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https://www.readbyqxmd.com/read/27913774/gravity-flow-in-proposed-enteral-tube-small-bore-connectors
#1
Ryan T Hurt, Lisa M Epp, Adele K Pattinson, Wanda M Duellman, Stephen M Corner, Manpreet S Mundi
BACKGROUND: Enteral nutrition (EN) misconnections have been identified as a serious and potential deadly problem. An international effort led by EN industry leaders has developed a small-bore enteral connector (ENFit) that in theory will reduce the frequency of misconnections. Despite the potential benefit of preventing misconnections, the full impact of adoption of the ENFit connector is unknown. To assess the impact of transitioning to ENFit on our home EN (HEN) patients, the current study evaluated gravity feeding comparing 2 proposed small-bore connectors to the legacy (current connector) using various commercial formulas...
December 2, 2016: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/27900790/revealing-germylene-compounds-to-attain-superbasicity-with-sigma-donor-substituents-a-density-functional-theory-study
#2
Bishwajit Ganguly, Abul Kalam Biswas
This study reports for the first time that compounds of Ge (II) can function as superbases. Two B(N=PiPr3)2 groups attached to a germanium (II) center show a gas phase proton affinity of 296.2 kcal/mol, close to the range of a hyperbase as revealed by B3LYP-D3/6-31G(2d,p) level of theory. These DFT calculations showed better agreement of geometrical parameters for the reported stable germylene compound 1 than previously reported calculations at the B3LYP/6-31G(2d,p) and PBE/DZP level of theory. A systematic study performed with different substitutions of Ge(II) revealed that such system can achieve basicity close to a hyperbase...
November 30, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27896391/histological-aspects-of-the-fixed-particle-model-of-stone-formation-animal-studies
#3
REVIEW
Saeed R Khan
Crystallization by itself is not harmful as long as the crystals are not retained in the kidneys and are allowed to pass freely down the renal tubules to be excreted in the urine. A number of theories have been proposed, and studies performed, to determine the mechanisms involved in crystal retention within the kidneys. It has been suggested that urinary transit through the nephron is too fast for crystals to grow large enough to be retained. Thus, free particle mechanism alone cannot lead to stone formation, and there must be a mechanism for crystal fixation within the kidneys...
November 28, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27893345/quo-vadis-the-future-of-psychoanalysis
#4
Mauricio Cortina
Although contemporary psychoanalysis is split into different schools and traditions, there is growing support for some of the main tenets of contemporary psychodynamic thinking from attachment theory, infant research, developmental psychopathology, new models of motivation, the neuroscience of emotions and emotional regulation, and the discovery of different implicit and explicit memory systems. These tenets, which psychodynamic clinicians of all stripes encounter in their daily work with clients, are the following: (1) that large footprints are left over from infancy and childhood which involved insensitive, intrusive, frightening, or shaming care; (2) the carryover of these relational experiences into adulthood are expressed as unconscious expectations and attributions we make of others (transference and countertransference; (3) defensive processes and emotional regulation and deregulatory patterns develop to cope with these unhealthy relations...
December 2016: Psychoanalytic Review
https://www.readbyqxmd.com/read/27889563/parent-and-peer-pathways-linking-childhood-experiences-of-abuse-with-marijuana-use-in-adolescence-and-adulthood
#5
W Alex Mason, M Jean Russo, Mary B Chmelka, Roy C Herrenkohl, Todd I Herrenkohl
INTRODUCTION: The social developmental processes by which child maltreatment increases risk for marijuana use are understudied. This study examined hypothesized parent and peer pathways linking preschool abuse and sexual abuse with adolescent and adult marijuana use. METHODS: Analyses used data from the Lehigh Longitudinal Study. Measures included child abuse (physical abuse, emotional abuse, domestic violence, and neglect) in preschool, sexual abuse up to age 18, adolescent (average age=18years) parental attachment and peer marijuana approval/use, as well as adolescent and adult (average age=36years) marijuana use...
November 17, 2016: Addictive Behaviors
https://www.readbyqxmd.com/read/27885763/meditation-awareness-training-for-the-treatment-of-fibromyalgia-syndrome-a-randomized-controlled-trial
#6
William Van Gordon, Edo Shonin, Thomas J Dunn, Javier Garcia-Campayo, Mark D Griffiths
OBJECTIVES: The purpose of this study was to conduct the first randomized controlled trial (RCT) to evaluate the effectiveness of a second-generation mindfulness-based intervention (SG-MBI) for treating fibromyalgia syndrome (FMS). Compared to first-generation mindfulness-based interventions, SG-MBIs are more acknowledging of the spiritual aspect of mindfulness. DESIGN: A RCT employing intent-to-treat analysis. METHODS: Adults with FMS received an 8-week SG-MBI known as meditation awareness training (MAT; n = 74) or an active control intervention known as cognitive behaviour theory for groups (n = 74)...
November 25, 2016: British Journal of Health Psychology
https://www.readbyqxmd.com/read/27884530/heteroaggregation-of-graphene-oxide-nanoparticles-and-kaolinite-colloids
#7
Nikolaos P Sotirelis, Constantinos V Chrysikopoulos
Graphene oxide (GO) is a material with rapid production growth, and consequently GO nanoparticles are expected to eventually penetrate subsurface formations, where fine mineral particles are in abundance. This study examines the heteroaggregation of GO nanoparticles with kaolinite (KGa-1b) colloids under various conditions. Dynamic batch experiments were conducted in solutions with different pH values (pH=4, 7, and 10), different ionic strengths (IS=7, 12, and 27mM), and at three controlled temperatures (8, 14, and 25°C)...
November 22, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27884040/personality-makes-a-difference-attachment-orientation-moderates-theory-of-planned-behavior-prediction-of-cardiac-medication-adherence
#8
Shira Peleg, Noa Vilchinsky, William A Fisher, Abed Khaskia, Morris Mosseri
OBJECTIVE: To achieve a comprehensive understanding of patients' adherence to medication following acute coronary syndrome (ACS), we assessed the possible moderating role played by attachment orientation on the effects of attitudes, subjective norms and perceived behavioral control (PBC), as derived from the Theory of Planned Behavior (TPB; Ajzen, 1991), on intention and reported adherence. METHOD: A prospective longitudinal design was employed. During hospitalization, ACS male patients (N=106) completed a set of self-report questionnaires including socio-demographic variables, attachment orientation, and measures of TPB constructs...
November 24, 2016: Journal of Personality
https://www.readbyqxmd.com/read/27865331/lesbian-gay-bisexual-and-transgender-youth-and-family-acceptance
#9
REVIEW
Sabra L Katz-Wise, Margaret Rosario, Michael Tsappis
In this article, we address theories of attachment and parental acceptance and rejection, and their implications for lesbian, gay, bisexual, and transgender (LGBT) youths' identity and health. We also provide 2 clinical cases to illustrate the process of family acceptance of a transgender youth and a gender nonconforming youth who was neither a sexual minority nor transgender. Clinical implications of family acceptance and rejection of LGBT youth are discussed.
December 2016: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/27860151/high-temperature-hydrogen-storage-of-multiple-molecules-theoretical-insights-from-metalated-catechols
#10
Ehud Tsivion, Srimukh Prasad Veccham, Martin Head-Gordon
Insertion of open metal sites (OMS) into metal-organic frameworks (MOFs) is a promising strategy for preparation of physical adsorbents that enable H2 storage at room temperatures. Density functional theory (DFT) calculations are reported on a promising paradigm for adsorption of multiple hydrogen molecules to a single OMS attached to a MOF linker via a catechol or thiocatechol. The interactions between adsorbed H2 and the OMS are characterized with special attention to their degrees of freedom and thermal properties...
November 17, 2016: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/27859821/covalent-modification-of-highly-ordered-pyrolytic-graphite-with-a-stable-organic-free-radical-using-diazonium-chemistry
#11
Gonca Seber, Alexander Rudnev, Andrea Droghetti, Ivan Rungger, Jaume Veciana, Marta Mas-Torrent, Concepció Rovira, Núria Crivillers
A novel, persistent, electrochemically active perchlorinatedtriphenylmethyl (PTM) radical with a diazonium functionality has been covalently attached onto highly ordered pyrolytic graphite by electrografting in a single-step process. Electrochemical scanning tunneling microscopy (EC-STM) and Raman spectrocopy measurements revealed that PTM molecules have a higher tendency to covalently react at the HOPG step edges. The cross-section profiles from EC-STM images showed that there is current enhancement at the functionalized areas, which can be explained by redox mediated electron tunneling through surface-confined redox-active molecules...
November 18, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27859795/deeper-insight-into-the-factors-controlling-h2-activation-by-geminal-aminoborane-based-frustrated-lewis-pairs
#12
Diana Yepes, Pablo Jaque, Israel Fernández
H2 activation mediated by geminal aminoborane-based frustrated Lewis pairs (FLPs; R2 N-CH2 -BR'2 ) has been computationally explored within the density functional theory framework. It is found that the activation barrier of this process as well as the geometry of the corresponding transition states strongly depend on the nature of the substituents directly attached either to the acidic or the basic centers of the FLPs. The physical factors controlling the whole activation path are quantitatively described in detail by means of the activation strain model of reactivity combined with the energy decomposition analysis method...
November 16, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27845334/non-uniform-evolving-hypergraphs-and-weighted-evolving-hypergraphs
#13
Jin-Li Guo, Xin-Yun Zhu, Qi Suo, Jeffrey Forrest
Firstly, this paper proposes a non-uniform evolving hypergraph model with nonlinear preferential attachment and an attractiveness. This model allows nodes to arrive in batches according to a Poisson process and to form hyperedges with existing batches of nodes. Both the number of arriving nodes and that of chosen existing nodes are random variables so that the size of each hyperedge is non-uniform. This paper establishes the characteristic equation of hyperdegrees, calculates changes in the hyperdegree of each node, and obtains the stationary average hyperdegree distribution of the model by employing the Poisson process theory and the characteristic equation...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27842934/surface-properties-and-morphology-of-mixed-poss-dppc-monolayers-at-the-air-water-interface
#14
Monika Rojewska, Marta Skrzypiec, Krystyna Prochaska
From the point of view of the possible medical applications of POSS (polyhedral oligomeric silsesquioxanes), it is crucial to analyse interactions occurring between POSS and model biological membrane at molecular level. Knowledge of the interaction between POSS and DPPC (1,2-dipalmitoyl-sn-glycero-3-phosphocholine) allows prediction of the impact of POSS contained in biomaterials or cosmetics on a living organism. In the study presented, the surface properties and morphology of Langmuir monolayers formed by mixtures of POSS and the phospholipid (DPPC) at the air/water surface are examined...
October 29, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27818560/proportional-borda-allocations
#15
Andreas Darmann, Christian Klamler
In this paper we study the allocation of indivisible items among a group of agents, a problem which has received increased attention in recent years, especially in areas such as computer science and economics. A major fairness property in the fair division literature is proportionality, which is satisfied whenever each of the n agents receives at least [Formula: see text] of the value attached to the whole set of items. To simplify the determination of values of (sets of) items from ordinal rankings of the items, we use the Borda rule, a concept used extensively and well-known in voting theory...
2016: Social Choice and Welfare
https://www.readbyqxmd.com/read/27803683/the-attachment-doll-play-assessment-predictive-validity-with-concurrent-mother-child-interaction-and-maternal-caregiving-representations
#16
Carol George, Judith Solomon
Attachment is central to the development of children's regulatory processes. It has been associated with developmental and psychiatric health across the life span, especially emotional and behavioral regulation of negative affect when stressed (Schore, 2001; Schore and Schore, 2008). Assessment of attachment patterns provides a critical frame for understanding emerging developmental competencies and formulating treatment and intervention. Play-based attachment assessments provide access to representational models of attachment, which are regarded in attachment theory as the central organizing mechanisms associated with stability or change (Bowlby, 1969/1982; Bretherton and Munholland, 2008)...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27801449/investigation-of-hydrogen-induced-fluorescence-in-c60-and-its-potential-use-in-luminescence-down-shifting-applications
#17
J A Teprovich, A L Washington, J Dixon, P A Ward, J H Christian, B Peters, J Zhou, S Giri, D N Sharp, J A Velten, R N Compton, P Jena, R Zidan
Herein the photophysical properties of hydrogenated fullerenes (fulleranes) synthesized by direct hydrogenation utilizing hydrogen pressure (100 bar) and elevated temperatures (350 °C) are compared to the fulleranes C60H18 and C60H36 synthesized by amine reduction and the Birch reduction, respectively. Through spectroscopic measurements and density functional theory (DFT) calculations of the HOMO-LUMO gaps of C60Hx (0 ≤ x ≤ 60), we show that hydrogenation significantly affects the electronic structure of C60 by decreasing conjugation and increasing sp(3) hybridization...
November 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27792141/attachment-and-chronic-pain-in-children-and-adolescents
#18
REVIEW
Theresa J Donnelly, Tiina Jaaniste
Although attachment theory is not new, its theoretical implications for the pediatric chronic pain context have not been thoroughly considered, and the empirical implications and potential clinical applications are worth exploring. The attachment framework broadly focuses on interactions between a child's developing self-regulatory systems and their caregiver's responses. These interactions are believed to create a template for how individuals will relate to others in the future, and may help account for normative and pathological patterns of emotions and behavior throughout life...
October 25, 2016: Children
https://www.readbyqxmd.com/read/27789916/building-high-coverage-monolayers-of-covalently-bound-magnetic-nanoparticles
#19
Mackenzie G Williams, Andrew V Teplyakov
This work presents an approach for producing a high-coverage single monolayer of magnetic nanoparticles using "click chemistry" between complementarily-functionalized nanoparticles and a flat substrate. This method highlights essential aspects of the functionalization scheme for substrate surface and nanoparticles to produce exceptionally high surface coverage without sacrificing selectivity or control over the layer produced. The deposition of one single layer of magnetic particles without agglomeration, over a large area, with a nearly 100% coverage is confirmed by electron microscopy...
December 1, 2016: Applied Surface Science
https://www.readbyqxmd.com/read/27782627/modeling-of-molecular-photocells-application-to-two-level-photovoltaic-system-with-electron-hole-interaction
#20
Tahereh Nemati Aram, Petrutza Anghel-Vasilescu, Asghar Asgari, Matthias Ernzerhof, Didier Mayou
We present a novel simple model to describe molecular photocells where the energy conversion process takes place by a single molecular donor-acceptor complex attached to electrodes. By applying quantum scattering theory, an open quantum system method, the coherent molecular photocell is described by a wave function. We analyze photon absorption, energy conversion, and quantum yield of a molecular photocell by considering the effects of electron-hole interaction and non-radiative recombination. We model the exciton creation, dissociation, and subsequent effects on quantum yield in the energy domain...
September 28, 2016: Journal of Chemical Physics
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