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Attachment theory

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https://www.readbyqxmd.com/read/28203082/the-parental-bonding-in-families-of-adolescents-with-anorexia-attachment-representations-between-parents-and-offspring
#1
Laura Balottin, Stefania Mannarini, Maura Rossi, Giorgio Rossi, Umberto Balottin
INTRODUCTION: The attachment theory is widely used in order to explain anorexia nervosa origin, course and treatment response. Nevertheless, very little literature specifically investigated parental bonding in adolescents with anorexia, as well as the parents' own bonding and intergenerational transmission within the family. PURPOSE: This study aims to identify any specific pattern of parental bonding in families of adolescents newly diagnosed with restricting-type anorexia, comparing them to the families of the control group...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28201900/discriminating-single-molecule-sensing-by-crown-ether-based-molecular-junctions
#2
Ali K Ismael, Alaa Al-Jobory, Iain Grace, Colin J Lambert
Crown-ether molecules are well known to selectively bind alkali atoms, so by incorporating these within wires, any change in electrical conductance of the wire upon binding leads to discriminating sensing. Using a density functional theory-based approach to quantum transport, we investigate the potential sensing capabilities of single-molecule junctions formed from crown ethers attached to anthraquinone units, which are in turn attached to gold electrodes via alkyl chains. We calculate the change in electrical conductance for binding of three different alkali ions (lithium, sodium, and potassium)...
February 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28199427/-attachment-trauma-and-dissociation-the-genesis-of-the-dissociated-personality
#3
Ricardo E Cortese
In the present work we will deepen on the dissociative identity disorder (DID) and in the main current explanatory theory doomed to elucidate its genesis. The latter implies the interweaving of the notions of trauma, dissociation and attachment, relying on the psychoanalytic traditions and cognitive behavioral, generating an integrated perspective that transfigures the way how it was dealt with clinically and therapeutically this disorder. Under the perspective of the latter, the DID appears insert in the framework of the dissociative disorders of the personality, the same as the borderline organization, and in turn related to those dissociative disorders acquired in adulthood, which includes the post-traumatic stress disorder and some somatization disorders and conversion, which suggests the existence of an extended spectrum of dissociative disorders...
March 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28197984/quantifying-bacterial-attachment-and-detachment-using-leaching-solutions-of-various-ionic-strengths-after-bacterial-pulse
#4
Nag-Choul Choi, Jae-Woo Choi, Kyu-Sang Kwon, Sang-Gil Lee, Soonjae Lee
In this study, we quantified the attachment and detachment of bacteria during transport in order to elucidate the contributions of reversible attachment on bacterial breakthrough curves. The first set of breakthrough experiment was performed for a laboratory sand column using leaching solutions of deionized water and mineral salt medium (MSM) of 200 mM with reference to KCl solution by employing Pseudomonas putida as a model bacterium. In the second set of experiment, the ionic strengths of leaching solutions immediately after bacterial pulse were lowered to tenfold and 100-fold diluted system (2 and 20 mM MSM) to focus on the influence of physicochemical factor...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28197618/unraveling-the-structure-and-exciton-coupling-for-multichromophoric-merocyanine-dye-molecules
#5
Federico Koch, Matthias Stolte, André Zitzler-Kunkel, David Bialas, Andreas Steinbacher, Tobias Brixner, Frank Würthner
The relative orientation of chromophores is a key factor in determining the relationship between the structure and the functionality in molecular multichromophore ensembles. In the case of structurally flexible molecular systems in solution, the task to clarify the relevant effects of accessible chromophore orientations with spectroscopic observations is very demanding. In this study, we address this issue by investigating a series of differently connected multichromophoric systems composed of highly dipolar merocyanine dyes that are systematically varied in their substitution pattern and the number of chromophores attached to a bridging benzene ring...
February 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28195364/conjoined-twins-from-conception-to-separation-a-review
#6
REVIEW
Asma Mian, Nader Ishak Gabra, Tanuj Sharma, Nitsa Topale, Jerzy Gielecki, R Shane Tubbs, Marios Loukas
Conjoined twins are suggested to result from aberrant embryogenesis. The two main theories proposed to explain the phenomena are fission and fusion. The incidence rate is 1 in 50,000 births; however, since about 60% of the cases are stillborn, the true incidence is approximated at 1 in 200,000. There is a higher predisposition towards female than male gender with a ratio of 3:1. Conjoined twins are classified based upon the site of attachment. The extent of organ sharing, especially the heart, determines the possibility and prognosis of a separation procedure...
February 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28195013/betrayal-trauma-in-youth-and-negative-communication-during-a-stressful-task
#7
Vanessa M Jacoby, Elisa Krackow, Joseph R Scotti
Attachment-based theories and related research illustrate that emotion regulation develops in the context of a secure relationship between a child and caregiver. When a secure bond is broken, such as in the context of betrayal trauma, children fail to develop necessary emotion regulation skills which can lead to an array of relational problems. The current study examined the relations between betrayal trauma history, type of communication during a stressful interpersonal laboratory task, and emotion regulation difficulties in a sample of trauma-exposed adolescents...
March 2017: International Journal of Aging & Human Development
https://www.readbyqxmd.com/read/28192852/effective-disengagement-insecure-people-are-more-likely-to-disengage-from-an-ongoing-task-and-take-effective-action-when-facing-danger
#8
Tsachi Ein-Dor, Adi Perry-Paldi, Jenna Merrin, Yaniv Efrati, Gilad Hirschberger
OBJECTIVE: People believe that they can respond effectively to threats, but actually experience difficulties in disengaging from ongoing tasks and shifting their attention to life-threatening events. We contend that this tendency is especially true for secure people with respect to their worldview and perception of others and not to insecure individuals. METHOD: In Study 1 (N=290), we examined individuals' reactions to various threat scenarios. In Study 2 (N=65), we examined these reactions using a behavioral design high in ecological validity...
February 13, 2017: Journal of Personality
https://www.readbyqxmd.com/read/28191980/interaction-mechanisms-between-air-bubble-and-molybdenite-surface-impact-of-solution-salinity-and-polymer-adsorption
#9
Lei Xie, Jingyi Wang, Duowei Yuan, Chen Shi, Xin Cui, Hao Zhang, Qi Liu, Qingxia Liu, Hongbo Zeng
The surface characteristics of molybdenite (MoS2) such as wettability and surface interactions have attracted much research interest in a wide range of engineering applications, such as froth flotation. In this work, a bubble probe atomic force microscope (AFM) technique was employed to directly measure the interaction forces between an air bubble and molybdenite mineral surface before/after polymer (i.e., guar gum) adsorption treatment. The AFM imaging showed that the polymer coverage on the surface of molybdenite could achieve ~5...
February 13, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28177254/experimental-and-numerical-investigations-of-silver-nanoparticle-transport-under-variable-flow-and-ionic-strength-in-soil
#10
Joanna Makselon, Dan Zhou, Irina Engelhardt, Diederik Jacques, Erwin Klumpp
Unsaturated column experiments were conducted with an undisturbed loamy sand soil to investigate the influence of flow interruption (FI) and ionic strength (IS) on the transport and retention of surfactant-stabilized silver nanoparticles (AgNP) and the results were compared to those obtained under continuous flow conditions. AgNP concentrations for breakthrough curves (BTCs) and retention profiles (RPs) were analyzed by ICP-MS. Experimental results were simulated by the numerical code HP1 (Hydrus-PhreeqC) with the DLVO theory, extended colloid filtration theory and colloid release model...
February 8, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28174005/the-expression-of-cancer-stem-cell-markers-in-human-colorectal-carcinoma-cells-in-a-microenvironment-dependent-manner
#11
Vaidotas Stankevicius, Linas Kunigenas, Edvinas Stankunas, Karolina Kuodyte, Egle Strainiene, Jonas Cicenas, Narimantas E Samalavicius, Kestutis Suziedelis
Numerous lines of evidence support the hierarchical model of cancer development and tumor initiation. According to the theory, cancer stem cells play a crucial role in the formation of the tumor and should be targeted for more effective anticancer treatment. However, cancer stem cells quickly loose their characteristics when propagated as 2D cell culture, indicating that the 2D cell culture does not provide the appropriate settings to maintain an in vivo environment. In this study we have investigated the expression of self-renewal, cancer stem cell and epithelial to mesenchymal transition markers after the transfer of human colorectal carcinoma cell DLD1 and HT29 lines from 2D cell cultures to scaffold-attached laminin rich extracellular matrix and scaffold-free multicellular spheroid 3D culture models...
February 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28171802/links-between-early-baseline-cortisol-attachment-classification-and-problem-behaviors-a-test-of-differential-susceptibility-versus-diathesis-stress
#12
Michelle C Fong, Jeffrey Measelle, Elisabeth Conradt, Jennifer C Ablow
The purpose of the current study was to predict concurrent levels of problem behaviors from young children's baseline cortisol and attachment classification, a proxy for the quality of caregiving experienced. In a sample of 58 children living at or below the federal poverty threshold, children's baseline cortisol levels, attachment classification, and problem behaviors were assessed at 17 months of age. We hypothesized that an interaction between baseline cortisol and attachment classification would predict problem behaviors above and beyond any main effects of baseline cortisol and attachment...
February 4, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28169824/-agitation-in-people-with-dementia-160-scoping-review-and-putting-the-phenomenon-into-perspective-using-the-comfort-theory-and-the-concept-of-attachment
#13
Corinne Schaub, Diane Morin, Armin von Gunten
<ce:para>Agitation in hospitalized demented patients is troublesome and disruptive for both patients and caregivers. The literature indicates that agitation is strongly related to physical or psychological discomfort and its recent definition includes the additional relation to emotional distress. Hospitalization associated with major cognitive difficulties further activates the need for attachment and security to which caregivers must pay attention. This synthesis review first deals with the evidence related to agitation in people with dementia and its relationship with discomfort...
July 5, 2016: Recherche en Soins Infirmiers
https://www.readbyqxmd.com/read/28168598/brain-activity-underlying-negative-self-and-other-perception-in-adolescents-the-role-of-attachment-derived-self-representations
#14
Martin Debbané, Deborah Badoud, David Sander, Stephan Eliez, Patrick Luyten, Pascal Vrtička
One of teenagers' key developmental tasks is to engage in new and meaningful relationships with peers and adults outside the family context. Attachment-derived expectations about the self and others in terms of internal attachment working models have the potential to shape such social reorientation processes critically and thereby influence adolescents' social-emotional development and social integration. Because the neural underpinnings of this developmental task remain largely unknown, we sought to investigate them by functional magnetic resonance imaging...
February 6, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28167310/change-trajectories-of-aggressive-behavior-among-children-in-long-term-residential-care
#15
Shalhevet Attar-Schwartz, Rami Benbenishty, Ilan Roziner
This study examined change trajectories of aggressive behaviors among children in long-term residential care in Israel and identified various child-, family-, and placement-related predictors of the change trajectories. Records of 799 children (average age at the beginning of the four years=10.4, 33.1% female) in their first four consecutive years in care were analyzed using the TRF aggressive behavior subscale (Achenbach, 1991) to measure the outcome variable. Children's and parents' characteristics and placement-related factors were used to explain variance in change trajectories...
February 3, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28157859/measurement-of-back-scattering-patterns-from-single-laser-trapped-aerosol-particles-in-air
#16
Yong-Le Pan, Chuji Wang, Leonid A Beresnev, Alex J Yuffa, Gorden Videen, David Ligon, Joshua L Santarpia
We demonstrate a method for measuring elastic back-scattering patterns from single laser trapped micron-sized particles, spanning the scattering angle range of θ=167.7°-180° and φ=0°-360° in spherical coordinates. We calibrated the apparatus by capturing light-scattering patterns of 10 μm diameter borosilicate glass microspheres and comparing their scattered intensities with Lorenz-Mie theory. Back-scattering patterns are also presented from a single trapped Johnson grass spore, two attached Johnson grass spores, and a cluster of Johnson grass spores...
January 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28154980/a-computational-study-on-the-role-of-noncovalent-interactions-in-the-stability-of-polymer-graphene-nanocomposites
#17
S Güryel, M Alonso, B Hajgató, Y Dauphin, G Van Lier, P Geerlings, F De Proft
Understanding the interaction between graphene and polymers is of essential interest when designing novel nanocomposites with reinforced mechanical and electrical properties. In this computational study, the interaction of pristine graphene (PG) and graphene oxide (GO) with a series of functional groups, representative of the functionalised buildings blocks occurring in different polymers, and attached to aliphatic and aromatic chains, is analyzed using dispersion-corrected semi-empirical methods (PM6-D3H4X) and density functional theory calculations with empirical dispersion corrections...
February 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28154787/survivors-solidarity-and-attachment-in-the-immediate-aftermath-of-the-typhoon-haiyan-philippines
#18
Andrea Bartolucci, Michele Magni
INTRODUCTION: Anti-social behavior and self-preservation are often assumed to be normal responses to threats and disasters; on the contrary, decades of research and empirical studies in social sciences showed that pro-social behaviors are frequently common and that solidarity is the typical response to a variety of threats. The main objective of this study is to investigate and describe survivors' behavior, especially solidarity, according to the presence of familiar persons and to the perception of physical danger, elaborating the framework of Mawson's social attachment theory...
January 9, 2017: PLoS Currents
https://www.readbyqxmd.com/read/28147518/a-first-principle-study-of-graphene-functionalized-with-hydroxyl-nitrile-or-methyl-groups
#19
M Barhoumi, D Rocca, M Said, S Lebègue
By means of ab initio calculations, we study the functionalization of graphene by different chemical groups such as hydroxyl, nitrile, or methyl. Two extreme cases of functionalization are considered: a single group on a supercell of graphene and a sheet of graphene fully functionalized. Once the equilibrium geometry is obtained by density functional theory, we found that the systems are metallic when a single group is attached to the sheet of graphene. With the exception of the nitrile functionalized boat configuration, a large bandgap is obtained at full coverage...
January 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28145812/childhood-sexual-abuse-and-fear-of-abandonment-moderate-the-relation-of-intimate-partner-violence-to-severity-of-dissociation
#20
Noga Zerubavel, Terri L Messman-Moore, David DiLillo, Kim L Gratz
Betrayal trauma theory proposes a relation between intimate partner violence (IPV) and dissociation, suggesting that dissociation among victims of IPV may function to restrict awareness of abuse in order to preserve attachments perceived as vital. We investigated two factors that may moderate the relation between IPV and dissociation-childhood sexual abuse (CSA) severity and fear of abandonment-among 348 women currently in a relationship. The relation between frequency of IPV (sexual and physical) and dissociation (amnesia and depersonalization) was moderated by CSA severity and fear of abandonment...
February 1, 2017: Journal of Trauma & Dissociation
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