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https://www.readbyqxmd.com/read/28806865/glucose-sensitive-holographic-bio-sensors-fundamentals-and-applications
#1
Marjan Heidari, Bahareh Dabirmanesh, Hossein Mahdavi, Khosro Khajeh
Nowadays sensors and especially biosensors play an important role in medical diagnosis and detection of food and environment contaminations. Biosensors’ facilities have been improved significantly by using technologies such as surface plasmon resonance, microfluidics, laser, and electrochemistry. These technologies are now available on chips in micro- and nano-scale and are capable of measuring the quantity of more than one analyte at once. One branch of these sensors is the holographic (bio)sensor. Reflection holographic sensors, which are optical devices fabricated based on Bragg’s law, can diffract light with specific wavelength as they absorb or release special ions or molecule depending on their polymer structure...
August 15, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28805487/state-of-the-art-nanopathological-diagnostics
#2
Luca Roncati, Giuseppe Barbolini
The nanopathological diagnostics (ND) is an ultra-specialized branch of pathological anatomy aimed to identify the nanoparticles of metallic, semimetallic, or nonmetallic elements in the inorganic particulate matter present inside pathological tissues, even on the nanometer scale. ND exploits an environmental scanning electron microscope, connected to an X-ray microprobe mounted on an energy-dispersive spectrometer. The searching of nanoparticles can be performed on paraffin-embedded material, omitting emissions of black overlay and plating procedures...
August 14, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28803215/structural-tribological-and-mechanical-properties-of-the-hind-leg-joint-of-a-jumping-insect-using-katydids-to-inform-bioinspired-lubrication-systems
#3
Jun Kyun Oh, Spencer T Behmer, Richelle Marquess, Cengiz Yegin, Ethan A Scholar, Mustafa Akbulut
This study investigates the structural properties of the hind leg femur-tibia joint in adult katydids (Orthoptera: Tettigoniidae), including its tribological and mechanical properties. It is of particular interest because the orthopteran (e.g., grasshoppers, crickets, and katydids) hind leg is highly specialized for jumping. We show that the katydid hind leg femur-tibia joint had unique surfaces and textures, with a friction coefficient (μ) at its coupling surface of 0.053 ± 0.001. Importantly, the sheared surfaces at this joint showed no sign of wear or damage, even though it had undergone thousands of external shearing cycles...
August 9, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28803041/the-influence-of-traumatic-brain-injury-on-treatment-outcomes-of-concurrent-treatment-for-ptsd-and-substance-use-disorders-using-prolonged-exposure-cope-in-veterans
#4
Daniel F Gros, Cynthia L Lancaster, Michael David Horner, Derek D Szafranski, Sudie E Back
BACKGROUND: The co-occurrence of posttraumatic stress disorder (PTSD), substance use disorders (SUD), and traumatic brain injury (TBI) in veterans of Operations Enduring/Iraqi Freedom and New Dawn has received much attention in the literature. Although hypotheses have been presented and disseminated that TBI history will negatively influence treatment response, little data exist to support these claims. The present study investigates the influence of TBI history on response to COPE (Concurrent Treatment of PTSD and SUD Using Prolonged Exposure), a 12-session, integrated psychotherapy designed to address co-occurring PTSD and SUD...
July 17, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28802627/sensorless-control-for-switched-reluctance-motor-based-on-special-position-detection
#5
Jie Shao, Zhiquan Deng, Yu Gu
This paper proposes a new sensorless control approach for switched reluctance motor (SRM) in the single pulse control mode in high speed operation. The sensorless method uses the cross point position of transformer electromotive force (EMF) and motional back electromotive force (BEMF) to estimate the rotor position. The cross point position can be derived from the inductance model of SRM, and it is regarded as reference position. The rotor position can be calculated by detecting the special position for each electrical cycle...
August 9, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28800632/radar-a-novel-fast-screening-method-for-reading-difficulties-with-special-focus-on-dyslexia
#6
Ioannis Smyrnakis, Vassilios Andreadakis, Vassilios Selimis, Michail Kalaitzakis, Theodora Bachourou, Georgios Kaloutsakis, George D Kymionis, Stelios Smirnakis, Ioannis M Aslanides
Dyslexia is a developmental learning disorder of single word reading accuracy and/or fluency, with compelling research directed towards understanding the contributions of the visual system. While dyslexia is not an oculomotor disease, readers with dyslexia have shown different eye movements than typically developing students during text reading. Readers with dyslexia exhibit longer and more frequent fixations, shorter saccade lengths, more backward refixations than typical readers. Furthermore, readers with dyslexia are known to have difficulty in reading long words, lower skipping rate of short words, and high gaze duration on many words...
2017: PloS One
https://www.readbyqxmd.com/read/28800380/advances-in-risk-analysis-with-big-data
#7
Tsan-Ming Choi, James H Lambert
With cloud computing, Internet-of-things, wireless sensors, social media, fast storage and retrieval, etc., organizations and enterprises have access to unprecedented amounts and varieties of data. Current risk analysis methodology and applications are experiencing related advances and breakthroughs. For example, highway operations data are readily available, and making use of them reduces risks of traffic crashes and travel delays. Massive data of financial and enterprise systems support decision making under risk by individuals, industries, regulators, etc...
August 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28799849/public-health-activist-skills-pyramid-a-model-for-implementing-health-in-all-policies
#8
Behzad Damari, Elham Ehsani Chimeh
Affecting public health for society requires various competencies. In fact, the prerequisite for the implementation of health in all policies should be effectiveness of public health activists (PHAs) in these competencies. This study aims to determine the competencies of the activists in public health. The present qualitative study reviewed the literature and adopted qualitative methods like content analysis, stakeholder interviews, and conducted focus group discussions with related experts. In each stage, the required competencies were extracted through drawing the main action processes of a PHA...
August 11, 2017: Social Work in Public Health
https://www.readbyqxmd.com/read/28798200/wearable-physiological-monitoring-for-human-thermal-work-strain-optimization
#9
Mark J Buller, Alexander Pearson Welles, Karl E Friedl
Safe performance limits of soldiers and athletes have typically relied on predictive work-rest models of ambient conditions, average work intensity, and characteristics of the population. Bioengineering advances in noninvasive sensor technologies including miniaturization, reduced cost, power requirements, and comfort now make it possible to produce individual predictions of safe thermal-work limits. These precision medicine assessments depend on the development of thoughtful algorithms based on physics and physiology...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28797848/development-of-palliative-care-pc-in-armenia
#10
Anahit Papikyan, Stephen R Connor, Davit Amiryan
In the last seven years, considerable progress has been made in palliative care in Armenia but many problems remain unresolved. Policies developed include completion of a national needs assessment, a recognized working group on palliative care formed, national standards approved, a concept paper on palliative care approved, resolutions on palliative care as a specialized service approved, palliative care became a subspecialty in medicine, palliative care qualifications developed, and a social assistance package approved...
August 7, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28796734/laparoscopic-versus-open-lateral-lymph-node-dissection-for-locally-advanced-low-rectal-cancer-a-subgroup-analysis-of-a-large-multicenter-cohort-study-in-japan
#11
Tomohiro Yamaguchi, Tsuyoshi Konishi, Yusuke Kinugasa, Seiichiro Yamamoto, Takashi Akiyoshi, Ryosuke Okamura, Masaaki Ito, Yoji Nishimura, Manabu Shiozawa, Shigeki Yamaguchi, Koya Hida, Yoshiharu Sakai, Masahiko Watanabe
BACKGROUND: Mesorectal excision with lateral lymph node dissection is the standard treatment for locally advanced low rectal cancer in Japan. However, the safety and feasibility of laparoscopic lateral lymph node dissection remain to be determined. OBJECTIVE: The purpose of this study was to evaluate the safety and feasibility of laparoscopic versus open lateral lymph node dissection for locally advanced low rectal cancer. DESIGN: This was a retrospective cohort study using an exact matching method...
September 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28795676/-design-and-application-of-medical-electric-leg-raising-machine
#12
Jintang Liang, Jinyuan Chen, Zixian Zhao, Jinfeng Lin, Juanhong Li, Jingliang Zhong
Passive leg raising is widely used in clinic, but it lacks of specialized mechanical raise equipment. It requires medical staff to raise leg by hand or requires a multi-functional bed to raise leg, which takes time and effort. Therefore we have developed a new medical electric leg-raising machine. The equipment has the following characteristics: simple structure, stable performance, easy operation, fast and effective, safe and comfortable. The height range of the lifter is 50-120 cm, the range of the angle of raising leg is 10degree angle-80degree angle, the maximum supporting weight is 40 kg...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28795061/a-multi-agent-based-approach-for-prehospital-emergency-management
#13
Reza Safdari, Jaleh Shoshtarian Malak, Niloofar Mohammadzadeh, Azimeh Danesh Shahraki
OBJECTIVE: To demonstrate an architecture to automate the prehospital emergency process to categorize the specialized care according to the situation at the right time for reducing the patient mortality and morbidity. METHODS: Prehospital emergency process were analyzed using existing prehospital management systems, frameworks and the extracted process were modeled using sequence diagram in Rational Rose software. System main agents were identified and modeled via component diagram, considering the main system actors and by logically dividing business functionalities, finally the conceptual architecture for prehospital emergency management was proposed...
July 2017: Bulletin of Emergency and Trauma
https://www.readbyqxmd.com/read/28794695/water-filtered-infrared-a-wira-overcomes-swallowing-disorders-and-hypersalivation-a-case-report
#14
Gerd Hoffmann
Case description: A patient with a Barrett oesophageal carcinoma and a resection of the oesophagus with gastric pull-up developed swallowing disorders 6 years and 2 months after the operation. Within 1 year and 7 months two recurrences of the tumor at the anastomosis were found and treated with combined chemoradiotherapy or chemotherapy respectively. 7 years and 9 months after the operation local tumor masses and destruction were present with no ability to orally drink or eat (full feeding by jejunal PEG tube): quality of life was poor, as saliva and mucus were very viscous (pulling filaments) and could not be swallowed and had to be spat out throughout the day and night resulting in short periods of sleep (awaking from the necessity to spit out)...
2017: German Medical Science: GMS E-journal
https://www.readbyqxmd.com/read/28794587/predictive-factors-for-fever-and-sepsis-following-percutaneous-nephrolithotomy-a-review-of-580-patients
#15
Sumit Suresh Bansal, Prakash Wamanrao Pawar, Ajit S Sawant, Ashwin Sunil Tamhankar, Sunil Raghunath Patil, Gaurav Vinod Kasat
AIMS: There has been much speculation and discussion about the infective complications of percutaneous nephrolithotomy (PCNL). While fever is common after PCNL, the incidence of it progressing to urosepsis is fortunately less. Which patient undergoing PCNL is at risk of developing urosepsis and in whom aggressive treatment of fever postoperatively may prevent the progression to severe sepsis becomes a very important question. This study aims to answer these vital questions. SETTINGS AND DESIGN: This is a single institutional, retrospective study over a period of 3 years...
July 2017: Urology Annals
https://www.readbyqxmd.com/read/28792052/asymmetric-synthesis-of-%C3%AE-deuterated-%C3%AE-amino-acids
#16
Ryosuke Takeda, Hidenori Abe, Norio Shibata, Hiroki Moriwaki, Kunisuke Izawa, Vadim A Soloshonok
α-Deuterated-α-amino acids represent a very special class of stable isotopically labeled compounds, used in advanced biomedical research. Herein, we disclose a generalized approach for the preparation of α-(2)H-α-amino acids in enantiomerically pure form and with up to 99% deuteration. The reaction chemistry involved in this process is based on the dynamic kinetic resolution of racemates or (S)-(R) interconversion via the formation of intermediate Ni(ii) complexes derived from unprotected amino acids and recyclable tridentate ligands...
August 9, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28790992/the-cyanobacteria-dominated-sponge-dactylospongia-elegans-in-the-south-china-sea-prokaryotic-community-and-metagenomic-insights
#17
Zhao-Ming Gao, Guo-Wei Zhou, Hui Huang, Yong Wang
The South China Sea is a special reservoir of sponges of which prokaryotic communities are less studied. Here, a new record of the sponge Dactylospongia elegans is reported near the coast of Jinqing Island in the South China Sea, and its prokaryotic community is comprehensively investigated. Sponge specimens displayed lower microbial diversity compared with surrounding seawater. At the phylum level, prokaryotic communities were consistently dominated by Proteobacteria, followed by Cyanobacteria, Chloroflexi, Acidobacteria, Actinobacteria, Gemmatimonadetes, Thaumarchaeota, and Poribacteria...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28790955/oxygen-toxicity-and-special-operations-forces-diving-hidden-and-dangerous
#18
REVIEW
Thijs T Wingelaar, Pieter-Jan A M van Ooij, Rob A van Hulst
In Special Operations Forces (SOF) closed-circuit rebreathers with 100% oxygen are commonly utilized for covert diving operations. Exposure to high partial pressures of oxygen (PO2) could cause damage to the central nervous system (CNS) and pulmonary system. Longer exposure time and higher PO2 leads to faster development of more serious pathology. Exposure to a PO2 above 1.4 ATA can cause CNS toxicity, leading to a wide range of neurologic complaints including convulsions. Pulmonary oxygen toxicity develops over time when exposed to a PO2 above 0...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28790470/management-guidelines-for-metal-on-metal-hip-resurfacing-arthroplasty-a-strategy-on-followup
#19
Naoki Nakano, Andrea Volpin, Jonathan Bartlett, Vikas Khanduja
Despite the initial promise of metal-on-metal (MoM) implants as the ideal bearing surface for hip replacements and resurfacings, high short term failure rates due to an adverse reaction to metal debris (ARMD) have led to a dramatic reduction in the number of MoM implants used in the modern era. With over one million patients worldwide having undergone hip operations utilizing a MoM bearing surface, the long term outcomes for such patients remains unknown, and there is much debate as to the most effective management of these patients...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28789884/single-molecule-imaging-and-manipulation-of-biomolecular-machines-and-systems
#20
REVIEW
Ryota Iino, Tatsuya Iida, Akihiko Nakamura, Ei-Ichiro Saita, Huijuan You, Yasushi Sako
Biological molecular machines support various activities and behaviors of cells, such as energy production, signal transduction, growth, differentiation, and migration. Scope of Review We provide an overview of single-molecule imaging methods involving both small and large probes used to monitor the dynamic motions of molecular machines in vitro (purified proteins) and in living cells, and single-molecule manipulation methods used to measure the forces, mechanical properties and responses of biomolecules. We also introduce several examples of single-molecule analysis, focusing primarily on motor proteins and signal transduction systems...
August 5, 2017: Biochimica et Biophysica Acta
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