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  1. Article: Klinicheskiĭ opyt primeneniia rivaroksabana v lechenii patsientov s ostrymi venoznymi trombozami na fone onkopatologii.

    Kravtsov, P F / Katorkin, S E / Melnicov, M A

    Khirurgiia

    2018  , Issue 1, Page(s) 57–63

    Abstract: The urgency of the problem. The incidence of various thromboembolic complications in patients with oncopathology reaches 5-12%. When treating VTE in patients with oncology it is necessary to choose between two generally recognized alternatives. The ... ...

    Title translation Clinical experience with the use of rivaroxaban in the treatment of cancer patients with venous thrombosis.
    Abstract The urgency of the problem. The incidence of various thromboembolic complications in patients with oncopathology reaches 5-12%. When treating VTE in patients with oncology it is necessary to choose between two generally recognized alternatives. The recommended two-component scheme of the initiating phase of anticoagulant therapy with subsequent long-term admission of VKA is fraught with the development of clinically significant bleeding during the initial selection of the dose of warfarin and an increased risk of recurrence of VTE. Long-term parenteral use of LMWH is often negatively treated by patients and adversely affects compliance. For these reasons, enteral administration of new oral anticoagulants is promising for prolonged anticoagulant therapy in this category of patients. The paper cites three clinical cases of treatment of patients with acute venous thrombosis of deep veins against a background of different oncological processes. In the first case - the operated previously for cancer, in the second case - to be treated over oncological process and in the third case - in the primary cancer detection.
    Discussion: The results of the studies of EINSTEIN-DVT and EINSTEIN-PE allow us to consider the use of rivaroxaban in the treatment of patients with VTE on the background of oncopathology. The possibility of its use from the first day, in our opinion, is a significant advantage, since it allows us to reveal the clinical effectiveness of anticoagulant therapy already during the first stage of treatment, since NOAKs does not imply the possibility of laboratory monitoring.
    MeSH term(s) Adult ; Drug Monitoring/methods ; Factor Xa Inhibitors/administration & dosage ; Female ; Humans ; Lower Extremity/blood supply ; Male ; Middle Aged ; Neoplasms/complications ; Neoplasms/therapy ; Risk Assessment ; Rivaroxaban/administration & dosage ; Symptom Assessment ; Therapeutics ; Ultrasonography, Doppler, Duplex/methods ; Venous Thrombosis/diagnosis ; Venous Thrombosis/drug therapy ; Venous Thrombosis/etiology ; Venous Thrombosis/physiopathology
    Chemical Substances Factor Xa Inhibitors ; Rivaroxaban (9NDF7JZ4M3)
    Language Russian
    Publishing date 2018
    Publishing country Russia (Federation)
    Document type Case Reports ; Journal Article
    ZDB-ID 419230-8
    ISSN 2309-5628 ; 0023-1207
    ISSN (online) 2309-5628
    ISSN 0023-1207
    DOI 10.17116/hirurgia2018157-63
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  2. Article ; Online: Production of HD Molecules in Definite Hyperfine Substates.

    Engels, R / Grigoryev, K / Kannis, C S / Michael, Y / Ströher, H / Verhoeven, V / Büscher, M / Huxold, L / Kochenda, L / Kravtsov, P / Trofimov, V / Vasilyev, A / Vznuzdaev, M

    Physical review letters

    2019  Volume 124, Issue 11, Page(s) 113003

    Abstract: Polarized atomic beam sources have been in operation for many years to produce either nuclear polarized atomic hydrogen or deuterium beams. In recent experiments, such a source was used to polarize both isotopes independently at the same time. By ... ...

    Abstract Polarized atomic beam sources have been in operation for many years to produce either nuclear polarized atomic hydrogen or deuterium beams. In recent experiments, such a source was used to polarize both isotopes independently at the same time. By recombination of the atoms, hydrogen-deuterium molecules with all possible nuclear spin combinations can be created. Those spin isomers are useful for further applications, like precision spectroscopy, as polarized targets for laser-particle acceleration, polarized fuel for fusion reactors, or as an option for future measurements of electric dipole moments.
    Language English
    Publishing date 2019-07-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.124.113003
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  3. Article: Vliyanie trenirovki myshechnogo komponenta myshechno-venoznoi pompy nizhnikh konechnostei na techenie varikoznoi bolezni.

    Kravtsov, P F / Katorkin, S A / Volkovoy, V V / Sizonenko, Ya V

    Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury

    2016  Volume 93, Issue 6, Page(s) 33–36

    Abstract: Investigations of the influence of the training of the muscular component of the musculo-venous pump in the lower extremities on the clinical course of varicose vein disease and correction of the step cycle are currently underway.: Aim: The objective ... ...

    Title translation The influence of the training of the muscular component of the musculo-venous pump in the lower extremities on the clinical course of varicose vein disease.
    Abstract Investigations of the influence of the training of the muscular component of the musculo-venous pump in the lower extremities on the clinical course of varicose vein disease and correction of the step cycle are currently underway.
    Aim: The objective of the present study was to evaluate the impact of the training of the muscular component of the musculo-venous pump in the lower extremities and of the correction of the step cycle on the quality of life of the patients presenting with varicose vein disease.
    Material and methods: The study included 22 patients with varicose veins in the lower extremities (CEAP clinical class C3 or C4). All the patients performed, twice daily during a total of 60 days, a specially designed complex of 7 exercise intended to strengthen the posterior muscle group of the lower legs and correct the step cycle.
    Results: After 60 days, all the patients reported the appearance of the subjective signs suggesting positive dynamics of their condition. The following statistically significant changes were documented: reduction of the malleolar circumference, improvement of integral characteristics of the quality of life as evaluated with the use of the international questionnaire for the patients with chronic lower limb venous insufficiency (CIVIQ), normalization of the frequency and amplitude of modal oscillations in the soleus muscle revealed by electromyography. The correction of foot rolling muscles and the sequence of activation of the muscles involved in the first five phases of the cycle step increases the strength of contraction of the soleus muscle, promotes venous blood flow in the proximal direction, and thereby enhances the efficiency of the venous outflow.
    Conclusion: The development of adequate gain skills, the correction of the step cycle, and the strengthening of the muscular component of the musculo-venous pump lead to the improvement of the clinical course of varicose vein disease. The proposed complex of physical exercises provides an effective and pathogenetically sound additional tool for the treatment of the patients presenting with this pathology.
    MeSH term(s) Exercise Therapy ; Humans ; Muscle, Skeletal/blood supply ; Muscle, Skeletal/physiopathology ; Regional Blood Flow ; Varicose Veins/therapy
    Language Russian
    Publishing date 2016
    Publishing country Russia (Federation)
    Document type Clinical Trial ; Journal Article
    ZDB-ID 600726-0
    ISSN 2309-1355 ; 0042-8787
    ISSN (online) 2309-1355
    ISSN 0042-8787
    DOI 10.17116/kurort2016633-36
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  4. Article: [Evaluation of the effectiveness and safety of compression hosiery «Mediven Plus» in the treatment of elderly patients with chronic venous diseases of the lower extremities].

    Katorkin, S E / Melnikov, M A / Kravtsov, P F / Bulgakova, S V / Zakharova, N O / Nikolaeva, A V / Treneva, E V

    Advances in gerontology = Uspekhi gerontologii

    2017  Volume 30, Issue 4, Page(s) 570–572

    Abstract: This publication presents the results of a study aimed at assessing the justification of the use of compression hosiery «Mediven Plus» among patients in the older age group on the basis of demographic, anthropometric data (gender, age, weight of the ... ...

    Abstract This publication presents the results of a study aimed at assessing the justification of the use of compression hosiery «Mediven Plus» among patients in the older age group on the basis of demographic, anthropometric data (gender, age, weight of the patient; the volume of the lower leg, upper thigh), clinical examination, data of instrumental examination (duplex ultrasound, volumetry, legometry), data of laboratory tests (fibrinogen, soluble fibrin-monomer complexes). The effectiveness of therapeutic effects of compression underwear is proved for all parameters.
    MeSH term(s) Aged ; Chronic Disease ; Female ; Humans ; Lower Extremity/blood supply ; Male ; Peripheral Vascular Diseases/therapy ; Stockings, Compression ; Ultrasonography, Doppler, Duplex
    Language Russian
    Publishing date 2017
    Publishing country Russia (Federation)
    Document type Evaluation Studies ; Journal Article
    ISSN 1561-9125
    ISSN 1561-9125
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  5. Article ; Online: Cryogenic distillation facility for isotopic purification of protium and deuterium.

    Alekseev, I / Arkhipov, Ev / Bondarenko, S / Fedorchenko, O / Ganzha, V / Ivshin, K / Kammel, P / Kravtsov, P / Petitjean, C / Trofimov, V / Vasilyev, A / Vasyanina, T / Vorobyov, A / Vznuzdaev, M

    The Review of scientific instruments

    2015  Volume 86, Issue 12, Page(s) 125102

    Abstract: Isotopic purification of the protium and deuterium is an important requirement of many physics experiments. A cryogenic facility for high-efficiency separation of hydrogen isotopes with a cryogenic distillation column as the main element is described. ... ...

    Abstract Isotopic purification of the protium and deuterium is an important requirement of many physics experiments. A cryogenic facility for high-efficiency separation of hydrogen isotopes with a cryogenic distillation column as the main element is described. The instrument is portable, so that it can be used at the experimental site. It was designed and built at the Petersburg Nuclear Physics Institute, Gatchina, Russia. Fundamental operating parameters have been measured including a liquid holdup in the column packing, the pressure drops across the column and the purity of the product at different operating modes. A mathematical model describes expected profiles of hydrogen isotope concentration along the distillation column. An analysis of ortho-parahydrogen isomeric composition by gas chromatography was used for evaluation of the column performance during the tuning operations. The protium content during deuterium purification (≤100 ppb) was measured using gas chromatography with accumulation of the protium in the distillation column. A high precision isotopic measurement at the Institute of Particle Physics, ETH-Zurich, Switzerland, provided an upper bound of the deuterium content in protium (≤6 ppb), which exceeds all commercially available products.
    Language English
    Publishing date 2015-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/1.4936413
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  6. Article ; Online: Production of hyperpolarized H_{2} molecules from H[over →] atoms in gas-storage cells.

    Engels, R / Gaißer, M / Gorski, R / Grigoryev, K / Mikirtychyants, M / Nass, A / Rathmann, F / Seyfarth, H / Ströher, H / Weiss, P / Kochenda, L / Kravtsov, P / Trofimov, V / Tschernov, N / Vasilyev, A / Vznuzdaev, M / Schieck, H Paetz Gen

    Physical review letters

    2015  Volume 115, Issue 11, Page(s) 113007

    Abstract: The preservation of the nuclear polarization of hydrogen atoms during the recombination to molecules was observed on different surface materials in the temperature range from 45 to 100 K and for magnetic fields up to 1 T. On a gold and a fused quartz ... ...

    Abstract The preservation of the nuclear polarization of hydrogen atoms during the recombination to molecules was observed on different surface materials in the temperature range from 45 to 100 K and for magnetic fields up to 1 T. On a gold and a fused quartz surface, the expected molecular polarization of about 50% or lower of the atomic polarization was measured, while a surface layer of perfluoropolyether (Fomblin) shows a nearly complete preservation (at least 97%) of the atomic polarization during the recombination process. Further experiments have the possibility of storing polarized deuterium molecules and to use them in nuclear-fusion installations. Another application might be the production of polarized substances for enhanced NMR techniques.
    Language English
    Publishing date 2015-09-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.115.113007
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  7. Article: Doslidzhennia konverhentsiï hipotalamichnykh neĭroniv.

    Kravtsov, P Ia / Natrus, L V

    Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994)

    1999  Volume 45, Issue 1-2, Page(s) 127–133

    Abstract: In this study has been reveibed the peculiarities of convergence of afferent cortical inputs to the hypothalamic neurons. Single and the serial stimulation of phylogenetically distinct cortical areas (proreal cortex (field 8), cingular cortex (field 24), ...

    Title translation Convergence studies of hypothalamic neurons.
    Abstract In this study has been reveibed the peculiarities of convergence of afferent cortical inputs to the hypothalamic neurons. Single and the serial stimulation of phylogenetically distinct cortical areas (proreal cortex (field 8), cingular cortex (field 24), pyriform lobule (periamygdala cortex), and hippocampus (CA3) were used. We have established two main focuses of expressed convergence of signals from the above mentioned cortical areas. First of them was located in the lateral hypothalamus nucleus, second--in the centromedial hypothalamus nucleus. Single cortical stimulation was found to excite majority of hypothalamus neurons. Expressed prevalence of inhibitory responses over excitatory ones were found in case of serial stimulation application. This functional organisation of the hypothalamic nucleus allow to propose tonic character of the cortical influences due to serial stimulation and the eventual character of these influences due to single stimulation.
    MeSH term(s) Afferent Pathways/physiology ; Animals ; Brain Mapping/methods ; Cats ; Cerebral Cortex/physiology ; Female ; Hypothalamus/physiology ; Male ; Microelectrodes ; Neurons/physiology
    Language Ukrainian
    Publishing date 1999
    Publishing country Ukraine
    Document type English Abstract ; Journal Article
    ZDB-ID 420438-4
    ISSN 2522-9028 ; 0015-3311 ; 0201-8489
    ISSN 2522-9028 ; 0015-3311 ; 0201-8489
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  8. Article ; Online: Phenylcyanamidoruthenium scorpionate complexes.

    Harb, Carmen / Kravtsov, Pavel / Choudhuri, Mohommad / Sirianni, Eric R / Yap, Glenn P A / Lever, A B P / Crutchley, Robert J

    Inorganic chemistry

    2013  Volume 52, Issue 3, Page(s) 1621–1630

    Abstract: Nine [Ru(Tp)(dppe)L] complexes, where Tp is hydrotris(pyrazol-1-yl)borate, dppe is ethylenebis(diphenylphosphine), and L is (4-nitrophenyl)cyanamide (NO(2)pcyd(-)), (2-chlorophenyl)cyanamide (2-Clpcyd(-)), (3-chlorophenyl)cyanamide (3-Clpcyd(-)), (2,4- ... ...

    Abstract Nine [Ru(Tp)(dppe)L] complexes, where Tp is hydrotris(pyrazol-1-yl)borate, dppe is ethylenebis(diphenylphosphine), and L is (4-nitrophenyl)cyanamide (NO(2)pcyd(-)), (2-chlorophenyl)cyanamide (2-Clpcyd(-)), (3-chlorophenyl)cyanamide (3-Clpcyd(-)), (2,4-dichlorophenyl)cyanamide (2,4-Cl(2)pcyd(-)), (2,3-dichlorophenyl)cyanamide (2,3-Cl(2)pcyd(-)), (2,5-dichlorophenyl)cyanamide (2,5-Cl(2)pcyd(-)), (2,4,5-trichlorophenyl)cyanamide (2,4,5-Cl(3)pcyd(-)), (2,3,5,6-tetrachlorophenyl)cyanamide (2,3,5,6-Cl(4)pcyd(-)), and (pentachlorophenyl)cyanamide (Cl(5)pcyd(-)), and the dinuclear complex [{Ru(Tp)(dppe)}(2)(μ-adpc)], where adpc(2-) is azo-4,4-diphenylcyanamide, have been prepared and characterized. The crystal structures of [Ru(Tp)(dppe)(Cl(5)pcyd)] and [{Ru(Tp)(dppe)}(2)(μ-adpc)] reveal the Ru(II) ion to occupy a pseudooctahedral coordination sphere in which the cyanamide ligand coordinates to Ru(II) by its terminal nitrogen atom. For both complexes, the cyanamide ligands are planar, indicating significant π mixing between the cyanamide and phenyl moieties as well as the azo group in the case of adpc(2-). The optical spectra of the nominally ruthenium(III) species [Ru(Tp)(dppe)L](+) were obtained through spectroelectrochemistry measurements and showed an intense near-IR absorption band. Time-dependent density functional theory calculations of these species revealed that oxidation of the ruthenium(II) species led to species where partial oxidation of the cyanamide ligand had occurred, indicative of noninnocent character for these ligands. The spin densities reveal that while the 3-Clpycd species has substantial Ru(II)(3-Clpycd(0)) character, the Cl(5)pycd species is a much more localized ruthenium(III) complex of the Cl(5)pycd monoanion. Some bond order and charge distribution data are derived for these ruthenium(III) species. The near-IR band is assigned as a quite complex mixture of d-d, 4d(π) to L(NCN) MLCT, and L(NCN) to Ru 4d LMCT with even a scorpionate ligand component. Spectroelectrochemistry was also performed on [{Ru(Tp)(dppe)}(2)(μ-adpc)] to generate the mixed-valence state. The intense intervalence transition that is observed in the near-IR is very similar to that previously reported for [{Ru(trpy)(bpy)}(2)(μ-adpc)](2+), where trpy is 2,2':6',2"-terpyridine and bpy is 2,2'-bipyridine, and by analogy identifies [{Ru(Tp)(dppe)}(2)(μ-adpc)](+) as a delocalized mixed-valence complex.
    MeSH term(s) Cyanamide/chemistry ; Models, Molecular ; Molecular Structure ; Organometallic Compounds/chemical synthesis ; Organometallic Compounds/chemistry ; Ruthenium/chemistry
    Chemical Substances Organometallic Compounds ; Cyanamide (420-04-2) ; Ruthenium (7UI0TKC3U5)
    Language English
    Publishing date 2013-02-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic302535h
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  9. Article: [Improvement of rehabilitation efficiency in patients with chronic venous insufficiency of the lower extremities].

    Zhukov, B N / Katorkin, S E / Sizonenko, Ia V / Kravtsov, P F

    Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury

    2009  , Issue 4, Page(s) 19–22

    Abstract: The relationship between functional incompetence, development and severity of chronic venous insufficiency of the lower extremities was investigated by the method of clinical analysis of locomotor activity. Results of the study may be used to choose an ... ...

    Abstract The relationship between functional incompetence, development and severity of chronic venous insufficiency of the lower extremities was investigated by the method of clinical analysis of locomotor activity. Results of the study may be used to choose an optimal therapeutic modality and assess dynamics of its efficiency. It was shown that the treatment of chronic venous insufficiency in the majority of the patients is inefficient unless functional activity of the lower extremities is recovered. Stimulation of the muscular-venous pump improves the outcome of postoperative rehabilitation, permits to reduce its duration, and improves quality of life of the patients.
    MeSH term(s) Biomechanical Phenomena ; Chronic Disease ; Humans ; Leg/blood supply ; Leg/surgery ; Physical Therapy Modalities ; Treatment Outcome ; Venous Insufficiency/diagnosis ; Venous Insufficiency/rehabilitation ; Venous Insufficiency/surgery
    Language Russian
    Publishing date 2009-07
    Publishing country Russia (Federation)
    Document type English Abstract ; Journal Article
    ZDB-ID 600726-0
    ISSN 2309-1355 ; 0042-8787
    ISSN (online) 2309-1355
    ISSN 0042-8787
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  10. Article: Dinamika pokazateleĭ prostatsiklin-tromboksanovoĭ sistemy pod vliianiem giperbaricheskoĭ oksigenatsii u podrostkov s vegetososudistoĭ disfunktsieĭ po gipotenzivnomu tipu.

    Buriak, V N / Prokhorov, E V / Kravtsov, P Ia

    Likars'ka sprava

    2001  , Issue 5-6, Page(s) 80–83

    Abstract: As many as 185 juveniles aged between 11 to 14 years presenting with hypotensive type vegetovascular dysfunction have been examined to study the time-related changes in the blood content of prostacyclin and tromboxane under conditions of hyperbaric ... ...

    Title translation Dynamics of the indices of the prostacyclin-thromboxane system in adolescents with hypotensive type vegetovascular dysfunction exposed to hyperbaric oxygenation.
    Abstract As many as 185 juveniles aged between 11 to 14 years presenting with hypotensive type vegetovascular dysfunction have been examined to study the time-related changes in the blood content of prostacyclin and tromboxane under conditions of hyperbaric oxygenation. The control group copmrised 69 essentially healthy juvenile subjects the same age as those with dysfunction. Hyperbaric oxygenation has had a normalizing effect on indices for the prostacyclin-tromboxane system in those juveniles presenting with hypotensive type vegetovascular dysfunction, which fact can be explained by a drop in tenseness of mechanisms of the vegetative imbalance compensation.
    MeSH term(s) Adolescent ; Autonomic Nervous System Diseases/blood ; Autonomic Nervous System Diseases/physiopathology ; Autonomic Nervous System Diseases/therapy ; Child ; Cohort Studies ; Epoprostenol/blood ; Humans ; Hyperbaric Oxygenation ; Hypotension/blood ; Hypotension/physiopathology ; Hypotension/therapy ; Thromboxanes/blood ; Time Factors
    Chemical Substances Thromboxanes ; Epoprostenol (DCR9Z582X0)
    Language Russian
    Publishing date 2001-09
    Publishing country Ukraine
    Document type English Abstract ; Journal Article
    ZDB-ID 40876-1
    ISSN 1019-5297 ; 0049-6804
    ISSN 1019-5297 ; 0049-6804
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