OBJECTIVE To review the presentation of hyperinsulinemic hypoglycemia of the infancy (HHI), its treatment and histology in Brazilian pediatric endocrinology sections. MATERIALS AND METHOD The protocol analyzed data of birth, laboratory results, treatment, surgery, and pancreas histology. RESULTS Twenty-five cases of HHI from six centers were analyzed: 15 male, 3/25 born by vaginal delivery....

Risk analysis depends to a large extent on the type of data. Aggregate data can serve as a useful surrogate for individual data. However, in practice, there is uncertainty on the reliability and adequacy of aggregated data. In this paper we estimate the Herfindahl-Hirschman Index (HHI) for a loan portfolio using both aggregate data and individual data. Then, we compare both estimates to assess ...

This paper focuses on some characteristics of disfluencies in human-human (HHI) and human-computer (HCI) interaction corpora to outline similarities and differences. The main variables studied are disfluency rates and prosodic features. Structured, table-like input increases the disfluency rate in HCI and decreases it in HHI. Direct exposure (visibility) to the interface also increases the rate...

Thresholds defined on the level and change in the HHI (HerfindahlHirschmann Index) applied to market shares seem to be the main instrument to select notified mergers for investigation in both the EU and US. We question the use of such a selection rule in differentiated products industries. We propose the use of a structural approach to apply HHI thresholds based on profit shares rather than mar...

We study the degrees of bi-hyperhyperimmune (bi-hhi) sets. Our main result characterizes these degrees as those that compute a function that is not dominated by any ∆2 function, and equivalently, those that compute a weak 2-generic. These characterizations imply that the collection of bi-hhi Turing degrees is closed upwards.

In horizontal mergers, concentration is often measured with the HirschmannHerfindahl Index (HHI). This index yields the price-cost margins in Cournot competition. In many modern merger cases, both buyers and sellers have market power, and indeed, the buyers and sellers may be the same set of firms. In such cases, the HHI is inapplicable. We develop an alternative theory that has similar data re...