A'séfiesof 21 carbamates and 8 aziridines were compared for quantitative carcinogenic activity using the pulmonary tumorinduction method in Strain A mice foi bîoassay. Aziridines as a class were more active than the carbamates, with 3,4-dichlorophertyl-jV-carbamoylaziridine being over 20 times more active on a molecular dose basis than urethan, the most active of the carbamates. Three carbama...

The nuclear ribosomal DNA internal transcribed spacer (ITS) sequences from 44 Indian Polygonum taxa were examined to investigate relationships among various sections proposed by earlier researchers. The maximum parsimony trees obtained from analysis of the ITS sequences suggested eight major groups of the Indian Polygonum spp. The relationships among different sections were largely congrue...

Nowadays with the rapid development of wireless sensor networks, and network traffic monitoring, stream data gradually becomes one of the most popular data models. Stream data is different from the traditional static data. Clustering analysis is an important technology of data mining, so that many researchers pay their attention to the clustering of stream data. In this paper, MSFS(Multiple Spe...

In this paper a general model for array-based approximate arithmetic computing (AAAC) is proposed to guide the minimization of processing error. In this model the key building block of AAAC circuits is the Error Compensation Unit (ECU). While designing the ECU, the two most critical problems are identified viz., determination of optimal error compensation values and identification of optimal er...

To understand how land has transformed kiln in ancient Jingdezhen DongHe River Basin from the Yuan Dynasty to the Ming Dynasty, we create virtual maps of ancient study area and present such concepts that unambiguously realize a combination model. In this model, Model parameters and neighborhood rules are obtained with the cellular automata model melt Particle Swarm Optimization algorithm. Meanw...

nloaded s-of-function mutations of retinoblastoma family (Rb) proteins drive tumorigenesis by overcoming baro cellular proliferation. Consequently, factors modulating Rb function are of great clinical import. Here, ow that miR-335 is differentially expressed in human cancer cells and that it tightly regulates the exon of Rb1 (pRb/p105) by specifically targeting a conserved sequence motif in its...

The crystal structure of the room-temperature ferroelectric phase of pyridinium periodate [C6H5NH]+[I04]has been determined by X-ray diffraction as orthorhombic, space group Cmc2i with a = 8.347(2), b = 7.270(2), c = 12.732(3) A and Z = 4. It was refined to/?l =0.0281 wR2 = 0.0762 for 389 absorption-corrected reflections. The structure comprises isolated I0 4 tetrahedra linked together by disor...

Fifty-three cases of brain abscess were treated at Mackay Memorial Hospital from January 1991 through December 2001. The ages ranged from 2 weeks to 84 years, with a peak at 40 to 50 years (11/53, 21%). The male to female ratio was 1.8:1 (34 males, 19 females). The most common presenting symptoms were fever (30/53, 57%), headache (29/53, 55%), and changed mental status (24/53, 45%). The duratio...

Since the p53 tumor suppressor gene has been found to be mutated in more than 50% of human cancers, it has attracted the interest of numerous researchers. The capacity of p53 for multiple biological functions can be attributed to its ability to act as a sequence-specific transcription factor to regulate expression of over one hundred different targets, and thus to modulate various cellular proc...

Lane markings can provide drivers significant warning instruction about current/ approaching road condition, in that case precise lane marking detection results are important assistance for safety issue in the driving assistance system (DAS). In this paper, we mainly focus on urban lane marking detection. We used sampling peaks from IPM image for lane markings’ extraction and description. The p...