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https://www.readbyqxmd.com/read/28830065/effect-of-biochar-and-fe-biochar-on-cd-and-as-mobility-and-transfer-in-soil-rice-system
#1
Daixia Yin, Xin Wang, Bo Peng, Changyin Tan, Lena Q Ma
In this study, the effects of biochar derived from rice-straw (biochar) and iron-impregnated biochar (Fe-biochar) on Cd and As mobility in rice rhizosphere and transfer from soil to rice were investigated with different application rates. 1-3% biochar reduced porewater Cd in rhizosphere but elevated soluble As, resulting in 49-68% and 26-49% reduction in the root and grain Cd, with a simultaneous increase in root As. Unlike biochar, 0.5% Fe-biochar decreased porewater As throughout rice growth, resulting in reduced root As, which, however, increased Cd uptake by root...
July 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28829691/how-does-the-cellular-phone-help-in-epidemiological-surveillance-a-review-of-the-scientific-literature
#2
Boukary Ouedraogo, Jean Gaudart, Jean-Charles Dufour
BACKGROUND: In the field of epidemiological surveillance, no systematic literature review appears to exist of implemented projects using cellular phone technology. METHOD: We performed a systematic literature review using the Pubmed and Scopus databases to retrieve articles published up to December 2015. We analyzed information reported in these publications according to the mobile health (mHealth) evidence reporting and assessment (mERA) checklist, and complemented this work with specific items related to epidemiology, in order to clarify the types of results reported and summarized in this context...
August 22, 2017: Informatics for Health & Social Care
https://www.readbyqxmd.com/read/28829071/anisotropic-carrier-mobility-in-buckled-two-dimensional-gan
#3
Lijia Tong, Junjie He, Min Yang, Zheng Chen, Jing Zhang, Yanli Lu, Ziyuan Zhao
Developing nanoelectronic engineering requires two-dimensional (2d) materials with both usable carrier mobility and proper large band-gap. In this study, we present a detailed theoretical investigation of the intrinsic carrier mobilities of buckled 2d GaN. This buckled 2d GaN is accessed by hydrofluorination (FGaNH) and hydrogenation (HGaNH). We predict that the anisotropic carrier mobilities of buckled 2d GaN can exceed those of 2d MoS2 and can be altered by an alterable surface chemical bond (convert from a Ga-F-Ga bond of FGaNH to a Ga-H bond of HGaNH)...
August 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28828377/evaluating-clinicians-user-experience-and-acceptability-of-learntb-a-smartphone-application-for-tuberculosis-in-india
#4
Tripti Pande, Kavitha Saravu, Zelalem Temesgen, Al Seyoum, Shipra Rai, Raghavendra Rao, Deekshith Mahadev, Madhukar Pai, Marie-Pierre Gagnon
BACKGROUND: Tuberculosis (TB) is the leading infectious killer, and India accounts for 2.8 of the 10.4 million TB cases that occur each year, making it the highest TB burden country worldwide. Poor quality of TB care is a major driver of the epidemic in India. India's large private, unregulated sector manages over 50% of the TB patients, with studies showing suboptimal diagnosis and treatment in the private sector. Better education of doctors using mobile applications (apps) is a possible solution...
2017: MHealth
https://www.readbyqxmd.com/read/28827595/excellent-low-voltage-operating-flexible-ferroelectric-organic-transistor-nonvolatile-memory-with-a-sandwiching-ultrathin-ferroelectric-film
#5
Ting Xu, Lanyi Xiang, Meili Xu, Wenfa Xie, Wei Wang
The high operating voltage is a primary issue preventing the commercial application of the ferroelectric organic field-effect transistor (Fe-OFET) nonvolatile memory (NVM). In this work, we propose a novel route to resolve this issue by employing two ultrathin AlOX interfacial layers sandwiching an ultrathin ferroelectric polymer film with a low coercive field, in the fabricated flexible Fe-OFET NVM. The operation voltage of Fe-OFET NVMs decreases with the downscaling thickness of the ferroelectric film. By inserting two ultrathin AlOX interfacial layers at both sides of the ultrathin ferroelectric film, not only the gate leakage is prominently depressed but also the mobility is greatly improved...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827586/experimental-study-of-hysteresis-behavior-of-foam-generation-in-porous-media
#6
S Kahrobaei, S Vincent-Bonnieu, R Farajzadeh
Foam can be used for gas mobility control in different subsurface applications. The success of foam-injection process depends on foam-generation and propagation rate inside the porous medium. In some cases, foam properties depend on the history of the flow or concentration of the surfactant, i.e., the hysteresis effect. Foam may show hysteresis behavior by exhibiting multiple states at the same injection conditions, where coarse-textured foam is converted into strong foam with fine texture at a critical injection velocity or pressure gradient...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827160/multi-site-trial-using-short-mobile-messages-sms-to-improve-infant-weight-in-low-income-minorities-development-implementation-lessons-learned-and-future-applications
#7
Jinan Banna, Maribel Campos Rivera, Cheryl Gibby, Rafael Enrique Graulau Medina, Marytere Meléndez, Alexandra Reyes, Jae Eun Lee, Cristina Palacios
No abstract text is available yet for this article.
August 18, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28827151/endothelial-and-cardiac-progenitor-cells-for-cardiovascular-repair-a-controversial-paradigm-in-cell-therapy
#8
REVIEW
Vanessa Bianconi, Amirhossein Sahebkar, Petri Kovanen, Francesco Bagaglia, Biagio Ricciuti, Paolo Calabrò, Giuseppe Patti, Matteo Pirro
Stem cells have the potential to differentiate into cardiovascular cell lineages and to stimulate tissue regeneration in a paracrine/autocrine manner; thus, they have been extensively studied as candidate cell sources for cardiovascular regeneration. Several preclinical and clinical studies addressing the therapeutic potential of endothelial progenitor cells (EPCs) and cardiac progenitor cells (CPCs) in cardiovascular diseases have been performed. For instance, autologous EPC transplantation and EPC mobilization through pharmacological agents contributed to vascular repair and neovascularization in different animal models of limb ischemia and myocardial infarction...
August 18, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28826213/liquid-infused-smooth-surface-for-improved-condensation-heat-transfer
#9
Hirotaka Tsuchiya, Mizuki Tenjimbayashi, Takeo Moriya, Ryohei Yoshikawa, Kaichi Sasaki, Ryo Togasawa, Taku Yamazaki, Kengo Manabe, Seimei Shiratori
Control of vapor condensation properties is a promising approach to manage a crucial part of energy infrastructure conditions. Heat transfer by vapor condensation on superhydrophobic coatings has garnered attention because dropwise condensation on superhydrophobic surfaces with rough structures leads to favorable heat transfer performance. However, pinned condensed water droplets within the rough structure and a high thermodynamic energy barrier for nucleation of superhydrophobic surfaces limit their heat transfer increase...
August 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28823022/long-term-bisphosphonate-therapy-in-osteogenesis-imperfecta
#10
REVIEW
A Biggin, C F Munns
PURPOSE OF REVIEW: Osteogenesis imperfecta (OI) is a genetic bone disorder resulting in bone fragility. It has a heterogeneous phenotype which typically includes reduced bone mass, multiple fractures, deformity, and chronic disability. Bisphosphonate treatment remains the first-line medical management, but there is still debate on aspects of its effectiveness. This review summarizes current knowledge about long-term bisphosphonate use in OI with recommendations on clinical application...
August 19, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28822158/-fast-identification-of-constituents-of-lagotis-brevituba-by-using-uplc-q-tof-ms-ms-method
#11
Jing Xie, Li Zhang, Jin-Xiang Zeng, Min Li, Juan Wang, Xiong-Xiong Xie, Guo-Yue Zhong, Guang-Ming Luo, Jin-Bin Yuan, Jian Liang
The chemical constituents of Lagotis brevituba were rapidly determined and analyzed by using ultra performance liquid chromatography tandem quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS/MS) method, providing material basis for the clinical application of L. brevituba. The separation was performed on UPLC YMC-Triart C₁₈ (2.1 mm×100 mm, 1.9 μm) column, with acetonitrile-water containing 0.2% formic acid as mobile phase for gradient elution. The flow rate was 0.4 mL•min-1 gradient elution and column temperature was 40 ℃, the injection volume was 2 μL...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28821773/a-patterned-single-layer-graphene-resistance-temperature-sensor
#12
Benyamin Davaji, Hak Dong Cho, Mohamadali Malakoutian, Jong-Kwon Lee, Gennady Panin, Tae Won Kang, Chung Hoon Lee
Micro-fabricated single-layer graphenes (SLGs) on a silicon dioxide (SiO2)/Si substrate, a silicon nitride (SiN) membrane, and a suspended architecture are presented for their use as temperature sensors. These graphene temperature sensors act as resistance temperature detectors, showing a quadratic dependence of resistance on the temperature in a range between 283 K and 303 K. The observed resistance change of the graphene temperature sensors are explained by the temperature dependent electron mobility relationship (~T(-4)) and electron-phonon scattering...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821474/validation-relaxation-a-quality-assurance-strategy-for-electronic-data-collection
#13
Avi Kenny, Nicholas Gordon, Thomas Griffiths, John D Kraemer, Mark J Siedner
BACKGROUND: The use of mobile devices for data collection in developing world settings is becoming increasingly common and may offer advantages in data collection quality and efficiency relative to paper-based methods. However, mobile data collection systems can hamper many standard quality assurance techniques due to the lack of a hardcopy backup of data. Consequently, mobile health data collection platforms have the potential to generate datasets that appear valid, but are susceptible to unidentified database design flaws, areas of miscomprehension by enumerators, and data recording errors...
August 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28820651/starting-and-stopping-kinetics-of-a-rear-mounted-power-assist-for-manual-wheelchairs
#14
Stephanie Wong, Ben Mortenson, Bonita Sawatzky
A rear mounted, powered, drive wheel has been developed to assist with mobility for manual wheelchairs in indoor and outdoor modes. To start the wheel, users must initiate handrim propulsion with sufficient force to trigger the motor. To stop the indoor mode, users must apply a braking force through the handrims exceeding the device's deceleration threshold. The objectives of this study were to compare 1) the minimum force required to start a wheelchair with and without the wheel, and 2) the distances and forces needed to stop a wheelchair at different treadmill speeds (3...
August 18, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28820526/silica-nanoparticle-monolayers-on-a-macroion-modified-surface-formation-mechanism-and-stability
#15
M Morga, Z Adamczyk, D Kosior
Even though silica nanoparticles and their monolayers find a broad field of applications, only a few studies providing a quantitative description of silica nanoparticle deposition at solid/liquid interfaces have been reported in the literature. Given the deficit of reliable experimental data, the goal of this work is to acquire thorough physicochemical characteristics of amorphous silica nanoparticle deposition. Silica nanoparticle monolayers of controlled coverage were formed on macroion (PAH)-modified mica...
August 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28820461/thermal-response-analysis-of-phospholipid-bilayers-using-ellipsometric-techniques
#16
Carmen M González-Henríquez, Vanessa A Villegas-Opazo, Dallits H Sagredo-Oyarce, Mauricio A Sarabia-Vallejos, Claudio A Terraza
Biomimetic planar artificial membranes have been widely studied due to their multiple applications in several research fields. Their humectation and thermal response are crucial for reaching stability; these characteristics are related to the molecular organization inside the bilayer, which is affected by the aliphatic chain length, saturations, and molecule polarity, among others. Bilayer stability becomes a fundamental factor when technological devices are developed-like biosensors-based on those systems...
August 18, 2017: Biosensors
https://www.readbyqxmd.com/read/28820451/dynamic-fuzzy-logic-based-path-planning-for-mobility-assisted-localization-in-wireless-sensor-networks
#17
Abdullah Alomari, William Phillips, Nauman Aslam, Frank Comeau
Mobile anchor path planning techniques have provided as an alternative option for node localization in wireless sensor networks (WSNs). In such context, path planning is a movement pattern where a mobile anchor node's movement is designed in order to achieve a maximum localization ratio possible with a minimum error rate. Typically, the mobility path planning is designed in advance, which is applicable when the mobile anchor has sufficient sources of energy and time. However, when the mobility movement is restricted or limited, a dynamic path planning design is needed...
August 18, 2017: Sensors
https://www.readbyqxmd.com/read/28820303/rapid-ventricular-pacing-for-clip-reconstruction-of-complex-unruptured-intracranial-aneurysms-results-of-an-interdisciplinary-prospective-trial
#18
Juergen Konczalla, Johannes Platz, Stephan Fichtlscherer, Haitham Mutlak, Ulrich Strouhal, Volker Seifert
OBJECTIVE To date, treatment of complex unruptured intracranial aneurysms (UIAs) remains challenging. Therefore, advanced techniques are required to achieve an optimal result in treating these patients safely. In this study, the safety and efficacy of rapid ventricular pacing (RVP) to facilitate microsurgical clip reconstruction was investigated prospectively in a joined neurosurgery, anesthesiology, and cardiology study. METHODS Patients with complex UIAs were prospectively enrolled. Both the safety and efficacy of RVP were evaluated by recording cardiovascular events and outcomes of patients as well as the amount of aneurysm occlusion after the surgical clip reconstruction procedure...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28820262/single-layer-tl2o-a-metal-shrouded-2d-semiconductor-with-high-electronic-mobility
#19
Yandong Ma, Agnieszka Kuc, Thomas Heine
First metal-shrouded two-dimensional semicon-ductor, single-layer Tl2O, is discussed from first-principles. It is thermally and dynamically stable, has a low cleavage energy call-ing for exfoliation from layered Tl2O bulk, and a very small inter-face mismatch compared to (001) Tl metal. Single-layer Tl2O ex-hibits a direct band gap of 1.56 eV and a very high charge carrier mobility of 4.3×103 cm2 V-1 s-1. The metal-shrouded 2D semicon-ductor promises interesting applications in 2D electronics. An in-triguing layer-thickness dependent direct-to-indirect bandgap tran-sition is observed, and contrary to early literature, the bulk is also a semiconductor...
August 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28820196/on-the-mobility-of-carriers-at-semi-coherent-oxide-heterointerfaces
#20
Pratik P Dholabhai, Enrique Martínez, Nicholas T Brown, Blas Pedro Uberuaga
In the quest to develop new materials with enhanced ionic conductivity for battery and fuel cell applications, nano-structured oxides have attracted attention. Experimental reports indicate that oxide heterointerfaces can lead to enhanced ionic conductivity, but these same reports cannot elucidate the origin of this enhancement, often vaguely referring to pipe diffusion at misfit dislocations as a potential explanation. However, this highlights the need to understand the role of misfit dislocation structure at semi-coherent oxide heterointerfaces in modifying carrier mobilities...
August 18, 2017: Physical Chemistry Chemical Physics: PCCP
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