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https://www.readbyqxmd.com/read/28812654/transitions-between-phases-of-genomic-differentiation-during-stick-insect-speciation
#1
Rüdiger Riesch, Moritz Muschick, Dorothea Lindtke, Romain Villoutreix, Aaron A Comeault, Timothy E Farkas, Kay Lucek, Elizabeth Hellen, Víctor Soria-Carrasco, Stuart R Dennis, Clarissa F de Carvalho, Rebecca J Safran, Cristina P Sandoval, Jeff Feder, Regine Gries, Bernard J Crespi, Gerhard Gries, Zach Gompert, Patrik Nosil
Speciation can involve a transition from a few genetic loci that are resistant to gene flow to genome-wide differentiation. However, only limited data exist concerning this transition and the factors promoting it. Here, we study phases of speciation using data from >100 populations of 11 species of Timema stick insects. Consistent with early phases of genic speciation, adaptive colour-pattern loci reside in localized genetic regions of accentuated differentiation between populations experiencing gene flow...
February 17, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28804255/a-phase-plane-analysis-of-localized-frictional-waves
#2
T Putelat, J H P Dawes, A R Champneys
Sliding frictional interfaces at a range of length scales are observed to generate travelling waves; these are considered relevant, for example, to both earthquake ground surface movements and the performance of mechanical brakes and dampers. We propose an explanation of the origins of these waves through the study of an idealized mechanical model: a thin elastic plate subject to uniform shear stress held in frictional contact with a rigid flat surface. We construct a nonlinear wave equation for the deformation of the plate, and couple it to a spinodal rate-and-state friction law which leads to a mathematically well-posed problem that is capable of capturing many effects not accessible in a Coulomb friction model...
July 2017: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28803050/the-arest-cf-experience-in-biobanking-more-than-just-tissues-tubes-and-time
#3
Luke W Garratt, Anthony Kicic, Colin Robertson, Sarath Ranganathan, Peter D Sly, Stephen M Stick
Research to further improve outcomes for people with CF is dependent upon well characterised, archived and accessible clinical specimens. The recent article by Beekman et al. published in Journal of Cystic Fibrosis summarised a scientific meeting at the 13th ECFS Basic Science Conference. This meeting discussed how well-annotated, clinical biobanks for CF could be established in Europe to meet the needs of therapeutic development. The Australian Respiratory Early Surveillance Team for Cystic Fibrosis (AREST CF) has conducted biobanking of CF research and clinical specimens since the late 1990s and is custodian of the most comprehensive paediatric CF biobank in the world that focuses on the first years of life...
August 9, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28803000/interaction-of-niobium-with-iron-oxide-colloids-and-the-role-of-humic-acid
#4
Madhusudan Ghosh, K K Swain, Rakesh Verma
In this work, we report the sorption of Nb on iron oxides and the effect of humic acid. Iron oxides viz. goethite, hematite and magnetite were chemically synthesised and characterised by X-ray diffraction, particle size, surface area and zeta potential measurement. The sorption of Nb on all the three iron oxides was low (∼40%) at pH 1, increased to ∼ 90% at pH 8 and decreased marginally above pH 8. The effect of humic acid on the sorption was very small. Thermodynamic parameters viz. activation energy, enthalpy, entropy, free energy and sticking probability were calculated to understand the mechanism of the sorption process...
August 10, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28802416/accuracy-of-valgus-osteotomy-using-dynamic-hip-screw
#5
Sunil G Kulkarni, G S Kulkarni, Sushrut Babhulkar, Milind G Kulkarni, Ruta M Kulkarni
BACKGROUND: Non-union of neck femur is a common but difficult situation to manage especially in young adults. There are two main options of arthroplasty or osteotomy. The aim of this study was to assess the results of intertrochanteric valgus osteotomy in non-union femoral neck fractures. PATIENTS AND METHODS: We present a study of 44 cases of neck femur non-union including untreated fractures, late presentations (more than 3 weeks), treated with compression screw, DHS...
August 2017: Injury
https://www.readbyqxmd.com/read/28802362/kallmann-syndrome-in-pediatric-otorhinolaryngology-practice-case-report-and-literature-review
#6
Karolina Dżaman, Karolina Zborowska-Piskadło, Mirosława Pietniczka-Załęska, Ireneusz Kantor
BACKGROUND: Kallmann syndrome (KS) is an isolated form of hypogonadotrophic hypogonadism (HH) in combination with a defect in olfactory function. The diagnosis of KS before maturation is often difficult to make due to the broad spectrum of presentation and genetic heterogeneities. ENT examination including smell test is essential for proper diagnosis of olfactory disturbances and non olfactory abnormalities in craniofacial region which may also be existent in KS. CASE: A 17-year-old girl admitted to ENT Department because of the olfactory sense disturbances since two years...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28799303/clinical-profile-of-dysphagia-in-patients-with-parkinson-s-disease-progressive-supranuclear-palsy-and-multiple-system-atrophy
#7
Sulena, Dipti Gupta, Anjani Kumar Sharma, Baltej Singh
BACKGROUND: Swallowing changes are commonly observed in Parkinson's and Parkinsonism plus syndromes. Expeditious identification is necessary to provide early intervention in this population to avoid risk of aspiration and swallowing complications. OBJECTIVE: To investigate swallowing problems using detailed case history and swallowing speed on 3 ounce water test in three groups i.e. PD, MSA and PSP groups and further, to compare it with control group. SUBJECT AND METHODS: Cross sectional study design...
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28797303/combined-antioxidant-effects-of-neem-extract-bacteria-red-blood-cells-and-lysozyme-possible-relation-to-periodontal-disease
#8
Leali Heyman, Yael Houri-Haddad, Samuel N Heyman, Isaac Ginsburg, Yossi Gleitman, Osnat Feuerstein
BACKGROUND: The common usage of chewing sticks prepared from Neem tree (Azadirachta indica) in India suggests its potential efficacy in periodontal diseases. The objective of this study is to explore the antibacterial effects of Neem leaf extract on the periodontophatic bacteria Porphyromonas gingivalis and Fusobacterium nucleatum, and its antioxidant capacities alone and in combination with bacteria and polycationic peptides that may be at the site of inflammation. METHODS: Neem leaf extract was prepared by ethanol extraction...
August 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28796683/vaginal-cleansing-before-cesarean-delivery-a-systematic-review-and-meta-analysis
#9
Claudia Caissutti, Gabriele Saccone, Fabrizio Zullo, Johanna Quist-Nelson, Laura Felder, Andrea Ciardulli, Vincenzo Berghella
OBJECTIVE: To assess the efficacy of vaginal cleansing before cesarean delivery in reducing postoperative endometritis. DATA SOURCES: MEDLINE, Ovid, EMBASE, Scopus, Clinicaltrials.gov, and Cochrane Library were searched from their inception to January 2017. METHODS OF STUDY SELECTION: Selection criteria included all randomized controlled trials comparing vaginal cleansing (ie, intervention group) with a control group (ie, either placebo or no intervention) in women undergoing cesarean delivery...
August 4, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28789539/angle-resolved-molecular-beam-scattering-of-no-at-the-gas-liquid-interface
#10
Amelia Zutz, David J Nesbitt
This study presents first results on angle-resolved, inelastic collision dynamics of thermal and hyperthermal molecular beams of NO at gas-liquid interfaces. Specifically, a collimated incident beam of supersonically cooled NO ((2)Π1/2, J = 0.5) is directed toward a series of low vapor pressure liquid surfaces ([bmim][Tf2N], squalane, and PFPE) at θinc = 45(1)°, with the scattered molecules detected with quantum state resolution over a series of final angles (θs = -60°, -30°, 0°, 30°, 45°, and 60°) via spatially filtered laser induced fluorescence...
August 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28783061/impact-of-biological-feedback-and-incentives-on-blood-fatty-acid-concentrations-including-omega-3-index-in-an-employer-based-wellness-program
#11
Michael I McBurney, Julia K Bird
Eicosapentaenoic acid (EPA, C20:5n-3) and docosahexaenoic acid (DHA, C22:6n-3) are important fatty acids for the retina and brain. More than 95% of Americans have suboptimal EPA + DHA blood concentrations. This cross-sectional employer-based study assessed whole blood fatty acid levels of volunteers participating in an onsite wellness biometric screening program and was designed to determine if an incentive, a $5 coupon for a 90-day supply of fish oil supplement typically costing $18-30, stimulated incremental dietary behavior change relative to nutritional status assessment alone to increase EPA + DHA concentrations...
August 5, 2017: Nutrients
https://www.readbyqxmd.com/read/28779987/a-novel-technique-for-the-visualization-of-tablet-punch-surfaces-characterization-of-surface-modification-wear-and-sticking
#12
Claudia Al-Karawi, Thomas Kaiser, Claudia S Leopold
The surface quality of tablets is strongly related to the surface quality of the tablet punch. Therefore, regular control of the punch surfaces is needed to determine the surface properties, the wear status and sticking tendency of the punches. The aim of the present study was to develop and evaluate a new technique to visualize and evaluate tablet punch surfaces using high-resolution impression molding combined with 3D surface analysis. Standardized 3D surface texture parameters were analyzed by principal component analysis (PCA) to characterized differently surface-modified punches, punches with different wear status and the sticking pattern on the punch surfaces...
August 3, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28779961/the-effect-of-swaddling-on-pain-vital-signs-and-crying-duration-during-heel-lance-in-newborns
#13
Zeynep Erkut, Suzan Yildiz
To determine the effect of swaddling on pain, vital signs, and crying duration during heel lance in the newborn. This was a randomized controlled study of 74 (control: 37, experiment: 37) newborns born between December 2013 and February 2014 at the Ministry of Health Bagcılar Training and Research Hospital. An information form, observation form, and Neonatal Infant Pain Scale were used as data collection tools. Data from the pain scores, peak heart rates, oxygen saturation, total crying time, and duration of the procedure were collected using a video camera...
August 2, 2017: Pain Management Nursing: Official Journal of the American Society of Pain Management Nurses
https://www.readbyqxmd.com/read/28776096/influence-of-radiotherapy-on-the-dentin-properties-and-bond-strength
#14
Renata Borges Rodrigues, Carlos José Soares, Paulo Cézar Simamoto Junior, Vitor Carvalho Lara, Victor Elias Arana-Chavez, Veridiana Resende Novais
OBJECTIVES: The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). MATERIAL AND METHODS: Dentin chemical composition (infrared spectroscopy-FTIR), SEM images, and mechanical properties (Vickers microhardness-VHN and elastic modulus-E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water...
August 4, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28775104/challenging-airway-in-a-paediatric-patient-impaled-by-a-freezer-pop-stick
#15
Edward J Park, Alexandra G Espinel, Rahul K Shah, Srijaya K Reddy
No abstract text is available yet for this article.
August 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28774952/vitamin-d-supplementation-of-initially-vitamin-d-deficient-mice-diminishes-lung-inflammation-with-limited-effects-on-pulmonary-epithelial-integrity
#16
Shelley Gorman, Alysia G Buckley, Kak-Ming Ling, Luke J Berry, Vanessa S Fear, Stephen M Stick, Alexander N Larcombe, Anthony Kicic, Prue H Hart
In disease settings, vitamin D may be important for maintaining optimal lung epithelial integrity and suppressing inflammation, but less is known of its effects prior to disease onset. Female BALB/c dams were fed a vitamin D3-supplemented (2280 IU/kg, VitD(+)) or nonsupplemented (0 IU/kg, VitD(-)) diet from 3 weeks of age, and mated at 8 weeks of age. Male offspring were fed the same diet as their mother. Some offspring initially fed the VitD(-) diet were switched to a VitD(+) diet from 8 weeks of age (VitD(-/+))...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28773119/a-new-biphasic-dicalcium-silicate-bone-cement-implant
#17
Fausto Zuleta, Angel Murciano, Sergio A Gehrke, José E Maté-Sánchez de Val, José L Calvo-Guirado, Piedad N De Aza
This study aimed to investigate the processing parameters and biocompatibility of a novel biphasic dicalcium silicate (C₂S) cement. Biphasic α´L + β-C₂Sss was synthesized by solid-state processing, and was used as a raw material to prepare the cement. In vitro bioactivity and biocompatibility studies were assessed by soaking the cement samples in simulated body fluid (SBF) and human adipose stem cell cultures. Two critical-sized defects of 6 mm Ø were created in 15 NZ tibias. A porous cement made of the high temperature forms of C₂S, with a low phosphorous substitution level, was produced...
July 6, 2017: Materials
https://www.readbyqxmd.com/read/28769717/an-elusive-neotropical-giant-hondurantemna-chespiritoi-gen-n-sp-n-antemninae-mantidae-a-new-lineage-of-mantises-exhibiting-an-ontogenetic-change-in-cryptic-strategy
#18
Henrique M Rodrigues, Julio Rivera, Neil Reid, Gavin J Svenson
We present the description of a new genus and new species of praying mantis, Hondurantemna chespiritoigen. n. & sp. n. This species of cryptic mantis, collected in National parks in Mexico and Honduras, remained unknown despite its considerable body size. Based on a phylogenetic analysis with molecular data and traditional morphological analysis, we place this new genus within Antemninae, a monotypic Mantidae subfamily. We update the subfamily concept for Antemninae and provide a key to the two genera. We describe the external morphology of immatures and adults of the new species as well as the genital complexes of both sexes and the ootheca of Antemna rapax...
2017: ZooKeys
https://www.readbyqxmd.com/read/28765425/testing-for-blood-borne-viruses-after-a-needle-stick-injury-in-patients-who-lack-the-capacity-to-consent
#19
Rajeka Lazarus
No abstract text is available yet for this article.
July 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28764536/nanorocks-design-and-performance-of-an-experiment-studying-planet-formation-on-the-international-space-station
#20
Julie Brisset, Joshua Colwell, Adrienne Dove, Doug Maukonen
In an effort to better understand the early stages of planet formation, we have developed a 1.5U payload that flew on the International Space Station (ISS) in the NanoRacks NanoLab facility between September 2014 and March 2016. This payload, named NanoRocks, ran a particle collision experiment under long-term microgravity conditions. The objectives of the experiment were (a) to observe collisions between mm-sized particles at relative velocities of < 1 cm/s and (b) to study the formation and disruption of particle clusters for different particle types and collision velocities...
July 2017: Review of Scientific Instruments
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