Increased dietary intake of choline early in life improves performance of adult rats on memory tasks and prevents their age-related memory decline. Because neurogenesis in the adult hippocampus also declines with age, we investigated whether prenatal choline availability affects hippocampal neurogenesis in adult Sprague-Dawley rats and modifies their neurogenic response to environmental stimula...

Signaling lymphocytic activation molecule (SLAM)-associated protein (SAP) mutations in X-linked lymphoproliferative disease (XLP) lead to defective NKT cell development and impaired humoral immunity. Because of the redundancy of SLAM family receptors (SFRs) and the complexity of SAP actions, how SFRs and SAP mediate these processes remains elusive. Here, we examined NKT cell development and hum...

We have quantified the average filamentarity of the galaxy distribution in seven nearly two dimensional strips from the SDSS DR5 using a volume limited sample in the absolute magnitude range −21 ≤ Mr ≤ −20. The average filamentarity of star forming (SF) galaxies, which are predominantly blue, is found to be more than that of other galaxies which are predominantly red. This difference is possibl...

We combine Spitzer 24 μm observations with data from the COMBO-17 survey for ∼15,000 0.2 < z ≤ 1 galaxies to determine how the average star formation rates (SFR) have evolved for galaxy sub-populations of different stellar masses. In the determination of we consider both the ultraviolet (UV) and the infrared (IR) luminosities, and account for the contributions of galaxies that are individ...

3B şekil oluşturulma sürecinde herhangi ek donanım gerektirmeyen Odaktan Şekil (Shape From Focus - SFF) en çok tercih edilen stratejilerdendir. SFF stratejisi, oluşturma farklı odaklı 2B görüntü serisi kullanmakta ve üç temel aşamadan oluşmaktadır: (1) Farklı serisinin elde edilmesi, (2) Görüntü piksellerinin odaklama değerlerinin hesaplanması (3) Maksimum pikselin seçilmesi. Yüksek doğruluk da...

This paper investigates an adaptive coordinated control problem of spacecraft formation flying (SFF) system subject to uncertain mass and external perturbations. First, a general unified structure is proposed represent the adjustable performance functions like exponentially appointed-time convergent ones. Then, controller developed based on two-layer envelope characterize transient steady-state...

We study the star formation rate (SFR) as a function of environment for UV-selected Lyman break galaxies (LBGs) at redshift 3. From deep (μI,AB(sky) ≃ 27.6) UBV I KPNO 4-m/MOSAIC images, covering a total of 0.90 deg, we select 334 LBGs in slices 100h Mpc (co-moving) deep spanning the redshift range 2.9 < z < 3.4 based on Bayesian photometric redshifts that include the I magnitude as a prior. Th...

In this paper we focus our studies on LTE, which is a development under 3G technologies Release-8 of the 3GPP Project plan and is considered a baseline and step towards the LTE-Advanced. In orthogonal frequency division multiplexing networks, inter-cell interference results in poor performance, especially universal frequency reuse scheme has already been used. Soft Frequency Reuse (SFR) scheme,...