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Search Results: 1 - 10 of 88 matches for " Lennox Hoyte "
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Biomechanical Mapping of the Female Pelvic Floor: Prolapse versus Normal Conditions  [PDF]
Vladimir Egorov, S. Abbas Shobeiri, Peter Takacs, Lennox Hoyte, Vincent Lucente, Heather van Raalte
Open Journal of Obstetrics and Gynecology (OJOG) , 2018, DOI: 10.4236/ojog.2018.810093
Abstract: Background: Quantitative biomechanical characterization of pelvic supportive structures and functions in vivo is thought to provide insight into pathophysiology of pelvic organ prolapse (POP). An innovative approach—vaginal tactile imaging—allows biomechanical mapping of the female pelvic floor to quantify tissue elasticity, pelvic support, and pelvic muscle functions. The Vaginal Tactile Imager (VTI) records high definition pressure patterns from vaginal walls under an applied tissue deformation and during pelvic floor muscle contractions. Objective: To explore an extended set of 52 biomechanical parameters for differentiation and characterization of POP relative to normal pelvic floor conditions. Methods: 96 subjects with normal and POP conditions were included in the data analysis from multi-site observational, case-controlled studies; 42 subjects had normal pelvic floor conditions and 54 subjects had POP. The VTI, model 2S, was used with an analytical software package to calculate automatically 52 biomechanical parameters for 8 VTI test procedures (probe insertion, elevation, rotation, Valsalva maneuver, voluntary muscle contractions in 2 planes, relaxation, and reflex contraction). The groups were equalized for subject age and parity. Results: The ranges, mean values, and standard deviations for all 52 VTI parameters were established. 33 of 52 parameters were identified as statistically sensitive (p < 0.05; t-test) to the POP development. Among these 33 parameters, 11 parameters show changes (decrease) in tissue elasticity, 8 parameters
A Short Term Review of Operated Cases in the Plastic Surgery Unit at the Komfo Anokye Teaching Hospital, Kumasi, Ghana  [PDF]
Pius Agbenorku, Paa Ekow Hoyte-Williams, Isaac Kofi Omari
Modern Plastic Surgery (MPS) , 2013, DOI: 10.4236/mps.2013.33020
Abstract:

Introduction: Surgical problems are of much disturbance to the world and should therefore be given serious attention. The prevalence of these surgical problems, has made plastic surgery become a broadly relevant and acceptable way for addressing problems like injuries, congenital anomalies, surgical infections and malignancies among others. Aim: This study is to quantify and characterize surgical procedures done in the plastic surgery theatre located in the new Accident and Emergency (A & E) Building of KATH. Materials and Methods: Data were obtained from the Operation Register/Theatre Books in the plastic surgery theatre at the A & E Centre on cases operated on from October 1, 2009 to September 30, 2012. Data entry, presentation and analysis were done using Statistical Package for the Social Sciences (SPSS) 20.0 version. Results: Adults formed the majority of patients who sought for plastic surgery with a percentage of 70.3%. The male patients also outnumbered the females recording (61.5%) out of the total number of patients. Most of the cases recorded were acquired cases (93.2%). Reconstructive surgery was the commonest operation performed (30%); in 53.8% cases general anaesthesia was used. Conclusion: Among all the procedures used reconstructive surgery was the commonest surgery performed in the unit and general anaesthesia was the most type of anaesthesia used for the operations.

Doyen-Wilson results for odd length cycle systems
Daniel Horsley,Rosalind A. Hoyte
Mathematics , 2014,
Abstract: For each odd $m \geq 3$ we completely solve the problem of when an $m$-cycle system of order $u$ can be embedded in an $m$-cycle system of order $v$, barring a finite number of possible exceptions. In cases where $u$ is large compared to $m$, where $m$ is a prime power, or where $m \leq 15$, the problem is completely resolved. In other cases, the only possible exceptions occur when $v-u$ is small compared to $m$. This result is proved as a consequence of a more general result which gives necessary and sufficient conditions for the existence of an $m$-cycle decomposition of a complete graph of order $v$ with a hole of size $u$ in the case where $u \geq m-2$ and $v-u \geq m+1$ both hold.
NPPF and Archaeology: A Discussion
Rob Lennox
Papers from the Institute of Archaeology , 2013, DOI: 10.5334/pia.398
Abstract: Flatman and Perring have demonstrated in this article that the NPPF has thus far engendered mixed emotions for those of us working in the historic environment sector, but they seem to suggest that the overriding sense is one of relief after a fearful consultation process; the stormy waters have died down and it looks like steady sailing ahead. However, perhaps the real problem lies in the fact that the promising winds of change have dropped too, and that our ship may be in danger of being becalmed.
Conservative treatment of unruptured Ectopic pregnancy in Jamaica  [PDF]
Horace Fletcher, Keisha Buchanan, Lennox Jacob
Open Journal of Obstetrics and Gynecology (OJOG) , 2011, DOI: 10.4236/ojog.2011.11002
Abstract: Medical treatment with methotrexate is now successfully replacing conservative surgical treatment in selected patients. We reviewed patients treated with methotrexate, compared to salpingectomy and salpingostomy between 1990 to 1995 and 2000 to 2003. For 1990-1995 there were 21 conservative surgical treatments (5.3% ectopic pregnancies). The ratio of ectopic to normal deliveries was 1:24. Medical treatment was done for 19 pregnancies (3.4% of ectopic pregnancies) for 2000 to 2003. During the period there was an ectopic rate of 1:16.8 births. Patients treated medically were similar to those treated surgically except that none reportedly having rebound tenderness and only 1/18 having an ultrasound scan showing a foetal heart and none with a gestational sac >4cm. In the medically treated group the success rate was 68% while in the surgically treated groups success was 100%. There was no significant difference in the parameters in the conservative surgical and medically treated groups
Numerical Accuracy of the Kiva4 Code under Different Ignition Timing on the Combustion Characteristics of Gasoline in a Spark Ignition Engine  [PDF]
Joseph Lungu, Lennox Siwale, Edwin Luwaya
Journal of Power and Energy Engineering (JPEE) , 2018, DOI: 10.4236/jpee.2018.611008
Abstract: The purpose of this work was to show that kiva4 is more accurate than kiva3vr2 under different ignition timings. The numerical accuracy of kiva4 was compared with the numerical results obtained by other researchers who used kiva3vr2 as the simulation code. The combustion characteristics of gasoline under different ignition timings are obtained using the kiva4 code. For achieving this, two cases were investigated; a complete engine cycle was successfully simulated using a four-valve pent-roof engine and a comparison was made with experimental results by other researchers. At a constant speed of 600 rpm, a BASF (Badische Anilin-und Soda Fabrik) octane rating engine-single cylinder was used where ignition timing was changed in the range of 4° BTDC to 18° BTDC. Kiva4 generates more accurate results than kiva3vr2. The experimental results were more in agreement with kiva4 than kiva3vr2 results. The average temperature and pressure in kiva4 were 640 K and 16.48 bars while in kiva3vr2 were 600 K and 14.83 bars, the peak temperature and pressure in kiva4 were 2316.3 K and 21.5 bars while in kiva3vr2 were 2171.5 K and 19.4 bars. The peak temperature and pressure increase with increasing spark advance until the most favorable instant time is determined. Best performance was achieved when the ignition time was set to 10 degrees before top dead center.
History and Philosophy of Science: a Phylogenetic approach
Lennox, James G.;
História, Ciências, Saúde-Manguinhos , 2001, DOI: 10.1590/S0104-59702001000400008
Abstract: in the aftermath of thomas kuhn's the structure of scientific revolutions, there was a great deal of discussion about the relationship between the history of science and the philosophy of science. a wider issue was at stake in these discussions: 'normativism' versus 'naturalism' in epistemology. if the history of science, at best, gives us reliable information about what actually occurred historically, how can it inform debates about such things as confirmation or explanation in philosophy of science? this essay makes a case for the centrality of historical investigation in the philosophy of science. i will defend what i term the 'phylogenetic' approach to the philosophy of science. i will argue that since the foundations and dominant methods of a particular scientific field are shaped by its history, studying that history can give us considerable insight into conceptual and methodological problems in a particular science. the case will be made both on general, philosophical grounds, and by compelling instantiation.
History and Philosophy of Science: a Phylogenetic approach
Lennox James G.
História, Ciências, Saúde-Manguinhos , 2001,
Abstract: In the aftermath of Thomas Kuhn's The structure of scientific revolutions, there was a great deal of discussion about the relationship between the History of Science and the Philosophy of Science. A wider issue was at stake in these discussions: 'normativism' versus 'naturalism' in Epistemology. If the History of Science, at best, gives us reliable information about what actually occurred historically, how can it inform debates about such things as confirmation or explanation in Philosophy of Science? This essay makes a case for the centrality of historical investigation in the Philosophy of Science. I will defend what I term the 'Phylogenetic' approach to the Philosophy of Science. I will argue that since the foundations and dominant methods of a particular scientific field are shaped by its history, studying that History can give us considerable insight into conceptual and methodological problems in a particular Science. The case will be made both on general, philosophical grounds, and by compelling instantiation.
Charles Darwin, Geologist by Sandra Herbert
James G. Lennox
Aestimatio : Critical Reviews in the History of Science , 2007,
Abstract:
Aristoteles chemicus. Il IV libro dei 'Meteorologica' nel la tradizione antica e medievale edited by Cristina Viano
James G. Lennox
Aestimatio : Critical Reviews in the History of Science , 2004,
Abstract:
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