immediacy index of the ISI. In this study, these new indicators are compared with one another and with the older ones. Do the various indicators measure new dimensions of the citation networks, or are they highly correlated among themselves? Are they robust and relatively stable over time? Two main dimensions are distinguished,size and impact,which together shape influence. The h-index combines the two dimensions and can also be considered as an indicator of reach (like Indegree). PageRank is mainly an indicator of size, but has important interactions with centrality measures. The Scimago Journal Ranking (SJR) indicator provides an alternative to the journal impact factor, but the computation is less easy. [source]


Citation counting, citation ranking, and h -index of human-computer interaction researchers: A comparison of Scopus and Web of Science

JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 11 2008
Lokman I. Meho
This study examines the differences between Scopus and Web of Science in the citation counting, citation ranking, and h -index of 22 top human-computer interaction (HCI) researchers from EQUATOR,a large British Interdisciplinary Research Collaboration project. Results indicate that Scopus provides significantly more coverage of HCI literature than Web of Science, primarily due to coverage of relevant ACM and IEEE peer-reviewed conference proceedings. No significant differences exist between the two databases if citations in journals only are compared. Although broader coverage of the literature does not significantly alter the relative citation ranking of individual researchers, Scopus helps distinguish between the researchers in a more nuanced fashion than Web of Science in both citation counting and h -index. Scopus also generates significantly different maps of citation networks of individual scholars than those generated by Web of Science. The study also presents a comparison of h -index scores based on Google Scholar with those based on the union of Scopus and Web of Science. The study concludes that Scopus can be used as a sole data source for citation-based research and evaluation in HCI, especially when citations in conference proceedings are sought, and that researchers should manually calculate h scores instead of relying on system calculations. [source]


Is the prevalence of asthma declining?

ALLERGY, Issue 2 2010
Systematic review of epidemiological studies
To cite this article: Anandan C, Nurmatov U, van Schayck OCP, Sheikh A. Is the prevalence of asthma declining? Systematic review of epidemiological studies. Allergy 2010; 65: 152,167. Abstract Asthma prevalence has increased very considerably in recent decades such that it is now one of the commonest chronic disorders in the world. Recent evidence from epidemiological studies, however, suggests that the prevalence of asthma may now be declining in many parts of the world, which, if true is important for health service planning and also because this offers the possibility of generating and testing new aetiological hypotheses. Our objective was to determine whether the prevalence of asthma is declining worldwide. We undertook a systematic search of EMBASE, Medline, Web of Science and Google Scholar, for high quality reports of cohort studies, repeat cross-sectional studies and analyses of routine healthcare datasets to examine international trends in asthma prevalence in children and adults for the period 1990,2008. There were 48 full reports of studies that satisfied our inclusion criteria. The large volume of data identified clearly indicate that there are, at present, no overall signs of a declining trend in asthma prevalence; on the contrary, asthma prevalence is in many parts of the world still increasing. The reductions in emergency healthcare utilization being reported in some economically developed countries most probably reflect improvements in quality of care. There remain major gaps in the literature on asthma trends in relation to Africa and parts of Asia. There is no overall global downward trend in the prevalence of asthma. Healthcare planners will for the foreseeable future, therefore, need to continue with high levels of anticipated expenditure in relation to provision of asthma care. [source]


Omega 3 and 6 oils for primary prevention of allergic disease: systematic review and meta-analysis

ALLERGY, Issue 6 2009
C. Anandan
Background:, There is conflicting evidence on the use of omega 3 and omega 6 supplementation for the prevention of allergic diseases. We conducted a systematic review evaluating the effectiveness of omega 3 and 6 oils for the primary prevention of sensitization and development of allergic disorders. Methods:, We searched The Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, LILACS, PsycInfo, AMED, ISI Web of Science and Google Scholar for double-blind randomized controlled trials. Two authors independently assessed articles for inclusion. Meta-analyses were undertaken using fixed effects modelling, or random effects modelling in the event of detecting significant heterogeneity. Results:, Of the 3129 articles identified, 10 reports (representing six unique studies) satisfied the inclusion criteria. Four studies compared omega 3 supplements with placebo and two studies compared omega 6 supplements with placebo. There was no clear evidence of benefit in relation to reduced risk of allergic sensitization or a favourable immunological profile. Meta-analyses failed to identify any consistent or clear benefits associated with use of omega 3 [atopic eczema: RR = 1.10 (95% CI 0.78,1.54); asthma: RR = 0.81 (95% CI 0.53,1.25); allergic rhinitis: RR = 0.80 (95% CI 0.34,1.89) or food allergy RR = 0.51 (95% CI 0.10,2.55)] or omega 6 oils [atopic eczema: RR = 0.80 (95% CI 0.56,1.16)] for the prevention of clinical disease. Conclusions:, Contrary to the evidence from basic science and epidemiological studies, our systematic review and meta-analysis suggests that supplementation with omega 3 and omega 6 oils is probably unlikely to play an important role as a strategy for the primary prevention of sensitization or allergic disease. [source]


Nutritional and dietary influences on attention deficit hyperactivity disorder

NUTRITION REVIEWS, Issue 10 2008
Natalie Sinn
An abundance of research has investigated causes and treatments for attention deficit hyperactivity disorder (ADHD). The research includes identification of suboptimal levels of nutrients and sensitivities to certain foods and food additives. This review gives an overview of this research and provides an up-to-date account of clinical trials that have been conducted with zinc, iron, magnesium, Pycnogenol, omega-3 fatty acids, and food sensitivities. A literature search was conducted using PubMed, ISI Web of Knowledge, and Google Scholar and included studies published before April 2008. Although further research is required, the current evidence supports indications of nutritional and dietary influences on behavior and learning in these children, with the strongest support to date reported for omega-3s and behavioral food reactions. [source]


Pragmatic indicators for remote Aboriginal maternal and infant health care: why it matters and where to start

AUSTRALIAN AND NEW ZEALAND JOURNAL OF PUBLIC HEALTH, Issue 2010
Malinda Steenkamp
Abstract Objective: There are challenges in delivering maternal and infant health (MIH) care to remote Northern Territory (NT) communities. These include fragmented care with birthing in regional hospitals resulting in cultural and geographical dislocation for Aboriginal women. Many NT initiatives are aimed at improving care. Indicators for evaluating these for remote Aboriginal mothers and infants need to be clearer. We reviewed existing indicators to inform a set of pragmatic indicators for reporting improvement in remote MIH care. Methods: Scientific databases and grey literature (organisational websites and Google Scholar) were searched using the terms ,Aboriginal/maternal/infant/remote health/monitoring performance'. Key stakeholders identified omitted indicators sets. Relevant sets were reviewed and organised by indicator type, stage of patient journey, topic and theme. Results: Forty-two indicators sets were found. Seven focused on Aboriginal health, 23 on reproductive/maternal health, eight on child/infant health and four on other aspects, e.g. remote health. We identified more than 1,000 individual indicators. Of these, 656 were relevant for our purpose and were subsequently organised into 300 topics and 16 themes for antenatal, birth and postpartum, and infant care by indicator type. Conclusion: There are many measures for monitoring health care delivery to mothers and infants. Few are framed around remote MIH services, despite poorer health outcomes of remote mothers and infants and the specific challenges with providing care in this setting. Establishing relevant indicators is vital to support relevant data collection and the development of appropriate policy for remote Aboriginal maternal and infant care. [source]


Google Scholar and more , Edited by William Miller & Rita Pellen

BRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 3 2010
Ramesh C Sharma
No abstract is available for this article. [source]


A meta-analysis of the association between Caesarean section and childhood asthma

CLINICAL & EXPERIMENTAL ALLERGY, Issue 4 2008
S. Thavagnanam
Summary Background Children born by Caesarean section have modified intestinal bacterial colonization and consequently may have an increased risk of developing asthma under the hygiene hypothesis. The results of previous studies that have investigated the association between Caesarean section and asthma have been conflicting. Objective To review published literature and perform a meta-analysis summarizing the evidence in support of an association between children born by Caesarean section and asthma. Methods MEDLINE, Web Science, Google Scholar and PubMed were searched to identify relevant studies. Odds ratio (OR) and 95% confidence interval (CI) were calculated for each study from the reported prevalence of asthma in children born by Caesarean section and in control children. Meta-analysis was then used to derive a combined OR and test for heterogeneity in the findings between studies. Results Twenty-three studies were identified. The overall meta-analysis revealed an increase in the risk of asthma in children delivered by Caesarean section (OR=1.22, 95% CI 1.14, 1.29). However, in this analysis, there was evidence of heterogeneity (I2=46%) that was statistically significant (P<0.001). Restricting the analysis to childhood studies, this heterogeneity was markedly decreased (I2=32%) and no longer attained statistical significance (P=0.08). In these studies, there was also evidence of an increase (P<0.001) in the risk of asthma after Caesarean section (OR=1.20, 95% CI 1.14, 12.6). Conclusion In this meta-analysis, we found a 20% increase in the subsequent risk of asthma in children who had been delivered by Caesarean section. [source]


Volvulus of the sigmoid colon

COLORECTAL DISEASE, Issue 7Online 2010
V. Raveenthiran
Abstract Aims, The current status of sigmoid volvulus (SV) was reviewed to assess trends in management and to assess the literature. Method, The literature on SV was retrieved using PubMed, Embase, Scopus, Pakmedinet, African Journals online (AJOL), Indmed and Google scholar. These databases were searched for text words including ,sigmoid', ,colon' and ,volvulus'. Relevant nonindexed surgical journals published from endemic countries were also manually searched. We focused on original articles published within the last 10 years; but classical references prior to this period were also included. Seminal papers published in non-English languages were also included. Results, Sigmoid volvulus is a leading cause of acute colonic obstruction in South America, Africa, Eastern Europe and Asia. It is rare in developed countries such as USA, UK, Japan and Australia. Characteristic geographic variations in the incidence, clinical features, prognosis and comorbidity of SV justify recognition of endemic and sporadic subtypes. Controversy on aetiologic agents can be minimized by classifying them into ,predisposing' and ,precipitating' factors. Modern imaging systems, although more effective than plain radiographs, are yet to gain popularity. Emergency endoscopic reduction is the treatment of choice in uncomplicated patients. But it is only a temporizing procedure, and it should be followed in most cases by elective definitive surgery. Resection of the redundant sigmoid colon is the gold standard operation. The role of newer nonresective alternatives is yet to be ascertained. Although emergency resection with primary anastomosis (ERPA) has been controversial in the past, it is now increasingly accepted as a safe option with superior results. Management in elderly debilitated patients is extremely difficult. Paediatric SV significantly differs from that in adults. SV is frequently associated with neuropsychiatric diseases, diabetes mellitus and Chagas disease. The overall mortality in recent studies is < 5%. Conclusion, There are almost no randomised controlled studies. According to the grading system of Oxford Center for Evidence Based Medicine (CEVM), available published evidence is at level 4. The recommendations resulting form this review are of ,C' grade. [source]