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1990

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Articles 1681 - 1710 of 1754

Full-Text Articles in Life Sciences

Structural Lumber From Aspen: Using The Saw-Dry-Rip (Sdr) Process, Robert R. Maeglin Jan 1990

Structural Lumber From Aspen: Using The Saw-Dry-Rip (Sdr) Process, Robert R. Maeglin

Aspen Bibliography

No abstract provided.


Development And Application Of A State-Wide Empirical Growth And Yield Model For Natural Aspen Stands, D.K. Walters, A.R. Ak Jan 1990

Development And Application Of A State-Wide Empirical Growth And Yield Model For Natural Aspen Stands, D.K. Walters, A.R. Ak

Aspen Bibliography

No abstract provided.


Management Of Aspen In The Central Rocky Mountains: An Application Of Multiple Use Silviculture, Wayne D. Shepperd Jan 1990

Management Of Aspen In The Central Rocky Mountains: An Application Of Multiple Use Silviculture, Wayne D. Shepperd

Aspen Bibliography

No abstract provided.


Opportunities For Organosolv Pulping Of Aspen, J.H. Lora Jan 1990

Opportunities For Organosolv Pulping Of Aspen, J.H. Lora

Aspen Bibliography

No abstract provided.


Aspen Utilization In The Northern United States, D.I. Maass, L.C. Irland, S.D. Salisbury Jan 1990

Aspen Utilization In The Northern United States, D.I. Maass, L.C. Irland, S.D. Salisbury

Aspen Bibliography

Aspen is an important resource to the northern United States and in Quebec and Ontario. Roundwood use for pulp in the Lake States has remained stable at 2 million cords since 1981, while use for flakeboard has increased five-fold. Despite the near doubling of use in this decade, real stumpage prices for aspen have remained stable, and the mill delivered prices have declined. The pulp industry is less cost and supply sensitive than the flakeboard industries. Substitutions of other species will occur when aspen supply declines. Resource decisions in the future will be driven by both markets and politics.


Introduction To Symposium And The Aspen Resource Study, R.D. Adams, J.S. Gephart Jan 1990

Introduction To Symposium And The Aspen Resource Study, R.D. Adams, J.S. Gephart

Aspen Bibliography

No abstract provided.


Antimicrobial Activity Of P-Aminobenzoic Acid And Its Application As A Preservative In Pharmaceutical Products(ฤทธิ์การต้านจุลชีพของพารา- อะมิโนเบนโซอิคแอซิดและ..., Malyn Chulasiri, Michael E. Richards Jan 1990

Antimicrobial Activity Of P-Aminobenzoic Acid And Its Application As A Preservative In Pharmaceutical Products(ฤทธิ์การต้านจุลชีพของพารา- อะมิโนเบนโซอิคแอซิดและ..., Malyn Chulasiri, Michael E. Richards

The Thai Journal of Pharmaceutical Sciences

p-Aminobenzoic acid (PABA) showed inhibitory effect upon Staphylococcus aureus NCTC 10788, Pseudomonas aeruginosa NCTC 6750, Escherichia coli NCTC 8110 and Candida albicans NCPF 3179. Its antimicrobial activity was affected by different solvent system an...


Ranitidine ทำให้เจ็บแน่นหน้าอก, สุกัญญา เจษฎานนท์ Jan 1990

Ranitidine ทำให้เจ็บแน่นหน้าอก, สุกัญญา เจษฎานนท์

The Thai Journal of Pharmaceutical Sciences

หญิงอายุ 45 ปี ไม่เคยมีประวัติเป็นโรคเกี่ยวกับหัวใจมาก่อน เกิดมีอาการเจ็บแน่นหน้าอกถึงสอ...


อาการแพ้-Allergy, สุกัญญา เจษฏานนท์ Jan 1990

อาการแพ้-Allergy, สุกัญญา เจษฏานนท์

The Thai Journal of Pharmaceutical Sciences

บทความนี้กล่าวถึงกลไกและรูปแบบต่างๆ ของการเกิดอาการแพ้ อาการสารที่หลั่งและองค์ประกอบทา...


The Studies Of Durian Rind Extracts As An Aqueous Binder I : Evaluation Of Granule Properties(ศึกษาการใช้สารสกัดจากเปลือกทุเรียน เพื่อเป็นสารยึดเกาะ..., Kaisri Umprayn, Kavee Chanpaparp, Sunanta Pongsamart Jan 1990

The Studies Of Durian Rind Extracts As An Aqueous Binder I : Evaluation Of Granule Properties(ศึกษาการใช้สารสกัดจากเปลือกทุเรียน เพื่อเป็นสารยึดเกาะ..., Kaisri Umprayn, Kavee Chanpaparp, Sunanta Pongsamart

The Thai Journal of Pharmaceutical Sciences

Durian rind extracts, D1 and D1 were evaluated for their binding properties as comparing with commonly used binders such as PVPK 30, corn starch, starch 1500(R), gelatin and Methocel E15 LV(R). They were employed at 1.2 and 4% based on dry basis for both...


ความเข้ากันไม่ได้ระหว่าง Quinolones กับ Penicillins, สุกัญญา เจษฎานนท์ Jan 1990

ความเข้ากันไม่ได้ระหว่าง Quinolones กับ Penicillins, สุกัญญา เจษฎานนท์

The Thai Journal of Pharmaceutical Sciences

เป็นบทความแสดงความเข้ากันไม่ได้ของยาฉีดในกลุ่ม fluorinated quinolones กับพวกเพนิซิลิน ทั้งใน normal saline, dextrose 5% ...


A Survey Of The Harvesting Histories Of Some Poorly Regenerated Aspen Stands In Northern Minnesota, P.C. Bates, C.R. Blinn, A.A. Alm Jan 1990

A Survey Of The Harvesting Histories Of Some Poorly Regenerated Aspen Stands In Northern Minnesota, P.C. Bates, C.R. Blinn, A.A. Alm

Aspen Bibliography

No abstract provided.


Sorting Aspen Bolts And Drying Aspen Flitches For Sdr, R.S. Boone Jan 1990

Sorting Aspen Bolts And Drying Aspen Flitches For Sdr, R.S. Boone

Aspen Bibliography

Log sorting is necessary when processing aspen saw-dry-rip (SDR) to select optimum log diameter and to minimize number of logs with dark-colored centers. Wetwood, which is difficult to dry, is commonly associated with these dark centers. SDR processing involves drying 7/4- to 8/4-thick live-sawn flitches. Drying the flitch and then sawing studs produces straighter studs than sawing first and drying in stud form. High-temperature kiln drying (230 o F to 240 o F) has given good results with several species (such as, basswood and yellow-poplar). For species likely to contain wetwood (aspen, cottonwood, willow), high-temperature drying is not recommended. A …


Preparing And Improving Garden Soil, Utah State University Jan 1990

Preparing And Improving Garden Soil, Utah State University

All Current Publications

No abstract provided.


The Quest For Aspen Management In Eastern Canada, D.H. Weingartner, R. Doucet Jan 1990

The Quest For Aspen Management In Eastern Canada, D.H. Weingartner, R. Doucet

Aspen Bibliography

No abstract provided.


The Lake States' Aspen Resource Revisited: Mid-1960s-1987, J.S. Spencer Jr., E.C. Leatherberry, N.P. Kingsley Jan 1990

The Lake States' Aspen Resource Revisited: Mid-1960s-1987, J.S. Spencer Jr., E.C. Leatherberry, N.P. Kingsley

Aspen Bibliography

No abstract provided.


Hybrid Popular Productivity And Suitability For The Forest Tent Caterpillar: A Framework Of Evaluation, D.J. Robison, K.F. Raffa Jan 1990

Hybrid Popular Productivity And Suitability For The Forest Tent Caterpillar: A Framework Of Evaluation, D.J. Robison, K.F. Raffa

Aspen Bibliography

Fifteen hybrid poplar, Populus spp., clones were evaluated for growth, tolerance to defoliation, and suitability for the forest tent caterpillar, Malacosoma disstria. Poplar clones were ranked according to their suitability for M. disstria, as indicated by behavioral and developmental bioassays. Patterns of poplar growth characteristics and M. disstria preference and performance among the 15 clones were used to construct a productivity - suitability matrix. This matrix provides a framework for evaluating insect pest resistance in selected poplar clones and for considering clonal contributions to poplar-M. disstria interactions. The matrix concept and design incorporates both biologically and …


An Aspen Forest Management Advisory System, H.M. Rauscher, D.A. Perala, G.E. Host Jan 1990

An Aspen Forest Management Advisory System, H.M. Rauscher, D.A. Perala, G.E. Host

Aspen Bibliography

An expert system program is described that advises the user on silvicultural treatments for aspen (Populus tremuloides Michx., P. grandidentata Michx.) stands of given age, site quality, and stocking.


Silviculture And Management Of Aspen In Canada: The Western Canada Scene, S. Navratil, I.E. Bella, E.B. Peterson Jan 1990

Silviculture And Management Of Aspen In Canada: The Western Canada Scene, S. Navratil, I.E. Bella, E.B. Peterson

Aspen Bibliography

No abstract provided.


Aspen Stand Development In Beltrami County, Minnesota, G.P. Hove, C.R. Blinn Jan 1990

Aspen Stand Development In Beltrami County, Minnesota, G.P. Hove, C.R. Blinn

Aspen Bibliography

No abstract provided.


Paper Birch As A Core Material For Aspen Oriented Strandboard And Waferboard, R.O. Gertjejansen, D.C. Ritter, B.A. Popowitz, Uong Chen Jan 1990

Paper Birch As A Core Material For Aspen Oriented Strandboard And Waferboard, R.O. Gertjejansen, D.C. Ritter, B.A. Popowitz, Uong Chen

Aspen Bibliography

No abstract provided.


Ecosystem Carbon Following Aspen Harvesting In The Upper Great Lakes, David H. Alban, D.A. Perala Jan 1990

Ecosystem Carbon Following Aspen Harvesting In The Upper Great Lakes, David H. Alban, D.A. Perala

Aspen Bibliography

No abstract provided.


Aspen Symposium '89: Proceedings. Duluth, Minnesota, July 25-27, 1989, R.D. Adams Jan 1990

Aspen Symposium '89: Proceedings. Duluth, Minnesota, July 25-27, 1989, R.D. Adams

Aspen Bibliography

No abstract provided.


Yield And Nutritional Quality Of Nine Summer Annual Forages, Gerry L. Kuhl, J.P. Shroyes, Paul D. Hartman, Dale L. Fjell Jan 1990

Yield And Nutritional Quality Of Nine Summer Annual Forages, Gerry L. Kuhl, J.P. Shroyes, Paul D. Hartman, Dale L. Fjell

Kansas Agricultural Experiment Station Research Reports

Nine summer annual forages were studied to evaluate yield and nutritional quality differences resulting from forage type and cultivar when cut at two stages of maturity. Substantial dry matter yield and quality differences were observed among the six hybrid pearl millets tested. Several hybrid pearl millets gave comparable dry matter yields to the sorghum-sudans at boot and headed stages of growth. Hybrid pearl millets were much higher in crude protein than the hybrid sorghum-sudans and sudangrass. Although yield increased markedly between boot and headed cutting stages, nutritional value declined greatly. Nitrate levels were excessively high in all forages when harvested …


Influence Of Fat And Ionophores On Performance Of Finishing Steers, E.M. Clary, Robert T. Brandt Jr., Ronald V. Pope Jan 1990

Influence Of Fat And Ionophores On Performance Of Finishing Steers, E.M. Clary, Robert T. Brandt Jr., Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

One hundred ninety-two crossbred steers were used in a 2 x 4 factorially arranged experiment to study the effects of including fat and ionophores in finishing rations. Main effects were level of supplemental fat (0 or 4% tallow) and ionophore type [none, Bovatece (B), Rumensine + 'JYlane (RT), or daily rotation of Band RT (BRT)]. Daily feed intake (P<.10) and daily gain (P<.OO5) were reduced for steers fed R'T, but only when fat was included in the diet. In diets containing no supplemental fat, RT increased daily gain 10%. RT improved feed efficiency 8% (P<.05) in nonfat diets, but there was no difference between ionophores in diets containing fat. Adding fat improved feed efficiency of steers fed no ionophore or B. This study suggests that response of finishing steers to ionophores can be modified by the inclusion of fat in the diet.


Leukotoxin Production By Fusobacterium Necrophorum Biotypes, Z. Tan, M. M. Chengappa, Tiruvoor G. Nagaraja Jan 1990

Leukotoxin Production By Fusobacterium Necrophorum Biotypes, Z. Tan, M. M. Chengappa, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Fusobacterium necrophorum biotypes A and B were grown anaerobically to detect their leukotoxin production. Both biotypes exerted the highest leukotoxic effect on bovine leukocytes in the late logarithmic and early stationary growth places. Biotype A produced more leukotoxin than biotype B throughout all phases of bacterial growth. Results are consistent with the findings that biotype A is more virulent than biotype B.


Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis Jan 1990

Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis

Kansas Agricultural Experiment Station Research Reports

Indigenous lactic acid bacteria (LAB) were isolated from five silage crops in the 1987 growing season: wheat, alfalfa, com, interseeded grain sorghum and soybeans, and forage sorghum. All crops had post-harvest LAB counts that exceeded 5 x 105 colony-forming units/g. There were no significant correlations between rate of fermentation during the first 7 d post-ensiling and the indigenous LAB counts. However, corn and sorghum, which fermented rapidly, had higher populations of homofermentative LAB, and the isolates showed higher rod to cocci ratios compared to the other three crops. Most of the homofermentative rods isolated were Lactobacillus plantarum, and most of …


Effects Of Rumen-Escape Lipid In A Range Supplement On Postpartum Reproductive Function In Beef Cows, R.B. Hightshoe, R.C. Cochran, L.R. Corah, D.L. Harmon, G.H. Kiracofe Jan 1990

Effects Of Rumen-Escape Lipid In A Range Supplement On Postpartum Reproductive Function In Beef Cows, R.B. Hightshoe, R.C. Cochran, L.R. Corah, D.L. Harmon, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

Postpartum cows receiving a range supplement containing rumen-escape lipid exhibited altered hormone and cholesterol levels compared to cows not fed lipid. Sixty-seven percent of lipid-fed cows exhibited a normal (18.2 d) first estrous cycle vs 33% for cows not receiving lipid. Incorporation of rumen-escape lipid into range supplements appears to significantly improve postpartum reproductive characteristics.


Feed Mills For On-Farm Feed Manufacturing (1990), James P. Murphy, Joseph P. Harner Jan 1990

Feed Mills For On-Farm Feed Manufacturing (1990), James P. Murphy, Joseph P. Harner

Kansas Agricultural Experiment Station Research Reports

Quality feed can be manufactured on farm using hammer or roller mills for particle size reduction and volumetric or weighing devices for proportioning ingredients. An understanding of each of the seven steps involved will enhance the ability to manufacture a quality feed for maximum feed efficiency at a feasible price.; Swine Day, Manhattan, KS, November 15, 1990


Protein Sparing Effect Of A Fermentation Product In Pig Diets From Weaning To Market (1990), J A. Swanson, Joe D. Hancock Jan 1990

Protein Sparing Effect Of A Fermentation Product In Pig Diets From Weaning To Market (1990), J A. Swanson, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred eighty pigs (avg wt of 21.11b) were used in an experiment to determine if a fermentation product improves performance and reduces last rib fat thickness in pigs when added to a low-protein diet regimen. Treatments were: 1) positive control (19-16-14% crude protein regimen during the nursery-growing-finishing phases); 2) positive control plus 2.50 lb/ton fermentation product; 3) low-protein regimen (17-14-12% crude protein during the nursery-growing-finishing phases); 4) low-protein regimen plus 1.25 lb/ton fermentation product; 5) low-protein regimen plus 2.50 lb/ton fermentation product; and 6) low-protein regimen plus 5.00 lb/ton fermentation product. As addition of fermentation product was increased from …