建筑材料检测中影响检测结果的关键因素研究

对检测方法、检测仪器设备、检测操作过程、取样、检测环境的温度和湿度、检测结果的处理等几个影响建筑材料检测结果的关键因素进行分析,并针对每个因素分别提出了相应的应对方法。研究结果可供从事建筑材料检测的人员参考,对国内建筑材料检测结果准确率和建筑工程质量的提高有一定的促进作用。     

Child sexual abuse: factors affecting victims' removal from home

This study was conducted to examine factors associated with children's protective service workers' decision to remove sexually abused children from the family home. The decision to remove was analyzed relative to the following six factors: (1) nature of the abuse, (2) severity of abuse, (3) frequency of abuse (4) mothers' employment status, (5) mothers' compliance with a recommended treatment plan, and (6) mothers' belief of the victim. Discriminant function analysis revealed that the discriminant function containing mothers' compliance, mothers' belief, severity of abuse, mothers' employment status, and frequency of abuse, in order of importance of contribution, was significantly related to victims' removal from the home.     

影响课堂教学质量的多因素分析

对影响课堂教学质量的诸因素（教学能力、教学态度和教学效果）进行多元回归分析，认为其主要影响因素是教学认真、启发式教学、学习兴趣、突出重点、熟悉大纲、精选教材和提高“双基”水平，同时结合分析结果，探讨了教学质量应注意的几个问题，以促进教学改革。     

影响磁共振的几个外部因素

目的:探讨影响磁共振成像设备性能的外部因素。方法:根据磁共振成像设备的特点,分别分析了对磁共振成像有影响的外部因素,包括设备周边环境、射频屏蔽、空调、冷水机等。结果:外部因素会影响磁共振成像设备性能的发挥,会影响图像的质量,会导致设备故障。结论:处理好对磁共振成像设备有影响的外部因素,是有效发挥磁共振成像设备性能、获得高质量图像的保证。     

Experimental investigation of the factors affecting accuracy and resolution of the pore structure of cement-based materials by thermoporometry

Thermoporometry （TPM） is a calorimetric-based technique for characterizing pore structure according to the freezing and melting point depression of liquid confined in pores which attributes to a varying phase-transition free energy by interface curvature. TPM has demonstrated an emerging success in applications for determining the mesopores of cement-based materials in recent decades. To improve its resolution and accuracy, this paper discussed these factors which show a great influence on the baseline heat flow and the derived pore structure using two molecular sieves with discontinuous size for calibration, referring to the sample handling, the mass of sample and the varying temperature. The pore size distributions of ordinary and high-strength concrete by TPM were favorably compared to the results taken by nitrogen adsorption/desorption （NAD） and mercury intrusion porosimetry （MIP）. The results illustrated that both the accuracy and resolution improve with the decreasing cooling/heating rate until 1 ℃/rain; however, if the rate is too slow, it can lead to an unstable result. The mass of the sample tested has much less an effect on the accuracy when it increases to more than 30 mg. TPM is demonstrated to be more accurate to characterize the mesopores with the size bigger than 4 nm as compared to NAD and MIP.     

自主性外语学习的影响因素

长期以来我国的教学模式使学生依赖性较强，自觉性较差，而发展学生的自觉性应从转变学生的自主学习态度入手。文章认为自主学习受诸多因素影响，必须多方努力，发挥各方面的优势，实现内外因素结合的最优化．以培养和提高学习者自主学习的意识和能力。     

Some temporal factors affecting conditional discrimination

Pigeons acquired a serial conditional discrimination in which the onset of one of two colors (the instructional cue) on the center key preceded the onset of a white light (the trial cue) on one of two side keys. An autoshaping preparation was employed, in which food was delivered depending upon the color-side combination. Five groups of birds were studied at instructional cue durations of either 30 or 60 sec, and trial cue durations of 3, 6, or 12 sec. These temporal parameters allowed for different ratios of the instructional stimulus duration (I) to the trial stimulus duration (T), while keeping the absolute duration of the instructional stimulus constant, and for different absolute durations of the instructional stimulus, while keeping the I/T ratio constant. These manipulations were studied with either a 30 or a 60-sec cycle (the interval between the onset of the intertriai interval and the offset of the trial cue), thus permitting examination of the cycle duration to trial duration ratios as well. The results showed that the larger the value of I relative to that of T, the greater the final level of accuracy; this implicates the I/T ratio as a controlling variable. In contrast, the larger the cycle duration (C) relative to T, the greater the rate of responding to the trial stimulus, which is consistent with previous findings in autoshaping studies. These results suggest that whereas the C/T ratio directly influences response rate, the I/T ratio affects accuracy in a serial conditional discrimination.     

新课程改革:影响有效实施的因素透析

课程实施是课程改革的关键性环节。而影响课程实施的因素又是多方面的，不仅包括现有的教育体制、改革措施，而且还有执教的素质及社会环境等。深入探析这些因素，有利于促进我国当前基础教育新课程改革与实验的进程。     

校园文化建设的几个关键因素

校园文化是大学里师生特有的思想观念、价值取向、思维方式、心理素质等精神因素,以及校园环境、教学设施、活动空间等物质因素和有特色的生活方式、行为方式、人际交往方式、各种文体社团活动等活动因素共同形成的精神环境和文化氛围。校园文化对于形成优良的校风、学风、工作作风和激发创造力、增强凝聚力、弘扬主旋律,可以产生一种良性互动的作用,是大学核心竞争力的重要组成部分,也是大学精神和大学品牌的重要体现。校园文化建设是教育的重要组成部分,是教育大系统中的一个子系统,是有规律可循的。一旦掌握了校园文化建设的规律,就可以…     

探析影响英语写作水平的若干因素

采用一个多维的“英语水平”模式，研讨汉语写作水平、英语口语能力和英语表达水平对英语写作水平的影响，结果表明：汉语写作水平、英语口语能力和英语表达水平对英语写作水平有直接影响，而英语领会知识和能力对英语写作水平没有直接影响。     

技术对政治影响的因素分析

本文主要从技术可以显示政治,技术可以服务政治,可以促进政治的发展,也可以颠覆政治等几方面分析了技术对政治影响,从而阐述了技术与政治的密切关系。     

对影响绘画价值取向因素的分析

绘画在相当长的一段时间里是人类认识和反应自然的唯一手段。它具有一定的视觉性和空间性,虽然它的属性不变但它的价值取向却是在不同时期有着不同的变化。追根溯源,影响绘画价值取向的因素很多,本文通过分析绘画本质,把握影响绘画主旨的要素。     

浅析影响学生品德的因素

提高德育的实效性首先必须明确影响学生品德形成的因素,本文着重从家庭、学校和社会三个方面分析了新形势下影响学生品德形成的具体因素.     

Coeducation and factors affecting choice of university courses

One of the arguments in favour of single-sex schools for girls is that they encourage the study of traditionally male-dominated subjects. To test this hypothesis, the association between coeducation and faculty choice is examined for students from private schools entering Monash University in 1990 and 1992. No significant association is found for girls at non-Catholic independent schools or boys or girls at Catholic schools. For boys at non-Catholic independent schools, coeducation is associated with higher chance of studying science-based courses at university. There is a similar, but not statistically significant, association for girls at Catholic schools.     

Cognitive factors affecting student understanding of geologic time

A critical element of the earth sciences is reconstructing geological structures and systems that have developed over time. A survey of the science education literature shows that there has been little attention given to this concept. In this study, we present a model, based on Montagnero's ( 1996 ) model of diachronic thinking, which describes how students reconstruct geological transformations over time. For geology, three schemes of diachronic thinking are relevant: 1. Transformation, which is a principle of change; in geology it is understood through actualistic thinking (the idea that present proceeses can be used to model the past). 2. Temporal organization, which defines the sequential order of a transformation; in geology it is based on the three‐dimensional relationship among strata. 3. Interstage linkage, which is the connections between successive stages of a transformation; in geology it is based on both actualism and causal reasoning. Three specialized instruments were designed to determine the factors which influence reconstructive thinking: (a) the GeoTAT which tests diachronic thinking skills, (b) the TST which tests the relationship between spatial thinking and temporal thinking, and (c) the SFT which tests the influence of dimensional factors on temporal awareness. Based on the model constructed in this study we define the critical factors influencing reconstructive thinking: (a) the transformation scheme which influences the other diachronic schemes, (b) knowledge of geological processes, and (c) extracognitive factors. Among the students tested, there was a significant difference between Grade 9–12 students and Grade 7–8 students in their ability to reconstruct geological phenomena using diachronic thinking. This suggests that somewhere between Grades 7 and 8 it is possible to start teaching some of the logical principles used in geology to reconstruct geological structures. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 415–442, 2003     

An exploratory investigation into factors affecting visual balance

Throughout the history of art more attention has been given to pictorial balance than to any other principle of visual composition. When examining pictorial balance, the visual weights of significant elements within a given field must be taken into consideration. This study, by means of ocular photography and the analysis of eye fixations, examined factors that have an effect upon visual weight. Confirming earlier studies, the upper half of a visual field was found to have inherently greater visual weight than the lower half. While several researchers have attributed greater visual weight to the left side of a field, others have favored the right. Data from this study were not sufficiently reliable to indicate a preference for either side. Results were insufficient to support the hypothesis that the upper left quadrant has greater inherent visual weight than the upper right quadrant. While it was shown that the interrelationships between tone and size have an effect on visual weight, the exact nature of these relationships must await future investigation.     

影响科学认识的因素研究

社会需求是促进科学认识发展的首要因素，社会历史文化及宗教对科学认识具有促进和制约双重作用。人类认识能力是科学认识的基础，科学自身发展水平和科学认识手段限制着科学认识，学科分化对科学认识具有制约作用，非意识后果对科学认识提出了新的挑战。弄清楚这些问题能为人类解决科学发展中面临的困境寻求一条出路。