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1.
Biochemical changes of natural actomyosin from fresh pale, soft, exudative (PSE) and normal pork were studied, and the effects of different storage temperatures and different incubation temperature and times on sample superprecipitation, total sulfhydryl (-SH) content, and ATP (adenosine triphosphate) sensitivity were investigated. The results demonstrated that ATPase activity and thermal stability of PSE actomyosin were lower than those of normal pork; and that PSE actomyosin had higher -SH content than that of normal pork at all incubation temperatures and times tested. 相似文献
2.
Pigeons were trained in a within-subjects design to discriminate empty intervals (bound by two 1-sec visual markers) and filled
intervals (a continuous visual signal). The intervals were signaled by different visual stimuli and they required responses
to different sets of comparison stimuli. In Experiment 1, empty intervals were judged longer than filled intervals. The difference
between the point of subjective equality (PSE) for the empty intervals and the PSE for filled intervals increased as the magnitude
of the anchor-duration pairs increased. Although there was more pecking during filled intervals than during empty intervals,
there was no significant correlation between pecking during filled intervals and the value of the PSE. In Experiment 2, empty
intervals continued to be judged longer than filled intervals, even when pigeons were required to refrain from pecking during
filled intervals. Keypecking per se does not appear to play an important role in the empty-filled timing difference. 相似文献
3.
Post-secondary education (PSE) is an important option in the educational and employment paths of students with intellectual disabilities (ID). However, PSE for young adults with ID is not in wide use across the world. Different issues might affect the geographical spread of PSE programmes. Some of these are related to the attitudes, expectations and/or funding for those programmes. In this systematic review, the PSE experiences of different stakeholder groups (young adults with ID, their parents, PSE staff and students without a disability) were examined by reviewing findings across 22 studies that investigated PSE for students with ID. This examination encompassed attitudes and motivation to engage with PSE, as well as stakeholders’ perceived barriers and facilitators in accessing and remaining in the three PSE models (separate, inclusive and mixed). Students with ID and their parents were the stakeholder groups least represented in the available evidence. Findings suggested that most stakeholder groups reported positive experiences of PSE derived mostly from gains in social skills and independence. Several barriers to accessing PSE were reported by each group, namely physical and academic barriers by students with ID, an understanding of the PSE system by their parents, and the lack of training by PSE staff. Evidence from the present review seems to indicate that inclusive PSE models were associated with a more positive experience across stakeholder groups. 相似文献
4.
BackgroundA frequent response for prenatal substance exposure (PSE) is intervention by child protective services (CPS). Previous research has examined differences in reports to CPS regarding PSE by substance exposure and by maternal race. However, little is known regarding the frequency of immediate removals by CPS relating to PSE and maternal race.MethodsWe investigated hospital reports to CPS and CPS removals of PSE infants by using linked birth, hospital discharge, and CPS records for all children born in Washington State between 2006 and 2013 (N = 760,863). We identified PSE using diagnostic codes, calculated prevalence by substance type and maternal race, and tested for differences by interactions of race and substance using multinomial logistic regression.ResultsPrevalence of PSE births varied by race with 8.1% of Native American, 2.8% of black, 1.9% of white, and 0.8% of Hispanic births diagnosed with PSE. Opioids was the most common type of PSE diagnosis at 48.2%. The majority of PSE infants (86.7%) were not removed by CPS but variations by substance type were observed. Of the interactions in the multinomial logistic regression model, only black infants exposed to alcohol were more likely to result in reports to CPS without removal than the referent group of white infants exposed to opioids.ConclusionsFindings indicate that most infants diagnosed with PSE were not removed by CPS and minority PSE infants were not reported to CPS or removed by CPS more than white infants. Racial differences identified in the prevalence of PSE present opportunities for targeted prevention efforts. 相似文献
5.
Paul W. Holland Sandip Sinharay Alina A. von Davier Ning Han 《Journal of Educational Measurement》2008,45(1):17-43
Two important types of observed score equating (OSE) methods for the non-equivalent groups with Anchor Test (NEAT) design are chain equating (CE) and post-stratification equating (PSE). CE and PSE reflect two distinctly different ways of using the information provided by the anchor test for computing OSE functions. Both types of methods include linear and nonlinear equating functions. In practical situations, it is known that the PSE and CE methods will give different results when the two groups of examinees differ on the anchor test. However, given that both types of methods are justified as OSE methods by making different assumptions about the missing data in the NEAT design, it is difficult to conclude which, if either, of the two is more correct in a particular situation. This study compares the predictions of the PSE and CE assumptions for the missing data using a special data set for which the usually missing data are available. Our results indicate that in an equating setting where the linking function is decidedly non-linear and CE and PSE ought to be different, both sets of predictions are quite similar but those for CE are slightly more accurate . 相似文献
6.
苏格兰"人格与社会教育"(PSE)课程起源于20世纪70年代,PSE课程不仅是苏格兰基础教育卓越课程八个课程领域之一,同时也是儿童和青少年学习的核心内容之一。PSE课程聚焦于儿童与青少年的心理与生理健康、人际关系和社会技能,致力打造多学科融合课程,也被苏格兰地区当作学校开展心理健康教育的重要途径。PSE课程基准给出的指标清晰明确,课程内容覆盖面广、划分详细,课程实施以PSE课程共同体开展,凸显了多方协作的优势。苏格兰PSE课程的设计与实施对我国中小学心理健康教育的开展与心理健康课程的改革发展有一定的启示作用。 相似文献
7.
Enhancing the dispersion and dissolution of substrate particles in substrate water suspension is a feasible way to improve steroid bioconversion. The aim of the present study is to investigate the effects of applying surfactant to microbial conversion system on the dispersion, solubilization and in turn bioconversion of steroid substrate. The model system is hydroxylation of substrate 19α- 17α-epoxy- 4-pregnene- 3.2It-dine by microbial enzymes from Rhizopus nigricanl. The results show that the presence of substrate leads to an increase in critical micelle concentration （ CMC） of surfactant PSE compared with the normal CMC of PSE in aqueous solution. The grinding time during substrate suspension preparation affects the substrate aqueous solubility differently with the varied surfactant concentrations while barely making any difference in substrate solubility in the absence of surfactant. The properly prolonged grinding time can make up for the loss in substrate solubility arising from the reduction in surfactant concentration. The surfactant complexes composed of surfactants PSE and MGE at appropriate ratios are screened out with orthodoxy experiment method. the interaction between PSE and MGE exerts the most prominent effects on substrate bioconversion, and the surfactant complexes show more beneficial effects on steroid bioconversion than the surfactant PSE used alone. 相似文献
8.
Research on the marketing practices of religiously affiliated post-secondary education (PSE) organizations is scarce, and generally geared towards assessing their “fidelity” to their religious roots. Through this study, we seek to examine the promotional strategies employed by 194 Catholic universities and colleges (CUCs) in the USA. Using a mixed-methodological form of content analysis, we examine the textual and graphic content of their institutional home webpages. We find that CUCs promise prospective students holistic self-actualization through (i) personalized attention within the classroom and (ii) a wholesome social environment. These efforts are found to render CUCs a “boutique” alternative to mainstream PSE institutions. 相似文献
9.
为提高鱼香肉丝的贮藏品质和延长其保藏期,在温度为0-4℃冷藏条件下,设10个气调包装的复合防霉剂处理组,探讨不同的复合防霉剂对鱼香肉丝的贮藏效果.结果显示：在24 d的贮藏期内,0.1%山梨酸钾、0.1%双乙酸钠、0.04%脱氢乙酸钠和1.50%甘油复合使用对鱼香肉丝保藏效果最佳,细菌总数都较低,感官评定最佳. 相似文献
10.
The Youth in Transition Survey is used to follow the postsecondary education (PSE) pathways and outcomes of Canadian youth over the mid 2000s. Students starting at community colleges and four year universities are analyzed separately. First program outcomes are reported, showing the proportions of students who leave their first programs but remain in PSE by switching/transferring to other programs, institutions, or levels. Multinomial regression estimates correlates of students’ first program switching and leaving decisions. Five year graduation rates are calculated to show the importance of different pathways (across programs, institutions, and levels) to earning a PSE credential; in the aggregate and for subgroups of students. Transfers constitute important but not terribly large pathways for Canadian students to adjust their PSE and obtain PSE credentials. We calculate the resulting extent to which institution specific measures of persistence, PSE leaving, and graduation rates misstate the rates experienced by students. Compared to American students, university and community college starters in Canada have higher persistence and graduation rates and lower transfer rates across institutions. For community college starters, much of the difference is due to the relative lack of well defined pathways from community colleges to universities in Canada. We find that students with more family resources are better able to transfer across programs or institutions in order to obtain a PSE credential. 相似文献
11.
Early intervention is a systematic approach for identifying and co-ordinating support for children up to five years of age with developmental delay. The increasing number of children needing early intervention is leading to longer waiting lists for assessment, treatment and diagnosis. Through a mixed-methods approach, this study examined the impact of waiting lists on parental self-efficacy (PSE). An online survey was completed by 197 mothers of children with special educational needs aged one to seven years. Six mothers later took part semi-structured interviews. The research aimed to establish (a) whether there was a relationship between length of time on waiting lists and PSE, and (b) whether there were specific themes or patterns associated with delayed early intervention and PSE. Results showed no significant relationship between time spent on a waiting list and perceived PSE. The qualitative results, however, found that limited contact and poor quality of interactions alongside a lack of information did reduce perceived PSE. 相似文献
12.
The political economy of post-secondary education: a comparison of British Columbia,Ontario and Québec 总被引：1，自引：0，他引：1
A policy sociology approach is taken to examine the connections between neo-liberalism, post-secondary provincial education
(PSE) policy in Canada and the impact of those policies. Our thesis regarding the broad political economy of PSE is that over
the last two decades the adoption of this ideology has been a major cause of some dramatic changes in these policies and has
brought about a fundamental transformation of PSE in Canada. The discussion builds on a comparative, multiple, nested case
study conducted at the provincial (Québec, Ontario and British Columbia) and national level. Through the analysis of key provincial
and federal documents, the team concludes that five themes dominated the PSE policy-making process. These themes are Accessibility,
Accountability, Marketization, Labour Force Development and Research and Development. In discussing these themes, we illustrate
their impact on and within the three provincial PSE systems: BC, Ontario and Québec. In the conclusion, we place the changes
in their political and economic contexts and explicate the intended and unintended consequences of these policy priorities.
We argue that the pressure for access has led to the emergence of new institutional types, raising new questions about differentiation,
mandate and identity and new lines of stratification. A trend toward vocationalism in the university sector has coincided
with ‘academic drift’ in the community college sector, leading to convergences in programming and institutional functions
across the system, as well as competition for resources, students, and external partners. Unprecedented demand has made education
a viable industry, sustaining both a proliferation of private providers and a range of new entrepreneurial activities within
public institutions. Levels and objectives of public funding have swung dramatically over the period. Public investments in
PSE, in the form of capital grants and tuition subsidies, have alternately expanded and contracted, being at some times applied
across the board and at others targeted to specific social groups or economic sectors. Likewise, policymakers have treated
PSE at times as a mechanism for social inclusion and equality, at others as an instrument for labour force development, and
at yet others as a market sector in its own right.
相似文献
| Donald FisherEmail: |
13.
用三种不同蛋白酶(胰蛋白酶和酸性蛋白酶)对猪肉在不同条件下进行酶解，利用甲醛滴定法对水解效果进行了对比。采用L18(37)确定两种蛋白酶水解猪肉的最佳工艺参数。 相似文献
14.
不同品种鸡蛋中胆固醇含量的比较研究 总被引：2，自引：0，他引：2
随机选取32～36周龄罗曼褐鸡、闽中麻鸡、淮南鸡三种健康鸡的新鲜鸡蛋各30枚,测定不同品种鸡蛋中胆固醇的含量及其常规营养成分,比较研究品种对胆固醇含量的影响。试验结果表明,不同品种鸡蛋中胆固醇含量差异显著,其中每克蛋黄胆固醇含量以淮南鸡最高,为16．32 mg,比罗曼褐鸡高24．20％ (P<0．05),比闽中麻鸡高3．95％(P>0．05);每枚鸡蛋胆回醇含量以闽中麻鸡最高,为241．31g,比罗曼褐鸡高9．18％(P<0．05),比淮南鸡高5．99％(P>0．05)。不同品种对鸡蛋中其他常规营养成分的影响不明显。 相似文献
15.
According to the mixed memory model (Penney, Gibbon, & Meck, Journal of Experimental Psychology: Human Perception and Performance, 26, 1770–1787, 2000), different clock rates for stimuli with different nontemporal properties must be stored within a single reference memory distribution in order to detect a difference between the clock rates of the different signals. In Experiment 1, pigeons were trained in a between-subjects design to discriminate empty intervals (bound by two 1-s visual markers) and filled intervals (a continuous visual signal). The intervals were signaled by different visual stimuli, and they required responses to different sets of comparison stimuli. Empty intervals were judged as being longer than filled intervals. The difference between the point of subjective equality (PSE) for the empty intervals and the PSE for the filled intervals increased proportionally as the magnitudes of the anchor duration pairs were increased from 2 and 8 s to 4 and 16 s. In Experiment 2, the pigeons were trained to discriminate intervals signaled by the absence of houselight illumination (Group Empty) or the presence of houselight illumination (Group Filled). The psychophysical timing functions for these intervals were identical to each other. The results of Experiment 1 indicate that memory mixing is not necessary for detecting a timing difference between empty and filled intervals in pigeons. The results of Experiment 2 suggest that the nature of the stimuli that signal the empty and filled intervals impacts how pigeons judge the durations of empty and filled intervals. 相似文献
16.
Niina Junttila Marija Vauras Eero Laakkonen 《European Journal of Psychology of Education - EJPE》2007,22(1):41-61
A latent variable structural model was constructed to test the relations among mothers’ and fathers’ parenting self-efficacy
(PSE), their loneliness, and their child’s peer-evaluated social competence, self-evaluated loneliness, teacher-evaluated
motivational orientation, and academic skills. In order to do this, first the Self-Efficacy for Parenting Tasks Index (Coleman
& Karraker, 2000) was applied to a sample of mothers (n=876) and fathers (n=696) to test the relevance of these parenting
task categories to Finnish mothers and fathers. The results of the latent variable structural model indicated a strong relationship
between both mothers’ and fathers’ loneliness and their PSE, consisting of Nurturance, Discipline, Recreation, and Participation
factors. Moreover, there was a modest relationship between parents’ PSE and their child’s social competence and consequently
between social competence and child’s loneliness. The relationship between PSE and child’s academic achievement were mediated
via child’s social competence. 相似文献
17.
为了了解深圳市食品安全状况，有目的地进行管理，确保食品消费安全，采用购买方式对全市超市、农贸市场、餐馆酒楼和集体食堂待销售或待烹饪的畜肉类食品，如猪肉、牛肉和猪肝，及禽肉类食品等进行抽样检查，按照国家、行业和地方标准评价并计算抽查结果的合格率。结果显示，全市畜肉类食品抽查平均合格率为79．4％，其中猪肉合格率为95，0％，牛肉合格率为83．3％，猪肝合格率为60．0％，不同畜肉品种合格率比较有较显著性差异（p〈0，001）：全市禽肉类食品抽查平均合格率为63，3％，其中鸡肉合格率为83．3％，鸭肉合格率为39，2％，鸡肉与鸭肉合格率比较有极显著性差异（p〈0.001）：超市、农贸市场、餐馆酒楼和集体食堂4个不同抽样点的畜、禽肉合格率比较无显著性差异（p〉0.05）。深圳市肉类食品安全状况总体良好，但仍存在不安全因素，提示政府卫生监管部门仍需加大对食品安全监管力度。 相似文献
18.
Concern with university rankings have become widespread throughout post-secondary education (PSE), fuelled in part by administrative concerns that demotions down the rank ladder will produce negative institutional outcomes. There is reason to believe, however, that ranking ‘effects’ may be partially muted in Canadian PSE due to the (1) national system’s flatter hierarchical structure and (2) the generally inconsistent findings produced by domestic research on rankings. Through this study, we provide a qualitative analysis of how rankings shaped the institutional selection processes of 90 undergraduate students across three universities in southern Ontario, Canada. Our data indicate that these students rarely consulted ranking publications, relying instead on reputational information available through their informal networks (e.g. peers, family). We theorise that the unique structural characteristics of Canadian PSE minimise the influence of rankings within this jurisdiction, and discuss the practical implications of this finding for both scholars and administrators. 相似文献
19.
Henry Tam 《Pastoral Care in Education》2013,31(3):28-31
Though the term ‘PSE’ is used in most secondary schools, it refers to a wide variety of programmes and practices. This is in part inevitable but the situation has been exacerbated by PSE’s diverse origins and lack of clarity regarding its relationship to the National Curriculum. Having discussed the expectations of PSE in relation to social issues and the ‘anxieties, sensitivities and controversy’ that underlie this, the writer goes on to describe a piece of research which sought to survey a number of aspects of PSE nationally. The picture of existing practice, issues and problems of PSE in secondary schools is an illuminating one and provides a clear picture of current practice. 相似文献
20.
Amy L. Cook 《International Journal for Educational and Vocational Guidance》2017,17(3):311-328
Transition from high school to postsecondary education (PSE) and employment can be challenging for all youth, and particularly for youth with intellectual disability (ID). Promoting equity and access to PSE for students with ID is a social justice mandate, and high school counselors are uniquely positioned to assist youth with ID in accessing appropriate PSE options. This article describes how high school counselors can effectively support the postsecondary transition needs of students with ID through applying a framework of advocacy and social justice, using the Multicultural and Social Justice Counseling Competencies. 相似文献