97 research outputs found
Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement
The phenomena of strong running coupling and hadron mass generating have been studied in the framework of a QCD-inspired relativistic model of quark-gluon interaction with infrared-confined propagators. We derived a meson mass equation and revealed a specific new behavior of the mass-dependent strong coupling α ^ s ( M ) defined in the time-like region. A new infrared freezing point α ^ s ( 0 ) = 1.03198 at origin has been found and it did not depend on the confinement scale Λ > 0 . Independent and new estimates on the scalar glueball mass, ‘radius’ and gluon condensate value have been performed. The spectrum of conventional mesons have been calculated by introducing a minimal set of parameters: the masses of constituent quarks and Λ . The obtained values are in good agreement with the latest experimental data with relative errors less than 1.8 percent. Accurate estimates of the leptonic decay constants of pseudoscalar and vector mesons have been performed
Post-Cesarean Sepsis Causes and Biomarkers
Objective: The determination of procalcitonin and lactate levels in the early diagnosis of sepsis is clinically significant and the higher the lactate level increases the greater the risk of mortality. In order to improve prevention and treatment of post-caesarean sepsis, in the present study we aimed to determine the serum biomarkers of Mongolian patients undergoing a cesarean section. Methods: Procalcitonin was determined by “E - 411” which is a fully automated analyzer and also by enzyme binding assay. Lactate, C-reactive protein, and lactate dehydrogenase was determined by “E - 411 only. Statistical analysis was performed by a SPSS - 20 software program, and statistics process by the chi-square test, Fisher test, and t-test. The confirmation rate was 95 % p < 0.05. Results: Women who gave childbirth in 2016 - 2020 and women who developed sepsis and who did not develop sepsis following C-section in the Clinical Maternity Hospital No.1 and in the Maternal and Child Health National Center were compared and studied. A total of 361 mothers were involved in the study. Conclusions: E. coli 29,4 %, intestinal bacteria 9,1 %, Staphylococcus epidermidis 8,9 %, Staphylococcus aureus 7,2 %, gram-negative bacteria 6,6 %, Streptococcus 5,3 %, gram-positive bacteria 2,8 %, Candida albicans 1,4 %, and Mycoplasma 1,1 % were responsible for bacteremia. Infection was caused by one bacterium in 141 cases (39,1 %), by two germs in 56 cases (15,5 %), by three microbes in 2 cases (0,6 %), and without any detection of bacteria in 162 cases (44,9 %)
The troika host-pathogen-extrinsic factors in tuberculosis: modulating inflammation and clinical outcomes
The Troika Host-Pathogen-Extrinsic Factors in Tuberculosis: Modulating Inflammation and Clinical OutcomesThe already enormous burden caused by tuberculosis (TB) will be further aggravated by the association of this disease with modern epidemics, as human immunodeficiency virus and diabetes. Furthermore, the increasingly aging population and the wider use of suppressive immune therapies hold the potential to enhance the incidence of TB. New preventive and therapeutic strategies based on recent advances on our understanding of TB are thus needed. In particular, understanding the intricate network of events modulating inflammation in TB will help to build more effective vaccines and host-directed therapies to stop TB. This review integrates the impact of host, pathogen, and extrinsic factors on inflammation and the almost scientifically unexplored complexity emerging from the interactions between these three factors. We highlight the exciting data showing a contribution of this troika for the clinical outcome of TB and the need of incorporating it when developing novel strategies to rewire the immune response in TB.HN-B acknowledges the receipt of research scholarships
from Bolsa D. Manuel de Mello and the Portuguese Society
for Pneumology. NO acknowledges FCT IF/00474/2014. SG
is funded by the European Research Council (grant number
309540-EVODRTB); the Swiss National Science Foundation
(grant number 310030_166687) SystemsX.ch. IC lab is financed
by Ministerio de Economía y Competitividad (Spanish
Government) research grant SAF2013-43521-R, SAF2016-
77346-R, and PROMETEO/2016/122 from Generalitat
Valenciana and the European Research Council (ERC)
(638553-TB-ACCELERATE). The MS lab is financed by
FEDER—Fundo Europeu de Desenvolvimento Regional funds
through the COMPETE 2020—Operacional Programme for
Competitiveness and Internationalisation (POCI), Portugal
2020, and by Portuguese funds through FCT in the framework
of the project “Institute for Research and Innovation in Health
Sciences” (POCI-01-0145-FEDER-007274). MS is an FCT
Principal Investigator. Some graphical elements in the figures
were designed by kjpargeter/Freepik. The funding agencies had
no role in the design of the manuscriptinfo:eu-repo/semantics/publishedVersio
Urban land use change study in Ulaanbaatar city using RS and GIS
In recent years, Ulaanbaatar, the capital of Mongolia, has experienced very rapid urbanization. Different reasons are considered for urban expansion, however, the main cause is connected with a mass movement of rural people seeking for improved living conditions. The aim of this study is to analyse changes in urban land use in the central part of the capital city using remote sensing (RS) and geographic information system (GIS) datasets. For the development of the principal digital spatial database, a 1:5000 scale topographic map and a historical description of the elements of land use were used. To update the database and extract reliable urban land use information, very high-resolution panchromatic and multispectral Quickbird images of 2023 were fused. For fusion, three different data fusion techniques such as a Brovey transform, Gramme-Schmidt method and intensity-hue-saturation (IHS) transformation were compared in terms of the enhancement of spatial and spectral variations of the available classes. Of these methods, the IHS transformation gave a superior result in terms of both spectral and spatial separations between different objects and classes. Therefore, for this technique was selected for further analysis. Overall, the research showed that the central part of Ulaanbaatar city became very dense and precise planning should be considered.
Улаанбаатарын хотын газар ашиглалтын өөрчлөлтийг зайнаас тандах судлал ба ГМС ашиглан судалсан дүн
Сүүлийн жилүүдэд Монгол улсын нийслэл Улаанбаатарт хотжилт маш хурдацтай нэмэгдэж байна. Хотжилт тэлэх олон шалтгаан бий боловч гол шалтгаан нь амьдралын нөхцөлийг сайжруулахыг эрэлхийлж буй хөдөөгийн иргэдийн шилжилт хөдөлгөөнтэй холбоотой юм. Энэхүү судалгааны зорилго нь зайнаас тандах судлал (ЗТС) болон газарзүйн мэдээллийн систем (ГМС)-ийн өгөгдлийг ашиглан нийслэлийн төв хэсгийн газар ашиглалтын өөрчлөлтөд дүн шинжилгээ хийх юм. 1:5000 масштабтай байр зүйн зураг болон газар ашиглалтын элементүүдийн түүхэн өгөгдлүүдээр орон зайн мэдээллийн санг бүрдүүлэн судалгаанд ашигласан болно. Мэдээллийн санг шинэчилж хотын газрын ашиглалтын бодит мэдээллийг гарган авахын тулд Quickbird дагуулын 2023 оны хэт өндөр нарийвчлалтай панхроматик болон олон бүсчлэлийн зургуудыг нэгтгэн ашиглалаа. Дүрс мэдээг нэгтгэхдээ ангиудын орон зайн болон спектрийн тодролыг сайжруулах үүднээс Бровейн шилжүүлэлт, Грамм-Шмидтийн арга ба өнгө-эрчим-ханалт (IHS) хувиргалтын аргуудыг ашиглан үр дүнгүүдийг харьцуулсан. Эдгээр аргуудаас IHS-ийн хувиргалтын үр дүн нь өөр өөр объект болох ангиуд хоорондын спектрийн болон орон зайн хувьд хамгийн сайн ялгаж байсан тул цаашдын дүн шинжилгээнд сонгосон. Энэхүү судалгааны үр дүн нь Улаанбаатар хотын төв хэсэг хэт их нягтшилтай, нарийн төлөвлөлт хийх шаардлагатай байгааг харууллаа.
Түлхүүр үгс: Хотын газар ашиглалт, Зайнаас тандан судлал, дүрс мэдээг нэгтгэх, өөрчлөлтийн судалг
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