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https://www.readbyqxmd.com/read/28101302/robot-assisted-laparoscopic-gastrectomy-for-gastric-cancer
#1
REVIEW
Stefano Caruso, Franco Franceschini, Alberto Patriti, Franco Roviello, Mario Annecchiarico, Graziano Ceccarelli, Andrea Coratti
Phase III evidence in the shape of a series of randomized controlled trials and meta-analyses has shown that laparoscopic gastrectomy is safe and gives better short-term results with respect to the traditional open technique for early-stage gastric cancer. In fact, in the East laparoscopic gastrectomy has become routine for early-stage gastric cancer. In contrast, the treatment of advanced gastric cancer through a minimally invasive way is still a debated issue, mostly due to worries about its oncological efficacy and the difficulty of carrying out an extended lymphadenectomy and intestinal reconstruction after total gastrectomy laparoscopically...
January 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28095514/influence-of-stepped-osteotomy-on-primary-stability-of-implants-inserted-in-low-density-bone-sites-an-in-vitro-study
#2
Marco Degidi, Giuseppe Daprile, Adriano Piattelli
PURPOSE: The aims of this study were to evaluate the ability of a stepped osteotomy to improve dental implant primary stability in low-density bone sites and to investigate possible correlations between primary stability parameters. MATERIALS AND METHODS: The study was performed on fresh humid bovine bone classified as type III. The test group consisted of 30 Astra Tech EV implants inserted following the protocol provided by the manufacturer. The first control group consisted of 30 Astra Tech EV implants inserted in sites without the underpreparation of the apical portion...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28095321/cellulose-to-depolymerize%C3%A2-or-not-to
#3
REVIEW
Sergiu Coseri
Oxidation of the primary OH groups in cellulose is a pivotal reaction both at lab and industrial scale, leading to the value-added products, i.e. oxidized cellulose which have tremendous applications in medicine, pharmacy and hi-tech industry. Moreover, the introduction of carboxyl moieties creates prerequisites for further cellulose functionalization through covalent attachment or electrostatic interactions, being an essential achievement designed to boost the area of cellulose-based nanomaterials fabrication...
January 14, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28089512/paleozoic-nymphal-wing-pads-support-dual-model-of-insect-wing-origins
#4
Jakub Prokop, Martina Pecharová, André Nel, Thomas Hörnschemeyer, Ewa Krzemińska, Wiesław Krzemiński, Michael S Engel
The appearance of wings in insects, early in their evolution [1], has been one of the more critical innovations contributing to their extraordinary diversity. Despite the conspicuousness and importance of wings, the origin of these structures has been difficult to resolve and represented one of the "abominable mysteries" in evolutionary biology [2]. More than a century of debate has boiled the matter down to two competing alternatives-one of wings representing an extension of the thoracic notum, the other stating that they are appendicular derivations from the lateral body wall...
January 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28089387/treatment-of-men-with-high-risk-prostate-cancer-based-on-race-insurance-coverage-and-access-to-advanced-technology
#5
Robert Steven Gerhard, Dattatraya Patil, Yuan Liu, Kenneth Ogan, Mehrdad Alemozaffar, Ashesh B Jani, Omer N Kucuk, Viraj A Master, Theresa W Gillespie, Christopher P Filson
PURPOSE: We characterized factors related to nondefinitive management (NDM) of patients with high-risk prostate cancer and assessed impact from race, insurance status, and facility-level volume of technologically advanced prostate cancer treatments (i.e., intensity-modulated radiation therapy, robotic-assisted laparoscopic radical prostatectomy) on this outcome. METHODS: We identified men with high-risk localized prostate cancer (based on D׳Amico criteria) in the National Cancer Database (2010-2012)...
January 12, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28077347/translating-e-mental-health-into-practice-what-are-the-barriers-and-enablers-to-e-mental-health-implementation-by-aboriginal-and-torres-strait-islander-health-professionals
#6
James Bennett-Levy, Judy Singer, Simon DuBois, Kelly Hyde
BACKGROUND: With increasing evidence for the effectiveness of e-mental health interventions for enhancing mental health and well-being, a growing challenge is how to translate promising research findings into service delivery contexts. A 2012 e-mental health initiative by the Australian Federal Government (eMHPrac) has sought to address the issue through several strategies, one of which has been to train different health professional workforces in e-mental health (e-MH). OBJECTIVE: The aim of the study was to report on the barriers and enablers of e-MH uptake in a cohort of predominantly Aboriginal and Torres Strait Islander health professionals (21 Indigenous, 5 non-Indigenous) who occupied mainly support or case management roles within their organizations...
January 11, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28068445/presbyopic-correction-using-monocular-bi-aspheric-ablation-profile-presbymax-in-hyperopic-eyes-1-year-outcomes
#7
Tommy C Y Chan, Peter S K Kwok, Vishal Jhanji, Victor C P Woo, Alex L K Ng
PURPOSE: To present the 1-year outcomes of combining monocular bi-aspheric ablation profile and contralateral monofocal LASIK in hyperopic patients with presbyopia. METHODS: In this retrospective case series, 36 consecutive patients (72 eyes) who underwent simultaneous bi-aspheric ablation (PresbyMAX: SCHWIND Eye-Tech-Solutions GmbH and Co KG, Kleinostheim, Germany) in the non-dominant eye and monofocal regular LASIK in the dominant eye for correction of hyperopia and presbyopia were reviewed for 1 year...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28065926/image-based-3d-canopy-reconstruction-to-determine-potential-productivity-in-complex-multi-species-crop-systems
#8
Alexandra J Burgess, Renata Retkute, Michael P Pound, Sean Mayes, Erik H Murchie
BACKGROUND AND AIMS: Intercropping systems contain two or more species simultaneously in close proximity. Due to contrasting features of the component crops, quantification of the light environment and photosynthetic productivity is extremely difficult. However it is an essential component of productivity. Here, a low-tech but high-resolution method is presented that can be applied to single- and multi-species cropping systems to facilitate characterization of the light environment. Different row layouts of an intercrop consisting of Bambara groundnut (Vigna subterranea) and proso millet (Panicum miliaceum) have been used as an example and the new opportunities presented by this approach have been analysed...
January 8, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28065392/mapping-the-process-of-emergency-care-at-a-teaching-hospital-in-ghana
#9
Emily Aaronson, Elizabeth Mort, Samara Soghoian
Emergency Department (ED) overcrowding has become a global concern as the number of countries with formalized emergency care systems has expanded, and the burden of trauma and non-communicable diseases in low and middle-income countries increased. In light of this, the international Emergency Medicine literature has outlined the need for operational projects in low and middle income countries which focus on the process of care. Despite this, there is limited published literature describing these types of projects...
January 3, 2017: Healthcare
https://www.readbyqxmd.com/read/28060466/progression-in-the-fountain-pen-approach-from-2d-writing-to-3d-free-form-micro-nanofabrication
#10
Jung Ho Je, Jong-Man Kim, Justyn Jaworski
The fountain pen approach, as a means for transferring materials to substrates, has shown numerous incarnations in recent years for creating 2D micro/nanopatterns and even generating 3D free-form nanostructures using a variety of material "inks". While the idea of filled reservoirs used to deliver material to a substrate via a capillary remains unchanged since antiquity, the advent of precise micromanipulation systems and functional material "inks" allows the extension of this mechanism to more high-tech applications...
January 2017: Small
https://www.readbyqxmd.com/read/28060275/automated-analysis-of-c-elegans-swim-behavior-using-celest-software
#11
Carolina Ibáñez-Ventoso, Christopher Herrera, Esteban Chen, Douglas Motto, Monica Driscoll
Dissecting the neuronal and neuromuscular circuits that regulate behavior remains a major challenge in biology. The nematode Caenorhabditis elegans has proven to be an invaluable model organism in helping to tackle this challenge, from inspiring technological approaches, building the human brain connectome, to actually shedding light on the specific molecular drivers of basic functional patterns. The bulk of the behavioral studies in C. elegans have been performed on solid substrates. In liquid, animals exhibit behavioral patterns that include movement at a range of speeds in 3D, as well as partial body movements, such as a posterior curl without anterior shape change, which introduce new challenges for quantitation...
December 7, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28057368/genomic-translational-research-paving-the-way-to-individualized-cardiac-functional-analyses-and-personalized-cardiology
#12
REVIEW
Ares Pasipoularides
For most of Medicine's past, the best that physicians could do to cope with disease prevention and treatment was based on the expected response of an average patient. Currently, however, a more personalized/precise approach to cardiology and medicine in general is becoming possible, as the cost of sequencing a human genome has declined substantially. As a result, we are witnessing an era of precipitous advances in biomedicine and bourgeoning understanding of the genetic basis of cardiovascular and other diseases, reminiscent of the resurgence of innovations in physico-mathematical sciences and biology-anatomy-cardiology in the Renaissance, a parallel time of radical change and reformation of medical knowledge, education and practice...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28048880/su-f-r-34-quantitative-perfusion-measurement-in-rectal-cancer-using-three-different-pharmacokinetic-models-implications-for-prospective-study-design
#13
K Nie, T Mao, L Shi, N Yue, S Jabbour, S Kim, X Hu, L Qian, X Sun, T Niu
PURPOSE: To compare three different pharmacokinetic models for analysis of dynamic-contrast-enhanced (DCE)-CT data with respect to different acquisition times and location of region of interest. METHODS: Eight rectal cancer patients with pre-treatment DCE-CTs were included. The dynamic sequence started 4-10seconds(s) after the injection of contrast agent. The scan included a 110s acquisition with intervals of 40×1s+15×3s+4×6s. An experienced oncologist outlined the tumor region...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048305/su-f-j-139-amplitude-of-low-frequency-fluctuation-alff-and-regional-homogeneity-reho-study-of-the-respiration-motion-control-byhypnosis
#14
Y Liu, R Li, Y Xie
PURPOSE: Respiration control by hypnosis is a method in reducing the detriment to the healthy organs or organizations for patients during radiotherapy, especially for lung and abdomen cancer (Fig.1). It's hypothesized that there exists alterations neurological brain activity during the hypnosis state of respiratory motion control in comparison with resting state. METHODS: Thirteen healthy volunteers were organized to participate in a hypnosis experiment that consisted of two sectional scans of functional magnetic resonance imaging (fMRI), rest state condition (RSC) scanning and hypnosis state condition (HSC) scanning...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047791/su-d-206-03-segmentation-assisted-fast-iterative-reconstruction-method-for-cone-beam-ct
#15
P Wu, T Mao, S Gong, J Wang, K Sheng, Y Xie, T Niu
PURPOSE: Total Variation (TV) based iterative reconstruction (IR) methods enable accurate CT image reconstruction from low-dose measurements with sparse projection acquisition, due to the sparsifiable feature of most CT images using gradient operator. However, conventional solutions require large amount of iterations to generate a decent reconstructed image. One major reason is that the expected piecewise constant property is not taken into consideration at the optimization starting point...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047611/su-f-r-48-early-prediction-of-pathological-response-of-locally-advanced-rectal-cancer-using-perfusion-ct-a-prospective-clinical-study
#16
K Nie, L Shi, N Yue, S Jabbour, S Kim, T Mao, L Qian, X Hu, X Sun, T Niu
PURPOSE: To prospectively evaluate the tumor vascularity assessed by perfusion CT for prediction of chemo-radiation treatment (CRT) response in locally advanced rectal cancer (LARC). METHODS: Eighteen consecutive patients (61.9±8.8 years, from March-June 2015) diagnosed with LARC who underwent 6-8 weeks CRT followed by surgery were included. The pre-treatment perfusion CT was acquired after a 5s delay of contrast agent injection for 45s with 1s interval. A total of 7-cm craniocaudal range covered the tumor region with 3-mm slice thickness...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047133/su-d-206-04-iterative-cbct-scatter-shading-correction-without-prior-information
#17
Y Bai, P Wu, T Mao, S Gong, J Wang, K Sheng, Y Xie, T Niu
PURPOSE: To estimate and remove the scatter contamination in the acquired projection of cone-beam CT (CBCT), to suppress the shading artifacts and improve the image quality without prior information. METHODS: The uncorrected CBCT images containing shading artifacts are reconstructed by applying the standard FDK algorithm on CBCT raw projections. The uncorrected image is then segmented to generate an initial template image. To estimate scatter signal, the differences are calculated by subtracting the simulated projections of the template image from the raw projections...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046882/su-f-j-211-scatter-correction-for-clinical-cone-beam-ct-system-using-an-optimized-stationary-beam-blocker-with-a-single-scan
#18
X Liang, S Gong, Q Zhou, Z Zhang, Y Xie, T Niu
PURPOSE: X-ray scatter photons result in significant image quality degradation of cone-beam CT (CBCT). Measurement based algorithms using beam blocker directly acquire the scatter samples and achieve significant improvement on the quality of CBCT image. Within existing algorithms, single-scan and stationary beam blocker proposed previously is promising due to its simplicity and practicability. Although demonstrated effectively on tabletop system, the blocker fails to estimate the scatter distribution on clinical CBCT system mainly due to the gantry wobble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046131/biological-recovery-of-platinum-complexes-from-diluted-aqueous-streams-by-axenic-cultures
#19
Synthia Maes, Ruben Props, Jeffrey P Fitts, Rebecca De Smet, Frank Vanhaecke, Nico Boon, Tom Hennebel
The widespread use of platinum in high-tech and catalytic applications has led to the production of diverse Pt loaded wastewaters. Effective recovery strategies are needed for the treatment of low concentrated waste streams to prevent pollution and to stimulate recovery of this precious resource. The biological recovery of five common environmental Pt-complexes was studied under acidic conditions; the chloro-complexes PtCl42- and PtCl62-, the amine-complex Pt(NH3)4Cl2 and the pharmaceutical complexes cisplatin and carboplatin...
2017: PloS One
https://www.readbyqxmd.com/read/28040589/production-of-demineralized-water-for-use-in-thermal-power-stations-by-advanced-treatment-of-secondary-wastewater-effluent
#20
Ioannis A Katsoyiannis, Petros Gkotsis, Massimo Castellana, Fabricio Cartechini, Anastasios I Zouboulis
The operation and efficiency of a modern, high-tech industrial full-scale water treatment plant was investigated in the present study. The treated water was used for the supply of the boilers, producing steam to feed the steam turbine of the power station. The inlet water was the effluent of municipal wastewater treatment plant of the city of Bari (Italy). The treatment stages comprised (1) coagulation, using ferric chloride, (2) lime softening, (3) powdered activated carbon, all dosed in a sedimentation tank...
December 29, 2016: Journal of Environmental Management
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