Equivalence classes of augmentations and Morse complex sequences of Legendrian knots

Let L be a Legendrian knot in R^3 with the standard contact structure. In [10], a map was constructed from equivalence classes of Morse complex sequences for L, which are combinatorial objects motivated by generating families, to homotopy classes of augmentations of the Legendrian contact homology algebra of L. Moreover, this map was shown to be a surjection. We show that this correspondence is, in fact, a bijection. As a corollary, homotopic augmentations determine the same graded normal ruling of L and have isomorphic linearized contact homology groups. A second corollary states that the count of equivalence classes of Morse complex sequences of a Legendrian knot is a Legendrian isotopy invariant.Comment: 28 pages, 17 figure

Alumina bearing in gas-lubricated gyros

Friction and wear properties of alumina bearings for use in gas-lubricated gyroscope

Characterizing cardiac involvement in chronic kidney disease using CMR—a systematic review

Purpose of Review: The aim of the review was to identify and describe recent advances (over the last 3 years) in cardiac magnetic resonance (CMR) imaging in patients with chronic kidney disease (CKD). We conducted a literature review in line with current guidelines. Recent Findings: The authors identified 22 studies. Patients with CKD had left ventricular global and regional dysfunction and adverse remodeling. Stress testing with CMR revealed a reduced stress-response in CKD patients. Native T1 relaxation times (as a surrogate markers of fibrosis) are elevated in CKD patients, proportional to disease duration. Patients with CKD have reduced strain magnitudes and reduced aortic distensibility. Summary: CMR has diagnostic utility to identify and characterize cardiac involvement in this patient group. A number of papers have described novel findings over the last 3 years, suggesting that CMR has potential to become more widely used in studies in this patient group

Facilitating development : an examination of partnerships and intentional development by cruise tourism in Vanuatu : a thesis presented in partial fulfilment of the requirements for the degree of Master's of International Development, Massey University

Since the 2002 Johannesburg World Summit on Sustainable Development (WSSD), the private sector has been elevated as an equal partner for development, alongside the public and the non-governmental organisation (NGO) sectors. Consequently, corporate social responsibility (CSR) and public-private partnerships (PPP), both being examples of intentional development, have become increasingly important for international development. Globally, cruise tourism is the fastest growing sector of tourism with a compounding increase of 8% year on year. In this Vanuatu based study, the development initiatives of Carnival Australia, a mass tourism cruise multinational, are examined to establish what extent cruise tourism can enhance development outcomes. A qualitative approach consisting of non-participant observation, semi-structured interviews and a detailed literature review has resulted in the support of previous studies indicating that the private sector can be unreliable when considered a development actor. Carnival is, however, an enthusiastic and committed facilitator of development and should be viewed as such. A realignment of expectations is vitally important for the private sector’s ability to meet expectations as a facilitating partner towards achieving sustainable development. This is reflective of Sustainable Development Goal #17 on Partnerships. Keywords: Carnival, Cruise, Tourism, Corporate Social Responsibility, CSR, Public-Private Partnership, PPP, P3, DFAT, Community Development, Facilitation for Development, Development First, Vanuatu, Pacific, SD

What does STOP-IgAN tell us about how to treat IgA nephropathy?

No abstract available

From Service to Experience: Understanding and Defining the Hospitality Business

Failure adequately to define or understand hospitality as a commercial phenomenon has created a fragmented academic environment and a schizophrenia in the industry that has the potential to limit its development as a global industry. This article suggests that, by redefining hospitality as behaviour and experience, a new perspective emerges that has exciting implications for the management of hospitality businesses. A framework to describe hospitality in the commercial domain is proposed. This framework suggests a focus on the host–guest relationship, generosity, theatre and performance, ‘lots of little surprises’, and the security of strangers – a focus that provides guests with experiences that are personal, memorable and add value to their lives

Observing the spin of a free electron

Long ago, Bohr, Pauli, and Mott argued that it is not, in principle, possible to measure the spin components of a free electron. One can try to use a Stern-Gerlach type of device, but the finite size of the beam results in an uncertainty of the splitting force that is comparable with the gradient force. The result is that no definite spin measurement can be made. Recently there has been a revival of interest in this problem, and we will present our own analysis and quantum-mechanical wave-packet calculations which suggest that a spin measurement is possible for a careful choice of initial conditions