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International Journal of Coal Science & Technology 2021年第4期8卷 562-574页

作者： Petr V.Nikolenko svetlana A.Epshtein Vladimir L.Shkuratnik Polina S.Anufrenkova Polina Scientific and Training Testing Laboratory of Physics and Chemistry of Coals National University of Science and Technology MISiSMoscowRussian Federation 119049 S.Anufrenkova1

Cyclic freezing-thawing can lead to fracture development in coal,affecting its mechanical and consumer *** study crack formations in coal,an ultrasonic sounding method using shear polarized waves was *** of three coal types(anthracite,lignite and hard coal)were *** research results show that,in contrast to the shear wave velocity,the shear wave amplitude is extremely sensitive to the formation of new cracks at the early stages of cyclic *** also show an inverse correlation between coal compressive strength and its tendency to form cracks under temperature impacts;shear wave attenuation increases more sharply in high-rank coals after the first freezing *** analysis of the received signals also confirmed significant crack formation in anthracite after the first freeze-thaw *** initial anisotropy was determined,and its decrease with an increase in the number of freeze-thaw cycles was *** data obtained forms an experimental basis for the development of new approaches to preserve coal consumer properties during storage and transportation under severe natural and climatic conditions.

关键词： Coal Cyclic freezing-thawing Ultrasonic Shear wave Fracture dynamics

HIF-la-mediated induction of autophagy by deferoxamine protects against rotenone-induced injury in SH-SY5Y cells

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HIF-la-mediated induction of autophagy by deferoxamine prote...

Cytomorphological and genetic indicators in the early ontogenesis of the wild and farmed broad whitefish(Coregonus nasus)

中华医学会第十三次全国神经病学学术会议

作者： Joseph jankovic Parkinson’s Disease Center and Movement Disorder Clinic Department of Neurology Baylor College of Medicine Houston 77030 TX USA

Hypoxia-inducible factor-1α(HIF-1α)is a transcription *** synthesis of HIF-1αcan be stimulated via oxygen(O)-independent mechanisms;whereas degradation is regulated

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Aquaculture and Fisheries 2023年第3期8卷 261-266页

作者： Aleksandr Selyukov Oksana Zhigileva Leonid Shuman svetlana Selyukova Vera Bogdanova Tyumen State University Institute of BiologyPirogov Street 3Tyumen625043Russia St.Petersburg Branch of the All-Russian Research Institute of Fisheries and Oceanography(St.Petersburg Branch of VNIRO) St.Petersburg199155Russia

The qualitative and quantitative composition of primordial germ cells(PGCs)and the genetic variability of embryos of the Coregonus nasus from the Ob river basin and domesticated population breeding outside the natural areal was *** the broad whitefish,typical,binuclear,polymorphic nuclei cells,as well as PGCs represented primary gonocytes during embryogenesis in *** hatching larvae PGCs mitoses were noted only in domesticated *** genetic variability of embryos of the broad whitefish was studied by polymerase chain reaction of inter simple sequence repeats(ISSR-PCR).The high polymorphism of the broad whitefish cultured population was *** proportion of polymorphic bands was 89.4%,Nei’s genetic diversity was *** of the domesticated broad whitefish did not affect the overall level of polymorphism of neutral DNA *** findings suggest the preservation of cytomorphological and genetic diversity in *** embryo from different sources.

关键词： Broad whitefish Domestic brood stock Wild population Embryogenesis Genetic polymorphism Primordial germ cells

Preclinical Biomarkers of Parkinson's disease

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Preclinical Biomarkers of Parkinson's disease

Giant pseudoaneurysm of the splenic artery within walled of pancreatic necrosis on the grounds of chronic pancreatitis

中华医学会第十三次全国神经病学学术会议

作者： Joseph jankovic Parkinson’s Disease Center and Movement Disorders Clinic Department of Neurology Baylor College of Medicine Houston TX USA 200080

The search for markers of preclinical Parkinson’ s disease(PD) is becoming increasingly important as pathogenesis-targeted neuroprotective strategies are being developed for future use in at-risk populations even bef...

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Hepatobiliary & Pancreatic Diseases International 2021年第1期20卷 87-89页

作者： Milica Mitrovic Jovanovic Dusan Saponjski Aleksandra Djuric Stefanovic Aleksandra jankovic Stefan Milosevic Katarina Stosic Djordje Knezevic Jelena Kovac Department of Abdominal Radiology Center for Radiology and MRIClinical Center of SerbiaBelgradeSerbia Faculty of Medicine University of BelgradeBelgradeSerbia Clinic for Digestive Surgery–First Surgical Clinic Clinical Center of SerbiaBelgradeSerbia

Chronic pancreatitis is a long-standing inflammation of the pancreas,characterized by progressive inflammatory and fibrotic changes,resulting in permanent structural damage of pancreatic parenchyma[1].Pancreatitis(chronic or acute)is the primary risk factor for pseudo-splenic artery aneurysms,along with pancreatic pseudocysts and *** the disease progresses,patients with chronic pancreatitis may develop complications due to exocrine and endocrine pancreatic functional loss,such as fat malabsorption with steatorrhea,glucose intolerance,and ultimately diabetes mellitus[1,2].Furthermore,severe pancreatic inflammation can cause weakening of vessel walls,with subsequent formation of arterial *** artery is the most commonly affected visceral artery[2,3].Liver cirrhosis,portal hypertension,liver transplantation,atherosclerosis,hypertension,pregnancy and multiparity are main risk factors for true splenic artery aneurysms[2].Rupture and intraperitoneal bleeding is the cause of death in 30%−50%of ***,prompt diagnosis and appropriate treatment are of great clinical importance[4,5].Herein,we present a case of a giant splenic artery pseudoaneurysm within a walled of necrosis involving pancreatic parenchyma,as a complication of long standing chronic pancreatitis.

关键词： pancreatitis aneurysm inflammation

A new species of the genus Theloderma Tschudi, 1838 (Amphibia： Anura： Rhacophoridae) from Tay Nguyen Plateau, central Vietnam

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Zoological Research 2018年第3期39卷 158-184页

作者： Nikolay A. Poyarkov Ivan I. Kropachev svetlana S. Gogoleva Nikolai L. Orlov Department of Vertebrate Zoology Biological Faculty Lomonosov Moscow State University Moscow 119234 Russia Joint Russian-Vietnamese Tropical Research and Technological Center Nghia Do Cau Giay Hanoi Vietnam Tula Exotarium Tula 300004 Russia A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences Moscow 119071 Russia Joint Russian-Vietnamese Tropical Research and Technological Center South Branch Ho Chi Minh City Vietnam Zoological Museum of the Lomonosov Moscow State University Moscow 125009 Russia Zoological Institute Russian Academy of Sciences St. Petersburg 199034 Russia

A new species of small tree frog from a primary montane tropical forest of central Vietnam, Tay Nguyen Plateau, is described based on morphological, molecular, and acoustic evidence. The Golden Bug-Eyed Frog, Theloderma auratum sp. nov., is distinguishable from its congeners and other small rhacophorid species based on a combination of the following morphological attributes：（1） bony ridges on head absent; （2） smooth skin completely lacking calcified warts or asperities; （3） pointed elongated tapering snout; （4） vocal opening in males absent; （5） vomerine teeth absent; （6） males of small body size （SVL 21.8-26.4 mm）; （7） head longer than wide; ED/SVL ratio 13%-15%; ESL/SVL ratio 16%-20%; （8） small tympanum （TD/EL ratio 50%-60%） with few tiny tubercles; （9） supratympanic fold absent; （10） ventral surfaces completely smooth; （11 ） webbing between fingers absent; （12） outer and inner metacarpal tubercles present, supernumerary metacarpal tubercle single, medial, oval in shape; （13） toes half-webbed： I 2-21/4 II 11/^-23/~ III 2-31/4 IV 3-11/2 V; （14） inner metatarsal tubercle present, oval; outer metatarsal tubercle absent; （15） iris bicolored; （16） dorsal surfaces golden-yellow with sparse golden-orange speckling or reticulations and few small dark-brown spots; （17） lateral sides of head and body with wide dark reddish-brown to black lateral stripes, clearlyseparated from lighter dorsal coloration by straight contrasting edge; （18） ventral surfaces of body, throat, and chest greyish-blue with indistinct brown confluent blotches; （19） upper eyelids with few （3-5） very small flat reddish superciliary tubercles; （20） limbs dorsally reddish-brown, ventrally brown with small bluish-white speckles. The new species is also distinct from all congeners in 12S rRNA to 16S rRNA mitochondrial DNA fragment sequences （uncorrected genetic distance P〉8.9%）. Advertisement call and tadpole morphology of the new species are described. Our molecular data showed Theloderma auratum sp. nov.

关键词： Theloderma auratum sp. nov. mtDNAphylogeny 12S rRNA 16S rRNA Kon Tum Gia Lai Endemism Taxonomy

On the Influence of High Pressures and Boron Nitride on the Processes of Structure Formation and Microhardness of a High-Entropy Equiatomic Composition AlNiCoFeCr Alloy

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Journal of Modern Physics 2023年第8期14卷 135-141页

作者： Menshikova svetlana The Udmurt Federal Research Center of the Ural Branch of RAS Izhevsk Russia

The structure of equiatomic high-entropy AlNiCoFeCr alloy obtained by arc melting was investigated. The influence of high pressures (5, 8 and 11 GPa), quenching temperature (1650?C) and small additions of reinforcing agent-boron nitride (10% of the alloy volume) on the microstructure and microhardness of the alloy after quenching was studied. Depending on the conditions of thermobaric action, structures based on solid solution of the B2 type or mixed phases with structures of the Al, A2 or B2 types are formed in the AlNiCoFeCr alloy, which influences the alloy microhardness that varies in the range of 5 - 12.5 GPa. .

关键词： Melt Pressure Microstructure Microhardness Phase

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Fluctuating fine-scale spatial genetic structure in the common shrews (Eulipotyphla, Mammalia)

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Integrative Zoology 2023年第3期18卷 469-492页

作者： Nikolay A.SHCHIPANOV Artem V.ARTAMONOV Sergey V.TITOV svetlana V.PAVLOVA A.N.Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscowRussia Department of Zoology and Ecology Penza State UniversityPenzaRussia

The spatial genetic structure is a topical issue in the studies of various aspects of ecology and *** the multilocus autocorrelation method with hypervariable microsatellite genetic markers,we investigated aﬁne-scale pattern of genetic structure in 5 local populations of the common shrew Sorex araneus separated by distances of 300–1000 m(the Moscow chromosomal race).Spatial genetic autocorrelation analysis based on 5 microsatellite loci(expected heterozygosity>0.79)with 90 alleles revealed a consistent pattern of signiﬁcant positive genetic *** testing the autocorrelation at multiple scales from 25 to 500 m,we found that positive spatial genetic structure is detectable in distance classes of<500 *** weaker spatial genetic structure positively correlated with a higher ratio of nonresident individuals to residents’activity(number of captures).In contrast to nonresident animals,the residents demonstrated prominent genetic *** difference(FST)between the populations was signiﬁcant(0.016–0.051)and comparable with that between populations of different races analyzed previously(0.016–0.038).FST was not associated with geographic *** demographic patterns allowed us to propose a scheme of genetic-structure dynamics involving periodic appearance of more related local groups and renewal of allelic proﬁles fromаcommon pool where the alleles are *** scheme predictsﬂuctuating genetic structure and random similar differences among local populations.

关键词： demographic pattern geneﬂow microsatellite spatial autocorrelation

Substrate-based galvanic replacement reactions carried out on heteroepitaxially formed silver templates

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Nano Research 2013年第6期6卷 418-428页

作者： Kyle D. Gilroy Pouyan Farzinpour Aarthi Sundar Teng Tan Robert A. Hughes svetlana Neretina College of Engineering Temple University Philadelphia 19122 USA Department of Physics Temple University Philadelphia 19122 USA

Galvanic replacement reactions have been widely used to transform solution dispersed silver template structures into intricate nanoshell geometries. Here, we report on the use of these same reactions to form hollow substrate-supported Au-Ag nanoshells from silver templates having a heteroepitaxial relationship with the underlying single crystal substrate. The structures obtained exhibit a nanohut geometry, show highly tunable plasmonic properties and are formed as periodic arrays using a lithography-free technique. When removed from the substrate the inverted nanohuts appear as nanobowls with a notch in the rim. The study lays the groundwork for wafer-based devices utilizing nanoshells located at site-specific locations.

关键词： galvanic replacement heteroepitaxy nanohut nanobowl semishell plasmon

NKCC1 and NKCC2:The pathogenetic role of cation-chloride cotransporters in hypertension

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Genes & Diseases 2015年第2期2卷 186-196页

作者： Sergei N.Orlov svetlana V.Koltsova Leonid V.Kapilevich svetlana V.Gusakova Nickolai O.Dulin Faculty of Biology M.V.Lomonosov Moscow State UniversityRussia Tomsk State University Russia Siberian State Medical University Russia University of Chicago Department of Medicine USA

This review summarizes the data on the functional significance of ubiquitous(NKCC1)and renal-specific(NKCC2)isoforms of electroneutral sodium,potassium and chloride *** carriers contribute to the pathogenesis of hypertension via regulation of intracellular chloride concentration in vascular smooth muscle and neuronal cells and via sensing chloride concentration in the renal tubular fluid,*** NKCC1 and NKCC2 are inhibited by furosemide and other high-ceiling diuretics widely used for attenuation of extracellular fluid ***,the chronic usage of these compounds for the treatment of hypertension and other volume-expanded disorders may have diverse side-effects due to suppression of myogenic response in microcirculatory beds.

关键词： Hypertension Intracellular chloride Myogenic tone Neuronal cell NKCC cotransport Smooth muscle