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Anna N Chard, Matthew C Freeman
Evidence of the impact of water, sanitation, and hygiene (WASH) in schools (WinS) interventions on pupil absence and health is mixed. Few WinS evaluations rigorously report on output and outcome measures that allow for comparisons of effectiveness between interventions to be made, or for an understanding of why programs succeed. The Water, Sanitation, and Hygiene for Health and Education in Laotian Primary Schools (WASH HELPS) study was a randomized controlled trial designed to measure the impact of the United Nations Children's Fund (UNICEF) Laos WinS project on child health and education...
March 22, 2018: International Journal of Environmental Research and Public Health
Fernando González-Mohíno, Raúl Martín, Daniel Juárez Santos-García, Pedro Angel Fidel, Francisco de Asis Fernandez, Inmaculada Yustres, José María González Ravé
The objective of this study was to determine the effects of high-intensity warm-ups (WUs) on performance, physiological, neuromuscular and biomechanical parameters. Three randomized cross-over 105%vVO2 max time limit trials (TLimT) were performed by 11 well-trained runners following three different WU protocols. These included two experimental high-intensity variants and one control WU variant: (i) 9x20-sec level strides (105%vVO2 max; 1% gradient) with 60 s of recovery (level); (ii) 6x6-sec uphill strides (105%vVO2 max; 5% gradient), with the same recovery (uphill) and (iii) 7 min at 60%vVO2 max as control condition (control)...
March 21, 2018: International Journal of Sports Medicine
Jean-Paul Dossou, Jenny A Cresswell, Patrick Makoutodé, Vincent De Brouwere, Sophie Witter, Veronique Filippi, Lydie G Kanhonou, Sourou B Goufodji, Isabelle L Lange, Lionel Lawin, Fabien Affo, Bruno Marchal
Background: In 2009, the Benin government introduced a user fee exemption policy for caesarean sections. We analyse this policy with regard to how the existing ideas and institutions related to user fees influenced key steps of the policy cycle and draw lessons that could inform the policy dialogue for universal health coverage in the West African region. Methods: Following the policy stages model, we analyse the agenda setting, policy formulation and legitimation phase, and assess the implementation fidelity and policy results...
2018: BMJ Global Health
Carl G Meyer, James M Anderson, Daniel M Coffey, Melanie R Hutchinson, Mark A Royer, Kim N Holland
We compared tiger shark (Galeocerdo cuvier) spatial behaviour among 4 Hawaiian Islands to evaluate whether local patterns of movement could explain higher numbers of shark bites seen around Maui than other islands. Our sample consisted of 96 electronically-tagged (satellite and acoustic transmitters) tiger sharks, individually tracked for up to 6 years. Most individuals showed fidelity to a specific 'home' island, but also swam between islands and sometimes ranged far (up to 1,400 km) offshore. Movements were primarily oriented to insular shelf habitat (0-200 m depth) in coastal waters, and individual sharks utilized core-structured home ranges within this habitat...
March 21, 2018: Scientific Reports
Antonio Martínez-Amat, Agustín Aibar-Almazán, Raquel Fábrega-Cuadros, David Cruz-Díaz, José D Jiménez-García, Faustino R Pérez-López, Alexander Achalandabaso, Rafael Barranco-Zafra, Fidel Hita-Contreras
Sarcopenic obesity (SO) represents a major public health concern. Physical activity has been recommended to minimize functional decline in the elderly and it may also be relevant to SO management. The purpose of this systematic review of randomized controlled trials (RCTs) was to investigate the effects of different exercise modalities, alone or combined with nutritional supplementation, on body composition, muscle strength and physical function in healthy community-dwelling older adults with SO. A literature search was performed using the PubMed, SCOPUS, CINAHL and Cochrane Plus databases...
April 2018: Maturitas
Daniel J Geyer, Adam T Biggs
Virtual simulations offer nearly unlimited training potential for naval aviation due to the wide array of scenarios that can be simulated in a safe, reliable, and cost-effective environment. This versatility has created substantial interest in using existing and emerging virtual technology to enhance training scenarios. However, the virtual simulations themselves may hinder training initiatives by inducing simulator sickness among the trainees, which is a series of symptoms similar to motion sickness that can arise from simulator use...
April 1, 2018: Aerospace Medicine and Human Performance
Lingli Zhang, Li Zeng, Yumeng Guo
PURPOSES: Restricted by the scanning environment in some CT imaging modalities, the acquired projection data are usually incomplete, which may lead to a limited-angle reconstruction problem. Thus, image quality usually suffers from the slope artifacts. The objective of this study is to first investigate the distorted domains of the reconstructed images which encounter the slope artifacts and then present a new iterative reconstruction method to address the limited-angle X-ray CT reconstruction problem...
March 15, 2018: Journal of X-ray Science and Technology
Jiahui Lin, Hao Zhang, Jing Huang, Zhaoying Bian, Shanli Zhang, Yongbo Wang, Yuting Liao, Sui Li, Hua Zhang, Dong Zeng, Jianhua Ma
Dual energy computed tomography (DECT) can improve the capability of differentiating different materials compared with conventional CT. However, due to non-negligible radiation exposure to patients, dose reduction has recently become a critical concern in CT imaging field. In this work, to reduce noise at the same time maintain DECT images quality, we present an iterative reconstruction algorithm for low-dose DECT images where in the objective function of the algorithm consists of a data-fidelity term and a regularization term...
March 15, 2018: Journal of X-ray Science and Technology
Jie Gao, Jun Li, Wen-Chao Geng, Fang-Yuan Chen, Xingchen Duan, Zhe Zheng, Dan Ding, Dong-Sheng Guo
Activatable phototheranostics is highly appealing to meet the demand of precision medicine. However, although displaying the efficacy in construction of activatable photosensitizers (PSs), direct covalent decoration still shows some inevitable issues, such as complex molecular design, tedious synthesis, possible photoactivity changes and potential toxicity. Herein, we propose a novel concept of biomarker displacement activation (BDA) using host-guest strategy. To exemplify BDA, we engineered a PS-loaded nanocarrier by utilizing a macrocyclic amphiphile, where the fluorescence and photoactivity of PS were completely annihilated by the complexation of macrocyclic receptor (OFF state)...
March 21, 2018: Journal of the American Chemical Society
Sven Augustin, Sven Frohmann, Peter Jung, Heinz-Wilhelm Hübers
Terahertz (THz) radiation meaning electromagnetic radiation in the range from 0.1 (3) to 10 (30) has the unique advantage of easily penetrating many obstructions while being non-hazardous to organic tissue since it is non-ionizing. A shortcoming of this domain is the limited availability of high-sensitivity detector arrays respective THz cameras with >1k pixels. To overcome the imaging limitations of the THz domain, compressive imaging in combination with an optically controllable THz spatial light modulator is a promising approach especially when used in a single-pixel imaging modality...
March 20, 2018: Scientific Reports
Jennifer L Walton, Diane K Dunn, Nhi Y Haines, Ilana Heisler, Michael T Bigham, Teresa A Volsko
BACKGROUND: The American Academy of Pediatrics Section on Transport recommends the use of portable ventilators during the transport of patients with advanced airways. We sought to identify knowledge gaps and evaluate the effectiveness of a transport ventilator competency boot camp. METHODS: Electronic health records of children requiring ventilatory support during air and ground interfacility transport from January 1 through December 31, 2015, were reviewed to determine when manual ventilation was used in lieu of a portable ventilator, and simulations were constructed from commonly occurring scenarios...
March 20, 2018: Respiratory Care
Wei Zhang, Sheng Qian, Guowei Yang, Liang Zhu, Bo Zhou, Jianhua Wang, Rong Liu, Zhiping Yan, Xudong Qu
Hepatocellular carcinoma (HCC), the most common primary tumor of the liver, has a poor prognosis and shows rapid progression. MicroRNAs (miRNAs) play important roles in carcinogenesis and tumor progression. Regulators of G-protein signaling (RGS) are critical for defining G-protein-dependent signal fidelity. RGS17 plays an important role in the regulation of cancer cell proliferation, migration and invasion. Here, we showed that miR-199 was downregulated in a hepatocarcinoma cell line. Overexpression of miR-199 significantly suppressed HCC cell proliferation, migration, and invasion in vitro...
March 17, 2018: Gene
David L Joyce, Brian D Lahr, Simon Maltais, Sameh M Said, John M Stulak, Gregory A Nuttall, Lyle D Joyce
OBJECTIVES: Simulation in resident medical education has traditionally focused on isolated components of a surgical procedure. We hypothesized that incorporating an interdisciplinary team into a high-fidelity simulation laboratory would enhance the modeling of real-world challenges during cardiac surgery. METHODS: Simulation exercises were performed with staffing by surgeons, anesthesiologists, perfusionists, surgical assistants, and operating room technicians. Twelve accredited cardiothoracic surgical residents were divided into 3 teams...
February 13, 2018: Journal of Thoracic and Cardiovascular Surgery
Alex Molassiotis, Shelley Roberts, Hui Lin Cheng, Henry K F To, Po Shan Ko, Wang Lam, Yuk Fong Lam, Jessica Abbott, Deborah Kiefer, Jasotha Sanmugarajah, Andrea P Marshall
BACKGROUND: Malnutrition is frequent in patients with cancer, particularly those in advanced stages of the disease. The aim of the present study was to test the feasibility of a family-centred nutritional intervention, based on the Family Systems theory and past research. METHODS: This was a single-arm trial assessing feasibility (eligibility, recruitment and retention rates); acceptability by patients, family caregivers and health professionals; intervention fidelity, and energy/protein intake (in one site only)...
March 20, 2018: BMC Palliative Care
Lucy A Stephenson, Katherine Beck, Paula Busuulwa, Camilla Rosan, Carmine M Pariante, Susan Pawlby, Vaheshta Sethna
Childhood sexual abuse (CSA) is a worldwide problem with severe long-term consequences. A history of CSA can impact the childbearing experience of mothers and fathers; affecting their mental health, parenting skills and compromising infant development. Nonetheless, the perinatal period offers huge opportunity for intervention and hope. This literature review collates evidence for perinatal psychosocial interventions targeting both mothers and fathers who are survivors of CSA. Publications dating from 1970 to June 2016 were searched using Medline, Maternity and Infant Health, PsychINFO, PsychArticles, PubMed and the International Bibliography of the Social Sciences (IBSS)...
March 17, 2018: Child Abuse & Neglect
Ahasan Habib, Venkatachalem Sathish, Sanku Mallik, Bashir Khoda
Three-dimensional (3D) bio-printing is a revolutionary technology to reproduce a 3D functional living tissue scaffold in-vitro through controlled layer-by-layer deposition of biomaterials along with high precision positioning of cells. Due to its bio-compatibility, natural hydrogels are commonly considered as the scaffold material. However, the mechanical integrity of a hydrogel material, especially in 3D scaffold architecture, is an issue. In this research, a novel hybrid hydrogel, that is, sodium alginate with carboxymethyl cellulose (CMC) is developed and systematic quantitative characterization tests are conducted to validate its printability, shape fidelity and cell viability...
March 20, 2018: Materials
F Willeboordse, F G Schellevis, M C Meulendijk, J G Hugtenburg, P J M Elders
Background Implementation of clinical medication reviews in daily practice is scarcely evaluated. The Opti-Med intervention applied a structured approach with external expert teams (pharmacist and physician) to conduct medication reviews. The intervention was effective with respect to resolving drug related problems, but did not improve quality of life. Objective The objective of this process evaluation was to gain more insight into the implementation fidelity of the intervention. Setting Process evaluation alongside a cluster randomized trial in 22 general practices and 518 patients of 65 years and over...
March 20, 2018: International Journal of Clinical Pharmacy
Alisa Javadi, Dapeng Ding, Martin Hayhurst Appel, Sahand Mahmoodian, Matthias Christian Löbl, Immo Söllner, Rüdiger Schott, Camille Papon, Tommaso Pregnolato, Søren Stobbe, Leonardo Midolo, Tim Schröder, Andreas Dirk Wieck, Arne Ludwig, Richard John Warburton, Peter Lodahl
The spin of an electron is a promising memory state and qubit. Connecting spin states that are spatially far apart will enable quantum nodes and quantum networks based on the electron spin. Towards this goal, an integrated spin-photon interface would be a major leap forward as it combines the memory capability of a single spin with the efficient transfer of information by photons. Here, we demonstrate such an efficient and optically programmable interface between the spin of an electron in a quantum dot and photons in a nanophotonic waveguide...
March 19, 2018: Nature Nanotechnology
Andrey G Baranovskiy, Vincent N Duong, Nigar D Babayeva, Yinbo Zhang, Youri I Pavlov, Karen S Anderson, Tahir H Tahirov
DNA polymerase α (Polα) plays an important role in genome replication. In a complex with primase, Polα synthesizes chimeric RNA-DNA primers necessary for replication of both chromosomal DNA strands. During RNA primer extension with deoxyribonucleotides, Polα needs to use double-stranded helical substrates having different structures. Here, we provide a detailed structure-function analysis of human Polα's interaction with dNTPs and DNA templates primed with RNA, chimeric RNA-DNA, or DNA. We report the crystal structures of two ternary complexes of the Polα catalytic domain containing dCTP, a DNA template, and either a DNA or an RNA primer...
March 19, 2018: Journal of Biological Chemistry
Fidel Toldrá
No abstract text is available yet for this article.
2018: Advances in Food and Nutrition Research
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