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https://www.readbyqxmd.com/read/27835002/it-s-harder-to-splash-on-soft-solids
#1
Christopher J Howland, Arnaud Antkowiak, J Rafael Castrejón-Pita, Sam D Howison, James M Oliver, Robert W Style, Alfonso A Castrejón-Pita
Droplets splash when they impact dry, flat substrates above a critical velocity that depends on parameters such as droplet size, viscosity, and air pressure. By imaging ethanol drops impacting silicone gels of different stiffnesses, we show that substrate stiffness also affects the splashing threshold. Splashing is reduced or even eliminated: droplets on the softest substrates need over 70% more kinetic energy to splash than they do on rigid substrates. We show that this is due to energy losses caused by deformations of soft substrates during the first few microseconds of impact...
October 28, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27830050/the-presence-of-the-ancestral-insect-telomeric-motif-in-kissing-bugs-triatominae-rules-out-the-hypothesis-of-its-loss-in-evolutionarily-advanced-heteroptera-cimicomorpha
#2
Sebastián Pita, Francisco Panzera, Pablo Mora, Jesús Vela, Teresa Palomeque, Pedro Lorite
Next-generation sequencing data analysis on Triatoma infestans Klug, 1834 (Heteroptera, Cimicomorpha, Reduviidae) revealed the presence of the ancestral insect (TTAGG)n telomeric motif in its genome. Fluorescence in situ hybridization confirms that chromosomes bear this telomeric sequence in their chromosomal ends. Furthermore, motif amount estimation was about 0.03% of the total genome, so that the average telomere length in each chromosomal end is almost 18 kb long. We also detected the presence of (TTAGG)n telomeric repeat in mitotic and meiotic chromosomes in other three species of Triatominae: Triatoma dimidiata Latreille, 1811, Dipetalogaster maxima Uhler, 1894, and Rhodnius prolixus Ståhl, 1859...
2016: Comparative Cytogenetics
https://www.readbyqxmd.com/read/27822513/characterization-of-the-%C3%AE-7-mutant-of-cupriavidus-metallidurans-with-deletions-of-seven-secondary-metal-uptake-systems
#3
Cornelia Große, Martin Herzberg, Marcel Schüttau, Nicole Wiesemann, Gerd Hause, Dietrich H Nies
Central to the ability of Cupriavidus metallidurans to maintain its metal homoeostasis is the metal transportome, composed of uptake and efflux systems. Seven secondary metal import systems, ZupT, PitA, CorA1, CorA2, CorA3, ZntB, and HoxN, interact and are at the core of the metal uptake transportome. The 7-fold deletion mutant Δ7 (ΔzupT ΔpitA ΔcorA1ΔcorA2ΔcorA3ΔzntB ΔhoxN) of parent strain AE104 is still able to maintain its cellular metal content, although at the cost of reduced fitness (M. Herzberg, L...
January 2016: MSystems
https://www.readbyqxmd.com/read/27818162/identification-of-axon-growth-promoters-in-the-secretome-of-the-deer-antler-velvet
#4
Wolfgang Pita-Thomas, Gemma Barroso-García, Veronica Moral, Amber R Hackett, Valeria Cavalli, Manuel Nieto-Diaz
Every spring, deer cast their old antlers and initiate a regeneration process, which yields a new set of antlers of up to 1m in length. Over the course of three months, branches of the trigeminal nerve, originating from the frontal skull, innervate velvet, a modified skin that covers the regenerating antler. The rate of growth of these axons reaches up to 2cm per day making them the fastest regenerating axons in adult mammals. Here, we aim to identify the factors secreted by velvet that promote such high speed axon growth...
November 4, 2016: Neuroscience
https://www.readbyqxmd.com/read/27812534/data-on-micrornas-and-microrna-targeted-mrnas-in-xenopus-ectoderm
#5
Vrutant V Shah, Benjamin Soibam, Ruth A Ritter, Ashley Benham, Jamina Oomen, Amy K Sater
Small RNAs from early neural (i.e., Noggin-expressing, or NOG) and epidermal (expressing a constitutively active BMP4 receptor, CABR) ectoderm in Xenopus laevis were sequenced to identify microRNAs (miRs) expressed in each tissue. Argonaute-associated mRNAs were isolated and sequenced to identify genes that are regulated by microRNAs in these tissues. Interactions between these ectodermal miRs and selected miR-regulated mRNAs were predicted using the PITA algorithm; PITA predictions for over 600 mRNAs are presented...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27809783/transcriptomic-data-from-panarthropods-shed-new-light-on-the-evolution-of-insulator-binding-proteins-in-insects-insect-insulator-proteins
#6
Thomas Pauli, Lucia Vedder, Daniel Dowling, Malte Petersen, Karen Meusemann, Alexander Donath, Ralph S Peters, Lars Podsiadlowski, Christoph Mayer, Shanlin Liu, Xin Zhou, Peter Heger, Thomas Wiehe, Lars Hering, Georg Mayer, Bernhard Misof, Oliver Niehuis
BACKGROUND: Body plan development in multi-cellular organisms is largely determined by homeotic genes. Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer blocking IBPs have been identified in vertebrates, the common fruit fly Drosophila melanogaster harbors at least twelve different enhancer blocking IBPs. We screened recently compiled insect transcriptomes from the 1KITE project and genomic and transcriptomic data from public databases, aiming to trace the origin of IBPs in insects and other arthropods...
November 3, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27807076/a-poglut1-mutation-causes-a-muscular-dystrophy-with-reduced-notch-signaling-and-satellite-cell-loss
#7
Emilia Servián-Morilla, Hideyuki Takeuchi, Tom V Lee, Jordi Clarimon, Fabiola Mavillard, Estela Area-Gómez, Eloy Rivas, Jose L Nieto-González, Maria C Rivero, Macarena Cabrera-Serrano, Leonardo Gómez-Sánchez, Jose A Martínez-López, Beatriz Estrada, Celedonio Márquez, Yolanda Morgado, Xavier Suárez-Calvet, Guillermo Pita, Anne Bigot, Eduard Gallardo, Rafael Fernández-Chacón, Michio Hirano, Robert S Haltiwanger, Hamed Jafar-Nejad, Carmen Paradas
Skeletal muscle regeneration by muscle satellite cells is a physiological mechanism activated upon muscle damage and regulated by Notch signaling. In a family with autosomal recessive limb-girdle muscular dystrophy, we identified a missense mutation in POGLUT1 (protein O-glucosyltransferase 1), an enzyme involved in Notch posttranslational modification and function. In vitro and in vivo experiments demonstrated that the mutation reduces O-glucosyltransferase activity on Notch and impairs muscle development...
November 2, 2016: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/27795848/zad-domain-is-essential-for-nuclear-localization-of-insulator-proteins-in-drosophila-melanogaster
#8
N A Zolotarev, O G Maksimenko, P G Georgiev, A N Bonchuk
Many arthropod zinc-finger transcription factors contain a N-terminal domain called ZAD (Zinc-finger Associated Domain), which consists of four cysteines coordinating a single zinc ion. Dimerization ability has been shown for several ZAD-domains. The functional role of this domain is poorly understood. In this paper, we demonstrate that a point mutation within the ZAD-domain of the Zw5 insulator protein disrupts its nuclear localization without affecting its dimerization ability. The importance of the ZAD-domain for nuclear localization has also been shown for the Pita and Grauzone proteins...
July 2016: Acta Naturae
https://www.readbyqxmd.com/read/27791365/synthesis-of-perylene-imide-diones-as-platforms-for-the-development-of-pyrazine-based-organic-semiconductors
#9
Paula de Echegaray, María J Mancheño, Iratxe Arrechea-Marcos, Rafael Juárez, Guzmán López-Espejo, J Teodomiro López Navarrete, María Mar Ramos, Carlos Seoane, Rocío Ponce Ortiz, José L Segura
There is a great interest in peryleneimide (PI)-containing compounds given their unique combination of good electron accepting ability, high abosorption in the visible region, and outstanding chemical, thermal, and photochemical stabilities. Thus, herein we report the synthesis of perylene imide derivatives endowed with a 1,2-diketone functionality (PIDs) as efficient intermediates to easily access peryleneimide (PI)-containing organic semiconductors with enhanced absorption cross-section for the design of tunable semiconductor organic materials...
October 28, 2016: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/27775046/immune-responses-to-an-oral-cholera-vaccine-in-internally-displaced-persons-in-south-sudan
#10
Anita S Iyer, Malika Bouhenia, John Rumunu, Abdinasir Abubakar, Randon J Gruninger, Jane Pita, Richard Lako Lino, Lul L Deng, Joseph F Wamala, Edward T Ryan, Stephen Martin, Dominique Legros, Justin Lessler, David A Sack, Francisco J Luquero, Daniel T Leung, Andrew S Azman
Despite recent large-scale cholera outbreaks, little is known about the immunogenicity of oral cholera vaccines (OCV) in African populations, particularly among those at highest cholera risk. During a 2015 preemptive OCV campaign among internally displaced persons in South Sudan, a year after a large cholera outbreak, we enrolled 37 young children (1-5 years old), 67 older children (6-17 years old) and 101 adults (≥18 years old), who received two doses of OCV (Shanchol) spaced approximately 3 weeks apart...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27768338/h-e-s-s-limits-on-linelike-dark-matter-signatures-in-the-100%C3%A2-gev-to-2%C3%A2-tev-energy-range-close-to-the-galactic-center
#11
H Abdalla, A Abramowski, F Aharonian, F Ait Benkhali, A G Akhperjanian, T Andersson, E O Angüner, M Arrieta, P Aubert, M Backes, A Balzer, M Barnard, Y Becherini, J Becker Tjus, D Berge, S Bernhard, K Bernlöhr, E Birsin, R Blackwell, M Böttcher, C Boisson, J Bolmont, P Bordas, J Bregeon, F Brun, P Brun, M Bryan, T Bulik, M Capasso, J Carr, S Casanova, N Chakraborty, R Chalme-Calvet, R C G Chaves, A Chen, J Chevalier, M Chrétien, S Colafrancesco, G Cologna, B Condon, J Conrad, C Couturier, Y Cui, I D Davids, B Degrange, C Deil, J Devin, P deWilt, A Djannati-Ataï, W Domainko, A Donath, L O'C Drury, G Dubus, K Dutson, J Dyks, M Dyrda, T Edwards, K Egberts, P Eger, J-P Ernenwein, S Eschbach, C Farnier, S Fegan, M V Fernandes, A Fiasson, G Fontaine, A Förster, S Funk, M Füßling, S Gabici, M Gajdus, Y A Gallant, T Garrigoux, G Giavitto, B Giebels, J F Glicenstein, D Gottschall, A Goyal, M-H Grondin, M Grudzińska, D Hadasch, J Hahn, J Hawkes, G Heinzelmann, G Henri, G Hermann, O Hervet, A Hillert, J A Hinton, W Hofmann, C Hoischen, M Holler, D Horns, A Ivascenko, A Jacholkowska, M Jamrozy, M Janiak, D Jankowsky, F Jankowsky, M Jingo, T Jogler, L Jouvin, I Jung-Richardt, M A Kastendieck, K Katarzyński, U Katz, D Kerszberg, B Khélifi, M Kieffer, J King, S Klepser, D Klochkov, W Kluźniak, D Kolitzus, Nu Komin, K Kosack, S Krakau, M Kraus, F Krayzel, P P Krüger, H Laffon, G Lamanna, J Lau, J-P Lees, J Lefaucheur, V Lefranc, A Lemière, M Lemoine-Goumard, J-P Lenain, E Leser, R Liu, T Lohse, M Lorentz, I Lypova, V Marandon, A Marcowith, C Mariaud, R Marx, G Maurin, N Maxted, M Mayer, P J Meintjes, M Meyer, A M W Mitchell, R Moderski, M Mohamed, K Morå, E Moulin, T Murach, M de Naurois, F Niederwanger, J Niemiec, L Oakes, P O'Brien, H Odaka, S Ohm, M Ostrowski, S Öttl, I Oya, M Padovani, M Panter, R D Parsons, M Paz Arribas, N W Pekeur, G Pelletier, C Perennes, P-O Petrucci, B Peyaud, S Pita, H Poon, D Prokhorov, H Prokoph, G Pühlhofer, M Punch, A Quirrenbach, S Raab, A Reimer, O Reimer, M Renaud, R de Los Reyes, F Rieger, C Romoli, S Rosier-Lees, G Rowell, B Rudak, C B Rulten, V Sahakian, D Salek, D A Sanchez, A Santangelo, M Sasaki, R Schlickeiser, F Schüssler, A Schulz, U Schwanke, S Schwemmer, M Settimo, A S Seyffert, N Shafi, I Shilon, R Simoni, H Sol, F Spanier, G Spengler, F Spies, Ł Stawarz, R Steenkamp, C Stegmann, F Stinzing, K Stycz, I Sushch, J-P Tavernet, T Tavernier, A M Taylor, R Terrier, L Tibaldo, M Tluczykont, C Trichard, R Tuffs, J van der Walt, C van Eldik, B van Soelen, G Vasileiadis, J Veh, C Venter, A Viana, P Vincent, J Vink, F Voisin, H J Völk, T Vuillaume, Z Wadiasingh, S J Wagner, P Wagner, R M Wagner, R White, A Wierzcholska, P Willmann, A Wörnlein, D Wouters, R Yang, V Zabalza, D Zaborov, M Zacharias, A A Zdziarski, A Zech, F Zefi, A Ziegler, N Żywucka
: A search for dark matter linelike signals iss performed in the vicinity of the Galactic Center by the H.E.S.S. experiment on observational data taken in 2014. An unbinned likelihood analysis iss developed to improve the sensitivity to linelike signals. The upgraded analysis along with newer data extend the energy coverage of the previous measurement down to 100 GeV. The 18 h of data collected with the H.E.S.S. array allow one to rule out at 95% C.L. the presence of a 130 GeV line (at l=-1...
October 7, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27762079/methamphetamine-induces-anhedonic-like-behavior-and-impairs-frontal-cortical-energetics-in-mice
#12
Raquel Fonseca, Rui A Carvalho, Cristina Lemos, Ana C Sequeira, Inês R Pita, Fábio Carvalho, Carlos D Silva, Rui D S Prediger, Ivana Jarak, Rodrigo A Cunha, Carlos A Fontes Ribeiro, Attila Köfalvi, Frederico C Pereira
INTRODUCTION: We recently showed that a single high dose of methamphetamine (METH) induces a persistent frontal cortical monoamine depletion that is accompanied by helpless-like behavior in mice. However, brain metabolic alterations underlying both neurochemical and mood alterations remain unknown. AIMS: Herein, we aimed at characterizing frontal cortical metabolic alterations associated with early negative mood behavior triggered by METH. Adult C57BL/6 mice were injected with METH (30 mg/kg, i...
October 19, 2016: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/27759763/heterochromatin-base-pair-composition-and-diversification-in-holocentric-chromosomes-of-kissing-bugs-hemiptera-reduviidae
#13
Vanessa Bellini Bardella, Sebastián Pita, André Luis Laforga Vanzela, Cleber Galvão, Francisco Panzera
The subfamily Triatominae (Hemiptera, Reduviidae) includes 150 species of blood-sucking insects, vectors of Chagas disease or American trypanosomiasis. Karyotypic information reveals a striking stability in the number of autosomes. However, this group shows substantial variability in genome size, the amount and distribution of C-heterochromatin, and the chromosome positions of 45S rDNA clusters. Here, we analysed the karyotypes of 41 species from six different genera with C-fluorescence banding in order to evaluate the base-pair richness of heterochromatic regions...
October 2016: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/27723588/multimodal-stereoscopic-movie-summarization-conforming-to-narrative-characteristics
#14
Ioannis Mademlis, Anastasios Tefas, Nikos Nikolaidis, Ioannis Pitas
Video summarization is a timely and rapidly developing research field with broad commercial interest, due to the increasing availability of massive video data. Relevant algorithms face the challenge of needing to achieve a careful balance between summary compactness, enjoyability and content coverage. The specific case of stereoscopic 3D theatrical films has become more important over the past years, but not received corresponding research attention. In the present work, a multi-stage, multimodal summarization process for such stereoscopic movies is proposed, that is able to extract a short, representative video skim conforming to narrative characteristics from a 3D film...
October 5, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27714092/magnesium-ions-in-yeast-setting-free-the-metabolism-from-glucose-catabolite-repression
#15
Rafael Barros de Souza, Rayssa Karla Silva, Dayvison Soares Ferreira, Sérgio de Sá Leitão Paiva Junior, Will de Barros Pita, Marcos Antonio de Morais Junior
In a recent work we showed that magnesium (Mg(II)) plays an important role in industrial ethanol production, overcoming the negative effect of the excess of minerals, particularly copper, present in sugarcane juice, with a consequent increase in ethanol yield. This cation has been reported to be involved in several steps of yeast metabolism, acting mainly as a co-factor of several enzymes of fermentation metabolism and protecting yeast cells from stressful conditions. However, despite many physiological investigations, its effect in the molecular mechanisms that control such metabolic activities remains unclear and to date no information concerning its influence on gene expression has been provided...
November 9, 2016: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/27709093/how-to-set-up-a-program-of-minimally-invasive-surgery-for-congenital-heart-defects
#16
Juan-Miguel Gil-Jaurena, Ramón Pérez-Caballero, Ana Pita-Fernández, María-Teresa González-López, Jairo Sánchez, Juan-Carlos De Agustín
BACKGROUND: Mid-line sternotomy is the commonest incision for cardiac surgery. Alternative approaches are becoming fashionable in many centres, amidst some reluctance because of learning curves and overall complexity. Our recent experience in starting a new program on minimally invasive pediatric cardiac surgery is presented. The rationale for a stepwise onset and the short-medium term results for a three-year span are displayed. METHODS: A three-step schedule is planned: First, an experienced surgeon (A) starts performing simple cases...
July 2016: Translational pediatrics
https://www.readbyqxmd.com/read/27705102/toxoplasmatinae-parasites-in-bats-from-bahia-state-brazil
#17
Rogério Fernando de Jesus, Gabriel Menezes Rodrigues, Evandro Moraes Silva, Aroldo José Borges Carneiro, Carlos Roberto Franke, Rogério de Magalhães Cunha, Luís Fernando Pita Gondim
Toxoplasma gondii and Neospora caninum are widespread cyst-forming coccidian parasites of the subfamily Toxoplasmatinae that infect a wide range of wild and domestic animals. Whereas T. gondii is a zoonotic disease, N. caninum is restricted to nonhuman animals. Some chiropteran species can be infected by T. gondii and present fatal toxoplasmosis. In most cases, T. gondii -infected bats are believed to remain asymptomatic and to act as an infection source to other animals. It is not known whether N. caninum can infect bats...
October 5, 2016: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/27700126/three-year-clinical-evaluation-of-class-i-restorations-in-posterior-teeth-effects-of-two-adhesive-systems
#18
Renato Herman Sundfeld, Lucas Silveira Machado, Diego Sucena Pita, Laura Molinar Franco, Daniel Sundfeld, Maria Lúcia Marçal Mazza Sundefeld, Lourenço Correr-Sobrinho
This longitudinal study evaluated the clinical performance of 97 direct class I resin composite restorations after 3 years. The restorations were performed using 2 types of adhesive systems: (1) Adper™ Single Bond Plus (SB) (3M ESPE, 3mespe.com), which is a two-step etch-and-rinse system, and (2) Adper Scotchbond™ SE (SE) (3M ESPE), which is a two-step self-etching system. Two calibrated examiners evaluated the restorations using modified US Public Health Service criteria. The materials were applied following the manufacturer's instructions, and 15 patients received at least one of the two adhesive systems...
October 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27689355/apo-aiv-and-citrulline-plasma-concentrations-in-short-bowel-syndrome-patients-the-influence-of-short-bowel-anatomy
#19
M Dolores López-Tejero, Núria Virgili, Jordi Targarona, Jorge Ruiz, Natalia García, Denise Oró, Judit García-Villoria, Gloria Creus, Ana M Pita
INTRODUCTION: Parenteral nutrition (PN) dependence in short bowel syndrome (SBS) patients is linked to the functionality of the remnant small bowel (RSB). Patients may wean off PN following a period of intestinal adaptation that restores this functionality. Currently, plasma citrulline is the standard biomarker for monitoring intestinal functionality and adaptation. However, available studies reveal that the relationship the biomarker with the length and function of the RSB is arguable...
2016: PloS One
https://www.readbyqxmd.com/read/27688270/chromosome-painting-in-triatomine-insects-reveals-shared-sequences-between-x-chromosomes-and-autosomes
#20
Sebastián Pita, Francisco Panzera, Antonio Sánchez, Teresa Palomeque, Pedro Lorite
In order to provide a broad picture on the origin and evolution of holocentric X chromosomes in heteropteran species, we prepared a sex chromosome painting probe by microdissection of the X1 and X2 chromosomes from a kissing bug Mepraia spinolai (Hemiptera: Reduviidae: Triatominae). Fluorescence in situ hybridization on four species of the Triatomini having different amounts of autosomal heterochromatin and sex chromosome systems show that the Xs probe hybridizes on the euchromatin, located both on autosomes and X chromosomes...
September 29, 2016: Journal of Medical Entomology
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