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Evgeny A Kuzmin
The article presents data on the corporate survival rate in Russia in 1991-2014. The empirical survey was based on a random sample with the average number of non-repeated observations (number of companies) for the survey each year equal to 75,958 (24,236 minimum and 126,953 maximum). The actual limiting mean error ∆ p was 2.24% with 99% integrity. The survey methodology was based on a cross joining of various formal periods in the corporate life cycles (legal and business), which makes it possible to talk about a conventionally active time life of companies' existence with a number of assumptions...
February 2018: Data in Brief
Jennifer A Bunn, James W Navalta, Charles J Fountaine, Joel D Reece
Wearable physical activity trackers are a popular and useful method to collect biometric information at rest and during exercise. The purpose of this systematic review was to summarize recent findings of wearable devices for biometric information related to steps, heart rate, and caloric expenditure for several devices that hold a large portion of the market share. Searches were conducted in both PubMed and SPORTdiscus. Filters included: humans, within the last 5 years, English, full-text, and adult 19+ years...
2018: International Journal of Exercise Science
Iracema Caballero, Massimo Sammito, Claudia Millán, Andrey Lebedev, Nicolas Soler, Isabel Usón
ARCIMBOLDO solves the phase problem by combining the location of small model fragments using Phaser with density modification and autotracing using SHELXE. Mainly helical structures constitute favourable cases, which can be solved using polyalanine helical fragments as search models. Nevertheless, the solution of coiled-coil structures is often complicated by their anisotropic diffraction and apparent translational noncrystallographic symmetry. Long, straight helices have internal translational symmetry and their alignment in preferential directions gives rise to systematic overlap of Patterson vectors...
March 1, 2018: Acta Crystallographica. Section D, Structural Biology
Jinbo Chen, Uwe Scholz, Ruonan Zhou, Matthias Lange
In order to access and filter content of life-science databases, full text search is a widely applied query interface. But its high flexibility and intuitiveness is paid for with potentially imprecise and incomplete query results. To reduce this drawback, query assistance systems suggest those combinations of keywords with the highest potential to match most of the relevant data records. Widespread approaches are syntactic query corrections that avoid misspelling and support expansion of words by suffixes and prefixes...
March 12, 2018: PLoS Computational Biology
John Phair, John Denesopolis, Evan C Lipsitz, Larry Scher
OBJECTIVE: To analyze malpractice litigation trends and to better understand the causes and outcomes of suits involving inferior vena cava filters (IVCF) to prevent future litigation and improve physician education. METHODS: Jury verdict reviews from the WESTLAW database from January 1st 2000 to December 31st 2015 were reviewed. The search term "inferior vena cava filter" was used to compile data on the demographics of the defendant, plaintiff, allegation, complication, and verdict...
March 8, 2018: Annals of Vascular Surgery
Ana Carolina Corrêa Café, Carlos Alexandre de Oliveira Lopes, Rommel Larcher Rachid Novais, Wendell Costa Bila, Daniely Karoline da Silva, Márcia Christina Caetano Romano, Joel Alves Lamounier
OBJECTIVE: To systematize literature references addressing the association of sugar-sweetened beverage (SSB) and milk intake with body mass index (BMI) in adolescents. DATA SOURCE: A search was carried out in PubMed (US National Library of Medicine National Institutes of Health) and BVS (Virtual Library in Health). The descriptors used were: adolescents, young adult, beverages, drinking, obesity, overweight, BMI, and nutritional status. The following filters were applied: age ranging from 10 to 19 years, studies published in Portuguese or English language between 2011-2015...
January 2018: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
Runmin Yang, Daming Zhu, Qiang Kou, Poomima Bhat-Nakshatri, Harikrishna Nakshatri, Si Wu, Xiaowen Liu
Database search is the main approach for identifying proteoforms using top-down tandem mass spectra. However, it is extremely slow to align a query spectrum against all protein sequences in a large database when the target proteoform that produced the spectrum contains post-translational modifications and/or mutations. As a result, efficient and sensitive protein sequence filtering algorithms are essential for speeding up database search. In this paper, we propose a novel filtering algorithm, which generates spectrum graphs from subspectra of the query spectrum and searches them against the protein database to find good candidates...
November 2017: Proceedings
Pavlos Texakalidis, Alexandros Letsos, Damianos G Kokkinidis, Dimitrios Schizas, Georgios Karaolanis, Stefanos Giannopoulos, Spyridon Giannopoulos, Konstantinos P Economopoulos, Christos Bakoyannis
OBJECTIVE: Proximal embolic protection devices (P-EPD) and distal filters (DF) are used to prevent distal cerebral embolizations during carotid artery stenting (CAS). We compared their comparative effectiveness in regards to prevention of intraprocedural and periprocedural adverse events, including ischemic lesions (ipsilateral and contralateral), stroke, transient ischemic attacks (TIA) and death. We also compared the combination of the two neuroprotection strategies vs. a single strategy in regards to ischemic lesions and stroke...
December 27, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
Katherine Tan, Mei Chan Chong, Pathmawathy Subramaniam, Li Ping Wong
BACKGROUND: Outcome Based Education (OBE) is a student-centered approach of curriculum design and teaching that emphasize on what learners should know, understand, demonstrate and how to adapt to life beyond formal education. However, no systematic review has been seen to explore the effectiveness of OBE in improving the competencies of nursing students. OBJECTIVE: To appraise and synthesize the best available evidence that examines the effectiveness of OBE approaches towards the competencies of nursing students...
February 5, 2018: Nurse Education Today
Sam Brooks, Namita Biala, Sage Arbor
BACKGROUND: Medical school curricula strives to teach as much material as can be retained in a limited amount of time. A common "gold standard" resource used building curricula are medical objectives suggested by national societies. Unfortunately these objectives suffer from several functional limitations such as limited accessibility to society members, non-searchable formats (such as nested tables or pdf images), and inability to compare and search across societal objectives for redundancy or gaps...
March 2, 2018: BMC Medical Education
Mohammad K Ebrahimpour, Hossein Nezamabadi-Pour, Mahdi Eftekhari
Recently, advances in bioinformatics lead to microarray high dimensional datasets. These kinds of datasets are still challenging for researchers in the area of machine learning since they suffer from small sample size and extremely large number of features. Therefore, feature selection is the problem of interest in the learning process in this area. In this paper, a novel feature selection method based on a global search (by using the main concepts of divide and conquer technique) which is called CCFS, is proposed...
February 17, 2018: Computational Biology and Chemistry
Chunyu Hou, Yuan Li, Huiqin Liu, Mengjiao Dang, Guoxuan Qin, Ning Zhang, Ruibing Chen
Background: Protein kinase C ζ (PKCζ), an isoform of the atypical protein kinase C, is a pivotal regulator in cancer. However, the molecular and cellular mechanisms whereby PKCζ regulates tumorigenesis and metastasis are still not fully understood. In this study, proteomics and bioinformatics analyses were performed to establish a protein-protein interaction (PPI) network associated with PKCζ, laying a stepping stone to further understand the diverse biological roles of PKCζ. Methods: Protein complexes associated with PKCζ were purified by co-immunoprecipitation from breast cancer cell MDA-MB-231 and identified by LC-MS/MS...
2018: Proteome Science
Haydar Aslan Gülbitti, Britt Colebunders, Ali Pirayesh, Dario Bertossi, Berend van der Lei
BACKGROUND: In 2006, Villa et al. published a review article concerning the use of thread-lift sutures and concluded that the technique was still in its infancy but had great potential to become a useful and effective procedure for nonsurgical lifting of sagged facial tissues. As 11 years have passed, the authors now performed again a systematic review to determine the real scientific current state of the art on the use of thread-lift sutures. METHODS: A systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using the PubMed database and using the Medical Subject Headings search term "Rhytidoplasty...
March 2018: Plastic and Reconstructive Surgery
Vanessa Rioli, Emer S Ferro
Researchers are always searching for novel biologically active molecules including peptides. With the improvement of equipment for electrospray mass spectrometry, it is now possible to identify hundreds of novel peptides in a single run. However, after identifying the peptide sequences it is expensive to synthesize all the peptides to perform biological activity assays. Here, we describe a substrate capture assay that uses inactive oligopeptidases to identify putative biologically active peptides in complexes peptide mixtures...
2018: Methods in Molecular Biology
Pramod Kumar Maurya, Swati Singh, Ashutosh Mani
Antibiotic resistance is increasing rapidly in pathogenic organisms, creating more complications for treatment of diseases. Rocky Mountain spotted fever (RMSF) is a neglected tropical disease in humans caused by Rickettsia rickettsii for which no effective therapeutic is available. Subtractive genomics methods facilitate the characterization of non-homologous essential proteins that could be targeted for the discovery of potential therapeutic compounds against R. rickettsii to combat RMSF. Present study followed an in-silico based methodology, involving scanning and filtering the complete proteome of Rickettsia rickettsii by using several prioritization parameters in the search of potential candidates for drug development...
February 20, 2018: Acta Tropica
Zheng Wang, Chenguang Zhao, Yiheng Wang, Zheng Sun, Nan Wang
We developed PANDA (Propagation of Affinity and Domain Architecture) to predict protein functions in the format of Gene Ontology (GO) terms. PANDA at first executes profile-profile alignment algorithm to search against PfamA, KOG, COG, and SwissProt databases, and then launches PSI-BLAST against UniProt for homologue search. PANDA integrates a domain architecture inference algorithm based on the Bayesian statistics that calculates the probability of having a GO term. All the candidate GO terms are pooled and filtered based on Z-score...
February 22, 2018: Scientific Reports
Liu Xiao-Jie, Mao Tie-Bo, Wu Peng, Zhou Rui
OBJECTIVE: To understand the prevalence of Cryptosporidium infection in diarrhea infants under 2 years old in Wuhan City, so as to provide the epidemiological evidence for the prevention and treatment of cryptosporidiosis. METHODS: The fecal samples from infants under 2 years old with diarrhea were collected in Hubei General Hospital and Central South Hospital in Wuhan City, Hubei Province from August 2014 to July 2015. The fecal samples were stored in 2.5% potassium dichromate at 4 ℃ after filtered...
March 14, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Jie Xia, Huabin Hu, Wenjie Xue, Xiang Simon Wang, Song Wu
Histone deacetylase 3 (HDAC3) is a potential target for the treatment of human diseases such as cancers, diabetes, chronic inflammation and neurodegenerative diseases. Previously, we proposed a virtual screening (VS) pipeline named "Hypo1_FRED_SAHA-3" for the discovery of HDAC3 inhibitors (HDAC3Is) and had thoroughly validated it by theoretical calculations. In this study, we attempted to explore its practical utility in a large-scale VS campaign. To this end, we used the VS pipeline to hierarchically screen the Specs chemical library...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
David N Taylor
Objective: The purpose of this study was to review the literature on current challenges and propose solutions for the optimal utilization of the electronic health records (EHRs) in chiropractic practice. Methods: A search was performed in the PubMed, Index of Chiropractic Literature, and Current Index to Nursing and Allied Health Literature databases from November 2005 to February 2015. A combination of the following key words was used: electronic health records , electronic medical records , implementation , documentation , benefits , and challenges ...
December 2017: Journal of Chiropractic Humanities
F Welker
BACKGROUND: The study of ancient protein sequences is increasingly focused on the analysis of older samples, including those of ancient hominins. The analysis of such ancient proteomes thereby potentially suffers from "cross-species proteomic effects": the loss of peptide and protein identifications at increased evolutionary distances due to a larger number of protein sequence differences between the database sequence and the analyzed organism. Error-tolerant proteomic search algorithms should theoretically overcome this problem at both the peptide and protein level; however, this has not been demonstrated...
February 20, 2018: BMC Evolutionary Biology
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