Background: It seems that in vaginal delivery, serum leptin level increases as a cortisol-dependent factor due to the stress of the embryo. Studies have shown that if the level of serum leptin is low, the risk of chronic metabolic diseases, cardiovascular diseases, hypertension, and obesity in the mother and the baby will increase. Objectives: The aim of this study was to determine the relatio...

Motivated by recent innovations in service delivery such as ride-sharing services and work-from-home call centers, we study capacity management when workers self-schedule. The service provider seeks to maximize its profit (revenue from served customers minus capacity costs) when it controls capacity only indirectly. Agents choose when to work based on the compensation offered and their individu...

the field of vaccinology provides excellent promises to control different infectious and non-infectious diseases. genetic immunization as a new tool in this area by using naked dna has been shown to induce humoral as well as cellular immune responses with high efficiency. this demonstrates the enormous potential of this strategy for vaccination purposes. dna vaccines have been widely used to de...

Recently we described (Electrophoresis 5: 143-147, 1984) a new device for producing density and solute gradients, involving computer-controlled coöperation of stepmotor-driven high-precision burettes, the purpose being to substantially improve reproducibility, flexibility, and documentation of gradients used in gels and in other applications in biochemistry. Here we present the functional princ...

It is becoming increasingly apparent that the vast blue expanse of ocean—the last frontier—is not as inexhaustible as it once seemed. While we have yet to fully explore the reaches of the sea, technology has granted humans the ability to harvest its wealth. We can now fi sh anywhere, at any depth, for any species. Like the American frontier range’s bison and wolf populations brought to the brin...

We perform molecular dynamics simulations to demonstrate that when a nanodroplet is confined inside a carbon nanotube (CNT), unidirectional motion can be created by a nonzero surface energy gradient. It is found that the water nanodroplet moves along the direction of increasing surface energy. The transportation efficiency of the water nanodroplet is found to be dependent on the surface energy ...