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Magneto-polaron induced intersubband optical transition in a wide band gap Ⅱ–Ⅵ semiconductor quantum dot

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Journal of Semiconductors 2015年第3期36卷 1-6页

作者： P.christina Lily Jasmine A.John Peter Department of Physics N.M.S.Sermathai Vasan College for Women Department of Physics Government Arts College

Effects of LO-phonon contribution on the electronic and the optical properties are investigated in a ***.2 Se/ZnSe quantum dot in the presence of magnetic field strength. The magneto-polaron induced hydro- genic binding energy as a function of dot radius in the wide band gap quantum dot is calculated. The oscilla- tor strength and the spontaneous lifetime are studied taking into account the spatial confinement, magnetic field strength and the phonon contribution. Numerical calculations are carried out using variational formulism within the single band effective mass approximation. The optical properties are computed with the compact density matrix method. The magneto-polaron induced optical gain as a function of photon energy is observed. The results show that the optical telecommunication wavelength in the fiber optic communications can be achieved using CdSe/ZnSe semiconductors and it can be tuned with the proper applications of external perturbations.

关键词： electronic states optical absorption intersubband transition quantum dot

Semaglutide for nonalcoholic steatohepatitis: closer to a solution?

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Hepatobiliary Surgery and Nutrition 2021年第4期10卷 541-544页

作者： christina Liava Emmanouil Sinakos Fourth Department of Internal Medicine Aristotle University of ThessalonikiHippokratio General Hospital of ThessalonikiThessalonikiGreece

In the issue of March 25,2021 of the New England Journal of Medicine,Newsome et *** the results of a phase II clinical trial of semaglutide,a glucagon-like peptide-1 receptor agonist(GLP-1RA),given once-daily,subcutaneously for 72 weeks for the treatment of non-alcoholic steatohepatitis(NASH)(1).The authors found that among 230 NASH patients with fibrosis stage of F2 or F3 the primary endpoint of the study(NASH resolution with no worsening of fibrosis)was achieved in 59%of patients with semaglutide at a dose of 0.4 mg compared to 17%in the placebo group(OR 6.87;95%CI:2.60-17.63;P<0.001).

关键词： hepatitis clinical

Impacts of COVID-19 pandemic on urban park visitation:a global analysis

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Journal of Forestry Research 2021年第2期32卷 553-567页

作者： Dehui(christina)Geng John Innes Wanli Wu Guangyu Wang Faculty of Forestry University of British Columbia2424 Main MallVancouverBC V6T 1Z4Canada

The COVID-19 pandemic has resulted in over 33 million confirmed cases and over 1 million deaths globally,as of 1 October *** the lockdown and restrictions placed on public activities and gatherings,green spaces have become one of the only sources of resilience amidst the coronavirus pandemic,in part because of their positive effects on psychological,physical and social cohesion and spiritual *** study analyzes the impacts of COVID-19 and government response policies to the pandemic on park visitation at global,regional and national levels and assesses the importance of parks during this global *** data we collected primarily from Google’s Community Mobility Reports and the Oxford Coronavirus Government Response *** results for most countries included in the analysis show that park visitation has increased since February 16th,2020 compared to visitor numbers prior to the COVID-19 *** on social gathering,movement,and the closure of workplace and indoor recreational places,are correlated with more visits to ***-at-home restrictions and government stringency index are negatively associated with park visits at a global *** from residents for parks and outdoor green spaces has increased since the outbreak began,and highlights the important role and benefits provided by parks,especially urban and community parks,under the COVID-19 *** provide recommendations for park managers and other decision-makers in terms of park management and planning during health crises,as well as for park design and *** particular,parks could be utilized during pandemics to increase the physical and mental health and social well-being of individuals.

关键词： COVID-19 COVID-19 response policies Parks visitation Stepwise regression analysis Urban parks

The distribution,characteristics and fluid sources of lode gold deposits:An overview

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Science China Earth Sciences 2021年第9期64卷 1463-1480页

作者： christina Yan WANG Bo WEI Wei TAN Zaicong WANG Qingdong ZENG CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou510640China CAS Center for Excellence in Deep Earth Science Chinese Academy of SciencesGuangzhou510640China State Key Laboratory of Geological Processes and Mineral Resources(GPMR) School of Earth SciencesChina University of GeosciencesWuhan430074China Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institutions of Earth Science Chinese Academy of SciencesBeijing100029China University of Chinese Academy of Sciences Beijing100029China

Lode gold deposits are among the most economically important types of gold deposits in the ***,they formed mainly in three time intervals,2.8 to 2.5 Ga,2.1 to 1.8 Ga,and 700 Ma to the *** of ore-forming fluids and other components are of critical importance in a better understanding of the genesis and the geodynamic controls of these *** ore-forming fluids were mostly derived from devolatization of sedimentary and/or volcanic sequences during greenschist to amphibolite facies metamorphism associated with orogenic deformation,magmatic hydrothermal fluids have been increasingly shown to be important in many gold deposits in various *** this review paper,we summarize the major features of lode gold deposits,possible sources of ore-forming fluids,and mechanisms of gold *** we acknowledge the critical role of metamorphically derived fluids in the genesis of such deposits worldwide,we emphasize that mantle-or basaltic magma-derived fluids may have been much more important than commonly *** use the Liaodong peninsula of the North China Craton as an example to demonstrate the significance of mantle-derived *** earlier studies and new data,we show that some of the late Mesozoic lode gold deposits in the North China Craton may have formed from magmatic hydrothermal fluids due to the extension and partial melting of the hydrated,metasomatized subcontinental lithosphere mantle,as best exemplified by the Wulong gold deposit.

关键词： Lode gold deposit Ore-forming fluid Metasomatized subcontinental lithosphere mantle Mantle-derived melt/fluid North China Craton

＂One sperm, one embryo, one baby＂？

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Asian Journal of Andrology 2010年第2期12卷 284-286页

作者： Chi christina Ding Kok Joo Thong IVF Unit Reproductive Medicine Unit Liverpool Women ＂s Hospital Liverpool L8 7SS UK Royal Infirmary of Edinburgh - Assisted Conception Unit Edinburgh EH16 4SA Scotland UK

Dear Editor, The introduction of intracytoplasmic sperm injection （ICSI） technology has revolutionised the treatment of patients with severe oligozoospermia and azoospermia. A patient is usually considered oligozoospermic if his sperm concentration is less than 20 million mL^-1. A patient is labelled azoospermic according to the World Health Organisation guideline , if, on two different occasions, no spermatozoa can be detected by high-power microscopy after the seminal fluid has been centrifuged for 15 min at a centrifugation force of 3 000 × g or greater.

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Colorectal cancer vaccines: Tumor-associated antigens vs neoantigens

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World Journal of Gastroenterology 2018年第48期24卷 5418-5432页

作者： Sandra Wagner christina S Mullins Michael Linnebacher Section of Molecular Oncology and Immunotherapy General SurgeryUniversity Medical Center

Therapeutic options for the treatment of colorectal cancer(CRC) are diverse but still not always satisfying. Recent success of immune checkpoint inhibition treatment for the subgroup of CRC patients suffering from hypermutated tumors suggests a permanent role of immune therapy in the clinical management of CRC. Substantial improvement in treatment outcome could be achieved by development of efficient patient-individual CRC vaccination strategies. This mini-review summarizes the current knowledge on the two general classes of targets: tumor-associated antigens(TAAs) and tumorspecific antigens. TAAs like carcinoembryonic antigen and melanoma associated antigen are present in and shared by a subgroup of patients and a variety of clinical studies examined the efficacy of different TAA-derived peptide vaccines. Combinations of several TAAs as the next step and the development of personalized TAA-based peptide vaccines are discussed. Improvements of peptidebased vaccines achievable by adjuvants and immunestimulatory chemotherapeutics are highlighted. Finally, we sum up clinical studies using tumor-specific antigens-in CRC almost exclusively neoantigens-which revealed promising results; particularly no severe adverse events were reported so far. Critical progress for clinical outcomes can be expected by individualizing neoantigen-based peptide vaccines and combining them with immunestimulatory chemotherapeutics and immune checkpoint inhibitors. In light of these data and latest developments, truly personalized neoantigen-based peptide vaccines can be expected to fulfill modern precision medicine's requirements and will manifest as treatment pillar for routine clinical management of CRC.

关键词： Cancer vaccines Colorectal neoplasm Immunotherapy Neoplasm antigen tumor-associated antigens tumor-specific antigens Neoantigen(s)

UnDoing Buildings:Adaptive Reuse and Cultural Memory,by Sally ***,New York,*** 9781138226616

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Built Heritage 2022年第4期6卷 70-73页

作者： christina Malathouni School of Architecture University of LiverpoolAbercromby SquareLiverpool L697ZNMerseysideUK

Published by Routledge in 2020,the monograph Undoing Buildings:Adaptive Reuse and Cultural Memory is written by architect and educator Sally *** the title suggests,the book aims to cover a very important and topical subject as it focuses on the reuse of existing buildings and therefore also relates to all the associated environmental and cultural benefts of such *** recent award of the 2021 Pritzker Architecture Prize–a prize often paralleled to a Nobel Prize for Architecture–to Anne Lacaton and Jean-Philippe Vassal in recognition of their‘commitment to a restorative architecture that is at once technological,innovative,and ecologically responsive’,and whose critical choices have prioritised reuse and transformation of existing structures‘instead of demolition and reconstruction’。

关键词： Adaptive Stone Buildings

Urban sprawl in provincial capital cities in China: evidence from multi-temporal urban land products using Landsat data

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Science Bulletin 2019年第14期64卷 955-957页

作者： Linlin Lu Huadong Guo christina Corbane Qingting Li Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences Beijing 100094 China European Commission Joint Research Centre (JRC) Directorate for Space Security & Migration Ispra I-21027 Italy

The onset of global urbanization has led to a population shift from rural to urban areas and the expansion of urban development [1-3]. Urban land areas are growing at faster rates than their populations in most parts of the world [4]. The urban sprawl process refers to dispersed land development characterized by low-density, unplanned, and uneven patter ns of growth duri ng urban expansion. This process can result in inefficient use of land resources contradictory to the principle of sustainable development [5]. Additionally, urban sprawl has various environmental, economic, and social consequences, including the following: loss of agricultural land, higher costs for transportation infrastructure, increased landscape fragmentation, degeneration of soil ecological functions, and reduced ecosystem resilience. It is crucial to understand the trends and patterns of urban sprawl to implement a framework for sustainable urban development in developing regions.

关键词： urban development populations world

Hidden diversity revealed in the freshwater snails,Bythinella and Pseudamnicola,in the Island of Crete

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Integrative Zoology 2022年第5期17卷 804-824页

作者： Paraskevi Niki LAMPRI christina BOURANTA Canella RADEA Aristeidis PARMAKELIS Section of Ecology and Taxonomy Department of BiologyNational and Kapodistrian University of AthensAthensGreece Institute of Marine Biological Resources and Inland Waters Hellenic Centre for Marine ResearchAnavyssos AtticaGreece

Crete with its complex geomorphological history is the island with the highest number of endemism observed in animal and plant taxa throughout the Aegean *** other groups of organisms within Crete are well-studied,the freshwater gastropod fauna still remains poorly *** and Pseudamnicola,are 2 genera of freshwater springsnails,both present on the island,inhabiting springs and other freshwater ***,we conduct a comprehensive study on the distribution of the different genetic lineages of the 2 gastropod genera in order to assess the mode of their differentiation on the island and infer the actual number of species present in the *** these aims,sequence data from the mitochondrial gene were used and analyzed within a phylogenetic *** Bythinella,our results strongly support at least 5 delineated Bythinella *** Crete,which correspond to the already described species from previous studies with the addition of a new *** analyses reveal an old time-frame of differentiation with vicariant phenomena being more likely the main drivers shaping the present-day distribution of the genus’genetic *** Pseudamnicola,our data indicate the presence of at least 2 delineated Pseudamnicola *** a differentiation more consistent to an isolation-by-distance pattern of a relatively recent *** processes followed by isolation of the populations and/or recent speciation,seem to be the underlying process for the current distribution of Pseudamnicola lineages.

关键词： Aegean biodiversity freshwater snails mtDNA species delimitation