The Transition to Reaching: Mapping Intention and Intrinsic Dynamics   总被引：9，自引：0，他引：9  

Esther Thelen  Daniela Corbetta  Kathi Kamm  John P. Spencer  Klaus Schneider  Ronald F. Zernicke 《Child development》1993,64(4):1058-1098

The onset of directed reaching demarks the emergence of a qualitatively new skill. In this study we asked how intentional reaching arises from infants' ongoing, intrinsic movement dynamics, and how first reaches become successively adapted to the task. We observed 4 infants weekly in a standard reaching task and identified the week of first arm-extended reach, and the 2 weeks before and after onset. The infants first reached at ages ranging from 12 to 22 weeks, and they used different strategies to get the toy. 2 infants, whose spontaneous movements were large and vigorous, damped down their fast, forceful movements. The 2 quieter infants generated faster and more energetic movements to lift their arms. The infants modulated reaches in task-appropriate ways in the weeks following onset. Reaching emerges when infants can intentionally adjust the force and compliance of the arm, often using muscle coactivation. These results suggest that the infant central nervous system does not contain programs that detail hand trajectory, joint coordination, and muscle activation patterns. Rather, these patterns are the consequences of the natural dynamics of the system and the active exploration of the match between those dynamics and the task.  相似文献   

Fish Oil Supplementation in Pregnancy and Neurodevelopment in Childhood—A Randomized Clinical Trial     

Laerke Sass  Elín Bjarnadóttir  Jakob Stokholm  Bo Chawes  Rebecca K. Vinding  Anna-Rosa C. Mora-Jensen  Jonathan Thorsen  Sarah Noergaard  Bjørn H. Ebdrup  Jens R.M. Jepsen  Birgitte Fagerlund  Klaus Bønnelykke  Lotte Lauritzen  Hans Bisgaard 《Child development》2021,92(4):1624-1635

A double-blind randomized controlled trial of n-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) supplementation or matching placebo during third trimester of pregnancy was conducted within the COPSAC₂₀₁₀ mother-child cohort consisting of 736 women and their children. The objective was to determine if maternal n-3 LCPUFA pregnancy supplementation affects offspring neurodevelopment until 6 years. Neurodevelopment was evaluated in 654 children assessing age of motor milestone achievement, language development, cognitive development, general neurodevelopment, and emotional and behavioral problems. Maternal n-3 LCPUFA supplementation during pregnancy improved early language development and reduced the impact of emotional and behavioral problems. The n-3 LCPUFA supplementation was in boys associated with the earlier achievement of gross motor milestones, improved cognitive development, and a reduced impact of emotional and behavioral problems.  相似文献   

Informational capital and the transition to university: First‐in‐family students' experiences in Austrian higher education     

Franziska Lessky  Erna Nairz‐Wirth  Klaus Feldmann 《European Journal of Education》2021,56(1):27-40

The agenda for widening participation in higher education has led to increasing numbers of students with a broader range of education and family backgrounds. However, transitioning to the university landscape remains a highly complex negotiation process, especially for first‐in‐family students, who cannot draw on previous experience from higher education in their families. Gaining access to informational capital—a combination of cultural and social capital—plays a crucial role in managing education transitions. We draw on rich empirical data obtained from 26 autobiographical narrative interviews with first‐in‐family university students in Austria to investigate how transitions to university are affected by informational capital. We also explore how access to informational capital was influenced by (1) institutional practices, such as initiatives to support students, especially first‐year students; and (2) cultural fit—the extent to which a student's cultural capital corresponded with the dominant cultural capital in the field of their chosen discipline or higher education establishment. Our findings show that gaining access to informational capital was strongly affected by the institutional practices at universities within the different disciplines, thus highlighting the importance of higher education institutions in supporting their students during transition processes. We conclude with policy implications for how higher education institutions can assist first‐in‐family students to succeed at university.  相似文献   

The measurement of goal attainment of governmental R&D support     

Klaus Brokhoff 《Research Policy》1983,12(3):171-182

Efficiency measurement of governmental R&D subsidies is a complicated task. The suggestion is made to derive the subsidization objectives from the programs themselves along seven dimensions. If completely defined and if properly operationalized, these could be used as a basis for efficiency measurement. Various levels of measurement and the related problems are reviewed. As information on a program and its acceptance are of importance for governmental planning, the development of diffusion models for this special purpose is suggested. A most simple version is given to start discussion. The ideas developed are illustrated by reference to empirical research on two related subsidization programs in the Federal Republic of Germany.  相似文献   

Ecosystems and Biodiversity Research     

Klaus Hahlbrock 《中国科学院院刊(英文版)》2004,18(2):53-54

The common goals and the almost perfect complement of the initiatives taken in parallel at Kunming and at several Max Planck sites could serve as valuable starting points for further promoting the CAS/MPS partnership in all matching areas of ecological research.  相似文献   

Streber als Leistungsverweigerer?     

Anna-Katharina Pelkner  Klaus Boehnke 《Zeitschrift für Erziehungswissenschaft》2003,6(1):106-125

Zusammenfassung Wer Schule in Deutschland und in Nordamerika vergleichend beobachtet, dem fallen bald für den Alltag von Schülerinnen und Schülern relevante Unterschiede auf, die in der erziehungswissen-schaftlichen Forschung bisher kaum bearbeitet wurden: Hierzu geh?rt — neben der unterschie dlichen Bewertung des in Nordamerika verp?nten, in Deutschland aber fast zum guten Ton geh?renden ‘cheating’/Schummelns — die Bewertung guter Schulleistungen durch Peers. W?hrend gute Leistungen in Nordamerika unter Peers hoch im Kurs zu stehen scheinen, werden sie in Deutschland — insbesondere in der Sekundarstufe I — oft mit dem Strebervorwurf belegt. Der hier vorgelegte Text wendet sich der Frage zu, ob der Strebervorwurf Auswirkungen auf tats?chliche Schulleistungen im Bereich der Mathematik hat. Er vertritt die These, dass befürchtete negative Peer-Sanktionen als Folge besonders guter Leistungen in Mathematik bei guten Schülern und insbesondere bei leistungsstarken M?dchen die Aussch?pfung des vorhandenen Leistungspotentials begrenzt und auf Dauer auch die Leistungsf?higkeit reduziert. Vorgestellt wird zum einen die Forschungsidee eines im DFG-Schwerpunktprogramm „Bildungsqualit?t von Schule“ gef?rderten Projekts, zum anderen erstes empirisches Material aus zwei Vorerhebungen des Projekts, mit dem die empirische Plausibilit?t der Forschungsidee untermauert werden soll.

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Summary Do Nerds Refuse Achievement? Project idea and first data from a study on mathematical achievement Whoever compares schooling in Germany and North America, will soon come across differences with everyday relevance for the school life of students that have rarely been addressed in educational research: Besides the different attitudes towards cheating — being a complete taboo in North America, but a lesser sin in Germany — there is the attitude towards high achievement by peers. Whereas in North America high achievement seems highly valued, high-achieving students in Germany are often accused of being nerds or teacher’s pets, particularly in grades 7–10. The present article deals with the extent to which the nerd accusation has consequences for real achievement in mathematics. The hypothesis is formulated that fear of negative sanctions by peers, as a consequence of being particularly good in math, encourages high achievers to reduce their efforts. Particularly among high-achieving grils, this is presumed to even affect the objective achievement potential in math in the long run. Firstly, the research idea for a study funded by the German Research Council (DFG) in the framework of its focal program on “Quality of Education in Schools” is presented. Secondly, first empirical material from two pilot studies is presented in order to underscore the plausibility of the research idea.

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Increased plasma vaspin concentration in patients with sepsis: an exploratory examination     

Michael C. Motal  Daniel A. Klaus  Diana Lebherz-Eichinger  Bianca Tudor  Thomas Hamp  Marion Wiegele  Rudolf Seemann  Claus G. Krenn  Georg A. Roth 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(1):90-96

Introduction

Vaspin (visceral adipose tissue-derived serpin) was first described as an insulin-sensitizing adipose tissue hormone. Recently its anti-inflammatory function has been demonstrated. Since no appropriate data is available yet, we sought to investigate the plasma concentrations of vaspin in sepsis.

Materials and methods

57 patients in intensive care, fulfilling the ACCP/SCCM criteria for sepsis, were prospectively included in our exploratory study. The control group consisted of 48 critically ill patients, receiving intensive care after trauma or major surgery. Patients were matched by age, sex, weight and existence of diabetes before statistical analysis. Blood samples were collected on the day of diagnosis. Vaspin plasma concentrations were measured using a commercially available enzyme-linked immunosorbent assay.

Results

Vaspin concentrations were significantly higher in septic patients compared to the control group (0.3 (0.1-0.4) ng/mL vs. 0.1 (0.0-0.3) ng/mL, respectively; P < 0.001). Vaspin concentration showed weak positive correlation with concentration of C-reactive protein (CRP) (r = 0.31, P = 0.002) as well as with SAPS II (r = 0.34, P = 0.002) and maximum of SOFA (r = 0.39, P < 0.001) scoring systems, as tested for the overall study population.

Conclusion

In the sepsis group, vaspin plasma concentration was about three-fold as high as in the median surgical control group. We demonstrated a weak positive correlation between vaspin and CRP concentration, as well as with two scoring systems commonly used in intensive care settings. Although there seems to be some connection between vaspin and inflammation, its role in human sepsis needs to be evaluated further.Key words: adipocytokine, inflammation, vaspin, CRP, intensive care  相似文献   

The Human Rights Approach to Education in International Organisations     

Klaus Hüfner 《European Journal of Education》2011,46(1):117-126

In this article, the work of three international governmental organisations (IGOs) dealing with human rights will be discussed, namely the United Nations Educational, Scientific and Cultural Organization (UNESCO), the United Nations Children's Fund (UNICEF)¹ and the Council of Europe (CoE). In the first section, the main characteristics of the three IGOs in terms of similarities and differences will be elaborated. Then, their human rights approach to education will be described, dealing with the legal foundations. In the final section, the different strategies of implementation based on both their official mission statements and their present strategy papers will be evaluated under the heading ‘competition vs. cooperation’.  相似文献   

DIFFERENT MODELS IN DESCRIBING,EXPLORING, EXPLAINING AND NURTURING CREATIVITY IN SOCIETY     

Klaus K. Society 《High Ability Studies》1995,6(2):143-159

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The early training project: a seventh-year report   总被引：2，自引：0，他引：2  

S W Gray  R A Klaus 《Child development》1970,41(4):909-924

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