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https://www.readbyqxmd.com/read/28633334/knowledge-attitude-and-practice-of-gambian-health-practitioners-towards-antibiotic-prescribing-and-microbiological-testing-a-cross-sectional-survey
#1
Pa Saidou Chaw, Kristin Maria Schlinkmann, Heike Raupach-Rosin, André Karch, Mathias W Pletz, Johannes Huebner, Rafael Mikolajczyk
Background: Inappropriate antibiotic use is the leading cause of antibiotic resistance worldwide. At the same time, the practice of antibiotic prescribing in Africa is less well documented when compared to developed countries. The objective of the study was to assess the knowledge, attitude, and practice (KAP) of health practitioners towards antibiotic prescribing and microbiological testing in The Gambia. Methods: A KAP survey was conducted in The Gambia from March to May 2016...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28630034/fall-prevention-self-assessments-via-mobile-3d-visualization-technologies-community-dwelling-older-adults-perceptions-of-opportunities-and-challenges
#2
Julian Hamm, Arthur Money, Anita Atwal
BACKGROUND: In the field of occupational therapy, the assistive equipment provision process (AEPP) is a prominent preventive strategy used to promote independent living and to identify and alleviate fall risk factors via the provision of assistive equipment within the home environment. Current practice involves the use of paper-based forms that include 2D measurement guidance diagrams that aim to communicate the precise points and dimensions that must be measured in order to make AEPP assessments...
June 19, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28628202/paper-based-invasion-assays-for-quantifying-cellular-movement-in-three-dimensional-tissue-like-structures
#3
C Chad Lloyd, Matthew W Boyce, Matthew R Lockett
To elucidate the chemical and environmental conditions that promote invasion of cancer cells, an assay is needed in which the chemical landscape of a tumor-like environment can be experimentally manipulated and probed. The three-dimensional paper-based invasion assays described here simulate poorly vascularized tissue and allow the invasion of cancerous cells to be visualized and quantified. These cultures are easy to assemble and allow multiple invasion assays to be performed in parallel. By using different materials to control gradients formed across the culture, the chemotactic potential of small molecules can be evaluated in a more representative tissue microenvironment...
June 19, 2017: Current Protocols in Chemical Biology
https://www.readbyqxmd.com/read/28627178/turning-the-page-advancing-paper-based-microfluidics-for-broad-diagnostic-application
#4
Max M Gong, David Sinton
Infectious diseases are a major global health issue. Diagnosis is a critical first step in effectively managing their spread. Paper-based microfluidic diagnostics first emerged in 2007 as a low-cost alternative to conventional laboratory testing, with the goal of improving accessibility to medical diagnostics in developing countries. In this review, we examine the advances in paper-based microfluidic diagnostics for medical diagnosis in the context of global health from 2007 to 2016. The theory of fluid transport in paper is first presented...
June 19, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28626255/underlying-cause-of-death-recorded-during-2013-to-2015-at-a-tertiary-general-hospital-in-vientiane-capital-lao-pdr
#5
Bounfeng Phoummalaysith, Viengsakhone Louangpradith, Tavanh Manivon, Bounxou Keohavong, Eiko Yamamoto, Nobuyuki Hamajima
In Lao People's Democratic Republic (Lao PDR), the cause of death is not registered in death reports. As a result, the government cannot produce official reports that show mortality according to cause of death. This study aimed to report the underlying cause of death in a tertiary general hospital (Mittaphab Hospital) in Vientiane capital. Mittaphab hospital is a governmental teaching hospital with 300 beds for inpatient services specialized in orthopedics, neurology, and hemodialysis. Since a children hospital exists beside Mittaphab Hospital, severe pediatric cases are referred to the child hospital...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28624800/identifying-drug-pathway-association-pairs-based-on-l1l2-1-integrative-penalized-matrix-decomposition
#6
Dong-Qin Wang, Ying-Lian Gao, Jin-Xing Liu, Chun-Hou Zheng, Xiang-Zhen Kong
The traditional methods of drug discovery follow the "one drug-one target" approach, which ignores the cellular and physiological environment of the action mechanism of drugs. However, pathway-based drug discovery methods can overcome this limitation. This kind of method, such as the Integrative Penalized Matrix Decomposition (iPaD) method, identifies the drug-pathway associations by taking the lasso-type penalty on the regularization term. Moreover, instead of imposing the L1-norm regularization, the L2,1-Integrative Penalized Matrix Decomposition (L2,1-iPaD) method imposes the L2,1-norm penalty on the regularization term...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28623700/heat-release-at-the-wetting-front-during-capillary-filling-of-cellulosic-micro-substrates
#7
A Terzis, E Roumeli, K Weishaupt, S Brack, H Aslannejad, J Groß, S M Hassanizadeh, R Helmig, B Weigand
Spontaneous imbibition in cellulosic materials is an expanding field of research due to the direct applicability in paper-based microfluidics. Here, we show experimentally, using simultaneous thermal and optical imaging that the temperature at the wetting front during capillary filling of paper is temporarily increased, even if the imbibed fluid and the cellulosic substrate are initially at isothermal conditions. Several liquids and two types of filter paper, characterised by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis, were investigated demonstrating a significant temperature rise at the wetting front that cannot be neglected form the process...
June 8, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28623662/advances-in-the-analysis-of-water-and-wastewater-samples-using-various-sensing-protocols-and-microfluidic-devices-based-on-pad-and-%C3%AE-tas-systems
#8
Krzysztof Piaskowski, Renata Świderska-Dąbrowska, Aleksandra Kaleniecka, Paweł K Zarzycki
The main goal of this review is to summarize practical approaches concerning the application of microfluidic systems for the analysis of various biomarkers and pollutants, as well as microbes, in water and wastewater matrixes. This problem involves multidisciplinary expertise combining research knowledge from various areas, including wet chemistry, biochemistry, physical chemistry, molecular biology, genetics, signal processing, microelectronics material science, and separation science. It has been documented that fairly primitive but fast and inexpensive screening methods involving paper-based analytical devices (PADs) and micro total analytical systems (μTAS) can be considered as serious alternatives to their more advanced counterparts such as GC, HPLC, and capillary electrophoresis coupled to various sophisticated detectors (e...
June 16, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28623653/miniaturized-temperature-controlled-planar-chromatography-micro-tlc-as-a-versatile-technique-for-fast-screening-of-micropollutants-and-biomarkers-derived-from-surface-water-ecosystems-and-during-technological-processes-of-wastewater-treatment
#9
Magdalena M Ślączka-Wilk, Elżbieta Włodarczyk, Aleksandra Kaleniecka, Paweł K Zarzycki
There is increasing interest in the development of simple analytical systems enabling the fast screening of target components in complex samples. A number of newly invented protocols are based on quasi separation techniques involving microfluidic paper-based analytical devices and/or micro total analysis systems. Under such conditions, the quantification of target components can be performed mainly due to selective detection. The main goal of this paper is to demonstrate that miniaturized planar chromatography has the capability to work as an efficient separation and quantification tool for the analysis of multiple targets within complex environmental samples isolated and concentrated using an optimized SPE method...
June 16, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28622803/lab-on-paper-chip-integrated-with-si-gnrs-for-electroanalysis-of-diazepam
#10
Jagriti Narang, Chaitali Singhal, Ashish Mathur, Manika Khanuja, Ankur Varshney, Kartikey Garg, Tulika Dahiya, C S Pundir
We describe herein the fabrication of an electrochemical microfluidic paper based device (EμPAD) for the detection of diazepam, a sedative, anxiety-relieving and muscle-relaxing drug. To achieve it, silica coated gold nanorods (Si@GNRs) were synthesized and drop casted on an electrochemical microfluidic paper based device (EμPAD) for the detection of diazepam. The synthesized composites were characterized by recording its images in scanning electron microscope (SEM) and transmission electron microscope (TEM)...
August 8, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28622470/patterned-photonic-nitrocellulose-for-pseudo-paper-elisa
#11
Junjie Chi, Bingbing Gao, Mi Sun, Fengling Zhang, Enben Su, Hong Liu, Zhongze Gu
We report an enzyme-link immunosorbent assay (ELISA) based on patterned pseudo-paper that is made of photonic nitrocellulose for highly sensitive fluorescent bioanalysis. The pseudo-paper is fabricated using self-assembled monodisperse SiO2 nanoparticles that are patterned on a polypropylene substrate as template. The self-assembled nanoparticles have a close-packed hexagonal (opal) structure, so the resulting nitrocellulose has a complementary (inverse opal) photonic structure. Owing to the slow-photon effect of the photonic structure, fluorescent emission for ELISA is enhanced by up to 57-fold without increasing the assay time or complexity...
June 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28621775/3d-cellular-invasion-platforms-how-do-paper-based-cultures-stack-up
#12
Rachael M Kenney, C Chad Lloyd, Nathan A Whitman, Matthew R Lockett
Cellular invasion is the gateway to metastasis, which is the leading cause of cancer-related deaths. Invasion is driven by a number of chemical and mechanical stresses that arise in the tumor microenvironment. In vitro assays are needed for the systematic study of cancer progress. To be truly predictive, these assays must generate tissue-like environments that can be experimentally controlled and manipulated. While two-dimensional (2D) monolayer cultures are easily assembled and evaluated, they lack the extracellular components needed to assess invasion...
June 16, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28621694/ergonomics-as-a-tool-to-improve-the-sustainability-of-the-workforce
#13
Felipe Meyer, Gabriel Eweje, David Tappin
BACKGROUND: The sustainability of the workforce is threatened due to working conditions. One of the reasons for this is an imbalance between the working conditions and the capacity of the workers. OBJECTIVE: The objective of the paper, based on a literature review, is to explore the relationship between two main concepts, beginning with sustainability, and finished with ergonomics. Based on that relationship, determine if ergonomics could be helpful to improve the sustainability of the workforce...
June 14, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28620543/tablet-terminals-a-useful-tool-to-explain-in-vitro-fertilization-treatment
#14
Atsushi Yanaihara, Shirei Ohgi, Kenichirou Motomura, Takumi Yanaihara
BACKGROUND: Explanations that involve medical care treatment take time. This also applies to explanations of in vitro fertilization (IVF) in the field of infertility treatment. This is because the cause of infertility differs from couple to couple, and because the explanations must begin with the mechanism of pregnancy. Recently, explanations facilitated by tablet terminals have been used in the field of medicine. In the present study, the efficacy and problems of explanations facilitated by tablet terminals were evaluated and compared with the explanations of IVF facilitated by paper-based pamphlets...
2017: Fertility Research and Practice
https://www.readbyqxmd.com/read/28620167/high-throughput-rapid-prototyping-of-low-cost-paper-based-microfluidics
#15
Fariba Ghaderinezhad, Reza Amin, Mikail Temirel, Bekir Yenilmez, Adam Wentworth, Savas Tasoglu
Paper-based micro analytical devices offer significant advantages compared to the conventional microfluidic chips including cost-effectiveness, ease of fabrication, and ease of use while preserving critical features including strong capillary action and biological compatibility. In this work, we demonstrate an inexpensive, rapid method for high-throughput fabrication of paper-based microfluidics by patterning hydrophobic barriers using a desktop pen plotter integrated with a custom-made, low-cost paper feeder...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28618366/eu-3-functionalized-sc-mofs-turn-on-fluorescent-switch-for-ppb-level-biomarker-of-plastic-pollutant-polystyrene-in-serum-and-urine-and-on-site-detection-by-smartphone
#16
Xiao Lian, Tifang Miao, Xiaoyu Xu, Chi Zhang, Bing Yan
The harm of plastic pollutants for human and environment is being paid more and more attention. Polystyrene (PS) and styrene are toxic compounds used in large quantities in the production of fiberglass reinforced polyesters. In this work, a simple method was designed for independent detecting polystyrene and styrene biomarker (phenylglyoxylic acid, PGA) in serum and urine. We prepared Eu3+ functionalized Sc-based metal-organic frameworks as turn-on fluorescent switch for PGA. The distinct enhanced luminescence is observed from the Eu@MOFs with addition of PGA...
June 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28615526/identifying-prognostic-signature-in-ovarian-cancer-using-dirgenerank
#17
Jian-Yong Wang, Ling-Ling Chen, Xiong-Hui Zhou
Identifying the prognostic genes in cancer is essential not only for the treatment of cancer patients, but also for drug discovery. However, it's still a big challenge to select the prognostic genes that can distinguish the risk of cancer patients across various data sets because of tumor heterogeneity. In this situation, the selected genes whose expression levels are statistically related to prognostic risks may be passengers. In this paper, based on gene expression data and prognostic data of ovarian cancer patients, we used conditional mutual information to construct gene dependency network in which the nodes (genes) with more out-degrees have more chances to be the modulators of cancer prognosis...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28613296/battery-operated-preconcentration-assisted-lateral-flow-assay
#18
Cheonjung Kim, Yong Kyoung Yoo, Sung Il Han, Junwoo Lee, Dohwan Lee, Kyungjae Lee, Kyo Seon Hwang, Kyu Hyoung Lee, Seok Chung, Jeong Hoon Lee
Paper-based analytical devices (e.g. lateral flow assays) are highly advantageous as portable diagnostic systems owing to their low costs and ease of use. Because of their low sensitivity and detection limits for biomolecules, these devices have several limitations in applications for real-field diagnosis. Here, we demonstrate a paper-based preconcentration enhanced lateral flow assay using a commercial β-hCG-based test. Utilizing a simple 9 V battery operation with a low power consumption of approximately 81 μW, we acquire a 25-fold preconcentration factor, demonstrating a clear sensitivity enhancement in the colorimetric lateral flow assay; consequently, clear colors are observed in a rapid kit test line, which cannot be monitored without preconcentration...
June 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28609550/satisfaction-of-mountain-guides-with-high-sun-protection-as-a-tool-to-prevent-nmsc
#19
Linda Tizek, Julia Krause, Tilo Biedermann, Alexander Zink
BACKGROUND: NMSC is an occupational disease for outdoor workers in Germany since 2015. Sustainable prevention is demanded and sunscreen promoted as an effective tool. However, studies on the satisfaction of sunscreen users are rare. OBJECTIVE: To evaluate the satisfaction of mountain guides using a high SPF sunscreen product as an appropriate prevention tool for mountain guides. METHODS: Motivating mountain and ski guides in Germany to use very high protection sunscreen (SPF50+, Actinica Lotion) during a 4 to 8 hours workday followed by the completion of a self-filled paper-based questionnaire about their experience and satisfaction with the product...
June 13, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28606548/mechanical-properties-of-waste-paper-jute-fabric-reinforced-polyester-resin-matrix-hybrid-composites
#20
Sekhar Das
Hybrid composites were prepared with jute fabric and un-shredded newspaper in polyester resin matrix. The experiment was designed 1:2 weights ratio jute and unshredded newspaper to have 42 (w/w)% fibre content hybrid composites and two different sequences jute/paper/jute and paper/jute/paper of waste newspaper and jute fabric arrangement. Reinforcing material is characterized by chemically, X-ray diffraction methods, Fourier transform infrared spectroscopy and tensile testing. The tensile, flexural and interlaminar shear strength and fracture surface morphology of composites were evaluated and compared...
September 15, 2017: Carbohydrate Polymers
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