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Search Results: 1 - 10 of 27946 matches for " Paul Boris Ngoyong Edu "
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Epidemiological Analysis of 135 Cases of Severe Traumatic Brain Injury Managed at a Surgical Intensive Care Unit  [PDF]
Aurélien Ndoumbe, Paul Boris Ngoyong Edu, Chantal Simeu, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.81010
Abstract: This study was a retrospective analysis of the epidemiologic profile of severe traumatic brain injuries managed at the surgical intensive care unit of the University Hospital Center of Yaoundé, Cameroon, between January 2011 and December 2015. All the patients admitted at the surgical intensive care unit for a traumatic brain injury with an initial Glasgow coma scale score ≤ 8 were included. One hundred and thirty-five cases were enrolled. One hundred and fourteen were males and 21 were females. Their mean age was 32.75 years. Forty-four patients were aged between 16 to 30 years. Road traffic accidents represented the first mode of injury with 101 cases and most of the patients were pedestrians hit by a car. Pupils and students were the most involved. Twenty-three patients had additional extracranial injury. On admission, 97 (71.85%) patients had GCS 7-8. A brain CT scan was done for 115 patients. Intracranial and intracerebral hemorrhages were the most frequent radiological findings with 57 cases. The overall mortality was 32.59% with 44 deaths. Thirty-two of the deaths occurred in patients with GCS 7 - 8 on admission. Ninety-one (67.40%) patients survived, 74 (54.81%) had persisting disabilities, while only 17 (12.59%) recovered fully. The following factors had an impact on the outcome: GCS at admission, pupillary anomalies, length of hospital stay, endotracheal intubation and surgery. Severe TBI remains a heavy socio-economic burden worldwide. In Cameroon where the health system is poorly organized, the outcome of individuals who sustained a severe TBI was dismal.
A nonholonomic Moser theorem and optimal transport
Boris Khesin,Paul Lee
Mathematics , 2008,
Abstract: We prove the following nonholonomic version of the classical Moser theorem: given a bracket-generating distribution on a connected compact manifold (possibly with boundary), two volume forms of equal total volume can be isotoped by the flow of a vector field tangent to this distribution. We describe formal solutions of the corresponding nonholonomic mass transport problem and present the Hamiltonian framework for both the Otto calculus and its nonholonomic counterpart as infinite-dimensional Hamiltonian reductions on diffeomorphism groups. Finally, we define a nonholonomic analog of the Wasserstein (or, Kantorovich) metric on the space of densities and prove that the subriemannian heat equation defines a gradient flow on the nonholonomic Wasserstein space with the potential given by the Boltzmann relative entropy functional.
Poisson geometry and first integrals of geostrophic equations
Boris Khesin,Paul Lee
Mathematics , 2008, DOI: 10.1016/j.physd.2008.03.001
Abstract: We describe first integrals of geostrophic equations, which are similar to the enstrophy invariants of the Euler equation for an ideal incompressible fluid. We explain the geometry behind this similarity, give several equivalent definitions of the Poisson structure on the space of smooth densities on a symplectic manifold, and show how it can be obtained via the Hamiltonian reduction from a symplectic structure on the diffeomorphism group.
Ultrasound-Guided Axillary Block in an Anticoagulated Patient after Heartmate II Implantation  [PDF]
Giuseppe Trunfio, Boris Yaguda, Paul C. Saunders, Dennis E. Feierman
Open Journal of Anesthesiology (OJAnes) , 2014, DOI: 10.4236/ojanes.2014.47022

Objective: This case exemplifies the understanding of the physiological changes associate with 1) Left Ventricular Assist Devices, 2) monitoring challenges associated with Left Ventricular Assist Devices and 3) the usefulness of peripheral nerve blocks in this subset of patients. Case report: A 73-year-old man was scheduled for left wrist arthroscopy and debridement to treat a very painful septic joint. He had undergone Heartmate II Left Ventricular Assist Device implantation uneventfully for Destination Therapy 4 months prior. The patient required maintenance of therapeutic anticoagulation. We elected for an ultrasound-guided axillary block, which limits the risks of vascular injury in presence of high INR. The axillary nerve block enabled us to overcome potential anesthetic problems in a patient with a continuous flow LVAD. Conclusion: The physiologic principles of Left Ventricular Assist Device function should be understood before the initiation of anesthesia. Regional Anesthesiologists can offer a very significant contribution to the safe care of patients with heart failure requiring a continuous flow Left Ventricular Assist Device.

The Need for Integration of Information and Communication Technology (ICT) into Teacher Training Programmes in Nigeria
DO Edu, GO Edu, S Adah
African Research Review , 2012,
Abstract: Information and Communication Technology (ICT) is a major factor in shaping a new global economy and producing rapid changes in society. In order to function in this new world economy, students and their teachers have to learn to deal with large amount of information. This entails the analysis of such information and making decisions based on the result of the analysis. In order to help students achieve these capabilities, the classroom teacher must be knowledgeable in the use of ICT tools. The teacher is responsible for creating a conducive classroom environment and preparing the learning opportunities that facilitate students use of technology to learn, communicate and develop knowledge product. It is therefore, critical that all classroom teachers are prepared to provide their students with these opportunities. This paper therefore, sets out to highlight the importance of ICT and the need to integrate same into the teacher training programmes in Nigeria.
Trevas e presságios: análise de "anoitecer" de Drummond
Edu Teruki Otsuka
ARS (S?o Paulo) , 2006,
Efficient Instrumentation for Performance Profiling
Edu Metz,Raimondas Lencevicius
Computer Science , 2003,
Abstract: Performance profiling consists of tracing a software system during execution and then analyzing the obtained traces. However, traces themselves affect the performance of the system distorting its execution. Therefore, there is a need to minimize the effect of the tracing on the underlying system's performance. To achieve this, the trace set needs to be optimized according to the performance profiling problem being solved. Our position is that such minimization can be achieved only by adding the software trace design and implementation to the overall software development process. In such a process, the performance analyst supplies the knowledge of performance measurement requirements, while the software developer supplies the knowledge of the software. Both of these are needed for an optimal trace placement.
A Performance Analysis Tool for Nokia Mobile Phone Software
Edu Metz,Raimondas Lencevicius
Computer Science , 2003,
Abstract: Performance problems are often observed in embedded software systems. The reasons for poor performance are frequently not obvious. Bottlenecks can occur in any of the software components along the execution path. Therefore it is important to instrument and monitor the different components contributing to the runtime behavior of an embedded software system. Performance analysis tools can help locate performance bottlenecks in embedded software systems by monitoring the software's execution and producing easily understandable performance data. We maintain and further develop a tool for analyzing the performance of Nokia mobile phone software. The user can select among four performance analysis reports to be generated: average processor load, processor utilization, task execution time statistics, and task execution timeline. Each of these reports provides important information about where execution time is being spent. The demo will show how the tool helps to identify performance bottlenecks in Nokia mobile phone software and better understand areas of poor performance.
Transylvanian Review of Administrative Sciences , 2009,
Abstract: Starting with the importance of allocation of the SAPARD funds (Special Accession Program for Agriculture and Rural Development) before Romania’s adherence to the European Union and the conclusions drawn from the implementation of this program in the county of Cluj, this paper examines the correlation between the territorial distribution and the conditions required from villages components for the countryside development.The development conditions were assessed through 12 indicators, organized in 4 groups of factors (,,demographics”, ,,isolation”,,,economy”, ,,infrastructure” and other ,,social factors”) evaluated on a 100 points scale synthesized in a ,,Global index of the development conditions” for each commune in part.The distribution of funds, of their projects and their value, both overall and on the various components measures were examined in the 75 communes of Cluj County, grouped in three main areas of rural realm: the deeply rural, intermediate rural and suburban rural.The resulting disparities led to the formulation of possible improving measures for the implementation of funds such as SAPARD, that continue to be allocated in the period after the integration.
High precision atom interferometry in a microgravity environment
Tycho Sleator,Paul R. Berman,Boris Dubetsky
Physics , 1999,
Abstract: We propose a set of experiments in which Ramsey-fringe techniques are tailored to probe transitions originating and terminating on the same ground state level. When pulses of resonant radiation, separated by a time delay $% T, $ interact with atoms, it is possible to produce Ramsey fringes having widths of order 1/T. If each pulse contains two counterpropagating travelling wave modes, the atomic wave function is split into two or more components having different center-of-mass momenta. Matter-wave interference of these components leads to atomic gratings, which have been observed in both spatially separated fields and time separated fields. Time-dependent signals can be transformed into frequency dependent signals, leading to ground state Ramsey fringes (GSRF). The signals can be used to probe many problems of fundamental importance: a precise measurement of the earth gravitational acceleration $g$ and residual gravity in a microgravity environment with an accuracy $6 10^{-9}g;$ the rotation rate measurement with an accuracy of 6 10^{-3} deg/h; the recoil frequency measurement. Since only transitions originating and terminating on the same ground state are involved, frequency measurements can be carried out using lasers phase-locked by quartz oscillators having relatively low frequency. Our technique may allow one to increase the precision by a factor of 100 (the rf- to quartz oscillator frequencies ratio) over previous experiments based on Raman-Ramsey fringes or reduce on the same factor requirements for frequency stabilization.
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