Miracle-dz/UniFAR-FTUs huggingface dataset:
Parallel acoustic delay lines for photoacoustic tomography

Abstract. Achieving real-time photoacoustic (PA) tomography typically requires multi-element ultrasound transducer arrays and their associated multiple data acquisition (DAQ) electronics to receive PA waves simultaneously. We report the first demonstration of a photoacoustic tomography (PAT) system using optical fiber-based parallel acoustic delay lines (PADLs). By employing PADLs to introduce specific time delays, the PA signals (on the order of a few micro seconds) can be forced to arrive at the ultrasonic transducers at different times. As a result, time-delayed PA signals in multiple channels can be ultimately received and processed in a serial manner with a single-element transducer, followed by single-channel DAQ electronics. Our results show that an optically absorbing target in an optically scattering medium can be photoacoustically imaged using the newly developed PADL-based PAT system. Potentially, this approach could be adopted to significantly reduce the complexity and cost of ultrasonic array receiver systems.
AgNO3 boosted high-frequency shoot regeneration in Vigna mungo (L.) Hepper

In order to further increase shoot regeneration frequency of Vigna mungo (L.) Hepper. , the effects of AgNO3 on this process was investigated in this study. The shoot tip and cotyledonary node explants were cultured on MS salts B5 Vitamins medium containing BA+TDZ+Ads+AgNO3 for multiple shoot induction. AgNO3 influenced the shoot bud formation and their subsequent proliferation. The best medium composition for multiple shoot induction was BA, TDZ combination with Ads and AgNO3 in MSB5 medium. Maximum 39 shoots in cotyledonary node and 22 shoots in shoot tip were obtained per explants after 4 – 6 wk. of culture. Elongation and rooting were performed in GA3 (0.6mg/l) and IBA (0.4mg/L) containing media respectively. The in vitro raised plantlets were acclimatized in green house and successfully transplanted to the field with a survival rate of 78%.
Generalizing Skills with Semi-Supervised Reinforcement Learning

Deep reinforcement learning (RL) can acquire complex behaviors from low-level inputs, such as images. However, real-world applications of such methods require generalizing to the vast variability of the real world. Deep networks are known to achieve remarkable generalization when provided with massive amounts of labeled data, but can we provide this breadth of experience to an RL agent, such as a robot? The robot might continuously learn as it explores the world around it, even while deployed. However, this learning requires access to a reward function, which is often hard to measure in real-world domains, where the reward could depend on, for example, unknown positions of objects or the emotional state of the user. Conversely, it is often quite practical to provide the agent with reward functions in a limited set of situations, such as when a human supervisor is present or in a controlled setting. Can we make use of this limited supervision, and still benefit from the breadth of experience an agent might collect on its own? In this paper, we formalize this problem as semisupervised reinforcement learning, where the reward function can only be evaluated in a set of "labeled" MDPs, and the agent must generalize its behavior to the wide range of states it might encounter in a set of "unlabeled" MDPs, by using experience from both settings. Our proposed method infers the task objective in the unlabeled MDPs through an algorithm that resembles inverse RL, using the agent's own prior experience in the labeled MDPs as a kind of demonstration of optimal behavior. We evaluate our method on challenging tasks that require control directly from images, and show that our approach can improve the generalization of a learned deep neural network policy by using experience for which no reward function is available. We also show that our method outperforms direct supervised learning of the reward.
The Nature of Working Memory for Braille

Blind individuals have been shown on multiple occasions to compensate for their loss of sight by developing exceptional abilities in their remaining senses. While most research has been focused on perceptual abilities per se in the auditory and tactile modalities, recent work has also investigated higher-order processes involving memory and language functions. Here we examined tactile working memory for Braille in two groups of visually challenged individuals (completely blind subjects, CBS; blind with residual vision, BRV). In a first experimental procedure both groups were given a Braille tactile memory span task with and without articulatory suppression, while the BRV and a sighted group performed a visual version of the task. It was shown that the Braille tactile working memory (BrWM) of CBS individuals under articulatory suppression is as efficient as that of sighted individuals' visual working memory in the same condition. Moreover, the results suggest that BrWM may be more robust in the CBS than in the BRV subjects, thus pointing to the potential role of visual experience in shaping tactile working memory. A second experiment designed to assess the nature (spatial vs. verbal) of this working memory was then carried out with two new CBS and BRV groups having to perform the Braille task concurrently with a mental arithmetic task or a mental displacement of blocks task. We show that the disruption of memory was greatest when concurrently carrying out the mental displacement of blocks, indicating that the Braille tactile subsystem of working memory is likely spatial in nature in CBS. The results also point to the multimodal nature of working memory and show how experience can shape the development of its subcomponents.
Young People's Descriptions of Computational Rules in Role-Playing Games: An Empirical Study

A study was carried out which examined the extent to which young people aged 11-12, with no prior instruction in programming, are able to write computational rules which govern play in a 3D computer role-playing game. Expressing these rules required the use of common computational structures such as conditionals, sets and loops. We analysed the rules written for their structure and style, and recorded the types of errors made. It was found that although young people were able to abstract away from the game play experience, very few of the rules were error-free. The most common errors were errors of omission (leaving elements out that should have been included) rather than errors of commission (including elements which should not be part of the rule). These findings have implications for the design of the Flip language, which aims to support young people as they begin to develop computational skills through game design.
Clearing the RF smog: making 802.11n robust to cross-technology interference

Recent studies show that high-power cross-technology interference is becoming a major problem in today's 802.11 networks. Devices like baby monitors and cordless phones can cause a wireless LAN to lose connectivity. The existing approach for dealing with such high-power interferers makes the 802.11 network switch to a different channel; yet the ISM band is becoming increasingly crowded with diverse technologies, and hence many 802.11 access points may not find an interference-free channel. This paper presents TIMO, a MIMO design that enables 802.11n to communicate in the presence of high-power cross-technology interference. Unlike existing MIMO designs, however, which require all concurrent transmissions to belong to the same technology, TIMO can exploit MIMO capabilities to decode in the presence of a signal from a different technology, hence enabling diverse technologies to share the same frequency band. We implement a prototype of TIMO in GNURadio-USRP2 and show that it enables 802.11n to communicate in the presence of interference from baby monitors, cordless phones, and microwave ovens, transforming scenarios with a complete loss of connectivity to operational networks.
Antimicrobial Activities of Seven Novel Tetramethylpiperidine-Substituted Phenazines against Multiple-Drug-Resistant Gram-Positive Bacteria

Background: A dramatic increase in multiple-drug-resistant (MDR) Gram-positive pathogens has occurred in recent times, leading to increased rates or morbidity and mortality and also associated with high costs for the treatment of these infections. It is clear that there is an urgent need for the development of effective antimicrobial agents. The anti-bacterial activity of seven 2,2,6,6-tetramethylpiperidine (TMP)-substituted phenazines, compared to clofazimine (B663), were tested against 70 clinical isolates of methicillin-resistant Staphylococcus aureus, MDR Streptococcus pneumoniae and resistant Enterococcus sp. Methods: Standard minimum inhibitory concentration agar dilution susceptibility tests were done on all isolates, including ATCC control strains. Results: All the TMP-substituted phenazines were more active than clofazimine against all isolates tested. Compound B4125 was the most active by inhibiting all growth of the organisms tested, including vancomycin-resistant Enterococcus faecium. Conclusion: Clofazimine has been shown to have anti-staphylococcal activity. We demonstrate enhanced anti-bacterial activity of TMP-substituted phenazines against drug-resistant Gram-positive organisms compared to clofazimine.
Interventions for Treating Displaced Midshaft Clavicular Fractures

AbstractDisplaced midshaft clavicle fractures are frequent injuries. There are 3 treatment methods including conservative treatment, plate fixation, and intramedullary pin fixation. However, which is the best treatment remains a topic of debate.To establish the optimum treatment for displaced midshaft clavicular fractures, we did a network meta-analysis to compare 3 treatments in terms of postoperative nonunion and infection.We searched PubMed, the Cochrane Library, and Embase for relevant randomized controlled trials (RCTs) until the end of October 2014. Two investigators independently reviewed the abstract and full text of eligible studies and extracted information. We used WinBUGS 1.4 (Imperial College School of Medicine at St Mary's, London) to perform our Bayesian network meta-analysis. We used the graphical tools in STATA12 (StataCorp, Texas) to present the results of statistical analyses of WinBUGS14. Nonunion and infection were presented as odd ratios (ORs) with 95% confidence intervals (CIs). We also presented the results using surface under the cumulative ranking curve (SUCRA). A higher SUCRA value suggests better results for respective treatment method.Thirteen RCTs were included in our network meta-analysis, with a total of 894 patients randomized to receive 1 of 3 treatments. Nonunion rates were 0.9%, 2.4%, and 11.4% for intramedullary pin fixation, plate fixation, and conservative method, respectively. Nonunion occurred more commonly in patients treated with conservative method than in patients treated with either plate fixation (OR, 0.18; 95% CI, 0.05–0.46) or intramedullary pin fixation (OR, 0.12; 95% CI, 0.01–0.50). There was no significant difference between plate and intramedullary pin fixation in nonunion (OR, 3.64; 95% CI, 0.31–17.27). Furthermore, SUCRA probabilities were 87.8%, 62.0%, and 0.2% for intramedullary pin fixation, plate fixation, and conservative method, respectively. Infection rates were 3.6% and 3.9% for intramedullary pin fixation and plate fixation, respectively. There was no significant difference between plate and intramedullary pin fixation in infection (OR, 3.64; 95% CI, 0.31–17.27). SUCRA probabilities were 46.5% and 8.5% for intramedullary pin and plate fixation, respectively.Our network meta-analysis suggested that intramedullary pin fixation is the optimum treatment method for displaced midshaft clavicle fracture because of the low probabilities of nonunion and infection.
A technique for relief of motor and sensory deficits occurring after anterior ulnar transposition. Technical note.

✓ A method is described for relief of dysesthetic pain or progression of the motor and sensory deficits in previously transposed ulnar nerves that have become entrapped in the operative scar. After an external neurolysis to prevent a recurrence, a Silastic strip 15 cm long and 3 cm wide is sutured in place beneath the re-exposed nerve and covered by a strip of identical dimensions, which is also fixed to the soft tissues. The elbow joint is maintained in moderate flexion for 3 weeks by a posterior plaster splint. It is believed that this sheathing, while permitting movement of the nerve with flexion and extension, prevents re-encumbrance with adhesions. In nine cases so treated, compressive adhesions were encountered along the course of the transposed nerve rather than entrapment at the point where it has previously been brought out through the fascia. After operation, five out of nine patients maintained significant lasting motor and sensory improvement, verified bioelectrically. Minor sensory improvemen.
Employees' emotional reactions to promotion decisions

Purpose – The purpose of this paper is to highlight the interplay among promotion decision, emotions, and perceptions of organizational justice.Design/methodology/approach – The paper adopts Weiner's attribution theory of motivation and emotion, using it as a tool in the analysis. By using this framework, this paper analyses potential positive and negative emotional, and consequently, behavioral reactions of promoted and non‐promoted employees. The analysis focuses on emotional reactions as a function of the cause and the process for the decision in question from the subjective perspective of the employee whose fate is determined by that decision.Findings – This paper suggests that the decision and the process of promotion can lead to the experience of a myriad of discrete emotional states. It contends that such emotional reactions are resulting from considerations of justice related to the perceived causes of the promotion decision and the process that lead to it.Originality/value – By integrating attrib.
Steady-State Thermal Properties of Rectangular Straw-Bales (RSB) for Building

Straw is an inevitable product of cereal production and is available in huge quantities in the world. In order to use straw-bales as a building material, the characteristic values of the thermal performances should be determined. To not lose the benefits of the cheapness and sustainability of the material, the characteristics must be determined with simple and inexpensive means and procedures. This research aims to implement tools and methods focused at the determination of the thermal properties of straw-bales. For this study, the guidelines dictated by ASTM and ISO were followed. A measurement system consisting of a Metering Chamber (MC) was realized. The MC was placed inside a Climate Chamber (CC). During the test, a known quantity of energy is introduced inside MC. When the steady-state is reached, all the energy put into MC passes through its walls in CC, where it is absorbed by the air-conditioner. A series of thermopiles detect the temperature of the surfaces of the measurement system and of the specimen. Determining the amount of energy transmitted by the various parts of MC and by the specimen, it is possible to apply Fourier’s law to calculate the thermal conductivity of the specimen.
Europe and its Other (i.e. The Balkans)

A pesar que la denominacion “Balcanes” parece hacer referencia a una zona geografica, en realidad esta cadena montanosa no representa ni determina la variedad de territorios, pueblos y culturas que han sido incluidos en esta denominacion a lo largo de la historia. A traves de un estudio de los libros de viajes a la zona, se identifican las diferentes denominaciones y la construccion de un area ideal que representa la otra Europa, la Europa que recoge la dominacion otomana.
Algebraic Effects, Linearity, and Quantum Programming Languages

We develop a new framework of algebraic theories with linear parameters, and use it to analyze the equational reasoning principles of quantum computing and quantum programming languages. We use the framework as follows: we present a new elementary algebraic theory of quantum computation, built from unitary gates and measurement; we provide a completeness theorem or the elementary algebraic theory by relating it with a model from operator algebra; we extract an equational theory for a quantum programming language from the algebraic theory; we compare quantum computation with other local notions of computation by investigating variations on the algebraic theory.
Abnormal glutathione and sulfate levels after interleukin 6 treatment and in tumor‐induced cachexia

Excessive urea excretion associated with a negative nitrogen balance and massive loss of skeletal muscle mass (cachexia) is a frequent life‐threatening complication in malignancies and HIV infection. As these patients have often elevated inter‐leukin‐6 (IL‐6) and abnormally low cystine levels, we have now determined the intracellular levels of glutathione and other cysteine derivatives in the liver and muscle tissue of IL‐6‐treated or tumor‐bearing C57BL/6 mice. IL‐6 treatment or inoculation of the MCA‐105 fibrosarcoma caused a significant increase in hepatic γ‐glutamyl‐cysteine synthetase activity and a decrease in the sulfate level, glutamine/urea ratio, and glutamine/glutamate ratio, suggesting that a decrease of the proton generating cysteine catabolism in the liver may increase carbamoyl‐phosphate synthesis and urea formation at the expense of net glutamine synthesis. Treatment with cysteine, conversely, caused an increase in sulfate, glutamine/urea ratios, and glutamine/glutamate ratios and may thus be a useful therapeutic tool in clinical medicine. In contrast to the liver, muscle tissue of tumor‐bearing mice showed decreased glutathione and increased sulfate levels, suggesting that the cysteine pool may be drained by an increased cysteine catabolism in this tissue. The findings indicate that tumor cachexia is triggered initially by IL‐6 and is later sustained by processes driven by an abnormal cysteine metabolism in different organs. —Hack, V. , Gross, A. , Kinscherf, R. , Bockstette, M. , Fiers, W. , Berke, G. , and Dröge, W. Abnormal glutathione and sulfate levels after interleukin 6 treatment and in tumor‐induced cachexia. FASEB J. 10, 1219‐1226 (1996)
Defect level prediction for I/sub DDQ/ testing

A problem with I/sub DDQ/ testing is its inability to predict defect level. This paper classifies defects detected by I/sub DDQ/ testing into two categories: those that can be modeled by stuck-at-fault (SAF) model and those that can not be modeled by SAF, based on statistical analysis of production failures and field failures. A new approach for curve fitting to a classical model is presented. The effect of a pass/fail limit on test quality is discussed.
Joint Modeling of Call and Put Implied Volatility

This paper exploits the fact that implied volatilities calculated from identical call and put options have often been empirically found to differ, although they should be equal in theory. We propose a new bivariate mixture multiplicative error model and show that it is a good fit to Nikkei 225 index call and put option implied volatility (IV). A good model fit requires two mixture components in the model, allowing for different mean equations and error distributions for calmer and more volatile days. Forecast evaluation indicates that, in addition to jointly modeling the time series of call and put IV, cross effects should be added to the model: put-side implied volatility helps forecast call-side IV, and vice versa. Impulse response functions show that the IV derived from put options recovers faster from shocks, and the effect of shocks lasts for up to six weeks.
Potential Renoprotective Effects of Rosemary and Thyme Against Gentamicin Toxicity in Rats

ABSTRACT Gentamicin (GM) is a drug used commonly against gram-negative bacteria. Its therapeutic use is mainly limited by its nephrotoxicity. This investigation was aimed at evaluating the nephroprotective effects of rosemary (RM; Rosmarinus officinalis) and thyme (TV; Thymus vulgaris) against GM toxicity. Rats were divided into four groups. Normal control group was treated intraperitoneally (i.p.) with saline; positive control group was administered GM 60 mg/kg/day i.p.; RM group was co-administered 8% RM aqueous extract, 10 mL/kg/day, orally with GM; and TV group was co-administered 8% TV aqueous extract orally, 10 mL/kg/day with GM. Both RM and TV groups extracted significantly ameliorated plasma kidney function biomarkers, and reduced malondialdhyde and glucose levels. Meanwhile, RM extract significantly modulated the electrolyte concentration and increased plasma insulin levels as compared with the GM group. However, the aqueous extract of RM showed more pronounced effects than TV extract. Our data were confirmed by histopathological examination and deoxyribonucleic acid (DNA) fragmentation analysis. Deleterious histopathological changes and increased DNA fragmentation induced by GM treatment were markedly controlled by the co-administration of RM and TV. Such renoprotective influence of RM and TV suggests their concurrent supplementation with GM therapy to limit GM toxicity.
Estimation error of Leydig cell numbers in atrophied rat testes due to the assumption of spherical nuclei

In this study, Leydig cell numbers in control and atrophied testes (induced via subcutaneous implants of testosterone plus 17β estradiol for 16 weeks; TE‐implanted) of rats, estimated via the fractionator method (independent of any assumptions) were compared to those estimated via the disector (unbiased, but dependent on shrinkage) and Floderus (assumes spherical particles, dependent on shrinkage) methods. Estimates of Leydig cell numbers in control rats produced by all three stereological methods were similar. In rats with atrophied testes, both the fractionator and the disector methods produced significantly lower (P < 0.01; 47% and 41 % with fractionator and disector, respectively) Leydig cell number estimates per testis than in the controls. By contrast, the estimates of Leydig cell number in atrophied testes derived via the Floderus equation were not significantly different from those of controls, but larger than those obtained via the fractionator and the disector methods. These results suggested that the assumptions of the Floderus method were violated in the atrophied rat testes.