Numerical simulation of solitary gravity waves on deep water with constant vorticity

Essentially nonlinear dynamics of surface gravity waves on deep water with constant vorticity is modeled using governing equations in conformal coordinates. It is known that the dispersion relation of surface gravity waves upon shear flow has two branches, with one of them being weakly dispersive for long waves. The weakly nonlinear evolution of waves of this branch can be described by the integrable Benjamin-Ono equation, which has soliton and multi-soliton solutions, and solitons interact elastically. To what extent the properties of such solitary waves obtained within the weakly nonlinear models are preserved in the exact Euler equations is not known. Here, we investigate the behaviour of this class of solitary waves without the restrictive assumption of weak nonlinearity by using the exact Euler equations. Evolution of localized initial perturbations leading to formation of one or multiple solitary waves is modeled and properties of finite amplitude solitary waves are discussed. It is shown that within exact equations two-soliton collisions are inelastic and the waves receive phase shift after the interaction

Branding the learning function: An exploratory study

The learning function is rapidly evolving from its traditional role of imparting training to becoming a strategic business partner capable of impacting organizational performance through employee development. As research suggests, the learning function can help develop a strong, recognizable brand for corporate learning (CorpuXchange, 2010). This dissertation study explores how one specific company brands its learning function and the role of the stakeholders in this process. Structured as an exploratory qualitative case study, this research uses Keller\u27s (2001) customer-based brand equity (CBBE) model, which is used in product branding, as a framework for how the learning brand is built. Twenty-four participants from three stakeholder groups were interviewed. The key findings include: (1) a learning brand is not dependent on a particular program, but rather encompasses the learning cycle as a whole; (2) the role of stakeholders (especially leadership involvement) and learning culture both played a critical role in the company\u27s learning process; and (3) no specific process or components of the learning process can be singled out as reasons responsible for building the learning brand at the company. Study data show that the entire life cycle of learning and development played a fundamental role in creating the brand experience. This study reveals common processes and structures in building a learning brand, and used this learning to iterate a conceptual framework that can be validated with additional companies. The findings of this study have implications for corporate learning functions seeking to build an established framework to build their learning brand. The revised conceptual framework can meet this requirement as it encapsulates the integral components of the learning cycle with associated factors critical to creating a learning and development experience with a brand value

ІМУНОГІСТОХІМІЧНЕ ДОСЛІДЖЕННЯ ЦИТОАРХІТЕКТОНІКИ Т- ТА В- КЛІТКОВИННИХ КОМПАРТМЕНТІВ СЕЛЕЗІНКИ

Specific characteristics of cytoarchitectonics T-and B- cellular compartments of the rat spleen white pulp in health have been revealed by the methods of immunochistochemistry.Serial paraffin sections 5 mcm thickness of the rat spleen, fixed in formalin, were stained with immunohistochemically monoclonal antibodies against CD1a, CD3, CD4, CD8, CD20, CD23, as well as on myeloperoxidase in order to detect neutrophils and eosinophiles. It has been established that different populations of leucocytes have its definitely evident specific localization in multichamber spleen parenchema.Методами иммуногистохимии выявлены особенности цитоархитектоники T- и B- клеточных компартментов белой пульпы селезенки крысы в норме.Серийные парафиновые срезы толщиной 5 мкм фиксированной формалином селезенки окрашивались иммуногистохимически моноклональными антителами против CD1a, CD3, CD4, CD8, CD20 CD23, а также на миелопероксидазу для выявления нейтрофилов и эозинофилов. Установлено, что различные популяции лимфоцитов имеют четко выраженную свою специфическую локализацию в многокамерной паренхиме селезенки.Методами імуногістохімії виявлені особливості цитоархітектоніки Т- та В- клітковинних компартментів білої пульпи селезінки криси в нормі.Серійні парафінові зрізи товщиною 5 мкм фіксованої формаліном селезінки зафарбовувалися імуногістохімічними моноклональними антитілами проти CD1a, CD3, CD4, CD8, CD20, CD23,а також на мієлопероксидазу для виявлення нейтрофілів і еозинофілів. Встановлено, що різні популяції лімфоцитів мають чітко виражену свою специфічну локалізацію в багатокамерній паренхімі селезінки