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Male gender and increased body mass index independently predicts clinically relevant morbidity after spleen-preserving distal pancreatectomy

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World Journal of Gastrointestinal Surgery 2018年第8期10卷 84-89页

作者： Traian Dumitrascu Mihai Eftimie ANDra Aiordachioae Cezar Stroescu Simona Dima Mihnea Ionescu Irinel popescu Department of General Surgery and Liver Transplant Fundeni Clinical Institute

AIM To identify risk factors for clinically relevant complications after spleen-preserving distal pancreatectomy(SPDP). No previous studies explored potential predictors of morbidity after *** The data of 41 patients who underwent a SPDP in a single surgical center between 2000 and 2015 were retrospectively reviewed from a prospectively maintained electronic database established in our Department of Surgery. The database included demographic, clinical, bioumoral, pathological, intraoperative and postoperative parameters. Uni-and multivariate ana-lyses were performed to assess potential predictors of clinically relevant morbidity. Postoperative morbidity was defined as in-hospital complications and mortality was assessed at 90 d. Clinically relevant morbidity was defined as complication ≥ grade 2 *** Overall morbidity rate was 34.1%(14 patients): grade Ⅰ(6 patients, 14.6%), grade Ⅱ(2 patients, 4.8%), grade Ⅲa(1 patient, 2.4%), and grade Ⅲb(5 patients, 12.2%). A number of 5 patients(12.2%) required re-laparotomy for postoperative complications. There was no postoperative mortality. Thus, at least one clinically relevant complication occurred in 8 patients(19.5%). Univariate analysis identified male gender(P = 0.034), increased body mass index(P = 0.002) and neuroendocrine pathology(P = 0.013) as statistically significant risk factors. Multivariate analysis identified male gender [odds ratio(OR): 1.29, 95%CI: 1.07-1.55, P = 0.005] and increased body mass index(OR: 23.18, 95%CI: 1.72-310.96, P = 0.018) as the only independent risk factors of clinically relevant morbidity after *** Male gender and increased body mass index are independently associated with increased risk of clinically relevant morbidity after SPDP. These findings may assist a surgeon in clinical decision-making to better select patients suitable for SPDP.

关键词： Spleen-preserving distal pancreatectomy Morbidity Male gender Body mass index

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Reversible Data Hiding Based on Varying Radix Numeral System

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Computers, Materials & Continua 2021年第10期69卷 283-300页

作者： J.Hemalatha S.Geetha R.Geetha C.Balasubramanian Daniela Elena popescu D.Jude Hemanth AAA College of Engineering and Technology SivakasiIndia SCOPE VIT UniversityChennaiIndia SENSE VIT UniversityChennaiIndia Department of CSE Kalasalingam Academy of Research and EducationIndia Faculty of Electrical Engineering and Information Technology University of OradeaOradeaRomania Department of ECE Karunya Institute of Technology and SciencesCoimbatoreIndia

A novel image reversible data-hiding scheme based on primitive and varying radix numerical model is presented in this *** varying radix,variable sum of data may be embedded in various pixels of *** scheme is made adaptive using the correlation of the neighboring *** are embedded as blocks of non-uniform length in the high-frequency regions of the rhombus mean interpolated image.A higher amount of data is embedded in the high-frequency regions and lesser data in the low-frequency regions of the *** size of the embedded data depends on the statistics of the pixel distribution in the cover *** of the major issues in reversible data embedding,the location map,is minimized because of the interpolation *** technique,which is actually LSB matching,embeds only the residuals of modulo radix into the LSBs of each *** attacks on this RDH technique will be able to decode the hidden content in the marked *** proposed scheme delivers a prominent visual quality despite high embedding *** tests carried out on over 100 natural image data sets and medical images show an improvement in results compared to the existing *** the algorithm is based on the variable radix number system,it is more resistant to most of the steganographic *** results were compared with a higher embedding capacity of up to 1.5 bpp reversible schemes for parameters like Peak Signal-to-Noise Ratio(PSNR),Embedding Capacity(EC)and Structural Similarity Index Metric(SSIM).

关键词： Data hiding spatial correlation radix system prediction error embedding capacity

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Hyper-real Narratives： The Emergence of Contemporary Film Subgenres

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Journal of Literature and Art Studies 2013年第9期3卷 568-575页

作者： Stefan Octavian popescu Sydney College of the Arts Sydney University

The scope of this paper is to investigate a number of emerging contemporary popular subgenres, namely that of ＂mumblecore film＂, the ＂best-worst film＂ and ＂the gonzo documentary＂. Unlike historical cinematic movements, these subgenres are the result of our techocentric culture and commercialism. In this respect these subgenres are less motivated by a collective ideology, but rather a cultural phenomenon resulting from increased access to popular culture, hypermedia devices, social media, and new marketing techniques. This paper investigates the displacement of traditional models of temporality through the metamorphosis of today＇s audiovisual culture, outlining the subject＇s embodiment of voyeurism and exhibitionism, ushering in a hyper-real era of self-myth making and consumption.

关键词： hyper-real mumblecore best-worst film gonzo documentary transmedia storytelling voyeurism exhibitionism popular culture

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Existence and Uniqueness of the Optimal Control in Hilbert Spaces for a Class of Linear Systems

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Intelligent Information Management 2010年第2期2卷 134-142页

作者： M. popescu 不详

We analyze the existence and uniqueness of the optimal control for a class of exactly controllable linear systems. We are interested in the minimization of time, energy and final manifold in transfer problems. The state variables space X and, respectively, the control variables space U, are considered to be Hilbert spaces. The linear operator T(t) which defines the solution of the linear control system is a strong semigroup. Our analysis is based on some results from the theory of linear operators and functional analysis. The results obtained in this paper are based on the properties of linear operators and on some theorems from functional analysis.

关键词： Existence and Uniqueness Optimal Control Controllable Linear Systems Linear Operator

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Confocal laser endomicroscopy and immunoendoscopy for real-time assessment of vascularization in gastrointestinal malignancies

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World Journal of Gastroenterology 2011年第1期17卷 21-27页

作者： Dan Ionut Gheonea Tatiana Crtnǎ Tudorel Ciurea Carmen popescu Anca Bǎdǎrǎu Adrian Sǎftoiu Research Center of Gastroenterology and Hepatology University of Medicine and Pharmacy CraiovaCraiova 200349Romania Physiology Department University of Medicine and Pharmacy Carol Davila BucharestBucharest 050474Romania Cytology Laboratory Emergency Hospital CraiovaCraiova 200642Romania

Gastrointestinal cancers represent a major cause of morbidity and mortality,with incomplete response to chemotherapy in the advanced stages and poor *** plays a crucial part in tumor growth and metastasis,with most gastrointestinal cancers depending strictly on the development of a new and devoted capillary *** laser endomicroscopy is a new technology which allows in vivo microscopic analysis of the gastrointestinal mucosa and its microvascularization during ongoing endoscopy by using topically or systemically administered contrast *** markers of angiogenesis in association with confocal laser endomicroscopic examination(immunoendoscopy),as a future challenge,will add functional analysis to the morphological aspect of the neoplastic *** review describes previous experience in endomicroscopic examination of the upper and lower digestive tract with emphasis on vascularization,resulting in a broad spectrum of potential clinical applications,and also preclinical research that could be translated to human studies.

关键词： Confocal laser endomicroscopy Immunoendoscopy Fluoresceine Acriflavine Cancer

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Detection and Grading of Diabetic Retinopathy in Retinal Images Using Deep Intelligent Systems: A Comprehensive Review

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Computers, Materials & Continua 2021年第3期66卷 2771-2786页

作者： H.Asha Gnana Priya J.Anitha Daniela Elena popescu Anju Asokan D.Jude Hemanth Le Hoang Son Department of ECE Karunya Institute of Technology and SciencesCoimbatore641114India Faculty of Electrical Engineering and Information Technology University of OradeaOradeaRomania Institute of Research and Development Duy Tan UniversityDa NangVietnam VNU Information Technology Institute Vietnam National UniversityHanoiVietnam

Diabetic Retinopathy(DR)is an eye disease that mainly affects people with *** affected by DR start losing their vision from an early stage even though the symptoms are identified only at the later *** the vision is lost,it cannot be regained but can be prevented from causing any further *** diagnosis of DR is required for preventing vision loss,for which a trained ophthalmologist is *** clinical practice is time-consuming and is not much successful in identifying DR at early ***,Computer-Aided Diagnosis(CAD)system is a suitable alternative for screening and grading of DR for a larger *** paper addresses the different stages in CAD system and the challenges in identifying and grading of DR by analyzing various recently evolved *** performance metrics used to evaluate the Computer-Aided Diagnosis system for clinical practice is also discussed.

关键词： Diabetic retinopathy computer-aided diagnosis system vessel extraction optic disc segmentation retinal features grading of DR

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Hybridity of the Self Between Desh (Home) and Pardesh (Abroad)

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Sociology Study 2019年第2期9卷 66-74页

作者： Ileana-Mihaela Motroc (popescu) Ovidius University ConstantaRomania

This paper examines the formation of the self in the context of emigration and the Indian individual in the Anglo-American space, in the novels: Fasting, Feasting by Anita Desai, The Inheritance of Loss by Kiran Desai, and The Namesake by Jhumpa Lahiri. The analysis focuses on exploring the way in which the hyphenated self is constructed under the influences of dialogical negotiation of desh and pardesh in the context of racism, global-local (glocal) specificity, becoming authenic under the presure of home memory, diaspora ethnicity and mimicry. Is reterritorialization and acculturation successful for the hybrid self? The answers is to be found by the characters of the novels and shown in instances of self expression and integration. Arun, the Indian guy, from Anita Desai’s novel left India for studying in America. During the summer, he is accommodated to an American family. The clash between the two cultures, traditions, and customs is felt as a huge breakage, which leads to desintegration and alienation. Biju and Harish-Harry from Kiran Desai’s novel go to America for a better living, and they succeeed in finding a job at a bakery. The impact of racism is higher in the lower strata of the society, thus their chances to integration are lost;Biju decides to return home, while Harish-Harry ends in a hyphenated self and a dissatisfied living. In The Namesake, Ashoke and Ashima, the Indian emigrants husband and wife, experience a different reshaping of identity. Ashoke works as a university assistant, while Ashima is a housewife. For him, America is a space for affirmation and self-verification, while for his wife, the space becomes a ghetto where she feels lonely and marginalised. Therefore, in the formation of the self there are many coordinates which should be taken into consideration and above this, their impact over the immigrant is different from case to case depending on many factors.

关键词： hyphenated/hybrid self desh and pardesh reterritorialization and acculturation

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The Risk Management of Companies From Timis County Involved in International Business

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Chinese Business Review 2011年第6期10卷 445-453页

作者： Gabriel Bizoi Alexandra popescu West University of Timisoara Timisoara Romania

Rapid internationalization of economic activities following the Second World War has generated an unprecedented increase in international trade and capital flows. For example, only during 1963-1993, exports rose from 157 billion to 3.774 billion dollars. Also the flows of foreign direct investment （FDI） have grown exponentially. Although FDI flows are concentrated on developing countries, 80% being targeted towards 10 countries, capital flows towards the Third World have quadrupled only between 1990 and 1993. This trend towards a truly international economy influences also on how companies do business. International business environment provides many opportunities, as well as threats. Romanian companies need to align to this trend. In addition to identifying new opportunities to do business in foreign markets, they have to deal with specific risks, which they did not have to face when working internally. In this context, we consider necessary to launch an investigation, whose main objective would be analyzing the manner in which Romanian companies manage risks specific to international economic affairs. As the complexity of these businesses is great, and the majority of Romanian companies, in their attempt to internationalize, use classical forms of export-import, the analysis took into account only the export activity undertaken by Romanian companies. We mention that we did not take into account the determination of the exposure to these risks of the companies concerned, but an analysis of the management of those risks. For this analysis, data were collected based on the administration of a questionnaire, and these data were used to develop an econometric model analysis. The specific methods of risk analysis of specific export transactions are then interpreted using the GLOBE model.

关键词： risk management risk exposure probability commercial risks currency risk GLOBE model

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The Romanian researchers＇ profile and career in the knowledge based economy

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Chinese Business Review 2010年第9期9卷 46-53页

作者： Iulia Chivu Dan popescu Alina Ciocarlan-Chitucea Daniela-Oana popescu Faculty of Management Academy of Economic Studies from Bucharest Bucharest 010374 Romania

This study examines the international profile and career of 157 Romanian researchers. The majority considers the insufficient funding of research in Romania as playing a major role in their decision to work in the knowledge based economy. In addition, the survey reveals several other factors which motivate the emigration of Romanian scientists. While abroad, the majority kept in touch with their former university/research institute, colleagues and/or the Romanian scientific community, in general. More than half of the respondents prefer to work outside Romania, after completing their current professional projects.

关键词： Romanian researchers professional career brain drain

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Real-time sono-elastography in the diagnosis of diffuse liver diseases

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World Journal of Gastroenterology 2010年第14期16卷 1720-1726页

作者： Dan Ionut Gheonea Adrian S ǎftoiu Tudorel Ciurea Florin Gorunescu Sevastita Iordache Gabriel Lucian popescu Smaranda Belciug Marina Gorunescu Larisa Sǎndulescu Research Center of Gastroenterology and Hepatology University of Medicine and Pharmacy Craiova 200349 Romania Department of Biostatistics and Informatics University of Medicine and Pharmacy Craiova 200349 Romania IT Department University of Medicine and Pharmacy Craiova 200349 Romania Faculty of Mathematics of Computer Science University of Craiova Craiova 200585 Romania

AIM: To analyze whether computer-enhanced dynamic analysis of elastography movies is able to better characterize and differentiate between different degrees of liver fibrosis. METHODS: The study design was prospective. A total of 132 consecutive patients with chronic liver diseases and healthy volunteers were examined by transabdominal ultrasound elastography. All examinations were done by two ***: Due to the limitations of the method, we obtained high-quality elastography information in only 73.48% of the patients. The κ-means clustering method was applied to assess the inter-observer diagnosis varia- bility, which showed good variability values in accordance with the experience of ultrasound examination of every observer. Cohen’sκ test indicated a moderate agreement between the study observers (κ = 0.4728). Furthermore, we compared the way the two observers clustered the patients, using the test for comparing two proportions (t value, two-sided test). There was no statistically significant difference between the two physicians, regardless of the patients’ real status. CONCLUSION: Transabdominal real-time elastography is certainly a very useful method in depicting liver hard- ness, although it is incompletely tested in large multicenter studies.

关键词： Elastography Ultrasonography Liver steato- sis Viral hepatitis Liver cirrhosis

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