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Limited By:	Author = O'Keeffe, Derek T.;

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'LUCAS': the library assistant robot, implementation and localisation (2005)

Behan, Julie; O'Keeffe, Derek T.

'LUCAS': the library assistant robot, implementation and localisation (2005)

Behan, Julie; O'Keeffe, Derek T.

Abstract:

In modern ageing society, robots are been designed to play an increasing role in the lives of elderly people This paper describes a mobile robotic assistant, named ‘LUCAS’, Limerick University Computerised Assistive System, that is currently being developed to assist elderly individuals with mild cognitive or physical impairments within a library environment. The aim of the project is to provide an assistive socially interactive robotic aid. The main focus of this paper is on the localisation system of ‘LUCAS’. A continuous localisation process is used which relies on monocular vision and ultrasonic range readings. The process employ’s methods of straight-line-extraction, vanishing point estimation and ultrasonic pattern detection. The correspondence space is reduced by splitting the navigable space into localisation variant regions. The pose is calculated for each localisation hypothesis within the particular region and is used to correct the motion of the robot before it enters th...

http://hdl.handle.net/10344/2652

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Effects of increasing levothyroxine on pregnancy outcomes in women with uncontrolled hypothyroidism (2018)

Maraka, Spyridoula; Singh Ospina, Naykky M.; O'Keeffe, Derek T.; Rodriguez-Gutierr...

Effects of increasing levothyroxine on pregnancy outcomes in women with uncontrolled hypothyroidism (2018)

Maraka, Spyridoula; Singh Ospina, Naykky M.; O'Keeffe, Derek T.; Rodriguez-Gutierrez, Rene; Espinosa De Ycaza, Ana E.; Wi, Chung-Il; Juhn, Young J.; Coddington, Charles C.; Montori, Victor M.

Abstract:

Objective Uncontrolled hypothyroidism has been associated with an increased risk of adverse pregnancy outcomes. We aimed to assess the effectiveness of increasing levothyroxine (LT4) dose on reducing the risk of adverse outcomes for pregnant women with TSH level greater than the recommended 1st trimester limit. Design, Patients, Measurements We reviewed the electronic medical records of pregnant women evaluated from January 2011 to December 2013, who had history of LT4-treated hypothyroidism and were found to have TSH &gt; 2.5 mIU/l in 1st trimester. Women were divided into two groups: group A - LT4 dose was increased within two weeks from the TSH test, group B - LT4 dose remained stable. We compared the frequency of pregnancy loss (primary outcome) and other prespecified pregnancy-related adverse outcomes between groups. Results There were 85 women in group A (median TSH: 5.0, interquartile range 3.8-6.8 mIU/l) and 11 women in group B (median TSH: 4.5, interquartile range 3...

http://hdl.handle.net/10379/12640

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Effects of levothyroxine therapy on pregnancy outcomes in women with subclinical hypothyroidism (2018)

Maraka, Spyridoula; Singh Ospina, Naykky M.; O'Keeffe, Derek T.; Rodriguez-Gutierr...

Effects of levothyroxine therapy on pregnancy outcomes in women with subclinical hypothyroidism (2018)

Maraka, Spyridoula; Singh Ospina, Naykky M.; O'Keeffe, Derek T.; Rodriguez-Gutierrez, Rene; Espinosa De Ycaza, Ana E.; Wi, Chung-Il; Juhn, Young J.; Coddington, Charles C.; Montori, Victor M.; Stan, Marius N.

Abstract:

Background: Subclinical hypothyroidism (SCH) has been associated with increased risk of adverse pregnancy outcomes in some, but not all, studies. Uncertainty remains regarding the impact of levothyroxine (LT4) therapy on improving health outcomes in pregnant women with SCH. The objective of this study was to assess the potential benefits of LT4 therapy in pregnant women with SCH. Methods: The medical records were reviewed of pregnant women with SCH, defined as an elevated serum thyrotropin (TSH) of &gt;2.5 mIU/L for the 1st trimester or &gt;3 mIU/L for the 2nd and 3rd trimesters, but &lt;= 10 mIU/L. Pregnant women were divided into two groups depending on whether they received LT4 (group A) or not (group B). Pregnancy loss and other pre-specified adverse outcomes were evaluated during follow-up. Results: There were 82 women in group A and 284 in group B. Group A had a higher body mass index (p = 0.04) and a higher serum TSH level (p &lt; 0.0001) compa...

http://hdl.handle.net/10379/12641

Displaying Results 1 - 3 of 3 on page 1 of 1