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https://www.readbyqxmd.com/read/29340508/-space-time-and-power-in-hospital-health-care-contributions-based-on-the-ethnography-of-an-obstetric-center
#1
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/29339160/overstretching-partially-alkyne-functionalized-dsdna-using-near-infrared-optical-tweezers
#2
Allan Raudsepp, Lisa M Kent, Simon B Hall, Martin A K Williams
The force-extension behaviour of synthesized double-stranded DNAs (dsDNAs) designed to have 2.1% or 6.6% of the thyamine bases alkyne functionalized was studied using near infrared (NIR) optical tweezers. Measurements were carried out on substrates with and without flurophores covalently attached to the alkyne moiety over an extended force range (F=0-70 pN) and results were compared to those obtained from an unmodified control. In accordance with earlier work [1] (measured over a force range F=0-5 pN), the force-extension of the dsDNA containing 2...
January 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29334732/fine-art-of-thermoelectricity
#3
Viktor Brus, Marc A Gluba, Joerg Rappich, Felix Lang, Zakhar Kovalyuk, Pavlo Maryanchuk, Norbert H Nickel
A detailed study of hitherto unknown electrical and thermoelectric properties of graphite pencil traces on paper was carried out by measuring the Hall and Seebeck effects. We show that the combination of pencil-drawn graphite and brush-painted PEDOT:PSS films on regular office paper results in extremely simple, low-cost and environmentally friendly thermoelectric power generators with promising output characteristics at low-temperature gradients. The working characteristics can be improved even further by incorporating n-type InSe flakes...
January 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29322769/composition-microstructure-and-electrical-performances-of-sputtered-sno-thin-film-for-p-type-oxide-semiconductor
#4
Seung Jun Lee, Yoon Jin Jang, Han Joon Kim, Eun Suk Hwang, Seok Min Jeon, Jun Shik Kim, Taehwan Moon, Kyung-Tae Jang, Young-Chang Joo, Deok-Yong Cho, Cheol Seong Hwang
P-Type SnO thin films were deposited on Si substrate by a co-sputtering process using ce-ramic SnO and metal Sn targets at room temperature without adding oxygen. By varying the DC sputtering power applied to the Sn target while maintaining the RF power to the SnO target constant, the Sn:O ratio could vary from 56:44 to 74:26 at the as-deposited state. After the thermal annealing at 180 oC for 25 min under air atmosphere using a microwave annealing system, the films were crystallized into the tetragonal SnO while the Sn:O ratio became from 44:56 to 57:43...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29322493/the-struggle-for-via-bologna-street-market-crisis-racial-denial-and-speaking-back-to-power-in-naples-italy
#5
Antonia Dawes
This paper is based on ethnographic research conducted with migrant and Italian street vendors in Naples, southern Italy, in 2012. It tells the story of Via Bologna market which was nearly closed down by the City Hall at the time. Naples is a city where issues of poverty and unemployment pre-date and have been exacerbated by manifold narratives of crisis now unfolding across Europe regarding the economy, political legitimacy, security and migration. Street markets have always been an important and visible economic survival strategy for both Neapolitans and migrants there...
January 10, 2018: British Journal of Sociology
https://www.readbyqxmd.com/read/29311701/equal-fitness-paradigm-explained-by-a-trade-off-between-generation-time-and-energy-production-rate
#6
James H Brown, Charles A S Hall, Richard M Sibly
Most plant, animal and microbial species of widely varying body size and lifestyle are nearly equally fit as evidenced by their coexistence and persistence through millions of years. All organisms compete for a limited supply of organic chemical energy, derived mostly from photosynthesis, to invest in the two components of fitness: survival and production. All organisms are mortal because molecular and cellular damage accumulates over the lifetime; life persists only because parents produce offspring. We call this the equal fitness paradigm...
January 8, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29306714/led-power-efficiency-of-biomass-fatty-acid-and-carotenoid-production-in-nannochloropsis-microalgae
#7
Ruijuan Ma, Skye R Thomas-Hall, Elvis T Chua, Eladl Eltanahy, Michael E Netzel, Gabriele Netzel, Yinghua Lu, Peer M Schenk
The microalga Nannochloropsis produces high-value omega-3-rich fatty acids and carotenoids. In this study the effects of light intensity and wavelength on biomass, fatty acid, and carotenoid production with respect to light output efficiency were investigated. Similar biomass and fatty acid yields were obtained at high light intensity (150 μmol m-2 s-1) LEDs on day 7 and low light intensity (50 μmol m-2 s-1) LEDs on day 11 during cultivation, but the power efficiencies of biomass and fatty acid (specifically eicosapentaenoic acid) production were higher for low light intensity...
December 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29259177/scale-invariant-large-nonlocality-in-polycrystalline-graphene
#8
Mário Ribeiro, Stephen R Power, Stephan Roche, Luis E Hueso, Fèlix Casanova
The observation of large nonlocal resistances near the Dirac point in graphene has been related to a variety of intrinsic Hall effects, where the spin or valley degrees of freedom are controlled by symmetry breaking mechanisms. Engineering strong spin or valley Hall signals on scalable graphene devices could stimulate further practical developments of spin- and valleytronics. Here we report on scale-invariant nonlocal transport in large-scale chemical vapor deposition graphene under an applied external magnetic field...
December 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/29258575/association-between-ultrasound-detected-synovitis-and-knee-pain-a-population-based-case-control-study-with-both-cross-sectional-and-follow-up-data
#9
Aliya Sarmanova, Michelle Hall, Gwen S Fernandes, Archan Bhattacharya, Ana M Valdes, David A Walsh, Michael Doherty, Weiya Zhang
BACKGROUND: An important role for synovial pathology in the initiation and progression of knee osteoarthritis has been emphasised recently. This study aimed to examine whether ultrasonography-detected synovial changes associate with knee pain (KP) in a community population. METHODS: A case-control study was conducted to compare people with early KP (n = 298), established KP (n = 100) or no KP (n = 94) at baseline. Multinomial logistic regression was used to estimate the odds ratio (OR) and 95% confidence interval (CI) between groups adjusted for radiographic osteoarthritis (ROA) severity and other confounding factors...
December 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29218991/multimodal-kelvin-probe-force-microscopy-investigations-of-a-photovoltaic-wse2-mos2-type-ii-interface
#10
Yann Almadori, Nedjma Bendiab, Benjamin Grevin
Atomically thin transition metal dichalcogenides (TMDC) have become a new platform for the development of next-generation opto-electronic and light harvesting devices. Here, we report a Kelvin probe force microscopy (KPFM) investigation carried out on a type-II photovoltaic heterojunction based on WSe2 monolayer flakes and a bilayer MoS2 film stacked in vertical configuration on a Si/SiO2 substrate. Band offset characterized by a significant interfacial dipole is pointed out at the WSe2/MoS2 vertical junction...
December 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29217573/quantized-chiral-edge-conduction-on-domain-walls-of-a-magnetic-topological-insulator
#11
K Yasuda, M Mogi, R Yoshimi, A Tsukazaki, K S Takahashi, M Kawasaki, F Kagawa, Y Tokura
Electronic ordering in magnetic and dielectric materials forms domains with different signs of order parameters. The control of configuration and motion of the domain walls (DWs) enables nonvolatile responses against minute external fields. Here, we realize chiral edge states (CESs) on the magnetic DWs of a magnetic topological insulator. We design and fabricate the magnetic domains in the quantum anomalous Hall state with the tip of a magnetic force microscope and prove the existence of the chiral one-dimensional edge conduction along the prescribed DWs through transport measurements...
December 8, 2017: Science
https://www.readbyqxmd.com/read/29173511/evaluating-dementia-home-care-practices-the-reification-of-care-norms
#12
Ryan DeForge, Catherine Ward-Griffin, Oona St-Amant, Jodi Hall, Carol McWilliam, Dorothy Forbes, Marita Kloseck, Abe Oudshoorn
This critical ethnographic study examined how power relations shape the nature and enactment of caregivers' evaluation of home-based dementia care practices. As the home care sector continues to evolve and prepare itself as a key element in caring for people living with dementia and their families, this study grounds our understanding of how dementia home care practices are enacted and evaluated, particularly at the interface of formal and familial caregiving. The critical finding from our data is that not all evaluations of care practices were considered equally meaningful or relevant, and, moreover, their significance depended on whether the evaluation was made by someone in a position of power...
December 2017: Journal of Aging Studies
https://www.readbyqxmd.com/read/29169393/a-systematic-review-and-meta-analysis-of-online-versus-alternative-methods-for-training-licensed-health-care-professionals-to-deliver-clinical-interventions
#13
Helen Richmond, Bethan Copsey, Amanda M Hall, David Davies, Sarah E Lamb
BACKGROUND: Online training is growing in popularity and yet its effectiveness for training licensed health professionals (HCPs) in clinical interventions is not clear. We aimed to systematically review the literature on the effectiveness of online versus alternative training methods in clinical interventions for licensed Health Care Professionals (HCPs) on outcomes of knowledge acquisition, practical skills, clinical behaviour, self-efficacy and satisfaction. METHODS: Seven databases were searched for randomised controlled trials (RCTs) from January 2000 to June 2015...
November 23, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/29162682/caenorhabditis-elegans-dbl-1-bmp-regulates-lipid-accumulation-via-interaction-with-insulin-signaling
#14
James F Clark, Michael Meade, Gehan Ranepura, David H Hall, Cathy Savage-Dunn
Metabolic homeostasis is coordinately controlled by diverse inputs. Understanding these regulatory networks is vital to combating metabolic disorders. The nematode Caenorhabditis elegans has emerged as a powerful, genetically tractable model system for the discovery of lipid regulatory mechanisms. Here we introduce DBL-1, the C. elegans homolog of bone morphogenetic protein 2/4 (BMP2/4), as a significant regulator of lipid homeostasis. We used neutral lipid staining and a lipid droplet marker to demonstrate that both increases and decreases in DBL-1/BMP signaling result in reduced lipid stores and lipid droplet count...
November 21, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29162050/transcriptome-profiling-of-aging-drosophila-photoreceptors-reveals-gene-expression-trends-that-correlate-with-visual-senescence
#15
Hana Hall, Patrick Medina, Daphne A Cooper, Spencer E Escobedo, Jeremiah Rounds, Kaelan J Brennan, Christopher Vincent, Pedro Miura, Rebecca Doerge, Vikki M Weake
BACKGROUND: Aging is associated with functional decline of neurons and increased incidence of both neurodegenerative and ocular disease. Photoreceptor neurons in Drosophila melanogaster provide a powerful model for studying the molecular changes involved in functional senescence of neurons since decreased visual behavior precedes retinal degeneration. Here, we sought to identify gene expression changes and the genomic features of differentially regulated genes in photoreceptors that contribute to visual senescence...
November 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29148808/detection-of-short-waved-spin-waves-in-individual-microscopic-spin-wave-waveguides-using-the-inverse-spin-hall-effect
#16
Thomas Brächer, Mathieu Fabre, Thomas Meyer, Tobias Fischer, Stéphane Auffret, Olivier Boulle, Ursula Ebels, Philipp Pirro, Gilles Gaudin
The miniaturization of CMOS devices becomes increasingly difficult due to fundamental limitations and the increase of leakage currents. Large research efforts are devoted to find alternative concepts that allow for a larger data-density and lower power consumption than conventional semiconductor approaches. Spin waves have been identified as a potential technology that can complement and outperform CMOS in complex logic applications, profiting from the fact that these waves enable wave computing on the nano-scale...
November 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/29141404/photoinduced-inverse-spin-hall-effect-of-surface-states-in-the-topological-insulator-bi2se3
#17
Jinling Yu, Xiaolin Zeng, Liguo Zhang, Ke He, Shuying Cheng, Yunfeng Lai, Wei Huang, Yonghai Chen, Chunming Yin, Qikun Xue
The three-dimensional (3D) topological insulator (TI) Bi2Se3 exhibits topologically protected, linearly dispersing Dirac surface states (SSs). To access the intriguing properties of these SSs, it is important to distinguish them from the coexisting two-dimensional electron gas (2DEG) on the surface. Here, we use circularly polarized light to induce the inverse spin Hall effect in a Bi2Se3 thin film at different temperatures (i.e., from 77 to 300 K). It is demonstrated that the photoinduced inverse spin Hall effect (PISHE) of the top SSs and the 2DEG can be separated based on their opposite signs...
November 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/29136797/unparalleled-sample-treatment-throughput-for-proteomics-workflows-relying-on-ultrasonic-energy
#18
Susana Jorge, J E Araújo, F M Pimentel-Santos, Jaime C Branco, Hugo M Santos, Carlos Lodeiro, J L Capelo
We report on the new microplate horn ultrasonic device as a powerful tool to speed proteomics workflows with unparalleled throughput. 96 complex proteomes were digested at the same time in 4min. Variables such as ultrasonication time, ultrasonication amplitude, and protein to enzyme ratio were optimized. The "classic" method relying on overnight protein digestion (12h) and the sonoreactor-based method were also employed for comparative purposes. We found the protein digestion efficiency homogeneously distributed in the entire microplate horn surface using the following conditions: 4min sonication time and 25% amplitude...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29133957/hidden-magnetic-states-emergent-under-electric-field-in-a-room-temperature-composite-magnetoelectric-multiferroic
#19
J D Clarkson, I Fina, Z Q Liu, Y Lee, J Kim, C Frontera, K Cordero, S Wisotzki, F Sanchez, J Sort, S L Hsu, C Ko, L Aballe, M Foerster, J Wu, H M Christen, J T Heron, D G Schlom, S Salahuddin, N Kioussis, J Fontcuberta, X Marti, R Ramesh
The ability to control a magnetic phase with an electric field is of great current interest for a variety of low power electronics in which the magnetic state is used either for information storage or logic operations. Over the past several years, there has been a considerable amount of research on pathways to control the direction of magnetization with an electric field. More recently, an alternative pathway involving the change of the magnetic state (ferromagnet to antiferromagnet) has been proposed. In this paper, we demonstrate electric field control of the Anomalous Hall Transport in a metamagnetic FeRh thin film, accompanying an antiferromagnet (AFM) to ferromagnet (FM) phase transition...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126163/identification-of-novel-cancer-biomarkers-of-prognostic-value-using-specific-gene-regulatory-networks-grn-a-novel-role-of-rad51ap1-for-ovarian-and-lung-cancers
#20
Dimple Chudasama, Valeria Bo, Marcia Hall, Vladimir Anikin, Jeyarooban Jeyaneethi, Jane Gregory, George Pados, Allan Tucker, Amanda Harvey, Ryan Pink, Emmanouil Karteris
To date, microarray analyses have led to the discovery of numerous individual "molecular signatures" associated with specific cancers. However, there are serious limitations for the adoption of these multi-gene signatures in the clinical environment for diagnostic or prognostic testing as studies with more power need to be carried out. This may involve larger richer cohorts and more advanced analyses.In this study, we conduct analyses -based on GRN- to reveal distinct and common biomarkers across cancer types...
November 8, 2017: Carcinogenesis
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