Study of the effect of higher-order dispersions on photoionisation induced by ultrafast laser pulses applying a classical theoretical method.

We investigated the effect of higher order dispersion on ultrafast photoionisation with Classical Trajectory Monte Carlo (CTMC) method for hydrogen and krypton atoms. In our calculations we used linearly polarised ultrashort 7 fs laser pulses, [Formula: see text] intensity, and a central wavelength of 800 nm. Our results show that electrons with the highest kinetic energies are obtained with transform limited (TL) pulses.

Role of core needle biopsy in the treatment of radial scar.

Invasive tumor or ductal carcinoma in situ occur in radial sclerosing lesions in one third of the cases therefore, surgical excision is mandatory. Forty-five patients with radial scar morphology were examined. Ultrasound guided fine-needle aspiration biopsy (FNAB) and core biopsy (CB) were performed in all cases.

Estrogen receptor negative and progesterone receptor positive breast carcinomas-how frequent are they?

Estrogen receptor (ER) testing has become an important part of breast cancer reporting as the ER status is a predictor of hormonal treatment efficacy. Progesteron receptors (PR) are often tested in parallel, and the best response to hormonal manipulations can be expected in tumors positive for both receptors. The existence of breast cancers with an ER negative and PR positive phenotype is controversial.

Sexual dimorphism of kisspeptin and neurokinin B immunoreactive neurons in the infundibular nucleus of aged men and women.

The secretory output of gonadotropin-releasing hormone (GnRH) neurons is critically influenced by peptidergic neurons synthesizing kisspeptins (KP) and neurokinin B (NKB) in the hypothalamic infundibular nucleus (Inf). These cells mediate negative feedback effects of sex steroids on the reproductive axis. While negative feedback is lost in postmenopausal women, it is partly preserved by the sustained testosterone secretion in aged men.

Triple coincidence experiment to explore the two-electron continuum states of the projectile resulting from mutual ionization in 100-keV He0 + He collisions.

The existence of the two-electron cusp in atomic collisions, i.e., the enhanced emission of two electrons in the forward direction with velocities equal to that of the projectile, has been investigated experimentally.

TASK-3 immunoreactivity shows differential distribution in the human gastrointestinal tract.

The presence and distribution of TASK-3 immunopositivity (a channel with potential oncogenic significance) was investigated in the human gastrointestinal system. The immunohistochemical reactions were performed with two commercially available polyclonal antibodies, targeting different epitopes of the channel protein. Experiments conducted on frozen and formalin-fixed samples indicated that the application of a suitable antigen retrieval (AR) technique was essential to produce consistent, strong and reproducible TASK-3-specific immunolabelling of the formalin-fixed tissue.