What is Classical Mereology?

Classical mereology is a formal theory of the part-whole relation, essentially involving a notion of mereological fusion, or sum. There are various different definitions of fusion in the literature, and various axiomatizations for classical mereology. Though the equivalence of the definitions of fusion is provable from axiom sets, the definitions are not logically equivalent, and, hence, are not inter-changeable when laying down the axioms. We examine the relations between the main definitions of fusion and correct some technical errors in prominent discussions of the axiomatization of mereology. We show the equivalence of four different ways to axiomatize classical mereology, using three different notions of fusion. We also clarify the connection between classical mereology and complete Boolean algebra by giving two “neutral” axiom sets which can be supplemented by one or the other of two simple axioms to yield the full theories; one of these uses a notion of “strong complement” that helps explicate the connections between the theories.     

Brain tumor detection using fusion of hand crafted and deep learning features

The perilous disease in the worldwide now a days is brain tumor. Tumor affects the brain by damaging healthy tissues or intensifying intra cranial pressure. Hence, rapid growth in tumor cells may lead to death. Therefore, early brain tumor diagnosis is a more momentous task that can save patient from adverse effects. In the proposed work, the Grab cut method is applied for accurate segmentation of actual lesion symptoms while Transfer learning model visual geometry group (VGG-19) is fine-tuned to acquire the features which are then concatenated with hand crafted (shape and texture) features through serial based method. These features are optimized through entropy for accurate and fast classification and fused vector is supplied to classifiers. The presented model is tested on top medical image computing and computer-assisted intervention (MICCAI) challenge databases including multimodal brain tumor segmentation (BRATS) 2015, 2016, and 2017 respectively. The testing results with dice similarity coefficient (DSC) achieve 0.99 on BRATS 2015, 1.00 on BRATS 2015 and 0.99 on BRATS 2017 respectively.     

Fusion or Internalized Homophobia? A Pilot Study of Bowen's Differentiation of Self Hypothesis With Lesbian Couples

Bowen, using the concept of differentiation, hypothesized that the way individuals learn to deal with their relationships with families of origin will influence the way they manage their relationships with their partners. This study surveyed a group of 53 lesbian couples on differentiation of self, internalized homophobia, and relationship satisfaction. We found that lesbian couples were not significantly different in their level of differentiation than random pairs. We also found that there was a positive relationship between differentiation of self and relationship satisfaction and that when considered together, internalized homophobia had the more significant connection to relationship satisfaction than did differentiation of self Implications for therapy are drawn from these findings.     

Multimo dal Logics of Products of Topologies

We introduce the horizontal and vertical topologies on the product of topological spaces, and study their relationship with the standard product topology. We show that the modal logic of products of topological spaces with horizontal and vertical topologies is the fusion S4 ⊕ S4. We axiomatize the modal logic of products of spaces with horizontal, vertical, and standard product topologies.We prove that both of these logics are complete for the product of rational numbers ℚ × ℚ with the appropriate topologies. AMS subject classification : 03B45, 54B10 The last author’s research was supported by a Social Sciences and Humanities Research Council of Canada grant number: 725-2000-2237. Presented by Melvin Fitting     

Théorie du noyau central et transformation des cultures organisationnelles à l'occasion d'une fusion

Mergers are characterized by a regrouping of organizations, which do not have the same cultures. The question of the future of these different cultures therefore arises. An observational study was conducted based on the theory of the Central Core, selected to examine the organisational cultures. It consisted of comparing the initial cultures of two firms selected to merge and that of a group made up of employees of the two organizations and who worked together for six months. We observed a transformation of the central core of these employees' social representations. This preliminary study showed the relevance of the use of the theory of the Central Core in the study of cultural changes.     

God,Time, and Eternity

Abstract

Theologian Karl Rahner holds that in trinitarian theology and evolutionary conceptions of Christology and anthropology, personhood emerges as a dynamic function of being-in-relation. Integrating Rahner's insights with neuroscientist Terrence W. Deacon's recent work on emergence provides a fresh framework for interpreting and developing Rahner's understanding of the manner in which created being subsists dynamically vis-à-vis infinite Being as such (the analogia entis), how one might conceive of God's creative activity or grace at work in evolutionary processes, and how Homo sapiens has evolved to bear the imago trinitatis—image of the Trinity—in a unique way.     

Synthesis of nanostructured vanadium powder by high-energy ball milling: X-ray diffraction and high-resolution electron microscopy characterization

Vanadium metal powders, ball milled with different surfactants viz., stearic acid, KCl and NaCl, have been studied by X-ray diffraction and transmission electron microscopy. The surfactants alter the microstructural and morphological characteristics of the powders. Ball milling with stearic acid results in solid-state amorphization, while powders milled with KCl yield vanadium–tungsten carbide nanocomposite mixtures. NaCl proved to be an excellent surfactant for obtaining nanostructured fusion-grade vanadium powders. In order to understand the reaction mechanism behind any interstitial addition in the ball-milled powders, CHNOS analysis was performed.     

外来务工女性刻板印象威胁的应对策略与认同管理

为了探讨外来务工女性群体刻板印象威胁的应对策略和认同管理,从天津市WX社区通过滚雪球抽样方法选取124名外来务工女性作为被试,采用问卷调查的形式,测查了外来务工女性群体刻板印象应对策略和认同管理模式,尤其考察了认同基线水平、认同融合、否定策略和榜样策略对于应对和认同管理的有效性。结果表明：（1）外来务工女性群体具有双重认同趋势;具有较高城市认同融合的外来务工女性群体具有显著的认同维护倾向;（2）不同印象管理水平的外来务工女性对否定策略的使用差异性很小,反而是刻板印象威胁的长期性和暴露性是引发否定策略的重要因素;（3）角色榜样成功的应得性对外来务工女性城市认同感的提高具有积极效应;（4）城市务工年数和收入成为这一群体城市认同的主要影响因素。     

Psychological implications of a vision disorder

The paper discusses how the condition of crossed‐eyes affects a baby's eye contact with mother and potentially results in the loss of a vital emotional connection with her during the earliest days of life. This loss may contribute to a rupture that arrests emotional development at a deep psychic level. It is suggested that, in the same way as premature separation, the rupture can precipitate a ‘fusional complex’, a defence that develops to protect the infant against psychotic anxieties. The paper proposes that psychological development atrophies in this place and creates a blind spot. These ideas are explored through analytic theory and developmental literature. The dreams of a patient and his art are used to illustrate a 10‐year ‘alchemical’ process of bringing repressed material into consciousness and transformation. Healing the psychological wounds of deficits in early eye contact may be found to bring sight to a blind spot that was created by the nature of the condition itself.     

Belief merging and the discursive dilemma: an argument-based account to paradoxes of judgment aggregation

The aggregation of individual judgments on logically interconnected propositions into a collective decision on the same propositions is called judgment aggregation. Literature in social choice and political theory has claimed that judgment aggregation raises serious concerns. For example, consider a set of premises and a conclusion where the latter is logically equivalent to the former. When majority voting is applied to some propositions (the premises) it may give a different outcome than majority voting applied to another set of propositions (the conclusion). This problem is known as the discursive dilemma (or paradox). The discursive dilemma is a serious problem since it is not clear whether a collective outcome exists in these cases, and if it does, what it is like. Moreover, the two suggested escape-routes from the paradox—the so-called premise-based procedure and the conclusion-based procedure—are not, as I will show, satisfactory methods for group decision-making. In this paper I introduce a new aggregation procedure inspired by an operator defined in artificial intelligence in order to merge belief bases. The result is that we do not need to worry about paradoxical outcomes, since these arise only when inconsistent collective judgments are not ruled out from the set of possible solutions.