语言的“工具性”与现代汉语教学

工具性是语言的一种重要性质。在现代汉语教学中,我们要充分利用语言的这一根本特征来提高教学质量,使语言教学科学化。在教学目标上强调培养学生听、说、读、写的语言能力,教学方法上要重视实践,教学内容上要突出实用。

语文教育应重在升华精神境界——兼及“人文性”与“工具性”的辩证关系

语文课是实现学校教育"立人"、育人宗旨,帮助学生树立正确的世界观、人生观、价值观、审美观,全面提高学生素质的重要途径。其着重点在于升华学生的精神世界。语文课既有"人文性"的一面,也有"工具性"的一面。二者的关系由内容与形式辩证统一的哲学规律所决定。完全可能也必须通过思想境界、道德境界、情感境界与审美境界等升华精神境界的途径具体实现。把二者割裂或对立起来,偏执一方,忽视甚至排斥另一方的形而上学态度,是不可取的。在此问题上与其作徒劳无功的论争,不如下大工夫把它统一到升华精神境界,实现"立人"育人宗旨,全面提高学生素质上来。

语文:敢问路在何方?——找准“工具性”与“人文性”的平衡点

顾之川同志在《高中语文教学大纲(试验修订版)述要》中说:鉴于目前中学语文教学中某些“纯工具性”的做法仍很盛行,新大纲有意淡化了“工具性”,加强了“人文性”,体现了素质教育的精神,使语文教育理念发生了变化。

从道德化贫困到能力贫困:论西方贫困观的演变与发展

西方贫困观演变可以追溯到古希腊-罗马时期,从苏格拉底等区分需求和欲求形成的"以穷为恶"的道德化贫困观开始,之后演变成中世纪时期基督教教义下的"以穷为荣"和文艺复兴以来祛道德化的"以穷为恶"。贫困观的祛道德化肯定了财富积累,从而为资本主义经济兴起初期产生的"工具性"贫困观提供了理论基础。在原始资本积累和市场经济扩张的进程中,古典政治经济学倡导的"工具性"贫困观适应了资本主义经济发展的需要,这也导致了西方资本主义国家在相当长的时期内依靠收入标准制定解决绝对贫困的措施。然而,市场经济不断更新着人们对需求的定义,"工具性"贫困观下的单维收入贫困对新环境下社会问题的解释力备受质疑。阿玛蒂亚·森能力贫困理论的提出则标志西方贫困观的根本性转变,能力贫困观以其实现了对贫困本质认知的回归为公众所接受,全球范围内的反贫困也在能力贫困观引致的"革命性"转变后转入多维贫困的视角。

中国高等教育:人的“主体性”的隐退与遮蔽——关于一份抽样调查的分析与思考

随着高考录取率的逐渐升高,越来越高比例的学生进入了高等学校接受教育。高等教育也将影响越来越高比例的学生的人生。近年来,中国高等学校"就业教育"的定位,造成了当下大学生在学业和做人方面双重的实用主义、功利主义倾向,人的工具性被不断强化和延伸,严重湮没了人的主体性特征。抽样调查的数据也印证了这种倾向。

指向“人文化成”的语文知识分类研究

从"工具性"、"审美性"、"价值性"相结合的现代语文知识观的角度审视现有的语文课程内容,要求语文知识更多地关照知识与人的生存意义之间的联系,提升人的精神生命。面对"知识灌输"与"人文化成"之间的矛盾,应认真检视传统语文知识的分类;积极构建指向"人文化成"的语文知识。

Is transient elastography a useful tool for screening liver disease?

Transient elastography(TE)is a new non invasive tool for measuring liver stiffness,which is correlated to the histologic stage of liver fibrosis.Several studies in chronic liver disease(CLD)have determined a good accuracy of TE in predicting significant fibrosis and an optimal accuracy in predicting cirrhosis.Normal liver stiffness ranges between 3.3-7.8 KPa and using a cut off of 7.1 KPa,significant fibrosis and cirrhosis can be excluded with a very high negative predictive value(NPV).Positive predictive value(PPV)for the diagnosis of cirrhosis is lower using just a single scan but increases to 90% if high stiffness values are confirmed by a second independent scan.However the presence of fatty liver and metabolic syndrome slightly increases the readings and may reduce the accuracy of the test.It is uncertain if this increase is related to the presence of steatofibrosis or ifit is caused by steatosis itself.TE can be used in screening patients attending the liver clinics to identify those with signifi cant fi brosis or cirrhosis and may be particularly useful in discriminating HBV inactive carriers from chronic hepatitis B patients.TE,however,is not reliable in predicting the presence of esophageal varices in cirrhotics.Another potential indication for TE is the systematic screening of populations at high risk for CLD,such as intravenous drug users and alcoholics,but further studies are needed to determine its diagnostic accuracy in these settings.

英语学习中的学习倾向和探讨

本栏此次发表两篇研究学习外语的文章。这两篇文章分别从人的学习倾向和个体差异来探讨如何学习外语、进行外语教学改革,很值得外语教师和外语研究者一读。

An analysis on the connotation and necessity for ecological accounting

With mankind＇s paying more attention to eco-environment, traditional accounting has not been adapted itself to the implementation of eco-economy management activities. Therefore, it is necessary and inevitable for ecological accounting to enter into the research field of accounting. The article comprehensively researches the identification and interpretation of connotation for ecological accounting and the necessity of implementing ecological accounting in China.

Diagnosis of spontaneous bacterial peritonitis: An update on leucocyte esterase reagent strips

Ascites remain the commonest complication of decompensated cirrhosis. Spontaneous bacterial peritonitis (SBP) is defined as the infection of ascitic fluid (AF) in the absence of a contiguous source of infection and/or an intraabdominal inflammatory focus. An AF polymorphonuclear (PMN) leucocyte count ≥ 250/mm 3 -irrespective of the AF culture resultis universally accepted nowadays as the best surrogate marker for diagnosing SBP. Frequently the results of the manual or automated PMN count do not reach the hands of the responsible medical personnel in a timely manner. However, this is a crucial step in SBP management. Since 2000, 26 studies (most of them published as full papers) have checked the validity of using leukocyte esterase reagent strips (LERS) in SBP diagnosis. LERS appear to have low sensitivity for SBP, some LERS types more than others. On the other hand, though, LERS have consistently given a high negative predictive value (> 95% in the majority of the studies) and this supports the use of LERS as a preliminary screening tool for SBP diagnosis. Finally, an AF-tailored dipstick has been developed. Within the proper setting, it is set to become the mainstream process for handling AF samples.

An efficient design tool based on FEM for evaluating effects of components properties and operating conditions on interaction of tire with rigid road

It is noted that any variation in operating conditions has a considerable effect on the tire/road interaction. Furthermore,choosing a range of proper values for carcass stiffness is very essential for both tire safety and effective driving action. In this work,an elaborated 3D model fully compliant with the geometrical size of radial tire 185/60 R15 is worked up, for evaluating the effects of components properties and working conditions on deformation and stress/strain fields created inside the tire. For the simulation, the tire structure is assumed to be composed of tread, carcass ply, and bead. The mechanical behavior of rubber as main component of tire is described by Mooney-Rivlin material model. The comparison of the obtained results and laboratory tests demonstrates the validity and high accuracy of analysis.

Quality of life in patients with esophageal stenting for the palliation of malignant dysphagia

Diamantis G, Scarpa M, Castoro C, Ancona E and Battaglia G designed the research; Diamantis G, Scarpa M, Bocus P, Realdon S and Castoro C performed the research; Castoro C, Ancona E and Battaglia G contributed analytic tools; Diamantis G, Scarpa M, Bocus P, Realdon S and Castoro C analyzed the data; Diamantis G and Scarpa M wrote the paper; all authors revised and approved the final version of the manuscript.

Potential Applications of HS-SPME/GC in Oxidized Vegetable Oils

Headspace solid phase microextraction chromatography （HS-SPME/GC） was evaluated as a tool in determining the rate of oxidation in oxidized soybean oil samples by measuring the production of hexanal as a secondary major volatile breakdown product of linoleic acid. Samples of the headspace taken from sealed 20 mL vials, incubated 30 min at 50 ~C followed by 5 min adsorption, were injected into a gas chromatograph with 2 min thermal desorption. In applying SPME, different analytical conditions were evaluated. The linearity of response of the volatiles for the HS-SPME/GC procedure using a carboxen-polydimethylsiloxane fiber was determined from 3 g of mineral oil spiked with a hexanal standard solution at different levels. Using the optimized extraction conditions, an R value close to unity （R = 0.999） was found, and the repeatability （n = 1 l） was 6.31%. The results indicated that hexanal is linearly related to peroxide value （PV） only intermediate PV ranges （10-18 meq/kg）. The study also showed that HS-SPME/GC procedure was a simple and reproducible method for the analysis of hexanal in the HS of commercial soybean oil samples, and is useful as a quality control and research tool for the evaluation of flavor quality and shelf life of vegetable oils.

Milling Machinability of TiC Particle and TiB Whisker Hybrid Reinforced Titanium Matrix Composites

The milling machinabilities of titanium matrix composites were comprehensively evaluated to provide a theoretical basis for cutting parameter determination. Polycrystalline diamond （PCD） tools with different grain sizes and geometries, and carbide tools with and without coatings were used in the experiments. Milling forces, milling temperatures, tool lifetimes, tool wear, and machined surface integrities were investigated. The PCD tool required a primary cutting force 15 % smaller than that of the carbide tool, while the uncoated carbide tool required a primary cutting force 10% higher than that of the TiA1N-eoated tool. A cutting force of 300 N per millimeter of the cutting edge （300 N/mm） was measured. This caused excessive tool chipping. The cutting temperature of the PCD tool was 20%-30% lower than that of the carbide tool, while that of the TiA1N-coated tool was 12% lower than that of the uncoated carbide tool. The cutting temperatures produced when using water-based cooling and minimal quantity lubrication （MQL） were reduced by 100 ~C and 200 ~C, compared with those recorded with dry cutting, respectively. In general, the PCD tool lifetimes were 2--3 times longer than the carbide tool lifetimes. The roughness Ra of the machined surface was less than 0.6μm, and the depth of the machined surface hardened layer was in the range of 0.15-0.25 mm for all of the PCD tools before a flank wear land of 0.2 mm was reached. The PCD tool with a 0.8 mm tool nose radius, 0% rake angle, 10% flank angle, and grain size of （30＋2） μm exhibited the best cutting performance. For this specific tool, a lifetime of 16 rain can be expected.

Magnetic resonance imaging:A new tool for diagnosis of acute ischemic colitis?

AIM： To define the evolution of ischemic lesions with 7T magnetic resonance imaging （7T-MRI） in an animal model of acute colonic ischemia. METHODS： Adult Sprague-Dawley rats were divided into two groups. Group I underwent inferior mesenteric artery （IMA） ligation followed by macroscopic observa- tions and histological analysis. In group H, 7T-MRI was performed before and after IMA ligation and followed by histological analysis. RESULTS： Morphological alterations started to develop 1 h after IMA ligation, when pale areas became evident in the splenic flexure mesentery and progressively wors-ened up to 8 h thereafter, when the mesentery was less pale, and the splenic flexure loop appeared very dark. The 7T-MRI results reflected these alterations, showing a hyperintense signal in both the intraperitoneal space and the colonic loop wall 1 h after IMA ligation; the lat- ter progressively increased to demonstrate a reduction in the colonic loop lumen at 6 h. Eight hours after IMA ligation, MRI showed a persistent colonic mural hyper- intensity associated with a reduction in peritoneal free fluid. The 7T-MRI findings were correlated with histolog- ical alterations, varying from an attenuated epithelium with glandular apex lesions at 1 h to coagulative necro- sis and loss of the surface epithelium detected 8 h after IMA ligation. CONCLUSION： MRI may be used as a substitute for invasive procedures in diagnosing and grading acute ischemic colitis, allowing for the early identification of pathological findings.

Assessing the Sustainability of Underground Space Usage——A Toolkit for Testing Possible Urban Futures

A description of the future as it might be without forecasts, predictions and trend analysis can be referred to as a 'future scenario'. An abundance of scenarios literature exists in which numerous pictures have been painted of changed future worlds. However, upon closer inspection it becomes apparent that virtually all of this literature refers to changes occurring above ground, ignoring the inevitable consequences (or opportunities) for sustainable use of underground space, not least in densely populated urban areas, some of which may be underlain by complex geological conditions. This paper reports on the development (to date) of an 'Urban Futures' (UF) toolkit for sub-surface environments (including infrastructure and utilities) which, through use of 'key' questions 'sustainable' indicators and a 'contextual' narrative, allows for better definition and measured performance of underground space in the UK, both today and in the future. The toolkit explores possible uses for underground space within 4 plausible and well-cited future scenarios (i.e. New Sustainability Paradigm, Fortress World, Market Forces and Policy Reform). This forms part of a much larger generic toolkit which the UF research team are developing for exploring possible future scenarios over a range of UK urban regeneration case study areas.

An equivalent-tool theory for acoustic logging and applications

The influence of an acoustic logging tool on borehole guided wave propagation should be considered in the processing and inversion of the guided waves for formation acoustic property estimation. This study introduces an equivalent-tool theory that models the tool response using an elastic rod with an effective modulus and applies the theory to multipole acoustic logging for both wireline and logging while drilling （LWD） conditions. The theory can be derived by matching the tool’s acoustic impedance/conductance to that of the multipole acoustic wavefield around the tool, assuming that tool radius is small compared to wavelength. We have validated the effectiveness and accuracy of the theory using numerical modeling and its practicality using field data. In field data applications, one can calibrate the tool parameters by fitting the theoretical dispersion curve to field data without having to consider the actual tool’s structure and composition. We use a dispersion correction example to demonstrate an application of the simple theory to field data processing and the validity of the processing result.

Orthographic,Semantic,and Contextual Influences on Initial Processing and Learning of Novel Words During Reading:Evidence From Eye Movements

This study investigates how orthographic,semantic and contextual variables—including word length,concreteness,and contextual support—impact on the processing and learning of new words in a second language(L2)when first encountered during reading.Students learning English as a foreign language(EFL)were recruited to read sentences for comprehension,embedded with unfamiliar L2 words that occurred once.Immediately after this,they received a form recognition test,a meaning recall test,and a meaning recognition test.Eye-movement data showed significant effects of word length on both early and late processing of novel words,along with effects of concreteness only on late-processing eye-tracking measures.Informative contexts were read slower than neutral contexts,yet contextual support did not show any direct influence on the processing of novel words.Interestingly,initial learning of abstract words was better than concrete words in terms of form and meaning recognition.Attentional processing of novel L2 words,operationalized by total reading time,positively predicted L2 learners’recognition of new orthographic forms.Taken together,these results suggest:1)orthographic,semantic and contextual factors play distinct roles for initial processing and learning of novel words;2)online processing of novel words contributes to L2 learners’initial knowledge of unfamiliar lexical items acquired from reading.

Total colorectal and terminal ileal duplication presenting as intussusception and intestinal obstruction

Colonic intussusception and gastrointestinal duplication are diseases that arise in young children. The clinical presentation of adult cases of intussusception and enteric duplication is non-specific and thus poses a diagnostic challenge. A computed tomography (CT) scan is recommended in adult cases as the most sensitive diagnostic tool and the pathognomonic finding of outer intussuscepiens and central intussusceptum is diagnostic. A septum of a duplicated colon in a non-intussuscepted segment has been rarely reported in the literature. With advancements in radiological imaging technology and the increased availability of CT scanners, the capacity for a correct pre-operative diagnosis has been significantly enhanced. Our current case report illustrates the importance of considering an uncommon etiology for enteric intussusception and duplication as a differential diagnosis of acute abdomen in an adult patient. Our analyses of this patient also highlight the successful use of CT scanning to make this diagnosis.

Beyond Binary Opposition： Reinterpretation of Mr. Pontellier in the Awakening

The American writer Kate Chopin＇s masterpiece, The Awakening published in the late 19th century is one of the classics in female literature. The heroine Edna having the courage to pursue self-reliance and express her self-awareness, is regarded as a ＂new woman＂, while the comments on her husband, Mr. Pontellier are quite negative--He regards Edna as a private property and a sexual tool, leading to her awakening and suicide. In this paper, the author reinterprets Mr. Pontellier with the method of close reading in new criticism, deeming that it is the binary opposition in thinking that leads to the misreading. Mr. Pontellier was just a follower of the tradition and custom. The objective evaluation and reinterpretation to him can help students to develop the habit of critical thinking and the courage to pursue truth is case they form a simple thinking mode of the binary opposition.