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Search Results: 1 - 10 of 366 matches for " Antonios Likourezos "
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Does the Nature of Chief Complaint, Gender, or Age Affect Time to Be Seen in the Emergency Room  [PDF]
Ayesha Sattar, Kenneth Sable, Antonios Likourezos, Christian Fromm, John Marshall
Open Journal of Emergency Medicine (OJEM) , 2014, DOI: 10.4236/ojem.2014.22006

Objectives: EM physicians may be biased in seeing patients presenting with nonspecific complaints or requiring more extensive work-ups. The goal of our study was to ascertain if chief complaint affected time to be seen (TTBS) in the ED. Methods: A retrospective report was generated from the EMR for all moderate acuity patients who visited the ED from January 2005 to December 2010 at a large urban teaching hospital. Abdominal pain, alcohol intoxication, back pain, chest pain, cough, dyspnea, dizziness, fall, fever, flank pain, headache, infection, pain (nonspecific), psychiatric evaluation, “sent by MD”, vaginal bleeding, vomiting, and weakness were the most common complaints. Non-Parametric Independent Sample Tests assessed median TTBS between complaints, gender, and age. Chisquare testing assessed for differences in the distribution of arrival times. Results: We obtained data from 116,194 patients. Patients presenting with weakness and dizziness waited the longest time of 35 minutes and patients with flank pain waited the shortest with 24 minutes. Males waited 30 minutes and females waited 32 minutes. Younger females between the ages of 18 - 50 waited significantly longer when presenting with a chief complaint of abdominal pain, chest pain, or flank pain. There was no difference in the distribution of arrival times for these complaints. Conclusion: There is a significant bias toward seeing young male patients more quickly than women or older males. Patients might benefit from efforts to educate EM physicians on the delays and potential quality issues associated with this bias in an attempt to move toward more egalitarian patient selection.

Evaluation of Emergency Medicine Community Educational Program
Garcia, Estevan Adan,Likourezos, Antonios,Ramsay, Carl,Hoffman, Sherry
Western Journal of Emergency Medicine : Integrating Emergency Care with Population Health , 2010,
Abstract: Out-of-hospital emergencies occur frequently, and laypersons are often the first to respond to these events. As an outreach to our local communities, we developed “Basic Emergency Interventions Everyone Should Know,” a three-hour program addressing cardiopulmonary resuscitation and automated external defibrillator use, heart attack and stroke recognition and intervention, choking and bleeding interventions and infant and child safety. Each session lasted 45 minutes and was facilitated by volunteers from the emergency department staff. A self-administered 13-item questionnaire was completed by each participant before and after the program. A total of 183 participants completed the training and questionnaires. Average score pre-training was nine while the average score post-training was 12 out of a possible 13 (P< .0001). At the conclusion of the program 97% of participants felt the training was very valuable and 100% would recommend the program to other members of their community. [West J Emerg Med. 2010;11(5):416-418.]
The Usefulness of Procalcitonin in the Diagnosis of Appendicitis in Children: A Pilot Study
Abu N. G. A. Khan,Abdel Sawan,Antonios Likourezos,Mark Schnellinger
Emergency Medicine International , 2012, DOI: 10.1155/2012/317504
The Usefulness of Procalcitonin in the Diagnosis of Appendicitis in Children: A Pilot Study
Abu N. G. A. Khan,Abdel Sawan,Antonios Likourezos,Mark Schnellinger,Estavan Garcia
Emergency Medicine International , 2012, DOI: 10.1155/2012/317504
Abstract: Objective. To assess the predictive value of procalcitonin in detecting acute appendicitis (AP) in children, and to determine a cutoff value of procalcitonin which can safely include/exclude the diagnosis of acute appendicitis in children with acute abdominal pain. Methods. Prospective cohort study of children aged 5–17 years presenting to the emergency room with right lower quadrant (RLQ) tenderness and strong suspicion for acute AP. In addition to standard diagnostic workup for acute AP, a quantitative procalcitonin level was measured using immunoluminometric assay. Recursive partitioning model was used to assess the usefulness of procalcitonin in the diagnosis of appendicitis. Results. Of the 50 children studied, 48% were diagnosed to have AP. The mean procalcitonin level was higher among the children with appendicitis ( ). Using the recursive partitioning model, we identified a cutoff value of procalcitonin level of 0.39 with a likelihood ratio presence of appendicitis 3.25 and absence of appendicitis 0.8. None of the study subjects with procalcitonin level <0.39 and WBC count of <6.76?K had appendicitis. Conclusions. In conjunction with the clinical symptoms, a procalcitonin level and WBC count could be a strong predictor of acute appendicitis in children. 1. Introduction Abdominal pain is one of the most frequently encountered complaints in the pediatric emergency room (ER). The approach to a child with abdominal pain often presents a dilemma to the pediatric ER staff. The pediatric ER physician and surgeon must be able to develop a differential diagnosis based on the clinical presentation of the child, in order to formulate a final diagnosis. Amongst the numerous etiologies of abdominal pain in children, acute appendicitis is one of the most common one that requires immediate intervention. Appendicitis affects 6% of the population [1, 2]. Morbidity and mortality rates are related to the time from the first onset of symptoms to the definitive diagnosis. Complications of misdiagnosing appendicitis include intraabdominal abscess, wound infection, adhesion formation, bowel obstruction, and infertility. The ability to diagnose acute appendicitis, reliably, is not clear-cut. Along the way, various predictive indicators have been researched to help make the diagnosis of acute appendicitis easier. In general, any patient with abdominal pain and more specifically, right lower quadrant tenderness, is approached with the goal of eliciting enough evidence to be able to rule in or out acute appendicitis. Information is gathered via clinical examination,
On the Validity of Janak’s Theorem and Ground State Energies of Ensembles of Interacting Quantum N-Particle Systems  [PDF]
Antonios Gonis
World Journal of Condensed Matter Physics (WJCMP) , 2014, DOI: 10.4236/wjcmp.2014.42012

It is established that for finite number of electrons, N < , and in the limit T = 0, the line of reasoning leading to the proof of Janak’s theorem is flawed, based on the incorrect treatment of a mixed state as a pure state. The derivative discontinuity at integral values of N of the total ground state energy, Ev[N], of an interacting N-particle system under an external single-particle potential, v(r), is shown to follow from general quantum principles governing the behavior of ensembles of systems with varying particle number, and its presence is shown to be independent of the particular approximation used in determining the total ground-state energy of an ensemble.

Foliar Applications with Plant-Derived Extracts Control Pistachio Psyllid, Agonoscena pistaciae  [PDF]
Antonios E. Tsagkarakis, Antonios D. Margiotoudis
Advances in Entomology (AE) , 2017, DOI: 10.4236/ae.2017.53008
Abstract: Citrus and palm trees’ extracts, commercially formulated as ProAlexin PNSTM and AgrisprayTM, were studied against the pistachio psyllid, Agonoscena pistaciae, in field conditions. Generally, foliage spraying application against the pistachio psyllid may cause severe reduction on the honeybee forager population, which visits infested trees to collect honeydew. ProAlexinTM products have the same formulation with Provigoro 14 WA Bee Care, a natural water acidifier, which not only has negative action on the honeybees, but also shows disinfectant action against Nosema spp. The scope of the present study was to determine any effect of ProAlexin products on the reduction of the population of the pistachio psyllid, Agonoscena pistaciae. Experiments were performed at the orchard of the A.U.A., with two mixtures sprayed on psyllid infested pistachio trees, the first with ProAlexin PNSTM and AgrisprayTM and the second only with AgrisprayTM. They were both applied with the addition of APG25TM non-ionic surfactant. Results showed that mortality on the trees treated with ProAlexin PNSTM + AgrisprayTM mixture and AgrisprayTM was significantly higher compared with the control. This could be explained due to the phytoalexins that these products elicit, which are part of the plant mechanism against insect herbivores. These products are potentially promising methods to be used in sustainable agriculture approaches against the pistachio psyllid and they should be tested for their effects on the biological control agents of this pest. Beyond this, the results of this study encourage to test their effects on other pests of pistachio and other tree species.
Grupo de atividades com crian?as: processo de humaniza??o
Terzis, Antonios;
Estudos de Psicologia (Campinas) , 2005, DOI: 10.1590/S0103-166X2005000300007
Abstract: the present study objective is the description of children group activities in order to provide a better comprehension about the psychotherapeutic performance in cases of adaptation difficulties. seven children (both genders), whose ages were from four to six years old, formed the group. the data analysis was qualitative. the activity groups have promoted children interaction, and the group has contributed to strength children's ego that is in development process. playing was a communication apparatus that has facilitated the establishment of a closer relationship among children, as it was a significant tool to express feelings, desires and fantasies.
Economic Returns and Risks to Investment in Education: An Application of the Multifactor CAPM
Antonios Athanassiadis
International Journal of Economic Sciences and Applied Research , 2011,
Abstract: Considering the investment in education as uncertain financial decision making we modify the short-cut method of calculating rates of return to education by incorporating the risk premium. Recognizing that market risk isn’t the only factor affecting returns, we estimate the returns to education in fifteen member - states of the European Union and the Organisation for Economic Co-operation and Development during the period 2005 – 2007 as seen from a macroeconomic point of view using Multifactor CAPM.Following this model we assess, except market risk, the impact of three key macroeconomic variables (investments, productivity and unemployment) on returns and, using panel data regression techniques, we investigate whether this holds true with respect to investment in education. We also evaluate the risk – adjusted performance of investment in education and the role of returns as well as that of the key macroeconomic variables to economic development. The results tend to confirm the theoretical expectations and empirical literature.The purpose of the present study is twofold: first, to estimate the relationship between education returns and risk and second to measure the impact of return and key macro factors on real GDP growth rate, therefore casting light in the channels through which the economicgrowth can be affected.
Financial development and economic growth. An empirical analysis for Ireland
Antonios Adamopoulos
International Journal of Economic Sciences and Applied Research , 2010,
Abstract: This study investigated the relationship between financial development and economicgrowth for Ireland for the period 1965-2007 using a vector error correction model (VECM).Questions were raised whether financial development causes economic growth or reverselytaking into account the positive effect of industrial production index. Financial marketdevelopment is estimated by the effect of credit market development and stock marketdevelopment on economic growth. The objective of this study was to examine the long-runrelationship between these variables applying the Johansen cointegration analysis takinginto account the maximum eigenvalues and trace statistics tests. Granger causality testsindicated that economic growth causes credit market development, while there is a bilateralcausal relationship between stock market development and economic growth. Therefore, itcan be inferred that economic growth has a positive effect on stock market development andcredit market development taking into account the positive effect of industrial productiongrowth on economic growth for Ireland.
Equicontinuity of iterates of circle maps
Antonios Valaristos
International Journal of Mathematics and Mathematical Sciences , 1998, DOI: 10.1155/s0161171298000623
Abstract: Let f be a continuous map of the circle to itself. Necessary and sufficient conditions are given for the family ofiterates {fn}n=1 ¢ to be equicontinuous.
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