31 research outputs found

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    Get PDF
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons

    СУБТОТАЛЬНАЯ РЕЗЕКЦИЯ МОЧЕВОГО ПУЗЫРЯ КАК АЛЬТЕРНАТИВА ЦИСТЭКТОМИИ ПРИ ОБШИРНОМ ЕГО ВОВЛЕЧЕНИИ В ОПУХОЛЕВЫЙ ПРОЦЕСС У БОЛЬНЫХ С МЕСТНО-РАСПРОСТРАНЕННЫМ КОЛОРЕКТАЛЬНЫМ РАКОМ

    Get PDF
    The volume of an operation on the urinary bladder (UB) in case of its extensive involvement due to locally advanced colorectal can-cer varies from partial cystectomy to cystectomy. The results of a morphological examination of 18 patients after pelvic exenterationdemonstrated true invasion into the urinary bladder wall only in 7 (38.9%) cases. This created preconditions for organ-preservingtreatment. Combined operations with partial cystectomy were performed in 37 patients. Pathology showed true tumor invasion intothe urinary bladder wall in 13 (35.1%) cases. The bladder volume was 55.2±17.1 ml after surgery and 175 to 360 (230±31.2) mlfollowing autohydrotraining with pharmacological support made 3 months after surgery. No patient had recurrent urinary bladderdisease. The surgical results suggest that organ-preserving treatment does not violate the oncological radicalism principles and is aserious alternative to cystectomy: Firstly, there is no need for the technically complex stage of an operation - to create a urinaryreservoir. Secondly, urination is preserved by its natural way; there are no signs of urinary incontinence, which ensures the betterquality of life.  Субтотальная резекция мочевого пузыря как альтернатива цистэктомии при обширном его вовлечении в опухолевый процесс у больных с местно-распространенным колоректальным рако

    Редкий случай цистаденомы семенного пузырька у больного раком поперечной ободочной кишки

    Get PDF
    Primary tumors of the seminal vesicles (SVs) are uncommon in the routine practice of urologists. Their diagnosis is complicated by an absence of early signs of the disease. Therefore, usually SVs tumors are detected accidentally during instrumental examinations. Primary tumors of the SVs can be benign. In the Medline, PubMed, and Google Scholar databases we have found 25 descriptions of clinical cases of cystadenomas of the SVs, while in Russian medical literature no publications on the topic can be found. The main diagnostic methods are contrast-enhanced computed tomography, magnetic resonance imaging, and fine needle biopsy. Surgery scale varies from SV resection and vesiculec¬tomy to vesicle resection with prostatectomy and orthotopic neobladder reconstruction and lower anterior resection of the rectum. Considering that primary SV tumors are a rare pathology, there’s no consensus on the scale of surgical intervention.In view of the rarity of the disease and lack of its descriptions in Russian medical literature, we find it interesting to demonstrate a clinical observation of a patient with cystadenoma of the left SV.Первичные опухоли семенных пузырьков (СП) в рутинной практике врача-уролога встречаются редко. Их выявление крайне затруднительно в связи с отсутствием ранних признаков заболевания. Поэтому, как правило, образования СП являются случайной находкой при инструментальных методах исследования. Первичные поражения СП могут носить доброкачественный характер. В поисковых системах Medline, PubMed и Google Scholar нами были найдены описания 25 клинических случаев цистаденом СП, в то время как в отечественной литературе подобных публикаций не обнаружено. Основными диагностическими методами являются компьютерная томография с контрастированием, магнитно-резонансная томография и тонкоигольная биопсия. Объем операции варьирует от резекции СП и везикулэктомии до цистпростатвезикулэктомии с ортотопической деривацией мочи и низкой передней резекцией прямой кишки. В связи с тем, что первичное поражение СП является довольно редкой патологией, до сих пор нет единого мнения в отношении объема оперативного вмешательства.Ввиду редкости заболевания и отсутствия описания в отечественной литературе нам представляется интересным продемонстрировать клиническое наблюдение больного с цистаденомой левого СП

    PARTIAL CYSTECTOMY AS AN ALTERNATIVE TO CYSTECTOMY FOR EXTENSIVE URINARY BLADDER INVOLVEMENT BY LOCALLY ADVANCED COLORECTAL CANCER

    No full text
    <p>The volume of an operation on the urinary bladder (UB) in case of its extensive involvement due to locally advanced colorectal can-cer varies from partial cystectomy to cystectomy. The results of a morphological examination of 18 patients after pelvic exenterationdemonstrated true invasion into the urinary bladder wall only in 7 (38.9%) cases. This created preconditions for organ-preservingtreatment. Combined operations with partial cystectomy were performed in 37 patients. Pathology showed true tumor invasion intothe urinary bladder wall in 13 (35.1%) cases. The bladder volume was 55.2±17.1 ml after surgery and 175 to 360 (230±31.2) mlfollowing autohydrotraining with pharmacological support made 3 months after surgery. No patient had recurrent urinary bladderdisease. The surgical results suggest that organ-preserving treatment does not violate the oncological radicalism principles and is aserious alternative to cystectomy: Firstly, there is no need for the technically complex stage of an operation - to create a urinaryreservoir. Secondly, urination is preserved by its natural way; there are no signs of urinary incontinence, which ensures the betterquality of life. </p><p> </p

    Transformations of Spatial Distributions of Bio-Polymers and Nanoparticles in Water Suspensions Induced by Resonance-Like Low Frequency Electrical Fields

    No full text
    Water suspensions of in-organic (metals and oxides) and organic nano-objects (chitozan and collagen) were subjected to the treatment of direct and alternative electrical fields. In addition to quasi-periodical spatial patterning resonance-like performance of spatial distributions of these suspensions has been found at low frequencies of alternating electrical field. These resonances are explained as the result of creation of equilibrium states of groups of charged nano-objects with opposite signs of charges at the interparticle distances where the forces of Coulomb attraction are compensated by the repulsion forces induced by relatively negative polarization of hydrated regions surrounding the nanoparticles with respect to pure water. The low frequencies of these resonances are explained by comparatively big distances between the particles and their big masses with t\respect to masses of atoms constituting molecules with high resonance frequencies. These new resonances open a new approach to detailed modeling and understanding of mechanisms of the influence of electrical fields on the functioning of internal organs of living organisms at the level of cells and neurons
    corecore