We are concerned with the optimal investment and consumption in a continuous-time setting for a constant absolute risk aversion (CARA) investor who faces proportional transaction costs and finite horizon. This is a singular stochastic control problem and the associated value function is governed by a variational inequality equation with gradient constraints. In terms of a novel approach develop...

Dysfunctional spermatozoa maturation is the main reason for the decrease in sperm motility and morphology in infertile men. Ejaculated spermatozoa from healthy fertile men were separated into four fractions using three-layer density gradient. Proteins were extracted and bands were digested on a LTQ-Orbitrap Elite hybrid mass spectrometer system. Functional annotations of proteins were obtained ...

Gustavo Dotti, Julio Oliva, and Ricardo Troncoso Facultad de Matemática, Astronomı́a y F́ısica, Universidad Nacional de Córdoba, Ciudad Universitaria, (5000) Córdoba, Argentina. Departamento de F́ısica, Universidad de Concepción, Casilla, 160-C, Concepción, Chile. Centro de Estudios Cient́ıficos (CECS), Casilla 1469, Valdivia, Chile. Abstract A static wormhole solution for gravity in vacuum is foun...

OBJECTIVE To evaluate the benefits of paramedic practitioners assessing and, when possible, treating older people in the community after minor injury or illness. Paramedic practitioners have been trained with extended skills to assess, treat, and discharge older patients with minor acute conditions in the community. DESIGN Cluster randomised controlled trial involving 56 clusters. Weeks were ...

Nerve injury leads to a neuropathic pain state that results from central sensitization. This phenomenom is mediated by NMDA receptors and may involve the production of nitric oxide (NO). In this study, we investigated the expression of the neuronal isoform of NO synthase (nNOS) in the spinal cord of 3-month-old male, Wistar rats after sciatic nerve transection (SNT). Our attention was focused o...

Bird eggs are commonly used in contaminant monitoring programs and toxicological risk assessments, but intraclutch variation and sampling methodology could influence interpretability. The authors examined the influence of egg-laying sequence on egg mercury concentrations and burdens in American avocets, black-necked stilts, and Forster's terns. The average decline in mercury concentrations betw...

We recently reported that forced overexpression of the transcription factor E2F-1 in human HT-1080 fibrosarcoma cells resulted in corresponding high levels of thymidylate synthase (TS) and resistance to 5-fluoropyrimidines (D. Banerjee et al., Cancer Res., 58: 4292-4296, 1998). Because colorectal metastasis to the lung has higher TS levels than liver metastasis and is less responsive to treatme...

MbeA is a 60 kDa protein encoded by plasmid ColE1. It plays a key role in conjugative mobilization. MbeA*, a slightly truncated version of MbeA, was purified for in vitro analysis. MbeA* catalysed DNA cleavage and strand-transfer reactions using oligonucleotides embracing the ColE1 nic site, which was mapped to 5'-(1469)CTGG/CTTA(1462)-3'. Thus MbeA is the relaxase for ColE1 conjugal mobilizati...

The cryptocurrency market surpassed the barrier of $100 billion market capitalization in June 2017, after months of steady growth. Despite its increasing relevance in the financial world, a comprehensive analysis of the whole system is still lacking, as most studies have focused exclusively on the behaviour of one (Bitcoin) or few cryptocurrencies. Here, we consider the history of the entire ma...

[PDF] [Full Text] [Abstract] , January 4, 2006; 26 (1): 138-142. J. Neurosci. P. S. Khayat, H. Spekreijse and P. R. Roelfsema Attention Lights Up New Object Representations before the Old Ones Fade Away [PDF] [Full Text] [Abstract] , August 1, 2006; 96 (2): 941-945. J Neurophysiol J. Silvanto, N. Lavie and V. Walsh Cortex Stimulation of the Human Frontal Eye Fields Modulates Sensitivity of ...