keyword
MENU ▼
Read by QxMD icon Read
search

wet

keyword
https://www.readbyqxmd.com/read/28449550/modeling-the-effects-of-nanopatterned-surfaces-on-wetting-states-of-droplets
#1
Ke Xiao, Yanping Zhao, Gang Ouyang, Xinlei Li
An analytic thermodynamic model has been established to quantitatively investigate the wetting states of droplets on nanopatterned surfaces. Based on the calculations for the free energies of droplets with the Wenzel state and the Cassie-Baxter state, it is found that the size and shape of nanostructured surfaces play crucial roles in wetting states. In detail, for nanohole-patterned surfaces, the deep and thin nanoholes lead to the Cassie-Baxter state, and contrarily, the shallow and thick nanoholes result in the Wenzel state...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28449375/the-genetic-dimension-of-pest-pressure-in-the-tropical-rainforest
#2
Marco Todesco, Quentin Cronk
Wet tropical forests are among the most diverse ecosystems on Earth and can host several hundreds of tree species per hectare. To maintain such diversity, the community must contain large numbers of relatively rare species rather than be dominated by a few very common trees, as is often the case in temperate forests. Explaining the mechanisms preventing dominance by common species has been a major task of tropical forest ecology. One of the most promising mechanisms is negative density dependence (NDD) of tree abundance driven by pests, including fungal diseases ('pest pressure')...
May 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28448714/octopus-inspired-assembly-of-nanosucker-arrays-for-dry-wet-adhesion
#3
Ying-Chu Chen, Hongta Yang
The octopus is able to adhere to slippery, fouled and irregular surfaces in the marine intertidal environment, because of its periodic infundibulum-shaped suckers on the arms. Here, we report a scalable self-assembly technique for fabricating adhesion materials that mimic octopus-sucker functionality. By utilizing spin-coated two-dimensional colloidal crystals as templates, non-close-packed nanosucker arrays are patterned on silicone substrates. The resulting nanosuckers can be deformed to exhibit great adhesive capacities on both micro-rough and flat surfaces in dry and wet environments...
April 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28447780/high-and-selective-carbon-dioxide-capture-in-nitrogen-containing-aerogels-via-synergistic-effects-of-electrostatic-in-plane-and-dispersive-%C3%AF-%C3%AF-stacking-interactions
#4
Li Yang, Guanjun Chang, Dapeng Wang
A new strategy for CO2 capture is reported based on the synergistic effect of electrostatic in-plane and dispersive π-π stacking interactions of amide and indole with CO2. Density functional theory (DFT) illustrated that the amide group can have an increased ability to capture CO2 molecules that was just desorbed from an adjacent indole unit. We used this strategy to fabricate a microporous aerogel that exhibited superior CO2 capture performance in both dry and wet conditions. The proposed synergistic effect is expected to be a new rationale for the design of CO2 capture materials...
April 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28447639/frequency-of-extreme-sahelian-storms-tripled-since-1982-in-satellite-observations
#5
Christopher M Taylor, Danijel Belušić, Françoise Guichard, Douglas J Parker, Théo Vischel, Olivier Bock, Phil P Harris, Serge Janicot, Cornelia Klein, Gérémy Panthou
The hydrological cycle is expected to intensify under global warming, with studies reporting more frequent extreme rain events in many regions of the world, and predicting increases in future flood frequency. Such early, predominantly mid-latitude observations are essential because of shortcomings within climate models in their depiction of convective rainfall. A globally important group of intense storms-mesoscale convective systems (MCSs)-poses a particular challenge, because they organize dynamically on spatial scales that cannot be resolved by conventional climate models...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28447188/chemometric-evaluation-of-elemental-imbalances-in-the-scalp-hair-of-valvular-heart-disease-patients-in-comparison-with-healthy-donors
#6
Asim Ilyas, Munir H Shah
The present study deals with the plausible association between the trace elemental imbalances and the emergence of valvular heart disease (VHD). A total of 14 elements including Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Pb, Sr and Zn in the scalp hair of VHD patients and healthy donors were analysed by flame atomic absorption spectrophometry employing wet acid digestion methodology. Median levels of Cu, Fe, Mg, Mn and Sr in the scalp hair of patients were significantly higher compared to those of the healthy donors, while the median concentrations of K and Na were found to be considerably higher in the scalp hair of the healthy donors...
April 26, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28446925/ethical-legal-and-clinical-aspects-of-live-surgery-in-urology-contemporary-issues-and-a-glimpse-of-the-future
#7
REVIEW
Alin Adrian Cumpanas, Ovidiu Catalin Ferician, Silviu Constantin Latcu, Catalin Pricop, Razvan Tiberiu Bardan
Beside dry and wet lab training, simulators, video tapes, fellowships and clinical visits, live surgery has gained popularity during the last years, being an attraction point at large scientific meetings and at postgraduate courses as well. This type of surgical training raises both ethical and legal issues. Thus, there are professional societies that have banned such meetings, mainly due to safety reasons for the patient. The current article aims to identify and to discuss ethical and legal issues related to the topic, advantages, disadvantages and weak points of this emerging challenge for modern medicine, trying to analyze the issues from all relevant points of view: those of the patient, the surgeon and the session attendant...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28446701/wind-and-rain-are-the-primary-climate-factors-driving-changing-phenology-of-an-aerial-insectivore
#8
Rachel D Irons, April Harding Scurr, Alexandra P Rose, Julie C Hagelin, Tricia Blake, Daniel F Doak
While the ecological effects of climate change have been widely observed, most efforts to document these impacts in terrestrial systems have concentrated on the impacts of temperature. We used tree swallow (Tachycineta bicolor) nest observations from two widely separated sites in central Alaska to examine the aspects of climate affecting breeding phenology at the northern extent of this species' range. We found that two measures of breeding phenology, annual lay and hatch dates, are more strongly predicted by windiness and precipitation than by temperature...
April 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28446462/sodium-storage-in-human-tissues-is-mediated-by-glycosaminoglycan-expression
#9
Michael Fischereder, Bernhard Michalke, Elisa Schmoeckel, Antje Habicht, Raphael Kunisch, Ivana Pavelic, Bermadett Szabados, Ulf Schönermarck, Peter Nelson, Manfred Stangl
The current paradigm regarding sodium handling in animals and humans postulates that total body sodium is regulated predominately via regulation of extracellular volume. Active sodium storage independent of volume retention is thought to be negligible. However, studies in animals, hypertensive patients and healthy humans suggest non-osmotic storage of sodium in skin. We hypothesized that tissue sodium concentrations ([Na]T) found in humans vary and reflect regulation due to variable glycosaminoglycan content due to variable expression of XYLT-1...
April 26, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28446201/anticonvulsant-effects-of-antiaris-toxicaria-aqueous-extract-investigation-using-animal-models-of-temporal-lobe-epilepsy
#10
Priscilla Kolibea Mante, Donatus Wewura Adongo, Eric Woode
BACKGROUND: Antiaris toxicaria has previously shown anticonvulsant activity in acute animal models of epilepsy. The aqueous extract (AAE) was further investigated for activity in kindling with pentylenetetrazole and administration of pilocarpine and kainic acid which mimic temporal lobe epilepsy in various animal species. RESULTS: ICR mice and Sprague-Dawley rats were pre-treated with AAE (200-800 mg kg(-1)) and convulsive episodes induced using pentylenetetrazole, pilocarpine and kainic acid...
April 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28445042/structural-transformation-of-mno2-during-the-oxidation-of-bisphenol-a
#11
Sarah Balgooyen, Peter J Alaimo, Christina K Remucal, Matthew Ginder-Vogel
Bisphenol A (BPA) is an endocrine-disrupting compound widely used in the plastic industry and found in natural waters at concentrations considered harmful for aquatic life. BPA is susceptible to oxidation by Mn(III/IV) oxides, which are commonly found in near-surface environments. Here, we quantify BPA oxidation rates and the formation of its predominant product, 4-hydroxycumyl alcohol (HCA), in tandem with transformation of a synthetic, Mn(III)-rich δ-MnO2. To investigate the effect of Mn oxide structural changes on BPA oxidation rate, twelve sequential additions of 80 μM BPA are performed at pH 7...
April 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28444566/improvement-of-rice-seedling-growth-and-nitrogen-use-efficiency-by-seed-inoculation-with-endophytic-denitrifiers
#12
Wenfeng Wang, Yanyan Zhai, Lixiang Cao, Hongming Tan, Renduo Zhang
The aim of the present study is to investigate the effect of seed inoculation with endophytic denitrifiers on rice seedling growth and nitrogen use efficiency under low- and high-urea conditions. Pseudomonas sp. B2, Streptomyces sp. A9, and Fusarium sp. F3 were isolated from rice plant tissues. Rice seeds inoculated with the denitrifiers were sown in soil fertilized with 100 and 300 mg/kg urea concentrations, respectively. The denitrifiers increased soil ammonia concentrations or kept high ammonia concentration for a longer time in soils...
April 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28444516/trap-nesting-hymenoptera-and-their-network-with-parasites-in-recovered-riparian-forests-brazil
#13
G J Araujo, R Fagundes, Y Antonini
Different aspects of human activities can cause environmental change that endanger species persistence, alter species distributions, and lead to changes in antagonistic and mutualistic interactions, whereas deforestation and flooding of riparian forest results in landscapes consisting of patchily distributed riparian forest fragments in a matrix of pastures, plantations, and urban areas. Therefore, we assessed the richness, abundance, and trophic interactions of trap-nesting Hymenoptera and their parasites at four patches of restored riparian forest and at one reference natural fragment, of different sizes and ages, located at the Volta Grande Reservoir, in Minas Gerais and São Paulo states to answer the following questions: (1) Does the richness and abundance of cavity-nesting bees and wasps differ in riparian forest fragments according to the seasonal periods? (2) Does the composition of cavity-nesting bees and wasps vary among restoration and reference sites and between climate seasons (wet and dry)? (3) How do the degrees of specialization of the parasites vary among the patches of forest? We recorded 12 species of wasps, eight of bees, and nine species of parasites...
April 25, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28444505/occupational-heat-stress-assessment-and-protective-strategies-in-the-context-of-climate-change
#14
Chuansi Gao, Kalev Kuklane, Per-Olof Östergren, Tord Kjellstrom
Global warming will unquestionably increase the impact of heat on individuals who work in already hot workplaces in hot climate areas. The increasing prevalence of this environmental health risk requires the improvement of assessment methods linked to meteorological data. Such new methods will help to reveal the size of the problem and design appropriate interventions at individual, workplace and societal level. The evaluation of occupational heat stress requires measurement of four thermal climate factors (air temperature, humidity, air velocity and heat radiation); available weather station data may serve this purpose...
April 25, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28444474/compost-and-sulfur-affect-the-mobilization-and-phyto-availability-of-cd-and-ni-to-sorghum-and-barnyard-grass-in-a-spiked-fluvial-soil
#15
Sabry M Shaheen, Ali A Balbaa, Alaa M Khatab, Jörg Rinklebe
Soil reclamation via additives can cause contradictory effects on the mobilization of toxic elements in soils under dry and wet conditions. Therefore, our aim was to investigate the impact of compost and sulfur in two rates (1.25 and 2.5%) on fractionation, mobilization, and phyto-availability of cadmium (Cd) and nickel (Ni) to sorghum (dry soil) and barnyard grass (wet soil) in a fluvial soil spiked with 25 mg Cd or 200 mg Ni/kg soil. Compost decreased the solubility and mobilization of Cd (especially in dry soil) and Ni (in both soils)...
April 25, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28444029/-risk-of-exposure-to-heatstroke-in-sugarcane-workers-in-s%C3%A3-o-paulo-state-brazil
#16
Rodrigo Cauduro Roscani, Daniel Pires Bitencourt, Paulo Alves Maia, Alvaro Cesar Ruas
Environmental heat is an aggravating factor for sugarcane workers, and manual cane cutting is one of the heavy work activities that favor the generation of metabolic heat. This can combine with other precarious working conditions to produce heatstroke, potentially leading to serious complications and even death. The study aimed to quantify the risk of overheating in sugarcane cutters in São Paulo, Brazil. Drawing on a specific methodology, the study used four years of data to estimate the Globe Thermometer Wet Bulb Index based on light, moderate, and heavy activities...
April 20, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28443916/a-kinetic-model-of-water-adsorption-clustering-and-dissociation-on-the-fe3s4-001-surface
#17
Alberto Roldan, Nora H de Leeuw
The interaction of water with catalyst surfaces is a common process which requires investigation. Here, we have employed density functional theory calculations to investigate the adsorption of up to ten water molecules on the {001} surface of greigite (Fe3S4), which owing to its redox properties, is of increasing interest as a catalyst, e.g. in electro-catalysis. We have systematically analyzed and characterized the modes of water adsorption on the surface, where we have considered both molecular and dissociative adsorption processes...
April 26, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28443905/predicting-oligomer-polymer-compatibility-and-the-impact-on-nanoscale-segregation-in-thin-films
#18
Elise F D Sabattié, Jos Tasche, Mark R Wilson, Maximilian W A Skoda, Arwel Hughes, Torsten Lindner, Richard L Thompson
Compatibility between oligomers and polymers was systematically assessed using differential scanning calorimetry (DSC) and was correlated with similarity in saturation and solubility parameter. These measurements enabled validation of detailed volume of mixing calculations using Statistical Association Fluid Theory (SAFT-γ Mie) and molecular dynamics (MD) simulations, which can be used to predict behaviour beyond the experimentally accessible conditions. These simulations confirmed that squalane is somewhat more compatible with poly(isoprene), "PI" than poly(butadiene), "PB", and further enabled prediction of the temperature dependence of compatibility...
April 26, 2017: Soft Matter
https://www.readbyqxmd.com/read/28442799/study-of-pruritus-vulvae-in-geriatric-age-group-in-tertiary-hospital
#19
Jasleen Kaur, Jyotika Kalsy
BACKGROUND: According to the World Health Organization criteria, geriatric population is people above 60 years of age. In this phase of life, a woman has already gone through menopause and its associated emotional, physical, and hormonal changes. These changes are due to gradual loss of estrogen that comes with menopause which results in dramatic changes in the appearance of vulva and vagina. With age, skin of vulva becomes thin, loses elasticity, and moisture so that the patient starts feeling burning and itchy sensation...
January 2017: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28442706/nitric-oxide-no-mediates-the-inhibition-of-form-deprivation-myopia-by-atropine-in-chicks
#20
Brittany J Carr, William K Stell
Myopia is the most common childhood refractive disorder. Atropine inhibits myopia progression, but its mechanism is unknown. Here, we show that myopia-prevention by atropine requires production of nitric oxide (NO). Form-deprivation myopia (FDM) was induced in week-old chicks by diffusers over the right eye (OD); the left eye (OS) remained ungoggled. On post-goggling days 1, 3, and 5, OD received intravitreally 20 µL of phosphate-buffered saline (vehicle), or vehicle plus: NO source: L-arginine (L-Arg, 60-6,000 nmol) or sodium nitroprusside (SNP, 10-1,000 nmol); atropine (240 nmol); NO inhibitors: L-NIO or L-NMMA (6 nmol); negative controls: D-Arg (10 µmol) or D-NMMA (6 nmol); or atropine plus L-NIO, L-NMMA, or D-NMMA; OS received vehicle...
December 5, 2016: Scientific Reports
keyword
keyword
61179
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"