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https://www.readbyqxmd.com/read/28651141/a-comparative-study-of-pilot-scale-bio-trickling-filters-with-counter-and-cross-current-flow-patterns-in-the-treatment-of-emissions-from-chemical-fibre-wastewater-treatment-plant
#1
Zhuhui Yang, Jia Liu, Jingyang Cao, Dinghe Sheng, Tingjian Cai, Jian Li
Two pilot-scale bio-trickling filters (BTFs) with counter-current and cross-current flow modes were constructed, and their performance tested, for purifying chemical fibre waste gas containing H2S, NH3 and VOCs with a maximum gas flow rate of 1008m(3)h(-1). The counter-current type of BTF presented with superior biodegradation results compared to the cross-current type: it could start up quickly, tolerated high transient shock loadings, and possessed an average contaminant removal efficiency higher than 90% with an empty bed residence time of 59s...
June 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28649496/de-novo-transcriptome-assembly-of-loggerhead-sea-turtle-nesting-of-the-colombian-caribbean
#2
Javier Hernández-Fernández, Andrés Pinzón, Leonardo Mariño-Ramírez
Loggerhead sea turtle Caretta caretta is widely distributed in the oceans of tropical and subtropical latitude. This turtle is an endangered species due to anthropic and natural factors that have decreased their population levels. In this study, RNA sequencing and de-novo assembly of genes expressed in blood were performed. The raw FASTQ files have been deposited on NCBI's SRA database with accession number SRX2629512. A total of 5.4 Gb raw sequence data were obtained, corresponding to 48,257,019 raw reads...
September 2017: Genomics Data
https://www.readbyqxmd.com/read/28649474/using-high-throughput-sequencing-of-its2-to-describe-symbiodinium-metacommunities-in-st-john-us-virgin-islands
#3
Ross Cunning, Ruth D Gates, Peter J Edmunds
Symbiotic microalgae (Symbiodinium spp.) strongly influence the performance and stress-tolerance of their coral hosts, making the analysis of Symbiodinium communities in corals (and metacommunities on reefs) advantageous for many aspects of coral reef research. High-throughput sequencing of ITS2 nrDNA offers unprecedented scale in describing these communities, yet high intragenomic variability at this locus complicates the resolution of biologically meaningful diversity. Here, we demonstrate that generating operational taxonomic units by clustering ITS2 sequences at 97% similarity within, but not across, samples collapses sequence diversity that is more likely to be intragenomic, while preserving diversity that is more likely interspecific...
2017: PeerJ
https://www.readbyqxmd.com/read/28647378/leishmaniasis-drug-discovery-recent-progress-and-challenges-in-assay-development
#4
REVIEW
Bilal Zulfiqar, Todd B Shelper, Vicky M Avery
Leishmaniasis, caused by the trypanosomatid protozoan Leishmania, is endemic in 98 countries worldwide, with morbidity and mortality increasing daily. Despite available drugs, leishmaniasis faces the challenge of emerging resistance and toxicity concerns for current drug regimes. Identification of anti-leishmanial compounds representing new chemistry and novel mechanisms of action is essential to populate the drug discovery pipeline. The in vitro assays currently available have shown poor translational outcomes, with high compound attrition rates...
June 21, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28647091/phenotypic-screening-the-fast-track-to-novel-antibody-discovery
#5
REVIEW
Ralph R Minter, Alan M Sandercock, Steven J Rust
The majority of antibody therapeutics have been isolated from target-led drug discovery, where many years of target research preceded drug program initiation. However, as the search for validated targets becomes more challenging and target space becomes increasingly competitive, alternative strategies, such as phenotypic drug discovery, are gaining favour. This review highlights successful examples of antibody phenotypic screens that have led to clinical drug candidates. We also review the requirements for performing an effective antibody phenotypic screen, including antibody enrichment and target identification strategies...
March 2017: Drug Discovery Today. Technologies
https://www.readbyqxmd.com/read/28646868/comprehensive-benchmarking-of-markov-chain-monte-carlo-methods-for-dynamical-systems
#6
Benjamin Ballnus, Sabine Hug, Kathrin Hatz, Linus Görlitz, Jan Hasenauer, Fabian J Theis
BACKGROUND: In quantitative biology, mathematical models are used to describe and analyze biological processes. The parameters of these models are usually unknown and need to be estimated from experimental data using statistical methods. In particular, Markov chain Monte Carlo (MCMC) methods have become increasingly popular as they allow for a rigorous analysis of parameter and prediction uncertainties without the need for assuming parameter identifiability or removing non-identifiable parameters...
June 24, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28646674/a-multimodal-spatiotemporal-cardiac-motion-atlas-from-mr-and-ultrasound-data
#7
Esther Puyol-Antón, Matthew Sinclair, Bernhard Gerber, Mihaela Silvia Amzulescu, Hélène Langet, Mathieu De Craene, Paul Aljabar, Paolo Piro, Andrew P King
Cardiac motion atlases provide a space of reference in which the motions of a cohort of subjects can be directly compared. Motion atlases can be used to learn descriptors that are linked to different pathologies and which can subsequently be used for diagnosis. To date, all such atlases have been formed and applied using data from the same modality. In this work we propose a framework to build a multimodal cardiac motion atlas from 3D magnetic resonance (MR) and 3D ultrasound (US) data. Such an atlas will benefit from the complementary motion features derived from the two modalities, and furthermore, it could be applied in clinics to detect cardiovascular disease using US data alone...
June 13, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28646356/pharmacotherapy-in-the-management-of-pediatric-obesity
#8
REVIEW
Aaron S Kelly, Claudia K Fox
PURPOSE OF REVIEW: This review provides a rationale for the use of pharmacotherapy in pediatric weight management, summarizes results of some of the key pediatric clinical trials of approved and "off-label" obesity medications, introduces new options in the pediatric pipeline, and offers a glimpse into the future of pediatric obesity medicine. RECENT FINDINGS: Despite the need for adjunctive treatments to enhance the outcomes of lifestyle modification therapy among youth with obesity, none of the obesity medications evaluated to date have been shown to meaningfully reduce BMI or cardiometabolic risk factors...
August 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28645840/autoreject-automated-artifact-rejection-for-meg-and-eeg-data
#9
Mainak Jas, Denis A Engemann, Yousra Bekhti, Federico Raimondo, Alexandre Gramfort
We present an automated algorithm for unified rejection and repair of bad trials in magnetoencephalography (MEG) and electroencephalography (EEG) signals. Our method capitalizes on cross-validation in conjunction with a robust evaluation metric to estimate the optimal peak-to-peak threshold - a quantity commonly used for identifying bad trials in M/EEG. This approach is then extended to a more sophisticated algorithm which estimates this threshold for each sensor yielding trial-wise bad sensors. Depending on the number of bad sensors, the trial is then repaired by interpolation or by excluding it from subsequent analysis...
June 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/28645248/characterizing-the-reproductive-transcriptomic-correlates-of-acute-dehydration-in-males-in-the-desert-adapted-rodent-peromyscus-eremicus
#10
Lauren Kordonowy, Matthew MacManes
BACKGROUND: The understanding of genomic and physiological mechanisms related to how organisms living in extreme environments survive and reproduce is an outstanding question facing evolutionary and organismal biologists. One interesting example of adaptation is related to the survival of mammals in deserts, where extreme water limitation is common. Research on desert rodent adaptations has focused predominantly on adaptations related to surviving dehydration, while potential reproductive physiology adaptations for acute and chronic dehydration have been relatively neglected...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28642701/the-market-of-biopharmaceutical-medicines-a-snapshot-of-a-diverse-industrial-landscape
#11
Evelien Moorkens, Nicolas Meuwissen, Isabelle Huys, Paul Declerck, Arnold G Vulto, Steven Simoens
Background: Biopharmaceutical medicines represent a growing share of the global pharmaceutical market, and with many of these biopharmaceutical products facing loss of exclusivity rights, also biosimilars may now enter the biopharmaceutical market. Objectives: This study aims to identify and document which investment and development strategies are adopted by industrial players in the global biopharmaceutical market. Methods: A descriptive analysis was undertaken of the investment and development strategies of the top 25 pharmaceutical companies according to 2015 worldwide prescription drug sales...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28642263/volumetric-analysis-from-a-harmonized-multisite-brain-mri-study-of-a-single-subject-with-multiple-sclerosis
#12
R T Shinohara, J Oh, G Nair, P A Calabresi, C Davatzikos, J Doshi, R G Henry, G Kim, K A Linn, N Papinutto, D Pelletier, D L Pham, D S Reich, W Rooney, S Roy, W Stern, S Tummala, F Yousuf, A Zhu, N L Sicotte, R Bakshi
BACKGROUND AND PURPOSE: MR imaging can be used to measure structural changes in the brains of individuals with multiple sclerosis and is essential for diagnosis, longitudinal monitoring, and therapy evaluation. The North American Imaging in Multiple Sclerosis Cooperative steering committee developed a uniform high-resolution 3T MR imaging protocol relevant to the quantification of cerebral lesions and atrophy and implemented it at 7 sites across the United States. To assess intersite variability in scan data, we imaged a volunteer with relapsing-remitting MS with a scan-rescan at each site...
June 22, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28642145/new-and-improved-a-review-of-novel-antibiotics-for-gram-positive-bacteria
#13
REVIEW
Mohamed Abbas, Mical Paul, Angela Huttner
BACKGROUND: The number of antibiotics in the pipeline targeting Gram-positive pathogens has increased in recent years. AIMS: This narrative review aims to provide a summary of existing evidence on efficacy, microbiologic spectrum, and safety of novel systemic antibiotics that have either recently been licenced or completed phase III trials, and possess activity predominantly against Gram-positive organisms. SOURCES: A review of the published literature via the MEDLINE database was performed...
June 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28641198/combined-computational-experimental-approach-to-predict-blood-brain-barrier-bbb-permeation-based-on-green-salting-out-thin-layer-chromatography-supported-by-simple-molecular-descriptors
#14
Krzesimir Ciura, Mariusz Belka, Piotr Kawczak, Tomasz Bączek, Michał J Markuszewski, Joanna Nowakowska
The objective of this paper is to build QSRR/QSAR model for predicting the blood-brain barrier (BBB) permeability. The obtained models are based on salting-out thin layer chromatography (SOTLC) constants and calculated molecular descriptors. Among chromatographic methods SOTLC was chosen, since the mobile phases are free of organic solvent. As consequences, there are less toxic, and have lower environmental impact compared to classical reserved phases liquid chromatography (RPLC). During the study three stationary phase silica gel, cellulose plates and neutral aluminum oxide were examined...
June 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28639311/increasing-the-pipeline-and-diversity-of-doctorally-prepared-nurses-description-and-preliminary-evaluation-of-a-health-disparities-summer-research-program
#15
John P Salerno, Rosa Gonzalez-Guarda, Mary Hooshmand
Despite calls to increase the number and diversity of doctorally prepared nurses, recent data indicate a severe shortage of PhD-prepared nurses, especially those of racial/ethnic minority backgrounds. This is concerning, given that evidence indicates that racial/ethnic minority PhD-prepared nurses are well-positioned to address health disparities, by attending to the needs/concerns of medically underrepresented groups. The purpose of this article is to describe and provide a preliminary evaluation of a summer research program for minority nursing students...
June 22, 2017: Public Health Nursing
https://www.readbyqxmd.com/read/28639162/bacterial-genome-sequencing-in-clinical-microbiology-a-pathogen-oriented-review
#16
REVIEW
F Tagini, G Greub
In recent years, whole-genome sequencing (WGS) has been perceived as a technology with the potential to revolutionise clinical microbiology. Herein, we reviewed the literature on the use of WGS for the most commonly encountered pathogens in clinical microbiology laboratories: Escherichia coli and other Enterobacteriaceae, Staphylococcus aureus and coagulase-negative staphylococci, streptococci and enterococci, mycobacteria and Chlamydia trachomatis. For each pathogen group, we focused on five different aspects: the genome characteristics, the most common genomic approaches and the clinical uses of WGS for (i) typing and outbreak analysis, (ii) virulence investigation and (iii) in silico antimicrobial susceptibility testing...
June 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28639145/in-vitro-and-in-vivo-activity-of-theaflavin-epicatechin-combinations-versus-multidrug-resistant-acinetobacter-baumannii
#17
Jonathan W Betts, Michael Hornsey, David W Wareham, Roberto M La Ragione
INTRODUCTION: Acinetobacter baumannii is an important human nosocomial pathogen; most clinical isolates are multidrug-resistant (MDR). Infections caused by A. baumannii often lead to high morbidity and mortality, with limited treatment options. Owing to the small number of anti-Gram-negative antibiotics in the development pipeline, researchers are looking to other natural compounds. The aim of this study was to determine the in vitro kill kinetics, in vivo efficacy and toxicity of theaflavin-epicatechin combinations against MDR A...
June 21, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/28638672/response-to-comment-on-failure-of-the-pipeline-embolization-device-in-posterior-communicating-artery-aneurysms-associated-with-a-fetal-posterior-cerebral-artery
#18
COMMENT
Mario Zanaty, Nohra Chalouhi, Robert M Starke, Pascal Jabbour, Katherine O Ryken, Ketan R Bulsara, David Hasan
No abstract text is available yet for this article.
2017: Case Reports in Vascular Medicine
https://www.readbyqxmd.com/read/28638238/a-computational-methodology-to-overcome-the-challenges-associated-with-the-search-for-specific-enzyme-targets-to-develop-drugs-against-leishmania-major
#19
Larissa Catharina, Carlyle Ribeiro Lima, Alexander Franca, Ana Carolina Ramos Guimarães, Marcelo Alves-Ferreira, Pierre Tuffery, Philippe Derreumaux, Nicolas Carels
We present an approach for detecting enzymes that are specific of Leishmania major compared with Homo sapiens and provide targets that may assist research in drug development. This approach is based on traditional techniques of sequence homology comparison by similarity search and Markov modeling; it integrates the characterization of enzymatic functionality, secondary and tertiary protein structures, protein domain architecture, and metabolic environment. From 67 enzymes represented by 42 enzymatic activities classified by AnEnPi (Analogous Enzymes Pipeline) as specific for L major compared with H sapiens, only 40 (23 Enzyme Commission [EC] numbers) could actually be considered as strictly specific of L major and 27 enzymes (19 EC numbers) were disregarded for having ambiguous homologies or analogies with H sapiens...
2017: Bioinformatics and Biology Insights
https://www.readbyqxmd.com/read/28638050/de-novo-yeast-genome-assemblies-from-minion-pacbio-and-miseq-platforms
#20
Francesca Giordano, Louise Aigrain, Michael A Quail, Paul Coupland, James K Bonfield, Robert M Davies, German Tischler, David K Jackson, Thomas M Keane, Jing Li, Jia-Xing Yue, Gianni Liti, Richard Durbin, Zemin Ning
Long-read sequencing technologies such as Pacific Biosciences and Oxford Nanopore MinION are capable of producing long sequencing reads with average fragment lengths of over 10,000 base-pairs and maximum lengths reaching 100,000 base- pairs. Compared with short reads, the assemblies obtained from long-read sequencing platforms have much higher contig continuity and genome completeness as long fragments are able to extend paths into problematic or repetitive regions. Many successful assembly applications of the Pacific Biosciences technology have been reported ranging from small bacterial genomes to large plant and animal genomes...
June 21, 2017: Scientific Reports
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