浅谈我国的科技创新团队建设

随着知识经济的出现,科技和创新日益受到人们的关注。知识经济是人才的创新经济,是人才协作的经济,是人才高效率的经济。科技创新团队有着十分重要的作用,创新型中国呼唤科技创新团队的建设。文章重点谈我国科技创新团队建设的重要性和必要性以及建设的具体要求和措施。     

高校学生工作改革创新的思考

分析了当前高校学生工作改革创新面临的国内外形势,明确了把握高校学生工作规律,积极探索高校学生工作改革的新途径的紧迫性和必要性,提出了做好新时期高校学生工作的思路和措施,旨在紧密联系学生实际,创新工作方式和内容,充分发掘大学生的潜能,培养他们的自主创新能力和实践精神,努力探索出一条适应时代发展、满足学生成长要求的学生工作新路。     

Does surprise enhance infant memory? Assessing the impact of the encoding context on subsequent object recognition

A discrepancy between what was predicted and what is observed has been linked to increased looking times, changes in brain electrical activity, and increased pupil dilation in infants. These processes associated with heightened attention and readiness to learn might enhance the encoding and memory consolidation of the surprising object, as suggested by both the infant and the adult literature. We therefore investigated whether the presence of surprise during the encoding context enhances subsequent encoding and recognition memory processes for the items that violated infants' expectations. Seventeen-month-olds viewed 20 familiar objects, half of which were labeled correctly, while the other half were mislabeled. Subsequently, infants were presented with a silent recognition memory test where the previously labeled objects appeared along with new images. Pupil dilation was measured, with more dilated pupils indicating (1) surprise during those labeling events where the item was mislabeled and (2) successful retrieval processes during the memory test. Infants responded with more pupil dilation to mislabeling compared to correct labeling. Importantly, despite the presence of a surprise response during mislabeling, infants only differentiated between the previously seen and unseen items at the memory test, offering no evidence that surprise had facilitated the encoding of the mislabeled items.     

The Common Assessment Framework form 9 years on: a creative process

Legislation within England states that local authorities should provide services for all those families in need. However, research has identified that regardless of the introduction of strategies to identify need and enhance family support, ongoing barriers to services adhere. Taking a social constructionist approach, this study explored professionals' experiences of the use of the Common Assessment Framework form. Data were collected in four different local authorities in two phases. Forty‐one professionals from a variety of agencies took part in semi‐structured interviews. Data were analyzed thematically. Findings demonstrate that the professionals experienced difficulties in working through the Common Assessment Framework process, for example, in completing the form and engaging families. This situation led to the more experienced and knowledgeable professionals utilising creative ways to successfully navigate the ‘referral process’. Such creative working practices included the terminology used to complete the form and how the process was ‘sold’ to parents, so that they could be in a better position to engage parents and complete the Common Assessment Framework form. Because of this, more experienced professionals seem to be able to accelerate the referral process in order to access much needed support services for children and young people.     

Piecewise FARIMA models for long-memory time series

We consider the problem of modelling a long-memory time series using piecewise fractional autoregressive integrated moving average processes. The number as well as the locations of structural break points (BPs) and the parameters of each regime are assumed to be unknown. A four-step procedure is proposed to find out the BPs and to estimate the parameters of each regime. Its effectiveness is shown by Monte Carlo simulations and an application to real traffic data modelling is considered.     

Child‐caregiver Attachment Representations in a Non‐Western Context: The Feasibility and Cultural Equivalence of Story Stems in Urban Ghana

Story stem measures are an increasingly popular method for assessing the attachment representations of young children, but little is known of their cross‐cultural applicability. This study aimed to characterise the attachment representations in 73 five‐ to eight‐year‐old children in urban Ghana, West Africa, using the Manchester Child Attachment Story Task (MCAST) to test its feasibility, psychometric characteristics and concurrent associations with caregiver‐ and teacher‐rated child behaviour, and to conduct a qualitative thematic analysis of methodological observations. Among the classifiable cases (92 percent), all attachment classifications were observed, yielding a higher rate of secure attachment than in European samples. Inter‐rater reliability, internal consistency, and internal structure were reasonable and largely similar to European studies, although one structural difference was the separation of ‘child assuagement of distress’ from other secure‐related items. MCAST narratives were associated with teacher‐ and caregiver‐rated hyperactivity, but internal consistency was low in most Strengths and Difficulties Questionnaire scales. Possible culturally‐sensitive explanations for our psychometric and qualitative findings are discussed. Overall, story stems are a promising tool for accessing attachment representations in non‐Western samples, although modifications are likely to improve cross‐cultural equivalence when applied to non‐Western cultures. Further investigation is needed to link MCAST outcomes to parenting and socio‐emotional development.     

The social as signal in the body of chromatin

Human social interactions and material cultures are increasingly understood as biologically consequent environmental signals. Within the explanatory framework of epigenetics, such signals become biologically inscribed when transduced into bodies as persistent patterns of molecular conformation. In the life sciences, persistence of the social as the biological is understood as establishment of gene expression potentials, physiological changes, or epigenetic memories. How did the social become interchangeable with the environmental? When did both become scientifically graspable as signals? This article recounts the history of how hormone biologists came to think in terms of signal transduction in the late 1960s. This cybernetic legacy is important for understanding the ‘environmental turn’ of epigenetics. To understand the social as signal in the present moment – a post-cybernetic rather than post-genomic moment – the theory of the signal must itself be excavated and analysed.     

Spectres of Afrikanerdom in contemporary commodity culture: history,memory, and imagining the self

The centrality of nostalgia in contemporary Afrikaner culture is contingent on the gradual demotion of Afrikaner history in post-apartheid South Africa. This article, however, departs from the view that such recapitulations of the past are necessarily always intransigent. Casting Afrikaner nostalgia as manifesting dissatisfaction with the government is ultimately not representative of the diverse spectres of Afrikanerdom that haunt selected commodity items, such as the t-shirts discussed in this article. If we allow for a melange of narratives and interpretations to emerge, as a postmodern view of history would encourage, it enables us to challenge a one-dimensional view of Afrikaner nostalgia. This article therefore posits that specific nostalgic imaginings of Afrikanerdom are decidedly self-reflexive and progressive. Instead of attempting to reify the past (together with irrecoverable positions of power), some of the discourses addressed in this article reveal Afrikanerdom’s capacities for appropriation, aestheticisation and commodification, which open up new possibilities for thinking about Afrikaner subjectivity in post-apartheid South Africa.     

Local asymptotic normality for long-memory process with strong mixing noises

Abstract

We will establish the local asymptotic normality (LAN) for fractional autoregressive long memory model in the case of strong mixing noises. This opens the way in future work to construct an adaptive estimator and construct optimal tests for the parameters. To check the feasibility and validity of our theoretical results a simulations study is considered.     

长时工作记忆的模块优化机制——基于理想认知模型的分析

记忆术是在新异信息与固有信息间强制建立一种人为意义联系的记忆策略。记忆术之所以能够有效提升记忆品质，是因为它能帮助构建稳定的理想认知模型，而理想化认知模型可被用作完整的记忆组块被个体提取到工作记忆中。组块中处于个体意识中央的那部分信息作为提取线索，将组块内的其它信息牵引到长时工作记忆中，这一方面增强了信息的可得性，另一方面还有效克服了短时工作记忆的容量限制。总之，记忆术通过理想认知模型优化了长时工作记忆，从而改善了记忆效率，提升了记忆品质。