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High-permeance crosslinked PTMsP thin-film composite membranes as supports for CO_2 selective layer formation

Green Energy & Environment 2016年第3期1卷 235-245页

作者： stepan D.Bazhenov Ilya L.Borisov danila s.bakhtin Anastasia N.Rybakova Valery s.Khotimskiy sergey P.Molchanov Vladimir V.Volkov A.V.Topchiev Institute of Petrochemical synthesis RAS

In the development of the composite gas separation membranes for post-combustion CO_2 capture, little attention is focused on the optimization of the membrane supports, which satisfy the conditions of this technology. The primary requirements to the membrane supports are concerned with their high CO_2 permeance. In this work, the membrane supports with desired characteristics were developed as high-permeance gas separation thin film composite(TFC) membranes with the thin defect-free layer from the crosslinked highly permeable polymer, poly[1-(trimethylsilyl)-1-propyne](PTMsP). This layer is insoluble in chloroform and can be used as a gutter layer for the further deposition of the CO_2-selective materials from the organic solvents. Crosslinking of PTMsP was performed using polyethyleneimine(PEI) and poly(ethyleneglycol) diglycidyl ether(PEGDGE) as crosslinking agents. Optimal concentrations of PEI in PTMsP and PEGDGE in methanol were selected in order to diminish the undesirable effect on the final membrane gas transport characteristics. The conditions of the kiss-coating technique for the deposition of the thin defect-free PTMsP-based layer, namely, composition of the casting solution and the speed of movement of the porous commercial microfiltration-grade support, were optimized. The procedure of post-treatment with alcohols and alcohol solutions was shown to be crucial for the improvement of gas permeance of the membranes with the crosslinked PTMsP layer having thickness ranging within 1-2.5 μm. The claimed membranes showed the following characteristics: CO_2 permeance is equal to 50—54 m^3(sTP)/(m^2 h bar)(18,500—20,000 GPU), ideal CO_2/N_2 selectivity is 3.6-3.7, and their selective layers are insoluble in chloroform. Thus, the developed highpermeance TFC membranes are considered as a promising supports for further modification by enhanced CO_2 selective layer formation.

关键词： Thin-film composite membrane Gas permeance PTMsP Crosslinking Carbon dioxide capture

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Pronormality and submaximal X-subgroups on Finite Groups Dedicated to celebrate the sixtieth anniversary of UsTC

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Communications in Mathematics and statistics 2018年第3期6卷 289-317页

作者： Wenbin Guo danila O.Revin school of Mathematical sciences University of Science and Technology of ChinaHefei 230026People’s Republic of China sobolev Institute of Mathematics sB RAs NovosibirskRussia Novosibirsk state University NovosibirskRussia 630090

According to Hall,a subgroup H of a group G is said to be pronormal if H and H^(g) are conjugate infor every g∈*** this survey,we discuss the role of pronormality for some subgroups of finite groups:Hall subgroups,su... 详细信息

关键词： Pronormal subgroup Hallπ-subgroup submaximal X-subgroup subgroup of odd index

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Conservative management of an early abdominal complication during a Tullio percutaneous endoscopic excision of renal pelvis urothelial carcinoma:A case report

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World Journal of Clinical Urology 2024年第1期13卷 1-6页

作者： Massimiliano Bernabei NicolòFabbri danila Romeo Elisa Paiolo Martina Bandi Maurizio simone Department of Urology Azienda USL di FerraraFerrara 44100Italy Department of surgery University of FerraraAzienda USL of FerraraAzienda USL of FerraraFerrara 44100FerraraItaly Local Health Agency of Ferrara Ferrara 44100Italy

BACKGROUND Upper tract urothelial carcinoma(UTUC)representing only a small fraction of all urothelial *** predominantly affects the renal pelvis in men,often coexisting with bladder *** displays a more aggressive genetic profile compared to bladder neoplasms,with the majority of patients presenting with advanced ***,about a quarter of UTUC cases exhibit high-grade subtypes,associated with a worse *** use and past exposure to aromatic amines are significant risk factors for *** modalities such as Uro-computed tomography and magnetic resonance imaging play crucial roles in *** is vital for direct visualization and biopsy sampling,but its limited sampling capacity presents challenges in determining tumor depth and ***,nephroureterectomy with bladder cuff excision has been the gold-standard treatment for *** conservative treatment has recently emerged as a viable option for selected patients,offering comparable oncological outcomes to radical *** access is also feasible for larger intrarenal *** sUMMARY We present a case of an 84-year-old woman who underwent percutaneous endoscopic excision of a renal pelvis neoplasm using the Tullio *** successful tumor removal,the patient experienced a postoperative complication with abdominal fluid *** management effectively resolved the *** the patient's age and refusal for radical surgery,the conservative approach proved to be a valid therapeutic *** Overall,UTUC remains a diagnostic and therapeutic challenge due to its ***,advances in endoscopic and percutaneous techniques provide valuable alternatives for selected patients,warranting further exploration in this evolving field.

关键词： Upper tract urothelial carcinoma Endoscopic treatment Damage management Case report

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The RhoA nuclear localization changes in replicative senescence:New evidence from in vitro human mesenchymal stem cells studies

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BIOCELL 2022年第9期46卷 2053-2058页

作者： danila BOBKOV ANAsTAsIA POLYANsKAYA ANAsTAsIA MUsORINA GALINA POLJANsKAYA Collection of Vertebrate Cell Cultures Institute of CytologyRussian Academy of SciencesSt.Petersburg194064Russia Laboratory of Intracellular signaling and Transport Smorodintsev Research Institute of InfluenzaSt.Petersburg197376Russia Research Laboratory of Translational Oncology Almazov National Research CentreSt.Petersburg197341Russia

All non-immortalized mesenchymal stem cells have a limited proliferative potential,that is,replicative senescence(Rs)is an integral characteristic of the life of all mesenchymal stem cells(MsCs).It is known that one of the important signs of Rs is a decrease of cell motility,and that violations of migration processes contribute to the deterioration of tissue ***,the characterization of the properties of the cell line associated with Rs is a prerequisite for the effective use of MsCs in restorative *** of the key proteins regulating cell motility is the small GTPase *** main purpose of this work was to study the nuclear-cytoplasmic redistribution of the RhoA protein during Rs in MsC lines recently obtained and characterized in our *** study found that a comparative analysis of the intracellular localization of RhoA in three cell lines(MsCWJ-1,FetMsC,DF2)showed a decrease in the nuclear localization of RhoA during Rs.

关键词： Mesenchymal stem cells RhoA Actin cytoskeleton Replicative senescence

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Artificial Intelligence Impact on Unemployment in China

Artificial Intelligence Impact on Unemployment in China

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作者： Voronezhtsev danila 浙江工商大学

学位级别：硕士

Problem Artificial Intelligence nowadays largely implemented in our daily *** variety of different industries and big companies use AI solutions for various business tasks continuingly *** the last decade,Artificial Intelligence development not only did not stop,but conversely it accelerated with tremendous *** this technology is taking over the world,it is important for scholars,chief executives,government workers and researchers deeply inquire into this *** all share the same concern that Artificial Intelligence revolution will cause a vast worldwide *** is a gap in understanding of these going processes that will be the area of study for this *** This research is keen to demonstrate negative effects of AI implications on employment ***’s expected to see that every change in amount of Artificial patents will affect employment rates in negative *** of high levels of uncertainty on such object as AI this research also proposes null hypothesis that is not laying any correlation on given *** Design This research is contained of bibliographical research,developing theoretical framework and econometric *** This dissertation has sought to understand whether current technological anxiety concerning artificial intelligence is justified,specifically investigating whether ‘’people will lose their jobs because of AI’’.Using China as a research object and dataset of three industrial sectors utilizing GMM-system estimators,it evaluated the impact of artificial intelligence development on *** paper proposed that there is strong relationship between specific kind of technological progress and employment,it argues that it is a highly relevant topic,essential to understanding the declining size of the middle classes and the future outlook of our societies,with this thesis seeking to fill some of the gaps in the *** has sought to do so by approaching the impact of

关键词： Artificial Intelligence unemployment patents healthcare retail and services finance

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sediment transport in headwaters of a volcanic catchment Kamchatka Peninsula case study

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Frontiers of Earth science 2017年第3期11卷 565-578页

作者： sergey R. CHALOV Anatolii s. TsYPLENKOV Jan PIETRON Aleksandra s. CHALOVA danila I. sHKOLNYI Jerker JARsJO Michael MAERKER Faculty of Geography M. V. Lomonosov Moscow State University Moscow 119911 Russia Department of Physical Geography and the Bolin Centre for Climate Research Stockholm University Stockholm 10691 Sweden Department of Earth and Environmental sciences Pavia University Pavia 27100 Italy

Due to specific environmental conditions, headwater catchments located on volcanic slopes and valleys are characterized by distinctive hydrology and sediment transport patterns. However, lack of sufficient monitoring causes that the governing processes and patterns in these areas are rarely well understood. In this study, spatiotemporal water discharge and sediment transport from upstream sources was investigated in one of the numerous headwater catchments located in the lahar valleys of the Kamchatka Peninsula sukhaya Elizovskaya River near Avachinskii and Koryakskii volcanoes. Three different subcatchments and corresponding channel types （wandering rivers within lahar valleys, mountain rivers within volcanic slopes and rivers within submountain terrains） were identified in the studied area. Our measure- ments from different periods of observations between years 2012-2014 showed that the studied catchment was characterized by extreme diurnal fluctuation of water discharges and sediment loads that were influenced by snowmelt patterns and high infiltration rates of the easily erodible lahar deposits. The highest recorded sediment loads were up to 9-104 mg/L which was related to an increase of two orders of magnitude within a one day of observations. Additionally, to get a quantitative estimate of the spatial distribution of the eroded material in the volcanic substrates we applied an empirical soil erosion and sediment yield model - modified universal soil loss equation （MUsLE）. The modeling results showed that even if the applications of the universal erosion model to different non-agricultural areas （e.g., volcanic catchments） can lead to irrelevant results, the MUsLE model delivered might be acceptable for non-lahar areas of the studied volcanic catchment. Overall the results of our studyincrease our understanding of the hydrology and asso- ciated sediment transport for prediction of risk manage- ment within headwater volcanic catchments.

关键词： sediment transport volcanoes lahars Kam-chatka Peninsula MUsLE erosion

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On Prime spectrum of Maximal subgroups in Finite Groups

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Algebra Colloquium 2018年第4期25卷 579-584页

作者： Chi Zhang Wenbin Guo Natalia V.Maslova danila O.Revin Department of Mathematics University of Science and Technology of ChinaHefei 230026China Krasovskii Institute of Mathematics and Mechanics UB RAs and Ural Federal University Yekaterinburg 620990Russia sobolev Institute of Mathematics SB RAS and Novosibirsk State University Novosibirsk 630090Russia

For a positive integer n,we denote byπ(n)the set of all prime divisors of *** a finite group G,the setπ(G):=π(|G|)is called the prime spectrum of *** Ms a maximal subgroup of *** put K(G)=max{|π(G)\π(M)|:Ms notice,using well-known number-theoretical results,we present a number of examples to show that both K(G)and k(G)are unbounded in *** implies that the problem"Are k(G)and K(G)bounded by some constant k?",raised by Monakhov and skiba in 2016,is solved in the negative.

关键词： finite group finite simple group prime spectrum maximal subgroup

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Effect of infliximab on small bowel stenoses in patients with Crohn's disease

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World Journal of Gastroenterology 2008年第12期14卷 1885-1890页

作者： Nadia Pallotta Fausto Barberani Naima Abdulkadir Hassan danila Guagnozzi Giuseppina Vincoli Enrico Corazziari Department of Clinical science University of Rome Sapienza Rome COU Gastroenterology s. Camillo De Lellis Hospital Rieti Rome 00168 Italy

AIM: To assess prospectively small bowel stenoses in Crohn's disease (CD) patients treated with infliximab using small Intestine Contrast Ultrasonography (sICUs). METHODs: Twenty patients (M 12, age, 42.7 ± 11.8 years), 15 of whom showed obstructive symptoms indicating the presence of small bowel stenosis, and 5 without stenosis, were treated with infliximab (5 mg/kg at wk 0, 2, 6 and 5 mg/kg every 8 wk thereafter) for steroid refractoriness, fistulizing disease, or to avoid high-risk surgery. sICUs was performed at the induction phase and at regular time intervals during the follow-up period of 34.7 ± 16.1 mo (range 7-58). small bowel stenoses were detected by sICUs, endoscopy and MRI. REsULTs: In no case was progression of stenoses or the appearance of new ones seen. Of the 15 patients with stenosis, 5 stopped treatment after the induction phase (2 for no response, 3 for drug intolerance, one of whom showed complete regression of one stenosis). Among the remaining 10 patients, a complete regression of 8 stenoses (1 stenosis in 5 patients and 3 stenoses in one patient) was observed after 6-22 infliximab infusions. CONCLUsION: In patients with CD treated with infliximab we observed: (a) No progression of small bowel stenosis and no appearance of new ones, (b) Complete regression of 1/22 stenosis after the induction phase and of 8/15 (53.3%) stenosis after 6-22 infusionsduring maintenance therapy.

关键词： Crohn's disease Infliximab Intestinalstenosis

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Is it better to use two elastographic methods for liver fibrosis assessment?

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World Journal of Gastroenterology 2011年第33期17卷 3824-3829页

作者： Ioan sporea Roxana sirli Alina Popescu simona Bota Radu Badea Monica Lupsor Mircea Focsa Mirela danila Department of Gastroenterology and Hepatology University of Medicine and Pharmacy Timisoara10 Iosif Bulbuca Bv.300736 TimisoaraRomania Department of Medical Imaging 3rd Medical ClinicUniversity of Medicine and PharmacyClujNapoca2123 Croitorilor str.400162 ClujNapocaRomania Department of Biophysics and Medical Informatics University of Medicine and Pharmacy Timisoara14 Tudor Vladimirescu str.300173 TimisoaraRomania

AIM:To find out if by combining 2 ultrasound based elastographic methods:acoustic radiation force impulse(ARFI)elastography and transient elastography(TE),we can improve the prediction of fibrosis in patients with chronic hepatitis ***:Our study included 197 patients with chronic hepatitis *** each patient,we performed,in the same session,liver stiffness(Ls)measurements by means of TE and ARFI,respectively,and liver biopsy(LB),assessed according to the Metavir score.10 Ls measurements were performed both by TE and ARFI;median values were calculated and expressed in kilopascals(kPa)and meters/second(m/s),*** TE and ARFI measurements with IQRsR≥60%were considered ***:On LB 13(6.6%)patients had F0,32(16.2%) had F1,52(26.4%)had F2,47(23.9%)had F3,and 53(26.9%)had F4.A direct,strong correlation was found between TE measurements and fibrosis(r=0.741),between ARFI and fibrosis(r=0.730)and also between TE and ARFI(r=0.675).For predicting significant fibrosis(F≥2),for a cutoff of 6.7 kPa,TE had 77.5% sensitivity(se)and 86.5%specificity(sp)[area under the receiver operating characteristic curve(AUROC)0.87] and for a cutoff of 1.2 m/s,ARFI had 76.9%se and 86.7%sp(AUROC 0.84).For predicting cirrhosis(F=4),for a cutoff of 12.2 kPa,TE had 96.2%se and 89.6% sp(AUROC 0.97)and for a cutoff of 1.8 m/s,ARFI had 90.4%se and 85.6%sp(AUROC 0.91).When both elastographic methods were taken into consideration,for predicting significant fibrosis(F≥2),(TE≥6.7 kPa and ARFI≥1.2 m/s)we obtained 60.5%se,93.3% sp,96.8%positive predictive value(PPV),41.4%negative predictive value(NPV)and 68%accuracy,while for predicting cirrhosis(TE≥12.2 kPa and ARFI≥1.8 m/s) we obtained 84.9%se,94.4%sp,84.9%PPV,94.4% NPV and 91.8%***:TE used in combination with ARFI is highly specific for predicting significant fibrosis;therefore when the two methods are concordant,liver biopsy can be avoided.

关键词： Transient elastography Acoustic radiation force impulse elastography Liver stiffness Combined methods

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Circulating adhesion molecules in patients with virus-related chronic diseases of the liver

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World Journal of Gastroenterology 2005年第29期11卷 4566-4569页

作者： Cosimo Marcello Bruno Claudio sciacca danila Cilio Gaetano Bertino Anna Elisa Marchese Gaetana Politi Lucia Chinnici Department of Internal Medicine and systemic Diseases University of Catania Italy Lucia Chinnici Clinical Laboratory Analysis S. Bambino Hospital Catania Italy

AIM: In the inflammatory state, intercellular adhesion molecule-1 (ICAM-1) and vascular cellular adhesion molecule-1 (VCAM-1) play a key role in promoting migration of immunological cells from the circulation to target *** of our study was to investigate soluble forms of these molecules in patients with virus-related chronic liver diseases, to assess their behavior in different pathologies and correlation with severity of liver ***: Circulating ICAM-1 and VCAM-1 were assayed by EIA commercial kits (R&D system Co.,Abington, UK) in 23 patients with chronic active hepatitis (CH), 50 subjects affected by liver cirrhosis (LC) and 15 healthy controls comparable for sex and age. In patients, serum alanine aminotransferase (ALT) and aspartate aminotransferase (AsT) were also detected by ***: LC patients had significantly higher ICAM-1 values than CH patients (38.56±7.4 ng/mL vs 20.89±6.42 ng/mL; P＜0.001) and these ones had significantly higher values than controls (12.92±1.08 ng/mL; P＜0.001). In CH group, ICAM-1 levels were significantly related to inflammatory activity (P= 0.041) and ALT values (r= 0.77;P＜0.05). VCAM-1 values were significantly increased only in LC patients (P＜0.001) and related to severity of liver ***: These findings suggest that the determination of serum ICAM-1 can be considered as an additional useful marker of hepatocellular necrosis and inflammatory activity in chronic hepatitis, while serum VCAM-1 is an indicator of liver fibrogenesis and severity of disease in cirrhosis.

关键词： ICAM-1 VCAM-1 Chronic liver diseases Hepatocellular necrosis Liver fibrosis

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