نتایج جستجو برای: live poles

تعداد نتایج: 107602  

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
negin soleimani environmental health engineering department, school of health, zanjan university of medical sciences, zanjan, iran. mehran mohammadian fazli biotechnology departments, school of pharmacy, zanjan university of medical environmental health engineering department, school of health, zanjan university of medical sciences, zanjan, iran. ali ramazani biotechnology departments, school of pharmacy, zanjan university of medical sciences, zanjan, iran. mohammadreza mehrasbi department of environmental health engineering, school of public health, zanjan university of medical sciences, zanjan, iran .

background; various industries produce and discharge wastes containing different heavy metals into the environment. apart from using living biomass, dead and dried biomasses have been introduced as a new field of biotreatment technology. method; the cadmium (cd) (ii) removal characteristics of live (growing), dead (autoclaved), and oven-dried biomasses of aspergillus versicolor were examined as...

2007
Suguna Thanagasundram Sarah Spurgeon Fernando Soares Schlindwein

A new scheme is proposed that combines Autoregressive (AR) modelling techniques and pole-related spectral decomposition for the study of incipient single-point bearing defects for a vibration based condition monitoring system. Vibration signals obtained from the ball bearings from the High Vacuum (HV) and Low Vacuum (LV) ends of a dry vacuum pump run in normal and faulty conditions are modelled...

Journal: :Current Biology 2002
Miguel Angel Garcia Nirada Koonrugsa Takashi Toda

BACKGROUND Metaphase is thought to be a force-equilibrium state of "tug of war," in which poleward forces are pulling kinetochores and counteracting the cohesive forces between the centromeres. Unlike conventional kinesins, members of the Kin I family are microtubule-depolymerizing enzymes, which are expected to be molecules that could generate poleward forces. RESULTS We have characterized m...

Journal: :IEICE Transactions 2014
Shunsuke Yamaki Masahide Abe Masayuki Kawamata

This paper derives the balanced realizations of secondorder analog filters directly from the transfer function. Second-order analog filters are categorized into the following three cases: complex conjugate poles, distinct real poles, and multiple real poles. For each case, simple formulas are derived for the synthesis of the balanced realizations of secondorder analog filters. As a result, we o...

2009
Levente Lócsi

In this paper we investigate the application of the Nelder– Mead simplex method to approximate poles of complex rational functions. To our knowledge, there isn’t any algorithm which is able to find the poles of a function when only the values on the unit circle are given. We will show that this method can accurately approximate 1, 2 or even 3 poles without any preliminary knowledge of their loc...

1999
Bernard Deconinck

The real, nonsingular elliptic solutions of the Korteweg-deVries equation are studied through the time dynamics of their poles in the complex plane. The dynamics of these poles is governed by a dynamical system with a constraint. This constraint is shown to be solvable for any finite number of poles located in the fundamental domain of the elliptic function, often in many different ways. Specia...

2004
R. L. Rumsey G. E. Woodson

Woodpecker damage caused extensive reductions in strength of 50-foot, class-2 utility poles, the amount depending on the cross-sectional area of wood removed and its distance from the apex. Two methods for estimating when damaged poles should be replaced proved to be conservative when applied to results of field tests. Such conservative predictions of falling loads could be used for systematic ...

2000
Gregory C. Rogers Kitty K. Chui Edwin W. Lee Karen P. Wedaman David J. Sharp Gina Holland Robert L. Morris Jonathan M. Scholey

We have investigated the intracellular roles of an Xklp2-related kinesin motor, KRP 180 , in positioning spindle poles during early sea urchin embryonic cell division using quantitative, real-time analysis. Immunolocalization reveals that KRP 180 concentrates on microtubules in the central spindle, but is absent from centrosomes. Microinjection of inhibitory antibodies and dominant negative con...

Journal: :Journal of visualized experiments : JoVE 2013
Asher Castiel Leonid Visochek Leonid Mittelman Yael Zilberstein Francoise Dantzer Shai Izraeli Malka Cohen-Armon

Phenanthrene derivatives acting as potent PARP1 inhibitors prevented the bi-focal clustering of supernumerary centrosomes in multi-centrosomal human cancer cells in mitosis. The phenanthridine PJ-34 was the most potent molecule. Declustering of extra-centrosomes causes mitotic failure and cell death in multi-centrosomal cells. Most solid human cancers have high occurrence of extra-centrosomes. ...

2014
Jennifer L. Rohn Jigna V. Patel Beate Neumann Jutta Bulkescher Nunu Mchedlishvili Rachel C. McMullan Omar A. Quintero Jan Ellenberg Buzz Baum

During animal cell division, an actin-based ring cleaves the cell into two. Problems with this process can cause chromosome missegregation and defects in cytoplasmic inheritance and the partitioning of organelles, which in turn are associated with human diseases. Although much is known about how chromosome segregation is coupled to cell division, the way organelles coordinate their inheritance ...

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