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https://www.readbyqxmd.com/read/29342076/neuromorphic-vibrotactile-stimulation-of-fingertips-for-encoding-object-stiffness-in-telepresence-sensory-substitution-and-augmentation-applications
#1
Francesca Sorgini, Luca Massari, Jessica D'Abbraccio, Eduardo Palermo, Arianna Menciassi, Petar B Petrovic, Alberto Mazzoni, Maria Chiara Carrozza, Fiona N Newell, Calogero M Oddo
We present a tactile telepresence system for real-time transmission of information about object stiffness to the human fingertips. Experimental tests were performed across two laboratories (Italy and Ireland). In the Italian laboratory, a mechatronic sensing platform indented different rubber samples. Information about rubber stiffness was converted into on-off events using a neuronal spiking model and sent to a vibrotactile glove in the Irish laboratory. Participants discriminated the variation of the stiffness of stimuli according to a two-alternative forced choice protocol...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29341814/utilizing-a-rat-delayed-implantation-model-to-teach-integrative-endocrinology-and-reproductive-biology
#2
Rodney D Geisert, Michael F Smith, Amanda L Schmelzle, Jonathan A Green
In this teaching laboratory, the students are directed in an exercise that involves designing and performing an experiment to determine estrogen's role in regulating delayed implantation (diapause) in female rats. To encourage active participation by the students, a discussion question is provided before the laboratory exercise in which each student is asked to search the literature and provide written answers to questions and to formulate an experiment to test the role of ovarian estrogen in inducing implantation in female rats...
March 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29341386/at-the-core-of-reasoning-dissociating-deductive-and-non-deductive-load
#3
John P Coetzee, Martin M Monti
In recent years, neuroimaging methods have been used to investigate how the human mind carries out deductive reasoning. According to some, the neural substrate of language is integral to deductive reasoning. According to others, deductive reasoning is supported by a language-independent distributed network including left frontopolar and frontomedial cortices. However, it has been suggested that activity in these frontal regions might instead reflect non-deductive factors such as working memory load and general cognitive difficulty...
January 16, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29341302/twisted-charge-transfer-antennas-for-ultra-bright-terbium-iii-and-dysprosium-iii-bioprobes
#4
Anh Thy Bui, Amandine Roux, Alexei Grichine, Alain Duperray, Chantal Andraud, Olivier Maury
The design of original twisted charge transfer antennas where a non planar geometry is enforced thanks to one or two bulky ortho-Me substituents allows us to prepare the corresponding ultra-bright Tb(III) and Dy(III) bioprobes. The brightness of the Tb(III) derivative compares well with that of the benchmark Tb-Lumi4 complex. The first bio-imaging experiments with a Dy(III) luminescent bioprobe are also reported.
January 17, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29341267/cross-linking-of-thiolated-paclitaxel-oligo-p-phenylene-vinylene-conjugates-aggregates-inside-tumor-cells-leads-to-chemical-locks-that-increase-drug-efficacy
#5
Lingyun Zhou, Fengting Lv, Libing Liu, Guizhi Shen, Xuehai Yan, Guillermo C Bazan, Shu Wang
How to reduce the resistance of certain tumor cells to paclitaxel (PTX) and related taxoid anticancer drugs is a major challenge for improving cure rates. An oligo(p-phenylenevinylene) unit with thiol groups and a PTX unit (OPV-S-PTX), which enhances drug efficacy and reverses resistance is thus designed. The mechanism involves diffusion of OPV-S-PTX into the cell, where π-π interactions lead to aggregation. Cross-linking of the aggregates via oxidation of thiol groups is favored in tumor cells because of the higher reactive oxygen species (ROS) concentration...
January 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29341071/anticholinergic-medication-for-antipsychotic-induced-tardive-dyskinesia
#6
REVIEW
Hanna Bergman, Karla Soares-Weiser
BACKGROUND: Antipsychotic (neuroleptic) medication is used extensively to treat people with serious mental illnesses. However, it is associated with a wide range of adverse effects, including movement disorders. Because of this, many people treated with antipsychotic medication also receive anticholinergic drugs in order to reduce some of the associated movement side-effects. However, there is also a suggestion from animal experiments that the chronic administration of anticholinergics could cause tardive dyskinesia...
January 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29340725/decision-making-in-management-of-the-complex-trauma-patient-changing-the-mindset-of-the-non-trauma-surgeon
#7
Linda Sonesson, Kenneth Boffard, Lars Lundberg, Martin Rydmark, Klas Karlgren
BACKGROUND: European surgeons are frequently subspecialized and trained primarily in elective surgical techniques. As trauma leaders, they may occasionally have to deal with complex polytrauma, advanced management techniques, differing priorities, and the need for multidisciplinary care. There is a lack of expertise, experience, and a low trauma volume, as well as a lack of research, with limited support as to the decision-making and teaching challenges present. We studied what experienced trauma experts describe as the challenges that are specific to the advanced surgical decision-making required, whether civilian, humanitarian, or military...
January 16, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29340625/seen-through-the-patients-eyes-surgical-safety-and-checklists
#8
Jochen Bergs, Frank Lambrechts, Melissa Desmedt, Johan Hellings, Ward Schrooten, Annemie Vlayen, Dominique Vandijck
Objective: We sought to explore the views patients have towards surgical safety and checklists. As a secondary aim, we explored if previous experience of error or other patient characteristics influence these views. Design: A cross-sectional survey study design was applied. Participants: The Flemish Patients' Platform network and social media were used to recruit participants. Main outcome measure(s): An 11-item questionnaire was designed to assess the following constructs: perception of surgical safety, attitudes towards the WHO surgical safety checklist and attitudes regarding checklist usage...
January 11, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29340386/on-chip-functional-neuroimaging-with-mechanical-stimulation-in-caenorhabditis-elegans-larvae-for-studying-development-and-neural-circuits
#9
Yongmin Cho, David N Oakland, Sol Ah Lee, William R Schafer, Hang Lu
Mechanosensation is fundamentally important for the abilities of an organism to experience touch, hear sounds, and maintain balance. Caenorhabditis elegans is a powerful system for studying mechanosensation as this worm is well suited for in vivo functional imaging of neurons. Many years of research using labor-intensive methods have generated a wealth of knowledge about mechanosensation in C. elegans, and the recent microfluidic-based platforms continue to push the boundary for this field. However, developmental aspects of sensory biology, including mechanosensation, are still not fully understood...
January 17, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29340248/depth-and-range-dependent-variation-in-the-performance-of-aquatic-telemetry-systems-understanding-and-predicting-the-susceptibility-of-acoustic-tag-receiver-pairs-to-close-proximity-detection-interference
#10
Stephen R Scherrer, Brendan P Rideout, Giacomo Giorli, Eva-Marie Nosal, Kevin C Weng
Background: Passive acoustic telemetry using coded transmitter tags and stationary receivers is a popular method for tracking movements of aquatic animals. Understanding the performance of these systems is important in array design and in analysis. Close proximity detection interference (CPDI) is a condition where receivers fail to reliably detect tag transmissions. CPDI generally occurs when the tag and receiver are near one another in acoustically reverberant settings. Here we confirm transmission multipaths reflected off the environment arriving at a receiver with sufficient delay relative to the direct signal cause CPDI...
2018: PeerJ
https://www.readbyqxmd.com/read/29340084/crispr-cas9-hdr-system-enhances-aqp1-gene-expression
#11
Zhimin Wang, Yaohe Wang, Songling Wang, Li-Rong Zhang, Na Zhang, Zhenguo Cheng, Qingshi Liu, Kelly J Shields, Baoli Hu, Michael J Passineau
Ionizing radiation (IR) isthe primarytherapeutic tool to treat patients with cancerous lesions located in the head and neck. In many patients, IR results in irreversible and severe salivary gland dysfunction or xerostomia. Currently there are no effective treatment options to reduce the effects of xerostomia. More recently, salivary gland gene therapy utilizing the water-specific protein aquaporin 1 (AQP1) has been of great interest to potentially correct salivary dysfunction. In this study, we used CRISPR-Cas9 gene editing along with the endogenous promoter of AQP1 within theHEK293 and MDCK cell lines...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339935/dietetic-interns-perceptions-and-use-of-evidence-based-practice-an-exploratory-study
#12
Rachel J Hinrichs
Objective: This study explored dietetic interns' perceptions and knowledge of evidence-based practice (EBP), their use and observation of EBP principles during their clinical rotations, and their intentions to use EBP in their careers. Methods: A mixed methods design combining a survey and focus group was employed. Dietetic interns (n=16) from a large Midwestern university were recruited in person and via email to participate in the survey, focus group, or both...
January 2018: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/29339927/factors-affecting-the-cultural-competence-of-visiting-nurses-for-rural-multicultural-family-support-in-south-korea
#13
Min Hyun Suk, Won-Oak Oh, YeoJin Im
Background: With the recent growth of multicultural families in the Korean society, the importance of the role of qualified visiting nurses in the delivery of culturally sensitive health care has grown dramatically. As the primary health care provider for multicultural families enrolled in public community-based health care centers, the cultural competence of visiting nurses is an essential qualification for the provision of quality health care for multicultural families, especially in rural areas...
2018: BMC Nursing
https://www.readbyqxmd.com/read/29339792/assemble-and-match-a-novel-hybrid-tool-for-enhancing-education-and-research-in-rational-structure-based-drug-design
#14
Pouya Tavousi, Reza Amin, Sina Shahbazmohamadi
Rational drug design is the process of finding new medication that can activate or inhibit the biofunction of a target molecule by binding to it and forming a molecular complex. Here, shape and charge complementarities between drug and target are key. To help find effective drug molecules out of a huge pool of possibilities, physical and computer aided tools have been developed. Former offers a tangible experience of the molecular interactions yet lacks measurement and evaluation capabilities. Latter enables accurate and fast evaluations, but does not deliver the interactive tangible experience of physical models...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339228/stability-and-plasmatic-protein-binding-of-novel-zidovudine-prodrugs-targeting-site-ii-of-human-serum-albumin
#15
Esteban M Schenfeld, Sergio R Ribone, Mario A Quevedo
Despite its vastly demonstrated clinical efficacy, zidovudine (AZT) exhibits several suboptimal pharmacokinetic properties. In particular, its short plasmatic half-life (t1/2 ~ 1 h) is related to its low bound fraction to whole plasmatic proteins and in particular to human serum albumin (HSA). The design of prodrugs constitutes a promising strategy to enhance AZT pharmacokinetic properties, including its affinity for HSA. Recently, we reported the synthesis and chemical stability evaluation of three novel prodrugs of AZT obtained by derivatization with dicarboxylic acids (1-3)...
January 12, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29339136/development-of-orally-applicable-combinatorial-drug-loaded-nanoparticles-for-the-treatment-of-fibrosarcoma
#16
Gulen Melike Demirbolat, Levent Altintas, Sukran Yilmaz, Ismail Tuncer Degim
Nanoparticulate systems have been receiving a significant attention especially for the treatment of cancer but one of the main hurdles is to produce these developed and high tech nanosystems in large quantities. Anticancer drug formulations are generally designed for parenteral administrations but oral administration is still the most convenient route. In this study, orally applicable nano-sized chitosan nanoparticles (NPs) were successfully prepared using Nano Spray Dryer. It is possible to produce these NPs in large quantities by simply increasing the processing time using the machine without changing any parameter...
January 12, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29338989/relations-between-self-reported-and-linguistic-monitoring-assessments-of-affective-experience-in-an-extreme-environment
#17
Nathan Smith
INTRODUCTION: Approaches for monitoring psychosocial health in challenging environments are needed to maintain the performance and safety of personnel. The purpose of the present research was to examine the relationship between 2 candidate methods (self-reported and linguistics) for monitoring affective experience during extreme environment activities. METHODS: A single-subject repeated-measures design was used in the present work. The participant was a 46-year-old individual scheduled to complete a self-supported ski expedition across Arctic Greenland...
January 12, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29338904/pain-and-its-impact-on-the-functional-ability-in-children-treated-at-the-children-s-cancer-center-of-lebanon
#18
Dina Madi, Michael Clinton
PURPOSE: The purpose of this study was to describe the characteristics of pain in children under treatment at the Children Cancer Centre of Lebanon at the American University of Beirut Medical Centre. Design and Methods A cross-sectional correlational survey was used. The Adolescent Pediatric Pain Tool and the Functional Disability Inventory were used to examine the characteristics of pain experienced in a consecutive sample of children treated at the CCCL and its impact on their functional abilities...
January 12, 2018: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29338751/evaluation-of-the-effects-of-a-designated-program-on-illegal-drug-cessation-among-adolescents-who-experiment-with-drugs
#19
Chiu-Ching Chang, Jung-Yu Liao, Chiu-Mieh Huang, Hsiao-Pei Hsu, Chih-Che Chen, Jong-Long Guo
BACKGROUND: Studies indicate that adolescent-onset drug users experience a greater likelihood of dependence that continues into adulthood. The importance of early intervention was evident in treating adolescents before their substance use progressed. We examined the effectiveness of an intervention program that prevents students who experiment with drugs from reusing them. METHODS: The study was based on 10 out of 18 invited schools that were randomly assigned to either the intervention group (5 schools, n = 43) or the comparison group (5 schools, n = 41)...
January 16, 2018: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/29338685/functional-health-state-description-and-valuation-by-people-aged-65-and-over-a-pilot-study
#20
Riaan Botes, Karin M Vermeulen, Adelita V Ranchor, Erik Buskens
BACKGROUND: Assessing quality of life among the elderly is a complex and multifaceted issue. Elderly people might find valuing and describing their personal experience of quality of life (QoL) demanding and cumbersome. This study therefore sought to determine the feasibility of administering two questionnaires in two samples of elderly people. METHODS: A preference-based instrument (EQ-5D + C) and a currently achieved functioning questionnaire (CAF) were utilized...
January 16, 2018: BMC Geriatrics
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