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https://www.readbyqxmd.com/read/29149075/a-game-theoretic-approach-for-balancing-energy-consumption-in-clustered-wireless-sensor-networks
#1
Liu Yang, Yinzhi Lu, Lian Xiong, Yang Tao, Yuanchang Zhong
Clustering is an effective topology control method in wireless sensor networks (WSNs), since it can enhance the network lifetime and scalability. To prolong the network lifetime in clustered WSNs, an efficient cluster head (CH) optimization policy is essential to distribute the energy among sensor nodes. Recently, game theory has been introduced to model clustering. Each sensor node is considered as a rational and selfish player which will play a clustering game with an equilibrium strategy. Then it decides whether to act as the CH according to this strategy for a tradeoff between providing required services and energy conservation...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29148966/exploring-the-health-care-environment-and-associations-with-clinical-outcomes-of-people-living-with-hiv-aids
#2
Mary Hawk, Robert W S Coulter, James E Egan, Mackey Reuel Friedman, Steven Meanley, Stuart Fisk, Courtney Watson, Suzanne Kinsky
Despite three decades of dramatic treatment breakthroughs in antiretroviral regimens, clinical outcomes for people living with HIV vary greatly. The HIV treatment cascade models the stages of care that people living with HIV go through toward the goal of viral suppression and demonstrates that <30% of those living with HIV/AIDS in the United States have met this goal. Although some research has focused on the ways that patient characteristics and patient-provider relationships contribute to clinical adherence and treatment success, few studies to date have examined the ways that contextual factors of care and the healthcare environment contribute to patient outcomes...
November 17, 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/29145821/exposure-to-a-community-wide-campaign-is-associated-with-physical-activity-and-sedentary-behavior-among-hispanic-adults-on-the-texas-mexico-border
#3
Natalia I Heredia, MinJae Lee, Belinda M Reininger
BACKGROUND: Despite evidence for the use of community-wide campaigns to promote physical activity, few evaluations of community-wide campaigns in Hispanic communities exist. This study assessed the associations of exposure to a community-wide campaign with physical activity and sedentary behavior among Hispanic adults living on the Texas-Mexico border. METHODS: The intervention, Tu Salud ¡Si Cuenta! (Your Health Matters!; TSSC), included a newsletter, community health worker discussion, TV and radio segments, which were conducted from 2005 to 2010...
November 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29145321/acupuncture-and-constraint-induced-movement-therapy-for-a-patient-with-chronic-stroke-one-year-follow-up-case-report
#4
Yuanyuan Jin, Xiaoqing Jin, Yidan Chen, Jianfang Zhu
RATIONALE: Spasticity is a widespread problem in chronic stroke. To date, no study has reported the long-term (up to 1 year) outcomes of acupuncture in combination with constraint-induced movement therapy in patients with chronic stroke. This report describes the successful addition of acupuncture on spasticity and arm function in a patient with chronic stroke and arm paresis. PATIENT CONCERNS: At screening, the patient was unable to voluntarily extend her interphalangeal or metacarpophalangeal joints beyond the 10 degrees required for constraint-induced movement therapy...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145119/amine-functionalized-magnetic-bamboo-based-activated-carbon-adsorptive-removal-of-ciprofloxacin-and-norfloxacin-a-batch-and-fixed-bed-column-study
#5
Xiaoming Peng, Fengping Hu, Tao Zhang, Fengxian Qiu, Hongling Dai
Amine-functionalized magnetic bamboo-based activated carbon (AFM-BAC) derived from bamboo products wastes were employed for effective adsorption of fluoroquinolone antibiotics ciprofloxacin (CIP) and norfloxacin (NOR) through batch processing. The effects of factors on the adsorption of both antibiotics were studied. The studies of various factors influencing the adsorption behavior indicated that the maximum adsorption capacities for two antibiotics adsorption were observed in weakly acidic condition and the adsorption amounts of two antibiotics increased with the increase of zwitterionic form, implying the importance of zwitterionic form, and the adsorption process is spontaneous and endothermic...
November 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29144135/parameterization-of-palmitoylated-cysteine-farnesylated-cysteine-geranylgeranylated-cysteine-and-myristoylated-glycine-for-the-martini-force-field
#6
Yoav Atsmon-Raz, D Peter Tieleman
Peripheral membrane proteins go through various post-translational modifications that covalently bind fatty acid tails to specific amino acids. These post translational modifications significantly alter the lipophilicity of the modified proteins and allow them to anchor to biological membranes. Over 1000 different proteins have been identified to date that require such membrane-protein interactions in order to carry out their biological functions, including members of the Src and Ras superfamilies that play key roles in cell signaling and carcinogenesis...
November 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29143411/spontaneous-neural-activity-differences-in-posttraumatic-stress-disorder-a-quantitative-resting-state-meta-analysis-and-fmri-validation
#7
Seth G Disner, Craig A Marquardt, Bryon A Mueller, Philip C Burton, Scott R Sponheim
Identifying the pathophysiology of posttraumatic stress disorder (PTSD) is a critical step toward reducing its debilitating impact. Spontaneous neural activity, measured at rest using various neuroimaging techniques (e.g., regional homogeneity [ReHo], amplitude of low frequency fluctuations [ALFF]), can provide insight about baseline neurobiological factors influencing sensory, cognitive, or behavioral processes associated with PTSD. The present study used activation likelihood estimation (ALE) to conduct the largest-to-date quantitative meta-analysis of spontaneous neural activity in PTSD, including 457 PTSD cases, 292 trauma-exposed controls (TECs), and 293 non-traumatized controls (NTCs) across 22 published studies...
November 15, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29137973/exposure-to-polybrominated-diphenyl-ethers-pbdes-and-child-behavior-current-findings-and-future-directions
#8
REVIEW
Ann M Vuong, Kimberly Yolton, Kim N Dietrich, Joseph M Braun, Bruce P Lanphear, Aimin Chen
Polybrominated diphenyl ethers (PBDEs) are recognized neurotoxicants, but the extent to which PBDEs influence various domains of behavior in children is not fully understood. As such, we reviewed epidemiologic studies published to date to provide an overview of the current state of knowledge on PBDEs' potential role in behavioral development. We identified 19 epidemiologic studies reporting on associations of prenatal and childhood concentrations of PBDEs with behaviors assessed in children from 1 to 12years, including executive function, attention, externalizing and internalizing behaviors, adaptive skills, and social behaviors/Autism Spectrum Disorder (ASD)...
November 11, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/29137231/an-oral-keratinocyte-life-cycle-model-identifies-novel-host-genome-regulation-by-human-papillomavirus-16-relevant-to-hpv-positive-head-and-neck-cancer
#9
Michael R Evans, Claire D James, Oonagh Loughran, Tara J Nulton, Xu Wang, Molly L Bristol, Brad Windle, Iain M Morgan
Many aspects of the HPV life cycle have been characterized in cervical cell lines (W12, CIN612) and in HPV immortalized primary foreskin keratinocytes. There is now an epidemic of HPV positive oropharyngeal cancers (HPV16 is responsible for 80-90% of these); therefore increased understanding of the HPV16 life cycle in oral keratinocytes is a priority. To date there have been limited reports characterizing the HPV16 life cycle in oral keratinocytes. Using TERT immortalized "normal" oral keratinocytes (NOKs) we generated clonal cell lines maintaining the HPV16 genome as an episome, NOKs+HPV16...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29134422/hiv-prevention-among-young-women-in-south-africa-understanding-multiple-layers-of-risk
#10
Christina Psaros, Cecilia Milford, Jennifer A Smit, Letitia Greener, Nzwakie Mosery, Lynn T Matthews, Abigail Harrison, Janna R Gordon, Matthew Mimiaga, David R Bangsberg, Steven A Safren
Despite concerted prevention efforts, young South African women remain at the epicenter of the HIV epidemic. Although these women have grown up in a community powerfully affected by HIV, systematic investigation into how this "second generation" of HIV-affected youth navigates HIV risk is lacking. This study qualitatively explored a complex interplay of factors influencing HIV risk among young pregnant women in KwaZulu-Natal, South Africa. We conducted in-depth interviews with 35 pregnant women (22 HIV-uninfected and 13 HIV-infected) aged 18-21, 18 healthcare providers, and focus groups with 19 community stakeholders...
November 13, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29134145/visual-and-acoustic-components-of-courtship-in-the-bird-of-paradise-genus-astrapia-aves-paradisaeidae
#11
Edwin Scholes, Julia M Gillis, Timothy G Laman
The distinctive and divergent courtship phenotypes of the birds-of-paradise make them an important group for gaining insights into the evolution of sexually selected phenotypic evolution. The genus Astrapia includes five long-tailed species that inhabit New Guinea's montane forests. The visual and acoustic components of courtship among Astrapia species are very poorly known. In this study, we use audiovisual data from a natural history collection of animal behavior to fill gaps in knowledge about the visual and acoustic components of Astrapia courtship...
2017: PeerJ
https://www.readbyqxmd.com/read/29132046/stress-relaxing-hyaluronic-acid-collagen-hydrogels-promote-cell-spreading-fiber-remodeling-and-focal-adhesion-formation-in-3d-cell-culture
#12
Junzhe Lou, Ryan Stowers, Sungmin Nam, Yan Xia, Ovijit Chaudhuri
The physical and architectural cues of the extracellular matrix (ECM) play a critical role in regulating important cellular functions such as spreading, migration, proliferation, and differentiation. Natural ECM is a complex viscoelastic scaffold composed of various distinct components that are often organized into a fibrillar microstructure. Hydrogels are frequently used as synthetic ECMs for 3D cell culture, but are typically elastic, due to covalent crosslinking, and non-fibrillar. Recent work has revealed the importance of stress relaxation in viscoelastic hydrogels in regulating biological processes such as spreading and differentiation, but these studies all utilize synthetic ECM hydrogels that are non-fibrillar...
November 6, 2017: Biomaterials
https://www.readbyqxmd.com/read/29131758/titin-gene-and-protein-functions-in-passive-and-active-muscle
#13
Wolfgang A Linke
The thin and thick filaments of muscle sarcomeres are interconnected by the giant protein titin, which is a scaffolding filament, signaling platform, and provider of passive tension and elasticity in myocytes. This review summarizes recent insight into the mechanisms behind how titin gene mutations cause hereditary cardiomyopathy and how titin protein is mechanically active in skeletal and cardiac myocytes. A main theme is the evolving role of titin as a modulator of contraction. Topics include strain-sensing via titin in the sarcomeric A-band as the basis for length-dependent activation, titin elastic recoil and refolding of titin domains as an energy source, and Ca(2+)-dependent stiffening of titin stretched during eccentric muscle contractions...
November 13, 2017: Annual Review of Physiology
https://www.readbyqxmd.com/read/29131641/qcm-d-investigation-of-swelling-behavior-of-layer-by-layer-thin-films-upon-exposure-to-monovalent-ions
#14
Joshua T O'Neal, Ethan Y Dai, Yanpu Zhang, Kyle B Clark, Kathryn G Wilcox, Ian M George, Nandha E Ramasamy, Daisy Enriquez, Piotr Batys, Maria Sammalkorpi, Jodie L Lutkenhaus
Polyelectrolyte multilayers and layer-by-layer assemblies are susceptible to structural changes in response to ionic environment. By altering the salt type and ionic strength, structural changes can be induced by disruption of intrinsically bound ion pairs within the multilayer network via electrostatic screening. Notably, high salt concentrations have been used for the purposes of salt-annealing and self-healing of LbL assemblies with KBr, in particular, yielding a remarkably rapid response. However, to date, the structural and swelling effects of various monovalent ion species on the behavior of LbL assemblies remain unclear, including a quantitative view of ion content in the LbL assembly and thickness changes over a wide concentration window...
November 13, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29130791/the-sexual-health-of-women-in-lebanon-are-there-differences-by-sexual-orientation
#15
Jessica D Gereige, Li Zhang, Ulrike Boehmer
PURPOSE: From studies conducted in Western countries (United States, United Kingdom, and Australia), we know that the sexual health of sexual minority women (SMW) differs in key ways from that of heterosexual women (HSW). To date, the sexual health of SMW living in the Middle East and North Africa region has not been studied. The purpose of this study was to compare the sexual health of SMW and HSW living in Lebanon. METHODS: SMW and HSW living in Lebanon (N = 95) completed an anonymous, self-administered survey...
November 13, 2017: LGBT Health
https://www.readbyqxmd.com/read/29130474/interventions-for-the-reduction-of-prescribed-opioid-use-in-chronic-non-cancer-pain
#16
REVIEW
Christopher Eccleston, Emma Fisher, Kyla H Thomas, Leslie Hearn, Sheena Derry, Cathy Stannard, Roger Knaggs, R Andrew Moore
BACKGROUND: This is the first update of the original Cochrane Review published in 2013. The conclusions of this review have not changed from the 2013 publication. People with chronic non-cancer pain who are prescribed and are taking opioids can have a history of long-term, high-dose opioid use without effective pain relief. In those without good pain relief, reduction of prescribed opioid dose may be the desired and shared goal of both patient and clinician. Simple, unsupervised reduction of opioid use is clinically challenging, and very difficult to achieve and maintain...
November 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29129215/frailty-screening-and-interventions-considerations-for-clinical-practice
#17
REVIEW
Jeremy Walston, Brian Buta, Qian-Li Xue
Frailty is recognized as a cornerstone of geriatric medicine. It increases the risk of geriatric syndromes and adverse health outcomes in older and vulnerable populations. Although multiple screening instruments have been developed and validated to improve feasibility in clinical practice, frequent lack of agreement between frailty instruments has slowed broad implementation of these tools. Despite this, interventions to improve frailty-related health outcomes developed to date include exercise, nutrition, multicomponent interventions, and individually tailored geriatric care models...
February 2018: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/29129073/stage-dependence-cell-origin-independence-and-prognostic-capacity-of-serum-glycan-fucosylation-%C3%AE-1-4-branching-%C3%AE-1-6-branching-and-%C3%AE-2-6-sialylation-in-cancer
#18
Shadi Ferdosi, Douglas S Rehder, Paul Maranian, Erik P Castle, Thai H Ho, Harvey I Pass, Daniel W Cramer, Karen S Anderson, Lei Fu, David E C Cole, Tao Le, Xifeng Wu, Chad R Borges
Glycans represent a promising but only marginally accessed source of cancer markers. We previously reported the development of a molecularly bottom-up approach to plasma/serum (P/S) glycomics based on glycan linkage analysis that captures features such as α2-6 sialylation, β1-6 branching, and core fucosylation as single analytical signals. Based on the behavior of P/S glycans established to date, we hypothesized that the alteration of P/S glycans observed in cancer would be independent of the tissue in which the tumor originated yet exhibit stage dependence that varied little between cancers classified on the basis of tumor origin...
November 12, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29128787/enhancing-handwashing-frequency-and-technique-of-primary-caregivers-in-harare-zimbabwe-a-cluster-randomized-controlled-trial-using-behavioral-and-microbial-outcomes
#19
Max N D Friedrich, Andreas Kappler, Hans-Joachim Mosler
RATIONALE: Consistent hand hygiene prevents diarrheal and respiratory diseases, but it is often not practiced. The disease burden is highest in low-income settings, which need effective interventions to promote domestic handwashing. To date, most handwashing campaigns have focused on promoting frequent handwashing at key times, whereas specifically promoting handwashing techniques proven to be effective in removing microbes has been confined to healthcare settings. METHODS: We used a cluster-randomized, factorial, controlled trial to test the effects of two handwashing interventions on the behavior of primary caregivers in Harare, Zimbabwe...
November 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/29128649/design-of-a-randomized-controlled-trial-examining-the-efficacy-and-biological-mechanisms-of-web-prolonged-exposure-and-present-centered-therapy-for-ptsd-among-active-duty-military-personnel-and-veterans
#20
Carmen P McLean, Sheila A M Rauch, Edna B Foa, Rebecca K Sripada, Hallie S Tannahill, Jim Mintz, Jeffrey Yarvis, Stacey Young-McCaughan, Katherine A Dondanville, Brittany N Hall-Clark, Brooke A Fina, Terence M Keane, Alan L Peterson
Improved accessibility of effective and efficient evidence-based treatments (EBTs) for military personnel suffering with posttraumatic stress disorder (PTSD) is an urgent need to meet the growing demand for timely care. In addition, a better understanding of the mechanism of action of behavioral therapy can inform the delivery of care to meet accessibility demands. Effective EBTs for PTSD are available, but logistical and stigma-related barriers to accessing behavioral healthcare can deter military personnel from receiving these treatments...
November 8, 2017: Contemporary Clinical Trials
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