596 research outputs found

    ГЕНДЕРНЕ ЛІДЕРСТВО ЯК АСПЕКТ УПРАВЛІННЯ ЕФЕКТИВНІСТЮ В МЕДІАКОМПАНІЯХ

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    The article deals with the theory of gender performativity by J. Butler in respect to gender leadership. The interpretation of this phenomenon offered by Guy Debord shows the results and stereotypes aimed at undermining the female potential of leadership. Gender inequality is particularly striking in the areas of business, management, and security and militarily services. Despite the fact that many media workers are women, most of them are against the ideas of equality, cooperation and integration. These and other problems are expressed by different viewpoints by both academics and prominent politicians. They stress that women’s access to key positions in companies, the management hierarchy, and the government of the country should be changed. Nevertheless, many questions remain unanswered, like «who is the ‘real’ democratic leader?»; «what characteristics do women leaders distinguish?»; «why is neither the neoliberal capitalist nor liberal social ideal adequate but functioning nowhere?» During the time of Ukrainian independence, these issues have not been resolved yet. At the same time, the comparison of the share of women in the total share of employers in different countries of the world shows that their share is increasing (for example, in Ukraine, this share is 31—40%). We conducted a study on the effectiveness of women’s labor in different countries. The figures are based on the share of female workers in the total structure of workers and the income generated by one woman on average. In the context of, for example, the Ukrainian economy, these indicators have declined substantially in 2008—2018, against the backdrop of a global upward trend in these indicators. Compared to Singapore, the gap between the revenue index increased by 33.4% in 2008—2018. Of all the countries cited, the worst income growth results are only in Ukraine. At the same time, the labor market of Ukraine has the following characteristics: employment of women in managerial positions in 2017 is 41.1%; the employment rate of middle and upper management women is 42.4% in 2016; the share of women in the total number of employers in 1991 was 33.1%, and in 2018 — 36.92%. Thus, gender leadership in the media sphere in Ukraine shows discrimination against women and demonstrates the impossibility of productive and effective work as a manager. However, gradually these issues will, in the context of the proposed solution, be comprehensive and will change the relationships within such companies for the better.Розглядається теорія гендерної перформативності Дж. Батлера стосовно гендерного лідерства. Інтерпретація цього явища, запропонована Гаєм Дебордом, показує результати і стереотипи, спрямовані на підрив жіночого потенціалу лідерства в управлінні. Особливо показовим явище гендерної нерівності є у сферах бізнесу, управлінської діяльності, силових структурах. Попри те, що багато працівників медіа — жінки, більшість із них виступають проти ідей рівності, співпраці та інтеграції. Про ці та інші проблеми виказують різні погляди як окремих науковців і фахівців у цій сфері, так і видатних політиків. Вони наголошують на тому, що повинні бути змінені підходи доступу жінок на ключові посади в компаніях, управлінській ієрархії, уряду країни. Тим не менш, багато питань залишаються без відповіді, як-от «хто є» справжній «демократичний лідер?»; «які характеристики відрізняють жінку-лідера?»; «чому ні неоліберальний капіталістичний, ні ліберальний соціальний ідеал не є адекватним, але ніде не функціонує?». За незалежності України вказані питання досі не вирішені. Водночас порівняння питомої ваги жінок у загальній частці роботодавців у різних країнах світу свідчить про підвищення їхньої частки (наприклад, в Україні ця вага становить 31—40 %). Ми провели дослідження ефективності використання жіночої праці в різних країнах світу. За основу використано показники частки працівників жіночої статі у загальній структурі працівників і дохід, що генерується однією жінкою в середньому. В умовах, наприклад, української економіки ці показники за 2008—2018 роки суттєво знизилися на фоні світової тенденції росту цих показників. Порівняно з Сінгапуром розрив між показником доходу зріс на 33,4 % за 2008—2018 роки. З усіх наведених країн найгірші результати зі зростання доходу тільки в Україні. У той же час ринок праці України має такі характеристики: зайнятість жінок на керівних посадах 2017 року становить 41,1 %; зайнятість жінок середнього і вищого керівництва 2016-го становить 42,4 %; частка жінок у загальній кількості роботодавців 1991 р. становить 33,1 %, а 2018-го — 36,92 %. Таким чином, гендерне лідерство в медіасфері в Україні показує дискримінацію щодо жінок і свідчить про неможливість плідної та ефективної роботи на посаді менеджера. Однак поступово ці питання в руслі запропонованого вирішення проблематики матимуть всеосяжний характер і змінять взаємовідносини усередині таких компаній на краще

    Dual Role of Sb Ions as Electron Traps and Hole Traps in Photorefractive Sn2P2S6 Crystals

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    Doping photorefractive single crystals of Sn2P2S6 with antimony introduces both electron and hole traps. In as-grown crystals, Sb3+ (5s2 ) ions replace Sn2+ ions. These Sb3+ ions are either isolated (with no nearby perturbing defects) or they have a chargecompensating Sn2+ vacancy at a nearest-neighbor Sn site. When illuminated with 633 nm laser light, isolated Sb3+ ions trap electrons and become Sb2+ (5s2 5p1 ) ions. In contrast, Sb3+ ions with an adjacent Sn vacancy trap holes during illumination. The hole is primarily localized on the (P2S6) 4− anionic unit next to the Sb3+ ion and Sn2+ vacancy. These trapped electrons and holes are thermally stable below ∼200 K, and they are observed with electron paramagnetic resonance (EPR) at temperatures below 150 K. Resolved hyperfine interactions with 31P, 121Sb, and 123Sb nuclei are used to establish the defect models

    ВПЛИВ ФІНАНСОВОЇ КРИЗИ В УКРАЇНІ 2014—2015 РОКІВ НА РІВЕНЬ ФІНАНСОВОЇ БЕЗПЕКИ БАНКІВ

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    It has been determined that commercial banks operate in a complex operational environment, which is due to the influence of a number of factors of political, social, economic, which are largely unpredictable and destructive. It is substantiated that external key parameters through which the influence on the process of providing financial security of banks is mediated. The relationship between the size of the rate of mandatory reserve requirements and the level of financial security of the bank is researched. The analysis of the state of assets, liabilities and equity capital by groups of banks during 2012—2016. The role of the central bank in regulating the activities of banks in order to ensure their financial security has been determined. The expediency of imposing sanctions on carrying out of any financial operations of banks with Russian capital in favor of parent structures was substantiated. The key problems that restrain the process of providing financial security of banks in terms of their functional components (capital-resource security, credit-investment, currency and safe level of incomes and expenditures) are determined. The methodical approach to the rating of banks estimation on the level of their financial security is offered on the basis of the analysis of indicators The stimulator / disintegrators of the analyzed banks is based on the rating rating of the bank according to the level of its financial security on the basis of comparison of j-th KB with the «standard» — the bank which The best results for each indicator are the maximum values for stimulators and the minimum for disinfectants. The rating is defined as the arithmetic mean of standardized indicators summed up in the matrix of key indicators. The necessity of grouping the analyzed banks according to their financial security level has been proved. Using the method of grouping of research objects is substantiated as an instrument for streamlining the analyzed banks. It is determined empirically, taking into account qualitative, non-formalized characteristics of four groups of banks for the p vnem their financial security (with a high level of financial security, sufficient, low and critical).Визначено, що комерційні банки функціонують у складному операційному середовищі, а це зумовлено впливом низки факторів політичних, соціальних, економічних, що здебільшого є малопрогнозованими і деструктивними. Обґрунтовано зовнішні ключові параметри, через які опосередковується вплив на процес забезпечення фінансової безпеки банків. Досліджено взаємозв’язок між розміром ставки нормативів обов’язкового резервування і рівнем фінансової безпеки банку. Проаналізовано стан активів, зобов’язань і власного капіталу за групами банків упродовж 2012—2016 рр.. Визначено роль центрального банку в регулюванні діяльності банків щодо забезпечення їхньої фінансової безпеки. Обґрунтовано доцільність запровадження НБУ санкцій на проведення будь-яких фінансових операцій банків із російським капіталом на користь материнських структур. Визначено ключові проблеми, які стримують процес забезпечення фінансової безпеки банків у розрізі і функціональних складових (капітало-ресурсної безпеки, кредитно-інвестиційної, валютної та безпечного рівня доходів і витрат. Запропоновано методичний підхід до рейтингової оцінки банків за рівнем їхньої фінансової безпеки на основі аналізу показників-стимуляторів / дестимуляторів аналізованих банків. Обґрунтовано проведення рейтингової оцінки банку за рівнем його фінансової безпеки на основі порівняння j-го КБ з «еталоном» — банком, який має найкращі результати щодо кожного показника — максимальні значення для стимуляторів і мінімальні — для дестимуляторів. Рейтинг визначено як середнє арифметичне стандартизованих показників, зведених у матрицю ключових показників. Доведено необхідність групування аналізованих банків за рівнем їхньої фінансової безпеки. Обґрунтовано використання методу групування об’єктів дослідження як інструменту упорядкування аналізованих банків. Визначено емпіричним шляхом з обліком якісних, неформалізованих характеристик чотири групи банків за рівнем їхньої фінансової безпеки (з високим рівнем фінансової безпеки, достатнім, низьким і критичним)

    Reduced Incidence of Slowly Progressive Heymann Nephritis in Rats Immunized With a Modified Vaccination Technique

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    A slowly progressive Heymann nephritis (SPHN) was induced in three groups of rats by weekly injections of a chemically modified renal tubular antigen in an aqueous medium. A control group of rats received the chemically unmodified version of the antigen in an aqueous solution. One group of SPHN rats were pre- and post-treated with weekly injections of IC made up of rKF3 and rarKF3 IgM antibody at antigen excess (MIC) (immune complexes [ICs] containing sonicated ultracentrifuged [u/c] rat kidney fraction 3 [rKF3] antigen and IgM antibodies specific against the antigen, at slight antigen excess). One group of SPHN rats were post-treated with MIC 3 weeks after the induction of the disease and one group of SPHN animals received no treatment. The control group of rats received pre- and post-treatment with sonicated u/c rKF3

    CD4 cell count and the risk of AIDS or death in HIV-Infected adults on combination antiretroviral therapy with a suppressed viral load: a longitudinal cohort study from COHERE.

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    BACKGROUND: Most adults infected with HIV achieve viral suppression within a year of starting combination antiretroviral therapy (cART). It is important to understand the risk of AIDS events or death for patients with a suppressed viral load. METHODS AND FINDINGS: Using data from the Collaboration of Observational HIV Epidemiological Research Europe (2010 merger), we assessed the risk of a new AIDS-defining event or death in successfully treated patients. We accumulated episodes of viral suppression for each patient while on cART, each episode beginning with the second of two consecutive plasma viral load measurements 500 copies/µl, the first of two consecutive measurements between 50-500 copies/µl, cART interruption or administrative censoring. We used stratified multivariate Cox models to estimate the association between time updated CD4 cell count and a new AIDS event or death or death alone. 75,336 patients contributed 104,265 suppression episodes and were suppressed while on cART for a median 2.7 years. The mortality rate was 4.8 per 1,000 years of viral suppression. A higher CD4 cell count was always associated with a reduced risk of a new AIDS event or death; with a hazard ratio per 100 cells/µl (95% CI) of: 0.35 (0.30-0.40) for counts <200 cells/µl, 0.81 (0.71-0.92) for counts 200 to <350 cells/µl, 0.74 (0.66-0.83) for counts 350 to <500 cells/µl, and 0.96 (0.92-0.99) for counts ≥500 cells/µl. A higher CD4 cell count became even more beneficial over time for patients with CD4 cell counts <200 cells/µl. CONCLUSIONS: Despite the low mortality rate, the risk of a new AIDS event or death follows a CD4 cell count gradient in patients with viral suppression. A higher CD4 cell count was associated with the greatest benefit for patients with a CD4 cell count <200 cells/µl but still some slight benefit for those with a CD4 cell count ≥500 cells/µl

    Factors associated with paradoxical immune response to antiretroviral therapy in HIV infected patients: a case control study

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    <p>Abstract</p> <p>Background</p> <p>A paradoxical immunologic response (PIR) to Highly Active Antiretroviral Therapy (HAART), defined as viral suppression without CD4 cell-count improvement, has been reported in the literature as 8 to 42%, around 15% in most instances. The present study aims to determine, in a cohort of HIV infected patients in Brazil, what factors were independently associated with such a discordant response to HAART.</p> <p>Methods</p> <p>A case-control study (1:4) matched by gender was conducted among 934 HIV infected patients on HAART in Brazil. Cases: patients with PIR, defined as CD4 < 350 cells/mm<sup>3 </sup>(hazard ratio for AIDS or death of at least 8.5) and undetectable HIV viral load on HAART for at least one year. Controls: similar to cases, but with CD4 counts ≥ 350 cells/mm<sup>3</sup>. Eligibility criteria were applied. Data were collected from medical records using a standardized form. Variables were introduced in a hierarchical logistic regression model if a p-value < 0.1 was determined in a bivariate analysis.</p> <p>Results</p> <p>Among 934 patients, 39 cases and 160 controls were consecutively selected. Factors associated with PIR in the logistic regression model were: total time in use of HAART (OR 0.981; CI 95%: 0.96-0.99), nadir CD4-count (OR 0.985; CI 95%: 0.97-0.99), and time of undetectable HIV viral load (OR 0.969; CI 95%: 0.94-0.99).</p> <p>Conclusions</p> <p>PIR seems to be related to a delay in the management of immunodeficient patients, as shown by its negative association with nadir CD4-count. Strategies should be implemented to avoid such a delay and improve the adherence to HAART as a way to implement concordant responses.</p

    Associations of modern initial antiretroviral drug regimens with all-cause mortality in adults with HIV in Europe and North America: a cohort study

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    Background: Over the past decade, antiretroviral therapy (ART) regimens that include integrase strand inhibitors (INSTIs) have become the most commonly used for people with HIV starting ART. Although trials and observational studies have compared virological failure on INSTI-based with other regimens, few data are available on mortality in people with HIV treated with INSTIs in routine care. Therefore, we compared all-cause mortality between different INSTI-based and non-INSTI-based regimens in adults with HIV starting ART from 2013 to 2018. Methods: This cohort study used data on people with HIV in Europe and North America from the Antiretroviral Therapy Cohort Collaboration (ART-CC) and UK Collaborative HIV Cohort (UK CHIC). We studied the most common third antiretroviral drugs (additional to nucleoside reverse transcriptase inhibitor) used from 2013 to 2018: rilpivirine, darunavir, raltegravir, elvitegravir, dolutegravir, efavirenz, and others. Adjusted hazard ratios (aHRs; adjusted for clinical and demographic characteristics, comorbid conditions, and other drugs in the regimen) for mortality were estimated using Cox models stratified by ART start year and cohort, with multiple imputation of missing data. Findings: 62 500 ART-naive people with HIV starting ART (12 422 [19·9%] women; median age 38 [IQR 30–48]) were included in the study. 1243 (2·0%) died during 188 952 person-years of follow-up (median 3·0 years [IQR 1·6–4·4]). There was little evidence that mortality rates differed between regimens with dolutegravir, elvitegravir, rilpivirine, darunavir, or efavirenz as the third drug. However, mortality was higher for raltegravir compared with dolutegravir (aHR 1·49, 95% CI 1·15–1·94), elvitegravir (1·86, 1·43–2·42), rilpivirine (1·99, 1·49–2·66), darunavir (1·62, 1·33–1·98), and efavirenz (2·12, 1·60–2·81) regimens. Results were similar for analyses making different assumptions about missing data and consistent across the time periods 2013–15 and 2016–18. Rates of virological suppression were higher for dolutegravir than other third drugs. Interpretation: This large study of patients starting ART since the introduction of INSTIs found little evidence that mortality rates differed between most first-line ART regimens; however, raltegravir-based regimens were associated with higher mortality. Although unmeasured confounding cannot be excluded as an explanation for our findings, virological benefits of first-line INSTIs-based ART might not translate to differences in mortality. Funding: US National Institute on Alcohol Abuse and Alcoholism and UK Medical Research Council

    Enhancing Nanoparticle-Based Visible Detection by Controlling the Extent of Aggregation

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    Visible indication based on the aggregation of colloidal nanoparticles (NPs) is highly advantageous for rapid on-site detection of biological entities, which even untrained persons can perform without specialized instrumentation. However, since the extent of aggregation should exceed a certain minimum threshold to produce visible change, further applications of this conventional method have been hampered by insufficient sensitivity or certain limiting characteristics of the target. Here we report a signal amplification strategy to enhance visible detection by introducing switchable linkers (SLs), which are designed to lose their function to bridge NPs in the presence of target and control the extent of aggregation. By precisely designing the system, considering the quantitative relationship between the functionalized NPs and SLs, highly sensitive and quantitative visible detection is possible. We confirmed the ultrahigh sensitivity of this method by detecting the presence of 20 fM of streptavidin and fewer than 100 CFU/mL of Escherichia coli
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