Effective methodologies for efficient preparation of semicarbazones from aldehydes or ketones via milling and the subsequent regeneration of the parent carbonyls by gaseous nitrogen dioxide are described under solid-solid and gas-solid reaction conditions, respectively. These methods are fast, simple and environmentally benign which do not require the use of any auxiliaries such as catalyst...

The evidential meaning traditionally attributed to modal auxiliaries is conveyed in Italian and Greek by complex constructions clustering both modal and aspectual features. The evidential reading of Italian and Greek modal auxiliaries, indeed, is only licenced when the modals take as complements stative, progressive, habitual or resultative subordinates. A feature of aspectual incompleteness of...

Chirality is an inevitable property of our Universe, having enormous impact in different fields, ranging from nuclear physics and astronomy to living organisms human beings [...]

I nvisalign* treatment of dental Class II malocclusions in adolescents and young adults is not commonly attempted, even by orthodontists who have significant experience with aligners. Furthermore, the need for auxiliaries such as Class II correctors or elastics makes the technique less appealing to many clinicians. As this article shows, however, there are other successful ways to treat Class I...

This paper focuses on a design-consistent regression estimator in which the “auxiliaries” are estimated from a stratified cluster sample and the regression coefficients from an arbitrary subsample of the original sample. The reweighted expansion estimator described in Stukel and Kott (1997) is an example of such an estimator. Assuming that the target variable is a linear function of the auxilia...

This study about the productivity and near-synonymy of inchoative construction in Peninsular Spanish reveals that at least 25 verbs can enter auxiliary slot. These auxiliaries are recruited from six semantic domains: (1) superlexical inherent verbs, (2) put (3) throw (4) movement (5) manual manipulation (6) destruction. confirms a hierarchical cluster analysis is suited to investigate semantica...

Diastereoselective radical coupling was achieved with chiral auxiliaries. The radicals were generated by anodic decarboxylation of five malonic acid derivatives. These were prepared from benzyl malonates and four menthol auxiliaries. Coelectrolyses with 3,3-dimethylbutanoic acid in methanol at platinum electrodes in an undivided cell afforded hetero-coupling products in 22-69% yield with a dias...

The aim of this paper is to compare the behaviour of Polish and Romance pronominal clitics in tense auxiliary constructions and to account for Polish facts. First, we present the system of Polish auxiliaries, briefly comparing it to Romance. Then, we discuss clitic climbing (CC), the phenomenon well-known in Romance. We contrast Polish CC with CC in Italian and French. Finally, we present a for...