检索结果-南通市图书馆

What is attractive rural landscape?Differences in the social and expert assessment of the changes in the rural landscape of the Carpathian region in Poland with regard to the need of its protection

引用

Journal of Mountain Science 2023年第2期20卷 501-515页

作者： Agata GAJDEK barbara KRUPA Anna NOWAK Department of Landscape Architecture Institute of Agricultural SciencesEnvironmental Protection and DevelopmentCollege of Natural SciencesUniversity of Rzeszowul.Ćwiklińskiej 2PL-35-601 RzeszówPoland

Contemporary villages of the mountain region are subject to uncontrolled structural and spatial transformations,which cause deformation of centuries-old spatial systems of high cultural and natural *** aim of the study is to confront the opinions of the inhabitants and experts regarding the condition of the cultural landscape of the villages in south-eastern *** area belongs to the Carpathian region of Central *** historical and economic conditions of the studied region,related to the functioning in the post-war period,and then its breakdown and the development of the free market economy,constitute an interesting background for the proposed *** communities still remembering the period of difficulties related to the period of systemic transformations,are currently experiencing a relative prosperity,many difficulties related to the period of systemic transformations,are currently experiencing a relative prosperity,which is also expressed in a completely new,previously unknown way of managing the *** implemented in villages are associated by the inhabitants with the improvement of the standards and quality of *** assess them rather *** expert assessment of these landscape transformations indicates their negative dimension and the risk of losing timeless *** discrepancy in the assessment of experts and local residents creates difficulties in the protection of the rural ***,high-quality visual landscape features among rural residents is necessary from the point of view of its multi-faceted and effective *** initiatives and actions in the field of industry policy should play a significant role in this respect by consolidating the images of a harmonious landscape in the public awareness.

关键词： Polish village Landscape attractiveness Cultural landscape Spatial systems

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Circadian regulation of Limulus visual functions:A role for octopamine and cAMP

引用

Current Zoology 2010年第5期56卷 518-536页

作者： Jasbir S.DALAL barbara-Anne BATTELLE Whitney Laboratory for Marine Bioscience and the Departments of Neuroscience and Biology University of Florida Department of Internal Medicine and Division of Human Nutrition and Metabolic Diseases University of Texas Southwestern Medical Center

The purpose of this contribution is to review our current understanding of the source and biochemistry of the circadian efferent input to the eyes of the American horseshoe crab Limuluspolyphemus and the impact of this input on the structure, physiology and biochemistry of Limulus eyes. Special emphasis is given to the role of the biogenic amine octopamine and bio- chemical cascades it activates in the eyes. In addition to reviewing published data, we present new data showing that octopamine elevates cAMP levels in Limulus lateral eyes, and we partially characterize the pharmacology of the receptors involved in this response. We also present new data showing that octopamine regulates gene expression in Limulus lateral eyes by activating a cAMP cascade

关键词： Horseshoe crab Circadian rhythms Oetopamine Photoreceptors Substance P Arrestin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Meeting guidelines for physical activity,muscle strength,and sleep lowers mortality risk:Commentary on:“Associations between aerobic and musclestrengthening physical activity,sleep duration,and risk of all-cause mortality:A prospective cohort study of 282,473 ***”

引用

Journal of Sport and Health Science 2023年第1期12卷 3-4页

作者： barbara E.Ainsworth School of Exercise and Health Shanghai University of SportShanghai 200438China

In 2022,Duncan et al.1 published results from an investigation of the combined effects of moderate-to-vigorous aerobic exercise(AER),muscle-strengthening activities(MSA),and sleep durations on the risks for all-cause mortality in 282,473 *** aged 18-84 *** authors aggregated data from the 2004 to 2014 *** Health Interview Survey(NHIS)2 and followed respondents for 5.4 years to ascertain risks for all-cause *** obtained mortality data from the *** Death Index.

关键词： mortality sleep

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Localization of rare earth ions in an inhomogeneous magnetic field toward their magnetic separation

引用

Journal of Rare Earths 2022年第10期40卷 1598-1605页

作者： barbara Fritzsche Zhe Lei Xuegeng Yang Kerstin Eckert TU Dresden Institute of Process Engineering and Environmental Technology01062DresdenGermany Helmholtz-Zentrum Dresden-Rossendorf(HZDR) Institute of Fluid DynamicsBautzner Landstrasse 40001328DresdenGermany

Efficient extraction and recycling methods are an important issue for rare earth elements(REE). The significant differences in their magnetic moments make magnetic separation a promising step. Although the magnetic field gradient manipulation of ions seemed to be impossible, the robust enrichment of some paramagnetic RE ions was found in the vicinity of the magnet. The studies in recent years resolved the physical paradox of why, despite the Brownian motion of the ions, there is a reproducible enrichment of RE ions in magnetic field gradients. The existence of trigger process and energy barrier was ***, these studies usually used only high paramagnetic ions, e.g., Dy(Ⅲ) or Ho(Ⅲ). This work verifies the theory of the possible magnetic separation for 8 different rare earth ions, respectively. For this purpose, concentration distribution in rare earth chloride solutions were measured using a MachZehnder interferometer. The magnetic field was assured by a Halbach configuration to enhance the effect. The results show the classification of RE solutions into 2 classes: Class I contains the REs with low magnetic moment, whereas Class II includes the REs of high magnetic moment. Only the latter group shows the enrichment of ions in the vicinity of the magnet which encourages the implementation of magnetic separation into existing hydrometallurgical technology to enhance the selectivity of REE.

关键词： Magnetic separation Paramagnetic rare earth ions Enrichment Halbach array Interferometry Aqueous solution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Commentary on "Association of daily sitting time and leisure-time physical activity with body fat among ***"

引用

Journal of Sport and Health Science 2024年第2期13卷 127-129页

作者： barbara E.Ainsworth School of Exercise and Health Shanghai University of SportShanghai 200438China

In their study,association of daily sitting time and leisure-time physical activity (LTPA) with body fat among ***,Liao et al.^(1) analyzed data from the 2011-2018 National Health and Examination Survey to examine associations between h/day sitting,meeting (or not meeting) the *** Activity Guidelines of≥150 min/week of moderate-and vigorous-intensity LTPA,and combinations of sitting time and LTPA on totaland trunk percent body fat (BF%).

关键词： U.S. adult among

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Formal Approach to Meaning: Formal Semantics and Its Recent Developments

引用

外国语 1999年第1期22卷 3-21页

作者： barbara Abbott

语言意义问题一直是哲学家、逻辑学家和语言学家所关心的问题。近几十年来，语义学研究，特别是形式语义学（ｆｏｒｍａｌｓｅｍａｎｔｉｃｓ）取得了前所未有的进展。在国际语言学界，“形式语义学”几乎成了“理论语义学”的代名词（... 详细信息

语言意义问题一直是哲学家、逻辑学家和语言学家所关心的问题。近几十年来，语义学研究，特别是形式语义学（ｆｏｒｍａｌｓｅｍａｎｔｉｃｓ）取得了前所未有的进展。在国际语言学界，“形式语义学”几乎成了“理论语义学”的代名词（ＪｏｈｎＬｙｏｎｓ语）。为了向读者介绍形式语义学的基本概念、历史渊源、研究现状、存在问题和发展趋势，本刊特邀请美国密西根州立大学语言学系副主任ＢａｒｂａｒａＡｂｂｏｔ教授撰写了此稿，旨在引起国内语言学界对形式语义学的兴趣，推动这方面的研究。

关键词：形式语义学蒙太古语法意义

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Conditionals in English and FOPL

引用

外国语 2006年第2期29卷 2-17页

作者： barbara Abbott Michigan State University

该文主要论述了实质条件句和直述条件句的区别,并试图解决在逻辑分析此类句子时所面临的问题。用分析实质条件句的逻辑方法分析自然语言的直述条件句,其存在的问题主要表现在两个方面:1)实质条件句的推理模式明显不适合直述条件句(例如... 详细信息

该文主要论述了实质条件句和直述条件句的区别,并试图解决在逻辑分析此类句子时所面临的问题。用分析实质条件句的逻辑方法分析自然语言的直述条件句,其存在的问题主要表现在两个方面:1)实质条件句的推理模式明显不适合直述条件句(例如逆否推理和否定前件推理),2)将条件句的否定简单等同于前件与后件否定的合并,这往往不能成立。如果考虑到直述条件句的其它方面,或许能够较成功地解决目前存在的问题。首先,将“条件性”当作 if 的规约含义;其次,if 从句是从属于后件的根修饰语,然而不像多数副词性修饰成分,它们不传达新信息。条件句的不对称性,导致逆否推理在多数情况下难以成立或不可能成立。假前件不足以让条件性含义保留下来,因此否定前件推理似乎不能成立。

关键词：实质条件句直进条件句 if从句

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Potential impact of genetically modified Lepidoptera-resistant Brassica napus in biodiversity hotspots： Sicily as a theoretical model

引用

Insect Science 2018年第4期25卷 562-580页

作者： barbara Manachini Giuseppe Bazan Rosario Schicchi Department of Agricultural Food and Forest Sciences University of Palermo Palermo Italy Department of Biological Chemical and Pharmaceutical Sciences and Technologies University of Palermo Palermo Italy

The general increase of the cultivation and trade of Bt transgenic plants resis- tant to Lepidoptera pests raises concerns regarding the conservation of animal and plant biodiversity. Demand for biofuels has increased the cultivation and importation of oilseed rape （Brassica napus L.）, including transgenic lines. In environmental risk assessments （ERAs） for its potential future cultivation as well as for food and feed uses, the impact on wild Brassicaeae relatives and on non-target Lepidoptera should be assessed. Here we consider the potential exposure of butterflies as results of possible cultivation or natural- ization of spilled seed in Sicily （Italy）. Diurnal Lepidoptera, which are pollinators, can be exposed directly to the insecticidal proteins as larvae （mainly of Pieridae） through the host and through the pollen that can deposit on other host plants. Adults can be exposed via pollen and nectar. The flight periods of butterflies were recorded, and they were found to overlap for about 90% of the flowering period ofB. napus for the majority of the species. In addition, B. napus has a high potential to hybridise with endemic taxa belonging to the B. oleracea group. This could lead to an exposure of non-target Lepidoptera if introgression of the Bt gene into a wild population happens. A rank of the risk for butterflies and wild relatives of oilseed rape is given. We conclude that, in environmental risk assessments, attention should be paid to plant-insect interaction especially in a biodiversity hotspot such as Sicily.

关键词： butterflies cross pollination non-target effect oilseed rape protected areas transgenic crop

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High mobility group box-1 protein as a therapeutic target in perinatal hypoxic-ischemic brain injury

引用

Neural Regeneration Research 2021年第10期16卷 2006-2007页

作者： Kazuki Hatayama barbara S.Stonestreet Department of Pediatrics Women&Infants hospital of Rhode IslandThe Alpert Medical School of Brown UniversityProvidenceRIUSA

Perinatal hypoxic-ischemic(HI)brain injury is a leading cause of morbidity and longstanding disability in newborns(Millar et al.,2017).Improved neonatal intensive care has increased survival in infants with pregnancy and birth related ***,many surviving neonates exhibit neurological abnormalities that can persist throughout life(Millar et al.,2017).Early neuroprotective strategies have the potential to improve neurological outcomes and attenuate developmental delay in ***,hypothermia is the only currently approved intervention for HI encephalopathy in fullterm infants,which is only partially protective(Millar et al.,2017).Findings in preterm and full-term infants suggest that elevations in proinflammatory cytokines are important in the pathogenesis of HI-related brain injury(Millar et al.,2017).The high mobility group box-1(HMGB1),a representative damage associatedmolecular pattern(DAMP)protein,has been reported to be implicated in a variety of brain related inflammatory diseases including traumatic brain injury,epilepsy,and stroke(Nishibori et al.,2019).Anti-HMGB1 therapies have gained increasing interest to treat inflammation related disorders in the brain(Nishibori et al.,2019).However,there is a paucity of information regarding the pathology of HMGB1 in HI-related brain injury during the perinatal *** current perspective discusses the potential contributions of HMGB1 to HI-related brain injury during the perinatal period and also addresses the potential of HMGB1 as a therapeutic target of the brain ***,this perspective emphasizes the potential for combinational therapeutics for hypothermia with anti-HMGB1 monoclonal antibodies(mAb)in perinatal HI brain injury.

关键词： protective therapeutic epilepsy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Thermal and radiative characteristics of oxyfluoride glass singly doped with lanthanide ions

引用

Journal of Rare Earths 2010年第6期28卷 893-898页

作者： barbara KLIMESZ Grazyna DOMINIAK-DZIK Witold RYBA-ROMANOWSKI Department of Physics Opole University of Technology Institute of Low Temperature and Structure Research Polish Academy of Sciences

Rare earths-doped oxyfluoride glasses based on germanium oxide and lead fluoride were prepared from commercial raw materials. The glasses with general composition of 50GeO2-(50-x-y)PbO-yPbF2-xLnF3 (Ln=Pr3+-Yb3+), contained different concentrations of optically active dopants (x=0.2 mol.% and 2 mol.%) and PbF2 (y≤15 mol.%). The differential thermal analysis (DTA) was used to determine both thermal characteristic and thermal stability properties of the glasses in the function of the kind of dopant, its concentration, and a glass composition. Characteristic glass temperatures such as glass transition temperature (Tg), glass crystallization temperature (Tc) and temperature corresponding to the maximum of the crystallization rate (Tpc) were evaluated. On the basis of obtained results, the thermal stabilities of glasses under study were evaluated using various thermal stability criteria (Dietzel factor ?T, Saad-Poulain factors H’ and S). It was found that the increase in rare earth fluoride contents influenced thermal characteristics when the characteristic temperatures of the individual glass was shifted towards higher values. The effect of the PbF2 content and the kind of rare earth impurity on the glass stability was observed. Absorption spectra of lanthanide-doped glasses were measured at room temperature and used to determine the phenomenological intensity parameters Ωt and next, to estimate radiative properties of lanthanide ions in this matrix. Radiative transition probabilities of luminescent states of Ln3+, branching ratios and radiative lifetimes were determined. The variation of the Ωt along the lanthanide series was presented and discussed.

关键词： oxyfluoride glasses rare earths DTA thermal stability of glasses radiative transition probabilities radiative lifetimes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：