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https://www.readbyqxmd.com/read/27915430/protection-zone-in-a-diffusive-predator-prey-model-with-beddington-deangelis-functional-response
#1
Xiao He, Sining Zheng
In any reaction-diffusion system of predator-prey models, the population densities of species are determined by the interactions between them, together with the influences from the spatial environments surrounding them. Generally, the prey species would die out when their birth rate is too low, the habitat size is too small, the predator grows too fast, or the predation pressure is too high. To save the endangered prey species, some human interference is useful, such as creating a protection zone where the prey could cross the boundary freely but the predator is prohibited from entering...
December 3, 2016: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/27915312/role-of-retinopathy-of-prematurity-rop-tertiary-centers-of-excellence-in-capacity-building
#2
Padmaja Kumari Rani, D Balakrishnanan, T R Padhi, Subhadra Jalali
Tertiary Centres of Excellence in India have been at the forefront of the efforts against Retinopathy of Prematurity (ROP) - associated blindness. The epidemic of blindness from ROP; however, has now spread rapidly into large parts of interiors of developing countries due to improved newborn care facilities. Due to their knowledge and experience of more than a decade, these centres of excellence, both from child care and Ophthalmology care, now need to come forward in substantial measures and need to be supported by funds and programs so that concerns of neonatal eye-health, training, screening, prevention and treatment can get integrated and embedded into newborn critical care and health programs...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915188/combined-cluster-and-discriminant-analysis-an-efficient-chemometric-approach-in-diesel-fuel-characterization
#3
Márton Novák, Dóra Palya, Zsolt Bodai, Zoltán Nyiri, Norbert Magyar, József Kovács, Zsuzsanna Eke
Combined cluster and discriminant analysis (CCDA) as a chemometric tool in compound specific isotope analysis of diesel fuels was studied. The stable carbon isotope ratios (δ(13)C) of n-alkanes in diesel fuel can be used to characterize or differentiate diesels originating from different sources. We investigated 25 diesel fuel samples representing 20 different brands. The samples were collected from 25 different service stations in 11 European countries over a 2 year period. The n-alkane fraction of diesel fuels was separated using solid-state urea clathrate formation combined with silica gel fractionation...
November 23, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27915056/human-to-human-transmission-of-arthropod-borne-pathogens
#4
REVIEW
Byron E Martina, Luisa Barzon, Gorben P Pijlman, José de la Fuente, Annapaola Rizzoli, Linda J Wammes, Willem Takken, Ronald P van Rij, Anna Papa
Human-to-human (H2H) transmitted arthropod-borne pathogens are a growing burden worldwide, with malaria and dengue being the most common mosquito-borne H2H transmitted diseases. The ability of vectors to get infected by humans during a blood meal to further propel an epidemic depends on complex interactions between pathogens, vectors and humans, in which human interventions and demographic and environmental conditions play a significant role. Herein, we discuss the distal and proximal drivers affecting H2H vector-borne pathogen transmission and identify knowledge gaps and future perspectives...
December 1, 2016: Current Opinion in Virology
https://www.readbyqxmd.com/read/27914855/time-to-get-serious-with-hiv-1-resistance-in-sub-saharan-africa
#5
Josep M Llibre
No abstract text is available yet for this article.
November 30, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/27914505/temporal-trends-and-factors-associated-with-diabetes-mellitus-among-patients-hospitalized-with-heart-failure-findings-from-get-with-the-guidelines-heart-failure-registry
#6
Justin B Echouffo-Tcheugui, Haolin Xu, Adam D DeVore, Phillip J Schulte, Javed Butler, Clyde W Yancy, Deepak L Bhatt, Adrian F Hernandez, Paul A Heidenreich, Gregg C Fonarow
BACKGROUND: The contribution of diabetes to the burden of heart failure (HF) remains largely undescribed. Assessing diabetes temporal trends among US patients hospitalized with HF and their relation with quality measures in real-world practice can help to define this burden. METHODS: Using data from the Get With the Guidelines-Heart Failure registry, we assessed temporal trends in diabetes prevalence among patients with HF and in subgroups with reduced ejection fraction (HFrEF; EF < 40%), borderline EF (HFbEF; 40%≤EF <50%), or preserved EF (HFpEF; EF ≥ 50%), hospitalized between 2005 and 2015...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27914497/acute-management-of-stroke-patients-taking-non-vitamin-k-antagonist-oral-anticoagulants-addressing-real-world-anticoagulant-management-issues-in-stroke-aramis-registry-design-and-rationale
#7
Ying Xian, Adrian F Hernandez, Tina Harding, Gregg C Fonarow, Deepak L Bhatt, Robert E Suter, Yosef Khan, Lee H Schwamm, Eric D Peterson
BACKGROUND: Non-vitamin K antagonist oral anticoagulants (NOACs, dabigatran, rivaroxaban, apixaban, and edoxaban) have been increasingly used as alternatives to warfarin for stroke prophylaxis in patients with atrial fibrillation. Yet there is substantial lack of information on how patients on NOACs are currently treated when they have an acute ischemic stroke and the best strategies for treating intracerebral hemorrhage for those on chronic anticoagulation with warfarin or a NOAC. These are critical unmet needs for real world clinical decision making in these emergent patients...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27914332/amyloid-graphene-oxide-as-immobilization-platform-of-au-nanocatalysts-and-enzymes-for-improved-glucose-sensing-activity
#8
Xiaochen Wu, Mingjie Li, Zehui Li, Lili Lv, Yan Zhang, Chaoxu Li
Two-dimensional GO nanosheets and one-dimensional lysozyme nanofibrils were hybridized through electrostatic interaction to get a novel amyloid-GO composite, which promised a biocompatible immobilization platform for Au nanocatalysts as well as enzymes. The immobilization platform could load a large and tunable amount of Au NPs while maintaining their high catalytic activity. The immobilized catalysts showed high electrochemical behaviors, being ideal as glucose sensing systems. Furthermore, enzymes could also be immobilized on the residual bare surfaces of amyloid-GO, and served by a colorimetric method for a sensitive and selective analytical glucose-detecting platform...
November 16, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27914326/molecular-interactions-in-high-conductive-gel-electrolytes-based-on-low-molecular-weight-gelator
#9
Michał Bielejewski, Andrzej Łapiński, Oleg Demchuk
Organic ionic gel (OIG) electrolytes, also known as gel electrolytes or ionogels are one example of modern functional materials with the potential to use in wide range of electrochemical applications. The functionality of OIGs arises from the thermally reversible solidification of electrolytes or ionic liquids and their superior ionic conductivity. To understand and to predict the properties of these systems it is important to get the knowledge about the interactions on molecular level between the solid gelator matrix and the electrolyte solution...
November 16, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27913773/pediatric-nutrition-assessment-anthropometrics-to-zinc
#10
Kelly Green Corkins, Erin E Teague
Pediatric patients with chronic illnesses or diseases or who require long-term nutrition support are most vulnerable to nutrition-related issues. Malnutrition in a pediatric patient may negatively affect long-term growth and development. Children also become malnourished much more quickly than adults. A comprehensive nutrition assessment that includes food and nutrition-related history, anthropometric measurements, biochemical data, medical tests and procedures, nutrition-focused physical findings, and patient history should be completed on these patients as no one parameter is a comprehensive indicator of nutrition status...
December 2, 2016: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/27913594/highlights-in-bioethics-through-40%C3%A2-years-a-quantitative-analysis-of-top-cited-journal-articles
#11
Pingyue Jin, Mark Hakkarinen
BACKGROUND: The field of bioethics is constantly evolving. To investigate trends in the field of bioethics, we conducted a quantitative analysis of the top-cited articles in bioethical journals over the past 40 years. METHODS: Retrospective quantitative study of the 20 most cited bioethics articles published each year from 1975 to 2014 were conducted. Article samples were selected from a list of the most relevant 100 journals in the field of bioethics. RESULTS: In total, 800 top-cited articles between 1975 and 2014 in the domain of bioethics were retrieved and analysed...
December 2, 2016: Journal of Medical Ethics
https://www.readbyqxmd.com/read/27913364/an-intelligible-risk-stratification-model-based-on-pairwise-and-size-constrained-kmeans
#12
Longfei Han, Senlin Luo, Huaiqing Wang, Limin Pan, Xincheng Ma, Tiemei Zhang
Having a system to stratify individuals according to risk is key to clinical disease prevention, this allows individuals identified at different risk tiers benefit from further investigation and intervention. But the same risk score estimated for two different persons doesn't mean they need the same further investigation or represent the similarity health condition between two persons. Meanwhile, users still does not know a prior what most of the risk tiers are, and how many tiers should be found in risk stratification...
November 29, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/27913354/a-novel-elastic-force-field-to-influence-mediolateral-foot-placement-during-walking
#13
Elizabeth Nyberg, Jordan Broadway, Christian Finetto, Jesse Dean
Bipedal gait can be stabilized through mechanically-appropriate mediolateral foot placement, although this strategy is disrupted in a subset of neurologically injured individuals with balance deficits. The goal of the present work was to develop a device to influence mediolateral foot placement during treadmill walking. We created a novel force-field using a combination of passive elasticity and active control; wires in series with extension springs run parallel to the treadmill belts and can be rapidly repositioned to exert mediolateral forces on the legs of users...
December 1, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/27913184/tolerance-of-hyperammonemia-in-brain-of-heteropneustes-fossilis-is-supported-by-glutamate-glutamine-cycle
#14
Suman Mishra, Rajnikant Mishra
This report presents analysis of molecular switches associated with tolerance to hyperammonemia in Heteropneustes fossilis because it tolerates about 100-fold more ammonia than mammals. Brains of Heteropneustes fossilis exposed to 100mM ammonium chloride were dissected after Zero hour as control, 16hrs and 20hrs exposure. The status of neuron and glia were analysed by Golgi staining, Luxol Fast Blue, and Nissl's staining. The expression patterns of genes associated to homeostasis of neuron and glia, management of oxidative stress and inflammation, ammonia metabolism and brain derived neurotrophic factor were analysed through reverse-transcriptase-polymerase chain reaction...
November 29, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27912946/addressing-holistic-healthcare-needs-of-oncology-patients-implementation-and-evaluation-of-a-complementary-and-alternative-medicine-cam-course-within-an-elective-module-designed-for-healthcare-professionals
#15
Nadja Klafke, Angelika Homberg, Katharina Glassen, Cornelia Mahler
BACKGROUND: Patients, and especially oncology patients, increasingly demand information and application of complementary therapies to supplement their conventional medical treatment and follow-up care. Due to the widespread interest in holistic treatment opportunities in oncology populations, healthcare professionals need to be prepared in differentiating evidence-based methods of the complementary and alternative medicine (CAM) spectrum and how to consult with patients about it. OBJECTIVE: This paper reports on the implementation and evaluation of a newly designed module "Complementary and Alternative Medicine in oncological healthcare" in the bachelor degree program Interprofessional Health Care (B...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912928/translating-self-persuasion-into-an-adolescent-hpv-vaccine-promotion-intervention-for-parents-attending-safety-net-clinics
#16
Austin S Baldwin, Deanna C Denman, Margarita Sala, Emily G Marks, L Aubree Shay, Sobha Fuller, Donna Persaud, Simon Craddock Lee, Celette Sugg Skinner, Deborah J Wiebe, Jasmin A Tiro
OBJECTIVE: Self-persuasion is an effective behavior change strategy, but has not been translated for low-income, less educated, uninsured populations attending safety-net clinics or to promote human papillomavirus (HPV) vaccination. We developed a tablet-based application (in English and Spanish) to elicit parental self-persuasion for adolescent HPV vaccination and evaluated its feasibility in a safety-net population. METHODS: Parents (N=45) of age-eligible adolescents used the self-persuasion application...
November 20, 2016: Patient Education and Counseling
https://www.readbyqxmd.com/read/27912790/fetal-malformation-in-maternal-toxoplasma-and-rubella-co-infection-in-cameroon-a-case-report
#17
Andreas Ateke Njoh, Sarah Namondo Njoh, Messang Blandine Abizou
BACKGROUND: There has been a recent increase in the number of newborns with brain malformations due to congenital infections, but the impact of these diseases remains largely under ascertained in middle-income and low-income countries. This case report presents a fetal anencephaly following maternal toxoplasma and rubella co-infection in a resource-limited setting and the challenges faced by the patient and the health care provider in the management of the condition. CASE PRESENTATION: A 25-year-old black Cameroonian woman of Bakossi origin, gravida3 para1010, presented with a positive rubella and toxoplasma immunoglobulin G serologic test at 21 weeks of pregnancy; she could not benefit from a fetal morphologic ultrasound partly because there was none at the site of her antenatal clinic and because there were accessibility constraints getting to the nearest referral hospital approximately 100 km away...
December 3, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27912766/non-random-distribution-of-child-undernutrition-in-ethiopia-spatial-analysis-from-the-2011-ethiopia-demographic-and-health-survey
#18
Zewdie Aderaw Alemu, Ahmed Ali Ahmed, Alemayehu Worku Yalew, Belay Simanie Birhanu
BACKGROUND: Child undernutrition showed geographical inequalities due to variations in contextual determinants from area to area which indicates that location is an important factor in child undernutrition. However, there are limited studies on spatial epidemiology of child undernutrition in Ethiopia. This study was aimed to identify the SaTScan spatial clusters of child undernutrition in Ethiopia. METHODS: Nutritional indices of children (0-59 months) with Global Positioning System (GPS) location data were accessed from the 2011 Ethiopia Demographic and Health Survey (EDHS) after getting permission from the MEASURES Demographic and Health Survey (DHS) Program...
December 3, 2016: International Journal for Equity in Health
https://www.readbyqxmd.com/read/27912095/the-ras-mapk-axis-gets-stressed-out
#19
Scott A Foster, Shiva Malek
In this issue of Molecular Cell, Ritt et al. (2016) describe a stress-induced checkpoint that effectively suppresses RAS-MAPK signaling. This pathway, activated by agents such as Rigosertib that induce mitotic and oxidative stress, results in JNK-mediated inhibition of RAS-MAPK pathway components SOS and RAF.
December 1, 2016: Molecular Cell
https://www.readbyqxmd.com/read/27911892/authorization-of-animal-experiments-is-based-on-confidence-rather-than-evidence-of-scientific-rigor
#20
Lucile Vogt, Thomas S Reichlin, Christina Nathues, Hanno Würbel
Accumulating evidence indicates high risk of bias in preclinical animal research, questioning the scientific validity and reproducibility of published research findings. Systematic reviews found low rates of reporting of measures against risks of bias in the published literature (e.g., randomization, blinding, sample size calculation) and a correlation between low reporting rates and inflated treatment effects. That most animal research undergoes peer review or ethical review would offer the possibility to detect risks of bias at an earlier stage, before the research has been conducted...
December 2016: PLoS Biology
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