introduction quality control is an important phenomenon in nuclear medicine imaging. a jaszczak spect phantom provides consistent performance information for any spect or pet system. this article describes the simulation of a jaszczak phantom and creating an executable phantom file for comparing assessment of spect cameras using simind monte carlo simulation program which is well-established fo...

As a trilogy, this first paper along with the authors' two companion articles introduces alternate approaches to standard $R$-matrix parametrization of nuclear cross sections. The authors present evidence so-called shadow poles in theory for ${}^{134}$Xe. number and location depends upon how one continues operators complex wave numbers. also establish new pole sections, called $w\phantom{\rule{...

In this paper and an accompanying submission to $P\phantom{\rule{0}{0ex}}h\phantom{\rule{0}{0ex}}y\phantom{\rule{0}{0ex}}s\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}a\phantom{\rule{0}{0ex}}l$ $R\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}v\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}w$ $L\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}t\ph...

objective: personality is the most important infrastructure factor in addiction, and substance abusers have certain personal weaknesses that make them vulnerable to addiction. this study examined the role of sensation-seeking and coping strategies in predicting drug addiction in high school students.  methods: this study is a descriptive–correlational research. multi-stage cluster sampling was ...

objective: the present study was carried out to study the relationship between sensation seeking and social skills in two groups of school age patients down-syndrome (ds) and autism disorder (ds).  methods: this is a descriptive-analytic and correlation study in which all participants were of primary school age (10 to 13 years) with down-syndrome and autism disorder of autism spectrum disorder ...

background & aim: although socio-economic variables are widely used for describing the tourist's behavior, but increasing awareness is evident in current researches that personality characteristics might also be useful for that purpose. in this regard, the present study compares the personality characteristics of iranian tourists with those of non tourists. method and materials: in a causal com...

Tunnel coupling is a key parameter in coupled semiconductor quantum dots, and crucial ingredient various device applications, such as exchange gates spin shuttling information processing. A widely used charge-sensing technique to extract the tunnel of double dot accounts for only ground orbital state each dot, but authors show that Si valley-orbit must be included analysis. With their more comp...

Key applications of quantum computing, including error correction, rely critically on the capability to measure (read out) state selected bits, without disturbing other qubits or terminating computation. Such $m\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}d\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}r\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}u\phantom{\rule{0}{...