Standard approaches to measuring the welfare gains from variety take variety as exogenous to consumers. Empirically we observe an Engel curve for variety, with richer consumers purchasing a larger set of varieties than poor ones. I present a tractable model for analyzing the welfare gains from variety in the presence of this non-homotheticity. The model generates variety Engel curves through di...

EGFL7 ligates avb3 integrin to enhance vessel formation Iva Nikolić, Nevenka Dudvarski Stanković, Frank Bicker, Jeannette Meister, Helene Braun, Khader Awwad, Jan Baumgart, Kirsten Simon, Serge C. Thal, Chinmoy Patra, Patrick N. Harter, Karl H. Plate, Felix B. Engel, Stefanie Dimmeler, Johannes A. Eble, Michel Mittelbronn, Michael K. Schäfer, Benno Jungblut, Emmanouil Chavakis, Ingrid Fleming, ...

An Engel structure is a maximally non-integrable field of two-planes tangent to a four-manifold. Any two Engel structures are locally diffeomorphic. We investigate the deformation space of Engel structures obtained by deforming certain canonical Engel structures on four-manifolds with boundary. When the manifold is RP 3 × I where I is a closed interval, we show that this deformation space conta...

The first fossil nemonychid (Nemonychidae) in Burmese amber, belonging to the subfamily Rhinorhynchinae, is described and figured as Burmonyx zigrasi Davis & Engel, gen. n. and sp. n. While this specimen also comprises the first definitive record of the subfamily in the Asian continent, other compression fossils exist at least from the Yixian Formation of China and the Karatau site of Kazakhsta...

OBJECT The authors conducted a study to determine seizure-related outcomes in a group of pediatric patients with pathologically proven focal cortical dysplasia (FCD) treated by focal cortical resections and multiple subpial transections (MSTs). METHODS The authors performed a retrospective review of pediatric patients in whom surgery was conducted to treat medically refractory epilepsy second...

OBJECT Occipital lobe epilepsy (OLE) accounts for a small percentage of extratemporal epilepsies and only few and mostly small patient series have been reported. Preoperative findings, surgical strategies, histopathological bases, and postoperative outcomes for OLE remain to be elucidated. METHODS A group of 54 patients with occipital lobe involvement were identified from a prospective epilep...

In this paper, we consider the Rumin complex on homogenenous nilpotent Lie groups. We present an alternative construction to classical one Carnot groups using ideas from parabolic geometry. also give explicit computations for Engel group with approach.

References 1. Wilbur AK, Engel GA, Rompis A, A Putra IG, Lee BP, Aggimarangsee N, et al. From the mouths of monkeys: detection of Mycobacterium tuberculosis complex DNA from buccal swabs of synanthropic macaques. Am J Primatol. 2012;74:676–86. http://dx.doi.org/10.1002/ajp.22022 2. Lin PL, Pawar S, Myers A, Pegu A, Fuhrman C, Reinhart TA, et al. Early events in Mycobacterium tuberculosis infect...

A new species of the cleptoparasitic bee genus Microsphecodes Eickwort and Stage (Halictinae: Halictini) is described and figured from a male and female collected in Jamaica. Microsphecodes xaymacensis Engel, sp. n., is distinguished from its congeners on the basis of integumental coloration and sculpturing, and form of the male pygidial plate and genitalia.