Hywel
The Oxford Companion to British History
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2002
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© The Oxford Companion to British History 2002, originally published by Oxford University Press 2002. (Hide copyright information)
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Hywel (d. 949/50), king of much of Wales (
c.904–49/50), known as Hywel Dda (‘the Good’). The grandson of
Rhodri Mawr, king of
Gwynedd, he and his brother inherited
Seisyllwg from their father Cadell. After his brother died (920), he became sole ruler. He extended his authority into
Dyfed c.904, when he married Elen, probably the daughter of its last king; Gwynedd and
Powys fell into his grasp when their king was killed by the English in 942. Faced with Viking threats, Hywel acknowledged the English kings
Edward the Elder (918) and
Athelstan (927) as his overlords; he visited their courts, witnessed their charters, and called his son Edwin. Like King
Alfred he visited Rome (928), and Alfred's example may have inspired the codification of Welsh law which tradition attributes to Hywel. The earliest surviving texts of ‘The Laws of Hywel Dda’ date from the early 13th cent., but parts seem older and may have been codified by Hywel. A silver penny inscribed
Rex Houel is said to have been minted by him; though if true, it would have been minted at Chester rather than in Wales. His dominion disintegrated after his death, but Hywel's reputation as ‘the head and glory of all the Britons’ flourished and in the early 12th cent. he was described as ‘the Good’.
Ralph Alan Griffiths
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Threonine is catabolized by L-threonine 3-dehydrogenase and threonine dehydratase in hepatocytes from domestic cats (Felis domestica)
Magazine article from: The Journal of Nutrition; 9/1/1996; ; 700+ words
; ...ABSTRACT Isolated hepatocytes were used to study threonine catabolism in kittens, and dietary threonine and crude protein were varied to study enzyme...kittens which had been fed diets containing threonine at 4 or 8 g/kg of diet with either 200...
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Threonine may improve performance of toms fed low-protein diets.
Magazine article from: Feedstuffs; 6/7/1999; ; 700+ words
; ...Minnesota Turkey Growers Assn., examined threonine requirements for market toms. The report...methionine are in "common use" now and threonine is commercially available as well. The...previous studies have indicated that threonine is the third limiting amino acid, after...
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Threonine requirement of neonatal piglets receiving total parenteral nutrition is considerably lower than that of piglets receiving an identical diet intragastrically
Magazine article from: The Journal of Nutrition; 10/1/1998; ; 700+ words
; Threonine Requirement of Neonatal Piglets Receiving...need to be determined. The parenteral threonine requirement was determined in 3-d...examining the effect of varying dietary threonine intakes [0.05-0.6 g/(kg d...
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Threonine Utilization Is High in the Intestine of Piglets1,2
Magazine article from: The Journal of Nutrition; 4/1/2005; ; 700+ words
; ABSTRACT The whole-body threonine requirement in parenterally fed piglets is substantially...nutrition induces intestinal processes in demand of threonine. We hypothesized that the percentage of threonine utilization for oxidation and intestinal protein...
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Threonine Utilization for Synthesis of Acute Phase Proteins, Intestinal Proteins, and Mucins Is Increased during Sepsis in Rats1
Magazine article from: The Journal of Nutrition; 7/1/2007; ; 700+ words
; Abstract We hypothesized that the dietary threonine demand for the anabolic response may be increased...13^C]valine or L-[U-^sup 13^C]threonine, we measured valine and threonine utilization for syntheses of plasma proteins...
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Added threonine may sustain growth in low-protein diets.(Nutrition And Health/Poultry)
Magazine article from: Feedstuffs; 9/1/2003; ; 700+ words
; ...nutritionists the opportunity to utilize L-threonine while maintaining performance with cheaper...functions that have been identified for threonine are those associated with protein synthesis...latter is perhaps where most dietary threonine is targeted because the microcomponents...
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L-threonine use in diets can lower total protein, costs.(Nutrition And Health/Poultry)
Magazine article from: Feedstuffs; 1/5/2004; ; 700+ words
; ...lowered-protein broiler diets with L-threonine resulted in similar performance, body...Financial returns were greater for the L-threonine-supplemented diets. In one of the...Level of poultry meal was fixed, and L-threonine was allowed to least-cost into the...
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Luminal Threonine Concentration Acutely Affects Intestinal Mucosal Protein and Mucin Synthesis in Piglets1-3
Magazine article from: The Journal of Nutrition; 7/1/2008; ; 700+ words
; ...mucin synthesis is sensitive to dietary threonine supply, which suggests that the gut's requirement for threonine may comprise a significant proportion...effects of varying luminal availability of threonine on intestinal protein and mucin syntheses...
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Dietary Threonine Restriction Specifically Reduces Intestinal Mucin Synthesis in Rats
Magazine article from: The Journal of Nutrition; 3/1/2005; ; 700+ words
; ...sensitive than total proteins to dietary threonine intake. For 14 d, male Sprague-Dawley...150% (group 150) of the theoretical threonine requirement for growth. All groups were...indicate that restriction of dietary threonine significantly and specifically impairs...
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Lack of threonine may reduce performance of finishing broilers.
Magazine article from: Feedstuffs; 3/8/1999; ; 700+ words
; Marginal deficiencies of threonine, the third limiting amino acid in...have been done that investigated threonine needs of finishing broilers - and...kcal/kg of diet should receive threonine at 0.68% of the diet, he said...
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threonine
Book article from: The Columbia Encyclopedia, Sixth Edition
threonine , organic compound, one of the 22...mg per lb) of body weight. Although threonine participates in many reactions in bacteria...the catalytic functions of any enzyme. Threonine was isolated from the protein fibrin...
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Post-translational Control
Book article from: Genetics
...usually to the side chain hydroxyl (-OH) of serine, threonine, or tyrosine. This modification results from the action...asparagine or to the hydroxyl of the amino acids serine or threonine. The structure of these carbohydrates can be complex and...
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Glycoprotein
Book article from: Chemistry: Foundations and Applications
...is followed by some other amino acid and then a serine or threonine residue (-Asn-Xaa-Ser/Thr). Carbohydrate is not...of sugar residues to the hydroxyl side chain of serine or threonine residues in polypeptides in the Golgi apparatus. Unlike N...
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Amino Acids
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
...acids are tryptophan, lysine, methionine , phenylalaine, threonine, valine, leucine, and isoleucine. The "non –...pains; acts as an antidepressant; and improves memory. Threonine. Makes up a substantial portion of the collagen, elastin...
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Amino Acid Chemistry
Book article from: World of Microbiology and Immunology
...methionine CH3SCH2CH2CH(NH2)COOH, phenylalanine C6H5CH2CH(CH2)COOH, proline C4H8NCOOH, serine HOCH2CH(NH2)COOH, threonine CH3CH(OH)CH(NH2)COOH, cysteine HSCH2CH(NH2)COOH, asparagine, glutamine H2NC(O)(CH2)2CH(NH2)COOH...
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