– The theoretical analysis gives an overview of the functioning of DDS, especially with respect to noise and spurs. Different spur reduction techniques are studied in detail. Four ICs, which were the circuit implementations of the DDS, were designed. One programmable logic device implementation of the CORDIC based quadrature amplitude modulation (QAM) modulator was designed with a separate D/A ...

The degeneracy of topological distance sum (DS) and distance degree sequence (DDS) of small fullerenes is analyzed. The degeneracy of the two topological descriptors is determined by comparing the topological equivalence classes of the fullerene atoms with the DS and DDS classes, respectively. On the basis of DS and DDS degenerated fullerene graphs and by using two previously demonstrated theor...

Pareto archived dynamically dimensioned search (PA-DDS) has been modified to solve combinatorial multi-objective optimization problems. This new PA-DDS algorithm uses discrete-DDS as a search engine and archives all non-dominated solutions during the search. PA-DDS is also hybridized by a general discrete local search strategy to improve its performance near the end of the search. PA-DDS inheri...

In past few decades, scientists have made tremendous advancement in the field of drug delivery systems (DDS), through transdermal pathway, as the skin represents a ready and large surface area for delivering drugs. Efforts are in progress to design efficient transdermal DDS that support sustained drug release at the targeted area for longer duration in the recommended therapeutic window without...

OBJECTIVE (S) This study examined the association between maternal and child dietary diversity in a population-based national sample in Ghana. METHODS The data for this analysis are from the 2008 Ghana Demographic and Health Survey. We used data obtained from 1187 dyads comprised of mothers' ages 15-49 and their youngest child (ages 6-36 months). Maternal and child dietary diversity scores (D...

飲む・吸うといった方法により粘膜組織を介してワクチン接種を行う「粘膜ワクチン」が注目されている。粘膜ワクチンの実用化には、デリバリーシステムやアジュバントの応用が必要不可欠である。ポリマーやナノゲル、リポソーム、微生物成分などのデリバリーシステムを用いることで、ワクチン抗原の粘膜組織への送達や滞留性が向上し、ワクチン効果を高めることができる。さらには、デリバリー機能に加えて、抗原提示細胞の活性化やT細胞応答の誘導制御などの免疫応答をコントロールできるアジュバント機能を付与することで、より有効性の高いワクチンの開発も試みられている。本稿では、各種ワクチンの対象に適した機能を付与できる次世代型のデリバリーシステムの開発を紹介したい。

magnetic resonance imaging and computed tomography Shoko Gamoh, DDS, PhD, Yukako Nakashima, DDS, Hironori Akiyama, DDS, PhD, Kaname Tsuji, DDS, PhD, Koji Yamada, DDS, PhD, Motoyuki Suzuki, MD, PhD, Shosuke Morita, DDS, PhD, and Kimishige Shimizutani, DDS, PhD Osaka Dental University and Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan (Oral Surg Oral Med Oral Pathol Ora...

In this paper an efficient approach is present to design custom waveform generator based on DDS with low phase noise and high switching speed for military communication applications. It can generate custom signals with different modulations whose amplitude, frequency or phase are controlled by the description words given from an external computer. DDS is a frequency synthesizer which can genera...