66 research outputs found
E-scooter micro-mobility application for postal service: the case of turkey for energy, environment, and economy perspectives
No full textIn this research, the advantages of the e-scooter tool used in the mail or package delivery process were discussed by considering the Turkish Post Office (PTT) data in the districts of Istanbul (Kadikoy, uskudar, Kartal, and Maltepe) in Turkey. The optimization Poisson regression model was utilized to deliver the maximum number of packages or mails with minimum cost and the shortest time in terms of energy consumption, cost, and environmental contribution. Statistical and optimization results of dependent and independent variables were calculated using numerical and categorical features of 100 e-scooter drivers. The Poisson regression analysis determined that the e-scooter driver\"s gender (p|0.05 < 0.199) and age (p|0.05 < 0.679) factors were not effective on the dependent variable. We analysed that the experience in the profession (tenure), the size of the area responsible, and environmental factors is effective in the e-scooter distribution activity. The number of packages delivered was 234 in a day, and the delivery cost per package was calculated as 0.51 TL (Turkish Lira) for the optimum values of the dependent variables. The findings show that the choice of e-scooter vehicle in the mail or package delivery process is beneficial in terms of time, cost, energy, and environmental contribution in districts with higher population density. As the most important result, the operation of e-scooter vehicles with electrical energy shows that it is environmentally friendly and has no CO2 emission. The fact that the distribution of packages or mail should now turn to micro-mobility is emerging with the advantages of e-scooter vehicles in the mail and package delivery. Finally, this analysis aims to provide a model for integrating e-scooters in package or mail delivery to local authorities, especially in densely populated areas
Estimation of postal service delivery time and energy cost with e-scooter by machine learning algorithms
No full text© 2022 by the authors.This research aims to estimate the delivery time and energy cost of e-scooter vehicles for distributing mail or packages and to show the usage efficiency of e-scooter sharing services in postal service delivery in Turkey. The machine learning (ML) methods used to implement the prediction of delivery time and energy cost as output variables include random forest (RF), gradient boosting (GB), k-nearest neighbour (kNN), and neural network (NN) algorithms. Fifteen input variables under demographic, environmental, geographical, time, and meta-features are utilised in the ML algorithms. The correlation coefficient (R2) values of RF, GB, NN, and kNN algorithms were computed for delivery time as 0.816, 0.845, 0.821, and 0.786, respectively. The GB algorithm, which has a high R2 and the slightest margin of error, exhibited the best prediction performance for delivery time and energy cost. Regarding delivery time, the GB algorithm’s MSE, RMSE, and MAE values were calculated as 149.32, 12.22, and 6.08, respectively. The R2 values of RF, GB, NN, and kNN algorithms were computed for energy cost as 0.917, 0.953, 0.400, and 0.365, respectively. The MSE, RMSE, and MAE values of the GB algorithm were calculated as 0.001, 0.019, and 0.009, respectively. The average energy cost to complete a package or mail delivery process with e-scooter vehicles is calculated as 0.125 TL, and the required time is approximately computed as 11.21 min. The scientific innovation of the study shows that e-scooter delivery vehicles are better for the environment, cost, and energy than traditional delivery vehicles. At the same time, using e-scooters as the preferred way to deliver packages or mail has shown how well the delivery service works. Because of this, the results of this study will help in the development of ways to make the use of e-scooters in delivery service even more efficient
Bazı yerli doğal zeolitlerin ıslanma ısıları ve kullanım alanları
No full textTez (yüksek lisans) - Anadolu ÜniversitesiAnadolu Üniversitesi, Fen Bilimleri Enstitüsü, Fizik Anabilim DalıKayıt no: 247061Bu çalışmada Gördes, Bigadiç ve Sivas yörelerinden alınan bazı yerli doğal zeolitlerin ve modifiye (Na+,Ca++) formlarının ıslanma ısıIarı ve sulu ortamlardaki davranışlarının çeşitli çözeltilerin (1 N Na+,Ca++ ve 2 N Na+,Ca++) pH değeri üzerine etkisi incelenmiştir. Yurdumuzun çeşitli yörelerinden alınan klinoptilolitler XRD, DTA ve TGA yöntemleri ile karakterize edilmiştir. Isıtmalı yığın yöntemi ile 2 N'lik Na+ ve Ca++ iyonik formları hazırlanmıştır. Numunelerin % nem içerikleri tayin edildikten sonra yapılan deneylerle ıslanma ısıları (J/g) tayin edilmiştir. Deneyler sonucu, eğer doğal halde kullanılacaksa yüksek ıslanma ısısı değeri sebebiyle en uygun zeolitin Gördes yöresine ait olduğu sonucuna varılmıştır. Ca++ modifiye formlar arasında da Gördes yöresinden alınan zeolit en yüksek ıslanma ısısı değerine sahiptir. Na+ formlar arasında ise Bigadiç yöresinden alınan zeolitin ıslanma ısısı daha iyi çıkmıştır. Zeolitin çeşitli sulu ortamdaki davranışını incelemek için çeşitli çözeltiler (1 N Na+,Ca++ ve 2 N Na+,Ca++) içine zeolit atılarak pH ölçümleri alınmıştır. Yapılan deneyler sonucu, zeolitin H+ alıcısı ve H+ vericisi olarak ikili davranış sergileyip, çözeltileri nötralleştirme eğiliminde olduğu sonucuna varılmıştır. Bütün deneylerde pH sonuçları üzerinde en etkili olan Gördes yöresine ait zeolitin aynı zamanda en hızlı etkiyi gösterdiği görülmüştür. Böylece doğal zeolitlerin buz çözücü olarak kullanılabileceği öngörülmüştür
Classification Of Novel Soil Streptomycetes As Streptomyces Aureus Sp. Nov., Streptomyces Laceyi Sp. Nov. And Streptomyces Sanglieri Sp. Nov
No full textThe taxonomic positions of soil isolates known as Streptomyces groups A, B and C were clarified. Comparative 16S rDNA sequence studies indicated that representatives of all three taxa formed distinct phyletic lines within the Streptomyces tree though the group A strains were shown to be related to Streptomyces griseus and associated validly described species. The taxonomic integrity of all three groups was highlighted by DNA:DNA relatedness and ribotype data though the group A strains encompassed a higher degree of genetic variation than the group B and C strains. In light of these and earlier phenotypic data it is proposed that Streptomyces groups A, B and C be given species status as Streptomyces sanglieri sp. nov., Streptomyces aureus sp. nov. and Streptomyces laceyi sp. nov., respectively.833245255Atalan, E., Manfio, G.P., Ward, A.C., Kroppenstedt, R.M., Goodfellow, M., Biosystematic studies on novel streptomycetes from soil (2000) Antonie van Leeuwenhoek, 77, pp. 337-353Beijerinck, M.W., Mutation bei Mikroben (1912) Folia Mikrobiol (Delft), 1, pp. 4-100Bouchek-Mechiche, K., Gardan, L., Normand, P., Jouan, B., DNA relatedness among strains of Streptomyces pathogenic to potato in France: Description of three new species, S. europaeiscabiei sp. nov. and S. stelliscabieisp. nov. associated with common scab, and S. reticuliscabiei sp. nov. associated with netted scab (2000) Int. J. Syst. Evol. Microbiol., 50, pp. 91-99Chun, J., Computer - Assisted Classification and Identification of Actinomycetes (1995), PhD, University of Newcastle, Newcastle upon Tyne, UKChun, J., Goodfellow, M., A phylogenetic analysis of the genus Nocardia with 16S rRNA gene sequences (1995) Int. J. Syst. Bacteriol., 45, pp. 240-245Chun, J., Atalan, E., Kim, S.-B., Kim, H.-J., Hamid, M.E., Trujillo, M.E., Rapid identification of streptomycetes by artificial neural network analysis by pyrolysis mass spectra (1993) FEMS Microbiol. Lett., 114, pp. 115-120Chun, J., Atalan, E., Ward, A.C., Goodfellow, M., Artificial neural network analysis of pyrolysis mass spectrometry data in the identification of Streptomyces strains (1993) FEMS Micobiol. Lett., 107, pp. 321-326Felsenstein, J., Evolutionary trees from DNA sequences: A maximum likelihood approach (1981) J. Mol. Evol., 17, pp. 368-376Felsenstein, J., Confidence limits on phylogeny: An approach using the bootstrap (1985) Evolution, 39, pp. 783-791Felsenstein, J., PHYLIP (phylogenetic inference package), version 3.5c (1993), University of Washington, Department of Genetics, Seattle, USAFerguson, E.V., Ward, A.C., Sanglier, J.-J., Goodfellow, M., Evaluation of Streptomyces species - Groups by pyrolysis mass spectrometry (1997) Zbl. Bakt., 285, pp. 169-181Fitch, W.M., Margoliash, E., Construction of phylogenetic trees: A method based on mutation distances as estimated from cytochrome C sequences is of general applicability (1967) Science, 155, pp. 279-284Goodfellow, M., Manfio, G.P., Chun, J., Towards a practical species concept for cultivable bacteria (1997) Species: The Units of Diversity, pp. 25-29. , Claridge M.F., Dawah H.A. and Wilson M.R. (eds), Chapman & Hall, LondonGoyer, C., Faucher, E., Beaulieu, C., Streptomyces caviscabies sp. nov., from deep-pitted lesions in potatoes in Quebec, Canada (1996) Int. J. Syst. Bacteriol., 46, pp. 635-639Jones, K.L., Fresh isolates of actinomycetes in which the presence of sporogenous aerial mycelia is a fluctuating characteristic (1949) J. Bacteriol., 57, pp. 141-145Jukes, T.H., Cantor, C.R., Evolution of protein molecules (1969) Mammalian Protein Metabolism, 3, pp. 21-132. , Munro H.N. (ed.), Academic Press, New YorkKämpfer, P., Kroppenstedt, R.M., Dott, W., A numerical classification of the genera Streptomyces and Streptoverticillium using miniaturized physiological tests (1991) J. Gen. Microbiol., 137, pp. 1831-1891Kim, B., Sahin, N., Minnikin, D.E., Zakrzewska, J., Czerwinska, J., Mordarski, M., Classification of thermophilic streptomycetes including the description of Streptomyces thermoalcalitolerans sp. nov (1999) Int. J. Syst. Bacteriol., 49, pp. 7-17Kim, B., Al-Tai, A.M., Kim, S.B., Somasundaram, P., Goodfellow, M., Streptomyces thermocoprophilus sp. nov., a cellulase - Free endo - Xylanase - Producing streptomycete (2000) Int. J. Syst. Evol. Microbiol., 50, pp. 505-509Kim, D., Chun, J., Sahin, N., Hah, Y.C., Goodfellow, M., Analysis of thermophilic clades within the genus Streptomyces by 16S ribosomal DNA sequence comparison (1996) Int. J. Syst. Bacteriol., 46, pp. 581-587Kim, S.B., Falconer, C., Williams, E., Goodfellow, M., Streptomyces thermocarboxydovorans sp. nov. and Streptomyces thermocarboxydus sp. nov., two moderately thermophilic carboxydotrophic species from soil (1998) Int. J. Syst. Bacteriol., 48, pp. 59-68Kluge, A.G., Farris, F.S., Quantitative phyletics and the evolution of anurans (1969) Syst. Zool., 18, pp. 1-32Korn, F., Weingärtner, B., Kutzner, H.J., A study of twenty actinophages: Morphology, serological relationship and host range (1978) Genetics of the Actinomycetales, pp. 251-270. , Freerksen E., Tarnok I. and Thumim J.H. (eds), Gustav Fischer Verlag, Stuttgart, GermanyKrainsky, A., Die Aktinomyceten und ihren Bedeutung in der Natur (1914) Zentralbl. Bakteriol. Parasitenkd Infektionskr Hyg. Abt. II, 41, pp. 649-688Labeda, D.P., DNA relatedness among strains of the Streptomyces lavendulae phenotypic cluster group (1993) Int. J. Syst. Bacteriol., 43, pp. 822-825Labeda, D.P., DNA relatedness among the Streptomyces fulvissimus and Streptomyces griseoviridis phenotypic cluster groups (1998) Int. J. Syst. Bacteriol., 48, pp. 829-832Labeda, D.P., Lyons, A.J., The Streptomyces violaceusniger cluster is heterogeneous in DNA relatedness among strains: Emendation of the descriptions of S. violaceusniger and Streptomyces hygroscopicus (1991) Int. J. Syst. Bacteriol., 41, pp. 398-401Labeda, D.P., Lyons, A.J., DNA relatedness among strains of the sweet potato pathogen Streptomyces ipomoea (Person and Martin 1940) Waksman and Henrici 1948 (1992) Appl. Environ. Microbial., 58, pp. 532-535Manchester, L., Pot, B., Kersters, K., Goodfellow, M., Classification of Streptomyces and Streptoverticillium species by numerical analysis and electrophoretic protein patterns (1990) Syst. Appl. Microbiol., 13, pp. 333-337Manfio, G.P., Zakrzewska-Czerwinska, J., Atalan, E., Goodfellow, M., Towards minimal standards for the description of Streptomyces species (1995) Biotechnologia, 7-8, pp. 242-253Marmur, J., Doty, P., Determination of base composition of deoxyribonucleic acid from its denaturation temperature (1962) J. Mol. Biol., 5, pp. 109-118Millard, W.A., Burr, S., A study of twenty - Four strains of Actinomyces and their relation to types of common scab of potato (1926) Ann. Appl. Biol., 13, pp. 580-644Mordarski, M., Goodfellow, M., Williams, S.T., Sneath, P.H.A., Evaluation of species groups in the genus Streptomyces (1986) Biological, Biochemical and Biomedical Aspects of Actinomycetes, B, pp. 517-525. , Szabó G., Biró S. and Goodfellow M. (eds), Akadémiai Kiadó, BudapestOkanishi, M., Akagawa, H., Umezawa, H., An evaluation of taxonomic criteria in streptomycetes on the basis of deoxyribonucleic acid homology (1972) J. Gen. Microbiol., 72, pp. 49-58Saitou, N., Nei, M., The neighbor - Joining method: A new method for reconstructing phylogenetic trees (1987) Mol. Biol. Evol., 4, pp. 406-425Saintpierre, D., Amir, H., Pineau, R., Sembiring, L., Goodfellow, M., Streptomyces yatensis sp. nov., a novel bioactive streptomycete isolated from a New-Caledonian ultramafic soil (2002) Antonie van Leeuwenhoek, , (in press)Sambrook, J., Fritsch, E.F., Maniatis, T., (1989) Molecular Cloning: A Laboratory Manual, , 2nd edn. Cold Spring Harbor Laboratory Press, New YorkSembiring, L., Ward, A.C., Goodfellow, M., Selective isolation and characterisation of members of the Streptomyces violaceus niger clade associated with the roots of Paraserianthes falcataria (2000) Antonie van Leeuwenhoek, 78, pp. 353-366Shirling, E.B., Gottlieb, D., Cooperative description of type cultures of Streptomyces. III. Additional species descriptions from first and second studies (1968) Int. J. Syst. Bacteriol., 18, pp. 279-291Shirling, E.B., Gottlieb, D., Cooperative description of type cultures of Streptomyces. IV. Species descriptions from the second, third and fourth studies (1969) Int. J. Syst. Bacteriol., 19, pp. 391-512Takeuchi, T., Sawada, H., Tanaka, F., Matsuda, I., Phylogenetic analysis of Streptomyces spp. causing potato scab based on 16S rRNA sequences (1996) Int. J. Syst. Bacteriol., 46, pp. 476-479Tresner, H.D., Davies, M.C., Backus, E.J., Electron microscopy of Streptomyces spore morphology and its role in species identification (1961) J. Bacteriol., 81, pp. 70-80Waksman, S.A., Family Actinomycetaceae Buchanan and family Streptomycetaceae Waksman and Henrici (1957) Bergey's Manual of Determinative Bacteriology, pp. 744-825. , Breed R.S., Murray E.G.D. and Smith N.R. (eds), 7th edn. The Williams & Wilkins Co., Baltimore, USAWaksman, S.A., Waksman, S.A., Lechevalier, H.A., (1953) Guide to the Classification and Identification of Actinomycetes and Their Antibiotics, , The Williams & Wilkins Co., Baltimore, USAWaksman, S.A., Henrici, A.T., Family III. Streptomycetaceae Waksman and Henrici (1948) Bergey's Manual of Determinative Bacteriology, 6, pp. 929-980. , Breed R.S., Murray E.G.D. and Hitchens A.P. (eds), 6th edn. The Williams & Wilkins Co., Baltimore, USAWayne, L.G., Brenner, D.J., Colwell, R.R., Report of the ad hoc committee on reconciliation of approaches to bacterial systematics (1987) Int. J. Syst. Bacteriol., 37, pp. 463-464Williams, S.T., Vickers, J.C., Detection of actinomycetes in a natural environment - Problems and perspectives (1988) Biology of Actinomycetes '88, pp. 265-270. , Okami Y., Beppu T. and Ogawara H. (eds), Japan Societies Press, TokyoWilliams, S.T., Goodfellow, M., Alderson, G., Wellington, E.M.H., Sneath, P.H.A., Sackin, M.J., Numerical classification of Streptomyces and related genera (1983) J. Gen. Microbiol., 129, pp. 1743-1813Zarko-Postawka, M., Hunderuck, M., Mordarski, M., Zakrzewska-Czerwinska, J., Organisation and nucleotide sequence analysis of the ribosomal gene set (rrn B) from Streptomyces lividans (1997) Gene, 185, pp. 231-23
Factors related to Internet Gaming Disorder: Comparing reports of adolescents and their parents in Türkiye and the United Kingdom.
No full text©2025, Taylor & Francis. The attached document (embargoed until 18/08/2026) is an author produced version of a paper published in European Journal of Developmental Psychology uploaded in accordance with the publisher’s self-archiving policy. The final published version (version of record) is available online at the link. Some minor differences between this version and the final published version may remain. We suggest you refer to the final published version should you wish to cite from it
Family Factors and Internet Gaming Disorder among Adolescents: A Systematic Review.
No full text©2025, Sage Publications. This is an author produced version of a paper published in International Journal of Developmental Science, uploaded in accordance with the publisher’s self- archiving policy. The final published version (version of record) is available online at the link. Some minor differences between this version and the final published version may remain. We suggest you refer to the final published version should you wish to cite from it
Effect of time delay and storage temperature on blood gas and acid-base values of bovine venous blood
No full textThe aim of this study was to investigate possible changes in the gas composition and acid-base values of bovine venous blood samples stored at different temperatures (+4, 22 and 37 degreesC) for up to 48 h. Five healthy cattle were used in the study. A total of 15 blood samples collected from the animals were allocated into three groups, which were, respectively, then stored in a refrigerator adjusted to +4 degreesC (Group I, n = 5), at a room temperature of about 22 degreesC (Group II, n = 5) and in an incubator adjusted to 37 degreesC (Group 111; n = 5) for up to 48 It. Blood gas and acid-base values were analysed at 0 (baseline), 1, 2, 3, 4, 5, 6, 12, 24, 36 and 48 h of storage. A significant decrease (p < 0.001) was found, in the pH of the refrigerated blood after 5 h and its maximum decrease was recorded at 48 h as 0.04 unit. There were also significant alterations (p < 0.001) in the blood pH of the samples stored at room temperature and in the incubator after 2 and 3 h, respectively. The maximum mean alteration in pCO(2) value for Group I was -0.72 kPa during the assessment, while for groups II and III, maximum alterations in pCO(2) were detected as +2.68 and +4.16 kPa, respectively. Mean pO(2) values increased significantly (p < 0.001) for Group I after 24 It and for Group II after 6 h, while a significant decrease was recorded for Group III after 24 h (p < 0.001). Base excess (BE) and bicarbonate (HCO3) fractions decreased significantly for all the groups during the study, compared to their baseline values. In conclusion, acid-base values of the samples stored at 22 and +4 degreesC were found to be within normal range and could be used for clinical purposes for up to 12 and 48 h, respectively, although there were small statistically significant alterations. (C) 2003 Elsevier Ltd. All rights reserved
Mental Health Literacy in Adults: Turkish Mothers’ Knowledge of Posttraumatic Stress Disorder
No full text© 2025, Hogrefe. This is an author produced version of a paper published in Kindheit und Entwicklung uploaded in accordance with the publisher’s self- archiving policy. The final published version (version of record) is available online at the link. Some minor differences between this version and the final published version may remain. We suggest you refer to the final published version should you wish to cite from it
The Influence of Pesticides on the Spore Viability, Toxin Stability and Larvicidal Activity of Bacillus sphaericus 2362 Strain
No full textIn this study, 12 different commercial pesticides, in-cluding 5 fungicides, 5 herbicides, 1 aphicide and 1 acari-cide, were investigated for their effects on spore viability, toxin stability and larvicidal activity of a mosquito patho-genic B. sphaericus 2362 strain. Minimal inhibitory con-centrations (MICs) of each pesticide were determined after 48 h incubation of B. sphaericus 2362 strain. Ac-cording to MIC results, all pesticides showed various inhibitory effects on the growth of the test bacterium. Particularly, the pesticides which contain TCA, hymexa-zol, copper sulphate, hexythiazox, 2,4-D Amine, copper inhibited spore germination significantly and bacterial growth even at the lowest tested concentrations. Our re-sults indicated that various commercial pesticides in dif-ferent concentrations reduced the spore viability signifi-cantly and heat-resistant spore numbers of B. sphaericus 2362 strain. In general, the pesticides decreased the spore numbers 104-105-fold compared to initial ones. Further-more, it was observed that the larvicidal activity was completely lost when it was grown at the concentration of MIC values or higher. Indeed, SDS-PAGE analysis con-firmed that the binary toxin proteins, 41.9 kDa and 51.4 kDa, were lost at the MIC values and higher concentra-tions although parasporal crystals did not disappear in the much lower pesticide concentration
Effect of Gramoxone((R)) herbicide on spore viability and larvicidal activity of Bacillus sphaericus 2362 and 1593 strains
No full textSpore viability and larvacidal activity of B. sphaericus 2362 and 1593 strains were monitored in media containing Gramaxone(R) herbicide. Minimal Inhibitory Concentrations (MICs) of the herbicide were determined for each of the mosquito pathogenic strains. Addition of paraquat into the media suppressed the spore germination after 24 and 48 h, but no influence was observed on parasporal inclusions containing insecticidal toxin proteins. SDS-PAGE analysis confirmed the presence of the so-called binary toxin comprising two proteins that are deposited in parasporal crystals treated with the herbicide. Moreover, the number of heat-resistant spores and total cell numbers of test strains were reduced drastically when test strains were grown in media containing 50, 100 and 200 mg ml(-1) of paraquat. In contrast, there were no differences between heat-resistant spore counts of both strains when grown under diet concentrations of less than 50 mg ml-1. This study revealed that B. sphaericus 2362 strain has a higher mosquito larvacidal activity than 1593 strain in the presence of paraquat in the media. Thus, the use of Gramaxone(R) herbicide can have harmful effects on mosquitocidal biological control agents
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