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https://www.readbyqxmd.com/read/28812626/dispersal-governs-the-reorganization-of-ecological-networks-under-environmental-change
#1
Patrick L Thompson, Andrew Gonzalez
Ecological networks, such as food webs, mutualist webs and host-parasite webs, are reorganizing as species abundances and spatial distributions shift in response to environmental change. Current theoretical expectations for how this reorganization will occur are available for competition or for parts of interaction networks, but these may not extend to more complex networks. Here we use metacommunity theory to develop new expectations for how complex networks will reorganize under environmental change, and show that dispersal is crucial for determining the degree to which networks will retain their composition and structure...
May 8, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28808016/hydrodynamics-of-microbial-filter-feeding
#2
Lasse Tor Nielsen, Seyed Saeed Asadzadeh, Julia Dölger, Jens H Walther, Thomas Kiørboe, Anders Andersen
Microbial filter feeders are an important group of grazers, significant to the microbial loop, aquatic food webs, and biogeochemical cycling. Our understanding of microbial filter feeding is poor, and, importantly, it is unknown what force microbial filter feeders must generate to process adequate amounts of water. Also, the trade-off in the filter spacing remains unexplored, despite its simple formulation: A filter too coarse will allow suitably sized prey to pass unintercepted, whereas a filter too fine will cause strong flow resistance...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28791730/arterial-supply-of-the-thumb-systemic-review
#3
REVIEW
J Miletin, A Sukop, V Baca, D Kachlik
INTRODUCTION: We offer a complete systematic review of the anatomy of arteries of the thumb, including their sources in the first web space. MATERIALS AND METHODS: Eleven studies were selected from the PubMed, Medline, Embase, Scopus and Ovid databases. Data about each artery of the thumb were obtained; in particular, the incidence and dominance of each of these arteries were calculated. RESULTS: The ulnopalmar digital artery of the thumb (UPDAT) was found in 99...
August 9, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28763688/prediction-of-lysine-propionylation-sites-using-biased-svm-and-incorporating-four-different-sequence-features-into-chou-s-pseaac
#4
Zhe Ju, Jian-Jun He
Lysine propionylation is an important and common protein acylation modification in both prokaryotes and eukaryotes. To better understand the molecular mechanism of propionylation, it is important to identify propionylated substrates and their corresponding propionylation sites accurately. In this study, a novel bioinformatics tool named PropPred is developed to predict propionylation sites by using multiple feature extraction and biased support vector machine. On the one hand, various features are incorporated, including amino acid composition, amino acid factors, binary encoding, and the composition of k-spaced amino acid pairs...
July 25, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28750285/modelling-food-web-mediated-effects-of-hydrological-variability-and-environmental-flows
#5
REVIEW
Barbara J Robson, Rebecca E Lester, Darren S Baldwin, Nicholas R Bond, Romain Drouart, Robert J Rolls, Darren S Ryder, Ross M Thompson
Environmental flows are designed to enhance aquatic ecosystems through a variety of mechanisms; however, to date most attention has been paid to the effects on habitat quality and life-history triggers, especially for fish and vegetation. The effects of environmental flows on food webs have so far received little attention, despite food-web thinking being fundamental to understanding of river ecosystems. Understanding environmental flows in a food-web context can help scientists and policy-makers better understand and manage outcomes of flow alteration and restoration...
July 17, 2017: Water Research
https://www.readbyqxmd.com/read/28746226/the-use-of-a-dorsal-double-wing-flap-without-skin-grafts-for-congenital-syndactyly-treatment-a-strobe-compliant-study
#6
Yanzhao Dong, Yisheng Wang
Numerous techniques have been developed that use various flaps to treat syndactyly. Skin grafts have often been used to cover remaining surgical defects. The long-term aim of surgery is to find new methods of separating the digits without using skin grafts. This paper describes a new surgical technique for the correction of simple, incomplete, and complete syndactyly. The technique consists of a dorsal double-wing flap to cover the newly created web space and zigzag incisions in the fingers, thus avoiding the use of skin grafts in this space...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28738824/visibiome-an-efficient-microbiome-search-engine-based-on-a-scalable-distributed-architecture
#7
Syafiq Kamarul Azman, Muhammad Zohaib Anwar, Andreas Henschel
BACKGROUND: Given the current influx of 16S rRNA profiles of microbiota samples, it is conceivable that large amounts of them eventually are available for search, comparison and contextualization with respect to novel samples. This process facilitates the identification of similar compositional features in microbiota elsewhere and therefore can help to understand driving factors for microbial community assembly. RESULTS: We present Visibiome, a microbiome search engine that can perform exhaustive, phylogeny based similarity search and contextualization of user-provided samples against a comprehensive dataset of 16S rRNA profiles environments, while tackling several computational challenges...
July 24, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28732513/competing-for-space-in-an-already-crowded-market-a-mixed-methods-study-of-why-an-online-community-of-practice-cop-for-alcohol-harm-reduction-failed-to-generate-interest-amongst-the-group-of-public-health-professionals-at-which-it-was-aimed
#8
Ruth Ponsford, Jennifer Ford, Helena Korjonen, Emma Hughes, Asha Keswani, Triantafyllos Pliakas, Matt Egan
BACKGROUND: Improving mechanisms for knowledge translation (KT) and connecting decision-makers to each other and the information and evidence they consider relevant to their work remains a priority for public health. Virtual communities of practices (CoPs) potentially offer an affordable and flexible means of encouraging connection and sharing of evidence, information and learning among the public health community in ways that transgress traditional geographical, professional, institutional and time boundaries...
July 21, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28724739/distinct-spinning-patterns-gain-differentiated-loading-tolerance-of-silk-thread-anchorages-in-spiders-with-different-ecology
#9
Jonas O Wolff, Arie van der Meijden, Marie E Herberstein
Building behaviour in animals extends biological functions beyond bodies. Many studies have emphasized the role of behavioural programmes, physiology and extrinsic factors for the structure and function of buildings. Structure attachments associated with animal constructions offer yet unrealized research opportunities. Spiders build a variety of one- to three-dimensional structures from silk fibres. The evolution of economic web shapes as a key for ecological success in spiders has been related to the emergence of high performance silks and thread coating glues...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28720558/my-team-of-care-study-a-pilot-randomized-controlled-trial-of-a-web-based-communication-tool-for-collaborative-care-in-patients-with-advanced-cancer
#10
Teja Voruganti, Eva Grunfeld, Trevor Jamieson, Allison M Kurahashi, Bhadra Lokuge, Monika K Krzyzanowska, Muhammad Mamdani, Rahim Moineddin, Amna Husain
BACKGROUND: The management of patients with complex care needs requires the expertise of health care providers from multiple settings and specialties. As such, there is a need for cross-setting, cross-disciplinary solutions that address deficits in communication and continuity of care. We have developed a Web-based tool for clinical collaboration, called Loop, which assembles the patient and care team in a virtual space for the purpose of facilitating communication around care management...
July 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28719455/microscope-and-fiberscope-assisted-subarachnoid-subarachnoid-s-s-bypass-a-novel-surgical-technique-to-reestablish-cerebrospinal-fluid-flow-in-treating-dorsal-spinal-arachnoid-webs-diagnosed-by-cine-mri
#11
Yasushi Fujiwara, Hideki Manabe, Bunichiro Izumi, Takayuki Shima, Nobuo Adachi
A "dorsal spinal arachnoid web" is the thickened arachnoid band on the surface of the spinal cord which disturbs the cerebrospinal fluid (CSF) flow, known as a rare cause of thoracic myelopathy. The ideal treatment is controversial because of the risk of readhesion after simple resection of the web. A subarachnoid-subarachnoid bypass is a method to reestablish CSF flow through a silicon tube between the cranial and caudal subarachnoid space. This method is reported to be useful for traumatic syringomyelia, adhesive arachnoiditis, etc...
July 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28718973/constructing-a-multidimensional-free-energy-surface-like-a-spider-weaving-a-web
#12
Changjun Chen
Complete free energy surface in the collective variable space provides important information of the reaction mechanisms of the molecules. But, sufficient sampling in the collective variable space is not easy. The space expands quickly with the number of the collective variables. To solve the problem, many methods utilize artificial biasing potentials to flatten out the original free energy surface of the molecule in the simulation. Their performances are sensitive to the definitions of the biasing potentials...
July 18, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28718204/detrital-shadows-estuarine-food-web-connectivity-depends-on-fluvial-influence-and-consumer-feeding-mode
#13
Emily Howe, Charles A Simenstad, Andrea Ogston
We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ(13) C, δ(15) N, δ(34) S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, Japanese eelgrass (Zostera japonica), and native eelgrass (Zostera marina)...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28707642/teaching-procedural-skills-to-medical-students-a-pilot-procedural-skills-lab
#14
Laurence M Katz, Alexander Finch, Tyler McKinnish, Kurt Gilliland, Sue Tolleson-Rinehart, Bonita L Marks
BACKGROUND: Medical students have limited confidence in performing procedural skills. A pilot study was conducted to evaluate the effect of a multifaceted Procedural Skills Lab (PSL) on the confidence of medical students to perform procedural skills. METHODS: Twelve 2nd year medical students were randomly selected to participate in a pilot PSL. The PSL students met with an instructor for 2 h once a week for 4 weeks. Students participated in a flipped classroom and spaced education program before laboratory sessions that included a cadaver laboratory...
January 2017: Education for Health: Change in Training & Practice
https://www.readbyqxmd.com/read/28669103/disease-modifying-anti-rheumatic-drug-effect-of-denosumab-on-radiographic-progression-in-rheumatoid-arthritis-a-systematic-review-of-the-literature
#15
Gonçalo Boleto, Moustapha Dramé, Isabelle Lambrecht, Jean-Paul Eschard, Jean-Hugues Salmon
The aim of this study was to evaluate the structural effect of denosumab on patients with rheumatoid arthritis (RA). We performed a systematic review of the literature in the following databases: PubMed, Cochrane, Web of Science, ClinicalTrials.gov , and the WHO International Clinical Trials Registry Platform. All studies evaluating the structural effect of denosumab on RA and meeting predefined criteria were included. Data regarding disease activity, progression of joint damage, joint space narrowing, and safety were recorded...
August 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28652720/development-of-a-training-program-to-support-health-care-professionals-to-deliver-the-space-for-copd-self-management-program
#16
Claire Blackmore, Vicki L Johnson-Warrington, Johanna Ea Williams, Lindsay D Apps, Hannah Ml Young, Claire LA Bourne, Sally J Singh
BACKGROUND: With the growing burden of COPD and associated morbidity and mortality, a need for self-management has been identified. The Self-management Programme of Activity, Coping and Education for Chronic Obstructive Pulmonary Disease (SPACE for COPD) manual was developed to support self-management in COPD patients. Currently, there is no literature available regarding health care professionals' training needs when supporting patients with COPD on self-management. AIM: This study sought to identify these needs to inform, design and develop a training program for health care professionals being trained to deliver a self-management program in COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28650700/the-size-and-scope-of-collegiate-athletic-training-facilities-and-staffing
#17
Andrew R Gallucci, Jeffrey C Petersen
CONTEXT:   Athletic training facilities have been described in terms of general design concepts and from operational perspectives. However, the size and scope of athletic training facilities, along with staffing at different levels of intercollegiate competition, have not been quantified. OBJECTIVE:   To define the size and scope of athletic training facilities and staffing levels at various levels of intercollegiate competition. To determine if differences existed in facilities (eg, number of facilities, size of facilities) and staffing (eg, full time, part time) based on the level of intercollegiate competition...
August 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28637917/degree-heterogeneity-and-stability-of-ecological-networks
#18
Gang Yan, Neo D Martinez, Yang-Yu Liu
A classic measure of ecological stability describes the tendency of a community to return to equilibrium after small perturbations. While many advances show how the network architecture of these communities severely constrains such tendencies, one of the most fundamental properties of network structure, i.e. degree heterogeneity-the variability of the number of links associated with each species, deserves further study. Here we show that the effects of degree heterogeneity on stability vary with different types of interspecific interactions...
June 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28623024/functional-diversity-of-aquatic-ciliates
#19
REVIEW
Thomas Weisse
This paper first reviews the concept of functional diversity in general terms and then applies it to free-living aquatic ciliates. Ciliates are extremely versatile organisms and display an enormous functional diversity as key elements of pelagic food webs, acting as predators of bacteria, algae, other protists and even some metazoans. Planktonic ciliates are important food for zooplankton, and mixotrophic and functionally autotrophic species may significantly contribute to primary production in the ocean and in lakes...
April 13, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28617645/the-implications-of-eco-evolutionary-processes-for-the-emergence-of-marine-plankton-community-biogeography
#20
Boris Sauterey, Ben Ward, Jonathan Rault, Chris Bowler, David Claessen
Models of community assembly have been used to illustrate how the many functionally diverse species that compose plankton food webs can coexist. However, the evolutionary processes leading to the emergence of plankton food webs and their interplay with migratory processes and spatial heterogeneity are yet to be explored. We study the eco-evolutionary dynamics of a modeled plankton community structured in both size and space and physiologically constrained by empirical data. We demonstrate that a complex yet ecologically and evolutionarily stable size-structured food web can emerge from an initial set of two monomorphic phytoplankton and zooplankton populations...
July 2017: American Naturalist
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