Management of broodstock and quality control of fish seed in Hungary

Common carp (Cyprinus carpio) breeding has a long tradition in Hungary. However, recent economic changes in Eastern Europe and new developments in aquaculture necessitated the need for ensuring quality of the brood stock used in hatcheries and the legal and institutional frameworks needed to implement the program. In addition to good research and development programs and gene banking, it became essential to establish an appropriate legal framework, organize, coordinate and control breeding activities, and provide financial support. It was a major breakthrough for carp breeding when C.carpio was recognized as one of the cultivated animals in the Animal Breeding Act in 1993. The Carp Breeding Section of the Hungarian Fish Producers Association plays an important role in carp breeding programs. Thirteen breeding farms of the Carp Breeding Section have 24 certified C.carpio varieties. In Hungary, about 80 % of the seed used as stocking for commercial production are from high quality certified breeders

GLOBAL PROPERTIES OF ROTATING NEUTRON STARS WITH QCD EQUATIONS OF STATE

We numerically investigate global properties of rotating neutron stars (NSs) using the allowed band of QCD equations of state derived by Kurkela et al. This band is constrained by chiral effective theory at low densities and perturbative QCD at high densities, and is thus, in essence, a controlled constraint from first-principles physics. Previously, this band of equations of state was used to investigate non-rotating NSs only; in this work, we extend these results to any rotation frequency below the mass-shedding limit. We investigate mass-radius curves, allowed mass-frequency regions, radius-frequency curves for a typical 1.4M(circle dot) star, and the values of the moment of inertia of the double pulsar PSR J0737-3039A, a pulsar for which the. moment of inertia may be constrained observationally in a few years. We present limits on observational data coming from these constraints, and identify values of observationally relevant parameters that would further constrain the allowed region for the QCD equation of state. We also discuss how much this region would be constrained by a measurement of the moment of inertia. of the double pulsar PSR J0737-3039A.Peer reviewe

The efficacy of current treatment options for Complex Regional Pain Syndrome

Complex Regional Pain Syndrome (CRSP) is a neuropathic disorder that has proven to be particularly difficult to treat based on the wide array of symptoms experienced by patients and the ambiguity surrounding their origin. The vast majority of treatment options today deal with the management of pain symptoms experienced by patients as a result of neuroinflammation. Physical therapy is an instrumental aspect of the treatment plan; however the need for more effective pharmacological interventions is paramount. This study reviews a large volume of current and fundamental literature covering the plethora of treatment options currently used for CRPS. Data from double blind clinical trials as well as observational clinical results were gathered in hopes of illuminating the efficacy of each treatment. The goal was to assess current and future treatment options and determine what interventions are optimal for the management of CRPS. Furthermore, this review highlights some of the limitations of the current treatment options, in addition to providing a synopsis of CRPS as it is understood today. This paper paints a picture of where we have been in the treatment of CRPS, what is working, what is not working, and where we might go in the future

From pQCD to neutron stars: matching equations of state to constrain global star properties

The equation of state (EoS) of quantum chromodynamics (QCD) at zero temperature can be calculated in two different perturbative regimes: for small values of the baryon chemical potential $\mu$, one may use chiral perturbation theory (ChEFT); and for large values of $\mu$, one may use perturbative QCD (pQCD). There is, however, a gap for $\mu \in (0.97\text{ GeV},\, 2.6\text{ GeV})$, where these theories becomes non-perturbative, and where there is currently no known microscopic description of QCD matter. Unfortunately, this interval obscures the values of $\mu$ found within the cores of neutron stars (NSs). In this thesis, we argue that thermodynamic matching of the ChEFT and pQCD EoSs is a legitimate way to obtain quantitative constraints on the non-pertubative QCD EoS. Moreover, we argue that this method is effective, verifiable, and systematically improvable. First, we carry out a simplified matching procedure in QCD-like theories that can be simulated on the lattice without a sign problem. Our calculated pressure band serves as a prediction for lattice-QCD practitioners and will allow them to verify or refute the simplified procedure. Second, we apply the state-of-the-art matched EoS of Kurkela et al. (2014) to rotating NSs. This allows us to obtain bounds on observable NS properties, as well as point towards future observations that would more tightly constrain the current state-of-the-art EoS band. Finally, as evidence of the ability to improve the procedure, we carry out calculations in pQCD to improve the zero-temperature pressure. We calculate the full $\mathcal{O}(g^{6} \ln^{2} g)$ contribution to the pQCD pressure for $n_{f}$ massless quarks, as well as a significant portion of the $\mathcal{O}(g^{6} \ln g)$ piece and even some of the $\mathcal{O}(g^{6})$ piece.Comment: Ph.D. Thesis, 108 pages, 13 figures, 1 appendi

CCD spectrophotometry of CC Cas. I. Radial velocity curves

We report the results of the first-ever CCD spectroscopic observations of the eclipsing variable CCCas with massive early-type components. The measured semi-amplitudes of the radial velocity curves of the components, K1 = 123.9 km/s and K2 = 292.4 km/s, are comparable with the published data, and the center-of-mass velocity of the system was found to be V0 = -20.4 km/s, which is about -10 km/s greater than the earlier published results. This fact may support the published hypothesis about the presence of a third body in the system. © 2013 Pleiades Publishing, Ltd

The O-type eclipsing binary SZ Cam revisited

We analyse new spectra of the multiple system SZ Cam because previous studies found different values of the primary radial velocity amplitude. The older solutions of light curves also have different ratios of secondary to primary luminosity as inferred from the observed equivalent widths of spectral lines. We therefore reanalyse the light curves of the eclipsing pair. Only the light curve derived by Wesselink has a solution that agrees with the observed equivalent width ratio. The resulting parameters of the binary are discussed. Masses of $M_1=16.6$ and $M_2=11.9$ M$_{\odot}$, and radii $R_1=9.4$ and $R_2=5.4$ R$_{\odot}$ are derived. We point out that radial velocities measured with the CCF method can be misleading when the method is applied to multiple systems with complex line blends. New radial velocities are also obtained for the visual component ADS 2984 A (HD 25639).Comment: Astronomy and Astrophysics, accepte

Study of variable stars associated with maser sources: G025.65+1.05

We report variation of K-band infrared (IR) emission in the vicinity of the G025.65+1.05 water and methanol maser source. New observational data were obtained with 2.5m telescope of the Caucasian Mountain Observatory (CMO) of Moscow State University on 2017-09-21 during the strong water maser flare. We found that the IR source situated close to the maser position had decreased brightness in comparison to archive data. This source is associated with a massive young stellar object (MYSO) corresponding to the compact infrared source IRAS 18316-0602 (RAFGL 7009S). Similar decrease in K-brightness of the IR source close to the maser position was observed in March~2011 when the water maser activity was increased. The dips in MYSO brightness can be related to the maser flare phases. Maser flares that are concurrent with dips of the IR emission can be explained if the lower IR radiation field enables more efficient sink of the pumping cycle by allowing IR photons to escape the maser region.Comment: Accepted for publication in RA