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https://www.readbyqxmd.com/read/28622962/synergistic-structures-from-magnetic-freeze-casting-with-surface-magnetized-alumina-particles-and-platelets
#1
Michael B Frank, Sze Hei Siu, Keyur Karandikar, Chin-Hung Liu, Steven E Naleway, Michael M Porter, Olivia A Graeve, Joanna McKittrick
Magnetic freeze casting utilizes the freezing of water, a low magnetic field and surface magnetized materials to make multi-axis strengthened porous scaffolds. A much greater magnetic moment was measured for larger magnetized alumina platelets compared with smaller particles, which indicated that more platelet aggregation occurred within slurries. This led to more lamellar wall alignment along the magnetic field direction during magnetic freeze casting at 75 mT. Slurries with varying ratios of magnetized particles to platelets (0:1, 1:3, 1:1, 3:1, 7:1, 1:0) produced porous scaffolds with different structural features and degrees of lamellar wall alignment...
June 3, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28605077/highly-flexible-and-efficient-solar-steam-generation-device
#2
Chaoji Chen, Yiju Li, Jianwei Song, Zhi Yang, Yudi Kuang, Emily Hitz, Chao Jia, Amy Gong, Feng Jiang, J Y Zhu, Bao Yang, Jia Xie, Liangbing Hu
Solar steam generation with subsequent steam recondensation has been regarded as one of the most promising techniques to utilize the abundant solar energy and sea water or other unpurified water through water purification, desalination, and distillation. Although tremendous efforts have been dedicated to developing high-efficiency solar steam generation devices, challenges remain in terms of the relatively low efficiency, complicated fabrications, high cost, and inability to scale up. Here, inspired by the water transpiration behavior of trees, the use of carbon nanotube (CNT)-modified flexible wood membrane (F-Wood/CNTs) is demonstrated as a flexible, portable, recyclable, and efficient solar steam generation device for low-cost and scalable solar steam generation applications...
June 12, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28605018/contrasting-drivers-of-reproductive-ageing-in-albatrosses
#3
Hannah Froy, Sue Lewis, Daniel H Nussey, Andrew G Wood, Richard A Phillips
1.Age-related variation in reproductive performance is ubiquitous in wild vertebrate populations and has important consequences for population and evolutionary dynamics. 2.The ageing trajectory is shaped by both within-individual processes, such as improvement and senescence, and by the among-individual effects of selective appearance and disappearance. To date, few studies have compared the role of these different drivers among species or populations. 3.In this study, we use nearly 40 years of longitudinal monitoring data to contrast the within- and among-individual processes contributing to the reproductive ageing patterns in three albatross species (two biennial and one annual breeder), and test whether these can be explained by differences in life-histories...
June 12, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28584876/on-the-nature-of-directed-behavior-to-drug-associated-light-cues-in-rhesus-monkeys-macaca-mulatta
#4
Mark P Reilly, Sonja I Berndt, James H Woods
The present study investigated the role of drug-paired stimuli in controlling the behavior of rhesus monkeys. Systematic observations were made with nine monkeys who had a history of drug self-administration; they had been lever pressing to produce intravenous infusions of various drugs. These observations revealed that the stimulus light co-occurring with drug infusion produced robust and cue-directed behavior such as orienting, touching and biting. Experiment 1 showed that this light-directed behavior would occur in naïve monkeys exposed to a Pavlovian pairing procedure...
November 2016: Behavior Analysis (Washington, D.C.)
https://www.readbyqxmd.com/read/28578413/dna-methylation-in-schizophrenia-in-different-patient-derived-cell-types
#5
Alejandra M Vitale, Nicholas A Matigian, Alexandre S Cristino, Katia Nones, Sugandha Ravishankar, Bernadette Bellette, Yongjun Fan, Stephen A Wood, Ernst Wolvetang, Alan Mackay-Sim
DNA methylation of gene promoter regions represses transcription and is a mechanism via which environmental risk factors could affect cells during development in individuals at risk for schizophrenia. We investigated DNA methylation in patient-derived cells that might shed light on early development in schizophrenia. Induced pluripotent stem cells may reflect a "ground state" upon which developmental and environmental influences would be minimal. Olfactory neurosphere-derived cells are an adult-derived neuro-ectodermal stem cell modified by developmental and environmental influences...
January 23, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28560252/dna-methylation-in-schizophrenia-in-different-patient-derived-cell-types
#6
Alejandra M Vitale, Nicholas A Matigian, Alexandre S Cristino, Katia Nones, Sugandha Ravishankar, Bernadette Bellette, Yongjun Fan, Stephen A Wood, Ernst Wolvetang, Alan Mackay-Sim
DNA methylation of gene promoter regions represses transcription and is a mechanism via which environmental risk factors could affect cells during development in individuals at risk for schizophrenia. We investigated DNA methylation in patient-derived cells that might shed light on early development in schizophrenia. Induced pluripotent stem cells may reflect a "ground state" upon which developmental and environmental influences would be minimal. Olfactory neurosphere-derived cells are an adult-derived neuro-ectodermal stem cell modified by developmental and environmental influences...
2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28550949/freshwater-lenses-as-ecological-and-population-sustenance-case-study-in-the-coastal-wetland-of-samboromb%C3%A3-n-bay-argentina
#7
Carolina Tanjal, Eleonora Carol, Sebastián Richiano, Lucía Santucci
Freshwater lenses associated to shell ridges and sand sheets exist on the coastal wetland of Samborombón Bay. As they constitute one of the most vulnerable aquifer systems, it is the aim of this study to determine the hydrogeochemical processes that condition the chemical quality of its groundwater and to assess their present and future capability as sustenance of native woods and local villagers. To achieve this, hydrogeomorphological field surveys were made and groundwater samples were taken. Results show that lenses have a mean thickness of 12m and its chemical quality depends on the dissolution of CO2(g) and carbonates, weathering of silicates and ion exchange...
May 24, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28542660/-trichomycosis-trichobacteriosis-capitis-in-an-infant-microbiological-dermoscopic-and-ultrastructural-features
#8
Alexandro Bonifaz, Ixchel Ramírez-Ricarte, Alejandra Rodríguez-Leviz, Marco A Hernández, Carlos Mena, Adriana Valencia
Trichomycosis is a superficial infection caused by Corynebacterium flavescens, which regularly affects axillary, and to a a lesser extent, pubic, scrotal and intergluteal, and exceptionally, head hairs or trichomycosis capitis (TC). This condition is characterised by the formation of bacterial nodules. Clinically, it can be confused with white piedra or pediculosis. The diagnosis is made by microscopic and dermoscopic observation and confirmed by culture. OBJECTIVE: To present a case of TC in an infant and illustrate the microscopic, dermoscopic, and ultrastructural characteristics...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28541080/state-special-education-criteria-for-identifying-intellectual-disability-a-review-following-revised-diagnostic-criteria-and-rosa-s-law
#9
Patrick J McNicholas, Randy G Floyd, Isaac L Woods, Leah J Singh, Meredith S Manguno, Kathrin E Maki
Across the last century, the condition known as intellectual disability (ID) has been labeled by assorted terms, its key features have varied, and recommendations for its identification have been divided. In light of recent changes to the diagnostic criteria for ID and to federal legislation, this study was designed to compile and summarize information about the state special education criteria for this condition and its associated assessment process, as they guide school-based and associated practices. Authors independently double-coded components of all ID regulations and guidelines from the 50 United States and the District of Columbia in pairs, which was then checked and corrected for inconsistencies...
May 25, 2017: School Psychology Quarterly
https://www.readbyqxmd.com/read/28535952/the-effects-of-different-opacifiers-on-the-translucency-of-experimental-dental-composite-resins
#10
Karine Haas, Gulelala Azhar, Duncan J Wood, Keyvan Moharamzadeh, Richard van Noort
OBJECTIVE: The aim of this study was to evaluate the effects of different opacifiers on the translucency of experimental dental composite-resins. METHODS: Three metal oxides that are used as opacifiers were tested in this study: titanium oxide (TiO2), aluminium oxide (Al2O3) and zirconium oxide (ZrO2). Experimental composite-resins were fabricated containing 25wt.% urethane dimethacrylate (UDMA)-based resin matrix and 75% total filler including different concentrations of metal oxides (0, 0...
May 20, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28532267/body-disposal
#11
Jonghan Sea, Eric Beauregard
This study explores the body disposal patterns in a sample of 54 Korean homicides that occurred between 2006 and 2012. Based on information collected by the police during their investigation, factors that could influence body disposal patterns were examined, such as homicide classification, intention, whether an accomplice was present, and offender mental disorder. Bivariate analyses showed that the majority of the victims who were disposed of were acquaintances of the offenders. Moreover, several offenders were more likely to dispose of the dead body "within hours" of killing the victim...
February 1, 2017: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/28500228/a-liana-from-the-lower-miocene-of-panama-and-the-fossil-record-of-connaraceae
#12
Nathan A Jud, Chris W Nelson
PREMISE OF THE STUDY: Permineralized wood is common in the Miocene beds exposed during the expansion of the Panama Canal. We describe a stem with the distinctive anatomy of a liana and evaluate the evolutionary, biogeographic, and ecological significance of this discovery. METHODS: The object of the study was obtained from a collection of fossil woods and fruits from a locality in the lower Miocene Cucaracha Formation, where the formation is exposed by the Culebra Cut of the Panama Canal...
May 12, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28499698/dental-microwear-and-pliocene-paleocommunity-ecology-of-bovids-primates-rodents-and-suids-at-kanapoi
#13
Peter S Ungar, Elicia F Abella, Jenny H E Burgman, Ignacio A Lazagabaster, Jessica R Scott, Lucas K Delezene, Fredrick K Manthi, J Michael Plavcan, Carol V Ward
Reconstructions of habitat at sites like Kanapoi are key to understanding the environmental circumstances in which hominins evolved during the early Pliocene. While Australopithecus anamensis shows evidence of terrestrial bipedality traditionally associated with a more open setting, its enamel has low δ(13)C values consistent with consumption of C3 foods, which predominate in wooded areas of tropical Africa. Habitat proxies, ranging from paleosols and their carbonates to associated herbivore fauna and their carbon isotope ratios, suggest a heterogeneous setting with both grass and woody plant components, though the proportions of each have been difficult to pin down...
May 9, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28494281/using-%C3%AE-dn-alkane-as-a-proxy-for-paleo-environmental-reconstruction-a-good-choice-to-sample-at-the-site-dominated-by-woods
#14
Jinzhao Liu, Zhisheng An, Zheng Wang, Huawu Wu
Some studies have demonstrated that leaf wax δDn-alkane values for a single species varied significantly with seasons. However, it is still not clear that the seasonality patterns of leaf wax δDn-alkane values in higher plants. Meanwhile, few efforts have been pursued to assess the effect of the light slopes (sunny vs. cloudy) on leaf wax δDn-alkane values. In this study, we systematically investigated plant wax δDn-alkane values and soil n-alkane δD values along different light slopes in different seasons (spring vs...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28489935/indoor-residual-spraying-with-micro-encapsulated-pirimiphos-methyl-actellic%C3%A2-300cs-against-malaria-vectors-in-the-lake-victoria-basin-tanzania
#15
Fabian M Mashauri, Alphaxard Manjurano, Safari Kinung'hi, Jackline Martine, Eric Lyimo, Coleman Kishamawe, Chacha Ndege, Mahdi M Ramsan, Adeline Chan, Charles D Mwalimu, John Changalucha, Stephen Magesa
BACKGROUND: The indoor residual spraying programme for malaria vectors control was implemented in four districts of the Lake Victoria basin of Tanzania namely Ukerewe, Sengerema, Rorya andSerengeti. Entomological monitoring activities were implemented in one sentinel village in each district to evaluate the efficacy of pirimiphos-methyl 300 CS sprayed on different wall surfaces and its impact against malaria vectors post-IRS intervention. METHODS: The residual decay rate of p-methyl 300 CS applied at a target dosage of 1g a...
2017: PloS One
https://www.readbyqxmd.com/read/28485923/enabling-high-areal-capacity-lithium-sulfur-batteries-designing-anisotropic-and-low-tortuosity-porous-architectures
#16
Yiju Li, Kun Kelvin Fu, Chaoji Chen, Wei Luo, Tingting Gao, Shaomao Xu, Jiaqi Dai, Glenn Pastel, Yanbin Wang, Boyang Liu, Jianwei Song, Yanan Chen, Chunpeng Yang, Liangbing Hu
Lithium-sulfur (Li-S) batteries have attracted much attention due to their high theoretical energy density in comparison to conventional state-of-the-art lithium-ion batteries. However, low sulfur mass loading in the cathode results in low areal capacity and impedes the practical use of Li-S cells. Inspired by wood, a cathode architecture with natural, three-dimensionally (3D) aligned microchannels filled with reduced graphene oxide (RGO) were developed as an ideal structure for high sulfur mass loading. Compared with other carbon materials, the 3D porous carbon matrix has several advantages including low tortuosity, high electrical conductivity, and good structural stability, which make it an excellent 3D lightweight current collector...
May 12, 2017: ACS Nano
https://www.readbyqxmd.com/read/28481341/genome-sequencing-and-population-genomic-analyses-provide-insights-into-the-adaptive-landscape-of-silver-birch
#17
Jarkko Salojärvi, Olli-Pekka Smolander, Kaisa Nieminen, Sitaram Rajaraman, Omid Safronov, Pezhman Safdari, Airi Lamminmäki, Juha Immanen, Tianying Lan, Jaakko Tanskanen, Pasi Rastas, Ali Amiryousefi, Balamuralikrishna Jayaprakash, Juhana I Kammonen, Risto Hagqvist, Gugan Eswaran, Viivi Helena Ahonen, Juan Alonso Serra, Fred O Asiegbu, Juan de Dios Barajas-Lopez, Daniel Blande, Olga Blokhina, Tiina Blomster, Suvi Broholm, Mikael Brosché, Fuqiang Cui, Chris Dardick, Sanna E Ehonen, Paula Elomaa, Sacha Escamez, Kurt V Fagerstedt, Hiroaki Fujii, Adrien Gauthier, Peter J Gollan, Pauliina Halimaa, Pekka I Heino, Kristiina Himanen, Courtney Hollender, Saijaliisa Kangasjärvi, Leila Kauppinen, Colin T Kelleher, Sari Kontunen-Soppela, J Patrik Koskinen, Andriy Kovalchuk, Sirpa O Kärenlampi, Anna K Kärkönen, Kean-Jin Lim, Johanna Leppälä, Lee Macpherson, Juha Mikola, Katriina Mouhu, Ari Pekka Mähönen, Ülo Niinemets, Elina Oksanen, Kirk Overmyer, E Tapio Palva, Leila Pazouki, Ville Pennanen, Tuula Puhakainen, Péter Poczai, Boy J H M Possen, Matleena Punkkinen, Moona M Rahikainen, Matti Rousi, Raili Ruonala, Christiaan van der Schoot, Alexey Shapiguzov, Maija Sierla, Timo P Sipilä, Suvi Sutela, Teemu H Teeri, Arja I Tervahauta, Aleksia Vaattovaara, Jorma Vahala, Lidia Vetchinnikova, Annikki Welling, Michael Wrzaczek, Enjun Xu, Lars G Paulin, Alan H Schulman, Martin Lascoux, Victor A Albert, Petri Auvinen, Ykä Helariutta, Jaakko Kangasjärvi
Silver birch (Betula pendula) is a pioneer boreal tree that can be induced to flower within 1 year. Its rapid life cycle, small (440-Mb) genome, and advanced germplasm resources make birch an attractive model for forest biotechnology. We assembled and chromosomally anchored the nuclear genome of an inbred B. pendula individual. Gene duplicates from the paleohexaploid event were enriched for transcriptional regulation, whereas tandem duplicates were overrepresented by environmental responses. Population resequencing of 80 individuals showed effective population size crashes at major points of climatic upheaval...
June 2017: Nature Genetics
https://www.readbyqxmd.com/read/28467070/studies-of-carbon-monoxide-release-from-ruthenium-ii-bipyridine-carbonyl-complexes-upon-uv-light-exposure
#18
Manja Kubeil, Robbin R Vernooij, Clemens Kubeil, Bayden R Wood, Bim Graham, Holger Stephan, Leone Spiccia
The UV-light-induced CO release characteristics of a series of ruthenium(II) carbonyl complexes of the form trans-Cl[RuLCl2(CO)2] (L = 4,4'-dimethyl-2,2'-bipyridine, 4'-methyl-2,2'-bipyridine-4-carboxylic acid, or 2,2'-bipyridine-4,4'-dicarboxylic acid) have been elucidated using a combination of UV-vis absorbance and Fourier transform infrared spectroscopies, multivariate curve resolution alternating least-squares analysis, and density functional theory calculations. In acetonitrile, photolysis appears to proceed via a serial three-step mechanism involving the sequential formation of [RuL(CO)(CH3CN)Cl2], [RuL(CH3CN)2Cl2], and [RuL(CH3CN)3Cl](+)...
May 3, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28441969/molecular-identification-of-plasmodium-spp-and-blood-meal-sources-of-anophelines-in-environmental-reserves-on-s%C3%A3-o-lu%C3%A3-s-island-state-of-maranh%C3%A3-o-brazil
#19
Mayra Araguaia Pereira Figueiredo, Silvia Maria Di Santi, Wilson Gómez Manrique, Luiz Ricardo Gonçalves, Marcos Rogério André, Rosangela Zacarias Machado
BACKGROUND: Considering the diversity of feeding habits that females of some species of anophelines present, it is important to understand which vertebrates are part of blood food sources and how important is the role of each in the ecoepidemiology of malaria. There are many vector species for Plasmodium spp. in the State of Maranhão, Brazil. In São Luís Island, Anopheles aquasalis is the main vector for human malaria; this species is abundant in areas with primates that are positive for Plasmodium...
April 26, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28439179/big-data-science-opportunities-and-challenges-to-address-minority-health-and-health-disparities-in-the-21st-century
#20
Xinzhi Zhang, Eliseo J Pérez-Stable, Philip E Bourne, Emmanuel Peprah, O Kenrik Duru, Nancy Breen, David Berrigan, Fred Wood, James S Jackson, David W S Wong, Joshua Denny
Addressing minority health and health disparities has been a missing piece of the puzzle in Big Data science. This article focuses on three priority opportunities that Big Data science may offer to the reduction of health and health care disparities. One opportunity is to incorporate standardized information on demographic and social determinants in electronic health records in order to target ways to improve quality of care for the most disadvantaged populations over time. A second opportunity is to enhance public health surveillance by linking geographical variables and social determinants of health for geographically defined populations to clinical data and health outcomes...
2017: Ethnicity & Disease
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