Christopher Howell — Spokane, Washington

Howell, Christopher

doi:10.2307/j.ctt4cgn75.35

Cited by 3 publications

(2 citation statements)

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“…Finally, in ninth grade, students participated in more in-depth career exploration activities. 10 From a more contemporary perspective, the approach described here might be considered quite cutting edge. In 2008, Kosine, Steger, and Duncan argued for promoting purposecentered career development in high schools, stating that purpose is not an area that is typically cultivated during career exploration activities.…”

Section: Few Educational Programs Explicitly Teach For Purposementioning

confidence: 99%

Promoting youth purpose: A review of the literature

Koshy

Mariano

2011

New Directions for Youth Development

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This article reviews the research literature on teaching and supporting purpose in adolescence and young adulthood. An extensive search revealed that most studies on youth purpose examine psychological correlates and neglect instructional and social supports. School is an effective context for fostering purpose, yet reported approaches for explicitly instructing for purpose are rare after the early 1990s, reflecting a trend away from a language of purpose as a discrete endeavor in education since at least the 1960s. Furthermore, research on the outcomes of early purpose instruction curricula is not present in empirical journal articles. Nevertheless, a concern for fostering youth purpose has not disappeared from education; rather, it is subsumed under approaches that foster more comprehensive positive student outcomes, such as character, civic engagement, and positive youth development. Key curricular approaches to these outcomes are therefore also reviewed and examined for insights into how purpose can be fostered.

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Section: Few Educational Programs Explicitly Teach For Purposementioning

confidence: 99%

Promoting youth purpose: A review of the literature

Koshy

Mariano

2011

New Directions for Youth Development

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“…The information thereby obtained shows that the processes involved in that reaction are similar to those observed in the generation of trypsin from trypsinogen and affords evidence in favour of the hypothesis which we put forward to elucidate the mechanism of the latter reaction. Incidentally the hypotheses put forward by Howell (3) on the relation of thrombokinase to antifibrin ferment and by Barratt(4) on the time factors involved in the coagulation of blood are considered in the light of the experimental facts detailed.…”

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confidence: 99%

The rate of formation of fibrin ferment from prothrombin by the action of thrombokinase and calcium chloride

Mellanby¹

1917

The Journal of Physiology

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IN 1912 the rate of formation of trypsin from trypsinogen by the action of enterokinase was determined by J. Mellanby and V. J. Woolley(i).This reaction differs from that observed in such ferment actions as the inversion of cane sugar by invertase in so far that the velocity of the change is small at the outset of the reaction but proceeds with a constantly increasing acceleration. This fact has been confirmed by Vernon (2), but the hypothesis which we put forward to account for the mechanism of the change has been a matter of dispute. It became of interest therefore to determine the rate of formation of fibrin ferment from prothrombin by the action of thrombokinase and calcium chloride. The information thereby obtained shows that the processes involved in that reaction are similar to those observed in the generation of trypsin from trypsinogen and affords evidence in favour of the hypothesis which we put forward to elucidate the mechanism of the latter reaction. Incidentally the hypotheses put forward by Howell (3) on the relation of thrombokinase to antifibrin ferment and by Barratt(4) on the time factors involved in the coagulation of blood are considered in the light of the experimental facts detailed.The preparation of fibrinogen, prothrombin and fibrin ferment. Prothrombin can be obtained from bird's blood in a state of comparative purity and in such condition, that, after the addition to it of thrombokinase and calcium chloride, a fibrin ferment solution of extraordinary potency may be obtained. Bird's blood was used in the experiments since, as was shown by Delezenne(5), such blood if carefully collected shows no tendency to coagulate, and thus constitutes an ideal medium whereby the mechanism of blood coagulation may be studied. No foreign bodies, such as potassium oxalate, sodium chloride, peptone, etc. have been added to it and the stability of the original blood affords an

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Some new results on domains in complex space with non-compact automorphism group

Kim

Krantz

2003

Journal of Mathematical Analysis and Applications

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Christopher Howell — Spokane, Washington

Cited by 3 publications

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Promoting youth purpose: A review of the literature

Promoting youth purpose: A review of the literature

The rate of formation of fibrin ferment from prothrombin by the action of thrombokinase and calcium chloride

Some new results on domains in complex space with non-compact automorphism group

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