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Book ; Online: STIR

Shabanov, Aleksei / Tarasov, Aleksei / Nikolenko, Sergey

Siamese Transformer for Image Retrieval Postprocessing

2023

Abstract: Current metric learning approaches for image retrieval are usually based on learning a space of informative latent representations where simple approaches such as the cosine distance will work well. Recent state of the art methods such as HypViT move to ... ...

Abstract	Current metric learning approaches for image retrieval are usually based on learning a space of informative latent representations where simple approaches such as the cosine distance will work well. Recent state of the art methods such as HypViT move to more complex embedding spaces that may yield better results but are harder to scale to production environments. In this work, we first construct a simpler model based on triplet loss with hard negatives mining that performs at the state of the art level but does not have these drawbacks. Second, we introduce a novel approach for image retrieval postprocessing called Siamese Transformer for Image Retrieval (STIR) that reranks several top outputs in a single forward pass. Unlike previously proposed Reranking Transformers, STIR does not rely on global/local feature extraction and directly compares a query image and a retrieved candidate on pixel level with the usage of attention mechanism. The resulting approach defines a new state of the art on standard image retrieval datasets: Stanford Online Products and DeepFashion In-shop. We also release the source code at https://github.com/OML-Team/open-metric-learning/tree/main/pipelines/postprocessing/ and an interactive demo of our approach at https://dapladoc-oml-postprocessing-demo-srcappmain-pfh2g0.streamlit.app/ Comment: 14 pages, 3 figures
Keywords	Computer Science - Information Retrieval ; Computer Science - Computer Vision and Pattern Recognition ; H.3.3
Subject code	006 ; 004
Publishing date	2023-04-26
Publishing country	us
Document type	Book ; Online
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Article ; Online: Composite Polymer Granules Based on Poly-ε-Caprolactone and Montmorillonite Prepared by Solution-Casting and Melt Extrusion.

Sukhanova, Anna / Boyandin, Anatoly / Ertiletskaya, Natalya / Shalygina, Taisia / Shabanov, Alexander / Vasiliev, Alexander / Obvertkin, Ivan / Brott, Valeria / Prokopchuk, Yulia / Samoilo, Alexander

Polymers

2023 Volume 15, Issue 20

Abstract: Eco-friendly polymer composites in the form of granules based on biodegradable polycaprolactone (PCL) with the inclusion of montmorillonite (MMT) from 5 to 50 wt% were prepared by solution-casting and melt extrusion. The physicochemical properties of the ...

Abstract	Eco-friendly polymer composites in the form of granules based on biodegradable polycaprolactone (PCL) with the inclusion of montmorillonite (MMT) from 5 to 50 wt% were prepared by solution-casting and melt extrusion. The physicochemical properties of the composite granules were studied using FTIR spectroscopy, XRDA, DSC, and TGA methods. The paper presents comparative values of crystallinity of composite granules which depend on the method of measuring (XRDA, DSC). It was shown that the crystallinity of PCL/MMT granules was affected by the preparation method and by the MMT content, and that with increase in MMT content, crystallinity increased by up to 61-67%. The change in crystallinity of the granules also affected its biodegradation in soil. At the end of exposure in soil, the mass loss for the granules prepared by solution-casting was more than 90%, whereas for the composite granules prepared by extrusion it was less than 60%. Applying melt extrusion enabled obtaining intercalated composites with predictable features, whereas only mixed-structure microcomposites could be prepared by solution-casting.
Language	English
Publishing date	2023-10-16
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym15204099
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Article ; Online: Novel prognostic determinants of COVID-19-related mortality: A pilot study on severely-ill patients in Russia.

Rubina, Kseniya / Shmakova, Anna / Shabanov, Aslan / Andreev, Yulii / Borovkova, Natalia / Kulabukhov, Vladimir / Evseev, Anatoliy / Popugaev, Konstantin / Petrikov, Sergey / Semina, Ekaterina

PloS one

2022 Volume 17, Issue 2, Page(s) e0264072

Abstract: COVID-19 pandemic has posed a severe healthcare challenge calling for an integrated approach in determining the clues for early non-invasive diagnostics of the potentially severe cases and efficient patient stratification. Here we analyze the clinical, ... ...

Abstract	COVID-19 pandemic has posed a severe healthcare challenge calling for an integrated approach in determining the clues for early non-invasive diagnostics of the potentially severe cases and efficient patient stratification. Here we analyze the clinical, laboratory and CT scan characteristics associated with high risk of COVID-19-related death outcome in the cohort of severely-ill patients in Russia. The data obtained reveal that elevated dead lymphocyte counts, decreased early apoptotic lymphocytes, decreased CD14+/HLA-Dr+ monocytes, increased expression of JNK in PBMCs, elevated IL-17 and decreased PAI-1 serum levels are associated with a high risk of COVID-19-related mortality thus suggesting them to be new prognostic factors. This set of determinants could be used as early predictors of potentially severe course of COVID-19 for trials of prevention or timely treatment.
MeSH term(s)	Adolescent ; Adult ; Aged ; Aged, 80 and over ; COVID-19/blood ; COVID-19/mortality ; Female ; Humans ; Interleukin-17/blood ; Lymphocyte Count ; Male ; Middle Aged ; Pandemics ; Pilot Projects ; Plasminogen Activator Inhibitor 1/blood ; Prognosis ; Russia/epidemiology ; Young Adult
Chemical Substances	Interleukin-17 ; Plasminogen Activator Inhibitor 1
Language	English
Publishing date	2022-02-25
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0264072
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Article: Sarcoidosis imitating breast cancer metastasis: a case report and literature review.

Kochoyan, Teimuraz / Akhmedov, Mobil / Shabanov, Alexander / Terekhov, Ilya

Cancer biology & medicine

2016 Volume 13, Issue 3, Page(s) 396–398

Abstract: Sarcoidosis is a benign systematic granulomatous disorder of unknown etiology and is associated with various malignancies. However, granulomatous and metastatic lymph node lesions are difficult to distinguish even when using precise and modern diagnostic ...

Abstract	Sarcoidosis is a benign systematic granulomatous disorder of unknown etiology and is associated with various malignancies. However, granulomatous and metastatic lymph node lesions are difficult to distinguish even when using precise and modern diagnostic methods, such as positron emission tomography. Thus, histological verification is the only method that can be used to accurately describe the nature of this disease. In this article, we report a case of non-luminal HER-2/neu-positive breast cancer in a patient without history of sarcoidosis and suspected to have metastatic disease.
Language	English
Publishing date	2016-10-11
Publishing country	China
Document type	Journal Article
ZDB-ID	2676322-9
ISSN	2095-3941
ISSN	2095-3941
DOI	10.20892/j.issn.2095-3941.2016.0038
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Article ; Online: Poly-3-hydroxybutyrate/chitosan composite films and nonwoven mats.

Sukhanova, A A / Murzova, A E / Boyandin, A N / Kiselev, E G / Sukovatyi, A G / Kuzmin, A P / Shabanov, A V

International journal of biological macromolecules

2020 Volume 165, Issue Pt B, Page(s) 2947–2956

Abstract: Composite films and nonwoven mats of the poly-3-hydroxybutyrate and chitosan natural polymers were prepared and investigated. DSC and FTIR techniques were used to confirm that P(3HB) blending with chitosan resulted in a decrease in P(3HB) crystallinity ... ...

Abstract	Composite films and nonwoven mats of the poly-3-hydroxybutyrate and chitosan natural polymers were prepared and investigated. DSC and FTIR techniques were used to confirm that P(3HB) blending with chitosan resulted in a decrease in P(3HB) crystallinity to 47% and 62% in the films and nonwoven mats, respectively. Scanning electron microscopy showed that addition of chitosan induced changes in the surface morphology of the composite films and a reduction in the diameter of ultrafine fibers in the nonwoven mats from 800 nm to 460 nm. The values of water contact angle for films (53°) and nonwoven mats (50.6°) suggested that chitosan enhanced hydrophilic properties and moisture absorption capacity of the composite materials. On the other hand, P(3HB) showed its reinforcing ability and improved the physical/mechanical properties of chitosan. The work included studies of in vitro biodegradation of the composite specimens and their ability to maintain cell growth and attachment in NIH 3T3 fibroblast culture.
MeSH term(s)	Animals ; Biocompatible Materials/chemistry ; Biocompatible Materials/pharmacology ; Cell Proliferation/drug effects ; Chitosan/chemistry ; Chitosan/pharmacology ; Fibroblasts/drug effects ; Hydrophobic and Hydrophilic Interactions/drug effects ; Hydroxybutyrates/chemistry ; Hydroxybutyrates/pharmacology ; Mice ; NIH 3T3 Cells ; Polyesters/chemistry ; Polyesters/pharmacology ; Polymers/chemistry ; Polymers/pharmacology ; Surface Properties ; Tensile Strength ; Tissue Engineering ; Tissue Scaffolds/chemistry
Chemical Substances	Biocompatible Materials ; Hydroxybutyrates ; Polyesters ; Polymers ; poly-beta-hydroxybutyrate (26063-00-3) ; Chitosan (9012-76-4)
Language	English
Publishing date	2020-10-25
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2020.10.177
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Article: The Effect of Microbial Preparations on Biological Activity of the Soil and Yielding Ability and Quality of Potato

Zhevora, S. V / Fedotova, L. S / Timoshina, N. A / Knyazeva, E. V / Shabanov, A. E

Russian agricultural sciences. 2019 Sept., v. 45, no. 5

2019

Abstract: The effectiveness of microbial preparations against the background of various doses of mineral fertilizers and without them was studied in two short-term experiments from 2015 to 2018. The goal of the present study was to increase the productivity and ... ...

Abstract	The effectiveness of microbial preparations against the background of various doses of mineral fertilizers and without them was studied in two short-term experiments from 2015 to 2018. The goal of the present study was to increase the productivity and quality of potatoes by using full and reduced (by 30 and 50%) doses of mineral fertilizers in combination with various microbial preparations due to the biological activity of sod-podzolic sandy loam soil and better digestibility of nutrients. In the field test of 2015–2016, when using mineral fertilizers (N₄₅–₉₀P₄₅–₉₀K₆₀–₁₂₀), the potato yield was 24.1–27.9 t/ha; the combination of N₄₅P₄₅K₆₀ with preplant treatment of tubers using microbiological preparations Azolen, Agrinos 1, and Biocomposite-correct increased the yield by 27.6–28.5%, while biopreparations made it possible to increase the yield by 3.5–4.4 t/ha or 14.5–18.3%. In the field experiment (2016 and 2017–2018), the maximum potato yield (34.0–35.7 t/ha) was obtained using the Extrasol microbiological preparation both separately for preplant treatment of tubers and in combination with foliar spraying of Agrinos 2 and Extrasol against the background of a full dose of fertilizers (N₉₀P₉₀K₉₀), while the increase caused by the biological component of the nutrition system was 6.5–8.2 t/ha or 23.6–29.8%. In the experiment with an NPK dose reduced by 30% in combination with Agrinos (N₆₀P₆₀K₆₀ + Agrinos 1 + 2 (5 + 2.5 L/ha)), the yield level was 4.6 t/ha (17%) higher than that obtained with a full dose of NPK.
Keywords	bioactive properties ; biological production ; crop yield ; digestibility ; field experimentation ; foliar spraying ; mineral fertilizers ; nutrients ; nutrition ; potatoes ; sandy loam soils ; tubers
Language	English
Dates of publication	2019-09
Size	p. 443-448.
Publishing place	Pleiades Publishing
Document type	Article
ISSN	1068-3674
DOI	10.3103/S1068367419050203
Database	NAL-Catalogue (AGRICOLA)

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Article: Vasilii Ivanovich Razumovskii: k stoletiiu so dnia rozhdeniia.

SHABANOV, A N

Sovetskaia meditsina

2003 Volume 21, Issue 4, Page(s) 131–135

Title translation	Vasilii Ivanovich Razumovskii; 100th anniversary.
MeSH term(s)	Anniversaries and Special Events ; History, 19th Century ; History, 20th Century
Language	Russian
Publishing date	2003-09-15
Publishing country	Russia (Federation)
Document type	Biography ; Historical Article ; Journal Article
ZDB-ID	128565-8
ISSN	0038-5077
ISSN	0038-5077
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Article: [CRITERIA OF HIGH RISK INFECTION PULMONARY COMPLICATIONS IN SEVERE POLYTRAUMA PATIENTS].

Shabanov, A K / Bulava, G V / Kisluchina, E V / Khubutia, M Sh

Anesteziologiia i reanimatologiia

2015 Volume 60, Issue 2, Page(s) 16–20

Abstract: Purpose: To identify high risk groups for infectious pulmonary complications (IPC) in patients with severe polytrauma, depending on the severity of the damage and the volume of acute blood loss in intensive care units in the early stages of the injury.!# ...

Abstract	Purpose: To identify high risk groups for infectious pulmonary complications (IPC) in patients with severe polytrauma, depending on the severity of the damage and the volume of acute blood loss in intensive care units in the early stages of the injury. Material and methods: We studied 410 patients with severe polytrauma and IPC. Severity of injury was calculated according to ISS scale. ROC-curve was made in order to assess the prognostic significance of the impact of the severity of injury and the volume of acute blood loss on the development of IPC. Results: To evaluate the effect of injury severity on the incidence of IPC, patients were divided into 2 groups: I--185 (ISS < 30) and group II--225 (ISS ≥ 30). In group I, prolonged mechanical ventilation was required in 4 patients (2.2%), pneumonia occurred in 9 patients (4.9%), no one died In group II--prolonged mechanical ventilation was performed in 120 (47.6%), pneumonia occurred in 158 (70.2%), sepsis--in 14 (6.2%), 37 (16.4%) patients died. Depending on the volume of blood loss into two groups: I group--179 patients (blood loss < 2000 ml) and group II--231 (blood loss ≥ 2000 ml). Prolonged mechanical ventilation was required 14 (7.6%) patients in group I and at 110 (47.6%)--II group, pneumonia developed in 14 (7.6%) and 153 (66.2%), respectively. Sepsis was developed in 14 patients of group II, whereas in patients of group I it was not registered also differed the number of deaths in the early period: in group 14 (2.2%) patients died, in II--33 (14.3%). Conclusions: Comparative statistical analysis revealed important criteriafor the prognosis of the IPC in patients with severe polytrauma: the severity of damage on a ISS ≥ 30 points and the volume of acute blood loss ≥ 2000 ml.
MeSH term(s)	Adult ; Cross Infection/diagnosis ; Cross Infection/etiology ; Cross Infection/mortality ; Data Interpretation, Statistical ; Female ; Humans ; Male ; Multiple Trauma/complications ; Multiple Trauma/diagnosis ; Multiple Trauma/mortality ; Pneumonia, Bacterial/diagnosis ; Pneumonia, Bacterial/etiology ; Pneumonia, Bacterial/mortality ; Prognosis ; Risk ; Sepsis/diagnosis ; Sepsis/etiology ; Sepsis/mortality ; Shock, Hemorrhagic/complications ; Shock, Hemorrhagic/diagnosis ; Shock, Hemorrhagic/mortality ; Trauma Severity Indices
Language	Russian
Publishing date	2015-03
Publishing country	Russia (Federation)
Document type	English Abstract ; Journal Article
ZDB-ID	754946-5
ISSN	0201-7563
ISSN	0201-7563
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Book ; Online: Self-supervised Depth Denoising Using Lower- and Higher-quality RGB-D sensors

Shabanov, Akhmedkhan / Krotov, Ilya / Chinaev, Nikolay / Poletaev, Vsevolod / Kozlukov, Sergei / Pasechnik, Igor / Yakupov, Bulat / Sanakoyeu, Artsiom / Lebedev, Vadim / Ulyanov, Dmitry

2020

Abstract: Consumer-level depth cameras and depth sensors embedded in mobile devices enable numerous applications, such as AR games and face identification. However, the quality of the captured depth is sometimes insufficient for 3D reconstruction, tracking and ... ...

Abstract	Consumer-level depth cameras and depth sensors embedded in mobile devices enable numerous applications, such as AR games and face identification. However, the quality of the captured depth is sometimes insufficient for 3D reconstruction, tracking and other computer vision tasks. In this paper, we propose a self-supervised depth denoising approach to denoise and refine depth coming from a low quality sensor. We record simultaneous RGB-D sequences with unzynchronized lower- and higher-quality cameras and solve a challenging problem of aligning sequences both temporally and spatially. We then learn a deep neural network to denoise the lower-quality depth using the matched higher-quality data as a source of supervision signal. We experimentally validate our method against state-of-the-art filtering-based and deep denoising techniques and show its application for 3D object reconstruction tasks where our approach leads to more detailed fused surfaces and better tracking.
Keywords	Computer Science - Computer Vision and Pattern Recognition
Publishing date	2020-09-10
Publishing country	us
Document type	Book ; Online
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Article: Magnetic Nanoscalpel for the Effective Treatment of Ascites Tumors.

Zamay, Tatiana / Zamay, Sergey / Luzan, Natalia / Fedotovskaya, Victoriya / Masyugin, Albert / Zelenov, Fyodor / Koshmanova, Anastasia / Nikolaeva, Elena / Kirichenko, Daria / Veprintsev, Dmitry / Kolovskaya, Olga / Shchugoreva, Irina / Zamay, Galina / Lapin, Ivan / Lukyanenko, Anna / Borus, Andrey / Sukhachev, Alexander / Volochaev, Mikhail / Lukyanenko, Kirill /

Shabanov, Alexandr / Zabluda, Vladimir / Zhizhchenko, Alexey / Kuchmizhak, Aleksandr / Sokolov, Alexey / Narodov, Andrey / Prokopenko, Vladimir / Galeev, Rinat / Svetlichnyi, Valery / Kichkailo, Anna

Journal of functional biomaterials

2023 Volume 14, Issue 4

Abstract: One of the promising novel methods for radical tumor resection at a single-cell level is magneto-mechanical microsurgery (MMM) with magnetic nano- or microdisks modified with cancer-recognizing molecules. A low-frequency alternating magnetic field (AMF) ... ...

Abstract	One of the promising novel methods for radical tumor resection at a single-cell level is magneto-mechanical microsurgery (MMM) with magnetic nano- or microdisks modified with cancer-recognizing molecules. A low-frequency alternating magnetic field (AMF) remotely drives and controls the procedure. Here, we present characterization and application of magnetic nanodisks (MNDs) as a surgical instrument ("smart nanoscalpel") at a single-cell level. MNDs with a quasi-dipole three-layer structure (Au/Ni/Au) and DNA aptamer AS42 (AS42-MNDs) on the surface converted magnetic moment into mechanical and destroyed tumor cells. The effectiveness of MMM was analyzed on Ehrlich ascites carcinoma (EAC) cells in vitro and in vivo using sine and square-shaped AMF with frequencies from 1 to 50 Hz with 0.1 to 1 duty-cycle parameters. MMM with the "Nanoscalpel" in a sine-shaped 20 Hz AMF, a rectangular-shaped 10 Hz AMF, and a 0.5 duty cycle was the most effective. A sine-shaped field caused apoptosis, whereas a rectangular-shaped field caused necrosis. Four sessions of MMM with AS42-MNDs significantly reduced the number of cells in the tumor. In contrast, ascites tumors continued to grow in groups of mice and mice treated with MNDs with nonspecific oligonucleotide NO-MND. Thus, applying a "smart nanoscalpel" is practical for the microsurgery of malignant neoplasms.
Language	English
Publishing date	2023-03-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2648525-4
ISSN	2079-4983
ISSN	2079-4983
DOI	10.3390/jfb14040179
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