1,204 research outputs found
УДОСКОНАЛЕННЯ ФІНАНСОВОГО НАГЛЯДУ НА ОСНОВІ ВПРОВАДЖЕННЯ МІЖНАРОДНИХ ПРИНЦИПІВ
The article is devoted to the problem of financial supervision system compliance in the countries with the international principles and the best world practices.
The main international principles of effective banking supervision, insurance and regulation of the securities market are analyzed.
We developed a scientific and methodological approach to assessing the country's financial supervision compliance with international principles, which allows to determine the dynamics of development and improvement of financial supervision in banking, insurance and securities segments of the financial sector. A scale for translating financial supervisory compliance assessments into international principles was developed and statistical tools of arithmetic weighted and geometric mean were used to summarize the implementation of Core Principles for Effective Banking Supervision, Insurance Core Principles and Objectives and Principles of Securities Regulation.
The average level the implementation of each of the principles of Effective Banking Supervision, Insurance Core Principles and Objectives and Principles of Securities Regulation is determined. Banking Supervision has been assessed to international principles in countries such as Austria, Bulgaria, Canada, Germany, Denmark, United Kingdom, Georgia, Hong Kong, Republic of Korea, Moldova, New Zealand, Russian Federation, Turkey, United States of America, South Africa, Insurance Supervision — Canada, Denmark, Hong Kong, Ireland, New Zealand, Turkey, United States of America, South Africa, securities market surveillance and financial supervision in general — Canada, Hong Kong, United States of America, South Africa. The work identifies key areas of modern and innovative development of the financial supervision system.
The paper identifies key areas of modern and innovative development of the financial supervision. Our results showed that increasing the compliance of financial supervision with international standards can be ensured primarily through the introduction of risk-oriented financial supervision, improvement of corporate governance and disclosure of financial reporting by financial intermediaries.Розглянуто питання відповідності системи фінансового нагляду в країнах світу міжнародним принципам фінансового нагляду i найкращим світовим практикам.
Проаналізовано основні принципи ефективного банківського нагляду, страхування i регулювання ринку цінних паперів. Розроблено науково-методичний підхід до оцінювання відповідності фінансового нагляду країни міжнародним принципам, що дозволяє визначати динаміку розбудови і поліпшення фінансового нагляду в різних сегментах фінансового сектору — банківському, страховому та цінних паперів. Для узагальненого оцінювання впровадження Основних принципів ефективного банківського нагляду, Ключових принципів страхування та Цілей і принципів регулювання цінних паперів розроблено шкалу переведення оцінок відповідності фінансового нагляду міжнародним принципам у бали та використано статистичний інструментарій середньої арифметичної зваженої та середньої геометричної
Визначено середній рівень дотримання кожного з принципів ефективного банківського нагляду, страхування і регулювання ринку цінних паперів. Здійснено оцінювання відповідності банківського нагляду міжнародним принципам у таких країнах, як Австрія, Болгарія, Канада, Німеччина, Данія, Велика Британія, Грузія, Гонконг, Республіка Корея, Молдова, Нова Зеландія, Російська Федерація, Туреччина, Сполучені Штати Америки, Південна Африка, страхового нагляду — Канада, Данія, Гонконг, Ірландія, Нова Зеландія, Туреччина, Сполучені Штати Америки, Південна Африка, нагляду на ринку цінних паперів і фінансового нагляду в цілому — Канада, Гонконг, Сполучені Штати Америки, Південна Африка. Ідентифіковано ключові напрями сучасного та інноваційного розвитку системи фінансового нагляду.
Визначено, що підвищення відповідності фінансового нагляду міжнародним стандартам може бути забезпечене передусім за рахунок упровадження ризик-орієнтованого фінансового нагляду, удосконалення корпоративного управління та розкриття фінансової звітності фінансових посередників
Underdiagnosis of mild cognitive impairment: A consequence of ignoring practice effects
INTRODUCTION: Longitudinal testing is necessary to accurately measure cognitive change. However, repeated testing is susceptible to practice effects, which may obscure true cognitive decline and delay detection of mild cognitive impairment (MCI).
METHODS: We retested 995 late-middle-aged men in a ∼6-year follow-up of the Vietnam Era Twin Study of Aging. In addition, 170 age-matched replacements were tested for the first time at study wave 2. Group differences were used to calculate practice effects after controlling for attrition effects. MCI diagnoses were generated from practice-adjusted scores.
RESULTS: There were significant practice effects on most cognitive domains. Conversion to MCI doubled after correcting for practice effects, from 4.5% to 9%. Importantly, practice effects were present although there were declines in uncorrected scores.
DISCUSSION: Accounting for practice effects is critical to early detection of MCI. Declines, when lower than expected, can still indicate practice effects. Replacement participants are needed for accurately assessing disease progression.Published versio
Characterization of complex fractionated atrial electrograms by sample entropy: An international multi-center study
Atrial fibrillation (AF) is the most commonly clinically-encountered arrhythmia. Catheter ablation of AF is mainly based on trigger elimination and modification of the AF substrate. Substrate mapping ablation of complex fractionated atrial electrograms (CFAEs) has emerged to be a promising technique. To improve substrate mapping based on CFAE analysis, automatic detection algorithms need to be developed in order to simplify and accelerate the ablation procedures. According to the latest studies, the level of fractionation has been shown to be promisingly well estimated from CFAE measured during radio frequency (RF) ablation of AF. The nature of CFAE is generally nonlinear and nonstationary, so the use of complexity measures is considered to be the appropriate technique for the analysis of AF records. This work proposes the use of sample entropy (SampEn), not only as a way to discern between non-fractionated and fractionated atrial electrograms (A-EGM), but also as a tool for characterizing the degree of A-EGM regularity, which is linked to changes in the AF substrate and to heart tissue damage. The use of SampEn combined with a blind parameter estimation optimization process enables the classification between CFAE and non-CFAE with statistical significance (p < 0:001), 0.89 area under the ROC, 86% specificity and 77% sensitivity over a mixed database of A-EGM combined from two independent CFAE signal databases, recorded during RF ablation of AF in two EU countries (542 signals in total). On the basis of the results obtained in this study, it can be suggested that the use of SampEn is suitable for real-time support during navigation of RF ablation of AF, as only 1.5 seconds of signal segments need to be analyzed
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Human Verbal Memory Encoding Is Hierarchically Distributed in a Continuous Processing Stream.
Processing of memory is supported by coordinated activity in a network of sensory, association, and motor brain regions. It remains a major challenge to determine where memory is encoded for later retrieval. Here, we used direct intracranial brain recordings from epilepsy patients performing free recall tasks to determine the temporal pattern and anatomical distribution of verbal memory encoding across the entire human cortex. High γ frequency activity (65-115 Hz) showed consistent power responses during encoding of subsequently recalled and forgotten words on a subset of electrodes localized in 16 distinct cortical areas activated in the tasks. More of the high γ power during word encoding, and less power before and after the word presentation, was characteristic of successful recall and observed across multiple brain regions. Latencies of the induced power changes and this subsequent memory effect (SME) between the recalled and forgotten words followed an anatomical sequence from visual to prefrontal cortical areas. Finally, the magnitude of the memory effect was unexpectedly found to be the largest in selected brain regions both at the top and at the bottom of the processing stream. These included the language processing areas of the prefrontal cortex and the early visual areas at the junction of the occipital and temporal lobes. Our results provide evidence for distributed encoding of verbal memory organized along a hierarchical posterior-to-anterior processing stream
Electrical Stimulation Modulates High γ Activity and Human Memory Performance.
Direct electrical stimulation of the brain has emerged as a powerful treatment for multiple neurological diseases, and as a potential technique to enhance human cognition. Despite its application in a range of brain disorders, it remains unclear how stimulation of discrete brain areas affects memory performance and the underlying electrophysiological activities. Here, we investigated the effect of direct electrical stimulation in four brain regions known to support declarative memory: hippocampus (HP), parahippocampal region (PH) neocortex, prefrontal cortex (PF), and lateral temporal cortex (TC). Intracranial EEG recordings with stimulation were collected from 22 patients during performance of verbal memory tasks. We found that high γ (62-118 Hz) activity induced by word presentation was modulated by electrical stimulation. This modulatory effect was greatest for trials with poor memory encoding. The high γ modulation correlated with the behavioral effect of stimulation in a given brain region: it was negative, i.e., the induced high γ activity was decreased, in the regions where stimulation decreased memory performance, and positive in the lateral TC where memory enhancement was observed. Our results suggest that the effect of electrical stimulation on high γ activity induced by word presentation may be a useful biomarker for mapping memory networks and guiding therapeutic brain stimulation
False Reports from Patients with Frontotemporal Dementia: Delusions or Confabulations?
Patients with behavioral variant frontotemporal dementia (bvFTD) can make false statements consistent with delusions or confabulations. It is unclear whether bvFTD is primarily associated with either delusions or with confabulations and whether they can be explained by the pathophysiology of this disease. In order to clarify this, we retrospectively surveyed the records of 48 patients with bvFTD for the presence of any false reports and identified four patients. Their false reports included continued interaction with a favorite but dead relation, fictitious marriages with movie stars, and two who claimed that their partner was having an affair. When confronted with the falsity of their statements, the patients conveyed a lack of certainty regarding their external or internal source but persisted in the constancy of their reports. On functional neuroimaging, the patients had predominant frontal involvement. This report found that patients with bvFTD can have both fantastic, wish fulfilling confabulations and typical content-specific delusions. We propose that both phenomena result from known disturbances of ventromedial prefrontal cortex in bvFTD, including deficits in source monitoring and in activating an automatic “doubt tag” for false reports
Mapping species distributions: A comparison of skilled naturalist and lay citizen science recording
To assess the ability of traditional biological recording schemes and lay citizen science approaches to gather data on species distributions and changes therein, we examined bumblebee records from the UK’s national repository (National Biodiversity Network) and from BeeWatch. The two recording approaches revealed similar relative abundances of bumblebee species but different geographical distributions. For the widespread common carder (Bombus pascuorum), traditional recording scheme data were patchy, both spatially and temporally, reflecting active record centre rather than species distribution. Lay citizen science records displayed more extensive geographic coverage, reflecting human population density, thus offering better opportunities to account for recording effort. For the rapidly spreading tree bumblebee (Bombus hypnorum), both recording approaches revealed similar distributions due to a dedicated mapping project which overcame the patchy nature of naturalist records. We recommend, where possible, complementing skilled naturalist recording with lay citizen science programmes to obtain a nation-wide capability, and stress the need for timely uploading of data to the national repository
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