Changes in Wool Low-Sulfur and High-Sulfur Protein Components Following Chemical Defleecing

Marshall, Robert C.

doi:10.1177/004051758105100602

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The multiple components within each family probably fulfil similar roles, and therefore their variable proportions witnessed between members of the same species Gillespie 1983) have no obvious phenotypic effect. The least variable are the low-sulphur and a proportion of the high-sulphur proteins, thought to be essential far the development of the basic fibre structure (Gillespie and Reis 1966;Fraser and MacRae 1980;Mar-shall and Gillespie 1981;Gillespie and Marsha1l1983), while the most profound changes occur in the ultra-high-sulphur and the high-glycine/tyrosine protein families Marshall and Gillespie 1981;Gillespie and Marshall 1983).…”

Section: Variation In Keratin Synthesismentioning

confidence: 99%

Hair Keratin: Composition, Structure and Biogenesis

Powell

Rogers

1986

Biology of the Integument

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Section: Variation In Keratin Synthesismentioning

confidence: 99%

Hair Keratin: Composition, Structure and Biogenesis

Powell

Rogers

1986

Biology of the Integument

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“…The number of employees who benefit from such training is less clear. Secretary of Labor Robert Reich has stated that only 35% of employees get training and that most of these are college graduates (Marshall, 1995).…”

Section: Variations In Organizational Involvement In Training Employeesmentioning

confidence: 99%

A rapidly changing world: Some implications for training systems in the year 2001 and beyond.

Thayer¹

1997

Training for a Rapidly Changing Workplace: Applications of Psychological Research.

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The workforce is aging and becoming increasingly diverse. In this section, I describe these changes and the implications on training. The Workforce Grows OlderThe workforce in the United States will grow more slowly than it has in the past, and the number of young entrants will decrease even more sharply. (Goldstein & Gilliam, 1990) In 1990, 23% of the population was 20 to 29 years old, but that age group will decrease to 18% of the population in the year 2000: The proportion in the 50-to 59-year-old age group is expected to jump from 13% to 17% in 2000 and to 21% in 2010 (Warr, 1994). Thus, the portion of the population from which new employees are typically recruited will decline, and at the same time the number of older workers will increase.As that population shift occurs, there is also a trend toward increased longevity and vitality of older people. Older people are more active physically and mentally, and life-span projections are increasing. As more baby boomers born after World War I1 reach age 60, the Social Security fund is being stretched beyond its limits, and many proposals are being made in the U.S. Congress and elsewhere to revise eligibility standards for receipts of benefits. Some proposals include a postponement of initiation of full benefits from the current age 65 to ages 67, 68, or even 70. Further, Social Security benefits and pensions may not support the 20 to 30 years of retirement that may come with increased longevity, and many older people will prefer to work during what are considered "normal" retirement years. Whereas the traditional age bracket for "older workers" has been 45 to 64 (Charness & Bosman, 1992), these trends forecast an ever-increasing number of active employees in their late 60s and 70s, thus necessitating the definition of "older worker" to encompass those aged 50 to 70+. Training Implications of an Aging WorkforceConsiderable progress has been made in understanding the nature of cognitive and performance changes that occur with age. In an excellent

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“…The three major groups of proteins (low-sulfur, highsulfur, and high-tyrosine) were well separated in different areas of the electrophoretic pattern (demonstrated in Figure la for wool [9]) and within each of these regions were a number of resolved components. The electrophoretic patterns for wool (Figure 1 a) and mohair (Figure 1 b) are similar, as expected from other biochemical studies (see, for example, reference 16), but there were some differences.…”

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confidence: 95%

Possible Identification of Specialty Fibers by Electrophoresis

Marshall

Zahn

Blankenburg

1984

Textile Research Journal

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Here again, one observes that while an increase in air pressure increases stability as observed from the Du Pont test, the test recommended by Wray shows an increase in instability with the increase in air pressure. Wray [2] had earlier reported that increasing air pressure gave a more unstable yam, apparently because a few large loops were more stable than a larger number of small loops. It stands to reason, however, that the degree of entanglement between filaments would increase with the increase in air pressure and this should enhance the structural integrity of the yam. As the increase in air pressure increases the disorientation of the unlooped segments of the filaments in the yam, there is an overall increase in extensibility of the yam with the increase in air pressure. Thus, Wray's method measures as instability which has nothing to do with the stability of loops in an air textured yam.

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Changes in Wool Low-Sulfur and High-Sulfur Protein Components Following Chemical Defleecing

Cited by 5 publications

References 13 publications

Hair Keratin: Composition, Structure and Biogenesis

Hair Keratin: Composition, Structure and Biogenesis

A rapidly changing world: Some implications for training systems in the year 2001 and beyond.

Possible Identification of Specialty Fibers by Electrophoresis

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