A Note from the Guest Editor

The following contributions are cited separately in RILM: John T. HAMILTON, Così fan tutti i compositori: The Cephalus-Procris myth and the birth of romantic opera in Hoffmann's Aurora (RILM 2013-12919); Julia RANDEL, Un-voicing Orpheus: The powers of music in Stravinsky and Balanchine's 'Greek' ballets (RILM 2013-12920)

The (un)invited guest? Feminist pedagogy and guest lecturing

Teaching a one-off session on a colleague’s course is a commonplace occurrence in higher education teaching practice, but it is not an area that has received sufficient attention in pedagogical literature. This article focuses on the scenario where a feminist teacher is invited to give a guest lecture, but is not sure if working with feminist pedagogy will be welcome. Guest lecture pedagogy is outlined: (i) guest lectures are always and yet never a one-off, because they are always embedded in wider teaching practice (ii) guest lecture pedagogy is both a struggle between time and pedagogical principles and an opportunity to break with convention. The challenges and risks of implementing feminist pedagogy in a guest lecture are considered; ultimately the article argues that a feminist teacher cannot simply ‘lay aside’ feminist pedagogy for a guest lecture, but that some compromises will be necessary in adapting practice for this type of teaching

Non-Commercial Homestay;an exploration of encounters and experiences of guests visiting the UK.

This paper explores the experiences of tourists travelling within the UK using hosts through the web based non commercial homestay organisations. The author, as a host explores the guests’ expectations, experiences and views on hospitality within this unique but growing form of accommodation. In order to ascertain the benefits to the guest, within non commercial homestay it is necessary to review the concept of value for the guest, explore the different forms or dimensions of hospitality, and ascertain levels of reciprocity within the host guest relationship. The paper shows that reciprocity within this hospitality context is asymmetrical and that the sacrifice made by the guest is to the benefit of the host be it non financial

Theoretical Aspects of Molecular Recognition

Molecular recognition is a key process in non-covalent interactions, which determines, among others, host-guest complexation, drug action and protein-protein interaction. A simple and attractive formulation is the lock-and-key analogy defining the host as a lock accommodating the guest as a key. We stress three major aspects of molecular recognition, determining both complementarity between host and guest and similarity within a group of guest molecules. These aspects are: steric, i.e. maximization of close contacts, electrostatic, i.e. maximization of electrostatic attraction between host and guest, as well as hydrophobic, i.e. avoiding hydrophobic hydration, which can be reached by the maximization of apolar contacts between interacting molecules. Some examples are presented from our laboratory: the complexes of acylaminoacyl peptidase with small peptides, the effect of heparin binding on inhibitory potency of C1- inhibitor as well as small-molecule ligand binding to prolyl oligopeptidase and calmodulin

Fast Diffusion of Long Guest Rods in a Lamellar Phase of Short Host Particles

We investigate the dynamic behavior of long guest rod-like particles immersed in liquid crystalline phases formed by shorter host rods, tracking both guest and host particles by fluorescence microscopy. Counter-intuitively, we evidence that long rods diffuse faster than short rods forming the one-dimensional ordered smectic-A phase. This results from the larger and non-commensurate size of the guest particles as compared to the wavelength of the energy landscape set by the lamellar stack of liquid slabs. The long guest particles are also shown to be still mobile in the crystalline smectic-B phase, as they generate their own voids in the adjacent layers.Comment: 5 pages, 4 figures, Accepted in Phys. Rev. Let

How to Make Guest Worker Visas Work

President Obama and a bipartisan group of eight senators have begun to push for immigration reform. Speaker of the House John Boehner (R-OH) likewise said he supports an immigration overhaul as a "top priority" for 2013. The Texas Republican Party even called for an expanded and effective guest worker visa program to link American employers with skilled and low-skilled foreign workers. The three components of politically feasible immigration reform are legalization for some unauthorized immigrants, border and workplace enforcement to impede the entry and hiring of unauthorized immigrants, and increased numbers of guest workers and legal immigrants. The costs and benefits of legalization, security, and employee verification have been debated elsewhere in detail but the costs and benefits of guest worker visas and how to create them have not been similarly explored. An expanded and lightly regulated guest worker visa program is an essential part of any immigration reform proposal. A guest worker visa program should efficiently link foreign workers with American employers and function with a minimum of government interference. Market forces as well as security, criminal, and health concerns should be the factors that determine which workers acquire visas. A successful guest worker visa would also divert most unauthorized immigration into the legal system, shrink the informal economy, be easily enforceable, support economic growth in the United States, and narrow the government's role in immigration. Below are numerous suggestions that would achieve such reform and expand America's current guest worker visa programs

Supramolecular assembly of cucurbit[6]uril and N-butyl-4-pyrrolidinopyridine

The nature of the supramolecular host-guest complex involving 4-pyrrolidinopyridine (BuPC4) and cucurbit[6]uril (Q[6]) has been investigated by NMR and UV spectroscopy, MALDI-TOF mass spectrometry, X-ray crystallography and isothermal titration calorimetry (ITC). The results revealed that the alkyl chain of the guest BuPC4 is located inside the cavity of the Q[6] host, whereas the other section of the BuPC4 guest remains outside of the portal

A Most Unusual Zeolite Templating: Cage to Cage Connection of One Guest Molecule

An unusual case of a diquaternary ammonium dication, with large bulky end groups built from the tropane moiety and connected by a C4 methylene chain, is found to reside in zeolite SSZ-35 (STF). The structure of the guest/host product is such that the tropane bicylic entities reside in the shallow cavities of the cages of the STF structure and the C4 methylene chain runs through the 10-ring (~5.5 Å) window that connects the cages. This is a most unusual (and energy-intensive) templating of a zeolite structure with the guest molecule spanning two unit cells. The unusual result was found by single crystal studies with the addition of the use of the SQUEEZE program to show a consistent fit for the guest molecule following from measured electron densities in the crystal structure work. These analyses were followed with MAS NMR studies to confirm the integrity of the diquaternary guest molecule in the host sieve. A few comparative diquaternary guest molecules in MFI zeolite are also studied