Students as Researchers: An Inclined-Plane Activity

1995 ◽  
Vol 1 (7) ◽  
pp. 532-535
Author(s):  
Thomas G. Edwards
Keyword(s):  
Young Children ◽  
Logical Thinking ◽  
Jean Piaget ◽  
Inclined Plane ◽  
Series Of Experiments ◽  
Rolling Balls ◽  
The Relationship

A number of years ago in geneva, switzerland, Barbel Inhelder and Jean Piaget (1958) conducted a series of experiments to study the development of logical thinking in young children. One of those experiments involved rolling balls of different masses down inclines of varying heights. The object was to see if young children could make appropriate inferences regarding the relationship among the variables in the problem.

Parental Decision-Making for Surgery and Anesthesia in Young Children

2021 ◽  
pp. 019394592110216
Author(s):  
Audrey Rosenblatt ◽  
Michael Kremer ◽  
Olimpia Paun ◽  
Barbara Swanson ◽  
Rebekah Hamilton ◽  
...  
Keyword(s):  
Health Care ◽  
Decision Making ◽  
Young Children ◽  
Cognitive Processing ◽  
Emotional Processing ◽  
Theory Analysis ◽  
Parental Decision ◽  
Parental Decision Making ◽  
Health Care Context ◽  
The Relationship

Millions of young children undergo surgery and anesthesia each year, yet there is a lack of scientific consensus about the safety of anesthesia exposure for the developing brain. Also poorly understood is parental anesthesia-related decision-making and how neurotoxicity information influences their choices. The theoretical model of parental decision-making generated in this research explicates this process. Interviews with 24 mothers yielded a theoretical framework based on their narratives developed using a qualitative grounded theory analysis. Five major themes emerged from these interviews: emotional processing, cognitive processing, relationships as resources, the mother/child dyad, and the health care context. Mothers described a non-linear, iterative process; they moved fluidly through emotional and cognitive processing supported by relationships as resources and influenced by the health care context. A key element was the subtheme of the medical translator, an individual who provided context and information. The mother/child dyad grounded the model in the relationship with the child.

The role of production practice in lexical and phonological development – a commentary on Stoel-Gammon's ‘Relationships between lexical and phonological development in young children’*

2010 ◽  
Vol 38 (1) ◽  
pp. 41-45 ◽  
Author(s):  
MARILYN VIHMAN ◽  
TAMAR KEREN-PORTNOY
Keyword(s):  
Individual Differences ◽  
Young Children ◽  
Current Work ◽  
Phonological Development ◽  
Phonological Learning ◽  
Production Practice ◽  
The Relationship

Carol Stoel-Gammon has made a real contribution in bringing together two fields that are not generally jointly addressed. Like Stoel-Gammon, we have long focused on individual differences in phonological development (e.g. Vihman, Ferguson & Elbert, 1986; Vihman, Boysson-Bardies, Durand & Sundberg, 1994; Keren-Portnoy, Majorano & Vihman, 2008). And like her, we have been closely concerned with the relationship between lexical and phonological learning. Accordingly, we will focus our discussion on two areas covered by Stoel-Gammon (this issue) on which our current work may shed some additional light.

Anticipating Sin in Medieval Society

2017 ◽  
Author(s):  
Erin Vanessia Abraham
Keyword(s):  
Young Children ◽  
Sexual Relationships ◽  
Medieval History ◽  
Early Medieval ◽  
Social Phenomena ◽  
Moral Accountability ◽  
Multiple Contexts ◽  
Wide Range ◽  
The Relationship

Composed between the sixth and ninth centuries, penitentials were little books of penance that address a wide range of human fallibility. But they are far more than mere registers of sin and penance: rather, by revealing the multiple contexts in which their authors anticipated various sins, they reveal much about the ways those authors and, presumably, their audiences understood a variety of social phenomena. Offering new, more accurate translations of the penitentials than what has previously been available, this book delves into the potentialities addressed in these manuals for clues about less tangible aspects of early medieval history, including the innocence and vulnerability of young children and the relationship between speech and culpability; the links between puberty, autonomy, and moral accountability; early medieval efforts to regulate sexual relationships; and much more.

Experimental Investigation on Rotary Punching by the Compression of Polyurethane Pad

2014 ◽  
Vol 941-944 ◽  
pp. 1802-1807 ◽  
Author(s):  
Qian Liu ◽  
Jing Tao Han ◽  
Jing Liu ◽  
Xiao Xiong Wang
Keyword(s):  
Penetration Depth ◽  
Process Parameters ◽  
High Load ◽  
Large Area ◽  
Bear Capacity ◽  
Hole Edge ◽  
Quality Degradation ◽  
Series Of Experiments ◽  
Blanking Process ◽  
The Relationship

Rotary punching is a sheet metal blanking process which utilizes shearing tools fixed to a pair of rollers. The polyurethane pad is adopted as the die instead of rigid mold because it has the advantages of wide hardness range and high load-bear capacity. Due to the application of polyurethane pad, the surrounding region adjacent to the pierced hole will occur to plastically deform and deflect, which greatly differs from that in the conventional blanking. In this paper, the effects of blank material and thickness, polyurethane hardness, punch penetration depth on deformation behavior were mathematically analyzed and modeled, and then a series of experiments through varying process parameters were conducted to validate the relationship between process parameters and product quality. The degree of sample deflection was exactly measured by scanning electron microscope (SEM). The results show that the deformed area varies with different blank elongations and increases with increasing blank thickness for a given material. When polyurethane pad with low hardness level is employed, it results in large area deformation and quality degradation. Moreover, the deflection degree around the hole edge becomes more severe along with punch penetration, but the penetration depth along blank thickness is not in proportion to the amount of punch advancement.

Sign in / Sign up

Export Citation Format

Share Document