The enigma of frequency-dependent selection.

The Luteal Phase after GnRHa Trigger-Understanding An Enigma

A New Approach to Project Risk Responses Selection with Inter-dependent Risks

Risks are natural and inherent characteristics of major projects. Risks are usually considered independently in analysis of risk responses. However, most risks are dependent on each other and dependent risks are rare in the real world. This paper proposes a model for proper risk response selection from the responses portfolio with the purpose of optimization of defined criteria for projects. Th...

Supplier Selection in Three Echelon Supply Chain & Vendor Managed Inventory Model Under Price Dependent Demand Condition

This paper, considers the supplier selection in three echelon supply chain with Vendor Managed Inventory (VMI) strategy under price dependent demand condition. As there is a lack of study on the supplier selection in VMI literature, this paper presents a VMI model in supply chain including multi supplier, one distributer and multi retailer that distributer selects suppliers. Two class models (t...

Diabetes mellitus: a "thrifty" genotype rendered detrimental by "progress"?

FOR THE POPULATION GENETICIST, diabetes mellitus has long presented an enigma. Here is a relatively frequent disease, often interfering with reproduction by virtue of an onset during the reproductive or even pre-reproductive years, with a well-defined genetic basis, perhaps as simple in many families as a single recessive or incompletely recessive gene (cf. Allan, 1933; Pincus and White, 1933, ...

The Enigma of Human T-Cell Leukemia Virus Type-1 (HTLV-1) Infection in Iran

Human T-cell lymphotropic virus type-I (HTLV-I) was the first human retrovirus associated with malignancy.  The prevalence of HTLV-I infection varies significantly in different regions of the world.  In this study, the prevalence of HTLV-I infection among ethnic Jews living in Shiraz, South of Iran, was investigated. 286 blood samples were obtained.  HTLV-1 antibody assay on serum samples was d...