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  1. Article ; Online: Cyanide-bridged W(V)Mn(III) bimetallic chains composed of a blocked W hexacyanide precursor: geometry-related magnetic couplings and magnetostructural correlation.

    Lee, Jin Wuk / Lim, Kwang Soo / Ryu, Dae Won / Koh, Eui Kwan / Yoon, Sung Won / Suh, Byoung Jin / Hong, Chang Seop

    Inorganic chemistry

    2013  Volume 52, Issue 15, Page(s) 8677–8684

    Abstract: Five one-dimensional bimetallic W(V)Mn(III) complexes 1-5, consisting of [W(CN)6(bpy)](-) anions ... between structure and magnetic exchange coupling is established for the first time in W(V)Mn(III ... and [Mn(Schiff base)](+) cations, were prepared. The central coordination geometry around each W atom ...

    Abstract Five one-dimensional bimetallic W(V)Mn(III) complexes 1-5, consisting of [W(CN)6(bpy)](-) anions and [Mn(Schiff base)](+) cations, were prepared. The central coordination geometry around each W atom is determined as a distorted dodecahedron (DD) for 1 and 2, and a distorted square antiprism (SAPR) for 3-5. Magnetic analyses demonstrate that compounds 1, 4, and 5 exhibit antiferromagnetic interactions between magnetic centers, which are different from the ferromagnetic couplings in 2 and 3. For the distorted DD geometry, the Mn-N(ax) (ax = axial) bond length increases when moving from 1 to 2, with the Mn-N(ax)-C(ax) angle remaining constant. The elongation of the bond length is responsible for the reduction in orbital overlap and consequent ferromagnetic coupling in 2. In comparison, for 3-5 with the distorted SAPR geometry, given that the Mn-N(ax) bond lengths are similar across all the samples, the increase in the Mn-N(ax)-C(ax) angles accounts for the enhanced magnetic strength. Notably, a correlation between structure and magnetic exchange coupling is established for the first time in W(V)Mn(III) bimetallic systems based on the [W(CN)6(bpy)](-) precursor.
    MeSH term(s) Magnetic Phenomena ; Manganese/chemistry ; Models, Molecular ; Molecular Conformation ; Nitriles/chemistry ; Organometallic Compounds/chemical synthesis ; Organometallic Compounds/chemistry ; Tungsten/chemistry
    Chemical Substances Nitriles ; Organometallic Compounds ; Manganese (42Z2K6ZL8P) ; Tungsten (V9306CXO6G)
    Language English
    Publishing date 2013-08-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic400845z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Synthesis, crystal structures, and magnetic properties of cyanide-bridged W(V)Mn(III) anionic coordination polymers containing divalent cationic moieties: slow magnetic relaxations and spin crossover phenomenon.

    Yoon, Jung Hee / Lim, Kwang Soo / Ryu, Dae Won / Lee, Woo Ram / Yoon, Sung Won / Suh, Byoung Jin / Hong, Chang Seop

    Inorganic chemistry

    2014  Volume 53, Issue 19, Page(s) 10437–10442

    Abstract: ... ferrimagnetic behavior originating from the antiparallel alignment of W(V) and Mn(III) spins within the chain ... Two trimetallic coordination complexes were prepared by self-assembly of [W(CN)8](3-) and the Mn ...

    Abstract Two trimetallic coordination complexes were prepared by self-assembly of [W(CN)8](3-) and the Mn(III) Schiff base followed by the addition of a Zn(II) or Fe(II) cationic unit. The octacyanotungstate connects neighboring Mn(III) centers to form a one-dimensional chain. The anionic chain requires cationic units of Zn(II) or Fe(II) to maintain charge balance in the structure. The Zn-containing complex shows ferrimagnetic behavior originating from the antiparallel alignment of W(V) and Mn(III) spins within the chain, which leads to slow magnetic relaxation at low temperatures. For the Fe(II)-containing compound, Fe(II) moieties are integrated into the ferrimagnetic chains, altering their spin states depending on the temperature. It appears that the coexistence of high- and low-spin states in the low temperature regime is responsible for the slower and faster relaxations of the magnetization.
    Language English
    Publishing date 2014-10-06
    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/ic501506s
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Octacyanometalate-based ferrimagnetic M(V)Mn(III) (M = Mo, W) bimetallic chain racemates with slow magnetic relaxations.

    Yoo, Houng Sik / Ko, Hyun Hee / Ryu, Dae Won / Lee, Jin Wuk / Yoon, Jung Hee / Lee, Woo Ram / Kim, Hyoung Chan / Koh, Eui Kwan / Hong, Chang Seop

    Inorganic chemistry

    2009  Volume 48, Issue 13, Page(s) 5617–5619

    Abstract: Cyanide-bridged M(V)-Mn(III) (M = Mo, W) bimetallic chain complexes with racemic spatial ...

    Abstract Cyanide-bridged M(V)-Mn(III) (M = Mo, W) bimetallic chain complexes with racemic spatial dispositions were constructed by self-assembling [M(CN)(8)](3-) precursors and Mn(III) Schiff bases. Antiferromagnetic couplings between spin centers within a chain result in a ferrimagnetic nature, and slow magnetic relaxations are observed as well.
    MeSH term(s) Hydrogen Bonding ; Magnetics ; Metals/chemistry ; Models, Molecular ; Molecular Structure ; Stereoisomerism
    Chemical Substances Metals
    Language English
    Publishing date 2009-07-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic900879d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Cyanide-bridged W(V)Mn(III) single-chain magnet with isolated Mn(III) moieties exhibiting two types of relaxation dynamics.

    Yoon, Jung Hee / Lee, Jin Wuk / Ryu, Dae Won / Choi, Sang Yup / Yoon, Sung Won / Suh, Byoung Jin / Koh, Eui Kwan / Kim, Hyoung Chan / Hong, Chang Seop

    Inorganic chemistry

    2011  Volume 50, Issue 22, Page(s) 11306–11308

    Abstract: ... Schiff bases. This neutral complex consists of cyanide-linked W(V)Mn(III) anionic chains and isolated Mn(III ... A 5d-3d bimetallic compound was prepared by self-assembling [W(CN)(8)](3-) and the Mn(III ...

    Abstract A 5d-3d bimetallic compound was prepared by self-assembling [W(CN)(8)](3-) and the Mn(III) Schiff bases. This neutral complex consists of cyanide-linked W(V)Mn(III) anionic chains and isolated Mn(III) Schiff base cations. We demonstrate that two types of relaxation processes are involved in the system; the low-T dynamics may come from magnetic domain dynamics and the high-T relaxation stems from the anionic chain, revealing single-chain magnet character.
    MeSH term(s) Cyanides/chemistry ; Magnets/chemistry ; Manganese/chemistry ; Models, Molecular ; Molecular Conformation ; Schiff Bases/chemistry ; Tungsten/chemistry
    Chemical Substances Cyanides ; Schiff Bases ; Manganese (42Z2K6ZL8P) ; Tungsten (V9306CXO6G)
    Language English
    Publishing date 2011-11-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic202100y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: One-dimensional cyanide-bridged Mn(III)W(V) bimetallic complexes: metamagnetism, spontaneous resolution, and slow magnetic relaxation.

    Choi, Seok Woo / Ryu, Dae Won / Lee, Jin Wuk / Yoon, Jung Hee / Kim, Hyoung Chan / Lee, Hyosug / Cho, Beong Ki / Hong, Chang Seop

    Inorganic chemistry

    2009  Volume 48, Issue 19, Page(s) 9066–9068

    Abstract: The reaction of [W(CN)(6)(bpy)](-) with the corresponding Mn Schiff bases led to the formation ...

    Abstract The reaction of [W(CN)(6)(bpy)](-) with the corresponding Mn Schiff bases led to the formation of two antiferromagnetic (1) and ferromagnetic (2) chains. The formation of the conglomerate (2) is associated with chiral induction by the enantiomeric chelate-ring conformation of the Mn Schiff base. Modulation of the linking groups in the Mn Schiff bases affects the interchain contacts, causing alteration of the magnetic behaviors from metamagnetism (1) to slow magnetic relaxation (2).
    Language English
    Publishing date 2009-10-05
    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/ic901610j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Book ; Online: Total phytoplankton abundance and biomass in the surface and fluorescence maximum layers and contributions of dominant species to their values in the Werstern Arctic in July-August 2003, supplementary data to: Sergeeva, VM; Sukhanova, Irina N; Flint, Mikhail V; Pautova, LA; Grebmeier, Jacqueline M; Cooper, Lee W (2010): Phytoplankton community in the Western Arctic in July-August 2003. Translated from Okeanologiya, 2010, 50(2), 203-217, Oceanology, 50(2), 184-197

    Sergeeva, VM / Cooper, Lee W / Flint, Mikhail V / Grebmeier, Jacqueline M / Pautova, LA / Sukhanova, Irina N

    2010  

    Abstract: Phytoplankton community was studied in the Bering Strait and over the shelf, continental slope, and deep-water zones of the Chukchi and Beaufort Seas in the middle of the vegetative season (July-August 2003). Its structure was analyzed in relation to ice ...

    Abstract Phytoplankton community was studied in the Bering Strait and over the shelf, continental slope, and deep-water zones of the Chukchi and Beaufort Seas in the middle of the vegetative season (July-August 2003). Its structure was analyzed in relation to ice conditions and seasonal patterns of water warming, stratification, and nutrient concentrations. Overall variations in phytoplankton abundance from 200 to 6000000 cells/l and biomass from 0.1 to 444.1 ?g C/l.were estimated. The bulk of phytoplankton cells concentrated in the seasonal picnocline at depths 10-25 m. The highest values of cell abundance and biomass were recorded in regions influenced by inflow of Bering Sea waters or characterized by intense hydrodynamics, such as the Bering Strait, Barrow Canyon, and the outer shelf and slope of the Chukchi Sea. In the middle of the vegetative season, phytoplankton in the study region of the Western Arctic proved to comprise three successional (seasonal) assemblages: early spring, late spring, and summer assemblages. Their spatial distribution was dependent mainly on local features of hydrological and nutrient regimes rather than on general latitudinal trends of seasonal succession characteristic of arctic ecosystems.
    Language English
    Dates of publication 2010-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1134/S0001437010020049
    DOI 10.1594/PANGAEA.768329
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  7. Book: Clinical pathways in neuro-ophthalmology

    Smith, Stacy V. / Lee, Andrew G. / Brazis, Paul W.

    2019  

    Author's details Stacy Smith, MD ; Andrew G. Lee, MD ; Paul W. Brazis, MD
    Subject code 610
    Language English
    Size xvi, 300 Seiten, 32 Illustrationen, 17.8 cm x 25.4 cm
    Edition Third edition
    Publisher Thieme
    Publishing place New York
    Publishing country Germany
    Document type Book
    Note Zugang zur Online-Ausgabe über Code
    HBZ-ID HT019804577
    ISBN 978-1-62623-285-3 ; 1-62623-285-7 ; 9781626232860 ; 1626232865
    Database Catalogue ZB MED Medicine, Health

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    Shelf markLoan statusLocation
    2018 A 1908 available for loan (reading room) Lesesaal EG
    Zugang zur Online-Ausgabe über Code aus lizenzrechtlichen Gründen nicht verfügbar

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  8. Article: Cost-minimisation analysis of intravenous versus subcutaneous trastuzumab regimen for breast cancer management in Hong Kong.

    Lee, V W Y / Cheng, F W T

    Hong Kong medical journal = Xianggang yi xue za zhi

    2023  Volume 29, Issue 1, Page(s) 16–21

    Abstract: Introduction: In 2017, breast cancer was the most common cancer and third leading cause of cancer death among women in Hong Kong. Approximately 20% of patients were human epidermal growth factor receptor-2 (HER2)-positive. This study was conducted to ... ...

    Abstract Introduction: In 2017, breast cancer was the most common cancer and third leading cause of cancer death among women in Hong Kong. Approximately 20% of patients were human epidermal growth factor receptor-2 (HER2)-positive. This study was conducted to investigate cost differences between intravenous and subcutaneous trastuzumab regimens in Hong Kong using medical resources utilisation data from other countries.
    Methods: A cost-minimisation model was developed to compare the cost of total care, including direct medical cost and full-time equivalent (FTE) hours. The drug acquisition cost was obtained from the manufacturer, whereas the costs for hospitalisation and clinic visits were acquired from the Hong Kong Gazette. Time (in FTE hours) was determined by literature review. All costs were expressed in US dollars (US$1 = HK$7.8). Costs were not discounted because of the short time horizon. One-way deterministic sensitivity analysis was performed to identify the effects of changes in drug acquisition cost, changes in FTE hours (based on confidence intervals reported), and changes in body weight (±20%).
    Results: Literature review indicated that 0.18 FTE hour of nursing time (7.9 hours) and 0.14 FTE hour of pharmacist time (6.2 hours) could be saved each week if the subcutaneous formulation was used. Using data in 2017, after 18 cycles of treatment with subcutaneous trastuzumab, the drug acquisition and healthcare professional time costs were reduced by US$9451.28 and US$566.16, respectively, yielding an annual savings of over US$8 million.
    Conclusion: The subcutaneous formulation of trastuzumab is a potential cost-saving therapy for HER2-positive breast cancer patients in Hong Kong. The drug acquisition cost was the parameter with the greatest effect on the total cost of treatment.
    MeSH term(s) Humans ; Female ; Breast Neoplasms/drug therapy ; Hong Kong ; Trastuzumab ; Receptor, ErbB-2/metabolism ; Administration, Intravenous ; Health Care Costs ; Cost-Benefit Analysis
    Chemical Substances Trastuzumab (P188ANX8CK) ; Receptor, ErbB-2 (EC 2.7.10.1)
    Language English
    Publishing date 2023-02-03
    Publishing country China
    Document type Journal Article
    ZDB-ID 1239255-8
    ISSN 1024-2708
    ISSN 1024-2708
    DOI 10.12809/hkmj209000
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Single-Use vs Reusable Duodenoscopes: How Infection Knowledge Gaps Are Driving Environmental Harm and What Can Be Done.

    Smith, Matthew W / Hernandez, Lyndon V / Lee, Pamela / Martinello, Richard A / Singh, Hardeep / Sherman, Jodi D

    Gastroenterology

    2024  

    Language English
    Publishing date 2024-03-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80112-4
    ISSN 1528-0012 ; 0016-5085
    ISSN (online) 1528-0012
    ISSN 0016-5085
    DOI 10.1053/j.gastro.2024.02.040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.MO 572: Show issues

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  10. Article ; Online: Nanoparticle Targeting with Antibodies in the Central Nervous System.

    Lee, Ju Hyun / Chapman, Dana V / Saltzman, W Mark

    BME frontiers

    2023  Volume 4, Page(s) 12

    Abstract: Treatments for disease in the central nervous system (CNS) are limited because of difficulties in agent penetration through the blood-brain barrier, achieving optimal dosing, and mitigating off-target effects. The prospect of precision medicine in CNS ... ...

    Abstract Treatments for disease in the central nervous system (CNS) are limited because of difficulties in agent penetration through the blood-brain barrier, achieving optimal dosing, and mitigating off-target effects. The prospect of precision medicine in CNS treatment suggests an opportunity for therapeutic nanotechnology, which offers tunability and adaptability to address specific diseases as well as targetability when combined with antibodies (Abs). Here, we review the strategies to attach Abs to nanoparticles (NPs), including conventional approaches of chemisorption and physisorption as well as attempts to combine irreversible Ab immobilization with controlled orientation. We also summarize trends that have been observed through studies of systemically delivered Ab-NP conjugates in animals. Finally, we discuss the future outlook for Ab-NPs to deliver therapeutics into the CNS.
    Language English
    Publishing date 2023-03-31
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2765-8031
    ISSN (online) 2765-8031
    DOI 10.34133/bmef.0012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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