Delicate urbanism in context: Settlement Nucleation in pre-Roman Germany

This volume brings together the latest understanding of pre-Roman German urbanism from seven German scholars, accompanied by a contextualizing commentary from five further scholars, based in the UK and America. The result is a dissection of the different dimensions of a delicate urbanism that compares and contrasts with other examples of sometimes more robust urbanism in other parts of first millennium bc Europe. The papers concentrate on examples in Baden-Württemberg and Bavaria, but range as far as Rome and Athens in making comparisons. The analysis takes both a quantitative and qualitative approach, investigating both the first Hallstatt (sixth/fifth centuries bc) and second La Tène (last few centuries bc) cycles of nucleation, assessing rural settlement and burial, as well as the underlying forces of ritual and production.The DAAD Cambridge Symposium and McDonald Institute for Archaeological Researc

Tra Perugia e Gubbio: archeologia di un paesaggio di frontiera

Resoconto preliminare di un progetto di ricerca di archeologia del paesaggio tra Perugia e Gubbio svolto in collaborazione tra l'Università di Roma "Tor Vergata" e l'Università di Cambridge, Department of Archaeology.This paper describes some preliminary data from a research project concerning the area of Montelabate (Comune di Perugia) which was started by the university of Rome Tor Vergata in 2008. Since 2010 the project has continued as a joint collaboration with the university of Cambridge. The project aims to reconstruct the patterns of settlements of the frontier territory between Perugia and Gubbio from the prehistory to the modern age

Effect of Usury Laws on Home Ownership Needs

In this paper we examine usury laws which thwart the thrift industry, particularly savings and loan associations, from entering fully into the needed home financing picture of the 1970\u27s. If there is virtue in owning a home, be it a normal house, mobile home, condominium or a 99-year leasehold, (and the very basis of American life suggests that there is), and if the predicted housing boom is actually to occur, substantial changes should be made in laws which frustrate home financing

Effect of Usury Laws on Home Ownership Needs

In this paper we examine usury laws which thwart the thrift industry, particularly savings and loan associations, from entering fully into the needed home financing picture of the 1970\u27s. If there is virtue in owning a home, be it a normal house, mobile home, condominium or a 99-year leasehold, (and the very basis of American life suggests that there is), and if the predicted housing boom is actually to occur, substantial changes should be made in laws which frustrate home financing

Light enhancement in surface-enhanced raman scattering at oblique incidence

Surface enhanced Raman scattering (SERS) measurements have been carried out at different focusing conditions using objective lenses of different numerical apertures. The experimentally observed dependence of SERS intensity of thiophenol-coated Ag nano-islands shows a close-to-linear scaling with the collection aperture. The linear relationship breaks down for large numerical apertures, which suggests that the scattering is anisotropic. Numerical simulations of realistically shaped Ag nano-islands were carried out, and the spatial distribution of hot-spots has been revealed at different heights near the nano-islands. Local field enhancements of up to 100 times were estimated. The simulation also suggests an explanation for the anisotropy in the scattering observed for larger numerical aperture objectives. This appears to be due to a reduction in the local field enhancement as the electric field vector component in the plane of the shallow metal islands reduces at larger angles of incidence

Glycophenotype of prostatic carcinomas.

The factors that affect the progression of prostatic carcinoma are poorly understood, but it is known that carbohydrate antigens on the tumour cell surface play a role in the transforming and metastatic processes. The present report aimed to perform a comparative, lectin-histochemical study of benign and carcinomatous prostates, using a battery of lectins, in combination with monoclonal antibodies against Lewis antigens, and a semi quantitative study, to investigate the changes in glycosylation patterns that occur in prostatic carcinoma. Blocks from 27 necropsy cases of prostatic carcinoma were sectioned and stained with H+E, fifteen biotinylated lectins chosen to probe for a wide range of oligosaccharide sequences within several categories of glycoprotein glycans, using a lectin-biotin avidin-peroxidase method, and monoclonal antibodies against Lewisa, sialyl Lewisa and sialyl Lewisx antigens. The glycophenotype of prostatic carcinoma differed from that of the noncancerous prostate in revealing more intense staining with the following lectins (AAA, UEA-1, DBA, WFA, VVA, HPA, BSA-1B4, MPA, ECA, AHA, and CTA), while the binding patterns of (GNA and NPA) were almost similar in both prostatic carcinoma and the noncancerous prostate. Lewis antigens are found to be expressed in prostatic carcinomas but not in the noncancerous prostate. The observations of this study suggest that the gylcophenotype of transformed prostatic cells was modified. It showed a moderate increase in, and changing patterns of, fucosylation and galactosylation, increased branching of side chains and sharp rise in 2 deoxy, 2 acetamido galactosylation and masking process by sialylation, especially by Îą2-3 and Îą2-6 linkages. All these changes in the glycosylation pattern of the transformed prostatic cells were observed on O-glycans, no changes were observed on N-glycans

Oligorotaxane radicals under orders

A strategy for creating foldameric oligorotaxanes composed of only positively charged components is reported. Threadlike components-namely oligoviologens-in which different numbers of 4,4'-bipyridinium (BIPY(2+)) subunits are linked by p-xylylene bridges, are shown to be capable of being threaded by cyclobis(paraquat-p-phenylene) (CBPQT(4+)) rings following the introduction of radical-pairing interactions under reducing conditions. UV/vis/NIR spectroscopic and electrochemical investigations suggest that the reduced oligopseudorotaxanes fold into highly ordered secondary structures as a result of the formation of BIPY(\u2022+) radical cation pairs. Furthermore, by installing bulky stoppers at each end of the oligopseudorotaxanes by means of Cu-free alkyne-azide cycloadditions, their analogous oligorotaxanes, which retain the same stoichiometries as their progenitors, can be prepared. Solution-state studies of the oligorotaxanes indicate that their mechanically interlocked structures lead to the enforced interactions between the dumbbell and ring components, allowing them to fold (contract) in their reduced states and unfold (expand) in their fully oxidized states as a result of Coulombic repulsions. This electrochemically controlled reversible folding and unfolding process, during which the oligorotaxanes experience length contractions and expansions, is reminiscent of the mechanisms of actuation associated with muscle fibers