Bursa Uludağ Üniversitesi Dergileri

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A cheaply non-destructive techique to estimate honey quality: Thermal imaging and machine learning
(Bursa Uludağ Üniversitesi, 2024-04-16) Kibar, Mustafa
The aim of this study was to estimate honey quality based on proline and Brix content using a thermal imaging and machine learning algorithm. The proline, Brix and color properties of twenty honey samples were determined. Proline and Brix values were classified and estimated using the classification and regression tree (CART) algorithm. The mean proline and Brix content in honey samples was 678.83±192.16 mg/kg and 83.2±0.79%, respectively. CART analysis revealed that high proline honey samples had L values above 48.143 and b* values below 35.416. In contrast, honey samples with low Brix values were characterized by L and a* values below 55.860 and 53.660, respectively, and were identified as freshly harvested. The CART algorithm classified the proline and Brix values with an accuracy of 95% and 100%, respectively (p< 0.001). As a result, whitish, bluish, blackish and greenish honeys are of higher quality due to high proline and low Brix content. However, to accurately assess honey quality based on its color traits, comprehensive studies with more honey samples and origin, are required.
A comparative study on the quality of honey bee (Apis mellifera) queens developed from larvae after the collection of royal jelly
(Bursa Uludağ Üniversitesi, 2022-12-08) Shaara, Hossam F. Abou
Rearing bee queens is almost done utilizing grafting young larvae while the effects of grafting using old larvae after the collection of royal jelly on the quality of queens are not known. In fact, the production of royal jelly depends on grafting, then discarding the larvae to collect the royal jelly. This study aimed to investigate this point by grafting old larvae after removing them from their original cells without food. Larvae at age about 2 days were grafted into plastic queen cell cups (selection and grafting method or S&G method) leaving royal jelly behind and then resultant queens were compared with naturally reared ones (or NQ). The study showed the absence of significant variations between the queens reared from the two methods in characteristics of queens and cells. Meanwhile, no significant differences were found in regard to the performance of colonies. The colonies with queens from S&G method had slightly higher performance than those with NQ. The study concluded that grafting using old larvae without their original food does not impair the quality of queens. During the production of royal jelly, larvae may be grafted into new cells to continue their normal development instead of discarding them.
A DC~1.6 GHz distributed amplifier with GaAs MESFETs
(Uludağ Üniversitesi, 2016-08-31) Hiçdurmaz, Bahadır; Özzaim, Cengiz
In this study, a DC ~ 1.6 GHz bandwidth distributed amplifier (DA) is fabricated in printed circuit board (PCB). The scattering (S-) parameters of the distributed amplifier are measured and compared with simulated results. In characterization of the amplifier, small-signal microwave Sparameters given at some discrete frequencies of transistors are utilized. According to obtained results, it is observed that measured and simulated results are in relatively good agreement.
A refrigerated road transport application
(Uludağ Üniversitesi, 1999) Horuz, İlhamı; Uludağ Üniversitesi/Mühendislik Mimarlık Fakültesi/Makine Mühendisliği Bölümü.
The study included an investigation into the use of Vapour Absorption Refrigeration (VAR) systems in road transport vehicles using the waste heat in the exhaust gases of the main propulsion unit as the energy source. This would provide an alternative to the conventional Vapour Compressian Refrigeration (VCR) system and its associated Internal Combustion (IC) Engine. The proposed system is almost maintenance free, having only one component, the solution pump, with moving parts. Additionally, the VAR system runs quietly and primary fuel energy used to drive the independent engine of the VCR system will be saved. There should also be savings in capital costs with the exclusion of the IC engine and the compressor of the conventional system. The effect on the main propulsion unit of inserting the VAR system into the exhaust system and how cooling can be provided during off-road/slow running conditions are also included in the studies.
A review of the Cape Gelidonya and Uluburun Shipwrecks shed light on Cyprus maritime activities
(2024-03) Günel, İlknur; GÜNEL, İLKNUR; Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Tarih Bölümü.; 0000-0002-8815-4818
Cyprus had an important place in the ancient Mediterranean trade thanks to its geostrategic location. The island, drew attention with its copper resources and ceramic products in the Bronze Age. Archaeological remains unearthed in Uluburun and Cape Gelidonya shipwrecks support this situation. The cargo of shipwrecks and the route they followed show both the extent of maritime trade during this period and Cyprus’ position in these commercial activities. The high ratio of Cypriot copper and ceramics to the total amount of goods in the shipwrecks is instructive in terms of understanding the role of Cyprus in the maritime activities. The hypothesis of their potential Cypriot origin is supported by the higher quantity of Cypriot-origin products found on these wrecks compared to others. The fact that Cyprus is an important port on the route followed by merchantships and even the view that it could be the initial departure point of them, makes it worth to consider. Accordingly, in this study, the Cape Gelidonya and Uluburun shipwrecks, and the Cypriot goods they contain are examined, and the active role of Cyprus in the maritime trade of
Abelterium: Geometric mosaics from the villae of Casa da Medusa and Quinta do Pião
(Uludağ Üniversitesi, 2017) Antonio, Jorge
The study of geometric mosaics from Casa da Medusa and Quinta do Pião has made a significant contribution towards understanding both the decorative project of these villae in Abelterium (Alter do Chão) and the Roman presence in this region. Geometric pavements in varying states of preservation were uncovered in several rooms. These are essentially polychrome mosaics, some displaying evidence of Baroque overdoing, consisting of white, ochre, yellow, pink, red, green, blue and grey tesserae, made from limestone, sandstone, marble and eventually from pottery.
About the 16th Colloquium of the International Association for the Study of the Ancient Mosaic AIEMA in Conímbriga, Rabaçal, São Simão and Santiago da Guarda, with excursion to Alter do Chão, Mértola, Milreu and Faro, 11th to 15th July 2025
(Bursa Uludağ Üniversitesi, 2021-11-30) Pessoa, Miguel; Rodrigo, Lino; Sales, Pedro
The announcement of the 16th International Colloquium of the International Association for the Study of the Ancient Mosaic AIEMA in Conímbriga (Condeixa-a-Nova), Rabaçal, São Simão (Penela) and Santiago da Guarda (Ansião), with excursion to Alter do Chão, Mértola, Milreu and Faro, (11 to 15 July 2025), led the event’s proponents, members of the Portuguese Association for the Study and Conservation of the Ancient Mosaic - APECMA, the Portuguese section of the International Association for the Study of Ancient Mosaic - AIEMA (based in Paris), to consider the availability of each one of the archaeological site teams involved to prepare this International Meeting in a timely and efficient way, and propose the Directorate-General for Cultural Heritage (DGPC) to take the opportunity provided by this event to present the new Conímbriga Mosaic Restoration Centre - which would strengthen the Movement for the Promotion of the Nomination of Conímbriga to the UNESCO World Heritage List.
The absurd aspect of the death of god
(Uludağ Üniversitesi, 2016) Kuçlu, Erhan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Sosyoloji Bölümü.
After the death of God we came up against the loss of supreme value and thus loss of meaning, some philosophers and some writers (especially absurdist ones) call the new world as chaotic and absurd. In this paper, we will investigate the relationship between the death of God and absurdity. Our main question: Does the death of God have the absurdist vein? For this inquiry, first of all, we will try to introduce what is the meaning of the-death-of-God in absurd literature and then we will make a short conceptual analysis of absurd to show relationship between them.
Abu Shakur al-Salimi and his theological identity within the scope of al-Tamhid fī Bayan al-Tawḥid
(Uludağ Üniversitesi, 2018) Kılavuz, Ulvi Murat; Uludağ Üniversitesi/İlahiyat Fakültesi.; 0000-0002-5095-9522
Even though al-Imām al-Māturīdī was praised by certain scholars, such as his master Abū Naṣr al-ʿIyāḍī, and was described later as the founder of Māturīdiyyah by both his school’s followers and his competitors, such as Fakhr al-Dīn al-Rāzī, it is clear that his school took form based on the ideational foundations of Abū Ḥanīfah. In places like Khurāsān and Transoxiana where Māturīdiyyah spreaded most, the most prominent followers have been the Ḥanafī scholars and the school was called Ḥanafiyyah/Māturīdiyyah because of its “dual-authoritative” nature. While Ḥanafīs of Samarqand embraced a more kalāmī/dialectical methodology much like al-Imām alMāturīdī, Ḥanafīs of Bukhārā had a more scripturalist/traditionalist attitude with some caution of rational interpretation (taʾwīl). No doubt that, despite his rational (grounded on raʾy) and interpretivist attitudes in the issues of fiqh, the fact that Abū Ḥanīfah had a more moderate and conservative attitude that is not completely contrary to that of Ahl al-ḥadīth in credal/theological issues had an effect on this. Even though he preserved his kalāmī methodology and style in congruence with his school and penned an entirely theological book named al-Tamhīd, Abū Shakūr al-Sālimī, a representative of Samarqand Ḥanafī/Māturīdī tradition, had some ideas and views compatible with the “conservative” Bukhārā-based Ḥanafī/Māturīdī position, probably because of perceiving Abū Ḥanīfah as the absolute authority. Nevertheless, it is possible to say that he followed and fused the ideas of both of two authorities, Abū Ḥanīfah and al-Imām al-Māturīdī, and at the same time, preserved his own authenticity.
Accountability through the annual reports of state universities in Turkey
(Uludağ Üniversitesi, 2017-10-20) Engin, Rıdvan; Demirbaş, Tolga; Uludağ Üniversitesi/İktisadi İdari Bilimler Fakültesi/Maliye Bölümü.
State universities in Turkey have been implementing performance-based budgeting system for about ten years. The system aims to improve the effectiveness of service delivery by enabling universities to allocate their resources according to their own specific objectives taking into account the views of their stakeholders. This system, which is based on outputs and results, requires state universities to disclose their performance level to the public through annual reports. The evidence on the accountability level of state universities in Turkey is very scarce. Therefore, this study aims to demonstrate to what extent the state universities in Turkey can account for their stakeholders through the annual reports they published. The authors conducted a content analysis of performance audit reports on 59 state universities published by the Turkish Court of Accounts, the external audit body, to achieve this goal.
Achilles on Skyros in the emblema from the house of Poseidon at Zeugma: Caracalla and the power of images
(Bursa Uludağ Üniversitesi, 2022-08-29) Caso, Laura
This iconographic and iconological analysis has shown the existence of a long tradition about this subject, that is Achilles on Skyros in the emblema from the House of Poseidon at Zeugma. This tradition dates back to the 1st century AD and it concerns the Roman mosaic and painting. The model of Achilles on Skyros travelled from the West to the East, especially from Italy (Rome and Pompeii) towards the eastern part of the Roman Empire. This model arrived in Zeugma on the Euphrates at the beginning of the third century AD, under Caracalla (211-217 CE). The rich owner (dominus) and client of the Poseidon Villa was to be a high officer of Caracalla belonging to Legio IV Scythica or Parthica. In fact Zeugma became the settlement of this Roman legion and the outpost against the Parthians, above all during the reign of Septimius Severus (193-211 CE) and under his successor Caracalla. The dominus of the Poseidon Villa made the imperial propaganda his own by choosing the subject of Achilles on Skyros, which was very favourite by Caracalla on the ideological level, as the subject of Alexander the Great (Cfr. Cassius Dio, Herodian, Scriptores Historiae Augustae). The myth of Achilles on Skyros is very ancient (Cfr. Cypria, Pindar, Sophocles, Euripides) and privileged by Roman (Domus Aurea) and Pompeian painting and mosaic dating back to the emperor Nero, ardent admirer both Achilles and Alexander the Great, as Caracalla.
Acting together for another world? Anti-globalisation and labour organisations
(Uludağ Üniversitesi, 2008) Queux, Stéphane Le
This article considers the extent to which the anti-globalisation movement might contribute to a revival of labour politics. The starting point is an awareness that trade unions and anti-globalists do not necessarily see eye to eye so that any assumption that they can readily join forces becomes problematical. Four fault lines are identified in relation to key areas of concern: i) political alternatives; ii) participatory democracy; iii) organic cohesion and inclusion; and iv) the renewal of activism. It is pointed out that while – in the view of leading analysts in this field of inquiry – the anti-globalisation movement does indeed offer a potential source and impetus for a revitalisation, this is no tame option, especially in the context of labour corporatism. However, a sensible shift in the way in which the international trade union organisations have recently been approaching these issues may signal a repositioning of labour as a catalyst of solidarity.
Acute effect of centrally injected Nesfatin-1 on some blood electrolytes and metabolites in rats
(Bursa Uludağ Üniversitesi, 2020-11-18) Bayram, Gökçen Güvenç; Ülger, Ebru Yalçın; Yalçın, Murat; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Fizyoloji Anabilim Dalı.; 0000-0002-1413-3651; 0000-0003-1756-1288; 0000-0002-5600-8162
Nesfatin-1 is a newly found food and water intake regulatory neuropeptide. Because it can regulate nutrition and thirst, nesfatin-1 may also have the potential to affect levels of blood electrolytes and metabolites. The current study was intended to resolve the acute influence of intra- cerebroventricularly injected nesfatin-1 on the levels of some blood electrolytes and metabolites in rats. The experiments were conducted on Sprague Dawley male rats. Nesfatin-1 (200 pmol) or saline (5 μL) was given the rats intracerebroven- tricularly. Central nesfatin-1 treatment caused increases in the concentrations of blood glucose, lactate, hematocrit, and hemoglobin without changing the blood pH, creatine, Na, K, Ca, Cl, and HCO3 levels. In conclusion, our findings show that the central nesfatin-1 could affect the concentrations of blood glucose, lactate, hematocrit, and hemo- globin without altering the blood electrolytes. This could be interpreted as the secondary effect of nesfatin-1 as a consequence of centrally injected nesfatin-1-evoked activation of sympathetic nerves.
Acute toxicity of abamectin (Insecticide) on Daphnia magna (Straus, 1820)
(Uludağ Üniversitesi, 2016-12-16) Azgın, Cansev; Göksu, Münir Ziya Lugal
Abamectin is used for the insect and mite pests control cotton, citrus fruit, vegetables, potatoes and other crops. Abamectin is not directly used in aquatic ecosystems, but it may have adverse impact on aquatic environment. The aim of this study was to determine the acute toxicity of abamectin (insecticide) on Daphnia magna (Straus, 1820) (Cladocera, Crustacea). D. magna were obtained from the Çukurova University Fisheries Faculty Freshwater Fish Research and Application Station. In the experiment, five different concentrations and one control group have been used. Each experiment was repeated two times. In this research, the static test method of acute toxicity test was used. The experiments were conducted under laboratory conditions at 20±2 oC. The results have been estimated with the dose-response data and were fitted with a log-logistic model by using R 3.0 statistical computation environment and DRC library. The 24-h and 48-h acute LC50 values were determined. According to the results, acute toxic effects researched Abamectin, the 24 h and 48 h LC50 acute toxic lethal concentration values for D. magna were calculated to be 0.020 µgl-1 and 0.0043 µgl-1 .
Acute toxicity of bentazone (herbicide) and chlorpyrifos (insecticide) on oreochromis niloticus (L., 1754) larvae (bioassay)
(Uludağ Üniversitesi, 2015-01-12) Azgın, Cansev; Göksu, Münir Ziya Lugal
In this study, in aquatic environments negative effects which may occur in order to have information about, the acute toxicity Bentazone (Herbicide) and Chlorpyrifos (Insecticide) which widely used in agriculture in Cukurova Region has been researched into larvae Oreochromis niloticus (L., 1754). In this study, the test fish O. niloticus larvae (average weight 1.21±0.52 g, average length 4.29±0.2 cm) were obtained from the Çukurova University Fisheries Faculty Freshwater Fish Research and Application Station. In the experiment, five different concentrations together with the control group were used 2 test series. In the present study, methods of bioassay test which static method has been applied. The study was carried out under laboratory conditions at 25±2 oC. The results has been estimated with the dose-response data were fitted a log-logistic model by using R 3.0 statistical computation environment and DRC library. The 24-h acute LC50 values were calculated. According to the results, acute toxic effects researched Bentazone (Herbicide) and Chlorpyrifos (Insecticide) the 24-h LC50 acute toxic lethal concentration values for Oreochromis niloticus (L., 1754) larvae were calculated Bentazone (Herbicide) LC50 14.86±0.19 mgl-1 and Chlorpyrifos (Insecticide) LC50 0.40±0.02 mgl-1.
Adiponectin and its protective effects
(Uludağ Üniversitesi, 2012) Guzel, Saime; Yalcin, Abdullah; Uludağ Üniversitesi/Veteriner Fakültesi.
Adiponectin (also referred to as GBP-28, apM1, AdipoQ and Acrp30) is one of the adipocytokines that is secreted by the white adipose tissue and is an important regulator of lipid and glucose metabolism. It is an insulin-sensitizing hormone with anti-diabetic, anti-inflammatory, anti-atherogenic and anti-proliferative properties. It was demonstrated that decreased serum adiponectin levels are associated with insulin resistance and type 2 diabetes. Furthermore, hypoadiponectinemia was shown to be associated with coronary artery disease. Several authors point out that high levels of circulating adiponectin reduce risk of coronary heart disease among type 2 diabetes patients. Adiponectin has also been shown to play an important role in the regulation of cell proliferation and tumorigenesis. Adiponectin, via its cognate receptors AdipoR1 and AdipoR2, inhibits cancer cell proliferation in vitro and supressess obesity-associated tumor growth in vivo (e.g. colorectal, gastric, liver, and breast cancer). Therefore, potential diagnostic and therapeutic usage of adiponectin has been subject of an increasing interest in recent years.
Adorno’s aesthetic theory: Aesthetic display of the empirical reality
(Bursa Uludağ Üniversitesi, 2022-03-16) Hatipoğlu, Özüm
Theodor Adorno’s Aesthetic Theory illuminates the basic question of the aesthetic claim to truth. Adorno’s text presents key philosophical questions about the nature of aesthetics. Through grounding Adorno’s aesthetic theory in Hegelian logic, this article explicates why and how the veracity of a modern artwork dwells in its claim to the truth of its own untruth. What is the relation between aesthetic truth and the objective truth of empirical reality? Can aesthetic truth disclose the truth of empirical reality? By relating negatively to what Adorno calls the empirical reality, modern artworks not only become identical to their nonidentity, but also present that which they are nonidentical with as their formative ground. If the truth of an object is mediated, aesthetic truth must disclose the degree of objectivity found in empirical reality. Consequently, aesthetic truth becomes for-itself a mediated truth, and aesthetic truth comes to reveal the mediatedness of empirical reality.
Adzuki beans (Vigna angularis), a traditional Chinese legume for sustainable agriculture and food production
(Bursa Uludağ Üniversitesi, 2019-06-12) Shahrajabian, Mohamad Hesam; Sun, Wenli; Khoshkharam, Mehdi; Zandi, Peiman; Cheng, Qi
Adzuki bean (Vigna angularis) is a traditional legume crop that plays a crucial role in the sustainability of both agricultural systems and in the food protein supply. As adzuki bean has been used for thousands of years in China as traditional Chinese medicine and foods, it has a great potential to be drug candidate or functional food materials. Adzuki is a good source of essential fatty acids, fiber, minerals and phytochemicals such as polyphenols and phytates. Legumes are nitrogen-fixing systems that have long been used for biological nitrogen fixation in agriculture. Biologically fixed nitrogen of adzuki beans can be yielded so that the hazards of the chemical fertilizers can be reduced. Because of the growing requests for plant production, especially protein and oils and also decrease the economic and environmental pressure on agro-eco systems, it emerges that grain legumes, adzuki bean included would play a major role in future cropping systems and sustainable agriculture. Legumes, especially those which have various medicinal effects can help to restore soil organic matter and reduce pests and diseases problems, and they may lead to more soil fertility. Adzuki beans have considerable potential globally to be a functional food for health promotion and diseases prevention in not only Asian countries, but also other parts of the world.
Aegean climate compatible ornamental grass species and visual properties for landscape design
(Bursa Uludağ Üniversitesi, 2020-06-22) Wallace, Meltem Yağmur; Salman, Ali
Landscape architecture is a multidisciplinary branch based on the principle of conservation and / or re-creation of ecological balance. Landscape design is the fusion of both living and inanimate material based on this principle. The plant material, which is absolute for ecological balance, is classified hierarchically and used in the form of trees, shrubs, climbers, groundcovers, and grass groups. Within this structure, ornamental grasses constitute a group which is relatively new and infrequently used in Turkey. Ornamental grasses - the group of plants that develop mainly in ground covering or bushy form - are ecologically prominent, due to relatively low water consumption and design prominent, due to contribution to landscape colour and motion. In this research, 21 species and its 14 cultivars of 10 grass genera, Acorus gramineus ‘Ogon’ and ‘Variegatus’; Carex comans ‘Bronze’; Carex morrowii ‘Ice Dance’; Carex oshimensis ‘Everest’ and ‘Evergold’; Carex testacea; Cortaderia selloana ‘Gold Band’ and ‘Silverstar’; Leymus arenarius; Liriope muscari and L. muscari ‘Variegata’; Miscanthus sinensis ‘Flamingo’ and ‘Zebrinus’; Muhlenbergia capillaris; Ophiopogon japonicus and O. japonicus ‘Variegatus’; Pennisetum viridescens; Pennisetum setaceum ‘Rubrum’ and P. villosum with Stipa tenuissima, were observed over a four season period in Aegean climatic conditions; in this process, the plants’ adaptation to the area together with the visual changes they demonstrated were examined. As a result, among the grass group plants sold for the landscape sector in the Bayındır district of Izmir, the species which provided open field adaptation and avoided visual deterioration were determined. Therefore, a guiding source has been produced for compatible ornamental grass species and their visual characteristics which can be used in landscape designs in Aegean and Mediterranean climates. In this direction, it is aimed to spread the use of these grasses in order increase biodiversity and expand the visual richness of environmentally friendly landscape designs.
Aerodynamic mechanisms on a ground-mounted solar panel at different wind directions
(Bursa Uludağ Üniversitesi, 2020-03-05) Yemenici, Onur; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Mühendisliği Bölümü.; 0000-0003-0011-8343
Aerodynamics mechanisms on a solar panel were studied using Computational Fluid Dynamics methodology at different wind directions. The wind velocity was chosen as 10 m/s that corresponding turbulent flow. The inclination angle of the panel was fixed as 25°, while the wind directions were varied as 180°, 135°, 45°, and 0°. Governing equations were solved by utilizing a finite volume method with a realizable k-ε turbulence model and standard wall functions. The results showed that the recirculation area occurred for the straight wind directions, but it was not observed for the oblique wind directions. The highest pressure coefficients occurred at the leading edges of the solar panel and they reduced to the trailing edge for all wind directions. The maximum drag and uplift coefficient was obtained at the wind direction of 00 and 180 0 , respectively.

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