2,693 papers found

Wear-free sliding between two contacted solid surfaces is the ultimate goal in the effort to extend the lifetime of mechanical devices, especially when it comes to inventing new types of micro-electromechanical systems where wear is often a major obstacle. Here we report experimental observations of wear-free sliding f…

Actinomycosis is an infrequent chronic progressive granulomatous and suppurative disease caused by Actinomyces israelii, a natural inhabitant of the gastrointestinal tract. We report a rare case of a 68-year-old man with primary endobronchial actinomycosis who presented in the emergency respiratory ward with massive he…

The imperative to re-analyze existing public sequencing data is central to modern biology, driven by new hypotheses and advanced analytical methods. However, this effort is critically hampered by the profound heterogeneity of repository data, particularly the non-standardized, free-text descriptions of biological exper…

BACKGROUND AND OBJECTIVES: The development of electronic editions of scientific journals and the rapid spread of scientific information might modify the pattern the bibliographic citations, and thus the impact factor and quality of journals. We assessed changes in the impact factor over years of a number of journals an…

MOTIVATION: Controlled vocabularies such as the Medical Subject Headings (MeSH) thesaurus and the Gene Ontology (GO) provide an efficient way of accessing and organizing biomedical information by reducing the ambiguity inherent to free-text data. Different methods of automating the assignment of MeSH concepts have been…

PURPOSE: To evaluate the validity of recorded diagnoses of ischemic cerebrovascular events requiring hospitalization within The Health Improvement Network (THIN) UK primary care database. METHODS: We identified 15 397 individuals aged 40-84 years with a first recorded ischemic event in 2000-2004. Of these, 4239 had a…

PURPOSE: To describe the effect that validation of venous thromboembolism (VTE) coded entries in the health improvement network (THIN) has on incidence rates of VTE among a cohort of rivaroxaban/warfarin users. METHODS: Among 36 701 individuals with a first prescription for rivaroxaban/warfarin between 2012 and…

Four large randomized trials to assess efficacy and toxicity of trastuzumab in adjuvant systemic therapy of breast cancer have been initiated. Results clearly demonstrate, that adjuvant treatment of trastuzumab significantly improves outcomes for women with HER2 positive breast cancer. The clinically most significant a…

Dengue fever, a rapidly expanding mosquito-borne viral disease, poses a significant global public health challenge due to complex transmission dynamics influenced by human behavior and environmental factors and continues its relentless global expansion, with approximately 390 million annual infections straining health…

Using a continuum evolution equation, we model the growth and evolution of quantum dots in the heteroepitaxial Ge on Si(0 0 1) system in a molecular beam epitaxy unit. We formulate our model in terms of evolution due to deposition, and due to surface diffusion which is governed by a free energy. This free…

OBJECTIVES: To test whether text message reminders sent to caregivers improve the effectiveness of a home micronutrient fortification program in western China. METHODS: We carried out a cluster-randomized controlled trial in 351 villages (clusters) in Shaanxi Province in 2013 and 2014, enrolling children aged 6 to 12…

OBJECTIVES: Substantial inequalities of health in various parts of Slovak Republic (SR) are observed. BACKGROUND: Our aim was to analyse the combination of sociological and medical aspects of these inequalities. METHODS: Sociological and mortality data from all 76 counties of SR were analysed by cluster analysis, ANO…

BACKGROUND: The goal of the first BioCreAtIvE challenge (Critical Assessment of Information Extraction in Biology) was to provide a set of common evaluation tasks to assess the state of the art for text mining applied to biological problems. The results were presented in a workshop held in Granada, Spain March 28-31, 2…

A report published in 2000 from the Institute of Medicine revealed that medical errors were a leading cause of patient deaths, and urged the development of error detection and reporting systems. The field of radiation oncology is particularly vulnerable to these errors due to its highly complex process workflow, the la…

OBJECTIVE: To evaluate the effectiveness of daily text messages as a means to improve caregivers' adherence to infant micronutrient powder (MNP) in rural Shaanxi Province of China. METHODOLOGY: 638 infants aged 6-11 months in 234 villages were involved in a cluster-randomized controlled trial (RCT). All caregivers wer…

Pilomatrixoma is a rare skin neoplasm which is usually localized on face, neck and lower extremites and its etiology is still unknown. We report a case of a 32-year-old male patient with a rare localisation of pilomatrixoma on the right shoulder. The presumed diagnosis was sebaceous cyst. Excision biopsy was performed…

BACKGROUND: Physicians frequently search PubMed for information to guide patient care. More recently, Google Scholar has gained popularity as another freely accessible bibliographic database. OBJECTIVE: To compare the performance of searches in PubMed and Google Scholar. METHODS: We surveyed nephrologists (kidney spe…

BACKGROUND: The volume of digital data in health care is continually growing. In addition to its use in health care, the health data collected can also serve secondary purposes, such as research. In this context, clinical data warehouses (CDWs) provide the infrastructure and organization necessary to enhance the second…

The 5G communication system has experienced a substantial expansion of the spectrum, which poses higher requirements to radio frequency (RF) filters in enhancing their operating frequencies and bandwidths. To this end, this work focused on solving the filtering scheme for challenging 5G n77 and n78 bands and successful…