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Non-Semisimple Lie Algebras of Block Matrices and Applications to Bi-Integrable Couplings

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Advances in Applied Mathematics and Mechanics 2013年第5期5卷 652-670页

作者： Jinghan Meng Wen-Xiu Ma Department of Mathematics and Statistics University of South FloridaTampaFL 33620-5700USA

We propose a class of non-semisimple matrix loop algebras consisting of 3×3 block matrices,and form zero curvature equations from the presented loop algebras to generate bi-integrable *** are made for the AKNS soliton hierarchy and Hamiltonian structures of the resulting integrable couplings are constructed by using the associated variational identities.

关键词： Bi-integrable couplings non-semisimple matrix loop algebras AKNS hierarchy Hamiltonian structure symmetry

Physical activity during pregnancy and the role of theory in promoting positive behavior change:A systematic review

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Journal of Sport and Health Science 2017年第2期6卷 198-206页

作者： Erika L.Thompson Cheryl A.Vamos Ellen M.Daley Department of Community and Family Health University of South Florida Tampa FL 33612 USA

Background: Physical activity(PA) during pregnancy provides physical and psychological benefits for mother and child. U.S. guidelines recommend ≥30 min of moderate exercise for healthy pregnant women most days of the week; however, most women do not meet these recommendations. Theory assists in identifying salient determinants of health behavior to guide health promotion interventions; however, the application of theory to examine PA among pregnant women has not been examined cohesively among multiple levels of influence(e.g.,intrapersonal, interpersonal, neighborhood/environmental, and organizational/political). Subsequently, this systematic review aims to identify and evaluate the use of health behavior theory in studies that examine PA during ***: Articles published before July 2014 were obtained from Pub Med and Web of Science. Inclusion criteria applied were:(1) empiricallybased;(2) peer-reviewed;(3) measured factors related to PA;(4) comprised a pregnant sample; and(5) applied theory. Fourteen studies were included. Each study's application of theory and theoretical constructs were ***: Various theories were utilized to explain and predict PA during pregnancy; yet, the majority of these studies only focused on intrapersonal level determinants. Five theoretical frameworks were applied across the studies—all but one at the intrapersonal level. Few determinants identified were from the interpersonal, neighborhood/environmental, or organizational/political ***: This systematic review synthesized the literature on theoretical constructs related to PA during pregnancy. Interpersonal, community,and societal levels remain understudied. Future research should employ theory-driven multi-level determinants of PA to reflect the interacting factors influencing PA during this critical period in the life course.

关键词： Physical activity Pregnancy Theory

High-level intrinsic disorder explains the universality of CLIP binding to diverse MHC class II variants

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Cellular & Molecular Immunology 2018年第1期15卷 76-78页

作者： Vladimir N Uversky Yaping N Tu Onyekachi Nwogu Shanitra N Butler Michael Ramsamooj George Blanck Department of Molecular Medicine Morsani College of MedicineUniversity of South Floridaand Immunology ProgramTampaFLUSA H.Lee Moffitt Cancer Center and Research Institute TampaFLUSA

MHC class I and II molecules bind peptides that are either recognized as self or as foreign to the immune system via interaction with T-cell *** T-cell receptor makes molecular contacts with the peptide and the MHC molecule in the region of the MHC peptide binding *** MHC class I and II molecules are highly polymorphic,which presumably allows for great diversity of antigen-binding sites over the population,leading to a species that is relatively fit to withstand foreign *** MHC class I molecules,this allelic variation predicts extensive variation in the sequence of peptides able to bind MHC class I molecules,and this is indeed the case.

关键词： explain class intrinsic

A review of self-assembled monolayers as potential terahertz frequency tunnel diodes

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Nano Research 2014年第5期7卷 589-625页

作者： Michael Celestin Subramanian Krishnan Shekhar Bhansali Elias Stefanakos D. Yogi Goswami Department of Chemical & Biomedical Engineering University of South Florida Tampa FL 33520 USA Department of Electrical Engineering University of South Florida Tampa FL 33620 USA Department of Electrical & Computer Engineering Florida International University Miami FL 33174 USA

In this review, we describe the principles of the tunnel junction, self-assembled monolayer （SAM） application techniques, experimental testbed fabrication, and characterization of the films and devices. In addition, techniques for directed application, removal, and functionalization of the monolayers are discussed. Bottom-up fabrication techniques have seen increased attention because of their versatility and ease of use. These films see mechanical uses as surface modifiers and micro-scale lubricants. Advances in nanowatt electronics and ultra-low power sensors have opened up an energy harvesting niche for solutions which would have proven ineffective just some years ago. The focus of this study is the two- terminal junction which has potential applications in THz rectification for energy harvesting, medical imaging, and defense sensing. The quantum theory of operation behind these devices is touched on briefly---describing tunneling through the organic monolayers. Commentary on trends in research and potential future work are presented as well.

关键词： SAM/self-assembly quantum tunneling molecular rectification IR detection rectenna

Updates in the use of radiotherapy in the management of primary and locally-advanced penile cancer

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Asian Journal of Urology 2022年第4期9卷 389-406页

作者： Akshar Patel Arash O.Naghavi Peter A.Johnstone Philippe E.Spiess G.Daniel Grass University of South Florida Morsani College of Medicine TampaFLUSA Department of Radiation Oncology H.Lee Moffitt Cancer Center and Research InstituteTampaFLUSA Department of Genitourinary Oncology H.Lee Moffitt Cancer Center and Research InstituteTampaFLUSA

Objective:Penile cancer is a rare malignancy in most developed countries,but may represent a significant oncologic challenge in certain African,Asian,and South American *** treatment approaches have been described in penile cancer,including *** review aimed to provide a synopsis of radiotherapy use in penile cancer management and the associated *** addition,we aimed to discuss palliative radiation for metastases to the penis and provide a brief overview of how tumor biology may assist with treatment ***:Peer-reviewed manuscripts related to the treatment of penile cancer with radio-therapy were evaluated by a PubMed search(1960-2021)in order to assess its role in the definitive and adjuvant *** manuscripts were also evaluated for descriptions of radiation-related ***:Though surgical resection of the primary is an excellent option for tumor control,select patients may be treated with organ-sparing radiotherapy by either external beam radiation or *** from randomized controlled trials comparing radiotherapy and surgery are lacking,and thus management is frequently determined by institutional practice patterns and available ***,this lack of clinical trial data leads to divergence in opinion regarding lymph node *** is further complicated in that many cited studies evaluating lymph node radiotherapy used non-modern radiotherapy delivery *** toxicity from either surgery or radiotherapy remains a challenging problem and further risk assessment is needed to guide intensification with multi-modal *** differences in tumor biology,based on human papillomavirus infection,may help aid future prognostic and predictive models in patient risk stratification or treatment ***:Penile cancer is a rare disease with limited clinical trial data driving the majority of treatment *** a result,the goal of management

关键词： Brachytherapy Chemoradiation Radiation Radiotherapy Penile cancer Squamous cell carcinoma of the penis Penile-sparing Penile metastase Human papillomavirus

CDX2 protein expression compared to alcian blue staining in the evaluation of esophageal intestinal metaplasia

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World Journal of Gastroenterology 2015年第9期21卷 2770-2776页

作者： Dennis R Johnson Maisoun Abdelbaqui Maryam Tahmasbi Zoltan Mayer Hung-Wei Lee Mokenge P Malafa Domenico Coppola Department of Anatomic Pathology Moffitt Cancer Center and Research InstituteTampaFL 33612United States Florida Digestive Health Specialists Lakewood RanchFL 34202United States Department of Oncological Sciences University of South FloridaTampaFL 33612United States GI Tumor Program Moffitt Cancer Center and Research InstituteTampaFL 33612United States Tumor Biology Program Moffitt Cancer Center and Research InstituteTampaFL 33612United States

AIM:To compare the sensitivity and specificity of CDX2 and alcian blue(AB) p H 2.5 staining in identifying esophageal intestinal ***:One hundred and ninty-nine biopsies from 186 patients were retrospectively reviewed and categorized as Barrett's esophagus(BE)(n =108); non-Barrett's esophagus(NBE)(n =48); columnar blue cells(CB) and esophageal glands(EG)(n =43).The biopsies were stained with AB and immunostained for CDX2 using a mouse monoclonal antibody from Biogenex(clone CDX2-88) and the Ventana Discovery X automated *** positive and negative predictive value of each group was used to determine the predictive power of CDX2 and AB in diagnosing intestinal ***:All of the 108 BE biopsies(100%) were positive for AB and 102 of them(94.4%) were positive for *** six BE patients(5.6%) who failed to stain with CDX2 were found to have lost the focus of intestinal metaplasia upon deeper sectioning for *** AB and CDX2 were negative in 43 out of 48(89.6%) NBE *** NBE patients(10.4%) were falsely positive for AB due to the presence of EG and CB in these *** cases were all CDX2 *** addition,5 AB negative NBE were found to be CDX2 *** on these results the CDX2 immunostain had similar sensitivity but higher specificity(100% vs about 91%) than AB in detecting intestinal type metaplasia in these *** data shows that CDX2 has a better PPV in detecting intestinal metaplasia as compared to AB(95.6% vs 71.5%,respectively).CONCLUSION:CDX2 has a better positive predictive value than AB in detecting intestinal ***2may be useful when challenged by gastro-esophageal biopsies containing mimikers of BE.

关键词： Barrett’s esophagus Alcian blue pH 2.5 CDX2 Intest

Waveguides Written and Stored by Photovoltaic Dark Spatial Solitons in LiNbO_(3):Fe Crystals

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Chinese Physics Letters 1996年第10期13卷 737-740页

作者： LIU Si-min ZHANG Guequan SUN Qian XU Jing-jun ZHANG Guang-ying TONG Yi-cheng Department of Physics Nankai UniversityTianjin 300071 Department of Physics University of South FloridaTampaFlorida 33620USA

To our knowledge, we have demonstrated for the first time that (2+1)-dimension photorefractive waveguides can be written and stored by light using the (2+1)-dimension photovoltaic dark spatial solitons in LiNbO3:Fe cr... 详细信息

关键词： Crystal dimension Spatial

Multiphase computed tomography radiomics of pancreatic intraductal papillary mucinous neoplasms to predict malignancy

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World Journal of Gastroenterology 2020年第24期26卷 3458-3471页

作者： Stuart L Polk Jung W Choi Melissa J McGettigan Trevor Rose Abraham Ahmed Jongphil Kim Kun Jiang Yoganand Balagurunathan Jin Qi Paola T Farah Alisha Rathi Jennifer B Permuth Daniel Jeong University of South Florida College of Medicine TampaFL 33612United States Department of Diagnostic and Interventional Radiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Biostatistics and Bioinformatics H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Anatomic Pathology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Cancer Physiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Clinical Science H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Radiology University of FloridaGainesvilleFL 32610United States Department of Cancer Epidemiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States

BACKGROUND Intraductal papillary mucinous neoplasms(IPMNs)are non-invasive pancreatic precursor lesions that can potentially develop into invasive pancreatic ductal ***,the International Consensus Guidelines(ICG)for IPMNs provides the basis for evaluating suspected IPMNs on computed tomography(CT)*** using the ICG,it remains challenging to accurately predict whether IPMNs harbor high grade or invasive disease which would warrant surgical resection.A supplementary quantitative radiological tool,radiomics,may improve diagnostic accuracy of radiological evaluation of *** hypothesized that using CT whole lesion radiomics features in conjunction with the ICG could improve the diagnostic accuracy of predicting IPMN *** To evaluate whole lesion CT radiomic analysis of IPMNs for predicting malignant histology compared to International Consensus *** Fifty-one subjects who had pancreatic surgical resection at our institution with histology demonstrating IPMN and available preoperative CT imaging were included in this retrospective *** lesion semi-automated segmentation was performed on each preoperative CT using Healthmyne software(Healthmyne,Madison,WI).Thirty-nine relevant radiomic features were extracted from each lesion on each available contrast *** analysis of the 39 radiomics features was performed for each contrast phase and values were compared between malignant and benign IPMN groups using logistic *** quantitative and qualitative CT measurements were also compared between groups,viaχ2(categorical)and Mann Whitney U(continuous)*** Twenty-nine subjects(15 males,age 71±9 years)with high grade or invasive tumor histology comprised the"malignant"cohort,while 22 subjects(11 males,age 70±7 years)with low grade tumor histology were included in the"benign"*** analysis showed 18/39 precontrast,19/39 arterial phase,and 21/39 venous phase features

关键词： Radiomics Intraductal papillary mucinous neoplasm Multiphase computed tomography Pancreas Oncology Pancreatic cancer

Hamiltonian Tri-Integrable Couplings of the AKNS Hierarchy

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Communications in Theoretical Physics 2013年第4期59卷 385-392页

作者： MENG Jing-Han MA Wen-Xiu Department of Mathematics and Statistics University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA

We propose a systematic approach for generating Hamiltonian tri-integrable couplings of soliton hierarchies. The resulting approach is based on semi-direct sums of matrix Lie algebras consisting of 4× 4 block matrix Lie algebras. We apply the approach to the AKNS soIRon hierarchy, and Hamiltonian structures of the obtained tri-integrable couplings are constructed by the variational identity.

关键词： tri-integrable coupling non-semisimple matrix loop algebra AKNS hierarchy bi-Hamiltonianstructure symmetry conservation law