LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 572

Search options

  1. Article ; Online: The scientific basis of 'net zero emissions' and its diverging sociopolitical representation.

    Becken, S / Miller, G / Lee, D S / Mackey, B

    The Science of the total environment

    2024  Volume 918, Page(s) 170725

    Abstract: The Net Zero Emissions (NZE) concept has created momentum for climate commitment made by national governments, cities, industries and individual companies. However, evidence of tangible decarbonisation is limited. Here we identify precarious differences ... ...

    Abstract The Net Zero Emissions (NZE) concept has created momentum for climate commitment made by national governments, cities, industries and individual companies. However, evidence of tangible decarbonisation is limited. Here we identify precarious differences between the scientific origin of NZE and its social representation in the wider public and explore the consequences of the resulting science-action gap for achieving global climate goals. A particular focus is given to 'offsetting', which is closely connected to the practical delivery of NZE but typically ignores that different types or carbon credits have different environmental efficacy. Revisiting the science related to the global carbon cycle demonstrates that a heavy reliance on any carbon offsetting that is not a permanent removal presents a real risk. Moreover, competition over scarce 'removal credits' distracts from the real tasks at hand, namely to rapidly decrease fossil fuel emissions, actively remove carbon through restoration, and protect existing terrestrial carbon sinks. Establishing separate targets for these distinct actions is an essential step towards disentangling current confusion. Whilst a 'race to net zero' may trigger innovation in the decarbonisation space, the restoration and protection of carbon sinks demands a collective approach where actors should focus on how to make real and verifiable contributions rather than claiming individual net zero scores.
    Language English
    Publishing date 2024-02-05
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2024.170725
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article: Message from the Editor-in-Chief.

    Lee, D S

    Nuclear medicine and molecular imaging

    2016  Volume 50, Issue 1, Page(s) 1–2

    Language English
    Publishing date 2016-02-12
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2541855-5
    ISSN 1869-3482 ; 1869-3474
    ISSN (online) 1869-3482
    ISSN 1869-3474
    DOI 10.1007/s13139-016-0396-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Entropy of international trades.

    Oh, Chang-Young / Lee, D-S

    Physical review. E

    2017  Volume 95, Issue 5-1, Page(s) 52319

    Abstract: The organization of international trades is highly complex under the collective efforts towards economic profits of participating countries given inhomogeneous resources for production. Considering the trade flux as the probability of exporting a product ...

    Abstract The organization of international trades is highly complex under the collective efforts towards economic profits of participating countries given inhomogeneous resources for production. Considering the trade flux as the probability of exporting a product from a country to another, we evaluate the entropy of the world trades in the period 1950-2000. The trade entropy has increased with time, and we show that it is mainly due to the extension of trade partnership. For a given number of trade partners, the mean trade entropy is about 60% of the maximum possible entropy, independent of time, which can be regarded as a characteristic of the trade fluxes' heterogeneity and is shown to be derived from the scaling and functional behaviors of the universal trade-flux distribution. The correlation and time evolution of the individual countries' gross-domestic products and the number of trade partners show that most countries achieved their economic growth partly by extending their trade relationship.
    Language English
    Publishing date 2017-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.95.052319
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Perioperative outcomes of laparoscopic low anterior resection using ArtiSential

    Kim, I K / Lee, C S / Bae, J H / Han, S R / Alshalawi, W / Kim, B C / Lee, I K / Lee, D S / Lee, Y S

    Techniques in coloproctology

    2024  Volume 28, Issue 1, Page(s) 25

    Abstract: Background: Total mesorectal excision using conventional straight fixed devices may be technically difficult because of the narrow and concave pelvis. Several laparoscopic articulating tools have been introduced as an alternative to robotic systems. The ...

    Abstract Background: Total mesorectal excision using conventional straight fixed devices may be technically difficult because of the narrow and concave pelvis. Several laparoscopic articulating tools have been introduced as an alternative to robotic systems. The aim of this study was to compare perioperative outcomes between laparoscopic low anterior resection using ArtiSential
    Methods: This retrospective study included 682 patients who underwent laparoscopic or robotic low anterior resection  for rectal cancer from September 2018 to December 2021. Among them, 82 underwent laparoscopic surgery using ArtiSential
    Results: There was no significant difference in the baseline characteristics between group A and B. Mean operative time was longer in group B than A (163.5 ± 61.9 vs 250.1 ± 77.6 min, p < 0.001). Mean length of hospital stay was not significantly different between the two groups (6.2 ± 4.7 vs 6.7 ± 6.1 days, p = 0.617). Postoperative complications, reoperation, and readmission within 30 days after surgery were similar between the two groups. Pathological findings revealed that the circumferential resection margins were above 10 mm in both groups (11.00 ± 7.47 vs 10.17 ± 6.25 mm, p = 0.960). At least 12 lymph nodes were sufficiently harvested, with no significant difference in the number harvested between the groups (20.5 ± 9.9 vs 19.7 ± 7.3, p = 0.753).
    Conclusions: Laparoscopic low anterior resection using ArtiSential
    MeSH term(s) Humans ; Robotic Surgical Procedures ; Propensity Score ; Retrospective Studies ; Laparoscopy ; Rectal Neoplasms/surgery
    Language English
    Publishing date 2024-01-17
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2083309-X
    ISSN 1128-045X ; 1123-6337
    ISSN (online) 1128-045X
    ISSN 1123-6337
    DOI 10.1007/s10151-023-02895-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 5842: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Fluctuations in complex networks with variable dimensionality and heterogeneity.

    Yoo, H-H / Lee, D-S

    Physical review. E

    2016  Volume 93, Issue 3, Page(s) 32319

    Abstract: Synchronizing individual activities is essential for the stable functioning of diverse complex systems. Understanding the relation between dynamic fluctuations and the connection topology of substrates is therefore important, but it remains restricted to ...

    Abstract Synchronizing individual activities is essential for the stable functioning of diverse complex systems. Understanding the relation between dynamic fluctuations and the connection topology of substrates is therefore important, but it remains restricted to regular lattices. Here we investigate the fluctuation of loads, assigned to the locally least-loaded nodes, in the largest-connected components of heterogeneous networks while varying their link density and degree exponents. The load fluctuation becomes finite when the link density exceeds a finite threshold in weakly heterogeneous substrates, which coincides with the spectral dimension becoming larger than 2 as in the linear diffusion model. The fluctuation, however, diverges also in strongly heterogeneous networks with the spectral dimension larger than 2. This anomalous divergence is shown to be driven by large local fluctuations at hubs and their neighbors, scaling linearly with degree, which can give rise to diverging fluctuations at small-degree nodes. Our analysis framework can be useful for understanding and controlling fluctuations in real-world systems.
    Language English
    Publishing date 2016-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.93.032319
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article ; Online: The Nfic-osterix pathway regulates ameloblast differentiation and enamel formation.

    Lee, D S / Roh, Song Yi / Park, Joo-Cheol

    Cell and tissue research

    2018  Volume 374, Issue 3, Page(s) 531–540

    Abstract: Enamel makes up the outermost layer of the crown and its hardness protects other dental tissues from various stimuli. Enamel cannot be regenerated once damaged because ameloblasts are lost during the tooth eruption. Since the ameloblast differentiation ... ...

    Abstract Enamel makes up the outermost layer of the crown and its hardness protects other dental tissues from various stimuli. Enamel cannot be regenerated once damaged because ameloblasts are lost during the tooth eruption. Since the ameloblast differentiation mechanism is still unknown, further research is essential for developing treatments for defective or damaged enamel. Previously, we have reported that osteoblast differentiation and bone formation were regulated through the runt-related transcription factor 2 (Runx2)-nuclear factor 1-C (Nfic)-osterix (Osx) pathway where Nfic directly controls Osx expression. This pathway regulates odontoblast differentiation and dentin formation as well. The aim of this study was to investigate if the same pathway is applicable for ameloblast differentiation. Structural enamel defects with disorganized ameloblasts and decreased proliferation activity of the cervical loop were observed in Nfic
    MeSH term(s) Ameloblasts/cytology ; Ameloblasts/metabolism ; Animals ; Biomarkers/metabolism ; Cell Differentiation ; Cell Line ; Cell Lineage ; Cell Proliferation ; Core Binding Factor Alpha 1 Subunit/metabolism ; Dental Enamel/metabolism ; Dental Enamel/ultrastructure ; Mice ; NFI Transcription Factors/deficiency ; NFI Transcription Factors/metabolism ; Signal Transduction ; Sp7 Transcription Factor/metabolism ; Tooth/metabolism ; Tooth/ultrastructure ; X-Ray Microtomography
    Chemical Substances Biomarkers ; Core Binding Factor Alpha 1 Subunit ; NFI Transcription Factors ; Sp7 Transcription Factor ; Sp7 protein, mouse
    Language English
    Publishing date 2018-08-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 125067-x
    ISSN 1432-0878 ; 0302-766X
    ISSN (online) 1432-0878
    ISSN 0302-766X
    DOI 10.1007/s00441-018-2901-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Ub I Zs.94: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article: The measurement of atmospheric concentrations and deposition of semi-volatile organic compounds.

    Lee, D S / Nicholson, K W

    Environmental monitoring and assessment

    2013  Volume 32, Issue 1, Page(s) 59–91

    Abstract: A physical description of semi-volatile organic compounds (SVOCs) is given, both in terms of their characteristic nature in the atmosphere and the processes which control their deposition. The currently adopted methods used to measure the atmospheric ... ...

    Abstract A physical description of semi-volatile organic compounds (SVOCs) is given, both in terms of their characteristic nature in the atmosphere and the processes which control their deposition. The currently adopted methods used to measure the atmospheric concentrations of SVOCs have been summarised, along with their shortcomings. Techniques and associated problems have also been reviewed for measurements of atmospheric deposition. A summary has been given of the requirements necessary for a full assessment of atmospheric SVOCs and their deposition.
    Language English
    Publishing date 2013-11-06
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/BF00548152
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 5186: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article ; Online: Self-attracting walk on heterogeneous networks.

    Kim, Kanghun / Kyoung, Jaegu / Lee, D-S

    Physical review. E

    2016  Volume 93, Issue 5, Page(s) 52310

    Abstract: Understanding human mobility in cyberspace becomes increasingly important in this information era. While human mobility, memory-dependent and subdiffusive, is well understood in Euclidean space, it remains elusive in random heterogeneous networks like ... ...

    Abstract Understanding human mobility in cyberspace becomes increasingly important in this information era. While human mobility, memory-dependent and subdiffusive, is well understood in Euclidean space, it remains elusive in random heterogeneous networks like the World Wide Web. Here we study the diffusion characteristics of self-attracting walks, in which a walker is more likely to move to the locations visited previously than to unvisited ones, on scale-free networks. Under strong attraction, the number of distinct visited nodes grows linearly in time with larger coefficients in more heterogeneous networks. More interestingly, crossovers to sublinear growths occur in strongly heterogeneous networks. To understand these phenomena, we investigate the characteristic volumes and topology of the cluster of visited nodes and find that the reinforced attraction to hubs results in expediting exploration first but delaying later, as characterized by the scaling exponents that we derive. Our findings and analysis method can be useful for understanding various diffusion processes mediated by human.
    Language English
    Publishing date 2016-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.93.052310
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article: Dibutyl phthalate, an alpha-glucosidase inhibitor from Streptomyces melanosporofaciens.

    Lee, D S

    Journal of bioscience and bioengineering

    2005  Volume 89, Issue 3, Page(s) 271–273

    Abstract: Dibutyl phthalate was found to inhibit alpha-glucosidase, alpha- and beta-mannosidases and beta-glucosidase, in that order of inhibition strength. Dibutyl phthalate was shown to be a reversible, slow-binding, noncompetitive inhibitor of yeast alpha- ... ...

    Abstract Dibutyl phthalate was found to inhibit alpha-glucosidase, alpha- and beta-mannosidases and beta-glucosidase, in that order of inhibition strength. Dibutyl phthalate was shown to be a reversible, slow-binding, noncompetitive inhibitor of yeast alpha-glucosidase with a K(i) value of 3.9 microM.
    Language English
    Publishing date 2005-10-03
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1465387-4
    ISSN 1347-4421 ; 1389-1723
    ISSN (online) 1347-4421
    ISSN 1389-1723
    DOI 10.1016/s1389-1723(00)88832-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4728: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article ; Online: Biconnectivity of the cellular metabolism: A cross-species study and its implication for human diseases.

    Kim, P / Lee, D-S / Kahng, B

    Scientific reports

    2015  Volume 5, Page(s) 15567

    Abstract: The maintenance of stability during perturbations is essential for living organisms, and cellular networks organize multiple pathways to enable elements to remain connected and communicate, even when some pathways are broken. Here, we evaluated the ... ...

    Abstract The maintenance of stability during perturbations is essential for living organisms, and cellular networks organize multiple pathways to enable elements to remain connected and communicate, even when some pathways are broken. Here, we evaluated the biconnectivity of the metabolic networks of 506 species in terms of the clustering coefficients and the largest biconnected components (LBCs), wherein a biconnected component (BC) indicates a set of nodes in which every pair is connected by more than one path. Via comparison with the rewired networks, we illustrated how biconnectivity in cellular metabolism is achieved on small and large scales. Defining the biconnectivity of individual metabolic compounds by counting the number of species in which the compound belonged to the LBC, we demonstrated that biconnectivity is significantly correlated with the evolutionary age and functional importance of a compound. The prevalence of diseases associated with each metabolic compound quantifies the compounds vulnerability, i.e., the likelihood that it will cause a metabolic disorder. Moreover, the vulnerability depends on both the biconnectivity and the lethality of the compound. This fact can be used in drug discovery and medical treatments.
    MeSH term(s) Biochemical Phenomena ; Biological Evolution ; Computational Biology ; Humans ; Metabolic Networks and Pathways/physiology ; Probability
    Language English
    Publishing date 2015-10-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/srep15567
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top