288 research outputs found
An approach for assessment of tumor volume from mammography in locally advanced breast cancer
No full textThe editorial board regrets the mistake made in the MJMS Vol. 15 No. 1
(January 2008), page 37 - 41 with the title An approach for assessment
of tumour volume from mammography in locally advanced breast cancer by
Gupreet Singh from Medical Physics Unit, Department of Radiodiagnosis,
Institute Rotary Cancer Hospital, All India Institute of Medical
Sciences, New Delhi110029, India. The authors actually responsible for
this manuscript titled “An approach for assessment of tumour
volume from mammography in locally advanced breast cancer” are
Gupreet Singh, Sanjay Thulkar*, Ashu Seith*, Rajinder Parshad** and
Pratik Kumar. There are no changes in the content and the corresponding
authors address. The email is as it is below. Corresponding Author :
Dr. Pratik Kumar (Ph.D). Medical Physics Unit, Department of
Radiodiagnosis, Institute Rotary Cancer Hospital, All India Institute
of Medical Sciences, New Delhi-110029, India. Tel: + 01126594448 Fax: +
91-11-26588663 Email: [email protected]
An approach for assessment of tumor volume from mammography in locally advanced breast cancer
No full textThe editorial board regrets the mistake made in the MJMS Vol. 15 No. 1
(January 2008), page 37 - 41 with the title An approach for assessment
of tumour volume from mammography in locally advanced breast cancer by
Gupreet Singh from Medical Physics Unit, Department of Radiodiagnosis,
Institute Rotary Cancer Hospital, All India Institute of Medical
Sciences, New Delhi110029, India. The authors actually responsible for
this manuscript titled “An approach for assessment of tumour
volume from mammography in locally advanced breast cancer” are
Gupreet Singh, Sanjay Thulkar*, Ashu Seith*, Rajinder Parshad** and
Pratik Kumar. There are no changes in the content and the corresponding
authors address. The email is as it is below. Corresponding Author :
Dr. Pratik Kumar (Ph.D). Medical Physics Unit, Department of
Radiodiagnosis, Institute Rotary Cancer Hospital, All India Institute
of Medical Sciences, New Delhi-110029, India. Tel: + 01126594448 Fax: +
91-11-26588663 Email: [email protected]
Modelling and Resilience-based Evaluation of Urban Drainage and Flood Management Systems for Future Cities
No full textIn future cities, urban drainage and flood management systems should be designed not only to reliable during normal operating conditions but also to be resilient to exceptional threats that lead to catastrophic failure impacts and consequences. Resilience can potentially be built into urban drainage systems by implementing a range of strategies, for example by embedding redundancy and flexibility in system design or rehabilitation to increase their ability to efficiently maintain acceptable customer flood protection service levels during and after occurrence of failure or through installation of equipment that enhances customer preparedness for extreme events or service disruptions.
However, operationalisation of resilience in urban flood management is still constrained by lack of suitable quantitative evaluation methods. Existing hydraulic reliability-based approaches tend to focus on quantifying functional failure caused by extreme rainfall or increases in dry weather flows that lead to hydraulic overloading of the system. Such approaches take a narrow view of functional resilience and fail to explore the full system failure scenario space due to exclusion of internal system failures such as equipment malfunction, sewer (link) collapse and blockage that also contribute significantly to urban flooding.
In this research, a new analytical approach based on Global Resilience Analysis (GRA) is investigated and applied to systematically evaluate the performance of an urban drainage system (UDS) when subjected to a wide range of both functional and structural failure scenarios resulting from extreme rainfall and pseudo random cumulative link failure respectively. Failure envelopes, which represent the resulting loss of system functionality (impacts) are determined by computing the upper and lower limits of the simulation results for total flood volume (failure magnitude) and average flood duration (failure duration) at each considered failure level. A new resilience index is developed and applied to link resulting loss of functionality magnitude and duration to system residual functionality (head room) at each considered failure level.
With this approach, resilience has been tested and characterized for a synthetic UDS and for an existing UDS in Kampala city, Uganda. In addition, the approach has been applied to quantify the impact of interventions (adaptation strategies) on enhancement of global UDS resilience to flooding. The developed GRA method provides a systematic and computationally efficient approach that enables evaluation of whole system resilience, where resilience concerns ‘beyond failure’ magnitude and duration, without prior knowledge of threat occurrence probabilities. The study results obtained by applying the developed method to the case studies suggest that by embedding the cost of failure in resilience-based evaluation, adaptation strategies which enhance system flexibility properties such as distributed storage and improved asset management are more cost-effective over the service life of UDSs.UK Common Wealth Scholarships Commission (CSC
Measurement of the inclusive and differential -channel single top quark production cross section at 13 TeV with the CMS experiment
No full textA measurement of the inclusive and differential -channel single top quark production cross section is performed in this thesis.
The measurement uses 137 fb of data recorded at the CMS experiment at the LHC with a center-of-mass energy of 13 TeV.
Events are selected with exactly one muon or electron and two or three jets, of which at least one is identified as originating from a bottom quark.
In the analysis an improved technique for reconstructing the top quark has been developed that makes use of a neural network in order to achieve a better description of the top quark\u27s kinematic variables.
A multiclassification BDT is used to classify events into different process categories.
The cross sections are extracted from a fit to the output distribution of the multiclassification BDT.
The inclusive cross section of -channel single top quark production was measured to be and the cross section of top antiquark production to be .
The differential cross section measurement is performed via unfolding.
The measured differential cross sections as a function of the top quark transverse momentum and rapidity agree with the predictions of the SM.
Three angular variables, , and , are defined in the top quark rest frame between the charged lepton from the top quark decay and three axes, which are defined based on the direction of the spectator quark and the beamline axis.
The asymmetries in these distributions are measured to be:
,
, and
.
The measured asymmetries are used to constraint the magnitude of possible right handed couplings between the top quark and the W boson
tt(2l) Background in Soft Opposite Sign Lepton + MET SUSY Search
No full textThe goal was to predict the tt2l background in the Soft Opposite Sign Lepton + MET SUSY Search from events which have one b jet. This goal could be partially achieved
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Who Are America’s Poor Children? Examining Health Disparities Among Children in the United States
No full textGood health goes a long way, as research suggests that poor health in childhood not only impedes early child development, but can also have lasting consequences on children’s future health and wellbeing. Although many would agree that a health is a fundamental right, children born into low-income families are less likely to enjoy this right.
As part of NCCP’s Who are America’s Poor Children? series, this report draws on the National Health Interview Survey (NHIS) and the National Health and Nutrition Examination Survey (NHANES) to provide an overview of the health of America’s children by poverty status from 2007 to 2009. To assess health disparities
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Chwedleu Seith Doethon Rufein: A Single Manuscript Edition of the Middle Welsh Text of The Seven Sages of Rome, from Oxford, Jesus College Manuscript 20, Including Translation and Notes.
No full textThis is a new edition and translation of Chwedleu Seith Doethon Rufein, the Middle
Welsh version of the popular medieval tales known as ‘The Seven Sages of Rome’.
The text found in J MS 111 has already been published in modern Welsh, which
limits its usefulness for those who are not fluent in that language. The only English
translation available is an archaic, nineteenth century version which needs
updating. This has been addressed here. Certain concepts are questioned, such as
Lewis’s suggestion that the tales were the original work of a Welsh cleric and
therefore constitute the first Welsh novel His opinion that J MS 20 is the oldest
extant Welsh version of the tale is also investigated.
The Welsh redaction itself is characterised by the usual medieval Welsh practice
of abbreviation and concision. Here the translation of French Sept Sages is
curtailed by the omission of direct speech and extraneous detail. Any deviation,
such as borrowings from traditional Welsh tales, is therefore the more
noteworthy. The pointed use of native literary tradition suggests that the author
was an educated man, one not only fluent in French, as evidenced from his
adaptation of the Sept Sages, but one well-versed in his own literary heritage. His
exclusion of the scatological elements present in the French parent version may
point to his religious calling but could also indicate that he was writing for a
mixed audience: not only for men but also for women and children.
The base text used here is the one found in Jesus MS 20, housed at the Bodleian
Library, Oxford, though the two other manuscript witnesses, Jesus MS 111 (Llyfr
Coch Hergest) and NLW Llanstephan MS 2, are also discussed. This present
edition includes a brief history of the transmission of the tales from their Eastern
origins to the West: to France and then on to Wales. This is followed by an
overview of the cultural and historical background of the period, placing the tales
in context.
The conclusion drawn is that, though Chwedleu Seith Doethon Rufein, the Welsh
redaction of the Sept Sages Romae, is but one small part of the international
corpus of this literary tradition, it is a highly individual and therefore invaluable
member of the genre
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Who Are America's Poor Children? Examining Health Disparities by Race and Ethnicity
No full textGood health in childhood both reflects and predicts full social and economic participation. Conversely, social divisions by race and income are often associated with health disparities, which inhibit children from achieving their full potential. Although many would agree that health is a fundamental right, children subject to exclusion by race and class are less likely to enjoy this right. An earlier report in the NCCP Who are America's Poor Children? series examined child health disparities by poverty status. In the introduction to that report two points were made. First, "the relationship between socioeconomic status and health is one of the most robust and well documented findings in social science." Second, the relationship is also reciprocal, as poverty detracts from resources used to maintain health, while poor health detracts from the educational and employment paths to income mobility. This report goes one step further to consider health disparities among poor children by race and ethnicity. As in the earlier report, it identifies a list of publicly available indicators found in the National Health Interview Survey (NHIS) and the National Health and Nutrition Examination Survey (NHANES). It examines selected disparities in six domains of health risk and health status: family composition and poverty, food insecurity, environmental conditions, health insurance coverage, access to healthcare services, and health outcomes. It offers a short introduction to a dozen indicators, explaining how each reflects one of the six dimensions of heath and how public policies might help to reduce relevant disparities. Intended for a generalist audience, this report summarizes and references primary research resources
Cumulative early childhood exposure to poverty: measures, consequences, mitigation
No full textAcross several disciplines, there is a growing consensus that early childhood exposure to poverty causes adverse adult outcomes proportionate to its timing, duration, and intensity. Drawing from the SIPP, the first paper in this series proposes a cumulative measure that incorporates these dimensions of cumulative risk, duration, and intensity of poverty in the first thirty-six months of childhood. It shows that the risks of chronic poverty are high, the cumulative deficits among chronically poor children are substantial, and the population of chronically poor families is more demographically diverse than sometimes portrayed. The clearest risk factors are the constrained earnings capacities of parents who are unmarried or have less than a high school education. Drawing from the PSID, the second paper identifies small but significant associations between cumulative exposure and both the levels and growth in reading and math skills during school ages. These associations are robust to controls for current family income at the time of the standardized tests or variations in deficits among sibling pairs exposed at different times or to different degrees.
The third paper assesses the extent to which the three largest U.S. federal income supports—the Supplemental Nutrition Assistance Program (SNAP), the Earned Income Tax Credit (EITC), and the Additional Child Tax Credit (ACTC)—reduce cumulative exposure, separately and in combination. The pandemic expansions to these supports demonstrated the potential to substantially mitigate cumulative exposure for most children. Income supports are treatments, however, not cures, and when the expansions expired higher cumulative exposure returned.Ph.D.Includes bibliographical reference
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