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Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
2020
Fadime Seyrekoğlu | Hasan Temiz
In this study, various extracts of Hypericum perforatum L. were investigated in terms of their extraction yields. For this purpose, five solvent systems including 70%EtOH-30% H2O (A), 50%EtOH-50% H2O (B), 30%EtOH-70% H2O (C), 100% EtOH (D), and 100% H2O (E) were used. Ultrasonic-assisted extraction was used for extraction and extraction processes were performed at different temperatures (30°-70oC) and extraction times (30-70 min.). The optimum extraction conditions for H. perforatum was determined based on extraction yield, total phenolic contents, and DPPH radical scavenging activities of the crude extracts, as well. The best ultrasound extraction conditions are achieved in the presence of 70%EtOH-30% H2O solvent system, for 40 min, at 30°C for H. perforatum.
Afficher plus [+] Moins [-]Evaluation of the Red Meat Sales Policy of the Meat and Milk Institution on the Dimension of Consumers
2020
Adnan Çiçek | Merve Ayyıldız | Didem Doğar
Meat and Milk Institution is implementing red meat sales through grocery chains in order to ensure stability in red meat prices in Turkey. In this study in order to evaluate the effectiveness of this policy from the perspective of consumers, data set obtained from 388 households in Gaziantep city center was used. According to the findings, it has been determined that 53.6% of consumers prefer contracted markets due to the suitability of red meat prices. Initially, all consumers bought red meat from contracted markets, but it was found that 62.11% of them gave up buying red meat from these markets. This situation was found to be quite remarkable and logit model was used to determine the factors affecting the continuity of red meat purchase of households from contracted markets. According to the Logit model results, it was observed that households buying red meat from the contracted markets were affected by the variables that they are care about the price of red meat, income and frequency of shopping at these markets. As a result, it can be stated that this policy implemented by the ESK is aimed at selling red meat to low-income consumers rather than providing price stability and does not have a demand increasing effect.
Afficher plus [+] Moins [-]Effect of Laying Time and Age-Related Change on Egg Characteristics in Brown Layer Pure Lines
2020
Hasan Eleroğlu | Ahmet Nuri Taşdemir
In this study, the Brown Layer Pure Line that housing as individual cage system at the Poultry Research Institute in Ankara was used. Eggs obtained from 24, 28, 32, 36 and 40 weeks old eggs were collected 3 times a day in the morning (10:00), noon (12:00) and evening (15:00). On a total of 427 eggs; Shape Index (SI), Egg weight (YA, g), Albumen height (AY, mm), Roche scale (RS), Haugh unit (HB), Egg Quality Classes (YKS), Shell strength (KM, N) and Shell thickness (KK, Micron) features are emphasized and colour parameters (L*, a*, b*, Hue, Ch and ΔE) of egg shell were determined. The effect of oviposition time was found significant on the Shape index, Egg weight (g), Haugh unit and Shell thickness (micron) values. However, Albumen height (mm), Egg Quality, Roche scale and Shell strength (N) were not affected by oviposition time. Among the egg shell colour parameters, a*, b*, Hue and Chrome values were affected by the oviposition time, and the calculated difference was found to be statistically significant.
Afficher plus [+] Moins [-]Hippotherapy Through the Eyes of the Riding Coach
2020
Ali Ekber Ün
The purpose of this review article is to collaborate on future studies about hippotherapy to horse and riding trainers, health professionals, veterinarians, individuals in need and individuals with disabilities and their relatives and to shed light on academic studies. It has been stated in studies that hippotherapy is beneficial for patients in the world. Therefore, as a result of new private hippotherapy centers in public institutions and in Turkey, studies on hippotherapy have been started. The studies carried out in hippotherapy are increasing and widespread and continuing to contribute to the treatment of the individuals in need and individuals with disabilities with hippotherapy sessions with expert teams. However, in the studies, the sessions of the hippotherapy team with two common creatures have great duties on the equestrian coaches in order to meet the needs of the horse and the individual in need or individual with disability. For this reason, since hippotherapy is a multidisciplinary team work consisting of specialist professionals, it has been researched to contribute to the horse and rider coaches on the field and to the expert team attending the sessions, to the new experts and the families of the individuals in need and disabled individuals. In the current review, the information about the history of hippotherapy and development, information about hippotherapy institutions in Turkey, individuals in need and individuals with disabilities, benefits of hippotherapy, characteristics of the hippotherapy horse, training of the hippotherapy horse are emphasized, and especially emphasis is placed on the use of work in the field of horse and equestrian coaching.
Afficher plus [+] Moins [-]Importance of Plants in Terms of Sustainability in Building Bumper Zone in Farm Areas
2020
Gülden Sandal Erzurumlu | Mustafa Boğa
With the effects of various human activities and global warming, pressures on plant species are increasing day by day, living species and living environments are adversely affected. In order to reduce and control these negative effects, a variety of regulatory ecological services are needed to provide both a nutrient environment for animals and to save and maintain their habitat. For this purpose, creating buffer zones at the borders of fence plants and farm areas can be used as a regional supporting mechanism. One of the most important criteria is to use plant species (from Legüminaceae families) which have high nutritional value for animals in farm buffer areas. The selected plants have many functions such as erosion prevention on sloping areas, nutrient retention, aesthetic area creation, flood prevention, odor control. They are the ones that constantly occupy the city's agenda with various environmental problems such as ensuring control of unwanted odors in farm areas and improving visual quality. In this study, it is aimed to determine the plant species that can be suggested to be used in a buffer zone which can be created in order to create aesthetic value in farm areas, to control odor problem and to contribute to studies to create nutrients and to protect ecology.
Afficher plus [+] Moins [-]Response of Okra (Abelmoschus Esculentus l. Yalova Akköy-41) to Different Irrigation and Fertigation Levels
2020
Serhat Ayas
This study was carried out in the greenhouses of Bursa Uludag University Yenişehir Ibrahim Orhan Vocational School in 2014-2015 to determine the effects of five different irrigation levels (T1: 100% (full irrigation), T2: 75%, T3: 50%, T4: 25%, T5: 0% (non-irrigated)) and two different fertilization levels (F1.0: 100% (100:100:100 NPK) fertigation and F0.5: 50% (50:50:50 NPK) fertigation on yield and quality parameters of okra grown under unheated greenhouse conditions. In 2014 and 2015, the amount of irrigation water in the study was applied as 0.0-380.0 mm and 0.0-360.0 mm for the 100% (100:100:100 NPK) fertilization and 50% (50:50:50 NPK) fertilization treatments, respectively. Evapotranspiration values were realized as 200.0-410.0 mm and 130.0-400.0 mm for 100% (100:100:100 NPK) and 50% (50:50:50 NPK) fertilization treatments in 2014, 185.0-425.0 mm and 200.0-450.0 mm in 2015, respectively. It was observed that irrigation water levels significantly affected the yield, fruit diameter, fruit length, 10 fruit weight, and number of fruits per plant and dry matter of okra. The highest yield averages for both years were obtained from T1F1.0 and T1F0.5 treatments were found to be 14.6-17.8 tons’ ha-1 and 16.8 -15.7 tons’ ha-1 in 2014 and 2015, respectively. Crop response factors (ky) of okra were found as 1.38-1.26 and 1.26-1.41 for 100% (100:100:100 NPK) fertilization and 50% (50:50:50 NPK) fertilization treatments in 2014 and 2015, respectively. The highest water use efficiency (WUE) and irrigation water use efficiency (IWUE) values were calculated as 0.036-0.038 kg m-3 and 0.045-0.049 kg m-3 from T1F1.0 and T1F0.5 treatments in 2014 and 0.040-0.047 kg m-3 and 0.035-0.046 kg m-3 from same treatments (T1F1.0 and T1F0.5) in 2015, respectively. The highest T1F1.0 and T1F0.5 values were the closest values were obtained from T2F1.0 and T2F0.5 treatments therefore T2F1.0 and T2F0.5 treatments can be recommended for okra.
Afficher plus [+] Moins [-]An Evaluation Study within the Scope of Distance Education Experience of Selcuk Univercity Landscape Architecture Department Students in Covid-19 Process
2020
Sertaç Güngör | Esra Sivri
The Covid-19 outbreak, which started to appear in China in December 2019, spread to the whole world in a short time and was declared as a pandemic by WHO. Pandemic and its quarantine do not only affect the usual lifestyle, economy, but also education. Countries thought that switching schools to distance education would reduce the virus and its spread would decrease. In our country, in the spring term of the 2019-2020 academic year, the transition from face to face education to distance education has been made. On April 6, Selcuk University started distance education. The purpose of this study; This is an online survey on Selcuk University Landscape Architecture Department students’ internet access, participation in classes and their satisfaction during the distance education process. In the light of the findings and results obtained, it is a guiding tool for lecturers and those working in the system infrastructure, in case of continuing distance education as a result of the prolongation of the process or planned to be created in the future.
Afficher plus [+] Moins [-]Determining the Fisheries Consumption Preferences of Ege University Students
2020
Hülya Saygı
Demand for fishery products rich in protein, vitamin, mineral and omega fatty acids is increasing day by day in order to meet the increasing nutritional needs of the world population. Despite being very beneficial fisheries, the amount of consumption in Turkey is very low compared to other countries. For this purpose, as an exemplary study, it has been tried to reveal the fishery consumption habits of students studying at Ege University. Faculties in Ege University have been considered as layers. In the study, a 25-question questionnaire was conducted face-to-face to 381 students selected according to the random sampling method between February and March 2019, and the results were obtained. The survey results obtained from the participants were evaluated using IBM SPSS 25.0 package program. The obtained results were evaluated by Chi-square analysis and Principal Component Analysis. Two group consumers emerged, representing coastal region 54.8% and Terrestrial region 45.2%. It has been determined that the most important reason for fish consumption in preference factors and availability is price. Ege University of students’ Consumer profiles; It was found to be different in terms of socio-demographic factors, consumption patterns, attitudes towards health and healthy food. As a result, it was determined that the fishery products were not consumed at the desired level in Ege University students. Accordingly, Ege University students should be made aware of increasing their consumption of fisheries. For this purpose, it is recommended to carry out promotions, advertisements and promotions that prove healthy.
Afficher plus [+] Moins [-]Fertility Traits of Kangal Akkaraman Sheep Reared in Breeder Conditions in Sivas Province
2020
Yusuf Ziya Oğrak
The aim of the study was to determine the fertility traits of the Kangal Akkaraman sheep in Yildizeli and Central districts of Sivas. In this study, six years data obtained from breeders between 2013 and 2018 were used in National Animal Improvement Project coordinated by the Turkish Ministry of Agriculture and Forestry. In the first year of the study, 70 enterprises in 48 villages from both districts included in the projects and these were reduced to 57 enterprises in 33 villages in the sixth year. During the six-year period, 86116 lamb records obtained from a total of 76383 ewes in all enterprises were evaluated. Overall average birth rate was 92.7%. While the differences between years were statistically significant, differences between districts were not significant. Thetriplet births were also observed but they were not evaluated separately because of their low rate (0.1%), so they were included in twin births and evaluated as twins. The average twin birth rate was 22% and differences between years, districts and mating periods (five months between August and December) were significant for that. Overall average weaned lamb rate or the survival rate of the weaning period was 91.3% and differences according to years, districts and lambing periods (five months between January and May) were statistically significant for that. According to the values obtained from 5147 lamb records that were born from 4242 ewes of known age in a sub-project of year 2013; the ages (1-10) of sheep were found to have an effect on the birth type, while it was found to be statistically insignificant for the survival rate. According to the results of the research, it would be useful to take into account the factors that increase fertility in order to maximize profitability in the study area and enterprises with similar conditions.
Afficher plus [+] Moins [-]Estimation of Drought by Streamflow Drought Index (SDI) and Artificial Neural Networks (ANNs) in Ankara-Nallihan Region
2020
Tülay Akkurt Eroğluer | Halit Apaydin
In this study, it is aimed to predict drought in Nallihan region by using streamflow drought index and artificial neural network method which is a part of artificial intelligence approaches. The measured data of some meteorological stations (Nallihan, Beypazari, Mihaliccik, Catacik, Goynuk, Mudurnu, Seben and Eskisehir) in the Sakarya Basin and the Nallihan streamflow observation station between 1996 and 2015 were used to forecast 2015-2030 streamflow values. The correlation coefficient in the education and test stages of the ANN model was realized with a high consistency of 0.990 and 0.967, respectively. According to the mean absolute error method, the error performance values of ANN model are 0.19 for the training phase and 0.26 for the test phase. Cumulative streamflow series were created for the reference periods (k1, October-December; k2, October-March; k3, October-June; k4, October-September) and the streamflow drought index values were obtained using measured and predicted values. According to these values, mild droughts were more frequent between 1997-2015 and 2016-2030, but the number of moderate and severe droughts increased gradually. It is predicted that in the future, it may be seen in extreme arid periods in the region. Drought in the 6-month period between October and March is similar to the average of all periods for 1997-2015 and 2016-2030. The use of 6-month drought data for the streamflow drought index is expected to be useful in predicting future drought.
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