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  1. Article ; Online: Structural Properties of Some Vacancy-Ordered Platinum Halide Perovskites.

    Bennett, Caleb J / Brand, Helen E A / Yuen, Alexander K L / Nicholas, Maria K / Kennedy, Brendan J

    Inorganic chemistry

    2024  Volume 63, Issue 10, Page(s) 4681–4690

    Abstract: The structural changes that accompany the dehydration of ... ...

    Abstract The structural changes that accompany the dehydration of Na
    Language English
    Publishing date 2024-02-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c04288
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  2. Article ; Online: Ileal perforation from a dropped endoscopic staple.

    Yuen, Alexander Y L / Chua, Terence C

    ANZ journal of surgery

    2022  Volume 92, Issue 10, Page(s) 2749–2750

    MeSH term(s) Endoscopy ; Humans ; Ileal Diseases/diagnostic imaging ; Ileal Diseases/etiology ; Intestinal Perforation/diagnosis ; Intestinal Perforation/etiology ; Intestinal Perforation/surgery ; Sutures/adverse effects
    Language English
    Publishing date 2022-04-05
    Publishing country Australia
    Document type Case Reports
    ZDB-ID 2050749-5
    ISSN 1445-2197 ; 1445-1433 ; 0004-8682
    ISSN (online) 1445-2197
    ISSN 1445-1433 ; 0004-8682
    DOI 10.1111/ans.17682
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 180: Show issues Location:
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  3. Article ; Online: Do hospitals that participate in COVID-19 research differ from non-trial hospitals? A cross-sectional study of US hospitals.

    Kang, Daniel / Huang, Cher X / Yuen, Alexander D / Norris, Keith C / Vijayan, Tara

    Trials

    2023  Volume 24, Issue 1, Page(s) 504

    Abstract: Objectives: To compare hospitals that did and did not participate in clinical trials evaluating potential inpatient COVID-19 therapeutics.: Methods: We conducted a cross-sectional study of hospitals participating in trials that were registered on ... ...

    Abstract Objectives: To compare hospitals that did and did not participate in clinical trials evaluating potential inpatient COVID-19 therapeutics.
    Methods: We conducted a cross-sectional study of hospitals participating in trials that were registered on clinicaltrials.gov between April and August 2020. Using the 2019 RAND Hospital Dataset and 2019 American Community Survey, we used logistic regression modeling to compare hospital-level traits including demographic features between trial and non-trial hospitals.
    Results: We included 488 hospitals that were participating in 298 interventional trials and 4232 non-participating hospitals. After controlling for demographic and other hospital traits, we found that teaching status (OR 2.11, 95% CI 1.52-2.95), higher patient acuity (OR 7.48, 4.39, 13.1), and location in the Northeast (OR 1.83, 95% CI 1.18, 2.85) and in wealthier counties (OR: 1.32, 95% CI 1.16-1.51) were associated with increased odds of trial participation, while being in counties with more White residents was associated with reduced odds (OR 0.98, 95% CI 0.98-0.99).
    Conclusions: Hospitals participating and not participating in COVID-19 inpatient treatment clinical trials differed in many ways, resulting in important implications for the generalizability of trial data.
    MeSH term(s) Humans ; COVID-19/therapy ; Cross-Sectional Studies ; Hospitalization ; Hospitals ; Research Design
    Language English
    Publishing date 2023-08-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2040523-6
    ISSN 1745-6215 ; 1468-6694 ; 1745-6215
    ISSN (online) 1745-6215
    ISSN 1468-6694 ; 1745-6215
    DOI 10.1186/s13063-023-07450-6
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  4. Article ; Online: Tracheal and bronchial stent for native main bronchus laceration after lung transplantation.

    Pyarali, Fahim F / Yuen, Alexander / Chaux, George / Megna, Dominick J / Catarino, Pedro A / Zaffiri, Lorenzo / Rampolla, Reinaldo

    JTCVS techniques

    2023  Volume 21, Page(s) 247–250

    Language English
    Publishing date 2023-08-19
    Publishing country United States
    Document type Case Reports
    ISSN 2666-2507
    ISSN (online) 2666-2507
    DOI 10.1016/j.xjtc.2023.08.009
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  5. Article ; Online: MR imaging biomarkers in HCC: outcomes correlation in liver transplant listed patients.

    Wibulpolprasert, Pornphan / Agopian, Vatche / Dumronggittigule, Wethit / Lee, Yong Seok / Yuen, Alexander / Raman, Steven S / Markovic, Daniela / Lu, David S

    Clinical transplantation

    2023  Volume 37, Issue 4, Page(s) e14919

    Abstract: Purpose: To determine hepatocellular carcinoma (HCC) magnetic resonance imaging (MRI) biomarkers that enable the prediction of delisting from tumor progression versus successful transplantation in patients listed for orthotopic liver transplantation ( ... ...

    Abstract Purpose: To determine hepatocellular carcinoma (HCC) magnetic resonance imaging (MRI) biomarkers that enable the prediction of delisting from tumor progression versus successful transplantation in patients listed for orthotopic liver transplantation (OLT).
    Methods: With IRB approval and HIPPA compliance, patients with HCC awaiting OLT who were delisted due to HCC progression from 2006 to 2015 were identified. Patients with adequate MR images for review were subsequently matched with a cohort of patients successfully bridged to OLT in the same time period. Matching considered the tumor stage and the dominant treatment strategy adopted to bridge the patient to OLT. Potential MRI features were evaluated by univariable and multivariable analysis using a conditional logistic model.
    Results: There were 53 patients included in each cohort. On uni-variable analysis, significant unfavorable MR imaging features included T2 hyperintensity (odds ratio [OR], 19.0), infiltrative border (OR, 7.50), lobulated shape (OR, 4.5), T1 hypointensity (OR, 3.0), heterogeneous arterial enhancement (OR, 7.0), and corona venous enhancement (OR, 4.0). A significant favorable MR imaging feature was the presence of intralesional fat (OR = .36). The best multivariable logistic prediction model derived from the above notable features included only T1 and T2 signal intensity, border definition, and absence of intra-lesional fat as significant variables, with an area under the receiver operating characteristic curve (AUC) of .86 in the prediction of delisting.
    Conclusion: Select MR imaging features of HCC at presentation before any treatment are significantly associated with the risk of tumor progression regardless of tumor stage and treatment strategy in patients awaiting liver transplantation.
    MeSH term(s) Humans ; Carcinoma, Hepatocellular/diagnostic imaging ; Carcinoma, Hepatocellular/surgery ; Carcinoma, Hepatocellular/pathology ; Liver Transplantation ; Liver Neoplasms/diagnostic imaging ; Liver Neoplasms/surgery ; Liver Neoplasms/pathology ; Gadolinium DTPA ; Magnetic Resonance Imaging/methods ; Biomarkers ; Retrospective Studies ; Contrast Media
    Chemical Substances Gadolinium DTPA (K2I13DR72L) ; Biomarkers ; Contrast Media
    Language English
    Publishing date 2023-02-13
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 639001-8
    ISSN 1399-0012 ; 0902-0063
    ISSN (online) 1399-0012
    ISSN 0902-0063
    DOI 10.1111/ctr.14919
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    Zs.A 2204: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  6. Article ; Online: Synthesis, Structure, and Properties of 2O-BaPtO

    Brown, Alex J / Miller, Laura A / Berry, Andrew J / Lewis, William / Barnett, Christopher / Yuen, Alexander / Brennan, Mia J / Auckett, Josie E / Maynard-Casely, Helen E / Ling, Chris D

    Inorganic chemistry

    2024  Volume 63, Issue 11, Page(s) 5098–5106

    Abstract: We have made the compound 2O- ... ...

    Abstract We have made the compound 2O-BaPtO
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.4c00002
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  7. Article: Step by step extraction of bio-actives from the brown seaweeds, Carpophyllum flexuosum, Carpophyllum plumosum, Ecklonia radiata and Undaria pinnatifida

    Zhang, Rui / Yuen, Alexander K.L / de Nys, Rocky / Masters, Anthony F / Maschmeyer, Thomas

    Algal research. 2020 Dec., v. 52

    2020  

    Abstract: The biorefinery concept is a framework to address the concerns raised by single product extraction from renewable resources. Whereas single product extraction can involve high costs and generate large amounts of waste, the biorefinery process aims to ... ...

    Abstract The biorefinery concept is a framework to address the concerns raised by single product extraction from renewable resources. Whereas single product extraction can involve high costs and generate large amounts of waste, the biorefinery process aims to fully utilise the biomass to produce multiple products and energy together. In this study, the step-by-step extraction of pigments, mannitol, phlorotannins, carbohydrates, alginates and residual seaweed from four species of brown seaweeds Carpophyllum flexuosum, Carpophyllum plumosum, Ecklonia radiata and Undaria pinnatifida was investigated. The yields, calculated based on algal dry weight of each product in each species of seaweed, were between 3.4 and 9.8% (pigments), 22.2–30.7% (mannitol), 0.1–5.1% (phlorotannins), 5.2–15.5% (alginates), 12.2–18.5% (other carbohydrates) and 13.5–19.5% (residual seaweed). The characterisation of each product fraction was performed and their potential applications are discussed. The results indicate that brown seaweeds are potential candidates for a biorefinery process to produce both value-added bio-materials and bio-energy.
    Keywords Carpophyllum flexuosum ; Ecklonia radiata ; Undaria pinnatifida ; alginates ; bioenergy ; biomass ; biorefining ; energy ; extraction ; macroalgae ; mannitol ; pigments ; research ; value added ; wastes ; weight ; yields
    Language English
    Dates of publication 2020-12
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-light
    ISSN 2211-9264
    DOI 10.1016/j.algal.2020.102092
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Real-time transcription polymerase chain reaction cycle threshold values as criteria for utilization of incidental COVID-19 positive lung donors.

    Hwang, Josephine / Yuen, Alexander / Rhoades, Joshua / Barnes, Darina / Zakowski, Phillip / Megna, Dominick J / Catarino, Pedro / Zaffiri, Lorenzo / Rampolla, Reinaldo

    The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation

    2022  Volume 42, Issue 3, Page(s) 301–304

    Abstract: Shortage of organ donors is an ongoing limiting factor in lung transplantation (LT). Despite increasing prevalence of asymptomatic COVID-19 infection, positive COVID-19 testing from a potential donor remains a contraindication at many LT centers. In this ...

    Abstract Shortage of organ donors is an ongoing limiting factor in lung transplantation (LT). Despite increasing prevalence of asymptomatic COVID-19 infection, positive COVID-19 testing from a potential donor remains a contraindication at many LT centers. In this report, we present the outcomes of LT utilizing an algorithm based on donor clinical presentation, and COVID-19 real-time reverse transcription polymerase chain reaction (RT-PCR) with cycle threshold (Ct) values evaluation. The Ct value threshold for organ acceptance was >35. A total of 8 COVID-positive donors were included. No donor-to-recipient transmissions of COVID-19 were observed. Short-term outcomes were comparable to those reported in pre-COVID literature. Survival-to-date is 100% with median POD of 161 days. Our findings support the safety and efficacy of utilizing our algorithm including Ct value threshold for selection of donors with incidental COVID-19 positive testing.
    MeSH term(s) Humans ; COVID-19/diagnosis ; COVID-19 Testing ; Tissue Donors ; Lung/diagnostic imaging ; Polymerase Chain Reaction ; Real-Time Polymerase Chain Reaction
    Language English
    Publishing date 2022-12-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1062522-7
    ISSN 1557-3117 ; 1053-2498
    ISSN (online) 1557-3117
    ISSN 1053-2498
    DOI 10.1016/j.healun.2022.12.016
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    Zs.A 2056: Show issues Location:
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  9. Article ; Online: Elephant seals time their long-distance migrations using a map sense.

    Beltran, Roxanne S / Yuen, Alexander L / Condit, Richard / Robinson, Patrick W / Czapanskiy, Max F / Crocker, Daniel E / Costa, Daniel P

    Current biology : CB

    2022  Volume 32, Issue 4, Page(s) R156–R157

    Abstract: Many marine animals migrate between foraging areas and reproductive sites, often timing the return migration with extreme precision. In theory, the decision to return should reflect energy acquisition at foraging areas, energetic costs associated with ... ...

    Abstract Many marine animals migrate between foraging areas and reproductive sites, often timing the return migration with extreme precision. In theory, the decision to return should reflect energy acquisition at foraging areas, energetic costs associated with transit, and timing arrival for successful reproduction. For long-distance migrations to be successful, animals must integrate 'map' information to assess where they are relative to their reproductive site as well as 'calendar' information to know when to initiate the return migration given their distance from home
    MeSH term(s) Animals ; Female ; Pacific Ocean ; Pregnancy ; Reproduction ; Seals, Earless
    Language English
    Publishing date 2022-03-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2022.01.031
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    Zs.A 3208: Show issues Location:
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  10. Article ; Online: Hydrothermal Liquefaction of α-O-4 Aryl Ether Linkages in Lignin.

    Lui, Matthew Y / Chan, Bun / Yuen, Alexander K L / Masters, Anthony F / Maschmeyer, Thomas

    ChemSusChem

    2020  Volume 13, Issue 8, Page(s) 2002–2006

    Abstract: By using lignin model compounds with relevant key characteristic structural features, the reaction pathways of α-O-4 aryl ether linkages under hydrothermal conditions are elucidated. Experimental results and computational modeling suggest that the α-O-4 ... ...

    Abstract By using lignin model compounds with relevant key characteristic structural features, the reaction pathways of α-O-4 aryl ether linkages under hydrothermal conditions are elucidated. Experimental results and computational modeling suggest that the α-O-4 linkages in lignin undergo catalyzed hydrolysis and elimination to give phenolic and alkenylbenzene derivatives as major products in subcritical water. The decreased relative permittivity of water at these high temperatures and pressures facilitates the elimination reactions. The alkyl group on the α-carbon and the methoxy groups on the phenyl rings both have positive effects on the rate of conversion of α-O-4 linkages in native lignin.
    Language English
    Publishing date 2020-02-27
    Publishing country Germany
    Document type Journal Article
    ISSN 1864-564X
    ISSN (online) 1864-564X
    DOI 10.1002/cssc.201903263
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