Noncommutative Vortices and Flux-Tubes from Yang-Mills Theories with Spontaneously Generated Fuzzy Extra Dimensions

We consider a U(2) Yang-Mills theory on M x S_F^2 where M is an arbitrary noncommutative manifold and S_F^2 is a fuzzy sphere spontaneously generated from a noncommutative U(N) Yang-Mills theory on M, coupled to a triplet of scalars in the adjoint of U(N). Employing the SU(2)-equivariant gauge field constructed in arXiv:0905.2338, we perform the dimensional reduction of the theory over the fuzzy sphere. The emergent model is a noncommutative U(1) gauge theory coupled adjointly to a set of scalar fields. We study this model on the Groenewald-Moyal plane and find that, in certain limits, it admits noncommutative, non-BPS vortex as well as flux-tube (fluxon) solutions and discuss some of their properties.Comment: 18+1 pages, typos corrected, published versio

Composition of the essential oil of Salvia montbretii Benth. from Turkey

The composition of the essential oil produced from aerial parts of Salvia montbretii Benth.(Lamiaceae), was analyzed by GC and GC-MS. Forty-six compounds constituting about 97.7% of the essential oil were characterized.The main compounds were characterized as ?-caryophyllene (32.8%), ?-pinene (9.8%), ?-humulene (8.2%), 12-hydroxy-?-caryophyllene acetate (6.6%), germacrene D (4.9%) and ?-pinene (4.5%

Infrastructure Systems in Sustainability and Regional Development

In this study, the relationship of infrastructure systems which enable the relations, service and information flows of individuals, communities and institutions with sustainability is discussed. Infrastructure systems are initially evaluated in single component basis, then, being discussed in an integrated way at urban and regional levels covering the mutual impacts of environment, economy and society as the three pillars of sustainability. The use of renewable resources, shifting to smart grid, distributed networks, recycling and reuse practices started to have crucial impacts on efficiency and sustainability in infrastructure. The approach that consider infrastructure as a facilitator in socio-economic growth besides being a physical service provision activity is gaining importance recently with the accelerating globalization and developing communication and information technologies. In respect to that, policies based on sustainability, governance and flexibility in infrastructure services’ provision contribute to regional development

Dill seed oil as a possible contraceptive agent: antiangiogenic effects on endothelial cells

Dill (Anethum graveolens L.) essential oil is wide spread in the food, beverage and pharmaceutical sectors. Dill is a member of the Apiaceae (Umbelliferae) family. It has the following biological activities: antioxidant, antifungal, antibacterial, antimicrobial, antihyperlipidemic, antihypercholesterolemic, antispasmodic, antiproliferative and anti-inflammatory. Aqueous extract of dill seed has reported effects on sex hormones and infertility potential. Moreover, boiled dill seed has an impact on reducing labor duration in giving birth. Implantation and placentation are necessary for a healthy pregnancy in the early stages. Angiogenesis is responsible for these essential processes. This study aimed to investigate dill seed oil’s cytotoxic and antiangiogenic effects on rat adipose tissue endothelial cells (RATECs). Dill seed oil showed dose-dependent cytotoxicity on RATECs. It disrupted endothelial tube formation and depolymerized F-actin stress fibers. According to this study, depolymerization of F-actin stress fiber by dill seed oil could inhibit angiogenesis by suppressing endothelial cell proliferation, tube formation and motility. In other words, dill seed oil can be a new anti-angiogenic agent and a novel contraceptive

Nonlocal regularisation of noncommutative field theories

We study noncommutative field theories, which are inherently nonlocal, using a Poincar\'e-invariant regularisation scheme which yields an effective, nonlocal theory for energies below a cut-off scale. After discussing the general features and the peculiar advantages of this regularisation scheme for theories defined in noncommutative spaces, we focus our attention onto the particular case when the noncommutativity parameter is inversely proportional to the square of the cut-off, via a dimensionless parameter $\eta$. We work out the perturbative corrections at one-loop order for a scalar theory with quartic interactions, where the signature of noncommutativity appears in $\eta$-dependent terms. The implications of this approach, which avoids the problems related to UV-IR mixing, are discussed from the perspective of the Wilson renormalisation program. Finally, we remark about the generality of the method, arguing that it may lead to phenomenologically relevant predictions, when applied to realistic field theories.Comment: 1+11 pages, 6 figures; v2: references added, typos corrected, conclusions unchange

Biological activities of the fruit essential oil, fruit, and root extracts of ferula drudeana korovin, the putative anatolian ecotype of the silphion plant

In the present study, preliminary phytochemical investigations were performed on the fruit essential oil and antioxidant-rich methanolic extracts of the fruits and roots of Ferula drudeana, the putative Anatolian ecotype of the Silphion plant, to corroborate its medicinal plant potential and identify its unique characteristics amongst other Ferula species. The essential oil from the fruits of the endemic species Ferula drudeana collected from Aksaray was analyzed by GC and GC/MS. The main components of the oil were determined as shyobunone (44.2%) and 6-epishyobunone (12.6%). The essential oil of the fruits and various solvent extracts of the fruits and roots of F. drudeana were evaluated for their antibacterial and anticandidal activity using microbroth dilution methods. The essential oil of the fruits, methanol, and methylene chloride extracts of the fruits and roots showed weak to moderate inhibitory activity against all tested microorganisms with MIC values of 78–2000 µg/mL. However, the petroleum ether extract of the roots showed remarkable inhibitory activity against Candida krusei and Candida utilis with MIC values of 19.5 and 9.75 µg/mL, respectively. Furthermore, all the samples were tested for their antioxidant activities using DPPH• TLC spot testing, online HPLC–ABTS screening, and DPPH/ABTS radical scavenging activity assessment assays. Methanolic extracts of the fruits and roots showed strong antioxidant activity in both systems

Some Morpholocigal and Quality Characteristics of Sage (Salvia tomentosa Mill.) Populations in South Marmara Region

ÖZ: Bu çalışma Güney Marmara Florasında yayılış gösteren Salvia tomentosa Mill. populasyonarının bazı morfolojik ve kalite özelliklerini belirlemek amacı ile 2010 yılında yürütülmüştür. Çalışmada Yalova (3), Bursa (7), Çanakkale (7) ve Balıkesir (3) illerinden toplam 20 adet bitki ve toprak örneği alınmıştır. Floradaki yapılan ölçümlerde bitki boyu 30,9-95,5 cm, gövde kalınlığı 0,4-1,1 cm, dal sayısı 13-22 adet, yaprak boyu 5-13,2 cm, yaprak eni 2,3-5,2 cm ve habitus çapı 33,7-105,3 cm olarak ölçülmüştür. Populasyonların uçucu yağ oranları %0,7-3,5 arasında değişirken, uçucu yağın ana bileşenleri ve oranları sırası ile ?-pinene (%1,8-38,9), ?-pinene (%1,9-35,8) ve camphor (%1,5-40,9) olmuştur. Salvia tomentosa Mill.ın çok farklı toprak karakterine sahip alanlarda yayılış gösterdiği tespit edilmiştir.ABSTRACT: This study was conducted in order to determine some morphological and quality characteristics of Salvia tomentosa Mill. Populations Distribution in South Marmara Region in 2010. 20 plant and soil sample collected from Yalova (3), Bursa (7), Çanakkale (7) and Balıkesir (3) province in this study. Plant height vary to 30,9-95,5 cm, stem diameter 0,4-1,1 cm, branch number 13-22, leaf length 5,13,2 cm, leaf width 2,3-2,5 and diameter 33,7-105,3 cm between populations in the flora. While essential oil yield vary to 0,7-3,5% between populations, main components and rates the essential oil were α- pinene (%1,8-38,9), β-pinene (%1,9-35,8) and camphor (%1,5-40,9) respectively. It was determined that spread areas of Salvia tomentosa Mill. had very different soil characters

Coexistence of Spin Canting and Metamagnetism in a One-Dimensional Mn(II) Compound Bridged by Alternating Double End-to-End and Double End-On Azido Ligands and the Analog Co(II) Compound

Two new compounds of general formula [M(N3)2(dmbpy)] in which dmbpy = 5,5′-dimethyl-2,2′-bipyridine, and M = Mn(II) or Co(II), have been solvothermally synthesized and characterized structurally and magnetically. The structures consist of zig-zag polymeric chains with alternating bis-µ(azide-N1)2M and bis-µ(azide-N1,N3)2M units in which the cis-octahedrally based coordination geometry is completed by the N,N’-chelating ligand dmbpy. The molecular structures are basically the same for each metal. The Mn(II) compound has a slightly different packing mode compared to the Co(II) compound, resulting from their different space groups. Interestingly, relatively weak interchain interactions are present in both compounds and this originates from π–π stacking between the dmbpy rings. The magnetic properties of both compounds have been investigated down to 2 K. The measurements indicate that the manganese compound shows spin-canted antiferromagnetic ordering with a Néel temperature of TN = 3.4 K and further, a field-induced magnetic transition of metamagnetism at temperatures below the TN. This finding affords the first example of an 1D Mn(II) compound with alternating double end-on (EO) and double end-to-end (EE) azido-bridged ligands, showing the coexistence of spin canting and metamagnetism. The cobalt compound shows a weak ferromagnetism resulting from a spin-canted antiferromagnetism and long-range magnetic ordering with a critical temperature, TC = 16.2 K

Fuzzy Torus via q-Parafermion

We note that the recently introduced fuzzy torus can be regarded as a q-deformed parafermion. Based on this picture, classification of the Hermitian representations of the fuzzy torus is carried out. The result involves Fock-type representations and new finite dimensional representations for q being a root of unity as well as already known finite dimensional ones.Comment: 12pages, no figur