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THE IMPACT OF SALES MANAGERS’ MARKET ORIENTATION ON MARKETING-SALES CONFLICT AND COMPANY PERFORMANCE
Konstantinos Lionakis,George J. Avlonitis 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.2
This paper is exploring the role of market orientation adoption by the Sales managers in the creation of effective cross functional relationship between Marketing and Sales and in company performance. Based on data collected from both Marketing and Sales managers in 132 consumer packaged goods companies, the study shows that higher levels of market orientation by the Sales managers are reducing the level of Marketing-Sales conflict as perceived by the Marketing managers and enhancing important performance metrics. The implications of the study for both theory and practice are discussed.
Effect of resistance exercise training on Crohn’s disease patients
( Konstantinos Papadimitriou ) 대한장연구학회 2021 Intestinal Research Vol.19 No.3
Crohn’s disease (CD) is observed with increased levels of cytokines which cause inflammation in many parts of the digestive tract. Aerobic exercise contributes to the reduction of the intestine’s inflammation and increases the quality of life. Another type of exercise that shows research interest about its effects on CD symptoms is the resistance exercise (RE). The aim of the study was to review the influence of RE on CD patients. The study’s literature was collected from PubMed and Scholar databases. According to the results, the main phase of a RE training program must have a gradual increase of intensity (60%-80%) and resting periods of 15-30 seconds after each exercise, and 2-3 minutes between exercises. Also, CD patients who were in remission improved the muscle strength and quality of life via their participation in RE training program. However, the secretion of interleukin-6 in both CD and RE contributes in various physiological mechanisms setting a contradictory role in the effectiveness of RE at the disease’s inflammatory situation. So, the use of RE training in CD patients needs more research for safer participation. (Intest Res 2021;19:275-281)
A Fuzzy AHP Model for Assessing the Condition of Metro Stations
Konstantinos Kepaptsoglou,Matthew G. Karlaftis,Jason Gkountis 대한토목학회 2013 KSCE JOURNAL OF CIVIL ENGINEERING Vol.17 No.5
Service quality, performance, and attractiveness of transit systems are related to the condition of their infrastructures; it is therefore desirable for transit infrastructures to be in the best possible condition and offer an attractive, safe, and friendly environment for travelers. This paper presents a model for rating the condition and performance of transit infrastructures and particularly metro stations; the model is derived based on the opinion of a group of experts (group decision making) and explicitly considers uncertainty. Data from the Athens Metro system are used and a Fuzzy Analytical Hierarchy Process technique is exploited in an effort to capture inherent uncertainties and ambiguities found in expert opinions. Results were compared to those of regular AHP and it was found that based upon the degree of uncertainty, differences in resulting weights could be up to 8%.
A nonlinear model for ultimate analysis and design of reinforced concrete structures
Konstantinos Morfidis,Panos D. Kiousis,Hariton Xenidis 사단법인 한국계산역학회 2014 Computers and Concrete, An International Journal Vol.14 No.6
This paper presents a theoretical and computational approach to solve inelastic structures subjected to overloads. Current practice in structural design is based on elastic analysis followed by limit strength design. Whereas this approach typically results in safe strength design, it does not always guarantee satisfactory performance at the service level because the internal stiffness distribution of the structure changes from the service to the ultimate strength state. A significant variation of relative stiffnesses between the two states may result in unwanted cracking at the service level with expensive repairs, while, under certain circumstances, early failure may occur due to unexpected internal moment reversals. To address these concerns, a new inelastic model is presented here that is based on the nonlinear material response and the interaction relation between axial forces and bending moments of a beam-column element. The model is simple, reasonably accurate, and computationally efficient. It is easy to implement in standard structural analysis codes, and avoids the complexities of expensive alternative analyses based on 2D and 3D finite-element computations using solid elements.
Konstantinos Diogeni Vasiliadi 한국간담췌외과학회 2021 Annals of hepato-biliary-pancreatic surgery Vol.25 No.3
The “artery-first” approach pancreaticoduodenectomy, with maximal mesopancreas excision and central vascular ligation, represents the current principal determinants of radicality in pancreatic head cancer resection. However, these modifications at the resection stage of pancreaticoduodenectomy constitute extremely demanding and technically complicated procedures. Among the most critical contributing factors in the difficulty of artery-first approaches is the spiral configuration of the mesoduodenum and proximal mesojejunum around the superior mesenteric artery axis. This creates complicated tridimensional anatomy, making surgical dissection in the inferior peripancreatic anatomic area extremely challenging and demanding. The Cattell–Braasch–Valdoni maneuver (right-sided medial visceral mobilization and intestinal derotation maneuver) restores the embryological twist of the duodenojejunal junction, which demystifies the distorted peripancreatic vascular anatomy and facilitates a safe and radical “mesopancreas-first” pancreatic head cancer resection. The aim of this paper was to present the advantages, efficacy, and safety of the Cattell–Braasch–Valdoni maneuver in artery-first approach radical pancreaticoduodenectomy and provide a detailed description of its surgical technique.
Konstantinos Tserpes 한국통신학회 2019 ICT Express Vol.5 No.2
Broad deployment of IoT solutions has resulted in the emergence of a large number of applications that generate value from processing the resulting high-frequency data streams. To meet the temporal requirements of those arbitrary simple applications, practitioners commonly employ monolithic approaches. However, the need for low cost and reusable solutions have rendered those approaches obsolete. This paper addresses this issue by discussing how microservice architectures (MSA) can deliver robust and low-cost solutions to manage the data load and real-time requirements. The motivation is to provide a methodology (stream-MSA) that will enable the easy and effective migration of suchlike applications to an MSA approach.
Design Loads on Railway Substructure
Konstantinos GIANNAKOS 한국철도학회 2014 International Journal of Railway Vol.7 No.2
The superstructure of the railway track undertakes the forces that develop during train passage and distributes them towards its seating. The track panel plays a key role in terms of load distribution, while at the same time it maintains the geometrical distance between the rails. The substructure and ballast undergo residual deformations under high stresses that contribute to the deterioration of the so-called geometry of the track. The track stiffness is the primary contributing factor to the amount of the stresses that develop on the substructure and is directly influenced by the fastening resilience. Four methods from the international literature are used in this paper to calculate the loads and stresses on the track substructure and the results are compared and discussed. A parametric investigation of the stresses that develop on the substructure of different types of railway tracks (i.e. balastless vs ballasted) is performed and the results are presented as a function of the total static track stiffness.
The Elasticity of Substitution across Maturities in International Capital Markets: A Simple Test
( Konstantinos Drakos ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 2005 Journal of Economic Integration Vol.20 No.4
The paper tests the hypothesis of a maturity-independent foreign exchange risk premium or equivalently of a constant elasticity of substitution of international assets across the maturity spectrum. The empirical findings indicate that elasticity of substitution is indeed a function of maturity. In addition, the premia are found to be a monotonic function of the maturity distance between assets.
One-year Outcome of First vs. Later Episode Schizophrenia: A Real-world Naturalistic Study
Konstantinos N. Fountoulakis,Panagiotis Panagiotidis,Antonis T. Theofilidis,Ioannis Nimatoudis 대한정신약물학회 2020 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.18 No.3
Objective: The aim the study was to calculate remission, recovery and relapse rates in first episode patients with schizophrenia (FES) vs. patients at a later phase (non-FES). Methods: Thirty-two FES and 101 non-FES patients took part in the study. The assessment included testing at baseline and at 1 year with the Positive and Negative Syndrome Scale (PANSS), Calgary Depression scale, State-Trait Anxiety Inventory (STAI), Udvalg for Kliniske Undersøgelser (UKU) scale, Simpson Angus, and General Assessment of Functioning (GAF) subscale. The statistical analysis included chi-square test and analysis of covariance. Results: At baseline 15.62% FES vs. 10.89% non-FES patients were in remission; none of FES vs. 2.97% non-FES patients were in recovery. At endpoint, the respective figures were 12.50% vs. 25.00% and 3.12% vs. 3.96%. None of the differences in rates was significant between the two groups except from the percentage of patients being under medication (higher in the non-FES group). Baseline PANSS negative subscale (PANSS-N) was the only predictor of the outcome at endpoint. Conclusion: The current study reported very low rates of remission and recovery of patients with schizophrenia without any differences between FES and non-FES patients. One possibility is that the increased antipsychotic treatment compensates for the worsening of the illness with time. An accumulating beneficial effect of antipsychotic treatment suggested that early lack of remission is not prognostic of a poor outcome.
Review : Methanogens, Methane and Gastrointestinal Motility
( Konstantinos Triantafyllou ),( Christopher Chang ),( Mark Pimentel ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2014 Journal of Neurogastroenterology and Motility (JNM Vol.20 No.1
Anaerobic fermentation of the undigested polysaccharide fraction of carbohydrates produces hydrogen in the intestine which is the substrate for methane production by intestinal methanogens. Hydrogen and methane are excreted in the flatus and in breath giving the opportunity to indirectly measure their production using breath testing. Although methane is detected in 30%-50% of the healthy adult population worldwide, its production has been epidemiologically and clinically associated with constipation related diseases, like constipation predominant irritable bowel syndrome and chronic constipation. While a causative relation is not proven yet, there is strong evidence from animal studies that methane delays intestinal transit, possibly acting as a neuromuscular transmitter. This evidence is further supported by the universal finding that methane production (measured by breath test) is associated with delayed transit time in clinical studies. There is also preliminary evidence that antibiotic reduction of methanogens (as evidenced by reduced methane production) predicts the clinical response in terms of symptomatic improvement in patients with constipation predominant irritable bowel syndrome. However, we have not identified yet the mechanism of action of methane on intestinal motility, and since methane production does not account for all constipation associated cases, there is need for high quality clinical trials to examine methane as a biomarker for the diagnosis or as a biomarker that predicts antibiotic treatment response in patients with constipation related disorders. (J Neurogastroenterol Motil 2014;20:31-40)