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https://www.readbyqxmd.com/read/28325023/an-affordable-cuff-less-blood-pressure-estimation-solution
#1
Monika Jain, Niranjan Kumar, Sujay Deb
This paper presents a cuff-less hypertension pre-screening device that non-invasively monitors the Blood Pressure (BP) and Heart Rate (HR) continuously. The proposed device simultaneously records two clinically significant and highly correlated biomedical signals, viz., Electrocardiogram (ECG) and Photoplethysmogram (PPG). The device provides a common data acquisition platform that can interface with PC/laptop, Smart phone/tablet and Raspberry-pi etc. The hardware stores and processes the recorded ECG and PPG in order to extract the real-time BP and HR using kernel regression approach...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324711/fire-hazard-reduction-of-hollow-glass-microspheres-in-thermoplastic-polyurethane-composites
#2
Chuanmei Jiao, Hongzhi Wang, Shaoxiang Li, Xilei Chen
Nowadays, reducing the fire hazard of thermoplastic polyurethane (TPU) is an important research direction in the fields of fire safety materials. In this article, hollow glass microsphere (HGM) was used to reduce the fire hazard of TPU in combustion process. The fire characteristics including smoke and heat production of TPU composites were evaluated using smoke density test (SDT) and cone calorimeter test (CCT). And the thermal decomposition and flammable properties were further studied using thermogravimetric analysis/infrared spectrometry (TG-IR) and limiting oxygen index (LOI), etc...
February 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28320100/drosophila-melanogaster-a-potential-model-organism-for-identification-of-pharmacological-properties-of-plants-plant-derived-components
#3
REVIEW
Komal Panchal, Anand K Tiwari
Plants/plant-derived components have been used from ancient times to treat/cure several human diseases. Plants and their parts possess several chemical components that play the vital role in the improvement of human health and their life expectancy. Allopathic medicines have been playing a key role in the treatment of several diseases. Though allopathic medicines provide fast relief, long time consumption cause serious health concerns such as hyperallergic reactions, liver damage, etc. So, the study of medicinal plants which rarely cause any side effect is very important to mankind...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319786/lower-cardiorespiratory-fitness-is-associated-with-more-time-spent-sedentary-in-first-episode-psychosis-a-pilot-study
#4
Davy Vancampfort, Marc De Hert, Inez Myin-Germeys, Ruud van Winkel, Joseph Firth, Tine Van Damme, Michel Probst
Patients with a psychotic disorder show lower cardiorespiratory fitness and higher mortality rates compared to healthy individuals. The aim of this cross-sectional study was to explore whether in patients with first-episode psychosis a low cardiorespiratory fitness is associated with decreased physical activity and increased sedentary levels. Twenty-nine outpatients (21 men; 22.8±5.1 years) performed a maximal exercise test to assess their maximum oxygen uptake (VO2max), wore a Senswear armband for five consecutive days and were assessed with the Positive and Negative Syndrome Scale...
March 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28319131/a-direct-method-to-solve-optimal-knots-of-b-spline-curves-an-application-for-non-uniform-b-spline-curves-fitting
#5
Van Than Dung, Tegoeh Tjahjowidodo
B-spline functions are widely used in many industrial applications such as computer graphic representations, computer aided design, computer aided manufacturing, computer numerical control, etc. Recently, there exist some demands, e.g. in reverse engineering (RE) area, to employ B-spline curves for non-trivial cases that include curves with discontinuous points, cusps or turning points from the sampled data. The most challenging task in these cases is in the identification of the number of knots and their respective locations in non-uniform space in the most efficient computational cost...
2017: PloS One
https://www.readbyqxmd.com/read/28318965/the-social-benefits-of-weee-re-use-schemes-a-cost-benefit-analysis-for-pcs-in-spain
#6
Xose Manuel González, Miguel Rodríguez, Yolanda Pena-Boquete
One goal of the new European legislation set out in WEEE Directive 2012/19/UE is the promotion of WEEE re-use schemes. However, some authors are rather sceptical about the contribution of WEEE re-use schemes to improve resource efficiency. In order to evaluate and to design adequate policy instruments, some authors recommend the cost-benefit analysis (CBA) as a compulsory first step. In this context, the main contribution of this paper is to enlarge the empirical literature by providing a CBA of re-use schemes versus recycling processes of PCs...
March 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28318954/computed-tomography-perfusion-based-decision-making-for-acute-ischemic-stroke-missing-the-mismatch
#7
J A Molad, M Findler, E Auriel
The emerging use of mechanical thrombectomy for acute ischemic stroke treatment focuses on the importance of patient selection. Computed tomography perfusion (CTP) is one of widely used techniques. However, the accuracy and reliability of this modality is in debate among vascular neurologists. We present a case of an 80-year-old man admitted because of acute ischemic stroke. CT angiography demonstrated left proximal M2 occlusion. As CTP demonstrated signs of large ischemic core with no significant penumbra, mechanical thrombectomy was not performed following tPA administration...
March 15, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28318118/distinct-expression-of-nk2-homeobox-1-nkx2-1-and-goblet-cell-hyperplasia-in-nasal-polyps-with-different-endotypes
#8
Jintao Du, Luo Ba, Bo Li, Feng Liu, Xianting Hu, Jie Zhang, Yafeng Liu, Junming Xian, Sixi Liu, Huabin Li
BACKGROUND: Decreased expression of airway epithelial-specific transcription factor NK2 homeobox 1 (NKX2-1) was associated with allergic inflammation in asthma patients. However, the expression and role of NKX2-1 in nasal polyps (NPs) with different endotypes were undefined yet. METHODS: We examined the expression of key cytokines (interleukin [IL]-4 IL-5, IL-13, and IL-17A, etc.) and NKX2-1 in NPs with different endotypes and control tissues by immunohistochemistry staining, qualitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot analysis...
March 20, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28317453/ebola-virus-epidemiology-diagnosis-and-control-threat-to-humans-lessons-learnt-and-preparedness-plans-an-update-on-its-40-year-s-journey
#9
Raj Kumar Singh, Kuldeep Dhama, Yashpal Singh Malik, Muthannan Andavar Ramakrishnan, Kumaragurubaran Karthik, Rekha Khandia, Ruchi Tiwari, Ashok Munjal, Mani Saminathan, Swati Sachan, Perumal Arumugam Desingu, Jobin Jose Kattoor, Hafiz M N Iqbal, Sunil Kumar Joshi
Ebola virus (EBOV) is an extremely contagious pathogen and causes lethal hemorrhagic fever disease in man and animals with high fatality rates. The recently occurred Ebola virus disease (EVD) outbreaks in the West African countries have categorized it as an international health concern. For the virus maintenance and transmission, the non-human primates and reservoir hosts like fruit bats have played a vital role. Furthermore, the virus may also get transferred through contaminated biological fluids like breast milk, tears, urine, semen, blood, etc...
March 20, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28316957/the-evolution-of-computer-assisted-total-hip-arthroplasty-and-relevant-applications
#10
EDITORIAL
Jun-Dong Chang, In-Sung Kim, Atul M Bhardwaj, Ramachandra N Badami
In total hip arthroplasty (THA), the accurate positioning of implants is the key to achieve a good clinical outcome. Computer-assisted orthopaedic surgery (CAOS) has been developed for more accurate positioning of implants during the THA. There are passive, semi-active, and active systems in CAOS for THA. Navigation is a passive system that only provides information and guidance to the surgeon. There are 3 types of navigation: imageless navigation, computed tomography (CT)-based navigation, and fluoroscopy-based navigation...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28316922/miracle-cells-for-natural-dentistry-a-review
#11
REVIEW
Rani Somani, Shipra Jaidka, Neeti Bajaj, Sameksha Arora
Stem cells are undifferentiated cells that can differentiate into specialized cells. Recently, enormous growth has been seen in the recognition of stem cell-based therapies, which have the potential to ameliorate the life of patients with conditions that span from Parkinson's disease to cardiac ischemia to bone or tooth loss. This research has produced new but unexplored possibilities in the regeneration of different organs and tissues. Presently, research is focused on the proficiency of stem cells and their utilization in dentistry, which is gaining interest...
January 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28316226/-basic-characteristics-and-survival-analysis-of-patients-with-hepatocellular-carcinoma
#12
C T Guan, H Zhao, X Q Li, C X Qu, J Q Cai, W W Wei, Y L Qiao
Objective: To analyze the basic characteristics of patients with hepatocellular carcinoma (HCC), and further explore the major factors affecting the prognosis of HCC patients. Methods: A total of 800 HCC patients were randomly selected from the Cancer Hospital, Chinese Academy of Medical Sciences. Their clinical and follow-up information was obtained from medical record. Univariate analysis of variance, Kaplan-Meier method and Cox regression analysis were used to analyze the patients' age at diagnosis and survival time, etc...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28316222/-the-clinical-characteristics-surgical-procedures-and-prognosis-of-solid-pseudopapillary-tumor-of-the-pancreas
#13
H Yang, N Li, W Y Deng, S X Luo
Objective: To explore the clinical characteristics, surgical procedures and prognosis of solid pseudopapillary tumor of the pancreas(SPTP). Methods: The clinical and follow-up data of 55 cases with SPTP in Henan Tumor Hospital from June 2005 to April 2015 were retrospectively analyzed. Results: There were 55 SPTP cases, including 7 males and 48 females. The age ranged from 16 to 76 (median, 33). Clinical presentations of SPTP were not specific. The mean size of the tumor was 7.6 cm (range from 2 to 25cm). Pancreatic head and tail were the most common locations of SPTP...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315685/abcb10-depletion-reduces-unfolded-protein-response-in-mitochondria
#14
Masato Yano
Mitochondria have many functions, including ATP generation. The electron transport chain (ETC) and the coupled ATP synthase generate ATP by consuming oxygen. Reactive oxygen species (ROS) are also produced by ETC, and ROS damage deoxyribonucleic acids, membrane lipids and proteins. Recent analysis indicate that mitochondrial unfolded protein response (UPR(mt)), which enhances expression of mitochondrial chaperones and proteases to remove damaged proteins, is activated when damaged proteins accumulate in the mitochondria...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28315463/in-vitro-biphasic-dissolution-tests-and-their-suitability-for-establishing-in-vitro-in-vivo-correlations-a-historical-review
#15
REVIEW
Aude Pestieau, Brigitte Evrard
For many decades, one of the most critical issues in the pharmaceutical industry has been the poor solubility of some drugs. Indeed, a prerequisite for drug absorption is the presence of dissolved drug at the absorption site and this can be challenging for compounds with low aqueous solubility such as BCS class II (low solubility, high permeability) and IV (low solubility, low permeability) compounds. If the development of oral delivery formulations of these compounds is frequently challenging to formulation scientists in the pharmaceutical industry, the in vitro evaluation of these new formulations is also a great challenge...
March 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28315020/novel-biomarkers-for-non-functioning-invasive-pituitary-adenomas-were-identified-by-using-analysis-of-micrornas-expression-profile
#16
Silin Wu, Ye Gu, Yuying Huang, Tyh-Chai Wong, Hailin Ding, Tengfei Liu, Yu Zhang, Xiaobiao Zhang
The microRNAs (miRNAs) are involved in multiple pathological processes among various types of tumors. However, the functions of miRNAs in benign brain tumors are largely unexplored. In order to explore the pathogenesis of the invasiveness in non-functional pituitary adenoma (NFPA), the miRNAs expression profile was analyzed between invasive and non-invasive non-functional pituitary adenoma by miRNAs microarray. Six most significant differentially expressed miRNAs were identified including four upregulated miRNAs hsa-miR-181b-5p, hsa-miR-181d, hsa-miR-191-3p, and hsa-miR-598 and two downregulated miRNAs hsa-miR-3676-5p and hsa-miR-383...
March 17, 2017: Biochemical Genetics
https://www.readbyqxmd.com/read/28314077/comparative-subproteomic-analysis-of-clinically-acquired-fluoroquinolone-resistance-and-ciprofloxacin-stress-in-salmonella-typhimurium-dt104b
#17
Susana Correia, Michel Hébraud, Ingrid Chafsey, Christophe Chambon, Didier Viala, Yolanda Sáenz, José Luis Capelo, Patrícia Poeta, Gilberto Igrejas
PURPOSE: Antimicrobial resistance is a worldwide public health threat and Salmonella enterica subsp. enterica serotype Typhimurium phage type DT104B multiresistant strains with additional quinolone resistance have been responsible for global outbreaks and high mortality. Quinolone resistance is known to be multifactorial but is still far from a complete understanding. To give new insights about the resistance mechanisms involved, this work aimed to evaluate subproteome changes between a S...
March 17, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28306204/preparation-of-superhydrophilic-and-underwater-superoleophobic-nanofiber-based-meshes-from-waste-glass-for-multifunctional-oil-water-separation
#18
Qinglang Ma, Hongfei Cheng, Yifu Yu, Ying Huang, Qipeng Lu, Shikui Han, Junze Chen, Rong Wang, Anthony G Fane, Hua Zhang
The deterioration of water resources due to oil pollution, arising from oil spills, industrial oily wastewater discharge, etc., urgently requires the development of novel functional materials for highly efficient water remediation. Recently, superhydrophilic and underwater superoleophobic materials have drawn significant attention due to their low oil adhesion and selective oil/water separation. However, it is still a challenge to prepare low-cost, environmentally friendly, and multifunctional materials with superhydrophilicity and underwater superoleophobicity, which can be stably used for oil/water separation under harsh working conditions...
March 17, 2017: Small
https://www.readbyqxmd.com/read/28304038/size-and-shape-effects-on-the-thermodynamic-properties-of-nanoscale-volumes-of-water
#19
Bjørn A Strøm, Jean-Marc Simon, Sondre K Schnell, Signe Kjelstrup, Jianying He, Dick Bedeaux
Small systems are known to deviate from the classical thermodynamic description, among other things due to their large surface area to volume ratio compared to corresponding big systems. As a consequence, extensive thermodynamic properties are no longer proportional to the volume, but are instead higher order functions of size and shape. We investigate such functions for second moments of probability distributions of fluctuating properties in the grand-canonical ensemble, focusing specifically on the volume and surface terms of Hadwiger's theorem, explained in Klain, Mathematika, 1995, 42, 329-339...
March 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28303551/antibacterial-evaluation-of-salvia-miltiorrhizae-on-escherichia-coli-by-microcalorimetry-coupled-with-chemometrics
#20
Guangyao Ying, Shanshan Zhang, Yuli Hu, Meihua Yang, Ping Chen, Xiaoru Wu, Weiying Guo, Weijun Kong
For seeking novel antibacterial agents with high efficacy and low toxicity to deal with drug resistance, the effects of Salvia miltiorrhizae from various sources on Escherichia coli were evaluated by microcalorimetry coupled with chemometrics. Firstly, the heat-flow power-time curves of E. coli growth affected by different S. miltiorrhizae samples were recorded. Then, some crucial quantitative thermo-kinetic parameters including growth rate constant, heat-flow power and heat output, etc. were obtained from theses curves and were further investigated by some powerful chemometric techniques including similarity analysis, multivariate analysis of variance, hierarchical clustering analysis and principle component analysis...
December 2017: AMB Express
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