Miracle-dz/UniFAR-FTUs huggingface dataset:
A hybrid key management scheme for Ad-hoc wireless sensor networks to improvesecure link establishment

Probabilistic key pre-distribution techniques for ad-hoc wireless sensor networks cannot guarantee link establishment and are prone to redundancy and key reuse. There is also a tradeoff between storage requirements, scalability and key reuse, which limits secure scalability. Master key an d Computation based key establishment techniques are vulnerable to clone attacks in case of compromised nodes. In this paper, the strengths of these approaches are combined to create a hybrid technique that ensures secure link establishment with higher resilience against compromised nodes and significantly reduce redundancy and encryption key reuse.
Tenancy Law Reform Act and Length of Tenancy Discount: Heterogenous Effects in a West German Household Sample

Compared to other European countries rental apartments dominate the German housing market. Policymakers and a large part of the population alike worry about the amount of affordable living space. Especially in metropolitan areas a high demand for living space exists and has been leading to a shortage and as a consequence to increasing rents. In 2001 the German government passed the Tenancy Law Reform Act to restrict the growth in rents (at least partially) and to strengthen the tenant's position. Up to now the efficacy of this reform has not been examined on national level. A further point of interest is the identification of a length of tenancy discount. The existing literature confirms such a discount where long-term tenants have to pay a lower real valued rent than short-term tenants. Our empirical analysis exploits data from the German Socio-Economic Panel (SOEP) that offers the unique advantage of a large and representative sample. We find that the Tenancy Law Reform Act in 2001 appears to have been successful in the restriction of exorbitant rents. Further, we identify a significant duration discount in the first years of a tenancy. This discount is significantly larger in the upper part of the conditional rent distribution.
GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration

GHK (glycyl-L-histidyl-L-lysine) is present in human plasma, saliva, and urine but declines with age. It is proposed that GHK functions as a complex with copper 2+ which accelerates wound healing and skin repair. GHK stimulates both synthesis and breakdown of collagen and glycosaminoglycans and modulates the activity of both metalloproteinases and their inhibitors. It stimulates collagen, dermatan sulfate, chondroitin sulfate, and the small proteoglycan, decorin. It also restores replicative vitality to fibroblasts after radiation therapy. The molecule attracts immune and endothelial cells to the site of an injury. It accelerates wound-healing of the skin, hair follicles, gastrointestinal tract, boney tissue, and foot pads of dogs. It also induces systemic wound healing in rats, mice, and pigs. In cosmetic products, it has been found to tighten loose skin and improve elasticity, skin density, and firmness, reduce fine lines and wrinkles, reduce photodamage, and hyperpigmentation, and increase keratinocyte proliferation. GHK has been proposed as a therapeutic agent for skin inflammation, chronic obstructive pulmonary disease, and metastatic colon cancer. It is capable of up- and downregulating at least 4,000 human genes, essentially resetting DNA to a healthier state. The present review revisits GHK's role in skin regeneration in the light of recent discoveries.
On the permeability of end‐plate membrane during the action of transmitter

Movements of specific ions in excitable tissues have been emphasized by a number of recent experiments. In particular, there have been many quantitative experiments which show that the rising phase of the nerve impulse in invertebrate giant axons is associated with an inflow of sodium and the falling phase with an outflow of potassium (Hodgkin, Huxley & Katz, 1952; Hodgkin & Huxley, 1952) and similar selective permeability changes have been observed accompanying the propagated action potential in muscle fibres and in myelinated nerve fibres (Dodge & Frankenhaeuser, 1959; Hodgkin & Horowicz, 1959a). In addition, the inhibitory potentials observed in some nerve cells (Coombs, Eccles & Fatt, 1955; Edwards & Hagiwara, 1959), heart muscle fibres (Burgen & Terroux, 1953; Hutter & Trautwein, 1956; Trautwein & Dudel, 1958), and crustacean muscle (Fatt & Katz, 1953; Boistel & Fatt, 1958) have been shown to be produced by changes in permeability of the post-synaptic membrane to potassium and/or chloride ions. On the other hand, it has been considered that at the end-plate the transmitter produces a rapid simultaneous transfer of sodium and potassium, and possibly also of all other free ions on either side of the membrane (Fatt & Katz, 1951; del Castillo & Katz, 1954, 1955, 1956). An approximately linear relationship has been observed between the amplitude of the end-plate potential (e.p.p.) and the membrane potential, the equilibrium potential being about -15 mV (Fatt & Katz, 1951). A similar relationship has also been observed in the amplitude of end-plate current (e.p.c.) obtained when the membrane was clamped at a constant potential during neuromuscular transmission (Takeuchi & Takeuchi, 1959). The membrane potential at which e.p.c. becomes zero may be called provisionally 'e.p.c. equilibrium potential'. In the present experiment, the e.p.c. equilibrium potential was measured in solutions of various ionic composition and the ions which contributed to the e.p.c. were determined. It will be shown
Reuse based Requirements Clustering

Requirements reuse is intended for cost reduction by benefiting from reusable requirements elements (assets) in software development. In general, successful reuse approaches are based on the identification of commonalities and variabilities between application family members. There are many domains where the software development process has not followed an application family focus. Addressing the requirements reuse in these domains requires an analysis to sort the requirements and discover the commonalities and variabilities. This paper presents a coloured Petri net based technique for analysis and clustering of requirements information such that one could take advantage of it within a reuse framework.
Guaranteed QoS Resource Scheduling Scheme Based on Improved Electromagnetism-Like Mechanism Algorithm in Cloud Environment

Faced with a huge user base, cloud computing need to be addressed with the amount of tasks and data. The resource scheduling scheme for cloud computing environment, that provides QoS(Quality of Service) guarantees, is presented in this paper based on improved Electromagnetism-like Mechanism algorithm(EM). To update force equation and the introduction of tabu search ideas, so as to control the global and local search as far as possible to avoid falling into local optimum. The experimental results in CloudSim platform show that the algorithm is efficient.
A Comparison of q-optimal Option Prices in a Stochastic Volatility Model with Correlation

This paper investigates option prices in an incomplete stochastic volatility model with correlation. In a general setting, we prove an ordering result which says that prices for European options with convex payoffs are decreasing in the market price of volatility risk. As an example, and as our main motivation, we investigate option pricing under the class of q-optimal pricing measures. Using the ordering result, we prove comparison theorems between option prices under the minimal martingale, minimal entropy and variance-optimal pricing measures. As a concrete example, we specialise to a variant of the Heston model. For this example we are able to deduce that option prices are decreasing in the parameter q.
A comparison of algorithms and humans for mitosis detection

We consider the problem of detecting mitotic figures in breast cancer histology slides. We investigate whether the performance of state-of-the-art detection algorithms is comparable to the performance of humans, when they are compared under fair conditions: our test subjects were not previously exposed to the task, and were required to learn their own classification criteria solely by studying the same training set available to algorithms. We designed and implemented a standardized web-based test based on the publicly-available MITOS dataset, and compared results with the performance of the 6 top-scoring algorithms in the ICPR 2012 Mitosis Detection Contest. The problem is presented as a classification task on a balanced dataset. 45 different test subjects produced a total of 3009 classifications. The best individual (accuracy = 0.859 ± 0.012), is outperformed by the most accurate algorithm (accuracy = 0.873 ± 0.004). This suggests that state-of-the-art detection algorithms are likely limited by the size of the training set, rather than by lack of generalization ability.
To Phenomenological Theory of Superconductivity. Superconductivity - not fading electrical current in dissipative medium

The basic stages of development of the theory of superconductivity are traced. Despite of remarkable successes of theory, the physical explanation of the phenomenon of superconductivity-of the not fading electrical current in dissipative medium-is not exists until now. In the present paper on the basis of works (Klimontovich, 1990abc, 1999) the physical explanations of this phenomenon is considered. Will be show that the existence of not fading electrical current becomes possible due to occurrence of flicker noise and appropriate residual temporary correlations.
Toward human motion search using fingerprinting

This paper investigates a `fingerprinting' technique for describing human motion sequences. This work shows that human motion fingerprints can facilitate the search of human motion within large databases, similar to the fingerprinting approach used for the search of audio and image databases. This paper investigates the extraction of a reliable set of features from human motion capture data sequences that can be combined to generate a unique fingerprint. Results show that the fingerprints could be used to reliably differentiate between unique motions.
Which is the Best Physical Treatment for Osteoarthritis

Osteoarthritis (OA) is a degenerative disease of the articular cartilage, and it represents one of the most common causes of disability in the world. It leads to social, psychological and economic costs with financial consequences. Different OA treatments are usually considered in relation to the stage of the disease, such as surgical management, pharmacologic and non-pharmacologic treatments. In relation to mild OA, non-pharmacologic and behavioral treatments are recommended because they are less invasive and better tolerated by patients. All of these treatments used to manage OA are problematic, but solutions to these problems are on the horizon. For this reason, we decided to realize this report because until today, there has been very little information regarding the physical treatment of this important disease to help medical doctors and patients in the choice of the best adapted training to manage pain and disability limitations in patients with OA. The aim of this review is to find some answer in the management of OA through physical therapy treatment. In the present review, we analyze data from the most recent literature in relation to the effects of physical exercise on mild OA. All data suggest that training exercise is considered an effective instruments for the treatment of mild OA. The literature search was conducted on PubMed, using appropriate keywords in relation to exercise and osteoarthritis.
Design and simulation of magnetic nanoparticles detector based on the nonlinear magnetization

Magnetic nanoparticles have been widely used in the field of biotechnology and medicine, which has a great importance to precise and quantitative detection. This paper introduces a magnetic nanoparticles detection device of low cost, high sensitivity and real-time, which is verified by simulation. When the diameter of the magnetic nanoparticles is in the range of 50nm ~ 200nm, the peak of the induced voltage is in the level of millivolt (0.3mV ~ 20mV), and the larger the diameter of the magnetic nanoparticles is, the greater the induced signal strength will be.
Presynaptic serotonergic inhibition of GABAergic synaptic transmission in mechanically dissociated rat basolateral amygdala neurons

1 The basolateral amygdala (ABL) nuclei contribute to the process of anxiety. GABAergic transmission is critical in these nuclei and serotonergic inputs from dorsal raphe nuclei also significantly regulate GABA release. In mechanically dissociated rat ABL neurons, spontaneous miniature inhibitory postsynaptic currents (mIPSCs) arising from attached GABAergic presynaptic nerve terminals were recorded with the nystatin‐perforated patch method and pharmacological isolation. 2 5‐HT reversibly reduced the GABAergic mIPSC frequency without affecting the mean amplitude. The serotonergic effect was mimicked by the 5‐HT1A specific agonist 8‐OH DPAT (8‐hydroxy‐2‐(di‐n‐propylamino)tetralin) and blocked by the 5‐HT1A antagonist spiperone. 3 The GTP‐binding protein inhibitor N‐ethylmaleimide removed the serotonergic inhibition of mIPSC frequency. In either K+‐free or Ca2+‐free external solution, 5‐HT could inhibit mIPSC frequency. 4 High K+ stimulation increased mIPSC frequency and 8‐OH DPAT inhibited this increase even in the presence of Cd2+. 5 Forskolin, an activator of adenylyl cyclase (AC), significantly increased synaptic GABA release frequency. Pretreatment with forskolin prevented the serotonergic inhibition of mIPSC frequency in both the standard and high K+ external solution. 6 Ruthenium Red (RR), an agent facilitating the secretory process in a Ca2+‐independent manner, increased synaptic GABA release. 5‐HT also suppressed RR‐facilitated mIPSC frequency. 7 We conclude that 5‐HT inhibits GABAergic mIPSCs by inactivating the AC‐cAMP signal transduction pathway via a G‐protein‐coupled 5‐HT1A receptor and this intracellular pathway directly acts on the GABA‐releasing process independent of K+ and Ca2+ channels in the presynaptic nerve terminals.
Continuous Function Modeling of Head-Related Impulse Response

A continuous function model is developed for efficient head-related impulse response (HRIR) representation. In this model, HRIR is modeled as the response of an IIR filter via common factor decomposition analysis, where HRIRs at the same azimuth but different elevations share the same IIR pole part and HRIRs at the same elevation but different azimuthes share the same IIR zero part. The pole and zero coefficients of the proposed common factor IIR (CF-IIR) filters are further modeled using sinusoidal functions of azimuth and elevation, respectively. A fast algorithm for evaluating sinusoidal function for efficient synthesis of virtual 3D sound is also developed.
Upper bounds on inefficiency of taxed stackelberg network with cross-nested logit assignment

Upper bound of efficiency loss is a valuable issue for transport network design and planning. This paper ini- tially explores it in a taxed stochastic traffic network whose equilibrium flow pattern is deduced by a cross-nested Logit (CNL) flow assignment model, and a centrally controlling Stackelberg strategy. With the assumptions of separability, nondecreasingness, and convexity of the link time function and the fixed origin-destination (OD) demand of network, the equivalent variational inequality for a CNL-based stochastic user equilibrium (CNL-SUE) model is established and first used to obtain upper bounds on Stackelberg network inefficiency. Further, for low-degree link time function such as Bu- reau of Public Roads and the affine forms, their inefficiency upper bounds are analyzed with some meaningful results.
Multilingual Noise-Robust Supervised Morphological Analysis using the WordFrame Model

This paper presents the WordFrame model, a noise-robust supervised algorithm capable of inducing morphological analyses for languages which exhibit prefixation, suffixation, and internal vowel shifts. In combination with a naive approach to suffix-based morphology, this algorithm is shown to be remarkably effective across a broad range of languages, including those exhibiting infixation and partial reduplication. Results are presented for over 30 languages with a median accuracy of 97.5% on test sets including both regular and irregular verbal inflections. Because the proposed method trains extremely well under conditions of high noise, it is an ideal candidate for use in co-training with unsupervised algorithms.
The curious case of the missing employee in information systems research

ICT has transformed our working lives. The IS discipline has a great deal to contribute to better understand the employee management issues associated with the implementation of new technologies. This paper analyses the IS literature to ascertain the level of research being undertaken in the area of employee management and human resource management. The analysis illustrates that employee management is currently not a key area of research in the mainstream IS discipline. The antecedents as to why there have not been many papers published in this area are many and as yet unstudied. The paper concludes by suggesting future areas of research addressing employee management issues.
Reward-enhanced memory in younger and older adults.

OBJECTIVES We investigated how the anticipation of remote monetary reward modulates intentional episodic memory formation in younger and older adults. On the basis of prior findings of preserved reward-cognition interactions in aging, we predicted that reward anticipation would be associated with enhanced memory in both younger and older adults. On the basis of previous demonstrations of a time-dependent effect of reward anticipation on memory, we expected the memory enhancement to increase with study-test delay. METHOD In Experiment 1, younger and older participants encoded a series of picture stimuli associated with high- or low-reward values. At test (24-hr postencoding), recognition hits resulted in either high or low monetary rewards, whereas false alarms were penalized to discourage guessing. Experiment 2 was similar to Experiment 1, but the study-test delay was manipulated within subjects (immediate vs 24hr). RESULTS In Experiment 1, younger and older adults showed enhanced recognition for high-reward pictures compared with low-reward pictures. Experiment 2 replicated this finding and additionally showed that the effect did not extend to immediate recognition. DISCUSSION The current findings provide support for a time-dependent mechanism of reward-based memory enhancement. They also suggest that aging leaves intact the positive influence of reward anticipation on intentional long-term memory formation.
A longitudinal analysis of the influence of race on cognitive performance.

OBJECTIVES Whether there are racial and ethnic disparities in the rate of cognitive decline among older adults is not clear. The purpose of this study was to determine if there are differences in cognitive decline among racial and ethnic older adults. METHOD Data were from the Health and Retirement Study, waves 1998-2010. Participants were community dwelling at baseline (n = 9,492), mostly female participants (58.8%), ranged in age from 65 to 105 years (M = 74.41, SD = 6.97), and had education levels that averaged less than high school (M = 11.7, SD = 3.4). Cognition was examined using a combined score from word recall, Serial 7's, backward counting, and naming tasks. To determine changes in cognition across 12 years, we utilized mixed effects models. RESULTS Results indicated that after adjusting for covariates, race or ethnicity was unrelated to changes in cognitive performance, but there were significant differences in baseline cognition and these differences were more pronounced after adjusting for age, gender, education, poverty, heart disease, diabetes, high blood pressure. DISCUSSION It is evident that there are significant differences in baseline cognition, although the rate of cognitive decline across 12 years did not vary significantly by race. These findings support previous assertions that the rate of cognitive decline is not associated with race and suggest that it is likely that baseline cognitive performance is a better indicator of performance over time.
Automatic Testing and Measurement of QoE in IPTV Using Image and Video Comparison

Orange Labs Spain, has developed a proof ofconcept aimed at exploring the possibility of automating the testsrequired by new evolutions of the IPTV service, and thusshortening the lifecycle and reducing the overall developmentcosts. It‘s based on an automaton that interacts with the set-top boxjust by emulating a human being (or tester): sending IR remotecontrol commands and analyzing the video output, as a set ofimage comparisons against a valid reference. The analysis unveileda future applicability of the same concept in objectively measuringthe QoE (Quality of Experience). Although there are techniquesand measuring equipment in the industry, they often mix QoS(Quality of Services) with QoE, and causes with effects. In ouranalysis, we propose to clearly separate QoE (as an effect) fromQoS (as possible causes), and also to split the contributions to QoEin those that occur in the preparation of the content (such as theencoding of VoDs (Video on Demand) in backoffice), and thosethat take place at the moment of content delivery itself. Finally, weconsider that the customer enviroment, , is an element that needs tobe considered as a critical part the loop of quality. As aconclusion, we consider that managing and control the QoE is thefuture to improve the Customer Experience
Biocompatibility and Alkaline Phosphatase Activity of Phosphorylated Chitooligosaccharides on the Osteosarcoma MG63 Cell Line

Phosphorylated chitooligosaccharides (P-COS) were prepared using a H3PO4, P2O5, Et3PO4 and hexanol solvent system. The P-COS were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Thermo gravimetric-Differential Thermal Analyzer (TG-DTA), 13C NMR, 31P NMR, X-ray diffraction analysis, solubility studies, biocompatibility and Alkaline Phosphatase Activity (ALP). The results reveal that phosphorylation occurred at the C3 and C6 position of OH groups and the C2 position of NH2 group. FT-IR confirmed no decomposition in pyranose ring in P-COS even with heating and treatment in acidic conditions. The amorphous nature of P-COS was confirmed by X-ray diffraction analysis. Further, the biocompatibility and alkaline phosphatase activity of P-COS were checked against the osteosarcoma MG63 cell line at different concentrations and no cytotoxicity was observed. After 12 h and 24 h of incubation, the ALP activity of P-COS was higher compared with the control group. These results suggest that P-COS is a biocompatible material and in future P-COS could open up a number of promising pharmaceutical and clinical applications to mankind.