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https://www.readbyqxmd.com/read/28432532/a-portable-battery-powered-microfluidic-impedance-cytometer-with-smartphone-readout-towards-personal-health-monitoring
#1
Niloy Talukder, Abbas Furniturewalla, Tuan Le, Matthew Chan, Shreyas Hirday, Xinnan Cao, Pengfei Xie, Zhongtian Lin, Azam Gholizadeh, Steve Orbine, Mehdi Javanmard
We present a portable system for personalized blood cell counting consisting of a microfluidic impedance cytometer and portable analog readout electronics, feeding into an analog-to-digital converter (ADC), and being transmitted via Bluetooth to a user-accessible mobile application. We fabricated a microfluidic impedance cytometer with a novel portable analog readout. The novel design of the analog readout, which consists of a lock-in-amplifier followed by a high-pass filter stage for subtraction of drift and DC offset, and a post-subtraction high gain stage, enables detection of particles and cells as small as 1 μm in diameter, despite using a low-end 8-bit ADC...
June 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28352238/communicating-the-neuroscience-of-psychopathy-and-its-influence-on-moral-behavior-protocol-of-two-experimental-studies
#2
Robert Blakey, Adrian D Askelund, Matilde Boccanera, Johanna Immonen, Nejc Plohl, Cassandra Popham, Clarissa Sorger, Julia Stuhlreyer
Neuroscience has identified brain structures and functions that correlate with psychopathic tendencies. Since psychopathic traits can be traced back to physical neural attributes, it has been argued that psychopaths are not truly responsible for their actions and therefore should not be blamed for their psychopathic behaviors. This experimental research aims to evaluate what effect communicating this theory of psychopathy has on the moral behavior of lay people. If psychopathy is blamed on the brain, people may feel less morally responsible for their own psychopathic tendencies and therefore may be more likely to display those tendencies...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28302426/proximity-of-lateral-critical-structures-to-the-all-epiphyseal-outside-in-femoral-tunnels-in-pediatric-anterior-cruciate-ligament-reconstruction
#3
Mark K Lane, Jennifer Mutch, Kaitlyn Ratkowiak, Stephen E Lemos, Kunal Kalra
PURPOSE: To describe the proximity of the lateral critical structures (peroneal nerve [PN], popliteus tendon [PT], lateral collateral ligament [LCL], and articular cartilage [AC]) to the femoral tunnel for outside-in all-epiphyseal anterior cruciate ligament (ACL) reconstruction in reference to knee flexion angle. METHODS: All-epiphyseal ACL reconstructions were performed in 12 human cadaveric knees using arthroscopy and outside-in drilling for anatomic femoral tunnel placement that was ensured by identifying the center of the total ACL footprint...
March 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28283721/the-importance-of-blumensaat-s-line-morphology-for-accurate-femoral-acl-footprint-evaluation-using-the-quadrant-method
#4
Yoshiyuki Yahagi, Takanori Iriuchishima, Takashi Horaguchi, Makoto Suruga, Yasuaki Tokuhashi, Shin Aizawa
PURPOSE: The purpose of this study was to evaluate the difference in the center position of the ACL footprint based on grid placement using the quadrant method according to the morphological variations of the Blumensaat's line. METHODS: Fifty-nine non-paired human cadaver knees were used. The ACL was cut in the middle, and the femoral bone was cut at the most proximal point of the femoral notch, and the digital images were evaluated using Image J software. The femoral ACL footprint was periphery outlined and the center position was automatically measured...
March 10, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28272256/a-morphometric-study-of-the-middle-and-lower-cervical-vertebral-endplates-and-their-components
#5
Hang Feng, Xiang-Yi Fang, Da-Geng Huang, Cheng-Cheng Yu, Hou-Kun Li, Song-Chuan Zhao, Chao-Yuan Ge, Ru-Hai Bai, Ding-Jun Hao
Cervical disc arthroplasty is a common method of treating cervical degenerative disease. However, the footprints of most prosthesis dimensions are obtained from data of Caucasian individuals. Besides, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical endplates. We aimed to detail the three-dimensional (3D) anatomic morphology of the subaxial cervical vertebral endplate, utilizing high-precision, high-resolution scanning equipment, and provide a theoretical basis for designing appropriate disc prostheses for Chinese patients...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28248374/ultra-fast-analog-to-digital-converter-based-on-a-nonlinear-triplexer-and-an-optical-coder-with-a-photonic-crystal-structure
#6
Farhad Mehdizadeh, Mohammad Soroosh, Hamed Alipour-Banaei, Ebrahim Farshidi
In this paper, we propose what we believe is a novel all-optical analog-to-digital converter (ADC) based on photonic crystals. The proposed structure is composed of a nonlinear triplexer and an optical coder. The nonlinear triplexer is for creating discrete levels in the continuous optical input signal, and the optical coder is for generating a 2-bit standard binary code out of the discrete levels coming from the nonlinear triplexer. Controlling the resonant mode of the resonant rings through optical intensity is the main objective and working mechanism of the proposed structure...
March 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28241238/the-utilization-of-social-media-in-the-hearing-aid-community
#7
Moumita Choudhury, Zoë Dinger, Elena Fichera
Purpose: This study investigated the utilization of social media by the hearing aid (HA) community. The purpose of this survey was to analyze the participation of HA community in the social media websites. Method: A systematic survey of online HA-related social media sources was conducted. Such sources were identified using appropriate search terms. Social media participation was quantified on the basis of posts and "likes." Results: Five hundred fifty-seven social media sources were identified, including 174 Twitter accounts, 172 YouTube videos, 91 Facebook pages, 20 Facebook groups, 71 blogs, and 29 forums...
March 1, 2017: American Journal of Audiology
https://www.readbyqxmd.com/read/28058719/segmented-separable-footprint-projector-for-digital-breast-tomosynthesis-and-its-application-for-subpixel-reconstruction
#8
Jiabei Zheng, Jeffrey A Fessler, Heang-Ping Chan
PURPOSE: Digital forward and back projectors play a significant role in iterative image reconstruction. The accuracy of the projector affects the quality of the reconstructed images. Digital breast tomosynthesis (DBT) often uses the ray-tracing (RT) projector that ignores finite detector element size. This paper proposes a modified version of the separable footprint (SF) projector, called the segmented separable footprint (SG) projector, that calculates efficiently the Radon transform mean value over each detector element...
March 2017: Medical Physics
https://www.readbyqxmd.com/read/27922603/digital-footprints-facilitating-large-scale-environmental-psychiatric-research-in-naturalistic-settings-through-data-from-everyday-technologies
#9
N Bidargaddi, P Musiat, V-P Makinen, M Ermes, G Schrader, J Licinio
Digital footprints, the automatically accumulated by-products of our technology-saturated lives, offer an exciting opportunity for psychiatric research. The commercial sector has already embraced the electronic trails of customers as an enabling tool for guiding consumer behaviour, and analogous efforts are ongoing to monitor and improve the mental health of psychiatric patients. The untargeted collection of digital footprints that may or may not be health orientated comprises a large untapped information resource for epidemiological scale research into psychiatric disorders...
February 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/27875151/hindsight-encouraging-exploration-through-direct-encoding-of-personal-interaction-history
#10
Mi Feng, Cheng Deng, Evan M Peck, Lane Harrison
Physical and digital objects often leave markers of our use. Website links turn purple after we visit them, for example, showing us information we have yet to explore. These "footprints" of interaction offer substantial benefits in information saturated environments - they enable us to easily revisit old information, systematically explore new information, and quickly resume tasks after interruption. While applying these design principles have been successful in HCI contexts, direct encodings of personal interaction history have received scarce attention in data visualization...
January 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27829413/feasibility-of-digital-footprint-data-for-health-analytics-and-services-an-explorative-pilot-study
#11
Marja Harjumaa, Saila Saraniemi, Saara Pekkarinen, Minna Lappi, Heidi Similä, Minna Isomursu
BACKGROUND: As a result of digitalization, data is available about almost every aspect of our lives. Personal data collected by individuals themselves or stored by organizations interacting with people is known as a digital footprint. The purpose of this study was to identify prerequisites for collecting and using digital data that could be valuable for health data analytics and new health services. METHODS: Researchers and their contacts involved in a nationwide research project focusing on digital health in Finland were asked to participate in a pilot study on collecting their own personal data from various organizations of their own choice, such as retail chains, banks, insurance companies, and healthcare providers...
November 9, 2016: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/27786453/three-dimensional-inkjet-printed-organic-transistors-and-integrated-circuits-with-100-yield-high-uniformity-and-long-term-stability
#12
Jimin Kwon, Yasunori Takeda, Kenjiro Fukuda, Kilwon Cho, Shizuo Tokito, Sungjune Jung
In this paper, we demonstrate three-dimensional (3D) integrated circuits (ICs) based on a 3D complementary organic field-effect transistor (3D-COFET). The transistor-on-transistor structure was achieved by vertically stacking a p-type OFET over an n-type OFET with a shared gate joining the two transistors, effectively halving the footprint of printed transistors. All the functional layers including organic semiconductors, source/drain/gate electrodes, and interconnection paths were fully inkjet-printed except a parylene dielectric which was deposited by chemical vapor deposition...
November 22, 2016: ACS Nano
https://www.readbyqxmd.com/read/27776930/discrepancy-between-cervical-disc-prostheses-and-anatomical-cervical-dimensions
#13
Sinan Karaca, Ahmet Onur Akpolat, Ahmet Oztermeli, Mehmet Nuri Erdem, Mehmet Aydogan
OBJECTIVE: The aim of this study was to assess appropriateness of the sizes of available cervical disc prostheses based on tomographic measurement of human cervical vertebrae. METHODS: The anatomic dimensions of the C3-C7 segments were measured on 50 patients (age range 26-47 years) with computerized tomography scan and compared with the sizes of the popular cervical total disc prostheses (CTDP) at the market [Bryan (Medtronic), Prodisc-C (Synthes), Prestige LP (Medtronic), Discover (DePuy)]...
October 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27713104/quantitative-morphometric-study-of-the-subaxial-cervical-vertebrae-end-plate
#14
Hang Feng, Xiangyi Fang, Dageng Huang, Chengcheng Yu, Songchuan Zhao, Dingjun Hao
BACKGROUND CONTEXT: Cervical disc arthroplasty has been gradually adopted as an alternative for the treatment of cervical degenerative disease. However, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical end plates. PURPOSE: This study aimed to accurately and comprehensively quantify the three-dimensional (3D) anatomic morphology of the cervical vertebral end plate and provide a theoretical basis for designing appropriate disc prostheses...
October 3, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27638801/all-printed-planar-photoelectrochemical-cells-with-digitated-cathodes-for-the-oxidation-of-diluted-aqueous-pollutants
#15
Petr Dzik, Michal Veselý, Martina Pachovská, Michael Neumann-Spallart
A novel outline of a planar photoelectrochemical cell consisting of a semiconductor layer topped by subsequent layers of a digitated insulator and counter electrode is introduced. The use of vertically separated electrodes represents a major development in reducing the footprint (inactive areas) of planar electrochemical cells. The cells, consisting of a nanoparticular titania photoanode and a digitated, metallic cathode, were fabricated by a strictly additive process employing material printing as the exclusive deposition and patterning tool...
September 16, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27633730/pioneer-factors-and-atp-dependent-chromatin-remodeling-factors-interact-dynamically-a-new-perspective-multiple-transcription-factors-can-effect-chromatin-pioneer-functions-through-dynamic-interactions-with-atp-dependent-chromatin-remodeling-factors
#16
Erin E Swinstead, Ville Paakinaho, Diego M Presman, Gordon L Hager
Transcription factor (TF) signaling regulates gene transcription and requires a complex network of proteins. This network includes co-activators, co-repressors, multiple TFs, histone-modifying complexes, and the basal transcription machinery. It has been widely appreciated that pioneer factors, such as FoxA1 and GATA1, play an important role in opening closed chromatin regions, thereby allowing binding of a secondary factor. In this review we will focus on a newly proposed model wherein multiple TFs, such as steroid receptors (SRs), can function in a pioneering role...
September 16, 2016: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/27499895/metachronous-pancreatic-cancer-originating-from-disseminated-founder-pancreatic-intraductal-neoplasias-panins
#17
Koji Imai, Hidenori Karasaki, Yusuke Ono, Junpei Sasajima, Shin-Ichi Chiba, Hiroshi Funakoshi, Miho Muraki, Hideki Hanaoka, Takahisa Furukawa, Hiroyuki Furukawa, Toru Kono, Kazuo Nagashima, Yusuke Mizukami
Clonal populations originated from benign-looking 'founder cells' may spread widely within pancreas instead of being localized in situ before frank pancreatic ductal adenocarcinoma (PDA) can be detected. Metachronous PDA is not common event, and we here sought to define potent origin of multiple PDAs developed in a woman using advanced genetics technologies. Curative resection of pancreatic head tumour was performed; however, 'recurrent' lesions in the remnant pancreas were found 3.5 years later and total pancreatectomy was subsequently performed...
April 2015: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/27471660/open-source-data-reveals-connection-between-online-and-on-street-protest-activity
#18
Hong Qi, Pedro Manrique, Daniela Johnson, Elvira Restrepo, Neil F Johnson
There is enormous interest in inferring features of human behavior in the real world from potential digital footprints created online - particularly at the collective level, where the sheer volume of online activity may indicate some changing mood within the population regarding a particular topic. Civil unrest is a prime example, involving the spontaneous appearance of large crowds of otherwise unrelated people on the street on a certain day. While indicators of brewing protests might be gleaned from individual online communications or account content (e...
2016: EPJ Data Science
https://www.readbyqxmd.com/read/27335570/a-self-made-low-cost-infrared-system-for-evaluating-the-sciatic-functional-index-in-mice
#19
Lukas Fricker, Vincenzo Penna, Florian Lampert, G Bjoern Stark, Christian Witzel, Georgios Koulaxouzidis
The sciatic functional index (SFI) is a popular parameter for peripheral nerve evaluation that relies on footprints obtained with ink and paper. Drawbacks include smearing artefacts and a lack of dynamic information during measurement. Modern applications use digitized systems that can deliver results with less analytical effort and fewer mice. However, the systems are expensive (€40,000). This study aimed to evaluate the applicability and precision of a self-made, low-cost infrared system for evaluating SFI in mice...
May 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27232498/footprints-of-fascination-digital-traces-of-public-engagement-with-particle-physics-on-cern-s-social-media-platforms
#20
Kate Kahle, Aviv J Sharon, Ayelet Baram-Tsabari
Although the scientific community increasingly recognizes that its communication with the public may shape civic engagement with science, few studies have characterized how this communication occurs online. Social media plays a growing role in this engagement, yet it is not known if or how different platforms support different types of engagement. This study sets out to explore how users engage with science communication items on different platforms of social media, and what are the characteristics of the items that tend to attract large numbers of user interactions...
2016: PloS One
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