A low phase noise CMOS complementary cross-coupled LC-tank voltage-controlled oscillator (VCO), implemented with TSMC 0.18μm 1P6M CMOS technology, is presented. Double pair pseudoresistance transistors biased by the tapped center of the inductor are utilized to reduce the DC bias current. The circuit consumes 1.55 mA from a 1.5 V supply voltage which saves up to 52.4% power, compared with the c...

Strategies aimed at invoking synaptic plasticity have therapeutic potential for several neurological conditions. The human retinal synaptic disease X-linked retinoschisis (XLRS) is characterized by impaired visual signal transmission through the retina and progressive visual acuity loss, and mice lacking retinoschisin (RS1) recapitulate human disease. Here, we demonstrate that restoration of RS...

In this paper, we present a novel approach for image retrieval based on extraction of low level features using techniques such as Directional Binary Code (DBC), Haar Wavelet transform and Histogram of Oriented Gradients (HOG). The DBC texture descriptor captures the spatial relationship between any pair of neighbourhood pixels in a local region along a given direction, while Local Binary Patter...

Gels of low molecular weight gelators (LMWGs) are self-assembled, thermoreversible, viscoelastic materials which can also be rendered sensitive to light, pH or chemical substances by simple chemical modifications. In addition, the ability of some of these LMWGs to gelate water (hydrogelators) makes these gels interesting, new materials for drug delivery applications. In this paper, for the firs...

A design method for an L-band frequency quadrupler with composite right/left-handed transmission line is proposed. The left-handed transmission line in the proposed frequency quadrupler suppresses the fundamental component ( f0), while the composite right/left-handed l/4 open stub reduces unwanted higher-order harmonics. From the experimental results, unwanted harmonics are suppressed to achiev...

A dual-band monolithic voltage-controlled oscillator (VCO) has been fabricated by using the 0.18 lm 1P6M CMOS technologies. The switching transistors concept used in the tank circuit realizes the dual-band VCO operation. In order to reduce the phase noise, the pMOS transistors were used in the VCO design. The dual-band VCO demonstrates the phase noise (100 kHz offset) of )98 dBc/Hz at 2.6 GHz a...

This paper deals with maximizing the spurious free dynamic range (SFDR), while minimizing the power consumption of sine-wave approximation circuits used in direct digital frequency synthesizers (DDFSs). A novel 16-segment parabolic approximation is detailed and compared with other recent solutions. The circuit complexity (as number of transistors) is comparable to that of ultra low-power 16-seg...

The d-c.e. (difference of c.e.) and dbc (divergence bounded computable) reals are two important subclasses of ∆2-reals which have very interesting computability-theoretical as well as very nice analytical properties. Recently, Downey, Wu and Zheng [2] have shown by a double witness technique that not every ∆2-Turing degree contains a d-c.e. real. In this paper we show that the classes of Turing...

Obese and diabetic individuals are at increased risk for impairments in diastolic relaxation and heart failure with preserved ejection fraction. The impairments in diastolic relaxation are especially pronounced in obese and diabetic women and predict future cardiovascular disease (CVD) events in this population. Recent clinical data suggest sodium glucose transporter-2 (SGLT2) inhibition reduce...

This study examined the psychometric properties of Norwegian version Developmental Behavior Checklist – Parent (DBC-P) in an intellectual and developmental disabilities (IDD) sample children adolescents (N = 168). Internal consistency was adequate to excellent for all scales (Cronbach’s alpha ranged between .70–.96). The DBC-P showed meaningful overlap with differentiation from Aberrant Checkli...