Background Ehrlichia, Anaplasma, and Babesia spp. are canine pathogens transmitted by the Rhipicephalus sanguineus tick which can cause varied clinical signs. These pathogens have been investigated in the Philippines, but coinfection has not been reported yet. Aim The aim of this study was to evaluate the presence of Ehrlichia/Anaplasma and Babesia spp. in Philippine dogs. Materials and methods A total of 100 dogs from seven different veterinary establishments in Cebu, Philippines, were examined for Ehrlichia/Anaplasma and Babesia spp. infection using peripheral blood smear examination and polymerase chain reaction (PCR). Inclusion criteria included a history or presence of tick infestation, anemia, and/or thrombocytopenia. Clinical signs were recorded. Statistical analyses were performed between PCR positivity and clinical signs and hematological results. Results A total of 10 and 18 dogs were found to be positive for Ehrlichia/Anaplasma and Babesia spp., respectively. One animal was PCR positive for both pathogens, which is the first report of coinfection in the country. The most common clinical signs observed include inappetence (89%), lethargy (80%), thrombocytopenia (85%), and anemia (74%). Analyses revealed that inappetence (p=0.044) and weight loss (p=0.028) were found statistically significant with Ehrlichia/Anaplasma infection. Basophil (p=0.001) and eosinophil counts (p=0.000) were also found significantly different between Ehrlichia/Anaplasma spp.-positive and -negative dogs. On the other hand, differential monocyte count (p=0.009) was found significantly different between Babesia spp.-positive and -negative dogs. Conclusion The present study showed low infection rates of canine ehrlichiosis/anaplasmosis and babesiosis and provided additional evidence for the presence of the pathogens in the area.

/pdf/detection-of-ehrlichia-anaplasma-and-babesia-spp-in-dogs-of-4vajhjvjnx.pdf

Detection of Ehrlichia, Anaplasma, and Babesia spp. in dogs of Cebu, Philippines.

/pdf/proceedings-of-the-xi-international-scientific-and-practical-m87tair5.pdf

Proceedings of the XI International Scientific and Practical Conference

The development of meteor astronomy in modern Ukraine is considered. The specificity of meteor observation methods requires, first of all, the organization of a network of corresponding observation points. To achieve this goal, it is proposed to combine the scientific and technical capabilities of participating organizations in the form of the Ukrainian Meteor Observation Network (UMON). UMON is a set of two or more permanent observation stations located on the territory of Ukraine, which have the hardware and software for basic and one-sided observations of meteors in different wavelength ranges and conduct such observations. UMON aims to solve important problems of meteor research, structure and evolution of meteor streams and showers, the interaction of meteoroids with the Earth’s atmosphere and their chemical composition. The scientific and technical products of UMON stations are the results of high-precision basic or one-sided observations of meteors in different wavelength ranges, as well as of fundamental and applied scientific and technical research.

/pdf/creation-of-the-ukrainian-meteor-observation-network-22abbjgs.pdf

Creation of the Ukrainian meteor observation network: instruments, methods for processing, observatin possibilities

Promising approaches to updating multi-faceted information about space vehicles and objects of space debris involve the addition of networks of ground-based surveillance tools using satellite systems for observing near-Earth space, built on several orbital groups (segments). The purpose of the research is to develop the task of building a satellite system that provides total coverage of a given area of heights above the Earth's surface by the application zones of orbital-based devices that carry out "horizontal observations" (the axis of symmetry of the instantaneous zone of possible application of the "horizontal" observation device lies in the plane of the instantaneous local horizon space vehicle-device carrier). Results: 1) two "symmetrical" methods of solving the problem of choosing the parameters of the grouping of one of the segments of the satellite observation system, which has a well-known, often used structure based on the "rings" of spacecraft in symmetrically spaced orbital planes, have been developed (the grouping should ensure total coverage of the spherical layer in the altitude area of near-Earth space in its environment with the given parameters of the instantaneous cone-shaped zone of application of the observation device; the "width" of the covered spherical layer is chosen as a part of the layer that would be covered using observation devices with the given characteristics with an infinite number of spacecraft based on them); 2) the proposed approach to the construction of a satellite system of "horizontal" observations on several orbital groups of different heights, quasi-optimal according to the criterion of minimizing the number of spacecraft; 3) calculated examples of the application of the developed methods are given, and several approximate estimates are made regarding the implementation of systems based on "horizontal" observations. Conclusions: satellite systems for observing orbital objects based on "vertical" (in the radial direction) observations can be supplemented with the implementation of "horizontal" observations.

«Горизонтальні» спостереження орбітальних об’єктів пристроями орбітального базування: супутникове угруповання тотального покриття заданої області висот

The radio-engineering complex for determining coordinates of a geostationary telecommunication satellite

The use of FM-signals of broadcasting stations for meteor quantity investigation

A method for calculation of slant-range differences to the active geostationary telecommunication satellite (GEO Telecom Satellite) is described in the article. The method is developed in the “Mykolaiv Astronomical Observatory” Research Institute. The results of observation of the “Eutelsat-25C” and “Eutelsat-13B” satellites with two receiving stations of digital satellite TV are discussed. The accuracy of determination of slant-range differences to the GEO Telecom Satellite is presented. Key words: radio interferometer, geostationary satellite, digital satellite television Manuscript submitted 29.05.2015 Radio phys. radio astron. 2015, 20(3): 238-246 REFERENCES 1. BUSHUEV, F. I., KALIUZHNYI, N. A., SLIVINSKY, A. P. and SHULGA, A. V., 2012. Determination of the Range to Geostationary Telecommunications Geostationary Satellites Using the Signals of Satellite Television. Radio Phys. Radio Astron ., vol. 17, no. 3, pp. 281–290 (in Russian). 2. EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE., 1997. Digital Video broadcasting (DVB); Framing structure, channel coding and modulation for 11/12 GHz satellite services. European Standard (Telecommunications series).EN 300 421 V1.1.2 (1997-08). Sophia Antipolis: ETSI. 3. EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE., 2009. Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2). European Standard (Telecommunications series). ETSI EN 302 307 V1.2.1 (2009-08) . Sophia Antipolis: ETSI. 4. Reconstruction of signal by interpolation [online]. Available from: http://fourier.eng.hmc.edu/e101/lectures/Sampling_theorem/node3.html 5. CABOT R., 1981. A note on the application of the Hilbert transform to time delay estimation. IEEE Trans. Acoust. Speech Signal Processing , vol. 29, no. 3, pp. 607–609. DOI: https://doi.org/10.1109/TASSP.1981.1163564

/pdf/method-and-first-results-of-calculation-of-slant-range-4eqq6r3i5k.pdf

Method and First Results of Calculation of Slant-Range Differences to Active Geostationary Telecommunication Satellite

An experimental radio-engineering hardware and software complex (RE HSC) has been developed and tested to determine the slant range difference of telecommunications geostationary satellites (TC GSS) by using correlation of the satellite television signals. The processing of signal information accounts for the structure of these signals and does not depend on their payload composition. Accuracy estimation of the slant range difference is equal 5.6 m and determined by the synchronization accuracy of the complex by using single-frequency GPS receivers Resolution- T. Subject to the improvement of the synchronization system based on a highly stable atomic frequency standard and optimal separation of several RE HSCs at the range of about 1000 km, the joint orbit determination error of TC GSS could be equal to about 18 m or 0.1 arcsec. Considered radio-engineering complex may be a prototype of cost-effective all-weather regional network for orbit determination of TC GSS and longterm monitoring of its characteristics.

/pdf/determination-of-the-range-to-telecommunications-3sj1aftz14.pdf

Determination of the range to telecommunications geostationary satellites using the signals of satellite television

On an instrumental complex of SRI NAO, by anomalous great deviations on the course of Fedchenko clock, seismic waves are revealed caused by some large earthquakes (the Kurils, Pakistan, Indonesia, the Molucca Sea, Turkey, Greece, etc). Several minutes before a seismic wave arrival, decrease of dispersions of Fedchenko astronomical clock readings presumably caused of an infra low frequency electromagnetic radiation from an epicenter of earthquake was observed.

The anomalies of Fedchenko astronomic clocks readings before some large earthquakes

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