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关键词： 建筑行业建设领域   现代风景园林设计   生态理念   可持续发展   应用范畴   研究探讨  

摘要： 随着我国经济社会和科学技术的不断发展和进步,建设领域中的现代风景园林建设项目也在不断的发展,特别是现代风景园林建设在设计方面对生态理念的应用,积极响应了国家政府可持续发展的战略目标,既提高了人们生活的环境质量,又促进了经济行为与自然生态环境之间的和谐共处,本文旨在通过对现代风景园林建设项目在设计方面对生态理念应用的研究和探讨,为促进该行业的长远发展提供一些建议。

关键词： Operadic categories   2-Segal spaces   Decalage  

摘要： Batanin and Markl's operadic categories are categories in which each map is endowed with a finite collection of "abstract fibres"-also objects of the same category-subject to suitable axioms. We give a reconstruction of the data and axioms of operadic categories in terms of the decalage comonad Don small categories. A simple case involves unaryoperadic categories-ones wherein each map has exactly one abstract fibre-which are exhibited as categories which are, first of all, coalgebras for the comonad D, and, furthermore, algebras for the monad (D) over tilde induced on Cat(D) by the forgetful-cofree adjunction. A similar description is found for general operadic categories arising out of a corresponding analysis that starts from a "modified decalage" comonad D-m on the arrow category Cat(2). (C) 2020 Elsevier Inc. All rights reserved.

关键词： charge separation   electron transfer   photochromism   photogenerated radicals  

摘要： The intermarriage of neutral and tripodal imidazole ligand, tris(4-(1H-imidazol-1-yl)phenyl)amine (TIPA), with zinc phosphite yields two hybrid phosphites, [Zn-2(HPO3)(2)(TIPA)].2 H2O (1) and [Zn-3(HPO3)(3)(TIPA)].6 H2O (2). Compound 1 has a hybrid sheet with neutral zinc-phosphite chains as supramolecular building blocks (SBBs), whereas 2 exhibits a 3D hybrid architecture with other neutral zincophosphite chains as supramolecular building blocks. The structural discrepancy between 1 and 2 is mainly due to the distinct linkage modes between organic TIPA ligands and inorganic zincophosphite chains. Interestingly, compounds 1 and 2 feature fast photochromism in response to UV light irradiation under ambient conditions. The discrepancy of photochromic performance between 1 and 2 is mainly due to the different geometrical configuration of the TIPA ligand. Different to majority of reported hybrid photochromic compounds driven by photochromic active units, the photochromism in 1 and 2 is derived from the electron transfer (ET) between phosphite and non-photochromic triimidazole-derivative ligand TIPA. Compared with the widely explored nonphotochromic polypyridine-derivative as electron acceptors (EAs), our work provides a new EA model for the design of hybrid photochromic materials based on the ligand-to-ligand ET mechanism. A multiple anti-counterfeiting application based on 1 and 2 was investigated.

关键词： Sediment N Removal   C/N   Nitrification   Denitrification   River  

摘要： As an intersection that links terrestrial and aquatic ecosystems, river ecosystems are hotspots for nitrogen (N) removal. Nitrification and denitrification processes have been recognized as the primary mechanisms behind permanent N removal in rivers, which can be influenced by a variety of environmental factors. However, in rivers characterized by low carbon to nitrogen (C/N) ratio, the interaction among environmental factors and their effects on the sediment N-removal rates remain to be elucidated. In this study, we conducted six surveys in the Chuanfang River (an urban low C/N ratio river flowing into the Dianchi Lake) to investigate the effects of four categories of environmental variables on sediment N-removal rates (water physicochemical properties, water nutrients, sediment characteristics, and submerged vegetation) and their respective contribution to sediment N-removal rates. The results showed that sediment N-removal rates increased along the river reach, accompanied by a gradual improvement in water quality, sediment fertility, and submerged vegetation. Furthermore, comprehensive results of multiple analysis indicated positive effects of water physicochemical properties (e.g. dissolved oxygen, pH, temperature, etc.), sediment characteristics (e.g. sediment C, N, etc.), and submerged vegetation (e.g. tissue C, N, etc.) on the N-removal rates but emphasized the restriction of water nutrients (e.g. water N, etc.). In addition, the significant negative correlation between nitrification and denitrification in path model signified the decoupled nitrification-denitrification in the Chuanfang River. This study suggested that river ecosystems that received low C/N water had a great N-removal capacity, which could be further enhanced by the improvement of water quality, sediment fertility, and submerged vegetation.

关键词： Hall's criterion for nilpotence   Semi-abelian  

摘要： In this paper, we focus on Hall's criterion for nilpotence in semi-abelian categories, and we improve the bound of the main theorem of [2, Theorem 3.4] (see Main Theorem). And this bound is the best possible. (C) 2020 Elsevier Inc. All rights reserved.

关键词： level of evidence   NCCN   NCCN guidelines  

摘要： National Comprehensive Cancer Network (NCCN) guidelines are the most comprehensive and widely used standard for clinical care, financial reimbursements and quality improvement initiatives in oncology. We studied the distribution of categories of evidence and consensus (EC) in the guidelines for the common cancers in the United States. We evaluated the EC categories in staging, therapy and surveillance recommendations in 2019 guidelines and compared them with the same in 2010. The latest 2019 version of NCCN guidelines were obtained. The definitions for various categories of EC used were, Category 1 (high level evidence, uniform consensus), Category 2A (lower level of evidence [LOE], uniform consensus), Category 2B (lower LOE, no uniform consensus but with no major disagreement) and Category 3 (any LOE, major disagreement). We compared our results with previously published results from 2010 guidelines. Total number of recommendations increased by 77% from 1023 (2010) to 1818 (2019). Of the 1818 recommendations, Category 1, 2A, 2B and 3 EC were 7%, 87%, 6% and 0%, respectively, while in 2010 they were 6%, 83%, 10% and 1%. Breast (30%), lung (10%) and kidney (10%) cancer had the highest proportions of Category 1 therapeutic recommendations in their respective guidelines. No Category 1 recommendations were found in screening or surveillance guidelines or in pancreatic and uterine cancer guidelines. Recommendations in 2019 NCCN guidelines are largely Category 2A (lower levels of evidence, uniform expert opinion), unchanged from the previous study in 2010.

关键词： Depression   Phq-9   Diagnostic categories   Latent classes   Extra-linearity  

摘要： Background: Dimensions are recommended as replacements for diagnostic categories of depression, but clinicians continue to use categories. Categories are appropriate if major, underlying changes in symptom structure occur above a clinical cut-off on a depression continuum. Methods: Cross-sectional surveys of Chinese undergraduates (n = 39,446) 2014-2018 measured self-reported depressive symptoms, associated psychopathology and etiological risk factors using standardised instruments. We created a continuum using PHQ-9 scores and tested linear and extra-linear contrasts in associated psychopathology, and etiology. We carried out latent class analyses (LCA). Results: Most symptoms showed linear increase, but depressed mood, anhedonia, and suicidal ideation showed marked increase at the severe end of the continuum. There was extra-linear increase in associated psychotic symptoms, other psychopathology, age, low family income, chronic pain and physical illness, childhood physical and sexual abuse, and neglect. Four LCs corresponding to Melancholic, Severe melancholic, Non-melancholic, and Mild depression were confirmed, but only above a clinical cut-off along the continuum. Etiological risk factors did not differentiate between classes but showed overall dramatic increase in impact above threshold of clinical severity. Limitations: Only one self-report instrument was used (PHQ-9) to measure depression and diagnoses were not validated by clinical interviews. Conclusions: Categories are necessary to describe the dramatic changes in underlying structure and symptom associations above a clinical threshold of severity. These result from extra-linear impact of etiological risk factors at the severe end of the depression continuum. Although the study confirmed melancholic and non-melancholic subtypes, further investigation should investigate etiological factors that determine this subdivision.

关键词： 复合词   概念整合理论   认知   意义的建构   范畴  

摘要： 过去对英语复合词的研究多从其结构和形式的角度出发,从认知角度对其语义问题进行系统的研究不多,且常忽略语言使用者的认知因素在意义建构过程中的作用。本文通过复合词构词模式梳理,从认知角度运用整体—部分关系、新基本层次范畴及概念整合理论对英语复合词的语义建构进行分析,并在概念及概念之间相互作用的心智层面阐释其意义生成机理。

关键词： Category O   Bordered Floer homology   Quantum super algebras   Categorification   gl(1 vertical bar 1)  

摘要： We show that Ozsvath-Szabo's bordered algebra used to efficiently compute knot Floer homology is a graded flat deformation of the regular block of a q-presentable quotient of parabolic category O. We identify the endomorphism algebra of a minimal projective generator for this block with an explicit quotient of the Ozsvath-Szabo algebra using Sartori's diagrammatic formulation of the endomorphism algebra. Both of these algebras give rise to categorifications of tensor products of the vector representation V-circle times n for U-q(gl(1 vertical bar 1)). Our isomorphism allows us to transport a number of constructions between these two algebras, leading to a new (fully) diagrammatic reinterpretation of Sartori's algebra, new modules over Ozsvath-Szabo's algebra lifting various bases of V-circle times n, and bimodules over Ozsvath-Szabo's algebra categorifying the action of the quantum group element F and its dual on V (circle times n). (c) 2020 Elsevier Inc. All rights reserved.

关键词： Hopf Category   Frobenius category   Enriched category   Monoidal category   Integral space   Hopf module  

摘要： The aim of this paper is to extend the classical Larson Sweedler theorem, namely that a k-bialgebra has a nonsingular integral (and in particular is Frobenius) if and only if it is a finite dimensional Hopf algebra, to the 'many object' setting of Hopf categories. To this end, we provide new characterizations of Frobenius V-categories and we develop the integral theory for Hopf V-categories. Our results apply to Hopf algebras in any braided monoidal category as a special case, and also relate to Turaev's Hopf group algebras and particular cases of weak and multiplier Hopf algebras. (c) 2020 Elsevier Inc. All rights reserved.