Digital Bank Research Articles

Abstract OT1-03-01: The UK LORIS trial: Randomizing patients with low or low intermediate grade ductal carcinoma in situ (DCIS) to surgery or active monitoring

Abstract Background: The independent review of the UK National Health Service Breast Screening Programme reported (The Lancet, Volume 380, Issue 9855, Page 1778, 17 Nov 2012) on the benefits and harms of breast screening. It concluded that breast screening saves lives and acknowledged the existence of overtreatment. It encouraged randomized trials to elucidate the appropriate treatment of screen-detected DCIS to gain a better understanding of its natural history. The LORIS trial addresses the possible overtreatment of low and low/intermediate grade screen-detected (low risk) DCIS by randomizing patients to standard surgical treatment or active monitoring, each with long term follow up. Trial Design: LORIS is a phase III, multicentre, 2 arm study, with a built in 2 year Feasibility Phase, in patients confirmed to have low risk DCIS defined by strict criteria and determined by central pathology review. Patients will be randomized between standard surgery and active monitoring with annual mammography. Patients will be followed up for a minimum of 10 years. Eligibility Criteria: 1) Female, age ≥ 46 years 2) Screen-detected or incidental microcalcification (with no mass lesion clinically or on imaging) 3) Low risk DCIS on large volume vacuum-assisted biopsy, confirmed by central pathology review 4) Patient fit to undergo surgery 5) No previous breast cancer or ipsilateral DCIS diagnosis 6) Written informed consent Specific Aims: The LORIS Trial aims to establish whether patients with newly diagnosed low risk DCIS can safely avoid surgery without detriment to their wellbeing (psychological and physical) and whether those patients that do require surgery can be identified by pathological and radiological means. Primary endpoint: Ipsilateral invasive breast cancer free survival time Secondary endpoints: Overall survival; mastectomy rate; time to mastectomy; time to surgery; patient reported outcomes; health resource utilisation and assessment of predictive biomarkers. A digital image data repository and tissue bank will provide a prospective resource for both translational and imaging studies. Statistical Methods: A total of 932 patients will be randomized to a non-inferiority design to test the null hypothesis that active monitoring of women diagnosed with low risk DCIS is not non-inferior in terms of ipsilateral invasive breast cancer free survival (iiBCFS) time compared to treatment with surgery. The iiBCFS time will be compared across the two arms on a per protocol and intent-to-treat basis, using a 1-sided (α=0.05) log-rank test for non-inferiority. The iiBCFS rate is assumed to be 97.5% in the surgery arm at 5 years, utilizing 80% power to exclude a difference of more than 2.5% in the active monitoring arm. Present Accrual and Target Accrual: 32 UK centres are open for the Feasibility Phase of the trial which is nearing completion. The web-based central pathology review process is functioning efficiently, with a one week maximum turn around. Registrations and sites randomizing patients are on or above target. Randomizations are currently approximately 70% of target. A total of 60 centres will open in the main trial. Contact Information: For further information, please email the LORIS Trial Office LORIS@trials.bham.ac.uk. Citation Format: Francis A, Bartlett J, Billingham L, Bowden S, Brookes C, Dodwell D, Evans A, Fairbrother P, Fallowfield L, Gaunt C, Hanby A, Jenkins V, Matthews L, Pinder S, Pirrie S, Rea D, Reed M, Roberts T, Thomas J, Wallis M, Wilcox M, Young J. The UK LORIS trial: Randomizing patients with low or low intermediate grade ductal carcinoma in situ (DCIS) to surgery or active monitoring [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT1-03-01.

Everyday narratives: CEO rhetoric on Twitter

PurposeThis paper investigates the everyday CEO communication in social media, with particular focus on Twitter. The purpose of this paper is to contribute with insights into how expectations on corporate leaders to be present in social media are translated into everyday communication practice and thereby add to literature on narrative leadership.Design/methodology/approachA content analysis of the Twitter feed of Håkan Nygren, the CEO of the Swedish digital bank Nordnet. In order to answer the question – what are the stories and the rhetoric of a CEO in the banking sector an ordinary day? – the data set covers the totality of tweets by Nygren from 10 April 2013 to 31 December 2015.FindingsThe everyday Twitter narrative of Nyberg challenges established ideas of social media about personalised tone and interactions by highlighting three characteristics: limited scope of actors and content including the local Nordnet sphere, a formal tone in the tweets mainly based on corporate information and presentation, and few examples of dialogue and a limited number of voices outside of Nordnet. The data set of Nyberg’s Twitter feed during a period without any major events or crises for Nordnet paints a picture of a rather non-personal CEO with limited ideas on his mind to share online and with few friends.Originality/valueStudies on social media and corporate communication have largely focussed on organisational crises. This study focuses on everyday narratives of managers and proves that the role of social media must be interpreted more broadly and as playing multiple roles, and that these roles are changing due to time and situation.

High-accuracy current measurement with low-cost shunts by means of dynamic error correction

Abstract. Measurement of electrical current is often performed by using shunt resistors. Thermal effects due to self-heating and ambient temperature variation limit the achievable accuracy, especially if low-cost shunt resistors with increased temperature coefficients are utilized. In this work, a compensation method is presented which takes static and dynamic temperature drift effects into account and provides a significant reduction of measurement error. A thermal model of the shunt resistor setup is derived for this purpose and a suitable calibration method is developed. The correction algorithm is based upon a digital filter bank and is optimized for microcontrollers with low computational complexity. It is implemented in laboratory test equipment for long-term studies on automotive lithium-ion cells. For a 600 A current pulse, it reduces the measurement error from 2 % to less than 0.1 %. Measurements with a real-life testing profile show a reduction of remaining measurement error by 60 %. Statistical results for 100 test systems and long-term drift measurements prove the reliability of the method. The proposed dynamic error correction algorithm therefore allows high measurement accuracy despite the use of low-cost shunt resistors.

Escolarização de jovens e adultos com deficiência nas pesquisas de pós-graduação no período de 2009 a 2015

A inclusão escolar requer o estreitamento nas relações entre a Educação de Jovens e Adultos e a Educação Especial. O estreitamento nessa relação exige um movimento contínuo de reflexão, análise e discussão, materializadas por meio de pesquisas e produção do conhecimento. Neste sentido, o presente artigo tem por objetivo averiguar as pesquisas realizadas no Brasil, após a promulgação, em 2008, da Política de Educação Especial na perspectiva da Educação Inclusiva, no que tange a escolarização de alunos com deficiência na Educação de Jovens e Adultos. Para atingir o objetivo, foi realizada pesquisa bibliográfica por meio de levantamento nas bases da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) e Banco Digital de Teses e Dissertações (BDTD). Nas buscas verificaram-se as teses e dissertações publicadas no período de janeiro de 2009 a setembro de 2015, utilizando os seguintes descritores: educação de jovens e adultos; deficiência; educação especial; inclusão escolar. Após levantamento realizado, foram localizadas sete dissertações e três teses, que apontam em seus resultados a predominância de relatos acerca da fragilidade das estruturas na Educação de Jovens e Adultos para o atendimento educacional a pessoas com deficiência, bem como as dificuldades vivenciadas para oferecer atividades acadêmicas efetivamente enriquecedoras e eficazes para a inclusão destes jovens e adultos. Evidenciou-se ainda que a inclusão de alunos com deficiência na Educação de Jovens e Adultos é um tema novo que apresenta literatura escassa, tornando-o além de relevante nacionalmente, oportuno no contexto da construção do cenário educacional das escolas inclusivas.

Signal classification and software–hardware implementation of digital filter banks based on field-programmable gate arrays and compute unified device architecture

The paper is devoted to handling wideband monitoring tasks by discrete Fourier transform (DFT) modulated filter banks. Filter bank implementation is considered using CPU (Central Processing Unit) and CUDA (Compute Unified Device Architecture) based on GPUs (Graphics Processing Units). We show that CUDA is more efficient for big signal sets due to low temporal and computational costs. The paper also discusses signal classification in filter bank channels for different signal-to-noise ratios using binary decision trees (with the iterative Adaboost procedure) and neural networks. The total classification error in our experiments does not exceed 10%. The results can be extended and applied to hydroacoustic monitoring tasks.

Abstract OT2-02-04: The LORIS trial: A multicentre, randomised phase III trial of standard surgery versus active monitoring in women with newly diagnosed low risk ductal carcinoma in situ

Abstract Background: The independent review of the UK National Health Service Breast Screening Programme reported (The Lancet, Volume 380, Issue 9855, Pages 1778 - 1786, 17 November 2012) on the benefits & harms of breast screening. It concluded that breast screening saves lives & acknowledged overtreatment. It encouraged randomized trials to elucidate the appropriate treatment of screen-detected ductal carcinoma in situ (DCIS) to gain a better understanding of its natural history. The LORIS trial addresses overtreatment of low & low/Intermediate grade screen detected (low risk) DCIS by randomizing patients to standard surgical treatment or active monitoring. Trial Design: LORIS is a phase III, multicentre, 2 arm study, with a 2 year feasibility phase, in patients confirmed to have low risk DCIS by central pathology review. Patients are randomised to standard surgery or active monitoring with annual mammography. Patients will be followed up for a minimum of 10 years. Key Eligibility Criteria: 1) Female 46 years or over. 2) Screen-detected or incidental microcalcification (with no mass lesion clinically or on imaging) 3) Low risk DCIS on large volume vacuum-assisted biopsy, confirmed by central pathology review 4) Patient fit to undergo surgery Specific Aims: The LORIS Trial aims to establish whether patients with newly diagnosed low risk DCIS can safely avoid surgery without detriment to their wellbeing (psychological and physical) & whether those patients that do require surgery can be identified by pathological and radiological means. Primary endpoint: Ipsilateral invasive breast cancer free survival rate at 5 years Secondary endpoints: Overall survival; mastectomy rate; time to mastectomy; time to surgery; patient reported outcomes & health resource utilisation. A digital image data repository and tissue bank provide a prospective resource for both translational & imaging studies. Statistical Methods: A total of 932 patients will be randomized to a non-inferiority design to test the null hypothesis that active monitoring of women diagnosed with low risk DCIS is not non-inferior in terms of 5 year ipsilateral invasive breast cancer free survival (iiBCFS) rate compared to treatment with surgery. The iiBCFS rate will be compared across the two arms on a per protocol and intent-to-treat basis, using a 1-sided (α=0.05) log-rank test for non-inferiority. The iiBCFS rate is assumed to be 97.5% in the surgery arm giving 80% power to exclude a difference of more than 2.5% in the active monitoring arm at 5 years. Present Accrual and Target Accrual: 21 UK centres are open & the feasibility phase of the trial is recruiting to target. The web based central pathology review process is functioning well with a one week maximum turn around. A further 40 centres will be opened on completion of the feasibility phase. Contact: LORIS@trials.bham.ac.uk This project was funded by the National Institute for Health Research [Health Technology Assessment Programme] (project number 11/36/16) Department of Health Disclaimer: The views & opinions expressed therein are those of the authors & do not necessarily reflect those of the Health Technology Assessment Programme, NIHR, NHS or the Department of Health. Citation Format: Francis A, Fallowfield L, Bartlett J, Thomas J, Wallis M, Hanby A, Pinder S, Evans A, Billingham L, Brookes C, Dodwell D, Fairbrother P, Gaunt C, Jenkins V, Matthews L, Pirrie S, Reed M, Roberts T, Wilcox M, Young J, Rea D. The LORIS trial: A multicentre, randomised phase III trial of standard surgery versus active monitoring in women with newly diagnosed low risk ductal carcinoma in situ. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr OT2-02-04.

Transmultiplexer filter bank systems: a research overview

During last two decades, an extensive research has been carried out for the design and development of digital filter banks. These systems operate in two modes, i.e. either in analysis/synthesis mode or synthesis/analysis mode. First case corresponds to filter banks, in which input signal is decomposed into two or more signals. Second case corresponds to transmultiplexer systems, where several signals are transferred through a single channel. Transmultiplexer is a foremost module of multicarrier communication scheme, which is obtained by reversing the role of analysis and synthesis filters in the filter banks. They are often used in channel coding application in communication, and are also referred as a multi-input, multi-output system that uses sampling rate alteration and filtering to combine M signals for transmission across a channel, and then recovers the M input signals. This paper presents a comprehensive overview of transmultiplexer systems: analysis and design techniques of transmultiplexer systems. Finally, some concluding remarks about current and future research in transmultiplexer systems are presented.

Simulation of digital filter banks and signal classification in wideband monitoring tasks

The paper is devoted to handling radio monitoring tasks (wideband monitoring tasks) in real time. We suggest a new multichannel modification of the weighted overlap-add algorithm (WOLA-algorithm) for processing vector (multichannel) signals and performing multichannel signal classification. Filter bank implementation is considered using computers based on the CUDA (Compute Unified Device Architecture) technology. We show that CUDA is efficient for large signal sets due to its low temporal costs. We study signal classification in filter bank channels for different signal-tonoise ratios using binary decision trees, the iterative procedure Adaboost, and neural networks. Our experiments provided a total classification error less than 10%.

Design and Implementation of Digital Filter Bank to Reduce Noise and Reconstruct the Input Signals

Design and Implementation of Digital Filter Bank to Reduce Noise and Reconstruct the Input Signals

Flexible Low Complexity Uniform and Nonuniform Digital Filter Banks With High Frequency Resolution for Multistandard Radios

Multistandard radios typically employ digital filter banks (FBs) for channelization of wideband input signals consisting of multiple radio channels corresponding to different wireless communication standards. In this paper, we propose a new design technique to obtain uniform as well as nonuniform digital FBs for multistandard channelization. In the proposed FB design technique, the improved coefficient decimation method (ICDM) is used to obtain different low-pass, high-pass, and multiband frequency responses using a single low-pass prototype filter. These frequency responses are algebraically operated upon using appropriate spectral subtraction, complementary filter response operation, and frequency response masking operations to obtain the desired sub-bands in the FB. With the help of suitable design examples, we show that our FB is a low complexity and flexible alternative to the other digital FBs in the literature, in both uniform and nonuniform channelization scenarios. The proposed ICDM-based FB is shown to be able to achieve a higher number of distinctly located sub-bands with twice the center frequency resolution when compared with the discrete Fourier transform-based FB (DFTFB) and the conventional coefficient decimation method-based FB (CDFB). For a uniform channelization design example for wireless communications, implementation results show that the proposed ICDM-based FB achieves 70.92% and 15.49% reductions in resource utilizations and 58.72% and 23.13% reductions in power consumptions when compared with the DFTFB and CDFB respectively. Also, for a nonuniform channelization design example for wireless communications, the proposed ICDM-based FB shows an 11.46% reduction in multiplication complexity when compared with the CDFB.

Digital filter bank implementation in hydroacoustic monitoring tasks

The paper discusses digital filter bank implementation using the weighted overlap-add (WOLA) algorithm modification introduced in the context of multichannel signal processing. The suggested modification is applied to hydroacoustic monitoring tasks. High-performance software- hardware implementations on the basis of CPU (Central Processing Unit) and CUDA (Compute Unified Device Architecture) are compared and CUDA is shown to provide advantages for the filter banks studied. Streszczenie. W artykule przedstawiono implementacje banku filtrow cyfrowych opartych na algorytmie Weighted Overlap-Add (WOLA), zmodyfikowanego w kontekście przetwarzania sygnalu wielokanalowego. Zaproponowane modyfikacje zostaly zastosowane w hydroakustycznych zadaniach monitorowania. Dokonano porownania wysokowydajnych programowo-sprzetowych implementacji opartych na CPU (Central Processing Unit) oraz CUDA (Compute i Unified Device Architecture). Badania wykonane dla zdefiniowanego banku filtrow pokazaly, ze najbardziej korzystne jest zastosowanie CUDA. (Implementacja banku filtrow w hydroakustycznych zadaniach monitorowania).

Highly effective spectral output through significant improvement in stopband attenuation by sample modification technique in multirate processing

The digital spectral analysis is of prime consideration for effective reception and analysis of signals with improved spectral characteristics with simple techniques. For this purpose, this paper presents a novel technique in digital bandpass filter bank by Modified Kaiser window based finite impulse response method in multirate processing. The finite impulse response method results in better passband and stopband response in addition to precise control over phase response. This novel technique is more effective in the proposed method in the sense that it allows the modification of samples of input signal in order to derive the advantages in respect of selectivity, stopband attenuation, peak output apart from smooth response in spectral output as compared to the existing methods. Further, with improved features of passband characteristic and spectral efficiency, the proposed method of spectral analysis is better suitable for most of real-time applications, especially in digital hearing aids.

Municipal Solid Waste Management in Russia: Practices and Challenges

It is annually produced 400 thousand tons of solid waste in the city of Rostov-on-Don, which is taken for disposal to landfill at the Northwest industrial area of the city. Nearly 60 tons of waste enters Rostov Material Recovery Facility every year for the sorting, extracting commercially attractive factions, pressing, briquetting and subsequent transportation of residue tail to the landfill. However, the percentage of recycling in Rostov (10%) remains low, as a result of the shortcomings of the system. Recently, the Administration of Rostov-on-Don has produced a development strategy of integrated municipal solid waste management to create a new system of waste management in Rostov-on-Don. The strategy focuses mainly at Resource efficiency, which is a blend of good infrastructure, collection and design, with a dash of innovation and a strong policy framework to back it up. For the successful implementation of the strategy it is necessary to introduce an integrated system of municipal solid waste management using GIS. The methodology of integrated system with using GIS was developed by specialists of City Planning and Community Development Department of the Rostov State University of Civil Engineering. It includes implementation of collection and storage of waste and environmental data along with vehicles navigation system through ArcGIS ESRI software. It helps to facilitate collection operations, to analyze optimal locations for transfer stations, to plan routes for vehicles transporting waste from residential, commercial and industrial customers to transfer stations and from transfer stations to landfills, to calculate amount of waste collection sites in accordance with the population density and volume of bins, to locate new landfills and to monitor the landfill. GIS is a tool that also provides a digital data bank for optimization of waste collection sites allocation according with implementation of General City Plan. The territory of Rostov-on-Don has been chosen for case study. GIS allowed to make situational (operational) decisions for implementing the strategic approach to the municipal solid waste management plan of the city and supported innovative accompaniment of the process of development and implementation of priority national projects, targeted programs of ecological reconstruction and strategic plans of socio-economic development of municipalities.

Systematic review; Nutritional therapy in gestational diabetes mellitus.

Several methods of dietetic counseling can be used in the nutritional therapy in gestational diabetes mellitus (GDM). The main methods are the traditional method (TM) and the carbohydrate counting (CCM). Presenting a systematic review of the literature on the impact of nutritional therapy in GDM, through TM and CCM, evaluating the results for maternal and child health. We searched databases PubMed, Scopus, Web of Science, Lilacs and CAPES Digital Bank of Thesis. The methodological quality of all the studies included was made using the Jadad score. We have found five studies that evaluated the effects of nutritional therapy, through the TM, on the maternal and child health. None study evaluating the CCM was detected in pregnant women with GDM Nutritional therapy given during antenatal care was effective in reducing pregnancy complications (preeclampsia, excessive gestational weight gain, necessity for cesarean delivery, for insulin therapy and for shoulder dystocia), perinatal complications (macrosomia, neonatal hypoglycemia, and birth weight) and also in better glycemic control. The use of nutritional therapy should be highlighted within the antenatal care for pregnant women with GDM, giving the satisfactory results on metabolic control and on pregnancy outcomes. Studies examining the CCM to GDM patients should be conducted to show its effects on maternal and child health.

Guest Editorial: Advanced Techniques for Efficient Electronic System Design

This special section in Circuits, Systems, and Signal Processing on Electronic System Design (CSSP) contains five papers which present highly interesting state of the art methodologies and circuits relating to different important aspects of electronic system design including the multi-standard communication, digital watermarking, memory integrity detection and protection in embedded systems, information security in systems on chips (SoC), and elliptic curve cryptography (ECC). Channelization is an essential computation-intensive function for multi-standard communication. The paper entitled “A Low-Complexity Uniform and Non-uniform Digital Filter Bank Based on an Improved Coefficient Decimation Method for MultiStandard Communication Channelizers” by Ambede et al. provides an efficient lowcomplexity solution for this important function. In this paper, the authors present a novel filter bank (FB) design technique based on the combination of the conventional coefficient decimation method (CDM) and the recently proposed modified coefficient decimation method. It is shown that the proposed FB has superior stop band and transition band characteristics, and involves significantly lower complexity compared with the conventional CDM-based progressive decimation filter bank (PDFB). The proposed approach provides uniform as well as non-uniform subbands to be used

Bio-Inspired Hybrid Filter Bank for Software-Defined Radio Receivers

For an efficient exploitation of the RF spectrum, very sophisticated analog-to-digital front-ends for modern cognitive-/software-defined radios featuring high sampling rate and dynamic range are required to properly handle broadband frequency-sparse signals. For this purpose, a receiver solution based on a mixed-analog/digital-domain channelizer can be advantageous, with added benefits regarding system reconfigurability and parallelization of multiband signal processing. Here, a novel receiver architecture using this approach for the commented application is described, with a special focus on the IF hybrid filter bank as its core element. The analog part of the hybrid filter bank is a 50–100-MHz eight-channel analog multiplexer inspired in the human hearing system. The associated digital block can be co-synthesized as a discrete-time filter bank to invert the action of the IF analog channelizer. As a benefit, hardware imperfections inherent to the analog circuitry can be easily counteracted at the digital level. Furthermore, such a channelization enables low-cost analog-to-digital converters to be utilized for the sampling of the signal sub-bands to be later digitally processed for the overall signal reconstruction. For validation, measured and simulated results of a proof-of-concept prototype for the analog channelizer are shown. Besides, the inversion of the measured transfer functions of this multiplexing device by means of the application of the co-designed digital filter bank is demonstrated. An experiment is also carried out showing the reconstruction of a band-limited noise signal with the developed hybrid filter bank.

The computer assisted bone bank and its application in individual treatment of bone tumor

Objective To investigate the clinical value of a computer assisted bone bank in bone tumor resection and structural allograft bone reconstruction with computer assisted navigation.Methods Bone allografts in the present conventional bone bank in Xijing Hospital were sectionally scanned by CT.Three-dimensional reconstructed images of the CT scans were saved and marked in the digital analytical system to establish a computer assisted bone bank.Before surgery three-dimensional reconstruc ted CT image data of the bone tumor were compared with the allogenic osteoarticular data in the digital bone bank to select an optimum match in bone remodeling segments.Both data were imported at the.dicom 3.0 format into the navigational system to accurately locate borders of the tumor and to cut the allograft bone during the surgery preoperatively designed with the aid of the digital bone bank to get a structural reconstruction.From November 2009 to June 2012,tunor resections and reconstructions under computer navigation assisted by the digital bone bank were performed in 6 patients with malignant bone tumors.The patients were 7 males and 4 females,aged from 13 to 42 years (average,24.7 years).There were 3 cases of giant cell tumor,5 cases of osteosarcoma,2 cases of chondrosarcona and one case of Ewing sarcoma.The oncological and functional outcomes were postoperatively evaluated by the Musculoskeletal Tumor Society 93 (MSTS93) system.Results The computer assisted bone bank obviously shortened the time for selecting allograft bone materials before surgery and improved the matching accuracy,compared with routine preparation of allograft bone.The dissection registration spots in the actual operations matched well with the preoperative three-dimensional reconstructed CT images before surgery,with an average registration error of 0.42 rmm.The 11 patients were followed up from 3 to 30 months (average,15.7 months).Postoperative X-ray images showed that the tumor resection territory and the allograft bone cutting region were totally consistent with the preoperative design in all patients.No limb discrepancy or malformation was observed.No screw loosening or breakage or joint collapse occurred.No obvious immunity rejection,or local recurrence or remote metastasis was observed.The healing between allograft and host bone was achieved after an average of 6.3 months.The average MSTS93 functional score was 25.7 points.Conclusions A digital bone bank can provide accurate information for selecting allograft bone materials before surgery,and allows for individual design of resection and reconstruction protocols which,in combination with computer navigation,may improve the safety and effectiveness of a salvage limb operation. Key words: Bone bank; Bone neoplasms; Surgery, computer-assisted

Alimentação urbana e a Pegada Ecológica do consumo de carne bovina na cidade de Parintins

This article discusses about the beef consumption in the urban area of the city of Parintins in light of its ecological and cultural impacts. With the assistance of the ecological footprint it is estimated (calculated) the consumption pressure of this feed on the environment. The data were collected through a survey and in the Refueling Municipal Secretary (SEMPA), which allowed to estimate the ecological pressure of beef consumption, as well as appraising the perception of cultural losses in the change of the protein absorption in the region, replacing to traditional food, particularly fish, for processed foods. Based, also, on the IBGE’s digital bank it was possible to draw a new configuration for the protein consumption in Parintins. The results show that, for the calculation of the ecological footprint, it is necessary to include not only the numbers, impacts distant from the site of consumption, but the environmental impact provided by the loss of food safety and nutritional link with the territory, by the increase of the consumption of imported frozen proteins.

Digital Bank Transformation: Sustainable Innovation in Financial Institutions

Introduction: Bank digital transformation is a continuous innovation from conventional commercial banks to digital banks. The driving force in traditional retail banks to carry out sustainable innovation can be seen from the internal and external sides in the form of mutually supportive operations and strategies. In the face of competitive pressures, businesses in the financial services industry increasingly depend on innovation and sustainability to succeed and survive. The stress of business competition has made many banks worldwide close their branch offices in recent years. Method: This study is a literature study that collects theoretical references relevant to sustainable innovation in financial institutions, focusing on two main topics: sustainable digital technology innovation in Fintech and banks' digital transformation. Result: Fintech uses digital technology as a sustainable solution in offering financial inclusion services that are difficult for old players in the financial industry to fulfill. Fintech appears in peer-to-peer lending, virtual marketplaces and digital currencies. For the Bank's digital transformation, several regulations from the Financial Services Authority related to sustainable innovation must be complied with. Financial Services Authority Regulation Number 51/POJK.03/2017 concerning implementing Sustainable Finance for Financial Services Institutions, Issuers and Public Companies. Financial Services Authority Regulation Number 13/POJK.02/2018 concerning Digital Financial Innovation in the Financial Services Sector. Conclusion: The driving force in the Company to carry out sustainable innovation can be seen from the internal and external sides in the form of mutually supportive operations and strategies. The proposed digital transformation strategy for the Bank's continuous innovation is as follows: compliance with regulators, customer-centric, openness principles, and making digital a core value in business.

Design of digital allpass-based two-channel quincunx QMF banks

This paper presents a novel structure for constructing two-channel quincunx quadrature mirror filter (QQMF) banks. The analysis and synthesis filters of the QQMF bank are composed of two-dimensional (2-D) recursive digital allpass filters with symmetric half-plane support regions. Using the 2-D doubly complementary half-band property possessed by the analysis and synthesis filters, we facilitate the design of the digital allpass-based two-channel QQMF banks. For finding the coefficients of the 2-D recursive symmetric half-plane digital allpass filters, the design problem is appropriately formulated to result in an optimization problem that can be solved by using a weighted least-squares algorithm in the minimax (L∞) optimal sense. The novelty of the proposed design method is that the designed 2-D QQMF bank achieves perfect magnitude response and possesses satisfactory phase response without requiring extra phase equalizer. Simulation results are also provided for illustration and comparison. Copyright © 2012 John Wiley & Sons, Ltd.