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https://www.readbyqxmd.com/read/28922126/functional-contour-following-via-haptic-perception-and-reinforcement-learning
#1
Randall B Hellman, Cem Tekin, Mihaela van der Schaar, Veronica J Santos
Many tasks involve the fine manipulation of objects despite limited visual feedback. In such scenarios, tactile and proprioceptive feedback can be leveraged for task completion. We present an approach for real-time haptic perception and decision-making for a haptics-driven, functional contour-following task: the closure of a ziplock bag. This task is challenging for robots because the bag is deformable, transparent, and visually occluded by artificial fingertip sensors that are also compliant. A deep neural net classifier was trained to estimate the state of a zipper within a robot's pinch grasp...
September 18, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28921887/chemical-components-biological-activities-and-toxicological-evaluation-of-the-fruit-aril-of-two-precious-plant-species-from-genus-taxus
#2
Na Li, Zheng Pan, Dan Zhang, Huaxing Wang, Bao Yu, Shengping Zhao, Jiajia Guo, Jianwei Wang, Ling Yao, Weiguo Cao
The fruit (aril) of the endangered genus Taxus plants is an abandoned herbal resource. Traditionally, people enthusiasticly focus on its bark, its renewable, tremendous arils fall into the soil with seeds after they are mature. The present research investigated the fruit of two species from the genus Taxus, Taxus chinensis var. mairei and Taxus media, with regards to their antioxidant and antihyperglycaemic activities, safety, and bioactive constituents. Results showed that T. chinensis var. mairei and T. media both had certain biological activities with T...
September 18, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28919508/pro-inflammatory-chitosan-poly-%C3%AE-glutamic-acid-nanoparticles-modulate-human-antigen-presenting-cells-phenotype-and-revert-their-pro-invasive-capacity
#3
Flávia Castro, Marta L Pinto, Andreia M Silva, Catarina L Pereira, Graciosa Q Teixeira, Maria Gomez-Lazaro, Susana G Santos, Mário A Barbosa, Raquel M Gonçalves, Maria J Oliveira
Anticancer immune responses depend on efficient presentation of tumor antigens and co-stimulatory signals provided by antigen-presenting cells (APCs). However, it is described that immature dendritic cells (DCs) and macrophages at the tumor site may have an immunosuppressive profile, which limits the activity of effector T cells and supports tumor progression. Therapeutic targeting of these innate immune cells, either aiming at their elimination or re-polarization towards an immunostimulatory profile, has been pointed as an attractive approach to control tumor progression...
September 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28916604/coronary-perforation-complicating-percutaneous-coronary-intervention-in-patients-with-a-history-of-coronary-artery-bypass-surgery-an-analysis-of-309-perforation-cases-from-the-british-cardiovascular-intervention-society-database
#4
Tim Kinnaird, Richard Anderson, Nick Ossei-Gerning, James Cockburn, Alex Sirker, Peter Ludman, Mark de Belder, Thomas W Johnson, Samuel Copt, Azfar Zaman, Mamas A Mamas
BACKGROUND: The evidence base for coronary perforation (CP) occurring during percutaneous coronary intervention in patients with a history of coronary artery bypass surgery (PCI-CABG) is limited and the long-term effects unclear. Using a national PCI database, the incidence, predictors, and outcomes of CP during PCI-CABG were defined. METHODS AND RESULTS: Data were analyzed on all PCI-CABG procedures performed in England and Wales between 2005 and 2013. Multivariate logistic regressions and propensity scores were used to identify predictors of CP and its association with outcomes...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28915890/barriers-and-enablers-for-the-development-and-implementation-of-allied-health-clinical-practice-guidelines-in-south-african-primary-healthcare-settings-a-qualitative-study
#5
J M Dizon, K Grimmer, Q Louw, S Machingaidze, H Parker, H Pillen
BACKGROUND: The South African allied health (AH) primary healthcare (PHC) workforce is challenged with the complex rehabilitation needs of escalating patient numbers. The application of evidence-based care using clinical practice guidelines (CPGs) is one way to make efficient and effective use of resources. Although CPGs are common for AH in high-income countries, there is limited understanding of how to do this in low- to middle-income countries. This paper describes barriers and enablers for AH CPG uptake in South African PHC...
September 15, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28914737/evidence-of-semantic-processing-impairments-in-behavioural-variant-frontotemporal-dementia-and-parkinson-s-disease
#6
Katheryn A Q Cousins, Murray Grossman
PURPOSE OF REVIEW: Category-specific impairments caused by brain damage can provide important insights into how semantic concepts are organized in the brain. Recent research has demonstrated that disease to sensory and motor cortices can impair perceptual feature knowledge important to the representation of semantic concepts. This evidence supports the grounded cognition theory of semantics, the view that lexical knowledge is partially grounded in perceptual experience and that sensory and motor regions support semantic representations...
September 13, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28912936/combination-of-q-switched-nd-yag-and-fractional-erbium-yag-lasers-in-treatment-of-melasma-a-randomized-controlled-clinical-trial
#7
Shiva Alavi, Ehsan Abolhasani, Sharin Asadi, Mohammadali Nilforoushzadeh
Introduction: Ablative and nonablative lasers have been used to treat melasma. We aimed to assess and compare the combining Q-switched Nd:YAG laser (QSNYL) and fractional erbium:YAG laser (FEYL) with QSNYL alone in treatment of melasma. Methods: This randomized controlled clinical trial was performed in our Research Center during 2013-2014. Women with melasma and without a history of keloid formation, hypersensitivity to hydroquinone, or pigmentary changes due to laser therapy were randomly allocated to receive four sessions of either QSNYL-FEYL combination or QSNYL alone...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28911061/international-cancer-seminars-a-focus-on-esophageal-squamous-cell-carcinoma
#8
G Murphy, V McCormack, B Abedi-Ardekani, M Arnold, M C Camargo, N A Dar, S M Dawsey, A Etemadi, R C Fitzgerald, D E Fleischer, N D Freedman, A M Goldstein, S Gopal, M Hashemian, N Hu, P L Hyland, B Kaimila, F Kamangar, R Malekzadeh, C G Mathew, D Menya, G Mulima, M M Mwachiro, A Mwasamwaja, N Pritchett, Y-L Qiao, L F Ribeiro-Pinto, M Ricciardone, J Schüz, F Sitas, P R Taylor, K Van Loon, S-M Wang, W-Q Wei, C P Wild, C Wu, C C Abnet, S J Chanock, P Brennan
The International Agency for Research on Cancer (IARC) and the US National Cancer Institute (NCI) have initiated a series of cancer-focused seminars [Scelo G, Hofmann JN, Banks RE et al. International cancer seminars: a focus on kidney cancer. Ann Oncol 2016; 27(8): 1382-1385]. In this, the second seminar, IARC and NCI convened a workshop in order to examine the state of the current science on esophageal squamous cell carcinoma etiology, genetics, early detection, treatment, and palliation, was reviewed to identify the most critical open research questions...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28910949/-china-hainan-centenarian-cohort-study-study-design-and-preliminary-results
#9
Y He, F X Luan, Y Yao, S S Yang, H G Xie, J Li, M Liu, J H Wang, L Wu, Q Zhu, X P Chen, C X Ning, L N Wang, X Y Li, S B Zhang, F Zhang, Y L Zhao
Objective: To investigate the health status, functional ability, mental psychology, health care and other longevity-related characteristics of individuals aged ≥100 years as well as risk factors in Hainan province, China. Methods: China Hainan Centenarian Cohort Study (CHCCS) is a community-based, prospective cohort study to establish multi-dimensional database consisting of questionnaire findings, anthropometric parameters and biological specimens as well as imaging features. With the household registration information provided by the Department of Civil Affairs of Hainan province, a baseline survey was conducted in centenarians in 18 counties in Hainan with the oldest old in 5 counties as controls between 2014 and 2017...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28904540/assessing-emergency-nurses-clinical-competency-an-exploratory-factor-analysis-study
#10
Atefeh Ghanbari, Fateme Hasandoost, Ehsan Kazemnezhad Lyili, Rasoul Tabari Khomeiran, Maryam Momeni
BACKGROUND: Nursing as a clinical discipline is developing in the emergency wards. Health care systems should continuously assess and prioritize indicators of clinical competency in these wards. The lack of clear standards of clinical competency indicators challenges evaluation. The purpose of this study was to determine clinical competency indicators and its priority based on nurses' views in educational and therapeutic centers in Guilan. MATERIALS AND METHODS: The Q methodology was conducted in three phases, that is, phase I (determining the clinical competency indicators), phase II (classifying clinical competency indicators by an expert panel), and phase III (prioritizing clinical competency indicators)...
July 2017: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/28903631/evaluation-of-overactive-bladder-and-nocturia-as-a-risk-factor-for-hip-fracture-in-climacteric-women-a-matched-pair-case-control-study
#11
Aysun Karabulut, Serap Simavlı, Ömer Demirtaş, Nusret Ök, Harun Reşit Güngör, Ali Zümrütbaş
The aim of this study was to investigate whether overactive bladder (OAB) influences hip fractures in climacteric women by comparing the frequency of OAB and nocturia symptoms in patients with hip fractures and their age-matched controls in pre-fracture period. A total of 30 climacteric patients with a history of hip fracture were compared to a control group of 51 women in terms of OAB, nocturia and nocturia-QoL. A questionnaire composed of structured questions and Turkish validated versions of the specific questionnaires for OAB, OAB-Quality of Life (OAB-q) and nocturia-QoL was directed to the two groups...
September 14, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28899833/a-pilot-study-of-the-level-of-evidence-and-collaboration-in-published-neurosurgical-research
#12
Casey D Frey, Taylor A Wilson, Mason Decamillis, Thomas Wilson, John A Wilson, Stacey Q Wolfe, Kyle M Fargen
BACKGROUND: Large-scale studies analyzing neurosurgical published research are lacking. OBJECTIVE: This pilot study was designed to assess the feasibility of an ongoing annual neurosurgical literature and research analysis of published manuscripts in English language neurosurgery journals. METHODS: All scientific manuscripts published during 2015 in the print version of 14 English language neurosurgery journals were reviewed individually. RESULTS: A total of 4065 manuscripts were published in the 14 neurosurgical journals during 2015...
September 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28895970/mechanisms-and-applications-of-terahertz-metamaterial-sensing-a-review
#13
REVIEW
Wendao Xu, Lijuan Xie, Yibin Ying
Terahertz (THz) technology has attracted great worldwide interest and novel high-intensity THz sources and plasmonics are two of the most active fields of recent research. Being situated between infrared light and microwave radiation, the absorption of THz rays in molecular and biomolecular systems is dominated by the excitation of intramolecular and intermolecular vibrations. This indicates that THz technology is an effective tool for sensing applications. However, the low sensitivity of free-space THz detection limits the sensing applications, which gives a great opportunity to metamaterials...
September 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28887651/a-cell-culture-model-for-investigation-of-synapse-influenceability-epigenetics-expression-and-function-of-gene-targets-important-for-synapse-formation-and-preservation-in-sh-sy5y-neuroblastoma-cells-differentiated-by-retinoic-acid
#14
Kirsten Jahn, C Wieltsch, N Blumer, M Mehlich, H Pathak, A Q Khan, H Hildebrandt, H Frieling
SH-SY5Y neuroblastoma cells are frequently used for different neuronal cell culture models. As there is no "gold-standard", miscellaneous protocols exist to differentiate these cells into a neuronal cell type. Here, the aim was to find a differentiation condition making cells suitable for investigation of influenceability of synapses by environmental conditions in pharmacologic experiments. For this purpose, effects on synapse molecules should be somehow rateable and cells should be usable for functional analysis like calcium imaging...
September 8, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28886263/functional-peptides-derived-from-rice-bran-proteins
#15
Y Q Liu, P Strappe, W T Shang, Z K Zhou
Rice bran has been predominantly used in the feed industry, and only recently it has attracted greater attention in terms of human nutrition with increasing knowledge of its bioactivity. A growing interest is the analysis of physiologically active peptides derived from rice bran proteins. In this paper, the bioactivities of rice bran proteins hydrolysates and peptides are reviewed based on recent studies. These enzymatic hydrolysates and peptides exert various biological activities including antioxidant, antidiabetic, anticancer and inhibitory activity for angiotensin converting enzyme (ACE), which may ultimately prevent certain chronic diseases...
September 8, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28885873/bovine-reproductive-palpation-training-does-the-cow-make-a-difference
#16
Hilari M French, John J Dascanio, Gregory E Gilbert, James Q Robinson
Gaining experience and dexterity for trans-rectal cattle palpation requires substantial training. Simulation allows students to perform palpation without risks and to obtain feedback, but many believe live cattle palpation is essential. Limited research exists on the proper training method for live animal trans-rectal palpation. This study compared student improvement in laboratory palpation skills when assigned to the same cows versus choosing a cow at random. The hypothesis for the study was that students assigned the same cow, as compared to students choosing a cow at random, would be more accurate at palpation, would learn what structures are present on the ovaries and what size the reproductive tract measures, and would be able to follow the cyclicity of the cow...
September 8, 2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28885218/off-label-use-of-medicines-the-need-for-good-practice-guidelines
#17
Marc Dooms, James Killick
BACKGROUND: 'Off-label use' is the term used for the prescription and dispensing of a medicinal product for any indication, patient group, route of administration, dosage or treatment regimen other than that listed in the Summary of Product Characteristics. OBJECTIVE: In this article the authors present a brief overview of current practices of off-label use in Europe and the applicable European law and jurisprudence. They then go on to present a set of guidelines for best practice in off-label use which underlines the need for guidance on prescription to be firmly rooted in the need to ensure patient safety above all other concerns...
2017: International Journal of Risk & Safety in Medicine
https://www.readbyqxmd.com/read/28884473/pharmacotherapy-for-smoking-cessation-effects-by-subgroup-defined-by-genetically-informed-biomarkers
#18
REVIEW
Ewoud Schuit, Orestis A Panagiotou, Marcus R Munafò, Derrick A Bennett, Andrew W Bergen, Sean P David
BACKGROUND: Smoking cessation therapies are not effective for all smokers, and researchers are interested in identifying those subgroups of individuals (e.g. based on genotype) who respond best to specific treatments. OBJECTIVES: To assess whether quit rates vary by genetically informed biomarkers within pharmacotherapy treatment arms and as compared with placebo. To assess the effects of pharmacotherapies for smoking cessation in subgroups of smokers defined by genotype for identified genome-wide significant polymorphisms...
September 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28881539/-analysis-of-carotid-atherosclerosis-and-related-risk-factors-in-a-university-physical-examination-population-in-beijing
#19
X F Meng, G M Liu, X L Wang, Q Xu
Objective: To explore the incidence of carotid atherosclerosis in staffs of Tsinghua university according to the different age groups, the possible risk factors and conduct a follow-up survey. Methods: Detailed information about physical examination and carotid ultrasound from 832 staffs of Tsinghua University between 2014 to 2016 were reviewed to observe the occurrence and development of atherosclerosis according to different age groups; the correlation between conventional risk factors and carotid arteriosclerosis was studied by multivariate Logistic regression analysis...
September 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28880924/localization-of-photo-respiration-and-co2-re-assimilation-in-tomato-leaves-investigated-with-a-reaction-diffusion-model
#20
Herman N C Berghuijs, Xinyou Yin, Q Tri Ho, Moges A Retta, Pieter Verboven, Bart M Nicolaï, Paul C Struik
The rate of photosynthesis depends on the CO2 partial pressure near Rubisco, Cc, which is commonly calculated by models using the overall mesophyll resistance. Such models do not explain the difference between the CO2 level in the intercellular air space and Cc mechanistically. This problem can be overcome by reaction-diffusion models for CO2 transport, production and fixation in leaves. However, most reaction-diffusion models are complex and unattractive for procedures that require a large number of runs, like parameter optimisation...
2017: PloS One
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