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西康省康属新闻事业探析

四川大学学报(哲学社会科学版) 2025年第1期 173-184,237,238页

作者：王绿萍四川大学文学与新闻学院成都610064

西康省成立于1939年1月1日,省会康定。全省分为康属、宁属、雅属三个区域。三属的自然条件、人文环境各不相同,新闻事业各具特色。康属即今四川省甘孜藏族自治州,全境处于青藏高原,居民主要是藏族,信奉喇嘛教,宗教氛围浓厚,居住分散,生... 详细信息

西康省成立于1939年1月1日,省会康定。全省分为康属、宁属、雅属三个区域。三属的自然条件、人文环境各不相同,新闻事业各具特色。康属即今四川省甘孜藏族自治州,全境处于青藏高原,居民主要是藏族,信奉喇嘛教,宗教氛围浓厚,居住分散,生活贫困而封闭。属内实行政教合一的管理体制,喇嘛、头人是当地的统治者。在这样的社会里,人与人缺乏交流沟通,主客观都不具备产生新闻事业的条件。但康属在建省前后到1949年,却创办了55种报刊,发展出具有相当规模的新闻事业队伍和读者群,突显出其新闻事业产生、发展的个性。

关键词：西康省康属新闻事业新闻史

Are urbanization, biotic and social factors associated with the song frequency and song entropy attributes of three urban syntopic passerines?

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Avian Research 2025年第01期 96-109页

作者： Xhareni Díaz-lezama Alejandro Ariel Ríos-Chelén Jorge Castellanos-Albores Paula l.Enríquez Programa de Posgrado en Ciencias en Recursos Naturales y Desarrollo Rural El Colegio de la Frontera Sur.Carr.Panamericana y Periférico Sur s/n Barrio Ma.Auxiliadora Centro Tlaxcala de Biología de la Conducta Universidad Autónoma de Tlaxcala Departamento Conservación de la Biodiversidad El Colegio de la Frontera Sur Carr.Panamericana y Periférico Sur s/n Barrio Ma.Auxiliadora

Urban environments have challenging characteristics for bird acoustic communication. High levels of anthropogenic noise, as well as vegetation structure(e.g., in urban parks), can potentially affect the song frequency characteristics of several bird species. An additional factor such as the abundance of conspecific and heterospecific vocalizing birds may play an important role in determining the structure of bird songs. In this study, we analyzed whether noise levels, vegetation percentage, and abundance of conspecifics and heterospecifics influence the song characteristics of three syntopic songbird species: House Finch(Haemorhous mexicanus), Rufouscollared Sparrow(Zonotrichia capensis), and House Sparrow(Passer domesticus) living in urban sites. We recorded songs of these species and measured the peak frequency and entropy of their songs at 14 sites in the city of San Cristobal de las Casas, Chiapas, Mexico. We found that the song peak frequency of House Finch and House Sparrow's songs was negatively related to the vegetation. The peak frequency of neither of the three species correlated with the average noise level. However, the abundances of conspecific and heterospecific were related to the peak frequency of the three species' songs. The entropy of the House Finch and House Sparrow songs was positively and negatively related, respectively, to noise levels. House Sparrow song entropy was negatively related to the percentage of vegetation. Song entropy of House Finches was negatively associated to conspecific and House Sparrow abundance. Song entropy of Rufous-collared Sparrows was positively related to conspecific abundance. In conclusion, the song peak frequency and song entropy of the three songbird species were differentially related to urban noise, vegetation, and conspecific and heterospecific abundance, suggesting these factors influence bird song characteristics.

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Polyethylene glycol has immunoprotective effects on sciatic allografts, but behavioral recovery and graft tolerance require neurorrhaphy and axonal fusion

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Neural Regeneration Research 2025年第4期20卷 1192-1206页

作者： Tyler A.Smith liwen Zhou Cameron l.Ghergherehchi Michelle Mikesh Cathy Z.Yang Haley O.Tucker JuliAnne Allgood Jared S.Bushman George D.Bittner Department of Molecular Biosciences University of Texas at AustinAustinTXUSA Department of Neuroscience University of Texas at AustinAustinTXUSA Division of Pharmaceutical Sciences University of WyomingLaramieWYUSA

Behavioral recovery using(viable)peripheral nerve allografts to repair ablation-type(segmental-loss)peripheral nerve injuries is delayed or poor due to slow and inaccurate axonal ***,such peripheral nerve allografts undergo immunological rejection by the host immune *** contrast,peripheral nerve injuries repaired by polyethylene glycol fusion of peripheral nerve allografts exhibit excellent behavioral recovery within weeks,reduced immune responses,and many axons do not undergo Wallerian *** relative contribution of neurorrhaphy and polyethylene glycol-fusion of axons versus the effects of polyethylene glycol per se was unknown prior to this *** hypothesized that polyethylene glycol might have some immune-protective effects,but polyethylene glycol-fusion was necessary to prevent Wallerian degeneration and functional/behavioral *** examined how polyethylene glycol solutions per se affect functional and behavioral recovery and peripheral nerve allograft morphological and immunological responses in the absence of polyethylene glycol-induced axonal ***-type sciatic nerve injuries in outbred Sprague–Dawley rats were repaired according to a modified protocol using the same solutions as polyethylene glycol-fused peripheral nerve allografts,but peripheral nerve allografts were loose-sutured(loose-sutured polyethylene glycol)with an intentional gap of 1–2 mm to prevent fusion by polyethylene glycol of peripheral nerve allograft axons with host *** to negative control peripheral nerve allografts not treated by polyethylene glycol and in contrast to polyethylene glycol-fused peripheral nerve allografts,animals with loose-sutured polyethylene glycol peripheral nerve allografts exhibited Wallerian degeneration for all axons and myelin degeneration by 7 days postoperatively and did not recover sciatic-mediated behavioral functions by 42 days *** morphological signs of rejection,such as col

关键词： allograft rejection axotomy macrophage myelin nerve repair polyethylene glycol(PEG) sciatic nerve T cell transplantation Wallerian degeneration

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Physico-Mechanical Characterisation of an Earth Bar and Bamboo Fiber Composite Material for Road Construction

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Open Journal of Composite Materials 2025年第1期15卷 31-43页

作者： Yvette Tankpinou Kiki Koffi Judicaël Agbelele Fernando Kpomahou Georgette Monleme Processes and Technological Innovation laboratory (laPIT) National University of Science Technology Engineering and Mathematics (UNSTIM) Lokossa Benin Multidisciplinary Research laboratory for Technical Education (lARPET) National University of Technological Sciences Engineering and Mathematics Lokossa Benin Civil Engineering Test and Study laboratory (l2EGC) National University of Technological Sciences Engineering and Mathematics Abomey Benin

Road construction in Africa is faced with a shortage of quality materials, leading to delays and increased costs. Traditional materials, such as clay soils of the bar soil type, have inadequate properties for pavement sub-base layers, particularly in terms of bearing capacity. This study explores a composite material combining bar soil and bamboo fibers to improve the mechanical performance of bar soil, offering a sustainable and cost-effective solution. The Tori-Bossito bar soil was characterised by particle size analysis, Atterberg limits, Proctor compaction tests and the California Bearing Ratio (CBR). The results show that this material is a class A2 sandy-clay soil with a CBR of 18, which is insufficient for foundation layers requiring a CBR of over 30. To improve its performance, Sèmè-Kpodji bamboo fibers, 30 to 100 microns in diameter and 3 to 5 cm long, were incorporated at rates of 0.9% to 2.7%. The optimum mix, with 2.4% fiber, has a CBR of 35, a dry density of 1.92 t/m3 and a moisture content of 12.4%. This reinforced material is suitable as a base course for low-traffic roadways.

关键词： Bamboo Fibers Bar Soil Sub-Base low Traffic Mechanical Properties

The Potential of Wacapou (Vouacapoua americana) Extracts to Develop New Biobased Protective Solutions for low-Durability Wood Species

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Journal of Renewable Materials 2025年第1期13卷 79-100页

作者： Emma Kieny Kévin Candelier louis Milhe Yannick Estevez Cyrielle Sophie Romain lehnebach Jérémie Damay Daniela Florez Emeline Houël Marie-France Thévenon Julie Bossu CIRAD Ecologie de Forêts de Guyane(EcoFoG)AgroparisTechCNRSINRAEUniversitéde GuyaneKourou97379France CIRAD UPR BioWooEBMontpellierF-34398France BioWooEB Universitéde MontpellierCIRADMontpellierF-34398France CNRS Ecologie de Forêts de Guyane(EcoFoG)AgroparisTechCIRADINRAEUniversitéde GuyaneKourouGuyane Française97379France Sorbonne Université CNRSLaboratoire de Biodiversitéet Biotechnologies MicrobiennesLBBMObservatoire OcéanologiqueBanyuls-sur-Mer66650France

The valorization of Amazonian wood residues into active chemical compounds could be an eco-friendly,cost-effective and valuable way to develop wood preservative formulations to enhance the decay and termite resistance of low-durable wood ***(Vouacapoua americana.,Fabaceae)is a well-known Guianese wood spe-cies commonly used in local wood construction due to its outstanding natural durability,which results from the presence of a large panel of extractives *** addition,its industrial processing generates large amounts of *** residues were extracted by maceration using four different solvents(water/ethanol,ethyl acetate,hexane and dichloromethane/methanol),separately and *** yield of each extractive fraction was determined,and their chemical compositions were analyzed by liquid Chromatography-Mass Spectrometry(lC-MS).Ethyl acetate led to the highest extraction yield,and the active compounds were identiﬁed in the obtained extractive *** this sense,the fungicidal and termite-repellent properties of these extractives were then tested using a screening laboratory(with temperate and tropical microorganisms),according to the solution concentration(1%,2.5%,5%,8%and 10%).Finally,Virola michelii Heckel wood samples(low durable species)were impregnated with the 8%concentration *** impregnated wood samples were then exposed to a soil bed *** results highlighted that the nature of the solvent used during wood maceration affects the con-tent of the obtained extractive ***-Performance liquid Chromatography–High-Resolution Mass Spectrometry(UHPlC-HRMS)analyses showed the inﬂuence of extraction parameters on the nature of the extracted *** extracts(from ethyl acetate maceration)showed good anti-fungal and anti-termite ***,the concentration in extractives had an impact on the anti-termite activity level for Reti-culitermesﬂavipes and Cryptotermes *** based on W

关键词： Anti-fungal and anti-termite activities conferred durability extractives French Guiana impregnation guianese species wood by-products

Congenital anomalies of coronary artery misdiagnosed as coronary dilatations in Kawasaki disease:A clinical predicament

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World Journal of Clinical Pediatrics 2025年第1期14卷 93-100页

作者： Rakesh Kumar Pilania Pallavi l Nadig Suprit Basu Reva Tyagi Abarna Thangaraj Ridhima Aggarwal Munish Arora Arun Sharma Surjit Singh Manphool Singhal Pediatric Allergy Immunology Unit Department of PediatricsAdvanced Pediatrics CenterPost Graduate Institute of Medical Education and ResearchChandigarh 160012ChandīgarhIndia Department of Radiodiagnosis and Imaging Postgraduate Institute of Medical Education and ResearchChandigarh 160012ChandīgarhIndia

BACKGROUND 2D-echocardiography(2DE)has been the primary imaging modality in children with Kawasaki disease(KD)to assess coronary *** To report the presence and implications of incidental congenital coronary artery anomalies that had been misinterpreted as coronary artery abnormalities(CAAs)on *** Records of children diagnosed with KD,who underwent computed tomography coronary angiography(CTCA)at our center between 2013-2023 were *** identified 3 children with congenital coronary artery anomalies in this cohort on *** of CTCA and 2DE were compared in these 3 *** Of the 241 patients with KD who underwent CTCA,3(1.24%)had congenital coronary artery anomalies on CTCA detected *** all 3 patients,baseline 2DE had identified *** was then performed for detailed evaluation as per our unit ***(11-year-boy)amongst the 3 patients had complete KD,while the other two(3.3-year-boy;4-month-girl)had incomplete *** revealed separate origins of left anterior descending artery and left circumflex from left sinus[misinterpreted as dilated left main coronary artery(lCA)on 2DE],single coronary artery(interpreted as dilated lCA on 2DE)and dilated right coronary artery on 2DE in case of anomalous origin of lCA from the main pulmonary *** latter one was subsequently operated *** CTCA is essential for detailed assessment of coronary arteries in children with KD especially in cases where there is suspicion of congenital coronary artery *** solely on 2DE may not be sufficient in such cases,and findings from CTCA can significantly impact therapeutic decision-making.

关键词： Coronary artery abnormalities Congenital coronary artery anomalies Computed tomography coronary angiography Kawasaki disease 2-dimensional echocardiography

湘西花垣李梅铅锌矿田构造沉积岩相与断裂控矿特征

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现代地质 2025年第1期39卷 146-157页

作者：薛长军吕古贤吕承训高伟利青海省有色第二地质勘查院青海西宁810000 中国地质科学院地质力学研究所北京100081 中国地质大学(北京)地球科学与资源学院北京100083 中国地质调查局发展研究中心北京100037 内蒙古自然博物馆内蒙古呼和浩特市010010

李梅铅锌矿床是我国重要的超大型铅锌矿床之一,具有较高的经济价值和科研意义。通过对该区域控矿构造特征、地层序列及沉积构造特征的系统研究,发现花垣断裂在寒武纪时期形成的同沉积断层对矿床的发育起到了关键作用。寒武系清虚洞组的... 详细信息

李梅铅锌矿床是我国重要的超大型铅锌矿床之一,具有较高的经济价值和科研意义。通过对该区域控矿构造特征、地层序列及沉积构造特征的系统研究,发现花垣断裂在寒武纪时期形成的同沉积断层对矿床的发育起到了关键作用。寒武系清虚洞组的含矿沉积岩相被归类为枢纽带碳酸盐岩体系,其中主要岩相为藻礁灰岩,相应的微相包括台地边缘滩相与藻礁相。研究表明,藻灰岩中的裂隙构造发育明显,矿化作用较强,尤其在网状小构造高度发育的区域,通常形成富集的铅锌矿体。综合认为,矿床的成矿过程受到构造因素及藻礁相、相邻浅滩相的严格控制。研究成果为区域铅锌矿资源的勘探与开发提供了一定的科学依据。

关键词：花垣断裂同沉积断层构造-沉积岩相李梅矿区

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Temporal and spatial comparisons of angiosperm diversity between eastern Asia and North America

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National Science Review 2022年第6期9卷 38-42页

作者： Haihua Hu Jianfei Ye Bing liu lingfeng Mao Stephen A.Smith Russell l.barrett Pamela S.Soltis Douglas E.Soltis Zhiduan Chen limin lu State Key laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Sino-Africa Joint Research Center Chinese Academy of Sciences Beijing Botanical Garden Institute of BotanyChinese Academy of Sciences Co-Innovation Center for Sustainable Forestry in Southern China College of Biology and the Environment Nanjing Forestry University Department of Ecology and Evolutionary Biology University of Michigan National Herbarium of New South Wales Royal Botanic Gardens and Domain Trust Florida Museum of Natural History University of Florida Department of Biology University of Florida

Comparative approaches that examine floras with similar environments, but different diversity patterns, provide good opportunities to elucidate how uneven distributions of biodiversity were assembled. Eastern Asia(EA) and North America north of Mexico(NA; see definitions of EA and NA in Fig. S1 A) share similar geographical environments with comparable latitude, land area and climate,

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A comprehensive evaluation of flowering plant diversity and conservation priority for national park planning in China

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Fundamental Research 2023年第6期3卷 939-950页

作者： limin lu lina Zhao Haihua Hu Bing liu Yuchang Yang Yichen You Danxiao Peng Russell l.barrett Zhiduan Chen State Key laboratory of Plant Diversity and Specialty Crops Institute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China Sino-Africa Joint Research Center Chinese Academy of SciencesWuhan 430074China National Herbarium of New South Wales Royal Botanic Gardens and Domain TrustSydneyLocked Bag 6002Mount Annan2567New South WalesAustralia

Establishment of a national park protection system in China,including the latest target proposed to protect at least 30%of the land area,calls for a comprehensive exploration of conservation priorities incorporating multiple diversity *** herein evaluate the spatial distribution of Chinese flowering plants from the perspectives of richness,uniqueness,vulnerability,and evolutionary history,by integrating three mega-phylogenies and comprehensive distribution *** detect significantly high consistency among hotspots of different diversity measures for Chinese flowering plants,suggesting that multiple facets of evolutionary diversity are concentrically distributed in *** legal protection to these areas is expected to maximize positive conservation *** propose two integrative diversity indices by incorporating three richness-based and three phylogeny-based measures,*** methods identify areas with high species richness,but the integrative phylogeny-based index also locates key areas with ancient and unique evolutionary histories(e.g.,Ailao-Wuliang Mts,Dabie Mts,Hainan rainforest,Karst area of Yunnan-Guizhou-Guangxi,Nanling Mts,and southeast coastal regions).Of all the diversity indices explored,phylogenetic endemism maximizes the incidental protection of other indices in most cases,emphasizing its significance for conservation ***,42 priority areas are identified by combining the 5%-criterion hotspots of two integrative indices and the minimum area to protect all threatened species *** priorities cover only 13.3%of China's land area,but host 97.1%of species richness(23,394/24,095),96.5%of endemic species(11,841/12,274),100%of threatened species(2,613/2,613),and 99.3%of phylogenetic diversity for flowering plants involved in this *** frameworks provide a solid scientific basis for national park planning in China.

关键词： Biodiversity hotspots Conservation priorities Flowering plants Mega-phylogeny Phylogenetic diversity