680 research outputs found
TREATMENT OF PATIENTS WITH DIABETIC FOOT SYNDROME
The article reviews modern approaches in complex treatment of patients with diabetic foot syndrome. Authors present their experience with the patients who arrived in planned and emergency order, the criteria of choice of the strategy of surgical treatment of diabetic foot syndrome. Direct and remote results of introduced scheme are studied and. its advantages and. disadvantages are revealed
Π ΡΡΡΠΊΠΈΠΉ Π‘Π΅Π²Π΅Ρ Π² ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ΅: ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠΎΠ΅ΠΊΡΠ° ΠΊΡΠ»ΡΡΡΡΠ½ΠΎΠΉ ΠΊΠ»Π°Π΄ΠΎΠ²ΠΎΠΉ ΡΡΡΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠΎΠ΄Π° ΠΈ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΠΉ ΠΊΡΠΈΠ·ΠΈΡ ΡΡΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΌΠ°
ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
, ΡΠΎΡΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
, ΡΡΠ½ΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ Π΄Π΅ΠΌΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π΄Π°Π½Π½ΡΡ
ΡΠ°ΡΡΠΌΠ°-ΡΡΠΈΠ²Π°ΡΡΡΡ ΠΊΡΠ»ΡΡΡΡΠ½ΡΠ΅ ΠΈ ΡΡΠ½ΠΎΠΏΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ, ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΠ²ΡΠΈΠ΅ Π½Π° ΠΠ²ΡΠΎΠΏΠ΅ΠΉΡΠΊΠΎΠΌ/Π ΡΡΡΠΊΠΎΠΌ Π‘Π΅Π²Π΅ΡΠ΅ Π½Π° ΠΏΡΠΎΡΡΠΆΠ΅Π½ΠΈΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠ΅ΡΠΈΠΎΠ΄Π°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠ²Π΅ΠΊΠΎΠ²ΠΎΠΉ ΠΏΡΠΎΡΠ΅ΡΡ ΠΊΠΎΠ»ΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΈ Π ΡΡΡΠΊΠΎΠ³ΠΎ Π‘Π΅Π²Π΅ΡΠ° ΠΏΡΠΈΠ²Π΅Π» ΠΊ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π΅Π΄ΠΈΠ½ΠΎΠΉ ΠΈΡΡΠΎΡΠΈΠΊΠΎ-ΠΊΡΠ»ΡΡΡΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ²ΠΈΠ½ΡΠΈΠΈ, ΠΊΠΎΡΠΎΡΠ°Ρ Π² ΡΠΎΠ²Π΅ΡΡΠΊΠΈΠ΅ Π³ΠΎΠ΄Ρ Π±ΡΠ»Π° ΡΠ°Π·Π΄Π΅Π»Π΅Π½Π° Π½Π° ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΠ΅ Π½Π°ΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎ-Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΡΠ΅ Π°Π½ΠΊΠ»Π°Π²Ρ, Π½ΠΎ ΡΡΠ½ΠΎΠΊΡΠ»ΡΡΡΡΠ½ΡΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅Π΄Π½ΠΈΡ
Π΄Π΅ΡΡΡΠΈΠ»Π΅ΡΠΈΠΉ ΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ ΡΠ΅ΠΊΠΎΠ½ΡΡΡΡΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΏΡΠ΅ΠΆΠ½ΠΈΠΉ ΠΊΡΠ»ΡΡΡΡΠ½ΡΠΉ Π»Π°Π½Π΄ΡΠ°ΡΡ ΡΠ΅Π³ΠΈΠΎΠ½Π°, ΡΡΠΎ ΡΠΎΠ·Π΄Π°Π΅Ρ ΠΊΡΠ»ΡΡΡΡΠ½ΡΡ ΠΈ ΠΈΠ΄Π΅ΠΉΠ½ΡΡ ΠΎΡΠ½ΠΎΠ²Ρ Π΄Π»Ρ ΡΠ΅Π³ΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ
Clinical Experience of Luminescent Diagnostics of Precancerous Diseases and Cervical Cancer
The article summarizes the experience of using luminescent diagnostics with the use of ytterbium porphyrin complexes in gynecology and oncology. A pharmaceutical composition based on the Yb complex of 2,4-dimethoxyhematoporphyrin IX was used as the luminescent markers within the infrared range. The determination of luminescence characteristics (luminescence intensity) was carried out using a laserfiber fluorimeter in the range of 900-1100 nm. A new method for diagnosis of cervical disease has been proposed. The method of luminescent diagnostics allows to conduct a survey of a large number of patients in a short time. The method of luminescent diagnostics using the ytterbium complexes of porphyrins is not invasive. The method can be used as a screening. Differences between normal and pathologically altered cervical tissue have been identified and differences between pathological changes in the cervix HSIL (CIN II, CIN III) and cervical cancer are reliable.
Keywords: Cervical cancer, squamous cell carcinoma, diagnosis of cervical cancer, squamous intraepithelial lesions of high grade β HSIL, luminescent diagnostics, luminescing in the near infrared (NIR) spectral region, porphyrins, ytterbium complexes of porphyrins
Nonlinear electrochemical relaxation around conductors
We analyze the simplest problem of electrochemical relaxation in more than
one dimension - the response of an uncharged, ideally polarizable metallic
sphere (or cylinder) in a symmetric, binary electrolyte to a uniform electric
field. In order to go beyond the circuit approximation for thin double layers,
our analysis is based on the Poisson-Nernst-Planck (PNP) equations of dilute
solution theory. Unlike most previous studies, however, we focus on the
nonlinear regime, where the applied voltage across the conductor is larger than
the thermal voltage. In such strong electric fields, the classical model
predicts that the double layer adsorbs enough ions to produce bulk
concentration gradients and surface conduction. Our analysis begins with a
general derivation of surface conservation laws in the thin double-layer limit,
which provide effective boundary conditions on the quasi-neutral bulk. We solve
the resulting nonlinear partial differential equations numerically for strong
fields and also perform a time-dependent asymptotic analysis for weaker fields,
where bulk diffusion and surface conduction arise as first-order corrections.
We also derive various dimensionless parameters comparing surface to bulk
transport processes, which generalize the Bikerman-Dukhin number. Our results
have basic relevance for double-layer charging dynamics and nonlinear
electrokinetics in the ubiquitous PNP approximation.Comment: 25 pages, 17 figures, 4 table
Single and molecular ion irradiation-induced effects in GaN : experiment and cumulative MD simulations
An investigation of mechanisms of enhancement of irradiation-induced damage formation in GaN under molecular in comparison to monatomic ion bombardment is presented. Ion-implantation-induced effects in wurtzite GaN bombarded with 0.6 keV amu(-1) F, P, PF2, PF4, and Ag ions at room temperature are studied experimentally and by cumulative MD simulation in the correct irradiation conditions. In the low dose regime, damage formation is correlated with a reduction in photoluminescence decay time, whereas in the high dose regime, it is associated with the thickness of the amorphous/disordered layer formed at the sample surface. In all the cases studied, a shift to molecular ion irradiation from bombardment by its monatomic constituents enhances the damage accumulation rate. Implantation of a heavy Ag ion, having approximately the same mass as the PF4 molecule, is less effective in surface damage formation, but leads to noticeably higher damage accumulation in the bulk. The cumulative MD simulations do not reveal any significant difference in the total amount of both point defects and small defect clusters produced by light monatomic and molecular ions. On the other hand, increased production of large defect clusters by molecular PF4 ions is clearly seen in the vicinity of the surface. Ag ions produce almost the same number of small, but more large defect clusters compared to the others. These findings show that the higher probability of formation of large defect clusters is important mechanism of the enhancement of stable damage formation in GaN under molecular, as well as under heavy monatomic ion irradiation.Peer reviewe
Increasing the efficiency of investments on survey of abundant land for their return to agricultural us
The "βState program for the effective involvement of abundant agricultural land in the use and the development of the reclamation complex of the Russian Federationβ for 2021β2030" assumes the return of 12 million hectares out of 44 million hectares of all abandoned agricultural land (AAL) in the Russian Federation. The costs of 12 million hectares survey can be considered productive, while the costs of surveying the remaining 32 million hectares should be considered unproductive. The application of the new geoinformation database of βSoils of agricultural lands of the Russian Federationβ (DB SALRU) developed by the Federal Research Centre βV.VΒ Dokuchaev Soil Sience Instituteβ allows reduction of unproductive costs. By the example of the Vladimir region, a typical Russian region with AAL, the option of ranking AAL by their quality was demonstrated to determine the order of their return to agricultural use. The soil quality criteria are the bonitet and the normative yield of grain crops, which are part of the DB SALRU. It is proposed to consider the expenditures on the survey of AAL for the soils, which are first to be returned to agricultural use, as productive costs. These soils occupy 25% of the AAL of the region. The best quality soils are characterized by more than 40 points of bonitet and the standard yield of grain crops of more than 20 centners/ha. The cost of surveying the lands of the first order of returning to agricultural use is 10 million 80 thousand rubles. Survey of AAL soils of IIβIV orders of involvement in agricultural use, with relatively poor quality compared to the soils of the first order, is proposed to be conducted in the case of expansion of the State program in the future. This would save the unproductive expenses for the survey of AAL for the Vladimir region by 30 million 165.5 thousand rubles. The application of the proposed GIS-approach makes it possible to reduce unproductive expenses for the survey of AAL in the Russian Federation nearly by 5.600 million rubles
ΠΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡ ΠΈ ΡΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ Sparganium Γ longifolium (Typhaceae) Π² ΡΠ΅Π½ΡΡΠ΅ ΠΠ²ΡΠΎΠΏΠ΅ΠΉΡΠΊΠΎΠΉ ΡΠ°ΡΡΠΈ Π ΠΎΡΡΠΈΠΈ
The increasing impact of anthropogenic factors and climate change affect the growth of a number of taxa of hybrid nature. These taxa are widespread among various taxonomic groups of aquatic and semi-aquatic plants. The genus Sparganium L. Π is not an exception. In that regard, the aim of this study is to conduct biomorphological investigation of Sparganium Γ longifolium Turcz. ex Ledeb., evaluate qualitative and quantitative criteria for the hybrid similarities and differences with its parental species, as well as to analyze data on its habitat characteristics. Samples were collected in 2014β2016 from waterbodies in European Russia (Tver and Yaroslavl oblasts). In the study on biomorphology of S. Γ longifolium we used live and fixed materials, as well as herbarium funds of IBIW, MXA and MW. To establish and specify taxonomic features of the hybrid under study, indicating to its similarity with a certain ancestral species, our data on the morphology and ecology of S. emersum Rehm. and S. gramineum Georgi. are used. During field studies, the type of water object where the hybrid was detected, ecological characteristics of its habitat (type of soil, depth, water temperature and pH) are determined; the list of taxa which enter into the cenosis composition is compiled. The biomorphological investigation of S. Γ longifolium shows that by life form this hybrid, as well as its parental species, is a vegetative-mobile evidently-polycentric annual or biennial plant of vegetative origin with a racemose root system. The following should be attributed to the characteristic features justifying the hybrid origin of S. Γ longifolium: 1) a wider, slightly carinated lamina (as in S. emersum); 2) a branched inflorescence (as in S. gramineum); 3) the lower covering leaf of inflorescence, often exceeding the total length of the latter; 4) fruits with a straight (as in S. emersum) as well as bent (as in S. gramineum) style. Interestingly, some populations of S. Γ longifolium are rich in terate forms that can be explained by back crossing with one of the parental species or pleiotropic mutation(s). It is established that S. Γ longifolium is not widespread in European Russia, is a typically freshwater species, occurring in the littoral zone of mesotrophic and dystrophic waterbodies (usually in lakes of glacier origin). At present, its appearance in lake ecosystems is due to accelerated eutrophication caused by increasing human activities. Perhaps earlier this hybrid formation occurred in peripheral zones of the range of S. gramineum under cyclic climate changes. Observations suggest that S. Γ longifolium exceeds S. gramineum in ecological potential. At the same time, habitat features of the latter have an effect on the hybridβs distribution potential (limitation of habitat spectrum), which is hardly exceeds S. emersum in its ecological and coenotic characteristics. 154
ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ΠΎΠ² ΠΊ Π°Π½Π°Π»ΠΈΠ·Ρ ΠΆΠΈΠ·Π½Π΅Π½Π½ΡΡ
ΡΠΎΡΠΌ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡ Π²Π΅Π³Π΅ΡΠ°ΡΠΈΠ²Π½ΠΎΠΉ ΠΈ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠ²Π½ΠΎΠΉ ΡΡΠ΅ΡΡ Sparangium Γ longifolium Turcz. ex Ledeb. (S. emersum Rehm. Γ S. gramineum Georgi). ΠΠΎ ΠΆΠΈΠ·Π½Π΅Π½Π½ΠΎΠΉ ΡΠΎΡΠΌΠ΅ S. Γ longifolium, ΠΊΠ°ΠΊ ΠΈ Π΅Π³ΠΎ ΡΠΎΠ΄ΠΈΡΠ΅Π»ΡΡΠΊΠΈΠ΅ Π²ΠΈΠ΄Ρ, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ Π²Π΅Π³Π΅ΡΠ°ΡΠΈΠ²Π½ΠΎ-ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΡΠΉ ΡΠ²Π½ΠΎΠΏΠΎΠ»ΠΈΡΠ΅Π½ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ°Π»ΠΎΠ»Π΅ΡΠ½ΠΈΠΊ Π²Π΅Π³Π΅ΡΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Ρ ΠΊΠΈΡΡΠ΅Π²ΠΈΠ΄Π½ΠΎΠΉ ΠΊΠΎΡΠ½Π΅Π²ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠΎΠΉ. Π ΡΠ°Π±ΠΎΡΠ΅ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΡ
ΠΏΡΠΈΠ·Π½Π°ΠΊΠΎΠ² Π³ΠΈΠ±ΡΠΈΠ΄Π°, Π»ΠΈΠ±ΠΎ ΡΠΌΠ΅ΡΠ΅Π½ΠΈΠ΅ ΡΠΎΠ³ΠΎ ΠΈΠ»ΠΈ ΠΈΠ½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ·Π½Π°ΠΊΠ° Π² ΡΡΠΎΡΠΎΠ½Ρ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ· ΡΠΎΠ΄ΠΈΡΠ΅Π»ΡΡΠΊΠΈΡ
Π²ΠΈΠ΄ΠΎΠ². Π Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΠΌ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΠΌ, ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡΠΈΠΌ Π³ΠΈΠ±ΡΠΈΠ΄Π½ΠΎΠ΅ ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΠ΅ S. Γ longifolium, ΡΠ»Π΅Π΄ΡΠ΅Ρ ΠΎΡΠ½Π΅ΡΡΠΈ: 1) Π½Π°Π»ΠΈΡΠΈΠ΅ Π±ΠΎΠ»Π΅Π΅ ΡΠΈΡΠΎΠΊΠΎΠΉ, ΡΠ»Π΅Π³ΠΊΠ° ΠΊΠΈΠ»Π΅Π²Π°ΡΠΎΠΉ Π»ΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΊΠΈ (ΠΊΠ°ΠΊ Ρ S. emersum); 2) Π½Π°Π»ΠΈΡΠΈΠ΅ ΡΠ°Π·Π²Π΅ΡΠ²Π»Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΎΡΠ²Π΅ΡΠΈΡ (ΠΊΠ°ΠΊ Ρ S. gramineum); 3) Π½ΠΈΠΆΠ½ΠΈΠΉ ΠΊΡΠΎΡΡΠΈΠΉ Π»ΠΈΡΡ ΡΠΎΡΠ²Π΅ΡΠΈΡ, ΡΠ°ΡΡΠΎ ΠΏΡΠ΅Π²ΡΡΠ°ΡΡΠΈΠΉ ΠΎΠ±ΡΡΡ Π΄Π»ΠΈΠ½Ρ ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π³ΠΎ; 4) Π½Π°Π»ΠΈΡΠΈΠ΅ ΠΏΠ»ΠΎΠ΄ΠΎΠ² ΠΊΠ°ΠΊ Ρ ΠΏΡΡΠΌΡΠΌ (ΠΊΠ°ΠΊ Ρ S. emersum), ΡΠ°ΠΊ ΠΈ Ρ Π·Π°Π³Π½ΡΡΡΠΌ (ΠΊΠ°ΠΊ Ρ S. gramineum) ΡΡΠΎΠ»Π±ΠΈΠΊΠΎΠΌ. ΠΡΠ΄Π΅Π»ΡΠ½ΡΠ΅ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΈ S. Γ longifolium ΠΈΠ·ΠΎΠ±ΠΈΠ»ΡΡΡ ΡΠ΅ΡΠ°ΡΠ½ΡΠΌΠΈ ΡΠΎΡΠΌΠ°ΠΌΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΎΠ±ΡΡΡΠ½Π΅Π½Ρ Π½Π°Π»ΠΈΡΠΈΠ΅ΠΌ Π²ΠΎΠ·Π²ΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΠΊΡΠ΅ΡΠΈΠ²Π°Π½ΠΈΡ, Π»ΠΈΠ±ΠΎ ΠΌΡΡΠ°ΡΠΈΠΈ(ΠΉ) Ρ ΠΏΠ»Π΅ΠΉΠΎΡΡΠΎΠΏΠ½ΡΠΌ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ. ΠΠ½Π°Π»ΠΈΠ· ΠΏΡΠ»ΡΡΡ Π³ΠΈΠ±ΡΠΈΠ΄Π° Π½Π° ΠΆΠΈΠ·Π½Π΅ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π» ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠ΅ ΡΡΠ΅ΡΠΈΠ»ΡΠ½ΠΎΠΉ ΠΏΡΠ»ΡΡΡ Π½Π°Π΄ ΡΠ΅ΡΡΠΈΠ»ΡΠ½ΠΎΠΉ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ S. Γ longifolium β ΠΌΠ°Π»ΠΎΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΠΉ Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ ΠΠ²ΡΠΎΠΏΠ΅ΠΉΡΠΊΠΎΠΉ ΡΠ°ΡΡΠΈ Π ΠΎΡΡΠΈΠΈ β ΡΠΈΠΏΠΈΡΠ½ΠΎ ΠΏΡΠ΅ΡΠ½ΠΎΠ²ΠΎΠ΄Π½ΡΠΉ Π²ΠΈΠ΄, Π²ΡΡΡΠ΅ΡΠ°ΡΡΠΈΠΉΡΡ Π² ΠΏΡΠΈΠ±ΡΠ΅ΠΆΠ½ΠΎΠΉ Π·ΠΎΠ½Π΅ ΠΌΠ΅Π·ΠΎΡΡΠΎΡΠ½ΡΡ
ΠΈ Π΄ΠΈΡΡΡΠΎΡΠ½ΡΡ
Π²ΠΎΠ΄Π½ΡΡ
ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² (ΠΎΠ±ΡΡΠ½ΠΎ Π² ΠΎΠ·Π΅ΡΠ°Ρ
Π»Π΅Π΄Π½ΠΈΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ). ΠΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΉ Π³ΠΈΠ±ΡΠΈΠ΄Π° Π² ΠΎΠ·Π΅ΡΠ°Ρ
ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½ΠΎ ΠΈΡ
ΡΡΡΠ΅ΠΌΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠ²ΡΡΠΎΡΠΈΠΊΠ°ΡΠΈΠ΅ΠΉ Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π°Π½ΡΡΠΎΠΏΠΎΠ³Π΅Π½Π½ΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ. Π Π°Π½Π΅Π΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡΠΎΠ³ΠΎ Π³ΠΈΠ±ΡΠΈΠ΄Π°, Π²Π΅ΡΠΎΡΡΠ½ΠΎ, ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΠ»ΠΎ Π² ΠΏΠ΅ΡΠΈΡΠ΅ΡΠΈΠΉΠ½ΡΡ
ΡΠ°ΡΡΡΡ
Π°ΡΠ΅Π°Π»Π° S. gramineum ΠΏΡΠΈ ΡΠΈΠΊΠ»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡΡ
ΠΊΠ»ΠΈΠΌΠ°ΡΠ°. ΠΠΌΠ΅ΡΡΠ΅ Ρ ΡΠ΅ΠΌ, ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ ΠΌΠ΅ΡΡΠΎΠΎΠ±ΠΈΡΠ°Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π³ΠΎ Π½Π°ΠΊΠ»Π°Π΄ΡΠ²Π°ΡΡ Β«ΠΎΡΠΏΠ΅ΡΠ°ΡΠΎΠΊΒ» Π½Π° ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π» ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½ΠΈΡ Π³ΠΈΠ±ΡΠΈΠ΄Π° (ΠΎΠ³ΡΠ°Π½ΠΈΡΠ΅Π½Π½ΠΎΡΡΡ ΡΠΏΠ΅ΠΊΡΡΠ° ΠΌΠ΅ΡΡΠΎΠΎΠ±ΠΈΡΠ°Π½ΠΈΠΉ), ΠΊΠΎΡΠΎΡΡΠΉ Π²ΡΡΠ΄ Π»ΠΈ ΠΌΠΎΠΆΠ΅Ρ ΠΏΡΠ΅Π²Π·ΠΎΠΉΡΠΈ ΠΏΠΎ ΡΠ²ΠΎΠΈΠΌ ΡΠΊΠΎΠ»ΠΎΠ³ΠΎ-ΡΠ΅Π½ΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°ΠΌ S. emersum. 
High frequency magnetic oscillations of the organic metal -(ET)ZnBr(CHCl) in pulsed magnetic field of up to 81 T
De Haas-van Alphen oscillations of the organic metal
-(ET)ZnBr(CHCl) are studied in pulsed magnetic
fields up to 81 T. The long decay time of the pulse allows determining reliable
field-dependent amplitudes of Fourier components with frequencies up to several
kiloteslas. The Fourier spectrum is in agreement with the model of a linear
chain of coupled orbits. In this model, all the observed frequencies are linear
combinations of the frequency linked to the basic orbit and to the
magnetic-breakdown orbit .Comment: 6 pages, 4 figure
Limitations on the superposition principle: superselection rules in non-relativistic quantum mechanics
The superposition principle is a very basic ingredient of quantum theory.
What may come as a surprise to many students, and even to many practitioners of
the quantum craft, is tha superposition has limitations imposed by certain
requirements of the theory. The discussion of such limitations arising from the
so-called superselection rules is the main purpose of this paper. Some of their
principal consequences are also discussed. The univalence, mass and particle
number superselection rules of non-relativistic quantum mechanics are also
derived using rather simple methods.Comment: 22 pages, no figure
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