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https://www.readbyqxmd.com/read/28528525/urban-youth-knowledge-and-attitudes-regarding-lead-poisoning
#1
Sandra Bogar, Aniko Szabo, Shane Woodruff, Sheri Johnson
Environmental health literacy (EHL) is a promising and evolving field of research that could benefit from youth engagement. Yet studies focused on youths' environmental health awareness and concerns are limited. For example, although lead exposure remains a threat to youth development in urban environments, no published studies have measured urban youth's knowledge of lead poisoning. A CBPR partnership established a youth advisory council (YAC) who helped to design, interpret and disseminate a mixed methods study exploring environmental health perceptions among urban youths ages 10-18...
May 20, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28528360/a-spiking-neural-network-model-of-the-midbrain-superior-colliculus-that-generates-saccadic-motor-commands
#2
Bahadir Kasap, A John van Opstal
Single-unit recordings suggest that the midbrain superior colliculus (SC) acts as an optimal controller for saccadic gaze shifts. The SC is proposed to be the site within the visuomotor system where the nonlinear spatial-to-temporal transformation is carried out: the population encodes the intended saccade vector by its location in the motor map (spatial), and its trajectory and velocity by the distribution of firing rates (temporal). The neurons' burst profiles vary systematically with their anatomical positions and intended saccade vectors, to account for the nonlinear main-sequence kinematics of saccades...
May 20, 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/28528284/biomarkers-in-epilepsy-a-modelling-perspective
#3
Sven C van Dijkman, Rob A Voskuyl, Elizabeth C de Lange
Biomarkers can be categorised from type 0 (genotype or phenotype), through 6 (clinical scales), each level representing a part of the processes involved in the biological system and drug treatment. This classification facilitates the identification and connection of information required to fully (mathematically) model a disease and its treatment using integrated information from biomarkers. Two recent reviews thoroughly discussed the current status and development of biomarkers for epilepsy, but a path towards the integration of such biomarkers for the personalisation of anti-epileptic drug treatment is lacking...
May 17, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28528203/changes-in-resting-state-functional-brain-connectivity-and-withdrawal-symptoms-are-associated-with-acute-electronic-cigarette-use
#4
Andréa L Hobkirk, Travis T Nichols, Jonathan Foulds, Jessica M Yingst, Susan Veldheer, Shari Hrabovsky, John Richie, Thomas Eissenberg, Stephen J Wilson
Resting state functional brain connectivity (rsFC) may be an important neuromarker of smoking behavior. Prior research has shown, among cigarette smokers, that nicotine administration alters rsFC within frontal and parietal cortices involved in executive control, as well as striatal regions that drive reward processing. These changes in rsFC have been associated with reductions in withdrawal symptom severity. We currently have a limited understanding of how rsFC is affected by the use of electronic cigarettes (ecigs), an increasingly popular class of products, the members of which deliver nicotine with varying effectiveness...
May 17, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28528175/heterodimeric-v-nikolskii-phospholipases-a2-induce-aggregation-of-the-lipid-bilayer
#5
A S Alekseeva, D S Tretiakova, V P Chernikov, Yu N Utkin, Yu G Molotkovskii, E L Vodovozova, I A Boldyrev
We report that the action of the heterodimeric phospholipases A2 (PLA2s) from Vipera nikolskii, which comprises enzymatically active basic subunit and inactive acidic PLA2 homologue, on the lipid bilayer results in the aggregation and stacking of bilayers. These processes are demonstrated using two independent methods (fluorescence spectroscopy and electron microscopy). Aggregation of bilayers is possible because both subunits of the V. nikolskii heterodimer contain a membrane-binding site (also known as IBS)...
May 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28528137/fuzzy-dynamic-output-feedback-h%C3%A2-control-for-continuous-time-t-s-fuzzy-systems-under-imperfect-premise-matching
#6
Tao Zhao, Songyi Dian
This paper addresses a fuzzy dynamic output feedback H∞ control design problem for continuous-time nonlinear systems via T-S fuzzy model. The stability of the fuzzy closed-loop system which is formed by a T-S fuzzy model and a fuProd. Type: FTPzzy dynamic output feedback H∞ controller connected in a closed loop is investigated with Lyapunov stability theory. The proposed fuzzy controller does not share the same membership functions and number of rules with T-S fuzzy systems, which can enhance design flexibility...
May 17, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28528069/primary-coiling-of-the-left-ventricle-in-hypoplastic-left-heart-with-ventriculo-coronary-connections
#7
Johanna Hummel, Brigitte Stiller, Johannes Kroll, Jochen Grohmann
No abstract text is available yet for this article.
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528063/an-involuntary-and-unexpected-treatment-of-nutcracker-esophagus
#8
Diane Mege, Alban Benezech, Henri de Lesquen, Véronique Vitton, Pascal-Alexandre Thomas
A 76-year-old woman complained of painful dysphagia and loss of weight. Esophagoscopy results were negative, whereas computed tomography (CT) disclosed a 25-mm mediastinal tumor without a connection to the esophagus. A diagnosis of nutcracker esophagus was made on high-resolution esophageal manometry. Peroral endoscopic esophageal myotomy failed to improve the symptoms. Right video thoracoscopy allowed resection of the tumor, which looked like a neurogenic tumor of the posterior mediastinum that developed from the right vagus nerve...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528021/multicystic-peritoneal-mesothelioma-a-short-review
#9
Chi-Hao Zhang, Ji-Wei Yu, Meng Luo
Multicystic peritoneal mesothelioma (MCPM) is a rare neoplasm, predominantly affecting female patients during their reproductive years. The lesion is usually distributed diffusely in the abdomen and pelvis, but the peritoneum of the pelvic organs is the most common site. MCPM is composed of fluid-filled translucent cysts, connected by varying amounts of fibrous tissue, and lined by a layer of mesothelial cells. Because of the rarity of this disease, the pathogenesis and natural history of MCPM remain poorly understood and continuously debated...
March 31, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28527820/adventitial-cystic-disease-of-radial-artery-apropos-of-a-case-and-review-of-literature
#10
Álvaro Torres-Blanco, Luis Ariel Pepén-Moquete, Vicente Molina-Nácher, Francisco Gómez-Palonés
Adventitial cystic disease is an uncommon condition that is characterized by the collection of mucinous material that accumulates in the adventitial layer of the artery. Predominantly, this entity affects the popliteal artery, whereas it is extremely rare in the radial artery. We report a 72-year-old female patient that underwent surgical treatment of an adventitial cyst of the right radial artery. The involved arterial segment was resected, and reconstruction by means of the interposition of a saphenous vein graft was performed...
May 11, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28527787/neural-correlates-of-believing
#11
Xiaochun Han, Ting Zhang, Shiyu Wang, Shihui Han
Beliefs provide a fundamental cognitive basis for human behavior. But how the brain believes remains a mystery. We investigated the neural underpinnings of believing by scanning healthy adults using functional magnetic resonance imaging when they made yes/no responses to the questions whether they believe or think that a trait adjective describes themselves or a celebrity. We found that, relative to thinking, believing was characterized with better memory of self-related adjectives. Moreover, believing (vs...
May 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28527712/insulin-fibrillation-the-influence-and-coordination-of-zn-2
#12
Christian Grundahl Frankær, Pernille Sønderby, Maria Blanner Bang, Ramona Valentina Mateiu, Minna Groenning, Jens Bukrinski, Pernille Harris
Protein amyloid fibrillation is obtaining much focus because it is connected with amyloid-related human diseases such as Alzheimer's disease, diabetes mellitus type 2, or Parkinson's disease. The influence of metal ions on the fibrillation process and whether it is implemented in the amyloid fibrils has been debated for some years. We have therefore investigated the influence and binding geometry of zinc in fibrillated insulin using extended X-ray absorption fine-structure and X-ray absorption near-edge structure spectroscopy...
May 17, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28527571/progesterone-receptor-signaling-in-uterine-myometrial-physiology-and-preterm-birth
#13
San-Pin Wu, Francesco J DeMayo
Myometrium holds the structural integrity for the uterus and generates force for parturition with its primary component, the smooth muscle cells. The progesterone receptor mediates progesterone-dependent signaling and connects to a network of pathways for regulation of contractility and inflammatory responses in myometrium. Dysfunctional progesterone signaling has been linked to pregnancy complications including preterm birth. In the present review, we summarize recent findings on modifiers and effectors of the progesterone receptor signaling...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28527508/social-media-and-web-presence-for-patients-and-professionals-evolving-trends-and-implications-for-practice
#14
REVIEW
Jose E Barreto, Curtis L Whitehair
The use of social media has become very instinctive to many. It has become part of a daily routine. Enhanced communication, liberated expressions of self, becoming updated with all the trends and news, and marketing promotion are only some of the reasons why most people use social media. Health care providers including physicians should take advantage of these platforms for professional purposes. Social media extends far beyond the famous platforms such as Facebook, Twitter, Pinterest, and Instagram, used mostly for social connections...
May 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28527457/role-of-quantum-coherence-in-shaping-the-line-shape-of-an-exciton-interacting-with-a-spatially-and-temporally-correlated-bath
#15
Rajesh Dutta, Kaushik Bagchi, Biman Bagchi
Kubo's fluctuation theory of line shape forms the backbone of our understanding of optical and vibrational line shapes, through such concepts as static heterogeneity and motional narrowing. However, the theory does not properly address the effects of quantum coherences on optical line shape, especially in extended systems where a large number of eigenstates are present. In this work, we study the line shape of an exciton in a one-dimensional lattice consisting of regularly placed and equally separated optical two level systems...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527456/core-valence-stockholder-aim-analysis-and-its-connection-to-nonadiabatic-effects-in-small-molecules
#16
Paulo H R Amaral, José R Mohallem
A previous theory of separation of motions of core and valence fractions of electrons in a molecule [J. R. Mohallem et al., Chem. Phys. Lett. 501, 575 (2011)] is invoked as basis for the useful concept of Atoms-in-Molecules (AIM) in the stockholder scheme. The output is a new tool for the analysis of the chemical bond that identifies core and valence electron density fractions (core-valence stockholder AIM (CVSAIM)). One-electron effective potentials for each atom are developed, which allow the identification of the parts of the AIM which move along with the nuclei (cores)...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527432/dealing-with-the-exponential-wall-in-electronic-structure-calculations
#17
Peter Fulde, Hermann Stoll
An alternative to the density functional theory is the use of wavefunction based electronic structure calculations for solids. In order to perform them, the Exponential Wall (EW) problem has to be resolved. It is caused by an exponential increase of the number of configurations with increasing electron number N. There are different routes one may follow. One is to characterize a many-electron wavefunction by a vector in Liouville space with a cumulant metric rather than in Hilbert space. This removes the EW problem...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527393/a-combination-of-platelet-features-allows-detection-of-early-stage-cancer
#18
Siamack Sabrkhany, Marijke J E Kuijpers, Sander M J van Kuijk, Linda Sanders, Sharo Pineda, Steven W M Olde Damink, Anne-Marie C Dingemans, Arjan W Griffioen, Mirjam G A Oude Egbrink
BACKGROUND: Detection of early-stage cancer significantly improves patient survival. As platelets play an important role in cancer progression, we aimed to investigate whether platelets can be used for the discovery of early-stage cancer. METHODS: Patients with lung (n = 86) or head of pancreas (n = 42) cancer were included, as were healthy sex- and age-matched controls (n = 92). Blood was collected before initiation of treatment. Platelet count, volume and activation status were quantified in whole blood...
May 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28527377/fishing-for-leadership-the-role-diversification-plays-in-facilitating-change-agents
#19
Joshua S Stoll
Leadership is often viewed as being critical to successful natural resource management. This research focuses on a set of leaders identified through a social network analysis of fishers in a rural coastal region. Leaders' connections to different fisheries are evaluated, and these actors are found to be significantly more diversified than other fishers in the area. Drawing on theory related to institutional entrepreneurship and a series of in-depth interviews with these actors, this paper puts forward several hypotheses to explain how diverse social-ecological connections facilitate leadership...
May 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527319/camera-to-subject-distance-affects-face-configuration-and-perceived-identity
#20
Eilidh Noyes, Rob Jenkins
Face identification is reliable for viewers who are familiar with the face, and unreliable for viewers who are not. One account of this contrast is that people become good at recognising a face by learning its configuration-the specific pattern of feature-to-feature measurements. In practice, these measurements differ across photos of the same face because objects appear more flat or convex depending on their distance from the camera. Here we connect this optical understanding to face configuration and identification accuracy...
May 17, 2017: Cognition
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