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722 articles for “T cells”
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Research ArticleOpen accessEvery word in the titleEFFECT OF AMBIENT AIR CONDITIONS ON LOW FREQUENCY NEGATIVE CAPACITANCE OF NC-TIO2/P3HT HETEROJUNCTION SOLAR CELLSH. Al-DmourWe report the negative capacitance of nanocrystalline titanium dioxide/poly (3-hexyl thiophene), nc-TiO2/P3HT, heterojunction solar cells. In air, low frequency negative capacitance has been observed under forward bias associated with high values of conductance. Interestingly, the negative capacitance disappear when the device was placed in vacuum chamber. These results are attributed to affect the ambient conditions on the charge carrier concentration … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 28 May 2014 · 6,486 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAPPLICATION OF A FUZZY-SIMULATION MODEL OF SCHEDULING ROBOTIC FLEXIBLE ASSEMBLY CELLSKhalid Abd, Kazem Abhary, Romeo MarianThis study describes the application of the developed model to the scheduling of the Robotic Flexible Assembly Cells (RFACs). The present study is a continuation of the paper titled “Development of a Fuzzy-Simulation Model of Scheduling Robotic Flexible Assembly Cells”. This new model for multi-objective scheduling problems in RFACs was based on combining a fuzzy-based mathematical model with simulation software … …Journal of Computer Science, Vol. 9, Issue 12 · 25 Nov 2013 · 6,742 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleActin Cytoskeleton and Related Proteins Role During Immune Cells Migration, Polarity and Activation: An OverviewClaudio Vieira da SilvaImmune cells migration, polarity and activation are essential during host immune response. Upon recognition of specific peptides presented by Human Leukocyte Antigen (HLA) molecules on Antigen Presenting Cells (APC), lymphocytes execute subset-related functions such as killing, help and regulation. These cells travel through the organism in a succession of steps, including entry into tissues, interstitial migration, APC scanning, synapse formation … …American Journal of Immunology, Vol. 9, Issue 4 · 19 Nov 2013 · 6,783 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleINDUCED PLURIPOTENT STEM CELLS AND THEIR IMPLICATION FOR BIOMEDICAL SCIENCESMaria Csobonyeiova, Stefan Polak, Lubos DanisovicThe groundbreaking discovery, that somatic mammalian cells can be epigenetically reprogrammed to a pluripotent state through the exogenous expression of the transcription factors Oct4, Sox2, Klf4 and c-myc, has yielded a new cell type for potential application in regenerative medicine, the induced Pluripotent Stem Cells (iPSCs). Since the first demonstration of creating iPSCs in 2006 great efforts have been made … …OnLine Journal of Biological Sciences, Vol. 13, Issue 4 · 3 Oct 2013 · 7,027 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStem Cells in Traumatic Brain InjurySamuel Dobrowolski, Guilherme LepskiTraumatic Brain Injury (TBI) is a devastating clinical condition that often causes permanent incapacity, especially in the younger population. The clinical relevant of TBI justifies the scientific interest in the pathophysiology of TBI, as well as in protective effects and development of treatment options. Stem cells have the ability to induce neuroprotection and neural repair inflammatory suppression, causing tissue reconstruction … …Neuroscience International, Vol. 4, Issue 1 · 12 Apr 2013 · 7,568 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEpigenetic Mechanisms in Hepatitis C Virus-Associated Hepatocellular Carcinoma: A Potential New Link Between Stem Cells, Virology and CancerQinghua Feng, Sajida Hassan, Trina Das et al.Recent studies suggest that epigenetic mechanisms are not only essential for the dynamic transcriptional regulation in embryonic and somatic stem cells, but are also actively involved in tumorigenesis: genes important for pluripotency are epigenetically regulated and aberrant epigenetic changes have been detected in virtually all human malignancies studied, including Hepatocellular Carcinoma (HCC). Infection with Hepatitis C Virus (HCV) is a … …Current Research in Medicine, Vol. 4, Issue 1 · 12 Mar 2013 · 8,039 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCytotoxicity Studies of Superparamagnetic Iron Oxide Nanoparticles in Macrophage and Liver CellsAroonsri Priprem, Pramote Mahakunakorn, Chunpen Thomas, Ian ThomasSuperparamagnetic Iron Oxide Nanoparticles (SPIONs) prepared by simplified coprecipitation were attractive as MRI contrast agents and drug carriers which could internally be manipulated under the influence of an external magnetic field and also cancer treatment due to additional hyperthermia effects. Problem statement: Macrophage and liver cells are potentially exposed to internal SPIONs, thus used for this cytotoxic tests for safety … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 22 Jun 2011 · 11,629 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnti-Metalloproteinase-9 Activities of Selected Indonesian Zingiberaceae Rhizome Extracts in Lipopolysaccharide-Induced Human Vascular Endothelial Cells In VitroYantiProblem statement: Atherosclerosis is associated with chronic inflammation triggered by bacterial infection that activates the breakdown of extracellular matrix protein by matrix Metalloproteinases (MMPs). Zingiberaceae, a group of tropical food crops grown in Indonesia and other Southeast Asia regions, has been traditionally used for food coloring, seasoning, culinary and medicinal purposes. However, its efficacy as natural vascular protection has not … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 1 · 27 May 2011 · 7,874 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRal-Binding Protein is Required for the Maturation and Function of Dendritic CellsJozef Borvak, Mukesh Sahu, Varun Joy et al.Problem statement: Dendritic Cells (DCs) integrate responses of innate and adaptive immune system via transmitting pro-inflammatory and regulatory signals to naïve cells within draining lymph nodes. DCs have high capacity for endocytosis, both Clathrin-Dependent (CDE) and Caveolin-Dependent (CvDE). Approach: We have recently shown that ATP-hydrolysis by the multifunctional transporter protein RLIP76 is the primary determinant of the rate of CDE. … …American Journal of Immunology, Vol. 6, Issue 3 · 13 Sep 2010 · 8,098 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAlnus subcordata C.A.M. Cambium Cells Dynamics Along Transport Corridors in Hyrcanian ForestsAidin Parsakhoo, Hamid Jalilvand, Mehdi SheikhiProblem statement: In this study, we considered transport corridors and sampling aspects to be the major indicators of ecological effects on Alder (Alnus subcordata) cambium cells dynamics. Approach: Thus, 240 cores were taken from forest-facing and road-facing trunk of Alder trees along Amre, Neka and Darab Kola transport corridors in hyrcanian Forests of Iran. Results showed that the roads corridor … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 6,953 accessesView PDFCite