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https://www.readbyqxmd.com/read/29150596/forming-a-three-dimensional-porous-organic-network-via-solid-state-explosion-of-organic-single-crystals
#1
Seo-Yoon Bae, Dongwook Kim, Dongbin Shin, Javeed Mahmood, In-Yup Jeon, Sun-Min Jung, Sun-Hee Shin, Seok-Jin Kim, Noejung Park, Myoung Soo Lah, Jong-Beom Baek
Solid-state reaction of organic molecules holds a considerable advantage over liquid-phase processes in the manufacturing industry. However, the research progress in exploring this benefit is largely staggering, which leaves few liquid-phase systems to work with. Here, we show a synthetic protocol for the formation of a three-dimensional porous organic network via solid-state explosion of organic single crystals. The explosive reaction is realized by the Bergman reaction (cycloaromatization) of three enediyne groups on 2,3,6,7,14,15-hexaethynyl-9,10-dihydro-9,10-[1,2]benzenoanthracene...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29149879/risk-management-of-emergency-service-vehicle-crashes-in-the-united-states-fire-service-process-outputs-and-recommendations
#2
David P Bui, Keshia P Porter, Stephanie Griffin, Dustin D French, Alesia M Jung, Stephen Crothers, Jefferey L Burgess
BACKGROUND: Emergency service vehicle crashes (ESVCs) are a leading cause of death in the United States fire service. Risk management (RM) is a proactive process for identifying occupational risks and reducing hazards and unwanted events through an iterative process of scoping hazards, risk assessment, and implementing controls. We describe the process, outputs, and lessons learned from the application of a proactive RM process to reduce ESVCs in US fire departments. METHODS: Three fire departments representative of urban, suburban, and rural geographies, participated in a facilitated RM process delivered through focus groups and stakeholder discussion...
November 17, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29149686/preliminary-application-of-structure-from-motion-and-gis-to-document-decomposition-and-taphonomic-processes
#3
Connor D Carlton, Samantha Mitchell, Patrick Lewis
Over the past decade, Structure from Motion (SfM) has increasingly been used as a means of digital preservation and for documenting archaeological excavations, architecture, and cultural material. However, few studies have tapped the potential of using SfM to document and analyze taphonomic processes affecting burials for forensic sciences purposes. This project utilizes SfM models to elucidate specific post-depositional events that affected a series of three human cadavers deposited at the South East Texas Applied Forensic Science Facility (STAFS)...
November 2, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29148723/dna-microviscosity-characterization-with-particle-diffusometry-for-downstream-dna-detection-applications
#4
Katherine Noel Clayton, Gregory D Berglund, Jacqueline C Linnes, Tamara L Kinzer-Ursem, Steven T Wereley
Analytical characterization of DNA microviscosity provides critical biophysical insights into nuclear crowding, nucleic acid-based pharmaceutical development, and nucleic acid-based biosensor device design. However, most viscosity characterization methods require large sample volumes and destructive testing. In contrast, particle diffusometry, permits in situ analysis of DNA microviscosity with short measurement times (8 seconds) using small volumes (< 3L) which are compatible with DNA preparatory procedures...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148713/wireless-acoustic-surface-actuators-for-miniaturized-endoscopes
#5
Tian Qiu, Fabian Adams, Stefano Palagi, Kai Melde, Andrew G Mark, Ulrich Wetterauer, Arkadiusz Miernik, Peer Fischer
Endoscopy enables minimally invasive procedures in many medical fields, such as urology. However, current endoscopes are normally cable-driven, which limits their dexterity and makes them hard to miniaturize. Indeed current urological endoscopes have an outer diameter of about 3 mm and still only possess one bending degree of freedom. In this paper, we report a novel wireless actuation mechanism that increases the dexterity and that permits the miniaturization of a urological endoscope. The novel actuator consists of thin active surfaces that can be readily attached to any device and are wirelessly powered by ultrasound...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148032/secondary-glaucoma-in-uveitis-comparison-of-the-optic-nerve-head-morphology-among-a-nonmydriatic-fundus-camera-hrt-and-sd-oct
#6
Milena Pahlitzsch, Matthias K J Klamann, Saskia Jacob, Carl Erb, Sibylle Winterhalter, Necip Torun, Anna-Karina B Maier, Eckart Bertelmann
PURPOSE: To assess the correlation between the disc damage likelihood scale (DDLS) objectively measured by a nonmydriatic fundus camera, confocal laser scanning ophthalmoscopy (HRT3), and spectral-domain optical coherence tomography (SD-OCT) in uveitic glaucoma. METHODS: A total of 59 patients with uveitic glaucoma (21 female, 38 male; mean age 56.8 ± 18.7 years) were included in this prospective cross-sectional study. All patients were measured by the Kowa Nonmyd WX 3D camera (2D/3D nonmydriatic retinal camera, Kowa Company), the HRT3 (Heidelberg Engineering), and SD-OCT (Carl Zeiss Meditec) by one examiner on the same day...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29147771/maximum-striking-velocities-in-strikes-with-steel-rods-the-influence-of-rod-length-rod-mass-and-volunteer-parameters
#7
T X Trinh, S Heinke, C Rode, S Schenkl, M Hubig, G Mall, Holger Muggenthaler
In blunt force trauma to the head caused by attacks with blunt instruments, contact forces can be estimated based on the conservation of momentum if impact velocities are known. The aims of this work were to measure maximum striking velocities and to examine the influence of rod parameters such as rod mass and length as well as volunteer parameters such as sex, age, body height, body mass, body mass index and the average amount of physical exercise. Steel rods with masses of 500, 1000 and 1500 g as well as lengths of 40, 65 and 90 cm were exemplarily tested as blunt instruments...
November 16, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29145687/foot-strike-patterns-differ-between-children-and-adolescents-growing-up-barefoot-vs-shod
#8
Karsten Hollander, Johanna Elsabe de Villiers, Ranel Venter, Susanne Sehner, Karl Wegscheider, Klaus-Michael Braumann, Astrid Zech
Effects of early and permanent footwear use are not well understood. The aim of this study was to investigate the effects of habituation to footwear on foot strike patterns of children and adolescents. Healthy habitually barefoot and shod participants (aged 6-18 years) from South Africa (n=288) and Germany (n=390) performed multiple 20-m jogging and running trials with and without shoes. Each foot strike was captured using a high-speed camera to determine a rearfoot or non-rearfoot strike. The probability of a rearfoot strike in both cohorts and each age was analyzed by using a mixed-effects logistic regression adjusted for possible confounders...
November 16, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29144420/visual-positioning-indoors-human-eyes-vs-smartphone-cameras
#9
Dewen Wu, Ruizhi Chen, Liang Chen
Artificial Intelligence (AI) technologies and their related applications are now developing at a rapid pace. Indoor positioning will be one of the core technologies that enable AI applications because people spend 80% of their time indoors. Humans can locate themselves related to a visually well-defined object, e.g., a door, based on their visual observations. Can a smartphone camera do a similar job when it points to an object? In this paper, a visual positioning solution was developed based on a single image captured from a smartphone camera pointing to a well-defined object...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29144395/real-time-indoor-scene-description-for-the-visually-impaired-using-autoencoder-fusion-strategies-with-visible-cameras
#10
Salim Malek, Farid Melgani, Mohamed Lamine Mekhalfi, Yakoub Bazi
This paper describes three coarse image description strategies, which are meant to promote a rough perception of surrounding objects for visually impaired individuals, with application to indoor spaces. The described algorithms operate on images (grabbed by the user, by means of a chest-mounted camera), and provide in output a list of objects that likely exist in his context across the indoor scene. In this regard, first, different colour, texture, and shape-based feature extractors are generated, followed by a feature learning step by means of AutoEncoder (AE) models...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29144240/trial-of-music-sucrose-and-combination-therapy-for-pain-relief-during-heel-prick-procedures-in-neonates
#11
Swapnil R Shah, Shahajahan Kadage, John Sinn
OBJECTIVE: To compare the effectiveness of music, oral sucrose, and combination therapy for pain relief in neonates undergoing a heel prick procedure. STUDY DESIGN: This randomized, controlled, blinded crossover clinical trial included stable neonates >32 weeks of postmenstrual age. Each neonate crossed over to all 3 interventions in random order during consecutive heel pricks. A video camera on mute mode recorded facial expressions, starting 2 minutes before until 7 minutes after the heel prick...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29143764/road-lane-detection-robust-to-shadows-based-on-a-fuzzy-system-using-a-visible-light-camera-sensor
#12
Toan Minh Hoang, Na Rae Baek, Se Woon Cho, Ki Wan Kim, Kang Ryoung Park
Recently, autonomous vehicles, particularly self-driving cars, have received significant attention owing to rapid advancements in sensor and computation technologies. In addition to traffic sign recognition, road lane detection is one of the most important factors used in lane departure warning systems and autonomous vehicles for maintaining the safety of semi-autonomous and fully autonomous systems. Unlike traffic signs, road lanes are easily damaged by both internal and external factors such as road quality, occlusion (traffic on the road), weather conditions, and illumination (shadows from objects such as cars, trees, and buildings)...
October 28, 2017: Sensors
https://www.readbyqxmd.com/read/29142346/conjugation-of-antibodies-with-radiogold-nanoparticles-as-an-effector-targeting-agents-in-radiobioconjugate-cancer-therapy-optimized-labeling-and-biodistribution-results
#13
Pankaj Garg, Daya Kishore Hazra
Purpose of the Study: Drug accessibility to the tumor cells is an important area of concern with an anticipation of increasing the efficacy of the drug to be delivered to a specific site. The biogenesis of gold nanoparticles using plant-mediated phytochemical extracts and their possible linkage to cancer antibodies with an aim at delivering the conjugate specifically to the tumor-associated antigen is the basic objective of the research. Materials and Methodology: Radiolabeling of antibodies with gold nanoparticles was carried out by a protocol, and the labeling extent of antibodies was compared with that of a radiogold solution to ordinary particulate size (AuNO-Ab)...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29142344/investigating-the-role-of-global-histogram-equalization-technique-for-99m-technetium-methylene-diphosphonate-bone-scan-image-enhancement
#14
Anil Kumar Pandey, Param Dev Sharma, Pankaj Dheer, Girish Kumar Parida, Harish Goyal, Chetan Patel, Chandrashekhar Bal, Rakesh Kumar
Purpose of the Study: (99m)Technetium-methylene diphosphonate ((99m)Tc-MDP) bone scan images have limited number of counts per pixel, and hence, they have inferior image quality compared to X-rays. Theoretically, global histogram equalization (GHE) technique can improve the contrast of a given image though practical benefits of doing so have only limited acceptance. In this study, we have investigated the effect of GHE technique for (99m)Tc-MDP-bone scan images. Materials and Methods: A set of 89 low contrast (99m)Tc-MDP whole-body bone scan images were included in this study...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29142343/calculating-gamma-camera-uniformity-parameters-beyond-the-vendor-specific-protocol
#15
Anil Kumar Pandey, Param Dev Sharma, Jay Prakash Kumar, Kartik Saroha, Chetan Patel, Chandra Sekhar Bal, Rakesh Kumar
Objectives: The aim of this study was to develop and verify a personal computer-based software tool for calculating uniformity indices of gamma camera. Materials and Methods: The program was developed in MATLAB R2013b under Microsoft Windows operating system. Noise-less digital phantoms with known uniformity parameters were used to verify the accuracy of the program. Two hundred and forty-four Co-57 flood source images were acquired on Symbia T6 and Discovery nuclear medicine/computed tomography 670...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29142283/a-mobile-device-based-imaging-spectrometer-for-environmental-monitoring-by-attaching-a-lightweight-small-module-to-a-commercial-digital-camera
#16
Fuhong Cai, Wen Lu, Wuxiong Shi, Sailing He
Spatially-explicit data are essential for remote sensing of ecological phenomena. Lately, recent innovations in mobile device platforms have led to an upsurge in on-site rapid detection. For instance, CMOS chips in smart phones and digital cameras serve as excellent sensors for scientific research. In this paper, a mobile device-based imaging spectrometer module (weighing about 99 g) is developed and equipped on a Single Lens Reflex camera. Utilizing this lightweight module, as well as commonly used photographic equipment, we demonstrate its utility through a series of on-site multispectral imaging, including ocean (or lake) water-color sensing and plant reflectance measurement...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141974/scaling-up-dietary-data-for-decision-making-in-low-income-countries-new-technological-frontiers
#17
REVIEW
Winnie Bell, Brooke A Colaiezzi, Cathleen S Prata, Jennifer C Coates
Dietary surveys in low-income countries (LICs) are hindered by low investment in the necessary research infrastructure, including a lack of basic technology for data collection, links to food composition information, and data processing. The result has been a dearth of dietary data in many LICs because of the high cost and time burden associated with dietary surveys, which are typically carried out by interviewers using pencil and paper. This study reviewed innovative dietary assessment technologies and gauged their suitability to improve the quality and time required to collect dietary data in LICs...
November 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/29141047/is-species-richness-driving-intra-and-interspecific-interactions-and-temporal-activity-overlap-of-a-hantavirus-host-an-experimental-test
#18
André V Rubio, Ivan Castro-Arellano, James N Mills, Rurik List, Rafael Ávila-Flores, Gerardo Suzán
High species diversity of the potential animal host community for a zoonotic pathogen may reduce pathogen transmission among the most competent host, a phenomenon called the "dilution effect", but the mechanisms driving this effect have been little studied. One proposed mechanism is "encounter reduction" where host species of low-competency decrease contact rates between infected and susceptible competent hosts, especially in directly transmitted diseases. We conducted an experiment in outdoor enclosures in northwestern Mexico where we manipulated rodent assemblages to assess the effect of species richness on the frequency of intra- and interspecific interactions and activity patterns of a hantavirus reservoir host (North American deermouse; Peromyscus maniculatus)...
2017: PloS One
https://www.readbyqxmd.com/read/29141008/smartphone-based-quantitative-measurements-on-holographic-sensors
#19
Gita Khalili Moghaddam, Christopher Robin Lowe
The research reported herein integrates a generic holographic sensor platform and a smartphone-based colour quantification algorithm in order to standardise and improve the determination of the concentration of analytes of interest. The utility of this approach has been exemplified by analysing the replay colour of the captured image of a holographic pH sensor in near real-time. Personalised image encryption followed by a wavelet-based image compression method were applied to secure the image transfer across a bandwidth-limited network to the cloud...
2017: PloS One
https://www.readbyqxmd.com/read/29140977/low-cost-and-open-source-multi-fluorescence-imaging-system-for-teaching-and-research-in-biology-and-bioengineering
#20
Isaac Nuñez, Tamara Matute, Roberto Herrera, Juan Keymer, Timothy Marzullo, Timothy Rudge, Fernán Federici
The advent of easy-to-use open source microcontrollers, off-the-shelf electronics and customizable manufacturing technologies has facilitated the development of inexpensive scientific devices and laboratory equipment. In this study, we describe an imaging system that integrates low-cost and open-source hardware, software and genetic resources. The multi-fluorescence imaging system consists of readily available 470 nm LEDs, a Raspberry Pi camera and a set of filters made with low cost acrylics. This device allows imaging in scales ranging from single colonies to entire plates...
2017: PloS One
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