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https://www.readbyqxmd.com/read/28610387/vietelmis-jablonskii-a%C3%A2-new-species-of-riffle-beetle-from-laos-and-thailand-and-new-faunistic-records-on-vietelmis-del%C3%A3-ve-1968-from-malaysia-coleoptera-elmidae
#1
Ján Kodada, Narumon Sangpradub, Rungnapa Somnark, Daniel Gruľa, Dávid Žiak, Hendrik Freitag
A new species of riffle beetle, Vietelmis jablonskii, from Laos and Thailand is described and illustrated. Differences to other Vietelmis species are discussed and an identification key for the Vietelmis is presented. New faunistic records are provided for V. kovaci Kodada & Čiampor, 2000; the genus Vietelmis is newly recorded for Thailand.
May 15, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609974/a-revision-of-the-south-african-riffle-beetle-genus-i-leielmis-i-del%C3%A3-ve-1964-coleoptera-elmidae
#2
David T Bilton
The riffle beetle genus Leielmis Delève, 1964 is redescribed and shown to contain three species, all of which are apparently endemic to the South African Cape, where they live in permanent mountain streams with cold running water. A lectotype is designated for Helmis georyssoides Grouvelle, 1890, and two additional species (L. gibbosus sp. nov. and L. hirsutus sp. nov.) are described for the first time. Following study of the type series, L. georyssoides is shown to be endemic to Table Mountain; most specimens previously assigned to this taxon representing an additional species (L...
April 12, 2017: Zootaxa
https://www.readbyqxmd.com/read/28603055/efficacy-of-a-4-food-elimination-diet-for-children-with-eosinophilic-esophagitis
#3
A F Kagalwalla, J B Wechsler, K Amsden, S Schwartz, M Makhija, A Olive, C M Davis, M Manuel-Rubio, S Marcus, M Sulkowski, K Johnson, J N Ross, M E Riffle, M Groetch, H Melin-Aldana, D Schady, H Palac, K-Y A Kim, B K Wershil, M H Collins, M Chehade
BACKGROUND & AIMS: A 6-food elimination diet induces remission in most children and adults with eosinophilic esophagitis (EoE). The effectiveness of empiric elimination of only 4 foods has not been studied in children. We performed a prospective observational outcome study in children with EoE treated with dietary exclusion of cow's milk, wheat, egg, and soy. The objective was to assess the clinical, endoscopic, and histologic efficacy of this treatment in EoE. METHODS: We recruited children (1-18 years old, diagnosed per consensus guidelines) from 4 medical centers...
June 8, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28600839/social-media-presence-of-otolaryngology-journals-the-past-present-and-future
#4
Kevin Wong, Jacquelyn Piraquive, Jessica R Levi
OBJECTIVES/HYPOTHESIS: Evaluate the use of Twitter by otolaryngology journals and determine the relationship between social media altmetrics and measures of academic impact. STUDY DESIGN: Cross-sectional analysis. METHODS: Twitter profiles from the top 50 otolaryngology journals per 2016 SCImago Journal & Country Rank (SJR) were included. Twitter activity for each profile was calculated using Twitonomy analytics and Riffle software. Social media influence was measured using Klout scores...
June 10, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28531960/multiple-stress-response-of-lowland-stream-benthic-macroinvertebrates-depends-on-habitat-type
#5
Daniel Graeber, Tinna M Jensen, Jes J Rasmussen, Tenna Riis, Peter Wiberg-Larsen, Annette Baattrup-Pedersen
Worldwide, lowland stream ecosystems are exposed to multiple anthropogenic stress due to the combination of water scarcity, eutrophication, and fine sedimentation. The understanding of the effects of such multiple stress on stream benthic macroinvertebrates has been growing in recent years. However, the interdependence of multiple stress and stream habitat characteristics has received little attention, although single stressor studies indicate that habitat characteristics may be decisive in shaping the macroinvertebrate response...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28530822/synthesis-and-membrane-properties-of-sulfonated-poly-arylene-ether-sulfone-statistical-copolymers-for-electrolysis-of-water-influence-of-meta-and-para-substituted-comonomers
#6
Amin Daryaei, Gregory C Miller, Jason Willey, Shreya Roy Choudhury, Britannia Vondrasek, Dana Kazerooni, Matthew R Burtner, Cortney Mittelsteadt, John J Lesko, Judy S Riffle, James E McGrath
Two series of high molecular weight disulfonated poly(arylene ether sulfone) random copolymers were synthesized as proton exchange membranes for high-temperature water electrolyzers. These copolymers differ based on the position of the ether bonds on the aromatic rings. One series is comprised of fully para-substituted hydroquinone comonomer, and the other series incorporated 25 mol % of a meta-substituted comonomer resorcinol and 75 mol % hydroquinone. The influence of the substitution position on water uptake and electrochemical properties of the membranes were investigated and compared to that of the state-of-the-art membrane Nafion...
June 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28521819/linking-hypoxia-dna-damage-and-proliferation-in-multicellular-tumor-spheroids
#7
Stephen Riffle, Ram Naresh Pandey, Morgan Albert, Rashmi S Hegde
BACKGROUND: Multicellular Tumor Spheroids are frequently used to mimic the regionalization of proliferation and the hypoxic environment within avascular tumors. Here we exploit these features to study the activation of DNA damage repair pathways and their correlation to developing hypoxia. METHODS: Activation of DNA damage repair markers, proliferation, cell death, glycogen accumulation and developing hypoxia were investigated using immunofluorescence, immuno-histochemistry, EdU incorporation, Western blots, COMET assays, and pharmacological agents in A673 Ewing sarcoma spheroids and monolayer cultures...
May 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28472043/adequacy-of-laser-diffraction-for-soil-particle-size-analysis
#8
Peter Fisher, Colin Aumann, Kohleth Chia, Nick O'Halloran, Subhash Chandra
Sedimentation has been a standard methodology for particle size analysis since the early 1900s. In recent years laser diffraction is beginning to replace sedimentation as the prefered technique in some industries, such as marine sediment analysis. However, for the particle size analysis of soils, which have a diverse range of both particle size and shape, laser diffraction still requires evaluation of its reliability. In this study, the sedimentation based sieve plummet balance method and the laser diffraction method were used to measure the particle size distribution of 22 soil samples representing four contrasting Australian Soil Orders...
2017: PloS One
https://www.readbyqxmd.com/read/28423423/invertebrates-fungal-biomass-and-leaf-breakdown-in-pools-and-riffles-of-neotropical-streams
#9
Renato Tavares Martins, Lidimara Souza da Silveira, Marcos Pereira Lopes, Roberto Gama Alves
We evaluated fungal biomass (as ergosterol concentration) and invertebrate colonization during leaf breakdown of Picramnia sellowii Planch. (Picramniaceae) in pools and riffles of three low-order forested streams in southeastern Brazil. We hypothesized that leaf breakdown will be higher in riffles due to the high physical fragmentation and fungal activity. The experiment was carried out during the dry season of 2012, using 108 litter bags, each containing 3 ± 0.05 g of air-dried leaves. After 7, 15, 30, 60, 90, and 120 d of incubation, six litter bags (riffle = 3 and pool = 3) were removed from each stream...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28331072/direct-measurement-of-microtubule-attachment-strength-to-yeast-centrosomes
#10
Kimberly K Fong, Krishna K Sarangapani, Erik C Yusko, Michael Riffle, Aida Llauró, Beth Graczyk, Trisha N Davis, Charles L Asbury
Centrosomes, or spindle pole bodies (SPBs) in yeast, are vital mechanical hubs that maintain load-bearing attachments to microtubules during mitotic spindle assembly, spindle positioning, and chromosome segregation. However, the strength of microtubule-centrosome attachments is unknown, and the possibility that mechanical force might regulate centrosome function has scarcely been explored. To uncover how centrosomes sustain and regulate force, we purified SPBs from budding yeast and used laser trapping to manipulate single attached microtubules in vitro Our experiments reveal that SPB-microtubule attachments are extraordinarily strong, rupturing at forces about 4-fold higher than kinetochore attachments under identical loading conditions...
March 22, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28296675/eosinophilic-esophagitis-and-esophageal-granular-cell-tumor-an-unexpected-association
#11
Mary Ellen Riffle, Alexandros D Polydorides, Jessica Niakan, Mirna Chehade
Esophageal granular cell tumors (GCTs) are rare. Eosinophilic esophagitis (EoE) is an immune-mediated disease characterized by esophageal eosinophilia despite proton pump inhibitor (PPI) therapy. Given that GCTs occur at sites of scarring and inflammation, we sought to determine the prevalence of EoE in patients with esophageal GCTs. Our center's pathology database was searched for GCT specimens from 1995 to 2014. Slides were blindly rereviewed. GCTs were scored for atypical cytological features. Presence and number of eosinophils in the tumor and the surrounding esophageal epithelium and any EoE features were recorded...
May 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28191870/the-ndc80-complex-bridges-two-dam1-complex-rings
#12
Jae Ook Kim, Alex Zelter, Neil T Umbreit, Athena Bollozos, Michael Riffle, Richard Johnson, Michael J MacCoss, Charles L Asbury, Trisha N Davis
Strong kinetochore-microtubule attachments are essential for faithful segregation of sister chromatids during mitosis. The Dam1 and Ndc80 complexes are the main microtubule binding components of the Saccharomyces cerevisiae kinetochore. Cooperation between these two complexes enhances kinetochore-microtubule coupling and is regulated by Aurora B kinase. We show that the Ndc80 complex can simultaneously bind and bridge across two Dam1 complex rings through a tripartite interaction, each component of which is regulated by Aurora B kinase...
February 13, 2017: ELife
https://www.readbyqxmd.com/read/28183103/description-of-the-mature-larva-of-i-austrolimnius-i-i-nyctelioides-i-germain-1892-and-i-a-elatus-i-hinton-1941-coleoptera-elmidae
#13
Nicolás Martínez Román, Miguel Archangelsky
Mature larvae of two species of the riffle beetle genus Austrolimnius Carter & Zeck, 1929 are described and illustrated for the first time: Austrolimnius nyctelioides (Germain, 1892) and A. elatus Hinton, 1941. A larval diagnosis for the genus is presented and both larvae are compared with each other and with the previously described larva of A. mucubajiensis Gómez & Bello, 2006. Comments on the species' habitats are included.
January 11, 2017: Zootaxa
https://www.readbyqxmd.com/read/28040495/tips-pentacene-loaded-peo-pdlla-core-shell-nanoparticles-have-similar-cellular-uptake-dynamics-in-m1-and-m2-macrophages-and-in-corresponding-in-vivo-microenvironments
#14
Dylan K McDaniel, Ami Jo, Veronica M Ringel-Scaia, Sheryl Coutermarsh-Ott, Daniel E Rothschild, Michael D Powell, Rui Zhang, Timothy E Long, Kenneth J Oestreich, Judy S Riffle, Richey M Davis, Irving C Allen
Nanoparticle based drug delivery platforms have the potential to transform disease treatment paradigms and therapeutic strategies, especially in the context of pulmonary medicine. Once administered, nanoparticles disperse throughout the lung and many are phagocytosed by macrophages. However, there is a paucity of knowledge regarding cellular up-take dynamics of nanoparticles due largely to macrophage heterogeneity. To address this issue, we sought to better define nanoparticle up-take using polarized M1 and M2 macrophages and novel TIPS-pentacene loaded PEO-PDLLA nanoparticles...
April 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27890476/spatial-and-temporal-dynamics-of-macrophyte-cover-in-a-large-regulated-river
#15
A Tena, D Vericat, L E Gonzalo, R J Batalla
The River Ebro basin is extensively dammed. Dams alter the geomorphological functioning of the river by altering its flow regime (e.g. reducing mean and maximum discharges), increasing bed stability (armouring) and decreasing turbidity (water clarity). These effects, together with an increase in nutrient concentrations and water temperature, have generated optimal conditions for the proliferation of aquatic macrophytes. In this paper, we analyse the temporal and spatial changes of macrophyte cover in the lowermost Ebro through a series of field campaigns carried out between 2009 and 2010...
November 24, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27824341/critical-decisions-in-metaproteomics-achieving-high-confidence-protein-annotations-in-a-sea-of-unknowns
#16
Emma Timmins-Schiffman, Damon H May, Molly Mikan, Michael Riffle, Chris Frazar, H R Harvey, William S Noble, Brook L Nunn
No abstract text is available yet for this article.
February 2017: ISME Journal
https://www.readbyqxmd.com/read/27723440/hairworm-infection-and-seasonal-changes-in-paratenic-hosts-in-a-mountain-stream-in-japan
#17
J Yamashita, T Sato, K Watanabe
For parasites with complex life cycles, the ecological traits determining host competence and seasonal changes in infection in natural habitats are often unclear, making it difficult to predict infection dynamics, including disease outbreaks. Hairworms (phylum Nematomorpha) require both aquatic and terrestrial hosts to complete their life cycle. Although hairworm host competencies have been tested in laboratory experiments, knowledge of the paratenic hosts (aquatic insect larvae) in their natural habitats is limited...
February 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/27672404/de-novo-assembly-and-analysis-of-the-chilean-pencil-catfish-trichomycterus-areolatus-transcriptome
#18
Thomas T Schulze, Jonathan M Ali, Maggie L Bartlett, Madalyn M McFarland, Emalie J Clement, Harim I Won, Austin G Sanford, Elyssa B Monzingo, Matthew C Martens, Ryan M Hemsley, Sidharta Kumar, Nicolas Gouin, Alan S Kolok, Paul H Davis
Trichomycterus areolatus is an endemic species of pencil catfish that inhabits the riffles and rapids of many freshwater ecosystems of Chile. Despite its unique adaptation to Chile's high gradient watersheds and therefore potential application in the investigation of ecosystem integrity and environmental contamination, relatively little is known regarding the molecular biology of this environmental sentinel. Here, we detail the assembly of the Trichomycterus areolatus transcriptome, a molecular resource for the study of this organism and its molecular response to the environment...
2016: Journal of Genomics
https://www.readbyqxmd.com/read/27644858/remote-actuation-of-magnetic-nanoparticles-for-cancer-cell-selective-treatment-through-cytoskeletal-disruption
#19
Alyssa M Master, Philise N Williams, Nikorn Pothayee, Nipon Pothayee, Rui Zhang, Hemant M Vishwasrao, Yuri I Golovin, Judy S Riffle, Marina Sokolsky, Alexander V Kabanov
Motion of micron and sub-micron size magnetic particles in alternating magnetic fields can activate mechanosensitive cellular functions or physically destruct cancer cells. However, such effects are usually observed with relatively large magnetic particles (>250 nm) that would be difficult if at all possible to deliver to remote sites in the body to treat disease. Here we show a completely new mechanism of selective toxicity of superparamagnetic nanoparticles (SMNP) of 7 to 8 nm in diameter to cancer cells...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27541752/does-type-of-substratum-affects-chironomid-larvae-assemblage-composition-a-study-in-a-river-catchment-in-northern-patagonia-argentina
#20
M Mauad, A Siri, M Donato
Chironomid larvae assemblages were investigated at seven sampling stations in relation to stream habitat type in the Challhuaco-Ñireco river system located in the Nahuel Huapi National Park, in the North-Western part of Rio Negro Province, Argentina. A total of 2229 individuals were sampled and 43 Chironomidae taxa were recorded with Orthocladiinae (29) being the best represented subfamily, followed by Diamesinae (5), Tanypodinae (3), Podonominae (3) and Chironominae (3). Stictocladius spF, Cricotopus (Paratrichocladius) sp6, Cricotopus sp2, Cricotopus sp3 and Parapsectrocladius sp2 were the most abundant taxa...
February 2017: Neotropical Entomology
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