17 research outputs found
Effect of post-weld heat treatment on microstructure, hardness and low-temperature impact toughness of electron beam welds of NIFS-HEAT-2 and CEA-J57 heats of Vβ4Tiβ4Cr alloy
Bead-on-plate electron beam welding in high vacuum atmosphere was applied to the plates of NIFS- HEAT-2 and CEA-J57 heats of Vβ4Tiβ4Cr alloy. Effect of post-weld heat treatment (PWHT) in the temper- ature range 673β1273 K on the hardness, impact toughness at 77 K and microstructure of weld metal was investigated. After PWHT at 773 K, hardness of weld metal slightly decreases from 180 HV 100 (as-welded state) to βΌ170 HV 100 while absorbed energy increases up to βΌ10 J showing ductile fracture mode. PWHT at 973 K results in re-hardening of weld metal up to βΌ180 HV 100 caused by re-precipitation of TiβC,O,N precipitates and corresponding decreasing absorbed energy to βΌ2 J with brittle fracture mode. PWHT in- between 1073β1273 K results in gradual recovery of hardness towards values comparable with those of base metal. Impact toughness (77 K) of weld metal after PWHT at 1073K is not recovered nether to the value in as-welded state nor to that one of base metal
Impact properties of electron beam welds of V-4Ti-4Cr alloys NIFS-HEAT-2 and CEA-J57
International audienc
RENAL HEMODYNAMICS EVALUATION IN PATIENTS SUFFERING FROM RHEUMATOID ARTHRITIS WITH AND WITHOUT COMORBID HYPERTENSION
Aim. To study the features of renal arterial blood flow in patients suffering from rheumatoid arthritis, its interaction with visual markers of atherosclerosis in the presence of comorbid hypertension.Materials and methods. 113 patients with rheumatoid arthritis (RA) were enrolled into this study. Depending on the comorbidity of hypertension the patients were divided into two groups: without (n=53) and with hypertension (n=60). The comparison group consisted of 41 patients with arterial hypertension without RA. Clinical characteristics and blood biochemistry of all the patients were measured. Renal arterial resistance index (RI), presence of atherosclerotic plaques (ASP) in the carotid arteries were assessed by ultrasound scan.Results. In this investigation we report the correlation of the of renal resistive index (RI) and ultrasound signs of carotid atherosclerosis with hypertension in patients with RA. It was found out that there is the increase of RI in RA associated with the age of patients, the onset of the disease at a later age, the presence of atherosclerotic plaques in the carotid arteries and hypertension. In addition, patients with RA had a high frequency of bilateral RI increase by more than 0.7 (64%). Patients with bilateral high RI had a two-fold increase in the registration rate of atherosclerotic plaques in both group of patients with RA.Conclusion. Increased renal arteries RI in patients with RA is a factor associated with the comorbid hypertension and accompanied by more significant atherosclerotic changes in the carotid arteries in the form of an increased incidence of atherosclerotic plaques
THE RUSSIAN DATA OF INTERNATIONAL ENDORSE REGISTER (EPIDEMIOLOGIC INTERNATIONAL DAY FOR THE EVALUATION OF PATIENTS AT RISK OF VENOUS THROMBOSIS IN ACUTE HOSPITAL CARE SETTING)
Aim. To estimate a risk factor frequency of venous thromboembolism (VTE) in patients urgently hospitalized in hospitals, and also to estimate of patients part having effective prevention of VTE.Material and methods. ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk of Venous Thrombosis in Acute Hospital Care Setting) is the international register. Patients of 40 years and older hospitalised in therapeutic departments as well as patients of 18 years and older hospitalised in surgical departments (358 hospitals in 32 countries) were included in the register. The case history analysis of all patients was performed for estimation of risk VTE and evaluation of preventive therapy quality according to American College of Chest Physicians (ACCP) Recommendation 2004.Results. Totally 68 183 patients (including 30 827 (45%) surgical patients and 37 356 (55%) therapeutic patients) were enrolled in Global ENDORSE Register. Russian centers enrolled 4 788 patients (including 2 829 (59%) surgical patients and 1 959 (41%) therapeutic patients). Totally 35 329 (51,8%) patients enrolled in Global ENDORSE Register (64,4% of surgical patients (19 842) and 41,5% of therapeutic patients (15 487)) had VTE risks. In Russia 2 188 enrolled patients (45,7%) had VTE risks (52% of surgical patients (1 470) and 36,7% of therapeutic patients (718). Totally 17 732 (50,2%) patients enrolled in Global Register ENDORSE and having VTE risks received VTE preventive therapy according to ΠΠ‘Π‘Π Recommendations 2004. In Russia 521 (23,8%) patients enrolled in Global ENDORSE Register and having VTE risks received VTE preventive therapy according to ΠΠ‘Π‘Π Recommendations 2004. It is more than 2 times less in comparison with world level (Ρ<0.001).Conclusion. There are a lot of patients with VTE risks in hospitals. It is necessary to improve preventive therapy of VTE due to better hospital management and more active use of ΠΠ‘Π‘Π Recommendations 2004
ΠΡΠΊΡΠ²Π°Π½Π½Ρ Π»ΡΠ·ΠΎΡΠΈΠΌΠΎ- Π²ΠΌΡΡΠ½ΠΈΠΌΠΈ Π·Π°ΡΠΎΠ±Π°ΠΌΠΈ Ρ Π²ΠΎΡΠΈΡ Π½Π° ΡΠ΅ΡΠ²ΠΎΠ½ΠΈΠΉ ΠΏΠ»ΠΎΡΠΊΠΈΠΉ Π»ΠΈΡΠ°ΠΉ ΠΏΡΠΈ ΡΡΠΎΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΡΡΠ½ΡΠΉ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΡΡ
Prevalence and severity of generalized parodontitis depend especially on the course of diseases affecting theoral mucosa and those ones which are characterized by involvement of the oral mucosa. These diseases includeΒ mainly lichen planus. The common pathogenic agent of generalized parodontitis and lichen planus as well as ofΒ combination of them is inflammation, as generalized parodontitis is inflammation of parardontium tissue characterizedΒ by destruction of periodontium and dental ligamentous apparatus of the alveolar bone and lichen planus is a chronicΒ inflammatory disease of skin and oral mucosa. The purpose is to study processes of lipid peroxidation in the salivaΒ of patients with lichen planus of the skin along with chronic generalized parodontitis.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π»ΠΈΠΏΠΈΠ΄ΠΎΠ² Π² ΡΠ»ΡΠ½Π΅ Π±ΠΎΠ»ΡΠ½ΡΡ
ΡΠΈΠΏΠΈΡΠ½ΡΠΌ ΠΊΡΠ°Ρ-Π½ΡΠΌ ΠΏΠ»ΠΎΡΠΊΠΈΠΌ Π»ΠΈΡΠ°Π΅ΠΌ ΠΊΠΎΠΆΠΈ Π² ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠΈ Ρ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΌ Π³Π΅Π½Π΅ΡΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΡΠΌ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΈΡΠΎΠΌ. ΠΠΎΠ»ΡΡΠ΅Π½ΠΎ Π΄Π°Π½-Π½ΡΠ΅, ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ ΠΎ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠΈ Ρ ΡΡΠΈΡ
Π±ΠΎΠ»ΡΠ½ΡΡ
ΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΠΈ ΠΊ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π½ΠΎΠΌΡ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ,ΡΡΠΎ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠΎΠ² ΠΏΠΎΠ²ΡΠ΅ΠΆΠ΄Π΅Π½ΠΈΡ ΡΠΊΠ°Π½Π΅ΠΉ ΠΏΠΎΠ»ΠΎΡΡΠΈ ΡΡΠ°. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ Π»Π΅ΡΠ΅Π±Π½ΠΎ-ΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ΅ΡΠΎΠΏΡΠΈΡΡΠΈΠΉ, Π² ΠΊΠΎΡΠΎΡΡΠΉ Π²Ρ
ΠΎΠ΄ΡΡ: ΡΠΈΡΡΠ΅ΠΌΠ½Π°Ρ ΡΠ΅ΡΠ°ΠΏΠΈΡ ΠΊΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ»ΠΎΡΠΊΠΎΠ³ΠΎ Π»ΠΈΡΠ°Ρ ΠΊΠΎΠΆΠΈ,ΠΏΡΠΎΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½Π°Ρ Π³ΠΈΠ³ΠΈΠ΅Π½Π° ΠΏΠΎΠ»ΠΎΡΡΠΈ ΡΡΠ° Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π·ΡΠ±Π½ΠΎΠ³ΠΎ ΡΠ»ΠΈΠΊΡΠΈΡΠ° βΠΠΈΠ·ΠΎΠΌΡΠΊΠΎΠΈΠ΄β, Π»Π΅ΡΠ΅Π±Π½ΠΎ-ΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π·ΡΠ±Π½ΠΎΠΉ ΠΏΠ°ΡΡΡ βΠΠ°ΠΊΠ°Π»ΡΡ Π°ΠΊΡΠΈΠ²β. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΎΠΊΠ°Π·Π°Π»ΡΡ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ Π΄Π»Ρ Π»Π΅ΡΠ΅Π½ΠΈΡ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΈΡΠ° Π½Π° ΡΠΎΠ½Π΅ ΡΠΈΠΏΠΈΡΠ½ΠΎΠΉ ΡΠΎΡΠΌΡΠΊΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ»ΠΎΡΠΊΠΎΠ³ΠΎ Π»ΠΈΡΠ°Ρ ΠΊΠΎΠΆΠΈ.ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½ΠΎ ΡΡΠ°Π½ ΠΏΡΠΎΡΠ΅ΡΡΠ² ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ½Π΅Π½Π½Ρ Π»ΡΠΏΡΠ΄ΡΠ² Ρ ΡΠ»ΠΈΠ½Ρ Ρ
Π²ΠΎΡΠΈΡ
Π½Π° ΡΠΈΠΏΠΎΠ²ΠΈΠΉ ΡΠ΅ΡΠ²ΠΎΠ½ΠΈΠΉ ΠΏΠ»ΠΎΡΠΊΠΈΠΉ Π»ΠΈΡΠ°ΠΉ ΡΠΊΡΡΠΈ Π² ΠΏΠΎΡΠ΄Π½Π°Π½Π½Ρ Π· Ρ
ΡΠΎΠ½ΡΡΠ½ΠΈΠΌ Π³Π΅Π½Π΅ΡΠ°Π»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΌ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΈΡΠΎΠΌ. ΠΠ΄Π΅ΡΠΆΠ°Π½ΠΎ Π΄Π°Π½Ρ, ΡΠΊΡ ΡΠ²ΡΠ΄ΡΠ°ΡΡ ΠΏΡΠΎ Π·Π½ΠΈΠΆΠ΅Π½Π½Ρ Π² ΡΠΈΡ
Ρ
Π²ΠΎΡΠΈΡ
ΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΡ Π΄ΠΎ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ½Π΅Π½Π½Ρ, ΡΠΎ ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ ΠΎΠ΄Π½ΠΈΠΌ ΡΠ· ΠΌΠ΅Ρ
Π°Π½ΡΠ·ΠΌΡΠ² ΡΡΠΊΠΎΠ΄ΠΆΠ΅Π½Π½Ρ ΡΠΊΠ°Π½ΠΈΠ½ ΠΏΠΎΡΠΎΠΆΠ½ΠΈΠ½ΠΈ ΡΠΎΡΠ°. Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ Π»ΡΠΊΡΠ²Π°Π»ΡΠ½ΠΎ-ΠΏΡΠΎΡΡΠ»Π°ΠΊΡΠΈΡΠ½ΠΈΡ
Π·Π°Ρ
ΠΎΠ΄ΡΠ², Π΄ΠΎ ΡΠΊΠΎΠ³ΠΎ Π²Ρ
ΠΎΠ΄ΡΡΡ: ΡΠΈΡΡΠ΅ΠΌΠ½Π° ΡΠ΅ΡΠ°ΠΏΡΡ ΡΠ΅ΡΠ²ΠΎΠ½ΠΎΠ³ΠΎ ΠΏΠ»ΠΎΡΠΊΠΎΠ³ΠΎ Π»ΠΈΡΠ°Ρ ΡΠΊΡΡΠΈ, ΠΏΡΠΎΡΠ΅ΡΡΠΉΠ½Π° Π³ΡΠ³ΡΡΠ½Π° ΠΏΠΎΡΠΎΠΆΠ½ΠΈΠ½ΠΈ ΡΠΎΡΠ° ΡΠ· Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½ΡΠΌ Π·ΡΠ±Π½ΠΎΠ³ΠΎ Π΅Π»ΡΠΊΡΠΈΡΡ βΠΡΠ·ΠΎΠΌΡΠΊΠΎΡΠ΄β, Π»ΡΠΊΡΠ²Π°Π»ΡΠ½ΠΎ-ΠΏΡΠΎΡΡΠ»Π°ΠΊΡΠΈΡΠ½ΠΎΡ Π·ΡΠ±Π½ΠΎΡ ΠΏΠ°ΡΡΠΈ βΠΠ°ΠΊΠ°Π»ΡΡ Π°ΠΊΡΠΈΠ²β.ΠΠ°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΡΠ΅ΡΠ°ΠΏΡΡ Ρ Π΄ΠΎΡΡΠ°ΡΠ½ΡΠΎ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΈΠΌ Π΄Π»Ρ Π»ΡΠΊΡΠ²Π°Π½Π½Ρ Ρ
ΡΠΎΠ½ΡΡΠ½ΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°Π»ΡΠ·ΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΈΡΡ Π½Π° ΡΠ»Ρ ΡΠΈΠΏΠΎΠ²ΠΎΡ ΡΠΎΡΠΌΠΈ ΡΠ΅ΡΠ²ΠΎΠ½ΠΎΠ³ΠΎ ΠΏΠ»ΠΎΡΠΊΠΎΠ³ΠΎ Π»ΠΈΡΠ°Ρ ΡΠΊΡΡΠΈ
Receivables Management and Factors Influencing Its Quality
Purpose β to scientifically substantiate the factors influencing the quality of receivables management.
Design/Method/Research approach. This study uses a systematic approach and methods of synthesis, semantic analysis, historical analysis, analogies, generalization, explanation, classification and graphic are applied.
Findings. Management of receivables, which for the seller's company are the debts of buyers - is one of the components of modern relations between enterprises. Limited resources force managers to select tools and sources of financing sales with deferred payment, as well as to analyze the factors that affect the quality of management of such deferred payment. The subsystem of receivables management is presented and analyzed, in which the factors (elements) important for effective management in the enterprise management system are highlighted, which are usually analyzed and corrected during the management of the level of receivables. It is proved that this subsystem needs to be refined taking into account the factors of the macroenvironment. It is emphasized that the factors of influence should be singled out for wholesalers, as in the wholesale chain compared to retail trade, the markup on the value of goods is reduced and it is necessary to financially ensure the sale of goods with deferred payment. Accounts receivable management is considered to be high quality and efficient when, as a result of such management, enterprises become financially stable. The system of factors, where the main role belongs to economic factors, is improved, the approach to their quantitative estimation is offered.
Theoretical implications. The theoretical two-level mathematical model of quantitative estimation of factors of influence on quality of management of receivables of the enterprises is offered.
Practical implications. The results of the study can be used in the management of receivables of enterprises, the formation of tools for assessing the quality of receivables and identify the main factors influencing the quality of receivables.
Originality/Value. The scientific novelty of the research is the content of separate factors of influence on the quality of receivables management is generalized, structured and investigated.
Research limitations/Future Research. Prospects for further research is the development of a comprehensive application mechanism for managing receivables, taking into account the factors influencing its quality and industry characteristics of enterprises.
Paper type β theoretical