126 research outputs found

    Anadolu Üniversitesi Podcast Projesi Anapod

    Get PDF
    Anapod Projesi̇ öğretim elemanlarının ders materyali üretimini kolaylaştırmasını amacıyla geliştirilmiş olanve açık ders materyallerinin üretilmesi için tasarlanmış bir modeldir. Bu proje, sadece Anadolu Üniversitesi değil diğer üniversitelerin öğrencilerine de katkıda bulunmayı hedefler

    The effects of changes at early age of nutrition on abdominal fat accumulation at slaughtered age in broiler chickens

    Get PDF
    Bu çalışma, Bursa Uludağ Üniversitesi Veteriner Fakültesinde H. Servet Şenel'in danışmanlığında Mustafa Eren tarafından yazılan "Broyler piliçlerde erken dönemdeki beslemede uygulanacak degişikliklerin kesim yaşındaki abdominal yağ birikimi uzerine etkileri" adlı doktora tezine dayanılarak hazırlanmıştır.Araştırmada günlük yaşta 151 adet erkek, 144 adet dişi Arbor Acres broyler civciv kullanılmıştır. Her grupta eşit sayıda erkek ve dişi civciv bulundurulmasına özen gosterilerek sekiz deneme grubu oluşturulmuştur. Butün gruplara 1. günden 5. gne ve 11. gunden 21. gune kadar 2987 Khal/kg metabolize olabilir enerji (ME) ve %21.82 ham protein (HP) içeren civciv başlangıç yemi ad libitum olarak yedirilmiştir. 22-56. günler arasında bütün gruplardaki hayvanlar 3047 Kkallkg ME ve %21.66 HP içeren etlik piliç yemini adlibitum olarak tüketmişler araştırmanın 5.-1 0. günleri arasında ise 6 giin sureyle % 0, % 2.5, % 5 ve % 7. 5 oranlanında bitkisel yag içeren dort adet izokalorik ve izonitrojenik deneme yemi 2x4 faktoriyel duzen içerisinde dört deneme grubuna adlibitum, diger dort deneme grubuna ise kıstlanarak yedirilmiştir. Yem kısıtlaması her hayvanın yaşama payı enerji gereksinimini karşılayabileceği miktarda yem tüketebilecegi şekilde düzenlenmiştir.In the experiment day-old 151 male and 144 female Arbor Acres broiler chicks were used. There were 8 treatments groups and each was contained equal number of male and female chicks. All groups consumed starter feed containing 2987 kcallkg metabolizable energy (ME) and 21. 82 %crude protein (CP) ad libitum between 1st - 5th and 11th- 21st days. The same groups were fed grower feed containing 3047 kcallkg ME and 21.66% CP ad libitum between 2 2nd and 5~ days. Between 5th - 1 (Jh days of the experiment chicken were alloted to four isocaloric and isonitrogenous treatments containing 2 experimental groups therefore 2x4 factorial design was used. Treatment 1 did not contain any vegetable oil, Treatment 11, Ill and IV contained 2.5. 5.0 and 7. 5 % vegetable oil respectively. One group in each treatment fed ad libitum and other group was fed restricted level. The results of this experiment showed that the level of vegetable oil in isocaloric and isonitrogenous broiler feeds had no effect on abdominal fat content, feed efficiency, body weight and carcass weight on 49th and 56th days and also on dry matter, crude protein and fat content of breast meat and leg meat on 5(Jh day of the trial, but feed restriction between 5th - 1Oth days increased feed efficiency on 49th and 56th days and decreased abdominal fat content on only 56th day of the tria

    Burst-mode thulium all-fiber laser delivering femtosecond pulses at a 1 GHz intra-burst repetition rate

    Get PDF
    We report on the development of, to the best of our knowledge, the first ultrafast burst-mode laser system operating at a central wavelength of approximately 2 μm, where water absorption and, consequently, the absorption of most biological tissue is very high. The laser comprises a harmonically mode-locked 1-GHz oscillator, which, in turn, seeds a fiber amplifier chain. The amplifier produces 500 ns long bursts containing 500 pulses with 1 GHz intra-burst and 50 kHz inter-burst repetition rates, respectively, at an average power of 1 W, corresponding to 40 nJ pulse and 20 μJ burst energies, respectively. The entire system is built in an all-fiber architecture and implements dispersion management such that output pulses are delivered directly from a single-mode fiber with a duration of 340 fs without requiring any external compression. This gigahertz-repetition-rate system is intended for ablation-cooled laser material removal in the 2 μm wavelength region, which is interesting for laser surgery due to the exceptionally high tissue absorption at this wavelength. © 2017 Optical Society of America

    Effect of six weeks aerobic training upon blood trace metals levels

    Get PDF
    This study was carried out to investigate the effects of 6-week aerobic exercise program upon blood Zn and Cu levels. There were 12 male university students with an average age of 21.67 ± 0.89 years and no regular training habits participated in the study. The participants were subjected three days a week 1 hour a day continuous running program on treadmill with an intensity of 60-70% for a period of six weeks. They were fed with zinc and copper free diet throughout the study and it was made sure that they were not using copper or zinc containing vitamin tablets. The differences between the pre and post study periods were found to be statistically significant as regards to both resting and maximal loading conditions (p<0.01). The pre and post training max VO2 values were also found to be positively correlated with the copper and zinc levels in blood. Both the copper and zinc blood levels were significantly decreased after 6-week aerobic training period p<0.05. © Neuroendocrinology Letters

    Doping management for high-power fiber lasers: 100 W, few-picosecond pulse generation from an all-fiber-integrated amplifier

    Get PDF
    Thermal effects, which limit the average power, can be minimized by using low-doped, longer gain fibers, whereas the presence of nonlinear effects requires use of high-doped, shorter fibers to maximize the peak power. We propose the use of varying doping levels along the gain fiber to circumvent these opposing requirements. By analogy to dispersion management and nonlinearity management, we refer to this scheme as doping management. As a practical first implementation, we report on the development of a fiber laser-amplifier system, the last stage of which has a hybrid gain fiber composed of high-doped and low-doped Yb fibers. The amplifier generates 100 W at 100 MHz with pulse energy of 1 μJ. The seed source is a passively mode-locked fiber oscillator operating in the all-normaldispersion regime. The amplifier comprises three stages, which are all-fiber-integrated, delivering 13 ps pulses at full power. By optionally placing a grating compressor after the first stage amplifier, chirp of the seed pulses can be controlled, which allows an extra degree of freedom in the interplay between dispersion and self-phase modulation. This way, the laser delivers 4.5 ps pulses with ∼200 kW peak power directly from fiber, without using external pulse compression. © 2012 Optical Society of America

    Palaeozoic-Recent geological development and uplift of the Amanos Mountains (S Turkey) in the critically located northwesternmost corner of the Arabian continent

    Get PDF
    <p>We have carried out a several-year-long study of the Amanos Mountains, on the basis of which we present new sedimentary and structural evidence, which we combine with existing data, to produce the first comprehensive synthesis in the regional geological setting. The ca. N-S-trending Amanos Mountains are located at the northwesternmost edge of the Arabian plate, near the intersection of the African and Eurasian plates. Mixed siliciclastic-carbonate sediments accumulated on the north-Gondwana margin during the Palaeozoic. Triassic rift-related sedimentation was followed by platform carbonate deposition during Jurassic-Cretaceous. Late Cretaceous was characterised by platform collapse and southward emplacement of melanges and a supra-subduction zone ophiolite. Latest Cretaceous transgressive shallow-water carbonates gave way to deeper-water deposits during Palaeocene-Eocene. Eocene southward compression, reflecting initial collision, resulted in open folding, reverse faulting and duplexing. Fluvial, lagoonal and shallow-marine carbonates accumulated during Late Oligocene(?)-Early Miocene, associated with basaltic magmatism. Intensifying collision during Mid-Miocene initiated a foreland basin that then infilled with deep-water siliciclastic gravity flows. Late Miocene-Early Pliocene compression created mountain-sized folds and thrusts, verging E in the north but SE in the south. The resulting surface uplift triggered deposition of huge alluvial outwash fans in the west. Smaller alluvial fans formed along both mountain flanks during the Pleistocene after major surface uplift ended. Pliocene-Pleistocene alluvium was tilted towards the mountain front in the west. Strike-slip/transtension along the East Anatolian Transform Fault and localised sub-horizontal Quaternary basaltic volcanism in the region reflect regional transtension during Late Pliocene-Pleistocene (<4 Ma).</p

    Pre-formulation and systematic evaluation of amino acid assisted permeability of insulin across in vitro buccal cell layers

    Get PDF
    The aim of this work was to investigate alternative safe and effective permeation enhancers for buccal peptide delivery. Basic amino acids improved insulin solubility in water while 200 and 400 µg/mL lysine significantly increased insulin solubility in HBSS. Permeability data showed a significant improvement in insulin permeation especially for 10 µg/mL of lysine (p < 0.05) and 10 µg/mL histidine (p < 0.001), 100 µg/mL of glutamic acid (p < 0.05) and 200 µg/mL of glutamic acid and aspartic acid (p < 0.001) without affecting cell integrity; in contrast to sodium deoxycholate which enhanced insulin permeability but was toxic to the cells. It was hypothesized that both amino acids and insulin were ionised at buccal cavity pH and able to form stable ion pairs which penetrated the cells as one entity; while possibly triggering amino acid nutrient transporters on cell surfaces. Evidence of these transport mechanisms was seen with reduction of insulin transport at suboptimal temperatures as well as with basal-to-apical vectoral transport, and confocal imaging of transcellular insulin transport. These results obtained for insulin is the first indication of a possible amino acid mediated transport of insulin via formation of insulin-amino acid neutral complexes by the ion pairing mechanism

    Kinetic, Isotherm and Thermodynamic Analysis on Adsorption of Cr(VI) Ions from Aqueous Solutions by Synthesis and Characterization of Magnetic-Poly(divinylbenzene-vinylimidazole) Microbeads

    Get PDF
    The magnetic-poly(divinylbenzene-1-vinylimidazole) [m-poly(DVB-VIM)] microbeads (average diameter 53–212 μm) were synthesized and characterized; their use as adsorbent in removal of Cr(VI) ions from aqueous solutions was investigated. The m-poly(DVB-VIM) microbeads were prepared by copolymerizing of divinylbenzene (DVB) with 1-vinylimidazole (VIM). The m-poly(DVB-VIM) microbeads were characterized by N2 adsorption/desorption isotherms, ESR, elemental analysis, scanning electron microscope (SEM) and swelling studies. At fixed solid/solution ratio the various factors affecting adsorption of Cr(VI) ions from aqueous solutions such as pH, initial concentration, contact time and temperature were analyzed. Langmuir, Freundlich and Dubinin–Radushkvich isotherms were used as the model adsorption equilibrium data. Langmuir isotherm model was the most adequate. The pseudo-first-order, pseudo-second-order, Ritch-second-order and intraparticle diffusion models were used to describe the adsorption kinetics. The apparent activation energy was found to be 5.024 kJ mol−1, which is characteristic of a chemically controlled reaction. The experimental data fitted to pseudo-second-order kinetic. The study of temperature effect was quantified by calculating various thermodynamic parameters such as Gibbs free energy, enthalpy and entropy changes. The thermodynamic parameters obtained indicated the endothermic nature of adsorption of Cr(VI) ions. Morever, after the use in adsorption, the m-poly(DVB-VIM) microbeads with paramagnetic property were separeted via the applied magnetic force. The magnetic beads could be desorbed up to about 97% by treating with 1.0 M NaOH. These features make the m-poly(DVB-VIM) microbeads a potential candidate for support of Cr(VI) ions removal under magnetic field

    Imaging of subsurface lineaments in the southwestern part of the Thrace Basin from gravity data

    Full text link
    Linear anomalies, as an indicator of the structural features of some geological bodies, are very important for the interpretation of gravity and magnetic data. In this study, an image processing technique known as the Hough transform (HT) algorithm is described for determining invisible boundaries and extensions in gravity anomaly maps. The Hough function implements the Hough transform used to extract straight lines or circles within two-dimensional potential field images. It is defined as image and Hough space. In the Hough domain, this function transforms each nonzero point in the parameter domain to a sinusoid. In the image space, each point in the Hough space is transformed to a straight line or circle. Lineaments are depicted from these straight lines which are transformed in the image domain. An application of the Hough transform to the Bouguer anomaly map of the southwestern part of the Thrace Basin, NW Turkey, shows the effectiveness of the proposed approach. Based on geological data and gravity data, the structural features in the southwestern part of the Thrace Basin are investigated by applying the proposed approach and the Blakely and Simpson method. Lineaments identified by these approaches are generally in good accordance with previously-mapped surface faults
    corecore