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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 201 - 265 of 265 Journals sorted alphabetically
Jurnal Udayana Mengabdi     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
LOGIKA Jurnal Ilmiah Lemlit Unswagati Cirebon     Open Access  
Makara Journal of Science     Open Access  
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
Matters Select     Open Access  
MethodsX     Open Access   (Followers: 1)
Metode & Forskningsdesign     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Middle East Journal of Science     Open Access  
Middle European Scientific Bulletin     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
MUST : Journal of Mathematics Education, Science and Technology     Open Access   (Followers: 4)
Mutis     Open Access  
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal  
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
New Directions in the Teaching of Physical Sciences     Open Access   (Followers: 2)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 3)
Nova     Open Access  
Nuncius     Hybrid Journal   (Followers: 2)
OmniScience : A Multi-disciplinary Journal     Full-text available via subscription  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 3)
Patterns     Open Access  
PENDIPA : Journal of Science Education     Open Access  
People and Nature     Open Access   (Followers: 3)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription  
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
RAC: Revista Angolana de Ciências     Open Access  
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Rekayasa     Open Access  
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research     Open Access   (Followers: 1)
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access  
Research Policy : X     Open Access   (Followers: 2)
Respuestas     Open Access  
Reviews in Theoretical Science     Full-text available via subscription  
Revista Bases de la Ciencia     Open Access  
Revista Binacional Brasil - Argentina: Diálogo entre as ciências     Open Access  
Revista Brasileira de Iniciação Científica     Open Access  
Revista Catarinense da Ciência Contábil     Open Access  
Revista Ciencia y Tecnología     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Revista Científica de la FAREM     Open Access  
Revista Científica de la Universidad Nacional del Este     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Científica y Tecnológica UPSE     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de Información Científica     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Sociedad Científica del Paraguay     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Eletrônica Ludus Scientiae     Open Access  
Revista Logos Ciencia & Tecnología     Open Access  
Revista MundoFesc     Open Access  
Revista Politécnica     Open Access  
Revista Saber Digital     Open Access  
Revista Sociedad y Economía     Open Access  
Revista Tecnológica     Open Access  
Revista Theoria     Open Access   (Followers: 1)
Revista UNIMAR     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
Rihan Journal for Scientific Publishing     Open Access  
Royal Society Open Science     Open Access   (Followers: 7)
Ruhuna Journal of Science     Open Access  
Sainstek : Jurnal Sains dan Teknologi     Open Access  
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi     Open Access  
Scholedge International Journal of Multidisciplinary & Allied Studies     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 4352)
Science & Diplomacy     Free   (Followers: 3)
Science & Technology Studies     Open Access   (Followers: 3)
Science Advances     Free   (Followers: 27)
Science and Technology     Open Access   (Followers: 2)
Science Diliman     Open Access  
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  
Sciences du jeu     Open Access  
Sciential     Open Access  
Scientific African     Open Access  
Scientific American     Full-text available via subscription   (Followers: 446)
Scientific American Mind     Full-text available via subscription   (Followers: 10)
Scientific Bulletin     Open Access  
Scientific Data     Open Access   (Followers: 5)
Scientific Journal of Mehmet Akif Ersoy University     Open Access  
Scientific Journal of Pure and Applied Sciences     Open Access   (Followers: 1)
Scientific Reports     Open Access   (Followers: 85)
Scientific World     Open Access  
Scientonomy : Journal for the Science of Science     Open Access   (Followers: 1)
Scienze Regionali : Italian Journal of Regional Science     Full-text available via subscription   (Followers: 18)
Selforganizology     Open Access  
Seminário de Iniciação Científica e Seminário Integrado de Ensino, Pesquisa e Extensão     Open Access  
Simbiótica     Open Access  
SINET : Ethiopian Journal of Science     Open Access   (Followers: 5)
Smart Science     Open Access  
South African Journal of Science     Open Access   (Followers: 3)
South American Sciences     Open Access  
South East European University Review (SEEU Review)     Open Access   (Followers: 2)
Springer Science Reviews     Hybrid Journal   (Followers: 2)
Studies in Science Education     Hybrid Journal   (Followers: 18)
Sultan Qaboos University Journal for Science     Open Access  
Tanzania Journal of Science     Open Access   (Followers: 4)
TD : The Journal for Transdisciplinary Research in Southern Africa     Open Access  
Technologies     Open Access   (Followers: 1)
TECNOSCIENZA: Italian Journal of Science & Technology Studies     Open Access   (Followers: 1)
Temas y Debates     Open Access  
The Innovation     Open Access  
The Scientific World Journal     Open Access  
The Social Studies     Hybrid Journal   (Followers: 3)
The Winnower     Open Access  
Theoria     Open Access   (Followers: 3)
THEORIA : An International Journal for Theory, History and Foundations of Science     Full-text available via subscription   (Followers: 1)
Transactions of Tianjin University     Full-text available via subscription  
Trilogía     Open Access  
TÜBAV Bilim Dergisi     Open Access  
Türk Bilim ve Mühendislik Dergisi     Open Access  
Tydskrif vir Geesteswetenskappe     Open Access  
Uluslararası Bilimsel Araştırmalar Dergisi (IBAD)     Open Access   (Followers: 1)
UNED Research Journal / Cuadernos de Investigación UNED     Open Access  
Uni-pluriversidad     Open Access  
Uniciencia     Open Access  
Universidad, Ciencia y Tecnología     Open Access  
Universitas (León)     Open Access  
Universitas Scientiarum     Open Access  
Unnes Science Education Journal     Open Access  
Vilnius University Proceedings     Open Access  
Walailak Journal of Science and Technology     Open Access  
WikiJournal of Science     Open Access  
World Scientific Research     Open Access  
Zeitschrift für Didaktik der Naturwissenschaften     Hybrid Journal  
Образование и наука     Open Access   (Followers: 1)
Східно-Європейський журнал передових технологій : Eastern-European Journal of Enterprise Technologies     Open Access   (Followers: 2)

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Türk Bilim ve Mühendislik Dergisi
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2687-6086
Published by DergiPark Homepage  [187 journals]
  • Socio-Demographic Characteristics and Marketing Problems of Potato
           Producers in Afyonkarahisar Province

    • Authors: Bektaş KADAKOĞLU; Bahri KARLI
      Abstract: In this study, it was emphasized that the socio-demographic structure and marketing problems of potato producing enterprises in Afyonkarahisar province, Sandıklı and Şuhut districts, where potato production is intense, and propose suggestions for these problems. The enterprises were determined according to the stratified random sampling method. The data of the main material were obtained by face-to-face survey method from 79 enterprises producing potatoes in the 2019 production period. According to the research findings, It has been determined that the average farm width, age of producers, education level are 34.67 decares, 47.65 years, and 8.27 years, respectively. The farming and potato production experience period 25.78 years and 19.14 years, respectively. The average household size of the enterprises was 5.07 people. It was determined that 83.54% of the enterprises in potato marketing possessed problems that were primarily bad checks and non-payment of their money (68.18%). Due to the high level of education and potato production experience of potato producers, more efficient potato production is likely to eventuate at every stage from production to sales, provided that the producers are trained on production and marketing. In addition, it is considered that the state institutions and organizations purchasing potatoes at appropriate times will reduce the problems that may arise during the marketing of potatoes, which is a significant source of income for the people living in the region.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Grain Yield and Stability Analysis in Two- and Six-Row Barley (Hordeum
           vulgare L) Genotypes

    • Authors: Turan KARAHAN; İlknur AKGÜN
      Abstract: The objective of this study was to determine the stability of 12 barley genotypes (5 two-row barley and 5 six-row barley, advanced barley lines, Altıkat and Sahin-91 varieties) to adapt to different environmental conditions in terms of seed yield. Experiment was designed as randomized block design in two locations (Diyarbakır and Adıyaman) between 2013-15 years. 6 kg phosphorus (P2O5) and 6 kg nitrogen (N) were applied to the decare with the sowing and the rest of the nitrogen (6 kg/da) was given in the tillering period. As for stability parameters, the mean values of genotypes, regression coefficient (bi), deviation from regression (S2d), coefficient of determination (R2), coefficient of variation (CV) and regression line intercept (a) were used. According to two-years experiment results of genotypes; grain number per spike 29.6-59.8, grain weight per spike 1.13-2.06 g, grain yield 415.3-653.5 kg/da. Also, it was determined that genotype 4 performed well adaptation to all environmental conditions, genotype 3, 7, 8 and 12 showed moderate adaptation to all environmental conditions, and genotype 1 and Altıkat were well adapted to well environmental conditions according to stability analysis carried out with grain yield. As a result, it was determined that environmental conditions significantly affect yield, yield components, of barley genotypes. Superior genotypes were determined in terms of grain yield and quality.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Evaluating of the Grain Corn Cultivars Performances Suitable for Burdur
           Conditions

    • Authors: Mutlu ŞAHİN; Burhan KARA
      Abstract: Burdur region of Turkey is one of the provinces developed modern animal husbandry, there isn’t scientific a research has been conducted on grain corn which is a good animal feed. The research aimed to investigate grain yield and yield component traits of ten grain type hybrid dent corn cultivars as main crop at Burdur conditions in the 2019 and 2020 cropping seasons. The experiment was set up according to the Randomized Complete‐Block Design with three replicates. In the study, there were significant differences among the cultivars in terms of the studied characteristics in both years. The highest and the lowest yield values varied depending on cultivars and years. The grain yield of the cultivars varied between 8624-11803 kg/ha in the first year and 8463-12033 kg/ha in the second year. The highest grain yield was determined in Gladius and RX9292 cultivars, while the lowest values were identified in Lila and OSSK596 cultivars in both years. As a result of two consecutive years, two corn cultivars, Gladius and RX9292, are recommended for higher grain production in the Burdur ecological conditions.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Interaction Between Entomology and Gene Technology: Bt-transgenic and Gene
           Drives for Pests Control

    • Authors: Jean Claude NDAYIRAGIJE; Tuğçe ÖZEK, Hacer ÇEVİK, İsmail KARACA
      Abstract: Pest control is the major agricultural activity for increasing crop productivity thus insuring food security. Recent pest management programs are depending too much on chemical pesticides, which are a threat to our health and environment. One of the greatest entomological achievements for the benefits of plant protection is the use of Bacillus thuringiensis to produce transgenic plants resisting pests. However, such organisms comprise inconveniences against human health and biodiversity in terms of genetic pollution. In many countries, the use of Genetically Modified Organisms is prohibited. This study review on integration of growing gene technology with actual scientific achievements can help to determine a sustainable solution to the pest’s problem. In this way, many literatures were referred on to comparatively criticize the effectiveness, safety and sustainability of gene drive over Bt transgenic based on scientific soundness. Gene drive technology is a new technic consisting of gene engineering and on-field monitoring of its transgenes. The case in point is the inappropriateness of Bt-transgenes. Practically, gene drive can be an alternative to Bacillus thuringiensis in pest control for increased safety and environmental protection.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Determination of Quality Index of Eskişehir Transition Zone Agricultural
           Research Institute Soils by Linear Combination Technique

    • Authors: Hüseyin ŞENOL; Fatih KIZILASLAN
      Abstract: Soil is the most important component of the biosphere that hosts life on earth. Evaluation of soil quality is important for the sustainability of food security. In this study, it was aimed to determine the soil quality index of the soils in the central campus of the Eskişehir Transition Zone Agricultural Research Institute. In the study, the study area was divided into grids of 100 m X 100 m and 242 soil samples were taken. Twenty different properties including texture, HA, TK, SN, AS, OM, EC, pH, lime, P, K, Ca, Mg, Na, Mn, Zn, Fe and Mn were analyzed in soil samples. The determined criteria were weighted using the analytical hierarchy process. Soil quality index was calculated from the obtained data, and the spatial distribution map was obtained using the Inverse Distance Weighted Interpolation (IDW) method. There is no salinity problem in soils with slightly alkaline reaction. While the lime content of 19.01% of the soils was classified as too calcareous, the organic matter content was determined to be low in 70.25% of the soil. Soils are generally fine-textured and 69.84% of them are determined in clay texture class. While the bulk density values of the soils were between 1.07 g/cm3 and 1.59 g/cm3, the field capacity and wilting point varied between 14.85-46.17%, 9.53%-37.18%, respectively. As a result of the study, it was determined that 6.6% of the study area is very low, 68.6% is low, 24.8% is in the good soil quality class.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • The Effect of Nitrogen Fertilizer Forms and Humic Acid Treatments on Fixed
           Oil and Alkaloid Contents of Poppy (Papaver somniferum L.)

    • Authors: Halil ALTINTAŞ; Nimet KARA
      Abstract: The research was carried out to investigate the effects of different nitrogen fertilizer forms (ammonium sulfate, nitropower and urea) and their treatments with humic acid on the fixed oil and alkaloid content of poppy. Experiment was set up according to the randomized complete blocks design by using the “Ofis 4” poppy variety in Isparta conditionsEffect on fixed oil content of poppy of fertilizer forms and their treatments with humic acid were statistically (p<0.01) significant, and the oil content was higher compared to control (nitrogen-free) and alone humic acid treatments. In terms of fixed oil content, themselves differences among alone nitrogen forms and their treatments with humic acid were not statistically significant. The fixed oil content between 42.72-44.41%, the morphine 0.588-0.789%, the codeine 0.090-0.152%, the oripavine 0.024-0.032%, the thebaine 0.028-0.092%, the papaverine 0.003%-0.005%, and the noscapine content 0.022-0.096% of poppy varied. As a result; all three forms of nitrogen fertilizer with humic acid in poppy can be applied due to the higher fixed oil and alkaloid content, and among these ammonium sulfate + humic acid combination can be recommended.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Lethal Effects of Different Biopesticides on Mecorhis ungarica (Herbst,
           1784) (Coleoptera: Rhynchitidae)

    • Authors: Asiye UZUN; Sinan DEMİR, Ozan DEMİRÖZER
      Abstract: Rose weevil, Mecorhis ungarica, is an important pest that causes economic losses in oil rose production areas. In the present study, the lethal effects on adult individuals of this pest of different biopesticides were investigated under laboratory conditions. The experiment was performed in a randomized plot design with 10 replications and 5 adults in each replication. BIM-001 of Beauveria bassiana and commercial preparations 1.5% Lecanicillium lecani strain V1-1 (Nibortem), 1.5% Beauveria bassiana strain Bb-1 (Nostalgist) and Deltamethrin (Delmetrin) were used. The spore concentration of each preparation or isolate was applied to the transparent plastic boxes containing the adults by spraying under 1 atm pressure for 10 seconds (0.5 ml/cm2). Observations were made on the 3rd, 7th and 15th days after the application by recording the number of dead and alive. No difference was observed between the control and other biological origin biopesticides and B. bassiana BIM-001 isolate, except for the chemical-based pesticide Delmetrin, in the mortality values that occurred 3 days after the application in adult individuals of the rose weevil beetle. There was no difference between the mortality values of Nibortem, Nostalgist and B. bassiana BIM-001 isolate 7 days after the application, while there was no statistical difference between Delmethrin and Nibortem 15 days later.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Comparison of the Biological Diversity Parameters of Hexapoda Species
           Living on the Soil Surface in Different Ecosystems in Balcalı (Adana)

    • Authors: Gülbarış OĞUZ; Gökhan AYDIN, Mehmet Rifat ULUSOY
      Abstract: This study was carried out in different ecosystems in Adana province Çukurova University Balcalı Campus between October 2017 and September 2018 to compare the biodiversity parameters of Hexapoda species that live on the soil surface in different ecosystems. Field studies were carried out by using the pitfall trap sampling method in a total of 8 different habitats: five agroecosystems (Vegetable, Citrus, Olive, Pomegranate, Vineyard) where agricultural activities are continuing, two pasturelands where agricultural activities are not carried out today and afforestation Area with Pinus brutia.According to Shannon-Wiener (H`) and Simpson Diversity (D) index results, the most diverse habitat was found to be Mr1 with values of 2.011 and 0.8244. The habitat with the lowest calculated diversity index values was the NA sample area, respectively, with 0.7675 and 0.3285. The Simpson values were calculated in the NA habitat with the highest value of 0.6715 depending on the biodiversity parameter results and in the Mr1 habitat with the lowest value of 0.1756. Shannon and Simpson Evenness interspecies population density values were determined in the AAl habitat with 0.9629 and 0.8909. According to Sörenson Similarity index, agroecosystems were found similar to each other. According to this; among citrus and olive agroecosystems, 0.636; among Citrus and Vineyard ecosystems, 0.632; similarity values were determined. The study showed that the natural areas were effective in regaining insect diversity.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
  • Assessing the Acute Toxicity of Chlorantraniliprole and Flubendiamide in
           Bombus terrestris Workers of Different Ages

    • Authors: İsmail Yaşhan BULUŞ; Asiye UZUN, Ozan DEMİRÖZER, Ayhan GÖSTERİT
      Abstract: Bombus terrestris colonies are used for pollination in greenhouse tomato cultivation. Different-ages workers in these colonies involved in foraging activities in line with the necessities of the colony face the risk of exposure to chemicals used. Therefore, exposure of forager workers to chemicals directly and other individuals in the colony indirectly may affect the pollination performance of colonies. For this reason, knowing the effect of chemicals used in pest control on bumblebees is also important in terms of effectively benefiting from colonies for pollination. This study was carried out to investigate the effects of the recommended doses of insecticide active ingredients with Chlorantraniliprole and Flubendiamide (12 g/100 L water and 15 g/100 L water, respectively), which are highly preferred against Tuta absoluta pest in tomato cultivation, on B. terrestris worker bees of different ages. Insecticides were applied to workers of 1 day, 3 days, 7 days, and 10 days of age by spraying method and the total of 60 microcolonies were prepared, 15 each in each age group. Microcolonies formed by workers exposed to insecticides were checked on the 1st, 3rd, 5th, and 7th days and the number of dying worker bees was recorded. When the results were examined, the total workers mortality rate in all age and experiment groups remained below 25%. According to the International Organization for Biological Control (IOBC) toxicity scale, plant protection products with the active ingredient Chlorantraniliprole and Flubendiamide used in the study were found to be non-toxic to B. terrestris worker bees of different ages.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
       
 
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