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https://www.readbyqxmd.com/read/29352086/temporal-and-spatial-distribution-of-the-acetic-acid-bacteria-communities-throughout-the-wooden-casks-used-for-the-fermentation-and-maturation-of-lambic-beer-underlines-their-functional-role
#1
J De Roos, M Verce, M Aerts, P Vandamme, L De Vuyst
Few data have been published on the occurrence and functional role of acetic acid bacteria (AAB) in lambic beer production processes, mainly due to their difficult recovery and possibly unknown role. Therefore, a novel aseptic sampling method, spanning both the spatial and temporal distribution of AAB and their substrates and metabolites, was combined with a highly selective medium and matrix-assisted laser desorption time-of-flight mass spectrometry (MALDI TOF MS) as a high-throughput dereplication method followed by comparative gene sequencing for their isolation and identification, respectively...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29349045/advantages-disadvantages-indications-contraindications-and-surgical-technique-of-laryngeal-airway-mask
#2
REVIEW
Anubhav Jannu, Ashim Shekar, Ramdas Balakrishna, H Sudarshan, G C Veena, S Bhuvaneshwari
The beauty of the laryngeal mask is that it forms an air tight seal enclosing the larynx rather than plugging the pharynx, and avoid airway obstruction in the oropharynx. The goal of its development was to create an intermediate form of airway management face mask and endotracheal tube. Indication for its use includes any procedure that would normally involve the use of a face mask. The laryngeal mask airway was designed as a new concept in airway management and has been gaining a firm position in anesthetic practice...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29346189/the-impact-of-implementing-tobacco-control-policies-the-2017-tobacco-control-policy-scorecard
#3
David T Levy, Jamie Tam, Charlene Kuo, Geoffrey T Fong, Frank Chaloupka
The Tobacco Control Scorecard, published in 2004, presented estimates of the effectiveness of different policies on smoking rates. Since its publication, new evidence has emerged. We update the Scorecard to include recent studies of demand-reducing tobacco policies for high-income countries. We include cigarette taxes, smoke-free air laws, media campaigns, comprehensive tobacco control programs, marketing bans, health warnings, and cessation treatment policies. To update the 2004 Scorecard, a narrative review was conducted on reviews and studies published after 2000, with additional focus on 3 policies in which previous evidence was limited: tobacco control programs, graphic health warnings, and marketing bans...
January 17, 2018: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/29341680/ultimate-stable-underwater-superhydrophobic-state
#4
Yaolei Xiang, Shenglin Huang, Pengyu Lv, Yahui Xue, Qiang Su, Huiling Duan
Underwater metastability hinders the durable application of superhydrophobic surfaces. In this work, through thermodynamic analysis, we theoretically demonstrate the existence of an ultimate stable state on underwater superhydrophobic surfaces. Such a state is achieved by the synergy of mechanical balance and chemical diffusion equilibrium across the entrapped liquid-air interfaces. By using confocal microscopy, we in situ examine the ultimate stable states on structured hydrophobic surfaces patterned with cylindrical micropores in different pressure and flow conditions...
September 29, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29340508/-space-time-and-power-in-hospital-health-care-contributions-based-on-the-ethnography-of-an-obstetric-center
#5
María Guadalupe García, María Laura Recoder, Susana Margulies
This paper presents the results of an ethnographic study of an obstetric center within a hospital of Greater Buenos Aires and an analysis of the spatio-temporal dimension of hospital care. The fieldwork, carried out between 2007 and 2011, followed the everyday dynamics of the hospital and included observation in the obstetrics unit (waiting areas, the obstetric center where births and emergencies receive care, and the ambulatory care, ultrasound, and hospitalization rooms, among others) as well as spaces such as the appointments and statistics offices, the office of social services, the central hall, the pharmacy, and hallway waiting areas...
July 2017: Salud Colectiva
https://www.readbyqxmd.com/read/29337924/effect-of-humid-aging-on-the-oxygen-adsorption-in-sno%C3%A2-gas-sensors
#6
Koichi Suematsu, Nan Ma, Ken Watanabe, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe
To investigate the effect of aging at 580 °C in wet air (humid aging) on the oxygen adsorption on the surface of SnO₂ particles, the electric properties and the sensor response to hydrogen in dry and humid atmospheres for SnO₂ resistive-type gas sensors were evaluated. The electric resistance in dry and wet atmospheres at 350 °C was strongly increased by humid aging. From the results of oxygen partial pressure dependence of the electric resistance, the oxygen adsorption equilibrium constants (K₁; for O- adsorption, K₂; for O2- adsorption) were estimated on the basis of the theoretical model of oxygen adsorption...
January 16, 2018: Sensors
https://www.readbyqxmd.com/read/29330936/give-me-a-sample-of-air-and-i-will-tell-which-species-are-found-from-your-region-molecular-identification-of-fungi-from-airborne-spore-samples
#7
Nerea Abrego, Veera Norros, Panu Halme, Panu Somervuo, Heini Ali-Kovero, Otso Ovaskainen
Fungi are a megadiverse group of organisms, they play major roles in ecosystem functioning, and are important for human health, food production, and nature conservation. Our knowledge on fungal diversity and fungal ecology is however still very limited, in part because surveying and identifying fungi is time demanding and requires expert knowledge. We present a method that allows anyone to generate a list of fungal species likely to occur in a region of interest, with minimal effort and without requiring taxonomical expertise...
January 13, 2018: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29326506/the-bond-strength-of-nanohybrid-and-nanoceramic-composites-to-feldspathic-porcelain
#8
Hatice Özdemir, Nuran Dinçkal Yanikoglu
Background: Porcelain fracture is the most important problem in fixed prosthetic restorations. The replacement of fractured restoraions isn't often prefer by patients and dentists. Intraoral repair of fractured porcelain is a big alternative for patient and dentist. For this reason, dentists try to improve different surface treatments to increase the bond strength between porcelain and repair materials such as composite resins. Aims: The aim of this study was to evaluate the shear bond strength (SBS) of nano-hybrid (Nh...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29323479/solution-processed-n-type-graphene-doping-for-cathode-in-inverted-polymer-light-emitting-diodes
#9
Sung-Joo Kwon, Tae-Hee Han, Young-Hoon Kim, Towfiq Ahmed, Hong-Kyu Seo, Hobeom Kim, Dong Jin Kim, Wentao Xu, Byung Hee Hong, Jian-Xin Zhu, Tae-Woo Lee
n-Type doping with (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)phenyl) dimethylamine (N-DMBI) reduces a work function (WF) of graphene by ~0.45 eV without significant reduction of optical transmittance. Solution process of N-DMBI on graphene provides effective n-type doping effect and air-stability at the same time. Although neutral N-DMBI act as an electron receptor leaving the graphene p-doped, radical N-DMBI acts as an electron donator leaving the graphene n-doped, which is demonstrated by density functional theory...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29322823/use-of-space-and-behavior-of-weaned-piglets-kept-in-enriched-two-level-housing-system
#10
Michaela Fels, Franziska Lüthje, Alice Faux-Nightingale, Nicole Kemper
In this study, the possibility of introducing an elevated platform to a piglet pen was explored as a way of increasing available space and creating functional areas. On the platform, nine different manipulable materials were offered. In four batches, 40 weaned piglets were kept for five weeks in the two-level pen. Video recordings were taken two days per week. In the afternoon, more piglets were on the platform than in the morning or at night (7.2 ± 0.1 vs. 4.9 ± 0.1 vs. 0.6 ± 0.1 piglets/5 minutes; p < ...
January 11, 2018: Journal of Applied Animal Welfare Science: JAAWS
https://www.readbyqxmd.com/read/29320159/bioinspired-nanostructured-surfaces-for-on-demand-bubble-transportation
#11
Xin Tang, Hairui Xiong, Tiantian Kong, Ye Tian, Wen-Di Li, Liqiu Wang
The maneuver of small bubbles in a programmed way will advance numerous processes, including gas evolution reaction and aeration. Unlike in-air droplets, rapidly rising bubbles in liquid medium can hardly be steered through interaction with solid substrates, causing difficulties in maneuvering bubbles. We pattern and lubricate nanoporous substrates with regions of contrasting wettability that is similar to the back of Namib desert beetles and subsequently immerse the lubricated surface underwater to spontaneously form spatially patterned Nepenthes-inspired slippery surfaces after the dewetting of lubricants...
January 10, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29318882/charge-transfer-induced-p-type-channel-in-mos2-flake-field-effect-transistor
#12
Sung-Wook Min, Minho Yoon, Sung Jin Yang, Kyeong Rok Ko, Seongil Im
Two-dimensional (2D) transition-metal dichalcogenide semiconductor (TMD), MoS2 has received extensive attention for decades due to their outstanding electrical and mechanical properties for next generation devices. One weakness of MoS2, however, is that it only shows n-type conduction revealing its limitations for homogeneous PN diodes and complementary inverters. Here, we introduce a charge-transfer method to modify the conduction property of MoS2 from n- to p-type. We initially deposited n-type InGaZnO (IGZO) film on top of MoS2 flake, so that electron charges might be transferred from MoS2 to IGZO during air ambient annealing...
January 10, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29314299/quasi-monolayer-black-phosphorus-with-high-mobility-and-air-stability
#13
Sherman Jun Rong Tan, Ibrahim Abdelwahab, Leiqiang Chu, Sock Mui Poh, Yanpeng Liu, Jiong Lu, Wei Chen, Kian Ping Loh
Black phosphorus (BP) exhibits thickness-dependent band gap and high electronic mobility. The chemical intercalation of BP with alkali metal has attracted attention recently due to the generation of universal superconductivity regardless of the type of alkali metals. However, both ultrathin BP, as well as alkali metal-intercalated BP, are highly unstable and corrode rapidly under ambient conditions. This study demonstrates that alkali metal hydride intercalation decouples monolayer to few layers BP from the bulk BP, allowing an optical gap of ≈1...
January 3, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29313196/tripartite-equilibrium-strategy-for-a-carbon-tax-setting-problem-in-air-passenger-transport
#14
Jiuping Xu, Rui Qiu, Zhimiao Tao, Heping Xie
Carbon emissions in air passenger transport have become increasing serious with the rapidly development of aviation industry. Combined with a tripartite equilibrium strategy, this paper proposes a multi-level multi-objective model for an air passenger transport carbon tax setting problem (CTSP) among an international organization, an airline and passengers with the fuzzy uncertainty. The proposed model is simplified to an equivalent crisp model by a weighted sum procedure and a Karush-Kuhn-Tucker (KKT) transformation method...
January 8, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29309529/current-issues-in-the-impacts-of-transport-on-health
#15
M C I van Schalkwyk, J S Mindell
Introduction or background: Transport affects health in many ways. Benefits include access to education, employment, goods, services and leisure, and opportunities for incorporating physical activity into daily living. There are major inequalities: benefits generally accrue to wealthier people and harms to the more deprived, nationally and globally. Sources of data: Health on the Move 2; Journal of Transport and Health. Areas of agreement: Benefits of travel for access and physical activity...
January 4, 2018: British Medical Bulletin
https://www.readbyqxmd.com/read/29309360/partitioning-an-artificial-anterior-chamber-with-a-latex-diaphragm-to-simulate-anterior-and-posterior-segment-pressure-dynamics-the-dmek-practice-stage-where-surgeons-can-rehearse-the-dmek-dance
#16
Christopher S Sáles, Michael D Straiko, Ana Alzaga Fernandez, Kelly Odell, Philip K Dye, Khoa D Tran
PURPOSE: To present a novel apparatus for simulating the anterior and posterior segment pressure dynamics involved in executing Descemet membrane endothelial keratoplasty (DMEK) surgery when using a chamber-shallowing technique. METHODS: An artificial anterior chamber (AAC), 18-mm trephine, latex glove, two 3-mL syringes, and one donor cornea comprising an intact corneoscleral cap from which a DMEK tissue was peeled and punched are required for the model. After making the corneal incisions with the corneoscleral cap mounted on the AAC in the usual fashion, the corneoscleral cap is remounted onto the dried AAC over an 18-mm latex diaphragm...
February 2018: Cornea
https://www.readbyqxmd.com/read/29305229/towards-improved-accuracy-in-modeling-aeration-efficiency-through-understanding-bubble-size-distribution-dynamics
#17
Andreia Amaral, Giacomo Bellandi, Usman Rehman, Ramiro Neves, Youri Amerlinck, Ingmar Nopens
Aeration is the largest energy consumer in most water and resource recovery facilities, which is why oxygen transfer optimization is fundamental to improve energy efficiency. Although oxygen transfer is strongly influenced by the bubble size distribution dynamics, most aeration efficiency models currently do not include this influence explicitly. In few cases, they assume a single average bubble size. The motivation of this work is to investigate this knowledge gap, i.e. a more accurate calculation of the impact of bubble size distribution dynamics on oxygen transfer...
November 3, 2017: Water Research
https://www.readbyqxmd.com/read/29297373/research-with-pregnant-women-a-call-to-action
#18
Margaret Olivia Little, Marisha N Wickremsinhe
Despite a global need for the use of medication during pregnancy, the medical research community lacks robust evidence for safety and efficacy of treatments and preventives often taken by pregnant women. Given the biological differences between pregnant women and the rest of the population, the need to gather data on the ways in which medications behave in the pregnant body is critical to the health of pregnant women and their offspring. Three ethical reasons are central to this need: 1. Pregnant women deserve access to effective treatment, 2...
December 14, 2017: Reproductive Health
https://www.readbyqxmd.com/read/29296115/comparison-of-the-dentin-bond-strength-of-two-self-etch-adhesives-after-prolonged-air-drying-and-additional-light-curing
#19
Pouran Samimi, Masoud Ghodrati, Farinaz Shirban, Maryam Khoroushi
Objectives: It has been reported that the water, solvents, or the primer incorporated into adhesive resins decrease the polymerization, compromise the mechanical properties, reduce the bond strength, and lead to a poor bonding performance of self-etch adhesives. This article evaluated the effect of air-drying and light-curing duration of self-etch adhesives on the micro-shear bond strength between composite resin and dentin. Materials and Methods: A total of 120 extracted sound human third molars were randomly divided into twelve groups (n=10)...
September 2017: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29289283/the-presence-and-partitioning-behavior-of-flame-retardants-in-waste-leachate-and-air-particles-from-norwegian-waste-handling-facilities
#20
Nicolas A O Morin, Patrik L Andersson, Sarah E Hale, Hans Peter H Arp
Flame retardants in commercial products eventually make their way into the waste stream. Herein the presence of flame retardants in Norwegian landfills, incineration facilities and recycling sorting/defragmenting facilities is investigated. These facilities handled waste electrical and electronic equipment (WEEE), vehicles, digestate, glass, combustibles, bottom ash and fly ash. The flame retardants considered included polybrominated diphenyl ethers (∑BDE-10) as well as dechlorane plus, polybrominated biphenyls, hexabromobenzene, pentabromotoluene and pentabromoethylbenzene (collectively referred to as ∑FR-7)...
December 2017: Journal of Environmental Sciences (China)
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