Miracle-dz/UniFAR-FTUs huggingface dataset:
Personality, Reinforcement and Learning

Conflict in predictions resulting from Eysenck's (1957) and Gray's (1970) theoretical formulations on personality and conditioning were tested at the behavioural level. Given conditions which do not produce over-arousal, it would be predicted from Eysenck's position that Introverts would condition better than Extraverts. From Gray's formulation it would follow that Introverts condition better if negative reinforcement is used and Extraverts condition better if positive reinforcement is used. The two opposing predictions were tested in pursuit rotor learning by either positively or negatively reinforcing the hit/miss dimension of performance by 166 males aged 14 to 15 yr. The results gave support to Gray's position but if over-arousal is assumed Eysenck's position is tenable.
T‐cell receptor excision circles: a novel prognostic parameter for the outcome of transplantation in multiple myeloma patients

Summary. This study investigated whether T‐cell receptor excision circles (TRECs) are a prognostic marker for the outcome of myeloma patients undergoing a tandem autologous peripheral blood stem cell transplantation (PBSCT). Twenty‐five patients were enrolled. Samples were obtained at study enrolment, after conventional therapy, between first and second transplantation and 3, 6, 12 and 24 months after the second PBSCT. TRECs were quantified using real‐time polymerase chain reaction. A high variation in TREC levels was found at diagnosis (median TREC level 136/105 peripheral blood mononuclear cells (PBMCs); range 1–1729), suggesting individual differences in thymic output of naive T cells. Patients with more than 136 TRECs/105 P BMCs at diagnosis had a statistically significant better overall survival (P = 0·05) and event‐free survival (P = 0·045), whereas low TREC levels correlated with a higher incidence of infectious complications. Median TREC values were lowest after the first PBSCT (52/105 PBMCs) and reached the baseline 12 months after the second transplantation. Patients with high TREC levels after the second PBSCT had a significantly higher probability of being in complete or partial remission 30 months after the second PBSCT. TREC levels were not correlated with β2‐microglobulin and C‐reactive protein levels at diagnosis. These data suggest that TRECs could be a relevant prognostic factor for patients who receive high‐dose chemotherapy and autologous PBSCT.
Evolution of metropolitan area networks to broadband ISDN

Broadband architecture and network evolution strategies based on interface standards emerging from the IEEE 802.6 MAN Committee and the American National Standards Institute (ANSI) T1S1 and CCITT Working Groups on broadband integrated services digital networks (BISDN) are outlined. The recent history of both the MAN and BISDN standards activities is traced, and some of the motivations behind specific developments are discussed. In the context, local area networks (LANs) and MANs are compared and contrasted, with special attention given to requirements specific to a public MAN. The convergence of the MAN and BISDN protocols is examined. The benefits of commonality between these two standards are described in terms of lower-cost network architectures, and terminal equipment is examined. It is shown that broadband networks can exploit the synergy between 802.6-based MANs and wider-area BISDN networks, and that 802.6-based MANs can gracefully evolve into countrywide networks using BISDN asynchronous transfer mode (ATM) switching. Example networks are used to illustrate the evolution proposals. <<ETX>>
Optical absorption by aggregates of small particles.

The optical absorption of a medium containing aggregates of small particles is calculated in the quasistatic limit using a diffuse-cluster model in which each aggregate is considered to be a sphere with a radially dependent filling factor. For metallic particles, aggregation broadens the Froehlich resonance and increases the low-frequency absorption by about a factor of 100.
Ein Verfahren der mathematischen Logik

Zu jedem Zählausdruck A in der allgemeinen pränexen Normalform kann man bekanntlich einen, in bezug auf die Erfüllbarkeit, gleichwertigen Zählausdruck B in der spezielleren Normalform (Skolemsche Nonnalfonn) konstruieren, indem man auf A mehrmals (n–1 Mal) das sogenannte Skolemsche Verfahren anwendet. Dieses Verfahren hat nämlich die Eigenschaft, daß es auf einen Zählausdruck in der pränexen Normalform n-ten Grades (n > 1) angewandt zu einem gleichwertigen Zählausdruck in der pränexen Normalform (n–1)-ten Grades führt, wobei unter “Grad eines Zählausdrucks in der pränexen Normalform, die ein mit einem Allzeichen beginnendes und mit einem Seinszeichen endendes Präfix hat” die Anzahl der durch Seinszeichen voneinander getrennten Komplexe von Allzeichen dieses Präfixes zu verstehen ist. Da nun A—wie aus (1) ersichtlich ist—ein Zählausdruck n-ten Grades ist, so kommt man nach (n–1)-maliger Anwendung des Skolemschen Verfahrens tatsächlich zu einem gleichwertigen Zählausdruck ersten Grades, also zu einem gleichwertigen Zählausdruck der Form (2).
Innocipher: A Novel Innocent-Cipher-Based Cryptography Paradigm—High Level of Security for Fooling the Enemy

ABSTRACT The recent advances in cryptanalysis techniques are the major threat to cryptography. A leakage of information about the cryptosystem used by either a fatal shortcoming or an insider enemy can easily defeat the cryptographic goal. An adversary may succeed in decrypting ciphertexts, while users of a particular cryptosystem unwarily continue using same vulnerable encryption techniques. Such major concerns motivate the development of a novel Innocent-Cipher-Based Cryptography Paradigm (Innocipher), which is presented in this paper. Innocipher focuses on high level security that protects private information through two phases. First, Innocipher system conceals the required data in a legible form of legitimate plaintext other than ciphertext, for example, legitimate text, graph, game, and image, that looks benign and legitimate. Second, it converts the output of the first phase, the encoded data in the legible form, into a ciphertext. The main advantage of the Innocipher paradigm is that if a worst case scenario occurred, which is an adversary succeeding in decrypting a cipher message, then an adversary will be fooled by getting a legible form of legitimate text. At this point, the adversary will stop any further investigation while an original message is not revealed. This fooling mechanism of Innocipher is the key-feature that enables a multilayer of security for protecting valuable information. The presented implementation and validation of Innocipher demonstrates the robust capabilities of achieving the goal of securing information in static stage and during data transmission to its legitimate recipient.
Recherche des molécules antiparasitaires à l’interface de l’ethnopharmacologie, des sciences analytiques et de la biologie

Cette these est developpee en 3 chapitres. Le premier chapitre decrit un travail d’ethnopharmacologie dans deux communautes de metis de l’Amazonie peruvienne. Les resultats montrent un inventaire de 46 plantes regroupees en fonction de leurs utilisations et preparations traditionnelles. Les activites in vitro contre trois parasites (Plasmodium falciparum, Leishmania donovani, Trypanosoma brucei gambiense) et leur cytotoxicite sont rapportees. Parmi toutes ces plantes Grias neuberthii (Lecythidaceae) et Costus curvibracteatus (Costaceae) ont montre une forte activite antiparasitaire, associe a une forte cytotoxicite pour C. curvibracteatus.Le deuxieme chapitre decrit l’exploration, par spectrometrie de masse (SM) dans un milieu biomimetique reproduisant la vacuole digestive de Plasmodium (VDP), des liaisons intermoleculaires forme entre l’heme et des ligands. Les resultats pour des ligands de la famille des methoxyflavones suggerent qu’il n’existe pas de relation positive entre la stabilite de la liaison a l’heme et l’activite biologique contre deux souches de P. falciparum (3D7 et W2). Une correlation est suggeree entre la presence d’une substitution methoxyle en R5 de la flavone, la liaison a l’heme et l’hydrophobicite (cLogP). Cette relation peut s’expliquer en partie par l’influence des liaisons hydrogene avec le du groupe carbonyle. Des analyses d’arrimage moleculaire ont ete aussi developpees dans le but de comprendre les forces electrostatiques impliquees dans cette liaison. Le meme type d’etude a ete appliquee a des sondes fluorescentes originales derivees de l’artemisinine (ART). La stabilite evaluee par CID montre des similitudes de comportement vis-a-vis de l’heme entre une des sonde et l’ART. La stabilite de trois sondes en differentes conditions mimant la biologie de Plasmodium a ete evaluee.Le troisieme chapitre detaille le developpement d’une methode de biodereplication d’extraits bruts, en utilisant la methodologie de liaison a l’heme par SM. La plante Piper coruscans (Piperaceae) a ete utilisee pour l’application. La visualisation des adduits formes par SM a ete faite de maniere rapide par l’intermediaire de reseaux moleculaires L’isolement des produits cibles a ete faite avec la chromatographie de partage liquide et chromatographie liquide preparative en un ou deux etapes. Treize molecules ont ete isolees dont dix produits deja connus dans la litterature : six flavanones, trois chalcones, un alkylamide; une indanone isolee pour la premiere fois comme produit naturel, et deux produits naturels nouveaux : une kavalactone et un derive de l’acide cinnamique. Parmi toutes ces molecules, une chalcone valide l’activite biologique de la plante et montre une liaison intermediaire avec l’heme.
On the Study of Vehicle Density in Intelligent Transportation Systems

Vehicular ad hoc networks (VANETs) are wireless communication networks which support cooperative driving among vehicles on the road. The specific characteristics of VANETs favor the development of attractive and challenging services and applications which rely on message exchanging among vehicles. These communication capabilities depend directly on the existence of nearby vehicles able to exchange information. Therefore, higher vehicle densities favor the communication among vehicles. However, vehicular communications are also strongly affected by the topology of the map (i.e., wireless signal could be attenuated due to the distance between the sender and receiver, and obstacles usually block signal transmission). In this paper, we study the influence of the roadmap topology and the number of vehicles when accounting for the vehicular communications capabilities, especially in urban scenarios. Additionally, we consider the use of two parameters: the SJ Ratio (SJR) and the Total Distance (TD), as the topology-related factors that better correlate with communications performance. Finally, we propose the use of a new density metric based on the number of vehicles, the complexity of the roadmap, and its maximum capacity. Hence, researchers will be able to accurately characterize the different urban scenarios and better validate their proposals related to cooperative Intelligent Transportation Systems based on vehicular communications.
High precision subsurface photodisruption in human sclera.

BACKGROUND AND OBJECTIVES Femtosecond pulses can generate high precision subsurface photodisruption in transparent tissues, such as the cornea. We used femtosecond laser technology to demonstrate early proof of concept for high precision subsurface photodisruption in the translucent sclera. This technique may ultimately enable novel surgical procedures for the treatment of glaucoma and/or presbyopia. STUDY DESIGN/METHODS AND MATERIALS: Microjoule femtosecond pulses from two different sources, 1060 and 775 nm, were used to make subsurface incisions in human sclera in vitro. Scleral tissue was dehydrated to improve translucency at these wavelengths. The beam was focused to a 1.5 (775 nm) or 5 microm spot size (1060 nm) and scanned below the tissue surface at various depths to produce four incision patterns. RESULTS Photodisruption on the backsurface of the sclera was achieved without damage to overlying tissue. Several types of intrascleral incisions were made, including transcleral channels and grooves for scleral implants. CONCLUSIONS High precision, subsurface scleral photodisruption can be achieved in vitro for a variety of intrascleral incisions. Further studies are required to determine if this technique is applicable in vivo for actual surgical applications.
An LTE offload solution using small cells with D2D links

Small cells are an attractive technology for offloading traffic from the macrocellular network. The first small cell architecture for offload was the femto cell, but it was not widely commercially deployed. This is because it had some drawbacks in terms of network planning such as interference handling. In this paper, we propose and study a new concept for a low-cost small cell base station (BS) for traffic offloading from the macrocellular network. The main difference from a femto cell is that the communication with the user terminal (UE, in 3GPP terminology) uses the device-to-device (D2D) radio interface. The D2D radio interface is chosen because of the close proximity between UEs and small-cell BSs and its support for opportunistic access and flexible resource allocation. The proposed concept also increases operational efficiency by reducing the network planning effort required by the projected increased deployment density of BSs to meet future traffic demand. We describe the benefits of this offload solution for LTE networks and quantify the gains via analysis and simulation.
Quantitative assessment of air trapping in chronic obstructive pulmonary disease using inspiratory and expiratory volumetric MDCT.

OBJECTIVE The purpose of our study was to determine the attenuation threshold value for the detection and quantification of air trapping using paired inspiratory and expiratory volumetric MDCT scans and to assess whether the densitometric parameter can be used for the quantification of airway dysfunction in chronic obstructive pulmonary disease (COPD) regardless of the degree of emphysema. MATERIALS AND METHODS This study included 36 patients with COPD who underwent 64-MDCT. The entire lung volume with attenuation between -500 and -1,024 H was segmented as whole lung. The lung volume with attenuation between -500 and -950 H was segmented as limited lung, while the lung volume of less than -950 H was segmented as emphysema and eliminated. The relative volumes for limited lung (relative volume(n-950)) with attenuation values below thresholds (n) ranging from -850 to -950 H, and relative volume for whole lung (relative volume(<n)) were obtained on inspiratory and expiratory CT. Then the differences of relative volumes after expiration in whole lung (relative volume change(<n)) and limited lung (relative volume change(n-950)) were calculated. Patients were classified into two groups according to mean relative volume less than -950 H. Correlations between densitometry parameters and pulmonary function tests (PFTs) reflecting airway dysfunction were evaluated. RESULTS The highest correlation with PFTs was observed at the upper threshold of -860 H. In the moderate to severe emphysema group (relative volume(<-950) > 15%), relative volume change(860-950) significantly correlated with the results of PFTs, whereas no significant correlations were seen between relative volume change(<-860) and PFTs. In the minimal or mild emphysema group (inspiratory relative volume(<-950) < 15%), all densitometric parameters correlated with PFTs. CONCLUSION The densitometric parameter of relative volume change calculated on paired inspiratory and expiratory MDCT using the threshold of -860 H in limited lung correlated closely with airway dysfunction in COPD regardless of the degree of emphysema.
Averaged model for power converters with state jumps

Averaging techniques are widely used for the analysis and control design of switched electronic systems. Some topologies of power electronics converters, when represented by using ideal switches, are characterized by state discontinuities, also called state jumps, which may occur at the switching time instants. In this case, the classical averaged models, which are based on the modes representations with ordinary differential equations, are not effective. In this paper an averaged model for switched systems whose modes are described by differential algebraic equations is proposed. The averaged model is obtained by considering a suitable “jump mode” whose dynamic matrix depends on the modes projectors. The proposed model extends the classical averaged models and switched capacitor converters are considered for showing its effectiveness.
Soluble forms of YlCrh1p and YlCrh2p, cell wall proteins of Yarrowia lipolytica, have β‐1,3‐glycosidase activity

Crh1p and Crh2p of Saccharomyces cerevisiae are cell wall proteins covalently attached to cell wall glucan and are thought to be putative glycosidases involved in cell wall remodelling. We investigated whether YlCrh1p and YlCrh2p, the Yarrowia lipolytica proteins homologous to ScCrh1p and ScCrh2p, had the required glycosidase activity for cell wall biosynthesis and maintenance. Ylcrh1Δ and Ylcrh2Δ mutants showed sensitivity to compounds that interfere with cell wall construction. Soluble forms of YlCrh1p and YlCrh2p that lacked the C‐terminal consensus sequence for GPI anchoring showed glycosidase activity on laminarin, a substrate carrying β‐1,3‐glycosidic linkage. Our study suggests that the YlCrh1p and YlCrh2p may participate in cell wall biosynthesis and remodelling through their β‐1,3‐glycosidase activity. Copyright © 2006 John Wiley & Sons, Ltd.
Activation of oxidative stress genes by mutations at the soxQ/cfxB/marA locus of Escherichia coli

Exposure of Escherichia coli to superoxide-generating drugs, such as menadione or paraquat, uniquely induces approximately 40 proteins, nine of which are under the positive control of the soxR locus (at min 92). We report here that certain mutations at a separate locus that we have named soxQ (at min 34) confer some of the phenotypes seen in soxR-constitutive strains, including resistance to menadione. A previously known mutation called cfxB, identified through antibiotic resistance, is likely an allele of soxQ. The soxQ1 and cfxB mutations cause transcriptional activation of the genes that encode Mn-containing superoxide dismutase, glucose 6-phosphate dehydrogenase, and the soi-17/19::lac and soi-28::lac fusions. These genes are also activated by soxR, but the soxQ1 and cfxB mutations increase the synthesis of seven other proteins not influenced by soxR. Moreover, the soxQ1- and cfxB-dependent phenotypes do not depend on the soxR gene, and gene induction by soxR in response to redox stress does not depend on the soxQ locus. As well as increasing cellular resistance to some oxidants, the soxQ1 and cfxB mutations confer elevated resistance to various antibiotics, probably via diminished expression of outer membrane protein OmpF. The marA1 multiple-antibiotic resistance mutation (also at min 34) behaves like a weak allele of soxQ but probably resides in a nearby gene that, with soxQ, is part of a regulatory complex. We propose that soxQ helps control some oxidative stress proteins as part of another regulon that responds to an unknown environmental signal.
Evaluasi Karakteristik Psikometrik Tes Bakat Differensial dengan Teori Klasik

The aims of the research were to analyze the psychometric characteristics of a set Differential Aptitude Test (DAT) consisting of five subtests, they are: numerical, abstract reasoning, space relation, and mechanics. This research using quantitative research method. The data ware collected from documentation pschological testing in UNY. The total data of the study are 2118 youth students in Yogyakarta. The analysis of psychometric characteristics of instrument using classical approach. The characteristic instrument are index of difficulty, index of disciminancy, effectifitas distractor, and reliability coefficient. The data were analyzed with Microcat ITEMAN 3.0 program. The result of analysis can be concluded that there are many information about item characteristic. The items characteristik have variation in index difficulty. Majority items have good index discimination, and many items are bad or need improvement. The items of abstract reasoning subtes have most distractor option which are not functioning properly, and all subtests in DAT instruments are reliable.
Gain and Bandwidth Enhancement of 2 × 2 Square Dense Dielectric Patch Antenna Array Using a Holey Superstrate

Gain enhancement and bandwidth improvement of a 2 × 2 square dense dielectric patch antenna using a holey superstrate are proposed. This aperture-coupled antenna is fed by a conventional power divider. A dielectric superstrate layer is utilized to enhance the antenna gain. Moreover, by drilling a set of identical circular holes in the superstrate layer, the antenna bandwidth is improved, and the sidelobe level is decreased. The proposed antenna is fabricated and tested. The prototype yields an impedance bandwidth of 15.35% from 26.5 to 30.8 GHz. The proposed antenna exhibits a flat measured gain of about 16 dBi over all the bandwidth with a high simulated radiation efficiency of 92%. Furthermore, the sidelobe levels of the antenna are −15.8 and −21 dB in the E-plane and H-plane, respectively.
The Role of Social Media in Collaborative Learning: A Coordination Perspective

As social media is widely adopted in collaborative learning that make team virtual, it is critical for teams to identify and leverage knowledge of team members. Yet little is known how social media influence teams to coordinate their knowledge and collaborate effectively. In this study, we investigate the roles of two kinds of social media activity—information processing and social connection in teamwork by applying communication and transactive memory systems (TMS) as the mechanisms of explicit and implicit coordination respectively. Drawing on the data from a study that involves 40 teams of graduate students performing a complex research report over 8 weeks, we find that both TMS and communication can significantly improve teamwork outcomes. As to social media activities, the results reveal that both information processing and social connection can enhance the level of TMS, however, only social connection is positively related to communication, unfortunately, information processing can’t significantly strengthen communication quality. Possible reasons are discussed and some theoretical and practical implications are also put forward.