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Tian‐Hao Tu,Ji-Rui WANG,Jian-Qiang GU,Tian-Qi LI,Kun LV,Guo-Xin ZHOU,Zhi-Hong XU 한국곤충학회 2019 Entomological Research Vol.49 No.2
Due to habitat fragmentation, the loss of species diversity has been extensively studied. On the contrary, the effects of habitat fragmentation on functional diversity is still poorly understood. In the Thousand Island Lake, we conducted studies of insect functional diversity on a set of 29 isolated islands. We used 10 functional diversity indices from three aspects (functional richness, functional evenness and functional divergence) to respectively describe functional diversity of insects on sample islands. We found the following results: (i) The functional indices selected could reflect the functional diversity of sample islands and it is further proved that in general, three components of functional diversity were independent of each other; (ii) Sample islands could be divided into two categories, island JSD and the remaining islands; (iii) Functional richness increased with island area and shape index, but had no significant correlation with isolation. Likewise, both functional evenness and functional divergence had no significant correlation with island attributes. The conclusion to emphasize from our research is that: (i) habitat fragmentation reduced the biological functional diversity to some extent, further demonstrating the importance of habitat continuity in biodiversity protection; and (ii) for functional diversity protection of insects in a fragmented landscape, an island which has high approximate shape index values of at least hundred hectare magnitude order has a critical promoting effect.
ON THE POWER SEQUENCE OF A FUZZY MATRIX CONVERGENT POWER SEQUENCE
Tian, Zhou,Liu, De-Fu 한국전산응용수학회 1997 Journal of applied mathematics & informatics Vol.4 No.1
The convergence of the power sequence of an $n{\times}n$ fuzzy matrix has been studied. Some theoretical necessary and sufficient con-ditions have been established for the power sequence to be convergent generally. Furthermore as one of our main concerns the convergence index was studied in detail especially for some special types of Boolean matrices. Also it has been established that the convergence index is bounded by $(n-1)^2+1$ from above for an arbitrary $n{\times}n$ fuzzy matrix if its power sequence converges. Our method is concentrated on the limit behavior of the power se-quence. It helped us to make our proofs be simpler and more direct that those in pure algebraic methods.
( Zhou Zhou ),( Dong Hai Peng ),( Jin Shui Zheng ),( Gang Guo ),( Long Jun Tian ),( Zi Niu Yu ),( Ming Sun ) 생화학분자생물학회(구 한국생화학분자생물학회) 2011 BMB Reports Vol.44 No.5
We screened four B. thuringiensis strains whose parasporal inclusions contained the S-layer protein (SLP), and cloned two slp genes from each strain. Phylogenetic analysis indicated these SLPs could be divided into two groups, SLP1s and SLP2s. To confirm whether SLPs were present in the S-layer or as a parasporal inclusion, strains CTC and BMB1152 were chosen for further study. Western blots with isolated S-layer proteins from strains CTC and BMB1152 in the vegetative phase showed that SLP1s and SLP2s were constituents of the S-layer. Immunofluorescence utilizing spore-inclusion mixtures of strains CTC and BMB1152 in the sporulation phase showed that SLP1s and SLP2s were also constituents of parasporal inclusions. When heterogeneously expressed in the crystal negative strain BMB171, four SLPs from strains CTC and BMB1152 could also form parasporal inclusions. This temporal and spatial expression is not an occasional phenomenon but ubiquitous in B. thuringiensis strains. [BMB reports 2011; 44(5): 323-328]
Tian, Lei,Shi, Shaohua,Ma, Lina,Zhou, Xue,Luo, Shasha,Zhang, Jianfeng,Lu, Baohui,Tian, Chunjie The Korean Society of Ginseng 2019 Journal of Ginseng Research Vol.43 No.1
Background: Glomus intraradices is a species of arbuscular mycorrhizal fungi that, as an obligate endomycorrhiza, can form mutually beneficial associations with plants. Panax ginseng is a popular traditional Chinese medicine; however, problems associated with ginseng planting, such as pesticide residues, reduce the ginseng quality. Methods: In this experiment, we studied the effect of inoculating G. intraradices on several physiological properties and microbial communities of ginseng. UV-Visible Spectrum method was used to detect physical properties. Denaturing gradient gel electrophoresis method was used to analyze microbial communities. Results: The results indicated that inoculation with G. intraradices can improve the colonization rate of lateral ginseng roots, increase the levels of monomeric and total ginsenosides, and improve root activity as well as polyphenol oxidase and catalase activities. We also studied the bacterial and fungal communities in ginseng rhizospheric soil. In our study, G. intraradices inoculation improved the abundance and Shannon diversity of bacteria, whereas fungi showed a reciprocal effect. Furthermore, we found that G. intraradices inoculation might increase some beneficial bacterial species and decreased pathogenic fungi in rhizospheric soil of ginseng. Conclusion: Our results showed that G. intraradices can benefit ginseng planting which may have some instructive and practical significance for planting ginseng in farmland.
Zhou, Tian-Biao,Yin, Sheng-Sheng,Huang, Jian-Jian,Ou, Chao Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.7
Objective: The results from the published studies on the association between prohibitin 3' untranslated region C > T gene polymorphism and cancer risk are conflicting. This meta-analysis was performed to evaluate the relationship with cancer susceptibility overall, and to explore whether the T allele or TT genotype could become a predictive marker for cancer risk. Methods: Association studies were identified from the databases of PubMed, Embase, and Cochrane Library as of March 1, 2012, and eligible investigations were synthesized using the meta-analysis method. Results were expressed with odds ratios (OR) for dichotomous data, and 95% confidence intervals (CI) were also calculated. Results: Six investigations were identified for the analysis of association between the prohibitin 3' untranslated region C > T gene polymorphism and cancer risk, covering of 1,461 patients with cancer and 1,197 controls. There was a positive association between the T allele and cancer susceptibility (OR=1.20, 95% CI: 1.03-1.39, P=0.02), and CC homozygous might play a protective role (OR=0.80, 95% CI: 0.68-6.11, P=0.95). In the sub-group analysis, prohibitin 3' untranslated region C > T gene polymorphism and cancer risk appeared associated with the risk of breast cancer, but not ovarian cancer. Conclusions: Our results indicate that T allele is a significant genetic molecular marker to predict cancer susceptibility and CC genotype is protective, especially for breast cancer. However, more investigations are required to further clarify the association of the prohibitin 3' untranslated region C > T gene polymorphism with cancer susceptibility.
The Effects of Fu Zi on Changes in the Body Heat of Dogs
Tian-Tian Chen,Chunhua Qi,Huijun Guo,Ziqiang Cheng,Dong Zhou,Haitao Liu,Jianzhu Liu 사단법인약침학회 2009 Journal of Acupuncture & Meridian Studies Vol.2 No.1
The aim of the present study was to investigate the effects of Fu Zi on changes in the body heat of dogs. Twelve clinically healthy dogs were divided into two groups: the control group (six dogs) and the experimental group (six dogs). The control group was made to ingest normal saline mixed with canned meat, while the experimental group was made to ingest the Fu Zi solution mixed with canned meat. The infrared thermographic system was used to determine the level of body heat generated by these dogs. These areas include the dorsocranial (DCr), dorsocaudal (DCd), ventrocranial (VCr), and ventrocaudal (VCd) regions at pretreatment and were determined at 10, 20, 30, 50, 90, 120, 240, and 360 minutes after treatment for each of these areas. The results showed a tendency toward increased body heat until 30 minutes after ingestion of the Fu Zi powder mixed with canned meat. The significant differences in the changes of body heat were detected at 360 minutes in the DCd regions, 20 minutes in the VCr regions, and 30 minutes in the VCd regions between the experimental and control groups (p < 0.05). Based from our results, we find that Fu Zi can increase and maintain the dogs’ body heat for at least 6 hours. The aim of the present study was to investigate the effects of Fu Zi on changes in the body heat of dogs. Twelve clinically healthy dogs were divided into two groups: the control group (six dogs) and the experimental group (six dogs). The control group was made to ingest normal saline mixed with canned meat, while the experimental group was made to ingest the Fu Zi solution mixed with canned meat. The infrared thermographic system was used to determine the level of body heat generated by these dogs. These areas include the dorsocranial (DCr), dorsocaudal (DCd), ventrocranial (VCr), and ventrocaudal (VCd) regions at pretreatment and were determined at 10, 20, 30, 50, 90, 120, 240, and 360 minutes after treatment for each of these areas. The results showed a tendency toward increased body heat until 30 minutes after ingestion of the Fu Zi powder mixed with canned meat. The significant differences in the changes of body heat were detected at 360 minutes in the DCd regions, 20 minutes in the VCr regions, and 30 minutes in the VCd regions between the experimental and control groups (p < 0.05). Based from our results, we find that Fu Zi can increase and maintain the dogs’ body heat for at least 6 hours.