Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (10730)
- Computer Engineering (3106)
- Computer Sciences (3106)
- Electrical and Computer Engineering (3106)
- Engineering (3106)
-
- Chemistry (2730)
- Mathematics (2595)
- Medicine and Health Sciences (1863)
- Life Sciences (1816)
- Medical Sciences (1429)
- Physics (1382)
- Earth Sciences (917)
- Animal Sciences (666)
- Agriculture (623)
- Forest Sciences (623)
- Veterinary Medicine (434)
- Biology (299)
- Zoology (232)
- Botany (228)
- Plant Sciences (228)
- Keyword
-
- Turkey (166)
- 1 (99)
- 2 (85)
- Classification (75)
- Machine learning (75)
-
- Deep learning (74)
- Optimization (72)
- Genetic algorithm (62)
- Synthesis (62)
- Adsorption (57)
- Geochemistry (55)
- Antimicrobial activity (54)
- Particle swarm optimization (53)
- COVID-19 (51)
- 3 (47)
- Children (42)
- Cytotoxicity (42)
- Oxidative stress (41)
- Reliability (41)
- Stability (41)
- Antioxidant (40)
- Artificial neural network (40)
- Antibacterial activity (38)
- Phthalocyanine (36)
- Support vector machine (36)
- Quality of life (34)
- Dog (33)
- Feature extraction (33)
- Molecular docking (33)
- Antioxidant activity (31)
- Publication Year
Articles 14071 - 14100 of 15009
Full-Text Articles in Entire DC Network
The Ammonium Fixation In Great Soil Groups Of Tokat Region And Some Factors Affecting The Fixation I. The Affect Of Potassium On Ammonium Fixation, Kenan Kiliç, M. Rifat Deri̇ci̇, Kadi̇r Saltali
The Ammonium Fixation In Great Soil Groups Of Tokat Region And Some Factors Affecting The Fixation I. The Affect Of Potassium On Ammonium Fixation, Kenan Kiliç, M. Rifat Deri̇ci̇, Kadi̇r Saltali
Turkish Journal of Agriculture and Forestry
The objective of this study was to evaluate the fixation of ammonium in the soils of Tokat region to find out the important factors influencing them. For this purpose 12 representative soil samples were collected from different Great Soil Groups in the region. The amount of ammonium fixed naturally in the samples was found between 41.62-66.90 ppm ammonium (0.29-0.47 me NH 4 -N/100 g. soil). The amounts of ammonium fixed by the soils where increasing amounts of ammonium applied were found between 0.63-1.29%. There was a significant effect from application of potassium to the soils on the fixation of ammonium. …
The Effect Of Bleaching Conditions On The Physical And Optical Properties During The Bleaching Of Ctmp With Peroxide, Mustafa Usta, Ahmet Tutuş
The Effect Of Bleaching Conditions On The Physical And Optical Properties During The Bleaching Of Ctmp With Peroxide, Mustafa Usta, Ahmet Tutuş
Turkish Journal of Agriculture and Forestry
In order to determine the effect of bleaching conditions on the physical and optical properties of pulps during the bleaching of CTMP with H_2O_2, 48 bleaching trials were carried out. After the analysis of the data obtained, the optimum bleaching conditions were as follows: H_2O_2 ratio 2.5-3%, Na_2SiO_3 ratio 3%, NaOH ratio 3%, NaOH/H_2O_2 ratio 0.75, MgSO_4 rate 0.5%, reaction temperature 70ºC, EDTA rate 0.5%, reaction time 80 minutes and concentration 16%. Brightness, breaking length, burst and tear index of CTMP bleached with H_2O_2 were found to be 51.42%, 18.03%, 92.50% and 13.20% respectively, higher than those of unbleached CTMP.
The Effects Of Different Plant Cover Conditions On Erodibility Of Soil, Ahmet Ali̇ Işildar
The Effects Of Different Plant Cover Conditions On Erodibility Of Soil, Ahmet Ali̇ Işildar
Turkish Journal of Agriculture and Forestry
Because of changes in the surface soil structure during winter the highest potential soil erosion usually occurs in spring. This investigation was undertaken in order to determine the effects of different slope and plant cover conditions on the erodibility of soils before the erosive precipitation of spring in the Isparta-Atabey district. In this research, 3 different slopes (%
The Physical And Chemical Properties And Fatty Acid Compositions Of Raw And Brined Caperberries (Capparis Spp.), Musa Özcan
Turkish Journal of Agriculture and Forestry
Fruits of Capparis spinosa L. var. spinosa and Capparis ovata Desf. var. canescens (Coss.) Heywood 0.7-1.9 cm in diameter were collected and brined. The crude oil, fiber and pH, starch, water-soluble, alcohol-soluble and ether-soluble extracts, and the Na, Mn and Zn contents of C. spinosa fruits were higher than those of C. ovata, while they contained less oleic and linoleic acids. The crude protein, oil, fiber and energy, reducing sugars, starch, total carotenoids, ether-soluble extract, hardness, K, P, Cu, Mn, Zn, palmitic and oleic contents of the fermented products were considerably lower compared with the raw fruits. The major fatty …
Physical Properties Of Alder [Alnus Glutinose Subsps. Barbata (C.A.Mey.) Yalt.] Wood Obtained From Rize-Çayeli Region, Yalçin Örs, Nurgül Ay
Physical Properties Of Alder [Alnus Glutinose Subsps. Barbata (C.A.Mey.) Yalt.] Wood Obtained From Rize-Çayeli Region, Yalçin Örs, Nurgül Ay
Turkish Journal of Agriculture and Forestry
In this study, physical properties of Alder Wood [Alnus glutinose subsps. barbata (C.A.Mey.)Yalt.] were investigated. 10 trees used for experiments were obtained from Rize-Çayeli region and samples were then prepared in accordance with the related standarts. Width of annual rings, density in oven-dried and airdried position, density value in volume, the amount of shrinkage and swelling, the ratio of cell walls and air cavities, the moisture content of wood at green condition, and the fiber saturation point as physical properties were determined. Results indicated that, the mean values were as below: Width of annual rings, 2.61 mm: air dried and …
Changes In The Stability Of Frozen Puff Pastry Doughs During The Shelf Life, Orhan Dağlioğlu, Murat Taşan, Bariş Tunçel
Changes In The Stability Of Frozen Puff Pastry Doughs During The Shelf Life, Orhan Dağlioğlu, Murat Taşan, Bariş Tunçel
Turkish Journal of Agriculture and Forestry
In this research changes in the free fatty acidity (%) and peroxide values, fatty acid composition, specific height and sensory properties of puff pastry doughs were investigated during the shelf-life (12 months) by storing them at -18 °C after being frozen at -40°C. Samples were made of puff pastry margarines belong to three different company. Free fatty acidity (%) and peroxide values were slightly increased with duration of shelf-life while the changes in the free fatty acid composition have remained at limited level. Spesific height that is an important quality criteria of baked puff pastries decreased gradually in all samples. …
Effect Of Phosphorus Fertilizers And Application Methods On The Yield Of Wheat Grown Under Dryland Conditions, Sabri̇ Gökmen, Özer Sencar
Effect Of Phosphorus Fertilizers And Application Methods On The Yield Of Wheat Grown Under Dryland Conditions, Sabri̇ Gökmen, Özer Sencar
Turkish Journal of Agriculture and Forestry
This study was conducted to investigate the efficiency of diammonium phosphate (DAP) and triple superphosphate (TSP) as phosphorus (P) sources and the effect of fertilizer application methods on the grain yield, yield components and other characteristics of winter wheat. The research was conducted in the ecological conditions of Tokat-Kazova during the 1990-1991 and 1991-1992 growing seasons. Bezostaja-I and Kirkpinar-79 cultivars were used as the plant materials. DAP and TSP fertilizers were applied according to four different methods, i. e., broadcasting, with seed, application 5 cm to the right and left of the seed and 5 cm below the seed. The …
The Effect Of Interesterification Reactions On The Tocopherols And The Sterols In Fats, Azi̇z Teki̇n, Muammer Kayahan
The Effect Of Interesterification Reactions On The Tocopherols And The Sterols In Fats, Azi̇z Teki̇n, Muammer Kayahan
Turkish Journal of Agriculture and Forestry
In this study, interesterification which has been used in developed countries for years and tried in Turkey recently, was applied to a sunflower oil and beef tallow blend (80:20). 25 sample fats were obtained by applying interestification at different temperatures and times by adding 0.3% sodium methoxide. The changes in the tocopherols and sterols of these fats were investigated. It was determined that the reaction was completed at 70°C in 45 minites and at higher temperatures and longer times using lipase hydrolysis. In conclusion tocopherols and sterols were esterified more quickly as time and temperature increased. Therefore, they were more …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
The Effect Of Water Content On The Penetration Resistance Of Different Soils, And Regression Models, Cevdet Şeker
The Effect Of Water Content On The Penetration Resistance Of Different Soils, And Regression Models, Cevdet Şeker
Turkish Journal of Agriculture and Forestry
The purposes of this study were to determine the relationships between soil water content and soil penetration resistance, and to develop regression models for comparing penetration resistance in different soils. A field study was conducted on four different soils in Entisol on the Konya plain. Significant relationships were found between soil water content and soil penetration resistance (r^2= 0.77 to 0.99). The results of regression analysis showed that the regression equation was Y=a+bX^3, in which Y was penetration resistance (kPa) and X was soil water content (%), a and b were constants changing with soil and different layers of the …
Effects Of Surface Coating Materials On The Physical And Mechanical Properties Of Particleboard Used For Kitchen Cabinets And Surface Quality Properties: Part 1. Effects Of Physical Properties, Turgay Özdemi̇r, Hülya Kalaycioğlu, Abdulkadi̇r Malkoçoğlu, Gökay Nemli̇
Effects Of Surface Coating Materials On The Physical And Mechanical Properties Of Particleboard Used For Kitchen Cabinets And Surface Quality Properties: Part 1. Effects Of Physical Properties, Turgay Özdemi̇r, Hülya Kalaycioğlu, Abdulkadi̇r Malkoçoğlu, Gökay Nemli̇
Turkish Journal of Agriculture and Forestry
In this study, the effects of surface coating materials on the physical and mechanical properties of particleboard used for kitchen cabinets and surface quality properties were investigated. But, in this part, effects of these on the physical properties on particleboard were investigated. 18 mm thickness particleboard were obtained from four different sources belong to private sector for producing test samples. Coated and varnished veneer , lacquer coating, continious pressure laminate, high pressure laminate and polivinylchloride coating were applied on these samples. The following were recorded during the experiments: Spesific gravity, water absorbtion and thickness swelling. As a result of this …
The Determination Of Fitness Of Various Isotherm Equations To Moisture Sorption Data Of Kırık, Lancer Barley, Rye, Oat And Corn, Fati̇h Ertugay, Muharrem Certel
The Determination Of Fitness Of Various Isotherm Equations To Moisture Sorption Data Of Kırık, Lancer Barley, Rye, Oat And Corn, Fati̇h Ertugay, Muharrem Certel
Turkish Journal of Agriculture and Forestry
In this research, the fitness of Halsey, Henderson, Harkins-Jura, BET, Smith and Freundlich isotherm equations to moisture sorption data at 20, 25, 35, 50 and 70°C of Kırık, Lancer, barley, rye, oat and corn were investigated. Isotherm equations, fitted quite well to obtained sorption data, were determined and parameter constants of the equations were calculated by regression using the lineer form of the isotherm equation. The best fitness was seen in Henderson equation as low fitness was seen for BET equation.
The Effect Of Fish Oil On Liver And Plasma Mda And Antioxidant Status Of Rats, Nuriye Mete, Birgül Işik, Levent Erdi̇nç, Fuat Gürkan
The Effect Of Fish Oil On Liver And Plasma Mda And Antioxidant Status Of Rats, Nuriye Mete, Birgül Işik, Levent Erdi̇nç, Fuat Gürkan
Turkish Journal of Medical Sciences
The question how fish oil (FO) and soybean oil (SO) change the state of antioxidant and the lipid peroxidation in liver and plasma of rats and the protective role of vitamin E were investigated. Six-week-old forty male Sprague-Dawley rats were divided into five groups. One of the groups fed a control diet, another one fed SO, while the other three groups fed FO diet at the level of 10% Vitamin E supplementation was maintained to three different levels 3, 50, 150 IU/per kg diet in the FO diets and 3 IU vitamin E per kg of the SO diet. At …
Effect Of Exercise On Blood Antioxidant Status And Erythrocyte Lipid Peroxidation: Role Of Dietary Supplementation Of Vitamin E, Mustafa Kelle, Hüda Di̇ken, Abdurrahman Şermet, Mukadder Atmaca, Cemi̇l Tümer
Effect Of Exercise On Blood Antioxidant Status And Erythrocyte Lipid Peroxidation: Role Of Dietary Supplementation Of Vitamin E, Mustafa Kelle, Hüda Di̇ken, Abdurrahman Şermet, Mukadder Atmaca, Cemi̇l Tümer
Turkish Journal of Medical Sciences
We tested the effects of moderate physical exercise on the blood antioxidant capacity and erythrocyte lipid peroxidation in 21 Wistar albino rats. Erythrocyte superoxide dismutase (SOD) activity increased significantly (p
Cardiovascular Disease Risk Factors In Women Working In A Tobacco Plant, Bahatti̇n Adam, Abdulkeri̇m Bedi̇r, Cumhur Kilinç, Şennur Arslan, Muhli̇se Alvur
Cardiovascular Disease Risk Factors In Women Working In A Tobacco Plant, Bahatti̇n Adam, Abdulkeri̇m Bedi̇r, Cumhur Kilinç, Şennur Arslan, Muhli̇se Alvur
Turkish Journal of Medical Sciences
To estimate the effect of exposure to tobacco dust on lipid parameters that increase the incidence of cardiovascular disease (CVD), 70 female workers were selected from the tobacco processing section of a tobacco plant, and 55 women were selected from the administration selection as the controls. The subjects were homogeneous in terms of primary and secondary risk factors such as age, alcohol intake, menstrual status, physical activity, diet, familial hyperlipidemia and heart disease. They were divided into two subgroups, smokers and nonsmokers. Venous blood and morning urine samples were simultaneously taken from workers after a 12-14 h period without food …
Osteopoikilosis: Report Of A Familial Case, Ercan Tunç, Serpi̇l Savaş
Osteopoikilosis: Report Of A Familial Case, Ercan Tunç, Serpi̇l Savaş
Turkish Journal of Medical Sciences
No abstract provided.
Strength Of Individual Soil Aggregates Against Crushing Forces Ii. Influence Of Selected Soil Properties, Taşkin Öztaş, Mustafa Y. Canbolat, Koray Sönmez
Strength Of Individual Soil Aggregates Against Crushing Forces Ii. Influence Of Selected Soil Properties, Taşkin Öztaş, Mustafa Y. Canbolat, Koray Sönmez
Turkish Journal of Agriculture and Forestry
The objective of this study was to determine the influence of selected soil properties on the relative strength of individual oil aggregates against crushing forces. Soil aggregates were crushed between a flat surface and a flat plate connected to a pocket penetrometer. Significant relationships were found between dry-aggregate stability and the clay content, sand content, CEC and ESP of the soils studied. There was also a significant positive correlation between dry-aggregate stability and wet-aggregate stability (r=0.94**). No significant relationships were found between dry-aggregate stability and silt content, organic matter content, CaCO 3 content or pH. Stepwise multiple regression analysis indicated …
Effect Of The Environmental Temperature On The Degradation Period Of Carbaryl, Ahmet Uyanik, Mustafa Özdemi̇r
Effect Of The Environmental Temperature On The Degradation Period Of Carbaryl, Ahmet Uyanik, Mustafa Özdemi̇r
Turkish Journal of Agriculture and Forestry
In this study, the effect of the temperature on the degradation period of Carbaryl (Sevin), a widely used outdoor and indoor insecticide, was investigated in a laboratory in soil and on green plants by using a new quantitative TLC (Thin Layer Chromatography) method. The experimental temperature conditions were 40°C , 16°C and 5°C for soil and 15°C for green plants. The results which were evaluated by photocopying of the TLC spots on a graph paper and square counting showed that carbaryl degradation is a first order reaction and the temperature dependent half-life of the degradation takes grater than four weeks …
Comparing Tillage Techniques By Using A New Infiltration Methodfatih Topaloğlu, Fati̇h Topaloğlu
Comparing Tillage Techniques By Using A New Infiltration Methodfatih Topaloğlu, Fati̇h Topaloğlu
Turkish Journal of Agriculture and Forestry
A one-year field trial in Italy was carried out for comparing tillage systems such as 50 cm chiselling (CH), 40 cm plow-till (PT40) and 20 cm plow-till (PT20) according to results of a new developed infiltration method. Ponded infiltration rates were measured to obtain the field saturated hydraulic conductivity (K fs ) using single ring infiltrometers on six dates with six replications in three sites on a sandy clayey loam soil. In both PT20 and CH plots, K fs after tillage increased temporarily to a value of about 4 and 9 times greater than that observed before tillage, respectively. However, …
The Cleavage Strength Of Calabrian Pine (Pinus Brutia Ten.) Woods Growing Naturally In Different Ecological Regions Of Turkey, İbrahi̇m Bektaş, Ahmet Tutuş
The Cleavage Strength Of Calabrian Pine (Pinus Brutia Ten.) Woods Growing Naturally In Different Ecological Regions Of Turkey, İbrahi̇m Bektaş, Ahmet Tutuş
Turkish Journal of Agriculture and Forestry
In this study, the test trees were taken from natural growth sites that calabrian pine grows optimally had been used as research material. The main aim of study is to determine cleavage strengh variation to find in different growing regions. Test trees of 20 in number were collected from 5 different regions (Suçatı - Kahramanmaraş, Edremit - Balıkesir, Kemalpaşa - İzmir, Yılanlı- Muğla, Melli (Bucak) - Burdur). Test samples were prepared from stem part of trees between at a hight of 2 and 4 meters. The effect of factors growing region on the cleavage strengh of trees was tested by …
A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar
A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar
Turkish Journal of Agriculture and Forestry
The effects of 2 different types of milk (cow's and goat's milk), 4 types of flavouring (coffee, strawberry, cherry and peach) and 15 days of storage on the physical, chemical and organoleptic qualities of flavoured yogurts were investigated and the results summarised below. The results of the analysis indicate that different types of milk and flavouring had statistically significant effects (p
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Turkish Journal of Agriculture and Forestry
This research was conducted in order to determine the alkalinity of soils in Kazova and the Kg values which are an indicator of alkalinity. Twenty-four soil profiles were studied for this purpose. None of these profiles exhibited any alkalinity problem for 0-15 cm soil depths (except profile A_3). However, 3 profiles exhibited an alkalinity problem for 15-30 cm, 12 profiles for 30-60 cm, 11 profiles for 60-90 cm, and 6 profiles for 90-120 cm depths. The ESP values calculated for 30-60 cm were highest, followed by those for 60-90, 90-120, 15-30, 0-15 cm in decreasing order. The Gapon Coefficient (Kg), …
Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker
Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker
Turkish Journal of Agriculture and Forestry
This study was designed to determine the effect of impregnation with some chemicals on the density of wooden materials. For this reason, experimentals were prepared from Scotch pine and Oriental beech woods and impregnated with polyethylene glycole (PEG-400), ammonium per sulphate (AS), vacsol (V), and also water-repellent (WR), such as stryne, methylemetacrylate and isocynate according to ASTM-D 1413-76 It was found that, after impragnation process oriental beech wood dried in air was the most dense material when ıt is individually used with styrene and MMA, whereas Scotch pine wood was the most dense when it is used with water-repellent (WR) …
Studies On The Ecology Of Chrozophora Tinctorial. Andrubia Tinctoruml. In Western Anatolia, Süleyman Başlar, Hasan Hüseyin Mert
Studies On The Ecology Of Chrozophora Tinctorial. Andrubia Tinctoruml. In Western Anatolia, Süleyman Başlar, Hasan Hüseyin Mert
Turkish Journal of Botany
This study was carried out to determine the autecological and economic importance of Chrozophora tinctoria L. ( Euphorbiaceae) and Rubia tinctorumL. ( Rubiaceae) distributed in western Anatolia. A Physical and chemical analysis was performed on the soils where these plants grow and a chemical analysis of the plants was also carried out. The results obtained were assessed using regression analysis. It was found that both of the plants generally grow on loam and clayey-loam; neutral to slightly alkaline soils which are both poor and rich in calcium carbonate; slightly saline; moderately rich, rich and very rich in organic matter; rich …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Experimental Determination Of \Beta And \Gamma Critical Exponents In The Sol-Gel Phase Transition By Using Steady-State Fluorescence Technique, Y. Yilmaz, Ö. Pekcan
Experimental Determination Of \Beta And \Gamma Critical Exponents In The Sol-Gel Phase Transition By Using Steady-State Fluorescence Technique, Y. Yilmaz, Ö. Pekcan
Turkish Journal of Physics
The gelation of methyl methacrylate and ethylene glycol dimethacrylate was studied using the steady-state fluorescence technique. Samples with various crosslinker densities were prepared and sol-gel phase transitions were observed at various temperatures. Percolation theory was employed to interpret the results. For all samples the gel fraction and the average cluster size exponents, \beta and \gamma, were measured and found to be around 0.42 and 1.7 respectively. These values show excellent agreement with theoretical and simulation results.