Bound state solutions of the Dirac-Rosen-Morse potential with spin and pseudospin symmetry

The energy spectra and the corresponding two- component spinor wavefunctions of the Dirac equation for the Rosen-Morse potential with spin and pseudospin symmetry are obtained. The $s-$wave ($\kappa = 0$ state) solutions for this problem are obtained by using the basic concept of the supersymmetric quantum mechanics approach and function analysis (standard approach) in the calculations. Under the spin symmetry and pseudospin symmetry, the energy equation and the corresponding two-component spinor wavefunctions for this potential and other special types of this potential are obtained. Extension of this result to $\kappa \neq 0$ state is suggested.Comment: 18 page

Match-Play and Performance Test Responses of Soccer Goalkeepers: A Review of Current Literature.

Goalkeepers are typically the last defensive line for soccer teams aiming to minimise goals being conceded, with match rules permitting ball handling within a specific area. Goalkeepers are also involved in initiating some offensive plays, and typically remain in close proximity to the goal line while covering ~ 50% of the match distances of outfield players; hence, the competitive and training demands of goalkeepers are unique to their specialised position. Indeed, isolated performance tests differentiate goalkeepers from outfield players in multiple variables. With a view to informing future research, this review summarised currently available literature reporting goalkeeper responses to: (1) match play (movement and skilled/technical demands) and (2) isolated performance assessments (strength, power, speed, aerobic capacity, joint range of motion). Literature searching and screening processes yielded 26 eligible records and highlighted that goalkeepers covered ~ 4-6 km on match day whilst spending ~ 98% of time at low-movement intensities. The most decisive moments are the 2-10 saves·match-1 performed, which often involve explosive actions (e.g. dives, jumps). Whilst no between-half performance decrements have been observed in professional goalkeepers, possible transient changes over shorter match epochs remain unclear. Isolated performance tests confirm divergent profiles between goalkeepers and outfield players (i.e. superior jump performance, reduced [Formula: see text]2max values, slower sprint times), and the training of soccer goalkeepers is typically completed separately from outfield positions with a focus primarily on technical or explosive drills performed within confined spaces. Additional work is needed to examine the physiological responses to goalkeeper-specific training and match activities to determine the efficacy of current preparatory strategies

Detection of volatile aroma compounds of Morchella by headspace gas chromatography mass spectrometry (HS-GC/MS)

This study was conducted at the Horticulture Department of Çukurova University, Adana, Turkey, in 2010 to determine the volatile aroma compounds of Morchella mushroom. Fresh samples of Morchella esculenta (Sample 1) and Morchella elata (Sample 2) were collected from Çanakkale (Sample 1) and Mersin (Sample 2) provinces in Turkey in the spring of 2010. Volatile aroma compounds were analyzed by headspace gas chromatography mass spectrometry (HS-GC/MS). A total of 31 aroma compounds were identified in the 2 analyzed samples: 7 alcohols, 7 esters, 7 ketones, 3 acids, 2 aldehydes, 1 terpene, phenol, 1-propanamine, geranyl linalool, and quinoline. Seventeen aroma components were identified in Sample 1, and 18 compounds were found in Sample 2. Phenol was determined as the major aroma compound in both Sample 1 and Sample 2, at 50.888% and 58.293% content, respectively. Alcohols, especially 1-octen-3-ol, were detected as the second major aroma components in Sample 1 and Sample 2, at 15.500% and 5.660% content, respectively. Carbamic acid, methyl ester was found only in Sample 1, at 11.379% content. The aroma components detected in the two samples differed. 1-Octadecanol; cyclooctylalcohol; trans-2-undecen-1-ol; butanoic acid, butyl ester (CAS); carbamic acid, methyl ester; 2-ethylhexyl-2-ethylhexanoate; phthalic acid, decyl isobutyl ester; 2,2,4-trimethyl-1,3-pentanediol diisobutyrate; decanal; nonanal; 7,9-di-tert-butyl-1-oxaspiro(4.5)deca-6,9-diene-2,8-dione; 2,5-cyclohexadiene-1,4-dione; 2,6-bis(1,1-dimethylethyl); and trans-alpha-bisabolene were detected only in Sample 1. Ethanol; silanediol, 2-methylaminoethanol; L-alanine, ethyl ester; carbonic acid, dodecyl isobutyl ester; acetic acid; butanoic acid; 2,3,4H-pyran-4-one; 5,9-undecadien-2-one; cyclooctene; 2-cyclopenten-1-one; 1-propanamine; geranyl linalool; and quinoline were determined only in Sample 2

Comparison of various extraction conditions in Agaricus bisporus by gas chromatography mass spectrometry (HS-GC/MS) technique

This study was conducted at Horticulture Department of Çukurova University, Adana, Turkey, during 2011-2012 years to determine volatile aroma compounds of Agaricus bisporus and the most useful extraction technique. Agaricus bisporus is one of the commonly consumed and cultivated edible mushrooms all over the world. Edible mushrooms are consumed for their taste and aroma as well as nutritional characteristics. Therefore, aroma studies on mushrooms are very important. Fresh sample of Agaricus bisporus (Sylvan A15 variety) obtained from Mega Tesnim Mushroom Company, Turkey, was used as material. Volatile aroma compounds were performed by Headspace Gas Chromatography Mass Spectrometry (HS- GC/MS). Three different extraction methods were examined. Extraction was done at 35°C (Extraction Method 1), 50°C (Extraction Method 2) and 60°C (Extraction Method 3) using heated magnetic stirrer and duration was 20 min. Experiment results showed that EM2 was the most useful method for determining aroma compounds of Agaricus bisporus, 15, 21 and 8 different aroma components were identified through EM1, EM2 and EM3 extraction methods, respectively. Alcohols, acids, ketones, esters, phenol, 2-heptanamine; 2-octanamine; 1,3-benzenediamine, 4-methyl; isopropyl myristinate; 6-chloro-11,11-dimethyl-10,11-dihydro-7, 10-epoxy-7H-cyclohepta [d]-1, 2,4-triazolo [4,3-b] pyridazine; N,N,4-trimethyl-benzene- sulfonamide; 2-methylpyrazolo; 3-(perhydro-1, 4, 2-oxain-4-yl) carbonylpyridine; cis,trans-2, 2'-(1,2-phenylenedivinylene) difuran; benzene and butyroin were determined. 1-Octen-3-ol was found to be the major aroma compound through EM1 and EM2 extraction method at levels of 62.93% and 39.04%, respectively. 2H-Benzimidazol-2-one was identified tobe the major component through EM3 extraction method

Comparison of different methods for separation of haploid embryo induced through irradiated pollen and their economic analysis in melon (Cucumis melo var. inodorus)

PubMedID: 23818825Irradiated pollen technique is the most successful haploidization technique within Cucurbitaceae. After harvesting of fruits pollinated with irradiated pollen, classical method called as "inspecting the seeds one by one" is used to find haploid embryos in the seeds. In this study, different methods were used to extract the embryos more easily, quickly, economically, and effectively. "Inspecting the seeds one by one" was used as control treatment. Other four methods tested were "sowing seeds direct nutrient media," "inspecting seeds in the light source," "floating seeds on liquid media," and "floating seeds on liquid media after surface sterilization." Y2 and Y3 melon genotypes selected from the third backcross population of Yuva were used as plant material. Results of this study show that there is no statistically significant difference among methods "inspecting the seeds one by one," "sowing seeds direct CP nutrient media," and "inspecting seeds in the light source," although the average number of embryos per fruit is slightly different. No embryo production was obtained from liquid culture because of infection. When considered together with labor costs and time required for embryo rescue, the best methods were "sowing seeds directly in the CP nutrient media" and "inspecting seeds in the light source." © 2013 Gökhan Baktemur et al

Measurement of the parameters and the resonance frequency in semiconductor controlled Tesla transformer

This paper presents the equivalent circuit and the parameters of a Tesla transformer. The resonance frequency to generate a high test voltage in the air-cored transformer is determined. An experimental Tesla transformer system is designed by using a few simple tools such as a Tesla coil, function generator and ultra-fast semiconductor switch. By using high frequency DC chopper, a resonance voltage induced between the primary and secondary coils. Result is a power supply that generates test voltages in the level of 200.000-250.000 V. The paper presents the input/output relations of the Tesla transformer and properties of semiconductor controlled driver system. © 2012 Elsevier Ltd. All rights reserved

A new species of barssia (Ascomycota, helvellaceae) from Turkey

A new species of the genus Barssia was identified from Turkey using both morphological and phylogenetic analysis of the ribosomal internal transcribed spacer region (ITS rDNA) and nuclear ribosomal large subunit (LSU rDNA) gene sequences. Macroscopic and microscopic features of the fresh samples were photographed and a diagnostic key of the genus Barssia was built considering characteristics of known species. © TÜBİTAK.Firat University Scientific Research Projects Management Unit: FBA-2017-8059 2015Z062 Türkiye Bilimsel ve Teknolojik Araştirma KurumuThe authors would like to thank the Scientific and Technological Research Council of Turkey (TÜBİTAK), 1002-Short Term R&D Funding Program (Project Code: 2015Z062), and the Çukurova University Scientific Research Projects Coordinating Office (Project Code: FBA-2017-8059) for supporting this study

Frequency domain analysis of tesla transformer as a coupled second order system

This paper presents the frequency domain analysis of a Tesla transformer system to obtain relationship between the frequency of an input square wave and the induced output voltage. This system has two coils coupled to each other via air. Resistances, inductances and parasitic capacitances make the coils a coupled second order dynamical system when the primary is fed by a square wave. Mathematical analysis bases on the transfer function written in frequency domain. The solution aims to determine the frequencies in which the Tesla Transformer generates high output voltage. A comparison between the calculated and measured results shows the validity of the proposed approach. © 2011-IOS Press and the authors. All rights reserved

Resonance analysis of a solid state controlled Tesla transformer

A Tesla transformer is a source that can generate high voltage with high frequency. It is also known a resonance system becomes two air cored coils. Classic Tesla transformer system consists of a high voltage generator which is usually a Neon Sign Transformer (NST), high voltage capacitor and spark gap electrodes. This paper presents mathematical analysis of the equivalent circuit, measure/calculation of its parameters, reasons of resonance, examine of resonance frequencies and a simple solid state driver with a low voltage in the primary side for a Tesla transformer. © 2011 ? IOS Press and the authors

Morchella galilaea, an autumn species from Turkey

Morchella specimens collected during the autumn seasons of 2009-12 from Adana Province, Turkey, have been identified by DNA sequencing as representatives of Morchella galilaea. The macro- and micromorphology, phylogeny, ecology, and fruiting phenology of the Turkish material are evaluated. © 2015. Mycotaxon, Ltd