bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated management of FOC TR4 in bananas: The Philippine experience
Authors: Corcolon Benny M.
Published: November 2024

The Philippines is still one of the top global producers of Cavendish bananas and the primary exporter in Asia. Despite some challenges, Cavendish banana remains to be the second leading export commodity of the country valued at USD1.1B. However, in recent years, there was a steady decline in the Cavendish production areas brought about by the threat of Fusarium wilt TR4. Based on official government report, the total area planted to Cavendish in 2022 was 84,328 hectares which was 0.6% lower than the previous year due to abandonment or shifting to alternative crops in some of the affected areas. While the 2023 Cavendish banana production area has not yet been officially reported, further decrease in area is expected. Fusarium wilt TR4 is mainly confined in the Davao Region of Southern Philippines where the major commercial banana plantations are located. More than 50% of the total Cavendish area are operated by corporate farms that are members of the Pilipino Banana Growers and Exporters Association (PBGEA) while the rest are owned by independent banana growers. An integrated disease management approach was already developed by each corporate banana plantation and is generally being implemented to prevent further occurrences of FW TR4. This was based on the concepts of early detection, early eradication and area isolation. Biosecurity protocols are in place to prevent spread of the disease. The infected plants are eradicated either through rice husk burning or chopping of infected plants and treated with Urea. The use of beneficial microorganisms such as Trichoderma and other biocontrol agents is widely adopted as supplemental treatment for infected sites. An effective weed control program is also an integral part of managing the disease as some weed species are known to be possible reservoir of the fungal pathogen. The construction of deep perimeter canals and regular maintenance of primary and secondary canals are as important to ensure good drainage conditions.
Amenazas fitosanitarias para la producción de musáceas en América Latina y el Caribe
Authors: Dita Miguel , Vargas Jorge E
Published: November 2024

Las musáceas son afectadas por diversos problemas fitosanitarios que, dependiendo de la susceptibilidad de la variedad, la agresividad del agente causal y las condiciones climáticas, pueden comprometer seriamente su producción y los medios de vida de quienes dependen de estos cultivos. En este trabajo solo se reportarán aquellos problemas fitosanitarios que por sus características epidemiológicas y relevancia económicas se consideran amenazas fitosanitarias para la región y América Latina y el Caribe (LAC). De esta forma, se consideraron siete enfermedades que fueron listadas en orden de importancia a criterio de los autores. Detalles sobre agentes causales, distribución y factores por los cuales esas enfermedades son consideradas amenazas fitosanitarias fueron también detallados en cada enfermedad. Al final se resumen factores epidemiológicos, socioeconómicos, institucionales que pueden acelerar la diseminación de esos patógenos en LAC, así como algunas orientaciones sobre estrategias de manejo.
Manejo integrado de plagas emergentes en bananos y plátanos
Authors: Guillén Sánchez César
Published: November 2024

El Manejo Integrado de Plagas (MIP) como estrategia se ha abocado en integrar las prácticas culturales, biológicas, físicas, químicas, genéticas y etológicas para mitigar los daños causados por los insectos en los cultivos (USDA-ARS 2018). De acuerdo con la FAO 2024, el MIP se desarrolló como respuesta al uso constante y creciente de los plaguicidas que trajo como resultado la resistencia y el surgimiento de plagas secundarias. Los alcances de estas estrategias de manejo se han enfocado en buena medida en lograr un uso racional de los agroquímicos, alcanzar una agricultura ambientalmente más sostenible y mejorar la salud de los trabajadores y consumidores.
Innovación para la sostenibilidad: Una apuesta por la resiliencia de la industria agroalimentaria
Authors: Toledo Patricia
Published: November 2024

Para alimentar a una población en crecimiento y hacer frente a los retos que nos impone el cambio climático, es necesario transformar la agricultura y maximizar la productividad y la calidad de los alimentos, al mismo tiempo que restauramos la salud de nuestro planeta. La agricultura sostenible utiliza una combinación de mejores prácticas habilitadas por la tecnología de vanguardia para desarrollar sistemas alimentarios resilientes y prósperos que mejoren las condiciones de la cadena de valor. En esta tarea, la Innovación para la sostenibilidad juega un papel fundamental para ofrecer al productor bananero, aquellas herramientas y soluciones tecnológicas integrales que contribuyen a maximizar la productividad y el rendimiento de su cultivo, de una forma sostenible. La investigación científica, debe traducirse en el desarrollo de tecnologías con beneficios sostenibles para la industria bananera tanto en el ámbito social, como en el económico y medio ambiental. Esto es viabilizar herramientas que sean más seguros tanto para los organismos que no sean su objetivo, como para los operarios, al tiempo de dar soluciones a problemáticas como las presentadas por los nemátodos y enfermedades en el cultivo promoviendo un balance sostenible para la salud del suelo.
Manejo de nutrición, agua y sostenibilidad del banano: La experiencia en Uraba, Colombia
Authors: Contrera Miguel A.
Published: November 2024

El incremento robusto de la productividad con estándares de calidad internacionales, asociada con sostenibilidad a larga data del proceso productivo agrícola en cada una de las unidades de producción, constituyen los únicos recursos disponibles para visualizar un futuro promisorio en la industria bananera. La mayor parte de los diferentes modelos productivos tanto en América Latina y el Caribe como en el resto de las regiones tropicales y subtropicales húmedas y subhúmedas, han dado señales de agotamiento a lo largo del tiempo con pocas posibilidades de sostenerse y mucho menos lograr cambios significativos y ascendentes en materia de productividad. Durante los años 2016-2022 el que esto escribe realizó un examen detallado de los factores que se encuentran asociados con la productividad del banano en la Región de Urabá, Colombia (7.5° LN), una de las regiones más recientemente abiertas al cultivo intensivo del banano para exportación en LATAM, con apenas 63 años de operación. La región bananera se asienta sobre suelos de origen aluvial procedentes de una cuenca hidrológica que corre por formaciones geológicas ígneas de procedencia granítica que baja de las montañas del Abibe e imprime tendencias ácidas a los bancos aluviales. Los suelos actuales se encuentran casi totalmente exentos de aportes de sedimentos nuevos de origen aluvial derivado de la ausencia de inundaciones de gran calado. El régimen pluviométrico presenta una variación de 2000 a 4000 mm, condicionado - en contraste- con la presencia de un periodo de déficit severo de humedad en el suelo entre diciembre y abril de cada año, que impacta en forma negativa tanto en una fuerte variación estacional de la producción durante el año agrícola como en el potencial productivo anual.
Application of infrared and near-infrared photosensitive pi-conjugated materials in the diagnosis and rehabilitation of sports injuries in aerobics
Authors: Cai Jun , Zhang Zhongxing
Published: November 2024

According to a survey in 2021, around 12% of people were injured during the exercise, and they require the immediate healing process. Several tissue healing materials are incorporated into the sports rehabilitation process. However, the materials have a high rejection reaction rate, poor effect, and low healing speed, which affects aerobics rehabilitation training. The research difficulties are overcome by applying infrared and near-infrared photosensitive pi-conjugated materials to tissue healing procedures to maximize the result of sports rehabilitation. The research analysis discusses the conjugated materials composition and biocompatibility properties which helps to manage the skin healing drug release rate and durations. In addition, the pi-conjugated materials having a high Nearer-Infrared (NIR) observation rate between 600 nm to 1000nm then the materials are suitable for the photobiomodulation therapy wavelength. Then, NIR triggers the drug release from conjugated materials that are used to locate the injured area for treatment and rehabilitation process. Therefore, infrared and NIR-based conjugated materials effectively support injury rehabilitation and damaged tissue regeneration processes. The system efficiency is evaluated using various skin healing rates with different experiments and experimental groups.
The Interpretation of Radio Stations Regarding Ethnic Broadcasts Based on Social Integration in Multi-Ethnic Communities in West Kalimantan
Authors: . Juniawati , . Pawito , Purwasito Andrik , Hastjaryo Sri
Published: November 2024

Social integration is a barometer for ensuring the sustainability of a dynamic and harmonious social life. Ideally, all elements of society create, maintain, and safeguard social integration, including in West Kalimantan-Indonesia. For more than 20 years, West Kalimantan has lived with psychological trauma due to the conflict between Madura and Dayak, Madura and Malay since the era of 1952 - 1997, Madura and Malay in 1999 (Abas, 2002; Asmara, 2002 in Amar, TT, 2007). There have been 17 recorded Dayak-Madurese ethnic conflicts (Kristianus, 2011). Ethnic broadcasts on the radio have becomeemergencyto encourage wakefulness
Safe and peaceful life in Indonesia. This paper aims to clarify the interpretation of radio media regarding ethnic broadcasts based on social integration in multi-ethnic communities. Creswell's (2017) interpretive qualitative methodology (Corbin, 2008) with a case study method (K. Yin, 2003). Data collection through in-depth interviews with Dermaga radio in Sekadau Regency and Kenari radio. Research findings: media interpretation of ethnic broadcasts based on social integration: (1) Ethnic broadcasts as an asset of tolerance, (2) Ethnic broadcasts, a form of shared responsibility. The factors that form media interpretations of ethnic broadcasts based on social integration: (1) Pancasila ideology as the basis for ethnic broadcasts, (2) The influence of interests and creativity, (3) Community preferences for cultural values, (4) Community encouragement to collaborate and participate.
AN ANALYTICAL STUDY OF CLAIM TYPES, SETTLEMENT PROCESSES, AND PERFORMANCE METRICS OF THE LIFE INSURANCE CORPORATION (LIC) OF INDIA
Authors:   Nirwan University Jaipur, Rajasthan, Panda Sriyalaxmi , Modi Ravi Kant ,   Nirwan University Jaipur, Rajasthan
Published: November 2024

The Life Insurance Corporation of India (LIC) is a key player in the insurance industry, providing financial security to policyholders and their beneficiaries. The total number of claims resolved, which includes death claims and maturity claims is a key indicator of operational effectiveness. This measure demonstrates LIC's dedication to client happiness, transparency, and regulatory compliance. Over the years, LIC has consistently maintained a high claims settlement ratio, demonstrating its dependability and integrity to policyholders. Streamlined operations, digital transformation, and proactive customer service initiatives all contribute to its success. The majority of claims are settled within specified time frames, indicating LIC's efficiency and ability to handle large volumes. This paper attempts to investigate the types of claims, claim settlement process that has been followed by LIC, and the main part of the study is to analyse the total amount as well as the growth in the claim settlement done by LIC of India during the period of study for ten years through the help of different statistical tools and techniques as per the need of the study.
ESSAIE D’INTERPRETATION PSYCHOPATHO-CLINIQUE DES PRATIQUES THERAPEUTIQUES DES MALADES MENTAUX EN MILIEU SUKU
Authors:   Chercheur associé à l’Institut de Recherche en Géopolitique et d’Etudes Stratégiques et Professeur à l’Université Pédagogique Nationale/Kinshasa-RDC, MANGWAMBA PASMAK Valentin TUMBWA
Published: November 2024

Cette réflexion en notre sens, est une main de relais vers une contextualisation et une conceptualisation de l’action du psychopathologue clinicien lorsqu’il se veut une place en Afrique. De cette conviction, la réflexion analyse une des pratiques congolaises, c’est-à-dire, suku qui recourt aux plantes médicinales, aux produits transformés en poudre et en liquide jusqu’aux séquences comportementales, aux interdits et aux rites intéressant des analyses psychologiquespsychologiques.
ELECTIONS EN REPUBLIQUE DEMOCRATIQUE DU CONGO : ENTRE MOYENS ET FINALITE D’ACTIONS POLITIQUES
Authors:   Professeur Associé à l’Université Pédagogique Nationale/Kinshasa-RDC, TSHIPATA Junior KABUIKA
Published: November 2024

La pratique électorale en République Démocratique du Congo, remonte de la période avant l’indépendance. Pour avoir longtemps été privé des droits politiques, le glas sonna afin que ce droit soit reconnu aux colonisés consécutivement à la décolonisation. C’est dans cette optique que les associations existant sans référence politique se mutèrent en combats politiques. Après avoir fondé le jeune Etat sur fond électoral, cette pratique fut de nouveau confisquée au peuple pendant le règne dictatorial dans le cadre de la guerre froide pour être réhabilitée dès 2005 avec l’avènement de l’Accord Global et Inclusif. Chaque fois que les élections ont été organisées dans ce pays, plusieurs crises ont tendance à désorienter les rôles qu’elles doivent jouer face aux enjeux présents et à venir. En lieu et place de considérer les élections comme une fin en soi, elles doivent par contre être considérées comme moyen permettant de proposer des politiques non extractives. Mots-clés : Démocratie, élections, légitimité, légalité, contentieux électoraux.
EXPLOITATION DES RESSOURCES MINIERES EN REPUBLIQUE DEMOCRATIQUE DU CONGO : ANALYSE SUR LES JEUX ET LES ENJEUX DES GRANDES PUISSANCES
Authors:   Professeur Associé à l’Université Pédagogique Nationale/Kinshasa-RDC, TSHIPATA Junior KABUIKA
Published: November 2024

La République Démocratique du Congo, a toujours été au centre des enjeux dans le monde. Dès sa découverte ou mieux ses premiers contacts avec les étrangers, ce pays a déjà été soumis à des pratiques de son exploitation. C’est donc au travers de ses potentialités que la RDC a toujours intéressé l’humanité surtout les grandes puissances. Si pendant la traite négrière, l’évangélisation a été présentée comme raison de la présence étrangère sur le vaste territoire congolais, durant la colonisation, ce fut le tour de la civilisation. Lorsque nous accédons à notre statut international d’Etat en 1960, un autre motif fut inventé : il s’agissait de la coopération pour besoin de développement. Dans sa nouvelle phase de la mondialisation, c’est le tour de la lutte contre la pauvreté. Tous ces différents mécanismes, sontbdes moyens prétextes permettant aux grandes puissances d’exploiter les riches ressources sous les yeux complices, soumis et impuissants des élites locales. Par conséquent, la prédation s’y installe suivie des guerres de toute nature. Loin d’être considérée comme malédiction, et dans le cadre de la mondialisation compétitive, ces ressources peuvent être à juste titre transformées base de développement par la restructuration des capacités étatiques. C’est tout le mérite de cette étude, qui révèle ainsi les dessous du grand jeu des puissances occidentales sur la RDC. Elle est donc au centre des enjeux autour de ses ressources en vue d’alimenter les industries de pointe qu’elle n’a pas. Mots-clés : Convoitises, Guerres, Mondialisation, Multinationales, Ressource minière, Ressource stratégique.
PLAIDOYER POUR UNE DEMOCRATIE PAR LE BAS EN REPUBLIQUE DEMOCRATIQUE DU CONGO
Authors:   Assistant de deuxième mandat à l’Université Pédagogique Nationale et au CRSIC/RDC, MASUKA Marcel YALA
Published: November 2024

L’architecture de cet article part d’un constat selon lequel, depuis l’annonce d’une série de scrutins à organiser pour mettre fin à la période de transition et à doter la République démocratique du Congo (RDC) d’institutions susceptibles de restaurer l’autorité de l’Etat, le constat est malheureux que jusqu’à ce jour le cycle électoral congolais connaît des problèmes d’arriérés des scrutins non encore organisés comme prévu dans l’accord signé en Afrique du Sud mais aussi la constitution du 18 février 2006 promulgué par le président de la république. L’importance des élections locales en RDC traduit la volonté du peuple de s’approprier de la démocratie et d’assoir la culture démocratique par le fait qu’ils sont habitués à vivre la démocratie par le bas, c’est aussi l’esprit de la décentralisation. Les élections locales en RDC pourront changer les donnes afin que la culture démocratique puisse s’assurer comme dans certains pays d’Afrique de l’ouest par exemple. Mots-clés : démocratie, décentralisation, bonne gouvernance, élections locales.
Technological and Pedagogical Knowledge in Relation to Teaching Proficiency among Criminology Faculty
Authors: Amba Rey James , Jala Chibert
Published: November 2024

The transition from traditional face-to-face to online learning as an alternative course during the pandemic shifts different factors toward educators. This study determined the technological and pedagogical knowledge about teaching proficiency among criminology faculty. Quantitative research using a descriptive-correlational design involved 103 respondents from the selected schools offering criminology programs in the province of Misamis Oriental who were selected through purposive sampling. The instruments used in this study were the Technological Survey Questionnaire, the Pedagogical Survey Questionnaire, and the Teaching Proficiency Evaluation adopted from Witting. The findings showed that most of the respondents were young adults, mostly females with master's degree units, served less than five years and had contractual employment. The level of technological knowledge among criminology faculty was average. Somehow, the level of teaching proficiency among criminology faculty was high. The teachers' technical knowledge of word processing was significant to pedagogy, multimedia to course packages, and basic internet to course packages. Integration, communication technology, and assessment were significantly related to mastery of content and pedagogy. Teachers' motivation was significant to the integration and communication technology; instruction was highly significant to mastery of content, pedagogy, and integration and communication technology. The assessment was significant for mastery of content, pedagogy, and ICT integration. It is recommended that further studies be conducted using strong qualitative tools to investigate deep technological and pedagogical knowledge about teaching competence.
FAST VARIABILITY OF THE OPTICAL POLARIZATION IN BLAZARS: FIRST RESULTS FROM BELOGRADCHIK OBSERVATORY
Authors: Bachev Rumen
Published: November 2024

Blazars are relativistic jet dominated active galactic nuclei, whose emission in the optical region is mostly synchrotron in nature and is consequently polarized. We monitored several objects on short or intra-night time scales in order to study the changes in their linear polarization parameters in different optical colors. Among the objects we studied were BL Lacertae, S4 0954+65, S5 0716+714, Mkn 501, 3C 66A, PKS 1420-01, PG 1553+115, 4C29.45, 4C 38.41, OW154.9, B2 1420+32, OJ 287, PKS 0735+178, 3C 279, Mkn 421, 4C 01.02,J1430+2303, B2 1308+32, 4C 27.50, etc. Our first results suggest the presence of rapid changes in both – polarization degree and the electric vector orientation in practically all objects we studied. This and similar polarization studies can facilitate the detailed modeling of the relativistic jet emission mechanisms.
ARE THE DWARF NOVAE OUTBURSTS ABSENT IN VY SCL-TYPE STARS LOW STATES?
Authors: Boeva Svetlana , Latev Georgi , Bogdanovski Rumen , Zamanov Radoslav
Published: November 2024

AAVSO long-term light curves of VY Scl type stars KR Aur and MV Lyr show episodically rises of the brightness in their extended (~ 10 years) low states. The intervals between these maxima are in the order of several hundred days. Probably they can be interpreted like dwarf nova outburst.
ASTROPHYSICAL APPLICATIONS OF STARK BROADENING OF SINGLY IONIZED PALADIUM SPECTRAL LINES
Authors: D. Christova Magdalena , S. Dimitrijević Milan
Published: November 2024

Spectral lines of Pd II are detected in a post-asymptotic giant branch star of spectral type B8 III in the globular cluster 47 Tucanae (NGC 104) and in Hg Mn star χ Lupi spectrum, for example. For hot stars as Hg-Mn stars, A and late B type stars, and white dwarfs, the Stark broadening data are of particular interest since they contribute to the spectra analysis and profile modelling of spectral lines. We found in the literature only one publication on the Stark width estimation of Pd II line, 1363.3 Å corresponding to 4d 9 2 D-5p 2 F o transition. The approximate estimation is made based on Stark width dependence of ionization potential of the lower level of the corresponding transition. In this contribution, modified semi-empirical method is applied for the calculation of Pd II spectral lines for an electron density of 10 17 cm -3 and for a temperature from 5 000 K to 80 000 K. The influence of Stark broadening in Pd II spectra of DB and DO white dwarfs, and of A type stars is examined.
MULTICOLOR PHOTOMETRY OF CATACLYSMIC VARIABLE STAR BG TRIANGULUM
Authors: Latev Georgi , Boeva Svetlana , Zamanov Radoslav , Stefanov Stefan , Moyssev Miroslav
Published: November 2024

In this study we present the multicolor UBVRI observations of the cataclysmic variable star BG Tri during its superhump activity. The variability amplitudes and color indices during the active and quiescent phases of the system are determined and discussed.
SPACE WEATHER RESEARCH: RECENT RESULTS AND ONLINE CATALOGS
Authors: Miteva Rositsa , Dechev Momchil , W. Samwel Susan
Published: November 2024

Space weather is a generic term used to describe the influence of solar activity in the heliosphere, on the planetary magnetospheres and atmospheres, technology - both space borne and ground based, and on human health and life. We highlight selected results from our recent studies on a variety of space weather phenomena, their solar origin and inter-relationship. The impact of space weather on satellites has been also explored by us in view of the SpaceX storm in February 2022. A comparison with the largest to date geomagnetic storm in the current solar cycle is also shown.Furthermore the recently compiled catalogs of solar energetic particles (protons and electrons), solar flares, radio emission signatures and geomagnetic storms are also presented. All catalogs are provided freely to the scientific community via their dedicated platforms: https://catalogs.astro.bas.bg/ and https://www.nriag.sci.eg/ace_electron_catalog/.
FIRST OBSERVATIONAL DATA FROM THE MINI-NEUTRON MONITORING STATION AT THE ROZHEN NATIONAL ASTRONOMICAL OBSERVATORY (MNMS-ROZH)
Authors: Petrov Nikola , Tsvetkov Tsvetan , Mishev Alexander , Shirov Grozdan
Published: November 2024

We demonstrate the first observational data from the newly built mini-neutron monitoring station at the Rozhen National Astronomical Observatory. The data is freely accessible with search option in the up-to-date archive. Provided are the main parameters of the station and equipment. The station is equipped with sensors for measuring and storing in accessible online data base of meteorological parameters, which are also provided.
OBSERVATIONS OF TOTAL SOLAR ECLIPSES – TASKS AND RESULTS
Authors: Tsvetkov Tsvetan , Petrov Nikola
Published: November 2024

Despite today we have advanced instruments for high-resolution ground- and space- based solar observations, total solar eclipses remain invaluable for solving various speciﬁc tasks. We summarize the experiments we fulﬁlled and the results we obtained during our scientific research expeditions for observations of total solar eclipses. The main tasks our team completed are dedicated to registering and revealing the fine structure of the white-light solar corona and determining the boundaries of its electronic component observing its polarized light. We also pay attention to the accompanying events that the occulted Sun can cause like shadow bands and to the changes in atmospheric conditions (temperature, wind speed and direction, etc.) on Earth. We discuss an experiment for defining the inner boundaries of distribution of neutral dust in the corona and reveal plans for the upcoming expeditions.
SAMPLE OF COMPACT EXTRAGALACTIC RADIO SOURCES BY CROSS- MATCHING THE GAIA AND VLASS CATALOGS
Authors: Arsenov Nestor , Frey Sandor , Kovacs Andras , Slavcheva-Mihova Lyuba
Published: November 2024

Compact radio sources are scarce objects, yet important as reference points for astrophysical and space-flight applications. We present >3900 potential new compact radio sources, derived from a cross-match between the VLASS radio catalog and the recently published Quaia catalog. The VLASS catalog does not provide the type of its objects, while the Quaia catalog is derived from the Gaia catalog by selecting sources with negligible proper motion and performing a k-means search method on colour-colour parameter spaces to extract quasars. We find more than 45000 matched sources between the two catalogs with separations less than 2” from which >3900 present themselves as high fidelity compact radio source candidates by having radio flux density >20 mJy and a flux compactness ratio f_peak/f_tot>0.8. A proposal for observing 80 of these >3900 sources has been submitted to the European VLBI Network which should validate the candidates and provide constraints on the larger sample. We further analyze and discuss other cosmologically important qualities of the matched sources, like radio-loudness, its correlation to the spacial density in clusters and voids and to colour- colour parameter spaces.
BOUNDS ON GRAVITON MASS FROM STELAR ORBITS AROUND Sgr	A	*
Authors: Borka Jovanović Vesna , Borka Duško , Jovanović Predrag
Published: November 2024

In this paper our achieved results on the bounding graviton mass by the observed stellar orbits around Sgr A * are given. By comparison of the observed orbits of bright stars in the Galactic center with their simulated orbits in Yukawa gravitational potential, we estimated the constraints on the parameters of this modified theory of massive gravity. Then, we connected one of these parameters with the Compton wavelength of the graviton and used it to estimate the graviton mass. In that way we obtained a new method of determining the upper limit of graviton mass, completely independent from other methods published until now. The constraints on the Compton wavelength of the graviton and its mass, obtained using this method, were in a good agreement with the coresponding LIGO results. This scientific research has been done at the Astronomical Observatory Belgrade, in cooperation with Vinča Institute of Nuclear Sciences.
SERBIAN-BULGARIAN COOPERATION ABOUT GAIA ALERTS DURING 2023
Authors: Damljanović Goran , Stojanović Milan , Bachev Rumen , Boeva Svetlana
Published: November 2024

From October 2014 until now (about 10 years) we did the astronomical observations of the Gaia Alerts or Gaia Fellow Up Network for Transients Objects (Gaia-FUN-TO). At 2013 we organized our local cooperation “Serbian-Bulgarian mini-network telescopes” to get better results. Also, the mentioned observations and investigations are in line with actual joint research SANU-BAN project “Gaia astrometry and fast variable astronomical objects” from 2023 to 2025; SANU-BAN are Serbian and Bulgarian Academies of Sciences. Now, there are 8 astronomical instruments at two sites in Bulgaria (at Belogradchik and Rozhen) and one site in Serbia (Astronomical Station Vidojevica - ASV). Usually, we did about 15 Gaia Alerts objects per year. During 2023, we did 12 Gaia Alerts: Gaia22ang (5 times), Gaia22dze, Gaia23bay (6), Gaia19dmj (2), Gaia21cgt (2), Gaia22eem (2), Gaia23afy, Gaia23cer (2), Gaia23cri (3), Gaia20cwd, Gaia23bbk and Gaia23cvq; about 300 CCD images were done using the 60 cm and1.4 m ASV telescopes. We present some results, here.
COLUMN DENSITY DISTRIBUTIONS FROM DECOMPOSED MAPS OF STAR-FORMING REGIONS
Authors: Marinkova Lyubov , Veltchev Todor , Donkov Sava
Published: November 2024

Probability distribution functions of mass- (ρ-PDF) and column density (N-PDF) in star-forming regions often display one or multiple power-law tails (PLT) in the high-density range. The correct PLT extraction is of key significance for understanding morphological and dynamical structure of star-forming regions since the PDF properties can be directly linked to the role of different factors in the star formation process: gravity, turbulence, magnetic fields, etc. Many observations indicate that the PLT regime in the N-PDF corresponds to highly fragmented, filamentary regions in a star-forming cloud – thus, it is interesting to compare N- PDFs of small-scale structures extracted in those areas with the N-PDF of the whole cloud. We present analyses of the N-PDFs in Galactic regions of various star-forming activity obtained from Herschel data, by use of a novel method (Guang-Xing Li 2022) for decomposion of a map into multiple components containing structures of different size range (scale) and applying the PLT extraction technique by Veltchev et al. (2019, 2024).
HYDRODYNAMIC SIMULATIONS OF SUPERNOVA REMNANTS ENCOUNTERING HIGH DENSITY ENVIRONMENT
Authors: Mihić Stefan , Onić Dušan , Urošević Dejan , Arbutina Bojan
Published: November 2024

In this work we develop three-dimensional numerical simulations, based on PLUTO code (Mignone et al. ApJS (2012) 198, 7M) in order to simulate hydrodynamic, and radio evolution of supernova remnants in non-homogeneous interstellar matter. The supernova remnant, and the interstellar matter around it, used in the simulations are based on 3C396 that has higher concentration of interstellar medium positioned on one side, instead of uniform distribution. The simulations are performed by modifying additions to basic PLUTO code, made by previous researchers, such as calculation of shock modification by cosmic rays, cosmic ray acceleration by mechanism of non-linear diffusive shock acceleration, and magnetic field amplification caused by combined effect of resonant, and non-resonant instabilities. Results include comparison of radio evolution tracks, and time evolution of parameters such as radius, pressure, adiabatic index, magnetic field strength, morphology of the remnant, etc. between homogeneous, and non-homogeneous supernova remnant surroundings.
TECHNICAL PERFORMANCE AND FIRST OBSERVATIONAL RESULTS OF AZ1500 AT NAO ROZHEN
Authors: Minev Milen
Published: November 2024

The AZ1500 telescope is designed with modern optical and mechanical components and aims to enhance the observation capabilities of the Rozhen National Astronomical Observatory. Here we present the initial tests, setup procedures, and results from the conducted observations. The tests include checking the performance of the instrument itself and photometric observations of various types of objects. The results of these initial tests provide us with valuable insights into the capabilities of the telescope and help us build a fully robotic telescope for observations and research campaigns.
MODELLING OF HYDROGEN IONS WITH	H	2	GAS
Authors: Nikitović Željka , Raspopović Zoran
Published: November 2024

In this work we present a complete cross sections set and transport properties of hydrogen ions in H 2 gas. Ionic charge transfer reactions with molecules are indispensable elementary processes in the modeling of kinetics in terrestrial, industrial and astrophysical plasma in the detection of dark matter. A Monte Carlo simulation method is applied to accurately calculate transport parameters in hydrodynamic regime. We discuss new data for hydrogen ions in H 2 gas where the mean energy the flux and bulk values of reduced mobility and other transport coefficients are given as a function of low and moderate reduced electric fields E/N (E-electric field, N-gas density). These data as essential input parameters for modeling various environments. Low temperature can change the state of metals, gases, liquids and solids, cause damage to organisms depending on length of exposure and change the functionality of mechanized processes. Data on swarm coefficients for positive and negative ions are required for hybrid and fluid codes [1, 2] and the current focus on liquids or liquids in rare gas mixtures dictates the need to produce data compatible with these models.

References:

[1] R. D. White, W. Tattersall, G. Boyle, R. E. Robson, S. Dujko, Z. Lj. Petrović, A. Banković,M. J. Brunger, J. P. Sullivan, S. J. Buckman and G. Garcia, Applied Radiation and Isotopes 83 (2014) 77-85.

[2] S. Marjanović, A. Banković, D.A. Cassidy, B. Cooper, A. Deller, S. Dujko and Z. Lj. Petrović, J. Phys. B: At. Mol. Opt. Phys. 49 (2016) 215001.
ANALYSIS OF A SELECTION OF TIME SERIES OF METEOROLOGICAL OBSERVATIONS IN BULGARIA BETWEEN 1900 – 2023
Authors: Shirov Grozdan , Tsvetkov Tsvetan , Petrov Nikola
Published: November 2024

Rich archive of meteorological observations from different stations on the territory of Bulgaria, digitalized and analyzed. The main source of data is the yearbook of the National Institute of Meteorology and Hydrology by the Ministry of Environment and Water for the period of 1900 to 2023. This is the most complete as well as the only trustworthy source of data for obtaining scientific results. Our mathematical analysis is based on the monthly average value of temperature and precipitation. For the mathematical analysis we have used mainly software packages of MATLAB. For the digitalization we have used optical character recognition (OCR) packages such as Tesseract and Textract (from Amazon Web Services). Our results are oriented in search of connections between various factors influencing locally short term as well as centennially of the analyzed parameters.
ROGER JOSEPH BOSKOVICH (RUĐER BOŠKOVIĆ)
Authors: V. Vuca Petar
Published: November 2024

Ruđer Bošković is one of the most prominent scientists of his time, born on May 18, 1711, Dubrovnik, Croatia, died on February 13, 1787, Milan, Italy. Bošković is: astronomer, mathematician, physicist, diplomat, philosopher, poet, surveyor and engineer. He was one of the first scientists who tried to explain the eclipse of the Sun and the Moon. Ruđer's major work "Theoria philosophiae naturalis" is extremely important for today's understanding of many problems in philosophy and natural sciences. The work contains Bošković's presentations on matter and forces acting in nature.
INSTRUMENTS, EQUIPMENT AND OBSERVATIONS AT ASTRONOMICAL STATION VIDOJEVICA
Authors: Vukotić Branislav
Published: November 2024

The Astronomical Station Vidojevica (ASV) is located at the summit of Vidojevica mountain near the town of Prokuplje. From the start of its construction, two decades ago, the station is under continuous development. At present it features 1.4m, 0.6m and 0.4m reflector telescopes for photometry observations that are for the most part operated in a remote manner. We present the instruments and observational equipment but also the astro-climate conditions and the details related to the process of observational time allocation. The present collaboration between Rozhen National Astronomical Observatory and ASV is evident in organization of simultaneous observations and exchange visits of scientific and technical personel.
CYGNUS LOOP OBSERVATIONS WITH BTA/SCORPIO-2
Authors: Knežević Sladjana , Moiseev Alexei , C. Raymond John
Published: November 2024

We present Fabry-Pérot interferometric observations of the northeastern shock filaments in the Cygnus Loop supernova remnant. These observations were obtained using the SCORPIO-2 spectrograph (Spectral Camera with Optical Reducer for Photometrical and Interferometrical Observations - 2) at the 6m Big Telescope Azimuthal (BTA). We will show preliminary results on Hα-line parameters measured in shock filaments across a 6.3' x 6.3' field of view, with an angular resolution of 3" and a high spectral resolution of 23 km/s (FWHM).
X-RAY HARDNESS RATIO INFLUENCE ON THE MID-INFRARED PARAMETERS OF AGNS
Authors: Lakićević Maša , Kovačević-Dojčinović Jelena , Č. Popović Luka
Published: November 2024

We use the resulting parameters of the two different model decompositions of mid- infrared (MIR) Spitzer IRS spectra of 1) extragalactic sources – galaxies and 2) active galactic nuclei (AGN). These resulting parameters are spectral components such as the AGN, PAH, H II, stellar contribution components, spectral index, silicate contribution, etc. It is found that some of these parameters correlate with X-ray hardness ratios (especially HR1). This reveals the insight in the energy bands of X-ray radiation that influences the MIR parameters and it can point to the AGN sources that are more obscured. HR1 correlations indicate the high attenuation of soft X-ray radiation by the dust.
THE NEW 60-CM TELESCOPE OF THE SHUMEN UNIVERSITY ASTRONOMICAL CENTER
Authors: Marchev Dragomir , Borisov Borislav , Ibryamov Sunay , Atanasova Teodora , Yordanova Galina , Georgiev Alex
Published: November 2024

We present the 60cm Ritchey-Chretien telescope of the Shumen University Astronomical Center and its equipment allowing remote-controlled observations. We found that the unit is appropriate for observations of different types of stars up to 17 mag with precision better than 0.02 mag for short exposures. The fainter stars would require exposures in the order of several minutes. We determine the transformation equations for transfer to standard Sloan g′, r′, i′ photometric system and standard set of UBVRI filters with response curves close to those listed in Bessell (1990).We briefly describe the telescope assembly process and calibration procedures. The telescope will mainly be used for photometric observations of variable stars and finally, we present the first observational results gathered with the new instrument.

References:

[1] Bessell, M.S. 1990, PASP, 102, 1181.
INSTRUMENTS AVAILABLE TO UrbObsBel
Authors: Pavlović Rade , Cvetković Zorica , Bjelajac Dajana , Damljanović Goran , Lukić Dragan , Rovčanin Branislav , Samurović Srđan , Simić Zoran
Published: November 2024

Urban Observatory of Belgrade (UrbObsBel) is a project hosted by Astronomical Observatory of Belgrade. Our main aim is to study, applying well-tested astronomical techniques, light pollution and dynamical processes of the Serbian capital, Belgrade. Our observations will provide valuable information on energy usage distribution that has a high impact on the environment and ecosystems. We already mounted or plan to mount several observational instruments covering spectral range from visible (400 nm) to infrared (13 micron), and use both broadband and hyperspectral imaging systems in our synoptic study. Apart from study of the urban dynamics we intend to use several instruments aimed at the study of sky brightness and various sources of sky pollution such as street lights. This would be achieved mounting identical instruments at Astronomical Observatory of Belgrade (AOB) and at our Astronomical Station at Vidojevica (ASV). Until now we have acquired the following equipment: Web and file server, TESS-W photometer, Unihedron Sky Quality Meter, FLIR and AllSky Camera.
MOLECULAR SPECIES AND DATA RELEVANT FOR ASTROCHEMISTRY
Authors: A. Srećković Vladimir , Tošić Sanja , Vujčić Veljko , Jevremović Darko
Published: November 2024

Atomic and molecular collisional and radiative processes are crucial for understanding the different environments within our universe (Albert et al. 2020). Data and databases on atomic and molecular processes have grown in importance for constructing models and simulations of complex physical/chemical processes, as well as interpreting observations and measurement findings in a variety of sectors (Srećković et al. 2020). The data can be used for a variety of applications, such as modeling non-local thermal equilibrium of the early universe's chemistry, modeling of the solar atmosphere, modeling of white dwarf atmospheres etc (Srećković et al. 2022). For conditions that exist in laboratory plasmas, planetary atmospheres, the ionosphere and other areas of science, it is primarily aimed at obtaining cross sections and rates coefficients for certain collisional and radiative processes. In this contribution, we present that type of data.

Acknowledgments:

This research was supported by the Science Fund of the Republic Serbia [Grant no. 3108/2021, NOVA2LIBS4fusion and Grant No. 7749560, EGWIn].

References:

[1] Albert, D., Antony, B. K., Ba, Y. A., Babikov, Y. L., Bollard, P., Boudon, V., ... & Zwölf, C. M. : 2020, Atoms, 8(4), 76.

[2] Srećković V.A., Ignjatović L.M.,Dimitrijević M.S., Molecules, 2020, 26(1), 151.

[3] Srećković V.A., Ignjatović L.M., Kolarski A., Mijić Z.R., Dimitrijević M.S., Vujčić V., Data, 2022, 7(9), 129.
FRACTIONAL BROWNIAN MOTION (fBm) SIMULATIONS AS A DIAGNOSTICS FOR FRACTAL STRUCTURE OF MOLECULAR CLOUDS
Authors: Stanchev Orlin , Irincheva Vladimira , Veltchev Todor
Published: November 2024

The structure formation in the interstellar medium is largely dominated by mutli-scale processes such as turbulence through its energy cascade and gravity, which is responsible for the formation of the densest structures. Measuring the scaling behavior of a cloud and decomposing its building blocks using several statistical techniques can be helpful for understanding the physical mechanisms at the origin of cloud structure formation and ultimately the formation of stars. Fractal Brownian motion simulation is a simple way to mimic the multi- scale properties of the interstellar medium and can be used as a diagnostic for the fractal nature of the molecular clouds. As an extension of our previous study (Bogdanova et al., 2020), we apply fBm diagnostics for testing the reliability of the Dendrogram technique for determination of the fractal dimension in the Molecular cloud Rosette.
PHOTOMETRIC ANALYSIS OF THE VARIABILITY OF LBV STARS AND CANDIDATES IN IC 342
Authors: Valcheva Antoniya , Nedialkov Petko , Sholukhova Olga , Tikhonov Nikolay , Minev Milen , Kostov Andon
Published: November 2024

Luminous blue variables are a class of massive, unstable stars that exhibit significant photometric variability. Their variability can be linked to their significant mass-loss rates, envelope instabilities and sometimes binarity. These factors can affect the star's brightness and spectrum. LBVs are relatively rare, so studying their variability is challenging. To understand their different types of photometric variability, continuous long-term observations are needed.In this study, we present the analysis of the optical light curves of LBV stars and LBV candidates in the galaxy IC 342. Our observations cover time interval of nearly 4 year and were taken in B and R bands with the 2m telescope at NAO Rozhen, Bulgaria. We supplement our photometry with data from the Pan-STARRS catalog DR1 to expand the light curve coverage and to study both microvariability and long-term variability.
A IMPORTÂNCIA DA ODONTOLOGIA HOSPITALAR NO CONTEXTO DA REDUÇÃO DE ÓBITOS DE PACIENTES INTERNADOS EM UNIDADES DE TERAPIA INTENSIVA
Authors: Sousa Brenda Raissa Dos Santos , Ribeiro Erika Cristina Da Cruz , Lima Maria Gabrielle De Jesus , Lira Ricardo Martins
Published: November 2024

O ambiente hospitalar é caracterizado pela atuação multiprofissional e interprofissional, e para que seja contemplada a integralidade da assistência aos pacientes, é fundamental a presença do Cirurgião-dentista (CD) na equipe hospitalar. A Odontologia Hospitalar (OH) tem por finalidade a prevenção, o cuidado e o tratamento de pacientes internados nestes cenários, favorecendo a melhora do quadro clínico (JUNIOR; DITTO; ALMEIDA, 2024).  Os cuidados bucais aos pacientes críticos internados requerem uma atenção especializadas, com isso a resolução da Agência Nacional de Vigilância Sanitária (ANVISA), por meio da RDC no 7 de 24 de fevereiro de 2010, assegurou o acesso aos recursos assistenciais destes pacientes a beira leito, incluindo a assistência odontológica como parte do cuidado integral, assim como o Projeto de Lei no 2.776/2008 que determinou a obrigatoriedade do CD nas equipes de UTIs (Unidades de Terapia Intensiva) (BARROS et al, 2024).
CORTICOTERAPIA ANTENATAL TARDIA, RISCOS E BENEFÍCIOS MATERNOS E FETAIS: UMA REVISÃO DE LITERATURA
Authors: Cascabulho Ana Maria Esteves , Alves Catharina Vieira de Lima , Gomes Neto Djalma , Beltrão Lucas Pizano Vieira , Souza Melissa Borges de , Teixeira Raphael Anthero de Miranda , Lemos Rogéria Maria Bazeth , Oliveira Samira Túlia Macedo de , Souza Tayane Silva Lessa Carneiro de , Carmo Victória Santos Torres do
Published: November 2024

This article addressed late antenatal corticosteroid therapy, a treatment that has been adopted in pregnant women between 34 0/7 weeks and 36 6/7 weeks of gestation, and who are at high risk of premature birth. One of the main complications and causes of morbidity in late preterm neonates is respiratory distress syndromes, and corticosteroids can aid in fetal lung maturation, preventing and/or reducing complications of this nature. However, the use of these drugs in the late antenatal period can pose some risks to the well-being and health of the mother-baby binomial. Therefore, the general objective of this article was to analyze the literary evidence about the efficacy of late antenatal corticosteroid therapy, both for the fetus and the pregnant woman. The specific objectives were to understand how corticosteroids should be administered, and whether the benefits provided outweigh the potential risks of their use at this stage of pregnancy. A literature review on the topic was developed, including scientific articles published in the last five years (2019-2024). Data collection was carried out through PubMED. The results confirmed that late antenatal corticosteroid therapy is effective in reducing pulmonary complications and should be considered in cases of high risk of premature birth. The main risks are increased chances of maternal hyperglycemia and, consequently, fetal hypoglycemia. Some studies also point to psychological and neurocognitive problems for the baby in the future. However, it was concluded that the benefits brought by corticosteroids to lung maturity outweigh the potential maternal and fetal risks, but treatment should be carried out with caution, evaluating each case individually and monitoring the long-term repercussions.
O IMPACTO DA SUSTENTABILIDADE NOS PROCEDIMENTOS LICITATÓRIOS NA BUSCA DO DESENVOLVIMENTO NACIONAL SUSTENTÁVEL
Authors: Ribeiro Robert Castro
Published: November 2024

Law No. 14,133/2021 brings significant innovations, including the incorporation of sustainability with a focus on the environmental aspect in public contracts. Although the old Law No. 8,666/93 already provided, in its article 3, for the promotion of sustainable national development, the new legislation intensifies this approach by integrating more robust environmental sustainability criteria in public tenders and purchases. However, the effective adoption of these principles represents a new challenge for public managers and suppliers, requiring adaptations and the creation of new practices to ensure their application.