LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 5430

Search options

  1. Article ; Online: Rural area and agricultural region revitalisation modelling

    Zhu, Kunyan

    Land Degradation & Development. 2023 Jan. 15, v. 34, no. 1 p.42-51

    2023  

    Abstract: Comparing the per capita incomes of urban and rural households reveals a sizable income disparity in the latter, as well as an uneven distribution of income across China's regions. This article discusses and ranks the drivers that affect rural ... ...

    Abstract Comparing the per capita incomes of urban and rural households reveals a sizable income disparity in the latter, as well as an uneven distribution of income across China's regions. This article discusses and ranks the drivers that affect rural development. Among the most critical are farmer support factors, transportation infrastructure development, information and communication technology development, and rural entrepreneurship. The decline in the Engel coefficient, which reflects changes in welfare and income elasticity estimates of food demand, and income elasticity itself, indicates that food demand for Chinese farmers has become extremely inelastic. The ranking of China's regions in terms of per capita income growth shows that the intended policy of wealth equalisation of the country's population is being followed. The objective is to modernise agriculture and reduce regional disparities for China to achieve the status of a moderately developed country shortly, which will require state assistance. The emphasis is on farmer welfare, rural areas, and agriculture. In the face of massive population densities, regional disparities, and vast heterogeneous territory, the land consolidation practice is demonstrated in various regions as a platform and lever for rural life revitalisation. Rural tourism development is defined as a means of generating additional jobs and ensuring the long‐term viability of villages. The rural elite's decisive role in leading the agricultural sector's restructuring is emphasised. Central and local governments can use the results to strengthen the legislative framework, develop plans and programmes, and identify rural development models.
    Keywords agricultural industry ; communications technology ; developed countries ; entrepreneurship ; farmers ; income ; income elasticities ; infrastructure ; issues and policy ; land degradation ; rural areas ; rural development ; rural tourism ; transportation ; viability ; China
    Language English
    Dates of publication 2023-0115
    Size p. 42-51.
    Publishing place John Wiley & Sons, Ltd.
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 1319202-4
    ISSN 1085-3278
    ISSN 1085-3278
    DOI 10.1002/ldr.4442
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  2. Article ; Online: Advancements and strategic approaches in catenane synthesis.

    Chen, Qing / Zhu, Kelong

    Chemical Society reviews

    2024  

    Abstract: Catenanes, a distinctive category of mechanically interlocked molecules composed of intertwined macrocycles, have undergone significant advancements since their initial stages characterized by inefficient statistical synthesis methods. Through the aid of ...

    Abstract Catenanes, a distinctive category of mechanically interlocked molecules composed of intertwined macrocycles, have undergone significant advancements since their initial stages characterized by inefficient statistical synthesis methods. Through the aid of molecular recognition processes and principles of self-assembly, a diverse array of catenanes with intricate structures can now be readily accessed utilizing template-directed synthetic protocols. The rapid evolution and emergence of this field have catalyzed the design and construction of artificial molecular switches and machines, leading to the development of increasingly integrated functional systems and materials. This review endeavors to explore the pivotal advancements in catenane synthesis from its inception, offering a comprehensive discussion of the synthetic methodologies employed in recent years. By elucidating the progress made in synthetic approaches to catenanes, our aim is to provide a clearer understanding of the future challenges in further advancing catenane chemistry from a synthetic perspective.
    Language English
    Publishing date 2024-04-25
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472875-8
    ISSN 1460-4744 ; 0306-0012
    ISSN (online) 1460-4744
    ISSN 0306-0012
    DOI 10.1039/d3cs00499f
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Kai Zhu.

    Zhu, Kai

    The New phytologist

    2021  Volume 228, Issue 6, Page(s) 1719–1720

    MeSH term(s) Carbon ; Carbon Cycle ; Forests ; Trees
    Chemical Substances Carbon (7440-44-0)
    Language English
    Publishing date 2021-02-16
    Publishing country England
    Document type Interview
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.17026
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Establishment of an Evaluation Index System of Competencies for College Senior Students in General Practice Medicine in Anhui Province, China

    Zhao R / Liu F / Zhu K

    International Journal of General Medicine, Vol Volume 17, Pp 85-

    2024  Volume 92

    Abstract: Rui Zhao,1 Feng Liu,1 Kun Zhu2,3 1Department of General Practice Medicine, Bengbu Medical University, Bengbu, People’s Republic of China; 2Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical University, Bengbu, People’s Republic ... ...

    Abstract Rui Zhao,1 Feng Liu,1 Kun Zhu2,3 1Department of General Practice Medicine, Bengbu Medical University, Bengbu, People’s Republic of China; 2Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical University, Bengbu, People’s Republic of China; 3Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of ChinaCorrespondence: Kun Zhu, Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical University, No. 287, Changhuai Road, Bengbu, Anhui, 233000, People’s Republic of China, Tel +86-18755271096, Email zk19870128@163.comBackground: The competencies of college senior students in general practice medicine have attracted attention. This study aimed to construct an evaluation index system of competencies for college senior students in general practice medicine and to promote the reform and optimization of training programs for general medicine talent in colleges.Methods: The two-round Delphi method was used to determine the evaluation index system of competencies for college senior students in general practice medicine, and the analytic hierarchy process (AHP) was used to calculate the weights of all levels of elements.Results: The evaluation index system of competencies for college senior students in general practice medicine was established with 3 primary factors, 9 secondary factors and 32 tertiary factors. The Delphi results revealed that the active coefficient of experts was 1 and the authority coefficient was 0.858. The 3 primary factors were knowledge level, job skills and professionalism with weights of 0.1532, 0.4207 and 0.4261, respectively. Among the secondary factors, the top three weight coefficients were professional ethics (0.2614), community practice (0.1526) and communication skills (0.1308). Among tertiary factors, “scientific research” exhibited the lowest value with a weight coefficient of 0.0049.Conclusion: In this study, we constructed an evaluation index system of competencies for college senior ...
    Keywords evaluation index system;competencies;college senior students;general practice medicine ; Medicine (General) ; R5-920
    Subject code 370
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Dove Medical Press
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Article ; Online: Prenatal and postnatal MRI imaging findings of intracranial parasitic fetus: a case report.

    Zhu, Kai

    Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery

    2020  Volume 37, Issue 5, Page(s) 1803–1806

    Abstract: Fetus in fetu (FIF) is an extremely rare anomaly. It is predominantly seen retroperitoneally in 80% of cases but can present at atypical sites like the skull, sacrum, scrotum and the mouth. We reported a rare case of intracranial parasitic fetus. We ... ...

    Abstract Fetus in fetu (FIF) is an extremely rare anomaly. It is predominantly seen retroperitoneally in 80% of cases but can present at atypical sites like the skull, sacrum, scrotum and the mouth. We reported a rare case of intracranial parasitic fetus. We described the prenatal and postnatal MRI findings of the case. There was no obvious spinal signal on the imaging findings at 35 weeks of gestation. However, the postnatal MRI revealed spinal column signal at 5 months and 11 days.
    MeSH term(s) Female ; Fetus/diagnostic imaging ; Humans ; Magnetic Resonance Imaging ; Male ; Pregnancy ; Skull ; Twins, Conjoined ; Ultrasonography, Prenatal
    Language English
    Publishing date 2020-09-23
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ZDB-ID 605988-0
    ISSN 1433-0350 ; 0302-2803 ; 0256-7040
    ISSN (online) 1433-0350
    ISSN 0302-2803 ; 0256-7040
    DOI 10.1007/s00381-020-04891-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Understanding forest dynamics by integrating age and environmental change.

    Zhu, Kai

    The New phytologist

    2020  Volume 228, Issue 6, Page(s) 1728–1733

    Abstract: How much carbon a forest ecosystem can sequester is determined by both postdisturbance regrowth and environmentally modified growth. Disturbance causes sharp declines in the short term and is followed by regrowth in the long term. Environmental change ... ...

    Abstract How much carbon a forest ecosystem can sequester is determined by both postdisturbance regrowth and environmentally modified growth. Disturbance causes sharp declines in the short term and is followed by regrowth in the long term. Environmental change may alter carbon accumulation through increasing CO
    MeSH term(s) Carbon ; Climate Change ; Ecosystem ; Forests ; Trees
    Chemical Substances Carbon (7440-44-0)
    Language English
    Publishing date 2020-02-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.16412
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Development of a 50 kV hydrogen-helium mixed ion beam implanter.

    Huang, W / Cai, S X / Wang, L / Su, Y K / Zhu, K

    The Review of scientific instruments

    2024  Volume 95, Issue 4

    Abstract: Ion implanters have extensively been employed to simulate the irradiation effects of neutrons on relevant nuclear materials. In this study, a 50 kV hydrogen-helium mixed ion beam implanter was developed to generate H2+ and He+ ion beams, with a beam ... ...

    Abstract Ion implanters have extensively been employed to simulate the irradiation effects of neutrons on relevant nuclear materials. In this study, a 50 kV hydrogen-helium mixed ion beam implanter was developed to generate H2+ and He+ ion beams, with a beam current of 20 µA, while keeping the impurity ion content below 2%. The ions are generated by an antenna-type 2.45 GHz electron cyclotron resonance ion source, and the hydrogen-to-helium ion beam ratio was controlled using two gas mass flow controllers to ensure long time stability of the beam current. As a result, the H2+/He+ ratio, beam size, and homogeneity of the beam spot can be maintained at a stable level. The beam line consisted of four Wien filters, a movable dual-slit plate, and an accelerator tube. The experimental results demonstrated successful transport of more than 20 µA of H2+ and He+ ion beams onto the target, with a beam axis deviation of less than 0.5 mm.
    Language English
    Publishing date 2024-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0200849
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Harnessing herbaria to advance plant phenology research under global change.

    Zhu, Kai / Song, Yiluan

    The New phytologist

    2023  Volume 239, Issue 6, Page(s) 2057–2059

    MeSH term(s) Climate Change ; Plants
    Language English
    Publishing date 2023-06-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.19088
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Traversing the nucleation-growth landscape through heterogeneous random walks.

    Zhu, Kaicheng / Su, Haibin

    Physical review. E

    2023  Volume 107, Issue 6-1, Page(s) 64110

    Abstract: The nucleation-growth process is a crucial component of crystallization. While previous theoretical models have focused on nucleation events and postnucleation growth, such as the classical nucleation theory and Lifshitz-Slyozov-Wagner model, recent ... ...

    Abstract The nucleation-growth process is a crucial component of crystallization. While previous theoretical models have focused on nucleation events and postnucleation growth, such as the classical nucleation theory and Lifshitz-Slyozov-Wagner model, recent advancements in experiments and simulations have highlighted the inability of classical models to explain the transient dynamics during the early development of nanocrystals. To address these shortcomings, we present a model that describes the nucleation-growth dynamics of individual nanocrystals as a series of reversible chain reactions, with the free energy landscape extended to include activation-adsorption-relaxation reaction pathways. By using the Monte Carlo method based on the transition state theory, we simulate the crystallization dynamics. We derive a Fokker-Planck formalism from the master equation to describe the nucleation-growth process as a heterogeneous random walk on the extended free energy landscape with activated states. Our results reveal the transient quasiequilibrium of the prenucleation stage before nucleation starts, and we identify a postnucleation crossover regime where the dynamic growth exponents asymptotically converge towards classical limits. Additionally, we generalize the power laws to address the dimension and scale effects for the growth of large crystals.
    Language English
    Publishing date 2023-07-18
    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.107.064110
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Case report: A case of

    Zhu, Kang / Jin, Yingkang

    Frontiers in pediatrics

    2023  Volume 10, Page(s) 1077878

    Abstract: ... ...

    Abstract The
    Language English
    Publishing date 2023-01-09
    Publishing country Switzerland
    Document type Case Reports
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2022.1077878
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top