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STUDIES OF THE ANTENNA EFFECT IN POLYMER MOLECULES ENERGY MIGRATION AND TRAPPING IN NAPHTHALENE-CONTAINING POLYELECTROLYTES

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Chinese Journal of Polymer Science 1998年第3期16卷 261-267页

作者： GUILLET james Department of Chemistry University of Toronto Toronto M5S 3H6 Canada

Polymers of 1- and 2-vinylnaphthalene containing more than about 50 mol% sulfonic acid groups dissolve in water to form 'hypercoiled' conformations which have many of the properties of micelles. Hydrophobic molecules such as anthracene and perylene are selectively absorbed in these pseudo micellar structures, and their fluorescence emission is sensitized by energy transfer from the surrounding naphthalene chromophores. When irradiated with UV light in the presence of oxygen, the emission of perylene rapidly decreases. It is proposed that this is due to reaction of singlet oxygen with the perylene trapped in the hypercoiled polymer. (Author abstract) 3 Refs.

关键词： Sulfonated vinyl naphthalene polymers Transport of excitation energy Anthracene Perylene Tripping

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Feasibility study of phase-sensitive imaging based on multiple reference optical coherence tomography

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Chinese Optics Letters 2017年第9期15卷 25-30页

作者： Roshan Dsouza Hrebesh Subhash Kai Neuhaus Paul M.McNamara Josh hogan Carol Wilson Martin J.Leahy Tissue Optics and Microcirculation Imaging Group School of PhysicsNational University of IrelandGalway H91 CF50Ireland Compact Imaging Ireland Ltd. Galway H91 CF50Ireland Colgate-Palmolive Global Technology Centre Piscataway NJ 08855USA Compact Imaging Inc.Mountain View 94043USA Royal College of Surgeons(RCSI) DublinIreland

Multiple reference optical coherence tomography（MR-OCT） is a recently developed, low-cost and compact time-domain OCT solution for primary care and consumer level applications. A combination of a voice coil actuator and a partial mirror（PM） extends the scan range for imaging depths of approximately 1 mm in biological samples. Our previous research on MR-OCT is based only on intensity information obtained from the depth-resolved interference signal. In this Letter, we extract the phase information from the MR-OCT signal and, hence, provide an additional contrast modality. The phase sensitivity of the system is measured to be approximately 0.2 and 1.5 rad for the first and twelfth orders of reflection when using a mirror as the *** Letter describes first results of phase-sensitive data measured on a phantom obtained with MR-OCT. Data from a chick embryo chorioallantoic membrane（CAM） is used to demonstrate the feasibility of MR-OCT for in vivo phase-sensitive imaging.

关键词： Feasibility study of phase-sensitive imaging based on multiple reference optical coherence tomography VCM Figure CAM

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Neoadjuvant radiotherapy for rectal cancer management

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World Journal of Gastroenterology 2019年第33期25卷 4850-4869页

作者： Gerard Feeney Rishabh Sehgal Margaret Sheehan Aisling hogan Mark Regan Myles Joyce Michael Kerin Department of General/Colorectal Surgery Galway University HospitalGalway H91 YR71Ireland Department of Histopathology Galway University HospitalGalway H91 YR71Ireland

Thirty per cent of all colorectal tumours develop in the *** location of the rectum within the bony pelvis and its proximity to vital structures presents significant therapeutic challenges when considering neoadjuvant options and surgical *** patients with early rectal cancer can be adequately managed by surgery ***,a significant proportion of patients with rectal cancer present with locally advanced disease and will potentially benefit from down staging prior to *** therapy involves a variety of options including radiotherapy,chemotherapy used alone or in *** radiotherapy in rectal cancer has been shown to be effective in reducing tumour burden in advance of curative *** gold standard surgical rectal cancer management aims to achieve surgical removal of the tumour and all draining lymph nodes,within an intact mesorectal package,in order to minimise local *** is critically important that all rectal cancer cases are discussed at a multidisciplinary meeting represented by all relevant ***-operative staging including CT thorax,abdomen,pelvis to assess for distal disease and magnetic resonance imaging to assess local involvement is *** radiology and MDT discussion are integral in identifying patients who require neoadjuvant *** Neoadjuvant radiotherapy is potentially beneficial it may also result in morbidity and thus should be reserved for those patients who are at a high risk of local failure,which includes patients with nodal involvement,extramural venous invasion and threatened circumferential *** aim of this review is to discuss the role of neoadjuvant radiotherapy in the management of rectal cancer.

关键词： Rectal cancer Neoadjuvant therapy Low anterior resection syndrome Stoma Transanal endoscopic microsurgery Trans-anal total mesorectal excision Robotic surgery Watch and wait

Spontaneous pneumothorax in a single lung transplant recipient-a blessing in disguise: A case report

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World Journal of Clinical Cases 2020年第14期8卷 3031-3038页

作者： Himanshu Deshwal Subha Ghosh Kathleen hogan Olufemi Akindipe Charles Randall Lane Atul C Mehta Division of Pulmonary Critical Care and Sleep MedicineNew York University Grossman School of MedicineNew YorkNY 10016United States Imaging Institute Section of Thoracic ImagingCleveland ClinicClevelandOH 44195United States Respiratory Institute Cleveland ClinicClevelandOH 44195United States

BACKGROUND End-stage chronic obstructive pulmonary disease(COPD)is one of the common lung diseases referred for lung *** to the international society of heart and lung transplantation,30%of all lung transplantations are carried out for COPD *** compared to bilateral lung transplant,singlelung transplant(SLT)has similar short-term and medium-term results for *** patients with severe upper lobe predominant emphysema,lung volume reduction surgery is an excellent alternative which results in improvement in functional status and long-term *** 2018,endobronchial valves were approved by the Food and Drug Administration for severe upper lobe predominant emphysema as they demonstrated improvement in lung function,exercise capacity,and quality of ***,the role of endobronchial valves in native lung emphysema in SLT patients has not been *** SUMMARY We describe an unusual case of severe emphysema who underwent a successful SLT 15 years ago and had gradual worsening of lung function suggestive of chronic lung allograft ***,her lung function improved significantly after a spontaneous pneumothorax of the native lung resulting in auto-deflation of large *** This case highlights the clinical significance of native lung hyperinflation in single lung transplant recipient and how spontaneous decompression due to pneumothorax led to clinical improvement in our patient.

关键词： Native lung hyperinflation Single lung transplant Pneumothorax Bronchoscopic lung volume reduction Endobronchial valve Case report

Alternative views of biological species: reproductively isolated units or genotypic clusters?

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National Science Review 2020年第8期7卷 1401-1407页

作者： james Mallet Department of Organismic and Evolutionary Biology Harvard University

Wang et al. in this journal argue that it may be time to abandon a classic idea about species, the biological species concept(BSC), given recent findings with genomic data on closely related taxa [1]. Furthermore, they propose a set of tests on genetic or genomic data that might lead to acceptance or rejection of the biological species concept.

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Sugarcane press mud modification of expansive soil stabilized at optimum lime content:Strength,mineralogy and microstructural investigation

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Journal of Rock Mechanics and Geotechnical Engineering 2020年第2期12卷 395-402页

作者： Jijo james SSN College of Engineering Chennai603110India

This study attempted to investigate the potential of sugarcane press mud(PM) as a secondary additive in conjunction with lime for the stabilization of an expansive *** physico-mechanical properties of an expansive soil,such as plasticity,shrink-swell behavior,unconfined compressive strength(UCS),mineralogical and microstructural characteristics were *** expansive soil was stabilized at its optimum lime content(7%) for producing maximum strength,and was modified with four different quantities of PM in small dosages(0.25%-2%).Cylindrical soil samples,38 mm in diameter and 76 mm in height,were cast and cured for varying periods to evaluate the strength of the amended *** spent samples after strength tests were further used for determination of other *** test results revealed that PM modification led to a substantial improvement in 7-d strength and noticeable increase in 28-d strength of the lime-stabilized soil(LSS).The addition of PM does not cause any detrimental changes to the shrink-swell properties as well as plasticity nature of the stabilized soil,despite being a material of organic *** investigation revealed that the formation of calcium silicate hydrate(CSH) minerals,similar to that of pure lime stabilization with only the type of mineral varying due to the modification of PM addition,does not significantly alter the microstructure of the LSS except for superficial changes being noticed.

关键词： Expansive soil Lime stabilization Press mud(PM) Strength Shrink-swell Mineralogy Microstructure

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THE FOREPLAY

城市漫步（上海版、英文） 2014年第5期 56-67页

作者： LAUREN hogan 不详

Weve got some heavier stuff coming up in this story,but thought we'd get things going with the light titillation of strange sex stories from around the country... 详细信息

Weve got some heavier stuff coming up in this story,but thought we'd get things going with the light titillation of strange sex stories from around the country...

关键词： stuff get story

Arbovirus and seizures

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Acta Epileptologica 2020年第1期2卷 151-157页

作者： Mingrui Zheng Shichuo Li R.Edward hogan Meihua Yang West China School of Basic Medicine and Forensic Medicine Sichuan UniversityChengdu 610041China. China Association Against Epilepsy(CAAE) BeijingChina. Department of Neurology Washington UniversitySt.LouisMO 63110-1093USA. Epilepsy Centre Department of NeurosurgeryXinqiao HospitalArmy Military Medical UniversityChongqing 400037China.

The high prevalence and spread of arthropod-borne viruses(arboviruses)make them an important cause of viral encephalitis in *** epidemic viral encephalitides have an etiology associated with *** various arboviruses,the Japanese encephalitis virus,West Nile virus,Zika virus,Dengue virus and Chikungunya virus can induce *** of the genus Flavivirus are usually transmitted by mosquitoes and other host *** vector-borne pathogens can cause epidemic viral *** may not be the major manifestation in these viral encephalitides,but may predict a poor *** this article,we discuss the relationships between these viruses and seizures from perspectives of clinical characteristics,pathogenesis,prognosis and treatments of each.

关键词： Seizures Japanese encephalitis West Nile virus Zika virus Dengue virus Chikungunya virus