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https://www.readbyqxmd.com/read/28447860/remote-sensing-of-physiological-signs-using-a-machine-vision-system
#1
Ali Al-Naji, Kim Gibson, Javaan Chahl
The aim of this work is to remotely measure heart rate (HR) and respiratory rate (RR) using a video camera from long range (> 50 m). The proposed system is based on imperceptible signals produced from blood circulation, including skin colour variations and head motion. As these signals are not visible to the naked eye and to preserve the signal strength in the video, we used an improved video magnification technique to enhance these invisible signals and detect the physiological activity within the subject...
April 27, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28447606/a-tunable-high-pass-filter-for-simple-and-inexpensive-size-segregation-of-sub-10-nm-nanoparticles
#2
N C Surawski, S Bezantakos, K Barmpounis, M C Dallaston, A Schmidt-Ott, G Biskos
Recent advanced in the fields of nanotechnology and atmospheric sciences underline the increasing need for sizing sub-10-nm aerosol particles in a simple yet efficient way. In this article, we develop, experimentally test and model the performance of a High-Pass Electrical Mobility Filter (HP-EMF) that can be used for sizing nanoparticles suspended in gaseous media. Experimental measurements of the penetration of nanoparticles having diameters down to ca 1nm through the HP-EMF are compared with predictions by an analytic, a semi-empirical and a numerical model...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28447397/an-lc-ms-ms-method-for-determination-of-bioactive-components-of-licorice-and-semen-strychni-in-rat-plasma-application-to-a-pharmacokinetics-study
#3
Min Zhang, Yang Deng, Chao Wang, Hua-Lin Cai, Jing-Wen, Ping-Fei Fang, Bi-Kui Zhang, Huan-De Li, Miao Yan
Semen Strychni is known for its treatment of rheumatic arthritis with a low therapeutic index. Licorice contributes a lot in herb detoxification according to the traditional Chinese medicine theory. A simple, rapid and sensitive liquid chromatography-mass spectrometric method was developed and validated for simultaneous determination of main bioactive ingredients in licorice and Semen Strychni in rat plasma. Using moclobemide and cyproterone acetate as the internal standards, the analytes were pretreated via protein precipitation with methanol...
April 26, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28446932/telemedical-assessment-of-the-level-of-energy-expenditure-in-overweight-and-obese-individuals
#4
Tomasz Saran, Jakub Owoc, Alfred Owoc, Iwona Bojar
INTRODUCTION: Increasing the energy expenditure above the elementary level of metabolism by undertaking regular physical activity causes body mass reduction and its maintenance at a healthy level. AIM: To remote assessment of the level of physical activity in a group of overweight and obese individuals. MATERIAL AND METHODS: The research was conducted in the Department of Rehabilitation at the Institute of Rural Health, Lublin, Poland, and included a group of 514 volunteers of both genders (38 ±12 years)...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28446305/-establishment-of-mouse-model-of-h-2-haploidentical-hematopoietic-stem-cell-transplantation-from-double-donors
#5
Xiao-Na Wang, Yu-Meng Liang, Lei Deng, Lu Wang, Yi Wang, Ya-Jing Huang, Tie-Qiang Liu, Hong-Li Zuo, Kai-Xun Hu, Jian-Hui Qiao, Qi-Yun Sun, Mei Guo, Hui-Sheng Ai, Chang-Lin Yu
OBJECTIVE: To establish a new mouse model of H-2 haploidentical stem cell transplantation from double donors (DHSCT) and compare with conventional haploidentical hematopoietic stem cell transplantation (HSCT) so as to alleviate transplant-related complications. METHODS: The recipients CB6F1 of conventional HSCT group were pretreated by 8 Gy total body irradiation(TBI), and received 3×10(7) donor (male C57) spleen mononuclear cells (spMNC) mobilized by G-CSF within 2 hours after TBI...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28446141/a-mobile-application-of-breast-cancer-e-support-program-versus-routine-care-in-the-treatment-of-chinese-women-with-breast-cancer-undergoing-chemotherapy-study-protocol-for-a-randomized-controlled-trial
#6
Jiemin Zhu, Lyn Ebert, Xiangyu Liu, Sally Wai-Chi Chan
BACKGROUND: Women with breast cancer undergoing chemotherapy suffer from a number of symptoms and report receiving inadequate support from health care professionals. Innovative and easily accessible interventions are lacking. Breast Cancer e-Support is a mobile Application program (App) that provides patients with individually tailored information and a support group of peers and health care professionals. Breast Cancer e-Support aims to promote women's self-efficacy, social support and symptom management, thus improving their quality of life and psychological well-being...
April 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28445414/platform-architecture-for-decentralized-positioning-systems
#7
Zakaria Kasmi, Abdelmoumen Norrdine, Jörg Blankenbach
A platform architecture for positioning systems is essential for the realization of a flexible localization system, which interacts with other systems and supports various positioning technologies and algorithms. The decentralized processing of a position enables pushing the application-level knowledge into a mobile station and avoids the communication with a central unit such as a server or a base station. In addition, the calculation of the position on low-cost and resource-constrained devices presents a challenge due to the limited computing, storage capacity, as well as power supply...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445166/repurposing-compact-discs-as-master-molds-to-fabricate-high-performance-organic-nanowire-field-effect-transistors
#8
Kyunghun Kim, Jinhwi Cho, Heesauk Jhon, Jongwook Jeon, Myounggon Kang, Chan Eon Park, Jihoon Lee, Tae Kyu An
Organic field-effect transistors (OFETs) have been developed over the past few decades due to their potential applications in future electronics such as wearable and foldable electronics. As the electrical performance of OFETs has improved, patterning organic semiconducting crystals has become a key issue for their commercialization. However, conventional soft lithographic techniques have required the use of expensive processes to fabricate high-resolution master molds. In this study, we demonstrated a cost-effective method to prepare nanopatterned master molds for the fabrication of high-performance nanowire OFETs...
May 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28445050/involvement-of-wrky-transcription-factors-in-aba-induced-cold-tolerance-of-banana-fruit
#9
Dong-Lan Luo, Liang-Jie Ba, Wei Shan, Jian-Fei Kuang, Wang-Jin Lu, Jian-Ye Chen
Phytohormone abscisic acid (ABA) and plant-specific WRKY transcription factors (TFs) have been implicated to play important roles in various stress responses. The involvement of WRKY TFs in ABA-mediated cold tolerance of economical fruits, such as banana fruit, however remains largely unknown. Here, we reported that ABA application could induce expressions of ABA biosynthesis-related genes MaNCED1 and MaNCED2, increase endogenous ABA contents and thereby enhance cold tolerance in banana fruit. Four banana fruit WRKY TFs, designated as MaWRKY31, MaWRKY33, MaWRKY60, and MaWRKY71, were identified and characterized...
April 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28443681/preventing-the-forgotten-ureteral-stent-by-using-a-mobile-point-of-care-application
#10
Justin Bradley Ziemba, Wesley Ludwig, Leticia Ruiz, Eduardo Carvalhal, Brian Matlaga
INTRODUCTION: The forgotten ureteral stent (FUS) can lead to patient morbidity. To date, tracking ureteral stents is a cumbersome task, given their high frequency of insertion and variable indwelling times. To simplify this process, an application was developed to track patients with indwelling ureteral stents. We report our initial user-experience and clinical outcomes with this application. METHODS: Ureteral Stent Tracker™ (UST) is a secure, HIPPA compliant, cloud based point-of-care (POC) application...
April 26, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28443126/genome-wide-identification-characterization-and-expression-analysis-of-pht1-phosphate-transporters-in-wheat
#11
Wan Teng, Yan-Yan Zhao, Xue-Qiang Zhao, Xue He, Wen-Ying Ma, Yan Deng, Xin-Ping Chen, Yi-Ping Tong
The PHT1 family of phosphate (Pi) transporters mediates phosphorus (P) uptake and re-mobilization in plants. A genome-wide sequence analysis of PHT1 genes in wheat (Triticum aestivum) was conducted, and their expression locations and responses to P availability were further investigated. We cloned 21 TaPHT1 genes from the homologous alleles at TaPHT1.1 to 1.10 through screening a BAC library and amplifying genomic sequences. The TaPHT1 transporters were clustered into five branches in the phylogenetic tree of PHT1 proteins, and the TaPHT1 genes from a given branch shared high similarities in sequences, expression locations, and responses to P availability...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28441962/acceptability-of-a-mobile-health-intervention-to-enhance-hiv-care-coordination-for-patients-with-substance-use-disorders
#12
Ryan P Westergaard, Andrew Genz, Kristen Panico, Pamela J Surkan, Jeanne Keruly, Heidi E Hutton, Larry W Chang, Gregory D Kirk
BACKGROUND: Persons living with HIV and substance use disorders face barriers to sustained engagement in medical care, leading to suboptimal antiretroviral treatment outcomes. Innovative mobile technology tools such as customizable smartphone applications have the potential to enhance existing care coordination programs, but have not been rigorously studied. METHODS: We developed and implemented a two-component intervention consisting of peer health navigation supported by a smartphone application conducting ecologic momentary assessment (EMA) of barriers to care and medication adherence...
April 26, 2017: Addiction Science & Clinical Practice
https://www.readbyqxmd.com/read/28441624/various-soil-amendments-and-environmental-wastes-affect-the-im-mobilization-and-phytoavailability-of-potentially-toxic-elements-in-a-sewage-effluent-irrigated-sandy-soil
#13
Sabry M Shaheen, Mohamed S Shams, Mohamed R Khalifa, Mohamed A El-Dali, Jörg Rinklebe
Contamination of long-term sewage effluent irrigated soils by potentially toxic elements (PTEs) is a serious concern due to its high environmental and health risk. Our scientific hypothesis is that soil amendments can cause contradictory effects on the element mobilization and phytoavailability depending on the type of element and amendment. Therefore, we aimed to assess the impact of the application (1%) of several low cost amendments and environmental wastes on the (im)mobilization, availability, and uptake of Al, Cd, Cr, Cu, Fe, Mn, Ni, and Zn by sorghum (Sorghum bicolor) in a long term sewage effluent irrigated sandy soils collected from Egypt...
April 22, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28441546/isolation-of-new-polyacetylenes-from-the-roots-of-eurycoma-longifolia-via-high-speed-counter-current-chromatography
#14
Minglong Wang, Huijuan Zou, Qibin Chen, Jianguo Cao, Haji Akber Aisa, Guozheng Huang
Eurycoma longifolia is a tropical plant of diverse applications in folk medicine, which occurs in Southeast Asia. In this study, pre-purified fraction (0.86g) of the crude extracts from the roots of E. longifolia, was subjected to preparative high-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of hexane-ethyl acetate-methanol-water (HEMWat) at a volume ratio of 5:2:5:2 (v/v). Longifolione A (1, 19mg, purity 96.0%) and longifolione C (3, 317mg, purity 96.2%), together with longifolione B (2, purity 77...
April 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28441470/al2o3-and-sio2-atomic-layer-deposition-layers-on-zno-photoanodes-and-degradation-mechanisms
#15
Qian Cheng, Manpuneet Kaur Benipal, Qianlang Liu, Xingye Wang, Peter A A Crozier, Candace K Chan, Robert J Nemanich
Strategies for protecting unstable semiconductors include the utilization of surface layers comprised of thin films deposited using atomic layer deposition (ALD). The protective layer is expected to: (1) be stable against reaction with photogenerated holes, (2) prevent direct contact of the unstable semiconductor with the electrolyte, and (3) prevent the migration of ions through the semiconductor/electrolyte interface, while still allowing photogenerated carriers to transport to the interface and participate in the desired redox reactions...
April 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28441028/application-of-gc-ms-soft-ionization-for-isomeric-biological-compound-analysis
#16
Takeshi Furuhashi, Koji Okuda
Isomers are compounds with the same molecular formula. Many different types of isomers are ubiquitous and play important roles in living organisms. Despite their early discovery, the actual analysis of isomers has been tricky and has confounded researchers. Using mass spectrometry (MS) to distinguish or identify isomers is an emergent topic and challenge for analytical chemists. We review some techniques for analyzing isomers with emphasis on MS, e.g., the roles of ion reaction, hydrogen-deuterium exchange, ion mobility mass spectrometry, ion spectroscopy and energy change in producing isomer-specific fragments...
April 25, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/28440788/multi-layered-hierarchical-nanostructures-for-transparent-monolithic-dye-sensitized-solar-cell-architectures
#17
Luca Passoni, Francesco Fumagalli, Andrea Perego, Sebastiano Bellani, Piero Mazzolini, Fabio di Fonzo
Monolithic dye sensitized solar cell architectures hold great potential for building integrated photovoltaics applications. They indeed benefit from lower weight and manufacturing costs as they avoid the use of a transparent conductive oxide coated glass counter electrode. In this work a transparent monolithic dye-sensitized solar cell comprising hierarchical 1D nanostructures stack is fabricated by physical vapour deposition techniques. The proof of concept device comprises hyperbranched TiO<sub>2 </sub> nanostructures, sensitized by the prototypical N719, as photoanode, a hierarchical nanoporous Al<sub>2 </sub>O<sub>3 </sub> spacer and a microporous ITO top electrode...
April 25, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28440630/a-hydrolytically-stable-luminescent-cationic-metal-organic-framework-for-highly-sensitive-and-selective-sensing-of-chromate-anion-in-natural-water-systems
#18
Wei Liu, Yanlong Wang, Zhuanling Bai, Yuxiang Li, Yaxing Wang, Lanhua Chen, Lin Xu, Juan Diwu, Zhifang Chai, Shuao Wang
The effective detection of chromate anion in aqueous solution is highly desirable due to its high solubility, environmental mobility, carcinogenicity, and bioaccumulation effect. New strategy for precise detection of chromate anion in the presence of large excess of other anions such as Cl-, NO3-, HCO3- in drinking water and natural water systems remains a challenge. Herein, a hydrolytically stable cationic luminescent europium(III) based metal organic framework (MOF) 1 is successfully synthesized and investigated as a luminescent sensor which exhibits instant and selective luminescence quenching property toward CrO42- in aqueous solutions...
April 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28439085/a-high-power-and-fast-charging-li-ion-battery-with-outstanding-cycle-life
#19
M Agostini, S Brutti, M A Navarra, S Panero, P Reale, A Matic, B Scrosati
Electrochemical energy storage devices based on Li-ion cells currently power almost all electronic devices and power tools. The development of new Li-ion cell configurations by incorporating innovative functional components (electrode materials and electrolyte formulations) will allow to bring this technology beyond mobile electronics and to boost performance largely beyond the state-of-the-art. Here we demonstrate a new full Li-ion cell constituted by a high-potential cathode material, i.e. LiNi0.5Mn1.5O4, a safe nanostructured anode material, i...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438939/emergence-and-evolution-of-multidrug-resistant-klebsiella-pneumoniae-with-both-blakpc-and-blactx-m-integrated-in-chromosome
#20
Weihua Huang, Guiqing Wang, Robert Sebra, Jian Zhuge, Changhong Yin, Maria E Aguero-Rosenfeld, Audrey N Schuetz, Nevenka Dimitrova, John T Fallon
The extended-spectrum β-lactamase (ESBL)- and Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae represent serious and urgent threats to public health. In a retrospective study of multidrug-resistant K. pneumoniae, we identified three clinical isolates, CN1, CR14 and NY9, carrying both blaCTX-M and blaKPC genes. The complete genomes of these three K. pneumoniae isolates were de novo assembled by using both short- and long-read whole-genome sequencing. In CR14 and NY9, blaCTX-M and blaKPC were carried on two different plasmids...
April 24, 2017: Antimicrobial Agents and Chemotherapy
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