Epidemiology of STI and HIV: An Overview of Concentration and Geographical and Temporal Dispersion

2012 ◽  
pp. 33-63 ◽  
Author(s):  
Peter J. White
Keyword(s):  
Temporal Dispersion

scholarly journals The neurophysiological lesson from the Italian CIDP database

2021 ◽  
Author(s):  
Emanuele Spina ◽  
◽  
Pietro Emiliano Doneddu ◽  
Giuseppe Liberatore ◽  
Dario Cocito ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Odds Ratio ◽  
Motor Nerve ◽  
Lower Number ◽  
Chronic Inflammatory Demyelinating Polyradiculoneuropathy ◽  
Curve Analysis ◽  
Roc Curve Analysis ◽  
Electrophysiological Data ◽  
Electrophysiological Examination ◽  
Temporal Dispersion

Abstract Introduction Electrophysiological diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) may be challenging. Thus, with the aim ofproviding some practical advice in electrophysiological approach to a patient with suspected CIDP, we analyzed electrophysiological data from 499 patients enrolled inthe Italian CIDP Database. Methods We calculated the rate of each demyelinating feature, the rate of demyelinating features per nerve, the diagnostic rate for upper andlower limb nerves, and, using a ROC curve analysis, the diagnostic accuracy of each couple of nerves and each demyelinating feature, for every CIDP subtype.Moreover, we compared the electrophysiological data of definite and probable CIDP patients with those of possible and not-fulfilling CIDP patients, and by a logisticregression analysis, we estimated the odds ratio (OR) to make an electrophysiological diagnosis of definite or probable CIDP. Results The ulnar nerve had the highestrate of demyelinating features and, when tested bilaterally, had the highest diagnostic accuracy except for DADS in which peroneal nerves were the most informative.In possible and not-fulfilling CIDP patients, a lower number of nerves and proximal temporal dispersion (TD) measurements had been performed compared to definiteand probable CIDP patients. Importantly, OR for each tested motor nerve and each TD measurement was 1.59 and 1.33, respectively. Conclusion Our findingsdemonstrated that the diagnosis of CIDP may be missed due to inadequate or incomplete electrophysiological examination or interpretation. At the same time, thesedata taken together could be useful to draw a thoughtful electrophysiological approach to patients suspected of CIDP.

Soliton solutions to KdV equation with spatio-temporal dispersion

2016 ◽  
Vol 114 ◽  
pp. 192-203 ◽  
Author(s):  
Houria Triki ◽  
Turgut Ak ◽  
Seithuti Moshokoa ◽  
Anjan Biswas
Keyword(s):  
Kdv Equation ◽  
Soliton Solutions ◽  
Spatio Temporal ◽  
Temporal Dispersion

scholarly journals New optical solitons of perturbed nonlinear Schrödinger-Hirota equation with spatio-temporal dispersion

2021 ◽  
pp. 104656
Author(s):  
Lanre Akinyemi ◽  
Hadi Rezazadeh ◽  
Qiu-Hong Shi ◽  
Mustafa Inc ◽  
Mostafa M.A. Khater ◽  
...  
Keyword(s):  
Optical Solitons ◽  
Hirota Equation ◽  
Nonlinear Schrödinger ◽  
Spatio Temporal ◽  
Temporal Dispersion

scholarly journals Time-Resolved Reflectance Spectroscopy Applied to the Nondestructive Monitoring of the Internal Optical Properties in Apples

2001 ◽  
Vol 55 (10) ◽  
pp. 1368-1374 ◽  
Author(s):  
Rinaldo Cubeddu ◽  
Cosimo D'Andrea ◽  
Antonio Pifferi ◽  
Paola Taroni ◽  
Alessandro Torricelli ◽  
...  
Keyword(s):  
Optical Properties ◽  
Industrial Applications ◽  
Nondestructive Monitoring ◽  
Nondestructive Measurement ◽  
Time Resolved ◽  
Mean Values ◽  
Scattering Coefficients ◽  
Scattering Spectra ◽  
The Mean ◽  
Temporal Dispersion

Time-resolved reflectance has been used for the nondestructive measurement of optical properties in apples. The technique is based on the detection of the temporal dispersion of a short laser pulse injected into the probed medium. The time distribution of re-emitted photons interpreted with a solution of the diffusion equation yields the mean values of the absorption and reduced scattering coefficients of the medium. The proposed technique proved useful for the measurement of the absorption and scattering spectra of different varieties of apples, revealing the spectral shape of chlorophyll. No major variations were observed in the experimental data when the fruit was peeled, showing that the optical properties measured were those of the pulp. With this technique the change in chlorophyll absorption during storage and ripening could be followed. Finally, a compact prototype working at few selected wavelengths was designed and constructed, demonstrating potentialities of the technique for industrial applications.

scholarly journals Spatio-temporal dispersion of Aedes taeniorhynchus in Florida

2012 ◽  
Vol 16 ◽  
pp. e125
Author(s):  
M. Falkner ◽  
K.J. Linthicum ◽  
S.C. Britch ◽  
L. Mao ◽  
A. Tatem
Keyword(s):  
Aedes Taeniorhynchus ◽  
Spatio Temporal ◽  
Temporal Dispersion

scholarly journals Optical soliton perturbation with spatio-temporal dispersion having Kerr law nonlinearity by the variational iteration method

2020 ◽  
Vol 66 (4 Jul-Aug) ◽  
pp. 404
Author(s):  
O. González Gaxiola ◽  
A. Biswas ◽  
A. Kamis Alzahrani ◽  
M. R. Belic
Keyword(s):  
Iteration Method ◽  
Variational Iteration Method ◽  
Optical Soliton ◽  
Modal Dispersion ◽  
Soliton Perturbation ◽  
Variational Iteration ◽  
Kerr Law ◽  
Kerr Law Nonlinearity ◽  
Spatio Temporal ◽  
Temporal Dispersion

This paper studies optical soliton perturbation that appears with Kerr law nonlinearity having spatio-temporal dispersion. The numerical scheme adopted is the variational iteration method. The perturbation terms are of Hamiltonian type and stem from inter-modal dispersion, self-steepening and nonlinear dispersion. Both bright and dark solitons are taken into consideration.

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