Miracle-dz/UniFAR-FTUs huggingface dataset:
ADVANCED MOTION TRACKING BASED MOBILITY ASSISTANCE FOR PHYSICALLY DISABLED

In present-day scenario, many people aren’t able to control powered wheel chair using various interfaces like joystick, head control or voice control. For this reason, a new image-processing based mobility assistance system is proposed in this paper that automatically tracks the leg movement of the assisting person and follows him accordingly. In addition to this, an eye tracking feature has been inculcated into the proposed system that would help the disabled person in controlling the movement of wheel-chair using eye movement in the absence of an assisting person. The leg tracking module has been devised using the background subtraction and CamShift algorithms while the eye-tracking module utilizes the Haar cascades along with the Daugman’s algorithm to track the eye-movement.
Structure and twinning of single-crystal MgSiO 3 garnet synthesized at 17 GPa and 1800 ' C

Single crystals of MgSiO. garnet have been synthesized at 17 GPa and 1800 "C in a uniaxial split-sphere anvil device, and the structure has been determined by refinement of single-crystal X-ray diffraction data. This garnet is tetragonal with unit-cell parameters a : l l . 50l(l) A, c : 11.480(2) L, vno: 1518.6(4) A'. The space group is 14,/a, and all crystals display pervasive twinning by reflection on (l l0), making the apparent Laue symmetry close lo 4/mmm. Two Mg positions are coordinated by eight anions with average Mg-O bond lengths of 2.284 and 2.279 A. tutg and Si are at least partially ordered over the octahedral sites with mean Si-O: 1.807 A and mean Mg-O: 1.998 A. The three tetrahedral sites are all occupied by Si with mean bond lengths of 1.622 ,l.652,and 1.641 A.
Estimation du risque aux intersections pour applications sécuritaires avec véhicules communicants. (Risk estimation at road intersections for connected vehicle safety applications)

Les intersections sont les zones les plus dangereuses du reseau routier. Les statistiques montrent que la plupart des accidents aux intersections sont causes par des erreurs des conducteurs, et que la plupart pourraient etre evites a l'aide de systemes d'aide a la conduite. En particulier, les communications inter-vehiculaires ouvrent de nouvelles opportunites pour les applications securitaires aux intersections. Le partage d'informations entre les vehicules via des liens sans fil permet aux vehicules de percevoir leur environnement au-dela des limites du champ de vision des capteurs embarques. Grâce a cette representation elargie de l'environnement dans l'espace et dans le temps, la comprehension de situation est amelioree et les situations dangereuses peuvent etre detectees plus tot. Cette these aborde le probleme de l'estimation du risque aux intersections d'un nouveau point de vue : une structure de raisonnement est proposee pour analyser les situations routieres et le risque de collision a un niveau semantique plutot qu'au niveau des trajectoires. Le risque est determine en estimant les intentions des conducteurs et en identifiant les potentiels conflits, sans avoir a predire les futures trajectoires des vehicules. L'approche proposee a ete validee par des experimentations en environnement reel a l'aide de vehicules equipes de modems de communication vehicule-vehicule, ainsi qu'en simulation. Les resultats montrent que l'algorithme permet de detecter les situations dangereuses a l'avance et qu'il respecte les contraintes temps-reel des applications securitaires. Il y a deux differences principales entre l'approche proposee et les travaux existants. Premierement, l'etape de prediction de trajectoire est evitee. Les situations dangereuses sont identifiees en comparant ce que les conducteurs ont l'intention de faire avec ce qui est attendu d'eux d'apres les regles de la circulation et le contexte. Le raisonnement sur les intentions et les attentes est realise de maniere probabiliste afin de prendre en compte les incertitudes des mesures capteur et les ambiguites sur l'interpretation. Deuxiemement, le modele propose prend en compte les informations sur le contexte situationnel, c'est-a-dire que l'influence de la geometrie de l'intersection et des actions des autres vehicules est prise en compte lors de l'analyse du comportement d'un vehicule.
Perception auditory factor for speaker recognition in noisy environment

Speaker recognition plays an important role in speech processing and classification. In this paper, we propose a features extraction method using Perception Auditory Factor to improve the performance of speaker recognition in noisy environment. After the speech enhancement based on auditory perception characteristic and the 2-dimension enhancement for spectrogram, speech distribution is obtained from noisy speech, which is combined with perception speech content to extract Perception Auditory Factor. Speech features are extracted by using Perception Auditory Factor for speaker recognition. The experiments prove that, in four different noisy environments, the proposed method improves the robustness to the compared method in a wide range of SNR from -10 dB to 20 dB. Thanks to the proposed method, the average recognition correctness rates increase 25.2%, 19.1% and 9.7% to the three compared methods respectively. The proposed method is more suitable for speaker recognition in noisy environment.
From One to Many Business Models: Uncovering characteristics of Business Model Portfolios

As business model (BM) innovation has become one of management’s top priorities, anecdotal evidence suggests that firms do not have one single BM but run multiple BMs in parallel. From an academic perspective, only few attempts have been made until today, to broaden the scope of research from one to many BMs within firm boundaries. To close this gap, we systematically review the emerging literature on “multiple” BMs, based on a theoretical framework that links the BM concept with general mechanisms of corporate portfolio management. Our results show that firms develop BM portfolios as a direct result of challenges in today’s technology-driven environment, such as disruptive industry BMs and the need to commercialize technologies with innovative BMs. More specifically, our findings challenge the general assumption that firms should (or can) be described based on a single BM. Segmentation, configuration and coordination of multiple BMs can complement a customer-centric perspective in the BM development and management process, not only for large organizations. We provide initial characteristics of these mechanisms and outline areas for future research.
Adaptive code excited predictive coding

A novel way to use the code excited linear prediction (CELP) concept that decreases the processing load while keeping the same speech quality is discussed. Rather than performing individual weighting of each candidate sequence, a global implementation of the perceptual weighting function at the codebook level is proposed. As a result, the analysis-by-synthesis procedure does not require the processing of all the candidate sequences through the synthesis and weighting filters; the complexity requirement of the algorithm is therefore much reduced. The concept is carried out with an adaptive codebook. Two fixed-point implementations of the adaptive CELP (ACELP) algorithm are reported: a 7.2 kb/s block coder (7 MIPS), and a 12 kb/s low-delay coder (11 MIPS). Both coders have been rated to provide the same quality as the 13 kb/s block coder adopted by the GSM for the European cellular telephone. >
Market Integration and Disintegration of Poland and Germany in the 18th Century

Was the 18th century a time period of gradual market integration? Or did the wars, famines, and criminality drive central European markets away from each other? We perform cointegration tests between four German and three Polish cities for rye markets in the 18th century, plus selected tests with other grains. We confirm earlier findings that Gdansk was very well-connected. In a dynamic analysis between the early and the late 18th century we find that integration decreased considerably between German and Polish cities. At the same time Polish grain markets appear to disintegrate as well.
Detrimental hemodynamic effects of assisted ventilation in hemorrhagic states

Objective:Our goal was to demonstrate explicitly that lower-frequency positive-pressure ventilation not only preserves adequate oxygenation and acid-base status in hemorrhagic states, but also that “normal” or higher respiratory rates significantly compromise hemodynamics, even with moderate degrees of hemorrhage. Design and Subjects:Eight intubated pigs (ventilated with 12 mL/kg tidal volume, 28% Fio2, respiratory rate = 12 breaths/min) were hemorrhaged to <65 mm Hg of systolic blood pressure. Respiratory rates were then sequentially changed every 10 mins to 6, 20, 30, and 6 breaths/min. Measurements and Main Results:With respiratory rates at 6 breaths/min, all subjects maintained pH of >7.25 and Sao2 of >99% while increasing systolic blood pressure (mean, 65–84 mm Hg; p < .05), time-averaged coronary perfusion pressure (50 ± 2 to 60 ± 4 mm Hg; p < .05), and cardiac output (2.4 to 2.8 L/min; p < .05). With respiratory rates of 20 and 30 breaths/min, systolic blood pressure (73 ± 4 and 66 ± 5 mm Hg, respectively), coronary perfusion pressure (47 ± 3 and 42 ± 4 mm Hg), and cardiac output (2.5 and 2.4 L/min) diminished. When returned to 6 breaths/min, systolic blood pressure (95 mm Hg), coronary perfusion pressure (71 + 6 mm Hg), and cardiac output (3.0 L/min) improved significantly (p < .05 for all comparisons). Conclusions:After moderate hemorrhage, animals maintain adequate oxygenation and acid-base status with lower-frequency respiratory rates, whereas increasingly higher respiratory rates progressively and significantly impair hemodynamics. Current ventilatory protocols for trauma resuscitation should be re-examined and considered a possible cause of worsened clinical outcomes and unrecognized confounded study results.
Application of a hybrid finite difference/finite volume method to solve an automotive EMC problem

In this paper, we present a hybrid finite difference/finite volume method and we apply it to solve an automotive electromagnetic compatibility (EMC) problem. The principles of the hybrid method and the numerical schemes are described. Simple examples are used to compare this method with the finite difference and finite volume methods alone in terms of accuracy and computing speed. The automotive EMC problem and its modeling are then presented. Finally, sample comparisons between measurements and calculations of both electric fields and S-parameters between an antenna and cables are given.
All-Digital Synchronization for SC/OFDM Mode of IEEE 802.15.3c and IEEE 802.11ad

In this paper, a detection and estimation scheme and its architecture design for synchronization in 60 GHz indoor wireless transmission are presented. With the complementary Golay sequence based preamble structure, the proposed synchronization scheme is designed to detect the preamble and symbol boundary, estimate the frequency offset within a unified architecture. For the very high sampling speed at 60 GHz transmission, the architecture is designed as 8 ×-parallelism with feed-forward data path. This architecture supports the single carrier (SC) and orthogonal frequency-division multiplexing (OFDM) transmissions of both IEEE 802.15. 3c and IEEE 802.11ad standards. The synchronization module is implemented as a part of a digital baseband receiver for IEEE 802.15. 3c. The tolerance of maximum frequency offset is about 114.58 ppm and 171.87 ppm for SC and OFDM mode, respectively. The implementation result shows that it takes about 0.84 mm2 of area (equivalent to 307 k gate counts). The power consumption is about 59 mW in SC mode and 96 mW in OFDM (HSI) mode when operating at 1.76 GHz and 2.64 GHz chip rate, respectively.
The Copines, a Novel Class of C2 Domain-containing, Calciumdependent, Phospholipid-binding Proteins Conserved from Paramecium to Humans*

In an attempt to identify proteins that might underlie membrane trafficking processes in ciliates, calcium-dependent, phospholipid-binding proteins were isolated from extracts of Paramecium tetraurelia. The major protein obtained, named copine, had a mass of 55 kDa, bound phosphatidylserine but not phosphatidylcholine at micromolar levels of calcium but not magnesium, and promoted lipid vesicle aggregation. The sequence of a 920-base pair partial cDNA revealed that copine is a novel protein that contains a C2 domain likely to be responsible for its membrane active properties. Paramecium was found to have two closely related copine genes, CPN1 andCPN2. Current sequence data bases indicate the presence of multiple copine homologs in green plants, nematodes, and humans. The full-length sequences reveal that copines consist of two C2 domains at the N terminus followed by a domain similar to the A domain that mediates interactions between integrins and extracellular ligands. A human homolog, copine I, was expressed in bacteria as a fusion protein with glutathione S-transferase. This recombinant protein exhibited calcium-dependent phospholipid binding properties similar to those of Paramecium copine. An antiserum raised against a fragment of human copine I was used to identify chromobindin 17, a secretory vesicle-binding protein, as a copine. This association with secretory vesicles, as well the general ability of copines to bind phospholipid bilayers in a calcium-dependent manner, suggests that these proteins may function in membrane trafficking.
Dichloro(4,10-dimethyl-1,4,7,10-tetraazabicyclo[5.5.2]tetradecane)iron(III) hexafluorophosphate.

The title compound, [FeCl2(C12H26N4)]PF6, is the first mononuclear Fe3+ complex of an ethylene cross-bridged tetraaza-macrocycle to be structurally characterized. Comparison with the mononuclear Fe2+ complex of the same ligand shows that the smaller Fe3+ ion is more fully encapsulated by the cavity of the bicyclic ligand. Comparison with the mu-oxo dinuclear complex of an unsubstituted ligand of the same size demonstrates that the methyl groups of 4,10-dimethyl-1,4,7,10-tetraazabicyclo[5.5. 2]tetradecane prevent dimerization upon oxidation of the metal centre. Nax -Fe3+ -Nax bond angles (ax is axial), and thus the degree of encapsulation by the ligand, are quite different between the mononuclear and dinuclear mu-oxo species, which is probably the consequence of steric considerations.
Variation in SWI/SNF Chromatin Remodeling Complex Proteins is Associated with Alcohol Dependence and Antisocial Behavior in Human Populations.

BACKGROUND Testing for direct gene or single nucleotide polymorphism replication of association across studies may not capture the true importance of a candidate locus; rather, we suggest that relevant replication across studies may be found at the level of a biological process. We previously observed that variation in 2 members of the switching defective/sucrose nonfermenting (SWI/SNF) chromatin remodeling complex is associated with alcohol dependence (AD) in the Irish Affected Sib Pair Study for Alcohol Dependence. Here, we tested for association with alcohol-related outcomes using a set of genes functioning in the SWI/SNF complex in 2 independent samples. METHODS We used a set-based analysis to examine the 29 genes of the SWI/SNF complex for evidence of association with (i) AD in the adult Collaborative Study on the Genetics of Alcoholism (COGA) case-control sample and (ii) antisocial behavior, hypothesized to be a genetically related developmental precursor, in a younger population sample (Spit for Science [S4S]). RESULTS We found evidence for association of the SWI/SNF complex with AD in COGA (p = 0.0435) and more general antisocial behavior in S4S (p = 0.00026). The genes that contributed most strongly to the signal in COGA were SS18L1, SMARCD1, BRD7, BCL7B, SMARCB1, and BCL11A. In the S4S sample, ACTB, ARID2, BCL11A, BCL11B, BCL7B, BCL7C, DPF2, and DPF3 all contributed strongly to the signal. CONCLUSIONS We detected associations between the SWI/SNF complex and AD in an adult population selected from treatment-seeking probands and antisocial behavior in an adolescent population sample. This provides strong support for a role for SWI/SNF in the development of alcohol-related problems.
Efficient graphics processing unit based layered decoders for quasicyclic low‐density parity‐check codes

Because layered low‐density parity‐check (LDPC) decoding algorithm was proposed, one can exploit the diversity gain to achieve performance comparable to the traditional two‐phase message passing (TPMP) decoding but with about twice faster decoding convergence compared to TPMP. In order to reduce the decoding time of layered LDPC decoder, a graphics processing unit (GPU) is exploited as the modem processor so that the decoding procedure can be processed in parallel using numerous threads in the GPU. In this paper, we present the parallel algorithms and efficient implementations on the GPU for two different layered message passing schemes, the row‐layered and column‐layered decoding. In the experiments, the quasicyclic LDPC codes for WiFi (802.11n) and WiMAX (802.16e) are decoded by the proposed layered LDPC decoders. The experimental results show that our decoder has good bit error ratio (BER) performance comparable to TPMP decoder. The peak throughput is 712 Mbps, which is about two orders of magnitude faster than that of CPU implementation and comparable to the dedicated hardware solutions. Compared to the existing fastest GPU‐based implementation, the presented decoder can achieve a performance improvement of 2.3 times. Copyright © 2013 John Wiley & Sons, Ltd.
Dual-temperature mode for quantitative analysis of gas mixtures with MOX sensor

Quantitative analysis of gas mixtures for detecting low concentrations of gases like acetone or ethanol in exhaled breath is of high interest in medical diagnostics and patient monitoring. In this purpose, we intend to use source separation methods for separating the gas sources measured with MOX sensors. These unsupervised methods require a relevant mathematical model of responses of MOX sensors to gas mixtures, but only a few calibration measurements for recovering concentrations. Source separation methods also require a form of diversity, usually obtained by using a set of sensors. In this paper, we show that this diversity can be virtually obtained by using a unique MOX sensor, used sequentially at different temperatures. For a proof of concept, we propose an experimental investigation of metal-oxide sensor response model in a dual temperature mode for quantitative analysis of a mixture of acetone and ethanol in air.
AVALIAÇÃO DA DOSAGEM DE PRÓPOLIS PULVERIZADA NAS FOLHAS DE AMOREIRA (Morus sp.) SOBRE O DESENVOLVIMENTO BIOLÓGICO E PRODUTIVO DO BICHO-DA-SEDA (Bombyx mori L.)

Este experimento foi realizado no Laboratorio de Sericicultura, no Campus Sede da Universidade Paranaense (UNIPAR) de Umuarama, no periodo de 17/09/2009 a 17/10/2009, com o objetivo de verificar o efeito da propolis em diferentes dosagens na alimentacao durante o desenvolvimento biologico do bicho-da-seda (Bombxy mori L). O metodo empregado na parte experimental foi a pulverizacao do extrato alcoolico de propolis, diluido em 500 mL de agua destilada nas folhas de amoreira, nas seguintes dosagens, agua-controle, 5mL, 10mL, 15mL e 20mL compondo os tratamentos T1, T2, T3, T4, T5, respectivamente. As folhas de amoreira foram fornecidas cinco vezes ao dia, durante o manejo alimentar. Verificou-se pelos resultados obtidos, que as diferentes dosagens de propolis utilizadas interferem no ganho de peso das lagartas, no peso dos casulos verdes e crisalidas quando comparado ao tratamento controle, influenciando tambem no numero de casulos formados e, para os teores de seda bruto e liquido nao apresentaram resultados significativos, quando comparados com o tratamento controle. Portanto, verificou-se que a propolis, nas dosagens utilizadas, nao trouxe efeitos depressivos a biologia e producao do bicho-da-seda.
[The spectral analysis of heart rate variability. A comparative study between nonparametric and parametric spectral analysis in short series].

OBJECTIVE to compare parametric (AR) and non parametric (FFT) spectral analysis results obtained in 512 beats series. INTERVENTIONS 104 healthy subjects with normal physical examination and electrocardiogram were studied. The Ecg was recorded at rest, with controlled breathing at 15 cycles/min., and sampled at 300 Hz. The spectral VLF, LF and HF were calculated with FFT algorithm. For the same series, an auto-regressive analysis (AR) with optimized choice of the order of the model (AIC criterion) have been computed, VLF, LF and HF components were identified by AR spectral decomposition. RESULTS In both groups, athletes and sedentary, there were no statistically differences between VLF, LF, HF and LF/HF spectral indices computed by the two methods. CONCLUSION the results suggest that with controlled breathing it does not seems to exist any advantage in the use of AR spectral analysis to compute spectral components of heart rate variability, which is much more laborious that fixed bands non parametric FFT analysis.
Quantum Theory of Condensed Matter

I aim to discuss a reasonably wide range of quantum-mechanical phenomena from condensed matter physics, with an emphasis mainly on physical ideas rather than mathematical formalism. The most important prerequisite is some understanding of second quantisation for fermions and bosons. There will be two problems classes in addition to the lectures. Michaelmas Term 2013: Lectures in the Fisher Room, Dennis Wilkinson Building, Physics Department, on Wednesdays at 10:00 and Fridays at 11:00.
Charging and discharging characteristics of metal nanocrystals in degraded dielectric stacks

The conduction mechanisms of dielectric breakdown (BD) in MOS capacitor structure with nanocrystals (NCs) embedded in bi-layer gate stacks (SiO2/Al2O3) are studied systematically. Using a unique stressing methodology of inducing a BD path in one dielectric layer, the charging and discharging phenomenon of the metal NCs and leakage mechanism in the degraded gate stacks are found to be strongly dependent on the lateral charge tunneling/hopping among the NCs. It is found that the localized BD not only affects charge holding capability of the affected NCs, but also provides a leakage path for the charges stored in the surrounding NCs. Thus, the discharging of NCs via the BD path is not a localized phenomenon.
Clothes Advertising by Targeting Principal Actors in Video

In this paper, we present a new framework for online video advertising by targeting clothes of principal actors. This framework aims to embed both character-relevant and content-relevant advertisements within a video stream. We identify the main actors automatically in a given video by using face clustering techniques. Specifically, we propose a new clustering algorithm based on face verification. Then we can find the main characters by counting the number of faces of each class. The video frames that include main characters are the best options to advertising. We segment the image patches of main characters from these video frames by object detection, and carry out different strategies for different sizes of images to match clothes ads. Experimental results demonstrate the effectiveness of our proposed method.