نتایج جستجو برای: an

تعداد نتایج: 5683571  

2000
Martha McGinnis

The nature of scrambling is a focus of recent debate in the syntactic literature. The term scrambling is used to describe apparently optional permutations of word order, found especially in languages with extensive case-marking. Saito (1989) argues that scrambling is A-bar movement (like wh-movement), rather than A-movement (like movement to the subject position). Webelhuth (1989) argues for sc...

Journal: :Computación y Sistemas 1999
Gordana Jovanovic-Dolecek Arturo Sarmiento-Reyes

A new efficient method for implementing narrowband FlR jilters is presented. The method is based on an lnterpolated jilter (lFlR) structure and a cascade of comb and integrator (ClC) structures. The novelty ofthís technique ís that the ClC structure is used as an image suppressor in an lFlR structure. The method is useful for narrowband FlRjilter design and some design examples for lowpass and ...

Journal: :Journal of embryology and experimental morphology 1986
A G Jacobson G F Oster G M Odell L Y Cheng

We present here a new model for epithelial morphogenesis, which we call the 'cortical tractor model'. This model assumes that the motile activities of epithelial cells are similar to those of mesenchymal cells, with the added constraint that the cells in an epithelial sheet remain attached at their apical circumference. In particular, we assert that there is a time-averaged motion of cortical c...

Journal: :Chemical communications 2011
Keisuke Okada Mahasweta Nandi Jun Maruyama Tatsuya Oka Takashi Tsujimoto Katsuyoshi Kondoh Hiroshi Uyama

Mesoporous polyacrylonitrile (PAN) monolith has been fabricated by a template-free approach using the unique affinity of PAN towards a water/dimethyl sulfoxide (DMSO) mixture. A newly developed Thermally Induced Phase Separation Technique (TIPS) has been used to obtain the polymer monoliths and their microstructures have been controlled by optimizing the concentration and cooling temperature.

2003
F. Martínez Antonio Guillamón J. J. Martínez

Speech signals can be considered as being generated by mechanical system with inherently nonlinear dynamics. The purpose of this paper is to describe its complexity using the fractal dimension of a variety of spanish voiced sounds (vowels, nasals) and unvoiced sounds (fricatives) In our research, the fractal dimension was computed over recorder signals from a speech spanish database (AHUMADA), ...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2000
H Kiaris A V Schally A Nagy B Sun K Szepeshazi G Halmos

Receptors for somatostatin (SST) found on brain tumors could be used for targeting of chemotherapeutic agents. This study was conducted to investigate the effects of targeted cytotoxic SST analogue AN-238, consisting of 2-pyrrolinodoxorubicin (AN-201), a potent derivative of doxorubicin (DOX) linked to somatostatin analogue RC-121, on the growth of SST receptor-positive U-87 MG human glioblasto...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ریاضیات 1392

یک تعمیم از گراف غیرجابه جایی گروها وتشخیص پذیری گروه متناوب an به وسیله گراف غیر جابه جایی

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
D C Danila A V Schally A Nagy J M Alexander

The selectivity of ligands specific for certain cells can be used to preferentially target chemotherapeutic compounds to neoplastic cells. Human breast, ovarian, endometrial, and prostatic cancers express receptors that can mediate the delivery of targeted cytotoxic compounds to neoplastic cells. Recently, a potent derivative of 2-pyrrolinodoxorubicin (AN-201) conjugated to [D-Lys6] luteinizing...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مراغه - دانشکده علوم پایه 1389

assume ? ? l2(rd) has fourier transform continuous at the origin, with ˆ ?(0) = 1, and thatcan be represented by an affine series f = j>0 k?zd c j,k?j,k for some coefficients satisfying c 1(2) = j>0 k?zd |c j,k|2 1/2 <?. here ?j,k(x) = |deta j |1/2?(a jx ?k) and the dilation matrices a j expand, for example a j = 2j i. the result improves an observation by daubechies that t...

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