نتایج جستجو برای: bam

تعداد نتایج: 2423  

Journal: :Cell 2010
Laixin Xia Shunji Jia Shoujun Huang Hailong Wang Yuanxiang Zhu Yanjun Mu Lijuan Kan Wenjing Zheng Di Wu Xiaoming Li Qinmiao Sun Anming Meng Dahua Chen

In the Drosophila ovary, germline stem cells (GSCs) are maintained primarily by bone morphogenetic protein (BMP) ligands produced by the stromal cells of the niche. This signaling represses GSC differentiation by blocking the transcription of the differentiation factor Bam. Remarkably, bam transcription begins only one cell diameter away from the GSC in the daughter cystoblasts (CBs). How this ...

Journal: :Padjajaran Journal of Dentistry 2023

Introduction: Tooth extraction can result in loss of alveolar bone. The application biomaterials Bovine Amniotic Membrane (BAM) that containing growth factors and collagen is expected to play a role socket preservation. This study aimed observe the effect BAM on osteoblasts, osteocytes, histological preparate bone Sprague Dawley rats (SD). Methods: 16 male SD were used this group. extracted man...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
E Burgos H Ceva R P Perazzo

We study the dynamics of a generalized minority game (GMG) and of the bar attendance model (BAM) in which a number of agents self-organize to match an attendance that is fixed externally as a control parameter. We compare the usual dynamics used for the minority game with one for the BAM that makes a better use of the available information. We study the asymptotic states reached in both framewo...

2013
P. VADIVEL R. SAKTHIVEL K. MATHIYALAGAN P. THANGARAJ

This paper addresses the problem of passivity analysis issue for a class of fuzzy bidirectional associative memory (BAM) neural networks with Markovian jumping parameters and time varying delays. A set of sufficient conditions for the passiveness of the considered fuzzy BAM neural network model is derived in terms of linear matrix inequalities by using the delay fractioning technique together w...

Journal: :Mathematical Programming 2021

The notion of best approximation mapping (BAM) with respect to a closed affine subspace in finite-dimensional spaces was introduced by Behling, Bello Cruz and Santos show the linear convergence block-wise circumcentered-reflection method. possesses two critical properties circumcenter for convergence. Because iteration sequence BAM linearly converges, is interesting its own right. In this paper...

2010

Escherichia coli is one of the predominant species of facultative anaerobes in the human gut and usually harmless to the host; however, a group of pathogenic E. coli has emerged that causes diarrheal disease in humans. Referred to as Diarrheagenic E. coli (28) or commonly as pathogenic E. coli, these groups are classified based on their unique virulence factors and can only be identified by the...

Journal: :NeuroImage 2009
Kolawole O. Babalola Brian Patenaude Paul Aljabar Julia A. Schnabel David N. Kennedy William R. Crum Stephen M. Smith Timothy F. Cootes Mark Jenkinson Daniel Rueckert

The automation of segmentation of subcortical structures in the brain is an active research area. We have comprehensively evaluated four novel methods of fully automated segmentation of subcortical structures using volumetric, spatial overlap and distance-based measures. Two methods are atlas-based - classifier fusion and labelling (CFL) and expectation-maximisation segmentation using a brain a...

2018
Dongsheng Chen Lijuan Zhou Fuling Sun Mingzhong Sun Xiaoqian Tao

It is well known that cyclinB3 (cycB3) plays a key role in the control of cell cycle progression. However, whether cycB3 is involved in stem cell fate determination remains unknown. The Drosophila ovary provides an exclusive model for studying the intrinsic and extrinsic factors that modulate the fate of germline stem cells (GSCs). Here, using this model, we show that DrosophilacycB3 plays a ne...

2016
Cyril Jourda Céline Cardi Olivier Gibert Andrès Giraldo Toro Julien Ricci Didier Mbéguié-A-Mbéguié Nabila Yahiaoui

Starch is the most widespread and abundant storage carbohydrate in plants. It is also a major feature of cultivated bananas as it accumulates to large amounts during banana fruit development before almost complete conversion to soluble sugars during ripening. Little is known about the structure of major gene families involved in banana starch metabolism and their evolution compared to other spe...

Journal: :Cancer biology & therapy 2006
Janice C Lai Pui-Chi Lo Dennis K P Ng Wing-Hung Ko Stanley C H Leung Kwok-Pui Fung Wing-Ping Fong

Photodynamic therapy is recently developed as an effective treatment for malignant disease. The therapeutic effect depends on the properties of the photosensitizers. Among the novel photosensitizers we have synthesized, the unsymmetrical bisamino phthalocyanine, SiPc[C3H5(NMe2)2O](OMe) (BAM-SiPc) is particularly active in the HepG2 cell culture model. Fluorescence microscopy has also indicated ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید