نتایج جستجو برای: pbn

تعداد نتایج: 411  

Journal: :CoRR 2007
Xing M. Wang

In this article, we continue to explore Probability Bracket Notation (PBN), proposed in our previous article. Using both Dirac vector bracket notation (VBN) and PBN, we define induced Hilbert space and induced sample space, and propose that there exists an equivalence relation between a Hilbert space and a sample space constructed from the same base observable(s). Then we investigate Markov tra...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1998
N Klöcker A Cellerino M Bähr

Brain-derived neurotrophic factor (BDNF) partially promotes the survival of axotomized retinal ganglion cells (RGCs). In analogy with in vitro experiments (; ), we tested whether neuroprotection by BDNF is limited by adverse effects as a consequence of excessive free radical formation. First, we investigated whether BDNF and the free radical scavenger N-tert-butyl-(2-sulfophenyl)-nitrone (S-PBN...

Journal: :Advances in experimental medicine and biology 2007
Kui Xu Xiaoyan Sun Michelle A Puchowicz Joseph C LaManna

Transient global brain ischemia induced by cardiac arrest and resuscitation (CAR) results in reperfusion injury associated with oxidative stress. Oxidative stress is known to produce delayed selective neuronal cell loss and impairment of brainstem function, leading to post-resuscitation mortality. Levels of 4-hydroxy-2-nonenal (HNE) modified protein adducts, a marker of oxidative stress, was fo...

2014
Christopher Katnik Javier Cuevas

Ischemia, and subsequent acidosis, induces neuronal death following brain injury. Oxidative stress is believed to be a key component of this neuronal degeneration. Acute chemical ischemia (azide in the absence of external glucose) and acidosis (external media buffered to pH 6.0) produce increases in intracellular calcium concentration ([Ca2+]i) and inward membrane currents in cultured rat corti...

Journal: :Journal of neurophysiology 2004
Ken'ichi Tokita Zoltán Karádi Tsuyoshi Shimura Takashi Yamamoto

Our previous studies have demonstrated that gustatory neurons in the parabrachial nucleus (PBN) show altered responses after the acquisition of conditioned taste aversion (CTA) to NaCl. The present study was conducted 1) to examine centrifugal influences on the altered gustatory activity of CTA-trained rats, and 2) to evaluate the role of amiloride-sensitive (ASN) and -insensitive NaCl (AIN) be...

Journal: :Publications De L'institut Mathematique 2022

A variant of a semigroup S with respect to an element ? is the = (S, *a), where x *a y xay for any x, S. Here, sandwich Sa. In this article, we study variants partial Brauer monoid PBn n N. We give classification these in case when rank nonzero.

2012
Young Kwon Ko Ann Misun Youn Boo Hwi Hong Yoon Hee Kim Yong Sup Shin Po-Soon Kang Keon Jung Yoon Won Hyung Lee

BACKGROUND Reactive oxygen species (ROS) such as superoxide radicals, hydrogen peroxide, nitric oxide, and nitroperoxide, cause oxidative stress which interferes with normal cell functioning, resulting in cell damage. It is reported to be associated with chronic pain, especially neuropathic pain, and inflammatory pain. ROS is also closely related to central sensitization. Therefore, this study ...

Journal: :The Journal of clinical investigation 1996
S L Leib Y S Kim L L Chow R A Sheldon M G Täuber

Reactive oxygen intermediates (ROI) contribute to neuronal injury in cerebral ischemia and trauma. In this study we explored the role of ROI in bacterial meningitis. Meningitis caused by group B streptococci in infant rats led to two distinct forms of neuronal injury, areas of necrosis in the cortex and neuronal loss in the dentate gyrus of the hippocampus, the latter showing evidence for apopt...

2012
Xi Chen Hao Jiang Wai-Ki Ching

In this paper we envisage building Probabilistic Boolean Networks (PBNs) from a prescribed stationary distribution. This is an inverse problem of huge size that can be subdivided into two parts — viz. (i) construction of a transition probability matrix from a given stationary distribution (Problem ST), and (ii) construction of a PBN from a given transition probability matrix (Problem TP). A gen...

Journal: :Bioinformatics 2007
Wai-Ki Ching Shuqin Zhang Michael K. Ng Tatsuya Akutsu

MOTIVATION Probabilistic Boolean networks (PBNs) have been proposed to model genetic regulatory interactions. The steady-state probability distribution of a PBN gives important information about the captured genetic network. The computation of the steady-state probability distribution usually includes construction of the transition probability matrix and computation of the steady-state probabil...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید