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https://www.readbyqxmd.com/read/28103260/friendship-network-and-dental-brushing-behavior-among-middle-school-students-an-agent-based-modeling-approach
#1
Maryam Sadeghipour, Mohammad Hossein Khoshnevisan, Afshin Jafari, Seyed Peyman Shariatpanahi
By using a standard questionnaire, the level of dental brushing frequency was assessed among 201 adolescent female middle school students in Tehran. The initial assessment was repeated after 5 months, in order to observe the dynamics in dental health behavior level. Logistic Regression model was used to evaluate the correlation among individuals' dental health behavior in their social network. A significant correlation on dental brushing habits was detected among groups of friends. This correlation was further spread over the network within the 5 months period...
2017: PloS One
https://www.readbyqxmd.com/read/28060865/agent-based-modeling-of-mitochondria-links-sub-cellular-dynamics-to-cellular-homeostasis-and-heterogeneity
#2
Giovanni Dalmasso, Paula Andrea Marin Zapata, Nathan Ryan Brady, Anne Hamacher-Brady
Mitochondria are semi-autonomous organelles that supply energy for cellular biochemistry through oxidative phosphorylation. Within a cell, hundreds of mobile mitochondria undergo fusion and fission events to form a dynamic network. These morphological and mobility dynamics are essential for maintaining mitochondrial functional homeostasis, and alterations both impact and reflect cellular stress states. Mitochondrial homeostasis is further dependent on production (biogenesis) and the removal of damaged mitochondria by selective autophagy (mitophagy)...
2017: PloS One
https://www.readbyqxmd.com/read/28047249/su-f-t-351-establishing-a-workflow-for-imrt-pre-treatment-reviews-for-nrg-gy006-clinical-trial
#3
T Giaddui, N Li, K Curry, K Moore, L Mell, C Leath, C Kunos, Y Xiao
PURPOSE: To establish a workflow for NRG-GY006 IMRT pre-treatment reviews, incorporating advanced radiotherapy technologies being evaluated as part of the clinical trial. METHODS: Pre-Treatment reviews are required for every IMRT case as part of NRG-GY006 (a randomized phase II trial of radiation therapy and cisplatin alone or in combination with intravenous triapine in women with newly diagnosed bulky stage I B2, stage II, IIIB, or IVA cancer of the uterine cervix or stage II-IVA vaginal cancer...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28032590/predicting-the-impact-of-combined-therapies-on-myeloma-cell-growth-using-a-hybrid-multi-scale-agent-based-model
#4
Zhiwei Ji, Jing Su, Dan Wu, Huiming Peng, Weiling Zhao, Brian Nlong Zhao, Xiaobo Zhou
Multiple myeloma is a malignant still incurable plasma cell disorder. This is due to refractory disease relapse, immune impairment, and development of multi-drug resistance. The growth of malignant plasma cells is dependent on the bone marrow (BM) microenvironment and evasion of the host's anti-tumor immune response. Hence, we hypothesized that targeting tumor-stromal cell interaction and endogenous immune system in BM will potentially improve the response of multiple myeloma (MM). Therefore, we proposed a computational simulation of the myeloma development in the complicated microenvironment which includes immune cell components and bone marrow stromal cells and predicted the effects of combined treatment with multi-drugs on myeloma cell growth...
December 9, 2016: Oncotarget
https://www.readbyqxmd.com/read/28027323/a-multi-host-agent-based-model-for-a-zoonotic-vector-borne-disease-a-case-study-on-trypanosomiasis-in-eastern-province-zambia
#5
Simon Alderton, Ewan T Macleod, Neil E Anderson, Kathrin Schaten, Joanna Kuleszo, Martin Simuunza, Susan C Welburn, Peter M Atkinson
BACKGROUND: This paper presents a new agent-based model (ABM) for investigating T. b. rhodesiense human African trypanosomiasis (rHAT) disease dynamics, produced to aid a greater understanding of disease transmission, and essential for development of appropriate mitigation strategies. METHODS: The ABM was developed to model rHAT incidence at a fine spatial scale along a 75 km transect in the Luangwa Valley, Zambia. The method offers a complementary approach to traditional compartmentalised modelling techniques, permitting incorporation of fine scale demographic data such as ethnicity, age and gender into the simulation...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28006991/efficacy-of-autologous-bone-marrow-derived-mesenchymal-stem-cells-and-mononuclear-cells-transplantation-in-type-2-diabetes-mellitus-a-randomized-placebo-controlled-comparative-study
#6
Shobhit Bhansali, Pinaki Dutta, Vinod Kumar, Mukesh Kumar Yadav, Ashish Jain, Sunder Mudaliar, Shipra Bhansali, R R Sharma, Vivekanand Jha, N Marwaha, N Khandelwal, Anand Srinivasan, Naresh Sachdeva, Meredith Hawkins, Anil Bhansali
Drugs targeting β-cells have provided new options in the management of T2DM; however, their role in β-cell regeneration remains elusive. The recent emergence of cell-based therapies like autologous bone marrow-derived mesenchymal stem cells (ABM-MSCs) and mononuclear cells (ABM-MNCs) seems to offer a pragmatic approach to augment β-cell function/mass. This study aims to examine the efficacy and safety of ABM-MSCs and ABM-MNCs transplantation in T2DM and explores the alterations in glucose-insulin homeostasis by metabolic studies...
December 23, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/28004025/callus-cell-shoot-and-stem-proliferation-data-from-pineapple-crown-and-banana-inflorescence-in-vitro-biochemical-and-antioxidant-properties
#7
Abm Sharif Hossain, Musamma M Uddin
The data article contains the experimental data and images on the callus cell, shoot and stem proliferation from pineapple crown slice and banana inflorescence in vitro. Investigated data are related to the research article "Effects of benzylaminopurine and naphthalene acetic acid on proliferation and shoot growth of pineapple (Ananas comosus L. Merr) in vitro" Alsaif et al. (2011) [1] and "Plantlet Production through Development of Competent Multiple Meristem Cultures from Male Inflorescence of Banana, Musa acuminta cv...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28003529/managing-aquatic-parasites-for-reduced-drug-resistance-lessons-from-the-land
#8
Gregor F McEwan, Maya L Groner, Danielle L Burnett, Mark D Fast, Crawford W Revie
Atlantic salmon farming is one of the largest aquaculture industries in the world. A major problem in salmon farms is the sea louse ectoparasite Lepeophtheirus salmonis, which can cause stress, secondary infection and sometimes mortality in the salmon host. Sea lice have substantial impacts on farm economics and potentially nearby wild salmonid populations. The most common method of controlling sea louse infestations is application of chemicals. However, most farming regions worldwide have observed resistance to the small set of treatment chemicals that are available...
December 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28002446/the-agaricus-blazei-based-mushroom-extract-andosan%C3%A2-protects-against-intestinal-tumorigenesis-in-the-a-j-min-mouse
#9
Geir Hetland, Dag M Eide, Jon M Tangen, Mads H Haugen, Mohammad R Mirlashari, Jan E Paulsen
BACKGROUND: The novel A/J Min/+ mouse, which is a model for human Familial Adenomatous Polyposis (FAP), develops spontaneously multiple adenocarcinomas in the colon as well as in the small intestine. Agaricus blazei Murill (AbM) is an edible Basidiomycetes mushroom that has been used in traditional medicine against cancer and other diseases. The mushroom contains immunomodulating β-glucans and is shown to have antitumor effects in murine cancer models. Andosan™ is a water extract based on AbM (82%), but it also contains the medicinal Basidiomycetes mushrooms Hericeum erinaceus and Grifola frondosa...
2016: PloS One
https://www.readbyqxmd.com/read/27998380/the-past-is-prologue-the-future-of-sleep-medicine
#10
Nathaniel F Watson, Ilene M Rosen, Ronald D Chervin
The field of sleep medicine has gone through tremendous growth and development over a short period of time, culminating in recognition of the field as an independent medical subspecialty by the Accreditation Council for Graduate Medical Education (ACGME) and the American Board of Medical Specialties (ABMS). However, the fellowship training requirement that is now mandatory for sleep medicine board certification eligibility has had the unintended consequence of restricting the influx of young physicians to the field...
December 16, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27974578/variability-in-individual-activity-bursts-improves-ant-foraging-success
#11
Daniel Campos, Frederic Bartumeus, Vicenç Méndez, José S Andrade, Xavier Espadaler
Using experimental and computational methods, we study the role of behavioural variability in activity bursts (or temporal activity patterns) for individual and collective regulation of foraging in A. senilis ants. First, foraging experiments were carried out under special conditions (low densities of ants and food and absence of external cues or stimuli) where individual-based strategies are most prevalent. By using marked individuals and recording all foraging trajectories, we were then able to precisely quantify behavioural variability among individuals...
December 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27965914/computational-model-based-analysis-of-strategies-to-enhance-scaffold-vascularization
#12
Elif Seyma Bayrak, Banu Akar, Sami I Somo, Chenlin Lu, Nan Xiao, Eric M Brey, Ali Cinar
Stable and extensive blood vessel networks are required for cell function and survival in engineered tissues. A number of different strategies are currently being investigated to enhance biomaterial vascularization with screening primarily through extensive in vitro and in vivo experiments. In this article, we describe an agent-based model (ABM) developed to evaluate various strategies in silico, including design of optimal biomaterial structure, delivery of angiogenic factors, and application of prevascularized biomaterials...
2016: BioResearch Open Access
https://www.readbyqxmd.com/read/27958775/distinct-molecular-signature-of-murine-fetal-liver-and-adult-hematopoietic-stem-cells-identifies-novel-regulators-of-hematopoietic-stem-cell-function
#13
Javed Karim Manesia, Monica Franch, Daniel Tabas-Madrid, Ruben Nogales-Cadenas, Thomas Vanwelden, Elisa Van Den Bosch, Zhuofei Xu, Alberto Pascual-Montano, Satish Khurana, Catherine Verfaillie
During ontogeny, fetal liver (FL) acts as a major site for hematopoietic stem cell (HSC) maturation and expansion, while HSCs in the adult bone marrow (ABM) are largely quiescent. HSCs in the FL possess faster repopulation capacity as compared with ABM HSCs. However, the molecular mechanism regulating the greater self-renewal potential of FL HSCs has not yet extensively been assessed. Recently, we published RNA-sequencing based gene expression analysis on FL HSCs from 14.5 day mouse embryo (E14.5) in comparison to the ABM HSCs...
December 13, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27931196/attentional-bias-modification-in-depression-through-gaze-contingencies-and-regulatory-control-using-a-new-eye-tracking-intervention-paradigm-study-protocol-for-a-placebo-controlled-trial
#14
Carmelo Vazquez, Ivan Blanco, Alvaro Sanchez, Richard J McNally
BACKGROUND: Attentional biases, namely difficulties both to disengage attention from negative information and to maintain it on positive information, play an important role in the onset and maintenance of the disorder. Recently, researchers have developed specific attentional bias modification (ABM) techniques aimed to modify these maladaptive attentional patterns. However, the application of current ABM procedures has yielded, so far, scarce results in depression due, in part, to some methodological shortcomings...
December 8, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27927860/prediction-of-outcome-from-adult-bacterial-meningitis-in-a-high-hiv-seroprevalence-resource-poor-setting-using-the-malawi-adult-meningitis-score-mams
#15
Emma C Wall, Mavuto Mukaka, Matthew Scarborough, Katherine Ma Ajdukiewicz, Katharine E Cartwright, Mulinda Nyirenda, Brigitte Denis, Theresa J Allain, Brian Faragher, David G Lalloo, Robert S Heyderman
: Acute bacterial meningitis (ABM) in adults residing in resource-poor countries is associated with mortality rates in excess of 50%. To improve outcome, interventional trials and standardised clinical algorithms are urgently required. To optimise these processes we developed and validated an outcome prediction tool to identify ABM patients at greatest risk of death. METHODS: We derived a nomogram using mortality predictors derived from a logistic regression model of a discovery database of adult Malawian ABM patients (n=523, 65% CSF culture positive)...
December 7, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27916841/market-model-for-resource-allocation-in-emerging-sensor-networks-with-reinforcement-learning
#16
Yue Zhang, Bin Song, Ying Zhang, Xiaojiang Du, Mohsen Guizani
Emerging sensor networks (ESNs) are an inevitable trend with the development of the Internet of Things (IoT), and intend to connect almost every intelligent device. Therefore, it is critical to study resource allocation in such an environment, due to the concern of efficiency, especially when resources are limited. By viewing ESNs as multi-agent environments, we model them with an agent-based modelling (ABM) method and deal with resource allocation problems with market models, after describing users' patterns...
November 29, 2016: Sensors
https://www.readbyqxmd.com/read/27908025/geometry-of-behavioral-spaces-a-computational-approach-to-analysis-and-understanding-of-agent-based-models-and-agent-behaviors
#17
Martin Cenek, Spencer K Dahl
Systems with non-linear dynamics frequently exhibit emergent system behavior, which is important to find and specify rigorously to understand the nature of the modeled phenomena. Through this analysis, it is possible to characterize phenomena such as how systems assemble or dissipate and what behaviors lead to specific final system configurations. Agent Based Modeling (ABM) is one of the modeling techniques used to study the interaction dynamics between a system's agents and its environment. Although the methodology of ABM construction is well understood and practiced, there are no computational, statistically rigorous, comprehensive tools to evaluate an ABM's execution...
November 2016: Chaos
https://www.readbyqxmd.com/read/27902653/meningococcal-disease-in-children-in-argentina-a-three-year-active-sentinel-hospital-surveillance-study
#18
Ángela Gentile, Julia Bakir, María Rosa Agosti, Gabriela Ensinck, Hector Abate, Andrea Gajo Gane, Alejandro Santillán Iturres, Adriana Efron, Mabel Regueira, Ricardo Rüttimann
BACKGROUND: Meningococcal disease (MD) is a medical emergency and a serious public health problem. As new meningococcal vaccines become available, MD surveillance is crucial to provide baseline epidemiologic data before implementing preventive measures. We estimated MD incidence and epidemiology in Argentina using hospital-based surveillance. METHODS: 3-year prospective active surveillance in patients ≤15 years of age conducted at 6 pediatric hospital sentinel units (March 2012-February 2015)...
November 28, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27842861/-information-and-consent-forms-for-hematopoietic-stem-cell-transplantation-donors-and-recipients-guidelines-from-the-franchophone-society-of-bone-marrow-transplantation-and-cellular-therapy-sfgm-tc
#19
Bénédicte Bruno, Jean-Baptiste Thibert, Nelly Bancillon, Anna Desbos, Abir Fawaz, Isabelle Fournier, Carole Genty, Dominique Issarni, Sandrine Leveille, Christelle Premel, Alice Polomeni, Myriam Renault, Sylvie Tarillon, Anne Wallart, Ibrahim Yakoub-Agha, Dominique Bordessoule
Within the context of the SFGM-TC's 6th workshop series on the harmonization of clinical practices, our workshop proposes a standardization of the informed consent process for hematopoietic stem cell donors and recipients leading up to an autologous or allogenic transplantation. All informed consent was for bone marrow or peripheral stem cell donors, and mononuclear/lymphocyte donors according to usual procedures. The informed consent for autologous and allogenic related or unrelated adults and pediatric transplantation patients have been included...
November 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27830934/abm-clinical-protocol-10-breastfeeding-the-late-preterm-34-36-6-7-weeks-of-gestation-and-early-term-infants-37-38-6-7-weeks-of-gestation-second-revision-2016
#20
Eyla G Boies, Yvonne E Vaucher
A central goal of the Academy of Breastfeeding Medicine is the development of clinical protocols for managing common medical problems that may impact breastfeeding success. These protocols serve only as guidelines for the care of breastfeeding mothers and infants and do not delineate an exclusive course of treatment or serve as standards of medical care. Variations in treatment may be appropriate according to the needs of an individual patient.
December 2016: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
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