Effect of Seasonal Variations and Collection Form on Antioxidant Activity of Propolis from San Juan, Argentina

María I. Isla,Iris C. Zampini,Roxana M. Ordóñez,Soledad Cuello,Belén Carrasco Juárez,Jorge Esteban Sayago,María I. Nieva Moreno,María Rosa Alberto,Nancy R. Vera,Enrique Bedascarrasbure,Alejandro Alvar 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.6

Propolis was included in the Argentine Food Code as a functional food. The chemical parameters and antioxidant properties of propolis samples from the same colonies of Apis mellifera in San Juan (Cuyo region, Western Argentine) were compared every month for 1 year using two collection methods. Chemical parameters were analyzed by the spectrophotometric method and fingerprinting using high-performance liquid chromatography with ultraviolet detection. The antioxidant activities of propolis samples were measured using model systems including the analysis of the scavenging activities for 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals and the β-carotene bleaching assay. The results showed that propolis had a higher free radical scavenging and lipid peroxidation inhibitory capacity than butylated hydroxytoluene and quercetin, antioxidants used in the pharmaceutical and food industries. The concentration required to scavenge 50% of free radicals (SC50) values differed depending on the sample collection month. Samples collected in November had the highest antioxidant capacity. In all cases, SC50 values of propolis samples obtained by scraping were similar to those collected from a wire mesh (5μg/mL for ABTS and 20–30μg/mL for DPPH radicals). A significant positive correlation was found between the antioxidant capacity and flavonoid content of each analyzed extract. The chemical profiles were very similar. Galangin (3,5,7-trihydroxyflavone), an antioxidant compound, was detected in all samples as a major compound. The chromatographic profile suggests that of Baccharis sp., which would be one of the botanical sources of propolis from western Argentina, and the content of galangin can be used as a parameter for evaluating propolis quality. Our results suggest that Argentine propolis from Cuyo is a promising source of bioactive compounds as ingredients for developing functional foods with a beneficial impact on oxidative stress.

LETTER TO THE EDITOR : Epoprostenol: Flushing or Erythroderma?

Mar?a Luisa Mart?nez Mart?nez,Eduardo Escario Travesedo,Ana Nu?ez Ares,Syong Hyun Nam Cha,Mar?a Rodr?guez V?zquez,Juan Gabriel C?rdoba Soriano,Rafaela S?nchez Sim?n Talero 대한피부과학회 2013 Annals of Dermatology Vol.25 No.2

Benign osteoblastoma of the mandible: a case report

María del Carmen Navas-Aparicio(María del Carmen Navas-Aparicio ) 대한구강악안면외과학회 2023 대한구강악안면외과학회지 Vol.49 No.1

Osteoblastoma is a rare benign neoplasm formed by osteoid tissue and well-vascularized bone that occurs mainly in children and adolescents. It appears primarily in the long bones, vertebral column, and small bones of the hands and feet, and not typically in the skull and maxillary bones. The purpose of this study is to present the case of an 8-year-old girl with a diagnosis of right mandibular osteoblastoma and a review of the relevant literature. The goals of treatment were to preserve dental occlusion, masticatory function and facial symmetry while minimizing the effects on patient body image and quality of life. Osteoblastoma, although it is benign, can be aggressive, and its treatment will depend on the timing of diagnosis, size and location. Early diagnosis is essential to avoid not only radical surgery as in the case presented, but also to help minimize the risk of possible relapse and potential malignancy of a benign osteoblastoma.

Jazyk písomností Slovákov na dolnej zemi: na príklade slovenského vojvodinského evanjelického cirkevného zboru a. v. Kysáč v rokoch 1773 – 1918

Daniela Marčoková(Daniela Marčoková ),Jasna Uhláriková(Jasna Uhláriková ) 한국슬라브어학회 2022 슬라브어연구 Vol.27 No.2

Mass migrations of Slovaks from the north of Hungary to the south (to the Lowland) in the 18th and 19th centuries are part of the migration of serfs as part of the systematic colonization of Empress Maria Theresa after the expulsion of the Turks from this territory. Coexistence with other nations or old settlers, as well as state politics, naturally influenced further development and determined the life of immigrants in national, cultural, economic, social, as well as linguistic terms. The aim of this paper is to present the linguistic situation of the Slovaks in the settlement of Kysáč in today's Serbia based on church documents from their immigration to the end of the First World War. We examined the chronicle of the Kysáč priest František Jesenský from 1773, registers from the years 1787 – 1918, the minutes of the canonical visitation of the Kysáč church choir from 1835, the minutes of the school board of the Kysáč school from the years 1895 – 1915, the minutes of the presbytery conventions 1912 – 1916 and other documents of the church archive of the Slovak Evangelical Church a. c. in Kysáč.

Work Ability Index: Psychometric Testing in Aeronautical Industry Workers

González-Domínguez María Eugenia,Fernández-García Elena,Paloma-Castro Olga,González-López Regina María,Rivas Pérez María Paz,López-Molina Luis,García-Jiménez Jesús,Romero-Sánchez José Manuel 한국산업안전보건공단 산업안전보건연구원 2024 Safety and health at work Vol.15 No.1

Background The Work Ability Index (WAI) is an instrument that measures work ability. The wide dispersion of the WAI internationally has led to its adaptation for use in different countries. This study aimed to evaluate the psychometric properties of the Spanish version of the WAI. Methods A methodological design was used over an opportunistic sample of 233 workers in the aeronautical industry in Spain. Reliability was evaluated through internal consistency. Factorial validity, known groups, and convergent validity were tested. Results The Cronbach's alpha and item-total correlation indicated an adequate internal consistency. The confirmatory factor analysis, performed to evaluate the factorial validity, found adequate fit indices for a two-factor solution with a high correlation between the factors. Factor 1, “Subjectively estimated work ability and resources”, was composed of 3 subscales and factor 2, “Ill-health-related”, of 2 subscales. Subscales 4 and 6 had loading in both factors. Workers under 45 years of age obtained higher significant scores than older ones. Convergent validity was also evidenced since WAI was highly correlated with self-assessment of health status. Conclusions The Spanish version of the WAI has shown evidence of reliability and validity in this study, supporting its use in individual and collective health surveillance by occupational health professionals. The factorial solution that was found has previously been reported in another international context. However, further research is needed to resolve the discrepancies detected in the role of some subscales between other national and international studies. Background The Work Ability Index (WAI) is an instrument that measures work ability. The wide dispersion of the WAI internationally has led to its adaptation for use in different countries. This study aimed to evaluate the psychometric properties of the Spanish version of the WAI. Methods A methodological design was used over an opportunistic sample of 233 workers in the aeronautical industry in Spain. Reliability was evaluated through internal consistency. Factorial validity, known groups, and convergent validity were tested. Results The Cronbach's alpha and item-total correlation indicated an adequate internal consistency. The confirmatory factor analysis, performed to evaluate the factorial validity, found adequate fit indices for a two-factor solution with a high correlation between the factors. Factor 1, “Subjectively estimated work ability and resources”, was composed of 3 subscales and factor 2, “Ill-health-related”, of 2 subscales. Subscales 4 and 6 had loading in both factors. Workers under 45 years of age obtained higher significant scores than older ones. Convergent validity was also evidenced since WAI was highly correlated with self-assessment of health status. Conclusions The Spanish version of the WAI has shown evidence of reliability and validity in this study, supporting its use in individual and collective health surveillance by occupational health professionals. The factorial solution that was found has previously been reported in another international context. However, further research is needed to resolve the discrepancies detected in the role of some subscales between other national and international studies.

Aggrecan catabolism during mesenchymal stromal cell in vitro chondrogenesis

María Lucía Gutiérrez,Johana María Guevara,Olga Yaneth Echeverri,Diego Garzón-Alvarado,Luis Alejandro Barrera 한국통합생물학회 2013 Animal cells and systems Vol.17 No.4

During skeleton formation, mesenchymal cells condense and differentiate into chondrocytes in a process known as chondrogenesis. Glycosaminoglycans (GAGs), main components of aggrecan in the extracellular matrix (ECM),have an important role in this process. An in vitro simplified system has been devised to study chondrogenesis using mesenchymal progenitor cells. Although the capacity of mesenchymal stromal cells to differentiate into the chondrogenic lineage is well established, there is a lack of knowledge with respect to lysosomal enzyme activity during the chondrogenic process. To further understand GAG’s catabolic activities during in vitro chondrogenesis, we evaluated three lysosomal enzymes. Chondrogenic differentiation was demonstrated by Alcian blue positive stain quantified by a grading system using ImageJ. Enzyme activity for N-acetylgalactosamine-6-sulfate-sulfatase during chondrogenic induction decreased significantly with time of culture; b-galactosidase enzyme activity had a similar tendency of temporal activity. On the contrary, b-glucuronidase enzyme activity decreased from the first to second week of induction, but remained the same during the third week of culture. Aggrecan’s immunohistochemistry values for aggregates under chondrogenic induction revealed a similar temporal pattern to that of N-acetylgalactosamine-6-sulfate-sulfatase and b-galactosidase enzyme activity. This work has contributed to the evaluation of enzyme activities associated with GAG degradation, critical component of cartilage ECM. These findings are relevant in understanding the role of enzymes responsible for degradation of molecules predominantly synthesized in the chondrogenic differentiation process. A better understanding of the roles of these enzymes during development could help elucidate further association of deficiencies of these enzymes in skeletal pathologies, primarily chondrodysplasias.

Description of new Alloxysta (Hymenoptera: Cynipoidea: Figitidae) species from India

Mar Ferrer-Suay,Jesús Selfa,María Victoria Seco-Fernández,Juli Pujade-Villar 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.4

One new species has been discovered: Alloxysta nottoni Ferrer-Suay & Pujade-Villar sp. nov. This new species is here described and illustrated. An update of the Charipinae knowledge in India and a key of the Charipinae present in this country are also given.

When Hallyu Meets Argentina s Open TV : Perceptions, Awareness, and Behavior Change of Hallyu Fans in the Aftermath of K-drama Viewing

Marí,a del Valle Guerra,Paula Ferná,ndez 지역사회학회 2017 지역사회학 Vol.18 No.2

Not so long ago, the Hallyu was able to reach the Argentinian public in an opposite way to the one witnessed in Asia. In Asia, as it is usually accepted, TV dramas started the Korean Wave and then gave way to K-pop, while in Argentina, K-pop was first a success and then gave way to TV dramas. In 2014, K-pop was heavily promoted in Argentina’s open TV when a popular local TV program showcased K-pop songs and choreographies based on the genre. TV dramas did not share the same fate, since during 2015 only one program was broadcast, exclusively on cable TV. In 2016, however, three Korean TV dramas ( Stairway to Heaven , My Love from the Stars and Angel Eyes ) were broadcast on Argentina’s open TV through Channel 11 (Telefe), captivating a new audience and generating comments and impressions on viewers who were facing this new and unusual product. As a way of contributing to the analysis of Hallyu exchanges globally, this paper presents an introduction of how television and dramas work in Argentina - departing from Argentina’s cultural heritage itself - with the aim of understanding the process and aftermath of K-dramas in Telefe, their effects on the Argentinian audience and TV market, and changes identified regarding the image of what is perceived as “Korean” locally.

The Effect of Intellectual Capital and Financial Services Knowledge on Financial Inclusion

Mar’a Elthaf ILAHIYAH,Noorlailie SOEWARNO,I Made Laut Mertha JAYA 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1

The study aims to determine the influence of intellectual capital and education on public financial services in increasing financial inclusion. This study applied a survey technique by selecting respondents according to the purposive sampling method. The number of respondents in this study was 500 people and came from various regions in Indonesia. Data analysis was performed using Structural Equation Modeling (SEM) techniques. The results indicate that intellectual capital has a positive effect on financial inclusion. Conversely, education about public financial services has no influence in increasing financial inclusion. The results of this study indicate that the success of financial inclusion programs in Indonesia is caused more by the role of public intellectual capital. Studies show that the public does not have the courage to be involved in banking institutions because the image of this institution tends to be inflexible in its operations. The results of this study are expected to make a real contribution, especially for the government and banks, that in order to achieve the success of the financial inclusion program in Indonesia; the related parties should educate the public directly to citizens who have not been reached by banking services continuously and with a more down to earth approach.

Functions attaining the supremum and isomorphic properties of a Banach space

Mar\'{\i}a D. Acosta,Julio Becerra Guerrero,Manuel Ruiz 대한수학회 2004 대한수학회지 Vol.41 No.1

We prove that a Banach space that is convex-transitive and such that for some element u in the unit sphere, and for every subspace M containing u, it happens that the subset of norm attaining functionals on M is second Baire category in M∗ is, in fact, almost-transitive and superreflexive. We also obtain a characterization of finite-dimensional spaces in terms of functions that attain their supremum: a Banach space is finite-dimensional if, for every equivalent norm, every rank-one operator attains its numerical radius. Finally, we describe the subset of norm attaining functionals on a space isomorphic to 1, where the norm is the restriction of a Luxembourg norm on L1. In fact, the subset of norm attaining functionals for this norm coincides with the subset of norm attaining functionals for the usual norm.