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1

Stein open subsets with analytic complements in compact complex spaces

100%

Zhang J.

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2015

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tom 113

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nr 1

43-60

EN

Let Y be an open subset of a reduced compact complex space X such that X - Y is the support of an effective divisor D. If X is a surface and D is an effective Weil divisor, we give sufficient conditions so that Y is Stein. If X is of pure dimension d ≥ 1 and X - Y is the support of an effective Cartier divisor D, we show that Y is Stein if Y contains no compact curves, $H^i (Y,𝓞_Y) = 0$ for all i > 0, and for every point x₀ ∈ X-Y there is an n ∈ ℕ such that $Φ_{|nD|}^{-1}(Φ_{|nD|}(x₀)) ∩ Y$ is empty or has dimension 0, where $Φ_{|nD|}$ is the map from X to the projective space defined by a basis of $H⁰(X,𝓞_X(nD))$.

2

Fate in Thunderstorm by Cao Yu and Hippolytus by Euripides

100%

Zhang J.

Studia Azjatystyczne

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2016

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nr 2

137-151

EN

Theatre, as opposed to traditional Chinese drama, was introduced to China through the first Opium War, and the establishment of Chunliushe in Japan is regarded as the birth of the real Chinese play in 1907. Hereafter, many plays were written and performed in China and were accepted as new form plays. Thunderstorm (Leiyu), Cao Yu’s first play, was published in 1934, and became the first masterpiece of modern Chinese theatre, symbolizing its becoming mature. As the playwright admitted, it was influenced by classical Greek Plays, as well as by Henrik Ibsen. This paper reflects upon the theme of fate in Thunderstorm by Cao Yu and Hippolytus by Euripides. Although Cao Yu interpreted that he was influenced by western plays consciously or unconsciously, Thunderstorm has its own Chinese roots. Similarities and differences in the themes of fate are compared by time or history; ethnic or family aspects; and the individual or feminine. The indescribable fate of the protagonists leads to the agony they suffer inside and also effects them outside because of typical social beliefs and family life; meanwhile, it helped to bring fame to the two tragedies.

3

Cultivating Moral Competence of Chinese Undergraduates with KMDD-Sessions

100%

Zhang J.

Ethics in Progress

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2013

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tom 4

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nr 1

48-56

EN

This study describes the results of interventions with the Konstanz Method of Dilemma Discussion (KMDD) by Georg Lind, with 89 economics undergraduate participants sampled from Guangdong province. The participants’ mean C-score in the Moral Judgment Test increased only a little because of the teacher’s little experience in using KMDD, but otherwise the intervention produced good results: the participants showed great interest in KMDD although this teaching method is very different from the typical Chinese teaching, and they enjoyed the KMDD-sessions and the classroom atmosphere created through it. Students’ feedback will be useful for future application and research on KMDD in China.

4

Factors of Chinese Adolescents’ Moral Judgment Competence – Findings from Hubei Province

100%

Zhang J.

Ethics in Progress

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2012

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tom 3

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nr 1

83-95

EN

This paper uses MJT designed by German moral psychologist Lind as a measurement tool, selects 1933 teenagers from Wuhan, Xiangfan or Hubei province. The result shows that participants’ C-sore of different age is 16.90. Character of politic lies remarkable difference, and gender, profession, education, etc., doesn’t. But the specific characters of them have something to be concerned. On this basis, the author gives some advices and countermeasures for education departments.

5

On The Determinant of q-Distance Matrix of a Graph

51%

Li H.-H. , Su L. , Zhang J.

Discussiones Mathematicae Graph Theory

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2014

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tom 34

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nr 1

103-111

EN

In this note, we show how the determinant of the q-distance matrix Dq(T) of a weighted directed graph G can be expressed in terms of the corresponding determinants for the blocks of G, and thus generalize the results obtained by Graham et al. [R.L. Graham, A.J. Hoffman and H. Hosoya, On the distance matrix of a directed graph, J. Graph Theory 1 (1977) 85-88]. Further, by means of the result, we determine the determinant of the q-distance matrix of the graph obtained from a connected weighted graph G by adding the weighted branches to G, and so generalize in part the results obtained by Bapat et al. [R.B. Bapat, S. Kirkland and M. Neumann, On distance matrices and Laplacians, Linear Algebra Appl. 401 (2005) 193- 209]. In particular, as a consequence, determinantal formulae of q-distance matrices for unicyclic graphs and one class of bicyclic graphs are presented.

6

The Minimum Spectral Radius of Signless Laplacian of Graphs with a Given Clique Number

51%

Su L. , Li H.-H. , Zhang J.

Discussiones Mathematicae Graph Theory

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2014

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tom 34

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nr 1

95-102

EN

In this paper we observe that the minimal signless Laplacian spectral radius is obtained uniquely at the kite graph PKn−ω,ω among all connected graphs with n vertices and clique number ω. In addition, we show that the spectral radius μ of PKm,ω (m ≥ 1) satisfies [...] More precisely, for m > 1, μ satisfies the equation [...] where [...] and [...] . At last the spectral radius μ(PK∞,ω) of the infinite graph PK∞,ω is also discussed.

7

An efficient connected dominating set algorithm in wsns based on the induced tree of the crossed cube

45%

Zhang J. , Xu L. , Zhou S.-m. , Wu W. , Ye X.

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tom 25

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nr 2

295-309

EN

The connected dominating set (CDS) has become a well-known approach for constructing a virtual backbone in wireless sensor networks. Then traffic can forwarded by the virtual backbone and other nodes turn off their radios to save energy. Furthermore, a smaller CDS incurs fewer interference problems. However, constructing a minimum CDS is an NP-hard problem, and thus most researchers concentrate on how to derive approximate algorithms. In this paper, a novel algorithm based on the induced tree of the crossed cube (ITCC) is presented. The ITCC is to find a maximal independent set (MIS), which is based on building an induced tree of the crossed cube network, and then to connect the MIS nodes to form a CDS. The priority of an induced tree is determined according to a new parameter, the degree of the node in the square of a graph. This paper presents the proof that the ITCC generates a CDS with a lower approximation ratio. Furthermore, it is proved that the cardinality of the induced trees is a Fibonacci sequence, and an upper bound to the number of the dominating set is established. The simulations show that the algorithm provides the smallest CDS size compared with some other traditional algorithms.

8

Relationship between occupational factors and sleep disorders among petrochemical workers on Hainan Island, South China: a cross-sectional study

32%

Wu Q. , Fan S. , Zhou B. , Lu C. , Zhang N. , Su Z. , Peng J. , Yu D. , Zhang J.

International Journal of Occupational Medicine and Environmental Health

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2024

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tom 37

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nr 6

591-601

EN

Objectives The study aimed to examine the relationship between occupational factors and sleep disorders among employees in petrochemical enterprises. Material and Methods All participants from the employees of Hainan Petroleum Refining and Chemical Enterprises were recruited by the cluster sampling in June 1, 2022. The questionnaire used in this research was primarily composed of 3 sections: demographic characteristics, Pittsburgh Sleep Quality Index (PSQI) questionnaire and occupation-related factors affecting sleep disorders. A 1:1 propensity score matching (PSM) method was used to balance the demographic characteristics of the 2 groups. Multivariate logistic regression was employed to analyze the independent factors influencing sleep disorders. Results A total of 952 valid questionnaires were collected. The frequency of sleep disorders among the 952 participants was 41.9% (N = 399). After PSM, 356 pairs were successfully matched. There was no statistical difference in socio-demographic characteristics between sleep disorder groups (p > 0.05). The logistic regression analysis showed that employees with weekly working time >40 h exhibited a higher likelihood of sleep disorders (OR: 1.74, 95% CI: 1.09–2.82) than those working ≤40 h. Individuals exposed to high-temperature working environments were more likely to experience sleep disorders (OR: 1.77, 95% CI: 1.12–2.81), while the sleep disorder risk in those with occupational stress was 2.67-fold (OR: 2.67, 95% CI: 1.89–3.80). Employees in storage and transportation (OR: 3.34, 95% CI: 1.81–6.40) and other positions (OR: 1.68, 95% CI: 1.03–2.75) displayed a higher risk of sleep disorders than operational workers. Conclusions The frequency of sleep disorders among employees in petrochemical enterprises is high. Weekly working hours, type of work position, high-temperature exposure, and high occupational stress are associated with increased risk of sleep disorders among petrochemical workers. Health policymakers should fully consider these factors in improving the sleep quality of petrochemical workers.

9

Vps41, a protein involved in lysosomal trafficking, interacts with caspase-8

32%

Wang L. , Pan X. , He L. , Zhang R. , Chen W. , Zhang J. , Lu M. , Hua Z.-C.

Acta Biochimica Polonica

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2013

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tom 60

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nr 1

37-42

EN

Caspase-8 is a member of the cysteine-aspartic acid protease (caspase) family which plays a central role in apoptosis and development. We screened caspase-8 interacting proteins from mouse T-cell lymphoma and 7.5-day embryo cDNA libraries by yeast two-hybrid system and obtained eleven positive clones, including Vacuolar protein sorting 41 (Vps41), a protein involved in trafficking of proteins from the late Golgi to the vacuole. The interaction of Vps41 with caspase-8 was confirmed by co-immunoprecipitation (co-IP) and co-localization studies in HEK293T cells. Co-IP experiments also showed that Vps41 binds to the p18 subunit of caspase-8 through its WD40 region and RING-finger motif. Furthermore, we found that overexpression of Vps41 promotes Fas-induced apoptosis in A549 human lung adenocarcinoma cells. The cleavage of caspase-3, a caspase-8 downstream effector, was increased when cells were transfected with Vps41-overexpressing plasmid. Together, these results suggest a novel interaction of caspase-8 with Vps41 and provide a potential role of Vps41 beyond lysosomal trafficking.