Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties submitted time 2024-06-04
Siyan Gao
Junlin Jia
Xu Wang
Yue-Yu Zhang
Yijie Xiang
Pei Li
Ruobing Yi
Xuchang Su
Guosheng Shi
Feifei Qin
Yi-Feng Zheng
Lei Chen
Yu Qiang
Junjie Zhang
Lei Zhang
Haiping Fang
Abstract： The expanding applications call for novel new-generation wide-bandgap semiconductors. Here, we show that a compound only composed of the ordinary elements Na and Cl, namely three-dimensional NaCl2 crystal, is a wide-bandgap semiconductor. This finding benefits from the breaking of conventional stoichiometry frameworks in the theoretical design, leading to the discovery of three-dimensional XY2 (X = Na, Li, K; Y = Cl, F, Br, I) crystals, with covalent bonds of Y pairs inducing the wide bandgap from 2.24 to 4.45 eV. Crucially, such an unexpected NaCl2 crystal was successfully synthesized under ambient conditions. The unconventional stoichiometric strategy with other chemical elements potentially yields more wide-bandgap semiconductors, offering the capability for bandgap tuning. These unconventional stoichiometric materials may also exhibit superconductivity, transparent inorganic electrides, high-energy-density, and beyond.
Peer Review Status:
Awaiting Review
Subjects: Mathematics >> Algebra and Number Theory submitted time 2024-06-03
Abstract： We give a kind of self-adjoint operator, whose spectrums are the set $S_ chi= {i( rho- frac{1}{2}) mid rho text{ is nontrivial zeros of $L$-function } L( chi,s) }$.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2024-06-03
Abstract： Interpersonal invisibility refers to the intentional or unintentional disregard of individuals in social interactions, resulting in cognitive, emotional, and behavioral disengagement or reduced engagement. Essentially, it represents an implicit form of interpersonal devaluation and exclusion. Interpersonal invisibility is closely linked to social hierarchy, with individuals of lower social hierarchy being more susceptible to experiencing it. Theoretical frameworks such as sociocultural mechanisms, the status hypothesis, affordance-management theory, and intersectional invisibility theory serve as crucial perspectives for explaining this phenomenon. Future research should further refine the conceptualization and measurement of interpersonal invisibility, deepen theoretical investigations into its effects on individuals of lower social hierarchy, explore the interaction between the social hierarchy of both interactants, address and mitigate the negative consequences of interpersonal invisibility, and examine its unique effects within the context of Chinese culture.
Subjects: Library Science，Information Science >> Libraries submitted time 2024-06-02 Cooperative journals: 《高校图书馆工作》
Abstract： In order to solve the problem of unbalanced and inadequate development in urban and rural areas and further improve the living standards of farmers, the rural revitalization strategy has been put forward in China. Rural cultural revitalization is an important part of rural revitalization, and rural public cultural service is the main carrier of rural cultural revitalization. Through literature research, network research and case analysis, the article makes a systematic review of the research and practice results of rural public cultural services in China to promote rural revitalization, analyzing in depth the logical relationship and internal mechanism of rural public cultural services to promote rural revitalization. The study finds that there are three main models of rural public cultural services to advance rural revitalization:cultural soul-building, integration of culture and tourism, and cultural and agricultural mutual assistance. The article also analyzes how rural public cultural services can better promote rural revitalization and achieve high-quality development with respect to key elements such as environmental patterns, participating subjects, product services, and realization methods.
Subjects: Library Science，Information Science >> Information Science submitted time 2024-06-02 Cooperative journals: 《高校图书馆工作》
Abstract： The emergence and development of Artificial Intelligence Generated Content (AIGC) will help to create a new library service format, which will enable libraries to transform from traditional services to knowledge services and generative content services. Based on exploring the historical evolution of library content generation mode, the article focuses on the technical basis and intrinsic characteristics of AIGC empowering the construction of smart libraries, as well as the application scenarios of the development of the integration of AIGC and smart libraries. Finally, it proposes development strategies such as improving the construction of basic corpus, training high-quality large-scale language models, enhancing the digital literacy of relevant personnel, and upgrading the infrastructure of smart libraries, so as to help smart libraries create diverse service application scenarios to meet the diversified and personalized needs of users.
Subjects: Library Science，Information Science >> Library Science submitted time 2024-06-02 Cooperative journals: 《高校图书馆工作》
Abstract： ChatGPT has sparked a transformation in library construction and evaluation standards, as well as in the methods of library services, gradually advancing innovation in the overall public cultural security strategy. ChatGPT contributes to the enhancement of library services, including intelligent recommendations, search capabilities, classification, translation, and editing, thereby enriching users’ three-dimensional and immersive perceptual experiences. But it also brings risks and challenges for libraries in terms of user privacy, information data, and ideology. For this reason, it is necessary to optimize the development path to enhance the library’s intelligent service and security guarantee. Firstly, it entails promoting technological innovation and optimizing infrastructure to establish a robust intelligent service system for libraries, thereby dismantling the technological hegemony controlled by capital. Secondly, it involves constructing a data supervision platform to enhance intelligent services. This includes promoting the development of a collaborative mechanism for the diverse construction of libraries and defending the primary ideological position of socialism in our country. Thirdly, it is imperative to nurture a skilled workforce and cultivate the next generation. Coordinating efforts from various sources collaboratively stimulates the learning effectiveness of individuals, fostering a team of technologically innovative talents with unwavering ideals and the courage to pioneer breakthroughs.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： To investigate the characteristics of the fungal community and potential key pathogens, ITS rDNA gene amplicon sequencing technology and FUNGuild analysis were used to study the fungal community composition, network characteristics and ecological function groups in rotting tubers of Dioscorea. sp. Additionally, potential pathogenic fungi were isolated and identified. The results were as follows: ( 1 ) In rotting tubers of Dioscorea sp., the dominant phylum was Ascomycota, and prevalent fungal genera included Penicillium, Colletotrichum, Fusarium, Talaromyces, Clonostachys, etc. The fungal molecular ecological network exhibited a clear modular structure with a high ratio of positive correlation edges (99.33%), suggesting that positive cooperation was strengthen between different fungi. ( 2 ) FUNGuild analysis indicated that 10 guilds were highly correlated with yam tuber rot. Among these guilds, the relative abundances of dung saprotroph-undefined saprotroph-wood saprotroph and endophyte-plant pathogen were 33.74% and 23.64%, respectively, and the representative genera were Penicillium and Colletotrichum, respectively. Additionally, three guilds were related to both plant pathogen and wood saprotroph, and occupied 13.67% of the ecological functional groups. Moreover, Fusarium was representative genus of all three guilds. Traits analysis showed that some fungi (Penicillium, Fusarium, etc.) in the fungal community were probably invovled in yam tuber rot. ( 3 ) A total of 22 strains were isolated and belonged to 6 genera, including Fusarium ( 9 strains ), Penicillium ( 5 strains ) and Aspergillus ( 4 strains ), etc. This study provides an important reference for understanding the pathogenesis of tuber rot in Dioscorea sp., and for the selection of appropriate pesticides and biocontrol microbes.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： Diospyros dasyphylla Kurz and Diospyros sumatrana Miq. ( Ebenaceae ) are reported as newly recorded species in China. Their diagnostic characters, habitat and distribution of the two newly recorded species are provided. The endangered category of the two newly recorded species is assessed based on field survey. D. dasyphylla closely resembles D. xylocarpa Y. M. Shui, W. H. Chen & Sima, However, it can be distinguished by its young branchlets and leaves, which are densely covered with yellow-brown hairs. Another distinctive feature of D. dasyphylla is its mature fruit, approximately 6 cm in diameter, accompanied by a fruit calyx measuring 8 mm. D. sumatrana is similar to D. elliptifolia Merr., but differs in its white and urceolate corolla, fruit 2 cm in diameter and erected calyx. The voucher specimens are deposited in Herbarium of Guangxi Institute of Botany ( IBK ) and Museum of Beijing Forestry University ( BJFC ). These findings provide new basic data for the biodiversity research of Diospyros plants in China.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： The green leaves, variegated leaves and yellow leaves of Yulania denudata with variegated leaf were used as experimental materials. The anatomical structure and photosynthetic characteristics of three types of leaves were compared from the aspects of photosynthetic pigment content, leaf anatomical structure and light response curve, the factor of photosynthetic characteristics of Y. denudata with variegated leaf was revealed from anatomy. The the result of research as follows: (1) The yellow leaf spots of Y. denudata with variegated leaf is chlorophyll-type leaf spots formed by the decrease of chlorophyll content due to the abnormal structure of chloroplasts. (2) The structure of the thylakoids in the yellow region of the flower and leaf Y. denudata with variegated leaf was abnormal, and ATP synthesis was blocked, which hindered the progress of photosynthesis. (3) The anatomical structure showed that the palisade tissue of the green leaf was developed, the chloroplast integrity and pigment content were higher than that of the variegated leaf and the yellow leaf, and the net photosynthetic rate was higher. (4) There was a significant difference in the maximum net photosynthetic rate and light saturation point between the green leaf and the variegated leaf, and the green leaf can withstand a wider range of bright light than the variegated leaf. This study further elucidates that that the chloroplast structure of Y. denudata with variegated leaf affected its photosynthetic characteristics, and the results provided references for the breeding of fine varieties.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： In order to reveal the albino mechanism of gold-coloured mutant leaves of Cyclobalanopsis gilva, a naturally-occurring leaf-color mutant was used as experimental materials, and the metabolome and transcriptome of mutant leaves and normal green leaves were analyzed by UHPLC-Q Exactive HF-X and high-throughput RNA sequencing, respectively. The results were as follows: ( 1 ) 257 and 357 significantly changed metabolites ( SCMs ) were respectively identified under the positive ion mode and the negative ion mode. Compared with green leaves, the content of some flavonoids such as quercetin, leucoyanidin, myricetin and their derivatives (pyranodelphinin A, isorhamnetin 3-glucuronide, etc. ) increased significantly in mutant leaves, but the content of chlorophylls and carotenoids decreased significantly. ( 2 ) A total of 4 146 differentially expressed genes (DEGs) were detected, of which 1 711 were up-regulated and 2 435 were down-regulated. ( 3 ) KEGG enrichment analysis showed that SCMs and DEGs were mainly enriched in photosynthesis, porphyrin and chlorophyll metabolism and flavonoid biosynthesis. The research results indicate that inhibition of chlorophyll synthesis, chloroplast developmental abnormalities and promotion of flavonoid synthesis were the main factors driving the golden leaf coloration in the mutant C. gilva. In addition, the genes of the MYB and bHLH families were significantly up-regulated in mutant leaves, confirming these two types of transcription factors were involved in regulating flavonoid biosynthesis. This study provided new molecular insights into the phenomenon of leaf etiolation, and also provided reference for exploring leaf color-related functional genes and breeding of landscape plant.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： The stability of phyllosphere microbial community is closely related to plant health. In order to understand the microecological characteristics of tobacco leaves infected with wildfire disease, community structure and diversity of phyllosphere microbiome in diseased spots and healthy tissues of tobacco leaves with different degrees of disease using high-throughput sequencing technology in this paper. The results showed that the dominant microorganisms in diseased and healthy tissues were Proteobacteria and Ascomycota, and their relative abundance in diseased tissues was significantly higher than that in healthy tissues. The dominant genera were Pseudomonas, Pantoea, Alternaria, Plectosphaerella and Conocybe, and only the relative abundance of Pseudomonas in diseased tissues was significantly higher than that in healthy tissues. The diversity and richness of bacterial communities in diseased spots were higher than those in healthy tissues, and the diversity index showed a trend of decreasing and then increasing with the increase of the degree of disease, and the richness index showed a trend of increasing and then decreasing. The richness and diversity index of fungal communities in diseased spots showed a trend of increasing and then decreasing with the increase of the disease degree, and the diversity and richness of fungal communities in diseased spots of mildly and moderately diseased leaves were higher than that in healthy tissues, but the diversity and richness of fungal communities in heavily diseased tissues were lower than those in healthy tissues. Gene functional information and relative abundance of bacteria in diseased spots and healthy tissues are generally similar, primarily related to metabolism, genetic information processing and environmental information processing. The dominant functional taxa of fungi were plant pathogen, animal pathogen-endophyte-plant pathogen-wood saprotroph, undefined saprotroph, wood saprotroph and plant pathogen-wood saprotroph. The results provide a reference for the understanding of evolutionary pattern of tobacco wildfire disease and characterization of the phyllosphere microbial community.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： Bacterial wilt is a devastating soil-borne disease in tomato (Solanum lycopersicum) production. The pathogenic species are complex and tend to have a variation, while mlo caused by the recessive mutation of MLO genes has a broad-spectrum resistance. The previous study suggested that Slmlo1/6 may be involved in the resistance response to bacterial wilt in tomato. In order to further study the gene function of Slmlo1/6 in tomato bacterial wilt resistance, the genetic mutant plants were created by CRISPR/Cas9 technology and their phenotypes were identified followed. The results were as follows: ( 1 ) First, gRNA sequences of SlMLO1/6 were designed and assembled with the U6 promoters, then U6-gRNA1/6 fragments containing highly effective targets were ligated to CRISPR vector of pBGK via restriction enzyme Bsa I digestion, to construct the two-gene fusion knockout vector of pBGK-SlMLO1/6. The recombinant plasmid of pBGK-SlMLO1/6 was transformed into Escherichia coli DH5α competent cells and positive monoclonal clones were selected via plate cultivation. Using Agrobacterium tumefaciens GV3101 strains-mediated genetic transformation and resistance screening to hygromycin, a total of 9 edited tomato plants were obtained with the PCR and sequencing validation. ( 2 ) Target region sequencing showed that M2 and M8 plants had the 177 bp and 7 bp deletion of SlMLO1, respectively, M7 had the 12 bp deletion of SlMLO6, and M9 had a single base T insertion of SlMLO6. Except for 4 single gene homozygous mutants above, the other mutations were heterozygous. ( 3 ) RT-qPCR showed that compared with the wild type plant, SlMLO1/6 gene expression of the mutants was significantly decreased, especially M2, M7, and M8 plants. ( 4 ) Phenotypic identification indicated that SlMLO1/6 may be tomato bacterial wilt susceptibility genes. In a word, the knockout vector is successfully constructed for broad-spectrum resistance MLO genes and tomato transformation is also achieved. Further, a few homozygous gene edited plants acquire resistance to bacterial wilt to some extent. Amino acid deletion and frameshift mutation may be two crucial reasons for the gene function change of Slmlo1/6 in resistance. The results provide a theoretical basis and genetic engineering materials for the gene function study in resistance to bacterial wilt and disease resistance breeding in tomato.
Subjects: Biology >> Botany submitted time 2024-06-02 Cooperative journals: 《广西植物》
Abstract： Wild plants play a pivotal role in people’s daily lives, providing numerous necessities such as food, medicine, and living tools for survival. Zada County, located in the southwestern part of Ngari Prefecture (མངའ་རི, mngav-ri) , Xizang Autonomous Region of China, bordering India, serves as an important gateway for China’s access to South Asia. This region used to engage in prosperous and lively border trade. Characterized by a plateau sub-frigid arid climate, characterized by low annual average temperature, low oxygen concentration, cold winters, and cool summers. The Zang People here has amassed rich traditional knowledge on the utilization of wild plants in adapting to harsh environments. To comprehensively and systematically investigate, document, and study the traditional knowledge of the Zang People in Zada County on the utilization of wild plants, an ethnobotanical investigation methods were adopted. The research involved interviews with 173 informants, recording 3 639 utilization reports (URs), and conducting quantitative analyses using UV, CV, and CII metrics. The results were as follows: (1) The Zang People in Zada County possesses extensive traditional knowledge on the utilization of wild plants, employing 119 species belonging to 40 families and 83 genera. (2) The utilization categories of wild plants in this area are diverse, with 8 utilization categories, and multiple plants possessing two or more uses simultaneously. (3) The most significant plants in people’s lives are Carum carvi (UV=1.220), Artemisia stracheyi (UV=0.919), Rheum acuminatum (UV=0.890), Cupressus sp. (UV=0.769), and Urtica dioica (UV=0.757). Theses plants are intimately connected to the lives of the local Zang People and are deeply loved by them. (4) The intricate and diverse plateau environment significantly influences the utilization of wild plants in this region. This research not only comprehensively and systematically documents the utilization knowledge and characteristics of wild plants in Zada County, but also provides evidence for the further exploration and rational utilization of local plant resources, contributing to the sustainable development of the region. At the same time, it also helps to promote the inheritance and promotion of traditional knowledge, contributing to the prosperity of local culture. In addition, this research has positive implications for biodiversity conservation, helping to raise public awareness and protection consciousness towards biodiversity, and promoting the balance and harmonious development of the ecosystem.
Subjects: Psychology >> Other Disciplines of Psychology submitted time 2024-06-02
Abstract： The relations of music and language pitch processing have been extensively investigated during these years. Based on the similarity of resource invocation of language and music processing, researchers believe that language and music processing have a common neurophysiological basis and the experience of the two fields can be transferred to each other. The transfer effect of the domain-general acoustical experience of processing has been validated by a large number of studies. However, in addition to domain-general acoustic resources, language processing also involves phonological resources specific to the language domain, such as the categorical perception of tones. Researchers pointed out that experience in language and music can also transfer at the level of domain-specific competence, revealing the transfer of training effect. To date, whether this kind of transfer effect in terms of the categorical perception of tones happens remains unclear. Thus, the current study aimed to investigate the transfer of language and music experience in native Mandarin-speaking musicians in a bi-directional fashion./t/nThe present study used a 2 (group: musicians vs. non-musicians) × 2 (stimulus type: music vs. speech) between-and-within-subjects design. Sixty participants were involved in the current study, including thirty native Mandarin-speaking musicians and thirty native Mandarin-speaking non-musicians. The identification and discrimination tasks in the traditional categorical perception paradigm were adopted, in which the Mandarin T1-T2 tonal continuum from i ˥ to i˧˥ and its musical counterpart were constructed. The identification task required the participants to judge whether the stimulus in the continuum was T1 or T2, and the discrimination task asked participants to decide whether the two stimuli crossing two steps were the same or different./t/nSeen from the identification curve, musicians showed sharper and narrower categorical boundary compared to non-musicians. Both curves of musical stimuli and language stimuli yielded the typical pattern of categorical perception, i.e., the difference in identification rate between the two adjacent stimuli across the boundary was much larger than that between the two adjacent stimuli on both sides of the boundary. In the discrimination task, musicians showed enhanced within-category discrimination accuracy, between-category discrimination accuracy, and discrimination peakedness. Also, the discrimination accuracy of between-category stimuli units could be seen higher than that of within-category stimuli units, which could be interpreted as a typical pattern of categorical perception./t/nThe results showed that music experience could significantly enhance the phonological ability of native Chinese musicians, and their linguistic categorical perception pattern was transferred to musical perception. The conclusion could be drawn that there was a bi-directional transfer effect between the language and music experience of native Mandarin-speaking musicians on the categorical perception of tones, which provides empirical support for the “training transfer effect”. The “shared domain-general view” of language and music processing, i.e., language and music processing share a common neurophysiological basis, could also be validated in terms of the phonological processing ability specific to the language domain.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Other Disciplines of Psychology submitted time 2024-06-02
Abstract： Spatial communication refers to the process of exchanging spatial information among collaborators in spatial cooperation tasks. Previous research has shown that social-spatial cues, environmental cues, and layout cues can influence spatial communication. However, the exploration of their multi-cue impact mechanisms has been insufficient. Additionally, factors like perspective and field cognitive style are worthy of investigation as they may affect spatial communication through their influence on spatial perspective-taking processes and spatial cue extraction. Therefore, this study investigated the effects of consistency in multiple spatial cues, spatial perspective-taking ability, and field cognitive style on spatial communication under different perspectives. Building upon the classical paradigm of spatial communication, this study investigated the multi-cue impact mechanisms by constructing more realistic small-scale indoor virtual environments. Study 1 examined the multi-cue effects on the expression process from the first-person perspective (Experiment 1) and the third-person perspective (Experiment 2). Study 2 explored the multi-cue effects on the reception process from the first-person perspective (Experiment 3) and the third-person perspective (Experiment 4). Study 1 employed a three-factor mixed design, with the core within-subject independent variable being the consistency of spatial cues, derived from social-spatial, environmental, and layout cues. The remaining between-subject variables were spatial perspective-taking ability and field cognitive style. Dependent variables included the ratio of choosing self or other-centric reference frames,duration of language organization and expression. Study 2 utilized a four-factor mixed design, introducing an additional within-subject independent variable, the reference frame of expression statement. Dependent variables comprised accuracy and time taken for understanding expression statements. All data were analyzed using a generalized linear mixed model. Findings revealed that, in the first-person perspective, greater support for spatial reference frames led to a higher likelihood of expresser using them for spatial information, shorter language organization duration, and faster comprehension and higher comprehension correctness of corresponding spatial statements by receiver. Moreover, layout cues had a greater support effect than environmental cues. The higher the spatial perspective-taking ability, the more inclined the expresser is to choose to express spatial language using other-centric reference frame, and the more correct and time-consuming it is for the receiver to understand the spatial utterance. Field-independent expresser showed a more pronounced effect of spatial cue support in choosing reference frames compared to field-dependent expresser. In spatial communication from a third-person perspective, layout cues continued to have a support effect, while environmental cues did not. In both perspectives, receiver comprehended spatial language expressed using receiver-centric frame more quickly. The results indicate that: First, in the first-person spatial communication, there is a presence of spatial cue support effects, with the support effect of layout cues significantly outweighing that of environmental cues; regarding reference frame selection, the consistency of spatial cues has a greater impact on field-independent expresser; the higher the spatial perspective-tasking ability, the more the expresser tends to take on a higher cognitive load and the higher the efficiency of the receiver’s comprehension. Second, the third-person perspective not only diminishes the supportive effects of spatial cues and the influence of spatial perspective-taking ability on spatial communication, but it also complicates the process of representation to varying degrees for the two types of field cognitive style expressers. But the use of a receiver’s frame of reference for linguistic representation is the optimal method for improving comprehension efficiency regardless of perspective.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2024-06-01
Abstract： Body dissatisfaction is common among adolescents, and the use of social networking sites is a risk factor. Conducting a systematic review of the manifestations, pathways, and moderators of how social networking site use affects adolescents’ body dissatisfaction is crucial for preventing and addressing this issue. The use of social networking sites can impact adolescents’ body dissatisfaction in several ways. This influence occurs through three main pathways: comparison and internalization of the ideal body, self-objectification and body surveillance, and appearance self-schema and appearance self-discrepancy. Furthermore, this effect is moderated by personality factors, including the Big Five personality traits, narcissism and perfectionism; self-cognitive factors, such as self-compassion and self-concept clarity; and media-cognitive factors, including social media literacy and appearance-related social media consciousness. Future research should focus on exploring the relationship between social networking site use and body dissatisfaction in China, expanding the scope to include various aspects such as research subjects, methods, and content, and further validating and simplifying the theoretical framework. This will help develop more effective online intervention programs to address adolescents’ body dissatisfaction.
Subjects: Psychology >> Management Psychology submitted time 2024-06-01
Abstract： Against the background of carbon peak and carbon neutrality, enterprises are facing severe pressure related to green development. Green creativity, which refers to the development of new ideas about green products, green services, green processes, or green practices that are judged to be original, novel, and useful, is the key way to realize the low-carbon development of enterprises. However, there is still a lack of systematic understanding of the stimulating factors and mechanisms of green creativity. Individual factors (motivation, cognition, emotion, attitude, ability, and behavior) and contextual factors (leadership, vision and strategy, management practice, and comprehensive strength) constitute the antecedent variables that influence employee green creativity. On this basis, the functions of the above factors can be divided into two categories: (1) the situation → individual driving path model, where self-determination theory, social cognition theory, affective events theory, and attitude change theory are the patterns of explanation perspectives; and (2) the interaction model of individual and situation, in which competency activation model and motivated information processing theory are the patterns of explanation perspectives. Future research can start from concept definition, traditional influence, team level, dynamic attributes, persistence and the price that needs to be paid to enrich the green creativity theory system.
Subjects: Biology >> Biological Evolution submitted time 2024-05-31
Abstract： Within the dicynodont genus Turfanodon, there are two recognized species, T.bogdaensis and T. jiufengensis. Both species are known by relatively complete cranial materials, but the mandibles and most postcranial bones have been described only for T. jiufengensis. This paper reports new dicynodont specimens from Turpan, Xinjiang, referring them to T. bogdaensis. They can clearly be differentiated from T. jiufengensis by the flatter lateral surface of the snout region, a prominent swelling on the lateral dentary shelf, and the rounded femoral head. The diagnosis of Turfanodon is revised. The combination of a flat circumorbital rim, posterior portion of anterior pterygoid rami with converging ventral ridges, and a possible autapomorphy, a deep notch on scapula forming procoracoid foramen, are confirmed. It also differentiated from all dicynodonts other than Myosaurus, Kembawacela and Lystrosaurus by having accessory ridges lateral to the median palatal ridge.
Subjects: Geosciences >> Geography submitted time 2024-05-31 Cooperative journals: 《干旱区地理》
Abstract：公园绿地和城市功能空间是城市空间的组成部分，研究公园绿地与城市功能空间耦合协调关系及其影响因素，对优化公园绿地合理布局，促进城市功能空间协同发展具有重要意义。以乌鲁木齐市中心城区为研究对象，运用核密度分析、标准差椭圆、耦合协调度模型和地理探测器等方法，在分析公园绿地与城市功能空间分布格局的基础之上，进一步探析二者空间的耦合协调关系及其影响因素。结果表明：（1）公园绿地与城市各功能空间形成了内密外疏、圈层式递减、向西北方向扩展的空间聚集特征。（2）公园绿地与城市各功能空间的分布重心均与城市中心发生了一定程度的偏离。公园绿地、居住空间、交通运输空间、公共服务空间呈西北—东南方向分布。休闲娱乐空间、商业空间呈东北—西南方向分布。（3）公园绿地与城市各功能空间耦合协调的主导类型为中度失调型，耦合协调度呈现出“中部高、东西两侧和南北两翼低”的空间分异特征。其中，人口因素、交通条件是影响公园绿地与城市各功能空间耦合协调度的主要因素，社会经济则是次要因素。
Subjects: Geosciences >> Geography submitted time 2024-05-31 Cooperative journals: 《干旱区地理》
Abstract：河西走廊是我国人类活动最密集的干旱地区，明晰河西走廊国土空间格局演变特征及驱动机制有助于缓解地区国土空间开发保护矛盾。采用空间转换矩阵、景观格局指数、最优参数地理探测器等方法，从“量变”“形变”2个维度定量研究2000—2020年河西走廊国土空间格局时空演变特征及其驱动力。结果表明：（1）河西走廊城镇空间、农业空间以及其他生态空间持续扩张，绿色生态空间剧烈减少了2758.87 km2，国土空间开发程度不断提高的同时生态保护效果尚不显著。（2）国土空间主导转换类型是生态空间内部“荒漠-绿地”交互演变，不同主体功能区中交叉转换规模差异显著。伴随国土空间交叉转换，其景观格局呈现出破碎化、分散化、复杂化演变特征。（3）河西走廊国土空间格局演变受到多维度影响因子驱动，其中“量变”过程受到的驱动作用包括国家政策指引、自然地理支撑、交通区位约束和社会经济催化，而“形变”则是以自然地理为基础，在交通区位和社会经济的影响下进一步发生演化。
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