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Pregnancy Outcomes Associated with Ovarian Hyperstimulation Syndrome:A Retrospective Cohort Study of Infertile Women

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Maternal-Fetal Medicine 2023年第3期5卷 144-154页

作者： Ajleeta Sangtani Maryama lsmail Amy weaver Zaraq Khan Department of Obstetrics and Gynecology Mayo ClinicRochesterMN 55905USA Mayo Clinic Alix School of Medicine Mayo ClinicRochesterMN 55905USA Department of Health Sciences Research Mayo ClinicRochester.MN55905.USA

Objective to assess the relationship between ovarian hyperstimulation syndrome(OHSS)and adverse outcomes using population-based data in the United *** hypothesis is that patients with OHSS were more likely to deliver preterm and more likely to have hypertensive *** this retrospective cohort study identified 94 patients with OHSS and 183 matched referents in eight counties in *** were collected regarding pregnancy history,infertility treatment,and pregnancy *** the Rochester Epidemiology Project,study subjects were identified from female patients,aged 18 to 49 years,who were diagnosed with infertility from January 2,1995 to December 1,2017,and had a pregnancy greater than 20 weeks'*** primary outcome was preterm delivery or hypertensive disorder of pregnancy incidence in the OHSS group when compared with control ***-squared test,t test,and multivariate logistic models were used where *** Patients with OHSS were more likely to deliver preterm(odds ratio,2.14;95%confidence interval,1.26–3.65;Ptheir neonates were more likely to be small for gestational age(odds ratio,4.78;95%confidence interval,1.61–14.19;Pt differences between the groups were observed in any other *** with OHSS are more likely to deliver preterm if they undergo fresh transfer compared with a freeze all and subsequent frozen transfer(odds ratio,3.03,95%confidence interval,1.20–7.66,P=0.02).Conclusion OHSS may lead to preterm birth and small-for-gestational-age neonates,which changes patient counseling and leads to arranging specialized obstetrical care for these patients with OHSS.

关键词： Obstetric labor,premature Hypertension Frozen cycle Fresh cycle

Wireless organic electronic ion pumps driven by photovoltaics

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npj Flexible Electronics 2019年第1期3卷 126-131页

作者： Marie Jakešová theresia Arbring Sjöström VedranĐerek david Poxson Magnus Berggren Eric Daniel Głowacki Daniel t.Simon Laboratory of Organic Electronics ITN Campus NorrköpingLinköping UniversitySE-60174 NorrköpingSweden Wallenberg Centre for Molecular Medicine Linköping UniversitySE-58185 LinköpingSweden

the organic electronic ion pump(OEIP)is an emerging bioelectronic technology for on-demand and local delivery of pharmacologically active species,especially targeting alkali ions,and *** electrical control is advantageous for providing precise spatial,temporal,and quantitative delivery,traditionally,it necessitates *** complicates ***,we demonstrate integration of an OEIP with a photovoltaic driver on a flexible carrier,which can be addressed by red light within the tissue transparency *** thin-film bilayer photovoltaic pixels are arranged in series and/or vertical tandem to provide the 2.5–4.5 V necessary for operating the high-resistance electrophoretic ion *** demonstrate light-stimulated transport of cations,ranging in size from protons to *** device,laminated on top of the skin,can easily be driven with a red LED emitting through a 1.5-cm-thick *** end result of our work is a thin and flexible integrated wireless device platform.

关键词： precise transparency alkali

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香港大学学术库——机构知识库的应用扩展

大学图书馆学报 2015年第4期33卷 68-75页

作者： Liu Eliot Z H Palmer david t 港大学图书馆

香港大学学术库是香港大学的机构知识库,是响应大学知识交流政策而建立的知识管理系统。凭借丰富的数据来源以及合理的设计机制,学术库已成为颇具影响力的香港大学人才和科研成果的展示平台,成为校内外学术交流的中心,为学术评估和声誉... 详细信息

香港大学学术库是香港大学的机构知识库,是响应大学知识交流政策而建立的知识管理系统。凭借丰富的数据来源以及合理的设计机制,学术库已成为颇具影响力的香港大学人才和科研成果的展示平台,成为校内外学术交流的中心,为学术评估和声誉管理提供了基础。

关键词：机构知识库知识交流计量信息分析研究评审声誉管理

CD8:Adhesion Molecule,Co-Receptor and Immuno-Modulator

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Cellular & Molecular Immunology 2004年第2期1卷 81-88页

作者： david K Cole George F Gao Nuffield Department of Clinical Medicine John Radcliffe HospitalUniversity of OxfordHeadington Oxford OX3 9DUUnited Kingdom.

CD8 is a cell surface glycoprotein found in cytotoxic t lymphocytes,which are important components in cellular immunity,*** the immune response to cancer and chronic *** are two forms of CD8, either as an αα homodimer or αβ *** acts as an“assistant”or co-receptor in the function of cytotoxic t cells where specific immunity is mediated by interaction of specific t cell receptor(αβtCR)and its ligand peptide major histocompatibility complex(pMHC).CD8 also binds to pMHC but away from the interface of pMHC and tCR contact,thereof no influence on the specificity of this *** the tCR and CD8 bind to the same pMHC at the same time,CD8 is defined as a co-receptor,functioning through its signalling via its cytoplasmic tyrosine phosphorylation pathway;if CD8 binds to pMHC independently of the tCR,it is defined as an adhesion *** present,the co-receptor function theory is dominated in the field. Recent study has also shown that murine CD8αα binds to tL antigen,an MHC homologue,therefore acts as an *** this review,we discuss these current understandings of the three aspects of the CD8 functions and their structural *** & Molecular Immunology.2004;1(2):81-88.

关键词： CD8 t cell adhesion co-receptor immuno-modulator

AlGaN nanocrystals:building blocks for efficient ultraviolet optoelectronics

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Photonics Research 2019年第6期7卷 I0014-I0025页

作者： XIANHE LIU KISHWAR MASHOOQ david A.LALEYAN ERIC t.REID ZEtIAN MI Department of Electrical Engineering and Computer Science University of MichiganAnn Arbor Michigan 48109 USA Department of Electrical and Computer Engineering McGill UniversityMontreal Quebec H3A 0E9 Canada

AlGaN nanocrystals have emerged as the building blocks of future optoelectronic devices operating in the ultraviolet(UV) spectral range. In this article, we describe the design and performance characteristics of AlGaN nanocrystal UV light-emitting diodes(LEDs) and surface-emitting UV laser diodes. the selective-area epitaxy and structural, optical, and electrical properties of AlGaN nanocrystals are presented. the recent experimental demonstrations of AlGaN nanocrystal LEDs and laser diodes are also discussed.

关键词： AlGaN nanocrystals optoelectronics

On ultrahigh temperature crustal metamorphism:Phase equilibria,trace element thermometry,bulk composition,heat sources,timescales and tectonic settings

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Geoscience Frontiers 2015年第3期6卷 311-356页

作者： david E.Kelsey Martin Hand Department of Geology and Geophysics School of Physical SciencesThe University of Adelaide

Ultrahigh temperature （UHt） metamorphism is the most thermally extreme form of regional crustal metamorphism, with temperatures exceeding 900 ℃. UHt crustal metamorphism is recognised in more than 50 localities globally in the metamorphic rock record and is accepted as ＇normal＇ in the spectrum of regional crustal processes. UHt metamorphism is Wpically identified on the basis of diagnostic mineral assemblages such as sapphirine ＋ quartz, orthopyroxene ＋ sillimanite ＋ quartz and osumilite in Mg-Al- rich rock compositions, now usually coupled with pseudosection-based thermobarometry using internally-consistent thermodynamic data sets and/or Al-in-Orthopyroxene and ternary feldspar thermobarometry. Significant progress in the understanding of regional UHt metamorphism in recent years includes：（1） development of a ferric iron activity-composition thermodynamic model for sapphirine, allowing phase diagram calculations for oxidised rock compositions; （2） quantification of UHt conditions via trace element thermometry, with Zr-in-rutile more commonly recording higher temperatures than ti-in-zircon. Rutile is likely to be stable at peak UHt conditions whereas zircon may only grow as UHt rocks are cooling. In addition, the extent to which Zr diffuses out of rutile is controlled by chemical communication with zircon; （3） more fully recognising and utilising temperature-dependent thermal properties of the crust, and the possible range of heat sources causing metamorphism in geodynamic modelling studies; （4） recognising that crust partially melted either in a previous event or earlier in a long-duration event has greater capacity than fertile, unmelted crust to achieve UHt conditions due to the heat energy consumed by partial melting reactions; （5） more strongly linking U-Pb geochronological data from zircon and monazite to P-t points or path segments through using Y ＋ REE partitioning between accessory and major phases, as well as phase diagrams incorporating Zr and REE; and （

关键词： Sapphirine + quartz P-t pseudosections Zr-in-rutile ti-in-zircon U-Pb geochronology Subduction

Percutaneous Dilational tracheostomy in the Emergent Setting

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International Journal of Clinical Medicine 2013年第2期4卷 96-98页

作者： Andrew McCague david t. Wong Arrowhead Regional Medical Center Colton USA

Objective: Since its inception, the use of the percutaneous dilational tracheostomy (PDt) has been contraindicated in the setting of an emergent airway. Emerging in the literature are several cases of successful emergent PDts. Here we present our experience with the use of PDt in managing emergent airways. Study Design: All patients who underwent emergent PDt, using the Ciaglia Blue Rhino Introducer Set (Cook Critical Care, Bloomington,IN), in an academic county hospital setting between February 2010 and May 2012 were included in the study. Electronic medical records were reviewed for demographic and procedural data. Results: twelve patients were included in the study with ages ranging from 20 to 87 (mean 57) years-old. the most common reason for emergent airway was trauma (7 patients), followed by obstructing neck mass (2 patients), septic shock (2 patients), and angioedema (1 patient). Seven PDts were performed in the OR, four at bedside and one in the ER. three of the 12 patients had emergent cricothyroidotomies in place that malfunctioned, requiring emergent conversion. No patients suffered from short term complications. One patient developed a neck abscess at the site of the PDt one month post operatively, two patients had accidental decanulation post operatively, and both were replaced without complication. Conclusions: PDt can be used in the emergent setting in the hands of trained practitioners with minimal complications. A larger, prospective trial is needed to make conclusions regarding patient care.

关键词： Percutaneous Dilational tracheostomy Emergent Airway tracheostomy

Protocol Based Approach for tacit to Explicit Knowledge Conversion

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Computer technology and Application 2011年第1期2卷 75-79页

作者： david Kulandaisamy t Balasubramanian Ramanuj am Department of Computer Science ＆ Engineering Bharathidasan University Trichy 620023 India Faculty of Computer Applications Erode Builder Educational Trust＇s Group of Institutions Kangeyam Taluk 638 108 India

In the knowledge management domain, the conversion of tacit knowledge to explicit knowledge is critical because it is a prerequisite to the knowledge amplification process wherein knowledge becomes part of an organization＇s knowledge network. Although codified knowledge and its capture is commonplace, tacit knowledge has up until recent years proved elusive in its inclusion within the organization＇s knowledge base. In this paper, the conversion process has been dealt with the help of protocols. It is learned that while structure may significantly improve the tacit to explicit conversion process, it also may matter how the structure is employed. It is anticipated that eventual successful modeling of such knowledge will ultimately be undertaken in several organizations with a view to improving information capture and transference.

关键词： tacit knowledge explicit knowledge knowledge transfer knowledge management.

Data-Driven Earthquake Multi-impact Modeling:A Comparison of Models

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International Journal of Disaster Risk Science 2024年第3期15卷 421-433页

作者： Hamish Patten Max Anderson Loake david Steinsaltz Information Management International Federation of Red Cross and Red Crescent Societies(IFRC)1211GenevaSwitzerland Department of Statistics University of OxfordOxfordOX13LBUK

In this study,a broad range of supervised machine learning and parametric statistical,geospatial,and non-geospatial models were applied to model both aggregated observed impact estimate data and satellite image-derived geolocated building damage data for earthquakes,via regression-and classification-based models,*** the aggregated observational data,models were ranked via predictive performance of mortality,population displacement,building damage,and building destruction for 375 observations across 161 earthquakes in 61 *** the satellite image-derived data,models were ranked via classification performance(damaged/unaff ected)of 369,813 geolocated buildings for 26 earthquakes in 15 *** k-fold,3-repeat cross validation was used to ensure out-of-sample predictive *** importance of several variables used as proxies for vulnerability to disasters indicates covariate *** 2023 türkiye-Syria earthquake event was used to explore model limitations for extreme ***,applying the AdaBoost model on the 27,032 held-out buildings of the 2023 türkiye-Syria earthquake event,predictions had an AUC of ***,without any geospatial,building-specific,or direct satellite image information,this model accurately classified building damage,with significantly improved performance over satellite image trained models found in the literature.

关键词： Disaster risk modeling Earthquake impact models Machine learning Disaster statistics Satellite image-derived buildingdamage