University College Cork – National University of Ireland, Cork is a constituent university of the National University of Ireland. The university is located in Cork.The university was founded in 1845 as one of three Queen’s Colleges located in Belfast, Cork, and Galway. It became University College, Cork, under the Irish Universities Act of 1908. The Universities Act 1997 renamed the university as National University of Ireland, Cork, and a Ministerial Order of 1998 renamed the university as University College Cork – National University of Ireland, Cork, though it continues to be almost universally known as University College Cork.The university was named Irish University of the Year by the Sunday Times in 2003, 2005, and 2011. The 2011 QS World University Rankings assigned a 5-star rating to UCC, and ranked the university amongst the top 2% of universities worldwide. Also in 2011, University College Cork became the first university worldwide to achieve the ISO 50001 standard in energy management. UCC ranks 4th worldwide in terms of food research, and in 2013 the medical school was ranked among the top 200 in the world.Dr. Michael B. Murphy has been president of the university since February 2007. Wikipedia.
Zhao J.,University College Cork
Optics Express | Year: 2014
Offset quadrature amplitude modulation (offset-QAM) orthogonal frequency division multiplexing (OFDM) exhibits enhanced net data rates compared to conventional OFDM, and reduced complexity compared to Nyquist FDM (N-FDM). However, channel estimation in discrete-Fourier-transform (DFT) based offset-QAM OFDM is different from that in conventional OFDM and requires particular study. In this paper, we derive a closed-form expression for the demultiplexed signal in DFT-based offset-QAM systems and show that although the residual crosstalk is orthogonal to the decoded signal, its existence degrades the channel estimation performance when the conventional least-square method is applied. We propose and investigate four channel estimation algorithms for offset-QAM OFDM that vary in terms of performance, complexity, and tolerance to system parameters. It is theoretically and experimentally shown that simple channel estimation can be realized in offset-QAM OFDM with the achieved performance close to the theoretical limit. This, together with the existing advantages over conventional OFDM and N-FDM, makes this technology very promising for optical communication systems. © 2014 Optical Society of America.
McCarthy F.P.,University College Cork
Human reproduction (Oxford, England) | Year: 2013
Do women with a previous miscarriage or termination of pregnancy have an increased risk of spontaneous preterm birth and is this related to previous cervical dilatation and curettage? A single previous pregnancy loss (termination or miscarriage) managed by cervical dilatation and curettage is associated with a greater risk of SpPTB. Miscarriage affects ∼20% of pregnancies and as many as a further 20% of pregnancies undergo termination. We utilized data from 5575 healthy nulliparous women with singleton pregnancies recruited to the Screening for Pregnancy Endpoints (SCOPE) study, a prospective cohort study performed between November 2004 and January 2011. The primary outcome was spontaneous preterm birth (defined as spontaneous preterm labour or preterm premature rupture of membranes (PPROM) resulting in preterm birth <37 weeks' gestation). Secondary outcomes included PPROM, small for gestational age, birthweight, pre-eclampsia and placental abruption. Women with previous pregnancy loss (miscarriage or termination) were compared with those with no previous pregnancy loss. There were 4331 (78%) women who had no previous pregnancy loss, 974 (17.5%) who had one early previous pregnancy loss, 249 (4.5%) who had two and 21 (0.5%) who had three or four losses. Women with two to four previous losses, but not those with a single loss, had an increased risk of spontaneous preterm birth (adjusted OR 2.12; 95% CI 1.55, 2.90) and/or placental abruption (adjusted OR 2.30; 95% CI 1.36, 3.89) compared with those with no previous pregnancy. A single previous miscarriage or termination of pregnancy where the management involved cervical dilatation and curettage was associated with an increased risk of spontaneous preterm birth (adjusted OR 1.64; 95% CI 1.08, 2.50; 6% absolute risk and adjusted OR 1.83; 95% CI 1.35, 2.48; 7% absolute risk, respectively) compared with those with no previous pregnancy losses. This is in contrast with women with a single previous miscarriage or termination managed non-surgically who showed no increase risk (adjusted OR 0.86; 95% CI 0.38, 1.94; 3.4% absolute risk and adjusted OR 0.87; 95% CI 0.69, 1.12; 3.8% absolute risk, respectively). Although every effort was made to record accurate previous pregnancy data, it was not feasible to confirm the history and management of previous pregnancy loss by hospital records. This may have introduced recall bias. This large prospective cohort study of healthy nulliparous women has demonstrated that women with either a previous miscarriage or termination of pregnancy were at increased risk of spontaneous preterm birth if they were managed by procedures involving cervical dilatation and curettage. However, overall, women with a single pregnancy loss did not have an increased risk of having any other of the adverse pregnancy outcomes examined. In contrast, two to four previous pregnancy losses were associated with an increased risk of having a pregnancy complicated by spontaneous preterm birth and/or placental abruption. Research is required to determine whether non-surgical management of miscarriage or termination of pregnancy should be advocated over surgical treatment. New Zealand: New Enterprise Research Fund, Foundation for Research Science and Technology; Health Research Council; Evelyn Bond Fund, Auckland District Health Board Charitable Trust. Australia: Premier's Science and Research Fund, South Australian Government. Ireland: Health Research Board. Leeds: Cerebra Charity, Carmarthen. Manchester: National Health Service NEAT Grant; Manchester Biotechnology and Biological Sciences Research Council; University of Manchester Proof of Concept Funding. King's College London: Guy's and St Thomas' Charity. King's College London and Manchester: Tommy's-The Baby Charity. N/A.
O'Neill C.,University College Cork
Experimental Gerontology | Year: 2013
The normal on and off switching of the PI3-K (phosphoinositide 3-kinase)/Akt pathway, particularly by its major activators insulin and IGF-1 (insulin-like growth factor-1), is a powerful integrator of physiological responses rudimentary to successful aging. This is highlighted by extensive studies showing that reducing, but not obliterating, activation of the PI3-K/Akt/mTOR signal, at several levels, can extend healthy lifespan in organisms from yeast to mammals. Moreover, aberrant control of the PI3-K/Akt axis is emerging to be a primary causative node in all major diseases of aging: cancer, type 2 diabetes mellitus (T2DM), heart disease and neurodegeneration. Aging is the major risk factor for AD, the most common dementia disorder. The integrated coordination of neuronal responses through the PI3-K/Akt pathway has significant functional impact on key events that go awry in Alzheimer's disease (AD), including: synaptic plasticity, neuronal polarity, neurotransmission, proteostasis, use-dependent translation, metabolic control and stress responses including DNA repair. Investigation of the status of the PI3-K/Akt system in brains of individuals who have had AD shows aberrant and sustained activation of neuronal PI3-K/Akt/mTOR signaling to be an early feature of the disease. This is mechanistically linked to progressive desensitization of normal brain insulin and IGF-1 responses, aberrant proteostasis of Aβ and tau, synaptic loss and cognitive decline in the disease. Notably, concomitantly with feedback inhibition of insulin and IGF-1 responses, increased activation of the neuronal PI3-K/Akt/mTOR axis is a major candidate effector system for transmission of pathophysiological signals from Aβ to tau in the context of defects in synaptic transmission that lead to cognitive decline. Therapeutic approaches targeted at normalizing signaling through either the neuronal PI3-kinase/Akt/mTOR pathway or its activation by insulin and IGF-1 have been shown to be protective against the development of AD pathology and cognitive decline in animal models of AD and some of these therapies are entering clinical trials in patients with the disease. © 2013 Elsevier Inc.
Liang K.L.,University College Cork
Blood | Year: 2013
There is growing research interest in the mammalian Tribbles (Trib) family of serine/threonine pseudokinases and their oncogenic association with acute leukemias. This review is to understand the role of Trib genes in hematopoietic malignancies and their potential as targets for novel therapeutic strategies in acute myeloid leukemia and acute lymphoblastic leukemia. We discuss the role of Tribs as central signaling mediators in different subtypes of acute leukemia and propose that inhibition of dysregulated Trib signaling may be therapeutically beneficial.
Henry D.,University College Cork
European Journal of Mechanics, B/Fluids | Year: 2013
In this paper we present an exact solution to the governing equations for equatorial geophysical water waves which admit an underlying current. © 2012 Elsevier Masson SAS. All rights reserved.