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https://www.readbyqxmd.com/read/28328240/insights-on-cryopreserved-sheep-fibroblasts-by-cryomicroscopy-and-gene-expression-analysis
#1
Antonella Idda, Daniela Bebbere, Giuseppina Corona, Laura Masala, Elisa Casula, Alberto Cincotti, Sergio Ledda
Cryopreservation includes a set of techniques aimed at storing biological samples and preserving their biochemical and functional features without any significant alterations. This study set out to investigate the effects induced by cryopreservation on cultured sheepskin fibroblasts (CSSF) through cryomicroscopy and gene expression analysis after subsequent in vitro culture. CSSF cells were cryopreserved in a cryomicroscope (CM) or in a straw programmable freezer (SPF) using a similar thermal profile (cooling rate -5°C/min to -120°C, then -150°C/min to -196°C)...
March 22, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/28326784/drop-impact-on-oblique-superhydrophobic-surfaces-with-two-tier-roughness
#2
Rui Zhang, Pengfei Hao, Feng He
This paper investigates the complex physical phenomenon of oblique drop impact on superhydrophobic substrates with two-tier roughness (patterned with varied submillimeter-scale posts and coated with nano-particles). Experimental results show that the impact Weber number of drops and the solid fraction of the submillimeter-scale post structures are crucial for the outcomes of oblique drop collisions. Water droplets with 10<Wen<245 are found to rebound on all the test substrates. As the surface solid fraction decreases, four possible bouncing patterns occur in sequence, sliding rebound, stretched rebound, penetration rebound and breakup rebound...
March 22, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28326040/effects-of-topical-icing-on-inflammation-angiogenesis-revascularization-and-myofiber-regeneration-in-skeletal-muscle-following-contusion-injury
#3
Daniel P Singh, Zohreh Barani Lonbani, Maria A Woodruff, Tony J Parker, Roland Steck, Jonathan M Peake
Contusion injuries in skeletal muscle commonly occur in contact sport and vehicular and industrial workplace accidents. Icing has traditionally been used to treat such injuries under the premise that it alleviates pain, reduces tissue metabolism, and modifies vascular responses to decrease swelling. Previous research has examined the effects of icing on inflammation and microcirculatory dynamics following muscle injury. However, whether icing influences angiogenesis, collateral vessel growth, or myofiber regeneration remains unknown...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28326004/effect-of-inulin-and-glycerol-supplementation-on-physicochemical-properties-of-probiotic-frozen-yogurt
#4
Hafiz Shehzad Muzammil, Barbara Rasco, Shyam Sablani
The present study was designed to investigate the effects of inulin and glycerol supplementation on physicochemical properties of probiotic frozen yogurt. Frozen yogurt was prepared with different types of probiotic (Lactobacillus acidophilus and Bifidobacterium lactis) along with yogurt starter culture (Streptococcus thermophilus and Lactobacillus bulgaricus). The frozen yogurt mixture was supplemented with inulin (2%, 4%, and 6%) and glycerol (1%, 2%, 3%, and 4%). The results showed that inulin 4% and 6% supplementation increased the overrun by 3% and 5% and the glass transition temperature by 3...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28325893/a-robust-empirical-seasonal-prediction-of-winter-nao-and-surface-climate
#5
L Wang, M Ting, P J Kushner
A key determinant of winter weather and climate in Europe and North America is the North Atlantic Oscillation (NAO), the dominant mode of atmospheric variability in the Atlantic domain. Skilful seasonal forecasting of the surface climate in both Europe and North America is reflected largely in how accurately models can predict the NAO. Most dynamical models, however, have limited skill in seasonal forecasts of the winter NAO. A new empirical model is proposed for the seasonal forecast of the winter NAO that exhibits higher skill than current dynamical models...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325842/surface-changes-on-comet-67p-churyumov-gerasimenko-suggest-a-more-active-past
#6
M Ramy El-Maarry, O Groussin, N Thomas, M Pajola, A-T Auger, B Davidsson, X Hu, S F Hviid, J Knollenberg, C Güttler, C Tubiana, S Fornasier, C Feller, P Hasselmann, J-B Vincent, H Sierks, C Barbieri, P Lamy, R Rodrigo, D Koschny, H U Keller, H Rickman, M F A'Hearn, M A Barucci, J-L Bertaux, I Bertini, S Besse, D Bodewits, G Cremonese, V Da Deppo, S Debei, M De Cecco, J Deller, J D P Deshapriya, M Fulle, P J Gutierrez, M Hofmann, W-H Ip, L Jorda, G Kovacs, J-R Kramm, E Kührt, M Küppers, L M Lara, M Lazzarin, Z-Yi Lin, J J Lopez Moreno, S Marchi, F Marzari, S Mottola, G Naletto, N Oklay, A Pommerol, F Preusker, F Scholten, X Shi
The Rosetta spacecraft spent ~2 years orbiting comet 67P/Churyumov-Gerasimenko, most of it at distances that allowed surface characterization and monitoring at submeter scales. From December 2014 to June 2016, numerous localized changes were observed, which we attribute to cometary-specific weathering, erosion, and transient events driven by exposure to sunlight and other processes. While the localized changes suggest compositional or physical heterogeneity, their scale has not resulted in substantial alterations to the comet's landscape...
March 21, 2017: Science
https://www.readbyqxmd.com/read/28325737/measures-matter-the-local-exposure-isolation-lex-is-metrics-and-relationships-between-local-level-segregation-and-breast-cancer-survival
#7
EDITORIAL
Amin Bemanian, Kirsten M M Beyer
Background: The Black-to-White disparity in breast cancer survival is increasing, and racial residential segregation is a potential driver for this trend. However, study findings have been mixed, and no study has comprehensively compared the effectiveness of different local-level segregation metrics in explaining cancer survival.Methods: We proposed a set of new local segregation metrics named local exposure and isolation (LEx/Is) and compared our new local isolation metric with two related metrics, the location quotient (LQ) and the index of concentration at extremes (ICE), across the 102 largest U...
March 21, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28325173/patterns-and-processes-influencing-helminth-parasites-of-arctic-coastal-communities-during-climate-change
#8
K V Galaktionov
This review analyses the scarce available data on biodiversity and transmission of helminths in Arctic coastal ecosystems and the potential impact of climate changes on them. The focus is on the helminths of seabirds, dominant parasites in coastal ecosystems. Their fauna in the Arctic is depauperate because of the lack of suitable intermediate hosts and unfavourable conditions for species with free-living larvae. An increasing proportion of crustaceans in the diet of Arctic seabirds would result in a higher infection intensity of cestodes and acanthocephalans, and may also promote the infection of seabirds with non-specific helminths...
March 22, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28323792/the-effect-of-intermittent-vest-cooling-on-thermoregulation-and-cardiovascular-strain-in-baseball-catchers
#9
Stacy Bishop, David J Szymanski, Greg A Ryan, Robert L Herron, Phil A Bishop
Baseball catchers are exposed to multiple physiological challenges while playing outside during the spring and summer months, many of which deal with recovery and thermoregulation. The purpose of this study was to investigate the effect of intermittent cooling on core temperature, cardiovascular strain, exertion, and recovery during a simulated catching performance in the heat. Six trained college-aged baseball catchers performed in a controlled, hot (35 °C) and humid (25% relative humidity) environment in a counter-balanced, cross-over design...
March 20, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28323429/is-high-density-amorphous-ice-simply-a-derailed-state-along-the-ice-i-to-ice-iv-pathway
#10
Jacob James Shephard, Sanliang Ling, Gabriele Cesare Sosso, Angelos Michaelides, Ben Slater, Christoph G Salzmann
The structural nature of high-density amorphous ice (HDA), which forms through low-temperature pressure-induced amorphization of the 'ordinary' ice I, is heavily debated. Clarifying this question is not only important for understanding the complex condensed states of H2O but also in the wider context of pressure-induced amorphization processes, which are encountered across the entire materials spectrum. We first show that ammonium fluoride (NH4F), which has a similar hydrogen-bonded network to ice I, also undergoes a pressure collapse upon compression at 77 K...
March 21, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28323070/urbanization-and-the-dynamics-of-rna-viruses-in-mallards-anas-platyrhynchos
#11
Michelle Wille, Kristine Lindqvist, Shaman Muradrasoli, Björn Olsen, Josef D Järhult
Urbanization is intensifying worldwide, and affects the epidemiology of infectious diseases. However, the effect of urbanization on natural host-pathogen systems remains poorly understood. Urban ducks occupy an interesting niche in that they directly interact with both humans and wild migratory birds, and either directly or indirectly with food production birds. Here we have collected samples from Mallards residing in a pond in central Uppsala, Sweden, from January 2013 to January 2014. This artificial pond is kept ice-free during the winter months, and is a popular location where the ducks are fed, resulting in a resident population of ducks year-round...
March 17, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28321363/high-unexpected-genetic-diversity-of-a-narrow-endemic-terrestrial-mollusc
#12
Pedro M Madeira, Rosa M Chefaoui, Regina L Cunha, Francisco Moreira, Susana Dias, Gonçalo Calado, Rita Castilho
The Iberian Peninsula has an extensive record of species displaying strong genetic structure as a result of their survival in isolated pockets throughout the Pleistocene ice ages. We used mitochondrial and nuclear sequence data to analyze phylogeographic patterns in endemic land snails from a valley of central Portugal (Vale da Couda), putatively assigned to Candidula coudensis, that show an exceptionally narrow distributional range. The genetic survey presented here shows the existence of five main mitochondrial lineages in Vale da Couda that do not cluster together suggesting independent evolutionary histories...
2017: PeerJ
https://www.readbyqxmd.com/read/28320154/advances-in-assessing-myotonia-can-sensor-engineered-glove-have-a-role
#13
Simona Portaro, Margherita Russo, Antonino Naro, Alessia Bramanti, Placido Bramanti, Carmelo Rodolico, Rocco Salvatore Calabrò
Non-dystrophic (NDMs) and Dystrophic Myotonias (DMs) are diseases characterized by the presence of myotonia with or without muscle weakness. A standardized myotonia assessment is important to more objectively quantify the handgrip myotonia. We screened 10 patients affected by NDM and 10 patients with DM, using the sensor-engineered glove (SEG). The time required to perform a complete finger extension (grip myotonia time, GMT) at maximum velocity (MV) after maximum voluntary contraction (MVC) was evaluated through an ad hoc protocol including rest, exercise, and ice effects on handgrip myotonia...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28316469/physical-and-sensory-properties-of-ice-cream-containing-fermented-pepper-powder
#14
Su-Jung Yeon, Ji-Han Kim, Go-Eun Hong, Woojoon Park, Soo-Ki Kim, Han-Geuk Seo, Chi-Ho Lee
This study was conducted to investigate the physical and sensory properties of ice cream containing fermented pepper powder. Three ice cream formulas were manufactured: 1, control; 2, supplemented with 0.1% fermented pepper powder; and 3, supplemented with 0.2% fermented pepper powder. Formulas 2 and 3 had significantly higher viscosity and lower overrun than formula 1 (p<0.05). Additionally, ice creams supplemented with fermented pepper powder were harder and maintained their forms longer than the controls...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28316346/invasion-trajectory-of-pacific-oysters-in-the-northern-wadden-sea
#15
Karsten Reise, Christian Buschbaum, Heike Büttger, Johannes Rick, K Mathias Wegner
Invasion trajectories of introduced alien species usually begin with a long establishment phase of low abundance, often followed by exponential expansion and subsequent adjustment phases. We review the first 26 years of feral Pacific oysters Crassostrea gigas around the island of Sylt in the Wadden Sea (North Sea, NE Atlantic), and reveal causal conditions for the invasion phases. Sea-based oyster farming with repeated introductions made establishment of feral oysters almost inevitable. Beds of mussels Mytilus edulis on mud flats offered firm substrate for attachment and ideal growth conditions around low tide level...
2017: Marine Biology
https://www.readbyqxmd.com/read/28315320/controlled-ice-nucleation-using-freeze-dried-pseudomonas-syringae-encapsulated-in-alginate-beads
#16
Lindong Weng, Shannon N Tessier, Anisa Swei, Shannon L Stott, Mehmet Toner
The control of ice nucleation is of fundamental significance in many process technologies related to food and pharmaceutical science and cryobiology. Mechanical perturbation, electromagnetic fields and ice-nucleating agents (INAs) have been known to induce ice nucleation in a controlled manner. But these ice-nucleating methods may suffer from cumbersome manual operations, safety concerns of external fields, and biocompatibility and recovery issues of INA particles, especially when used in living systems. Given the automatic ice-seeding nature of INAs, a promising solution to overcome some of the above limitations is to engineer a biocomposite that accommodates the INA particles but minimizes their interactions with biologics, as well as enabling the recovery of used particles...
March 14, 2017: Cryobiology
https://www.readbyqxmd.com/read/28314695/a-systematic-review-of-cost-effective-treatment-of-postoperative-rotator-cuff-repairs
#17
REVIEW
Rebecca N Dickinson, John E Kuhn, Jamie L Bergner, Katherine H Rizzone
OBJECTIVE: The Bundled Payments for Care Improvement initiative combines payment of multiple services for episodes of care into 1 bundle. Rotator cuff repair is a likely candidate for future inclusion. The objective of this study was to determine cost-effective, high-quality postoperative rehabilitation dosing and cryotherapy for patients undergoing rotator cuff repair based on systematic review of the literature. METHODS: Systematic review of level I and level II articles was performed in PubMed, Cochrane Databases, and PEDro...
March 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28314231/sea-salt-sodium-record-from-talos-dome-east-antarctica-as-a-potential-proxy-of-the-antarctic-past-sea-ice-extent
#18
M Severi, S Becagli, L Caiazzo, V Ciardini, E Colizza, F Giardi, K Mezgec, C Scarchilli, B Stenni, E R Thomas, R Traversi, R Udisti
Antarctic sea ice has shown an increasing trend in recent decades, but with strong regional differences from one sector to another of the Southern Ocean. The Ross Sea and the Indian sectors have seen an increase in sea ice during the satellite era (1979 onwards). Here we present a record of ssNa(+) flux in the Talos Dome region during a 25-year period spanning from 1979 to 2003, showing that this marker could be used as a potential proxy for reconstructing the sea ice extent in the Ross Sea and Western Pacific Ocean at least for recent decades...
March 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28306315/hard-two-photon-contribution-to-elastic-lepton-proton-scattering-determined-by-the-olympus-experiment
#19
B S Henderson, L D Ice, D Khaneft, C O'Connor, R Russell, A Schmidt, J C Bernauer, M Kohl, N Akopov, R Alarcon, O Ates, A Avetisyan, R Beck, S Belostotski, J Bessuille, F Brinker, J R Calarco, V Carassiti, E Cisbani, G Ciullo, M Contalbrigo, R De Leo, J Diefenbach, T W Donnelly, K Dow, G Elbakian, P D Eversheim, S Frullani, Ch Funke, G Gavrilov, B Gläser, N Görrissen, D K Hasell, J Hauschildt, Ph Hoffmeister, Y Holler, E Ihloff, A Izotov, R Kaiser, G Karyan, J Kelsey, A Kiselev, P Klassen, A Krivshich, I Lehmann, P Lenisa, D Lenz, S Lumsden, Y Ma, F Maas, H Marukyan, O Miklukho, R G Milner, A Movsisyan, M Murray, Y Naryshkin, R Perez Benito, R Perrino, R P Redwine, D Rodríguez Piñeiro, G Rosner, U Schneekloth, B Seitz, M Statera, A Thiel, H Vardanyan, D Veretennikov, C Vidal, A Winnebeck, V Yeganov
The OLYMPUS Collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, R_{2γ}, a direct measure of the contribution of hard two-photon exchange to the elastic cross section. In the OLYMPUS measurement, 2.01 GeV electron and positron beams were directed through a hydrogen gas target internal to the DORIS storage ring at DESY. A toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight scintillators detected elastically scattered leptons in coincidence with recoiling protons over a scattering angle range of ≈20° to 80°...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28302989/bacterial-microbiota-associated-with-the-glacier-ice-worm-is-dominated-by-both-worm-specific-and-glacier-derived-facultative-lineages
#20
Takumi Murakami, Takahiro Segawa, Roman Dial, Nozomu Takeuchi, Shiro Kohshima, Yuichi Hongoh
The community structure of bacteria associated with the glacier ice worm Mesenchytraeus solifugus was analyzed by amplicon sequencing of 16S rRNA genes and their transcripts. Ice worms were collected from two distinct glaciers in Alaska, Harding Icefield and Byron Glacier, and glacier surfaces were also sampled for comparison. Marked differences were observed in bacterial community structures between the ice worm and glacier surface samples. Several bacterial phylotypes were detected almost exclusively in the ice worms, and these bacteria were phylogenetically affiliated with either animal-associated lineages or, interestingly, clades mostly consisting of glacier-indigenous species...
March 9, 2017: Microbes and Environments
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