Quasi-two-dimensional or hcp palladium nanoparticles with host-guest interaction prepared at room temperature

Quasi-two-dimensional palladium nanoparticles with an average lateral dimension of 7 nm have been prepared by reduction of a PdCl₂ graphite intercalation compound precursor by lithium-diphenylide in tetrahydrofuran at room temperature. Selected-area electron diffraction patterns provide evidence that the palladium nanoparticles are hcp single-crystal particles. Owing to the template effect of the graphite lattice, the lattice parameter of palladium was found to have a strong relation with the graphite, and a 3a _graphite superstructure was inferred. The palladium structure is rotated by 30^o with regard to the carbon host lattice. Raman spectroscopy on this sample showed that a charge transfer between carbon and palladium occurs. The sample can be considered as a common Pd-graphite intercalation compound with palladium nanoparticles as guest. This behaviour is different from palladium nanoparticles prepared by hydrogen reduction at higher temperatures from the same precursor material. These particles may represent an early stage of nanoparticle formation.     

Crystal growth and defect study of BiSbTe3

BiSbTe₃ single crystals have been grown by the Bridgman technique. Microscopic observations of the as-grown crystals reveal typical features, such as striations on the top free surface, which are attributed to the effect of growth conditions. A nitric-acid-based reagent capable of revealing dislocations has been developed and tested. Etch pits are produced at the dislocation sites, but some discrepancies have been observed on matched cleavage surfaces. The structural difference between the matched cleavage surfaces is discussed.     

Life: Definition,Origin, and Evolution

Out of all the natural phenomena surrounding us, the phenomena Life, as a matter of course, is that which is the most mysterious and least understood of all. In many aspects, it seems as though it would be possible to investigate, study, and explain Life, like so many of the other subjects that fall within the category of the natural sciences: time, space, mass, movement, and so on. However, in its essence, Life is organized and managed differently than all other natural phenomena, operating, as it were, according to its own laws. Life certainly has certain clearly recognizable characteristics, such as: metabolism, homeostasis, continuity, and more. However, up until the present time, no definition for Life has been provided, which unifies it as an entity, and differentiates it unmistakably from other natural phenomenon. The current article offers a definition of the true nature of the phenomenon of Life, which in turn helps to explain the big questions of life—evolution, the mind–body problem, consciousness, and more.     

Systems evolution,structures of long‐waves,and systems management

By classifying the evolution of systems into inter‐level evolution and intra‐level evolution and dividing the intra‐level evolution into four stages which are interrelated but quite different from each other, we discuss structures of several typical systems long‐waves, and strategies of systems management.     

Revisiting the dimensional structure of the emotion domain

Recent research has claimed that a novelty dimension is needed to represent the cognitive emotion structure over and above valence, power and arousal. Novelty emerged when student samples evaluated the meaning of 24 emotion terms on 142 emotion features. This claim is debatable, however, because to date novelty has never been found in similarity sorting studies. It is possible that novelty emerged because sophisticated student samples evaluated emotion terms on emotion features. The current research identified a large, representative set of emotion terms using a free-listing task in a middle childhood up to early adulthood sample (N = 5071). Children, adolescents, students and adults (N = 1184) then evaluated the similarity between these emotion terms using a similarity rating task without priming any emotion feature. Novelty robustly emerged as the fourth dimension. The existence of novelty is thus confirmed with a different method across a wide variety of participants.     

Perversion – structure or organization?

Abstract

This paper aims to discuss perversion, its implications in the clinical setting, and some of the key concepts around it. First, the etymology of the words “perversion”, “structure”, and “organization” is analyzed. Next follows a discussion on the sexual organization of instincts – from the Unconscious to the Oedipus complex in Freud and Lacan – setting the ground for a disavowal-based theory of perversion. An instructive approach has been chosen so as better to organize the various points presented.

Laender NR et al. Perversion – Struktur oder Organisation?

Der Aufsatz diskutiert die Perversion, ihre Auswirkungen im klinischen Setting und einige Schlüsselkonzepte. Zuerst wird die Herkunft der Wörter Perversion, Struktur und Organisation analysiert. Dann folgt eine Diskussion über die Organisation der Sexualität bzw. der Instinkte – vom Unbewussten bis zum Ödipuskomplex bei Freud und Lacan – wodurch eine Theorie der Perversion auf der Basis von Ablehnung begründet wird. Ein instruktiver Zugang, bei dem die verschiedenen Punkte von Interesse gut strukturiert sind, wurde gewählt.

Laender NR et al . Perversion – organización o estructura?

Este trabajo intenta discutir la perversión, sus implicaciones en la clínica y algunos de los conceptos clave alrededor de la perversión.

Primero, es analizada la etimología de las palabras Perversión, Estructura y Organización. Despúes sigue una discusión sobre la organización sexual de los instintos- desde lo Inconsciente hasta el complejo de Edipo en Freud y Lacan- planteando las bases para una teoría de la negación-desaprobación de la perversión.

Para organizar mejor los varios aspectos presentados se escogió una aproximación instructiva.     

Don't Let the Doorknob Hit You: A Relational-Intersubjective Exploration of Leaving and Remaining within the Therapeutic Frame

“Doorknob comments” is a concept that is not well represented in the professional literature. Through three case examples the author develops the theory that doorknob comments can fall within the internal structure of the session or outside of such a structure. In the former case, giving the internal element precedence by extending the session length to address the comments may be warranted. In the latter case, helping a client by scaffolding their ability to structure experience may require that the comment be processed at a later session. In either case, the ability to structure experience, which is the process of elaborating meaning, is an important aspect of treatment.     

Correcting Too Much or Too Little? The Performance of Three Chi-Square Corrections

This simulation study investigates the performance of three test statistics, T₁, T₂, and T₃, used to evaluate structural equation model fit under non normal data conditions. T₁ is the well-known mean-adjusted statistic of Satorra and Bentler. T₂ is the mean-and-variance adjusted statistic of Sattertwaithe type where the degrees of freedom is manipulated. T₃ is a recently proposed version of T₂ that does not manipulate degrees of freedom. Discrepancies between these statistics and their nominal chi-square distribution in terms of errors of Type I and Type II are investigated. All statistics are shown to be sensitive to increasing kurtosis in the data, with Type I error rates often far off the nominal level. Under excess kurtosis true models are generally over-rejected by T₁ and under-rejected by T₂ and T₃, which have similar performance in all conditions. Under misspecification there is a loss of power with increasing kurtosis, especially for T₂ and T₃. The coefficient of variation of the nonzero eigenvalues of a certain matrix is shown to be a reliable indicator for the adequacy of these statistics.     

问题结构因素对伦敦塔问题解决的影响

以121名2,4,6年级小学生为被试,采用计算机呈现的方式,探讨了子目标和次佳路径这两个问题结构因素对伦敦塔问题解决表现的影响。结果发现：子目标和次佳路径两个因素存在交互作用,解决有子目标－无次佳路径问题时的计划指标要高于其他类型问题。根据被试在伦敦塔任务上的表现,划分为三大类7种表现类型。当存在不同的问题结构因素时,问题解决表现类型体现出差异性。     

Latent structure of executive function in five- and six-year-old children: A longitudinal study

This longitudinal study analyses the structure of executive function in children assessed at five and six years of age and examines the longitudinal relationships between the executive function dimensions identified at the two age levels. Confirmatory factor analysis was used to examine the latent structure of executive function at both age levels. The best fit to the data at both age levels was a two-factor model in which inhibition was distinguished, while working memory and shifting emerged as a unitary component. Some variables show a moderate longitudinal stability and the inhibitory control tasks display reduced continuity across ages.