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      • SCOPUSKCI등재

        The Influence of Channel Integration Quality on Omni-Channel Shopping Intention and Shopper Satisfaction in the E-commerce Industry in Indonesia

        Yosua Giovanni WIDJAJA(Yosua Giovanni WIDJAJA ),Idris Gautama SO(Idris Gautama SO ),Rini SETIOWATI(Rini SETIOWATI ),Asnan FURINTO(Asnan FURINTO ) 한국유통과학회 2022 유통과학연구 Vol.20 No.12

        Purpose: The purpose of this study was to determine the effect of utilitarian value, hedonic value, channel integration quality on Omni- Channel Shopping Intention and shopper satisfaction in the e-commerce industry in Indonesia. Research design, data and methodology: This research method uses quantitative research methods with purposive sampling technique. The hypothesis was tested using SEM-PLS. Results: Based on the results of the analysis and discussion, it can be concluded that there is an influence between the Utilitarian value on the Omni-channel shopping intention, there is no effect between the hedonic value on the Omni-channel shopping intention, there is no influence between the quality of Channel integration on the Omni-channel shopping intention, there is an influence between the quality of Channel integration and the Omni-channel shopping intention between utilitarian values on shopper satisfaction, there is no effect between hedonic values on shopper satisfaction, there is an influence between channel integration quality on shopper satisfaction, and there is an influence between Omni-channel shopping intentions on shopper satisfaction. Conclusions: The findings of this study prove that Omni-Channel Shopping Intention is one of the most effective management and marketing techniques to enhance an important aspect of their company, namely an efficient and holistic consumer shopping experience.

      • KCI등재

        Use of the ultrasound-based total malignancy score in the management of thyroid nodules

        Giovanni Guido Pompili,Silvia Tresoldi,Anna Ravell,Alessandra Primolevo,Giovanni Di Leo,Gianpaolo Carrafiello 대한초음파의학회 2018 ULTRASONOGRAPHY Vol.37 No.4

        Purpose: The purpose of this study was to validate the role of the total malignancy score (TMS)in identifying thyroid nodules suspicious for malignancy through the sum of their ultrasoundfeatures. Methods: The local ethical committee approved this prospective observational study. Weexamined 231 nodules in 231 consecutive patients (164 females and 67 males; age range, 20 to87 years; median age, 59 years; interquartile range, 48 to 70 years) who underwent ultrasoundfollowed by fine-needle aspiration cytology (FNAC). The nodules were further classified usingthe TMS, which considers ultrasound features (number, echogenicity, structure, halo, margins,Doppler signal, calcifications, and growth), and the Bethesda System for Reporting ThyroidCytopathology (TBSRTC), which considers cytological features. Patients with non-negativenodules (TBSRTC categories III to VI) underwent histological analysis, repeated FNAC, or 2years of regular ultrasound follow-up. The associations between the final diagnosis, each of theultrasound features, and the TMS were estimated using the chi-square test, the Mann-WhitneyU test, and multivariate logistic regression. A receiver operating characteristic (ROC) curve wasused to evaluate the diagnostic accuracy of the TMS. Results: On ultrasound, 47% of the nodules (108 of 231) had a TMS <3, 18% (42 of 231) hada TMS of 3, and 35% (81 of 231) had a TMS >3. The FNAC results of 85% of the nodules (196of 231) were benign, while 15% (35 of 231) had non-negative results. Hypoechogenicity, solidstructure, the presence of microcalcifications, and the number of nodules were independentpredictors of the final diagnosis, and the diagnostic accuracy of the TMS was good (area underthe ROC curve, 0.82). Conclusion: The TMS system is simple to use, reliable, easily reproducible, and closely reflectsmalignancy risk. Based on our results, FNAC could be limited to nodules with a TMS ≥3 withoutmissing any cases of carcinoma.

      • KCI등재

        The Mixmaster Model as a Cosmological Framework and Aspects of its Quantum Dynamics

        Giovanni Imponente,Giovanni Montani 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.III

        This paper provides a review of some recent issues on the Mixmaster dynamics concerning the features of its stochasticity. After a description of the geometrical structure characterizing the homogeneous cosmological models in the Bianchi classification and the Belinsky-Khalatnikov-Lifshitz piecewise representation of the types VIII and IX oscillatory regime, we face the question regarding the time covariance of the resulting chaos as viewed in terms of continuous Misner-Chitr\'e like variables. Finally, we show how in the statistical mechanics framework the Mixmaster chaos raises as semiclassical limit of the quantum dynamics in the Planckian era.

      • KCI등재

        The Immune System in Irritable Bowel Syndrome

        ( Giovanni Barbara ),( Cesare Cremon ),( Giovanni Carini ),( Lara Bellacosa ),( Lisa Zecchi ),( Roberto De Giorgio ),( Roberto Corinaldesi ),( Vincenzo Stanghellini ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2011 Journal of Neurogastroenterology and Motility (JNM Vol.17 No.4

        The potential relevance of systemic and gastrointestinal immune activation in the pathophysiology and symptom generation in the irritable bowel syndrome (IBS) is supported by a number of observations. Infectious gastroenteritis is the strongest risk factor for the development of IBS and increased rates of IBS-like symptoms have been detected in patients with inflammatory bowel disease in remission or in celiac disease patients on a gluten free diet. The number of T cells and mast cells in the small and large intestine of patients with IBS is increased in a large proportion of patients with IBS over healthy controls. Mediators released by immune cells and likely from other non-immune competent cells impact on the function of enteric and sensory afferent nerves as well as on epithelial tight junctions controlling mucosal barrier of recipient animals, isolated human gut tissues or cell culture systems. Antibodies against microbiota antigens (bacterial flagellin), and increased levels of cytokines have been detected systemically in the peripheral blood advocating the existence of abnormal host-microbial interactions and systemic immune responses. Nonetheless, there is wide overlap of data obtained in healthy controls; in addition, the subsets of patients showing immune activation have yet to be clearly identified. Gender, age, geographic differences, genetic predisposition, diet and differences in the intestinal microbiota likely play a role and further research has to be done to clarify their relevance as potential mechanisms in the described immune system dysregulation. Immune activation has stimulated interest for the potential identification of biomarkers useful for clinical and research purposes and the development of novel therapeutic approaches. (J Neurogastroenterol Motil 2011;17:349-359)

      • KCI등재

        An interface model for the analysis of the compressive behaviour of RC columns strengthened by steel jackets

        Giovanni Minafò 국제구조공학회 2019 Structural Engineering and Mechanics, An Int'l Jou Vol.71 No.3

        Steel jacketing technique is a retrofitting method often employed for static and seismic strengthening of existing reinforced concrete columns. When no continuity is given to angle chords as they cross the floor, the jacket is considered “indirectly loaded”, which means that the load acting on the column is transferred partially to the external jacket through interface shear stresses. The evaluation of load transfer mechanism between core and jacket is not straightforward to be modeled, due to the absence of knowledge of a proper constitutive law of the concrete-to-steel interface and to the difficulties in taking into account the mechanical nonlinearities of materials. This paper presents an incremental analytical/numerical approach for evaluating the compressive response of RC columns strengthened with indirectly loaded jackets. The approach allows calculating shear stresses at the interface between core and jacket and predicting the axial capacity of retrofitted columns. A proper constitutive law is proposed for modelling the interaction between the steel and the concrete. Based on plasticity rules and the non-linear behaviour of materials, the column is divided into portions. After a detailed parametric analysis, comparisons are finally made by theoretical predictions and experimental results available in the literature, showing a good agreement.

      • KCI등재

        Analysis of LTE-A Heterogeneous Networks with SIR-based Cell Association and Stochastic Geometry

        Giovanni Giambene,Van Anh Le 한국통신학회 2018 Journal of communications and networks Vol.20 No.2

        This paper provides an analytical framework to characterizethe performance of heterogeneous networks (HetNets),where the positions of base stations and users are modeled by spatialPoisson point processes (stochastic geometry). We have beenable to formally derive outage probability, rate coverage probability,and mean user bit-rate when a frequency reuse of K anda novel prioritized SIR-based cell association scheme are applied. A simulation approach has been adopted in order to validate ouranalytical model; theoretical results are in good agreement withsimulation ones. The results obtained highlight that the adoptedcell association technique allows very low outage probability andthe fulfillment of certain bit-rate requirements by means of adequateselection of reuse factor and micro cell density. This analyticalmodel can be adopted by network operators to gain insights oncell planning. Finally, the performance of our SIR-based cell associationscheme has been validated through comparisons with otherschemes in literature.

      • KCI등재

        Platelet-Rich Plasma, Mesenchymal Stem Cell, and Non-metallic Suture-Based Fixation Technique in a Patellar Fracture Nonunion: A Technical Note and Systematic Review

        Giovanni Felice Trinchese,Lucio Cipollaro,Emanuele Calabrese,Nicola Maffulli 대한정형외과학회 2021 Clinics in Orthopedic Surgery Vol.13 No.3

        Background: We performed a systematic review on the management of patellar fracture nonunion and report a novel suturebased non-metallic fixation technique associated with platelet-rich plasma and mesenchymal stem cell injections in the management of this injury. Methods: A systematic search was performed up to August 2020 in PubMed and Scopus electronic databases of scholarly articles evaluating different surgical techniques used for nonunion of patellar fractures, with no restrictions on language or year of publication. Furthermore, we describe our novel non-metallic suture fixation technique and a patient in whom this technique was applied. Results: A total of 9 articles were included in the systematic review. Tension band wiring was the most commonly used procedure (62.7%). Nonoperative procedures (8.1%) resulted in nonunion in all patients. The most common complication after open reduction and internal fixation was infection (7.8%). Our patient at the latest follow-up reported full functional recovery and full extension and flexion of the affected knee with no pain and subjectively normal strength. Conclusions: The management of patella nonunions is still a challenge. The technique reported here can be used in patellar fracture nonunion, as well as in primary patellar fractures.

      • KCI등재

        Percutaneous laser ablation for benign and malignant thyroid diseases

        Giovanni Mauri,Luca Nicosia,Paolo Della Vigna,Gianluca Maria Varano,Daniele Maiettini,Guido Bonomo,Gioacchino Giuliano,Franco Orsi,Luigi Solbiati,Elvio De Fiori,Enrico Papini,Claudio Maurizio Pacella 대한초음파의학회 2019 ULTRASONOGRAPHY Vol.38 No.1

        Minimally invasive image-guided thermal ablation is becoming increasingly common as an alternative to surgery for the treatment of benign thyroid nodules. Among the various techniques for thermal ablation, laser ablation (LA) is the least invasive, using the smallest applicators available on the market and enabling extremely precise energy deposition. However, in some cases, multiple laser fibers must be used simultaneously for the treatment of large nodules. In this review, the LA technique is described, and its main clinical applications and results are discussed and illustrated.

      • A Study on Improving the Security Vulnerabilities of Modbus-Based SCADA Control Systems

        Giovanni A. Cagalaban,Seoksoo Kim,Kyung-jae Ha 한국산학기술학회 2009 한국산학기술학회 학술대회 Vol.- No.-

        SCADA control systems and protocols are developed based on reliability, availability, and speed but with no or little attention paid to security. Specifically in Modbus protocol, there are inherent security vulnerabilities in their design. The lack of common security mechanisms in the protocol such as authentication, confidentiality and integrity must be addressed. In this paper, security vulnerabilities of Modbus-based SCADA controls systems will be studied. An in-depth analysis of the message frame formats being sent between master and slave will be discussed to expose the security vulnerabilities. This will enable SCADA users to find ways to fix the security flaws of the protocol and design mitigation strategies to reduce the impact of the possible attacks. Security mechanisms are recommended to further enhance the security of SCADA control systems.

      • KCI등재

        Major Pelvic Bleeding Following a Stapled Transanal Rectal Resection: Use of Laparoscopy as a Diagnostic Tool

        Giovanni Domenico Tebala,Abdul Qayyum Khan,Sean Keane 대한대장항문학회 2016 Annals of Coloproctolgy Vol.32 No.5

        Stapled transanal rectal resection (STARR) and stapled hemorrhoidopexy (SH) are well-established techniques for treating rectal prolapse and obstructed defecation syndrome (ODS). Occasionally, they can be associated with severe complications. We describe the case of a 59-year-old woman who underwent STARR for ODS and developed a postoperative pelvic hemorrhage. A computed tomography (CT) scan revealed a vast pelvic, retroperitoneal hematoma and free gas in the abdomen. Laparoscopy ruled out any bowel lesions, but identified a hematoma of the pelvis. Flexible sigmoidoscopy showed a small leakage of the rectal suture. The patient was treated conservatively and recovered completely. Surgeons performing STARR and SH must be aware of the risk of this rare, but severe, complication. If the patient is not progressing after a STARR or SH, a CT scan can be indicated to rule out intra-abdominal and pelvic hemorrhage. Laparoscopy is a diagnostic tool and should be associated with intraluminal exploration with flexible sigmoidoscopy.

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