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1999

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Antimicrobial Activity Of Artemisia Absinthium L., Başaran Dülger, Murat Ceylan, Moustafa Alitsaous, Emi̇n Uğurlu Jan 1999

Antimicrobial Activity Of Artemisia Absinthium L., Başaran Dülger, Murat Ceylan, Moustafa Alitsaous, Emi̇n Uğurlu

Turkish Journal of Biology

In this study, extracts of Artemisia absinthium L. were prepared with ethyl acetate, acetone, chloroform and ethanol and antimicrobial activities of these extracts were examined on test microorgansims as follows: Aeromonas hydrophila ATCC 7966, Listeria monocytogenes ATCC 19117, Escherihia coli ATCC 11230, Enterobacter aerogenes ATCC 13048, Corynebacterium xerosis CCM 2824, Corynebacterium glutamicum ATCC 13022, Proteus vulgaris ATCC 8427, Serratia marcescens NRRL 3284, Bacillus cereus ATCC 7064 , Bacillus subtilis ATCC 6633, Bacillus brevis ATCC 9999, Bacillus sphaericus, Bacillus megaterium DSM 32, Bacilus thurigiensis, Mycobacterium smegmatis CCM 2067, Sarcina lutea, Micrococcus luteus LA 2971, Staphylococcus aureus ATCC 6538P, Stapylococcus epidermidis NRRL …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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A Study Of Pollen Mitosis And Pollen Morphology Inhexaploid (2n=24) Bellevalia Edirnensisözhatay & Mathew, Feruzan Dane Jan 1999

A Study Of Pollen Mitosis And Pollen Morphology Inhexaploid (2n=24) Bellevalia Edirnensisözhatay & Mathew, Feruzan Dane

Turkish Journal of Biology

: The pollen mitosis and pollen morphology of hexaploid (2n=24) Bellevalia edirnensis Özhatay & Mathew were examined. Microspores exhibited variation in size, and the exine and aperture developed before pollen mitosis began. During pollen mitosis, polarization, asymmetric styles and normal divisions were observed together with some abnormalities. During polarization of the microspore both nucleus migration and vacuole formation were common. The generative nucleus was in the proximal pole and the vegetative nucleus was in the distal pole. It was also determined that the mature pollens were 2-celled, the shape of the pollens was sphaeroidea, the type of the pollens was …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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Reforming Science Education In Saudi Arabia: A Conceptual Framework For The Design Of Coordinated And Thematic Science (Cats) Module For Grades 7-9., Ghanem S. Al-Ghanem Jan 1999

Reforming Science Education In Saudi Arabia: A Conceptual Framework For The Design Of Coordinated And Thematic Science (Cats) Module For Grades 7-9., Ghanem S. Al-Ghanem

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study was conducted to develop a conceptual framework for the design of science curricula in Saudi middle schools. The methodological procedures of this study also included the assessment of the proposed conceptual framework with science education experts in Saudi Arabia. The development phase consisted of three steps. The first step included the review of related literature. The scope of the literature review included a theoretical background about the various cultural forces which shaped the patterns of education in Saudi Arabia. It also provided an overview of the major emphases in recent reform efforts in science education in the United …

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A Research On Selection Of The Most Effective Species Or Strains Of 7trichogrammafor Biological Control Against Ostrinia Nubilalishübner, Ali Özpinar, Sündüs Uzun, Serif Ali Hassan Jan 1999

A Research On Selection Of The Most Effective Species Or Strains Of 7trichogrammafor Biological Control Against Ostrinia Nubilalishübner, Ali Özpinar, Sündüs Uzun, Serif Ali Hassan

Turkish Journal of Agriculture and Forestry

This study, was carried out to determine the most effective species or strains among Trichogramma evanescensWestwood (from Sakarya-Turkey), T. evanescensWestwood (from Adana-Turkey), T. evanescensWestwood (from Moldavia), T. ostriniaePang et Chen (from China), T. evanescens Westwood (from Darmstadt-Germany), T. brassicae Bezdenko (from Aydin-Turkey) and T. maidis Pintureau & Voegele (from France), which were investigated or used for biological control against O. nubilalis in different countries. A single female was offered choice between 2x40 eggs of O. nubilalis and 2x50 eggs of Sitotroga cerealella (Olivier), sticked on the corner of a white paper (2x2 cm) with one honey drop in the tubes. …

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An Analysis Of Science- And Technology-Related Health Assistance Provided To Lesser Developed Nations From 1985 To 1995., Robin C. Spitznogle Jan 1999

An Analysis Of Science- And Technology-Related Health Assistance Provided To Lesser Developed Nations From 1985 To 1995., Robin C. Spitznogle

Graduate Theses, Dissertations, and Problem Reports (ETD)

The problem of this research was to analyze science- and technology-related health assistance provided to Third World nations between 1985 and 1995 by four donor agencies: Ford and Rockefeller Foundations, USAID, and World Bank. The research examined health assistance in terms of (1) the number and value of projects by region, sub-region, and country; (2) the amount of assistance provided by individual donor agencies; (3) the types of projects initiated; and (4) the impact that these projects had on 8 health-related and 1 economic-related indicator in selected countries. A total of 610 health projects, valued at $1.6 billion, were identified. …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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Comparative Genomic Hybridization (Cgh) Incancer Research, İbrahi̇m Keser Jan 1999

Comparative Genomic Hybridization (Cgh) Incancer Research, İbrahi̇m Keser

Turkish Journal of Medical Sciences

Cancer is a multifactorial and multistep process. Conventional cytogenetics has become a major working field in cancer research. Chromosome rearrangements are recognized as critical in the pathogenesis of human cancer. Molecular biology and molecular cytogenetics technology have increased our ability to identify genetic alterations in cancer cells. Polymerase chain reaction (PCR), fluorescence in situ hybridization (FISH), oligonucleotide-primed in situ DNA synthesis (PRINS) are the most common molecular cytogenetic procedures in cancer research but they have limits with precise localization in their principles in cancer researching. However, comparative genomic hybridization (CGH) is a powerful molecular cytogenetic technique which allows the analysis …

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Mao Inhibitors In Aging: Can They Serve As Protective Agents In Cardiac Tissue Against Oxidative Stress?, Ferhan Külahçioğlu Gi̇rgi̇n, Mert Özgönül, Güli̇nnaz Alper, Gülri̇z Menteş, Bi̇ltan Ersöz, Eser Yildirim Sözmen Jan 1999

Mao Inhibitors In Aging: Can They Serve As Protective Agents In Cardiac Tissue Against Oxidative Stress?, Ferhan Külahçioğlu Gi̇rgi̇n, Mert Özgönül, Güli̇nnaz Alper, Gülri̇z Menteş, Bi̇ltan Ersöz, Eser Yildirim Sözmen

Turkish Journal of Medical Sciences

Biological damage mediated by reactive oxygen species has been increasingly recognized in aging phenomena in recent decades. The increase in catecholamine metabolism is yet another physiological change in aging, predisposing the organism to supranormal hydrogen peroxide produc-tion as a by-product. This study was undertaken to investigate the alterations in oxidant- antioxidant status in rat cardiac tissue during aging. The effects of acute administration of monoamine oxidase (MAO) inhibitors on this status were also investigated to find possible preventive strategies in conjugate aging. MAO activities, malondialdehyde MDA and diene conjugate levels as well as superoxide dismutase and catalase activities were determined …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

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Investigations On Natural Enemies, Some Biological Characteristics And Population Fluctuations Of Lepidosaphes Ulmi (L.) (Homoptera, Coccidae) Harmful, Tüli̇n Erol, Bülent Yaşar Jan 1999

Investigations On Natural Enemies, Some Biological Characteristics And Population Fluctuations Of Lepidosaphes Ulmi (L.) (Homoptera, Coccidae) Harmful, Tüli̇n Erol, Bülent Yaşar

Turkish Journal of Agriculture and Forestry

This study was carried out from 1991 to 1993, in Van province (Erciş, Edremit, Gevaş), which aimed to find out the population fluctations, some biological characteristics and natural enemies of L. ulmi and P. bituberculatum harmfull to apple trees. Samples were collected periodically every 15 day from 7 trees (Starting variety) in every orchard determined in Gevaş, Edremit and Erciş. All the biological stages, either alive or death, of pests, parasitized individuals and natural enemies were counted on the branches or leaves infested. According to the results obtained, it was determined that L. ulmi and P. bituberculatum overwintered as egg …

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A Study Of The Alkaloids In Callusing Plant Tissues From A Range Of Turkish Cultivars Of Papaver Somniferum., Nermi̇n Kaya, Brain Lockwood Jan 1999

A Study Of The Alkaloids In Callusing Plant Tissues From A Range Of Turkish Cultivars Of Papaver Somniferum., Nermi̇n Kaya, Brain Lockwood

Turkish Journal of Agriculture and Forestry

Plant tissue cultures were obtained from the seeds of five varieties on the basis of petal colour) of Papaver somniferum and alkaloidal extracts were screend for the presence of secondary metabolites using thin layer chromatography and mass spectroscopy. Two plant tissue culture media were used in this study, Murashige & Skoog and Gamborg B5, supplemented with 0.1 mg/l of kinetin in addition to one of either 1.0 or 5.0 mg/l of 2, 4 dichlorophenoxyacetic acid (2, 4-D). Seedlings growing on media with 1.0 mg/l 2, 4-D produced planlets, while those supplemented with the higher dose, 5.0 mg/l, produced calluses. Variations …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

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Effects Of Temperature And Ripening Stage On The Respiration Rate Of Tomatoes, Ali̇ Batu Jan 1999

Effects Of Temperature And Ripening Stage On The Respiration Rate Of Tomatoes, Ali̇ Batu

Turkish Journal of Agriculture and Forestry

The effects of storage temperature and ripening stage on the ripening rate of freshly harvested tomatoes before storage were determined. Respiration was slower in tomatoes harvested at mature green stage of ripening, and the respiration rate increased until the tomatoes reached to the pink and light-red stages of maturity. The maximum CO 2 production occurred in toma-toes harvested at pink, light-red and red stages of maturity, whereas the minimum O 2 consumption occurred in tomatoes harvested at turning, pink and light-red stages of maturity. The highest levels of ethylene were produced by tomatoes harvested at breaking, turning and pink stages …

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Relationships Between Stem Rust ( Puccinia Graminis Triticieriks. And Henn.) Resistances And Morphological Traits In Some Wheat (Triticumspp.) Hybrids, Hakan Ulukan, Murat Özgen Jan 1999

Relationships Between Stem Rust ( Puccinia Graminis Triticieriks. And Henn.) Resistances And Morphological Traits In Some Wheat (Triticumspp.) Hybrids, Hakan Ulukan, Murat Özgen

Turkish Journal of Agriculture and Forestry

This research was carried out to determine whether dominant morphological features could be used instead of disease tests as markers of lines resistant to stem rust ( Puccinia graminis tritici Eriks. and Henn.). Of the 13 species used as material in the hybridization program, 9 were non-resistant and 4 were resistant. Experiments were carried out separately, because of the different genetic structure in seedling resistance and adult resistance. It was determined that in view of the morphological characters examined; auricle colour, leaf colour and leaf waxiness in seedling resistance, and grain glumaceouss, spike brittleness and awn dentiness in adult resistance …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

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Cultivation Of Pleurotus Floridaon Forest And Agricultural Wastes By Leaves Of Tree And Wood Waste, Hüseyi̇n Si̇vri̇kaya, Hüseyi̇n Peker Jan 1999

Cultivation Of Pleurotus Floridaon Forest And Agricultural Wastes By Leaves Of Tree And Wood Waste, Hüseyi̇n Si̇vri̇kaya, Hüseyi̇n Peker

Turkish Journal of Agriculture and Forestry

Some forest and agricultural wastes of Eastern Black Sea Region of Turkey were subjected to mushroom ( Pleurotus florida) cultivation in this study. 1:1, 1:3 and 3:1 (w:w) mixtures were prepared mainly by tree leaves wood wastes of timber work shops, cupola of nut trees (NC) and leaves (NL), corn stalks (CS), waste tea leaves (WTL) of tea factories, wheat straw (WS) and waste paper(WP). P.floridaof which the strain was numbered darmycel by Fungi Perfect co. (USA) was used in inoculations of pre-pared series of substrates after being sterillized in an autoclave by direct vapor. Results indicated that wood waste …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

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A Research On The Using Possibilitiy Of The Tobacco Wastes Of Cigarette Factory As Fertilizer, Menşure Özgüven, Zülküf Kaya, Mehmet Asi̇lyilmaz, Sali̇ha Kirici, Sezen Tansi Jan 1999

A Research On The Using Possibilitiy Of The Tobacco Wastes Of Cigarette Factory As Fertilizer, Menşure Özgüven, Zülküf Kaya, Mehmet Asi̇lyilmaz, Sali̇ha Kirici, Sezen Tansi

Turkish Journal of Agriculture and Forestry

In this study, possibilities of using the tobacco wastes as fertilizers, after processing in cigarette industry have been investigated. Wheat and rape seed and sesame and corn were selected as test plants for winter and summer time period, respectively. For this purpose, tobacco wastes in the different rates (0, 750, 1500, 2250 and 3000 kg/da) were applied into soil at 15 cm. depth two months ago before seeding so it provides partly decomposition of the tobacco wastes. Also another plot which is fertilized at the recommended rates for each crop was included into experiment for comparing the effects of tobacco …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

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A Study Of The Flower Biology Of Different Rye Genotypes (S. Cereale L., S. Montanum Guss.), İlknur Akgün, Meti̇n Tosun, Sevi̇m Sağsöz Jan 1999

A Study Of The Flower Biology Of Different Rye Genotypes (S. Cereale L., S. Montanum Guss.), İlknur Akgün, Meti̇n Tosun, Sevi̇m Sağsöz

Turkish Journal of Agriculture and Forestry

In this study, the pollen germination rate, pollen viability, pollen size, pollen production and anther length of rye (S. cereale L.) and the diploid and tetraploid of perennial rye (S. montanum Guss.) populations were examined. The highest pollen germination rate was obtained in 30 % sucrose, 5 ppm boric acid and 10 ppm calcium nitrate solution with all specimens. Furthermore, the lowest pollen size (length: 18.92 \mum; width: 15.26 \mum), pollen production per anther (19982) and anther length (7.39 mm), but the highest pollen germination rate (40.48 %) and pollen viability (94.93 %) were observed in diploid perennial rye.

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Studies On Mushroom Production In Aquaculture With Tuff And Perlite, Şeref Aksu, Ati̇la Günay Jan 1999

Studies On Mushroom Production In Aquaculture With Tuff And Perlite, Şeref Aksu, Ati̇la Günay

Turkish Journal of Agriculture and Forestry

In this study perlite, volcanic tuff and peat moss media were investigated for their possible use in mushroom production in aquaculture between 1994-1995. In mushroom feeding studies, 2% sucrose medium was found to be the most suitable solution for mushroom mycelium growth. Among the 6 different media each containing 2% sucrose, the effect of different rates of micro and macro elements were studied and mycelium growth was investigated. The best liquid medium in relation to the highest dry weight of mycelium was the medium labelled No. 1 which consisted of 10^-3 mol/l of macro and 10^-6 mol/l of micro nutrient …

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Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Chemistry

No abstract provided.

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Book Reviews Jan 1999

Book Reviews

Journal of Maritime Law and Commerce

No abstract provided.

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"1999 Fighting Sioux Football", University Of North Dakota Jan 1999

"1999 Fighting Sioux Football", University Of North Dakota

UND Athletics Publications: Football

Media guide for the 1999 UND football team. The guide contains information about the team and its coaches, and was sent to local and regional media outlets.

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Contributors Jan 1999

Contributors

Coronary Artery Anomalies

No abstract provided.

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Preface Jan 1999

Preface

Coronary Artery Anomalies

No abstract provided.

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Chapter 4: Normal And Anomalous Coronary Arteries In Humans. Part 1: Historical Background, Paolo Angelini, Salvado Villason, Albert V. Chan, Jr., Jose' G. Diez Jan 1999

Chapter 4: Normal And Anomalous Coronary Arteries In Humans. Part 1: Historical Background, Paolo Angelini, Salvado Villason, Albert V. Chan, Jr., Jose' G. Diez

Coronary Artery Anomalies

No abstract provided.

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